Both bridge cranes and gantry cranes belong to special equipment. Those with more than 3 tons need to be submitted for inspection and acceptance by the special inspection institute . The editor will share with you the original record sheet of the acceptance inspection of the lower bridge (gantry) crane.
| Use unit | ||||||
| Device registration code | Specification model | |||||
| Equipment name | crane | 作業レベル | ||||
| Rated lifting capacity | (t) | スパン | (m) | |||
| Manufacturing unit | Product factory number | |||||
| Installation unit | Installation Location | |||||
| User equipment number | Inspection date | year month day | ||||
| working environment | Open air □; non open air □; toxic □; high temperature □; dust □; other □ | |||||
| Inspection condition | ||||||
| Test based on | 1. " Regulations for the Supervision and Inspection of Lifting Machinery " 2．"Universal Bridge Crane" (GB/T14405-1993) 3. "Universal Gantry Crane" (GB/T14406-1993) 4. "Code for Construction Acceptance of Lifting Equipment Installation Engineering" (GB50278-1998) 5. "Code for Construction and Acceptance of Electrical Installations" (GB50256—1996) |
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| Main inspection equipment |
Serial number | Equipment name | Specification model | Number in the hospital | ||
| 1 | Automatic Laser Leveling Swinger | LP30AS | WH-WJ-183 | |||
| 2 | Clamp ammeter | DM6266 | WH-WJ-196 | |||
| 3 | Ground resistance measuring instrument | CA6415 | WH-WJ-141 | |||
| 4 | Insulation resistance measuring instrument | 3021 | WH-WJ-180 | |||
| 5 | Handheld laser rangefinder | 729528 | WH-WJ-169 | |||
| 6 | Automatic Anping Level | AL32 | WH-WJ-146 | |||
| test results | ||||||
| Remarks | "/" means no item, "√" means conformity, "×" means non-conformity, and "※" means important item. | |||||
Check: Check: Inspector:
Original record of acceptance inspection of bridge (gate) crane
| Serial number | Test items | Item Number | Inspection content and requirements | results of testing | ||
| 1 | 1 technical information | Manufacturing related information | 1.1 | 製造 units should provide: |
Valid qualification certificate; | |
| Product certification; | ||||||
| Random documents such as installation and maintenance instructions; | ||||||
| Type test reports should be provided when necessary. | ||||||
| 2 | Installation related information | 1.2 | Install the unit should be provided for: |
a. Construction record and self-inspection report; | ||
| b. Accident record and handling report during installation; | ||||||
| c. Proof of design change approved by the manufacturer during the installation process. | ||||||
| 3 | Renovation (overhaul) related information | 1.3 | In addition to the content required by items 1 and 2, the transformation (overhaul) unit should also provide the list of the transformation (overhaul) part, the certificate of the main components, the drawings and calculation data of the transformation part approved and signed by the transformation unit. | |||
| 4 | Use relevant information | 1.4 | The user shall provide registration and operation management system materials and equipment technical files (including the materials required by 1.1, 1.2 and 1.3, maintenance, routine inspections and records of failures and accidents, etc.). The acceptance inspection of newly added equipment only verifies the data of the operation management system. | |||
| 5 | 2. Operating environment and appearance | Hazardous environment safety protection measures | 2.1 | Cranes used for dust, poison, radiation, noise, high temperature and other harmful environments should have necessary protective measures to protect the safety and health of the driver. | ||
| 6 | Lifting weight and inspection mark | 2.2 | The obvious parts of the crane should have a clear rated lifting capacity mark and a safety inspection pass mark of the quality and technical supervision department. | |||
| 7 | Dangerous part safety signs | 2.3 | The trolley slip line, rail sweeping plate, and cable drum shall be painted with a red safety color. | |||
| The spreader, trolley, the outer side of the end beam of the bridge crane of the pedestrian passage, the rail clamp, and the trolley slip line protection plate should be yellow and black in safety colors. | ||||||
| 8 | safe distance | 2.4 | The safety distance between the fixed object and the moving object is not less than 0.5m, the pedestrian passages and the parts around the parts that can be reached by the crane operation and the people need to reach maintenance are not less than 0.5m. The safety distance between objects is not less than 0.1 m. If the safety distance is not enough, effective protective facilities should be adopted. | |||
| 9 | Maintenance work space or auxiliary maintenance platform | 2.5 | The crane shall have a safe and convenient maintenance space or provide an auxiliary maintenance platform. | |||
| 10 | Passages, ladders, railings and walkways | 2.6 | The passage leading to the crane and the crane should ensure the safe and convenient arrival of personnel. The headroom of any place should not be less than 1.8 m, and the ladder, railing and walking platform should comply with the relevant regulations of GB6067. | |||
| Serial number | Test items | Item Number | Inspection content and requirements | results of testing | |
| 11 | 3. The
metal metal junction structure |
Metal structure condition | 3.1※ | The main force-bearing components should not be overall instability, severe plastic deformation and cracks. When the overall instability is not repaired, it should be scrapped; when serious plastic deformation causes the working mechanism to fail to operate normally, if it cannot be repaired, it should be scrapped; under the rated load, when the lower deflection value of the main girder reaches S/700 below the horizontal line, such as If it cannot be repaired, it should be scrapped; if rust or corrosion exceeds 10% of the original thickness, it should be scrapped; cracks should be repaired or measures should be taken to prevent crack propagation, otherwise it should be scrapped. | |
| 12 | Metal structure connection | 3.2※ | There is no obvious visible welding defect in the connection weld of the metal structure. The connection of bolts or rivets shall not be loose, and there shall be no defects such as missing parts or damage. The high-strength bolt connection should have sufficient pre-tightening torque. | ||
| 13 | The camber and upturn of the main beam | 3.3 | The camber of the main girder of the newly installed bridge and gantry cranes (including electric hoist bridge and gantry) cranes is (0.9~1.4) S/1000, and the camber of the gantry cranes is (0.9~1.4) L 1 /350 ; The camber of the main girder of the electric single girder and electric シングルガーダーサスペンションクレーン is (1~1.4) S/1000. After the load test, the camber of the bridge and gantry crane should not be less than 0.7S/1000, and the camber should not be less than 0.7L 1 /350; the camber of the main girder of the electric single-beam and electric single-girder suspension cranes should not be less than 0.8S /1000. | See the attached table , the degree of camber: mm the degree of upward warping: mm |
|
| 14 | Local flatness of main beam web | 3.4 | There should be no serious unevenness in the web of the main beam. The local flatness shall not be greater than 0.7δ within H/3 of the flange plate of the compression zone, and the remaining area shall not be greater than 1.2δ. | ||
| 15 | Span deviation | 3.5 | When the crane is newly installed, the span deviation should be measured when the rail gnawing phenomenon occurs in the operation of the cart. Universal bridge cranes, electric single-beam cranes, and electric single-beam suspension cranes with detachable end beams and boring and direct wheel-mounted structures. Span limit deviation: when span S≤10m, deviation △S≤±2mm; when S＞10m , △S=±[2+0.1×(S-10)]mm; general-purpose bridge cranes with welded end beams and angular bearing box-mounted wheel structure △S≤±5mm, the relative difference is not more than 5mm. The span limit deviation of general gantry crane is: when S≤26m, △S≤±8mm, the relative difference is not more than 8mm; when S>26m, △S=±10mm, and the relative difference is not more than 10mm. | ||
| 16 | Limit deviation of trolley gauge | 3.6.1 | The limit deviation of the gauge of the normal track box girder and the semi-off track box girder of less than 50t: the end is ±2mm, and the span is +1～+5mm when S≤19.5m, and +1～+7mm when S＞19.5m . Other beams shall not exceed ±3mm. | ||
| 17 | Rail joint condition | 3.6.2 | The height difference of the track joint d≤1mm; | ||
| Lateral misalignment f≤1mm; | |||||
| Joint gap e≤2mm. | |||||
| Serial number | Test items | Item Number | Inspection content and requirements | results of testing | |
| 18 | 3. Metal structure | Minimum track length and stop | 3.6.3 | The length of the shortest track at both ends is greater than 1.5m, and a block should be added at the end of the track. | |
| 19 | Structural safety and fixation of the cab | 3.7.1※ | The structure of the cab must have sufficient strength and rigidity. The connection between the driver's cab and the crane should be firm and reliable. | ||
| 20 | Necessary facilities and door locks in the driver's cab | 3.7.2 | Appropriate fire extinguishers, insulated floors and acoustic signals outside the driver’s compartment should be installed in the driver’s compartment, and a locking device must be installed on the door. | ||
| twenty one | Driver's cab vision, space and door opening direction | 3.7.3 | The cab should have a good view. The headroom inside the cab is generally not less than 2m, and the bottom area is not less than 2m2. The opening direction of the door should meet the requirements of relevant standards. | ||
| twenty two | 4. Cart track | Drum gauge deviation | 4.1 | When the crane is newly installed, when the track gnawing phenomenon occurs in the operation of the crane, the gauge deviation of the crane should be measured. The limit deviation of the trolley gauge is: when S≤10m, △S=±3mm; S>10m, △S=±[3+0.25×(S-10)]mm, but the maximum shall not exceed ±15mm. |
|
| twenty three | Track joint clearance | 4.2 | The gap between the track joints is not more than 2mm. | ||
| twenty four | Deviation between track center and beam center | 4.3 | The deviation between the actual center of the track and the actual center of the beam shall not exceed 10mm, and shall not exceed half of the thickness of the crane beam web. | ||
| 25 | Track fixed status | 4.4 | The bolts and pressure plates for fixing the track should not be missing. The pressure plate is firmly fixed, and the gasket must not move. | ||
| 26 | Track defects and operating conditions | 4.5 | The track should not have cracks, severe wear and other defects that affect safe operation. There should be no jamming in the operation of the suspended crane | ||
| 27 | 5. Main parts and mechanisms | Hook mark and anti-decoupling device | 5.1.1 | The hook should be marked and anti-decoupling device. Casting hook is not allowed. | |
| 28 | Hook defects and dangerous section wear | 5.1.2※ | The hook should not have defects such as cracks, peeling, etc., and repair welding is not allowed if there are defects. The amount of wear on the dangerous section of the hook; the hook manufactured according to GB10051.2 should be no more than 5% of the original height; the hook manufactured according to the industry standard should be no more than 10% of the original size. When the plate hook bushing wears up to 50% of the original size, the bushing should be scrapped. | ||
| Serial number | Test items | Item Number | Inspection content and requirements | results of testing | |
| 29 | の
main To Zero section member の machine mechanism |
Increase of hook opening | 5.1.3 | Increase in opening degree: hooks manufactured according to GB10051.2 should not be larger than 10% of the original size; other hooks should not be larger than 15% of the original size. | |
| 30 | Wire rope selection, installation and rope end fixing | 5.2.1※ | The specification and model of the steel wire rope should meet the design requirements, match the pulley and drum, and be threaded and wound correctly. The rope end should be firm and reliable. When the pressure plate is fixed at least 2 (no less than 3 electric hoists), the rope end fixing device on the reel should have anti-loosening or self-tightening performance; when the metal compression joint is fixed, the joint should not be cracked; wedges When fixing, the wedge sleeve should not be cracked, and the wedge should not be loose. When the rope clamp is fixed, the rope clamp should be installed correctly, and the number of rope clamps should meet the regulations. | ||
| 31 | Number of safety loops of wire rope | 5.2.2 | In addition to the number of turns of the fixed wire rope, at least 2 turns of the wire rope should be reserved on the drum as a safety ring. | ||
| 32 | Wire rope lubrication and interference | 5.2.3 | The wire rope should be well lubricated. It should not rub against metal structures. | ||
| 33 | Wire rope defects | 5.2.4 | The wire rope should not be deformed such as kinking, flattening, bending, broken strands, cage distortion, broken core, etc. | ||
| 34 | Wire rope diameter wear | 5.2.5 | The reduction in the diameter of the wire rope should not be greater than 7% of the nominal diameter. | ||
| 35 | Number of broken wires | 5.2.6 | The number of broken wires in the wire rope should not exceed the value specified in Schedule 4 of the Regulations. | ||
| 36 | Pulley selection | 5.3.1 | The selection of the pulley diameter D 0min (D 0min=h 2·D) shall not be less than the value specified in Table 5. | ||
| 37 | Pulley defect | 5.3.2 | The pulley should rotate well, and should be scrapped in the following situations: a. Defects that damage the wire rope such as cracks and broken rims; |
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| b. The wall thickness of the wheel groove wears up to 20% of the original wall thickness; | |||||
| c. The diameter of the bottom of the wheel groove is reduced by 50% of the diameter of the wire rope or there is a groove at the bottom of the groove. | |||||
| 38 | Pulley anti-drop groove device | 5.3.3 | There should be a device to prevent the wire rope from falling off the groove, which is reliable and effective. | ||
| 39 | Brake setting | 5.4.1※ | Each mechanism of a power-driven crane should be equipped with a brake, and the brake of the hoisting mechanism should be normally closed. For hoisting hot metal, flammable, explosive and other dangerous goods, as well as the lifting mechanism that may cause major danger or loss after an accident, each set of driving devices should be equipped with two sets of brakes. | ||
| 40 | Defects of brake parts | 5.4.2 | The parts of the brake should not have defects such as cracks, excessive wear, plastic deformation, missing parts, etc. The hydraulic brake should not leak oil. If the brake pad is worn to 50% of the original thickness or the leaking rivet should be scrapped. | ||
| Serial number | Test items | Item Number | Inspection content and requirements | results of testing | |
| 41 | の
main To Zero section member の machine mechanism |
Brake wheel and friction plate | 5.4.3 | The contact between the brake wheel and the friction plate should be even, and there should be no defects or oil stains that affect the braking performance. | |
| 42 | Brake adjustment | 5.4.4 | The brake is adjusted properly, and the brake is stable and reliable. | ||
| 43 | Brake defect | 5.4.5 | The brake wheel should be free of cracks (not including micro cracks in the hardened layer on the surface of the brake wheel), and the unevenness should not be greater than 1.5 mm. There must be no scratches caused by the friction pad fixing rivets. | ||
| 44 | Reducer connection and fixing | 5.5.1 | The anchor bolts and shell connecting bolts must not be loosened, and the bolts must not be damaged. | ||
| 45 | Reducer working condition | 5.5.2 | There should be no abnormal sound, vibration, heat, and oil leakage during work. | ||
| 46 | Open gear meshing and defect | 5.6 | Gear meshing should be smooth, free of cracks, broken teeth and excessive wear. | ||
| 47 | Wheel defect | 5.7 | Wheels should not be excessively worn. When the rim wear reaches 50% of the original thickness or the tread wear reaches 15% of the original thickness, it should be scrapped. | ||
| 48 | Coupling and its working condition | 5.8 | There is no defect in parts, no loose connection, no violent impact sound during operation. | ||
| 49 | Reel selection | 5.9.1 | The diameter of the reel D 0min (D 0min=h 2·d) should not be less than the value specified in Table 5. For the multi-layer winding drum, the end should have a flange that is 2 times the diameter of the wire rope than the outermost wire rope. | ||
| 50 | Roll defect | 5.9.2 | There should be no cracks or excessive wear on the drum wall. | ||
| 51 | Working condition of rope guide | 5.10 | The rope guide should be roped effectively within the working range, and there should be no defects such as jamming and missing parts. | ||
| 52 | Chain condition | 5.11 | The link chain should not have defects such as cracks, open welding, etc., and the diameter of the chain link should be scrapped if the wear amount reaches 10% of the original diameter. | ||
| 53 | 6. Electrical | Electrical equipment and electrical components | 6.1.1 | The components should be complete and complete; the mechanical fixing should be firm without looseness; the transmission part should be flexible and free from jamming; the insulating material should be good, without damage or deterioration; the electrical connection of bolts, contacts, brushes and other connecting parts should be reliable and non-contact bad. The electrical equipment and electrical components selected on the crane should be compatible with the power supply, working environment, and electrical equipment and electrical components used under working conditions. The design and selection should meet the corresponding requirements. | |
| Serial number | Test items | Item Number | Inspection content and requirements | results of testing | |
| 54 | 6.
電 Gas |
Feeder | 6.1.2 | a. In addition to the red safety color (except for the conductive contact surface), the naked sliding wire of the cart power supply should be installed in the set position with a safety sign or an indicator light indicating that it is live; in addition to the red safety color according to 2.3 (except for the conductive contact surface); | |
| b. The current collector should be reliably contacted along the entire length of the slide line; | |||||
| c. The mobile flexible cable should have appropriate retracting and unwinding measures. | |||||
| 55 | Line insulation resistance | 6.2 | When the rated voltage is not greater than 500V, the insulation resistance of the electrical circuit to the ground is not less than 0.8 MΩ in a general environment, and not less than 0.4 MΩ in a humid environment. | ||
| 56 | Main power switch | 6.3※ | The crane power supply should be equipped with a master power switch, which should be located near the crane and easily operated by ground personnel, and the outlet end of the switch should not be connected to electrical equipment that is not related to the crane. | ||
| 57 | Electrical isolation device | 6.4.1 | The low-voltage main power circuit on the crane should be equipped with a main isolation switch or other electrical isolation device that can cut off all power sources. When there is no main isolation switch or other electrical isolation device on the crane, the main power switch should have an isolation effect. | ||
| 58 | Short circuit protection of the main power circuit | 6.4.2※ | The total power circuit of the crane shall have at least one level of short-circuit protection. Short-circuit protection should be realized by automatic circuit breakers or fuses. Each phase of the automatic circuit breaker shall have an instantaneous overcurrent release, and its setting value shall be determined by the type of the automatic switch. The rated current of the fuse melt should be selected according to 1/2-1/1.6 of the peak current of the crane. | ||
| 59 | Loss of pressure protection | 6.4.3 | The main power supply on the crane shall be protected against voltage loss. When the power supply is interrupted, the main power circuit must be able to be disconnected. When the power supply is restored, the main power circuit cannot be automatically connected without manual operation. | ||
| 60 | Zero protection | 6.4.4※ | The crane must be equipped with zero position protection (except for the operation of the mechanism using button control). When starting operation and restoring power supply after loss of voltage, the controller handle must be set to the zero position before the motors of the mechanism or all mechanisms can be started. | ||
| 61 | Overcurrent protection | 6.4.5 | Each mechanism on the crane should be individually set with overcurrent protection. AC wound asynchronous motors can use overcurrent relays or automatic circuit breakers with thermal releases for overload protection. When using an overcurrent relay to protect a wound asynchronous motor, the setting value of the overcurrent relay set in the two phases should not be greater than 2.5 times the rated current of the motor. The setting value of the total overcurrent relay in the third phase should not be greater than 2.25 times the rated current of the motor plus the sum of the rated currents of the motors of the other mechanisms. The setting value of the thermal relay of the protective cage AC motor should not be greater than 1.1 times the rated current of the motor. |
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| Serial number | Test items | 項目 number |
Inspection content and requirements | results of testing | |
| 62 | 6.
電 Gas |
Overspeed protection | 6.4.6 | The main hoisting mechanism of casting and quenching cranes shall use thyristor stator voltage regulation, eddy current brake, energy consumption braking, thyristor power supply, DC unit power supply speed regulation, and other hoisting mechanisms that may cause overspeed due to speed regulation. There are overspeed protection measures. | |
| 63 | Lifting electromagnet | 6.4.7 | The AC side power cord of the electromagnetic lifting electromagnet should be connected from the inlet end of the main power contactor to ensure that when the main power contactor cuts off the main power supply due to various reasons inside the crane, the lifting electromagnet will not be energized. Where a sudden loss of power may cause an accident, the electromagnetic lifting electromagnet can be equipped with a backup power supply. | ||
| 64 | Portable control device | 6.4.8 | When using a portable control station or flashlight door control, an emergency power-off switch meeting the requirements of Item 7.9 should be installed on the button panel; a supporting wire rope should be installed on the control cable of the button panel; the power supply of the button panel must use safe extra-low voltage; button function Effective; the button panel should generally adopt an insulating shell; the shell should be sturdy and should not be damaged by normal unintentional collisions. | ||
| 65 | illumination | 6.5 | The driver’s cab, passage, electrical room, and machine room of the crane should have proper lighting. When the power supply is cut off, the lighting power supply cannot lose power. When lighting the work surface on the crane, anti-vibration measures should be considered. The power supply voltage of the fixed lighting device shall not exceed 220V. When there is no dedicated working neutral line, the 220V AC power supply for lighting should be obtained from the isolation transformer. It is strictly forbidden to use metal structure as the loop of the lighting circuit (except for the system with a single battery power supply and the voltage does not exceed 24V). The power supply voltage of the portable lighting device should not exceed 36V, the AC power supply should use a safety isolation transformer, and it is forbidden to use a self-coupling transformer to supply power directly. | ||
| 66 | signal | 6.6 | The status of the main power switch of the crane should be clearly indicated in the driver's cabin. The crane (except the flashlight door control) should be equipped with warning sound signals, and should be clearly heard within the crane working site. | ||
| 67 | Grounding of electrical equipment | 6.7.1 | The metal structure of the whole machine is allowed to be used as the grounding trunk line on the crane, and the metal structure must be a conductive whole with reliable electrical connection. If the metal structure is connected with a non-welded part, another grounding trunk or jumper should be provided. All the normally non-charged metal shells, transformer cores and metal isolation layers, stringing metal ducts, and cable metal sheaths of all electrical equipment on the crane should have a reliable grounding connection with the metal structure. | ||
| 68 | Grounding of metal structures | 6.7.2※ | When the crane power supply is a low-voltage system with a neutral point directly grounded, the grounding type of the overall metal structure should be a TN or TT grounding system. The grounding resistance of the repeated non-grounding of the neutral line is not more than 4Ω; the repeated grounding of the neutral line is not more than 10Ω. When using the TT grounding system, the product of the grounding resistance of the crane metal structure and the operating current of the leakage protector should not be greater than 50V. | ||
| Serial number | Test items | 項目 number |
Inspection content and requirements | results of testing | |
| 69 | 7.
Security whole apparatus is set と the anti- protection measures applied |
高さ制限 | 7.1※ | The lifting mechanism should be equipped with lifting height limiters, and the lifting mechanism for lifting hot metal should be equipped with two sets of height limiters. The two sets of switch actions should be sequential, and different circuit breakers should be controlled and different structures should be used as much as possible Type, reliable and effective function. | |
| 70 | Stroke limiter | 7.2 | The large and trolley operating mechanisms should be equipped with stroke limiters (except for the electric hoist single beam, the trolley suspended from the crane and the manual crane operating mechanism), which is reliable and effective. | ||
| 71 | 持ち上げ重量制限 | 7.3 | Except for dedicated maintenance cranes, cranes with a rated lifting capacity greater than 20t and portal cranes greater than 10t should be equipped with lifting capacity limiters. When the load reaches 90% of the rated load, an alarm shall be issued; when the load exceeds the rated load but not more than 110% of the rated load, the power shall be cut off. | ||
| 72 | Windproof device | 7.4※ | Cranes working in the open air should be equipped with wind-proof devices such as rail clamps, anchoring devices or iron shoes. There are no defects in its parts, and independent work is effective. | ||
| 73 | Buffer and end stop | 7.5 | Buffers or end stops should be provided for the large and trolley running mechanisms or the rail ends respectively, and the buffer should be well connected to the end stop or the buffer of another crane running mechanism. The end stop should be firmly fixed, and both sides should be in contact with the buffer at the same time. | ||
| 74 | Sweeper plate | 7.6 | When the truck track is set on the working surface or the ground, the crane should be equipped with a rail sweeping plate; the distance between the rail sweeping plate and the track should be no more than 10mm. | ||
| 75 | Anti-tip safety hook | 7.7 | A single-girder crane with a hook drop on one side of the main girder shall be equipped with an anti-tipping safety hook. When the trolley runs normally, it should be ensured that the clearance between the safety hook and the main beam is reasonable, and there is no jamming in operation. | ||
| 76 | Overhaul the cage | 7.8 | For cranes powered by bare slide lines, a fixed and reliable maintenance crane should be installed on the side close to the slide line or provide convenient and safe facilities for the maintenance of the slide line. | ||
| 77 | 緊急時の電源オフスイッチ | 7.9※ | The crane must be equipped with an emergency power-off switch. In an emergency, it should be able to cut off the main power supply of the crane. The emergency power-off switch should not be automatically reset, and should be located in a place that is convenient for the driver to operate. | ||
| 78 | Channel port interlock protection | 7.10 | The door into the crane and the door from the driver's cab to the bridge frame must be equipped with electrical interlocking protection devices. When any door is opened, all the mechanisms of the crane should not work. | ||
| 79 | Sliding line protection board | 7.11 | Where the operator or the spreader is easy to touch the sliding line, the conductive sliding line protection plate should be installed. | ||
| 80 | protecting mask | 7.12 | The movable parts exposed on the crane that may hurt people should be equipped with protective covers. The electrical equipment of the crane operating in the open air should be equipped with a rain cover. | ||
| Serial number | Test items | 項目 number |
Inspection content and requirements | results of testing | |
| 81 | 8.
Test test |
No-load test | 8.1 | Various safety devices work reliably and effectively; each mechanism operates normally and brakes are reliable; the control system and electrical control system work normally; large and small cars run along the full length of the track without gnawing. | |
| 82 | Rated load test | 8.2※ | Each mechanism operates normally, without gnawing or three legs. The static rigidity requirements are as follows: for A 4- A 3 grade not greater than S/700; for A 4- A 6 grade not greater than S/800, for A 7 grade not greater than S/1000; cantilever end not greater than L 1 /350 or L 2 /350. After the test, the crane should be inspected for cracks, loose connections, damaged parts and other defects that affect the performance and safety of the crane. | ||
| 83 | Static load test | 8.3※ | Newly installed, overhauled, and modified cranes should undergo this test. Lift the rated load, 100-200mm from the ground, and gradually load to 1.25 times the rated load. Hang in the air for no less than 10 minutes. After unloading, check the permanent deformation. After repeating 3 times, there should be no permanent deformation. At this time, the camber of the main beam is not less than 0.7S/1000 (electric single beam, suspension crane is not less than 0.8S/1000), and the cantilever end is not less than 0.7L 1 /350 or 0.7L 2 /350. The crane should not have cracks, loose connections, damaged parts and other defects that affect the performance and safety of the crane. | ||
| 84 | Dynamic load test | 8.4 | Newly installed, overhauled, and modified cranes should undergo this test. Lift 1.1 times the rated load, and carry out individual and linkage tests of lifting, braking, and operation of large and small cars in accordance with the working cycle and the allowable connection duration of the motor, and the duration is not less than 1 hour. The structure and mechanism of the crane should not be damaged, and the connection should not be loosened. | ||
Attached table: original record of camber inspection
| メインビーム | Measuring point | 1 | 2 | 3 | 4 | 5 | ||
| Test data | L1 | |||||||
| L2 | ||||||||
| Calculation results | ||||||||
| Calculation results | ||||||||
| Cantilever beam | Measuring point | 1 | 2 | |||||
| Test data | L1 | |||||||
| L2 | ||||||||
| Calculation results | ||||||||
| Schematic diagram of detection location |    |
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