What are the inspection items of the periodic self-inspection report of the bridge gantry crane

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In order to ensure the safe use of bridge gantry cranes, relevant national departments stipulate that bridge gantry cranes of more than 3 tons must be submitted for inspection on a regular basis . The inspection unit must do a good job in the regular self-inspection of the crane. The editor will share with you what items need to be inspected in the regular (first) inspection report of the crane.

1. Technical data review

Periodic inspection report and use registration certificate, use record

2. Working environment and appearance inspection

2.1 Lifting weight or lifting moment mark
2.2 Safety distance
2.3 Crane running track

3. Metal structure inspection: main structural parts under force

4. Inspection of main parts

4.1 General requirements (wear, deformation, defects, certification documents, etc.)
4.2 Spreader
- 4.2.1 Hanging of the spreader
- 4.2.2 Anti-decoupling device of thehook Grinding protection saddle
4.3 Wire rope
- 4.3.1 Wire rope configuration
- 4.3.2 Wire rope fixation
- 4.3.3 Scrap of wire rope for special occasions
- (1) Number of broken wires in wire rope for hoisting machinery for lifting hot metal, molten metal or dangerous goods
- (2) Explosion-proof crane wire rope broken wire
- 4.3.4 Main hoisting mechanism (except electric hoist) of the crane for lifting molten metal wire rope system
- 4.3.4.1 Main hoisting mechanism wire rope winding system
- 4.3.4.2 Main hoisting mechanism wire rope
4.4 Guide Rope device
4.5
Landing door 4.5.1 Simple lift
4.5.2 Special car lift parking equipment

5. Safety protection and protection device inspection

5.1 Brake
- 5.1.1 Brake setting and control
- 5.1.2 Special requirements for the installation of brakes for lifting molten metal cranes
- 5.1.3 Inspection of brake parts
  - (1) The brake parts are free of defects such as cracks, excessive wear, plastic deformation, missing parts, etc., hydraulic brake oil leakage phenomenon
  - (2) brake wheel and Friction plate friction, defects and oil pollution
  - (3) There is no oil leakage in the brake pusher
5.2 Lifting height (descent depth) limiter
5.3 Running stroke limiter
5.4 Lifting weight limiter
- 5.4.1 Setting
- 5.4.2 Special items for first inspection Requirement
- 5.4.3 Special requirements for periodic inspection
5.5 Lifting moment limiter
- 5.5.1 Setting
- 5.5.2 Special requirements for first inspection
- 5.5.3 Special requirements for periodic inspection
5.6 Anti-wind and anti-skid device
- (1) Anti-wind and anti-skid device
- (2) Action test
- (3) No defects in parts
5.7 Anti-collision device
5.8 Alarm device
5.9 Buffer and end stop
5.10 Tight (should) emergency stop switch
5.11 Track cleaner
5.12 Interlock protection device
5.13 Anemometer
5.14 Protective cover, protective fence, heat insulation Device
5.15 Device for preventing the boom from tipping backward
5.16 Cable drum terminal limit device
5.17 Rotation limit device
5.18 Amplitude limiter
5.19 Amplitude indicator
5.20 Limit moment limit device
5.21 Level gauge
5.22 Special protection device for container spreaders
5.23 Special safety protection and protection device for gantry crane
- 5.23.1 Anti-tip safety hook
- 5.23.2 Deflection display (limit) device
- 5.23.3 Safety protection of conductive sliding contact line
5.24 Tower crane special safety protection and protection device
- 5.24.1 Anti-trolley fall protection
- 5.24.2 Forced speed change device
5.25 Mobile crane special safety protection and protection device
- 5.25.1 Outrigger retraction locking device (Except for railway cranes)
- 5.25.2 Slewing locking device
- 5.25.3 Special safety protection and protective device for railway cranes
  - (1) Outrigger retracting locking device
  - (2) Limiting protection device for the turning angle of the boarding car along the track
  - (3) Getting on the car Centering device, return anti-sway device between getting on and off
  - (4) hydraulic oil filter blockage alarm device
  - (5) getting off omnidirectional level gauge
  - (6) traveling gear safety device
5.26 special safety protection and protective device for elevator (except simple elevator )
- (1) Anti-fall safety device
- (2) Mechanical lock hook and electrical safety device of fence boarding gate
- (3) Mechanical lock hook and electrical safety device of cage door
- (4) Limit device (switch)
- (5) Limit switch
- ( 6) Safety hook
- (7) Buffer
- (8) Wire rope slack prevention device
- (9) Fall prevention device
- (10) Rope break protection device
- (11) Overload protection device
- (12) Interlock protection device for passageway, cargo compartment door, landing door
- (13) Emergency exit door safety Switch
5.27 Special safety protection and protection device for simple lift
- 5.27.1 Floor stop protection device
- 5.27.2 Downstream overspeed protection device
- 5.27.3 Anti-running obstruction protection device
- 5.27.4 Limit device (switch)
- 5.27.5 Limit switch
- 5.27.6 Buffer is
- 5.27.7 stop means
- 5.27.8 maintenance operation apparatus
- 5.27.9 limiting or shut off the hydraulic line means
- 5.27.10 overload protection device
- 5.27.11 machinery guards
5.28 mechanical parking special security guards and
- 5.28. 1 Tight (should) emergency stop switch
- 5.28.2 Device for preventing overrun
- 5.28.3 Vehicle length, width, and height restriction device
- 5.28.4 Vehicle stop device
- 5.28.5 Person and vehicle erroneous entry detection device
- 5.28.6 Car board Vehicle position detection device
- 5.28.7 Interlocking protection device for entrance and exit doors and fence doors
- 5.28.8 Automatic door anti-pinch device
- 5.28.9 Anti-overlap automatic detection device
- 5.28.10 Anti-load vehicle board falling device
- 5.28.11 Warning device
- 5.28.12 Track end stop device
- 5.28.13 Buffer
- 5.28.14 Loose rope (chain) detection device or car board tilt detection device
- 5.28.15 Operation restriction device
- 5.28.16 Control interlock function
- 5.28 .17 Car board locking device
5.29 Special safety protection and protective device for car-specific elevator parking equipment
- 5.29.1 Guidance stroke
- 5.29.2 Tight pit (should) Emergency stop switch and power socket
- 5.29.3 Overload limiter
- 5.29.4 Power outage A device that makes the elevator move slowly to a safe position at a time (passenger-vehicle sharing type)
- 5.29.5 Ventilation device (passenger-vehicle sharing type)
- 5.29.6 Emergency contact device (passenger-vehicle sharing type)
- 5.29.7 Emergency rescue device (Passenger- car sharing type) 5.29.8 Safety gear and speed limiter

6. Hydraulic system inspection

(1 ) Balance valve and hydraulic lock are connected with the actuator
(2) There is no oil leakage in the hydraulic circuit
(3) Hydraulic cylinder safety limit device , Explosion-proof valve (stop valve)
(4) There is no oil leakage in the luffing cylinder and vertical outrigger cylinder of mobile cranes.

7. Cabin inspection

(1) Fire extinguisher, floor covering material, signs
(2) Fixed firmly without obvious Defects, the driver’s cab working in the open air has protective devices

8. Electrical inspection

8.1 Electrical equipment
- (1) The electrical equipment functions are effective
- (2) Explosion-proof, insulated, lifting machinery and electrical equipment and components for lifting molten metals
8.2 Protection of electric motors
8.3 Line protection
8.4 Phase and phase loss protection
8.5 Zero protection (The operation of the mechanism is controlled by an automatic reset button (Except)
8.6 Loss of voltage protection
8.7 Motor stator abnormal power loss protection
8.8 Overspeed protection device
8.9 Lifting machinery grounding
- 8.9.1 Electrical equipment grounding
  - (1) Electrical equipment grounding
  - (2) Shell, metal conduit, metal bracket and metal wire slot grounding
- 8.9.2 Metal structure grounding
  - 8.9.2.1 Grounding wire
  - 8.9.2.2 Grounding resistance
8.10 Insulation resistance of electrical circuits to ground
- (1) Insulation resistance of rated voltage not greater than 500V (or insulation resistance of explosion-proof crane, MΩ)
- (2) Insulated lifting Mechanical insulation resistance (MΩ)
8.11 Lighting
- (1) Movable lighting safety voltage (V)
- (2) Metal structure is prohibited as a circuit for lighting circuits
8.12 Signal indication
- (1) Signal indication of the state of the main power switch
- (2) Warning sound Signal
- (3) Special container spreader opening and closing indicator light

9. Large crane safety monitoring and management system inspection

9.1 Hardware configuration required by safety monitoring management functions
9.2 Management authority setting
9.3 Fault self-diagnosis
9.4 Alarm device
9.5 Text expression
9.6 Openness of communication protocol
9.7 Clarity of displayed information
9.8 System information collection source
9.9 Monitoring parameter verification
- 9.9.1 Lifting weight
- 9.9.2 Lifting torque
- 9.9.3 Lifting height (descent depth)
- 9.9 .4 Running stroke
- 9.9.5 Wind speed
- 9.9.6 Rotation angle
- 9.9.7 Amplitude
- 9.9.8 Crane running deflection
- 9.9.9 Levelness
- 9.9.10 Safety distance of the same or different track operating mechanism
- 9.9.11 Operation instruction
- 9.9.12 Verticality of outriggers
- 9.9.13 Working time
- 9.9.14 Accumulated working time
- 9.9.15 Each working cycle
9.10 Monitoring status verification
- 9.10.1 Braking status of lifting mechanism
- 9.10.2 Wind and anti-skid status
- 9.10.3 Interlock protection ( Door interlock and operation interlock between mechanisms)
- 9.10.4 Working condition setting state
- 9.10.5 Power supply cable drum state
- 9.10.6 Via hole state
- 9.10.7 Video system
9.11 System comprehensive error test
- 9.11.1 Overall error of lifting weight
- 9.11.2 Amplitude combined error
- 9.11.3 Comprehensive error of lifting moment
9.12 Continuous operation test
9.13 Information collection and storage verification
- 9.13.1 Real-time
- 9.13.2 Scan period
- 9.13.3 Storage time
- 9.13.4 Storage of information after power failure
- 9.13.5 Historical traceability

10. Performance test

10.1 No-load test
- (1) Running and braking conditions
- (2) Operating conditions of the control system and electrical control system
- (3) Running along the full length of the track without rail gnawing
- (4) Operating conditions of various safety protection and protective devices
10.2 Bridge erecting machine through-hole test
- 10.2.1 Through-hole travel test
- 10.2.2 Guide beam mid-span static deflection test
- 10.2.3 Cantilever deflection test

11. First inspection additional inspection items

11.1 Product technical documents
- (1) Hoisting machinery design documents
- (2) ) Product technical information, safety protection device and electric hoist type test certificate, etc.
11.2 Working environment of lifting machinery and crane appearance
11.3 Performance test
- 11.3.1 Rated load test
- 11.3.2 Static load test
- 11.3.3 Dynamic load test
- 11.3.4 Flow Sealing performance test of hydraulic system of mobile crane