How to perform daily maintenance on a three-dimensional parking garage
Release Time:
2019-07-03
Regular maintenance of a three-dimensional car park is essential to ensure its safe operation and plays a vital role in parking safety.
Regular maintenance of a three-dimensional parking garage is essential for its safe operation. How can we ensure proper daily maintenance? Here are some key points:
1. Maintenance Frequency
Maintenance personnel are responsible for regularly inspecting and maintaining parking equipment. This can be categorized as follows:
Weekly maintenance: Weekly inspections, cleaning, lubrication, and adjustments should be performed on the parking equipment's operating environment, metal structure, transmission system, electrical equipment, and safety devices. Particular attention should be paid to the operating condition of safety devices, addressing any issues promptly.
Monthly maintenance: Monthly inspections, cleaning, lubrication, and adjustments should be performed on the transmission components, electrical control system, and safety devices of the parking equipment.
Quarterly maintenance: Every quarter, inspections and maintenance should be performed on the main load-bearing components and their connections, safety devices, equipment appearance, safety signs, and warnings. Functional testing of the electrical control system may be necessary.
Annual maintenance: An annual comprehensive and systematic inspection and maintenance of the parking equipment should be conducted, including electrical grounding and insulation testing.
2. Maintenance Content and Technical Requirements
2.1 Metal Structure
2.1.1 The metal structure should be firmly and reliably connected both locally and as a whole, without permanent distortion, deformation, or weld cracks. There should be no significant deformation or unusual noise during operation under load.
2.1.2 High-strength bolted connections should be tightened to the specified tightening torque. Flat washers and spring washers should be complete, bolts should extend beyond the nuts, and the fastening should be reliable and free of looseness.
2.1.3 The verticality of the metal structure frame columns should be ≤L/1000mm (L is the length of the metal structure frame column), the parallelism between beams should be ≤15mm, and the difference in length between the two diagonals of the frame should be ≤10mm, except where special requirements apply.
2.1.4 When the handling trolley is under rated load, the downward deflection at the midpoint of its longitudinal main beam should be ≤L/400mm (L is the length of the beam).
2.1.5 The embedded bolts of the column base plate should not be loose or rusted. The foundation should be free of subsidence or cracking, and the surrounding area should be kept clean.
2.1.6 The guide rails (tracks) should be straight, free of permanent deformation, and have uniform and smooth joints without obvious bumps.
2.2 Equipment Components
2.2.1 Moving parts should operate smoothly and accurately, without unusual noise, and braking should be flexible and reliable.
2.2.2 The horizontal distance between the end of the carrier's parking surface and the ground at the entrance and exit should be ≤40mm, the vertical height difference should be ≤50mm, and the vertical height difference between the front end point and the ground surface should be ≤50mm.
2.2.3 The level error between the lifting platform car surface and the handling trolley car surface should be ≤15mm.
2.2.4 The horizontal gap between the front end point of the car plate and the ground surface should be ≤40mm, the vertical height difference should be ≤50mm, the car plate should be flat and free of permanent deformation, the welds should be free of cracks, and the connecting bolts should be free of looseness or falling off.
2.2.5 Pulleys should rotate flexibly, be well lubricated, be securely fixed, be free of cracks and damage, and be free of other defects that could damage the wire rope.
2.2.6 Wire ropes should have anti-loosening and anti-jumping devices, reliable operation, and secure fastening. Wear and tear, deformation, and broken wires should meet relevant standards.
2.2.7 The geometric center planes of the driving sprocket and the driven sprocket should coincide, and the offset should not exceed the design requirements.
2.2.8 The chain tension should be good, without rust, cracks, distortion, or looseness at the interference fit.
2.2.9 The chain and sprocket should mesh well, and the anti-derailment device should be safe and reliable.
2.2.10 The steering device should be securely fixed, rotate flexibly, be well lubricated, and be accurately positioned.
2.2.11 The motor mount should be firmly connected and free of abnormal deformation.
2.2.12 The motor should operate normally, without unusual noise or overheating.
2.2.13 The transverse frame should be firmly connected and operate without significant distortion or deformation.
2.2.14 The drive wheel should contact the guide rail (track) well, without slippage, jamming, or derailment.
2.2.15 The bolts of the coupling should not be loose or damaged; the keys of the coupling should fit tightly and should not be loose; the gear coupling and cross slide coupling should be lubricated regularly.
2.2.16 The car plate should be flat, run smoothly, brake reliably, and be accurately positioned. Adjacent car plates should remain parallel, run at the same speed, and should not collide with each other.
2.2.17 The brake friction pads should have self-compensation capability, and the wear should meet relevant standards.
2.2.18 The braking surface of the brake wheel should be free of oil stains, cracks, and defects that hinder braking performance. The brake base should be firmly connected, and the brake spring should be free of plastic deformation.
2.3 Safety Protection Devices and Requirements
2.3.1 Emergency Stop Switch
In an emergency, the emergency stop switch should quickly cut off the power supply to the main power circuit, causing the parking equipment to stop immediately, but it should not cut off the power supply to the power outlet, lighting, ventilation, fire protection, or alarm systems. The emergency stop switch should be non-automatic reset, and resetting should not trigger or restart any hazardous condition.
2.3.2 Overload Prevention Device
When the lifting limit switch malfunctions, the over-limit prevention device should stop the equipment from operating.
2.3.3 Vehicle Length, Width, and Height Limiting Device
If the vehicle size exceeds the allowable limit, the equipment must not operate and should alarm.
2.3.4 Vehicle Stop Device
A vehicle stop device should be installed where the vehicle wheels stop; its height should not be less than 25 mm and should be free of permanent deformation.
2.3.5 Vehicle and Personnel Misentry Detection Device
If other vehicles or personnel enter during equipment operation, the equipment should stop immediately.
2.3.6 Vehicle Position Detection Device
If the vehicle is not parked in the correct position on the carrier or carrier plate, the equipment should not operate.
2.3.7 Entrance and Exit Door (Gate) Interlock Protection Device
If the carrier is not in the correct position, the entrance and exit doors of the parking space should not be opened. If the door is open, the carrier should not operate.
2.3.8 Automatic Door Anti-Pinch Device
The anti-pinch device should operate safely and reliably.
2.3.9 Anti-Overlap Automatic Detection Device
The detection of parking space status (presence or absence of vehicles) should be accurate, and the operation should be safe and reliable.
2.3.10 Anti-Drop Device
After the carrier (or carrier plate) is in place, if an accident occurs, the anti-drop device must ensure that the carrier (or carrier plate) does not fall.
2.3.11 Warning Device
The warning device should function when the parking equipment is operating.
2.3.12 Track End Stop Device
The horizontal running track end stop device should be able to withstand the impact generated by the running mechanism under rated operating conditions, and should be free of permanent deformation or defects.
2.3.13 Buffer
The buffer should be intact and undamaged, safe and reliable.
2.3.14 Loose Rope (Chain) Detection Device or Carrier Plate Tilt Detection Device
If the rope (chain) becomes loose or the carrier plate tilts during the movement of the carrier plate (carrier), the equipment should stop immediately.
2.3.15 Safety Clamp
When the carrier speed reaches the speed at which the speed limiter activates, or even if the suspension device breaks, the safety clamp should be able to clamp the guide rail to brake and stop the carrier with the rated load and keep it stationary.
2.3.16 Speed Limiter
The operating point of the speed limiter should be adjusted to 115% of the rated speed.
2.3.17 Emergency Contact Device
In case of power failure, equipment malfunction, or other emergencies, it should be possible to contact the outside.
2.3.18 Operation Limiting Device
The equipment must not start until personnel have exited the equipment.
2.3.19 Control Interlock Function
When the vehicle access of the parking equipment can be controlled independently from several control points, these control points should be interlocked to ensure that operation is only possible from the selected control point.
2.3.20 Overload Limiter
When the actual load exceeds 95% of the rated load, the overload limiter should issue a warning signal; when it exceeds 100% to 110% of the rated load, the overload limiter should activate, and the power supply to the lifting structure should be automatically cut off.
2.3.21 Carrier Plate Locking Device
In case of an accident, it should prevent the carrier plate from sliding out of the parking space.
2.4 Equipment Appearance
2.4.1 Product nameplate, safety signs, and safety protection facilities are complete and undamaged.
2.4.2 Wiring and piping signs are clear, complete, and firmly installed.
The surface protection of the equipment's metal structure is intact.
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