The specific maintenance and operation contents and technical specifications should refer to the technical requirements of each elevator manufacturer.
(1) Maintenance of the traction machine Because of the gearless traction machine using a permanent magnet motor, some special tools and instruments are required for maintenance. The brake is embedded in the casing of the traction machine and directly acts on the rotor mechanism of the motor. It is the most important device for the safe operation of the elevator. The adjustment of the core stroke and the adjustment of the stroke of the brake lining need to use the lever type. Precision instruments such as sub-meters and feeler gauges are used for precise setting. The gearless structure connects the traction sheave with the motor rotor structure, and the traction wheel wear procedure and the operation of the coupling bearing directly affect the comfort of the elevator running. Therefore, the traction sheave must be inspected regularly and the bearings are regularly lubricated with grease. Since there is no working room on the machine room and limited by the position of the traction sheave, it is difficult to measure the wear degree according to the traditional method. This requires the use of gauges specially made for the corresponding specifications of the wheel groove to accurately determine the current status of the traction wheel groove. If it is necessary to disassemble and replace the traction machine, it is necessary to securely fix the car near the top of the hoistway, and use the car top as the working platform. After installing the load-bearing beam and lifting equipment at the top of the hoistway, the hoisting machine can be disassembled and assembled. After the maintenance and repair work of the traction machine, care should be taken not to omit the tools, spare parts and other items in the hoistway (such as the bracket) to prevent accidental damage after falling.
(2) Maintenance of control cabinets The control cabinets of the machine room-less elevators are generally installed in the hoistway. Once the elevator components or circuit wiring are damaged, the maintenance and replacement operations will be more difficult. Therefore, the daily maintenance is more than the installation in the engine room. The control cabinet unit inside is more demanding. Connectors, terminals and circuit breakers, fuse protectors, etc. should be checked frequently to prevent accidental failures as much as possible. The arrangement and connection of the wires and cables entering and exiting the control cabinet are required to be standardized and reliably fixed, so as to avoid the occurrence of a cracking failure due to the collision with the running parts such as the car. Since there is no manual mechanical release condition for the machine-roomless elevator, there must be an emergency release system when a trapped person fails. Taking the Mitsubishi ELENESSA elevator as an example, it is possible to implement a relief operation outside the landing without the user's external power supply. The reliability of the electrical circuit of the rescue operating device should be fully guaranteed. In the daily maintenance and repair work, the charge and discharge of the power supply (ie, the battery) in the circuit and the continuity of the line must be confirmed. After the control cabinet is overhauled, make sure that the cover is reliably closed and fixed. Also, be careful not to leave tools, spare parts and other items missing in the hoistway.
(3) Troubleshooting by using equipment outside the hoistway The search and judgment of elevator faults usually need to be carried out in the control cabinet, because the control cabinet is the central mechanism that controls the various operating states of the elevator, collects data information and sends commands. In general, various operating voltages, circuit configurations, status displays, etc. that drive, control, and manage elevator operation can be inspected in the control cabinet. For the failure of the machine roomless elevator, sometimes it is impossible or difficult to directly access the control cabinet device. Therefore, the general machine room product will provide some fault diagnosis and emergency treatment methods in the equipment outside the hoistway, such as the landing maintenance panel or remote monitoring. Equipment, etc. In addition, through the landing access panel viewing window, it is also possible to confirm the car position and status during emergency troubleshooting. The maintenance work of the machine room-less elevator requires skilled use of these equipment functions to perform the troubleshooting operation accurately, efficiently and safely. In summary, the maintenance and repair work of the machine room-less elevator is quite different from the traditional machine room-type elevator. Regular maintenance of the elevator will help to ensure the safety of the elevator ride, improve the comfort of the elevator ride and the satisfaction of the passengers, and extend the service life of the elevator equipment. Most of the maintenance and repair work of the machine room elevator requires the operator. Have professional knowledge and experience in installing elevators. Unqualified personnel engaged in maintenance work will bring great danger to passengers or other related personnel, and will also cause abnormal damage to the elevator equipment and affect the performance of the elevator.
The role of Bushing Cover : is the use of non-conductive material will be charged with isolation or wrapped up the characteristics of a safety measure to prevent electric shock. Good insulation to ensure the safe operation of electrical equipment and lines.
Applications:
1. Busbar Insulation Cover can Effectively eliminate short circuit accidents caused by small animals such as birds and animals or foreign body lap.
2. Prevent electrical accidents caused by condensation flash branding, dirty flash branding and icicle sticking to snow.
3. Bushing Covers can prevent acid rain, salt spray and harmful chemical gases from corrosion of transformer inlet and outlet lines.
4. Avoid casualties caused by pedestrians touching exposed electrical contacts by mistake.
5. The protective cover and metering device can be fully closed operation to prevent illegal elements stealing electricity.
6. Buckle structure, simple installation, reusable.
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