What are the elevator maintenance processes?

Elevator maintenance. take

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Pay attention to the problem. Mechanical parts:

1 The traction machine of the elevator needs oil lubrication. There are two scales on the outer cover of the traction machine, open the grease nozzle to see that the oil should be in the middle of the two scales, if the oil is lower than the scale below, it means that the traction machine should be refueled, if you do not refuel, the elevator will not be well lubricated for a long time, which will lead to the burning of the elevator traction machine and the motor. After the elevator runs for a long time, the oil should be changed in time, so that the traction machine always keeps fresh and good lubrication.

2. Cleaning and lubrication of elevator car guide shoes. We all know that the guide shoe runs on the guide rail, and there is an oil cup on the guide shoe, so that the elevator does not produce friction sound in operation, it is necessary to regularly refuel the oil cup and clean the guide shoe, and the hygiene of the car should be cleaned.

3. Maintenance of elevator hall doors and car doors. Elevator failures are generally mostly on the elevator hall door and car door, so attention should be paid to the maintenance of the hall door and car door. First, the upper sill of the door should be refueled in the place to refuel, keep good lubrication, the elevator will not make unpleasant sounds in operation and the opening of the door.

Pay attention to the inspection of the elevator safety touch plate or light curtain type touch plate switch line, because the frequency of the elevator door opening and closing is higher, which will damage the switch line, which requires the maintenance personnel to check in each work, and the replacement should be changed in advance, so as not to let users doubt the quality of the elevator product due to the problem of the door.

Electrical components: electrical components are roughly divided into control panels, electrical switches of each safety loop, etc., it is the brain of the elevator, is the central nervous system of the elevator, the start, operation and door switch of the elevator are dominated by it, so it must be treated as a priority in the daily maintenance work. It is best not to short-circuit the elevator circuit in the control screen during work.

When the elevator door system fails, someone shorts the elevator door for convenience, so as to find the fault, which is very dangerous, and the short-circuit door has the most accidents. Why? If a person opens the hall door and stretches his head inside, the elevator happens to run up or down here, and the hall door is shorted to the elevator and cannot stop, so the accident is very likely to happen.

Therefore, we must not short-circuit the safety circuit in our daily maintenance work, if we must short-circuit, we must find out which safety component has a problem, which safety component needs to be short-circuited, and after maintenance or emergency repair, we must remove the short-circuit in time.

According to TSG T5001 2009 elevator use management and maintenance rules.

Daily maintenance items of passenger elevators and freight elevators: 28 items in half a month; There are 41 quarterly insurance projects; There are 55 semi-annual insurance projects; There are 71 annual maintenances.

Hydraulic elevator daily maintenance items: 29 items in half a month; There are 42 quarterly insurance projects; There are 51 semi-annual guarantee projects; There are 65 annual maintenances.

Daily maintenance of sundries elevators: 20 items in half a month; There are 28 quarterly insurance projects; There are 38 semi-annual guarantee projects; There are 52 annual maintenances.

Escalators and moving walks daily maintenance items: 31 items in half a month; There are 36 quarterly insurance projects; There are 47 semi-annual guarantee projects; There are 60 items of annual maintenance.

The specific content is in the annex of the elevator use management and maintenance rules.

Elevator switch maintenance precautions.

1 The traction machine of the elevator needs oil lubrication.

When maintaining the elevator, if its grease nipple capacity is lower than the scale mark, lubricating oil must be added immediately. If this problem is not solved in time, the elevator will be burned due to friction, so special attention must be paid to it.

2. Cleaning and lubrication of elevator car guide shoes.

The guide shoe is operated on the elevator rail, and it also has an oil cup on it, so it must be checked for oil during maintenance, and if the oil is below the scale mark, it must be refueled in time. In addition, the guide shoes must be cleaned so that they can be easily used.

3. Maintenance of elevator hall doors and car doors.

When maintaining the elevator, the maintenance of the hall door and the car door is also a key point to pay attention to. Most of the reasons why elevators break down are because of hall doors and car doors, so we should pay attention to their maintenance. They must be kept lubricated so that they will be smoother to use.

Dynamic disinfection is sterilization and disinfection when there are people. On many occasions, it is required to protect against microbial contamination in an all-round and whole-process manner for production, testing, and personnel on site. Sterilization, disinfection, or removal of microbial activity, is an important means of controlling microbial contamination.

Common indoor disinfection methods include physical, chemical, biological and other methods. The commonly used disinfection method of chemical agents has a certain toxicity due to the chemical agent itself.

The elevator maintenance rules are as follows:

1 Purpose. Standardize elevator maintenance procedures to ensure the safe operation of elevators.

2. Scope of application.

It is suitable for the maintenance of elevators within the scope of the company's management.

3. Responsibility. The engineering department is responsible for supervising and inspecting the maintenance of elevators in the community.

The supervisor of the maintenance team is responsible for the maintenance of the elevator in the community.

The elevator tool mechanism is responsible for the maintenance of the elevator.

4. Operational specifications.

The elevator operator should inspect the elevator once a day and record the inspection situation in the "Elevator Daily Inspection Item List".

The contents of the inspection are as follows:

Check whether the elevator floor indicator light is consistent with the actual position of the car (inspection method: observation).

Check whether the hall door button and button light are normal; whether the door is tightly sealed when closed; Whether the elevator reaches the flat floor smoothly, whether the error between the hall door sill and the car sill meets the required standards (horizontal distance deviation is less than 3mm, distance clearance is less than 35mm), and whether it affects the entry and exit of guests (inspection method: observation; ruler).

Check all ancillary features (floor lights, fans, lighting, alarm bells, **, door opening and closing buttons, etc.). ) are normal in the car (inspection method: observation; one after the other).

Check the computer room for abnormal sounds and odors; Whether the temperature of the computer room is suitable (turn on the air conditioner when the temperature of the computer room exceeds 35 degrees), and whether there is water leakage or water ingress; whether the doors and windows are closed, etc. (Inspection method: observation; thermometer).

Elevator inspection. Check the elevator from the following three aspects:

a) Whether the elevator starts smoothly and whether there is an obvious sense of floating;

b) Whether the running speed is constant and whether there is vibration during operation;

c) Whether there is obvious pressure when decelerating and stopping the floor (inspection method: take the elevator from the first floor to the top floor);

d) Clean the elevator machine room once a week, clean the ground and wipe the surface of the control cabinet and the host with a dry rag, so that the ground is free of dust and the surface of the control cabinet and the host is free of stains.

Elevator maintenance work 1, lubrication maintenance work.

Traction wire rope is an important part of the elevator components, it is a device that provides suspension for the elevator, bears the full weight of the elevator and passengers, and the lifting of the elevator car is also driven by the friction of the traction wire rope on the wheel groove. Therefore, once the traction wire rope is damaged, it will be related to the safety of people's lives and property, and it needs to be regularly inspected and maintained, lubricated and maintained.

2. Non-destructive testing of elevator maintenance work.

When the wire rope is put into use, its performance and life begin to decline gradually, so it must be regularly inspected and monitored in real time according to the regulations, which is mainly divided into two parts: external inspection and internal inspection. The external inspection can monitor whether the surface has defects such as corrosion, deformation, wear and fracture exceeding the standard, and the internal inspection can be carried out by radiation, acoustics, mechanical, ultrasonic, eddy current, vibration and other methods.

3. Elevator maintenance work, steel wire lubrication.

Lubricate and clean the wire rope within a certain period of time to ensure that its service life is short, especially the traction wire rope often has a layer of oil on the surface, which is caused by the mixing of the lubricating oil rock wheel with dust, if it is not removed, it will affect the service life, and it will also change the coarse signaling friction coefficient to reduce the traction capacity. Wire lubrication also has functions such as anti-corrosion protection and reduced wear.

Machine room elevator maintenance cycle:

1. Inspect the operation of the unit equipment (vibration, abnormal sound, abnormal temperature, oil leakage of the main engine);

2. Dust removal inside the control panel, main contactor, relay action, wiring inspection and inspection of environmental sanitation and auxiliary equipment in the computer room (such as exhaust and air conditioning);

3. Holding brake inspection (stroke and action flexibility);

5. Lubrication of moving parts of the speed limiter;

Answer: The maintenance of the elevator can be divided into one-year maintenance, half-year maintenance, monthly maintenance, and weekly maintenance.

Basic requirements for elevator weekly maintenance:

1.The elevator is required to be maintained once a week, and the time is not less than two hours, and the maintenance personnel are required to maintain the person, time and elevator.

2.The following parts of the elevator should be inspected to ensure that it.

Working, clean, lubricated.

Power switch, safety switch.

The electrical components of the control cabinet main switch and limit switch are complete and undamaged, and the wiring is firm.

Check the contact between the fuse and the fuse, the contact is firm, and there should be no ignition.

Safety switches such as emergency stop, safety window, bottom of well, and limit should be in good contact, and the action should be normal and reliable. No jumping.

Traction machine: The appearance of the body should be clean and bright.

Reducer. a.The operation should be smooth and free of abnormal vibration.

b.The height of the oil level of the gearbox should be kept within the specified oil level line.

c.The oil temperature of the reducer does not exceed 85;

Motor. a.There should be no friction sound, collision sound or other noise in the operation of the motor, and if there is any abnormal sound, the ladder should be stopped to check whether there is a foreign object invading the sliding bearing, and whether the bearing is damaged.

b.The motor oil level should be near the center of the oil mirror.

c.The ambient temperature of the motor should not be higher than 40 when used, and the temperature rise should not be higher than the nameplate specified.

d.The channeling of the motor bearing is not more than 4mm

Brake. The action is stable and reliable, no slippage, and the contact surface of the brake shoe is not less than 70%.