Elevator accessories are mainly to help the elevator running accessories. The elevator accessories include elevator tension bolt, rope head bolt, rope head screw, long-distance brake release, damping pad, guide wheel, etc. they need to be matched with the elevator. The effect of each elevator accessory is different. They play different effects, but they cooperate with each other to ensure the normal operation of the electric elevator.

1、 Mechanical part:

1. Elevator car counterweight guide rail

The guide rail equipment shall be in accordance with the phase alignment between the measured values of each 5m plumb line on each working face of the guide rail Large error, car guide rail T-type counterweight guide rail with safety gear ≤ 1.2mm, T-type counterweight guide rail without safety gear ≤ 2.0mm; if the main auxiliary guide rail equipment is vertical used for a long time, the rail surface is worn deformed, resulting in the rail joint dislocation, the gap is too large, the track is adjusted maintained during long-term operation, the guide rail face is distorted, the guide rail is severe Wear, vibration noise may occur in the car.

The guide rail screw bracket is loose

Each guide rail shall have at least two guide rail supports, the spacing is generally less than equal to 2.50M (if the interval is greater than 2.50M, there should be calculation basis), the number of supports for the short guide rail at the end shall meet the planning requirements; the equipment of the support shall be solid, the welding seam of the welding support shall meet the planning requirements, the anchor bolt (such as expansion bolt) can only be used on the concrete components of the shaft wall; when the guide rail support is loose pressed, the support shall be installed on the concrete structure of the shaft wall The looseness of rail screw may cause the rail to wear more seriously during the operation of the elevator, the requirements are up to standard, resulting in vibration noise during the operation of the elevator.

3. The error of track gauge is large in the whole process

The space error of the top surface of the car guide rail is 0 - + 2 mm, the space error of the top surface of the counterweight guide rail is 0 - + 3 mm. When the guide rail spacing does meet the requirements of the specification, the horizontal shaking will increase during the operation of the elevator, then vibration noise will occur.

4. Poor damping of traction machine base

When the fixed bolt of traction machine is loose the damping ring is dropped, the fixed bolt is loose, the elevator car vibrates vibrates. One damping rubber ring is dropped, three rubber rings support the main engine on the same plane. Under the traction effect of traction machine, the elevator vibrates periodically.

5. The gap between brake shoe band brake is different

The gap on both sides of the brake car is uneven. When running, sometimes there is friction sometimes there is no friction. The worn brake shoe is uneven in the radian. Collision with brake shoe in unilateral motion without clearance will cause car vibration.

Elevator blasting

6. Internal problems of traction machine

In the reducer, the gap between worm gear worm gear is suitable grinding is suitable, the bearing in traction machine gearbox is poor. When the guide shaft pump of the traction machine is damaged severely worn, the gap between the guide shaft the bearing is large, the dynamic imbalance of the traction machine the guide shaft, the concentricity of the reducer worm the motor shaft of the traction machine are out of tolerance, the periodic oscillation encouragement can be presented, the elevator operation vibration will occur.

7. Car guide shoe wear

The guide shoe of the car is seriously worn, the uneven force in the heavy load operation causes friction, which leads to the car vibration. Maybe because the gap adjustment of guide slider is proper, the parallelism of guide slider is adjusted properly, the expansion contraction of guide slider is too large too small, it will vibrate.

8. The tension adjustment of wire rope is uneven the tightening amount of tension spring at fixed end is different

When the torsion of the steel wire rope is released, the tension of the steel wire rope cannot be adjusted, the tension of the steel wire rope is uneven, which exceeds the provisions of the national standard, the traction rope wheel is easy to wear. The steel wire rope with large stress is buried in the rope wheel deeply, the wire rope can run synchronously. The sliding between the wire rope the rope pulley increases, the vibration of the wire rope is aggravated.

9. Scraping of compensation chain compensation rope

If the compensation chain compensation rope are properly hung on the counterweight frame stretched too long, they scratch other parts in the shaft, causing vibration abnormal sound.

10. The wear of traction pulley rope groove is abnormal uneven

The serious wear of traction pulley groove will lead to uneven tension uneven traction speed of steel wire rope, which will cause vibration of elevator operation.

11. The traction rope has broken strand the broken wire of steel wire rope is serious

When the traction rope has broken strand, there will be friction between the broken wire rope the rope guard plate, which will cause huge dynamic static, interfere with other steel wire ropes, resulting in unstable operation of the elevator.

12. The bearing on the car roof anti rope pulley counterweight anti rope pulley is worn

When the bearing on the car roof anti rope pulley counterweight anti rope wheel is worn, the elevator will feel like a meal at high speed.

13. The screws of car wall, car bottom car roof are loose

When the elevator is running at high speed, the car should bear a great effect force. If the car frame the car wall are fastened properly, the elevator will run at high speed, the relative displacement of the parts will simply occur, then cause the vibration of the elevator.

14. The traction rope shall be equipped with damping equipment

To eliminate wire rope vibration, it is possible to clamp a few wire ropes at 300 to 500mm position above the steel rope rope head to improve resonance to punch holes in the position of steel cord with a steel plate of about 1000mm 10mm thick. First, several wire ropes are fixed at the top bottom ends of the steel bar, then adjust the balance iron component of the two ends of the steel plate to eliminate resonance. Good state, reduce the vibration range of wire rope improve the comfort.

15. The counterweight frame is twisted deformed

Due to some poor stacking, the counterweight frame is twisted deformed, the equipment is directly installed without correction. If the counter weight is fixed, vibration abnormal sound will occur.

16. The clearance of safety gear is small

After the safety gear acts, Qi block is completely reset, the friction track is in operation.

17. There are foreign matters in the shaft

When counterweight is running, it collides with foreign matters in the shaft transmits it to the lift car, causing a sensation.

18. The shaft is sealed without vent

Generally, the elevator shaft with machine room is fully sealed