Tool for checking shaking reason of steel wire rope
By designing a tooling including rollers and mandrels, it is possible to check the cause of elevator wire rope shaking without disassembling the traction machine, solving the problem of high detection costs in the existing technology, and achieving the effect of reducing the detection costs.
Patent Information
- Application Number
- CN202421370157.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-17
AI Technical Summary
When checking the reasons for the shaking of the elevator wire rope, the existing technology needs to disassemble the traction machine for inspection, resulting in high inspection costs.
A tooling including a roller and a mandrel is designed. The roller is equipped with a rope groove that cooperates with the wire rope. By moving the roller, it is pressed to block the transmission of vibration force, thereby checking whether the wire rope shaking is caused by the traction machine.
The tooling does not need to disassemble the traction machine, which reduces the cost of inspection and improves the structure, and has the advantages of easy assembly, easy adjustment, and stable structure.
Smart Images
Figure CN222523914U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of elevators, and in particular relates to a tool for checking the cause of wire rope shaking. Background Art
[0002] The elevator is placed on the passengers through the car, which is connected to the traction machine through the wire rope, and the traction machine drives the car up and down. During the operation of the elevator, if the car vibrates, it will reduce the passenger experience. There are many reasons for the vibration of the car, but the most likely reason is the shaking of the wire rope that pulls the car up and down. There are also many reasons for the shaking of the wire rope, one of which may be the abnormal shaking of the traction machine. After determining that the vibration of the car is caused by the shaking of the wire rope, it is necessary to check the cause of the shaking of the wire rope, including whether it is caused by the abnormal shaking of the traction machine, so as to repair it accordingly.
[0003] At present, in order to check whether the wire rope shaking is caused by the abnormal shaking of the traction machine, the method adopted is to disassemble the traction machine and check the internal parts of the traction machine to see if there are any parts with abnormal wear, lack of lubrication, etc., but this is more troublesome and the cost of checking is high. Utility Model Content
[0004] The utility model aims to provide a tool for checking the cause of wire rope vibration.
[0005] The utility model has the advantage of reducing the cost of investigation.
[0006] The technical solution of the utility model is as follows: a tool for checking the cause of wire rope shaking, comprising a roller, a rope groove matching the wire rope is provided on the roller, a core shaft is provided on the roller shaft, both ends of the core shaft are provided with a clamping mechanism for connecting to the upper end of the elevator guide rail, the core shaft is slidably connected to the clamping mechanism, and a locking mechanism is provided between the core shaft and the clamping mechanism.
[0007] In the aforementioned tooling for troubleshooting the cause of wire rope shaking, the clamping mechanism includes a bracket plate, the inner end of the bracket plate is bent and extends into the rear side of the elevator guide rail, a clamp is provided on one side of the bent portion of the bracket plate, the clamp is screwed to the bracket plate, the bracket plate clamps the elevator guide rail through the clamp, and the outer end of the bracket plate is provided with a groove passed by a core shaft, and the core shaft can move horizontally along the length of the groove.
[0008] In the aforementioned tooling for troubleshooting the cause of wire rope shaking, the locking mechanism includes a fixed plate and a movable plate. The fixed plate is connected to the bracket plate with screws. A locking bolt is provided between the movable plate and the bracket plate. A long hole passed by the locking bolt is provided on the movable plate. The movable plate is passed through by the core shaft. An adjusting bolt is provided on the movable plate. The adjusting bolt passes through the movable plate and then connects to the fixed plate.
[0009] In the aforementioned tooling for troubleshooting the cause of wire rope shaking, a clamping plate partially embedded in the core shaft is provided on the outer side of the movable plate, and the clamping plate is screwed to the movable plate.
[0010] In the aforementioned tooling for troubleshooting wire rope vibration causes, the core shaft is connected to the roller bearing.
[0011] Compared with the prior art, the utility model has a roller that can move horizontally. The roller is located at the upper end of the elevator guide rail. When the elevator is operating normally, the roller does not contact the wire rope, thereby avoiding an increase in the power consumption of the elevator. When checking whether the wire rope shaking is caused by the traction machine, it is only necessary to move the roller so that the roller presses the wire rope tightly, thereby blocking the transmission of vibration force between the traction machine and the car. If the vibration of the car is improved, it means that the cause of the vibration is indeed caused by the traction machine. Otherwise, it means that the cause of the vibration is caused by other places, and it is necessary to continue to check other places. Since it is not necessary to disassemble the traction machine when checking whether the cause of the wire rope shaking is caused by the traction machine, the cost of checking is low. Therefore, the utility model has the advantage of reducing the cost of checking.
[0012] In addition, through further improvements in structure, the utility model has the advantages of easy assembly, convenient adjustment, and stable structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] Figure 2 It is a schematic diagram of the utility model in an elevator.
[0015] The markings in the accompanying drawings are: 1-roller, 2-wire rope, 3-rope groove, 4-core shaft, 5-bracket plate, 6-clamp plate, 7-elevator guide rail, 8-groove, 9-fixed plate, 10-moving plate, 11-locking bolt, 12-long hole, 13-adjusting bolt, 14-card, 15-traction machine, 16-car, 17-rope head plate, 18-counterweight. DETAILED DESCRIPTION
[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0017] The general structure of the elevator, such as Figure 2 As shown, the hoist 15 includes a traction machine 15 located at the top of the hoistway, a steel wire rope 2 is wound around the traction wheel of the traction machine 15, one end of the steel wire rope 2 is connected to the counterweight 18, and the other end of the steel wire rope is fixed to the top of the hoistway through the rope head plate 17 after passing around the top wheel of the car 16. The counterweight 18 is used as a balancing weight for the car 16. The traction machine 15 drives the steel wire rope 2 to move, driving the counterweight 18 and the car 16 to move in opposite directions at the same time.
[0018] Example. Tooling for troubleshooting wire rope vibration causes, such as Figure 1 As shown, it includes a roller 1, on which is provided a rope groove 3 cooperating with a steel wire rope 2, the number of the rope grooves 3 is equal to the number of the steel wire ropes 2 for traction car lifting, and the roller 1 is axially provided with a core shaft 4, the core shaft 4 is connected to the roller 1 bearing, both ends of the core shaft 4 are provided with a clamping mechanism for connecting to the upper end of an elevator guide rail 7, the elevator guide rail 7 is a guide rail close to the traction machine, not a guide rail close to the rope head plate 17, the core shaft 4 is slidably connected to the clamping mechanism, and a locking mechanism is provided between the core shaft 4 and the clamping mechanism.
[0019] The clamping mechanism includes a bracket plate 5, the inner end of the bracket plate 5 is bent and extends into the rear side of the elevator guide rail 7, a clamping plate 6 is provided on one side of the bent portion of the bracket plate 5, the clamping plate 6 is screwed to the bracket plate 5, the bracket plate 5 clamps the elevator guide rail 7 through the clamping plate 6, and the outer end of the bracket plate 5 is provided with a groove 8 passed by the core shaft 4, and the core shaft 4 can move horizontally along the length of the groove 8.
[0020] The locking mechanism includes a fixed plate 9 and a movable plate 10, both of which are L-shaped. The fixed plate 9 is screwed to the bracket plate 5. Four locking bolts 11 are arranged between the movable plate 10 and the bracket plate 5. The movable plate 10 is provided with a horizontal long hole 12 passed by the corresponding locking bolts 11. The movable plate 10 is passed through by the core shaft 4. The movable plate 10 is provided with an adjusting bolt 13. The adjusting bolt 13 passes through the movable plate 10 and then connects to the fixed plate 9.
[0021] A clamping plate 14 partially embedded in the core shaft 4 is provided on the outer side of the movable plate 10 . The clamping plate 14 is screwed to the movable plate 10 . The clamping plate 14 is used to prevent the core shaft 4 from rotating under the friction force of the roller 1 and to prevent the core shaft 4 from axial movement.
[0022] Working principle: Under normal circumstances, the roller 1 should be kept out of contact with the wire rope 2. When checking whether the cause of the wire rope shaking is caused by the abnormal vibration of the traction machine, loosen the locking bolt 11 and turn the adjusting bolt 13 to press the roller 1 against the wire rope 2. The shaking of the wire rope 2 is weakened at the roller 1 and then transmitted to the car 16. After a period of use, if the abnormal vibration of the car 16 is improved, it can be considered that it is indeed caused by the abnormality of the traction machine. Otherwise, it is necessary to check other places. After the inspection is completed, it is necessary to restore the roller 1 so that it does not contact the wire rope 2 to avoid increased power consumption during daily operation of the elevator.
[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
Claims
1. The tooling for checking the cause of wire rope vibration is characterized by: The invention comprises a roller (1), a rope groove (3) matched with a steel wire rope (2) is provided on the roller (1), a core shaft (4) is provided axially on the roller (1), both ends of the core shaft (4) are provided with a clamping mechanism for connecting to the upper end of an elevator guide rail (7), the core shaft (4) is slidably connected to the clamping mechanism, and a locking mechanism is provided between the core shaft (4) and the clamping mechanism.
2. The tool for checking the cause of wire rope vibration according to claim 1 is characterized in that: The clamping mechanism comprises a bracket plate (5), the inner end of the bracket plate (5) is bent and extends into the rear side of the elevator guide rail (7), a clamping plate (6) is provided on one side of the bent portion of the bracket plate (5), the clamping plate (6) is screwed to the bracket plate (5), the bracket plate (5) clamps the elevator guide rail (7) through the clamping plate (6), and the outer end of the bracket plate (5) is provided with a groove (8) through which the core shaft (4) passes, and the core shaft (4) can move horizontally along the length of the groove (8).
3. The tool for checking the cause of wire rope vibration according to claim 2 is characterized in that: The locking mechanism comprises a fixed plate (9) and a movable plate (10), the fixed plate (9) being screw-connected to the bracket plate (5), a locking bolt (11) being arranged between the movable plate (10) and the bracket plate (5), a long hole (12) being passed through by the locking bolt (11) being arranged on the movable plate (10), a core shaft (4) passing through the movable plate (10), an adjusting bolt (13) being arranged on the movable plate (10), and the adjusting bolt (13) passing through the movable plate (10) and then connected to the fixed plate (9).
4. The tool for checking the cause of wire rope vibration according to claim 3 is characterized in that: A clamping plate (14) partially embedded in the core shaft (4) is provided on the outer side of the movable plate (10), and the clamping plate (14) is screw-connected to the movable plate (10).
5. The tool for checking the cause of wire rope vibration according to claim 1 is characterized in that: The core shaft (4) is connected to the bearing of the roller (1).