Anti-shaking device for traction rope of elevator and elevator
By introducing sway limiting devices and sensor systems into the elevator, the problem of elevator traction rope swaying is solved, thereby achieving stable elevator operation and improved safety.
Patent Information
- Application Number
- CN202511418187.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2025-12-16
AI Technical Summary
Existing technology cannot effectively limit the swaying of elevator traction ropes, especially in high-rise buildings, leading to unstable elevator operation and safety hazards.
By employing sway limiting devices, wall-side fixing devices, storage devices, and building sway sensors, the release and storage of sway limiting devices are controlled by detecting building sway, thereby limiting the sway range of the elevator traction rope, and, when necessary, operating at low speed to reduce the sway amplitude.
It effectively suppresses the swaying of the elevator traction rope, ensures stable operation of the elevator in high-rise buildings, reduces safety hazards, and avoids elevator operation interference and impact caused by swaying.
Smart Images
Figure CN121134473A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of elevator technology, specifically to an elevator traction rope anti-sway device and an elevator. Background Technology
[0002] High-rise buildings can sway due to airflow, causing vibrations in the elevator's traction ropes, such as the traction steel cables. Excessive swaying of the traction ropes can lead to them becoming entangled in shaft components, affecting the elevator's normal operation. Therefore, it is necessary to limit the vibration amplitude of the steel cables.
[0003] To address this issue, Chinese Patent Document 1 (CN113830650A) proposes arranging anti-sway rollers with spring buffers around the steel wire rope on the elevator car top to reduce the swaying amplitude. However, this approach has the following problems: 1. The anti-sway device is located at the end of the steel wire rope, which is the position with the smallest amplitude, so its ability to limit the vibration amplitude of the steel wire rope is poor; 2. It can only limit the vibration of the traction steel wire rope on the car side, and cannot limit the vibration of the traction steel wire rope on the counterweight side.
[0004] Chinese Patent Document 2 (CN220283228U) describes an anti-winding device installed at half the height of the hoistway. The device has holes on a rod for the working and safety wire ropes to pass through, preventing the wire ropes from winding. When the car travels beyond half the hoistway height, the anti-winding device moves with the car; when the car travels below half the hoistway height, the anti-winding device is confined to half the hoistway height, thus preventing winding. However, this device has the following problems when applied to elevators: At lower tower elevator speeds, the anti-winding device can remain operational for extended periods without affecting the elevator's normal operation. However, at higher elevator speeds, the anti-sway device can cause significant impact, interfering with normal elevator use. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to provide a technical solution that can suppress the swaying of elevator traction ropes.
[0006] To solve the above-mentioned technical problems, the present invention provides an elevator traction rope anti-sway device, including a sway limiting device, a wall-side fixing device, a storage device, and a building sway sensor;
[0007] The sway limiting device includes a traction rope limiting part, a connecting arm, and a guide part; the sway limiting device can move up and down along the elevator guide rail through the guide part; the elevator traction rope passes through the through hole in the middle of the traction rope limiting part, and the sway range of the elevator traction rope is limited by the through hole in the middle of the traction rope limiting part.
[0008] The wall-side fixing device is located in the middle of the shaft and overlaps with a portion of the vertical projection of the connecting arm, in order to prevent the sway limiting device from moving below the wall-side fixing device.
[0009] The storage device is fixed to the top of the shaft and is used to store or release the sway limiting device. The building sway sensor detects the swaying of the building. When the detected sway value is greater than a preset threshold and exceeds a preset time, the storage device releases the sway limiting device. When the detected sway value is not greater than the preset threshold and exceeds a preset time, the storage device stores the sway limiting device.
[0010] Preferably, the lower part of the traction rope limiting part has a buffer device for buffering when the car comes into contact with the traction rope limiting part.
[0011] Preferably, the buffer device includes a mounting plate, a buffer spring, a contact switch, and a buffer rubber block; when the compression of the buffer spring exceeds a preset compression, the contact switch is triggered, and the triggered contact switch sends a stop signal to the elevator.
[0012] Preferably, the step of releasing the shaking limiting device by the storage device is as follows:
[0013] Step A11: Control the elevator car to run to the top floor at a preset inspection speed;
[0014] Step A12, the storage device releases the sway limiting device, causing the sway limiting device to contact the top of the elevator car;
[0015] Step A13: Restore the operation of the elevator car.
[0016] Preferably, the step of the storage device storing the shaking limiting device is as follows:
[0017] Step B11: Control the elevator car to run to the top floor at a preset inspection speed;
[0018] Step B12, the storage device retracts the sway limiting device, so that the sway limiting device is fixed to the top of the shaft by the storage device;
[0019] Step B13: Restore the operation of the elevator car.
[0020] Preferably, the step of releasing the shaking limiting device by the storage device is as follows:
[0021] Step A21: Control the elevator car to run to the ground floor at a preset inspection speed;
[0022] Step A22, the storage device releases the sway limiting device, causing the sway limiting device to contact the top of the elevator counterweight;
[0023] Step A23: Restore the operation of the elevator car.
[0024] Preferably, the step of the storage device storing the shaking limiting device is as follows:
[0025] Step B21: Control the elevator car to run to the ground floor at a preset inspection speed;
[0026] Step B22, the storage device retracts the sway limiting device, so that the sway limiting device is fixed to the top of the shaft by the storage device;
[0027] Step B23: Restore the operation of the elevator car.
[0028] Preferably, the storage device includes a mounting base, an upper connecting arm, a lower connecting arm, a gripper, and a drive mechanism; the mounting base is fixed to the top of the wellbore; the upper connecting arm and the lower connecting arm can rotate relative to each other; the lower connecting arm and the gripper can rotate relative to each other; the drive mechanism is used to drive the movement between the upper connecting arm, the lower connecting arm, and the gripper.
[0029] The present invention also provides an elevator, wherein the elevator traction rope anti-sway device as described in claim 1 is provided on the car side or the counterweight side.
[0030] Preferably, when the sway limiting device is released, the elevator operates at a second speed lower than the preset rated speed.
[0031] Compared with the prior art, the sway limiting device of the present invention starts to work after the building sway exceeds a preset threshold; when the building sway is below the preset threshold, the sway limiting device is stored at the top of the shaft and does not affect the operation of the elevator. Attached Figure Description
[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0033] Figure 1 This is a schematic diagram of the elevator traction rope anti-sway device installed in the elevator shaft according to Example 1.
[0034] Figure 2 This is a schematic diagram of the elevator traction rope anti-sway device in Example 1.
[0035] Figure 3 This is a schematic diagram of the buffer device for the elevator traction rope anti-sway device in Example 1.
[0036] Figure 4 This is a schematic diagram of the storage device of the elevator traction rope anti-sway device in the released state in Example 1.
[0037] Figure 5 This is a schematic diagram of the storage device of the elevator traction rope anti-sway device in the stored state in Example 1. Detailed Implementation
[0038] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art.
[0039] Example 1
[0040] like Figure 1 and Figure 2 As shown, this embodiment provides an elevator traction rope anti-sway device, including a sway limiting device 1, a wall-side fixing device 4, a storage device 2, and a building sway sensor (not shown in the figure);
[0041] The sway limiting device 1 includes a traction rope limiting part 11, a connecting arm 12, and a guide part 13; the sway limiting device 1 can move up and down along the elevator guide rail 5 through the guide part 13; the elevator traction rope 3 passes through the through hole in the middle of the traction rope limiting part 11, and the sway range of the elevator traction rope 3 is limited by the through hole in the middle of the traction rope limiting part 11.
[0042] The wall-side fixing device 4 is located in the middle of the shaft and overlaps with a portion of the vertical projection of the connecting arm 12, in order to prevent the sway limiting device 1 from moving below the wall-side fixing device 4.
[0043] The storage device 2 is fixed to the top of the shaft and is used to store or release the sway limiting device 1. The building sway sensor detects the sway of the building. When the detected sway value is greater than a preset threshold for a preset time, the elevator enters the anti-sway operation mode and the storage device 2 releases the sway limiting device 1. When the detected sway value is not greater than the preset threshold for a preset time, the elevator enters the normal operation mode and the storage device 2 stores the sway limiting device 1.
[0044] The elevator traction rope anti-sway device in this embodiment can be installed on the car side, the counterweight side, or both the car side and the counterweight side, such as... Figure 1 As shown.
[0045] In anti-sway operation mode, the sway limiting device 1 is released. When the car or counterweight moves to more than half the height of the hoistway, the sway limiting device 1 can move with the car or counterweight without obstructing the elevator's operation, and can reduce the sway amplitude of the elevator traction rope to a certain extent. When the car or counterweight moves to less than half the height of the hoistway, the sway limiting device 1 can be limited by the wall-side fixing device 4, and the sway limiting device 1 is fixed at half the height of the hoistway, which can better play the role of anti-swaying the elevator traction rope. In normal operation mode, the sway limiting device 1 is fixed to the top of the hoistway by the storage device 2, and will not interfere with the operation of the elevator.
[0046] like Figure 3 As shown, the lower part of the traction rope limiting part 11 in this embodiment has a buffer device 6 for buffering when the car comes into contact with the traction rope limiting part 11. The buffer device 6 includes a mounting plate 61, a buffer spring 62, a contact switch 63, and a buffer rubber block 64.
[0047] When the guide section 13 fails, the traction rope limiting section 11 may become stuck on the guide rail 5, posing a safety hazard. During normal elevator operation, the maximum compression of the buffer spring 62 will not trigger the contact switch 63. However, when the guide section 13 fails, the buffer spring 62 compresses further, triggering the contact switch 63. Upon triggering, the contact switch 63 sends a stop signal to the elevator.
[0048] like Figure 4 and Figure 5 As shown, the storage device 2 includes a mounting base 21, an upper connecting arm 22, a lower connecting arm 23, a gripper 24, and a drive mechanism (not shown in the figure); the mounting base 21 is fixed to the top of the wellbore; the upper connecting arm 22 and the lower connecting arm 23 can rotate relative to each other; the lower connecting arm 23 and the gripper 24 can rotate relative to each other; the drive mechanism is used to drive the movement between the upper connecting arm 22, the lower connecting arm 23, and the gripper 24.
[0049] When the sway value detected by the building sway sensor exceeds a preset threshold for a preset time, the anti-sway operation mode is entered. If the traction rope anti-sway device of this embodiment is configured on the car side, the steps for the car side storage device to release the sway limiting device are as follows:
[0050] Step A11: Control the elevator car to run to the top floor at a preset inspection speed;
[0051] Step A12: After the elevator levels, the storage device releases the sway limiting device, causing the sway limiting device to contact the top of the elevator car and eventually stop at the top of the car.
[0052] Step A13: Raise the chucks to resume the operation of the elevator car.
[0053] If the anti-sway device of the traction rope in this embodiment is also configured on the counterweight side, the step of releasing the sway limiting device in the counterweight side storage device is as follows:
[0054] Step A21: Control the elevator car to run to the bottom floor at the preset inspection speed; at this time, the counterweight will run to the top floor.
[0055] Step A22: After the elevator levels, the storage device releases the sway limiting device, causing the sway limiting device to contact the top of the elevator counterweight and eventually stop at the top of the counterweight.
[0056] Step A23: Raise the chucks to resume the operation of the elevator car.
[0057] After the building sway decreases, when the sway value detected by the building sway sensor does not exceed a preset threshold for a preset time, the elevator enters normal operation mode. If the sway limiting device has been released, it needs to be retracted. If the traction rope anti-sway device of this embodiment is configured on the car side, the steps for the retracting device to retract the sway limiting device are as follows:
[0058] Step B11: Control the elevator car to run to the top floor at a preset inspection speed;
[0059] Step B12: After the elevator is leveled, the chucks are lowered, and then the storage device retracts the sway limiting device, so that the sway limiting device is fixed to the top of the shaft by the storage device.
[0060] Step B13: Restore the operation of the elevator car.
[0061] If the anti-sway device of the traction rope in this embodiment is configured on the heavier side, the step of the storage device for storing the sway limiting device is as follows:
[0062] Step B21: Control the elevator car to run to the ground floor at a preset inspection speed;
[0063] Step B22: After the elevator is leveled, the chucks are lowered, and then the storage device retracts the sway limiting device, so that the sway limiting device is fixed to the top of the shaft by the storage device.
[0064] Step B23: Restore the operation of the elevator car.
[0065] In an elevator equipped with the anti-sway device of the traction rope in this embodiment, after the sway limiting device is released and the elevator resumes operation, the elevator car runs at a second speed lower than the preset rated speed. When the sway limiting device is retracted, the elevator car runs at the preset rated speed.
[0066] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.
Claims
1. An elevator traction rope anti-sway device, characterized in that, This includes sway limiting devices, wall-side fixing devices, storage devices, and building sway sensors; The sway limiting device includes a traction rope limiting part, a connecting arm, and a guide part; the sway limiting device can move up and down along the elevator guide rail through the guide part; the elevator traction rope passes through the through hole in the middle of the traction rope limiting part, and the sway range of the elevator traction rope is limited by the through hole in the middle of the traction rope limiting part. The wall-side fixing device is located in the middle of the shaft and overlaps with a portion of the vertical projection of the connecting arm, in order to prevent the sway limiting device from moving below the wall-side fixing device. The storage device is fixed to the top of the shaft and is used to store or release the sway limiting device; The building sway sensor detects the swaying of the building. When the detected sway value is greater than a preset threshold and exceeds a preset time, the storage device releases the sway limiting device. When the detected sway value is not greater than the preset threshold and exceeds a preset time, the storage device stores the sway limiting device.
2. The elevator traction rope anti-sway device according to claim 1, characterized in that, The lower part of the traction rope limiting section has a buffer device for cushioning when the car comes into contact with the traction rope limiting section.
3. The elevator traction rope anti-sway device according to claim 2, characterized in that, The buffer device includes a mounting plate, a buffer spring, a contact switch, and a buffer rubber block; when the compression of the buffer spring exceeds a preset compression, the contact switch is triggered, and the triggered contact switch sends a stop signal to the elevator.
4. The elevator traction rope anti-sway device according to claim 1, characterized in that, The steps for the storage device to release the shaking restriction device are as follows: Step A11: Control the elevator car to run to the top floor at a preset inspection speed; Step A12, the storage device releases the sway limiting device, causing the sway limiting device to contact the top of the elevator car; Step A13: Restore the operation of the elevator car.
5. The elevator traction rope anti-sway device according to claim 4, characterized in that, The steps for the storage device to house the shaking limiting device are as follows: Step B11: Control the elevator car to run to the top floor at a preset inspection speed; Step B12, the storage device retracts the sway limiting device, so that the sway limiting device is fixed to the top of the shaft by the storage device; Step B13: Restore the operation of the elevator car.
6. The elevator traction rope anti-sway device according to claim 1, characterized in that, The steps for the storage device to release the shaking restriction device are as follows: Step A21: Control the elevator car to run to the ground floor at a preset inspection speed; Step A22, the storage device releases the sway limiting device, causing the sway limiting device to contact the top of the elevator counterweight; Step A23: Restore the operation of the elevator car.
7. The elevator traction rope anti-sway device according to claim 6, characterized in that, The steps for the storage device to house the shaking limiting device are as follows: Step B21: Control the elevator car to run to the ground floor at a preset inspection speed; Step B22, the storage device retracts the sway limiting device, so that the sway limiting device is fixed to the top of the shaft by the storage device; Step B23: Restore the operation of the elevator car.
8. The elevator traction rope anti-sway device according to claim 1, characterized in that, The storage device includes a mounting base, an upper connecting arm, a lower connecting arm, a gripper, and a drive mechanism; the mounting base is fixed to the top of the wellbore; the upper connecting arm and the lower connecting arm can rotate relative to each other; the lower connecting arm and the gripper can rotate relative to each other; the drive mechanism is used to drive the movement between the upper connecting arm, the lower connecting arm, and the gripper.
9. An elevator, characterized in that, An anti-sway device for the elevator traction rope as described in claim 1 is provided on the car side or the counterweight side.
10. The elevator according to claim 9, characterized in that, When the sway limiting device is released, the elevator runs at a second speed, which is lower than the preset rated speed.
Citation Information
Patent Citations
High-stability operation elevator
CN113830650A