A rope end device for elevators and its installation structure

Abstract

This utility model discloses an elevator rope end device and its installation structure. The rope end device includes a conical sleeve, a spring, and a vertically arranged screw. The spring is sleeved on the screw, and a washer and nut are provided at the upper end of the screw corresponding to the spring. The conical sleeve is located at the lower end of the screw. It also includes a hollow servo motor, which is sleeved on the screw and located between the conical sleeve and the spring. A rotating sleeve is provided on the hollow servo motor, which is sleeved on the screw and connected to the hollow servo motor. The rotating sleeve has external threads. An end cap is provided on the outside of the rotating sleeve, which is sleeved on the rotating sleeve and has an annular groove corresponding to the spring inside. The lower end of the spring is inserted into the annular groove. The inner wall of the end cap has threads for threaded connection with the rotating sleeve. This utility model is easy to operate, effectively improves the efficiency of adjusting the tension of the traction rope, and helps reduce elevator maintenance costs and time costs.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology and relates to an elevator rope head device and its installation structure. Background Technology

[0002] In elevator systems, traction ropes, as key components connecting the car and counterweight and transmitting power, play a crucial role in the smoothness, safety, and traction capacity of elevator operation due to their tension balance. However, in practical applications, significant differences in tension often exist between multiple traction steel wire ropes due to manufacturing errors, inconsistent traction rope lengths, installation deviations, uneven traction rope contraction caused by load changes and environmental factors (such as temperature and humidity) during elevator use, as well as wear and aging of the traction ropes themselves.

[0003] This uneven tension can cause a series of problems. First, tension differences can cause the elevator car to tilt during operation, affecting passenger comfort and potentially posing safety hazards. Second, uneven tension accelerates abnormal wear of the traction ropes, shortening their lifespan and increasing replacement costs. Furthermore, uneven tension can also increase elevator noise during operation, affecting the overall performance of the elevator and the user experience.

[0004] In existing technologies, the tension of the traction rope is mainly balanced by manually adjusting the position of the rope end or adding or removing counterweights. However, this adjustment method is complex to operate, and manual adjustment is inefficient, which increases the maintenance and time costs of the elevator. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide an elevator rope head device and its installation structure. This utility model is easy to operate, can effectively improve the efficiency of adjusting the tension of the traction rope, and helps to reduce elevator maintenance costs and time costs.

[0006] The technical solution of this utility model is implemented as follows: An elevator rope end device includes a conical sleeve, a spring, and a vertically arranged screw. The spring is sleeved on the screw, and a nut is provided on the upper end of the screw corresponding to the spring. A washer is provided on the screw between the nut and the spring. The conical sleeve is located at the lower end of the screw.

[0007] It also includes a hollow servo motor, which is sleeved on the screw and located between the tapered sleeve and the spring. A rotating sleeve is provided on the hollow servo motor, which is sleeved on the screw and connected to the hollow servo motor so as to drive the rotating sleeve to rotate forward or backward through the hollow servo motor. The rotating sleeve is provided with external threads. An end cap is provided on the outside of the rotating sleeve, which is sleeved on the rotating sleeve and has an annular groove corresponding to the spring inside the end cap. The lower end of the spring is inserted into the annular groove. The inner wall of the end cap is provided with threads for threaded connection with the rotating sleeve.

[0008] Furthermore, an annular damping rubber is provided in the annular groove of the end cap, and the damping rubber is located at the bottom of the annular groove of the end cap.

[0009] An elevator rope head device installation structure includes a rope head plate and the aforementioned elevator rope head device. The rope head plate is provided with a through hole for the screw to lift and lower. The hollow servo motor is located above the rope head plate and fixed to the rope head plate. When the central control servo motor drives the rotating sleeve to rotate forward or backward, the end cover is lifted and lowered, thereby compressing or releasing the spring and adjusting the tension of the traction rope.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a hollow servo motor to drive a rotating sleeve to rotate forward or backward, thereby raising or lowering the end cover, compressing or releasing the spring, and adjusting the tension of the traction rope. Compared to the traditional method of manually adjusting the rope end position or adding / removing counterweights to balance the traction rope tension, this invention is easy to operate, effectively improves the efficiency of adjusting the traction rope tension, and helps reduce elevator maintenance costs and time. Attached Figure Description

[0011] Figure 1 - Front view of the elevator rope head device described in this utility model.

[0012] Figure 2-Figure 1 BB cross-section.

[0013] Figure 3 - Schematic diagram of the installation structure of this utility model.

[0014] Wherein: 1-conical sleeve; 2-screw; 3-hollow servo motor; 4-rotating sleeve; 5-end cap; 6-shock-absorbing rubber; 7-spring; 8-washer; 9-nut; 10-rope end plate. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] See Figure 1 , Figure 2 and Figure 3 An elevator rope end device includes a cone sleeve 1, a spring 7 and a vertically arranged screw 2. The spring 7 is sleeved on the screw 2 and a nut 9 is provided on the upper end of the screw 2 corresponding to the spring 7. A washer 8 is provided on the screw 2 between the nut 9 and the spring 7. The cone sleeve 1 is provided at the lower end of the screw 2.

[0017] It also includes a hollow servo motor 3, which is sleeved on the screw 2 and located between the tapered sleeve 1 and the spring 7. A rotating sleeve 4 is provided on the hollow servo motor 3. The rotating sleeve 4 is sleeved on the screw 2 and connected to the hollow servo motor 3 so that the hollow servo motor 3 can drive the rotating sleeve 4 to rotate forward or backward. The rotating sleeve 4 is provided with external threads. An end cap 5 is provided on the outside of the rotating sleeve 4. The end cap 5 is sleeved on the rotating sleeve 4 and has an annular groove corresponding to the spring 7 inside the end cap 5. The lower end of the spring 7 is inserted into the annular groove. The inner wall of the end cap 5 is provided with threads so as to be threadedly connected to the rotating sleeve 4.

[0018] In specific implementation, an annular shock-absorbing rubber 6 is provided in the annular groove of the end cover 5, and the shock-absorbing rubber 5 is located at the bottom of the annular groove of the end cover 5.

[0019] When using the elevator rope head device described in this utility model, the elevator rope head device is installed on the rope head plate. The installation structure is as follows: a through hole for the screw to rise and fall is provided on the rope head plate. The screw is movably mounted on the rope head plate. A hollow servo motor is sleeved on the screw and located on the rope head plate. The hollow servo motor is fixedly connected to the rope head plate. Then, a rotating sleeve is sleeved on the screw and fixed to the rotor of the hollow servo motor, so as to facilitate the rotation of the rotating sleeve by driving the hollow servo motor. At the same time, an end cap is sleeved on the rotating sleeve. The thread on the inner wall of the end cap is connected to the external thread of the rotating sleeve. The lower end of the spring is inserted into the annular groove of the end cap. Then, a washer and a nut are set on the screw corresponding to the upper end of the spring to lock the top of the spring. Finally, a tapered sleeve is set at the lower end of the screw, thereby completing the installation of the rope head device.

[0020] To ensure the end cap has a certain lifting height on the rotating sleeve, the rotating sleeve should have a certain length, as shown in the figure, the rotating sleeve extends a certain length beyond the end cap. When using this rope head device, the rotating sleeve is driven to rotate by controlling the hollow servo motor, thereby realizing the lifting and lowering of the end cap, compressing or releasing the spring, and adjusting the tension of the traction rope. Compared with the traditional method of manually adjusting the position of the rope head or adding or removing counterweights to balance the tension of the traction rope, this utility model is convenient to operate and highly efficient in adjusting the tension of the traction rope, which can effectively reduce elevator maintenance costs and time costs.

[0021] When using this rope-end device, each traction rope in the elevator system is equipped with one of the rope-end devices described in this invention. A traction rope tension monitoring module is installed below the elevator main unit to monitor the tension of each traction rope in real time. The traction rope tension monitoring module is connected to the control module to transmit the monitored traction rope tension data to the control module. The control module is connected to a hollow servo motor. When the tension of one or more traction ropes exceeds the set range, the control module controls the hollow servo motor of the corresponding rope-end device to rotate forward or reverse according to the traction rope tension data, driving the end cover to compress or release the spring, thereby realizing the lifting and lowering of the screw, and thus adjusting the traction rope tension. When the traction rope tension monitoring module detects that the traction rope tension is within the set range, the control module controls the hollow servo motor to stop working, thereby ensuring that the tension of each traction rope remains consistent, effectively protecting the traction ropes and related equipment, reducing manual intervention, improving adjustment efficiency and elevator operation stability.

[0022] Finally, it should be noted that the above embodiments of this utility model are merely examples for illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations and modifications based on the above description. It is impossible to exhaustively list all possible implementations here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A rope end device for an elevator, comprising a cone sleeve, a spring and a vertically arranged screw rod, the spring is sleeved on the screw rod, a nut is arranged at the corresponding upper end of the screw rod of the spring, a gasket is arranged between the nut and the spring at the corresponding screw rod, and the cone sleeve is arranged at the lower end of the screw rod; characterized in that ： It also includes a hollow servo motor, which is sleeved on the screw and located between the tapered sleeve and the spring. A rotating sleeve is provided on the hollow servo motor, which is sleeved on the screw and connected to the hollow servo motor so as to drive the rotating sleeve to rotate forward or backward through the hollow servo motor. The rotating sleeve is provided with external threads. An end cap is provided on the outside of the rotating sleeve, which is sleeved on the rotating sleeve and has an annular groove corresponding to the spring inside the end cap. The lower end of the spring is inserted into the annular groove. The inner wall of the end cap is provided with threads for threaded connection with the rotating sleeve.

2. A rope end device for an elevator according to claim 1, characterized in that An annular damping rubber is provided in the annular groove of the end cap, and the damping rubber is located at the bottom of the annular groove of the end cap.

3. An elevator rope end device installation structure, characterized in that, The device includes a rope head plate and a rope head device for elevators as described in claim 1 or 2. The rope head plate is provided with a through hole for the screw to lift and lower. The hollow servo motor is located above the rope head plate and fixed to the rope head plate. When the central control servo motor drives the rotating sleeve to rotate forward or backward, the end cover is lifted and lowered, thereby compressing or releasing the spring and adjusting the tension of the traction rope.

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