Mechanical monitoring device for an elevator counterweight

Abstract

The utility model relates to elevator counter rope wheel technical field, specifically is a kind of mechanical monitoring device of elevator counter rope wheel, including mounting bracket, the mounting bracket top both sides are uniformly connected with baffle, the baffle opposite side is rotatably connected with counter rope wheel body, and the counter rope wheel body outer wall is around and is connected with steel wire rope;The utility model is by steel wire rope cooperation counter rope wheel body when rotating, the friction between steel wire rope and transmission sleeve can drive its rotation, transmission sleeve rotates and drives transmission rod rotation, transmission rod rotation and drive the rotation of the rotating shaft of rotary encoder, so that rotary encoder cooperation counter rope wheel body synchronous rotation, rotary encoder can identify the operating state of counter rope wheel body and can fast early warning by monitoring the rotation speed of counter rope wheel body, to solve the problem that elevator counter rope wheel can exist mechanical jamming, mechanical wear, bearing breakage etc. when operating easily cause elevator counter rope wheel operation lag or not moving.

Description

Technical Field

[0001] This utility model relates to the field of elevator anti-cord pulley technology, specifically a mechanical monitoring device for elevator anti-cord pulleys. Background Technology

[0002] The elevator anti-cord pulley is a movable pulley device installed on the upper part of the car frame and counterweight frame in the elevator system. It reduces the output power and torque of the traction machine by adjusting the traction ratio. Its core functions include controlling the tension position of the wire rope, adjusting the elevator running speed and acceleration, and improving the running stability of high-rise and high-speed elevators.

[0003] Currently, in existing technologies, maintenance and repair personnel may not be able to detect mechanical jamming, mechanical wear, or bearing damage in elevator anti-cord pulley components during actual use. This can lead to elevator malfunctions and people getting trapped, and in severe cases, it may even cause major accidents. Therefore, there is a need to propose a mechanical monitoring device for elevator anti-cord pulleys. Utility Model Content

[0004] To address the shortcomings of existing technologies, elevator deflector pulleys are prone to problems such as mechanical jamming, mechanical wear, and bearing damage during operation, which can easily cause them to lag or stop moving. This utility model proposes a mechanical monitoring device for elevator deflector pulleys.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a mechanical monitoring device for an elevator anti-cord wheel, including a mounting frame, baffles fixedly connected to both sides of the top of the mounting frame, anti-cord wheel body rotatably connected to the opposite side of the baffles, steel wire rope wound around the outer wall of the anti-cord wheel body, and monitoring mechanisms provided on both sides of the top of the mounting frame near the anti-cord wheel body.

[0006] The monitoring mechanism includes a fixed frame, which is fixedly connected to the opposite side of the baffle. A transmission sleeve is rotatably connected to the end of the fixed frame. The outer wall of the transmission sleeve is in contact with the wire rope. A rotary encoder is provided on the top of the baffle. A transmission rod is fixedly connected to the end of the rotary encoder shaft. The transmission rod and the transmission sleeve cooperate to rotate.

[0007] Preferably, the anti-corrosion pulley body is rotatably connected to a support shaft, and the end of the support shaft passes through a baffle and is rotatably connected to the baffle.

[0008] Preferably, a fixed base is fixedly connected to the top of the mounting bracket, and the end of the support shaft is rotatably connected to the inner cavity of the fixed base.

[0009] Preferably, a support base is fixedly connected to the top of the baffle, the rotary encoder is fixedly connected to one side of the support base, and the transmission rod is rotatably connected to the opposite side of the support base.

[0010] Preferably, a first transmission wheel is fixedly connected to the outer wall of the transmission sleeve, and a second transmission wheel is fixedly connected to the outer wall of the transmission rod. A transmission belt is wound around the outer walls of the first and second transmission wheels.

[0011] Preferably, the end of the fixing frame is provided with a through groove, and the steel wire rope passes through both ends of the through groove.

[0012] Preferably, both ends of the transmission sleeve are rotatably connected to bearings, and one side of the bearing is fixedly connected to the inner wall of the through groove.

[0013] The advantages of this utility model are:

[0014] This invention utilizes the friction between the steel wire rope and the transmission sleeve to drive the reverse rope wheel body during rotation. The rotation of the transmission sleeve drives the transmission rod to rotate, which in turn drives the rotating encoder shaft to rotate. This causes the rotary encoder to rotate synchronously with the reverse rope wheel body. By monitoring the rotation speed of the reverse rope wheel body, the rotary encoder can identify its operating status, thus achieving real-time detection of the mechanical operating status of the reverse rope wheel body. This facilitates maintenance personnel in quickly identifying and repairing problems, and solves the problems that can easily cause the elevator reverse rope wheel to lag or stop during operation, such as mechanical jamming, mechanical wear, and bearing damage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side sectional view of the structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the monitoring mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the transmission sleeve of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A in the middle.

[0021] In the diagram: 1. Mounting frame; 11. Baffle; 2. Reverse rope pulley body; 21. Steel wire rope; 22. Support shaft; 23. Fixing seat; 3. Monitoring mechanism; 31. Fixing frame; 32. Transmission sleeve; 33. First transmission wheel; 34. Transmission belt; 35. Second transmission wheel; 36. Support seat; 37. Rotary encoder; 38. Transmission rod; 39. Through groove; 310. Bearing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a mechanical monitoring device for an elevator anti-corrosion sheave. (Refer to...) Figures 1-5 A mechanical monitoring device for an elevator anti-corrosion pulley includes a mounting frame 1. Baffles 11 are fixedly connected to both sides of the top of the mounting frame 1. Anti-corrosion pulley body 2 is rotatably connected to the opposite side of the baffles 11. A steel wire rope 21 is wound around the outer wall of the anti-corrosion pulley body 2. Monitoring mechanisms 3 are provided on both sides of the top of the mounting frame 1 near the anti-corrosion pulley body 2. By installing the mounting frame 1 on the top of the elevator car, when the elevator is running, the steel wire rope 21 pulls the anti-corrosion pulley body 2 to rotate. The anti-corrosion pulley body 2 rotates stably in conjunction with the baffles 11 on the mounting frame 1. Simultaneously, the steel wire rope 21, through friction, drives the end of the monitoring mechanism 3 to rotate. The monitoring mechanism 3 monitors the traction speed of the steel wire rope 21 in real time, thereby identifying the mechanical operating state of the anti-corrosion pulley body 2. In specific implementation, the monitoring mechanism 3 is connected to the elevator system signal. The monitoring mechanism 3 can identify the operating state of the anti-corrosion pulley body 2 and, in conjunction with the elevator system, achieve rapid early warning, thus facilitating maintenance personnel to perform maintenance and repair, and preventing elevator accidents.

[0025] The monitoring mechanism 3 includes a fixed frame 31, which is fixedly connected to the opposite side of the baffle 11. A transmission sleeve 32 is rotatably connected to the end of the fixed frame 31. The outer wall of the transmission sleeve 32 contacts the wire rope 21. A rotary encoder 37 is installed on the top of the baffle 11. A transmission rod 38 is fixedly connected to the end of the rotating shaft of the rotary encoder 37. The transmission rod 38 rotates in cooperation with the transmission sleeve 32, pulling the anti-rope wheel body 2 to rotate through the wire rope 21. At the same time, the wire rope 21 drives the transmission sleeve 32 on the fixed frame 31 to rotate using friction. The transmission sleeve 32 drives the transmission rod 38 to rotate. The transmission rod 38 rotates synchronously with the rotary encoder 37, making... The rotary encoder 37 rotates synchronously with the anti-cord wheel body 2, thereby enabling the rotary encoder 37 to identify the mechanical rotation state of the anti-cord wheel body 2 and to quickly identify abnormal operation of the anti-cord wheel body 2 and provide a rapid warning. The rotary encoder 37 used in this embodiment is existing technology. Its principle is a speed displacement sensor that integrates opto-electro-mechanical technology. When the rotary encoder 37 drives the grating disk to rotate, the light emitted by the light-emitting element is cut into intermittent light by the slit of the grating disk and received by the receiving element to generate an initial signal. After processing by the subsequent circuit, the signal outputs a pulse or code signal.

[0026] Reference Figure 1 and Figure 2 The anti-rope wheel body 2 is rotatably connected to a support shaft 22. The end of the support shaft 22 passes through the baffle 11 and is rotatably connected to the baffle 11. A fixed seat 23 is fixedly connected to the top of the mounting frame 1. The end of the support shaft 22 is rotatably connected to the inner cavity of the fixed seat 23. The anti-rope wheel body 2 is pulled to rotate by the wire rope 21. The anti-rope wheel body 2 rotates stably on the support shaft 22. The support shaft 22 passes through the baffle 11 and is located on the fixed seat 23 to stably support the rotation of the anti-rope wheel body 2, so that the wire rope 21 can stably pull the anti-rope wheel body 2 to rotate.

[0027] Reference Figure 3 , Figure 4 and Figure 5A support base 36 is fixedly connected to the top of the baffle 11. A rotary encoder 37 is fixedly connected to one side of the support base 36. A transmission rod 38 is rotatably connected to the opposite side of the support base 36. A first transmission wheel 33 is fixedly connected to the outer wall of the transmission sleeve 32. A second transmission wheel 35 is fixedly connected to the outer wall of the transmission rod 38. A transmission belt 34 is wound around the outer walls of the first transmission wheel 33 and the second transmission wheel 35. A through groove 39 is opened at the end of the fixing frame 31. A steel wire rope 21 passes through both ends of the through groove 39. Bearings 310 are rotatably connected to both ends of the transmission sleeve 32. 10 is fixedly connected to the inner wall of the through groove 39 on one side. The transmission sleeve 32 on the fixed frame 31 is driven to rotate by friction through the wire rope 21. The transmission sleeve 32 is stably coordinated with the wire rope 21 by the bearing 310 in the through groove 39. At the same time, the transmission sleeve 32 drives the transmission rod 38 to rotate by the transmission belt 34, the first transmission wheel 33 and the second transmission wheel 35. The transmission rod 38 is located on the support seat 36 and rotates stably, driving the rotating shaft end of the rotary encoder 37 to rotate, thereby enabling the rotary encoder 37 to identify the mechanical rotation state of the anti-rope wheel body 2.

[0028] Working principle: The mounting bracket 1 is installed on the top of the elevator car. When the elevator is running, the steel wire rope 21 pulls the anti-reverse pulley body 2 to rotate. The anti-reverse pulley body 2 rotates stably on the support shaft 22. The support shaft 22 passes through the baffle 11 and rotates stably on the fixed seat 23. At the same time, when the steel wire rope 21 rotates, it will drive the transmission sleeve 32 of the monitoring mechanism 3 to rotate using friction. The transmission sleeve 32 is stably driven by the steel wire rope 21 in conjunction with the bearing 310. The bearing 310 is stably installed in the through groove 39 of the fixed bracket 31. At the same time, the transmission sleeve 32, in conjunction with the transmission belt 34, the first transmission wheel 33 and the second transmission wheel 35, drives the transmission rod 38 to rotate. The transmission rod 38 rotates stably on the support seat 36 and drives the end of the rotating shaft of the rotary encoder 37 to rotate, so that the rotary encoder 37 can identify the rotation state of the anti-reverse pulley body 2. In this way, it can quickly provide early warning when the anti-reverse pulley body 2 is in an abnormal situation caused by mechanical jamming, mechanical wear, or damage to the bearing 310.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

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