Elevator traction sheave wear degree detection device with magnetic attraction fixing structure

By designing a magnetic fixing structure on the elevator traction sheave, the safety hazard to the user's eyes during the laser rangefinder detection process is solved, and safe and reliable wear detection is achieved.

CN224279435UActive Publication Date: 2026-05-26XIAN SPECIAL EQUIP INSPECTION INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAN SPECIAL EQUIP INSPECTION INST
Filing Date
2025-08-02
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing laser rangefinders pose a safety hazard when detecting wear on elevator traction wheels, as the laser may shine into the user's eyes.

Method used

A wear detection device for elevator traction wheels with a magnetic fixing structure was designed. The laser rangefinder is fixed to the elevator traction wheel using a magnetic component and a drive component. Electricity is conducted through a guide shaft and a conductive plate to ensure that the laser rangefinder does not shine into the user's eyes during the detection process.

Benefits of technology

This effectively avoids eye damage to users when using laser rangefinders, ensuring the safety and reliability of the detection process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an elevator traction sheave wear degree detection device with a magnetic attraction fixing structure, which relates to the technical field of elevator traction sheave wear degree detection devices, and comprises an elevator traction sheave equipment body, a protection mechanism is arranged below the elevator traction sheave equipment body, and the protection mechanism comprises a rectangular box. The inner top wall of the rectangular box is fixedly connected with two first stress springs, the bottom ends of the two first stress springs are jointly and fixedly connected with a lifting plate, the inner wall of the lifting plate is fixedly connected with a guide shaft, the inner wall of the rectangular box is fixedly connected with two sets of second stress springs, and the number of each set of second stress springs is two. And the right ends of the two groups of second stress springs are jointly and fixedly connected with a first conductive plate. According to the elevator traction sheave wear degree detection device with the magnetic attraction fixing structure, wear degree measurement work can be conducted on the elevator traction sheave equipment body through the laser range finder, and the problem that when equipment is used, a laser column is likely to irradiate the eyes of a user, and the eyes of the user are hurt is solved.
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Description

Technical Field

[0001] This utility model relates to a wear detection device, specifically an elevator traction sheave wear detection device with a magnetic fixing structure, belonging to the technical field of elevator traction sheave wear detection devices. Background Technology

[0002] Elevator traction sheave wear detection devices are important tools for ensuring elevator safety. These include industrial endoscopes, vernier calipers, and ultrasonic flaw detectors, which monitor wear from different dimensions. Among them, laser rangefinders are widely used. They accurately capture subtle changes in rope groove dimensions in a non-contact manner, quickly generate data reports, provide efficient quantitative basis for wear judgment, and improve the scientific nature of detection.

[0003] Currently, existing laser rangefinders emit laser light controlled by buttons. However, when inspecting the wear of elevator traction sheaves, the presence of steel cables above and to the sides limits the inspection to below, causing the laser to be emitted upwards. This poses a significant safety hazard if the user moves the rangefinder. Therefore, this paper proposes an elevator traction sheave wear detection device with a magnetic fixing structure. Utility Model Content

[0004] This invention proposes an elevator traction wheel wear detection device with a magnetic fixing structure to solve the problem of significant safety hazards posed by existing laser rangefinders.

[0005] This utility model is achieved through the following technical solution: an elevator traction wheel wear detection device with a magnetic fixing structure, including an elevator traction wheel equipment body, and a protective mechanism is provided below the elevator traction wheel equipment body;

[0006] The protective mechanism includes a rectangular box. Two first force springs are fixedly connected to the inner top wall of the rectangular box. A lifting plate is fixedly connected to the bottom ends of the two first force springs. A guide shaft is fixedly connected to the inner wall of the lifting plate. Two sets of second force springs are fixedly connected to the inner wall of the rectangular box. Each set of second force springs has two springs. A first conductive plate is fixedly connected to the right ends of the two sets of second force springs.

[0007] A magnetic suction component and a drive component are provided below the elevator traction wheel equipment body.

[0008] A fixed box is provided below the elevator traction sheave equipment body. A sliding plate is slidably connected inside the fixed box. A battery compartment is fixedly connected to the inner wall of the sliding plate. Two hydraulic rods are fixedly connected to the upper surface of the sliding plate. The telescopic ends of the two hydraulic rods are fixedly connected to a connecting plate. The upper surface of the connecting plate is fixedly connected to the bottom surface of the rectangular box. The hydraulic rods and the first conductive plate are both electrically connected to the battery compartment through wires.

[0009] A laser rangefinder and a second conductive plate are fixedly connected to the upper surface of the sliding plate, and the second conductive plate is electrically connected to the laser rangefinder through a wire.

[0010] Two fixing plates are fixedly connected to the left side of the first conductive plate, and the inner walls of the two fixing plates are rotatably connected to a rotating shaft.

[0011] The magnetic suction assembly includes a mounting plate, the two sides of which are fixedly connected to the outer surface of the elevator traction sheave equipment body. Two return springs are fixedly connected to the inner wall of the mounting plate, and each of the two return springs has a retaining pin fixedly connected to one end close to the other. A mounting frame is provided inside the mounting plate, the front of which is fixedly connected to the back of the fixing box. A fixing block is fixedly connected to the inner wall of the mounting frame, and an electromagnet is fixedly connected to the inner wall of the fixing block. The electromagnet is electrically connected to the battery compartment through a wire, and each retaining pin is engaged inside the mounting frame.

[0012] The drive assembly includes two threaded shafts, the outer surface of each threaded shaft being rotatably connected to the inner wall of the fixed box. Two drive motors are arranged in front of the fixed box, and the output end of each drive motor is fixedly connected to the end of the threaded shaft near the drive motor. The outer surfaces of the two threaded shafts are threadedly connected to the inner wall of the sliding plate. Each drive motor is electrically connected to the battery compartment through a wire.

[0013] This utility model provides an elevator traction sheave wear detection device with a magnetic fixing structure, which has the following beneficial effects:

[0014] This elevator traction sheave wear detection device with a magnetic fixing structure uses a guide shaft. The guide shaft moves upwards and presses against the grooves on the surface of the elevator traction sheave, generating thrust. This thrust pushes the rotation axis to move the position of the first conductive plate, bringing its surface into contact with the surface of the second conductive plate. At this point, the first conductive plate guides the power from the battery compartment to the second conductive plate, which then transmits the power to a laser rangefinder via wires. The laser rangefinder can then be used to measure the wear of the elevator traction sheave, effectively avoiding the problem of the laser beam shining into the user's eyes and causing eye damage during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the electromagnet structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the hydraulic rod structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the first conductive plate structure of this utility model.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Elevator traction sheave equipment body;

[0021] 2. Protective mechanism; 201. Fixed box; 202. Sliding plate; 203. Battery compartment; 204. Second conductive plate; 205. Connecting plate; 206. Laser rangefinder; 207. Rectangular box; 208. Guide shaft; 209. First force-bearing spring; 210. Lifting plate; 211. Second force-bearing spring; 212. Fixed plate; 213. First conductive plate; 214. Rotating shaft; 215. Hydraulic rod;

[0022] 3. Magnetic suction assembly; 301. Mounting plate; 302. Return spring; 303. Clip; 304. Mounting frame; 305. Fixing block; 306. Electromagnet;

[0023] 4. Drive components; 401. Drive motor; 402. Threaded shaft. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0025] Please see Figures 1-4This utility model provides an elevator traction sheave wear detection device with a magnetic fixing structure, including an elevator traction sheave device body 1. A protective mechanism 2 is provided below the elevator traction sheave device body 1. The protective mechanism 2 includes a rectangular box 207. Two first force springs 209 are fixedly connected to the inner top wall of the rectangular box 207. The bottom ends of the two first force springs 209 are fixedly connected to a lifting plate 210. A guide shaft 208 is fixedly connected to the inner wall of the lifting plate 210. Two sets of second force springs 211 are fixedly connected to the inner wall of the rectangular box 207. Each set of second force springs 211 consists of two springs. The right ends of the two sets of second force springs 211 are fixedly connected to a first conductive plate. 213. A fixed box 201 is provided below the elevator traction sheave equipment body 1. A sliding plate 202 is slidably connected inside the fixed box 201. A battery compartment 203 is fixedly connected to the inner wall of the sliding plate 202. Two hydraulic rods 215 are fixedly connected to the upper surface of the sliding plate 202. The telescopic ends of the two hydraulic rods 215 are fixedly connected to a connecting plate 205. The upper surface of the connecting plate 205 is fixedly connected to the bottom surface of the rectangular box 207. The hydraulic rods 215 and the first conductive plate 213 are electrically connected to the battery compartment 203 through wires. By providing the battery compartment 203, the battery compartment 203 can provide power for the operation of the equipment, while the operation of the hydraulic rods 215 can push the guide shaft 208 to move upward.

[0026] Please see Figure 3 A laser rangefinder 206 and a second conductive plate 204 are fixedly connected to the upper surface of the sliding plate 202. The second conductive plate 204 is electrically connected to the laser rangefinder 206 through a wire. By setting up the laser rangefinder 206, the wear degree of the groove on the surface of the elevator traction wheel equipment body 1 can be measured.

[0027] Please see Figure 3 and Figure 4 Two fixing plates 212 are fixedly connected to the left side of the first conductive plate 213. The inner walls of the two fixing plates 212 are rotatably connected to the rotating shaft 214. By setting the fixing plates 212, the fixing plates 212 can provide an installation position for the rotating shaft 214, and the rotating shaft 214 can reduce the friction force on the guide shaft 208 when it descends.

[0028] Please see Figure 1 and Figure 2A magnetic suction assembly 3 and a drive assembly 4 are provided below the elevator traction sheave equipment body 1. The magnetic suction assembly 3 includes a mounting plate 301, whose two sides are fixedly connected to the outer surface of the elevator traction sheave equipment body 1. Two return springs 302 are fixedly connected to the inner wall of the mounting plate 301. Each of the two return springs 302 has a retaining shaft 303 fixedly connected to one end of each spring that is close to the other. A mounting frame 304 is provided inside the mounting plate 301, and the front of the mounting frame 304 is fixedly connected to the fixed box 201. On the back, a fixing block 305 is fixedly connected to the inner wall of the mounting frame 304, and an electromagnet 306 is fixedly connected to the inner wall of the fixing block 305. The electromagnet 306 is electrically connected to the battery compartment 203 through a wire. Each retaining shaft 303 is engaged inside the mounting frame 304. With the electromagnet 306, the operation of the electromagnet 306 can attract two retaining shafts 303 to engage inside the mounting frame 304. When the electromagnet 306 is de-energized, the retaining shafts 303 will be reset under the action of the return spring 302.

[0029] Please see Figures 1-3 The drive assembly 4 includes two threaded shafts 402, the outer surface of which is rotatably connected to the inner wall of the fixed box 201. Two drive motors 401 are arranged in front of the fixed box 201. The output end of each drive motor 401 is fixedly connected to the end of the threaded shaft 402 near the drive motor 401. The outer surfaces of the two threaded shafts 402 are threadedly connected to the inner wall of the sliding plate 202. Each drive motor 401 is electrically connected to the battery compartment 203 through a wire. With the threaded shafts 402 and drive motors 401, the drive motors 401 can drive the threaded shafts 402 to rotate. Since the threaded shafts 402 and the sliding plate 202 are threadedly connected, the position of the sliding plate 202 can be adjusted.

[0030] In use, this utility model involves pushing the fixed box 201 and the mounting frame 304 towards the mounting plate 301, causing the mounting frame 304 to enter the mounting plate 301. At this time, the electromagnet 306 becomes magnetic, attracting the two locking shafts 303 to move towards the electromagnet 306. The two locking shafts 303 eventually engage with the inside of the mounting frame 304, thus connecting the fixed box 201 to the elevator traction sheave device body 1. Subsequently, the hydraulic rod 215 is controlled to operate, pushing the connecting plate 2. 05 and rectangular box 207 move upward, eventually pushing guide shaft 208 to contact the groove on the surface of elevator traction sheave equipment body 1. The thrust generated when guide shaft 208 moves upward and presses against the groove on the surface of elevator traction sheave equipment body 1 pushes rotating shaft 214 towards the position of first conductive plate 213. Rotating shaft 214 then transmits power to first conductive plate 213 through fixed plate 212, causing the surface of first conductive plate 213 to contact the surface of second conductive plate 204. At this time, first conductive plate 213 can... The power in the battery compartment 203 is guided to the second conductive plate 204, which in turn transmits the power to the laser rangefinder 206 via wires. The laser rangefinder 206 is used to measure the wear of the elevator traction wheel equipment body 1. After measuring one groove, the hydraulic rod 215 is reset. At this time, the guide shaft 208 will not contact the groove on the surface of the elevator traction wheel equipment body 1. Therefore, the guide shaft 208 will be reset under the action of the first force spring 209, and the first conductive plate 213 will be reset under the action of the second force spring 211. At this time, the laser rangefinder 206 will automatically disconnect. Then, the drive motor 401 is controlled to drive the threaded shaft 402 to rotate. By using the threaded connection between the threaded shaft 402 and the sliding plate 202, the position of the laser rangefinder 206 can be adjusted to measure the next groove. The laser rangefinder 206 can only be opened in the working state, which effectively avoids the problem that the laser beam may easily shine into the user's eyes and cause damage to the user's eyes when the equipment is in use.

[0031] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An elevator traction sheave wear detection device with a magnetic fixing structure, comprising an elevator traction sheave device body (1), characterized in that: A protective mechanism (2) is provided below the elevator traction wheel equipment body (1). The protective mechanism (2) includes a rectangular box (207). Two first force springs (209) are fixedly connected to the inner top wall of the rectangular box (207). The bottom ends of the two first force springs (209) are fixedly connected to a lifting plate (210). A guide shaft (208) is fixedly connected to the inner wall of the lifting plate (210). Two sets of second force springs (211) are fixedly connected to the inner wall of the rectangular box (207). Each set of second force springs (211) consists of two springs. The right ends of the two sets of second force springs (211) are fixedly connected to a first conductive plate (213). A magnetic suction component (3) and a drive component (4) are provided below the elevator traction wheel equipment body (1).

2. The elevator traction sheave wear detection device with magnetic fixing structure according to claim 1, characterized in that: A fixed box (201) is provided below the elevator traction wheel equipment body (1). A sliding plate (202) is slidably connected inside the fixed box (201). A battery compartment (203) is fixedly connected to the inner wall of the sliding plate (202). Two hydraulic rods (215) are fixedly connected to the upper surface of the sliding plate (202). The telescopic ends of the two hydraulic rods (215) are fixedly connected to a connecting plate (205). The upper surface of the connecting plate (205) is fixedly connected to the bottom surface of the rectangular box (207). The hydraulic rods (215) and the first conductive plate (213) are both electrically connected to the battery compartment (203) through wires.

3. The elevator traction sheave wear detection device with magnetic fixing structure according to claim 2, characterized in that: The upper surface of the sliding plate (202) is fixedly connected to a laser rangefinder (206) and a second conductive plate (204), and the second conductive plate (204) is electrically connected to the laser rangefinder (206) through a wire.

4. The elevator traction sheave wear detection device with magnetic fixing structure according to claim 1, characterized in that: Two fixing plates (212) are fixedly connected to the left side of the first conductive plate (213), and the inner walls of the two fixing plates (212) are rotatably connected to a rotating shaft (214).

5. The elevator traction sheave wear detection device with magnetic fixing structure according to claim 2, characterized in that: The magnetic suction assembly (3) includes a mounting plate (301). The two sides of the mounting plate (301) are fixedly connected to the outer surface of the elevator traction wheel equipment body (1). Two return springs (302) are fixedly connected to the inner wall of the mounting plate (301). Each of the two return springs (302) is fixedly connected to a retaining pin (303) at one end close to the other. A mounting frame (304) is provided inside the mounting plate (301). The front of the mounting frame (304) is fixedly connected to the back of the fixing box (201). A fixing block (305) is fixedly connected to the inner wall of the mounting frame (304). An electromagnet (306) is fixedly connected to the inner wall of the fixing block (305). The electromagnet (306) is electrically connected to the battery compartment (203) through a wire. Each retaining pin (303) is snapped into the inside of the mounting frame (304).

6. The elevator traction sheave wear detection device with magnetic fixing structure according to claim 2, characterized in that: The drive assembly (4) includes two threaded shafts (402), the outer surface of each threaded shaft (402) is rotatably connected to the inner wall of the fixed box (201), two drive motors (401) are arranged in front of the fixed box (201), the output end of each drive motor (401) is fixedly connected to one end of the threaded shaft (402) near the drive motor (401), the outer surfaces of the two threaded shafts (402) are threadedly connected to the inner wall of the sliding plate (202), and each drive motor (401) is electrically connected to the battery compartment (203) through a wire.