Elevator traction sheave groove abrasion detection device

Abstract

The utility model relates to an elevator traction sheave groove wear detection device, comprising a housing comprising a main housing and a cover plate; the pressure sensor is arranged in the main shell; the roller carrier is arranged between the main shell and the cover plate and extends into the main shell; the connecting sleeve is arranged between the pressure sensor and the roller carrier, and a secondary spring is arranged in the connecting sleeve; the main spring is arranged between the main shell and the roller carrier; and the rollers are arranged between the roller carriers through bearings. Through the arrangement of the pressure sensor, the secondary spring and the connecting sleeve, the effect of measuring the elastic force of the secondary spring is achieved, so that the roller carrier moves towards the direction close to the traction wheel under the action of the elastic force of the main spring after the traction wheel is abraded, and the secondary spring is stressed and compressed to generate larger elastic force; therefore, the effect of detecting the abrasion degree of the traction sheave through the pressure value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator traction detection, in particular to an elevator traction wheel groove wear detection device. Background Art

[0002] The traction sheave is the rope pulley on the traction machine. It is the device that transmits the traction power of the elevator. It transmits power by using the friction between the traction wire rope and the rope groove on the traction wheel rim.

[0003] After the elevator has been running for a certain period of time, the traction sheave will be worn, so the elevator needs to be inspected regularly to ensure safe operation. The traditional elevator traction sheave groove detection method generally uses manual visual inspection, depth gauge or wheel groove wear contact measuring head to perform specific position detection on the uneven wear degree of the wheel groove. In the above methods, both manual visual inspection and depth gauge have problems such as inaccurate measurement and low detection efficiency. Although precision equipment such as wheel groove wear contact measuring head can measure accurately enough, the device has high purchase cost and is too delicate to be damaged during elevator movement. The above methods are all suitable for detection after the elevator is stopped, and it is impossible to perform real-time detection of the traction sheave. Therefore, an elevator traction sheave groove wear detection device is proposed. Utility Model Content

[0004] Based on the above description, the utility model provides an elevator traction wheel groove wear detection device to solve the problem that the existing detection method cannot perform real-time monitoring.

[0005] The utility model provides a technical solution to the above-mentioned technical problem as follows: an elevator traction wheel groove wear detection device, comprising: a shell, the shell comprising a main shell and a cover plate, a pressure sensor is arranged inside the main shell, a roller frame is arranged between the main shell and the cover plate, and extends to the inside of the main shell, a connecting sleeve is arranged between the pressure sensor and the roller frame, and a secondary spring is arranged inside, a main spring is arranged between the main shell and the roller frame, and a roller is arranged between the roller frames through a bearing.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the main housing includes a rectangular block, and a sensor mounting groove and a rectangular hole are provided on opposite sides of the rectangular block, and a pressure sensor is provided inside the sensor mounting groove.

[0008] Furthermore, a protrusion is provided on the inner wall of the rectangular hole away from the sensor installation groove, and a support frame is provided on the outer surface of the rectangular block below.

[0009] Furthermore, the roller frame includes an extension plate, and movable blocks are provided on opposite sides of the extension plate, and a locking groove is provided on a side of the movable block close to the main spring.

[0010] Furthermore, a semi-cylinder is provided on a side of the movable block close to the roller, and a diameter of the semi-cylinder is smaller than a diameter of the connecting sleeve.

[0011] Furthermore, a positioning column and a positioning hole are respectively provided on one opposite side of the movable block, and a positioning column and a positioning hole are respectively provided on one opposite side of the semi-cylinder, and the positioning column extends to the inside of the positioning hole.

[0012] Furthermore, a connecting sleeve is sleeved on the outside of the semi-cylinder, the connecting sleeve is in contact with the pressure sensor, and a secondary spring in contact with the semi-cylinder is arranged inside the connecting sleeve.

[0013] Furthermore, a main spring is sleeved on the outside of the protrusion, and the other end of the main spring extends to the inside of the locking groove.

[0014] Furthermore, the cover plate is an N-shaped frame, and there is a gap between the cover plate and the main shell.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The utility model is provided with a main housing, a cover plate, a main spring, a roller frame, a roller and other components. Through the matching relationship between the roller frame and the cover plate, the roller frame can only move along the direction of the rectangular hole, and under the action of the elastic force of the main spring, the roller is always in contact with the surface of the traction wheel. When the traction wheel is worn, the roller still maintains a contact state under the action of the elastic force of the main spring;

[0017] 2. By setting up the pressure sensor, secondary spring and connecting sleeve, the effect of measuring the elastic force of the secondary spring is achieved, so that after the traction wheel is worn, the roller frame is displaced toward the direction close to the traction wheel under the action of the elastic force of the main spring, that is, the semi-cylinder moves toward the direction close to the pressure sensor. At this time, the secondary spring is compressed to produce a greater elastic force, which is displayed by the pressure sensor, thereby achieving the effect of detecting the degree of wear of the traction wheel by the pressure value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an elevator traction sheave groove wear detection device provided by an embodiment of the utility model;

[0019] Figure 2 for Figure 1 Structural cross-sectional view of

[0020] Figure 3 for Figure 2 A structural diagram from another perspective;

[0021] Figure 4 This is a schematic diagram of the structure of the main housing in an embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the roller frame in the embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the use status of the detection device in the embodiment of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Main housing; 11. Rectangular block; 12. Sensor mounting slot; 13. Rectangular hole; 14. Bump; 15. Support frame; 2. Roller frame; 21. Extension plate; 22. Movable block; 23. Semi-cylinder; 24. Positioning hole; 25. Positioning column; 26. Positioning slot; 3. Roller; 4. Cover plate; 5. Pressure sensor; 6. Connecting sleeve; 7. Secondary spring; 8. Main spring. DETAILED DESCRIPTION

[0026] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0028] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0029] See also Figure 1-Figure 4 , an elevator traction wheel groove wear detection device, comprising:

[0030] The housing comprises a main housing 1 and a cover plate 4, wherein the cover plate 4 is an N-shaped frame, and there is a gap between the cover plate 4 and the main housing 1;

[0031] The main housing 1 comprises a rectangular block 11, and a sensor mounting groove 12 and a rectangular hole 13 are provided on opposite sides of the rectangular block 11. A pressure sensor 5 is provided inside the sensor mounting groove 12, and a convex block 14 is provided on the inner wall of the rectangular hole 13 away from the sensor mounting groove 12. A support frame 15 is provided on the outer surface of the rectangular block 11 below;

[0032] Based on the above, the gap between the main shell 1 and the cover plate 4 allows the roller frame 2 to extend to the outside of the main shell 1, and the cover plate 4 plays a limiting role, making it impossible for the roller frame 2 to be separated from the main shell 1. The setting of the protrusion 14 makes the position of the main spring 8 relatively fixed, avoiding the position of the main spring 8 from being offset.

[0033] like Figure 2 and Figure 3 As shown, the pressure sensor 5 (a sensor of model Burster8435-6005 may be used) is arranged inside the main housing 1;

[0034] Based on the above, the pressure sensor 5 plays a role in measuring pressure, and indirectly reflects the degree of wear of the traction sheave through the pressure measurement.

[0035] like Figure 1-Figure 3 as well as Figure 5 As shown, the roller frame 2 is disposed between the main housing 1 and the cover plate 4 and extends to the interior of the main housing 1;

[0036] The roller frame 2 includes an extension plate 21, and a movable block 22 is provided on the opposite side of the extension plate 21. A locking groove 26 is provided on the side of the movable block 22 close to the main spring 8. A semi-cylinder 23 is provided on the side of the movable block 22 close to the roller 3. The diameter of the semi-cylinder 23 is smaller than the diameter of the connecting sleeve 6. A positioning column 25 and a positioning hole 24 are respectively provided on the opposite side of the movable block 22, and a positioning column 25 and a positioning hole 24 are respectively provided on the opposite side of the semi-cylinder 23. The positioning column 25 extends to the inside of the positioning hole 24.

[0037] A roller 3, which is arranged between the roller frames 2 via a bearing;

[0038] Based on the above, the roller frame 2 and the roller 3 cooperate with each other so that the device can contact the traction wheel. The setting of the semi-cylinder 23 can fix the position of the connecting sleeve 6 and enable the roller frame 2 to squeeze the secondary spring 7 after movement.

[0039] like Figure 2-Figure 3As shown, a connecting sleeve 6 is arranged between the pressure sensor 5 and the roller frame 2, and a secondary spring 7 is arranged inside. The connecting sleeve 6 is sleeved on the outside of the semi-cylinder 23, and the connecting sleeve 6 is in contact with the pressure sensor 5. The connecting sleeve 6 is arranged inside with a secondary spring 7 in contact with the semi-cylinder 23;

[0040] A main spring 8, which is arranged between the main housing 1 and the roller frame 2;

[0041] Based on the above, the main spring 8 provides elastic force, so that the roller frame 2 and the roller 3 are always in contact with the traction wheel under the action of the elastic force, and they are still in contact with each other when the traction wheel is worn, and the connecting sleeve 6 and the secondary spring 7 cooperate with each other, so that the roller frame 2 squeezes the secondary spring 7 and applies an elastic force to the connecting sleeve 6. The elastic force is displayed by the pressure sensor 5, and the displayed value indirectly indicates the degree of wear of the traction wheel.

[0042] In actual use of this embodiment, the device is fixed by the support frame 15, and after fixing, the roller 3 is in contact with the surface of the traction wheel, and the main spring 8 is in a compressed state;

[0043] When the traction wheel is worn, the roller 3 moves toward the direction close to the traction wheel under the action of the elastic force of the main spring 8 to ensure that the roller 3 is always in contact with the surface of the traction wheel. In this process, the roller frame 2 is displaced and compresses the secondary spring 7, so that the secondary spring 7 generates elastic force and applies it to the pressure sensor 5 through the connecting sleeve 6. At this time, the pressure sensor 5 measures the pressure and transmits and displays the data. The greater the degree of wear of the traction wheel, the greater the value of the pressure sensor 5, and vice versa.

[0044] The wear detection device uses structures such as a roller frame 2, a main spring 8, a secondary spring 7, a connecting sleeve 6 and a pressure sensor 5, so that the degree of wear can be detected by the pressure sensor 5. The greater the pressure value, the greater the degree of wear. Compared with visual inspection and depth gauges, the device has accurate measurement and high efficiency. Compared with a wheel groove wear contact measuring head, the device has a simple structure, is not easy to damage, and can perform detection in real time.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator traction sheave groove wear detection device, characterized in that: include: A housing, comprising a main housing (1) and a cover plate (4); A pressure sensor (5) disposed inside the main housing (1); A roller frame (2) is arranged between the main housing (1) and the cover plate (4) and extends into the interior of the main housing (1); A connecting sleeve (6), which is arranged between the pressure sensor (5) and the roller frame (2) and has a secondary spring (7) arranged inside; A main spring (8) disposed between the main housing (1) and the roller frame (2); The roller (3) is arranged between the roller frames (2) via a bearing.

2. The elevator traction sheave groove wear detection device according to claim 1, characterized in that: The main housing (1) comprises a rectangular block (11), and a sensor mounting groove (12) and a rectangular hole (13) are provided on opposite sides of the rectangular block (11), and a pressure sensor (5) is provided inside the sensor mounting groove (12).

3. The elevator traction sheave groove wear detection device according to claim 2, characterized in that: A convex block (14) is provided on the inner wall of the rectangular hole (13) at a side away from the sensor installation groove (12), and a support frame (15) is provided on the outer surface of the rectangular block (11) below.

4. The elevator traction sheave groove wear detection device according to claim 3, characterized in that: The roller frame (2) comprises an extension plate (21), and a movable block (22) is provided on one opposite side of the extension plate (21). A locking groove (26) is provided on one side of the movable block (22) close to the main spring (8).

5. The elevator traction sheave groove wear detection device according to claim 4, characterized in that: A semi-cylinder (23) is provided on one side of the movable block (22) close to the roller (3), and the diameter of the semi-cylinder (23) is smaller than the diameter of the connecting sleeve (6).

6. The elevator traction sheave groove wear detection device according to claim 5, characterized in that: The movable block (22) is provided with a positioning column (25) and a positioning hole (24) on one side thereof, and the semi-cylinder (23) is provided with a positioning column (25) and a positioning hole (24) on one side thereof. The positioning column (25) extends into the interior of the positioning hole (24).

7. The elevator traction sheave groove wear detection device according to claim 5, characterized in that: The outer part of the semi-cylinder (23) is provided with a connecting sleeve (6), the connecting sleeve (6) is in contact with the pressure sensor (5), and the inner part of the connecting sleeve (6) is provided with a secondary spring (7) in contact with the semi-cylinder (23).

8. The elevator traction sheave groove wear detection device according to claim 4, characterized in that: A main spring (8) is sleeved on the outside of the protrusion (14), and the other end of the main spring (8) extends to the inside of the locking groove (26).

9. The elevator traction sheave groove wear detection device according to claim 1, characterized in that: The cover plate (4) is an N-shaped frame, and there is a gap between the cover plate (4) and the main shell (1).

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