Safety tongs reliability detection tool

Abstract

The utility model discloses a safety tongs reliability detection tool, and relates to the field of elevator braking, and the safety tongs reliability detection tool comprises a test plate, an electromagnet is installed on the test plate, the lower end of the electromagnet is connected with a movable plate, a limiting block is installed at the lower part of the electromagnet on the test plate, and the inner side of the limiting block is provided with a moving groove. A mounting groove is formed in the position, located in the moving groove, of the inner side of the limiting block, a guide rail is arranged in the mounting groove, a transverse moving groove is formed in the lower portion of the movable plate, a limiting bolt is movably installed in the transverse moving groove, and the movable plate is connected with a brake roller through the limiting bolt. Rapid braking can be carried out through friction force between the brake roller and the guide rail; the electromagnet can be controlled to be quickly powered on and powered off through the control case, the power-on and power-off frequency counter can record the power-on and power-off frequency and is used for knowing the overall service life, and the execution frequency of quick braking and the braking effect can be known through the first execution frequency counter and the second execution frequency counter.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevator braking, in particular to safety gear reliability detection tool. BACKGROUND

[0002] The elevator is a vertical lift powered by a motor, equipped with a box-shaped cabin, used for multi-storey building passenger or cargo transportation, and is a fixed lifting device serving a specified floor. The vertical lifting elevator has a car running between at least two vertical or inclined angle less than 15° rigid guide rails. The elevator is mainly composed of a traction machine, guide rails, counterweight devices, safety devices (such as speed limiters, safety gears and buffers, etc.), signal control systems, car and hall doors, etc. These components are respectively installed in the shaft of the building and the machine room, and usually use steel wire rope friction drive. The steel wire rope is wound around the traction sheave, and the two ends are connected to the car and the counterweight, respectively. The motor drives the traction sheave to make the car ascend and descend. The elevator requires safety, reliability, high conveying efficiency, accurate leveling and comfortable ride, etc.

[0003] At present, elevator companies usually directly ship the installed safety gears without detection, and then adjust the safety gears on site by the installation personnel to ensure accuracy. There is no detection device to detect the service life of the elevator beam safety gear. Therefore, the installation time is long at the later stage, and the reliability of the elevator operation is poor. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the service life of the elevator beam safety gear cannot be detected, the safety gear reliability detection tool is provided.

[0005] The safety gear reliability detection tool provided by the present application adopts the following technical scheme:

[0006] The test plate is provided with an electromagnet, the lower end of the electromagnet is connected with a movable plate, a limit block is installed on the lower part of the electromagnet on the test plate, a moving groove is formed in the inner side of the limit block, an installation groove is formed in the inner side of the limit block inside the moving groove, a guide rail is arranged in the installation groove, a horizontal moving groove is formed in the lower part of the movable plate, a limit bolt is movably installed in the horizontal moving groove, and the movable plate is connected with a brake roller through the limit bolt.

[0007] By adopting the above technical scheme, the guide rail is installed in the installation groove. In normal state, the electromagnet is powered on, the movable plate is pushed downward, and the brake roller is driven downward. At this time, the brake roller and the guide rail are not in contact. When the power is cut off or the guide rail falls rapidly, the electromagnet is cut off, the spring is arranged inside, the brake roller moves upward rapidly, and the brake roller is in contact with the guide rail. The friction force between the brake roller and the guide rail can be used for rapid braking.

[0008] Preferably, the moving slot is arranged obliquely, the right upper to lower distance of the moving slot gradually increases from the mounting slot, and one end of the limiting bolt is located inside the moving slot.

[0009] By adopting the above technical scheme, when the brake roller moves upward quickly, the brake roller is in contact with the guide rail through the moving slot, and the brake roller can be quickly braked through the friction between the brake roller and the guide rail.

[0010] Preferably, two vertical moving slots are arranged on the movable plate, a connecting bolt is arranged on the limiting block, and the connecting bolt is located inside the vertical moving slot.

[0011] By adopting the above technical scheme, when the electromagnet is powered on, the vertical moving slot facilitates the downward movement of the movable plate, and the movable plate can be limited at the same time.

[0012] Preferably, a pushing plate is movably arranged inside the mounting slot on the limiting block, a pushing bolt is arranged on the limiting block, and one end of the pushing bolt is rotatably connected to the middle of the pushing plate.

[0013] By adopting the above technical scheme, the pushing plate can be moved by rotating the pushing bolt, and the pushing plate is in contact with the side surface of the guide rail through the ball, thereby limiting the guide rail.

[0014] Preferably, a limiting hole is arranged on one side of the limiting block, a limiting column is arranged on one side of the pushing plate, and the limiting column is located inside the limiting hole.

[0015] By adopting the above technical scheme, when the pushing plate is moved by rotating the pushing bolt, the pushing plate can be moved more stably by the cooperation of the limiting column and the limiting hole, and the pushing plate can be kept in alignment.

[0016] Preferably, an installation hole is arranged on the surface of the pushing plate, a ball is rotatably arranged inside the installation hole, and the pushing plate is in contact with the side surface of the guide rail through the ball.

[0017] By adopting the above technical scheme, the pushing plate is in contact with the side surface of the guide rail through the ball, thereby limiting the guide rail, and the distance between the brake stop surface of the guide rail and the brake roller can be kept consistent by abutting one end of the guide rail to the inner side of the mounting slot through the pushing plate.

[0018] Preferably, a control case is arranged on one side of the test plate, a first execution frequency counter and a second execution frequency counter are arranged on the test plate, and an on-off frequency counter is also arranged on the test plate.

[0019] By adopting the technical scheme, the electromagnet can be controlled to be turned on and off quickly by controlling the machine case, the on-off times counter can record the on-off times to understand the service life of the whole, and the first execution times counter and the second execution times counter can understand the execution times of the quick braking and the braking effect.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. The present application can control the electromagnet to be turned off when the power is turned off or the guide rail is quickly lowered, and the spring is arranged inside, the brake roller is quickly moved upward and contacted with the guide rail, and the friction between the brake roller and the guide rail can be quickly braked; the electromagnet can be controlled to be turned on and off quickly by controlling the machine case, the on-off times counter can record the on-off times to understand the service life of the whole, and the first execution times counter and the second execution times counter can understand the execution times of the quick braking and the braking effect;

[0022] 2. The present application can move the pushing plate by rotating the pushing bolt, the pushing plate is attached to the side surface of the guide rail through the ball, and the guide rail is limited, and the end of the guide rail is attached to the inside of the mounting groove by the pushing plate, so that the distance between the brake stopping surface of the guide rail and the brake roller is kept consistent, so that it can adapt to guide rails of different thicknesses. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The whole structure of the safety clamp reliability detection tooling of the embodiment of the present application is shown in the schematic diagram;

[0024] Figure 2 The schematic diagram of the main body of the embodiment of the present application is shown in the schematic diagram;

[0025] Figure 3 The schematic diagram of the main body of the embodiment of the present application is shown in the schematic diagram;

[0026] Figure 4 The schematic diagram of the main body of the embodiment of the present application is shown in the schematic diagram;

[0027] Figure 5 The schematic diagram of the main body of the embodiment of the present application is shown in the schematic diagram;

[0028] Figure 6 The schematic diagram of the main body of the embodiment of the present application is shown in the schematic diagram;

[0029] Figure markings: 1. Test board; 2. First execution count counter; 3. Power on and off count counter; 4. Second execution count counter; 5. Electromagnet; 6. Limit block; 7. Moving slot; 8. Mounting slot; 9. Movable plate; 10. Vertical moving slot; 11. Connecting bolt; 12. Horizontal moving slot; 13. Limit bolt; 14. Brake roller; 15. Ball; 16. Guide rail; 17. Push plate; 18. Mounting hole; 19. Limit column; 20. Limit hole; 21. Push bolt; 22. Control chassis. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-6 This application is described in further detail.

[0031] The embodiment of the present application discloses a safety clamp reliability detection tool, including a test plate 1, an electromagnet 5 is installed on the test plate 1, and the lower end of the electromagnet 5 is connected to a movable plate 9. Under normal conditions, the electromagnet 5 can be energized to push the movable plate 9 to move downward. A limit block 6 is installed at the lower part of the electromagnet 5 on the test plate 1, and a movable groove 7 is provided on the inner side of the limit block 6. One end of the limit stud 13 can move inside the movable groove 7 to drive the brake roller 14 to move. The inner side of the limit block 6 is provided with a mounting groove 8 inside the movable groove 7, and a guide rail 16 is provided inside the mounting groove 8. A transverse movable groove 12 is provided at the lower part of the movable plate 9. When one end of the limit stud 13 moves inside the movable groove 7, the other end can move inside the transverse movable groove 12. A limit bolt 1 is installed inside the transverse movable groove 12. 3. The movable plate 9 is connected to the brake roller 14 through a limiting bolt 13. The movable groove 7 is arranged obliquely, and the distance from the upper right to the lower side of the movable groove 7 to the mounting groove 8 gradually increases. One end of the limiting bolt 13 is located inside the movable groove 7. Two vertical movable grooves 10 are provided on the movable plate 9. A connecting bolt 11 is installed on the limiting block 6. The connecting bolt 11 is located inside the vertical movable groove 10. By installing the guide rail 16 inside the mounting groove 8, under normal circumstances, the electromagnet 5 is energized to push the movable plate 9 to move downward, driving the brake roller 14 to move downward. At this time, there is no contact between the brake roller 14 and the guide rail 16. When the power is cut off by control or the guide rail 16 falls rapidly, the electromagnet 5 is de-energized, and a spring is provided inside. The brake roller 14 moves upward rapidly and contacts the guide rail 16. Rapid braking can be performed through the friction between the brake roller 14 and the guide rail 16.

[0032] Please refer to Figures 3 to 6The push plate 17 is movably installed on the limiting block 6 inside the installation groove 8. The push bolt 21 is installed on the limiting block 6. One end of the push bolt 21 is rotatably connected to the middle part of the push plate 17. The limiting hole 20 is formed on one side of the limiting block 6 in the guide rail 16. The limiting column 19 is installed on one side of the push plate 17. The limiting column 19 is inside the limiting hole 20. The installation hole 18 is formed on the surface of the push plate 17. The ball 15 is rotatably installed in the installation hole 18. The push plate 17 is attached to the side surface of the guide rail 16 through the ball 15. The push plate 17 is attached to the side surface of the guide rail 16 through the ball 15. The guide rail 16 is limited. The one end of the guide rail 16 is attached to the inside of the installation groove 8 through the push plate 17. The distance between the brake stop surface of the guide rail 16 and the brake roller 14 can be kept consistent.

[0033] Please refer to Figure 1 and Figure 2 The control cabinet 22 is installed on one side of the test plate 1. The first execution frequency counter 2 and the second execution frequency counter 4 are installed on the test plate 1. The on-off frequency counter 3 is also installed on the test plate 1. The electromagnetic iron 5 can be controlled to quickly turn on and off through the control cabinet 22. The on-off frequency counter 3 can record the on-off frequency, which can be used to understand the overall service life. The first execution frequency counter 2 and the second execution frequency counter 4 can be used to understand the execution frequency of the quick brake and the braking effect.

[0034] The implementation principle of the safety clamp reliability detection tool is that the guide rail 16 is installed inside the installation groove 8. In the normal state, the electromagnetic iron 5 is powered on. The movable plate 9 is moved downward, driving the brake roller 14 to move downward. At this time, the brake roller 14 and the guide rail 16 are not in contact. When the control is turned off or the guide rail 16 quickly drops, the electromagnetic iron 5 is powered off. The spring is arranged inside. The brake roller 14 quickly moves upward and contacts the guide rail 16. The friction between the brake roller 14 and the guide rail 16 can be used for quick braking. The electromagnetic iron 5 can be controlled to quickly turn on and off through the control cabinet 22. The on-off frequency counter 3 can record the on-off frequency, which can be used to understand the overall service life. The first execution frequency counter 2 and the second execution frequency counter 4 can be used to understand the execution frequency of the quick brake and the braking effect. When the guide rail 16 is installed, the push plate 17 can be moved by rotating the push bolt 21. The push plate 17 is attached to the side surface of the guide rail 16 through the ball 15. The guide rail 16 is limited. The one end of the guide rail 16 is attached to the inside of the installation groove 8 through the push plate 17. The distance between the brake stop surface of the guide rail 16 and the brake roller 14 can be kept consistent, so that it can adapt to guide rails 16 of different thicknesses and improve the overall use effect.

[0035] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. Safety gear reliability testing tool, characterized by: The invention comprises a test plate (1), an electromagnet (5) is installed on the test plate (1), the lower end of the electromagnet (5) is connected to a movable plate (9), a limit block (6) is installed on the test plate (1) below the electromagnet (5), a movable groove (7) is provided on the inner side of the limit block (6), a mounting groove (8) is provided on the inner side of the limit block (6) inside the movable groove (7), a guide rail (16) is provided inside the mounting groove (8), a transverse movable groove (12) is provided on the lower part of the movable plate (9), a limit bolt (13) is movably installed inside the transverse movable groove (12), and the movable plate (9) is connected to a brake roller (14) via the limit bolt (13).

2. The safety gear reliability testing tool according to claim 1, characterized in that: The movable groove (7) is arranged obliquely, and the distance from the movable groove (7) to the mounting groove (8) gradually increases from the upper right to the lower right, and one end of the limiting bolt (13) is located inside the movable groove (7).

3. The safety gear reliability testing tool according to claim 2, characterized in that: Two vertical movement grooves (10) are provided on the movable plate (9), and a connecting bolt (11) is installed on the limit block (6), and the connecting bolt (11) is located inside the vertical movement grooves (10).

4. The safety gear reliability testing tool according to claim 1, characterized in that: A push plate (17) is movably mounted on the limit block (6) inside the mounting groove (8), and a push bolt (21) is mounted on the limit block (6), one end of the push bolt (21) is rotatably connected to the middle of the push plate (17).

5. The safety gear reliability testing tool according to claim 4, characterized in that: A limiting hole (20) is provided on one side of the guide rail (16) on the limiting block (6), and a limiting column (19) is installed on one side of the pushing plate (17), wherein the limiting column (19) is located inside the limiting hole (20).

6. The safety gear reliability testing tool according to claim 5, characterized in that: The surface of the push plate (17) is provided with a mounting hole (18), a ball (15) is rotatably mounted inside the mounting hole (18), and the push plate (17) is fitted with the side of the guide rail (16) through the ball (15).

7. The safety gear reliability testing tool according to claim 6, characterized in that: A control box (22) is installed on one side of the test board (1), a first execution number counter (2) and a second execution number counter (4) are installed on the test board (1), and a power on / off number counter (3) is also installed on the test board (1).

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