Testing device of steel belt for elevator

Abstract

The utility model relates to the technical field of elevator steel belt testing, in particular to a testing device for an elevator steel belt, which comprises a testboard, the upper end inside the testboard is rotatably connected with a turntable, the lower end face of the turntable is fixedly connected with an inner and outer gear ring, the inner and outer gear ring is of an open structure, and the outer wall of a rotating shaft is fixedly connected with a gear meshed with the inner and outer gear ring; as the inner and outer gear rings are of an opening structure, when the opening of the inner and outer gear rings rotates to the gear, the gear rotates to the interior of the inner and outer gear rings along with the inner and outer gear rings, then the gear is matched with the inner and outer gear rings to drive the rotating disc to rotate anticlockwise, and the rotating disc drives the connecting rod to rotate in the sliding hole in the reverse direction; through continuous rotation of the gear, the gear cooperates with the inner and outer gear rings to drive the rotating disc to rotate in a reciprocating manner, and then the steel belt is driven to repeatedly surround the outer walls of the two rotating wheels, so that the bending fatigue of the steel belt is tested.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator steel belt testing, in particular to a testing device for elevator steel belts. Background Art

[0002] The new composite steel belt has a wear-resistant polyurethane surface and multiple high-strength steel wires wrapped in the inner layer. The polyurethane surface can provide sufficient friction and avoid direct contact between metals, which protects both the steel strands and the traction wheel. The steel strands inside the steel wire are arranged horizontally and evenly bear the tension, which greatly reduces the adverse working conditions caused by uneven force between the steel strands. After the steel belt is produced, it needs to be tested for bending fatigue before it can be shipped out of the factory, so a steel belt bending fatigue test device is needed to test the steel belt.

[0003] The existing elevator steel belt testing device fixes both ends of the steel belt when testing the bending fatigue of the steel belt, and then drives one end of the steel belt to swing back and forth, thereby testing the bending fatigue of the steel belt. However, when testing with the above device, only one point of the steel belt can be tested. Since the steel belt is wrapped around the roller when in use, the bending length of the steel belt is long, and the bending angle of the steel belt is large. Therefore, the bending fatigue test is only performed on one point of the steel belt, and the bending fatigue value of the steel belt cannot be accurately measured, resulting in an incorrect measured bending fatigue value of the steel belt. Utility Model Content

[0004] The utility model aims to provide a testing device for a steel belt used in an elevator, which has the characteristics of lengthening the bending length of the steel belt, increasing the bending angle of the steel belt, and accurately measuring the bending fatigue value of the steel belt.

[0005] To achieve the above object, the utility model provides the following technical solutions: a testing device for elevator steel belt, comprising a testing table, wherein the upper end of the inner part of the testing table is rotatably connected to a turntable, and the lower end surface of the turntable is fixedly connected to inner and outer gear rings, and the inner and outer gear rings are open structures;

[0006] The upper end surface of the test bench is rotatably connected to two rotating wheels distributed front and back;

[0007] A fixed plate is fixedly connected to the lower end of the inner part of the test bench, two sliding rods distributed front and back are fixedly connected between the left side wall of the fixed plate and the test bench, a moving block is slidably connected to the outer walls of the two sliding rods, a rotating shaft is rotatably connected to the upper end surface of the moving block, and a gear meshing with the inner and outer gear rings is fixedly connected to the outer wall of the rotating shaft;

[0008] A sliding hole is penetrated through the upper end surface of the test bench, and a connecting rod passing through the sliding hole and extending to the top of the test bench is fixedly connected to the upper end surface of the turntable. A moving rod is slidably connected to the upper end surface of the test bench, and the other ends of the connecting rod and the moving rod are fixedly connected to moving plates, and the upper end surfaces of the two moving plates are provided with fixing mechanisms.

[0009] In order to fix the steel belt, as a preferred testing device for the steel belt for an elevator of the utility model, the fixing mechanism includes a first slide groove opened on the upper end surface of a movable plate, the upper end surface of the movable plate is slidably connected to two clamping plates distributed front and rear, the lower end surfaces of the two clamping plates are fixedly connected to a first sliding block matching the first slide groove, and the interior of the first slide groove is rotatably connected to a screw rod threadedly connected to the first sliding block.

[0010] In order to drive the rotating shaft to rotate, as a preferred testing device for an elevator steel belt of the utility model, a telescopic universal coupling fixedly connected to the rotating shaft is rotatably connected between the lower end surface of the moving block and the inner lower end of the test bench, and a first motor is installed on the lower end surface of the test bench, and the output end of the first motor is fixedly connected to the telescopic universal coupling.

[0011] In order to limit the rotating shaft, as a preferred testing device for an elevator steel belt of the utility model, the lower end surface of the turntable is provided with a second slide groove surrounding the inner and outer gear rings and matching the rotating shaft.

[0012] In order to keep the steel belt in a taut state during the bending fatigue test, a testing device for an elevator steel belt is preferably provided with a third slide groove on the upper end surface of the test bench, and a second slider matching the third slide groove is fixedly connected to the lower end surface of the moving rod, and a spring is fixedly connected between the right side wall of the second slider and the third slide groove.

[0013] In order to provide power for the rotation of the screw rod, as a preferred testing device for an elevator steel belt of the utility model, a second motor is installed on the rear end surface of the movable plate, and the output end of the second motor is fixedly connected to the screw rod.

[0014] In order to drive the two clamping plates to move in opposite directions, as a preferred testing device for an elevator steel belt of the utility model, the screw rod is a bidirectional screw rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The first motor cooperates with the telescopic universal coupling to drive the rotating shaft to rotate, and the rotating shaft cooperates with the gear to drive the inner and outer gear rings to rotate clockwise. The inner and outer gear rings cooperate with the turntable to drive the connecting rod to slide in the sliding hole. The connecting rod cooperates with the movable plate to drive one end of the steel belt to move, so that the steel belt is wrapped around the outer wall of one of the rotating wheels. Since the inner and outer gear rings are open structures, when the openings of the inner and outer gear rings rotate to the gears, the gears follow the inner and outer gear rings to rotate to the inside of the inner and outer gear rings, and then the gears cooperate with the inner and outer gear rings to drive the turntable to rotate counterclockwise, so that the turntable drives the connecting rod to rotate in the opposite direction in the sliding hole, thereby wrapping the steel belt wrapped around the outer wall of one of the rotating wheels in the opposite direction to the outer wall of the other rotating wheel. Through the continuous rotation of the gears, the gears cooperate with the inner and outer gear rings to drive the turntable to rotate reciprocatingly, thereby driving the steel belt to repeatedly wrap around the outer walls of the two rotating wheels, thereby testing the bending fatigue of the steel belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a front cross-sectional structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0020] Figure 4 This is a schematic diagram of the external structure of the utility model from a top view;

[0021] Figure 5 For this utility model Figure 2 The enlarged structural diagram of part a in the middle;

[0022] In the figure: 1. test bench; 2. turntable; 3. inner and outer gear rings; 4. rotating wheel; 5. fixed plate; 6. sliding rod; 7. moving block; 8. rotating shaft; 9. gear; 10. sliding hole; 11. connecting rod; 12. moving rod; 13. moving plate; 14. first slide groove; 15. clamping plate; 16. first slider; 17. screw rod; 18. telescopic universal coupling; 19. first motor; 20. second slide groove; 21. third slide groove; 22. second slider; 23. spring; 24. second motor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] See also Figures 1 to 5 A testing device for a steel belt for an elevator comprises a testing platform 1, wherein a turntable 2 is rotatably connected to the upper end of the testing platform 1, and an inner and outer gear ring 3 is fixedly connected to the lower end surface of the turntable 2, and the inner and outer gear ring 3 is an open structure;

[0025] The upper end surface of the test bench 1 is rotatably connected to two rotating wheels 4 distributed front and back;

[0026] A fixing plate 5 is fixedly connected to the lower end of the inner part of the test bench 1, and two sliding rods 6 distributed front and back are fixedly connected between the left side wall of the fixing plate 5 and the test bench 1, and a moving block 7 is slidably connected to the outer walls of the two sliding rods 6, and a rotating shaft 8 is rotatably connected to the upper end surface of the moving block 7, and a gear 9 meshing with the inner and outer gear rings 3 is fixedly connected to the outer wall of the rotating shaft 8;

[0027] A sliding hole 10 is penetrated through the upper end surface of the test bench 1, and a connecting rod 11 is fixedly connected to the upper end surface of the turntable 2 and passes through the sliding hole 10 and extends to the top of the test bench 1. A moving rod 12 is slidably connected to the upper end surface of the test bench 1, and the other ends of the connecting rod 11 and the moving rod 12 are fixedly connected to a moving plate 13, and the upper end surfaces of the two moving plates 13 are both provided with fixing mechanisms.

[0028] In this embodiment: when in use, the two ends of the steel belt are fixed by the fixing mechanism respectively, so that the steel belt is located between the two rotating wheels 4, and then the rotating shaft 8 rotates, and the rotating shaft 8 cooperates with the gear 9 to drive the inner and outer gear rings 3 to rotate clockwise, and the inner and outer gear rings 3 cooperate with the rotating disk 2 to drive the connecting rod 11 to slide in the sliding hole 10, and the connecting rod 11 cooperates with the moving plate 13 to drive one end of the steel belt to move, so that the steel belt is wrapped around the outer wall of one of the rotating wheels 4. Since the inner and outer gear rings 3 are open structures, when the openings of the inner and outer gear rings 3 rotate to the gear 9, the gear 9 follows the inner and outer gear rings 3 to rotate to the inner and outer gear rings 3. Inside, at the same time, the moving block 7 cooperates with the second slide groove 20 to limit the rotating shaft 8, so that the gear 9 is always engaged with the inner and outer gear rings 3, and then the gear 9 cooperates with the inner and outer gear rings 3 to drive the turntable 2 to rotate counterclockwise, so that the turntable 2 drives the connecting rod 11 to rotate in the opposite direction in the slide hole 10, thereby reversely wrapping the steel belt wrapped around the outer wall of one of the rotating wheels 4 to the outer wall of the other rotating wheel 4. Through the continuous rotation of the gear 9, the gear 9 cooperates with the inner and outer gear rings 3 to drive the turntable 2 to rotate reciprocatingly, and then drives the steel belt to repeatedly wrap around the outer walls of the two rotating wheels 4, thereby testing the bending fatigue of the steel belt.

[0029] As a technical optimization solution of the utility model, the fixing mechanism includes a first slide groove 14 opened on the upper end surface of the movable plate 13, and the upper end surface of the movable plate 13 is slidably connected to two clamping plates 15 distributed front and rear, and the lower end surfaces of the two clamping plates 15 are fixedly connected to the first sliding block 16 matching the first slide groove 14, and the internal rotation of the first slide groove 14 is connected to a screw rod 17 threadedly connected to the first sliding block 16.

[0030] In this embodiment, the screw rod 17 rotates, and the screw rod 17 cooperates with the first slider 16 to drive the two clamping plates 15 to move in opposite directions, so that the two clamping plates 15 abut against the steel belt, thereby fixing the steel belt.

[0031] As a technical optimization scheme of the utility model, a telescopic universal coupling 18 fixedly connected to the rotating shaft 8 is rotatably connected between the lower end surface of the moving block 7 and the inner lower end of the test bench 1. A first motor 19 is installed on the lower end surface of the test bench 1, and the output end of the first motor 19 is fixedly connected to the telescopic universal coupling 18.

[0032] In this embodiment: the first motor 19 is started, the first motor 19 drives the telescopic universal coupling 18 to rotate, and the telescopic universal coupling 18 drives the rotating shaft 8 to rotate;

[0033] When the movable plate 13 moves, the telescopic universal coupling 18 can move with the movable plate 13. At the same time, the telescopic universal coupling 18 is telescoped according to the moving distance of the movable plate 13, which can prevent the telescopic universal coupling 18 from affecting the movement of the movable plate 13 while allowing the telescopic universal coupling 18 to continue to drive the rotating shaft 8 to rotate.

[0034] As a technical optimization solution of the present invention, a second slide groove 20 is formed on the lower end surface of the turntable 2 and surrounds the inner and outer gear rings 3 and matches the rotating shaft 8 .

[0035] In this embodiment, the second sliding groove 20 can limit the rotating shaft 8 .

[0036] As a technical optimization solution of the utility model, a third slide groove 21 is opened on the upper end surface of the test bench 1, and a second slider 22 matching the third slide groove 21 is fixedly connected to the lower end surface of the moving rod 12, and a spring 23 is fixedly connected between the right side wall of the second slider 22 and the third slide groove 21.

[0037] In this embodiment: during the wrapping process, the steel belt will move along with the moving plate 13. When moving, the steel belt pulls the other moving plate 13 to move. At the same time, the moving plate 13 cooperates with the moving rod 12 to drive the second slider 22 to move. The spring 23 is stretched by the second slider 22. When the moving plate 13 moves in the opposite direction, the spring 23 contracts, and the spring 23 drives the other moving plate 13 to reset, so that the steel belt always remains taut during the bending fatigue test.

[0038] As a technical optimization solution of the present invention, a second motor 24 is installed on the rear end surface of the movable plate 13 , and the output end of the second motor 24 is fixedly connected to the screw rod 17 .

[0039] In this embodiment, the second motor 24 is started, and the second motor 24 drives the screw rod 17 to rotate, thereby providing power for the rotation of the screw rod 17 .

[0040] As a technical optimization solution of the present invention, the screw rod 17 is a bidirectional screw rod.

[0041] In this embodiment, the screw rod 17 is a bidirectional screw rod, which can drive the two clamping plates 15 to move in opposite directions.

[0042] Working principle: When in use, the two ends of the steel belt are moved between the two clamping plates 15 respectively, and then the second motor 24 is started, the second motor 24 drives the screw rod 17 to rotate, and the screw rod 17 cooperates with the first slider 16 to drive the two clamping plates 15 to move in opposite directions, so that the two clamping plates 15 abut against the steel belt, and then the steel belt is fixed, so that the steel belt is located between the two rotating wheels 4;

[0043] Then start the first motor 19, the first motor 19 drives the telescopic universal coupling 18 to rotate, the telescopic universal coupling 18 drives the rotating shaft 8 to rotate, the rotating shaft 8 cooperates with the gear 9 to drive the inner and outer gear rings 3 to rotate clockwise, the inner and outer gear rings 3 cooperate with the turntable 2 to drive the connecting rod 11 to slide in the sliding hole 10, the connecting rod 11 cooperates with the moving plate 13 to drive one end of the steel belt to move, so that the steel belt is wrapped around the outer wall of one of the rotating wheels 4, because the inner and outer gear rings 3 are open structures, so when the opening of the inner and outer gear rings 3 rotates to the gear 9, the gear 9 follows the inner and outer gear rings 3 to rotate to the inner and outer gear rings 3. Inside, at the same time, the moving block 7 cooperates with the second slide groove 20 to limit the rotating shaft 8, so that the gear 9 is always engaged with the inner and outer gear rings 3, and then the gear 9 cooperates with the inner and outer gear rings 3 to drive the turntable 2 to rotate counterclockwise, so that the turntable 2 drives the connecting rod 11 to rotate in the opposite direction in the slide hole 10, thereby reversely wrapping the steel belt wrapped around the outer wall of one of the rotating wheels 4 to the outer wall of the other rotating wheel 4. Through the continuous rotation of the gear 9, the gear 9 cooperates with the inner and outer gear rings 3 to drive the turntable 2 to rotate reciprocatingly, and then drives the steel belt to repeatedly wrap around the outer walls of the two rotating wheels 4, thereby testing the bending fatigue of the steel belt.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A testing device for a steel belt for an elevator, comprising a testing table (1), characterized in that: The upper end of the interior of the test bench (1) is rotatably connected to a turntable (2), and the lower end surface of the turntable (2) is fixedly connected to inner and outer gear rings (3), and the inner and outer gear rings (3) are of an open structure; The upper end surface of the test bench (1) is rotatably connected to two rotating wheels (4) distributed front and rear; The lower end of the interior of the test bench (1) is fixedly connected to a fixed plate (5), and two sliding rods (6) distributed front and rear are fixedly connected between the left side wall of the fixed plate (5) and the test bench (1), and the outer walls of the two sliding rods (6) are slidably connected to a moving block (7), and the upper end surface of the moving block (7) is rotatably connected to a rotating shaft (8), and the outer wall of the rotating shaft (8) is fixedly connected to a gear (9) meshing with the inner and outer gear rings (3); The upper end surface of the test bench (1) is penetrated by a sliding hole (10); the upper end surface of the turntable (2) is fixedly connected to a connecting rod (11) passing through the sliding hole (10) and extending to the upper side of the test bench (1); the upper end surface of the test bench (1) is slidably connected to a moving rod (12); the other ends of the connecting rod (11) and the moving rod (12) are fixedly connected to a moving plate (13); and the upper end surfaces of the two moving plates (13) are both provided with a fixing mechanism.

2. The testing device for elevator steel belt according to claim 1, characterized in that: The fixing mechanism comprises a first slide groove (14) provided on the upper end surface of a movable plate (13); the upper end surface of the movable plate (13) is slidably connected to two clamping plates (15) distributed front and rear; the lower end surfaces of the two clamping plates (15) are both fixedly connected to a first sliding block (16) matching the first slide groove (14); the interior of the first slide groove (14) is rotatably connected to a screw rod (17) threadedly connected to the first sliding block (16).

3. The testing device for elevator steel belt according to claim 1, characterized in that: A telescopic universal coupling (18) fixedly connected to the rotating shaft (8) is rotatably connected between the lower end surface of the moving block (7) and the inner lower end of the test bench (1); a first motor (19) is mounted on the lower end surface of the test bench (1); an output end of the first motor (19) is fixedly connected to the telescopic universal coupling (18).

4. The testing device for elevator steel belt according to claim 1, characterized in that: The lower end surface of the rotating disk (2) is provided with a second sliding groove (20) surrounding the inner and outer gear rings (3) and matching the rotating shaft (8).

5. The testing device for elevator steel belt according to claim 1, characterized in that: The upper end surface of the test bench (1) is provided with a third slide groove (21), the lower end surface of the moving rod (12) is fixedly connected with a second slider (22) matching the third slide groove (21), and a spring (23) is fixedly connected between the right side wall of the second slider (22) and the third slide groove (21).

6. The testing device for elevator steel belt according to claim 2, characterized in that: A second motor (24) is installed on the rear end surface of the movable plate (13), and an output end of the second motor (24) is fixedly connected to the screw rod (17).

7. The testing device for elevator steel belt according to claim 2, characterized in that: The screw rod (17) is a bidirectional screw rod.

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