Dynamic load testing device for thrust wheel of small excavator

Abstract

The utility model discloses a miniature excavator thrust wheel dynamic load testing device comprising a bottom plate, the top of the bottom plate is fixedly provided with a vertical pipe, the interior of the vertical pipe is rotatably provided with a rolling shaft, the surface of the rolling shaft is movably sleeved with a synchronous belt, one side of the vertical pipe is rotatably provided with a driven gear, and the other side of the vertical pipe is rotatably provided with a driven gear. And one side of the driven gear penetrates through the vertical pipe and is fixedly connected with one side of the rolling shaft, a protection box is fixedly installed on one side of the vertical pipe, a rotating shaft is rotatably installed on one side of the interior of the protection box, a driving gear is rotatably installed on one side of the rotating shaft, and the outer surface of the driving gear is connected with the outer surface of the driven gear in a meshed mode. According to the dynamic load testing device for the thrust wheel of the small excavator, in the daily use process, an operator starts an adjusting motor, operation of the adjusting motor enables a rotating shaft to rotate, then the rotating shaft drives a driving gear to rotate, and then the driving gear drives a driven gear to rotate.

Description

Technical Field

[0001] The utility model relates to the technical field of excavators, in particular to a dynamic load testing device for supporting wheels of small excavators. Background Art

[0002] An excavator, also known as an excavating machine, is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into a transport vehicle or unload them to a stockpile. A small excavator is a type of excavator. Track wheels are an important component of a small excavator. Before the track wheels are used and installed, they need to be subjected to a dynamic load test. Therefore, a dynamic load test device for track wheels of small excavators is needed.

[0003] When operators perform dynamic load tests on small excavator track rollers, they often use corresponding small excavator track roller dynamic load test devices. Although existing devices can achieve the purpose of testing, they often require manual assistance during actual use. This operation method increases the labor intensity of operators and may reduce the efficiency of the test. In addition, manual fixation is often used when fixing the test object, which reduces its practicality. Utility Model Content

[0004] The purpose of the present utility model is to provide a small excavator supporting wheel dynamic load testing device to solve the problem raised in the above background technology that operators often use corresponding small excavator supporting wheel dynamic load testing devices when performing dynamic load testing on small excavator supporting wheels. Although the existing devices can achieve the purpose of testing, manual assistance is often required during actual use. This operation method increases the labor intensity of the operator, which may reduce the efficiency of the test, and manual fixation is often used when fixing the test object, which reduces the practicality.

[0005] The transmission mechanism is that the cam is fixedly mounted on the gear train of the vehicle frame, and the cam is installed in the form of a gear which is connected with the gear train of the vehicle frame to form a gear.

[0006] Preferably, a guide rail is fixedly mounted on one end of each vertical pipe, and the outer surface of the guide rail is movably connected to the inner surface of the movable plate.

[0007] Preferably, a strip groove is provided on the top of the bottom plate, a bidirectional threaded rod is rotatably installed inside the strip groove, and sliding sleeves are threadedly sleeved on both sides of the surface of the bidirectional threaded rod.

[0008] Preferably, a clamping plate is fixedly mounted on the top of each sliding sleeve, and the bottom of the clamping plate is movably connected to the top of the base plate.

[0009] Preferably, a rotating motor is fixedly mounted on one side of the base plate, and an output end of the rotating motor passes through the base plate and is fixedly connected to one side of the bidirectional threaded rod.

[0010] Preferably, brackets are fixedly installed at the four corners of the bottom of the base plate, the number of the brackets is four, and the four brackets have the same size.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This is a small excavator supporting wheel dynamic load testing device. During daily use, the operator starts the adjustment motor. The operation of the adjustment motor will cause the rotating shaft to rotate, and then the rotating shaft will drive the driving gear to rotate, and then the driving gear will drive the driven gear to rotate. At this time, the driven gear will drive the roller to rotate, and then the roller will drive the synchronous belt to rotate, and then the synchronous belt will drive the slider to slide inside the vertical groove and on the surface of the vertical rod. At the same time, the slider will drive the moving plate to slide, and then the moving plate will drive the test module to slide until the test module is placed on the top of the supporting wheel, and then the dynamic load test can be automatically performed on it.

[0013] This is a small excavator track roller dynamic load testing device. During daily use, the operator places the track roller on the top of the base plate and between the clamping plate, and then starts the rotating motor. The operation of the rotating motor will cause the bidirectional threaded rod to rotate, and then the bidirectional threaded rod will drive the two sleeves to slide inside the strip groove, and then the sleeve will drive the clamping plate to slide, and then the track roller will be automatically clamped and fixed by the clamping plate, thereby increasing its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 It is a front sectional view of the utility model;

[0016] Figure 3 It is a side sectional view of the utility model;

[0017] Figure 4 This is a schematic diagram of the top structure of the base plate of the present invention.

[0018] In the figure: 1. Base plate; 2. Vertical tube; 3. Roller; 4. Synchronous belt; 5. Driven gear; 6. Protective box; 7. Rotating shaft; 8. Driving gear; 9. Adjusting motor; 10. Vertical slot; 11. Vertical rod; 12. Slider; 13. Moving plate; 14. Test module; 15. Guide rail; 16. Strip slot; 17. Bidirectional threaded rod; 18. Sliding sleeve; 19. Clamp; 20. Rotating motor; 21. Bracket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-4The utility model provides a technical solution: a dynamic load testing device for supporting wheels of a small excavator, comprising a base plate 1, a vertical tube 2 fixedly installed on the top of the base plate 1, a roller 3 rotatably installed inside the vertical tube 2, a synchronous belt 4 movably sleeved on the surface of the roller 3, and the roller 3 drives the synchronous belt 4 to rotate when it rotates, a driven gear 5 rotatably installed on one side of the vertical tube 2, one side of the driven gear 5 passes through the vertical tube 2 and is fixedly connected to one side of the roller 3, and the driven gear 5 drives the roller 3 to rotate when it rotates, a protective box 6 is fixedly installed on one side of the vertical tube 2, a rotating shaft 7 is rotatably installed on one side of the internal side of the protective box 6, and a driving gear 8 is rotatably installed on one side of the rotating shaft 7, and the outer surface of the driving gear 8 is meshed with the outer surface of the driven gear 5, and the rotating shaft 7 drives the driving gear 8 to rotate when it rotates, and then drives the driven gear 5 to rotate, and an adjusting motor 9 is fixedly installed on one side of the protective box 6 The output end of the adjusting motor 9 passes through the protective box 6 and is fixedly connected to one side of the rotating shaft 7. The adjusting motor 9 will cause the rotating shaft 7 to rotate when it is running. A vertical slot 10 is provided at one end of the vertical tube 2. A vertical rod 11 is fixedly installed inside the vertical slot 10. A slider 12 is movably sleeved on the surface of the vertical rod 11. One end of the slider 12 is fixedly connected to one end of the synchronous belt 4. When the synchronous belt 4 rotates, it will drive the slider 12 to slide inside the vertical slot 10 and on the surface of the vertical rod 11. A moving plate 13 is fixedly installed on the other end of the slider 12. When the slider 12 slides, it will drive the moving plate 13 to slide, and a test module 14 is fixedly installed on the bottom of the moving plate 13. The test module 14 is used for dynamic load testing. A guide rail 15 is fixedly installed at one end of the vertical tube 2, and the outer surface of the guide rail 15 is movably connected to the inner surface of the moving plate 13. Due to the design of the guide rail 15, the moving plate 13 can be more stable when sliding.

[0021] A strip groove 16 is provided at the top of the base plate 1, and a bidirectional threaded rod 17 is rotatably installed inside the strip groove 16, and sleeves 18 are threadedly sleeved on both sides of the surface of the bidirectional threaded rod 17. When the bidirectional threaded rod 17 rotates, it will drive the two sleeves 18 to move toward or away from each other inside the strip groove 16. A splint 19 is fixedly installed on the top of the sleeve 18, and the bottom of the splint 19 is movably connected to the top of the base plate 1. When the sleeve 18 slides, it will drive the splint 19 to slide. A rotating motor 20 is fixedly installed on one side of the base plate 1, and the output end of the rotating motor 20 passes through the base plate 1 and is fixedly connected to one side of the bidirectional threaded rod 17. When the rotating motor 20 is running, the bidirectional threaded rod 17 is rotated. Brackets 21 are fixedly installed at the four corners of the bottom of the base plate 1. There are four brackets 21, and the four brackets 21 have the same size. Due to the design of the bracket 21, the device can be made more stable.

[0022] Working principle: First, the operator places the supporting roller between the top of the base plate 1 and the clamping plate 19, and then starts the rotating motor 20. The operation of the rotating motor 20 will cause the bidirectional threaded rod 17 to rotate, and the bidirectional threaded rod 17 will drive the two sliding sleeves 18 to slide inside the strip groove 16, and then the sliding sleeves 18 will drive the clamping plate 19 to slide, and then the supporting roller is automatically clamped and fixed through the clamping plate 19. Secondly, the adjusting motor 9 is started. The operation of the adjusting motor 9 will cause the rotating shaft 7 to rotate, and then the rotating shaft 7 will drive the driving gear 8 to rotate, and then the driving gear 8 will drive the driven gear 5 to rotate. At this time, the driven gear 5 will drive the roller 3 to rotate, and then the roller 3 will drive the synchronous belt 4 to rotate, and then the synchronous belt 4 will drive the slider 12 to slide inside the vertical groove 10 and on the surface of the vertical rod 11. At the same time, the slider 12 will drive the moving plate 13 to slide, and then the moving plate 13 will drive the test module 14 to slide until the test module 14 is placed on the top of the supporting roller, and the dynamic load test can be carried out.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small excavator track wheel dynamic load testing device, comprising a base plate (1), characterized in that: A vertical tube (2) is fixedly mounted on the top of the bottom plate (1), a roller (3) is rotatably mounted inside the vertical tube (2), a synchronous belt (4) is movably sleeved on the surface of the roller (3), a driven gear (5) is rotatably mounted on one side of the vertical tube (2), one side of the driven gear (5) passes through the vertical tube (2) and is fixedly connected to one side of the roller (3), a protective box (6) is fixedly mounted on one side of the vertical tube (2), a rotating shaft (7) is rotatably mounted on one side of the internal side of the protective box (6), a driving gear (8) is rotatably mounted on one side of the rotating shaft (7), and the outer surface of the driving gear (8) is in contact with the driven gear (5) ) is meshedly connected to the outer surface of the protective box (6), an adjusting motor (9) is fixedly installed on one side of the protective box (6), the output end of the adjusting motor (9) passes through the protective box (6) and is fixedly connected to one side of the rotating shaft (7), one end of the vertical pipe (2) is provided with a vertical groove (10), the interior of the vertical groove (10) is fixedly installed with a vertical rod (11), the surface of the vertical rod (11) is movably sleeved with a slider (12), one end of the slider (12) is fixedly connected to one end of the synchronous belt (4), the other end of the slider (12) is fixedly installed with a moving plate (13), and the bottom of the moving plate (13) is fixedly installed with a test module (14).

2. The dynamic load testing device for the track wheel of a small excavator according to claim 1, characterized in that: A guide rail (15) is fixedly mounted on one end of each vertical pipe (2), and the outer surface of the guide rail (15) is movably connected to the inner surface of the movable plate (13).

3. The dynamic load testing device for the track wheel of a small excavator according to claim 1, characterized in that: A strip groove (16) is provided on the top of the bottom plate (1), a bidirectional threaded rod (17) is rotatably mounted inside the strip groove (16), and sliding sleeves (18) are threadedly sleeved on both sides of the surface of the bidirectional threaded rod (17).

4. The dynamic load testing device for the track wheel of a small excavator according to claim 3, characterized in that: A clamping plate (19) is fixedly mounted on the top of each sliding sleeve (18), and the bottom of the clamping plate (19) is movably connected to the top of the base plate (1).

5. The dynamic load testing device for the track wheel of a small excavator according to claim 1, characterized in that: A rotating motor (20) is fixedly mounted on one side of the base plate (1), and an output end of the rotating motor (20) passes through the base plate (1) and is fixedly connected to one side of the bidirectional threaded rod (17).

6. The dynamic load testing device for the track wheel of a small excavator according to claim 1, characterized in that: Brackets (21) are fixedly mounted at the four corners of the bottom of the base plate (1). There are four brackets (21), and the four brackets (21) have the same size.

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