Crawler belt anti-loosening drag chain wheel support mechanism

Abstract

The utility model relates to a crawler belt anti-loosening drag chain wheel support mechanism which comprises a drag chain wheel support and a drag chain wheel body and further comprises a plurality of annular grooves, a plurality of clamping grooves and a plurality of clamping grooves, and the annular grooves are formed in the surface of the drag chain wheel body. The anti-loosening mechanism is installed in the multiple annular grooves, the anti-loosening mechanism comprises multiple annular rubber air bags, and the multiple annular rubber air bags are installed in the multiple annular grooves correspondingly; a connecting pipe penetrates through the front end of the drag chain wheel body, the surface of the end, located in the drag chain wheel body, of the connecting pipe is communicated with a plurality of air inlet pipes, and the ends, away from the connecting pipe, of the air inlet pipes penetrate through the drag chain wheel body to be communicated with an annular rubber air bag. The interior of the connecting pipe and the interior of the air inlet pipe are inflated, so that the multiple annular rubber air bags on the surface of the drag chain wheel body are expanded, a crawler belt is rapidly tensioned, in addition, due to the fact that the annular rubber air bags are expanded annularly, different positions of the crawler belt can be tensioned, and the tensioning effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of drag chain wheel supports, in particular to a crawler track anti-loosening drag chain wheel support mechanism. 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 loads them into a transport vehicle or unloads them to a stockpile yard. The track sprocket wheel supports of the excavator are fixed and are used to support the track so that the excavator can work stably. When the grease in the tensioning device in the track is insufficient and no grease is brought, the track will loosen relative to the driving wheel and guide wheel, causing the track to fall off and affecting the normal operation of the excavator, and thus it is necessary to improve the track sprocket wheel anti-loosening supports.

[0003] According to patent application No. 202223265050.1, a crawler sprocket anti-loosening support mechanism is known, a lifting groove is provided inside the fixed support, a lifting seat is provided inside the lifting groove, and the lifting seat extends to the top of the fixed support, an adjustment cavity is provided inside the fixed support along one side of the lifting groove, a ball screw is provided inside the adjusting cavity, and the ball screw is rotatably connected to the fixed support, a sliding block is slidably installed on the outside of the ball screw through a ball nut, a first connecting plate is fixedly installed on one side of the sliding block, and the first connecting plate is fixedly connected to the lifting seat by bolts, and a hand wheel is rotatably installed above the fixed support. In the process of realizing the utility model, the inventor found that at least the following problems exist in the prior art and have not been solved: Solution: Although the hand wheel, ball screw, sliding block and first connecting plate are set up, the ball screw is driven to rotate by turning the hand wheel, and the height position of the lifting seat can be adjusted through the connection between the sliding block and the first connecting plate, so that when the track sprocket is loose, the sprocket can be raised and lowered, which increases the stable contact between the track and the sprocket. At the same time, the sprocket height can be adjusted by turning the hand wheel, which is simple and convenient to operate, saving time and effort. However, during use, the traditional track anti-loosening sprocket support mechanism uses a ball screw to rotate to drive the lifting seat up and down. The ball screw will shake during the use of the support, and the ball screw will be displaced, causing the lifting seat to move up and down, affecting the stability of the lifting seat. Therefore, a new technical solution needs to be designed to solve the problem. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a track anti-loosening drag sprocket support mechanism to solve the current traditional track anti-loosening drag sprocket support mechanism, which adopts the rotation of the ball screw to drive the lifting seat to move up and down. The ball screw will shake during the use of the support, and the ball screw will be displaced, causing the lifting seat to move up and down, affecting the technical problem of the stability of the lifting seat.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a crawler anti-loosening drag chain wheel support mechanism, including a drag chain wheel support and a drag chain wheel body, and also including:

[0006] A plurality of annular grooves are respectively formed on the surface of the sprocket body;

[0007] An anti-loosening mechanism is installed in the plurality of annular grooves, the anti-loosening mechanism comprises a plurality of annular rubber airbags, and the plurality of annular rubber airbags are respectively installed in the plurality of annular grooves;

[0008] A connecting pipe runs through the front end of the sprocket wheel body, and a surface of one end of the connecting pipe located inside the sprocket wheel body is connected to a plurality of air inlet pipes, and ends of the plurality of air inlet pipes away from the connecting pipe pass through the sprocket wheel body and are connected to an annular rubber airbag.

[0009] Preferably, the front end of the connecting tube is detachably connected with a tube cover.

[0010] Preferably, a square hole is provided on the top of the sprocket support, a moving block extends into the square hole, a limiting block is provided on the top of the moving block, limiting rings are fixed at both the front and rear ends of the top of the limiting block, and the sprocket body passes through the limiting ring.

[0011] Preferably, positioning grooves are penetrated at four corners of the bottom of the moving block, positioning rods are inserted into the positioning grooves, and a sprocket wheel support is fixed to the bottom of the positioning rod.

[0012] Preferably, a groove is provided on the top of the moving block, a motor is installed at the bottom end of the groove, a motor shaft is connected to the top of the motor, and a limiting block is fixed on the top of the motor shaft.

[0013] Preferably, a folding airbag is installed at the bottom of the moving block, the bottom of the folding airbag is connected to an air nozzle, and the bottom of the air nozzle passes through the sprocket wheel support.

[0014] Preferably, an opening is provided at the front end of the sprocket wheel support, and a front cover plate is installed inside the opening.

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

[0016] 1. The utility model combines an annular groove, an annular rubber airbag and a connecting tube, and can use the connecting tube to connect with an external inflation device, inflate the connecting tube and the inside of the air intake pipe, and expand multiple annular rubber airbags on the surface of the sprocket wheel body, so as to quickly tension the track. Moreover, since the annular rubber airbag expands in an annular shape, it can tension different positions of the track, thereby improving the tensioning effect, and solving the technical problem that the traditional track anti-loosening sprocket wheel support mechanism adopts the method of rotating the ball screw to drive the lifting seat to move up and down, and the ball screw will shake during the use of the support. The ball screw is displaced, causing the lifting seat to move up and down, affecting the stability of the lifting seat.

[0017] 2. The utility model combines a moving block, a folding airbag and an air nozzle. When it is necessary to adjust the moving block and the drag sprocket wheel body up and down, the air nozzle can be connected to an external pneumatic mechanism. After the excavator is provided with the pneumatic mechanism, the air pressure input into the folding airbag can be controlled to control the up and down movement distance of multiple moving blocks and the drag sprocket wheel body, and the up and down movement distance will not be loosened due to shaking. This solves the problem that the traditional crawler anti-loosening drag sprocket wheel support mechanism adopts the method of rotating the ball screw to drive the lifting seat to move up and down. The ball screw will shake during the use of the support. The ball screw will be displaced, causing the lifting seat to move up and down, affecting the technical problem of the stability of the lifting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the main body of the drag chain wheel of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the sprocket support of the utility model.

[0021] In the figure: 1. moving block; 101. sprocket support; 102. opening; 103. front cover; 2. sprocket body; 201. annular groove; 202. annular rubber airbag; 203. limiting ring; 204. limiting block; 205. connecting pipe; 206. pipe cover; 207. air inlet pipe; 3. square hole; 301. positioning groove; 302. positioning rod; 303. folding airbag; 304. groove; 305. motor; 306. motor shaft; 307. air nozzle. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Embodiment 1: A crawler anti-loosening drag chain wheel support mechanism, see Figures 1 to 3, including a sprocket wheel support 101 and a sprocket wheel body 2, and also including: a plurality of annular grooves 201, respectively opened on the surface of the sprocket wheel body 2; an anti-loosening mechanism, installed in the plurality of annular grooves 201, the anti-loosening mechanism includes a plurality of annular rubber airbags 202, and the plurality of annular rubber airbags 202 are respectively installed in the plurality of annular grooves 201; a connecting pipe 205 is passed through the front end of the sprocket wheel body 2, and a plurality of air inlet pipes 207 are connected to the surface of one end of the connecting pipe 205 located in the sprocket wheel body 2, and the ends of the plurality of air inlet pipes 207 away from the connecting pipe 205 pass through the sprocket wheel body 2 and are connected to the annular rubber airbags 202. When the track needs to be tensioned, the connecting pipe 205 is connected to the outer The air inflating device is connected to the connecting pipe 205 and the air inlet pipe 207 through the air inflating device, so that the multiple annular rubber air bags 202 on the surface of the sprocket wheel body 2 expand, thereby quickly tightening the track. Moreover, since the annular rubber air bags 202 expand in an annular shape, they can tighten the track at different positions, thereby improving the tensioning effect, and solving the technical problem that the traditional track anti-loosening sprocket wheel support 101 mechanism adopts the ball screw rotation method to drive the lifting seat to move up and down, the ball screw will shake during the use of the support, and the ball screw will be displaced, causing the lifting seat to move up and down, affecting the stability of the lifting seat.

[0024] For details, see Figure 1 The front end of the connecting tube 205 is detachably connected with a tube cover 206 .

[0025] For further information, see Figure 1 A square hole 3 is provided on the top of the sprocket wheel support 101, and a moving block 1 is inserted into the square hole 3. A limiting block 204 is provided on the top of the moving block 1. Limiting rings 203 are fixed at both the front and rear ends of the top of the limiting block 204, and the sprocket wheel body 2 is penetrated inside the limiting ring 203.

[0026] It is worth noting that see Figure 3 The four corners of the bottom of the moving block 1 are penetrated by positioning grooves 301, and a positioning rod 302 extends into the positioning groove 301. The bottom of the positioning rod 302 is fixed with a drag chain wheel support 101.

[0027] It is worth noting that see Figure 3 A groove 304 is provided on the top of the moving block 1, and a motor 305 is installed at the bottom end of the groove 304. A motor shaft 306 is connected to the top of the motor 305, and a limiting block 204 is fixed on the top of the motor shaft 306. When the angle of the sprocket wheel body 2 needs to be adjusted, the motor 305 can be turned on, and the motor 305 drives the motor shaft 306, and the motor shaft 306 drives the limiting block 204, and the limiting block 204 drives the limiting ring 203, and the limiting ring 203 drives the sprocket wheel body 2 to adjust the angle.

[0028] It is worth mentioning that see Figure 3 A folding air bag 303 is installed at the bottom of the moving block 1, and an air nozzle 307 is connected to the bottom of the folding air bag 303. The bottom of the air nozzle 307 passes through the sprocket wheel support 101. When the moving block 1 and the sprocket wheel body 2 need to be adjusted up and down, the air nozzle 307 can be connected to an external pneumatic mechanism. After the excavator is equipped with the pneumatic mechanism, the up and down moving distance of multiple moving blocks 1 and the sprocket wheel body 2 can be controlled by controlling the air pressure input into the folding air bag 303, and it will not be loosened due to shaking, which solves the problem of traditional crawler anti-loosening sprocket wheel support 101 mechanism. The ball screw is rotated to drive the lifting seat to move up and down. The ball screw will shake during the use of the support. The ball screw is displaced, which causes the lifting seat to move up and down, affecting the technical problem of the stability of the lifting seat.

[0029] It is worth emphasizing that see Figure 1 An opening 102 is formed at the front end of the sprocket wheel support 101 , and a front cover plate 103 is installed inside the opening 102 .

[0030] When using a track anti-loosening drag sprocket support mechanism, the connecting pipe 205 is connected to the external inflation device, and the connecting pipe 205 and the air inlet pipe 207 are inflated through the inflation device to expand the multiple annular rubber airbags 202 on the surface of the drag sprocket body 2, thereby quickly tightening the track. Moreover, since the annular rubber airbags 202 are annular inflated, different positions of the track can be tightened, thereby improving the tensioning effect. When the angle of the drag sprocket body 2 needs to be adjusted, the motor 305 can be turned on, and the motor 305 drives the motor shaft 306, the motor shaft 306 drives the limit block 204, the limit block 204 drives the limit ring 203, and the limit ring 203 drives the sprocket wheel body 2 to adjust the angle. When it is necessary to adjust the moving block 1 and the sprocket wheel body 2 up and down, the air nozzle 307 can be connected to the external pneumatic mechanism. After the excavator is equipped with the pneumatic mechanism, it can control the air pressure input into the folding airbag 303, thereby controlling the up and down moving distance of multiple moving blocks 1 and the sprocket wheel body 2, and will not be loosened due to shaking.

[0031] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0032] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A crawler anti-loosening drag sprocket support mechanism, comprising a drag sprocket support (101) and a drag sprocket body (2), characterized in that: Also includes: A plurality of annular grooves (201) are respectively formed on the surface of the sprocket wheel body (2); An anti-loosening mechanism is installed in the plurality of annular grooves (201), the anti-loosening mechanism comprises a plurality of annular rubber airbags (202), and the plurality of annular rubber airbags (202) are respectively installed in the plurality of annular grooves (201); A connecting tube (205) passes through the front end of the sprocket wheel body (2); one end surface of the connecting tube (205) located inside the sprocket wheel body (2) is connected to a plurality of air intake pipes (207); and one end of the plurality of air intake pipes (207) away from the connecting tube (205) passes through the sprocket wheel body (2) and is connected to an annular rubber air bag (202).

2. A crawler anti-loosening drag chain wheel support mechanism as claimed in claim 1, characterized in that: The front end of the connecting tube (205) is detachably connected to a tube cover (206).

3. A crawler anti-loosening drag chain wheel support mechanism as claimed in claim 1, characterized in that: A square hole (3) is provided on the top of the sprocket wheel support (101), a moving block (1) is inserted into the square hole (3), a limiting block (204) is provided on the top of the moving block (1), limiting rings (203) are fixed at both the front and rear ends of the top of the limiting block (204), and the sprocket wheel body (2) is penetrated by the limiting ring (203).

4. A crawler anti-loosening drag chain wheel support mechanism as claimed in claim 3, characterized in that: The four corners of the bottom of the moving block (1) are all penetrated by positioning grooves (301), a positioning rod (302) extends into the positioning groove (301), and a drag chain wheel support (101) is fixed to the bottom of the positioning rod (302).

5. A crawler anti-loosening drag chain wheel support mechanism as claimed in claim 3, characterized in that: The top of the moving block (1) is provided with a groove (304), the bottom end of the groove (304) is provided with a motor (305), the top of the motor (305) is connected with a motor shaft (306), and the top of the motor shaft (306) is fixed with a limiting block (204).

6. A crawler anti-loosening drag chain wheel support mechanism as claimed in claim 3, characterized in that: A folding air bag (303) is installed at the bottom of the moving block (1), and the bottom of the folding air bag (303) is connected to an air nozzle (307), and the bottom of the air nozzle (307) passes through the drag chain wheel support (101).

7. A crawler anti-loosening drag chain wheel support mechanism as claimed in claim 1, characterized in that: The front end of the sprocket wheel support (101) is provided with an opening (102), and a front cover plate (103) is installed inside the opening (102).

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