Caterpillar band structure for pneumatic caterpillar band type drill carriage

Abstract

The utility model discloses a crawler belt structure for a pneumatic crawler belt type drill carriage, and belongs to the technical field of crawler belt type drill carriages. A crawler belt structure for a pneumatic crawler belt type drill carriage comprises a chassis body, and crawler belt bodies are arranged on the two sides of the chassis body. According to the crawler belt structure for the pneumatic crawler belt type drill carriage, an external steel pipe is inserted into a rotating rod through a movable groove, a rotating disc rotates through pressing of a human body, then a threaded rod rotates towards a sealing barrel, a connecting rod rotates to drive an ejector block to move, and at the moment, a telescopic rod stretches out under the thrust of the ejector block to adjust a tensioning device; when the air cylinder body is damaged, the tensioning degree of the crawler belt body is kept, in the walking process of the crawler-type drill carriage, large noise is avoided, clearance fit between the crawler belt body and the walking gear ring is guaranteed, abrasion between the crawler belt body and the walking gear ring is reduced, and the service life of the crawler-type drill carriage is prolonged. And the service life of the track body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of crawler drilling vehicles, and more specifically to a crawler structure for a pneumatic crawler drilling vehicle. Background Art

[0002] The crawler-type drilling vehicle adopts pneumatic crawlers and is equipped with an anti-stuck drill device. It has a fast rock drilling speed and high working efficiency. The flexible rock drilling mechanism can drill the working surface, roof, side and bottom of the tunnel, and can also easily drill upward anchor holes. The vehicle has a modular design, a small body, a compact structure, a low profile, flexible maneuverability, stable operation, and strong climbing ability. It can greatly improve the working environment and construction efficiency and quality.

[0003] When some existing pneumatic crawler drilling vehicles tension the crawler tracks, they usually extend the tensioning device by extending the pneumatic cylinder, thereby driving the tensioning wheel to adjust the tension of the crawler tracks. However, the back-and-forth movement of the internal piston of the pneumatic cylinder will cause the sealing ring on the surface of the piston to age over a long period of time, thereby causing the air tightness of the pneumatic cylinder to be poor. The pneumatic cylinder with poor air tightness will shrink under the action of the tensioning device, thereby causing the tension of the crawler tracks to be too loose. During the movement of the pneumatic crawler drilling vehicle, the crawler tracks will not only produce a loud and harsh noise, but also accelerate the wear between the drive gear ring and the crawler tracks, thereby reducing the service life of the crawler tracks. In severe cases, the crawler tracks will also be detached from the drive gear ring. Utility Model Content

[0004] The purpose of the utility model is to provide a crawler structure for a pneumatic crawler drilling vehicle to solve the problems raised in the above background technology:

[0005] When some existing pneumatic crawler drilling vehicles are tensioned on the crawler, the tension of the crawler is usually adjusted by extending the pneumatic cylinder. However, the back-and-forth movement of the internal piston of the pneumatic cylinder will cause the sealing ring on the surface of the piston to age over a long period of time, resulting in poor air tightness of the pneumatic cylinder and excessive looseness of the crawler. During the movement of the pneumatic crawler drilling vehicle, the crawler will not only produce a loud and harsh noise, but also accelerate the wear between the drive gear ring and the crawler, reducing the service life of the crawler. In severe cases, it will also cause the crawler to separate from the drive gear ring.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A crawler structure for a pneumatic crawler drilling vehicle comprises a chassis as a whole, crawler bodies are arranged on both sides of the chassis as a whole, a tensioning device is arranged inside the chassis as a whole, a cylinder body is arranged inside the tensioning device, one end of the cylinder body is fixedly connected to a sealing barrel, one end of the sealing barrel extends to the interior of the cylinder body, threaded rods and connecting rods are respectively arranged on the two end surfaces of the sealing barrel, the threaded rod is threadedly connected to one end surface of the sealing barrel, the connecting rod is rotatably connected to the other end surface of the sealing barrel, one end of the threaded rod and the connecting rod both extend to the interior of the sealing barrel, and the ends of the threaded rod and the connecting rod are fixedly connected, one end of the connecting rod is fixedly connected to a top block, one end of the threaded rod is fixedly connected to a turntable, a plurality of turntables are fixedly installed on the surface of the turntable, and the surface of the tensioning device is fixedly connected to a tensioning wheel.

[0008] By adopting the above technical solution, the telescopic rod is extended by the thrust of the top block to adjust the tensioning device, so that the tensioning wheel moves to adjust the tension of the track body. When the cylinder body is damaged, the tension of the track body is maintained. During the movement of the crawler drilling vehicle, loud noise is avoided, the clearance between the track body and the traveling gear ring is ensured, the wear between the track body and the traveling gear ring is reduced, and the service life of the track body is extended.

[0009] Preferably, the cylinder body includes an air cylinder and a telescopic rod, one end of the telescopic rod extends into the interior of the cylinder body, and a piston matching the air cylinder is fixedly connected to the surface of one end of the telescopic rod, and a first air groove and a second air groove are respectively formed between the two sides of the piston and the air cylinder.

[0010] By adopting the above technical solution, the air in and out of the first air groove and the second air groove makes the telescopic rod extend or retract.

[0011] Preferably, an air inlet valve communicating with the first air groove is fixedly mounted on one end surface of the air cylinder, and an air outlet valve communicating with the second air groove is fixedly mounted on the other end surface of the air cylinder.

[0012] Preferably, both side surfaces of the chassis are provided with movable grooves flush with the position of the turntable.

[0013] Preferably, one end of the sealing barrel extends to the interior of the gas cylinder and is located on one side of the piston.

[0014] Preferably, a groove is provided on one end surface of the sealing barrel, a sealing groove is provided on the inner wall of the groove, a notch is provided inside the top block, a matching slider is slidably connected inside the notch, a spring is elastically connected between the slider and the notch, the slider is elastically connected to the notch through the spring, and a sealing ring that seals with the sealing groove is fixedly connected to the surface of the slider.

[0015] By adopting the above technical solution, the threaded rod rotates toward the outside of the sealing barrel, and at this time the connecting rod moves with the top block into the slot. During the movement of the top block, the sealing ring and the slider are squeezed by the inner wall of the slot and move into the slot to compress the spring. When the top block moves into the slot, the sealing ring and the slider are reset under the action of the spring, and the sealing ring is reset to seal with the sealing groove, thereby ensuring the sealing of the cylinder body and further ensuring the normal use of the cylinder body.

[0016] Preferably, the end surfaces of the sliding blocks are all provided with rounded corners, and the inner wall of the sealing groove is also provided with rounded corners.

[0017] By adopting the above technical solution, the rounded corner design facilitates the matching or separation of the sealing ring and the sealing groove.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1) When the crawler structure of the pneumatic crawler drilling vehicle is in use, an external steel pipe is inserted into the rotating rod through a movable groove, and the turntable is rotated by the pressure of the human body, so that the threaded rod rotates toward the sealing barrel, and the connecting rod rotates and moves with the top block. At this time, the telescopic rod is extended by the thrust of the top block to adjust the tensioning device, and then the tensioning wheel moves to adjust the tension of the crawler body. When the cylinder body is damaged, the tension of the crawler body is maintained. During the movement of the crawler drilling vehicle, loud noise is avoided, the clearance between the crawler body and the traveling gear ring is ensured, the wear between the crawler body and the traveling gear ring is reduced, and the service life of the crawler body is extended.

[0020] 2) When the crawler structure of the pneumatic crawler drilling vehicle is in use, the threaded rod rotates toward the outside of the sealing barrel. At this time, the connecting rod moves with the top block to move into the slot. During the movement of the top block, the sealing ring and the slider are squeezed by the inner wall of the slot and move into the slot to compress the spring. When the top block moves into the slot, the sealing ring and the slider are reset under the action of the spring. The sealing ring is reset and sealed with the sealing groove, ensuring the sealing of the cylinder body, thereby ensuring the normal use of the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the chassis of the utility model;

[0022] Figure 2 This is a schematic diagram of the crawler body structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the cylinder body structure of the utility model;

[0024] Figure 4 It is a cross-sectional schematic diagram of the cylinder body of the utility model;

[0025] Figure 5 This is a schematic diagram of the sealing barrel structure of the utility model;

[0026] Figure 6 For the utility model Figure 5 A partial enlarged view of middle A.

[0027] Explanation of the numbers in the figure: 1. Overall chassis; 2. Track body; 3. Tensioner; 4. Cylinder body; 5. Sealing barrel; 6. Threaded rod; 7. Top block; 8. Turntable; 9. Turnbar; 10. Air cylinder; 11. Telescopic rod; 12. First air groove; 13. Second air groove; 14. Piston; 15. Inlet valve; 16. Exit valve; 17. Slot; 18. Sealing groove; 19. Connecting rod; 20. Notch; 21. Slider; 22. Spring; 23. Sealing ring; 24. Tensioner; 25. Movable groove. DETAILED DESCRIPTION

[0028] Example 1

[0029] When some existing pneumatic crawler drilling vehicles are tensioned on the crawler, the tension of the crawler is usually adjusted by extending the pneumatic cylinder. However, the back-and-forth movement of the internal piston of the pneumatic cylinder will cause the sealing ring on the surface of the piston to age over a long period of time, resulting in poor air tightness of the pneumatic cylinder and too loose tension of the crawler. During the movement of the pneumatic crawler drilling vehicle, the crawler will not only produce a loud and harsh noise, but also accelerate the wear between the drive gear ring and the crawler, reducing the service life of the crawler. In severe cases, it will also cause the crawler to separate from the drive gear ring. The following solution is used to solve this problem.

[0030] See also Figures 1 to 6A crawler structure for a pneumatic crawler drilling vehicle comprises a chassis as a whole 1, the chassis as a whole 1 is a conventional crawler chassis as a whole 1 in the prior art, crawler bodies 2 are arranged on both sides of the chassis as a whole 1, the crawler bodies 2 are existing steel plate crawlers, a tensioning device 3 is arranged inside the chassis as a whole 1, the tensioning device 3 is a device for adjusting a tensioning wheel 24 in the prior art, a cylinder body 4 is arranged inside the tensioning device 3, the cylinder body 4 is a conventional cylinder in the prior art, one end of the cylinder body 4 is fixedly connected with a sealing barrel 5, one end of the sealing barrel 5 extends to the inside of the cylinder body 4, and threaded rods 6 and connecting rods 19 are respectively arranged on the surfaces of both ends of the sealing barrel 5, the threaded rod 6 is threadedly connected to the surface of one end of the sealing barrel 5, the connecting rod 19 is rotatably connected to the surface of the other end of the sealing barrel 5, one end of the threaded rod 6 and the connecting rod 19 both extend to the inside of the sealing barrel 5, and the ends of the threaded rod 6 and the connecting rod 19 are fixedly connected to the sealing barrel 5. Fixed connection, one end of the connecting rod 19 is fixedly connected with the top block 7, one end of the threaded rod 6 is fixedly connected with the turntable 8, and a plurality of turn rods 9 are fixedly installed on the surface of the turntable 8. The surface of the tensioning device 3 is fixedly connected with the tensioning wheel 24, and the outer steel pipe is inserted into the turntable 9 through the movable groove 25. The turntable 8 is rotated by the pressure of the human body, and then the threaded rod 6 is rotated toward the sealing barrel 5. The connecting rod 19 rotates and moves with the top block 7. At this time, the telescopic rod 11 is extended by the thrust of the top block 7 to adjust the tensioning device 3, and then the tensioning wheel 24 is moved to adjust the tension of the crawler body 2. When the cylinder body 4 is damaged, the tension of the crawler body 2 is maintained. During the walking process of the crawler drilling vehicle, the sound of large noise is avoided, the clearance between the crawler body 2 and the walking gear ring is guaranteed, the wear between the crawler body 2 and the walking gear ring is reduced, and the service life of the crawler body 2 is extended.

[0031] The cylinder body 4 includes an air cylinder 10 and a telescopic rod 11, one end of the telescopic rod 11 extends to the interior of the cylinder body 4, and a piston 14 matching the air cylinder 10 is fixedly connected to the surface of one end of the telescopic rod 11, and a first air groove 12 and a second air groove 13 are formed between the two sides of the piston 14 and the air cylinder 10 respectively, and the air in and out of the first air groove 12 and the second air groove 13 makes the telescopic rod 11 extend or retract.

[0032] An air inlet valve 15 communicating with the first air groove 12 is fixedly mounted on one end surface of the air cylinder 10 , and an air outlet valve 16 communicating with the second air groove 13 is fixedly mounted on the other end surface of the air cylinder 10 .

[0033] Both side surfaces of the chassis 1 are provided with movable grooves 25 which are flush with the rotating disk 8 .

[0034] One end of the sealing barrel 5 extends to the interior of the gas cylinder 10 and is located on one side of the piston 14 .

[0035] The utility model uses steps as follows: when the crawler structure of the pneumatic crawler drilling vehicle is in use, when the cylinder body 4 is in normal use, the sealing barrel 5 is in a sealed state, and air is introduced into the first air groove 12 through the air inlet valve 15, so that the pressure in the first air groove 12 increases, and then the telescopic rod 11 extends outward with the tensioning device 3 to move, and then the tensioning wheel 24 moves to adjust the tension of the crawler body 2, thereby ensuring the tightness of the crawler body 2. When the cylinder body 4 is damaged, the air tightness is poor due to the aging of the seal, and the tightness of the crawler body 2 is too loose. At this time, the external steel pipe is inserted into the rotating rod 9 through the movable groove 25, and the turntable 8 is rotated by the pressure of the human body, so that the threaded rod 6 rotates toward the sealing barrel 5, and the connecting rod 19 rotates and moves with the top block 7. At this time, the telescopic rod 11 is pushed The thrust of block 7 extends out to adjust the tensioning device 3, thereby causing the tensioning wheel 24 to move and adjust the tension of the crawler body 2. This solution inserts the external steel pipe into the rotating rod 9 through the movable groove 25, and the turntable 8 rotates through the pressure of the human body, thereby causing the threaded rod 6 to rotate toward the sealing barrel 5, and the connecting rod 19 rotates and moves with the top block 7. At this time, the telescopic rod 11 is extended by the thrust of the top block 7 to adjust the tensioning device 3, thereby causing the tensioning wheel 24 to move and adjust the tension of the crawler body 2. When the cylinder body 4 is damaged, the tension of the crawler body 2 is maintained. During the movement of the crawler drilling vehicle, the sound of loud noise is avoided, the clearance between the crawler body 2 and the traveling gear ring is ensured, the wear between the crawler body 2 and the traveling gear ring is reduced, and the service life of the crawler body 2 is extended.

[0036] Example 2

[0037] During the use of the cylinder body 4, in order to ensure the airtightness of the cylinder body 4, it is necessary to prevent the air pressure of the first air groove 12 from leaking from the sealing barrel 5. The following solution is used to solve the problem.

[0038] See also Figures 1 to 6, the basis for combined implementation is different in that a groove 17 is provided on one end surface of the sealing barrel 5, a sealing groove 18 is provided on the inner wall of the groove 17, a notch 20 is provided inside the top block 7, a slider 21 matching it is slidably connected inside the notch 20, a spring 22 is elastically connected between the slider 21 and the notch 20, the slider 21 is elastically connected to the notch 20 through the spring 22, a sealing ring 23 that is sealed with the sealing groove 18 is fixedly connected to the surface of the slider 21, and the threaded rod 6 rotates outward from the sealing barrel 5, at this time, the connecting rod 19 moves with the top block 7 to move into the groove 17, during the movement of the top block 7, the sealing ring 23 and the slider 21 are squeezed by the inner wall of the groove 17 and move into the notch 20 to compress the spring 22, when the top block 7 moves into the groove 17, the sealing ring 23 and the slider 21 are reset under the action of the spring 22, the sealing ring 23 is reset and sealed with the sealing groove 18, the sealing of the cylinder body 4 is ensured, and then the normal use of the cylinder body 4 is ensured.

[0039] The end surfaces of the slider 21 are all provided with rounded corners, and the inner wall of the sealing groove 18 is also provided with rounded corners. The rounded corner design facilitates the matching or separation of the sealing ring 23 and the sealing groove 18.

[0040] The utility model uses steps as follows: when the crawler structure of the pneumatic crawler drilling vehicle is in use, the cylinder body 4 is used, and the external steel pipe is inserted into the rotating rod 9 through the movable groove 25, so that the rotating disk 8 rotates and drives the threaded rod 6 to rotate outside the sealing barrel 5. At this time, the connecting rod 19 moves and drives the top block 7 to move into the slot 17. During the movement of the top block 7, the sealing ring 23 and the slider 21 are squeezed by the inner wall of the slot 17 and move into the notch 20 to compress the spring 22. When the top block 7 moves into the slot 17, the sealing ring 23 and the slider 21 are reset under the action of the spring 22. , the sealing ring 23 is reset and sealed with the sealing groove 18. In this scheme, the threaded rod 6 rotates toward the outside of the sealing barrel 5. At this time, the connecting rod 19 moves and carries the top block 7 to move into the slot 17. During the movement of the top block 7, the sealing ring 23 and the slider 21 are squeezed by the inner wall of the slot 17 and move into the notch 20 to compress the spring 22. When the top block 7 moves into the slot 17, the sealing ring 23 and the slider 21 are reset under the action of the spring 22, and the sealing ring 23 is reset and sealed with the sealing groove 18, thereby ensuring the sealing of the cylinder body 4 and further ensuring the normal use of the cylinder body 4.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A crawler structure for a pneumatic crawler drilling vehicle, comprising a chassis as a whole (1), characterized in that: A crawler body (2) is provided on both sides of the chassis (1), a tensioning device (3) is provided inside the chassis (1), a cylinder body (4) is provided inside the tensioning device (3), one end of the cylinder body (4) is fixedly connected to a sealing barrel (5), one end of the sealing barrel (5) extends into the interior of the cylinder body (4), and threaded rods (6) and connecting rods (19) are provided on the surfaces of both ends of the sealing barrel (5), respectively, and the threaded rods (6) are threadedly connected to the end surfaces of the sealing barrel (5). , the connecting rod (19) is rotatably connected to the other end surface of the sealing barrel (5), one end of the threaded rod (6) and the connecting rod (19) both extend into the interior of the sealing barrel (5), and the ends of the threaded rod (6) and the connecting rod (19) are fixedly connected, one end of the connecting rod (19) is fixedly connected to a top block (7), one end of the threaded rod (6) is fixedly connected to a rotating disk (8), a plurality of rotating rods (9) are fixedly mounted on the surface of the rotating disk (8), and the surface of the tensioning device (3) is fixedly connected to a tensioning wheel (24); The rotating disk (8) rotates to cause the threaded rod (6) to rotate toward the sealing barrel (5), and the connecting rod (19) rotates to move the top block (7). At this time, the telescopic rod (11) is extended by the thrust of the top block (7) to adjust the tensioning device (3).

2. The crawler structure for a pneumatic crawler drilling vehicle according to claim 1, characterized in that: The cylinder body (4) comprises an air cylinder (10) and a telescopic rod (11), one end of the telescopic rod (11) extends into the interior of the cylinder body (4), and a piston (14) matching the air cylinder (10) is fixedly connected to the surface of one end of the telescopic rod (11), and a first air groove (12) and a second air groove (13) are respectively formed between the two sides of the piston (14) and the air cylinder (10).

3. The crawler structure for a pneumatic crawler drilling vehicle according to claim 2, characterized in that: An air inlet valve (15) communicating with the first air groove (12) is fixedly mounted on one end surface of the air cylinder (10), and an air outlet valve (16) communicating with the second air groove (13) is fixedly mounted on the other end surface of the air cylinder (10).

4. The crawler structure for a pneumatic crawler drilling vehicle according to claim 1, characterized in that: Both side surfaces of the chassis (1) are provided with movable grooves (25) flush with the position of the rotating disk (8).

5. The crawler structure for a pneumatic crawler drilling vehicle according to claim 2, characterized in that: One end of the sealing barrel (5) extends to the interior of the gas cylinder (10) and is located on one side of the piston (14).

6. The crawler structure for a pneumatic crawler drilling vehicle according to claim 1, characterized in that: A groove (17) is formed on one end surface of the sealing barrel (5), a sealing groove (18) is formed on the inner wall of the groove (17), a notch (20) is formed inside the top block (7), a matching slider (21) is slidably connected inside the notch (20), a spring (22) is elastically connected between the slider (21) and the notch (20), the slider (21) is elastically connected to the notch (20) via the spring (22), and a sealing ring (23) is fixedly connected to the surface of the slider (21) and is sealed with the sealing groove (18).

7. The crawler structure for a pneumatic crawler drilling vehicle according to claim 6, characterized in that: The end surfaces of the sliding blocks (21) are all provided with rounded corners, and the inner wall of the sealing groove (18) is also provided with rounded corners.

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