Drilling dust suppression structure of small down-the-hole drill

Abstract

The utility model relates to a small down-the-hole drill drilling dust suppression structure which comprises a drilling machine support, a drilling machine assembly for installing a drilling rod is slidably connected to the drilling machine support, a dust cover extends from the front end of the drilling machine support, a water spraying structure is arranged on one side of the drilling machine support and comprises a nozzle arranged in the dust cover in a penetrating mode, and the outer side of the nozzle communicates with a water source. A water supply structure for driving water flow to flow towards the nozzle is arranged between the nozzle and the water source, the water supply structure is in transmission connection with a linkage structure, the linkage structure comprises a clamping jaw and an abutting rolling wheel, the clamping jaw is rotationally connected to the front end of the drilling machine support and arranged on a drilling rod of the drilling machine assembly in a sleeving mode, and the clamping jaw has elasticity and exerts abutting force towards the drilling rod; the abutting rollers are rotationally connected to the clamping jaws in the extending direction of the drill rod. When the drill rod rotates to drive the clamping jaw to rotate, the water supply structure supplies water to the nozzle. The dust suppression structure capable of being matched with the slope drilling machine is arranged, dust generated in the drilling process can be effectively controlled, and the effect of preventing the dust from diffusing is achieved.

Description

Technical Field

[0001] This application relates to the field of slope drilling technology, and in particular to a dust suppression structure for drilling with a small down-the-hole drill. Background Technology

[0002] During highway construction, drilling operations are often required on slopes. Slope drilling differs from drilling on a flat surface, which is relatively smooth. Slopes are sloping surfaces and are often rough rock walls. The equipment required for slope drilling differs from standard equipment.

[0003] Existing slope drilling equipment lacks suitable dust suppression components due to the inability to purchase them on the market, resulting in a deterioration of the working environment, failure to meet environmental protection standards, and harm to workers' health. In response to the aforementioned issues, the applicant proposes a dust suppression structure that can be adapted to slope drilling rigs, effectively controlling the dust generated during drilling and preventing its spread. Utility Model Content

[0004] In order to adapt to the dust suppression structure of slope drilling rigs and effectively control the dust generated during drilling and prevent its spread, this application provides a dust suppression structure for drilling small down-the-hole drilling rigs.

[0005] The dust suppression structure for drilling with a small down-the-hole drill rig provided in this application adopts the following technical solution:

[0006] A dust suppression structure for a small down-the-hole drill includes a drill support frame, a drill assembly for mounting drill rods slidably connected to the drill support frame, a dust cover extending from the front end of the drill support frame, and a water spray structure on one side of the drill support frame. The water spray structure includes nozzles inserted inside the dust cover, with a water source connected to the outside of the nozzles. A water supply structure is provided between the nozzles and the water source to drive water flow toward the nozzles. The water supply structure is driven by a linkage structure, which includes a clamping claw and abutment rollers. The clamping claw is rotatably connected to the front end of the drill support frame and sleeved on the drill rod of the drill assembly. The clamping claw is elastic and applies abutment force toward the drill rod. The abutment rollers are rotatably connected to the clamping claw in the direction of the drill rod's extension. When the drill rod rotates, it drives the clamping claw to rotate, and the water supply structure supplies water to the nozzles.

[0007] By adopting the above technical solution, the dust cover extending from the front end of the drilling rig support can effectively limit the spread of dust, while the nozzles in the water spraying structure spray water mist directly onto the drilling position, which can significantly suppress dust and reduce the impact on the surrounding environment. When the drill rod rotates, the clamping claws rotate accordingly, thereby driving the water supply structure to work. This design realizes the synchronous operation of drilling and water spraying dust suppression function, without the need for an additional power source, simplifying the system structure and improving work efficiency.

[0008] Preferably, the dust cover is provided with an elastic support frame, which is fixed to the front end of the drilling rig bracket and extends toward the front end of the dust cover, with a gap between the front end of the support frame and the front end of the dust cover.

[0009] By adopting the above technical solution, a gap is left between the front end of the support frame and the front end of the dust cover, allowing the dust cover to freely expand, contract, and bend within a certain range, adapting to the sealing of irregular rock wall surfaces. With the support of the support frame, even when working on irregular ground, the elastic support frame can ensure that the dust cover is always in the best position, withstanding the pressure from dust and water, and minimizing dust leakage.

[0010] Preferably, the dust cover extends outward in an arc shape.

[0011] Preferably, the linkage structure also includes a rotating bracket, which is rotatably connected to the front end of the drilling rig bracket and sleeved on the drill rod, with the clamping claws respectively fixed to the inner side wall of the rotating bracket.

[0012] Preferably, the water supply structure includes a water pump and a drive wheel. The water pump is fixed to the front end of the drilling rig support, the water inlet is connected to a water source, and the water outlet is connected to a nozzle. The drive wheel is coaxially fixed to the drive shaft of the water pump and is driven by the outer wall of the rotating support.

[0013] Preferably, a support frame is provided at the rear end of the drilling rig assembly.

[0014] Preferably, the water spray structure also includes a water tank connected to the nozzle, with rollers installed at the bottom of the water tank.

[0015] By adopting the above technical solution, rollers are installed at the bottom of the water tank, which makes the water tank easy to move and allows operators to adjust the position of the water tank according to actual needs. This design greatly improves the flexibility of operation, especially when it is necessary to frequently change the drilling position or equipment layout.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] The dust cover extending from the front end of the drilling rig support can effectively limit the spread of dust, while the nozzles in the water spray structure spray water mist directly onto the drilling position, which can significantly suppress dust and reduce the impact on the surrounding environment. When the drill rod rotates, the clamping claws rotate accordingly, thereby driving the water supply structure to work. This design realizes the synchronous operation of drilling and water spray dust suppression, without the need for an additional power source, simplifying the system structure and improving work efficiency.

[0018] There is a gap between the front end of the support frame and the front end of the dust cover, which allows the dust cover to freely expand, contract and bend within a certain range, adapting to the sealing of irregular rock wall surfaces. With the support of the support frame, even when working on irregular ground, the elastic support frame can ensure that the dust cover is always in the best position, withstand the pressure from dust and water, and minimize dust leakage.

[0019] The water tank is equipped with casters at the bottom, which allows the tank to be moved easily and the operator to adjust the position of the tank according to actual needs. This design greatly improves the flexibility of operation, especially when it is necessary to frequently change the drilling position or equipment layout. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0021] Figure 2 This is a partial schematic diagram of an embodiment of this application;

[0022] Figure 3 This is a partial schematic diagram of an embodiment of this application.

[0023] Explanation of reference numerals in the attached drawings: 1. Drilling rig support; 2. Drilling rig components; 3. Dust cover; 4. Water spray structure; 41. Nozzle; 42. Water tank; 5. Water supply structure; 51. Water pump; 52. Drive wheel; 6. Linkage structure; 61. Clamping claw; 62. Abutment roller; 63. Rotating support; 7. Support frame; 8. Support skeleton. Detailed Implementation

[0024] The present application will be further described in detail below with reference to the accompanying drawings.

[0025] This application discloses a drilling dust suppression structure for a small down-the-hole drill rig, referring to... Figure 1 It includes a drill rig bracket 1, a support frame 7 at the rear end of the drill rig assembly 2, a drill rig assembly 2 for mounting drill rods slidably connected on the drill rig bracket 1, and a dust cover 3 extending from the front end of the drill rig bracket 1 to prevent dust from spreading.

[0026] Reference Figure 1 The dust cover 3 is equipped with an elastic support frame 8. The support frame 8 is fixed to the front end of the drill rig support 1 and extends toward the front end of the dust cover 3. There is a gap between the front end of the support frame 8 and the front end of the dust cover 3, so that the front end of the dust cover 3 can collapse according to the shape of the rock wall, resulting in a better sealing effect. The dust cover 3 extends outward in an arc shape, which, together with the support frame 8, can be adapted to different distances between the drill rig support 1 and the rock wall. When under pressure, it collapses outward to avoid contact with the drill rod and damage.

[0027] Supported by the internal support frame 8, the dust cover 3 has good support. Water can be sprayed into the dust cover 3 through the water spray structure 4 on one side of the drilling rig to reduce dust. The water spray structure 4 includes a nozzle 41 and a water tank 42. The nozzle 41 is inserted into the dust cover 3 and can atomize and spray water to reduce dust inside the dust cover 3. The water tank 42 is placed on one side of the drilling rig bracket 1 and the water tank 42 can be improved by setting rollers. The water tank 42 is connected to the nozzle 41 and a water supply structure 5 is provided between them.

[0028] The water supply structure 5 includes a water pump 51 and a drive wheel 52. The water pump 51 is fixed to the front end of the drilling rig support 1, the water inlet is connected to the water tank 42, and the water outlet is connected to the nozzle 41. The drive wheel 52 is coaxially fixed to the drive shaft of the water pump 51 and rotates or stops synchronously with the drill rod through the linkage structure 6.

[0029] The linkage structure 6 includes a rotating bracket 63, clamping claws 61, and abutting rollers 62. The rotating bracket 63 is rotatably connected to the front end of the drill rig bracket 1 and sleeved on the drill rod. The drive wheel 52 is connected to the outer side wall of the rotating bracket 63. The clamping claws 61 are fixed to the inner side wall of the rotating bracket 63, and the clamping claws 61 are elastic and apply abutting force towards the drill rod. The clamping claws 61 use clamping force to link the drill rod and the rotating bracket 63. The abutting rollers 62 are rotatably connected to the clamping claws 61 in the direction of drill rod extension, so that the forward and backward movement of the drill rod is not affected by the clamping claws 61.

[0030] The working process of this application is as follows: The erected drilling rig assembly 2 is fastened to the rock wall through the dust cover 3 and the rock wall is sealed by the soft edge at the front end. The drill rod is inserted between the clamping claws 61. Then the drilling rig assembly 2 is started. The drilling rig assembly 2 drives the drill rod to rotate and move forward. The force of the drill rod rotation is applied to the clamping claws 61, thereby mobilizing the rotating support 63 to rotate. The water pump 51 pumps water from the water tank 42 to the nozzle 41 through the driving force brought by the rotating support 63. The water mist combines with the dust and settles into the dust cover 3. Because the dust cover 3 is supported by the supporting frame 8, the increased weight of the dust and water it bears will prevent the dust cover 3 from deforming, thus ensuring that the drilling is not affected. When the drilling is finished, the dust cover 3 can be knocked out to remove the combination of dust and water.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust suppression structure for drilling with a small down-the-hole drill rig, comprising a drill rig support (1), and a drill assembly (2) for mounting drill rods slidably connected on the drill rig support (1), characterized in that: The front end of the drilling rig support (1) is extended with a dust cover (3). A water spray structure (4) is provided on one side of the drilling rig support (1). The water spray structure (4) includes a nozzle (41) inserted inside the dust cover (3). The outside of the nozzle (41) is connected to a water source. A water supply structure (5) is provided between the nozzle (41) and the water source to drive the water flow toward the nozzle (41). The water supply structure (5) is connected to a linkage structure (6). The linkage structure (6) includes a clamping claw (61) and an abutting roller (62). The clamping claw (61) is rotatably connected to the front end of the drilling rig support (1) and sleeved on the drill rod of the drilling rig assembly (2). The clamping claw (61) is elastic and applies abutting force toward the drill rod. The abutting roller (62) is rotatably connected to the clamping claw (61) in the direction of the extension of the drill rod. When the drill rod rotates, it drives the clamping claw (61) to rotate. The water supply structure (5) supplies water to the nozzle (41).

2. The dust suppression structure for drilling with a small down-the-hole drill rig according to claim 1, characterized in that: The dust cover (3) is provided with an elastic support frame (8). The support frame (8) is fixed to the front end of the drilling rig bracket (1) and extends toward the front end of the dust cover (3). There is a gap between the front end of the support frame (8) and the front end of the dust cover (3).

3. The dust suppression structure for drilling with a small down-the-hole drill rig according to claim 2, characterized in that: The dust cover (3) extends outward in an arc shape.

4. The dust suppression structure for drilling with a small down-the-hole drill rig according to claim 1, characterized in that: The linkage structure (6) also includes a rotating bracket (63), which is rotatably connected to the front end of the drilling rig bracket (1) and sleeved on the drill rod. The clamping claws (61) are respectively fixed to the inner side wall of the rotating bracket (63).

5. The dust suppression structure for drilling with a small down-the-hole drill rig according to claim 4, characterized in that: The water supply structure (5) includes a water pump (51) and a drive wheel (52). The water pump (51) is fixed to the front end of the drilling rig support (1), the inlet is connected to the water source, and the outlet is connected to the nozzle (41). The drive wheel (52) is coaxially fixed to the drive shaft of the water pump (51), and the drive wheel (52) is connected to the outer wall of the rotating support (63).

6. The dust suppression structure for drilling with a small down-the-hole drill rig according to claim 1, characterized in that: The drilling rig assembly (2) is equipped with a support frame (7) at its rear end.

7. The dust suppression structure for drilling with a small down-the-hole drill rig according to claim 1, characterized in that: The water spray structure (4) also includes a water tank (42) connected to the nozzle (41), and a roller is provided at the bottom of the water tank (42).

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