Self-propelled water closet for drift drill and operation method thereof

Abstract

The application discloses a self-walking water closet for a drift drill and an operation method, which comprises a water closet assembly, a sealing assembly and a walking assembly; the water closet assembly is concentrically arranged at the rear part of the sealing assembly, and the walking assembly is concentrically arranged at the front part of the sealing assembly; the self-walking water closet is sleeved into a drill rod; an opening and closing oil cylinder of the water closet assembly can control the sealing plate to open or close the water closet body; the sealing assembly rubber cylinder can be locked or released under the action of high-pressure oil; and the walking assembly can drive the whole water closet to walk along the drill rod. The water closet walks on the drill rod column, and the installation of the subsequent drill rod can be completed, and the water closet does not need to be disassembled, so that the labor intensity can be reduced, the workers can be prevented from being splashed by water, the working environment can be improved, and the connection between the water closet and the tail end of the drill rod can be quickly completed.

Description

Technical Field

[0001] This invention relates to the technical field of coal mine tunnel drilling equipment, specifically to a self-propelled water-powered tunnel drilling rig and its operation method. Background Technology

[0002] Currently, during underground tunnel drilling in coal mines, the water supply device is directly installed at the end of the drill rod's female thread. Due to the use of a threaded seal connection and the relatively long threads, loading and unloading the water supply device requires manual rotation of 6-7 turns. During drilling, drill rods need to be continuously connected, necessitating frequent water supply operations, consuming significant auxiliary time and impacting drilling efficiency. As the drill rod diameter increases, the accompanying water supply device becomes increasingly heavy, increasing the labor intensity for workers and posing a safety hazard as the device is prone to falling and injuring personnel. Furthermore, unloading the water supply device requires multiple rotations, necessitating continuous operation near the device, resulting in water accumulation inside the drill rod that wets workers, creating a poor working environment. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a self-propelled water canister for tunnel drilling rigs and its operation method, overcoming the technical difficulties of time-consuming and labor-intensive water canister loading and unloading during drilling operations. In this invention, the water canister moves in a controlled manner on the drill rod string, requiring only the subsequent installation of the drill rod without disassembling the water canister; reducing the labor intensity of workers; and preventing workers from getting wet, improving the working environment, and allowing for quick connection between the water canister and the end of the drill rod.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A self-propelled water-powered component for a tunnel drilling rig includes a water-powered component, a sealing component, and a traveling component; the water-powered component is concentrically installed at the rear of the sealing component, and the traveling component is concentrically installed at the front of the sealing component.

[0006] The water toilet assembly includes a water toilet body, a sealing plate, an opening and closing cylinder, and a sealing ring; one end of the sealing plate is installed on the side wall of the water toilet body via a pin, and the other end of the sealing plate is connected to one end of the opening and closing cylinder, which is connected to the water toilet body; a front sealing ring and a rear sealing ring are installed at the front and rear ends of the water toilet body; by extending and retracting the opening and closing cylinder, the sealing plate rotates around the pin, thereby sealing or opening the rear end of the water toilet body.

[0007] The sealing assembly includes an outer cylinder, a front outer end cap, a front inner end cap, an inner cylinder, a rubber sleeve, a support cylinder, a rear outer end cap, a rear inner end cap, and a rotary sealing ring. All components of the sealing assembly are coaxially installed, from the inside out as the rubber sleeve, support cylinder, inner cylinder, and outer cylinder. A rotary sealing ring is installed between the inner cylinder and the outer cylinder, and is positioned by the front and rear outer end caps at both ends. The rubber sleeve is positioned by the front and rear inner end caps at both ends. An oil port is provided on the side of the outer cylinder. The side of the inner cylinder has evenly distributed through holes. The side of the support cylinder has evenly distributed through holes. Under the action of external high-pressure oil, the rubber sleeve deforms and wraps around the internal drill rod.

[0008] The walking assembly includes a fixed base, a walking motor, a motor output wheel, a transmission wheel, a transmission shaft, walking wheels, and a support wheel assembly. The walking motor is mounted on the motor mounting plate of the fixed base, the motor output wheel is mounted on the motor shaft, the motor output wheel meshes with the transmission wheel, the transmission wheel drives the walking wheels to rotate through the transmission shaft, the walking wheels are mounted on the walking wheel frame of the fixed base, and the support wheel assembly is mounted on the support wheel frame of the fixed base.

[0009] The present invention also includes the following technical features:

[0010] Specifically, the sealing plate is bent so that it can rotate to seal the rear end of the water body; two sets of opening and closing hydraulic cylinders are symmetrically arranged on both sides of the sealing plate.

[0011] Specifically, the outer wall of the inner cylinder is provided with two annular bosses, and the through holes evenly distributed on the side wall of the inner cylinder are located between the two bosses; the two rotary sealing rings are respectively located between the annular front outer end cap and one boss and between the annular rear outer end cap and the other boss.

[0012] Specifically, the front inner end cap is annular and sealed at the front end of the inner cylinder and the rubber tube; the rear inner end cap is annular and sealed at the rear end of the inner cylinder and the rubber tube; there is an annular space between the middle of the inner cylinder and the rubber tube, and the support sleeve is fitted on the outer wall of the middle part of the rubber tube.

[0013] Specifically, the fixed base includes a motor mounting plate, a docking flange, a mounting cylinder, a traveling wheel frame, and a support wheel frame; the rear end of the horizontal motor mounting plate is vertically connected to the docking flange, the rear of the docking flange is coaxially connected to the sealing assembly, and the front of the docking flange is coaxially connected to the mounting cylinder; the traveling wheel frame and the support wheel frame are arranged circumferentially at the opening on the side wall of the mounting cylinder.

[0014] Specifically, the support wheel assembly includes a support wheel and a movable support wheel bracket. The movable support wheel bracket has two cylindrical guide rails at the rear. The support wheel frame of the fixed seat has two round holes and a set screw. Under the action of the set screw, the movable support wheel frame can slide on the support wheel frame of the fixed seat. By tightening the set screw, the clamping force of the support wheel on the drill rod can be adjusted to meet drilling construction at different angles.

[0015] Specifically, the traveling wheel and support wheel have arc-shaped grooves with a diameter equal to that of the drill rod.

[0016] Specifically, the transmission ratio between the motor output wheel and the transmission wheel is 1:2.

[0017] The self-propelled water-powered operation method for the tunnel drilling rig includes the following steps:

[0018] The travel assembly is inserted forward into the drill pipe, the opening and closing cylinder retracts, and the sealing plate and water body are closed; the travel motor rotates forward, and when the sealing plate encounters resistance at the rear end of the drill pipe, the travel motor pressure reaches the overflow value and then stops.

[0019] High-pressure oil enters the sealing assembly, causing the rubber sleeve to seize the drill rod under pressure; water drilling begins.

[0020] After the drill rod is completed, the opening and closing cylinder extends, opens the sealing plate, connects the subsequent drill rod, the high pressure oil of the rubber sleeve stops, and the rubber sleeve releases the drill rod;

[0021] The travel motor reverses, the travel assembly moves on its own, the rubber sleeve moves backward along the drill rod, and stops moving after the travel distance reaches the length of one drill rod detected by the rotary encoder;

[0022] Repeat the above steps to continue drilling.

[0023] Compared with the prior art, the present invention has the following technical effects:

[0024] This invention avoids the need to disassemble the water pipe during drilling, allowing the water pipe to travel directly along the drill string to the end of the drill pipe.

[0025] This invention can significantly reduce the labor intensity of workers and enable automated operation.

[0026] This invention can effectively prevent workers from getting wet from the water inside the drill rod when disassembling the water pipe. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a self-propelled water toilet structure.

[0028] Figure 2 This is a schematic diagram of the water toilet assembly structure.

[0029] Figure 3 This is a schematic diagram of the sealing assembly structure.

[0030] Figure 4 This is a schematic diagram of the walking component structure.

[0031] Figure 5 This is a schematic diagram of the fixed frame structure.

[0032] Figure 6 A schematic diagram of the supporting wheel assembly structure.

[0033] The meanings of the labels in the diagram are as follows:

[0034] 1. Water toilet assembly, 2. Sealing assembly, 3. Walking assembly; 101. Water toilet body, 102. Sealing plate, 103. Opening and closing cylinder, 104. Front sealing ring, 105. Rear sealing ring; 201. Outer cylinder, 202. Front outer end cover, 203. Front inner end cover, 204. Inner cylinder, 205. Rubber tube, 206. Support cylinder, 207. Rear outer end cover, 208. Rear inner end cover, 209. Rotary sealing ring; 301. Fixed base, 302. Walking motor, 303. Motor output wheel, 304. Transmission wheel, 305. Transmission shaft, 306. Walking wheel, 307. Support wheel set; 30101. Motor mounting plate, 30102. Walking wheel frame, 30103. Support wheel frame; 30701. Support wheel, 30702. Movable support wheel bracket. Detailed Implementation

[0035] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0036] Example 1:

[0037] like Figures 1 to 6 As shown, this embodiment provides a self-propelled water conveyance for a tunnel drilling rig, including a water conveyance assembly 1, a sealing assembly 2, and a walking assembly 3; the water conveyance assembly 1 is concentrically installed at the rear of the sealing assembly 2 by bolts, and the walking assembly 3 is concentrically installed at the front of the sealing assembly 2 by bolts.

[0038] The water toilet assembly 1 includes a water toilet body 101, a sealing plate 102, an opening and closing cylinder 103, and a sealing ring. One end of the sealing plate 102 is installed on the side wall of the water toilet body 101 via a pin, and the other end of the sealing plate 102 is connected to one end of the opening and closing cylinder 103, which is connected to the water toilet body 101 at the other end. A front sealing ring 104 and a rear sealing ring 105 are installed at the front and rear ends of the water toilet body 101. By extending and retracting the opening and closing cylinder 103, the sealing plate 102 rotates 90 degrees around the pin, thereby sealing or opening the rear end of the water toilet body 101.

[0039] Sealing assembly 2 includes an outer cylinder 201, a front outer end cap 202, a front inner end cap 203, an inner cylinder 204, a rubber sleeve 205, a support cylinder 206, a rear outer end cap 207, a rear inner end cap 208, and a rotary sealing ring 209. All components of sealing assembly 2 are coaxially mounted, from the inside out as follows: rubber sleeve 205, support cylinder 206, inner cylinder 204, and outer cylinder 201. A rotary sealing ring 209 is installed between the inner cylinder 204 and the outer cylinder 201, and is positioned by the front outer end cap 202 and the rear outer end cap 207 at both ends. The rubber sleeve 205 is formed by the front and rear outer end caps 202 and 207 at both ends. The inner end cap 203 and the rear inner end cap 208 are pressed and positioned; an oil port is provided on the side of the outer cylinder 201; the inner cylinder 204 has evenly distributed through holes on the side; the support cylinder 206 has evenly distributed through holes on the side; under the action of external high-pressure oil, the rubber sleeve 205 of the sealing assembly 2 deforms and wraps around the internal drill rod; when the rubber sleeve 205 inside the sealing assembly 2 is subjected to high-pressure oil, it locks the drill rod, and the rubber sleeve 205 and the outer cylinder 201 can rotate relative to each other. When the rubber sleeve 205 rotates with the drill rod, the outer cylinder 201 and the sealing assembly 2 and the water supply assembly 1 connected to the outer cylinder 201 remain stationary.

[0040] The walking assembly 3 includes a fixed base 301, a walking motor 302, a motor output wheel 303, a transmission wheel 304, a transmission shaft 305, a walking wheel 306, and a support wheel set 307. The walking motor 302 is mounted on the motor mounting plate 30101 of the fixed base 301. The motor output wheel 303 is bolted to the motor shaft and meshes with the transmission wheel 304. The transmission wheel 304 drives the walking wheel 306 to rotate through the transmission shaft 305. The walking wheel 306 is mounted on the walking wheel frame 30102 of the fixed base 301. The support wheel set 307 is mounted on the support wheel frame 30103 of the fixed base 301.

[0041] The sealing plate 102 is bent so that it can rotate to seal the rear end of the water body 101; two sets of opening and closing hydraulic cylinders 103 are symmetrically arranged on both sides of the sealing plate 102.

[0042] The outer wall of the inner cylinder 204 is provided with two annular bosses, and the through holes evenly distributed on the side wall of the inner cylinder 204 are located between the two bosses; the two rotating sealing rings 209 are respectively located between the annular front outer end cover 202 and one boss and between the annular rear outer end cover 207 and another boss.

[0043] The front inner end cap 203 is annular and sealed at the front end of the inner cylinder 204 and the rubber tube 205; the rear inner end cap 208 is annular and sealed at the rear end of the inner cylinder 204 and the rubber tube 205; there is an annular space between the middle of the inner cylinder 204 and the rubber tube 205, and the support cylinder 206 is sleeved on the outer wall of the middle part of the rubber tube 205.

[0044] The fixed base 301 includes a motor mounting plate 30101, a docking flange, a mounting cylinder, a traveling wheel frame 30102, and a support wheel frame 30103. The rear end of the horizontal motor mounting plate 30101 is vertically connected to the docking flange, the rear of the docking flange is coaxially connected to the sealing assembly 2, and the front of the docking flange is coaxially connected to the mounting cylinder. The traveling wheel frame 30102 and the support wheel frame 30103 are arranged circumferentially at the opening of the side wall of the mounting cylinder. In this embodiment, one traveling wheel frame 30102 and two support wheel frames 30103 correspond to two sets of support wheel groups arranged on the side wall of the mounting cylinder.

[0045] The support wheel assembly 307 includes a support wheel 30701 and a movable support wheel bracket 30702. The movable support wheel bracket 30702 has two cylindrical guide rails at the rear. The support wheel frame 30103 of the fixed seat 301 has two round holes and a set screw. Under the action of the set screw, the movable support wheel frame 30103 can slide on the support wheel frame 30103 of the fixed seat 301. By tightening the set screw, the clamping force of the support wheel 30701 on the drill rod can be adjusted to meet drilling construction at different angles.

[0046] The traveling wheel 306 and the support wheel 30701 have arc-shaped grooves with a diameter equal to that of the drill rod.

[0047] The transmission ratio between the motor output wheel 303 and the transmission wheel 304 is 1:2.

[0048] In other embodiments, an electric motor can be used instead of a hydraulic motor for walking; different forms of walking wheels and support wheels can be arranged or installed; or other sealing water-containment components and methods can be used; all of these can achieve the effect of this solution.

[0049] Example 2:

[0050] This embodiment provides a self-propelled water-powered operation method for a tunnel drilling rig, including the following steps:

[0051] The travel assembly is inserted forward into the drill pipe, the opening and closing cylinder retracts, and the sealing plate and water body are closed; the travel motor rotates forward, and when the sealing plate encounters resistance at the rear end of the drill pipe, the travel motor pressure reaches the overflow value and then stops.

[0052] High-pressure oil enters the sealing assembly, causing the rubber sleeve to seize the drill rod under pressure; water drilling begins.

[0053] After the drill rod is completed, the opening and closing cylinder extends, opens the sealing plate, connects the subsequent drill rod, the high pressure oil of the rubber sleeve stops, and the rubber sleeve releases the drill rod;

[0054] The travel motor reverses, the travel assembly moves on its own, the rubber sleeve moves backward along the drill rod, and stops moving after the travel distance reaches the length of one drill rod detected by the rotary encoder;

[0055] Repeat the above steps to continue drilling.

[0056] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0057] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0058] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A self-propelled water-powered device for a tunnel drilling rig, characterized in that, It includes a water-filled assembly (1), a sealing assembly (2), and a walking assembly (3); the water-filled assembly (1) is concentrically installed at the rear of the sealing assembly (2), and the walking assembly (3) is concentrically installed at the front of the sealing assembly (2); The water toilet assembly (1) includes a water toilet body (101), a sealing plate (102), an opening and closing cylinder (103), and a sealing ring. One end of the sealing plate (102) is installed on the side wall of the water toilet body (101) via a pin, and the other end of the sealing plate (102) is connected to one end of the opening and closing cylinder (103), and the other end of the opening and closing cylinder (103) is connected to the water toilet body (101). A front sealing ring (104) and a rear sealing ring (105) are installed at the front and rear ends of the water toilet body (101). By extending and retracting the opening and closing cylinder (103), the sealing plate (102) rotates around the pin, thereby sealing or opening the rear end of the water toilet body (101). The sealing assembly (2) includes an outer cylinder (201), a front outer end cap (202), a front inner end cap (203), an inner cylinder (204), a rubber sleeve (205), a support cylinder (206), a rear outer end cap (207), a rear inner end cap (208), and a rotary sealing ring (209); all components of the sealing assembly (2) are coaxially mounted, from the inside to the outside as follows: rubber sleeve (205), support cylinder (206), inner cylinder (204), and outer cylinder (201); the inner cylinder (204) and the outer cylinder (201) A rotary sealing ring (209) is installed between the front and rear outer end caps (202) and the rear outer end cap (207) at the front and rear ends; the rubber cylinder (205) is pressed and positioned by the front inner end cap (203) and the rear inner end cap (208) at the front and rear ends; an oil port is provided on the side of the outer cylinder (201); the side of the inner cylinder (204) has evenly distributed through holes; the side of the support cylinder (206) has evenly distributed through holes; under the action of external high-pressure oil, the rubber cylinder (205) deforms and wraps around the internal drill rod; The walking assembly (3) includes a fixed base (301), a walking motor (302), a motor output wheel (303), a transmission wheel (304), a transmission shaft (305), a walking wheel (306), and a support wheel assembly (307). The walking motor (302) is mounted on the motor mounting plate (30101) of the fixed base (301), the motor output wheel (303) is mounted on the motor shaft, the motor output wheel (303) meshes with the transmission wheel (304), the transmission wheel (304) drives the walking wheel (306) to rotate through the transmission shaft (305), the walking wheel (306) is mounted on the walking wheel frame (30102) of the fixed base (301), and the support wheel assembly (307) is mounted on the support wheel frame (30103) of the fixed base (301).

2. The self-propelled water-powered tunnel drilling rig as described in claim 1, characterized in that, The sealing plate (102) is bent so that it can be rotated to seal the rear end of the water body (101); two sets of opening and closing hydraulic cylinders (103) are symmetrically arranged on both sides of the sealing plate (102).

3. The self-propelled water-powered tunnel drilling rig as described in claim 1, characterized in that, The outer wall of the inner cylinder (204) is provided with two annular bosses, and the through holes evenly distributed on the side wall of the inner cylinder (204) are located between the two bosses; the two rotating sealing rings (209) are respectively located between the annular front outer end cap (202) and one boss and between the annular rear outer end cap (207) and another boss.

4. The self-propelled water-powered tunnel drilling rig as described in claim 3, characterized in that, The front inner end cap (203) is annular and sealed at the front end of the inner cylinder (204) and the rubber tube (205); the rear inner end cap (208) is annular and sealed at the rear end of the inner cylinder (204) and the rubber tube (205); there is an annular space between the middle of the inner cylinder (204) and the rubber tube (205), and the support cylinder (206) is sleeved on the outer wall of the middle part of the rubber tube (205).

5. The self-propelled water-powered tunnel drilling rig as described in claim 1, characterized in that, The fixed base (301) includes a motor mounting plate (30101), a docking flange, a mounting cylinder, a traveling wheel frame (30102), and a support wheel frame (30103); the rear end of the horizontal motor mounting plate (30101) is vertically connected to the docking flange, the rear of the docking flange is coaxially connected to the sealing assembly (2), and the front of the docking flange is coaxially connected to the mounting cylinder; the traveling wheel frame (30102) and the support wheel frame (30103) are arranged circumferentially at the opening of the side wall of the mounting cylinder.

6. The self-propelled water-powered tunnel drilling rig as described in claim 1, characterized in that, The support wheel assembly (307) includes a support wheel (30701) and a movable support wheel bracket (30702). The movable support wheel bracket (30702) has two cylindrical guide rails at the rear. The support wheel frame (30103) of the fixed seat (301) has two round holes and a set screw. Under the action of the set screw, the movable support wheel frame (30103) can slide on the support wheel frame (30103) of the fixed seat (301). By tightening the set screw, the clamping force of the support wheel (30701) on the drill rod can be adjusted to meet the drilling construction at different angles.

7. The self-propelled water-powered tunnel drilling rig as described in claim 1, characterized in that, The traveling wheel (306) and the support wheel (30701) have arc-shaped grooves with a diameter equal to that of the drill rod.

8. The self-propelled water-powered tunnel drilling rig as described in claim 1, characterized in that, The transmission ratio between the motor output wheel (303) and the transmission wheel (304) is 1:

2.

9. The self-propelled water-operated method for tunnel drilling rigs according to claim 1, characterized in that, Includes the following steps: The travel assembly is inserted forward into the drill pipe, the opening and closing cylinder retracts, and the sealing plate and water body are closed; the travel motor rotates forward, and when the sealing plate encounters resistance at the rear end of the drill pipe, the travel motor pressure reaches the overflow value and then stops. High-pressure oil enters the sealing assembly, causing the rubber sleeve to seize the drill rod under pressure; water drilling begins. After the drill rod is completed, the opening and closing cylinder extends, opens the sealing plate, connects the subsequent drill rod, the high pressure oil of the rubber sleeve stops, and the rubber sleeve releases the drill rod; The travel motor reverses, the travel assembly moves on its own, the rubber sleeve moves backward along the drill rod, and stops moving after the travel distance reaches the length of one drill rod detected by the rotary encoder; Repeat the above steps to continue drilling.

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