A shale gas drilling rig with automatic cleaning function

Abstract

The present invention discloses a shale gas drilling rig with automatic cleaning function, which relates to the technical field of shale gas mining, and comprises a bottom plate, a fixed shell is provided above the bottom plate, a movable rod is fixedly connected to the fixed shell, and a movable groove is provided at one end of the movable rod. The present invention sets an anti-splash mechanism, starts an electric telescopic rod to drive the movable rod to move, the movable rod moves and the fixed shell moves, and as the output end of the electric telescopic rod continues to move, the electric telescopic rod drives the circular block to move, the circular block moves and drives the L-shaped rod and the sliding rack to move, the sliding rack moves and drives two fixed gears to rotate at the same time, the two fixed gears rotate and drive two rotating columns and two partitions to rotate, the two partitions rotate and drive to close, forming a complete circular ring, so that the circular ring-shaped partition can prevent water stains from splashing onto the cleaned part of the drill bit, thereby improving the cleaning effect of the drill bit.

Description

Technical Field

[0001] The invention relates to the technical field of shale gas exploitation, and in particular to a shale gas exploitation drilling rig with an automatic cleaning function. Background Art

[0002] Shale gas refers to natural gas of biological origin, pyrolysis origin or a mixture of the two that is rich in organic matter, mature dark mud shale or high-carbon mud shale. Due to the adsorption of organic matter or the existence of cracks and matrix pores in the rock, it stores and preserves natural gas of certain commercial value. When detecting and exploiting it, it is generally necessary to drill holes in the corresponding land rocks.

[0003] A Chinese patent with announcement number CN212201916U discloses a shale gas exploitation device, including a frame, a slide guide rail is fixedly installed on the side inner wall of the frame, a slide groove is opened on the side of the slide guide rail, the inner wall of the slide groove is connected to a motor support beam, a motor is fixedly installed on the upper surface of the motor support beam, a connecting rod is threadedly connected to the output shaft of the motor, a threaded blade is fixedly installed on the outer surface of the connecting rod, and a drill bit is threadedly connected to the lower end of the connecting rod.

[0004] However, the above invention has the following shortcomings: when using existing drilling rigs, most of them will use a swinging nozzle to clean the raised drill bit. Since the sewage used to flush the drill bit will splash everywhere, a large amount of sewage will be attached to the cleaned part of the drill bit, and the sewage on the drill bit needs to be wiped dry manually, thereby reducing the cleaning effect of the drill bit. Summary of the invention

[0005] The purpose of the present invention is to provide a shale gas drilling rig with an automatic cleaning function. While the electric telescopic rod drives the fixed shell to wrap the drill bit, it can drive the L-shaped rod and the sliding rack to drive the two fixed gears to rotate. The two fixed gears drive the two rotating columns and the two partitions to rotate, so that the two partitions are combined into a circular shape, so that the circular partition can prevent water stains from splashing onto the cleaned part of the drill bit, thereby improving the cleaning effect of the drill bit, so as to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the present invention is: a shale gas drilling rig with automatic cleaning function, comprising a bottom plate, a fixed shell is arranged above the bottom plate, a movable rod is fixedly connected to the fixed shell, one end of the movable rod is provided with a movable groove, the movable groove is slidably connected with the fixed rod, and further comprising;

[0007] A support rod, wherein the bottom end of the support rod is fixedly connected to the top of the bottom plate, and one end of the fixing rod is fixedly connected to one side of the support rod;

[0008] An anti-splashing mechanism, the anti-splashing mechanism is located on the fixed shell;

[0009] A cleaning mechanism, the cleaning mechanism being located on the fixed shell;

[0010] The anti-splashing mechanism includes a fixed block fixedly connected to the inner wall of the fixed shell, the top of the fixed block is rotatably connected to two rotating columns, the two rotating columns are fixedly sleeved with partitions, the two partitions are semicircular, the tops of the two rotating columns are keyed with fixed gears, the inner wall of the fixed shell is provided with a sliding hole, the sliding hole is slidably connected with a sliding rack, the two fixed gears are meshed with the sliding rack, one end of the sliding rack is slidably sleeved with an L-shaped rod, the top of the movable rod is fixedly connected to an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected to a circular block, and the top of the L-shaped rod is fixedly connected to the cylindrical outer wall of the circular block.

[0011] Preferably, a U-shaped block is slidably sleeved on the outer cylindrical wall of the output end of the electric telescopic rod, and both ends of the U-shaped block are fixedly connected to one side of the support rod. The output end of the electric telescopic rod is sleeved with a telescopic spring, and both ends of the telescopic spring are respectively fixedly connected to the circular block and the U-shaped block.

[0012] Preferably, the tops of the two partitions are fixedly connected with two fixing columns, the tops of every two fixing columns are commonly fixedly connected with an arc-shaped water-absorbing sponge, and the two arc-shaped water-absorbing sponges are both semicircular in shape.

[0013] Preferably, a lifting assembly is installed on the support rod, and a drilling rig assembly is installed on the lifting assembly.

[0014] Preferably, the cleaning mechanism includes a rotating unit, a driving unit and a reciprocating sliding unit, the rotating unit includes an arc-shaped slider rotatably connected to the bottom of the fixed shell, the inner wall of the arc-shaped slider is fixedly connected to an arc-shaped brush, the cylindrical outer wall of the fixed shell is fixedly connected to two mounting blocks, the tops of the two mounting blocks are each provided with a rotating hole, the two rotating holes are each rotatably connected to a rotating shaft, the bottom ends of the two rotating shafts are each fixedly connected to a rotating wheel, the two rotating wheels are both fitted with the arc-shaped slider, and the top ends of the two rotating shafts are keyed to a driven bevel gear.

[0015] Preferably, the driving unit includes a fixed plate fixedly connected to the outer cylindrical wall of the fixed shell, two movable holes are opened on one side of the fixed plate, two rotating rods are rotatably connected in the two movable holes, one end of the two rotating rods are keyed to a driving bevel gear, the two driving bevel gears are respectively meshed with the two driven bevel gears, a belt transmission assembly is commonly installed on the two rotating rods, one side of the fixed plate is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to the other end of one of the rotating rods.

[0016] Preferably, a scraper is fixedly connected to the inner wall of the arc-shaped brush, and the scraper is spiral-shaped.

[0017] Preferably, the reciprocating sliding unit includes a movable block slidably connected to the fixed plate, the top of the movable block is fixedly connected to a mounting column, the top of the mounting column is fixedly connected to a fixed sleeve, a sliding rod is slidably connected in the fixed sleeve, an arc-shaped hole is opened on the cylindrical outer wall of the fixed shell, one end of the sliding rod passes through the arc-shaped hole and is rotatably connected to an arc-shaped water spray pipe, the top of the arc-shaped water spray pipe is fixedly connected to a water inlet joint, one side of the movable block is fixedly connected to an L-shaped connecting rod, one end of the L-shaped connecting rod is rotatably connected to a driving rod, and one end of the driving rod is fixedly connected to the other end of the other rotating rod.

[0018] Preferably, two arc-shaped seats are slidably sleeved on the arc-shaped water spray pipe, and the two arc-shaped seats are fixedly connected to the inner wall of the fixed shell.

[0019] The present invention provides a shale gas drilling rig with automatic cleaning function through improvement, which has the following improvements and advantages compared with the prior art:

[0020] First, the present invention sets an anti-splashing mechanism, starts the electric telescopic rod to drive the movable rod to move, and the movable rod moves the fixed shell, the arc-shaped brush, the arc-shaped water spray pipe, the partition and the arc-shaped water-absorbing sponge to move until the fixed shell stops moving. As the output end of the electric telescopic rod continues to move, the electric telescopic rod drives the circular block to move, and the movement of the circular block drives the L-shaped rod and the sliding rack to move. The movement of the sliding rack drives the two fixed gears to rotate at the same time. The rotation of the two fixed gears drives the two rotating columns and the two partitions to rotate. The two partitions rotate and drive to close to form a complete circular ring, so that the circular partition can prevent water stains from splashing onto the cleaned part of the drill bit, thereby improving the cleaning effect of the drill bit.

[0021] Second: The present invention arranges a rotating unit and a driving unit, wherein a driving motor drives one of the rotating rods to rotate, and one of the rotating rods drives the other rotating rod to rotate through a belt transmission assembly. The rotation of the rotating rod drives the rotating shaft and the rotating wheel to rotate through a driving bevel gear and a driven bevel gear. The rotation of the two rotating wheels can drive the arc-shaped slider and the arc-shaped brush to rotate. The rotation of the arc-shaped brush drives the scraper to rotate, thereby achieving cleaning of the drill bit.

[0022] Third: Through the setting of the anti-splashing mechanism, the present invention has another rotating rod rotating the driving rod to rotate in a circle. The rotation of the driving rod drives the movable block to move back and forth through the L-shaped connecting rod. The movement of the movable block drives the installation column and the fixed sleeve to move. The movement of the fixed sleeve drives the sliding rod to move. The movement of the sliding rod drives the arc-shaped water spray pipe to rotate back and forth, thereby achieving the flushing of the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the three-dimensional structure of the arc-shaped brush and the fixed shell in the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the fixed rod, the movable rod and the fixed shell in the present invention;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the driving unit in the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the reciprocating sliding unit in the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the anti-splashing mechanism in the present invention;

[0030] Figure 7 It is a schematic diagram of the three-dimensional structure of the scraper and the fixed shell in the present invention;

[0031] Figure 8 It is a schematic diagram of the cross-sectional planar structure of the L-shaped rod and the sliding rack in the present invention.

[0032] Reference numerals:

[0033] 1. Bottom plate; 101. Support rod; 102. Lifting assembly; 103. Drilling assembly; 2. Fixed rod; 201. Movable rod; 202. Fixed shell; 203. Arc slider; 204. Electric telescopic rod; 205. Telescopic spring; 206. Round block; 207. U-shaped block; 208. Arc brush; 209. Scraper; 3. Fixed block; 301. Rotating column; 302. Partition; 303. Fixed gear; 304. Sliding rack; 305. L-shaped rod; 306. Fixed column ; 307, arc-shaped water-absorbing sponge; 4, fixed plate; 401, rotating rod; 402, driving bevel gear; 403, driven bevel gear; 404, rotating shaft; 405, rotating wheel; 406, mounting block; 407, belt drive assembly; 408, driving motor; 5, movable block; 501, L-shaped connecting rod; 502, driving rod; 503, mounting column; 504, fixed sleeve; 505, sliding rod; 506, arc-shaped water spray pipe; 507, water inlet joint; 508, arc-shaped seat. DETAILED DESCRIPTION

[0034] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0035] The present invention provides a shale gas drilling rig with automatic cleaning function through improvement. The technical solution of the present invention is:

[0036] like Figures 1 to 8 As shown, the embodiment of the present invention provides a shale gas drilling rig with automatic cleaning function, including a bottom plate 1, a fixed shell 202 is provided above the bottom plate 1, a movable rod 201 is fixedly connected to the fixed shell 202, one end of the movable rod 201 is provided with a movable groove, and a fixed rod 2 is slidably connected in the movable groove, and further includes;

[0037] A support rod 101, the bottom end of the support rod 101 is fixedly connected to the top of the bottom plate 1, and one end of the fixing rod 2 is fixedly connected to one side of the support rod 101;

[0038] An anti-splash mechanism, which is located on the fixed shell 202;

[0039] A cleaning mechanism, the cleaning mechanism is located on the fixed shell 202;

[0040] The anti-splash mechanism includes a fixed block 3 fixedly connected to the inner wall of the fixed shell 202, the top of the fixed block 3 is rotatably connected to two rotating columns 301, the two rotating columns 301 are fixedly sleeved with partitions 302, the two partitions 302 are semicircular, the tops of the two rotating columns 301 are keyed to fixed gears 303, the inner wall of the fixed shell 202 is provided with a sliding hole, a sliding rack 304 is slidably connected in the sliding hole, the two fixed gears 303 are meshed with the sliding rack 304, one end of the sliding rack 304 is slidably sleeved with an L-shaped rod 305, the top of the movable rod 201 is fixedly connected to the electric telescopic rod 204, the electric telescopic The output end of the rod 204 is fixedly connected to the circular block 206, and the top end of the L-shaped rod 305 is fixedly connected to the cylindrical outer wall of the circular block 206; through the setting of the anti-splashing mechanism, the electric telescopic rod 204 drives the fixed shell 202 to wrap the drill bit, and can drive the L-shaped rod 305 and the sliding rack 304 to drive the two fixed gears 303 to rotate, and the two fixed gears 303 drive the two rotating columns 301 and the two partitions 302 to rotate, so that the two partitions 302 are combined into a circular ring shape, so that the circular ring-shaped partition 302 can prevent water stains from splashing onto the cleaned part of the drill bit, thereby improving the cleaning effect of the drill bit.

[0041] Furthermore, a U-shaped block 207 is slidably sleeved on the outer cylindrical wall of the output end of the electric telescopic rod 204, and both ends of the U-shaped block 207 are fixedly connected to one side of the support rod 101. The output end of the electric telescopic rod 204 is sleeved with a telescopic spring 205, and both ends of the telescopic spring 205 are respectively fixedly connected to the circular block 206 and the U-shaped block 207; through the setting of the telescopic spring 205, under the action of the elastic force of the telescopic spring 205, when the fixed shell 202 stops moving, the output end of the electric telescopic rod 204 can continue to move, thereby achieving the ability to continue to provide power.

[0042] Furthermore, the tops of the two partitions 302 are fixedly connected to two fixing columns 306, and the tops of every two fixing columns 306 are commonly fixedly connected to an arc-shaped water-absorbing sponge 307, and the shapes of the two arc-shaped water-absorbing sponges 307 are both semicircular; through the arrangement of the arc-shaped water-absorbing sponges 307, the rotation of the two partitions 302 drives the two arc-shaped water-absorbing sponges 307 to rotate, so that the two arc-shaped water-absorbing sponges 307 can be combined into a circular shape, thereby achieving the goal of wiping off the water stains on the drill bit.

[0043] Furthermore, a lifting assembly 102 is installed on the support rod 101, and a drilling assembly 103 is installed on the lifting assembly 102; through the setting of the lifting assembly 102, it cooperates with the drilling assembly 103 to achieve geological sampling. It should be noted that a drill bit is installed at the bottom of the drilling assembly 103.

[0044] Furthermore, the cleaning mechanism includes a rotating unit, a driving unit and a reciprocating sliding unit. The rotating unit includes an arc-shaped slider 203 rotatably connected to the bottom of the fixed shell 202, the inner wall of the arc-shaped slider 203 is fixedly connected to an arc-shaped brush 208, and the cylindrical outer wall of the fixed shell 202 is fixedly connected to two mounting blocks 406, the tops of the two mounting blocks 406 are each provided with a rotating hole, and the two rotating holes are rotatably connected to a rotating shaft 404, the bottom ends of the two rotating shafts 404 are each fixedly connected to a rotating wheel 405, the two rotating wheels 405 are both fitted with the arc-shaped slider 203, and the top ends of the two rotating shafts 404 are keyed to a driven bevel gear 403; through the setting of the cleaning mechanism, the driving unit drives the rotating shaft 404 and the rotating wheel 405 to rotate, and the rotation of the rotating wheel 405 drives the arc-shaped slider 203 and the arc-shaped brush 208 to rotate, so that the arc-shaped brush 208 rotates in a circle, thereby realizing that the arc-shaped brush 208 cleans the surface of the drill bit.

[0045] Furthermore, the driving unit includes a fixed plate 4 fixedly connected to the outer cylindrical wall of the fixed shell 202, and two movable holes are provided on one side of the fixed plate 4. Two rotating rods 401 are rotatably connected in the two movable holes. One end of the two rotating rods 401 is keyed to a driving bevel gear 402. The two driving bevel gears 402 are respectively meshed with two driven bevel gears 403. A belt transmission assembly 407 is installed on the two rotating rods 401. A driving motor 408 is fixedly connected to one side of the fixed plate 4. The output end of the driving motor 408 is fixedly connected to the output end of the fixed plate 4. The other end of one of the rotating rods 401 is connected; through the setting of the driving unit, the driving motor 408 drives the two rotating rods 401 to rotate through the belt transmission assembly 407, and the rotating rod 401 drives the rotating rod 401 and the rotating wheel 405 to rotate through the driving bevel gear 402 and the driven bevel gear 403, so that the two rotating rods 401 can be driven to rotate at the same time. The arc-shaped slider 203 has a notch, and the two rotating wheels 405 are distributed on both sides of the arc-shaped slider 203, which can drive the arc-shaped slider 203 to keep rotating.

[0046] Furthermore, a scraper 209 is fixedly connected to the inner wall of the arc-shaped brush 208, and the scraper 209 is spiral-shaped. Through the arrangement of the scraper 209, the scraper 209 is spiral-shaped, so that the scraper 209 can rotate to scrape impurities on the drill bit.

[0047] Furthermore, the reciprocating sliding unit includes a movable block 5 slidably connected to the fixed plate 4, the top of the movable block 5 is fixedly connected to a mounting column 503, the top of the mounting column 503 is fixedly connected to a fixed sleeve 504, a sliding rod 505 is slidably connected in the fixed sleeve 504, an arc-shaped hole is opened on the cylindrical outer wall of the fixed shell 202, one end of the sliding rod 505 passes through the arc-shaped hole and is rotatably connected to an arc-shaped water spray pipe 506, the top of the arc-shaped water spray pipe 506 is fixedly connected to a water inlet joint 507, and one side of the movable block 5 is fixedly connected to an L-shaped connecting rod 506. The connecting rod 501, one end of the L-shaped connecting rod 501 is rotatably connected to the driving rod 502, and one end of the driving rod 502 is fixedly connected to the other end of another rotating rod 401; through the setting of the reciprocating sliding unit, the rotating rod 401 drives the driving rod 502 to rotate in a circle, and the driving rod 502 drives the movable block 5, the mounting column 503 and the sliding rod 505 to move back and forth through the L-shaped connecting rod 501, and the movement of the sliding rod 505 drives the arc-shaped water spray pipe 506 to rotate back and forth, thereby realizing the arc-shaped water spray pipe 506 to flush the drill bit.

[0048] Furthermore, two arc seats 508 are slidably sleeved on the arc-shaped water spray pipe 506, and the two arc seats 508 are fixedly connected to the inner wall of the fixed shell 202; through the setting of the arc seats 508, the arc-shaped water spray pipe 506 can rotate on the arc seats 508, thereby improving the stability of the arc-shaped water spray pipe 506.

[0049] Specific implementation steps: drive the lifting component 102 to drive the drilling component 103 to move downward to drill a hole. When the drilling component 103 completes drilling, start the electric telescopic rod 204 to drive the movable rod 201 to move. The movable rod 201 moves the fixed shell 202, the arc brush 208, the arc spray pipe 506, the partition 302 and the arc absorbent sponge 307 until the fixed shell 202 moves to a position co-centered with the drilling component 103, so that the movable rod 201 moves to the limit end of the fixed rod 2 and cannot move further, and the sliding rack 304 also moves to the limit end of the L-shaped rod 305. As the output end of the electric telescopic rod 204 continues to move, the electric telescopic rod 204 The rod 204 drives the circular block 206 to move, and the circular block 206 drives the telescopic spring 205 to stretch and elastically deform, and the circular block 206 drives the L-shaped rod 305 to move, and the L-shaped rod 305 moves to pull the sliding rack 304 to move, and the sliding rack 304 moves to drive the two fixed gears 303 to rotate at the same time, and the two fixed gears 303 rotate to drive the two rotating columns 301 and the two partitions 302 to rotate, and the two partitions 302 rotate to drive them to close to form a complete circle, and the driving motor 408 is started to drive one of the rotating rods 401 to rotate, and one of the rotating rods 401 drives the other rotating rod through the belt transmission assembly 407 401 rotates, the rotating rod 401 rotates through the driving bevel gear 402 and the driven bevel gear 403 to drive the rotating shaft 404 and the rotating wheel 405 to rotate, the two rotating wheels 405 rotate to drive the arc slider 203 and the arc brush 208 to rotate, the arc brush 208 rotates to drive the scraper 209 to rotate, and since the scraper 209 is spiral, it can squeeze the impurities attached to the drill bit downward until the impurities fall off, the other rotating rod 401 rotates to drive the driving rod 502 to rotate in a circle, the driving rod 502 rotates through the L-shaped connecting rod 501 to drive the movable block 5 to move back and forth, the movable block 5 moves to drive the mounting column 503 and the fixed sleeve 504 to move, and the fixed The movement of the fixed sleeve 504 drives the sliding rod 505 to move, and the movement of the sliding rod 505 drives the arc-shaped water spray pipe 506 to reciprocate, driving the lifting assembly 102 to drive the drilling rig assembly 103 to move upward and reset, so that the scraper 209 first scrapes the impurities on the drill bit, and then the arc-shaped brush 208 cooperates with the arc-shaped water spray pipe 506 to rinse the surface of the drill bit, and the combined partition 302 can prevent water stains from splashing onto the cleaned part of the drill bit, and at the same time can also scrape water from the drill bit, and finally the arc-shaped water-absorbing sponge 307 wipes the water on the surface of the drill bit, so that the annular partition 302 can prevent water stains from splashing onto the cleaned part of the drill bit, thereby improving the cleaning effect of the drill bit.

[0050] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shale gas drilling rig with an automatic cleaning function, comprising a bottom plate (1), characterized in that: A fixed shell (202) is provided above the bottom plate (1), a movable rod (201) is fixedly connected to the fixed shell (202), a movable groove is provided at one end of the movable rod (201), a fixed rod (2) is slidably connected in the movable groove, and further comprises: A support rod (101), wherein the bottom end of the support rod (101) is fixedly connected to the top of the bottom plate (1), and one end of the fixing rod (2) is fixedly connected to one side of the support rod (101); an anti-splashing mechanism, the anti-splashing mechanism being located on the fixed shell (202); a cleaning mechanism, the cleaning mechanism being located on the fixed shell (202); The anti-splash mechanism comprises a fixed block (3) fixedly connected to the inner wall of the fixed shell (202); the top of the fixed block (3) is rotatably connected to two rotating columns (301); a partition plate (302) is fixedly sleeved on the two rotating columns (301); the two partition plates (302) are semicircular; the tops of the two rotating columns (301) are key-connected to a fixed gear (303); a sliding hole is provided on the inner wall of the fixed shell (202); a gear (303) is slidably connected to the sliding hole; A sliding rack (304) is provided, the two fixed gears (303) are meshed with the sliding rack (304), one end of the sliding rack (304) is slidably sleeved with an L-shaped rod (305), the top of the movable rod (201) is fixedly connected to an electric telescopic rod (204), the output end of the electric telescopic rod (204) is fixedly connected to a circular block (206), and the top end of the L-shaped rod (305) is fixedly connected to the cylindrical outer wall of the circular block (206).

2. The shale gas drilling rig with automatic cleaning function according to claim 1, characterized in that: A U-shaped block (207) is slidably sleeved on the outer cylindrical wall of the output end of the electric telescopic rod (204), and both ends of the U-shaped block (207) are fixedly connected to one side of the support rod (101). A telescopic spring (205) is sleeved on the output end of the electric telescopic rod (204), and both ends of the telescopic spring (205) are respectively fixedly connected to the circular block (206) and the U-shaped block (207).

3. The shale gas drilling rig with automatic cleaning function according to claim 2, characterized in that: Two fixing columns (306) are fixedly connected to the tops of the two partitions (302), and an arc-shaped water-absorbing sponge (307) is fixedly connected to the tops of each of the two fixing columns (306), and the two arc-shaped water-absorbing sponges (307) are both semicircular in shape.

4. The shale gas drilling rig with automatic cleaning function according to claim 3, characterized in that: A lifting assembly (102) is installed on the support rod (101), and a drilling rig assembly (103) is installed on the lifting assembly (102).

5. The shale gas drilling rig with automatic cleaning function according to claim 1, characterized in that: The cleaning mechanism comprises a rotating unit, a driving unit and a reciprocating sliding unit, wherein the rotating unit comprises an arc-shaped slider (203) rotatably connected to the bottom of the fixed shell (202), the inner wall of the arc-shaped slider (203) being fixedly connected to an arc-shaped brush (208), the cylindrical outer wall of the fixed shell (202) being fixedly connected to two mounting blocks (406), the tops of the two mounting blocks (406) being provided with rotating holes, the two rotating holes being rotatably connected to rotating shafts (404), the bottom ends of the two rotating shafts (404) being fixedly connected to rotating wheels (405), the two rotating wheels (405) being fitted to the arc-shaped slider (203), and the top ends of the two rotating shafts (404) being key-connected to driven bevel gears (403).

6. The shale gas drilling rig with automatic cleaning function according to claim 5, characterized in that: The driving unit comprises a fixing plate (4) fixedly connected to the cylindrical outer wall of the fixing shell (202), one side of the fixing plate (4) is provided with two movable holes, two rotating rods (401) are rotatably connected in the two movable holes, one end of the two rotating rods (401) is key-connected with a driving bevel gear (402), the two driving bevel gears (402) are respectively meshed with two driven bevel gears (403), a belt transmission assembly (407) is commonly mounted on the two rotating rods (401), one side of the fixing plate (4) is fixedly connected with a driving motor (408), and the output end of the driving motor (408) is fixedly connected to the other end of one of the rotating rods (401).

7. The shale gas drilling rig with automatic cleaning function according to claim 6, characterized in that: The inner wall of the arc-shaped brush (208) is fixedly connected to a scraper (209), and the scraper (209) is spiral-shaped.

8. The shale gas drilling rig with automatic cleaning function according to claim 7, characterized in that: The reciprocating sliding unit comprises a movable block (5) slidably connected to the fixed plate (4); a mounting column (503) is fixedly connected to the top of the movable block (55); a fixed sleeve (504) is fixedly connected to the top of the mounting column (503); a sliding rod (505) is slidably connected inside the fixed sleeve (504); an arc-shaped hole is provided on the cylindrical outer wall of the fixed shell (202); one end of the sliding rod (505) passes through the arc-shaped hole and is rotatably connected to an arc-shaped water spray pipe (506); a water inlet joint (507) is fixedly connected to the top of the arc-shaped water spray pipe (506); an L-shaped connecting rod (501) is fixedly connected to one side of the movable block (5); one end of the L-shaped connecting rod (501) is rotatably connected to a driving rod (502); one end of the driving rod (502) is fixedly connected to the other end of the other rotating rod (401).

9. The shale gas drilling rig with automatic cleaning function according to claim 8, characterized in that: Two arc-shaped seats (508) are slidably sleeved on the arc-shaped water spray pipe (506), and the two arc-shaped seats (508) are fixedly connected to the inner wall of the fixed shell (202).

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