Coal cleaning device for well drilling collapse hole of ground horizontal well

Abstract

The invention provides a ground horizontal well drilling hole collapse coal cleaning device, and relates to the field of horizontal well drilling hole collapse coal cleaning. Comprising a negative pressure suction mechanism; an opening is formed in one side of the slag suction cover, and the middle of the side, away from the opening, of the slag suction cover is fixedly communicated with a connecting pipe; the connecting pipe is connected with the negative pressure suction mechanism; the carrying frame comprises two telescopic pressing assemblies which are symmetrically arranged; the rotary driving mechanism is used for driving the slag suction cover to rotate; the linear driving mechanism is used for driving the slag suction cover to enter each depth position of the collapse hole; and the crushing mechanism is mounted on the side of the opening of the slag suction cover. The slag suction cover is automatically driven to move and adjust the position through the rotary driving mechanism and the linear driving mechanism so as to suck and clean coal at all positions of a collapsed hole, and manual movement is not needed; and meanwhile, the crushing mechanism is arranged to crush and loosen coal cinder at the hole collapse position, so that the coal cinder is conveniently sucked away.

Description

Technical Field

[0001] The invention relates to the field of coal cleaning in collapsed holes of horizontal well drilling, and in particular to a coal cleaning device in collapsed holes of horizontal well drilling on the ground. Background Art

[0002] Coal mine gas is not only the gas source of coal mine gas disasters, but also a highly efficient clean energy source. The extraction and utilization of ground coalbed methane (coal mine gas) has very important economic and social benefits.

[0003] In the past, mature vertical fracturing wells have achieved good extraction results in areas of primary fractured structure coal mines, but the vertical well fracturing effect is limited for broken, soft, and low-permeability coal seams. In recent years, through some surface coalbed methane horizontal well extraction engineering experiments and technical research conducted at home and abroad, it is generally believed that the surface horizontal well extraction method is the development direction for achieving rapid and efficient extraction of gas from broken, soft, and low-permeability coal seams.

[0004] During the drilling process of horizontal wells, collapsed holes may occur in the broken, soft and low-permeability coal seams, resulting in the accumulation of a large amount of coal slag. In the prior art, there is a method of sucking out the coal slag by negative pressure suction, which is lowered to the collapsed hole in the well through a pipeline, and the coal slag is sucked out through the entrance of the pipeline. However, in this coal cleaning method, the pipeline entrance lacks a design of automatic adjustment and movement, and the pipeline entrance cannot be automatically moved to various positions at the collapsed hole. The pipeline entrance needs to be moved manually, which causes the problem of high labor intensity in coal cleaning. Summary of the invention

[0005] The invention provides a ground horizontal well drilling collapse hole coal cleaning device to solve the technical problem that the coal cleaning process requires manual movement of pipelines and adjustment of pipeline inlets, which results in high labor intensity.

[0006] The present invention solves the above technical problems through the following technical solutions:

[0007] The present invention provides a coal cleaning device for a collapsed hole in a horizontal well on the ground, comprising a negative pressure suction mechanism; further comprising: a slag suction hood, one side of which is open, and a connecting pipe is fixedly connected to the middle part of the side of the slag suction hood away from the opening; the connecting pipe is connected to the negative pressure suction mechanism through a pipeline; a carrier, the carrier comprising two symmetrically arranged telescopic clamping assemblies, the two telescopic clamping assemblies clamp the horizontal well wall to be fixed in the horizontal well; a rotary drive mechanism, the rotary drive mechanism is used to drive the slag suction hood to rotate so that the slag suction hood passes through various positions of the cross section of the collapsed hole, and the rotary drive mechanism is installed on the carrier; a linear drive mechanism, the linear drive mechanism is used to drive the slag suction hood to enter various depth positions of the collapsed hole, and the linear drive mechanism is installed on the carrier; a crushing mechanism, the crushing mechanism is installed on the side of the opening of the slag suction hood, the crushing mechanism comprises a plurality of rotatable claws, and the plurality of claws are distributed at equal intervals along the length direction of the slag suction hood.

[0008] In this technical solution, the slag suction hood is automatically driven to move and adjust its position through a rotary drive mechanism and a linear drive mechanism to suck and clean coal at various positions of the collapsed hole without manual movement; at the same time, a crushing mechanism is provided to crush and loosen the coal slag at the collapsed hole to facilitate its removal.

[0009] Preferably, the carrier also includes a frame body; the two telescopic clamping assemblies are respectively located at the two ends of the frame body, and the telescopic clamping assemblies include a movable end seat, a pressure plate, a telescopic rod and a sliding seat; the telescopic rod is installed in the frame body, and a sliding cavity is opened at the end of the frame body, and a sliding seat is slidably installed in the sliding cavity, one side of the sliding seat is fixedly connected to one end of the telescopic rod, and the other side of the sliding seat is fixedly connected to a movable end seat, and one end of the movable end seat extends out of the sliding cavity, and the end of the movable end seat located outside the sliding cavity is fixedly connected to the pressure plate.

[0010] In this technical solution, the carrier is used to be fixed to the well body to ensure the stability of the coal cleaning operation.

[0011] Preferably, the rotary drive mechanism includes a rotating sleeve, a first transmission wheel, a first transmission belt, a second transmission wheel and a first motor; the first motor is fixedly mounted on the frame, a rotating sleeve is rotatably mounted in the middle of the frame, the first transmission wheel is fixedly sleeved on the outer wall of one end of the rotating sleeve, the second transmission wheel is fixedly connected to the output shaft end of the first motor, and a first transmission belt is wound around the first transmission wheel and the second transmission wheel.

[0012] In the technical solution, the rotary drive mechanism is used to drive the slag suction hood to rotate, so that the slag suction hood can suck and clean coal at various positions of the cross section of the collapsed hole.

[0013] Preferably, the connecting pipe includes a bent pipe, a straight pipe and a positioning slide; one end of the straight pipe is fixedly connected to the bent pipe, and the end of the bent pipe away from the straight pipe is connected to the slag suction hood, the positioning slide is fixedly installed on the outer wall of the straight pipe, the straight pipe is connected with the inner wall of the rotating sleeve with a clearance fit, a slideway is provided on the inner wall of the rotating sleeve, and the positioning slideway is slidably connected to the slideway.

[0014] In this technical solution, the bent pipe is used to communicate with the middle of the slag suction hood, and the straight pipe is used to be installed on the carrier to be driven by the rotary drive mechanism, and the positioning slide bar allows the straight pipe to rotate with the rotating sleeve to avoid relative rotation between the two.

[0015] Preferably, the linear drive mechanism includes a rack, a bending portion, an annular sleeve, an annular groove, an embedded ring and a first gear; a through groove is provided on the frame body, and the first gear is rotatably installed in the through groove, the rack extends into the through groove, and the rack is meshingly connected to the first gear, a second motor is fixedly installed in the frame body, and the output shaft end of the second motor is fixedly connected to the first gear, the rack is provided with a sliding groove along the length direction, and the sliding groove is slidably connected to a slider, and the slider is fixedly installed in the through groove, a bending portion is provided at one end of the rack, and the bending portion is fixedly connected to a annular sleeve, a annular groove is provided in the annular sleeve, an embedded ring is matched in the annular groove, and the embedded ring is fixedly sleeved with the outer wall of the straight tube.

[0016] In the technical solution, the linear drive mechanism is used to drive the straight pipe to move along the length direction, slide with the rotating sleeve, and then drive the slag suction hood to move linearly to enter different depth positions of the collapsed hole.

[0017] Preferably, the crushing mechanism comprises two groups of driving parts, the two groups of driving parts are symmetrically arranged on both sides of the slag suction hood, the driving part comprises a plurality of rotating shafts, the rotating shafts are rotatably connected with a fixed frame fixedly installed on the outer wall of the slag suction hood, and every two adjacent rotating shafts are connected by a transmission member, and the transmission member comprises two third transmission wheels and a second transmission belt, the second transmission belt is wound around the two third transmission wheels, and the second transmission wheel is fixedly sleeved on the rotating shaft, a claw body is fixedly installed at one end of the rotating shaft close to the opening of the slag suction hood, and a plurality of claw teeth are installed on the claw body, a rotating shaft end in the driving part is fixedly connected to a second gear, the second gear is meshedly connected to the third gear, a fixed shaft is fixedly connected to the middle part of the third gear, the fixed shaft is fixedly connected to a strip frame, the strip frame is gap-fittedly connected to a guide groove opened on the frame, and the fixed shaft is coaxially arranged with the straight tube.

[0018] In the present technical solution, the crushing mechanism is used to crush the coal slag at the collapsed hole and loosen the coal slag, so as to facilitate the separation and removal of the coal slag.

[0019] Preferably, both surfaces of the third gear are fixedly connected to limiting plates, the two limiting plates and the tooth surface of the third gear form an annular limiting groove, and the second gear is embedded in the limiting groove.

[0020] In the technical solution, the third gear and the second gear are moved linearly together by the limiting plate to ensure that the two are always meshed.

[0021] Preferably, it also includes a lubrication mechanism, which includes two oil supply assemblies, which are respectively installed in the sliding cavities of the two telescopic pressing assemblies, and the two oil supply assemblies are respectively connected to the first oil delivery member and the second oil delivery member, and the oil supply assembly includes a delivery shell, a spring, a piston, a first one-way valve, a push rod, a second one-way valve and an oil storage tank; the delivery shell is fixedly installed in the sliding cavity, and a piston is matched and connected in the delivery shell, and a cavity is formed between one side of the piston and the inner wall of the delivery shell, and a plurality of springs are arranged in the cavity, and the piston is fixedly connected to the push rod, and the push rod extends from the delivery shell, and the push rod faces the sliding seat, and the first one-way valve and the second one-way valve are fixedly installed on the wall of the delivery shell. , the oil storage tank is fixedly installed on the side wall of the frame, and the oil storage tank is connected to the second one-way valve; the first oil delivery member includes a first hard tube and a first telescopic hose, one end of the first hard tube is connected to one end of the first telescopic hose, and the other end of the first telescopic hose is connected to the first one-way valve of an oil supply component; the second oil delivery member includes a second hard tube and a second telescopic hose, one end of the second hard tube is connected to one end of the second telescopic hose, and the other end of the second telescopic hose is connected to the first one-way valve of an oil supply component, the second hard tube is fixedly connected to the bending part of the linear drive mechanism, and the second hard tube is connected to the annular groove; the first hard tube is connected to the lubrication channel arranged in the third gear.

[0022] In the technical solution, the lubrication mechanism is used for automatic lubrication at the connection between the linear drive mechanism and the straight pipe, and between the second gear and the third gear.

[0023] Preferably, the lubrication channel includes an inner cavity opened in the third gear; the inner cavity is connected to the second channel opened in the fixed shaft, the fixed shaft is fixedly connected to the first hard tube, and the second channel is connected to the first hard tube, and the third gear is also provided with a plurality of first channels distributed in a ring array, the first channel is connected to the inner cavity, and the first channel is connected to the tooth groove on the tooth surface of the third gear, a plurality of circular covers are arranged on the limit plate, a retaining ring is fixedly installed in the circular cover, the retaining ring and the circular cover form a circular groove, a ball is connected to the circular groove by clearance fit, the ball is in contact with the second gear, a plurality of third channels are opened in the third gear, and the inner cavity and the circular groove are connected through the third channel.

[0024] In the present technical solution, the lubrication channel is used to transport lubricating oil so as to allow the lubricating oil to enter between the third gear and the second gear.

[0025] Preferably, the negative pressure suction mechanism includes a shell, a feed pipe, a negative pressure interface and a sewage outlet; the feed pipe passes through the top of the shell and extends into the shell, and the top side and the bottom side of the shell are respectively provided with a negative pressure interface and a sewage outlet, the top end of the feed pipe is connected to one end of the pipe, and the end of the pipe away from the feed pipe is provided with a joint, the joint is rotatably sleeved with one end of the straight pipe, a retaining ring is fixedly installed in the joint, a sealing ring is provided on the retaining ring, and the sealing ring abuts against the end face of the straight pipe.

[0026] In the present technical solution, a negative pressure device is connected via a negative pressure interface to form a negative pressure inside the shell for negative pressure suction.

[0027] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0028] The positive and progressive effects of the present invention are:

[0029] The above-mentioned ground horizontal well drilling collapsed hole coal cleaning device is fixed to the well through a carrier, and is used to improve the stability of the coal cleaning operation for the components on the carrier; through the design of the slag suction hood, the rotary drive mechanism and the linear drive mechanism, the linear drive mechanism causes the slag suction hood to move in a straight line, always close to the collapsed hole, and after the surface coal slag at the collapsed hole is sucked away, the linear drive mechanism drives the slag suction hood to move deep into the collapsed hole to achieve coal suction at various depth positions at the collapsed hole, and the rotary drive mechanism drives the slag suction hood to rotate to suck coal at different cross-sectional positions at the collapsed hole. Through the above, automatic coal suction at various positions at the collapsed hole can be achieved without manual movement, which provides convenience for coal suction and cleaning; further, a crushing mechanism is arranged at the opening of the slag suction hood, and during the process of the slag suction hood sucking coal, the crushing mechanism crushes the coal slag at the collapsed hole to loosen it and facilitate its removal by the slag suction hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 It is a schematic diagram of the structure between the carrier and the slag suction hood of the present invention.

[0032] Figure 3 It is a schematic diagram of the connection structure between the linear drive mechanism and the straight tube of the present invention.

[0033] Figure 4 It is a schematic diagram of the rotary drive mechanism and the structure in the through slot of the present invention.

[0034] Figure 5 It is a schematic diagram of the cross-sectional structure of the end portion of the carrier of the present invention.

[0035] Figure 6 For the present invention Figure 5Schematic diagram of the structure with the A part in the middle enlarged.

[0036] Figure 7 It is a structural schematic diagram of the oil supply assembly of the present invention.

[0037] Figure 8 It is a structural schematic diagram of the crushing mechanism of the present invention.

[0038] Fig. 9 It is a schematic diagram of the cross-sectional structure of the fixed shaft, the limiting plate and the third gear of the present invention.

[0039] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure with the B part enlarged.

[0040] Fig.11 It is a schematic diagram of the installation structure of the ball of the present invention.

[0041] Fig.12 It is a schematic diagram of the pipeline and straight pipe connection structure of the present invention.

[0042] Fig.13 It is a structural schematic diagram of the negative pressure suction mechanism of the present invention.

[0043] Description of Reference Numerals

[0044] 1. Negative pressure suction mechanism; 101. Shell; 102. Feed pipe; 103. Negative pressure interface; 104. Drain port;

[0045] 2. Pipe; 201. Joint; 202. Retaining ring; 203. Sealing ring;

[0046] 3. Slag suction hood;

[0047] 4. Carrier; 401. Frame; 4011. Guide groove; 4012. Through groove; 402. Movable end seat; 403. Pressing plate; 404. Telescopic rod; 405. Sliding seat; 406. Sliding cavity;

[0048] 5. Connecting pipe; 501. Bend pipe; 502. Straight pipe; 503. Positioning slide;

[0049] 6. Rotation drive mechanism; 601. Rotating sleeve; 602. First transmission wheel; 603. First transmission belt; 604. Second transmission wheel; 605. First motor;

[0050] 7. Linear drive mechanism; 701. rack; 7011. slideway; 702. bending portion; 703. annular sleeve; 704. annular groove; 705. embedded ring; 706. first gear;

[0051] 8. Strip rack;

[0052] 9. First oil delivery member; 901. First hard pipe; 902. First telescopic hose;

[0053] 10. second oil delivery member; 1001. second telescopic hose; 1002. second hard pipe;

[0054] 11. Crushing mechanism; 1101. Fixed frame; 1102. Rotating shaft; 1103. Claw body; 11031. Claw teeth; 1104. Third transmission wheel; 1105. Second transmission belt; 1106. Second gear; 1107. Fixed shaft; 1108. Limiting plate; 11081. Round groove; 11082. Ball bearing; 11083. Round cover; 11084. Blocking ring; 1109. Third gear; 11091. Inner cavity; 11092. First channel; 11093. Second channel; 11094. Third channel;

[0055] 12. Oil supply assembly; 1201. Delivery shell; 1202. Spring; 1203. Piston; 1204. First one-way valve; 1205. Push rod; 1206. Second one-way valve; 1207. Oil storage tank. DETAILED DESCRIPTION

[0056] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0057] like Figure 1-Figure 13 As shown, the ground horizontal well drilling collapse hole coal cleaning device includes a negative pressure suction mechanism 1; also includes: a slag suction cover 3, one side of the slag suction cover 3 is open, and the middle part of the side of the slag suction cover 3 away from the opening is fixedly connected with a connecting pipe 5; the connecting pipe 5 is connected to the negative pressure suction mechanism 1 through a pipeline 2; a carrier 4, the carrier 4 includes two symmetrically arranged telescopic pressing assemblies, the two telescopic pressing assemblies press the horizontal well wall to be fixed in the horizontal well; a rotary drive mechanism 6, the rotary drive mechanism 6 is used to drive the slag suction cover 3 rotates so that the slag suction hood 3 passes through various positions of the cross section of the collapsed hole, and the rotary drive mechanism 6 is installed on the carrier 4; the linear drive mechanism 7, the linear drive mechanism 7 is used to drive the slag suction hood 3 to enter various depth positions of the collapsed hole, and the linear drive mechanism 7 is installed on the carrier 4; the crushing mechanism 11, the crushing mechanism 11 is installed to the side of the opening of the slag suction hood 3, and the crushing mechanism 11 includes a plurality of rotatable claws 1103, and the plurality of claws 1103 are evenly spaced along the length direction of the slag suction hood 3.

[0058] In specific implementation, the negative pressure suction mechanism 1 is set on the ground, and the carrier 4 is lowered to the collapsed hole position of the horizontal well, and the carrier 4 presses the well wall to fix it; the coal slag is sucked away by the slag suction hood 3.

[0059] like Fig.13As shown, as a specific technical solution, the negative pressure suction mechanism 1 includes a shell 101, a feed pipe 102, a negative pressure interface 103 and a sewage outlet 104; the feed pipe 102 passes through the top of the shell 101, and the feed pipe 102 extends into the shell 101, and the top side and the bottom side of the shell 101 are respectively provided with a negative pressure interface 103 and a sewage outlet 104, the top end of the feed pipe 102 is connected to one end of the pipe 2, and the end of the pipe 2 away from the feed pipe 102 is provided with a joint 201, the joint 201 is rotatably sleeved with one end of the straight pipe 502, and a retaining ring 202 is fixedly installed in the joint 201, and a sealing ring 203 is provided on the retaining ring 202, and the sealing ring 203 abuts against the end face of the straight pipe 502.

[0060] The negative pressure interface 103 is connected to the negative pressure device, and the negative pressure device is used to draw negative pressure into the shell 101 to form a negative pressure environment. The slag suction hood 3 sucks coal, so that the coal slag passes through the slag suction hood 3, the connecting pipe 5, the pipeline 2, and the feed pipe 102 in sequence and enters the shell 101 to achieve coal cleaning.

[0061] The coal slag in the shell 101 can be discharged by opening the sewage outlet 104; in daily use, the sewage outlet 104 is closed by a cover, and the cover is opened when discharging sewage.

[0062] The pipeline 2 is rotatably connected to the straight pipe 502 through the joint 201 to meet the rotation requirements of the straight pipe 502. At the same time, a retaining ring 202 and a sealing ring 203 are provided to ensure the sealing of the connection.

[0063] like Figure 2 and Figure 5 As shown, as a specific technical solution, the carrier 4 also includes a frame body 401; the two telescopic clamping assemblies are respectively located at the two ends of the frame body 401, and the telescopic clamping assemblies include a movable end seat 402, a pressure plate 403, a telescopic rod 404 and a slide 405; the telescopic rod 404 is installed in the frame body 401, and a sliding cavity 406 is opened at the end of the frame body 401, and a slide 405 is slidably installed in the sliding cavity 406, one side of the slide 405 is fixedly connected to one end of the telescopic rod 404, and the other side of the slide 405 is fixedly connected to the movable end seat 402, and one end of the movable end seat 402 extends out of the sliding cavity 406, and the end of the movable end seat 402 located outside the sliding cavity 406 is fixedly connected to the pressure plate 403.

[0064] exist Figure 2 and Figure 5 In the figure, the telescopic clamping assembly is in a retracted state, and the process of fixing it in the horizontal well is as follows: the telescopic rod 404 is extended, driving the slide seat 405 to move in the slide cavity 406, so that the movable end seat 402 moves out of the slide cavity 406, and then the pressure plate 403 presses the well wall to achieve fixation.

[0065] The telescopic rod 404 is preferably a hydraulic cylinder or a pneumatic cylinder.

[0066] In specific implementation, in order to ensure the fixing effect, a fixing nail can be set on the side of the pressure plate 403 away from the movable end seat 402. After the well wall is pressed, the fixing nail is inserted into the well wall to improve the fixing effect.

[0067] like Figure 2 and Figure 4 As shown, the rotary drive mechanism 6 includes a rotating sleeve 601, a first transmission wheel 602, a first transmission belt 603, a second transmission wheel 604 and a first motor 605; the first motor 605 is fixedly mounted on the frame 401, the rotating sleeve 601 is rotatably mounted in the middle of the frame 401, the first transmission wheel 602 is fixedly sleeved on the outer wall of one end of the rotating sleeve 601, the second transmission wheel 604 is fixedly connected to the output shaft end of the first motor 605, and a first transmission belt 603 is wound around the first transmission wheel 602 and the second transmission wheel 604.

[0068] The rotary drive mechanism 6 is used to drive the connecting pipe 5 to rotate so that the slag suction hood 3 rotates; specifically, the first motor 605 drives the second transmission wheel 604 to rotate, and the first transmission belt 603 is transmitted to make the first transmission wheel 602 and the rotating sleeve 601 rotate together, and the rotating sleeve 601 drives the straight pipe 502 of the connecting pipe 5 to rotate together.

[0069] like Figure 2 and Figure 4 As shown, the connecting pipe 5 includes a curved pipe 501, a straight pipe 502 and a positioning slide 503; one end of the straight pipe 502 is fixedly connected to the curved pipe 501, and the end of the curved pipe 501 away from the straight pipe 502 is connected to the slag suction cover 3, the positioning slide 503 is fixedly installed on the outer wall of the straight pipe 502, the straight pipe 502 is connected with the inner wall of the rotating sleeve 601 with a clearance fit, a slideway is provided on the inner wall of the rotating sleeve 601, and the positioning slide 503 is slidably connected to the slideway.

[0070] Through the design of the positioning slide bar 503 and the slideway, the straight tube 502 can rotate with the rotating sleeve 601, avoiding the relative rotation between the two; at the same time, when the straight tube 502 moves along the length direction, it is guided by the positioning slide bar 503 and the slideway.

[0071] like Figure 2-Figure 4As shown, the linear drive mechanism 7 includes a rack 701, a bent portion 702, a circular ring sleeve 703, a circular groove 704, an embedded ring 705 and a first gear 706; a through groove 4012 is opened on the frame 401, and a first gear 706 is rotatably installed in the through groove 4012, the rack 701 extends into the through groove 4012, and the rack 701 is meshed with the first gear 706, and a second motor is fixedly installed in the frame 401, and the output shaft end of the second motor is connected to the first gear 706. The first gear 706 is fixedly connected, and the rack 701 is provided with a slide groove 7011 along the length direction, and the slide groove 7011 is slidably connected with a slider, and the slider is fixedly installed in the through groove 4012. A bending portion 702 is provided at one end of the rack 701, and the bending portion 702 is fixedly connected with a circular ring sleeve 703, and a circular ring groove 704 is provided in the circular ring sleeve 703, and an embedded ring 705 is matched and connected in the circular ring groove 704, and the embedded ring 705 is fixedly sleeved with the outer wall of the straight tube 502.

[0072] The linear drive mechanism 7 is used to drive the straight pipe 502 of the connecting pipe 5 to move along the length direction, thereby driving the slag suction hood 3 to move to different depths of the collapsed hole.

[0073] Specifically, the second motor drives the first gear 706 to rotate, and through the meshing of the first gear 706 and the rack 701, the rack 701 drives the annular sleeve 703 to move through the bending portion 702, and the annular sleeve 703 drives the embedded ring 705, thereby moving the straight tube 502 along the length direction.

[0074] At the same time, the provision of the annular groove 704 and the embedded ring 705 ensures that the straight tube 502 can rotate without causing any obstruction to the rotation of the straight tube 502 .

[0075] The second motor is a motor with a brake, or a motor with a worm gear and a self-locking function.

[0076] like Figure 2 and Figure 8As shown, the crushing mechanism 11 includes two groups of driving parts, which are symmetrically arranged on both sides of the slag suction cover 3. The driving part includes a plurality of rotating shafts 1102, and the rotating shafts 1102 are rotatably connected to a fixing frame 1101 fixedly installed on the outer wall of the slag suction cover 3. Every two adjacent rotating shafts 1102 are connected by a transmission member, and the transmission member includes two third transmission wheels 1104 and a second transmission belt 1105. The second transmission belt 1105 is wound around the two third transmission wheels 1104, and the second transmission wheel 604 is fixedly sleeved on the rotating shaft 1102. A claw body 1103 is fixedly installed at one end of the rotating shaft 1102 close to the opening of the slag suction hood 3, and a plurality of claw teeth 11031 are installed on the claw body 1103. A second gear 1106 is fixedly connected to the end of a rotating shaft 1102 in the driving part, and the second gear 1106 is meshingly connected to the third gear 1109. A fixed shaft 1107 is fixedly connected to the middle of the third gear 1109. The fixed shaft 1107 is fixedly connected to a strip frame 8, and the strip frame 8 is loosely connected to a guide groove 4011 opened on the frame body 401, and the fixed shaft 1107 is coaxially arranged with the straight tube 502.

[0077] The two sides of the third gear 1109 are fixedly connected to the limiting plates 1108 , and the tooth surfaces of the two limiting plates 1108 and the third gear 1109 form an annular limiting groove, and the second gear 1106 is embedded in the limiting groove.

[0078] When the slag suction hood 3 rotates, the second gear 1106 performs a circular motion around the tooth surface of the third gear 1109, that is, the second gear 1106 moves on the tooth surface of the third gear 1109, so that the second gear 1106 drives the rotating shaft 1102 to rotate, and the adjacent rotating shafts 1102 are transmitted through the third transmission wheel 1104 and the second transmission belt 1105, so that all the rotating shafts 1102 rotate, and the rotating shaft 1102 drives the claw body 1103 to rotate, and the claw body 1103 moves with the slag suction hood 3. When the slag suction hood 3 sucks coal, the claw teeth 11031 of the claw body 1103 crush the coal slag to loosen the coal slag, which is convenient for the coal slag to be sucked away.

[0079] The structure on the slag suction hood 3, including the second gear 1106, will move with the slag suction hood 3. The second gear 1106 will move linearly with the slag suction hood 3 (close to the frame 401 or away from the frame 401), and the third gear 1109 will be driven to move together through the limit plate 1108 to keep the third gear 1109 always meshing with the second gear 1106. At the same time, the strip frame 8 and the guide groove 4011 provide positioning guidance to keep the third gear 1109 only able to move linearly close to the frame 401 or away from the frame 401.

[0080] Through the above design, the crushing mechanism 11 is suitable for the linear movement of the slag suction cover 3. At the same time, when the crushing mechanism 11 rotates through the slag suction cover 3, the second gear 1106 moves in a circular motion around the third gear 1109 to provide power without the need for an additional power source.

[0081] like Figure 2-Figure 3 as well as Figure 5-Figure 7 As shown, it also includes a lubrication mechanism, which includes two oil supply assemblies 12, which are respectively installed in the sliding cavities 406 of the two telescopic pressing assemblies, and the two oil supply assemblies 12 are respectively connected to the first oil delivery member 9 and the second oil delivery member 10, and the oil supply assembly 12 includes a delivery shell 1201, a spring 1202, a piston 1203, a first one-way valve 1204, a push rod 1205, a second one-way valve 1206 and an oil storage tank 1207; the delivery shell 1201 is fixedly installed in the sliding cavity 406, a piston 1203 is connected in the conveying shell 1201, a cavity is formed between one side of the piston 1203 and the inner wall of the conveying shell 1201, a plurality of springs 1202 are arranged in the cavity, a push rod 1205 is fixedly connected to the piston 1203, and the push rod 1205 extends from the conveying shell 1201, the push rod 1205 faces the sliding seat 405, and a first one-way valve 1204 and a first one-way valve 1206 are fixedly installed on the wall of the conveying shell 1201. Two one-way valves 1206, the oil storage tank 1207 is fixedly installed on the side wall of the frame 401, and the oil storage tank 1207 is connected to the second one-way valve 1206; the first oil delivery member 9 includes a first hard tube 901 and a first telescopic hose 902, one end of the first hard tube 901 is connected to one end of the first telescopic hose 902, and the other end of the first telescopic hose 902 is connected to a first one-way valve 1204 of an oil supply component 12; the second oil delivery member 10 includes a second hard tube 1002 and a second telescopic hose 1001, one end of the second hard tube 1002 is connected to one end of the second telescopic hose 1001, and the other end of the second telescopic hose 1001 is connected to the first one-way valve 1204 of an oil supply component 12, the second hard tube 1002 is fixedly connected to the bending portion 702 of the linear drive mechanism 7, and the second hard tube 1002 is communicated with the annular groove 704; the first hard tube 901 is communicated with a lubrication channel arranged in the third gear 1109.

[0082] like Figure 9-11As shown, the lubrication channel includes an inner cavity 11091 opened in the third gear 1109; the inner cavity 11091 is communicated with a second channel 11093 opened in the fixed shaft 1107, the fixed shaft 1107 is fixedly connected to the first hard tube 901, and the second channel 11093 is communicated with the first hard tube 901, and the third gear 1109 is further provided with a plurality of first channels 11092 distributed in a ring array, the first channels 11092 are communicated with the inner cavity 11091, and the first channels 11092 are communicated with the third gear 1109 The tooth grooves on the tooth surface are connected, and a plurality of circular covers 11083 are arranged on the limit plate 1108. A retaining ring 11084 is fixedly installed in the circular cover 11083. The retaining ring 11084 and the circular cover 11083 form a circular groove 11081. The circular groove 11081 is connected with a ball 11082 with clearance fitting. The ball 11082 is in contact with the second gear 1106. A plurality of third channels 11094 are opened in the third gear 1109. The inner cavity 11091 is connected with the circular groove 11081 through the third channel 11094.

[0083] By providing a lubrication mechanism, automatic lubrication can be provided for the second gear 1106 and the third gear 1109 , as well as the embedded ring 705 and the annular sleeve 703 .

[0084] Specifically, when the carrier 4 is fixed to the horizontal well, the slide 405 slides in the slide cavity 406, and the slide 405 approaches the push rod 1205, pushes the push rod 1205, and moves the piston 1203, thereby reducing the volume of the cavity, and the lubricating oil therein can enter the first oil delivery member 9 and the second oil delivery member 10 through the first one-way valve 1204;

[0085] The lubricant is transported through the first hard tube 901 and the first telescopic hose 902, enters the second channel 11093 of the lubrication channel, and then is transported through the inner cavity 11091, the first channel 11092, and the second channel 11093, enters the tooth groove of the third gear 1109, and the circular groove 11081. When the second gear 1106 is meshed with the third gear 1109, the lubricant in the tooth groove provides lubrication for the second gear 1106 and the third gear 1109, and the lubricant in the circular groove 11081 performs rolling friction with the ball 11082 when the second gear 1106 rotates, for lubrication;

[0086] The lubricating oil is transported through the second hard tube 1002 and the second telescopic hose 1001 and enters the annular groove 704 to provide lubrication between the embedded ring 705 and the annular groove 704 .

[0087] When the slide seat 405 moves away from the push rod 1205, the pressure of the push rod 1205 is cancelled, the piston 1203 is reset by the compression force of the spring 1202, the volume of the cavity increases, and the oil storage tank 1207 is sucked into the cavity through the second one-way valve 1206 for the next lubrication.

[0088] Through the above design, automatic lubrication is achieved without manual operation.

[0089] The first telescopic hose 902 and the second telescopic hose 1001 are both spiral-shaped and made of rubber or silicone to achieve telescopic properties.

[0090] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A coal cleaning device for a ground horizontal well drilling collapse hole, comprising a negative pressure suction mechanism (1); characterized in that: Also includes: A slag suction hood (3), wherein one side of the slag suction hood (3) is open, and a connecting pipe (5) is fixedly connected to the middle of the side of the slag suction hood (3) away from the opening; the connecting pipe (5) is connected to the negative pressure suction mechanism (1) through a pipeline (2); A carrier (4), the carrier (4) comprising two symmetrically arranged telescopic pressing assemblies, the two telescopic pressing assemblies pressing the horizontal well wall to be fixed in the horizontal well; A rotary drive mechanism (6), the rotary drive mechanism (6) being used to drive the slag suction cover (3) to rotate so that the slag suction cover (3) passes through various positions of the cross section of the collapsed hole, the rotary drive mechanism (6) being mounted on the carrier (4); A linear drive mechanism (7), the linear drive mechanism (7) being used to drive the slag suction cover (3) to enter various depth positions at the collapsed hole, and the linear drive mechanism (7) being mounted on the carrier (4); A crushing mechanism (11), the crushing mechanism (11) being mounted on the side of the opening of the slag suction hood (3), the crushing mechanism (11) comprising a plurality of rotatable claw bodies (1103), the plurality of claw bodies (1103) being distributed at equal intervals along the length direction of the slag suction hood (3).

2. The ground horizontal well drilling hole collapse coal cleaning device according to claim 1, characterized in that: The carrier (4) also includes a frame body (401); the two telescopic pressing assemblies are respectively located at the two ends of the frame body (401), and the telescopic pressing assemblies include a movable end seat (402), a pressure plate (403), a telescopic rod (404) and a slide seat (405); the telescopic rod (404) is installed in the frame body (401), and a sliding cavity (406) is opened at the end of the frame body (401), and a slide seat (405) is slidably installed in the sliding cavity (406), one side of the slide seat (405) is fixedly connected to one end of the telescopic rod (404), and the other side of the slide seat (405) is fixedly connected to the movable end seat (402), and one end of the movable end seat (402) extends out of the sliding cavity (406), and the end of the movable end seat (402) located outside the sliding cavity (406) is fixedly connected to the pressure plate (403).

3. The ground horizontal well drilling hole collapse coal cleaning device according to claim 1, characterized in that: The rotary drive mechanism (6) comprises a rotating sleeve (601), a first transmission wheel (602), a first transmission belt (603), a second transmission wheel (604) and a first motor (605); the first motor (605) is fixedly mounted on a frame (401); a rotating sleeve (601) is rotatably mounted in the middle of the frame (401); the first transmission wheel (602) is fixedly sleeved on an outer wall at one end of the rotating sleeve (601); the second transmission wheel (604) is fixedly connected to an output shaft end of the first motor (605); and a first transmission belt (603) is wound between the first transmission wheel (602) and the second transmission wheel (604).

4. The ground horizontal well drilling hole collapse coal cleaning device according to claim 1, characterized in that: The connecting pipe (5) comprises a curved pipe (501), a straight pipe (502) and a positioning slide bar (503); one end of the straight pipe (502) is fixedly connected to the curved pipe (501), and one end of the curved pipe (501) away from the straight pipe (502) is connected to the slag suction cover (3); the positioning slide bar (503) is fixedly mounted on the outer wall of the straight pipe (502); the straight pipe (502) is connected to the inner wall of the rotating sleeve (601) with a clearance fit; a slideway is provided on the inner wall of the rotating sleeve (601); and the positioning slide bar (503) is slidably connected to the slideway.

5. The ground horizontal well drilling hole collapse coal cleaning device according to claim 2, characterized in that: The linear drive mechanism (7) comprises a rack (701), a bent portion (702), an annular sleeve (703), an annular groove (704), an embedded ring (705) and a first gear (706); a through groove (4012) is provided on the frame (401), a first gear (706) is rotatably mounted in the through groove (4012), the rack (701) extends into the through groove (4012), and the rack (701) is meshedly connected to the first gear (706), a second motor is fixedly mounted in the frame (401), and an output shaft end of the second motor is connected to the first gear (706). The first gear (706) is fixedly connected, the rack (701) is provided with a slide groove (7011) along the length direction, the slide groove (7011) is slidably connected with a slider, and the slider is fixedly installed in the through groove (4012), a bending portion (702) is provided at one end of the rack (701), and the bending portion (702) is fixedly connected with a circular ring sleeve (703), a circular ring groove (704) is provided in the circular ring sleeve (703), and an embedded ring (705) is matched and connected in the circular ring groove (704), and the embedded ring (705) is fixedly sleeved with the outer wall of the straight tube (502).

6. The ground horizontal well drilling hole collapse coal cleaning device according to claim 1, characterized in that: The crushing mechanism (11) comprises two groups of driving parts, the two groups of driving parts are symmetrically arranged on both sides of the slag suction cover (3), the driving parts comprise a plurality of rotating shafts (1102), the rotating shafts (1102) are rotatably connected to a fixing frame (1101) fixedly mounted on the outer wall of the slag suction cover (3), and each pair of adjacent rotating shafts (1102) are connected via a transmission member, the transmission member comprises two third transmission wheels (1104) and a second transmission belt (1105), the second transmission belt (1105) is wound around the two third transmission wheels (1104), and the second transmission wheel (604) is fixedly sleeved on the rotating shaft (1102), the rotating shaft (110 2) A claw body (1103) is fixedly installed at one end close to the opening of the slag suction cover (3), and a plurality of claw teeth (11031) are installed on the claw body (1103). A second gear (1106) is fixedly connected to the end of a rotating shaft (1102) in the driving part, and the second gear (1106) is meshingly connected to a third gear (1109). A fixed shaft (1107) is fixedly connected to the middle of the third gear (1109), and a strip frame (8) is fixedly connected to the fixed shaft (1107). The strip frame (8) is loosely connected to a guide groove (4011) provided on the frame body (401), and the fixed shaft (1107) is coaxially arranged with the straight tube (502).

7. The coal cleaning device for drilling a collapsed hole in a ground horizontal well according to claim 6, characterized in that: Both sides of the third gear (1109) are fixedly connected to limiting plates (1108), and the tooth surfaces of the two limiting plates (1108) and the third gear (1109) form a circular limiting groove, and the second gear (1106) is embedded in the limiting groove.

8. The ground horizontal well drilling hole collapse coal cleaning device according to claim 7, characterized in that: The invention also comprises a lubrication mechanism, the lubrication mechanism comprising two oil supply assemblies (12), the two oil supply assemblies (12) being respectively installed in the sliding cavities (406) of the two telescopic pressing assemblies, and the two oil supply assemblies (12) being respectively connected to a first oil delivery member (9) and a second oil delivery member (10), the oil supply assembly (12) comprising a delivery shell (1201), a spring (1202), a piston (1203), a first one-way valve (1204), a push rod (1205), a second one-way valve (1206) and an oil storage tank (1207); the delivery shell (1201) is fixedly installed in the sliding cavity (406), and the delivery shell (1201) is matched with a piston (1203); A cavity is formed between one side of the piston (1203) and the inner wall of the conveying shell (1201), and a plurality of springs (1202) are arranged in the cavity. The piston (1203) is fixedly connected to a push rod (1205), and the push rod (1205) extends out from the conveying shell (1201), and the push rod (1205) faces the slide seat (405). A first one-way valve (1204) and a second one-way valve (1206) are fixedly installed on the wall of the conveying shell (1201). The oil storage tank (1207) is fixedly installed on the side wall of the frame (401), and the oil storage tank (1207) is connected to the second one-way valve (1206). The first oil conveying member (9) comprises a first hard tube (901) and a first telescopic hose (902), and one end of the first hard tube (901) is connected to the first telescopic hose (902). The first telescopic hose (902) is connected to one end of the first telescopic hose (902), and the other end of the first telescopic hose (902) is connected to a first one-way valve (1204) of an oil supply assembly (12); the second oil delivery member (10) comprises a second hard tube (1002) and a second telescopic hose (1001), one end of the second hard tube (1002) is connected to one end of the second telescopic hose (1001), and the other end of the second telescopic hose (1001) is connected to the first one-way valve (1204) of an oil supply assembly (12); the second hard tube (1002) is fixedly connected to a bent portion (702) of the linear drive mechanism (7), and the second hard tube (1002) is in communication with a circular annular groove (704); the first hard tube (901) is in communication with a lubrication channel provided in a third gear (1109).

9. The ground horizontal well drilling hole collapse coal cleaning device according to claim 8, characterized in that: The lubrication channel comprises an inner cavity (11091) opened in the third gear (1109); the inner cavity (11091) is communicated with a second channel (11093) opened in the fixed shaft (1107); the fixed shaft (1107) is fixedly connected to the first hard tube (901), and the second channel (11093) is communicated with the first hard tube (901); the third gear (1109) is further provided with a plurality of first channels (11092) distributed in a ring array; the first channels (11092) are communicated with the inner cavity (11091), and the first channels (11092) are connected to the tooth surface of the third gear (1109). The tooth grooves on the third gear (1106) are connected, a plurality of circular covers (11083) are arranged on the limit plate (1108), a retaining ring (11084) is fixedly installed in the circular cover (11083), the retaining ring (11084) and the circular cover (11083) form a circular groove (11081), a ball (11082) is connected to the circular groove (11081) with clearance fit, the ball (11082) is in contact with the second gear (1106), a plurality of third channels (11094) are opened in the third gear (1109), and the inner cavity (11091) is connected to the circular groove (11081) through the third channels (11094).

10. The ground horizontal well drilling hole collapse coal cleaning device according to claim 1, characterized in that: The negative pressure suction mechanism (1) comprises a shell (101), a feed pipe (102), a negative pressure interface (103) and a sewage outlet (104); the feed pipe (102) passes through the top of the shell (101) and extends into the shell (101); the negative pressure interface (103) and the sewage outlet (104) are respectively provided on one side of the top and one side of the bottom of the shell (101); the top of the feed pipe (102) is connected to one end of a pipe (2); a joint (201) is provided at one end of the pipe (2) away from the feed pipe (102); the joint (201) is rotatably sleeved with one end of a straight pipe (502); a retaining ring (202) is fixedly installed in the joint (201); a sealing ring (203) is provided on the retaining ring (202); and the sealing ring (203) abuts against the end surface of the straight pipe (502).

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