Cleaning device for cylinder sleeve of drilling pump

Abstract

The invention provides a cleaning device for a cylinder sleeve of a drilling pump, and relates to the technical field of cylinder sleeve cleaning. The upper surface of the rotating frame is fixedly connected with a fastening mechanism used for fixing the cylinder sleeve, and the cylinder sleeve is erected on the fastening mechanism. The rotating frame is connected with a supporting rod, the side wall of the supporting rod is rotationally connected with a scraping plate used for cleaning the inner side face of the cylinder sleeve, the scraping plate is obliquely arranged, a limiting face is arranged at the bottom of the support and fluctuates in a wave shape in the circumferential direction, and the outer side face of the supporting rod is sleeved with a compression spring used for pushing the supporting rod to move downwards to abut against the limiting face. The rotating frame is provided with a planetary gear mechanism which is used for driving the supporting rod and the rotating frame to rotate. The device has the effect of improving the dirt removal efficiency of the cylinder sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of cylinder liner cleaning, and in particular to a cylinder liner cleaning device for a drilling pump. Background Art

[0002] The drilling pump cylinder liner is an important and easily worn part of the hydraulic end of the mud pump. Its working surface is in contact with high-temperature and high-pressure gas, and the piston ring reciprocates at high speed on its surface. Therefore, it needs to have sufficient strength and rigidity, as well as high temperature resistance, corrosion resistance, and wear resistance. When the drilling pump is not used or stops running for more than 10 days, it is necessary to remove the hydraulic end parts such as the cylinder liner, piston, etc., clean the sludge and grease inside, and apply grease for protection.

[0003] For example, in the patent document with the authorization announcement number CN219632122U and the name of the patent document is a cleaning device for a drilling pump cylinder liner. When the device is in operation, two arc-shaped clamping plates move toward each other to clamp the cylinder liner body, and the movable plate is positioned by bolts. The output shaft of the motor drives the rotating plate to rotate, and the rotating plate drives the rotating rod to perform circular motion. Due to the meshing of the gear and the gear ring, the rotating plate can rotate in a circle while also rotating on its own, and the cleaning brush rotates at high speed. Since the outer side of the cleaning brush fits tightly against the inner wall of the cylinder liner body, the cylinder liner body is cleaned.

[0004] Regarding the above-mentioned related technologies, since the sludge and grease inside the cylinder liner are sticky and adhesive, the fine bristles of the cleaning brush carry less sludge and grease when scraping the sludge and grease, and there are gaps between the bristles, so some sludge and grease still remain on the surface of the cylinder liner after using the brush. In addition, the cleaning brush rotates along the circumference of the cylinder liner while rotating, and the sludge and grease rotate along the circumference of the cylinder liner synchronously with the cleaning brush. At this time, the sludge and grease are difficult to move out of the cylinder liner along the axial direction of the cylinder liner, thereby having a negative impact on the cleaning effect of the cylinder liner. Summary of the invention

[0005] In view of this, the present invention provides a cleaning device for the cylinder sleeve of a drilling pump, aiming to solve the problem that a rotating cleaning brush is difficult to effectively remove sludge and grease, and that sludge and grease are difficult to move out of the cylinder sleeve along the axial direction of the cylinder sleeve.

[0006] In order to solve the above technical problems, the present invention provides a cleaning device for the cylinder sleeve of a drilling pump, comprising a bracket and a rotating frame; the upper surface of the rotating frame is fixedly connected with a fastening mechanism for fixing the cylinder sleeve, and the cylinder sleeve is upright on the fastening mechanism; the rotating frame is connected with a support rod, and the side wall of the support rod is rotatably connected with a scraper for cleaning the inner side of the cylinder sleeve, and the scraper is inclined. A limited surface is provided at the bottom of the bracket, and the limited surface is wavy along the circumferential direction. The outer side surface of the support rod is provided with a compression spring for pushing the support rod to move downward and abut against the limited surface. The rotating frame is provided with a planetary gear mechanism, and the planetary gear mechanism is used to drive the support rod and the rotating frame to rotate.

[0007] By adopting the above technical solution, there is line contact between the scraper and the inner side of the cylinder liner, which increases the amount of dirt scraped off. The inclined scraper pushes the sticky dirt downward while rotating around the support rod. At the same time, the dirt's own gravity flows downward, so that the dirt is output from the bottom of the cylinder liner, thereby improving the efficiency of removing dirt from the inner side of the cylinder liner.

[0008] Optionally, a transmission gear is fixedly sleeved on the outer side of the scraper, the transmission gear is meshed with a transmission rack, the transmission rack is fixedly connected with a connecting ring, the connecting ring is slidably connected to the support rod through a key groove, the connecting ring is connected with a tension spring, the rotating frame is connected with a sliding rod, the sliding rod is slidably connected with a guide block that can abut against the bottom surface of the connecting ring, the upper end of the rotating frame is provided with a guide surface 1 that can push the guide block to move horizontally, the sliding rod is connected with a reset spring 1, and the guide block is connected with a reset spring 2.

[0009] By adopting the above technical solution, the scraper moves downward in an inclined state in the vertical direction while rotating with the support rod, starts to rotate to a vertical state at the lowest point, moves upward in a vertical state, and starts to rotate to an inclined state at the highest point. As a result, the scraper moves downward in an inclined state to scrape off the dirt on the inner side of the cylinder sleeve, and moves upward in a vertical state to prevent the scraper from driving the fallen dirt to move upward again, so that when the scraper moves back and forth in the vertical direction, the dirt can always move downward and be output from the bottom of the cylinder sleeve, thereby improving the cleaning efficiency of the dirt on the inner side of the cylinder sleeve.

[0010] Optionally, the fastening mechanism includes a supporting platform fixedly connected to the upper surface of the rotating frame, the supporting platform is used to place the cylinder liner, the supporting platform is hinged with multiple fastening blocks along the circumferential direction, the fastening blocks abut against the outer side surface of the cylinder liner, and an extrusion torsion spring is connected between the supporting platform and the fastening blocks.

[0011] By adopting the above technical solution, the compression spring pushes the fastening block to be pressed against the outer side surface of the cylinder sleeve, thereby pressing and fixing the cylinder sleeve.

[0012] Optionally, the bracket is fixedly connected to a gear ring, and the planetary gear mechanism includes a sun gear and a rotation source for driving the sun gear to rotate, the rotation source is fixedly connected to the bracket, the top wall of the rotating frame is rotatably connected to a connecting gear, the connecting gear is located between the sun gear and the gear ring, and both the sun gear and the gear ring are meshed with the connecting gear, and the support rod is fixedly connected to the connecting gear.

[0013] Optionally, a guide surface three is provided on the side of the fastening block close to the support rod.

[0014] By adopting the above technical solution, when placing the cylinder liner, the cylinder liner moves downward to push the guide surface three, so that the fastening block rotates away from the central axis of the support rod, thereby preventing the cylinder liner from interfering with the fastening block during installation, and avoiding the tedious operation of the operator manually rotating the fastening block away from the support rod and then installing the cylinder liner on the supporting platform.

[0015] Optionally, a liquid outlet groove is provided inside the support rod, and the liquid outlet groove is used to transport cleaning liquid to the inner side surface of the cylinder sleeve.

[0016] Optionally, the rotating frame is provided with a transmission groove that can be connected to the inside of the liquid outlet groove, the bracket is rotatably connected to a support pipe that is connected to the inside of the transmission groove, the support pipe is connected to an external water source, and a sealing ring is provided between the support rod and the inner side of the transmission groove.

[0017] By adopting the above technical solution, the external cleaning liquid is transported to the liquid outlet tank through the support pipe and the transmission tank in sequence by a liquid pump. The liquid outlet tank rotates synchronously with the support rod to transport the cleaning liquid to the inner side of the cylinder liner. The cleaning liquid cooperates with the bristles and the scraper to clean the dirt on the inner side of the cylinder liner.

[0018] Optionally, the upper surface of the rotating frame is rotatably connected to a connecting frame, the connecting frame can rotate under the drive of the planetary gear mechanism, and the outer side surface of the connecting frame is fixedly connected to bristles 2 that can abut against the outer side surface of the cylinder sleeve.

[0019] Optionally, a liquid infusion groove for conveying cleaning liquid to the outer side surface of the cylinder sleeve is provided inside the connecting frame, and the liquid infusion groove is communicated with the inside of the supporting tube.

[0020] Optionally, a protective cover is fixedly connected to the upper surface of the bracket, the support rod and the connecting frame are located in the protective cover, and a protective plate is fixedly connected to the upper surface of the rotating frame, and the protective plate is located above the planetary gear mechanism.

[0021] By adopting the above technical solution, the protective cover is used to prevent the cleaning liquid and the scraped dirt from splashing with the rotation of the rotating frame, and the protective plate prevents the scraped dirt from flowing into the planetary gear mechanism to cause the planetary gear mechanism to malfunction.

[0022] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects: 1. There is line contact between the scraper and the inner side of the cylinder liner, which increases the amount of dirt scraped off. The inclined scraper pushes the sticky dirt downward while rotating around the support rod. At the same time, the dirt flows downward due to its own gravity, so that the dirt is discharged from the bottom of the cylinder liner, which improves the efficiency of removing dirt from the inner side of the cylinder liner.

[0023] 2. While the scraper rotates with the support rod, in the vertical direction, the scraper moves downward in an inclined state, starts to rotate to a vertical state at the lowest point, moves upward in a vertical state, and starts to rotate to an inclined state at the highest point. As a result, the scraper moves downward in an inclined state to scrape off the dirt on the inner side of the cylinder sleeve, and the scraper moves upward in a vertical state to prevent the scraper from driving the fallen dirt to move upward again, so that when the scraper moves back and forth in the vertical direction, the dirt can always move downward and be output from the bottom of the cylinder sleeve, thereby improving the cleaning efficiency of the dirt on the inner side of the cylinder sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of the internal structure of a bracket according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a scraper and bristles 1 according to an embodiment of the present invention; Figure 4 A cross-sectional view of the internal structure of a scraper according to an embodiment of the present invention; Figure 5 For the embodiment of the present invention Figure 4 A partial enlarged view of the middle area A; Figure 6 A cross-sectional view of the internal structure of the carrier platform according to an embodiment of the present invention; Figure 7 For the embodiment of the present invention Figure 1 A schematic diagram of the structure from another perspective; Figure 8 is a cross-sectional view of a bracket and a rotating frame according to an embodiment of the present invention; Fig. 9 For the embodiment of the present invention Figure 8 A partial enlarged view of the middle area B; Fig.10 It is a schematic structural diagram of a protective cover according to an embodiment of the present invention.

[0025] Description of reference numerals: 1, bracket; 11, limit surface; 12, gear ring; 2, rotating frame; 21, slide bar; 211, reset spring 1; 22, guide block; 221, reset spring 2; 222, guide surface 2; 23, guide surface 1; 24, transmission groove; 25, support tube; 26, sealing ring; 27, protective plate; 3, fastening mechanism; 31, bearing platform; 32, fastening block; 321, guide surface 3; 33, extrusion torsion spring; 4, support rod; 41, scraper Plate; 42, compression spring; 43, transmission gear; 44, transmission rack; 45, connecting ring; 46, tension spring; 47, bristle one; 48, liquid outlet trough; 49, keyway; 491, limit part; 5, planetary gear mechanism; 51, sun gear; 52, rotation source; 53, connecting gear; 54, driving gear; 55, connecting column; 56, driven gear; 6, connecting frame; 61, bristle two; 62, infusion trough; 7, protective cover; 8, cylinder sleeve; 9, support ball. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 10 , the technical solution of the embodiment of the present invention is clearly and completely described.

[0027] This embodiment provides a cleaning device for a cylinder sleeve of a drilling pump, referring to Figure 1 , Figure 2 and Figure 3 A cleaning device for the cylinder sleeve of a drilling pump comprises a bracket 1, a rotating frame 2, a fastening mechanism 3 for fixing the cylinder sleeve 8, a support rod 4, a scraper 41 for cleaning the cylinder sleeve 8, and a planetary gear mechanism 5. The bracket 1 is erected on a horizontal plane, and the rotating frame 2 is rotatably connected to the bracket 1. The fastening mechanism 3 is fixedly connected to the upper surface of the rotating frame 2 and is arranged in a circular array around the central axis of the bracket 1. The cylinder sleeve 8 is vertically placed on the fastening mechanism 3, and the fastening mechanism 3 is used to support and fix the cylinder sleeve 8. A plurality of support rods 4 are arranged along the circumferential array of the rotating frame 2, and the support rods 4 are rotatably connected to the rotating frame 2, and the support rods 4 can slide vertically relative to the rotating frame 2. A plurality of scrapers 41 are arranged and are all rotatably connected to the side walls of the support rod 4. The scrapers 41 are arranged obliquely to scrape off dirt on the inner side of the cylinder sleeve 8.

[0028] Reference Figure 1 and Figure 2A limiting surface 11 is provided at the bottom of the bracket 1. The limiting surface 11 is circular around the central axis of the bracket 1, and the limiting surface 11 is wavy along the circumferential direction. A compression spring 42 is sleeved on the outer side surface of the support rod 4. The compression spring 42 is located between the lower bottom surface of the rotating frame 2 and the limiting surface 11. The compression spring 42 is used to push the support rod 4 downward to abut against the limiting surface 11. The bottom of the support rod 4 can be rotatably connected to the support ball 9 to reduce the sliding friction generated by the relative movement of the support rod 4 and the limiting surface 11. The rotating frame 2 is provided with a planetary gear mechanism 5. The planetary gear mechanism 5 is used to drive the support rod 4 to rotate while revolving around the central axis of the bracket 1, and the planetary gear mechanism 5 can drive the rotating frame 2 to rotate.

[0029] Because the fastening mechanism 3 is fixedly arranged on the rotating frame 2, and the cylinder sleeve 8 is sleeved on the outside of the support rod 4, the support rod 4 can rotate relative to the cylinder sleeve 8. Since the rotating frame 2 rotates and the support rod 4 revolves around the central axis of the bracket 1, the support rod 4 rotates along the circumferential direction of the limiting surface 11, the wavy limiting surface 11 pushes the support rod 4 to move upward, and the compression spring 42 pushes the support rod 4 to move downward, so that the support rod 4 reciprocates in the vertical direction while revolving around the central axis of the bracket 1, and the scraper 41 reciprocates in the vertical direction while rotating with the support rod 4 relative to the cylinder sleeve 8, thereby scraping off the dirt on the inner side of the cylinder sleeve 8.

[0030] The scraper 41 is in line contact with the inner side of the cylinder liner 8. The scraper 41 forms a cleaning surface when rotating relative to the cylinder liner 8. The scraper 41 increases the amount of dirt scraped relative to the brush. Since the scraper 41 is tilted, the scraper 41 pushes the sticky dirt downward while rotating around the support rod 4. At the same time, the dirt is discharged from the opening below the cylinder liner 8 by utilizing the characteristic of the dirt flowing downward due to its own gravity, thereby improving the efficiency of removing dirt from the inner side of the cylinder liner 8.

[0031] Reference Figure 3 , Figure 4 and Figure 5, a transmission gear 43 is fixedly sleeved on the outer side of each scraper 41, and a transmission rack 44 is meshed with the transmission gear 43. A plurality of transmission racks 44 are fixedly connected to a connecting ring 45. A key slot 49 is vertically provided on the support rod 4. The connecting ring 45 is slidably connected to the support rod 4 through the key slot 49, so that the transmission rack 44 is vertically slidably connected to the support rod 4. A tension spring 46 is connected between the connecting ring 45 and the rotating frame 2, and the tension spring 46 is always in an elongated state. The rotating frame 2 is vertically slidably connected to the slide bar 21, and a return spring 211 is connected between the slide bar 21 and the rotating frame 2. A guide block 22 is horizontally connected to the upper end of the slide bar 21, and the guide block 22 can abut against the bottom wall of the connecting ring 45 when it moves horizontally. The guide block 22 is provided with a guide surface 222, and a return spring 221 is connected between the guide block 22 and the slide bar 21. The upper end of the rotating frame 2 is provided with a guide surface 1 23 that can abut against the guide surface 222 , and the distance between the guide surface 1 23 and the support rod 4 is greater than the distance between the guide surface 222 and the support rod 4 .

[0032] When the guide block 22 is in a free state, the guide block 22 abuts against the lower bottom surface of the connecting ring 45. At this time, the support rod 4 moves vertically downward under the action of the compression spring 42, and the inclined scraper 41 moves with the support rod 4 to scrape the dirt downward. The support rod 4 pushes the guide block 22 to move downward through the connecting ring 45, and the slide bar 21 moves downward synchronously with the guide block 22, so that the return spring 1 211 is compressed. The guide block 22 moves downward so that the guide surface 222 abuts against the guide surface 1 23. When the guide block 22 continues to move downward, the guide surface 1 23 pushes the guide surface 222 away from the support rod 4, so that the return spring 221 is compressed, and the guide block 22 moves synchronously with the guide surface 222 to disengage from the connecting ring 45. At this time, the tension spring 46 drives the connecting ring 45 to move downward until the connecting ring 45 abuts against the bottom surface of the key slot 49, and at this time, there is a gap between the connecting ring 45 and the inner top surface of the key slot 49. The connecting ring 45 moves through the transmission rack 44 to drive the transmission gear 43 to rotate, and the scraper 41 rotates to a vertical state along with the transmission gear 43. At this time, the side wall of the connecting ring 45 abuts against the side wall of the guide block 22.

[0033] The support rod 4 continues to revolve, and the limit surface 11 pushes the support rod 4 to move upward. The support rod 4 drives the connecting ring 45 to move upward through the bottom surface of the key slot 49. At the same time, the return spring 1 211 pushes the slide bar 21 to move upward, and the return spring 221 pushes the guide block 22 to squeeze the outer side of the connecting ring 45, so that the guide block 22 and the connecting ring 45 move upward synchronously. At this time, the scraper 41 is in a vertical state and moves upward. When the slide bar 21 moves to the highest point, the support rod 4 continues to drive the connecting ring 45 to move upward, and the guide block 22 is separated from the connecting ring 45. The return spring 221 pushes the guide block 22 to move horizontally close to the support rod 4. When the support rod 4 moves downward again, the connecting ring 45 moves downward to abut the upper surface of the guide block 22. At this time, the support rod 4 can move downward relative to the connecting ring 45 until the inner top surface of the key slot 49 abuts against the upper surface of the connecting ring 45. During this period, the transmission rack 44 moves relative to the transmission gear 43, and the transmission rack 44 drives the scraper 41 to rotate to a tilted state through the transmission gear 43. The support rod 4 continues to move downward, and the scraper 41 follows the support rod 4 to scrape the dirt on the inner side of the cylinder sleeve 8 downward in an inclined state.

[0034] In summary, while the scraper 41 rotates with the support rod 4, in the vertical direction, the scraper 41 moves downward in an inclined state, starts to rotate to a vertical state at the lowest point, moves upward in a vertical state, and starts to rotate to an inclined state at the highest point. The scraper 41 moves downward in an inclined state to scrape off the dirt on the inner side of the cylinder sleeve 8, and the scraper 41 moves upward in a vertical state to prevent the scraper 41 from driving the fallen dirt to move upward again, so that when the scraper 41 reciprocates in the vertical direction, the dirt can always move downward and be output from the bottom of the cylinder sleeve 8, thereby improving the cleaning efficiency of the dirt on the inner side of the cylinder sleeve 8.

[0035] Reference Figure 5 The outer side surface of the support rod 4 is fixedly connected with a limiting portion 491, which is located above the connecting ring 45 and can abut against the upper surface of the slide bar 21. When the support rod 4 moves upward, the limiting portion 491 abuts against the upper surface of the slide bar 21, thereby limiting the phenomenon that the return spring 1 211 pushes the slide bar 21, and the guide block 22 moves synchronously with the slide bar 21 to the upper side of the connecting ring 45. This is conducive to realizing the above-mentioned function that after the guide block 22 and the connecting ring 45 move upward synchronously, the connecting ring 45 continues to move upward to disengage from the guide block 22, and the return spring 221 pushes the guide block 22 to move the guide block 22 to the lower side of the connecting ring 45.

[0036] Reference Figure 1 , Figure 2 and Figure 6The fastening mechanism 3 includes a bearing platform 31, a fastening block 32 and an extrusion torsion spring 33. The bearing platform 31 is fixedly connected to the upper surface of the rotating frame 2, and the cylinder sleeve 8 is vertically placed on the upper surface of the bearing platform 31. A plurality of fastening blocks 32 are arranged along the circumference of the bearing platform 31, and the fastening blocks 32 are hinged to the bearing platform 31. The side of the fastening block 32 close to the support rod 4 is arc-shaped, and the fastening block 32 abuts against the outer side of the cylinder sleeve 8. The extrusion torsion spring 33 is fixedly connected between the bearing platform 31 and the fastening block 32, and the extrusion torsion spring 33 pushes the fastening block 32 to press against the outer side of the cylinder sleeve 8, thereby pressing and fixing the cylinder sleeve 8.

[0037] Reference Figure 2 A guide surface three 321 is provided on the side of the fastening block 32 close to the support rod 4, and the guide surface three 321 is inclined. When the cylinder sleeve 8 is placed, the cylinder sleeve 8 moves downward to push the guide surface three 321, and the fastening block 32 rotates away from the central axis of the support rod 4 synchronously with the guide surface three 321, thereby preventing the cylinder sleeve 8 from interfering with the fastening block 32 during installation, and at the same time avoiding the tedious operation of the operator manually rotating the fastening block 32 away from the support rod 4 and then installing the cylinder sleeve 8 to the supporting platform 31.

[0038] Reference Figure 2 and Figure 7 , the bracket 1 is fixedly connected with the gear ring 12, and the planetary gear mechanism 5 includes a rotation source 52, a driving gear 54, a connecting column 55, a driven gear 56, a sun gear 51 and a connecting gear 53. The rotation source 52 is fixedly connected to the lower end of the bracket 1, the driving gear 54 is fixedly sleeved on the driving shaft of the rotation source 52, the bracket 1 and the rotating frame 2 are both rotatably connected with the connecting column 55, the sun gear 51 and the driven gear 56 are respectively fixedly sleeved on the upper and lower ends of the connecting column 55, the driven gear 56 is meshed with the driving gear 54, and the sun gear 51 is rotatably connected to the upper surface of the rotating frame 2. The connecting gear 53 is rotatably connected with the rotating frame 2, and there are multiple connecting gears 53 along the circumferential array of the rotating frame 2. The connecting gear 53 is located between the sun gear 51 and the gear ring 12, and the sun gear 51 and the gear ring 12 are both meshed with the connecting gear 53. The rotation source 52 drives the sun gear 51 to rotate through the driving gear 54, the driven gear 56, and the connecting column 55 in sequence. The sun gear 51 cooperates with the gear ring 12 to drive the connecting gear 53 to revolve around the central axis of the connecting column 55 while rotating. The revolving connecting gear 53 drives the rotating frame 2 to rotate. The support rod 4 is coaxially fixedly connected to the connecting gear 53, and the support rod 4 and the connecting gear 53 are arranged one by one. Because the fastening mechanism 3 is fixedly connected to the rotating frame 2, the support rod 4 can rotate relative to the fastening mechanism 3.

[0039] Reference Figure 3 and Figure 4The outer side surface of the support rod 4 is fixedly connected with a brush 47, and a plurality of brushes 47 are arranged in an axial and circumferential array along the support rod 4. The bristles 47 rotate synchronously with the support rod 4 and cooperate with the scraper 41 to clean the dirt on the inner side surface of the cylinder liner 8, thereby improving the cleaning effect of the dirt on the inner side surface of the cylinder liner 8.

[0040] Reference Figure 4 , Figure 8 and Fig. 9 The support rod 4 has a liquid outlet groove 48 inside, and the liquid outlet groove 48 is used to transport cleaning liquid to the inner side of the cylinder sleeve 8. The rotating frame 2 has a transmission groove 24 connected to the inside of the liquid outlet groove 48, and the support 1 is rotatably connected to the support pipe 25 connected to the inside of the transmission groove 24, and the support pipe 25 is connected to an external water source. The external cleaning liquid is transported to the liquid outlet groove 48 through the support pipe 25 and the transmission groove 24 in sequence by a liquid pump. The liquid outlet groove 48 rotates synchronously with the support rod 4 to transport the cleaning liquid to the inner side of the cylinder sleeve 8. The cleaning liquid cooperates with the bristle 47 and the scraper 41 to clean the dirt on the inner side of the cylinder sleeve 8. A sealing ring 26 is arranged between the support rod 4 and the rotating frame 2.

[0041] Reference Figure 1 and Figure 8 The upper surface of the rotating frame 2 is rotatably connected with a connecting frame 6, and the connecting frame 6 is coaxially fixedly connected with the sun gear 51, so that the connecting frame 6 can rotate under the drive of the planetary gear mechanism 5, and the outer side of the connecting frame 6 is fixedly connected with a brush 61 that can abut against the outer side of the cylinder sleeve 8, and the brush 61 rotates relative to the outer side of the cylinder sleeve 8 to clean the outer side of the cylinder sleeve 8. The interior of the connecting frame 6 is provided with an infusion groove 62, and the infusion groove 62 is connected with the interior of the support tube 25. The cleaning liquid is transported to the outer side of the cylinder sleeve 8 through the support tube 25 and the infusion groove 62, thereby cleaning the outer side of the cylinder sleeve 8.

[0042] Reference Figure 1 and Fig.10 A protective cover 7 is fixedly connected to the upper surface of the bracket 1, and the support rod 4 and the connecting frame 6 are located in the protective cover 7. The protective cover 7 is used to prevent the cleaning liquid and the scraped dirt from splashing with the rotation of the rotating frame 2. A protective plate 27 is fixedly connected to the upper surface of the rotating frame 2. The protective plate 27 is located above the planetary gear mechanism 5. The protective plate 27 prevents the scraped dirt from flowing into the planetary gear mechanism 5 and causing the planetary gear mechanism 5 to malfunction.

[0043] The implementation principle of the cleaning device for the cylinder sleeve of a drilling pump according to an embodiment of the present invention is as follows: while the support rod 4 revolves around the central axis of the bracket 1, the support rod 4 reciprocates in the vertical direction, and the scraper 41 reciprocates in the vertical direction while rotating with the support rod 4 relative to the cylinder sleeve 8, thereby scraping off the dirt on the inner side of the cylinder sleeve 8. In the vertical direction, the scraper 41 moves downward in an inclined state, starts to rotate to a vertical state at the lowest point, and moves upward in a vertical state, and starts to rotate to an inclined state at the highest point. Brush 1 47 cooperates with the scraper 41 to clean the inner side of the cylinder sleeve 8, and at the same time, the support rod 4 delivers cleaning liquid to the inner side of the cylinder sleeve 8 through the liquid outlet groove 48. Brush 2 61 cleans the outer side of the cylinder sleeve 8, and at the same time, the connecting frame 6 delivers cleaning liquid to the outer side of the cylinder sleeve 8 through the liquid infusion groove 62.

[0044] In addition, it should be noted that in the description of the present invention, the terms "install", "connect" and "connect" should be understood in a broad sense.

[0045] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A cleaning device for a cylinder liner of a drilling pump, comprising a bracket (1) and a rotating frame (2), characterized in that: A fastening mechanism (3) for fixing the cylinder sleeve (8) is fixedly connected to the upper surface of the rotating frame (2), and the cylinder sleeve (8) stands upright on the fastening mechanism (3); The rotating frame (2) is connected to a support rod (4), and a scraper (41) for cleaning the inner side of the cylinder sleeve (8) is rotatably connected to the side wall of the support rod (4), and the scraper (41) is arranged obliquely. The bottom of the bracket (1) is provided with a limiting surface (11) undulating in a circumferential direction, and the support rod (4) is sleeved with a compression spring (42) for making the support rod (4) abut against the limiting surface (11). The rotating frame (2) is provided with a planetary gear mechanism (5), and the planetary gear mechanism (5) is used to drive the support rod (4) and the rotating frame (2) to rotate.

2. The cleaning device for the cylinder liner of a drilling pump according to claim 1, characterized in that: The outer side surface of the scraper (41) is fixedly sleeved with a transmission gear (43), the transmission gear (43) is meshed with a transmission rack (44), the transmission rack (44) is fixedly connected with a connecting ring (45), the connecting ring (45) is slidably connected to the support rod (4) through a keyway (49), the connecting ring (45) is connected with a tension spring (46), the rotating frame (2) is connected with a slide bar (21), the slide bar (21) is slidably connected with a guide block (22), the rotating frame (2) is provided with a guide surface (23) capable of abutting against the guide block (22), the slide bar (21) is connected with a return spring (211), and the guide block (22) is connected with a return spring (221).

3. The cleaning device for the cylinder liner of a drilling pump according to claim 1, characterized in that: The fastening mechanism (3) comprises a bearing platform (31) fixedly connected to the upper surface of the rotating frame (2), the bearing platform (31) being used to place the cylinder sleeve (8), the bearing platform (31) being hinged with a plurality of fastening blocks (32) along the circumferential direction, the fastening blocks (32) being in contact with the outer side surfaces of the cylinder sleeve (8), and an extrusion torsion spring (33) being connected between the bearing platform (31) and the fastening blocks (32).

4. The cleaning device for the cylinder liner of a drilling pump according to claim 1, characterized in that: The support (1) is fixedly connected to a gear ring (12); the planetary gear mechanism (5) comprises a sun gear (51) and a rotation source (52) for driving the sun gear (51) to rotate; the rotation source (52) is fixedly connected to the support (1); a connecting gear (53) is rotatably connected to the top wall of the rotating frame (2); the connecting gear (53) is located between the sun gear (51) and the gear ring (12); the sun gear (51) and the gear ring (12) are both meshed with the connecting gear (53); and the support rod (4) is fixedly connected to the connecting gear (53).

5. The cleaning device for the cylinder liner of a drilling pump according to claim 3, characterized in that: A guide surface three (321) is provided on the side of the fastening block (32) close to the support rod (4).

6. The cleaning device for the cylinder liner of a drilling pump according to claim 1, characterized in that: A liquid outlet groove (48) is provided inside the support rod (4), and the liquid outlet groove (48) is used to transport cleaning liquid to the inner side surface of the cylinder sleeve (8).

7. A cleaning device for a cylinder liner of a drilling pump according to claim 6, characterized in that: The rotating frame (2) is provided with a transmission groove (24) which can be communicated with the inside of the liquid outlet groove (48); the bracket (1) is rotatably connected to a support pipe (25) which is communicated with the inside of the transmission groove (24); the support pipe (25) is communicated with an external water source; and a sealing ring (26) is provided between the support rod (4) and the inner side surface of the transmission groove (24).

8. The cleaning device for the cylinder liner of a drilling pump according to claim 1, characterized in that: The upper surface of the rotating frame (2) is rotatably connected to a connecting frame (6), the connecting frame (6) can rotate under the drive of the planetary gear mechanism (5), and the outer side surface of the connecting frame (6) is fixedly connected to a second brush bristle (61) that can abut against the outer side surface of the cylinder sleeve (8).

9. The cleaning device for the cylinder liner of a drilling pump according to claim 8, characterized in that: The connection frame (6) is provided with an infusion groove (62) for conveying cleaning liquid to the outer side surface of the cylinder sleeve (8), and the infusion groove (62) is communicated with the interior of the support tube (25).

10. The cleaning device for the cylinder liner of a drilling pump according to claim 8, characterized in that: A protective cover (7) is fixedly connected to the upper surface of the bracket (1), the support rod (4) and the connecting frame (6) are located inside the protective cover (7), and a protective plate (27) is fixedly connected to the upper surface of the rotating frame (2), and the protective plate (27) is located above the planetary gear mechanism (5).

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