A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool

Abstract

The present invention relates to the technical field of fracturing pump equipment, and discloses a nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool, including nine groups of cylinders and track plates arranged at equal intervals, the nine groups of cylinders being an integrated structure, the top of the cylinder being threadedly connected to a discharge cap, and the side wall of the cylinder being threadedly connected to a suction cap. Through the design of the control mechanism, when the cylinder fails and needs emergency repair, the moving block can be controlled to move quickly to the part to be repaired, and then the round rod is controlled to rotate to adjust the direction of the swing plate, so as to select the operation of the discharge cap or the suction cap, and then the swing plate is controlled to flip and adjust the angle, and the position of the adjustment block is adjusted, until the control block can be put into the hole groove on the discharge cap or the suction cap, and then the control block can be controlled to rotate to replace the manual disassembly work, which greatly saves manpower.

Description

Technical Field

[0001] The present invention relates to the technical field of fracturing pump equipment, and in particular to a nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool. Background Art

[0002] In the oil field, fracturing is an important process. Through the artificial use of hydraulic force, cracks are formed in the oil and gas layers, thereby improving the flow environment of oil underground and increasing oil well production. The main function of the fracturing pump is to crack the oil and gas layers by pumping hydraulic force. It is suitable for various fracturing pump fluid injection operations in deep wells, medium-deep wells and shallow wells in oil and gas fields.

[0003] The Chinese patent application with publication number CN117823379A proposes a seven-cylinder fracturing pump integrated hydraulic end assembly, including seven groups of intervally arranged hydraulic cylinders, and the seven groups of hydraulic cylinders are integrated into an integrated structure; each group of hydraulic cylinders is respectively provided with a plunger, a suction end assembly and a discharge end assembly, and the plunger is sealed in the hydraulic cylinder through a packing seal assembly and performs reciprocating linear motion in the hydraulic cylinder; the suction end assembly and the discharge end assembly correspond to each other and are located on the same straight line. Its structure is reliable, with seven hydraulic cylinders integrated into an integrated structure, higher displacement, lower discharge pulsation, meeting the needs of large displacement and high pressure at the well site, while increasing the number of cylinders, improving the single unit displacement of the fracturing pump, reducing the number of on-site fracturing units, and effectively reducing the output flow pulsation and output pressure pulsation of the fracturing pump on the basis of low stroke frequency and large displacement.

[0004] The above device can effectively reduce the output flow pulsation and output pressure pulsation of the fracturing pump. During the whole fracturing operation, since the hydraulic end assembly is the core of the whole fracturing operation, once the hydraulic end assembly fails, it needs to be repaired in time. During the repair process, the outermost pressure cap needs to be removed first. To remove the pressure cap, a removal tool must be used to insert it into the pressure cap and rotate it to unscrew it. Since the pressure cap is generally heavy, it is labor-intensive to remove it manually. The above device does not improve this problem. Therefore, a nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool is proposed to solve the above problem. Summary of the invention

[0005] In order to solve the above-mentioned problems, the present invention provides a nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool.

[0006] The present invention provides a nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool that adopts the following technical solution:

[0007] A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool, comprising nine groups of hydraulic cylinders and track plates arranged at equal intervals, the nine groups of hydraulic cylinders being an integrated structure, the top of the hydraulic cylinder being threadedly connected to a discharge pressure cap, a side wall of the hydraulic cylinder being threadedly connected to a suction pressure cap, two sockets being fixedly connected to the outer side of the hydraulic cylinder, the track plate extending into the socket and matching the socket, and a control mechanism being arranged on the track plate;

[0008] The control mechanism includes a moving block, which passes through a track plate and is slidably connected to the track plate, a round rod is rotatably connected inside the moving block, the round rod extends out of the moving block, the bottom of the round rod is fixedly connected to a main plate, a swing plate is provided on one side of the main plate, the swing plate extends into the inner side of the main plate and is connected to the main plate through a rotating shaft, an adjusting block is slidably connected to the swing plate, a sleeve is rotatably connected to the adjusting block, the sleeve passes through the adjusting block, a control block is provided at the bottom of the sleeve, a square rod is fixedly connected to the top of the control block, the square rod passes through the sleeve and matches the sleeve, an extension plate is integrally formed on the adjusting block, and a first motor is fixedly connected to the bottom of the extension plate, the first motor is fixedly connected to a first gear through an output shaft, and a second gear is fixedly connected to the outside of the sleeve, and the first gear is meshed with the second gear.

[0009] By adopting the above technical solution, when the hydraulic cylinder fails and needs emergency repair, the moving block can be controlled to move quickly to the part to be repaired, and then the round rod can be controlled to rotate to adjust the direction of the swing plate, so as to select the operation of the discharge pressure cap or the suction pressure cap, and then the swing plate is controlled to flip and adjust the angle, and the position of the adjustment block is adjusted until the control block can be put into the hole groove on the discharge pressure cap or the suction pressure cap, and then the control block can be controlled to rotate to replace manual disassembly work, which greatly saves manpower.

[0010] Preferably, a second motor is fixedly connected inside the moving block, the second motor is fixedly connected to a third gear via an output shaft, a long plate is fixedly connected to the track plate, a first rack is fixedly connected to the long plate, and the first rack is meshed with the third gear.

[0011] By adopting the above technical solution, the third gear can drive the moving block to move after rotating.

[0012] Preferably, a first auxiliary block is slidably connected inside the main plate, a first electric push rod is fixedly connected inside the main plate, one end of the first electric push rod is fixedly connected to one side of the first auxiliary block, a first push-pull rod is arranged between the first auxiliary block and the swing plate, and both ends of the first push-pull rod are respectively movably connected to the first auxiliary block and the swing plate through movable hinges.

[0013] By adopting the above technical solution, the auxiliary block can drive the first push-pull rod to flip after moving, and the first push-pull rod flips the main plate at a certain angle.

[0014] Preferably, a second electric push rod is fixedly connected inside the swing plate, and one end of the second electric push rod is fixedly connected to one end of the adjustment block.

[0015] By adopting the above technical solution, the second electric push rod can push and pull the adjustment block after working.

[0016] Preferably, the square rod is rotatably connected to a rectangular plate on the outside, a U-shaped plate is fixedly connected to the top of the rectangular plate, the U-shaped plate passes through the adjustment block, one end of the adjustment block is fixedly connected to a placement plate, the placement plate extends out of the track plate, and a second auxiliary block is slidably connected to the placement plate.

[0017] By adopting the above technical solution, the U-shaped plate can be raised and lowered on the adjusting block.

[0018] Preferably, a third electric push rod is fixedly connected to one side of the second auxiliary block, and the third electric push rod is fixedly connected to the inside of the placement plate.

[0019] By adopting the above technical solution, the third electric push rod can drive the second auxiliary block to move and adjust on the inner side of the placement plate after working.

[0020] Preferably, a second push-pull rod is movably connected to the top of the second auxiliary block via a movable hinge seat, and one end of the second push-pull rod is movably connected to one side of the U-shaped plate via a movable hinge seat.

[0021] By adopting the above technical solution, the second push-pull rod can drive the U-shaped plate to move up and down after flipping.

[0022] Preferably, the outside of the round rod is fixedly connected with a fourth gear, the inside of the moving block is fixedly connected with a limiting plate, the outside of the limiting plate is slidably connected with a strip plate, one side of the strip plate is fixedly connected with a second rack, and the fourth gear is meshed with the second rack.

[0023] By adopting the above technical solution, the first rack can drive the fourth gear to rotate after moving.

[0024] Preferably, a square plate is integrally formed on one side of the strip plate, a fourth electric push rod is fixedly connected to the square plate, and the fourth electric push rod is fixedly connected to the inner side of the limiting plate.

[0025] By adopting the above technical solution, the fourth electric push rod can push the square plate after working, and the square plate drives the strip plate to move.

[0026] Preferably, both side walls of the track plate are provided with sockets, and a positioning assembly is provided on the socket, the positioning assembly includes a frame plate, the frame plate is fixedly connected to the outside of the socket, a fixing plate is slidably connected to the inside of the frame plate, the fixing plate extends into the inside of the socket, the fixing plate passes through the socket and matches the socket, one side of the socket is rotatably connected to a threaded adjustment rod, the threaded adjustment rod passes through a side wall of the frame plate and is rotatably connected to the frame plate, one end of the threaded adjustment rod is fixedly connected to a rotating plate, the threaded adjustment rod passes through a side wall of the fixing plate and is threadedly connected to the fixing plate.

[0027] By adopting the above technical solution, the track plate can be installed on the hydraulic cylinder, inserted into the socket during installation, and the installation of the track plate is completed after the fixing plate is controlled to penetrate the track plate.

[0028] In summary, the present invention includes the following beneficial technical effects:

[0029] 1. A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool. Through the design of the control mechanism, when the hydraulic cylinder fails and needs emergency repair, the moving block can be controlled to move quickly to the repair site, and then the round rod is controlled to rotate to adjust the direction of the swing plate, so as to select the operation of the discharge pressure cap or the suction pressure cap, and then the swing plate is controlled to flip and adjust the angle, and the position of the adjustment block is adjusted until the control block can be put into the hole groove on the discharge pressure cap or the suction pressure cap. The control block can be controlled to rotate to replace manual disassembly, which greatly saves manpower.

[0030] 2. A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool. When installing, directly insert the track plate into the two sockets, turn the threaded adjustment rod, and the threaded adjustment rod drives the fixed plate to move until the fixed plate passes through the socket on the track plate. The installation of the track plate can be completed. Accordingly, the entire loading and unloading process is simple and convenient, which is conducive to the user's independent selection, and can provide convenience for the transportation and storage of the hydraulic cylinder, increasing flexibility during use.

[0031] 3. A nine-cylinder integrated hydraulic end assembly maintenance tool for a fracturing pump. It adopts a nine-cylinder integrated structure. Under the same stroke frequency, plunger diameter and stroke conditions of the fracturing pump, the displacement of the nine-cylinder plunger pump is increased by about 80% compared with the currently widely used five-cylinder plunger pump. At the same time, it also has the advantages of lower discharge flow pulsation and pressure pulsation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 It is a structural cross-sectional view of the track plate in the present invention;

[0034] Figure 3It is a structural schematic diagram of the swing plate in the present invention;

[0035] Figure 4 It is a bottom view of the main body plate in the present invention;

[0036] Figure 5 It is a top view of the swing plate in the present invention;

[0037] Figure 6 It is a structural cross-sectional view of the moving block in the present invention;

[0038] Figure 7 It is a cross-sectional structural diagram of the socket in the present invention;

[0039] Figure 8 for Figure 7 Enlarged view of point A in .

[0040] Explanation of reference numerals: 1. cylinder; 2. track plate; 3. discharge pressure cap; 4. suction pressure cap; 5. socket; 6. control mechanism; 61. moving block; 62. round rod; 63. main plate; 64. swing plate; 65. adjustment block; 66. sleeve; 67. control block; 68. square rod; 69. extension plate; 691. first motor; 692. first gear; 693. second gear; 694. second motor; 695. third gear; 696. long plate; 697. first rack; 698. first auxiliary Block; 699, the first electric push rod; 681, the first push-pull rod; 682, the second electric push rod; 683, the rectangular plate; 684, the U-shaped plate; 685, the placement plate; 686, the second auxiliary block; 687, the third electric push rod; 688, the second push-pull rod; 689, the fourth gear; 671, the limit plate; 672, the strip plate; 673, the second rack; 674, the fourth electric push rod; 7, the jack; 8, the positioning assembly; 81, the frame plate; 82, the fixing plate; 83, the threaded adjustment rod; 84, the rotating plate. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-8 The present invention is described in further detail.

[0042] The present invention discloses a nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool. Figure 1-8 A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool, comprising nine groups of hydraulic cylinders 1 and track plates 2 arranged at equal intervals, the nine groups of hydraulic cylinders 1 are composed of an integrated structure, the top of the hydraulic cylinder 1 is connected with a discharge pressure cap 3 by a thread, a side wall of the hydraulic cylinder 1 is connected with a suction pressure cap 4 by a thread, the outer side of the hydraulic cylinder 1 is fixedly connected with two sockets 5, the track plate 2 extends into the socket 5 and matches the socket 5, and a control mechanism 6 is arranged on the track plate 2;

[0043] The control mechanism 6 includes a moving block 61, which passes through the track plate 2 and is slidably connected to the track plate 2. A round rod 62 is rotatably connected inside the moving block 61, and the round rod 62 extends out of the moving block 61. A main plate 63 is fixedly connected to the bottom of the round rod 62. A swing plate 64 is provided on one side of the main plate 63. The swing plate 64 extends into the inner side of the main plate 63 and is connected to the main plate 63 through a rotating shaft. An adjustment block 65 is slidably connected to the swing plate 64. A sleeve 66 is rotatably connected to the adjustment block 65. The sleeve 66 passes through the adjustment block 65, and a control block 67 is provided at the bottom of the sleeve 66.

[0044] A square rod 68 is fixedly connected to the top of the control block 67, and the square rod 68 passes through the sleeve 66 and matches with the sleeve 66. An extension plate 69 is integrally formed on the adjustment block 65, and a first motor 691 is fixedly connected to the bottom of the extension plate 69. The first motor 691 is fixedly connected to the first gear 692 through the output shaft, and the second gear 693 is fixedly connected to the outside of the sleeve 66. The first gear 692 is meshed with the second gear 693. When the hydraulic cylinder 1 fails to work and needs emergency repair, the moving block 61 can be controlled to move quickly to the part to be repaired, and then the round rod 62 is controlled to rotate to adjust the direction of the swing plate 64, so as to select the operation of the discharge pressure cap 3 or the suction pressure cap 4, and then the swing plate 64 is controlled to flip and adjust the angle, and the position of the adjustment block 65 is adjusted, until the control block 67 can be put into the hole groove on the discharge pressure cap 3 or the suction pressure cap 4, the control block 67 can be controlled to rotate to replace the manual disassembly work, which greatly saves manpower.

[0045] A second motor 694 is fixedly connected inside the moving block 61, and the second motor 694 is fixedly connected to a third gear 695 through an output shaft. A long plate 696 is fixedly connected to the track plate 2, and a first rack 697 is fixedly connected to the long plate 696, and the first rack 697 is meshed with the third gear 695. After the third gear 695 rotates, the moving block 61 itself can be driven to move. A first auxiliary block 698 is slidably connected inside the main plate 63, and a first electric push rod 699 is fixedly connected inside the main plate 63. One end of the first electric push rod 699 is fixedly connected to one side of the first auxiliary block 698. A first push-pull rod 681 is arranged between the first auxiliary block 698 and the swing plate 64. The two ends of the first push-pull rod 681 are respectively movably connected to the first auxiliary block 698 and the swing plate 64 through a movable hinge seat. After the auxiliary block moves, it can drive the first push-pull rod 681 to flip, and the first push-pull rod 681 flips the main plate 63 at an angle;

[0046] A second electric push rod 682 is fixedly connected inside the swing plate 64, and one end of the second electric push rod 682 is fixedly connected to one end of the adjustment block 65. After the second electric push rod 682 is working, the adjustment block 65 can be pushed and pulled. A rectangular plate 683 is rotatably connected to the outside of the square rod 68. A U-shaped plate 684 is fixedly connected to the top of the rectangular plate 683. The U-shaped plate 684 penetrates the adjustment block 65. A placement plate 685 is fixedly connected to one end of the adjustment block 65. The placement plate 685 extends out of the track plate 2. A second auxiliary block 686 is slidably connected to the placement plate 685. The U-shaped plate 684 can be lifted up and down on the adjustment block 65. A third electric push rod 687 is fixedly connected to one side of the second auxiliary block 686. The third electric push rod 687 is fixedly connected to the inside of the placement plate 685. After the third electric push rod 687 is working, it can drive the second auxiliary block 686 to move and adjust inside the placement plate 685.

[0047] The top of the second auxiliary block 686 is movably connected to a second push-pull rod 688 through a movable hinge seat, and one end of the second push-pull rod 688 is movably connected to one side of the U-shaped plate 684 through a movable hinge seat. After the second push-pull rod 688 is flipped, it can drive the U-shaped plate 684 to move up and down. The fourth gear 689 is fixedly connected to the outside of the round rod 62, and the limiting plate 671 is fixedly connected to the inside of the moving block 61. The strip plate 672 is slidably connected to the outside of the limiting plate 671. A second rack 673 is fixedly connected to one side of the strip plate 672. The fourth gear 689 is meshed with the second rack 673. After the first rack 697 moves, the fourth gear 689 can be driven to rotate. A square plate is integrally formed on one side of the strip plate 672, and a fourth electric push rod 674 is fixedly connected to the square plate. The fourth electric push rod 674 is fixedly connected to the inner side of the limiting plate 671. After the fourth electric push rod 674 works, it can push the square plate, and the square plate drives the strip plate 672 to move.

[0048] There are sockets 7 on both side walls of the track plate 2, and a positioning assembly 8 is provided on the socket 5. The positioning assembly 8 includes a frame plate 81, which is fixedly connected to the outside of the socket 5. A fixing plate 82 is slidably connected inside the frame plate 81, and the fixing plate 82 extends into the inside of the socket 5. The fixing plate 82 passes through the socket 7 and matches the socket 7. A threaded adjusting rod 83 is rotatably connected to one side of the socket 5. The threaded adjusting rod 83 passes through a side wall of the frame plate 81 and is rotatably connected to the frame plate 81. One end of the threaded adjusting rod 83 is fixedly connected to a rotating plate 84, and the threaded adjusting rod 83 passes through a side wall of the fixing plate 82 and is threadedly connected to the fixing plate 82. The track plate 2 can be installed on the hydraulic cylinder 1, inserted into the socket 5 during installation, and the installation of the track plate 2 is completed after the fixing plate 82 is controlled to pass through the track plate 2.

[0049] In the actual operation process, the device is first connected to the power supply. The internal structure of the liquid cylinder 1 in the device is the same as the internal structure in the Chinese patent application with application number CN117823379A, so the working principle and structure of how the liquid cylinder 1 sucks in and squeezes out the fracturing fluid when working are not further explained. Different from the existing five-cylinder structure and the patent application with application number CN117823379A, the device adopts a nine-cylinder integrated structure, which realizes that under the same stroke number, plunger diameter and stroke conditions of the fracturing pump, the displacement of the nine-cylinder plunger pump is increased by about 80% compared with the existing widely used five-cylinder plunger pump, and it also has the advantages of lower discharge flow pulsation and pressure pulsation;

[0050] When the cylinder 1 is working, once a sudden failure is encountered and emergency repair is required, the second motor 694 works and drives the third gear 695 to rotate. Since the third gear 695 is meshed with the first rack 697, the moving block 61 can move on the track plate 2 at this time. When the moving block 61 moves to the corresponding discharge pressure cap 3 or suction pressure cap 4 side, the fourth electric push rod 674 pushes the square plate, the square plate drives the strip plate 672 to move, the strip plate 672 drives the second rack 673 to move, the second rack 673 drives the fourth gear 689 to rotate, the fourth gear 689 drives the round rod 62 to rotate, and the round rod 62 drives the main plate 63 to rotate. It can be seen from the above connection relationship that the position of the adjustment block 65 on the swing plate 64 can be adjusted to locate the direction to be operated, and the main plate 63 can be rotated and adjusted in this way. When not in use, the swing plate 64 can be adjusted to the inner side of the track plate 2 to achieve a storage effect, thereby avoiding obstruction to the suction pressure cap 4 or the discharge pressure cap 3.

[0051] When the position of the above swing plate 64 is adjusted, the first electric push rod 699 pushes the first auxiliary block 698, and the first auxiliary block 698 drives the first push-pull rod 681 to flip and swing. After the first push-pull rod 681 swings, it pushes and pulls the swing plate 64, causing the connecting end of the swing plate 64 and the main plate 63 to swing around the rotating shaft as the axis, so as to adjust the angle. It can be seen from the above connection relationship that when the square rod 68 is adjusted to be perpendicular to the corresponding discharge pressure cap 3 or suction pressure cap 4, the second electric push rod 682 pushes the adjustment block 65, and the adjustment block 65 drives the sleeve 66 to move, the sleeve 66 drives the square rod 68 to move, and the square rod 68 drives the control block 67 to move for position adjustment;

[0052] When the control block 67 moves to one side of the corresponding hole groove on the discharge pressure cap 3 or the suction pressure cap 4, the third electric push rod 687 pushes and pulls the second auxiliary block 686, and the second auxiliary block 686 moves and drives the second push-pull rod 688 to flip, and the second push-pull rod 688 flips and pushes and pulls the U-shaped plate 684, so that the U-shaped plate 684 is adjusted to rise and fall, and the U-shaped plate 684 drives the rectangular plate 683 to move, and the rectangular plate 683 drives the square rod 68 to rise and fall, and the square rod 68 drives the control block 67 to move to enter the extrusion In the outlet pressure cap or the suction pressure cap 4, the first motor 691 works and drives the first gear 692 to rotate, the first gear 692 drives the second gear 693 to rotate, the second gear 693 drives the sleeve 66 to rotate, the sleeve 66 drives the square rod 68 to rotate, the square rod 68 drives the control block 67 to rotate, then the control block 67 drives the extrusion pressure cap or the suction pressure cap 4 to rotate, so as to take it out and disassemble it, the whole process does not require much manual participation, compared with manual removal with the help of removal tools, it is more labor-saving and convenient;

[0053] The track plate 2 and the cylinder 1 can be conveniently loaded and unloaded, thereby facilitating the transportation and storage of the cylinder 1 and increasing flexibility in use. During specific installation, the track plate 2 is directly inserted into the two sockets 5, and the threaded adjustment rod 83 is rotated. The threaded adjustment rod 83 drives the fixed plate 82 to move until the fixed plate 82 passes through the insertion hole 7 on the track plate 2. The installation of the track plate 2 can be completed. Similarly, during removal, the threaded adjustment rod 83 is also rotated. After the fixed plate 82 leaves the insertion hole 7, the track plate 2 can be removed. The entire loading and unloading process is simple and convenient, which is conducive to users making independent choices.

[0054] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool, comprising nine groups of hydraulic cylinders (1) and track plates (2) arranged at equal intervals, wherein the nine groups of hydraulic cylinders (1) are integrated into a one-piece structure, and characterized in that: The top of the liquid cylinder (1) is connected to a discharge pressure cap (3) via a thread, a side wall of the liquid cylinder (1) is connected to a suction pressure cap (4) via a thread, the outer side of the liquid cylinder (1) is fixedly connected to two sockets (5), the track plate (2) extends into the inside of the sockets (5) and matches with the sockets (5), and a control mechanism (6) is provided on the track plate (2); The control mechanism (6) comprises a moving block (61), the moving block (61) penetrates the track plate (2) and is slidably connected to the track plate (2), a round rod (62) is rotatably connected inside the moving block (61), the round rod (62) extends out of the moving block (61), a main body plate (63) is fixedly connected at the bottom of the round rod (62), a swing plate (64) is arranged on one side of the main body plate (63), the swing plate (64) extends into the inner side of the main body plate (63) and is connected to the main body plate (63) via a rotating shaft, an adjusting block (65) is slidably connected to the swing plate (64), and a sleeve (66) is rotatably connected to the adjusting block (65), The sleeve (66) passes through the adjustment block (65); a control block (67) is arranged at the bottom of the sleeve (66); a square rod (68) is fixedly connected to the top of the control block (67); the square rod (68) passes through the sleeve (66) and matches the sleeve (66); an extension plate (69) is integrally formed on the adjustment block (65); a first motor (691) is fixedly connected to the bottom of the extension plate (69); the first motor (691) is fixedly connected to a first gear (692) via an output shaft; a second gear (693) is fixedly connected to the outside of the sleeve (66); the first gear (692) is meshed with the second gear (693).

2. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 1, characterized in that: The moving block (61) is fixedly connected to a second motor (694) inside, and the second motor (694) is fixedly connected to a third gear (695) via an output shaft. The track plate (2) is fixedly connected to a long plate (696), and the long plate (696) is fixedly connected to a first rack (697), and the first rack (697) is meshed with the third gear (695).

3. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 1, characterized in that: The main body plate (63) is internally slidably connected to a first auxiliary block (698), and the main body plate (63) is internally fixedly connected to a first electric push rod (699), one end of the first electric push rod (699) is fixedly connected to one side of the first auxiliary block (698), a first push-pull rod (681) is provided between the first auxiliary block (698) and the swing plate (64), and both ends of the first push-pull rod (681) are respectively movably connected to the first auxiliary block (698) and the swing plate (64) through movable hinges.

4. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 1, characterized in that: A second electric push rod (682) is fixedly connected inside the swing plate (64), and one end of the second electric push rod (682) is fixedly connected to one end of the adjustment block (65).

5. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 1, characterized in that: The square rod (68) is rotatably connected to a rectangular plate (683) on the outside, and a U-shaped plate (684) is fixedly connected to the top of the rectangular plate (683). The U-shaped plate (684) passes through the adjustment block (65). One end of the adjustment block (65) is fixedly connected to a placement plate (685). The placement plate (685) extends out of the track plate (2), and a second auxiliary block (686) is slidably connected to the placement plate (685).

6. A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 5, characterized in that: A third electric push rod (687) is fixedly connected to one side of the second auxiliary block (686), and the third electric push rod (687) is fixedly connected to the inside of the placement plate (685).

7. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 5, characterized in that: The top of the second auxiliary block (686) is movably connected to a second push-pull rod (688) via a movable hinge, and one end of the second push-pull rod (688) is movably connected to one side of the U-shaped plate (684) via a movable hinge.

8. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 1, characterized in that: The fourth gear (689) is fixedly connected to the outside of the round rod (62), the limit plate (671) is fixedly connected to the inside of the moving block (61), the limit plate (671) is slidably connected to the outside of the strip plate (672), one side of the strip plate (672) is fixedly connected to the second rack (673), and the fourth gear (689) is meshed with the second rack (673).

9. A nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 8, characterized in that: A square plate is integrally formed on one side of the strip plate (672), a fourth electric push rod (674) is fixedly connected to the square plate, and the fourth electric push rod (674) is fixedly connected to the inner side of the limit plate (671).

10. The nine-cylinder fracturing pump integrated hydraulic end assembly maintenance tool according to claim 1, characterized in that: Both side walls of the track plate (2) are provided with insertion holes (7). The socket (5) is provided with a positioning assembly (8), which comprises a frame plate (81). The frame plate (81) is fixedly connected to the outside of the socket (5). A fixing plate (82) is slidably connected inside the frame plate (81). The fixing plate (82) extends into the inside of the socket (5). The fixing plate (82) penetrates the insertion hole (7) and matches the insertion hole (7). One side of the socket (5) is rotatably connected with a threaded adjustment rod (83). The threaded adjustment rod (83) penetrates a side wall of the frame plate (81) and is rotatably connected to the frame plate (81). One end of the threaded adjustment rod (83) is fixedly connected with a rotating plate (84). The threaded adjustment rod (83) penetrates a side wall of the fixing plate (82) and is threadedly connected to the fixing plate (82).

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