Multi-purpose disassembly and assembly device

Abstract

The present invention discloses a multi-purpose disassembly and assembly device, which relates to the technical field of disassembly and assembly tools, and is used to solve the problems of high labor intensity, low efficiency and high labor cost when operators disassemble parts (such as glands, caps, etc.) in the hydraulic end in the prior art. The device includes a mounting seat, a linear drive mechanism, a rotation drive mechanism, a first disassembly and assembly tool and a second disassembly and assembly tool, and the linear drive mechanism and the rotation drive mechanism are both installed on the mounting seat; the linear drive mechanism can drive the first disassembly and assembly tool to move along the first linear direction, and the first disassembly and assembly tool is used to cooperate with the disassembled part to drive the corresponding disassembled part to move synchronously; the rotation drive mechanism can drive the second disassembly and assembly tool to rotate, and the second disassembly and assembly tool is used to cooperate with the disassembled part to drive the corresponding disassembled part to move synchronously.

Description

Technical Field

[0001] The invention relates to the technical field of disassembly and assembly tools, and in particular to a multi-purpose disassembly and assembly device. Background Art

[0002] Fracturing trucks are widely used in the oil and gas industry to inject high-pressure proppants and fracturing fluids into oil and gas wells. The plunger pump is the core working component of the fracturing truck. Due to factors such as high pressure, corrosion and proppant wear, the hydraulic end of the plunger pump frequently fails. During use, the components of the hydraulic end (such as glands, caps, etc.) need to be frequently disassembled.

[0003] like Figure 1 As shown, the hydraulic end in the prior art includes a valve box 101, an inner cavity 102 is provided in the valve box 101, and a mounting hole for connecting the inner cavity 102 with the outside is also provided on the valve box 101, the mounting hole includes a small diameter section close to the inner cavity 102 and a large diameter section away from the inner cavity 102, a pressure cover 103 is interference fitted in the small diameter section, a pressure cap 104 is screwed into the large diameter section by a thread, and matching threads are provided on the outer circumferential surface of the pressure cap 104 and the inner wall surface of the large diameter section; a hexagonal hole 106 coaxial with the mounting hole is provided on the pressure cap 104, and the hexagonal hole 106 has an orifice facing away from the inner cavity 102, and a threaded hole 105 coaxial with the mounting hole is provided on the pressure cover 103, and the threaded hole 105 has an orifice facing away from the inner cavity 102.

[0004] In the prior art, when removing the pressure cap 104, an L-shaped wrench or a Z-shaped wrench with a hexagonal head is inserted into the hexagonal hole 106 of the pressure cap 104, and then the wrench is struck with a hammer to rotate the wrench, thereby causing the pressure cap 104 to rotate relative to the valve box 101, thereby gradually removing the pressure cap 104; when removing the pressure cover 103, a matching tool is required, and the matching tool has a threaded head, which can be screwed into the threaded hole 105 of the pressure cover 103. A hammer and a stopper are provided at one end of the matching tool away from the threaded head. The hammer continuously moves in a direction away from the threaded head and collides with the stopper, thereby gradually pulling the pressure cover 103 out of the mounting hole.

[0005] In the prior art, the gland and the cap are both disassembled by manual force, which places great labor intensity on operators, and the manual disassembly efficiency is low, resulting in high labor costs. Summary of the invention

[0006] The object of the present invention is to provide a multi-purpose disassembly and assembly device for solving the problems of high labor intensity, low efficiency and high labor cost when operators disassemble parts (such as glands, caps, etc.) in the hydraulic end in the prior art.

[0007] In order to achieve the above-mentioned purpose, the multi-purpose disassembly and assembly device provided by the present invention adopts the following technical solutions:

[0008] In some embodiments of the present application, the multi-purpose disassembly and assembly device comprises:

[0009] Mounting seat;

[0010] A linear drive mechanism is mounted on the mounting base;

[0011] A rotating driving mechanism is mounted on the mounting seat;

[0012] A first disassembly and assembly tool, wherein the linear drive mechanism can drive the first disassembly and assembly tool to move along a first linear direction, and the first disassembly and assembly tool is used to cooperate with the disassembled part to drive the corresponding disassembled part to move synchronously;

[0013] The second disassembly and assembly tool, the rotation drive mechanism can drive the second disassembly and assembly tool to rotate, and the second disassembly and assembly tool is used to cooperate with the disassembled part to drive the corresponding disassembled part to move synchronously.

[0014] The multi-purpose disassembly and assembly device is provided with a linear drive mechanism and a rotation drive mechanism. The linear drive mechanism drives the first disassembly and assembly tool to move linearly, and at the same time drives the disassembled part that moves synchronously with the first disassembly and assembly tool to move, so that the corresponding disassembled part can be disassembled or installed from the installation position. For example, for the gland in the hydraulic end, a threaded column can be set on the first disassembly and assembly tool, and the threaded column can be screwed into the threaded hole on the gland to achieve the fixation of the first disassembly and assembly tool to the gland. Then, the first disassembly and assembly tool is fixed to the linear drive mechanism. Then, when the linear drive mechanism is in motion, the gland can be directly pulled out of the installation hole. When the gland needs to be installed, it is only necessary to align the gland with the installation hole, and then the linear drive mechanism drives the first disassembly and assembly tool to The pressure cap can be pushed into the installation hole; the rotating drive mechanism drives the second disassembly and assembly tool to rotate, and at the same time drives the disassembled part that moves synchronously with the second disassembly and assembly tool to rotate, so that the corresponding disassembled part can be disassembled or installed from the installation position, such as: for the pressure cap on the hydraulic end, a hexagonal head can be set on the second disassembly and assembly tool, and the hexagonal head can be inserted into the hexagonal hole of the pressure cap to achieve the anti-rotation cooperation between the second disassembly and assembly tool and the pressure cap, and then when the rotating drive mechanism is activated, the pressure cap can be directly loosened, and at the same time, the pressure cap can be removed by loosening the pressure cap while moving the multi-purpose disassembly and assembly device away from the hydraulic end. When the pressure cap needs to be installed, it is only necessary to set the rotating drive mechanism to reverse and move the multi-purpose disassembly and assembly device and the hydraulic end closer to each other. The multi-purpose disassembly and assembly device integrates a linear drive mechanism and a rotating drive mechanism, and is provided with a first disassembly and assembly tool and a second disassembly and assembly tool, so that it can replace manual force disassembly and assembly, greatly reducing the labor intensity of the operator, while also improving the construction efficiency and reducing the labor cost.

[0015] In some embodiments of the present application, the first straight line extends horizontally, and the rotation axis of the second disassembly tool extends along the first straight line. In this way, when the disassembled parts corresponding to the first disassembly tool and the second disassembly tool need to be disassembled in the same direction, the workload of moving the multi-purpose disassembly device can be reduced, thereby reducing the labor intensity of the operator.

[0016] In some embodiments of the present application, the linear drive mechanism and the rotary drive mechanism are mounted on the mounting seat in an adjustable manner in the vertical direction. This arrangement allows the positions of the first disassembly tool and the second disassembly tool to be adjusted in the vertical direction, making it easier for the first disassembly tool and the second disassembly tool to align with the disassembled component.

[0017] In some embodiments of the present application, the mounting seat includes a base and a support seat, the support seat is provided with a first long hole whose length extends in the vertical direction, the support seat is fixed to the base by a fastener inserted into the first long hole, the size of the fastener in the vertical direction is smaller than the length of the first long hole, and the linear drive mechanism and the rotary drive mechanism are fixedly mounted on the support seat. By adjusting the relative position of the fastener and the first long hole in the vertical direction, the position of the support seat relative to the base in the vertical direction can be adjusted, and then the position of the linear drive mechanism and the rotary drive mechanism in the vertical direction can be adjusted. In this way, the position of the linear drive mechanism and the rotary drive mechanism is adjusted very conveniently, and it is stepless adjustment, which makes it easier for the first disassembly tool and the second disassembly tool to align with the disassembled part.

[0018] In some embodiments of the present application, two support seats are provided, and the linear drive mechanism and the rotation drive mechanism are fixedly mounted on separate support seats. In this arrangement, only the linear drive mechanism or the rotation drive mechanism to be used needs to be adjusted separately, and both need not be adjusted at the same time, which can reduce the difficulty and labor intensity of the operator.

[0019] In some embodiments of the present application, the fastener is a screw fixedly mounted on the base, the support seat is sleeved on the screw through the first long hole, and a clamping nut for clamping the support seat from both sides of the support seat is screwed on the screw. This method of achieving relative fixation between the support seat and the base is relatively simple and easy to implement.

[0020] In some embodiments of the present application, the screw is mounted on the base in an adjustable position along the first straight line direction. This arrangement increases the range of position adjustment of the mobile drive mechanism and the rotation drive mechanism relative to the mounting seat, so that the multi-purpose disassembly and assembly device can adapt to more working conditions.

[0021] In some embodiments of the present application, the base includes a fixed rod whose length extends along the first straight line direction, the fixed rod is provided with a second long hole extending along the first straight line direction, and the screw is inserted into the second long hole; a fastening nut is screwed onto the screw, and a stopper is provided on the screw, and the screw is clamped with the fixed rod by the fastening nut and the stopper to achieve relative fixation with the fixed rod. By adjusting the relative position of the screw in the first straight line direction and the second long hole, the position of the screw relative to the base in the first straight line direction can be adjusted. In this way, the relative position of the screw and the base is adjusted very conveniently and steplessly, so that the multi-purpose disassembly and assembly device can adapt to more working conditions.

[0022] In some embodiments of the present application, the base is provided with two fixing rods corresponding to each screw rod, the stopper and the fastening nut are located on opposite sides of the two fixing rods, and the support seat is sleeved on the rod section of the screw rod located between the two fixing rods. This arrangement makes the linear drive mechanism and the rotation drive mechanism more stable.

[0023] In some embodiments of the present application, the support seat and the screw can rotate relative to each other around the axis of the screw, and the mounting seat also includes a base, and the base is mounted on the base in an adjustable position along the vertical direction. This arrangement allows the mobile drive mechanism and the rotation drive mechanism to work after rotating at a set angle, so that the multi-purpose disassembly and assembly device can adapt to more working conditions.

[0024] In some embodiments of the present application, the base includes a fixing plate, the fixing plate is provided with a plurality of third long holes extending in the vertical direction, the third long holes are provided with positioning bolts, the base is provided with threaded holes corresponding to the third long holes and adapted to the positioning bolts, the positioning bolts are screwed into the threaded holes to press the fixing plate onto the base. By adjusting the relative position of the positioning bolts and the third long holes in the vertical direction, the position of the base relative to the base in the vertical direction can be adjusted. This method of adjusting the relative position of the base and the base is relatively simple, easy to implement, and is stepless adjustment, so that the multi-purpose disassembly and assembly device can adapt to more working conditions.

[0025] In some embodiments of the present application, the linear drive mechanism is a hydraulic cylinder, the rotational drive mechanism is a hydraulic motor, and the multi-purpose disassembly and assembly device also includes a hydraulic power unit for providing power to the hydraulic cylinder and the hydraulic motor.

[0026] In some embodiments of the present application, the multi-purpose disassembly and assembly device further comprises a mobile platform, and the mounting seat is fixedly mounted on the mobile platform. This arrangement facilitates the movement of the multi-purpose disassembly and assembly device, so that the multi-purpose disassembly and assembly device can adapt to more working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the hydraulic end in the background technology;

[0029] Figure 2 It is a three-dimensional structural schematic diagram of an embodiment of the multi-purpose disassembly and assembly device provided by the present invention;

[0030] Figure 3 1 is a schematic diagram of the planar structure of an embodiment of the multi-purpose disassembly and assembly device provided by the present invention (the oil inlet pipe and the oil outlet pipe are not shown);

[0031] Figure 4 It is a partial structural enlarged view of an embodiment of the multi-purpose disassembly and assembly device provided by the present invention;

[0032] Figure 5 It is a schematic diagram of the coordination of a fixing rod, a screw rod, a fastening nut, a supporting rod and a clamping nut in an embodiment of the multi-purpose disassembly and assembly device provided by the present invention;

[0033] Figure 6 It is a structural schematic diagram of a first disassembly and assembly tool in an embodiment of the multi-purpose disassembly and assembly device provided by the present invention;

[0034] Figure 7 It is a structural schematic diagram of the second disassembly and assembly tool in the embodiment of the multi-purpose disassembly and assembly device provided by the present invention.

[0035] In the attached figure: 101-valve box, 102-inner cavity, 103-pressure cover, 104-pressure cap, 105-threaded hole, 106-hexagonal hole; 1-mobile platform, 2-base, 3-fixed plate, 4-third long hole, 5-positioning bolt, 6-fixed rod, 7-second long hole, 8-screw, 9-fastening nut, 10-support rod, 11-first long hole, 12-clamping nut, 13-mounting plate, 14-hydraulic cylinder, 15-piston rod, 16-hydraulic motor, 1 7-motor shaft, 18-oil tank, 19-motor, 20-oil pump, 21-solenoid valve, 22-oil pipeline, 23-oil inlet pipe, 24-oil outlet pipe, 25-first disassembly and assembly tool, 26-latch, 27-first small diameter section, 28-first large diameter section, 29-second disassembly and assembly tool, 30-second small diameter section, 31-second large diameter section, 32-second mounting hole, 33-second locking hole, 34-first locking hole, 35-piston rod positioning hole, 36-motor shaft positioning hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiments of the multi-purpose disassembly and assembly device provided by the present invention:

[0041] like Figure 2 and Figure 3 As shown, the multi-purpose disassembly and assembly device includes a mobile platform 1 and a mounting base fixedly installed at the rear of the mobile platform 1. The mobile platform 1 in this embodiment is a four-wheeled motorcycle. In other embodiments, the four-wheeled motorcycle can also be replaced by other types of mobile platforms, such as a flatbed cart, a tricycle, etc.

[0042] like Figure 2 and Figure 3As shown, the mounting base includes a base 2 fixedly mounted on the mobile platform 1 and a base mounted on the base 2. The base 2 is a flat plate structure and has a rear side facing away from the front of the mobile platform 1; the base includes a fixed plate 3, as shown in FIG. Figure 4 As shown, the fixing plate 3 is provided with two third long holes 4 which penetrate the fixing plate 3 in the front-to-back direction and whose length extends in the vertical direction. The two third long holes 4 are arranged at intervals in the left-to-right direction, and two threaded holes are provided on the rear side surface of the base 2 corresponding to the two third long holes 4. The fixing plate 3 can be pressed on the rear side surface of the base 2 by the adapted positioning bolts 5 which pass through the third long holes 4 and are screwed into the corresponding threaded holes. The position of the positioning bolts 5 in the third long holes 4 can be adjusted to achieve the adjustment of the relative position of the fixing plate 3 and the base 2 in the vertical direction, thereby achieving the adjustment of the relative position of the base and the base 2 in the vertical direction.

[0043] like Figure 4 As shown, four fixing rods 6 extending in the front-to-back direction are provided on the rear side surface of the fixing plate 3 (the front-to-back direction is the first straight line direction), the four fixing rods 6 are arranged at intervals in the left-to-right direction, and each of the four fixing rods 6 is provided with a second long hole 7 penetrating the fixing rod 6 in the left-to-right direction and extending in the front-to-back direction, and the four second long holes 7 are arranged relatively in the left-to-right direction.

[0044] like Figure 4 As shown, the two fixing rods 6 on the left and the two fixing rods 6 on the right of the base are respectively equipped with a screw rod 8, and the two screw rods 8 are respectively installed in the second long holes 7 of the corresponding two fixing rods 6, and the axis of the screw rod 8 extends in the left-right direction; Figure 5 As shown, a screw head is provided at one end of the screw rod 8, and the size of the screw head in the vertical direction is larger than the size of the second long hole 7 in the vertical direction, so that the screw head cannot pass through the second long hole 7 in the left and right direction. A fastening nut 9 is also screwed on the screw rod 8, and the fastening nut 9 and the screw head are respectively located on the opposite sides of the corresponding two fixed rods 6. The screw rod 8 can clamp the corresponding two fixed rods 6 together with the fastening nut 9 and the screw head, so as to achieve relative fixation of the screw rod 8 and the fixed rod 6, and the position of the screw rod 8 in the second long hole 7 can be adjusted in the front-to-back direction to achieve adjustable position of the screw rod 8 relative to the base in the front-to-back direction. The four fixed rods 6 and the fixing plate 3 together constitute the base, the screw rod 8 constitutes the fastener, and the screw head constitutes the stopper on the screw rod 8.

[0045] like Figure 4 As shown, the mounting base also includes two support rods 10, the length of the two support rods 10 extends in the vertical direction, and the support rods 10 are provided with first long holes 11 that penetrate the support rods 10 in the left-right direction and extend in the vertical direction. The two support rods 10 are respectively sleeved on the two screw rods 8 through the corresponding first long holes 11, and the support rods 10 are sleeved on the rod section of the screw rod 8 located between the corresponding two fixing rods 6; Figure 5 As shown, two clamping nuts 12 are screwed on the screw rod 8. The two clamping nuts 12 are located on the left and right sides of the support rod 10 and can clamp the support rod 10, so as to achieve relative fixation between the support rod 10 and the screw rod 8. The support rod 10 can be adjusted relative to the base in the vertical direction by adjusting the relative position of the first long hole 11 and the screw rod 8 in the vertical direction, and can be adjusted relative to the base in the left and right directions by adjusting the relative position of the clamping nuts 12 and the screw rod 8 in the left and right directions. When the two clamping nuts 12 loosen the support rod 10, the support rod 10 can rotate around the screw rod 8.

[0046] like Figure 4 As shown, a mounting plate 13 is fixed to the upper end of each of the two support rods 10, and a through hole is provided on the mounting plate 13 that penetrates in the front-to-back direction; a hydraulic cylinder 14 is fixedly mounted on the front side surface of the left mounting plate 13, and the piston rod 15 of the hydraulic cylinder 14 in this embodiment moves in the front-to-back direction, and the piston rod 15 of the hydraulic cylinder 14 can pass through the through hole on the mounting plate 13 and extend to the rear side of the mounting plate 13; a hydraulic motor 16 is fixedly mounted on the front side surface of the right mounting plate 13, and the axis of the motor shaft 17 of the hydraulic motor 16 in this embodiment extends in the front-to-back direction, and the motor shaft 17 can pass through the through hole on the mounting plate 13 and extend to the rear side of the mounting plate 13. The mounting plate 13 and the corresponding support rod 10 together form a support seat. The hydraulic cylinder 14 constitutes a linear drive mechanism in the multi-purpose disassembly and assembly device, and the hydraulic motor 16 constitutes a rotation drive mechanism in the multi-purpose disassembly and assembly device.

[0047] like Figure 2 and Figure 3 As shown, the multi-purpose disassembly and assembly device is equipped with a hydraulic power unit for providing power to the hydraulic cylinder 14 and the hydraulic motor 16. The hydraulic power unit is fixedly installed on the base 2. The hydraulic power unit includes an oil tank 18, a motor 19, an oil pump 20 and a solenoid valve 21. The solenoid valve 21 is a two-position three-way valve (in other embodiments, the solenoid valve 21 can also be a three-position three-way valve, which can also be used). The solenoid valve 21 includes an oil inlet and two oil outlets. The oil pump 20 is connected to the oil tank 18 and the oil inlet of the solenoid valve 21 through different oil pipes 22 (the oil pipe 22 between the oil pump 20 and the oil tank 18 is not shown in the figure). The motor 19 drives the oil pump 20 to work and delivers hydraulic oil to the solenoid valve 21. The oil inlets of the hydraulic cylinder 14 and the hydraulic motor 16 are connected to the two oil outlets of the solenoid valve 21 through an oil inlet pipe 23, respectively, and the oil outlets of the hydraulic cylinder 14 and the hydraulic motor 16 are connected to the oil tank 18 through an oil outlet pipe 24. When the motor 19 and the oil pump 20 are working, the hydraulic oil is sent to the solenoid valve 21. The solenoid valve 21 can control the oil supply to the hydraulic cylinder 14 or the hydraulic motor 16, thereby driving the hydraulic cylinder 14 or the hydraulic motor 16 to move.

[0048] Take the disassembly and assembly of the gland on the hydraulic end as an example. Figure 2 As shown, the multi-purpose disassembly and assembly device is also equipped with a first disassembly and assembly tool 25 corresponding to the hydraulic cylinder 14. Figure 6 As shown, the first disassembly and assembly tool 25 is in the shape of a two-stage stepped shaft. The first disassembly and assembly tool 25 includes a first small diameter section 27 close to the hydraulic cylinder 14 and a first large diameter section 28 away from the hydraulic cylinder 14. A first mounting hole (not shown in the figure) extending backward from the front end surface thereof is provided in the first small diameter section 27. The shape and size of the first mounting hole are adapted to the shape and size of the rear end portion of the piston rod 15 of the hydraulic cylinder 14. The first disassembly and assembly tool 25 is sleeved on the rear end portion of the piston rod 15 through the first mounting hole. A piston rod positioning hole 35 penetrating in a direction perpendicular to the axial direction of the piston rod 15 is provided on the rear end portion of the piston rod 15. A first locking hole 34 corresponding to the piston rod positioning hole 35 is provided on the first small diameter section 27 of the first disassembly and assembly tool 25. The first locking hole 34 penetrates the first small diameter section 27 in the radial direction of the first small diameter section 27. After the first disassembly and assembly tool 25 is sleeved on the piston rod 15 and the piston rod positioning hole 35 is aligned with the first locking hole 34, the first disassembly and assembly tool 25 and the piston rod 15 can be locked by a latch 26. The cross section of the rear end of the piston rod 15 in this embodiment taken by a plane perpendicular to its axial direction is square, and the corresponding cross section of the first mounting hole is also square, which is convenient for aligning the piston rod positioning hole 35 and the first locking hole 34. The first large diameter section 28 of the first disassembly tool 25 is provided with an external thread that matches the thread of the threaded hole on the gland, so that the first large diameter section 28 can be screwed into the threaded hole of the gland to achieve fixed connection between the first disassembly tool 25 and the gland.

[0049] When it is necessary to remove the gland, screw the first large diameter section 28 of the first disassembly tool 25 into the threaded hole of the gland, and then fix the first small diameter section 27 of the first disassembly tool 25 to the piston rod 15 of the hydraulic cylinder 14. When the piston rod 15 of the hydraulic cylinder 14 is retracted, the gland can be pulled out of the valve box; when it is necessary to install the gland into the valve box, it is only necessary to fix the first disassembly tool 25 on the piston rod 15, and fix the gland on the first large diameter section 28 on the first disassembly tool 25, then align the gland with the position to be installed, and then when the piston rod 15 is extended, the gland can be pushed into the position to be installed.

[0050] Take the disassembly and assembly of the pressure cap on the hydraulic end as an example. Figure 2 As shown, the multi-purpose disassembly and assembly device is also equipped with a second disassembly and assembly tool 29 corresponding to the hydraulic motor 16. Figure 7As shown, the second disassembly and assembly tool 29 is in the shape of a two-stage stepped shaft. The second disassembly and assembly tool 29 includes a second small diameter section 30 close to the hydraulic motor 16 and a second large diameter section 31 away from the hydraulic motor 16. A second mounting hole 32 extending backward from the front end surface thereof is provided in the second small diameter section 30. The shape and size of the second mounting hole 32 are adapted to the shape and size of the rear end portion of the motor shaft 17 of the hydraulic motor 16. The second disassembly and assembly tool 29 is sleeved on the rear end portion of the motor shaft 17 through the second mounting hole 32. A motor shaft positioning hole 36 penetrating in a direction perpendicular to the axial direction of the motor shaft 17 is provided on the rear end portion of the motor shaft 17. A second locking hole 33 corresponding to the motor shaft positioning hole 36 is provided on the second small diameter section 30 of the second disassembly and assembly tool 29. The second locking hole 33 penetrates the second small diameter section 30 in the radial direction of the second small diameter section 30. After the second disassembly and assembly tool 29 is sleeved on the motor shaft 17 and the motor shaft positioning hole 36 is aligned with the second locking hole 33, the second disassembly and assembly tool 29 and the motor shaft 17 can be locked by a latch 26. The cross section of the rear end of the motor shaft 17 in this embodiment is square when cut by a plane perpendicular to its axial direction, and the corresponding cross section of the second mounting hole 32 is also square, which is convenient for aligning the motor shaft positioning hole 36 and the second locking hole 33. The second large diameter section 31 of the second disassembly tool 29 is hexagonal, so that the second large diameter section 31 can be inserted into the hexagonal hole of the pressing cap, thereby realizing the anti-rotation fit between the second disassembly tool 29 and the pressing cap.

[0051] When it is necessary to remove the pressing cap, insert the second large diameter section 31 of the second disassembly and assembly tool 29 into the hexagonal hole of the pressing cap, and then start the hydraulic motor 16. When the motor shaft 17 rotates, it can drive the second disassembly and assembly tool 29 to rotate together, and then drive the pressing cap to rotate, so that the pressing cap can be loosened. In this process, the screw rod 8 and the fixing rod 6 corresponding to the hydraulic motor 16 can be released, so that the motor shaft 17 rotates while moving the hydraulic motor 16 away from the hydraulic end, thereby gradually removing the pressing cap; when it is necessary to install the pressing cap, it is only necessary to rotate the hydraulic motor 16 in the opposite direction, and rotate the motor shaft 17 while moving the hydraulic motor 16 toward the hydraulic end.

[0052] In the above embodiment, the hydraulic cylinder cooperates with the first disassembly tool to disassemble the gland in the hydraulic end. In other embodiments, the hydraulic cylinder cooperates with the first disassembly tool to disassemble other disassembled parts, and it is only necessary to set the first disassembly tool with a specific structural shape according to the specific disassembled parts, such as: the plunger in the hydraulic end can be disassembled, because the plunger can be removed by just pushing it. In this case, the first large diameter section may not be provided with an external thread, and even the first large diameter section may not be provided. The rear end face of the first small diameter section can be directly used to push the plunger, which can also be used; in other embodiments, such as: the disassembled part is interference-fitted in a groove, and a pull ring is provided on the disassembled part, then a hook can be provided on the first disassembly tool, and the hook can hook the pull ring, and the disassembled part can be pulled out when the piston rod is retracted.

[0053] In the above embodiment, the hydraulic motor is used to disassemble the pressure cap in conjunction with the second disassembly tool. In other embodiments, the hydraulic motor can also be used to disassemble other disassembled parts in conjunction with the second disassembly tool. It is only necessary to change the specific structure of the second disassembly tool according to the specific disassembled parts so that the second disassembly tool and the disassembled parts can be stopped from rotating. If a square hole is provided in the disassembled part, the second large diameter section of the second disassembly tool can be set to a square shape. Alternatively, a socket is provided on the second large diameter section of the second disassembly tool. The shape and size of the socket are adapted to the shape and size of the end of the disassembled part, and when the end of the disassembled part is inserted into the socket, the second disassembly tool and the disassembled part can be stopped from rotating. The same can be used.

[0054] In the above embodiment, the linear drive mechanism is a hydraulic cylinder. In other embodiments, the linear drive mechanism can also be an electric push rod, a motor supporting a lead screw nut mechanism, a cylinder, etc., all of which can be used.

[0055] In the above embodiment, the rotation drive mechanism is a hydraulic motor. In other embodiments, the rotation drive mechanism can also be an electric motor, which can also be used.

[0056] In the above embodiment, the piston rod of the hydraulic cylinder moves in the front-to-back direction, and the axis of the motor shaft of the hydraulic motor also extends in the front-to-back direction, that is, the movement direction of the piston rod and the extension direction of the rotation axis of the motor shaft are the same. In other embodiments, the movement direction of the piston rod and the extension direction of the rotation axis of the motor shaft may also be different and can also be used. For example, if the piston rod moves in the front-to-back direction, the rotation axis of the motor shaft may extend in the left-right direction.

[0057] In the above embodiment, the support seat includes a support rod, a first long hole is provided on the support rod, a screw is fixed on the fixing rod, and the position of the support seat relative to the base in the vertical direction can be adjusted by adjusting the relative position of the first long hole and the screw in the vertical direction. In other embodiments, the support base can also be adjusted in the vertical direction relative to the base in other ways. For example, a vertical plate can be set on the upper side of a fixed rod, and more than three vertical plate through holes penetrating in the left and right directions can be set on the vertical plate, and each vertical plate through hole is arranged at intervals in the vertical direction, and the spacing distance between adjacent vertical plate through holes is the same; two support rod through holes penetrating in the left and right directions are set on the support rod, and the two support rod through holes are arranged at intervals in the vertical direction, and the spacing distance between the two support rod through holes is the same as the spacing distance between two adjacent vertical plate through holes. In this way, the two support rod through holes can be aligned with the two vertical plate through holes and two matching bolts and nuts can be used to fix the support rod on the vertical plate. The support rod through holes can also be aligned with different vertical plate through holes to achieve the adjustable position of the support rod relative to the base in the vertical direction, thereby achieving the adjustable position of the support base relative to the base in the vertical direction; of course, the support rod can also be set so that the position of the support rod relative to the base in the vertical direction is not adjustable, which can also be used.

[0058] In the above-described embodiment, the hydraulic cylinder and the hydraulic motor are respectively installed on a separate supporting base. In other embodiments, the hydraulic cylinder and the hydraulic motor can also be installed on the same supporting base, that is, one supporting base is set, which can be used equally.

[0059] In the above embodiment, the two fixing rods corresponding to the same screw rod are provided with a second long hole, and the screw rod position relative to the base in the front-to-back direction can be adjusted by adjusting the relative position of the screw rod and the second long hole in the front-to-back direction. In other embodiments, the screw rod position relative to the base in the front-to-back direction can also be adjusted by other means, such as providing a plurality of threaded blind holes extending downward from the upper side surface on the two fixing rods, each threaded blind hole being arranged at intervals in the front-to-back direction, and providing a screw rod through hole corresponding to the two fixing rods on the screw rod, and then the screw rod can be pressed onto the two fixing rods by aligning the screw rod through hole with the threaded blind hole and using matching bolts, and the position of the screw rod can be adjusted in the front-to-back direction by aligning the screw rod through hole with different threaded blind holes. Of course, the screw rod can also be directly fixed on the two fixing rods without being adjustable in position, which can also be used.

[0060] In the above embodiment, two fixing rods are provided for each screw rod, and the fastening nut and the screw head are located on opposite sides of the two fixing rods, and the screw rod is fixed to the fixing rod by clamping the opposite sides of the two fixing rods. In other embodiments, only one fixing rod may be provided for each screw rod, and the fastening nut and the screw head may clamp the corresponding fixing rod to fix the screw rod to the fixing rod, which can also be used.

[0061] In the above embodiment, when the two clamping nuts loosen the support rod, the support rod can rotate around the screw rod, so that the linear drive mechanism and the rotation drive mechanism can rotate relative to the base. The base includes a fixed plate, and a third long hole is provided on the fixed plate. By adjusting the relative position of the third long hole and the positioning bolt in the vertical direction, the fixed plate can be adjusted relative to the base in the vertical direction, thereby achieving the adjustable position of the base relative to the base in the vertical direction. In other embodiments, the adjustable position of the fixed plate relative to the base in the vertical direction can also be achieved in other ways, such as two rows of threaded holes can be provided on the rear side of the base, the two rows of threaded holes are arranged at intervals in the left and right directions, and the threaded holes in each row are arranged at intervals in the vertical direction, and a fixed plate through hole is provided on the fixed plate corresponding to each of the two rows of threaded holes. After the fixed plate through hole is aligned with the threaded hole, the fixed plate can be pressed against the rear side of the base by the matching bolt. The fixed plate can also be adjusted relative to the base in the vertical direction by aligning the fixed plate through holes with different threaded holes. Of course, the fixed plate can also be set to be directly fixed on the base, and its relative position with the base cannot be adjusted in the vertical direction. In this case, the support rod and the screw rod can also be set not to rotate relative to each other, and it can also be used; in some other embodiments, the screw rod can also be set to be able to rotate relative to the fixed rod, and the linear drive mechanism and the rotation drive mechanism can also be able to rotate relative to the base.

[0062] In the above embodiment, two third long holes are provided on the fixing plate. In other embodiments, three, four or more third long holes can also be provided on the fixing plate, which can also be used.

[0063] In the above-mentioned embodiment, the multi-purpose disassembly and assembly device is provided with a mobile platform. In other embodiments, the multi-purpose disassembly and assembly device may not be provided with a mobile platform and may be used equally.

[0064] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0065] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope described in the claims.

Claims

1. A multi-purpose disassembly and assembly device, used for disassembling and assembling the pressure cap and pressure cover of the hydraulic end of a fracturing vehicle, characterized in that: include: Mounting seat; A linear drive mechanism, mounted on the mounting seat; A rotation driving mechanism is mounted on the mounting seat; A first disassembly and assembly tool, wherein the linear drive mechanism can drive the first disassembly and assembly tool to move along a first linear direction, and the first disassembly and assembly tool is used to cooperate with the pressing cap to drive the corresponding pressing cap to move synchronously; A second disassembly and assembly tool, wherein the rotation drive mechanism can drive the second disassembly and assembly tool to rotate, and the second disassembly and assembly tool is used to cooperate with the gland to drive the corresponding gland to move synchronously; Wherein, the first disassembly and assembly tool comprises a first large diameter section, and the first large diameter section is provided with an external thread adapted to the thread of the threaded hole on the gland; The second disassembly and assembly tool comprises a second large diameter section, the second large diameter section is hexagonal, and the second large diameter section is suitable for being inserted and fitted into the hexagonal hole of the pressing cap.

2. The multi-purpose disassembly and assembly device according to claim 1, characterized in that: The first straight line direction extends horizontally, and the rotation axis of the second disassembly tool extends along the first straight line direction.

3. The multi-purpose disassembly and assembly device according to claim 2, characterized in that: The linear drive mechanism and the rotary drive mechanism are mounted on the mounting seat in a manner that their positions can be adjusted in the vertical direction.

4. The multi-purpose disassembly and assembly device according to claim 3, characterized in that: The mounting seat includes a base and a support seat, the support seat is provided with a first long hole whose length extends in the vertical direction, the support seat is fixed to the base by a fastener installed in the first long hole, the dimension of the fastener in the vertical direction is smaller than the length dimension of the first long hole, and the linear drive mechanism and the rotation drive mechanism are fixedly mounted on the support seat.

5. The multi-purpose disassembly and assembly device according to claim 4, characterized in that: The support seats are provided with two, and the linear drive mechanism and the rotation drive mechanism are respectively fixedly mounted on separate support seats.

6. The multi-purpose disassembly and assembly device according to claim 4 or 5, characterized in that: The fastener is a screw rod fixedly mounted on the base, the support seat is sleeved on the screw rod through the first long hole, and a clamping nut for clamping the support seat from both sides of the support seat is screwed onto the screw rod.

7. The multi-purpose disassembly and assembly device according to claim 6, characterized in that: The screw rod is mounted on the base in an adjustable position along the first straight line direction.

8. The multi-purpose disassembly and assembly device according to claim 7, characterized in that: The base includes a fixing rod whose length extends along the first straight line direction, the fixing rod is provided with a second long hole whose length extends along the first straight line direction, and the screw rod is inserted into the second long hole; a fastening nut is screwed on the screw rod, and a stop portion is provided on the screw rod, and the screw rod is clamped by the fastening nut and the stop portion to achieve relative fixation with the fixing rod.

9. The multi-purpose disassembly and assembly device according to claim 8, characterized in that: The base is provided with two fixing rods corresponding to each of the screw rods, and the stopper and the fastening nut are located on opposite sides of the two fixing rods; the support seat is sleeved on the rod section of the screw rod located between the two fixing rods.

10. The multi-purpose disassembly and assembly device according to claim 6, characterized in that: The support seat and the screw rod can rotate relative to each other around the axis of the screw rod. The mounting seat also includes a base, and the base is mounted on the base in an adjustable position along the vertical direction.

11. The multi-purpose disassembly and assembly device according to claim 10, characterized in that: The base includes a fixing plate, which is provided with a plurality of third long holes extending along the vertical direction, and positioning bolts are arranged in the third long holes. Threaded holes adapted to the positioning bolts are provided on the base corresponding to the third long holes, and the positioning bolts are screwed into the threaded holes to press the fixing plate onto the base.

12. The multi-purpose disassembly and assembly device according to any one of claims 1 to 5, characterized in that: The linear drive mechanism is a hydraulic cylinder, the rotary drive mechanism is a hydraulic motor, and the multi-purpose disassembly and assembly device also includes a hydraulic power unit for providing power to the hydraulic cylinder and the hydraulic motor.

13. The multi-purpose disassembly and assembly device according to any one of claims 1 to 5, characterized in that: The multi-purpose disassembly and assembly device also includes a mobile platform, and the mounting seat is fixedly mounted on the mobile platform.

Images