Plunger pump valve seat pulling-out device of fracturing truck

Abstract

The utility model relates to the technical field of fracturing truck plunger pump valve seats, in particular to a fracturing truck plunger pump valve seat pull-out device which comprises a mounting column, a motor is fixedly embedded in the mounting column, an output shaft of the motor is fixedly connected with a first gear, the outer surface of the first gear is meshed with a second gear, and the second gear is fixedly connected with an output shaft of the motor. A connecting rod is fixedly connected to the bottom face of each second gear, the mounting column is arranged at the position of a valve seat, the first gear is driven by the motor to rotate so that the second gears can rotate, and the first bevel gears can drive the four second bevel gears to rotate synchronously through connection of the second gears, the connecting rod and the first bevel gears. The second bevel gear can drive the corresponding threaded rod to rotate, the threaded rod drives the corresponding sliding block and the clamping piece to move, the clamping piece makes contact with the inner wall and the bottom face of the valve seat, centering inner supporting of the valve seat is achieved, the device is suitable for valve seats of different sizes, stability when the valve seat is pulled out can be guaranteed, and the service life of the valve seat is prolonged. And the eccentric phenomenon is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fracturing truck plunger pump valve seat, in particular to a fracturing truck plunger pump valve seat pulling device. BACKGROUND

[0002] The fracturing truck is a special vehicle for injecting high-pressure and large-displacement fracturing fluid into the well to press the formation and squeeze the proppant into the fracture, which is mainly used for various fracturing operations of oil, gas and water wells, and can also be used for hydraulic sand blasting, high-pressure hydraulic coal mining, ship high-pressure hydraulic rust removal and other operations. The equipment can perform single machine and online operation, and is mainly composed of a truck chassis, a truck platform engine, a truck platform transmission box, a fracturing pump, a manifold system, a lubrication system, a circuit system, an air path system and a hydraulic system.

[0003] When injecting proppant into the well, the high-pressure plunger pump bears high pressure, and the suction valve and the discharge valve are severely worn by the proppant. The suction valve and the discharge valve are composed of a valve seat and a valve body. Usually, the plunger pump needs to be replaced after using 2-3 wells, at which time the valve seat needs to be pulled out.

[0004] For the above-mentioned related technology, the inventors found that the following defects exist: in the prior art, when pulling out the valve seat, the tool for pulling out the valve seat cannot be applied to different models of valve seats, and when pulling out the valve seat, the centering force and the clamping force are insufficient, which leads to eccentricity when pulling out the valve seat, resulting in deviation of the acting force, affecting the pulling-out efficiency, and when the acting force deviates from the center point, the rod of the pulling-out device is easily damaged. In order to solve the problems in the prior art that eccentricity occurs when pulling out the valve seat, the acting force cannot be concentrated at the center point, the pulling-out efficiency is affected, and when the acting force deviates from the center point, the rod of the pulling-out device is easily damaged, the present application sets the bevel gear one, the bevel gear two and the threaded rod and other components, so that the rotation of the bevel gear one drives the corresponding threaded rods to rotate, and then the sliding block can drive the clamping piece to contact with the valve seat, realizing the centering and supporting effect of the valve seat, which is suitable for valve seats of different sizes, can ensure the stability of pulling out the valve seat, and prevent eccentricity. CONTENT OF THE UTILITY MODEL

[0005] In order to ensure that the valve seat is centered and supported when pulling out the valve seat, ensure that the acting force is always at the same position, ensure the stability of the valve seat when pulling out, and prevent eccentricity, the present application provides a fracturing truck plunger pump valve seat pulling device.

[0006] The application provides a fracturing truck plunger pump valve seat pulling device, which adopts the following technical scheme: an installation column is internally fixedly embedded with a motor, the output shaft of the motor is fixedly connected with a gear one, the outer surface of the gear one is engaged with a gear two, the bottom surface of the gear two is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a bevel gear one, the outer surface of the bevel gear one is engaged with equidistantly arranged bevel gears two, one side of each bevel gear two away from each other is fixedly connected with a threaded rod, the outer surface of each threaded rod is threadedly connected with a sliding block and a clamping piece, and the outer surface of each sliding block is fixedly connected with the inner wall of the corresponding clamping piece.

[0007] Optionally, the outer surface of the connecting rod is rotationally connected with the inner wall of the installation column, and the outer surface of each threaded rod is rotationally connected with the inner wall of the installation column.

[0008] Optionally, the outer surface of the installation column is provided with equidistantly arranged sliding grooves, and the inner wall of each sliding groove is slidingly connected with the outer surface of the corresponding sliding block.

[0009] Optionally, the upper surface of the installation column is fixedly connected with a guide rod, and the outer surface of the guide rod is fixedly connected with a fixed circular block.

[0010] Optionally, the outer surface of the guide rod is slidingly connected with an L-shaped rod and a guide cylinder, and the bottom end of the L-shaped rod is fixedly connected with a limiting plate.

[0011] Optionally, the upper surface of the guide cylinder is fixedly connected with an impact block, the outer surface of the guide cylinder is fixedly connected with a fixed block, and the outer surface of the fixed block is rotationally connected with a rotating piece.

[0012] Optionally, the right side surface of the rotating piece is fixedly connected with a lifting rod, and the right end of the lifting rod is fixedly connected with a handle.

[0013] In summary, the application has the following beneficial technical effects:

[0014] 1. The utility model discloses a gear one, gear two, bevel gear one, bevel gear two, threaded rod, sliding block, clamping piece etc. are set up, and the installation column is placed in the valve seat position, and the gear one is rotated through the motor, and then the gear two is rotated, and the connection of gear two, connecting rod and bevel gear one makes that bevel gear one can drive four bevel gears two synchronous rotation, and then the bevel gear two can drive corresponding threaded rod rotation, and the threaded rod drives corresponding sliding block and clamping piece to move, and the inner wall and bottom surface of the clamping piece and valve seat are contacted, realize the centring of valve seat and support to the inside, and be applicable to different size valve seat, can guarantee the stability when pulling out valve seat, prevent eccentric phenomenon.

[0015] 2. The utility model discloses a fixed round block, pull rod, rotating part, fixed block, guide cylinder, impact block and other components are set up, through setting up L type rod and guide cylinder on the surface of guide rod, set up the limiting board at the bottom of L type rod, realize the support of L type rod, when the clamping piece is clamped with the valve seat, the operator pulls the handle, makes pull rod can produce the inclination between the connection of rotating part and fixed block, the handle can drive guide cylinder to slide up and down at this moment, and then make guide cylinder drive impact block to rise, until the upper surface of impact block and the bottom surface of fixed round block contact, make fixed round block can drive guide rod to rise through the impact force between impact block and fixed round block, and then make guide rod fixed through the installation column, make clamping piece can drive valve seat to rise, repeatedly pull the handle, make valve seat can be disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole three-dimensional structure schematic diagram in the embodiment of the application;

[0017] Figure 2 It is the structure schematic diagram of the main view in the embodiment of the application;

[0018] Figure 3 It is the structure schematic diagram of the connecting relationship between limiting cylinder and impact block in the embodiment of the application;

[0019] Figure 4 It is the structure schematic diagram of the inside of installation column in the embodiment of the application.

[0020] The figure mark: 1, installation column;2, motor;3, gear one;4, gear two;5, connecting rod;6, bevel gear one;7, bevel gear two;8, threaded rod;9, sliding block;10, clamping piece;11, sliding groove;12, guide rod;13, L type rod;14, limiting board;15, fixed round block;16, pull rod;17, handle;18, rotating part;19, fixed block;20, guide cylinder;21, impact block. DETAILED DESCRIPTION

[0021] The following combines the Figures 1-4 The application is further explained.

[0022] The embodiment of the application discloses a fracturing truck plunger pump valve seat pull-out device. Figure 1 、 Figure 2 、 Figure 3 、 Figure 4As shown, including the installation column 1, the inside of the installation column 1 is fixedly embedded with the motor 2, the output shaft of the motor 2 is fixedly connected with the gear one 3, the outer surface of the gear one 3 is engaged with the gear two 4, the motor 2 is installed in the inside of the installation column 1, the positioning and installation effect of the motor 2 is realized, the motor 2 is a small motor, can provide power for the gear one 3 fixed on the output shaft, so that the gear one 3 can rotate, the gear two 4 is arranged at the side of the gear one 3, and is engaged, the rotation of the gear one 3 can make the gear two 4 rotate.

[0023] In the embodiment, the upper surface of the installation column 1 is fixedly connected with the guide rod 12, the outer surface of the guide rod 12 is fixedly connected with the fixed circular block 15, the guide rod 12 is installed on the upper surface of the installation column 1 and is fixedly connected, the guide rod 12 moves, so that the installation column 1 can move along with it, the fixed circular block 15 is installed on the surface of the guide rod 12 and is fixedly connected, and the positioning and installation effect of the fixed circular block 15 is realized.

[0024] Please refer to Figure 3 The outer surface of the guide rod 12 is slidably connected with the L-shaped rod 13 and the guide cylinder 20, the bottom end of the L-shaped rod 13 is fixedly connected with the limiting plate 14, the L-shaped rod 13 and the guide cylinder 20 are installed on the surface of the guide rod 12 and are slidably connected, the limiting plate 14 is installed at the bottom end of the L-shaped rod 13, when the clamping piece 10 supports and limits the valve seat from inside, the limiting plate 14 can contact the surrounding position of the valve seat installation position and provide support force for the L-shaped rod 13.

[0025] In a preferred embodiment, the upper surface of the guide cylinder 20 is fixedly connected with the impact block 21, the outer surface of the guide cylinder 20 is fixedly connected with the fixed block 19, and the outer surface of the fixed block 19 is rotatably connected with the rotating piece 18, the impact block 21 is installed on the upper surface of the guide cylinder 20 and is fixedly connected, the positioning and installation effect of the impact block 21 is realized, the impact block 21 can be lifted and lowered through the lifting of the guide cylinder 20, the fixed block 19 is installed on the outer surface of the guide cylinder 20 and is fixedly connected, the installation of the fixed block 19 is realized, the rotating piece 18 is installed on the surface of the fixed block 19 and is rotatably connected, and the limiting of the rotating piece 18 is realized through the fixed block 19.

[0026] In this embodiment, the right side of the rotating piece 18 is fixedly connected with the pull rod 16, the right end of the pull rod 16 is fixedly connected with the handle 17, the pull rod 16 is installed on the right side of the rotating piece 18 and is fixedly connected, and the handle 17 is fixed at the right end of the pull rod 16. When the operator pulls the handle 17, the handle 17 can make the fixed block 19, the guide cylinder 20 and the impact block 21 rise through the pull rod 16 and the rotating piece 18, and the impact block 21 can contact the bottom surface of the fixed circular block 15. Through repeated impacts, the valve seat can be pulled out.

[0027] As shown in Figure 4 , the bottom surface of the gear two 4 is fixedly connected with the connecting rod 5, the bottom end of the connecting rod 5 is fixedly connected with the bevel gear one 6, the outer surface of the bevel gear one 6 is engaged with the equidistantly arranged bevel gear two 7, the connecting rod 5 is installed on the bottom surface of the gear two 4 and is fixedly connected, the bevel gear one 6 is installed at the bottom end of the connecting rod 5 and is also fixedly connected, the connecting rod 5 can rotate when the gear two 4 rotates, the bevel gear one 6 can rotate when the connecting rod 5 rotates, four bevel gear two 7 are arranged on the side of the bevel gear one 6, corresponding to four directions, and the bevel gear two 7 is connected with the bevel gear one 6 and is engaged. The rotation of the bevel gear one 6 can make the four bevel gear two 7 rotate synchronously and in the same direction.

[0028] In this embodiment, the side away from each other of each bevel gear two 7 is fixedly connected with the threaded rod 8, the outer surface of each threaded rod 8 is threadedly connected with the sliding block 9 and the clamping piece 10, and the outer surface of each sliding block 9 is fixedly connected with the inner wall of the corresponding clamping piece 10. The threaded rod 8 is installed on the side away from each other of the corresponding bevel gear two 7 and is fixedly connected, the corresponding threaded rod 8 can rotate when the bevel gear two 7 rotates, the sliding block 9 and the clamping piece 10 are installed on the surface of the corresponding threaded rod 8 and are threadedly connected, the sliding block 9 and the clamping piece 10 can move relative to each other through the rotation of the threaded rod 8, the four-direction clamping of the valve seat is realized, the mounting column 1 can be positioned at the middle position of the valve seat, and the clamping piece 10 can internally support the valve seats of different sizes.

[0029] Please refer to Figure 4 , the outer surface of the mounting column 1 is provided with equidistantly arranged sliding grooves 11, the inner wall of each sliding groove 11 is slidably connected with the outer surface of the corresponding sliding block 9, the sliding grooves 11 are arranged on the surface of the mounting column 1, there are four sliding grooves 11, the positioning of the sliding grooves 11 is realized, the sliding block 9 is arranged on the inner wall of the corresponding sliding groove 11 and is slidably connected, and the sliding block 9 is limited through the contour of the sliding groove 11.

[0030] In a preferred embodiment, the outer surface of the connecting rod 5 is rotationally connected with the inner wall of the mounting column 1, and the outer surface of each threaded rod 8 is rotationally connected with the inner wall of the mounting column 1. The connecting rod 5 and the inner wall of the mounting column 1 are rotationally connected, which limits the connecting rod 5, thereby ensuring that the bevel gear 6 can stably rotate. The threaded rod 8 and the inner wall of the mounting column 1 are also rotationally connected, and the four threaded rods 8 are limited by the mounting column 1, thereby ensuring that the threaded rod 8 can stably transmit power.

[0031] The implementation principle of the fracturing truck plunger pump valve seat pulling device in the embodiment of the application is as follows: moving the guide rod 12 to move the mounting column 1 to the valve seat position, starting the motor 2 to drive the gear 3 to rotate, thereby driving the gear 2 to rotate, and through the connection of the gear 2, the connecting rod 5 and the bevel gear 1, the bevel gear 6 can drive the four bevel gears 7 to synchronously rotate, thereby driving the corresponding threaded rods 8 to rotate, so that the threaded rods 8 drive the corresponding sliding blocks 9 and clamping pieces 10 to move, and through the contact between the clamping pieces 10 and the inner wall and bottom surface of the valve seat, the valve seat is centered and supported from inside. At this time, the limiting plate 14 is in contact with the plane around the valve seat, the operator can step on the limiting plate 14 to limit the L-shaped rod 13, the operator manually holds the guide rod 12, at this time, the other hand pulls the handle 17, so that the lifting rod 16 can be inclined through the connection between the rotating part 18 and the fixed block 19, at this time, the handle 17 can drive the guide cylinder 20 to slide up and down, thereby driving the guide cylinder 20 to drive the impact block 21 to rise, until the upper surface of the impact block 21 is in contact with the bottom surface of the fixed circular block 15, through the impact force generated between the impact block 21 and the fixed circular block 15, the fixed circular block 15 can drive the guide rod 12 and the mounting column 1 to rise, so that the clamping piece 10 drives the valve seat to rise, and repeatedly pulling the handle 17 can pull out the valve seat.

[0032] The above are preferred embodiments of the application, but do not limit the protection scope of the application, therefore: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A fracturing truck plunger pump valve seat puller device comprising a mounting post (1), characterized in that: The inside of the mounting column (1) is fixedly embedded with a motor (2), the output shaft of the motor (2) is fixedly connected with a gear one (3), the outer surface of the gear one (3) is engaged with a gear two (4), the bottom surface of the gear two (4) is fixedly connected with a connecting rod (5), the bottom end of the connecting rod (5) is fixedly connected with a bevel gear one (6), the outer surface of the bevel gear one (6) is engaged with equidistantly arranged bevel gear two (7), the surface away from each other of each bevel gear two (7) is fixedly connected with a threaded rod (8), the outer surface of each threaded rod (8) is threadedly connected with a sliding block (9) and a clamping piece (10), the outer surface of each sliding block (9) is fixedly connected with the inner wall of the corresponding clamping piece (10).

2. A fracturing truck plunger pump valve seat puller as defined in claim 1, wherein: The outer surface of the connecting rod (5) is rotatably connected with the inner wall of the mounting column (1), and the outer surface of each threaded rod (8) is rotatably connected with the inner wall of the mounting column (1).

3. A fracturing truck plunger pump valve seat puller as defined in claim 1, wherein: The outer surface of the connecting rod (5) is rotatably connected with the inner wall of the mounting column (1), and the outer surface of each threaded rod (8) is rotatably connected with the inner wall of the mounting column (1).

4. A fracturing truck plunger pump valve seat puller as defined in claim 1, wherein: The outer surface of the connecting rod (5) is rotatably connected with the inner wall of the mounting column (1), and the outer surface of each threaded rod (8) is rotatably connected with the inner wall of the mounting column (1).

5. A fracturing truck plunger pump valve seat puller as defined in claim 4, wherein: The outer surface of the connecting rod (5) is rotatably connected with the inner wall of the mounting column (1), and the outer surface of each threaded rod (8) is rotatably connected with the inner wall of the mounting column (1).

6. A fracturing truck plunger pump valve seat puller as defined in claim 5, wherein: The outer surface of the connecting rod (5) is rotatably connected with the inner wall of the mounting column (1), and the outer surface of each threaded rod (8) is rotatably connected with the inner wall of the mounting column (1).

7. A fracturing truck plunger pump valve seat puller as defined in claim 6, wherein: The right side of the rotating part (18) is fixedly connected with a pull rod (16), and the right end of the pull rod (16) is fixedly connected with a handle (17).

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