CN209062980U - Maintenance device for plunger pump - Google Patents

Abstract

The utility model discloses an overhaul device of plunger pump belongs to production facility and overhauls technical field. The device comprises a screw rod component (1), a traction component (2) and a fixed frame (3), wherein the screw rod component (1) is connected with the fixed frame (3) in a thread mode, and the traction component (2) is connected to one end of the screw rod component (1); when the spring seat is detached, the fixed frame (3) is connected with the plunger pump body, and the screw rod assembly (1) is connected to the spring seat, and then the spring seat can be driven to move by rotating the screw rod assembly (1); when the valve seat is detached, the fixing frame (3) of the device is connected with the plunger pump body, and after the screw assembly (1) is connected to the valve seat, the valve seat can be driven to move by rotating the screw assembly (1). The dismounting process is simple in operation, time-saving and labor-saving, the plunger pump is prevented from being damaged in the dismounting process, and the use of the plunger pump cannot be influenced.

Description

Maintenance device for plunger pump

technical field

The utility model relates to the technical field of production equipment maintenance, in particular to a maintenance device for a plunger pump.

Background technique

Plunger pumps are commonly used equipment in industrial production. For example, oilfields developed by water injection often use reciprocating plunger pumps to pressurize oilfield sewage into the formation to increase formation pressure to maintain oil well production. There are valve seats and spring seats in the pump head cylinder of the plunger pump. When overhauling the plunger pump, the valve seat and the spring seat need to be removed. The spring seat is located inside the pump head, and the outer wall of the spring seat and the inner wall of the cylinder are connected There is a clearance fit between them, and there is a sealing ring on the outer wall of the spring seat, which is inconvenient for disassembly and assembly; since the valve seat is installed in the plunger pump head through the sealing gasket, the fragments of the sealing gasket are often stuck between the valve seat and the inner wall of the liquid cylinder of the pump head. , the valve seat is not easy to remove, therefore, it is necessary to use tools to remove the spring seat and valve seat of the plunger pump.

In current production, a round tube is used to insert the liquid cylinder from the outside, resting on the inner end face of the spring seat, and the spring seat is disassembled by hitting the round tube with a sledgehammer; usually a crowbar is used to disassemble the valve seat.

This disassembly method not only takes a long time for construction, but also has high labor intensity for employees, and it is also easy to scratch the plunger pump, which causes the sealing effect of the plunger pump to deteriorate and reduces the pump efficiency.

Utility model content

The embodiment of the utility model provides an overhaul device for a plunger pump, which can solve the problem that the commonly used overhaul method for plunger pumps not only takes a long time for construction, but also has high labor intensity for employees, and also easily scratches the plunger pump, causing the sealing of the plunger pump. The effect becomes worse and the problem of reducing the pump efficiency. The technical solution is as follows:

An overhaul device for a plunger pump is provided. The plunger pump to be overhauled includes a spring seat, a valve seat and a plunger pump body. The device includes: a screw assembly 1, a traction assembly 2 and a fixing frame 3:

The screw assembly 1 includes a screw 11, a connecting head 12 and a disc 13 sequentially connected to the screw 11 from left to right, and the disc 13 is used to connect the spring seat;

The right end of the pulling assembly 2 is connected to the connecting head 12, and the left end of the pulling assembly 2 is used to connect the valve seat;

The screw 11 is connected in the threaded hole of the fixing frame 3 by means of threads, the fixing frame 3 is located on the right side of the disc 13 on the screw 11, and the fixing frame 3 is used to connect the plunger pump body;

The screw 11 is used to drive the spring seat or the valve seat to move through relative rotation with the fixing frame 3 .

In a possible design, the disc 13 is detachably connected to the screw 11;

The right end of the connector 12 is detachably connected to the screw 11 .

In a possible design, the disc 13 includes a central disc 131 and two circular platforms 132 connected on the left and right sides of the central disc 131;

The two circular platforms 132 are used to connect the spring seat.

In a possible design, the screw 11 includes a first screw part 111 , a second screw part 112 and a third screw part 113 arranged from left to right with diameters increasing in sequence;

The disc 13 is sleeved on the second screw portion 112 and locked on the left end face of the first screw portion 111;

The first screw part 111 and the third screw part 113 are both provided with external threads, the external threads on the first screw part 111 are used to connect the fixing frame 3 , and the external threads on the third screw part 113 are used for The connecting nut 14 is used for locking the disc 13 .

In a possible design, the right end of the connecting head 12 is connected to the screw 11 by means of threads.

In a possible design, the side of the connector 12 is provided with a first spanner slot 121 .

In a possible design, the pulling assembly 2 includes a pulling head 21 and a coupling 22;

The coupling 22 includes a cylinder 221 and a bottom plate 222, and the bottom plate 222 is provided with a first through hole 223;

The pulling head 21 is cylindrical, the right end of the pulling head 21 is detachably connected in the cylinder 221 of the coupling 22, the left end of the pulling head 21 is used for connecting the valve seat, and the side of the pulling head 21 is provided with The second wrench slot 211;

The left end of the connecting head 12 is connected to the right end of the pulling head 21 through the first through hole 223 .

In a possible design, a polygonal groove 212 is provided on the end face of the right end of the pulling head 21;

The left end of the connector 12 is matched with the polygonal groove 212 .

In a possible design, the fixing frame 3 has a plurality of second through holes 31;

The plurality of second through holes 31 are used for connecting the fixing frame 3 and the plunger pump body.

In a possible design, the screw assembly 1 further includes a handle 15;

The handle 15 is connected to the right side of the fixing frame 3 on the screw 11 .

The beneficial effects brought by the technical solutions provided by the embodiments of the present utility model are:

The screw assembly 1 is connected to the fixing frame 3 by means of threads, and the traction assembly 2 is connected to one end of the screw assembly 1; when the spring seat is removed from the plunger pump body, the fixing frame 3 is connected to the plunger pump After the main body is connected, and the disc 13 is connected to the spring seat, the screw 11 can be rotated to drive the disc 13 to move relative to the fixing frame 3, thereby driving the spring seat to move; When disassembling the valve seat, after connecting the fixing frame 3 with the plunger pump body and connecting the pulling assembly 2 to the valve seat, the screw 11 can be rotated to drive the pulling assembly 2 relative to the fixing frame 3 move, thereby driving the valve seat to move. The above disassembly process is simple to operate, saves time and effort, avoids damage to the plunger pump during the disassembly process, and does not affect the use of the plunger pump.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a maintenance device for a plunger pump provided by an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a maintenance device for a plunger pump provided by an embodiment of the present invention. 1, the plunger pump to be repaired includes a spring seat, a valve seat and a plunger pump body; the device includes: a screw assembly 1, a traction assembly 2 and a fixing frame 3; the screw assembly 1 includes a screw 11 and from left to right The connecting head 12 and the disc 13 connected to the screw 11 in turn, the disc 13 is used to connect the spring seat; the right end of the pulling assembly 2 is connected to the connecting head 12, and the left end of the pulling assembly 2 is used to connect the valve The screw 11 is connected in the threaded hole of the fixing frame 3 by means of threads, the fixing frame 3 is located on the right side of the disc 13 on the screw 11, and the fixing frame 3 is used to connect the plunger pump body; The screw 11 is used to drive the spring seat or the valve seat to move through relative rotation with the fixing frame 3 .

When removing the spring seat from the plunger pump body, after connecting the fixing frame 3 of the device to the plunger pump body and connecting the disc 13 to the spring seat, the screw 11 can be rotated to drive the The disc 13 moves relative to the fixed frame 3, thereby driving the spring seat to move; when the valve seat is removed from the plunger pump body, the fixed frame 3 is connected to the plunger pump body, and the traction assembly 2 After being connected to the valve seat, the traction assembly 2 can be driven to move relative to the fixing frame 3 by rotating the screw 11, thereby driving the valve seat to move. The above disassembly process is simple to operate, saves time and effort, avoids damage to the plunger pump during the disassembly process, and does not affect the use of the plunger pump.

The structure and working principle of each part of the device are described in detail below:

1. Structure and working principle of screw assembly 1

The screw assembly 1 includes a screw 11, a connecting head 12 and a disc 13 sequentially connected to the screw 11 from left to right, and the disc 13 is used to connect the spring seat, so that the device can be used to disassemble the plunger pump spring seat.

The screw 11 has an external thread, which is on the right side of the disc 13 and is used to connect the fixing frame 3; When the spring is seated, the right end of the screw 11 can be rotated to make the screw 11 rotate relative to the fixing frame 3, thereby driving the connecting head 12 and the disk 13 to move; the connecting head 12 is connected to the left end of the screw 11, using It is used to connect the traction component 2 so as to drive the traction component 2 to move.

In a possible design, the disc 13 is detachably connected to the screw rod 11; the right end of the connector 12 is detachably connected to the screw rod 11, so that the device can also be used to install the spring seat to the column on the pump body.

According to the above design, when the spring seat needs to be installed on the plunger pump body, first place the spring seat in a proper position on the plunger pump body, and remove the disc 13 and the connecting head 12 from the screw 11 Remove and pass the left end of the screw rod 11 through the spring seat from the outside of the spring seat, after the left end of the screw rod 11 exposes the other side of the spring seat, connect the disc 13 to the screw rod 11, By rotating the screw 11, the disc 13 is moved toward the spring seat, pushing the spring seat to move and enter its installation position.

In a possible design, the disc 13 includes a central disc 131 and two circular platforms 132 connected to the left and right sides of the central disc 131 ; the two circular platforms 132 are used to connect the spring seat. The two circular platforms 132 can make the connection between the circular disc 13 and the spring seat more secure, and prevent the disassembly or installation process from being affected by slippage and the like.

In a possible design, the screw 11 includes a first screw part 111 , a second screw part 112 and a third screw part 113 which are arranged from left to right and whose diameters increase in sequence; the disk 13 is sleeved on the second screw on the left end face of the first screw part 111; the first screw part 111 and the third screw part 113 are both provided with external threads, and the external threads on the first screw part 111 are used for connection In the fixing frame 3 , the external thread on the third screw portion 113 is used for connecting the nut 14 , and the nut 14 is used for locking the disk 13 .

The diameter of the first screw portion 111 is relatively small, which is convenient for the first screw portion 111 to be inserted into the spring seat; the disk 13 is provided with a central hole, and the diameter of the second screw portion 112 is larger than that of the first screw portion 111 and the diameter of the second screw portion 112 is slightly smaller than the diameter of the central hole of the disc 13 , so that the disc 13 can be fitted on the second screw portion 112 and the nut 14 can be fitted on the first screw portion 111 The nut 14 locks the disk 13 from the left side of the disk; the diameter of the third screw part 113 is larger than the diameter of the second screw part 112 , and the left end face of the third screw part 113 is used for locking The disc 13.

In a possible design, the right end of the connecting head 12 is connected to the screw rod 11 by means of a screw thread, which facilitates the disassembly and assembly of the connecting head 12 .

In a possible design, the side of the connector 12 is provided with a first wrench slot 121 , which is more convenient to disassemble and assemble the connector 12 by a wrench, and can protect the connector 12 from being damaged during disassembly.

In a possible design, the screw assembly 1 further includes a handle 15 ; the handle 15 is connected to the right side of the fixing frame 3 on the screw 11 . Using the handle 15 to rotate the screw 11 saves time and effort.

2. Structure and working principle of traction assembly 2

The right end of the pulling assembly 2 is connected to the connecting head 12 , the connecting head 12 can drive the pulling assembly 2 to move, and the left end of the pulling assembly 2 is used to connect the valve seat and drive the valve seat to move.

In a possible design, the traction assembly 2 includes a traction head 21 and a collar 22; the collar 22 includes a cylinder 221 and a bottom plate 222, and the bottom plate 222 is provided with a first through hole 223; the traction head 21 is a cylinder The right end of the pulling head 21 is detachably connected to the cylinder 221 of the coupling 22, the left end of the pulling head 21 is used to connect the valve seat, and the side of the pulling head 21 is provided with a second wrench slot 211 ; The left end of the connecting head 12 is connected to the right end of the pulling head 21 through the first through hole 223 .

When disassembling the valve seat of the plunger pump, connect the fixing bracket 3 to the plunger pump body, and connect the pulling head 21 to the valve seat, and the pulling head 21 can be connected by screw connection or clip connection. Connecting the valve seat is not limited in this embodiment; the screw 11 drives the connecting head 12 to move, and then drives the coupling 22 and the pulling head 21 to move, so as to separate the valve seat from the plunger pump body. In the case where the pulling head 21 is connected to the valve seat by means of screw connection, when the valve seat is disassembled, the connecting head 12 can be disengaged from the pulling head 21, the connecting head 12 is locked in the coupling 22, and the connection The head 12 drives the pulling head 21 and the valve seat to move by driving the coupling 22 to move, which can avoid loosening the threaded connection between the pulling head 21 and the valve seat during the process of rotating the screw 11, but cannot Drive the valve seat to move.

In a possible design, a polygonal groove 212 is provided on the end surface of the right end of the pulling head 21 ; the left end of the connecting head 12 is matched with the polygonal groove 212 . The above design facilitates rapid alignment and separation between the pulling head 21 and the connecting head 12, and is beneficial to improve the speed of the process of disassembling the valve seat.

3. The structure and working principle of the fixing frame 3

The fixing frame 3 is used to connect the plunger pump body, and the screw 11 is used to drive the spring seat or the valve seat to move through relative rotation with the fixing frame 3 . Through the connection between the fixing frame 3 and the plunger pump body, the screw 11 is made to coincide with the axis of the spring seat or the valve seat to ensure that the spring seat or the valve seat moves along the axis. For example, the fixing frame 3 can be a disk 13 or other shapes. Through the connection between the fixing frame 3 and the plunger pump body, in the process of rotating the screw rod 11, the screw rod 11 drives the spring seat or the valve The seat moves relative to the plunger pump body, thereby disengaging the spring seat or the valve seat from the plunger pump body.

In a possible design, the fixing frame 3 has a plurality of second through holes 31 ; the plurality of second through holes 31 are used to connect the fixing frame 3 and the plunger pump body. Through the second through hole 31, the fixing frame 3 can be sleeved on the flange bolt of the plunger pump body; or use a bolt to penetrate the second through hole 31 and the flange hole, and then connect the fixing frame 3 on the plunger pump body.

All the above-mentioned optional technical solutions can be combined arbitrarily to form optional embodiments of the present disclosure, which will not be repeated here.

The device provided by the embodiment of the present invention includes a screw assembly 1, a traction assembly 2 and a fixing frame 3. The screw assembly 1 is connected to the fixing frame 3 by means of threads, and the pulling assembly 2 is connected to one end of the screw assembly 1; when When removing the spring seat from the plunger pump body, after connecting the fixing bracket 3 to the plunger pump body and connecting the disc 13 to the spring seat, the screw 11 can be rotated to drive the disc 13 moves relative to the fixed frame 3, thereby driving the spring seat to move; when the valve seat is removed from the plunger pump body, connect the fixed frame 3 to the plunger pump body, and connect the traction assembly 2 to the plunger pump body. After the valve seat is on, the screw 11 can be rotated to drive the traction assembly 2 to move relative to the fixing frame 3, thereby driving the valve seat to move. The above disassembly process is simple to operate, saves time and effort, avoids damage to the plunger pump during the disassembly process, and does not affect the use of the plunger pump. Further, the disc 13 and the screw rod 11 are connected in a detachable manner, so that the device can also be used for the installation of the spring seat; the traction assembly 2 includes a traction head 21 and a coupling 22, which can avoid rotating During the process of the screw 11, the screw connection between the pulling head 21 and the valve seat is loosened, but the valve seat cannot be driven to move.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. an overhaul device of a plunger pump, the plunger pump to be overhauled comprises a spring seat, a valve seat and a plunger pump body, it is characterized in that, described device comprises: screw assembly (1), traction assembly (2) and Holder (3): The screw assembly (1) comprises a screw (11), a connecting head (12) and a disc (13) sequentially connected to the screw (11) from left to right, and the disc (13) is used for connecting the spring seat; The right end of the pulling assembly (2) is connected to the connecting head (12), and the left end of the pulling assembly (2) is used for connecting to the valve seat; The screw (11) is connected in the threaded hole of the fixing frame (3) by means of a thread, and the fixing frame (3) is located on the right side of the disc (13) on the screw (11), The fixing frame (3) is used to connect the plunger pump body; The screw rod (11) is used to drive the spring seat or the valve seat to move through relative rotation with the fixing frame (3). 2. The device according to claim 1, wherein the disc (13) is detachably connected to the screw (11); The right end of the connecting head (12) is detachably connected to the screw (11). 3. The device according to claim 2, wherein the disc (13) comprises a central disc (131) and two circular platforms (132) connected to the left and right sides of the central disc (131). ; The two circular platforms (132) are used to connect the spring seat. 4. The device according to claim 2, wherein the screw (11) comprises a first screw part (111), a second screw part (112) and a first screw part (111), a second screw part (112) and a second screw part (112), which are arranged from left to right and whose diameters increase in sequence. Three screw parts (113); The disc (13) is sleeved on the second screw part (112), and is locked on the left end face of the first screw part (111); Both the first screw part (111) and the third screw part (113) are provided with external threads, and the external threads on the first screw part (111) are used to connect the fixing frame (3), The external thread on the third screw part (113) is used for connecting a nut (14), and the nut (14) is used for locking the disc (13). 5. The device according to claim 2, characterized in that, the right end of the connecting head (12) is connected to the screw rod (11) by means of a thread. 6. The device according to claim 5, characterized in that, a first spanner slot (121) is provided on the side surface of the connecting head (12). 7. The device according to claim 1, wherein the pulling assembly (2) comprises a pulling head (21) and a coupling (22); The coupling (22) includes a cylinder (221) and a bottom plate (222), and the bottom plate (222) is provided with a first through hole (223); The pulling head (21) is cylindrical, the right end of the pulling head (21) is detachably connected in the cylinder (221) of the coupling (22), and the left end of the pulling head (21) is In connection with the valve seat, a second wrench slot (211) is provided on the side of the traction head (21); The left end of the connecting head (12) is connected to the right end of the pulling head (21) through the first through hole (223). 8. The device according to claim 7, wherein a polygonal groove (212) is provided on the end face of the right end of the traction head (21); The left end of the connecting head (12) is matched with the polygonal groove (212). 9. The device according to claim 1, wherein the fixing frame (3) has a plurality of second through holes (31); The plurality of second through holes (31) are used for connecting the fixing frame (3) and the plunger pump body. 10. The device according to claim 1, wherein the screw assembly (1) further comprises a handle (15); The handle (15) is connected to the right side of the fixing frame (3) on the screw rod (11).