CN211415009U

CN211415009U - Disassembling and assembling device for pump plunger

Info

Publication number: CN211415009U
Application number: CN201921733540.5U
Authority: CN
Inventors: 陈应明; 张峰; 李阳; 张文强; 王彪
Original assignee: China National Petroleum Corp; BGP Inc
Current assignee: China National Petroleum Corp; BGP Inc
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-09-04
Anticipated expiration: 2029-10-15

Abstract

The utility model provides a dismouting device of pump plunger, this pump plunger's dismouting device includes: the handle comprises a support, a butting rod, a first connecting plate, a second connecting plate and a handle connected with the first connecting plate; the abutting rod is connected to the support in a sliding mode and can move in the forward direction or the reverse direction of the abutting direction relative to the support, and the first end of the abutting rod points to the second end of the abutting rod in the abutting direction; the first end of the first connecting plate is hinged to the support, the second end of the first connecting plate is hinged to the first end of the second connecting plate, and the second end of the second connecting plate is hinged to the first end of the abutting rod; the direction of the first end of directional butt pole, the pin joint between first connecting plate and the support, with the butt direction syntropy. Through the utility model discloses, alleviated the great technical problem of the operation degree of difficulty of dismantling the oil pump plunger among the prior art.

Description

Disassembling and assembling device for pump plunger

Technical Field

The utility model relates to an oil pump repair tools's technical field especially relates to a dismouting device of pump plunger.

Background

A bulldozer is often used in the petroleum seismic exploration process, and an oil pump is an important power component in the bulldozer. When the oil pump is repaired, the plunger sometimes needs to be detached from the oil pump. Referring to fig. 1, fig. 1 is a schematic diagram illustrating the connection between the plunger 100 and the pump body, wherein the plunger 100 tends to move outward of the pump body 200 under the action of the plunger spring 300; plunger lock gland 400 is attached to pump body 200 and compresses plunger 100 within pump body 200 to prevent outward ejection of plunger 100. In removing the plunger 100, it is necessary to remove the plunger lock gland 400 first and pull the plunger 100 outward at a slower rate. In actual maintenance, manual operation is usually performed, and due to the strong spring force of the plunger spring 300, after the plunger lock gland 400 is removed, the plunger 100 is easily ejected outward by the action of the plunger spring 300, and the speed is difficult to control, so that the plunger 100 and the pump body 200 are damaged, and an operator is easily injured.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dismouting device of pump plunger to alleviate the great technical problem of the operation degree of difficulty of dismantling oil pump plunger among the prior art.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a dismouting device of pump plunger, include: the device comprises a support, a butting rod, a first connecting plate, a second connecting plate and a handle connected to the first connecting plate; the abutting rod is connected to the support in a sliding mode and can move in the forward direction or the reverse direction of the abutting direction relative to the support, and the first end of the abutting rod points to the second end of the abutting rod along the abutting direction; the first end of the first connecting plate is hinged to the support, the second end of the first connecting plate is hinged to the first end of the second connecting plate, and the second end of the second connecting plate is hinged to the first end of the abutting rod; the first connecting plate with the pin joint between the support points to the direction of the first end of the butt joint rod, and the butt joint direction is the same as the butt joint direction.

In a preferred embodiment, the pump plunger dismounting device comprises a guide cylinder fixedly arranged on the support, the guide cylinder extends along the abutting direction, and the abutting rod is slidably arranged in the guide cylinder in a penetrating manner.

In a preferred embodiment, said second web extends in a curved manner in a plane perpendicular to the hinging axis thereof.

In a preferred embodiment, the support is provided with a first connecting groove for connecting the first connecting plate, and an end of the first connecting plate is arranged in the first connecting groove.

In a preferred embodiment, the first connecting plate is provided with a second connecting groove in which an end of the first end of the second connecting plate is provided.

In a preferred embodiment, the end of the second end of the abutment rod is provided with a first nut for cooperating with the end of the plunger.

In a preferred embodiment, the length of the abutment rod is telescopically adjustable.

In a preferred embodiment, the abutment rod includes a first rod, a second nut, and a second rod connected in sequence along the abutment direction, the first rod is screwed with the second nut, and the second rod is screwed with the second nut.

In a preferred embodiment, the bottom of the holder is provided with a mounting surface, which is perpendicular to the abutment direction.

In a preferred embodiment, the bottom of the seat is provided with a third nut, which can be coupled to the plunger.

The utility model discloses a characteristics and advantage are:

the pump plunger dismounting device is fixed through the support. When dismantling the oil pump plunger, make this dismouting device's butt direction parallel with the axis direction of waiting to dismantle the plunger, rotate through the first connecting plate of handle drive, drive second connecting plate and butt pole motion, make the second end of butt pole with wait to dismantle the plunger butt, and make the line at first connecting plate both ends coincide mutually with the line at the both ends of second connecting plate, and above-mentioned line parallels with the butt direction, this dismouting device is in the dead point position this moment, the butt pole can't take place the motion under the effect of the reverse force of butt direction, thereby can prevent to wait to dismantle the plunger and outwards pop out, realize the locking. Demolish the back with plunger locking gland from the pump body, can control the direction removal of butt pole along the butt direction through the handle, the speed of pulling out of plunger is treated to the control of being convenient for, and it is impaired with the pump body to reduce to treat to dismantle plunger and pump body to avoid operating personnel injured betterly.

When the oil pump plunger is installed, the abutting rod is abutted to the plunger to be installed, the abutting rod is driven by the handle to move along the abutting direction, the spring force of the plunger spring is overcome conveniently, and the plunger to be installed is pressed into the pump body.

Through this dismouting device, reduced the operation degree of difficulty of dismantling the oil pump plunger, can reduce and dismantle that in-process plunger and pump body are impaired, operating personnel are injured to, this dismouting device still provides convenience for the installation operation of plunger, is favorable to reducing intensity of labour.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the connection of a plunger to a pump body;

fig. 2 is a front view of the device for assembling and disassembling a pump plunger according to the present invention;

fig. 3 is an axonometric view of the dismounting device of the pump plunger provided by the utility model.

The reference numbers illustrate:

100. a plunger; 200. a pump body; 210. a reference plane; 300. a plunger spring; 400. a plunger locking gland; 500. an abutment direction;

10. a first connecting plate; 11. a first end of a first connecting plate; 12. a second end of the first connecting plate; 13. a second connecting groove;

20. a second connecting plate;

30. a support; 31. a first connecting groove; 32. a mounting surface;

40. a butting rod; 41. a first lever; 42. a second lever; 43. a second nut;

50. a handle; 60. a guide cylinder; 70. a first nut; 80. and a third nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a dismouting device of pump plunger, as shown in figure 2, this dismouting device of pump plunger includes: a support 30, an abutment bar 40, a first connecting plate 10, a second connecting plate 20 and a handle 50 connected to the first connecting plate 10; the abutting rod 40 is slidably connected to the support 30 and can move relative to the support 30 in the forward direction or the reverse direction of the abutting direction 500, and a first end of the abutting rod 40 points to a second end of the abutting rod 40 along the abutting direction 500; the first end 11 of the first connecting plate is hinged to the support 30, the second end 12 of the first connecting plate is hinged to the first end of the second connecting plate 20, the second end of the second connecting plate 20 is hinged to the first end of the abutting rod 40, and the support 30, the first connecting plate 10, the second connecting plate 20 and the abutting rod 40 form a crank-slider mechanism. The hinge point between the first connecting plate 10 and the support 30, which points in the direction of the first end of the abutment bar 40, is in the same direction as the abutment direction 500, so that the slider-crank mechanism has a dead-center position.

The pump plunger attaching and detaching device is fixed by a holder 30. When the oil pump plunger is disassembled, the abutting direction 500 of the disassembling device is made to be parallel to the axis direction of the plunger 100 to be disassembled, the handle 50 drives the first connecting plate 10 to rotate, the second connecting plate 20 and the abutting rod 40 are driven to move, the second end of the abutting rod 40 is made to abut against the plunger 100 to be disassembled, the connecting lines at the two ends of the first connecting plate 10 are made to coincide with the connecting lines at the two ends of the second connecting plate 20, the connecting lines are parallel to the abutting direction 500, the disassembling device is located at a dead point position at the moment, the abutting rod 40 cannot move under the reverse force of the abutting direction 500, and therefore the plunger 100 to be disassembled can be prevented from popping outwards, and reliable locking is achieved. Demolish plunger locking gland 400 back from the pump body, can control through handle 50 that the pole 40 is moved along the direction of butt direction 500 to the butt, be convenient for control waits to dismantle the extraction rate of plunger, reduce and wait to dismantle that the plunger is impaired to avoid operating personnel is injured betterly.

When the oil pump plunger is installed, the abutting rod 40 abuts against the plunger to be installed, and the handle 50 drives the abutting rod 40 to move in the abutting direction 500, so that the plunger 100 to be installed is pressed into the pump body 200 against the spring force of the plunger spring 300.

Through this dismouting device, reduced the operation degree of difficulty of dismantling oil pump plunger, can reduce and be dismantling in-process plunger damage and operating personnel injured to, this dismouting device still provides convenience for the installation operation of plunger, is favorable to reducing intensity of labour. Through the operation of the handle 50, more labor is saved, and the operation safety and efficiency are improved.

In order to make the butt pole 40 move more steadily, this dismouting device is including setting firmly in the guide cylinder 60 of support 30, the guide cylinder 60 extends along butt direction 500, the butt pole 40 slides and wears to locate in the guide cylinder 60, the guide cylinder 60 guides the butt pole 40 and moves along butt direction 500, avoid the butt pole 40 to take place the skew, can make the butt pole 40 move more smoothly, and, when dismantling and installing plunger 100, be convenient for make plunger 100 move steadily, it is impaired to reduce plunger 100. Preferably, the guide cylinder 60 is made of a steel pipe and is fixed to the support 30 by a steel plate.

As shown in fig. 2, the second connecting plate 20 extends in a curved line on a plane perpendicular to the hinge axis thereof. Compared with a straight plate, the curved second connecting plate 20 can transmit torque more stably, and particularly when the connecting line of the two ends of the first connecting plate 10 coincides with the connecting line of the two ends of the second connecting plate 20 and the connecting lines are parallel to the abutting direction 500, the curved second connecting plate 20 can better transmit the forward or reverse acting force along the abutting direction 500, so that the deflection of the first connecting plate 10 and the second connecting plate 20 is reduced, the crank-slider mechanism is maintained at a dead point more stably, and the reliability of locking is improved. Further, as shown in fig. 2, the second connecting plate 20 having a curved shape protrudes to a side away from the holder 30.

Referring to fig. 3, the support 30 is provided with a first connecting groove 31 for connecting the first connecting plate 10, an end of the first end 11 of the first connecting plate is disposed in the first connecting groove 31, a hinge shaft is disposed in the first connecting groove 31, the first connecting plate 10 is connected to the hinge shaft, and the first connecting plate 10 and the support 30 transmit torque through the hinge shaft. The first connecting plate 10 is provided with a second connecting groove 13, the end part of the first end of the second connecting plate 20 is arranged in the second connecting groove 13, a hinge shaft is arranged in the second connecting groove 13, the second connecting plate 20 is connected to the hinge shaft, and the second connecting plate 20 and the first connecting plate 10 transmit torque through the hinge shaft. Between support 30 and the first connecting plate 10 and between first connecting plate 10 and the second connecting plate 20, through above-mentioned structural connection, be favorable to making the effort that transmits between support 30 and the first connecting plate 10, and the effort that transmits between first connecting plate 10 and the second connecting plate 20 lie in the same plane to improve the motion stability of first connecting plate 10 and second connecting plate 20, and the bearing capacity of this dismouting device.

In an embodiment of the present invention, the end of the second end of the abutting rod 40 is provided with a first nut 70 for engaging with the end of the plunger 100, and the first nut 70 has a larger end surface area, so as to increase the contact area with the plunger 100. A first nut 70 is threaded onto the second end of the abutment bar 40 for easy replacement to mate with a plunger to be removed or a plunger to be installed. In some cases, the first nut 70 may mate with external threads of the end of the plunger to be removed or the plunger to be installed to improve connection reliability.

The utility model discloses an in the embodiment, the scalable adjustment of length of butt joint pole 40 to when this slider-crank mechanism reachs the dead point position, the second end of butt joint pole 40 just in time with wait to dismantle the plunger butt, make this dismouting device can be applicable to the oil pump or the air pump of multiple size type.

Further, the abutment lever 40 includes a first lever 41, a second nut 43, and a second lever 42 connected in sequence along the abutment direction 500, the first lever 41 being screwed with the second nut 43, and the second lever 42 being screwed with the second nut 43. The adjustment of the length of the abutting rod 40 can be achieved by rotating the second nut 43 and the first rod 41 relative to each other or by rotating the second nut 43 and the second rod 42 relative to each other.

Pump body 200 is generally provided with a reference plane 210. As shown in fig. 2, the bottom of the seat 30 is provided with a mounting surface 32, the mounting surface 32 is perpendicular to the abutting direction 500, and the abutting direction 500 of the dismounting device is overlapped with the axial direction of the plunger 100 by matching the mounting surface 32 with the reference plane 210 on the pump body 200, so that the plunger 100 can be stably moved along the self axial line during dismounting, and damage is reduced.

Further, the bottom of the support 30 is provided with a third nut 80, and the third nut 80 can be connected with the plunger. When the plunger 100 is disassembled, the third nut 80 is matched with the plunger to be disassembled or the plunger adjacent to the plunger to be installed, so that the disassembling and assembling device is fixed on the pump body 200, the contact ratio between the abutting direction 500 and the axis of the plunger 100 is improved, and the accurate positioning of the plunger 100 relative to the pump body 200 in the disassembling and assembling process is guaranteed.

The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. A pump plunger's dismouting device which characterized in that includes: the device comprises a support, a butting rod, a first connecting plate, a second connecting plate and a handle connected to the first connecting plate;

the abutting rod is connected to the support in a sliding mode and can move in the forward direction or the reverse direction of the abutting direction relative to the support, and the first end of the abutting rod points to the second end of the abutting rod along the abutting direction;

the first end of the first connecting plate is hinged to the support, the second end of the first connecting plate is hinged to the first end of the second connecting plate, and the second end of the second connecting plate is hinged to the first end of the abutting rod;

the first connecting plate with the pin joint between the support points to the direction of the first end of the butt joint rod, and the butt joint direction is the same as the butt joint direction.

2. The device for assembling and disassembling a pump plunger according to claim 1, wherein the device for assembling and disassembling a pump plunger comprises a guide cylinder fixedly arranged on the support, the guide cylinder extends along the abutting direction, and the abutting rod is slidably arranged in the guide cylinder in a penetrating manner.

3. The pump plunger removing and mounting device as claimed in claim 1, wherein said second connecting plate extends in a curved line in a plane perpendicular to a hinge axis thereof.

4. The pump plunger dismounting device according to claim 1, wherein the support is provided with a first connecting groove for connecting the first connecting plate, and an end portion of the first end of the first connecting plate is disposed in the first connecting groove.

5. The pump plunger dismounting device according to claim 4, wherein the first connecting plate is provided with a second connecting groove, and an end portion of the first end of the second connecting plate is provided in the second connecting groove.

6. The device for assembling and disassembling a pump plunger according to claim 1, wherein an end of the second end of the abutting rod is provided with a first nut for engaging with an end of the plunger.

7. The pump plunger dismounting device according to claim 1, wherein the length of said abutment rod is telescopically adjustable.

8. The device for detaching and attaching a pump plunger according to claim 7, wherein the abutting rod includes a first rod, a second nut, and a second rod connected in this order in the abutting direction, the first rod being screwed to the second nut, and the second rod being screwed to the second nut.

9. The pump plunger attaching and detaching device as claimed in claim 1, wherein a bottom portion of the holder is provided with a mounting surface perpendicular to the abutting direction.

10. The device for assembling and disassembling a pump plunger according to claim 9, wherein a third nut is provided on a bottom of the seat, and the third nut is capable of being coupled to the plunger.