CN218875286U

CN218875286U - Disassembling tool for high-pressure reciprocating pump

Info

Publication number: CN218875286U
Application number: CN202222871170.XU
Authority: CN
Inventors: 王钰新; 张敏; 王立斌; 张兵; 田保蕾; 王红伟
Original assignee: Sinopec Catalyst Shandong Co ltd; China Petroleum and Chemical Corp; Sinopec Catalyst Co
Current assignee: Sinopec Catalyst Shandong Co ltd; China Petroleum and Chemical Corp; Sinopec Catalyst Co
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-18
Anticipated expiration: 2032-10-28

Abstract

The utility model relates to a plunger packing technical field discloses a extracting tool for high-pressure reciprocating pump, high-pressure reciprocating pump include crank link mechanism, with packing box (8) that the crank link mechanism interval set up be equipped with central through-hole and attach to packing group (10) on packing box (8) inner wall, extracting tool is including passing pull rod (1) and the setting of through-hole on packing box (8) are in baffle (2) on pull rod (1), baffle (2) can set up packing group (10) are kept away from crank link mechanism's one end, pull rod (1) can connect in crank link mechanism, in order to pass through baffle (2) drive packing group (10) for packing box (8) remove. Through the technical scheme, the crank-connecting rod mechanism in the high-pressure reciprocating pump is reasonably utilized, the operation is convenient and safe, the disassembly is easy, and the working efficiency is greatly improved.

Description

Disassembling tool for high-pressure reciprocating pump

Technical Field

The utility model relates to a plunger packing technical field specifically relates to a extracting tool for high-pressure reciprocating pump.

Background

The high-pressure reciprocating pump plunger filler is embedded in the stuffing box and is tightly connected with the inner wall of the stuffing box and the plunger; after the high-pressure reciprocating pump runs for a long time, the packing group is worn in the packing box, and the sealing effect is lost after the packing group is aged, so that the normal work of the high-pressure reciprocating pump can be influenced.

At present, when a stuffing set is disassembled, the stuffing set can be disassembled generally by knocking the stuffing with a big hammer with force, so that time and labor are wasted in the hammering process, the efficiency is low, the inner wall of a stuffing box is easy to damage, and even safety accidents such as smashing, bruising and the like occur. Therefore, how to safely and conveniently take out the packing group is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the dismantlement difficulty problem that prior art exists, providing a extracting tool, this instrument has the fender ring, can extrude the packing group easily.

In order to realize the above-mentioned purpose, the utility model provides an aspect provides a extracting tool for high-pressure reciprocating pump, high-pressure reciprocating pump includes crank link mechanism, with the stuffing box that is equipped with central through-hole that crank link mechanism interval set up with inlay filler group on the stuffing box inner wall, extracting tool is including passing pull rod and the setting of through-hole on the stuffing box are in baffle on the pull rod, the baffle can set up filler group keeps away from crank link mechanism's one end, the pull rod can connect in crank link mechanism, in order to pass through the baffle drive filler group for the stuffing box removes.

Optionally, the baffle is a circular plate having a diameter greater than an inner diameter of the packing set and less than an outer diameter of the packing set.

Optionally, the connecting rod is detachably arranged on a crosshead connecting rod on the crank-link mechanism.

Optionally, the connecting piece include with the base that the pull rod links to each other and for the base orientation the protruding connecting portion of crank link mechanism, be equipped with on the connecting portion with internal thread assorted external screw thread on the cross head connecting rod.

Optionally, a screw hole is formed in the base of the connecting piece, and an external thread matched with the screw hole is formed in the pull rod.

Optionally, a protruding assisting structure is arranged on the outer peripheral surface of the base of the connecting piece.

Optionally, at least one pair of circular holes and a circular rod capable of being inserted into the circular holes are arranged on the outer peripheral surface of the base of the connecting piece.

Optionally, the baffle plate is slidably sleeved on the pull rod, and the baffle plate can be pressed on the filler through the fixing piece.

Optionally, the pull rod further comprises an adjusting sleeve arranged between the fixing piece and the baffle, and the adjusting sleeve can be sleeved on the pull rod.

Optionally, the fixing part is a nut, and an external thread matched with the nut is arranged on the outer peripheral surface of one end of the pull rod, which is far away from the crank link mechanism.

Through the technical scheme, the baffle can be pressed on the packing set, the pull rod can be connected with the crank-link mechanism so that the pull rod can move along the central axis of the packing box, the baffle is driven to extrude the packing set, the crank-link mechanism in the high-pressure reciprocating pump is reasonably utilized, the operation is convenient and safe, the disassembly is easy, and the working efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a disassembling tool for a high-pressure reciprocating pump according to the present invention.

Description of the reference numerals

1. The device comprises a pull rod, 2, a baffle, 3, a fixing piece, 4, a crosshead connecting rod, 5, a connecting piece, 6, an adjusting sleeve, 7, a round hole, 8, a stuffing box, 9, a guide sleeve, 10 and a stuffing set.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It should be understood that the description herein is provided for illustration and explanation of the invention and is not intended to limit the invention.

The utility model provides a extracting tool for high-pressure reciprocating pump, high-pressure reciprocating pump includes crank link mechanism, with the packing box 8 that is equipped with the central through-hole that crank link mechanism interval set up and inlay packing group 10 on 8 inner walls of packing box, extracting tool is including the pull rod 1 that can pass the through-hole on the packing box 8 and set up baffle 2 on pull rod 1, baffle 2 can set up the one end of keeping away from crank link mechanism at packing group 10, pull rod 1 can connect in crank link mechanism to it removes for packing box 8 to drive packing group 10 through baffle 2.

As shown in fig. 1, the crank-link mechanism can drive the plunger to reciprocate in the stuffing box 8 along its central axis, before the stuffing set 10 is detached, the connection between the plunger and the crank-link mechanism needs to be released, the jigger positions the plunger stroke at the top dead center, that is, the crank-link mechanism is in a state of pushing the plunger to the leftmost position in fig. 1 (that is, the position of the crank-link mechanism closest to the stuffing box 8), and takes out the plunger from the stuffing box, the pull rod 1 is connected with the crank-link mechanism, the pull rod 1 is pulled to move rightwards (in fig. 1) along the central axis direction of the stuffing box 8 under the driving of the crank-link mechanism, guide sleeves 9 are further provided in the stuffing box 8 at both sides of the stuffing set 10 for limiting the stuffing set 10, the baffle plate 2 is pressed against the guide sleeves 9 under the driving of the pull rod 1, and when the crank-link mechanism moves to the bottom dead center position, the stuffing set 10 is just pressed out. Through the technical scheme, the baffle can be pressed on the packing set, the pull rod can be connected with the crank-link mechanism so that the pull rod can move along the central axis of the packing box, the baffle is driven to extrude the packing set, the crank-link mechanism in the high-pressure reciprocating pump is reasonably utilized, the operation is convenient and safe, the disassembly is easy, and the working efficiency is greatly improved.

In one embodiment, baffle 2 is a circular plate, and the diameter of baffle 2 is greater than the inner diameter of packing set 10 and less than the outer diameter of packing set 10.

As shown in fig. 1, the packing set 10 is used for filling a gap between the plunger and the inner wall of the stuffing box 8, the plunger and the inner wall of the stuffing box 8 are both cylindrical, the cross section of the packing set 10 is circular, and the baffle 2 is set to be circular to better extrude the packing set 10; the diameter of the baffle 2 is larger than the inner diameter of the packing set 10 and smaller than the outer diameter of the packing set 10, and as a preferred embodiment, the diameter of the baffle 2 is slightly smaller than the outer diameter of the packing set 10, so that the baffle 2 can smoothly slide in the packing box 8, and meanwhile, the contact area between the baffle 2 and the packing set 10 is increased as much as possible, and the packing set 10 is conveniently extruded.

Further, the device also comprises a connecting piece 5 arranged at one end of the pull rod 1 close to the crank-link mechanism, and the connecting piece 5 is detachably arranged on a crosshead connecting rod 4 on the crank-link mechanism.

As shown in fig. 1, in order to reduce the weight of the removal tool, the diameter of the tie rod 1 is small and the tie rod 1 cannot be directly fitted to the crosshead link 4, and therefore, the tie rod 1 and the crosshead link 4 are detachably connected by providing a connector 5 as an intermediate conversion connector.

As an embodiment, the connecting piece 5 comprises a base connected to the pull rod 1 and a connecting portion projecting towards the crank linkage with respect to the base, which connecting portion is provided with an external thread matching an internal thread on the crosshead connecting rod 4.

As shown in fig. 1, the connecting piece 5 includes base and connecting portion two parts, and the base can set up on pull rod 1, and connecting portion can set up on cross head connecting rod 4, is equipped with the internal thread on cross head connecting rod 4, and connecting portion are the external screw thread structure, and connecting portion pass through the mode detachably setting of spiro union on cross head connecting rod 4, and then realize pull rod 1 and cross head connecting rod 4's relatively fixed.

Wherein, the base of the connecting piece 5 is provided with a screw hole, and the pull rod 1 is provided with an external thread matched with the screw hole.

As shown in fig. 1, the pull rod 1 and the connecting member 5 can be detachably connected together by means of screw connection, clamping connection, etc., in order to increase the connection strength and the convenience of detachment, a screw connection is adopted, the outer peripheral surface of the corresponding pull rod 1 is provided with a screw thread, and the base of the connecting member 5 is provided with a screw hole matched with the screw thread.

Furthermore, a raised boosting structure is arranged on the outer peripheral surface of the base of the connecting piece 5.

As shown in fig. 1, the outer peripheral surface of the base is provided with the convex boosting structure, so that the connecting piece 5 can be screwed into the crosshead connecting rod 4 and fixed, the convex boosting structure can adopt convex points, convex ribs and the like to increase friction force so as to easily screw the connecting piece 5 into the crosshead connecting rod 4, and can also adopt a structure with a plurality of bulges so as to increase rotating torque and can screw the connecting piece 5 into the crosshead connecting rod 4 and tighten the connecting piece more laborsavingly.

In one embodiment, the base of the connector 5 is provided with at least a pair of circular holes 7 and a round bar that can be inserted into the circular holes 7 on the outer peripheral surface.

As shown in fig. 1, when the connecting piece 5 needs to be screwed or loosened, a round bar can be inserted into the round hole 7, and the round bar is pulled by two hands, so that the connecting piece 5 is rotated, and the fixing or loosening is more labor-saving and convenient; after the use, the round bar can be taken down, thereby being convenient for transportation.

Further, the disassembling tool further comprises a fixing part 3 arranged at one end, far away from the crank-link mechanism, of the pull rod 1, the baffle plate 2 is slidably sleeved on the pull rod 1, and the baffle plate 2 can be pressed on the packing set 10 through the fixing part 3.

As shown in fig. 1, the baffle 2 may be disposed on the pull rod 1 by welding, screwing, or the like, as an optional implementation manner, in the application, the baffle 2 is disposed to be able to be sleeved on the pull rod 1, and the baffle 2 is limited by the fixing member 3 (the end surface of the baffle 2 away from the crank connecting mechanism is limited), when the crank connecting rod mechanism pulls the pull rod 1, the fixing member 3 is fixed relative to the pull rod 1, the fixing member 3 abuts against the baffle 2 and enables the baffle 2 to be pressed on the filler group 10, and the baffle 2 extrudes the filler group 10 by continuously pulling the crank connecting rod mechanism; the fixing piece 3 can move on the pull rod 1 along the central axis of the pull rod and can be relatively fixed, so that when the pull rod 1 is fixed on the crank-link mechanism, the baffle plate 2 is firstly sleeved on the pull rod 1 and attached to the guide sleeve 9, and then the fixing piece 3 is attached to the baffle plate 2 and fixed.

Furthermore, the disassembling tool also comprises an adjusting sleeve 6 arranged between the fixing piece 3 and the baffle 2, and the adjusting sleeve 6 can be sleeved on the pull rod 1.

As shown in figure 1, in order to be suitable for the disassembly of the plunger piston stuffing set of the reciprocating pump with various models, the stuffing boxes 8 with various models are different in length, that is, after the disassembly tool finishes the fixation, the baffle 2 is attached to the guide sleeve 9, when the disassembly tool is used for disassembling the stuffing box 8 with longer length, the baffle 2 possibly extends into the cavity of the stuffing box 8, so that the fixing piece 3 is also positioned in the stuffing box 8, the fixing piece 3 is inconvenient to operate and adjust, the fixing piece 3 can be exposed out of the stuffing box 8 by arranging the adjusting sleeve 6 with certain length, the operation on the fixing piece 3 is facilitated, and the assembly and disassembly of the tool are realized.

In one embodiment, the fixing element 3 is a nut, and an external thread matching with the nut is arranged on the outer circumferential surface of one end of the pull rod 1 away from the crank link mechanism.

As shown in figure 1, the fixing piece 3 is arranged on the pull rod 1 in a screwing mode, and the structure is convenient and the operation is simple.

The utility model provides a dismantlement instrument can be succinct, quick installation, safe, labour saving and time saving's completion reciprocating pump plunger filler group's dismantlement work, and the reciprocating pump plunger filler group that is applicable to various models dismantles simultaneously to high-pressure, large-traffic reciprocating pump, has greatly improved work efficiency, solves the problem that reciprocating pump plunger filler group among the prior art is difficult to the dismantlement.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical concept scope of the present invention, it can be right to perform multiple simple variants according to the technical solution of the present invention, and these simple variants and combinations should be considered as the disclosed content of the present invention, all belonging to the protection scope of the present invention.

It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be arbitrarily combined with each other, and the disclosed content of the present invention should be considered as the same as long as it does not violate the idea of the present invention.

Claims

1. The utility model provides a extracting tool for high-pressure reciprocating pump, its characterized in that, high-pressure reciprocating pump includes crank link mechanism, with crank link mechanism interval set up be equipped with central through-hole stuffing box (8) and inlay stuffing box (10) on stuffing box (8) inner wall, extracting tool is including passing pull rod (1) and the setting of through-hole on stuffing box (8) are in baffle (2) on pull rod (1), baffle (2) can set up stuffing box (10) are kept away from crank link mechanism's one end, pull rod (1) can connect in crank link mechanism, with pass through baffle (2) drive stuffing box (10) for stuffing box (8) remove.

2. The disassembly tool for a high-pressure reciprocating pump according to claim 1, wherein the baffle plate (2) is a circular plate, the diameter of the baffle plate (2) being larger than the inner diameter of the packing set (10) and smaller than the outer diameter of the packing set (10).

3. A dismounting tool for a high pressure reciprocating pump according to claim 2, further comprising a connector (5) arranged at an end of the drawbar (1) near the crank-link mechanism, the connector (5) being detachably arranged on a crosshead connecting rod (4) on the crank-link mechanism.

4. A dismounting tool for a high-pressure reciprocating pump according to claim 3, characterized in that the connecting piece (5) comprises a base connected to the tie rod (1) and a connecting portion projecting towards the crank linkage in relation to the base, which connecting portion is provided with an external thread matching an internal thread on the crosshead connecting rod (4).

5. The disassembling tool for the high-pressure reciprocating pump according to claim 4, characterized in that the base of the connecting piece (5) is provided with a screw hole, and the pull rod (1) is provided with an external thread matched with the screw hole.

6. A dismounting tool for a high pressure reciprocating pump according to claim 5, characterized in that the base of the connecting piece (5) is provided with a raised power assisting structure on its outer circumference.

7. The disassembly tool for a high-pressure reciprocating pump according to claim 6, wherein the base of the connecting piece (5) is provided on its outer peripheral surface with at least one pair of circular holes (7) and a round bar that can be inserted into the circular holes (7).

8. The disassembling tool for the high-pressure reciprocating pump according to claim 1, further comprising a fixing member (3) disposed at an end of the pull rod (1) far away from the crank link mechanism, wherein the baffle plate (2) is slidably sleeved on the pull rod (1), and the baffle plate (2) can be pressed on the packing set (10) through the fixing member (3).

9. The disassembly tool for a high-pressure reciprocating pump according to claim 8, further comprising an adjustment sleeve (6) arranged between the fixing member (3) and the baffle plate (2), wherein the adjustment sleeve (6) can be sleeved on the pull rod (1).

10. The disassembling tool for the high-pressure reciprocating pump according to claim 9, characterized in that the fixing member (3) is a nut, and the outer circumference of the end of the pull rod (1) far away from the crank link mechanism is provided with an external thread matched with the nut.