Reciprocating compressor air valve dismounting tool

Abstract

Compared with the prior art, the reciprocating compressor air valve dismounting tool has the advantages that the connecting rod can rotate relative to the connecting sleeve around the axis of the connecting rod, and when the reciprocating compressor air valve dismounting tool is used, the connecting rod can be conveniently rotated to enable the threaded end of the end of the connecting rod to be in threaded connection with the valve body; therefore, the problem that in the prior art, threaded connection between a lifting rod and a valve body is inconvenient is solved, use is more convenient, the lifting device comprises a jacking piece and the lifting rod connected with the jacking piece, the lifting rod comprises a connecting sleeve connected with the jacking piece and a connecting rod which is coaxially arranged and rotationally matched with the connecting sleeve, and the end, away from the jacking piece, of the connecting rod is provided with a threaded end. The connecting sleeve is provided with a supporting face facing the jacking piece, the other end, penetrating through the supporting face, of the connecting rod is provided with a limiting face, and the limiting face is arranged facing the supporting face.

Description

TECHNICAL FIELD

[0001] The utility model relates to compressor maintenance technical field especially reciprocating compressor air valve dismounting tool. BACKGROUND

[0002] In order to guarantee the normal work of reciprocating compressor, need to maintain and repair periodically to compressor, when dismounting air valve, due to the deformation of internal gasket, air valve is jammed when dismounting, leading to air valve being difficult to dismount, in response to the problem, maintenance personnel will adopt auxiliary tool to assist dismounting.

[0003] At present, commonly used air valve auxiliary dismounting work includes inertia pulling and mechanical pulling, when inertia pulling, connecting rod is connected with air valve thread, connecting rod is slidably provided with inertia piece, and workers provide pulling force to air valve by moving inertia piece and using inertia of inertia piece, while mechanical pulling is that pull rod is connected with valve body thread, and valve body is pulled out by providing mechanical jacking force to pull rod by jacking device, and the pulling force of dismounting tool of mechanical pulling is more linear than that of inertia pulling, and the operation safety is high, so the mechanical pulling is widely applied.

[0004] For example, the Chinese utility model patent with application number 2021220813537 discloses a reciprocating compressor air valve special tool, referring to Figure 1 which comprises a jacking part 1, a first upper arm 2, a second upper arm 2', a pin 3, a first lower arm 4, a second lower arm 4', a lead screw 5, a lifting rod 6, a base part 7, and a hand wheel 8, wherein the first upper arm 2 and the second upper arm 2' are connected with the jacking part 1 through a column pin, the first lower arm 4 and the second lower arm 4' are connected with the base part 7 through a column pin, the first upper arm 2 is connected with the first lower arm 4 by using a pin 3, the first upper arm 2' is connected with the first lower arm 4 by using another pin 3, the lead screw 5 is connected with the two pins 3 through threads, and the hand wheel 8 is installed at one end of the lead screw 5, the lifting rod 6 is connected with the valve body, the base part 7 is fixed with the cylinder, then the jacking part is provided with jacking force by rotating the hand wheel to pull the lifting rod 6 to provide pulling force to the valve body, so that the valve body is pulled out, but since the lead screw passes through the lifting rod slot on the lifting rod, the lifting rod cannot rotate around its own axis, so when the lifting rod is connected with the valve body through threads, the whole tool needs to be rotated to drive the lifting rod to rotate around the axis to connect the lifting rod 6 with the valve body through threads, which is not convenient to use and has room for improvement. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above problems and provides a reciprocating compressor air valve dismounting tool which can automatically bind objects and does not need manual film cutting during binding, and the internal film port is not easily exposed during binding, thereby ensuring the binding quality.

[0006] In order to realize the above-mentioned purpose, the technical scheme of the utility model is: reciprocating compressor air valve dismounting tool, including jacking piece and the lifting rod connected with jacking piece, the lifting rod includes the connecting sleeve connected with jacking piece and the connecting rod coaxially arranged and rotationally cooperated with connecting sleeve, the end of connecting rod away from jacking piece is provided with threaded end, connecting sleeve is provided with the support surface facing jacking piece, the other end of connecting rod passing through support surface is provided with limit surface, the limit surface is provided facing support surface.

[0007] Further, the connecting rod and the connecting sleeve are axially slidingly guided.

[0008] Further, the end of the connecting sleeve away from the jacking piece is coaxially provided with a guide sleeve, the connecting rod and the guide sleeve are insertedly guided, the end of the connecting rod extending out of the guide sleeve is provided with a rigid plate, the limit surface is the plate surface of the rigid plate, and the support surface is the end surface of the guide sleeve.

[0009] Further, the end of the connecting rod is coaxially provided with a screw rod, a nut is threadedly connected on the screw rod, and the rigid plate is sleeved on the screw rod and located between the nut and the end surface of the connecting rod.

[0010] Further, the end of the guide sleeve is integrally provided with a first flange plate, and the end of the connecting sleeve is provided with a second flange plate detachably connected with the first flange plate.

[0011] Further, the end of the connecting sleeve away from the first flange plate is closed.

[0012] Further, the lifting rod includes a connecting piece, a first rod connected with the connecting piece, and two pull bars connected to the end of the first rod, the connecting sleeve is arranged at the end of the two pull bars, the connecting piece is rotationally connected with the jacking piece through a connecting pin, and the axis of the connecting pin is perpendicular to the axis of the first rod.

[0013] Compared with the prior art, the reciprocating compressor air valve dismounting tool has the following beneficial effects: the connecting rod can rotate relative to the connecting sleeve around its own axis, which facilitates the rotation of the connecting rod to threadedly connect the threaded end of the end of the connecting rod with the valve body, thereby solving the problem of inconvenient threadedly connecting the lifting rod with the valve body in the prior art, and facilitating use, including a jacking piece and a lifting rod connected with the jacking piece, the lifting rod includes a connecting sleeve connected with the jacking piece and a connecting rod coaxially arranged and rotationally cooperated with the connecting sleeve, the end of the connecting rod away from the jacking piece is provided with a threaded end, the connecting sleeve is provided with a support surface facing the jacking piece, the other end of the connecting rod passing through the support surface is provided with a limit surface, and the limit surface is provided facing the support surface. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of a reciprocating compressor air valve special tool in the background art.

[0015] Figure 2 Structure diagram of the reciprocating compressor valve dismounting tool Figure 1 .

[0016] Figure 3 Structure diagram of the reciprocating compressor valve dismounting tool Figure 2 .

[0017] Figure 4 Structure diagram of the lifting rod and the connecting pin in the reciprocating compressor valve dismounting tool.

[0018] Figure 5 Structure diagram of the cross section of the lifting rod and the connecting pin in the reciprocating compressor valve dismounting tool.

[0019] Figure 6 Structure diagram of the reciprocating compressor valve dismounting tool Figure 5 Structure diagram of the reciprocating compressor valve dismounting tool

[0020] Figure 7 Structure diagram of the reciprocating compressor valve dismounting tool

[0021] In the figure: 1, jacking part; 11, pin shaft; 12, connecting pin; 120, catch pin; 6, lifting rod; 60, connecting rod; 601, threaded end; 602, rigid plate; 6021, limiting surface; 603, nut; 604, guide sleeve; 605, first flange plate; 6051, supporting surface; 606, bolt; 607, hexagonal prism; 608, screw rod; 61, reinforcing bar; 64, first rod; 65, connecting sleeve; 651, second flange plate; 66, connecting piece. DETAILED DESCRIPTION

[0022] The utility model will be further explained in detail in connection with the drawings. The drawings are simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the structure related to the utility model.

[0023] Please refer to 2-7, the technical scheme of the utility model is: the reciprocating compressor valve dismounting tool, including jacking part 1 and the lifting rod 6 who is connected with jacking part 1, the lifting rod 6 includes the connecting sleeve 65 who is connected with jacking part 1 and the connecting rod 60 who is coaxially arranged with connecting sleeve 65 and rotationally cooperates, the end of connecting rod 60 away from jacking part 1 is provided with threaded end 601, connecting sleeve 65 is provided with supporting surface 6051 facing jacking part 1, the other end of connecting rod 60 passing through supporting surface 6051 is provided with limiting surface 6021, and limiting surface 6021 is provided facing supporting surface 6051.

[0024] It should be noted that the reciprocating compressor valve dismounting tool provided by the application and the improved point of the special tool for the reciprocating compressor valve in the background art lie in the structure of the lifting rod 6 and the connection mode of the lifting rod 6 and the jacking piece 1, which are consistent in structure and consistent in use method. The difference lies in that the structure of the lifting rod 6 is: including a connecting sleeve 65 connected with the jacking piece 1 and a connecting rod 60 rotatably arranged on the connecting sleeve 65, the connecting sleeve 65 is limited and matched by a supporting surface 6051 and a limiting surface 6021, and can provide a force towards the jacking piece 1 to the connecting rod 60. Through this setting mode, the connecting rod 60 can rotate relative to the connecting sleeve 65 around its own axis, and in use, the threaded end 601 at the end of the connecting rod 60 is conveniently screwed with the valve body, thereby solving the problem of inconvenient screwing of the lifting rod 6 with the valve body in the prior art, and thereby facilitating use.

[0025] Further, the connecting rod 60 and the connecting sleeve 65 are axially slidingly guided and matched. Specifically, the connecting rod 60 and the connecting sleeve 65 are axially slidingly guided and matched, so that the connecting rod 60 and the connecting sleeve 65 can axially relatively displace. In this way, when the threaded end 601 is screwed with the valve body to be dismounted, the connecting rod 60 can axially displace when the threaded end 601 is screwed in the threaded hole of the valve body, which is conducive to the screwing of the threaded end 601 with the valve body.

[0026] Further, as a specific embodiment, reference is made to Figures 2-7 The connecting mode of the connecting sleeve 65 and the connecting rod 60 is that the end of the connecting sleeve 65 away from the jacking piece 1 is coaxially provided with a guide sleeve 604, the connecting rod 60 is insertedly guided and matched with the guide sleeve 604, the end of the connecting rod 60 extending out of the guide sleeve 604 is provided with a ring-shaped rigid plate 602, the limiting surface 6021 is the plate surface of the rigid plate 602, and the supporting surface 6051 is the end surface of the guide sleeve 604.

[0027] Specifically, the guide sleeve 604 is detachably fixedly connected with the lower end of the connecting sleeve 65, the internal passage of the guide sleeve 604 is coaxially arranged with the connecting sleeve 65, the connecting rod 60 is a cylindrical rod, the guide sleeve 604 is arranged in the guide sleeve 604, the rigid plate 602 is arranged at the end of the connecting rod 60 extending into the connecting sleeve 65, the rigid plate 602 can abut against the end surface of the guide sleeve 604, when the jack 1 provides a pulling force to the connecting rod 60, the force is first applied to the connecting sleeve 65, the connecting sleeve 65 is displaced, the connecting sleeve 65 pulls the guide sleeve 604 to make the supporting surface 6051 contact with the limiting surface 6021, so that the force is transmitted to the rigid plate 602, thereby pulling the connecting rod 60 to move, in this arrangement, the connecting rod 60 can move axially into the connecting sleeve 65, when the threaded end 601 of the connecting rod 60 is screwed with the valve body to be disassembled, the base part is first fixedly connected with the air cylinder, then the position of the jack 1 is adjusted by rotating the hand wheel, the threaded end 601 is contacted with the end of the threaded hole on the valve body to be disassembled, and the limiting surface 6021 of the connecting rod 60 is spaced apart from the supporting surface 6051 by a distance of 10mm-20mm, then the threaded end 601 is screwed into the threaded hole on the valve body to be disassembled by rotating the connecting rod 60, as the threaded end 601 is screwed in, the connecting rod 60 can pull the limiting surface 6021 to gradually contact with the supporting surface 6051, then the position of the jack 1 is adjusted by rotating the hand wheel to apply a pulling force to the valve body.

[0028] Further, as a specific embodiment, reference is made to Figure 6 、 Figure 7 , the end of the connecting rod 60 is coaxially provided with a screw rod 608, the screw rod 608 is threadedly connected with a nut 603, and the rigid plate 602 is sleeved on the screw rod 608 and located between the nut 603 and the end surface of the connecting rod 60. Specifically, the screw rod 608 is integrally turned with the connecting rod 60, and the rigid plate 602 is an annular member punched from a steel plate.

[0029] Further, as a specific embodiment, reference is made to Figure 6 , the end of the guide sleeve 604 is integrally formed with a first flange plate 605, and the end of the connecting sleeve 65 is provided with a second flange plate 651 detachably connected with the first flange plate 605. Specifically, in this arrangement, the first flange plate 605 and the second flange plate 651 can be fixedly connected by the bolts 606.

[0030] Further, as a preferred embodiment, the end of the connecting sleeve 65 away from the first flange plate 605 is closed. Specifically, by closing the upper end of the connecting sleeve 65, the connecting rod 60 can be limited, avoiding excessive upward movement of the connecting rod 60, and the axial length of the connecting sleeve 65 is 20mm-30mm, thereby ensuring that the connecting rod 60 has sufficient axial displacement.

[0031] Further, as a specific embodiment, the lifting rod 6 comprises a connecting piece 66, a first rod 64 connected with the connecting piece 66, and two pull bars 61 connected to the end of the first rod 64, and a connecting sleeve 65 arranged at the end of the two pull bars 61, and the connecting piece 66 is rotationally connected with the jacking member 1 through a connecting pin 12, and the axis of the connecting pin 12 is arranged perpendicularly to the axis of the first rod 64.

[0032] Specifically, referring to Figures 2-5 , two pin shafts 11 are arranged on the connecting piece 66 in an interval manner, and the two pin shafts 11 are respectively rotationally connected with the first upper arm and the second upper arm, and a connecting pin 12 is further arranged on the connecting piece 66, and the connecting pin 12 is arranged in parallel with the pin shafts 11, and the lifting rod 6 comprises the connecting piece 66 and the first rod 64 fixedly connected with the connecting piece 66, and the other end of the first rod 64 is symmetrically provided with two pull bars 61 about an axis, and the connecting sleeve 65 is arranged at the lower end of the two pull bars 61, and the gap between the two pull bars 61 is used for avoiding the cooperation with the lead screw, and the connecting piece 66 is provided with a matching hole, and the axis of the matching hole is arranged in an interval direction of the two pull bars 61 and is perpendicular to the axis of the first shaft, and the first shaft is coaxially arranged with the connecting sleeve 65, and through this arrangement, the connecting pin 12 can pass through the matching hole on the connecting piece 66, and the other end is provided with a snap pin 120 for limiting, so that the lifting rod 6 is connected and cooperated with the jacking member 1.

[0033] Specifically, a hexagonal prism 607 is further arranged at the lower end of the connecting shaft, and the hexagonal prism 607 is arranged to facilitate the cooperation of the wrench with the connecting shaft to connect and separate the threaded end 601 and the threaded hole.

[0034] Obviously, the above embodiments are only examples for clearly illustrating, and are not limitation to the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not required to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A reciprocating compressor valve removal tool comprising a jack (1) and a lifting lever (6) connected to the jack (1), characterized in that, The lifting rod (6) comprises a connecting sleeve (65) connected with the jacking part (1) and a connecting rod (60) coaxially arranged with the connecting sleeve (65) and rotationally matched, one end of the connecting rod (60) away from the jacking part (1) is provided with a threaded end (601), the connecting sleeve (65) is provided with a support surface (6051) facing the jacking part (1), the other end of the connecting rod (60) penetrating the support surface (6051) is provided with a limiting surface (6021), and the limiting surface (6021) is arranged to face the support surface (6051).

2. The reciprocating compressor valve removal tool of claim 1, wherein, The connecting rod (60) and the connecting sleeve (65) are axially slidingly guided and matched.

3. The reciprocating compressor valve removal tool of claim 2, wherein, One end of the connecting sleeve (65) away from the jacking part (1) is coaxially provided with a guide sleeve (604), the connecting rod (60) and the guide sleeve (604) are insertedly guided and matched, the end of the connecting rod (60) extending out of the guide sleeve (604) is provided with a rigid plate (602) in annular shape, the limiting surface (6021) is a plate surface of the rigid plate (602), and the support surface (6051) is an end surface of the guide sleeve (604).

4. The reciprocating compressor valve removal tool of claim 3, wherein, The end of the connecting rod (60) is coaxially provided with a screw rod (608), the screw rod (608) is threadedly connected with a nut (603), the rigid plate (602) is sleeved on the screw rod (608) and located between the nut (603) and an end surface of the connecting rod (60).

5. The reciprocating compressor valve removal tool of claim 4, wherein, The end of the guide sleeve (604) is integrally provided with a first flange plate (605), and the end of the connecting sleeve (65) is provided with a second flange plate (651) detachably connected with the first flange plate (605).

6. The reciprocating compressor valve removal tool of claim 5, wherein, The end of the connecting sleeve (65) away from the first flange plate (605) is closed.

7. The reciprocating compressor valve removal tool of claim 6, wherein, The lifting rod (6) comprises a connecting part (66), a first rod (64) connected with the connecting part (66), and two reinforcing ribs (61) connected to the end of the first rod (64), the connecting sleeve (65) is arranged at the end of the two reinforcing ribs (61), the connecting part (66) is rotationally connected with the jacking part (1) through a connecting pin (12), and the axis of the connecting pin (12) is arranged perpendicularly to the axis of the first rod (64).

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