Check ring assembly tool for reverse hole

Abstract

The utility model belongs to the technical field of compressor assembly auxiliary tools, and particularly discloses a check ring assembly tool for a reverse hole, which is characterized in that a guide seat is vertically arranged on the surface of a base; the sleeve is provided with a cavity of which the inner diameter is gradually increased from the top end to the bottom end; the sleeve is movably sleeved in the guide seat through the cavity, and the sleeve and the guide seat are coaxial; the guide seat is exposed out of the sleeve; the sleeve is provided with a first bearing table matched with the shaft seal cover, and the first bearing table bears the shaft seal cover and limits the shaft seal cover with the guide seat; the sleeve is provided with a second bearing table matched with the check ring for the reverse hole, and the second bearing table bears the check ring for the reverse hole and limits the check ring for the reverse hole with the guide base. And the press-fitting structure is used for driving the shaft seal cover to move towards the check ring for the reverse hole, so that the check ring for the reverse hole is mounted in the shaft seal cover. According to the utility model, the operation force is reduced, and meanwhile, the check ring for the reverse hole and the shaft seal cover are borne and limited, so that the check ring for the reverse hole is accurately assembled, and the assembling quality of the check ring for the reverse hole is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressor assembly auxiliary tools, and particularly relates to an assembly tool for a reverse hole retaining ring. Background Art

[0002] The compressor counter-hole retaining ring is installed on the compressor shaft seal cover groove shaft to fix the axial movement of the parts. The counter-hole retaining ring needs to fit tightly to the inner wall of the groove shaft during assembly and should not be loose or twisted.

[0003] Assembly of a counter-hole retaining ring involves installing it into a slotted shaft. Typically, the outer diameter of the counter-hole retaining ring is slightly larger than the diameter of the mounting slotted shaft. Circlip pliers are used for installation. The jaws of the circlip pliers are inserted into the retaining ring's opening, clamped, and then placed into the pre-machined shaft seal cover slotted shaft. The pliers are used to assemble the retaining ring, pressing down and twisting it around the shaft's perimeter until it is fully enclosed. This requires considerable manual force, and the retaining ring can be difficult to align and assemble, making assembly challenging. Utility Model Content

[0004] The utility model aims to provide an assembly tool for a counter-hole retaining ring, which can be used to quickly and labor-savingly install the counter-hole retaining ring in the groove shaft of a shaft seal cover, thereby improving the installation quality.

[0005] The purpose of the utility model is achieved through such a technical solution, a reverse hole retaining ring assembly tool, comprising:

[0006] A base, the surface of which is vertically provided with a guide seat;

[0007] The sleeve is provided with a cavity with an inner diameter gradually increasing from the top end to the bottom end; the sleeve is movably sleeved in the guide seat through the cavity, and the sleeve and the guide seat are coaxial; the guide seat is exposed on the sleeve; the sleeve is provided with a first bearing platform adapted to the shaft seal cover, the first bearing platform carries and limits the shaft seal cover with the guide seat; the sleeve is provided with a second bearing platform adapted to the counter-hole retaining ring, the second bearing platform carries and limits the counter-hole retaining ring with the guide seat;

[0008] The press-fit structure is used to drive the shaft seal cover to move toward the counter-hole retaining ring so that the counter-hole retaining ring is installed in the shaft seal cover.

[0009] Preferably, the slope of the cavity is 3-12°.

[0010] Preferably, it includes several guide shafts, a third bearing platform and a buffer spring, one end of the guide shaft is installed on the base, the other end of the guide shaft is sleeved on the third bearing platform, the buffer spring is sleeved on the guide shaft, and the two ends of the buffer spring are respectively in contact with the base and the third bearing platform.

[0011] Preferably, the press-fitting structure includes a press-fitting frame, a driving source and a pressing head. The press-fitting frame is fixedly mounted on the base, the driving source is mounted on the press-fitting frame, the output end of the driving source is connected to the pressing head, an extension portion is provided on the top of the guide seat, and the pressing head is provided with a through hole that matches the extension portion.

[0012] Preferably, the press-fitting structure includes a press-fitting frame, a driving source and a pressing head. The press-fitting frame is fixedly mounted on the base, the driving source is mounted on the press-fitting frame, the output end of the driving source is connected to the pressing head, an extension portion is provided on the top of the guide seat, and the pressing head is provided with a through hole that matches the extension portion.

[0013] Preferably, a limiting column is provided on the base, which is detachably mounted on the base and is located below the pressure head to limit the downward movement of the pressure head.

[0014] Preferably, the extension portion is a cylinder adapted to the shaft hole of the shaft seal cover, the top of the cylinder is frustum-shaped, and the pressure head is provided with a through hole matched with the cylinder.

[0015] Preferably, a protective layer is provided on the end surface of the pressure head facing the shaft seal cover.

[0016] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0017] The utility model discloses a tool for installing a reverse hole retaining ring, which includes a guide column and a sleeve, wherein the cavity of the sleeve is a cone-shaped device that is smaller at the top and larger at the bottom. During assembly, the reverse hole retaining ring is placed on the second bearing platform, and then the sleeve is placed on the upper part of the reverse hole retaining ring from top to bottom. The shaft seal cover is placed upside down on the first bearing platform, and the press-fitting structure is activated. The shaft seal cover and the sleeve are pressed down together. When pressing down, the reverse hole retaining ring is gathered together until the sleeve is pressed to the bottom. The reverse hole retaining ring is then separated from the sleeve and rebounds to be fixed on the slot of the shaft seal cover. Therefore, the utility model does not need to use circlip pliers to clamp the reverse hole retaining ring, which reduces the operating force and greatly reduces the labor intensity. At the same time, due to the use of the first bearing platform, the second bearing platform and the guide column, the reverse hole retaining ring and the shaft seal cover are supported and limited, so that the reverse hole retaining ring can be accurately assembled, thereby improving the assembly quality of the reverse hole retaining ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 This is a structural diagram of a reverse hole retaining ring assembly tooling of the utility model;

[0020] Figure 2 This is an exploded schematic diagram of the assembly tool for the counter-hole retaining ring;

[0021] Figure 3A is an enlarged schematic diagram;

[0022] Figure 4 Schematic diagram of the structure of the sleeve.

[0023] Reference numerals:

[0024] 1-base, 11-guide seat, 111-extension part, 112-cylinder, 113-cone, 12-limiting column, 2-sleeve, 21-cavity, 22-first bearing platform, 23-second bearing platform, 24-guide structure, 241-guide shaft, 242-third bearing platform, 243-buffer spring, 244-first through hole, 3-pressing structure, 31-pressing frame, 311-second through hole, 32-driving source, 33-pressing head, 331-through hole, 332-protective layer, 4-shaft sealing cover, 5-retaining ring for counter hole. DETAILED DESCRIPTION

[0025] See also Figure 1 、 Figure 2 and Figure 4 A reverse hole retaining ring assembly tool includes: a base 1, a sleeve 2 and a press-fit structure 3.

[0026] A guide seat 11 is provided vertically on the surface of the base 1. The sleeve 2 is provided with a cavity 21 whose inner diameter gradually increases from the top to the bottom; the sleeve 2 is movably sleeved in the guide seat 11 through the cavity 21, the sleeve 2 is coaxial with the guide seat 11, and the guide seat 11 is exposed from the sleeve 2. The sleeve 2 is provided with a first bearing platform 22 adapted to the shaft seal cover 4, the first bearing platform 22 bears and limits the shaft seal cover 4 with the guide seat 11; the sleeve 2 is provided with a second bearing platform 23 adapted to the anti-hole retaining ring 5, the second bearing platform 23 bears and limits the anti-hole retaining ring 5 with the guide seat 11. The press-fitting structure 3 is used to drive the shaft seal cover 4 to move toward the anti-hole retaining ring 5, so that the anti-hole retaining ring 5 is installed in the shaft seal cover 4. Specifically, the base 1 is installed on the workbench, the guide seat 11 is a cylinder, and the guide seat 11 is fixedly installed on the surface of the base 1. The sleeve 2 is cylindrical in shape as a whole, and has a conical cavity 21 inside that is smaller at the top and larger at the bottom. In order to facilitate the operation of the sleeve 2 by hand, knurling is provided on the outer wall of the sleeve 2 to increase the friction when held by hand. The first bearing platform 22 and the second bearing platform 23 are integrally formed in a step shape, and the second bearing platform 23 is above the first bearing platform 22. The outer diameter of the second bearing platform 23 matches the anti-hole retaining ring 5, and the anti-hole retaining ring 5 is placed on the second bearing platform 23. The guide seat 11 limits the axial displacement of the anti-hole retaining ring 5 so that the anti-hole retaining ring 5 remains stationary after being placed. The bearing surface of the first bearing platform 22 matches the shaft seal cover 4 so that it can contact the inner wall of the shaft seal cover 4 over a large area. The guide seat 11 limits the axial displacement of the shaft seal cover 4 so that the shaft seal cover 4 remains stationary after being placed. Preferably, the inclination of the cavity 21 is 3-12°.

[0027] The utility model is a tool for assembling a reverse hole retaining ring. During assembly, the reverse hole retaining ring 5 is placed on the second bearing platform 23, the shaft seal cover 4 is placed upside down on the first bearing platform 22, the press-fitting structure 3 is started, and the shaft seal cover 4 and the sleeve 2 are pressed down together. Since the sleeve 2 is tapered at the top and the bottom, the reverse hole retaining ring 5 is gathered together during the downward pressing. When the sleeve 2 is pressed to the bottom, the reverse hole retaining ring 5 is separated from the sleeve 2 and rebounds to be fixed on the slot of the shaft seal cover 4. The use of the reverse hole retaining ring assembly tool avoids manual assembly, allowing workers to assemble easily. By setting limit positions on the guide seat 11 and the sleeve 2, the reverse hole retaining ring 5 can be accurately assembled, thereby improving the assembly quality of the reverse hole retaining ring 5.

[0028] See also Figure 1 and Figure 3 Furthermore, the sleeve 2 also includes a guide structure 24, including a plurality of guide shafts 241, a third bearing platform 242 and a buffer spring 243. One end of the guide shaft 241 is mounted on the base 1, and the other end of the guide shaft 241 is sleeved on the third bearing platform 242. The buffer spring 243 is sleeved on the guide shaft 241, and the two ends of the buffer spring 243 are respectively in contact with the base 1 and the third bearing platform 242. Specifically, the bottom end of the shaft seal cover 4 is in contact with the surface of the third bearing platform 242, and the third bearing platform 242 and the guide seat 11 provide secondary position limiting for the shaft seal cover 4. The third bearing platform 242 is provided with a first through hole 244 corresponding to the guide shaft 241, and a guide shaft 241 is slidably inserted into the interior of each first through hole 244, and a nut is threadedly connected to the top end of the guide shaft 241. Preferably, four groups of guide shafts 241 are provided. With this structure, when the shaft seal cover 4 is pressed down by the press-fitting structure 3, the third support platform 242 supporting it moves downward along the guide shaft 241, so as to prevent the shaft seal cover 4 from shaking when pressed down and affecting the assembly quality. Moreover, after the force is eliminated, the buffer spring 243 restores its deformation and drives the third support platform 242 to return to its original position, so as to facilitate the next press-fitting.

[0029] See also Figure 1 and Figure 2Furthermore, the press-fitting structure 3 includes a press-fitting frame 31, a driving source 32 and a pressing head 33. The press-fitting frame 31 is fixedly mounted on the base 1, the driving source 32 is mounted on the press-fitting frame 31, the output end of the driving source 32 is connected to the pressing head 33, an extension portion 111 is provided at the top of the guide seat 11, and the pressing head 33 is provided with a through hole 331 that matches the extension portion 111. Specifically, the press-fitting frame 31 is vertically fixed to the surface of the base 1 by bolts, the press-fitting frame 31 is provided with a second through hole 311, the pressing head 33 is T-shaped, and one end of the pressing head 33 is connected to the output end of the driving source 32 through the second through hole 311. The extension portion 111 is provided with a cylinder 112 that is compatible with the shaft hole of the shaft seal cover 4, the top of the cylinder 112 is a frustum 113, and the pressing head 33 is provided with a through hole 331 that matches the cylinder 112. The frustum 113 is provided to facilitate the pressing head 33 to enter the extension portion 111. Preferably, the driving source 32 is a cylinder, and the stroke of the cylinder, that is, the downward displacement, can be calculated in advance to ensure that the counter-hole retaining ring 5 is completely pressed into the shaft sealing cover 4, and the consistency of product quality is good.

[0030] See also Figure 1 Furthermore, a limiting post 12 is provided on the base 1. The limiting post 12 is detachably mounted on the base 1 and is positioned below the pressure head 33 to limit the downward movement of the pressure head 33. Specifically, the base 1 has a threaded hole, and the limiting post 12 has an external thread corresponding to the threaded hole. The limiting post 12 is fixedly mounted on the base 1 through the threaded engagement. The height of the limiting post 12 can be adjusted by adjusting the threaded hole, thereby adapting to different downward pressure requirements.

[0031] See also Figure 1 Furthermore, in order to prevent the pressure head 33 from rigidly contacting the shaft seal cover 4, a protective layer 332 is provided on the end surface of the pressure head 33 facing the shaft seal cover 4, thereby protecting the shaft seal cover 4 from being operated. Preferably, the protective layer 332 is hard rubber.

[0032] Since the utility model's anti-hole retaining ring installation tool includes a guide column 11, a sleeve 2, a press-fitting structure 3 with a cylinder as a driving source 32, and a guide structure 24, wherein the cavity 21 of the sleeve 2 is a conical shape with a small top and a large bottom; during assembly, the anti-hole retaining ring 5 is placed on the second bearing platform 23, and the shaft seal cover 4 is placed upside down on the first bearing platform 22. At the same time, the third bearing platform 242 secondary supports and limits the bearing cover 4, and the press-fitting structure 3 is started, and the shaft seal cover 4 and the sleeve 2 are pressed down together. When pressing down, the anti-hole retaining ring 5 is gathered together until the sleeve 2 is pressed to the bottom, and the anti-hole retaining ring 5 is separated from the sleeve 2 and rebounds to be fixed on the slot of the shaft seal cover 4. Therefore, the utility model does not need to manually install the anti-hole retaining ring 5, which reduces the operating force and greatly reduces the labor intensity. At the same time, the first bearing platform 22 and the second bearing platform 23 and the guide column 11 are used to support and limit the reverse hole retaining ring 5 and the shaft seal cover 4, and the guide structure 24 is used to accurately assemble the reverse hole retaining ring 5, thereby improving the assembly quality of the reverse hole retaining ring 5.

[0033] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above is only a specific implementation method of the utility model and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the scope of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A tool for assembling a retaining ring for a reverse hole, characterized in that: include: A base (1) has a guide seat (11) vertically provided on its surface; The sleeve (2) is provided with a cavity (21) whose inner diameter gradually increases from the top end to the bottom end; the sleeve (2) is movably sleeved in the guide seat (11) through the cavity (21), and the sleeve (2) and the guide seat (11) are coaxial; the guide seat (11) is exposed outside the sleeve (2); the sleeve (2) is provided with a first bearing platform (22) adapted to the shaft seal cover 4, and the first bearing platform (22) bears and limits the shaft seal cover (4) with the guide seat (11); the sleeve (2) is provided with a second bearing platform (23) adapted to the anti-hole retaining ring (5), and the second bearing platform (23) bears and limits the anti-hole retaining ring (5) with the guide seat (11); The press-fitting structure (3) is used to drive the shaft sealing cover (4) to move toward the counter-hole retaining ring (5), so that the counter-hole retaining ring (5) is installed in the shaft sealing cover (4).

2. The assembly tool for the reverse hole retaining ring according to claim 1, characterized in that: The inclination of the cavity (21) is 3-12°.

3. The assembly tool for the reverse hole retaining ring according to claim 1 or 2, characterized in that: The sleeve (2) further includes a guide structure (24), which includes a plurality of guide shafts (241), a third bearing platform (242) and a buffer spring (243). One end of the guide shaft (241) is mounted on the base (1), and the other end of the guide shaft (241) is sleeved on the third bearing platform (242). The buffer spring (243) is sleeved on the guide shaft (241), and the two ends of the buffer spring (243) are respectively in contact with the base (1) and the third bearing platform (242).

4. The assembly tool for the reverse hole retaining ring according to claim 1 or 2, characterized in that: The press-fitting structure (3) comprises a press-fitting frame (31), a driving source (32) and a pressing head (33); the press-fitting frame (31) is fixedly mounted on the base (1); the driving source (32) is mounted on the press-fitting frame (31); the output end of the driving source (32) is connected to the pressing head (33); an extension portion (111) is provided on the top of the guide seat (11); and the pressing head (33) is provided with a through hole (331) that matches the extension portion (111).

5. The assembly tool for the reverse hole retaining ring according to claim 3, characterized in that: The press-fitting structure (3) comprises a press-fitting frame (31), a driving source (32) and a pressing head (33); the press-fitting frame (31) is fixedly mounted on the base (1); the driving source (32) is mounted on the press-fitting frame (31); the output end of the driving source (32) is connected to the pressing head (33); an extension portion (111) is provided on the top of the guide seat (11); and the pressing head (33) is provided with a through hole (331) that matches the extension portion (111).

6. The assembly tool for the reverse hole retaining ring according to claim 4, characterized in that: A limiting column (12) is provided on the base (1). The limiting column (12) is detachably mounted on the base (1) and is located below the pressure head (33) to limit the downward movement of the pressure head (33).

7. The assembly tool for the reverse hole retaining ring according to claim 5 or 6, characterized in that: The extension portion (111) is a cylinder (112) adapted to the shaft hole of the shaft seal cover (4). The top of the cylinder (112) is in the shape of a truncated cone (113). The pressure head (33) is provided with a through hole (331) matched with the cylinder (112).

8. The assembly tool for the reverse hole retaining ring according to claim 7, characterized in that: A protective layer (332) is provided on the end surface of the pressure head (33) facing the shaft seal cover (4).

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