Press fitting tool for taper pipe of end cover

Abstract

The utility model relates to the technical field of compressor press-fitting tools, in particular to an end cover taper pipe press-fitting tool which comprises an end cover body, a press-fitting auxiliary tool and an O-shaped elastic sealing ring, a press-fitting space is vertically formed in the end cover body, a taper pipe body is placed in the press-fitting space, the lower end of the press-fitting auxiliary tool abuts against the upper end of the taper pipe body, and the O-shaped elastic sealing ring is arranged in the press-fitting space. The upper end of the press-fitting assistive device extends upwards out of the top of the end cover body, the side face of the press-fitting assistive device is in clearance fit with the inner wall of the press-fitting space, an annular groove is formed in the circumferential side face of the press-fitting assistive device, an O-shaped elastic sealing ring is arranged in the annular groove, and the outer side face of the O-shaped elastic sealing ring is in contact fit with the inner wall of the press-fitting space. According to the utility model, the taper pipe can be prevented from deviating, so that the material extrusion phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor press-fitting tooling, in particular to an end cover cone tube press-fitting tooling. Background Art

[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. It draws in low-temperature, low-pressure refrigerant gas from the intake pipe, compresses it by driving the scroll disk through the motor, and then discharges high-temperature, high-pressure refrigerant gas to the exhaust pipe, providing power for the refrigeration cycle.

[0003] In electric compressors, the tapered tube on the end cover serves to separate oil and gas. Due to compressor installation and functional constraints, the tube is typically located approximately 15 mm inside the end cover's exhaust port, with a significant interference fit. Using traditional press-fit solutions, the tube's internal placement without a guide makes it prone to misalignment. This can lead to material extrusion from the inner wall of the end cover after press-fitting, expelling numerous aluminum chips. To address this issue, a press-fit tool for the tapered tube in the end cover was designed to prevent misalignment and the resulting extrusion. Utility Model Content

[0004] In order to solve the problems in the background technology, the present invention proposes a press-fitting tool for an end cover cone tube, which can prevent the cone tube from deflecting and thus avoid the phenomenon of material extrusion.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: an end cover cone tube pressing tool, comprising an end cover body, a pressing aid and an O-type elastic sealing ring, a pressing space is vertically opened in the end cover body, the pressing space is used to place the cone tube body, the lower end of the pressing aid is abutted against the upper end of the cone tube body, the upper end of the pressing aid extends upward from the top of the end cover body, the side surface of the pressing aid is gap-matched with the inner wall of the pressing space, an annular groove is opened on the circumferential side of the pressing aid, the O-type elastic sealing ring is arranged in the annular groove, and the outer side surface of the O-type elastic sealing ring is in contact with the inner wall of the pressing space.

[0006] Furthermore, the press-fitting aid includes a pressing head portion, a limiting portion, a mounting portion and a connecting portion which are sequentially connected from top to bottom, the pressing head portion and the limiting portion are both located outside the press-fitting space, and the cross-sectional size of the limiting portion is larger than the caliber of the press-fitting space, the mounting portion and the connecting portion can extend into the press-fitting space, the annular groove is provided on the circumferential side surface of the mounting portion, and the connecting portion abuts against the conical tube body.

[0007] Furthermore, the cross-sectional diameter of the mounting portion is larger than the cross-sectional diameter of the connecting portion, and the connecting end of the mounting portion and the connecting portion is provided with a conical chamfer.

[0008] Furthermore, the top surface of the pressure head is configured as an arc surface.

[0009] Furthermore, the O-type elastic sealing ring is made of rubber.

[0010] The beneficial effects of the present invention are as follows: the present invention provides an annular groove on the circumferential side of the press-fitting tool and arranges an O-type elastic sealing ring in the annular groove. When the tool is placed in the press-fitting space of the end cover body, the O-type elastic sealing ring contacts the top opening of the end cover body, and the lower end of the press-fitting tool can press-fit the cone tube body to straighten it, and the press machine presses down so that the cone tube body can be pressed down vertically. Compared with the traditional press-fitting tool, since the cone tube is located inside the end cover and is placed without a guide, the cone tube is deflected when placed, resulting in the defect of material extrusion on the inner wall of the rear end cover during press-fitting and the extrusion of aluminum chips, the present invention can prevent the cone tube body from deflecting and avoid material extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 for Figure 1 A partial enlarged view of point Ⅰ;

[0014] Figure 3 is a cross-sectional view of the end cover body;

[0015] Figure 4 It is a schematic diagram of the connection structure between the press-fitting tool and the cone tube body.

[0016] 1. End cap body; 2. Press-fitting aid; 3. O-ring; 4. Press-fitting space; 5. Conical tube body; 6. Annular groove; 7. Pressing head; 8. Limiting part; 9. Mounting part; 10. Connecting part. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The present invention provides an annular groove 6 on the circumferential side of the press-fitting tool 2 and arranges an O-type elastic sealing ring 3 in the annular groove 6. When the tool is placed in the press-fitting space 4 of the end cap body 1, the O-type elastic sealing ring 3 contacts the top opening of the end cap body 1, and the lower end of the press-fitting tool 2 can press-fit the conical tube body 5 and straighten it. The downward pressure of the press machine enables the conical tube body 5 to be pressed vertically downward. Compared with the traditional press-fitting tool, since the conical tube is located inside the end cap and is placed without a guide, the conical tube will be deflected when placed, resulting in the defect of material extrusion and aluminum chips being pressed out of the inner wall of the rear end cap during press-fitting. The present invention can prevent the conical tube body 5 from deflecting and avoid material extrusion.

[0019] Specifically, such as Figures 1 to 4 As shown, a press-fitting tool for an end cover cone tube comprises an end cover body 1, a press-fitting aid 2 and an O-type elastic sealing ring 3. A press-fitting space 4 is vertically opened in the end cover body 1, and the press-fitting space 4 is used to place the cone tube body 5. The lower end of the press-fitting aid 2 abuts against the upper end of the cone tube body 5, and the upper end of the press-fitting aid 2 extends upward from the top of the end cover body 1. The side surface of the press-fitting aid 2 is gap-fitted with the inner wall of the press-fitting space 4. An annular groove 6 is opened on the circumferential side surface of the press-fitting aid 2, and the O-type elastic sealing ring 3 is arranged in the annular groove 6. The outer side surface of the O-type elastic sealing ring 3 contacts and fits with the inner wall of the press-fitting space 4.

[0020] Furthermore, the pressing aid 2 includes a pressing head 7, a limiting portion 8, a mounting portion 9 and a connecting portion 10 which are sequentially connected from top to bottom. The pressing head 7 and the limiting portion 8 are both located outside the pressing space 4, and the cross-sectional size of the limiting portion 8 is larger than the diameter of the pressing space 4. The mounting portion 9 and the connecting portion 10 can extend into the pressing space 4. The annular groove 6 is provided on the circumferential side of the mounting portion 9, and the connecting portion 10 abuts against the conical tube body 5.

[0021] Furthermore, the cross-sectional diameter of the mounting portion 9 is larger than the cross-sectional diameter of the connecting portion 10 , and the connecting end of the mounting portion 9 and the connecting portion 10 is provided with a conical chamfer.

[0022] Furthermore, the top surface of the pressing head 7 is configured as an arc surface.

[0023] Furthermore, the O-type elastic sealing ring 3 is made of rubber.

[0024] When the present invention is in use, an annular groove 6 is formed on the circumferential side of the press-fitting tool 2, and an O-type elastic sealing ring 3 is arranged in the annular groove 6. When the tool is placed in the press-fitting space 4 of the end cap body 1, the O-type elastic sealing ring 3 contacts the top opening of the end cap body 1, and the lower end of the press-fitting tool 2 can press-fit the cone tube body 5 and straighten it. The press machine presses down so that the cone tube body 5 can be pressed down vertically. Compared with the traditional press-fitting tool, since the cone tube is located inside the end cap and is placed without a guide, the cone tube is deflected when placed, resulting in the defect of material extrusion on the inner wall of the rear end cap during press-fitting and the extrusion of aluminum chips, the present invention can prevent the cone tube body 5 from deflecting and avoid material extrusion.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A press-fitting tool for an end cap and a tapered tube, characterized by: The invention comprises an end cover body (1), a pressing tool (2) and an O-type elastic sealing ring (3); a pressing space (4) is vertically opened in the end cover body (1); the pressing space (4) is used to place the cone tube body (5); the lower end of the pressing tool (2) abuts against the upper end of the cone tube body (5); the upper end of the pressing tool (2) extends upward from the top of the end cover body (1); the side surface of the pressing tool (2) is gap-matched with the inner wall of the pressing space (4); an annular groove (6) is opened on the circumferential side surface of the pressing tool (2); the O-type elastic sealing ring (3) is arranged in the annular groove (6); the outer side surface of the O-type elastic sealing ring (3) contacts and matches the inner wall of the pressing space (4).

2. The end cap tapered tube press-fitting tool according to claim 1, characterized in that: The pressing aid (2) comprises a pressing head portion (7), a limiting portion (8), a mounting portion (9) and a connecting portion (10) which are sequentially connected from top to bottom. The pressing head portion (7) and the limiting portion (8) are both located outside the pressing space (4), and the cross-sectional dimension of the limiting portion (8) is larger than the diameter of the pressing space (4). The mounting portion (9) and the connecting portion (10) can extend into the pressing space (4). The annular groove (6) is provided on the circumferential side surface of the mounting portion (9), and the connecting portion (10) abuts against the conical tube body (5).

3. The end cap tapered tube press-fitting tool according to claim 2, characterized in that: The cross-sectional diameter of the mounting portion (9) is larger than the cross-sectional diameter of the connecting portion (10), and the connecting ends of the mounting portion (9) and the connecting portion (10) are provided with conical chamfers.

4. The end cap tapered tube press-fitting tool according to claim 2, characterized in that: The top surface of the pressure head (7) is configured as an arc surface.

5. The end cap tapered tube press-fitting tool according to any one of claims 1 to 4, characterized in that: The O-type elastic sealing ring (3) is made of rubber.

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