Bushing press-fitting device

Abstract

The utility model relates to the technical field of turbocharger installation, in particular to a bushing press-fitting device. The bushing press-fitting device comprises a positioning piece, a pressing rod, an adjusting piece and an elastic piece, one end of the pressing rod penetrates through and is exposed out of the positioning piece in a sliding mode, the other end of the pressing rod is in threaded connection with the adjusting piece, the elastic piece is arranged between the positioning piece and the adjusting piece, the pressing rod is provided with a limiting part in a protruding mode, and one end of the positioning piece can abut against the limiting part. The pressing rod can drive the adjusting piece to compress the elastic piece, the adjusting piece abuts against the other end of the positioning piece, and the elastic piece always has the trend of driving the positioning piece to abut against the limiting part. By adjusting the distance between the adjusting part and the positioning part, the press-fitting height of the bushing can be controlled, the press-fitting precision of the bushing is ensured, the universality of the bushing press-fitting device is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbocharger installation, in particular to a bushing press-fitting device. Background Art

[0002] The process of pressing the bushing of the turbocharger intermediate is a key process in the installation of the turbocharger intermediate, and its pressing accuracy directly affects the function and life of the turbocharger. In the prior art, in order to ensure the pressing accuracy of the bushing and adapt to different installation heights, it is necessary to set up pressing tools of different heights, so that the staff needs to select the appropriate pressing tool from a large number of pressing tools before the operation, and also need to replace the pressing tools of different heights during the operation, which makes the work process complicated and the operation efficiency slow; more seriously, it will cause the staff to take the wrong pressing tool, resulting in unqualified bushing installation, affecting the function and service life of the turbocharger.

[0003] Therefore, a bushing press-fitting device is urgently needed to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a bushing press-fitting device, which can adjust different press-fitting heights, improve the versatility of the bushing press-fitting device, does not need to replace tools, and improves working efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A bushing pressing device includes: a positioning member, a pressure rod, an adjusting member and an elastic member, one end of the pressure rod is slidably inserted through and exposed from the positioning member, the other end of the pressure rod is threadedly connected to the adjusting member, the elastic member is arranged between the positioning member and the adjusting member, the pressure rod is convexly provided with a limiting portion, one end of the positioning member can be abutted against the limiting portion, the pressure rod can drive the adjusting member to compress the elastic member, the adjusting member abuts against the other end of the positioning member, and the elastic member always has a tendency to drive the positioning member to abut against the limiting portion.

[0007] As a preferred technical solution of the above-mentioned bushing press-fitting device, the elastic member is a spring, the elastic member is sleeved on the outer circumference of the pressure rod, and the two ends of the elastic member are respectively connected to the positioning member and the adjusting member.

[0008] As a preferred technical solution of the above-mentioned bushing pressing device, the positioning member includes a first positioning block and a second positioning block connected to each other, the first positioning block is provided with a first through hole, the second positioning block is provided with a second through hole, the first through hole is connected to the second through hole, the aperture of the first through hole is smaller than the aperture of the second through hole, a first step surface is provided between the first positioning block and the second positioning block, the first positioning block can be offset against the limiting portion, the aperture of the second through hole is larger than the outer diameter of the elastic member, and the elastic member is connected to the first step surface.

[0009] As a preferred technical solution of the above-mentioned bushing press-fitting device, the positioning member also includes at least two third positioning blocks, at least two of the third positioning blocks are evenly installed on the first positioning block along the circumferential direction, and the inner side wall of each of the third positioning blocks can be against the outer wall of the bushing.

[0010] As a preferred technical solution of the above-mentioned bushing press-fitting device, the third positioning block is provided with a positioning hole, and the positioning member further includes a top screw, and the top screw can pass through the positioning hole and abut against the bushing.

[0011] As a preferred technical solution of the above-mentioned bushing press-fitting device, the positioning hole is a threaded hole, and the top screw is threadedly connected to the third positioning block through the positioning hole.

[0012] As a preferred technical solution of the above-mentioned bushing press-fitting device, the top screw is a marble top screw.

[0013] As a preferred technical solution of the above-mentioned bushing press-fitting device, the bushing press-fitting device also includes a pressing head, and the pressing head and the positioning member are respectively connected to two ends of the pressing rod.

[0014] As a preferred technical solution of the above-mentioned bushing press-fitting device, the pressing head is provided with a mounting hole, and one end of the pressing rod is arranged in the mounting hole.

[0015] As a preferred technical solution of the above-mentioned bushing pressing device, the pressing rod includes a mounting portion and a connecting portion, the diameter of the mounting portion is smaller than the diameter of the connecting portion, a second step surface is provided between the mounting portion and the connecting portion, the diameter of the mounting portion is the same as the aperture of the mounting hole, the mounting portion is installed in the mounting hole, and the pressing head can be abutted against the second step surface, and the connecting portion is threadedly connected to the adjusting member.

[0016] Beneficial effects of the utility model:

[0017] The utility model provides a bushing press-fitting device. The bushing press-fitting device includes: a positioning member, a pressure rod, an adjusting member and an elastic member. One end of the pressure rod is slidably arranged and exposed in the positioning member, the other end of the pressure rod is threadedly connected with the adjusting member, the elastic member is arranged between the positioning member and the adjusting member, the pressure rod is convexly provided with a limiting portion, one end of the positioning member can abut against the limiting portion, the pressure rod can drive the adjusting member to compress the elastic member, the adjusting member abuts against the other end of the positioning member, and the elastic member always has a tendency to drive the positioning member to abut against the limiting portion. By adjusting the distance between the adjusting member and the positioning member, the press-fitting height of the bushing can be controlled, the press-fitting accuracy of the bushing can be ensured, the versatility of the bushing press-fitting device can be improved, and the working efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0019] Figure 1 A schematic structural diagram of a bushing press-fitting device provided in an embodiment of the utility model;

[0020] Figure 2 A structural cross-sectional view of a bushing press-fitting device provided in an embodiment of the utility model;

[0021] Figure 3 A structural cross-sectional view of a positioning member provided in an embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram of a pressure rod provided in an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Positioning member; 11. First positioning block; 111. First through hole; 12. Second positioning block; 121. Second through hole; 13. First stepped surface; 14. Third positioning block; 141. Positioning hole; 2. Press rod; 21. Limiting portion; 22. Mounting portion; 23. Connecting portion; 24. Second stepped surface; 3. Adjusting member; 4. Elastic member; 5. Press head; 51. Mounting hole. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] like Figure 1 and Figure 2 As shown, the utility model provides a bushing press-fitting device. The bushing press-fitting device comprises: a positioning member 1, a pressing rod 2, an adjusting member 3 and an elastic member 4.

[0030] One end of the pressure rod 2 is slidably inserted and exposed to the positioning member 1, and the other end of the pressure rod 2 is threadedly connected to the adjusting member 3. The elastic member 4 is arranged between the positioning member 1 and the adjusting member 3. The pressure rod 2 is provided with a convex limiter 21. One end of the positioning member 1 can abut against the limiter 21. The pressure rod 2 can drive the adjusting member 3 to compress the elastic member 4. The adjusting member 3 abuts against the other end of the positioning member 1. The elastic member 4 always has a tendency to drive the positioning member 1 to abut against the limiter 21. By adjusting the distance between the adjusting member 3 and the positioning member 1, the press-fitting height of the bushing can be controlled, the press-fitting accuracy of the bushing can be ensured, the versatility of the bushing press-fitting device can be improved, and the working efficiency can be improved.

[0031] Preferably, the elastic member 4 is a spring, which is sleeved on the outer circumference of the pressure rod 2, and the two ends of the elastic member 4 are respectively connected to the positioning member 1 and the adjusting member 3. Specifically, in this embodiment, the elastic member 4 is set as a spring, and the two ends of the spring are respectively connected to the positioning member 1 and the adjusting member 3. The spring sleeved on the outer circumference of the pressure rod 2 can compress the spring in the axial direction to prevent the spring from deflecting; and can make the positioning member 1 evenly stressed to ensure the axial movement of the positioning member 1. Of course, in some other embodiments, multiple elastic members 4 can be set, and multiple elastic members 4 are set along the outer circumference of the pressure rod 2, and the two ends of the elastic member 4 are respectively connected to the end faces of the positioning member 1 and the adjusting member 3.

[0032] Preferably, if Figure 2 and Figure 3 As shown, the positioning member 1 includes a first positioning block 11 and a second positioning block 12 which are connected to each other. The first positioning block 11 is provided with a first through hole 111, and the second positioning block 12 is provided with a second through hole 121. The first through hole 111 is connected to the second through hole 121, and the aperture of the first through hole 111 is smaller than the aperture of the second through hole 121. A first step surface 13 is provided between the first positioning block 11 and the second positioning block 12. The first positioning block 11 can be abutted against the limiting portion 21, and the aperture of the second through hole 121 is larger than the outer diameter of the elastic member 4, and the elastic member 4 is connected to the first step surface 13. Specifically, the positioning member 1 includes a first positioning block 11 and a second positioning block 12, both of which are cylindrical structures. The first positioning block 11 is coaxially connected to the second positioning block 12, the first positioning block 11 has a first through hole 111, and the second positioning block 12 has a second through hole 121. The first through hole 111 is coaxially connected to the second through hole 121, the aperture of the first through hole 111 is smaller than the aperture of the second through hole 121, and a first step surface 13 is provided between the first positioning block 11 and the second positioning block 12. The aperture of the first through hole 111 is the same as the diameter of the pressure rod 2, and the pressure rod 2 can slide relative to the first positioning block 11, the diameter of the pressure rod 2 is smaller than the aperture of the second through hole 121, and the outer diameter of the elastic member 4 is smaller than the aperture of the second through hole 121, so that one end of the elastic member 4 can be inserted into the second through hole 121 and abut against the first step surface 13, so that the elastic member 4 can be installed firmly and at the same time ensure that the elastic member 4 deforms along the axis.

[0033] Preferably, the positioning member 1 further includes at least two third positioning blocks 14, at least two third positioning blocks 14 are evenly installed on the first positioning block 11 along the circumferential direction, and the inner side wall of each third positioning block 14 can be against the outer wall of the bushing. Specifically, in the present embodiment, the positioning member 1 is provided with two third positioning blocks 14, one end of the two third positioning blocks 14 is installed on the first positioning block 11, and the two third positioning blocks 14 are arranged oppositely, and the other end of the third positioning block 14 can be against the turbocharger intermediate body, and the inner wall of the third positioning block 14 is an arc shape that matches the outer wall of the bushing, and the inner walls of the two third positioning blocks can be against the outer wall of the bushing, and the bushing can be clamped so that the bushing is facing the pressure rod 2. At the same time, during the press-fitting process, the two third positioning blocks can guide the bushing to prevent the bushing from deviating from the installation position. Of course, in some other embodiments, a plurality of third positioning blocks 14 can be provided, and a plurality of third positioning blocks 14 are arranged along the circumference of the first positioning block 11.

[0034] Preferably, the third positioning block 14 is provided with a positioning hole 141, and the positioning member 1 further includes a top screw, which can pass through the positioning hole 141 and abut against the bushing. Specifically, in order to fix the bushing, a positioning hole 141 is provided on the side wall of the third positioning block 14, and the top screw passes through the positioning hole 141 and abuts against the bushing, so that the bushing can be fixed between the two third positioning blocks 14 to prevent the bushing from falling.

[0035] Optionally, the positioning hole 141 is a threaded hole, and the top screw is threadedly connected to the third positioning block 14 through the positioning hole 141. Specifically, the positioning hole 141 is set as a threaded hole, and the top screw is threadedly connected to the third positioning block 14 through the positioning hole 141, which facilitates the installation of the top screw and can control the pressing force between the top screw and the bushing, ensuring that the bushing can be pressed into the turbocharger by the pressure rod 2 while being pressed.

[0036] Optionally, the top screw is a marble top screw. Specifically, the head of the marble top screw is an elastic marble, which can realize the expansion and contraction of the head, can fix the bushing, and does not affect the press-fitting of the bushing.

[0037] Preferably, the bushing press-fitting device further comprises a pressing head 5, and the pressing head 5 and the positioning member 1 are respectively connected to the two ends of the pressing rod 2. Specifically, the bushing press-fitting device is provided with a pressing head 5, and the pressing head 5 is installed at the top end of the pressing rod 2, and by pressing the pressing head 5, the pressing rod 2 can be moved relative to the positioning member 1.

[0038] Optionally, the pressure head 5 is provided with a mounting hole 51, and one end of the pressure rod 2 is disposed in the mounting hole 51. Specifically, the pressure head 5 is provided with a mounting hole 51, and one end of the pressure rod 2 is disposed in the mounting hole 51 to achieve the fixing of the pressure head 5 and the pressure rod 2, and prevent the pressure head 5 from being separated from the pressure rod 2. In this embodiment, the diameter of the pressure rod 2 is the same as the aperture of the mounting hole 51, and the pressure rod 2 is inserted into the mounting hole 51 and has an interference fit with the mounting hole 51, so as to achieve the fixing of the pressure head 5 and the pressure rod 2. Of course, in some other embodiments, the pressure head 5 and the pressure rod 2 can be threadedly connected.

[0039] Preferably, if Figure 2 and Figure 4 As shown, the pressure rod 2 includes a mounting portion 22 and a connecting portion 23, the diameter of the mounting portion 22 is smaller than the diameter of the connecting portion 23, a second step surface 24 is provided between the mounting portion 22 and the connecting portion 23, the diameter of the mounting portion 22 is the same as the aperture of the mounting hole 51, the mounting portion 22 is installed in the mounting hole 51, and the pressure head 5 can abut against the second step surface 24, and the connecting portion 23 is threadedly connected with the adjusting member 3. Specifically, the pressure rod 2 is provided with a mounting portion 22 and a connecting portion 23, the connecting portion 23 is used to install the adjusting member 3, the diameter of the connecting portion 23 is larger than the diameter of the mounting portion 22, a second step surface 24 is provided between the mounting portion 22 and the connecting portion 23, the diameter of the mounting portion 22 is the same as the aperture of the mounting hole 51, so that the mounting portion 22 can be inserted into the mounting hole 51 and have an interference fit with the mounting hole 51, and the pressure head 5 can abut against the second step surface 24, which can prevent the pressure head 5 from damaging the connecting portion 23 and ensure the normal adjustment of the adjusting member 3.

[0040] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. Bushing press-fitting device, characterized in that: include: A positioning member (1), a pressure rod (2), an adjusting member (3) and an elastic member (4), wherein one end of the pressure rod (2) is slidably inserted through and exposed from the positioning member (1), the other end of the pressure rod (2) is threadedly connected to the adjusting member (3), the elastic member (4) is arranged between the positioning member (1) and the adjusting member (3), the pressure rod (2) is convexly provided with a limiting portion (21), one end of the positioning member (1) can abut against the limiting portion (21), the pressure rod (2) can drive the adjusting member (3) to compress the elastic member (4), the adjusting member (3) abuts against the other end of the positioning member (1), and the elastic member (4) always has a tendency to drive the positioning member (1) to abut against the limiting portion (21).

2. The bushing press-fitting device according to claim 1, characterized in that: The elastic member (4) is a spring, and the elastic member (4) is sleeved on the outer circumference of the pressure rod (2), and the two ends of the elastic member (4) are respectively connected to the positioning member (1) and the adjusting member (3).

3. The bushing press-fitting device according to claim 2, characterized in that: The positioning member (1) comprises a first positioning block (11) and a second positioning block (12) which are connected to each other; the first positioning block (11) is provided with a first through hole (111); the second positioning block (12) is provided with a second through hole (121); the first through hole (111) is connected to the second through hole (121); the aperture of the first through hole (111) is smaller than the aperture of the second through hole (121); a first step surface (13) is provided between the first positioning block (11) and the second positioning block (12); the first positioning block (11) can abut against the limiting portion (21); the aperture of the second through hole (121) is larger than the outer diameter of the elastic member (4); and the elastic member (4) is connected to the first step surface (13).

4. The bushing press-fitting device according to claim 3, characterized in that: The positioning member (1) further comprises at least two third positioning blocks (14), wherein the at least two third positioning blocks (14) are evenly mounted on the first positioning block (11) along the circumferential direction, and the inner side wall of each third positioning block (14) can abut against the outer wall of the bushing.

5. The bushing press-fitting device according to claim 4, characterized in that: The third positioning block (14) is provided with a positioning hole (141), and the positioning member (1) further comprises a top screw, which can pass through the positioning hole (141) and abut against the bushing.

6. The bushing press-fitting device according to claim 5, characterized in that: The positioning hole (141) is a threaded hole, and the top screw is threadably connected to the third positioning block (14) through the positioning hole (141).

7. The bushing press-fitting device according to claim 5, characterized in that: The top screw is a marble top screw.

8. The bushing press-fitting device according to any one of claims 1 to 7, characterized in that: The bushing press-fitting device also includes a press head (5), and the press head (5) and the positioning member (1) are respectively connected to two ends of the press rod (2).

9. The bushing press-fitting device according to claim 8, characterized in that: The pressure head (5) is provided with a mounting hole (51), and one end of the pressure rod (2) is arranged in the mounting hole (51).

10. The bushing press-fitting device according to claim 9, characterized in that: The pressure rod (2) comprises a mounting portion (22) and a connecting portion (23); the diameter of the mounting portion (22) is smaller than the diameter of the connecting portion (23); a second step surface (24) is provided between the mounting portion (22) and the connecting portion (23); the diameter of the mounting portion (22) is the same as the hole diameter of the mounting hole (51); the mounting portion (22) is mounted in the mounting hole (51), and the pressure head (5) can abut against the second step surface (24); and the connecting portion (23) is threadedly connected to the adjusting member (3).

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