Installation tool for bearing shells

Abstract

The utility model relates to the technical field of diesel engine assembly devices, and discloses a mounting tool for a bearing shell, comprising: a base, a telescopic rod and a positioning piece; the device has a simple structure and is easy to use. When in use, it is only necessary to insert the base into the bearing shell, move the telescopic rod downward, and make the abutment portion of the telescopic rod drive the positioning piece to extend from a second guide hole and abut against the inner peripheral side wall of the bearing shell. At this time, the device is relatively fixed to the bearing shell, and the bearing shell is moved into the bearing cover by the device, thus completing the installation of the bearing shell. Moreover, since the device utilizes the internal space of the bearing shell and does not occupy the space between the bearing shell and the bearing cover, the bearing shell can be accurately installed in the bearing cover.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engine assembly devices, in particular to an installation tool for a bearing bush. Background Art

[0002] At present, in order to be able to install the bearing shell in the bearing cover with an interference fit, it is necessary to put the bearing shell into liquid nitrogen for cooling before installation to shrink the outer diameter of the bearing shell, and at the same time put the bearing cover into an oven for heating to expand the inner diameter of the bearing cover, and then the worker installs the bearing shell in the bearing cover through a clamp. This installation method using a clamp is not only very inconvenient, but also prone to errors, resulting in improper installation of the bearing shell and only half of the bearing shell entering the bearing cover. Since the outer diameter of the bearing shell will quickly return to the normal temperature size after cooling, after the bearing shell is misplaced, it can only be pressed out again and installed again. In the process of pressing out the bearing shell, the bearing shell may be damaged and need to be replaced, which will further reduce the installation efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a mounting tool for a bearing bush, which can not only accurately mount the bearing bush into a bearing cover, but also has a simple structure and is easy to use.

[0004] In order to achieve the above-mentioned purpose, the utility model provides an installation tool for a bearing shell, comprising: a base, a telescopic rod and a positioning member; the base has a first guide hole and a second guide hole, the first guide hole extends along a first direction and passes through one side of the base in the first direction, the second guide hole extends along a second direction, and one end is connected to the first guide hole, and the other end passes through one side of the base in the second direction; the telescopic rod is slidably connected to the first guide hole, and the telescopic rod comprises a first connecting portion and a first abutting portion, the first abutting portion is arranged at one end of the first connecting portion adjacent to the second guide hole, and the diameter of the first abutting portion gradually decreases from the end adjacent to the first connecting portion to the end away from the first connecting portion; the positioning member is slidably connected to the second guide hole, and one end of the positioning member abuts against the first abutting portion, and as the telescopic rod slides along the first guide hole, the positioning member can extend out of the second guide hole.

[0005] Optionally, the positioning member includes a first rod body and a second rod body, the second guide hole includes a first extension portion and a second extension portion, one end of the first extension portion is connected to the first guide hole, the other end of the first extension portion is connected to one end of the second extension portion, the other end of the second extension portion passes through one side of the base in the second direction, the aperture of the first extension portion is W1, the aperture of the second extension portion is W2, W1>W2, the first rod body is slidably connected to the first extension portion, and one end of the first rod body is abutted against the first abutting portion, the other end of the first rod body is connected to one end of the second rod body, the second rod body is slidably connected to the second extension portion, and as the telescopic rod slides along the first guide hole, the second rod body can extend out of the second guide hole.

[0006] Optionally, the positioning member further includes a return spring, which is sleeved on the second rod body, has one end connected to the first rod body, and has the other end connected to an end of the first extension portion away from the first guide hole.

[0007] Optionally, the first rod body includes a second connecting portion and a second abutting portion, the second abutting portion is arranged at an end of the second connecting portion adjacent to the first guide hole, the diameter of the second abutting portion gradually decreases from an end adjacent to the second connecting portion to an end away from the second connecting portion, and the second abutting portion abuts against the first abutting portion.

[0008] Optionally, the positioning member further includes an abutment column, the abutment column is arranged at an end of the second rod body away from the first rod body, and the abutment column is made of nylon.

[0009] Optionally, the base includes a base and a pillar, the pillar is arranged on one side of the base in the first direction, the first guide hole passes through the pillar, and part of the first guide hole is located in the base, and the second guide hole is located in the base.

[0010] Optionally, a convex edge is also provided on the outer peripheral side of the base.

[0011] Optionally, a plurality of the positioning members are included, the base has a plurality of the second guide holes, and the plurality of the guide holes are arranged at intervals along the circumference of the first guide hole, and the plurality of the positioning members are respectively arranged in the plurality of the second guide holes.

[0012] Optionally, the outer peripheral side surface of the first connecting portion has an external thread, the first guide hole has an internal thread, and the first connecting portion is threadedly connected to the first guide hole.

[0013] Optionally, the telescopic rod further includes a handle, which is connected to an end of the first connecting portion that is away from the first abutting portion, and as the handle rotates, the first connecting portion can move along the first guide hole.

[0014] Compared with the prior art, the utility model embodiment of a tool for installing a bearing has the following beneficial effects: the device has a simple structure and is easy to use. When in use, it is only necessary to insert the base into the bearing, move the telescopic rod downward, and make the abutment portion of the telescopic rod drive the positioning member to extend from the second guide hole and abut against the inner peripheral side wall of the bearing. At this time, the device is relatively fixed to the bearing, and the bearing is moved to the bearing cover through the device to complete the installation of the bearing. Moreover, since the device utilizes the internal space of the bearing and does not occupy the space between the bearing and the bearing cover, the bearing can be accurately installed in the bearing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the installation tool for the bearing bush in an embodiment of the utility model when it is in a non-working state;

[0016] Figure 2 It is a structural schematic diagram of the installation tool for bearing bushes in an embodiment of the utility model when it is in a working state;

[0017] Figure 3 It is a structural schematic diagram of the base in an embodiment of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the telescopic rod of an embodiment of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the positioning member in an embodiment of the utility model.

[0020] In the figure, 1, base; 11, first guide hole; 12, second guide hole; 121, first extension part; 122, second extension part; 13, base; 14, pillar; 15, flange; 2, telescopic rod; 21, first connecting part; 22, first abutting part; 23, handle; 3, positioning member; 31, first rod body; 311, second connecting part; 312, second abutting part; 32, second rod body; 33, return spring; 34, abutting column; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] like Figure 1-Figure 5 As shown, an installation tool for a bearing bushing according to an embodiment of the utility model comprises: a base 1, a telescopic rod 2 and a positioning member 3; the base 1 has a first guide hole 11 and a second guide hole 12, the first guide hole 11 extends along a first direction X and passes through one side of the base 1 in the first direction X, the second guide hole 12 extends along a second direction Y, and one end is connected to the first guide hole 11, and the other end passes through one side of the base 1 in the second direction Y; the telescopic rod 2 is slidably connected to the first guide hole 11, and the telescopic rod 2 comprises a first connecting portion 21 and a first abutting portion 22, the first abutting portion 22 is arranged at one end of the first connecting portion 21 adjacent to the second guide hole 12, and the diameter of the first abutting portion 22 gradually decreases from one end adjacent to the first connecting portion 21 to one end away from the first connecting portion 21; the positioning member 3 is slidably connected to the second guide hole 12, and one end of the positioning member 3 abuts against the first abutting portion 22, and as the telescopic rod 2 slides along the first guide hole 11, the positioning member 3 can extend out of the second guide hole 12.

[0025] Based on the above scheme, the device has a simple structure and is easy to use. When in use, it is only necessary to insert the base 1 into the bearing shell, move the telescopic rod 2 downward, and make the abutment portion of the telescopic rod 2 drive the positioning member 3 to extend from the second guide hole 12 and abut against the inner peripheral side wall of the bearing shell. At this time, the device is relatively fixed to the bearing shell, and the bearing shell is moved to the bearing cover through the device to complete the installation of the bearing shell. Moreover, since the device utilizes the internal space of the bearing shell and does not occupy the space between the bearing shell and the bearing cover, the bearing shell can be accurately installed in the bearing cover.

[0026] like Figure 4 and Figure 5As shown, in order to prevent the positioning member 3 from falling off from the second guide hole 12 during the movement of the positioning member 3, the positioning member 3 includes a first rod body 31 and a second rod body 32, and the second guide hole 12 includes a first extension portion 121 and a second extension portion 122. One end of the first extension portion 121 is connected to the first guide hole 11, and the other end of the first extension portion 121 is connected to one end of the second extension portion 122. The other end of the second extension portion 122 passes through one side of the base 1 in the second direction Y. The aperture of the first extension portion 121 is W1, and the aperture of the second extension portion 122 is W2. The first rod body 31 is slidably connected to the first guide hole 11, and the second extension portion 122 is connected to the second guide hole 11. The telescopic rod 2 is connected to the first extension portion 121, and one end of the first rod body 31 is in contact with the first abutting portion 22, the other end of the first rod body 31 is connected to one end of the second rod body 32, and the second rod body 32 is slidably connected to the second extension portion 122. As the telescopic rod 2 slides along the first guide hole 11, the second rod body 32 can extend out of the second guide hole 12. The diameter of the first rod body 31 is D, W1<D<W2. The movement of the first rod body 31 is limited by the change in the aperture of the first extension portion 121 and the second extension portion 122 to prevent it from falling off from the second guide hole 12 during the movement of the positioning member 3.

[0027] like Figure 1 and Figure 2 As shown, for ease of use, the positioning member 3 also includes a reset spring 33, which is sleeved on the second rod body 32, and one end of the reset spring 33 is connected to the first rod body 31, and the other end is connected to the end of the first extension portion 121 away from the first guide hole 11. When use is over, when the abutment portion moves upward, the first rod body 31 and the second rod body 32 can be reset under the action of the reset spring 33 to facilitate next use.

[0028] like Figure 5 As shown, in order to facilitate the control of the movement of the positioning member 3, the first rod body 31 includes a second connecting portion 311 and a second abutting portion 312. The second abutting portion 312 is arranged at one end of the second connecting portion 311 adjacent to the first guide hole 11. The diameter of the second abutting portion 312 gradually decreases from one end adjacent to the second connecting portion 311 to the end away from the second connecting portion 311. The second abutting portion 312 abuts against the first abutting portion 22. Through the mutual cooperation between the first abutting portion 22 and the second abutting portion 312, the smooth movement of the positioning member 3 is achieved.

[0029] like Figure 5 As shown, in order to avoid damaging the inner peripheral side wall of the bearing shell, the positioning member 3 further includes an abutment column 34, which is arranged at one end of the second rod body 32 away from the first rod body 31, and the abutment column 34 is made of nylon.

[0030] like Figure 3As shown, in order to facilitate operation and reduce production costs, the base 1 includes a base 13 and a pillar 14. The pillar 14 is arranged on one side of the base 13 in the first direction X. The first guide hole 11 passes through the pillar 14, and part of the first guide hole 11 is located in the base 13. The second guide hole 12 is located in the base 13. When in use, the pillar 14 can be held to complete the movement of the device and the bearing.

[0031] like Figure 3 As shown, in order to facilitate installation, a flange 15 is also provided on the outer side of the base 13. When the base 13 is placed into the bearing shell, the flange 15 can abut against the top surface of the bearing shell. The relative position of the flange 15 and the bearing shell can be used to determine whether the base 13 and the bearing are aligned.

[0032] Optionally, in order to ensure the stability of the device, a plurality of positioning members 3 are included, the base 1 has a plurality of second guide holes 12, and the plurality of guide holes are arranged at circumferential intervals along the first guide hole 11, and the plurality of positioning members 3 are respectively arranged in the plurality of second guide holes 12, and the inner circumferential side wall of the bearing shell is fixed by the plurality of positioning members 3.

[0033] Optionally, in order to smoothly control the movement of the positioning member 3, the outer peripheral side surface of the first connecting portion 21 has an external thread, and the first guide hole 11 has an internal thread. The first connecting portion 21 is threadedly connected to the first guide hole 11. Through the cooperation of the internal thread and the external thread, the telescopic rod 2 can move smoothly in the first direction X, and then the positioning member 3 can move smoothly in the second direction Y.

[0034] like Figure 4 As shown, for ease of use, the telescopic rod 2 further includes a handle 23 , which is connected to an end of the first connecting portion 21 away from the first abutting portion 22 . As the handle 23 rotates, the first connecting portion 21 can move along the first guide hole 11 .

[0035] In summary, the embodiment of the utility model provides an installation tool for the bearing, which has a simple structure and is easy to use. When in use, it is only necessary to insert the base 1 into the bearing, move the telescopic rod 2 downward, and make the abutment portion of the telescopic rod 2 drive the positioning member 3 to extend from the second guide hole 12 and abut against the inner peripheral side wall of the bearing. At this time, the device is relatively fixed to the bearing, and the bearing is moved to the bearing cover through the device to complete the installation of the bearing. Moreover, since the device utilizes the internal space of the bearing and does not occupy the space between the bearing and the bearing cover, the bearing can be accurately installed in the bearing cover.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A tool for installing a bearing bush, characterized in that: include: Base, telescopic rod and positioning piece; The base has a first guide hole and a second guide hole, the first guide hole extends along a first direction and passes through one side of the base in the first direction, the second guide hole extends along a second direction, one end of the second guide hole is connected to the first guide hole, and the other end passes through one side of the base in the second direction; The telescopic rod is slidably connected to the first guide hole, and the telescopic rod includes a first connecting portion and a first abutting portion, the first abutting portion is provided at one end of the first connecting portion adjacent to the second guide hole, and the diameter of the first abutting portion gradually decreases from the end adjacent to the first connecting portion to the end away from the first connecting portion; The positioning member is slidably connected to the second guide hole, and one end of the positioning member abuts against the first abutting portion. As the telescopic rod slides along the first guide hole, the positioning member can extend out of the second guide hole.

2. The installation tool for a bearing shell according to claim 1, characterized in that: The positioning member includes a first rod body and a second rod body, the second guide hole includes a first extension portion and a second extension portion, one end of the first extension portion is connected to the first guide hole, the other end of the first extension portion is connected to one end of the second extension portion, the other end of the second extension portion passes through one side of the base in the second direction, the aperture of the first extension portion is W1, the aperture of the second extension portion is W2, W1>W2, the first rod body is slidably connected to the first extension portion, and one end of the first rod body is abutted against the first abutting portion, the other end of the first rod body is connected to one end of the second rod body, the second rod body is slidably connected to the second extension portion, and as the telescopic rod slides along the first guide hole, the second rod body can extend out of the second guide hole.

3. The installation tool for the bearing shell according to claim 2, characterized in that: The positioning member further includes a return spring, which is sleeved on the second rod body, and has one end connected to the first rod body and the other end connected to an end of the first extension portion away from the first guide hole.

4. The installation tool for a bearing according to claim 2, characterized in that: The first rod body includes a second connecting portion and a second abutting portion, the second abutting portion is arranged at one end of the second connecting portion adjacent to the first guide hole, the diameter of the second abutting portion gradually decreases from one end adjacent to the second connecting portion to an end away from the second connecting portion, and the second abutting portion abuts against the first abutting portion.

5. The installation tool for a bearing according to claim 2, characterized in that: The positioning member further includes an abutment column, which is arranged at an end of the second rod body away from the first rod body, and the abutment column is made of nylon.

6. The installation tool for a bearing shell according to claim 1, characterized in that: The base includes a pedestal and a support, wherein the support is disposed on one side of the pedestal in the first direction, the first guide hole passes through the support, and part of the first guide hole is located in the pedestal, and the second guide hole is located in the pedestal.

7. The installation tool for a bearing according to claim 6, characterized in that: The outer peripheral side surface of the base is also provided with a convex edge.

8. The installation tool for a bearing shell according to claim 1, characterized in that: It comprises a plurality of the positioning members, the base has a plurality of the second guide holes, and the plurality of the guide holes are arranged at intervals along the circumference of the first guide hole, and the plurality of the positioning members are respectively arranged in the plurality of the second guide holes.

9. The installation tool for a bearing shell according to claim 1, characterized in that: The outer peripheral side surface of the first connection portion has an external thread, the first guide hole has an internal thread, and the first connection portion is threadedly connected to the first guide hole.

10. The installation tool for a bearing shell according to claim 9, characterized in that: The telescopic rod further includes a handle, which is connected to an end of the first connecting portion that is away from the first abutting portion. As the handle rotates, the first connecting portion can move along the first guide hole.

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