Auxiliary device for assisting bearing bush to be mounted on connecting rod

Abstract

The utility model discloses an auxiliary device for assisting a bearing bush to be installed on a connecting rod. The auxiliary device comprises an upper supporting structure, a lower supporting structure and a linear driving source. The upper supporting structure is used for supporting the upper part of the connecting rod and preventing the upper part from retreating; the lower supporting structure is used for supporting the lower part of the connecting rod and preventing the lower part from retreating; the linear driving source is in driving connection with an arc-surface pushing block; and the linear driving source can drive the cambered surface pushing block to advance or retreat, so that the cambered surface pushing block can push the bearing bush into the large-head curved surface at the upper part or push the bearing bush into the large-head curved surface at the lower part. The bearing bush can be smoothly loaded into the large end of the connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod processing equipment, in particular to an auxiliary device for assisting a bearing bush to be installed on a connecting rod. Background Art

[0002] The connecting rod of a traditional motorcycle engine is generally an integrated structure, for example, it is formed by casting, and then the bearing is knocked into the big end of the connecting rod along the axis of the big end of the connecting rod. However, there is a line contact between the bearing and the connecting rod, and the load-bearing capacity is limited. Therefore, with the upgrading of technology, when it is necessary to increase the displacement of the motorcycle, it is necessary to use a bearing bushing installed in the big end of the connecting rod for load bearing (there is a surface contact between the bearing bushing and the connecting rod) to ensure that the connecting rod can bear a larger load.

[0003] It should be noted that the improved connecting rod still includes a small head, a rod and a big head. According to the common name, a part of the big head becomes the lower part (i.e. the lower part of the connecting rod), and the other part of the big head is connected to the rod and is called the upper part (i.e. the upper part of the connecting rod). The upper part and the lower part are connected together by two bolts.

[0004] The current difficulty is how to smoothly install the bearing into the big end of the connecting rod. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model aims to provide an auxiliary device for assisting the installation of a bearing shell on a connecting rod, which can smoothly install the bearing shell into the big end of the connecting rod.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] An auxiliary device for assisting a bearing bush to be installed on a connecting rod, comprising:

[0008] An upper supporting structure, used for supporting the upper portion of the connecting rod and preventing the upper portion from retreating;

[0009] A lower supporting structure, used for supporting the lower part of the connecting rod and preventing the lower part from retreating;

[0010] A linear drive source is connected to a cambered push block; the linear drive source can drive the cambered push block to move forward or backward, so that the cambered push block can push the bearing into the upper large end curved surface, or push the bearing into the lower large end curved surface.

[0011] Furthermore, the arc surface pushing blocks are provided with at least two, and the upper supporting structure and the lower supporting structure correspond to one of the arc surface pushing blocks respectively.

[0012] Furthermore, the arc surface pushing block is connected to a guide rail, and the arc surface pushing block is guided by the guide rail.

[0013] Furthermore, the linear drive source is drivingly connected to a flat push plate, and the two arc-surface push blocks are both installed on the flat push plate.

[0014] Furthermore, the upper supporting structure includes a supporting platform and a small head plug-in column, wherein the supporting platform is located between the arc surface pushing block and the small head plug-in column, the supporting platform is used to support a part of the lower large head, and the small head plug-in column is used for the upper small head to be socketed.

[0015] Furthermore, the support platform includes a convex strip, two columns connected to the opposite ends of the convex strip, the columns protrude from the convex strip along the axial direction of the small head plug-in column, and the two columns are respectively used to abut against the opposite sides of the upper part to prevent the upper part from shaking.

[0016] Furthermore, the small head plug-in column is a stepped column, and a step surface is formed between the small column of the small head plug-in column and the large column of the small head plug-in column. The small column is used for the small head to be plugged in, and the step surface is used for supporting the upper small head.

[0017] Furthermore, the lower supporting structure includes a lower supporting seat and two positioning columns connected to the lower supporting seat, and the positioning columns are used to be inserted into the bolt mounting holes of the lower part to support the lower part.

[0018] Furthermore, the auxiliary device for assisting the bearing to be installed on the connecting rod also includes a base plate, and the upper supporting structure, the lower supporting structure and the linear drive source are all installed on the base plate.

[0019] Furthermore, the base plate includes a flat plate and a vertical plate connected to the flat plate; the upper supporting structure and the lower supporting structure are both installed on the flat plate, and the linear drive source is installed on the vertical plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The arc surface push block is driven by a linear drive source to perform linear motion, so that the bearing shell is pushed into the upper part of the connecting rod or the lower part of the connecting rod along the radial direction through the arc surface push block. The installation method is not only relatively smooth and reliable, but also realizes mechanized assembly, and the assembly efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a working effect diagram of an auxiliary device for assisting the bearing bush to be installed on a connecting rod according to the utility model;

[0023] Figure 2 for Figure 1 Exploded diagram of .

[0024] In the figure: 1. upper supporting structure; 11. supporting platform; 111. convex strip; 112. column; 12. small head plug-in column; 121. small column; 122. large column; 123. step surface; 2. lower supporting structure; 21. lower supporting seat; 22. positioning column; 3. linear drive source; 4. arc surface push block; 5. flat push plate; 6. bottom plate; 61. flat plate; 62. vertical plate; 7. workpiece; 71. upper part; 72. lower part; 73. small head; 74. large head; 8. bearing; 9. guide rail. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element, or there may be an element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element, or there may be an element centered thereon. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0027] Unless otherwise defined, all technical terms and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] See also Figure 1-Figure 2 An auxiliary device for assisting the installation of a bearing shell on a connecting rod in this embodiment includes: an upper supporting structure 1, a lower supporting structure 2 and a linear drive source 3.

[0029] The upper supporting structure 1 is used to support the upper portion 71 of the connecting rod (ie, the workpiece 7 ) and prevent the upper portion 71 from retreating.

[0030] The lower supporting structure 2 is used to support the lower portion 72 of the connecting rod (ie, the workpiece 7) and prevent the lower portion 72 from retreating.

[0031] The linear drive source 3 is connected to the arc-surface push block 4; the linear drive source 3 can drive the arc-surface push block 4 to move forward or backward, so that the arc-surface push block 4 can push the bearing 8 into the large end curved surface of the upper part 71, or push the bearing 8 into the large end curved surface of the lower part 72.

[0032] It should be noted that the bearing shell 8 of this embodiment is composed of two independent arc-shaped plates.

[0033] During operation, the upper part 71 of the connecting rod is first placed on the upper support structure 1, and the lower part 72 of the connecting rod is placed on the lower support structure 2, and then a part of the bearing bush 8 is placed on the upper part 71 of the connecting rod, and another part of the bearing bush 8 is placed on the lower part 72 of the connecting rod. Then, the arc surface push block 4 is driven forward by the linear drive source 3 to push the bearing bush 8 into the large end curved surface of the upper part 71, or push the bearing bush 8 into the large end curved surface of the lower part 72. Among them, the linear drive source 3 can move forward once to complete the nesting of the bearing 8 of the upper part 71 of the connecting rod and the lower part 72 of the connecting rod, or the linear drive source 3 can move forward twice to complete the nesting of the bearing 8 of the upper part 71 of the connecting rod and the lower part 72 of the connecting rod (but in this case, the upper support structure 1, the lower support structure 2 and the linear drive source 3 are required to be located in the same straight line; or at least one of the upper support structure 1, the lower support structure 2 and the linear drive source 3 can generate translational motion), or the linear drive source 3 can move forward and backward to complete the nesting of the bearing 8 of the upper part 71 of the connecting rod and the lower part 72 of the connecting rod respectively.

[0034] Obviously, by driving the connected arc surface push block 4 to perform linear motion through the linear drive source 3, the bearing shell 8 is pushed into the upper part 71 or the lower part 72 of the connecting rod along the radial direction through the arc surface push block 4. The installation method is not only relatively smooth and reliable, but also realizes mechanized assembly, and the assembly efficiency is higher.

[0035] In this embodiment, in order to improve work efficiency, preferably, at least two arc-surface pushing blocks 4 are provided, and the upper supporting structure 1 and the lower supporting structure 2 correspond to one of the arc-surface pushing blocks 4 respectively.

[0036] In this embodiment, in order to improve the movement stability of the arc surface pushing block 4, preferably, the arc surface pushing block 4 is connected with a guide rail 9, and the guide rail 9 is used to guide the arc surface pushing block 4.

[0037] In this embodiment, preferably, the linear drive source 3 is connected to the flat push plate 5, and the two arc-surface push blocks 4 are both installed on the flat push plate 5. In this way, only one linear drive source 3 is needed to drive the two arc-surface push blocks 4 at the same time, and the guide rail 9 is used for guiding and correcting to prevent the arc-surface push blocks 4 from swinging. The linear drive source 3 can be a linear motor (such as a servo motor), an electric push rod, etc.

[0038] In this embodiment, preferably, the upper support structure 1 includes a support platform 11 and a small head plug-in column 12, the support platform 11 is located between the arc surface push block 4 and the small head plug-in column 12, the support platform 11 is used to support a part of the large head 74 of the lower part 72, and the small head plug-in column 12 is used for the small head 73 of the upper part 71 to be connected. In this way, the upper part 71 is prevented from retreating by the small head plug-in column 12, and the retreat prevention effect is better. In addition, the small head 73 of the upper part 71 is the main gravity part during normal operation, and is therefore not easily damaged. It can be understood that as an alternative setting method, a first clamping device can be installed on the support platform 11 to fix the upper part 71, etc.

[0039] In this embodiment, in order to make the assembly process smoother, preferably, the support platform 11 includes a convex strip 111, two columns 112 connected to the opposite ends of the convex strip 111, and the columns 112 protrude from the convex strip 111 along the axial direction of the small head plug-in column 12. The two columns 112 are respectively used to abut against the opposite sides of the upper part 71 to prevent the upper part 71 from shaking.

[0040] In this embodiment, in order to support the upper part 71 more stably, preferably, the small head plug-in column 12 is a stepped column, and a step surface 123 is provided between the small column 121 of the small head plug-in column 12 and the large column 122 of the small head plug-in column 12. The small column 121 is used for the small head 73 to be plugged in, and the step surface 123 is used to support the small head 73 of the upper part 71.

[0041] In this embodiment, in order to prevent the lower part 72 from retreating (i.e., preventing it from retreating), preferably, the lower support structure 2 includes a lower support seat 21 and two positioning columns 22 connected to the lower support seat 21, and the positioning columns 22 are used to insert the bolt installation holes of the lower part 72 to support the lower part 72. Moreover, the positioning columns 22 have the function of preventing the lower part 72 from swinging. Among them, as an alternative setting method, a second clamping device can be installed on the lower support seat 21 to fix the lower part 72 of the connecting rod, etc.

[0042] In this embodiment, preferably, the auxiliary device for assisting the bearing to be installed on the connecting rod further comprises a bottom plate 6, and the upper support structure 1, the lower support structure 2 and the linear drive source 3 are all installed on the bottom plate 6. In this way, by moving the bottom plate 6, the entire auxiliary device for assisting the bearing to be installed on the connecting rod can be moved.

[0043] In this embodiment, in order to improve the structural compactness of an auxiliary device for assisting the bearing to be installed on a connecting rod, preferably, the base plate 6 includes a flat plate 61 and a vertical plate 62 connected to the flat plate 61; the upper supporting structure 1 and the lower supporting structure 2 are both installed on the flat plate 61, and the linear drive source 3 is installed on the vertical plate 62.

[0044] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An auxiliary device for assisting the installation of a bearing bush on a connecting rod, characterized in that: include: An upper support structure (1) for supporting the upper portion (71) of the connecting rod and preventing the upper portion (71) from retreating; A lower support structure (2) for supporting the lower portion (72) of the connecting rod and preventing the lower portion (72) from retreating; A linear drive source (3) is connected to a cambered push block (4); the linear drive source (3) can drive the cambered push block (4) to move forward or backward, so that the cambered push block (4) can push the bearing bush (8) into the large end curved surface of the upper part (71), or push the bearing bush (8) into the large end curved surface of the lower part (72).

2. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 1, characterized in that: The arc surface pushing blocks (4) are provided with at least two pieces, and the upper supporting structure (1) and the lower supporting structure (2) respectively correspond to one of the arc surface pushing blocks (4).

3. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 1 or 2, characterized in that: The arc surface pushing block (4) is connected to a guide rail (9), and the arc surface pushing block (4) is guided by the guide rail (9).

4. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 2, characterized in that: The linear drive source (3) is drivingly connected to a flat push plate (5), and the two arc-surface push blocks (4) are both mounted on the flat push plate (5).

5. The auxiliary device for assisting the installation of a bearing bush on a connecting rod according to claim 1, characterized in that: The upper support structure (1) comprises a support platform (11) and a small head plug-in column (12), wherein the support platform (11) is located between the arc surface push block (4) and the small head plug-in column (12), the support platform (11) is used to support a part of the large head (74) of the lower part (72), and the small head plug-in column (12) is used to be sleeved with the small head (73) of the upper part (71).

6. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 5, characterized in that: The support platform (11) comprises a convex strip (111) and two upright posts (112) connected to opposite ends of the convex strip (111). The upright posts (112) protrude from the convex strip (111) along the axial direction of the small-head plug-in post (12). The two upright posts (112) are respectively used to abut against opposite sides of the upper portion (71) to prevent the upper portion (71) from shaking.

7. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 5, characterized in that: The small head plug-in column (12) is a stepped column, and a stepped surface (123) is formed between a small column (121) of the small head plug-in column (12) and a large column (122) of the small head plug-in column (12). The small column (121) is used for plugging the small head (73), and the stepped surface (123) is used for supporting the small head (73) of the upper part (71).

8. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 5, characterized in that: The lower support structure (2) comprises a lower support seat (21) and two positioning columns (22) connected to the lower support seat (21), wherein the positioning columns (22) are used to be inserted into bolt mounting holes of the lower part (72) to support the lower part (72).

9. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 1, characterized in that: The auxiliary device for assisting the installation of a bearing shell on a connecting rod further comprises a base plate (6), and the upper support structure (1), the lower support structure (2) and the linear drive source (3) are all installed on the base plate (6).

10. An auxiliary device for assisting the installation of a bearing bush on a connecting rod as claimed in claim 9, characterized in that: The base plate (6) comprises a flat plate (61) and a vertical plate (62) connected to the flat plate (61); the upper support structure (1) and the lower support structure (2) are both mounted on the flat plate (61), and the linear drive source (3) is mounted on the vertical plate (62).

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