Gap control gasket for connecting rod bearing and crankshaft

By designing a C-shaped gasket body with markings and guide chamfers, the problems of gasket thickness not being easy to observe and easy to fall off in the prior art are solved, realizing rapid adjustment and stable assembly of the gap between the connecting rod bearing and the crankshaft.

CN224120523UActive Publication Date: 2026-04-14SHANGHAI SAMRO HOMOGENIZER
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

In the existing technology, the thickness of the shims used to control the gap between the connecting rod bearing and the crankshaft is not easy to observe and they are prone to falling off, making installation and gap adjustment difficult.

Method used

A gap control gasket comprising a gasket body and a marking sub-gasket is designed. The gasket body has a C-shaped structure, the marking sub-gasket has markings, the guide chamfer forms a flared structure, and a bend line is provided at the connection to improve installation efficiency and prevent falling off.

Benefits of technology

Marking facilitates the selection of shims of appropriate thickness, improves installation efficiency and gap adjustment accuracy, reduces the risk of falling, and ensures smooth assembly.

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Abstract

The utility model discloses a clearance control gasket for a connecting rod bearing and a crankshaft. The clearance control gasket comprises a gasket main body and a marking auxiliary gasket, the gasket body is of a C-shaped structure with an opening in one side, and the gasket body is arranged between the two connecting rod tiles. The marking auxiliary gasket is arranged on the other side of the gasket body and extends to the outer sides of the two connecting rod tiles, and marks are arranged on the marking auxiliary gasket. The utility model relates to the technical field of homogenizer equipment, and can solve the problems that the thickness of a gasket is difficult to observe and the gasket is easy to fall in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of homogenizer equipment technology, and in particular to a gap control shim between a connecting rod bearing and a crankshaft. Background Technology

[0002] In a homogenizer, the connecting rod bearing mates with the crankshaft, and the clearance between them needs to be controlled within a certain range. Please refer to the appendix. Figure 1 In the prior art, a C-shaped gasket 10 is placed between two connecting rod bearings to control the clearance between the connecting rod bearings and the crankshaft.

[0003] Because existing shims are located between two connecting rod bearings, they are difficult to observe, making it impossible to quickly determine their thickness and hindering adjustments to the clearance between the connecting rod bearings and the crankshaft. Furthermore, the shims are at risk of falling off during the connection and crankshaft operation and clearance adjustments. Therefore, there is a need for a clearance control shim for the connecting rod bearings and crankshaft that can solve the problems of difficulty in observing shim thickness and the risk of shims falling off in existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a gap control shim between the connecting rod bearing and the crankshaft, which can solve the problems of the thickness of the shim being difficult to observe and the shim being easy to fall off in the prior art.

[0005] This utility model is implemented as follows:

[0006] A clearance control shim between a connecting rod bearing and a crankshaft includes a shim body and a marked auxiliary shim. The shim body is a C-shaped structure with an opening on one side and is disposed between two connecting rod bearings. The marked auxiliary shim is disposed on the other side of the shim body and extends to the outer side of the two connecting rod bearings. The marked auxiliary shim is marked.

[0007] A guide chamfer is formed at one side opening of the gasket body, and a pair of guide chamfers are symmetrically arranged at both ends of the opening of the gasket body, so that the opening end of the gasket body forms a flared structure.

[0008] The angle between the guide chamfer and the central axis of the gasket body is an acute angle.

[0009] The guide chamfer forms a 10° angle with the central axis of the gasket body.

[0010] The marking pad is provided with a bend line at the connection between the marking pad and the pad body, so that the marking pad bends relative to the pad body along the bend line.

[0011] The marking pad and the pad body are an integral structure.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] 1. This utility model has a gasket body and a marked auxiliary gasket. The marking on the marked auxiliary gasket makes it easy to quickly select the gasket body of the required thickness before installation, which improves the installation and clearance adjustment efficiency of the connecting rod bearing and crankshaft. At the same time, it is also easy to see the thickness of the installed gasket body after installation, so as to facilitate the subsequent clearance adjustment of the connecting rod bearing and crankshaft.

[0014] 2. The present invention has a bending line between the main body of the gasket and the marking sub-gasket, which makes it easy to bend the marking sub-gasket relative to the main body of the gasket, thereby reducing the risk of the main body of the gasket falling off during the use of the connecting rod bearing and the crankshaft and the clearance adjustment process, and also making it easy to see the markings set on the outer side.

[0015] 3. Because this utility model has guide chamfers, a pair of symmetrically arranged guide chamfers form an flared structure at the open end of the gasket body, which makes it easier to insert the gasket body between the two connecting rod bearings and improves assembly efficiency. Attached Figure Description

[0016] Figure 1 This is a front view of the existing technology for controlling the clearance between the connecting rod bearing and the crankshaft;

[0017] Figure 2 This is a front view of the clearance control shim between the connecting rod bearing and the crankshaft of this utility model;

[0018] Figure 3 This is an assembly diagram of the gap control shim between the connecting rod bearing and the crankshaft of this utility model.

[0019] In the diagram, 10 is the gasket, 20 is the connecting rod bearing, 30 is the crankshaft, 1 is the gasket body, 11 is the guide chamfer, 2 is the marking sub-gasket, 21 is the mark, and 3 is the bend line. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Please see the appendix Figure 2 and attached Figure 3 A clearance control shim for connecting rod bearings and crankshaft includes a shim body 1 and a marking sub-shim 2; the shim body 1 is a C-shaped structure with an opening on one side and is disposed between two connecting rod bearings 20; the marking sub-shim 2 is disposed on the other side of the shim body 1 and extends to the outer side of the two connecting rod bearings 20, and the marking sub-shim 2 is provided with a mark 21.

[0022] By setting the marking sub-shield 2, the marking sub-shield 2 is exposed on the outside of the connecting rod bearing 20, thus exposing the mark 21. The mark 21 can be a thickness mark of the shim body 1, for example, t=0.2, that is, the thickness of the shim body 1 is 0.2mm. This makes it easy to see the thickness of the shim body 1 intuitively, which is beneficial for adjusting the clearance between the connecting rod bearing 20 and the crankshaft 30. It also makes it easy to quickly and accurately select the shim body 1 of the required thickness from a large number of spare shims. The mark 21 can be printed on the marking sub-shield 2 during the processing of the shim body 1 and the marking sub-shield 2.

[0023] Please see the appendix Figure 2 A guide chamfer 11 is formed at one side opening of the gasket body 1. A pair of guide chamfers 11 are symmetrically arranged at both ends of the opening of the gasket body 1, so that the opening end of the gasket body 1 forms a flared structure.

[0024] The flared structure formed by a pair of guide chamfers 11 makes it easier to insert the gasket body 1 between the two connecting rod bearings 20, improving assembly efficiency and convenience.

[0025] Please see the appendix Figure 3 The guide chamfer 11 forms an acute angle with the central axis of the gasket body 1.

[0026] The angle between the guide chamfer 11 and the central axis of the gasket body 1 can be adjusted adaptively according to actual assembly requirements.

[0027] Please see the appendix Figure 2 Preferably, the guide chamfer 11 forms an angle of 10° with the central axis of the gasket body 1.

[0028] Please see the appendix Figure 2 The marking pad 2 and the pad body 1 are connected by a bending line 3, so that the marking pad 2 is bent relative to the pad body 1 along the bending line 3.

[0029] Preferably, the bend line 3 can be a dotted break line, which facilitates bending the marking pad 2 at 90°, making it less likely to fall off after the pad body 1 is assembled between the two connecting rod bearings 20, even during the adjustment of the gap between the connecting rod bearing 20 and the crankshaft 30. This also prevents the marking pad 2 from protruding outwards and affecting the normal use of components such as the connecting rod bearing 20 and the crankshaft 30. The size of the marking pad 2 can be adaptively adjusted according to actual marking requirements.

[0030] The marking pad 2 and the pad body 1 are an integral structure, ensuring the integrity and structural strength of the entire pad.

[0031] Please see the appendix Figure 2 and attached Figure 3 The installation method of this utility model is as follows:

[0032] First, quickly select the required thickness of the gasket body 1 according to the mark 21 on the marking pad 2. Then, assemble the gasket body 1 between the two connecting rod bearings 20, with the marking pad 2 located on the outside of the two connecting rod bearings 20. Bend the marking pad 2 90° along the bending line 3, so that the mark 21 faces outward after bending.

[0033] The thickness of the gasket body 1 can be visually seen before and after installation by marking the mark 21 on the gasket 2, which facilitates the use of the connecting rod bearing 20 and the crankshaft 30 and the adjustment of their gap. In addition, the gasket body 1 is not easy to fall off during the use of the connecting rod bearing 20 and the crankshaft 30 and the adjustment of their gap.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A clearance control shim between a connecting rod bearing and a crankshaft, characterized in that: Including gaskets Main body (1) and marking pad (2); The gasket body (1) is a C-shaped structure with an opening on one side. The gasket body (1) is set between two connecting rod bearings (20). The marking sub-gasket (2) is set on the other side of the gasket body (1). The marking sub-gasket (2) extends to the outside of the two connecting rod bearings (20). The marking sub-gasket (2) is marked (21).

2. The clearance control shim between the connecting rod bearing and the crankshaft according to claim 1, characterized in that: A guide chamfer (11) is formed at one side opening of the gasket body (1). A pair of guide chamfers (11) are symmetrically arranged at both ends of the opening of the gasket body (1), so that the opening end of the gasket body (1) forms a flared structure.

3. The clearance control shim between the connecting rod bearing and the crankshaft according to claim 2, characterized in that: The angle between the guide chamfer (11) and the central axis of the gasket body (1) is an acute angle.

4. The clearance control shim between the connecting rod bearing and the crankshaft according to claim 3, characterized in that: The guide chamfer (11) has an angle of 10° with the central axis of the gasket body (1).

5. The clearance control shim between the connecting rod bearing and the crankshaft according to claim 1, characterized in that: The marking pad (2) is provided with a bending line (3) at the connection between it and the pad body (1), so that the marking pad (2) bends relative to the pad body (1) along the bending line (3).

6. The gap control shim between the connecting rod bearing and the crankshaft according to claim 1 or 5, characterized in that: The marking pad (2) and the pad body (1) are an integral structure.