Connecting rod assembly structure

Abstract

The utility model relates to the technical field of connecting rod assemblies, in particular to a connecting rod assembly structure, which comprises a connecting rod assembly body, a first connecting rod bearing cap component, a connecting rod bolt, a first connecting rod bush component and a second connecting rod bearing cap component, a connecting rod bolt is installed in the first connecting rod bearing cap assembly, a first connecting rod bush assembly is installed at the lower end of the first connecting rod bearing cap assembly, the lower end of the first connecting rod bearing cap assembly is fixed to a second connecting rod bearing cap assembly through the connecting rod bolt, and a second connecting rod bush assembly is installed on the inner side of the second connecting rod bearing cap assembly. According to the connecting rod bearing cap assembly, the connecting bush body is replaced by the connecting rod bearing cap assembly, a connecting rod bolt does not need to be dismounted, the process of adjusting the pre-tightening force of the connecting rod bolt in the later period is avoided, and meanwhile the safety of the connecting rod bearing cap assembly in the later period is ensured.

Description

Technical Field

[0001] This utility model relates to the field of connecting rod assembly technology, specifically a connecting rod assembly structure. Background Technology

[0002] The connecting rod assembly is a component used in mechanical engineering to connect the piston and the crankshaft. It mainly consists of the connecting rod body, connecting rod big end cap, connecting rod small end bushing, connecting rod big end bearing, and connecting rod bolts. The small end of the connecting rod body is connected to the piston pin, and the big end is connected to the crankshaft. The rod body connects the small end and the big end. The main function of the connecting rod assembly is to convert the reciprocating motion of the piston into the rotational motion of the crankshaft, while bearing the gas force transmitted from the piston pin, as well as the oscillation of the piston itself and the reciprocating inertial force of the piston assembly.

[0003] Connecting rod bearings typically consist of upper and lower bearings, which are installed in the big end bore of the connecting rod and mate with the connecting rod journal on the crankshaft, forming a crucial friction pair in the engine.

[0004] Existing technology requires removing the connecting rod bolts and the connecting rod bearing cap before replacing the connecting rod bearing. While this method ensures correct replacement, it involves bolt preload. Excessive preload can increase bolt tensile deformation and even lead to bolt breakage. Insufficient preload may prevent the connecting rod big end mating surface from separating during operation, resulting in loose connecting rod bolts, loose bearing cap, abnormal engine noise, malfunction, and increased risks in later use if not handled carefully. Therefore, a new connecting rod assembly structure is proposed to address these issues. Utility Model Content

[0005] The purpose of this utility model is to provide a connecting rod assembly structure to solve the problem that when replacing the connecting rod bearing, it is necessary to remove the connecting rod bolts. However, the installation of bolts involves the preload of the bolts. If improper preload is not avoided during bolt installation, it increases the difficulty of installation and the risk of later use.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A connecting rod assembly structure includes a connecting rod assembly body, a first connecting rod bearing cap assembly, a connecting rod bolt, a first connecting rod bearing sleeve assembly, and a second connecting rod bearing cap assembly. The first connecting rod bearing cap assembly is fixedly connected to the bottom end of the connecting rod assembly body. A connecting rod bolt is installed inside the first connecting rod bearing cap assembly. A first connecting rod bearing sleeve assembly is installed at the lower end of the first connecting rod bearing cap assembly. The lower end of the first connecting rod bearing cap assembly is fixed to the second connecting rod bearing cap assembly by the connecting rod bolt. A second connecting rod bearing sleeve assembly is installed inside the second connecting rod bearing cap assembly. The second connecting rod bearing cap assembly includes a connecting rod bearing cap body. An external groove is formed at the right end of the connecting rod bearing cap body, and a sliding track is formed inside the connecting rod bearing cap body. The main body has a slot on the inner side near the outer groove. A baffle is fixedly connected to the left end of the connecting rod bearing cover body. The second connecting rod bearing assembly includes an outer ring. A slide bar is fixedly connected to the outer side of the outer ring. A limiting ring groove is opened on the inner side of the outer ring. The inner side of the limiting ring groove of the outer ring fits against the outer side of the limiting ring piece. A connecting bearing body is fixedly connected to one side of the limiting ring piece. An flared opening is opened on the inner side of the outer ring. A metal spring plate is fixedly connected to one side of the outer ring. A locking plate is fixedly connected to one end of the metal spring plate. A toggle groove is opened on the inner side of the metal spring plate. The connecting rod bearing cover body is fixedly connected to the first connecting rod bearing cover assembly by connecting rod bolts. The outer ring slides inside the slide track opened on the connecting rod bearing cover body by the slide bar.

[0008] As a further optimization of this utility model, the structure of the first connecting rod bearing cover assembly is the same as that of the second connecting rod bearing cover assembly, the structure of the first connecting rod bearing assembly is the same as that of the second connecting rod bearing assembly, and the installation structure between the first connecting rod bearing assembly and the first connecting rod bearing cover assembly is the same as that between the second connecting rod bearing assembly and the second connecting rod bearing cover assembly.

[0009] As a further optimization of this utility model, the top end of the connecting rod bearing cover body is fitted with the bottom end of the first connecting rod bearing cover assembly, the outer groove is annular in shape, and the outer groove passes through the right end of the outer ring.

[0010] As a further optimization of this utility model, the following features are provided: the slot penetrates the right end of the connecting rod bearing cover body; the slide rails penetrate the inner side of the connecting rod bearing cover body on both sides; there are multiple slide rails; some of the slide rails are equilateral trapezoidal in shape; the locking plate engages with the inner side of the slot; and the number of metal spring plates is the same as the number of slots.

[0011] As a further optimization of this utility model, the outer ring is shaped as two cylinders of different diameters, the limiting ring groove is shaped as a ring, the limiting ring piece is shaped as a ring, and the outer side of the connecting tile body is in close contact with the inner side of the outer ring.

[0012] As a further optimization of this utility model, the following features are provided: the left end of the flared opening penetrates the inner side of the outer ring; the actuating groove is connected to the flared opening; the shape of the card plate is a right-angled triangle; and the opening diameter of the flared opening is larger than the opening diameter of the actuating groove.

[0013] As a further optimization of this utility model, the right side of the outer ring is flush with the right side of the connecting rod bearing cover body, the outer side of the outer ring is clearance-fitted with the inner side of the connecting rod bearing cover body, and the left side of the outer ring is in contact with the right side of the baffle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by setting up a first connecting rod bearing assembly, a second connecting rod bearing cover assembly, and a second connecting rod bearing assembly, the device can replace the connecting rod bearing body without removing the connecting rod bolts, avoiding the process of adjusting the preload of the connecting rod bolts later, improving the efficiency of replacing the connecting rod bearing body, and also avoiding various safety hazards caused by preload issues, thereby ensuring the safety and reliability of the device in later use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first connecting rod bearing assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall exploded structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the connecting rod bearing cover body of this utility model;

[0020] Figure 5 This is a cross-sectional view of the outer ring of this utility model;

[0021] Figure 6 This utility model Figure 5 A schematic diagram of the structure at point A.

[0022] In the diagram: 1. Connecting rod assembly; 2. First connecting rod bearing cap assembly; 3. Connecting rod bolt; 4. First connecting rod bearing assembly;

[0023] 5. Second connecting rod bearing cover assembly; 51. Connecting rod bearing cover body; 52. External groove; 53. Slide rail; 54. Slot; 55. Baffle;

[0024] 6. Second connecting rod tile assembly; 61. Outer ring; 62. Sliding bar; 63. Limiting ring groove; 64. Connecting tile body; 65. Limiting ring piece; 66. Flaring; 67. Metal spring plate; 68. Clamping plate; 69. Actuating groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Please see Figure 1-6 This utility model provides a technical solution:

[0028] A connecting rod assembly structure includes a connecting rod assembly body 1, a first connecting rod bearing cap assembly 2, a connecting rod bolt 3, a first connecting rod bearing sleeve assembly 4, and a second connecting rod bearing cap assembly 5. The first connecting rod bearing cap assembly 2 is fixedly connected to the bottom end of the connecting rod assembly body 1. The connecting rod bolt 3 is installed inside the first connecting rod bearing cap assembly 2. The first connecting rod bearing sleeve assembly 4 is installed at the lower end of the first connecting rod bearing cap assembly 2. The lower end of the first connecting rod bearing cap assembly 2 is fixed to the second connecting rod bearing cap assembly 5 by the connecting rod bolt 3. A second connecting rod bearing sleeve assembly 6 is installed inside the second connecting rod bearing cap assembly 5. The second connecting rod bearing cap assembly 5 includes a connecting rod bearing cap body 51. An external groove 52 is formed at the right end of the connecting rod bearing cap body 51. A slide 53 is formed inside the connecting rod bearing cap body 51 near the external groove 52. A slot 54 is provided on the side. A baffle 55 is fixedly connected to the left end of the connecting rod bearing cover body 51. The second connecting rod bearing assembly 6 includes an outer ring 61. A slide bar 62 is fixedly connected to the outer side of the outer ring 61. A limiting ring groove 63 is provided on the inner side of the outer ring 61. The inner side of the limiting ring groove 63 of the outer ring 61 fits against the outer side of the limiting ring piece 65. A connecting bearing body 64 is fixedly connected to one side of the limiting ring piece 65. An flared opening 66 is provided on the inner side of the outer ring 61. A metal spring plate 67 is fixedly connected to one side of the outer ring 61. A locking plate 68 is fixedly connected to one end of the metal spring plate 67. A toggle groove 69 is provided on the inner side of the metal spring plate 67. The connecting rod bearing cover body 51 is fixedly connected to the first connecting rod bearing cover assembly 2 by connecting rod bolts 3. The outer ring 61 slides inside the slide track 53 provided in the connecting rod bearing cover body 51 by the slide bar 62.

[0029] As a further implementation of this solution, the structure of the first connecting rod bearing cover assembly 2 is the same as that of the second connecting rod bearing cover assembly 5, the structure of the first connecting rod bearing assembly 4 is the same as that of the second connecting rod bearing assembly 6, and the installation structure between the first connecting rod bearing assembly 4 and the first connecting rod bearing cover assembly 2 is the same as that between the second connecting rod bearing assembly 6 and the second connecting rod bearing cover assembly 5. Through this setting, the same installation method can be achieved, reducing the complexity of the installation process.

[0030] As a further implementation of this solution, the top end of the connecting rod bearing cover body 51 is attached to the bottom end of the first connecting rod bearing cover assembly 2, and the outer groove 52 is annular in shape. The outer groove 52 passes through the right end of the outer ring 61. With this setting, the second connecting rod bearing assembly 6 can be embedded into the interior of the second connecting rod bearing cover assembly 5, improving the aesthetics after installation.

[0031] As a further implementation of this solution, the slot 54 penetrates the right end of the connecting rod bearing cover body 51, and the slide rail 53 penetrates the inner side of the connecting rod bearing cover body 51 on both sides. There are multiple slide rails 53, and some of the slide rails 53 are equilateral trapezoidal in shape. The locking plate 68 is engaged with the inner side of the slot 54. The number of metal spring plates 67 is the same as the number of slots 54. The outer ring 61 is shaped like two cylinders with different diameters. The limiting ring groove 63 is shaped like a ring. The limiting ring piece 65 is shaped like a ring. The outer side of the connecting pad body 64 is in close contact with the inner side of the outer ring 61. This arrangement facilitates the installation between the second connecting rod bearing cover assembly 5 and the second connecting rod pad assembly 6, making the installation process convenient and quick. At the same time, the structural arrangement of the slide rail 53 and the slide bar 62 improves the stability of the connection between the second connecting rod bearing cover assembly 5 and the second connecting rod pad assembly 6.

[0032] As a further implementation of this solution, the left end of the flared opening 66 penetrates the inner side of the outer connecting ring 61, the actuating groove 69 communicates with the flared opening 66, the shape of the retaining plate 68 is a right-angled triangle, the opening diameter of the flared opening 66 is larger than the opening diameter of the actuating groove 69, the right side of the outer connecting ring 61 is flush with the right side of the connecting rod bearing cover body 51, the outer side of the outer connecting ring 61 is clearance-fitted with the inner side of the connecting rod bearing cover body 51, and the left side of the outer connecting ring 61 is attached to the right side of the baffle 55. Through this setting, the design of the metal spring plate 67, the retaining plate 68 and the retaining groove 54 prevents the second connecting rod bearing cover assembly 5 and the second connecting rod bearing assembly 6 from separating after installation. Through the actuating groove 69 of the metal spring plate 67 and the flared opening 66 of the outer connecting ring 61, the outer connecting ring 61 and the connecting rod bearing cover body 51 can be disassembled to realize the replacement of the connecting bearing body 64.

[0033] Workflow: When replacing the two connecting bearing bodies 64, the connecting rod bolts 3 connecting the first connecting rod bearing cover assembly 2 and the connecting rod bearing cover body 51 do not need to be disassembled. The limiting ring 65 is aligned with the limiting ring groove 63 so that the limiting ring 65 is embedded into the limiting ring groove 63. At the same time, the outer side of the connecting bearing body 64 is in contact with the inner side of the outer ring 61, and the top of the connecting bearing body 64 is flush with the top of the outer ring 61. Then, the first connecting rod bearing assembly 4 is installed in the same way. The sliding strip 62 fixed on the outer side of the outer ring 61 is aligned with the slide rail 53 opened in the connecting rod bearing cover body 51. The slide rail 53 is partially equilateral trapezoidal and partially rectangular. The two shapes of the slide rail 53 are arranged alternately. At the same time, the shape and distribution structure of the sliding strip 62 are the same as that of the slide rail 53. After the outer ring 61 is installed inside the connecting rod bearing cover body 51, any deviation will be clearly visible. When the outer ring 61 drives the metal spring... When plate 67 and clamping plate 68 move, after clamping plate 68 contacts the inner side of clamping groove 54, under the action of the shape of clamping plate 68, clamping plate 68 is squeezed and drives metal spring plate 67 to deform. When clamping plate 68 is aligned with the clamping mouth of clamping groove 54, clamping plate 68 is engaged into the inside of clamping groove 54 under the action of metal spring plate 67. At the same time, the left side of outer ring 61 is attached to the right side of baffle 55, completing the fixation between outer ring 61 and connecting rod bearing cover body 51. The installation method of first connecting rod bearing assembly 4 and first connecting rod bearing cover assembly 2 is the same as above. At this time, the two outer rings 61 are attached to each other, and the two connecting bearing bodies 64 are attached to each other. At this time, the installation of the device is completed. This method of replacing connecting bearing body 64 does not require the removal of connecting rod bolt 3, avoiding the process of adjusting the preload of connecting rod bolt 3 later, improving the efficiency of replacing connecting bearing body 64, and ensuring the safety of device use later.

[0034] When disassembling the device, insert the existing metal rigid rods into the inside of the actuating groove 69 through the flared opening 66, and then twist the metal rigid rods away from the clamping plate 68. At this time, the part of the metal spring plate 67 near the outer ring 61 deforms. After the clamping plate 68 moves away from the clamping opening of the clamping groove 54, the outer ring 61 can be separated from the connecting rod bearing cover body 51, thereby achieving the effect of disassembling the outer ring 61 from the connecting rod bearing cover body 51. At this time, the connecting bearing body 64 can be removed and replaced.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A connecting rod assembly structure comprising a connecting rod assembly body (1), a first connecting rod bearing cap assembly (2), a connecting rod bolt (3), a first connecting rod bearing shell assembly (4) and a second connecting rod bearing cap assembly (5), characterized in that: The first connecting rod bearing cover assembly (2) is internally provided with a connecting rod bolt (3), the lower end of the first connecting rod bearing cover assembly (2) is provided with a first connecting rod bushing assembly (4), and the lower end of the first connecting rod bearing cover assembly (2) is fixed with the second connecting rod bearing cover assembly (5) through the connecting rod bolt (3). The second connecting rod bearing cover assembly (5) comprises a connecting rod bearing cover body (51), the right end of the connecting rod bearing cover body (51) is provided with an external groove (52), the inner side of the connecting rod bearing cover body (51) is provided with a sliding groove (53), the inner side of the connecting rod bearing cover body (51) close to the external groove (52) is provided with a clamping groove (54), the left end of the connecting rod bearing cover body (51) is fixedly connected with a baffle (55), the second connecting rod bushing assembly (6) comprises an external ring (61), the outer side of the external ring (61) is fixedly connected with a sliding strip (62), the inner side of the external ring (61) is provided with a limiting ring groove (63), the inner side of the limiting ring groove (63) provided in the external ring (61) is attached to the outer side of a limiting ring piece (65), one side of the limiting ring piece (65) is fixedly connected with a connecting bushing body (64), the inner side of the external ring (61) is provided with a flared portion (66), one side of the external ring (61) is fixedly connected with a metal spring plate (67), one end of the metal spring plate (67) is fixedly connected with a clamping plate (68), and the inner side of the metal spring plate (67) is provided with a pushing groove (69). The connecting rod bearing cover body (51) is fixedly connected with the first connecting rod bearing cover assembly (2) through the connecting rod bolt (3), and the external ring (61) is slidably arranged in the sliding groove (53) of the connecting rod bearing cover body (51) through the sliding strip (62).

2. A connecting rod assembly according to claim 1, wherein: The structure of the first connecting rod bearing cover assembly (2) is same as that of the second connecting rod bearing cover assembly (5), the structure of the first connecting rod bushing assembly (4) is same as that of the second connecting rod bushing assembly (6), and the mounting structure between the first connecting rod bushing assembly (4) and the first connecting rod bearing cover assembly (2) is same as that between the second connecting rod bushing assembly (6) and the second connecting rod bearing cover assembly (5).

3. A connecting rod assembly according to claim 1, wherein: The top end of the connecting rod bearing cover body (51) is attached to the bottom end of the first connecting rod bearing cover assembly (2), the external groove (52) is in the shape of a circular ring body, and the external groove (52) penetrates through the right end of the external ring (61).

4. A connecting rod assembly according to claim 1, wherein: The clamping groove (54) penetrates through the right end of the connecting rod bearing cover body (51), the sliding groove (53) penetrates through the inner side of the connecting rod bearing cover body (51) from left to right, the number of the sliding grooves (53) is plural, part of the sliding grooves (53) are in the shape of an isosceles trapezoidal body, the clamping plate (68) is clamped in the inner side of the clamping groove (54), and the number of the metal spring plate (67) is same as that of the clamping groove (54).

5. A connecting rod assembly according to claim 1, wherein: The shape of the outer ring (61) is two different diameter cylinders, the shape of the limiting ring groove (63) is a circular ring body, the shape of the limiting ring piece (65) is a circular ring body, and the outer side of the connecting tile body (64) is close to the inner side of the outer ring (61).

6. A connecting rod assembly according to claim 1, wherein: The left end of the flared portion (66) penetrates the inner side of the outer ring (61), the poking groove (69) is communicated with the flared portion (66), the shape of the clamping plate (68) is a right triangle, and the opening diameter of the flared portion (66) is greater than that of the poking groove (69).

7. A connecting rod assembly according to claim 1 wherein: The right side of the outer ring (61) is flush with the right side of the connecting rod bearing cover body (51), the outer side of the outer ring (61) is clearance fit with the inner side of the connecting rod bearing cover body (51), and the left side of the outer ring (61) is attached to the right side of the baffle (55).

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