High-strength automobile engine connecting rod

Abstract

The utility model relates to the technical field of engine connecting rods, and discloses a high-strength automobile engine connecting rod, which comprises a rotating groove which is circumferentially and symmetrically arranged at a connecting big end; the wear-resistant shaft bodies are symmetrically and rotationally connected into the rotating groove; the connecting ring is rotationally connected to the middle of the wear-resistant shaft body; the top covers are symmetrically arranged at the two ends of the large connecting head, and the wear-resistant shaft body is located between the top covers; and the movable cavity is formed between the large connecting head and the connecting ring, and the wear-resisting shaft body is located in the movable cavity. The crankshaft at the position of an automobile engine is installed on the inner ring of the connecting ring, the connecting ring replaces the connecting large head to make contact with the surface of the crankshaft, and when the crankshaft moves, the connecting ring rotates and makes contact with the abrasion-resistant shaft body on the outer side, so that the abrasion-resistant shaft body rotates in the rotating groove, and the connecting ring makes contact with the surface of the crankshaft; therefore, the service life of the large connecting head is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of engine connecting rod technology, specifically a high-strength automotive engine connecting rod. Background Technology

[0002] The connecting rod is the tool that connects the piston and the crankshaft, transmits the force on the piston to the crankshaft, and converts the reciprocating motion of the piston into the rotational motion of the crankshaft. The connecting rod assembly 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 (or screws).

[0003] When the connecting rod big end is connected to the crankshaft, the inner wall of the connecting rod big end is prone to wear, which affects the service life of the engine connecting rod. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-strength automotive engine connecting rod with improved wear resistance, solving the problem that the inner wall of the big end of the existing engine connecting rod is prone to wear when in contact with the crankshaft, thus easily reducing the service life of the connecting rod.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-strength automotive engine connecting rod, comprising a main body assembly, wherein the main body assembly includes:

[0008] The large end is connected to a connector, which is fixedly connected to its outer side wall;

[0009] The small end is fixedly connected to the end of the connector that is furthest from the large end.

[0010] The connecting head and the connecting member are provided with a wear-resistant component, the wear-resistant component comprising:

[0011] A rotating groove is symmetrically arranged around the circumference of the connecting head;

[0012] A wear-resistant shaft is symmetrically and rotatably connected within the rotating groove;

[0013] The connecting ring is rotatably connected to the middle of the wear-resistant shaft body;

[0014] Top covers are symmetrically arranged at both ends of the connecting head, and the wear-resistant shaft is located between the top covers;

[0015] The movable cavity is located between the connecting head and the connecting ring, and the wear-resistant shaft is located inside the movable cavity.

[0016] Preferably, the connector is provided with a keel.

[0017] Preferably, the inner wall of the connecting ring is provided with a wear-resistant layer.

[0018] Preferably, bolts are symmetrically arranged on the top cover, and sealing gaskets are provided on the opposing surfaces of the top cover, with the bolts penetrating the sealing gaskets.

[0019] Preferably, the connecting head and the connecting member are provided with an oil injection assembly, the oil injection assembly comprising:

[0020] The oil inlet is located on the top of the connector;

[0021] An oil storage chamber is located inside the connecting head and the connecting piece, and the top of the oil storage chamber is connected to the oil inlet.

[0022] A plug is provided inside the oil inlet;

[0023] An oil outlet is connected between the oil storage chamber and the movable chamber.

[0024] Preferably, multiple sets of oil outlets are symmetrically arranged, located at the top of the connecting ring and the middle of both sides.

[0025] (III) Beneficial Effects

[0026] Compared with the prior art, this utility model provides a high-strength automotive engine connecting rod, which has the following beneficial effects:

[0027] This connecting rod offers improved wear resistance. In the automotive engine, the crankshaft is mounted on the inner ring of the connecting ring. The connecting ring, instead of the connecting big end, contacts the crankshaft surface. During crankshaft movement, the connecting ring rotates, contacting the outer wear-resistant shaft. This causes the wear-resistant shaft to rotate within a groove, further increasing the lifespan of the connecting big end. This design solves the problem of existing engine connecting rods where the inner wall of the big end easily wears down when in contact with the crankshaft, thus reducing the connecting rod's lifespan. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0030] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0031] Figure 4 This is a schematic diagram of the rotating groove structure in this utility model;

[0032] Figure 5This is a top view cross-sectional structural diagram of the connecting head in this utility model.

[0033] In the picture:

[0034] 1. Main component; 11. Large connector; 12. Connector; 13. Small connector;

[0035] 2. Wear-resistant components; 21. Rotating groove; 22. Wear-resistant shaft; 23. Connecting ring; 24. Top cover; 241. Bolt; 242. Sealing gasket; 25. Movable cavity; 26. Keel; 27. Wear-resistant layer;

[0036] 3. Oil filling assembly; 31. Oil filling port; 32. Oil reservoir; 33. Plug; 34. Oil outlet. Detailed Implementation

[0037] 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.

[0038] Example 1

[0039] See Figure 1-5 A high-strength automotive engine connecting rod includes a main body assembly 1, comprising: a large connecting end 11, to which a connecting member 12 is fixedly connected; and a small connecting end 13, fixedly connected to the end of the connecting member 12 away from the large connecting end 11. Wear-resistant components 2 are provided on the large connecting end 11 and the connecting member 12. The wear-resistant component 2 includes: a rotating groove 21 symmetrically arranged around the large connecting end 11; a wear-resistant shaft 22 symmetrically and rotatably connected within the rotating groove 21; a connecting ring 23 rotatably connected to the middle of the wear-resistant shaft 22; a top cover 24 symmetrically arranged at both ends of the large connecting end 11, with the wear-resistant shaft 22 located between the top covers 24; and a movable cavity 25 formed between the large connecting end 11 and the connecting ring 23, with the wear-resistant shaft 22 located within the movable cavity 25. A keel 26 is provided on the connecting member 12. A wear-resistant layer 27 is provided on the inner sidewall of the connecting ring 23.

[0040] In use, the crankshaft of the car engine is mounted on the inner ring of the connecting ring 23. The connecting ring 23 replaces the connecting head 11 in contact with the crankshaft surface. When the crankshaft moves, the connecting ring 23 rotates, contacting the outer wear-resistant shaft 22. This causes the wear-resistant shaft 22 to rotate within the rotating groove 21, increasing the service life of the connecting head 11. The rib 26 on the connecting part 12 increases the strength of the connecting part 12, thereby reducing the probability of breakage of the connecting head 11, connecting part 12, and connecting small head 13 during use. The wear-resistant layer 27 on the inner wall of the connecting ring 23 increases the wear resistance of the connecting ring 23, thus increasing its service life.

[0041] Example 2

[0042] An auxiliary function has been added based on Embodiment 1.

[0043] See Figure 1-5 Bolts 241 are symmetrically arranged on the top cover 24, and sealing gaskets 242 are arranged on the opposing surfaces of the top cover 24, with the bolts 241 penetrating the sealing gaskets 242. An oil injection assembly 3 is provided on the connecting head 11 and the connecting member 12. The oil injection assembly 3 includes: an oil injection port 31 located at the top of the connecting member 12; an oil storage chamber 32 located inside the connecting head 11 and the connecting member 12, with the top of the oil storage chamber 32 communicating with the oil injection port 31; a plug 33 located inside the oil injection port 31; and an oil outlet 34 communicating between the oil storage chamber 32 and the movable chamber 25. Multiple sets of oil outlets 34 are symmetrically arranged, located at the top and the middle of both sides of the connecting ring 23.

[0044] The bolts 241 on the top cover 24 allow the top cover 24 to be removed from the connecting head 11, making it easier for workers to replace the wear-resistant shaft 22 and the connecting ring 23. Loosen the bolts 241, remove the two top covers 24 from the connecting head 11, and then place the new top covers 24 on the top and bottom of the connecting head 11 respectively. Tighten the bolts 241 to complete the replacement of the top cover 24. There is no need to replace the entire main component 1, thereby increasing the service life of the connecting head 11. During the rotation of the connecting ring 23, the lubrication assembly 3 injects lubricating oil into the movable cavity 25 to reduce the friction between the connecting ring 23 and the wear-resistant shaft 22. The operator removes the plug 33 and periodically injects lubricating oil into the lubrication port 31. The lubricating oil enters the oil storage cavity 32 through the lubrication port 31. The oil storage cavity 32 delivers the lubricating oil to the oil outlet 34, from which lubricating oil is injected into the movable cavity 25. As the wear-resistant shaft 22 and the connecting ring 23 move, the lubricating oil is gradually filled into the movable cavity 25. The multiple oil outlets 34 increase the number of lubrication points, thereby improving the uniformity of lubricating oil addition.

[0045] 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 high-strength automotive engine connecting rod, comprising a main body assembly (1), said main body assembly (1) comprising: The large end (11) is connected to a connector (12) fixedly connected to its outer side wall; The small end (13) is fixedly connected to the end of the connector (12) away from the large end (11); The feature is that: a wear-resistant component (2) is provided on the connecting head (11) and the connecting member (12), and the wear-resistant component (2) includes: A rotating groove (21) is symmetrically arranged on the connecting head (11) around its circumference. The wear-resistant shaft (22) is symmetrically and rotatably connected to the rotating groove (21); The connecting ring (23) is rotatably connected to the middle of the wear-resistant shaft (22); Top covers (24) are symmetrically arranged at both ends of the connecting head (11), and the wear-resistant shaft (22) is located between the top covers (24); The movable cavity (25) is located between the connecting head (11) and the connecting ring (23), and the wear-resistant shaft (22) is located inside the movable cavity (25).

2. The high-strength automotive engine connecting rod according to claim 1, characterized in that: The connector (12) is provided with a keel (26).

3. A high-strength automotive engine connecting rod according to claim 2, characterized in that: The inner wall of the connecting ring (23) is provided with a wear-resistant layer (27).

4. A high-strength automotive engine connecting rod according to claim 3, characterized in that: Bolts (241) are symmetrically arranged on the top cover (24), and sealing gaskets (242) are arranged on the opposite side of the top cover (24), with the bolts (241) penetrating the sealing gaskets (242).

5. A high-strength automotive engine connecting rod according to claim 4, characterized in that: An oil injection assembly (3) is provided on the connecting head (11) and the connecting member (12), the oil injection assembly (3) comprising: The oil inlet (31) is located on the top of the connector (12); An oil storage cavity (32) is located inside the connecting head (11) and the connecting member (12), and the top of the oil storage cavity (32) is connected to the oil injection port (31). A plug (33) is disposed inside the oil inlet (31); The oil outlet (34) is connected between the oil storage chamber (32) and the movable chamber (25).

6. A high-strength automotive engine connecting rod according to claim 5, characterized in that: The oil outlet (34) is symmetrically arranged in multiple sets, located at the top of the connecting ring (23) and the middle of both sides respectively.

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