Wear-resistant connecting rod

Abstract

The utility model relates to the technical field of connecting rods, in particular to a wear-resistant connecting rod which comprises a rod body, a lining supporting mechanism is fixedly welded to the top end of the rod body and comprises a supporting seat, an annular groove and contact grooves are formed in the supporting seat, the annular groove is located in the middle of the interior of the supporting seat, and the contact grooves are located on the two sides of the annular groove. Positioning holes are formed in the top end and the bottom end of the inner side of the supporting seat, a connecting mechanism is arranged on the inner side of each positioning hole and comprises a positioning block, each positioning block is clamped on the inner side of the corresponding positioning hole, a connecting plate is fixedly connected to the top end of each positioning block, and a flowing groove is formed in the middle of the outer surface of each connecting plate; according to the connecting rod small-end bush, the lubricating effect of the contact portion of the connecting rod small-end bush and the supporting base is remarkably improved, abrasion resistance is improved, and long-term stable operation of heavy mechanical equipment is guaranteed.

Description

Technical Field

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

[0002] Connecting rods are key components in automobiles and mechanical equipment. They connect the piston and crankshaft and their main function is to convert the reciprocating motion of the piston into the rotational motion of the crankshaft, thereby outputting power. During the working cycle of the engine, the connecting rod is constantly subjected to pressure, tension, and the resulting bending and torsional torques. Therefore, the connecting rod must have sufficient strength and rigidity, as well as good wear resistance and corrosion resistance.

[0003] Connecting rods typically consist of a connecting rod body, connecting rod big end cap, connecting rod small end bushing, connecting rod bolts (or connecting rod nuts), and connecting rod bearings (or connecting rod bearings). Among these, the connecting rod body is the main part of the connecting rod. Its shape is usually "I" or "I". The big end is connected to the crank pin of the crankshaft, and the small end is connected to the piston pin. In heavy machinery, excavators, and other equipment that bears heavy loads and frequent impacts, the connecting rod is a core transmission component, and its performance is crucial to ensuring the overall stability of the equipment and extending its service life.

[0004] For heavy machinery, the connection between the small end bushing and the connecting rod is prone to wear under huge mechanical stress and impact load. Traditional lubrication methods have obvious limitations and are difficult to form a sufficient lubricating oil film. When the oil film thickness is insufficient, the metal surfaces between the connecting rod bushing and the connecting rod come into direct contact, increasing friction and aggravating wear, which seriously affects the long-term stable operation of the equipment. Therefore, a wear-resistant connecting rod is proposed to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant connecting rod to solve the problem that it is difficult to form a sufficient lubricating oil film at the connection between the connecting rod small end bushing and the connecting rod. When the oil film thickness is insufficient, the metal surfaces between the connecting rod bushing and the connecting rod come into direct contact, increasing friction and aggravating wear.

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

[0007] A wear-resistant connecting rod includes a rod body, with a bushing support mechanism welded and fixed to the top of the rod body. The bushing support mechanism includes a support base, with an annular groove and a contact groove inside the support base. The annular groove is located in the middle of the support base, and the contact groove is located on both sides of the annular groove, communicating with it. Positioning holes are provided at the top and bottom of the inner side of the support base. A connecting mechanism is provided inside the positioning holes. The connecting mechanism includes a positioning block, which is engaged inside the positioning holes. A connecting plate is fixedly connected to the top of the positioning block. A flow groove is provided in the middle of the outer surface of the connecting plate. A connecting groove communicating with the annular groove is provided on one side of the top of the support base. An installation mechanism is fixedly connected inside the connecting groove. The installation mechanism includes an installation box, with an installation base installed inside the installation box. A magnetic plate is fixedly connected to the outer side of the installation base, and oil-absorbing cotton is installed inside the magnetic plate. A collection plate is fixedly connected to the upper surface of the installation box.

[0008] As a further optimization of this utility model, the cross-sectional shape of the connecting groove is square, the connecting groove is an inclined structure, and the included angle between the connecting groove and the top positioning hole is 60°.

[0009] As a further optimization of this utility model, the axis of the annular groove is adapted to the axis of the contact groove, and four contact grooves are provided on one side of the annular groove. The four contact grooves are arranged in a ring at equal intervals, and the included angle between the contact groove and the annular groove is 90°.

[0010] As a further optimization of this utility model, the following features are provided: the two positioning holes are arranged symmetrically from top to bottom; the cross-sectional shape of the positioning holes is "I"-shaped; the shape of the outer side of the positioning block matches the shape of the inner side of the positioning hole; the shape of the connecting plate is arc-shaped; the shape of the upper surface of the connecting plate matches the shape of the inside of the support base; and a number of flow grooves are provided, with the flow grooves and the annular grooves being parallel to each other.

[0011] As a further optimization of this utility model, the following features are provided: the projected shape of the mounting box is square; the angle of the mounting box is adapted to the angle of the connecting groove; the top of the mounting box extends above the connecting groove; support blocks are fixedly connected to the four corner areas inside the mounting box; and the four support blocks are respectively fixedly connected to the four corner areas outside the mounting base.

[0012] As a further optimization of this utility model, the mounting base and the mounting box are spaced apart, the inner side of the mounting base is provided with a threaded groove, and the interior of the mounting base is connected to the interior of the support base.

[0013] As a further optimization of this utility model, the number of magnetic plates is set to eight, the shape of the magnetic plates is corrugated, each pair of magnetic plates forms a group, the four groups of magnetic plates are located at the center of the four outer sides of the mounting base, oil-absorbing cotton is embedded between each pair of magnetic plates, and there is a gap between the outer side of the magnetic plate and the support block.

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

[0015] In this invention, the bushing support mechanism, connecting mechanism, and installation mechanism significantly improve the lubrication effect at the contact point between the connecting rod small end bushing and the support seat. The installation box, collecting plate, annular groove, and contact groove ensure that the lubricating oil in the engine housing can flow smoothly and fully cover the contact area, forming a stable lubricating oil film and improving wear resistance. Simultaneously, the corrugated magnetic plate and oil-absorbing cotton work together to effectively adsorb and filter metal debris in the lubricating oil, reducing wear. Furthermore, the connecting plate provides support for the connecting rod small end bushing, while the flow groove design on its surface further ensures smooth lubricating oil flow, guaranteeing the long-term stable operation of heavy machinery. 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 cross-sectional structural diagram of the bushing support mechanism of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the support base of this utility model;

[0019] Figure 4 This is a schematic diagram of the connecting mechanism of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the installation mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the magnetic plate of this utility model.

[0022] In the diagram: 1. Rod; 2. Bushing support mechanism;

[0023] 21. Support base; 22. Annular groove; 23. Contact groove; 24. Positioning hole;

[0024] 25. Connecting mechanism; 251. Positioning block; 252. Connecting plate; 253. Flow channel;

[0025] 26. Connecting slot;

[0026] 27. Installation mechanism; 271. Installation box; 272. Support block; 273. Mounting base; 274. Threaded groove; 275. Magnetic plate; 276. Oil-absorbing cotton; 277. Collection plate. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] Please see Figure 1-6 This utility model provides a technical solution:

[0030] A wear-resistant connecting rod includes a rod body 1, with a bushing support mechanism 2 welded and fixed to the top of the rod body 1. The bushing support mechanism 2 includes a support base 21, with an annular groove 22 and a contact groove 23 inside the support base 21. After lubricating oil accumulates in the annular groove 22, it flows further to the periphery of the connecting rod small end bushing through the contact groove 23, allowing the lubricating oil to act more directly on the parts that need lubrication. The annular groove 22 is located in the middle of the support base 21, and the contact groove 23 is located on both sides of the annular groove 22. The axis of groove 22 is adapted to the axis of contact groove 23. Four contact grooves 23 are provided on one side of the annular groove 22, arranged equidistantly in a ring. The included angle between the contact grooves 23 and the annular groove 22 is 90°. The annular groove 22 and the contact grooves 23 are connected. Positioning holes 24 are provided at both the top and bottom of the inner side of the support base 21. A connecting mechanism 25 is provided inside the positioning holes 24 to provide support for the small end bushing of the connecting rod. The connecting mechanism 25 includes a positioning block 251. 1. The positioning block 251 is fixedly connected to the top of the positioning block 252, which is made of high-temperature resistant ceramic material and has high compressive strength. It can withstand large pressure without damage. A flow groove 253 is opened in the middle of the outer surface of the connecting plate 252. A connecting groove 26 communicating with the annular groove 22 is opened on one side of the top of the support base 21. An installation mechanism 27 is fixedly connected to the inner side of the connecting groove 26. The installation mechanism 27 includes an installation box 271. An installation base 273 is installed inside the installation box 271. A magnetic plate 275 that can absorb metal debris in the lubricating oil is fixedly connected to the outer side of the installation base 273. An oil-absorbing cotton 276 is installed inside the magnetic plate 275. A collection plate 277 is fixedly connected to the upper surface of the installation box 271. The lubricating oil in the engine housing will enter the gap between the support block 272 and the installation base 273 inside the installation box 271 through the collection plate 277. The collection plate 277 reduces the overflow of lubricating oil and facilitates the collection of lubricating oil.

[0031] As a further implementation of this solution, the cross-sectional shape of the connecting groove 26 is square, the connecting groove 26 is an inclined structure, the included angle between the connecting groove 26 and the top positioning hole 24 is 60°, and the connecting groove 26 is in an inclined state, which facilitates the fixing of the connecting rod small end bushing and facilitates the entry of lubricating oil into the contact part between the connecting rod small end bushing and the support seat 21.

[0032] As a further implementation of this solution, the two positioning holes 24 are arranged symmetrically at the top and bottom. The cross-sectional shape of the positioning holes 24 is "I". The shape of the outer side of the positioning block 251 matches the shape of the inner side of the positioning hole 24. The shape of the connecting plate 252 is arc-shaped. The shape of the upper surface of the connecting plate 252 matches the shape of the inside of the support base 21. Several flow grooves 253 are provided. The flow grooves 253 and the annular groove 22 are parallel to each other. This arrangement of the flow grooves 253 on the surface of the connecting plate 252 will not obstruct the flow of lubricating oil, ensuring the smoothness of the lubrication process.

[0033] As a further implementation of this solution, the projected shape of the mounting box 271 is square, the angle of the mounting box 271 is adapted to the angle of the connecting groove 26, the top of the mounting box 271 extends to the top of the connecting groove 26, and the four corner areas inside the mounting box 271 are fixedly connected to the support blocks 272. The four support blocks 272 are respectively fixedly connected to the four corner areas outside the mounting base 273. This arrangement improves the firmness between the mounting box 271 and the mounting base 273, making it less likely to loosen or fall off.

[0034] As a further implementation of this solution, there is a gap between the mounting base 273 and the mounting box 271. The inner side of the mounting base 273 is provided with a threaded groove 274. The interior of the mounting base 273 is connected to the interior of the support base 21. With the cooperation of the external connecting parts, the small end bushing of the connecting rod is fixed through the threaded groove 274, which makes the installation convenient.

[0035] As a further implementation of this solution, eight magnetic plates 275 are provided. The magnetic plates 275 are corrugated in shape. Each pair of magnetic plates 275 forms a group, and the four groups of magnetic plates 275 are located at the center of the four outer sides of the mounting base 273. Oil-absorbing cotton 276 is embedded between each pair of magnetic plates 275. There is a gap between the outer side of the magnetic plates 275 and the support block 272. This arrangement of the magnetic plates 275 not only provides support for the oil-absorbing cotton 276, but also ensures that the lubricating oil comes into full contact with the corrugated magnetic plates 275 and the oil-absorbing cotton 276 during the flow of lubricating oil. The outer side of the corrugated magnetic plates 275 increases the contact area with the lubricating oil, and the magnetic properties can attract metal debris in the lubricating oil.

[0036] Workflow: First, insert the positioning block 251 below the connecting plate 252 into the inner side of the corresponding positioning hole 24 to complete the installation of the connecting plate 252. Then, install the connecting rod small end bushing of the same specification, compatible with the support base 21, inside the support base 21. Adjust the position of the connecting rod small end bushing mounting hole to correspond to the position below the threaded groove 274. With the cooperation of external connectors, fix the connecting rod small end bushing through the threaded groove 274 to complete the installation and fixation of the connecting rod small end bushing, ensuring proper contact between the connecting rod small end bushing and the support base 21. Sufficient protection is required for the contact area to form a adequate lubricating oil film. Since the angle between the connecting groove 26 and the top positioning hole 24 is 60°, and the angle of the mounting box 271 matches the angle of the connecting groove 26, the lubricating oil inside the engine housing will enter the gap between the support block 272 and the mounting base 273 inside the mounting box 271 through the collecting plate 277 during the up-and-down movement of the rod 1. The collecting plate 277 reduces lubricating oil overflow and facilitates lubricating oil collection. Four [unclear text - possibly related to the mounting box 271] are located inside the mounting box 271. The corner support block 272 provides stable support for the mounting base 273 and the internal connecting parts. Lubricating oil flows through the gap between the support block 272 and the mounting base 273 into the annular groove 22 on the inner side of the lower support base 21. During the flow, the lubricating oil comes into full contact with the corrugated magnetic plate 275 and the oil-absorbing cotton 276. The outer side of the corrugated magnetic plate 275 increases the contact area with the lubricating oil. Utilizing magnetism, it can attract metal debris in the lubricating oil, reducing the impact of metal debris on the interior of the support base 21. The oil-absorbing cotton... 276 utilizes its water absorption property to absorb sufficient reserve lubricating oil for convenient later use. Under pressure, the lubricating oil fills the interior of the annular groove 22 and flows into the contact grooves 23 on both sides. This forms a sufficient oil film at the contact point between the connecting rod small end bushing and the support seat 21, improving the wear resistance of the contact point. The corresponding upper and lower connecting plates 252 provide effective support for the middle of the connecting rod small end bushing, and the flow grooves 253 opened on the surface of the connecting plate 252 do not obstruct the flow of lubricating oil, ensuring a smooth lubrication process.

[0037] 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 wear-resistant connecting rod, comprising a rod body (1), characterized in that: The top end of the rod (1) is welded and fixed with a bushing support mechanism (2). The bushing support mechanism (2) includes a support base (21). The support base (21) has an annular groove (22) and a contact groove (23) inside. The annular groove (22) is located in the middle of the support base (21), and the contact groove (23) is located on both sides of the annular groove (22). The annular groove (22) and the contact groove (23) are connected. Positioning holes (24) are provided at the top and bottom of the inner side of the support base (21). A connecting mechanism (24) is provided inside the positioning holes (24). 5) The connecting mechanism (25) includes a positioning block (251), which is engaged inside the positioning hole (24). A connecting plate (252) is fixedly connected to the top of the positioning block (251). A flow groove (253) is provided in the middle of the outer surface of the connecting plate (252). A connecting groove (26) communicating with the annular groove (22) is provided on one side of the top of the support base (21). An installation mechanism (27) is fixedly connected to the inner side of the connecting groove (26). The installation mechanism (27) includes an installation box (271), an installation base (273) is installed inside the installation box (271), a magnetic plate (275) is fixedly connected to the outside of the installation base (273), an oil-absorbing cotton (276) is installed on the inside of the magnetic plate (275), and a collection plate (277) is fixedly connected to the upper surface of the installation box (271).

2. The wear-resistant connecting rod according to claim 1, characterized in that: The cross-sectional shape of the connecting groove (26) is square, the connecting groove (26) is an inclined structure, and the included angle between the connecting groove (26) and the top positioning hole (24) is 60°.

3. The wear-resistant connecting rod according to claim 1, characterized in that: The axis of the annular groove (22) is adapted to the axis of the contact groove (23). There are four contact grooves (23) on one side of the annular groove (22). The four contact grooves (23) are arranged in a ring at equal intervals. The included angle between the contact groove (23) and the annular groove (22) is 90°.

4. The wear-resistant connecting rod according to claim 1, characterized in that: The two positioning holes (24) are arranged symmetrically at the top and bottom. The cross-sectional shape of the positioning hole (24) is "I". The shape of the outer side of the positioning block (251) is adapted to the shape of the inner side of the positioning hole (24). The shape of the connecting plate (252) is arc-shaped. The shape of the upper surface of the connecting plate (252) is adapted to the shape of the inside of the support base (21). The number of flow grooves (253) is set in several. The flow grooves (253) are parallel to each other with the annular groove (22).

5. A wear-resistant connecting rod according to claim 1, characterized in that: The projected shape of the mounting box (271) is square. The angle of the mounting box (271) is adapted to the angle of the connecting groove (26). The top of the mounting box (271) extends above the connecting groove (26). Support blocks (272) are fixedly connected to the four corner areas inside the mounting box (271). The four support blocks (272) are fixedly connected to the four corner areas outside the mounting base (273).

6. A wear-resistant connecting rod according to claim 1, characterized in that: There is a gap between the mounting base (273) and the mounting box (271). The inner side of the mounting base (273) is provided with a threaded groove (274). The interior of the mounting base (273) is connected to the interior of the support base (21).

7. A wear-resistant connecting rod according to claim 1, characterized in that: The number of magnetic plates (275) is eight. The magnetic plates (275) are corrugated. Each pair of magnetic plates (275) forms a group. The four groups of magnetic plates (275) are located at the center of the four outer sides of the mounting base (273). Oil-absorbing cotton (276) is embedded between each pair of magnetic plates (275). There is a gap between the outer side of the magnetic plates (275) and the support block (272).

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