A crankshaft connecting rod assembly

Abstract

The utility model discloses a kind of crankshaft connecting rod assemblies, including two main journal, multiple cranks are rotatably arranged between two main journal, connecting rod journal is arranged between every adjacent two cranks, the outer rotation of connecting rod journal is provided with metal wear ring, the friction generated when connecting rod journal moves can be reduced by the rolling axle cooperation lubricating oil work of metal wear ring inner wall rotation, to protect connecting rod journal, and connecting rod reciprocating motion will drive its side wall oil storage box motion, when the extrusion block of oil storage box side wall and crank resist, top rod will be driven to move towards the inside of oil storage box, further drive the block far from the leakage hole inside partition plate, at this time, the lubricating oil in the inside of oil storage box will drop through leakage hole, transported to the inside of oil storage tank by oil pipe, to supplement the lubricating oil in the inside of oil storage tank, when extrusion block is far from crank, the block will be plugged leakage hole under the action of spring telescopic rod.

Description

Technical Field

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

[0002] The crankshaft connecting rod mechanism is the main mechanism for the engine to convert thermal energy into mechanical energy. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of rotating mass, periodically changing gas inertial force, and reciprocating inertial force, which causes the crankshaft to be subjected to bending and torsional loads.

[0003] Chinese utility model patent (authorization announcement number CN221503748U) discloses a generator crankshaft connecting rod assembly, including a main shaft. A connecting pin is fixedly connected to the inner wall of the main shaft, and a cylinder connecting assembly is movably connected to the outer wall of the connecting pin. The cylinder connecting assembly includes a clamp disposed on the outer wall of the connecting pin, a connecting rod fixedly connected to the outer wall of the clamp, a sleeve disposed on the outer wall of the connecting rod, and a connecting disc disposed on the outer wall of the connecting rod. Generator connecting assemblies are fixedly connected to both ends of the main shaft. The generator connecting assembly includes an outer cylinder, with several access holes on the inner wall of the outer cylinder and insertion holes on the outer wall of the outer cylinder. In use, the relative position between the connecting rod and the sleeve can be adjusted as needed to adjust the length of the cylinder connecting assembly, which, combined with the use of connecting bolts for fixation, provides high flexibility.

[0004] However, the drawback of the aforementioned existing technology is that sliding friction will also occur between the connecting rod journal and the connecting rod, which will aggravate the wear between the connecting rod journal and the connecting rod over time, reduce the engine transmission efficiency, and even damage the engine. Utility Model Content

[0005] To address the aforementioned issues, a crankshaft connecting rod assembly is provided. The rotating rollers on the inner wall of the metal wear-resistant ring, working in conjunction with lubricating oil, reduce friction on the connecting rod journal during operation, thus protecting the journal. During the reciprocating motion of the connecting rod, the oil reservoir on its side wall moves. When the pressing block on the side wall of the oil reservoir contacts the crank, it moves the push rod inwards, further moving the plug away from the drain hole inside the partition plate. At this point, the lubricating oil inside the oil reservoir drips through the drain hole and is transported to the oil reservoir via the oil supply pipe, replenishing the lubricating oil in the reservoir. When the pressing block moves away from the crank, the plug blocks the drain hole under the action of the spring telescopic rod, preventing lubricating oil from dripping and being wasted.

[0006] To address the problems of existing technologies, this utility model application provides a crankshaft connecting rod assembly, including two main journals, multiple cranks rotatably disposed between the two main journals, a connecting rod journal disposed between each pair of adjacent cranks, a metal wear-resistant ring rotatably disposed outside the connecting rod journal, an outer sleeve disposed outside the metal wear-resistant ring, a connecting rod disposed at the top of the outer sleeve, an oil reservoir for storing lubricating oil being formed inside the metal wear-resistant ring, multiple rollers rotatably disposed on the inner wall of the metal wear-resistant ring to prevent wear of the main journals, and automatic oil injection components disposed on both outer walls of the connecting rod.

[0007] Preferably, the automatic oiling assembly includes an oil storage box disposed on the outer wall of both sides of the connecting rod, the bottom of the oil storage box is connected to an oil delivery pipe, and the other end of the oil delivery pipe is connected to the interior of the oil storage tank.

[0008] Preferably, the oil storage box is provided with a partition plate inside, and the partition plate has a leakage hole for lubricating oil leakage. The inner wall of the oil storage box is provided with symmetrical spring telescopic rods, and the telescopic end of the spring telescopic rod is provided with a connecting block. A plug block for sealing the leakage hole is provided between the two connecting blocks.

[0009] Preferably, a push rod is provided on the outside of the plug, one end of which extends to the outside of the oil reservoir and is provided with a squeezing block that abuts against the crank.

[0010] Preferably, both sides of the extrusion block are sloped.

[0011] Preferably, the top of the oil storage box is connected to an oil inlet pipe for oil inlet.

[0012] The advantages of this utility model application compared to the prior art are: The rollers rotating on the inner wall of the metal wear-resistant ring, in conjunction with the lubricating oil, reduce the friction generated on the connecting rod journal during operation, thus protecting the connecting rod journal. When the connecting rod reciprocates, it drives the oil reservoir on its side wall to move. When the pressing block on the side wall of the oil reservoir comes into contact with the crank, it drives the push rod to move inward into the oil reservoir, further moving the plug away from the drain hole inside the partition plate. At this time, the lubricating oil inside the oil reservoir will fall through the drain hole and be transported to the inside of the oil tank through the oil supply pipe, thereby replenishing the lubricating oil inside the oil tank. When the pressing block moves away from the crank, the plug will block the drain hole under the action of the spring telescopic rod. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a crankshaft connecting rod assembly.

[0014] Figure 2 This is a schematic diagram of the middle connecting rod of a crankshaft connecting rod assembly.

[0015] Figure 3 This is a schematic diagram of the internal structure of a metal wear-resistant ring in a crankshaft connecting rod assembly.

[0016] Figure 4 This is a schematic diagram of the internal structure of the oil reservoir in the battery holder of a crankshaft connecting rod assembly.

[0017] Figure 5 This is a schematic diagram of the structure of a plug in a crankshaft connecting rod assembly.

[0018] Figure 6 This is a schematic diagram of the structure of a crankshaft connecting rod assembly during operation.

[0019] The numbers in the diagram are: 1. Main journal; 2. Outer sleeve; 3. Crank; 4. Connecting rod; 5. Metal wear ring; 6. Oil reservoir; 7. Oil supply pipe; 8. Roller; 9. Oil reservoir; 10. Divider plate; 11. Spring telescopic rod; 12. Plug; 13. Connecting block; 14. Push rod; 15. Extrusion block; 16. Leakage hole; 17. Connecting rod journal. Detailed Implementation

[0020] To further understand the features, technical means, and specific objectives and functions achieved by this utility model application, the following detailed description of this utility model application is provided in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figures 1 to 6 As shown, this utility model application provides: A crankshaft connecting rod assembly includes two main journals 1, with multiple cranks 3 rotatably disposed between the two main journals 1, and a connecting rod journal 17 disposed between each pair of adjacent cranks 3. A metal wear-resistant ring 5 is rotatably disposed on the outside of the connecting rod journal 17, and an outer sleeve 2 is disposed on the outside of the metal wear-resistant ring 5. A connecting rod 4 is disposed on the top of the outer sleeve 2. An oil reservoir 9 for storing lubricating oil is opened inside the metal wear-resistant ring 5, and multiple rollers 8 for preventing wear of the main journals 1 are rotatably disposed on the inner wall of the metal wear-resistant ring 5. Automatic oil injection components are disposed on both outer walls of the connecting rod 4.

[0022] The connecting rod 4 enables the connecting rod journal 17 to perform stable reciprocating motion. During this process, the rotating roller 8 on the inner wall of the metal wear ring 5, along with an appropriate amount of lubricating oil, works in tandem. This design significantly reduces the friction generated by the connecting rod journal 17 during reciprocating motion. This not only effectively reduces energy loss due to friction but also largely protects the connecting rod journal 17 from wear, extending its service life and ensuring the stable operation of the entire mechanical system.

[0023] like Figure 2 and Figure 3As shown, the automatic oil injection assembly includes an oil storage box 6 disposed on the outer walls of both sides of the connecting rod 4. The bottom of the oil storage box 6 is connected to an oil delivery pipe 7, and the other end of the oil delivery pipe 7 is connected to the interior of the oil storage tank 9.

[0024] By utilizing the transmission function of the oil supply pipe 7, the lubricating oil inside the oil storage box 6 can be effectively replenished to the internal space of the oil storage tank 9. This ensures that the roller 8 receives sufficient lubrication during operation, thereby achieving a perfect match between the roller 8 and the oil storage tank 9, ensuring the smooth operation of the entire mechanical system and improving work efficiency.

[0025] like Figure 5 As shown, the oil storage box 6 is provided with a partition plate 10 inside, and the partition plate 10 has a leakage hole 16 for the leakage of lubricating oil. The inner wall of the oil storage box 6 is provided with symmetrical spring telescopic rods 11. The telescopic end of the spring telescopic rod 11 is provided with a connecting block 13, and a plug block 12 for sealing the leakage hole 16 is provided between the two connecting blocks 13.

[0026] By removing the block 12 from the drain hole 16 inside the partition plate 10, the lubricating oil inside the oil reservoir 6 will naturally drip down through the drain hole 16. Subsequently, this dripping lubricating oil will be smoothly transported to the interior space of the oil tank 9 along the pre-designed oil delivery pipe 7. This process effectively achieves timely and precise replenishment of the lubricating oil inside the oil tank 9, ensuring the continuous and stable operation of the lubrication system.

[0027] like Figure 5 As shown, a push rod 14 is provided on the outside of the block 12. One end of the push rod 14 extends to the outside of the oil reservoir 6 and is provided with a pressing block 15 that abuts against the crank 3.

[0028] During the reciprocating motion of connecting rod 4, it not only displaces itself but also moves the oil reservoir 6 on its connected side wall. Specifically, as the side wall of oil reservoir 6 moves with the movement of connecting rod 4, the pressing block 15 on its side wall gradually approaches and eventually contacts crank 3. At the moment of contact, a force is generated, which is transmitted to push rod 14, causing it to move towards the interior of oil reservoir 6. This further causes the plug block 12 to displace, gradually moving it away from the leakage hole 16 inside partition plate 10.

[0029] like Figure 5 As shown, both sides of the extrusion block 15 are sloped.

[0030] By cleverly designing the two sides of the extrusion block 15 as a sloping structure, it can more effectively cooperate with the crank 3, thereby significantly improving the working coordination between the two. This sloping design not only helps to reduce frictional resistance, but also makes the extrusion block 15 move more smoothly during the process, greatly facilitating the displacement operation of the extrusion block 15 and ensuring the operating efficiency and stability of the entire mechanical system.

[0031] like Figure 1 and Figure 2 As shown, the top of the oil storage box 6 is connected to an oil inlet pipe for oil intake.

[0032] The oil inlet pipe allows external lubricating oil to be easily replenished into the oil reservoir 6.

[0033] Working principle: When connecting rod 4 is working, it drives connecting rod journal 17 to reciprocate. The roller 8 rotating on the inner wall of metal wear ring 5, in conjunction with lubricating oil, can reduce the friction generated by connecting rod journal 17 during movement, thereby protecting connecting rod journal 17. When connecting rod 4 reciprocates, it drives the oil reservoir 6 on its side wall to move. When the pressing block 15 on the side wall of oil reservoir 6 abuts against crank 3, it drives push rod 14 to move towards the inside of oil reservoir 6, further driving block block 12 away from the leakage hole 16 inside partition plate 10. At this time, the lubricating oil inside oil reservoir 6 will fall through leakage hole 16 and be transported to the inside of oil tank 9 through oil supply pipe 7, thereby replenishing the lubricating oil inside oil tank 9. When pressing block 15 moves away from crank 3, block block 12 will block leakage hole 16 under the action of spring telescopic rod 11.

[0034] The above embodiments merely illustrate one or several implementations of the crankshaft connecting rod assembly of this utility model application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model application, and these all fall within the protection scope of this utility model application. Therefore, the protection scope of this utility model application should be determined by the appended claims.

[0035] In this utility model application, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model application according to the specific circumstances.

Claims

1. A crankshaft connecting rod assembly, characterized in that, It includes two main journals (1), and multiple cranks (3) are rotatably arranged between the two main journals (1). A connecting rod journal (17) is arranged between each two adjacent cranks (3). A metal wear-resistant ring (5) is rotatably arranged on the outside of the connecting rod journal (17). An outer sleeve (2) is arranged on the outside of the metal wear-resistant ring (5). A connecting rod (4) is arranged on the top of the outer sleeve (2). An oil reservoir (9) for storing lubricating oil is opened inside the metal wear-resistant ring (5). Multiple rollers (8) for preventing wear of the main journals (1) are rotatably arranged on the inner wall of the metal wear-resistant ring (5). Automatic oil injection components are arranged on both outer walls of the connecting rod (4).

2. A crankshaft connecting rod assembly according to claim 1, characterized in that, The automatic oil injection assembly includes an oil storage box (6) disposed on the outer wall of both sides of the connecting rod (4). The bottom of the oil storage box (6) is connected to an oil delivery pipe (7), and the other end of the oil delivery pipe (7) is connected to the interior of the oil storage tank (9).

3. A crankshaft connecting rod assembly according to claim 2, characterized in that, The oil storage box (6) is provided with a partition plate (10) inside. The partition plate (10) has a leak hole (16) for leaking lubricating oil inside. The inner wall of the oil storage box (6) is provided with symmetrical spring telescopic rods (11). The telescopic end of the spring telescopic rod (11) is provided with a connecting block (13). A plug (12) for sealing the leak hole (16) is provided between the two connecting blocks (13).

4. A crankshaft connecting rod assembly according to claim 3, characterized in that, The plug (12) is provided with a push rod (14) on its outside. One end of the push rod (14) extends to the outside of the oil reservoir (6) and is provided with a squeezing block (15) that abuts against the crank (3).

5. A crankshaft connecting rod assembly according to claim 4, characterized in that, Both sides of the extrusion block (15) are sloped.

6. A crankshaft connecting rod assembly according to claim 2, characterized in that, The top of the oil storage box (6) is connected to an oil inlet pipe for oil inlet.

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