Motorcycle transmission chain for high-speed racing car

Abstract

The utility model discloses a motorcycle transmission chain for a high-speed racing car, which comprises an outer chain plate, an inner chain plate, a pin shaft and a lining, the outer chain plate is connected with the inner chain plate through the pin shaft, the pin shaft is sleeved with the lining, the surface of the pin shaft is provided with a spiral groove, a first sealing ring is arranged at the joint of the pin shaft and the outer chain plate, and the first sealing ring is arranged in the spiral groove. And the first sealing ring is arranged in the first groove of the outer chain plate. A spiral groove is formed in the surface of the pin shaft and used for storing lubricating grease, the lubricating grease flows along the spiral groove at high temperature, and the contact face between the pin shaft and the lining is evenly lubricated. And a first sealing ring is arranged at the joint of the pin shaft and the outer chain plate, and is arranged in the first groove of the outer chain plate so as to prevent the lubricating grease from leaking. Through the design of the spiral groove and a multi-sealing-ring system, the continuous self-lubricating function is achieved, friction and abrasion are reduced, the service life of the chain is prolonged, and the overall performance of the racing car is improved.

Description

Technical Field

[0001] The utility model relates to a motorcycle transmission chain, in particular to a motorcycle transmission chain for high-speed racing cars. Background Art

[0002] There are three main types of motorcycle transmission: chain drive, belt drive and shaft drive. Chain drive is the mainstream of motorcycle transmission system at present. Especially in the field of racing, the performance requirements of the chain are extremely high. When the motorcycle is driven fiercely for a short time, the chain transmission system will produce intense friction inside, and the grease will be quickly consumed after rapid heating. The chain will lose its lubrication effect in the middle of the race, causing wear of the bushing, affecting the transmission efficiency and stability, which is also a factor affecting the race results.

[0003] Therefore, there is an urgent need for a high-speed racing motorcycle transmission chain. Utility Model Content

[0004] The utility model aims to provide a transmission chain for a motorcycle used in a high-speed racing car, which can maintain transmission efficiency and stability under high-speed operation and extreme racing conditions.

[0005] The technical solution adopted by the utility model to solve the above problems is: a transmission chain for a high-speed racing motorcycle, comprising an outer chain plate, an inner chain plate, a pin shaft and a bushing, the outer chain plate and the inner chain plate are connected to each other through the pin shaft, the pin shaft sleeve is provided with a bushing, the surface of the pin shaft is provided with a spiral groove, a first sealing ring is provided at the junction of the pin shaft and the outer chain plate, and the first sealing ring is placed in the first groove of the outer chain plate.

[0006] Preferably: the bushing includes a middle section in contact with the sprocket teeth and a connecting section rotatably connected to the inner link plate, the connecting section is provided with a plurality of first through holes, a second sealing ring is provided at the joint between the connecting section and the inner link plate, and the second sealing ring is placed in the second groove of the inner link plate.

[0007] Preferably, the outer link plate and the inner link plate are both provided with a third groove, the two third grooves are arranged in opposite positions, and a third sealing ring is provided between the two third grooves.

[0008] Preferably: a fourth groove is provided at the step of the middle section and the inner side of the inner link plate, the two fourth grooves are arranged opposite to each other, and a fourth sealing ring is provided between the two fourth grooves.

[0009] Preferably, the middle section is provided with a plurality of second through holes.

[0010] Preferably, the first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all made of heat-resistant and oil-resistant rubber materials.

[0011] Preferably, the outer link plate, inner link plate, pin shaft and bushing are made of alloy steel.

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

[0013] The outer surface of the pin of the utility model is designed with a spiral groove, which not only provides storage space for grease, but also allows the grease to flow along the spiral groove when the temperature rises, evenly lubricating the contact surface between the pin and the bushing. In a racing competition, the temperature of the chain will rise due to high-speed operation. The grease in this design melts at high temperatures and flows outward along the spiral groove, achieving continuous self-lubrication, and ensuring the stable performance of the chain throughout the entire competition by reducing friction and wear. The first sealing ring is placed in the first groove of the outer chain plate, which not only ensures that the grease remains sufficient at the necessary locations, but also prevents the leakage of the grease. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a cross-sectional view of a transmission chain of a motorcycle for high-speed racing.

[0015] Figure 2 The utility model is a schematic structural diagram of a transmission chain for a motorcycle used for high-speed racing.

[0016] Figure 3 It is a schematic diagram of lubrication between the pin shaft and the outer link plate in Example 1 of the utility model.

[0017] Figure 4 It is a schematic diagram of lubrication between the connecting section of the bushing and the inner link plate in Example 1 of the utility model.

[0018] Figure 5 It is a schematic diagram of lubrication between the outer link plate and the inner link plate in Example 2 of the utility model.

[0019] Figure 6 It is a schematic diagram of lubrication between the step of the bushing and the inner link plate in Example 3 of the utility model.

[0020] Figure 7 It is a schematic diagram of the operation of the middle section lubricating sprocket teeth of the bushing in Example 4 of the utility model.

[0021] Figure numbers: transmission chain 1, outer link plate 11, inner link plate 12, pin 13, spiral groove 131, bushing 14, middle section 141, connecting section 142, first through hole 143, second through hole 144, step 145, first groove 21, second groove 22, third groove 23, fourth groove 24, first sealing ring 31, second sealing ring 32, third sealing ring 33, fourth sealing ring 34, grease 4, sprocket teeth 5. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0023] Embodiment 1:

[0024] See also Figure 1 - Figure 3 In this embodiment, a high-speed racing motorcycle transmission chain 1 is provided, which is specifically used for high-performance racing motorcycles to provide reliable power transmission under extreme track conditions. This transmission chain 1 is particularly suitable for racing environments that require high durability and low maintenance, such as endurance races and speed events. Specifically, it includes: an outer link plate 11, an inner link plate 12, a pin 13 and a bushing 14. The outer link plate 11 and the inner link plate 12 are connected to each other through the pin 13. The pin sleeve 14 is provided with a bushing 14. The surface of the pin 13 is provided with a spiral groove 131. The joint between the pin 13 and the outer link plate 11 is provided with a first sealing ring 31, and the first sealing ring 31 is placed in the first groove 21 of the outer link plate 11.

[0025] Specifically, in this embodiment, the technician needs to apply grease 4 on the outer surface of the pin 13 in advance, so that the grease 4 is filled in the spiral groove 131, and the bushing 14 is put on the outer side of the pin 13, and then the first sealing ring 31 is put on the outer side of the pin 13. During assembly, the first sealing ring 31 is inserted into the first groove 21 of the outer link plate 11, so that the grease 4 is filled between the pin 13 and the bushing 14, and between the pin 13 and the outer link plate. During the competition, the chain transmission system starts to work, and the intense driving causes the chain temperature to rise, so that the grease 4 melts and flows evenly along the spiral groove 131 to between the pin 13 and the bushing 14, and between the pin 13 and the outer link plate, lubricating the above parts. Among them, the spiral groove 131 spirally extends to the outer connecting plate and ends before the joint between the pin shaft 13 and the outer side of the outer link plate 11. The joint between the pin shaft 13 and the outer side of the outer link plate 11 is sealed by the first sealing ring 31 to prevent the grease 4 from leaking from the gap between the pin shaft 13 and the outer side of the outer connecting plate.

[0026] The outer surface of the pin 13 of the utility model is designed with a spiral groove 131, which not only provides storage space for the grease 4, but also when the temperature rises, the grease 4 can flow along the spiral groove 131 to evenly lubricate the contact surface between the pin 13 and the bushing 14. In a racing competition, the temperature of the chain will rise due to high-speed operation. The grease 4 in this design melts at high temperatures and flows outward along the spiral groove 131, achieving continuous self-lubrication, and ensuring the stable performance of the chain throughout the entire competition by reducing friction and wear. The first sealing ring 31 is placed in the first groove 21 of the outer link plate 11, which not only ensures that the grease 4 remains sufficient at the necessary locations, but also prevents the leakage of the grease 4.

[0027] The bushing 14 includes a middle section 141 in contact with the sprocket wheel teeth 5 and a connecting section 142 rotatably connected to the inner link plate 12. The connecting section 142 is provided with a plurality of first through holes 143. The connecting section 142 is provided with a second sealing ring 32 at the joint of the inner link plate 12. The second sealing ring 32 is placed in the second groove 22 of the inner link plate 12. The connecting section 142 is provided with a plurality of first through holes 143. The first through holes 143 are connected to the pin 13 in the bushing 14, so that the grease 4 can seep out from the first through holes 143 to the outer surface of the connecting section 142 (the joint of the bushing 14 and the inner link plate 12) when melted, so as to achieve a self-lubricating effect. Among them, a second sealing ring 32 is provided at one end of the connecting section 142, and the sealing ring is placed in the second groove 22 of the inner link plate 12 to prevent the grease 4 from leaking from the gap between the bushing 14 and the inner side of the inner link plate 12, so as to achieve a lasting lubricating effect.

[0028] Embodiment 2:

[0029] See also Figure 4 , combined with the effects of the first sealing ring 31 and the second sealing ring 32, the joint between the pin shaft 13 and the outer side of the outer link plate 11 is oil-sealed by the first sealing ring 31, and the joint between the pin shaft 13 and the inner side of the inner link plate 12 is oil-sealed by the second sealing ring 32, so that the grease 4 can only overflow from the contact side of the outer link plate 11 and the inner link plate 12 (the joint between the pin shaft 13 and the inner side of the outer link plate 11, and the joint between the bushing 14 and the outer side of the inner link plate 12), thereby achieving the lubrication effect between the outer link plate 11 and the inner link plate 12. Figure 5 The outer link plate 11 and the inner link plate 12 are both provided with a third groove 23, and the two third grooves 23 are arranged relatively to each other. The third sealing ring 33 is placed in the two third grooves 23 between the outer link plate 11 and the inner link plate 12, which can effectively prevent the grease 4 from flowing out from the gap between the outer link plate 11 and the inner link plate 12, thereby achieving continuous lubrication between the outer link plate 11 and the inner link plate 12.

[0030] Embodiment 3:

[0031] See also Figure 6The step 145 of the middle section 141 and the inner side of the inner link plate 12 are both provided with a fourth groove 24, the two fourth grooves 24 are arranged in opposite positions, and a fourth sealing ring 34 is arranged between the two fourth grooves 24. During the chain transmission process, there is not only contact friction between the outer link plate 11 and the inner link plate 12, but also contact friction between the bushing 14 (at the step 145 of the middle section 141) and the inner link plate 12 (the inner side). After melting, the grease 4 can not only overflow from the contact side of the outer link plate 11 and the inner link plate 12, but also flow out from the gap between the bushing 14 and the inner side of the inner link plate 12, so as to achieve the lubrication effect between the bushing 14 (at the step 145 of the middle section 141) and the inner link plate 12 (the inner side). The fourth sealing ring 34 can effectively prevent the grease 4 from overflowing from between the bushing 14 and the inner link plate 12, so as to achieve continuous lubrication.

[0032] Embodiment 4:

[0033] See also Figure 7 The middle section 141 is provided with a plurality of second through holes 144. In this embodiment, the middle section 141 of the bushing 14 needs to cooperate with the sprocket teeth 5 for transmission. During the transmission process, the friction heats up and transfers the heat to the inner pin 13. After the pin 13 heats up, the grease 4 in the spiral groove 131 gradually melts. The melted grease 4 seeps out from the second through holes 144 to the outer surface of the middle section 141. When the middle section 141 cooperates with the sprocket teeth 5 for transmission, the grease 4 is transferred and attached to the surface of the sprocket teeth 5, ensuring that the sprocket teeth 5 are fully lubricated when rotating at high speed, reducing the friction with the chain and improving the transmission efficiency.

[0034] The first sealing ring 31, the second sealing ring 32, the third sealing ring 33 and the fourth sealing ring 34 of the utility model are all made of heat-resistant and oil-resistant rubber materials, such as fluororubber (Viton) or silicone rubber (Silicone), which can provide good sealing performance and chemical resistance. In addition, polyurethane (PU) can also be selected because of its excellent wear resistance and elasticity. The first sealing ring 31, the second sealing ring 32, the third sealing ring 33 and the fourth sealing ring 34 are O-type or X-type sealing rings.

[0035] The outer link plate 11, the inner link plate 12, the pin 13 and the bushing 14 are made of alloy steel. The alloy steel has high strength and can withstand power transmission and external impact during high-speed operation. The hardness and wear resistance of the alloy steel make the chain less prone to wear during long-term use, thereby extending the service life. Especially in the high-speed racing environment, the chain needs to withstand constantly changing tension, and the tensile resistance of the alloy steel ensures the stability of the chain.

[0036] The above contents described in this specification are merely examples of the present utility model. Those skilled in the art of the present utility model may make various modifications or additions to the specific embodiments described, or replace them in similar ways, as long as they do not deviate from the contents of the present utility model specification or exceed the scope defined in the claims, they shall all fall within the protection scope of the present utility model.

Claims

1. A transmission chain for a high-speed racing motorcycle, comprising an outer link plate, an inner link plate, a pin and a bushing, characterized in that: The outer link plate and the inner link plate are connected to each other through a pin shaft, the pin shaft sleeve is provided with a bushing, a spiral groove is opened on the surface of the pin shaft, a first sealing ring is provided at the joint of the pin shaft and the outer link plate, and the first sealing ring is placed in the first groove of the outer link plate.

2. A high-speed racing motorcycle transmission chain according to claim 1, characterized in that: The bushing includes a middle section in contact with the sprocket teeth and a connecting section rotatably connected to the inner link plate. The connecting section is provided with a plurality of first through holes. A second sealing ring is provided at the joint between the connecting section and the inner link plate. The second sealing ring is placed in the second groove of the inner link plate.

3. A high-speed racing motorcycle transmission chain according to claim 2, characterized in that: The outer link plate and the inner link plate are both provided with a third groove, the two third grooves are arranged in opposite positions, and a third sealing ring is provided between the two third grooves.

4. A high-speed racing motorcycle transmission chain according to claim 2, characterized in that: The step of the middle section and the inner side of the inner link plate are both provided with fourth grooves, the two fourth grooves are arranged in opposite positions, and a fourth sealing ring is arranged between the two fourth grooves.

5. A transmission chain for a high-speed racing motorcycle according to claim 4, characterized in that: The middle section is provided with a plurality of second through holes.

6. A transmission chain for a high-speed racing motorcycle according to any one of claims 3 or 4, characterized in that: The first sealing ring, the second sealing ring, the third sealing ring and the fourth sealing ring are all made of heat-resistant and oil-resistant rubber materials.

7. A transmission chain for a high-speed racing motorcycle according to claim 1, characterized in that: The outer link plate, inner link plate, pin shaft and bushing are made of alloy steel material.

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