A double gear shaft

Abstract

The utility model relates to duplex gear technical field, and disclose a duplex gear shaft, including the main shaft, the outer surface of main shaft installs the rotating bearing, the outer surface of rotating bearing installs the fixed block, the back of fixed block installs the connecting block, the outer surface of connecting block is equipped with the oil delivery hole, the utility model discloses through the oil delivery hole to the oil delivery pipe delivery lubricating oil, the multiple circular holes of oil delivery pipe inner wall can evenly distribute lubricating oil to each key lubrication site, this kind of accurate and even oil supply mode, completely changed the traditional duplex gear shaft passive situation of relying on lubricating oil leakage lubrication, effectively promoted the lubrication efficiency, ensured that the easily worn part got sufficient lubrication, reduced the component wear and tear due to the lubrication deficiency, in addition, through the rotating bearing is connected with the oil delivery pipe, makes the main shaft when high -speed rotation, the oil delivery pipe can synchronous rotation, avoided the friction and the collision of the intercomponent due to the relative movement, avoided the damage of spare part.

Description

Technical Field

[0001] This utility model relates to the field of double gear technology, specifically a double gear shaft. Background Technology

[0002] As an indispensable key component in mechanical transmission systems, double gears are widely used in various mechanical equipment due to their ability to transmit different speeds and torques. Motorcycle gearboxes are one such typical application scenario. In the power transmission chain of a motorcycle, the gearbox plays an important role in adjusting power output according to driving conditions. Double gears act as the power conversion hub in this process. Through precise meshing with other gears in the gearbox, they achieve gear shifting, allowing the motorcycle to obtain appropriate power output in different driving conditions such as starting, accelerating, and climbing. The rationality of its structural design and the level of transmission efficiency directly affect the motorcycle's riding smoothness, power performance, and even fuel economy. Therefore, it occupies a pivotal position in the overall operation of a motorcycle gearbox.

[0003] Traditional double gear shafts are difficult to lubricate, relying solely on slow oil seepage for lubrication. This results in the gear shaft surface being covered with a lot of oil stains, making it difficult to remove and clean. To solve the above problems, we propose a double gear shaft. Summary of the Invention

[0004] The purpose of this invention is to provide a double gear shaft to solve the problem of difficult lubrication of traditional double gear shafts.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a double gear shaft, including a main shaft, a rotary bearing mounted on the outer surface of the main shaft, a fixing block mounted on the outer surface of the rotary bearing, a connecting block mounted on the back of the fixing block, an oil supply hole opened on the outer surface of the connecting block, and multiple oil supply pipes connected to the back of the connecting block, each oil supply pipe having multiple circular holes opened on its inner wall.

[0006] Preferably, the spindle has a threaded hole on its front side, and a protective shell is installed on the front side of the spindle.

[0007] Preferably, a fixing screw is installed on the front of the protective shell, and the end of the fixing screw near the protective shell passes through the protective shell and is threaded into the inner wall of the threaded hole.

[0008] Preferably, a blocking block is installed on the outer surface of the spindle, and a limit block is installed on the outer surface of the spindle.

[0009] Preferably, a first gear is mounted on the outer surface of the spindle, and multiple mounting blocks are mounted on the outer surface of the spindle.

[0010] Preferably, the inner wall of the first gear is provided with multiple mounting grooves, and a spacing block is mounted on the front side of the first gear.

[0011] Preferably, a roller gear is installed on the front side of the spacing block, and the inner wall of the roller gear is provided with multiple oil delivery grooves.

[0012] Preferably, a second gear is rotatably mounted on the outer surface of the roller gear, and limit rings are installed at both the front and rear ends of the second gear, with a disc-shaped gasket installed on the front of one of the limit rings.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention delivers lubricating oil to the oil supply pipe through an oil inlet. Multiple circular holes on the inner wall of the oil supply pipe can evenly distribute the lubricating oil to various key lubrication points. This precise and uniform oil supply method completely changes the passive situation of traditional double gear shafts relying on lubricating oil leakage for lubrication, effectively improving lubrication efficiency, ensuring that easily worn parts are fully lubricated, and reducing component wear caused by insufficient lubrication. In addition, the oil supply pipe is connected to the rotating bearing, so that the oil supply pipe can rotate synchronously when the main shaft rotates at high speed, avoiding friction and collision between components caused by relative motion, and preventing damage to parts. Attached Figure Description

[0014] Figure 1 A front view of a double gear shaft provided by this utility model; Figure 2 A left sectional view of a double gear shaft provided by this utility model; Figure 3 A rear sectional view of a double gear shaft provided by this utility model; Figure 4 Right sectional view of a double gear shaft provided by this utility model; Figure 5 The present invention provides a double gear in Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0015] In the diagram: 1. Main shaft; 2. Rotary bearing; 3. Fixing block; 4. Connecting block; 5. Oil inlet; 6. Oil pipe; 7. Circular hole; 8. Threaded hole; 9. Protective shell; 10. Fixing screw; 11. Barrier block; 12. First gear; 13. Spacing block; 14. Roller gear; 15. Oil inlet groove; 16. Limiting ring; 17. Second gear; 18. Disc-shaped gasket; 19. Mounting groove; 20. Mounting block; 21. Limiting block. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 As shown, a double gear shaft includes a main shaft 1. A rotary bearing 2 is mounted on the outer surface of the main shaft 1 and connected to an oil supply pipe 6 to ensure that the oil supply pipe 6 rotates synchronously during the rotation of the main shaft 1, avoiding damage to components due to relative motion. A fixing block 3 is mounted on the outer surface of the rotary bearing 2, and a connecting block 4 is mounted on the back of the fixing block 3. An oil supply hole 5 is opened on the outer surface of the connecting block 4, which is the inlet for lubricating oil to enter the gear shaft lubrication system. Multiple oil supply pipes 6 are connected to the back of the connecting block 4, which are responsible for delivering the lubricating oil distributed by the connecting block 4 to various parts that need lubrication. This is the key channel for lubricating oil transmission, ensuring that the lubricating oil can be accurately delivered to the target area. Multiple circular holes 7 are opened on the inner wall of each oil supply pipe 6, which can evenly distribute the lubricating oil in the oil supply pipe 6, so that the lubricating oil can act more widely and evenly on the lubrication parts, improving the lubrication effect.

[0018] The spindle 1 has a threaded hole 8 on its front side and a protective shell 9 is installed on its front side. This shell serves a protective function, preventing external dust, impurities, and other contaminants from entering the components on the front side of the spindle, thus avoiding these contaminants from affecting the normal operation of the equipment and protecting the internal components.

[0019] The protective shell 9 is equipped with a fixing screw 10 on the front side. Its main function is to firmly fix the protective shell 9 to the front side of the spindle 1, ensuring that the protective shell 9 will not loosen or fall off during the operation of the equipment, thus ensuring the protective effect. The fixing screw 10 is threaded into the inner wall of the threaded hole 8 after passing through the protective shell 9.

[0020] A blocking block 11 is installed on the outer surface of the spindle 1, and a limit block 21 is installed on the outer surface of the spindle 1.

[0021] A first gear 12 is mounted on the outer surface of the spindle 1, and multiple mounting blocks 20 are mounted on the outer surface of the spindle 1.

[0022] The inner wall of the first gear 12 is provided with multiple mounting grooves 19, and a spacing block 13 is installed on the front of the first gear 12 to form a certain gap between the first gear 12 and the roller gear 14, so as to avoid direct contact between the two and generate friction, and at the same time ensure that the two maintain a proper relative position during transmission.

[0023] A roller gear 14 is installed on the front of the spacing block 13. Multiple oil delivery grooves 15 are opened on the inner wall of the roller gear 14 to reserve installation positions for the oil delivery pipe 6.

[0024] A second gear 17 is rotatably mounted on the outer surface of the roller gear 14. Limiting rings 16 are installed at both the front and rear ends of the second gear 17. A disc-shaped gasket 18 is installed on the front of one of the limiting rings 16 to reduce the vibration of the second gear 17 during operation, while ensuring close contact between the second gear 17 and related components, thereby improving operational stability.

[0025] Working Principle: In the lubrication system, to ensure smooth operation of the gear shaft, lubricating oil is injected through the oil inlet 5 on the outer surface of the connecting block 4, and then precisely delivered to various parts requiring lubrication through multiple oil pipes 6 connected to the back of the connecting block 4. Multiple circular holes 7 on the inner wall of the oil pipes 6 evenly distribute the lubricating oil, ensuring accurate application of the lubricating oil to the key lubrication points of the first gear 12 and the roller gear 14. In particular, the multiple oil grooves 15 on the inner wall of the roller gear 14 provide installation space for the oil pipes 6, allowing the lubricating oil to penetrate deeper and thus lubricate more effectively. The main shaft 1, as the core component, drives the entire system. The first gear 12 is fixed to the main shaft 1 through the tight fit between the mounting block 20 and the mounting groove 19, and rotates synchronously with the main shaft 1, meshing with other gears to achieve effective power. In the transmission process, the roller gear 14 maintains an appropriate distance from the first gear 12 through the spacing block 13. The second gear 17 on its outer surface can rotate according to the transmission requirements. The function of the limiting ring 16 is to prevent the second gear 17 from axially shifting during rotation, while the disc-shaped shim 18 plays a role in buffering and pre-tightening to ensure the stability of the second gear 17's operation. The blocking block 11 and the limiting block 21 are used to axially limit the gears and other components to prevent them from excessive displacement during operation. The protective shell 9 is connected to the threaded hole 8 on the front of the main shaft 1 through the fixing screw 10 to protect the components on the front of the main shaft 1 and prevent external dust and impurities from entering, thereby ensuring the normal operation of the equipment. The rotary bearing 2 ensures that the oil pipe 6 can also rotate when the main shaft 1 rotates, preventing damage to the components caused by rotation.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] 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 double-gear shaft, comprising a main shaft (1), characterized in that, A rotary bearing (2) is installed on the outer surface of the main shaft (1). A fixing block (3) is installed on the outer surface of the rotary bearing (2). A connecting block (4) is installed on the back of the fixing block (3). An oil supply hole (5) is opened on the outer surface of the connecting block (4). Multiple oil supply pipes (6) are connected to the back of the connecting block (4). Multiple circular holes (7) are opened on the inner wall of each oil supply pipe (6).

2. The double gear shaft according to claim 1, characterized in that: The main spindle (1) has a threaded hole (8) on its front side and a protective shell (9) is installed on its front side.

3. A double gear shaft according to claim 2, characterized in that: A fixing screw (10) is installed on the front of the protective shell (9). The end of the fixing screw (10) near the protective shell (9) passes through the protective shell (9) and is threaded to the inner wall of the threaded hole (8).

4. A double gear shaft according to claim 1, characterized in that: The outer surface of the main shaft (1) is equipped with a blocking block (11) and a limiting block (21).

5. A double gear shaft according to claim 1, characterized in that: The outer surface of the spindle (1) is fitted with a first gear (12) and a plurality of mounting blocks (20) are fitted on the outer surface of the spindle (1).

6. A double gear shaft according to claim 5, characterized in that: The inner wall of the first gear (12) is provided with multiple mounting slots (19), and a spacing block (13) is installed on the front side of the first gear (12).

7. A double gear shaft according to claim 6, characterized in that: The front of the spacing block (13) is equipped with a roller gear (14), and the inner wall of the roller gear (14) is provided with multiple oil delivery grooves (15).

8. A double gear shaft according to claim 7, characterized in that: The outer surface of the roller gear (14) is rotatably mounted with a second gear (17), and both ends of the second gear (17) are equipped with limit rings (16), one of which has a disc-shaped gasket (18) mounted on its front side.

Images