Automobile gearbox synchronizer hub

Abstract

The utility model relates to the technical field of automobile hubs, in particular to an automobile gearbox synchronizer hub. Which comprises a hub body and is characterized in that a base is arranged at the bottom of the hub body, a plurality of vertically-arranged inner ring racks are arranged on the inner wall of the hub body, outer ring racks are arranged on the edge of the outer wall of the hub body, a mounting groove is formed in the outer wall of the hub body, and a cooling assembly is arranged in the mounting groove; through the design of the inner-ring rack and the outer-ring rack, the gear contact area is increased, the transmission stability and efficiency are improved, and the energy loss is reduced; the wear-resistant coating and the high-strength alloy steel material on the bottom surface of the base remarkably improve the wear resistance and the service life of the synchronizer hub; the integrated cooling assembly takes away heat in time through circulating flow of cooling liquid, overheating is prevented, and stable operation of the gearbox is guaranteed; the design of a reinforcing ring fixing rod and a damping sleeve effectively reduces vibration and noise, and the design of a cooling assembly and a liquid injection ring groove makes filling of cooling liquid more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile hubs, in particular to an automobile gearbox synchronizer hub. Background Art

[0002] In modern automotive manufacturing, the transmission synchronizer hub is a critical mechanical component that synchronizes the gears in the transmission. Traditional transmission synchronizer hubs often suffer from several issues: low transmission efficiency, poor heat dissipation, insufficient structural strength, and poor durability. These issues can degrade transmission performance and even impact the overall vehicle's driving experience and safety.

[0003] In order to solve these problems, the present invention proposes a novel automobile transmission synchronizer hub design, which improves transmission efficiency, enhances durability and improves heat dissipation performance by optimizing structure and material selection.

[0004] A Chinese patent discloses a synchronizer for an automotive transmission (publication number: CN 202125538U). The synchronizer comprises a gear hub disposed on a transmission shaft, a gear sleeve guided on the gear hub, and a synchronizer ring. The gear sleeve has spline teeth and a shift-limiting protrusion. The hub and synchronizer ring are provided with a channel suitable for the shift-limiting protrusion to translate through. However, the synchronizer in this automotive transmission suffers from low transmission efficiency, poor heat dissipation, insufficient structural strength, and poor durability. These issues can lead to reduced transmission performance and even affect the driving experience and safety of the entire vehicle. Therefore, a synchronizer hub for an automotive transmission is needed. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of the existing technology of automobile transmission synchronizers, such as low transmission efficiency, poor heat dissipation, insufficient structural strength and poor durability. These problems can lead to reduced transmission performance and even affect the driving experience and safety of the entire vehicle. The utility model proposes an automobile transmission synchronizer hub.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows: the present utility model discloses a synchronizer wheel hub for an automotive transmission, comprising a wheel hub body, characterized in that: a base is provided at the bottom of the wheel hub body, a plurality of vertically arranged inner ring racks are provided on the inner wall of the wheel hub body, an outer ring rack is provided on the edge of the outer wall of the wheel hub body, a mounting groove is provided on the outer wall of the wheel hub body, and a cooling assembly is provided in the mounting groove. The design of the inner and outer ring racks enables more efficient power transmission and reduces energy loss. The design of the base and wear-resistant coating increases the strength and wear resistance of the overall structure. The integrated cooling assembly dissipates heat in a timely manner, extending service life and ensuring stable performance.

[0007] Preferably, the cooling assembly includes a coolant pipe with a retaining ring centrally located within the pipe, which is associated with the mounting slot. The retaining ring prevents movement of the coolant pipe during operation, improving the stability and efficiency of the cooling system. The design of the coolant pipe and retaining ring facilitates installation and replacement, facilitating maintenance.

[0008] Preferably, the hub body has an injection ring groove at the top edge, which is connected to the coolant pipe. A injection ring cover is located on the top of the injection ring groove, and a injection hole is located on one side of the top of the injection ring cover. The design of the injection ring groove and injection hole makes adding coolant more convenient and quick; the design of the injection ring cover and injection hole ensures good sealing to prevent coolant leakage.

[0009] Preferably, the outer rack is equipped with a reinforcement ring fixing rod, which is equipped with a shock-absorbing sleeve. The number of shock-absorbing sleeves is 10 to 12 and they are arranged in an array with equal spacing. The reinforcement ring fixing rod increases the strength of the outer rack, making it more able to withstand high loads. The number and layout of the shock-absorbing sleeves effectively reduce vibration and noise, improving driving comfort.

[0010] Preferably, the bottom surface of the base is provided with a wear-resistant coating, which significantly improves the wear resistance of the base, reduces wear, and extends the service life of the entire synchronizer hub.

[0011] Preferably, the hub body is made of high-strength alloy steel. High-strength alloy steel not only provides excellent strength but also maintains a relatively light weight, which helps improve the overall performance of the vehicle. High-strength alloy steel also has good corrosion resistance and can be used for a long time in harsh environments.

[0012] The utility model is beneficial in that:

[0013] This application increases the gear contact area through the design of inner and outer ring racks, improves transmission stability and efficiency, and reduces energy loss; the wear-resistant coating on the bottom of the base and the high-strength alloy steel material significantly improve the wear resistance and service life of the synchronizer hub; the integrated cooling assembly removes heat in time through the circulation of coolant, prevents overheating, and ensures stable operation of the gearbox; the design of the reinforcing ring fixing rod and shock-absorbing sleeve effectively reduces vibration and noise, and improves driving comfort; the design of the cooling assembly and the liquid filling ring groove makes the filling of coolant more convenient and quick, and facilitates daily maintenance; the high-strength alloy steel material has good corrosion resistance and can be used for a long time in various harsh environments, thereby improving the reliability of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic structural diagram of the utility model.

[0016] Figure 2 For this utility model Figure 1 Enlarged view of I in the middle.

[0017] Figure 3 This is a structural schematic diagram of the utility model from another perspective.

[0018] Figure 4 For this utility model Figure 3 Enlarged view of II.

[0019] Figure 5 This is a schematic diagram of the bottom structure of the utility model.

[0020] In the figure: 1. Inner ring rack; 2. Hub body; 3. Outer ring rack; 4. Reinforcement ring fixing rod; 5. Shock-absorbing sleeve; 6. Coolant pipe; 7. Mounting groove; 8. Fixing ring; 9. Injection ring groove; 10. Injection ring cover; 11. Injection hole; 12. Wear-resistant coating; 13. Base. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example

[0023] See also Figure 1-5As shown, a synchronizer hub for an automotive transmission includes a hub body 2, characterized by a base 13 at the bottom of the hub body 2, a plurality of vertically arranged inner ring racks 1 arranged on the inner wall of the hub body 2, an outer ring rack 3 arranged on the outer edge of the hub body 2, and a mounting groove 7 provided on the outer wall of the hub body 2, within which a cooling assembly is housed. The design of the inner and outer ring racks 3 enables more efficient power transmission and reduces energy loss. The design of the base 13 and the wear-resistant coating 12 increases the strength and wear resistance of the overall structure. The integrated cooling assembly dissipates heat promptly, extending service life and ensuring stable performance.

[0024] In this embodiment, the cooling assembly includes a coolant pipe 6, with a retaining ring 8 disposed at its center. The retaining ring 8 is associated with a mounting groove 7. The retaining ring 8 prevents the coolant pipe 6 from moving during operation, thereby improving the stability and efficiency of the cooling system. The design of the coolant pipe 6 and retaining ring 8 facilitates installation and replacement, facilitating maintenance.

[0025] In this embodiment, the hub body 2 has a top edge with a liquid injection groove 9, which is associated with the coolant pipe 6. A liquid injection ring cover 10 is located on top of the liquid injection groove 9, and a liquid injection hole 11 is located on one side of the top of the liquid injection ring cover 10. The design of the liquid injection groove 9 and the liquid injection hole 11 makes adding coolant more convenient and quick; the design of the liquid injection ring cover 10 and the liquid injection hole 11 ensures good sealing, preventing coolant leakage.

[0026] In this embodiment, the outer rack 3 is provided with a reinforcement ring fixing rod 4, which is equipped with a shock-absorbing sleeve 5. Ten to twelve shock-absorbing sleeves 5 are arranged in an array with equal spacing. The reinforcement ring fixing rod 4 increases the strength of the outer rack 3, making it more resistant to high loads. The number and layout of the shock-absorbing sleeves 5 effectively reduce vibration and noise, improving driving comfort.

[0027] In this embodiment, the bottom surface of the base 13 is provided with a wear-resistant coating 12. The wear-resistant coating 12 significantly improves the wear resistance of the base 13, reduces wear, and extends the service life of the entire synchronizer hub.

[0028] In this embodiment, the hub body 2 is made of high-strength alloy steel. High-strength alloy steel not only provides excellent strength but also maintains a relatively light weight, which helps improve the overall performance of the vehicle. High-strength alloy steel also has good corrosion resistance and can be used for a long time in harsh environments.

[0029] The operating principle of this embodiment is as follows: When the transmission begins operating, the inner and outer racks 1 and 3 respectively mesh with the gears within the transmission. The inner rack 1 is arranged vertically on the inner wall of the hub body 2, while the outer rack 3 is located on the outer edge. This design increases the contact area between the gears, improving transmission stability and efficiency. As the transmission operates, the hub body 2 generates heat. This is when the cooling assembly comes into play. The coolant pipe 6 is installed in the mounting groove 7 of the hub body 2 and secured by a retaining ring 8. Coolant is injected from the injection ring groove 9 and refilled through the injection hole 11. The coolant pipe 6 removes the heat generated by the hub body 2, allowing timely replenishment of coolant if insufficient, effectively reducing the temperature and preventing overheating. To cope with high loads and vibration, the outer rack 3 is equipped with a reinforcing ring fixing rod 4 and is equipped with 10 to 12 equally spaced damping sleeves 5. The base 13 at the bottom of the hub body 2 supports the entire structure and is coated with a wear-resistant coating 12. This increases the wear resistance and service life of the base 13 and ensures that it remains stable during long-term use.

[0030] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A synchronizer hub for an automobile transmission, comprising a hub body (2), characterized in that: The bottom of the hub body (2) is provided with a base (13), the inner wall of the hub body (2) is provided with a plurality of vertically arranged inner ring racks (1), the outer wall edge of the hub body (2) is provided with an outer ring rack (3), the outer wall of the hub body (2) is provided with a mounting groove (7), and a cooling component is provided in the mounting groove (7).

2. The synchronizer hub for an automobile transmission according to claim 1, characterized in that: The cooling assembly comprises a cooling liquid pipe (6), a fixing ring (8) is provided at the center of the cooling liquid pipe (6), and the fixing ring (8) is associated with the mounting groove (7).

3. The synchronizer hub for an automobile transmission according to claim 2, characterized in that: A liquid injection ring groove (9) is provided on the top edge of the hub body (2), the liquid injection ring groove (9) is associated with the coolant pipe (6), a liquid injection ring cover (10) is provided on the top of the liquid injection ring groove (9), and a liquid injection hole (11) is provided on one side of the top of the liquid injection ring cover (10).

4. The automobile transmission synchronizer hub according to claim 1, characterized in that: The outer ring rack (3) is provided with a reinforcement ring fixing rod (4), and the reinforcement ring fixing rod (4) is provided with a shock-absorbing sleeve (5). The number of the shock-absorbing sleeves (5) is 10 to 12 and they are arranged in an array with equal spacing.

5. The synchronizer hub for an automobile transmission according to claim 1, characterized in that: The bottom surface of the base (13) is provided with a wear-resistant coating (12).

6. The synchronizer hub for an automobile transmission according to claim 1, characterized in that: The hub body (2) is made of high-strength alloy steel.

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