Hybrid transmission assembly

Abstract

The invention discloses a hybrid power speed change assembly, and relates to the field of automobile transmission equipment, according to the technical scheme, the hybrid power speed change assembly comprises an outer shell, a first input half shaft, a second input half shaft, a worm gear, a first worm and a second worm, when the first input half shaft and the second input half shaft are connected with different power sources respectively, one power source inputs power, and the other power source inputs power; and the other is disconnected. Due to the fact that the locking function is achieved inside, the first power source can directly transmit power to the outer shell, the outer shell serves as a power output end to output power, when the other end inputs power, the two different power sources can output power in the mode that a plus b is divided by two, and when one power source inputs power, the rotating speed is high or low, and working parameters of the other end cannot be affected; in other words, when the device is applied to the hybrid electric vehicle and the engine and the driving motor are used as power input, working parameters of the engine cannot be affected by too high or low rotating speed of the driving motor, the power of the engine cannot be squeezed, and the effects of saving and emission reduction are really achieved.

Description

Technical Field

[0001] The present invention relates to the field of automobile transmission equipment, and in particular to a hybrid transmission assembly. Background Art

[0002] Hybrid transmissions can be applied to various types of vehicles to reduce emissions and protect the environment. Hybrid vehicles have an important share in the market, and hybrid transmissions are generally divided into planetary gear power splits or single-speed and multi-speed structures. The planetary gear hybrid transmission system has the disadvantages of complex manufacturing process, difficulty in electronic control adjustment, and inability to drive directly at high speeds. Single-speed hybrid transmissions are prone to stalling, cannot be paralleled for a long time at low and medium speeds, and when output in parallel, the engine and motor drag each other. The electronic control system is difficult to adjust, and the multi-speed hybrid transmission has a complex structure, high cost, and there will be a setback when shifting. In the above transmissions, when driven in parallel, the engine power and motor power cannot be fully input to the wheel end. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a hybrid transmission assembly. In this solution, when the power input speed of one power source is high or low, it will not affect the working parameters of the other end. When applied to a hybrid vehicle, when the engine and the drive motor are used as power input, the drive motor speed is too high or too low, it will not affect the working parameters of the engine, and will not squeeze the engine power, which truly achieves the effect of saving and reducing emissions.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a hybrid transmission assembly, including an outer shell, a worm gear, a first input half shaft, a first worm, a second input half shaft and a second worm;

[0005] The outer shell is provided with external gear teeth on the X-axis, the inner ends of the first input half shaft and the second input half shaft are respectively rotated and inserted from the outer ends of the two ends of the outer shell to the inner part, the external gear teeth, the first input half shaft and the second input half shaft are arranged coaxially, the inner end of the first input half shaft is provided with a first sun gear, and the inner end of the second input half shaft is provided with a second sun gear;

[0006] The worm wheel is rotatably matched with the interior of the outer shell, the axis of the worm wheel is arranged along the Y direction, and a first worm and a second worm are respectively arranged on both sides of the worm wheel, and the worm wheel is respectively meshed with the first worm and the second worm, and the first worm and the second worm are respectively rotatably matched with respect to the outer shell, and a first planetary gear meshed with the first sun gear is arranged at the end of the first worm, and a second planetary gear meshed with the second sun gear is arranged at the end of the second worm.

[0007] When the first input axle has power input, and the second input axle is connected to the power source but has no power input, the second input axle will be clamped by the machine itself. At this time, when the first input axle rotates clockwise, the first input axle will drive the housing to rotate clockwise, and the housing drives the worm connected to the second input axle end inside to rotate around the second sun gear clockwise. The second worm and the second planetary gear rotate clockwise, and the first planetary gear is driven by the first sun gear. The first planetary gear rotates counterclockwise and revolves around the sun gear clockwise. The first planetary gear rotates counterclockwise, and the second planetary gear rotates clockwise. In this way, the middle worm gear is driven, and the power speed of the first input semi-shaft end is input to the outer shell at 1 / 2 of the speed. When the second input semi-shaft has power input and the direction is consistent with the direction of the first input semi-shaft, the power obtained at the output end of the shell is the sum of the speeds of the first input semi-shaft plus the second input semi-shaft divided by two. Similarly, when the second input semi-shaft has power input, the first input semi-shaft end is restrained. The second phenomenon is the same as the above principle. The first input semi-shaft end has input power, the second input semi-shaft end has no power input, and is disconnected from the second input semi-shaft end, which means that the second input semi-shaft end is unloaded. At this time, the sun gear on the first input semi-shaft end drives the first planetary gear, and the worm connected to the first planetary gear drives the worm wheel. However, the worm wheel cannot drive the second worm, because the worm and the worm wheel have self-locking conditions. At this time, the internal part does not work at all, forming a whole, and the first input semi-shaft will drive the outer shell to directly output power.

[0008] Preferably, the first worm, the second worm and the worm wheel have a self-locking condition.

[0009] Preferably, the outer shell is a cylindrical structure with an X-axis.

[0010] Preferably, the outer gear is coaxially arranged on the outer wall of the cylindrical structure to facilitate the rotation of the outer shell.

[0011] Preferably, the first worm and the second worm are arranged parallel to each other, so that the distribution is more balanced.

[0012] Preferably, the first worm and the second worm have exactly the same parameters, so as to facilitate better rotation and transmission power.

[0013] Preferably, the worm wheel is rotationally matched with the outer shell through the inner shaft, so that the worm wheel can be more stably matched inside the outer shell.

[0014] Preferably, the first input semi-shaft and the second input semi-shaft, the first worm and the second worm are symmetrically distributed around the periphery of the worm wheel (2) to facilitate rotation.

[0015] Advantages of the present invention:

[0016] When the first input half shaft and the second input half shaft are connected to different power sources, one power source inputs power and the other is disconnected. Because of the internal self-locking function, the first power source will be directly transmitted to the outer shell, and the outer shell will output power as the power output end. When the other end inputs power, the two different power sources will output power in the form of a plus b divided by two. When the input power speed of one power source is high or low, it will not affect the working parameters of the other end. That is to say, when applied to hybrid vehicles, when the engine and the drive motor are used as power input, the high or low speed of the drive motor will not affect the working parameters of the engine, and will not squeeze the engine power, which truly achieves the effect of saving and reducing emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only two of the drawings of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic diagram of an embodiment of the present invention;

[0019] Figure 2 A three-dimensional diagram of an embodiment of the present invention;

[0020] Among them, 1. outer shell; 2. worm gear; 3. first input half shaft; 4. first sun gear; 5. first planetary gear; 6. first worm; 7. second input half shaft; 8. second sun gear; 9. second planetary gear; 10. second worm; 11. outer gear teeth. DETAILED DESCRIPTION

[0021] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0022] Example

[0023] A hybrid transmission assembly, such as Figure 1 As shown, it includes an outer shell 1, a worm wheel 2, a first input half shaft 3, a first worm 6, a second input half shaft 7 and a second worm 10;

[0024] The outer portion of the outer shell 1 is provided with an outer gear 11 with an X-axis, and the inner ends of the first input half shaft 3 and the second input half shaft 7 are respectively rotated and inserted from the outer ends of the outer shell 1 to the inner portion, and the outer gear 11, the first input half shaft 3 and the second input half shaft 7 are arranged coaxially, and the inner end of the first input half shaft 3 is provided with a first sun gear 4, and the inner end of the second input half shaft 7 is provided with a second sun gear 8;

[0025] The worm wheel 2 is rotatably matched with the interior of the outer shell 1, and the axis of the worm wheel 2 is set along the Y direction. The first worm 6 and the second worm 10 are respectively provided on both sides of the worm wheel 2. The worm wheel 2 is respectively meshed with the first worm 6 and the second worm 10. The first worm 6 and the second worm 10 are respectively rotatably matched with the outer shell 1. The end of the first worm 6 is provided with a first planetary gear 5 meshed with the first sun gear 4, and the end of the second worm 10 is provided with a second planetary gear 9 meshed with the second sun gear 8.

[0026] When the first input axle 3 has power input, and the second input axle 7 is connected to the power source but has no power input, the second input axle 7 will be clamped by the machine itself. At this time, when the first input axle 3 rotates clockwise, the first input axle 3 will drive the housing to rotate clockwise, and the housing drives the worm connected to the end of the second input axle 7 to rotate clockwise around the second sun gear 8. The second worm 10 and the second planetary gear 9 rotate clockwise, and the first planetary gear 5 is driven by the first sun gear 4. The first planetary gear 5 rotates counterclockwise and revolves around the sun gear clockwise. The first planetary gear 5 rotates counterclockwise, and the second planetary gear 9 rotates clockwise. In this way, the middle worm wheel 2 is driven, and the power speed of the first input semi-shaft 3 end is input to the outer shell 1 at 1 / 2 of the speed. When the second input semi-shaft 7 has power input, and the direction is consistent with the direction of the first input semi-shaft 3, the power obtained at the output end of the shell is the sum of the speeds of the first input semi-shaft 3 and the second input semi-shaft 7 divided by two. Similarly, the second input semi-shaft 7 has power input, and the first input semi-shaft 3 end is restrained. The second phenomenon is the same as the above principle. The first input semi-shaft 3 end has input power, and the second input semi-shaft 7 end has no power input, and is disconnected from the second input semi-shaft 7 end, which means (clutch) that the second input semi-shaft 7 end is unloaded. At this time, the sun gear on the first input semi-shaft 3 end drives the first planetary gear 5, and the worm connected to the first planetary gear 5 drives the worm wheel 2. However, the worm wheel 2 cannot drive the second worm 10, because the worm and the worm wheel 2 have self-locking conditions. At this time, the internal does not work at all, forming a whole, and the first input semi-shaft 3 will drive the outer shell 1 to directly output power.

[0027] The first worm 6, the second worm 10 and the worm wheel 2 have a self-locking condition.

[0028] The outer shell 1 is a cylindrical structure with an X-axis. The outer gear teeth 11 are coaxially arranged on the outer wall of the cylindrical structure.

[0029] The first worm 6 and the second worm 10 are arranged parallel to each other. The distribution is more balanced. The parameters of the first worm 6 and the second worm 10 are exactly the same.

[0030] The worm wheel 2 is rotatably matched with the outer shell 1 through the inner shaft, so that the worm wheel can be more stably matched inside the outer shell. The first input semi-shaft 3 and the second input semi-shaft 7, the first worm 6 and the second worm 10 are symmetrically distributed around the outer center of the worm wheel 2, respectively. The distribution is more balanced, which is convenient for rotation.

[0031] Advantages of the present invention:

[0032] When the first input half shaft 3 and the second input half shaft 7 are connected to different power sources, one power source inputs power and the other is disconnected. Because there is a self-locking function inside, the first power source will be directly transmitted to the outer shell 1, and the outer shell 1 outputs power as the power output end. When the other end inputs power, the two different power sources will output power in the form of a plus b divided by two. When the input power speed of one power source is high or low, it will not affect the working parameters of the other end. That is to say, when applied to hybrid vehicles, when the engine and the drive motor are used as power input, the high or low speed of the drive motor will not affect the working parameters of the engine, and will not squeeze the engine power, which truly achieves the effect of saving and reducing emissions.

[0033] This solution has a simple structure, low cost, simple electronic control logic, and is connected to the engine and motor reducer to form a complete transmission. When the engine is working within a certain range, the input speed and torque of the drive motor at the other end are either high or low, which will only adjust the vehicle speed and will not affect the engine operating parameters. Moreover, the power of the engine and the drive motor will be input to the wheel end completely without loss, and the drive motor speed can also be adjusted to achieve stepless speed change for the vehicle, so that low-speed electricity consumption, medium-speed parallel connection, and high-speed engine direct drive are achieved. This component can also be used in a dual-clutch transmission. One end is connected to the odd-numbered gear output shaft, and the other end is connected to the even-numbered gear output shaft. The outer gear 11 of this component is connected to the differential, which can realize a dual-clutch transmission. The dual-clutch transmission will add multiple gears to the original gears. As disclosed in patent number CN202210428798, the vehicle becomes smoother during driving, and the service life of the two clutches will be more than doubled.

[0034] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A hybrid transmission assembly, characterized in that: It comprises an outer casing (1), a first input half shaft (3), a second input half shaft (7), a worm wheel (2), a first worm (6) and a second worm (10); The outer portion of the outer shell (1) is provided with an external gear (11) with an X-axis, and the inner ends of the first input half shaft (3) and the second input half shaft (7) are respectively rotated from the outside of both ends of the outer shell (1) to the inside, and the external gear (11), the first input half shaft (3) and the second input half shaft (7) are arranged coaxially, and the inner end of the first input half shaft (3) is provided with a first sun gear (4), and the inner end of the second input half shaft (7) is provided with a second sun gear (8); The worm wheel (2) is rotatably engaged with the interior of the outer shell (1), the axis of the worm wheel (2) is arranged along the Y direction, and a first worm (6) and a second worm (10) are respectively arranged on both sides of the worm wheel (2), and the worm wheel (2) is respectively meshed with the first worm (6) and the second worm (10), and the first worm (6) and the second worm (10) are respectively rotatably engaged with the outer shell (1), and the end of the first worm (6) is provided with a first planetary gear (5) meshed with the first sun gear (4), and the end of the second worm (10) is provided with a second planetary gear (9) meshed with the second sun gear (8).

2. A hybrid transmission assembly according to claim 1, characterized in that: The first worm (6), the second worm (10) and the worm wheel (2) have a self-locking condition.

3. A hybrid transmission assembly according to claim 1, characterized in that: The outer shell (1) is a cylindrical structure with an X-axis.

4. A hybrid transmission assembly according to claim 3, characterized in that: The outer gear teeth (11) are coaxially arranged on the outer wall of the cylindrical structure.

5. The hybrid transmission assembly according to claim 1, characterized in that: The first worm (6) and the second worm (10) are arranged parallel to each other.

6. A hybrid transmission assembly according to claim 1, characterized in that: The parameters of the first worm (6) and the second worm (10) are completely the same.

7. A hybrid transmission assembly according to claim 1, characterized in that: The worm wheel (2) is rotationally matched with the outer shell (1) via an inner shaft.

8. The hybrid transmission assembly according to claim 1, characterized in that: The first input half shaft (3) and the second input half shaft (7), the first worm (6) and the second worm (10) are symmetrically distributed around the periphery of the worm wheel (2).

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