CN116255431A - Output drive system for vehicle - Google Patents

Abstract

The invention provides a power transmission system for a vehicle, which provides functions such as easy assembly and power transmission. The output transmission system includes a combination of an output shaft and a spring device; and, the output shaft is equipped with an output gear set, which can rotate freely to output power. The spring device has a structure of a plurality of spring coils, which are wound on the output shaft; the spring device defines a first end and a second end, the first end is connected to the output shaft, and the second end is combined with the output gear set, so that When the power of the rotating shaft is transmitted to the output gear set through the input gear set, the spring device is used to accumulate energy to improve the torque output of the vehicle (or output shaft); to improve the known complex structure, troublesome assembly, time-consuming, large mechanism length/volume and cost higher case.

Description

Output drive system for vehicles

technical field

The invention relates to an output transmission system for a vehicle; in particular, it refers to a vehicle output shaft or output gear set combined spring device to improve the torque output effect technology.

Background technique

It is a known prior art that is applied to vehicles or electric vehicles, such as speed change devices, gear sets to transmit power, differentials, etc., to enable the vehicle to produce forward and reverse functions. For example, Taiwan Patent No. 87217364 (ie, US 6146306 "AUTOMOBILE TRANSMISSION DEVICE"), provides a typical embodiment.

The variable speed transmission system of the known vehicle includes types such as manual, automatic, and continuous variable speed transmission systems; they make the power of the engine shaft or the motor shaft pass through a speed change control mechanism, an input gear set fitted on an input shaft, And the (bevel gear) differential mechanism, output gear set and other devices arranged on an output shaft, so that the power is transmitted to the output shaft, so that the vehicle can obtain different speed ratios.

Basically, the variable speed control mechanism includes a plurality of spring-like bodies and control push cylinders that are respectively fitted in the input gear set and outside; through manual or automatic variable speed control, the motor brakes a worm wheel to rotate, and selectively drives different balls (or push rod) to push the control push cylinder to make the spring body and the input gear set form an engaged or disengaged state, so that the input gear sets with different numbers of teeth drive the output gear set and the differential mechanism respectively, so that the The output shaft generates different rotational speeds to drive the vehicle.

A problem related to vehicle speed change and transmission in structural design, operation and application is that the combination between the output shaft mechanism and the output gear set of the known prior art must use multiple snap rings, bearings (for example, balls, Needle rollers, one-way, thrust bearings, etc.) and other parts to maintain the stability of their freely rotating output power.

For example, in the prior art, the output shaft mechanism usually needs to be configured with a combination of at least 16 one-way bearings, so it has been confined to the inherent transmission mechanism for a long time, so that the traditional output transmission device usually has complex structure, troublesome assembly, Time consuming, larger mechanism length/volume and higher cost; and this situation is not what we want.

Representatively, these reference data show the design skills of known (output) transmissions in terms of construction and application in vehicle systems. If the redesign considers the coordination of the output transmission device, making its mechanism design meet the conditions of simplified structural assembly, and making its structure different from that of the experienced user, it will be able to change its power transmission type, which is different from the prior art. , relatively improve the known complex structure, cumbersome assembly, time-consuming, large mechanism length/volume and high cost; or further achieve the effect of increasing the torque output of the transmission; and these issues are not revealed in the above-mentioned reference data or Specific disclosure.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide a power transmission system for vehicles, which provides functions such as easy assembly and power transmission. The output transmission system includes a combination of an output shaft and a spring device; and, the output shaft is equipped with an output gear set, which can rotate freely to output power. The spring device has a structure of multiple (continuous) coils, which are wound on the output shaft; the spring device defines a first end and a second end, the first end is connected to the output shaft, and the second end is combined with the output gear set. When the power of the rotating shaft is transmitted to the output gear set through the input gear set, the spring device is used to accumulate energy to improve the torque output of the vehicle (or output shaft); improve the known complex structure, troublesome assembly, time-consuming, mechanism length/volume Larger and more costly situations.

According to the output drive system for vehicles of the present invention, the configuration of the coil structure of the spring device is from the first end toward the second end, so that the overlapping area of adjacent coil structures forms a gradually decreasing pattern and, each adjacent coil structure is connected at least in a partial area. Therefore, when the output gear set drives the spring device and the output shaft to rotate, the spring device gradually (tightens) to accumulate energy on the output shaft from the second end toward the first end direction, so that the output shaft increases the torque output effect relatively.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the structure of an embodiment of the present invention; it shows the relationship position and structural cooperation of the input gear set, the speed change control part, the output gear set and the spring device;

Fig. 2 is a partial structural schematic diagram of Fig. 1; depicts the structural combination of the output gear set and the spring device;

Fig. 3 is another partial structural schematic diagram of Fig. 1; it shows the structural combination of output gear set and spring device.

Explanation of reference signs:

10 input gear sets

11 The first input gear

12 Second input gear

13 Third input gear

20 Shift Control Unit

40 bearings

45 one-way bearing

50 spring device

51 first end

52 second end

55 coil structure

59 Fixings

60 output gear set

61 The first output gear

62 Second output gear

63 Third output gear

70 differential mechanism

80 axis of rotation

90 output shaft

95 wings

99 retainer

W Wheels 10

Detailed ways

Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to Figures 1, 2 and 3, the present invention is used in the output transmission system of the vehicle, including a combination of a rotating shaft 80 (or an input shaft) connected to a power source and an output shaft 90; the power source (not shown) can be Select a type of motor, internal combustion engine or engine to make the rotating shaft 80 generate counterclockwise or clockwise rotating power.

The figure shows that the rotating shaft 80 is provided with an input gear set 10 and a speed change control part 20 . The input gear set 10 selects a three-speed (or four-file) transmission system; therefore, the input gear set 10 includes at least first to third input gears 11-13. The input gear set 10 and the speed change control part 20 belong to the known prior art, so they are not described in detail.

Relative to the input gear set 10, an output gear set 60, a spring device 50 (and/or a differential mechanism 70) are installed on the output shaft 90, and jointly constitute an output drive system for outputting power. When the rotational power of the rotating shaft 80 is driven by the input gear set 10 to rotate the output gear set 60, the output gear set 60 will drive the output shaft 90 (and the differential mechanism 70) to rotate, so that the output shaft 90 can generate driving wheels with different speeds. W turns.

Figures 1, 2 and 3 also depict that the output gear set 60 is also a third-speed (or four-file) transmission system, which has a plurality of output gears with different diameters, including the rotatable first to third output gears 61-61. 63, meshing with the first to third input gears 11 to 13 respectively. Between the first and second output gears 61, 62 (and/or the second, third output gears 62, 63), a one-way bearing 45 is arranged; each output gear 61-63 can only allow low-order gear transmission in sequence Higher-order gears, but higher-order gears cannot drive lower-order gears.

In a feasible embodiment, the first output gear 61 of the output gear set 60 cooperates with a bearing 40 (for example, a needle bearing or similar bearing), and a combined output shaft 90 is installed. The output shaft 90 is provided with a wing portion 95 , which is pivotally connected to the third output gear 63 with a fixer 99 . And, a one-way bearing 45 is disposed between the second output gear 62 and the wing 95 , so that the second output gear 62 can drive the third output gear 63 , but the third output gear 63 cannot drive the second output gear 62 .

The figure shows the area between the second output gear 62 and the output shaft 90 , which is equipped with a spring device 50 . The spring device 50 can choose a structure similar to a leaf spring, forming a plurality of (continuous) coil structures 55 wound around the output shaft 90 .

In the adopted embodiment, the spring device 50 is defined with a first end 51 and a second end 52, the first end 51 cooperates with the bearing 40 (or one-way bearing) and the fixing member 59, and connects (or combines) the output shaft 90 ; Fixing member 59 can select keys, pins or the like. And, the second end 52 cooperates with the fixing member 59, and is combined (or fixed) in the form of the output gear set 60 (or the second output gear 62), so that when the power of the rotating shaft 80 is transmitted through the input gear set 10 to the output gear set 60 , cooperate with the spring device 50 to accumulate energy and improve the torque output effect of the vehicle (or output shaft).

Specifically, the arrangement pattern of the coil structure 55 of the spring device 50 is from the first end 51 toward the second end 52, so that the overlapping area of the adjacent coil structures 55 forms a progressively decreasing pattern, and every An adjacent coil structure 55 is connected at least in a partial area, so that the energy accumulated in the coil structure 55 at the second end 52 is gradually increased toward the energy accumulated in the coil structure 55 at the first end 51 . Therefore, when the spring device 50 rotates in response to the rotation of the output gear set 60, the energy (or force) accumulated in the coil structure 55 closer to the first end 51 is greater, and the coil structure 55 closer to the second end 52 accumulates more energy. The energy (or force) is smaller.

That is to say, when the output gear set 60 drives the spring device 50 and the output shaft 90 to rotate, the spring device 50 gradually (tightly) accumulates energy on the output shaft 90 from the second end 52 toward the first end 51, relatively making the output force The shaft 90 (gradually) increases the torque output action.

For example, when the rotating shaft 80 drives the first input gear 11 to drive the first output gear 61 to rotate, it is defined as the first gear (or first speed); The rotation of the first output gear 61. Moreover, the rotation of the second output gear 62 will drive the spring device 50 to rotate, and gradually compress the output shaft 90 from the second end 52 toward the first end 51 to accumulate energy, thereby driving the output shaft 90 to rotate.

Assuming that the rotating shaft 80 drives the second input gear 12 to drive the second output gear 62 to rotate, it is defined as the second gear (or second speed); with the one-way bearing 45, the second output gear 62 directly drives the spring device 50 to rotate, From the second end 52 toward the first end 51 , energy is gradually accumulated on the output shaft 90 to drive the output shaft 90 to rotate.

It can be understood that, assuming that the rotating shaft 80 drives the third input gear 13 to drive the third output gear 63 to rotate, it is defined as the third gear (or the third speed); the third gear (or the third speed) belongs to the high gear, so that The third input gear 13 directly drives the rotation of the third output gear 63 and the output shaft 90 without causing the spring device 50 to store energy.

Typically, the output drive system for vehicles includes the following advantages and considerations compared to the prior art:

The combined structure of the output gear set 60, the spring device 50 and the output shaft 90 of the output drive system has been redesigned for consideration. For example, between output gear set 60 and output shaft 90, spring device 50 is set; The overlapping area of the ring structure 55 forms parts such as decreasing patterns, which are obviously different from the known structural patterns of the prior art, and relatively improve the known complex structures, troublesome assembly, time-consuming, large mechanism length/volume, and high cost. .

In particular, the first end 51 of the spring device 50 is fixed on the output shaft 90, and the second end 52 is fixed to the structure of the output gear set 60, so that its mechanism design can achieve the effect of improving the torque output of the transmission system, which improves the present situation. There is a technology sheet that only has the function of power output.

Therefore, the present invention provides an effective output transmission system for vehicles, whose spatial configuration is different from the known ones, and has incomparable advantages in the prior art, showing considerable progress, which is fully satisfied Meet the requirements of invention patents.

It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arbitrarily during actual implementation, and the component layout type may also be more complicated.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (10)

1. A force transmission system for a vehicle, comprising:

a combination of a force output shaft (90) and a spring device (50);

the output shaft (90) is provided with a output gear set (60) and can freely rotate to output power; and

the spring device (50) is provided with a spring coil structure (55) which is wound on the force output shaft (90); the spring device (50) is defined with a first end (51) and a second end (52), the first end (50) is connected with the output shaft (90), the second end (52) combines the patterns of the output gear set (60), so that when power is transmitted to the output gear set (60), the spring device (50) is matched to store energy, and the torque output effect of the output shaft (90) is improved.

2. The force transmission system for a vehicle of claim 1, wherein: the output gear set (60) is meshed with a force input gear set (10); the force input gear set (10) at least comprises a first force input gear (11), a second force input gear (12) and a third force input gear (13);

the output gear set (60) is provided with a plurality of output gears with different diameters, at least comprises a first output gear (61), a second output gear (62) and a third output gear (63), and is respectively meshed with the first input gear (11), the second input gear (12) and the third input gear (13); and

the input gear set (10) is arranged on a power-driven rotating shaft (80), the rotating shaft (80) is provided with a speed change control part (20), and the output shaft (90) is provided with a differential mechanism (70).

3. The force transmission system for a vehicle of claim 2, wherein: a one-way bearing (45) is arranged between the first output gear (61) and the second output gear (62);

the output shaft (90) is provided with a wing part (95) which is pivoted with a third output gear (63) by matching with a fixer (99); a one-way bearing (45) is arranged between the second force-output gear (62) and the wing part (95).

4. The force transmission system for a vehicle of claim 1, wherein: the spring means (50) selecting a leaf spring configuration to form a plurality of continuous coil configurations (55);

the first end (51) of the spring device (50) is matched with the bearing (40) and the fixing piece (59) and is connected with the output shaft (90); the fixing member (59) selects one of the keys and pins;

the second end (52) cooperates with a fixture (59) to combine the patterns of a second output gear (62) of the output gear set (60).

5. A force transmission system for a vehicle as claimed in claim 2 or 3, wherein: the spring means (50) selecting a leaf spring configuration to form a plurality of continuous coil configurations (55);

the first end (51) of the spring device (50) is matched with the bearing (40) and the fixing piece (59) and is connected with the output shaft (90); the fixing member (59) selects one of the keys and pins;

the second end (52) cooperates with a fixture (59) to combine the patterns of a second output gear (62) of the output gear set (60).

6. The force transmission system for a vehicle of claim 4, wherein: the coil structures (55) of the spring device (50) are arranged in a decreasing pattern from the first end (51) towards the second end (52) such that overlapping areas of adjacent coil structures (55) are connected in at least a partial area, such that energy accumulated in the coil structures (55) of the second end (52) is increased in an increasing pattern towards the coil structures (55) of the first end (51).

7. The force transmission system for a vehicle of claim 5, wherein: the coil structures (55) of the spring device (50) are arranged in a decreasing pattern from the first end (51) towards the second end (52) such that overlapping areas of adjacent coil structures (55) are connected in at least a partial area, such that energy accumulated in the coil structures (55) of the second end (52) is increased in an increasing pattern towards the coil structures (55) of the first end (51).

8. The force transmission system for a vehicle as defined in claim 1 or 4 or 6, wherein: the output gear set (60) rotates to drive the spring device (50) to rotate, so that the spring device (50) gradually tightens on the output shaft (90) from the second end (52) towards the first end (51) to store energy, and drives the output shaft (90) to rotate.

9. A force transmission system for a vehicle as claimed in claim 2 or 3, wherein: the second output gear (62) rotates to directly drive the spring device (50) to rotate, and energy is gradually accumulated on the output shaft (90) from the second end (52) towards the first end (51) to drive the output shaft (90) to rotate.

10. The force transmission system for a vehicle of claim 7, wherein: the second output gear (62) rotates to directly drive the spring device (50) to rotate, and energy is gradually accumulated on the output shaft (90) from the second end (52) towards the first end (51) to drive the output shaft (90) to rotate.

Images