CN216923072U - Output drive system for vehicle - Google Patents

Abstract

The utility model provides an output transmission system for a vehicle, which provides the functions of simple 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 output power freely. The spring device is formed with a structure of a plurality of spring coils, which are wound on the output shaft; the spring device is defined with 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 the When the power of the rotating shaft is transmitted to the output gear set through the input gear set, the energy is accumulated with the spring device to improve the torque output effect of the vehicle (or output shaft); it improves the known complex structure, troublesome assembly, time-consuming, large mechanism length/volume and cost. higher situation.

Description

power transmission system for vehicles

technical field

The utility model relates to an output power transmission system for a vehicle; in particular, it refers to a combined spring device of a vehicle output shaft or an output gear set to improve the technology of torsion output.

Background technique

It is a known prior art that is applied to vehicles or electric vehicles, such as transmissions, gear sets to transmit power, differentials, etc., to make the vehicle move forward and backward. For example, Taiwan No. 87217364 "Automobile Transmission Device" (ie, US 6146306 "AUTOMOBILE TRANSMISSION DEVICE"), a patent case, provides a typical embodiment.

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

Basically, the speed change control mechanism includes a plurality of spring-like bodies and control push cylinders which are respectively fitted inside and outside the input gear set; through manual or automatic speed control, the motor brakes a worm wheel to rotate, and selectively drives different balls (or push rod) push the control push cylinder to make the type of spring body and the input gear set form a state of engagement or disengagement, 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 subject related to the structural design and operation and application of vehicle speed change and transmission is that it is known that the combination between the output shaft mechanism and the output gear set of the prior art must use a plurality of retaining rings, bearings (for example, balls, Needle rollers, one-way, thrust bearings, etc.) to maintain the stability of their freely rotating output power.

For example, in the prior art, the output shaft mechanism usually needs to be equipped with a combination of at least 16 one-way bearings, so it forms a type of long-term limited by the inherent transmission mechanism, so that the traditional output transmission device usually has complicated structure, troublesome assembly, Time consuming, length/volume of the mechanism, and high cost; which is not what we expected.

Typically, these reference data show design skills in terms of construction and application of known (output) transmissions in the context of vehicle systems. If the redesign considers the cooperation of the output transmission device, so that its mechanism design meets the conditions of simplified structural assembly, and its structure is different from that of the conventional ones, its power transmission pattern can be changed, which is different from the prior art. , relatively improving the known complex structure, troublesome assembly, time-consuming, large mechanism length/volume and high cost, etc.; or further achieve the effect of improving the torque output of the transmission device; and these issues are not suggested in the above reference data or specific disclosure.

Utility model content

In view of the above-mentioned shortcomings of the prior art, the main purpose of the present invention is to provide an output power transmission system for a vehicle, which provides the functions of simple 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 output power freely. The spring device is formed with a structure of a plurality of (continuous) spring coils, which are wound on the output shaft; the spring device is defined with 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. state, so that when the power of the rotating shaft transmits the output gear set through the input gear set, it cooperates with the spring device to store energy to improve the torque output effect of the vehicle (or output shaft); improve the known complex structure, troublesome assembly, time-consuming, mechanism length/volume Larger and more expensive situations.

According to the output power transmission system for a vehicle of the present invention, the configuration of the coil structure of the spring device is a decreasing type from the first end to the second end direction, so that the overlapping area of the adjacent coil structures is gradually reduced. state; and, each adjacent coil structure is connected at least in a local area. Therefore, when the output gear set drives the spring device and the output shaft to rotate, the spring device is gradually (tightened) accumulating energy on the output shaft from the second end toward the first end, thereby increasing the torque output effect on the output shaft.

Description of drawings

Fig. 1 is the structural cross-sectional schematic diagram of the embodiment of the present utility model; shows the relational 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; depicting 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 the output gear set and the spring device.

Description of reference numbers:

10 input gear set

11 The first input gear

12 Second input gear

13 Third input gear

20 Shift control section

40 Bearings

45 One-way bearing

50 Spring device

51 first end

52 second end

55 Coil structure

59 Fixtures

60 output gear set

61 First output gear

62 Second output gear

63 Third output gear

70 Differential

80 Rotary axis

90 output shaft

95 Wings

99 Retainer

W Wheel 10

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Please refer to Figures 1, 2 and 3, the utility model is used for 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 in the figure) A type of motor, internal combustion engine or engine can be selected to make the rotating shaft 80 generate counterclockwise or clockwise rotational power.

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

Relative to the input gear set 10 , an output gear set 60 and a spring device 50 (and/or a differential mechanism 70 ) are mounted on the output shaft 90 to form an output transmission system for outputting power. When the rotational power of the rotating shaft 80 drives the output gear set 60 to rotate through the input gear set 10 , the output gear set 60 will drive the output shaft 90 (and the differential mechanism 70 ) to rotate, so that the output shaft 90 generates driving wheels with different rotational speeds W turns.

Figures 1, 2 and 3 also depict that the output gear set 60 also selects a three-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~ 63, respectively meshing with the first to third input gears 11 to 13. A one-way bearing 45 is arranged between the first and second output gears 61, 62 (and/or the second and third output gears 62, 63); so that each output gear 61-63 can only allow low-level 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 the bearing 40 (eg, a needle bearing or the like) to install the combined output shaft 90 . The output shaft 90 is provided with a wing portion 95 , and the third output gear 63 is pivotally connected with the holder 99 . And, a one-way bearing 45 is arranged 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, where a spring device 50 is fitted. The spring device 50 can choose a structure similar to a leaf spring, and is formed with a plurality of (continuous) coil structures 55 wound around the output shaft 90.

In the adopted embodiment, the spring device 50 defines 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 to connect (or combine) the output shaft 90 ; The fixing member 59 can be selected as a key, a pin or the like. And, the second end 52 cooperates with the fixing member 59 to combine (or fix) the output gear set 60 (or the second output gear 62 ), so that the power of the rotating shaft 80 is transmitted through the input gear set 10 when the output gear set 60 is transmitted , and cooperate with the spring device 50 to store energy to improve the torque output effect of the vehicle (or output shaft).

Specifically, the configuration pattern of the coil structures 55 of the spring device 50 is that from the first end 51 to the second end 52, the overlapping area of the adjacent coil structures 55 forms a decreasing pattern, and each time An adjacent coil structure 55 is at least partially connected, so that the energy stored in the coil structure 55 at the second end 52 increases toward the energy stored 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 closer the coil structure 55 to the first end 51 is to accumulate energy (or force), the closer the coil structure 55 to the second end 52 accumulates The smaller the energy (or force) is.

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 (tightensly) accumulates energy on the output shaft 90 from the second end 52 to the first end 51 , so that the output force is relatively The shaft 90 (gradually) increases the torque output effect.

For example, it is assumed that 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 . In addition, the rotation of the second output gear 62 will drive the spring device 50 to rotate, gradually pressing from the second end 52 to the first end 51 to accumulate energy on the output shaft 90 and drive 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 to the direction of the first end 51 , the output shaft 90 is gradually forced to accumulate energy, thereby driving the output shaft 90 to rotate.

It can be understood that when 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 The third input gear 13 directly drives the third output gear 63 and the output shaft 90 to rotate without causing the spring device 50 to accumulate energy.

Typically, this powertrain for a vehicle includes the following advantages and considerations over the prior art:

The combined structure of the output gear set 60 , the spring device 50 and the output shaft 90 of the output transmission system has been redesigned for consideration. For example, between the output gear set 60 and the output shaft 90, a spring device 50 is arranged; the spring device 50 has a plurality of coil structures 50, and the spring device 50 moves from the first end 51 to the second end 52, so that the adjacent springs The overlapping area of the ring structure 55 forms parts such as a decreasing pattern, which is obviously different from the known structure pattern in the prior art, and relatively improves the known situation of complex structure, troublesome assembly, time-consuming, large mechanism length/volume and high cost, etc. .

In particular, the first end 51 of the spring device 50 is fixed to 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, improving the current situation. There are technical sheets that only have the function of power output.

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

It should be noted that the drawings provided in this embodiment are only to illustrate the basic concept of the present invention in a schematic way, and only the components related to the present invention are shown in the drawings instead of the number of components in the actual implementation, In the drawing of shape and size, the type, quantity and proportion of each component can be arbitrarily changed in actual implementation, and the component layout may also be more complicated.

The above-mentioned embodiments merely 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 embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims (10)

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

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

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

the spring device (50) is provided with a spring coil structure (55) which is wound on the output shaft (90); the spring device (50) is defined with a first end (51) and a second end (52), the first end (51) is connected with the output shaft (90), and the second end (52) is combined with the output gear set (60), so that when power is transmitted to the output gear set (60), the energy is accumulated by matching with the spring device (50), and the torsion output effect of the output shaft (90) is improved.

2. A power take-off drive train for a vehicle as claimed in claim 1, wherein: the output gear set (60) engages an input gear set (10); the input gear set (10) at least comprises a first input gear (11), a second input gear (12) and a third input gear (13);

the output gear set (60) is provided with a plurality of output gears with different diameters, and at least comprises a first output gear (61), a second output gear (62) and a third output gear (63) which are 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 rotating shaft (80) driven by a power source, 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. A power take-off drive train for a vehicle as claimed in 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 the third output gear (63) by matching with the fixer (99); a one-way bearing (45) is arranged between the second output gear (62) and the wing part (95).

4. A power take-off drive train for a vehicle as claimed in claim 1, wherein: the spring device (50) selects a structure of a plate spring to form a plurality of continuous coil structures (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); a fixing member (59) selects one of the key and the pin;

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

5. A power take-off transmission for a vehicle as claimed in claim 2 or claim 3, wherein: the spring device (50) selects a structure of a plate spring to form a plurality of continuous coil structures (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); a fixing member (59) selects one of the key and the pin;

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

6. A power take-off transmission for a vehicle as claimed in claim 4, wherein: the coil structures (55) of the spring device (50) are arranged in a mode that the overlapped areas of the adjacent coil structures (55) form a descending mode from the first end (51) to the second end (52), and at least partial areas of each adjacent coil structure (55) are connected, so that the energy accumulated by the coil structures (55) at the second end (52) forms an ascending mode towards the energy accumulated by the coil structures (55) at the first end (51).

7. A power take-off transmission for a vehicle as claimed in claim 5, wherein: the coil structures (55) of the spring device (50) are arranged in a mode that the overlapped areas of the adjacent coil structures (55) form a descending mode from the first end (51) to the second end (52), and at least partial areas of each adjacent coil structure (55) are connected, so that the energy accumulated by the coil structures (55) at the second end (52) forms an ascending mode towards the energy accumulated by the coil structures (55) at the first end (51).

8. A power take-off transmission for a vehicle as claimed 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) is gradually forced on the output shaft (90) from the second end (52) to the first end (51) to accumulate energy, and the output shaft (90) is driven to rotate.

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

10. A power take-off drive train for a vehicle as claimed in claim 7, wherein: the second output gear (62) rotates to directly drive the spring device (50) to rotate, and the spring device is gradually forced on the output shaft (90) from the second end (52) to the first end (51) to accumulate energy so as to drive the output shaft (90) to rotate.

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