TWI544166B - A power transmission switching device combined with a rotating shaft - Google Patents

Description

Transmission force switching device combined with rotating shaft

The invention relates to a transmission force switching device; in particular to a power switching device which is applied to a vehicle system and has a simplified structure; a direct switching control of a brake and a means for transmitting power output.

It is a well-known technique to apply to a vehicle, such as a shifting device, a gear set transmitting power, a differential, etc., to cause a vehicle to generate a forward, reverse, or idle idle motion. For example, Taiwan Patent No. 87,721, 364, "Automotive Transmission" (i.e., US 6146306 "AUTOMOBILE TRANSMISSION DEVICE") patent, provides a typical embodiment.

Conventional vehicle shifting transmission systems include manual, automatic, and continuous variable speed transmission systems; they pass the power of the engine shaft or motor shaft through a shift control mechanism, an input gear set that is mounted on an input shaft, And the (umbrella gear) differential mechanism, the output gear set and the like arranged on a power output shaft, the power is transmitted to the output shaft, so that the vehicle obtains the movement of different shift ratios. Basically, the shift control mechanism includes a plurality of spring-like bodies and control pushers respectively disposed inside and outside the input gear set; braking the worm wheel rotation via a manual or automatic shift control motor to selectively drive different balls (or a push rod) pushing the control pusher to make the spring body and the input gear set form an engaged or disengaged state, and the input gear sets of different numbers of teeth respectively drive the output gear set and the differential mechanism, so that the The output shaft produces different speeds to drive the vehicle.

Typically, these references show the design techniques for power conversion and transmission mechanisms in vehicle systems; if the redesign takes into account the fit of the power conversion unit and the transmission mechanism, its structural design conforms to a streamlined Condition, and make its construction different from the practitioner, or make it operate and power Passing more simple and direct effects will change its power transmission pattern, which is different from the old one.

Therefore, the main object of the present invention is to provide a power transmission switching device combined with a rotating shaft, which provides a power transmission, switching, and structural simplification; the transmission power switching device includes a connection power source. The rotating shaft is provided with a first driving mechanism, a second driving mechanism, and a brake that rotates with the rotating shaft. In essence, the brake is movable on the rotating shaft to selectively brake the first drive mechanism or the second drive mechanism for transmitting power to an output shaft output.

According to the driving force switching device of the present invention combined with the rotating shaft, the brake is formed into a circular or wheel-shaped structure, comprising two end faces, respectively defined as a first end face and a second end face; The end surface and the second end surface are respectively provided with teeth, and when the brake is moved to the first driving mechanism or the second driving mechanism, the first end surface or the second end surface respectively drives the first driving mechanism or the second driving mechanism .

According to the present invention, a driving force switching device combined with a rotating shaft, the brake is fitted (or pre-mounted) on an engine or motor rotating shaft, including a recess; at least a portion of a toggle tool is detained in the recess inside. The toggle tool can urge the brake to move in a position parallel to the axis of rotation or parallel to the axis of rotation; the brake is selectively caused to cause the first end face to drive the first drive mechanism or the second end face to drive the second drive mechanism.

The novelty, features, and other objects and effects of the present invention will be hereinafter described in conjunction with the detailed description of the drawings, as illustrated.

Referring to Figures 1, 2 and 3, the driving force switching device of the present invention combined with the rotating shaft includes a rotating shaft connected to the power source; respectively, which are denoted by reference numerals 70 and 71, respectively. The power source 70 (numbered in Figure 3) can be selected from the form of a motor, internal combustion engine or engine to cause rotational power of the rotating shaft 71. In a possible embodiment, the rotating shaft 71 includes an input shaft 71a and a output shaft 71b. In the following description of the embodiment, the rotating shaft 71 is disposed on the power source 70, and then the power is transmitted to the input shaft 71a and the output shaft 71b.

The first and second figures show that the rotating shaft 71 is provided with a first driving mechanism 10, a second driving mechanism 20, and a brake 30 that rotates with the rotating shaft 71. The first drive mechanism 10 selects a reduction gear mechanism including a (deceleration) drive wheel 11 and a (deceleration) driven wheel 12; the drive wheel 11 and the driven wheel 12 form a form of mutual transmission or engagement. Specifically, the driving wheel 11 is coupled to a rotating shaft 71 by a bearing 40, so that the driving wheel 11 is rotatable on the rotating shaft 71, but does not rotate synchronously with the rotating shaft 71. The driven wheel 12 is applied with the key 45 on the input shaft 71a; therefore, the driven wheel 12 and the input shaft 71a form a synchronous rotation type. It is also shown that the driving wheel 11 defines an end surface 11a and teeth 11b formed on the end surface 11a.

In the embodiment taken, the second drive mechanism 20 includes a drive wheel 21 and a driven wheel 22; the drive wheel 21 and the driven wheel 22 form a mutual transmission. The driving wheel 21 is coupled to a rotating shaft 71 by a bearing 40, so that the driving wheel 21 is rotatable on the rotating shaft 71, but does not rotate synchronously with the rotating shaft 71. The driven wheel 22 is keyed or mounted on a power output shaft (cylinder) 66 of a differential mechanism 65; the output shaft (cylinder) 66 transmits power to the output shaft 71b (this portion will be described later). Also, the driven wheel 22 and the output shaft (cylinder) 66 form a synchronously rotating type. It is also shown that the driving wheel 21 defines an end surface 21a and teeth 21b formed on the end surface 21a.

Referring again to Figures 1, 2 and 3, the brake 30 is disposed between the first drive mechanism 10 and the second drive mechanism 20. The brake 30 is formed into a circular or wheel-shaped structure, and includes two end faces, which are respectively defined as a first end face 31 and a second end face 32; the first end face 31 and the second end face 32 are respectively provided Tooth 31b, 32b. In the embodiment taken, the brake 30 is coupled to a sleeve or sleeve 33; and the brake 30 is moveable over the sleeve 33. The sleeve 33 is fixed (or pre-positioned) on the rotating shaft 71 by a key 45; therefore, the brake 30, the sleeve 33 and the rotating shaft 71 form a synchronous rotation type.

In a modified embodiment, the sleeve 33 is provided with a rail 34; in conjunction with the rail 34, the brake 30 is formed with a slot 37. After the brake 30 is fitted to the sleeve 33, the brake 30 can follow the track. 34 Move left and right according to the direction in the picture. A toggle tool 36 can push the brake 30 to move about the axis of rotation 71 or parallel to one of the axes of the axis of rotation 71; allowing the brake 30 to selectively drive the first end face 31 to the first drive mechanism 10 or the second end face 32 drives the second drive mechanism 20.

The figure shows that the brake 30 is provided with a recess 35; at least a portion of the toggle tool 36 is detained within the recess 35. In detail, the toggle tool 36 can be moved or moved freely left and right (or front, rear). In the embodiment, the toggle tool 36 defines a fixed end 36a and a free end 36b in the recess 35. The fixed end 36a is pivotally coupled to a shaft to allow the free end 36b to swing freely. The brakes 30 are pushed via a manual or automatic control system.

In a specific embodiment, the input shaft 71a is provided with an input gear set 50 and a shift control portion 55. According to the figure, the input gear set 50 selects a four-speed transmission system; therefore, the input gear set 50 includes the first ~ Fourth input gear 51~54. The first input gear 51 is directly disposed or fixed to the input shaft 71a; the second, third, and fourth input gears 52, 53, 54 are mounted on the input shaft 71a with the bearing 40. The second, third, and fourth input gears 52, 53, 54 are internally provided with spring-like bodies 52a, 53a, 54a, transmission sleeves 52b, 53b, 54b and control pushers 52c, 53c, 54c. Basically, the rotational power of the input shaft 71a is transmitted to the spring bodies 52a, 53a, 54a via the transmission sleeves 52b, 53b, 54b, and then the second, third, and fourth input gears 52, 53, 54 are rotated. state.

In the embodiment, the shift control unit 55 includes an (automatic) shift control motor 56. The (automatic) shift control motor 56 can detect the rotation of the (worm) turntable 57 according to the rotation speed of the input shaft 71a. The push rod or thrust bearing 40a is caused to push or not push the control push cylinders 52c, 53c, 54c. When the push rod or thrust bearing 40a pushes the control push cylinders 52c, 53c, 54c to the left in the third figure, the spring bodies 52a, 53a, 54a are forced to move to the left in the figure, leaving Where they are engaged with the drive sleeves 52b, 53b, 54b, the drive sleeves 52b, 53b, 54b are unable to transmit power to such spring bodies and the second, third, and fourth input gears 52, 53, 54. When the push rod or thrust bearing 40a does not push the control push cylinders 52c, 53c, 54c to move, the spring bodies 52a, 53a, 54a remain engaged with the drive sleeves 52b, 53b, 54b, the drive sleeve 52b, 53b, 54b powers the input shaft 71a to the spring bodies 52a, 53a, 54a and the second, third, and fourth input gears 52, 53, 54 as described above. It will be appreciated that the control shifting portion 55 can also be implemented in a manual mode of operation.

With respect to the input gear set 50, an output gear set 60 is disposed on the output shaft 71b; the output gear set 60 also selects a fourth-speed transmission system; therefore, includes the first to fourth output gears 61 that are rotatable freely. 64, meshing with the first to fourth output gears 51-54, respectively. Each output gear 61~ 64 is provided with a one-way bearing 40b; so that each of the output gears 61~64 can only drive the first-order gears with low-order gears, but the first-order gears cannot drive the lower first-order gears. For example, the first output gear 61 drives the second, third, and fourth output gears 62, 63, 64 and the differential mechanism 65, or the second output gear 62 drives the third and fourth gears 63, 64 and the differential mechanism 65; The fourth output gear 64 cannot transmit the third, second, and one output gears 63, 62, 61, or the third output gear 63 can only drive the fourth output gear 64, and cannot transmit the second and output gears 62, 61.

In the embodiment taken, the differential mechanism 65 and the output shaft (cylinder) 66 are mounted on the output shaft 71b, and the two ends of the output shaft 71b are used to pivot the wheel W, such as the imaginary line portion in the figure. The situation depicted. Each of the output gears 61 to 64 is fitted with a (roller) bearing 40 such that each of the output gears 61 to 64 is rotatably fitted to the output shaft (cylinder) 66 of the differential mechanism 65. Therefore, when the input gear set 50 drives the output gear set 60 to rotate, the output gear set 60 drives the differential mechanism 65 and the output shaft (cylinder) 66 to rotate, so that the output shaft 71b generates the driving wheels W of different rotational speeds.

The above-mentioned structural cooperation and transmission situation of the input gear set 50, the shift control unit 55, the output gear set 60, and the differential mechanism 65 (for example, a four-speed transmission system can obtain a combination of eight speeds) is a conventional knowledge. Skills; therefore, no longer detailed.

It should be noted that the above-mentioned drive wheel 21 and the driven wheel 22 of the second drive mechanism 20 form a mutual transmission type. In a possible embodiment, a belt or chain 23 is coupled between the driving wheel 21 and the driven wheel 22 to connect the driving wheel 21 and the driven wheel 22; that is, the powertrain of the driving wheel 21 passes through the belt. Or the chain 23 drives the driven wheel 22 to rotate.

Referring to FIG. 4, when the free end 36b of the dialing tool 36 is controlled or operated to drive the brake 30 to the left in the figure, the first end face 31 of the brake has a tooth shape. The object 31b will engage the teeth 11b of the first driving mechanism driving wheel 11, and drive the driving wheel 11 to rotate synchronously with the rotating shaft 71 (at this time, the brake 30 is defined in the first position); and the driving wheel 11 is driven. (Deceleration) The driven wheel 12 drives the input shaft 71a to rotate. Therefore, the input shaft 71a will cause the first input gear 51 to drive the first output gear 61 to rotate synchronously; and, the second, third, and fourth output gears 62, 63, 64 transmit power to the differential mechanism 65, so that the output shaft 71b Drive the wheel W to rotate and drive the vehicle forward.

When the shift control unit 55 obtains the signal of increasing the rotational speed of the input shaft 71a, the automatic shift control motor 56 and the turntable 57 are controlled to select the second, third, or fourth input force gear 52 of the input gear set 50 according to the different rotational speeds of the input shaft 71a. 53, 54 drives the second, third or fourth output gears 62, 63, 64 of the output gear set 60, so that the differential mechanism 65 drives the output shaft 71b to generate different rotational speed outputs. It can be understood that, when the output shaft 71b is output at different rotational speeds with respect to the shift control portion 55, the first drive mechanism 10 and the rotary shaft 71 of the power transmission switching device can provide a mechanism similar to the auxiliary engine brake.

Referring to FIG. 5, when the free end 36b of the dialing tool 36 is controlled or operated to drive the brake 30 to the right in the figure, the teeth 32b of the second end face 32 of the brake engage the second drive mechanism drive wheel 21. The tooth 21b drives the driving wheel 21 to rotate synchronously with the rotating shaft 71 (at this time, the brake 30 is defined to be in the second position); and the driving wheel 21 drives the driven wheel 22 to drive the output shaft through the belt or chain 23. The (cylinder) 66 and the differential mechanism 65 cause the output shaft 71a to rotate the wheel W to drive the vehicle to retreat.

3 to 5 above, the driving force switching device is slidably selected to drive the first or second driving mechanism 10, 20 via the brake 30, thereby achieving the function of controlling the forward and backward movement of the vehicle; and when the brake is in position 30 The intermediate position (ie, the position that is not transmitted with the first or second drive mechanisms 10, 20) is such that the vehicle is obtained The effect of idle idling. Compared with the old law, it is more streamlined and simple in terms of operation and coordination.

In the embodiment disclosed in FIG. 4, it is assumed that the rotational direction of the rotational shaft 71 (viewed from the left side in the drawing) is a counterclockwise direction as indicated by the arrow portion, and the operating brake 30 is driven to drive the first drive mechanism 10 The drive wheel 11 also rotates in a counterclockwise direction. Therefore, the driven wheel 12 drives the input shaft 71a and the input gear set 50 to form a clockwise rotation, so that the output gear set 60 rotates counterclockwise; and the differential mechanism 65, the output shaft (cylinder) 66 and the output shaft 71b are reversed. Turning in the hour hand direction causes the vehicle to move forward.

In the embodiment disclosed in FIG. 5, it is assumed that the rotational direction of the rotational shaft 71 (viewed from the left side in the drawing) is a clockwise direction as indicated by the arrow portion, and the operating brake 30 is driven to drive the second drive mechanism 10 The drive wheel 21 also rotates in a clockwise direction. Therefore, the driving wheel 21 drives the belt or the chain 23 and the driven wheel 22 to form a clockwise rotation; and the driving force shaft (cylinder) 66, the differential mechanism 65 and the output shaft 71b form a clockwise rotation, so that the vehicle is retracted.

Referring to Figure 6, a modified embodiment of the second drive mechanism 20 is depicted. The second driving mechanism 20 is provided with a driven wheel 24 between the driving wheel 21 and the driven wheel 22; the driven wheel 24 is coupled to a bearing 40, and is rotatably mounted on the input shaft 71a, and respectively The driving wheel 21 and the driven wheel 22 form an engagement type. Therefore, when the free end 36b of the dialing tool 36 is controlled or operated to drive the brake 30 to the right in the figure, the teeth 32b of the second end face 32 of the brake engage the teeth 21b of the second drive mechanism drive wheel 21, and The driving wheel 21 rotates synchronously with the rotating shaft 71; and the driving wheel 21 drives the driven wheel 24 to drive the driven wheel 22 to drive the output shaft (cylinder) 66 and the differential mechanism 65, so that the output shaft 71a drives the wheel W to rotate and drive The vehicle is back.

Referring to Figure 7, another modified embodiment of the second drive mechanism 20 is depicted. The second drive mechanism 20 is provided with a belt or chain 23 and a driven wheel 24 between the driving wheel 21 and the driven wheel 22. Specifically, the driven wheel 24 is coupled to a bearing 40, and is rotatably mounted on the input shaft 71a. The driven wheel 24 and the driving wheel 21 form an engagement type; and the belt or chain 23 is It is mounted on the driven wheel 24 and the driven wheel 22. Therefore, when the free end 36b of the dialing tool 36 is controlled or operated to drive the brake 30 to the right in the figure, the teeth 32b of the second end face 32 of the brake engage the teeth 21b of the second drive mechanism drive wheel 21, and The driving wheel 21 rotates synchronously with the rotating shaft 71; and the driving wheel 21 drives the driven wheel 24 to cause the driven wheel 24 to drive the belt or the chain 23, and drives the driven wheel 22 to drive the output shaft (cylinder) 66 and the differential mechanism 65. The output shaft 71a drives the wheel W to rotate, and drives the vehicle to retreat.

In the embodiment disclosed in FIG. 7, it is assumed that when the rotational direction of the rotational shaft 71 (viewed from the left side in the drawing) is counterclockwise, the driving wheel 30 that drives the second drive mechanism 10 is also formed. Turn counterclockwise. Therefore, the driving wheel 21 drives the driven wheel 24, the belt or the chain 23 and the driven wheel 22 to form a clockwise rotation; and drives the output shaft (cylinder) 66, the differential mechanism 65 and the output shaft 71b to form a clockwise rotation, so that the vehicle A backoff situation occurs. That is to say, in this embodiment, when the rotational direction of the rotating shaft 71 is maintained in the counterclockwise direction, the operating brake 30 drives the first driving mechanism 10 or the second driving mechanism 20 to control the vehicle to perform forward or backward movement. The role.

Typically, the combination of the transmission force switching device of the rotating shaft, in the provision of a structurally compact condition, includes the following design considerations: the structure of the transmission force switching device compared to the prior art The mating type is specially designed and arranged to make its construction different from the conventional one; and, its power transmission is moved by the operation of the brake 30, and the first driving mechanism is selectively driven. The type of the 10 or the second driving mechanism 20 is such that its operation and power transmission have a simpler and direct effect, and the power transmission type and the movement different from the old method are changed. It is not designed by conventional techniques. Its spatial form is different from the conventional ones, and it has unprecedented functions in the old law, which clearly shows considerable progress.

However, the above is only a possible embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the equivalent variations and modifications made by the scope of the present invention are covered by the scope of the present invention. .

10‧‧‧First drive mechanism

11‧‧‧Drive wheel

11a‧‧‧ end face

11b‧‧‧ teeth

12‧‧‧French wheel

20‧‧‧Second drive mechanism

21‧‧‧Drive wheel

21a‧‧‧ end face

21b‧‧‧ teeth

22‧‧‧French wheel

23‧‧‧Leather or chain

24‧‧‧ driven wheel

30‧‧‧ brake

31‧‧‧ first end face

31b, 32b‧‧‧ teeth

32‧‧‧second end face

33‧‧‧ sleeve

34‧‧‧ Track

35‧‧‧ recess

36‧‧‧Turning tools

36a‧‧‧Fixed end

36b‧‧‧Free end

37‧‧‧ slots

40‧‧‧ bearing

40a‧‧‧ thrust bearing

40b‧‧‧ one-way bearing

45‧‧‧ keys

50‧‧‧Into gear set

51‧‧‧First input gear

52‧‧‧First input gear

52a, 53a, 54a‧‧‧ class spring body

52b, 53b, 54b‧‧‧ drive sleeve

52c, 53c, 54c‧‧‧Control pusher

55‧‧‧Transmission Control Department

56‧‧·Transmission control motor

57‧‧‧ Turntable

60‧‧‧Output gear set

61‧‧‧First output gear

62‧‧‧Second output gear

63‧‧‧ Third output gear

64‧‧‧fourth output gear

65‧‧‧Differential mechanism

66‧‧‧Output shaft (cylinder)

70‧‧‧Power source

71‧‧‧Rotary axis

71a‧‧‧Inlet shaft

71b‧‧‧Output shaft

Χ‧‧‧ axis

Fig. 1 is a schematic view showing an embodiment of a driving force switching device of the present invention combined with a rotating shaft.

Fig. 2 is a schematic exploded view showing the structure of the driving force switching device of the present invention combined with the rotating shaft.

Fig. 3 is a schematic view showing an embodiment of the present invention and a combination of the input gear set, the shift control unit, the output gear set and the differential mechanism.

Figure 4 is a schematic view of the operational embodiment of Figure 3; showing the brake drive first drive mechanism.

Figure 5 is a schematic view of the operational embodiment of Figure 3; showing the brake drive second drive mechanism.

Figure 6 is a schematic view of a modified embodiment of the present invention; depicting the case where a driven wheel is disposed between the driving wheel and the passive end of the second driving mechanism.

Figure 7 is a schematic view of another modified embodiment of the present invention; depicting a case where a driven wheel and a belt or chain are disposed between the driving wheel and the passive end of the second driving mechanism.

10‧‧‧First drive mechanism

11‧‧‧Drive wheel

11a‧‧‧ end face

11b‧‧‧ teeth

12‧‧‧French wheel

20‧‧‧Second drive mechanism

21‧‧‧Drive wheel

21a‧‧‧ end face

21b‧‧‧ teeth

22‧‧‧French wheel

23‧‧‧Leather or chain

30‧‧‧ brake

31‧‧‧ first end face

31b, 32b‧‧‧ teeth

32‧‧‧second end face

33‧‧‧ sleeve

34‧‧‧ Track

35‧‧‧ recess

36‧‧‧Turning tools

36a‧‧‧Fixed end

36b‧‧‧Free end

37‧‧‧ slots

40‧‧‧ bearing

45‧‧‧ keys

66‧‧‧Output shaft (cylinder)

71‧‧‧Rotary axis

71a‧‧‧Inlet shaft

71b‧‧‧Output shaft

Χ‧‧‧ axis

Claims (15)

A driving force switching device combined with a rotating shaft, comprising: a rotating shaft defining an axis, wherein the rotating shaft is provided with: a rotatable first driving mechanism, wherein the first driving mechanism has a mounting rotation a driving wheel on the shaft, and a driven wheel driven by the driving wheel; a rotatable second driving mechanism having a driving wheel mounted on the rotating shaft and a driven wheel driven by the driving wheel; a brake that rotates with the rotating shaft; the brake is moved at least in a first position and a second position, selectively braking the first driving mechanism or the second driving mechanism, and the power output; the first driving The mechanism is a reduction gear mechanism; and the driving train of the first driving mechanism and the passive gear train form an intermeshing type; the driving gear of the first driving mechanism cooperates with a bearing device on the rotating shaft, so that the driving wheel is The rotating shaft is freely rotatable; the passive gear train of the first driving mechanism is coupled to an input shaft, so that the passive wheel and the input shaft shaft form a synchronous rotation type; the main body of the second driving mechanism The wheel train cooperates with a bearing device on the rotating shaft to rotate the driving wheel on the rotating shaft; the passive gear train of the second driving mechanism is on a power output shaft; and the first driving position is when the brake is in the first position The driving wheel and the rotating shaft of the mechanism rotate synchronously to drive the first driving mechanism to rotate the input wheel and the input shaft to generate a forward movement; when the brake is in the second position, the driving wheel and the rotating shaft of the second driving mechanism are synchronously rotated to drive The second drive mechanism rotates the driven wheel and the output shaft to generate a reverse motion. The driving force switching device combined with the rotating shaft as described in claim 1 of the patent application scope The driving mechanism of the first driving mechanism and the second driving mechanism respectively defines an end surface and teeth formed on the end surface. The transmission force switching device combined with the rotating shaft according to claim 1, wherein the passive gear train of the second driving mechanism is on a differential mechanism; the differential mechanism has a power output shaft (cylinder) The output shaft (cylinder) and the driven wheel form a mutual engagement pattern, so that the passive wheel and the output shaft (cylinder) form a synchronous rotation type. The driving force switching device combined with the rotating shaft according to claim 1, wherein the brake system comprises two end faces, respectively defined as a first end face and a second end face; the first end face and the second end face The end faces are respectively provided with teeth. The driving force switching device combined with the rotating shaft according to claim 1, wherein the brake is coupled to a sleeve; and the brake is movable on the sleeve; and the sleeve is The front button is placed on the rotating shaft with a key to form a synchronous rotation type of the brake and the rotating shaft. The transmission force switching device combined with the rotating shaft according to claim 5; wherein the sleeve is provided with a track; and the rail is formed with a groove for the brake to be set after the sleeve is set The brake can move along the track. The driving force switching device combined with the rotating shaft according to claim 1, wherein the brake system is combined with a toggle tool; the toggle tool pushes the brake at a position parallel to the axis of the rotating shaft. Move on. The transmission force switching device combined with the rotating shaft according to claim 7, wherein the brake is provided with a recess; at least a portion of the toggle tool is detained in the recess. The driving force switching device combined with the rotating shaft according to claim 8; wherein the dialing tool defines a fixed end and a free end in the recess; and the fixed end is pivotally connected to On one axis, the free end is formed into a swingable shape. The driving force switching device combined with the rotating shaft according to claim 1, wherein a belt or a chain is coupled between the driving wheel and the driven wheel of the second driving mechanism, and the driving wheel and the driven wheel are connected . The driving force switching device combined with the rotating shaft according to claim 1, wherein a driving wheel is disposed between the driving wheel and the driven wheel of the second driving mechanism, and the driving wheel and the passive wheel are respectively formed. Engagement type. The driving force switching device combined with the rotating shaft according to claim 11, wherein the driven wheel is coupled to a bearing and mounted on a force input shaft to form a rotatable type. The driving force switching device combined with the rotating shaft according to claim 1, wherein the driving mechanism of the first driving mechanism and the second driving mechanism respectively define an end surface and a tooth formed on the end surface; the brake The system includes two end faces, respectively defined as a first end face and a second end face; the first end face and the second end face are respectively provided with teeth; and the first end face tooth system and the first driving mechanism The teeth of the driving wheel form an engaging pattern; the teeth of the second end face and the teeth of the driving wheel of the second driving mechanism form an engaging pattern. The driving force switching device combined with the rotating shaft according to claim 1, wherein a belt or a chain and a driven wheel are disposed between the driving wheel and the driven wheel of the second driving mechanism. The transmission force switching combined with the rotating shaft as described in claim 14 of the patent application scope a device; wherein the driven wheel train is coupled to a bearing to be mounted on a force input shaft to form a rotatable type; the driven wheel train and the driving wheel form an engagement type; and the belt or chain is mounted on the slave The driving wheel and the passive wheel; when the driving wheel rotates synchronously with the rotating shaft, the driving wheel can drive the driven wheel, so that the driven wheel drives the belt or the chain, and drives the driven wheel to drive the output shaft.