TWM542715U - Dual-clutch gear-shifting mechanism of electric vehicle - Google Patents

Description

Electric vehicle double clutch shifting mechanism

This creation involves mechanical shifting technology, and more specifically, an electric vehicle dual clutch shifting mechanism.

The electric motorcycle motor currently produced on the market relies on an electronic controller to achieve a continuous variable speed transmission, which can be shifted from zero to rated speed and compared with the engine motorcycle throttle shift. However, this control method has a great disadvantage. When climbing and loading, the current is constantly increased during the operation of the motor to increase the torque to change the climbing ability. Therefore, the torque large current is large, the output torque is small, the power consumption is large, and the continuation capability is greatly shortened.

In order to overcome the current electric motorcycle motor, where the electronic controller has insufficient speed, the purpose of this creation is to use the controller to control the motor speed to simulate the engine motorcycle throttle, plus the mechanical dual clutch shifting mechanism, which can be controlled by machinery. The two-way clutch shifts, the main and passive gears do not move when the input speed can be changed, and the output shaft can obtain different speeds through the controllable two-way clutch. Therefore, this creation solves the lack of electric motorcycles in the case of climbing and loading, so that the torque is increased and the current is not increased, thereby ensuring the continuation ability and climbing ability of the electric motorcycle, and adapting to the electric motorcycles of various roads. Double clutch shifting mechanism.

This creation addresses the above issues through the following technical solutions: An electric vehicle dual clutch shifting mechanism includes a casing; a second gear shaft disposed in the casing; an upper end of the second gear shaft is sleeved with a driven gear, and the second gear shaft is The lower end sleeve is provided with a second-speed driving gear, a transmission gear is disposed in the middle of the second-speed gear shaft, and an output shaft is disposed in the casing, and further includes: a connecting sleeve, the upper end of which is sleeved on the bottom end of the output shaft, and the output shaft is connected with the connecting sleeve as an inclined surface which is recessed inward; a first gear is sleeved on the connection An outer gear of the upper end, the first gear is meshed with the transmission gear of the second gear shaft, the inner gear of the first gear is provided with a wedge groove, and the first groove is provided with a first roller and a card spring Locking or separating the first gear and the connecting sleeve from the output shaft through the latch spring and a first roller; a second gear shaft disposed in the housing and located at the output shaft a one-way overrunning clutch disposed on an upper end of the second speed shaft, and an outer side of the one-way overrunning clutch is provided with a lower end of the connecting sleeve, the one-way overrunning clutch and the second speed shaft Engagement; a second-speed controllable shifting mechanism disposed under the one-way overrunning clutch, the second-speed controllable shifting mechanism can lock or release the output shaft, and the second gear is controllable a gear mechanism meshes with the second gear drive gear, and transmits a second gear of the second gear shaft The output shaft rotates in a second gear position; the driven gear drives the second gear shaft and the second gear to rotate, and when the second gear control shift mechanism releases the second gear, a gear shaft drives the output shaft, the one-way overrunning clutch and the second gear shaft to rotate in a gear position; when the second gear controllable shifting mechanism locks the second gear shaft, the second gear drive gear The second axis of the output shaft is rotated.

The second gear controllable shifting mechanism comprises: a connecting bearing sleeved on the second gear shaft, and the connecting bearing is located below the one-way overrunning clutch; a second gear cam is sleeved on the a second gear shaft and located below the connecting bearing; a controllable shifting cage, Nesting on the outer side of the second-speed cam, and the controllable shifting cage is connected to the second-speed cam through a positioning pin, the controllable shifting cage is provided with a groove; the second-speed roller Provided between the controllable shifting cage and the second gear cam, the controllable shifting cage, the second gear cam and the second gear when the second gear roller falls within the groove The shaft is locked; a hook is fixed to a support frame by a nut, the hook is provided with a cable, the hook abuts the controllable shift holder, and the hook is at the cable Pulling off can be disengaged from the controllable shifting cage; a second-speed passive gear is sleeved on the outer side of the connecting bearing and the controllable shifting cage, the second-speed passive gear and the second a gear drive gear meshing, the second gear driven gear and the controllable shift cage being connected by a tension spring; when the hook is disengaged from the controllable shift cage, the controllable shift cage is The second speed cam is relatively rotationally moved by the tension spring, and the second speed roller falls into the groove to be Controllable shifting holder, said second gear of said second gear shaft and cam lock.

A protrusion is disposed on an outer edge of the controllable shift holder, and the protrusion is abutted through the protrusion.

The hook is provided with two perforations, and the nut passes through one of the perforations to fix the hook to the support frame; the cable passes through the other perforation to drive the hook Turn.

An inner surface of the second speed cam is engaged with the second speed shaft through a spline, and an outer surface of the second speed cam is evenly distributed with a bump.

The second gear may fall within the recess when the lug is aligned intermediate the two adjacent grooves on the controllable shift cage.

The support frame is fixed in the housing, and one end of the support frame extends upward And forming an upper and lower support rods for fixing the hooks.

The creation has the advantages of simple and compact structure, easy assembly and assembly. When the input speed can be changed, the main and passive gears do not move. Through the controllable two-way clutch, the output shaft can obtain different speeds, and the effect is obvious.

1‧‧‧shell

2‧‧‧second gear shaft

21‧‧‧passive gear

22‧‧‧second gear drive gear

23‧‧‧Transmission gear

3‧‧‧ Output shaft

4‧‧‧Connecting sleeve

5‧‧‧ first gear

51‧‧‧Wedge groove

6‧‧‧1st roller

7‧‧‧One-way overrunning clutch

8‧‧‧second gear shaft

9‧‧‧Connected bearings

10‧‧‧second gear passive gear

11‧‧‧ hook

111‧‧‧Perforation

12‧‧‧Controllable shifting cage

121‧‧‧ Groove

13‧‧‧Locating pin

14‧‧‧second gear cam

141‧‧‧Bumps

15‧‧‧Support frame

16‧‧‧Spring

17‧‧‧second gear

18‧‧‧Laso

Fig. 1 is a cross-sectional view showing an embodiment of the present creation.

Fig. 2 is a schematic view showing the structure of the C-C in the first drawing.

Fig. 3 is a schematic view showing the structure of the B-B in the first drawing.

Figure 4 is a schematic view of the assembly structure of the second gear cam and the controllable shift retainer of the present invention.

Fig. 5 is a schematic view showing the structure of the A-A in the first drawing.

Fig. 6 is a schematic view showing the structure of the A-A direction in Fig. 1 in another state.

Figure 7 is a schematic view of the D-direction structure of Figure 1.

The present invention will be described in detail below in conjunction with specific embodiments.

Referring to Fig. 1, Fig. 1 is a cross-sectional view showing an embodiment of the present invention. The electric vehicle dual clutch shifting mechanism in the embodiment comprises a housing 1, a second gear shaft 2, an output shaft 3, a connecting sleeve 4, a first gear 5, a first roller 6, a one-way overrunning clutch 7, and two Gear shaft 8 and second gear controllable shifting mechanism and other components.

As shown in Fig. 1, the second gear shaft 2 is provided in the casing 1. The upper end of the second gear shaft 2 is sleeved with a driven gear 21 for connecting a motor, and the driven gear 21 is driven by the motor to drive the second gear shaft 2 to rotate. The second gear shaft 2 The lower end sleeve is provided with a second-speed driving gear 22, and a transmission gear 23 is disposed in the middle of the second-speed gear shaft 2.

The output shaft 3 is disposed in the housing 1. The upper end of the connecting sleeve 4 is sleeved on the bottom end of the output shaft 3, and the output shaft 3 is in contact with the connecting sleeve 4 as a slope which is recessed inward. A first gear 5 is sleeved on the outer side of the upper end of the connecting sleeve 4. The first gear 5 meshes with the transmission gear 23 of the second speed gear shaft 2. As shown in FIG. 5 and FIG. 6, the inner surface (ie, the inner circle) of the first gear 5 is provided with a wedge groove 51, and the wedge groove 51 is provided with a first roller 6 and a latch spring. The latch spring and the first roller 6 lock or separate the first gear 5 and the connecting sleeve 4 from the output shaft 3.

The second speed shaft 8 is disposed in the housing 1 and below the output shaft 3. A one-way overrunning clutch 7 is sleeved on the upper end of the second speed shaft 8. The lower end of the connecting sleeve 4 is sleeved on the outer side of the one-way overrunning clutch 7. The one-way overrunning clutch 7 meshes with the second speed shaft 8.

a second gear controllable shifting mechanism is disposed below the one-way overrunning clutch 7, the second gear controllable shifting mechanism can lock or release the output shaft 3, the second gear controllable shifting mechanism and The second-speed driving gear 22 is meshed, and the second-speed driving gear 22 of the second-speed gear shaft 2 drives the second gear of the output shaft 3 to rotate. The second-speed controllable shifting mechanism includes a connecting bearing 9, a second-speed driven gear 10, a hook 11, a controllable shifting cage 12, a positioning pin 13, a second-speed cam 14, a tension spring 16, and a second-speed roller 17.

As shown in FIG. 1, the connecting bearing 9 is sleeved on the second speed shaft 8, and the connecting bearing 9 is located below the one-way clutch 5. The second gear cam 14 is sleeved on the second speed shaft 8 and the second speed cam 14 is located below the connecting bearing 9. The controllable shifting cage 12 is sleeved on the outer side of the second speed cam 14 , and the controllable shifting cage 12 and the second speed cam 14 are transmitted through The positioning pins 13 are connected as shown in Figs. 2 and 7. A groove 121 is defined in the controllable shifting cage 12. The second roller 17 is disposed between the controllable shifting cage 12 and the second gear cam 14, as shown in FIG. 3, when the second gear roller 17 is in the middle of the groove 121, The controllable shifting cage 12 and the second speed cam 14 are locked with the second speed shaft 8.

Referring to Fig. 1, the hook 11 is fixed to a support frame 15 by a nut. A hook 18 is disposed on the hook 11 , and a protrusion is disposed on an outer edge of the controllable shift holder 12 , and the hook 11 abuts a protrusion on the controllable shift holder 12 , and The hook 11 is detachable from the controllable shifting cage 12 when the cable 18 is pulled, as shown in Figures 2 and 7. The hook 11 is provided with two perforations, and the nut passes through one of the perforations to fix the hook 11 to the support frame 15; the cable 18 passes through the other through hole 111. The second-speed driven gear 10 is sleeved on the outer side of the connecting bearing 9 and the controllable shifting cage 12. The second-speed driven gear 10 meshes with the second-speed driving gear 22, and the second-speed driven gear 10 is coupled to the controllable shifting cage 12 via a tension spring 16. When the hook 11 is disengaged from the controllable shifting cage 12, the controllable shifting cage 12 and the second-speed cam 14 are relatively rotationally moved by the tension spring 16, the second The shifting roller 17 falls into the recess 121 to lock the controllable shifting cage 12, the second speed cam 14 and the second speed shaft 8 to each other.

An inner surface of the second speed cam 14 is engaged with the second speed shaft 8 via a spline, and the outer surface of the second speed cam 14 is evenly distributed with a bump 141. When the protrusion 141 is aligned between the two adjacent grooves 121 on the controllable shift holder 12, the second-stage roller 17 may fall within the groove 121, so that The shift holding cage 12 and the second speed cam 14 are locked with the second speed shaft 8.

The support frame 15 is fixed in the casing 1. One end of the support frame 15 protrudes upward and is formed with upper and lower support bars for fixing the hooks 11.

The working principle of the present invention is that an external DC motor drives the driven gear 21 to rotate, and the driven gear 21 drives the transmission shaft 23 and the second-speed driving gear 22 on the second-speed gear shaft 2 to rotate. When the hook 11 and the controllable shifting cage 12 are in the state of FIG. 2, the positioning pin 13 causes the controllable two-way clutch to be in the state of FIG. 3, and the second-stage roller 17 and the second-speed cam 14 and the second-speed shaft 8 are separated. The second gear passive tooth 10 and the second gear shaft 8 are also in a separated state, and the mechanism of the present invention is in the first gear state.

When the mechanism of the present creation is in the first gear state, the second gear shaft 2 drives the first gear 5 . As shown in Fig. 5, the one-way overrunning clutch 7 and the first gear 5 rotate clockwise, and the first roller 6 and the first gear 5 and the connecting sleeve 4 automatically lock and rotate the output shaft 3 under the action of the inclined surface. Referring to Fig. 1, the one-way overrunning clutch 7 is in a disengaged state, and the output shaft 3 and the second speed shaft 8 are in a disengaged state, at which time the first gear is in a normal working state.

In order to change to the second gear, the second gear drive gear 22 drives the second gear driven gear 10, as shown in Fig. 2, as long as the cable 18 is pulled by the hook 11, the hook 11 and the controllable shifting cage 12 are completely removed. Open, as shown in Figure 7. Under the force of the tension spring 16, the controllable shifting cage 12 and the second-speed cam 14 are relatively rotationally moved, as shown in FIG. 4 and FIG. 1 under the force of the inclined surface; the second-speed cam 14 and the second-speed passive The gear 10 and the second-speed roller 17 are automatically locked, and the second-speed shaft 8 is driven to rotate clockwise. When the second-speed shaft 8 rotates clockwise, the standard bearing one-way overrunning clutch 7 automatically locks, driving the connecting sleeve 4, and simultaneously driving the output shaft 3 to rotate. Referring to Fig. 6, when the output shaft 3 is rotated clockwise, the first roller 6 is automatically separated from the connecting sleeve 4 and the first gear 5. Referring to Fig. 1, the second speed shaft 8 drives the one-way overrunning clutch 7, and the one-way overrunning clutch 7 drives the connecting sleeve 4 to rotate the output shaft 3 counterclockwise. At this time, the shifting mechanism of the present invention is in the second working state. .

It should be understood that these embodiments are only used to illustrate the creation and not to limit the creation. The scope of the work. In addition, it should be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the present invention. These equivalents also fall within the scope defined by the scope of the appended claims.

1‧‧‧shell

2‧‧‧second gear shaft

21‧‧‧passive gear

22‧‧‧second gear drive gear

23‧‧‧Transmission gear

3‧‧‧ Output shaft

4‧‧‧Connecting sleeve

5‧‧‧ first gear

6‧‧‧1st roller

7‧‧‧One-way overrunning clutch

8‧‧‧second gear shaft

9‧‧‧Connected bearings

10‧‧‧second gear passive gear

11‧‧‧ hook

12‧‧‧Controllable shifting cage

13‧‧‧Locating pin

14‧‧‧second gear cam

15‧‧‧Support frame

16‧‧‧Spring

17‧‧‧second gear

Claims (7)

An electric vehicle dual clutch shifting mechanism includes: a casing; a second gear shaft disposed in the casing; an upper end of the second gear shaft is sleeved with a driven gear, and the second gear shaft The second end of the second gear is provided with a transmission gear, and the second gear shaft is provided with a transmission gear; an output shaft is disposed in the casing, wherein the electric vehicle dual clutch shifting mechanism further comprises: a connecting sleeve, the upper end of which is sleeved on the bottom end of the output shaft, and the output shaft is connected with the connecting sleeve as an inclined surface which is recessed inward; a first gear is sleeved on the connecting sleeve On the outer side of the upper end, the first gear is meshed with the transmission gear of the second gear shaft, the inner gear of the first gear is provided with a wedge groove, and the wedge groove is provided with a first roller and a card spring. Locking or separating the first gear and the connecting sleeve from the output shaft through the latch spring and a first roller; a second gear shaft disposed in the housing and located below the output shaft a one-way overrunning clutch that is sleeved on the upper end of the second speed shaft, and a lower end of the one-way overrunning clutch is provided with a lower end of the connecting sleeve, the one-way overrunning clutch is engaged with the second speed shaft; a second gear controllable shifting mechanism is disposed below the one-way overrunning clutch The second-speed controllable shifting mechanism can lock or release the output shaft, and the second-speed controllable shifting mechanism meshes with the second-speed driving gear, and the second-speed active through the second-speed gear shaft The gear drives the output shaft to rotate in the second gear; the driven gear drives the second gear shaft and the second gear to rotate, and when the second gear control shift mechanism releases the second gear, The first gear shaft drives the output The shaft, the one-way overrunning clutch and the second-speed shaft rotate in a gear position; when the second-speed controllable shifting mechanism locks the second-speed shaft, the second-speed driving gear drives the output shaft in the second gear Bit rotation. The electric vehicle dual clutch shifting mechanism according to claim 1, wherein the second gear controllable shifting mechanism comprises: a connecting bearing sleeved on the second gear shaft, and the connecting a bearing is located below the one-way overrunning clutch; a second gear cam is sleeved on the second gear shaft and located below the connecting bearing; a controllable shifting cage is sleeved on the An outer side of the second gear cam, and the controllable shifting cage is coupled to the second gear cam through a positioning pin, the controllable shifting cage is provided with a groove; the second gear is disposed at the Between the controllable shifting cage and the second gear cam, when the second gear roller falls within the groove, the controllable shifting cage, the second gear cam and the second The gear shaft is locked; a hook is fixed to a support frame by a nut, the hook is provided with a cable, the hook abuts the controllable shifting cage, and the hook is at the cable When the pulling is separated from the controllable shifting cage; the first and second gears are set on the connecting bearing and An outer side of the controllable shifting cage, the second-speed driven gear meshes with the second-speed driving gear, and the second-speed driven gear and the controllable shifting cage are connected by a tension spring; the hook When the controllable shifting cage is disengaged, the controllable shifting cage and the second speed cam are relatively rotationally moved by the tension spring, and the second speed roller falls into the groove The controllable shifting cage, the second gear cam and the second gear shaft are locked. The electric vehicle dual clutch shifting mechanism according to claim 2, wherein the A protrusion is disposed on an outer edge of the shift control cage, and the protrusion is abutted through the protrusion. The electric vehicle dual clutch shifting mechanism according to claim 2, wherein the hook is provided with two perforations, and the nut passes through one of the perforations to fix the hook to the support And the cable passes through the other of the perforations to drive the hook to rotate. The electric vehicle dual clutch shifting mechanism according to claim 2, wherein an inner surface of the second speed cam is engaged with the second speed shaft via a spline, and an outer surface of the second speed cam is evenly distributed Bump. The electric vehicle dual clutch shifting mechanism according to claim 5, wherein when the bump is aligned with an adjacent two grooves on the controllable shifting cage, the two The track roller falls within the recess. The electric vehicle dual clutch shifting mechanism according to claim 2, wherein the support frame is fixed in the housing, and one end of the support frame protrudes upward and is formed to fix the hook , the lower support rod.