CN216643069U - Electric gear shifting mechanism of gearbox - Google Patents
Electric gear shifting mechanism of gearbox Download PDFInfo
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- CN216643069U CN216643069U CN202123233980.4U CN202123233980U CN216643069U CN 216643069 U CN216643069 U CN 216643069U CN 202123233980 U CN202123233980 U CN 202123233980U CN 216643069 U CN216643069 U CN 216643069U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The utility model relates to the technical field of vehicle speed change, in particular to an electric gear shifting mechanism of a gearbox, which comprises an electric rotary driving assembly, an executing shifting finger, an executing shifting fork and a shifting fork shaft, wherein the shifting fork shaft is arranged on an external gearbox, the executing shifting fork is in sliding connection with the shifting fork shaft and is used for driving the external gearbox to change speed, two shifting blocks arranged at intervals are arranged on the back surface of the executing shifting fork, and the executing shifting finger is arranged at the output end of the electric rotary driving assembly and is arranged between the two shifting blocks so as to drive the executing shifting fork to shift. The electric gear shifting mechanism of the gearbox replaces the traditional hydraulic output part by the electric rotary driving component which is matched with the execution dial, avoids the arrangement of a hydraulic station and a hydraulic pipeline, has a simpler structure than the traditional hydraulic gear shifting mechanism, immediately drives the execution dial action by the electric rotary driving component after receiving a gear shifting signal, has quick response of gear shifting action, does not need to keep the running state of the electric rotary driving component during standby, and can reduce energy consumption.
Description
Technical Field
The utility model relates to the technical field of vehicle speed change, in particular to an electric gear shifting mechanism of a gearbox.
Background
With the increasing international and chinese requirements for energy utilization, the automobile is used as a main body of energy consumption, and the related requirements are also more and more strict. The traditional automobile mainly utilizes an engine to consume traditional fossil fuel combustion to output power, and the electric automobile mainly outputs power by consuming electric energy through a motor. On the basis of meeting the automobile power performance, the energy consumption is effectively reduced, and the method is a unified target of the automobile market at home and abroad at present.
For a traditional fuel automobile, gears of a gearbox are generally over four gears, and the automobile needs to be frequently shifted in the driving process. For electric vehicles, even with fewer gears, the vehicle inevitably requires gear shifting during driving. As the hydraulic gear shifting mechanism is mostly adopted to realize gear shifting in the prior art, and the hydraulic gear shifting adopts the working principle that the output end of the hydraulic system linearly moves back and forth to drive the gear shifting fork to linearly move back and forth to realize gear shifting of the gearbox. However, the hydraulic gear shifting machine generally comprises a hydraulic output component, a hydraulic station, a hydraulic pipeline and other components, so that the structure of the hydraulic gear shifting mechanism is complex, meanwhile, in order to achieve quick response of gear shifting action, the hydraulic station needs to be in a running state for a long time during standby, the output pressure of the hydraulic output component is ensured, and the energy consumption is high.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide the electric gear shifting mechanism of the gearbox, which has a simpler structure than the traditional hydraulic gear shifting mechanism, is quick in gear shifting action response and can reduce energy consumption.
In order to solve the technical problem, the gearbox electric gear shifting mechanism comprises an electric rotary driving assembly, an executing shifting finger, an executing shifting fork and a shifting fork shaft, wherein the shifting fork shaft is arranged on an external gearbox, the executing shifting fork is connected with the shifting fork shaft in a sliding mode and used for driving the external gearbox to change speed, two shifting blocks arranged at intervals are arranged on the back face of the executing shifting fork, and the executing shifting finger is arranged at the output end of the electric rotary driving assembly and between the two shifting blocks so as to enable the executing shifting finger to drive the executing shifting fork to shift.
As an improvement of the above scheme, the electric gear shifting mechanism of the transmission case further comprises a rotating base installed at the output end of the electric rotary driving component, and the execution finger is fixed on the side surface of the rotating base and is perpendicular to the rotating axis of the output end of the electric rotary driving component.
As an improvement of the above scheme, the gearbox electric gear shifting mechanism further comprises a telescopic positioning assembly, and a plurality of positioning grooves for the telescopic positioning assembly to extend into and leave are formed in the side surface of the rotating seat, which is far away from the execution dial finger, at intervals around the axis of the rotating seat.
As an improvement of the scheme, the three positioning grooves are arranged around the axis of the rotating seat at equal angular intervals.
As an improvement of the above scheme, the telescopic positioning assembly comprises an execution positioning seat, a positioning ball and a connecting spring, the execution positioning seat is installed on the electric rotary driving assembly and is provided with a containing cavity with an opening facing to the axis of the rotary seat, the positioning ball is connected with the containing cavity in a sliding manner, the connecting spring is arranged in the containing cavity, two ends of the connecting spring are respectively connected with the positioning seat and the positioning ball, and the positioning groove is a concave surface matched with the positioning ball.
As the improvement of above-mentioned scheme, flexible locating component still include with hold chamber sliding connection's slide, the slide is equipped with towards one side of location ball and holds the chamber that contradicts with the location ball, the slide offsets and is equipped with the guide bar that stretches into in the connecting spring with connecting spring one side of location ball dorsad.
As an improvement of the scheme, the electric rotary driving assembly comprises a connecting shell, and a driving motor and a planetary gear reduction box which are both arranged on the connecting shell, wherein the output end of the driving motor is connected with the input end of the planetary gear reduction box, and the executing finger is arranged at the output end of the planetary gear reduction box.
As an improvement of the scheme, the connecting shell is provided with a control socket electrically connected with the driving motor.
The implementation of the utility model has the following beneficial effects:
the gearbox electric gear shifting mechanism is characterized in that the electric rotary driving component is arranged on the shifting fork shaft, the shifting fork shaft is arranged on the shifting fork shaft, the electric rotary driving component is arranged on the shifting fork shaft, the shifting fork shaft is arranged on the shifting block, the electric rotary driving component is arranged on the shifting fork shaft, and the shifting fork shaft is arranged on the shifting block.
Drawings
FIG. 1 is a perspective view of an electric shifting mechanism of a transmission in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an electric shifting mechanism of a transmission according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a retractable positioning assembly according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an electric shifting mechanism of a transmission in a neutral state in an embodiment of the present invention;
FIG. 5 is a schematic diagram of an electric shifting mechanism of the transmission in a first gear state in accordance with an embodiment of the present invention;
fig. 6 is a schematic diagram of an electric shifting mechanism of a transmission in a second gear state according to an embodiment of the present invention.
In the figure: 1. an electric rotary drive assembly; 2. executing finger dialing; 3. executing a shifting fork; 4. a fork shaft; 31. a shifting block; 5. a rotating base; 6. a telescopic positioning component; 51. positioning a groove; 61. executing a positioning seat; 62. a positioning ball; 63. a connecting spring; 64. an accommodating chamber; 65. a slide base; 66. a guide bar; 11. Connecting the shell; 12. a drive motor; 13. a planetary gear reduction gearbox; 14. and a control socket.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea of the utility model claimed. It is only noted that the utility model is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the utility model.
As shown in fig. 1 to 6, the electric gear shifting mechanism of the transmission case in the embodiment of the present invention includes an electric rotary driving component 1, an executing finger 2, an executing fork 3, and a fork shaft 4, where the fork shaft 4 is installed on an external transmission case, the executing fork 3 is slidably connected to the fork shaft 4 and is used to drive the external transmission case to change speed, and actually, when the executing fork 3 works, the executing fork moves linearly back and forth in the external transmission case relative to the fork shaft 4, so as to shift gears of the external transmission case (a structure of the external transmission case and a structure of the executing fork 3 and the fork shaft 4 installed in the transmission case are not shown in the drawings).
The back of the execution shifting fork 3 is provided with two shifting blocks 31 which are arranged at intervals, and the execution shifting finger 2 is arranged at the output end of the electric rotation driving assembly 1 and is arranged between the two shifting blocks 31 so that the execution shifting finger 2 drives the execution shifting fork to shift. In fact, the electric rotation driving assembly 1 can output rotation action immediately when receiving a working signal, responds quickly, drives the execution shifting finger 2 to swing between the two shifting blocks 31, and drives the execution shifting fork 3 to linearly slide back and forth relative to the shifting fork shaft 4 by contacting with the shifting blocks 31.
It should be noted that, as shown in fig. 2, the electric rotary driving assembly 1 preferably includes a connecting housing 11, and a driving motor 12 and a planetary gear reduction box 13 both mounted on the connecting housing 11, an output end of the driving motor 12 is connected with an input end of the planetary gear reduction box 13, and the actuating finger 2 is mounted at an output end of the planetary gear reduction box 13. The driving motor 12 can adopt a high-speed servo motor, can rotate forward and backward, can set the number of rotation turns, and has quick response. Because the rotating speed of the driving motor 12 is 10000-20000 rpm, but the output torque is smaller, the planetary gear reduction box 13 converts the high-speed rotation of the output end of the driving motor 12 into the low-speed rotation of the output end of the planetary gear reduction box 13, that is, the low-torque output of the driving motor 12 is converted into the large torque output of the planetary gear reduction box 13, and sufficient torque is provided for the executing finger 2 to push the shifting block 31 to move, so that sufficient thrust is provided to push the executing shifting fork 3 to linearly slide back and forth relative to the shifting fork shaft 4; in addition, according to the transmission ratio of the planetary gear reducer 13, the number of output turns of the output end of the driving motor 12 when the executing finger 2 rotates for one turn can be calculated, so that the aim of controlling the swing angle of the executing finger 2 is fulfilled. The connecting shell 11 plays a role of bearing and protecting the driving motor 12 and the planetary gear reducer 13. Further, as shown in fig. 1, the connection housing 11 is preferably provided with a control socket 14 electrically connected to the driving motor 12, the control socket 14 is connected to an external vehicle controller through an external control plug and a control power line, and the external vehicle controller controls the driving motor 12 to operate so as to control the transmission electric gear shifting mechanism to perform a gear shifting operation.
The specific working principle of the electric gear shifting mechanism of the gearbox is as follows: as shown in fig. 4, when the output end of the electric rotary driving component 1 is static, the executing shift finger 2 is static and is not in contact with the shift block 31, the executing shift fork 3 is in the original position, and the external gearbox has no gear shifting action; as shown in fig. 5, when the output end of the electric rotary driving assembly 1 rotates forward, the executing shift finger 2 swings upward to contact with the shift block 31 above, and the executing shift finger 2 pushes the executing shift fork 3 to slide upward relative to the shift fork shaft 4 through the shift block 31 above to change the position, so that the external transmission box shifts gears; as shown in fig. 6, when the output end of the electric rotary driving assembly 1 rotates reversely, the executing finger 2 swings downward to contact with the lower shifting block 31, and the executing finger 2 pushes the executing fork 3 to slide downward relative to the fork shaft 4 through the lower shifting block 31 to change the position, so that the external transmission box is shifted. In practice, the linear displacement of the actuating fork 3 is controlled by controlling the rotation angle of the output shaft of the electric rotary drive assembly 1 so as to control the swing angle of the actuating finger 2. It should be noted that fig. 4, 5 and 6 show the actual swing direction of the transmission electric shift mechanism, and the actual swing direction of the transmission electric shift mechanism can be actually rotated according to actual needs.
The gearbox electric gear shifting mechanism is characterized in that the electric rotary driving component 1, the execution finger 2, the execution shifting fork 3, the shifting fork shaft 4 and the shifting block 31 are combined with one another, the electric rotary driving component 1 is matched with the execution finger 2 to replace a traditional hydraulic output part, a hydraulic station and a hydraulic pipeline are omitted, the structure is simpler than that of the traditional hydraulic gear shifting mechanism, the electric rotary driving component 1 immediately drives the execution finger 2 to act after receiving a gear shifting signal, the gear shifting action is quick in response, the electric rotary driving component 1 does not need to keep an operation state during standby, and energy consumption can be reduced.
In fact, as shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6, the electric gear shifting mechanism of the transmission case of the present invention further preferably includes a rotary base 5 installed at the output end of the electric rotary driving assembly 1, and the actuating finger 2 is fixed on the side of the rotary base 5 and is perpendicular to the rotation axis of the output end of the electric rotary driving assembly 1. The executing finger 2 is installed at the output end of the electric rotating driving component 1 through the rotating seat 5, and the executing finger 2 swings on the plane perpendicular to the rotating axis of the output end of the electric rotating driving component 1.
Further, as shown in fig. 2 to 6, the transmission electric gear shifting mechanism of the present invention further preferably includes a telescopic positioning assembly 6, and a side of the rotating base 5 away from the actuating finger 2 is provided with a plurality of positioning grooves 51 at intervals around an axis of the rotating base 5 for the telescopic positioning assembly 6 to extend into and leave. After the execution shifting fork 3 finishes shifting, the telescopic positioning assembly 6 extends into the positioning groove 51 to prevent the rotation of the rotating seat 5, and the external force of the transmission acting on the execution shifting fork 3 or the free rotation of the output end of the electric rotary driving assembly 1 to enable the execution shifting fork 3 to malfunction to cause shifting is prevented, so that the reliability of shifting of the execution shifting fork 3 is ensured. In fact, in this embodiment, it is preferable that three positioning grooves 51 are provided at equal angular intervals around the axis of the rotating base 5, and the positioning grooves correspond to the neutral position shown in fig. 4, the first gear position shown in fig. 5, and the second gear position shown in fig. 6, respectively, and are suitable for use in an electric vehicle. In addition, the number of the positioning grooves 51 of the electric gear shifting mechanism of the gearbox can be selected according to the gear number of the gearbox, and the angle interval of the positioning grooves 51 is selected according to the gear interval in the gearbox and the linear sliding distance of the execution shifting fork 3 driven by the execution finger 2 after rotating.
Specifically, as shown in fig. 3, the telescopic positioning assembly 6 preferably includes an execution positioning seat 61, a positioning ball 62 and a connection spring 63, the execution positioning seat 61 is installed on the electric rotation driving assembly 1 and is provided with an accommodating cavity 64 with an opening facing the axis of the rotation seat 5, the positioning ball 62 is slidably connected with the accommodating cavity 64, the connection spring 63 is placed in the accommodating cavity 64, two ends of the connection spring are respectively connected with the positioning seat and the positioning ball 62, and the positioning groove 51 is a concave surface matched with the positioning ball 62. When the execution shifting fork 3 finishes a shifting action, the opening of the accommodating cavity 64 is aligned with one positioning groove 51, and under the guiding action of the positioning groove 51 on the positioning ball 62 and the outward extending acting force of the connecting spring 63, the positioning ball 62 extends into the positioning groove 51 and presses the rotating seat 5, so that the rotating seat 5 is prevented from rotating, and the execution shifting fork 3 is ensured to be accurately positioned; when the actuating fork 3 starts a gear shifting action, the rotary seat 5 rotates to provide enough torque to overcome the outward extending acting force of the connecting spring 63, and the positioning ball 62 leaves the positioning groove 51 and compresses the connecting spring 63 inwards under the guiding action of the positioning groove 51 on the positioning ball 62, so that the rotary seat 5 rotates smoothly and the gear shifting action is realized.
Further, as shown in fig. 3, the telescopic positioning assembly 6 further preferably includes a sliding seat 65 slidably connected to the accommodating cavity 64, the accommodating cavity 64 abutting against the positioning ball 62 is disposed on one side of the sliding seat 65 facing the positioning ball 62, and a guide rod 66 extending into the connecting spring 63 is disposed on one side of the sliding seat 65 facing away from the positioning ball 62 and abutting against the connecting spring 63. The sliding direction of the positioning ball 62 is limited by the sliding connection of the sliding seat 65 and the accommodating cavity 64, the deviation of the positioning ball 62 is prevented, the stretching direction of the connecting spring 63 is limited by the guide rod 66 and the sliding seat 65, the connecting spring 63 is prevented from twisting during stretching, the outward extending acting force of the connecting spring 63 is ensured to be vertical to the rotating axis of the rotating seat 5, and the deviation of the positioning ball 62 is further prevented.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. Gearbox electric gearshift, its characterized in that: including electric rotary drive subassembly, execution shifting finger, execution shift fork and shifting fork axle, the shifting fork axle is installed on outside gearbox, execution shift fork and shifting fork axle sliding connection are used for driving outside gearbox variable speed, the execution shift fork back is equipped with the stirring piece that two intervals set up, the execution is dialled the finger and is installed at electric rotary drive subassembly output end and set up between two stirring pieces so that the execution is dialled the finger drive and is carried out the shifting fork and shift.
2. A transmission electrically variable shifting mechanism according to claim 1, wherein: the electric rotary driving assembly is characterized by further comprising a rotary seat arranged at the output end of the electric rotary driving assembly, and the execution finger is fixed on the side face of the rotary seat and is perpendicular to the rotary axis of the output end of the electric rotary driving assembly.
3. A transmission electrically variable shifting mechanism according to claim 2, wherein: still include flexible locating component, the side that the roating seat deviates from to carry out the group to indicate is provided with a plurality of constant head tanks that supply flexible locating component to stretch into and leave around the axle center interval of roating seat.
4. A transmission electrically variable shifting mechanism according to claim 3, wherein: the three positioning grooves are arranged around the axis of the rotating seat at equal angular intervals.
5. A transmission electrically variable shifting mechanism according to claim 3, wherein: the telescopic positioning assembly comprises an execution positioning seat, a positioning ball and a connecting spring, the execution positioning seat is installed on the electric rotary driving assembly and is provided with a containing cavity with an opening facing the axis of the rotary seat, the positioning ball is connected with the containing cavity in a sliding manner, the connecting spring is arranged in the containing cavity, two ends of the connecting spring are respectively connected with the positioning seat and the positioning ball, and the positioning groove is a concave surface matched with the positioning ball.
6. The transmission electrically variable shifting mechanism of claim 5, wherein: the flexible locating component still includes and holds chamber sliding connection's slide, the slide is equipped with towards one side of location ball and holds the chamber of contradicting with the location ball, the slide offsets and is equipped with the guide bar that stretches into in the connecting spring with connecting spring in location ball one side dorsad.
7. A transmission electrically variable shifting mechanism according to claim 1, wherein: the electric rotary driving assembly comprises a connecting shell, a driving motor and a planetary gear reduction box, wherein the driving motor and the planetary gear reduction box are both arranged on the connecting shell, the output end of the driving motor is connected with the input end of the planetary gear reduction box, and the execution dial finger is arranged at the output end of the planetary gear reduction box.
8. The transmission electrically variable shifting mechanism of claim 7, wherein: the connecting shell is provided with a control socket electrically connected with the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123233980.4U CN216643069U (en) | 2021-12-21 | 2021-12-21 | Electric gear shifting mechanism of gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123233980.4U CN216643069U (en) | 2021-12-21 | 2021-12-21 | Electric gear shifting mechanism of gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216643069U true CN216643069U (en) | 2022-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123233980.4U Active CN216643069U (en) | 2021-12-21 | 2021-12-21 | Electric gear shifting mechanism of gearbox |
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| Country | Link |
|---|---|
| CN (1) | CN216643069U (en) |
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2021
- 2021-12-21 CN CN202123233980.4U patent/CN216643069U/en active Active
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