CN217804328U - Electric variable-speed drive axle gear shifting structure - Google Patents
Electric variable-speed drive axle gear shifting structure Download PDFInfo
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- CN217804328U CN217804328U CN202221951120.6U CN202221951120U CN217804328U CN 217804328 U CN217804328 U CN 217804328U CN 202221951120 U CN202221951120 U CN 202221951120U CN 217804328 U CN217804328 U CN 217804328U
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- steering
- box body
- gear shifting
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- rod
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Abstract
The utility model provides an electronic variable speed drive axle structure of shifting, include: a box body; the driving mechanism is arranged on the box body; the steering mechanism is arranged in the box body, is connected with the driving mechanism and is internally provided with an elastic component; the gear shifting sheet is transversely and slidably arranged in the box body and is connected with the steering mechanism; under the driving of the driving mechanism, the steering mechanism can push the gear shifting sheet to slide from one side of the gear shifting sheet through the elastic component in a reversing way. The utility model discloses a steering mechanism realizes carrying out equidirectional promotion and then realize shifting to the plectrum of shifting, avoids elastic component to be in extension or compression state for a long time, and then avoids tired, prolongs the life-span of gearbox.
Description
Technical Field
The utility model relates to the technical field of auto-parts, concretely relates to electronic variable speed transaxle structure of shifting.
Background
A transaxle is a mechanism located at the end of a drive train that can change the speed and torque from the transmission and transmit them to the drive wheels-a mechanism for changing the speed and torque from the engine, in which the ratio of the output and input shafts is changed, fixed or in steps, also called a gearbox. The gearbox is developed to a great variety, and has a complex structure and a simple structure. The simple gearbox has high efficiency, simple structure and convenient use, and even the gear number is small, the electric vehicles applying the simple gearbox are also many. In the prior art, a shift plectrum (namely a shift structure) is pulled by a pull rod to shift the speed of a commonly used two-gear simple transmission, so that a middle driving wheel and driven wheels on two sides are connected by a driving gear to realize speed change.
The pull rod can only move in one direction in a traction mode, so that only one-way gear shifting can be realized, the spring is used for driving the pull rod to move in the reverse direction, the spring is compressed or tensioned for a long time, the spring fails along with the increase of the service life, and the pull rod cannot be retracted, so that the transmission can only be kept in one gear and loses the speed changing capability. On the basis of keeping the structure simple, the service life of the gearbox is prolonged, and the problem to be solved is urgent.
SUMMERY OF THE UTILITY MODEL
Not enough to exist among the prior art, the utility model provides an electronic variable speed drive axle gear shifting structure prolongs the gearbox life-span.
The utility model provides an electronic variable speed drive axle gear shifting structure, include:
a box body;
the driving mechanism is arranged on the box body;
the steering mechanism is arranged in the box body, is connected with the driving mechanism and is internally provided with an elastic component;
the gear shifting sheet is transversely and slidably arranged in the box body and is connected with the steering mechanism;
under the driving of the driving mechanism, the steering mechanism can push the gear shifting sheet to slide from one side of the gear shifting sheet through the elastic component in a reversing way.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses in the technique, realize carrying out equidirectional promotion and then realize shifting to the plectrum of shifting through steering mechanism, avoid elastic component to be in extension or compression state for a long time, and then avoid tired, prolong the life-span of gearbox.
Preferably, the steering mechanism includes:
the steering circular ring is rotatably arranged in the box body, and the end part of the gear shifting plectrum is positioned in the steering circular ring and is connected with the driving mechanism;
one end of the elastic component is connected with the inner wall of the steering circular ring, and the other end of the elastic component is rotationally connected with the end part of the gear shifting plectrum;
wherein, the driving mechanism drives the steering ring to rotate.
Preferably, the elastic member includes:
the sleeve is connected with the gear shifting plectrum;
one end of the inner rod is connected with the inner wall of the steering circular ring, and the other end of the inner rod is inserted into the sleeve in a sliding manner;
the long-acting spring is sleeved on the sleeve and the inner rod;
wherein, the both ends of long-term spring are supported against with the tip of shifting the plectrum and turning to the inner circle of ring respectively.
Preferably, the periphery of the steering ring is provided with a rack;
the drive mechanism includes:
the motor is arranged on the box body;
the driving gear is coaxially connected with a rotating shaft of the motor;
wherein, the driving gear is meshed with the rack outside the steering ring.
Preferably, the shift paddle includes:
a claw;
the main rod is connected with the upper ends of the clamping jaws;
the steering rod is coaxially connected with the upper end of the main rod;
the steering tube is sleeved on the steering rod in a rotating manner;
wherein, the steering tube is connected with the inner rod, and the main rod is arranged in the box body in a sliding way.
Preferably, the device also comprises two supporting bars which are parallel to each other;
two ends of the supporting bar are respectively connected with the inner wall of the box body;
grooves are respectively formed in the two sides of the main rod; the groove on the main rod is in sliding fit with the supporting bar on the same side; the support bar is connected with a limiting block; the limiting blocks on the two supporting bars are positioned at the two sides of the main rod.
Preferably, the periphery of the steering ring is provided with grooves communicated end to end; a plurality of fixed blocks are arranged on the inner wall of the box body; one end of the fixing block, which is far away from the inner wall of the box body, is in sliding fit with the groove at the periphery of the steering ring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic view of an internal structure of a shift structure of an electric variable speed drive axle according to an embodiment of the present invention;
FIG. 2 is a top plan view of the internal structure of the electric variable speed transaxle shifting structure of FIG. 1;
FIG. 3 is an AA side view (with only the upper structure cut away) of the inner structure of the electric variable speed transaxle shift structure of FIG. 2;
FIG. 4 is a prior art rear axle structure of the electrically variable transaxle shift structure of FIG. 1;
fig. 5 is a prior art rear axle shift structure of the electric variable speed drive axle shift structure of fig. 1.
Reference numerals:
1. a box body; 11. a supporting strip; 12. a limiting block; 13. a fixed block;
2. a drive mechanism; 21. a motor; 22. a drive gear;
3. a steering mechanism; 31. an elastic member; 311. a sleeve; 312. an inner rod; 313. a long-acting spring; 32. a steering ring;
4. a gear shifting plectrum; 41. a claw; 42. a main rod; 43. a steering lever; 44. a steering tube;
5. a change wheel;
6. a driving wheel;
7. a driven wheel;
8. a pull rod;
9. a return spring.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In this application, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediary. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1 to 5, an electric variable transaxle shifting structure includes:
a box body 1;
the driving mechanism 2 is arranged on the box body 1;
a steering mechanism 3 which is arranged in the box body 1, is connected with the driving mechanism 2 and is internally provided with an elastic component 31;
the gear shifting sheet 4 is transversely and slidably arranged in the box body 1 and is connected with the steering mechanism 3;
wherein, under the drive of the driving mechanism 2, the steering mechanism 3 can push the shift shifting sheet 4 from the side of the shift shifting sheet 4 to slide through the elastic component 31 in a reversing way.
The linear traction type is high in speed, low in cost and high in cost performance. In the prior art, as shown in fig. 4 and 5, the lower end of a shift plectrum 4 is provided with a C-shaped claw 41, the periphery of a speed change wheel 5 is provided with a groove, and the claw 41 of the shift plectrum 4 can be slidably clamped in the groove of the speed change wheel 5; the speed change gear connects the middle driving wheel 6 with the left driven wheel 7 through the gear teeth of the inner ring; the pull rod 8 moves rightwards to drive the gear shifting plectrum 4 to further push the change gear 5 to move rightwards, and then the middle driving wheel 6 is connected with the right driven wheel 7; the driven wheels 7 on the two sides are respectively connected with two groups of gears with different transmission ratios; therefore, the shift of the shift paddle 4 can be performed by moving left and right.
It should be noted, however, that in the prior art, it is common for the shift finger 4 to move to the right by virtue of the traction of the pull rod 8, while the shift finger 4 to move to the left by virtue of the return spring 9. If the driving wheel 6 is connected with the driven wheel 7 on the right side through the change wheel 5 for a long time, the return spring 9 is stretched for a long time, and the return spring 9 fails in time, so that the gear shifting plectrum 4 cannot be driven to move left, and gear shifting cannot be realized.
The steering mechanism 3 can push the shift paddle 4 from both sides of the shift paddle 4, respectively. In gear 1, as shown in fig. 1, the shift gate 4 connects the driving wheel 6 with the left driven wheel 7; the elastic member 31 is in a normal state (not compressed nor extended); during gear shifting, the steering mechanism 3 applies a rightward force to the gear shifting piece 4, at the moment, the elastic component 31 is compressed until the gear shifting piece 4 moves rightwards, the driving wheel 6 is connected with the driven wheel 7 on the right side through the gear shifting piece 4 and is in a gear 2, and the elastic component 31 is restored to a normal state. The present arrangement allows the resilient member 31 to be compressed only for a brief period of shifting, thereby avoiding fatigue failure.
Further, the steering mechanism 3 includes:
the steering ring 32 is rotatably arranged in the box body 1, and the end part of the gear shifting plectrum 4 is positioned in the steering ring 32 and is connected with the driving mechanism 2;
an elastic member 31 having one end connected to an inner wall of the steering ring 32 and the other end rotatably connected to an end of the shift paddle 4;
wherein the driving mechanism 2 drives the steering ring 32 to rotate.
The steering ring 32 rotates under the drive of the driving mechanism 2; the connection point of the elastic member 31 and the steering ring 32 can move to the other side of the shift plectrum 4 along with the rotation of the steering ring 32, so that the thrust direction of the elastic member 31 to the shift plectrum 4 is changed, and the shift plectrum 4 can slide to different directions to shift gears.
Further, the elastic member 31 includes:
a sleeve 311 connected to the shift paddle 4;
an inner rod 312, one end of which is connected with the inner wall of the steering ring 32 and the other end of which is inserted into the sleeve 311 in a sliding manner;
the long-acting spring 313 is sleeved on the sleeve 311 and the inner rod 312;
wherein, two ends of the long-acting spring 313 respectively abut against the end part of the gear shifting plectrum 4 and the inner ring of the steering ring 32.
During operation, the rotating ring is driven by the driving mechanism 2 to rotate, as shown in fig. 2, the rotating ring rotates clockwise, the total length of the inner rod 312 and the sleeve 311 is shortened, the long-acting spring 313 is compressed until the sleeve 311 and the inner rod 312 are positioned on the left side of the gear shifting plectrum 4, and the gear shifting plectrum 4 moves to the right under the action of the long-acting spring 313 and is always under the action of the long-acting spring 313 until gear shifting is completed. In the process, the long-acting spring 313 is compressed only once, and when the gear shifting is not needed, the long-acting spring 313 is in a normal state (original length) and cannot be fatigued; moreover, the rotation of the steering ring 32 can only rotate towards one direction, the gear shifting does not need to adjust the steering, obviously, the requirement for controlling the gear shifting is lower, and the gear shifting device is simple in structure and strong in reliability.
Further, a rack is arranged on the periphery of the steering ring 32;
the drive mechanism 2 includes:
a motor 21 installed on the case 1;
a driving gear 22 coaxially connected with the rotating shaft of the motor 21;
wherein the drive gear 22 meshes with a rack outside the steering ring 32.
The motor 21 can adopt the existing self-locking motor 21, and the rotation of the steering ring 32 can be realized by the unidirectional rotation of the self-locking motor 21 so as to shift gears. The self-locking motor 21 can prevent the steering ring 32 from rotating when gear shifting is not needed, so that the stability of the device is improved; of course, it is possible in practice to use a common motor 21 for the present arrangement, since the long-acting spring 313 itself can provide a force to some extent to place the turning ring 32 into rotation (after all turning to the turning of the ring 32 means that the long-acting spring 313 is compressed) under the action of the long-acting spring 313.
Further, the shift paddle 4 includes:
the claws 41;
a main rod 42 connected to the upper ends of the jaws 41;
a steering rod 43 coaxially connected to the upper end of the main rod 42;
a steering tube 44 rotatably sleeved on the steering rod 43;
the steering pipe 44 is connected to the inner rod 312, and the main rod 42 is slidably mounted in the case 1.
The steering ring 32 rotates to drive the sleeve 311 and the inner rod 312 to move and further drive the steering tube 44 to rotate, and the design that the steering tube 44 is sleeved on the steering rod 43 is mainly matched with the rotation of the steering ring 32. The diameter of the steering rod 43 is smaller than the diameter of the main rod 42.
Furthermore, the device also comprises two parallel supporting bars 11;
two ends of the supporting bar 11 are respectively connected with the inner wall of the box body 1;
grooves are respectively arranged on two sides of the main rod 42; the groove on the main rod 42 is in sliding fit with the supporting bar 11 on the same side; the support bar 11 is connected with a limiting block 12; the limited blocks 12 on the two support bars 11 are positioned at two sides of the main rod 42.
The stopper 12 is provided to limit the position of the main rod 42 sliding laterally and to prevent the claw 41 below the main rod from rubbing against other gears.
Further, the periphery of the steering ring 32 is provided with grooves which are communicated end to end; a plurality of fixing blocks 13 are arranged on the inner wall of the box body 1; one end of the fixing block 13 far away from the inner wall of the box body 1 is in sliding fit with the groove on the periphery of the steering ring 32.
The outer edge of one end of the fixing block 13, which is far away from the inner wall of the box body 1, is an arc-shaped outer edge matched with the groove of the outer ring of the steering circular ring 32, the arc-shaped outer edge is inserted into the groove of the steering circular ring 32, and the fixing block 13 is uniformly arranged around the steering circular ring 32 along the circumferential direction.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (7)
1. An electric variable speed transaxle shift structure, comprising:
a box body;
the driving mechanism is arranged on the box body;
the steering mechanism is arranged in the box body, is connected with the driving mechanism and is internally provided with an elastic component;
the gear shifting sheet is transversely and slidably arranged in the box body and is connected with the steering mechanism;
under the driving of the driving mechanism, the steering mechanism can push the gear shifting sheet to slide from one side of the gear shifting sheet through the elastic component in a reversing way.
2. The electric variable drive axle shifting structure according to claim 1, wherein the steering mechanism comprises:
the steering circular ring is rotatably arranged in the box body, and the end part of the gear shifting plectrum is positioned in the steering circular ring and is connected with the driving mechanism;
one end of the elastic component is connected with the inner wall of the steering circular ring, and the other end of the elastic component is rotationally connected with the end part of the gear shifting plectrum;
wherein, the drive mechanism drives the steering ring to rotate.
3. The electric variable speed drive axle shifting structure according to claim 2, wherein the elastic member comprises:
the sleeve is connected with the gear shifting plectrum;
one end of the inner rod is connected with the inner wall of the steering circular ring, and the other end of the inner rod is inserted into the sleeve in a sliding manner;
the long-acting spring is sleeved on the sleeve and the inner rod;
wherein, the both ends of long-term spring are supported against with the tip of shifting the plectrum and turning to the inner circle of ring respectively.
4. The electric variable speed drive axle shifting structure according to claim 3, wherein the steering ring is provided at an outer periphery thereof with a rack;
the drive mechanism includes:
the motor is arranged on the box body;
the driving gear is coaxially connected with a rotating shaft of the motor;
wherein, the driving gear is meshed with the rack outside the steering ring.
5. The electric variable speed drive axle shifting structure of claim 4, wherein the shift paddle includes:
a claw;
the main rod is connected with the upper ends of the clamping jaws;
the steering rod is coaxially connected with the upper end of the main rod;
the steering tube is sleeved on the steering rod in a rotating manner;
wherein, the steering tube is connected with the inner rod, and the main rod is arranged in the box body in a sliding way.
6. The electric variable transaxle shift structure of claim 5 further comprising two support bars parallel to each other;
two ends of the supporting bar are respectively connected with the inner wall of the box body;
grooves are respectively arranged on the two sides of the main rod; the groove on the main rod is in sliding fit with the supporting bar on the same side; the support bar is connected with a limiting block; the limiting blocks on the two supporting bars are positioned at the two sides of the main rod.
7. The electric variable speed drive axle shifting structure according to claim 6, wherein the outer periphery of the steering ring is provided with grooves which are communicated end to end; a plurality of fixed blocks are arranged on the inner wall of the box body; one end of the fixing block, which is far away from the inner wall of the box body, is in sliding fit with the groove at the periphery of the steering ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951120.6U CN217804328U (en) | 2022-07-27 | 2022-07-27 | Electric variable-speed drive axle gear shifting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221951120.6U CN217804328U (en) | 2022-07-27 | 2022-07-27 | Electric variable-speed drive axle gear shifting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217804328U true CN217804328U (en) | 2022-11-15 |
Family
ID=83971185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221951120.6U Active CN217804328U (en) | 2022-07-27 | 2022-07-27 | Electric variable-speed drive axle gear shifting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217804328U (en) |
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2022
- 2022-07-27 CN CN202221951120.6U patent/CN217804328U/en active Active
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