CN214465915U - Drive axle and vehicle with same - Google Patents
Drive axle and vehicle with same Download PDFInfo
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- CN214465915U CN214465915U CN202120204588.8U CN202120204588U CN214465915U CN 214465915 U CN214465915 U CN 214465915U CN 202120204588 U CN202120204588 U CN 202120204588U CN 214465915 U CN214465915 U CN 214465915U
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- differential
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Abstract
The utility model discloses a transaxle and vehicle that has it, the transaxle includes: a driving gear; a driven gear engaged with the drive gear; a differential to which are connected a first half-shaft and a second half-shaft; the gear sleeve is movable between a combination position and a separation position, the gear sleeve is meshed with the driven gear and the differential mechanism when in the combination position, and the gear sleeve is meshed with one of the driven gear and the differential mechanism and separated from the other when in the separation position. According to the utility model discloses transaxle can interrupt power transmission, has that the lubricating oil loss is low, advantage such as power loss is little.
Description
Technical Field
The utility model belongs to the technical field of the automotive transmission technique and specifically relates to a transaxle and vehicle that has it are related to.
Background
The drive axle of the vehicle in the related art is used for transmitting the power of an engine to the drive wheels of the vehicle to generate driving force, and mainly comprises a driving gear, a driven gear and a differential mechanism, wherein the differential mechanism is fixedly connected with the driven gear to realize the synchronous rotation of the differential mechanism and the driven gear, and the power is transmitted between the differential mechanism and the driven gear.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide a drive axle, which can interrupt power transmission and has the advantages of low lubricant loss, low power loss, etc.
The utility model also provides a vehicle of having above-mentioned transaxle.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a drive axle, including: a driving gear; a driven gear engaged with the drive gear; a differential to which are connected a first half-shaft and a second half-shaft; the gear sleeve is movable between a combination position and a separation position, the gear sleeve is meshed with the driven gear and the differential mechanism when in the combination position, and the gear sleeve is meshed with one of the driven gear and the differential mechanism and separated from the other when in the separation position.
According to the utility model discloses transaxle can interrupt power transmission, has that the lubricating oil loss is low, advantage such as power loss is little.
According to some embodiments of the invention, the differential comprises: a housing, the gear sleeve in the engaged position meshing with both the driven gear and the housing, the gear sleeve in the disengaged position meshing with the housing and disengaged from the driven gear.
According to some embodiments of the invention, an end surface of the toothed sleeve facing the driven gear has first teeth, and an end surface of the driven gear facing the toothed sleeve has second teeth; wherein the first and second teeth mesh when the gear sleeve is in the engaged position; when the gear sleeve is located at the separation position, the first tooth and the second tooth are separated.
According to some embodiments of the invention, the outer peripheral surface of the housing has third teeth, and the inner peripheral surface of the gear sleeve has fourth teeth, the third teeth and the fourth teeth meshing with each other.
According to some embodiments of the invention, the housing comprises: the first shell and the second shell are mounted with each other, the driven gear is sleeved on the second shell, and a first bearing is arranged between the driven gear and the second shell; the gear sleeve is meshed with the driven gear and the first shell when in the combination position, and is meshed with the first shell and separated from the driven gear when in the separation position.
According to some embodiments of the present invention, the differential further comprises; the cross shaft is in transmission connection with the shell; the planetary gear is in transmission connection with the cross shaft; the first half shaft gear is in transmission connection with the first half shaft and meshed with the planetary gear; a second side gear in driving connection with the second axle shaft and in meshing engagement with the planetary gear.
According to some embodiments of the present invention, the drive axle further comprises: and the shifting fork is fixed on the differential mechanism, and the gear sleeve is stopped by the shifting fork when being positioned at the separation position.
According to some embodiments of the utility model, the outer peripheral face of tooth cover is equipped with the draw-in groove, the tooth cover is located during the isolated position the shift fork backstop in the draw-in groove.
According to some embodiments of the utility model, keeping away from of differential mechanism the outer peripheral face of driven gear's one end is equipped with the second bearing, keeping away from of driven gear the outer peripheral face of differential mechanism's one end is equipped with the third bearing.
According to a second aspect of the present invention, there is provided a vehicle, including a drive axle according to the second aspect of the present invention.
According to the utility model discloses a vehicle of second aspect embodiment, through utilizing according to the utility model discloses a second aspect embodiment the transaxle, it is low to have the lubricating oil loss, advantage such as power loss is little.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a cross-sectional view of a drive axle according to an embodiment of the present invention.
Reference numerals:
a drive axle 1,
A driving gear 100,
A driven gear 200, a second tooth 210,
Differential 300, housing 310, first housing 311, second housing 312, third teeth 313, cross 320, row
A star gear 330, a first side gear 340, a second side gear 350,
A first half shaft 500, a second half shaft 510,
First bearing 600, second bearing 610, third bearing 620, first step 630, second step 640, third step 650.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, 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", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
In the description of the present invention, "a plurality" means two or more, and "a plurality" means one or more.
The transaxle 1 according to an embodiment of the present invention is described below with reference to the drawings.
As shown in fig. 1, the transaxle 1 includes a driving gear 100, a driven gear 200, a differential 300, and a gear sleeve 400.
The driven gear 200 is engaged with the drive gear 100, the differential 300 has a first axle shaft 500 and a second axle shaft 510 connected thereto, the sleeve gear 400 is movable between an engaged position in which the sleeve gear 400 is engaged with both the driven gear 200 and the differential 300, and a disengaged position in which the sleeve gear 400 is engaged with one of the driven gear 200 and the differential 300 and disengaged from the other.
According to the utility model discloses transaxle 1, driven gear 200 meshes with driving gear 100, differential mechanism 300 is connected with first semi-axis 500 and second semi-axis 510, driving gear 100 transmits the power of engine to driven gear 200, driven gear 200 carries first semi-axis 500 and second semi-axis 510 with power by differential mechanism 300 to first semi-axis 500 and second semi-axis 510 can drive the driving wheel rotation of vehicle, and when the vehicle was turned, first semi-axis 500 and second semi-axis 510 rotated with different rotational speeds, in order to realize the normal operating of vehicle.
In addition, the sleeve gear 400 is movable between an engaged position, in which the sleeve gear 400 is engaged with both the driven gear 200 and the differential 300, and a disengaged position, in which the sleeve gear 400 is engaged with one of the driven gear 200 and the differential 300 and disengaged from the other. In other words, when the sleeve gear 400 is located at the coupling position, power transmission between the driven gear 200 and the differential 300 can be performed through the sleeve gear 400; when the sleeve gear 400 is located at the disengaged position, the power transmission between the driven gear 200 and the differential 300 is interrupted.
The position of the gear sleeve 400 can be adjusted according to the driving state of the vehicle, for example, when the vehicle needs power driving, the gear sleeve 400 is located at the combination position, the driving gear 100 inputs power, and the driven gear 200 and the differential 300 normally transmit power; when the vehicle is in a sliding state, the gear sleeve 400 is located at the separation position, the wheel drives the differential 300 to rotate, one of the driven gear 200 and the differential 300 and the gear sleeve 400 are disengaged, namely, power transmission is not performed between the driven gear 200 and the differential 300, and at the moment, the driven gear 200 does not rotate along with the rotation of the wheel, so that the driven gear 200 does not stir lubricating oil, the loss of the lubricating oil can be reduced, and the power loss of the whole drive axle 1 is reduced.
Therefore, according to the utility model discloses transaxle 1 can interrupt power transmission, has that the lubricating oil loss is low, advantage such as power loss is little.
According to some embodiments of the present invention, as shown in fig. 1, the differential 300 includes a housing 310, a sleeve gear 400 is engaged with both the driven gear 200 and the housing 310 in the engaged position, and the sleeve gear 400 is engaged with the housing 310 and disengaged from the driven gear 200 in the disengaged position. Through setting up casing 310, can not only realize the power transmission between differential 300 and the tooth cover 400, power transmission stability is high between differential 300 and the tooth cover 400, can shelter from the other parts of differential 300 moreover, reduces the damage probability of differential 300, prolongs the life-span of differential 300.
According to some embodiments of the present invention, as shown in fig. 1, the end surface of the gear sleeve 400 facing the driven gear 200 has a first tooth 410, and the end surface of the driven gear 200 facing the gear sleeve 400 has a second tooth 210. Wherein when the gear sleeve 400 is in the engaged position, the first tooth 410 and the second tooth 210 are engaged, and when the gear sleeve 400 is in the disengaged position, the first tooth 410 and the second tooth 210 are disengaged.
It is understood that when the first teeth 410 and the second teeth 210 are engaged, power transmission between the driven gear 200 and the differential 300 may be performed through the gear sleeve 400. Here, the first tooth 410 may extend from an end surface of the gear housing 400 facing the driven gear 200 in a direction away from the gear housing 400, and the second tooth 210 may extend from an end surface of the driven gear 200 facing the gear housing 400 in a direction away from the driven gear 200.
Through first tooth 410 and second tooth 210, be convenient for realize that toothed sleeve 400 and driven gear 200 switch at power transmission and power interrupt two kinds of states, reduce transaxle 1 whole power loss, and the simple structure of toothed sleeve 400 and driven gear 200 facilitates the production of toothed sleeve 400 and driven gear 200.
According to some embodiments of the present invention, as shown in fig. 1, the outer circumferential surface of the housing 310 has third teeth 313, the inner circumferential surface of the gear sleeve 400 has fourth teeth 420, and the third teeth 313 and the fourth teeth 420 are engaged. The outer peripheral surface of the housing 310 refers to a surface of the housing 310 facing the gear sleeve 400, the inner peripheral surface of the gear sleeve 400 refers to a surface of the gear sleeve 400 facing the housing 310, and the third teeth 313 and the fourth teeth 420 are continuously meshed. This ensures synchronous rotation between the sleeve gear 400 and the differential gear 300, i.e., ensures power transmission of the entire transaxle 1.
According to some embodiments of the present invention, as shown in fig. 1, the housing 310 includes a first housing 311 and a second housing 312, the first housing 311 and the second housing 312 are mounted to each other, for example, the first housing 311 and the second housing 312 are mounted together by bolts, and the driven gear 200 is sleeved on the second housing 312. Wherein the sleeve gear 400 is engaged with both the driven gear 200 and the first housing 311 when in the coupling position, and the sleeve gear 400 is engaged with the first housing 311 and is separated from the driven gear 200 when in the separating position.
In this way, the first housing 311 and the second housing 312 rotate synchronously, and the differential 300 can be fixedly mounted with the driven gear 200 and can be switched between two states of power transmission and transmission interruption with the driven gear 200.
Further, a first bearing 600 is provided between the driven gear 200 and the second housing 312.
For example, the first bearing 600 may be a combination bearing, i.e., the first bearing 600 may include a plurality of bearings. The first bearing 600 is sleeved on the second housing 312, the outer peripheral surface of the second housing 312 is provided with a first step 630, the first step 630 stops the first bearing 600 from moving towards the first housing 311 along the axial direction of the second housing 312, and a positioning effect can be achieved on the first bearing 600, so that the mounting accuracy between the first bearing 600 and the second housing 312 is higher.
The driven gear 200 is sleeved on the first bearing 600, the inner circumferential surface of the driven gear 200 is provided with a groove, and the first bearing 600 is positioned in the groove, so that the first bearing 600 can be positioned, and the mounting precision between the first bearing 600 and the driven gear 200 is higher.
Through first bearing 600, not only can the position between driven gear 200 and second casing 312 be fixed to reduce the frictional resistance when relative rotation between second casing 312 and driven gear 200, thereby reduce driven gear 200 and the wearing and tearing of second casing 312, prolong driven gear 200 and differential mechanism 300's life, can also improve transaxle 1 holistic transmission efficiency.
According to some embodiments of the present invention, as shown in fig. 1, the differential 300 further includes a spider 320, a planet gear 330, a first side gear 340, and a second side gear 350.
By arranging the differential 300 in a split manner, the first half shaft gear 340 and the second half shaft gear 350 are respectively in transmission connection with the planetary gear 330, so that differential rotation of the first half shaft 500 and the second half shaft 510 is facilitated, and integral power transmission of the drive axle 1 is facilitated.
According to some embodiments of the present invention, the driving axle 1 further includes a shifting fork (not shown), the shifting fork is fixed to the differential 300, and the gear sleeve 400 is stopped by the shifting fork when located at the above-mentioned separated position.
For example, it may be mounted on an end of the first housing 311 remote from the driven gear 200 with the fork extending toward the gear sleeve 400. Like this the shift fork can be used for backstop facing 400, when avoiding facing 400 to the detached position by the hookup location when moving, facing 400 moves excessively and breaks away from first casing 311, has limited the axial displacement space of facing 400 jointly through shift fork and driven gear 200, has improved and has meshed more stably between facing 400 and the first casing 311.
Further, a clamping groove (not shown) is formed in the outer peripheral surface of the gear sleeve 400, and the shifting fork is stopped by the clamping groove when the gear sleeve 400 is located at the separation position.
For example, the locking groove may be disposed on an end surface of the gear sleeve 400 facing away from the driven gear 200 and recessed toward the driven gear 200; alternatively, the catching groove may be provided on the outer circumferential surface of the sleeve gear 400. The catching groove extends in the axial direction of the gear sleeve 400. Through the setting of draw-in groove, increased the reliability that the shift fork was backstop to tooth cover 400, for example, when tooth cover 400 was located the isolated position, the part of shift fork stretched into the draw-in groove, and the shift fork is difficult for tooth cover 400 to take place relative slip this moment, and the relative position between shift fork and the tooth cover 400 is more stable promptly.
According to some embodiments of the present invention, as shown in fig. 1, the outer peripheral surface of the end of the differential 300 away from the driven gear 200 is provided with a second bearing 610, and the outer peripheral surface of the end of the driven gear 200 away from the differential 300 is provided with a third bearing 620. Therefore, the supporting force of the differential 300 and the driven gear 200 can be increased, the differential 300 and the driven gear 200 can be stably installed, the rotation friction coefficient of the differential 300 and the driven gear 200 can be further reduced, the abrasion of the differential 300 and the driven gear 200 is reduced, the power transmission loss of the differential 300 and the driven gear 200 is reduced, and the transmission performance of the whole vehicle is further improved.
For example, the end of the differential 300 away from the driven gear 200 is configured with a second step 640, the second step 640 is located on the side of the second bearing 610 facing the driven gear 200, the second step 640 may be used to stop the second bearing 610 from moving in the axial direction of the differential 300 toward the driven gear 200, and a positioning effect may be achieved on the second bearing 610 to make the mounting accuracy between the second bearing 610 and the differential 300 higher.
The end of the driven gear 200 remote from the differential 300 is configured with a third step 650, the third step 650 is located on the side of the third bearing 620 facing the differential 300, the third step 650 may be used to stop the third bearing 620 from moving toward the differential 300 in the axial direction of the driven gear 200, and may perform a positioning action on the third bearing 620 to make the mounting accuracy between the third bearing 620 and the driven gear 200 higher.
A vehicle according to an embodiment of the present invention is described below with reference to the drawings, the vehicle including the transaxle 1 according to the above-described embodiment of the present invention.
According to the utility model discloses vehicle, through utilizing according to the utility model discloses drive axle 1 of above-mentioned embodiment has that the lubricating oil loss is low, advantage such as loss of power is little.
Other configurations and operations of the transaxle 1 and the vehicle having the same according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A drive axle, comprising:
a driving gear;
a driven gear engaged with the drive gear;
a differential to which are connected a first half-shaft and a second half-shaft;
the gear sleeve is movable between a combination position and a separation position, the gear sleeve is meshed with the driven gear and the differential mechanism when in the combination position, and the gear sleeve is meshed with one of the driven gear and the differential mechanism and separated from the other when in the separation position.
2. The drive axle of claim 1, wherein the differential comprises:
a housing, the gear sleeve in the engaged position meshing with both the driven gear and the housing, the gear sleeve in the disengaged position meshing with the housing and disengaged from the driven gear.
3. The drive axle according to claim 2, characterized in that an end face of the gear sleeve facing the driven gear has first teeth and an end face of the driven gear facing the gear sleeve has second teeth;
wherein the first and second teeth mesh when the gear sleeve is in the engaged position;
when the gear sleeve is located at the separation position, the first tooth and the second tooth are separated.
4. The transaxle of claim 2 wherein the housing has third teeth on an outer peripheral surface thereof and the gear sleeve has fourth teeth on an inner peripheral surface thereof, the third teeth and the fourth teeth being in mesh.
5. The transaxle of claim 2 wherein the housing comprises:
the first shell and the second shell are mounted with each other, the driven gear is sleeved on the second shell, and a first bearing is arranged between the driven gear and the second shell;
the gear sleeve is meshed with the driven gear and the first shell when in the combination position, and is meshed with the first shell and separated from the driven gear when in the separation position.
6. The drive axle of claim 2 wherein the differential further comprises;
the cross shaft is in transmission connection with the shell;
the planetary gear is in transmission connection with the cross shaft;
the first half shaft gear is in transmission connection with the first half shaft and meshed with the planetary gear;
a second side gear in driving connection with the second axle shaft and in meshing engagement with the planetary gear.
7. The transaxle of any one of claims 1-6 further comprising:
and the shifting fork is fixed on the differential mechanism, and the gear sleeve is stopped by the shifting fork when being positioned at the separation position.
8. The drive axle according to claim 7, wherein a slot is formed on an outer circumferential surface of the gear sleeve, and the shift fork is stopped by the slot when the gear sleeve is located at the separation position.
9. The drive axle according to any one of claims 1 to 6, wherein the outer peripheral surface of the end of the differential remote from the driven gear is provided with a second bearing, and the outer peripheral surface of the end of the driven gear remote from the differential is provided with a third bearing.
10. A vehicle, characterized in that it comprises a drive axle according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120204588.8U CN214465915U (en) | 2021-01-25 | 2021-01-25 | Drive axle and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120204588.8U CN214465915U (en) | 2021-01-25 | 2021-01-25 | Drive axle and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465915U true CN214465915U (en) | 2021-10-22 |
Family
ID=78113669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120204588.8U Active CN214465915U (en) | 2021-01-25 | 2021-01-25 | Drive axle and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214465915U (en) |
-
2021
- 2021-01-25 CN CN202120204588.8U patent/CN214465915U/en active Active
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