CN217633771U - Power takeoff output structure, transmission and new energy vehicle - Google Patents
Power takeoff output structure, transmission and new energy vehicle Download PDFInfo
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- CN217633771U CN217633771U CN202221477769.9U CN202221477769U CN217633771U CN 217633771 U CN217633771 U CN 217633771U CN 202221477769 U CN202221477769 U CN 202221477769U CN 217633771 U CN217633771 U CN 217633771U
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Abstract
The utility model belongs to the technical field of transmission, especially, relate to a power takeoff output structure, derailleur and new forms of energy car. The utility model discloses a power takeoff output structure comprises an input shaft assembly, which comprises an input shaft, an input gear, a first bearing and a second bearing, wherein one end of the input shaft is provided with a spline which is arranged along the axial direction of the input shaft; the power takeoff shaft assembly comprises a power takeoff shaft, a third bearing and a fourth bearing, wherein a shaft hole used for accommodating one end, provided with a spline, of the input shaft is formed in one end, facing the input shaft, of the power takeoff shaft, a key groove matched with the spline is formed in the inner wall of the shaft hole, and a first connecting structure used for being connected with the power takeoff is arranged at one end, far away from the input shaft, of the power takeoff; the main power shaft assembly comprises a main power shaft, an output gear and a synchronizer, wherein the output gear is meshed with the input gear, and the synchronizer and the main power shaft rotate synchronously. The utility model discloses simple structure, low in manufacturing cost.
Description
Technical Field
The utility model relates to a transmission technical field especially relates to a power takeoff output structure, derailleur and new forms of energy car.
Background
In recent years, with the gradual improvement of electric vehicle charging facilities and the increase of oil prices, the running cost advantage of the electric commercial vehicle is more obvious. Compared with a passenger vehicle, the commercial vehicle needs a power takeoff to be externally connected with other components for working, and a transmission with the power takeoff is needed in lifting operation, cleaning operation and the like. In this prior art, some power take-off structures are designed to output the power of the vehicle power plant to the power take-off. For example, patent No. CN216045344U discloses a structure for transmitting power of a power plant to a power takeoff, which uses a power takeoff gear on a main shaft to connect with a crank gear of the power plant to transmit power.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a power takeoff output structure, derailleur and new energy automobile are used in solving the higher technical problem of current power takeoff manufacturing cost.
The utility model adopts the technical proposal that:
in a first aspect, the utility model provides a power takeoff output structure, include:
the input shaft assembly comprises an input shaft, an input gear, a first bearing and a second bearing, wherein one end of the input shaft is provided with a spline, the first bearing and the second bearing are respectively positioned on two opposite sides of the input gear in the axial direction of the input shaft, the inner ring of the first bearing is connected with the input shaft, and the inner ring of the second bearing is connected with the input shaft;
the power takeoff shaft assembly comprises a power takeoff shaft, a third bearing and a fourth bearing, wherein a shaft hole used for accommodating one end, provided with a spline, of the input shaft is formed in one end, facing the input shaft, of the power takeoff shaft, a key groove matched with the spline is formed in the inner wall of the shaft hole, the inner ring of the third bearing is connected with the power takeoff shaft, the inner ring of the fourth bearing is connected with the power takeoff shaft, and a first connecting structure used for being connected with the power takeoff is arranged at one end, far away from the input shaft, of the power takeoff shaft;
the main power shaft assembly comprises a main power shaft, an output gear and a synchronizer, wherein the output gear is rotatably connected with the main power shaft, the output gear is meshed with the input gear, and the synchronizer and the main power shaft rotate synchronously.
Preferably, the third bearing is located at a position of the power take-off shaft where the end of the input shaft is accommodated, in the axial direction of the power take-off shaft.
Preferably, the power takeoff shaft includes a first shoulder against which the third bearing abuts and a second shoulder against which the fourth bearing abuts.
Preferably, the annular surface of the first shoulder abutting against the third bearing and the annular surface of the second shoulder abutting against the fourth bearing are opposite in orientation.
Preferably, the input shaft includes a third shoulder and a fourth shoulder, the first bearing abuts against the third shoulder, and the second bearing abuts against the third shoulder.
Preferably, the annular surface of the third shoulder abutting against the first bearing and the annular surface of the fourth shoulder abutting against the second bearing are opposite in direction.
Preferably, an annular groove recessed toward the peripheral wall of the shaft hole is provided between the key groove and the bottom wall of the shaft hole.
Preferably, the second output gear is disposed at an axial position corresponding to the first bearing.
Preferably, the first gear output gear is arranged on the first gear, and the second gear is arranged on the second gear.
Preferably, the first connecting structure is a spline at an end of the power take-off shaft facing away from the input shaft.
In a second aspect, the present invention provides a transmission, including the first aspect the power takeoff output structure and the box body, the first bearing, the second bearing, the third bearing and the fourth bearing are fixed respectively on the box body.
In a third aspect, the present invention provides a new energy vehicle, including the first aspect, the power takeoff output structure or the second aspect, the transmission.
Has the beneficial effects that: the utility model discloses a power takeoff output structure utilizes the input shaft subassembly to transmit power to the power takeoff axle, recycles the power takeoff axle and transmits power for the power takeoff. The power takeoff shaft and the input shaft are connected through the spline for transmission, the structure is simpler, and the manufacturing cost is low. And the embodiment utilizes the original input shaft assembly in the transmission, and realizes the power output to the power takeoff under the condition of additionally adding other parts. In addition, the transmission path is switched by the synchronizer arranged on the main power shaft, so that power can be transmitted to wheels when the vehicle runs, and power cannot be transmitted to the vehicle when the vehicle is in a stop state, and the power can be conveniently transmitted to the power takeoff through the power takeoff shaft assembly when the vehicle stops.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings, and these drawings are all within the protection scope of the present invention.
Fig. 1 is a schematic three-dimensional structure diagram of the power takeoff output structure of the present invention;
fig. 2 is a sectional view of the power takeoff output structure of the present invention;
FIG. 3 is a three-dimensional structure diagram of the power take-off shaft of the present invention;
fig. 4 is a cross-sectional view of the power take-off shaft of the present invention.
Parts and numbers in the drawings:
the power take-off device comprises a power take-off device 40, an input shaft assembly 10, an input shaft 11, an input gear 12, a first bearing 13, a second bearing 14, a third shoulder 15, a fourth shoulder 16, a power take-off shaft assembly 20, a power take-off device 40, a first shoulder 211, a second shoulder 212, an annular groove 213, a third bearing 22, a fourth bearing 23, a shaft hole 24, a key groove 25, a first connecting structure 26, a main power shaft assembly 30, a main power shaft 31, an output gear 32 and a synchronizer 33.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments of the present invention. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. In case of conflict, various features of the embodiments and examples of the present invention may be combined with each other and are within the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a power take-off output structure comprising an input shaft assembly 10, a power take-off shaft assembly 20, and a main power shaft assembly 30.
The input shaft assembly 10 comprises an input shaft 11, an input gear 12, a first bearing 13 and a second bearing 14, wherein one end of the input shaft 11 is provided with a spline, the first bearing 13 and the second bearing 14 are respectively positioned on two opposite sides of the input gear 12 in the axial direction of the input shaft 11, the inner ring of the first bearing 13 is connected with the input shaft 11, and the inner ring of the second bearing 14 is connected with the input shaft 11. Wherein the outer race of the first bearing 13 is mounted on the transmission case and the outer race of the second bearing 14 is mounted on the transmission case. In the present embodiment, a first bearing 13 and a second bearing 14 mounted on a transmission case are respectively provided at both ends of the input shaft 11 to support the input shaft 11, so that the input shaft 11 can stably rotate relative to the case. Wherein the input gear 12 may be fixedly connected to the input shaft 11 such that the input gear 12 may rotate synchronously with the input shaft 11. In this embodiment, the power of the power device, such as an electric motor, can be directly transmitted to the input shaft 11, and for this embodiment, a connecting structure, such as a spline, for connecting with the output end of the power device can be provided at the end of the input shaft 11 far from the power take-off shaft 21.
In the present embodiment, the power take-off shaft assembly 20 includes a power take-off shaft 21, a third bearing 22 and a fourth bearing 23, as shown in fig. 2 and 4, the power take-off shaft 21 is provided with a shaft hole 24 towards one end of the input shaft 11 for receiving one end of the input shaft 11 with splines, the inner wall of the shaft hole 24 is provided with a key slot 25 matched with the splines, the inner ring of the third bearing 22 is connected with the power take-off shaft 21, the inner ring of the fourth bearing 23 is connected with the power take-off shaft 21, and one end of the power take-off 40 away from the input shaft 11 is provided with a connecting structure for connecting with a power take-off 40;
wherein the outer ring of the third bearing 22 is mounted on the transmission case and the outer ring of the fourth bearing 23 is mounted on the transmission case. In the present embodiment, a third bearing 22 and a fourth bearing 23, which can be mounted on the transmission case, are respectively provided at both ends of the power take-off shaft 21 to support the power take-off shaft 21 so that the power take-off shaft 21 can stably rotate relative to the case. In this embodiment, one end of the input shaft 11 is inserted into the shaft hole 24 of the power take-off shaft 21, and the spline provided on the input shaft 11 and the key groove 25 provided on the inner wall of the shaft hole 24 of the power take-off shaft 21 are used to form a reliable connection between the input shaft 11 and the power take-off shaft 21, so that when the input shaft 11 rotates, the power take-off shaft 21 can be driven to rotate synchronously through the cooperation of the spline and the key groove 25, thereby simply and reliably transmitting the power of the input shaft 11 to the power take-off shaft 21. Since the connection point of the input shaft 11 and the power take-off shaft 21 is located inside the power take-off shaft 21, the connection point is less susceptible to external interference, and the power transmission process between the input shaft 11 and the power take-off shaft 21 is more reliable.
In the present embodiment, the main power shaft assembly 30 includes a main power shaft 31, an output gear 32 and a synchronizer 33, the output gear 32 is rotatably connected to the main power shaft 31, the output gear 32 is engaged with the input gear 12, and the synchronizer 33 rotates synchronously with the main power shaft 31. Wherein the synchronizer 33 may be fixedly connected with the main power shaft 31. Wherein the output gear 32 may be rotatably connected to the main power shaft 31 by a bearing, which is referred to herein as a fifth bearing for convenience of description. Wherein the inner ring of the second bearing 14 is fixedly connected with the main power shaft 31, and the outer ring is fixedly connected with the output gear 32. Wherein, the output gear 32 and the input gear 12 can adopt helical gears, which can improve the bearing capacity of the input gear 12 and the output gear 32.
Since the output gear 32 is engaged with the input gear 12, the input gear 12 can rotate the output gear 32. Since the output gear 32 is rotatably coupled to the main power shaft 31, when the synchronizer 33 is not coupled to the output gear 32, the output gear 32 idles with respect to the main power shaft 31, and the power of the input shaft 11 cannot be transmitted to the main power shaft 31. Because the synchronizer 33 and the main power shaft 31 rotate synchronously, after the synchronizer 33 is combined with the output gear 32, the output gear 32 can drive the main power shaft 31 to rotate synchronously, so that the power of the input shaft 11 is transmitted to the main power shaft 31, and the main power shaft 31 transmits the power to the wheels of the vehicle, so that the vehicle is driven to run.
The working process of the output structure of the power take-off device 40 in the embodiment is as follows: the power of the vehicle power unit is transmitted to the input shaft 11 through the second connection structure, thereby driving the input shaft 11 to rotate, and the input shaft 11 driving the input gear 12 to rotate synchronously. The synchronizer 33 is engaged with the output gear 32 when the vehicle is in the form state. Since the input gear 12 is engaged with the output gear 32, the input gear 12 can drive the output gear 32 to rotate, and since the synchronizer 33 is coupled with the output gear 32 on one hand and rotates synchronously with the main power shaft 31 on the other hand, the output gear 32 can drive the main power shaft 31 to rotate through the synchronizer 33, thereby finally transmitting power to the wheels. When the vehicle is in a parking state, the synchronizer 33 is disengaged from the output gear 32, and the power of the vehicle power device can still be transmitted to the input shaft 11 through the second connecting structure, so that the input shaft 11 is driven to rotate, and the input shaft 11 drives the input gear 12 to synchronously rotate and simultaneously drives the power takeoff shaft 21 connected with the input shaft to rotate. The external power take-off 40 thus receives power from the rotating power take-off shaft 21. On the other hand, although the input gear 12 rotates the output gear 32 engaged therewith, since the synchronizer 33 is not coupled to the output gear 32, the output gear 32 can only idle with respect to the main power shaft 31 and cannot transmit power to the main power shaft 31, so that power of the power plant can only be transmitted to the power take-off 40.
In the present embodiment, as a preferable mode thereof, the third bearing 22 is located at a position of the power take-off shaft 21 where the end of the input shaft 11 is accommodated, in the axial direction of the power take-off shaft 21. In the embodiment, the third bearing 22 is arranged at the position of the end part of the power take-off shaft 21, which accommodates the input shaft 11, and the position is near the position where the input shaft 11 and the power take-off shaft 21 are connected and driven, so that the third bearing 22 can effectively support the position, and the connection and driving reliability of the input shaft 11 and the power take-off shaft 21 is further improved.
Furthermore, in the present embodiment, the power take-off shaft 21 includes a first shoulder 211 and a second shoulder 212, the third bearing 22 abuts against the first shoulder 211, and the fourth bearing 23 abuts against the second shoulder 212. In the present embodiment, the first shoulder 211 and the second shoulder 212 are respectively disposed at positions close to both ends of the power take-off shaft 21, and the third bearing 22 and the fourth bearing 23 are respectively abutted against the first shoulder 211 and the second shoulder 212. With the above-described structure, the power take-off shaft 21 can be supported by the third bearing 22 and the fourth bearing 23 while the power take-off shaft 21 can be axially positioned.
As shown in fig. 1 and 3, in this embodiment, the annular surface of the first shoulder 211 abutting against the third bearing 22 and the annular surface of the second shoulder 212 abutting against the fourth bearing 23 are in opposite directions. In the manner described above, the annular surfaces of the two shoulders can be used to fix the power take-off shaft 21 in position between the two bearings, so that the axial position of the power take-off shaft 21 is more precise. In practical implementation, the inner ring of the third bearing 22 and the inner ring of the fourth bearing 23 respectively abut against the annular surface of the first shoulder 211 and the annular surface of the second shoulder 212.
In the present embodiment, the input shaft 11 includes a third shoulder 15 and a fourth shoulder 16, the first bearing 13 abuts against the third shoulder 15, and the second bearing 14 abuts against the third shoulder 15.
In the present embodiment, a third shoulder 15 and a fourth shoulder are respectively disposed at positions close to both ends of the input shaft 11, and the first bearing 13 and the second bearing 14 are respectively abutted against the third shoulder 15 and the fourth shoulder 16. With the above-described structure, the input shaft 11 can be supported by the first bearing 13 and the second bearing 14 while the input shaft 11 can be axially positioned.
In this embodiment, the annular surface of the third shoulder 15 abutting against the first bearing 13 and the annular surface of the fourth shoulder 16 abutting against the second bearing 14 are oriented in opposite directions.
In the manner described above, the annular surfaces of the two shoulders can be used to fix the input shaft 11 in position between the two bearings, thereby making the axial position of the input shaft 11 more accurate. In practical implementation, the inner ring of the first bearing 13 and the inner ring of the second bearing 14 respectively abut against the annular surface of the third shoulder 15 and the annular surface of the fourth shoulder 16.
As shown in fig. 4, in the present embodiment, an annular groove 213 recessed toward the peripheral wall of the shaft hole 24 is provided between the key groove 25 and the bottom wall of the shaft hole 24. By adopting the structure, the processed cutter can be deeply inserted into the bottom of the shaft hole 24, so that the key groove 25 can be conveniently processed on the peripheral wall of the shaft hole 24.
In the present exemplary embodiment, the first connecting structure 26 is a spline at the end of the power take-off shaft 21 facing away from the input shaft 11. The spline is arranged at the output end of the power takeoff shaft 21, the structure is simple, convenience is achieved, and the power takeoff shaft 21 is connected with the power takeoff 40.
Wherein the power take-off 40 may comprise a first shaft and a second shaft, said first shaft and said power take-off shaft 21 being splined, said first shaft being provided with a first gear and said second shaft being provided with a second gear. Wherein the power take-off 40 further comprises a drive means for driving the second shaft in movement. When the vehicle is in a stop state, the second gear can be driven by the driving device to move along with the second shaft to a position meshed with the first gear, and power can be output from the second shaft. When the vehicle is in a stop state, the second gear can be driven by the driving device to move along with the second shaft to a position separated from the first gear, and power cannot be output from the second shaft.
The power device can adopt a pneumatic driving device, the driving device comprises an air cylinder and a pneumatic pump, the air cylinder is connected with the pneumatic pump, the pneumatic pump leads compressed air into the air cylinder, the compressed air pushes a piston rod in the air cylinder to move, and the piston rod is connected with the second output shaft so as to push the second output shaft to move.
Example 2
The present embodiment provides a transmission including the output structure of the power take-off 40 described in embodiment 1 and a case to which the first bearing 13, the second bearing 14, the third bearing 22, and the fourth bearing 23 are fixed, respectively.
Example 3
The present embodiment provides a new energy vehicle including the power take-off 40 output structure described in embodiment 1 or the transmission described in embodiment 2.
As described above, only the specific embodiments of the present invention are provided, and those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working processes of the system, the module and the unit described above can refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered by the scope of the present invention.
Claims (10)
1. Power takeoff output structure, its characterized in that includes:
the input shaft assembly comprises an input shaft, an input gear, a first bearing and a second bearing, wherein one end of the input shaft is provided with a spline, the first bearing and the second bearing are respectively positioned at two opposite sides of the input gear in the axial direction of the input shaft, the inner ring of the first bearing is connected with the input shaft, and the inner ring of the second bearing is connected with the input shaft;
the power takeoff shaft assembly comprises a power takeoff shaft, a third bearing and a fourth bearing, wherein a shaft hole used for accommodating one end, provided with a spline, of the input shaft is formed in one end, facing the input shaft, of the power takeoff shaft, a key groove matched with the spline is formed in the inner wall of the shaft hole, the inner ring of the third bearing is connected with the power takeoff shaft, the inner ring of the fourth bearing is connected with the power takeoff shaft, and a first connecting structure used for being connected with the power takeoff is arranged at one end, far away from the input shaft, of the power takeoff shaft;
the main power shaft assembly comprises a main power shaft, an output gear and a synchronizer, wherein the output gear is rotatably connected with the main power shaft, the output gear is meshed with the input gear, and the synchronizer and the main power shaft rotate synchronously.
2. The power take-off output arrangement as claimed in claim 1, wherein said third bearing is located at a position of the power take-off shaft that accommodates the end of the input shaft in the axial direction of the power take-off shaft.
3. The power takeoff output arrangement as claimed in claim 1, wherein said power takeoff shaft includes a first shoulder and a second shoulder, said third bearing abutting said first shoulder and said fourth bearing abutting said second shoulder.
4. The power takeoff output arrangement as claimed in claim 3, wherein the annular surface of said first shoulder against which said third bearing abuts is oppositely oriented to the annular surface of said second shoulder against which said fourth bearing abuts.
5. The power takeoff output arrangement as claimed in claim 4, wherein said input shaft includes a third shoulder against which said first bearing abuts and a fourth shoulder against which said second bearing abuts.
6. The power takeoff output arrangement as claimed in claim 5, wherein the annular surface of said third shoulder against which said first bearing abuts is oppositely oriented to the annular surface of said fourth shoulder against which said second bearing abuts.
7. The power takeoff output structure as claimed in claim 1, wherein an annular groove recessed in a direction of a peripheral wall of the shaft hole is provided between said key groove and a bottom wall of said shaft hole.
8. The power take-off output arrangement as claimed in any one of claims 1 to 7, wherein the first connection is a spline at the end of the power take-off shaft facing away from the input shaft.
9. A transmission comprising the power take-off output structure of any one of claims 1 to 8 and a case, said first bearing, second bearing, third bearing and fourth bearing being fixed to said case, respectively.
10. The new energy vehicle, characterized by comprising the power take-off output structure of any one of claims 1 to 8 or the transmission of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221477769.9U CN217633771U (en) | 2022-06-14 | 2022-06-14 | Power takeoff output structure, transmission and new energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221477769.9U CN217633771U (en) | 2022-06-14 | 2022-06-14 | Power takeoff output structure, transmission and new energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633771U true CN217633771U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221477769.9U Active CN217633771U (en) | 2022-06-14 | 2022-06-14 | Power takeoff output structure, transmission and new energy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633771U (en) |
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2022
- 2022-06-14 CN CN202221477769.9U patent/CN217633771U/en active Active
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| GR01 | Patent grant | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Power take-off output structure, transmission, and new energy vehicles Granted publication date: 20221021 Pledgee: Fumin Sub branch of Bank of Shanghai Co.,Ltd. Pledgor: Jiangsu Yuchuan New Energy Technology Co.,Ltd. Registration number: Y2024980040791 |