CN218408220U - Transmission assembly and vehicle - Google Patents
Transmission assembly and vehicle Download PDFInfo
- Publication number
- CN218408220U CN218408220U CN202222467483.9U CN202222467483U CN218408220U CN 218408220 U CN218408220 U CN 218408220U CN 202222467483 U CN202222467483 U CN 202222467483U CN 218408220 U CN218408220 U CN 218408220U
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- transmission shaft
- universal joint
- steel pipe
- transmission
- shaft
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Abstract
The utility model discloses a transmission assembly and vehicle, transmission assembly includes transmission shaft, first universal joint, second universal joint, steel pipe and elastic support spare, the first end of transmission shaft and the axial slidable along the transmission shaft are located to first universal joint cover, the second end of transmission shaft is located to second universal joint cover, the first end fixed connection of steel pipe is in first universal joint, the second universal joint is located to the second end slidable cover of steel pipe, the transmission shaft is located to the elastic support spare cover, elastic support spare's outer peripheral face offsets with the internal face of steel pipe. The utility model discloses a drive assembly utilizes the steel pipe to undertake the radial force of transmission shaft when making the transmission shaft realize moment of torsion transfer function under the condition that does not change the appearance and the mounting means of transmission shaft among the prior art, makes long distance drive's transmission shaft have better elastic torsion characteristic in order to play moment of torsion buffer function, reduces the interior moment of torsion of holding back of vehicle when rugged road surface goes, reduces the transmission system load, reduces tire wear.
Description
Technical Field
The utility model belongs to the technical field of mechanical transmission, especially, relate to a transmission assembly and vehicle.
Background
In the prior art, most of the vehicles adapt to the rotating speed difference through tire slip, so that the transmission system is often operated in extreme load, even when the vehicles stop, the internal load of the transmission system still exists, the service life of the transmission system is low, the abrasion of tires is serious, the production is influenced frequently by faults, and the potential safety hazard of operation exists.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a transmission assembly, this transmission assembly is under the appearance of transmission shaft and the condition of mounting means among the not change prior art, utilize the steel pipe to undertake the radial force of transmission shaft when making the transmission shaft realize the moment of torsion transmission function, make long distance transmission's transmission shaft have better elasticity torsion characteristic, thereby play moment of torsion buffer function in no differential vehicle transmission system, reduce the interior moment of torsion that holds back of vehicle when rugged road surface goes, reduce the transmission system load, reduce tire wear.
The embodiment of the second aspect of the utility model provides a vehicle is still provided.
The utility model discloses drive assembly includes transmission shaft, first universal joint, second universal joint, steel pipe and elastic support piece, the first end of transmission shaft is located and is followed to first universal joint cover the axial slidable of transmission shaft, the second universal joint cover is located the second end of transmission shaft, the first end fixed connection of steel pipe in first universal joint, the second end slidable cover of steel pipe is located the second universal joint, the elastic support piece cover is located the transmission shaft, elastic support piece's outer peripheral face with the internal face of steel pipe offsets.
The utility model discloses drive assembly utilizes the steel pipe to undertake the radial force of transmission shaft when making the transmission shaft realize moment of torsion transfer function under the condition that does not change the appearance and the mounting means of transmission shaft among the prior art, makes long distance transmission's transmission shaft have better elasticity torsional characteristics to play moment of torsion buffer function in no differential vehicle transmission system, reduce the interior moment of torsion that holds back of vehicle when rugged road surface goes, reduce the transmission system load, reduce tire wear.
In some embodiments, the transmission assembly further includes a limiting member, the limiting member is connected to the transmission shaft, a sliding groove is formed in the first universal joint, and the limiting member is slidably connected to the sliding groove.
In some embodiments, an end surface of one side of the elastic support member is disposed obliquely in a radial direction of the elastic support member in an axial direction of the drive shaft.
In some embodiments, the side wall of the elastic support is provided with a plurality of notches, and the notches are distributed at intervals along the circumferential direction of the elastic support.
In some embodiments, the elastic support member is provided in plurality, and the plurality of elastic support members are spaced apart from each other in the axial direction of the drive shaft.
In some embodiments, the resilient support is a spring steel support.
In some embodiments, the transmission shaft is provided with an external spline, the first universal joint is provided with an internal spline matched with the external spline, and the transmission shaft is connected with the first universal joint through a spline.
In some embodiments, the drive shaft is a spring steel drive shaft.
In some embodiments, the first universal joint comprises a first universal joint fork and a first cross shaft which are connected, the first universal joint fork is sleeved at the first end of the transmission shaft and is slidable along the axial direction of the transmission shaft, and the first universal joint fork is connected to the first end of the steel pipe; the second universal joint comprises a second universal joint fork and a second cross shaft which are connected, the second universal joint fork is sleeved at the second end of the transmission shaft, and the second end of the steel pipe is sleeved at the second universal joint fork in a sliding mode.
A vehicle in accordance with an embodiment of the second aspect of the present invention includes the transmission assembly of any one of the above embodiments.
The utility model discloses the vehicle is through adopting the drive assembly of above-mentioned embodiment, need not to change the appearance and the mounting means of transmission shaft among the prior art, thereby need not to change the frame of vehicle and transmission system's appearance and mounting means, utilize the transmission shaft to realize utilizing the steel pipe to undertake the radial force of transmission shaft when moment of torsion transfer function, thereby play the moment of torsion cushioning effect to the transmission system of vehicle, the interior moment of torsion that holds back when having reduced the vehicle and traveling on rugged road surface, reduce the transmission system load, reduce tire wear.
Drawings
Fig. 1 is a schematic view of a transmission assembly according to an embodiment of the present invention.
Fig. 2 is a front view of a resilient support member of an embodiment of the present invention.
Fig. 3 is a right side view of the resilient support member of an embodiment of the present invention.
Fig. 4 is a schematic view of a vehicle according to an embodiment of the present invention.
Reference numerals:
a transmission assembly 100;
a transmission shaft 1;
a first gimbal 2; a first universal joint yoke 21; a first cross 22;
a second universal joint 3; the second yoke 31; a second cross-shaft 32;
a steel pipe 4;
an elastic support member 5; a notch 51;
a stopper 6;
a vehicle body frame 71; a drive motor 72; a short drive shaft 73; the front wheels 74; a front hub reduction gear 75; the rear wheels 76; a rear hub reduction gear 77.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The transmission assembly of the embodiment of the present invention is described below with reference to the drawings.
The utility model discloses drive assembly includes transmission shaft 1, first universal joint 2, second universal joint 3, steel pipe 4 and resilient support spare. The first universal joint 2 is sleeved on a first end (left end shown in fig. 1) of the transmission shaft 1 and is slidable along an axial direction (left and right directions shown in fig. 1) of the transmission shaft 1, the second universal joint 3 is sleeved on a second end (right end shown in fig. 1) of the transmission shaft 1, the first end (left end shown in fig. 1) of the steel pipe 4 is fixedly connected to the first universal joint 2, the second end (right end shown in fig. 1) of the steel pipe 4 is slidably sleeved on the second universal joint 3, the steel pipe 4 is slidable along the axial direction of the steel pipe 4 relative to the second universal joint 3, the steel pipe 4 is rotatable relative to the second universal joint 3 by taking an axis of the steel pipe 4 as a rotation center, the elastic bearing member is sleeved on the transmission shaft 1, an outer peripheral surface of the elastic bearing member 5 is abutted against an inner wall surface of the steel pipe 4, the steel pipe 4 radially supports the transmission shaft 1 through the elastic bearing member 5, so that the transmission assembly has better radial rigidity as a whole, and the transmission shaft 1 is conveniently extended so that the transmission shaft has better torsional deformation capability.
It should be noted that, when the transmission shaft 1 is subjected to an axial force, the transmission shaft 1 slides relative to the first universal joint 2 along the axial direction of the transmission shaft 1, and the transmission shaft 1 elastically contacts the steel pipe 4 through the elastic support 5, when the transmission shaft 1 is subjected to the axial force, the transmission shaft 1 slides relative to the first universal joint 2, so that the transmission shaft 1 is prevented from impacting parts connected with the transmission shaft 1, when the transmission shaft 1 is subjected to a radial force, the transmission shaft 1 transmits the radial force to the steel pipe 4 through the elastic support 5, and simultaneously the elastic support 5 absorbs vibration energy, so that the transmission shaft 1 is prevented from impacting parts connected with the transmission shaft 1.
The utility model discloses the drive assembly utilizes steel pipe 4 to undertake the radial power of transmission shaft 1 when making transmission shaft 1 realize moment of torsion transfer function under the condition that does not change the appearance of transmission shaft 1 among the prior art and mounting means, make long distance transmission's transmission shaft 1 have better elasticity and twist reverse the characteristic, thereby play moment of torsion buffer function in no differential vehicle transmission system, reduce the interior moment of torsion that holds back of the vehicle when rugged road surface goes, reduce the transmission system load, reduce tire wear.
As shown in fig. 1, in some embodiments, the transmission assembly further includes a limiting member 6, the limiting member 6 is connected to the transmission shaft 1, a sliding groove is formed in the first gimbal 2, the limiting member 6 is slidably connected in the sliding groove, and the sliding groove limits a movement range of the limiting member 6, so that a distance that the transmission shaft 1 slides relative to the first gimbal 2 is limited, and the transmission shaft 1 is prevented from being separated from the first gimbal 2.
As shown in fig. 1 to 3, in some embodiments, one end surface of the elastic support 5 is inclined in the axial direction of the driving shaft 1 in the radial direction of the elastic support 5 such that the elastic support 5 has a certain inclination, and when a relative movement occurs between the driving shaft 1 and the steel pipe 4, the elastic support 5 is deformed and frictionally slides between the inner walls of the steel pipe 4, thereby absorbing impact force and vibration.
As shown in fig. 3, specifically, the left side face of the elastic support 5 is inclined rightward in the radial direction of the elastic support 5.
As shown in fig. 2 and 3, in some embodiments, the side wall of the elastic support 5 is provided with a plurality of notches 51, and the plurality of notches 51 are spaced along the circumference of the elastic support 5 to improve the elastic deformability of the elastic support 5.
As shown in fig. 1, in some embodiments, there are a plurality of elastic supporting members 5, the plurality of elastic supporting members 5 are spaced apart from each other along the axial direction of the transmission shaft 1, and the plurality of elastic supporting members 5 further improve the radial support of the steel pipe 4 on the transmission shaft 1, and further improve the damping capacity of the elastic supporting members 5 on the transmission shaft 1.
In some embodiments, the elastic support 5 is a spring steel support, i.e. the elastic support 5 is made of spring steel, further increasing the elasticity of the elastic support 5.
In some embodiments, the transmission shaft 1 is provided with an external spline, the first universal joint 2 is provided with an internal spline matched with the external spline, and the transmission shaft 1 is in splined connection with the first universal joint 2, so that the transmission shaft 1 can slide relative to the first universal joint 2 while transmitting torque to the first universal joint 2, and the transmission assembly has axial buffering capacity.
In some embodiments, the transmission shaft 1 is a spring steel transmission shaft 1, so that the transmission shaft 1 has good torsional elasticity, and a large rotation angle difference is formed between the input end and the output end of the transmission when load is transmitted, thereby buffering impact load in a transmission system.
As shown in fig. 1, in some embodiments, the first universal joint 2 includes a first universal joint fork 21 and a first cross 22 which are connected, the first universal joint fork 21 is sleeved on the first end of the transmission shaft 1 and is slidable along the axial direction of the transmission shaft 1, and the first universal joint fork 21 is connected to the first end of the steel pipe 4; the second universal joint 3 includes a second universal joint yoke 31 and a second cross shaft 32 which are connected, the second universal joint yoke 31 is sleeved on the second end of the transmission shaft 1, the second end of the steel pipe 4 is slidably sleeved on the second universal joint yoke 31, the steel pipe 4 is slidable along the axial direction of the steel pipe 4 relative to the second universal joint yoke 31, and the steel pipe 4 is rotatable relative to the second universal joint yoke 31 by using the axis of the steel pipe 4 as a rotation center.
A vehicle in accordance with an embodiment of the second aspect of the present invention includes the transmission assembly 100 of any of the above embodiments.
The utility model discloses the vehicle is through the drive assembly who adopts above-mentioned embodiment, need not to change the appearance and the mounting means of transmission shaft among the prior art, thereby need not to change the frame of vehicle and transmission system's appearance and mounting means, utilize the transmission shaft to utilize the steel pipe to undertake the radial force of transmission shaft when realizing the moment of torsion transfer function, thereby play the moment of torsion cushioning effect to the transmission system of vehicle, the interior moment of torsion of suppressing when having reduced the vehicle and traveling on rugged road surface, reduce transmission system load and tire wear, improve the life of each spare part and the reliability of vehicle operation among the transmission system.
As shown in fig. 4, in a specific embodiment, the vehicle includes a vehicle body frame 71 and a drive motor 72 connected to the vehicle body frame 71, a stub drive shaft 73, a front wheel 74, a front hub reduction gear 75, a rear wheel 76, a rear hub reduction gear 77, and the transmission assembly 100 of any of the above embodiments.
The driving motor 72, the short transmission shaft 73, the front wheel 74, the front wheel hub reducer 75, the rear wheel 76, the rear wheel hub reducer 77 and the transmission assembly 100 of any one of the embodiments are symmetrically arranged on the left side and the right side of the vehicle body frame 71, two ends of the short transmission shaft 73 are in transmission connection with the front wheel hub reducer 75 and the driving motor 72 respectively, the front wheel hub reducer 75 is in transmission connection with the front wheel 74 to drive the front wheel 74 to rotate, the rear wheel hub reducer 77 is in transmission connection with the rear wheel 76 to drive the rear wheel 76 to rotate, two ends of the transmission assembly 100 are in transmission connection with the front wheel hub reducer 75 and the rear wheel hub reducer 77 respectively, the installation distance between the first universal joint 2 and the second universal joint 3 is 1790.7mm, the transmission shaft 1 adopts a phi 25mm solid shaft and is 1700mm in length, the material is spring steel 60Si2CrVA steel, the material of the va steel pipe 4 adopts phi 16888.9 × 4 × 0mm seamless steel pipe, and the material is Q345.
The inventor has found that in the related art, when the rear wheel of a vehicle is on a horizontal road surface and the front wheel passes through a +/-120 mm common undulating road surface, the rotation angle difference value of the front wheel and the rear wheel is about 2.19 degrees, and the rotation angle difference value is converted into 55.84 degrees at two ends of a transmission shaft, and the rotation angle difference value of the part can only adapt through tire slip due to the small elasticity of a common transmission shaft, so that the transmission system is often in a state with internal holding torque, a large extra load is caused to the transmission system, and a large impact load can be generated when the vehicle runs at a heavy load and a high speed, the road surface has good adhesive force, and the wheel cannot slip and unload in time, so that the transmission system of the vehicle often breaks teeth, breaks shafts and other faults, and the tire has extremely high wear speed and short service life; the utility model discloses the vehicle is before the wheel skids, and this transmission shaft input/output both ends corner difference is about 58.58, can better adapt to common undulation road surface (± 120 mm) front and back wheel corner difference.
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", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for 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 thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. 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.
In the present disclosure, the terms "one embodiment," "some embodiments," "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 disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the above embodiments have been shown and described, it should be understood that they are exemplary and should not be construed as limiting the present invention, and that many changes, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.
Claims (10)
1. A drive assembly, comprising:
a drive shaft;
the first universal joint is sleeved at the first end of the transmission shaft and can slide along the axial direction of the transmission shaft, and the second universal joint is sleeved at the second end of the transmission shaft;
the first end of the steel pipe is fixedly connected to the first universal joint, and the second end of the steel pipe is slidably sleeved on the second universal joint;
the elastic supporting piece is sleeved on the transmission shaft, and the outer peripheral surface of the elastic supporting piece is abutted against the inner wall surface of the steel pipe.
2. The transmission assembly according to claim 1, further comprising a limiting member, wherein the limiting member is connected to the transmission shaft, a sliding slot is formed on the first universal joint, and the limiting member is slidably connected to the sliding slot.
3. The drive assembly according to claim 1, wherein one side end surface of the elastic support member is disposed obliquely in a radial direction of the elastic support member in an axial direction of the drive shaft.
4. The drive assembly of claim 1, wherein the resilient support has a plurality of notches in a sidewall thereof, the plurality of notches being spaced circumferentially of the resilient support.
5. The drive assembly of claim 1, wherein the resilient support is plural in number, and the plural resilient support are spaced apart in an axial direction of the drive shaft.
6. The drive assembly of claim 1, wherein the resilient support is a spring steel support.
7. The transmission assembly according to claim 1, wherein the transmission shaft is provided with an external spline, the first universal joint is provided with an internal spline matched with the external spline, and the transmission shaft is connected with the first universal joint through a spline.
8. The drive assembly of claim 1, wherein the drive shaft is a spring steel drive shaft.
9. The transmission assembly according to claim 1, wherein the first universal joint comprises a first universal joint fork and a first cross shaft which are connected, the first universal joint fork is sleeved on the first end of the transmission shaft and is slidable along the axial direction of the transmission shaft, and the first universal joint fork is connected to the first end of the steel pipe;
the second universal joint comprises a second universal joint fork and a second cross shaft which are connected, the second universal joint fork is sleeved at the second end of the transmission shaft, and the second end of the steel pipe is sleeved at the second universal joint fork in a sliding mode.
10. A vehicle comprising a transmission assembly according to claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222467483.9U CN218408220U (en) | 2022-09-16 | 2022-09-16 | Transmission assembly and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222467483.9U CN218408220U (en) | 2022-09-16 | 2022-09-16 | Transmission assembly and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218408220U true CN218408220U (en) | 2023-01-31 |
Family
ID=85031377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222467483.9U Active CN218408220U (en) | 2022-09-16 | 2022-09-16 | Transmission assembly and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218408220U (en) |
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2022
- 2022-09-16 CN CN202222467483.9U patent/CN218408220U/en active Active
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