CN215751915U - Fuel cell hydrogen energy automobile driving shaft mounting and fixing support - Google Patents
Fuel cell hydrogen energy automobile driving shaft mounting and fixing support Download PDFInfo
- Publication number
- CN215751915U CN215751915U CN202121452242.6U CN202121452242U CN215751915U CN 215751915 U CN215751915 U CN 215751915U CN 202121452242 U CN202121452242 U CN 202121452242U CN 215751915 U CN215751915 U CN 215751915U
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- bearing
- fixing
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Abstract
The utility model relates to the technical field of fuel cells, in particular to a mounting and fixing support for a fuel cell hydrogen energy automobile driving shaft. The utility model provides a fuel cell hydrogen can car drive shaft installation fixed bolster, includes the support body, the support body includes fixed part, installation department and connecting portion, the vertical setting of fixed part, the fixed part passes through the mounting to be connected fixedly with motor assembly's end cover, the installation department is the cylinder structure, and coaxial being equipped with runs through its concentric hole on it, and the coaxial bearing that is equipped with in it, the bearing with installation department interference fit, the vertical setting of installation department is in the rear side of fixed part, the lower extreme of fixed part with the upper end of installation department is passed through connecting portion are connected fixedly.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a mounting and fixing support for a fuel cell hydrogen energy automobile driving shaft.
Background
The hydrogen energy automobile relies on hydrogen as an energy source to carry out chemical reaction to generate electric energy to drive a motor to serve as a direct power source to provide driving force for the whole automobile. A drive axle assembly system is required to transmit the motor torque to the tire to drive the tire in rotation.
Present general hydrogen can automobile drive axle arranges the form two segmentations, and the right side axle does not have the support, receives motor assembly structure influence itself simultaneously, and motor reducer can not arrange in sub vehicle frame intermediate position, leads to left and right drive axle axostylus axostyle inequality (general right drive axle is long a lot than left drive axle), and right drive axle overlength leads to the right drive axle second order mode low and produce resonance easily, and whole car NVH performance is not good.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a mounting and fixing bracket for a drive shaft of a hydrogen energy automobile with a fuel cell.
The utility model provides a mounting and fixing support for a fuel cell hydrogen energy automobile driving shaft, which comprises a support body, wherein the support body comprises a fixing part, a mounting part and a connecting part, the fixing part is vertically arranged, the fixing part is fixedly connected with an end cover of a motor assembly through a fixing part, the mounting part is of a cylindrical structure, a concentric hole penetrating through the mounting part is coaxially arranged on the mounting part, a bearing is coaxially arranged in the mounting part, the bearing is in interference fit with the mounting part, the mounting part is vertically arranged at the rear side of the fixing part, and the lower end of the fixing part is fixedly connected with the upper end of the mounting part through the connecting part.
Further, the connecting part is of an arc structure matched with the right driving shaft.
Further, the fixed part is the triangle-shaped structure, and its lower extreme is equipped with the arc section with right drive axle looks adaptation periphery looks adaptation, and the mounting of telling is the bolt, and it is equipped with threely, be equipped with on the fixed part and be the three screw thread through-hole that triangular distribution, it is three the bolt corresponds install threely in the screw thread through-hole.
Further, coaxial installation circular slot and the mounting hole that distributes around it is proper order along its axial is equipped with in the installation department, just the diameter of mounting hole is less than the diameter of installation circular slot, the bearing is ball bearing, and its coaxial setting is in the installation circular slot, the bearing with installation circular slot interference fit, the coaxial all coaxial retaining ring that is equipped with in both sides of bearing.
Furthermore, the two sides of the bearing are coaxially provided with dust covers, and the two dust covers are respectively and coaxially distributed in the installation circular groove and the installation hole and are in interference fit with the installation circular groove and the installation hole.
Further, the upper end of installation department is equipped with the strengthening rib of cross structure, the strengthening rib sets up along the fore-and-aft direction, its front end extend to with the trailing flank of fixed part is connected fixedly.
The technical scheme provided by the utility model has the beneficial effects that: the mounting and fixing support is additionally arranged on the right driving shaft, so that the length of the shaft lever of the right driving shaft is equal to that of the shaft lever of the left driving shaft, the second-order modal value of the right driving shaft is increased, resonance of the right driving shaft can be avoided, and the NVH performance of the whole vehicle is improved.
Drawings
FIG. 1 is a schematic structural diagram of a mounting and fixing bracket for a drive shaft of a fuel cell hydrogen energy automobile according to the utility model;
FIG. 2 is a schematic structural diagram of a mounting and fixing bracket for a drive shaft of a fuel cell hydrogen energy automobile according to the utility model;
FIG. 3 is a cross-sectional view of a mounting and fixing bracket for a drive shaft of a fuel cell hydrogen-powered vehicle according to the present invention;
FIG. 4 is a cross-sectional view of a mounting bracket for a drive shaft of a fuel cell hydrogen-powered vehicle according to the present invention;
fig. 5 is a schematic view of the mounting structure of the mounting and fixing bracket for the driving shaft of the fuel cell hydrogen energy automobile.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present invention provides a mounting and fixing bracket for a fuel cell hydrogen energy automobile driving shaft, including a bracket body 10, where the bracket body 10 includes a fixing portion 11, a mounting portion 13 and a connecting portion 12, the fixing portion 11 is vertically disposed, the fixing portion 11 is connected and fixed with an end cover of a motor assembly 20 through a fixing member 30, the mounting portion 13 is a cylindrical structure, a concentric hole penetrating through the mounting portion is coaxially disposed on the mounting portion 13, a bearing 14 is coaxially disposed in the mounting portion, the bearing 14 is in interference fit with the mounting portion 13, the mounting portion 13 is vertically disposed on a rear side of the fixing portion 11, and a lower end of the fixing portion 11 is connected and fixed with an upper end of the mounting portion 13 through the connecting portion 12.
Referring to fig. 5, the mounting structure of the mounting and fixing bracket according to the present invention is shown, in which a bracket body 10 is mounted on the right side of a motor assembly 20 and fixed on an end cover of the motor assembly 20 by a fixing member 30, after the bracket body 10 is assembled in place, a right driving shaft 40 is mounted and fixed in a mounting portion 13 of the bracket body 10 and fixed by a bearing 14, and a left driving shaft 50 is symmetrically mounted with the right driving shaft 40 on the left side of the motor assembly 20 and fixed to a motor reducer 60. It should be noted that the left driving shaft 50, the right driving shaft 40, the motor reducer 60 and the motor assembly 20 of the present invention are all the prior art, and the left driving shaft 50, the right driving shaft 40, the motor reducer 60 and the motor assembly 20 of the conventional hydrogen energy vehicle can be all used as specific embodiments of the left driving shaft 50, the right driving shaft 40, the motor reducer 60 and the motor assembly 20 of the present invention, so the specific structures of the left driving shaft 50, the right driving shaft 40, the motor reducer 60 and the motor assembly 20 of the present invention are not limited. The connecting portion 12 is an arc structure adapted to the right driving shaft 40, which on one hand realizes the connection and fixation of the mounting portion 13 and the fixing portion 11, and on the other hand can increase the connection and fixation surface with the right driving shaft 40, thereby ensuring the fixation effect of the right driving shaft 40. The mounting and fixing support is additionally arranged on the right driving shaft 40, so that the length of a shaft lever of the right driving shaft 40 is equal to that of a shaft lever of the left driving shaft 50, the second-order modal value of the right driving shaft 40 is increased, resonance of the right driving shaft 40 can be avoided, and the NVH performance of the whole vehicle is improved. Preferably, the fixing bracket is made of an aluminum alloy A380 material and is formed by casting. The right drive shaft 40 is lighter in overall weight than a conventional general cast iron bracket.
In the above embodiment, the fixing portion 12 is a triangular structure, the lower end of the fixing portion is provided with an arc-shaped section adapted to the outer periphery of the right driving shaft 40, the fixing member 30 is three bolts, the fixing portion 12 is provided with three thread through holes 121 distributed in a triangular shape, and the three bolts are correspondingly installed in the three thread through holes 121.
In the utility model, three bosses for connecting threaded mounting bolts are correspondingly arranged on the end cover of the motor assembly 20, and the fixing structure of the bolts in the utility model has the advantages of simple structure, convenient disassembly and assembly, low implementation cost and the like. The mounting and fixing bracket structurally adopts a mounting surface parallel to the mounting surface of the bearing 14, and can be laterally mounted on an end cover of the motor assembly 20 by using bolts, so that the mounting and dismounting space is large, and the operation is simple and convenient. In addition, the bolt mounting direction can be parallel to the output axis of the differential in the motor reducer 60, the concentricity between the rear support bearing 14 and the differential in the motor reducer 60 can be easily controlled to meet the requirement by adjusting the tolerance of the mounting bolt holes, and the over-tolerance of the concentricity of the long shank of the right driving shaft 40 and the output center of the differential in the motor reducer 60 is avoided, so that the matching spline is worn early and damaged to generate abnormal sound.
In the above embodiment, the installation portion 13 is coaxially provided with the installation circular groove 131 and the installation hole 132 which are sequentially distributed along the axial direction, the diameter of the installation hole 132 is smaller than that of the installation circular groove 131, the bearing 14 is a ball bearing 14 which is coaxially arranged in the installation circular groove 131, the bearing 14 is in interference fit with the installation circular groove 131, and the two sides of the bearing 14 are coaxially provided with the retaining rings 133.
In the utility model, the circular installation groove 131 and the installation hole 132 together form a concentric hole, and a groove body structure for installing the retaining ring 133 is arranged in the circular installation groove 131, so that the retaining ring 133 is installed and fixed. The groove wall of the mounting circular groove 131 and the two retainer rings 133 are used for limiting the movement of the ball bearing 14, and one end of the right drive shaft 40 is sequentially fixed in the ball bearing 14 through the retainer rings 133.
In the above embodiment, the two sides of the bearing 14 are coaxially provided with the dust covers 16, and the two dust covers 16 are respectively and coaxially distributed in the installation circular groove 131 and the installation hole 132, and are in interference fit with the installation circular groove 131 and the installation hole 132.
In the above embodiment, the dust cover 16 functions as a dust and rain shield for the purpose of protecting the bearing 14.
In the above embodiment, the upper end of the mounting portion 13 is provided with the cross-shaped rib 17, and the rib 17 is disposed along the front-rear direction, and the front end thereof extends to be connected and fixed with the rear side surface of the fixing portion 11.
In the present invention, the reinforcing ribs 17 are used to improve the strength of the mounting fixture structure.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the utility model as claimed.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The utility model provides a fuel cell hydrogen can car drive shaft installation fixed bolster, a serial communication port, including support body (10), support body (10) are including fixed part (11), installation department (13) and connecting portion (12), the vertical setting of fixed part (11), fixed part (11) are connected fixedly through mounting (30) and motor assembly (20) end cover, installation department (13) are the cylinder structure, and coaxial being equipped with runs through its concentric hole on it, and coaxial bearing (14) of being equipped with in it, bearing (14) with installation department (13) interference fit, the vertical setting of installation department (13) is in the rear side of fixed part (11), the lower extreme of fixed part (11) with the upper end of installation department (13) is passed through connecting portion (12) are connected fixedly.
2. The mounting and fixing bracket for the driving shaft of the hydrogen-powered automobile with the fuel cell as recited in claim 1, wherein the connecting part (12) is in a circular arc structure matched with the right driving shaft (40).
3. The mounting and fixing bracket for the driving shaft of the hydrogen-powered vehicle with the fuel cell as recited in claim 1, wherein the fixing portion (11) has a triangular structure, the lower end of the fixing portion is provided with an arc-shaped section adapted to the outer circumference of the right driving shaft (40), the fixing member (30) is a bolt, the number of the fixing member is three, the fixing portion (11) is provided with three through holes (121) with threads distributed in a triangular shape, and the three bolts are correspondingly mounted in the three through holes (121).
4. The mounting and fixing bracket for the driving shaft of the hydrogen-powered automobile with the fuel cell as recited in claim 1, wherein the mounting portion (13) is internally and coaxially provided with a mounting circular groove (131) and a mounting hole (132) which are sequentially distributed along the axial direction of the mounting portion in a front-back manner, the diameter of the mounting hole (132) is smaller than that of the mounting circular groove (131), the bearing (14) is a ball bearing (14) which is coaxially arranged in the mounting circular groove (131), the bearing (14) is in interference fit with the mounting circular groove (131), and two sides of the bearing (14) are coaxially provided with retaining rings (133).
5. The mounting and fixing bracket for the driving shaft of the hydrogen-powered automobile with the fuel cell as claimed in claim 4, wherein dust covers (16) are coaxially arranged on two sides of the bearing (14), and the two dust covers (16) are respectively and coaxially distributed in the mounting circular groove (131) and the mounting hole (132) and are in interference fit with the mounting circular groove (131) and the mounting hole (132).
6. The mounting and fixing bracket for the driving shaft of the hydrogen-powered automobile with the fuel cell as claimed in claim 1, wherein the mounting part (13) is provided at an upper end thereof with a cross-shaped rib (17), the rib (17) is arranged in a front-back direction, and a front end thereof extends to be fixedly connected with a rear side surface of the fixing part (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121452242.6U CN215751915U (en) | 2021-06-29 | 2021-06-29 | Fuel cell hydrogen energy automobile driving shaft mounting and fixing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121452242.6U CN215751915U (en) | 2021-06-29 | 2021-06-29 | Fuel cell hydrogen energy automobile driving shaft mounting and fixing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215751915U true CN215751915U (en) | 2022-02-08 |
Family
ID=80102742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121452242.6U Active CN215751915U (en) | 2021-06-29 | 2021-06-29 | Fuel cell hydrogen energy automobile driving shaft mounting and fixing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215751915U (en) |
-
2021
- 2021-06-29 CN CN202121452242.6U patent/CN215751915U/en active Active
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