CN216610736U - Single-stage reduction drive axle assembly - Google Patents
Single-stage reduction drive axle assembly Download PDFInfo
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- CN216610736U CN216610736U CN202122595091.6U CN202122595091U CN216610736U CN 216610736 U CN216610736 U CN 216610736U CN 202122595091 U CN202122595091 U CN 202122595091U CN 216610736 U CN216610736 U CN 216610736U
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- driving gear
- transmission shaft
- shaft
- drive axle
- transmission
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Abstract
The utility model discloses a single-stage reduction drive axle assembly which comprises a speed reducer assembly, a differential mechanism, a half axle and a drive axle housing, wherein the speed reducer assembly mainly comprises a driving gear and a driven gear, the driving gear and the driven gear are in meshing transmission, one end of the driving gear is also integrally provided with a transmission shaft, the front end of the transmission shaft is provided with two tapered roller bearings in a supporting manner, the rear end of the driving gear is provided with a cylindrical roller bearing in a supporting manner, the outer side of the driving gear is provided with at least two shaft shoulders, and the tapered roller bearing is arranged in a supporting manner through the shaft shoulders. The transmission shaft is fixedly arranged through the three-section type bearing support, so that the bearing support rigidity can be improved, the influence of the stress deformation of the bearing drive of the transmission shaft is reduced, the stability of the transmission shaft and the driving gear on the transmission shaft is enhanced, the abrasion influence of the meshing drive of the gear is reduced during the transmission of the transmission shaft, and the integrated cast axle housing is assembled in a matching manner, so that good external fixation is provided for internal transmission, and the stability is further improved.
Description
Technical Field
The utility model belongs to the technical field of drive axles, and particularly relates to a single-stage speed reduction drive axle assembly.
Background
Along with the further increase of urban living population, in order to increase passenger capacity, the demand for the bus is bigger and bigger, and new forms of energy electricelectric moves the bus because of its use motor drive, and the clean environmental protection of the energy for the noise is very low when the vehicle marchs, and the travelling comfort is very high.
In the traditional drive axle that new forms of energy electricelectric moves bus and match in the existing market, the axle housing adopts a welding axle housing more, and axle housing rigidity is little, and when driving motor accelerated in the twinkling of an eye, the moment of its production is great, and the axle housing is yielding, and gear poor stability when the braking of vehicle and drive, fragile in transmission work, influences the whole life of axle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a drive axle with enhanced overall strength and stability to solve the problems of poor stability and easy deformation and damage of a drive axle aiming at the defects in the prior art.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a single reduction drive axle assembly, includes reduction gear assembly, differential mechanism, semi-axis and transaxle shell, the reduction gear assembly includes driving gear and driven gear, driving gear and driven gear meshing transmission, driving gear one end still is equipped with integrated into one piece's transmission shaft, transmission shaft front end supporting is equipped with two tapered roller bearings, driving gear rear end supporting has cylindrical roller bearing, the driving gear outside is equipped with two at least shoulders, and one of them shoulder is the location shoulder, and passes through a tapered roller bearing is installed to location shoulder supporting.
Further, the small ends of the two tapered roller bearings are oppositely arranged.
Further, the driving axle housing is an integrated casting.
Furthermore, two shaft shoulders on the transmission shaft are arranged in a stepped mode in sequence.
Further, a bearing spacer bush is arranged between the two tapered roller bearings.
Furthermore, the driving axle housing is a ball-milling iron casting.
Compared with the prior art, the utility model has the advantages that:
according to the single-stage reduction drive axle assembly, the transmission shaft is fixedly arranged through the three-section type bearing support, so that the bearing support rigidity can be improved, the influence of the forced deformation of the bearing drive of the transmission shaft is reduced, the stability of the transmission shaft and a driving gear on the transmission shaft is enhanced, and the abrasion influence of gear meshing transmission is reduced during transmission; the integrated casting axle housing is assembled in a matched mode, the inner wall of the axle housing has a good noise absorbing effect in transmission work, the strength is high, the compression deformation is small, good external fixation is provided for internal transmission, and the stability is further improved.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention
FIG. 2 is an enlarged view of the portion A in FIG. 1
In the figure: 1. a drive shaft; 2. a tapered roller bearing; 3. a cylindrical roller bearing; 4. a shaft shoulder; 5. a drive axle housing; 6. and a bearing spacer bush.
Detailed Description
The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length h", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. 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 such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
Referring to fig. 1 and 2, the single-stage reduction drive axle assembly mainly comprises a reducer assembly, a differential, a half axle and a drive axle housing 5, wherein the reducer assembly mainly comprises a driving gear and a driven gear, the driving gear and the driven gear are in meshing transmission, one end of the driving gear is also integrally provided with a transmission shaft 1, the front end of the transmission shaft 1 is supported and provided with two tapered roller bearings 2, the small ends of the two tapered roller bearings 2 are opposite, the rear end of the driving gear is supported and provided with a cylindrical roller bearing 3, the outer side of the driving gear is provided with at least two shaft shoulders 4, one of the shaft shoulders 4 is a positioning shaft shoulder, and one of the tapered roller bearings 2 is supported and installed through the shaft shoulder 4.
Still be equipped with bearing spacer 6 between two tapered roller bearings 2, locate between two tapered roller bearings 2, convenient location and mediation bearing play stabilize the roller bearing of subtend setting.
Two shaft shoulders 4 are cascaded and arrange in proper order on the transmission shaft 1, and two tapered roller bearings 2 are installed to cascaded shaft shoulder 4, constitute three-section bearing support fixed arrangement with the cylindrical roller bearing 3 of driving gear rear end, improve bearing support rigidity, reduce the influence that bears the weight of drive atress deformation.
Driving axle housing 5 formula casting part as an organic whole, driving axle housing 5's material is preferably the better ball-milling cast iron of castability, and this kind of axle housing inner wall thickness is great, and has high strength, high wear resistant characteristic.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A single reduction drive axle assembly which characterized in that:
comprises a speed reducer assembly, a differential mechanism, a half shaft and a driving axle housing (5), wherein the speed reducer assembly comprises a driving gear and a driven gear, the driving gear is in meshing transmission with the driven gear, one end of the driving gear is also provided with an integrally formed transmission shaft (1), the front end of the transmission shaft (1) is supported by two tapered roller bearings (2), the rear end of the driving gear is supported by a cylindrical roller bearing (3),
the outer side of the driving gear is provided with at least two shaft shoulders (4), one shaft shoulder (4) is a positioning shaft shoulder, and a tapered roller bearing (2) is mounted through the positioning shaft shoulder in a supporting mode.
2. The single reduction drive axle assembly of claim 1, wherein:
the small ends of the two tapered roller bearings (2) are oppositely arranged.
3. The single reduction drive axle assembly of claim 2, wherein:
the driving axle housing (5) is an integrated casting.
4. The single reduction drive axle assembly of claim 1, wherein:
two shaft shoulders (4) on the transmission shaft (1) are arranged in a stepped manner in sequence.
5. The single reduction drive axle assembly of claim 1, wherein:
and a bearing spacer bush (6) is also arranged between the two tapered roller bearings (2).
6. The single reduction drive axle assembly according to claim 1, wherein:
the driving axle housing (5) is a ball milling iron casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122595091.6U CN216610736U (en) | 2021-10-27 | 2021-10-27 | Single-stage reduction drive axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122595091.6U CN216610736U (en) | 2021-10-27 | 2021-10-27 | Single-stage reduction drive axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216610736U true CN216610736U (en) | 2022-05-27 |
Family
ID=81693637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122595091.6U Active CN216610736U (en) | 2021-10-27 | 2021-10-27 | Single-stage reduction drive axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216610736U (en) |
-
2021
- 2021-10-27 CN CN202122595091.6U patent/CN216610736U/en active Active
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