CN220037379U - Lightweight through type main reducer assembly - Google Patents
Lightweight through type main reducer assembly Download PDFInfo
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- CN220037379U CN220037379U CN202320349729.4U CN202320349729U CN220037379U CN 220037379 U CN220037379 U CN 220037379U CN 202320349729 U CN202320349729 U CN 202320349729U CN 220037379 U CN220037379 U CN 220037379U
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- bevel gear
- output shaft
- assembly
- bearing assembly
- lightweight
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- 239000003638 chemical reducing agent Substances 0.000 title abstract description 11
- 239000000428 dust Substances 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 101100334117 Caenorhabditis elegans fah-1 gene Proteins 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model provides a lightweight through type main speed reducer assembly, which comprises a shell assembly, an input flange, a driving bevel gear belt bearing assembly, a driven bevel gear belt pulley difference assembly and an output shaft belt bearing assembly, wherein the input flange is connected with the driving bevel gear belt bearing assembly through a spline, the input flange, the driving bevel gear belt bearing assembly and the output shaft belt bearing assembly are coaxial, the driving bevel gear belt bearing assembly comprises a driving bevel gear, the output shaft belt bearing assembly comprises an output shaft, the driving bevel gear is coaxially arranged with the output shaft, an inner spline at the end part of the driving bevel gear is matched with an outer spline of the output shaft so as to be capable of transmitting power into the driven bevel gear belt pulley difference assembly and the output shaft belt bearing assembly through the driving bevel gear belt bearing assembly through the input flange. The defects that an inter-axle differential mechanism is redundant in the prior art, and when a differential lock is not used properly, the differential mechanism is extremely easy to burn and death and the like can be overcome.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to a lightweight through type main speed reducer assembly.
Background
At present, a through type main speed reducer assembly is basically provided with an inter-axle differential mechanism assembly structure, and for vehicles running at a low speed and not using an inter-axle differential lock for a long time, the inter-axle differential mechanism becomes redundant, and when the differential lock is not used, the problems of dead burning of the differential mechanism and the like are extremely easy to occur, so that after-sale faults are brought, and customer dissatisfaction is caused.
Disclosure of Invention
Therefore, the utility model provides the lightweight through type main speed reducer assembly, which can overcome the defects that for vehicles running at low speed and not using an inter-axle differential lock for years, the inter-axle differential becomes redundant, and when the differential lock is not used, the differential is extremely easy to burn and the like in the prior art.
In order to solve the problems, the utility model provides a lightweight through type main speed reducer assembly, which comprises a shell assembly, an input flange, a driving bevel gear belt bearing assembly, a driven bevel gear belt pulley differential assembly and an output shaft belt bearing assembly, wherein the input flange is connected with the driving bevel gear belt bearing assembly through a spline, the input flange, the driving bevel gear belt bearing assembly and the output shaft belt bearing assembly are coaxial, the driving bevel gear belt bearing assembly comprises a driving bevel gear, the output shaft belt bearing assembly comprises an output shaft, the driving bevel gear is coaxially arranged with the output shaft, an inner spline at the end part of the driving bevel gear is matched with an outer spline of the output shaft, so that power can be transmitted into the driven bevel gear belt pulley differential assembly and the output shaft belt bearing assembly through the driving bevel gear belt bearing assembly through the input flange.
In some embodiments, the drive bevel gear is a constant-height tooth, the drive bevel gear is provided with a tapered roller big bearing and a tapered roller small bearing, and a wave sleeve is arranged between the tapered roller big bearing and the tapered roller small bearing.
In some embodiments, the minimum distance between the axial center line of the driving conical gear and the axial center line of the whole vehicle drive axle is L 1 ，L 1 The value range is 48 mm-52 mm.
In some embodiments, the output shaft-bearing assembly further comprises a ball bearing that is a four-point contact ball bearing having a multi-lip high protection oil seal and an oil seal dust cover.
In some embodiments, the output shaft-bearing assembly further comprises a spacer and a circlip for hole use in the ball bearing positioning.
In some embodiments, the output flange of the output shaft with bearing assembly is provided separate from the output shaft.
In some embodiments, the spline is an involute spline having a reference diameter of from Φ43mm to Φ47mm and a length of from 50mm to 60mm.
In some embodiments, the driven bevel gear pulley differential assembly includes a differential case, a spider, and a resilient pin through which the differential case and spider are connected.
According to the lightweight through-type main speed reducer assembly, through eliminating the structure of the inter-axle differential and the cylindrical gear pair, the whole bridge reliability is ensured, and meanwhile, the weight of the whole main speed reducer assembly is reduced by 15% -20%; the number of corresponding parts is reduced by about 20, and the assembly efficiency of the production line is improved by about 20%. The technical scheme of the utility model also reduces the cost by about 10%, directly eliminates after-sales faults caused by the inter-axle differential mechanism and improves the customer satisfaction.
Drawings
FIG. 1 is a schematic view of a lightweight through-drive assembly according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1 of a lightweight through-drive final drive assembly according to an embodiment of the utility model.
The reference numerals are expressed as:
1. a housing assembly; 2. a driving bevel gear belt bearing assembly; 21. an internal spline; 22. a wave sleeve; 23. a drive bevel gear; 3. an input flange; 4. driven bevel gear pulley differential assembly; 41. a driven bevel gear; 42. an elastic pin; 43. a cross shaft; 44. a differential case; 5. an output shaft with a bearing assembly; 51. an output shaft; 52. a ball bearing; 53. an oil seal dust cover; 54. multi-lip high protection oil seal; 55. circlips for holes; 56. a gasket; 57. an external spline.
Detailed Description
Referring to fig. 1 to 2 in combination, according to an embodiment of the present utility model, there is provided a lightweight through-type final drive assembly, comprising a housing assembly 1, an input flange 3, a driving bevel gear belt bearing assembly 2, a driven bevel gear pulley differential assembly 4, and an output shaft belt bearing assembly 5, wherein the input flange 3 is spline-connected with the driving bevel gear belt bearing assembly 2, and the input flange 3, the driving bevel gear belt bearing assembly 2, and the output shaft belt bearing assembly 5 are coaxial, the driving bevel gear belt bearing assembly 2 includes a driving bevel gear 23, the output shaft belt bearing assembly 5 includes an output shaft 51, the driving bevel gear 23 is coaxially disposed with the output shaft 51, and an internal spline 21 provided at an end of the driving bevel gear 23 is adapted to an external spline 57 of the output shaft 51 so as to be able to transmit power through the input flange 3, through the driving bevel gear belt bearing assembly 2, and into the driven bevel gear pulley differential assembly 4 and the output shaft belt bearing assembly 5. By coaxially arranging the drive bevel gear 23 and the output shaft 51, the energy loss of the transmission through the cylindrical gear pair in the existing design can be reduced, and the transmission efficiency is improved.
In a specific embodiment, the drive bevel gear 23 is a constant-height tooth, the drive bevel gear 23 has a large tapered roller bearing and a small tapered roller bearing, and a wave sleeve 22 is disposed between the large tapered roller bearing and the small tapered roller bearing. The waveform sleeve 22 is adopted to realize one-time adjustment of the pretightening force of the main cone, so that the adjustment gasket is not required to be repeatedly disassembled and assembled, and the assembly efficiency of the production line is improved.
In a specific embodiment, the minimum distance between the axial center line of the driving bevel gear 23 and the axial center line of the whole vehicle drive axle is L 1 ，L 1 The value range is 48 mm-52 mm. The axis of the driving bevel gear 23 is arranged above the horizontal central line L of the whole bridge 1 At 49mm, the axial height of the driving conical gear 23 is reduced, so that the included angle of a transmission shaft can be reduced, and the total main speed reducer is improvedReliability of the product.
In a specific embodiment, the output shaft bearing assembly 5 further includes a ball bearing 52, the ball bearing 52 is a four-point contact ball bearing, and the ball bearing 52 has a multi-lip high protection oil seal 54 and an oil seal dust cover 53. The oil seal is a multi-lip high-protection oil seal 54 and is provided with an oil seal dust cover 53, so that the protection capability of the main speed reducer assembly is further improved.
In a specific embodiment, the output shaft bearing assembly 5 further includes a spacer 56 and a circlip 55 for hole positioning of the ball bearing 52. This structural arrangement makes assembly simpler.
In a specific embodiment, the output flange of the output shaft bearing assembly 5 is provided separately from the output shaft 51.
In a specific embodiment, the spline is an involute spline, and the reference diameter of the spline is phi 43 mm-phi 47mm, and the length of the spline is 50 mm-60 mm.
Specifically, the splines include internal splines 21 and external splines 57.
Specifically, the spline reference diameter is phi 45mm, the length is 50mm, and the other relevant dimensional tolerances of the spline are in accordance with DIN5480.
In a specific embodiment, the driven bevel gear pulley differential assembly 4 includes a differential case 44, a cross 43, and an elastic pin 42, where the differential case 44 and the cross 43 are connected by the elastic pin 42.
The power transmission route of the specific embodiment is as follows:
power enters from the input flange 3 and is transmitted to the driving bevel gear 23 through a spline, the driving bevel gear 23 transmits power to the driven bevel gear 41 of the driven bevel gear pulley differential assembly 4 through gear tooth engagement and transmits power to the output shaft 51 through spline engagement, the driven bevel gear 41 and the differential case 44 are fixed through bolts to transmit power to the differential case 44, and the differential case 44 transmits power to the side gear through a cross shaft and gear teeth and finally transmits the power to the tire, and the output shaft 51 is transmitted to the output flange through a spline and finally transmits the power to the non-through drive axle.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (8)
1. The utility model provides a lightweight through-type final drive assembly, its characterized in that, includes casing assembly (1), input flange (3), initiative bevel gear area bearing assembly (2), driven bevel gear band pulley difference assembly (4), output shaft area bearing assembly (5), input flange (3) with initiative bevel gear area bearing assembly (2) pass through spline connection, just input flange (3) initiative bevel gear area bearing assembly (2) with output shaft area bearing assembly (5) coaxial line, initiative bevel gear area bearing assembly (2) include initiative bevel gear (23), output shaft area bearing assembly (5) include output shaft (51), initiative bevel gear (23) with output shaft (51) coaxial arrangement, internal spline (21) that initiative bevel gear (23) tip had with external spline (57) looks adaptation of output shaft (51) are passed through input flange (3), are passed through initiative bevel gear area bearing assembly (2) are gone into driven bevel gear area pulley difference assembly (4) and output shaft area bearing assembly (5).
2. The lightweight through-type final drive assembly according to claim 1, characterized in that the drive bevel gear (23) is a constant-height tooth, the drive bevel gear (23) is provided with a tapered roller large bearing and a tapered roller small bearing, and a wave sleeve (22) is arranged between the tapered roller large bearing and the tapered roller small bearing.
3. The lightweight through-drive final drive assembly according to claim 1, whereinThe minimum distance between the axial center line of the drive bevel gear (23) and the axial center line of the whole vehicle drive axle is L 1 ，L 1 The value range is 48 mm-52 mm.
4. The lightweight through-type final drive assembly according to claim 1, characterized in that the output shaft-bearing assembly (5) further comprises a ball bearing (52), the ball bearing (52) is a four-point contact ball bearing, the ball bearing (52) has a multi-lip high-protection oil seal (54) and an oil seal dust cover (53).
5. The lightweight through-going final drive assembly according to claim 4, characterized in that the output shaft-bearing assembly (5) further comprises shims (56) and circlips (55) for positioning the ball bearings (52).
6. The lightweight through-drive final drive assembly according to claim 1, wherein the output flange of the output shaft-bearing assembly (5) is provided separate from the output shaft (51).
7. The lightweight through-type final drive assembly according to claim 1, wherein the spline is an involute spline having a reference diameter Φ43mm to Φ47mm and a length 50mm to 60mm.
8. The lightweight through-drive final drive assembly according to claim 1, wherein the driven bevel gear pulley differential assembly (4) comprises a differential case (44), a cross (43) and a resilient pin (42), the differential case (44) and the cross (43) being connected by the resilient pin (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349729.4U CN220037379U (en) | 2023-03-01 | 2023-03-01 | Lightweight through type main reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320349729.4U CN220037379U (en) | 2023-03-01 | 2023-03-01 | Lightweight through type main reducer assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220037379U true CN220037379U (en) | 2023-11-17 |
Family
ID=88740686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320349729.4U Active CN220037379U (en) | 2023-03-01 | 2023-03-01 | Lightweight through type main reducer assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220037379U (en) |
-
2023
- 2023-03-01 CN CN202320349729.4U patent/CN220037379U/en active Active
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