CN219975272U - Novel interaxial differential mechanism assembly - Google Patents
Novel interaxial differential mechanism assembly Download PDFInfo
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- CN219975272U CN219975272U CN202320895113.7U CN202320895113U CN219975272U CN 219975272 U CN219975272 U CN 219975272U CN 202320895113 U CN202320895113 U CN 202320895113U CN 219975272 U CN219975272 U CN 219975272U
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- planetary gear
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- needle bearing
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- 238000002955 isolation Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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Abstract
The utility model discloses a novel inter-axle differential assembly, which comprises an input shaft, a driving cylindrical gear, a planetary gear shaft seat and a rear half shaft gear, wherein the driving cylindrical gear is connected with the input shaft through a third needle bearing, the planetary gear shaft seat is connected with the input shaft through a spline, a planetary gear pin shaft is connected with a planetary gear shaft seat through an elastic cylindrical pin, the rear half shaft gear is integrated on a differential housing, the rear half shaft gear is matched with the input shaft in a radial way through a second needle bearing, the planetary gear is connected with the planetary gear pin shaft, two sides of the planetary gear are respectively meshed with a front half shaft gear integrated with the driving cylindrical gear and a rear half shaft gear integrated with the inter-axle differential housing, and the planetary gear is connected with the planetary gear pin shaft through a first needle bearing.
Description
Technical Field
The utility model belongs to the field of automobile parts, and particularly relates to a novel inter-axle differential assembly.
Background
At present, the multi-planet row structure of the inter-axle differential mechanism of the multi-connected drive axle has large weight, and the planet wheel axle are matched by adopting hole shafts, so that the problem that the planet wheel is burnt and even cracked due to abrasion of the hole shafts is easy to occur.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model adopts the following technical scheme:
a novel inter-axle differential assembly includes an input shaft, a drive spur gear, a planetary gear shaft seat, and a rear axle shaft gear.
The driving cylindrical gear is connected with the input shaft through a third needle bearing.
The planetary gear shaft seat is connected with the input shaft through a spline, and the planetary gear pin shaft is connected with the planetary gear shaft seat through an elastic cylindrical pin.
The rear half-shaft gear is integrated on the differential housing and is engaged with the input shaft by a second needle bearing.
The planetary gear is connected with a planetary gear pin shaft, two sides of the planetary gear are respectively meshed with a front half shaft gear integrated with the driving cylindrical gear and a rear half shaft gear integrated with the inter-axle differential housing, and the planetary gear is connected with the planetary gear pin shaft through a first needle bearing.
Further, the outer side of the first needle roller bearing is positioned through an inner hole stepped shaft of the planetary gear, the inner side of the first needle roller bearing is axially positioned through a backing ring, and the backing ring is assembled on the planetary gear shaft seat.
Furthermore, the planet pin shaft and the planet pin shaft seat are fixed by adopting elastic cylindrical pins.
Further, the differential case is connected with an oil collecting cover, and the rear half shaft gear is located inside the oil collecting cover.
Further, the number of the planetary gears is 4-6.
Furthermore, the left end face of the driving cylindrical gear is of an end face straight tooth structure, the right end face of the driving cylindrical gear is of a bevel tooth structure, the driving cylindrical gear is assembled on the input shaft through two rows of third needle bearings, a thrust washer is assembled between the left end face of the driving cylindrical gear and the input shaft, and the thrust washer is used for adjusting a gap between the driving cylindrical gear and the input shaft.
Furthermore, the elastic cylindrical pin is inserted into the planetary gear shaft seat and the planetary gear pin shaft, and the planetary gear shaft seat is connected with the planetary gear pin shaft, so that steering and axial movement of the planetary gear pin shaft are limited.
Further, two rows of second needle bearings are arranged between the rear half shaft gear and the input shaft, an isolation shaft sleeve is connected between the end face of the rear half shaft gear and the input shaft, and the isolation shaft sleeve is used for limiting.
Further, the driving cylindrical gear and the front half-shaft gear are of an integrated structure, and the inter-shaft differential housing and the rear half-shaft gear are of an integrated structure.
Furthermore, the planetary gears and the side gears are meshed by adopting an included angle of other than 90 degrees, so that torque distribution of an inter-axle differential mechanism of other than 1:1 is realized; the planetary gear is connected with a planetary gear pin shaft through a first needle bearing and limited through a backing ring.
Further, the planetary gear is assembled with the planetary gear pin shaft through a first needle bearing, the outer side of the first needle bearing is positioned through a stepped shaft of an inner hole of the planetary gear, the inner side of the first needle bearing is axially positioned through a backing ring, and the backing ring is assembled on the planetary gear shaft seat.
The utility model has the beneficial effects that:
1. according to the utility model, the planetary gear pin shaft is matched with the planetary gear by adopting the needle bearing, so that the phenomenon of dead burning and cracking caused by abrasion of the hole shaft is effectively improved.
2. The non-90-degree planetary gear and the side gear are meshed, so that torque distribution of the multi-axle is effectively adapted.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a partial enlarged view of a portion a in fig. 1.
In the figure: 1-an input shaft; 2-thrust washers; 3-driving cylindrical gears; 4-a planet wheel pin shaft; 5-planetary gears; 6-backing rings; 7-elastic cylindrical pins; 8-rear half-shaft gear; 9-isolating shaft sleeve; 10-a planetary gear shaft seat; 11-an oil collecting cover; 12-a first needle bearing; 13-a second needle bearing; 14-third needle bearing.
Detailed Description
The utility model is further described with reference to the drawings and reference numerals.
In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.
The terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
Example 1:
as shown in fig. 1 and 2, a novel inter-axle differential assembly includes an input shaft 1, a drive spur gear 3, a planetary gear 5, a planetary gear shaft seat 10, and a rear side gear 8.
The driving spur gear 3 is connected to the input shaft 1 via a third needle bearing 14.
The planetary gear shaft seat 10 is connected with the input shaft 1 through a spline, and the planetary gear pin shaft 4 is connected with the planetary gear shaft seat 10 through an elastic cylindrical pin 7.
The rear side gear 8 is integrated in the differential housing, the rear side gear 8 being radially coupled to the input shaft 1 by means of a second needle bearing 13.
The planetary gear 5 is connected with the planetary gear pin shaft 4, two sides of the planetary gear 5 are respectively meshed with a front half shaft gear integrated with the driving cylindrical gear 3 and a rear half shaft gear 8 integrated with an inter-shaft differential housing, and the planetary gear 5 is connected with the planetary gear pin shaft 4 through a first needle bearing 12.
The outer side of the first needle bearing 12 is positioned through an inner hole stepped shaft of the planetary gear 5, the inner side of the first needle bearing 12 is axially positioned through a backing ring 6, and the backing ring 6 is assembled on the planetary gear shaft seat 10.
The planet wheel pin shaft 4 and the planet gear shaft seat 10 are fixed by adopting an elastic cylindrical pin 7.
The differential case is connected with an oil collecting cover 11, and the rear side gear 8 is located inside the oil collecting cover 11.
The number of the planetary gears 5 is 4-6.
The left end face of the driving cylindrical gear 3 is of an end face straight tooth structure, the right end face of the driving cylindrical gear 3 is of a bevel tooth structure, the driving cylindrical gear 3 is assembled on the input shaft 1 through two rows of third needle bearings 14, a thrust washer 2 is assembled between the left end face of the driving cylindrical gear 3 and the input shaft 1, and the thrust washer 2 is used for adjusting a gap between the driving cylindrical gear 3 and the input shaft 1.
The elastic cylindrical pin 7 is inserted into the planetary gear shaft seat 10 and the planetary gear shaft seat 4, and the planetary gear shaft seat 10 is connected with the planetary gear shaft seat 4, so that the steering and axial movement of the planetary gear shaft seat 4 are limited, when the planetary gear is installed, the planetary gear shaft seat 4 is inserted into the planetary gear shaft seat 10, and then the elastic cylindrical pin 7 is inserted into the planetary gear shaft seat 4 and the planetary gear shaft seat 10 to connect the two.
Two rows of second needle bearings 13 are arranged between the rear half shaft gear 8 and the input shaft 1, an isolating shaft sleeve 9 is connected between the end face of the rear half shaft gear 8 and the input shaft 1, and the isolating shaft sleeve 9 is used for limiting the second needle bearings 13.
The driving cylindrical gear 3 and the front half shaft gear are of an integrated structure, and the inter-shaft differential housing and the rear half shaft gear 8 are of an integrated structure.
The planetary gears 5 and the side gears are meshed by adopting an included angle of other than 90 degrees, so that torque distribution of an inter-axle differential mechanism of other than 1:1 is realized; the planetary gear 5 is connected with the planetary gear pin shaft 4 through a first needle bearing 12 and limited through a backing ring 6. The torque distribution of 1:1 is that the middle and rear axles are distributed to the same torque, and a non-1:1 distribution mode can be suitable for other situations, such as a muddy road drive axle which requires larger force.
The planetary gear 5 is assembled with the planetary gear pin shaft 4 through a first needle bearing 12, the outer side of the first needle bearing 12 is positioned through a stepped shaft of an inner hole of the planetary gear 5, the inner side of the first needle bearing 12 is axially positioned through a backing ring 6, and the backing ring 6 is assembled on the planetary gear shaft seat 10.
The utility model is not limited to the above-described alternative embodiments, and any person who may derive other various forms of products in the light of the present utility model, however, any changes in shape or structure thereof, all falling within the technical solutions defined in the scope of the claims of the present utility model, fall within the scope of protection of the present utility model.
Claims (8)
1. A novel interaxle differential assembly, characterized in that: comprises an input shaft (1), a driving cylindrical gear (3), a planetary gear (5), a planetary gear shaft seat (10) and a rear half shaft gear (8);
the driving cylindrical gear (3) is connected with the input shaft (1) through a third needle bearing (14);
the planetary gear shaft seat (10) is connected with the input shaft (1) through a spline, and the planetary gear pin shaft (4) is connected with the planetary gear shaft seat (10) through an elastic cylindrical pin (7);
the rear half shaft gear (8) is integrated on the differential shell, and the rear half shaft gear (8) is matched with the input shaft (1) through a second needle bearing (13);
the planetary gear (5) is connected with the planetary gear pin shaft (4), two sides of the planetary gear (5) are respectively meshed with a front half shaft gear integrated with the driving cylindrical gear (3) and a rear half shaft gear (8) integrated with the inter-shaft differential mechanism shell, and the planetary gear (5) is connected with the planetary gear pin shaft (4) through a first needle bearing (12).
2. The novel inter-axle differential assembly as defined in claim 1, wherein: the outer side of the first needle bearing (12) is positioned through an inner hole stepped shaft of the planetary gear (5), the inner side of the first needle bearing (12) is axially positioned through a backing ring (6), and the backing ring (6) is assembled on the planetary gear shaft seat (10).
3. The novel inter-axle differential assembly as defined in claim 1, wherein: the differential case is connected with an oil collecting cover (11), and the rear half shaft gear (8) is positioned inside the oil collecting cover (11).
4. The novel inter-axle differential assembly as defined in claim 2, wherein: the number of the planetary gears (5) is 4-6.
5. The novel inter-axle differential assembly as defined in claim 1, wherein: the driving cylindrical gear (3) is of an end face straight tooth structure, the right end face is of a bevel tooth structure, and a thrust washer (2) is arranged between the left end face of the driving cylindrical gear (3) and the input shaft (1).
6. The novel inter-axle differential assembly as recited in claim 3, wherein: the elastic cylindrical pin (7) is inserted into the planetary gear shaft seat (10) and the planetary gear pin shaft (4).
7. The novel inter-axle differential assembly as defined in claim 1, wherein: two rows of second needle bearings (13) are arranged between the rear half shaft gear (8) and the input shaft (1), and an isolation shaft sleeve (9) is connected between the end face of the rear half shaft gear (8) and the input shaft (1).
8. The novel inter-axle differential assembly as defined in claim 1, wherein: the driving cylindrical gear (3) and the front half shaft gear are of an integrated structure, and the inter-shaft differential shell and the rear half shaft gear (8) are of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320895113.7U CN219975272U (en) | 2023-04-20 | 2023-04-20 | Novel interaxial differential mechanism assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320895113.7U CN219975272U (en) | 2023-04-20 | 2023-04-20 | Novel interaxial differential mechanism assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219975272U true CN219975272U (en) | 2023-11-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320895113.7U Active CN219975272U (en) | 2023-04-20 | 2023-04-20 | Novel interaxial differential mechanism assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219975272U (en) |
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2023
- 2023-04-20 CN CN202320895113.7U patent/CN219975272U/en active Active
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