CN203237061U - Commercial vehicle main speed reducer assembly and single-stage speed reduction drive axle - Google Patents
Commercial vehicle main speed reducer assembly and single-stage speed reduction drive axle Download PDFInfo
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- CN203237061U CN203237061U CN 201320284928 CN201320284928U CN203237061U CN 203237061 U CN203237061 U CN 203237061U CN 201320284928 CN201320284928 CN 201320284928 CN 201320284928 U CN201320284928 U CN 201320284928U CN 203237061 U CN203237061 U CN 203237061U
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- axle
- main gearbox
- commercial vehicle
- bevel gear
- bearing seat
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Abstract
The utility model provides a commercial vehicle main speed reducer assembly and a single-stage speed reduction drive axle. The commercial vehicle main speed reducer assembly comprises a main speed reducer shell, a bearing block, a drive bevel gear, a driven bevel gear and a differential mechanism assembly, wherein the drive bevel gear and the driven bevel gear are mutually meshed. The bearing block is connected to the top of the main speed reducer shell through bolts, the drive bevel gear is connected with the bearing block through a pair of conical roller bearings, and the driven bevel gear and the differential mechanism assembly are connected through bolts. The commercial vehicle main speed reducer assembly further comprises a retarder. The diameter phi of the top of the main speed reducer shell and the diameter phi of the outer edge of the bearing block are both 235mm-260mm; the top of one side of the main speed reducer shell is connected with a root portion through a slope and the root portion is perpendicular to an axle housing connecting flange; a stator of the retarder is connected with the bearing block through bolts; a rotor is connected with a transmission shaft connecting flange through bolts. The utility model further relates to the single-stage speed reduction drive axle.
Description
Technical field
The utility model relates to a kind of speed reducer assembly, particularly the main gearbox assembly on a kind of commercial vehicle/comm..vehicle.The utility model also relates to a kind of singl-reduction axle that this main gearbox assembly is installed.
Background technology
The raising that quality of the life is required along with the improvement of highway in China condition and people, the singl-reduction axle technology is irreversibly towards little speed ratio, low noise, lightweight, the development of high efficiency single-stage, comfortable, safety, environmental protection, efficient and energy-conservation become the main flow trend of commercial vehicle/comm..vehicle development gradually.The drive axle assembly is positioned at the end of automotive transmission, and its basic function is the torque that increases to be come by the transmission shaft transmission, to the left and right driving wheel, and makes the left and right driving wheel have differential function torque distribution; Simultaneously, drive axle also will bear vertical force, longitudinal force and the moment that acts on road surface and vehicle frame.Existing commercial vehicle/comm..vehicle with the main gearbox assembly in the drive axle as shown in Figure 1, comprise final drive casing, bearing seat, intermeshing drive bevel gear and by dynamic bevel gear, and differential assembly, bearing seat is bolted the final drive casing top, drive bevel gear is connected with bearing seat by a pair of tapered roller bearing, is bolted by dynamic bevel gear and differential assembly.The reducing gearbox of this kind structure and bearing seat are owing to its top is oversize, and weight ratio is larger, is unfavorable for the car load loss of weight, and can not mutually mate with retarder, and easy and retarder interferes, and is not easy to install retarder.Because the oil channel structure on the existing bearing seat is external protruding oil duct, also can affect the installation of retarder in addition.And if do not install retarder additional, be unfavorable for that vehicle steadily slows down, reduce apply the brakes and the wearing and tearing and the heating that cause, increase the impact on car transmissions, out of reach client's operating needs.
The utility model content
For deficiency of the prior art, the utility model aims to provide the main gearbox assembly on a kind of commercial vehicle/comm..vehicle that improves structure, and it can install retarder additional, realizes that vehicle steadily slows down, and reduces wearing and tearing and the heating of brake system.
In order to address the above problem, this kind commercial vehicle/comm..vehicle main gearbox assembly, comprise: final drive casing, bearing seat, intermeshing drive bevel gear and by dynamic bevel gear, and differential assembly, bearing seat is bolted the final drive casing top, drive bevel gear is connected with bearing seat by a pair of tapered roller bearing, is bolted by dynamic bevel gear and differential assembly;
Characterized by further comprising: retarder; The external profile diameter φ of the top of described final drive casing and bearing seat is 235～260mm; The top of this final drive casing one side is connected with root via the inclined-plane, and this root is vertical with axle house connecting flange; Stator and the bearing seat of retarder are bolted; Rotor and transmission shaft butt flange are bolted.
Preferably, the top of described final drive casing one side and the angle α between the inclined-plane are 130 °～145 °.
Preferably, be provided with the triangle reinforced rib between described root and the axle house connecting flange.
Preferably, be provided with seam between the stator of described retarder and the bearing seat.Described seam diameter is 165～180mm.
More preferably, described bearing seat inside is provided with built-in oil duct, and this built-in oil duct is communicated with the inner chamber of bevel housing.
The utility model also relates to a kind of singl-reduction axle, comprising: wheel limit assembly, axle housing, main gearbox assembly and bonnet; Main gearbox assembly and bonnet are bolted with axle housing respectively, and wheel limit assembly is arranged on the axle housing both sides; It is characterized in that: this main gearbox assembly is the described commercial vehicle/comm..vehicle main gearbox assembly of above-mentioned any one.
Preferably, the cross section of described axle housing is rectangle, and it is of a size of: 160mm * 135mm, wall thickness are 12mm.Described bonnet punching is welded into and its inwall is provided with fil.The described limit assembly of taking turns comprises: wheel hub, semiaxis, brake disc and brake clamp, and wheel hub is connected with semiaxis, brake disc, and brake clamp is assembled on the brake disc, and this semiaxis is hollow half axle.
The beneficial effects of the utility model are: the utility model has considered to install the structure design of retarder interface requirement, by the reducing gearbox in the main gearbox assembly and bearing seat have been carried out profile optimization, realize that retarder is installed in the bridge input shaft end, reduce retarder to the impact of former car driving system.In addition, also the evagination oil duct with existing main deceleration shell and bearing seat is designed to built-in oil duct, just can not affect the installation of retarder stator, satisfies and installs and uses requirement.Can realize steady deceleration after adding retarder, reduce apply the brakes and the wearing and tearing and the heating that cause, and reduce the consumption of brake system, thereby reduce the impact on car transmissions, also satisfy client's demand simultaneously.
Description of drawings
Fig. 1 is the mounting structure schematic diagram of main gearbox assembly of the prior art;
Fig. 2 is the mounting structure schematic diagram of commercial vehicle/comm..vehicle main gearbox assembly of the present utility model;
Fig. 3 is the structural representation that the commercial vehicle/comm..vehicle main gearbox assembly of retarder is installed of the present utility model;
Fig. 4 is the structural representation of singl-reduction axle of the present utility model;
Fig. 5 is the structural representation in axle housing of the present utility model cross section;
Fig. 6 is structural representation of taking turns the limit assembly of the present utility model;
Fig. 7 is semi-axis structure schematic diagram of taking turns in the assembly of limit of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
In conjunction with Fig. 2 and Fig. 3, commercial vehicle/comm..vehicle main gearbox assembly of the present utility model comprises: final drive casing 9, bearing seat 10, intermeshing drive bevel gear 11 and by dynamic bevel gear 12, differential assembly 13 and retarder 20.Differential assembly comprises satellite gear 5, center cross 6, axle side gear 7, reaches differential gear box 8.
The angle α that forms between the top of described final drive casing one side and the inclined-plane 91 is 130 °～145 °.And be provided with triangle reinforced rib 94 between root 92 and the axle house connecting flange 93.And the oil duct that will be arranged on the bearing seat outside changes the oil duct 101 that is arranged on bearing seat inside into, and this built-in oil duct is communicated with the inner chamber of bevel housing.
The utility model has considered to install the structure design of retarder interface requirement, by the reducing gearbox in the main gearbox assembly and bearing seat have been carried out profile optimization, realizes that retarder is installed in the bridge input shaft end, reduces retarder to the impact of former car driving system.By the design of final drive casing cross section and muscle has been strengthened the finishing bevel gear cuter rigidity of support, the analysis means that has utilized transmission to combine with finite element analysis designs housing cross section and muscle, realized light-weight design, the simultaneously improvement in cross section reduces volume read-out.The advantages such as this singl-reduction axle is lightweight, reliability is high, maintenance cost is low, noise is low.In addition, also the evagination oil duct with existing main deceleration shell and bearing seat is designed to built-in oil duct, just can not affect the installation of retarder stator, satisfies and installs and uses requirement.Can realize steady deceleration after adding retarder, reduce apply the brakes and the wearing and tearing and the heating that cause, and reduce the consumption of brake system, thereby reduce the impact on car transmissions, also satisfy client's demand simultaneously.
For the certain air gap that has between the rotor that makes retarder and the stator, guarantee that bearing seat and stator have concentricity, between the stator of described retarder and bearing seat, be provided with seam 10a.Described seam 10a diameter is preferably 165～180mm.
As shown in Figure 4, the utility model also relates to a kind of singl-reduction axle, comprising: wheel limit assembly 1, axle housing 2, above-mentioned main gearbox assembly 3 and bonnet 4.Main gearbox assembly and bonnet are bolted with axle housing respectively, and wheel limit assembly is arranged on the axle housing both sides.
As shown in Figure 5, the cross section of this axle housing 2 is rectangle, is of a size of: 160mm * 135mm, wall thickness are 12mm, and namely length a is 160mm, and width b is 135mm, and thickness h is 12mm.Keeping under the existing intensity, alleviated weight.
As shown in Figure 4,4 punchings of this bonnet are welded into and its inwall is provided with fil 19.The design of rear cover structure can reduce volume read-out, indirectly alleviates whole bridge weight, reduces cost of upkeep.
As shown in Figure 6 and Figure 7, this is taken turns limit assembly 1 and comprises wheel hub 14, semiaxis 15, brake disc 16 and brake clamp 17, and wheel hub 14 is connected with semiaxis 15, brake disc 16, and brake clamp 17 is assembled on the brake disc 16, and this semiaxis 15 is hollow half axle.By the finite element analysis means, axle housing, wheel hub and semiaxis have been carried out light-weight design, weight is lighter, and longer service life.
Claims (10)
1. commercial vehicle/comm..vehicle main gearbox assembly, comprise: final drive casing (9), bearing seat (10), intermeshing drive bevel gear (11) and by dynamic bevel gear (12), and differential assembly (13), bearing seat (10) is bolted final drive casing (9) top, drive bevel gear (11) is connected with bearing seat (10) by a pair of tapered roller bearing, is bolted by dynamic bevel gear (12) and differential assembly (13);
Characterized by further comprising: retarder (20); The external profile diameter φ of the top of described final drive casing (9) and bearing seat (10) is 235～260mm; The top of these final drive casing (9) one sides is connected with root (92) via inclined-plane (91), and this root (92) is vertical with axle house connecting flange (93); The stator of retarder (20a) is bolted with bearing seat; Rotor (20b) is bolted with transmission shaft butt flange (37).
2. commercial vehicle/comm..vehicle main gearbox assembly according to claim 1, it is characterized in that: the angle α between the top of described final drive casing (9) one sides and inclined-plane (91) is 130 °～145 °.
3. commercial vehicle/comm..vehicle main gearbox assembly according to claim 1 is characterized in that: be provided with triangle reinforced rib (94) between described root (92) and the axle house connecting flange (93).
4. commercial vehicle/comm..vehicle main gearbox assembly according to claim 1 is characterized in that: be provided with seam (10a) between the stator of described retarder and the bearing seat.
5. commercial vehicle/comm..vehicle main gearbox assembly according to claim 4, it is characterized in that: described seam (10a) diameter is 165～180mm.
6. commercial vehicle/comm..vehicle main gearbox assembly according to claim 1, it is characterized in that: described bearing seat inside is provided with built-in oil duct (101), and this built-in oil duct is communicated with the inner chamber of bevel housing.
7. a singl-reduction axle comprises: wheel limit assembly (1), axle housing (2), main gearbox assembly (3) and bonnet (4); Main gearbox assembly and bonnet are bolted with axle housing respectively, and wheel limit assembly is arranged on the axle housing both sides; It is characterized in that: this main gearbox assembly (3) is the described commercial vehicle/comm..vehicle main gearbox assembly of claim 1 to 5 any one.
8. singl-reduction axle according to claim 7, it is characterized in that: the cross section of described axle housing (2) is rectangle, and it is of a size of: 160mm * 135mm, wall thickness are 12mm.
9. singl-reduction axle according to claim 7 is characterized in that: described bonnet (4) punching is welded into and its inwall is provided with fil (19).
10. singl-reduction axle according to claim 7, it is characterized in that: the described limit assembly (1) of taking turns comprising: wheel hub (14), semiaxis (15), brake disc (16) and brake clamp (17), wheel hub (14) is connected with semiaxis (15), brake disc (16), brake clamp (17) is assembled on the brake disc (16), and this semiaxis (15) is hollow half axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284928 CN203237061U (en) | 2013-05-23 | 2013-05-23 | Commercial vehicle main speed reducer assembly and single-stage speed reduction drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320284928 CN203237061U (en) | 2013-05-23 | 2013-05-23 | Commercial vehicle main speed reducer assembly and single-stage speed reduction drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203237061U true CN203237061U (en) | 2013-10-16 |
Family
ID=49314386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320284928 Expired - Lifetime CN203237061U (en) | 2013-05-23 | 2013-05-23 | Commercial vehicle main speed reducer assembly and single-stage speed reduction drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203237061U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175892A (en) * | 2013-05-23 | 2014-12-03 | 陕西汉德车桥有限公司 | Commercial vehicle main speed reducer assembly and single-stage speed-reducing driving axle |
| CN104742648A (en) * | 2013-12-26 | 2015-07-01 | 陕西汉德车桥有限公司 | Low floor door type drive axle |
-
2013
- 2013-05-23 CN CN 201320284928 patent/CN203237061U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175892A (en) * | 2013-05-23 | 2014-12-03 | 陕西汉德车桥有限公司 | Commercial vehicle main speed reducer assembly and single-stage speed-reducing driving axle |
| CN104742648A (en) * | 2013-12-26 | 2015-07-01 | 陕西汉德车桥有限公司 | Low floor door type drive axle |
| CN104742648B (en) * | 2013-12-26 | 2017-06-06 | 陕西汉德车桥有限公司 | A kind of low-floor portal drive axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |