CN208842224U - A kind of penetrating bridge main speed reducer assembly - Google Patents
A kind of penetrating bridge main speed reducer assembly Download PDFInfo
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- CN208842224U CN208842224U CN201821200437.XU CN201821200437U CN208842224U CN 208842224 U CN208842224 U CN 208842224U CN 201821200437 U CN201821200437 U CN 201821200437U CN 208842224 U CN208842224 U CN 208842224U
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Abstract
The utility model belongs to automobile repacking field, disclose a kind of penetrating bridge main speed reducer assembly, inter-axle differential front end is arranged in for existing timesharing driving structure, considerably increase the axial dimension of penetrating bridge, it is unfavorable for the arrangement of transmission shaft, inter-axle differential lubricating status preposition simultaneously is extremely bad, and ablation easily occurs in jackshaft input end bearing.The utility model is mounted in drive bevel gear by the way that timesharing driving structure to be arranged in the lower end of inter-axle differential and differential lock and the front end of main reducer of middle axle.The conversion that can either realize 6 × 4 drivings and 6 × 2 drivings, meets the requirement of vehicle timesharing driving, while also solving existing timesharing driving structure complexity, the problem of inter-axle differential insufficient lubrication, repacking property difference.
Description
Technical field
The utility model relates to a kind of penetrating bridge main speed reducer assemblies, belong to automobile repacking field.
Background technique
The tractor or load-carrying vehicle of current 6 × 4 driving, jackshaft is penetrating bridge, and penetrating bridge main speed reducer is mainly by middle rear axle
The composition such as inter-axle differential and differential lock, jackshaft retarder and differential mechanism.When vehicle driving, in, rear axle be driving wheel, can
Bigger driving force is provided, but drive efficiency is low, fuel consumption is big when deadhead operation.
With Automobile Transportation improved efficiency, the development trend of fuel-saving environmental protection, current a variety of vehicles use 4 × 2 drivings, transport
It is high-efficient, but bearing capacity is smaller compared to 6 × 4 vehicles or 6 × 2 vehicles.
Patent document CN102180092B proposes a kind of commercial vehicle through type double-rear-axle time-sharing driving device, for passing through
Logical bridge main reducing gear, provides the conversion of 6 × 4 and 6 × 2 two kinds of drive forms.Its primary structure is to be arranged in inter-axle differential
The front end of jackshaft roller gear, and increase shift fork, tooth set with transition gear structure, by tooth set with axle shaft gear engage with take off
It opens and realizes timesharing driving.This timesharing driving structure is arranged in inter-axle differential front end, considerably increases the axial ruler of penetrating bridge
It is very little, it is unfavorable for the arrangement of transmission shaft, while preposition inter-axle differential lubricating status is extremely bad, jackshaft inputs end bearing easily
There is ablation.In addition the integrated level of the technology is higher, and under same intensity, each element size, weight are big, and structure is complicated, manufacture
It is big with assembly difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of simple penetrating bridge main speed reducer assemblies of structure, realize 6 × 4 drivings
With the conversion of 6 × 2 drivings, meet the requirement of vehicle timesharing driving, while solving existing timesharing driving structure complexity, shaft space difference speed
The problem of device insufficient lubrication, repacking property difference.
The above-mentioned purpose of the utility model is achieved through the following technical solutions:
A kind of novel penetrating bridge main speed reducer assembly, mainly by inter-axle differential and differential lock, timesharing driving structure, to rear
Bridge output end, main reducer of middle axle and jackshaft inter-wheel differential composition.
Inter-axle differential and differential lock are mainly locked into gas-tpe fitting 1, piston I 2, mobile tooth by shaft space difference speed and cover I 3, shift fork
Axis 4, shift fork I 5, active cylindrical gear shaft 6, return spring I 7, end face thrust bearing I 8, active roller gear 9, needle bearing I
10, differential carrier 11, cross axle 12, planetary gear 13, rear bevel gear 14, differential mechanism rear bearing 15, needle bearing II 16, perforation
Axis 18 and differential mechanism fore bearing 20 form.
Wherein, active cylindrical gear shaft 6 inputs flange 19 with penetrating bridge respectively by spline and cross axle 12 is connected,
Front end is supported on retarder front housing 21 by differential mechanism fore bearing 20, and wherein rear end passes through end face thrust bearing I 8, rolling respectively
Needle bearing I 10, needle bearing II 16 are supported on active roller gear 9 and rear bevel gear 14.Mobile tooth set I 3 is pacified by spline
In active cylindrical gear shaft 6.It is machined with fixed tooth on active roller gear 9 and covers I 9-1, and is integrated with preceding bevel gear 9-
2.Cross axle 12 is mounted on four planetary gears 13, and planetary gear 13 is engaged with preceding bevel gear 9-2 and rear bevel gear 14.After bore
Gear 14 is supported in retarder rear shell 17 by differential mechanism rear bearing 15.Perforation axis 18 is supported on axle housing 40 by bearing 41
On, both ends export flange 42 with rear bevel gear 14 and rear axle respectively by spline and connect；
4 both ends of shift fork axle are respectively and fixedly installed to the circular hole on 21 top of 17 upper front end of retarder rear shell and retarder front housing
In, shift fork I 5 is mounted in shift fork axle 4, and leg is inserted into the groove on mobile tooth set I 3, and I 7 sets of return spring in shift fork
On axis 4, between shift fork I 5 and retarder rear shell 17.Piston cylinder I is fixedly mounted on retarder front housing 21；Piston cylinder I with
Shaft space difference speed is locked into gas-tpe fitting 1 and communicates；Piston I 2 is mounted in piston cylinder I；
Timesharing driving structure mainly covers II 24, air inlet pipe fitting 25 by return spring II 22, piston II 23, mobile tooth, dials
Pitch II 26, snap ring 27, adjustment gasket 28, retaining ring 29, end face thrust bearing II 30, driven cylindrical gear 31, needle bearing III 32,
End face thrust bearing 33, locking nut 34, locking plate 35, main deceleration fore bearing 36, main reducing gear rear bearing 38 and drive bevel gear
39 compositions.
39 left end of drive bevel gear is successively machined with spline, groove, cooperation cylindrical surface to right end, covers II with mobile tooth respectively
24, snap ring 27, needle bearing III 32 cooperate.Drive bevel gear 39 passes through main deceleration fore bearing 36, main reducing gear rear bearing 38
On bearing block 37, bearing block 37 is mounted in retarder rear shell 17 for support, and drive bevel gear 39 is locked by locking nut 34, and
Use 35 locking of locking plate.Driven cylindrical gear 31 is supported in drive bevel gear 39 by needle bearing III 32, and passes through end face
Thrust bearing II 30,33 axially position of end face thrust bearing.The front end of end face thrust bearing II 30 is positioned by retaining ring 29, retaining ring
It is positioned by adjustment gasket 28 and snap ring 27.Mobile tooth set II 24 is mounted on the front end of drive bevel gear 39 by spline.
Piston II 23 is mounted in the circular hole of 21 lower section of retarder front housing, and return spring II 22 is mounted on piston II 23
Outside；Circular hole end part seal forms piston cylinder II；Shift fork II 26 is fixedly mounted on II 23 end of piston, the insertion of II 26 leg of shift fork
Into the groove of mobile tooth set II 24.Fixed tooth covers II 31-1 and mobile tooth set II 24 is in normal meshing state.
The left end processing of locking nut 34 is fluted for installing locking plate 35, and right end is machined with cooperation plane and end face thrust
Bearing 33 cooperates.
31 left end of driven cylindrical gear is machined with cooperation plane and end face thrust bearing 33 cooperates, and it is flat that right end is machined with cooperation
Face and end face thrust bearing II 30 cooperate, and middle-end is machined with cooperation cylindrical surface and needle bearing III 32 cooperates.
The utility model has the following beneficial effects:
1, have the function of timesharing driving, by being used cooperatively for inter-axle differential and differential lock and timesharing driving structure,
The conversion that 6 × 4 drivings and 6 × 2 two kinds of forms of driving may be implemented, achievees the effect that timesharing drives.
2, assembly structure is simple, can reequip on the basis of existing drive axle, axial dimension is small, light-weight.
3, inter-axle differential lubrication is good, and structural strength is good, high reliablity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlarged view of the utility model；
Fig. 3 (a) is power transmission line figure when vehicle 6 × 4 drives；
Fig. 3 (b) is power transmission line figure when vehicle 6 × 2 drives.
Specific embodiment
The technical solution of the utility model is explained and illustrated in the form of embodiment with reference to the accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of novel penetrating bridge main speed reducer assembly, mainly by inter-axle differential and differential lock, point
When driving structure, to rear axle output end, main reducer of middle axle and jackshaft inter-wheel differential form.
Inter-axle differential and differential lock are mainly locked into gas-tpe fitting 1, piston I 2, mobile tooth by shaft space difference speed and cover I 3, shift fork
Axis 4, shift fork I 5, active cylindrical gear shaft 6, return spring I 7, end face thrust bearing I 8, active roller gear 9, needle bearing I
10, differential carrier 11, cross axle 12, planetary gear 13, rear bevel gear 14, differential mechanism rear bearing 15, needle bearing II 16, perforation
Axis 18 and differential mechanism fore bearing 20 form.
Wherein, active cylindrical gear shaft 6 inputs flange 19 with penetrating bridge respectively by spline and cross axle 12 is connected,
Front end is supported on retarder front housing 21 by differential mechanism fore bearing 20, and wherein rear end passes through end face thrust bearing I 8, rolling respectively
Needle bearing I 10, needle bearing II 16 are supported on active roller gear 9 and rear bevel gear 14.Mobile tooth set I 3 is pacified by spline
In active cylindrical gear shaft 6.It is machined with fixed tooth set 9-1 on active roller gear 9, and is integrated with preceding bevel gear 9-2.
Cross axle 12 is mounted on four planetary gears 13, and planetary gear 13 is engaged with preceding bevel gear 9-2 and rear bevel gear 14.After bore tooth
Wheel 14 is supported in retarder rear shell 17 by differential mechanism rear bearing 15.Perforation axis 18 is supported on axle housing 40 by bearing 41,
Its both ends exports flange 42 with rear bevel gear 14 and rear axle respectively by spline and connect；
4 both ends of shift fork axle are respectively and fixedly installed to the circular hole on 21 top of 17 upper front end of retarder rear shell and retarder front housing
In, shift fork I 5 is mounted in shift fork axle 4, and leg is inserted into the groove on mobile tooth set I 3, and I 7 sets of return spring in shift fork
On axis 4, between shift fork I 5 and retarder rear shell 17.Piston cylinder I is fixedly mounted on retarder front housing 21；Piston cylinder I with
Shaft space difference speed is locked into gas-tpe fitting 1 and communicates；Piston I 2 is mounted in piston cylinder I；
Timesharing driving structure mainly covers II 24, air inlet pipe fitting 25 by return spring II 22, piston II 23, mobile tooth, dials
Pitch II 26, snap ring 27, adjustment gasket 28, retaining ring 29, end face thrust bearing II 30, driven cylindrical gear 31, needle bearing III 32,
End face thrust bearing 33, locking nut 34, locking plate 35, main deceleration fore bearing 36, main reducing gear rear bearing 38 and drive bevel gear
39 compositions.
39 left end of drive bevel gear is successively machined with spline, groove, cooperation cylindrical surface to right end, covers II with mobile tooth respectively
24, snap ring 27, needle bearing III 32 cooperate.Drive bevel gear 39 passes through main deceleration fore bearing 36, main reducing gear rear bearing 38
On bearing block 37, bearing block 37 is mounted in retarder rear shell 17 for support, and drive bevel gear 39 is locked by locking nut 34, and
Use 35 locking of locking plate.Driven cylindrical gear 31 is supported in drive bevel gear 39 by needle bearing III 32, and passes through end face
Thrust bearing II 30,33 axially position of end face thrust bearing.The front end of end face thrust bearing II 30 is positioned by retaining ring 29, retaining ring
It is positioned by adjustment gasket 28 and snap ring 27.Mobile tooth set II 24 is mounted on the front end of drive bevel gear 39 by spline.
Piston II 23 is mounted in the circular hole of 21 lower section of retarder front housing, and return spring II 22 is mounted on piston II 23
Outside；Circular hole end part seal forms piston cylinder II；Shift fork II 26 is fixedly mounted on II 23 end of piston, the insertion of II 26 leg of shift fork
Into the groove of mobile tooth set II 24.Fixed tooth covers II 31-1 and mobile tooth set II 24 is in normal meshing state.
The left end processing of locking nut 34 is fluted for installing locking plate 35, and right end is machined with cooperation plane and end face thrust
Bearing 33 cooperates.
31 left end of driven cylindrical gear is machined with cooperation plane and end face thrust bearing 33 cooperates, and it is flat that right end is machined with cooperation
Face and end face thrust bearing II 30 cooperate, and middle-end is machined with cooperation cylindrical surface and needle bearing III 32 cooperates.
Working principle:
As shown in Fig. 3 (a), when vehicle needs 6 × 4 drive mode, driver is not necessarily to special operation, timesharing driving structure
In mobile tooth set II 24 cover II 31-1 with fixed tooth and be in meshing state always, i.e. timesharing driving structure combines.Driver can
To control whether between centers differential lock engages according to road surface needs.At this point, power passes to actively circle through penetrating bridge input flange 19
Stud wheel axis 6, cross axle 12, bevel gear 9-2 bevel gear 14 with after, passes to before being delivered separately to after inter-axle differential point is turned round
The power of preceding bevel gear 9-2 through active roller gear 9, driven cylindrical gear 31, fixed tooth cover II 31-1, mobile tooth set II 24,
Drive bevel gear 39 is transmitted to main reducer of middle axle, distributes to the left and right wheels of jackshaft after deceleration torque increase through jackshaft differential；It passes
The power for passing rear bevel gear 14 is exported flange 42 and is transported to rear axle by penetrating through axis 18.
As shown in Figure 3 (b), when vehicle needs 6 × 2 drive mode, driver operates the change-over switch in driver's cabin, this
When compressed air the air inlet pipe 25 of timesharing driving structure can be arrived separately at by vehicle pipeline and shaft space difference speed is locked at tracheae 1,
It pushes piston II 23 and piston I 2 mobile, under the drive of shift fork II 26 and shift fork I 5, makes mobile tooth set II 24 and fixed tooth set
II 31-1 separation, mobile tooth set I 3 and fixed tooth cover I 9-1 and combine, i.e., timesharing driving structure disengages, shaft space difference speed locks locking.It is dynamic
Power passes to active cylindrical gear shaft 6, mobile tooth set I 3, fixed tooth through penetrating bridge input flange 19 and covers I 9-1, through active cylinder
Gear 9, planetary gear 13, rear bevel gear 14, perforation axis 18 are transported to rear axle by exporting flange 42.
Claims (3)
1. a kind of penetrating bridge main speed reducer assembly, which is characterized in that the assembly is mainly driven by inter-axle differential and differential lock, timesharing
Dynamic structure is formed to rear axle output end, main reducer of middle axle and jackshaft inter-wheel differential；
Inter-axle differential and differential lock are mainly locked into gas-tpe fitting (1) by shaft space difference speed, piston I (2), I (3) of mobile tooth set, dial
Fork shaft (4), shift fork I (5), active cylindrical gear shaft (6), return spring I (7), end face thrust bearing I (8), active roller gear
(9), after needle bearing I (10), differential carrier (11), cross axle (12), planetary gear (13), rear bevel gear (14), differential mechanism
Bearing (15), needle bearing II (16), perforation axis (18) and differential mechanism fore bearing (20) composition；
Wherein, active cylindrical gear shaft (6) is connected with penetrating bridge input flange (19) and cross axle (12) respectively by spline,
Its front end is supported on retarder front housing (21) by differential mechanism fore bearing (20), and wherein rear end passes through end face thrust bearing respectively
I (8), needle bearing I (10), needle bearing II (16) are supported on active roller gear (9) and rear bevel gear (14)；Mobile tooth
I (3) of set are mounted on active cylindrical gear shaft (6) by spline；It is machined with fixed tooth on active roller gear (9) and covers I (9-
1), and it is integrated with preceding bevel gear (9-2)；Cross axle (12) is mounted on four planetary gears (13), planetary gear (13) with
Preceding bevel gear (9-2) and rear bevel gear (14) engagement；Bevel gear (14) is supported on retarder by differential mechanism rear bearing (15) afterwards
In rear shell (17)；Perforation axis (18) is supported on axle housing (40) by bearing (41), both ends by spline respectively with rear cone tooth
Take turns (14) and rear axle output flange (42) connection；
Shift fork axle (4) both ends are respectively and fixedly installed to the circle of retarder rear shell (17) upper front end and retarder front housing (21) top
Kong Zhong, shift fork I (5) are mounted on shift fork axle (4), and leg is inserted into the groove that mobile tooth covers on I (3), return spring I
(7) it covers on shift fork axle (4), between shift fork I (5) and retarder rear shell (17)；Before piston cylinder I is fixedly mounted on retarder
On shell (21)；Piston cylinder I is locked into gas-tpe fitting (1) with shaft space difference speed and communicates；Piston I (2) is mounted in piston cylinder I；
Timesharing driving structure mainly covers II (24), air inlet pipe fitting by return spring II (22), piston II (23), mobile tooth
(25), shift fork II (26), snap ring (27), adjustment gasket (28), retaining ring (29), end face thrust bearing II (30), driven Cylinder Gear
Take turns (31), needle bearing III (32), end face thrust bearing III (33), locking nut (34), locking plate (35), main deceleration fore bearing
(36), main reducing gear rear bearing (38) and drive bevel gear (39) composition；
Drive bevel gear (39) left end is successively machined with spline, groove, cooperation cylindrical surface to right end, covers II with mobile tooth respectively
(24), snap ring (27), needle bearing III (32) cooperation；Drive bevel gear (39) passes through main deceleration fore bearing (36), main reducing gear
Rear bearing (38) is supported on bearing block (37), and bearing block (37) is mounted on retarder rear shell (17), drive bevel gear (39)
It is locked by locking nut (34), and uses locking plate (35) locking；Driven cylindrical gear (31) is propped up by needle bearing III (32)
Support passes through end face thrust bearing II (30), end face thrust bearing III (33) axially position on drive bevel gear (39)；End face
The front end of thrust bearing II (30) is positioned by retaining ring (29), and retaining ring is positioned by adjustment gasket (28) and snap ring (27)；Mobile tooth
II (24) of set are mounted on the front end of drive bevel gear (39) by spline；
Piston II (23) is mounted in the circular hole below retarder front housing (21), and return spring II (22) is mounted on piston II (23)
Outside；Circular hole end part seal forms piston cylinder；Shift fork II (26) is fixedly mounted on piston II (23) end, shift fork II (26) leg
Portion is inserted into mobile tooth and covers in the groove of II (24)；Fixed tooth II (31-1) of set is in II (24) of mobile tooth set and often engages shape
State.
2. penetrating bridge main speed reducer assembly according to claim 1, which is characterized in that the left end of locking nut (34) processes
Fluted to be used to install locking plate (35), right end is machined with cooperation plane and end face thrust bearing III (33) cooperates.
3. penetrating bridge main speed reducer assembly according to claim 1, which is characterized in that driven cylindrical gear (31) left end adds
Work has cooperation plane and end face thrust bearing III (33) to cooperate, and right end is machined with cooperation plane and matches with end face thrust bearing II (30)
It closes, middle-end is machined with cooperation cylindrical surface and needle bearing III (32) cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200437.XU CN208842224U (en) | 2018-07-27 | 2018-07-27 | A kind of penetrating bridge main speed reducer assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200437.XU CN208842224U (en) | 2018-07-27 | 2018-07-27 | A kind of penetrating bridge main speed reducer assembly |
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| Publication Number | Publication Date |
|---|---|
| CN208842224U true CN208842224U (en) | 2019-05-10 |
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|---|---|---|---|
| CN201821200437.XU Active CN208842224U (en) | 2018-07-27 | 2018-07-27 | A kind of penetrating bridge main speed reducer assembly |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017291A (en) * | 2018-07-27 | 2018-12-18 | 汽解放汽车有限公司 | A kind of penetrating bridge main speed reducer assembly |
| CN110748622A (en) * | 2019-10-17 | 2020-02-04 | 一汽解放汽车有限公司 | Middle axle main reducer assembly with rear bevel gear clutch mechanism |
| CN110816169A (en) * | 2019-09-02 | 2020-02-21 | 一汽解放汽车有限公司 | Rear drive axle bearing block assembly |
| CN111845334A (en) * | 2020-07-16 | 2020-10-30 | 北京福田戴姆勒汽车有限公司 | Vehicle with a steering wheel |
| CN112576718A (en) * | 2020-11-04 | 2021-03-30 | 东风越野车有限公司 | High-power full-time transfer case differential mechanism and vehicle |
-
2018
- 2018-07-27 CN CN201821200437.XU patent/CN208842224U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109017291A (en) * | 2018-07-27 | 2018-12-18 | 汽解放汽车有限公司 | A kind of penetrating bridge main speed reducer assembly |
| CN110816169A (en) * | 2019-09-02 | 2020-02-21 | 一汽解放汽车有限公司 | Rear drive axle bearing block assembly |
| CN110748622A (en) * | 2019-10-17 | 2020-02-04 | 一汽解放汽车有限公司 | Middle axle main reducer assembly with rear bevel gear clutch mechanism |
| CN110748622B (en) * | 2019-10-17 | 2021-10-01 | 一汽解放汽车有限公司 | Middle axle main reducer assembly with rear bevel gear clutch mechanism |
| CN111845334A (en) * | 2020-07-16 | 2020-10-30 | 北京福田戴姆勒汽车有限公司 | Vehicle with a steering wheel |
| CN112576718A (en) * | 2020-11-04 | 2021-03-30 | 东风越野车有限公司 | High-power full-time transfer case differential mechanism and vehicle |
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