CN102774239A - Front steering drive axle assembly - Google Patents
Front steering drive axle assembly Download PDFInfo
- Publication number
- CN102774239A CN102774239A CN2012102599615A CN201210259961A CN102774239A CN 102774239 A CN102774239 A CN 102774239A CN 2012102599615 A CN2012102599615 A CN 2012102599615A CN 201210259961 A CN201210259961 A CN 201210259961A CN 102774239 A CN102774239 A CN 102774239A
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- wheel
- reduction gear
- axle
- axle housing
- steering
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Abstract
The invention discloses a front steering drive axle assembly which comprises an axle housing (1), hubs (7), a main speed reducer belt differential assembly and wheel rim speed reducers, wherein the axle housing is provided with a balance pin hole (21) connected with a vehicle chassis; the two hubs are connected to the left end and the right end of the axle housing by hub steering structures (3); the middle part of the axle housing is provided with a cavity; the main speed reducer belt differential assembly is arranged inside the cavity; each of the two sides of the main speed reducer belt differential assembly is connected with a driving shaft (6) in a rotating mode; the driving shafts are rotatably connected with the wheel rim speed reducers on the two ends of the axle housing; the axle housing is provided with a wheel steering drive device (4); the wheel steering drive device is respectively connected with the hub steering structures of the two hubs; the section of the axle housing is in a cavity structure in a square shape; the edge of a planet wheel axle (15) is provided with a small hole (30); a wheel rim speed reducer (11) is correspondingly provided with a sinking slot (31); an anti-shifting ball (19) is installed between the hole and the slot; and the outmost side of the wheel rim speed reducer shell is provided with an end cover (20).
Description
Technical field
The present invention relates to a kind of preceding steering drive axle assembly.
Background technology
Along with the lasting propelling of national urbanization construction and capital construction, the producing and selling of construction machinery and equipment, field machine there is tangible promotion, particularly the volume of production and marketing of large-tonnage backhoe loader and large tractor rises obviously.Simultaneously, the technical merit of field machines such as construction machinery and equipment, trac., manufacturing process etc. have all had significant progress, and the type of the form of employing four wheel drive is more and more general.Requirements for quality to complete machine has also proposed higher demand simultaneously.
The work under bad environment of construction machinery and equipment, farm machinery has higher requirements to the reliability and the crossing ability of complete machine.Adopt the type of four wheel drive to become trend.
The vehicle bridge deadweight of using at present is bigger, and load-carrying capacity is little, and can occur the leakage of oil of wheel reduction gear place because structure is not compact or take turns the problem that limit planetary wheel damage etc. influences mechanical quality.
Summary of the invention
It is bigger to the purpose of this invention is to provide a kind of load-carrying capacity, and compact conformation, prevents the preceding steering drive axle assembly of wheel reduction gear leakage of oil.
For solving above-mentioned purpose, technical scheme of the present invention is:
Steering drive axle assembly before a kind of comprises axle housing, two wheel hubs, main reduction gear band differential assembly and wheel reduction gears; Said axle housing is a girder structure; Which is provided with and vehicle chassis bonded assembly pendulum pin-and-hole; Two wheel hubs are connected the right ends of axle housing through the wheel hub steering structure, and said axle housing middle part is provided with cavity, and main reduction gear band differential assembly is installed in it; The said main reduction gear band differential assembly both sides axle drive shaft that respectively is rotationally connected, drive shaft turns connects the wheel reduction gear at axle housing two ends; Said axle housing is provided with the wheel steering actuating device, and this wheel steering actuating device is connected with the wheel hub steering structure of two wheel hubs respectively;
Said wheel reduction gear comprises wheel reduction gear shell, planetary wheel and the planet wheel spindle that is installed on the wheel hub, and wheel reduction gear shell inner chamber is provided with the gear ring by the gear ring stent support, and the gear ring support is fixedly mounted on the axle housing; Said planetary wheel is installed on the planet wheel spindle that is fixed on the wheel reduction gear shell, and meshes with gear ring and axle drive shaft;
Said axle housing section is " mouth " font cavity structure, and axle drive shaft connects the main reduction gear band differential assembly and the wheel reduction gear at two ends through " mouth " font cavity; Said planet wheel spindle edge has aperture, and the cooresponding deep gouge that has of wheel reduction gear shell is installed anti-play ball between hole and the groove; The outermost of said wheel reduction gear shell is provided with end cap.
Beneficial effect is the deadweight that the section of " mouth " font has not only reduced propons, and can improve the bearing load and the through performance that improves car load of whole bridge; And the anti-play ball between planet wheel spindle and the wheel reduction gear shell has solved the problem of the inside play of planet wheel spindle; The end cap of wheel reduction gear shell outermost end has solved the problem of the outside play of planet wheel spindle, and planet wheel spindle can not just the problem of wheel reduction gear leakage of oil can not take place by inside and outside play; Steering drive axle assembly carries out the one-level deceleration by main reduction gear band differential assembly earlier before the present invention, carries out double reduction by wheel reduction gear again, can obtain bigger reduction ratio and bigger output torque; Steering drive axle assembly is used as steeraxle and drive axle simultaneously before the present invention.
As further improvement of the present invention, said wheel steering actuating device is to turn to oil cylinder, turns to oil cylinder through the steering track rod steering swivel that is rotationally connected.Steering track rod drives steering swivel and rotates, and realizes turning to function.
Further improve as of the present invention, said axle housing inblock cast forms.Cast applied widelyly, can guarantee the requirement of dimensional accuracy, simultaneously with low cost, comprehensive economic performance is good.
In sum, the invention has the beneficial effects as follows: load-carrying capacity is big, and output torque is big, and is simple in structure, easy installation and removal.
Description of drawings
Fig. 1 is the scheme drawing of steering drive axle assembly before the present invention.
Fig. 2 is that the P of Fig. 1 is to view.
Fig. 3 is a steering drive axle assembly end construction scheme drawing before the present invention.
Fig. 4 is the scheme drawing of steering drive axle assembly main reduction gear band differential assembly before the present invention.
Fig. 5 is the scheme drawing of steering drive axle assembly axle drive shaft before the present invention.
The specific embodiment
Do further explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Like Fig. 1 steering drive axle assembly to the present invention shown in Figure 5, comprise axle housing 1, two wheel hubs 7, main reduction gear band differential assembly and wheel reduction gears; Said axle housing 1 is the cast-in-block girder structure; Which is provided with and vehicle chassis bonded assembly pendulum pin-and-hole 21; Two wheel hubs 7 are connected the right ends of axle housing 1 through wheel hub steering structure 3, and said axle housing 1 middle part is provided with cavity, and main reduction gear band differential assembly is installed in it; The be rotationally connected wheel reduction gear at axle housing 1 two ends of the said main reduction gear band differential assembly both sides axle drive shaft 6 that respectively is rotationally connected, axle drive shaft 6; Said axle housing 1 is provided with wheel steering actuating device 4, and this wheel steering actuating device 4 is connected with the wheel hub steering structure 3 of two wheel hubs 7 respectively; Said wheel steering actuating device 4 is to turn to oil cylinder, turns to oil cylinder through steering track rod 5 steering swivel that is rotationally connected.
Said wheel hub steering structure 3 is steering swivels, and steering swivel is connected through tapered roller bearing 8 with wheel hub 7, also is provided with backing pin 9 and 10, two backing pins of following backing pin on the steering swivel in opposite directions and coaxial; The right ends of axle housing 1 is equipped with backing pin installing blind 22 and following backing pin installing blind 23, and the said backing pin installing blind 22 of going up is rotationally connected through needle bearing 16 and last backing pin 9, and following backing pin installing blind 23 is rotationally connected through oscillating bearing 17 and following backing pin 10.
Said main reduction gear band differential assembly comprise the taper driving gear 24 that is used to change moment of torsion and with its ingear ring gear 25, two planetary wheels 27 and the axle-shaft gear 26 that is meshed with two planetary wheels 27; As shown in Figure 4, taper driving gear 24 holds 35 through main pinion and is installed on the final drive casing 36, and final drive casing 36 is fixedly mounted on the axle housing 1; Planetary wheel 27 is installed on the differential gear box 33 by compensating-gear shaft 32; Compensating-gear shaft 32 usefulness bearing pins 40 are fixed on the differential gear box 33, prevent that compensating-gear shaft 32 and differential gear box 33 from rotating, and differential gear box 33 is fixed on the main deceleration shell 36 through differential bearing 34; Axle-shaft gear 26 is installed in the differential gear box 33; There is spline axle-shaft gear 26 inside, and there is the spline that cooperates with axle-shaft gear 26 axle drive shaft 6 front end outsides, and differential bearing 34 outer rings are installed on the final drive casing 36; Inner ring is installed on the differential gear box 33, realizes that differential gear box 33 relative final drive casings 36 rotate; Axle drive shaft 6 near main reduction gear band differential assembly one end is provided with the gear teeth, and is meshed with the differential gear box 33 interior gear teeth; Ring gear 25 is installed on the differential gear box 33 through bolt, and the moment of torsion on the taper driving gear 24 is passed to the axle drive shaft 6 of both sides and realizes differential function.
Said wheel reduction gear comprises wheel reduction gear shell 11, planetary wheel 14 and the planet wheel spindle 15 that is installed on the wheel hub 7; Wheel reduction gear shell 11 inner chambers are provided with the gear ring 12 that is supported by gear ring support 13, and said planetary wheel 14 is installed on the planet wheel spindle 15 through needle roller 18, and mesh with gear ring 12 and axle drive shaft 6; Planet wheel spindle 15 is installed through interference fit with wheel reduction gear shell 11; Because planet wheel spindle 15 is installed through interference fit with wheel reduction gear shell 11, in use, because planetary wheel 14 is stressed; The magnitude of interference of planet wheel spindle 15 and wheel reduction gear shell 11 designs irrational situation lower planet wheel shaft 15 can cause wheel limit leakage of oil or planetary wheel 14 damages of wheel limit by the generation end float misalignments; Saidly have aperture 30 at planet wheel spindle 15 edges, the wheel reduction gear shell 11 cooresponding deep gouges 31 that have are installed anti-play ball 19 between hole and the groove; Prevent planet wheel spindle 15 inside plaies; Outermost at wheel reduction gear shell 11 is provided with end cap 20, prevents planet wheel spindle 15 outside plaies, and the planet wheel spindle 15 no longer play thing that also just no longer includes leakage of oil takes place.
Said axle drive shaft 6 is divided into two sections in axle housing 1 outer ends, and has constant-velocity universal joint 29 to connect, and is as shown in Figure 5.
Said axle housing 1 section is " mouth " font cavity structure, when reducing weight, improves whole bridge bearing load, and axle drive shaft 6 connects the main reduction gear band differential assembly and the wheel reduction gear at two ends through " mouth " font cavity.
As shown in Figure 4; Taper driving gear 24 left sides are provided with the ring gear 25 that is meshed with taper driving gear 24; Drive ring gear 25 when taper driving gear 24 rotates and rotate, and moment of torsion is passed to the axle drive shaft 6 of and arranged on left and right sides, because taper driving gear 24 is different with the number of teeth of ring gear 25 with differential gear box 33; Thereby realize the reduction of rotating speed, increase output torque simultaneously.As shown in Figure 3; Axle drive shaft 6 is steady with power through constant-velocity universal joint 29, failure-free is passed to wheel reduction gear; Wheel reduction gear by three planet wheel spindles 15 with three planetary wheels 14 be fixed on axle drive shaft 6 around, axle drive shaft 6 is positioned at the middle part of three planetary wheels 14, three planetary wheels 14 are meshed with axle drive shaft 6; Axle drive shaft 6 drives planetary wheel 14 and rotates; Planetary wheel 14 has and drives the trend that gear ring 12 rotates, but gear ring 12 is installed on the gear ring support 13, and gear ring support 13 is installed on the axle housing 1 through screw and in fact can not rotates for connecting element; So can only be that axle drive shaft 6 is being with 11 revolution of wheel reduction gear shell in rotation, wheel reduction gear shell 11 drives wheel hub 7 and realizes vehicle to overtake.
When turning to, turn to the rotation of oil cylinder 4, thereby realize turning to of vehicle through pulling and promotion steering track rod 5 control steering swivels 3.
During straight-line travelling, the rotating speed of both sides wheel is consistent to complete machine in the smooth-riding surface, and diff is inoperative; When complete machine turns round or uneven road surface when going, the rotating speed of both sides wheel is inconsistent, and this moment, diff worked.
Claims (3)
1. steering drive axle assembly before a kind comprises axle housing (1), two wheel hubs (7), main reduction gear band differential assembly and wheel reduction gear; Said axle housing (1) is a girder structure; Which is provided with and vehicle chassis bonded assembly pendulum pin-and-hole (21); Two wheel hubs (7) are connected the right ends of axle housing (1) through wheel hub steering structure (3), and said axle housing (1) middle part is provided with cavity, and main reduction gear band differential assembly is installed in it; The be rotationally connected wheel reduction gear at axle housing (1) two ends of the said main reduction gear band differential assembly both sides axle drive shaft (6) that respectively is rotationally connected, axle drive shaft (6); Said axle housing (1) is provided with wheel steering actuating device (4), and this wheel steering actuating device (4) is connected with the wheel hub steering structure (3) of two wheel hubs (7) respectively;
Said wheel reduction gear comprises wheel reduction gear shell (11), planetary wheel (14) and the planet wheel spindle (15) that is installed on the wheel hub (7); Wheel reduction gear shell (11) inner chamber is provided with the gear ring (12) that is supported by gear ring support (13), and gear ring support (13) is fixedly mounted on the axle housing (1); Said planetary wheel (14) is installed on the planet wheel spindle (15) that is fixed on the wheel reduction gear shell (11), and meshes with gear ring (12) and axle drive shaft (6);
It is characterized in that: said axle housing (1) section is " mouth " font cavity structure, and axle drive shaft (6) connects the main reduction gear band differential assembly and the wheel reduction gear at two ends through " mouth " font cavity; Said planet wheel spindle (15) edge has aperture (30), and the cooresponding deep gouge (31) that has of wheel reduction gear shell (11) is installed anti-play ball (19) between hole and the groove; The outermost of said wheel reduction gear shell (11) is provided with end cap (20).
2. steering drive axle assembly before according to claim 1, it is characterized in that: said wheel steering actuating device (4) is to turn to oil cylinder, turns to oil cylinder to pass through steering track rod (5) steering swivel that is rotationally connected.
3. steering drive axle assembly before according to claim 1, it is characterized in that: said axle housing (1) inblock cast forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102599615A CN102774239B (en) | 2012-07-25 | 2012-07-25 | Front steering drive axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102599615A CN102774239B (en) | 2012-07-25 | 2012-07-25 | Front steering drive axle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102774239A true CN102774239A (en) | 2012-11-14 |
| CN102774239B CN102774239B (en) | 2013-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102599615A Active CN102774239B (en) | 2012-07-25 | 2012-07-25 | Front steering drive axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102774239B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2927023A2 (en) * | 2013-12-20 | 2015-10-07 | JC Bamford Excavators Limited | Support casing for a differential gear of an axle and track rod assembly |
| CN108657195A (en) * | 2017-03-30 | 2018-10-16 | 比亚迪股份有限公司 | Front driving axle assembly and the chassis with it, rail traffic vehicles |
| CN109070631A (en) * | 2016-03-04 | 2018-12-21 | 戈尔德霍弗股份公司 | Commercial vehicle, especially heavy vehicle and car wheel structure sub-assembly for such commercial vehicle |
| CN111716959A (en) * | 2020-06-29 | 2020-09-29 | 肥城市宇通机械有限公司 | Rear steering drive axle of cross-country forklift |
| CN114228401A (en) * | 2021-12-14 | 2022-03-25 | 浙江林德车桥有限公司 | Steering drive axle for forklift |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090145683A1 (en) * | 2007-12-07 | 2009-06-11 | Szczepanski Gerald S | Adjusting and Maintaining Bearing Preload in an Axle Assembly |
| CN101774334A (en) * | 2010-02-26 | 2010-07-14 | 重庆大江工业有限责任公司 | Through drive axle with hyperboloid bevel gear |
| CN201677697U (en) * | 2009-11-15 | 2010-12-22 | 徐工集团工程机械股份有限公司科技分公司 | New type wet drive axle used in engineering machinery |
| CN102343809A (en) * | 2011-07-24 | 2012-02-08 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Hub reduction device for mining dump truck with electric wheels |
| CN202669391U (en) * | 2012-07-25 | 2013-01-16 | 南京创捷和信汽车零部件有限公司 | Front steering drive axle assembly |
-
2012
- 2012-07-25 CN CN2012102599615A patent/CN102774239B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090145683A1 (en) * | 2007-12-07 | 2009-06-11 | Szczepanski Gerald S | Adjusting and Maintaining Bearing Preload in an Axle Assembly |
| CN201677697U (en) * | 2009-11-15 | 2010-12-22 | 徐工集团工程机械股份有限公司科技分公司 | New type wet drive axle used in engineering machinery |
| CN101774334A (en) * | 2010-02-26 | 2010-07-14 | 重庆大江工业有限责任公司 | Through drive axle with hyperboloid bevel gear |
| CN102343809A (en) * | 2011-07-24 | 2012-02-08 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Hub reduction device for mining dump truck with electric wheels |
| CN202669391U (en) * | 2012-07-25 | 2013-01-16 | 南京创捷和信汽车零部件有限公司 | Front steering drive axle assembly |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2927023A2 (en) * | 2013-12-20 | 2015-10-07 | JC Bamford Excavators Limited | Support casing for a differential gear of an axle and track rod assembly |
| EP2927023A3 (en) * | 2013-12-20 | 2016-03-23 | JC Bamford Excavators Ltd | Support casing for a differential gear of an axle and track rod assembly |
| US9770946B2 (en) | 2013-12-20 | 2017-09-26 | Jc Bamford Excavators Limited | Support casing for a differential gear of an axle and track rod assembly |
| CN109070631A (en) * | 2016-03-04 | 2018-12-21 | 戈尔德霍弗股份公司 | Commercial vehicle, especially heavy vehicle and car wheel structure sub-assembly for such commercial vehicle |
| US11285758B2 (en) | 2016-03-04 | 2022-03-29 | Goldhofer Ag | Commercial vehicle, in particular heavy-duty vehicle, and wheel assembly for such a commercial vehicle |
| CN109070631B (en) * | 2016-03-04 | 2022-05-13 | 戈尔德霍弗股份公司 | Commercial vehicle and wheel structure assembly for a commercial vehicle |
| CN108657195A (en) * | 2017-03-30 | 2018-10-16 | 比亚迪股份有限公司 | Front driving axle assembly and the chassis with it, rail traffic vehicles |
| CN111716959A (en) * | 2020-06-29 | 2020-09-29 | 肥城市宇通机械有限公司 | Rear steering drive axle of cross-country forklift |
| CN114228401A (en) * | 2021-12-14 | 2022-03-25 | 浙江林德车桥有限公司 | Steering drive axle for forklift |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102774239B (en) | 2013-12-04 |
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