CN102774239B - Front steering drive axle assembly - Google Patents
Front steering drive axle assembly Download PDFInfo
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- CN102774239B CN102774239B CN2012102599615A CN201210259961A CN102774239B CN 102774239 B CN102774239 B CN 102774239B CN 2012102599615 A CN2012102599615 A CN 2012102599615A CN 201210259961 A CN201210259961 A CN 201210259961A CN 102774239 B CN102774239 B CN 102774239B
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- reduction gear
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- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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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 front 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 are had to obvious promotion, particularly the volume of production and marketing of large-tonnage backhoe loader and large tractor rises obviously.Simultaneously, the technical merit of the 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.The requirements for quality of complete machine also proposed to higher demand simultaneously.
The work under bad environment of construction machinery and equipment, farm machinery, have higher requirements to 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 larger, and load-carrying capacity is little, and because structure is not compact, there will be the leakage of oil of wheel reduction gear place or wheel limit planetary wheel damage etc. to affect the problem of mechanical quality.
Summary of the invention
The purpose of this invention is to provide a kind of load-carrying capacity larger, and compact conformation, prevent the front steering drive axle assembly of wheel reduction gear leakage of oil.
For solving above-mentioned purpose, technical scheme of the present invention is:
A kind of front steering drive axle assembly, comprise axle housing, two wheel hubs, main reduction gear band differential assembly and wheel reduction gears; Described axle housing is girder structure, which is provided with the pendulum pin-and-hole be connected with vehicle chassis, two wheel hubs are connected to the two ends, left and right of axle housing by the wheel hub steering structure, described axle housing middle part is provided with cavity, main reduction gear band differential assembly is installed in it, described main reduction gear band differential assembly both sides respectively are rotationally connected an axle drive shaft, and drive shaft turns connects the wheel reduction gear at axle housing two ends; Described axle housing is provided with wheel steering drive device, and this wheel steering drive device is connected with the wheel hub steering structure of two wheel hubs respectively;
Described wheel reduction gear comprises hub reducer casing, planetary wheel and the planet wheel spindle be arranged on wheel hub, and the hub reducer casing inner chamber is provided with the gear ring supported by gear ring support, and gear ring support is fixedly mounted on axle housing; Described planetary wheel is arranged on the planet wheel spindle be fixed on hub reducer casing, and meshes with gear ring and axle drive shaft;
Described axle housing section is " mouth " font cavity structure, and axle drive shaft connects main reduction gear band differential assembly and the wheel reduction gear at two ends by " mouth " font cavity; Described planet wheel spindle edge has aperture, and hub reducer casing is corresponding has deep gouge, and the Anti-moving ball is installed between aperture and deep gouge; The outermost of described hub reducer casing 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 performance of passing through that improves car load of whole bridge; And the Anti-moving ball between planet wheel spindle and hub reducer casing has solved the problem of the inside play of planet wheel spindle, the end cap of hub reducer casing outermost end has solved the problem of the outside play of planet wheel spindle, and planet wheel spindle can just the problem of wheel reduction gear leakage of oil can not occur by inside and outside play; Front steering drive axle assembly of the present invention first carries out primary speed-down by main reduction gear band differential assembly, then carries out double reduction by wheel reduction gear, can obtain larger reduction ratio and larger output torque; Front steering drive axle assembly of the present invention is used as steeraxle and drive axle simultaneously.
As a further improvement on the present invention, described wheel steering drive device is steering cylinder, and steering cylinder is rotationally connected steering swivel by steering track rod.Steering track rod drives steering swivel and rotates, and realizes turning function.
As of the present invention, further improve, described 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 large, and output torque is large, simple in structure, easy installation and removal.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of front steering drive axle assembly of the present invention.
Fig. 2 is that the P of Fig. 1 is to view.
Fig. 3 is front steering drive axle assembly end construction schematic diagram of the present invention.
Fig. 4 is the schematic diagram of front steering drive axle assembly main reduction gear band differential assembly of the present invention.
Fig. 5 is the schematic diagram of front steering drive axle assembly axle drive shaft of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Front steering drive axle assembly of the present invention as shown in Figures 1 to 5, comprise axle housing 1, two wheel hubs 7, main reduction gear band differential assembly and wheel reduction gears; Described axle housing 1 is the cast-in-block girder structure, which is provided with the pendulum pin-and-hole 21 be connected with vehicle chassis, two wheel hubs 7 are connected to the two ends, left and right of axle housing 1 by wheel hub steering structure 3, described axle housing 1 middle part is provided with cavity, main reduction gear band differential assembly is installed in it, described main reduction gear band differential assembly both sides respectively are rotationally connected an axle drive shaft 6, and axle drive shaft 6 is rotationally connected the wheel reduction gear at axle housing 1 two ends; Described axle housing 1 is provided with wheel steering drive device 4, and this wheel steering drive device 4 is connected with the wheel hub steering structure 3 of two wheel hubs 7 respectively; Described wheel steering drive device 4 is steering cylinders, and steering cylinder is rotationally connected steering swivel by steering track rod 5.
Described wheel hub steering structure 3 is steering swivels, and steering swivel is connected by tapered roller bearing 8 with wheel hub 7, also is provided with backing pin 9 and 10, two backing pins of lower backing pin on steering swivel in opposite directions and coaxial; The two ends, left and right of axle housing 1 are equipped with backing pin installing blind 22 and lower backing pin installing blind 23, and described upper backing pin installing blind 22 is rotationally connected by needle bearing 16 and upper backing pin 9, and lower backing pin installing blind 23 is rotationally connected by oscillating bearing 17 and lower backing pin 10.
Described main reduction gear band differential assembly comprise taper driving gear 24 for changing moment of torsion and with the ring gear 25 of its engagement, two planetary wheels 27 and the axle-shaft gear 26 be meshed with two planetary wheels 27, as shown in Figure 4, taper driving gear 24 holds 35 by main pinion and is arranged on final drive casing 36, final drive casing 36 is fixedly mounted on axle housing 1, planetary wheel 27 is arranged on differential gear box 33 by compensating-gear shaft 32, compensating-gear shaft 32 use bearing pins 40 are fixed on differential gear box 33, prevent that compensating-gear shaft 32 and differential gear box 33 from rotating, differential gear box 33 is fixed on main deceleration shell 36 by differential bearing 34, axle-shaft gear 26 is arranged in differential gear box 33, there is spline axle-shaft gear 26 inside, there is the spline coordinated with axle-shaft gear 26 axle drive shaft 6 front end outsides, differential bearing 34 outer rings are arranged on final drive casing 36, inner ring is arranged on differential gear box 33, realize that differential gear box 33 rotates relative to final drive casing 36, axle drive shaft 6 near main reduction gear band differential assembly one end is provided with the gear teeth, and is meshed with the gear teeth in differential gear box 33, ring gear 25 is mounted by means of bolts on differential gear box 33, and the moment of torsion on taper driving gear 24 is passed to the axle drive shaft 6 of both sides and realizes differential function.
Described wheel reduction gear comprises the hub reducer casing 11 be arranged on wheel hub 7, planetary wheel 14 and planet wheel spindle 15, hub reducer casing 11 inner chambers are provided with the gear ring 12 supported by gear ring support 13, described planetary wheel 14 is arranged on planet wheel spindle 15 by needle roller 18, and mesh with gear ring 12 and axle drive shaft 6, planet wheel spindle 15 is installed by interference fit with hub reducer casing 11, because planet wheel spindle 15 is installed by interference fit with hub reducer casing 11, in use, because planetary wheel 14 is stressed, the magnitude of interference of planet wheel spindle 15 and hub reducer casing 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, describedly at planet wheel spindle 15 edges, have aperture 30, hub reducer casing 11 correspondences have a deep gouge 31, Anti-moving ball 19 is installed between aperture 30 and deep gouge 31, prevent the inside play of planet wheel spindle 15, outermost at hub reducer casing 11 is provided with end cap 20, prevent the outside play of planet wheel spindle 15, planet wheel spindle 15 thing that no longer play also just no longer includes leakage of oil occurs.
Described axle drive shaft 6 is punished into two sections in axle housing 1 outer end, and has constant-velocity universal joint 29 to connect, as shown in Figure 5.
Described axle housing 1 section is " mouth " font cavity structure, when reducing weight, improves whole bridge bearing load, and axle drive shaft 6 connects main reduction gear band differential assembly and the wheel reduction gear at two ends by " mouth " font cavity.
As shown in Figure 4, taper driving gear 24 left sides are provided with the ring gear 25 be meshed with taper driving gear 24, taper driving gear 24 drives ring gear 25 while rotating and differential gear box 33 rotates, and moment of torsion is passed to the axle drive shaft 6 of arranged on left and right sides, because taper driving gear 24 is different from the number of teeth of ring gear 25, thereby realize the reduction of rotating speed, increase output torque simultaneously.As shown in Figure 3, axle drive shaft 6 is steady by power through constant-velocity universal joint 29, failure-free is passed to wheel reduction gear, wheel reduction gear by three planet wheel spindles 15 by 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 the trend that gear ring 12 rotates that drives, but gear ring 12 is arranged on gear ring support 13, gear ring support 13 is arranged on axle housing 1 and in fact can not rotates for connecting element by screw, so can only be that axle drive shaft 6 revolves round the sun with hub reducer casing 11 in rotation, hub reducer casing 11 drives wheel hub 7 and realizes that vehicle to overtake.
While turning to, steering cylinder 4 is controlled the rotation of steering swivel 3 by pulling and promoting steering track rod 5, thereby realizes turning to of vehicle.
Complete machine is when the straight-line travelling of smooth-riding surface, and the rotating speed of both sides wheel is consistent, and diff is inoperative; When complete machine turns round or uneven road surface while travelling, the rotating speed of both sides wheel is inconsistent, and now diff works.
Claims (3)
1. a front steering drive axle assembly, comprise axle housing (1), two wheel hubs (7), main reduction gear band differential assembly and wheel reduction gear; Described axle housing (1) is girder structure, which is provided with the pendulum pin-and-hole (21) be connected with vehicle chassis, two wheel hubs (7) are connected to the two ends, left and right of axle housing (1) by wheel hub steering structure (3), described axle housing (1) middle part is provided with cavity, main reduction gear band differential assembly is installed in it, described main reduction gear band differential assembly both sides respectively are rotationally connected an axle drive shaft (6), and axle drive shaft (6) is rotationally connected the wheel reduction gear at axle housing (1) two ends; Described axle housing (1) is provided with wheel steering drive device (4), and this wheel steering drive device (4) is connected with the wheel hub steering structure (3) of two wheel hubs (7) respectively;
Described wheel reduction gear comprises hub reducer casing (11), planetary wheel (14) and the planet wheel spindle (15) be arranged on wheel hub (7), hub reducer casing (11) inner chamber is provided with the gear ring (12) supported by gear ring support (13), and gear ring support (13) is fixedly mounted on axle housing (1); It is upper that described planetary wheel (14) is arranged on the planet wheel spindle (15) be fixed on hub reducer casing (11), and mesh with gear ring (12) and axle drive shaft (6);
It is characterized in that: described axle housing (1) section is " mouth " font cavity structure, and axle drive shaft (6) connects main reduction gear band differential assembly and the wheel reduction gear at two ends by " mouth " font cavity; Described planet wheel spindle (15) edge has aperture (30), and hub reducer casing (11) is corresponding has deep gouge (31), installation Anti-moving ball (19) between aperture (30) and deep gouge (31); The outermost of described hub reducer casing (11) is provided with end cap (20).
2. front steering drive axle assembly according to claim 1, it is characterized in that: described wheel steering drive device (4) is steering cylinder, steering cylinder is rotationally connected steering swivel by steering track rod (5).
3. front steering drive axle assembly according to claim 1, it is characterized in that: described 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 CN102774239A (en) | 2012-11-14 |
| CN102774239B true CN102774239B (en) | 2013-12-04 |
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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 |
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| CN (1) | CN102774239B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521454A (en) * | 2013-12-20 | 2015-06-24 | Jc Bamford Excavators Ltd | Support casing for a differential gear of an axle and track rod assembly |
| DE102016203577A1 (en) * | 2016-03-04 | 2017-09-07 | Goldhofer Ag | Commercial vehicle, in particular heavy vehicle and wheel assembly for such 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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN102774239A (en) | 2012-11-14 |
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Effective date of registration: 20240625 Address after: No. 5 Zhongxing East Road, Economic Development Zone, Lishui District, Nanjing City, Jiangsu Province, 211200 Patentee after: Nanjing Xida Investment Co.,Ltd. Country or region after: China Address before: 211200 No.5, Zhongxing East Road, Lishui Economic Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING CV-HS AUTOPARTS Co.,Ltd. Country or region before: China |