CN102765298B - Front steering axle assembly - Google Patents
Front steering axle assembly Download PDFInfo
- Publication number
- CN102765298B CN102765298B CN201210223713.5A CN201210223713A CN102765298B CN 102765298 B CN102765298 B CN 102765298B CN 201210223713 A CN201210223713 A CN 201210223713A CN 102765298 B CN102765298 B CN 102765298B
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- Prior art keywords
- steering
- axle housing
- backing pin
- wheel hub
- axle assembly
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- 238000010276 construction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The invention discloses a front steering axle assembly comprising an axle housing (1) and two hubs (5), wherein the axle housing (1) adopts a girder structure; the two hubs (5) are respectively connected with the left end and the right end of the axle housing (1) through hub steering structures (2); the axle housing (1) is provided with a hub steering driving device (3); the hub steering driving device (3) is respectively connected with the hub steering structures of the two hubs (5); a chassis connecting device (16) connected with a vehicle chassis is arranged on the axle housing (1); and the middle of the axle housing (1) is bent upwards to be arciform. The front steering axle assembly has the benefits of high load-bearing capacity, simple structure, convenience in mounting and dismounting, flexibility in operation, large ground clearance and stable and reliable quality.
Description
Technical field
The present invention relates to a kind of construction machinery and equipment, farm machinery part field, especially relate to large-tonnage backhoe loader, large tractor chassis front steering 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.Meanwhile, technical merit, the manufacturing process etc. of the field machine such as construction machinery and equipment, trac. have all had significant progress.The requirements for quality of complete machine has also been proposed to higher demand.
The work under bad environment of construction machinery and equipment, farm machinery, reliability and crossing ability to complete machine have higher requirements.
The subject matter of existing propons is that maintenance is inconvenient, fault rate is high, is difficult to meet the requirement of client to quality.
Summary of the invention
The object of this invention is to provide a kind of simple and compact for structure, easy to maintenancely, crossing ability is high, can meet the front steering axle assembly that large-tonnage backhoe loader, large tractor are used.
For addressing the above problem, technical scheme of the present invention is: a kind of front steering axle assembly, comprises axle housing and two wheel hubs; Described axle housing is girder structure, and two wheel hubs are connected to respectively the two ends, left and right of axle housing by wheel hub steering structure; Axle housing is provided with wheel hub steer-drive, and this wheel hub device of rotation driving is connected with the wheel hub steering structure of two wheel hubs respectively; Described axle housing is provided with the chassis connecting device being connected with vehicle chassis; Described axle housing middle part K/UP, archwise.Arc axle housing makes the axle housing ground Clearance large, is adapted at using in the situation of different road surfaces, and crossing ability is high, and steady quality is reliable, can meet large-tonnage backhoe loader, large tractor use, and simultaneously simple and compact for structure, installing/dismounting is more quick, easy to maintenance.
As the very further improvement of invention, described chassis connecting device is pendulum pin-and-hole, and this pendulum pin-and-hole is at the top of arc axle housing; And this pendulum pin-and-hole be axially perpendicular to arc place plane.Pendulum pin-and-hole is connected with overall chassis, simple in structure, puts being axially perpendicular to arc place plane and can better realizing the control to propons of pin-and-hole.
As the very further improvement of invention, be arranged with respectively positive stop lug boss at the right and left at the top of arc axle housing.When positive stop lug boss can prevent that propons from using and the interference on chassis.
As the very further improvement of invention, described wheel hub steering structure is steering swivel; Steering swivel and wheel hub are dynamically connected by bearing rotary; On steering swivel, be also provided with backing pin and lower backing pin, in opposite directions and coaxial, and two backing pin place axles are vertical with the turning cylinder of wheel hub for two backing pins; The two ends, left and right of axle housing are equipped with backing pin installing blind and lower backing pin installing blind; Described upper and lower backing pin is rotatably connected on respectively in backing pin installing blind and lower backing pin installing blind.The mode that adopts pin to connect, realizes the turning function of steering swivel around upper backing pin and lower pin center rotation, and steering swivel and wheel hub are dynamically connected with bearing rotary, and friction force is less, has good mechanical efficiency.
As a further improvement on the present invention, upper backing pin installing blind is rotationally connected by needle bearing and upper backing pin, and lower backing pin installing blind is rotationally connected by oscillating bearing and lower backing pin.Needle bearing superficial hardness is high, is ensureing that under lubricated prerequisite, complete machine can be accomplished non-maintaining in the whole cycle in service life, and turns to light; Oscillating bearing is more wear-resisting, resistance is less and have stronger bearing function.
As a further improvement on the present invention, the bearing that wheel hub is connected with steering swivel is tapered roller bearing.The application of tapered roller bearing can reduce stress concentrates, and extends the service life of steering swivel.
As a further improvement on the present invention, described wheel hub steer-drive is steering cylinder, and these steering cylinder two ends are all provided with piston, and two pistons are connected to steering swivel by steering track rod respectively, and steering track rod and steering swivel are for being rotationally connected.Steering track rod drives steering swivel to rotate, and realizes turning function.
Further improve as of the present invention, axle housing cross section is " work " font.The axle housing load-carrying capacity of " work " font is larger.
In sum, the invention has the beneficial effects as follows: load-carrying capacity is large, simple in structure, easy installation and removal, flexible operation, ground Clearance are large, and steady quality is reliable.
Brief description of the drawings
Fig. 1 is the schematic diagram of front steering axle assembly structure.
Fig. 2 is that the P of Fig. 1 is to view.
Fig. 3 is front steering axle assembly end construction schematic diagram.
Fig. 4 is the cross section structure schematic diagram of axle housing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
As shown in Figures 1 to 4, a kind of front steering axle assembly, comprises axle housing 1 and two wheel hubs 5; Described axle housing 1 is girder structure, and cross section is " work " font, and middle part K/UP, archwise, and the right and left at the top of arc axle housing 1 is arranged with respectively positive stop lug boss 12; Two wheel hubs 5 are connected to respectively the two ends, left and right of axle housing 1 by steering swivel 2, steering swivel and wheel hub 5 are rotationally connected by tapered roller bearing 6; On steering swivel, be also provided with backing pin 7 and 8, two backing pins of lower backing pin in opposite directions and coaxial, and two backing pin place axles are vertical with the turning cylinder of wheel hub 5; The two ends, left and right of axle housing 1 are equipped with backing pin installing blind 14 and lower backing pin installing blind 15; Described upper and lower backing pin is rotatably connected on respectively backing pin installing blind 14 and the interior upper backing pin installing blind 14 of lower backing pin installing blind 15 is rotationally connected by needle bearing 9 and upper backing pin 7, and lower backing pin installing blind 15 is rotationally connected by oscillating bearing 10 and lower backing pin 8; Axle housing 1 is provided with steering cylinder 3, and these steering cylinder 3 two ends are all provided with piston, and two pistons are connected to steering swivel by steering track rod 4 respectively, and steering track rod 4 and steering swivel 2 are for being rotationally connected; Described axle housing 1 is provided with the pendulum pin-and-hole 16 being connected with vehicle chassis, and this pendulum pin-and-hole 16 is at the top of arc axle housing 1; And this pendulum pin-and-hole 16 be axially perpendicular to arc place plane.
When assembling, put pin-and-hole 16 and be connected with overall chassis (not shown), and positive stop lug boss 12 prevent vehicle bridge rotate time and chassis interference; The piston of steering cylinder 3 can way moving, when use, be moved to the left by the piston of controlling steering cylinder 3, steering cylinder 3 pushes away the steering swivel 2 in left side left by the steering track rod 4 in left side, its line of centers around upper backing pin 7 and lower backing pin 8 is turned left, pull the steering swivel 2 on right side simultaneously by the steering track rod 4 on right side, the steering swivel 2 on right side is turned left around the line of centers of upper backing pin 7 and lower backing pin 8, thereby realize the synchronous left-handed turning of left and right wheels, realize vehicle; In the time that the piston of steering cylinder 3 is moved right by control, steering cylinder 3 pulls the steering swivel 2 in left side to the right by the steering track rod 4 in left side, make its line of centers turning clockwise around upper backing pin 7 and lower backing pin 8, promote the steering swivel 2 on right side to the right by the steering track rod 4 on right side simultaneously, make the steering swivel 2 on right side around the line of centers turning clockwise of upper backing pin 7 and lower backing pin 8, thereby realize the synchronous right-hand turning of left and right wheels, realize vehicle and turn right, finally realize turning to of vehicle.
Claims (6)
1. a front steering axle assembly, comprises axle housing (1) and two wheel hubs (5); Described axle housing (1) is girder structure, and two wheel hubs (5) are connected to respectively the two ends, left and right of axle housing (1) by steering swivel (2); Axle housing (1) is provided with wheel hub steer-drive (3), and this wheel hub device of rotation driving (3) is connected with the steering swivel (2) of two wheel hubs (5) respectively; Described axle housing (1) is provided with the chassis connecting device (16) being connected with vehicle chassis; It is characterized in that: described axle housing (1) middle part K/UP, archwise, steering swivel and wheel hub (5) are rotationally connected by bearing (6); On steering swivel, be also provided with backing pin (7) and lower backing pin (8), in opposite directions and coaxial, and two backing pin place axles are vertical with the turning cylinder of wheel hub (5) for two backing pins; The two ends, left and right of axle housing (1) are equipped with backing pin installing blind (14) and lower backing pin installing blind (15); Upper backing pin installing blind (14) is rotationally connected by needle bearing (9) and upper backing pin (7), and lower backing pin installing blind (15) is rotationally connected by oscillating bearing (10) and lower backing pin (8).
2. front steering axle assembly according to claim 1, is characterized in that: described chassis connecting device (16) is pendulum pin-and-hole, and this pendulum pin-and-hole is at the top of arc axle housing (1); And this pendulum pin-and-hole be axially perpendicular to arc place plane.
3. front steering axle assembly according to claim 1, is characterized in that: the right and left at the top of arc axle housing (1) is arranged with respectively positive stop lug boss (12).
4. front steering axle assembly according to claim 1, is characterized in that: the bearing (6) that wheel hub (5) is connected with steering swivel (2) is tapered roller bearing.
5. front steering axle assembly according to claim 1, it is characterized in that: described wheel hub steer-drive (3) is steering cylinder, these steering cylinder two ends are all provided with piston, two pistons are connected to steering swivel by steering track rod (4) respectively, and steering track rod (4) and steering swivel are for being rotationally connected.
6. according to the front steering axle assembly described in claim 1 to 5 any one, it is characterized in that: described axle housing (1) cross section is " work " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223713.5A CN102765298B (en) | 2012-06-30 | 2012-06-30 | Front steering axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210223713.5A CN102765298B (en) | 2012-06-30 | 2012-06-30 | Front steering axle assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102765298A CN102765298A (en) | 2012-11-07 |
| CN102765298B true CN102765298B (en) | 2014-07-30 |
Family
ID=47092958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210223713.5A Active CN102765298B (en) | 2012-06-30 | 2012-06-30 | Front steering axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102765298B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264623B (en) * | 2017-05-31 | 2019-05-28 | 北京航空航天大学 | A kind of steering Biodge device of high-clearance |
| CN107284135B (en) * | 2017-05-31 | 2019-12-31 | 北京航空航天大学 | Steering drive axle with normal ground clearance |
| CN107225913B (en) * | 2017-05-31 | 2019-10-29 | 北京航空航天大学 | A kind of steering and driving axle of high-clearance |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2269327Y (en) * | 1996-06-07 | 1997-12-03 | 四川都江机械厂 | Front steering bridge for light automobile |
| US20060197372A1 (en) * | 2005-03-04 | 2006-09-07 | Hendrickson Usa, L.L.C. | Raised-center axle and process for forming |
| CN200960831Y (en) * | 2006-09-07 | 2007-10-17 | 梅利红 | Automobile drive axle housing with composite prestressing force |
| JP2007283388A (en) * | 2006-04-19 | 2007-11-01 | Press Kogyo Co Ltd | Axle case manufacturing method |
| CN201305865Y (en) * | 2008-12-01 | 2009-09-09 | 晋江市连盛液压机械有限公司 | Driving front axle of small wheel excavator |
| CN202742991U (en) * | 2012-06-30 | 2013-02-20 | 南京创捷和信汽车零部件有限公司 | Front steering axle assembly |
-
2012
- 2012-06-30 CN CN201210223713.5A patent/CN102765298B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2269327Y (en) * | 1996-06-07 | 1997-12-03 | 四川都江机械厂 | Front steering bridge for light automobile |
| US20060197372A1 (en) * | 2005-03-04 | 2006-09-07 | Hendrickson Usa, L.L.C. | Raised-center axle and process for forming |
| JP2007283388A (en) * | 2006-04-19 | 2007-11-01 | Press Kogyo Co Ltd | Axle case manufacturing method |
| CN200960831Y (en) * | 2006-09-07 | 2007-10-17 | 梅利红 | Automobile drive axle housing with composite prestressing force |
| CN201305865Y (en) * | 2008-12-01 | 2009-09-09 | 晋江市连盛液压机械有限公司 | Driving front axle of small wheel excavator |
| CN202742991U (en) * | 2012-06-30 | 2013-02-20 | 南京创捷和信汽车零部件有限公司 | Front steering axle assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102765298A (en) | 2012-11-07 |
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Effective date of registration: 20240627 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 |
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