CN201129420Y - Mechanical type circulating ball steering gear - Google Patents
Mechanical type circulating ball steering gear Download PDFInfo
- Publication number
- CN201129420Y CN201129420Y CNU2007200425990U CN200720042599U CN201129420Y CN 201129420 Y CN201129420 Y CN 201129420Y CN U2007200425990 U CNU2007200425990 U CN U2007200425990U CN 200720042599 U CN200720042599 U CN 200720042599U CN 201129420 Y CN201129420 Y CN 201129420Y
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- CN
- China
- Prior art keywords
- steering
- gear
- nut
- steering gear
- tooth
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a mechanical recirculating ball steering gear which belongs to the field of automobile parts and comprises a casing, a steering screw, a steering nut and a veering gear sector rocker shaft. The steering screw is in spiral and rotating connection with the steering nut, a rack on one side of the outer surface of the steering nut meshes with a sector gear arranged on the veering gear sector rocker shaft, two ends of the veering gear sector rocker shaft are in rotating connection with a side cover of the casing of the steering gear, and the two ends of the veering gear sector rocker shaft are in rotating connection with the side cover of the casing of the steering gear through a needle roller bearing. The mechanical recirculating ball steering gear has the advantages that the steering gear is enabled to obtain large improvement in transmission efficiency and free strokes, the quality level of a steering gear assembly is increased by one level, and steering performance of a whole automobile is largely increased.
Description
Technical field
The utility model belongs to the automobile component field, is a kind of mechanical type ball-and-nut steering gear.
Background technique
The mechanical type ball-and-nut steering gear is widely used on the light truck at present, needs along with the further lifting of car load quality requirements and truck outlet, it is had higher requirement to the handling maneuver performance, and the free travel of steering wheel is had stricter regulation (far above domestic requirement: 20 degree).By each link that influences the commutator performance is analysed in depth, and to mechanical type ball-and-nut steering gear design of part and each part cooperatively interact the relation study, can find, the existing mechanical ball-and-nut steering gear generally adopts the powder metallurgy lining sliding bearing as the supporting that turns to tooth fan pitman arm shaft axle journal, its transmission efficiency is low, quality of fit is low, matching gap is bigger, easily cause quality problems such as fan axial region position leakage of oil, steering wheel free travel are big, the repair rate of commutator, three guarantees loss are all higher.
Summary of the invention
The purpose of this utility model is to propose a kind of mechanical type ball-and-nut steering gear that can effectively improve steerign gear efficiency, free travel for the problems referred to above that solve prior art.
The purpose of this utility model can be achieved through the following technical solutions:
The mechanical type ball-and-nut steering gear, comprise housing, steering screw, steering nut, turn to tooth fan pitman arm shaft, steering screw is that helical rotation is connected with steering nut, the tooth bar of outer surface one side of steering nut is meshed with the tooth sector that turns to tooth to fan on the pitman arm shaft, turns to the two ends of tooth fan pitman arm shaft to be rotationally connected by needle bearing and steering gear housing side cover.
Advantage of the present utility model is: the utility model adopts the supporting of rolling bearing body as mechanical type ball-and-nut steering gear tooth fan pitman arm shaft axle journal, make steerign gear efficiency and free travel be greatly improved, the free running clearance of steering screw is reduced to below 2 degree by 7 original degree, transmission efficiency is brought up to about 72% by original 65%, meet the requirement that exports truck, filled up the domestic blank of mechanical type commutator.The handling maneuver performance of car load has had basic improvement, and three parcel posts of commutator reduce by 90%, and economic benefit is obvious.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the local structure for amplifying schematic representation of the B portion of Fig. 2.
Embodiment
As Figure 1-3, the utility model mechanical type ball-and-nut steering gear, comprise housing 1, steering screw 2, steering nut 3, turn to tooth fan pitman arm shaft 4, described steering screw 2 is connected for helical rotation with steering nut 3, the tooth bar of outer surface one side of described steering nut 3 is meshed with the tooth sector 11 that turns to tooth to fan on the pitman arm shaft 4, turns to the two ends of tooth fan pitman arm shaft 4 to be rotationally connected by needle bearing 6 and steering gear housing side cover.
Embodiment one
The structure of present embodiment as shown in Figure 1, 2, a kind of mechanical type ball-and-nut steering gear, comprise housing 1, steering screw 2, steering nut 3 and turn to tooth fan pitman arm shaft 4, housing 1 includes loam cake 13 and side cover 14, steering screw 2 and steering nut 3 are rotationally connected by thread helix, one side of steering nut 3 is a spline-simulating 12, turn to tooth fan pitman arm shaft 4 to be provided with tooth sector 11, tooth sector 11 is meshed with a side spline-simulating 12 of steering nut 2, turns to the two ends of tooth fan pitman arm shaft 4 to be rotationally connected by needle bearing 6 and steering gear housing side cover 14.
Mechanical type ball-and-nut steering gear cross-section structure turns to the side cover position at tooth fan pitman arm shaft 4 two ends that two bearing supports 5 respectively are housed as shown in Figure 2, and bearing support 5 is fixed in the hole of the bearing support on the steering gear housing side cover, is provided with needle bearing 6 in the bearing support 5.Be equipped with in a stomidium that turns to tooth fan pitman arm shaft 4 and adjust bolt 7, be fixed in by hexagon nut 8 and turn on the tooth fan pitman arm shaft 4, adjust to be with on the bolt 7 and adjust pad 9, the number of adjusting pad 9 by increase and decrease can freely stretch it.Adjust the flexible back-up ring 10 of pad 9 overcoats, to prevent its wearing and tearing.
When turning to, steering wheel drives steering screw 2 and rotates, and steering nut 3 moves on steering screw 2, makes to turn to tooth fan pitman arm shaft 4 to rotate, and drives pitman arm and swings, and turns to straight and horizontal adjusting rod to move thereby drive, and deflecting roller is swung, and realizes turning to of car load.After changing rolling bearing into by sliding bearing, the transmission efficiency of steering assembly is improved, each part processing precision of steering assembly requires also corresponding raising simultaneously, and the quality level of steering assembly has improved a grade, has improved the handling maneuver performance of car load greatly.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop within the protection domain of the utility model requirement.
Claims (1)
1. mechanical type ball-and-nut steering gear, comprise housing, steering screw, steering nut, turn to tooth fan pitman arm shaft, described steering screw is that helical rotation is connected with steering nut, the tooth bar of outer surface one side of described steering nut is meshed with the tooth sector that turns to tooth to fan on the pitman arm shaft, turn to the two ends and the steering gear housing side cover of tooth fan pitman arm shaft to be rotationally connected, it is characterized in that: turn to the two ends of tooth fan pitman arm shaft to be rotationally connected by needle bearing and steering gear housing side cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200425990U CN201129420Y (en) | 2007-11-20 | 2007-11-20 | Mechanical type circulating ball steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200425990U CN201129420Y (en) | 2007-11-20 | 2007-11-20 | Mechanical type circulating ball steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201129420Y true CN201129420Y (en) | 2008-10-08 |
Family
ID=40017263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200425990U Expired - Fee Related CN201129420Y (en) | 2007-11-20 | 2007-11-20 | Mechanical type circulating ball steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201129420Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509543B (en) * | 2009-03-19 | 2011-01-26 | 北京理工大学 | Ball screw speed reducing mechanism for angle output |
| CN104724160A (en) * | 2014-12-31 | 2015-06-24 | 陈瑞武 | Steering shaft device of three-wheel automobile |
| CN106956716A (en) * | 2017-04-22 | 2017-07-18 | 许昌学院 | A kind of automobile-used recirculating ball-type steering |
| CN107140011A (en) * | 2016-10-09 | 2017-09-08 | 中国北方车辆研究所 | The sector shaft assembly and its device of a kind of driven steering device |
| CN111169529A (en) * | 2018-11-12 | 2020-05-19 | 浙江世宝股份有限公司 | Variable pitch gear ratio tooth profile structure for steering gear of commercial vehicle |
-
2007
- 2007-11-20 CN CNU2007200425990U patent/CN201129420Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101509543B (en) * | 2009-03-19 | 2011-01-26 | 北京理工大学 | Ball screw speed reducing mechanism for angle output |
| CN104724160A (en) * | 2014-12-31 | 2015-06-24 | 陈瑞武 | Steering shaft device of three-wheel automobile |
| CN107140011A (en) * | 2016-10-09 | 2017-09-08 | 中国北方车辆研究所 | The sector shaft assembly and its device of a kind of driven steering device |
| CN107140011B (en) * | 2016-10-09 | 2019-04-26 | 中国北方车辆研究所 | A kind of the sector shaft assembly and its device of electric power steering device |
| CN106956716A (en) * | 2017-04-22 | 2017-07-18 | 许昌学院 | A kind of automobile-used recirculating ball-type steering |
| CN111169529A (en) * | 2018-11-12 | 2020-05-19 | 浙江世宝股份有限公司 | Variable pitch gear ratio tooth profile structure for steering gear of commercial vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NANJING DONGHUA AUTOMOTIVE STEERING CO., LTD. Free format text: FORMER NAME: NANJING AUTOMOTIVE GROUP AUTOMOTIVE REDIRECTOR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 211101 No. 159 West Qinhuai Road, Jiangning District, Jiangsu, Nanjing Patentee after: Nanjing Donghua Automotive Steering Co. ,Ltd. Address before: 211101 No. 159 West Qinhuai Road, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Automotive Group Automotive Redirector Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20161120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |