CN101672359A - Adjusting mechanism capable of micro-controlling back lash of pinion and rack - Google Patents
Adjusting mechanism capable of micro-controlling back lash of pinion and rack Download PDFInfo
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- CN101672359A CN101672359A CN200910272251A CN200910272251A CN101672359A CN 101672359 A CN101672359 A CN 101672359A CN 200910272251 A CN200910272251 A CN 200910272251A CN 200910272251 A CN200910272251 A CN 200910272251A CN 101672359 A CN101672359 A CN 101672359A
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- worm screw
- back lash
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Abstract
The invention relates to an adjusting mechanism capable of micro-controlling the back lash of a pinion and a rack, belonging to the technical field of motor steering. The adjusting mechanism capable of micro-controlling the back lash of the pinion and the rack is constituted by a main body cover, a pinion shaft, a rack, a support seat of the rack, an adjustment plug, a back lash adjusting worm, acheck pin of the worm and the like, wherein, the pinion shaft and the rack are fixed in the main body cover, and the support seat of the rack, a back lash preloaded spring and the adjustment plug arearranged at one side of the rack. A mounting hole of the worm is opened on the main body cover, in which the back lash adjusting worm is arranged, and the tail part of the adjustment plug is processedwith splined teeth. The invention utilizes the principle that the worm gear has large drive ratio, thereby magnifying the sensitivity of the back lash accuracy control of a rack and pinion steering gear by times, correspondingly reducing the used external force when adjusting the worm, and enlarging the controllable range of tolerance clearance. The invention also can be combined with angle and displacement control equipment so that the clearance control can be automatically finished by the equipment, not only the gap value can be accurately controlled, but also the clearance adjustment can be efficiently finished, and thereby the process control capability is greatly improved.
Description
Technical field:
The present invention relates to the clearance adjustment mechanism in the commutator of a kind of pinion and-rack structure, particularly a kind of regulating mechanism that can carry out micro-control to the gear rack back lash belongs to the motor turning technical field.
Background technique:
Automobile in cruising, modal left-hand bend, right-hand bend, straight-line travelling is three kinds of basic exercises action of automobile.For guaranteeing that automobile balance travels, there is a cover mechanism to finish traval trace between the automobile steering roller, this cover is finished the steering system that mechanism that automobile changes direction of travel flexibly is called automobile, this cover mechanism is connected to the steering wheel of automobile cab by various rigidity or flexible Placement, is directly controlled by the driver.
At present, the quality problems of rack and pinion steering gear have significant proportion to be embodied in abnormal sound or return just badly, and under the certain prerequisite of processing technology, the appearance of these two kinds of quality problems has the most direct relation with the gap control of commutator regulating mechanism.In the conventional design, directly by adjusting plug screw by relatively-stationary spiral indentation mode, the compression preloading spring is adjusted control to its gap in the gap at tooth bar regulating mechanism place.Generally be that requirement is artificial by behind the locked adjustment plug screw, different as requested, calculate a rollback angle, the workman will adjust plug screw according to the calculating angle again and manually carry out rollback with instrument; If accurately obtain the adjusting play value, also need in addition accurately to control with specific mode.Gap width is a very sensitive technical parameter in commutator, because the gap length that regulating mechanism reflected directly influences up-to-standard rates such as product frictional force performance and no-load performance test.Gap width is more little, frictional force and no-load performance and the corresponding increase of undulating value meeting thereof, and product percent of pass can reduce.Gap width is big more, and frictional force and no-load performance up-to-standard rate can rise, and will correspondingly improve but the probability of abnormal sound appears in product.In the actual product control, under the situation that guarantees frictional force and unloaded and the inhibition of abnormal sound risk fully, often the controlled range of tolerance clearance is very little, and gap width has only the control interval of a few percent millimeter.At present, even if in the same a collection of product of producing the same day, regulating mechanism commonly used and controlling method are difficult to stable accomplishing disposable accurate control of gap width and stable the maintenance.Under the situation that the production process ability can not definitely be controlled all the time, it all is excessive or too small the causing in gap that a lot of quality problems are arranged.
Summary of the invention:
The objective of the invention is to, a kind of big principle of turbine worm velocity ratio of utilizing is provided, the gap precision of adjusting plug screw is amplified back control; Directly adjust existing, be converted to by scroll bar adjusting the regulating mechanism that can carry out micro-control that plug screw is adjusted to the gear rack back lash to adjusting plug screw.
The present invention realizes above-mentioned purpose by following technical solution:
A kind of regulating mechanism that can carry out micro-control to the gear rack back lash, it is by main body cover, the gear shaft rigid bearing, gear shaft, tooth bar, the rack support seat cushion, the rack support seat, adjust plug screw, the gap preloading spring, worm screw is adjusted in the gap, the worm screw retaining pin constitutes, be fixed with a gear shaft by the gear shaft rigid bearing in the main body cover, be engaged with tooth bar on the gear shaft, back one side of tooth bar is equipped with the rack support seat cushion, the rack support seat, gap preloading spring and adjustment plug screw, it is characterized in that: have a worm screw mounting hole on the hole wall of the installation adjustment plug screw of described main body cover, the gap is housed in the worm screw mounting hole adjusts worm screw, the gap is adjusted on the worm screw two worm screw retaining pins is installed; The tail surface manufacturing of described adjustment plug screw has spline tooth, and worm screw and the spline tooth engagement of adjusting the plug screw afterbody are adjusted in the gap.
The present invention's beneficial effect compared with prior art is:
The present invention utilizes the transmission principle of worm and gear, and the susceptibility that the rack and pinion steering gear adjusting play is accurately controlled amplifies at double, makes corresponding the reducing of external force used when adjusting worm screw.The present invention can also fit angle displacement control apparatus, and gap control is finished automatically by equipment, not only can accurately control gap width, can also high efficiencyly finish the gap adjustment, and the process control ability is improved greatly.But also can cancel in the past requisite locking nut and the locking of screw thread glue in the structure.
Description of drawings:
The working state figure of Fig. 1 after for a kind of can in commutator, the assembling to the regulating mechanism that micro-control is carried out in the gear rack back lash.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Among the figure: 1, main body cover, 2, the gear shaft rigid bearing, 3, gear shaft, 4, tooth bar, 5, rack support seat cushion, 6, the rack support seat, 7, adjust plug screw, 8, the gap preloading spring, 9, worm screw is adjusted in the gap, and 10, the worm screw retaining pin, 11, spline tooth, 12, the worm screw mounting hole.
Embodiment:
This can carry out the regulating mechanism of micro-control by main body cover 1 to the gear rack back lash, gear shaft rigid bearing 2, gear shaft 3, tooth bar 4, rack support seat cushion 5, rack support seat 6, adjust plug screw 7, gap preloading spring 8, worm screw 9 is adjusted in the gap, worm screw retaining pin 10 constitutes, be fixed with a gear shaft 3 by gear shaft rigid bearing 2 in the main body cover 1, be engaged with tooth bar 4 on the gear shaft 3, back lash during for elimination gear shaft 3 and tooth bar 4 transmissions, back one side of tooth bar 4 is equipped with rack support seat cushion 5 and rack support seat 6, the pretightening force of rack support seat 6 provides by gap preloading spring 8, and the other end of gap preloading spring 8 is by adjusting the pretightening force of plug screw 7 Regulation springs.Have a worm screw mounting hole 12 on the hole wall of the installation adjustment plug screw 7 of described main body cover 1, the gap is housed in the worm screw mounting hole 12 adjusts worm screw 9, the gap is adjusted on the worm screw 9 two worm screw retaining pins 10 is installed; The tail surface manufacturing of described adjustment plug screw 7 has spline tooth 11, and worm screw 9 and spline tooth 11 engagements (referring to accompanying drawing 1-2) of adjusting plug screw 7 afterbodys are adjusted in the gap.
During control gap of the present invention, it is locked at first will to adjust plug screw 7, makes gap width X=0mm, the gap is adjusted worm screw 9 again and is rotated in the worm screw mounting hole 12 of the main body cover 1 of packing into, then worm screw retaining pin 10 is installed to the specified position of main body cover, worm screw 9 axial restraints are adjusted in the gap.With main body cover 1 interference fit, adjust worm screw 9 by the gap at last and drive the spline tooth 11 rollbacks rotation respective angles of adjusting plug screws 7 afterbodys, thereby reach the purpose that the gap is accurately controlled during designing requirement worm screw retaining pin 10 assembling.
For example, calculate according to being evenly distributed 36 teeth on adjustment plug screw 7 circumference, in the past if will be when adjusting plug screw and accurately control 45 ° ± 1 ° ability of rollback and satisfy product requirement, it is 1620 ° ± 36 ° to the control rollback angle of scroll bar now by the present invention, under such condition, this mechanism amplifies 36 times with tolerance range, and it is very big to be equivalent to make the controlled range of tolerance clearance to be increased to, and is easy to accurate control.Amplify at double in the gap accurately susceptibility of control, and used power also can correspondingly reduce when making the adjustment worm screw.And maximum benefit is, one of this respective outer side edges can be carried out electric twisting spanner that angle displacement sets when carrying out work, and gap control can be finished automatically by machine, not only can accurately control gap width, can also high efficiencyly finish the gap adjustment, the process control ability will improve greatly.
Claims (1)
1, a kind of regulating mechanism that can carry out micro-control to the gear rack back lash, it is by main body cover (1), gear shaft rigid bearing (2), gear shaft (3), tooth bar (4), rack support seat cushion (5), rack support seat (6), adjust plug screw (7), gap preloading spring (8), worm screw (9) is adjusted in the gap, worm screw retaining pin (10) constitutes, be fixed with a gear shaft (3) by gear shaft rigid bearing (2) in the main body cover (1), be engaged with tooth bar (4) on the gear shaft (3), back one side of tooth bar (4) is equipped with rack support seat cushion (5), rack support seat (6), gap preloading spring (8) and adjustment plug screw (7), it is characterized in that: have a worm screw mounting hole (12) on the hole wall of the installation adjustment plug screw (7) of described main body cover (1), the gap is housed in the worm screw mounting hole (12) adjusts worm screw (9), the gap is adjusted on the worm screw (9) two worm screw retaining pins (10) is installed; The tail surface manufacturing of described adjustment plug screw (7) has spline tooth (11), and worm screw (9) and spline tooth (11) engagement of adjusting plug screw (7) afterbody are adjusted in the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272251A CN101672359A (en) | 2009-09-25 | 2009-09-25 | Adjusting mechanism capable of micro-controlling back lash of pinion and rack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910272251A CN101672359A (en) | 2009-09-25 | 2009-09-25 | Adjusting mechanism capable of micro-controlling back lash of pinion and rack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101672359A true CN101672359A (en) | 2010-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910272251A Pending CN101672359A (en) | 2009-09-25 | 2009-09-25 | Adjusting mechanism capable of micro-controlling back lash of pinion and rack |
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|---|---|
| CN (1) | CN101672359A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062383A (en) * | 2012-12-25 | 2013-04-24 | 无锡市天佑龙汛机械厂 | Planetary gear box |
| CN103085856A (en) * | 2011-11-08 | 2013-05-08 | 福特全球技术公司 | Yoke assembly for power steering rack and pinion gear set |
| CN103158024A (en) * | 2011-12-19 | 2013-06-19 | 沈阳理工大学 | Mechanism capable of adjusting transmission gap of gear rack |
| CN103832465A (en) * | 2012-11-27 | 2014-06-04 | 重庆长安汽车股份有限公司 | Abnormal sound prevention structure of automobile mechanical steering gear |
| EP3037323A1 (en) * | 2014-12-24 | 2016-06-29 | Jtekt Corporation | Method for adjusting steering system and adjustment apparatus for steering system |
| CN105805251A (en) * | 2016-05-16 | 2016-07-27 | 新乡艾迪威汽车科技有限公司 | Rack and gear meshing clearance adjusting mechanism for automobile steering device |
| CN107054444A (en) * | 2017-05-03 | 2017-08-18 | 河南职业技术学院 | Steering machine and automobile steering system |
| CN108106865A (en) * | 2017-12-21 | 2018-06-01 | 芜湖恒隆汽车转向***有限公司 | A kind of rack load device |
| CN108266514A (en) * | 2017-01-02 | 2018-07-10 | 福特全球技术公司 | Motor vehicles gear unit |
| CN108528520A (en) * | 2018-05-14 | 2018-09-14 | 北京汽车股份有限公司 | A kind of steering and the vehicle with it |
| CN110486461A (en) * | 2018-05-15 | 2019-11-22 | 蓝思科技（长沙）有限公司 | A method of eliminating spinning transmission gap |
| CN111874098A (en) * | 2020-07-30 | 2020-11-03 | 北京汽车股份有限公司 | Steering gear, control method and device thereof and vehicle |
-
2009
- 2009-09-25 CN CN200910272251A patent/CN101672359A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085856A (en) * | 2011-11-08 | 2013-05-08 | 福特全球技术公司 | Yoke assembly for power steering rack and pinion gear set |
| CN103158024A (en) * | 2011-12-19 | 2013-06-19 | 沈阳理工大学 | Mechanism capable of adjusting transmission gap of gear rack |
| CN103832465A (en) * | 2012-11-27 | 2014-06-04 | 重庆长安汽车股份有限公司 | Abnormal sound prevention structure of automobile mechanical steering gear |
| CN103062383A (en) * | 2012-12-25 | 2013-04-24 | 无锡市天佑龙汛机械厂 | Planetary gear box |
| CN103062383B (en) * | 2012-12-25 | 2015-11-25 | 无锡夏至自动化有限公司 | A kind of epicyclic gearbox |
| CN105730499B (en) * | 2014-12-24 | 2019-08-20 | 株式会社捷太格特 | Transfer method of adjustment and transfer adjust device |
| CN105730499A (en) * | 2014-12-24 | 2016-07-06 | 株式会社捷太格特 | Method for adjusting steering system and adjustment apparatus for steering system |
| EP3037323A1 (en) * | 2014-12-24 | 2016-06-29 | Jtekt Corporation | Method for adjusting steering system and adjustment apparatus for steering system |
| US10494013B2 (en) | 2014-12-24 | 2019-12-03 | Jtekt Corporation | Method for adjusting steering system and adjustment apparatus for steering system |
| CN105805251A (en) * | 2016-05-16 | 2016-07-27 | 新乡艾迪威汽车科技有限公司 | Rack and gear meshing clearance adjusting mechanism for automobile steering device |
| CN108266514A (en) * | 2017-01-02 | 2018-07-10 | 福特全球技术公司 | Motor vehicles gear unit |
| CN108266514B (en) * | 2017-01-02 | 2022-12-20 | 福特全球技术公司 | Motor vehicle gear unit |
| CN107054444A (en) * | 2017-05-03 | 2017-08-18 | 河南职业技术学院 | Steering machine and automobile steering system |
| CN108106865A (en) * | 2017-12-21 | 2018-06-01 | 芜湖恒隆汽车转向***有限公司 | A kind of rack load device |
| CN108528520A (en) * | 2018-05-14 | 2018-09-14 | 北京汽车股份有限公司 | A kind of steering and the vehicle with it |
| CN108528520B (en) * | 2018-05-14 | 2020-03-20 | 北京汽车股份有限公司 | Steering system and vehicle with same |
| CN110486461A (en) * | 2018-05-15 | 2019-11-22 | 蓝思科技（长沙）有限公司 | A method of eliminating spinning transmission gap |
| CN111874098A (en) * | 2020-07-30 | 2020-11-03 | 北京汽车股份有限公司 | Steering gear, control method and device thereof and vehicle |
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Application publication date: 20100317 |