CN203484895U - Gear ring positioning and press fitting device - Google Patents
Gear ring positioning and press fitting device Download PDFInfo
- Publication number
- CN203484895U CN203484895U CN201320511633.XU CN201320511633U CN203484895U CN 203484895 U CN203484895 U CN 203484895U CN 201320511633 U CN201320511633 U CN 201320511633U CN 203484895 U CN203484895 U CN 203484895U
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- CN
- China
- Prior art keywords
- gear ring
- output shaft
- locating piece
- shaft
- angle
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Abstract
The utility model discloses a gear ring positioning and press fitting device which is characterized by comprising a base (1), a positioning shaft (2), an output shaft (8), a gear ring (9), a positioning block (3), a cylindrical pin (5), a pressing head (4), a spring (6) and a nut (7). The gear ring positioning and press fitting device is simple in structure, strong in consistency and stability, high in measurement precision and work efficiency, easy to machine and operate, and long in service life.
Description
Technical field
The utility model relates to a kind of location pinion rings device.
Background technology
In automobile electric booster steering system, gear ring need to press-fit the square hole short central line centering of output shaft, to obtain the relative rotation signal of power shaft and output shaft, for signal conformance and stability, the square hole short central line symmetry of the symmetrical centre axle shaft of requirement gear ring tooth can not be overproof, with realize at present this function and have following structure: 1), setting-out hot charging or press-fit, this method troublesome poeration is easily scalded, and efficiency of assembling is very low, setting-out centering operate miss is very large, the tolerance range that makes to fill rear finished product is very large, relative angular signal uniformity stability is all undesirable, 2), take the square hole of tooth as benchmark machining shafts shaft after press-fiting, this method looks for benchmark also pretty troublesome in the machining stage, causes the efficiency of finished product very low, to the shortcoming of ordering, is when the magnitude of interference is inadequate, to take gear ring location, in process, stressed gear ring rotates, and all that has been achieved is spoiled.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, and uniformity and stability are strong, and certainty of measurement is high, is easy to processing, easy operating, and operating efficiency is high, long service life, the square hole short central line location press-loading apparatus of gear ring to output shaft.
The technical scheme that the utility model adopted is for achieving the above object: location pinion rings device, it is characterized in that, comprise base (1), locating shaft (2), output shaft (8), gear ring (9), and locating piece (3), straight pin (5), pressure head (4), spring (6), nut (7), described locating piece (3) has gathering sill, straight pin (5) slides up and down in gathering sill, angle does not rotate, described locating piece (3) is placed in pressure head (4), and can be under the effect of spring (6) elastic reset, described output shaft (8) and gear ring (9) snap in locating piece (3) and locating shaft (2) orientation angle to, described locating shaft has dowel hole on (2), before described dowel hole, end mill is flat, stretch into hole, output shaft side, location angle in the square hole of output shaft (8), gear ring (9) is by straight pin (5) and locating piece (3) angle location.
On described output shaft (8), be provided with pilot hole and horizontal location plane, described pilot hole and horizontal location plane layout are in base (1).
The utility model location pinion rings device, the mechanism that the relative angle of the tooth of the square hole of output shaft and gear ring is consisted of locating piece, locating shaft, base, spring, straight pin, nut, the machining accuracy that is converted into tooth and pilot pin groove on hole, locating shaft top and pin-and-hole and locating piece, press-fits repetitive positioning accuracy by the requirement of fixture assurance uniform stability thereby realize assembling.
Utility model beneficial effect:
1. the whole motion process of gear ring is all to carry out after holding up of locating piece calmed down position, and output shaft lead angle also can lead to gear ring in press-fiting process, thereby reaches the accurate stationarity of centering of motion;
2. locating piece moves up and down in the axis of guide of pressure head, and machining easily guarantees, has improved the accurate stationarity of movement angle location;
3. spring has been settled in locating piece top, in motion process, has eliminated friction self-locking phenomenon, has reduced the internal force of whole mechanism, thereby has reduced the contact stress between component part, has slowed down wearing and tearing, has improved the life-span of mechanism;
4. all guides, keeper has quenching, has improved wearability and the reliability of mechanism;
In sum, the utility model has not only overcome the deficiency of original two kinds of structures, has also realized simple in structurely simultaneously, and parts are easy to manufacture, is easy to assembling, and reliable in function, life-span are long, and scheme flexibility is strong.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is that a kind of centering of the utility model is pressed gear ring device structural representation.
In figure: 1, base; 2, locating shaft; 3, locating piece; 4, pressure head; 5, straight pin; 6, spring; 7, nut; 8, output shaft; 9, gear ring.
The specific embodiment
As shown in Figure 1, the utility model centering is pressed gear ring device,
Location pinion rings device, it is characterized in that, comprise base 1, locating shaft 2, output shaft 8, gear ring 9, with locating piece 3, straight pin 5, pressure head 4, spring 6, nut 7, described locating piece 3 has gathering sill, straight pin 5 slides up and down in gathering sill, angle does not rotate, described locating piece 3 is placed in pressure head 4, and can be under the effect of spring 6 elastic reset, described output shaft 8 and gear ring 9 snap in locating piece 3 and locating shaft 2 orientation angle to, on described locating shaft 2, have dowel hole, before described dowel hole, end mill is flat, stretch into hole, output shaft side, location angle in output shaft 8 side holes, gear ring (9) is by straight pin (5) and locating piece (3) angle location.
On described output shaft 8, be provided with pilot hole and horizontal location plane, described pilot hole and horizontal location plane layout are in base 1.
One), first gear ring 9 is put in locating piece 3, the tooth of gear ring is stuck on locating piece 3, and gear ring is located by angle, under the effect of spring 6 elastic force and pressure head 4 guiding, press gear ring 9 downwards, gear ring can follow locating piece 3 to float,, can make like this accurate positioning of gear ring angle.
Two), locating shaft 2 stretches into output shaft 8, output shaft 8 plays the effect of pilot centering, the square cavity portion of output shaft 8 snaps in the flat upper of locating shaft 2, makes output shaft be located and reach equally reliable by angle.Expense hole in the middle of locating shaft 2, moves up and down in the groove that pin is opened at locating piece, thereby the angle of output shaft 8 is associated with the angle of gear ring 9.
Three), press down pressure head 4, downward in the self-conductance of output shaft, gear ring 9 is stuck in locating piece 3, overcomes together the magnitude of interference downwards and is press fit in output shaft 8.
Four), press-fit after, above move pressure head, under the effect of spring 6, locating piece 3 playback; Extract the component of output shaft 8 and gear ring 9.
The above; it is only the preferably specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; according to the technical solution of the utility model and utility model design thereof, be equal to replacement or changed, within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. locate pinion rings device, it is characterized in that: comprise base (1), locating shaft (2), output shaft (8), gear ring (9), locating piece (3), straight pin (5), pressure head (4), spring (6), nut (7), described locating piece (3) has gathering sill, straight pin (5) slides up and down in gathering sill, angle does not rotate, described locating piece (3) is placed in pressure head (4), and can be under the effect of spring (6) elastic reset, described output shaft (8) and gear ring (9) snap in locating piece (3) and locating shaft (2) orientation angle to, described locating shaft has dowel hole on (2), before described dowel hole, end mill is flat, stretch into hole, output shaft side, location angle in the square hole of output shaft (8), gear ring (9) is by straight pin (5) and locating piece (3) angle location.
2. location according to claim 1 pinion rings device, is characterized in that: on described output shaft (8), be provided with pilot hole and horizontal location plane, described pilot hole and horizontal location plane layout are in base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511633.XU CN203484895U (en) | 2013-08-21 | 2013-08-21 | Gear ring positioning and press fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320511633.XU CN203484895U (en) | 2013-08-21 | 2013-08-21 | Gear ring positioning and press fitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203484895U true CN203484895U (en) | 2014-03-19 |
Family
ID=50255753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320511633.XU Expired - Lifetime CN203484895U (en) | 2013-08-21 | 2013-08-21 | Gear ring positioning and press fitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203484895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322474A (en) * | 2017-08-22 | 2017-11-07 | 金翰阳科技（大连）股份有限公司 | A kind of press-and-turn type pressure head |
-
2013
- 2013-08-21 CN CN201320511633.XU patent/CN203484895U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322474A (en) * | 2017-08-22 | 2017-11-07 | 金翰阳科技（大连）股份有限公司 | A kind of press-and-turn type pressure head |
| CN107322474B (en) * | 2017-08-22 | 2023-05-23 | 金翰阳科技（大连）股份有限公司 | Press-rotating type pressure head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |