CN201866130U - Controllable friction rotary isolator - Google Patents
Controllable friction rotary isolator Download PDFInfo
- Publication number
- CN201866130U CN201866130U CN2010206067676U CN201020606767U CN201866130U CN 201866130 U CN201866130 U CN 201866130U CN 2010206067676 U CN2010206067676 U CN 2010206067676U CN 201020606767 U CN201020606767 U CN 201020606767U CN 201866130 U CN201866130 U CN 201866130U
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- gear
- bearing
- friction
- controlled
- spline cam
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Abstract
The utility model discloses a controllable friction rotary isolator which comprises a gear, a spline cam, a roller, a controllable floating sleeve and a bearing, wherein the spline cam and the bearing are arranged in parallel along an axial direction in the gear; the controllable floating sleeve is arranged between the spline cam and the gear; a smooth curved surface which is in the same rotation direction and has a lift range characteristic is arranged on the outer circumference of the spline cam; the roller is arranged in the smooth curved surface; the roller is arranged in a corresponding gap on the controllable floating sleeve; the inner end surface of the bearing is jointed with a positioning step in the gear; the outer end surface of the bearing is jointed with a pressure plate; and the pressure plate is fixed on the gear. By isolating the bearing and the roller, the controllable floating sleeve and the spline cam, the controllable friction rotary isolator can effectively prevent the gear from having friction rotation with the floating sleeve when moving to the direction of the bearing, so that malfunction is prevented; and simultaneously, a friction plate is adopted to be matched with the controllable floating sleeve, the surface finish and hardness of the friction plate are guaranteed, the wear resistance is better, and the service life is longer.
Description
Technical field
The utility model belongs to the one-way element technical field, specifically, and particularly controlled friction rotary type one-way device.
Background technique
One-way element also claims free wheel device, is the vitals on the device such as electric motor car gear changing mechanism.One-way element can only be to the rotation of direction, on another direction by locking.Existing one-way element mainly contains following several structural type: first kind is the pawl type free wheel device, and this free wheel device noise is big, and serious wear slides weak effect; Second kind is the spline cam type overpass clutch, and the patent No. is ZL03233130.4, has the change gear device of cam type overpass characteristic, though this patent has solved wearing and tearing and noise problem, it is pure one-way element, and is uncontrollable; The third is an electromagnetism, the controlled single-direction and dual-direction clutch of centrifugal friction formula, patent No. ZL200720124420.6, though this kind clutch can be controlled, but its positioning bearing and controlled floating bushing and gear all are arranged in the operation interval, the body friction sleeve is a step type, in this case, when bearing in use play occurs, gear moves to the bearing direction, floating bushing is connected on the body friction sleeve of gear, the rotation of gear is with the high point of the roller band in floating bushing and the floating bushing to the cam lift curved surface, form clamped condition, it can enter working state automatically when not needing controlled one-way element work like this, thereby produces misoperation.The structure of body friction sleeve is a step type, because step is arranged, makes that body friction sleeve plane degree of finish difficulty of processing is big in manufacture process, and flatness can not get ensureing, serious wear between floating bushing and the body friction sleeve in use, and working life is shorter.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of controlled friction rotary type one-way device that can effectively prevent the bearing play.
The technical solution of the utility model is as follows: a kind of controlled friction rotary type one-way device, comprise gear, the spline cam, roller, controlled floating bushing and bearing, spline cam and bearing in axial direction are installed in its middle gear side by side, controlled floating bushing is set between spline cam and gear, and the excircle of spline cam is provided with the smooth curved surface with lift characteristics of same rotation direction, in this smooth curved surface roller is set, and roller is installed in the breach corresponding on the controlled floating bushing, its key is: the positioning step in the interior edge face of described bearing and the gear is fitted, the exterior edge face of bearing and pressing plate are fitted, and this pressing plate is fixed on the gear.
Adopt above technological scheme, inside at gear is provided with positioning step, this positioning step and pressing plate match, bearing is positioned, can guarantee the reliability of Bearing Installation on the one hand, on the other hand, positioning step is kept apart bearing and roller, controlled floating bushing, spline cam, can effectively prevent the direction play of bearing, avoid gear when the bearing direction moves, to contact the generation friction and rotated, thereby eliminated the disadvantage that produces misoperation with controlled floating bushing to the spline cam.
Described pressing plate is arranged in the deep gouge of geared end, and fixes by equally distributed screw and gear on the circumference.More than simple and compact for structure, easy accessibility, and be connected firmly between pressing plate and the gear, reliably.
For simplified structure, and strengthen reliability to the spline cam orientation, an end of described spline cam is spacing by the bearing inner race end face axial, and the other end of spline cam is by the jump ring axial limiting.
Be fixed with the friction plate that matches with controlled floating bushing in the end of described gear, this friction plate is the ring plane structure, and the separation of friction plate and pressing plate is at the two ends of gear.The body friction sleeve of the utility model in the friction plate replace traditional structural, friction plate is a plane structure, not only structure is simpler, and the back plain grinding that in the process of processing, can quench earlier, can effectively guarantee the surface finishment and the hardness of friction plate, improve the wearing coefficient and the working life of friction plate so greatly.
Assembling for convenience, it is firm that friction plate is installed, and the inner of described friction plate embeds in the deep gouge of geared end, and friction plate is fixed by equally distributed screw and gear on the circumference.
Beneficial effect: the utility model can prevent effectively that by bearing and roller, controlled floating bushing, spline cam are isolated gear from contacting generation friction rotation with floating bushing when the bearing direction moves, avoided the misoperation generation; Simultaneously, adopt friction plate to cooperate with controlled floating bushing, the surface finishment and the hardness of friction plate are secure, and wear resistance is better, longer service life.The utlity model has characteristics such as design is ingenious, simple in structure, assembling is easy, good reliability, can be widely used in electric motor car gear changing mechanism or other occasion that needs.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a floor map of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1 and Figure 2, the utility model is by gear 1, spline cam 2, roller 3, controlled floating bushing 4, bearing 5, pressing plate 6, jump ring 7, friction plate 8, screw and radially rotate stage clip 12 and constitute, spline cam 2 and bearing 5 in axial direction are installed in its middle gear 1 side by side, spline cam 2 is connected with splined shaft 9 splines, the inner ring of bearing 5 and splined shaft 9 drive fits.Positioning step 1a in the interior edge face of described bearing 5 and the gear 1 fits, and the exterior edge face of bearing 5 and pressing plate 6 are fitted, and this pressing plate 6 is arranged in the deep gouge of gear 1 end, and fixing by equally distributed screw on the circumference and gear 1.One end of described spline cam 2 is spacing by bearing 5 inner ring end face axial, and the other end of spline cam 2 is by jump ring 7 axial limitings that clamp on the splined shaft 9.
As can be known, be processed with the smooth curved surface with lift characteristics of a plurality of same rotation directions on the excircle of spline cam 2 from Fig. 1, Fig. 2, smooth curved surface evenly distributes by circumference, and the number of smooth curved surface is determined according to actual needs.In each smooth curved surface of spline cam 2, be provided with roller 3, and controlled floating bushing 4 is installed between spline cam 2 and the gear 1, this controlled floating bushing 4 is provided with and the corresponding roller installation gap of spline cam smooth curved surface, and described roller 3 is installed in this breach.Be equipped with two by the equally distributed stage clip 12 that radially rotates of circumference between described controlled floating bushing 4 and spline cam 2, this mounting type that radially rotates stage clip 12 is same as the prior art, does not do at this and gives unnecessary details.As shown in Figure 2, A is for radially rotating the rotation direction of the controlled floating bushing 4 in stage clip 12 tops, and B is for radially rotating the rotation direction of stage clip 12 poppyhead key cams 2.Be fixed with the friction plate 8 that matches with controlled floating bushing 4 in the end of described gear 1, this friction plate 8 is the ring plane structure, and friction plate 8 and the two ends of pressing plate 6 separations at gear 1.The inner of described friction plate 8 embeds in the deep gouge of gear 1 end, and friction plate 8 is fixing by equally distributed screw on the circumference and gear 1.
Also as can be known, also be set with solenoid valve 10 on splined shaft 9 from Fig. 1, this solenoid valve 10 is positioned at the next door of gear 1, and in the solenoid valve 10 stage clip 11 is housed, and described stage clip 11 connects with controlled floating bushing 4.
Working principle of the present utility model is as follows:
As shown in Figure 1, when solenoid valve 10 is not switched on, stage clip 11 is pushed controlled floating bushing 4 to the bearing direction, make between the friction plate 8 of controlled floating bushing 4 and gear 1 end face and be in separated state, this moment, radially rotating under stage clip 12 effects between controlled floating bushing 4 and spline cam 2 pushed up the roller in controlled floating bushing 4 breach 3 to the low dot location that is positioned at spline cam 2 smooth curved surfaces, make gear 1, spline cam 2, roller 3 be in disengaged condition, be free to positive and negative rotation.After solenoid valve 10 energisings, the iron core of solenoid valve 10 produces magnetic force, with of the direction absorption of controlled floating bushing 4 to solenoid valve 10, make controlled floating bushing 4 overcome the elastic force of stage clip 11, and be bonded together with friction plate 8, gear 1 drove controlled floating bushing 4 by friction plate 8 and rotated this moment, made controlled floating bushing 4 drive rollers 3 and moved to the high point of spline cam 2 smooth curved surfaces position, roller 3 clamps between gear 1 and spline cam 2, and spline cam 2 can rotate with gear 1 like this.
Although below in conjunction with the accompanying drawings preferred embodiment of the present utility model is described; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present utility model; under the prerequisite of the utility model aim and claim; can make multiple similar expression; substitute with the body friction sleeve among the ZL 200720124420.6 such as friction plate; perhaps change the structure of controlled floating bushing; perhaps pressing plate and friction plate are arranged to end face applying with gear etc., such conversion all falls within the protection domain of the present utility model.
Claims (5)
1. controlled friction rotary type one-way device, comprise gear (1), spline cam (2), roller (3), controlled floating bushing (4) and bearing (5), spline cam (2) and bearing (5) in axial direction are installed in its middle gear (1) side by side, between spline cam (2) and gear (1), controlled floating bushing (4) is set, and the excircle of spline cam (2) is provided with the smooth curved surface with lift characteristics of same rotation direction, roller (3) is set in this smooth curved surface, and roller (3) is installed in controlled floating bushing (4) and goes up in the corresponding breach, it is characterized in that: the positioning step (1a) in the interior edge face of described bearing (5) and the gear (1) is fitted, the exterior edge face of bearing (5) and pressing plate (6) are fitted, and this pressing plate (6) is fixed on the gear (1).
2. controlled friction rotary type one-way device according to claim 1, it is characterized in that: described pressing plate (6) is arranged in the deep gouge of gear (1) end, and fixing by equally distributed screw and gear (1) on the circumference.
3. controlled friction rotary type one-way device according to claim 1 is characterized in that: an end of described spline cam (2) is spacing by bearing (5) inner ring end face axial, and the other end of spline cam (2) is by jump ring (7) axial limiting.
4. according to claim 1 or 2 or 3 described controlled friction rotary type one-way devices, it is characterized in that: be fixed with the friction plate (8) that matches with controlled floating bushing (4) in the end of described gear (1), this friction plate (8) is the ring plane structure, and friction plate (8) and the two ends of pressing plate (6) separation in gear (1).
5. controlled friction rotary type one-way device according to claim 4 is characterized in that: the inner of described friction plate (8) embeds in the deep gouge of gear (1) end, and friction plate (8) is fixing by equally distributed screw and gear (1) on the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206067676U CN201866130U (en) | 2010-11-15 | 2010-11-15 | Controllable friction rotary isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206067676U CN201866130U (en) | 2010-11-15 | 2010-11-15 | Controllable friction rotary isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866130U true CN201866130U (en) | 2011-06-15 |
Family
ID=44137286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206067676U Expired - Lifetime CN201866130U (en) | 2010-11-15 | 2010-11-15 | Controllable friction rotary isolator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866130U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370760A (en) * | 2015-11-28 | 2016-03-02 | 重庆华洋单向器制造有限公司 | Overrunning device |
| CN105402274A (en) * | 2015-11-28 | 2016-03-16 | 重庆华洋单向器制造有限公司 | Encircling overrun clutch |
| CN110985627A (en) * | 2019-12-04 | 2020-04-10 | 西南大学 | Mechanical double-overrunning self-adaptive automatic transmission adopting multi-row floating overrunning clutch |
| CN111043256A (en) * | 2019-12-04 | 2020-04-21 | 西南大学 | Full-mechanical self-adaptive automatic speed change system |
| CN112901729A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-row combined overrunning clutch |
| CN112901728A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Double-overrunning self-adaptive automatic speed change system adopting multi-row floating overrunning clutch |
-
2010
- 2010-11-15 CN CN2010206067676U patent/CN201866130U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370760A (en) * | 2015-11-28 | 2016-03-02 | 重庆华洋单向器制造有限公司 | Overrunning device |
| CN105402274A (en) * | 2015-11-28 | 2016-03-16 | 重庆华洋单向器制造有限公司 | Encircling overrun clutch |
| CN105402274B (en) * | 2015-11-28 | 2017-09-15 | 重庆华洋单向器制造有限公司 | A kind of encircling type isolator |
| CN105370760B (en) * | 2015-11-28 | 2018-06-22 | 重庆华洋单向器制造有限公司 | One kind surmounts device |
| CN110985627A (en) * | 2019-12-04 | 2020-04-10 | 西南大学 | Mechanical double-overrunning self-adaptive automatic transmission adopting multi-row floating overrunning clutch |
| CN111043256A (en) * | 2019-12-04 | 2020-04-21 | 西南大学 | Full-mechanical self-adaptive automatic speed change system |
| CN112901729A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-row combined overrunning clutch |
| CN112901728A (en) * | 2019-12-04 | 2021-06-04 | 西南大学 | Double-overrunning self-adaptive automatic speed change system adopting multi-row floating overrunning clutch |
| CN110985627B (en) * | 2019-12-04 | 2022-03-04 | 西南大学 | Mechanical double-overrunning self-adaptive automatic transmission adopting multi-row floating overrunning clutch |
| CN112901729B (en) * | 2019-12-04 | 2022-04-08 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-row combined overrunning clutch |
| CN112901728B (en) * | 2019-12-04 | 2022-04-12 | 西南大学 | Double-overrunning self-adaptive automatic speed change system adopting multi-row floating overrunning clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |