CN204784296U - Two -way freewheel clutch - Google Patents
Two -way freewheel clutch Download PDFInfo
- Publication number
- CN204784296U CN204784296U CN201520402155.8U CN201520402155U CN204784296U CN 204784296 U CN204784296 U CN 204784296U CN 201520402155 U CN201520402155 U CN 201520402155U CN 204784296 U CN204784296 U CN 204784296U
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- plane
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Abstract
The utility model discloses a two -way freewheel clutch, including the integral key shaft, be equipped with first step axle on the integral key shaft, the epaxial spline part that is equipped with of first step, the through -hole has still been opened at the integral key shaft center and through -hole disk body end is equipped with the fender ring, pack into in the through -hole on the main aspects suit of slide -bar behind the spring and its tip stretch out keep off the ring, main aspects stretch into the through hole end face and keep off the joint ring and touch, the retaining ring dress is on the integral key shaft, mounting rim packs into in the spline part, spline partition load separation and reunion cover, and the outside is equipped with two at least adjacent nose, is equipped with first inclined plane, second inclined plane between two nose and connects the cambered surface, first inclined plane and second inclined plane inclination lean out with the nose rather than contact side, form the installation and lead to the groove, and the installation is led to inslot brake spring one end and is connected nose side, other end connection separation and reunion piece, be equipped with the braking fixture block between two separation and reunion pieces, the setting of braking fixture block is on the brake hoop. The universal connecting device of the flexible shaft has a simple structure and is convenient in use.
Description
Technical field
The utility model relates to a kind of wheelchair accessory, particularly relates to a kind of double rolling key clutch be used on wheelchair.
Background technique
In existing wheelchair clutch, mostly manually or extraneous institutional adjustment reach the function switching and turn to, this mode not only increases the operating procedure of operator, also add the manufacture cost of whole clutch, is unfavorable for the maintenance in later stage, maintenance, replacing.
Model utility content
Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide one and is applied on wheelchair and structure is simple, and own structural characteristics can be utilized to realize the double rolling key clutch turned to that automatically switches.
For achieving the above object, the utility model provides a kind of double rolling key clutch, comprise splined shaft, described splined shaft comprises disk body, described disk body is provided with first step axle, described first step axle is provided with splined section, and described splined section is provided with the first installation through hole, and described splined shaft center also has through hole and through hole disk body end is provided with baffle ring, to load after the large end suit upper spring of slide-bar in through hole and its small end stretches out baffle ring, large end stretches into through hole end face and contacts with baffle ring, described large end also has the second installation through hole, back-up ring is contained on splined shaft and an one end face contacts with first step axial end and coordinates, installing ring loads in splined section and an one end face contacts with back-up ring and coordinates, clutch cover center is provided with the first spline coordinated with splined section, and outside is provided with the extension of at least two adjacent circular arcs concentric with clutch cover, the first inclined-plane is provided with between two described extensions, second inclined-plane and connection the first inclined-plane, the connection cambered surface on the second inclined-plane, the first described inclined-plane and the second slope outward-dipping with the extension side be in contact with it, formed from extension end face to connecting the descending installation groove of cambered surface, in described installation groove, brake spring one end connects extension side, the other end connects clutch block,
Be provided with braking fixture block between two described clutch blocks, described braking fixture block is arranged on brake hoop, and described brake hoop center is provided with the second keyway of coordinating with splined section and left end is provided with installation bulge loop, and described installation bulge loop is provided with the 3rd and installs through hole;
Fixing pin loads the first installation through hole, the second installation through hole, the 3rd is installed in through hole and splined shaft, slide-bar, brake hoop are assembled into one.
Further, the first described inclined-plane is identical with the second slope.
Further, described clutch block is cylindrical or spheroidal.
Further, described installation bulge loop loads in the seal ring endoporus of end.
Further, described extension is three and is separated by between two 120 ° to be evenly distributed on outside clutch cover.
The beneficial effects of the utility model are: the utility model structure is simple, easy to use, can reduce cost of production widely, improve user satisfaction.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of double rolling key clutch embodiment of the utility model.
Fig. 2 is the front elevation of a kind of double rolling key clutch embodiment of the utility model.
Fig. 3 is G-G sectional view in Fig. 2.
Fig. 4 is the left view of a kind of double rolling key clutch embodiment of the utility model.
Fig. 5 is B-B sectional view in Fig. 4.
Fig. 6 is the part explosive view of a kind of double rolling key clutch embodiment of the utility model.
Fig. 7 is the part explosive view of a kind of double rolling key clutch embodiment of the utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
See Fig. 1 to Fig. 7, a kind of double rolling key clutch, comprise splined shaft 1, described splined shaft 1 comprises disk body 101, described disk body 101 is provided with first step axle 102, described first step axle 102 is provided with splined section 103, and described splined section 103 is provided with the first installation through hole 104, and described splined shaft 1 center also has through hole 106 and through hole 106 disk body 101 end is provided with baffle ring 105;
To load after the large end 202 of slide-bar 2 is set with upper spring 3 in through hole 106 and its small end 201 stretches out baffle ring 105, large end 202 stretches into through hole 106 end face and contacts with baffle ring 105, described large end 202 also has the second installation through hole 203;
Back-up ring 4 is contained on splined shaft 1 and an one end face coordinates with first step axle 102 end contact;
Installing ring 5 loads in splined section 103 and an one end face contacts with back-up ring 4 and coordinates;
Clutch cover 6 center is provided with the first spline 61 coordinated with splined section 103, and outside is provided with the extension 64 of at least two adjacent circular arcs concentric with clutch cover 6, the first inclined-plane 62 is provided with between two described extensions 64, second inclined-plane 63 and connection the first inclined-plane 62, the connection cambered surface 65 on the second inclined-plane 63, the first described inclined-plane 62 is preferably identical with the second inclined-plane 63 gradient and outward-dipping with extension 64 side be in contact with it, formed from extension 64 end face to connecting the descending installation groove 66 of cambered surface 65, in described installation groove 66, brake spring 6 one end connects extension 64 side, the other end connects clutch block 8, described clutch block 8 is preferably cylindrical or spheroidal,
Braking fixture block 91 is provided with between two described clutch blocks 8, described braking fixture block 91 is arranged on brake hoop 9, described brake hoop 9 center is provided with the second keyway 93 of coordinating with splined section 103 and left end is provided with and installs bulge loop 94, and described installation bulge loop 94 is provided with the 3rd and installs through hole 92;
Fixing pin 10 loads the first installation through hole 104, second and installs through hole 203, the 3rd and install in through hole 92 splined shaft 1, slide-bar 2, brake hoop 9 are assembled into one;
Described installation bulge loop 94 loads in end seal ring 11 endoporus.
During use, see Fig. 6, first remove except slide-bar 2 pulling force to the right, slide-bar resets left under the effect of spring 3, drive brake hoop 9 to be moved to the left simultaneously, until braking fixture block 91 departs from install groove 66, see Fig. 3, when clutch turns left, first clutch block 81 can to rotating, its sense of rotation moves to the larger end of installation groove 66, because can not clamping be produced, and the second clutch block 82 also can turn left, and its sense of rotation is to installation groove 66 small end, when so rotating, the second clutch block 82 can be clamped on and install groove 66 small end, and then realize clutch and turn left.The principle that clutch turns right with turn left identical.See Fig. 6, when needs are braked, only need to slide-bar 2 one pulling force to the right, pull the braking fixture block 91 of brake hoop 9 to snap between the first clutch block 81 and the second clutch block 82, it cannot be clamped in installation groove 66, and then obtain braking effect.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without the need to creative work.Therefore, all technician in the art according to design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (5)
1. a double rolling key clutch, it is characterized in that: comprise splined shaft, described splined shaft comprises disk body, described disk body is provided with first step axle, described first step axle is provided with splined section, described splined section is provided with the first installation through hole, and described splined shaft center also has through hole and through hole disk body end is provided with baffle ring, to load after the large end suit upper spring of slide-bar in through hole and its small end stretches out baffle ring, large end stretches into through hole end face and contacts with baffle ring, described large end also has the second installation through hole, back-up ring is contained on splined shaft and an one end face contacts with first step axial end and coordinates, installing ring loads in splined section and an one end face contacts with back-up ring and coordinates, clutch cover center is provided with the first spline coordinated with splined section, and outside is provided with the extension of at least two adjacent circular arcs concentric with clutch cover, the first inclined-plane is provided with between two described extensions, second inclined-plane and connection the first inclined-plane, the connection cambered surface on the second inclined-plane, the first described inclined-plane and the second slope outward-dipping with the extension side be in contact with it, formed from extension end face to connecting the descending installation groove of cambered surface, in described installation groove, brake spring one end connects extension side, the other end connects clutch block,
Be provided with braking fixture block between two described clutch blocks, described braking fixture block is arranged on brake hoop, and described brake hoop center is provided with the second keyway of coordinating with splined section and left end is provided with installation bulge loop, and described installation bulge loop is provided with the 3rd and installs through hole;
Fixing pin loads the first installation through hole, the second installation through hole, the 3rd is installed in through hole and splined shaft, slide-bar, brake hoop are assembled into one.
2. a kind of double rolling key clutch as claimed in claim 1, is characterized in that: the first described inclined-plane is identical with the second slope.
3. a kind of double rolling key clutch as claimed in claim 1, is characterized in that: described clutch block is cylindrical or spheroidal.
4. a kind of double rolling key clutch as claimed in claim 1, is characterized in that: described installation bulge loop loads in the seal ring endoporus of end.
5. a kind of double rolling key clutch as claimed in claim 1, is characterized in that: described extension is three and is separated by between two 120 ° to be evenly distributed on outside clutch cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402155.8U CN204784296U (en) | 2015-06-11 | 2015-06-11 | Two -way freewheel clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402155.8U CN204784296U (en) | 2015-06-11 | 2015-06-11 | Two -way freewheel clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784296U true CN204784296U (en) | 2015-11-18 |
Family
ID=54524351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402155.8U Active CN204784296U (en) | 2015-06-11 | 2015-06-11 | Two -way freewheel clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204784296U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438754A (en) * | 2016-12-13 | 2017-02-22 | 重庆翔灿机械制造有限公司 | Slide block type bidirectional overrunning clutch |
| CN107327516A (en) * | 2017-08-31 | 2017-11-07 | 顾海昌 | A kind of diagonal-bracing type double rolling key clutch controlled based on flexure strip |
| CN107554484A (en) * | 2017-08-31 | 2018-01-09 | 顾海昌 | A kind of windshield wiper based on double rolling key clutch control |
| CN107693237A (en) * | 2016-08-08 | 2018-02-16 | 广东凯洋医疗科技集团有限公司 | A kind of drive device of wheelchair bidentate group structure |
-
2015
- 2015-06-11 CN CN201520402155.8U patent/CN204784296U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107693237A (en) * | 2016-08-08 | 2018-02-16 | 广东凯洋医疗科技集团有限公司 | A kind of drive device of wheelchair bidentate group structure |
| CN106438754A (en) * | 2016-12-13 | 2017-02-22 | 重庆翔灿机械制造有限公司 | Slide block type bidirectional overrunning clutch |
| CN107327516A (en) * | 2017-08-31 | 2017-11-07 | 顾海昌 | A kind of diagonal-bracing type double rolling key clutch controlled based on flexure strip |
| CN107554484A (en) * | 2017-08-31 | 2018-01-09 | 顾海昌 | A kind of windshield wiper based on double rolling key clutch control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |