CN201561066U - Coupling for a small-size electric actuator - Google Patents
Coupling for a small-size electric actuator Download PDFInfo
- Publication number
- CN201561066U CN201561066U CN2009202046659U CN200920204665U CN201561066U CN 201561066 U CN201561066 U CN 201561066U CN 2009202046659 U CN2009202046659 U CN 2009202046659U CN 200920204665 U CN200920204665 U CN 200920204665U CN 201561066 U CN201561066 U CN 201561066U
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- fixture block
- coupling
- hole
- axle
- active frame
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Abstract
The utility model provides a coupling for a small-size electric actuator, which comprises a driving frame connected with the output shaft of an electric actuator, and a driven unit connected with a driven shaft and fitted with the diameter of the driven shaft, wherein the driving frame is provided with through-holes for the driven shaft to pass through; an external spline connected with the output shaft of the electric actuator constitutes the output section of the driving frame; a sliding frame for accommodating the driven unit constitutes the output section of the driving frame, and slideways are arranged in the sliding frame; the driven unit in flexible connection with the driving frame is arranged in the sliding frame of the driving frame; and a first fixture block and a second fixture block of the locking pair of the driven unit can clamp driven shafts with different diameters. The coupling of the utility model has the advantage of simple structure. Therefore, the coupling is suitable for small-size electric actuators.
Description
Technical field
The utility model is the connection set about a kind of transmission shaft, is meant a kind of automatic building control system small-sized electric final controlling element flexible coupling especially.
Background technique
Existing small-sized electric final controlling element pto and driven axle mainly comprise as the Placement of water valve, air-valve main shaft: be connected mode or adopt the coupling of the structure as shown in Figure of description Fig. 1, Fig. 2 to carry out ways of connecting of various key Placements, square hole and axle; Because the middle-size and small-size electric actuator pto of preceding two kinds of Placements is corresponding one by one with the diameter of axle need of valve main shaft, so the third above-mentioned connection is adopted the most widely.
Coupling as shown in Figure 1 and Figure 2 comprises: with the active frame 1 ' that small-sized electric final controlling element pto is fixedlyed connected, pass the double end U-shaped screw rod 2 ' of this active frame, with the locking nut 3 ' of double end U-shaped screw rod 2 screw-thread fit.When the small-sized electric final controlling element cooperates by the consistent valve main shaft 4 ' of the diameter of axle of this coupling and the 2 ' setting of double end U-shaped screw rod, the dead in line of the axis of valve main shaft and small-sized electric final controlling element output shaft.When the desirable diameter of axle of the diameter of axle of valve main shaft 4 ' and this coupling not simultaneously, the axis of valve main shaft 4 ' will not overlap with the axis of small-sized electric final controlling element output shaft, between produce throw of eccentric.Therefore in running, valve forces small-sized electric final controlling element output shaft rotating center to overlap with valve main axis rotation center, and the small-sized electric final controlling element also can force valve main axis rotation center to overlap with small-sized electric final controlling element output shaft rotating center, the result can force a side to yield to the opposing party or two sides all hinder, and valve and final controlling element are caused damage.
China utility model patent publication number CN 2384036Y, open day: on June 21st, 2000, model utility title: the NN type transmission device of electric actuator; Disclose a kind of NN type driving mechanism of electric actuator, on its casing internal gear has been arranged, it is characterized in that: the gear engagement of gear and input shaft, and pass through key, screw on eccentric bushing; Eccentric bushing one end inside is crossed bearing all and is connected with main shaft, and the other end outside is connected with gear coupling by bearing, and the eccentric bushing middle part is outer to be provided with by the fixing bearing of back-up ring; Outer race is connected with duplicate gear, and pressure ring and screw, packing ring are arranged on the duplicate gear, and the external gear of duplicate gear and the internal gear on the casing are connected with a joggle, and the internal gear of duplicate gear and the external gear of gear coupling are connected with a joggle; Gear coupling is connected with casing by bearing, and is connected with main shaft by key; There is back-up ring in the outside of main shaft upper bearing (metal), the outside is provided with by the fixing gear of pin again, end is connected with casing by bearing, this kind driving mechanism can solve above-mentioned axle to a certain extent and connect the eccentric problem that produces, but this kind driving mechanism is comparatively complicated, implementation cost is higher, especially is not suitable for adopting on the small-sized electric final controlling element.
The model utility content
For overcoming above-mentioned defective, the purpose of this utility model promptly is to provide a kind of simple in structure, small-sized electric final controlling element coupling that can adapt to different diameter of axle driven axles.
The purpose of this utility model is achieved through the following technical solutions:
A kind of small-sized electric final controlling element of the utility model coupling mainly comprises: the active frame that is connected with the electric actuator output shaft, the driven device that is connected with driven axle, adapt to this driven axle diameter of axle.This driven device is arranged on the described active frame, with this active frame flexible connection.
With in the coupling, described active frame is connected with electric actuator output axle key at above-mentioned a kind of small-sized electric final controlling element.The penetration hole that passes for driven axle is set up in described active.The external splines that the input Duan Weiyu electric actuator output shaft of described active frame connects, the output section of described active frame is a slider bar of holding described driven device, is provided with slideway in this slider bar.
Further, described driven device is slidingly matched for being with the slideway of described slider bar, locks the locking pair that cooperates with driven axle.The direction that is provided with of described slideway is the X-axis direction of the three-dimensional orthogonal space reference system of Z axle foundation for the spin axis with described active frame.
On the basis of said structure, described locking pair comprises: first, second fixture block.This first, second fixture block place plane normal is parallel separately with the spin axis of active frame.This first, second fixture block is locked folder in described driven axle both sides.Described first, second fixture block is provided with first, second holding tank of clamping driven axle.The shape of holding tank in the XY plane with the X-axis symmetry.Offer axial anti-skid design on the gripping surface of holding tank.
The beneficial effects of the utility model are: the locking pair of this kind coupling by sliding on active frame slider bar slideway, and the centering effect of the holding tank of two fixture block can adapt to the driven axle of bigger than normal or the diameter of axle less than normal; Simultaneously, when the axis of driven axle and electric actuator pto rotating center produce when eccentric, by the relatively initiatively displacement of frame of driven device, make the axis of driven axle overlap with electric actuator pto rotating center self adaption, valve and electric actuator are played a protective role, increase the service life; And this kind coupling is simple in structure, is suitable for adopting on the small-sized electric final controlling element.
Description of drawings
In order to be easy to explanation, the utility model is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is the main apparent direction structural representation of a kind of existing small-sized electric final controlling element with coupling;
Fig. 2 is the perspective view of coupling among Fig. 1;
Fig. 3 is the main apparent direction structural representation of a kind of small-sized electric final controlling element of the utility model with a kind of mode of execution of coupling;
Fig. 4 is the perspective view of coupling among Fig. 3;
Fig. 5 is the A-A broken section structural representation of coupling among Fig. 3;
Fig. 6 is the first fixture block perspective view of coupling among Fig. 3.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
See also Fig. 3-6, Fig. 3 to Fig. 6 is a kind of mode of execution of a kind of small-sized electric final controlling element of the utility model with coupling, a kind of small-sized electric final controlling element of the utility model coupling mainly comprises: the active frame 1 that is connected with electric actuator output shaft (not shown); Wherein, described coupling also comprises: the driven devices that connect with driven axle 5, adapt to the driven axle 5 different diameters of axle, this driven device are arranged on the described active frame 1, with this active frame 1 flexible connection.
Initiatively frame 1 is connected with electric actuator output axle key, and the penetration hole 6 that passes for driven axle 5 is set up in described active.In this embodiment, the external splines 11 that the input Duan Weiyu electric actuator output shaft of active frame 1 connects, the output section of described active frame is a slider bar 12 of holding described driven device, is provided with slideway in this slider bar 12.
In this embodiment, the locking pair of driven device for being slidingly matched with the slideway of described slider bar 12, cooperating with driven axle 5 lockings.The direction that is provided with of described slideway is the X-axis direction of the three-dimensional orthogonal space reference system of Z axle foundation for the spin axis with described active frame.
In this embodiment, locking secondary in the slideway of described slider bar 12 relatively initiatively frame about 1 be free to slide.
Small-sized electric final controlling element in this embodiment is used in the coupling, and described locking pair comprises first fixture block 2, second fixture block 3.The normal on this first fixture block 2, plane, second fixture block, 3 place is parallel respectively separately with the spin axis of active frame.This first fixture block 2, second fixture block 3 are locked folder in described driven axle 5 both sides.Described first fixture block 2, second fixture block 3 are provided with first, second holding tank 22 of clamping driven axle 5.The shape of holding tank 22 is the symmetry axis symmetry with the X-axis in the spin axis with described active frame is the XY plane of the three-dimensional orthogonal space reference system set up of Z axle, can guarantee that the axis of driven axle 5 of clamping is parallel with the Z axle in the XZ plane.The shape of holding tank 22 is the approximate circle arcuation, and radius of arc is less than the radius of penetration hole.The shape of holding tank 22 also can design forming V-shape.Offer axial anti-skid design 23 on the gripping surface of holding tank 22.
Offer the first fixture block through hole 21 of X-axis direction on first fixture block 2; Offer the second fixture block tapped hole 31 corresponding on second fixture block 3 with the first fixture block through hole 21.Described locking pair also comprises passes this first fixture block through hole 21, screws in the lock screw 4 of this second fixture block tapped hole 31.
In this embodiment, the second fixture block tapped hole 31 is a tapped through hole.Described locking pair can also comprise: the fastening screw nut that cooperates with the described lock screw 4 that screws out this second fixture block tapped through hole 31.The first fixture block through hole 21 and the second fixture block tapped hole 31 offer two respectively, and described lock screw 4 and fastening screw nut respectively have two.
On the basis of said structure, in this embodiment, the rectangular through slot that the slider bar 12 of described active frame 1 is laterally offered along active frame 1, described locking pair is placed in this groove, described slideway is the groove face that this groove and described first fixture block 2, second fixture block 3 are slidingly matched, and this rectangular through slot arranged direction is the X-axis direction of the three-dimensional orthogonal space reference system of Z axle foundation for the spin axis with this active frame 1.
By just can be clearly seen that among the figure, this coupling adopts the secondary centering design of locking, utilizes a pair of lock screw 4 to pass first fixture block 2 and screws with second fixture block 3 and cooperate, and locks the driven axle 5 of clamping.Driven device can slide by left and right directions in active frame 1, no matter the diameter of axle of driven axle 5 is less than normal still bigger, produces the eccentric right slip that can both keep left and eliminates, and the axis that reaches driven axle overlaps with the rotating center of final controlling element output shaft.
In this embodiment, the two ends of described groove can be provided with and prevent that described first fixture block 2, second fixture block 3 are from sliding into the positive stop (not shown) that comes off.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; as locking pair and the slideway in the driven device; can adopt the rail structure of known configurations to replace or the like; here repeat no more; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a small-sized electric final controlling element coupling mainly comprises: the active frame that is connected with the electric actuator output shaft;
It is characterized in that described coupling also comprises: the driven device that is connected with driven axle, adapt to this driven axle diameter of axle, this driven device be arranged on the described active frame, with this active frame flexible connection.
2. coupling as claimed in claim 1 is characterized in that: described active frame is connected with electric actuator output axle key, and the penetration hole that passes for driven axle is set up in described active.
3. coupling as claimed in claim 2 is characterized in that: the external splines that the input Duan Weiyu electric actuator output shaft of described active frame connects, the output section of described active frame is a slider bar of holding described driven device, is provided with slideway in this slider bar.
4. coupling as claimed in claim 3 is characterized in that: the locking pair of described driven device for being slidingly matched with the slideway of described slider bar, cooperating with driven axle locking; The direction that is provided with of described slideway is the X-axis direction of the three-dimensional orthogonal space reference system of Z axle foundation for the spin axis with described active frame.
5. coupling as claimed in claim 4, it is characterized in that: described locking pair comprises: first, second fixture block, this first, second fixture block place plane normal is parallel separately with the spin axis of active frame, and this first, second fixture block is locked folder in described driven axle both sides; Described first, second fixture block is provided with first, second holding tank of clamping driven axle, the shape of holding tank in the XY plane with the X-axis symmetry, offer axial anti-skid design on the gripping surface of holding tank.
6. coupling as claimed in claim 5 is characterized in that: offer the first fixture block through hole of X axis on described first fixture block, described second fixture block offers second fixture block tapped hole corresponding with the first fixture block through hole; Secondary also comprising passed the lock screw that this first fixture block through hole screws in this second fixture block tapped hole in described locking.
7. coupling as claimed in claim 6 is characterized in that: the described second fixture block tapped hole is a tapped through hole; Described locking pair also comprises: the fastening screw nut that cooperates with the described lock screw that screws out this second fixture block tapped through hole.
8. coupling as claimed in claim 7 is characterized in that: the described first fixture block through hole and the second fixture block tapped hole offer two respectively, and described lock screw and fastening screw nut respectively have two.
9. coupling as claimed in claim 5 is characterized in that: the slideway of described slider bar setting is the slideway that is slidingly matched with described first, second fixture block.
10. coupling as claimed in claim 9 is characterized in that: the two ends of described slideway are provided with positive stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202046659U CN201561066U (en) | 2009-09-15 | 2009-09-15 | Coupling for a small-size electric actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202046659U CN201561066U (en) | 2009-09-15 | 2009-09-15 | Coupling for a small-size electric actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201561066U true CN201561066U (en) | 2010-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202046659U Expired - Lifetime CN201561066U (en) | 2009-09-15 | 2009-09-15 | Coupling for a small-size electric actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201561066U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240591A (en) * | 2015-11-13 | 2016-01-13 | 嘉兴市通泰科技有限责任公司 | Electric actuator |
| CN107639692A (en) * | 2017-11-15 | 2018-01-30 | 湖北工程职业学院 | Positioning support meanss for circular lumber cutting bed |
| CN110480388A (en) * | 2019-07-25 | 2019-11-22 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | A kind of crank axle fixture and its application method |
-
2009
- 2009-09-15 CN CN2009202046659U patent/CN201561066U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240591A (en) * | 2015-11-13 | 2016-01-13 | 嘉兴市通泰科技有限责任公司 | Electric actuator |
| CN105240591B (en) * | 2015-11-13 | 2018-06-01 | 嘉兴市通泰科技有限责任公司 | A kind of Electric Actuator |
| CN107639692A (en) * | 2017-11-15 | 2018-01-30 | 湖北工程职业学院 | Positioning support meanss for circular lumber cutting bed |
| CN110480388A (en) * | 2019-07-25 | 2019-11-22 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | A kind of crank axle fixture and its application method |
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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: 20100825 |