CN209294280U - A kind of overload protection arrangement for the manual shaft of Electric Actuator - Google Patents
A kind of overload protection arrangement for the manual shaft of Electric Actuator Download PDFInfo
- Publication number
- CN209294280U CN209294280U CN201822095989.5U CN201822095989U CN209294280U CN 209294280 U CN209294280 U CN 209294280U CN 201822095989 U CN201822095989 U CN 201822095989U CN 209294280 U CN209294280 U CN 209294280U
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- China
- Prior art keywords
- holding claw
- manual
- transmission gear
- electric actuator
- overload protection
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Abstract
The utility model relates to a kind of overload protection arrangements for the manual shaft of Electric Actuator, it includes holding claw, transmission gear and the mistake torque spring being looped around outside holding claw, the transmission gear is tapered and its outer wall in axial direction spaced set have straight-tooth, the up big and down small bellmouth being vertically inserted into for transmission gear is formed in the holding claw, the tooth socket being vertically embedded in for straight-tooth is provided in bellmouth, position in the holding claw with bellmouth is evenly arranged with the inside and outside deformation joint of connection along axial direction, torque ring spring is crossed to be wound on the position in holding claw with bellmouth, the holding claw is connect with manual gear, the transmission gear is connect with manual force-applying piece.The utility model one end is connect with manual gear and the other end is connect with manual force-applying piece, solves the problems, such as manual operation overload.
Description
Technical field
It is the utility model relates to the manual shaft of Electric Actuator, in particular to a kind of for the manual shaft of Electric Actuator
Overload protection arrangement.
Background technique
Currently, the manual shaft majority of Electric Actuator does not have exertin protection, directly exerted a force manually with spanner or handwheel etc.
Part connection gear is operated manually, and be easy to cause hand gear to damage when firmly larger or Electric Actuator is caused to damage
It is bad.
Utility model content
The purpose of this utility model is to provide a kind of overload protection arrangements for the manual shaft of Electric Actuator, it one
End is connect with manual gear and the other end is connect with manual force-applying piece, solves the problems, such as manual operation overload.
The above-mentioned purpose of the utility model has the technical scheme that a kind of for Electric Actuator hand
The overload protection arrangement of dynamic shaft, including holding claw, transmission gear and the mistake torque spring being looped around outside holding claw, the driving cog
It takes turns on tapered and its outer wall that in axial direction spaced set has straight-tooth, is formed in the holding claw up big and down small for driving cog
The bellmouth being vertically inserted into is taken turns, the tooth socket being vertically embedded in for straight-tooth is provided in bellmouth, has bellmouth in the holding claw
Position is evenly arranged with the inside and outside deformation joint of connection along axial direction, crosses torque ring spring and is wound on the position for having bellmouth in holding claw
On, the holding claw is connect with manual gear, and the transmission gear is connect with manual force-applying piece.
By using above-mentioned technical proposal, in use, holding claw is detachably solid away from one end of transmission gear and manual gear
Fixed connection, transmission gear are detachably fixed with manual force-applying piece away from holding claw one end and connect, exerted a force by manual force-applying piece, are driven
Gear synchronously rotates with holding claw, and when torque oversteps the extreme limit, holding claw is crossed torque spring and deformed therewith from deformation joint swell,
So that slip phenomenon, effective protection hand gear and hand actuator occur for the tooth socket in straight-tooth and holding claw on transmission gear；
When torque is in the limit, in the case where crossing the elastic reaction of torque spring and holding claw itself, the straight-tooth and holding claw of transmission gear
In tooth socket effectively engage, rotate synchronously.
When the transmission gear and straight-tooth of taper are with holding claw transmission is adapted to, has both sides advantage, when to both transmission
Do force analysis: Fa- conical surface pressure, Fr2- radial component, Fw- axial thrust load;Analysis finds radial component Fr2 in axial line two
Side is cancelled out each other, and axial thrust load Fw makes transmission gear generate the strength separated with holding claw, keeps slippage more smooth, therefore the biography of taper
When moving gear and straight-tooth are with holding claw transmission is adapted to, has the advantage of high sensitivity and transmission gear and holding claw not easy damaged.
The utility model is further arranged to: transmission gear and manual force-applying piece grafting.
By using above-mentioned technical proposal, the installation and removal of manual force-applying piece are facilitated.
The utility model is further arranged to: being fixedly installed boss on transmission gear, polygon is offered on boss
Hole, the abutting end of manual force-applying piece are inserted into polygonal hole and are in polygon cylindricality.
By using above-mentioned technical proposal, connected structure is simple, and easy to process and use is reliable.
The utility model is further arranged to: polygonal hole is hexagonal.
By using above-mentioned technical proposal, hexagonal hole balance is good and easy to process.
The utility model is further arranged to: the holding claw and manual gear grafting.
By using above-mentioned technical proposal, the installation and removal of holding claw and manual gear are facilitated.
The utility model is further arranged to: sleeve is fixedly installed in holding claw, it is fixed on the axis of manual gear
It is provided with inserted link, the structure of inserted link in polygon and can be inserted into sleeve.
By using above-mentioned technical proposal, connected structure is simple, and easy to process and use is reliable.
The utility model is further arranged to: the cross section of inserted link is hexagonal.
By using above-mentioned technical proposal, hexagonal hole balance is good and easy to process.
In conclusion the utility model has the following beneficial effects:
1. connecting in use, holding claw is detachably fixed away from one end of transmission gear with manual gear, transmission gear deviates from
Holding claw one end is detachably fixed with manual force-applying piece and connect, and is exerted a force by manual force-applying piece, and transmission gear does synchronous turn with holding claw
Dynamic, when torque oversteps the extreme limit, holding claw is crossed torque spring and is deformed therewith, so that straight on transmission gear from deformation joint swell
Slip phenomenon, effective protection hand gear and hand actuator occur for the tooth socket in tooth and holding claw；
2. the transmission gear and straight-tooth of taper are with holding claw transmission is adapted to, have high sensitivity and transmission gear and embrace
The advantage of pawl not easy damaged.
Detailed description of the invention
Fig. 1 is the schematic perspective view of overload protection arrangement；
Fig. 2 is the explosive view of overload protection arrangement；
Fig. 3 is the cross-sectional view of overload protection arrangement；
Fig. 4 is the enlarged drawing in the portion A in Fig. 3.
In figure, 1, holding claw；10, deformation joint；11, sleeve；2, transmission gear；20, boss；21, polygonal hole；3, manual tooth
Wheel；30, inserted link；4, torque spring is crossed；5, manual force-applying piece.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment
Referring to Fig.1, Fig. 2, Fig. 3, a kind of overload protection arrangement for the manual shaft of Electric Actuator, including holding claw 1, biography
Moving gear 2 and the mistake torque spring 4 being looped around outside holding claw 1, the transmission gear 2 is tapered and its outer wall in axial direction
Spaced set has straight-tooth, and the up big and down small bellmouth being vertically inserted into for transmission gear 2, bellmouth are formed in the holding claw 1
In be provided with the tooth socket being vertically embedded in for straight-tooth, the position in the holding claw 1 with bellmouth is evenly arranged with connection along axial direction
Inside and outside deformation joint 10 is crossed torque spring 4 and is looped around on the position in holding claw 1 with bellmouth.
It is connect in use, holding claw 1 is detachably fixed away from one end of transmission gear 2 with manual gear 3, transmission gear 2 is carried on the back
It is detachably fixed and connect with manual force-applying piece 5 from 1 one end of holding claw, exerted a force by manual force-applying piece 5, transmission gear 2 is done with holding claw 1
It rotates synchronously, when torque oversteps the extreme limit, holding claw 1 is crossed torque spring 4 and deformed therewith from swell from deformation joint 10, so that transmission
Slip phenomenon, effective protection hand gear and hand actuator occur for the tooth socket in the straight-tooth and holding claw 1 on gear 2；Work as torque
When in the limit, in the case where crossing the elastic reaction of torque spring 4 and holding claw 1 itself, in the straight-tooth and holding claw 1 of transmission gear 2
Tooth socket effectively engage, rotate synchronously.
In conjunction with Fig. 4, when the transmission gear 2 and straight-tooth of taper are with the transmission of holding claw 1 is adapted to, has both sides advantage, to it
The two does force analysis when being driven: Fa- conical surface pressure, Fr2- radial component, Fw- axial thrust load;Analysis finds radial component Fr2
It cancelling out each other in axial line two sides, axial thrust load Fw makes transmission gear 2 generate the strength isolated with holding claw 1, and keep slippage more smooth,
Therefore when the transmission gear 2 and straight-tooth of taper are with the transmission of holding claw 1 is adapted to, have high sensitivity and transmission gear 2 and holding claw 1 not
The advantage of easy damaged.
Referring to Fig.1, Fig. 2, Fig. 3, transmission gear 2 and manual 5 grafting of force-applying piece.Specifically, being fixedly installed on transmission gear 2
There is boss 20, polygonal hole 21 is offered on boss 20, the abutting end of manual force-applying piece 5 is inserted into polygonal hole 21 and in more
Side shape cylindricality.Polygonal hole 21 is hexagonal.
Holding claw 1 and 3 grafting of manual gear.Specifically, sleeve 11 is fixedly installed in holding claw 1, in the axis of manual gear 3
Inserted link 30 is fixedly installed on line, the structure of inserted link 30 in polygon and can be inserted into sleeve 11.The cross section of inserted link 30 is in six
Side shape.
The embodiment of present embodiment is the utility model preferred embodiment, not limits the utility model according to this
Protection scope, therefore: it is practical new should all to be covered by this for the equivalence changes that all structures, shape, principle according to the utility model are done
Within the protection scope of type.
Claims (7)
1. a kind of overload protection arrangement for the manual shaft of Electric Actuator, it is characterised in that: including holding claw (1), driving cog
Wheel (2) and be looped around the mistake torque spring (4) of holding claw (1) outside, the transmission gear (2) is tapered and its outer wall on along axial direction
Direction spaced set has straight-tooth, and the up big and down small taper being vertically inserted into for transmission gear (2) is formed on the holding claw (1)
Hole is provided with the tooth socket being vertically embedded in for straight-tooth in bellmouth, on the holding claw (1) position with bellmouth along it is axial uniformly
It is provided with the inside and outside deformation joint (10) of connection, torque spring (4) is crossed and is looped around on the position on holding claw (1) with bellmouth, institute
It states holding claw (1) to connect with manual gear (3), the transmission gear (2) connect with manual force-applying piece (5).
2. a kind of overload protection arrangement for the manual shaft of Electric Actuator according to claim 1, it is characterised in that:
Transmission gear (2) and manual force-applying piece (5) grafting.
3. a kind of overload protection arrangement for the manual shaft of Electric Actuator according to claim 2, it is characterised in that:
It is fixedly installed boss (20) on transmission gear (2), is offered on boss (20) polygonal hole (21), manual force-applying piece (5)
Abutting end insertion polygonal hole (21) in and be in polygon cylindricality.
4. a kind of overload protection arrangement for the manual shaft of Electric Actuator according to claim 3, it is characterised in that:
Polygonal hole (21) is hexagonal.
5. a kind of overload protection arrangement for the manual shaft of Electric Actuator according to claim 1 or 4, feature exist
In: the holding claw (1) and manual gear (3) grafting.
6. a kind of overload protection arrangement for the manual shaft of Electric Actuator according to claim 5, it is characterised in that:
It is fixedly installed sleeve (11) on holding claw (1), inserted link (30), inserted link are fixedly installed on the axis of manual gear (3)
(30) structure is in polygon and can be inserted into sleeve (11).
7. a kind of overload protection arrangement for the manual shaft of Electric Actuator according to claim 6, it is characterised in that:
The cross section of inserted link (30) is hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822095989.5U CN209294280U (en) | 2018-12-13 | 2018-12-13 | A kind of overload protection arrangement for the manual shaft of Electric Actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822095989.5U CN209294280U (en) | 2018-12-13 | 2018-12-13 | A kind of overload protection arrangement for the manual shaft of Electric Actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209294280U true CN209294280U (en) | 2019-08-23 |
Family
ID=67654663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822095989.5U Active CN209294280U (en) | 2018-12-13 | 2018-12-13 | A kind of overload protection arrangement for the manual shaft of Electric Actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209294280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199872A (en) * | 2021-04-13 | 2022-10-18 | 成都极米科技股份有限公司 | Support mechanism and projector adopting same |
-
2018
- 2018-12-13 CN CN201822095989.5U patent/CN209294280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115199872A (en) * | 2021-04-13 | 2022-10-18 | 成都极米科技股份有限公司 | Support mechanism and projector adopting same |
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