CN206283380U - A kind of screw mandrel damping mechanism - Google Patents
A kind of screw mandrel damping mechanism Download PDFInfo
- Publication number
- CN206283380U CN206283380U CN201621219505.8U CN201621219505U CN206283380U CN 206283380 U CN206283380 U CN 206283380U CN 201621219505 U CN201621219505 U CN 201621219505U CN 206283380 U CN206283380 U CN 206283380U
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- China
- Prior art keywords
- screw mandrel
- damping mechanism
- torsion spring
- axle sleeve
- fixed
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Abstract
The utility model is mainly concerned with a kind of screw mandrel damping mechanism, and the technical scheme of use is that anchor ear has the relatively-stationary torsion spring in one end on screw mandrel.The utility model simple structure is designed, and small volume ingenious can realize the damped motion of motor lead screw.
Description
Technical field
The utility model is related to motor to drive field, especially relevant with a kind of screw mandrel damping mechanism.
Background technology
The application of small machine more and more extensively, after motor drives output, is commonly used and is turned circular motion by screw mandrel at present
It is changed into linear motion.Screw mandrel is rotated and reverse, and it is reciprocal back and forth that different rotation direction line correspondences are moved.
Lowering or hoisting gear is driven by motor, is finally to realize a certain mechanism's folding of electrical equipment, the mechanism needs to the greatest extent may be used when falling after rise
Can be slow, can so prevent from crushing or other potential safety hazard accidents.The lowering or hoisting gear very little of electrical equipment inside is typically mounted at,
Install damping mechanism additional above also cumbersome, the present inventor is by repeatedly exploitation and tests, and designs finally suitable for small-sized
Thus damping mechanism on elevating mechanism, this case produces.
Utility model content
The purpose of this utility model is to provide a kind of screw mandrel damping mechanism, and simple structure is designed, and small volume being capable of ingenious reality
The damped motion of existing screw mandrel.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of screw mandrel damping mechanism, anchor ear has the relatively-stationary torsion spring in one end on screw mandrel.
Described screw mandrel end is fixed with axle sleeve, and torsion spring anchor ear is outside axle sleeve.
Described screw mandrel end housings fixed end lid, one end be connected on end cap formed be relatively fixed it is motionless.
Described axle sleeve is connected with screw mandrel by bearing pin.
Described axle sleeve is fixed with wire rod thread.
On described screw mandrel supporting casing, end is stretched out outside casing, and described torsion spring is located at the outside of casing.
Described end cap is fixed on the outer surface of casing.
It is of the present utility model to have the advantages that：
1st, in the utility model, when motor drive screw a direction is rotated, torsion spring is reversed and struts, between screw mandrel
Space it is increasing, therefore the rotation of without prejudice to screw mandrel completely.When motor is rotated backward, torsion spring is gradually tightened, screw mandrel
Rotate gradually slow, reach damping.
2nd, axle sleeve can so avoid the metal between torsion spring and screw mandrel using having certain soft material to be made
Friction, effective noise reduction function increases the service life.
3rd, outside end cap cover is closed, and not only a fixed form is provided to torsion spring, while being also prevented from outside debris falls into resistance
Buddhist nun mechanism, keeps tidiness so that product globality is strong.
Brief description of the drawings
Fig. 1 is the generalized section of the utility model preferred embodiment；
Fig. 2 is the external structure schematic diagram of the utility model preferred embodiment.
Specific embodiment
Referring to Fig. 1 and Fig. 2, the utility model preferred embodiment is further elaborated.
A kind of screw mandrel damping mechanism, the part being mainly concerned with have motor-driven screw mandrel 1, casing 2, torsion spring 3, axle sleeve 4,
End cap 5.
The two ends of screw mandrel 1 are supported on casing 2 by bearing 6, and the utility model is mainly one end wherein and is changed
Enter, therefore one end of damping mechanism is only shown in figure.The end of screw mandrel 1 is stretched out outside casing 1 in the present embodiment, the table of screw mandrel 1
One axle sleeve 4 of surface cover, axle sleeve 4 can be using having soft high-abrasive material be made, such as plastics, silica gel etc., in axle sleeve 4
Outside anchor ear has torsion spring 3.So set mainly prevents the metal friction between screw mandrel 1 and torsion spring 3 by axle sleeve 4, and reduction is made an uproar
Sound and increase the service life.Axle sleeve 4 can be various with the fixed form of screw mandrel 1, by radially across screw mandrel 1 in the present embodiment
Realize fixing with the bearing pin 7 of axle sleeve 4.Can also be other modes, such as the screw thread of axle sleeve 4 is rotated with screw mandrel 1 etc., every reality
Both fixed modes existing.
In this embodiment, the outside of torsion spring 3 is covered with end cap 5, and end cap 5 is connected with the outer surface of casing 2, just to torsion
It is convenient that the fixed form of spring 3 is provided, while be also prevented from outside debris dropping into damping space, influences work.The one of torsion spring 3
End is connected with end cap 5, is generally fixed one end with respect to motor, and the body of torsion spring 3 gets up with the anchor ear of axle sleeve 4.
During utility model works, motor drive screw 1 rotates and reverse two kinds of motion states, when one of which motion
When state starts, such as rotate forward, torsion spring 3 tightens direction just with the motion state of screw mandrel 1 conversely, now torsion spring 3 is with silk
The rotation of bar 1 is gradually reversely strutted, and the gap between torsion spring 3 and screw mandrel 1 is more and more loose, the work shape of complete without prejudice to screw mandrel 1
State.When motor drive screw 1 is inverted, torsion spring 3 is rotated with screw mandrel 1, is increasingly tightened, and anchor ear dynamics is gradually increased, resistance
Increase, therefore screw mandrel 1 rotates also gradually slack-off, realizes damped motion.
Above is one kind of the utility model preferred embodiment, made under the utility model concept thereof it is some its
He is simple to replace and changes, and should all be considered as belonging to protection category of the present utility model.
Claims (5)
1. a kind of screw mandrel damping mechanism, it is characterised in that：Anchor ear has the relatively-stationary torsion spring in one end on screw mandrel；Described screw mandrel
End is fixed with axle sleeve, and torsion spring anchor ear is outside axle sleeve；Described screw mandrel end housings fixed end lid, one end is connected to end cap
Upper formation is relatively fixed motionless.
2. a kind of screw mandrel damping mechanism as claimed in claim 1, it is characterised in that：Described axle sleeve is connected with screw mandrel by bearing pin
Connect.
3. a kind of screw mandrel damping mechanism as claimed in claim 1, it is characterised in that：Described axle sleeve is fixed with wire rod thread.
4. a kind of screw mandrel damping mechanism as claimed in claim 1, it is characterised in that：On described screw mandrel supporting casing, end
Stretch out outside casing, described torsion spring is located at the outside of casing.
5. a kind of screw mandrel damping mechanism as claimed in claim 1, it is characterised in that：Described end cap is fixed on the appearance of casing
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219505.8U CN206283380U (en) | 2016-11-11 | 2016-11-11 | A kind of screw mandrel damping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219505.8U CN206283380U (en) | 2016-11-11 | 2016-11-11 | A kind of screw mandrel damping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206283380U true CN206283380U (en) | 2017-06-27 |
Family
ID=59082302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621219505.8U Active CN206283380U (en) | 2016-11-11 | 2016-11-11 | A kind of screw mandrel damping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206283380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300198A (en) * | 2017-07-19 | 2017-10-27 | 宁波方太厨具有限公司 | A kind of elevating mechanism and application have the range hood of the elevating mechanism |
-
2016
- 2016-11-11 CN CN201621219505.8U patent/CN206283380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107300198A (en) * | 2017-07-19 | 2017-10-27 | 宁波方太厨具有限公司 | A kind of elevating mechanism and application have the range hood of the elevating mechanism |
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