CN101314447A - Inversely winding type constant-force spring mechanism - Google Patents
Inversely winding type constant-force spring mechanism Download PDFInfo
- Publication number
- CN101314447A CN101314447A CNA2007100415137A CN200710041513A CN101314447A CN 101314447 A CN101314447 A CN 101314447A CN A2007100415137 A CNA2007100415137 A CN A2007100415137A CN 200710041513 A CN200710041513 A CN 200710041513A CN 101314447 A CN101314447 A CN 101314447A
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- Prior art keywords
- force spring
- wheel
- constant
- scrolling
- constant force
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Abstract
The invention discloses a back-scrolling type constant-force spring mechanism, comprising a driven wheel, a scrolling wheel and an output wheel, wherein, one end of a constant-force spring is scrolled and sleeved on the driven wheel, while the other end of the constant-force spring is fixed and back scrolled on the scrolling wheel, and the output wheel and the scrolling wheel are fixedly connected and are coaxial. The rectilinear motion of the constant-force spring is changed into the rotation motion through back scrolling the constant-force spring on the scrolling wheel. The constant-force spring is back scrolled on a scrolling wheel with a relatively large diameter, when an operating stroke is longer, a torque generated by the constant-force spring during the rotating process is maintained constant, and then the torque generated by the constant-force spring is changed into pulling force, so the generated pulling force is also maintained constant.
Description
Affiliated technical field
The invention discloses a kind of constant-force spring mechanism.
Background technology
At present, being used for the constant force spring of all kinds of balancing devices, all is directly constant force spring to be drawn back or pushes open during use, and moving linearly makes constant force spring thrust output or pulling force.Its shortcoming is when forced stroke is longer, and the variation of thrust or pulling force is just bigger, is difficult to reach the requirement of constant force.
Summary of the invention
It is longer to the purpose of this invention is to provide a kind of forced stroke, the constant-force spring mechanism that tension variations is less.
The present invention includes follower, furl wheel and output wheel, constant force spring one end volume is enclosed within follower, and the constant force spring other end is fixed and warp is furling on the wheel; Output wheel with furl wheel and captive joint, and be coaxial.
The invention has the beneficial effects as follows such: constant force spring back-roll is being furled on the wheel, making the straight-line motion of constant force spring, becoming and rotatablely move.Constant force spring is rewound relatively large furling on the wheel of diameter, make constant force spring produce moment of torsion, because every layer of constant force spring is very little with respect to the change in radius that furls wheel around the change in radius that gets on, so when forced stroke is longer, it is constant that the moment of torsion that constant force spring produces in rotary course keeps, and then, changing into pulling force with the moment of torsion that constant force spring produces, such pulling force that produces also keeps constant.
Description of drawings
Fig. 1 is a structural representation of the present invention.
1. follower 2. constant force springs 3. furl wheel 4. bolt of rear end plates 5. output wheels 6. ropes
The specific embodiment
Below in conjunction with description of drawings embodiments of the invention are further described.
The present invention includes follower 1, furl wheel 3 and output wheel 5, constant force spring 2 one ends volume is enclosed within on the follower 1, and constant force spring 2 other ends are fixed and warp is furling on the wheel 3; Output wheel 5 with furl wheel 3 and captive joint, and be coaxial; The described wheel diameter that furls is greater than follower.
Principle of work of the present invention: the constant force spring volume of moulding is enclosed within on the follower, one end of constant force spring is fixed on bolt of rear end plate furls on the wheel, with furl the wheel the coaxial output wheel that is provided with, furl wheel and captive joint, twining rope on the output wheel, when pulling out rope with output wheel, output wheel drives and furls the wheel clickwise, the follower left-hand revolution, like this, constant force spring is being furled on the wheel by warp; When payout, the constant force spring clickwise, pulling furls the wheel left-hand revolution, makes constant force spring automatically revert on the follower, simultaneously rope is furled back on the output wheel.Pulling out and reclaiming, exportable constant pulling force by rope.As rope being changed into electric wire or flexible pipe, also can become the retracting device of a constant force.
Claims (2)
1. inversely winding type constant-force spring mechanism is characterized in that: comprise follower, furl wheel and output wheel, constant force spring one end volume is enclosed within follower, and the constant force spring other end is fixed and warp is furling on the wheel; Output wheel with furl wheel and captive joint, and be coaxial.
2. inversely winding type constant-force spring mechanism according to claim 1 is characterized in that: the described wheel diameter that furls is greater than the follower diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100415137A CN101314447A (en) | 2007-05-31 | 2007-05-31 | Inversely winding type constant-force spring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100415137A CN101314447A (en) | 2007-05-31 | 2007-05-31 | Inversely winding type constant-force spring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101314447A true CN101314447A (en) | 2008-12-03 |
Family
ID=40105611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100415137A Pending CN101314447A (en) | 2007-05-31 | 2007-05-31 | Inversely winding type constant-force spring mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101314447A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016190A (en) * | 2014-06-12 | 2014-09-03 | 北京华航无线电测量研究所 | Device for tightening and loosening cable around large-diameter rotating shaft |
| CN107324160A (en) * | 2017-06-29 | 2017-11-07 | 叶中樵 | The automatic receiving/releasing control device of engineering cable based on constant force principle |
| CN112594908A (en) * | 2020-12-09 | 2021-04-02 | 珠海格力电器股份有限公司 | Rolling mechanism and air conditioner |
-
2007
- 2007-05-31 CN CNA2007100415137A patent/CN101314447A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016190A (en) * | 2014-06-12 | 2014-09-03 | 北京华航无线电测量研究所 | Device for tightening and loosening cable around large-diameter rotating shaft |
| CN104016190B (en) * | 2014-06-12 | 2017-01-04 | 北京华航无线电测量研究所 | A kind of large-diameter shaft cable is around axle draw off gear |
| CN107324160A (en) * | 2017-06-29 | 2017-11-07 | 叶中樵 | The automatic receiving/releasing control device of engineering cable based on constant force principle |
| CN112594908A (en) * | 2020-12-09 | 2021-04-02 | 珠海格力电器股份有限公司 | Rolling mechanism and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081203 |