CN1782465A - Flexible driving screw with energy storage - Google Patents
Flexible driving screw with energy storage Download PDFInfo
- Publication number
- CN1782465A CN1782465A CN 200410052479 CN200410052479A CN1782465A CN 1782465 A CN1782465 A CN 1782465A CN 200410052479 CN200410052479 CN 200410052479 CN 200410052479 A CN200410052479 A CN 200410052479A CN 1782465 A CN1782465 A CN 1782465A
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- China
- Prior art keywords
- helical spring
- energy storage
- transmission shaft
- keyway
- flexible
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Abstract
The energy storing flexible driving screw mechanism is suitable for mechanical screw transmission with limited driving moment to realize the conversion from rotation to axial linear displacement. It includes driving shaft, helical spring, key way on the driving shaft, block, front stop unit, back stop unit, etc. It realizes the conversion from rotation to axial linear displacement by means of that the clamping pin on the block outside the helical spring is driven to move linearly owing to the rotation of some section of the helical spring under the driving of the rotating shaft. The mechanism can absorb and limit the effect of abrupt and sustained block displacement overload on the driving source and store the driving energy in mechanical energy mode for the block displacement after the overload disappears. The present invention has the advantages of simple structure and easy manufacture.
Description
(1) technical field
The present invention relates to a kind of flexible screw drive structure, be applicable to the mechanical screws formula transmission of various limited driving moments, realize becoming the application of axial direction top offset by rotation with energy storage.
(2) background technique
In traditional mechanical screws driving mechanism, when the moment of driving source is limited moment, become by rotation in the process of axial direction top offset, displacement excess load on the unexpected axial direction tends to cause between driving source stuck or drive screw and the driving block stuck mutually, thereby can cause the energy consumption of driving source to increase, efficient seriously reduces, shorten mechanical life even damage driving source equipment.This problem particularly looms large on the small-sized and microelectromechanicpositioning control gear that adopts powered battery and energy-saving type.
(3) summary of the invention
In order to overcome the defective of traditional mechanical screws driving mechanism, the invention provides a kind of flexible drive screw structure of novelty, this structure not only only can absorb and limit the slider displacement excess load on the axial direction of sudden and persistency, and can with driving source the driving energy store in the mode of mechanical energy, in case the slider displacement excess load disappears, can be pushed to original preposition by slide block.
The technical solution adopted for the present invention to solve the technical problems is:
Cancel the rigid thread structure on traditional mechanical transmission screw rod, change into and put the coiled compression type spring that internal diameter is slightly larger than garden rod type transmission shaft external diameter on common garden type transmission shaft, its length is slightly larger than the keyway length on the transmission shaft.Transmission shaft vertically on have one and connect or do not connect the keyway of the length in the transmission shaft center of circle greater than slider displacement length, two end points of coil type spring embed in the keyway respectively symmetrically, and can move freely vertically in keyway.The function that becomes straight-line displacement by rotation during application is realized by the promotion of helical spring certain section helical that drives at transmission shaft by being enclosed within.
Owing between transmission shaft and slide block, promote by helical spring helical, there is not the contact of rigidity, therefore belong to a kind of driving of flexibility.In case the resistance accident increase owing to the outside on the slide block causes loading excessive, when surpassing helical spring elastic limit, helical spring will be compressed, when the additional friction of outside disappears, the energy that is accumulated on the helical spring will be released, and promotes slide block and moves to the precalculated position along rectilinear direction.
The invention has the beneficial effects as follows:
Can in the process of transmission, absorb and limit slider displacement excess load on the axial direction of sudden and persistency to the influence of driving source, and can with driving source the driving energy store in the mode of mechanical energy, in case the slider displacement excess load disappears, can be pushed to original preposition by slide block, also has advantage simple in structure, easy to process simultaneously.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
(5) embodiment
The present invention is further described below in conjunction with drawings and Examples.
Illustrated is a kind of flexible screw drive structure with energy storage, and it comprises that transmission shaft (1), internal diameter are slightly larger than the coiled compression type spring (2) of garden type transmission shaft external diameter, the keyway (3) on the transmission shaft, slide block (4), front limit (5), the spacing parts such as (6) in back.Transmission shaft (1) is in coiled compression type spring (2); Transmission shaft vertically on have the keyway (3) that a length that connects or do not connect the transmission shaft center of circle approximates the linear slider shift length; The length of coiled compression type spring (2) is slightly larger than keyway (3) length on the transmission shaft, and two end points of coil type spring (2) embed respectively in the keyway (3) symmetrically, and can move freely vertically in keyway.The function that becomes straight-line displacement by rotation during application is by being enclosed within bayonet lock (4) on the outer slide block of helical spring along on the rectilinear direction, because the promotion of certain section helical realizes on the helical spring of the rotation of transmission shaft and driven rotary.
Design feature:
1. power transmission shaft (1) and the coaxial installation of helical spring (2).
2. two end points of helical spring (2) radially insert keyway (3) and the quilt on the power transmission shaft (1) It blocks and drives, therewith rotation.
Two end points of helical spring (2) can on former and later two directions in keyway (3) vertically Move freely.
4. helical spring (2) applies effect by himself helical to the bayonet lock on the slide block (4) and realizes gentle The property transmission. When slide block (4) arrives front and back spacing limit (5) (6) or runs into extra duty, Can automatically skid and prevent that drive source overload damage and drive disk assembly are locked.
5. helical spring (2) doubles as the energy storage component into this transmission device, and the additional friction when the outside disappears The time, the energy that is accumulated on the helical spring will be released, and promotes slide block (4) along straight line Direction moves to the precalculated position.
6. the maximum driving torque of this transmission device and maximum axial thrust can be passed through adjustable screw spring (2) Rigidity change.
Claims (6)
1. the flexible screw drive structure with energy storage comprises: parts such as the keyway on transmission shaft, helical spring, the transmission shaft, slide block, front limit and back are spacing.It is characterized in that: transmission shaft and the coaxial installation of helical spring; Helical spring two end points radially insert the keyway on the transmission shaft and are blocked and drive by it and rotation therewith; Helical spring applies the flexible transmission of effect realization by the helical of himself to the bayonet lock on the slide block, promotes slide block and moves forward and backward along axial direction.Helical spring double as simultaneously is the energy storage component of this transmission device, and when the additional friction of outside disappeared, the energy that is accumulated on the helical spring will be released, and moves to the precalculated position.
2. the flexible screw drive structure with energy storage according to claim 1 is characterized in that being in rotary state as the spring of flexible transmission and energy storage component when working.
3. the flexible screw drive structure with energy storage according to claim 1 is characterized in that helical spring two end points can move freely in the keyway on transmission shaft vertically on former and later two directions.
4. the flexible screw drive structure with energy storage according to claim 1, it is characterized in that along transmission shaft vertically on have a keyway that connects or do not connect the transmission shaft center of circle, an end of keyway can connect or not connect the end face of transmission shaft vertically.
5. the flexible screw drive structure with energy storage according to claim 1 is characterized in that the one or both ends that slide block moves have limit stoper rigidity or flexible.
6. the flexible screw drive structure with energy storage according to claim 1 is characterized in that the maximum driving torque of this transmission device and maximum axial thrust can change by the rigidity of adjusting color screw spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052479 CN1782465A (en) | 2004-12-02 | 2004-12-02 | Flexible driving screw with energy storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410052479 CN1782465A (en) | 2004-12-02 | 2004-12-02 | Flexible driving screw with energy storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1782465A true CN1782465A (en) | 2006-06-07 |
Family
ID=36772959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410052479 Pending CN1782465A (en) | 2004-12-02 | 2004-12-02 | Flexible driving screw with energy storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1782465A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514903B (en) * | 2008-07-04 | 2015-02-04 | 株式会社大福 | Screw driven conveyance device |
| CN112901791A (en) * | 2019-12-04 | 2021-06-04 | 伊希欧1控股有限公司 | Expansion valve |
| CN115765309A (en) * | 2022-12-21 | 2023-03-07 | 江苏常晋智能电器有限公司 | Flexible speed reduction motor with double output shafts working in series |
| CN117800423A (en) * | 2024-02-28 | 2024-04-02 | 山东万佳环境工程有限公司 | Integrated domestic sewage denitrification and decarbonization equipment |
-
2004
- 2004-12-02 CN CN 200410052479 patent/CN1782465A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514903B (en) * | 2008-07-04 | 2015-02-04 | 株式会社大福 | Screw driven conveyance device |
| CN112901791A (en) * | 2019-12-04 | 2021-06-04 | 伊希欧1控股有限公司 | Expansion valve |
| CN112901791B (en) * | 2019-12-04 | 2023-04-28 | 伊希欧1控股有限公司 | Expansion valve |
| CN115765309A (en) * | 2022-12-21 | 2023-03-07 | 江苏常晋智能电器有限公司 | Flexible speed reduction motor with double output shafts working in series |
| CN117800423A (en) * | 2024-02-28 | 2024-04-02 | 山东万佳环境工程有限公司 | Integrated domestic sewage denitrification and decarbonization equipment |
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Legal Events
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| 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 |