CN105114269B - Linear actuator - Google Patents
Linear actuator Download PDFInfo
- Publication number
- CN105114269B CN105114269B CN201510579210.5A CN201510579210A CN105114269B CN 105114269 B CN105114269 B CN 105114269B CN 201510579210 A CN201510579210 A CN 201510579210A CN 105114269 B CN105114269 B CN 105114269B
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- China
- Prior art keywords
- screw rod
- base
- driving screw
- shape
- housing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Linear actuator belongs to driving machinery；Driving screw rod centering housing and base are outwardly and inwardly respectively configured on the downside of housing assembly, screw rod centering housing will be driven by bolt group, base is fixedly mounted with integrally with housing assembly, what driving screw rod was axially movable is inserted into housing assembly, on base and driving screw rod centering housing, equipped sprocket wheel nut is threadedly coupled on sidepiece on the drive screw, chain set is fitted on sprocket wheel nut, the two ends of chain pass through the first fastener and a left side respectively, one end connection of the shape-memory polymer driver on right side, it is left, the other end of the shape-memory polymer driver on right side is connected by the second fastener with base respectively；This device replaces traditional mechanical system to drive using shape-memory polymer driver, while simplifying driving system structure, reducing control process complexities, the application in acid or alkali environment has been adapted to again, has the characteristics that structure novelty is simple, easy to control, corrosion-resistant, light weight.
Description
Technical field
The invention belongs to driving machinery, relates generally to a kind of straight line formed with shape-memory polymer driver and drives
Dynamic device.
Background technology
Driver is widely used a kind of mechanical device in engineering practice.At present, most of drivers are using tradition
Type of drive, and form parts majority be metal material.But.Operating mode is extremely complex in engineering practice, more especially
The driver that special environment is such as used in strong acid, highly basic under the conditions of highly corrosive, the corrosion to resisting surrounding medium
It is required that high, the existing driver based on metal material has been unable to meet its requirement.As it can be seen that exploitation one kind especially has
The linear actuator of highly corrosion resistant has particularly important engineering significance.
The content of the invention
The purpose of the invention is that there are complicated and quality for the existing driver based on metal material
Weight, is especially unsuitable for the deficiency to work under the environment such as strong acid, highly basic, and design provides a kind of linear actuator of new construction, reaches
Simplify structure, the purpose that mitigates weight, can be used in acid or alkali environment.
What the purpose of the invention was realized in：A kind of linear actuator, in housing assembly lower outside central part
Configuration driven screw rod centering housing, base is configured inside the housing assembly on position, screw rod will be driven to feel relieved by bolt group
Housing, base and housing assembly are packed in one, and what driving screw rod was axially movable is inserted into housing assembly, base and drive successively
On dynamic screw rod centering housing, the upper end of the driving screw rod can stretch on housing assembly top, the driving screw rod following side
With driving screw rod centering housing radially, circumferentially positioned cooperation, it is described driving screw rod upper lateral part on, positioned at chassis interior screw thread
The equipped sprocket wheel nut of connection, the angle model for driving the thread helix lift angle angle value of screw rod and sprocket wheel nut in mutual self-locking
In enclosing, chain set is fitted on sprocket wheel nut, and the two ends of the chain are remembered by the shape of the first fastener and left and right side respectively
Recall one end connection of polymer actuator, the other end of the shape-memory polymer driver of the left and right side is respectively by the
Two fasteners are connected with base, and the shape-memory polymer driver in the left side is in the reset condition of folding shrinking, right side
Shape-memory polymer driver be in the predeformation state stretched of expansion；The sprocket wheel nut, driving screw rod, bolt group,
Housing assembly, base, chain, first and second fastener and driving screw rod centering housing use the polymeric material of corrosion resistance
Material is manufactured.
The invention has extremely strong rotproofness using polymer, is applied to actuator part design, instead of gold
Belong to material, available for highly corrosive environments such as strong acid, highly basic, and using the shape memory characteristic of shape-memory polymer, with shape
Shape memory effect replaces traditional Mechanical Driven mode, simplifies driving system structure, reduces the complexity of control process, has knot
The characteristics of structure is simply novel, easy to control, corrosion-resistant, light weight, has expanded the scope of application of driver.
Brief description of the drawings
Fig. 1 is linear actuator general structure schematic diagram；
Fig. 2 is sectional view along A-A in Fig. 1.
Piece number explanation in figure：
1st, sprocket wheel nut, 2, driving screw rod, 3, bolt group, 4, housing assembly, 5, base, 6, chain, the 7, first fastener,
8th, shape-memory polymer driver, the 9, second fastener, 10, driving screw rod centering housing.
Embodiment
The invention embodiment is described in detail below in conjunction with the accompanying drawings.A kind of linear actuator, it is total in housing
Configuration driven screw rod centering housing 10, base 5 is configured inside the housing assembly 4, is passed through on into 4 lower outside centres
Bolt group 3 will drive screw rod centering housing 10, base 5 and housing assembly 4 to be packed in one, and driving screw rod 2 is axially movable
It is inserted into successively on housing assembly 4, base 5 and driving screw rod centering housing 10, the upper end of the driving screw rod 2 can be in housing
4 top of assembly is stretched, it is described driving 2 following side of screw rod with driving screw rod centering housing 10 radially, circumferentially positioned cooperation, in institute
State on driving 2 upper lateral part of screw rod, equipped sprocket wheel nut 1, the driving screw rod 2 and sprocket wheel spiral shell are connected positioned at 5 internal whorl of base
The thread helix lift angle angle value of mother 1 is in the angular range of mutual self-locking, and 6 sets of chain is fitted on sprocket wheel nut 1, the chain
6 two ends are connected by the first fastener 7 with one end of the shape-memory polymer driver 8 of left and right side respectively, described
The other end of the shape-memory polymer driver 8 of left and right side is connected by the second fastener 9 with base 5 respectively, the left side
Shape-memory polymer driver 8 be in the reset condition of folding shrinking, the shape-memory polymer driver 8 on right side is in
The predeformation state stretched is unfolded；The sprocket wheel nut 1, driving screw rod 2, bolt group 3, housing assembly 4, base 5, chain 6, the
First, two fasteners 7,9 and driving screw rod centering housing 10 are manufactured using the polymeric material of corrosion resistance.
Realize the course of work of the forward drive of driver：To the resistance screen built in shape-memory polymer driver 8
Electrified regulation, makes temperature reach shape-memory polymer transition temperature, at the shape memory effect driving of shape-memory polymer
Recovery of shape occurs in the right side shape-memory polymer driver 8 of expansion predeformation state and folds, so that 6 edge of drive chain
The certain displacement of clockwise movement, chain 6, along corresponding angle is rotated clockwise, drive screw rod 2 along driving with movable sprocket nut 1
Spiral shell housing 10 of directly feeling relieved moves linearly, while the left side shape-memory polymer driver 8 in folded state occurs
Predeformation and be unfolded, realize the forward drive of driver.Activation temperature by controlling shape-memory polymer driver 8 can
Its deflection is controlled, makes the corresponding displacement of 6 clockwise movement of chain, the clockwise angle with movable sprocket nut 1, so as to control driving
The positive output displacement of device.
Realize the course of work of the reverse drive of driver：To the resistance screen built in shape-memory polymer driver 8
Electrified regulation, makes temperature reach shape-memory polymer transition temperature, at the shape memory effect driving of shape-memory polymer
Recovery of shape occurs in the left side shape-memory polymer driver 8 of expansion predeformation state and folds, so that 6 edge of drive chain
The certain displacement of counterclockwise movement, chain 6 rotate counterclockwise corresponding angle with movable sprocket nut 1, drive screw rod 2 along driving
Screw rod centering housing 10 moves linearly, while the right side shape-memory polymer driver 8 in folded state occurs
Predeformation and be unfolded, realize the reverse drive of driver.Activation temperature by controlling shape-memory polymer driver 8 can
Its deflection is controlled, makes the corresponding displacement of 6 counterclockwise movement of chain, the reverse angle with movable sprocket nut 1, so as to control driving
The reverse output displacement of device.
When stopping is to the resistance screen electrified regulation built in shape-memory polymer driver 8, sprocket wheel nut 1 is with respect to base
5 transfixions, ensure that driving screw rod 2 is static between sprocket wheel nut 1 and driving screw rod 2 by self-locking.
Claims (1)
- A kind of 1. linear actuator, it is characterised in that：Configuration driven screw rod is determined on housing assembly (4) lower outside centre Heart housing (10), the configuration base (5) inside the housing assembly (4), screw rod centering housing will be driven by bolt group (3) (10), base (5) is packed in one with housing assembly (4), and what driving screw rod (2) was axially movable is inserted into housing assembly successively (4), on base (5) and driving screw rod centering housing (10), the upper end of the driving screw rod (2) can be on housing assembly (4) Portion stretches, it is described driving screw rod (2) following side with driving screw rod centering housing (10) radially, circumferentially positioned cooperation, described Drive on screw rod (2) upper lateral part, connect equipped sprocket wheel nut (1) positioned at base (5) internal whorl, the driving screw rod (2) and For the thread helix lift angle angle value of sprocket wheel nut (1) in the angular range of mutual self-locking, chain (6) set fits over sprocket wheel nut (1) on, the two ends of the chain (6) pass through the first fastener (7) and the shape-memory polymer driver of left and right side respectively (8) one end connection, the other end of the shape-memory polymer driver (8) of the left and right side pass through the second fastener respectively (9) it is connected with base (5), the shape-memory polymer driver (8) in the left side is in the reset condition of folding shrinking, right side Shape-memory polymer driver (8) be in the predeformation state stretched of expansion；The sprocket wheel nut (1), driving screw rod (2), bolt group (3), housing assembly (4), base (5), chain (6), first and second fastener (7,9) and driving screw rod centering shell Body (10) is manufactured using the polymeric material of corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579210.5A CN105114269B (en) | 2015-09-06 | 2015-09-06 | Linear actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579210.5A CN105114269B (en) | 2015-09-06 | 2015-09-06 | Linear actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114269A CN105114269A (en) | 2015-12-02 |
| CN105114269B true CN105114269B (en) | 2018-05-01 |
Family
ID=54662346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510579210.5A Expired - Fee Related CN105114269B (en) | 2015-09-06 | 2015-09-06 | Linear actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114269B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10704632B2 (en) * | 2018-09-21 | 2020-07-07 | Global Technology Operations Llc | Transmission clutch assembly |
| CN110397033B (en) * | 2019-07-26 | 2024-01-26 | 安徽理工大学 | Bolt-forming tool and multi-transverse bolt soil anchor prepared by using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202215708U (en) * | 2011-08-31 | 2012-05-09 | 嘉兴学院 | Nut loop bar device of linear actuator |
| CN103352787A (en) * | 2013-07-12 | 2013-10-16 | 江苏大学 | Rotary device based on chain transmission and driven by shape memory effect |
| CN203660923U (en) * | 2014-01-10 | 2014-06-18 | 长安大学 | Humanoid linear actuator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2355728A (en) * | 1999-10-27 | 2001-05-02 | Anson Medical Ltd | Tubular medical implants and methods of manufacture |
-
2015
- 2015-09-06 CN CN201510579210.5A patent/CN105114269B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202215708U (en) * | 2011-08-31 | 2012-05-09 | 嘉兴学院 | Nut loop bar device of linear actuator |
| CN103352787A (en) * | 2013-07-12 | 2013-10-16 | 江苏大学 | Rotary device based on chain transmission and driven by shape memory effect |
| CN203660923U (en) * | 2014-01-10 | 2014-06-18 | 长安大学 | Humanoid linear actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114269A (en) | 2015-12-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20180906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |