CN107965520A - It is a kind of can optional position locking linear motion device - Google Patents
It is a kind of can optional position locking linear motion device Download PDFInfo
- Publication number
- CN107965520A CN107965520A CN201711214014.3A CN201711214014A CN107965520A CN 107965520 A CN107965520 A CN 107965520A CN 201711214014 A CN201711214014 A CN 201711214014A CN 107965520 A CN107965520 A CN 107965520A
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- China
- Prior art keywords
- locking
- spring
- self
- bar
- bar axis
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/10—Arrangements for locking the bearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
It is a kind of can optional position locking linear motion device, it includes a bar axis for linear motion, one self-locking spring inside pins the bar axis to prevent its locking device for making to move axially through housing component, one end of the bar axis is equipped with the jointing being connected with motion, the other end of bar axis is equipped with the maximum displacement of limitation bar axis, to prevent from deviating from the stopper ring of housing component during the movement of bar axis；The locking device, which includes one, can be placed in plectrum card slot and unlock spring or pin the release plectrum of bar axis, and bar axis is produced relative motion with locking device and housing component or is relatively fixed；The spring includes the cylindrical bar upward around bar axis, self-locking left spring and the right spring of self-locking with winding direction opposite each other winding thereon, the self-locking left spring and the right spring of self-locking are respectively provided with a normal direction internal diameter for being slightly less than cylindrical bar bar footpath, to make self-locking left spring and the right spring of self-locking tightly to clamp cylindrical bar.
Description
Technical field
The present invention relates to it is a kind of can optional position locking linear motion device, which has what is locked in normal direction
Bar axis；And after relieving mechanism release, bar axis can axially move to optional position under external force.
Background technology
General linear motion device mainly has two kinds of devices of ball-screw and linear steering, and ball-screw apparatus relies on spiral shell
Female inner peripheral surface and the screw thread of the outer circumferential surface of lead screw shaft form rolling groove, are linear motion by convert rotational motion；Linear steering
Device is formed with ball rolling groove, in the sliding block and the track in sliding block and the track both sides being oriented to the sliding block
Between position ball rolling groove in be accommodated with multiple balls, ball is rolled with the movement of the sliding block.
Above two linear motion device machining accuracy and complexity are higher, and matched position locking mechanism according to
Cooperation by mechanical closing piece and motive position is realized, is typically only capable to set latch functions in several precalculated positions.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and a kind of relatively reduced volume of energy is provided, gross weight
Amount is light, and part is simple to manufacture, and clearance is small, and precision is high, can be linearly moved and pins to realize that position is adjusted, and is held with two-way
Loading capability can optional position locking linear motion device.
The purpose of the present invention is by following technical solution to complete, it is a kind of can optional position locking linear motion dress
Put, it includes a bar axis for linear motion, and a self-locking spring inside pins the bar axis to prevent it from running through housing
Part makees the locking device that moves axially, and one end of the bar axis is equipped with the jointing being connected with motion, bar axis it is another
End is equipped with the maximum displacement of limitation bar axis, to prevent from deviating from the stopper ring of housing component during the movement of bar axis；The locking device bag
Including one can be placed in plectrum card slot and unlock spring or pin the release plectrum of bar axis, and make bar axis and locking device and housing
Part produces relative motion or is relatively fixed.
As preferred：The spring is included the cylindrical bar upward around bar axis, is wound with winding direction opposite each other
Self-locking left spring and the right spring of self-locking thereon, the self-locking left spring and the right spring of self-locking are respectively provided with one and are slightly less than cylinder
The normal direction internal diameter in bar bar footpath, to make self-locking left spring and the right spring of self-locking tightly to clamp cylindrical bar；Self-locking left spring and
The outer end folding of the right spring of self-locking hooks the fluting terminated in respectively on end bushings and end tooth bushing；Self-locking left spring and the right bullet of self-locking
The inner of spring is engaged respectively within the notch of release plectrum, it is coaxial with cylindrical bar, and can be enclosed by means of discharging plectrum
Rotated around cylindrical bar.
As preferred：The release plectrum is stretched through inner housing and shell body, and due to acting on bullet on it
Spring tension force and keep it in original locked position；Release plectrum rotates self-locking left spring, the inner of the right spring of self-locking at the same time, its
Rotation direction is the winding of trip spring spring coil, amplifies its internal diameter；It is in inner surface and self-locking left spring, the self-locking right side of shell body
Inner housing internal diameter between spring only makes inner housing tightly slightly larger than self-locking left spring, the right SPRING METHOD OF STONE of self-locking to outside diameter
Surround clamping self-locking left spring, the right spring of self-locking.
As preferred：The housing component is by plectrum card slot, shell body, support base, end bushings and end tooth bushing group
Into support base is the connector with fixed mechanism opposite with jointing, and end bushings are not direct stands under load, and simply will be certainly
Lock spring leg, which is fixed, prevents its rotation, and support base is a carrying supporting item, which bears most of or almost complete
The service load in portion, and the other parts of housing component then have relatively small load, shell body both ends respectively with support base and end
The end crimping of portion's bushing；Self-locking left spring and the right spring of self-locking are served as a contrast mounted in two opposed end bushings and end tooth vertically
Between set, support base is coordinated with end tooth bushing by teeth, pivoting end tooth bushing change self-locking spring spring tension with
Spring is eliminated along the clearance on bar axis so that spring is adjacent to；Plectrum card slot is fixed on shell body, is arrived when rotating release plectrum
Release plectrum can be blocked during maximum position in the axial direction.
The beneficial effects of the present invention are：
First, self-locking mechanism, therefore the volume of the relatively reduced device of energy are designed with frictional force principle；
Second, big load is not required each housing to share, device gross weight is light；
Third, part is simple to manufacture, clearance is small, and precision is high.
The present invention has the relatively reduced volume of energy, and gross weight is light, and part is simple to manufacture, and clearance is small, and precision is high, can be linear
Move and pin to realize that position is adjusted, and there is two-way bearing capacity.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the side structure schematic diagram of the present invention.
Fig. 3 is the exploded view of each several part of the present invention.
Fig. 4 is the structure diagram of locking device of the present invention.
Wherein：10th, bar axis；11st, cylindrical bar；12nd, jointing；13rd, stopper ring；20th, locking device；21st, release is dialled
Piece；22nd, self-locking spring；23rd, self-locking spring；24th, inner housing；30th, housing component；31st, plectrum card slot；32nd, shell body；33rd, support
Seat；34th, end bushings；35th, end tooth bushing.
Embodiment
Below in conjunction with attached drawing, the present invention will be described in detail：Fig. 1,2 show it is a kind of can optional position locking it is straight
One original state of line telecontrol equipment, self-locking spring of the locking device 20 inside pin bar axis 10, prevent it from running through shell
Body part 20 moves axially.It is placed in by rotating counterclockwise release plectrum 21 as indicated by the arrows of fig. 2 in plectrum card slot 31, bullet
Spring unlocks, and bar axis 10 produces relative motion with locking device 20 and housing component 30 under external force, then unclamps and releases clockwise
Plectrum 21 is put, spring pins bar axis 10, and so straight-line motion mechanism is locked in new position.
Understand the embodiment of the present invention to be more detailed, refer to Fig. 3 and Fig. 4；10 one end of bar axis equipped with jointing 12 with
Motion connects, and 10 other end of bar axis limits the maximum displacement of bar axis 10 equipped with stopper ring 13, to prevent bar axis 10 from moving
When deviate from housing component 30.
Around cylindrical bar 11 on self-locking spring 22 and the axial direction of self-locking spring 23, it is wound in reciprocal winding direction
Thereon, and they have a normal direction internal diameter for being slightly less than bar footpath, to make two springs tightly to clamp cylindrical bar 11.
The outer end of self-locking spring 22 and self-locking spring 23 folding hooks the fluting terminated in respectively on end bushings 34 and end tooth bushing 35.Self-locking
The inner of spring 22 and self-locking spring 23 is engaged respectively within the notch of release plectrum 21, it is coaxial with cylindrical bar 11, and
And it can be rotated by means of discharging plectrum 21 around cylindrical bar 11.Release plectrum 21 is stretched through inner housing 24 and shell body 32, and
And keep it in original locked position due to acting on spring tension on it.Release plectrum 21 rotates self-locking spring at the same time
22nd, the inner of self-locking spring 23, its rotation direction are the windings of trip spring spring coil, amplify its internal diameter.It is in shell body 32
The internal diameter of inner housing 24 between inner surface and self-locking spring 22, self-locking spring 23 is only slightly larger than self-locking spring 22, self-locking spring
23 normal direction outside diameters, thus inner housing 24 is tightly surrounded fastening spring.
When release plectrum 21 starts to rotate, the interior inactive coil of self-locking spring unclamps winding, and its outside diameter is only slightly larger than
Its outside diameter before expanding, this is because its expansion is limited be subject to the inner surface of itself and inner housing 24；The release plectrum 21
Continuous moving sequentially from the adjacent spring coil of outer spring end to its interior inactive coil transmission, the expansion of the spring coil each to continue at this time by
The limitation of the inner surface close together to inner housing 24, finally results in the expansion of two all spring coils of spring, so as to discharge plectrum
21 can be such that bar axis 10 is moved axially by housing component 30.Release plectrum 21 is either rotated clockwise or rotated counterclockwise,
Inner housing 24 is therewith moved to equidirectional.
Housing component 30 of the present invention is by plectrum card slot 31, shell body 32, support base 33, end bushings 34 and end tooth
Bushing 35 forms, and support base 33 is the connector with fixed mechanism opposite with jointing 12, and end bushings 34 are not direct
Stand under load, and simply fixing 22 end feet of self-locking spring prevents its rotation, and support base 33 is one and carries supporting item, the supporting item
Most of or most service load is born, and the other parts of housing component 30 then have relatively small load, shell body
End of 32 both ends respectively with support base 33 and end bushings 34 crimps, therefore whole housing component is fixed.Self-locking bullet
Spring 22 and self-locking spring 23 are mounted between two opposed end bushings 34, end tooth bushings 35 vertically, support base 33 and end
Portion's tooth bushing 35 is coordinated by teeth, and pivoting end tooth bushing 35 changes the spring tension of self-locking spring 23 to eliminate spring along bar
Clearance on axis 10 is so that spring is adjacent to.Plectrum card slot 31 is fixed on shell body 32, and maximum is arrived when rotating release plectrum 21
Release plectrum 21 can be blocked during position in the axial direction.
Embodiment：The present invention sets two self-locking springs, to bear bidirectional load, i.e., the every of release plectrum is shared at one
Side is provided with a self-locking spring, and self-locking spring is installed between the bushing of housing component both ends vertically, opening on each bushing
Folding of the groove with unification respective springs hooks, and the rotation of around rod axis is prevented to fix the end feet of the spring and spring coil.The spring
The other end is connected on a release plectrum, which, which can manipulate two springs at the same time, makes it unclamp winding, is made with unclamping bar axis
It is moved axially through shell.The inner housing of an activity is cased with the outer ring of release plectrum and self-locking spring, for protecting bullet
Spring simultaneously keeps the end feet of spring and release plectrum to be engaged.
Only it is provided with one and connects between housing component and mechanism, i.e., with the support base axially supported.The other end is not straight
Receive load, and simply fixing spring leg prevents its rotation.Therefore support base is a carrying supporting member, which bears
Most of or most service load, and the other parts of housing component then have relatively small load.
Spring-loaded be set as it is adjustable, for reducing spring along the clearance on bar.Adjustable axial supporting can be one
The toothed bushing in end face, tooth bushing coordinates with support base, and the fluting on the tooth bushing is engaged in an outer end end feet of spring,
By turning gear bushing so that spring is adjacent to, so as to eliminate the clearance along spring.
There is a fixing piece being made of one with shell body, for blocking release plectrum, when operation one on housing component
Handle or a locking wire, make release plectrum turn in the fixing piece card slot.
Claims (4)
1. it is a kind of can optional position locking linear motion device, it includes a bar axis for linear motion, inside a dependence
Self-locking spring pins the bar axis to prevent its locking device for making to move axially through housing component, it is characterised in that the bar axis
One end the jointing that be connected with motion is housed, the other end of bar axis is equipped with the maximum displacement for limiting bar axis, to prevent
Deviate from the stopper ring of housing component when bar axis moves；The locking device, which includes one, can be placed in plectrum card slot and unlock spring
Or the release plectrum of bar axis is pinned, and bar axis is produced relative motion with locking device and housing component or is relatively fixed.
2. it is according to claim 1 can optional position locking linear motion device, it is characterised in that the housing component
Including the shell body, end bushings and adjustable support for installing and protecting spring；The spring is included upward around bar
The cylindrical bar of axis, self-locking left spring and the right spring of self-locking with winding direction opposite each other winding thereon, the left bullet of self-locking
Spring and the right spring of self-locking are respectively provided with a normal direction internal diameter for being slightly less than cylindrical bar bar footpath, to make self-locking left spring and the right bullet of self-locking
Spring can tightly clamp cylindrical bar；The outer end of self-locking left spring and the right spring of self-locking folding hooks terminates in end bushings and end tooth respectively
Fluting on bushing；The inner of self-locking left spring and the right spring of self-locking is engaged respectively within the release plectrum among two springs
On notch, it is coaxial with cylindrical bar, and can be rotated by means of discharging plectrum around cylindrical bar.
3. it is according to claim 2 can optional position locking linear motion device, it is characterised in that the release dial
Piece is stretched through inner housing and shell body, and keeps it in original lock positioning due to acting on spring tension on it
Put；Release plectrum rotates self-locking left spring, the inner of the right spring of self-locking at the same time, its rotation direction is the volume of trip spring spring coil
Around amplifying its internal diameter；The inner housing internal diameter being between the inner surface of shell body and self-locking left spring, the right spring of self-locking is only slightly larger
Inner housing is set tightly to surround clamping self-locking left spring, the right bullet of self-locking to outside diameter in self-locking left spring, the right SPRING METHOD OF STONE of self-locking
Spring.
4. it is according to claim 1 or 2 can optional position locking linear motion device, it is characterised in that the housing
Part is made of plectrum card slot, shell body, support base, end bushings and end tooth bushing, and support base is opposite with jointing
With the connector of fixed mechanism, end bushings are not direct stands under load, and simply fixing self-locking spring end feet prevents its rotation, and
Support base is a carrying supporting item, which bears most of or most service load, and housing component is other
Then there is relatively small load in part, and end of the shell body both ends respectively with support base and end bushings crimps；Self-locking left spring
And the right spring of self-locking is mounted between two opposed end bushings and end tooth bushing vertically, support base leads to end tooth bushing
Cross teeth cooperation, pivoting end tooth bushing change self-locking spring spring tension to eliminate spring along the clearance on bar axis so that
Spring is adjacent to；Plectrum card slot is fixed on shell body, and release can be blocked in the axial direction when rotating release plectrum to maximum position
Plectrum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214014.3A CN107965520A (en) | 2017-11-28 | 2017-11-28 | It is a kind of can optional position locking linear motion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214014.3A CN107965520A (en) | 2017-11-28 | 2017-11-28 | It is a kind of can optional position locking linear motion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107965520A true CN107965520A (en) | 2018-04-27 |
Family
ID=61999152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711214014.3A Pending CN107965520A (en) | 2017-11-28 | 2017-11-28 | It is a kind of can optional position locking linear motion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965520A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2179429A5 (en) * | 1972-04-03 | 1973-11-16 | Porter Co P L | |
| JPS5725017A (en) * | 1980-06-06 | 1982-02-09 | Porter Co P L | Mechanical locking device |
| BR9101852A (en) * | 1990-05-11 | 1991-12-17 | Porter Co P L | MECHANICAL CLOSING, PROCESS TO IMPROVE MECHANICAL CLOSING AND PROCESS TO MAKE PERFECT MECHANICAL CLOSING |
| US5794470A (en) * | 1996-06-25 | 1998-08-18 | P.L. Porter Co. | Mechanical seat lock |
| CA2367480A1 (en) * | 1999-04-21 | 2000-10-26 | P.L. Porter Co. | Mechanical seat lock with translating rod that does not rotate |
| US20030075394A1 (en) * | 2001-10-24 | 2003-04-24 | Shields Roy E. | Positionable linear friction lock assembly |
| CN1590806A (en) * | 2003-09-05 | 2005-03-09 | 大银微系统股份有限公司 | Linear actuator having bidirection self locking |
| CN101253350A (en) * | 2005-09-02 | 2008-08-27 | 利纳克有限公司 | Actuator |
| CN207539187U (en) * | 2017-11-28 | 2018-06-26 | 浙江中航通飞研究院有限公司 | Can any position locking linear motion device |
-
2017
- 2017-11-28 CN CN201711214014.3A patent/CN107965520A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2179429A5 (en) * | 1972-04-03 | 1973-11-16 | Porter Co P L | |
| JPS5725017A (en) * | 1980-06-06 | 1982-02-09 | Porter Co P L | Mechanical locking device |
| BR9101852A (en) * | 1990-05-11 | 1991-12-17 | Porter Co P L | MECHANICAL CLOSING, PROCESS TO IMPROVE MECHANICAL CLOSING AND PROCESS TO MAKE PERFECT MECHANICAL CLOSING |
| US5794470A (en) * | 1996-06-25 | 1998-08-18 | P.L. Porter Co. | Mechanical seat lock |
| CA2367480A1 (en) * | 1999-04-21 | 2000-10-26 | P.L. Porter Co. | Mechanical seat lock with translating rod that does not rotate |
| US20030075394A1 (en) * | 2001-10-24 | 2003-04-24 | Shields Roy E. | Positionable linear friction lock assembly |
| CN1590806A (en) * | 2003-09-05 | 2005-03-09 | 大银微系统股份有限公司 | Linear actuator having bidirection self locking |
| CN101253350A (en) * | 2005-09-02 | 2008-08-27 | 利纳克有限公司 | Actuator |
| CN207539187U (en) * | 2017-11-28 | 2018-06-26 | 浙江中航通飞研究院有限公司 | Can any position locking linear motion device |
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