CN206595829U - Linear actuator with the stuck function of anti-pretension - Google Patents
Linear actuator with the stuck function of anti-pretension Download PDFInfo
- Publication number
- CN206595829U CN206595829U CN201720165943.9U CN201720165943U CN206595829U CN 206595829 U CN206595829 U CN 206595829U CN 201720165943 U CN201720165943 U CN 201720165943U CN 206595829 U CN206595829 U CN 206595829U
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- screw mandrel
- linear actuator
- sliding tube
- bearing
- motor
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Abstract
Linear actuator includes：Motor；Screw mandrel；Motor coupler and screw mandrel shaft coupling；Bearing, support screw；Shell, with inner chamber, screw mandrel is contained in the inner chamber of shell, and shell includes the Part I and Part II that can axially take apart, Part I and motor connection, and bearing is fixed on the part that Part I is mutually connected with Part II；Coaxial feed screw nut and sliding tube, feed screw nut has the part being located in sliding tube and the flange outside sliding tube, and flange tightens together with sliding tube, and feed screw nut engages with screw mandrel, the rotary motion of screw mandrel is converted into the translation of feed screw nut, drives sliding tube to carry out translational motion；Anti-collision ring, is arranged in screw mandrel front end, in the middle of screw mandrel housing parts and bearing outer ring.Shell is divided into two parts, is easy to assembling, and this two parts is used for limited bearing；Nut portion is located at outside sliding tube, with flange, it is easy to assemble, and saves part；Anti-collision ring can prevent that screw mandrel and feed screw nut's pretension are stuck.
Description
Technical field
The utility model relates generally to linear actuator, more particularly relates to the Linear transmission dress of motion simulation
Put.
Background technology
In the industries such as video, film, game, in order to strengthen the experience of spectators or participant in game, except image harmony
Outside sound, the various experience such as motion experience, scent experience, humidity experience can also be provided it.When providing motion experience, typically
By causing the generation motions synchronous with image, sound sequence such as chair, racing car that spectators are seated to realize.
The content of the invention
In this motion simulation, generally require and use linear actuator, the rotary motion of servomotor is converted into directly
Line is moved, and motor part hereinafter is referred to as into active part, will receive the part referred to as follower of the motion of active part transmission
Point, being capable of easily disassembled, Er Qiejie it is desirable to the support of connecting between active part and secondary part, involved bearing
Save parts.
According to one side of the present utility model there is provided a kind of linear actuator, it can include：Motor, with energy
The output shaft of enough bidirectional rotations；Screw mandrel；Motor coupler and screw mandrel shaft coupling, output shaft and screw mandrel for coupling motor, with
The bidirectional rotation of the output shaft of motor is passed into screw mandrel；Bearing, for support screw；Shell, the shell has inner chamber, institute
State screw mandrel to be contained in the inner chamber of the shell, the shell includes the Part I and Part II that can axially take apart, the
A part and motor connection, bearing are fixed on the part that Part I is mutually connected with Part II；It is rigidly connected to each other one
The coaxial feed screw nut risen and sliding tube, feed screw nut have the part being located in sliding tube and the flange outside sliding tube,
Flange tightens together with sliding tube, and feed screw nut can engage with screw mandrel, so that the rotary motion of screw mandrel is converted into screw mandrel
The translation of nut, so as to drive sliding tube to carry out translational motion relative to the inner chamber of the shell；And anti-collision ring, it is arranged in silk
Bar front end, in the middle of screw mandrel housing parts and bearing outer ring, so that when sliding tube bumps against anti-collision ring, because anti-collision ring is solid
It is fixed and sliding tube is vertical direction toward impact, so both do not result in pretension.
According to the linear actuator of the utility model embodiment, it can also include：Anticollision pad (13), is fixed on leading screw
End, diameter is more than screw mandrel diameter, and coordinates with feed screw nut, for preventing feed screw nut from being come off from screw mandrel.
According to the linear actuator of the utility model embodiment, wherein the bumper piece material can be spring steel.
According to the linear actuator of the utility model embodiment, the thickness of the pad can be 2.5~3.2 millimeters,
External diameter is more than the diameter of bore of feed screw nut and less than the diameter of bore of sliding tube.
According to the linear actuator of the utility model embodiment, the thickness of the pad is 2.9-3.1 millimeters, screw mandrel spiral shell
Female diameter of bore is 12 millimeters, and the diameter of bore of sliding tube is 20 millimeters, and the external diameter of pad is 17.5~19.5 millimeters.
According to one side of the present utility model there is provided a kind of linear actuator, it can include：Motor, with energy
The output shaft of enough bidirectional rotations；Screw mandrel；Motor coupler and screw mandrel shaft coupling, output shaft and screw mandrel for coupling motor, with
The bidirectional rotation of the output shaft of motor is passed into screw mandrel；Bearing, for support screw；Shell, the shell has inner chamber, institute
State screw mandrel to be contained in the inner chamber of the shell, the shell includes the Part I and Part II that can axially take apart, the
A part and motor connection, bearing are fixed on the part that Part I is mutually connected with Part II；And be rigidly connected to each other
Coaxial feed screw nut together and sliding tube, feed screw nut have the part and convex outside sliding tube being located in sliding tube
Edge, flange tightens together with sliding tube, and feed screw nut can engage with screw mandrel, so that the rotary motion of screw mandrel is converted into silk
The translation of stem nut, so as to drive sliding tube to carry out translational motion relative to the inner chamber of the shell.
According to the linear actuator of the utility model embodiment, Part I can have stepped hole, the week of stepped hole
Face is combined with the side face of bearing, and the step surface of stepped hole is combined with the first side of the outer ring of bearing, and Part II has annulus
The projecting ends of shape, the end face of the projecting ends withstands the second side of the outer ring of bearing, the outer circumference surface of the projecting ends with
The side face of the stepped hole of Part I is fitted close.
According to the linear actuator of the utility model embodiment, screw mandrel shaft coupling can have flange, the side of flange
In the side away from motor withstand bearing inner ring first side, the second side of the inner ring of bearing fixed by nut.
According to the linear actuator of the utility model embodiment, casing part can have hole, be adapted as steam vent
With spanner impetus.
Can have on groove, shell according to the linear actuator of the utility model embodiment, on sliding tube to have
There is guide member, guide member can be contained in the groove, to prevent the axial rotation of the sliding tube.
According to the linear actuator of the utility model embodiment, motor coupler and screw mandrel shaft coupling can be respectively provided with one
To the finger piece of protrusion, linear actuator can also include cross coupling, the finger-like of a pair of protrusions of motor coupler
The finger piece of a pair of protrusions of thing and screw mandrel shaft coupling inserts cross coupling, forms the connection secured to one another of three.
According to the linear actuator of the utility model embodiment, Part I can have square profiles, Part II
There can be circular profile.
According to the linear actuator of the utility model embodiment, the one end of sliding tube away from motor can be provided with oiling
Lid, for adding lubricating oil to screw mandrel.
Shell is divided into by motor seating portion and screw mandrel housing parts according to the linear actuator of the utility model embodiment,
So that it is easy to assembling, and motor seating portion and screw mandrel housing parts can be with limited bearings；Other nut portion is located at sliding tube
Outside, with flange, it is easy to assemble, part is saved.
According to another aspect of the present utility model there is provided a kind of method for dismantling linear actuator, it can wrap
Include：Remove the connection member for connecting the Part I of motor and shell；Remove motor；Remove Part I；It is close from shell
One end of motor, integrally pull out secondary part from the inner chamber of Part II, secondary part includes interconnected amongst one another at least one
Bearing, screw mandrel, feed screw nut and sliding tube.
Follower can relatively easily be pulled down according to the method for the dismounting linear actuator of the utility model embodiment
Point, it is easy to repair and changes.
Brief description of the drawings
From below in conjunction with the accompanying drawings in the detailed description of the utility model embodiment, it is of the present utility model these and/or its
Its aspect and advantage will become clearer and be easier to understand, wherein：
Fig. 1 shows the exploded view of the linear actuator according to the utility model embodiment.
Fig. 2 shows the profile of the linear actuator according to the utility model embodiment.
Fig. 3 shows the exploded view of the linear actuator according to another embodiment of the utility model.
Fig. 4 shows the exploded view of the linear actuator according to another embodiment of the utility model.
Embodiment
In order that those skilled in the art more fully understand the utility model, it is right with reference to the accompanying drawings and detailed description
The utility model is described in further detail.
Fig. 1 shows the exploded view of the linear actuator 100 according to the utility model embodiment.Fig. 2 shows basis
The profile of the linear actuator 100 of the utility model embodiment.
Linear actuator 100 is suitable for installing for example between ground and seat, receives motor message code (such as table
Show the signal that some distance is moved to some direction), under the control of motion controller, drive the electricity of linear actuator 100
Machine, linear actuator 100 produces translation axially.Here motor message code is intended to and image and/or sound
Sound synchronously moves linear actuator, and then moved seat, brings kinesthesia to experience to the spectators on seat.
Linear actuator 100 includes motor 1, screw mandrel 9, motor coupler 3 and screw mandrel shaft coupling 6, bearing 7, shell
Part I 5 and Part II 20, coaxial feed screw nut 11 and sliding tube 12.
Motor 1 receives coron signal, converts thereof into the rotation output of respective direction.Motor 1 has being capable of bidirectional rotary
The output shaft 101 turned.
The output shaft 101 and screw mandrel 9 of motor are linked up by motor coupler 3 and screw mandrel shaft coupling 6, by motor 1
The bidirectional rotation of output shaft pass to screw mandrel 9.
In the example presented in the figure, motor coupler 3 and screw mandrel shaft coupling 6 are linked together by cross connector 4.Motor
Shaft coupling 3 and screw mandrel shaft coupling 6 are respectively provided with two prominent finger pieces, for being fitted in cross connector 4.Cross connects
The material of clutch 4 can be elastomeric material.Example is but only for, motor coupler 3 and screw mandrel shaft coupling 6 can be by other
Mode links together.
Screw mandrel shaft coupling 6 is plateau form, is fitted close with screw mandrel 9, and its nose portion has prominent finger piece.
In this example, shell includes the Part I 5 and Part II 20 that can axially take apart, hereinafter referred to as first
It is motor cabinet 5 to divide 5, and Part II is called screw mandrel housing.Motor cabinet connects with motor
Connect, for example, the corresponding screwed hole 102 on the screwed hole and motor cabinet on the boss of motor 1 is connected by using bolt 2；
Screw mandrel is mostly held in screw mandrel housing 20.In the example illustrated in figure 1, motor cabinet 5 has square profiles, and screw mandrel housing 20 has
Circular profile.
Hereinafter, all parts are referred to as near-end close to one end of motor, and one end away from motor is referred to as distal end.
Bearing 7 is used for support screw 9.Bearing 7 is enclosed on screw mandrel shaft coupling 6.The near-end of bearing 7 is by the distal end of motor cabinet 5
Inner chamber shoulder limit, the distal end of bearing 7 is limited by the shoulder of the inner chamber of the near-end of screw mandrel housing 20.In addition, the distal end of bearing 7
Also fixed using round nut 8.In other words, the distal end of motor cabinet 5 has stepped hole, the step surface (end face) and bearing of stepped hole
The side laminating of the near-end of 7 outer ring, the near-end of screw mandrel housing 20 has the projecting ends of annular, the end face of the projecting ends
The side of the distal end of the outer ring of bearing is withstood, the outer circumference surface of the projecting ends is closely matched somebody with somebody with the side face of the stepped hole of motor cabinet 5
Close.Screw mandrel shaft coupling 6 has flange 61, and the first side of the inner ring of bearing is withstood in the side away from motor in the side of flange,
The second side of the inner ring of bearing is fixed by nut.
The form of bearing 7 is not limited, and can use the bearing of any suitable types such as ball bearing.
Linear actuator also has the coaxial feed screw nut 11 being rigidly attached to one and sliding tube 12.Screw mandrel spiral shell
Mother 11 has the part 111 being located in sliding tube 12 and the flange 112 outside sliding tube 13.Flange 112 and sliding tube 12 are tight
Gu together, for example pass through bolt 10.Feed screw nut 11 can engage with the screw thread of screw mandrel 9, so that the rotary motion of screw mandrel 9 be turned
The translation of feed screw nut 11 is changed into, so as to drive sliding tube 12 to carry out translational motion relative to the inner chamber of the shell.
In the example illustrated in figure 1, there is pin 15, the pin 15 is contained in when assembling on the screw mandrel housing parts 20 of shell
In the sliding cavity 121 of sliding tube 12, to prevent the rotation of sliding stop pipe 12, also it is prevented that the rotation of feed screw nut 11, so as to protect
Translational motion of the feed screw nut 11 together with sliding tube 12 is demonstrate,proved.
In the example illustrated in figure 1, label 13 indicates anticollision pad, and label 14 indicates hexagon socket countersunk flat cap head screw.Anticollision pad
13 and the effect of sunk screw 14 be to prevent feed screw nut and screw mandrel from departing from when moving to end.
A grades of (GB/T96.1-2002) its thickness of large washer of national standard are 1.1 millimeters, inside diameter (abbreviation internal diameter)
For 5.3 millimeters, outer dia (abbreviation external diameter) is 15 millimeters, and material is steel.
Through many experiments, the material of anticollision pad is defined as spring steel by inventor：Spring steel has excellent comprehensive
Can, such as mechanical property (particularly elastic limit, strength degree, yield tensile ratio), elasticity attenuation resistance can (i.e. elastoresistance declines performance, again
Claim relaxation resistance), fatigue behaviour, quenching degree, physical and chemical performance (heat-resisting, low temperature resistant, anti-oxidant, corrosion-resistant etc.).Spring
Steel is within the scope of defined, and the ability of elastic deformation makes it bear certain load, is occurred without after load removal permanent
Deformation.
Through experiment, the preferred parameter that inventor determines spring steel plate washer is：The thickness of pad is 2.5~3.2 millimeters, more
Preferably 2.9-3.1 millimeters；Pad external diameter is more than the diameter of bore of feed screw nut and less than the diameter of bore of sliding tube, for example, exist
In one example, the diameter of bore of feed screw nut is 12 millimeters, and the diameter of bore of sliding tube is 20 millimeters, and the external diameter of pad is
17.5~19.5 millimeters, then spacer thickness is preferably for example set to 3mm, diameter is set to φ 18.6mm.Compared to national standard
Pad, the ability and intensity of the elastic deformation of the spring steel plate washer of the utility model embodiment are greatly enhanced.
In the example illustrated in figure 1, label 17 indicates cylinder body inner sleeve, and cylinder body inner sleeve 17 is made by high-abrasive material, is embedded in silk
On rod shell 20, with the relative motion of sliding tube 12.
In the example illustrated in figure 1, screw mandrel housing 20 has hole 15, is adapted as steam vent and spanner impetus, passes through row
Gas causes the inside of screw mandrel housing 20 to be malleation, and as spanner impetus to be easy to operation, it is easy to installs, dismantle and adjusts
It is whole.
In the example illustrated in figure 1, the end of screw mandrel housing 20 is connected with lid 18, it is illustrated that in lid 18 is consolidated by screw 10
Surely screw mandrel housing 20 is arrived.
In linear actuator shown in above-mentioned Fig. 1, shell is divided into motor seating portion and screw mandrel housing parts so that just
In assembling, and motor seating portion and screw mandrel housing parts can be with limited bearings；Other nut portion is located at outside sliding tube, has
Flange, it is easy to assemble, saves part.
With reference to line with anti-pretension stuck function of Fig. 3 and Fig. 4 descriptions according to another embodiment of the utility model
Property transmission device.
Fig. 3 shows the exploded view of the linear actuator according to another embodiment of the utility model.
Fig. 4 shows the exploded view of the linear actuator according to another embodiment of the utility model.
As shown in Figure 3 and Figure 4, compared to Fig. 1 and Fig. 2, many anti-collision rings 21, anti-collision ring 21 is arranged in the front end of screw mandrel 9,
In the middle of the outer ring of sliding tube 12 and bearing 7, anti-collision ring 21 is compressed and (held out against) by bearing 7 and housing parts 20, so anticollision
Circle is fixed.
Before no increase anti-collision ring 21:Sliding tube 12 drives next along the axial direction side of leading screw 9 in the rotation of feed screw nut 11
To movement, after feed screw nut 11 and round nut 8 are in contact, the rotatory inertia of round nut 8 and the inner ring of bearing 7 in feed screw nut 11
Rotated together in the presence of power, feed screw nut and screw mandrel can cause rotation pretension and occur stuck.
Compare, the linear actuator of the utility model embodiment is provided with anti-collision ring 21, and sliding tube 12 is in screw mandrel spiral shell
The rotation of mother 11 drives next and moved along the axial direction of leading screw 9, after feed screw nut 11 and anti-collision ring 21 are in contact, feed screw nut
11 in the presence of itself rotating inertia force will vertical direction toward impact anti-collision ring 21 (because anti-collision ring 21 is fixed, will not
Rotated with the presence of the rotating inertia force of feed screw nut 11), most the rotating inertia force of feed screw nut 11 is offset at last, institute
So that feed screw nut and screw mandrel do not result in rotation pretension and occur stuck.The material of anti-collision ring 21 for example can be 45 steel.
The method for describing the dismounting linear actuator according to the utility model embodiment below, can include：
First, the connection member for being connected motor 1 with the Part I of shell is removed, for example, removes screw 2.
Next, removing motor 1.
Then motor seating portion 5 is removed.
The last Part II from shell, i.e., integrally pull out secondary part in the inner chamber of screw mandrel housing parts 20, described
Secondary part includes at least a bearing 7, screw mandrel 9, feed screw nut 11 and sliding tube 12 interconnected amongst one another.
Follower can relatively easily be pulled down according to the method for the dismounting linear actuator of the utility model embodiment
Point, it is easy to repair and changes.
In above example description, repeatedly using screw as the example of connection member, but example is only for, this area
Technical staff can select other connection members as needed.
It is described above each embodiment of the present utility model, described above is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes will be apparent from for those skilled in the art.Therefore, it is of the present utility model to protect
Shield scope should be defined by scope of the claims.
Claims (13)
1. a kind of linear actuator, including：
Motor, with the output shaft for being capable of bidirectional rotation；
Screw mandrel；
Motor coupler and screw mandrel shaft coupling, output shaft and screw mandrel for coupling motor, by the two-way of the output shaft of motor
Rotation passes to screw mandrel；
Bearing, for support screw；
Shell, the shell has inner chamber, and the screw mandrel is contained in the inner chamber of the shell, and the shell includes can be axial
The Part I and Part II taken apart, Part I and motor connection, bearing are fixed on Part I and Part II phase
The part of linking；
The coaxial feed screw nut being rigidly attached to one and sliding tube, feed screw nut have be located at sliding tube in part and
Flange outside sliding tube, flange tightens together with sliding tube, and feed screw nut can engage with screw mandrel, so that by screw mandrel
Rotary motion is converted into the translation of feed screw nut, so as to drive sliding tube to carry out translational motion relative to the inner chamber of the shell；
And
Anti-collision ring, is arranged in screw mandrel front end, in the middle of screw mandrel housing parts and bearing outer ring, by bearing (7) and housing parts
(20) compress.
2. linear actuator according to claim 1, in addition to：
Anticollision pad (13), is fixed on leading screw end, diameter is more than screw mandrel diameter, and coordinates with feed screw nut, for preventing silk
Stem nut comes off from screw mandrel.
3. linear actuator according to claim 2, wherein：
The bumper piece material is spring steel.
4. linear actuator according to claim 3, the thickness of the pad is 2.5~3.2 millimeters, and external diameter is more than screw mandrel spiral shell
The diameter of bore of mother and the diameter of bore for being less than sliding tube.
5. linear actuator according to claim 4, the thickness of the pad is 2.9-3.1 millimeters, the endoporus of feed screw nut
A diameter of 12 millimeters, the diameter of bore of sliding tube is 20 millimeters, and the external diameter of pad is 17.5~19.5 millimeters.
6. linear actuator according to claim 1,
Part I has stepped hole, and the side face of stepped hole is combined with the side face of bearing, the step surface of stepped hole and bearing it is outer
The first side of circle is combined, and Part II has the projecting ends of annular, and the end face of the projecting ends withstands the outer ring of bearing
Second side, the side face of the outer circumference surface of the projecting ends and the stepped hole of Part I is fitted close.
7. according to the linear actuator of claim 1 or 2, the screw mandrel shaft coupling has remote in flange, the side of flange
The first side of the inner ring of bearing is withstood in the side of motor, and the second side of the inner ring of bearing is fixed by nut.
8. according to the linear actuator of claim 1 or 2, the casing part has hole, is adapted as steam vent and spanner
Impetus.
9. according to the linear actuator of claim 1 or 2, having on the sliding tube has guiding on groove, the shell
Part, the guide member is contained in the groove, to prevent the axial rotation of the sliding tube.
10. according to the linear actuator of claim 1 or 2, motor coupler and the screw mandrel shaft coupling be respectively provided with a pair it is convex
The finger piece gone out, the linear actuator also includes cross coupling, the finger-like of a pair of protrusions of the motor coupler
The finger piece of a pair of protrusions of thing and screw mandrel shaft coupling inserts cross coupling, forms the connection secured to one another of three.
11. according to the linear actuator of claim 1 or 2, the Part I has square profiles, the Part II tool
There is circular profile.
12. according to the linear actuator of claim 1 or 2, the one end of the sliding tube away from motor is provided with fuel door, use
In give screw mandrel addition lubricating oil.
13. according to the linear actuator of claim 1 or 2, the shell has the inner sleeve made by high-abrasive material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017201019678 | 2017-01-26 | ||
| CN201720101967 | 2017-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206595829U true CN206595829U (en) | 2017-10-27 |
Family
ID=60126623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720165943.9U Expired - Fee Related CN206595829U (en) | 2017-01-26 | 2017-02-23 | Linear actuator with the stuck function of anti-pretension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206595829U (en) |
-
2017
- 2017-02-23 CN CN201720165943.9U patent/CN206595829U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20190223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |