CN207910612U - Anti- torsion electric cylinder - Google Patents
Anti- torsion electric cylinder Download PDFInfo
- Publication number
- CN207910612U CN207910612U CN201820373654.2U CN201820373654U CN207910612U CN 207910612 U CN207910612 U CN 207910612U CN 201820373654 U CN201820373654 U CN 201820373654U CN 207910612 U CN207910612 U CN 207910612U
- Authority
- CN
- China
- Prior art keywords
- piston
- torsiversion
- ball screw
- electric cylinder
- torsion
- Prior art date
- 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.)
- Active
Links
Abstract
It includes ball wire bar pair that the utility model, which discloses the anti-torsion electric cylinder of one kind, comprising ball screw and the ball screw nut for being sheathed on ball screw；The piston being sheathed on outside ball wire bar pair；One end of piston is connect with ball screw nut；The cylinder barrel being sheathed on outside piston；Piston can be moved in a straight line along the axis direction of cylinder barrel；Transmission mechanism, one end connect one end of ball screw；Driving motor, output end connect the other end of transmission mechanism；And it is covered on the end cap on cylinder barrel top, end cap offers port, and the other end of piston passes through the port of end cap；Piston is equipped with anti-torsiversion along length direction；Port has limit compatible with anti-torsiversion；Anti- torsiversion and limit face.The utility model of the application limits the torsion of piston by end cap, avoids electric cylinder and occurs the case where piston torsion in use.
Description
Technical field
The utility model is related to electric cylinder technical fields, are specifically related to a kind of anti-torsion electric cylinder.
Background technology
Electric cylinder is that the rotary motion of servo motor is turned to the modular product of servo motor and leading screw integrated design
Change linear motion into；Electric cylinder generally comprises cylinder barrel, piston, ball screw and driving motor, and piston and ball screw are set
In in cylinder barrel, piston bush is set to ball screw, and driving motor drives ball screw rotation, ball screw rotation motion is survived
The linear motion of plug, and piston is easy to happen offset torsion in this process, and then electric cylinder overall performance is damaged.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of anti-torsion electric cylinder.
The anti-torsion electric cylinder of one kind includes ball wire bar pair comprising ball screw and the ball for being sheathed on ball screw
Feed screw nut；
The piston being sheathed on outside ball wire bar pair；One end of piston is connect with ball screw nut；
The cylinder barrel being sheathed on outside piston；Piston can be moved in a straight line along the axis direction of cylinder barrel；
Transmission mechanism, one end connect one end of ball screw；
Driving motor, output end connect the other end of transmission mechanism；And
It is covered on the end cap on cylinder barrel top, end cap offers port；The other end of piston passes through the port of end cap；
Piston is equipped with anti-torsiversion along length direction；Port has limit compatible with anti-torsiversion；Anti- torsion
Indexing and limit face.
According to one embodiment of the utility model, anti-torsiversion is opened in the side wall of piston along the length direction of piston,
And the centerline axis parallel of anti-torsiversion and piston.
According to one embodiment of the utility model, circle of the cross section composition with trimming of piston and anti-torsiversion.
According to one embodiment of the utility model, the quantity of anti-torsiversion is multiple.
According to one embodiment of the utility model, the quantity of anti-torsiversion is six, the cross section group of six anti-torsiversions
At regular hexagon.
According to one embodiment of the utility model, dustband and first bearing are equipped between end cap and piston.
According to one embodiment of the utility model, first bearing is needle bearing comprising needle roller guide sleeve, retainer and
Needle roller；
The cross section of needle roller guide sleeve inner ring is regular hexagon, and the inner ring of needle roller guide sleeve is adapted with six anti-torsiversions；
Retainer is set to the inner ring of needle roller guide sleeve；The quantity of needle roller is multiple, and multiple needle rollers are set successively along the short transverse of retainer
It sets；Each needle roller is each perpendicular to the central axis of piston, and each needle roller fits in piston.
According to one embodiment of the utility model, piston includes piston rod and the piston that is connect with one end of piston rod
Head；
Piston head is connect with ball screw nut；Anti- torsiversion is opened in piston rod；Piston head offers air discharge duct.
According to one embodiment of the utility model, transmission mechanism includes synchronous pulley, synchronous belt, axis connected device, second bearing,
Wherein the quantity of synchronous pulley is two；
A wherein synchronous pulley is connected by one end of axis connected device and ball screw；Second bearing is sheathed on axis connected device；Separately
The output end of one synchronous pulley and driving motor connects；Two synchronous pulleys pass through synchronous band connection.
Further include transmission case according to one embodiment of the utility model；
Transmission mechanism is set in transmission case；Cylinder barrel and driving motor are set to the top of transmission case.
Compared with the existing technology, the application limits the torsion of piston by end cap, avoids electric cylinder and is using
Occur the case where piston torsion in the process, electric cylinder overall performance is damaged.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the sectional view of anti-torsion electric cylinder in embodiment one；
Fig. 2 is the sectional view of piston in embodiment one；
Fig. 3 is ball wire bar pair, piston and end cap sectional view in embodiment one；
Fig. 4 is the sectional view of anti-torsion electric cylinder in embodiment two；
Fig. 5 is the sectional view of piston in embodiment two；
Fig. 6 is ball wire bar pair, piston and end cap sectional view in embodiment two；
Fig. 7 is the portions the A enlarged drawing of Fig. 4 in embodiment three；
Fig. 8 is the portions the B enlarged drawing of Fig. 7 in embodiment three.
Reference sign：
1, ball wire bar pair；11, ball screw；12, ball screw nut；2, piston；21, anti-torsiversion；22, piston
Bar；23, piston head；231, air discharge duct；232, the first fixing screws；3, cylinder barrel；4, transmission mechanism；41, synchronous pulley；42, same
Walk band；43, axis connected device；431, cushion pad；44, second bearing；45, bearing block；5, driving motor；6, end cap；61, port；
611, it limits；62, dustband；63, first bearing；631, needle roller lasso trick；632, retainer；6321, needle roller slot；633, it rolls
Needle；7, transmission case；71, the second fixing screws；72, third fixing screws.
Specific implementation mode
Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices
Details will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit this practicality newly
Type.That is, in some embodiments of the utility model, the details in these practices is non-essential.In addition, for letter
For the sake of changing schema, some known usual structures will be painted it in a manner of simply illustrative in the drawings with component.
It is to be appreciated that in the utility model embodiment institute it is directional instruction (such as upper and lower, left and right, it is preceding,
It is only used for explaining the relative position relation under a certain particular pose (as shown in the picture) between each component afterwards ...), moves
Situation etc., if the particular pose changes, directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and non-specifically
The meaning of order or cis-position is censured, it is also non-to limit the utility model, it is retouched with same technique term just for the sake of difference
The component stated or operation are not understood to indicate or imply its relative importance or implicitly indicate indicated technology
The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.In addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, when the knot that conflicting or cannot achieve when will be understood that this technical solution occurs in the combination of technical solution
Conjunction is not present, also not within the protection domain of the requires of the utility model.
For that can further appreciate that the contents, features and effects of the utility model, following three embodiments are hereby enumerated, and coordinate
Detailed description are as follows for attached drawing：
Embodiment one：
Referring to FIG. 1, FIG. 2 and FIG. 3, Fig. 1 is the sectional view of anti-torsion electric cylinder in embodiment one, and Fig. 2 is in embodiment one
The sectional view of piston, Fig. 3 are ball wire bar pair, piston and end cap sectional view in embodiment one；Anti- torsion in the present embodiment
Electric cylinder includes ball wire bar pair 1, piston 2, cylinder barrel 3, transmission mechanism 4, driving motor 5 and end cap 6；Piston 2 is sheathed on rolling
Outside ballscrew pair 1, cylinder barrel 3 is sheathed on outside piston 2, one end of one end connection ball wire bar pair 1 of transmission mechanism 4, transmission mechanism 4
Other end connection driving motor 5 output end, end cap 6 is covered on the top of cylinder barrel 3.
Ball wire bar pair 1 includes ball screw 11 and ball screw nut 12, and ball screw nut 12 is sheathed on ball
On lead screw 11, when ball screw 11 rotates, ball screw nut 12 can do straight line along the direction of 11 length of ball screw
Movement.
Piston 2 includes anti-torsiversion 21, piston rod 22 and piston head 23；Piston head 23 is set to one end of piston rod 22,
Piston rod 22 is integrally formed with piston head 23, and anti-torsiversion 21 is opened in piston rod 22 along the length direction of piston rod 22
The cross section composition tool of side wall, the centerline axis parallel of anti-torsiversion 21 and piston rod 22, piston rod 22 and anti-torsiversion 21
There is the circle of trimming；The outer ring of piston head 23 offers air discharge duct 231, and air discharge duct 231 is specially the circumference along piston head 23
The groove of direction setting, air discharge duct 231 avoid the air in cylinder barrel 3 and the sky outside cylinder barrel 3 for the air circulation in cylinder barrel 3
Gas convection current and dirt is brought into cylinder barrel 3；Piston 2 is sheathed on outside ball wire bar pair 1, specifically, piston rod 22 is sheathed on rolling
Outside ballscrew 11, piston head 23 is sheathed on outside ball screw nut 12, and piston head 23 passes through first with roller bearing feed screw nut 12
Fixing screws 232 are affixed；When ball screw 11 rotates, ball screw nut 12 drives piston head 23 and piston rod 22 edge together
The length direction for ball screw 11 moves in a straight line.
Cylinder barrel 3 is sheathed on outside piston 2；When ball screw 11 rotates, ball screw nut 12 drives piston head 23 and lives
Stopper rod 22 is moved in a straight line along the central axis of cylinder barrel 3 together.
Transmission mechanism 4 includes synchronous pulley 41, synchronous belt 42, axis connected device 43, second bearing 44 and bearing block 45, wherein
The quantity of synchronous pulley 41 is two；Wherein a synchronous pulley 41 is connect by axis connected device 43 with one end of ball screw 11, and
Axis connected device 43 is equipped with cushion pad 431 with ball screw nut 12, and cushion pad 431 plays cushioning effect；Second bearing 44 is sheathed on
Axis connected device 43 coordinates with axis connected device 43 and makes synchronous pulley 41 and the synchronized links of ball screw 11 more smooth, bearing block
45 are sheathed on outside second bearing 44, play a supporting role；Another synchronous pulley 41 is connect with the output end of driving motor 5；Two
Synchronous pulley 41 is connected by synchronous belt 42；Driving motor 5 is specially servo motor, and 5 actuator of driving motor wherein one synchronizes
Belt wheel 41 rotates, and drives another synchronous pulley 41 to rotate by synchronous belt 42, and then drive ball screw by axis connected device 43 again
11 rotations.
End cap 6 is covered on 3 top of cylinder barrel, is specifically covered on the top of cylinder barrel 3；End cap 6 includes port 61, dustband 62
And first bearing 63；Port 61 is specifically opened in the intermediate position of end cap 6, and the one end of piston rod 22 far from piston head 23 passes through
The port 61 of end cap 6；There is limit 611, limit 611 to be adapted with anti-torsiversion 21 for the side of port 61, anti-torsiversion 21 and
611 faces are limited, port 61 and limit 611 form the circular shape with trimming；When ball screw 11 rotates, ball
Feed screw nut 12 drives piston head 23 and piston rod 22 to be moved in a straight line together along the central axis of cylinder barrel 3, piston rod 22
It moves along a straight line across port 61, the straight line of anti-torsiversion 21 at this time and limit 611 complemented each other to form to piston rod 22
Sports limiting so that piston rod 22 still can guarantee linear motion when by rotary force.Dustband 62 and first bearing 63
Between end cap 6 and piston rod 22；Dustband 62 is located at the top of first bearing 63, and dustband 62 avoids sundries and enters
In piston 2, first bearing 63 is in order to reduce the friction coefficient in 2 motion process of piston.
Again referring to Fig.1, further, the anti-torsion electric cylinder in the present embodiment further includes transmission case 7；Transmission mechanism 4 is set to
In transmission case 7；Cylinder barrel 3 and driving motor 5 are set to the top of transmission case 7；Transmission case 7 forms transmission mechanism 4 and protects, right
Cylinder barrel 3 and driving motor 5 form support；Wherein cylinder barrel 3 is fixed on transmission case 7, driving motor 5 by the second fixing screws 71
It is fixed on transmission case 7 by third fixing screws 72.
The operation principles of the utility model are as follows：Driving motor 5 drives a synchronous pulley 41 rotation, passes through 42 band of synchronous belt
Dynamic another synchronous pulley 41 rotates, and another synchronous pulley 41 drives roller bearing lead screw 11 to rotate by axis connected device 43, roller bearing lead screw 11
Rotation drive roller bearing feed screw nut 12 to move along a straight line along the length direction of roller bearing lead screw 11, synchronous drive is lived
Chock plug 23 and piston rod 22 are moved in a straight line along the central axial direction of roller 3.
Embodiment two：
With reference to Fig. 4, Fig. 5 and Fig. 6, Fig. 4 is the sectional view of anti-torsion electric cylinder in embodiment two, and Fig. 5 is in embodiment two
The sectional view of piston, Fig. 6 are ball wire bar pair, piston and end cap sectional view in embodiment two；Anti- torsion electricity in this implementation
Dynamic cylinder with embodiment one the difference is that, the quantity of anti-torsiversion 21 can be multiple, specifically, the quantity of anti-torsiversion 21
It it is six, the cross section of six anti-torsiversions 21 forms regular hexagon, and there are six limit 611, six limits 611 to make for the tool of port 61
The shape for obtaining port 61 is in regular hexagon, and six anti-torsiversions 21 are adapted with six limits 611 respectively, each anti-torsiversion
21 and one limit 611 faces, and the stable structure of regular hexagon is formed six times by six anti-torsiversions 21 and six limits 611
Limit, it is ensured that piston rod 22 not will produce torsion when the central axial direction along cylinder barrel 3 is moved along a straight line.
Embodiment three：
It is the portions the A enlarged drawing of Fig. 4 in embodiment three with reference to Fig. 4, Fig. 7 and Fig. 8, Fig. 7, Fig. 8 is the B of Fig. 7 in embodiment three
Portion's enlarged drawing；The difference is that, first bearing 63 is specially in anti-torsion electric cylinder and embodiment two in the present embodiment
Needle bearing；First bearing 63 includes needle roller guide sleeve 631, retainer 632 and needle roller 633；Needle roller guide sleeve 631 have inner ring with
And outer ring, the inner ring of needle roller guide sleeve 631 are sheathed on outside piston rod 22, the cross section of 631 inner ring of needle roller guide sleeve is regular hexagon, and
The inner ring of needle roller guide sleeve 631 is adapted with six anti-torsiversions 21；The quantity of retainer 632 is six, and six retainers 632 divide
Not She Yu 631 inner ring of needle roller guide sleeve six faces, and 632 face of each retainer, one anti-torsiversion 21；Each retainer 632 wraps
Multiple needle roller slots 6321 are included, multiple needle roller slots 6321 are set gradually along the short transverse of retainer 632, and each needle roller slot
6321 are each perpendicular to the central axis of piston rod 22, and concretely cross section is arc-shaped groove to needle roller slot 6321；Needle roller 633
Quantity be multiple, each needle roller 633 is correspondingly arranged in a needle roller slot 6321, and each needle roller 633 be bonded and piston rod 22
Outer wall.First bearing 63 is needle bearing, and when the central axial direction along cylinder barrel 3 moves, needle roller 633 pastes piston rod 22
Piston rod 22 is closed to roll in the needle roller slot 6321, while being acted on as bearing, needle roller 633 piston rod 22 can be formed into
The limit of one step has again ensured that piston rod 22 not will produce when the central axial direction along cylinder barrel 3 is moved along a straight line
Torsion.
To sum up：Torsion by the port 61 of end cap 6 and the needle roller 633 of first bearing 63 to the piston rod 22 of piston 2
It is limited, avoids electric cylinder and occur the case where torsion of piston 2 in use, electric cylinder overall performance is caused brokenly
It is bad.
The embodiment of upper described only the utility model, is not intended to limit the utility model.For this field
For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model
Any modification, equivalent substitution, improvement and etc. of work should all be included within the right of the utility model.
Claims (10)
1. a kind of anti-torsion electric cylinder, including：
Ball wire bar pair (1) comprising ball screw (11) and the ball screw nut for being sheathed on the ball screw (11)
(12)；
It is sheathed on the piston (2) of the ball wire bar pair (1) outside；One end of the piston (2) and the ball screw nut
(12) it connects；
It is sheathed on the cylinder barrel (3) of the piston (2) outside；The piston (2) can do straight line along the axis direction of the cylinder barrel (3)
Movement；
Transmission mechanism (4), one end connect one end of the ball screw (11)；
Driving motor (5), output end connect the other end of the transmission mechanism (4)；And
It is covered on the end cap (6) on the cylinder barrel (3) top, the end cap (6) offers port (61)；The piston (2) it is another
One end passes through the port (61) of the end cap (6)；
It is characterized in that：
The piston (2) is equipped with anti-torsiversion (21) along length direction；The port (61) has and the anti-torsion
The compatible limit (611) in position (21)；The anti-torsiversion (21) and described limit (611) face.
2. anti-torsion electric cylinder according to claim 1, which is characterized in that the anti-torsiversion (21) is along the piston
(2) length direction is opened in the side wall of the piston (2), and the central shaft of the anti-torsiversion (21) and the piston (2)
Line is parallel.
3. anti-torsion electric cylinder according to claim 2, which is characterized in that the piston (2) and anti-torsiversion (21)
Cross section composition with trimming circle.
4. anti-torsion electric cylinder according to claim 2, which is characterized in that the quantity of the anti-torsiversion (21) is more
It is a.
5. anti-torsion electric cylinder according to claim 4, which is characterized in that the quantity of the anti-torsiversion (21) is six
A, the cross section of six anti-torsiversions (21) forms regular hexagon.
6. anti-torsion electric cylinder according to claim 1, which is characterized in that between the end cap (6) and the piston (2)
Equipped with dustband (62) and first bearing (63).
7. anti-torsion electric cylinder according to claim 6, which is characterized in that the first bearing (63) is needle bearing,
It includes needle roller guide sleeve (631), retainer (632) and needle roller (633)；
The cross section of needle roller guide sleeve (631) inner ring is regular hexagon, and the inner ring of the needle roller guide sleeve (631) and six institutes
Anti- torsiversion (21) is stated to be adapted；The retainer (632) is set to the inner ring of the needle roller guide sleeve (631)；The needle roller (633)
Quantity be it is multiple, multiple needle rollers (633) set gradually along the short transverse of the retainer (632)；Each needle roller
(633) it is each perpendicular to the central axis of the piston (2), and each needle roller (633) fits in the piston (2).
8. anti-torsion electric cylinder according to claim 1, which is characterized in that the piston (2) include piston rod (22) with
And the piston head (23) being connect with one end of the piston rod (22)；
The piston head (23) connect with the ball screw nut (12)；The anti-torsiversion (21) is opened in the piston rod
(22)；The piston head (23) offers air discharge duct (231).
9. anti-torsion electric cylinder according to claim 1, which is characterized in that the transmission mechanism (4) includes synchronous pulley
(41), synchronous belt (42), axis connected device (43), second bearing (44), the wherein quantity of synchronous pulley (41) are two；
Wherein one synchronous pulley (41) is connect by the axis connected device (43) with one end of the ball screw (11)；It is described
Second bearing (44) is sheathed on the axis connected device (43)；The output of another synchronous pulley (41) and the driving motor (5)
End connection；Two synchronous pulleys (41) are connected by the synchronous belt (42).
10. anti-torsion electric cylinder according to claim 1, which is characterized in that it further includes transmission case (7)；
The transmission mechanism (4) is set in the transmission case (7)；The cylinder barrel (3) and driving motor (5) are set to the biography
The top of dynamic case (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373654.2U CN207910612U (en) | 2018-03-20 | 2018-03-20 | Anti- torsion electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820373654.2U CN207910612U (en) | 2018-03-20 | 2018-03-20 | Anti- torsion electric cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207910612U true CN207910612U (en) | 2018-09-25 |
Family
ID=63558231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820373654.2U Active CN207910612U (en) | 2018-03-20 | 2018-03-20 | Anti- torsion electric cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207910612U (en) |
-
2018
- 2018-03-20 CN CN201820373654.2U patent/CN207910612U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104533942B (en) | Roller type guideway for truss robot | |
| CN103983000A (en) | Air conditioner and door panel moving device thereof | |
| CN207910612U (en) | Anti- torsion electric cylinder | |
| CN201378771Y (en) | Actuator with fast response and high stability | |
| US9102474B2 (en) | Rotation mechanism | |
| CN207884418U (en) | Anti- torsion electric cylinder | |
| CN206190756U (en) | Double stretching pretension profile shaft bearing | |
| CN207835272U (en) | A kind of carbon fiber electric cylinder | |
| CN209383194U (en) | Mechanical expanding shaft and cutting machine | |
| CN207161651U (en) | A kind of double roller spiral ancillary equipment for Changeable Lead screw mandrel | |
| CN209100580U (en) | It is a kind of for connecting the adjusting screw rod of limiting component | |
| CN209516876U (en) | A kind of wind-force electrical machinery stator rotor suit tooling | |
| JP4292782B2 (en) | Linear motion preload adjustment method, linear motion device | |
| CN205935485U (en) | Large -scale space cylinder wood veneer piece structure | |
| CN106763133B (en) | Rotary adjusting and connecting mechanism | |
| CN106641005A (en) | Angle-adjustable tri-pivot universal joint | |
| CN213737855U (en) | Multi-section bent shaft flattening roll | |
| CN105946962B (en) | Steering column assembly and vehicle with it | |
| TW200827581A (en) | Dust-proof structure of a linear guideway | |
| CN206386442U (en) | One kind linear motion output device | |
| CN109139845A (en) | A kind of screw bearing transmission system | |
| CN215666101U (en) | Wind-up roll | |
| CN220488129U (en) | Anti-drop's axle sleeve | |
| CN206708193U (en) | Guiding wheel structure, dryer motor and dryer for dryer motor | |
| CN104834385A (en) | Keyboard and inclination adjustment assembly thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |