CN206004460U - A kind of electric cylinders of built-in anti-rotation structure - Google Patents
A kind of electric cylinders of built-in anti-rotation structure Download PDFInfo
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- CN206004460U CN206004460U CN201620880098.9U CN201620880098U CN206004460U CN 206004460 U CN206004460 U CN 206004460U CN 201620880098 U CN201620880098 U CN 201620880098U CN 206004460 U CN206004460 U CN 206004460U
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- electric cylinders
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- rotation structure
- piston
- cylinder barrel
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Abstract
The utility model discloses a kind of electric cylinders of built-in anti-rotation structure, including motor, cylinder barrel and antirotation keys, cylinder barrel is fixedly linked with antirotation keys；It is provided with piston, ball-screw, feed screw nut and hollow piston rod inside cylinder barrel；The face of cylinder of piston is provided with gathering sill, and antirotation keys are in gathering sill；One side of piston is connected with hollow piston rod, and the other end of piston and feed screw nut are fixedly linked；Feed screw nut is connected on ball-screw, and ball-screw is connected with the output shaft of motor；The two ends of cylinder barrel are connected to drive end bearing bracket and rear end cap, and the other end of hollow piston rod is arranged on drive end bearing bracket.This utility model electric cylinders have the advantages that running noises are low, service life is longer, cylinder body bearing capacity is higher, structure more fastens.
Description
Technical field
This utility model is related to technical field of mechanical transmission, specifically a kind of for industrial automation manufacturing
The electric cylinders of built-in anti-rotation structure.
Background technology
With the continuous improvement of current industrial automation drive technology, to the precision requirement of drive mechanism also increasingly
High.Electric cylinders linear transmission, rolls by ball-screw is relative with feed screw nut, fixing feed screw nut, drives piston rod to turn
It is changed to linear motion.For the precision of transmission, rotary device of setting up defences are ensured on feed screw nut piston, otherwise cannot ensure accurately
Positioning precision.For realizing accurate positioning precision, generally piston is provided with guide pad, cylinder barrel is provided with gathering sill, or
Guiding rotation-preventing mechanism is added outside electric cylinders.The former, due to cylinder barrel need to be molded with processing, inner wall of cylinder circle needs to open up gathering sill up and down,
Limited by die sinking process technology when opening cylinder barrel drawing-die, it is difficult to ensure that the precision of cylinder barrel；Simultaneously because being subject to installing space
Be limited in the structure that gathering sill is set on cylinder barrel, necessarily lead to guide pad less to the contact area of cylinder barrel gathering sill, guide pad
Larger to the pressure of cylinder barrel gathering sill and easy to wear under big twisting force, lead to the degree of accuracy of actuating device not high.This lead
It is that cylinder barrel gathering sill is easier to wear out failure to structure common problem, noise is big, and manufacturing cost is high, potential fault
The problems such as rate is high.And the latter then causes external equipment installation volume larger, integrated level is not high, installs in equipment and is vulnerable in application
The restriction of installing space, and manufacturing cost is higher.
Content of the invention
Technical problem to be solved in the utility model is to propose that a kind of running noises are low, service life is longer, cylinder body
Bearing capacity is higher, the electric cylinders of the built-in anti-rotation structure of structure more fastening.
For solving above-mentioned technical problem, a kind of electric cylinders of built-in anti-rotation structure of this utility model include motor, cylinder barrel and prevent
Turn key, described cylinder barrel is fixedly linked with described antirotation keys；It is provided with piston, ball-screw, feed screw nut and sky inside described cylinder barrel
It is indecisive and changeable stopper rod；The face of cylinder of described piston is provided with gathering sill, and described antirotation keys are in described gathering sill；The one of described piston
Side is connected with described hollow piston rod, and the other end of described piston is fixedly linked with described feed screw nut；Described feed screw nut
It is connected on described ball-screw, described ball-screw is connected with the output shaft of described motor；The two ends of described cylinder barrel connect respectively
It is connected to drive end bearing bracket and rear end cap, the other end of described hollow piston rod is arranged on described drive end bearing bracket.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, it also includes angular contact ball bearing, and described angular contact ball bearing sets
In described rear end cap, the right-hand end of described ball-screw is installed on described angular contact ball bearing, described angular contact ball bearing
Right side by locking nut fasten locking.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, it also includes bearing gland, and described bearing gland is after described
In end cap, described bearing gland is pressed on the end face of described angular contact ball bearing.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, it also includes piston rod stud, described hollow piston rod another
End is arranged on described drive end bearing bracket and is connected with described piston rod stud.
The rod nut that is respectively arranged at two ends with of a kind of electric cylinders of above-mentioned built-in anti-rotation structure, described drive end bearing bracket and rear end cap is pacified
Dress hole, described drive end bearing bracket and rear end cap two ends are passed through pull bar and are locked with rod nut.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, the two ends face of cylinder of described piston is provided with groove, in described groove
It is provided with wear ring.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, the side of described piston is provided with magnet ring groove, is provided with described magnet ring groove
Magnet ring, and pass through holding screw positioning and locking.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, the installed surface of described drive end bearing bracket and described hollow piston rod is provided with anti-
Dirt composite rim.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, the installed surface of described drive end bearing bracket and described hollow piston rod is provided with leads
To set.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, described drive end bearing bracket is provided with bumper with the installed surface of described cylinder barrel.
A kind of electric cylinders of above-mentioned built-in anti-rotation structure, the outer wall of described cylinder barrel is embedded with magnetic induction switch.
Due to employing technique scheme, compared with prior art, it has essence following outstanding to this utility model
Property feature and marked improvement：1st, cylinder interior compact conformation is reasonable, integrated level is high, and the electric cylinders outputting torsion of same cylinder diameter is bigger,
Resist anti-torque higher；2nd, running noises are low, and oil filler point and steam vent need not be set up in outside, simplify cylinder body surface structure；3、
Avoid the abrasion to cylinder barrel, service life is longer, more suitable for the occasion of high-accuracy frequent motion；4th, cylinder body integrated connection knot
Structure employs the mode of pull bar and rod nut fastening, so that cylinder body bearing capacity is higher, structure more fastens, firm.5、
Magnetic induction switch, by the way of embedded, be attached to and eliminate external installing component on cylinder body, save installing space, in application
On have broader field.
Brief description
Fig. 1 is the front internal structure schematic diagram of this utility model electric cylinders；
Fig. 2 is the cylinder body section structure schematic diagram with respect to Fig. 1；
Fig. 3 is the mounting structure schematic diagram with magnetic induction switch for the cylinder barrel of this utility model electric cylinders；
Fig. 4 is the close-up schematic view at B in Fig. 3.
Specific embodiment
As shown in Figure 1, Figure 2 and Figure 3, the electric cylinders of the built-in anti-rotation structure of this utility model include cylinder barrel 8 and antirotation keys 9, cylinder
Cylinder 8 axial directions are provided with screw mounting hole, and the axial direction of antirotation keys 9 is provided with screwed hole, and cylinder barrel 8 and antirotation keys 9 are passed through short
Head soket head cap screw 7 connects the internal guiding mechanism of formation.It is provided with drive end bearing bracket 3 and rear end cap 19 at the two ends of cylinder barrel 8, by pull bar
25 and rod nut 24 locking connect formed cylinder part.The right-hand member of drive end bearing bracket 3 is provided with the inner hole of boss and cylinder barrel 8, front
End cap 3 is provided with dust-proof composite rim 2, fairlead 4 and bumper 5, integrate dust-proof, guiding, anticollision, structure install compact,
Coordinate it is ensured that good axiality and wearability with hollow piston rod 6.The outer end wall of cylinder barrel 8 is provided with antirotation keys installing hole,
And installing hole communicates with inside cylinder barrel 8, remove from and open up oil filler point on outer wall of cylinder block, make cylinder body more succinctly attractive in appearance.Rear end cap
19 are provided with bearing mounting hole and bearing gland installing hole, are respectively used to arrange angular contact ball bearing 18 and bearing gland 17.Corner connection
The bearing mounting hole of the cylindrical and rear end cap 19 of tactile ball bearing 18 is fitted close, and angular contact ball bearing 18 loads rear end cap 19 to the right side
End boss, the right-hand member of bearing gland 17 is provided with boss and loads in the bearing mounting hole of rear end cap 19, the left end of bearing gland 17
It is provided with boss and cylinder barrel 8 inner hole, bumper groove assembling bumper is provided with the left end boss of bearing gland 17.Ball wire
Thick stick 10 forms ball-screw assembly with feed screw nut 14.Ball-screw 10 right-hand member equipped with angular contact ball bearing 18, angular contact
Locking nut 23 fastening locking is passed through in ball bearing 18 right side, prevents bearing from having displacement and the impact transmission accuracy of axial direction.
The brearing bore of angular contact ball bearing 18 is fitted close with ball-screw 10 right-hand member bearing column face position, loads bearing and ball
Fit in leading screw bearing face of cylinder position left side.Angular contact ball bearing 18 adopts paired amphistyly angular contact ball bearing, angular contact
The other end of ball bearing 18 and bearing gland 17 compression fit.Piston 15 right-hand member is provided with feed screw nut installing hole, and piston 15 is right
End face is provided with threaded mounting hole, and feed screw nut 14 is connected by hexagon socket cap head screw 16 with piston 15.Piston inner hole and silk
Thick stick nut cylindrical employing interference fits are it is ensured that the concentricity of piston 15 and ball screw assembly,.Piston 15 two ends cylindrical on set
Fluted, in groove, parcel is provided with wear ring 11, and wear ring 11 wraps up and disconnecting to antirotation keys 9 position, avoids piston 15 and anticollision
Key 9 axial direction moves（See at A in Fig. 2）.It is provided with magnet ring groove, groove passes through tight built with magnet ring 13, magnet ring 13 on the left of piston 15
Determine screw 12 fixing.Hollow piston rod 6 is threadedly attached in the left end of piston 15.The other end of hollow piston rod 6 and piston
Bar stud 1 is threaded connection, and piston rod stud 1 is connected with external equipment.Forward and backward end cap 3,9 two ends are provided with rod nut peace
Dress hole, the integrally-built locking of cylinder body is locked with rod nut 24 by the pull bar 25 of drive end bearing bracket 3 and rear end cap 19 two ends；Cylinder barrel
The 8 power effects that are squeezed are delivered to bearing gland 17, thus diagonal contact ball bearing 18 produces pretightning force so as to reach cylinder body lock
Tightly.Electric cylinders cylinder body motor cabinet 20 is connected by screw on rear end cap 19, and servomotor 22 is connected by screw with motor cabinet 20,
Servomotor 22 main shaft and ball-screw 10 are connected in motor cabinet 20 by shaft coupling 21, transmit power.
The operation principle of this utility model electric cylinders is as follows：Servomotor 22 provides pulse signal by external control deviceses,
Servomotor 22 main shaft starts to rotate transmission torsion, drives ball-screw 10 to rotate by shaft coupling 21；Angular contact ball bearing 18
Support ball-screw 10 to rotate, pass to feed screw nut 14, feed screw nut 14 band piston 15 rotates；Because piston 15 is provided with
Gathering sill, forms internal rotation-preventing mechanism with cylinder body antirotation keys 9, so that ball screw assembly, is converted to linear motion by rotary motion
Form linear transmission mechanism；Gathering sill is had to form moving back and forth of axial direction along antirotation keys 9 with cylinder barrel 8 on piston 15.Living
Support piston 15 mobile by wear ring 11 and cylinder barrel 8 inwall on plug 15；Piston 15 drives hollow piston rod 6, hollow piston rod 6
Drive piston rod stud 1 to do axial direction to move.
As shown in Figure 3 and Figure 4, magnetic induction switch 26 is attached on cylinder body by the way of embedded（On the outer wall of cylinder barrel 8）, section
About installing space, rational in infrastructure, compact.Magnetic induction switch 26 is used for detecting electric cylinders hollow piston rod 6 shift position, it is to avoid mistake
Displacement is clashed into.Servo electric cylinders work under complex environment and only need to regularly note grease.
Claims (10)
1. a kind of electric cylinders of built-in anti-rotation structure, including motor and cylinder barrel it is characterised in that it also includes antirotation keys, described cylinder
Cylinder is fixedly linked with described antirotation keys；It is provided with piston, ball-screw, feed screw nut and hollow piston rod inside described cylinder barrel；Institute
The face of cylinder stating piston is provided with gathering sill, and described antirotation keys are in described gathering sill；One side of described piston with described
Hollow piston rod is connected, and the other end of described piston is fixedly linked with described feed screw nut；Described feed screw nut is connected to described
On ball-screw, described ball-screw is connected with the output shaft of described motor；The two ends of described cylinder barrel are connected to drive end bearing bracket
And rear end cap, the other end of described hollow piston rod is arranged on described drive end bearing bracket.
2. as claimed in claim 1 a kind of electric cylinders of built-in anti-rotation structure it is characterised in that it also includes angular contact ball axle
Hold, in described rear end cap, the right-hand end of described ball-screw is installed on described angular contact ball axle to described angular contact ball bearing
Hold, the right side of described angular contact ball bearing fastens locking by locking nut.
3. as claimed in claim 2 a kind of electric cylinders of built-in anti-rotation structure it is characterised in that it also includes bearing gland,
In described rear end cap, described bearing gland is pressed on the end face of described angular contact ball bearing described bearing gland.
4. the electric cylinders of a kind of built-in anti-rotation structure as described in claim 1,2 or 3 are it is characterised in that it also includes piston
Bar stud, the other end of described hollow piston rod is arranged on described drive end bearing bracket and is connected with described piston rod stud.
5. a kind of built-in anti-rotation structure as described in claim 1,2 or 3 electric cylinders it is characterised in that described drive end bearing bracket and after
End cap be respectively arranged at two ends with rod nut installing hole, described drive end bearing bracket and rear end cap two ends are passed through pull bar and are locked with rod nut
Tightly.
6. the electric cylinders of a kind of built-in anti-rotation structure as described in claim 1,2 or 3 are it is characterised in that the two ends of described piston
The face of cylinder is provided with groove, is provided with wear ring in described groove.
7. the electric cylinders of a kind of built-in anti-rotation structure as described in claim 1,2 or 3 are it is characterised in that the side of described piston
It is provided with magnet ring groove, in described magnet ring groove, is provided with magnet ring, and pass through holding screw positioning and locking.
8. the electric cylinders of a kind of built-in anti-rotation structure as described in claim 1,2 or 3 are it is characterised in that described drive end bearing bracket and institute
The installed surface stating hollow piston rod is provided with dust-proof composite rim and fairlead.
9. the electric cylinders of a kind of built-in anti-rotation structure as described in claim 1,2 or 3 are it is characterised in that described drive end bearing bracket and institute
The installed surface stating cylinder barrel is provided with bumper.
10. the electric cylinders of a kind of built-in anti-rotation structure as described in claim 1,2 or 3 are it is characterised in that the outer wall of described cylinder barrel
On be embedded with magnetic induction switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620880098.9U CN206004460U (en) | 2016-08-15 | 2016-08-15 | A kind of electric cylinders of built-in anti-rotation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620880098.9U CN206004460U (en) | 2016-08-15 | 2016-08-15 | A kind of electric cylinders of built-in anti-rotation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206004460U true CN206004460U (en) | 2017-03-08 |
Family
ID=58200044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620880098.9U Active CN206004460U (en) | 2016-08-15 | 2016-08-15 | A kind of electric cylinders of built-in anti-rotation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206004460U (en) |
-
2016
- 2016-08-15 CN CN201620880098.9U patent/CN206004460U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |