CN102857021B - Servo electric cylinder - Google Patents
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- CN102857021B CN102857021B CN201210300150.5A CN201210300150A CN102857021B CN 102857021 B CN102857021 B CN 102857021B CN 201210300150 A CN201210300150 A CN 201210300150A CN 102857021 B CN102857021 B CN 102857021B
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- 230000013011 mating Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
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- 238000006073 displacement reaction Methods 0.000 abstract 1
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Abstract
The invention relates to a servo electric cylinder, which comprises a cylinder body, a screw, a screw nut, a piston and a piston rod. The servo electric cylinder also comprises a locking device, a cylinder body clamping slot and a clamping ring capable of contracting and expanding in the radial direction. The locking device comprises a displacement limiting mechanism and is arranged between the piston and a sliding connection part so that the piston can slide for a preset distance relative to the axial direction of the sliding connection part; the cylinder body clamping slot is arranged in the peripheral inner sidewall of the cylinder body; when the clamping ring is contracted, the clamping ring is arranged between the piston and the sliding connection part, the outer circle of the clamping ring is matched with the inner wall of the cylinder body in a sliding way; and the clamping ring can be expanded in the radial direction and embedded in the cylinder body clamping slot under matching effects of approaching of the piston and the sliding connection part. The locking device of the servo electric cylinder of the prior art has the defects of over complex structure and high costs of manufacturing, installation and maintenance, therefore, the invention provides the servo electric cylinder which has the advantages of simple structure and low costs of manufacturing, installation and maintenance.
Description
Technical field
The present invention relates to a kind of electric cylinder, specifically a kind of servo electric jar, belongs to machine field.
Background technology
Servo electric jar is by the modular product of servomotor and leading screw integrated design, converts rotatablely moving of servomotor to rectilinear motion, has advantages of precise rotation, Position Control, thereby uses extensively.
Chinese patent literature CN101106297A discloses a kind of three grades of ball screw electric cylinders, servomotor drives first order screw mandrel to rotate by double rolling key clutch, first order nut is by being connected with first order inner cylinder body with the self-locking mechanism of mono-directional overrun clutch, the hollow screw mandrel in the second level is fixedly connected with second level nut simultaneously, third level nut is fixedly connected with push rod, and the other end of push rod is connected with earrings.
Above-mentioned Chinese patent literature adopts the parts of bidirectional clutch and one-way clutch and cooperation thereof to carry out self-locking to the ball screw of every one-level, prevents ball-screw pressurized rollback.If while only considering one-level ball screw, when its work, the latch-up structure of self-locking is to be completed by the parts of one-way clutch and cooperation thereof, but, even the ball screw of single-stage, its latch-up structure too complex, the inner ring that is mono-directional overrun clutch is fixed on first order nut, outer ring and the sleeve of mono-directional overrun clutch are fixed, thrust ball bearing is installed on sleeve, the opposite side of thrust ball bearing is arranged on slide block, on slide block, cover has spring, spring is compressed by slide block and cylinder body block, cylinder body block and intermediate mass are fixedly mounted on first order inner cylinder body, sleeve and intermediate mass can slide to axial, on the end face of intermediate mass inner side, friction plate is installed, sleeve is pressed on friction plate on intermediate mass.Therefore, while using three grades of ball screw electric cylinders in above-mentioned patent documentation, occur damaging once a certain parts and need repairing, because of its complex structure, thereby check and waste time and energy, check out a certain parts occur damaging after maintenance and replace to install and also waste time and energy very much, and multi-part so, the expense of manufacturing and installing is also very high.
And, above-mentioned Chinese patent literature needs motor constantly to provide power and the suffered load of earrings to carry out stress balance while adopting bidirectional clutch and one-way clutch to carry out self-locking to ball screw, the operating mode keeping for a long time in final position for a long time for needs, the self-locking device that this patent documentation provides is subject to counter-force for a long time, freewheel clutch wearing and tearing are large, and positioning precision is low.
Summary of the invention
The locking device too complex that first technical problem to be solved by this invention is servo electric jar in prior art, manufacture, install and maintenance cost high, thereby provide a kind of simple in structure, manufacture, install and maintenance the low servo electric jar of cost.
Second technical problem to be solved by this invention be in prior art for needs the servo electric jar of the long-term operating mode keeping in final position for a long time, its locking device wearing and tearing are large, positioning precision is low, be applicable to need the operating mode wearing and tearing of the long-time long-term maintenance in final position little thereby provide a kind of, the servo electric jar that positioning precision is high.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of servo electric jar, comprises
Cylinder body, for having the hollow tube of openend and blind end, described cylinder body blind end has a perforate;
Leading screw, described leading screw is positioned in described cylinder body, and described leading screw one end is fixedly connected with the output of transmission device through the cylinder body openend of described cylinder body;
Feed screw nut, described feed screw nut coordinates with described leading screw and can be reciprocating along the axis of described leading screw;
Piston, is tubular cylinder, and described piston coaxial is fixed by socket on described feed screw nut, and described piston lateral wall and described cylinder body madial wall are slidably matched; With
Piston rod, described piston rod is through the perforate of described cylinder body blind end, and the one end in described cylinder body is connected by the slide contact part and the described piston that are fixed on this end;
Also comprise locking device, it comprises
Offset qualification mechanism, is arranged between described piston and described slide contact part, makes the relatively described slide contact part of the described piston preset distance that slides axially;
Cylinder body draw-in groove, is arranged on the circumferential madial wall of described cylinder body; With
The snap ring of expandable, described snap ring is under contraction state, and between described piston and described slide contact part, and its cylindrical and described inboard wall of cylinder block are slidably matched; And radially open and embed described cylinder body draw-in groove under described piston and the close mobile mating reaction of described slide contact part.
Arbitrary side that described piston is relative with described snap ring is provided with the guide surface that is suitable for described piston and enters described snap ring endoporus.
Described guide surface is inclined-plane or arc-shaped surface.
Described guide surface is arranged on the inner peripheral surface of snap ring near described piston one side.
Described offset qualification mechanism comprises the callback device that the groove that is molded on described slide contact part and described piston arrange near described cylinder body blind end one side; The axial dimension that described callback device axial dimension and described preset distance sum are described groove; Described callback device is positioned at described groove and can pulls described slide contact part to move along described cylinder barrel openend by callback device described in described groove.
Described groove is annular groove.
Described groove is positioned at the side near described cylinder body blind end.
Described callback device is to be arranged on the madial wall of described piston cavity and the flange towards described piston cavity axis direction; Or for being arranged on described piston near described cylinder body blind end and its external diameter equates with described piston external diameter, its internal diameter is less than described piston inner diameter annular element, the inner circle of described annular element and described groove fit.
Described slide contact part and described piston rod are one-body molded.
On described piston, axially offer air vent hole along it.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) servo electric jar of the present invention, comprises cylinder body, leading screw, feed screw nut, piston and piston rod; Also comprise locking device, it comprises offset qualification mechanism, is arranged between described piston and described slide contact part, makes the relatively described slide contact part of the described piston preset distance that slides axially; Cylinder body draw-in groove, is arranged on the circumferential madial wall of described cylinder body; The snap ring of expandable, described snap ring is under contraction state, and between described piston and described slide contact part, and its cylindrical and described inboard wall of cylinder block are slidably matched; And radially open and embed described cylinder body draw-in groove under described piston and the close mobile mating reaction of described slide contact part; Described snap ring by described piston near mobile by being stuck in cylinder body draw-in groove tightly, thereby reach the object to piston rod locking, by described piston away from movement, described snap ring radial contraction, described offset qualification mechanism pulls described slide contact part, described slide contact part promotes snap ring and shifts out from cylinder body draw-in groove, thereby reach the object to piston rod release, servo electric jar of the present invention cost simple in structure, that manufacture, install and keep in repair is low, even if need the operating mode wearing and tearing of the long-time long-term maintenance in final position little, positioning precision is high.
(2) servo electric jar of the present invention, arbitrary side that described piston is relative with described snap ring is provided with the guide surface that is suitable for described piston and enters described snap ring endoporus, be conducive in endoporus that described piston inserts described snap ring, preferred described guide surface is inclined-plane or arc-shaped surface, is convenient to manufacture.
(3) servo electric jar of the present invention, described offset qualification mechanism comprises the callback device that the groove that is molded on described slide contact part and described piston arrange near described cylinder body blind end one side; The axial dimension that described callback device axial dimension and described preset distance sum are described groove; Described callback device is positioned at described groove and can pulls described slide contact part to move along described cylinder barrel openend by callback device described in described groove, and this is simple in structure, and offset qualification is stable.
(4) servo electric jar of the present invention, described cylinder body draw-in groove is positioned at the side near described blind end, snap ring is stuck in described cylinder body draw-in groove, the power that piston rod is subject to passes to cylinder body by snap ring, and piston, leading screw, feed screw nut can be not stressed, feed screw nut wearing and tearing are little, long service life, and quality of fit is high.
(5) servo electric jar of the present invention, described callback device is to be arranged on the madial wall of described piston cavity and the flange towards described piston cavity axis direction, this structure does not take the axial dimension of electric cylinder; Or for being arranged on described piston near described cylinder body blind end and its external diameter equates with described piston external diameter, its internal diameter is less than described piston inner diameter annular element, the inner circle of described annular element and described groove fit, this structure, easy for installation, manufacture is simply.
(6) servo electric jar of the present invention axially offers air vent hole along it on described piston, and therefore piston air communication in chamber about when motion, can not produce pressure reduction, reduces energy loss.
Brief description of the drawings
For content of the present invention is more likely to be clearly understood, below in conjunction with accompanying drawing, the present invention is further detailed explanation, wherein,
Fig. 1. be the schematic diagram of servo electric jar of the present invention while being in the lock state;
Fig. 2. be the A portion enlarged drawing of Fig. 1
Fig. 3. be the schematic diagram of servo electric jar of the present invention in the time of unlocked state;
Fig. 4. be the B portion enlarged drawing of Fig. 3;
Fig. 5. be that callback device of the present invention is the schematic diagram while being in the lock state in the described servo electric jar of flange.
In figure, Reference numeral is expressed as: 10-servomotor, 20-transmission device, 30-cylinder body, 31-cylinder body blind end, 32-cylinder body openend, 33-cylinder body draw-in groove, 40-leading screw, 50-feed screw nut, 60-piston, 61-callback device, 70-snap ring, 80-piston rod, 90-slide contact part, 91-groove.
Embodiment
embodiment 1
Be illustrated in figure 1 servo electric jar of the present invention, comprise
Cylinder body 30, for having the hollow tube of openend 32 and blind end 31, described cylinder body blind end 31 has a perforate;
Leading screw 40, described leading screw 40 is positioned in described cylinder body 30, and described leading screw 40 one end are fixedly connected with the output of transmission device 20 through the cylinder body openend 32 of described cylinder body;
Feed screw nut 50, described feed screw nut 50 coordinates with described leading screw 40 and can be reciprocating along the axis of described leading screw 40; With
Piston 60, is tubular cylinder, and the coaxial socket of described piston 60 is fixed on described feed screw nut 50, and described piston 60 lateral walls and described cylinder body 30 madial walls are slidably matched;
Piston rod 80, described piston rod 80 is through the perforate of described cylinder body blind end 31, and the one end in described cylinder body 30 is connected with described piston 60 by the slide contact part 90 being fixed on this end;
Also comprise locking device, it comprises
Offset qualification mechanism, be arranged between described piston 60 and described slide contact part 90, make the relatively described slide contact part 90 of described piston 60 preset distance that slides axially, the mechanism of offset qualification described in the present embodiment comprises the callback device 61 that the groove 91 that is molded on described slide contact part 90 and described piston 60 arrange near described cylinder body blind end 31 1 sides; The axial dimension that described callback device 61 axial dimensions and described preset distance sum are described groove 91; Described callback device 61 is positioned at described groove 91 and can pulls described slide contact part 90 to move along described cylinder barrel openend by callback device 61 described in described groove 91, described callback device 61 in the present embodiment is for to be arranged on described piston 60 near described cylinder body blind end 31 and its external diameter and the annular element that described piston 60 external diameters equate, its internal diameter is less than described piston 60 internal diameters, and the inner circle of described annular element coordinates with described groove 91;
Cylinder body draw-in groove 33, is arranged on the circumferential madial wall of described cylinder body 30;
The snap ring 70 of expandable, described snap ring 70 is under contraction state, and between described piston 60 and described slide contact part 90, and its cylindrical and described cylinder body 30 inwalls are slidably matched; And radially open and embed described cylinder body draw-in groove 33 under described piston 60 and the close mobile mating reaction of described slide contact part 90.
Further, the present embodiment is on the basis of above-described embodiment, and described piston 60 and described snap ring 70 both relative arbitrary sides are provided with the guide surface that is suitable for described piston 60 and enters described snap ring 70 endoporus; It is inclined-plane that described guide surface is set in the present embodiment, and described guide surface is arranged on the inner peripheral surface of snap ring 70 near described piston 60 1 sides.
As disposable embodiment, the present embodiment is on the basis of above-described embodiment, and it is to be arranged on the arc-shaped surface of described piston 60 near described snap ring 70 1 sides that described guide surface is set in the present embodiment.
Described in the present embodiment when servo-electric cylinder working, motor forward, it comprises the following course of work:
(a) described output shaft passes to described leading screw 40 by power by transmission device 20;
(b) described leading screw 40 rotarily drives described feed screw nut 50 and piston 60 and axially moves toward described cylinder body blind end 31 forwards along described cylinder body 30;
(c) described piston 60 promotes described callback device 61 forwards and moves;
(d) described callback device 61 promotes described snap ring 70 and moves, described snap ring 70 promotes described slide contact part 90, described slide contact part 90 drives described piston rod 80 to move, in the time running into described cylinder body draw-in groove 33, described snap ring 70 circumferentially extendings also snap in described cylinder body draw-in groove 33, when the side that described slide contact part 90 is positioned at described cylinder body blind end 31 props up described cylinder body blind end 31, described piston rod 80 stops mobile;
(e) described callback device 61 forwards of described piston continuation promotion move and insert in the endoporus of described snap ring 70, in the time that described callback device 61 props up described slide contact part 90 away from described cylinder body blind end 31 1 side, described callback device 61 stops mobile, realize the piston rod 80 of described servo electric jar is axially locked, as shown in Figure 2, servo electric jar of the present invention is not only realized the axial locking to described piston rod 80, and described snap ring 70 is carried out to locking radial, ensure that servo electric jar piston rod 80 axially loadeds in the time of lock-out state can not promote described snap ring 70 radial contraction and skid off from the inclined-plane of described cylinder body draw-in groove 33, and the power that piston rod 80 is subject to passes to cylinder body 30 by snap ring 70, described piston 60 and feed screw nut 50 can be not stressed, protection feed screw nut 50 is not frayed, long service life, quality of fit is high.
When servomotor 10 reverses, it comprises the following course of work:
(i) described leading screw 40 rotarily drives described feed screw nut 50 and moves, described feed screw nut 50 pulls described piston 60 to move, described piston 60 pulls described callback device 61 oppositely move and exit from the endoporus of described snap ring 70, described snap ring 70 radial contraction, as shown in Figure 3;
Described callback device 61 by with described groove coordinating near cylinder barrel openend one side, pull the slide contact part 90 of described piston rod 80 oppositely to move, as shown in Figure 4, described slide contact part 90 promotes described snap ring 70 and shifts out from described cylinder body draw-in groove 33, realizes the release to described piston rod 80;
(iii) described leading screw 40 rotarily drives described feed screw nut 50 along axially reverse movement of past described cylinder body openend 32 continuation of described cylinder body 30.
embodiment 2
Be illustrated in figure 5 servo electric jar in the present embodiment, comprise
Cylinder body 30, for having the hollow tube of openend 32 and blind end 31, described cylinder body blind end 31 has a perforate;
Leading screw 40, described leading screw 40 is positioned in described cylinder body 30, and described leading screw 40 one end are fixedly connected with the output of transmission device 20 through the cylinder body openend 32 of described cylinder body;
Feed screw nut 50, described feed screw nut 50 coordinates with described leading screw 40 and can be reciprocating along the axis of described leading screw 40; With
Piston 60, is tubular cylinder, and the coaxial socket of described piston 60 is fixed on described feed screw nut 50, and described piston 60 lateral walls and described cylinder body 30 madial walls are slidably matched;
Piston rod 80, described piston rod 80 is through the perforate of described cylinder body blind end 31, one end in described cylinder body 30 is connected with described piston 60 by the slide contact part 90 being fixed on this end, described slide contact part 90 and described piston rod 80 is set one-body molded in the present embodiment;
Also comprise locking device, it comprises
Offset qualification mechanism, be arranged between described piston 60 and described slide contact part 90, make the relatively described slide contact part 90 of described piston 60 preset distance that slides axially, the mechanism of offset qualification described in the present embodiment comprises the callback device 61 that the groove 91 that is molded on described slide contact part 90 and described piston 60 arrange near described cylinder body blind end 31 1 sides; The axial dimension that described callback device 61 axial dimensions and described preset distance sum are described groove 91; Described callback device 61 is positioned at described groove 91 and can pulls described slide contact part 90 to move along described cylinder barrel openend by callback device 61 described in described groove 91, described groove 91 in the present embodiment is annular groove, and described callback device 61 is for being arranged on the madial wall of described piston 60 inner chambers and the flange towards described piston 60 inner chamber axis directions;
Cylinder body draw-in groove 33, is arranged on the circumferential madial wall of described cylinder body 30; Described groove 91 is set in the present embodiment and is positioned at the side near described cylinder body blind end 31;
The snap ring 70 of expandable, described snap ring 70 is under contraction state, and between described piston 60 and described slide contact part 90, and its cylindrical and described cylinder body 30 inwalls are slidably matched; And radially open and embed described cylinder body draw-in groove 33 under described piston 60 and the close mobile mating reaction of described slide contact part 90.
Further, the present embodiment, on the basis of above-described embodiment, axially offers air vent hole along it on described piston 60.
When work, the leading screw 40 of described servo electric jar given the transmission of power of motor by transmission device 20 by servomotor 10, and when motor forward, it comprises the following course of work:
(a) motor passes to described leading screw 40 by power by transmission device 20;
(b) described leading screw 40 rotarily drives described feed screw nut 50 and axially moves toward described cylinder body blind end 31 forwards along described cylinder body 30;
(c) described feed screw nut 50 promotes described piston 60 forwards and moves;
(d) described piston 60 promotes described snap ring 70 and moves, described snap ring 70 promotes described slide contact part 90, described slide contact part 90 promotes described piston rod 80 and moves, in the time running into described cylinder body draw-in groove 33, described snap ring 70 circumferentially extendings also snap in described cylinder body draw-in groove 33, when described slide contact part 90 props up described cylinder body blind end 31 near a side of described cylinder body blind end 31, described piston rod 80 stops mobile;
(e) described piston 60 continues in endoporus that forward moved and inserted described snap ring 70, when described piston 60 props up described slide contact part 90 away from described cylinder body blind end 31 1 side, described piston 60 stops mobile, realize the axial locking to described servo electric jar, servo electric jar of the present invention is not only realized the axial locking to described piston rod 80, and described snap ring 70 is carried out to locking radial, ensure that servo electric jar piston rod 80 axially loadeds in the time of lock-out state can not promote described snap ring 70 radial contraction and skid off from the arc-shaped concave of described cylinder body draw-in groove 33, and the power that piston rod 80 is subject to passes to cylinder body 30 by snap ring 70, described piston 60 and feed screw nut 50 can be not stressed, protection feed screw nut 50 is not frayed, long service life, quality of fit is high.
When servomotor 10 reverses, it comprises the following course of work:
(i) described leading screw 40 rotarily drives described feed screw nut 50 and moves, and described feed screw nut 50 pulls described piston 60 oppositely to move, and described piston 60 exits from the endoporus of described snap ring 70, described snap ring 70 radial contraction;
(ii) the described flange of described piston 60 inner chambers coordinates and pulls the slide contact part 90 of described piston rod 80 oppositely to move near the sidewall of described cylinder barrel openend one side with described groove, described slide contact part 90 promotes described snap ring 70 and shifts out from described cylinder body draw-in groove 33, realizes the release to described piston rod 80;
(iii) described leading screw 40 rotarily drives described feed screw nut 50 along axially reverse movement of past described cylinder body openend 32 continuation of described cylinder body 30.
In the present invention, definition is moved as positive movement along described cylinder body blind end 31, moves as counter motion along described cylinder body openend 32.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And the apparent variation of being extended out thus or variation are still among protection scope of the present invention.
Claims (10)
1. a servo electric jar, comprises
Cylinder body (30), for having the hollow tube of openend (32) and blind end (31), described cylinder body blind end (31) has a perforate;
Leading screw (40), described leading screw (40) is positioned in described cylinder body (30), and described leading screw (40) one end is fixedly connected with the output of transmission device (20) through the cylinder body openend (32) of described cylinder body;
Feed screw nut (50), described feed screw nut (50) coordinates with described leading screw (40) and can be reciprocating along the axis of described leading screw (40);
Piston (60), is tubular cylinder, and it is upper that the coaxial socket of described piston (60) is fixed on described feed screw nut (50), and described piston (60) lateral wall and described cylinder body (30) madial wall are slidably matched; With
Piston rod (80), described piston rod (80) is through the perforate of described cylinder body blind end (31), and the one end in described cylinder body (30) is connected with described piston (60) by the slide contact part (90) being fixed on this end;
It is characterized in that, also comprise
Locking device, it comprises
Offset qualification mechanism, is arranged between described piston (60) and described slide contact part (90), makes the relatively described slide contact part of described piston (60) (90) preset distance that slides axially;
Cylinder body draw-in groove (33), is arranged on the circumferential madial wall of described cylinder body (30);
The snap ring (70) of expandable, described snap ring (70) is under contraction state, be positioned between described piston (60) and described slide contact part (90), and its cylindrical and described cylinder body (30) inwall are slidably matched; And radially open and embed described cylinder body draw-in groove (33) under described piston (60) and the close mobile mating reaction of described slide contact part (90).
2. servo electric jar according to claim 1, it is characterized in that, both relative arbitrary sides of described piston (60) and described snap ring (70) are provided with the guide surface that is suitable for described piston (60) and enters described snap ring (70) endoporus.
3. servo electric jar according to claim 2, is characterized in that, described guide surface is inclined-plane or arc-shaped surface.
4. servo electric jar according to claim 3, is characterized in that, described guide surface is arranged on the inner peripheral surface of snap ring (70) near described piston (60) one sides.
5. according to the arbitrary described servo electric jar of claim 1-4, it is characterized in that, described offset qualification mechanism comprises the callback device (61) that the groove (91) that is molded on described slide contact part (90) and described piston (60) arrange near described cylinder body blind end (31) one sides; The axial dimension that described callback device (61) axial dimension and described preset distance sum are described groove (91); Described callback device (61) is positioned at described groove (91) and can pulls described slide contact part (90) to move along cylinder barrel openend by the described callback device of described groove (91) (61).
6. servo electric jar according to claim 5, is characterized in that, described groove (91) is annular groove.
7. servo electric jar according to claim 6, is characterized in that, described groove (91) is positioned at the side near described cylinder body blind end (31).
8. according to the servo electric jar described in claim 6 or 7, it is characterized in that, described callback device (61) is for being arranged on the madial wall of described piston (60) inner chamber and the flange towards described piston (60) inner chamber axis direction; Or for being arranged on described piston (60) near described cylinder body blind end (31) and its external diameter and described piston (60) annular element that external diameter equates, its internal diameter is less than described piston (60) internal diameter, the inner circle of described annular element coordinates with described groove (91).
9. according to the servo electric jar described in any one in claim 1-4, it is characterized in that, described slide contact part (90) and described piston rod (80) are one-body molded.
10. according to the servo electric jar described in any one in claim 1-4, it is characterized in that, above axially offer air vent hole along it at described piston (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210300150.5A CN102857021B (en) | 2012-08-22 | 2012-08-22 | Servo electric cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210300150.5A CN102857021B (en) | 2012-08-22 | 2012-08-22 | Servo electric cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102857021A CN102857021A (en) | 2013-01-02 |
| CN102857021B true CN102857021B (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210300150.5A Active CN102857021B (en) | 2012-08-22 | 2012-08-22 | Servo electric cylinder |
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| CN (1) | CN102857021B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300787B (en) * | 2016-08-15 | 2019-02-01 | 江苏鑫涂机械有限公司 | A kind of multi-section servo electric cylinder |
| CN110311529A (en) * | 2019-06-12 | 2019-10-08 | 上海大学 | A kind of new type nut linear motor |
| CN113847301B (en) * | 2021-09-18 | 2024-02-02 | 湖北航天技术研究院总体设计所 | Oil cylinder capable of resisting lateral force |
| CN114552864B (en) * | 2022-02-28 | 2023-06-16 | 内蒙古工业大学 | Multi-shaft screw sliding table with anti-blocking function |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251885A (en) * | 1998-10-21 | 2000-05-03 | 杨世祥 | Digitalized electric cylinder with inner guide unit |
| AU2003903927A0 (en) * | 2003-07-28 | 2003-08-14 | Pbr Australia Pty Ltd | Brake assembly and actuating mechanism |
| CN200980019Y (en) * | 2006-10-18 | 2007-11-21 | 重庆海通机械制造有限公司 | An electrically driven cylinder controlled and served by the straight movement of a piston rod |
| CN202957701U (en) * | 2012-08-22 | 2013-05-29 | 北京摩诘创新科技股份有限公司 | Servo electric cylinder |
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| CN102857021A (en) | 2013-01-02 |
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