CN204243999U - A kind of electric cylinder with buffer protection - Google Patents
A kind of electric cylinder with buffer protection Download PDFInfo
- Publication number
- CN204243999U CN204243999U CN201420567519.3U CN201420567519U CN204243999U CN 204243999 U CN204243999 U CN 204243999U CN 201420567519 U CN201420567519 U CN 201420567519U CN 204243999 U CN204243999 U CN 204243999U
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- CN
- China
- Prior art keywords
- cylinder barrel
- piston rod
- guide pad
- fixedly installed
- feed screw
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to motorized motions equipment technical field, be specifically related to a kind of electric cylinder with buffer protection, comprise the base with assembly cavity and the motor be arranged on base, cylinder barrel, be provided with by the screw mandrel of above-mentioned motor-driven rotation in cylinder barrel, and be in the feed screw nut coordinating transmission in cylinder barrel with wire rod thread, described feed screw nut is fixed with and can stretches out or shrink the piston rod in cylinder barrel, feed screw nut is fixedly installed flange, the lower end of described piston rod is fixedly installed on flange, described feed screw nut is fixed with guide pad, offer the gathering sill slided up and down for guide pad along bore axis direction in inner wall of cylinder, be respectively equipped with the elastic buffering mechanism coordinated with above-mentioned guide pad in the top and bottom of gathering sill, this elastic buffering mechanism comprises and is fixedly installed on elastic component on cylinder barrel and is fixedly installed on the contact block that elastic component coordinates with guide pad.The utility model can ensure piston rod displacement accuracy and can increase the service life.
Description
Technical field
The utility model relates to motorized motions equipment technical field, is specifically related to a kind of electric cylinder with buffer protection.
Background technology
Existing electric cylinder comprises the base with assembly cavity and the motor, the cylinder barrel that are arranged on base, be provided with by the screw mandrel of above-mentioned motor-driven rotation in cylinder barrel, and be in the feed screw nut coordinating transmission in cylinder barrel with wire rod thread, described feed screw nut is fixed with and can stretches out or shrink the piston rod in cylinder barrel; The rotating band movable wire stem nut of motor moves up and down along screw mandrel, and piston rod is fixedly connected with feed screw nut, so just, stretching out and shrinking of piston rod can be realized, but existing feed screw nut can rotate under abandoned state, the telescopic displacement precision of piston rod will be affected, affect the use of electric cylinder; Because motor drives the rotation of screw mandrel to have certain inertia, when rising the highest or decline extreme lower position on the piston rod, certain damage can be caused to feed screw nut, affect the useful life of electric cylinder.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of a kind of electric cylinder with buffer protection that piston rod displacement accuracy also can increase the service life that can ensure.
Realize the technical solution of the utility model as follows:
A kind of electric cylinder with buffer protection, comprise the base with assembly cavity and the motor be arranged on base, cylinder barrel, be provided with by the screw mandrel of above-mentioned motor-driven rotation in cylinder barrel, and be in the feed screw nut coordinating transmission in cylinder barrel with wire rod thread, described feed screw nut is fixed with and can stretches out or shrink the piston rod in cylinder barrel, described feed screw nut is fixedly installed flange, the lower end of described piston rod is fixedly installed on flange, described feed screw nut is fixed with guide pad, offer the gathering sill slided up and down for guide pad along bore axis direction in inner wall of cylinder, be respectively equipped with the elastic buffering mechanism coordinated with above-mentioned guide pad in the top and bottom of gathering sill, this elastic buffering mechanism comprises and is fixedly installed on elastic component on cylinder barrel and is fixedly installed on the contact block that elastic component coordinates with guide pad.
Have employed technique scheme, guide pad is fixed with at flange outer peripheral face, offer the gathering sill slided for guide pad along bore axis direction in inner wall of cylinder, when driven by motor screw mandrel rotates, the rotation of screw mandrel can drive feed screw nut, flange moves up and down along screw mandrel direction, and the guide pad on flange can move in gathering sill, and be fixed on feed screw nut due to piston rod, can effectively prevent when screw mandrel rotates like this, drive the rotation of piston rod, the telescopic displacement precision of piston rod is ensured with this, and when feed screw nut rises to extreme higher position or extreme lower position, the guide pad be fixed on feed screw nut can contact with contact block, and cushioning effect can be played due to the setting of elastic component, solve the damage caused because of motor inertia, the useful life of electric cylinder is extended with this.
Further, the bottom of described cylinder barrel is provided with bearing, this bearing holder (housing, cover) is located on screw mandrel, the outer shroud of bearing is fixed with multiple rotating shaft, each rotating shaft is provided with the roller around axis of rotation, the outer peripheral face of multiple roller forms the circular space of spacing screw mandrel, and the lower end of screw mandrel is rotated in this circular space.Such screw mandrel can rotate in circular space, prevents rocking in screw mandrel rotation process, avoids the flexible precision caused because of rocking of screw mandrel in piston rod telescopic process to reduce.
Further, described piston rod is hollow structure, is fixed with multiple stiffener arranged along piston rod axis direction at the inwall of piston rod.By the intensity arranging enhancing piston rod of stiffener.
Accompanying drawing explanation
Fig. 1 is structure cutaway view of the present utility model;
Fig. 2 is the structural representation of cylinder barrel in the utility model;
Fig. 3 is A place enlarged drawing in Fig. 1;
Fig. 4 be in the utility model roller and screw mandrel coordinate schematic diagram;
Fig. 5 is the structural representation of T-nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As Fig. 1, 2, 3, 4, a kind of electric cylinder with buffer protection, comprise the base 2 with assembly cavity 1 and the motor 3 be arranged on base, cylinder barrel 4, be provided with by the screw mandrel 5 of above-mentioned motor-driven rotation in cylinder barrel, and be in the feed screw nut 6 coordinating transmission in cylinder barrel with wire rod thread, feed screw nut is fixed with and can stretches out or shrink the piston rod 7 in cylinder barrel, feed screw nut is fixedly installed flange 8, the lower end of piston rod is fixedly installed on flange, feed screw nut is fixed with guide pad 9, offer the gathering sill 10 slided up and down for guide pad along bore axis direction in inner wall of cylinder, be respectively equipped with the elastic buffering mechanism coordinated with above-mentioned guide pad in the top and bottom of gathering sill, this elastic buffering mechanism comprises and is fixedly installed on elastic component on cylinder barrel 11 and is fixedly installed on the contact block 12 that elastic component coordinates with guide pad.In concrete enforcement, elastic component is spring, one end of this spring is fixedly installed in the blind hole 13 on cylinder barrel, and contact block is stroke contact-making switch, when guide pad contacts with contact block, contact block just can send the signal of telecommunication to the controller controlling machine operation, and controller just can control motor stalling or upset, and this sets as required.
The bottom of cylinder barrel is provided with bearing 14, this bearing holder (housing, cover) is located on screw mandrel, the outer shroud 15 of bearing is fixed with four rotating shafts 16, each rotating shaft is provided with the roller 17 around axis of rotation, the mating surface of screw mandrel and roller does not arrange screw thread, the outer peripheral face of multiple roller forms the circular space 18 of spacing screw mandrel, and the lower end of screw mandrel is rotated in this circular space.Piston rod is hollow structure, is fixed with multiple stiffener 19 arranged along piston rod axis direction at the inwall of piston rod.
In assembly cavity 1, be provided with the transmission mechanism for transmitting motor power, it comprises the driving gear 20 being fixed on motor output shaft, and is fixed on the driven gear 21 of screw mandrel lower end, is in transmission connection between driving gear and driven gear by cogged drive belt 22; In concrete enforcement, electric machine casing is fixedly installed installed surface 23, base offers the adjustment hole 24 of strip, electric machine casing is locked on base by clamping screw 25 through installed surface, adjustment hole, the right position of motor can be regulated like this, this situation is convenient under relaxed state appears in cogged drive belt, by the elasticity adjustment regulating the position of motor to realize cogged drive belt, can ensure that cogged drive belt is in proper states with this.
Wherein, participate in Fig. 2,5, have two faces to leave magnetic approach switch standard cell 26 two in axial four faces of cylinder barrel right, facilitate Fast Installation and the adjustment of electric cylinder proximity switch; A face is left two T-nut standard cell 27, and there is the T-nut 29 of threaded mounting holes 28, by coordinating of T-nut and T-nut standard cell, the connectors such as displacement transducer simply can be fixedly mounted on cylinder barrel, tighten in assembling process that it can independently be located easily and lock.
Claims (3)
1. one kind has the electric cylinder of buffer protection, comprise the base with assembly cavity and the motor be arranged on base, cylinder barrel, be provided with by the screw mandrel of above-mentioned motor-driven rotation in cylinder barrel, and be in the feed screw nut coordinating transmission in cylinder barrel with wire rod thread, described feed screw nut is fixed with and can stretches out or shrink the piston rod in cylinder barrel, it is characterized in that, described feed screw nut is fixedly installed flange, the lower end of described piston rod is fixedly installed on flange, described feed screw nut is fixed with guide pad, offer the gathering sill slided up and down for guide pad along bore axis direction in inner wall of cylinder, be respectively equipped with the elastic buffering mechanism coordinated with above-mentioned guide pad in the top and bottom of gathering sill, this elastic buffering mechanism comprises and is fixedly installed on elastic component on cylinder barrel and is fixedly installed on the contact block that elastic component coordinates with guide pad.
2. a kind of electric cylinder with buffer protection according to claim 1; it is characterized in that; the bottom of described cylinder barrel is provided with bearing; this bearing holder (housing, cover) is located on screw mandrel; the outer shroud of bearing is fixed with multiple rotating shaft; each rotating shaft is provided with the roller around axis of rotation, and the outer peripheral face of multiple roller forms the circular space of spacing screw mandrel, and the lower end of screw mandrel is rotated in this circular space.
3. a kind of electric cylinder with buffer protection according to claim 1, is characterized in that, described piston rod is hollow structure, is fixed with multiple stiffener arranged along piston rod axis direction at the inwall of piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567519.3U CN204243999U (en) | 2014-09-29 | 2014-09-29 | A kind of electric cylinder with buffer protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567519.3U CN204243999U (en) | 2014-09-29 | 2014-09-29 | A kind of electric cylinder with buffer protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243999U true CN204243999U (en) | 2015-04-01 |
Family
ID=52773442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420567519.3U Expired - Fee Related CN204243999U (en) | 2014-09-29 | 2014-09-29 | A kind of electric cylinder with buffer protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588168A (en) * | 2017-10-09 | 2018-01-16 | 中国船舶重工集团公司第七0四研究所 | A kind of straight line actuation mechanism with cramped construction |
| CN113098190A (en) * | 2021-04-13 | 2021-07-09 | 西安索睿科技有限公司 | Single-wire rod driven multi-stage lifting electric cylinder and transmission method |
| CN114865837A (en) * | 2022-07-06 | 2022-08-05 | 南京德沃克自动化有限公司 | Intelligent control mechanism for electric transmission |
-
2014
- 2014-09-29 CN CN201420567519.3U patent/CN204243999U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588168A (en) * | 2017-10-09 | 2018-01-16 | 中国船舶重工集团公司第七0四研究所 | A kind of straight line actuation mechanism with cramped construction |
| CN107588168B (en) * | 2017-10-09 | 2020-09-04 | 中国船舶重工集团公司第七0四研究所 | Linear actuating mechanism with compact structure |
| CN113098190A (en) * | 2021-04-13 | 2021-07-09 | 西安索睿科技有限公司 | Single-wire rod driven multi-stage lifting electric cylinder and transmission method |
| CN114865837A (en) * | 2022-07-06 | 2022-08-05 | 南京德沃克自动化有限公司 | Intelligent control mechanism for electric transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20180929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |