CN202817981U - Electric pushrod - Google Patents
Electric pushrod Download PDFInfo
- Publication number
- CN202817981U CN202817981U CN 201220561649 CN201220561649U CN202817981U CN 202817981 U CN202817981 U CN 202817981U CN 201220561649 CN201220561649 CN 201220561649 CN 201220561649 U CN201220561649 U CN 201220561649U CN 202817981 U CN202817981 U CN 202817981U
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- China
- Prior art keywords
- outer tube
- electric pushrod
- magnetic induction
- sleeving
- groove
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Abstract
The utility model discloses an electric pushrod, comprising an electromotor, a speed reducer connected with the electromotor, an outer sleeving, an inner sleeving arranged inside the outer sleeving, a screw rod arranged inside the inner sleeving with one end connected with the speed reducer, a push nut arranged inside the outer sleeving and connected with the screw rod in a threaded matching manner, and a travel control switch device, wherein the screw rod can drive the push nut to move along the arranging direction of the outer sleeving during rotation, and the rear end of the inner sleeving is connected with the push nut; and the travel control switch device comprises a magnetic inductive switch arranged on the outer sleeving and a magnet which is arranged on the push nut and can trigger the magnetic inductive switch. The electric pushrod adopting the structure has advantages of simplified and reasonable structure and high positioning accuracy.
Description
Technical field
The utility model belongs to power-jdriven gear structure-design technique field, is specifically related to a kind of electric pushrod.
Background technology
Electric pushrod, English name Linear Actuator, claim again push-rod electric machine, electric cylinder and linear brake, it is a kind of power-jdriven gear that rotatablely moving of motor is changed into the straight reciprocating motion of push rod, can be used for using as carrying out machinery in the various simple or complicated technological processes, to realize far distance controlled, centralized control or automatically control.
Electric pushrod in the market adopts travel switch to carry out Stroke Control mostly, adopts travel switch to carry out the position and limits, and the shortcoming of existence is:
(1) slow movement of travel switch causes positioning accuracy poor; (2) structure is numerous and diverse.
The utility model content
For conventional electric push rod above shortcomings, the utility model aims to provide a kind of designs simplification rationally and the high electric pushrod of positioning accurate accuracy.
The technical scheme that realizes the utility model purpose is:
A kind of electric pushrod comprises motor, the deceleration device, the outer tube that link to each other with described motor, is arranged on inner sleeve in the described outer tube, is arranged in the described inner sleeve and screw mandrel that the one end links to each other with described deceleration device, is located in the described outer tube and with described screw mandrel and is promotion nut and the travel control switch device that threaded engagement is connected; Described screw mandrel can drive described promotion nut and move up along the outer tube setting party in rotation process, the rear end of described inner sleeve links to each other with described promotion nut;
Described travel control switch device comprises the magnetic induction switch that is arranged on the described outer tube and is arranged on the magnet that can trigger described magnetic induction switch on the described promotion nut.
In the technique scheme, described promotion nut outer wall is provided with the first groove; Described magnet is arranged in described the first groove.
In the technique scheme, the outer wall of described outer tube is provided with the second groove, and described magnetic induction switch is arranged in described the second groove.
Described magnet is embedded on the described promotion nut.
In the technique scheme, the outer wall of described outer tube is provided with groove, and described magnetic induction switch is arranged in the described groove.
In the technique scheme, described magnetic induction switch is tongue tube.
The utlity model has positive effect:
(1) the travel control switch device in the electric pushrod in the utility model comprises the magnetic induction switch that is arranged on the described outer tube and is arranged on the magnet that can trigger described magnetic induction switch on the described promotion nut.In said structure, adopt the higher magnetic induction switch of sensitivity to carry out the positioning accurate accuracy that Stroke Control can improve electric pushrod greatly, and than traditional travel switch, its structure is simplified more.
(2) the described promotion nut outer wall in the utility model is provided with the first groove; Described magnet is arranged in described the first groove, adopts said structure to be convenient to the fixed installation of magnet.
(3) outer wall of the described outer tube in the utility model is provided with the second groove, and described magnetic induction switch is arranged in described the second groove, adopts said structure to be convenient to the fixed installation of magnetic induction switch.
Description of drawings
Fig. 1 is a kind of structural representation of electric pushrod in the utility model;
Fig. 2 is a kind of forward view of outer tube in the utility model;
Reference numeral shown in the figure is:
The 1-motor; The 2-deceleration device; The 3-outer tube; 31-the second groove; The 4-inner sleeve; The 5-screw mandrel; 6-promotes nut; The 7-magnetic induction switch; 8-magnet.
Embodiment
A kind of embodiment to the electric pushrod in the utility model elaborates below in conjunction with Figure of description:
A kind of electric pushrod, as shown in Figure 1, it comprises motor 1, the deceleration device 2, the outer tube 3 that link to each other with described motor 1, is arranged on inner sleeve 4 in the described outer tube 3, is arranged in the described inner sleeve 4 and screw mandrel 5 that the one end links to each other with described deceleration device 2, is located in the described outer tube 3 and with described screw mandrel 5 and is promotion nut 6 and the travel control switch device that threaded engagement is connected; Described screw mandrel 5 can drive described promotion nut 6 and move up along outer tube 3 setting parties in rotation process, the rear end of described inner sleeve 4 links to each other with described promotion nut 6; Described travel control switch device comprises the magnetic induction switch 7 that is arranged on the described outer tube 3 and is arranged on the magnet 8 that can trigger described magnetic induction switch 7 on the described promotion nut 6.When practical operation, generally can respectively establish a magnetic induction switch 7 in top and the terminal of outer tube, section arranges several magnetic induction switches 7 therein.
For the ease of installing and fixing of magnet 8, described promotion nut 6 outer walls of present embodiment are provided with the first groove; Described magnet 8 is arranged in described the first groove.
Equally for the ease of the installing and fixing of magnetic induction switch 7, the outer wall of the described outer tube 3 of present embodiment is provided with the second groove 31, and described magnetic induction switch 7 is arranged in described the second groove 31, and the structure of this outer tube can be referring to Fig. 2.
In the present embodiment, described magnetic induction switch 7 adopts tongue tube.
Obviously, above-described embodiment of the present utility model only is for the utility model example clearly is described, and is not to be restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (4)
1. electric pushrod comprises motor (1), the deceleration device (2), the outer tube (3) that link to each other with described motor (1), is arranged on inner sleeve (4) in the described outer tube (3), is arranged in the described inner sleeve (4) and screw mandrel (5) that one end and described deceleration device (2) are continuous, is located in the described outer tube (3) and with described screw mandrel (5) and is promotion nut (6) and the travel control switch device that threaded engagement is connected; Described screw mandrel (5) can drive described promotion nut (6) and move up along outer tube (3) setting party in rotation process, the rear end of described inner sleeve (4) links to each other with described promotion nut (6);
It is characterized in that: described travel control switch device comprises the magnetic induction switch (7) that is arranged on the described outer tube (3) and is arranged on the magnet (8) that can trigger described magnetic induction switch (7) on the described promotion nut (6).
2. electric pushrod according to claim 1, it is characterized in that: described promotion nut (6) outer wall is provided with the first groove; Described magnet (8) is arranged in described the first groove.
3. electric pushrod according to claim 1, it is characterized in that: the outer wall of described outer tube (3) is provided with the second groove (31), and described magnetic induction switch (7) is arranged in described the second groove (31).
4. each described electric pushrod in 3 according to claim 1, it is characterized in that: described magnetic induction switch (7) is tongue tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561649 CN202817981U (en) | 2012-10-29 | 2012-10-29 | Electric pushrod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220561649 CN202817981U (en) | 2012-10-29 | 2012-10-29 | Electric pushrod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817981U true CN202817981U (en) | 2013-03-20 |
Family
ID=47876789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220561649 Expired - Fee Related CN202817981U (en) | 2012-10-29 | 2012-10-29 | Electric pushrod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817981U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505978A (en) * | 2014-04-29 | 2015-04-08 | 西北工业大学 | Linear actuator for nut-driving planetary roller screw assembly |
| CN104930148A (en) * | 2015-06-03 | 2015-09-23 | 兰宝胜 | Electric push rod device |
| 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 |
| CN110323891A (en) * | 2019-07-28 | 2019-10-11 | 无锡市宏霸机电设备有限公司 | Electric pushrod |
-
2012
- 2012-10-29 CN CN 201220561649 patent/CN202817981U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505978A (en) * | 2014-04-29 | 2015-04-08 | 西北工业大学 | Linear actuator for nut-driving planetary roller screw assembly |
| CN104930148A (en) * | 2015-06-03 | 2015-09-23 | 兰宝胜 | Electric push rod device |
| CN104930148B (en) * | 2015-06-03 | 2017-07-28 | 深圳市智康新能科技有限公司 | A kind of electric pushrod device |
| 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 |
| CN110323891A (en) * | 2019-07-28 | 2019-10-11 | 无锡市宏霸机电设备有限公司 | Electric pushrod |
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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: 20130320 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |