CN203278531U - Control limit device of electronic push rod - Google Patents
Control limit device of electronic push rod Download PDFInfo
- Publication number
- CN203278531U CN203278531U CN 201320241725 CN201320241725U CN203278531U CN 203278531 U CN203278531 U CN 203278531U CN 201320241725 CN201320241725 CN 201320241725 CN 201320241725 U CN201320241725 U CN 201320241725U CN 203278531 U CN203278531 U CN 203278531U
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- CN
- China
- Prior art keywords
- telescoping
- push rod
- trigger switch
- screw mandrel
- casing
- 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 the field of electronic push rod technologies, particularly to a control limit device of an electronic push rod. The control limit device comprises a casing. The casing is provided with a motor and a push rod telescoping mechanism; the push rod telescoping mechanism comprises a screw, a telescoping pipe and a connecting pipe; the screw and the telescoping pipe are successively sleeved in the connecting pipe; the telescoping pipe is provided with a trigger switch performing synchronous axial displacement; the trigger switch can perform radial rotation on the telescoping pipe; the inner side wall of the connecting pipe is provided with an axial track groove; the two ends of the track groove are provide with two travel switches; and the trigger switch cooperates with the two travel switches in the track groove. The provided control limit device has a sound structure. Besides, a switch shift fork and a connecting nut are axially fixed and radially rotate for cooperation so that cooperation failure caused by rotation displacement of the telescoping pipe and the connecting pipe can be prevented, and the switch shift fork always reciprocates in the track groove and triggers the travel switches, thus the travel control is more stable and reliable and the operation of the motor is more reliable.
Description
Technical field
The utility model relates to the electric pushrod technical field, particularly a kind of control stopping means of electric pushrod.
Background technology
Electric pushrod 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 various simple or complicated technological processes, to realize far distance controlled, centralized control or automatically to control.Electric pushrod is comprised of drive motors, reduction gearing, screw rod, nut, guide pin bushing, push rod, slide, spring, shell and turbine, fine motion control switch etc.Motor drives a pair of feed screw nut after gear reduction.The motion that is in line of the rotation motion of motor, utilize motor forward/backward rotation to complete the push rod action.
On electric pushrod, operated by rotary motion has protection mechanism, and protection mechanism comprises circuit protection and stroke protection two classes.Be equipped with the stroke protection switch on general electric pushrod, by coordinating between the travel switch in telescoping tube and the trigger on movable push bar, the Stability Analysis of Structures of restraint push rod stroke distances and then protection telescoping mechanism.Present electric pushrod travel switch and trigger generally are fixed on telescoping tube and movable push bar, do not have rotation displacement between telescoping tube and movable push bar, carry out all the time point-to-point mobile the triggering to guarantee trigger between travel switch.But also there is certain problem in this structure setting, electric pushrod during due to fault movable push bar and transmission mechanism the locking situation can appear, movable push bar can produce relative rotation with telescoping tube, and then cause the damage of trigger, this is a kind of indirectly unnecessary damage, therefore is necessary present travel switch structure is improved to improve its performance.
The utility model content
The purpose of this utility model is for the defective of prior art and deficiency, and a kind of control stopping means of a kind of electric pushrod rational in infrastructure, easy to use is provided.
For achieving the above object, the utility model is by the following technical solutions:
the control stopping means of a kind of electric pushrod described in the utility model, comprise casing, casing is provided with motor and push rod telescoping mechanism, motor drives the push rod telescoping mechanism by transmission mechanism and realizes the linear reciprocation action, described push rod telescoping mechanism comprises screw mandrel, telescoping tube and tube connector, screw mandrel, telescoping tube is sheathed in tube connector successively, telescoping tube is provided with synchronous axially movable trigger switch, but trigger switch is radial rotating on telescoping tube, the madial wall of tube connector is provided with axial rail groove, the two ends of rail groove are provided with two travel switches, two travel switches in trigger switch and rail groove coordinate.
Further, described telescoping tube is provided with the attaching nut who coordinates transmission with screw mandrel, and attaching nut and trigger switch are connected.
Further, have the location notch of annular on described attaching nut's external diameter, trigger switch comprises the centring ring of opening, and the external diameter of centring ring is provided with the switch shift fork, and centring ring is socketed in location notch, and the switch shift fork is located between two interior travel switches of rail groove.
Further, be provided with the spigot nut that coordinates interlock with screw mandrel in described attaching nut.
Further, described tube connector is fixedly connected with casing, is arranged with rotating location plug screw on screw mandrel, and the location plug screw is fixedly connected with casing, and screw mandrel is connected with motor-driven by transmission mechanism.
The utility model beneficial effect is: the utility model is rational in infrastructure, the switch shift fork coordinates with attaching nut's axial restraint and radial rotating, avoid telescoping tube and tube connector to rotate displacement and caused coordinating inefficacy, and then make the switch shift fork move back and forth and trigger all the time travel switch in rail groove, Stroke Control is more reliable and more stable, and the operation of motor is more reliable.
Description of drawings
Fig. 1 is blast structural representation of the present utility model;
Fig. 2 is push rod telescoping mechanism structural representation of the present utility model.
In figure:
10, casing; 20, screw mandrel; 21, location plug screw; 30, telescoping tube;
31, attaching nut; 32, location notch; 33, centring ring; 34, switch shift fork;
36, spigot nut; 40, tube connector; 41, rail groove; 70, motor.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
The control stopping means of a kind of electric pushrod described in the utility model, comprise casing 10, casing 10 is provided with motor 70 and push rod telescoping mechanism, motor 70 drives the push rod telescoping mechanism by transmission mechanism and realizes the linear reciprocation action, described push rod telescoping mechanism comprises screw mandrel 20, telescoping tube 30 and tube connector 40, and screw mandrel 20, telescoping tube 30 are sheathed in tube connector 40 successively; Screw mandrel 20 drives rotation by motor 70 and transmission mechanism, and then the positive and negative rotation of screw mandrel 20 drives the reciprocating motion that telescoping tube 30 is done straight line.
Described telescoping tube 30 is provided with synchronous axially movable trigger switch; the madial wall of tube connector 40 is provided with axial rail groove 41; the two ends of rail groove 41 are provided with two travel switches that coordinate with trigger switch; travel switch is connected with motor with peripheral control unit and is connected; when telescoping tube 30 moves back and forth to an end of tube connector 40; synchronization-moving trigger switch is conflicted and is pushed one of them travel switch of rail groove 41 thereupon; travel switch sends motor 70 stall signals, and then the trouble free service stroke of protection push rod telescoping mechanism.
But described trigger switch is radial rotating on telescoping tube 30, and then rotates when skew between telescoping tube 30 and tube connector 40, and trigger switch can be in rail groove 41 effective ranges all the time, and the coordinating of maintenance and travel switch.
Described telescoping tube 30 is provided with the attaching nut 31 who coordinates interlock with screw mandrel 20, attaching nut 31 connects and synchronizes with trigger switch and moves axially, but trigger switch is radial rotating on attaching nut 31, and then rotate between attaching nut 31 and tube connector 40 when being offset, trigger switch can be in rail groove 41 effective ranges all the time, and the coordinating of maintenance and travel switch.
Have the location notch 32 of annular on described attaching nut's 31 external diameters, trigger switch comprises the centring ring 33 of opening, the centring ring 33 of opening makes assembling more convenient, the external diameter of centring ring 33 is provided with switch shift fork 34, centring ring 33 is socketed in location notch 32,32 pairs of centring rings of location notch 33 carry out axial location, and centring ring 33 is moved axially with attaching nut 31, but and centring ring 33 radial rotary in location notch 32; Switch shift fork 34 is located between two interior travel switches of rail groove 41, moves and then trigger the travel switch at two ends along rail groove 41 when switch shift fork 34 moves with attaching nut 31.
Be provided with the spigot nut 36 that coordinates interlock with screw mandrel 20 in attaching nut 31, spigot nut 36 can improve the quality of fit of attaching nut 31 and screw mandrel 20, reduces running clearance; Be arranged with rotating location plug screw 21 on screw mandrel 20, location plug screw 21 is fixedly connected with casing 10, casing 10 and tube connector 40 form the motionless support body of one, screw mandrel 20 is in the interior rotation of tube connector 40 and by the axial restraint of plug screw 21 maintenances in location with casing 10, and then drive and drive telescoping tube 30 by transmission mechanism by motor 70, realize the reciprocating motion of tube connector 40 interior axial straight lines.
The above is only better embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (5)
1. the control stopping means of an electric pushrod, comprise casing (10), casing (10) is provided with motor (70) and push rod telescoping mechanism, motor (70) drives the push rod telescoping mechanism by transmission mechanism and realizes the linear reciprocation action, described push rod telescoping mechanism comprises screw mandrel (20), telescoping tube (30) and tube connector (40), screw mandrel (20), telescoping tube (30) is sheathed in tube connector (40) successively, it is characterized in that: telescoping tube (30) is provided with synchronous axially movable trigger switch, trigger switch at telescoping tube (30) but upper radial rotating, the madial wall of tube connector (40) is provided with axial rail groove (41), the two ends of rail groove (41) are provided with two travel switches, two travel switches in trigger switch and rail groove (41) coordinate.
2. the control stopping means of electric pushrod according to claim 1, it is characterized in that: described telescoping tube (30) is provided with the attaching nut (31) who coordinates transmission with screw mandrel (20), and attaching nut (31) is connected with trigger switch.
3. the control stopping means of a kind of electric pushrod according to claim 2, it is characterized in that: the location notch (32) that has annular on described attaching nut (31) external diameter, trigger switch comprises the centring ring (33) of opening, the external diameter of centring ring (33) is provided with switch shift fork (34), centring ring (33) is socketed in location notch (32), and switch shift fork (34) is located between two interior travel switches of rail groove (41).
4. the control stopping means of a kind of electric pushrod according to claim 2, is characterized in that: be provided with the spigot nut (36) that coordinates interlock with screw mandrel (20) in described attaching nut (31).
5. the control stopping means of a kind of electric pushrod according to claim 1, it is characterized in that: described tube connector (40) is fixedly connected with casing (10), be arranged with rotating location plug screw (21) on screw mandrel (20), location plug screw (21) is fixedly connected with casing (10), and screw mandrel (20) is in transmission connection by transmission mechanism and motor (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320241725 CN203278531U (en) | 2013-05-06 | 2013-05-06 | Control limit device of electronic push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320241725 CN203278531U (en) | 2013-05-06 | 2013-05-06 | Control limit device of electronic push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278531U true CN203278531U (en) | 2013-11-06 |
Family
ID=49508857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320241725 Expired - Fee Related CN203278531U (en) | 2013-05-06 | 2013-05-06 | Control limit device of electronic push rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203278531U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270750A (en) * | 2015-04-27 | 2017-01-04 | 安徽省华夏机床制造有限公司 | A kind of plate shearing machine back material stopping automatic lifting method |
| WO2017133098A1 (en) * | 2016-02-02 | 2017-08-10 | 炼马机电(深圳)有限公司 | Driver |
| CN109510429A (en) * | 2018-10-27 | 2019-03-22 | 浙江捷昌线性驱动科技股份有限公司 | A kind of linear actuators |
| CN109814035A (en) * | 2017-11-17 | 2019-05-28 | 国网河南省电力公司新密市供电公司 | A kind of electric expansion rod-type measuring battery tool |
| CN110130764A (en) * | 2019-06-19 | 2019-08-16 | 广东东箭汽车科技股份有限公司 | A kind of electric tail gate balancing pole, electric tail gate balanced structure and electric tail gate |
-
2013
- 2013-05-06 CN CN 201320241725 patent/CN203278531U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270750A (en) * | 2015-04-27 | 2017-01-04 | 安徽省华夏机床制造有限公司 | A kind of plate shearing machine back material stopping automatic lifting method |
| WO2017133098A1 (en) * | 2016-02-02 | 2017-08-10 | 炼马机电(深圳)有限公司 | Driver |
| US10498192B2 (en) | 2016-02-02 | 2019-12-03 | Limoss(Shenzhen) Co., Ltd. | Actuator |
| CN109814035A (en) * | 2017-11-17 | 2019-05-28 | 国网河南省电力公司新密市供电公司 | A kind of electric expansion rod-type measuring battery tool |
| CN109510429A (en) * | 2018-10-27 | 2019-03-22 | 浙江捷昌线性驱动科技股份有限公司 | A kind of linear actuators |
| CN109510429B (en) * | 2018-10-27 | 2024-04-09 | 浙江捷昌线性驱动科技股份有限公司 | Linear actuator |
| CN110130764A (en) * | 2019-06-19 | 2019-08-16 | 广东东箭汽车科技股份有限公司 | A kind of electric tail gate balancing pole, electric tail gate balanced structure and electric tail gate |
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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: 20131106 Termination date: 20170506 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |