CN103929012B - A kind of orthoscopic electric pushrod with microswitch stop - Google Patents
A kind of orthoscopic electric pushrod with microswitch stop Download PDFInfo
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- CN103929012B CN103929012B CN201310689341.XA CN201310689341A CN103929012B CN 103929012 B CN103929012 B CN 103929012B CN 201310689341 A CN201310689341 A CN 201310689341A CN 103929012 B CN103929012 B CN 103929012B
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- microswitch
- electric pushrod
- guide pipe
- reduction box
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Abstract
The invention discloses a kind of orthoscopic electric pushrod with microswitch stop, described orthoscopic electric pushrod includes motor sleeve pipe, drive motor, planetary reduction box, adapter sleeve, guide pipe, telescoping tube and microswitch stop, motor sleeve pipe is built-in with the drive motor and planetary reduction box combined, adapter sleeve connects motor sleeve pipe and guide pipe, planetary reduction box is connected with adapter sleeve, telescoping tube is assembled in guide pipe, the drive lead screw and nut that connect planetary reduction box output shaft is had in guide pipe, nut is connected with telescoping tube, drive lead screw is positioned at telescoping tube, the internal one end near planetary reduction box of guide pipe is provided with microswitch stop.The orthoscopic electric pushrod of the present invention provides the structure of a kind of volume compact, easy-to-install microswitch stop, solves microswitch stop and is difficult to a built-in difficult problem.
Description
Technical field
The present invention relates to electric pushrod field, particularly relate to a kind of orthoscopic electric pushrod with microswitch stop.
Background technology
Electric pushrod, English name LinearActuator, also known as push-rod electric machine, electric cylinder and linear actuators.Electric pushrod is a kind of reciprocating power-jdriven gear that the rotary motion of motor is changed into push rod, including orthoscopic electric pushrod, vertical electric push rod and run-in index electric pushrod, can use as execution machinery in various simple or complicated technological processes, to realize distant control, centralized Control or to automatically control.Electric pushrod also can be divided into trapezoidal screw formula, Ball screw type, planetary ball screw-type and planetary roller screw by leading screw form, also can be divided into DC motor type (12/24/36V), alternating current generator formula (220/380V), step motor type and servo electric machine type etc. by motor type.
In order to the motion repeatedly of electric pushrod is carried out spacing, it is generally adopted microswitch structure and realizes the restriction of the movement travel to electric pushrod in electronic mode.For rectilinear or run-in index electric pushrod; owing to volume own when structural design and installing space are relatively larger; therefore the form of built-in microswitch stop is mostly adopted; but traditional orthoscopic electric pushrod is smaller due to volume; stop adopts microswitch embedding structure to be relatively difficult to assembling and enter, be therefore mostly push rod tail end install current overload protection circuit or in peripheral control unit the mode of built-in overcurrent protection circuit spacing to realize.
But; stall when overcurrent protection circuit needs motor to extreme position; overload protecting circuit is further according to motor overload current limit; provide instruction by controller and make motor stalling; the design of this conditional electronic formula construction of switch is very high to the component of machine material of electric pushrod and the life requirements of intensity; ubiquity can make motor shortening in service life; mechanical transmissioning piece particularly transmission nut is the defect such as impaired easily; simultaneously; although overcurrent protection circuit is ripe and by commonly used technology, but there is also high cost and safety issue.
Accordingly, it would be desirable to a kind of novel orthoscopic electric pushrod structure, it is possible in currently limited push rod inner space, built-in microswitch stop limits with the movement travel to push rod such that it is able to saves and controls cost, can reduce again technical difficulty.
Summary of the invention
For Stroke Control device life-span of existing orthoscopic electric pushrod is low, cost is high and has the problem of potential safety hazard, the invention provides a kind of novel orthoscopic electric pushrod with microswitch stop, internal structure by appropriate design orthoscopic electric pushrod, microswitch stop is built in orthoscopic electric pushrod be possibly realized, improve cost performance and the security performance of orthoscopic electric pushrod, widen the application market of orthoscopic electric pushrod.
To achieve these goals, the invention provides a kind of orthoscopic electric pushrod with microswitch stop, described orthoscopic electric pushrod includes motor sleeve pipe, drive motor, planetary reduction box, adapter sleeve, guide pipe, telescoping tube and microswitch stop, motor sleeve pipe is built-in with the drive motor and planetary reduction box combined, adapter sleeve connects motor sleeve pipe and guide pipe, planetary reduction box is connected with adapter sleeve, telescoping tube is assembled in guide pipe, the drive lead screw and nut that connect planetary reduction box output shaft is had in guide pipe, nut is connected with telescoping tube, drive lead screw is positioned at telescoping tube, the internal one end near planetary reduction box of guide pipe is provided with microswitch stop.
Alternatively, microswitch stop is fixed on drive lead screw, and microswitch stop also includes wiring board assembly, and described wiring board assembly includes the first fixing plate and the second fixing plate of fastening mutually；Microswitch stop also includes upper and lower position limited inching switch, described upper and lower position limited inching switch includes upper limit microswitch and lower limit microswitch, it is separately fixed on the first fixing plate and the second fixing plate, upper and lower position limited inching switch is by fetching, with being electrically connected of wiring board assembly, the operating controlling drive motor, to control the stroke that expansion link runs, wherein, motor sleeve pipe is down direction relative to the direction of guide pipe.
Alternatively, guide pipe inwall is provided with draw-in groove, and draw-in groove is embedded with the flat pull bar pulling upper limit microswitch handle, and flat pull bar is provided with the boss towards drive lead screw, and upper limit microswitch place is provided with the compression spring of effect flat pull bar；When nut comes downwards to lower limit microswitch position, nut lower surface presses the handle of lower limit microswitch, and lower limit microswitch closes, and telescoping tube is descending limited and out of service；When nut goes upward to the position of the boss of flat pull bar, nut upper surface drives flat pull bar to move, and pulls upper limit microswitch handle, and upper limit microswitch closes, and telescoping tube is up limited and out of service；When drive motor commutates, nut again reverse descending time, compression spring effect flat pull bar moves down and makes upper limit microswitch to reset, and orthoscopic electric pushrod continues reciprocal operation.
Alternatively, planetary reduction box uses screw to be connected with adapter sleeve, and motor cannula end has afterbody pull head, hexagon ring is adopted to connect drive lead screw in the output shaft of planetary reduction box, drive lead screw is trapezoidal drive lead screw, and there is anterior pull head telescoping tube front end, and guide pipe is connected by screw thread with motor sleeve pipe.
Due to the fact that and have employed technique scheme, thus having the advantage that the orthoscopic electric pushrod with microswitch stop of the present invention, in Stroke Control, and 2 positions of range generally all only need to be controlled at 0 based on orthoscopic electric pushrod, this Stroke Control characteristic is more suitable for microswitch stop and carries out spacing situation, internal structure by appropriate design orthoscopic electric pushrod, microswitch stop is successfully built in orthoscopic electric pushrod, while saving cost for producer, convenient for users to use, decrease taking up room and applying difficulty of orthoscopic electric pushrod.
Accompanying drawing explanation
Fig. 1 is the external structure schematic diagram of a kind of orthoscopic electric pushrod with microswitch stop of the present invention；
Fig. 2 is the internal structure schematic diagram of a kind of orthoscopic electric pushrod with microswitch stop of the present invention；
Fig. 3 is the structural representation of the microswitch stop of a kind of orthoscopic electric pushrod with microswitch stop of the present invention；
Fig. 4 is the Stroke Control guiding schematic diagram of the microswitch stop of a kind of orthoscopic electric pushrod with microswitch stop of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
First, refer to the external structure schematic diagram that Fig. 1, Fig. 1 are a kind of orthoscopic electric pushrod with microswitch stop of the present invention, externally, the main body of described orthoscopic electric pushrod is made up of motor sleeve pipe, adapter sleeve and guide pipe, and adapter sleeve connects motor sleeve pipe and guide pipe.
nullThen，Refer to Fig. 2，Fig. 2 is the internal structure schematic diagram of a kind of orthoscopic electric pushrod with microswitch stop of the present invention，From inside，Described orthoscopic electric pushrod includes motor sleeve pipe 19、Drive motor 1、Planetary reduction box 2、Adapter sleeve 20、Guide pipe 14、Telescoping tube 15 and microswitch stop，Motor sleeve pipe 19 is built-in with the drive motor 1 and planetary reduction box 2 combined，Adapter sleeve 20 connects motor sleeve pipe 19 and guide pipe 14，Planetary reduction box 2 is connected with adapter sleeve 20，Telescoping tube 15 is assembled in guide pipe 14，The drive lead screw 13 and nut 12 that connect planetary reduction box 2 output shaft is had in guide pipe 14，Nut 12 is connected with telescoping tube 15，Drive lead screw 13 is positioned at telescoping tube 15，The internal one end near planetary reduction box 2 of guide pipe 14 is provided with microswitch stop.
Wherein, planetary reduction box 2 uses screw to be connected with adapter sleeve 20, motor sleeve pipe 19 tail end has afterbody pull head 18, hexagon ring is adopted to connect drive lead screw 13 in the output shaft of planetary reduction box 2, drive lead screw 13 is trapezoidal drive lead screw, there is anterior pull head 17 telescoping tube 15 front end, and guide pipe 14 is connected by screw thread with motor sleeve pipe 19.
Subsequently, refer to Fig. 3, Fig. 3 is the structural representation of the microswitch stop of a kind of orthoscopic electric pushrod with microswitch stop of the present invention, microswitch stop is positioned at orthoscopic electric pushrod inside and is fixed on drive lead screw 13, microswitch stop also includes wiring board assembly 9, and described wiring board assembly 9 includes the first fixing plate 8 and the second fixing plate 7 of fastening mutually；Microswitch stop also includes upper and lower position limited inching switch, described upper and lower position limited inching switch includes upper limit microswitch 5 and lower limit microswitch 10, it is separately fixed on the first fixing plate 8 and the second fixing plate 7, upper and lower position limited inching switch is by fetching, with being electrically connected of wiring board assembly 9, the operating controlling drive motor 1, to control the stroke that expansion link 15 runs, wherein, motor sleeve pipe 19 is down direction relative to the direction of guide pipe 14.
Finally, refer to Fig. 4, Fig. 4 is the Stroke Control guiding schematic diagram of the microswitch stop of a kind of orthoscopic electric pushrod with microswitch stop of the present invention, guide pipe 14 inwall is provided with draw-in groove, draw-in groove is embedded with the flat pull bar 11 pulling upper limit microswitch 5 handle, being provided with the boss towards drive lead screw 13 on flat pull bar 11, upper limit microswitch 5 place is provided with the compression spring 6 of effect flat pull bar 11；When nut 12 comes downwards to lower limit microswitch 10 position, nut 12 lower surface presses the handle of lower limit microswitch 10, and lower limit microswitch 10 electrically closes, and telescoping tube 15 is descending limited and out of service；When nut 12 goes upward to the position of the boss of flat pull bar 11, nut 12 upper surface drives flat pull bar 11 to move, and pulls upper limit microswitch 5 handle, and upper limit microswitch 5 electrically closes, and telescoping tube 15 is up limited and out of service；When drive motor 1 commutates, nut 12 again reverse descending time, compression spring 6 acts on flat pull bar 11 and moves down and make upper limit microswitch 5 to reset, and orthoscopic electric pushrod continues reciprocal operation.
It addition, electric pushrod is a kind of novel electric operator, the novel actuator of one that electric pushrod is mainly made up of mechanisms such as motor, push rod and control devices, it is possible to achieve distant control, centralized Control.The operation principle of electric pushrod is, motor is after gear slows down, drive a pair feed screw nut, the rotation motion of motor is in line motion, motor forward/backward rotation is utilized to complete push rod action, as can be completed the compound actions such as rotation, shake by mechanisms such as various levers, rocking bar or connecting rods, by changing lever arm of force length, it is possible to increase or strengthen stroke.Electric pushrod makes back and forth movement in certain limit stroke, and general electric pushrod standard stroke is 100,150,200,250,300,350 or 400mm, also dependent on different application condition, special stroke requires that design is customized.Electric pushrod can design the electric pushrod of different thrust according to different application load, its maximum thrust general is up to 6000N, no-load running speed is 4mm～35mm/s, electric pushrod is with 24V/12V direct current permanent magnet motor for power source, the convert rotational motion of motor for moving back and forth, promote one group of linkage to complete the switch operatings such as air door, valve, gate, baffle plate.Adopt electric pushrod not only can reduce the compressed air source unit needed for employing pneumatic actuator and auxiliary equipment as actuator, it is possible to reduce the weight of actuator.Pneumatic actuator is required for certain air pressure in whole control running, although can adopting the amplifier etc. that consumption is little, but accumulate over a long period, air consumption is still huge.Adopting electric pushrod actuator, when changing control aperture, it is necessary to power supply, just can no longer power when reaching required aperture, therefore from energy-conservation, electric pushrod actuator has obvious power saving advantages than pneumatic actuator.The keying of the mechanisms such as the air door of the departments such as electric power, chemical industry, metallurgy, mine, light industry, traffic, boats and ships, valve, gate, material handling, flow-control etc. it are widely used in suitable in remote operation.Now replaced the automaton of mechanism's hands, hydraulic valve, reduction gearing mechanism by increasing department with him.
It addition, assembly refers to the entirety that a series of product forms, it it is the general name of the parts system realizing a specific function.General name, is also the meaning of aggregation, for instance, the driving-shaft assembly on automobile, refer to the set of various power transmission shaft correlated parts, it is possible to realize power transmission.Therefore, wiring board assembly refers to the set of the relevant components and parts of various wiring board, is that by the aggregation of electrically control.
Those skilled in the art will recognize that; above-mentioned detailed description of the invention is illustrative of; it is to enable those skilled in the art to be better understood from this patent content; should not be understood as the restriction to this patent protection domain; as long as any equivalent change made according to the disclosed spirit of this patent or modification, each fall within this patent protection domain.
Claims (2)
1. the orthoscopic electric pushrod with microswitch stop, it is characterized in that, described orthoscopic electric pushrod includes motor sleeve pipe, drive motor, planetary reduction box, adapter sleeve, guide pipe, telescoping tube and microswitch stop, described motor sleeve pipe is built-in with the described drive motor and described planetary reduction box combined, described adapter sleeve connects described motor sleeve pipe and described guide pipe, described planetary reduction box is connected with described adapter sleeve, described telescoping tube is assembled in described guide pipe, the drive lead screw and nut that connect described planetary reduction box output shaft is had in described guide pipe, described nut is connected with described telescoping tube, described drive lead screw is positioned at described telescoping tube, the internal one end near described planetary reduction box of described guide pipe is provided with described microswitch stop；
Described microswitch stop is fixed on described drive lead screw, and described microswitch stop also includes: wiring board assembly, including the fasten mutually first fixing plate and the second fixing plate；
Upper and lower position limited inching switch, including upper limit microswitch and lower limit microswitch, it is separately fixed on the described first fixing plate and the described second fixing plate, described upper and lower position limited inching switch is by fetching, with being electrically connected of described wiring board assembly, the operating controlling described drive motor, to control the stroke that described expansion link runs, wherein, described motor sleeve pipe is down direction relative to the direction of described guide pipe；
Described guide pipe inwall is provided with draw-in groove, described draw-in groove is embedded with the flat pull bar pulling described upper limit microswitch handle, being provided with the boss towards described drive lead screw on described flat pull bar, described upper limit microswitch place is provided with the compression spring of effect flat pull bar；
When described nut comes downwards to described lower limit microswitch position, described nut lower surface presses the handle of described lower limit microswitch, and described lower limit microswitch closes, and described telescoping tube is descending limited and out of service；
When described nut goes upward to the position of the boss of flat pull bar, described nut upper surface drives flat pull bar to move, and pulls described upper limit microswitch handle, and described upper limit microswitch closes, and described telescoping tube is up limited and out of service；
When described drive motor commutates, described nut again reverse descending time, described compression spring effect flat pull bar moves down and makes described upper limit microswitch to reset, and described orthoscopic electric pushrod continues reciprocal operation.
2. orthoscopic electric pushrod according to claim 1, it is characterised in that:
Described planetary reduction box uses screw to be connected with described adapter sleeve, described motor cannula end has afterbody pull head, hexagon ring is adopted to connect drive lead screw in the output shaft of described planetary reduction box, drive lead screw is trapezoidal drive lead screw, there is anterior pull head described telescoping tube front end, and described guide pipe is connected by screw thread with described motor sleeve pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310689341.XA CN103929012B (en) | 2013-12-16 | 2013-12-16 | A kind of orthoscopic electric pushrod with microswitch stop |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310689341.XA CN103929012B (en) | 2013-12-16 | 2013-12-16 | A kind of orthoscopic electric pushrod with microswitch stop |
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| CN103929012A CN103929012A (en) | 2014-07-16 |
| CN103929012B true CN103929012B (en) | 2016-07-06 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226875B (en) * | 2015-10-28 | 2017-09-26 | 温州市惠丰电器有限公司 | Intelligent telescopic bar |
| CN106050635B (en) * | 2016-08-16 | 2017-09-15 | 南京英达公路养护车制造有限公司 | A kind of manual variable pump control system |
| CN106236497A (en) * | 2016-09-06 | 2016-12-21 | 上海荣泰健康科技股份有限公司 | A kind of arm and the adjustable massage armchair of shoulder position width |
| CN106411034A (en) * | 2016-09-27 | 2017-02-15 | 上海舜拓电机有限公司 | Linear electric push rod capable of adjusting limitation positions |
| CN106877561A (en) * | 2017-03-01 | 2017-06-20 | 江苏国电铁塔有限公司 | Electric pushrod and its protection device and guard method |
| CN108775478A (en) * | 2018-08-16 | 2018-11-09 | 魏天舒 | Intelligent animation shoots vehicle |
| CN109573879B (en) * | 2018-12-28 | 2023-07-04 | 北京术锐机器人股份有限公司 | Trolley lifting mechanism for carrying operation tool |
| CN110149026B (en) * | 2019-06-05 | 2023-07-21 | 徐州天泓传动设备有限公司 | Stroke-adjustable electric push rod |
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| CN201821204U (en) * | 2010-09-12 | 2011-05-04 | 上海舜拓电机有限公司 | Linear motor-driven push rod |
| CN202100671U (en) * | 2011-06-17 | 2012-01-04 | 宁波迪麦格磁电科技有限公司 | Electric pushing rod |
| CN203608013U (en) * | 2013-12-16 | 2014-05-21 | 上海舜拓电机有限公司 | Linear-type linear actuator with micro switch stopper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001054255A (en) * | 1999-08-06 | 2001-02-23 | Namiki Precision Jewel Co Ltd | Linear-drive micro actuator |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201821204U (en) * | 2010-09-12 | 2011-05-04 | 上海舜拓电机有限公司 | Linear motor-driven push rod |
| CN202100671U (en) * | 2011-06-17 | 2012-01-04 | 宁波迪麦格磁电科技有限公司 | Electric pushing rod |
| CN203608013U (en) * | 2013-12-16 | 2014-05-21 | 上海舜拓电机有限公司 | Linear-type linear actuator with micro switch stopper |
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| CN103929012A (en) | 2014-07-16 |
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