CN103411011B - A kind of Intelligent straight-stroke electric topworks - Google Patents
A kind of Intelligent straight-stroke electric topworks Download PDFInfo
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- CN103411011B CN103411011B CN201310295465.XA CN201310295465A CN103411011B CN 103411011 B CN103411011 B CN 103411011B CN 201310295465 A CN201310295465 A CN 201310295465A CN 103411011 B CN103411011 B CN 103411011B
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Abstract
The present invention specifically discloses a kind of Intelligent straight-stroke electric topworks, comprise body skin, main transmission mechanism, the automatic shifter of hand and Controlling System, the bottom of described body skin is provided with two columns, described Controlling System controls main transmission mechanism, and the output terminal of described main transmission mechanism connects a joint nut being connected with load; And it being fixed with strongback at the output terminal of main transmission mechanism, described strongback moves up and down along two columns under the driving of main transmission mechanism, is provided with the automatic shifter of hand in the side of main transmission mechanism. The straight line displacement that can realize electric operator exports intelligent control, has one-piece construction dexterity, an advantage such as thrust is big, efficiency height, precision height, noise are low, dependable performance.
Description
Technical field
The present invention specifically discloses a kind of Intelligent straight-stroke electric topworks.
Background technology
Electric operator is a very important field device in industrial process control system, and its energy is taken conveniently, installation and debugging are simple, obtains applying more and more widely at industrial sectors such as electric power, metallurgy, oil, chemical industry. Straight stroke electric actuating mechanism accepts the input signal of setter, and converts thereof into the straight line displacement proportional to input signal and remove the regulating mechanisms such as band movable valve, baffle plate, to realize automatic control. There are problems in current domestic straight stroke electric actuating mechanism, such as complex structure, failure rate height, noise is big, debugging is complicated, control accuracy is low. Insider generally thinks, the intelligent straight stroke electric actuating mechanism being badly in need of quality really up to the mark puts goods on the market.
Summary of the invention
In order to solve the shortcoming that prior art exists, the present invention specifically discloses a kind of Intelligent straight-stroke electric topworks.
The technical solution used in the present invention is as follows:
A kind of Intelligent straight-stroke electric topworks, comprise body skin, main transmission mechanism, the automatic shifter of hand and Controlling System, the bottom of described body skin is provided with two columns, described Controlling System controls main transmission mechanism, and the output terminal of described main transmission mechanism connects a load joint nut; And it being fixed with strongback at the output terminal of main transmission mechanism, described strongback moves up and down along two columns under the driving of main transmission mechanism, is provided with the automatic shifter of hand in the side of main transmission mechanism.
Described main transmission mechanism comprises a motor, described motor drives worm gear to rotate by slowing-down structure, described worm-gear driven leading screw rotates, nut on leading screw is connected with load joint nut, nut on leading screw drives the strongback being fixed thereon to move up and down, and load joint nut drives load movement.
Described body skin, comprises the upper housing and lower housing that cooperatively interact up and down, and upper housing adopts the square structure with gradient, lower housing and upper housing are sealed by O, and described upper housing and lower housing adopt die-cast aluminum alloy material, after oxide treatment, spray epoxy.
The automatic shifter of described hand, comprises the worm screw being meshed with worm gear, and described worm screw one end is connected with the pole being fixed on body skin by spring, and is provided with the limit switch controlling motor and cut-offfing on body skin, and limit switch coordinates with worm screw; The worm screw the other end connects a set of hand device, and is provided with two grooves on worm screw, and described groove matches with clutch handle, and described clutch handle is stuck in the groove of body skin, and with worm screw abutting end higher than the inwall bottom lower housing.
Having back-up ring on described worm screw, described back-up ring matches with the axle sleeve being located on worm screw, and described axle sleeve is stuck in body skin. Described hand device comprises a handwheel, and described handwheel is bolted on worm screw. Described handwheel is provided with handle, and described handle is flexibly connected with handwheel. Between described clutch handle and worm screw, clutch spring is installed. Described spring and pole be stuck in worm shaft to hole in. Described handwheel is by pad and is bolted on worm screw. Coordinated by sleeve sealing between described worm screw and body skin, between axle sleeve and housing, cross wringing fit.
Described topworks also comprises position detecting module, comprise connecting rod, rack-plate, gear and potentiometer, the vertical direction of described strongback is connected with a connecting rod parallel with output shaft, described connecting rod is provided with rack-plate, potentiometric gear coordinates described rack-plate upper rack with being equipped with, and the linear displacement signal after conversion is sent to Controlling System by described potentiometer.
Described topworks also comprises a spacing module, comprise two limit switches being arranged on support and two the projections realizations being arranged on rack-plate, two described limit switches coordinate with two projections, cut-offfing of described limit switch control motor power, described support installing in the side of rack-plate, and be fixed on be located in body skin in cover.
Described Intelligent straight-stroke electric topworks also comprises interior lid, is covered in body skin in described, and by worm gear, worm screw and manual shifter lid automatically, below, motor, retarding mechanism, gear, tooth bar, switchboard and support installing cover interior.
Described load joint nut, built with the compression disc spring ensureing load closing force, ensures the tight closing of load.
Two described root post one end are fixed on topworks's lower housing, one end connecting valve seat; And post stroke scale in described column side.
Described Controlling System comprises a circuit card, is provided with a controller and the power source circuit being connected with controller respectively, overload protection circuit, LED display circuit on described circuit card; And controller is also connected with potentiometer reaction circuit, motor by wire.
The useful effect of the present invention:
The straight line displacement that can realize electric operator exports intelligent control, has one-piece construction dexterity, an advantage such as thrust is big, efficiency height, precision height, noise are low, dependable performance.
Accompanying drawing explanation
The one-piece construction figure of Fig. 1 the present invention;
The structure iron of the automatic shifter of Fig. 2 hand;
The gear plate structural representation of Fig. 3 the present invention;
In figure: lid, 5 lower housings, 6 columns, 7 joint nuts, 8 strongbacks, 9 nuts, 10 leading screws, 11 bearings, 12 clutch handles, 12-1 clutch spring, 12-2 axle sleeve, 12-3 worm screw, 12-4 pole spring, 12-5 pole, 13 worm gears, 14 handwheels, 14-1 handle, 15 driving sleeves, 16 keys, 17 retarding mechanisms, 18 motors in 1 upper housing, 2 rack-plates, 2-1 tooth bar, 2-2 gear, 2-3 potentiometer, 2-4 projection, 2-5 limit switch, 3 connecting rods, 4.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
The present invention relates to a kind of Intelligent straight-stroke electric topworks, mainly comprise body skin, main transmission mechanism, the automatic shifter of hand, spacing module, position detecting module and Controlling System,
The body skin of Intelligent straight-stroke electric topworks, it is made up of upper housing 1 and lower housing 5, upper housing 1 adopts the square structure with certain gradient, is convenient to die casting, and lower housing 5 plays main support effect, unique design simplifies physical construction, adopting unique O sealing between housing, water proof and dust proof is good, and housing adopts die-cast aluminum alloy material, through oxide treatment, spray epoxy, integrate soundness, erosion resistance and portability.
The main transmission mechanism of Intelligent straight-stroke electric topworks, form primarily of motor 18, retarding mechanism 17, worm gear, leading screw 10 and nut 9, motor 18 is according to control overflow Driving Torque, it is delivered on leading screw 10 by retarding mechanism 17, worm gear 13, driving leading screw 10 to rotate, slowing-down structure 17 is connected by key 16 with worm gear 13, and worm gear 13 is coordinated by bearing 11 with leading screw 10, converting rotary motion is translational motion, torque is transformed to thrust by nut 9 by leading screw 10, drives stem movement. Nut 9 prevents the strongback 8 rotated with one, and strongback 8 is fixed on nut 9, follows it and moves up and down; Strongback 8 can also make position indicator, and stroke scale is posted in column 6 side, and strongback 8 is along in column 6 up and down motion process, it is possible to reads stroke size by corresponding scale instruction. Motor 18 adopts reversible electric machine, and built-in overheating protection device, can frequent movement. Main transmission structure is reasonable, dependable performance, output profit are steady, and noise is low, noise control is outstanding in like product, reaches quiet standard, it may be achieved the maximum high thrust reaching 30kN exports, and exceedes the domestic and international pivotal straight stroke electric actuating mechanism of existing non-multi. Compared to turning round straight stroke electric actuating mechanism, weight alleviates greatly, structure is simply many, and cost is also much lower, but function is suitable more.
The automatic shifter of the hand of Intelligent straight-stroke electric topworks, mainly comprise the worm screw 12-3, clutch handle 12, clutch spring 12-1, handwheel 14, handle 14-1, pole 12-5, pole spring 12-4 and the limit switch that are meshed with worm gear, described worm screw one end is connected with the pole 12-5 being fixed on body skin 1 by spring, and on body skin 1, it being provided with the limit switch controlling motor and cut-offfing, limit switch coordinates with worm screw 12-3; The worm screw 12-3 the other end connects a set of hand device, and on worm screw 12-3, it is provided with two grooves, described groove matches with clutch handle 12, and described clutch handle 12 is stuck in the groove of body skin 1, and with worm screw 12-3 abutting end higher than the inwall bottom lower housing 5.
Having back-up ring on worm screw 12-3, described back-up ring matches with the axle sleeve 12-2 being located on worm screw 12-3, and described axle sleeve 12-2 is stuck in body skin. Described hand device comprises a handwheel 14, and described handwheel 14 is bolted on worm screw 12-3. Described handwheel 14 is provided with handle 14-1, and described handle 14-1 is flexibly connected with handwheel 14. Between described clutch handle 12 and worm screw 12-3, clutch spring is installed. Described spring and pole 12-5 are stuck in the hole of worm screw 12-3 axis. Described handwheel 14 is by pad and is bolted on worm screw 12-3.It is sealed and matched by axle sleeve 12-2 between described worm screw 12-3 and body skin 1, between axle sleeve 12-2 and body skin 1, crosses wringing fit.
By the drawing of clutch handle 12, pine operation, under the effect being positioned at worm screw 12-3 internal post spring, worm gear 13 and worm screw 12-3 matching or disengagement, worm gear 13 correspondence disengages or touching limit switch, limit switch is connected with motor 18 power supply, corresponding disconnection or connection motor 18 power supply, thus realize Non-follow control and the switching of control automatically; Described worm gear 13 is provided with driving sleeve 15, and driving sleeve 15 connects slowing-down structure, it is achieved transmission; Worm gear 13 and driving sleeve 15 are bolted. It is sealed and matched by axle sleeve 12-2 between worm screw 12-3 and body skin 1, between axle sleeve 12-2 and body skin 1, crosses wringing fit.
Handle 14-1 on handwheel folds into when operation automatically, opens when manual operation, is convenient to manual operation, saves simultaneously and installs space. The manually automatically switching arrangement of clutch of the present invention, compared to structures all at present, has structure dexterity, good reliability, takes up space little, easy and simple to handle, and the especially interpolation of limit switch, has added double insurance for hand switches automatically.
The spacing module of Intelligent straight-stroke electric topworks; realize primarily of two the limit switch 2-5 being arranged on support and two the projection 2-4 being arranged on rack-plate; after upper and lower limit bit switch encounters upper and lower projection; by the limit information feed back of stroke to servoamplifier; determine valve switch limit position, play the effect of protection motor. This part-structure simplicity of design, reliable, cost is low.
The position detecting module of Intelligent straight-stroke electric topworks, primarily of connecting rod 3, rack-plate 2, gear 2-2 and potentiometer 2-3 forms, strongback 8 is connected with a connecting rod 3, connecting rod 3 is with output shaft synchronous action, rack-plate 2 upper rack 2-1 and the gear 2-2 cooperating that potentiometer 2-3 is housed, while gear 2-2 rotates, potentiometer 2-3 rotates, straight line displacive transformation becomes the angular travel of potentiometer 2-3, angular travel is expressed by resistance change, resistance change is changed into servoamplifier that electric current signal is supplied to Controlling System as comparing signal and valve position feedback exports through switchboard circuit correspondence.
Intelligent straight-stroke electric topworks also comprises interior lid 4, column 6, joint nut 7, and nut 9 is connected with valve rod by joint nut 7, and the up and down motion of nut 9 drives output shaft to move up and down. By lids such as worm gear 13, worm screw and manual shifters automatically below, motor, retarding mechanism, rack and pinion assembly, terminal stud, switchboard and support etc. are arranged on interior lid 4 interior lid 4. Joint nut, built with the compression disc spring ensureing valve closing force, can ensure the tight closing of valve. Two root post one end are fixed on topworks's lower housing, one end connecting valve seat.
Intelligent straight-stroke electric control system of actuating mechanism, comprises a circuit card, is provided with a controller and the power source circuit being connected with controller respectively, overload protection circuit, LED display circuit on described circuit card; And controller is also connected with potentiometer reaction circuit, motor by wire. The 4-20mA direct current linearly of input is converted to output shaft straight-line displacement amount, thus makes the staying at random location of the output shaft of topworks in maximum stroke; Straight-line displacement amount drives angular travel potentiometer by rack-and-pinion transmission, potentiometric resistance is changed into electric current signal as aperture signal feedback to controller, aperture signal and input signal form deviation signal, utilize PID control law that deviation between regulator signal and aperture signal is reduced, eliminate control part when deviation and make motor stop on this position.Controlling System adopts advanced hybrid integrated circuit, reliability height, band big screen LED, integrates control command, state display, fault alarm; Controlling System band overload protection unit, can three kinds of states of setting signal: self-locking, complete close and standard-sized sheet. Controller self can ensure under the prerequisite that performer work does not produce vibration, employing optimum sensitivity controls, do not need manually to adjust, thus be conducive to improving the accuracy of actuator position change with control signal change tracking, it is to increase the quality of whole control loop; If not needing such sensitivity, user, also by manually arranging, manually can arrange 30 grades of sensitivity, and every grade of variable quantity is 0.1%.
The straight line displacement that the present invention can realize electric operator exports intelligent control, has one-piece construction dexterity, an advantage such as thrust is big, efficiency height, precision height, noise are low, dependable performance.
Claims (8)
1. an Intelligent straight-stroke electric topworks, comprise body skin, main transmission mechanism, the automatic shifter of hand and Controlling System, the bottom of described body skin is provided with two columns, described Controlling System controls main transmission mechanism, the automatic shifter of hand it is provided with in the side of main transmission mechanism, it is characterised in that: the output terminal of described main transmission mechanism connects a load joint nut; And it being fixed with strongback at the output terminal of main transmission mechanism, described strongback moves up and down along two columns under the driving of main transmission mechanism; Described main transmission mechanism comprises a motor, described motor drives worm gear to rotate by slowing-down structure, described worm-gear driven leading screw rotates, nut on leading screw is connected with load joint nut, nut on leading screw drives the strongback being fixed thereon to move up and down, and load joint nut drives load movement; The automatic shifter of described hand, comprises the worm screw being meshed with worm gear, and described worm screw one end is connected with the pole being fixed on body skin by spring, and is provided with the limit switch controlling motor and cut-offfing on body skin, and limit switch coordinates with worm screw; The worm screw the other end connects a set of hand device, and is provided with two grooves on worm screw, and described groove matches with clutch handle, and described clutch handle is stuck in the groove of body skin, and with worm screw abutting end higher than the inwall bottom lower housing.
2. topworks as claimed in claim 1, it is characterized in that: described topworks also comprises position detecting module, comprise connecting rod, rack-plate, gear and potentiometer, the vertical direction of described strongback is connected with a connecting rod parallel with output shaft, described connecting rod is provided with rack-plate, potentiometric gear coordinates described rack-plate upper rack with being equipped with, and the linear displacement signal after conversion is sent to Controlling System by described potentiometer.
3. topworks as claimed in claim 1, it is characterized in that: described topworks also comprises a spacing module, comprise two limit switches being arranged on support and two the projections realizations being arranged on rack-plate, two described limit switches coordinate with two projections, cut-offfing of described limit switch control motor power, described support installing in the side of rack-plate, and be fixed on be located in body skin in cover.
4. topworks as claimed in claim 1, it is characterized in that: described body skin, comprise the upper housing and lower housing that cooperatively interact up and down, upper housing adopts the square structure with gradient, lower housing and upper housing are sealed by O, and described upper housing and lower housing adopt die-cast aluminum alloy material, after oxide treatment, spray epoxy.
5. topworks as claimed in claim 1, it is characterized in that: described topworks also comprises interior lid, it is covered in described in body skin, by worm gear, worm screw and manual shifter lid automatically, below, motor, retarding mechanism, gear, tooth bar, switchboard and support installing cover interior.
6. topworks as claimed in claim 1, it is characterised in that: described load joint nut is built with the compression disc spring ensureing valve closing force.
7. topworks as claimed in claim 1, it is characterised in that: two described column one end are fixed on topworks's lower housing, one end connecting valve seat, and stroke scale is posted in side on described column.
8. topworks as claimed in claim 1, it is characterised in that: described Controlling System comprises a circuit card, is provided with a controller and the power source circuit being connected with controller respectively, overload protection circuit, LED display circuit on described circuit card; And controller is also connected with potentiometer reaction circuit, motor by wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310295465.XA CN103411011B (en) | 2013-07-15 | 2013-07-15 | A kind of Intelligent straight-stroke electric topworks |
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| CN201310295465.XA CN103411011B (en) | 2013-07-15 | 2013-07-15 | A kind of Intelligent straight-stroke electric topworks |
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| CN103411011B true CN103411011B (en) | 2016-06-08 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104500824B (en) * | 2014-12-26 | 2016-12-07 | 沃尔达环境技术江苏股份有限公司 | A kind of intelligent valve executor |
| CN106502285B (en) * | 2015-09-07 | 2021-06-15 | 南京迈瑞生物医疗电子有限公司 | Electrodynamic apparatus and motion control method thereof |
| CN105909822B (en) * | 2016-06-22 | 2018-03-06 | 南京理工大学 | A kind of Jing Yin controllable electric pinch valve |
| CN107448666B (en) * | 2017-09-26 | 2023-05-23 | 无锡福斯拓科科技有限公司 | Manual reset structure for straight travel actuator |
| CN111427258B (en) * | 2020-03-03 | 2022-11-29 | 中国石油化工股份有限公司 | Multi-redundancy servo control fault safety type straight-stroke rapid cut-off actuating mechanism |
| CN114165733A (en) * | 2021-12-23 | 2022-03-11 | 南京拓耘达智慧科技有限公司 | Smart intelligent straight-stroke electric actuator |
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| CN1789770A (en) * | 2004-12-13 | 2006-06-21 | 韩国银河机械产业有限公司 | Electric/manual mode switching device for electric actuator for opening and closing valve |
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Effective date of registration: 20190926 Address after: Room 202, 2nd floor, 253 Center, Nanxinzhuang West Road, Jinan City, Shandong Province Patentee after: Jinan Huibang Automatic Instrument Co., Ltd. Address before: Ji'nan City Central Jiwei Road No. 106 of 250022 cities in Shandong Province Patentee before: University of Jinan |