CN2262636Y - Harmonic electric apparatus for valve - Google Patents

Abstract

The utility model discloses a harmonic electric apparatus for a valve, composed of a motor, a planet wheel, an output rigidity wheel, a fixed rigidity wheel, a cam, an output shaft, a flexible wheel, an angle gear wheel, an angle sensor, an electronic controller, an outer shell, a valve, etc. Adopting a harmonic drive structure which is composed of the output rigidity wheel, the flexible wheel, etc., the utility model achieves the purpose of opening or closing the valve. With high drive efficiency, energy saving and strong versatility, the utility model can be made into products with a plurality of specifications, and is suitable for the automatic control of various valves. The utility model has the advantages of small size, light weight, simple structure, material saving, low cost, reliable control performance, convenient installation and use, etc.

Description

Valve harmonic wave Electric actuator

The utility model relates to the valve harmonic wave Electric actuator that valve is controlled automatically in the pipeline, is specially adapted to the automatic control of valve in the pipelines such as oil, chemical industry, power station.

Present commercially available electric device for valve, the secondary that all adopts worm and gear and gear formation is to the three-step gear shift driving mechanism, the structure of this variable transmission mechanism and control section art designs are aging, the volume heaviness, at the bottom of the transmission efficiency, easily heating, the serious waste energy, and fitting operation is inconvenience very, and the cost height brings certain difficulty to user's use.

The purpose of this utility model is to avoid the deficiency in the above-mentioned background technology and valve harmonic wave Electric actuator that the harmonic driving structure of a kind of transmission efficiency height, highly versatile is provided, and it is little that the utility model also has a volume, in light weight, simple in structure, save material, cost price is cheap, install to adjust simple and easy, control operation reliable performance and characteristics such as easy to use.

The purpose of this utility model is achieved in that it comprises motor 1, connecting cap 2, planetray reducer 3, output is wheel 4 just, cam 5, output shaft 6, flexbile gear 7, fixing wheel 8 just, angle gear 9, shell 10, angle transducer 11, electronic controller 12, valve 13, outer cover 14, wherein the gear on 1 in the motor connects with 3 engagements of left end planetray reducer, cam 5 usefulness screws and right-hand member planetray reducer 3 are fixedly connected, flexbile gear 7 is sleeved on the cam 5 outer gardens by the bearing drive fit, output just wheel 4 gears connects with the engagement of right half flexbile gear 7 gear sets, the fixing inner gear housing of wheel 8 just is contained in engagement connection on left half flexbile gear 7 gears, output shaft 6 left ends are inserted into output and just connect with dowel fixes in wheel 4 endoporus, fixing wheel just 8 outer gardens are screwed in shell 10 left end shells, connect with the installation of output shaft 6 drive fits by bearing in the shell 10 right-hand member shells, output shaft 6 right-hand members are fixedly connected by the axle of key pin and valve 13, connecting cap 2 left parts are screwed on motor 1 shell, planetray reducer 3 is installed in the lid, the right part is fixedly connected with screw and shell 10 left end housings, angle gear 9 is screwed and is sleeved on the output shaft 6, output is wheel 4 just, cam 5, output shaft 6, flexbile gear 7, fixing wheel 8 just, angle gear 9 is installed in the housing of shell 10, angle gear 9 cogs to mesh with 11 of angle transducers and connects, angle transducer 11 is screwed on shell 10, angle transducer 11 control ends, the power supply input control end of motor 1 is connected with each corresponding controling end of electronic controller 12 by lead, and outer cover 14 is screwed and is sleeved on shell 10 outsides.

Planetray reducer 3 of the present utility model is made of 2 to 10 sheet fine module gears, wherein meshes between 2 to 10 sheet fine module gears and the gear to connect.

The utility model is compared background technique following advantage:

1. the harmonic driving structure of just taking turns 4, reaching formations such as flexbile gear 7 is exported in the utility model employing, so the transmission efficiency height, energy saving, and highly versatile can be made into many specification series product, is applicable to the automatic control of multiple valve.

2. the utility model adopts Technology of Harmonic Wave Transmission to make deceleration control, so volume little (be original product 1/2 to 1/3), in light weight (be original product 1/3 to 1/5), simple in structure, save material (, can save material 1/3 to 2/3), so cost price is cheap with same specification original product ratio.

3. the utility model open and close of adopting angle transducer 11, electronic controller 12 to make valve 13 are controlled automatically, so control operation reliable performance, but both unit control, but multimachine remote centralized control again, control valve 13 rotation angles also can directly show by angle transducer 11, electronic controller 12.

4. it is simple and easy, easy to use that adjustment is installed, and has the popularization use value.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the utility model mounting structure schematic representation.

With reference to Fig. 1, just form by wheel 4, cam 5, output shaft 6, flexbile gear 7, fixing just wheel 8, angle gear 9, shell 10, angle transducer 11, electronic controller 12, valve 13, outer cover 14 by motor 1, connecting cap 2, planetray reducer 3, output for the utility model.Wherein the gear on 1 in the motor connects with 3 engagements of left end planetray reducer, and cam 5 usefulness screws and right-hand member planetray reducer 3 are fixedly connected.The utility model planetray reducer 3 is made of 2 to 10 sheet fine module gears, meshes between gear and the gear to connect.Planetray reducer 3 its effects constitute harmonic driving, do first order transmission and slow down.Embodiment's planetray reducer 3 adopts 4 sheet fine module gear engagements to connect gearing down, and the size of the reduction speed ratio of 4 sheet fine module gears designs voluntarily according to the rotating speed of motor 1.Embodiment's motor 1 adopts commercially available three-phase small-power general-purpose machine to make, and the watt level of motor 1 designs according to the size of controlled valve 13, can adopt the commercially available general three phase power motor of 90W to 1100W to make among the utility model embodiment.

The utility model planetray reducer 3 is installed in the connecting cap 2, connecting cap 2 left parts are screwed on motor 1 shell, the right part connects with shell 10 left end housings with screw, embodiment's connecting cap 2 cylinder iron casting processing forms, and its outside dimension is 150 millimeters.

The utility model flexbile gear 7 is sleeved on the outer garden post of cam 5 protrusions by the bearing drive fit, embodiment's cam 5 is made into garden post terraced steps structure, cam 5 left end garden post terraced steps install by bearing and shell 10 projecting inward footpath drive fits connects, right-hand member garden post terraced steps connects with the inboard aperture drive fit of output shaft 6 by bearing, makes cam 5 be installed in that shell 10 is interior to rotate by the transmission of planetray reducer 3.Output just wheel 4 gears connects with the engagement of right half flexbile gear 7 gear sets, the fixing inner gear housing of wheel 8 just is contained in engagement connection on left half flexbile gear 7 gears, the rotation of cam 5 makes flexbile gear 7 rotate around the internal gear of fixing wheel 8 just, at this moment the rotation of flexbile gear 7 drives output wheel 4 rotations just, slows down in the second level that constitutes harmonic driving.Embodiment's output shaft 6 is made the garden columniation structure, left end is inserted into to export just to take turns in 4 endoporus and connects with dowel fixes, makes firm wheel 4 rotations of output drive output shafts 6 and rotates.Output shaft 6 right-hand members are installed in by the bearing drive fit in the right-hand member shell of shell 10, and fixing wheel just 8 outer gardens are screwed in shell 10 left end shells.Embodiment's cam 5, output shaft 6 all adopt commercially available rod iron material to process.Bearing all adopts commercially available general bearing.Output shaft 6 right-hand members are fixedly connected by the axle of key pin and valve 13, and embodiment's valve 13 adopts the commercially available butterfly valve that turn 90 degrees that revolves, and its valve closing when its output shaft 6 rotations 0 are spent, revolve valve open when turning 90 degrees.Embodiment's shell 10 adopts cast iron materials to be cast as the cylindrical outer casing structure, and the outside dimension of shell 10 is 150 millimeters, and output just wheel 4, cam 5, output shaft 6, flexbile gear 7, fixing just wheel 8, angle gear 9 are installed in barrel-type casing.Angle gear 9 is screwed and is sleeved on the output shaft 6, angle gear 9 cogs to mesh with 11 of angle transducers and connects, angle transducer 11 is screwed on shell 10, embodiment makes a call to a hole at shell 10 central enclosure places, making angle transducer 11 shaft extensions go into shell 10 gears interior and that install on axle connects with angle gear 9 engagements, drive rotations that cog of 11 of angle transducers when angle gear 9 rotates, output shaft 6 rotation angle signals of angle transducer 11 outputs are at this moment imported electronic controller 12.Angle transducer 11 control ends, the power supply input control end of motor 1 is connected with each corresponding controling end of electronic controller 12 by lead, electronic controller 12 reaches the unlatching of valve 13 by the work of control motor 1, close and open certain angle, when output shaft 6 rotations 0 degree throttle down 13, or revolve and turn 90 degrees Open valve 13, or rotate certain angle Open valve 13 certain angle, at this moment open by angle transducer 11 output valves 13, close, or rotarily open the angle information of certain angle, input electronic controller 12 reaches the working state of automatic control motor 1, embodiment's planetray reducer 3, output is wheel 4 just, flexbile gear 7, fixing wheel 8 just, angle gear 9 all adopts garden steel machining to form fine module gear, and the number of teeth of each gear designs and produces according to gear ratio or rotation angle.Embodiment's angle transducer 11, electronic controller 12 adopts general electronic circuit self-control to form, and general electronic controller 12 is installed in the operating room away from controlled valve 13 by lead, but to the control of valve 13 both unit, but multimachine remote centralized control again.The angular dimension that valve 13 is opened, closed is shown directly that by the display device of electronic controller 12 therefore operation control is simple and convenient.The utility model outer cover 14 is screwed and is sleeved on shell 10 outsides; cover motor 1, connecting cap 2, shell 10; reach the purpose of outside work protection, embodiment's outer cover 14 adopts commercially available sheet metal materials processing to become tubular construction, and its size gets final product slightly greatly than shell 10 diameters.

Claims (2)

1. valve harmonic wave Electric actuator, it comprises motor (1), connecting cap (2), shell (10), angle transducer (11), electronic controller (12), valve (13), outer cover (14), it is characterized in that it also comprises planetray reducer (3), output is wheel (4) just, cam (5), output shaft (6), flexbile gear (7), fixing wheel (8) just, angle gear (9), wherein the gear on motor (1) axle connects with left end planetray reducer (3) engagement, cam (5) is fixedly connected with screw and right-hand member planetray reducer (3), flexbile gear (7) is sleeved on the outer garden of cam (5) by the bearing drive fit, output just wheel (4) gear connects with the engagement of right half flexbile gear (7) gear set, the fixing inner gear housing of wheel (8) just is contained in engagement connection on left half flexbile gear (7) gear, output shaft (6) left end is inserted into output and just connects with dowel fixes in wheel (4) endoporus, fixing wheel just (8) outer garden is screwed in shell (10) left end shell, connect with the installation of output shaft (6) drive fit by bearing in shell (10) the right-hand member shell, output shaft (6) right-hand member is fixedly connected by the axle of key pin and valve (13), connecting cap (2) left part is screwed on motor (1) shell, planetray reducer (3) is installed in the lid, the right part is fixedly connected with screw and shell (10) left end housing, angle gear (9) is screwed and is sleeved on the output shaft (6), output is wheel (4) just, cam (5), output shaft (6), flexbile gear (7), fixing wheel (8) just, angle gear (9) is installed in the housing of shell (10), angle gear (9) cogs to mesh with angle transducer (11) axle and connects, angle transducer (11) is screwed on shell (10), angle transducer (11) control end, the power supply input control end of motor (1) is connected by lead each corresponding controling end with electronic controller (12), and outer cover (14) is screwed and is sleeved on shell (10) outside.

2. valve harmonic wave Electric actuator according to claim 1 is characterized in that planetray reducer (3) is made of 2 to 10 sheet fine module gears, wherein meshes between 2 to 10 sheet fine module gears and the gear to connect.