CN103225711B - position indication mechanism for valve electric device - Google Patents
position indication mechanism for valve electric device Download PDFInfo
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- CN103225711B CN103225711B CN201310174127.0A CN201310174127A CN103225711B CN 103225711 B CN103225711 B CN 103225711B CN 201310174127 A CN201310174127 A CN 201310174127A CN 103225711 B CN103225711 B CN 103225711B
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- upper plate
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- rotation
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Abstract
The invention provides a position indication mechanism for a valve electric device. The position indication mechanism comprises a lower plate, an upper plate, upright columns, an input shaft, a planet carrier, a fixed center gear, a rotary center gear series, a fixed planetary gear, a rotary planetary gear series and an indication device, wherein the indication device is arranged on the upper plate, the upper plate and the lower plate are supported and fixed by using the upright columns, the planet carrier, the fixed center gear, the rotary center gear series, the fixed planetary gear and the rotary planetary gear series are arranged between the upper plate and the lower plate, the fixed center gear is fixed on the upper plate, and the planet carrier comprises a large shaft, a small shaft, an upper swinging rod and a lower swinging rod. The indication mechanism has the advantages that the effects of simple structure, convenience in installation, adjustable transmission ratio and high output precision are achieved, change with the regulation of a transmission ratio is avoided and the like, and ensures that the transmission ratio is large in adjustable range and the transmission precision is high and constant by fully utilizing the characteristic that a WW type planet mechanism is large in transmission ratio change after the number of teeth is slightly regulated.
Description
Technical field
The present invention relates to a kind of position indicating device, relate in particular to a kind of electric device for valve position indicating device.
Background technique
Electric device for valve is the control apparatus of valve, for connecting or cut off the equipment of medium, and as water, steam, oil and gas, in running, need to understand valve opening position, to valve is accurately controlled.Different valves will be equipped with the Electric actuator of different drive ratios, for reducing manufacture cost, require same position indicating device to be arranged on the opening state that all can react valve on the Electric actuator of different drive ratios in several angle, angle requires to be less than 360o, be generally 340o, require electric device for valve position indicating device velocity ratio adjustable.Due to electric valve be in process automatic control system crucial actuating equipment, therefore require electric device for valve position indicating device to there is higher control and pointing accuracy.
Conventional electric device for valve position indicating device is stage-geared type at present, by regulating the position of main drive gear to meet the demand of different drive ratios, but along with the increase of velocity ratio, effect gear quantity also increases thereupon, cause accumulation idle stroke to increase gradually, had a strong impact on control and the pointing accuracy of Electric actuator to valve.The problems referred to above are the problems that should pay attention to and solve in the design and production process of electric device for valve.
Summary of the invention
The object of this invention is to provide the existing conventional electric device for valve position indicating device of a kind of electric device for valve position indicating device solution is stage-geared type, by regulating the position of main drive gear to meet the demand of different drive ratios, but along with the increase of velocity ratio, effect gear quantity also increases thereupon, cause accumulation idle stroke to increase gradually, had a strong impact on the control of Electric actuator to valve and the problem of pointing accuracy.
Technical solution of the present invention is:
A kind of electric device for valve position indicating device, comprises lower plate, upper plate, column, input shaft, planet carrier, fixed center gear, center of rotation gear series, fixing planetary pinion, rotate planetary gear series and indicating device, described upper plate is provided with indicating device, is supported and is fixed, described planet carrier between described upper plate and lower plate by column, fixed center gear, center of rotation gear series, fixing planetary pinion, rotate planetary gear series and be all located between described upper plate and lower plate, described fixed center gear is fixed on upper plate, and described planet carrier comprises macro-axis, little axle, upper pendulum bar and lower pendulum bar, described macro-axis is successively through upper plate, fixed center gear and center of rotation gear series, described macro-axis and upper plate, macro-axis and fixed center gear are and are rotationally connected, and described macro-axis is by long flat key connection of rotating central gear series, and the two ends of described little axle connect respectively upper pendulum bar and lower pendulum bar, and the middle part of described little axle is connected and fixed planetary pinion by short flat key successively, by any the rotation planetary pinion in the first screw connection of rotating planetary gear series, described lower pendulum bar connects input shaft, and described indicating device is connected to the end of macro-axis.
Further improve and be: described indicating device comprises disk, open indicator panel, close indicator panel and be used to indicate the pointer of valve opening position, and described pointer is connected to the end of macro-axis, described disk, open indicator panel and close indicator panel and be all located on upper plate.
Further improve and be: described in open indicator panel and close indicator panel and be all fixed on upper plate by the second screw, described pointer is fixed on macro-axis by the 3rd screw.
Further improve and be: described upper plate is provided with the tapped hole one and the tapped hole two that close indicator panel for fixing.Thereby capable of regulating closes the position of indicator panel, change and open indicator panel and close the angle between indicator panel mark.
Further improve and be: described upper plate is provided with the tapped hole two that tapped hole one that pointer angles of display is 150o～250o and pointer angles of display are 245o～340o.
Further improve and be: described center of rotation gear series comprises some center of rotation gears, described rotation planetary gear series comprise some rotation planetary pinions, described center of rotation gear and rotate that planetary quantity equates and respectively corresponding engagement one by one, arbitrary described center of rotation gear is all identical with the planetary number of teeth sum of corresponding rotation.
Further improve and be: described center of rotation gear and the planetary quantity of rotation are four.
Further improve and be: described lower plate is located in the control chamber of Electric actuator casing.
A kind of electric device for valve position indicating device of the present invention, has simple in structurely, easy for installation, and velocity ratio is adjustable, and output accuracy is high and not with advantages such as the adjustment of velocity ratio change.This kind of electric device for valve position indicating device, the rotation planetary pinion rotating in planetary gear series is connected with little axle by the first screw, with the common composition of fixing planetary pinion, fixed center gear and center of rotation gear one standard WW type planetary gear mechanism.Thereby by making fixed center gear and fixing planetary pinion keep the number of teeth constant, then by adjusting center of rotation gear and the corresponding rotation planetary pinion number of teeth, acquire different velocity ratios, take full advantage of WW type planetary mechanism and after slightly adjusting the number of teeth, there is the feature compared with big speed ratio variation, make that velocity ratio adjustable extent is large, transmission accuracy is high and constant.
This kind of electric device for valve position indicating device, described central gear series and rotate in planetary gear series arbitrary group corresponding center of rotation gear all equate with rotation planetary pinion number of teeth sum, ensure that the planetary center line of all rotations is on same axis, make complete machine structure simple, easy for installation.
In the time that electric device for valve is worked, rotational travel is delivered to lower pendulum bar by input shaft, and lower pendulum bar drives little axle to rotate around macro-axis, and lower pendulum bar forms planet carrier together with upper pendulum bar.As shown in Figure 4, rotate planetary pinion and be connected with little axle by the first screw, with the common composition of fixing planetary pinion, fixed center gear and center of rotation gear one standard WW type planetary gear mechanism.Center of rotation gear drives macro-axis to rotate by long flat key, shows by being arranged on the pointer on macro-axis and being fixed on opening indicator panel and closing indicator panel on upper plate the opening state that valve is current.By adjusting the position of the first screw on little axle, realize the WW type planetary gear mechanism of various combination, obtain different velocity ratios.In transmission process, the quantity of effect gear is always a fixed number, makes transmission accuracy high and constant.
The invention has the beneficial effects as follows: a kind of electric device for valve position indicating device of the present invention, the rotation planetary pinion rotating in planetary gear series is connected with little axle by the first screw, with the common composition of fixing planetary pinion, fixed center gear and center of rotation gear one standard WW type planetary gear mechanism.Thereby by making fixed center gear and fixing planetary pinion keep the number of teeth constant, then by adjusting center of rotation gear and the corresponding rotation planetary pinion number of teeth, acquire different velocity ratios, take full advantage of WW type planetary mechanism and after slightly adjusting the number of teeth, there is the feature compared with big speed ratio variation, make that velocity ratio adjustable extent is large, transmission accuracy is high and constant.Due to the different velocity ratios WW type epicyclic transmission mechanism of a corresponding standard all the time, position pointing accuracy can not change along with the increase of velocity ratio.In addition, have compared with big speed ratio variation because the number of teeth slightly adjusts rear WW Gear Planet Transmission, make that velocity ratio adjustable extent is large, transmission accuracy is high and constant.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the sectional view of the embodiment of the present invention;
Fig. 3 is the structural representation of planet carrier in the embodiment of the present invention;
Fig. 4 is a planetary transmission structure schematic diagram in the embodiment of the present invention;
Fig. 5 is the structural representation of central gear series and planetary gear series in the embodiment of the present invention;
Fig. 6 is the structural representation of indicating device in the embodiment of the present invention
Wherein: 1-lower plate, 2-upper plate, 3-column, 4-input shaft, 5-fixed center gear, 6-center of rotation gear series, 7-fixes planetary pinion, and 8-rotates planetary gear series, 9-macro-axis, the little axle of 10-, 11-upper pendulum bar, 12-lower pendulum bar, 13-pointer, 14-disk, 15-opens indicator panel, and 16-closes indicator panel, the long flat key of 17-, the short flat key of 18-, 19-the first screw, 20-the second screw, 21-the 3rd screw, 22-tapped hole one, 23-tapped hole two;
61-center of rotation gear one, 62-center of rotation gear two, 63-center of rotation gear three, 64-center of rotation gear four;
81-rotates planetary pinion one, and 82-rotates planetary pinion two, and 83-rotates planetary pinion three, and 84-rotates planetary pinion four.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the present embodiment provides a kind of electric device for valve position indicating device, comprises lower plate 1, upper plate 2, column 3, input shaft 4, planet carrier, fixed center gear 5, center of rotation gear series 6, fixing planetary pinion 7, rotate planetary gear series 8 and indicating device, described upper plate 2 is provided with indicating device, is supported and is fixed, described planet carrier between described upper plate 2 and lower plate 1 by column 3, fixed center gear 5, center of rotation gear series 6, fixing planetary pinion 7, rotate planetary gear series 8 and be all located between described upper plate 2 and lower plate 1, described fixed center gear 5 is fixed on upper plate 2, and as shown in Figure 3, described planet carrier comprises macro-axis 9, little axle 10, upper pendulum bar 11 and lower pendulum bar 12, described macro-axis 9 is successively through upper plate 2, fixed center gear 5 and center of rotation gear series 6, described macro-axis 9 and upper plate 2, macro-axis 9 is and is rotationally connected with fixed center gear 5, described macro-axis 9 is by long flat key 17 connection of rotating central gear series 6, the two ends of described little axle 10 connect respectively upper pendulum bar 11 and lower pendulum bar 12, and the middle part of described little axle 10 is connected and fixed planetary pinion 7 by short flat key 18 successively, by any the rotation planetary pinion in the first screw 19 connection of rotating planetary gear series 8, described lower pendulum bar 12 connects input shaft 4, and described indicating device is connected to the end of macro-axis 9.
As shown in Figure 6, described indicating device comprises disk 14, opens indicator panel 15, closes indicator panel 16 and is used to indicate the pointer 13 of valve opening position, described pointer 13 is connected to the end of macro-axis 9, described disk 14, open indicator panel 15 and close indicator panel 16 be all located on upper plate 2.The described indicator panel 15 of opening is all fixed on upper plate 2 by the second screw 20 with pass indicator panel 16, before the second screw 20 is tightened, can turn an angle around disk 14, for adjusting between the lane place of closing for valve opening.Described pointer 13 is fixed on macro-axis 9 by the 3rd screw 21, facilitates the initial position of regulating valve.Described upper plate 2 is provided with the tapped hole 1 and the tapped hole 2 23 that close indicator panel 16 for fixing.Thereby capable of regulating closes the position of indicator panel 16, change and open indicator panel 15 and close the angle between indicator panel 16 marks.Described upper plate 2 is provided with the tapped hole 2 23 that tapped hole 1 that pointer 13 angles of display are 150o～250o and pointer 13 angles of display are 245o～340o.As shown in Figure 5, described center of rotation gear series 6 comprises four center of rotation gears, be respectively center of rotation gear 1, center of rotation gear 2 62, center of rotation gear 3 63, center of rotation gear four, described rotation planetary gear series 8 comprise that four are rotated planetary pinion, be respectively and rotate planetary pinion 1, rotate planetary pinion 2 82, rotate planetary pinion 3 83, rotate planetary pinion 4 84, described center of rotation gear and the planetary quantity of rotation equate and corresponding engagement one by one respectively, arbitrary described center of rotation gear is all identical with the planetary number of teeth sum of corresponding rotation.Lower plate 1 is fixed on Electric actuator casing in control chamber by certain means of fixation.
In the time that electric device for valve is worked, rotational travel is delivered to lower pendulum bar 12 by input shaft 4, and lower pendulum bar 12 drives little axle 10 to rotate around macro-axis 9, and lower pendulum bar 12 forms planet carrier together with upper pendulum bar 11.As shown in Figure 4, rotate planetary pinion and be connected with little axle 10 by the first screw 19, with the common composition of fixing planetary pinion 7, fixed center gear 5 and center of rotation gear one standard WW type planetary gear mechanism.Center of rotation gear drives macro-axis 9 to rotate by long flat key 17, shows by being arranged on the pointer 13 on macro-axis 9 and being fixed on opening indicator panel 15 and closing indicator panel 16 on upper plate 2 opening state that valve is current.By adjusting the position of the first screw 19 on little axle 10, realize the WW type planetary gear mechanism of various combination, obtain different velocity ratios.In transmission process, the quantity of effect gear is always four, makes transmission accuracy high and constant.
Be provided with the tapped hole 1 and the tapped hole 2 23 that close indicator panel 16 for fixing at upper plate 2, require to select velocity ratio according to user, and calculate the angle that being opened to of valve closed, and then definite upper plate 2 which tapped hole are for the fixing indicator panel 16 that closes.Be illustrated:
Z
5=60，Z
7=30，
Z
61=61，Z
62=62，Z
63=64，Z
64=69，
Z
81=29，Z
82=28，Z
83=26，Z
84=21，
When being arranged on, the first screw 19 rotates on planetary pinion four velocity ratio i=2.6;
When being arranged on, the first screw 19 rotates on planetary pinion three velocity ratio i=5.3;
When being arranged on, the first screw 19 rotates on planetary pinion two velocity ratio i=10.3;
When being arranged on, the first screw 19 rotates on planetary pinion one velocity ratio i=20.3.
This kind of electric device for valve position indicating device, can regulate velocity ratio with the ratio that approaches 2 times, meets the general application requirements of electric device for valve.
In the time that fixing the second screw 20 that closes indicator panel 16 is connected with the tapped hole 1 of upper plate 2, position indicating device can angles of display be 150o～250o, in the time being connected with the tapped hole 2 23 of upper plate 2, can angles of display be 245o～340o.
If valve needs 8 circles to open or close completely, select velocity ratio i=10.3, select the first screw 19 to be arranged on and to rotate on planetary pinion two, now on position indicating device, the angle of Push And Release requires as 279.6o, 2 23 pairs of tapped holes selecting upper plate 2 are closed to indicator panel 16 to be fixed, then after arriving closed position by operated valve, adjust the angle of closing indicator panel 16, finally tighten screw.
Claims (8)
1. an electric device for valve position indicating device, is characterized in that: comprise lower plate (1), upper plate (2), column (3), input shaft (4), planet carrier, fixed center gear (5), center of rotation gear series (6), fixing planetary pinion (7), rotate planetary gear series (8) and indicating device, described upper plate (2) is provided with indicating device, is supported and is fixed, described planet carrier between described upper plate (2) and lower plate (1) by column (3), fixed center gear (5), center of rotation gear series (6), fixing planetary pinion (7), rotate planetary gear series (8) and be all located between described upper plate (2) and lower plate (1), it is upper that described fixed center gear (5) is fixed on upper plate (2), and described planet carrier comprises macro-axis (9), little axle (10), upper pendulum bar (11) and lower pendulum bar (12), described macro-axis (9) is successively through upper plate (2), fixed center gear (5) and center of rotation gear series (6), described macro-axis (9) and upper plate (2), macro-axis (9) is and is rotationally connected with fixed center gear (5), described macro-axis (9) is by long flat key (17) connection of rotating central gear series (6), the two ends of described little axle (10) connect respectively upper pendulum bar (11) and lower pendulum bar (12), and the middle part of described little axle (10) is connected and fixed planetary pinion (7) by short flat key (18) successively, by any the rotation planetary pinion in the first screw (19) connection of rotating planetary gear series (8), described lower pendulum bar (12) connects input shaft (4), and described indicating device is connected to the end of macro-axis (9).
2. electric device for valve position indicating device as claimed in claim 1, it is characterized in that: described indicating device comprises disk (14), opens indicator panel (15), closes indicator panel (16) and is used to indicate the pointer (13) of valve opening position, described pointer (13) is connected to the end of macro-axis (9), described disk (14), open indicator panel (15) and close indicator panel (16) be all located on upper plate (2).
3. electric device for valve position indicating device as claimed in claim 2, it is characterized in that: described in open indicator panel (15) and close indicator panel (16) all by the second screw (20) be fixed on upper plate (2) go up, described pointer (13) is fixed on macro-axis (9) by the 3rd screw (21).
4. electric device for valve position indicating device as claimed in claim 1, is characterized in that: described upper plate (2) is provided with the tapped hole one (22) and the tapped hole two (23) that close indicator panel (16) for fixing.
5. electric device for valve position indicating device as claimed in claim 4, is characterized in that: described upper plate (2) is provided with the tapped hole two (23) that tapped hole one (22) that pointer (13) angles of display is 150o～250o and pointer (13) angles of display are 245o～340o.
6. the electric device for valve position indicating device as described in claim 1-5 any one, it is characterized in that: described center of rotation gear series (6) comprises some center of rotation gears, described rotation planetary gear series (8) comprise some rotation planetary pinions, described center of rotation gear and rotate that planetary quantity equates and respectively corresponding engagement one by one, arbitrary described center of rotation gear is all identical with the planetary number of teeth sum of corresponding rotation.
7. electric device for valve position indicating device as claimed in claim 6, is characterized in that: described center of rotation gear and the planetary quantity of rotation are four.
8. the electric device for valve position indicating device as described in claim 1-5 any one, is characterized in that: described lower plate (1) is located in the control chamber of Electric actuator casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174127.0A CN103225711B (en) | 2013-05-13 | 2013-05-13 | position indication mechanism for valve electric device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174127.0A CN103225711B (en) | 2013-05-13 | 2013-05-13 | position indication mechanism for valve electric device |
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| CN103225711A CN103225711A (en) | 2013-07-31 |
| CN103225711B true CN103225711B (en) | 2014-10-22 |
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| CN201310174127.0A Expired - Fee Related CN103225711B (en) | 2013-05-13 | 2013-05-13 | position indication mechanism for valve electric device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104976415A (en) * | 2015-05-24 | 2015-10-14 | 杨小平 | Movable indicating device for indicating turn-on or turn-off direction of liquefied gas bottle valve |
| CN106248065B (en) * | 2016-09-19 | 2018-10-02 | 北京机械设备研究所 | A kind of method and system of time vehicle launch after effect period and range measurement |
| CN109505104A (en) * | 2018-11-29 | 2019-03-22 | 程章华 | A kind of automatic clothes hanger of rotatable swing arm of air dry bar angle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101788079B (en) * | 2010-03-09 | 2012-08-29 | 广东联塑科技实业有限公司 | Method for controlling opening of rotating switch of temperature control valve |
| JP2012122582A (en) * | 2010-12-10 | 2012-06-28 | Azbil Corp | Planetary gear mechanism and actuator for valve |
| CN202392247U (en) * | 2011-12-28 | 2012-08-22 | 谭仲禧 | Driving device of butterfly valve |
| CN202510810U (en) * | 2012-03-14 | 2012-10-31 | 温州执控科技有限公司 | Novel electric actuator |
| CN203248808U (en) * | 2013-05-13 | 2013-10-23 | 中国能建集团装备有限公司南京技术中心 | Position indication mechanism used for power-driven valve device |
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Granted publication date: 20141022 Termination date: 20190513 |