CN102109397A - Dynamic detecting device of torque of electric actuating mechanism - Google Patents
Dynamic detecting device of torque of electric actuating mechanism Download PDFInfo
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- CN102109397A CN102109397A CN 201010589130 CN201010589130A CN102109397A CN 102109397 A CN102109397 A CN 102109397A CN 201010589130 CN201010589130 CN 201010589130 CN 201010589130 A CN201010589130 A CN 201010589130A CN 102109397 A CN102109397 A CN 102109397A
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Abstract
The invention provides a dynamic detecting device of the torque of an electric actuating mechanism. As the output torque of the electric actuating mechanism forms a linear relation by worm gearing and axial clearance distance of a worm. a ring-shaped rack is added on the worm of the electric actuating mechanism, and by a mode of meshing of the rack and a gear, a torque shaft is driven to rotate; the other end of the torque shaft is provided with a torque gear; by being meshed with the gear, the torque gear drives a potentiometer gear to rotate and further drives a potentiometer to rotate, so as to realize change of the worm from the axial clearance distance to the rotary angle on the potentiometer; and then electric signal variation on the potentiometer is converted into continuously-variable digital quantity to be input into a controller by an analog-to-digital conversion circuit, so as to lead the controller to carry out torque control and alarm display. Simultaneously, a butterfly-shaped spring is arranged at the tail end of the worm, the clearance space of the worm is provided, and the buffering force of the axial clearance of the worm is increased, so that the dynamic detecting device has a buffering action on torque with instantaneous and violent change.
Description
Technical field
The present invention relates to the moment of torsion device for dynamically detecting, the pick-up unit especially for the electric operator dynamic torque detects can be applicable to all kinds of electric operators, comprises electric operators such as adjustment type, switching mode, angle stroke and many revolutions.
Background technology
The torque protection excessively of electric operator is its crucial function.When electric operator in rotation process in case when load torque occurring and surpassing the torque setting value allow, should cut off the electricity supply immediately, stop the rotation of motor, also protect the purpose of topworks self to reach the protection valve.Therefore electric operator moment of torsion Real-time and Dynamic Detection is very necessary.
At present, the moment of torsion of electric operator detects and adopts the thrust shell fragment mostly.Act on thrust on the shell fragment in the electric operator rotation process and directly reacted the size of load torque.When load torque reached certain numerical value, the thrust of its generation was backed down the contact switch of control power lead, thereby cuts off the electricity supply, and stopped motor and rotated.Mainly there are three problems in the method for this fully mechanical: the one, and the life-span of mechanical part is shorter usually, breaks down easily after use a period of time; The 2nd, need torque protection as requested be worth to come the tightness of shell fragment is regulated, be difficult for accurately grasping, be easy to generate bigger error sometimes; The 3rd, can't realize the dynamic torque protection, can only play switch warning effect, can't monitor in real time change in torque.Therefore, the moment of torsion dynamic real-time monitor of electric operator has become a major issue of electric operator development.In recent years, also have to adopt and measure current of electric and magnetic flux, and carry out the moment of torsion dynamic real-time detection of electric operator by Calculation Method, but still there are some problems, the one, precision is not high, the sampled value of moment of torsion can only be divided into several grades and control, fully linearity test; The 2nd, motor is along with the growth of on-the-spot service time, and its performance is progressively descending, so parameter also changes the inevitable more and more out of true of the detection of moment of torsion thereupon.
Summary of the invention
In order to address the above problem, the purpose of this invention is to provide a kind of the have function that dynamic real-time detects moment of torsion, the output torque electric operator moment of torsion device for dynamically detecting of linear response electric operator in real time.
Technical scheme of the present invention is: a kind of electric operator moment of torsion device for dynamically detecting, it is characterized in that, this device is made of annular rack, worm gear, worm screw, torque axis, torque gear, potentiometer gear and potentiometer, wherein, described annular rack is installed on the described worm screw, described worm screw and the engagement of described worm gear, described worm screw is connected with described torque axis by the rack pinion engagement system, the other end of described torque axis is equipped with the torque gear, this gear is by gear potentiometer gearing mesh, and the axle of described potentiometer gear and potentiometer is fixed by jackscrew.
Further, this device also comprises butterfly spring, and described butterfly spring is connected with worm screw, for instantaneous huge change in torque buffer action is arranged.
Beneficial effect of the present invention is: owing to adopt technique scheme, the present invention has the function that dynamic real-time detects moment of torsion, the output torque electric operator moment of torsion detection of dynamic of linear response electric operator in real time, the moment of torsion that has improved electric operator greatly detects and controlling level, and reduced use cost, solved the difficult problem that existing electric operator is faced on moment of torsion detects.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention.
Among the figure:
1. motor 7. disk springs
2. motor gear 8. torque gears
3. worm screw 9. potentiometer gears
4. annular rack 10. potentiometers
5. worm gear 11. torque axis
6. worm screw
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Figure 1 shows that one-piece construction synoptic diagram of the present invention.As shown in Figure 1, a kind of electric operator moment of torsion device for dynamically detecting, this device is made of annular rack, torque axis, potentiometer gear and potentiometer.
Wherein, the motor tooth 2 of motor 1 and the gear on worm that is arranged on worm screw 6 one ends 3 engagements, wheel annular rack 4 is installed on the worm screw 6, the other end of worm screw 6 is connected with disk spring 7, worm screw 6 and worm gear 5 engagements, annular rack 4 is connected with an end of torque axis 11 by the rack pinion engagement system, and the other end of described torque axis is equipped with torque gear 8, torque gear 8 is fixed by jackscrew with the axle of potentiometer 10 with potentiometer gear 9 engagements, potentiometer gear 9.
Principle of work of the present invention is: because the output torque of electric operator is linear by the axial float distance of worm-drive and worm screw, therefore on the worm screw of electric operator, increase annular rack, mode by the rack pinion engagement, the drive torque axis rotates, the other end of torque axis is equipped with the torque gear, this gear passes through gearing mesh, drive the potentiometer gear, and then the drive potentiometer rotates, realize the variation of the axial float of worm screw apart from rotational angle to potentiometer, again with the change in electric on the potentiometer, be converted in the continually varying digital quantity input controller by analog to digital conversion circuit, provide controller to carry out moment of torsion control and alarm indication.At the end of worm screw butterfly spring is installed simultaneously, the play space of worm screw is provided, increase the cushion effect of worm screw axial float, the moment of torsion of acute variation has buffer action for moment.
The present invention is owing to adopted the torque signal with electric operator to be converted to the digital quantity electric signal by this device; realized the real time dynamic tracing of electric operator is detected; the user can judge the operation conditions of valve and electric operator according to the moment of torsion instantaneous value of feedback; and can between nominal torque 40%-100%, set the torque protection value; so just realized the versatility of electric operator; when changing on the different valves, electric operator can revise the torque protection value very easily; need not open electric operator adjustment thrust shell fragment and adjust the torque protection value, get final product and only need on controller, set.Greatly facilitate user's use like this.
In sum, be a kind of preferred embodiment of the present invention described in this instructions.All technician in the art all should be in claim protection domain of the present invention under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (2)
1. electric operator moment of torsion device for dynamically detecting, it is characterized in that, this device is by annular rack (4), worm gear, (5), worm screw (6), torque gear (8), torque axis (11), potentiometer gear (9) and potentiometer (10) constitute, wherein, described annular rack (4) is installed on the described worm screw (6), described worm screw (6) and described worm gear (5) engagement, described worm screw (6) is connected with described torque axis (11) by the rack pinion engagement system, the other end of described torque axis (11) is equipped with torque gear (8), described torque gear (8) and the described potentiometer gear teeth (9) engagement, described potentiometer gear (9) is fixed by jackscrew with the axle that potentiometer changes (10).
2. electric operator moment of torsion device for dynamically detecting according to claim 1 is characterized in that this device also comprises butterfly spring (7), and described butterfly spring (7) is connected with worm screw (6), for instantaneous huge change in torque buffer action is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010589130 CN102109397A (en) | 2010-12-15 | 2010-12-15 | Dynamic detecting device of torque of electric actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010589130 CN102109397A (en) | 2010-12-15 | 2010-12-15 | Dynamic detecting device of torque of electric actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
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| CN102109397A true CN102109397A (en) | 2011-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010589130 Pending CN102109397A (en) | 2010-12-15 | 2010-12-15 | Dynamic detecting device of torque of electric actuating mechanism |
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| CN (1) | CN102109397A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506577A (en) * | 2011-11-10 | 2012-06-20 | 中冶华天工程技术有限公司 | Measuring device for flexible transmission torque of sintering machine |
| CN104316239A (en) * | 2014-10-13 | 2015-01-28 | 深圳市一诺仪表设备有限公司 | Electric head torque testing system |
| CN104406730A (en) * | 2014-10-31 | 2015-03-11 | 朗胜电子科技江苏有限公司 | Torque sensor having pressing pull preventing device |
| WO2016062181A1 (en) * | 2014-10-22 | 2016-04-28 | 奇瑞汽车股份有限公司 | Method for testing jumpy variation in fitting friction coefficient between worm gear and worm of automobile steering system |
| CN106764032A (en) * | 2017-01-12 | 2017-05-31 | 温州力米托克智能科技有限公司 | A kind of electric device for valve with moment of torsion inductor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914049Y (en) * | 2006-05-22 | 2007-06-20 | 项美根 | Intelligentized torque control unit sleeve sensor of valve motor |
| CN200993260Y (en) * | 2006-12-12 | 2007-12-19 | 天津百利二通机械有限公司 | Valve electric device bearing base type tensile-pressing sensor torque control mechanism |
| CN201021907Y (en) * | 2006-11-10 | 2008-02-13 | 南京财经大学 | Torque measurement device for valve executor |
| CN201318974Y (en) * | 2008-12-18 | 2009-09-30 | 深圳市浚海仪表设备有限公司 | Force moment measuring device of electrical actuating mechanism |
-
2010
- 2010-12-15 CN CN 201010589130 patent/CN102109397A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2914049Y (en) * | 2006-05-22 | 2007-06-20 | 项美根 | Intelligentized torque control unit sleeve sensor of valve motor |
| CN201021907Y (en) * | 2006-11-10 | 2008-02-13 | 南京财经大学 | Torque measurement device for valve executor |
| CN200993260Y (en) * | 2006-12-12 | 2007-12-19 | 天津百利二通机械有限公司 | Valve electric device bearing base type tensile-pressing sensor torque control mechanism |
| CN201318974Y (en) * | 2008-12-18 | 2009-09-30 | 深圳市浚海仪表设备有限公司 | Force moment measuring device of electrical actuating mechanism |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506577A (en) * | 2011-11-10 | 2012-06-20 | 中冶华天工程技术有限公司 | Measuring device for flexible transmission torque of sintering machine |
| CN104316239A (en) * | 2014-10-13 | 2015-01-28 | 深圳市一诺仪表设备有限公司 | Electric head torque testing system |
| WO2016062181A1 (en) * | 2014-10-22 | 2016-04-28 | 奇瑞汽车股份有限公司 | Method for testing jumpy variation in fitting friction coefficient between worm gear and worm of automobile steering system |
| CN104406730A (en) * | 2014-10-31 | 2015-03-11 | 朗胜电子科技江苏有限公司 | Torque sensor having pressing pull preventing device |
| CN106764032A (en) * | 2017-01-12 | 2017-05-31 | 温州力米托克智能科技有限公司 | A kind of electric device for valve with moment of torsion inductor |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: TIANJIN AIKETE MEASURING + CONTROL TECHNOLOGY CO., Free format text: FORMER OWNER: TIANJIN AIKETE VALVE CONTROL EQUIPMENT CO., LTD. Effective date: 20110919 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 300240 DONGLI, TIANJIN TO: 300384 NANKAI, TIANJIN |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20110919 Address after: 300384 Tianjin New Technology Industrial Park Haitai Development Road No. 12 two Applicant after: Tianjin Act Measurement & Control Technology Co., Ltd. Address before: 300240, Tianjin, Dongli District, Grand Industrial Park, Jin Ji speed north entrance Applicant before: Tianjin Act Valve Control Equipment CO., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110629 |