CN106524884A - Zero adjustment device and zero adjustment method for servo mechanism - Google Patents
Zero adjustment device and zero adjustment method for servo mechanism Download PDFInfo
- Publication number
- CN106524884A CN106524884A CN201610856113.0A CN201610856113A CN106524884A CN 106524884 A CN106524884 A CN 106524884A CN 201610856113 A CN201610856113 A CN 201610856113A CN 106524884 A CN106524884 A CN 106524884A
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- China
- Prior art keywords
- adjusting rod
- bar
- zero
- control mechanism
- servo control
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to a zero adjustment device and zero adjustment method for a servo mechanism. The adjustment device includes an adjusting rod (5) and a tightening rod (6); two ends of the adjusting rod (5) are of outer hexagonal structures; the outer hexagon of the large end of the adjusting rod (5) is matched with the inner hexagon of a sleeve (3); the outer hexagon of the small end of the adjusting rod (5) is matched with a wrench; the length of the adjusting rod (5) is larger than the length of the inner hole of a piston rod (1); an inner hole is formed at the center of the tightening rod (6); the diameter of the inner hole of the tightening rod (6) is properly set, so that the adjusting rod (5) can just pass through the inner hole; two ends of the tightening rod are of external hexagonal structures; the external hexagon of the large end of the tightening rod is matched with the inner hexagon of a locking nut (4); and the external hexagon of the small end of the tightening rod is matched with the torque wrench.
Description
Technical field
The present invention relates to a kind of servo control mechanism feeds back the potentiometric zeroing of displacement, belong to displacement transducer zeroing technology neck
Domain.
Background technology
Feedback displacement potentiometer in servo control mechanism is the movement position measurement apparatus of piston rod, and its measured value is used as feedback
For the closed-loop control of servo control mechanism.For the feedback displacement potentiometer of certain carrier rocket one-level servo control mechanism, its resistor assembly
It is fixed on head shell, brush assembly of electric is fixed on pull bar, and pull bar is indirectly fixed on piston rod, pull bar is transported with piston rod
Moving can be with the position of output piston bar.In order to ensure the accuracy of piston rod position, need to adjust the initial zero position of brush assembly of electric.
It is adjustable that servo control mechanism realizes zero-bit by sleeve, and sleeve is to be threadedly coupled with piston rod, by adjusting sleeve threaded engagement position
Put and can be exported with the zero-bit of regulating piston bar, can realize that zero-bit is fixed by tightening fixing nut.For quick regulation sleeve
Position and nut is tightened, devise a kind of potentiometric balancing controls of feedback displacement.
As potentiometric regulating sleeve and fixing nut are arranged in the endoporus of piston rod, conventional tool is difficult to stretch into tune
Section, it is therefore desirable to design special device.As the zero-bit required precision of servo control mechanism is higher, needs avoid tightening fixing nut
While change sleeve portion and causing and mix up zero-bit variation.Therefore, the balancing controls of design need to solve above-mentioned two problems,
And operating process needs simply efficient.
The content of the invention
The present invention technology solve problem be：Overcome the deficiencies in the prior art, there is provided a kind of servo control mechanism balancing controls and
Adjusting zero method.
The present invention technical solution be：A kind of servo control mechanism balancing controls, including adjusting rod and tightening bar；Adjusting rod
Two ends are outer hexagonal structure, and big to hold outer six sides and interior six side of sleeve to coordinate, outer six sides of small end and force application apparatus coordinate, adjusting rod
Length more than hole length in piston rod；Tighten the centrally disposed endoporus of bar, between the diameter of the endoporus and adjusting rod external diameter are
Gap coordinates, it is ensured that adjusting rod can pass through the endoporus and play guide effect, and the two ends for tightening bar are outer hexagonal structure, and big end is outer
Six sides are coordinated with interior six side of locking nut, and small end outer six sides coordinated with force application apparatus.
Adjusting rod is prepared into into standard component, the outer hexagonal structure size at adjusting rod two ends is different, to be suitable for different servo machine
The size of six sides in structure sleeve.
The periphery of bar is tightened using annular knurl process, is easy to hand-held.
The adjusting zero method that a kind of utilization said apparatus are realized, step are as follows：
The first step, the outer-hexagonal of adjusting rod one end is placed in the interior hexagonal hole of servo control mechanism sleeve to be returned to zero；
Second step, will tighten bar through adjusting rod, and the outer-hexagonal for tightening bar one end enters the fixation for treating above-mentioned servo control mechanism
In the interior hexagonal hole of nut；
3rd step, carries out coarse adjustment zero-bit according to the zero-bit output voltage of servo control mechanism piston rod, rotates adjusting rod adjusting sleeve
Cylinder position, makes servo control mechanism potentiometer pull bar stretch out or retract, until zero-bit output voltage meets coarse adjustment requirement；
4th step, secured adjusted bar, rotation tighten bar to tighten servo control mechanism fixing nut；
5th step, judges whether the zero-bit output voltage of servo control mechanism piston rod still meets requirement, if meeting, takes
Go out adjusting rod and tighten bar；If being unsatisfactory for, start to perform from the 3rd step again, zero-bit output voltage takes out adjusting rod after meeting
With tighten bar.
The present invention is had the beneficial effect that compared with prior art：
1st, balancing controls only have and adjusting rod and tighten bar two parts, simple structure, low cost, can be adjusted with fast and reliable
Sleeve portion realizes that zero-bit is adjusted and tightens fixing nut, with higher economic benefit.
2nd, adjusting rod periphery is coordinated with the inner headed face gap for tightening bar, can increase by two frocks used at the same time stable
Property.
3rd, after zero-bit has been adjusted, when fixing nut is tightened, adjusting rod can be prevented from twisting through bar is tightened while using
Change zero-bit precision when fastening nut, improve zeroing efficiency.
Description of the drawings
Fig. 1 is adjusting rod schematic diagram of the present invention；
Fig. 2 tightens bar schematic diagram for the present invention；
Fig. 3 is schematic diagram of the apparatus of the present invention during zeroing.
Specific embodiment
Below in conjunction with the accompanying drawings and example elaborates to the present invention.
Design adjusting rod, such as Fig. 1 change the threaded engagement position of sleeve using it, so as to change be connected with sleeve anti-
Feedback potentiometer null positions.As sleeve interface is interior six side, adjusting rod two ends are outer six side, and length is long according to piston rod endoporus
Degree design.Adjusting rod 5 can be cylindrical masses part, and two ends are respectively outer six side；The size of outer six side can be with difference, it is also possible to will
Adjusting rod makes standard component, to be suitable for the various sizes of interior hexagonal hole of sleeve.
Bar is tightened in design, and such as Fig. 2 tightens fixing nut using it, tightens bar two ends for outer six side.Tightening bar center has one
Individual endoporus, adjusting rod can just be passed through, and adjust and tighten the operation of two steps without the need for separately carrying out, it is possible to achieve twist during regulation
Tight nut, and can prevent sleeve from rotating during tightening nut.It can be equally the cylinder with centre bore to tighten bar
Shape entity.
As shown in figure 3, the step of being returned to zero using above-mentioned balancing controls is as follows：
1) by adjusting rod 5 one be placed in the interior hexagonal hole of sleeve 3,
2) bar 6 will be tightened through adjusting rod 5, one is placed in the interior hexagonal hole of fixing nut 4；
3) coarse adjustment zero-bit is carried out according to the zero-bit output voltage of servo control mechanism piston rod 1, rotates the adjustment sleeve 3 of adjusting rod 5
Position, makes servo control mechanism potentiometer pull bar 2 stretch out or retract, and until zero-bit output voltage meets coarse adjustment requirement, such as displacement is passed
The coarse adjustment of sensor output voltage requires to be -10mV～+10mV, adds Yan Yibei than code requirement scope.
4) spanner secured adjusted bar is used, prevents sleeve 3 from rotating, prevent the zero-bit for mixing up from deviation occur, bar is tightened in rotation
To tighten servo control mechanism fixing nut.
During fixing nut is tightened, zero-bit is easy to produce deviation because of deformation or thread pitch, therefore
Need constantly to tighten and unclamp nut and zero-bit is finely tuned by adjusting rod；
Operator still blocks adjusting rod using spanner, is coordinated with outer six sides of small end for tightening bar using torque spanner, is applied
Plus screw-down torque.Judge whether the zero-bit output voltage of servo control mechanism piston rod still meets requirement, if meeting, take out and adjust
Pole and tighten bar；If being unsatisfactory for, fixing nut is unclamped by tightening bar, finely tune again zero-bit using adjusting rod, repeat to walk
Suddenly (3) and step (4), take out adjusting rod after zero-bit output voltage meets and tighten bar.
Unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. a kind of servo control mechanism balancing controls, it is characterised in that：Including adjusting rod (5) and tighten bar (6)；Adjusting rod (5) two ends
For outer hexagonal structure, the interior six sides cooperation of six sides and sleeve (3), outer six sides of small end and force application apparatus cooperation, adjusting rod outside big end
(5) length is more than the interior hole length of piston rod (1)；Tighten the centrally disposed endoporus of bar (6), the diameter of the endoporus and adjusting rod
(5) external diameter coordinates for gap, it is ensured that adjusting rod (5) can pass through the endoporus and play guide effect, and the two ends for tightening bar are outer
Hexagonal structure, the interior six sides cooperation of six sides and locking nut (4), outer six sides of small end and force application apparatus cooperation outside big end.
2. device according to claim 1, it is characterised in that：Adjusting rod is prepared into into standard component, outside adjusting rod two ends
Hexagonal structure size is different, to be suitable for the size of six sides in different servo mechanism sleeve (3).
3. device according to claim 1, it is characterised in that：The periphery of bar (6) is tightened using annular knurl process, is easy to hand
Hold.
4. the adjusting zero method that the device described in a kind of utilization claim 1 is realized, it is characterised in that step is as follows：
The first step, the outer-hexagonal of adjusting rod (5) one end is placed in the interior hexagonal hole of servo control mechanism sleeve (3) to be returned to zero；
Second step, will tighten bar (6) through adjusting rod (5), and above-mentioned servo control mechanism is treated in the outer-hexagonal entrance for tightening bar (6) one end
In the interior hexagonal hole of fixing nut；
3rd step, carries out coarse adjustment zero-bit according to the zero-bit output voltage of servo control mechanism piston rod (1), rotates adjusting rod (5) adjustment
Sleeve (3) position, makes servo control mechanism potentiometer pull bar (2) stretch out or retract, until zero-bit output voltage meets coarse adjustment requirement；
4th step, secured adjusted bar (5), rotation tighten bar (6) to tighten servo control mechanism fixing nut；
5th step, judges whether the zero-bit output voltage of servo control mechanism piston rod still meets requirement, if meeting, takes out and adjusts
Pole and tighten bar；If being unsatisfactory for, start to perform from the 3rd step again, zero-bit output voltage takes out adjusting rod and twists after meeting
Tight bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610856113.0A CN106524884A (en) | 2016-09-27 | 2016-09-27 | Zero adjustment device and zero adjustment method for servo mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610856113.0A CN106524884A (en) | 2016-09-27 | 2016-09-27 | Zero adjustment device and zero adjustment method for servo mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106524884A true CN106524884A (en) | 2017-03-22 |
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ID=58344518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610856113.0A Pending CN106524884A (en) | 2016-09-27 | 2016-09-27 | Zero adjustment device and zero adjustment method for servo mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN106524884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188699A (en) * | 2018-11-15 | 2020-05-22 | 北京自动化控制设备研究所 | Universal high-precision zero setting device for electric thrust vector servo mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787149A (en) * | 1982-01-15 | 1988-11-29 | Marposs Societa' Per Azioni | Gauge for checking linear dimensions of mechanical pieces |
| CN204255319U (en) * | 2014-11-14 | 2015-04-08 | 中国航空工业第六一八研究所 | A kind of stepless-adjustment zero structure of linear movement pick-up |
| CN105041761A (en) * | 2015-06-08 | 2015-11-11 | 北京精密机电控制设备研究所 | Zero adjustment device for servo actuator |
| CN105427982A (en) * | 2015-12-28 | 2016-03-23 | 南京晨光集团有限责任公司 | Potentiometer assembly zero setting unit |
| CN205248021U (en) * | 2015-12-28 | 2016-05-18 | 南京晨光集团有限责任公司 | Potentiometre assembly zero -reset unit |
-
2016
- 2016-09-27 CN CN201610856113.0A patent/CN106524884A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4787149A (en) * | 1982-01-15 | 1988-11-29 | Marposs Societa' Per Azioni | Gauge for checking linear dimensions of mechanical pieces |
| CN204255319U (en) * | 2014-11-14 | 2015-04-08 | 中国航空工业第六一八研究所 | A kind of stepless-adjustment zero structure of linear movement pick-up |
| CN105041761A (en) * | 2015-06-08 | 2015-11-11 | 北京精密机电控制设备研究所 | Zero adjustment device for servo actuator |
| CN105427982A (en) * | 2015-12-28 | 2016-03-23 | 南京晨光集团有限责任公司 | Potentiometer assembly zero setting unit |
| CN205248021U (en) * | 2015-12-28 | 2016-05-18 | 南京晨光集团有限责任公司 | Potentiometre assembly zero -reset unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111188699A (en) * | 2018-11-15 | 2020-05-22 | 北京自动化控制设备研究所 | Universal high-precision zero setting device for electric thrust vector servo mechanism |
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Application publication date: 20170322 |