CN103885463B - The spacing arrestment mechanism of electromechanical of rotating machinery and installation thereof, method of adjustment - Google Patents
The spacing arrestment mechanism of electromechanical of rotating machinery and installation thereof, method of adjustment Download PDFInfo
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- CN103885463B CN103885463B CN201410110090.XA CN201410110090A CN103885463B CN 103885463 B CN103885463 B CN 103885463B CN 201410110090 A CN201410110090 A CN 201410110090A CN 103885463 B CN103885463 B CN 103885463B
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Abstract
The spacing arrestment mechanism of electromechanical of rotating machinery and installation thereof, method of adjustment. The spacing arrestment mechanism of electromechanical is connected by the transmission mechanism in the drive system of power transmission and rotary system, and the motion of slewing is passed to spacing arrestment mechanism; Feature is to be also provided with rotating range adjusting device and emergency braking apparatus in the spacing arrestment mechanism of electromechanical; Wherein, the structure of rotating range adjusting device and emergency braking apparatus are to adopt the structure of electro-magnetic braking device to do respectively innovation. The rotary axis that the invention solves rotating machinery needs to realize target trajectory Continuous Tracking, anti-mechanical shock, the brake hard even in larger scope of ± 0 ~ 360 ° of scopes, prevent that cable continuous rotary from producing pull and twist off problem. Assembly technology of the present invention is simple, maintenance cost is low, bearing capacity is strong, and overall instrument reliability is high, failure rate is low; Rotating range is adjustable even in larger scope ± 0 ~ 360 ° of scopes.
Description
Technical field
The present invention relates to a kind of spacing arrestment mechanism, be specifically related to the spacing system of a kind of electromechanical for rotating machineryActuation mechanism. The invention still further relates to installation, the method for adjustment of the spacing arrestment mechanism of this electromechanical. The present invention is for deriving from national base11273039), Jiangsu Province's production, teaching & research project (bullets: BY2011167), the Chinese Academy of Sciences's astronomy gold project (bullets:Special (bullets: C-113).
Background technology
Altitude azimuth form astronomical telescope tracking system is made up of orientation rotation axle and altitude pitching axle, by azimuth axis and heightThe rotation of axle, realizes ± 0 ~ 360 ° of target followings that scope is even wider. When telescope carries out target following, orientation rotationAxle and altitude axis rotate continuously, and on altitude axis, the input/output signal of each measuring transducer and drive motors can be real by slip ringExisting signal transmission. But conducting slip ring can make the change at random of wire resistance generation certain limit, this is to weak letter in target followingNumber spectral characteristic and amplitude impact are very large. Telescopical tracking type of drive is mainly by turbine and worm transmission, gear drive, frictionTransmission and directly driving. Direct driving technologies have rigidity high, be easy to assembling, the advantage such as maintenance cost is low. Make direct drivingTechnology by more next be applied in astronomical telescope tracking system widely, at present, carry out in the world 30 meter levels of beforehand research and withIn the telescope of upper bore, type of drive is all counted and has been adopted direct driving technologies absolutely greatly. It is special that but direct drive mode needsBrake apparatus is realized the brake hard of equipment. Astronomical telescope, in tracing process, need to be realized in certain rotating rangeSpacing, brake, prevent mechanical shock. Therefore, when preventing that the servo-drive system of above-mentioned and similar equipment from breaking down to beingThe destruction of causing of system, need to arrange emergency braking apparatus, makes wire not because continuous rotation twists off, and realizes ± 0 ~ 360 ° of scopesEven wider target rotation. Need development to meet the spacing arrestment mechanism of the demand. In current prior art, stillThere is not the technical scheme that can meet above requirement.
Summary of the invention
Need to realize ± 0 ~ 360 ° of even wider target Continuous Tracking, revolve in order to solve the axle system of rotating machineryTurn, brake hard, prevent cable continuous rotary produce pull and twist off problem, the present invention will provide one for whirlerThe spacing arrestment mechanism of electromechanical of tool equipment, the present invention can realize brake hard simultaneously, rotating range is adjustable and mechanical position limitationIn the spacing arrestment mechanism of electromechanical of one. The violent shock that the present invention produces can avoid equipment malfunction time. The present invention also carriesFor installation, the method for adjustment of the spacing arrestment mechanism of this electromechanical.
The technical scheme that completes foregoing invention task is: the spacing brake of a kind of electromechanical for rotating machineryStructure, the spacing arrestment mechanism of this electromechanical is connected by the transmission mechanism in the drive system of power transmission and rotary system,The motion of slewing is passed to spacing arrestment mechanism; It is characterized in that, in the spacing arrestment mechanism of described electromechanical, also establishThere are rotating range adjusting device and emergency braking apparatus;
Wherein, the structure of rotating range adjusting device is: travelling gear is connected with power transmission shaft by expansion sleeve, on power transmission shaftBe designed with trapezoidal thread or ball screw groove, positive stop is connected with power transmission shaft by trapezoidal thread or ball screw groove,In the time that power transmission shaft rotates with the transmission mechanism of rotating machinery, on spacing frid, there is a rectangular channel, positive stop is limitedMoving along the positive and negative reciprocating linear of power transmission shaft axial direction, on positive stop, fixing the first magnetic element, the second magnetic element,The first magnetic element, the second magnetic element back and forth do rectilinear motion with positive stop, when the first magnetic element, the second magnetic elementWhile contact with F with corresponding sensor (approach switch) A, B, C, D, E, will feed back corresponding signal to host controller, and logicalKnow that system makes corresponding action; Sensor (approach switch) A, sensor B, sensor C, sensor D, sensor E and sensingDevice F divides three groups, and be fixed on can be along on the axially movable spacing trimmer of power transmission shaft;
Wherein, sensors A, sensor B are one group, and sensor C, sensor D are one group, and sensor E and sensor F are oneGroup.
Described emergency braking apparatus is to adopt electro-magnetic braking device, and its structure is: on the spacing arrestment mechanism of electromechanical right side(Fig. 1), electromagnetic brake connects with set bolt by right bearing end cap, and electromagnetic brake moves while being dead electricity, and telescope is followedWhen track system is normally worked, electromagnetic brake energising, coil holds armature, and electromagnetic brake is inoperative, works as upper controlWhen device discovery system exists fault, control signal can be sent emergent control signal, the action of notice electromagnetic brake, electromagnetic brakeDead electricity, armature, under the effect of spring, compresses brake block; Brake block is connected and is transmitted motion by flower tooth with spline housing; Then, systemPower passes to power transmission shaft by spline housing, and then passes to rotating machinery transmission system by pinion, realizes telescopeTracking system is implemented brake hard.
Above-described scheme is to be illustrated as an example of gear drive example, but type of belt drive of the present invention is not limited to this.
The present invention has following prioritization scheme:
1, adjusting zero-bit spacing trimmer, electromechanical can be braked to position-limit mechanism corresponding with the zero-bit of slewing. AdjustThe spacing trimmer of whole forward, can adjust slewing positive movement scope, adjusts the spacing trimmer of negative sense, can adjust rotationThe negative movement scope of equipment.
2, above the rectangular channel of spacing frid, post high-abrasive material, to reduce friction, improve service life.
3, in the spacing arrestment mechanism of described electromechanical, be also provided with position feedback system, the hard spacing and energy-absorbing buffering of machineryDevice; The structure of described position feedback system is: be that be equipped with absolutely in electromagnetic brake 7 outsides at the spacing brake structure end of electromechanicalTo formula encoder, obtain by the 1st step after the corresponding zero-bit of braking position-limit mechanism and slewing, just can by setting deviateDirectly to utilize spacing arrestment mechanism to obtain the run location of rotating machinery, and can equipment be set by PC control softwareRange of movement, thereby can not need the automatic position feed back signal of rotating machinery, also can control equipment.
The hard structure spacing and energy-absorbing buffer device of described machinery is: in the spacing arrestment mechanism of electromechanical, designedThe spacing brake apparatus of mechanical type, positive and negative spacing outside, forward buffer, negative sense buffer have been installed, in the time that control system is out of control,Telescope rotatable parts can be gone out its range of movement, and telescope rotary inertia is large, can produce violent shock, therefore designHydraulic draft gear falls the energy absorption of telescope rotatable parts, and avoids the violent destruction of causing optical instrument of clashing into, withTime be that thermal energy consumption is fallen by most of kinetic transformation of telescope, avoid equipment bounce-back.
4, described sensor (approach switch) A, B, C, D, E and F adopt redundancy structure, to increase the reliability of system.The feedback of zero point, positive and negative maximum position all adopts two approach switchs as detecting sensor, when work, as long as two elements haveCan normally work for one, braking position-limit mechanism just can run well.
Specifically, the present invention (Fig. 1-1, Fig. 1-2, Fig. 1-3) as shown in Figure 1: sensors A, B, C, D, E and F divide three groupsBeing fixed on can be along on the axially movable spacing trimmer 51,52,53 of power transmission shaft. Adjusting the spacing trimmer 52 of zero-bit can be by brakingPosition-limit mechanism is corresponding with the zero-bit of slewing. Adjust the spacing trimmer 31 of forward, can adjust slewing positive movementScope, adjusts the spacing trimmer 53 of negative sense, can adjust the negative movement scope of slewing. Positive stop 5 by screw thread withPower transmission shaft 1 connects, and passes when rotating shaft 1 is rotated and drives positive stop 5 to rotate, and in the time arriving sensors A, B, arrives maximum forward and adjustsWhole scope, sends signal by sensors A, B, notice supervisory controller, and control-driven system is taked corresponding action. Work as arrivalWhen sensor C, D, arrive zero-bit, in the time arriving sensor E, F, arrive maximum negative sense adjusting range, sent by sensor E, FSignal, notice supervisory controller, control-driven system is taked corresponding action.
The transmission device of described position-limit mechanism mainly by travelling gear 3, expansion sleeve 2, bearing (ball) cover 4,6, power transmission shaft 1,Spacing frid 9, positive stop 5, taper roll bearing 101,102 and transmission case 8 form. Adopt expansion sleeve 2 by travelling gear 3Be connected with power transmission shaft 1, can have the effect of transferring power and restriction torque capacity, protection transmission system produces to be destroyed; TransmissionAxle 1 is fixed on transmission case body 8 by tapered roller thrust bearing 101,102, and both sides limit and axially move with bearing (ball) cover 4,6Moving. Adopt tapered roller thrust bearing can bear larger axial load, and insensitive to axial impact. On power transmission shaft, processThere are trapezoidal thread or ball screw groove, according to the size of rotating machinery load and gearratio, design suitable screw thread (ball spiral shellRevolve) specification and length, to ensure that its range of movement can meet the range of movement of equipment axis system. Spacing frid 9(is shown in Fig. 1) upper designLimited location groove, and in structure, designed high-abrasive material, to reduce friction, improve wearability. Positive stop 5 is constrained on spacingPositive and negative linear reciprocating motion in groove. And touch by the first magnetic element 21, the second magnetic element 22 that are fixed on positive stop 5Send out sensor corresponding.
Spiral shell is adjusted in the main approach switch trimmer of the range of movement adjusting device of described position-limit mechanism 51,52,53, lockingNail 61,62,61,62,61,62, approach switch A, B, C, D, E, F, positive stop 5, the first magnetic element 21, the second magnetic element22 compositions.
The technical scheme that completes second invention task of the application is, installation, the tune of the spacing arrestment mechanism of above-mentioned electromechanicalAdjusting method, is characterized in that, step is as follows:
(1). when installation, first according to the zero point of telescopical azimuth axis and altitude axis, positive stop 5 is adjusted to spacingGroove (seeing the spacing frid of Fig. 1) center, then connects with the transmission system of slewing;
(2). adjust zero-bit approach switch trimmer 52;
(3). zero-bit approach switch C, D are created in response signal by the first magnetic element 21, the second magnetic element 22, useThe locked zero-bit approach switch trimmer 52 of screw 61,62 is adjusted in locking;
(4). forward rotation telescope orientation is to forward maximum position;
(5). adjust forward approach switch trimmer 51, forward approach switch A, B are by the first magnetic element 21, the second magneticProperty element 22 be created in response signal, adjust screw 61,62 locked forward approach switch trimmer 51 with locking;
(6). rotate backward telescope orientation to negative sense maximum position, adjust negative sense approach switch trimmer 53, negative sense approachesSwitch E, F is created in response signal by magnetic element, with the locked negative sense approach switch trimmer of locking adjustment screw 61,6253；
(7) thereby. determine the zero point of telescope azimuth axis, positive and negative range of movement. Altitude axis can be true by same processFixed its zero point, positive and negative motion orientation.
Described mechanical position limitation mechanism, the violent shock producing can avoid equipment malfunction time. When rotating machinery host computerControl system occurs abnormal, or emergency braking apparatus is when malfunctioning, and the follower of rotating machinery, under the effect of inertia, can surpassGo out the slewing area that its equipment specifies, this can cause very large destruction to system, for tracking system being limited to the fortune of licenseIn moving scope, in the outside of slewing area, design mechanical position limitation mechanism. All be provided with mechanical position limitation in positive and negative spacing outsideMechanism, the forward and reverse buffer 41,42 of mechanical absorption element is connected with spacing frid by set bolt 121,122, positive and negative machineryPower-absorbing 41,42 is connected with positive and negative mechanical absorption element holder respectively by screw thread, adjusts to suitable position, by twoNut is by locked to mechanical absorption element and holder. Mechanical absorption element 41,42 can telescope azel axle kinetic energyBe converted into heat energy, thereby avoid producing violent shock. Its course of work is as follows: will be with in the time that power transmission shaft rotates, by selfTrapezoidal thread (ball screw) drives positive stop 5 to rotate, and positive stop 5 is under the constraint of spacing frid 9 stopper slots, along transmissionThe axial positive and negative linear reciprocating motion of axle. In the time that positive stop 5 arrives sensors A, B, arrive maximum forward adjusting range, as long asA, B sensor have one can work, and just can send signal, notice supervisory controller, and control-driven system is taked correspondingAction. If sensors A, B all break down, and brake failure, cannot notify supervisory controller time, or upperWhen machine controller is out of control, the rotating shaft of rotating machinery just may be gone out the effective exercise scope of restriction, and at this moment, the machinery of forward is inhaledEnergy element 41, absorbs telescope kinetic energy to be converted into heat energy, prevents fierce shock, thereby causes precision instruments such as primary mirrorsDestruction. While waiting equally inverted running to occur above-mentioned fault, negative sense mechanical position limitation energy-absorbing original paper 42 can serve the same role.
Emergency brake when described emergency braking apparatus can be realized rotating machinery and surprisingly occurs. When needs equipment is justWhen normal running runs into emergency, need to stop in emergency, need emergency braking system, therefore, in limit retarder location mechanism, designThere is electro-magnetic braking device. On spiral position limiting structure right side, electromagnetic brake 7 connects by right bearing end cap 6 use set bolts 112Connect, electromagnetic brake 7 moves during for dead electricity, and when telescope tracking system is normally worked, electromagnetic brake 7 is switched on, and coil 14 willArmature 15 holds, and brake is inoperative, in the time that host controller discovery system exists fault, can send emergent control signal,Notice electromagnetic brake 7 moves, electromagnetic brake 7 dead electricity, and armature 15, under the effect of spring 17, compresses brake block 16. BrakeSheet 16 is connected and is transmitted motion by flower tooth with spline housing 18. Then, brake force passes to power transmission shaft 1 by spline housing 18, and thenLogical gear 3(Fig. 1) pass to rotating machinery transmission system, realize the brake hard to telescope tracking system.
The axle system that the invention solves rotating machinery needs to realize target Continuous Tracking, the rotation of ± 0 ~ 360 °, promptly makeMove, prevent that cable continuous rotary from producing pulls and a series of functions such as twist off. The present invention can realize urgent system simultaneouslyMoving, rotating range is adjustable and the mechanical spacing arrestment mechanism that is firmly limited in one. Assembly technology of the present invention is simple, be maintained asThis is low, bearing capacity is strong, and overall instrument reliability is high, failure rate is low; Rotating range is even wider ± 0 ~ 360 ° of scopesInterior adjustable.
Brief description of the drawings
Fig. 1 (containing Fig. 1-1, Fig. 1-2, Fig. 1-3) is the three-dimensional schematic diagram of the spacing mechanism processed of telescope;
Fig. 2 is the spacing adjustment of rotating machinery and feedback principle figure;
Fig. 3 is spacing mechanism transmission device structure chart;
Fig. 4 (containing Fig. 4-1, Fig. 4-2, Fig. 4-3) is the adjustment of rotating machinery range of movement and feedback principle figure;
Fig. 5 (containing Fig. 5-1, Fig. 5-2) is the hard spacing adjustment of rotating machinery and feedback principle figure;
Fig. 6 is rotating machinery brake hard feedback and operating range control principle drawing;
Fig. 7 is that spacing arrestment mechanism is at telescope tracking system application principle figure.
Detailed description of the invention
Embodiment 1, for telescope tracking system synthesis experiment platform. Adopt this braking position-limit mechanism to this tracking systemImplement range of movement detection, system exception protection and brake hard.
The spacing arrestment mechanism in orientation is connected with the gear wheel of telescope orientation drive system by its travelling gear, will look in the distanceThe motion of mirror passes to spacing arrestment mechanism, and travelling gear is connected with power transmission shaft by expansion sleeve, has trapezoidal thread on power transmission shaft,Positive stop is connected with power transmission shaft by trapezoidal thread, in the time that main shaft rotates, has a rectangular channel, by spacing on spacing frid 9Block 5 be limited to along power transmission shaft 1 before and after axial direction reciprocating linear move, on positive stop 5, fixed the first magnetic element 21,The second magnetic element 22, the first magnetic elements 21, the second magnetic element 22 come and go and do rectilinear motion with positive stop 5, work as magneticElement and corresponding approach switch contact, will feed back corresponding signal to host controller, and notice is logical making accordinglyAction.
Detailed design is that the transmission device of described position-limit mechanism is mainly by travelling gear 3, expansion sleeve 2, bearing (ball) cover4,6, power transmission shaft 1, spacing frid 9, positive stop 5, taper roll bearing 101,102 and transmission case 8 form (see figure 3). AdoptTravelling gear 3 is connected with power transmission shaft 1 with expansion sleeve 2, can has the effect of transferring power and restriction torque capacity, protection passesMoving system produces to be destroyed; Power transmission shaft is fixed on transmission case body 8 by tapered roller thrust bearing 101,102, both sides bearingEnd cap 4,6 limits and moves axially. Adopt tapered roller thrust bearing can bear larger axial load, and to axial impact notResponsive. On power transmission shaft, be processed with trapezoidal thread, according to telescopical size, rotate suitable screw thread specification and length, to ensureIts range of movement can meet the range of movement of telescope azel axle. Spacing frid 9(is shown in Fig. 1) on be designed with stopper slot,Its size is determined according to the size of telescope size and range of movement. Positive stop 5 is constrained in stopper slot positive and negative back and forth straightLine motion. And by being fixed on the first magnetic element 21, the second magnetic element 22 on the positive stop 5 corresponding sensing of setting outDevice.
Spiral shell is adjusted in the main approach switch trimmer of the range of movement adjusting device of described position-limit mechanism 31,32,33, lockingNail 61,62,61,62,61,62, approach switch A, B, C, D, E, F, positive stop 5, magnetic element 21,22 compositions. When installation, headFirst, according to the zero point of telescopical azimuth axis and altitude axis, positive stop 5 is adjusted to stopper slot (seeing the spacing frid of Fig. 1) centerPosition, then connects with telescope, adjusts zero-bit approach switch trimmer 51, and zero-bit approach switch C, approach switch D pass throughWhen the first magnetic element 21, the second magnetic element 22, produce response signal, approach and open by locking adjustment screw 63,64 locked zero-bitsClose trimmer 52; Forward approach switch trimmer 51, to forward maximum position, is adjusted in forward rotation telescope orientation, and forward approachesSwitch A, approach switch B are created in response signal during by the first magnetic element 21, the second magnetic element 22, adjust spiral shell with lockingNail 61,62 locked forward approach switch trimmers 51; Rotate backward telescope orientation to negative sense maximum position, adjust forward and approachSwitch trimmer 53, negative sense approach switch E, approach switch F are created in during by the first magnetic element 21, the second magnetic element 22Response signal, with the locked negative sense approach switch trimmer 53 of locking adjustment screw 65,66; Thereby determine telescope azimuth axisZero point, positive and negative range of movement. Altitude axis can be determined its zero point by same process, positive and negative motion orientation. Approach switch adoptsRedundancy structure to increase the reliability of system. The feedback of zero point, positive and negative maximum position all adopts two approach switchs to examine the mostSurvey sensor, when work, as long as two elements have one can normally work, braking position-limit mechanism just can run well.
The violent shock producing during for fear of equipment malfunction, braking position-limit mechanism has designed mechanical position limitation mechanism. Work as prestigeMirror upper computer control system far away occurs abnormal, or emergency braking apparatus is when malfunctioning, and telescopical follower is at the work of inertiaWith under, can exceed the slewing area that its equipment specifies, this can cause very large destruction to system, for tracking system is limited toIn the range of movement of license, in the outside of slewing area, design mechanical position limitation mechanism. All be provided with in positive and negative spacing outsideMechanical position limitation mechanism, mechanical absorption element forward buffer 41, negative sense buffer 42 is by set bolt 121,122 and stopper slotPlate 9 connects, and forward buffer 41, negative sense buffer 42 are connected with positive and negative mechanical absorption element holder respectively by screw thread, adjustsWhole to suitable position, by double nut by locked to mechanical absorption element and holder. Mechanical absorption element buffer 41, bufferingDevice 42 can be heat energy by the kinetic transformation of telescope azel axle, thereby avoids producing violent shock. Its course of workAs follows: the altitude axis of telescope tracking test platform and azimuth axis have all been installed the spacing arrestment mechanism of electromechanical, wherein azimuth axisThe motion that braking position-limit mechanism 25 is realized azimuth axis by travelling gear (pinion) 3 azimuth axis gear wheel 24 engagements of itself passesMoving, altitude axis braking position-limit mechanism 23 engages with altitude axis gear wheel 23 motion that realizes altitude axis by the pinion 3 of itselfTransmission. Taking azimuth axis motion as example, the operation principle of the spacing arrestment mechanism of electromechanical and installation thereof, method of adjustment are described. Look in the distanceWhen the motion of mirror azimuth axis, engage by the travelling gear (pinion) 3 of the spacing arrestment mechanism 25 in Azimuth main drive gear 24 and orientation, willAn orientation braking position-limit mechanism is transmitted in motion. Drive the power transmission shaft 1 of orientation braking position-limit mechanism 25 to rotate, power transmission shaft 1 passes through certainlyThe trapezoidal thread (ball screw) of body drives positive stop 5 to rotate, positive stop 5 under the constraint of spacing frid 9 stopper slots, edgeTransmission shafts is to positive and negative linear reciprocating motion. In the time that positive stop 5 arrives sensors A, B, arrive maximum forward adjusting range,As long as A, B sensor has one can work, and just can send signal, notice supervisory controller, and control-driven system is takedCorresponding action. If A, B sensor all breaks down, and brake failure, cannot notify supervisory controller time, orWhen supervisory controller is out of control, telescopical azimuth axis or altitude axis just may be gone out the effective exercise scope of restriction, at this moment,The mechanical absorption element forward buffer 41 of forward, absorbs telescope kinetic energy to be converted into heat energy, prevents fierce shock, fromAnd cause the destruction to precision instruments such as primary mirrors. While waiting equally inverted running to occur above-mentioned fault, negative sense mechanical position limitation energy-absorbing is formerPart forward buffer 42 can serve the same role. 41-1 in figure and 42-1 are respectively the 3rd magnetic element 41 and the 4th magneticThe holder of property element 42.
Emergency brake when emergency braking apparatus can be realized telescope and surprisingly occurs. When needs equipment is in the chance that runs wellDuring to emergency, need to stop in emergency, need emergency braking system, therefore, design in azimuth axis limit retarder location mechanism 25There is electro-magnetic braking device. On the spacing brake structure of electromechanical 25 right sides, electromagnetic brake 7 is by the fixing spiral shell of right bearing end cap 6 useBolt 112 connects, and electromagnetic brake 7 moves during for dead electricity, and when telescope tracking system is normally worked, electromagnetic brake 7 is switched on, lineCircle 14 holds armature 15, and electromagnetic brake 7 is inoperative, in the time there is fault in host controller discovery system, and control signal21 can send emergent control signal, and notice electromagnetic brake 7 moves, electromagnetic brake 7 dead electricity, and armature 15 is in the effect of spring 17Under, compress brake block 16. Brake block 16 is connected and is transmitted motion by flower tooth with spline housing 18. Then, brake force is passed through spline housing18 pass to power transmission shaft 1, and then logical travelling gear 3(Fig. 1) pass to telescope azimuth axis gear wheel 24, realize telescope is followedThe azimuth axis of track system is implemented brake hard.
Installation, the debugging of the braking position-limit mechanism 26 of altitude axis are identical with operation principle and azimuth axis, repeat no more.
Claims (1)
1. the installation of the spacing arrestment mechanism of electromechanical, a method of adjustment, the method related for rotating machineryThe spacing arrestment mechanism of electromechanical, is connected by the transmission mechanism in the drive system of power transmission and rotary system, will revolveThe motion that turns equipment passes to spacing arrestment mechanism; In the spacing arrestment mechanism of described electromechanical, be also provided with rotating range adjustment dressPut and emergency braking apparatus; Wherein, the structure of rotating range adjusting device is: travelling gear connects by expansion sleeve and power transmission shaftConnect, have trapezoidal thread or ball screw groove on power transmission shaft, positive stop is by trapezoidal thread or ball screw groove and transmissionAxle connects, and in the time that main shaft rotates, has a rectangular channel on spacing frid; Spacing gear is limited to before power transmission shaft axial directionRear rectilinear movement, is fixed with the first magnetic element (21) on positive stop, the second magnetic element (22), this first magnetic element(21), the second magnetic element (22) comes and goes and does rectilinear motion with postioning abutment, when this magnetic element and corresponding approach switch connectWhile touching, will feed back corresponding signal to host controller, and reporting system is made corresponding action; Sensors A, sensor B, biographySensor C, sensor D, sensor E and sensor F divide three groups, and be fixed on can be along on the axially movable spacing trimmer of power transmission shaft; InstituteStating emergency braking apparatus is to adopt electro-magnetic braking device, and its structure is: on spiral position limiting structure right side, electromagnetic brake is by rightBearing (ball) cover connects with set bolt, and electromagnetic brake moves while being dead electricity, when telescope tracking system is normally worked, and electromagnetic systemMoving device energising, coil holds armature, and electromagnetic brake is inoperative, in the time there is fault in host controller discovery system, controlSignal processed can send emergent control signal, the action of notice electromagnetic brake, and electromagnetic brake dead electricity, armature is in the effect of springUnder, compress brake block; Brake block is connected and is transmitted motion by flower tooth with spline housing; Then, brake force passes to by spline housingPower transmission shaft, and then logical gear transmission is to rotating machinery drive system, realizes telescope tracking system is implemented to brake hard;
It is characterized in that, step is as follows:
(1). when installation, first according to the zero point of telescopical azimuth axis and altitude axis, positive stop is adjusted to stopper slot centerPosition, then connects with telescope;
(2). adjust zero-bit approach switch trimmer;
(3). null pick-up C, D, by the first magnetic element (21), are created in response signal when the second magnetic element (22), useThe locked zero-bit approach switch of screw (61,62) trimmer is adjusted in locking;
(4). forward rotation telescope orientation is to forward maximum position;
(5). adjust forward approach switch trimmer, forward sensors A, B are by the first magnetic element (21), the second magnetic element(22) time, be created in response signal, with the locked forward approach switch of locking adjustment screw (61,62) trimmer;
(6). rotate backward telescope orientation to negative sense maximum position, adjust negative sense approach switch trimmer, negative sense sensor E, FBy the first magnetic element (21), when the second magnetic element (22), be created in response signal, adjust screw (61,62) with locking and lockDead negative sense approach switch trimmer;
(7) thereby. determine the zero point of telescope azimuth axis, positive and negative range of movement; Altitude axis by same process determine its zeroPoint, and positive and negative motion orientation.
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| CN201410110090.XA CN103885463B (en) | 2014-03-21 | 2014-03-21 | The spacing arrestment mechanism of electromechanical of rotating machinery and installation thereof, method of adjustment |
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| CN104634567B (en) * | 2015-01-30 | 2017-03-29 | 合肥工业大学 | For the device of gear train assembly performance test |
| CN106092088B (en) * | 2016-06-16 | 2019-04-05 | 上海航天控制技术研究所 | A kind of three axis Photoelectric Tracking and Aiming mechanisms based on rotating carrier |
| CN106532267B (en) * | 2016-12-27 | 2019-04-26 | 中国科学院国家天文台 | A kind of telescope being provided with azimuth determination and limit control system |
| CN108873307B (en) * | 2018-06-20 | 2020-07-17 | 中国科学院光电技术研究所 | Safety brake protection structure for azimuth axis of large-caliber telescope |
| CN108757877B (en) * | 2018-08-23 | 2023-04-25 | 桂林航天工业学院 | Flexible mechanical feedback device of friction wheel |
| CN114382805B (en) * | 2022-01-10 | 2022-11-22 | 珠海格力电器股份有限公司 | Main shaft braking system |
| CN116381925B (en) * | 2023-04-18 | 2024-06-14 | 山东大学 | Astronomical telescope limit protection method and device and astronomical telescope system |
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