CN101487757A - Dynamic balancing measurement machine - Google Patents
Dynamic balancing measurement machine Download PDFInfo
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- CN101487757A CN101487757A CNA200910300292XA CN200910300292A CN101487757A CN 101487757 A CN101487757 A CN 101487757A CN A200910300292X A CNA200910300292X A CN A200910300292XA CN 200910300292 A CN200910300292 A CN 200910300292A CN 101487757 A CN101487757 A CN 101487757A
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Abstract
The invention relates to a dynamic balance measuring machine, which comprises a stand. A gear box is arranged at the stand, an input shaft and an output shaft are arranged in the gear box, the output shaft is connected with a main shaft of an electric jigger through a clutch, and a main shaft of the electric jigger is driven by an electric motor to rotate forwards and reversely; and a speed change mechanism is arranged between the input shaft and the output shaft in the gear box, and the speed change mechanism comprises a speed change gear and a gear selecting device which are engaged with each other. The invention mainly provides the dynamic balance measuring machine in which the gear box has wide working range and comparatively high raising speed, can bear positive and negative torque, carries out bidirectional measurement and control, and is applied to large-vibration environment; and the dynamic balance measuring machine solves the technical problems that the dynamic balance measuring machine has limited application range, can only bear unidirectional torque and carries out unidirectional measurement and control in the prior art.
Description
Technical field
The present invention relates to a kind of dynamic balancing measurement machine.
Background technology
Along with the continuous development of producing, the part that need carry out balance is more and more, and is also big more in batches.In order to raise labour productivity, improve working conditions, each industrial country was just studied the balance automatic technology as far back as nineteen fifties, and had produced semi-automatic equilibrator and transient equilibrium transfer matic in succession.The micro processor controls technology of balancer is one of direction of present world dynamic balancing technique development.Dynamic balancing measurement machine generally is arranged between drive motor and the transient equilibrium equipment with gear case, the parameter of testing transient equilibrium equipment by the speed changing function in the gear case.Chinese patent: " novel dynamic balance measuring instrument (CN2789746) ", comprise drive motor, driving belt, vibration measuring supporting vibration-measuring sensor and phase detector, the vibration measuring supporting is made up of two parallel secondary undulation body mechanisms, driving belt is installed between the two accessory shock kinetoplast mechanisms by motor-driven, and the belt direction is parallel to vibrating mass mechanism; Vibrating mass mechanism comprises pedestal and support, has the hole on the pedestal, and the lower end of support is stretched in this hole, and its shape cooperates with the hole; Have several air holes on the inwall of hole, the air hole other end communicates with source of the gas; Vibration-measuring sensor is rack-mount.This structure is applicable in the high-precision dynamic balancing measurement that in the non-vibration direction, higher gas film stiffness is the motion of limit bracket lower end effectively, makes that the transverse movement of vibrating mass mechanism is little.But for requiring the frequent lifting speed of wheel box, bear the requirement of positive reactive torque and do not satisfy, can not in big vibration environment, use.
Summary of the invention
It is wide that the present invention mainly provides a kind of working range of gear case, and raising speed is bigger, can bear positive reactive torque, carries out two-way observing and controlling, is adapted at the dynamic balancing measurement machine that uses in the big vibration environment; Solve the restricted application of existing in prior technology dynamic balancing measurement machine, can only bear unidirectional torque, carried out the technical matters of unidirectional observing and controlling.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: a kind of dynamic balancing measurement machine, comprise support, on support, be provided with gear case, be provided with input shaft and output shaft in the described gear case, described output shaft is connected with the main shaft of electric barring by clutch coupling, and the main shaft of described electric barring is by the positive and negative two-way rotation of driven by motor; Be provided with speed changing structure between input shaft and the output shaft in the described gear case, described gear comprises intermeshing speed gear and gear selecting arrangement.The wage scope of gear case is very wide, and raising speed is bigger frequently, reaches 1:4.25, and rotating speed rev/min to 12500 rev/mins, also will be realized rotating from hundreds of in this working range, avoid responsive rotating speed.The external rotor to be tested of output shaft is evenly heated in measuring process or is cooled off in order to make rotor, avoids rotor owing to heating or inhomogeneous cooling produces distortion, destroys the virgin state of rotor.So the free end at output shaft is connected with electric barring, reduction of speed makes rotor to be tested to heat up under the situation of slowly rotating or cooling than being 138:1.Select driving output shaft by clutch coupling, can maximum drive be 32 tons rotor.This electric barring can be realized rotating, makes output shaft still can realize rotating in big working range, thereby carries out two-way observing and controlling, can use in big vibration environment.Simultaneously between input shaft and output shaft, select to control different meshing gears by the gear selecting arrangement, thus the control output speed.
As preferably, the two ends of described input shaft and output shaft respectively are provided with a gear, gear on the input shaft and the gearing mesh on the output shaft, wherein the ratio of gear of two pitch wheels of an end is provided with the gear selecting arrangement greater than the ratio of gear of intermeshing two gears of the other end between two groups of pitch wheels.The ratio of gear difference of two groups of pitch wheels is provided with the gear selecting arrangement between two groups of pitch wheels, select where to organize gear by the gear selecting arrangement and carry out work.
As more preferably, being socketed on the input shaft of two gear activities of described input shaft; One of two gear on the described output shaft big one little, the diameter of axle of the output shaft between pinion wheel and gear wheel increases gradually; The gear tooth width that matches with output shaft gear wheel and pinion wheel on the input shaft is less than being socketed in the cog thickness of wheel hub of input shaft.Thereby small one and large one changes ratio of gear gear, and the diameter of axle of the output shaft between gear wheel and pinion wheel changes, and makes center of gravity move on to the center, thereby makes that the high rotating speed rotation of output shaft is more steady.The gear wheel hub of input shaft has reduced Gear Processing workload, the good manufacturability on the input shaft like this greater than the facewidth simultaneously, make that simultaneously the width that is socketed on the input shaft is wideer, thereby the rotation of the gear on the input shaft is more steady.
As preferably, described gear selecting arrangement comprises and is socketed in the active Option stage that can move vertically on the input shaft, the external peripheral surface that is meshed with the active Option stage on the input shaft is a spline surface, initiatively the inside surface of Option stage is meshed with the outside surface of input shaft, described active Option stage is between two gears, be fixed with driven Option stage by pin on the end face of two of two ends gears on the input shaft, be connected with the shift fork functional unit on the described active Option stage.Initiatively Option stage can by the axially-movable of active Option stage, be selected to mesh with different driven Option stages, thereby drive the gear of fixedlying connected with driven Option stage in the axially-movable of input shaft upper edge.Because initiatively Option stage is positioned on the input shaft, has saved intermediate shaft, and initiatively Option stage is rotation synchronously with gear shaft, by the different gears on the selection input shaft, thereby has realized speed change.Initiatively Option stage is realized axially-movable by shift fork.Shift fork is fixed on the pressing fork rack, pressing fork rack is supported on the connecting rod, along with the operating grip drivening rod on the operator link rotates, thereby driving pressing fork rack and shift fork rotates, because connecting rod and gear shaft are orthogonal, the rotation of shift fork has driven the initiatively axially-movable of Option stage, and the shift fork part-structure is simple, easy to operate, the rotating operation bar just can be selected gear.
As more preferably, described shift fork functional unit comprises two shift forks of the correspondence setting that is positioned on the input shaft diametric(al), shift fork is fixed on the pressing fork rack by pin, pressing fork rack is fixed on the connecting rod by pin, connecting rod is socketed in the connecting hole of bracing frame, described bracing frame is fixed on the casing of gear case, and connecting rod is circumscribed with operating grip, and operating grip is positioned at outside the gear case; Described pressing fork rack, bracing frame and connecting rod are positioned at the below of input shaft and output shaft.The shift fork symmetric arrangement makes pressing fork rack to rotate reposefully, and pressing fork rack, bracing frame and connecting rod all are positioned at the lower end of input shaft and output shaft, reasonable structural arrangement, and support effect is good.
As preferably, described clutch coupling comprises active clutch and by dynamic clutch, described active clutch is socketed on the main drive shaft, the motor shaft of main drive shaft and electric barring meshes by cone gear, be provided with operating rod above active clutch, operating rod joins by handle structure and active clutch, and described active clutch is in the form of annular discs, end face at active clutch is provided with rectangular teeth, is provided with groove at the external peripheral surface of active clutch; The shape of the described end face that is joined by dynamic clutch and active clutch is identical with the end surface shape of active clutch.The rectangular tooth of the end face of active clutch can satisfy rotating and reverse of main drive shaft, thereby has satisfied the two-way rotation requirement of dynamic balancing machine rotor.Simultaneously clutch coupling is relatively simple for structure, easy to operate, only needs the manipulation bar just can control active clutch and closed between the dynamic clutch or divide.Active clutch directly links to each other with main drive shaft, does not need the transition of intermediate member, makes that the clutch of clutch coupling is more convenient stable, effective.
As more preferably, described catanator includes the driving lever that links to each other with operating rod, driving lever is connected with follower lever by sliding pin, respectively be connected with a rotating shaft on driving lever and the follower lever, be connected with bull stick in the rotating shaft, the end of bull stick is provided with shifting block, and shifting block matches with groove on the active clutch, is provided with spring between driving lever and follower lever.The similar four-bar linkage of catanator, stir active clutch by shifting block, it is stuck that this structure of while can avoid the dead angle to prevent, thereby the straight line that makes control lever control active clutch more easily moves, thereby it is, flexible and convenient to use with passive clutches engaged.
As preferably, described input shaft is circumscribed with shaft coupling outside gear case, and described shaft coupling and electric barring are positioned at the outer the same side of gear case.Connect drive motor by shaft coupling, shaft coupling and electric barring are positioned at the outer the same side of gear case, connection and reasonable arrangement, and it is convenient to drive.
Therefore, dynamic balancing measurement machine of the present invention has following advantage: 1, the output shaft free end in the gear case is connected with electric barring, guarantees that rotor can heat up under the situation of slowly rotating or cooling, thereby keeps the virgin state of rotor, realized the rotating driving simultaneously, two-way observing and controlling; 2, the gear selecting arrangement is set between input shaft and output shaft, simple in structure, realized frequent lifting speed, raising speed is than big, and the working range of gear case is wide; 3, the clutch coupling that can realize positive and negative engagement is set between electric barring and the output shaft, realizes two-way rotation, widened the range of application of dynamic balancing machine; 4, the variation of the diameter of axle between the big pinion wheel on the output shaft can be moved center of gravity to the center, thereby improves the stationarity that output shaft rotates.5, the gear wheel hub of input shaft has reduced Gear Processing workload, the good manufacturability on the input shaft greater than the work facewidth, makes that simultaneously the width that is socketed on the input shaft is wideer, and the gear rotation is more steady.
Description of drawings:
Fig. 1 is the front view of dynamic balancing measurement machine of the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the view that the gear case in Fig. 1 removes loam cake.
Fig. 4 is the B-B cut-open view in Fig. 2.
Fig. 5 is the partial sectional view of electric barring and output shaft engagement.
Fig. 6 is an A-A cut-open view in Fig. 5.
Fig. 7 is the synoptic diagram of the active clutch in Fig. 5.
Fig. 8 is the left view of Fig. 7.
Fig. 9 is that the C of Fig. 7 is to stretch-out view.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment:
As illustrated in fig. 1 and 2, a kind of dynamic balancing measurement machine, comprise support 1, on support 1, gear case is arranged by bolt, gear case comprises loam cake 2 and lower body 3, on loam cake 2, be fixed with Bentley probe 4, thermometer 5 and cast aluminium terminal box 6, on lower body 3, be fixed with electro connecting pressure gauge 7 and electric contact thermometer 8.As shown in Figure 3, in gear case, be provided with the input shaft 9 and the output shaft 10 that are parallel to each other, the two ends of input shaft 9 and output shaft 10 respectively are provided with a radial thrust bearing 11, the outside at the radial thrust bearing 11 of input shaft 9 one ends is provided with oil pooling hood 12, end at input shaft 9 is connected with shaft coupling 14 by bolt 13, links to each other with drive motor by shaft coupling 14.The outside at the transverse bearing 11 of output shaft 10 1 ends is connected with electric barring 15 by clutch coupling, electric barring 15 and shaft coupling 14 are positioned at the same side of gear case, are connected with transient equilibrium equipment at the other end of output shaft 10 outer shield 16 by the output shaft shaft coupling.As shown in Figure 5, the motor shaft 17 of electric barring 15 is by cone gear 18 and main drive shaft 19 engaged transmission, and active clutch 20 is socketed on the main drive shaft 19, is socketed on the output shaft 10 by dynamic clutch 21.Shown in Fig. 7 and 8 and 9, active clutch 20 is in the form of annular discs, is provided with rectangular teeth 22 at the end face of active clutch 20, and the end face of rectangular teeth 22 is arc surfaces 23, makes things convenient for active clutch 21 and by dynamic clutch 21 clutches, reduces friction.Above active clutch 20, be provided with operating rod 24, operating rod 24 joins by handle structure and active clutch 20, catanator includes the driving lever 25 that links to each other with operating rod 24, driving lever 25 is connected with follower lever 26 by sliding pin, respectively be connected with a rotating shaft 27 on driving lever 25 and the follower lever 26, be connected with bull stick 28 in the rotating shaft 27, the end of bull stick 28 is provided with shifting block 29, shifting block 29 matches with groove 30 on being arranged on active clutch 20, between driving lever 25 and follower lever 26, be provided with spring 43, a similar sliding pin four bar structures (as shown in Figure 6) of catanator.The shape of the end face that is joined by dynamic clutch 21 and active clutch 20 is identical with the end surface shape of active clutch 20.When controlled clutch, only need manipulation bar 24, just can control active clutch 20 and by the clutch between the dynamic clutch 21.At the input gear 31 that is socketed with of each activity of the two ends of input shaft 9, be provided with two output gears in that the two ends of output shaft 10 and input gear 31 are corresponding, output gear and output shaft 10 are integrated.Two output gears on output shaft 10 small one and large one, distance between gear wheel 32 and the pinion wheel 33 is 300mm, the diameter of axle of the output shaft 10 between pinion wheel 33 and gear wheel 32 increases gradually, the angle of inclination of the external peripheral surface of output shaft 10 is 45 °, the output shaft 10 that becomes diameter makes center of gravity move to the center, so the rotation of output shaft 10 is more steady.On the input shaft 9 with output shaft 10 on gear wheel 32 and input gear 31 facewidth that match of pinion wheel 33 less than the thickness of wheel hub.Make that like this input gear 31 on the input shaft 9 is wideer by the facewidth that bearing holder (housing, cover) is connected on the input shaft, more steady thereby the gear on the input shaft 9 rotates.Shown in Fig. 3 and 4, be provided with the gear selecting arrangement between two input gears 31 on the input shaft 9, the gear selecting arrangement comprises initiatively Option stage 34 and driven Option stage 35, is connected with shifting fork mechanism on active Option stage 34.Initiatively Option stage 34 is socketed on the input shaft 9, and can be along axially the moving of input shaft 9, and initiatively the surfaces externally and internally of Option stage 34 is spline surface, and inside surface cooperates with input shaft 9, and outside surface cooperates with driven Option stage 35.Driven Option stage 35 is fixed on the end face of input gear 31 by pin 36.Shifting fork mechanism comprises shift fork 37, pressing fork rack 38, connecting rod 39, bracing frame 40 and operating grip 41, and wherein pressing fork rack 38, connecting rod 39, bracing frame 40 are positioned at the below of input shaft 9 and output shaft 10.Wherein shift fork 37 has two, two shift forks 37 are positioned at initiatively Option stage 34 same diametric two ends, shift fork 37 is fixed on the pressing fork rack 38, connecting hole and operating grip 41 that connecting rod 39 passes on the bracing frame 40 join, pressing fork rack 38 is fixing with connecting rod 39 by pin 42, and bracing frame 40 is fixed on the casing.
Principle of work of the present invention is as follows:
Input shaft end is circumscribed with drive motor by shaft coupling, is connected with electric barring at an end of output shaft, and by Clutch Control, electric barring can be realized rotating, at the external transient equilibrium equipment of the other end of output shaft between electric barring and output shaft.When beginning to start, utilize electric barring that rotor to be tested is evenly heated earlier, after reaching uniform temperature, by clutch coupling output shaft is separated with the main drive shaft of electric barring, by the gear selecting arrangement, select the engaging tooth wheels on input shaft and the output shaft, thus the rotating speed of control output shaft.In like manner, when closing, also utilize clutch coupling that electric barring is connected with output shaft, the rotor that tests is evenly cooled off.The working range extra wide of this gear case, raising speed is bigger, reach 1:4.25, rotating speed can rev/min change in 12500 rev/mins working range at hundreds of, and can realize busy shift and rotating, and the vibration of self is little simultaneously, noise control is in 90 decibels, the barring gear that attaches on the gear case, reduction of speed is than being 138:1, the maximum drive amount is 32 tons a rotor.
Claims (9)
- [claim 1] a kind of dynamic balancing measurement machine, comprise support, on support, be provided with gear case, be provided with input shaft and output shaft in the described gear case, it is characterized in that: described output shaft is connected with the main shaft of electric barring by clutch coupling, and the main shaft of described electric barring is by the positive and negative two-way rotation of driven by motor; Be provided with speed changing structure between input shaft and the output shaft in the described gear case, described gear comprises intermeshing speed gear and gear selecting arrangement.
- [claim 2] a kind of dynamic balancing measurement machine according to claim 1, it is characterized in that: the two ends of described input shaft and output shaft respectively are provided with a gear, gear on the input shaft and the gearing mesh on the output shaft, wherein the ratio of gear of two pitch wheels of an end is provided with the gear selecting arrangement greater than the ratio of gear of intermeshing two gears of the other end between two groups of pitch wheels.
- [claim 3] a kind of dynamic balancing measurement machine according to claim 2 is characterized in that: being socketed on the input shaft of two gear activities of described input shaft; One of two gear on the described output shaft big one little, the diameter of axle of the output shaft between pinion wheel and gear wheel increases gradually; The gear tooth width that matches with output shaft gear wheel and pinion wheel on the input shaft is less than being socketed in the cog thickness of wheel hub of input shaft.
- [claim 4] is according to claim 1 or 2 or 3 described a kind of dynamic balancing measurement machines, it is characterized in that: described gear selecting arrangement comprises and is socketed in the active Option stage that can move vertically on the input shaft, the external peripheral surface that is meshed with the active Option stage on the input shaft is a spline surface, initiatively the inside surface of Option stage is meshed with the outside surface of input shaft, described active Option stage is between two gears, be fixed with driven Option stage by pin on the end face of two of two ends gears on the input shaft, be connected with the shift fork functional unit on the described active Option stage.
- [claim 5] a kind of dynamic balancing measurement machine according to claim 4, it is characterized in that: described shift fork functional unit comprises two shift forks of the correspondence setting that is positioned on the input shaft diametric(al), shift fork is fixed on the pressing fork rack by pin, pressing fork rack is fixed on the connecting rod by pin, connecting rod is socketed in the connecting hole of bracing frame, described bracing frame is fixed on the casing of gear case, and connecting rod is circumscribed with operating grip, and operating grip is positioned at outside the gear case; Described pressing fork rack, bracing frame and connecting rod are positioned at the below of input shaft and output shaft.
- [claim 6] is according to claim 1 or 2 or 3 described a kind of dynamic balancing measurement machines, it is characterized in that: described clutch coupling comprises active clutch and by dynamic clutch, described active clutch is socketed on the main drive shaft, the motor shaft of main drive shaft and electric barring meshes by cone gear, above active clutch, be provided with operating rod, operating rod joins by handle structure and active clutch, described active clutch is in the form of annular discs, end face at active clutch is provided with rectangular teeth, is provided with groove at the external peripheral surface of active clutch; The shape of the described end face that is joined by dynamic clutch and active clutch is identical with the end surface shape of active clutch.
- [claim 7] a kind of dynamic balancing measurement machine according to claim 5, it is characterized in that: described clutch coupling comprises active clutch and by dynamic clutch, described active clutch is socketed on the main drive shaft, the motor shaft of main drive shaft and electric barring meshes by cone gear, above active clutch, be provided with operating rod, operating rod joins by handle structure and active clutch, described active clutch is in the form of annular discs, end face at active clutch is provided with rectangular teeth, is provided with groove at the external peripheral surface of active clutch; The shape of the described end face that is joined by dynamic clutch and active clutch is identical with the end surface shape of active clutch.
- [claim 8] a kind of dynamic balancing measurement machine according to claim 7, it is characterized in that: described catanator includes the driving lever that links to each other with operating rod, driving lever is connected with follower lever by sliding pin, respectively be connected with a rotating shaft on driving lever and the follower lever, be connected with bull stick in the rotating shaft, the end of bull stick is provided with shifting block, and shifting block matches with groove on the active clutch, is provided with spring between driving lever and follower lever.
- [claim 9] according to claim 1 or 2 or 3 described a kind of dynamic balancing measurement machines, it is characterized in that: described input shaft is circumscribed with shaft coupling outside gear case, and described shaft coupling and electric barring are positioned at the outer the same side of gear case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910300292XA CN101487757B (en) | 2009-01-20 | 2009-01-20 | Dynamic balancing measurement machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910300292XA CN101487757B (en) | 2009-01-20 | 2009-01-20 | Dynamic balancing measurement machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101487757A true CN101487757A (en) | 2009-07-22 |
| CN101487757B CN101487757B (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910300292XA Expired - Fee Related CN101487757B (en) | 2009-01-20 | 2009-01-20 | Dynamic balancing measurement machine |
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| Country | Link |
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| CN (1) | CN101487757B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994805A (en) * | 2010-11-15 | 2011-03-30 | 南京高特齿轮箱制造有限公司 | Bidirectional self-disengaging turning gear |
| CN102636312A (en) * | 2012-04-27 | 2012-08-15 | 上海电气电站设备有限公司 | High-speed dynamic balance driving system and control method for large steam turbine rotor |
| CN107588891A (en) * | 2017-10-27 | 2018-01-16 | 中国航发航空科技股份有限公司 | Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device |
-
2009
- 2009-01-20 CN CN200910300292XA patent/CN101487757B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101994805A (en) * | 2010-11-15 | 2011-03-30 | 南京高特齿轮箱制造有限公司 | Bidirectional self-disengaging turning gear |
| CN102636312A (en) * | 2012-04-27 | 2012-08-15 | 上海电气电站设备有限公司 | High-speed dynamic balance driving system and control method for large steam turbine rotor |
| CN107588891A (en) * | 2017-10-27 | 2018-01-16 | 中国航发航空科技股份有限公司 | Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device |
| CN107588891B (en) * | 2017-10-27 | 2019-08-02 | 中国航发航空科技股份有限公司 | Fanjet rotor single-stage disk balance test squirrel-cage flexible balance device |
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| Publication number | Publication date |
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| CN101487757B (en) | 2010-12-08 |
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Granted publication date: 20101208 Termination date: 20170120 |