CN103994887B - The research device of universal joint variable speed - Google Patents
The research device of universal joint variable speed Download PDFInfo
- Publication number
- CN103994887B CN103994887B CN201410205678.3A CN201410205678A CN103994887B CN 103994887 B CN103994887 B CN 103994887B CN 201410205678 A CN201410205678 A CN 201410205678A CN 103994887 B CN103994887 B CN 103994887B
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- universal joint
- pulley
- take
- variable speed
- wheels
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Abstract
The research device that the invention provides a kind of universal joint variable speed, is characterized in that, comprising: drive division is installed; Skew display part and fixed support portion. Wherein, drive division being installed has and is arranged at two the axle adapter sleeves of universal joint two ends for permanent universal joint; Two main shafts that are connected with axle adapter sleeve; Two gear wheels on two main shafts; Two actinobacillus wheels of the both sides of two gear wheels, engage with two gear wheels by two pinions; And the take-up pulley that drives two actinobacillus wheels to rotate by two drive lines. Skew display part has slide block and guide rail, and guide rail is between take-up pulley and actinobacillus wheel, and slide block and guide rail are slidably connected, and slide block has two directive wheels, and two drive lines, through the inner side cabling of two directive wheels, are connected on take-up pulley afterwards. The angular adjustment member of fixed support portion. The present invention can demonstrate the variable speed of universal joint intuitively.
Description
Technical field
The research device that the present invention relates to a kind of universal joint variable speed characteristic, belongs to mechanical field.
Background technology
Universal joint is to be widely used on the mechanical fields such as automobile, lathe. Hooke's joint toolHave the characteristic of variable speed, this variable speed refers to that the angle between driving shaft and driven shaft is notWhen zero degree, if driving shaft rotates with constant angular velocity, driven shaft is rotating angular speed inequality in a weekEven, driven shaft is sometimes fast and sometimes slow according to a kind of rule, and single Hooke's joint is in the time having angleThe variable speed of transmission. And this variable speed is to be with the naked eye difficult to find. By mathematics meterCalculation, software emulation or experiment can be found the variable speed of Hooke's joint. And it is conventional at presentVerify the method for the variable speed of Hooke's joint: measure respectively initiatively with tachymeter simultaneouslyAxle is followed the rotating speed of moving axis, verifies Hooke's joint variable speed by the rotating speed that compares diaxonCharacteristic, this method needs special equipment, directly perceived not, and equipment is valuable, volumeInstall and use inconvenience greatly.
The variable speed of universal joint has explanation in books, but does not all have for most peopleThere is one to be familiar with intuitively, cause understanding to be got up more difficult. Especially in some college coursesFace, does not study the corresponding experimental provision of universal joint variable speed, causes part student to universalThe correct understanding of joint this characteristic neither one of variable speed. The testing arrangement of specialty is directly to measureDriving shaft is followed the rotating speed of moving axis, and then relatively the rotating speed of diaxon verifies that Hooke's joint is notThe characteristic of constant speed. The testing arrangement of specialty only has data, is unfavorable for that people have intuitively universal jointUnderstanding.
Summary of the invention
The object of the present invention is to provide one can give expression to intuitively universal joint variable speedFeature, help student can better understand the device of the feature of universal joint variable speed.
The technical solution adopted in the present invention is as follows:
A research device for universal joint variable speed, for studying the variable speed of universal joint,It is characterized in that, comprising: universal joint is installed and is driven for the rotation of universal joint provides the installation of powerMoving portion; The skew demonstration showing for universal joint variable speed being amplified and be converted into skewPortion; And fixed support portion fixing and support installation drive division and skew display part.
Wherein, drive division being installed has and is arranged at universal joint two ends for two of permanent universal jointIndividual axle adapter sleeve; Two main shafts that are connected with two axle adapter sleeves respectively; Be connected to twoTwo gear wheels on main shaft; Be positioned at two actinobacillus wheels of the both sides of two gear wheels, put for twoLine wheel engages with two gear wheels by two pinions respectively; And pass through by two actinobacillus wheelsTwo drive lines of drawing drive two take-up pulleies that actinobacillus wheel rotates simultaneously. Skew display part toolHave slide block and guide rail, guide rail is between take-up pulley and actinobacillus wheel, and slide block and guide rail are slidably connected,Slide block has two directive wheels, and two drive lines contact with two directive wheels respectively and through twoThe inner side cabling of individual directive wheel, is connected on take-up pulley afterwards.
Fixed support portion comprises institute between intermediate rotary shaft for regulating universal joint and both sides rotating shaftThe angular adjustment member that is angle, angular adjustment member comprises: intermediate support plate and respectively with thisIntermediate support plate be connected and for supporting two the first supports of two axle adapter sleeves, two firstAngle between support and intermediate support plate is all adjustable.
In addition, the research device of universal joint variable speed of the present invention, can also have like thisFeature: wherein, take-up pulley has left take-up pulley, right take-up pulley and damping mechanism, left receiptsThe bolt hole that is equipped with equal distribution on line wheel, right take-up pulley is secured by bolts in left take-up pulleyOn. Fixed support portion has take-up pulley support, and damping mechanism is arranged on take-up pulley support outsideOn axle, provide damping to take-up pulley.
In addition, the research device of universal joint variable speed of the present invention, can also have suchFeature: wherein, fixed support portion has two bracing frames, on two bracing frames, be equipped with respectively withTwo main shafts that two axle adapter sleeves connect, two unwrapping wire wheel shafts that are connected with two main shafts, andTwo gear wheels of two main shaft connections, two pinions that are connected with two unwrapping wire wheel shafts, andAnd on one of them main shaft, synchronous pulley is housed, the clockwork spring for accumulation of energy is housed on another main shaftSpring fixed tray.
In addition, the research device of universal joint variable speed of the present invention, can also have suchFeature: wherein, between axle adapter sleeve and universal joint and main shaft for removably connecting.
In addition, the research device of universal joint variable speed of the present invention, can also have suchFeature: wherein, skew display part also has the penholder being connected on slide block; Be arranged on penholderPaintbrush; For the round paper roll of drawing paper is installed; Connect the round paper roll axle of circle paper roll;Prop up the round paper roll support that holds round paper roll axle; And be rotatably installed in round paper roll supportThe upper synchronous pulley being fixedly linked with circle paper roll axle, paintbrush contacts with drawing paper, Timing BeltWheel is connected by Timing Belt with main shaft.
In addition, the research device of universal joint variable speed of the present invention, can also have suchFeature: wherein, on intermediate support plate, be connected with two protractors, two protractors separately inThe heart is positioned at the intermediate rotary shaft of universal joint and two centers of rotation of both sides rotating shaft at intermediate support plateOn orthographic projection place, on two the first supports, be all connected with the intermediate rotary shaft that is used to indicate universal jointPointer with both sides angle that rotating shaft is.
Invention effect and effect
According to the research device of universal joint variable speed of the present invention, owing to having adopted gear wheel bandMoving pinion amplifies the outer corner difference of universal joint, utilizes take-up pulley that rotation is converted into line simultaneouslyLong, and be with movable slider side-to-side movement by the length of take-up, thus naked eyes are very indistinguishableUniversal joint variable speed is converted into the reciprocating motion that is easy to the slide block of observing.
Brief description of the drawings
Fig. 1 is the oblique view of the research device of universal joint variable speed of the present invention;
Fig. 2 is the top view of this device of research device of universal joint variable speed of the present invention;
Fig. 3 is the right view of this device of research device of universal joint variable speed of the present invention;
Fig. 4 is the A-A cutaway view of Fig. 3; And
Fig. 5 is the part axonometric drawing after addition angle apparatus.
Reference numeral:
10, the research device of universal joint variable speed; 11, take-up pulley; 12, steel wire rope; 13, slidingPiece; 14, paintbrush; 15, justify paper roll; 16, Timing Belt; 17, the first actinobacillus wheel; 18,Pinion; 19, the first main shaft; 20, universal joint; 21, the second main shaft; 22, canine toothWheel; 23, the second actinobacillus wheel; 24, axle adapter sleeve; 25, king-bolt; 26, stove bolt;27, clockwork spring mechanism; 28, handle; 29, the first pointer; 30, the first protractor;31, the second protractor; 32, the second pointer; 33, unwrapping wire wheel shaft; 34, the first bracing frame;35, intermediate support plate; 36, guide supporting piece; 37, the first directive wheel; 111, left take-upWheel; 112, right take-up pulley; 341, inner support; 342 support arms; 343, right support plate;344, left support plate; 39, synchronous pulley
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described:
Fig. 1 is the oblique view of the research device of universal joint variable speed of the present invention, and Fig. 2 is thisThe top view of this device of research device of the universal joint variable speed of invention, as Fig. 1 and Fig. 2 instituteShow: the first main shaft 19 of the research device 10 of universal joint variable speed and the second main shaft 21 itBefore be connected with universal joint 20, the first main shafts 19 or the second main shaft 21 and the first actinobacillus wheel 17 orBetween the unwrapping wire wheel shaft 33 that the second actinobacillus wheel 23 connects, be connected with pinion 18 with gear wheel 22,Make that the first main shaft 19 or the second main shaft 21 rotating speeds are slow and unwrapping wire wheel shaft 33 rotating speeds are fast, hereThat the outer corner difference of diaxon is amplified, the canine tooth that the first main shaft 19 or the second main shaft 21 are selected hereTake turns 22 moduluses and be 1, tooth is 52, the pinion 18 that the unwrapping wire wheel shaft 33 use numbers of teeth are 16. Figure3 Fig. 3 are the right view of this device of research device of universal joint variable speed of the present invention, Fig. 4For the A-A cutaway view of Fig. 3. As shown in Figure 3 and Figure 4, two pairs of main shaft unwrapping wire wheel shafts 33 are logicalCross two the first bracing frames 34 fixing, the first bracing frame 34 comprises support arm 342, inner support341 and two gripper shoes, inner support 341 is fixed in gripper shoe 343 with support arm 342.Two gripper shoes are connected with intermediate support plate 35 use king-bolts 25 and stove bolt 26, left support plate344 are fixed on main support. Unclamp the stove bolt 26 on intermediate support plate 35, can makeRight support plate 343 rotates arbitrarily within the specific limits with intermediate support plate 35. One of them is putOn wire wheel axis 33, there is clockwork spring accumulating mechanism. On unwrapping wire wheel shaft 33, actinobacillus wheel is installed, putsThe effect of line wheel is that the angle that axle turns over, is transformed into the arc length turning over the variable of research, thisIn the internal diameter of actinobacillus wheel can be 150mm. In the time that the angle of two main shafts is 30 °, two unwrapping wireLine length the most about poor 17.5mm that wheel is emitted.
Take-up pulley 11 is divided into two of left and right, and left take-up pulley 111 is connected with key with axle, right take-upWheel 112 can relatively rotate with axle on axle. On left take-up pulley 111, there is a bolt, right take-up pulleyOn 112, have several corresponding holes, hole corresponding to bolt precession just can allow two take-up pulleies synchronously revolveTurn. Axle one end of take-up pulley 11 is provided with one handle 28, and the other end of axle has damping mechanism.Damping mechanism is arranged on the axle in take-up pulley support outside, by compressing tablet, spring, friction plate and spiral shellFemale composition that waits, the moment compresses, and gives axle damping.
Arranging of steel wire rope 12. One end of steel wire rope 12 is fixed on actinobacillus wheel, around some circles,Then steel wire rope 12 is drawn from the bottom of actinobacillus wheel, walks around the first guiding of guide supporting piece 36Wheel 37 enters slide block 13, then turns round at the second directive wheel place of slide block 13, finally entersThe bottom of take-up pulley 11, and be fixed on take-up pulley 11.
Adjust the position of slide block 13. The outward winding bolt of right take-up pulley 112, rotates right take-up pulley112, make slide block 13 slide into correct position, swivel bolt, makes bolt insert left take-up pulley111 hole, the position that so just can adjust slide block 13.
Fig. 5 is the part axonometric drawing after addition angle apparatus, as shown in Figure 5, and the first protractor30 and second protractor 31 be all fixedly connected on intermediate support plate 35, and two angulationsThe center of rotation of Qi center respectively and between the intermediate rotary shaft of universal joint 20 and both sides rotating shaft existsOrthographic projection on intermediate support plate overlaps, the zero graduation line of protractor and the central shaft of intermediate rotary shaftLine parallel. The first pointer 29 and the second pointer 32 are in intermediate rotary shaft and the both sides rotating shaft of universal jointWhile being positioned on same axis, refer to respectively on 90 degree graduation marks of two protractors.
When test diaxon have angle gearratio characteristic time, first unclamp universal joint 20 timesStove bolt 26, then taking a king-bolt 25 as rotating shaft, rotation with this large spiral shell select 25The inner support of one side, has between the inner support of main shaft one side of clockwork spring and lower curtate support and isRemovably connect. And observe corresponding protractor, adjust back-up block border and form at protractorAngle, be the angle of adjusting universal joint 20 diaxons, then tighten stove bolt 26. Work as surveyWhen examination diaxon parallel offset certain distance, unclamp two stove bolts 26 in left and right simultaneously, andTaking two king-bolts 25 as rotating shaft, simultaneously with two clockwise or below being rotated counterclockwisePiece back-up block, and observe below protractor, rotation equal angular, realizes two universal joints 20Skew.
Change universal joint 20. First unclamp the fastening bolt of two side shaft adapter sleeves 24, by twoAxle adapter sleeve 24 is pushed aside towards two actinobacillus wheel directions, can take off the universal joint 20 of testing;The diaxon of the universal joint 20 of needs test is alignd with the diaxon of axle adapter sleeve 24, then by axleAdapter sleeve 24 moves to actinobacillus wheel rightabout, then tightens fastening bolt, changes universal joint20 is complete.
Clockwork spring mechanism 27 is with the effect of damping mechanism. Make take-up pulley when rotating take-up pulley 11When 11 take-up, take-up pulley 11 can be with movable slider 13 by steel wire rope 12, universal joint 20,Circle paper roll 15 devices such as grade, and actinobacillus wheel is emitted line, now the active force of steel wire rope 12 is behavedThe power of giving take-up pulley 11, the resistance of steel wire rope 12 is clockwork spring mechanism, is arranged on clockwork springClockwork spring in spring fixed bin is to the spring force of actinobacillus wheel; When rotating backward take-up pulley 11While making take-up pulley 11 emit line, clockwork spring is because restoring force rotates actinobacillus wheel, actinobacillus wheelTake-up, now the active force of steel wire rope 12 is the restoring force of clockwork spring to actinobacillus wheel, steel wireRope 12 resistance is to be arranged on damping mechanism on the take-up wheel shaft resistance to take-up pulley 11. ThisSample, has ensured that steel wire rope 12 is always in tensioned state.
In the time of trace, the second actinobacillus wheel 23 rotating speeds fast time slide block 13 to left movement, whenThe second actinobacillus wheel 23 rotating speeds are when slow, and slide block 13 moves right.
When universal joint 20 diaxons are angled time, rotate take-up pulley 11, now, logicalCross the transmission of steel wire rope 12 and power transmission shaft, by the feature of universal joint 20 variable speeds, convert toThe reciprocating phenomenon of slide block 13 on slide block device, is provided with a support on slide block 13, drawPen 14 can be rack-mount arbitrarily, and in the front of paintbrush 14, a circle paper is installedCylinder 15, on circle paper roll 15, volume has some level and smooth some circle paper, and nib is rolled facing to circle paperCylinder 15 axle center are pressed on paper, and paintbrush 14 moves along with the movement of slide block 13, meanwhile, theBetween one main shaft 19 and synchronous pulley 39, be connected by Timing Belt 16, thereby drive circle paper to rollCylinder 15 rotations, now paintbrush 14 curve of just painting out on paper, and this curve canThe drive characteristic of reflection universal joint variable speed characteristic. In the time that universal joint 20 diaxons are 0 degree,Now universal joint 20 diaxon constant speed, slide block 13 shows as static phenomenon, the transmission of painting outAlso be straight line than curve. The transmission curve drawing by paintbrush 14, we can seeIt is the curve of a similar SIN function. By adjusting the different angle of universal joint 20 diaxons,We can obtain under different angles, the curve map forming, and by the amplitude of curve, weCan draw, diaxon angle is larger, and variable speed characteristic is larger; By on curve certain a bit,Can draw when certain is a bit, can compare diaxon and turn over the size of angle, also can compareThe rotating speed size of diaxon.
Embodiment effect and effect
According to the research device of universal joint variable speed of the present invention, owing to having adopted gear wheel bandMoving pinion amplifies the outer corner difference of universal joint, utilizes take-up pulley that rotation is converted into line simultaneouslyLong, and be with movable slider side-to-side movement by the length of take-up, thus naked eyes are very indistinguishableUniversal joint variable speed is converted into the reciprocating motion that is easy to the slide block of observing.
In addition, because take-up pulley is divided into two of left and right, be therefore convenient to adjust before use slide blockInitial position.
In addition, due to intermeshing by gear wheel and pinion between main shaft and actinobacillus wheel, because ofThis has amplified universal joint variable speed, makes actinobacillus wheel take-up more, by universal joint variable speedWhat show is more obvious.
In addition, owing to being also provided with paintbrush on slide block, before paintbrush, be provided with drawing paperCylinder, therefore can quantitative the recording of form with curve by universal joint variable speed,Meanwhile, owing to having used the structure of protractor and pointer, therefore between the axle of universal joint, beAlso record accurately of angle, the two acting in conjunction, has facilitated follow-up quantitative calculating.
Claims (6)
1. a research device for universal joint variable speed, for studying the variable speed of universal joint, is characterized in that, comprising:
Described universal joint is installed and is provided the installation drive division of power for the rotation of described universal joint;
Be offset for universal joint variable speed being amplified and being converted into the skew display part showing; And
Fix and support the fixed support portion of described installation drive division and described skew display part,
Wherein, described installation drive division has and is arranged at two the axle adapter sleeves of described universal joint two ends for fixing described universal joint; Two main shafts that are connected with two described axle adapter sleeves respectively; Be connected to two gear wheels on two described main shafts; Be positioned at two actinobacillus wheels of the both sides of described two gear wheels, described two actinobacillus wheels engage with described two gear wheels by two pinions respectively; And drive described two take-up pulleies that actinobacillus wheel rotates simultaneously by two drive lines of being drawn by two described actinobacillus wheels,
Described skew display part has slide block and guide rail, described guide rail is between described take-up pulley and actinobacillus wheel, described slide block and described guide rail are slidably connected, described slide block has two directive wheels, two described drive lines contact with described two directive wheels respectively and through the inner side cabling of two directive wheels, be connected in afterwards on described take-up pulley
Described fixed support portion comprise between intermediate rotary shaft for regulating universal joint and both sides rotating shaft be the angular adjustment member of angle, described angular adjustment member comprises: intermediate support plate be connected with this intermediate support plate respectively and for supporting two the first supports of two described axle adapter sleeves, the angle between described two the first supports and described intermediate support plate is all adjustable.
2. the research device of universal joint variable speed according to claim 1, is characterized in that:
Wherein, described take-up pulley has left take-up pulley, right take-up pulley and damping mechanism, is equipped with the screw hole of equal distribution on described left take-up pulley, and described right take-up pulley is fixed on described left take-up pulley by screw,
Described fixed support portion has take-up pulley support, and described damping mechanism is arranged on the axle in described take-up pulley support outside, damping is provided to described take-up pulley.
3. the research device of universal joint variable speed according to claim 1, is characterized in that:
Wherein, described fixed support portion has two bracing frames, two pinions that two main shafts that are connected with described two axle adapter sleeves, two unwrapping wire wheel shafts that are connected with described two main shafts, two gear wheels that are connected with described two main shafts are housed respectively on described two bracing frames, are connected with described two unwrapping wire wheel shafts, and on one of them main shaft, synchronous pulley is housed, the clockwork spring fixed disk for accumulation of energy is housed on another main shaft.
4. the research device of universal joint variable speed according to claim 1, is characterized in that:
Wherein, between described axle adapter sleeve and described universal joint and main shaft for removably connecting.
5. the research device of universal joint variable speed according to claim 3, is characterized in that:
Wherein, described skew display part also has the penholder being connected on described slide block; Be arranged on the paintbrush on described penholder; For the round paper roll of drawing paper is installed; Connect the round paper roll axle of described round paper roll; Support the round paper roll support of described round paper roll axle; And be rotatably installed in the synchronous pulley being fixedly linked with described round paper roll axle on described round paper roll support, and described paintbrush contacts with described drawing paper, and described synchronous pulley is connected by Timing Belt with the described main shaft that synchronous pulley is housed.
6. the research device of universal joint variable speed according to claim 1, is characterized in that:
Wherein, on described intermediate support plate, be connected with two protractors, orthographic projection place of two centers of rotation of the intermediate rotary shaft that is centered close to described universal joint separately of described two protractors and both sides rotating shaft on described intermediate support plate, the zero graduation line of described two protractors is parallel with the center line of the intermediate rotary shaft of described universal joint simultaneously, is all connected with the pointer of the intermediate rotary shaft and the both sides angle that rotating shaft is that are used to indicate universal joint on described two the first supports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205678.3A CN103994887B (en) | 2014-05-15 | 2014-05-15 | The research device of universal joint variable speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205678.3A CN103994887B (en) | 2014-05-15 | 2014-05-15 | The research device of universal joint variable speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103994887A CN103994887A (en) | 2014-08-20 |
| CN103994887B true CN103994887B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410205678.3A Expired - Fee Related CN103994887B (en) | 2014-05-15 | 2014-05-15 | The research device of universal joint variable speed |
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| CN2287326Y (en) * | 1996-12-23 | 1998-08-05 | 武淑芬 | Universal direction transmission demonstrator |
| CN201277277Y (en) * | 2008-10-30 | 2009-07-22 | 杭州正强万向节有限公司 | Gimbal joint assembly |
| CN102175375A (en) * | 2011-01-27 | 2011-09-07 | 成都斯瑞工具科技有限公司 | Instrument for measuring startup torque, swing torque and slippage force of constant-velocity universal joint assembly |
| CN102654432A (en) * | 2012-04-25 | 2012-09-05 | 上海交通大学 | Test table for five-function test of driving shaft assembly of constant velocity universal joint |
| CN102789735A (en) * | 2012-08-10 | 2012-11-21 | 无锡商业职业技术学院 | Cross axle transmission experiment table used for teaching |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039677A (en) * | 2006-08-09 | 2008-02-21 | Ntn Corp | Method for detecting abnormality of uniform universal coupling |
| JP2008232858A (en) * | 2007-03-20 | 2008-10-02 | Ntn Corp | Testing device for constant velocity universal joint, and testing method for constant velocity universal joint |
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2014
- 2014-05-15 CN CN201410205678.3A patent/CN103994887B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287326Y (en) * | 1996-12-23 | 1998-08-05 | 武淑芬 | Universal direction transmission demonstrator |
| CN201277277Y (en) * | 2008-10-30 | 2009-07-22 | 杭州正强万向节有限公司 | Gimbal joint assembly |
| CN102175375A (en) * | 2011-01-27 | 2011-09-07 | 成都斯瑞工具科技有限公司 | Instrument for measuring startup torque, swing torque and slippage force of constant-velocity universal joint assembly |
| CN102654432A (en) * | 2012-04-25 | 2012-09-05 | 上海交通大学 | Test table for five-function test of driving shaft assembly of constant velocity universal joint |
| CN102789735A (en) * | 2012-08-10 | 2012-11-21 | 无锡商业职业技术学院 | Cross axle transmission experiment table used for teaching |
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| Title |
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| "万向节在转向与传动中的作用";王文;《驾驶园》;20131115(第11期);第76-77页 * |
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