CN1425858A - Movable rotary rigid coupling - Google Patents
Movable rotary rigid coupling Download PDFInfo
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- CN1425858A CN1425858A CN 03114945 CN03114945A CN1425858A CN 1425858 A CN1425858 A CN 1425858A CN 03114945 CN03114945 CN 03114945 CN 03114945 A CN03114945 A CN 03114945A CN 1425858 A CN1425858 A CN 1425858A
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- bearing
- selfaligning
- floating disc
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Abstract
The movable rotary rigid coupling consists of two rotating fork, four connecting pins and one middle floating disc as well as four radial bearings, four center-regulating bearings and eight rotating pinshafts. The right and the left rotating forks are positioned axially after being captured in the position on shaft extension. The coupling may be used in the connection between two shaft extension coaxially installed in mechanical system, in the connection between two shaft extension with eccentric distance or deflection angle and as the outupt mechanism of planetary reduction gear with less tooth difference. The coupling has strong adaptability to the relative positions of the axes of two connected shafts.
Description
Technical field
The present invention relates to be used to be rigidly connected two coaxial lines axle or the coupling of the diaxon of offset distance, angle of yaw is arranged, particularly a kind of movable rotary rigid coupling.
Background technique
In the engineering, existing coupling mainly contains rigid coupling and elastic coupling flexible coupling two big classes except the Hooks coupling universal coupling that allows the angle transmission.Fixed rigid coupling requires the strict centering of the rotational axis of coupled diaxon, otherwise can produce the additional erection stress that is difficult to determine, the coaxality drift that can not adapt to the variation of transmission system ambient temperature and operating temperature and cause is seldom adopted in important power transmission.The kind of fast coupling mainly contains slide block type, gear type, chain type and Shi Miteshi.The frictional loss of slide block type is big, and mechanical efficiency is low; The quality of intermediate slider is bigger, because the dynamic load that the diaxon offset distance causes is big, therefore the offset distance amount to diaxon has strict restriction, the complex structure of gear type coupling, manufacture cost and maintenance cost height; It is bigger that the contact condition of the gear teeth is influenced by the accuracy of alignment of diaxon, and intensity is difficult to accurate Calculation; The permission journal offset is little, also must carry out the cold conditions of transmission system and hot side-play amount allowable and calculate; Insufficient lubrication can cause the premature wear of the gear teeth and lost efficacy during motion.The chain type coupling is relatively poor to the compensation performance of journal offset, matching gap in the chain link influences the service behaviour of coupling, use less in the engineering, the Shi Miteshi coupling is the connection that is used for the two-parallel axis of big distance, its function is different with the general movable coupling of rigidity, and it can not be used for the occasion of the otional axis coincidence of diaxon.In Shi Miteshi coupling when motion,, eight revolute pairs on four kinematic links are all done 360 ° of revolutions, during the carrying operation frictional loss big, mechanical efficiency is low.Spring column pin formula coupling is to use very wide a kind of coupling in the engineering, and the accuracy of alignment to axis also has higher requirement usually.Under the certain condition of the compression stiffness of elasticity snare and elastic ring and seat interporal lacuna, even disregard a pore size distribution error effect, the bias of axis also is the strong nonlinearity causality for additional radial load.
Summary of the invention
The purpose of this invention is to provide a kind of movable rotary rigid coupling, can realize connection and transmission between the two parts axle spares, also can be used for having connection and transmission between two shaft extensions of offset distance and/or angle of yaw.
Technological scheme of the present invention is as follows:
It comprises; About two transmission forks, four connecting sheets, one I-shaped in the middle of floating disc, four radial bearings, four selfaligning bearings, eight gear pins; First and second driving pin of difference symmetry installation forms drive fit in two holes of Left Drive fork, symmetrical respectively third and fourth gear pin formation drive fit of installing in two holes of right transmission fork; The difference close-fitting is installed radial bearing and selfaligning bearing in the hole of four connecting sheets that shape and size are identical, one end of the installation radial bearing of four connecting sheets inserts respectively in the I-shaped middle floating disc, use four even distribution holes on four gear pins and the I-shaped middle floating disc hinged respectively, thereby make four connecting sheets and I-shaped middle floating disc constitute an assembly; First and second driving pin that Left Drive is stuck respectively from I-shaped in the middle of the left side of two connecting sheets having connected of floating disc pack into and form drive fit the endoporus of two selfaligning bearings, third and fourth driving pin on the right transmission fork forms from the endoporus of two selfaligning bearings is packed on the right side of two connecting sheets having connected with I-shaped centre floating disc into respectively and is slidingly matched; About the endoporus of two transmission forks cooperate with the shaft extension of coupled two parts respectively; After the installation, radial bearing and selfaligning bearing are the monospace state distribution.
Radial bearing and selfaligning bearing also can be in twos state distribution at interval.
The beneficial effect that the present invention has is: it is a kind of single-degree-of-freedom driving mechanism.When two axial lines overlaps or be parallel, belong to single-freedom planar mechanism; When two axial lines intersected or be staggered, accessory had the single-degree-of-freedom spatial mechanism of isolated degree of freedom.Both can be used for the connection between the shaft extension of two parts that coaxial line in the mechanical system installs, also can be used for having offset distance and (or) connection between two shaft extensions of angle of yaw, also can be used as the output mechanism of planetary speed reducer with small tooth number difference.Relative positional accuracy to two shaft extensions during installation does not have strict demand, even have than mistake, can not produce the installation distortion of constitutional detail yet; Movable rotary rigid coupling is a kind of single-degree-of-freedom driving mechanism.Therefore the foozle of constitutional detail can not cause assembly deflections yet, just can not produce additional erection stress yet, thereby has avoided additional power loss, can not cause damage near the bearing the shaft extension yet.Movable rotary rigid coupling involved in the present invention is at present to the strongest a kind of coupling of adaptive capacity of the axis relative position of coupled diaxon.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the sectional view of another kind of structure.
Embodiment
As shown in Figure 1 and Figure 2, comprise about 7,8,9,10, one of 1,2, four connecting sheets of two transmission forks I-shaped in the middle of floating disc 23, four 15,16,17,18, eight gear pins 3,4,5,6,19,20,21,22 of 11,12,13,14, four selfaligning bearings of radial bearing; The difference symmetry is installed first and second driving pin 3,4 and is formed drive fits in two holes of Left Drive fork 1, and symmetrical respectively third and fourth gear pin 5,6 of installing forms drive fits in two holes of right transmission fork 2; The difference close-fitting is installed radial bearing 11,12,13,14 and selfaligning bearing 15,16,17,18 in the hole of four connecting sheets 7,8,9,10 that shape and size are identical, one end of the installation radial bearing of four connecting sheets inserts respectively in the I-shaped middle floating disc 23, use four even distribution holes on four gear pins 19,20,21,22 and the I-shaped middle floating disc hinged respectively, thereby make four connecting sheets and I-shaped middle floating disc constitute an assembly; First and second driving pin 3,4 on the Left Drive fork 1 respectively from I-shaped in the middle of the left side of two connecting sheets 7,8 of having connected of floating disc 23 pack into and form drive fit the endoporus of two selfaligning bearings 15,16, third and fourth driving pin 5,6 on the right transmission fork 2 forms from the endoporus of two selfaligning bearings 17,18 is packed on the right side of two connecting sheets 9,10 of having connected with I-shaped centre floating disc 23 into respectively and is slidingly matched; About the endoporus 24,25 of two transmission forks cooperate with the shaft extension of coupled two parts respectively; After the installation, radial bearing 11,12,13,14 and selfaligning bearing 15,16,17,18 are the monospace state distribution.
As shown in Figure 3, radial bearing 11,12,13,14 and selfaligning bearing 15,16,17,18 also can be in twos state distribution at interval.
Movable rotary rigid coupling is not only applicable to install the machine driven system of posterior axis fixed-site, is applicable to the distance of two axial lines when operation and the machine driven system that angle changes yet.When the dead in line of coupled diaxon, there is not relative movement between each member of mechanism, left and right sides transmission fork 1,2 turns round synchronously.When skew takes place for the axis of coupled diaxon, realize automatic adjusting, amplitude corresponding increase of swinging relatively with relative swing between the middle I-shaped floating disc 23 with the increase of axis offset distance by four connecting sheets 7,8,9,10.The mean speed of every turn over of left and right sides transmission fork 1,2 equates, and the transient speed difference with the increase of axis offset distance also and corresponding increase.By analysis, when the turning radius ratio of offset distance and transmission fork upper pin was 1%, corresponding instantaneous maximum (top) speed difference was 0.05%.When the axis of coupled diaxon deflected, four connecting sheets 7,8,9,10 rocked under the driving pin effect accordingly together with the I-shaped floating disc 23 in centre, to adapt to the transmission requirement under the axis tilt condition.When coupling is worked, the two connecting sheet tensions that the stress of connecting sheet is always relative and all the other two relative connecting sheet pressurizeds.
Relative position between four connecting sheets and the middle floating disc also can be made layout as shown in Figure 3, radial bearing 11,12,13,14 and selfaligning bearing 15,16,17,18 are in twos state distribution at interval, for the class connecting mode, the stress of four connecting sheets 7,8,9,10 is not the just whole pressurizeds of whole tensions, decides with the gyratory directions of driving shaft.
Claims (3)
1. movable rotary rigid coupling is characterized in that it comprises: about two transmission forks (1,2), four connecting sheets (7,8,9,10), one I-shaped in the middle of floating disc (23), four radial bearings (11,12,13,14), four selfaligning bearings (15,16,17,18), eight gear pins (3,4,5,6,19,20,21,22); Difference symmetry first and second driving pin of installation (3,4) forms drive fit in two holes of Left Drive fork (1), symmetrical respectively third and fourth gear pin (5,6) formation drive fit of installing in two holes of right transmission fork (2); The difference close-fitting is installed radial bearing (11,12,13,14) and selfaligning bearing (15,16,17,18) in the hole of four connecting sheets (7,8,9,10) that shape and size are identical, one end of the installation radial bearing of four connecting sheets inserts respectively in the I-shaped middle floating disc (23), use four gear pins (19,20,21,22) hinged respectively, thereby make four connecting sheets and I-shaped middle floating disc constitute an assembly with four even distribution holes on the I-shaped middle floating disc; First and second driving pin (3,4) on the Left Drive fork (1) respectively from I-shaped in the middle of the left side of two connecting sheets (7,8) of having connected of floating disc (23) pack into and form drive fit the endoporus of two selfaligning bearings (15,16), third and fourth driving pin on the right transmission fork (2) (5,6) forms from the endoporus of two selfaligning bearings (17,18) is packed on the right side of two connecting sheets (9,10) of having connected with I-shaped centre floating disc (23) into respectively and is slidingly matched; About the endoporus (24,25) of two transmission forks cooperate with the shaft extension of coupled two parts respectively; After the installation, radial bearing (11,12,13,14) and selfaligning bearing (15,16,17,18) are the monospace state distribution, or radial bearing (11,12,13,14) and selfaligning bearing (15,16,17,18) are in twos state distribution at interval.
2. movable rotary rigid coupling according to claim 1 is characterized in that: said radial bearing (11,12,13,14) is deep groove ball bearing or roller bearing or needle bearing or sliding bearing.
3. movable rotary rigid coupling according to claim 1 is characterized in that: said selfaligning bearing (15,16,17,18) is selfaligning ball bearing or selfaligning roller bearing or sliding type spherical hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114945 CN1265106C (en) | 2003-01-15 | 2003-01-15 | Movable rotary rigid coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114945 CN1265106C (en) | 2003-01-15 | 2003-01-15 | Movable rotary rigid coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1425858A true CN1425858A (en) | 2003-06-25 |
| CN1265106C CN1265106C (en) | 2006-07-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03114945 Expired - Fee Related CN1265106C (en) | 2003-01-15 | 2003-01-15 | Movable rotary rigid coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265106C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428286A (en) * | 2009-08-19 | 2012-04-25 | 宝马股份公司 | Torque transmission device |
| CN103032478A (en) * | 2013-01-21 | 2013-04-10 | 吴实渊 | Spatial flexible shaft coupling |
| CN103486143A (en) * | 2013-08-23 | 2014-01-01 | 翟俊龙 | Radial spherical plain bearing coupling |
| CN104888890A (en) * | 2015-06-16 | 2015-09-09 | 南京高精齿轮集团有限公司 | Power transmission system for grinding roller pairs of rolling and grinding machine |
| CN104912949A (en) * | 2015-06-16 | 2015-09-16 | 南京高精齿轮集团有限公司 | Multi-DOF (degree of freedom) high-torque coupling |
| CN109882513A (en) * | 2019-04-03 | 2019-06-14 | 株洲时代新材料科技股份有限公司 | A kind of connector |
-
2003
- 2003-01-15 CN CN 03114945 patent/CN1265106C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428286A (en) * | 2009-08-19 | 2012-04-25 | 宝马股份公司 | Torque transmission device |
| CN102428286B (en) * | 2009-08-19 | 2015-08-05 | 宝马股份公司 | Torque transmitter |
| CN103032478A (en) * | 2013-01-21 | 2013-04-10 | 吴实渊 | Spatial flexible shaft coupling |
| CN103486143A (en) * | 2013-08-23 | 2014-01-01 | 翟俊龙 | Radial spherical plain bearing coupling |
| CN104888890A (en) * | 2015-06-16 | 2015-09-09 | 南京高精齿轮集团有限公司 | Power transmission system for grinding roller pairs of rolling and grinding machine |
| CN104912949A (en) * | 2015-06-16 | 2015-09-16 | 南京高精齿轮集团有限公司 | Multi-DOF (degree of freedom) high-torque coupling |
| CN104888890B (en) * | 2015-06-16 | 2017-06-16 | 南京高精齿轮集团有限公司 | The power-transmission system of grinding roller pair in rolling grinder |
| CN104912949B (en) * | 2015-06-16 | 2018-01-30 | 南京高精齿轮集团有限公司 | Multiple degrees of freedom big torque clutch |
| CN109882513A (en) * | 2019-04-03 | 2019-06-14 | 株洲时代新材料科技股份有限公司 | A kind of connector |
| CN109882513B (en) * | 2019-04-03 | 2024-04-05 | 株洲时代新材料科技股份有限公司 | Connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1265106C (en) | 2006-07-19 |
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Granted publication date: 20060719 Termination date: 20100222 |