CN100344893C - Corner radial coupler - Google Patents
Corner radial coupler Download PDFInfo
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- CN100344893C CN100344893C CNB2005100707761A CN200510070776A CN100344893C CN 100344893 C CN100344893 C CN 100344893C CN B2005100707761 A CNB2005100707761 A CN B2005100707761A CN 200510070776 A CN200510070776 A CN 200510070776A CN 100344893 C CN100344893 C CN 100344893C
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- annulus
- connecting rod
- tie
- disc
- hole
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- 230000000712 assembly Effects 0.000 claims abstract description 15
- 238000000429 assembly Methods 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 abstract description 24
- 230000008878 coupling Effects 0.000 abstract description 23
- 238000010168 coupling process Methods 0.000 abstract description 23
- 238000005859 coupling reaction Methods 0.000 abstract description 23
- 238000006073 displacement reaction Methods 0.000 abstract description 19
- 230000007246 mechanism Effects 0.000 description 25
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000006880 cross-coupling reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The present invention relates to a radial corner coupling which is provided with two connecting discs which are correspondingly arranged left and right; a big, a middle and a small circular rings which are concentric, and each two adjacent circular rings are in movable fit; the big, middle and small circular ring are respectively and symmetrically fixed with two web plate assemblies; each web plate assembly is connected with a connecting rod; the web plate assembly is connected with the connecting rod by that a pin shaft is connected with a pin connection hole on the connecting rod via a pin connection hole on the web plate assembly. The two connecting discs are respectively provided with three evenly distributed connecting holes, three connecting rods which are in the interval positions and are connected with the web plate assemblies are in one group; two groups of connecting rods are respectively connected with the two connecting discs; each connecting rod is connected with each connecting disc by that a connecting shaft is connected with a corresponding connecting hole on each connecting disc via a connecting on each connecting rod. The distances h from the centers of the pin connection holes on all the web plate assemblies to the centers of the circular rings are the same; the distances j from the centers of the connecting holes on all the connecting discs to the centers of all the connecting disc are the same and are the same as the distances h from the centers of the pin connection holes on all the web plate assemblies to the centers of the circular rings. The present invention can satisfy the requirement of large radial motion displacement, adapts to the application occasions of high speed and high power and can satisfy the requirement of corner displacement.
Description
Technical field
The present invention relates to coupling.
Background technique
Coupling has a wide range of applications in mechanical transmission, and it can give another axle with the motion and the transmission of power of an axle, is a kind of important motion coupling member.It is that the velocity ratio Ying Heng of diaxon is a constant that the basic exercise of coupling requires.Coupling commonly used, as tooth-like, chain type, spring formula, membrane type, tyre type, spring column pin formula etc., all can realize simultaneously axially, radially with the corner relative movement, still, the radially maximum compensate for displacement that can realize generally is no more than 6.3mm.Another kind of planar linkage formula coupling, as sliding cross coupling, Schmit (Shi Mite) coupling, what select for use respectively is lanar four rod mechanism and plane six bar mechanism, is the radially coupling of a class special use, can realize bigger radially relative movement displacement.Sliding cross coupling can be realized maximum radial displacement y
Max=0.4d, d are shaft diameter, because middle crosshead shoe can produce big inertial force in movement process, so, be applicable to the low speed occasion.China Patent No. is to disclose a kind of movable rotary rigid coupling in 03228230.3 the patent of invention specification, though this invention is more intense to the adaptive capacity of coupled diaxon, is not suitable at a high speed and heavily loaded occasion.
And in practical engineering application, have that many occasions need at a high speed, the coupling of high-power and big radial displacement deviation.As the transmission system of electric train, motor output shaft is by break-in of one-level cone gear and deceleration, drives the train wheel of a side by splined, the rotating speed height, and the power of transmission is big.Owing to the unequal factor of rail, the displacement that can produce Vertical direction between train wheel and the motor output shaft is radial displacement to train in the process of moving, and maximum can reach 20mm.If direct rigid joint then can produce the gap between splined shaft and the train wheel in Bevel Gear Drive, other part also can produce additional load, and this is obviously unfavorable to running at high speed.On the warship of electronic and internal-combustion engine combination drive, also there are same problem in internal-combustion engine and the transmission system that drives between the propeller cavitation.Again such as the motion of two rolls on the rubber milling train, on existing machine, employing be that two gears rotate with two roll mandrels respectively by a pair of long gear of driven by motor, thereby make the rolling rubber of two roll rotation.When rolling rubber thickness changes, need to regulate the centre distance of two rolls, the centre distance of two gears also changes thereupon, so just makes to produce the gap between two gears.Also there is same problem in the motion of dyeing machine topping roll.
Summary of the invention
The objective of the invention is to propose the corner radial coupler that a kind of energy satisfies big radial motion displacement request and can be fit to the high-speed high-power application.Further purpose of the present invention is that above-mentioned corner radial coupler can satisfy the requirement of corner displacement.
General plotting of the present invention is as follows: make the radially coupling of being made up of planar linkage can adapt to the high-speed motion occasion, key is to make the inertial force energy of member in movement process self balance in the mechanism, and the mechanism of symplex structure can satisfy this requirement.On the other hand, for satisfying the high-power applications needs, can select the multi-rod planar linkage for use.
Fig. 1 is a kind of symplex structure plane 12 connecting rod mechanism movement sketches.Member x and member y are two side links of mechanism, and are two three submembers, respectively as the motion input shaft and the output shaft of coupling.Satisfy between the yardstick of member x and member y
And,
With
Between become 120 ° of distributions respectively,
With
Between also become 120 ° of distributions respectively.Member e is called connecting rod, and their length all equates.Member z, z ' and z are " at B
0Point constitutes compound hinge, also claims the composite rotation pair, and the length of three members equates respectively, and B
0Point is respectively member z, z ' and the z " mid point of length.Can prove that by mechanics plane 12 linkage mechanisms of this symplex structure can guarantee between member x and the member y that constant ratio is 1, promptly constant constant speed in movement process; B
0The movement velocity perseverance of point is 0; As two frame point A
0And C
0Distance between the point
During change, when just between the input shaft of coupling and the output shaft radial displacement being arranged, the identical speed relation between member x and the member y, and B
0The movement velocity perseverance of point is that 0 characteristics can not change.Because mechanism is as two frame point A
0And C
0Distance between the point
During change, still can make between member x and the member y relation that guarantees identical speed, this has just satisfied as the radially the most basic motion requirement of coupling, can be designed to radially coupling.In addition, member x and y in the mechanism rotate around immovable point, during structural design, make its barycenter be positioned at run-on point, and when uniform rotation, inertial force and moment of inertia equal 0 respectively.All connecting rods in the mechanism all are to be symmetrically distributed, so inertial force and moment of inertia can be cancelled each other and balance.Member z, z ' and z in the mechanism ", when structural design, also make its barycenter be positioned at self geometrical center, i.e. B among the figure
0Point, and B
0The movement velocity perseverance of point is 0, so the inertial force perseverance is 0, and because member z, z ' and z " rotating speed inconsistent, its moment of inertia is not equal to 0.When the yardstick of selection mechanism, make member z, z ' and z " have less rotation acceleration, thereby make it have less moment of inertia.Because these characteristics of mechanism, the radially coupling that is designed to can adapt to the high-speed motion occasion.Distance between above-mentioned two side link run-on points is exactly the radial displacement deviation between the diaxon.As long as can guarantee two side link complete cycles revolutions, be double-crank, the distance between two side link run-on points can change arbitrarily, so this coupling can be realized radial displacement bigger between the diaxon.In order to satisfy the requirement of two between centers corner displacements, with A
1, A
2, A
3, c
1, c
2And c
3The structure of the revolute pair at place is designed to have the structure of elastic component, becomes the spherical rotation pair.Fig. 2 has described among the present invention the compound hinge (composite rotation pair) of mechanism among Fig. 1, becomes the mechanism structure situation after three donut structures with same movement effect.In order to realize easily that structurally member z, z ' and z are " at B
0The compound hinge that point constitutes, " become three concentric annulus shown in Figure 2, the center of circle is original B when structural design, with member z, z ' and z
0The point.The center that relatively rotates between these three annulus still is B
0Point, so, with motion of mechanism effect shown in Figure 1 be equivalent.
According to above-mentioned design, concrete scheme of the present invention is as follows:
This coupling has a left side, two tie-plates that the right side is oppositely arranged are above-mentioned two side links, be provided with concentric and adjacent large circle movingly between two tie-plates, middle annulus, small circle ring, greatly, in, each symmetry is consolidated with 2 disc assemblies on the small circle ring, each disc assembly connects a connecting rod, connecting by bearing pin of disc assembly and connecting rod connects both with pin joint hole on the connecting rod by the pin joint hole on the disc assembly, respectively be provided with 3 connecting hole that are evenly distributed on two tie-plates, the above-mentioned connecting rod that connects with the disc assembly is one group with 3 connecting rods of interval location, two groups of connecting rods connect with two tie-plates respectively, and each is connected the connection of connecting rod and tie-plate both by connecting hole corresponding on the connecting hole on the connecting rod and the tie-plate by joining shaft; The distance h unanimity of center, pin joint hole to the circle ring center on each disc assembly; Connecting hole center on each tie-plate to tie-plate center separately consistent and identical to the distance h of circle ring center with the center, pin joint hole on the disc assembly apart from j.
The middle side part that described joining shaft connects with connecting rod is a spheroid, is provided with in the connecting hole of described connecting rod with connecting rod to have the rubber elasticity axle sleeve that spheroid one side matches, and connecting rod and rubber elasticity axle sleeve are resilient connection; The side that described joining shaft connects with tie-plate be taper and with the cone shape hole drive fit of tie-plate.
Each fixed on above-mentioned large circle, middle annulus, small circle ring disc assembly is formed by the left and right disc that is oppositely arranged, and connecting rod is connected between the left and right disc.。
Above-mentioned large circle, middle annulus, small circle ring respectively are made up of left and right annulus.
Be provided with bearing between the left annulus of the left annulus of above-mentioned large circle, right annulus and middle annulus, the right annulus, bearing is in the groove on the left and right annulus opposing side of the left and right annulus of large circle and middle annulus; Be provided with bearing between the left annulus of left annulus, right annulus and the small circle ring of middle annulus, the right annulus, in the groove during bearing is on the left and right annulus opposing side of the left and right annulus of annulus and small circle ring.
Above-mentioned bearing all adopts the bicylindrical roller bearing.
In the existing technology, sliding cross coupling by lanar four rod mechanism constitute, Schmit (Shi Mite) coupling is made of the plane six bar mechanism, what China Patent No. was that 03228230.3 invention " movable rotary rigid coupling " selects for use is the plane eight-bar linkage, what the present invention selected for use is plane 12 linkage mechanisms of symplex structure, compare with the prior art scheme, the present invention has following characteristics:
1, the present invention is made of plane 12 linkage mechanisms, compares with the coupling that is made of quadratic crank mechanism, six bar mechanism and eight-bar linkage, can bear bigger load, transmits bigger power.
2, what the present invention selected for use is the mechanism of symplex structure, and during structural design, the integral body of coupling also is designed to symplex structure, so inertial force energy self balance is applicable to high-speed applications.
3, be provided with the rubber elasticity axle sleeve in the revolute pair between connecting rod of the present invention and input, the output link, this just expands as spherical pair with original revolute pair.When being that revolute pair is when connecting between connecting rod and input, the output link, can only be implemented between input shaft and middle annulus and output shaft and the middle annulus with the perpendicular plane of pto input shaft axis in rotation, equally, also can only be implemented between input shaft and the output shaft with the perpendicular plane of pto input shaft axis in rotation, just can only realize radial displacement between input shaft and the output shaft.When expanding as spherical pair between connecting rod and input, the output link and connect, can not only realize displacement radially between input shaft and middle annulus and output shaft and the middle annulus, and can realize corner displacement, just can realize radial displacement and corner displacement between input shaft and the output shaft.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is 12 connecting rod mechanism movement sketches;
Fig. 2 is the donut structure motion sketch that has the same movement effect with 12 linkage mechanisms shown in Figure 1;
Fig. 3 is the embodiments of the invention structure diagram;
Fig. 4 is Fig. 3 A-A sectional view;
Fig. 5 is the tie-plate diagrammatic sketch.
Embodiment
Fig. 3 extremely embodiment shown in Figure 5 has left and right two tie-plates 1 that are oppositely arranged.Be provided with concentric and adjacent large circle 3, middle annulus 4, small circle ring 5 movingly between two tie-plates 1.Because the needs of processing technology, large circle 3 is formed by screw attachment by left annulus 3-1, right annulus 3-2, and middle annulus 4 is formed by screw attachment by left annulus 4-1, right annulus 4-2, and small circle ring 5 is formed by screw attachment by left annulus 5-1, right annulus 5-2.The left annulus 4-1 of the left annulus 3-1 of large circle, right annulus 3-2 and middle annulus, right annulus 4-2 opposing side are provided with groove, are provided with bicylindrical roller bearing 9 in the groove.Left annulus 4-1, right annulus 4-2 and the left annulus 5-1 of small circle ring, the opposing side of right annulus 5-2 of middle annulus are provided with groove, be provided with bicylindrical roller bearing 8 in the groove, because the restriction in space, bearing 8 is selected the bicylindrical roller bearing of 2 small dimensions, is separated by by bearing spacer 12 between the two bearings 8.Can relatively rotate between large circle 3 and the middle annulus 4, can relatively rotate between middle annulus 4 and the small circle ring 5.Above-mentioned large, medium and small annulus constitutes the composite rotation pair and is member z, z ' among Fig. 2 and z " at B
0The compound hinge that point constitutes.
Be arranged with on the large circle 3 to be arranged with on two disc assemblies 13, the middle annulus 4 and be arranged with two disc assemblies 15 on two disc assemblies 14, the small circle ring 5.Above-mentioned disc assembly is formed by the left and right disc that is oppositely arranged, and has shown among Fig. 3 that the disc assembly 13 on the large circle 3 is made up of left disc 13-1 that is oppositely arranged and right disc 13-2; Disc assembly 15 on the small circle ring 15 is made up of left disc 15-1 that is oppositely arranged and right disc 15-2.Because large circle, middle annulus, small circle ring respectively are made up of left and right annulus, so two disc assemblies 13 on the large circle 3 are to be separately positioned on the left annulus 3-1 and right annulus 3-2 of large circle 3, two disc assemblies 14 on the middle annulus 4 are that two disc assemblies 15 on the small circle ring 5 are to be separately positioned on the left annulus 5-1 and right annulus 5-2 of small circle ring 5 on the left annulus 4-1 and right annulus 4-2 of annulus 4 in being separately positioned on.The left and right disc of all disc assemblies is welded on the corresponding annulus.Be provided with relative pin shaft hole on the left and right disc of disc assembly, each disc pin shaft hole center distance h of circle ring center extremely separately is consistent (see figure 4).Be provided with connecting rod 6 between every pair of left and right disc, connecting rod 6 is consistent with connecting rod among Fig. 2.Left and right disc has axle sleeve 11 with taking the pin shaft hole on left and right disc and the former end pin shaft hole internal fixation of connecting rod 6 connecting of connecting rod 6, and bearing pin 2 inserts in the axle sleeves 11 and for constituting revolute pair movingly.
On two tie-plates 1, respectively be provided with the three connecting hole 1-1 (see figure 5)s that even distribution promptly is equidistant 120 ° of distributions, the connecting hole center on the tie-plate 1 to tie-plate center separately consistent and identical with the distance h of pin shaft hole center to circle ring center on the disc apart from j.3 connecting rods of interval location are one group, and promptly 3 connecting rod 6-1 among Fig. 4 are one group, and 3 connecting rod 6-2 are one group in addition.Three connecting rods of every group of connecting rod belong to large and small, middle annulus, and two groups of connecting rods connect with two tie-plates 1 respectively, and connecting rod 6 is by corresponding connecting hole connection on joining shaft 7 and the tie-plate 1.The middle side part that described joining shaft 7 connects with connecting rod 6 is spheroid 7-1, be provided with in the connecting hole of connecting rod 6 with connecting rod 6 and have the rubber elasticity axle sleeve 17 that spheroid 7-1 one side matches, form spherical pair between the spheroid 7-1 of connecting rod 6 and the rubber elasticity axle sleeve 17 and be the sphere resilient connection.The side that joining shaft 7 connects with tie-plate 1 be taper and with the cone shape hole 1-1 drive fit of tie-plate 1, and fixing by nut 16.The present invention is when using, and two tie-plates 1 connect input shaft and output shaft respectively.
Claims (6)
1, a kind of corner radial coupler, has a left side, two tie-plates (1) that the right side is oppositely arranged, it is characterized in that: be provided with concentric and adjacent large circle (3) movingly between two tie-plates (1), middle annulus (4) and small circle ring (5), large circle (3) is gone up symmetry and is consolidated with 2 disc assemblies (13), middle annulus (4) is gone up symmetry and is consolidated with 2 disc assemblies (14), small circle ring (5) is gone up symmetry and is consolidated with 2 disc assemblies (15), each disc assembly connects a connecting rod (6), connecting by bearing pin (2) of disc assembly and connecting rod (6) connects both with pin joint hole on the connecting rod (6) by the pin joint hole on the disc assembly, respectively be provided with 3 connecting hole (1-1) that are evenly distributed on two tie-plates (1), the above-mentioned connecting rod that connects with the disc assembly (6) is one group with 3 connecting rods of interval location, two groups of connecting rods connect with two tie-plates (1) respectively, and connecting rod (6) is respectively gone up corresponding connecting hole by joining shaft (7) by connecting hole on the connecting rod (6) and tie-plate (1) with the connection of tie-plate (1) both are connected; The distance h unanimity of center, pin joint hole to the circle ring center on each disc assembly; Connecting hole on each tie-plate (1-1) center to tie-plate center separately consistent and identical to the distance h of circle ring center with the center, pin joint hole on the disc assembly apart from j.
2, corner radial coupler according to claim 1, it is characterized in that: the middle side part that described joining shaft (7) connects with connecting rod (6) is spheroid (7-1), be provided with in the connecting hole of described connecting rod (6) with connecting rod (6) and have the rubber elasticity axle sleeve (17) that spheroid (7-1) side matches, connecting rod (6) is resilient connection with rubber elasticity axle sleeve (17); The side that described joining shaft (7) connects with tie-plate (1) be taper and with cone shape hole (1-1) drive fit of tie-plate (1).
3, corner radial coupler according to claim 1 and 2 is characterized in that: each the disc assembly on large circle (3), middle annulus (4), the small circle ring (5) is formed by the left and right disc that is oppositely arranged, and connecting rod (6) is connected between the left and right disc.
4, corner radial coupler according to claim 3 is characterized in that: large circle (3), middle annulus (4), small circle ring (5) respectively are made up of left and right annulus.
5, corner radial coupler according to claim 4, it is characterized in that: be provided with bearing (9) between the left annulus (3-1) of large circle, right annulus (3-2) and the left annulus (4-1) of middle annulus, the right annulus (4-2), bearing (9) is in the groove on the left and right annulus opposing side of the left and right annulus of large circle and middle annulus; Be provided with bearing (8) between left annulus (4-1), right annulus (4-2) and the left annulus (5-1) of small circle ring of middle annulus, the right annulus (5-2), in the groove during bearing (8) is on the left and right annulus opposing side of the left and right annulus of annulus and small circle ring.
6, corner radial coupler according to claim 5 is characterized in that: above-mentioned bearing (8,9) all adopts the bicylindrical roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100707761A CN100344893C (en) | 2005-05-19 | 2005-05-19 | Corner radial coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100707761A CN100344893C (en) | 2005-05-19 | 2005-05-19 | Corner radial coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1818408A CN1818408A (en) | 2006-08-16 |
| CN100344893C true CN100344893C (en) | 2007-10-24 |
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ID=36918553
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100707761A Expired - Fee Related CN100344893C (en) | 2005-05-19 | 2005-05-19 | Corner radial coupler |
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| Country | Link |
|---|---|
| CN (1) | CN100344893C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102490730A (en) * | 2011-12-02 | 2012-06-13 | 西南交通大学 | Device for driving bogie of electric locomotive |
| CN104653643A (en) * | 2015-02-14 | 2015-05-27 | 合肥誉联信息科技有限公司 | Disc type shaft coupling for printing roller |
| CN106989110B (en) * | 2017-05-22 | 2018-06-29 | 温州职业技术学院 | Various dimensions are adapted to shaft coupling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154669A (en) * | 1988-09-06 | 1992-10-13 | Atec-Weiss Kg | All-steel clutch with adjustable angle of rotation |
| CN2594531Y (en) * | 2003-01-15 | 2003-12-24 | 浙江大学城市学院 | Movable rotary rigid shaft coupling |
| US6699133B2 (en) * | 2000-04-10 | 2004-03-02 | Atec-Weiss Gmbh & Co. Kg | Annular disk for flexible shaft couplings, disk packet made from these annular disks, and flexible shaft coupling with such annular disks |
-
2005
- 2005-05-19 CN CNB2005100707761A patent/CN100344893C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5154669A (en) * | 1988-09-06 | 1992-10-13 | Atec-Weiss Kg | All-steel clutch with adjustable angle of rotation |
| US6699133B2 (en) * | 2000-04-10 | 2004-03-02 | Atec-Weiss Gmbh & Co. Kg | Annular disk for flexible shaft couplings, disk packet made from these annular disks, and flexible shaft coupling with such annular disks |
| CN2594531Y (en) * | 2003-01-15 | 2003-12-24 | 浙江大学城市学院 | Movable rotary rigid shaft coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1818408A (en) | 2006-08-16 |
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