CN2132870Y - Multiple flexible threshold coupling - Google Patents

Abstract

The utility model relates to a multiple flexible threshold coupling 10, comprising two end pieces (11, 111) which are coaxially separated and correspondingly arranged, and a middle piece formed through multiple independent connecting pieces (14). The two end pieces are connected by the multiple independent connecting pieces through the matching of the end head parts (16, 116, 23) and deep holes (13) which are arranged in equal distance along some one periphery on the inner end surfaces (12, 112) of the end pieces; simultaneously, the longitudinal shaft axes of each connecting piece is parallel to the common shaft axis of the two end pieces. Each connecting piece can be positioned in a limited angle according to the self shaft axis to make the coupling have variable flexibility. The same coupling can be matched with connecting pieces having different amounts to adapt to various transferable torque moment ranges.

Description

Multiple flexible threshold coupling

The utility model relates to a kind of multisoftness thresholding coupling.Or rather, the utility model relates to a kind of for adapting to the coupling of its flexibility value range of the corresponding change of service condition energy.

Covered the coupling that many kind structures are different, be used for many various objectives in the prior art.Among these mechanical couplings, flexible coupling is divided into two big classes usually, i.e. torsional rigid coupling and reverse flexible coupling.Last class coupling can the little uncoaxiality deviation of the value of being compensated for as, but keeps torsional rigid.What belong to this class is for example to use those known coupling of tooth, chain, spiral.

Back one class coupling promptly reverses flexible coupling, and except the characteristic feature with rigid coupling, also permission for example between the diaxon that connects with this flexible coupling, has relative flexibility rotation.What belong to this class is for example to use the coupling of spring, rubber parts, flexible flake etc.

In the prior art, all various coupling are carried out the function that its structure is given fully, but also only carry out the function of its affiliated particular category coupling, and operating range is quite limited.The example of these coupling can be at GB-A-2, finds in 182,417, CH-A-244,413, FR-A-886,940 and FR-A-2,064,685.

GB-A-2 discloses the flexible coupling of two running shafts of a kind of connection in 182,417, and this coupling has the opposed cover joint of a pair of axial separation.Each cover joint all is provided with radial groove, from holding and clamping rectangle elasticity interlock plate between two cover joints.

CH-A-244 discloses a kind of dog coupling in 413, and wherein joint element should be elastic element mutually, so as can be on two sense of rotation flexible transmitting movement.

FR-A-886,940 disclose the flexible joint sleeve of a kind of tubulose, and it is made of a plurality of flexible members, and an end of described flexible member is fixed on the static plate, and the other end then is fixed on one and applies on the plate of load to be compensated on it.

FR-A-2 discloses a kind of flexible coupling in 064,685, and two flanges that are fastened on motor and the flexible member are wherein arranged, and the flexible member within the set cooperation position links these two flanges on the flange by being fixed on.These flexible members can be rod, thin slice, are rolled into the element of spiral, boundling rod and pipe member.

In view of above-mentioned various known coupling exist the limited deficiency of operating range, the utility model aims to provide a kind of multisoftness thresholding coupling, and this coupling is suitable for the existing flexibility of reversing in various flexibility scopes, and torsional rigid is arranged again.

Above-mentioned purpose of the present utility model realizes by multisoftness thresholding coupling provided by the utility model.Coupling of the present utility model comprises opposed two extremity pieces of coaxial separated and the middleware between these two extremity pieces.Wherein, described extremity piece is made with metal or other suitable material, and its inner side end is provided with a plurality of along the equidistant deep hole of arranging of a certain circumference; Described middleware is made of a plurality of independent couplings; Each independent coupling is made of central part and two termination portions, two end portions do not place this deep hole of corresponding phase, two extremity pieces are associated in together, and make it separated by a distance, the longitudinal axis of each independent coupling is parallel to the common axis line of described two end pieces; Each independent coupling can be relatively self longitudinal axis on certain angular orientation, locate so that transmit different torque ranges, and obtain to be proportional to the range in stiffness that coupling joins the uncoaxiality of each; Can assemble the independent coupling of different numbers in the same coupling, but to adapt to different transmitting torque scopes.

The overall characteristic of this coupling is, has equivalence when the motion of transmitting between the diaxon, also, joins each any given location for this kind extremity piece, and this coupling all comes transmitting movement with the output speed that equals input speed at any time.

Because coupling of the present utility model has this kind structure, so the very highi degree of accuracy that will reach must be realized.

Independent coupling in this coupling can be had various configurations, and available different suitable material is made, and the available method that differs widely is made.When independent coupling completely or partially with the little material of heat-transfer coefficient, when for example plastics were made, coupling of the present utility model also has isolated the advantage that electromagnetic interference and heat are disturbed.

The independent central part of coupling can be had a different shape, and example rod, pipe, thin slice etc. are wherein desirable with thin slice.Because coupling of the present utility model can be by the selection of independent coupling quantity and its sheet central part angular orientation; adapt to required operating conditions; the scope of rigidity and torque for example; so when driven end breaks down and torque when surpassing allowed band; central part can be cut off by torsion; avoid drive end equipment impaired, play the safety protection effect, this is another advantage of the utility model coupling.

In addition, each relevant rule is followed in the characteristic strictness during this coupling variable load, so can expect in advance.

In addition, this coupling is from the angle of merit density, and its characteristic is better than known coupling.So-called merit density promptly puts on the load of coupling and the ratio of coupling own wt.

These characteristics and other characteristic of the utility model coupling will more be clear that in the following description.

As follows as the shown accompanying drawing of indefiniteness embodiment:

Fig. 1 is that the solid of a kind of coupling of the utility model is decomposed phantom;

Fig. 2 is that the solid of a kind of remodeling of the utility model coupling is decomposed phantom;

Fig. 3 is the three-dimensional exploded view of independent a kind of concrete pattern of coupling in the utility model;

Fig. 4 a and 4b illustrate the front elevation and the sectional arrangement drawing of a kind of concrete pattern of independent coupling respectively;

Fig. 5 illustrates the another kind of concrete pattern of independent coupling;

Fig. 6 illustrates the schematic representation of independent coupling different amount position change method;

Fig. 7 illustrates the another kind of solution schematic representation that independent coupling angular orientation changes;

Fig. 8 is the part stereogram of a kind of coupling of retrofiting of the utility model;

Fig. 9 a and 9b illustrate the front elevation and the side diagrammatic sketch of the another kind of remodeling of the utility model coupling.

Among Fig. 1, a kind of coupling 10 of the present utility model comprises two extremity pieces 11 and 111, and the middleware between this two end pieces.Wherein, extremity piece 11 and 111 usefulness metals or other suitable material are made, both coaxial separated are opposed, and respectively be provided with the structure that can connect institute's palpus with master and slave moving axis by known way, promptly overlap axis hole and keyway and other not shown fastening structure, for example monolateral groove adds clamping screw hole, bilateral groove and adds bilateral clamping screw hole, the self-alignment ring compressing structure that rises, and the reasonable combination of above-mentioned various fastening structures in case of necessity.Each extremity piece 11 and 111 side end face 12 and 112 within it is provided with a plurality of corresponding one by one along deep hole number on equidistant 13, two extremity pieces of deep hole arranged of a certain circumference and position.In the present embodiment, this group deep hole is one group of cylindrical hole.

Extremity piece 11 and 111 is associated in together by the middleware that is made of a plurality of independent couplings 14, and separated by a distance, and the number of coupling equals the number of cylindrical hole 13.

Each coupling 14 is central part 15 and two single piece that the post ends head that cooperates with respective aperture 13 on extremity piece 11 and 111 opposing sides respectively 16 constitutes that are configured as thin slice substantially by.For making termination portion 16 and hole 13 light force fit better, also be provided with annular knurl 17 or other equivalent surface characteristics in the termination portion 16.

Independent coupling 14 light force fits are in corresponding deep hole 13, and when assembling like this, its longitudinal axis is parallel to the axis of coupling 10, also promptly is parallel to the common axis line of two extremity pieces 11 and 111.

The middleware that a plurality of couplings 14 are constituted is actually and transmits required torque parts that use, that have variable flexibility characteristic.For this reason, in same coupling configuration, can dispose the coupling 14 of different numbers, and relative himself longitudinal axis of coupling 14 can be installed with different angular orientations.

Fig. 6 illustrates the schematic representation of 14 4 kinds of possibilities of independent coupling mounting type.In Fig. 6 a, each coupling 14 is assemblied in the coupling 10 with the principal plane of its central part 15 radius perpendicular to extremity piece 11 and 111.This is the situation that coupling 10 has big torsional stiffness.

Fig. 6 b illustrates the reverse situation of coupling 10 torsional flexibility maximums.At this moment, each coupling 14 is installed with the radius that the principal plane of its central part 15 is parallel to extremity piece 11 and 111.

Fig. 6 c is the schematic representation of Fig. 6 a illustrated embodiment, but the less independent coupling 14 of number is housed, for the usefulness of transmitting another kind of torque range.

Fig. 6 d is a kind of schematic representation of compromise proposal, the radius of coupling 14 and extremity piece 11 and 111 Boulez at an angle wherein, in this embodiment, mutually successively by opposite angle Boulez.

Fig. 3 illustrates a kind of remodeling of the utility model coupling.Wherein, coupling 14 is by demountable central part 115 and can holds two assembly parties that termination portion 116 constitutes at central part two ends separately.

Be preferably, each termination portion 116 is made of a cylindrical member 18, a front flange 19 and a matching hole 35, wherein cylindrical member 18 can with deep hole 13 light force fits on extremity piece 11 and 111.Central part 115 is single sheets, but on its two ends insertion end head 116 in the set matching hole 35.

Be more preferably, termination portion 116 is provided with at least one positioning key 36, one end of this positioning key links to each other with front flange 19, corresponding therewith, deep hole 13 on the extremity piece 11,111 is provided with at least one keyway that can hold positioning key 36 37, the deep hole 13 of band keyway 37 becomes a seat hole 20, and this Kong Keyu termination portion 116 cooperates, and can select required central part 115 principal plane angular orientations during cooperation.Press shown in the figure, central part 115 can be relatively self axis change 180 ° of angular orientations.But, then can change the multiple angles position if be provided with a plurality of keyways 37.

Coupling 14 can be made from a variety of materials separately, no matter is metal or plastics, all can as long as can adapt to various application characteristics.

Coupling 14 also can be made with diverse ways separately.Fig. 4 illustrates whole coupling 14 two termination portion 16 that one section metal tube of a kind of usefulness processes and is cylindrical shape, and central part 15 is for riding over double-deck thin slice together.Fig. 5 then illustrates a kind of whole coupling 14 that twists and form with sheetmetal, and wherein two termination portions 16 are inc reel shape, and central part 15 is a single sheet, and this thin slice extends to the Transverse plane of reel by certain diameter of reel within two ends head 16.

In the utility model coupling remodeling shown in Figure 2, coupling 14 is another kind of assembly parties separately.Wherein, central part 15 is single sheets, and a hole 26 is respectively arranged near its end; Termination portion 116 is cylindrical pieces 23 of trough of belt mouth, this cylindrical piece can with deep hole 13 light force fits on the extremity piece 11,111, notch on it is used for receiving the end of central part 15 in holding; Simultaneously, all cylindrical pieces (23) that cooperate with each corresponding deep hole 13 on same extremity piece 11 or 111, each is linked to be a single piece by a ring part 21; The ring surface of ring part 21 is provided with the slotted eye 22 of equal angles Boulez, and its size and number are consistent with the central part 15 that cooperates with it; A notch plane of each cylindrical piece 23 is provided with tooth 25, and it is used for cooperating with hole 26; The end-blocking portion of notch forms preceding stop portion 24.

Therefore, among this embodiment, the number of the central part 15 that cylindrical piece 23 holds can increase and decrease on demand.Preceding stop portion 24 and the tooth 25 that matches with set hole 26 on the central part 15 can prevent that central part 15 from rotating or moving axially in coupling 10 working procedure.Change on the ring part 21 slotted eye 22 with respect to the angle orientation of ring part radius, and the notch on the cylindrical piece 23 is coincide with it, then can change the angular orientation of relative self longitudinal axis of central part 15 as shown in Figure 6.

The single piece of ring part 21 and 23 structures of a plurality of cylindrical pieces can become assembly parts with central part 15 assembled in advance, and this has remarkable advantage when production and renewal part.

Under any circumstance, a kind of like this structure makes deflection may be used to the compensating axial alignment error, reaches very high precision; And when needed, combinations thereof part extremity piece 11 and 111 relatively is in axial sliding.

Fig. 7 is a kind of schematic representation of mode of execution, and wherein the hole in extremity piece 11,111 or the termination portion 116 is a polygonal holes, is hex hole 27 in the present embodiment for example, makes central part 15 that multiple orientation type can be arranged.

Fig. 9 illustrates another remodeling of the utility model coupling.Wherein, middleware is a single piece 28 that is made of a plurality of independent connections 14, the central part of each independent coupling is linked to be a cylinder 39, these cylinder two ends respectively are connected with an annulus portion 40, respectively be provided with a plurality of cylindrical pieces 23 on the outer side surface of these two annulus portions, this cylindrical piece can with set deep hole 13 light force fits on the extremity piece 11,111.

At last, Fig. 8 illustrates a kind of concrete form of the utility model coupling, wherein separately respectively establish a gear part 29 between two termination portions 16 of coupling 14 and the central part 15, the diameter of this gear part is greater than the diameter of cylindrical end head 16, cylindrical end head 16 and 13 movable cooperations of deep hole, gear part 29 is with internal gear set on the extremity piece 11,111 30 engagements, thereby rotation along with internal gear 30, gear part 29 drives whole coupling 14 and rotates, and makes central part 15 its longitudinal axis change angular orientation relatively.

In order when coupling 10 is static, to change the angular orientation of central part 15 with manual mode.On the ring surface of internal gear 30 adjacent extremity pieces 11,111, be provided with the cooperation tooth, it can mesh with the small gear 33 of hand control wheel 31 ends, when hand control wheel 31 during along the positive and negative rotation of arrow 32 directions, internal gear 30 is along the positive and negative rotation of arrow 34 directions, rotation along with internal gear 30, gear part 29 drives whole coupling 14 and rotates, and makes central part 15 relative its longitudinal axis change the angular orientation.

For can be at coupling 10 during static or running, change the angular orientation of central part 15 with non-manual mode, cooperation tooth (not shown) can be set on the outer circumferential face of internal gear 30,, change the angular orientation of central part 15 from face for using external means to rotate internal gear 30.

Coupling 10 of the present utility model can overlap with suitable protecting jacket (not shown), the sheath made from rubber school or other material for example, and it also constitutes the part of coupling.

Better embodiment more of the present utility model more than have been described, but related domain professional workforce can might carry out some changes under the situation that does not surmount the utility model scope.

Claims (13)

1, a kind of multisoftness thresholding coupling, it comprises opposed two extremity pieces of coaxial separated and the middleware between these two extremity pieces, it is characterized in that described extremity piece (11,111) side end face (12,112) within it is provided with a plurality of along the equidistant deep hole of arranging (13) of a certain circumference; Described middleware is made of a plurality of independent couplings (14); Each independent coupling (14) is made of central part (15,115) and two termination portions (16,116), two termination portions (16,116) place corresponding deep hole (13) respectively, two described extremity pieces (11,111) are associated in together, and make it separated by a distance, the longitudinal axis of each independent coupling (14) is parallel to the common axis line of described two extremity pieces (11,111); Each independent coupling (14) can be relatively self longitudinal axis on certain angular orientation, locate, can assemble the independent coupling (14) of different numbers in the same coupling (10), but to adapt to different transmitting torque scopes.

2, the described coupling of claim 1, it is characterized in that, each independent coupling (14) is the single piece that is made of two termination portions (16) and a central part (15), and the periphery of two termination portions (16) and cylindrical deep hole (13) light force fit.

3, the described coupling of claim 2 is characterized in that, described termination portion (16) is cylindrical, and central part (15) is a single sheet.

4, the described coupling of claim 2 is characterized in that, two termination portions (16) are cylindrical shape, and central part (15) is for riding over double-deck thin slice together.

5, the described coupling of claim 2 is characterized in that, two termination portions (16) are inc reel shape; Central part (15) is a single sheet, and this thin slice extends to the Transverse plane of tube by certain diameter of reel within the head of two ends.

6, the described coupling of claim 1, it is characterized in that, respectively be provided with a gear part (29) between two termination portions (16) of described independent coupling (14) and the central part (15), the diameter of this gear part is greater than the diameter of cylindrical end head (16), cylindrical end head (16) cooperates with deep hole (13) is movable, the same extremity piece (11 of described gear part (29), 111) go up set internal gear (30) engagement, thereby rotation along with internal gear (30), gear part (29) drives whole coupling (14) and rotates, and makes central part (15) its longitudinal axis change angular orientation relatively.

7, the described coupling of claim 6, it is characterized in that, the ring surface of the adjacent extremity piece of described internal gear (30) (11,111) is provided with the cooperation tooth, it can mesh with the small gear (33) of hand control wheel (31) end, when hand control wheel (31) during along the positive and negative turn of arrow (32) direction, internal gear (30) is along the positive and negative rotation of arrow (34) direction, rotation along with internal gear (30), gear part (29) drives whole coupling (14) and rotates, and makes central part (15) its longitudinal axis change angular orientation relatively.

8, the described coupling of claim 6 is characterized in that, the outer circumferential face of described internal gear (30) is provided with the cooperation tooth, the usefulness of or when running transmission internal gear (30) static for coupling (10).

9, the described coupling of claim 1 is characterized in that, each independent coupling (14) is the assembly parts that is made of central part (115) and two ends (116).

10, the described coupling of claim 9, it is characterized in that, each described termination portion (116) is made of a cylindrical member (18), a front flange (19) and a matching hole (35), wherein cylindrical member (18) can with deep hole (13) light force fit on the extremity piece (11,111); Described central part (115) is a single sheet, but its two ends insertion end heads (116) are gone up in the set matching hole (35).

11, the described coupling of claim 10, it is characterized in that, described termination portion (116) is provided with at least one positioning key (36), the same front flange of one end (19) of this positioning key (36) links to each other, corresponding therewith, in the deep hole (13) on the extremity piece (11,111), be provided with at least one keyway that can hold positioning key (36) (37).

12, the described coupling of claim 9 is characterized in that, described central part (15) is a single sheet, and a hole (26) is respectively arranged near its end; Described termination portion (116) is the cylindrical piece (23) that has notch, this cylindrical piece (23) can with deep hole (13) light force fit on the extremity piece (11,111), on it with notch for holding the usefulness of central part (15); Simultaneously, all cylindrical pieces (23) that cooperate with last each the corresponding deep hole (13) of same extremity piece (11 or 111) respectively are linked to be a single piece by an annular solid (21); The slotted eye (22) that the equal angles Boulez is arranged on the annular solid (21), its size and number are consistent with the central part 15 that cooperates with it; A notch plane of each cylindrical piece (23) is provided with tooth (25), and it is used for cooperating with hole (26), and the end-blocking portion of notch forms preceding stop portion (24).

13, the described coupling of claim 1, it is characterized in that, described middleware is a single piece (28) that is made of a plurality of independent couplings (14), wherein each central part is linked to be a cylinder (39), the two ends of this cylinder respectively are connected with an annulus portion (40), the exterior annular face of two annulus portions (40) respectively is provided with a plurality of cylindrical pieces (23), and this cylindrical piece (23) can be gone up set deep hole (13) light force fit with extremity piece (11,111).

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