CN101699092A

CN101699092A - coupler

Info

Publication number: CN101699092A
Application number: CN200910110591A
Authority: CN
Inventors: 栾红军
Original assignee: Shennan Circuit Co Ltd
Current assignee: Shennan Circuit Co Ltd
Priority date: 2009-10-20
Filing date: 2009-10-20
Publication date: 2010-04-28

Abstract

The invention discloses a coupler which comprises a first half coupler and a second half coupler which are provided with coupling bodies; the coupling bodies are respectively provided with a locating hole passing through the upper and the lower end surfaces of the coupling bodies; at least two convex blocks extends at one end of the coupling bodies in a convex way, and an inserting hole is formed between the two adjacent convex blocks; and the convex block and the inserting hole of the first half coupler can be blocked and jointed with the inserting hole and the convex block of the second half coupler. As the convex block of the first half coupler and the convex block of the second half coupler are blocked and jointed with each other in a crossing way, the coupler has simple structure, easy fabrication, convenient assembly and compact combination. Furthermore, as the coupling bodies of the first half coupler and the second half coupler are provided with the locating holes which are matched with shaft ends of connected shaft bodies, the combination is firm, and the coupling bodies and the connected shaft bodies can be prevented from sliding.

Description

A kind of coupling

Technical field

The present invention relates to a kind of coupling, relate in particular to a kind of coupling that is used for transmitting the diaxon moment of torsion of coaxial arrangement.

Background technique

Coupling is that two axis bodies that are used for connecting in the different institutions make it the mechanical parts of common rotation with transmitting torque.See also Fig. 1, it is existing a kind of coupling, comprises first half-coupling 1, second half-coupling 3 and the connecting head 2 that connects first half-coupling 1 and second half-coupling 3.The center position of the upper-end surface of described connecting head 2 and the center position of lower end surface are respectively arranged with plush copper, offer respectively on the lower end surface of the upper-end surface of described first half-coupling 1 and second half-coupling 3 and the suitable caulking groove of described plush copper, plush copper embeds in the caulking groove, thereby described first half-coupling 1 and second half-coupling 3 are linked, so transmit the moment of torsion of diaxon.

Yet, first half-coupling 1 of described coupling and the accuracy of manufacturing of second half-coupling 3 require high, two half-couplings need connect by connecting head 2, the intensity of coupling is little, and described first half-coupling 1 and second half-coupling, the 3 formed coupling that connect by connecting head 2 are not compact on axial length, in special (acid, alkalescence) applied environment of PCB industry, dismounting is inconvenient, causes two half-couplings to disconnect, connect the phenomenon that has some setbacks with connecting head 2 easily.

Summary of the invention

The technical problem that the present invention mainly solves provides a kind of coupling, and is simple in structure, compact and install easily, make.

For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: a kind of coupling is provided, comprise first half-coupling and second half-coupling, described first, second half-coupling all has a shaft coupling body, described shaft coupling body has a positioning hole that runs through the upper and lower end face of described shaft coupling body, at least two projections have been protruded out on one end of described shaft coupling body, form socket between adjacent two projections, the projection of described first half-coupling, socket fasten with socket, the projection of described second half-coupling respectively.

Wherein, the border of described positioning hole cross section is closed figure that is connected into from beginning to end by string and straight line or the closed figure that is connected into from beginning to end by the different arc curve of radius.

Wherein, comprise that the positioning hole cross section is month shape or polygonal.

Wherein, the cross section of described projection is fan ring-type or polygonal, and described projection has a fan annular or polygonal upper-end surface and connects the upper-end surface of described projection and the bi-side of the diapire of described socket, has angle between the bi-side of described projection.

Wherein, described angular range is 20 degree～90 degree.

Wherein, offer slotted eye on the sidewall of described shaft coupling body, be provided with the fixedly jackscrew of shaft coupling body and connected axis body in the described slotted eye.

Wherein, described socket takes the shape of the letter U.

Wherein, described first half-coupling is identical with the second half-coupling structure.

Wherein, described coupling is cylinder or polyhedral.

The invention has the beneficial effects as follows: the coupling that is different from prior art need connect two half-couplings by connecting head, accuracy of manufacturing requires high, axially long not compact disconnection easily in unloading process, connect the phenomenon that has some setbacks, coupling of the present invention comprises first half-coupling and second half-coupling, what the projection by first half-coupling and the projection of second half-coupling intersected is fastened togather, simple in structure, easy manufacturing, easy to assembly and in conjunction with compact.

The lateral margin of the side of the lateral margin of the side of the projection of first half-coupling of the present invention and second half-coupling angle at an angle, even the projection of the projection of described like this first half-coupling and second half-coupling exists the deviation of intersecting angle or the situation of radial displacement deviation, described coupling still can smooth rotation; And the shaft coupling body of described first half-coupling and second half-coupling has positioning hole, and is suitable with the axle head of connected axis body, in conjunction with fastening, can prevent that shaft coupling body and connected axis body from sliding.

Description of drawings

Fig. 1 is the structural representation of existing a kind of coupling;

Fig. 2 is a kind of embodiment's of a coupling of the present invention structural representation;

Fig. 3 be coupling of the present invention one of them half-coupling structural representation;

Fig. 4 is the another kind of embodiment's of the coupling of the present invention plan view of first half-coupling;

Fig. 5 be with Fig. 4 in the plan view of second half-coupling that is complementary of first half-coupling.

Embodiment

By describing technology contents of the present invention, structure characteristics in detail, realized purpose and effect, give explanation below in conjunction with mode of execution and conjunction with figs. are detailed.

See also Fig. 2 and Fig. 3, it is a kind of embodiment of coupling of the present invention, comprises first half-coupling 100 and second half-coupling 200, and described first half-coupling 100 and second half-coupling 200 have identical structure.Described first half-coupling 100 has the shaft coupling body 10 of a cylindrical shape, described shaft coupling body 10 has a positioning hole 15 that runs through described shaft coupling body 10 upper and lower end faces, closed figure that this positioning hole 15 is made up of string and straight line or the closed figure of forming by the different arc of radius, in the present embodiment, described positioning hole 15 is moon shape or polygonal.Offer slotted eye 11 on the lateral margin of described shaft coupling body 10, protrude out the projection 12 that two opposition are provided with on the end face of described shaft coupling body 10, thereby between described two projections 12, be formed with the socket 13 of " U " shape on the end face of shaft coupling body 10.In the present embodiment, the cross section of described projection 12 is the fan ring-type, described projection 12 has a fan annular or polygonal upper-end surface and connects the upper-end surface of described projection 12 and the bi-side 14 of the diapire of described socket 13, and the lateral margin of described side 14 is 45 and spends angles.In the present embodiment, can protrude out many projections 12 that opposition is provided with on the end face of described shaft coupling body 10.The cross section of described projection 12 can also be polygon-shaped.

The shape of two projections 12 on the shaft coupling body 10 of first half-coupling 100 can be inequality, thereby the shape of the socket 13 that forms between the projection 12 on first half-coupling 100 is also different, the suitable projection of socket 13 shapes on the shaft coupling body of described second half-coupling 200 on setting and described first half-coupling 100.

The projection 12 of described first half-coupling 100 is fastened in the socket of described second half-coupling 200, the side 14 of the projection 12 of described first half-coupling 100 respectively with the applying that connects of the side of the projection of described second half-coupling 200, so described first half-coupling 100 and second half-coupling 200 are linked.

When described coupling connects axis body, corresponding slotted eye place is fastening by jackscrew on slotted eye 11 on described first half-coupling 100 and second half-coupling 200 and the axis body, thereby described first half-coupling 100 and second half-coupling 200 are fastened on the connected axis body.The two ends of described connected axis body require to manufacture the shape shape adapting with the positioning hole of described first half-coupling 100 and second half-coupling 200.

Special (acid in the PCB industry, alkalescence) in the applied environment, jackscrew is subjected to corrode loosening easily or comes off, even described in the present embodiment jackscrew is subjected to corrode loosening or comes off, the projection 12 of described first half-coupling 100 and the socket of second half-coupling 200, the socket 13 of first half-coupling 100 still docks mutually with the projection of second half-coupling 200 and engages, and a lateral margin of a lateral margin of the side 14 of the projection 12 of described first half-coupling 100 and the side of second half-coupling 200 all has several angle, being 45 degree angles in the present embodiment (is to be 90 degree between the bi-side 14 of projection 12, also we can say and be 90 degree between adjacent two projections 12), even the projection of the projection 12 of described like this first half-coupling 100 and second half-coupling 200 exists the deviation of intersecting angle or the situation of axial displacement deviation, described coupling still can smooth rotation.

Closed figure that the positioning hole of coupling of the present invention is made up of string and straight line or the closed figure of forming by the different arc of radius, the axle head of connected axis body is designed being complementary with it according to the shape of described positioning hole, thereby coupling can combine closely with connected axis body.Coupling of the present invention can also be cuboid or other polyhedral.

In the present embodiment, it is identical that described first half-coupling 100 and second half-coupling 200 have identical structure and material and processing technology, thereby the versatility of described first half-coupling 100 and second half-coupling 200 is good; Described first half-coupling 100 and second half-coupling 200 simple in structure, produce easily, and the compound mode of described first half-coupling 100 and second half-coupling 200 is simple, only projection and socket engaging need be got final product.

See also Fig. 4 and Fig. 5, it for another embodiment of coupling of the present invention is: the structure of described first half-coupling 100 ' and second half-coupling 200 ' is inequality, protrude out the projections 30 that four opposition are provided with on one end face of the shaft coupling body of described first half-coupling 100 ' (among the figure not label), the shape of this projection 30, size can be inequality, form socket 31 between adjacent two projections 30.The projection 30 ' of second half-coupling 200 ' that matches with described first half-coupling 100 ' is designed to be complementary with the shape of the socket 31 of described first half-coupling 100 ', and the socket 31 ' of second half-coupling 200 ' is designed to be complementary with the shape of the projection 30 of described first half-coupling 100 '.The number of described projection 30 not only is defined as four, can also be other number, the number difference of projection 30, and the angle difference of the bi-side of projection 30, the angle between the bi-side of described projection 30 can be between 20 degree～90 degree.Described first half-coupling 100 ' and second half-coupling 200 ' have always respectively put on, the positioning hole 32,32 ' of lower end surface, the closed figure of the border of described positioning hole 32,32 ' cross section for connecting into from beginning to end by string and straight line.

In sum, projection 12 and the projection of second half-coupling 200 being fastened togather of intersecting of coupling of the present invention by first half-coupling 100, simple in structure, easy to assembly; And the positioning hole of the shaft coupling body of described first half-coupling 100 and second half-coupling 200 is designed to suitable the fiting in one of axle head of moon shape or polygonal and connected axis body, can prevent to slide between shaft coupling body and the connected axis body; The lateral margin of the side 14 of described projection 12 is 45 degree angles (being to be 90 degree angles between the bi-side 14 of projection 12), so, when the projection of the projection of first half-coupling 100 and second half-coupling 200 intersects engaging, even the situation that has the deviation of intersecting angle or a radial displacement deviation also can smooth rotation, can not cause two half-couplings to disconnect, connect not smooth phenomenon.

The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.

Claims

1. coupling, it is characterized in that, comprise first half-coupling and second half-coupling, described first, second half-coupling all has a shaft coupling body, described shaft coupling body has a positioning hole that runs through the upper and lower end face of described shaft coupling body, protruded out at least two projections on one end of described shaft coupling body, formed socket between adjacent two projections, the projection of described first half-coupling, socket fasten with socket, the projection of described second half-coupling respectively.

2. coupling according to claim 1 is characterized in that, the border of described positioning hole cross section is closed figure that is connected into from beginning to end by string and straight line or the closed figure that is connected into from beginning to end by the different arc curve of radius.

3. coupling according to claim 2 is characterized in that, described positioning hole cross section is month shape or polygonal.

4. coupling according to claim 1, it is characterized in that, the cross section of described projection is fan ring-type or polygonal, described projection has a fan annular or polygonal upper-end surface and connects the upper-end surface of described projection and the bi-side of the diapire of described socket, has angle between the bi-side of described projection.

5. coupling according to claim 4 is characterized in that, described angular range is 20 degree～90 degree.

6. coupling according to claim 1 is characterized in that, offers slotted eye on the sidewall of described shaft coupling body, is provided with the fixedly jackscrew of shaft coupling body and connected axis body in the described slotted eye.

7. coupling according to claim 1 is characterized in that described socket takes the shape of the letter U.

8. according to each described coupling of claim 1 to 7, it is characterized in that described first half-coupling is identical with the second half-coupling structure.

9. coupling according to claim 8 is characterized in that described coupling is cylinder or polyhedral.