CN216111822U

CN216111822U - Coupling applicable to narrow axial space

Info

Publication number: CN216111822U
Application number: CN202122730097.XU
Authority: CN
Inventors: 宋振华; 李刚
Original assignee: CETC Avionics Co Ltd
Current assignee: CETC Avionics Co Ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-03-22
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a coupler applicable to a narrow axial space, and relates to the technical field of couplers. It includes first shaft coupling body and second shaft coupling body, set up in the first shaft coupling body with the connect the through hole of second shaft coupling body shape adaptation, connect the axial of through hole and the axial unanimity of first shaft coupling body, the second shaft coupling body cooperates with connect the through hole, first shaft coupling body has the first shaft coupling portion that is used for with axle interconnect, the second shaft coupling body has the second shaft coupling portion that is used for with axle interconnect. This shaft coupling is through seting up connect the via hole on first shaft coupling body, the embedded second shaft coupling body of connect the via hole, and this kind of is direct to inlay the form of establishing to first shaft coupling body with the second shaft coupling body and has replaced the mode that two axis bodies of tradition are connected side by side, and the axial that can significantly reduce occupies the size to the installation requirement of the narrow and small axial space of adaptation.

Description

Coupling applicable to narrow axial space

Technical Field

The utility model relates to the technical field of couplings, in particular to a coupling applicable to a narrow axial space.

Background

At present, the shaft coupling on the market is suitable for the connected mode of axle to axle, and it mainly relies on two axial parallel arrangement's shaft coupling body to connect two axles respectively, and two shaft coupling bodies are again through body coupling or connect the purpose that realizes two mutual axial connections of axle through the middleware. However, the two coupling bodies of the coupling in this form are arranged in parallel, and therefore occupy a certain size for the axial space, and cannot be applied to places requiring compact structures such as narrow axial space.

In view of this, the present application is specifically made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a coupling applicable to a narrow axial space, wherein a connecting through hole is formed in a first coupling body, a second coupling body is embedded in the connecting through hole, the traditional mode that two shaft bodies are connected side by side is replaced by the mode that the second coupling body is directly embedded in the first coupling body, and the axial occupied size can be greatly reduced, so that the mounting requirement of the narrow axial space is met.

The embodiment of the utility model is realized by the following steps: the utility model provides an applicable shaft coupling in narrow and small axial space, includes first shaft coupling body and second shaft coupling body, set up in the first shaft coupling body with the connect the through hole of second shaft coupling body shape adaptation, connect the axial of through hole and the axial of first shaft coupling body unanimity, the cooperation of second shaft coupling body and connect the through hole, first shaft coupling body has the first shaft coupling portion that is used for with axle interconnect, the second shaft coupling body has the second shaft coupling portion that is used for with axle interconnect.

In an alternative embodiment, the axis of the connecting through-hole coincides with the axis of the first coupling body.

In an optional embodiment, the coupling further comprises an intermediate body disposed between the connecting through hole and the second coupling body.

In an alternative embodiment, the connecting through-hole is adapted to the axial length dimension of the second coupling body and the intermediate body.

In alternative embodiments, the intermediate body is a cylindrical structure made of plastic or rubber.

In an alternative embodiment, the intermediate body is adapted to the shape of the connecting through hole and has an inner bore of similar shape to the connecting through hole, into which the second coupling body is fitted.

In an optional embodiment, the connecting through hole comprises a first hole body and a plurality of second hole bodies circumferentially arranged around the first hole body, and the second hole bodies are communicated with the first hole bodies.

In an alternative embodiment, the first bore has a central axis which coincides with the axis of the first coupling body.

In an alternative embodiment, the plurality of second apertures are rotationally symmetric and evenly distributed around the circumference of the first aperture.

In an alternative embodiment, the first coupling portion comprises a first coupling bore for interfitting with the shaft; the second coupling shaft portion includes a second coupling shaft hole for interfitting with the shaft.

The embodiment of the utility model has the beneficial effects that:

according to the coupling applicable to the narrow axial space, the first coupling body is provided with the connecting through hole, the connecting through hole is used for installing the second coupling body, the second coupling body is arranged on the first coupling body in an embedded mode, so that the axial size of the whole coupling is basically the axial size of the first coupling body actually, compared with the traditional mode that two coupling bodies are arranged side by side, the occupied space of the axial size is greatly reduced, two shafts are directly connected together through the first coupling body and the second coupling body, and the coupling applicable to the installation requirement of the narrow axial space can be suitable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a first schematic structural diagram of a coupling provided in the prior art;

fig. 2 is a schematic structural diagram ii of a coupling provided in the prior art;

fig. 3 is a schematic structural diagram of a coupling according to an embodiment of the present invention;

fig. 4 is an exploded view of a coupling according to an embodiment of the present invention.

Icon: 1-a first coupling body; 2-a second coupling body; 3-connecting through holes; 4-an intermediate; 21-a second coupling part; 31-a first porous body; 32-a second porous body; 41-inner bore.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "first", "second", "third", and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 and 2, a coupler in the prior art is shown, which is mainly formed by connecting a first shaft body and a second shaft body arranged side by side, or integrally connected, or communicated through an intermediate member, but this way is equivalent to that the whole coupler at least combines the axial dimensions of the first shaft body and the second shaft body, and although the function of the coupler can be achieved, the axial dimensions occupy too much space, and cannot be applied to some installation environments with narrow axial dimensions.

Referring to fig. 3 and 4, an embodiment of the present application provides a coupling suitable for a narrow axial space, so as to solve the problem that the conventional coupling cannot be suitable for some installation environments with narrow axial dimensions. Specifically, the shaft coupling that this application embodiment provided includes first shaft coupling body 1 and second shaft coupling body 2, set up in first shaft coupling body 1 with the connect through hole 3 of 2 shape adaptations of second shaft coupling body, the axial of this connect through hole 3 is unanimous with the axial of first shaft coupling body 1, show that this connect through hole is seted up along the axial of first shaft coupling body 1 promptly, and link up a lateral surface of first shaft coupling body 1 at least, so that can make second shaft coupling body 2 and connect through hole 3 mutually support, the cooperation here can be the tight fit, if transition fit, interference fit or clearance fit, also can be rotatable fit or sliding fit. Through above technical scheme, in fact with in the 2 embedding connect the through hole of second shaft coupling body 3, imbed in the first shaft coupling body 1 promptly, like this in order to follow the axial direction, reduce the space size that whole shaft coupling occupy, the shaft coupling of prior art directly replaces the mode of connecting side by side through the mode of embedded installation, more can be applicable to narrow and small axial space's installation environment.

The first coupling body 1 has a first coupling portion (not shown) for interconnecting with a shaft, and the second coupling body 2 has a second coupling portion 21 for interconnecting with a shaft. The first coupling part and the second coupling part 21 may be in the form of a hole, a shaft, a groove or a protrusion for the purpose of being fixedly connected with the coupling shaft to be connected, so that according to the form of the end of the coupling shaft, when the coupling shaft is in the form of a shaft, the first coupling part and the second coupling part 21 may be in the form of a hole or a groove, and may be fixedly connected with each other in a clamping, screwing, riveting, magnetic connection or other manner; when in the form of a hole, the first coupling portion and the second coupling portion 21 may be in the form of a shaft or a protrusion, and may also be in the form of a snap, a screw, a rivet, a magnetic connection, or other fixed connection therebetween.

In this embodiment, in order to further control the occupied size of the axial space, the first coupling portion includes a first coupling hole for cooperating with the shaft, and the second coupling portion 21 includes a second coupling hole for cooperating with the shaft, where of course the first coupling hole may be directly formed on the other side end surface of the first coupling portion 1, or may be formed on the other platform when the other side end surface of the first coupling portion 1 is further formed with the other platform, in short, it is enough to satisfy the occupied axial space size as small as possible. With the above preferred embodiment, the occupancy rate of the axial space dimension can be further reduced for the shaft-to-shaft connection, thereby meeting the requirement of narrow space installation which is more demanding.

In the present embodiment, the first coupling body 1 and the second coupling body 2 may be coaxially connected by two shafts, or may be eccentrically connected by two shafts, that is, may have non-coincident axes. However, as a general embodiment, the present embodiment is mainly explained by applying a coaxial connection manner, that is, the axis of the connection through hole 3 coincides with the axis of the first coupling body 1, so as to ensure that the axes of the first coupling body 1 and the second coupling body 2 coincide with each other, so as to adapt to a scene that two shafts need to be coaxially connected, and in such a scene, the first coupling body and the second coupling body 21 need to be coaxially arranged.

In order to increase the stability of the mutually engaging and embedding connection between the first coupling body 1 and the second coupling body 2, the coupling provided in this embodiment further includes an intermediate body 4 disposed between the connecting through hole 3 and the second coupling body 2, that is, the intermediate body 4 represents that the first coupling body 1 and the second coupling body 2 are connected by the intermediate body 4, and the intermediate body 4 is used as an intermediate connecting component, which needs to have certain elasticity, that is, the intermediate body 4 is made of an elastic material, especially a plastic, a soft metal material or other high polymer material with an elastic deformation function.

In order to further ensure a smaller axial space occupation, the axial length dimensions of the connecting through hole 3 and the second coupling body 2 and the intermediate body 4 are adapted, that is, the second coupling body 2 and the intermediate body 4 can be completely embedded into the connecting through hole 3, so that the connecting through hole 3 is prevented from extending outwards to occupy other axial space dimensions. Certainly, for the intermediate body 4 can be more adapted to the second coupling body 2 and the connecting through hole 3, the connection is more stable, the shape adaptation of the intermediate body 4 and the connecting through hole 3 mainly means that the shape of the outer annular surface of the intermediate body 4 is similar to that of the connecting through hole 3, and the two can be mutually and completely embedded together, so that the stability and the integrity of the contact connection are ensured. In addition, the intermediate body 4 has an inner hole 41 with a shape similar to that of the connecting through hole 3, that is, the inner hole 41 of the intermediate body 4 is similar to that of the connecting through hole 3, and belongs to a form of equal scaling, and the second coupling body 2 is matched into the inner hole 41, so that the first coupling body 1, the second coupling body 2 and the intermediate body 4 can be well and stably embedded together.

In the present embodiment, in order to further ensure that the intermediate body 4 cannot easily generate a relative displacement in the connecting through hole 3, thereby ensuring the stability of the connection between the first coupling body 1 and the second coupling body 2, the connecting through hole 3 includes a first hole 31 and a plurality of second holes 32 circumferentially arranged around the first hole 31, and the second holes 32 and the first hole 31 are communicated with each other. Through above technical scheme, it has a plurality of second hole bodies 32 to communicate and distribute in first hole body 31's circumference, the solid of revolution that constitutes from this can have a plurality of rotational symmetry's draw-in groove, thereby it connects as a branch portion to assist a plurality of draw-in grooves again, can make midbody 4 and connecting hole 3 be connected through many places, be similar to splined connection's form, thereby guarantee better stability, because the shape of hole 41 also is similar with connecting hole 3's shape, be equivalent to also having guaranteed the stable connection of second coupling body 2 and midbody 4, finally guarantee first coupling body 1, second coupling body 2 and midbody 4 stable connection, and be difficult to produce relative displacement in radial direction.

Of course, in the present embodiment, the first hole body 31 has a central axis coinciding with the axis of the first coupling body 1, i.e., the first hole body 31 is shown as a central portion of the connecting through hole 3, which is also a rotation body, so as to ensure the centering of the entire connection, i.e., good axial consistency. In order to facilitate the machining and to make the stress uniform, the plurality of second hole bodies 32 are rotationally symmetric and uniformly distributed around the circumferential direction of the first hole body 31. Wherein, every second hole body 32 is the cylinder form of sector shape for the preferred cross-section, the sector shape main index standard fan-shaped of here is got rid of the remaining shape behind a similar fan-shaped in its fan-shaped tip department, this kind of sector shape has four turnings, can guarantee that 4 corresponding parts of midbody are gone into well the card, have the fillet or do the fillet at the corner simultaneously and handle, the shape at its sector border is deuterogamied, can make midbody 4 go into the back very easily the inlay card, can not receive rigidity extrusion damage easily simultaneously, be favorable to improving the convenience of dismantling.

In addition, in the present embodiment, the cross-sectional shape of the first hole body 31 is an octagonal hole with four tips of the octagonal hole removed, the side length of the side of the octagonal hole originally coinciding with the square is 0.6 of the side length of the square, and the side length of the side of the octagonal hole originally not coinciding with the square is 0.6 of the side length of the square hole

This preferred ratio is on the one hand relatively goodEasy to process, and on the other hand, the connecting strength of the intermediate body 4 with a similar shape can be better ensured.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that structures or components illustrated in the drawings are not necessarily drawn to scale, and descriptions of well-known components and processing techniques and procedures are omitted to avoid unnecessarily limiting the utility model.

Claims

1. The utility model provides an applicable shaft coupling in narrow and small axial space, a serial communication port, including first shaft coupling body and second shaft coupling body, first shaft coupling body in seted up with the connect the via hole of second shaft coupling body shape adaptation, connect the via hole the axial with the axial of first shaft coupling body is unanimous, the second shaft coupling body with the connect the via hole cooperation, first shaft coupling body has the first shaft coupling portion that is used for with axle interconnect, the second shaft coupling body has the second shaft coupling portion that is used for with axle interconnect.

2. The coupling applicable to narrow axial spaces according to claim 1, wherein the axis of the connecting through hole coincides with the axis of the first coupling body.

3. The coupling applicable to a small axial space according to claim 1, further comprising an intermediate body disposed between the connection through hole and the second coupling body.

4. The coupling applicable to narrow axial spaces of claim 3, wherein the connecting through hole is adapted to the axial length dimension of the second coupling body and the intermediate body.

5. A coupling adapted for use in confined axial spaces as defined in claim 3, wherein said intermediate body is a tubular structure made of plastic or rubber.

6. The coupling applicable to narrow axial space according to claim 3, wherein the intermediate body is adapted to the shape of the connecting through hole, and has an inner hole similar to the shape of the connecting through hole, and the second coupling body is fitted into the inner hole.

7. The coupler applicable to a narrow axial space according to claim 1 or 6, wherein the connecting through hole comprises a first hole body and a plurality of second hole bodies circumferentially arranged around the first hole body, and the second hole bodies are communicated with the first hole bodies.

8. The coupling applicable to a small axial space as claimed in claim 7, wherein the first hole has a central axis coinciding with an axis of the first coupling.

9. The coupling applicable to a small axial space according to claim 7, wherein the plurality of second holes are rotationally symmetric and uniformly distributed around the circumference of the first hole.

10. The coupling applicable to a small axial space as claimed in claim 1, wherein the first coupling portion comprises a first coupling hole for cooperating with a shaft; the second coupling shaft portion includes a second coupling shaft aperture for interfitting with a shaft.