阅读说明：本技术 联轴器 (Coupling device ) 是由 李颖高 李东海 吕绮峰 于 2021-01-21 设计创作，主要内容包括：本发明提供了一种联轴器,其特征在于,包括第一子联器、第二子联器,所述联轴器具有相对设置的第一端面、第二端面；所述第一端面设有第一连接部用以连接驱动轴,所述第二端面设有第二连接部用以连接从动轴；所述第一子联器与所述第二子联器可拆卸连接。本发明结构独特,使用方便,在使用时无需对连接设备进行移动,易于安装和拆除。(The invention provides a coupler which is characterized by comprising a first sub coupler and a second sub coupler, wherein the coupler is provided with a first end face and a second end face which are oppositely arranged; the first end face is provided with a first connecting part for connecting a driving shaft, and the second end face is provided with a second connecting part for connecting a driven shaft; the first sub-coupler is detachably connected with the second sub-coupler. The invention has unique structure and convenient use, does not need to move the connecting equipment when in use, and is easy to install and dismantle.)

1. The coupler is characterized by comprising a first sub-coupler and a second sub-coupler, wherein the coupler is provided with a first end face and a second end face which are oppositely arranged; the first end face is provided with a first connecting part for connecting a driving shaft, and the second end face is provided with a second connecting part for connecting a driven shaft; the first sub-coupler is detachably connected with the second sub-coupler.

2. The coupling of claim 1, wherein the first coupling portion is a projection provided on the first end surface, and the drive shaft has a receiving portion that receives the projection to couple the drive shaft to the coupling.

3. The coupling of claim 2 wherein said projections are tenon structures disposed at an axial location at said first end surface.

4. The coupling of claim 1 wherein said second connecting portion is a recess provided in said second end face, said driven shaft having a projection adapted to fit into said recess to connect said driven shaft to said coupling.

5. The coupling of claim 4 wherein said depressions are shaped groove structures disposed at axial locations at said second end surface.

6. The coupling of claim 5 wherein said profiled groove structure comprises a circular post hole groove structure and a kidney groove structure, said circular post hole groove structure and said kidney groove structure being coaxial and on the same end face.

7. The coupling of claim 1 wherein said first connection comprises a first positive connection and a first negative connection, said first positive connection being disposed on said first sub-coupler and said first negative connection being disposed on said second sub-coupler.

8. The coupling of claim 7 wherein said first positive connection is identical in construction and symmetrical in position to said first negative connection.

9. The coupling of claim 1 wherein said second connection comprises a second positive connection disposed on said first sub-coupler and a second negative connection disposed on said second sub-coupler.

10. The coupling of claim 9 wherein said second positive connection is identical in construction and symmetrical in location to said second negative connection.

11. The coupling of claim 1, wherein the coupling is provided with at least two sets of fixing portions for connecting and fixing the first and second sub-couplers, and the fixing portions are symmetrically distributed along the axial center.

12. The coupling according to claim 1, wherein the first and second sub-couplers are respectively provided with positioning portions for positioning and fixing the driven shaft, the positioning portions having a structure symmetrical in an axial direction.

Technical Field

The invention relates to a connecting part, in particular to a coupler.

Background

The existing coupling product mainly has the form of spline, cancellation, diaphragm, direct bolt fastening, for example, a novel coupling disclosed in patent publication No. CN111927895A, which includes: the spring retainer ring comprises a first groove disc, a second groove disc, a hole disc, four shifting pins, four bushings and four spring retainer rings. The first groove disc and the second groove disc are similar in structure and are of a structure similar to a flange, and four n-shaped notches are uniformly distributed in the flange. The hole disc is of a short cylindrical structure, four step holes are uniformly distributed on the circumference of the hole disc, and the step holes face two end faces of the hole disc alternately. Four shifting pins and bushings are arranged in the step hole, face two end faces of the hole disc alternately and are matched with the n-shaped notches of the first groove disc and the second groove disc respectively, and the effect similar to that of the Oldham coupling is achieved.

However, the existing prior art designs have the disadvantage that the equipment needs to be moved or a large shaft end distance needs to be reserved in the process of mounting and dismounting the couplings, so that enough space is kept between the transmission shafts of the equipment, the couplings or spline blocks between the couplings are convenient to take out, and the influence on large-scale equipment and accurately positioned equipment is particularly obvious.

Therefore, there is a need for a coupling that solves the above-mentioned problems of the prior art.

Disclosure of Invention

The invention provides a coupler, which overcomes the defects of the prior art, the coupler is in a split design and is used for connecting a driving shaft and a driven shaft which are inconvenient to move, and when the coupler is used, connecting equipment does not need to be moved, so that the coupler is easy to detach and install.

In order to achieve the above object, the coupling of the present invention includes a first sub-coupling and a second sub-coupling, wherein the coupling has a first end face and a second end face which are oppositely arranged; the first end face is provided with a first connecting part for connecting a driving shaft, and the second end face is provided with a second connecting part for connecting the driven shaft; the first sub-coupler is detachably connected with the second sub-coupler.

The invention has the beneficial effects that: the coupler comprises a first sub coupler and a second sub coupler, and the coupler is provided with a first end face and a second end face which are oppositely arranged; the first end face is provided with a first connecting part for connecting a driving shaft, and the second end face is provided with a second connecting part for connecting a driven shaft; the first sub-coupler and the second sub-coupler are detachably connected, so that the driving shaft can drive the driven shaft to rotate, the coupling is used without moving a connecting device, and the coupling is easy to detach and install.

Further, the first connecting portion is a protruding portion provided on the first end surface, and the drive shaft has a receiving portion that receives the protruding portion to connect the drive shaft and the coupling. The beneficial effects are that: the first connecting portion is a protruding portion arranged on the first end face, the driving shaft is provided with an accommodating portion for accommodating the protruding portion, and the protruding portion is completely matched with the accommodating portion so as to connect the driving shaft with the coupler.

Further, the protruding portion is a tenon structure, and the tenon structure is arranged at the axis position of the first end face. The beneficial effects are that: the tenon structure is completely embedded with the accommodating part of the driving shaft, so that the twisting of the driving shaft in all directions can be effectively limited in the rotating process of the driving shaft.

Further, the second connecting portion is a recessed portion arranged on the second end face, and the driven shaft is provided with a protruding portion matched with the recessed portion so as to connect the driven shaft with the coupler. The beneficial effects are that: the second connecting portion is a recessed portion arranged on the second end face, and the driven shaft is provided with a protruding portion matched with the recessed portion so as to be connected with the coupler.

Further, the concave part is of a special-shaped groove structure, and the special-shaped groove structure is arranged at the axis position of the second end face. The beneficial effects are that: the driven shaft is of a special-shaped convex structure, in order to enable the concave part to completely accommodate the driven shaft, the concave part is of a special-shaped groove structure, meanwhile, the special-shaped groove structure is arranged at the axis position of the second end face, vibration of the driven shaft during rotation can be reduced, and dynamic balance is kept.

Furthermore, the special-shaped groove structure comprises a circular column hole groove structure and a waist-shaped groove structure, and the circular column hole groove structure and the waist-shaped groove structure are coaxial and are located on the same end face. The beneficial effects are that: the circular column hole groove structure and the waist-shaped groove structure are coaxially arranged and are arranged on the same end face, so that the driven mechanism can be smoothly embedded into the opposite-shaped groove structure.

Further, the first connecting portion comprises a first positive connecting portion and a first negative connecting portion, the first positive connecting portion is arranged on the first sub-coupler, and the first negative connecting portion is arranged on the second sub-coupler. The beneficial effects are that: the first positive connecting portion and the first negative connecting portion are used for connecting the driving shaft.

Furthermore, the first positive connecting part and the first negative connecting part are identical in structure and symmetrical in position. The beneficial effects are that: the contact ratio of the center of mass of the coupler and the adding rotation axis of the coupler is improved, the dynamic balance of the coupler is kept, and the service life is prolonged.

Further, the second connecting portion comprises a second positive connecting portion and a second negative connecting portion, the second positive connecting portion is arranged on the first sub-coupler, and the second negative connecting portion is arranged on the second sub-coupler. The beneficial effects are that: the second positive connecting portion and the second negative connecting portion are used for connecting the driven shaft.

Furthermore, the second positive connecting part and the second negative connecting part are identical in structure and symmetrical in position. The beneficial effects are that: the contact ratio of the center of mass of the coupler and the adding rotation axis of the coupler is improved, the dynamic balance of the coupler is kept, and the service life is prolonged.

Further, the shaft coupling sets up two sets of at least fixed parts for connect and fix first sub-antithetical couplet ware with the second sub-antithetical couplet ware, the fixed part is along axle center symmetric distribution. The beneficial effects are that: the fixing part is used for assembling and disassembling a positioning part so as to fix the first sub-coupler and the second sub-coupler.

Furthermore, the first sub-coupler and the second sub-coupler are respectively provided with a positioning part for positioning and fixing the driven shaft, and the positioning parts have symmetrical structures along the axis direction. The beneficial effects are that: and the first sub-coupler and the second sub-coupler are respectively provided with a positioning part for assembling and disassembling a positioning part so as to position and fix the driven shaft.

Drawings

FIG. 1 is a schematic view of a coupling in one embodiment of the present invention;

FIG. 2 is a schematic view of a coupling sidewall in an embodiment of the present invention;

FIG. 3 is a front view of a second end face of the coupling in one embodiment of the invention;

FIG. 4 is a cross-sectional view of FIG. 3 taken along a direction perpendicular to the end face via line B-B;

FIG. 5 is a schematic view of a through hole configuration and a threaded hole configuration of a coupling in an embodiment of the present invention;

FIG. 6 is a cross-sectional view of FIG. 5 taken along a line A-A and cut parallel to the end face;

FIG. 7 is a schematic view of a coupler alignment hole in accordance with an embodiment of the present invention;

fig. 8 is a cross-sectional view of fig. 7 cut along a direction parallel to the end face via line C-C.

The codes in the figures are respectively:

1-a coupler;

11-a first sub-connector; 111-via structures;

12-a second sub-coupler; 121-threaded hole configuration;

13-a first end face;

14-a second end face;

15-a first connection; 151-first positive connection; 152-a first negative connection;

16-a second connection; 161-a second positive connection; 162-a second negative connection; 163-circular post hole slot configuration; 164-kidney slot configuration;

17-positioning holes;

and 18-process round corners.

Detailed Description

In order to make the objects, technical solutions and advantages 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 accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. As used herein, the word "comprising" and similar words are intended to mean that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.

Aiming at the problems in the prior art, the coupler comprises a first coupler and a second coupler, wherein the coupler is provided with a first end face and a second end face which are arranged oppositely; the first end face is provided with a first connecting part for connecting a driving shaft, and the second end face is provided with a second connecting part for connecting a driven shaft; the first sub-coupler is detachably connected with the second sub-coupler.

Taking the coupling shown in fig. 1 as an example, the coupling includes a first sub-coupler 11 and a second sub-coupler 12, and the coupling has a first end face 13 and a second end face 14 which are oppositely arranged; the first end face 13 is provided with a first connecting part 15 for connecting a driving shaft, and the second end face 14 is provided with a second connecting part 16 for connecting a driven shaft; the first sub-coupler 11 is detachably connected with the second sub-coupler 12.

Preferably, as shown in fig. 2, a process fillet 18 is formed at the edge of the first end face 13 and the second end face 14, so that a sharp edge is avoided at the edge of the workpiece, and the assembly and operation safety is ensured.

In some specific embodiments, as shown in fig. 2, the first connecting portion 15 is a protruding portion 15 disposed on the first end surface 13, the driving shaft has a receiving portion for receiving the protruding portion 15, and the protruding portion 15 is completely fitted in the receiving portion to connect the driving shaft and the coupling 1.

In some preferred embodiments, as shown in fig. 2, the protrusion 15 is a tenon structure 15, the tenon structure 15 is disposed at an axial position of the first end surface 13, and the tenon structure 15 is completely engaged with the receiving portion of the driving shaft, so as to effectively limit the twisting of the driving shaft in all directions during the rotation of the driving shaft.

In some specific embodiments, as shown in fig. 1, the second connecting portion 16 is a recessed portion 16 disposed on the second end surface 14, and the driven shaft has a protruding portion adapted to the recessed portion 16 to connect the driven shaft with the coupling 1.

In some specific embodiments, as shown in fig. 3, the driven shaft is a shaped convex structure, in order to make the concave portion 16 fully accommodate the driven shaft, the concave portion 16 is designed as a shaped concave structure 16, and meanwhile, the shaped concave structure 16 is disposed at the axial center position of the second end surface 14, so as to reduce the vibration when the driven shaft rotates, and maintain the dynamic balance of the coupling 1.

In some specific embodiments, referring to fig. 3 and 4, the special-shaped groove structure 16 includes a circular pillar hole groove structure 163 and a waist-shaped groove structure 164, and the circular pillar hole groove structure 163 and the waist-shaped groove structure 164 are located on the same axis and the same end face, which ensures that the driven mechanism can be smoothly inserted into the special-shaped groove structure 16.

In some specific embodiments, as shown in fig. 2, the first connection portion 15 includes a first positive connection portion 151 and a first negative connection portion 152, the first positive connection portion 151 is disposed on the first sub-coupler 11, the first negative connection portion 152 is disposed on the second sub-coupler, and the first positive connection portion 151 and the first negative connection portion 152 are used for connecting the driving shaft.

Preferably, the first positive connecting portion 151 and the first negative connecting portion 152 have the same structure and are symmetrical in position, so as to improve the contact ratio between the center of mass of the coupler 1 and the rotation axis of the coupler 1, maintain the dynamic balance of the coupler 1 and prolong the service life.

In some specific embodiments, as shown in fig. 3, the second connection portion 16 includes a second positive connection portion 161 and a second negative connection portion 162, the second positive connection portion 161 is disposed on the first sub-coupler 11, the second negative connection portion 162 is disposed on the second sub-coupler 12, and the second positive connection portion 161 and the second negative connection portion 162 are used for connecting the driven shaft.

Preferably, the second positive connecting portion 161 and the second negative connecting portion 162 have the same structure and are symmetrical in position, so as to improve the contact ratio between the center of mass of the coupler and the rotation axis of the coupler, maintain the dynamic balance of the coupler and prolong the service life.

In some specific embodiments, referring to fig. 5 and fig. 6, the coupling 1 is provided with at least two sets of fixing portions for connecting and fixing the first sub-coupler 11 and the second sub-coupler 12, the fixing portions are symmetrically distributed along the axial center, the fixing portions are at least two through hole structures 111 that are symmetrical along the axial center and threaded hole structures 121 that are coaxially connected to the through hole structures, and the through hole structures 111 and the threaded hole structures 121 are used for mounting and dismounting positioning parts to fix the first sub-coupler 11 and the second sub-coupler 12.

Preferably, the through hole structure 111 is a countersunk head structure for assembling an inner hexagonal bolt and a nut, the inner hexagonal bolt has high strength, the inner hexagonal part is not easy to slip, and the operation is easy, and in addition, the countersunk head structure and the threaded structure are connected with each other by the hexagonal bolt and the nut, so that the first sub-coupling 11 and the second sub-coupling 12 are tightly connected together.

In some specific embodiments, referring to fig. 7 and 8, the first sub-coupler 11 and the second sub-coupler 12 are respectively provided with positioning portions 17 for positioning and fixing the driven shaft, the positioning portions have a structure symmetrical along the axial direction, and the positioning portions 17 are positioning hole structures for mounting and dismounting positioning screws to position the driven shaft.

In a particular embodiment, with reference to fig. 1-8, the coupling 1 has a length and a radial width of 34mm and 25mm, respectively; the diameters of the first end surface 13 and the second end surface 14 are both 25 mm; the radius of the process fillet 18 is 2 mm; the tenon structure 15 arranged on the first end surface 13 is in a sliding block shape, and the length, the width and the height of the tenon structure are respectively 20mm, 5mm and 8 mm; the diameter of the counter bore structure 111 arranged on the first sub-coupler 11 is 6.5mm, the depth is 13mm, and the depth and the radius of the nut accommodating space are 6mm and 5.5mm respectively; the external diameter of the thread of the threaded hole structure 121 is 6 mm; the diameter and the depth of the circular column hole groove structure 163 in the special-shaped groove structure 16 are respectively 8mm and 5mm, and the length, the width and the depth of the waist-shaped groove structure 164 in the special-shaped groove structure 16 are respectively 11.5mm, 5mm and 13 mm; the thread outer diameter of the positioning hole 17 is 4 mm.

Although the embodiments of the present invention have been described in detail hereinabove, it is apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it is to be understood that such modifications and variations are within the scope and spirit of the present invention as set forth in the following claims. Moreover, the invention as described herein is capable of other embodiments and of being practiced or of being carried out in various ways.