CN113202875A

CN113202875A - Novel coupler

Info

Publication number: CN113202875A
Application number: CN202110556124.8A
Authority: CN
Inventors: 金桥; 林大兴; 雷万荣; 张晓锋
Original assignee: Jiangsu Jihua Precision Machinery Co ltd
Current assignee: Jiangsu Jihua Precision Machinery Co ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-08-03

Abstract

The invention discloses a novel coupler which comprises an upper half coupler, a lower half coupler, a driving shaft and a driven shaft, wherein the upper half coupler and the lower half coupler are semicircular, semicircular placing grooves are concentrically formed in the inner sides of the upper half coupler and the lower half coupler, the driving shaft and the driven shaft are fixed in the placing grooves through connecting keys, a first key groove and a second key groove, and the connecting keys are arranged in the first key groove and the second key groove. According to the invention, centering adjustment is not needed, and centering can be completed only by placing the driving shaft and the driven shaft in the placing groove, so that dislocation and deformation can be prevented in the running process of the coupler.

Description

Novel coupler

Technical Field

The invention relates to the technical field of couplings, in particular to a novel coupling.

Background

The common coupler in the mechanical manufacturing industry is used for connecting two shafts in different mechanical structures to realize power transmission, the coupler is generally composed of two halves connected with a driving shaft and a driven shaft respectively, the two halves are required to be fixedly connected through a connecting structure, the two halves of the coupler are required to be centered and adjusted in position when connected, an axis screw hole is generally required to be searched for in centering adjustment, centering adjustment is difficult, operation is complex, position accuracy is not high, the center of mass or an inertia main shaft of the coupler is prone to be misaligned with a rotating axis of the coupler, unbalanced centrifugal inertia force, centrifugal inertia coupling force and dynamic deflection vibration mode are prone to be generated during operation, shafting vibration is caused, deformation and displacement can be generated during serious operation, and the transmission effect of a mechanism and the service life of the coupler are influenced.

Disclosure of Invention

The present invention is directed to a novel coupling, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a novel coupler, includes first coupler, second coupler, driving shaft and driven shaft, first coupler with second coupler is semi-circular, and semicircular standing groove has all been seted up with one heart to its inboard, first keyway has been seted up at the upper and lower both ends of driving shaft and driven shaft link, the second keyway has been seted up on the standing groove, first coupler with pass through bolt fastening between the second coupler, the radial setting of driving shaft is followed to the bolt, first coupler with after second coupler merges, driving shaft and driven shaft pass through connection key, first keyway and second keyway and fix in the standing groove, the connection key sets up in first keyway and second keyway.

Preferably, the radius of the driving shaft and the radius of the driven shaft are equal to the radius of the placing groove.

Preferably, the upper half coupling and the lower half coupling are provided with bolt holes in fit connection with bolts, and the upper half coupling is provided with avoidance grooves for arranging bolt heads.

Preferably, eight bolt holes are formed in the driving shaft and the driven shaft, and the eight bolt holes are symmetrically formed in the front side and the rear side of the driving shaft and the driven shaft.

Preferably, the depth of the first key groove is equal to that of the second key groove, and the height of the connecting key is equal to the sum of the depths of the first key groove and the second key groove.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, centering adjustment is not needed, and centering can be completed only by placing the driving shaft and the driven shaft in the placing groove, so that dislocation and deformation can be prevented in the running process of the coupler, and the working stability of the coupler is enhanced.

2. According to the invention, the driving shaft and the driven shaft are fixed in the placing groove through the connecting keys, the first key groove and the second key groove, and the upper half coupling and the lower half coupling are fixed through the bolts, so that the structure is simple, the installation is convenient, and during the operation, the two connecting keys are simultaneously stressed, and the placing groove of the coupling and the shaft surface of the shaft are mutually tightly held, so that the bearing capacity of larger torque force can be realized.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the overall structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

fig. 4 is a cross-sectional view a-a of fig. 2 of the present invention.

In the figure: 1 upper half coupling, 2 lower half coupling, 3 driving shaft, 4 driven shafts, 51 first key groove, 52 second key groove, 6 connecting keys, 7 placing grooves, 8 bolts, 9 avoiding grooves and 10 bolt holes.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a novel coupler, including first half-coupling 1, lower half-coupling 2, driving shaft 3 and driven shaft 4, first half-coupling 1 and lower half-coupling 2 are semi-circular, semicircular standing groove 7 has all been seted up with one heart to its inboard, first keyway 51 has been seted up at the upper and lower both ends of driving

shaft

3 and 4 links of driven shaft, second keyway 52 has been seted up on standing groove 7, it is fixed through bolt 8 between first half-coupling 1 and the lower half-coupling 2, bolt 8 is along the radial setting of driving shaft 3, first half-coupling 1 and lower half-coupling 2 merge the back, driving shaft 3 and driven shaft 4 are through connecting key 6, first keyway 51 and second keyway 52 are fixed in standing groove 7, connecting key 6 sets up in first keyway 51 and second keyway 52.

The radius of the driving shaft 3 and the radius of the driven shaft 4 are equal to the radius of the placing groove 7.

The upper half coupling 1 and the lower half coupling 2 are provided with bolt holes 10 which are connected with the bolts 8 in a matched mode, and the upper half coupling 1 is provided with an avoiding groove 9 for arranging bolt heads.

Eight bolt holes 10 are symmetrically arranged on the front and rear sides of the driving shaft 3 and the driven shaft 4.

The first key groove 51 and the second key groove 52 have the same depth, and the height of the connecting key 6 is the sum of the depths of the first key groove 51 and the second key groove 52. In this embodiment, the depth of the first key groove 51 and the second key groove 52 is 4mm, and the height of the connection key 6 is 8 mm.

The working principle of the invention is as follows: the invention can be arranged between a speed reducer and a motor, between the speed reducer and the speed reducer or between the speed reducer and processing equipment, the driving shaft 3 and the driven shaft 4 are fixed in the placing groove 7 through the connecting key 6, the first key groove 51 and the second key groove 52, the driving shaft 3 is arranged at the left side of the placing groove 7, the driven shaft 4 is arranged at the right side of the placing groove 7, and the upper half coupling 1 and the lower half coupling 2 are fixed through the bolt 8. The novel coupler can embody the advantages of the novel coupler, the replacement time is short, and in operation, the placing grooves 7 of two connecting keys 6 stressed simultaneously and the coupler and the axial surface of the shaft are tightly held with each other, so that the coupler can bear larger torque force, the working stability of the coupler is enhanced, the bearing capacity is more than five times of that of the traditional coupler, and the service life is also more than five times of that of the common coupler.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel shaft coupling which is characterized in that: comprises an upper half coupling (1), a lower half coupling (2), a driving shaft (3) and a driven shaft (4), wherein the upper half coupling (1) and the lower half coupling (2) are semicircular, semicircular placing grooves (7) are concentrically formed in the inner sides of the upper half coupling and the lower half coupling, first key grooves (51) are formed in the upper end and the lower end of the connecting end of the driving shaft (3) and the driven shaft (4), second key grooves (52) are formed in the placing grooves (7), the upper half coupling (1) and the lower half coupling (2) are fixed through bolts (8), the bolts (8) are arranged along the radial direction of the driving shaft (3), after the upper half coupling (1) and the lower half coupling (2) are combined, the driving shaft (3) and the driven shaft (4) are fixed in the placing grooves (7) through connecting keys (6), the first key grooves (51) and the second key grooves (52), the connecting key (6) is arranged in the first key groove (51) and the second key groove (52).

2. A novel coupling according to claim 1, wherein: the radius of the driving shaft (3) and the radius of the driven shaft (4) are equal to the radius of the placing groove (7).

3. A novel coupling according to claim 1, wherein: the upper half coupling (1) and the lower half coupling (2) are provided with bolt holes (10) which are connected with bolts (8) in a matched mode, and the upper half coupling (1) is provided with an avoiding groove (9) for arranging a bolt head.

4. A novel coupling according to claim 3, wherein: eight bolt holes (10) are symmetrically formed in the front side and the rear side of the driving shaft (3) and the driven shaft (4).

5. A novel coupling according to claim 1, wherein: the depths of the first key groove (51) and the second key groove (52) are equal, and the height of the connecting key (6) is the sum of the depths of the first key groove (51) and the second key groove (52).