CN2148853Y

CN2148853Y - Diaphragm-type flexible coupling

Info

Publication number: CN2148853Y
Application number: CN 93225018
Authority: CN
Inventors: 蔡境顺
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-07
Filing date: 1993-01-07
Publication date: 1993-12-08
Anticipated expiration: 2003-01-07

Abstract

The utility model discloses a diaphragm-type flexible coupling used for transmission machinery, comprising a flange with a drive shaft, a flange with a driven shaft, screw bolts and screw caps, wherein, a set of superimposed diaphragms is arranged between the end surfaces of the two flanges, and even number of through holes are uniformly distributed on the diaphragms in a circumferential direction. Through half number of interphase through holes, the diaphragms and the flange with the drive shaft are fixedly connected by the screw bolts and the screw caps, through the other half number of interphase through holes, the diaphragms and the flange with the driven shaft are fixedly connected by the screw bolts and the screw caps, and the flexible connection of the two flanges is formed. The utility model with flexible transmission performance, simple structure, no abrasion and convenient maintenance can cause the transmission machinery to carry out starting, stoppage and reversible transmission instantly.

Description

Diaphragm-type flexible coupling

The utility model relates to a kind of flexible coupling that is used for gearing, particularly a kind of diaphragm type flexible coupling.

In the prior art, the coupling used of gearing has gear coupling, sprocket wheel coupling, has the elastic coupling flexible coupling of rubber or nylon washer etc.These coupling are in the moment of starting and shutdown; owing to will overcome gear or sprocket driving gap or overcome rubber or the distortion of nylon washer; exist certain rotating speed to lag behind; during as the need clockwise and anticlockwise; it is poor to exist bigger backhaul, so be not suitable for the gearing of the accurately instant starting of requirement, shutdown and clockwise and anticlockwise.Moreover existence is worn and torn in these coupling runnings, structure is complicated, maintenance is inconvenient.

The purpose of this utility model is to provide a kind of can make that gearing starts immediately, shutdown and clockwise and anticlockwise transmission and the coupling that still has the flexible drive performance, and makes that it is simple in structure, do not have wearing and tearing, easy to maintenance.

For achieving the above object, the utility model adopts following technical proposals: the same flange that connects driving shaft, the flange that connects driven shaft and bolt and the nut that connects two flanges of including with existing elastic coupling flexible coupling of this diaphragm type flexible coupling.Be characterized in: one group of superimposed diaphragm is arranged between two flange end face, the even number perforation that evenly circumferentially distributes is arranged on the diaphragm, alternate perforation by its half makes diaphragm fixedly connected with the driving shaft flange by bolt and nut, and other the alternate perforation of half makes diaphragm fixedly connected with the flange of driven shaft by bolt and nut by it.Like this, the transmission of this coupling is that the flange by driving shaft drives diaphragm through bolt nut, drives the flange of driven shaft by diaphragm through bolt nut again, and its transmission is positive drive, can start immediately, shutdown and clockwise and anticlockwise transmission.Simultaneously, diaphragm is in axially pliability distortion, thus this coupling axially have flexible.

The utility model has conspicuous advantage compared with prior art: the utility model can make that gearing promptly advances to start, shutdown and clockwise and anticlockwise transmission and still have axially flexiblely, does not have wearing and tearing, simple in structure, easy to maintenance during operation.

The drawing of accompanying drawing is described as follows:

Fig. 1 is that (wherein scheming a is sectional arrangement drawing for an embodiment's of the present utility model structural representation; Figure b and figure c all are A-A place sectional drawings among the figure a, and difform diaphragm is shown respectively).

Fig. 2 is second an embodiment's of the present utility model structural representation (wherein scheming e is sectional arrangement drawing, and figure d is an A-A place sectional drawing among the figure e).

Fig. 3 is the 3rd an embodiment's of the present utility model structural representation.

Fig. 4 is the 4th an embodiment's of the present utility model structural representation (wherein scheming f is A-O-A place sectional drawing among the figure g, and figure g is a B-B place sectional view among the figure f).

Label representative in the accompanying drawing: 1-flange, 2-bolt, 3-diaphragm, 4-flange, 5-nut, 6-packing ring, 7-lasso, 8-short tube, 9-intermediate spacers.

A most preferred embodiment of the present utility model is: referring to Fig. 1, between the flange 1 of driving shaft and the flange 4 of driven shaft one group of diaphragm 3 is arranged.According to the size of driving torque, select diaphragm quantity and thickness thereof, general one group of diaphragm has 1-40 sheet diaphragm, and every diaphragm thickness is the 0.3-2 millimeter, and diaphragm material is 1Cr ₁₈Ni ₉Ti, the diaphragm profile can be according to the quantity that adopts bolt nut and corresponding circle, square, hexagon and other polygon of being chosen as, evenly circumferentially 4-26 of distribution even number perforation on the diaphragm, there is center hole at the diaphragm center.Flange 1,4 with diaphragm 3 with bolt 2 with nut 5 fixed connection structures is: bolt 2 passes the perforation on the flange that is connected that is fixed, put a packing ring 6, pass the perforation on the diaphragm 3 then, put a lasso 7 again, lasso 7 passes the perforation on the flange that connects that is not fixed and leaves the gap, make the exterior edge face of lasso 7 expose the flange back face that is not fixed and connects simultaneously, piece together tight with nut 5 at last.With this Placement, the alternate perforation of half makes diaphragm 3 fixedly connected with the flange 1 of driving shaft by bolt 2 and nut 5 on diaphragm, and its other alternate perforation of half makes diaphragm 3 fixedly connected with the flange 4 of driven shaft by bolt 2 and nut 5, thereby makes two flanges 1,4 constitute flexible connection.Diaphragm 3 has 4 perforation shown in the figure b, and diaphragm is a square, and there is center hole at the center.Diaphragm 3 has 6 perforation shown in the figure c, and diaphragm is a hexagon, and there is center hole at the center.

Second embodiment of the present utility model is: referring to Fig. 2, when driving shaft and driven shaft diameter are big, adopt the flange 1 that inwardly dwindles, 4, thereby with the foregoing description difference be flange 1,4 with the fixedly connected knot of diaphragm 3 with bolt 2 and nut 5, it is that bolt 2 heads have one section thicker cylindrical body and can pass the perforation on the flange that connects that is not fixed and leave the gap, make the head hexagonal body of bolt 2 expose the flange back face that is not fixed and connects simultaneously, and bolt 2 passes the perforation of diaphragm 3, cover upper gasket 6, pass the perforation on the flange that connects that is fixed again, piece together tight with nut 5 at last.In Fig. 3, figure d illustrates diaphragm 3 for circular for the sectional view at A-A place among the figure e, and 8 perforation are arranged, and there is center hole at the center.

The 3rd embodiment of the present utility model is: referring to Fig. 3, between driving shaft flange 1 and driven shaft flange 4, have one section long apart from the time, between two flanges 1,4, adopt two ends to have the short tube 8 of flange, flange 1 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with the left end flange of short tube 8, and flange 4 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with the right-hand member flange of short tube 8.

The 4th embodiment of the present utility model is: referring to Fig. 4, between driving shaft flange 1 and driven shaft flange 4, there is one section during than short distance, between two flanges 1,4, adopt an intermediate spacers 9, flange 1 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with intermediate spacers 9, and intermediate spacers 9 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with flange 4.In Fig. 4, figure f is A-O-A place sectional drawing among the figure g, and figure g is B-B place sectional view among the figure f, and the shape of intermediate spacers 9 is shown, and there is center hole at its center.

Claims

1, the diaphragm type flexible coupling used of a kind of gearing, comprise the flange 1 that connects driving shaft, the flange 4 that connects driven shaft and bolt 2 and the nut 5 that connects two flanges 1,4, it is characterized in that between two flanges, 1,4 end faces one group of superimposed diaphragm 3 being arranged, the even number perforation that evenly circumferentially distributes is arranged on the diaphragm 3, alternate perforation by its half makes diaphragm 3 fixedly connected with the flange 1 of driving shaft by bolt 2 and nut 5, and other the alternate perforation of half makes diaphragm 3 fixedly connected with the flange 4 of driven shaft by bolt 2 and nut 5 by it.

2, diaphragm type flexible coupling according to claim 1, it is characterized in that flange 1,4 with diaphragm 3 with bolt 2 with nut 5 fixed connection structures is: bolt 2 passes the perforation on the flange that is connected that is fixed, put a packing ring 6, pass the perforation on the diaphragm 3 then, put a lasso 7 again, lasso 7 passes the perforation on the flange that connects that is not fixed and leaves the gap, makes the exterior edge face of lasso 7 expose the flange back face that is not fixed and connects simultaneously, pieces together tight with nut 5 at last.

3, diaphragm type flexible coupling according to claim 1, it is characterized in that flange 1,4 with diaphragm 3 with bolt 2 with nut 5 fixed connection structures is: bolt 2 heads have one section thicker cylindrical body and can pass the perforation on the flange that is connected that is not fixed and leave the gap, make the head hexagonal body of bolt 2 expose the flange back face that is not fixed and connects simultaneously, and bolt 2 passes the perforation of diaphragm 3, cover upper gasket 6, pass the perforation on the flange that connects that is fixed again, piece together tight with nut 5 at last.

4, diaphragm type flexible coupling according to claim 1, it is characterized in that having between two flanges 1,4 two ends to have the short tube 8 of flange, flange 1 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with the left end flange of short tube 8, and flange 4 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with the right-hand member flange of short tube 8.

5, diaphragm type flexible coupling according to claim 1, it is characterized in that an intermediate spacers 9 is arranged between two flanges 1,4, flange 1 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with intermediate spacers 9, and intermediate spacers 9 constitutes flexible the connection by bolt 2, nut 5 and diaphragm 3 with flange 4.

6, according to claim 1,2,3,4 or 5 described diaphragm type flexible couplings, it is characterized in that one group of diaphragm, 3 total 1-40 sheet diaphragms, every diaphragm thickness is the 0.3-2 millimeter, diaphragm material is 1Cr ₁₈Ni ₉Ti, the diaphragm profile is circle, square, hexagon and polygon, and the perforation on the diaphragm is 4-26, and there is center hole at the diaphragm center.