DE202007008092U1 - Quick-coupler e.g. retaining- or plug-in pin, for flexible shaft, has cylinder bolt that is displaced with sliding sleeve surrounding flange in recess, such that bolt is brought into recess and hose is unlocked by pressing down sleeve - Google Patents

Abstract

The coupler has an actuator provided at a flexible shaft and an actuator counterpart provided at a drive machine, where the counterpart is gripped by a strong, form-fitting connection. A flange (1) has an opening (2) pointing to a drive machine, where the opening is formed to receive a protective hose (11). A cylinder bolt (3) is arranged for locking the hose in an inner wall of the opening. The bolt is displaced with a sliding sleeve (4) surrounding the flange in a groove-like recess (5), such that the bolt is brought into the recess and the hose is unlocked by pressing down the sleeve.

Description

The The invention relates to a quick coupling for flexible shafts with protective hose for use on prime movers (propulsion engines) any Art.

Quick coupling systems for mounting and dismounting force-transmitting Flexible shafts are known in the art. they are coming especially for tools used that need to be changed frequently, in particular in the field of power transmission in mechanical engineering, e.g. for grinding, Drilling and milling machines, as well as orthopedic Drill rigs.

The flexible shaft and the protective tube are usually not connected directly to the drive or to the driven components, but connected by various couplings. Since the Wave core in contrast to the protective tube rotates, must wave and protective hose independently be fastened together. For Flexible waves are usually Shank, sleeve and hose couplings and couplings according to DIN42995 used, the one inside or outside thread exhibit. The known systems for flexible shafts are both plug-in and attachable and are threaded, threaded pins, Coupling surfaces, hexagonal surfaces, splines and Keilnute detained.

Of the Disadvantage of the known quick couplings consists in the first place in that this is a time consuming process Attaching the flexible shaft required. So must when using the coupling according to DIN42995 first the motor spindle locked with a retaining pin, the soul of the flexible shaft screwed onto the thread of the motor shaft and then the Protective hose can be pushed onto the motor flange. Similar are complicated other known types of fastening.

Further Disadvantages of the already known systems relate to the limited field of application of certain Quick couplings. The use of existing on or attachable Non-threaded quick couplings are in the field of use of high power shafts not or only partially possible because these have too high a wear.

The improper use known quick couplings, in particular so-called. Holding or plug pins in the aforementioned manner, can also be to considerable or even too life-threatening Cause injury, should, for example, the retaining pin after the connection of the flexible shaft not be removed again.

Of the The present invention is based on the object, a change flexible shafts with protective hose to any engine To enable kind on the one hand, as fast as possible and on the other hand at the highest possible Accident safety and protection of the connecting parts are carried out can.

to solution This object is according to the present Claim 1 proposes the use of a quick-change coupling, which on the housing an engine can be connected is, where at the prime mover a driver and at the flexible Shaft a driver counterpart (e.g. in the form of a face gear coupling, elastomer coupling, dog clutch or the like) are provided, which to form a rigid Connection form-fitting mesh, and the quick-change coupling a flange having an opening facing the prime mover, which is for receiving a protective tube is formed, and further on the inner wall the opening at least one cylinder pin for locking the protective hose is arranged, which can be actuated with an externally operable, to Axrichtung and the sliding sleeve surrounding the flange in such a groove-shaped Deepening can be postponed by depressing the sliding sleeve put the cylinder pin in the recess and the protective hose is unlocked.

In the dependent claims each advantageous embodiments of the invention are included.

Of the Advantage of the quick-change coupling according to the invention is in the surprising simple and advantageous assembly and disassembly force-transmitting flexible waves on a prime mover.

through One hand can be the sliding sleeve pushed in the direction of the drive machine, the protective hose unlocked and so the flexible shaft without problems and without danger and mounted be dismantled. It is for the replacement of the flexible shaft about that In addition, no other tools such as pins, keys or the like necessary.

By the simple construction can with the quick-change coupling according to the invention all types of flexible shafts, especially for high power shafts be used. It can be designed extremely robust and, above all, wear-resistant be.

A Further description of the invention and its advantages will be given below using exemplary embodiments, which are shown in drawing figures. Show it:

1 a preferred embodiment of the quick-change coupling according to the invention from the side view, partially broken.

2 a partially sectioned top view of a section of the quick-change coupling.

How out 1 can be seen inside the opening ( 2 ) of the preferably cylindrical flange ( 1 ) in a preferred embodiment, two cylinder pins ( 3 ) arranged in the starting position of the sliding sleeve ( 4 ) in a recess ( 12 ) of the protective tube ( 11 ) to grab. Since the cylinder pins ( 3 ) outside the flange ( 1 ) slightly protrude laterally, they are by pressing down on the flange ( 1 ) adjoining sliding sleeve ( 4 ) from its position in the direction of the prime mover ( 10 ), wherein the groove-shaped recesses ( 5 ) obliquely into the flange ( 1 ) are inserted so that the cylinder pins ( 3 ) by the oblique position of the depressions ( 5 ) are pressed outwards at the same time and thus the protective hose ( 10 ) unlock.

Below the cylinder pins ( 3 ) is preferably a retaining ring ( 6 ) arranged by means of one or more springs ( 7 ) the cylinder pins ( 3 ) or the sliding sleeve ( 4 ) to their starting position.

Furthermore, on the cylindrical flange ( 1 ) a base plate ( 9 ) arranged on the housing of the drive machine ( 10 ) is attached.

To ensure that the sliding sleeve ( 4 ) not from the flange ( 1 ), this is preferably with a reversible retaining ring ( 8th ), which after slipping the sliding sleeve ( 4 ) over the flange ( 1 ) is put over.

Located after the protective hose ( 11 ) the sliding sleeve ( 4 ) in its initial position, this can by means of a safety spring ( 16 ) below the sliding sleeve ( 4 ) are fixed.

1

cylindrically shaped flange

2

opening

3

Cylinder pin

4

sliding sleeve

5

grooved Vertiefunge

6

retaining ring

7

feathers

8th

circlip

9

baseplate

10

prime mover

11

Conduit

12

recess

13

takeaway

14

Driver counterpart

15

flexible wave

16

securing spring

Claims (9)

Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ), which on the housing of a drive machine ( 10 ) is connectable, wherein at the prime mover a driver ( 13 ) and on the flexible shaft ( 15 ) a driver counterpart ( 14 ) are provided, which interlock positively to form a rigid connection characterized in that the quick-change coupling a flange ( 1 ) with one to the prime mover ( 10 ) pointing opening ( 2 ), which for receiving a protective tube ( 11 ) is formed, and further on the inner wall of the opening ( 2 ) at least one cylinder pin ( 3 ) for locking the protective tube ( 11 ), which can be actuated with an externally actuatable, adjustable to the Axrichtung and the flange ( 1 ) surrounding sliding sleeve ( 4 ) in such a groove-shaped depression ( 5 ) can be moved by depressing the sliding sleeve ( 4 ) the cylinder pin ( 3 ) into the depression ( 5 ) and the protective tube ( 11 ) is unlocked. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to claim 1, characterized in that the flange ( 1 ) is preferably cylindrical. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized in that inside the opening ( 2 ) of the flange ( 1 ) in a preferred embodiment, two cylinder pins ( 3 ) are arranged. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized in that the cylinder pins ( 3 ) outside the flange ( 1 ) protrude laterally. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized in that the groove-shaped recesses ( 5 ) obliquely into the flange ( 1 ) are admitted. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized draws that below the cylinder pins ( 3 ) preferably a retaining ring ( 6 ) arranged by means of one or more springs ( 7 ) the cylinder pins ( 3 ) or the sliding sleeve ( 4 ) presses into its starting position. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized in that on the cylindrical flange ( 1 ) a base plate ( 9 ) is arranged. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized in that the flange ( 1 ) preferably with a reversible retaining ring ( 8th ), which after slipping the sliding sleeve ( 4 ) over the flange ( 1 ) is put over. Quick coupling for flexible shafts ( 15 ) with protective hose ( 11 ) according to one or more of the preceding claims, characterized in that the sliding sleeve ( 4 ) in its initial position after engagement of the protective tube ( 11 ) by means of a safety spring ( 16 ) below the sliding sleeve ( 4 ) is fixed.