DE202010012829U1 - Roller for a roller conveyor - Google Patents

Abstract

Roller (10) for non-positive and / or positive application to a rotatable shaft (6) of a roller conveyor, characterized in that the roller (10) is composed of at least two matable parts (1, 1 ', 1' ') which in each case the rotatable shaft (6) does not completely enclose the circumference, and in that the joinable parts (1; 1 '; 1' ') are constructed geometrically such that they can be fitted directly or indirectly on the rotatable shaft (6) so as to be slip-resistant and When assembled, completely enclose the shaft (6) azimuthally.

Description

The The invention relates to a roller for non-positive and / or positive application on a rotatable shaft of a roller conveyor.

such Casters for Waves are well known and are used, for example, by the Werner Vacuumsauger GmbH, D-53340 Meckenheim in their catalog 06/2010 under the name "RT" as transport wheels offered in different sizes.

Such Rollers are used on roller conveyors in the glass industry used. To glass plates between the individual production sections To be transported, these are either transported with vacuum lifting equipment or just on roller conveyors. These roller conveyors essentially exist Made of sturdy frames, usually bearing blocks on both sides and also in the middle and connected by steel shafts. The steel shafts then be with the wheels stocked. A roller conveyor of 1 m length It can therefore have 5 to 8 steel shafts and almost 100 rollers. The exchange damaged Casters are complex, because the rollers on the steel shafts with more or less high Violence is inflated or shrunk. Example: The shaft diameter is 30 mm, the hole diameter in the roller 27 mm. Would this be Hole diameter larger, there would be problems with a conclusive power transmission from the driven shaft to the roller as well as to the workpiece, which be transported by means of the roller conveyor should.

• – Lösen der Lageraufnahme auf der Rollenbahn;
• – Ausbau der Stahlwelle;
• – Zertrennen der installierten Laufrollen, z. B. Durchsägen mit einer Handsäge;
• – Reinigen der Welle;
• – Aufschlagen der Rollen (sehr großer Arbeitsaufwand);
• – Einbau der Stahlwelle.

An exchange of the rollers for maintenance and / or replacement is cumbersome and proceeds as follows:

• - Release the bearing seat on the roller conveyor;
• - removal of the steel shaft;
• - Cutting the installed rollers, z. B. sawing with a hand saw;
• - cleaning the shaft;
• - opening the roles (very large amount of work);
• - Installation of the steel shaft.

is the roller conveyor electrically driven, then the workload even higher.

In As a rule, the installed rollers should already be a relative have a long life. But there are also in the glass industry Applications where such rollers regularly cut during operation become. This is z. As is the case when so-called laminated glass panes produced become. The procedure here is as follows: The Assembling the laminated glass takes place in a clean room to to prevent that while of putting the disc contaminants between the two Slices arrive, such as hair, dust etc. The still individual Glass plates run through a washing machine and then in the cleaned state in a horizontal position on a roller conveyor directly into the clean room. In the clean room there is an overpressure; This is supposed to prevent the penetration of dust and other environmental influences be prevented. After the first glass pane the final position in clean room has reached (reference edge and stop), this is sucked by a lifting frame with vacuum cups on the top and raised. Now it works a second disc (usually with the same dimensions) of the washing machine in the clean room and also here on the reference edge and Attack. This plate thus has exactly the same position as the already raised plate. Now, one employee will do one Special foil roughly cut to the size of the plate, placed and positioned so that the edges of the film over the glass survive all sides. If this is the case, the lifting frame lowers the sucked glass plate and places them edge to edge on the lower glass plate.

Now the special foil lies between the two glass plates. So far not yet a fully automatic system, the protruding remnants of the film reliable This can usually be done by one or two employees carried out in the clean room by means of a sharp knife. To The sharp knife is pulled around the glass plate to the protruding Cut off the film. Are the glass plates very large, will This is done by two employees, each on one side of the roller conveyor stand, performed. When cutting off those rollers on which the glass plate is very common. or cut. Because both large and small glass plates be freed with the knife, so to speak, from the excess film, the rollers in this area are damaged by damage Not sure cut. Show all roles in the cutting area Therefore, cuts through these knives and must therefore from time to time be exchanged to avoid even here rubber residue get in any way between the glass plates, which then lead to rejects would. That's why these wheels should be too exchanged regularly but what about the maintenance department because of the associated high work and effort only very reluctantly performed becomes.

Object of the present invention is in contrast, with the simplest technical means inexpensive and inexpensive to provide a generic roller of the type described above, which does not require the described high effort by a simple and very fast change damaged rollers, especially a change of individual roles or even a half roll is made possible, whereby a high cost reduction is achieved because disassembly of the roller conveyor is no longer necessary.

Is solved this task in that the roller of at least two mating parts is constructed, which each for the rotatable shaft is circumferential not completely enclose, and that the joinable Parts are geometrically constructed so that they are slip-proof can be mounted directly or indirectly on the rotatable shaft and in the assembled state completely enclose the shaft azimuthally.

By the mating of the at least two joinable parts arises - like in a puzzle game - a Stable and fixed interlocking system.

Remarkable is about it In addition, the replacement of a single defective roller after previous technology, especially if the role installed centrally is, has the consequence that several still good rollers are destroyed have to, to get to the defective roller to replace them. By using the roller according to the invention this is now not necessary anymore. Each role can easily be swapped and it is also very easy, if needed, more roles on the Shaft to install.

at a particularly advantageous embodiment of the invention a slipping on the rotatable shaft mountable driver provided, on which the joinable parts of the roller also slip-resistant mountable, so when turning the shaft a complete power transmission from the shaft to the roller.

preferred Further developments of this embodiment are characterized in that the driver of several, preferably two, segments is built, the slip-proof directly on the rotatable Shaft are mountable and in the assembled state, the shaft azimuthally Completely enclose.

Regarding a simple assembly and disassembly is an embodiment of this Developments advantageous in which the segments of the driver can be fastened by means of screws to the rotatable shaft.

For an optimal power transmission from the rotating shaft to the roller has the driver in preferred variants of the above developments one or more Pins which fit into corresponding receiving holes provided in the roller and the power transmission from the rotating shaft to the roller support.

Preferably are two on the rotatable shaft in the axial direction of the shaft side by side arranged driver provided on both sides of the roller, together fix the roller in the axial direction of the shaft.

In prove the practice Embodiments of the invention, in which the carriers made of metal, in particular made of steel.

alternative or additionally to the developments described above, one or more Carrier, it may be advantageous if the joinable parts the roller with each other and with the rotatable shaft - if necessary additionally - by an adhesive are attached.

Further - alternative or additional - options for fixation can be realized by the fact that on the caster on her rotatable shaft facing inner surface in the assembled state the shaft has directly encompassing circular inner hole, which provided with at least one bulged in the direction of wave convex curvature is in the state mounted on the shaft of the roller in one accordingly on the outer surface of the Shaft provided recess or groove engages.

All are particularly simple and inexpensive embodiments the invention in which the roller of exactly two mating parts is constructed.

at In another advantageous embodiment, the joinable parts constructed identically in terms of their geometry. This is just a single tool for roll production required.

The secure fixation of the roller according to the invention on the shaft also guarantee embodiments, where the roller or possibly the driver on the the rotatable shaft facing inner surface in the assembled state the Has wave directly encompassing circular inner hole whose Diameter slightly smaller than the outside diameter the rotatable shaft, so after assembly, the roller taut and sits on the shaft without slipping.

Likewise, a particularly secure fixing as well as a simple assembly and disassembly of the roller on the shaft are embodiments of the invention, in which the mating parts of the roller each have an azimuthal have protruding nose and a recess which is geometrically designed so that the protruding nose of a directly adjacent in the assembled state part of the roller can engage positively.

at Another preferred embodiment of the invention are the joinable Parts of the roller of an elastic material, in particular Rubber, hard rubber or plastic constructed.

Especially draw advantageous developments of this embodiment finally characterized in that the joinable parts of the roller respectively have a positive shoulder disposed at an azimuthal end, in the mounted state of the roller on the respective immediately adjacent part of the roller presses and ensures that after installation the roller no slot in the elastomer is formed and an additional Tension is present ("clip-on Technology").

Further Features and advantages of the invention will become apparent from the following detailed description of embodiments of the invention based the figures of the drawing, the essential to the invention details shows, as well as from the claims. The individual features can each individually for one or more in any combination at variants be realized the invention.

In the schematic drawing are embodiments of the invention illustrated, which are explained in more detail in the following description.

in the Show individual:

• a) die Laufrolle mit beiderseitigen Mitnehmern auf der Welle einer Rollenbahn montiert in teilweiser Schnittansicht;
• b) die zusammenfügbaren Teile der Laufrolle nach a) in schematischer Draufsicht in Richtung der Welle;
• c) ein zweiteiliger Mitnehmer in zusammengeschraubtem Zustand mit Blick in Richtung der Wellenachse in teilweise geschnittener Ansicht;
• d) den Mitnehmer nach c) mit Blickrichtung senkrecht zur Wellenachse;
• e) eine teilweise Schnittansicht auf die zusammengefügten Teile der Laufrolle aus a);
• f) einen weiteren Mitnehmer wie in d) in teilweise geschnittener Ansicht;

1 schematic views of an embodiment of the roller according to the invention, specifically:

• a) the roller with mutual carriers mounted on the shaft of a roller conveyor in partial sectional view;
• b) the joinable parts of the roller according to a) in a schematic plan view in the direction of the shaft;
• c) a two-piece driver in a bolted state with a view in the direction of the shaft axis in a partially sectioned view;
• d) the driver according to c) with a view perpendicular to the shaft axis;
• e) a partial sectional view of the assembled parts of the roller of a);
• f) another driver as in d) in a partially sectioned view;

2a a schematic view of a variant of a matable part as in 1 but with convex curvature for fixation in a groove or indentation of the shaft; and

2 B as 2a but with a concave recess leading radially away from the shaft into which a corresponding projection provided on the outer surface of the shaft in the state mounted on the shaft can engage.

In the figures of the drawing, in particular in 1a and 1e , is a roller 10 for force and / or positive application to a rotatable shaft 6 shown, which is part of a - not specifically shown in the figures - roller conveyor with many such rollers on rotatable shafts.

The roller according to the invention 10 distinguishes itself from hitherto known rollers used on conventional roller conveyors in that the roller 10 from at least two parts that can be joined together 1 ; 1'; 1'' is constructed, which in each case for the rotatable shaft 6 circumferentially does not completely enclose, and that the joinable parts 1 are geometrically constructed so that they are slip-proof directly or indirectly on the rotatable shaft 6 can be mounted and in the assembled state, the shaft 6 completely enclose azimuthally. In the embodiments of the invention shown in the drawing, the roller 10 each of exactly two joinable parts 1 ; 1'; 1'' built up. In other embodiments, not shown, however, in principle any number of joinable parts can each build up a roller according to the invention. Furthermore, in the illustrated embodiments, the joinable parts 1 ; 1'; 1'' identical to each other in terms of their geometry, which certainly has considerable manufacturing advantages, but is not absolutely necessary.

Like from the 1a . 1c . 1d and 1f Recognizable, can slip on the rotatable shaft 6 mountable carrier 3 be provided, on which the joinable parts 1 ; 1'; 1'' the roller 10 also slip-proof mountable, so when turning the shaft 6 a complete power transmission from the shaft 6 on the roller 10 he follows. This driver 3 can be constructed of several - in the embodiment shown in each case two - segments, the slip-proof directly on the rotatable shaft 6 can be mounted and in the assembled state, the shaft 6 completely enclose azimuthally. In the illustrated embodiment, two are on the rotatable shaft 6 in the axial direction of the shaft 6 arranged parallel to each other driver 3 provided, from both sides together the caster 10 between them.

The segments of the drivers 3 are by means of screw 4 screwed against each other and thereby by means of clamping slip-proof on the rotatable shaft 6 fixable. In addition, the drivers point 3 each pins 5 on that in corresponding in the caster 10 provided receiving holes 2 fit and the power transmission from the rotating shaft 6 on the roller 10 support, as in the 1c to 1f is clearly recognizable.

In general, the takers 3 made of metal, in particular made of steel.

In the in the 1b . 2a and 2 B shown joinable parts 1 ; 1'; 1'' a roller according to the invention 10 are each an azimuthal protruding nose 7 as well as a recess 8th provided, which are geometrically designed so that the protruding nose 7 a directly adjacent in the assembled state part 1 ; 1'; 1'' the roller 10 positively in a recess 8th can engage.

If the joinable parts 1 ; 1'; 1'' the roller 10 are constructed of an elastic material, in particular rubber, hard rubber or plastic, the joinable parts 1 ; 1'; 1'' the roller 10 to further increase the slip resistance on the shaft 6 each one arranged at an azimuthal end positive paragraph 9 have, in the mounted state of the roller 10 on the immediately adjacent part of the roller 10 pushes, leaving the shaft 6 clasped non-positively.

Another safeguard against slipping on the shaft 6 one obtains thereby, that the roller 10 or optionally the driver 3 on the rotatable shaft 6 facing inner surface in the assembled state, the shaft 6 having directly encompassing circular inner hole whose diameter is slightly smaller than the outer diameter of the rotatable shaft 6 so that after mounting again a clasping force with respect to the shaft 6 consists.

Additionally or alternatively, the joinable parts 1 ; 1'; 1'' the roller 10 with each other and with the rotatable shaft 6 be attached by means of an adhesive. Also, the joinable parts 1 ; 1'; 1'' glued to the joints with special adhesive to give the overall association a higher mechanical strength.

Another fixation measure may be that on the roller 10 on her the rotatable shaft 6 facing inner surface in the assembled state, the shaft 6 having directly encompassing circular inner hole, which with at least one in the direction of shaft 6 dished convex curvature 1'a that's on the shaft 6 mounted state of the roller 10 in a corresponding manner on the outer surface of the shaft 6 provided recess or groove engages ( 2a ) or which at least one radially from the shaft 6 away leading concave recess 1''b is provided in the one on the shaft 6 mounted state of the roller 10 on the outer surface of the shaft 6 provided corresponding bulge engages ( 2 B ).

Before installing the roller 10 first on the bare shaft 6 a first driver 3 installed next to a designated position, on which a roller 10 is needed. Both halves 1 ; 1'; 1'' be above and below the wave 6 held and screwed. The screws 4 of the first driver 3 are then easily attracted. Now a half roll will be 1 ; 1'; 1'' on the underside of the drivers 3 stuck and pressed. Then follows the corresponding second roller half 1 ; 1'; 1'' , This is above on the first driver 3 stuck and pressed. Now is a roller 10 at the desired position on the shaft 6 appropriate. So that it does not dissolve by pressure and falls off, is now again from the bottom and the top of the shaft 6 Another driver 3 Installed. Both halves will go over the shaft 6 held and loosely screwed together. Then the second driver 3 with his pencils 5 in the holes provided 2 the roller 10 pressed. Both screws 4 the second driver 3 are also tightened. Now turns the wave 6 , the power transmission runs over the two installed drivers 3 and their pins 5 in the roller 10 ,

Will be the driver 3 through the two screws 4 on a wave 6 screwed, this results in a positive and very strong connection on the shaft 6 about the forces of the drive from the shaft 6 on the driver 3 transfer. The driver 3 can be adjusted at any time by loosening the screws 4 open and remove or the position on the shaft 6 is adjustable.

When assembled, the force becomes the shaft 6 drives through the drivers 3 and their pins 5 which are in the holes 2 the roller 10 are plugged in completely and without loss of performance on the caster 10 transfer.

LIST OF REFERENCE NUMBERS

1; 1'; 1''

joinable parts (Pulley halves)

1'a

convex bulge

1''b

concave recess

2

Receiving holes (for the pins of the driver)

3

takeaway

4

screw (of the driver)

5

pencils (of the driver)

6

wave

7

nose

8th

recess

9

positive paragraph

10

caster

Claims (15)

Roller ( 10 ) for force and / or positive application to a rotatable shaft ( 6 ) of a roller conveyor, characterized in that the roller ( 10 ) of at least two joinable parts ( 1 ; 1'; 1'' ), which in each case the rotatable shaft ( 6 ) do not completely enclose the circumference, and that the joinable parts ( 1 ; 1'; 1'' ) are constructed geometrically such that they are slip-proof directly or indirectly on the rotatable shaft ( 6 ) are mountable and in the mounted state, the shaft ( 6 ) completely enclose azimuthally. Castor according to claim 1, characterized in that a non-slip on the rotatable shaft ( 6 ) mountable driver ( 3 ) is provided, on which the joinable parts ( 1 ; 1'; 1'' ) of the roller ( 10 ) are also slip-resistant mounted, so when turning the shaft ( 6 ) a complete power transmission from the shaft ( 6 ) on the roller ( 10 ) he follows. Castor according to claim 2, characterized in that the driver ( 3 ) is composed of a plurality, preferably two, segments which are slip-proof directly on the rotatable shaft ( 6 ) are mountable and in the mounted state, the shaft ( 6 ) completely enclose azimuthally. Castor according to claim 3, characterized in that the segments of the driver ( 3 ) by means of screws ( 4 ) on the rotatable shaft ( 6 ) are fastened. Castor according to one of claims 2 to 4, characterized in that the driver ( 3 ) one or more pens ( 5 ) in corresponding in the roller ( 10 ) receiving holes ( 2 ) and the power transmission from the rotating shaft ( 6 ) on the roller ( 10 ) support. Castor according to one of claims 2 to 5, characterized in that two on the rotatable shaft ( 6 ) in the axial direction of the shaft ( 6 ) adjacent drivers ( 3 ) are provided, which together the roller ( 10 ) wear. Castor according to one of claims 2 to 6, characterized in that the drivers ( 3 ) are made of metal, in particular of steel. Castor according to claim 1, characterized in that the joinable parts ( 1 ; 1'; 1'' ) of the roller ( 10 ) with each other and with the rotatable shaft ( 6 ) are attached by means of an adhesive. Castor according to one of the preceding claims, characterized in that on the roller ( 10 ) on its rotatable shaft ( 6 ) facing inner surface in the assembled state, the shaft ( 6 ) has a directly surrounding circular inner hole, which with at least one in the direction of shaft ( 6 ) convex convex curvature ( 1'a ), which is on the shaft ( 6 ) mounted state of the roller ( 10 ) in a corresponding manner on the outer surface of the shaft ( 6 ) provided recess or groove or which at least one radially from the shaft ( 6 ) leading concave recess ( 1''b ), in which one on the shaft ( 6 ) mounted state of the roller ( 10 ) on the outer surface of the shaft ( 6 ) engages provided corresponding bulge. Castor according to one of the preceding claims, characterized in that the roller ( 10 ) from exactly two joinable parts ( 1 ; 1'; 1'' ) is constructed. Castor according to one of the preceding claims, characterized in that the joinable parts ( 1 ; 1'; 1'' ) are constructed identically in terms of their geometry. Castor according to one of the preceding claims, characterized in that the roller ( 10 ) or optionally the driver ( 3 ) on the rotatable shaft ( 6 ) facing inner surface in the assembled state, the shaft ( 6 ) directly encompassing circular inner hole whose diameter is slightly smaller than the outer diameter of the rotatable shaft ( 6 ). Castor according to one of the preceding claims, characterized in that the joinable parts ( 1 ; 1'; 1'' ) of the roller ( 10 ) each an azimuthally projecting nose ( 7 ) and a recess ( 8th ), which is geometrically designed so that the protruding nose ( 7 ) of a directly adjacent in the assembled state part ( 1 ; 1'; 1'' ) of the roller ( 10 ) can engage positively. Castor according to one of the preceding claims, characterized in that the joinable parts ( 1 ; 1'; 1'' ) of the roller ( 10 ) are constructed of an elastic material, in particular rubber, hard rubber or plastic. Castor according to claim 14, characterized in that the joinable parts ( 1 ; 1'; 1'' ) of the roller ( 10 ) one at an azimu talen end arranged positive paragraph ( 9 ), which in the assembled state of the roller ( 10 ) on the immediately adjacent part of the roller ( 10 ) presses.