DE8415524U1 - Belt lock for belts of sieve chain conveyor belts - Google Patents

Description

Belt lock for belts of sieve chain conveyor belts

The invention relates to a belt lock for belts of sieve chain conveyor belts, in particular of root crop harvesting machines, in an embodiment according to the preamble of claim 1.

In a known belt lock of this type, which allows easy opening and closing and a connection of the belt ends creates, which is not significantly inferior to the resilience of the belt outside the lock area, are the Cross eyelets are an integral part of the ends of the straps and are formed by shaped pieces that are folded over in loops of the carrier belt, e.g. vulcanized in.

The invention is based on the object of creating a cheaper belt lock for belts of sieve chain belts, can be connected to the sections of endless belt goods. This object is achieved by the invention with the features of the characterizing Part of claim 1. With regard to further refinements reference is made to claims 2 to 8.

The belt lock according to the invention is for connecting belt ends no longer on pre-assembled, vulcanized into the ends Special straps with cross eyelets instructed, but with the help of the simple connectors for connection capable of simple sections of endless belted goods.

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This not only reduces the production costs of a sieve chain conveyor belt, but also enables the belt lengths to be easily adapted to dimensional fluctuations. in the If the belt ends are damaged, repairs can be carried out easily. Finally simplified Warehousing is based on a supply of simple, endless belt material.

In the drawing is a schematic, simplified representation illustrates an embodiment of the subject matter of the invention in more detail. In the drawing show:

Fig. 1 is a broken away perspective view

a sieve chain conveyor belt according to the invention in one on the connection area of a belt

restricted area, and

FIG. 2 is an exploded perspective view of FIG

Parts of the detail illustrated in FIG. 1.

The illustrated chain conveyor belt consists in detail of at least two parallel and spaced apart, Belt closed in operation to form an endless loop, one of which is shown in the drawing in the detail and is denoted by 1. The sieve chain conveyor belt, which is mainly used in root crop harvesting machines, includes also a plurality of chain rods 2, which are evenly spaced over the length of the belt 1 at their ends connected to the belt 1, e.g. riveted, are and are

extend transversely to the longitudinal direction of the belt. 30th

The ends of the belt 1 facing one another are connected to one another by means of a belt lock, which consists of an approximately H-shaped intermediate coupling piece 3 and consists of two connecting pieces 4.5. The intermediate coupling piece 3 comprises a Transverse leg 6 and arranged at its ends longitudinal legs 7, 8, which the transverse leg 6 facing end regions of

Connecting pieces 4.5 fork-shaped laterally grip around the longitudinal legs 7, 8 have cross bores 9, 10 and 11, 12 aligned in pairs for receiving the ends of further chain rods 13, 14 provided, the / the connection position of the parts according to FIG. 1 cross eyelets 15,16 of the connecting pieces 4,5 reach through. To the The fixing of the chain rods 13, 14 in the transverse bores 9, 10 and 11, 12 of the intermediate coupling piece 3 can be grub screw 17 may be provided, at least in the area of the transverse bores 10 and 12 act on the chain rods and can be fixed by means of a lock nut 18.

The connecting pieces 4.5 are U-shaped and have one. Arch part 19, 20 as well as legs connected to this 21,22 and 23,24, which can be compressed by means of clamping screws 25 with nut 26 and thereby in clamping engagement with the between they can be brought into the inserted end of the belt 1. Preferably, two clamping screws 25, 26 are per connection piece 4.5 provided, the bores 27,28 in the legs 21,22 and 23,24 and also pass through holes 29 on the belt ends.

20th

The legs 21,22 and 23,24 of the connecting pieces 4.5 are provided on the inside with anchoring lugs, which in the illustrated embodiment as transverse ribs 30 approximately triangular Cross-sectional shape are formed. The transverse ribs can each be offset from one another with a gap however, preferably in pairs opposite one another and have a protrusion height equal to the thickness of the outer rubber lining layer which corresponds to the belt 1 consisting of rubberized fabric layers. In the case of the belts commonly used for chain conveyor belts, the Cross ribs accordingly have a protrusion height of about 2 mm.

Accordingly, the anchoring projections can extend as far as the outer fabric layers of the belts 1, if the legs of the connecting pieces are brought together by means of the tensioning screws 25, 26 when the belt ends are

be pressed and come into tensioning engagement with the belt ends. Instead of two or, as shown, three pairs of transverse ribs 30, other anchoring projections can also be used Shaped shape can be provided, for example in the form of tapered knobs or the like. The transverse eyelets 15, 16 are from the arched areas 19.20 of the connecting pieces 4.5 and bounded on the inside by the transverse edges of the belt ends. The connectors 4.5 are preferably made of high-strength plastic, in particular

only
Polypropylene, which is not suitable to apply the necessary strength, but also to exert a lubricating effect for the ends of the chain rods 13, 14 acting as cross connectors, which form trunnions when a sieve chain conveyor belt is in operation, relative to which the connecting pieces can pivot to a limited extent. This lubricating effect increases the service life and reduces the generation of noise during operation,

Claims (1)

Busse & Busse patent attorneys Dipl.-Ing. Dr. iur. V. buses Dipl.-Ing. Dietrich Busse Company Franz Grimme Dipl.-Ing. Egon Bünemann Agricultural machinery factory GmbH & Co. KG D-4 5 ο ο Osnabrück D-2845 Damme GroBhandelsrina 6 Poetic ^ « Femspreeher (OS 41) St 60 81 and 58 60 BS Telegrams: patgewar Osnabrück May 21, 1984 DB / Ha Protection claims: 1. Belt lock for belts of sieve chain conveyor belts, I especially of root crop harvesters, with an approximately I H-shaped intermediate coupling piece, the cross leg of which is in I to provide a space between transverse eyelets at the ends 1 5 binding belt runs and the longitudinal leg of the transverse I Grip around the fork-shaped eyelets at the side and use them in pairs I aligned Qi "3rbores for receiving the ends of chain I rods are mistaken, each of which acts as a cross connector at the same time <j locking through a cross eyelet at one end of the strap, η ΊΟ characterized in that each transverse eyelet (15,16) from the curved part (19,20) of an approximately U-shaped connecting piece (4,5); is formed, the legs (21, 22; 23,24) by means of tensioning screws (25,26) in tensioning engagement with an end of the belt (1) inserted between them and are provided on the inside with anchoring lugs (30). \ 2. Belt lock according to claim 1, characterized in that I that transverse ribs (30) are provided as anchoring lugs 20 3. Belt lock according to claim 2, characterized in that the transverse ribs (30) have an approximately triangular cross-sectional profile. % 4. Belt lock according to claim 2 or 3, characterized geke nnif; 25 is characterized in that the transverse ribs (30) in pairs lie gegenp today. I * M (ItI t > ■ · § · · t ι ι ι ι • · · · ft · ι I 1 t 1 ■ · · * · · »· t ι - II - 5. Belt lock according to one or more of claims 1 to 4, characterized / that the anchoring lugs (30) have a projection height equal to the thickness of the Outer rubber layer corresponds to the belt (1). 5 6. Belt lock according to claim 5, characterized in that the projection height is about 2 mm. 7. Belt lock according to one or more of the claims 1 to 6, characterized in that the connecting pieces (4,5) are made of high-strength plastic. 8. Belt lock according to claim 7, characterized in that the connecting pieces (4,5) are injection-molded from polypropylene.