DE10330479A1 - Flat-top chain for chain conveyors has gudgeon pins shaped to be turned into locking position, and turned into opposite direction for release and dismantling of chain - Google Patents

Abstract

The flat-top chain has links (7), each with two rows of interlocking gudgeons (8a,b,c), which are locked together by gudgeon pins (1). The pins are turned into locking position, in which the axial position of the pins in the gudgeons and their rotary positions are fixed. Turning in the opposite direction releases the pins to dismantle the chain. Each pin has a functional projection (2,4), e.g. a head. In a first position, a head is inserted into a corresponding aperture in the gudgeons, and in a second position, it is axially locked in the aperture. The head is asymmetrical and has a slot.

Description

The The invention relates to a hinge belt according to the preamble of claim 1.

in the Plant construction and materials handling a distinction is made between two types of transport chains: Cardan chains and hinge bands.

Kardangelenkketten are chains in which the individual chain links are centered in the center under a transport surface gimbals are coupled together. Kardanic chains have the advantage that they in a certain width range of the chain support surface a can always follow constant radius, but which causes that the support segments must be shaped according to the radius, d. h., tapering towards the ends, causing in the respective outer arch openings which pose a security risk to both operating personnel as well for transport goods forms. Here are then elaborate formations make, as z. B. teeth of the bearing surfaces or appropriate relining, in turn, one above the other to grab.

Flat-top chains however, are produced in different widths, where the individual chain links by means of multiple hinge eyes mutually interlock and with each other by hinge pins are connected. Is it the hinge eyes are circular Holes through which the hinge pins are set so are suitable These chains are exclusive for the Straight running and thus only as straight transport chains. Similar to Conveyor belts.

Around correct the directional stability with wide hinge strap chains can, The hinge eyes are in the longitudinal direction the chain formed at least on one side as slots. At narrower Hinge chain chains thus gives the possibility of not chain only in straight-ahead, but also in a radius or arc too lead, where the radius in dependence from the chain width, but also from the length of the slot of the hinge eye depends.

A generic hinge band of this kind is in the DE 693 21 957 T2 or the EP 0 652 743 B1 described and illustrated. The hinge belt disclosed in this document has a relatively large width, so that there is also only a relatively large radius, with which this chain can be deflected. The respective chain links of the hinge band of this document have mutually directed projections - with hinge eyes - on, with one side of the mutually facing projections have circular holes, while the oppositely directed projections are provided with slots. In the first paragraph of page 6 of the DE 693 21 957 T2 It can also be seen that the holes could also be formed as slots, but in principle does not take place because between the hole and connecting rod hinge pin an interference fit is achieved in order to fix the connection rod in the bore in the axial direction over the pure frictional connection.

In the case that a loose fit is selected between the connecting rod and bore, are - so in the DE 32 41 632 C2 - The connecting rods designed to be shorter than the maximum width of the chain and each end bushes engaged or arranged re formschlussschlusswirkenden components which close the bore in the outer region of the chain link and thus set the connecting rod form-fitting axially.

Of the DE 32 41 632 C2 It can also be seen that at the end in the hinge axis bore a dowel is used, which is locked in a form-fitting manner behind a slot. With this locking of the anchor a non-destructive disassembly of the hinge pin is no longer possible.

It is also known after mounting the hinge pin in the recess to depress a correspondingly shaped flat-shaped part, which is either in a Ring groove of a hinge pin engages or the bolt also cut so short that it is the front side of the inserted Flat part rests. These compounds are virtually insoluble, in particular in the installed state of such a chain in a conveyor system.

outgoing from the generic state In technical terms, it is the object of the invention, the hinge belt in such a way that it is possible to simplify the chain Way to assemble and disassemble, i. to assemble the chain links and to solve each other.

These Task solves the invention by the subject matter of claim 1.

advantageous Embodiments of the invention are specified in the subclaims.

According to claim 1, the hinge pins are formed such that they can be brought by rotation in a locking position in which the axial position of the hinge pin is fixed in the hinge eyes and the rotational position, wherein the Hinge bolts are released by turning back from the locked position to disassemble the chain. By this measure, the locking of the hinge pin is realized on the chain links in the simplest way by a rotational movement, so that both the assembly and disassembly can be done without much effort. Preferably, the hinge pin is completely or partially removed from the chain link.

Preferably the at least one hinge pin has at least one for this purpose Functional projection on which in a first rotational position in axial Direction in a correspondingly shaped recess on the Hinged eyes insertable and axially lockable in a second rotational position in the recess is. Thus, the individual chain links are connected via hinge pins, which are easy to assemble and disassemble, in particular for service purposes when installed, single worn To change links or in case of stretching the chain links the conveyor chain to shorten.

there can the at least one functional advantage in the simplest way formed as a head at one axial end of the hinge pin be, for the clamping engagement in a peripheral recess of the hinge eyes is designed.

Alternative / optional can the at least one functional advantage but also as at least a radially projecting from the hinge pin locking pin be formed, which is adapted to engage in a corresponding groove the hinge eyes is designed.

It It is also conceivable that the hinge pin as functional protrusions both the head and at least one, preferably two of the locking pins and that at the hinge eyes both the edge recess as well as at least one of the grooves is formed. Through this particularly preferred variant, it is possible the functions of the lock the hinge pin in the axial direction and the securing of the hinge pin to separate them from each other in a very simple way.

Especially it is preferred to be parallel to the edge depression on opposite Edges of the Hinge eyes each one of the grooves for engagement of the locking pin and the head of the hinge pin is asymmetrical (e.g., eccentric to the central axis).

Around to ensure easy assembly and disassembly, For example, the head of the hinge pin may have an actuating contour, preferably a slot, be provided. This actuating contour can be a slot or a Mehrkantausnehmung be, for example, for attachment a screwdriver using a flat blade or a corresponding polygonal tool. On the so equipped Hinge pin can do this for pivoted a corresponding lock in the simplest way become.

The Hinge chain links are designed so that corresponding bolts right or left on one of the hinge eyes are arranged can. The entire chain is basically guided, so that in certain places the leadership through inserts is closed, which are provided as Serviceausnehmungen. Are appropriate work required for service or wear reasons, so can the chain guide at the corresponding recesses by removing the closure parts open be removed and the corresponding defective chain links or be replaced without it being necessary to use the entire Disassemble chain drive, resulting in considerable effort and downtime such a conveyor means.

at the previous chains, it was not possible, the individual axes to remove or - if at all - only with great Effort.

Is appropriate each chain link in the region of the hinge eyes and / or the at least a Funktionsvorpung the hinge pin elastically deformable, that by elastic deformation of the hinge eye and / or the Functional advantage of functional projection when turning the hinge pin Lockable on the hinge eye.

following The invention is based on embodiments with reference closer to the figure described. It shows:

1 a side view of a chain link of a hinge strap chain;

2 a plan view of a portion of a hinge band with several chain links in the manner of 1 ;

3 a plan view of the bent into a curved path portion of the hinge strap chain 2 ;

4 a bottom view of the bent in a curved path portion of the hinge strap chain 2 ;

5 a perspective view of the chain link 1 ;

6 a perspective view of a hinge pin;

7 an enlarged schematic side view of the chain link 1 and 5 ;

8th a relative to 7 rotated by 90 ° further schematic side view of the chain link 1 and 5 ;

9 - 11 further views of the chain link 1 and 5 ;

12 four different, enlarged views of the hinge pin 6 ;

13 one too 7 analogue representation with hinge pin;

14 one too 8th analogue representation with hinge pin;

15 and 16 the hinge pin on the chain link in the final mounting position;

17 - 20 Variants of the presentations after 5 to 8th ;

21 - 25 Variants of 12 to 16 with other hinged eyes;

26 - 28 further embodiments.

In the 2 to 4 illustrated hinge band 20 has a plurality of stringed chain links 7 on. 1 shows a single chain link 7 with a view in the running direction of the hinge strap chain. To recognize is the top side Transportgutauflage 5 , as well as at the bottom perpendicular to the main extension direction of the chain 2 aligned hinge arms 6 (Also called taps), which lead in respective undercut (not shown here) rails the respective chain link to a lifting of the chain link 7 to avoid from the leadership or to avoid sagging of the chain at the overhead of the loose recycled Trumms.

To 5 has the chain link 7 several hinged eyes 8th . 10 on, which are formed down to the Transportgutauflage. It has two chains in the chain direction offset rows of hinge eyes 8th and 10 , Which are each arranged offset from each other perpendicular to the direction of arrangement, so that when juxtaposing a plurality of chain links 7 the two rows of hinge eyes 8th . 10 each tooth-like mesh with a little game, with sufficient flexibility is given to the hinge tape chain in an arc shape in the manner of 2 and 3 to be able to bend.

The one row of hinge eyes must have at least one of the hinge eyes 8th and the other row at least two of the hinge eyes 10 between which the single hinge eye 10 intervenes.

To 5 There are three hinged eyes in one row 8a, b, c provided and in the other row two hinged eyes 10a, b which between the three hinge eyes 8th grab the other row.

The hinge eyes 8th and 10 Both rows are each with slot holes 9 provided and are each in the chain direction on the side edge of Transportgutauflagen 5 before, so that in the assembled state the slot recesses 9 the interlocking hinge eyes 8th . 10 adjacent chain links 7 at least in such a way aligned with each other that through them perpendicular to the chain direction a locking and connecting hinge pin 1 by type 6 is feasible.

At the hinge eyes 10a . 10b one row each are the hinge arms (taps) 6 arranged. The outer of the three hinge eyes 8th the further series of hinge eyes also have outside edge broadening, which for receiving a head 2 a hinge pin 1 serve, which will be explained in more detail below with reference to the further FIG.

To 6 has each hinge pin 1 on one side a head 2 on as well as locking pin 4 on which is different from the hinge pin 1 here at opposite points of the hinge pin from this radially outward and the next (offset by a few mm) the head 2 are arranged.

The head 2 of the hinge pin 1 has a width that the slot width of the slot recess 9 plus the depth of the edge well 12 Corresponds to, so that this twist-proof in the edge recess 12 of the respective hinge eye 8a or 8c is guided, in which he was plugged. Because the head 2 has a substantially rectangular shape (more precisely, it is here to a radial sides towards rather round and the other opposite side rather rectangular shaped, the head also slightly eccentric to the axis of the hinge pin 1 aligned), when turning the hinge pin 1 an elastic deformation of the respective outer hinge eye 8th respectively. Because the chain links 7 made of plastic, this is done in the elastic range, which allows the material. Also with metallic materials for the chain links 7 the head is to be dimensioned according to its external shape and dimensions so that the over-springing of the material takes place exclusively in the elastic region. The restoring forces are anyway greater for metallic materials than for materials such as plastic, etc .; so that the elastic suspension can be kept low.

To 13 passes through the hinge pin 1 the slot holes 9 , wherein it is introduced such that the locking pin 4 in the longitudinal direction of the slot recess 9 stand until the asymmetrical head (which is wider in one direction than in the other) in the edge depression 12 engages because it is asymmetrical in this particular case on the hinge pin 1 connected. With appropriate other structural design of the hinge pin head 2 also a centric position to the hinge pin 1 taking.

Parallel to the edge recess 12 is a groove on opposite edges of the hinge eye 13 . 14 formed, which for engagement of the locking pin 4 is designed.

Because the head of the hinge pin 1 with an actuating contour, here a slot 3 , Is provided in a simple manner by turning the hinge pin by 90 ° by means of a tool, such as a screwdriver, in the slot 3 engages, in its locking position within the chain link 7 to be turned around. The locking pins engage 4 into the corresponding grooves 13 and 14 and thus lock the hinge pin axially while the head 2 in the marginal recess 9 is clamped and prevents unintentional twisting.

7 shows an enlarged view of the side view of the chain link 7 , which the slot cutouts 9 and 11 are easy to remove.

8th shows a partial view from the viewing direction "x" see 5 in the inner of the outer hinge eye 8a respectively. 8c respectively. 8n , Here is the shooting situation for both the head 2 and the locking pins 4 good for the hinge pin.

The 9 shows a side view of the chain link 7 and corresponds essentially to the enlarged one 7 ,

The 10 shows in perspective the chain link 7 in the plan view of the Transportgutauflage 5 and corresponds to the previously described 5 , The 11 shows the transport chain link 7 from the bottom with a view of the hinge extractor 6 , 12 shows the specially designed hinge pin in its four folded by 90 ° views.

The 2 shows a number of interlocking chain links 7 in the plan view of the transport goods support plane. The individual chain links 7 grab each other here opposite each other.

The 3 shows a composite number of links 7 in which these are shown in the plan view of the Transportgutauflage according to the maximum radius resulting from the slot length in the hinge eye and the hinge hinge width and describe an arc.

The 4 also shows a composite number of chain links with maximum deflection radius of the bottom, so from the hinge arms taps.

The number of hinge eyes of a chain link is relative to the hinge eyes 8th to the hinge eyes 10 in the following relation: If the number of points of one row is "8": n, the number of the other row is "10": n - 1.

In the 15 the final mounting position of the hinge pin is shown, the hinge pin is moved in use with other chain links anyway figurative to the right and in the end radius of the elongated hole 9 comes to the plant.

The 16 shows the hinge pin 1 also in its final mounting position, where it can move along the long hole. Here it can be seen that the locking pins 4 into the grooves 13 and 14 engage and thus the axial position of the hinge pin 1 to back up. The head 2 The only task is to secure the hinge pin against rotation, what this by appropriate loose fit in the corresponding hinge eye 8th guaranteed.

Instead of securing over your head 2 can also use the locking pins 4 be dimensioned so that they take over this self-locking also by over-springing of the bearing eye. For this purpose, the locking pins are dimensioned correspondingly wide and largely rectangular.

The 17 equals to 5 but with the hinge eyes 8th instead of the slot recess 9 hinge holes 15 exhibit. The remaining versions of the chain link 16 again correspond to the chain link 7 ,

The 18 is identical to the 6 ,

The 19 corresponds to 7 ; here, however, is in the area of the edge depression 12 made a change in the way that the marginal recess 12 does not leak in a radius, but a Eckausformung 17 in which the head 2 of the hinge pin 1 appropriate place for the pre-assembled position. The hinge hole 15 has the disadvantage over the slot that the hinge pin can be rotated with slightly greater force in its locking position, since the slot allows mounting in a more elastic region of the hinge eye; However, the hinge bore has the advantage that the chain link has a greater rigidity.

The 20 essentially corresponds to the 8th but has such a contour that the head 2 as well as the locking pins 4 in the position of the hinge hole 15 can be mounted so that by rotation of the hinge pin 1 this is automatically fixed in the chain link. The 21 - 25 correspond to the 12 - 16 , which are only corrected to the hinge hole.

The 26 and 27 show the possibility of locking and securing against reverse rotation of the hinge pin 1 by appropriate shaping of the locking pin 18 facing the locking pins 4 are dimensioned so that they form fit directly within the grooves 13 and 14 enable. The Diago nalmaß a - on the locking pin 18 - measured is greater than the groove width b. The excess must be bridged by elastic springing of the hinge eye.

The locking pins 18 can also be resilient, so that for example when using a rigid material for the chain links, the position assurance elastic deformation or suspension of the locking pin 18 he follows.

In 28 is such a constructive possibility shown, which is exemplary of other structurally conceivable form of suspension. The locking pin according to 28 is z. B. with tongues 19 equipped when screwing in the hinge pin 1 spring back resiliently and spring back after reaching the twisting position in the original position and thus set against unintentional release the axle.

The suspension of the locking pins 18 can also be achieved by multi-part, in which also get separate spring elements for use.

The hinge chain links are designed so that corresponding bolts on the right or left of one of the hinge eyes 8th can be arranged. The entire chain is basically guided, so that at certain points, the guide is closed by inserts, which are provided as Serviceausnehmungen. If appropriate work is required for service or wear reasons, the chain guide can be opened at the corresponding recesses by removing the closure parts and the corresponding defective chain links can be removed or replaced, without it being necessary to disassemble the entire chain drive, which is a considerable Effort and downtime of such a conveyor means.

1

hinge pin

2

head

3

slot

4

locking pin

5

Transportgutauflage

6

hinge arm

7

link

8th, 8a, 8b, 8c

gudgeon

9

elongate recess

10 10a, 10b

gudgeon

12

peripheral wells

13

groove

14

groove

15

hinge bore

16

link

18

locking pin

19

tongue

20

Flat-top chain

Claims (25)

Hinge Tape Chain ( 20 ) a) with a plurality of chain links ( 7 ), which at least two rows of in the assembled state interlocking hinge eyes ( 8th . 10 ), which in the mounted state in each case are aligned with one another, b) wherein the interlocking hinge eyes of the chain links ( 7 ) are respectively penetrated by hinge pins, characterized in that c) the hinge pin ( 1 ) are formed such that they can be brought by rotation in a locking position in which the axial position of the hinge pin ( 1 ) in the hinge eyes ( 8th . 10 ) and whose rotational position is fixed and that they can be released by turning back from the locking position to disassemble the chain. Hinge chain according to claim 1, characterized in that the hinge pins ( 1 ) each have at least one functional advantage ( 2 . 4 ), which in a first rotational position in the axial Direction in a correspondingly shaped recess ( 12 . 13 . 14 ) at the hinge eyes ( 8a . 8c ) and in a second rotational position in the recess ( 12 . 13 . 14 ) is axially lockable. Hinge chain according to claim 2, characterized in that the at least one functional projection as a head at one axial end of the hinge pin ( 2 ) is formed, which is designed for engagement in a peripheral recess of the hinge eyes. Hinge chain according to one of the preceding claims, characterized in that each individual chain link ( 7 ) on the top side a Transportgutauflage ( 5 ) and on the underside perpendicular to the main extension direction of the chain aligned hinge arm ( 6 ), which lead in respective undercut rails the respective chain link to a lifting of the chain link ( 7 ) to avoid the leadership. Hinge chain according to one of the preceding claims, characterized in that the chain links are designed such that the hinge pins can be inserted and locked from both axial directions. Hinge chain according to one of the preceding claims, characterized in that the at least one functional projection ( 2 . 4 ) than radially from the hinge pin ( 1 ) projecting locking pin ( 4 . 18 ) which is designed to engage in a corresponding groove ( 13 . 14 ) of the hinge eyes ( 8th ) is designed. Hinge chain according to one of the preceding claims, characterized in that the hinge pin ( 1 ) as functional projections both the head ( 2 ) and at least one, preferably two of the locking pins ( 4 . 18 ) and that at the hinge eyes ( 8th ) both the edge depression ( 12 ) and at least one of the grooves ( 13 . 14 is trained. Hinge chain according to one of the preceding claims, characterized in that parallel to the edge depression ( 12 ) at opposite edges of the hinge eye ( 8th ) one of the grooves ( 13 . 14 ) for engagement of the locking pin ( 4 ) is trained. Hinge chain according to one of the preceding claims, characterized in that the head ( 2 ) of the hinge pin ( 1 ) is asymmetrically shaped. Hinge chain according to one of the preceding claims, characterized in that the head ( 2 ) of the hinge pin with an actuating contour, preferably a slot ( 3 ) is provided. Hinge chain according to one of the preceding claims, characterized in that each chain link in the region of the hinge eyes ( 8th . 10 ) and / or the at least one functional presumption ( 2 . 4 . 18 ) are elastically deformable such that the functional projection on the hinge eye can be locked by the elastic deformation of the hinge eye and / or the functional projection. Hinge chain according to one of the preceding claims, characterized in that the head ( 2 ) in a first rotational position in the axial direction of the hinge pin in the correspondingly shaped edge recess ( 12 ) of the hinge eyes ( 8a . 8c ) insertable and in the second rotational position in the edge recess by elastic deformation of the head ( 2 ) and / or the marginal recess ( 12 ) is lockable. Hinge chain according to one of the preceding claims, characterized in that the one row of the hinge eyes ( 8th . 10 ) at least one hinge eye ( 10 ) and that the other row at least two spaced hinge eyes ( 8th ), in which the single hinge eye ( 10 ) intervenes. Hinge chain according to one of the preceding claims, characterized in that on the hinge eyes ( 10a . 10b ) one row each of the hinge arms (taps) 6 are arranged. Hinge chain according to one of the preceding claims, characterized in that the head ( 2 ) is designed such that when turning the hinge pin ( 1 ) an elastic deformation of the respective outer hinge eye ( 8th ) he follows. Hinge chain according to one of the preceding claims, characterized in that the chain links ( 7 ) made of plastic or metal. Hinge chain according to one of the preceding claims, characterized in that the head ( 1 ) is dimensioned according to its outer shape and dimensions so that a spring-back of the material of the chain links ( 7 ) takes place exclusively in the elastic region. Hinge chain according to one of the preceding claims, characterized in that the hinge eyes ( 8th . 10 ) are formed slot-like. Hinge chain according to one of the preceding claims, characterized characterized in that one of the two rows of hinge eyes is a circular one Cross section has. Hinge chain according to one of the preceding claims, characterized in that the Verrieglungszapfen ( 4 ) the axial position of the hinge pin ( 1 ) and that the head ( 2 ) the hinge pin ( 1 ) against twisting secures. Hinge chain according to one of the preceding claims, characterized in that the locking pins ( 4 ) are dimensioned so that they take over even by over-suspension of the bearing eye, the rotation. Hinge chain according to one of the preceding claims, characterized in that the edge recess ( 12 ) a Eckausformung ( 17 ), in which the head ( 2 ) of the hinge pin ( 1 ) for the pre-assembled location corresponding place. Hinge chain according to one of the preceding claims, characterized in that the locking pins ( 18 ) are resilient. Hinge chain according to one of the preceding claims, characterized in that the locking pins ( 18 ) with tongues ( 19 ), which when turning the hinge pin ( 1 ) spring back and spring back after reaching the twisting position in the original position and thus set against unintentional release the axle. Hinge chain according to one of the preceding claims, characterized in that the suspension of the locking pin ( 18 ) takes place by means of separate spring elements.