FI109015B - Slat chain conveyor - Google Patents

Description

109015

Lame11iketj ukulj etin

The invention relates to a lamella chain conveyor according to the preamble of claim 1.

The lamella chain conveyors which are the subject of the invention are commonly used for the transport of goods, usually in horizontal and about 2 to 200 meters long distances. In particular, lamella chain conveyors are used to transport paper, board or pulp rolls in a paper mill.

In particular, the invention relates to a lamella chain conveyor in which a returning portion of the lamella chain passes below a portion of the advancing lamella chain and wherein the lamella chain is allowed to pivot upside down at the pivot point. The drive apparatus for rotating the lamella chain is thus preferably located at the forward end of the lamella chain, that is, so that the actuator pulls itself towards the surface of the lamella chain on which the objects to be transported lie. Such an arrangement can reduce the load on the system. However, in most applications it is also possible to rotate the lamella chain in the opposite direction.

Known chain conveyors for some applications are described, for example, in US 3,877,567 .V. and GB 1,235,550.

According to the prior art, the lamella chain generally comprises two parallel spaced v ?, chains on which the actual lamellae are supported.

::: The upper surfaces of the lamellae of the upper portion of the lamella chain form a progressive transport plane for supporting and transporting the transportable bodies, preferably towards the folding access point. The purpose of the folding head is to rotate the direction of travel of the \\ / · lamella chain and the purpose of the drive head is to rotate the lamella chain. The drive end also has a clamping mechanism for the lamella chain. Most commonly, the drive end comprises drive sprockets for rotating, guiding, and adjusting the tension 35, first guide means for guiding the chains between the drive wheels and lower parts of the chains moving substantially parallel to the transport plane;

In the known clamping fittings, the drive sprockets have one for each chain. The drive wheels are supported on a shaft which in turn is rotatably mounted on two supporting 1-piece blocks. The slides, in turn, are supported by 10 slides with an arrangement that allows the slides to be transported along the slides in the direction of tightening or loosening the chains and locking the slides to the desired location for a desired time. The locking is effected by bolts or the like, which are tightened through the slides to the slides. The other end of the shaft extends to the drive mechanism, which also needs to be resized when adjusting the chain tension. The drive mechanism may include, for example, an electric motor and a gear.

The disadvantage of prior art conveyors is that tightening the lamella chain is difficult and unnecessary: · *: consuming.

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It is an object of the invention to overcome the drawbacks described above and to provide a completely new type of lamella chain conveyor.

The invention is based on the fact that the movable shaft used to tighten the lamella chain is suspended on the conveyor by a movement mechanism which allows the shaft to be moved only in parallel. In a preferred embodiment; this is accomplished by tightening the lamella chain 30 by moving the conveyor instead of the drive shaft. . ·. an axis located at the folding end. The movable mechanism is also preferably provided with a simple locking mechanism.

More specifically, the lamella chain conveyor of the invention is characterized in what is set forth in the characterizing part of claim 1.

The invention provides considerable advantages.

By means of the invention, tensioning of the lamellar chain can be done more easily and faster than in the prior art lamellar chain.

In the prior art, when tightening a lamella chain, it has been necessary to open and tighten a number of bolts, which does not have to be done in a preferred embodiment of the invention.

In the prior art, the alignment of the shaft with the chain has also been difficult. Properly applying the invention, the axle support members automatically perform the correct orientation of the shaft as it is moved.

When the tensioning is known in the art, at the drive end, the drive shaft is subjected to differential and thus axial tilting forces exerted by the drive mass V on the sliders, which impedes the axle-20in orientation. When tensioning the lamella chain by moving the folding head axis, fitting is achieved; ·; additional benefit.

/ ·: If the lamella conveyor is mounted at the level of the floor surface, a further advantage of the preferred embodiment of the invention is that the actuator end of the lamella conveyor does not require a deep mounting of the lamella; for tightening the chain. In the practice of the invention! · A much smaller mounting on the drive end is sufficient, as * · 'the drive does not require any margin.

In an embodiment of the invention, by changing the height of the shaft by means of gears mounted on both ends of the shaft, which are responsive to the rack, the locking of the shaft at an incorrect angle is achieved. In this case, one-sided loading of the chains due to the inclination of the shaft 4 109015 can be avoided.

The lamella chain tends to jerk as the load being carried changes. The effect of the slack chain jerking on the drive mechanism depends on the distance of the shaft to the folding point. When the tensioning of the lamella-5 chain is performed by displacing the folding head axis, it is also an additional advantage that the drive machine shaft distance to the folding point can be kept optimal regardless of the tightening situation.

The invention will now be described with reference to Examples 10 and with reference to the accompanying drawings.

Fig. 1 is a side elevational view of a folding end of a flat chain of the invention.

Fig. 2 is an enlarged view of the locking mechanism of the conveyor shaft of Fig. 1.

Figure 3 shows the folding end of Figure 1 as viewed in the conveying direction of the lamella chain.

Figure 4 is a top view of the axis of the folding head of Figure 3.

Fig. 1 shows how the Folding Head controls the passage of the lamellae jun 1 1 '^ 20. to guide the chain 1 from the guide discs 2 to the conveyor track, ·, ·, 25 to support the guide discs 2 through the guide discs 2, and the suspension and locking devices 6-14 .

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Fig. 1 also shows, in part, the conductor disc 2 'and the lamella chain 1' moved to the lower end of the clamping allowance.

Suspension devices 6-9 comprise shaft-bearing read-only members 6 located near both ends of shaft 5, slide rails 5 109015 attached to the device frame 7, gear teeth 8 attached to the gear racks 9 corresponding to both gears 8.

The slide guides 7 comprise two opposing parallel and usually vertically extending support surfaces adjacent to both ends of the shaft 5 for guiding the slide pieces along a guiding path formed between these support surfaces. The slides 7 may consist, for example, of a total of four metal beams 10 mounted vertically on the device frame, the narrow sides of which are aligned with each other and form support surfaces. The slides 6, in turn, comprise sliding surfaces of the support surfaces of the guide rails 7 which are shaped so that the slides 7 can be conveyed along the slides 7 only in the direction of tightening or loosening the chain 1. The counter surfaces may be, for example, elongated flat-bottom recesses according to Figure 4. The slides 7 further comprise sliding fittings or bearing slots on which the shaft 5 is rotatably suspended.

V 20 The toothed rails 9 are fixed to the device body in the proximity of the slides 7: * *: and substantially parallel to the supporting surfaces.

The gears 8 corresponding to the gearing of the rack 9 are fixedly connected to the shaft 5 by a fixed connection ii with respect to each other, such that the gears 8, the shaft 5 and the rack 9 '. In most cases this means the horizontal installation of the '*' axis 5 at a right angle to the lamella chain · jun 1 in the transport direction. This arrangement allows the shaft 5 to be rotated by rotating both gears 8, * · * ', e.g. parallel and the same distance. The mounting angle 35 of the shaft 5 is thus automatically determined when the chain 1 is tightened by the teeth of the toothed rails 9 and the gears 8.

6 109015

Figures 1 and 3 also show one possible arrangement for adjusting the longitudinal position of the toothed rails 9 and thereby adjusting the angle of the shaft 5. In the solution shown in the figures, this is accomplished by means of adjusting bolts 13 which engage the upper and lower surfaces of the toothed rods 9. The height of the rack 9 is set by the adjusting bolts 13, after which the rack 9 is firmly secured to the device body by the other bolts 14 piercing the rack.

10 The structure of the locking devices 8, 10, 11, 12 is best shown in Figure 2. The locking devices comprise a locking cam 10 arranged to pivot about the hinge point 11. The locking knob 10 has a suitable point between the teeth of the gear 8 which can be pivoted to lock the gear 8 in place.

In this case, the shaft 5 is also locked in motion. The locking cam 10 is hinged to the number 1 in the hinge point 11.

The locking devices also comprise a locking bolt 12 by means of which the locking cam 10 can be secured in the locking position.

The locking bolt 12 may be located, for example, between the hinge point 11 and the tip 20, 20. The other end of the locking cam 10 is shaped as an operating handle extending from the hinge point 11 in the opposite direction and substantially farther away from the tip, which impairs the use of the locking devices.

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Shaft 5 is locked non-rotatable during operation of the slat chain conveyor: ·, 25. In the embodiment of the figures, the guide discs 2 guiding the passage of the lamella chain 1 are fixedly mounted on the shaft 5. Thus, the guide discs 2 do not rotate with the chain 1 during operation of the conveyor, but the chain 1 slides along the surface of the guide discs 2. The conductor discs 2 themselves may be e.g.

3 and 4, and are preferably made of a material resistant to abrasion of the chain 1.

Alternatively, the guide discs 2 can be mounted on the shaft 5 so that they can rotate freely with the chain 1 during operation of the conveyor. In this case, strollers or similar discs can also be used as guide discs 2 which do not allow the chain 1 to slide along the surface of the disc.

Solutions other than those described above may also be contemplated within the scope of the invention. For example, the locking devices could be replaced, for example, by a bolt passing through the gear teeth 8 or 5 thereof. Also, the structure of the slide guides 7 and the slides 6 can be made in many different ways.

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Claims (9)

109015 δ A slat chain conveyor comprising: - a slat chain (1), 5. at least one axis (5) and conductive disks (2) substantially coaxially disposed therewith to support the slat chain (1), - actuators for rotating the slat chain (1), jun (1) for defining the track, and f - supporting members (6-14) for supporting at least one axis, the supporting members (6-14) comprising - substantially parallel guiding tracks for the shaft (5) 15 near each end of the shaft (5). for controlling this when moving the lamella chain (1) in a tightening or loosening direction, and - locking means (8, 10, 11, 12) for locking and releasing the shaft (5); ·· characterized in that the support means (6-14) the displacement means (8, 9) at each end of the shaft for moving the shaft (5) substantially along the same distance along each guide path v ·, and the displacement means (8, 9) comprising two convergent gears (8) disposed at both ends of the axle (5) and connected to the shaft (5), and toothed rails (9) mounted on the device body, on which the gears (8) are arranged to be rotated. as we move forward. 9 109015 A lamella chain conveyor according to Claim 1, characterized in that the support members (6-14) comprise 1 reading pieces (6) on which the shaft (5) is pivotally mounted and comprising counter surfaces for guiding the sliding pieces (6) along the guide tracks. 3. A lamella chain conveyor according to claim 2, characterized in that, for forming the guide track, the support members (6-14) comprise substantially parallel slides (7) arranged in pairs close to both ends of the shaft (5) with their edges facing towards the pair! forming support surfaces following the respective surfaces of the slides (6). I 15 A slat-chain conveyor according to claim 3, characterized in that the slide guides (7) are at least approximately vertical. A lamella chain jukul conveyor according to claim 1, characterized in that the gears (8) are fixed,. to the shaft (5) by means of a non-rotatable joint, whereby the gears (8) and the shaft (5) 25 are rotated in parallel along the gear rails (9) when the shaft (5) is rotated. 10 109015 A lamella chain conveyor according to claim 5, characterized in that the locking members (8, 10, 11, 12) comprise a locking cam (10) having a point suitable for toothed gear (8) and pivotable about a hinge point (11), that the point can be pressed against the tooth in a manner that prevents the gear (8) from moving. 8. A lamella chain conveyor according to claim 1, characterized in that the guide discs (2) are supported on a movable shaft (5) by a bearing connection or by a fixed connection. A lamella chain conveyor according to any one of claims 1 to 8, characterized in that the movable shaft (5) and its supporting members (6-14) are located at the folding end of the lamella conveyor. * »» 11 109015