Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
  • B65G21/02—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors consisting essentially of struts, ties, or like structural elements
  • B65G21/06—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors consisting essentially of struts, ties, or like structural elements constructed to facilitate rapid assembly or dismantling

Definitions

• Support element especially for endless conveyors
• the invention relates to a support element, in particular for use as a support surface for the conveying means of an endless conveyor, with a supporting wall which is firmly connected to supporting means perpendicular thereto.
• Such a support element is described in DE-OS 33 21 018. With him, the support wall, formed by a solid metal plate, is firmly connected to two cheeks made of solid metal, and the top of the support wall forms the support surface for a transport chain, on which the one pair of feet of a pallet is conveyed while sitting.
• the support surface of the conveying means of an endless conveyor is formed by an extruded profile part.
• the present invention is therefore intended to be a support element be further developed according to the preamble of claim 1 in such a way that additional devices or also other supporting elements can be easily attached to it at any point along its longitudinal extension without mechanical processing of the supporting element itself.
• the two parallel, spaced adjacent profile parts form an intermediate gap, through which a tie rod for clamping any additional device can be simply inserted at any point along the longitudinal extent of the support element.
• the two profile parts further delimit two channels running in the longitudinal direction of the support element, which can serve to accommodate cables, compressed air hoses or also to accommodate the return run of the conveying means of an endless conveyor.
• the profile parts used in the support element according to the invention can be produced simply by edging or rolling sheet metal, the mechanical strength of the support element being able to be controlled in a very simple manner via the thickness of the sheet. Since the two profile parts run parallel next to each other and are connected at intervals by the suspension elements, a very high mechanical load capacity of the entire suspension element is obtained both on bending and on torsion.
• the support element according to the invention can be produced on the basis of mechanically unprocessed, simple profile parts which are only cut to the required length. Only the suspension elements connecting the profile parts have to be mechanically processed, for example provided with bores and / or threads. However, these suspension elements can be used as Standard parts with small dimensions can be easily produced on numerically controlled machines. They can also be used for support elements of different lengths.
• Conveyor lines constructed with support elements according to the invention can be easily modified or completely broken off and rebuilt elsewhere with a different geometry. No mechanical work is required on site.
• suspension means on the one hand non-rotatable, on the other hand engage with particularly good frictional engagement on the profile parts.
• a particularly firm connection of the supporting parts to the rectangular C-profile parts is achieved.
• a profile part is to be understood as a rectangular profile part, in which one of the side walls has a gap running in the longitudinal direction of the profile, which is delimited by two free short residual legs.
• Such a rectangular C-profile part is also briefly referred to below as a C-profile part.
• the profile part on the one hand can be very firmly connected to the adjacent plate-shaped suspension means via the clamping piece, but at the same time there is no risk of bending the C-profile part, which for cost reasons simply by folding or rolling can be obtained from sheet steel.
• the plate-shaped suspension means can be used on cover. It is also possible to produce butt joint connection suspension means by halving such corner connector suspension means, which are attached to longitudinal butt joints of profile parts.
• transverse support element arms running in a transverse direction to a supporting element, such as are necessary, for example, for the horizontal bracing of the support frames of endless conveyors.
• transverse support element arms in turn have the same geometry as the main support element arm, so that additional devices can also be easily attached at any position there.
• Figure 1 is a side view of one end portion of an endless conveyor for pallets
• Figure 2 is an enlarged side view of a foot connection of the support frame of the pallet conveyor of Figure 1;
• FIG. 4 a plan view of a cross strut connection point of the pallet conveyor according to FIG. 1, the section of the connection point assigned to the cross strut being shown cut vertically;
• Figure 5 is a plan view of the cross strut connection shown in Figure 4, wherein the longitudinally extending support member of the frame of the pallet conveyor is shown in section;
• Figure 6 is a plan view of a profile part-butt joint of the support frame of the pallet conveyor according to Figure 1;
• FIG. 7 a top view of a sensor attachment point, which is attached to a longitudinal or transverse support element of the frame of the pallet conveyor according to FIG. 1;
• Figure S a plan view of its reinforcement connection point, to which an additional stiffening ensuring additional profile part is attached to a support element;
• Figures 9 to 11 transverse sections through modified support elements that can be used as longitudinal or transverse bars of the frame of an endless conveyor.
• FIG. 1 shows the left end section of a pallet conveyor, the frame of which is designated overall by 10.
• the frame 10 has a longitudinal spar lying in the drawing plane of FIG. 1, which is formed by a lower rectangular C-profile part 12 and an upper, rectangular cross-section C-profile part 14.
• the C-profile parts 12 and 14 run parallel at a distance from one another in the same vertical plane. They are fixed in this orientation on the one hand by planar corner connecting devices 16 (which establish a connection in the plane of the longitudinal spar), which serve in the same way for attaching feet of the frame 10.
• These feet each consist of rectangular C-profile parts 18, 20, which are identical to the C-profile parts 12, 14.
• the longitudinal spar lying in the drawing plane of FIG. 1, which consists of the two profile parts 12 and 14, is of the same construction with another longitudinal spar, which is spaced behind the drawing plane of FIG. 1, by rectangular C-profile parts running in the transverse direction 26, 28, which in turn are connected to the profile parts 12, 14 of the front and rear longitudinal spars by means of special transversal (connecting elements in the direction perpendicular to the plane of the longitudinal spar).
• the front feet of the frame 10 formed by the profile parts 26, 28 are connected to flush rear feet.
• a deflection wheel 32 for a conveyor chain 34 is mounted in the bearing plates 24 and has stable, vertical forces rigidly transmitting chain elements 36 to a support. This can be a conveyor chain as described in more detail in DE-QS 33 21 018.
• the lower C-profile part 12 has a lower horizontal profile wall 38 and an upper horizontal profile wall 40. These two professional walls forming the legs of the C are connected by a vertical profile wall 42 which forms the base of the C. Accordingly, the upper profile part 14 has a lower horizontal profile wall 44 and an upper horizontal profile wall 46 and a vertical profile wall 48 connecting them.
• the axis of the deflection wheel 32 is arranged so that the return run of the conveyor chain 34 is supported by the lower horizontal profile wall 38 of the profile part 12. This part of the conveyor chain is thus protected against contamination and cannot be touched unintentionally. In addition, there is no sag in the return run.
• the working strand of the conveyor chain 34 is through the upper one
• Profile wall 46 of the profile part 14 is supported and embossed the two feet 50 of a pallet 52.
• the other feet of the pallet 52 run on a conveyor chain which is supported in a similar manner to the chain by the longitudinal spar of the frame 10 lying behind the drawing plane of FIG 34.
• a product 54 to be conveyed is shown on the pallet 52.
• the channel which is delimited by the upper profile part 14 and runs in the longitudinal direction of the pallet conveyor, can be used for laying electrical, hydraulic or pneumatic lines, which extend along the conveying path
• Such drives can be used, for example, to retract and extend movable stops, which stop the pallets in front of a work station and then release them again when the work station is ready for machining a new workpiece.
• planar corner connection device 16 The structure of a planar corner connection device 16 will now be described in more detail with reference to FIGS. 2 and 3. The basic features of this structure also apply to the other connecting devices.
• FIG. 2 shows a plan view of the side of the frame which is pointing rearward in FIG. 1.
• the corner connecting device 16 comprises an external connecting plate 56 and an internal connecting plate 58, each of which has the shape of a rectangle.
• the narrow side of this rectangle corresponds to the distance between the top of the profile wall 46 and the bottom of the profile wall 38, that is, the clear width of the longitudinal frame member.
• the long side of the connecting plates 56, 58 is exactly twice as large.
• six holes 60 are drilled, two of which are each with the center line of the
• Profiltailes 12 the center line of the intermediate space between the profile parts 12, 14 62 and the center line of the upper profile part 14 are aligned.
• the hole pattern of the lower half of the connecting plates 56, 58 is obtained from the hole pattern of the upper half by rotating 90 degrees and shifting.
• the rectangular C profile parts 12, 14 have free short legs 64, 66 which spring back inwards from the free ends of the horizontal profile walls 38, 40 and 46, 48, respectively.
• the legs 64, 66 thus delimit a lateral width that extends in the longitudinal direction Slot 68 of the profile parts 12, 14.
• a clamping body 70 is arranged behind each of the bores of the connecting plates 56, 58 aligned with the center lines of the profile parts 12, 14 and engages with a positioning section 72 in the sliding play between the legs 64, 68.
• the height of the positioning section 72 is somewhat smaller than the wall thickness of the profile parts 12, 14.
• the latter are in practice e.g. Profiles made of galvanized sheet steel of 2 mm thickness by edges or rollers. With this wall thickness, the height of the positioning section 72 can be, for example, 0.2 mm smaller than the thickness of the legs 64, 66.
• the clamping bodies 70 have a threaded bore, in each of which a clamping bolt 74 runs, which passes through the bores 60 of the inner connecting plate 58 and whose head is supported on the inside of this plate.
• Draw-through bolts 76 extend through the bores 60 of the connecting plates 56, 58 which are aligned with the center line of the intermediate space 62, the heads of which are supported on the outside of the outer connecting plate 56. Nuts 78 are screwed onto the tension bolts 76 and engage the inside of the inner connecting plate 58.
• the profile parts 12, 14 are on the one hand directly attached to the inner connecting plate 58 (via the clamping bodies 70 and the clamping bolts 72), on the other hand the two connecting plates 56, 58 are firmly clamped to one another via the pulling bolts 76. So that the profile parts 12, 14 are also well and reliably secured against tilting. Part of the forces exerted on the upper profile wall 46 of the profile part 14 by the pallets 52 is thus also dissipated via the outer connecting plate 56.
• the vertical rectangular C-profile parts 26, 28 which form a foot are fastened to the lower half of the connecting plates 56, 58 in an analogous manner to the profile parts 12, 14 which run in the horizontal direction and form the longitudinal spar.
• corner connecting device 16 can easily be attached to any location along the longitudinal extent of the profile parts 12, 14 without these parts having to be mechanically processed at the attachment point for the feet of the frame.
• the rectangular C-profile parts 26, 28 forming a cross strut are made using angles 80, 82 on the profile parts
• angles 80, 82 have the same structure as the upper half of the connecting plates 56, 58 which have already been explained, and are only folded over by 90 degrees at their center line.
• angles 80, 82 are each fastened to the profile parts 12, 14 using two clamping bodies 70 and two clamping bolts 74 such that their legs running perpendicular to the plane of the drawing in FIG. 4 hold the profile parts 26, 28 non-positively between them.
• Profile parts 26, 23 are also clamping bodies 70 used, which are clamped via clamping bolts 74 with the leg of the angle 80 running perpendicular to the plane of the drawing.
• a draw bolt 76 with an associated nut 78 connects the legs of the angles 80, 82 which run perpendicular to the plane of FIG. 4.
• transverse corner connecting device 30 shown in FIGS. 4 and 5 can also be attached at any point along the longitudinal extent of the longitudinal frame member formed by the profiled sections 12, 14.
• FIG. 6 shows details of the joint connection device 22.
• This includes connection plates 84, 86, which correspond to the upper half of the connection plates 56, 58 and are also braced with the profile parts 12.
• the connecting plates 84, 86 do not protrude beyond the profile parts 12, 14 and only cover the joints 88, 90 between successive sections 12i and 12i + 1 or 14i and 14i + 1 of the profile parts 12, 14.
• the joints 88, 90 are preferably at the center plane of the connecting plates 84, 86, so that the ends of the section sections are mechanically equivalent between the connecting plates 84, 86 clamped.
• FIG. 7 shows a mounting bracket 92 for a sensor 94, which is used to report the passing of a pallet 52 to a central controller.
• the fastening bracket 92 is braced using two spaced-apart tension bolts 76 with an identical fastening bracket 96, which is arranged on the rear side of the profile rails 12, 14 and only serves as a support plate.
• the mounting bracket 92 can be very easily adjusted in the longitudinal direction of the conveyor without mechanical work having to be carried out on the profile parts 12, 14. It goes without saying that sensors, drives or other additional devices can also be attached analogously to a foot formed by profile parts 18, 20 or to a transverse reinforcement of the frame formed by profile parts 26, 28.
• frames of endless conveyors have successive feet at regular intervals, so that the sections lying between successive feet the frame longitudinal bars are equally resilient.
• the load capacity of the longitudinal frame members can be increased locally using a reinforcement connecting device, as is shown in FIG. 8.
• connection device comprises two connection plates 98, 100 which are drilled similarly to the connection plates 84, 86, but have two additional rows of holes.
• the right-hand end of the profile part 102 is connected in an analogous manner to the profile parts 12, 14, as shown in FIG. 8 for the left-hand end.
• Figure 9 shows a transverse cross section through a Ratynenholm, which only needs to be designed for lower loads.
• the connection of the profile parts 12, 14 is now carried out exclusively using clamping bodies 70 and clamping bolts 74 and a single connecting plate 104.
• an upper running surface for a conveyor chain 34 and two longitudinally extending cavities in the profile parts 12, 14, which are either for Recording the return run of the conveyor chain 34 or for receiving electrical, hydraulic or pneumatic lines can serve. Since in the embodiment of FIG 9 the space 62, which is between the two profile parts 12, 14, is completely free, you can run the return run of the conveyor chain 34 on the top of the upper profile wall 40 of the profile part 12, so that the width of the conveyor chain 34 can be just as large like the width of the professional walls 40, 46.
• the frame longitudinal spar shown in the transverse section in FIG. 10 corresponds in terms of its mechanical resilience to the longitudinal spar shown in FIGS. 2 and 3.
• the only difference is that the profile part 14 is now open to the outside, while the lower profile part 12 is still open to the inside. This can make it easier to lay cables and wires.
• the longitudinal spar shown in FIG. 11 has a mechanical load capacity which lies between that of the longitudinal spar according to FIGS. 2 and 3 or 10 and that of the longitudinal spar according to FIG.
• the two connecting plates 84, 86 are clamped together by means of tension bolts 76, but the lower profile part 12 is only clamped between the connecting plates 84, 86 and is not separately clamped to the connecting plate 86 by clamping bodies and clamping bolts. This makes it possible to completely close the lower profile part 14, so that no contaminants can penetrate into the interior of this profile. In this way, the return run of the conveyor chain 34 can be particularly well protected against contamination.
• the clamping fixation of the lower profile part 12 is sufficient for many applications where this profile part does not have to make a major contribution to the overall stability of the longitudinal frame member. Since the interior of the profile part 12 is also available in full width in this exemplary embodiment, the width of the conveyor chain 34 only needs to be smaller by twice the wall thickness of the profile part 12 than that which supports the working strand of the conveyor chain 34 upper side of the upper profile wall 40
• the intermediate space 62 between the profile parts was drawn larger in the vertical direction than the diameter of the tension bolts 76.
• the intermediate space 62 is preferably selected to be only slightly larger than the diameter of the tension bolts 68. This facilitates both the assembly of the spars and the attachment of feet, cross struts, mounting brackets and the like lie between the connecting plates, as shown in FIG. 11 additionally at 106.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chain Conveyers (AREA)
• Escalators And Moving Walkways (AREA)

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ID=6356894

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Citations (4)

Family Cites Families (9)

• 1988
  • 1988-06-21 DE DE19883820884 patent/DE3820884A1/de active Granted
• 1989
  • 1989-05-24 WO PCT/EP1989/000573 patent/WO1989012594A1/de unknown

Patent Citations (4)

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