EP2616377A1 - Rail for suspended conveyors and suspended cranes - Google Patents

Abstract

The invention relates to a rail (2) for suspended conveyors and suspended cranes, having a profile head (22) for suspending the rail (2) and a profile body (23) connected thereto, wherein the profile head (22) is a substantially C-shaped profile head and is open at the top as seen in cross section, the opening thereof forming a gap (24) that runs along a longitudinal center plane (L), which is bounded on both sides by first web segments (25a, 25b) that extend outward from the longitudinal center plane (L), wherein two second web segments (26a, 26b) opposite each other and running downward and outward as seen in cross section are connected to the first web segments (25a, 25b), and wherein the rail (2) is made of two profiles (20a, 20b) disposed symmetrically about the vertical longitudinal center plane (L) as seen in cross section. In order to produce a rail for suspended conveyors and suspended cranes, the geometry of which at least supports an overload protection in the region of the profile head, and allows simple attachment by means of suspension supports, according to the invention the first web segments (25a, 25b) runs diagonally outward and upward and the angle (21) of the first web segments (25a, 25b) is 15 to 35 degrees, preferably 20 to 30 degrees, relative to the longitudinal center plane (L).

Description

 Rail for monorails and overhead cranes

The invention relates to a rail for monorails and overhead cranes, with a profile head for suspending the rail and an associated profile body, wherein the profile head seen in cross section is a substantially C-shaped upwardly open profile head, the opening of which forms a along a longitudinal center plane extending gap which is bounded on both sides by first web sections which extend outward as viewed from the longitudinal median plane, and to the first web sections in cross-section, two opposite downwardly and outwardly adjoining second web sections adjoin

Cross-section seen from two symmetrically arranged to the vertical longitudinal center plane profiles is composed

Such rails typically include a rail head for providing a suspension for attachment to ceilings, walls, etc., and one

Rail body to provide the functional aspects, such as

Carriage tracks, supporting sections, etc.

Corresponding self-supporting tubular rails for monorails,

Suspension cranes u. Like. Are known for example from DE 1 249 301. The running track described therein is composed in cross section, for example, of two symmetrically arranged to the vertical longitudinal center plane thin-walled profiles, the roller pairs of a chassis with upper walls and obliquely down to the longitudinal center plane extending side walls and two sides of a lower slot lying, to this downwardly inclined lanes enclose and above are provided on the longitudinal median plane with a respective upwardly and then outwardly from the longitudinal center plane facing web, which rests against the web of the second profiled bar in the upwardly facing part and is connected thereto. The upper profile walls fall from the longitudinal center plane to the outside and the distance between the oblique side walls is only so large that the running track provides space only a chassis whose width is determined only by a plate-shaped support body and this tightly arranged roles. The running rail is fastened via the upwardly directed webs by means of a suspension, for example, to the hall ceiling, the suspension clasping the upwardly facing webs in the outwardly facing part. From the brochure H B-system (August 2009) of the company ABUS Kransysteme GmbH on page 1 1 also corresponding rails are known, consisting of two welded together symmetrically to the vertical longitudinal center plane

Half shells consist, with their first upwardly and then outwardly facing web finally inward approximately horizontally in the direction of the vertical

Recesses the longitudinal median plane. In this case, a gap remains between the opposite ends of the webs, so that a substantially C-shaped profile head is formed, which is open at the top. In this opening engages a ball joint suspension such that it rests with a lower plate from the inside of the webs and lying by means of bolts with an outside of the webs

Ball socket plate is screwed through the opening. Further, the profiles of the running rail in the lower region at the lower slot for the chassis are each twice approximately at right angles below the slot first down and then folded outwards, so that a running on the outside longitudinal groove is formed in the rail section connector (sleeves) can be arranged and cause a stiffening.

A device for suspending rails for a suspension crane with a longitudinally extending rail and a suspension is known from the German patent application DE 101 15 565 A1. The rail consists of two mirror-symmetrical sheet metal profiles, which are welded together below a profile head. The rail comprises a C-shaped and upwardly open profile head with two webs and three web sections. The webs extend in a first web portion horizontally outward and in an adjoining second web portion almost vertically obliquely outwards and downwards. Angled third land sections adjoin each other, running and meeting at an angle inwardly and downwardly. From the German utility model DE 73 46 004 U is a

Monorail conveyor with a rail known along the longitudinal direction carriages are movable. The rail consists of a cross-sectionally c-shaped and upwardly open profile head, which is followed by a hook-shaped lower part, which forms the running rail. To hang the rail, a suspension element is inserted in the longitudinal direction in the profile head. Therefor The profile head has two webs, each with four web sections, which enclose an upwardly open receiving space for the suspension and form a gap extending in the longitudinal direction of the rail. Both webs extend starting from the gap in each case in a first web portion obliquely outwards and upwards and each pass into a second web portion, which is angled and extends horizontally outwards. The second web section is followed in each case by a third web section which is angled at 90 degrees and runs vertically downwards. A horizontal fourth land portion connects the two lands at lower ends of the third land portions.

In the German patent DE 914 895 B is a rail for a

A tracked cat or a smooth-running crane, which has the shape of an inverted letter "T" in cross-section, is also suspended on a suspension via a profile head formed on its upper end The profile head has two webs, each with three web sections. The two webs each extend obliquely outwards and upwards in a first web section from the gap and then fall vertically downward in an angled second web section Ends of the third land portions, a second gap is formed within the receiving space.

Proceeding from this, the object of the present invention is to provide a rail for overhead monorail systems and suspension cranes which, by virtue of their geometry in the region of the profile head, at least supports a safeguard against overload and allows simple fastening by means of suspensions. In addition, the rail should be stiff and allow good connection options for rail sections.

This object is achieved by the reproduced in claim 1 rail.

Advantageous embodiments of the invention are specified in claims 2 to 8.

According to the invention is in a rail for monorail systems and overhead cranes, with a profile head for suspending the rail and an associated

Profile body, wherein the profile head seen in cross section is a substantially c is shaped upwardly open profile head whose opening forms a along a longitudinal center plane extending gap on both sides of the first

Ridge portions is limited, which extend as seen from the longitudinal center plane outwards, seen in the cross section of the first web portions, two opposite downwardly and outwardly extending second web sections connect, the rail is seen in cross-section composed of two symmetrically arranged to the vertical longitudinal center plane profiles , a backup against overload by the geometry in the region of the profile head supported at least thereby and allows easy attachment by means of suspensions characterized in that the first web portions obliquely outwards and upwards and the angle of the first web portions 15 to 35 degrees, preferably 20 to 30 degrees , relative to the longitudinal center plane. Since the first web portions do not recede approximately horizontally in the direction of the vertical longitudinal center plane as in the prior art (HBUS system of ABUS, but obliquely outwards and upwards) and the angle of the first web portions 15 to 35 degrees relative to the longitudinal center plane , more preferably 20 to 30 degrees and most preferably 25 degrees, ie are arranged substantially V-shaped, they prevent the rail profile bends even in extreme overload. Thus, overloading even increases the clamping effect on a suspension arranged in the gap, since the first web sections are "pulled" toward one another in the event of overload.

This is of tremendous momentum, because even in the overload case no failure of

Connection between the rail or its head profile and the suspension or its connecting element may occur. The special geometry of the profile head of the rail according to the invention ensures that the rail is not the weakest link in the chain.

When closing horizontally inwards towards the vertical

Longitudinal plane zurückkragende third land sections to the second

Connecting web sections, ie the profile head is wider at the base and narrows in the direction away from the profile body, a suspension for the rail can be used, which can "swing in" through the gap in the hollow profile head, since thus the diagonal extent ( seen in cross section) is large enough to accommodate a Einschwenkteil a suspension, the is then pivoted approximately horizontally and engages positively in the formed by the first web portions beads of the profile head. Thus, with appropriate matched to each other of dimensioning of the profile head and the suspension or its Einschwenkteils the profile head in a simple manner

Transverse direction held by positive locking.

As already stated in the introduction, the profile head of the rail is used for attachment to ceilings, walls, etc. via a suspension and the profile body of the rail to provide the functional aspects, such as carriage carriageways, support sections, etc.

For this purpose, it is advantageous if the profile body with upper substantially horizontally extending profile walls and slightly obliquely down to the longitudinal center plane extending profile side walls and two on both sides of a lower slot lying, this downward inclined lower profile walls forms a cavity for trolleys, in which case is additionally preferred that the lower one

Profile wall at the slot substantially down and then obliquely outwards and finally obliquely downward is continued. This allows another

Stiffening of the rail in the area of the profile body and additionally one

Leading out one end of the weld usually for the

 Butt joint of rail sections used welded tubes or sleeves.

These sleeves are usually welded in outward on the rail extending longitudinal grooves along its two sides. However, in the case of the rails of the prior art, the weld then lies in the region of the highest stress, namely at the edge of the profile. Due to the possibility of the lead out of the weld, this can end outside this range. Thus, the outflow notch of the weld is arranged by the retraction of the weld outside the critical region of the weld, whereby a voltage increase by geometry jump and a local separation of the notch is achieved, so that ultimately the holding means (sleeves) can be charged higher. This also allows a total of a higher load on the connection of the rail sections. Preferably, the angle of the obliquely downwardly continued lower Profile wall 90 to 130 degrees relative to the horizontal, more preferably 100 to 120 degrees, most preferably 1 10 degrees. In this angular range, the optimum weld seam course is coupled with the higher stiffening particularly effectively.

To connect the profile head with the profile body is provided in a preferred embodiment that fourth approximately along the longitudinal center plane extending web portions which adjoin the third web portions connect the profile head with the profile body on the upper profile walls. In this case, the web portions are dimensioned so that connecting sleeves approximately half in the correspondingly formed on the outside of the rail longitudinal groove

can be included.

It is also advisable to connect to the halves of the rail in this area with each other, including the fourth web portions of the profile head in the upward-facing area abut each other and are connected to each other.

The rails according to the invention can be used in many ways. However, the use as a running rail and / or mounting rail for single or double-girder suspension cranes is particularly preferred.

Further details, features and advantages of the invention will become apparent from the following description of an embodiment with reference to the drawing, in which

Fig. 1 is a perspective and schematic view of a single-girder suspension crane according to the prior art to illustrate the possible uses of corresponding rails; 2 is a perspective view of a rail according to the invention;

Fig. 3 shows a cross section through the rail of Figure 2 and

Fig. 4 shows a cross section through the rail of Figure 2 in the region of

Suspension of the profile head as well Fig. 5 shows the cross section of Figure 4 during insertion of the suspension.

To illustrate the various possible uses of connected rail sections for the formation of rails, a single-girder suspension crane is shown in FIG.

By means of suspension devices 1, substantially horizontally extending and downwardly open C-shaped profiled rails 2 are suspended on support elements 3 or further rails 2. The support elements 3 are designed as double T-beams. Since the present embodiment relates to a single-girder suspension crane, there are provided two substantially horizontally, parallel and spaced-apart first rails 2a which serve as rails of the one-beam towing crane and a second rail 2b which forms a crane rail substantially transverse to the first Aligned rails 2a and along the first rails 2a is movable. For this purpose, the second rail 2b is suspended via two suspension devices 1 in each case on a running gear, not shown, and movable along the first rail 2a. On the second rail 2b a hoist 4 is suspended in a conventional manner as a chain or cable and with a further chassis, not shown, along the second rail 2b moved. The hoist 4 is controllable via a suspended from the hoist 4 pendant switch 5.

The rails 2a, 2b can therefore be used optionally as crane runway or carrier rails.

A rail 2 according to the invention will now be described with reference to FIGS. 2 to 5.

Depending on the length requirement, the rails 2a and 2b each consist of two or more rail sections 2aa and 2ab or 2ba and 2bb.

The rail sections 2aa and 2ab or 2ba and 2bb are on the front side

Butt joints 6 connected together.

By way of example, only the butt joint 6 of the rail sections 2aa and 2ab will be explained by way of example with reference to FIGS. 2 and 3, since that of FIG Rail sections 2ba and 2bb is formed accordingly. The profile of the rail sections of Figures 2 and 3 is similar only to that of Figure 1, but not identical. In order to form the butt joints 6 of the rail sections 2aa and 2ab, the rail sections 2aa and 2ab each have on their outer sides formed as sleeves 7 holding elements which are arranged on the rail section ends 8 in longitudinal angular spaces or grooves 9 of the rail sections 2aa and 2ab.

In the example shown, four sleeves 7 per rail section are used, which are each arranged in corresponding longitudinal grooves 9. There are pro

Rail section longitudinal side two sleeves 7 provided. The sleeves 7 are penetrated by bolts as fasteners and form a transverse to the longitudinal direction of the heads or their nuts

Rail sections extending contact surface 16 as an abutment surface.

The sleeves 7 are fastened to the rail sections 2aa and 2ab, in each case by a weld seam 12 extending in the longitudinal direction of the rail section 2aa and 2ab, on each of the two longitudinal sides of the sleeves 7. The welds 12 need not extend over the entire length of the sleeves 7 and may be formed differently from each other. The end 13 facing away from the end 13 of the weld 12 differs from the longitudinal direction. In this case, the end 13 to the remaining weld 12 forms a Wnkel 14 and extends out of the groove 9 out to the side surface 15 of the rail profile or the continued profile wall. The rail 2 consists in cross section of two symmetrical to the vertical

Longitudinal center plane L arranged identical profiles 20a, 20b.

In this case, the rail has a profile head 22 arranged at the top along the longitudinal center plane L and a profiled body 23 connected thereto below. The profile head 22 is seen in cross-section a substantially C-shaped upwardly open profile head whose opening forms a along the longitudinal center plane L extending gap 24 which is bounded on both sides by first web portions 25a, 25b, viewed from the longitudinal center plane L obliquely extend outwards and at the same time above.

The angle 21 of the web portions 25a, 25b is about 25 degrees relative to the longitudinal center plane L.

The profile head 22 also has in cross-section two opposite downwardly and outwardly extending second web portions 26a, 26b, which are adjacent to the first

Connecting web portions 25a, 25b, and finally inwardly in the direction of the vertical longitudinal center plane L zurückkragende third web portions 27a, 27b, which adjoin the second web portions 26a, 26b, on.

That the profile head 22 is wider at its base and narrows in the direction away from the profile body 23. Thus, a suspension 34 can be used for the rail 2, extending through the gap 24 in the hollow profile head 22nd

"Pivoting" leaves, since thus the diagonal extent (seen in cross-section) is large enough to receive a pivotable pivoting part 35 of the suspension 34, which is then pivoted approximately horizontally while form-fitting in the formed by the first web portions 25a, 25b beads 36a , 36b of the profile head 22. Thus, when appropriate on each other

Coordinated dimensioning of the profile head 22 and the suspension 34 or their Einschwenkteils 25 of the profile head 22 in a simple manner in the transverse direction held by positive engagement.

Alternatively, the height of the profile head 22 would have to be much larger and the rail 2 could be less compact and stiff overall.

In order to attach and fix the suspension 34 on the profile head 22, the aforementioned pivoting part 35 is first pivoted approximately perpendicular to the suspension on one side fitting, so that it can be inserted with the other side in the gap 24. Subsequently, the suspension 34 is slid with the Einschwenkteil 35 obliquely in one of the lower corners of the profile head 22, which are formed by the web portions 26 a, 27 a and 26 b, 27 b.

Then it is possible to insert the other end of the Einschwenkteils 35 past the web portion 25 a and 25 b in the gap 24 and finally the

Swivel pivoting part horizontally and insert into the beads 36a, 36b. Thus, the suspension 34 already carries the rail 2 via the Einschwenkteil 35 without a screw, etc. Thus, the entire load from the pivot pin 37 of the suspension is added, which can be dimensioned much more resilient than a normal bolt of a clamping connection from the prior art.

In addition, fourth are approximately along the longitudinal center plane L extending

Web portions 28a, 28b provided on the profile head 22, which adjoin the third web portions 27a, 27b and connect the profile head 22 with the profile body 23 via the upper profile walls 29a, 29b.

The fourth web portions 28a, 28b of the profile head 22 abut each other and are welded together there. Thus, the profiles 20a, 20b are connected to form the rail 2. The profile body 23 forms with upper substantially horizontally extending

Profile walls 29a, 29b and slightly obliquely down to the longitudinal center plane L extending profile side walls 30a, 30b and two on both sides of a lower slot 31 lying, for this slightly downwardly inclined lower profile walls 32a, 32b a cavity H for trolleys, wherein lower profile walls 32a, 32b a Training tread for the corresponding wheels. Additionally, in the

Region of the upper profile walls 29a, 29b a conductor rail are arranged.

The lower profile wall 32a, 32b at the slot 31 is substantially downwardly and then continued obliquely outwardly and finally obliquely downward. The resulting end portions 33a, 33b of the lower profile wall 32a, 32b allow a lead-out of the weld 12, as explained above.

The angle end portions 33a, 33b of the lower profile wall 32a, 32b is about 110 degrees relative to the horizontal.

LIST OF REFERENCE NUMBERS

 1 suspension device

2 rail

 2aa, 2ab, 2ba, 2bb rail section 3 supporting elements

4 hoist

5 hanging switch 6 butt joint 7 sleeve

8 rail section end 9 groove

12 weld

13 end of the weld 14 angle

15 side surface

16 contact surface

 20a, 20b profile

 21 angles

 22 profile head

23 profile body

24 gap

 25a, 25b first web section 26a, 26b second web section 27a, 27b third web section 28a, 288 fourth web section 29a, 29b upper profile wall 30a, 30b profile side wall 31 slot

 32a, 32b lower profile wall 33a, 33b end portion

34 suspension

 36a, 36b beading

35 pivoting part 37 pivot pin L longitudinal center plane H cavity

Claims

claims 1. rail (2) for monorails and overhead cranes, with a profile head (22) for suspending the rail (2) and an associated profile body (23), wherein the profile head (22) seen in cross-section a substantially C-shaped upwards is open profile head whose opening forms along a longitudinal center plane (L) extending gap (24) bounded on both sides by first web portions (25a, 25b) extending from the longitudinal center plane (L) outwardly extending to the first Web sections (25a, 25b) seen in cross section, two opposite down and outward second web portions (26a, 26b) connect, the rail (2) seen in cross section of two symmetrically to the vertical longitudinal center plane (L) arranged profiles (20a, 20b ), characterized in that the first web portions (25a, 25b) extend obliquely outwards and upwards and the angle (21) of the first Web portions (25a, 25b) 15 to 35 degrees, preferably 20 to 30 degrees, relative to the longitudinal center plane (L). 2. Rail according to claim 1, characterized in that finally connect horizontally inwardly in the direction of the vertical longitudinal center plane (L) zurückkragende third land portions (27 a, 27 b) to the second web portions (26 a, b). 3. Rail according to claim 1 or 2, characterized in that the profile body (23) extending with upper substantially horizontally extending profile walls (29 a, b) and slightly obliquely down to the longitudinal center plane (L) Profile side walls (30a, b) and two on both sides of a lower slot (31) lying to this downwardly inclined lower profile walls (32a, b) forms a cavity (H) for trolleys. 4. rail according to claim 3, characterized in that the lower profile wall (32 a, 32 b) at the slot (31) substantially downwardly and then obliquely outwards and finally obliquely downwards is continued. 5. Rail according to claim 4, characterized in that the angle of the obliquely downwardly continued profile wall (32 a, 32 b) is 90 to 130 degrees relative to the horizontal. 6. Rail according to one of claims 2 to 5, characterized in that fourth approximately along the longitudinal center plane (L) extending web portions (28 a, 28 b), which adjoin the third web portions (27 a, 27 b), the profile head (22) the 5 profile body (23) via the upper profile walls (29a, 29b) connect. 7. Rail according to claim 6, characterized in that the fourth  Web portions (28a, 28b) of the profile head (22) abut each other in the upwardly facing region and are joined together there. O  8. Use of a rail according to one of the preceding claims as a running rail and / or mounting rail for single or Doppelrägerhängekrane.