EP2209731B1 - Portal device for use when mounting or servicing heavy parts of a transport device - Google Patents

Description

The invention relates to a gantry device for use in the assembly or maintenance of heavy parts of a driving device.

Driving devices in the sense of the invention, which can also be referred to as conveyors, are escalators and moving walks with a multiplicity of treading units or traveling platform pallets which are connected to an endless conveyor. Users of the driving devices stand on treads of the kiting units or they go on the pavement pallets in the same direction of movement as the driving devices drive themselves.

During assembly and maintenance or repair of such vehicles must sometimes very heavy and large parts, such as the drive unit installed or removed. Particularly difficult are e.g. the engine and transmission, main shaft, axles and idler shafts, and entire track blocks.

So far, large and very heavy lifting devices are transported to the location of the vehicle for this purpose. For this purpose, large trucks are used with lifting crane. The lifting devices must then be assembled on site before they are used. This preparatory work requires a large logistical effort and costs, not only in the supply of such lifting devices.

Another major disadvantage of the previously used lifting devices is that they are available only in limited quantities due to the size and cost and that is why the operations of these lifting devices must be coordinated so that the lifting devices are ready for use at the right time at the right place.
Due to their structural design and size, they can only be used to a limited extent in tight space / space conditions. When using the previous large and very heavy lifting device is an atrium installation or installation next to walls only difficult or almost impossible. In the DE 203 00 856 U1 is a gantry crane with hinged trestles disclosed.

Here, the invention is intended to remedy and facilitate or simplify. The invention, as characterized in claim 1 solves the problem by providing a novel lifting device that is much cheaper to buy but at the same time also easier to use. The lifting device according to the invention, which is referred to here as a gantry device for use in the assembly or maintenance of heavy parts of a driving device, comprises at least the following elements. There are two lateral two legs are provided, each of the two legs has two spar-like, elongated legs and a connecting element. Each two legs are fastened with their upper ends to one of these connecting elements. Furthermore, four extension elements are provided, wherein at an lower end of each leg such an extension element is arranged. A cross member extends between the two lateral bipeds and at each end of the cross member it is fixed in the corresponding connecting element. This type of arrangement results in a portal-shaped lifting device. A trolley with rollers is arranged on the cross member so that it is displaceable along the cross member in the region between the lateral two legs. And thus a horizontal displacement or application, the heavy machine parts, allows.

The advantages achieved by the invention can be found in the description.

Preferred developments of the device according to the invention are defined by the dependent claims.

Fig. 1

eine Seitenansicht einer Fahrtreppe;

Fig. 2

eine perspektivische Ansicht einer erfindungsgemässen Portalvorrichtung;

Fig. 3

eine Vorderansicht der erfindungsgemässen Portalvorrichtung nach Fig. 2;

Fig. 4A

eine vergrösserte Seitenansicht eines Verbindungselements;

Fig. 4B

eine Ansicht eines gestanzten bzw. geschnitten Blechteiles, das als Bauteil für die Herstellung eines Verbindungselementes verwendet wird;

Fig. 4C

eine Ansicht zweier gestanzter bzw. geschnitten und 3-dimensional verformter Blechteile, die zusammen ein Verbindungselement ergeben;

Fig. 4D

eine perspektivische Ansicht des Verbindungselementes nach Fig. 4A;

Fig. 5

eine Seitenansicht der erfindungsgemässen Portalvorrichtung nach Fig. 2;

Fig. 6A

eine vergrösserte perspektivische Ansicht eines Verlängerungselementes;

Fig. 6B

eine Ansicht eines gestanzten bzw. geschnitten Blechteiles, das als Bauteil für die Herstellung eines Verlänger ungselements verwendet wird;

Fig. 6C

eine Ansicht des gestanzten bzw. geschnitten und 3-dimensional verformten Blechteiles nach Fig. 6B;

Fig. 7

eine perspektivische Ansicht einer weiteren erfindungsgemässen Portalvorrichtung, die sich auf einem Fachwerk bzw. Tragwerk einer Fahreinrichtung abstützt;

Fig. 8

eine Vorderansicht der erfindungsgemässen Portalvorrichtung mit Fachwerk nach Fig. 7;

Fig. 9

eine Seitenansicht des Fachwerkes mit der erfindungsgemässen Portalvorrichtung nach Fig. 7;

Fig. 10

eine vergrösserte Detailansicht des Querträgers einer erfindungsgemässen Portalvorrichtung mit Laufkatze;

Fig. 11A

eine vergrösserte Detailansicht, die weitere Details der Ausführungsform nach Fig. 7 erkennen lässt;

Fig. 11B

eine Ansicht eines gestanzten bzw. geschnitten Blechteiles, das als Bauteil für die Herstellung eines Befestigungselementes verwendet wird;

Fig. 11C

eine Ansicht des gestanzten bzw. geschnitten und 3-dimensional verformten Blechteiles nach Fig. 11B;

Fig. 12

eine weitere perspektivische Ansicht der erfindungsgemässen Portalvorrichtung nach Fig. 7.

The invention will now be described in detail by way of examples and with reference to the drawings. Show it:

Fig. 1

a side view of an escalator;

Fig. 2

a perspective view of an inventive portal device;

Fig. 3

a front view of the inventive portal device according to Fig. 2 ;

Fig. 4A

an enlarged side view of a connecting element;

Fig. 4B

a view of a punched or cut sheet metal part, which is used as a component for the production of a connecting element;

Fig. 4C

a view of two stamped or cut and 3-dimensionally deformed sheet metal parts, which together form a connecting element;

Fig. 4D

a perspective view of the connecting element according to Fig. 4A ;

Fig. 5

a side view of the inventive portal device according to Fig. 2 ;

Fig. 6A

an enlarged perspective view of an extension element;

Fig. 6B

a view of a punched or cut sheet metal part, which is used as a component for the preparation of an extension element ungselements;

Fig. 6C

a view of the punched or cut and 3-dimensionally deformed sheet metal part after Fig. 6B ;

Fig. 7

a perspective view of another inventive portal device, which is supported on a truss or structure of a driving device;

Fig. 8

a front view of the inventive portal device with truss after Fig. 7 ;

Fig. 9

a side view of the framework with the inventive portal device according to Fig. 7 ;

Fig. 10

an enlarged detail view of the cross member of an inventive portal device with trolley;

Fig. 11A

an enlarged detail view, the further details of the embodiment according to Fig. 7 recognize;

Fig. 11B

a view of a punched or cut sheet metal part, which is used as a component for the production of a fastener;

Fig. 11C

a view of the punched or cut and 3-dimensionally deformed sheet metal part after Fig. 11B ;

Fig. 12

a further perspective view of the inventive portal device according to Fig. 7 ,

Fig. 1 shows an escalator 1 or moving walk 1, which connects a first floor E1 with a second floor E2. The escalator 1 has a step band consisting of stages 4. In the case of a moving walk 1 this has a pallet band consisting of pallets. A handrail 3 is arranged on a balustrade 2, which is held at the lower end by means of a balustrade pedestal 6. Below the balustrade base 6 is a so-called truss 5, the in Fig. 1 is shown greatly simplified. This framework 5 (also referred to as a supporting structure) serves as a supporting steel framework for the escalator 1. Details of such a framework 5 or supporting structure 5 are shown in FIGS FIGS. 7 . 8th . 9 and 12 to recognize.

In the further course of the description, the term driving device is used instead of the term "escalator" or "moving walk".

In Fig. 2 a first embodiment of the invention is shown in a perspective view. It is a portal device 10, which is designed specifically for use in the assembly or maintenance or repair or replacement of heavy machine components or metal parts of a driving device 1. The portal device 10 comprises two lateral two legs 11, wherein each of the two legs 11 has two spar-like, stalk-like, elongated legs 12 and a connecting element 13. The legs 12 are attached at their upper ends to this connecting element 13. It may be a screw, rivet, crimp, clinch, or welded connection.

There are four extension members 14 are provided, wherein at an lower end of each leg 12 such an extension member 14 is arranged. The extension elements 14 serve on the one hand as feet or trailer or support for the device 10 in order to ensure a stable, firm footing. On the other hand, the extension elements 14 allow an individual extension of each leg 12, for leveling and leveling (horizontal). As on the construction site uneven floors, aisle and are.

The gantry device 10 further comprises a cross member 15 which extends "portal-like" between the two lateral two legs 11 and which is fixed at each end in the corresponding connecting element 13 or connecting clip 13 or connecting clip 13, as in FIG Fig. 2 is shown.

In order to use the portal device 10 as an efficient lifting tool, a trolley 16 with two rollers 17 is present (see Fig. 10 and Fig. 12 ), which is arranged on the cross member 15 so that it is displaceable or displaceable along the cross member 15 in the region between the lateral two legs 11.

In the following, further details of the portal device 10 will be described. According to the invention, it is important that the device 10 on the one hand very stable and strong in order to lift even large loads of 200 kg to 900 kg, and on the other hand, the device 10 should be lightweight, transportable and inexpensive and easy to install. Only if it is light and if it can be easily assembled and disassembled, this device 10 serves its purpose as a "tool" or makeshift means that can be quickly assembled and dismantled on site. In addition, the portal device 10 should be flexible in order to be constructed / configured and used differently depending on the situation.

In Fig. 3 is a front view of the portal device 10 is shown. In this view, the bipod 11 can be seen. In the upper area is the connecting element 13. At this connecting element 13, the legs 12 and 12 posts or Holm 12 are attached or integrated. Preferably, the legs are at an angle between about 20 and about 40 degrees. The angle is determined by the connecting element 13. According to the invention, the two lateral two legs, together with the connecting element 13 or connecting shears 13 or connecting strap 13, form the shape of an inverted "V" or "V".

At the lower end of each leg 12 is an extension member 14 as described. Each extension element 14 has a foot 22 on the underside, or a foot area 22. The extension element 14 or ground leveling element 14 serves to keep the gantry device 10 horizontal and to compensate for unevenness.

The section B of Fig. 3 is in Fig. 4A shown enlarged. In Fig. 4A you can see details of the connecting element 13. The legs 12 and uprights 12 are fastened or welded in the example shown below in mounting areas 13.1. The ends of two horizontal cylinder tubes or pipes 15.1, 15.2 or round bars or round bars 15.1, 15.2 of the cross member 15 are in Fig. 4A to recognize. The end of the lower cylinder tube 15.2 or pipe or round iron or round steel passes through a passage opening 13.2 of the connecting element 13. The end of the upper cylinder tube 15.1 or tube or round iron or round steel, however, is located in a support region 13.3 of the connecting element 13.

The connecting elements 13 or connecting shears 13 and connecting strap 13 are made of stamped or water-jet cut or laser cut or plasma cut and then 3-dimensionally deformed sheet metal, preferably stainless steel (stainless steel) or zinc sheet or steel sheet. In Fig. 4B such a sheet metal element 30 is shown after punching or cutting. The two vertical, dashed lines mark the lines along which the sheet metal element 30 is bent or reshaped in a further processing step. Section 30.1 remains in the plane of the drawing, while the middle section 30.2 is bent 90 degrees back together with section 30.3. Then, in a further step, the section 30.3 is bent again by 90 degrees. Viewed from above results in a component that has the shape of a "U". The U shape is in Fig. 4D to recognize. The tabs 30.4 with hole for a screw 21 or threaded rod 21 are not bent.

There are now two pieces of such sheet metal elements 30 set against each other, as in Fig. 4C can be seen. That is, the connecting element 13 is made of two sheet metal elements 30 (as in Fig. 4B shown) to a single, complete component, as in Fig. 4C shown, assembled or assembled together.

The connecting elements 13 have two underlying attachment points 13.1 in order to fix the two upper ends of the legs 12 or uprights 12 or spars 12 can. In addition, they have two through holes 13.2 to receive or insert the circular end 15.2 of the cross member 15 horizontally. In Fig. 4D It can be seen that there are two such through holes 13.2, namely a first in the front vertical surface of the connecting element 13 and a second in the rear vertical surface of the connecting element 13. The hole 30.5 is used to fasten the two sheet metal elements 30 and the cross member 15 together to be able to. The position of the corresponding screw 30.6 or Ab-connectors 30.6, or dowel pins 30.6 is in Fig. 4C indicated schematically. Furthermore, the two sheet metal elements 30 are connected to each other via the tabs 30.4 or their holes. The screw 21 or threaded rod 21 connects via the tab 30.4, the sheet metal elements 30, the connecting element thirteenth

The connecting elements 13 have two bearing areas 13.3 to let the upper circular end 15.1 of the cross member 15 lie horizontally and the receiving area 13.2 to accommodate the lower circular end 15.2 of the cross member 15 horizontally.

Because each connecting element 13 is composed of two identical sheet-metal components 30, both the costs for these connecting elements 13 and their weight are low. The same applies to other elements of the device 20, as will be described below.

Fig. 5 shows further details of the portal device 10 in a side view. In this view, it can be seen that the cross member 15 comprises at least two parallel cylindrical tubes 15.1, 15.2 or tubes 15.1, 15.2 or round bars or round bars 15.1, 15.2, which are arranged and fixed at a uniform distance A1 from one another. In the space between the tubes or round bars 15.1 and 15.2 is a metal plate, which serves as (connecting) web 15.3. Preferably, in the web 15.3 a plurality of holes 15.4 are formed in order assembly chains, hooks, shackles, snap hooks, Langhaken- trusses, grippers, pulleys, wire ropes, polypropylene ropes, lashing straps, thimbles, clamps, load cells, traction measuring devices, balancer spring trains, high-strength To be able to attach eyebolts, latches, various slings or the like. Furthermore, a weight reduction is given by the holes 15.4. Details are in Fig. 10 to recognize.

In the FIGS. 6A to 6C Further aspects of the invention are shown. In Fig. 6A an extension member 14 is shown attached to a lower end of the leg 12 and stirrup 12 and Holmes 12, respectively. The extension element 14 or leveling element 14 is made of a stamped or cut and 3-dimensionally deformed sheet metal element 31. The corresponding sheet metal element 31 after stamping but before deformation is in Fig. 6B shown. The two vertical, dashed lines mark the lines along which the sheet metal element 31 is bent or reshaped in a further processing step. The section 31.1 remains in the plane of the drawing, while the middle section 31.2 is bent 90 degrees together with the section 31.3 to the rear. Then, in a further step, the section 31.3 is bent again by 90 degrees. Viewed from above results in a component 31, which has the shape of a "U". This U-profile has an inner diameter or a clear inner width, which is slightly larger than the outer diameter of the legs 12 and 12 stayer or Holme 12. As in Fig. 6A can be seen, the component 31, after it has been punched or cut and reshaped, individually attached to the lower end of the leg 12 and stayer 12 and Holmes 12. The holes 31.4 are used to fix the extension element 14 or leveling element 14 on the leg 12 or upright 12 or spar 12. For this purpose, the leg 12 or uprights 12 and Holm 12 in the lower region corresponding mating holes or receiving holes. There are several such holes 31.4 available to move the extension member 14 down or up can. As a result, each leg 12 or uprights 12 or spar 12 can be individually lengthened or shortened, thereby producing a perfect and exact leveling.

The portal device 10, which has been described so far, can be placed next to the driving device 1 or over the driving device 1 (like a bridge). By means of a chain hoist or a trolley 16, which serves as a hoist, heavy machine components or metal elements can be lifted from an escalator pit 40 or moving-floor pit 40 or lowered or lowered into the pit 40.

In the FIGS. 7 . 8 and 9 Now details of a particularly preferred embodiment are shown. It is a portal device 10, which can be fastened with two legs 12 or uprights 12 or struts 12 on a horizontal (transverse) tube 26 or (transverse) support 26 or crossbar 26, the / the / in the truss frame 5 and 5 in the truss or support structure 5 of the driving device 1 can be used. By this type of arrangement, you can connect the device 10 with little effort firmly to the truss 5 and 5 or truss framework 5 frame. The cross member 15 is now partly above the escalator pit 40 or moving pavement 40 of the truss 5. Heavy drive elements, such as the engine or the complete drive unit or the main shaft of the vehicle 1, so easily and quickly and easily and quickly from the Pit 40 will be lifted.

In Fig. 8 is the corresponding mounted portal device 10 in front view and in Fig. 9 shown in the side view.

In Fig. 10 Details of a possible trolley 16 are shown, which is moved along the cross member 15. The trolley 16 preferably has an upper roller 17.1 and a smaller lower roller 17.2 and / or a lower axle 17.2. In the support shaft 17.2 of the trolley 16, a pulley or a hoist can be used or mounted, thereby the heavy loads or the heavy machine components can be lifted and / or manipulated or moved horizontally. On the side are two flat steel elements 16.1 or metal strips 16.1 or U-profiles 16.1 or angle profiles 16.1. The trolley 16 can have a small drive (not shown) in order to be able to lift heavy machine components or metal elements by means of a chain. But it can also be a kind of pulley with chains or steel cables are used, which is operated manually or by motor.

Fig. 11A shows details of the temporary attachment of the portal device 10 on a (transverse) tube 26 or crossbar 26. At the foot 22 of the leg 12 or stirrup 12 and Holmes 12, a fastening means 25 is attached, which the tube 26th or crossbar 26 clasped. The fastening means 25 enclose the foot region 22 of the leg 12 or stirrup 12 or spar 12 and thus connect the leg 12 stably with the tube 26. The tube 26 or the transverse bar 26 itself has at each end a fastening means or fork 33 , These fastening means or forks 33 allow easy installation or insertion of the tube 26 or crossbar 26 between two longitudinal members 7 of the truss 5 or supporting structure. 5

The fastening means 25 comprise, per leg 12, two identical punched or cut and 3-dimensionally deformed sheet-metal components 32, preferably of sheet steel or stainless steel (stainless steel) or zinc sheet. Such a sheet metal component 32 after cutting or punching is in Fig. 11B shown. The two horizontal lines mark the lines along which the sheet metal component 32 is bent or reshaped in a further processing step. Section 32.1 remains in the plane of the drawing, while the middle section 32.2 is bent 90 degrees back together with section 32.3. Then, in a further step, the section 32.3 is bent again by 90 degrees. Viewed from the side results in a sheet metal component 32, which has the shape of a "U's". The U-shape is rudimentary in Fig. 11A to recognize. The holes 32.4 are used to join two such sheet metal components 32 to form a clamp 25 or clamp 25 or fastening means 25. In Fig. 11C is the additional second sheet metal component 32 (2 pieces) indicated by a dashed line.

In Fig. 12 is shown in another perspective view of the preferred embodiment of the invention. The portal device 10 is supported, seen in the drawing on the right, on a removable (transverse) pipe 26 or crossbar 26 in the truss 5 or 5 structure. In the drawing, seen on the left, is the portal device 10 with two legs 12 or Stehern 12 and spars 12 of the bipod 11 on the floor or on the Rohestrich the mounting location. A trolley 16 is movable or adjustable along the cross member 15 and can be arbitrarily adjusted or positioned above the pit 40. In order to give the device 10 further stability, two transverse struts 19 are provided, which prevent the legs 12 or uprights 12 or struts 12 of the two two legs 11 from being pressed or compressed apart under great load or excessive load.

The device 10 is lightweight and inexpensive. The handling is very simple and it takes less steps to build up or down the device 10. In addition, the device 10 is very flexible and universally applicable. Furthermore, the portal device 10 can be used several times a day at different locations and is not localized for a long time. In addition, the still-life of the escalator or the moving walk is significantly shortened and the operator gets a significant added value or considerable added value.

As described, the invention can be equally applied to escalators and moving walks.

Claims (14)

1. Gantry device (10) for use in the mounting or maintenance of heavy parts of transport equipment (1), wherein the gantry device (10) comprises:

   - two lateral bipods (11), wherein each of the bipods (11) comprises two strut-like elongate limbs (12) and a connecting element (13) and the limbs (12) are fastened at the upper ends thereof to this connecting element (13),

   - four extension elements (14), wherein one such extension element (14) is arranged at a lower end of each limb (12) and

   - a cross member (15) which extends between the two lateral bipods (11) and is fastened to each end of the cross member (15) in the corresponding connecting element (13),

   characterised in that

   - the connecting elements (13) consist of punched or water-jet-cut or laser-cut or plasma-cut and three-dimensionally shaped sheet metal, preferably of steel sheet or stainless steel or zinc sheet,

   - the connecting elements (13) have two underneath fastening points (13.1) in order to be able to fasten the two upper ends of the limbs (12),

   - the connencting elements (13) have two passage holes (13.2) in order to make horizontal insertion of a first circular end (15.2) of the cross member (15) possible and

   - the connecting elements (13) have two support regions (13.3) in order to be able to horizontally support a second circular end (15.1) of the cross member (15).
2. Gantry device (10) according to claim 1 with a crab (16) with at least one roller (17.1) which is so arranged at the cross member (15) that it is displaceable or movable along the cross member (15) in the region between the lateral bipods (11).
3. Gantry device (10) according to claim 1 or 2, characterised in that the two lateral bipods (11) together with the connecting element (13) have the form of an inverted "V".
4. Gantry device (10) according to any one of claims 1 to 3, characterised in that each connecting element (13) is composed of two identical sheet metal sections (30) and in the assembled state has a U-shape as seen from the side, wherein the underneath fastening points (13.1) lie in the lower transverse region of the "U's" and/or the passage holes (13.2) and the support regions (13.3) lie in the two lateral limbs of the "U's".
5. Gantry device (10) according to claim 4, characterised in that the two sheet metal sections (30) are held together by a screw connection (21, 30.4) or threaded rod connection (21, 30.4) or bolt connection (21, 30.4).
6. Gantry device (10) according to any one of the preceding claims, characterised in that the cross member (15) comprises at least two parallelly extending cylindrical tubes or pipes (15.1, 15.2) or round irons or round steels (15.1, 15.2) which are arranged at a uniform spacing (A1) from one another and wherein a metal plate serving as a web (15.3) is disposed in the intermediate space between the cylindrical tubes or pipes (15.1, 15.2) or round irons or round steels (15.1, 15.2).
7. Gantry device (10) according to any one of the preceding claims, characterised in that each extension element (14) is designed for telescopic extension of the limb (12) or upright (12) and has at least one foot (22).
8. Gantry device (10) according to any one of the preceding claims, characterised in that each extension element (14) is made of two identical punched or water-jet-cut or laser-cut or plasma-cut and three-dimensionally shaped sheet components (31), preferably of steel sheet or stainless steel or zinc sheet.
9. Gantry device (10) according to any one of the preceding claims, characterised in that at least one of the lateral bipods (11) is connected or clamped or plugged or detented or bonded at the lower end in the region of the extension elements (14) with or to a horizontal crossbar (26) by way of fastening means (25).
10. Gantry device (10) according to claim 9, characterised in that the crossbar (26) is designed for insertion between two longitudinal girders (7) of a framework (5) of transport equipment (1), wherein the gantry device (10) in the mounted state is then at least partly propped up on or supported on the framework (5) or support structure (5).
11. Gantry device (10) according to claim 9 or 10, characterised in that the fastening means (25) for each limb (12) or upright (12) or strut (12) is made of two identical punched or water-jet-cut or laser-cut or plasma-cut and three-dimensionally shaped sheet metal components (32), preferably of steel sheet or stainless steel or zinc sheet.
12. Gantry device (10) according to any one of the preceding claims, characterised in that the cross member (15) has a length of at least 1000 millimetres, preferably 3000 millimetres.
13. Gantry device (10) according to any one of the preceding claims, characterised in that the cross member (15) has for a length of 3000 millimetres a weight of 21 kilograms.
14. Gantry device (10) according to any one of the preceding claims, characterised in that the complete gantry device (10) inclusive of the crab (16) with roller (17.1) has for a cross member (15) length of 3000 millimetres a weight of 39 kilograms.

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