Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
  • B66C11/00—Trolleys or crabs, e.g. operating above runways
  • B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
  • B66C11/04—Underhung trolleys
  • B66C11/06—Underhung trolleys running on monorails
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
  • B61B13/00—Other railway systems
  • B61B13/04—Monorail systems
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
  • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
  • B66C9/06—Travelling gear incorporated in or fitted to trolleys or cranes for more than one rail gauge

Definitions

• Trolley trolleys of hoists run along rails, which are often formed by I-profile beams. Their dimensions are standardized.
• the size of the cross-sectional dimensions of the I-beam depends on the maximum load capacity and the spanned eice. Even when using hoists with the same load capacity, I-beams of different widths are used. Since the lower flange of the I-beam extends through the chassis, the distance between the two frame halves varies according to the width of the lower flange of the respective beam.
• each of the wheel carriers contains a cylindrical bore which is parallel to the axis of rotation of the impellers. Lead the connecting column in question through this hole. - In this way you can move the Wheel carrier on the connecting column adjust the width as desired and infinitely.
• cross bores are provided in each of the wheel carriers, which cut the receiving bore for the connecting column and run at right angles to the latter.
• a wedge with cutting ribs sits in the cross hole and is secured by a pressure screw. When the pressure screw is tightened, the ribs of the wedge cut into the circumferential surface of the connecting column and thus firmly fix the wheel carrier in question on the connecting column.
• the two wheel carriers are connected to one another via at least one threaded rod and a cylinder bolt.
• the cylinder bolt is provided at both ends with smaller diameter threaded pins that pass through corresponding holes in the wheel carriers.
• the width of the undercarriage is adjusted by inserting more or less washers between the wheel carrier and the shoulder on which the cylinder bolt merges into the respective threaded pin. This is a stepless adjustment the width of the chassis not described. In addition, assembly is not always easy.
• the threaded bolt is located between the cylinder bolt and the chassis rail.
• the torque resulting from the wheel support forces leads to tensile stress in the threaded rod and compressive stress in the cylinder bolt, which is much larger in diameter.
• these conditions are only accurate if the correct width is set on the threaded rod with the help of lock nuts. This requires appropriate care, which cannot always be assumed at the installation site.
• the setting tolerances are not exactly adhered to, the calculated load values do not match the actual load values.
• the connecting column is provided with a thread on the outside.
• One of the two wheel carriers contains a rigidly attached threaded nut for receiving the connecting column, through which the connecting column is screwed.
• the end of the connecting column adjacent to the other wheel carrier is cylindrically smooth and is inserted in a corresponding cylindrical receiving opening.
• the connecting column By turning the connecting column, the two wheel carriers are screwed together or moved away from each other.
• the manufacturing effort for this solution is considerable. It is not readily possible to provide the connecting column with a corresponding Gewmdeprofll that runs in the threaded nut of a wheel carrier with a close tolerance. After all, the connecting column must absorb considerable bending forces, which arise because the wheels, under load and in cooperation with the lower flange of the rails, endeavor to bend the two wheel carriers away from one another.
• the wedge-shaped grooves created by the thread grooves increase the risk of permanent breakage of the connecting column as a result of the notch effect emanating from the grooves.
• the two wheel carriers are connected to one another via at least one threaded rod and a cylinder bolt.
• the cylinder bolt is provided at both ends with a smaller diameter threaded pin that passes through corresponding holes in the wheel carriers.
• the width of the undercarriage is adjusted by inserting more or less washers between the wheel carrier and the shoulder on which the cylinder bolt merges into the respective threaded pin. This means that the width of the undercarriage cannot be continuously adjusted.
• assembly is complicated.
• the threaded bolt is located between the cylinder bolt and the chassis rail.
• the torque resulting from the wheel standing forces leads to a tensile stress n of the threaded rod and a compressive stress in the cylinder bolt, which is much larger in diameter.
• n of the threaded rod and a compressive stress in the cylinder bolt, which is much larger in diameter.
• these conditions only exist exactly if the correct width is set on the threaded rod using lock nuts. This requires great care, which cannot always be assumed at the installation site.
• the setting tolerances are not exactly adhered to, the calculated load values do not match the actual load values.
• the frame cheek contains a corresponding sliding guide device.
• this sliding guide device consists of two openings which are aligned and spaced apart and which are formed coaxially with one another and in the walls of the frame group.
• This embodiment favors box-like profiles for producing the frame groups. It can make use of the essential advantages of box-like profiles, which consist in the fact that they are much lighter than solid construction elements with the same load-bearing capacity.
• the receiving device for the connecting column can be designed similarly to the sliding guide device, it then only being necessary to additionally provide an axial securing device for the connecting column.
• a very simple axial securing is obtained if the connecting column is provided at one end with a transversely cut tangential groove into which a plate-shaped securing element engages, which is screwed onto the relevant side cheek.
• the threaded rod can be a commercially available threaded rod and is expediently fastened to the frame cheeks with the aid of countered nuts.
• each frame cheek contains a corresponding hole as a measuring device for the threaded rod.
• the opening through which the threaded rod passes is assigned a further opening through which a tool for actuating or holding the nut in the frame is to be inserted.
• a travel motor which is preferably designed as a gear motor, is flanged to a frame cheek.
• the output shaft is preferably designed as a profiled shaft on which slow-moving and rotating drive pinions are seated.
• the drive pinions mesh with toothed wheels that are non-rotatable with the respective wheels.
• the width adjustment and assembly are particularly simple if the pinions in each of the two side cheeks are mounted so that they cannot rotate axially.
• FIG. 2 shows the trolley according to FIG. 1 in an end view
• a trolley 1 is illustrated, which is intended to run along a running rail 2.
• the travel rail 2 consists of an I-beam with an upper flange 3, a lower flange 4 and a straight web 5 connecting the two flanges.
• the trolley carriage 1 runs on the upper side of the lower flange 4
• the main components of the trolley 1 include two frame cheeks 6, 7 arranged parallel and at a distance from one another, between which the running rail 2 runs and which are connected to one another via two mutually parallel connecting columns 8.
• the frame cheeks 6, 7 are illustrated as continuous frame cheeks for the sake of simplicity of illustration. Without changing the essence of the invention, the frame cheeks 6, 7 could not be continuous, but could consist of several parts or sections
• the other frame cheek 7 is provided with a travel drive motor 11 and a counterweight 12.
• the two frame cheeks 6, 7 are mirror images or, apart from fastening holes for the drive motor 11 or the cable 9, may even be the same. At least in the area of the connecting columns 8, they are designed as a hollow box profile
• the frame cheek 7 has two spaced apart and interconnected side walls 13 and 14.
• the side wall 13 forms which is adjacent to the running rail 2, the inner side wall, while the other side wall 14 is accordingly the outer side wall.
• Both side walls 13 and 14 extend parallel to the running rail 2 and are essentially straight.
• the inner side wall 13 is provided with a bore 15 which is coaxial with a bore 16 in the outer side wall 14.
• the bore 16 has a slightly smaller diameter than the bore 15. It serves to receive a cylindrical extension 17 of a cylindrical journal 18 which, starting from the bore 16, projects through the bore 15 in alignment therewith essentially without play.
• the cylindrical extension 17 merges with the axle journal 18 via a flat shoulder 19 m and lies with this flat shoulder 19 against the inside of the outer side wall 14.
• the outside of the cylindrical extension 17 is provided with a circumferential annular groove, m a snap ring 21 is used as an axial securing.
• the axle pin 18 is perpendicular with its longitudinal axis on the plane defined by the web 5 and projects in the direction of the opposite frame cheek 6.
• two ball bearings 23 are seated on a cylindrical extension 22 a snap ring 24 and an annular shoulder 25 axially secured.
• the annular shoulder 25 is located at the transition from the tapered extension 22 into the non-tapered part of the journal 18.
• the flange 28 adjacent to the side cheek 7 merges into a toothed wheel 29 on this side.
• a collar bush 33 is pressed into the bore 31 and has its collar 34 on the outside of the inner side wall 13
• the flange bushing 33 serves as a seat for a ball bearing 35 housed therein, which in turn is secured by means of a snap ring 36 in the flange bushing 33 between the snap ring and a radially inwardly projecting shoulder 37.
• the axis of the deep groove ball bearing 35 runs parallel to the axis of the axle pin 18.
• a hollow shaft 38 is mounted, which is integrally formed on a pinion 39.
• the pinion 39 meshes with the gear 29
• the hollow shaft 38 is axially secured in the deep groove ball bearing 35 with the aid of a further snap ring which cannot be seen in the figure Both through the pinion 39 and the hollow shaft 38 a through bore 41 provided with a profiled toothing passes through.
• the sliding guide device 42 for the connecting column 8 in the side cheek 7.
• the sliding guide device 42 consists of two openings 43 and 44 which are coaxial with one another and are located in the inner and in the outer side walls 13, 14. Depending on the distance between the two side walls 13 and 14, the openings 43 and 44 are also spaced apart from one another. They have the same cross-sectional shape as the cross section of the connecting column 8.
• the connecting column 8 is preferably cylindrical, which is why the two openings 43 and 44 also have circular openings are with a diameter that is slightly larger than the outer diameter of the connecting column 8
• a further slide guide device which corresponds in construction to the slide guide device 42 shown, is, based on FIG. 3, behind the recognizable slide guide device 42 where the other connecting column 8 extends, as shown in FIG
• a receiving device 45 for a threaded rod 46 is provided in the side cheek 7.
• the receiving device 45 consists of two aligned bores 47 and 48 m of the inner and outer side walls 13, 14. Below the receiving device, the frame cheek 7 is open at the bottom .
• the other side wall 6, on which the cable 9 is attached is constructed essentially in mirror image.
• the side cheek 6 is designed as a hollow box section and has two mutually parallel, spaced apart side walls 53 and 54.
• the inner side wall 53 contains a bore 55 which is coaxial with the bore 15 and with which a bore 56 of the outer side wall 54 is aligned.
• These two bores 55, 56 are used to fasten an axle journal 58, which points towards the other axle journal 18 and is coaxial with it
• Axle journal 58 is axially secured in the same way as the axle journal 18 in the outer side wall 54 with the aid of a snap ring 62 and an annular shoulder 59.
• This bore 71 is aligned with the bore 31 in the other frame cheek 7 and with a bore 72 in the outer side wall 54
• the ball bearing seated in the collar bushing 73 serves for the rotatable mounting of a pinion which is designed in exactly the same way as the pinion 39 and which meshes with the gear wheel of the impeller 66 because of the unopened representation of FIG Cover 69 this pinion assigned to the side cheek 6 is not recognizable.
• a similar slide guide device 82 which serves as a receiving device, corresponds to the slide guide device 42 of the side wall 7 and is composed of the same structural elements, namely an opening 83 in the inner side wall 53 and an opening 84 m in the outer side wall 54.
• These two openings 83 and 84 are circular, circular and coaxial with one another and with the openings 43 and 44. Their diameter is equal to the outer diameter of the connecting column 8.
• the frame cheek 6 also has a second impeller, which is axially parallel to the visible impeller 66 and is located directly behind it, which is why it is covered by the visible impeller 66. Likewise, there is another one for the other connecting column 8 below the undetectable further impeller Sliding guide device 82.
• a receiving device 85 corresponding to the receiving device 45, consisting of two bores 87 and 88 in the inner and outer side walls 53, 54.
• the connecting column 8 contains, at its end projecting beyond the outer side wall 54, a tangentially extending groove 89 which is rectangular in cross section.
• this groove 89 there is an elongated, likewise rectangular in cross section Locking spring 91 which is screwed to the outside of the outer side wall 54 by means of two screws 92.
• axle journals 18 and 58 on which the ball bearings 23 together with the wheels 26 and 66 are attached, can be mounted in the frame cheeks 6 and 7.
• the axle journals 18 and 58 are inserted through the opening 15 until the cylindrical extension 17 looks outwards through the outer side wall 14 and 54.
• the axles 18 and 58 are axially secured. The transverse forces that occur later in operation are absorbed by the walls of the two bores 15 and 16 or 55 and 56.
• Each of the two frame cheeks 6, 7 is equipped with two wheels, one wheel being provided with a gear 29 which meshes with the associated pinion 39.
• two continuously cylindrical connecting columns 8 are inserted into the two mutually parallel slide guide devices or receiving devices 82 of the frame cheek 6, which later carries the cable drum.
• the connecting columns 8 have a constant cross section over the entire length and are smooth on the outside. They lead through the bores 83 and 84 with a correspondingly small amount of play.
• connection columns 8 which are inserted from the openings 83, is as long continued until the tangential rectangular groove 89 just appears on the outside of the outer side wall 54. Then the relevant connecting column 8 is optionally rotated accordingly, so that the locking spring 91 can engage from the side in the groove 89 and the two cap screws 92 can be inserted through corresponding holes in the locking spring and screwed into the threaded bore of the outer side wall 54.
• the frame cheek 6 is provided with two connecting columns 8 running parallel to one another, which on top of that are parallel to the axes of rotation of the rollers 66 of the side cheek 6.
• the other frame cheek 7 is now pushed onto the connecting columns 8 from the still free end of the connecting columns 8. These slide through the two axially parallel slide guide devices 42.
• the trolley thus prepared can be slipped on from below over the lower flange 4, since the connecting columns 8 have a length which is sufficient for the gap between the parts fastened to the two frame cheeks 6, 7 to be large enough to accommodate the flange 4 to let happen.
• the frame cheek 6, for example is set up with its rollers 66 on the upper side of the flange 4.
• the other frame cheek 7 is pushed onto the connecting columns 8 so far against the running rail 2 until the wheels of the frame cheek 7 can also rest on the flange 4.
• the threaded rod 46 is underneath the connecting column 8 in the associated receiving device. gen 45 and 85 mounted.
• the Gewmdestange 46 based on Fig. 3, coming from the right through the opening 47 em a long way through.
• a threaded nut 43 is screwed on there, which is inserted from below between the side walls 13, 14.
• the threaded rod 46 is gradually pushed in the direction of the frame cheek 6.
• two further threaded nuts 94 and 95 are also screwed onto the threaded rod 46.
• the rotation of the Gewmdestange 46 is continued while holding the Gewmdemut 93 at the same time until the Gewmdestange 46 reaches with its free end through the bore 87 m the space between the two rare walls 53 and 54
• a fourth threaded nut 96 is screwed onto the part of the threaded rod 46 which projects through the bore 87.
• the two threaded nuts 95 and 96 are now screwed towards one another or countered against one another with the intermediate wall 53 on the threaded rod 46.
• the Gewmdestange 46 is thereby fixed in the frame cheek 6.
• the running surfaces 27 rest on the flange 4 on both sides of the web 5 and the wheel flange 28 is in the immediate vicinity the lateral edges of the flange 4.
• the second threaded nut 93 is also tightened, whereby the inner side wall of the frame cheek 7 is fixed between the two threaded nuts 93 and 94.
• any desired undercarriage width can be set in accordance with the width of the flange 4.
• the slide guide 42 acts as an essentially clamp-free slide guide, which allows the side wall 7 to be freely moved on the respective connecting column 8. The setting reached is fixed by locking the two threaded nuts 93, 94 at the corresponding point.
• the cable 9 is finally fastened to the frame cheek 6 and the travel drive otor 11 is screwed to the frame cheek 7, the transmission output shaft 100 of which leads through the aligned drive pinions 39.
• the output shaft 100 is provided with a toothing which is complementary to the profile toothing 41, so that the output shaft 100 can be freely inserted through the two pinions 39, while at the same time a rotationally fixed connection between see the output shaft 100 and the pinions 39 results.
• Disassembly is carried out in the reverse order.
• the two frame cheeks running to the side of the running rail are connected to one another via two connecting columns.
• the connecting columns are smooth cylindrical on the outside and are inserted in receiving or sliding guide devices which are formed in the frame cheeks below the running rail.
• the distance is set and fixed with the aid of threaded means, preferably lock nuts, located on the connecting rod. This type of fixation does not damage the shape of the guide columns, so that easy disassembly is possible at any time.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Transportation (AREA)
• Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
• Paper (AREA)
• Lighting Device Outwards From Vehicle And Optical Signal (AREA)
• Handcart (AREA)
• Bearings For Parts Moving Linearly (AREA)
• Machines For Laying And Maintaining Railways (AREA)

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• 1996
  • 1996-07-24 DE DE19629785A patent/DE19629785C1/de not_active Expired - Fee Related
• 1997
  • 1997-07-17 EP EP97931730A patent/EP0912383B1/fr not_active Expired - Lifetime
  • 1997-07-17 AT AT97931730T patent/ATE207427T1/de not_active IP Right Cessation
  • 1997-07-17 WO PCT/DE1997/001510 patent/WO1998004445A2/fr active IP Right Grant
  • 1997-07-17 ES ES97931730T patent/ES2162316T3/es not_active Expired - Lifetime
  • 1997-07-17 US US09/230,270 patent/US6516728B1/en not_active Expired - Lifetime
  • 1997-07-17 DE DE59705099T patent/DE59705099D1/de not_active Expired - Lifetime

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