WO1996000674A1 - Systeme de transport sur rail - Google Patents

Systeme de transport sur rail Download PDF

Info

Publication number
WO1996000674A1
WO1996000674A1 PCT/FI1995/000376 FI9500376W WO9600674A1 WO 1996000674 A1 WO1996000674 A1 WO 1996000674A1 FI 9500376 W FI9500376 W FI 9500376W WO 9600674 A1 WO9600674 A1 WO 9600674A1
Authority
WO
WIPO (PCT)
Prior art keywords
guiding rail
rail
wheels
rolling
wheel
Prior art date
Application number
PCT/FI1995/000376
Other languages
English (en)
Inventor
Markus Roschier
Original Assignee
Markus Roschier
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Markus Roschier filed Critical Markus Roschier
Priority to AU27943/95A priority Critical patent/AU2794395A/en
Publication of WO1996000674A1 publication Critical patent/WO1996000674A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C13/00—Locomotives or motor railcars characterised by their application to special systems or purposes
    • B61C13/04—Locomotives or motor railcars characterised by their application to special systems or purposes for elevated railways with rigid rails

Definitions

  • the present invention concerns a rail transport system as defined in the preamble to Claim 1.
  • a system comprising a travelling crab provided with a traction motor, and a guiding rail fixed to a stationary structure, such as a building, carried and directed by which said travelling crab has been arranged to move, driven by said traction motor, in order to transport a load suspended from the crab, along the transport track defined by the guiding rail.
  • the guiding rail comprises two rolling surfaces facing away from each other, provided on opposite sides of the guiding rail facing away from each other.
  • the travelling crab comprises a pair of wheels, its wheels being disposed on opposite sides of the guiding rail for running on said rolling surfaces in such manner that the guiding rail lies between the wheels.
  • the guiding rail presents two surfaces enclosing an angle with each other and the traction surfaces of the wheels have been given a corresponding angular shape. Since the configurations of the contact surfaces of wheel and guiding rail are complementarily equal in shape, lineal contact is established between guiding rail and wheel. The line of contact lies in a plane transversal to the longitudinal direction of the rail, and in one plane with the wheel's axis of rotation. (See Figs 1 and 2.)
  • a specific application where systems like this are employed is in connection with taking care of real estate, where the transport system is used to suspend movable service platforms, hanging cages, hanging ladders, etc. equipment.
  • the transport system is used to suspend movable service platforms, hanging cages, hanging ladders, etc. equipment.
  • Using such equipment one is enabled to maintain and service outside and inside facades, inside and outside surfaces of roofs of buildings, e.g. to wash roof surfaces of glass, to install facade elements, to replace broken windows, etc.
  • the sectional rail on which the travelling crab moves together with the equipment thereto affixed may be mounted to run the whole circuit of the building in that at the angles it has been curved to match the configuration of the building.
  • the guiding rail may equally deviate from horizontal, with upward or downward inclination, or be vertical, and the travelling crab provided with drive and brake means may negotiate the uphill and downhill stretches thus produced, as well as in vertical direction along the guiding rail.
  • the problem embarrassing the system known through the reference FI 74433 is that the distance from the wheel's axis of rotation of the point of contact is different at different points of the line of contact, the peripheral velocity of the wheel's point of contact being lower at a point of the line of contact lying closer to the axis of rotation than at such a point of the line of contact where the distance from the wheel's axis of rotation is greater.
  • These different peripheral velocities on the length of the line of contact give rise to friction between wheel and rail, as well as shear stresses parallelling the surface of the guiding rail, by effect of the friction forces between wheel and rail. Continuously repeated, these cause attrition and fatigue of the surface, and matter tends to be detached from the rail surface.
  • the object of the invention is to eliminate the drawbacks mentioned.
  • the transport system of the invention is characterized by that which is stated in Claim 1.
  • the rail transport system of the invention comprises a travelling crab, comprising a traction motor, and a guiding rail fixed to a stationary structure such as a building, the travelling crab being disposed, carried and guided by said rail, to move, driven by the traction motor, for transporting a load suspended from the travelling crab, along the transport track defined by the guiding rail, and the guiding rail of the system comprising two rolling surfaces facing away from each other, and which are located on opposite sides of the guiding rail, facing away from each other, and the travelling crab comprises a pair of wheels, its wheels disposed on opposite sides of the guiding rail, for resting on the rolling surfaces in such way that the guiding rail lies between the wheels.
  • the configurations of the rolling surfaces and of the wheels cooperating with them have been disposed to produce tangential, punctiform contacts between rolling surfaces and wheels.
  • the invention affords the advantage that by means of punctiform contact an accurately defined point of contact is obtained between guiding rail and wheel, whereby no so-called internal friction will be incurred between wheel and rail as is the case with lineal contact conforming to the state of art.
  • the rail is subject mainly to pressure at right angles against the surface, not so much to shear parallelling the surface nor to friction, by reason of which the wheel shows no tendency of wearing down the surface of the guiding rail or of detaching material therefrom.
  • Fig. 1 presents, schematically and partly sectioned, a system conforming to technology of prior art
  • Fig. 2 presents, schematically and in elevational view, the guiding rail and pair of wheels in the system of Fig. 1,
  • Fig. 3 presents, schematically and partly sectioned an embodiment of the system of the invention.
  • Fig. 4 presents, schematically and in elevational view, the guiding rail and pair of wheels in the system of Fig. 3,
  • Fig. 5 presents a detail of the guiding rail and wheel in the system of Figs 3 and 4,
  • Fig. 6 presents a detailed diagram of the guiding rail and wheel in another embodiment of the system of the invention.
  • Fig. 7 presents a detailed diagram of the guiding rail and wheel in a third embodiment of the system of the invention.
  • a rail transport system previously known through the reference FI 74433, comprising a travelling crab 1 with traction motor 2 and a guiding rail 3 to be fixed to a stationary structure such as a building, the travelling crab running carried and guided by said guiding rail and driven by the traction motor 2.
  • the guiding rail 3 advantageously consists of an extruded section beam of aluminium. From the travelling crab 1 a load can be suspended, which moves along with the travelling crab, following the transport track defined by the guiding rail.
  • the guiding rail 3 has two rolling surfaces 4,5 facing away from each other, and which lie on different sides of the guiding rail facing away from each other.
  • the travelling crab 1 comprises a pair of wheels 6,7, its wheels 6,7 being disposed on different sides of the guiding rail so that they can rest on the rolling surfaces 4,5 in such manner that the guiding rail lies between the wheels 6,7.
  • the rolling surface 4,5 of the guiding rail 3 of prior art consists of two planar surfaces at an angle against each other, and the traction surfaces of the wheels 6,7 in contact with these planar surfaces have been given a corresponding angular configuration.
  • Fig. 2 the lineal contact produced in the system of prior art has been sketched with an interrupted line B, this contact being established between a guiding rail 3 and a wheel 6,7 of the kind above described, and giving rise to the problems described in the general part of the disclosure.
  • Fig. 3 depicts an embodiment of the rail transport system of the invention, also comprising a travelling crab 1 with traction motors 2 and a guiding rail 3 affixed to a stationary structure, such as a building, the travelling crab 1 running in support and guidance of said guiding rail, driven by the traction motors 2.
  • From the travelling crab 1 a load or burden can be suspended, which travels with the travelling crab along the transport track defined by the guiding rail 3.
  • the guiding rail 3 presents two rolling surfaces 4,5 facing away from each other and which are located on opposite sides of the guiding rail, facing away from each other.
  • the travelling crab 1 comprises a pair of wheels 6,7, its wheels 6,7 being disposed on opposite sides of the guiding rail to rest against the rolling surfaces 4,5, so that the guiding rail 3 lies between the wheels 6,7.
  • the rolling surface 4,5 of the guiding rail 3 is convexly round.
  • the cross section of the rolling surface of the guiding rail has the shape of a circular arc, i.e., the surface is a cylindrical surface.
  • the wheel 6,7 rolling upon the rolling surface of the rail comprises two conical surfaces 8,9 placed at an angle relative to each other and tapering towards the central part of the wheel so that they constitute a groove.
  • the conical surfaces 8,9 serve as contact surfaces against the convex rolling surface 4,5 of the guiding rail 3.
  • Two punctiform contacts are established between the conical surfaces and the convex rolling surface, symmetrically on either side of the vertical axis of the rail.
  • the rolling surface 4,5 of the guiding rail is convexly round.
  • the wheel 6,7 comprises two convex surfaces 10,11 serving as contact surfaces against the convex rolling surface of the guiding rail. Punctiform contact is established between the two convex surfaces.
  • the rolling surface 4,5 of the guiding rail comprises two planar surfaces 12,13 placed at an angle with reference to each other.
  • the wheel comprises two convex surfaces 14,15, and these are the contact surfaces against the planar surfaces 12,13 of the guiding rail. Punctiform contact is established between the planar surface and the convex surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)

Abstract

Système de transport sur rail comporte un chariot roulant (1), un moteur de traction (2) et un rail de guidage (3) monté sur une structure fixe telle qu'un bâtiment, le chariot (1) étant conçu pour être supporté et guidé par le rail et entraîné par le moteur de traction pour transporter une charge le long du rail de transport, et le rail de guidage (3) comprenant deux surfaces de roulement (4, 5) tournées dans des directions opposées et situées sur des cotés opposés du rail de guidage, tandis que le chariot (1) comprend une paire de roues (6, 7) disposées de part et d'autre du rail de guidage et reposant sur les surfaces de roulement du rail qui se trouve ainsi placé entre les roues. Les configurations respectives des surfaces de roulement (4, 5) et des roues (6, 7) sont telles que leurs contacts soient tangentiels et ponctuels.
PCT/FI1995/000376 1994-06-29 1995-06-29 Systeme de transport sur rail WO1996000674A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27943/95A AU2794395A (en) 1994-06-29 1995-06-29 Track transport system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI943132 1994-06-29
FI943132A FI96193C (fi) 1994-06-29 1994-06-29 Kiskokuljetusjärjestelmä

Publications (1)

Publication Number Publication Date
WO1996000674A1 true WO1996000674A1 (fr) 1996-01-11

Family

ID=8541025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1995/000376 WO1996000674A1 (fr) 1994-06-29 1995-06-29 Systeme de transport sur rail

Country Status (3)

Country Link
AU (1) AU2794395A (fr)
FI (1) FI96193C (fr)
WO (1) WO1996000674A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006028384A2 (fr) * 2004-09-10 2006-03-16 Askim Mek. Verksted As Agencement de rail

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90297C (fr) *
US1747388A (en) * 1928-09-15 1930-02-18 Huebsch Mfg Company Conveyer
GB2078643A (en) * 1980-05-27 1982-01-13 Midland Handling Equipment Ltd Conveyor systems
GB2086329A (en) * 1980-08-02 1982-05-12 Bearing Non Lube Ltd Rollers for tubular guide rails

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE90297C (fr) *
US1747388A (en) * 1928-09-15 1930-02-18 Huebsch Mfg Company Conveyer
GB2078643A (en) * 1980-05-27 1982-01-13 Midland Handling Equipment Ltd Conveyor systems
GB2086329A (en) * 1980-08-02 1982-05-12 Bearing Non Lube Ltd Rollers for tubular guide rails

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006028384A2 (fr) * 2004-09-10 2006-03-16 Askim Mek. Verksted As Agencement de rail
WO2006028384A3 (fr) * 2004-09-10 2006-05-04 Askim Mek Verksted As Agencement de rail
GB2433489A (en) * 2004-09-10 2007-06-27 Askim Mek Verksted As Rail arrangement
GB2433489B (en) * 2004-09-10 2008-10-08 Askim Mek Verksted As Rail arrangement

Also Published As

Publication number Publication date
FI943132A (fi) 1995-12-30
AU2794395A (en) 1996-01-25
FI96193C (fi) 1996-05-27
FI96193B (fi) 1996-02-15
FI943132A0 (fi) 1994-06-29

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