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WO1994010023A1 - Bogie comprising at least two pairs of wheels, especially for off-road loaders - Google Patents

Bogie comprising at least two pairs of wheels, especially for off-road loaders Download PDF

Info

Publication number
WO1994010023A1
WO1994010023A1 PCT/SE1993/000917 SE9300917W WO9410023A1 WO 1994010023 A1 WO1994010023 A1 WO 1994010023A1 SE 9300917 W SE9300917 W SE 9300917W WO 9410023 A1 WO9410023 A1 WO 9410023A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheel pairs
bogie
shaft
right angles
extends
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/SE1993/000917
Other languages
French (fr)
Inventor
Kjell Holmstrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1994010023A1 publication Critical patent/WO1994010023A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/10—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with more than four wheels

Definitions

  • the present invention relates to a bogie comprising at least two pairs of wheels and intended for off-road loaders.
  • Machines which are fitted with a plurality of wheels and intended for work in more or less difficult ter ⁇ rain, for instance forest clearing work, transporta- tion of timber etc., are known to the art. For reasons of economy, there is a tendency to produce these machines in progressively larger dimensions with the result that they become progressively more energy demanding in operation.
  • One result of this development is reflected in the increase in wear and tear on the machine carrying surface (forest ground) and the ma ⁇ chines themselves, and there is now a demand for technical improvements that will reduce these draw ⁇ backs for environmental and economical reasons.
  • the object of the present invention is to provide for machines and loaders that are intended particularly for off-road work bogies which are so constructed as to considerably reduce these drawbacks.
  • a bogie constructed in accordance with the invention comprises at least two pairs of wheels where each wheel pair is pivotal or tiltable on a shaft which extends at right angles to the wheel axles (horizontal on flat ground) and the two wheel pairs are together rotatable about a further shaft which extends at right angles to the first-mentioned shaft.
  • a bogie of this construc ⁇ tion can be used as a basic unit for the construction of more complex bogeys which together include 4, 8, 12, 16, 32 wheel pairs and so on, which are so con- structed and arranged that each unit will function independently with maximum adaptation to the underly ⁇ ing driving surface, which results in minimum puncti- form loading (the pressure is distributed evenly on the ground) and minimum energy consumption, i.e. the wear and tear on the driving surface is reduced, terrain accessibility is improved and the useful life of the machines is extended.
  • Figure 1 illustrates a bogie having two pairs of wheels and adapted for barrow-type loaders
  • Figure 2 illustrates a bogie having four pairs of wheels
  • Figure 3 illustrates a bogie having eight pairs of wheels
  • Figure 4 illustrates a loader and a power unit, each having eight pairs of wheels
  • Figure 5 illustrates from above a loader having twelve pairs of wheels
  • Figure 6 is a side view of the loader illustrated in Figure 5.
  • the bogie illustrated in Figure 1 comprises two wheel pairs 11 and 12 of which two wheels 11 are mounted on a common axle ill and two wheels 12 are mounted on a common axle 121 (one wheel of each pair being hidden behind the visible wheel).
  • Each wheel is mounted for pivotal movement on a respective shaft 13 which extends at right angles to the respective wheel axles 111 and 121.
  • the total angle of pivot of each wheel pair from one extremity (SW-NE) to the opposite extremity (SE-NW) is about 30°.
  • the two wheel pairs 11 and 12 are together mounted for rotation on a second shaft 14 which extends at right angles to the shaft 13.
  • a mechanical bearing block mounted underneath the barrow 10 is a mechanical bearing block which is common to the shafts 13 and 14.
  • the wheels When the barrow is driven conventionally in rough terrain, the wheels will adjust to the surface condi ⁇ tions of the terrain and enable the barrow to be driven across ground which would be inaccessible to conventional barrows.
  • the bogie illustrated in Figure 2 includes two mutual ⁇ ly identical units, each having two wheel pairs 21, 22 and 21'', 22' respectively.
  • Each of the wheel pairs 21, 22 is mounted forindividual pivot or tiltable movement on a shaft 23, while each of the wheel pairs 21 and 22' is mounted for individual pivotal or tiltable movement on a shaft 23', with the total pivotal angle of each wheel pair reaching to about 30°.
  • the wheel pairs 21, 22 and 21', 22' are mounted individually for rotation about a shaft 24 which is fitted mechanically to the underside of the loader.
  • the loader is intended for connection to a power unit.
  • the bogie illustrated in Figure 3 comprises two mutu ⁇ ally identical units, each having four wheel pairs 31, 32, 31', 32' and 33, 34, 33', 34' respectively with each wheel pair mounted individually for pivotal movement on a shaft 35, 35', 37, 37' which extends at right angles to the axle direction of respective wheel pairs, with the total pivot or tilt angle reaching to about 30°.
  • the wheel pairs are mounted for rotation, two and two, about a second shaft 36 and 38 respec ⁇ tively, extending at right angles to the first- mentioned shaft 35, 35' and 37, 37' respectively.
  • the shafts 36, 38 are mounted mechanically on the under ⁇ side of a loader.
  • the loader is intended for connec ⁇ tion to a power unit.
  • FIG 4 illustrates a bogie which comprises two sub- bogeys, namely a sub-bogie 400 which is fitted to a power unit and a sub-bogie 410 fitted to a loader 40.
  • Each sub-bogie has eight wheel pairs, similar to the Figure 3 illustration, wherein each wheel pair is mounted for pivotal or tilting movement on a shaft (parallel to the plane of the paper) and the wheel pairs are mounted for rotation, two and two, about shafts (right angles to the plane of the paper) which extend at right angles to the first-mentioned shaft.
  • the two units 40 and 41 are pivotal relative to one another about an axis y-y (in the plane of the paper) at right angles to the axle directions of respective wheel pairs, partly about an axis x-x (at right angles to the plane of the paper) parallel with the axle directions of respective wheel pairs.
  • the pivotal movement between said units is such that an angle between the longitudinal directions 401 and 411 of the upper sides of respective bogeys 40, 41 will always be > 180°.
  • Figures 5-6 illustrate a loader which has twelve wheel pairs with six wheel pairs on a respective side assembly 51 and 52, which are, in turn, movably mount ⁇ ed to a central unit 50 which carries the actual loading device.
  • the central unit is provided on one end thereof, to the right of the Figures, with power unit attachment means 501.
  • the wheel pairs have the same construction as those wheel pairs earlier described.
  • the side units 51, 52 are self-adjustable (autopivotal) so as to adapt to the nature of the ground independently of one another.
  • the invention is not limited to the basic exemplifying embodiments.
  • the system can be extended to include larger and larger units, wherein the number of wheels provided shall be divisible by four.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Shovels (AREA)

Abstract

A bogie comprises two wheel pairs (11, 12). Each wheel pair is mounted for pivotal or tiltable movement on a shaft (13) which extends at right angles to the axle direction (111, 121) of respective wheel pairs, with a total pivot angle of about 30°. The wheel pairs together are mounted for rotation on a second shaft (14) which extends at right angles to the first-mentioned shaft (13). A combined bogie includes two sub-bogeys (400, 410), each of which comprises two mutally identical units each having two (21, 22; 21', 22') or four (31, 32, 31', 32'; 33, 34, 33', 34') wheel pairs. One sub-bogie (400) is fitted to a power unit (40) and one sub-bogie (410) is fitted to a loader (41). The power unit and the loader are pivotal in relation to one another about an axis (y-y) which extends at right angles to the axle directions of respective wheel pairs, and also about an axis (x-x) which extends parallel to the axle directions of the respective wheel pairs. The angle (α) between longitudinal directions (401, 411) on the upper sides of respective sub-bogeys is always » 180°.

Description

BOGIE COMPRISING AT LEAST TWO PAIRS OF WHEELS, ESPECIALLY FOR OFF-ROAD LOADERS
TECHNICAL FIELD
The present invention relates to a bogie comprising at least two pairs of wheels and intended for off-road loaders.
BACKGROUND ART
Machines which are fitted with a plurality of wheels and intended for work in more or less difficult ter¬ rain, for instance forest clearing work, transporta- tion of timber etc., are known to the art. For reasons of economy, there is a tendency to produce these machines in progressively larger dimensions with the result that they become progressively more energy demanding in operation. One result of this development is reflected in the increase in wear and tear on the machine carrying surface (forest ground) and the ma¬ chines themselves, and there is now a demand for technical improvements that will reduce these draw¬ backs for environmental and economical reasons.
The object of the present invention is to provide for machines and loaders that are intended particularly for off-road work bogies which are so constructed as to considerably reduce these drawbacks.
DISCLOSURE OF THE INVENTION
A bogie constructed in accordance with the invention comprises at least two pairs of wheels where each wheel pair is pivotal or tiltable on a shaft which extends at right angles to the wheel axles (horizontal on flat ground) and the two wheel pairs are together rotatable about a further shaft which extends at right angles to the first-mentioned shaft. A bogie of this construc¬ tion can be used as a basic unit for the construction of more complex bogeys which together include 4, 8, 12, 16, 32 wheel pairs and so on, which are so con- structed and arranged that each unit will function independently with maximum adaptation to the underly¬ ing driving surface, which results in minimum puncti- form loading (the pressure is distributed evenly on the ground) and minimum energy consumption, i.e. the wear and tear on the driving surface is reduced, terrain accessibility is improved and the useful life of the machines is extended.
The characteristic features of different types of bogie are set forth in the following Claims.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described in more detail with reference to the accompanying drawings, in which Figure 1 illustrates a bogie having two pairs of wheels and adapted for barrow-type loaders; Figure 2 illustrates a bogie having four pairs of wheels; Figure 3 illustrates a bogie having eight pairs of wheels; Figure 4 illustrates a loader and a power unit, each having eight pairs of wheels; Figure 5 illustrates from above a loader having twelve pairs of wheels; and
Figure 6 is a side view of the loader illustrated in Figure 5.
DESCRIPTION OF PREFERRED EMBODIMENTS
The bogie illustrated in Figure 1 comprises two wheel pairs 11 and 12 of which two wheels 11 are mounted on a common axle ill and two wheels 12 are mounted on a common axle 121 (one wheel of each pair being hidden behind the visible wheel). Each wheel is mounted for pivotal movement on a respective shaft 13 which extends at right angles to the respective wheel axles 111 and 121. The total angle of pivot of each wheel pair from one extremity (SW-NE) to the opposite extremity (SE-NW) is about 30°.
The two wheel pairs 11 and 12 are together mounted for rotation on a second shaft 14 which extends at right angles to the shaft 13. Mounted underneath the barrow 10 is a mechanical bearing block which is common to the shafts 13 and 14.
When the barrow is driven conventionally in rough terrain, the wheels will adjust to the surface condi¬ tions of the terrain and enable the barrow to be driven across ground which would be inaccessible to conventional barrows.
The bogie illustrated in Figure 2 includes two mutual¬ ly identical units, each having two wheel pairs 21, 22 and 21'', 22' respectively.
Each of the wheel pairs 21, 22 is mounted forindividual pivot or tiltable movement on a shaft 23, while each of the wheel pairs 21 and 22' is mounted for individual pivotal or tiltable movement on a shaft 23', with the total pivotal angle of each wheel pair reaching to about 30°. The wheel pairs 21, 22 and 21', 22' are mounted individually for rotation about a shaft 24 which is fitted mechanically to the underside of the loader. The loader is intended for connection to a power unit.
The bogie illustrated in Figure 3 comprises two mutu¬ ally identical units, each having four wheel pairs 31, 32, 31', 32' and 33, 34, 33', 34' respectively with each wheel pair mounted individually for pivotal movement on a shaft 35, 35', 37, 37' which extends at right angles to the axle direction of respective wheel pairs, with the total pivot or tilt angle reaching to about 30°. The wheel pairs are mounted for rotation, two and two, about a second shaft 36 and 38 respec¬ tively, extending at right angles to the first- mentioned shaft 35, 35' and 37, 37' respectively. The shafts 36, 38 are mounted mechanically on the under¬ side of a loader. The loader is intended for connec¬ tion to a power unit.
Figure 4 illustrates a bogie which comprises two sub- bogeys, namely a sub-bogie 400 which is fitted to a power unit and a sub-bogie 410 fitted to a loader 40.. Each sub-bogie has eight wheel pairs, similar to the Figure 3 illustration, wherein each wheel pair is mounted for pivotal or tilting movement on a shaft (parallel to the plane of the paper) and the wheel pairs are mounted for rotation, two and two, about shafts (right angles to the plane of the paper) which extend at right angles to the first-mentioned shaft.
The two units 40 and 41 are pivotal relative to one another about an axis y-y (in the plane of the paper) at right angles to the axle directions of respective wheel pairs, partly about an axis x-x (at right angles to the plane of the paper) parallel with the axle directions of respective wheel pairs. In this regard, the pivotal movement between said units is such that an angle between the longitudinal directions 401 and 411 of the upper sides of respective bogeys 40, 41 will always be > 180°.
Figures 5-6 illustrate a loader which has twelve wheel pairs with six wheel pairs on a respective side assembly 51 and 52, which are, in turn, movably mount¬ ed to a central unit 50 which carries the actual loading device. The central unit is provided on one end thereof, to the right of the Figures, with power unit attachment means 501. The wheel pairs have the same construction as those wheel pairs earlier described. The side units 51, 52 are self-adjustable (autopivotal) so as to adapt to the nature of the ground independently of one another.
The invention is not limited to the basic exemplifying embodiments. The system can be extended to include larger and larger units, wherein the number of wheels provided shall be divisible by four.

Claims

1. A bogie comprising two wheel pairs (11, 12), especially for off-road loaders, characterized in that each wheel pair (11, 12) is mounted for pivotal move¬ ment on a shaft (13) which extends at right angles to the axle direction (111, 121) of respective wheel pairs, wherein the total pivot angle reaches to about 30°; and in that the two wheel pairs (11, 12) are together mounted for rotation on a second shaft (14) which extends at right angles to the first-mentioned shaft (13).
2. A bogie according to Claim 1, characterized in that it includes two mutually identical units, each having two wheel pairs (21, 22; 21', 22') which are mounted for pivotal movement on a shaft (23, 23') which extends at right angles to the axle direction of respective wheel pairs, with a total pivot angle of about 30°, and are together mounted for rotation on a second shaft (24) which extends at right angles to the first-mentioned shaft (23, 23#).
3. A bogie according to Claim 2, characterized in that it includes two mutually identical units, each having four wheel pairs (31, 32, 31', 32"; 33, 34, 33', 34') which are mounted for pivotal movement on a shaft (35, 35'; 37, 37') which extends at right angles to the axle direction of respective wheel pairs with a total pivot angle of about 30°; and in that the wheel pairs are mounted for rotation two and two together about a second shaft (36; 38) which extends at right angles to the first-mentioned shaft (35, 35'; 37, 37') .
4. A bogie comprised of two sub-bogeys according to Claim 2 or Claim 3, characterized in that one sub- bogie (400) is fitted to a power unit (40) and one sub-bogie (410) is fitted to a loader (41); and in that the power unit (40) and the loader (41) are pivotal in relation to one another about an axis (y-y) extending at right angles to the axle directions of respective wheel pairs, and about an axis (x-x) which extends parallel to the axle directions of respective wheel pairs; and in that the angle ( a ) between longi¬ tudinal directions (401, 411) on the upper sides (401, 410) of respective bogeys (400, 410) is always" 180°.
PCT/SE1993/000917 1992-11-05 1993-11-03 Bogie comprising at least two pairs of wheels, especially for off-road loaders Ceased WO1994010023A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203309A SE9203309L (en) 1992-11-05 1992-11-05 Bogie comprising at least two pairs of wheels and intended specifically for off-road cargo unit
SE9203309-1 1992-11-05

Publications (1)

Publication Number Publication Date
WO1994010023A1 true WO1994010023A1 (en) 1994-05-11

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Family Applications (1)

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PCT/SE1993/000917 Ceased WO1994010023A1 (en) 1992-11-05 1993-11-03 Bogie comprising at least two pairs of wheels, especially for off-road loaders

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010274A1 (en) * 2004-07-29 2006-02-02 Clare Kirkland Apparatus for mounting wheels to a vehicle body
WO2016034698A1 (en) * 2014-09-04 2016-03-10 Agence Nationale Pour La Gestion Des Déchets Radioactifs Railway vehicle and funicular apparatus
FR3025477A1 (en) * 2014-09-04 2016-03-11 Andra RAILWAY VEHICLE AND INSTALLATION OF FUNICULAR
CN113453930A (en) * 2019-02-12 2021-09-28 索尤若驱动有限及两合公司 Mobile device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053447A (en) * 1933-08-15 1936-09-08 William D Sargent Vehicle attachment
US2213473A (en) * 1937-10-05 1940-09-03 Theodore A Peterman Multiple wheel vehicle drive
US2295085A (en) * 1941-09-08 1942-09-08 Warner L Keehn Land vehicle
DE874405C (en) * 1951-03-01 1953-04-23 Bergische Achsen Kotz Soehne Motor vehicle or motor vehicle trailer with swing axles
GB1499910A (en) * 1974-03-14 1978-02-01 Linkoepings Transportind Undercarriages for semi-trailers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053447A (en) * 1933-08-15 1936-09-08 William D Sargent Vehicle attachment
US2213473A (en) * 1937-10-05 1940-09-03 Theodore A Peterman Multiple wheel vehicle drive
US2295085A (en) * 1941-09-08 1942-09-08 Warner L Keehn Land vehicle
DE874405C (en) * 1951-03-01 1953-04-23 Bergische Achsen Kotz Soehne Motor vehicle or motor vehicle trailer with swing axles
GB1499910A (en) * 1974-03-14 1978-02-01 Linkoepings Transportind Undercarriages for semi-trailers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006010274A1 (en) * 2004-07-29 2006-02-02 Clare Kirkland Apparatus for mounting wheels to a vehicle body
WO2016034698A1 (en) * 2014-09-04 2016-03-10 Agence Nationale Pour La Gestion Des Déchets Radioactifs Railway vehicle and funicular apparatus
WO2016034701A1 (en) * 2014-09-04 2016-03-10 Agence Nationale Pour La Gestion Des Déchets Radioactifs Railway vehicle and funicular apparatus
FR3025477A1 (en) * 2014-09-04 2016-03-11 Andra RAILWAY VEHICLE AND INSTALLATION OF FUNICULAR
AU2015310839B2 (en) * 2014-09-04 2019-05-02 Agence Nationale Pour La Gestion Des Dechets Radioactifs Funicular driven by a cable with two towing sections and method for controlling such a funicular
US10435043B2 (en) 2014-09-04 2019-10-08 Agence Nationale Pour La Gestion Des Déchets Radioactifs Funicular driven by a cable with two towing sections and method for controlling such a funicular
US10449977B2 (en) 2014-09-04 2019-10-22 Agence Nationale Pour La Gestion Des Déchets Radioactifs Railway vehicle and funicular apparatus
US10449978B2 (en) 2014-09-04 2019-10-22 Agence Nationale Pour La Gestion Des Déchets Radioactifs Railway vehicle and funicular apparatus
CN113453930A (en) * 2019-02-12 2021-09-28 索尤若驱动有限及两合公司 Mobile device
CN113453930B (en) * 2019-02-12 2024-05-28 索尤若驱动有限及两合公司 Mobile device

Also Published As

Publication number Publication date
SE9203309D0 (en) 1992-11-05
SE9203309L (en) 1994-05-06

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