EP0265882A1 - Dispositif de fixation d'une pelle rétro avec un engin de terrassement - Google Patents

Dispositif de fixation d'une pelle rétro avec un engin de terrassement Download PDF

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Publication number
EP0265882A1
EP0265882A1 EP87115651A EP87115651A EP0265882A1 EP 0265882 A1 EP0265882 A1 EP 0265882A1 EP 87115651 A EP87115651 A EP 87115651A EP 87115651 A EP87115651 A EP 87115651A EP 0265882 A1 EP0265882 A1 EP 0265882A1
Authority
EP
European Patent Office
Prior art keywords
guide rail
construction machine
wedge
frame
sliding frame
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.)
Granted
Application number
EP87115651A
Other languages
German (de)
English (en)
Other versions
EP0265882B1 (fr
Inventor
Michael Eugene Kennedy
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.)
Deere and Co
Original Assignee
Deere and Co
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 Deere and Co filed Critical Deere and Co
Publication of EP0265882A1 publication Critical patent/EP0265882A1/fr
Application granted granted Critical
Publication of EP0265882B1 publication Critical patent/EP0265882B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/386—Connections to the frame; Supports for booms or arms the boom being laterally shiftable relative to the frame
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/627—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
    • E02F3/6276—Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor on one side of the frame

Definitions

  • the invention relates to a device for connecting a backhoe to a construction machine or the like, having a cross frame connected to the construction machine, which has upper and lower guide rails extending essentially over the entire width of the construction machine, and a sliding frame connected to the backhoe, the sliding frame is arranged on the guide rails so as to be adjustable transversely to the direction of travel of the construction machine, one guide rail engages over in a hook-like manner, is seated on the horizontal upper side of the other guide rail during transverse displacement and can be locked against transverse displacement via hydraulically actuatable upper and lower cylinders.
  • the sliding frame rests on the horizontal surface of the one guide rail of the transverse frame in all operating conditions and is braced when the cylinders are acted upon by the latter. Since the hook-shaped overlapping part is also braced when the cylinder is loaded with its associated guide rail, unnecessary stresses occur in the sliding frame.
  • the object to be achieved with the invention is seen in designing the device while avoiding unnecessary stresses when the cylinders are acted on in such a way that the sliding frame can be moved relatively easily on the transverse frame.
  • This object has been achieved according to the invention in that a guide rail is provided at its upper end with a wedge surface on which a wedge-shaped counter surface of the slide frame can be adjusted in height by acting on at least one cylinder. In this way the slide frame is adjusted and raised by a small amount when the cylinders are loaded itself from the top of the other guide rail, so that locking against transverse displacement only takes place via the wedge surface and the wedge-shaped counter surface, which result in a secure fit.
  • the wedge surface of the guide rail can expediently run obliquely backwards to the top of the guide rail with respect to the direction of travel of the construction machine, the wedge-shaped counter surface being designed accordingly.
  • the wedge surface is advantageously provided on the upper guide rail, so that the horizontal upper side is inevitably provided on the lower guide rail, as in the prior art which is taken into account in terms of the species.
  • the slide frame is provided with at least one locking rod which is arranged at a short distance below the underside of a guide rail and can be brought against this to the system, whereby a locking rod is provided on a stop plate connected to the slide frame and extending to below the underside of the upper guide rail, to which the locking rod can be detachably connected, extending upwards, which makes installation simple results.
  • FIG. 1 in FIG. 1 denotes a backhoe that can be connected to the rear of a construction machine 11 or the like.
  • the rear excavator 10 consists of a boom 12, an excavator arm 13 and a bucket 14.
  • the excavator arm 13 is pivoted relative to the boom 12 and the bucket 14 relative to the excavator arm 13 via cylinders 15 and 16 which can be acted upon accordingly.
  • a hydraulically actuated cylinder serves to pivot the boom 12, a rotating frame 17 having a vertical pin on a sliding frame 18 being provided in a conventional manner, which serves to rotate the boom 12 about the vertical axis.
  • a cross frame 19 is arranged on the construction machine and consists in detail of end columns 20 and 21 which are connected to one another via an upper cross member 22 and a lower cross member 23.
  • the end columns 20 and 21 are hollow and take up vertically extendable, hydraulically actuated pistons, which are not shown in the drawing, in order to be able to actuate corresponding feet 24 and 25.
  • the slide frame 18 can be adjusted transversely on the upper and lower cross members 22 and 23, which extend substantially over the entire width of the construction machine, and the slide frame 18 together with the rotating frame 17 in each Position on the cross beams can be determined. This is therefore desirable if, for. B. a backhoe in the form of a bucket material near a wall or in a very limited vertical space.
  • the present invention relates essentially to the device for fastening the sliding frame on the cross beams 22 and 23 and to the means which allow the sliding frame 18 to be displaced on the cross beams.
  • the upper cross member 22 is formed from a U-shaped profile support 26 which is open towards the rear.
  • the rear end of the upper leg and the rear end of the lower leg of the profile carrier 26 are welded to a vertical guide rail 27.
  • the vertical end face of the guide rail 27 is located on the backhoe.
  • the lower leg of the profiled support 26 forms a flat horizontal surface 28 which extends over the entire width of the transverse frame.
  • the upper end of the guide rail 27 is provided with a wedge surface 29 which runs obliquely downwards and forwards in the direction of the construction machine.
  • the lower cross member 23 is also provided with a U-shaped profile member 37 which also extends substantially over the entire width of the cross frame.
  • a vertical guide rail 38 which has a horizontal upper side 39, is also welded to the rear ends of the legs of the profile carrier 37.
  • the lower guide rail 38 is also provided with a vertical end face 40 which is located on the backhoe.
  • the cross beams 22 and 23 and in particular the profile beams 26 and 37 are connected to one another at a central point by means of a device 41, which has a forward arm 42, lower pin openings 43 and upper pin openings 44, which serve to connect the entire device 41 and thus the cross frame 19 to the construction machine.
  • the details of the device 41 and the manner in which it is connected to the construction machine are not the subject of the present invention and are therefore not described in detail.
  • the cross frame, as previously described, is connected to the backhoe in a conventional manner.
  • the sliding frame 18 consists of an essentially rectangular device 45 (FIG. 1) which can be connected to the guide rails 27 and 38.
  • the device 45 consists of horizontal support parts 46 and 47, which lie opposite the end faces of the guide rails 27 and 38, and of two vertical parts 48 and 49, which extend between the horizontal support parts 46 and 47 and are connected to the opposite ends of the support parts are.
  • Horizontal arms 50 and 51 which are provided in the bearing housings 52 and 53, extend rearward from the upper horizontal support part 46.
  • a second pair of arms 54 and 55 which also extends backwards and receives bearing housings 56 and 57.
  • Corresponding bearings are provided in the bearing housings 52 and 53, which receive a pin (not shown in the drawing) which extends through an arm of the rotating frame 17 which extends forward.
  • the lower bearing housings 56 and 57 receive corresponding bearings, which also support a pin, which is not shown and which connects a lower arm of the rotating frame 17 to the sliding frame 18.
  • a forward extension of the upper boom 50 extends extends beyond the upper end of the guide rail 27 and is provided with a welded-on wedge piece 60 which comes to lie in front of the wedge surface 29.
  • the wedge piece 60 is equipped with an inclined wedge-shaped counter surface 61 which lies opposite the wedge surface 29 and can be brought into abutment against it.
  • Each stop plate 62 is welded to the vertical parts 48 and 49 and extends to the front in such a way that they come to rest below the upper guide rail 27 or the surface 28 of the profile support 26.
  • a locking rod 63 is arranged, each having an upper horizontal top 64, which come to rest below the surface 28.
  • the vertical distance between the wedge surface 61, the wedge piece 60 and the upper side 64 of the locking rod 63 is somewhat larger than the vertical distance between the wedge surface 29 and the surface 28 of the profile carrier 26.
  • the cantilever 54 is also provided with a forwardly extending extension which extends over the top 29 of the lower guide rail 38.
  • the vertical distance between the surface 28 and the upper side 39 of the guide rail 38 is somewhat larger than the vertical distance between the upper side 64 and a horizontal lower side 65 of the extension of the arm 54.
  • These different vertical distances and the vertical distances as described above in connection with the wedge surface 61, the top 64, the surface 28 and the wedge surface 29 are used to ensure that the sliding frame has some vertical play so that it can be moved vertically.
  • a plate 66 is welded to the underside 65 and extends downward from this just in front of the upper edge of the guide rail 38 and encloses the guide rail 38 between the plate 66 and the front side of the lower support part 47. It is also pointed out that also in vehicle lengthways direction a little play between the cross frame 19 and the sliding frame 18 exists.
  • horizontally extending, hydraulically loadable cylinders 70 are arranged essentially at their corner edges, which have forward-extending brake pistons 71, which can come to bear against the end faces of the guide rails 27 and 38.
  • the brake pistons 71 of the upper cylinders 70 are fully extended, the wedge-shaped counter surface 61 on the wedge piece 60 will move upwards on the wedge surface 29, as a result of which a firm clamping effect is created between these two surfaces.
  • the entire cross frame 18 is also adjusted vertically. When this happens, the horizontal underside 65 on the front extension of the boom 54 will lift vertically from the top 39 of the lower guide rail 38.
  • the sliding frame 18 will lower and the reduction in pressure allows the wedge surface 29 and the counter surface 61 to be displaced relative to one another can be.
  • the front extension of the arm 54 will come to rest on the upper side 39 of the lower guide rail 38, and accordingly there will be only a very slight frictional force between the wedge surface 29 and the counter surface 61. In this state, the entire weight of the backhoe is more or less absorbed by the lower guide rail 38.
  • Sloping surfaces are particularly well suited, in particular, to fix the sliding frame relative to the transverse frame for example when the construction machine drives over uneven ground.
  • the backhoe is held in its position by the wedge effect caused by the cylinders and the inclined surfaces.
  • the inclined surfaces have a disadvantage because it is difficult to move the backhoe or the sliding frame on the inclined surfaces of the cross frame, because the wedge effect counteracts such a displacement. In the present invention, this is avoided by the fact that the wedge action only occurs when the cylinders are extended to fix the slide frame 18 on the guide rails 27 and 38, as shown in Figures 3 and 4.
  • the brake pistons of the cylinders are retracted, as shown in FIG.
  • the weight of the backhoe will be supported on the extension of the arms 54 on the top of the lower guide rail 38.
  • the sliding frame can easily be moved on the lower guide rail or on the cross frame, since the wedge effect has been eliminated due to the inclined surfaces. If the slide frame 18 tilts in a transverse direction, this is limited by the fact that the upper side 64 of the locking rod 63 comes to bear against the surface 28. Otherwise, the upper side 64, which is arranged at a distance from the surface 28 of the upper profile carrier 26 or from the underside of the upper guide rail 27, limits the vertical adjustment. Seen as a whole, a slight lateral displacement of the sliding frame 18 is achieved by the present device, wherein a firm connection of the sliding frame with respect to the transverse frame is also possible in any desired position.
  • An additional advantage of the present invention is seen in the arrangement of the locking bars 63 on the stop plates 62, and this is done by means of cap screws 74, so that the locking bars 63 are removed to attach the slide frame 18 and the backhoe to the cross frame 19 can be.
  • the sliding frame 18 is then raised by means of a block and tackle, brought over the guide rails and let down until the counter surface 61 comes to bear against the wedge surface 29 and the plate 66 is located in front of the lower guide rail 38.
  • the locking rods 63 are screwed onto the stop plates 62 via the cap screws 74.
  • the distance provided between the top 64 of the locking rod 63 and the surface 28 simplifies screwing on the locking rod ends.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
EP87115651A 1986-10-29 1987-10-24 Dispositif de fixation d'une pelle rétro avec un engin de terrassement Expired - Lifetime EP0265882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/925,647 US4741663A (en) 1986-10-29 1986-10-29 Locking and sliding system
US925647 1986-10-29

Publications (2)

Publication Number Publication Date
EP0265882A1 true EP0265882A1 (fr) 1988-05-04
EP0265882B1 EP0265882B1 (fr) 1991-01-23

Family

ID=25452029

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115651A Expired - Lifetime EP0265882B1 (fr) 1986-10-29 1987-10-24 Dispositif de fixation d'une pelle rétro avec un engin de terrassement

Country Status (4)

Country Link
US (1) US4741663A (fr)
EP (1) EP0265882B1 (fr)
CA (1) CA1290286C (fr)
DE (1) DE3767650D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701027A1 (fr) * 1994-09-12 1996-03-13 KARL SCHAEFF GMBH & CO. MASCHINENFABRIK Accessoire de creusement

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4921392A (en) * 1988-05-13 1990-05-01 Clark Equipment Company Sideshift mounted backhoe locking mechanism
US5199344A (en) * 1991-06-11 1993-04-06 Clark Equipment Company Lock cylinder for backhoe slide frame
US5606809A (en) * 1994-07-16 1997-03-04 J. C. Bamford Excavators Limited Mechanical excavators
US6336565B1 (en) * 1998-12-01 2002-01-08 Joseph J. Merkel Articulating truss boom
US20080025830A1 (en) * 2006-07-25 2008-01-31 Pielmeier Kevin E Mounting device for an implement
US7950894B2 (en) * 2006-07-25 2011-05-31 Caterpillar Sarl Adjustable operator interface
FR2935999B1 (fr) * 2008-09-17 2011-10-21 Noremat Bati porte-outil sur lequel est monte un bras portant un outil.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436099A (en) * 1967-11-07 1969-04-01 Case Co J I Locking apparatus for side shiftable excavator
US3614134A (en) * 1969-09-01 1971-10-19 Deere & Co Hydraulic clamping apparatus and pivotal mounting for a side shiftable mechanical digger slide frame
US3680724A (en) * 1968-04-26 1972-08-01 Hans Schaeff Hydraulic clamp for laterally movable mounted dredges
US3788674A (en) * 1972-08-17 1974-01-29 Caterpillar Tractor Co Clamping mechanism for side shiftable backhoe
US4046346A (en) * 1974-11-14 1977-09-06 Mitsubishi Jukogyo Kabushiki Kaisha Slide mechanism having means for fixing movable frames
US4113031A (en) * 1977-07-25 1978-09-12 J. I. Case Company Power shift mechanism for earth working implements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041869A5 (fr) * 1969-04-15 1971-02-05 Deere John Cie Francaise
US3627155A (en) * 1970-04-09 1971-12-14 Deere & Co Hydraulic fluid hose handling means for a side shiftable backhoe
US3741415A (en) * 1972-02-10 1973-06-26 Ford Motor Co Vehicle carrying an implement
JPS534722B2 (fr) * 1973-05-31 1978-02-20
JPS5226311B2 (fr) * 1973-08-24 1977-07-13
US3929239A (en) * 1974-04-25 1975-12-30 Case Co J I Backhoe actuator
GB1560985A (en) * 1975-09-03 1980-02-13 Massey Ferguson Perkins Ltd Clamping devices for backhoes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436099A (en) * 1967-11-07 1969-04-01 Case Co J I Locking apparatus for side shiftable excavator
US3680724A (en) * 1968-04-26 1972-08-01 Hans Schaeff Hydraulic clamp for laterally movable mounted dredges
US3614134A (en) * 1969-09-01 1971-10-19 Deere & Co Hydraulic clamping apparatus and pivotal mounting for a side shiftable mechanical digger slide frame
US3788674A (en) * 1972-08-17 1974-01-29 Caterpillar Tractor Co Clamping mechanism for side shiftable backhoe
US4046346A (en) * 1974-11-14 1977-09-06 Mitsubishi Jukogyo Kabushiki Kaisha Slide mechanism having means for fixing movable frames
US4113031A (en) * 1977-07-25 1978-09-12 J. I. Case Company Power shift mechanism for earth working implements

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0701027A1 (fr) * 1994-09-12 1996-03-13 KARL SCHAEFF GMBH & CO. MASCHINENFABRIK Accessoire de creusement

Also Published As

Publication number Publication date
US4741663A (en) 1988-05-03
CA1290286C (fr) 1991-10-08
EP0265882B1 (fr) 1991-01-23
DE3767650D1 (de) 1991-02-28

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