CN102493507A - Marble holder fork for 8-bar linkage working mechanism - Google Patents
Marble holder fork for 8-bar linkage working mechanism Download PDFInfo
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- CN102493507A CN102493507A CN2011104476757A CN201110447675A CN102493507A CN 102493507 A CN102493507 A CN 102493507A CN 2011104476757 A CN2011104476757 A CN 2011104476757A CN 201110447675 A CN201110447675 A CN 201110447675A CN 102493507 A CN102493507 A CN 102493507A
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- holder fork
- hinged
- swing arm
- marble
- fork
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Abstract
The invention discloses a marble holder fork for an 8-bar linkage working mechanism, and belongs to the field of engineering machinery. The invention overcomes the defect that a marble holder fork cannot load heavy marble stones in the prior art. The technical scheme has the key points that: the marble holder fork for the 8-bar linkage working mechanism comprises a frame, slew cylinders, moving arms, rocker arms, pull rods and a holder fork, wherein the frame is hinged with one ends of the slew cylinders and one ends of the moving arms respectively; the rocker arms are hinged with the other ends of the slew cylinders, the middle sections of the moving arms and one ends of the pull rods; the other ends of the moving arms are hinged with the holder fork; swing arms and connecting rods are arranged; two ends of the swing arms are respectively hinged with the pull rods and the moving arms; and two ends of the connecting rods are respectively hinged with the pull rods and the holder fork. The marble holder fork is mainly applied to transferring and carrying stones in stone mining plants, and has the advantages of flexible structure and capacity of loading heavy stones.
Description
Technical field
The invention belongs to a kind of operating mechanism on the engineering machinery wheel loader, specifically, relate in particular to a kind of eight-bar linkage marble holder fork that just changeing.
Background technology
The equipment of using on the present big-and-middle-sized loader all is the counter-rotating six bar mechanism; This mechanism is under the situation of national standard required standard length swing arm and dress scraper bowl; Can obtain more satisfactory performance through optimal design, as: digging force, scraper bowl translation property, discharging property, moved arm lifting power or the like.But this mechanism is used to adorn marble holder fork and a lot of defectives just occurs, and present marble exploitation is that the blank marble blocks of being exploited is increasing, monolithic weight just a lot of greater than 20 tons; To big like this marble blocks be loaded onto lorry by routine; Owing to receive hoisting power and tumble load limit, must could accomplish greater than 12 tons loader with rated load, and the large-tonnage loader still leans on import at present; Price is too high, and the user can not accept.Also there is following defective in the counter-rotating six bar mechanism: when 1, the fork dress was packed up than ratchel, rocking arm was run into stone easily; 2, the power transmission of mechanism for obtaining suitable commentaries on classics fork digging force, must be used the overturning oil cylinder of big cylinder diameter than little, and because of the efficient of power transmission is low, what each scantling need be done could satisfy requirement of strength more greatly; 3, because existing, the counter-rotating six bar mechanism changes the fork power transmission than the characteristics that quick decay is arranged along with the increase of turning over angle behind the holder fork; Though therefore used the angling cylinder of big cylinder diameter; But when sticking stone; Holder fork is packed up very low-angle and is just received motionlessly, and the material center of gravity can and not moved gradually with the increase of receiving the fork angle like this, be unfavorable for the swing arm lifting; 4, the six-bar mechanism working range is limited, has limited the piecemeal activity of loader; If 5, in addition the designer designs and badly also can occur having pitched stone when the holder fork at ground location and do not receive fork and just promote swing arm, the situation of automatic discharging also possibly appear, if the front has people and important item will produce great risk in the lifting process.
Summary of the invention
The purpose of this invention is to provide a kind of eight-bar linkage marble holder fork that just changeing, marble holder fork is difficult to accomplish the defective that fork is adorned heavy weight marble stone task in the prior art to overcome.
The present invention adopts following technical scheme to realize: a kind of eight-bar linkage marble holder fork that just changeing comprises frame, angling cylinder, swing arm, rocking arm, pull bar and holder fork, wherein; Frame is hinged with angling cylinder, swing arm one end respectively; rocking arm is hinged with the angling cylinder other end, swing arm stage casing, pull bar one end respectively, and the other end of swing arm is hinged with the holder fork, is provided with swing arm, connecting rod; the two ends of swing arm are hinged with pull bar, swing arm respectively, and the two ends of connecting rod are hinged with pull bar, holder fork respectively.
Said angling cylinder, rocking arm, pull bar, swing arm, connecting rod are respectively equipped with two, and symmetry is connected between frame and the holder fork.
Compared with prior art, the invention has the beneficial effects as follows:
(1) structure design is more reasonable, and it is less that corresponding rod member size can be done, and the work sight line is better;
(2) translation property is fine, does not have the situation of automatic discharging in the lifting process;
(3) power transmission is bigger than very, and the angling cylinder of less cylinder diameter just can satisfy instructions for use, does not have the motionless situation of receiving;
(4) working range of eight-bar linkage is bigger, and operation is more flexible.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a vertical view of the present invention;
Fig. 3 is the perspective view of swing arm of the present invention.
Among the figure: 1, frame; 2, angling cylinder; 3, swing arm; 4, rocking arm; 5, pull bar; 6, swing arm; 7, connecting rod; 8, holder fork; 9, swing arm plate; 10, swing arm crossbeam, 11, rocker arm support.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Among Fig. 1, a kind of eight-bar linkage marble holder fork that just changeing comprises frame 1; Be hinged with swing arm 3 and angling cylinder 2 on the frame 1, swing arm 3 is provided with rocker arm support 11, and rocker arm support 11 is hinged with the Rocker arm 4 stage casing; the Rocker arm 4 upper end is hinged with pull bar 5 one ends; the Rocker arm 4 lower end and angling cylinder 2 other ends are hinged, and 8 times articulated slabs of swing arm 3 front ends and holder fork are hinged, and an end of articulated slab and connecting rod 7 is hinged on the holder fork 8; The present invention is provided with swing arm 6 and connecting rod 7, and an end of swing arm 6 and connecting rod 7 is hinged with pull bar 5 other ends respectively; The other end of swing arm 6 and swing arm plate 9 lower ends are hinged, and the other end of connecting rod 7 is hinged on the last articulated slab of holder fork 8.The eight-bar linkage that frame of the present invention 1, angling cylinder 2, swing arm 3, Rocker arm 4, pull bar 5, swing arm 6, connecting rod 7, holder fork 8 common compositions are just changeing; Eight-bar linkage relatively and six bar mechanism exist working range more greatly, advantage more flexibly, so the present invention has adopted eight-bar linkage; The gyratory directions of Rocker arm 4 was the same with the gyratory directions of holder fork 8 when the characteristics of just changeing eight-bar linkage were action; The power transmission of this kind structure is bigger than very; The angling cylinder 2 of less cylinder diameter just can satisfy instructions for use; Simultaneously because the gyratory directions of Rocker arm 4 is towards the loader car body when forking stone, so Rocker arm 4 can not run into building stones.
Among Fig. 2; Angling cylinder of the present invention 2, Rocker arm 4, pull bar 5, swing arm 6, connecting rod 7 have two respectively; They are connected respectively with frame 1, swing arm 3 and holder fork 8, two eight-bar linkages that mutual group is symmetrically distributed, and this kind structure is the better two rocker structures of a kind of stressing conditions, sight line.
Among Fig. 3, in the swing arm 3, swing arm 3 is provided with 2 swing arm plates 9, and the two ends of swing arm plate 9 are respectively equipped with hinge hole, are provided with swing arm crossbeam 10 between 2 swing arm plates 9, and swing arm crossbeam 10 is provided with 2 rocker arm supports 11, and rocker arm support 11 two ends also are respectively equipped with hinge hole.The present invention adopts the structure of two rocking arms, can be arranged in the position near swing arm plate 9, and stressing conditions is more reasonable, and it is less that corresponding rod member size can be done, and the work sight line is better.
Operating principle of the present invention is: during use, the present invention is installed on the loader, loader is pitched dress, is promoted operation the marble stone through this mechanism.What the present invention adopted is eight-bar linkage, the relative six bar mechanism of eight-bar linkage, and working range is bigger, operation is more flexible; Again because connection is just being changeed in employing; Therefore pack up in the angular range at the holder fork 8 that requires, the increase power transmission of packing up angle can be pitched dress than ratchel than what still increase gradually; The translation property of pitching simultaneously in the process of assembling is also fine, does not have the situation of automatic discharging in the lifting process; The present invention also adopts reasonable structural design, makes the driver obtain good operation sight line more.Therefore, the present invention has realized having the driver purpose of the big marble stone of works fine sight line situation lower fork dress.
Claims (2)
1. one kind is just being changeed eight-bar linkage marble holder fork; Comprise frame (1), angling cylinder (2), swing arm (3), rocking arm (4), pull bar (5) and holder fork (8); Wherein, frame (1) respectively and angling cylinder (2), swing arm (3) one ends hinged, rocking arm (4) respectively and angling cylinder (2) other end, swing arm (3) stage casing, pull bar (5) one ends hinged; The other end of swing arm (3) is hinged with holder fork (8); It is characterized in that: be provided with swing arm (6) and connecting rod (7), the two ends of swing arm (6) respectively and pull bar (5), swing arm (3) hinged, the two ends of connecting rod (7) respectively and pull bar (5), holder fork (8) hinged.
2. the eight-bar linkage marble holder fork that just changeing according to claim 1, it is characterized in that: said angling cylinder (2), rocking arm (4), pull bar (5), swing arm (6), connecting rod (7) are respectively equipped with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104476757A CN102493507A (en) | 2011-12-28 | 2011-12-28 | Marble holder fork for 8-bar linkage working mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104476757A CN102493507A (en) | 2011-12-28 | 2011-12-28 | Marble holder fork for 8-bar linkage working mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102493507A true CN102493507A (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104476757A Pending CN102493507A (en) | 2011-12-28 | 2011-12-28 | Marble holder fork for 8-bar linkage working mechanism |
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| CN (1) | CN102493507A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642159A (en) * | 1970-08-19 | 1972-02-15 | Massey Ferguson Inc | Earthworking vehicle |
| GB2102382A (en) * | 1981-06-09 | 1983-02-02 | Fiat Allis Europ | Linkage system for a loader vehicle |
| US4947705A (en) * | 1989-05-12 | 1990-08-14 | Ingersoll-Rand Company | Method and apparatus for maintaining a load raising linkage in a rasied position |
| JPH08199619A (en) * | 1994-10-07 | 1996-08-06 | Caterpillar Inc | Lift arm-link mechanism of bucket |
| WO1999035344A1 (en) * | 1998-01-05 | 1999-07-15 | O & K Orenstein & Koppel Aktiengesellschaft | Mobile loading machine with front loading equipment |
| CN2559619Y (en) * | 2002-08-20 | 2003-07-09 | 徐州装载机厂 | Corotation eight link working mechanism for loader |
| CN202492867U (en) * | 2011-12-28 | 2012-10-17 | 山东临工工程机械有限公司 | Marble holding fork for forward 8-bar linkage mechanism |
-
2011
- 2011-12-28 CN CN2011104476757A patent/CN102493507A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3642159A (en) * | 1970-08-19 | 1972-02-15 | Massey Ferguson Inc | Earthworking vehicle |
| GB2102382A (en) * | 1981-06-09 | 1983-02-02 | Fiat Allis Europ | Linkage system for a loader vehicle |
| US4947705A (en) * | 1989-05-12 | 1990-08-14 | Ingersoll-Rand Company | Method and apparatus for maintaining a load raising linkage in a rasied position |
| JPH08199619A (en) * | 1994-10-07 | 1996-08-06 | Caterpillar Inc | Lift arm-link mechanism of bucket |
| WO1999035344A1 (en) * | 1998-01-05 | 1999-07-15 | O & K Orenstein & Koppel Aktiengesellschaft | Mobile loading machine with front loading equipment |
| CN2559619Y (en) * | 2002-08-20 | 2003-07-09 | 徐州装载机厂 | Corotation eight link working mechanism for loader |
| CN202492867U (en) * | 2011-12-28 | 2012-10-17 | 山东临工工程机械有限公司 | Marble holding fork for forward 8-bar linkage mechanism |
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Application publication date: 20120613 |