CN102373721B

CN102373721B - Marble supporting fork

Info

Publication number: CN102373721B
Application number: CN 201110353393
Authority: CN
Inventors: 支开印; 吉孟福; 迟峰; 王永; 王志强; 贾瑞宽; 杨吉林
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2011-11-10
Filing date: 2011-11-10
Publication date: 2013-07-31
Anticipated expiration: 2031-11-10
Also published as: CN102373721A

Abstract

The invention discloses a marble supporting fork, belonging to the field of engineering machinery and overcoming the defect that the marble supporting fork in the prior art cannot be used for completing forking and assembling of a high-weight stone. The technical scheme disclosed by the invention has the key points that the marble supporting fork comprises a rack which forms a corotation six-connecting-rod mechanism, and a rotary oil cylinder, a movable arm, rocker arms and a supporting fork, wherein two movable arm plates are arranged on the movable arm, a movable arm beam is arranged between two movable arm plates, two rocker arm support plates are arranged on the movable arm beam, the rocker arms and the rotary oil cylinder are hinged on the rocker arm support plates, the rocker arms and connecting rods are respectively two, the corotation six-connecting-rod mechanism is a dual rocker arm structure with the same stress conditions at both sides, a gantry cross plate is arranged on the supporting fork, and a connecting rod support plate is arranged on top of the gantry cross plate; and the other end of the connecting rod is hinged with the corresponding connecting rod support plate on the corresponding supporting fork. The marble supporting fork disclosed by the invention is mainly applied to the engineering machinery manufacturing industry.

Description

Marble holder fork

Technical field

The invention belongs to the operating mechanism on a kind of engineering machinery wheel loader, specifically, relate in particular to a kind of marble holder fork.

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 by optimal design, as: digging force, scraper bowl translation, discharging, moved arm lifting power or the like.But this mechanism is used to adorn marble holder fork and a lot of defectives just occurs, present marble exploitation field is for economic benefit, the blank marble blocks of being exploited is increasing, monolithic weight just a lot of greater than 20 tons will load onto lorry with big like this marble blocks, routinely owing to be subjected to hoisting power and the load limit of tumbling, must just can finish greater than 12 tons loader with rated load, and the large-tonnage loader still leans on import at present, and price is too high, and the user can not accept.Early stage, we carried out some improvement to prior art, on 5 tons of counter-rotating six bar mechanism loaders, adopt swing arm is shortened, move after making the material center of gravity, and the method for the cylinder diameter of increase swing arm lift cylinder, 22 tons marble blocks can be risen to 1.7 meters high, can be used for loading truck, but there is following defective: 1, be that swing arm has shortened; rocking arm will move on to above the front driving axle; the needs of each position, rocking arm must extend, and the swing arm crossbeam position of supporting rocking arm like this also will uprise; so crossbeam just blocked the operating position of front pallet fork tooth entirely, and the driver can only be by rule of thumb during operation; 2, be that stone bumps rocking arm when the fork dress is packed up than finger stone; 3, for pursuing the translation of holder fork, the power transmission of mechanism is than very little, for obtaining suitable commentaries on classics fork digging force, must be with the overturning oil cylinder of big cylinder diameter, and because of the efficient of power transmission is low, each scantling need be done could satisfy requirement of strength more greatly; 4, be to change the fork power transmission than the characteristics that quick decay is arranged along with the increase of turning over angle behind the holder fork because the counter-rotating six bar mechanism exists, though therefore used the angling cylinder of two big cylinder diameters, but when sticking stone, holder fork is packed up very low-angle and is just received motionless, the material center of gravity can not moved gradually with the increase of receiving the fork angle like this, is unfavorable for that swing arm promotes.If the designer designs and badly also can occur having pitched stone when holder fork at ground location and do not receive fork and just promote swing arm in addition, the situation of automatic discharging also may 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 marble holder fork, marble holder fork is difficult to finish the defective that fork is adorned heavy weight marble stone task in the prior art to overcome.

The present invention realizes by the following technical solutions: a kind of marble holder fork, comprise frame, one or more than one angling cylinder, swing arm; rocking arm; holder fork; described swing arm and angling cylinder are hinged on the frame respectively; rocking arm arm body stage casing is hinged on the swing arm; the rocking arm upper end is hinged with connecting rod; the rocking arm lower end is hinged on the angling cylinder other end; described frame; angling cylinder; swing arm; rocking arm; connecting rod; the holder fork is formed one is just being changeed six bar mechanism; described swing arm is provided with two swing arm plates; be provided with the swing arm crossbeam between two swing arm plates; the swing arm crossbeam is provided with two rocker arm support plates; hinged rocking arm on the described rocker arm support plate; described angling cylinder; rocking arm; connecting rod is respectively equipped with two; the described six bar mechanism that just changeing is the identical two rocker structures of a kind of both sides stressing conditions; described holder is stuck and is provided with the door frame transverse slat, and door frame transverse slat top is provided with the connecting rod support plate, and the connecting rod other end is hinged with the connecting rod support plate that holder is stuck.

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 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.

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 partial enlarged drawing I of Fig. 2;

Fig. 4 is the perspective view of swing arm of the present invention;

Fig. 5 is the perspective view of holder fork of the present invention.

Among the figure: 1, frame; 2, angling cylinder; 3, swing arm; 4, rocking arm; 5, connecting rod; 6, holder fork; 7, swing arm crossbeam; 8, swing arm plate; 9, rocker arm support plate; 10, rocking arm supported hole; 11, connecting rod support plate; 12, door frame transverse slat.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.

In Fig. 1, a kind of marble holder fork, swing arm 3 and angling cylinder 2 are hinged on respectively on the frame 1; Rocker arm 4 is hinged on swing arm 3 by on the middle arm body; the Rocker arm 4 upper end is hinged with connecting rod 5 one ends; the Rocker arm 4 lower end and angling cylinder 2 other ends are hinged, and swing arm 3 front ends and 6 times hinge holes of marble holder fork are hinged, and the other end of hinge hole and connecting rod 5 is hinged on the holder fork 6; Frame 1, angling cylinder 2, swing arm 3, Rocker arm 4, connecting rod 5, holder fork 6 are formed is one is just changeing six bar mechanism, and to pitch 6 gyratory directions be the same for the gyratory directions of rocking arm 3 and holder when the characteristics of just changeing six bar mechanism were action.In addition, the power transmission of this kind structure is bigger than very, and the angling cylinder 2 of less cylinder diameter just can satisfy instructions for use, and simultaneously because the gyratory directions of Rocker arm 4 is towards the loader car body when forking, Rocker arm 4 can not run into building stones when holder fork 6 rose.

In Fig. 2, angling cylinder 2 of the present invention, Rocker arm 4, connecting rod 5 have two respectively, are the better two rocker structures of a kind of stressing conditions, sight line; Fig. 3 illustrates the situation that connecting rod 5, Rocker arm 4, swing arm 3 and angling cylinder 2 are connected.

In Fig. 4, swing arm 3 is provided with between 8, two swing arm plates 8 of two swing arm plates and is provided with swing arm crossbeam 7, swing arm crossbeam 7 is provided with two rocker arm support plates 9, swing arm plate 8 and be fixed on the supporting seat that rocker arm support plate 9 on the swing arm crossbeam 7 is formed Rocker arm 4 together, more reasonable structure, bulk strength height; Rocking arm supported hole 10 on the swing arm plate 8 is in the neutral line position of bending, and is less to the degree influence of the swing arm plate Final 8.Adopt the structure of two rocking arms, double link, can be arranged in the position near swing arm plate 8, stressing conditions is more reasonable, and it is less that corresponding rod member size can be done, and the work sight line is better.

Among Fig. 5, the connecting rod support plate 11 of marble holder fork 6 is located at the top of holder fork 6 door frame transverse slats, therefore can reduce the height of the door frame transverse slat 12 in the marble holder fork 6, makes driver's the visual field better, helps driver's operation.

Operating principle of the present invention is: during use, the present invention is installed on the loader, loader drives holder fork 6 marble stone fork is adorned on it, because what holder fork 6 adopted is just to change six bar mechanism, pack up in the angular range at the holder fork 6 that requires, increase than gradually, can pitch dress greater weight stone with the 6 increase power transmissions of packing up angle of holder fork, the translation of pitching holder fork 6 in the process of assembling simultaneously 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 can obtain good operation sight line more.Therefore, the present invention has realized having the driver purpose of the big weight marble stone of works fine sight line situation lower fork dress.

Claims

1. marble supporting fork, comprise frame (1), one or more than one angling cylinder (2), swing arm (3), rocking arm (4), palette fork (6), described swing arm (3) and angling cylinder (2) are hinged on respectively on frame (1), rocking arm (4) arm body stage casing is hinged on swing arm (3), rocking arm (4) upper end is hinged with connecting rod (5), rocking arm (4) lower end is hinged on angling cylinder (2) other end, described frame (1), angling cylinder (2), swing arm (3), rocking arm (4), connecting rod (5), palette fork (6) forms a forward six bar mechanism, it is characterized in that: described swing arm (3) is provided with two swing arm plates (8), be provided with mobile beam (7) between two swing arm plates (8), mobile beam (7) is provided with two rocker arm support plates (9), the upper hinged rocking arm (4) of described rocker arm support plate (9), described angling cylinder (2), rocking arm (4), connecting rod (5) is respectively equipped with two, described forward six bar mechanism is the identical two rocker structures of a kind of both sides stressing conditions, described palette fork (6) is provided with door frame transverse slat (12), door frame transverse slat (12) top is provided with connecting rod support plate (11), connecting rod support plate (11) on connecting rod (5) other end and palette fork (6) is hinged.