CN202390865U

CN202390865U - Marble support fork

Info

Publication number: CN202390865U
Application number: CN 201120442009
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: 2012-08-22
Anticipated expiration: 2021-11-10

Abstract

The utility model discloses a marble support fork, which belongs to the field of engineering machinery. The marble support fork disclosed by the utility model overcomes the defect that a heavy stone is difficult to fork by the marble support fork in the prior art. The marble support fork comprises a rack, one or more than one rotary oil cylinder, a movable arm, a swing arm and a support fork, wherein the support fork is provided with a gantry transverse plate, the gantry transverse plate is provided with a connecting rod support plate, the movable arm and the rotary oil cylinder are respectively hinged to a rack, the swing arm is hinged to the movable arm, the upper end of the swing arm is hinged with a connecting rod, the lower end of the swing arm is hinged with the other end of the rotary oil cylinder, the other end of the connecting rod is hinged with the connecting rod support plate on the support fork, and the rack, the movable arm, the swing arm, the connecting rod, the rotary oil cylinder and the support fork constitute a forward six-link mechanism. The marble support fork disclosed by the utility model is mainly applied to the manufacturing industry of engineering machinery.

Description

Marble holder fork

Technical field

The utility model belongs to a kind of operating mechanism on the engineering machinery wheel loader, specifically, relates 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 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 field is for economic benefit, and 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 by routine, owing to receive hoisting power and the load limit of tumbling; Must could accomplish 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, and moved after making the material center of gravity; And the method for the cylinder diameter of increase swing arm lift cylinder, can 22 tons marble blocks be risen to 1.7 meters high, can be used for loading truck; But have 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; 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 property 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 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.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 possibly appear, if the front has people and important item will produce great risk in the lifting process.

The utility model content

The purpose of the utility model provides a kind of marble holder fork, and 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 utility model is to adopt following technical scheme to realize: a kind of marble holder fork, comprise frame, one or more than one angling cylinder, swing arm, rocking arm, holder fork, and holder is stuck and is provided with the door frame transverse slat, and the door frame transverse slat is provided with the connecting rod support plate; Said 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 and the angling cylinder other end are hinged, and the connecting rod other end is hinged with the connecting rod support plate that holder is stuck, and said frame, swing arm, rocking arm, connecting rod, angling cylinder, one of holder fork composition are just changeing six bar mechanism.

Swing arm is provided with two swing arm plates, is provided with the swing arm crossbeam between two swing arm plates, and the swing arm crossbeam is provided with two rocker arm support plates, is hinged with rocking arm on the said rocker arm support plate; Marble holder fork is provided with two angling cylinders and is advisable; Said connecting rod support plate preferably is located at the top of door frame transverse slat.

Compared with prior art, the beneficial effect of the utility model is: 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.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the vertical view of the utility model;

Fig. 3 is the partial enlarged drawing I of Fig. 2;

Fig. 4 is the perspective view of the swing arm of the utility model;

Fig. 5 is the perspective view of the holder fork of the utility model.

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

Below in conjunction with accompanying drawing the utility model is described further.

Among Fig. 1; A kind of marble holder fork, swing arm 3 is hinged on the frame 1 with angling cylinder 2, and Rocker arm 4 stage casing arm body is hinged on the swing arm 3; 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 it is hinged that 6 lower ends are pitched in swing arm 3 front ends and marble holder, and holder fork 6 upper ends are hinged with the other end of connecting rod 5 through connecting rod support plate 11; 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; The gyratory directions of rocking arm 3 was the same with the gyratory directions of holder fork 6 when the characteristics of just changeing six bar mechanism 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 since when forking the gyratory directions of Rocker arm 4 can not run into building stones towards the loader car body.

Among Fig. 2, the angling cylinder 2 of the utility model, 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.

Among Fig. 4, in the swing arm 3, swing arm 3 is provided with 2 swing arm plates 8; Be provided with swing arm crossbeam 7 between 2 swing arm plates 8, swing arm crossbeam 7 is provided with 2 rocker arm support plates 9, swing arm plate 8 be fixed on rocker arm support plate 9 on the swing arm crossbeam 7 and form the supporting seat of Rocker arm 4 together; More reasonable structure, bulk strength is high; 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.

The operating principle of the utility model is: during use, the utility model is installed on the loader, loader drives holder fork 6 the marble blocks fork is loaded onto; Because what marble holder fork adopted is just to change six bar mechanism; Holder fork 6 requiring is packed up in the angular range, than what still increase gradually, can pitch dress than ratchel with the increase power transmission of asking fork 6 to pack up angle; Pitch simultaneously and ask fork 6 translation property also fine in the process of assembling, do not have the situation of automatic discharging in the lifting process; The utility model also adopts reasonable structural design, makes the driver obtain good operation sight line more.Therefore, the utility model has realized having the driver purpose of the big marble stone of works fine sight line situation lower fork dress.

Claims

1. marble holder fork comprises frame (1), one or more than one angling cylinder (2), swing arm (3), rocking arm (4), holder fork (6), and it is characterized in that: holder fork (6) is provided with door frame transverse slat (12), and door frame transverse slat (12) is provided with connecting rod support plate (11); Said swing arm (3) and angling cylinder (2) are hinged on respectively on the frame (1); rocking arm (4) arm body stage casing is hinged on the 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, and the connecting rod support plate (11) on connecting rod (5) other end and the holder fork (6) is hinged, and said frame (1), angling cylinder (2), swing arm (3), rocking arm (4), connecting rod (5), one of holder fork (6) composition are just changeing six bar mechanism.

2. marble holder fork according to claim 1; It is characterized in that: swing arm (3) is provided with two swing arm plates (8); Be provided with swing arm crossbeam (7) between two swing arm plates (8), swing arm crossbeam (7) is provided with two rocker arm support plates (9), is hinged with rocking arm (4) on the said rocker arm support plate (9).

3. marble holder fork according to claim 1 is characterized in that: said marble holder fork is provided with two angling cylinders (2).

4. according to claim 1 or 2 or 3 described marble holder forks, it is characterized in that: said connecting rod support plate (11) is located at the top of door frame transverse slat (12).