CN103790193A

CN103790193A - Vertical lifting and unloading working device of loader

Info

Publication number: CN103790193A
Application number: CN201210562708.7A
Authority: CN
Inventors: 付文君; 傅稼浩; 刘浩
Original assignee: QINGDAO LUDA PROJECT MACHINE MANUFACTURE CO Ltd
Current assignee: QINGDAO LUDA PROJECT MACHINE MANUFACTURE CO Ltd
Priority date: 2012-12-17
Filing date: 2012-12-17
Publication date: 2014-05-14

Abstract

The invention discloses a vertical lifting and unloading working device of a loader. The vertical lifting and unloading working device comprises a fixing support, movable arms, movable arm cylinders, a bucket and a bucket turnover cylinder. The front ends of the movable arms are connected to the bottom of the bucket, and the front ends of the movable arm cylinders are connected to the middles of the movable arms. The vertical lifting and unloading working device is characterized in that upper rotary handles are arranged on the upper portion of the fixing support, shifting rods are arranged at the rear ends of the movable arms, lower rotary handles are arranged in the middle of the fixing support, and the upper rotary handles, the lower rotary handles, the shifting rods and the upper section of the fixing support form four-bar linkage mechanisms. The vertical lifting and unloading working device has the advantages that the movable arms can rotate and translate in lifting procedures, so that the bucket can be vertically lifted in a running path of the bucket, the work efficiency of the loader can be improved, and the lifting height and the unloading distance of a working mechanism of the loader can be increased; the vertical lifting and unloading working device is compact in structure and particularly suitable for small loaders, and can run stably.

Description

Loading apparatus vertical lift discharge machining device

Technical field

The present invention relates to a kind of loader field, specifically a kind of loading apparatus vertical lift discharge machining device.

Background technology

The equipment of loader has been the key mechanism of handling operation, and its form of structure can be directly connected to operating efficiency and the economic indicator of loader.At present, the equipment of loader mainly contains swing arm, connecting rod, rocking arm, scraper bowl overturning oil cylinder, boom cylinder, fixed support forms, fixed support is fixed on car body, for small sized loader, the rear side of what fixed support also had be fixed on car front axle, the rear end of swing arm is connected with fixed support by the jointed shaft of fixed support upper end, appropriate location at swing arm is connected fixed support with boom cylinder with swing arm, in equipment lifting process, because the seat end of swing arm is to rotate along the axle that is fixedly hinged, under the effect of boom cylinder expansion link, the front jointed shaft of swing arm and the lifting running orbit of scraper bowl are an arc, this arching trajectory is fixedly hinged axle as the center of circle take the seat end of swing arm, because the seat end jointed shaft of swing arm is immovable, so this arching trajectory is also fixed, the equipment of this kind of structure has the following disadvantages: the one, in order to expand the scope of activities of swing arm, its swing arm need to do very longly, and in the time droping to bottom, it is long that the front jointed shaft of swing arm stretches out the distance of frame, make complete machine longer, affect flexibility and the stability of equipment, the 2nd, in the time that scraper bowl rises to swing arm from horizontal level to extreme higher position, the front jointed shaft of swing arm and scraper bowl have one section of retraction distance along arching trajectory, therefore the handling distance of loader is diminished, reduce the operating efficiency of working device of loader, affected lifting height and distance, it is more obvious that this shortcoming shows on small sized loader.

Summary of the invention

The object of the present invention is to provide one can overcome above the deficiencies in the prior art, make the equipment compact conformation of loader, it in uphill process, is vertical operation, make the loading apparatus vertical lift discharge machining device that its operating efficiency is high, also can improve lifting height and discharging distance, be specially adapted to middle-size and small-size loader.

For reaching above object, the technical solution adopted in the present invention is: this loading apparatus vertical lift discharge machining device, by fixed support, swing arm, boom cylinder, scraper bowl, scraper bowl overturning oil cylinder forms, the front end of swing arm is connected to the bottom of scraper bowl by scraper bowl bottom-hinged axle, the front end of boom cylinder expansion link is connected to the middle part of swing arm by swing arm middle part jointed shaft, the expansion link front end of scraper bowl overturning oil cylinder is connected by the upset jointed shaft of rod rear end and the upset connecting rod of scraper bowl rear side, it is characterized in that: connect handler by the jointed shaft of fixed support upper end on support bracket fastened top, establish fixing poke rod in the rear end of swing arm, the turning cylinder that the outer end of upper handler is connected with upper handler by poke rod and the upper end of poke rod connect, set handler at support bracket fastened middle part, the turning cylinder that the outer end of lower handler is connected with lower handler by poke rod and the lower end of poke rod connect, make, between lower handler and poke rod and support bracket fastened epimere, form quadric chain, the jointed shaft at turning cylinder that the base of scraper bowl overturning oil cylinder is connected with lower handler by poke rod middle part is fixed on the middle part of the turning cylinder that poke rod is connected with lower handler, in the time that the expansion link of boom cylinder outwards stretches, the front end of swing arm starts to rise, meanwhile, rotate swing arm bottom, drive poke rod rotates counterclockwise, poke rod is stirred handler and is clockwise rotated, when the uphill process from horizontal level to extreme higher position at swing arm, upper handler upwards clockwise rotates, meanwhile pull poke rod, poke rod pulls swing arm to move up again, make scraper bowl in the process that rises to extreme higher position, move forward simultaneously, eliminate the retraction track of scraper bowl, keep straight line to rise.The present invention also implements by following measure: establish fixed head in support bracket fastened inner side, establish the turning cylinder of boom cylinder in the inner of fixed head, the base of boom cylinder is fixed on the turning cylinder of boom cylinder, and the base of boom cylinder also can be fixed on car body; Described swing arm is established left and right two, its front end is fixed on respectively the left and right end of scraper bowl bottom by left and right scraper bowl bottom-hinged axle, corresponding boom cylinder is also established left and right two, its base is separately fixed at the left and right end of the turning cylinder of boom cylinder, thereby realize, the left and right end of scraper bowl is exerted oneself simultaneously, make scraper bowl lifting stable, firmly homogeneous; Described poke rod is also that triangle is tabular, and to increase the intensity of poke rod, poke rod can be manufactured in aggregates with swing arm; The fixed head of described fixed support inner side is that triangle is tabular, and the interior angle of its fixed head stretches out, and the base of fixed head and support bracket fastened inner edge are welded as a whole; The two ends of the turning cylinder that described poke rod is connected with upper handler, are separately fixed at the upper end of left and right upper handler; The two ends of the turning cylinder that described poke rod is connected with lower handler, are separately fixed at the upper end of left and right lower handler, also establish and are welded and fixed plate, to increase resistance to overturning in the upper end of left and right lower handler.Use time of the present invention, support bracket fastened bottom need be fixed on the front axle of loader, or the front side of front axle.

Beneficial effect of the present invention is: compared with the equipment using on current loader, due to swing arm existing rotation in lifting process, there is again translation, make the running orbit of scraper bowl reach the object of vertical lift, therefore improved the operating efficiency of loader, the lifting height of its operating mechanism and discharging distance have also obtained expansion, and compact conformation, stable, are specially adapted to small sized loader.

Accompanying drawing explanation

Fig. 1 is that structure master of the present invention looks schematic diagram.

Fig. 2 is the schematic side view of scraper bowl of the present invention in extreme lower position.

Fig. 3 is the schematic side view of swing arm of the present invention while being horizontal level.

Fig. 4 is the schematic side view of scraper bowl of the present invention in the time of extreme higher position.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

As shown in Fig. 1 Fig. 2 Fig. 3 Fig. 4, loading apparatus vertical lift discharge machining device, is made up of fixed support 1, swing arm 2, boom cylinder 3, scraper bowl 4, scraper bowl overturning oil cylinder 5, wherein the front end of swing arm 2 is connected to the bottom of scraper bowl 4 by scraper bowl bottom-hinged axle 6, the front end of boom cylinder 3 expansion links is connected to the middle part of swing arm 2 by swing arm middle part jointed shaft 7, the expansion link front end of scraper bowl overturning oil cylinder 5 is connected with the upset connecting rod 9 of scraper bowl 4 rear sides by the jointed shaft 8 of upset connecting rod 9 rear ends, top at fixed support 1 connects handler 11 by the jointed shaft 10 of fixed support 1 upper end, establish fixing poke rod 12 in the rear end of swing arm 2, the turning cylinder 13 that the outer end of upper handler 11 is connected with upper handler 11 by poke rod 12 and the upper end of poke rod 12 connect, set handler 14 at the middle part of fixed support 1, the turning cylinder 15 that the outer end of lower handler 14 is connected with lower handler 14 by poke rod 12 and the lower end of poke rod 12 connect, make,

lower handler

11, 14 and poke rod 12 and the epimere of fixed support 1 between form quadric chain, the jointed shaft 18 at turning cylinder 15 middle parts that the base of scraper bowl overturning oil cylinder 5 is connected with lower handler 14 by poke rod 12 is fixed on the middle part of the turning cylinder 15 that poke rod 12 is connected with lower handler 14.Establish fixed head 16 in the inner side of fixed support 1, establish the turning cylinder 17 of boom cylinder 3 in the inner of fixed head 16, the base of boom cylinder 3 is fixed on the turning cylinder 17 of boom cylinder 3, and the base of boom cylinder 3 also can be fixed on car body; Described swing arm 2 is established left and right two, its front end is fixed on respectively the left and right end of scraper bowl 4 bottoms by left and right scraper bowl bottom-hinged axle 6, corresponding boom cylinder 3 is also established left and right two, its base is separately fixed at the left and right end of the turning cylinder 17 of boom cylinder 3, thereby realize, the left and right end of scraper bowl is exerted oneself simultaneously, make scraper bowl lifting stable, firmly homogeneous; Described poke rod 12 is that triangle is tabular, and poke rod 12 can be manufactured in aggregates with swing arm 2; The fixed head 16 of described fixed support 1 inner side is also that triangle is tabular, and the interior angle of its fixed head 16 stretches out, and the inner edge of the base of fixed head 16 and fixed support 1 is welded as a whole; The two ends of the turning cylinder 13 that described poke rod 12 is connected with upper handler 11, are separately fixed at the upper end of left and right upper handler 11; The two ends of the turning cylinder 15 that described poke rod 12 is connected with lower handler 14 are separately fixed at the upper end of left and right lower handler 14, also establish and are welded and fixed plate 19 in the upper end of left and right lower handler 14.

Claims

1. a loading apparatus vertical lift discharge machining device, formed by fixed support, swing arm, boom cylinder, scraper bowl, scraper bowl overturning oil cylinder, the front end of swing arm is connected to the bottom of scraper bowl by scraper bowl bottom-hinged axle, the front end of boom cylinder expansion link is connected to the middle part of swing arm by swing arm middle part jointed shaft, the expansion link front end of scraper bowl overturning oil cylinder is connected by the upset jointed shaft of rod rear end and the upset connecting rod of scraper bowl rear side.It is characterized in that: connect handler by the jointed shaft of fixed support upper end on support bracket fastened top, establish fixing poke rod in the rear end of swing arm, the turning cylinder that the outer end of upper handler is connected with upper handler by poke rod and the upper end of poke rod connect, set handler at support bracket fastened middle part, the turning cylinder that the outer end of lower handler is connected with lower handler by poke rod and the lower end of poke rod connect, the jointed shaft at turning cylinder that the base of scraper bowl overturning oil cylinder is connected with lower handler by poke rod middle part is fixed on the middle part of the turning cylinder that poke rod is connected with lower handler.

2. loading apparatus vertical lift discharge machining device according to claim 1, is characterized in that: establish fixed head in support bracket fastened inner side, establish the turning cylinder of boom cylinder in the inner of fixed head, the base of boom cylinder is fixed on the turning cylinder of boom cylinder.

3. loading apparatus vertical lift discharge machining device according to claim 1 and 2, it is characterized in that: described swing arm is established left and right two, its front end is fixed on respectively the left and right end of scraper bowl bottom by left and right scraper bowl bottom-hinged axle, corresponding boom cylinder is also established left and right two, and its base is separately fixed at the left and right end of the turning cylinder of boom cylinder; Described poke rod is that triangle is tabular, and poke rod can be manufactured in aggregates with swing arm; The fixed head of described fixed support inner side is also that triangle is tabular, and the interior angle of its fixed head stretches out, and the base of fixed head and support bracket fastened inner edge are welded as a whole; The two ends of the turning cylinder that described poke rod is connected with upper handler, are separately fixed at the upper end of left and right upper handler; The two ends of the turning cylinder that described poke rod is connected with lower handler, are separately fixed at the upper end of left and right lower handler, also establish and are welded and fixed plate in the upper end of left and right lower handler.