SU926166A1 - Scraper - Google Patents

Description

one

The invention relates to excavating but-transporting machines, in particular .. to scrapers.

There is a known scraper containing a tack associated with a traction frame supported on the rear wheels. The hinge frame is articulated with a double slotted bucket in its middle part and the hydraulic cylinders of its control. A rotary damper is installed in the front part of the bucket, and a P. wall is movable in the rear.

A disadvantage of the known scraper is an increase in the time it takes to unload the bucket, since the double-slotted bucket is provided with one pushing wall that moves through the whole bucket, unloading the front and rear parts of the bucket at once,

In addition, to push the entire volume of the soil out of the bucket with one ejector wall, a large force is required which the hydraulic cylinders of the rear wall displacement mechanism must develop.

The closest technical solution to the invention is a scraper comprising a traction frame and a bucket containing side walls, a front flap, a bottom with a front cutting knife, a rear wall hinged to the side walls, with a cutting knife and a hydraulic cylinder turning it and positioning it the middle part of the push walls with hydraulic cylinders displacement G2.

The disadvantage of this design is the difficulty of bucket control during loading and the heavy loads on the control cylinders of the integral bucket, since when the rear part of the bucket is assembled, it is necessary to lift the front part of the bucket with the already gathered soil.

Claims (2)

The purpose of the invention is to simplify bucket control. This goal is achieved by the fact that the bucket is made of hinged parts interconnected in the lower part of the sections, each of which is equipped with control hydraulic cylinders mounted on the traction frame, and the rear knife of the rear wall is connected to it hingely, with each body of the hydraulic cylinders moving each The ejector walls are fixed on their working surfaces, and the rods are connected to the side walls of the respective sections. Figure 1 shows the scraper; figure 2 is a view of And figure 1; on fig.Z soil set scraper; in fig. unloading soil. The scraper 1 includes 1 ton of gauge 1 connected to a traction frame 2 supported on the rear axle 3 of the chassis k. On the traction frame 2, two bucket sections — front 5 and rear 6 — are articulated by means of side walls 7 and 8 and a common axis 9 between themselves and the traction frame 2. The front section bucket 5 includes side walls 7 of the bottom 10 with a cutting knife 11, hydraulic cylinders 12 for driving the bucket 5, the flap 13 and the hydraulic cylinder 1 for controlling it, pushing the wall 15 with the hydraulic cylinder housings 16 fixed on it, whose rods are fixed to the side walls 7 using brackets 17 The rear bucket 6 includes side walls 8, the bottom 18, hydraulic cylinders 19 control bucket 6, a damper 20 made in the form of a bulldozer blade, hinged on the side walls 8 and its control cylinders 21. On the bottom shutter 20, a cutting knife 22 is hinged with a rigid stop 23 connected to the cutting knife 22 hydraulic cylinder In bucket 6, an ejector wall 25 is installed with hydraulic cylinders 26 fixed on it with housings, the rods of which are fixed on the side walls 7 by means of brackets 17 The scraper works as follows. First, the front bucket 5 is filled. The valve 13 is opened by turning on the hydraulic cylinder 14. With the help of the hydraulic cylinders 12, the cutting knife 1 is sunk. at the same time, the bucket 5 rotates with respect to the axis 9. When the scraper is moved, the material is cut by the knife 11 and the bucket 5. is filled. After its filling, the flap 13 is closed, the bucket 5 is set to the transport position. Then, the rear bucket 6 is filled. Before the cutting blade 22, the hydraulic cylinders 2 are set to the working position until the stop 23 touches the shutter 20, which, in turn, is set to the working position by the hydraulic cylinders 21, forming a loading slot. By turning on the hydraulic cylinders 19, the cutting knife 22 is buried in the ground, while the bucket 6 is rotated about the axis 9. When the scraper is moved, the soil cutting rises along the curvilinear surface of the shutter 20 and rolls over, filling the bucket 6. After filling it, the valve 20 and cutting the knife 22 is installed in the transport position; in this case, the loading slot is closed and the bucket is deepened with the help of hydraulic cylinders. 19 The buckets are unloaded simultaneously with the front 13 and rear 20 open. Lonkila by moving pusher wall 15 and 25 by means of hydraulic cylinders 26. Front 1b and a bucket 5 is lowered and the knife 11 is set to a necessary thickness backfilled soil layer. The hydraulic cylinders 16 are turned on and the pushing-out wall 15 is moved forward along the scraper, pushing the soil out of the bucket 5. At the same time, the rear bucket 6 is unloaded as follows. The cutting knife 22 is set up in contact with the valve 20, which, in this case, is set to the rearmost position by means of hydraulic cylinders 21. The thickness of the ground layer is adjusted by the position of the bucket 6 and the valve 20. Then the hydraulic cylinders 26 are turned on and the ejector wall 25 is moved backwards scraper, pushing the soil out of the bucket 6, the front and rear bucket sections of the proposed scraper have independent actuators to control them. This greatly facilitates the work of the operator, does not require high qualifications from him and ensures stable performance during the entire shift. Claims. A scraper, including a traction frame and a bucket, containing front side flaps, a bottom with a front cutting knife, a rear wall hinged to the side walls with a cutting knife and a hydraulic cylinder of its rotation and located in the middle part of the ejecting walls with their hydraulic cylinders, This is due to the fact that, in order to simplify the control, the bucket is made of articulated between 66 themselves in the lower part of the sections, each of the 1X is equipped with control hydraulic cylinders mounted on the frame, and the back wall knife The hinge is pivotally connected thereto, wherein the shells of the hydraulic cylinders for moving each eject wall are attached to their working surfaces, and the rods are connected to the side walls of the respective sections. Sources of information taken into account during the examination 1. USSR author's certificate N-6U177, cl. F 02 F 3/6, 1977. 2.Avtorskoe certificate of the USSR for the certificate t 2888735, cl. E 02 F 3/64, 27.02.80. 1 t and KQ 7  1 m / -H.  9.25Х f At ISff ga, 26 V l fs if h tta