SU1116122A1 - Arrangement for forming a trench - Google Patents

Abstract

1. DEVICE FOR TRENCH FORMATION, including a base machine, a pivotally mounted boom, a arm with a bucket, an insert rigidly connected to the boom and a hinge with a handle, hydraulic cylinders of boom, arm and bucket rotation, characterized in that The purpose of improving the device performance is that the ratio of the length of the handle to the insert length is 0.5-1.2, and the ratio of the insertion angle relative to the boom to the insertion angle relative to the maximally extended handle is 0.8-1.3. 2. The device according to claim 1, characterized in that the insert is null from sections installed with the possibility of mixing one relative to the other, the middle section is placed in the outermost, and the hydraulic cylinder of the handle rotation is installed on the extreme section of the insert from the side of the handle. Oh with

Description

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The invention relates to underground construction and relates to equipment for digging trenches with vertical walls during the construction of underground structures using the "wall in soil" method.

A device for forming trenches is known, including a base machine, a boom that is hinged on it, a handle with a bucket, and hydraulic cylinders for turning the boom, the handle and the bucket 1.

The disadvantage of this device is the limited scope of its application, which is caused by the small radius of action of the boom and, accordingly, the insignificant depth of the trenches it digs.

The closest in technical essence and the achieved result to the invention is a device for forming trenches, including a base machine, a boom hinged on it, a handle with a bucket, an insert rigidly connected to the boom and a hinge with a handle, boom turn cylinders and bucket 2.

The disadvantage of such a device is low productivity when digging trenches of unequal depth and under different conditions of unloading the bucket.

The purpose of the invention is to increase the productivity of the device at different depths of excavated trenches and unloading bucket conditions.

The goal is achieved by the fact that in a trenching device,. including a base machine, an boom hinged on it, a handle with a bucket, an insert rigidly connected to the boom and an articulated arm, a hydraulic cylinder for turning the boom, a handle and a bucket, the ratio of the length of the handle to the insert length is 0.5- 1.2, and the ratio of the insertion angle with respect to the boom to the insertion angle with respect to the maximally extended handle is 0.8-1.3.

In addition, the insert is made of sections installed with the possibility of moving one relative to the other, the middle section being placed on the edge of them, and the hydraulic cylinder for turning the handle is mounted on the extreme section of the insert on the side of the handle.

FIG. 1 shows a device for forming trenches, general view; in fig. 2 shows the construction of an insert of adjustable length in the assembled position; in fig. 3 - the same, in the unfolded position. The device includes a base machine 1, a boom 2 hinged on it, a box 3 rigidly connected with a boom 2, a handle 4, pivotally mounted with respect to the insert 3, a bucket 5 and hydraulic cylinders 6, 7 and 8 controlling by an arrow 2, a handle 4 and a ladle 5. The handle and the insert are made such that the ratio of their lengths is in the range of 0.5-1.2, and the ratio of ygUB

The catch of the installation of the insert with respect to the boom and the handle with respect to the insert with the handle maximally extended is within the range of 0.8-1.5. With this ratio of the length of the handle and the insert and the mounting angles of the handle, the insert and the boom, the device achieves maximum performance.

With frequent changes in the conditions of unloading and digging trenches with horizontal layers, the insert 3 can be made of variable length to ensure the highest possible performance. Such an insert 3 includes the outer sections 9 and 10 and the middle section 11 inserted into them. The hydraulic cylinder At the turn of the handle 4 is placed on the section 10 connected to the handle 4. Sections 9,10 and, And are mounted with the possibility of axial movement between them for adjustment length of insert 3. 0 In general, with a relatively unchanged unloading conditions of 5 and a digging depth, the insert is made of a constant length, which is chosen in accordance with a ratio of 0.5-1.2. determine the most advantageous lengths of the insert 3 and the arm 4.

Trenching is done as follows.

The insert 3 with the handle 4 and the hood 5 is immersed in the trachea, by turning the hood 5 at

 using the hydraulic cylinder 8, the soil is dredged, then the insert 3 with the handle 4 and the bucket 5 is removed from the trench, the base machine 1 is rotated and the bucket 5 is unloaded.

5 The use of the present invention improves the performance of the device for forming trenches with vertical walls by reducing the cycle time.

Claims (2)

1. DEVICE FOR EDUCATION OF TRANCHES, including the base machine, an arrow pivotally mounted on it, a handle with a bucket, an insert rigidly connected to the arrow and pivotally with a handle, hydraulic cylinders for turning the arrow, handle and bucket, characterized in that, in order to increase productivity devices, the ratio of the length of the handle to the length of the insert is 0.5-1.2, and the ratio of the insertion angle of the insert relative to the boom to the insertion angle of the insert relative to the most folded handle is 0.8-1.3. 2. The device according to π. 1, characterized in that the insert is made of sections mounted with the possibility of moving one relative to the other, with the middle section located at the extreme, and the handle rotation cylinder mounted on the end section of the insert on the handle side. 77IQI 1 1 Figure 1