SU916673A1 - Trencher - Google Patents

Description

The invention relates to earthmoving machines and can be used to develop deep trenches under the protection of the mud., For example during the construction of impervious diaphragms and supporting walls ⁵

deep laying in hydraulic engineering construction.

A device for the formation of slit trenches in the ground under the protection of the mud, including a base machine, a working body with cutting elements, a vertical stand with guides, on which the carriage of the working body and the transport device are mounted [1].

However, the need for radial development of the soil and its subsequent transportation from the trenches by the airlift _and tomfom requires additional compressor and cleaning devices.

This reduces the pace of construction, complicates the technology of work,

2

increases the consumption of clay solution, requires additional labor costs.

Closest to the proposed is a trench excavator, including a base machine, a guide rack with a carriage and a bucket with a handle connected to the haul rope [2].

With an increase in the trench depth and the hardness of the soil being developed, the bending force on the stand and on the handle increases significantly. Attempting to increase the rigidity of the handle and the rack increases their weight and gab-. , which reduces the stability of the machine, increases the cycle time and, ultimately, makes it impossible to use it to install trenches in dense soils with a depth of more than 10-15 m. '

The purpose of the invention is to increase the depth of digging.

This goal is achieved by the fact that on a trench excavator, including

3

The base machine, a guide post with a carriage and a bucket with a handle connected to the traction and lifting ropes, is equipped with a stop valve fixed to the cajette, having a lever and installed with the possibility of horizontal movement towards the bucket, while the flap lever is connected to the rope through the pulley a slot is made in which the axis of the movable block of the chain hoist is arranged to move.

The trench excavator is equipped with a stop connected to the guide bar in its upper part, installed with the possibility of interaction with the movable axis of the chain hoist.

Figure 1 shows a trench excavator, side view; figure 2 - carriage with a bucket, a cut.

The trench excavator contains a base machine 1, a guide post 2, along which the carriage 3 moves with the hinge 4 hinged on it, on which the bucket 5 is rigidly fixed with cutting elements. The axis of the movable block 6 of the polyspast is articulated with the handle of the bucket 4 with the ability to move in the slot of the handle 7- In the lower part of the carriage 3 a stop valve 8 is installed with the possibility of its horizontal movement towards the face, pivotally connected by an earring 9 with the lever 10 of the valve on which the finger is fixed 11, which engages with the shank 12, made in conjunction with the bucket handle A. Lifting rope 13 through the block 14 and the traction rope 15 movable and fixed blocks 6 and 16 of the polyspast attached to the lever 10 of the valve. The upper part of the guide rack 2 is provided with a fixed support 17 fixed on it with the possibility of supporting the movable axis of the polyspast 6 and the inclined tray 18 for feeding the soil

dump

I

Trench excavator works as follows.

The base machine 1 is set along the axis of the wall being arranged. 3, a previously developed well is lowered a guide post 2. With the help of a lifting rope 13, the carriage 3 is lowered with the bucket 5 raised on the bottom 55 of the developed trench. Through the tension of the traction rope 15 and the weakening of the rope 13 rotates the lever

916673

45

at

four

10 flaps, removing from engagement a finger with a shank of the handle 12, and through the shackle 9 move the stop flap 8 towards the bottom. Simultaneously, the axis 5 of the movable block 6 of the tackle, moving up and in the slot of the handle 7. turns the handle 4 with the bucket 5> while developing the soil with the cutting elements of the bucket until it closes with the stop valve 8. When lifting the rope 15 continue raising the carriage 3 with the rope 13 at which tension the lever 10 rotates, and through the shackle 9 they move the stop valve 8 to the initial position. The unloading of the bucket 5 is carried out after turning it to the upper position, while the shank of the handle 12 engages with the finger 20 11, keeping the bucket in this position. The soil from the bucket is unloaded into the inclined chute 18 and enters the dump. After the development of the soil to a predetermined depth, the cable 13 lifts the guide post 2 above the bottom of the trench and moves the base machine 1 by the amount of chip thickness, after which the cycle repeats.

The effectiveness of the proposed trench excavator is achieved by increasing the depth of development of the soil, increasing the pace of construction, reducing the weight of the machine and the consumption of mud.

Claims (2)

Claim 1. A trench excavator including a base machine, a guide post with a carriage and a bucket with a handle connected to the haul and lifting ropes, characterized in that, in order to increase the depth of digging, the trench excavator is equipped with a stop gate fixed to the carriage having a lever and installed with the possibility of horizontal movement towards the bucket, while the flap lever is connected to the rope by means of a polyspast, and a slit is made in the handle, in which the axis of the movable block is positioned to move the polis hundred. 2. An excavator according to claim 1, in accordance with the fact that it is equipped with an associated stand thirty 35 40 people 50 916673 its upper part is an emphasis installed with the possibility of interaction with the movable axis of the tackle.