RU66754U1 - DIGGER - Google Patents

Abstract

The digging machine is intended for use in road construction, land reclamation and other works related to the movement of soil. An earth moving machine comprises a body with an operator’s cabin, a chassis, a motor-power unit, a working (earth moving) body connected to the body of the machine, a control unit for the earth moving machine, and at least one locator. The locator is connected to the working body of the machine and the control unit of the digging machine. 2 C.p.F., 5 ill.

Description

The utility model relates to the field of mechanical engineering, in particular to earth moving machines - bulldozers - cultivators and excavators used in road construction, land reclamation and other works related to soil development.

A number of road-building machines are known, which are analogues of the claimed earthmoving machine: bulldozers, continuous trench excavators, single-bucket excavators, etc. (see, for example, patents of the Russian Federation No. 2088729, 2270299).

A common drawback of the known designs of earthmoving machines is that, during earthworks, the blade or ripper of the bulldozer, as well as the excavator bucket, can scratch or dent the pipe located in a small depth or when clearing snow from sites (sections) that have the pipeline exit to the surface . The causes of many accidents and incidents on the pipeline are mechanical damage to the pipeline wall by earthmoving equipment, since there is a high probability of pipeline ruptures in the places of damage with the subsequent exit of the pumped product from the pipeline.

Known devices designed to inspect areas before excavation, namely for non-contact determination of the location and depth of underground and hidden pipelines, such as cables or pipelines (see RF patent No. 2206106).

The domestic industry (ZAO NPF Radio-Service, Izhevsk) produces a device - the Stalker-2 locator, designed to determine the route and the depth of the pipelines with cathodic protection in the presence of interference from high-voltage

power lines, intersecting and parallel power high-frequency cables, as well as with a nearby parallel pipeline with the same cathodic protection current. The Stalker-2 device is a portable device with autonomous battery power and with a built-in charger, it contains a portable probe and a dial indicator, located together with the controls in a shockproof case.

This device determines the location of the pipeline at a depth of 8 meters, the error in determining the depth of not more than 10% of the depth of the pipeline. Information on this device is published, see the Internet page: http://www.radio-service.ru/rs-pribor/stalker.html

The disadvantage of this and similar devices is that this device is used by operators moving, as a rule, on foot along the studied area. This operation should precede excavation in order to minimize the likelihood of mechanical damage to underground utilities. Such a preliminary survey of the route is laborious and unproductive, significantly increases the period of time required for the excavation.

The objective of the proposed technical solution is to increase the productivity of earthworks by reducing the time required for a preliminary survey of the presence and depth of underground utilities in a given area. The problem is solved due to the fact that the digging machine, comprising a housing with an operator’s cabin, a running gear, a motor-power plant, a working (digging) body connected to the housing of the machine, the control unit of the digging machine, according to the claimed technical solution, the machine is additionally equipped, at least one locator connected to the worker

machine body and earthmoving machine control unit.

The locator can be mounted on a rotary frame mounted on a working body with the possibility of rotation around the horizontal axis in the working and transported position using two hydraulic cylinders pivotally mounted on the rotary frame.

The essence of the technical solution is illustrated by the drawing, which shows

- figure 1, 2 - the proposed digging machine (bulldozer-ripper), equipped with a locator, side view and top view, respectively;

- figure 3 is a digging machine (excavator), equipped with a locator, side view;

- figure 4 - earth moving machine (trench excavator), equipped with a locator, side view.

The proposed earth moving machine (for example, a bulldozer-ripper or a trench excavator) contains the following units, components and devices.

On the bulldozer blade 1 of the base machine (tractor) 2 (Fig. 1), a horizontal axis 3 is mounted on which a removable pivoting frame 4 is pivotally mounted with trace detectors 5 mounted on it, which are capable of transmitting information, signals from route finders 5 to the operator’s cabin 6 earth-moving machine, for example, on the display of the signal indication device 7. The rotary frame 4 is pivotally connected through the lever leashes with the rods of the hydraulic cylinders 8, which are also mounted on two brackets mounted on the dozer blade 1. Rotary I frame 4 is installed in such a way that in its working position during excavation to open a section of the pipeline, the locator are located in front of the dump of the digging machine at a distance determined by

the formula

L = V / 0,6hb, where V is the volume of soil moved by the digging machine, m ³ ; h - dump height, m; b is the length of the blade, m. This location of the route finders eliminates the ingress of soil onto them from the prism of the drawing, and is also sufficient to quickly stop the digger in order to prevent damage to the pipeline by the working body when the locator detects a pipeline buried less than the thickness of the layer being developed by the working bodies of the earth moving machine .

It is possible to move the frame 4 to the transported position, while the track finders do not interfere with the view.

If the digging machine is an excavator (Fig. 3), the tracer 5 can be mounted on the underside of the handle 9 of the boom 10 of the excavator.

Earth-moving machine operates as follows.

Before deepening the working body of the earth-moving machine into the ground, the operator checks the opening section for the depth of the pipeline with a depth detector and, making sure that the working body does not touch the pipeline, begins to develop the soil. The operation of the locator by the operator of the digging machine (bulldozer - ripper, excavator) is controlled directly from the cab. If the locator 5 detects underground communications, for example, a pipeline at a dangerous distance from the working body, the signal from the locator is transmitted to the cab of the digger, for example, via a wired communication channel and is displayed on the display of the signal indication device. At the same time, the stop of the digging machine can be carried out either manually or in automatic mode.

Claims (3)

1. Earth-moving machine, comprising a housing with an operator’s cabin, a running gear, a motor-power plant, a working (earth-moving) body connected to the machine’s body, an earth-moving machine control unit, characterized in that the machine is additionally equipped with at least one locator, connected to the working body of the machine and the control unit of the digging machine. 2. The earth-moving machine according to claim 1, characterized in that the locator are located on a rotary frame fixed to the working body with the possibility of rotation around the horizontal axis in the working and transported position using two hydraulic cylinders pivotally mounted on the rotary frame. 3. The earthmoving machine according to claim 1, characterized in that the locator are mounted on the lower side of the boom arm, on which the earthmoving body is fixed.