SU1162912A1 - Versions of trencher for frosted and compact soil - Google Patents

Abstract

D. Trencher for frozen and dense soils, including a base machine with two bar working bodies installed on it, on the driven shaft of which a horizontal milling cutter is placed, a lifting and lowering tool of bar working bodies, a device for removing loosened soil and a back shovel bucket with side walls and a control mechanism installed after the bar working bodies for the movement of the movement of the base machine, characterized in that, in order to improve the productivity by tearing off the ground pillar from an array with a chip, a backsplash bucket is equipped with a hydro-cleaving mechanism installed in its cavity, made in the form of a hydraulic jack installed in the rear part of the side wall of the backsplash bucket (LTA, and a vertical slat installed in the lists of the part of the opposite sidewall.

Description

.2, Trencher for frozen and dense soils, including a base machine with double working tools mounted on it ..., on a driven shaft of which a horizontal milling cutter, lifting and lowering device of working tools bar is located, a device for removing loosened weight and a backhoe shovel with side walls and a control mechanism installed behind the bar working bodies in the direction of movement mounted behind the bar working 12 bodies in the direction of movement of the base machine, characterized in that Performance through the removal of the ground pillar from the array with a chip, a backhoe bucket is equipped with a hydraulic clearing mechanism installed in its cavity, made in the form of two groups of hydraulic jacks with a wedge-shaped working surface installed in the front parts of the side walls of the backhoe shovel one opposite the other.

The invention relates to earthmoving machinery, in particular to trench excavators for the development of loose and dense soils.

Known semper machine, including a basic machine with two chain working bodies installed on it, on the driven shaft of which a horizontal undercut milling cutter is mounted

The disadvantage of this machine is the lack of funds for the excavation of the pillar, cut by the chain working bodies and the cutter.

The closest to the invention to the technical essence and the achieved result is a trencher for frozen and dense soils, including a base machine with two bar working bodies installed on it, on the driven shaft of which a horizontal milling machine, lifting and lowering device of bar working bodies are placed, removal of debris: of a primer and a backhoe bucket with side walls and a control mechanism, installed behind the bar workers. THEIR SYSTEMS - t along the movement of the base machine 21 .

A disadvantage of the known trencher design is the need to cut a vertical transverse slit to separate the block of ground, which is possible if the cutting of vertical and horizontal slits is stopped. This leads to a decrease in the productivity of the machine and an increase in the wear of the cutting tools.

The purpose of the invention is to increase productivity by the separation of the pillar of the soil from the array with a chip.

The goal is achieved by the fact that in a trencher FOR frozen and dense soils, including a base machine with two bar working bodies installed on it, on the driven shaft of which a horizontal milling cutter is located, a lifting tool of bar working bodies, a device for removing loosened soil and a return bucket shovels with side walls and a control mechanism installed behind bar tools

along the movement of the base machine, the backsplash bucket is equipped with a hydrolocker mechanism installed in its cavity, made in the form of a hydraulic cylinder installed in the rear of the backside of the backsplash bucket and a vertical plate installed in the front part of the opposite sidewall.

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in the device according to the second option

The backhoe bucket is equipped with a hydraulic spike-mounted mechanism in its cavity, made in the form of two groups of hygroscopic jacks with a wedge-shaped working surface, mounted in front parts of the side walls of the backhoe bucket one opposite the other. FIG. 1 shows a trencher, a bucket supports the rear of the ground, side view; FIG. 2 is the same, rear view during the unloading of a block of soil; in fig. 3 - hydroscaller in the first embodiment; in fig. 4 is a cross section of ATA in FIG. 3; in fig. 5 shows a hydro splitting device according to the second embodiment of FIG. 6 is a section BB in FIG. 5. The trencher includes a base machine 1, on which a gearbox 2 is installed, designed to transfer torque from the engine of the base gashina 1 to the driving axle of the bar operating members (bars 3. The bar has a fixture for removing loose soil in the form of the right - and left-turn screw augers 4. The screws and leading axis of bars 3 are connected by a chain transmission. The chains of bars 3 are equipped with cutting teeth. On the common driven shaft of bars 3 there is a rigidly fixed horizontal milling cutter 5, made in the form of diverging from Hoists of right- and left-turn augers with radially fixed teeth. Lifting-lowering. The method of bars 3 consists of two hydraulic cylinders 6. Working equipment - the back shovel is installed on the body of the base machine 1 by means of a turntable 7. Turning platform 7, boom 8, arm 9, bucket 10 of the return shovel are successively hinged to each other, they are equipped with power cylinders 11-13. The control panel of the trencher is duplicated in the cab 14 on the rotary plate 7. Inside the bucket capacity 10 reverse l stalemates formed in the shape of a parallelepiped, Oleg Zhegoyev Imek dimensions corresponding Prevsh1ak1schie soil block dimensions 15. Bucket 10 is provided with a backhoe mounted in its cavity gidroskalyvakmtsim mechanism. The hydraulic chipping mechanism in the first embodiment is made in the form of a hydraulic jack 16 installed in the rear part of the side wall of the backhoe bucket, and a vertical strap 17 installed in the front part of the opposite side wall. 9124 In the second embodiment, the hydro-splitting mechanism is made in the form of two groups of hydraulic jacks 18 with a wedge-shaped working surface, mounted with J front portions of the side walls of the bucket 10 of the backhoe underside one another. The trenching is done in the following order. The torque from the engine of base machine 1 through gear 2 is transmitted to the driving stars of bars 3, from them chains of bars. 3 driven sprockets and horizontal cutter 5, as well as chain gears to screws 4. The longitudinal feed of the whole machine is turned on. Hydraulic cylinders 6 are pressurized the working fluid their stocks are advanced. The bars 3 and the horizontal mill 5 are buried in the ground by the action of the rods of the hydraulic cylinders 6. cutting in the slot ground. The speeds of movement of the machine and the deepening of the working bodies are coordinated in such a way that the slit is cut by the cutter 5 linearly at a certain angle to the ground surface. Cutting a straight horizontal slit is necessary for the bucket 10 bucket 10 to be easily inserted into the slits in order to chop the block of soil 15 at the depth step. The backsplash bucket 10 is inserted into the gaps formed, in this case it gradually covers the rear part of the soil from the bottom and from the sides. To prevent the horizontal milling of 5 or bars 3, the pillars of the ground 15 are supported by the weight of the bucket 10. From the horizontal slit, cut by the horizontal milling cutter 5, the loose ground and shtyb are removed to the zone of the bars 3. The bars 3, provided with a tooth, cut vertical gaps at the same time, the shtyb are removed to the surface, and the screws 4, rotating, remove the torn soil for the dimensions of the trench. When the bars 3 and the horizontal cutter 5 reach the estimated position of the trenching digger determined by fny6Hm) i, their penetration into the soil under the influence of the hydraulic cylinders 6 stops. Subsequently, the gaps are cut into a constant profile. When filling the whole ground with 8590% of the length of the internal container of the bucket 10, the hydraulic fluid 16 is pressurized with working fluid, the working surfaces of the hydraulic jack 6 are swiveled and abut against the soil mass and the ground section cut. The ground is moved by the impact of the hydraulic jack 16, and then abuts against the vertical bar 17. The backsplash bucket 10 abuts against the side wall, on which the vertical bar 17 is installed, into the soil mass. Thus, two oppositely directed parallel forces act on the ground of the ground — the pressure force of the hydraulic jack 16 and the resistance force of the bar 17. These forces have a lever equal to the distance between the lines of their action. When the force with which the hydraulic jack 16 acts exceeds the bending strength of the ground pillar, the block of the ground breaks down. In the second embodiment, the bucket 10 is equipped with two groups (two in each) of the hydraulic jacks 18 having a wedge-shaped working surface. Cleavage of the soil block 15 occurs when the working surfaces of the hydraulic jacks 18 are wedged into the ground tube. In both cases, when the block of the soil 15 // /// 12 is in the rock, the bucket 10 is in a free hanging position with respect to the boom 8 in the huts. There is a breakdown of the lifting and lowering device of the backhoe. The bucket 10 with the soil block 15 is then lifted out of the trench and unloaded onto the curb into the Vehicle. After unloading, the bucket 10 is lowered into the trench, gradually, as it is cut, it is inserted into the slots, keeping the ground strip on the ground, preventing the horizontal cutter 5 and the bars 3 from wedging into the ground. In the formation of a pillar of soil of sufficient length, the operation of splitting and dredging of blocks of soil cyclically repeats. The machine is monitored and controlled from the cab 14 on the turntable 7. When digging a trench in thawed soil with hydrolysis, it is replaced with a conventional trencher and performs the work of a conventional excavator. The application of the proposed trencher will allow cutting trenches without the use of additional equipment and with higher productivity. Fy1.g

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Claims (2)

1. A trencher for frozen and dense soils, including a base machine with two bar working bodies installed on it, on the driven shaft of which 1 horizontal milling cutter, lifting and lowering · adaptation of bar working bodies, a device for removing loosened soil and a backhoe bucket with side walls and a control mechanism installed behind the bar working bodies in the direction of movement of the base machine, characterized in that, in order to increase productivity by tearing the entire rear of the soil from the array, the backhoe bucket is equipped with a hydraulic shearing mechanism installed in its cavity, made in the form of a hydraulic jack installed in the rear the side wall of the backhoe bucket, and a vertical bar mounted in front of the opposite side wall. 1162912. . 2. A trencher for frozen and dense soils, including a base machine with two bar working bodies installed on the driven shaft of which a horizontal cutter is placed, a lifting and lowering device of bar working bodies, a device for removing loose soil and a backhoe bucket with side shovels walls and control mechanism installed behind the bar working bodies in the direction of travel installed behind the bar working bodies in the direction of movement of the base machine, characterized in that, for the purpose of. eniya performance by separation of soil from the pillar array chips, provided with a backhoe bucket mounted in its cavity gidroskalyvayuschim mechanism made in the form of two groups of hydraulic jacks tapered working surface mounted in the front parts of the side walls Cove sha backhoe one another example TIV.