RU2740596C1 - Unit for laying paving slabs - Google Patents

Abstract

FIELD: machine building.

SUBSTANCE: invention relates to devices for laying paving slabs. Sidewalk tile installation unit comprises a frame, a motor with hydraulic pumps, extension table crossbars enter the crossarms of the frame. Rear roller, three brushes, posts, plows and middle dump are attached to the frame. On the frame there installed are: inclined roller table with upper roll table, power plant with running gear drive hydraulic pump and hydraulic drive of other structure elements drive, rotary column, elevator, rear bin, lower roller table, displacement hydraulic cylinders, braces. Two hydraulic control cylinders of the front bunker, two hydraulic control cylinders of the bunker, two hydraulic control cylinders of the front blade, two control hydraulic cylinders are connected to the front bunker. By means of two parallelogram mechanisms front roller and two wheels, front dump, and milling auger are connected to front bunker. Boom fixation hydraulic cylinder and brackets are installed on rotary column, boom base, boom control hydraulic cylinder and winch are mounted. Boom includes boom. Hydraulic control cylinders of support rollers and levers are connected to the frame and extension frame, and support rollers are installed on them. Support rollers enclose two tracks. Following components are movably attached to the frame: middle roller, two hydraulic control cylinders of the middle roller, hydraulic control cylinders of the middle blade and pushers. Axes with transporter frame located on them are inserted into frame brackets. Conveyor frame also rests on the rod. Shelves are attached to conveyor belt and rubber stoppers are connected. Brushes and brushes control hydro-cylinders are connected to the frame from below. Rear roller guides and rear roller control hydraulic cylinders are attached to the frame behind.

EFFECT: use of the proposed unit for laying paving slabs will make it possible to carry out a complex of works when laying sidewalk tiles, which increases labor productivity, improves quality of laying tiles, reduces costs and reduces time for arrangement of sidewalks and squares.

1 cl, 25 dwg

Description

The invention relates to a device for laying paving slabs.

It can be used in construction for paving, significantly increasing the speed of creating sidewalk.

The process of installing the tile is long and painstaking. Especially if you need to pave a large rectangular area: streets, alleys, squares, parking lots, squares, floor coverings of the local area. To date, modern equipment - a machine for laying paving slabs - is able to facilitate the work of builders.

Known machine for laying paving slabs (ed. St. SU No. 252384, IPC E01C, publ. 09/22/1969, BI No. 29). The machine includes a self-propelled chassis on which a blade is mounted, a compacting roller, a device for lifting and installing a container with tiles, a laying working body made with a U-shaped swing arm and a roller.

Known machine for laying paving slabs and curly paving elements (ed. St. SU No. 1413173, IPC E01C 19/52, publ. 07/30/1988, BI No. 28). The machine contains a base chassis, with a hinged feed device with a turning mechanism, made in the form of a platform installed in front of the base chassis with a tile feed window and a tray, and compacting rollers.

These inventions relate to mechanized laying of flat road products on a pre-prepared base during the construction of prefabricated pavements, sidewalks, roads, squares.

The disadvantage of structures is the impossibility of performing a complex of works when laying paving slabs.

Known machine for laying paving slabs (ed. St. SU No. 228707, IPC E01C 23/03, publ. 06.02.1969), taken as a prototype.

Paving slab paving machine, includes frame, motor with hydraulic pump, knife, rollers, feed distributor and compactor. The machine is made with a distribution device having a faceted drum with cells on its surface, in dimensions corresponding to the dimensions of the tiles being laid. In order to keep the tiles in the cells of the switchgear, the drum of the latter on a part of the perimeter is covered by a conveyor belt mounted on non-driven rollers.

The disadvantage of the design is also the impossibility of performing a set of works when laying paving slabs.

The objective of the invention is to create a unit for laying paving slabs of continuous action, carrying out the whole range of works related to laying paving slabs, namely: clearing and leveling the underlying layer, forming and compaction of the sand base, loading containers with tiles, laying tiles, filling with sand the cracks between tiles, removing excess sand from the tiles and leveling the surface of the laid tiles.

The problem is solved by the fact that the proposed unit for laying paving slabs containing a frame, an engine with hydraulic pumps. Distinctive features of the claimed invention are that:

the traverses of the frame include traverses of the sliding frame, while the sliding frame relative to the frame is moved by the hydraulic cylinders for controlling the sliding frame, in addition, the rear roller, three brushes, stands, plows, the middle blade are attached to the frame, and a crossbar is welded to two stands,

on the frame are installed: an inclined roller conveyor with an upper roller conveyor, a power plant with a hydraulic pump for driving the chassis and a hydraulic pump for driving other structural elements, a rotary column, an elevator, a rear hopper, a lower roller conveyor, hydraulic cylinders for movement, braces, while a rear auger is attached to the elevator, resting on the rear hopper, to which an apron is attached from below and two hydraulic cylinders for controlling the rear hopper gate valve are attached,

attached to the front bunker: two hydraulic cylinders for controlling the gate of the front bunker, two hydraulic cylinders for controlling the bunker, two hydraulic cylinders for controlling the front blade, two hydraulic cylinders for controlling the cutter-auger, and by means of two parallelogram mechanisms - the front roller and two wheels, front blade, cutter-auger, when the front auger is located in the front hopper,

a hydraulic cylinder for fixing the boom and brackets is installed on the swivel column, the boom base, the hydraulic cylinder for the boom control, the winch are mounted, while the boom is inserted into the boom base, which is extended by the hydraulic motor for moving the boom, the winch by means of a rope encircling the movable block cage and the fixed block cage controls the gripping, and on the edges of the gripper there are gripper cylinders that control the clamps,

hydraulic cylinders for controlling the support rollers and leashes are attached to the frame and the retractable frame, they are equipped with support rollers that surround two tracks, the frame is also movably attached: the middle roller, two hydraulic cylinders for controlling the middle roller, hydraulic cylinders for controlling the middle blade and pushers,

in the frame brackets, to which two clamps with balls are attached, axles with disks located on them, bearings and a conveyor frame are inserted, which also rests on the bar, the position of which is changed by the hydraulic cylinder of the bar control, a drum is installed on the bearings, covered by the conveyor belt, and to it are attached shelves and rubberized stops are attached, while the tension of the conveyor belt is carried out by two tensioning hydraulic cylinders, and its drive is carried out by a synchronizing electric motor,

the upper rail is welded to the posts, and the lower rail is welded to the frame, and the upper rollers, driven by two electric motor reducers, rest on the upper rail, and the lower rollers rest on the lower rail, while the cab in which the unit is installed rests on the upper rollers and lower rollers control and signaling,

from the bottom to the frame are attached the leads of the brushes and hydraulic cylinders for controlling the brushes, and at the rear - the leads of the rear roller and hydraulic cylinders for controlling the rear roller;

Also attached to the frame are: the hydraulic pneumatic accumulator of the rear roller, the hydraulic pneumatic accumulator of the middle roller, the hydraulic pneumatic accumulator of the front blade and the hydraulic pneumatic accumulator of the cutter-auger, and the hydraulic motor-reducers drive: the cutter-auger, the front auger, the rear auger with the elevator, the winch, the swing.

The auger-cutter and the front blade clean and level the subbase, the front hopper, the front roller, the middle blade and the middle roller form and compact the sandy base, the boom and the winch load containers with tiles, the conveyor belt is laying the tiles, the rear hopper is filling with sand gaps between tiles, brushes to remove excess sand from tiles, and a rear roller to level the surface of laid tiles. At the same time, it is possible to adjust the impact force: the auger cutter and the front blade on the underlying layer, the middle roller on the sandy base, the rear roller on the tiles. The position of the frame can be adjusted for height, roll and trim depending on the terrain.

New essential features:

- the traverses of the frame include traverses of the sliding frame;

- the sliding frame is moved relative to the frame by the hydraulic cylinders for controlling the sliding frame;

- attached to the frame: rear roller, three brushes, stands, plows, middle blade;

- a crossbar is welded to two posts;

- mounted on the frame: an inclined roller conveyor with an upper roller conveyor, a power plant with a hydraulic pump for driving the chassis and a hydraulic pump for driving other structural elements, a rotary column, an elevator, a rear hopper, a lower roller conveyor, movement cylinders, braces;

- a rear auger is attached to the elevator, which rests on the rear hopper;

- an apron is attached to the bottom of the rear bunker and two hydraulic cylinders for controlling the rear bunker gate valve are attached;

- attached to the front bunker: two hydraulic cylinders for controlling the front bunker gate valve, two hydraulic cylinders for controlling the bunker, two hydraulic cylinders for controlling the front blade, two hydraulic cylinders for controlling the cutter-auger;

- by means of two parallelogram mechanisms connected to the front hopper: a front roller and two wheels, a front dump, a milling auger;

- the front auger is located in the front hopper;

- a hydraulic cylinder for fixing the boom and brackets are installed on the swivel column;

- the boom base, the boom control hydraulic cylinder, the winch are mounted on the swing column;

- the boom is inserted into the base of the boom, extended by the hydraulic motor for moving the boom;

- the winch controls the gripping by means of a rope that surrounds the movable block cage and the fixed block cage;

- on the edges of the gripper there are gripper hydraulic cylinders that control the clamps;

- hydraulic cylinders for controlling the support rollers and leashes are attached to the frame and the sliding frame;

- track rollers are installed on leashes, which encircle two caterpillars;

- movably attached to the frame: the middle roller, two hydraulic cylinders for controlling the middle roller, hydraulic cylinders for controlling the middle blade and pushers;

- two clamps with balls are attached to the frame brackets;

- axles with disks, bearings and conveyor frame located on them are inserted into the frame brackets, which also rests on the bar, the position of which is changed by the hydraulic cylinder of the bar control;

- a drum is installed on the bearings;

- the belt of the conveyor covers this drum and two other drums;

- shelves are attached to the conveyor belt and rubberized stops are attached;

- tension of the conveyor belt is carried out by two tensioning hydraulic cylinders;

- the conveyor belt is driven by a synchronizing electric motor;

- the upper guide is welded to the posts, and the lower guide is welded to the frame;

- on the upper guide the upper rollers are supported, driven by two electric motor-reducers, and on the lower guide - the lower rollers;

- the cab, in which the control and signaling unit is installed, rests on the upper rollers and lower rollers;

- from the bottom to the frame are attached the leads of the brushes and hydraulic cylinders for controlling the brushes;

- rear roller leashes and rear roller control hydraulic cylinders are attached to the frame at the rear;

- attached to the frame: the hydraulic pneumatic accumulator of the rear roller, the hydraulic pneumatic accumulator of the middle roller, the hydraulic pneumatic accumulator of the front blade and the hydraulic pneumatic accumulator of the cutter-auger;

- hydraulic motor-reducers drive: auger cutters, front auger, rear auger with an elevator, winch, boom rotation, brushes, caterpillars.

The totality of known and distinctive essential features of the claimed unit is not known from the prior art and does not follow from it in an obvious way.

FIG. 1 shows a diagram of the unit, left side view; in fig. 2 is a diagram of the unit, top view; in fig. 3 - unit diagram, right side view; in fig. 4 - view A; in fig. 5 - view B; in fig. 6 - view B; in fig. 7 is a diagram of the unit, rear view; in fig. 8 - section Г-Г; in fig. 9 - section E-E; in fig. 10 - section D-D; in fig. 11 - elements of hydraulic systems and automation, left side view; in fig. 12 - elements of hydraulic systems, top view; in fig. 13 is a diagram of work with an extended retractable frame; in fig. 14 is a diagram of work on a transverse slope; in fig. 15 is a diagram of work on a longitudinal slope; in fig. 16 is a diagram of loading sand into the front hopper; in fig. 17 is a diagram of transporting sand from the front hopper to the rear hopper; in fig. 18 and FIG. 19 - diagrams of loading a container with tiles on the lower roller conveyor; in fig. 20 is a diagram of the movement of a container with tiles along the lower roller table to the plate and its rise along an inclined roller table; in fig. 21 - a scheme for laying tiles; in fig. 22 is a diagram of the rotation of the brushes; in fig. 23 is a diagram of the removal of the inclined roller table a by the upper roller table; in fig. 24 is a diagram of removing the conveyor from the frame; in fig. 25 is a diagram of the lifting of the conveyor.

The traverse of the frame 47 (Fig. 2) includes the traverse of the retractable frame 2 (Fig. 1, 2, 10). The sliding frame is moved relative to the frame by hydraulic cylinders for controlling the sliding frame 80 (Fig. 10). Attached to the frame (Fig. 1, 2, 3): rear roller 1, three brushes 3, racks 7, plows 9, middle blade 10. A crossbar 31 is welded to two racks. On the frame are installed: inclined roller conveyor 6 (Fig. 1, 2) with an upper roller conveyor 37, a power plant 26 with a hydraulic pump to drive the chassis 27 and a hydraulic pump 43 (Fig. 2) to drive other structural elements, a rotary column 29 (Figs. 1, 2), an elevator 33 (Figs. 1, 2, 3 ), the rear hopper 36, the lower roller table 39, hydraulic cylinders 40 (Fig. 2), braces 41. The rear auger 34 is attached to the elevator and rests on the rear hopper. The rear auger and the elevator are driven by a hydraulic motor-reducer 22 (Fig. 2). An apron 78 is attached to the bottom of the rear hopper (Fig. 6) and two hydraulic cylinders for controlling the valve of the rear hopper 77 are attached. To the front hopper 20 (Figs. 1, 2) are attached: two hydraulic cylinders for controlling the valve of the front hopper 12 (Fig. 1), two hydraulic cylinders bunker control 15, two hydraulic cylinders for front dump control 16 (Fig. 1, 2), two hydraulic cylinders for control of the cutter-auger 19. By means of two parallelogram mechanisms 13, the front roller 11 (Fig. 1, 8) and two wheels 14 are connected to the front hopper (Fig. 1, 2), the front dump 17, the auger cutter 18, driven by the hydraulic motor-reducer 22 (Fig. 2). In the front hopper, there is a front auger 42 driven by a hydraulic motor-reducer 22 (Fig. 1). The boom base 25 (Fig. 1, 2), the boom control hydraulic cylinder 28, the winch 30, driven by the hydraulic motor-reducer 22 (Fig. 2) are mounted on the rotary column. The boom base includes a boom 23 (Fig. 1, 2), which is extended by a hydraulic motor for moving the boom 24. Inside the rotary column (Fig. 3) there is a hydraulic motor-reducer of boom rotation 48. The winch is by means of a rope 51 encircling the movable block cage 49 and the fixed block cage 50 controls the grip 21 (FIGS. 1, 2, 4). At the edges of the grip there are gripper hydraulic cylinders 53 (Fig. 4) that control the latches 52. A hydraulic cylinder for fixing the boom 56 and brackets 55 are installed on the swing column. Hydraulic cylinders for controlling the support rollers 54 and levers 58 are attached to the frame and the retractable frame. (Fig. 1, 3), which encircle two caterpillars 57 (Fig. 4, 7). The frame is movably attached: the middle roller 8 (Fig. 1, 2), two hydraulic cylinders for controlling the middle roller 59 (Fig. 4), hydraulic cylinders for controlling the middle blade 60 and pushers 61. On the frame there is a plate 38 (Fig. 2, 5), which is moved by two hydraulic cylinders to control the plate 67 (Fig. 5). The lower roller table, the inclined roller table and the upper roller table contain rollers 68. Two loops 69 are welded to the inclined roller table. Axles 83 (Fig. 9) are inserted into the frame brackets (Fig. 9) with two disks 82 freely located on them (Figs. 1, 9), bearings 84 ( Fig. 9), as well as the frame of the conveyor 5. A drum 85 is mounted on the bearings. The belt of the conveyor 63 (Figs. 5, 9) covers this drum and two other drums. Shelves 62 are attached to the canvas and rubberized stops 65 are attached. To the frame brackets are attached two clamp 66, in the form of sectors, with balls 81 (Fig. 9). The conveyor belt is tensioned by two tensioning cylinders 64 (Fig. 5). The support of the conveyor frame is also a rod 44 (Fig. 2, 5), the position of which is changed by the hydraulic cylinder of the rod control 46. The drive of the conveyor belt is performed by a synchronizing electric motor 45 (Fig. 2). The upper guide 32 (Fig. 1, 6) is welded to the posts, and the lower guide 79 is welded to the frame (Fig. 6, 9). The top rollers 71 (Fig. 6, 7), driven by two electric motor-reducers 70, are supported on the upper guide, and the lower rollers 76 are supported on the lower guide. The cab 35 (Fig. 1, 2, 6, 7) is supported on the upper guide and the lower rollers. ). From the bottom to the frame are also attached brush drives 75 (Fig. 6) and hydraulic cylinders for controlling the brushes 74 of a circular shape. The brushes drive the hydraulic motors-reducers 22 (Fig. 2). The rear roller 73 (Fig. 6) and hydraulic cylinders for controlling the rear roller 72 are attached to the frame at the rear. On the left (along the course of the unit) a sensor 86 is installed on an inclined roller table, and a control and signaling unit 87 (BUS) (Fig. 11) is installed in the cab. The movement of the unit is provided by two hydraulic motor-gear drives of the caterpillar 88 (Fig. 12). A vibrator 89 is located under the plate. Attached to the frame are: the hydraulic pneumatic accumulator of the rear roller 90, the hydraulic pneumatic accumulator, the hydraulic pneumatic accumulator of the middle roller 91, the hydraulic pneumatic accumulator of the front blade 92 and the hydraulic pneumatic accumulator of the cutter-auger 93.

Before starting work, the operator sets: the initial pressure in the hydraulic pneumatic accumulators, the position of the cutter-auger by the hydraulic cylinder for controlling the cutter-auger, the position of the plows relative to the frame by moving in the slots "P" (Fig. 4), the position of the conveyor frame by moving in the slots "P" (Fig. 5 ) by means of the boom control hydraulic cylinder. Depending on the conditions of movement of the unit, he sets the position of the sliding frame relative to the frame (Fig. 13), for example, so as not to damage the curb "BK". The sliding frame can be pulled out of the frame by a distance "b" by means of the hydraulic cylinders for controlling the sliding frame (Fig. 10). Depending on the relief, the operator compensates for the slope of the terrain by an angle β (Fig. 14) or a trim by an angle α (Fig. 15) by means of the hydraulic cylinders for controlling the road wheels. The operator, by means of the boom control hydraulic cylinder, raises the boom (Fig. 16) and, through the bunker control hydraulic cylinders and parallelogram mechanisms, lowers the front bunker to load sand from the dump truck "C" into it. After loading, the operator, using the hopper control cylinders and parallelogram mechanisms, sets the front hopper to the height necessary to create the sand base of the desired thickness. Part of the sand by the front auger, the elevator and the rear auger, he moves from the front hopper to the rear hopper (Fig. 17). The container "K" with tiles can be loaded from the left side (along the course of the unit) from the body of the machine "M" (Fig. 18, a), from the ground (Fig. 18, b), from the right side (along the course of the unit) ( Fig. 18, c) to the lower roller table (Fig. 18, d), manipulating the boom. The gripper attached to the movable block cage is oriented relative to the container "K" so that when the rods are pulled in by the gripper hydraulic cylinders, the clamps enter from both sides into the holes of the container (I). The hydraulic motor-reducer of the boom rotation turns it so that the rod of the boom locking hydraulic cylinder enters the bracket (Fig. 18, d) (II), fixing the boom strictly perpendicular to the longitudinal axis of the unit (Fig. 19). Manipulating the boom by means of the boom control hydraulic cylinder, hydraulic motor for moving the boom and the winch, the container "K" is oriented so that the shutter “Zas” (Fig. 19) hooks onto the crossbar, and the side of the container where the shutter is located adjoins the racks. When the container is lowered onto the lower roller table, the flap remains on the crossbar, the container is lowered onto the lower roller table in the correct position: its open side is facing the inclined roller table. Then the rods of the gripping cylinders remove the retainers from the holes of the container (IV) (Fig. 18, d). The operator manually removes the damper from the crossbar. All roller tables have passive rollers, therefore, after installation on the lower roller table, the operator displaces the container "K" onto the plate (Fig. 20, a) by means of the hydraulic cylinders of movement. Then a reserve container "RK" is installed on the lower roller table. The axes of the hydraulic cylinders for controlling the plate are displaced relative to the transverse axis of the plate by a distance "c" (Fig. 5). The inclined roller conveyor is installed relative to the frame at an angle γ (Fig. 21) exceeding the static friction angle of the tile material. Therefore, when the working fluid is supplied to the cavity of the hydraulic cylinders for controlling the plate, they tilt the plate (Fig. 20, b) so that the container lies on an inclined roller table. Since the shutter is removed from the container, the "Pl" tiles (Fig. 21) are displaced, resting against the rollers of the inclined roller table. The upper row of tiles is shifted onto the rollers of the upper roller table until it stops against the shelf or the conveyor belt. By means of the control and signaling unit, the operator can set the operation in automatic or manual mode.

The operator supplies the working fluid to the hydraulic motor-reducers of the drive of the tracks, to the hydraulic motor-reducers of the drive of the brushes, the voltage to the synchronizing electric motor. If necessary, it supplies the working fluid from the hydraulic motor-reducer of the cutter-auger drive. The unit starts moving. The auger cutter (Fig. 1, 2) loosens the soil of the underlying layer and shifts it to the sides. The front blade cleans the bedding. The operator controls the flow of sand from the front hopper through a hydraulic cylinder to control the front hopper slide to create a base. The front roller, using part of the gravity of the front hopper and the sand located there, performs the primary compaction of the base, and the middle roller performs its secondary compaction. The operator changes the force of impact on the base of the middle roller by means of the hydraulic cylinder for controlling the middle roller (Fig. 4). The center blade, which can be repositioned with the center blade control cylinders, flattens the base after the front roller before the middle roller. The plows move the soil to the sides, level it, before the tracks pass. When the conveyor belt rotates (Fig. 21), the rows of tiles "Pl" slide along the upper roller table and alternately fall on the shelves. To ensure the guaranteed hit of the tiles on the shelves, the vibrator gives impulses to the pressure of the working fluid in the cavity of the hydraulic cylinders of the plate control, creating vibration of the plate with the container located on it. Rubberized stops separate the rows of tiles entering the shelves and support the shelves. The movement of the conveyor web is mainly provided by the gravity of the tiles entering the branch facing the inclined roller table. The conveyor belt on the lower branch moves at an angle ε to the frame. The synchronizing electric motor provides such an angular speed ω of the upper drum, at which the linear speed of the conveyor belt would correspond to the speed of the unit ν and would be ν / cos ε. At such a linear speed of the conveyor belt, the flanges of the lower branch come out of the gap between the tiles without displacing the tiles. The clamps are in the form of sectors covering the angle δ. When the next row of tiles is within the angle δ, the clamps on both sides (Fig. 9) by means of balls act on the disks, which are loosely fitted on the axes with a gap. The disks, moving, clamp the stops, and the stops squeeze the tiles, acting on their ends with a force F. When the row of tiles is outside the limits of the angle δ (Fig. 21), the impact of the clamps on the discs, the discs on the stops, and the stops on the row of tiles stop. A row of tiles remains on a sandy base. There remains a distance between the tiles equal to the thickness of the shelves along the unit and equal to the thickness of the stops along the width. To fill these gaps, sand is fed to the tiles from the rear hopper. By means of the hydraulic cylinder for controlling the gate valve of the rear hopper (Fig. 6), the operator regulates the amount of sand coming from the rear hopper. The apron serves to cushion the impact of sand flow on the tiles. The brushes (Fig. 22) sweep sand from the surfaces of the tiles into the gaps between them. The rear roller levels the tiles. The sensor, on the one hand, counts the movement of the rows of top-level tiles from the container to the upper roller conveyor. When the upper rows of tiles move from the container to the upper roller table, a signal from the sensor is sent to the BUS. The BUSS gives the command to supply the working fluid to the hydraulic cylinders of the plate control to move the container with the plates along the inclined roller table. On the other hand, the sensor records the movement of the slab along the inclined roller table at one level equal to the thickness of the slab. The supply of working fluid to the plate control hydraulic cylinders is stopped. Rows of tiles "Pl" of the next level slide along the upper roller table and alternately fall onto the shelves. When the rows of tiles located in the container at the lower level run out (Fig. 20, c), the unit is stopped. By means of gripping, an empty container is removed from the slab to the ground, the slab is returned to its initial position on the frame, the reserve container "RK" is moved onto it, another container is loaded onto the lower roller table and work continues.

By means of an electric motor-reducer, the operator can move the cab relative to the frame along the lower guide and the upper guide (Fig. 2). In the process of work, it can adjust the position of: the frame relative to the relief, the auger cutter relative to the front blade, the front blade relative to the front hopper, the front hopper relative to the frame, the middle blade relative to the frame, brushes relative to the frame. The operator can adjust the effort: impact on the underlying layer of the auger-cutter by changing the pressure in the hydraulic-pneumatic accumulator of the auger-cutter; impact on the underburden of the front dump, changing the pressure in the hydraulic accumulator of the front dump; impact on the sandy base of the middle roller, changing the pressure in the hydraulic pneumatic accumulator of the middle roller; impact on the tiles of the rear roller, changing the pressure in the hydro-pneumatic accumulator of the rear roller.

Since tiles can be of different shapes and sizes, there is a need to install a suitable conveyor belt with shelves and stops of the desired shape and size. To replace the conveyor belt with the gripper loops, the inclined roller table is removed from the unit together with the upper roller table (Fig. 23). By pulling in the rod of the rod control hydraulic cylinder (Fig. 24) from position V to position VI, the conveyor frame is removed from the groove of the frame bracket. The retractable part of the rod is fixed with a finger through the hole "O". By extending the rod of the rod control hydraulic cylinder (Fig. 25), the conveyor frame is first rotated from position VI, and then, by removing the finger from the rod, it is moved to position VII. By pulling in the tension cylinders rod to position VIII, the belt tension is released. The gripper is used to remove the conveyor belt from the conveyor frame and drums. The installation of another conveyor belt is carried out in the reverse order.

The new technical result is that the use of the proposed unit for laying paving slabs will make it possible to carry out a set of works when laying paving slabs, which helps to increase labor productivity, improve the quality of laying tiles, reduce costs and reduce the time for arranging sidewalks and squares.

Claims (10)

A unit for laying paving slabs containing a frame, an engine with hydraulic pumps, rollers, characterized in that the traverses of the frame include traverses of the sliding frame, while the sliding frame relative to the frame is moved by the hydraulic cylinders for controlling the sliding frame, in addition, the rear roller, three brushes, stands, plows, a middle blade are attached to the frame, and a crossbar is welded to two stands, on the frame are installed: an inclined roller conveyor with an upper roller conveyor, a power plant with a hydraulic pump for driving the chassis and a hydraulic pump for driving other structural elements, a rotary column, an elevator, a rear hopper, a lower roller conveyor, hydraulic cylinders for movement, braces, while a rear auger is attached to the elevator, resting on the rear hopper, to which an apron is attached from below and two hydraulic cylinders for controlling the rear hopper gate valve are attached, attached to the front bunker: two hydraulic cylinders for controlling the gate of the front bunker, two hydraulic cylinders for controlling the bunker, two hydraulic cylinders for controlling the front blade, two hydraulic cylinders for controlling the cutter-auger, and by means of two parallelogram mechanisms - the front roller and two wheels, front blade, cutter-auger, when the front auger is located in the front hopper, a hydraulic cylinder for fixing the boom and brackets is installed on the swivel column, the boom base, the hydraulic cylinder for the boom control, the winch are mounted, while the boom is inserted into the boom base, which is extended by the hydraulic motor for moving the boom, the winch by means of a rope encircling the movable block cage and the fixed block cage controls the gripping, and on the edges of the gripper there are gripper cylinders that control the clamps, hydraulic cylinders for controlling the support rollers and leashes are attached to the frame and the retractable frame, they are equipped with support rollers that surround two tracks, the frame is also movably attached: the middle roller, two hydraulic cylinders for controlling the middle roller, hydraulic cylinders for controlling the middle blade and pushers, in the frame brackets, to which two clamps with balls are attached, axles with disks located on them, bearings and a conveyor frame are inserted, which also rests on the bar, the position of which is changed by the hydraulic cylinder of the bar control, a drum is installed on the bearings, covered by the conveyor belt, and to it are attached shelves and rubberized stops are attached, while the tension of the conveyor belt is carried out by two tensioning hydraulic cylinders, and its drive is carried out by a synchronizing electric motor, the upper rail is welded to the posts, and the lower rail is welded to the frame, and the upper rollers, driven by two electric motor reducers, rest on the upper rail, and the lower rollers rest on the lower rail, while the cab in which the unit is installed rests on the upper rollers and lower rollers control and signaling, from the bottom to the frame are attached the leads of the brushes and hydraulic cylinders for controlling the brushes, and at the rear - the leads of the rear roller and hydraulic cylinders for controlling the rear roller; Also attached to the frame are: the hydraulic pneumatic accumulator of the rear roller, the hydraulic pneumatic accumulator of the middle roller, the hydraulic pneumatic accumulator of the front blade and the hydraulic pneumatic accumulator of the cutter-auger, and the hydraulic motor-reducers drive: the cutter-auger, the front auger, the rear auger with the elevator, the winch, the swing.

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