RU218276U1 - DEVICE FOR FILLING CRACKS AND JOINTS OF ASPHALT CONCRETE ROAD COVERING - Google Patents

Abstract

The utility model relates to road construction and is intended for filling cracks and seams in the road surface and can be used both in the construction and repair of roads. SUBSTANCE: device for filling cracks and joints in asphalt concrete pavement comprises a frame with wheels forming a trolley with a control handle, a working boiler mounted on the frame with a control rod for bitumen release damper, a gas cylinder with a reducer and a hose connected to a gas nozzle for heating the working boiler. The device is equipped with an additional external boiler, the walls of which are equidistant from the walls of the working boiler, in the additional external boiler there is a hole in which the nozzle of the gas nozzle is installed with the possibility of directing the flame to the guide sleeve with a damper installed on it. Both boilers are closed with a common lid, in which a groove is made for the draft of a mechanical bitumen agitator, the handle of which is hinged on the trolley control handle. On the opposite side of the control handle of the trolley, control rods for the damper and the smoothing iron are fixed, which are respectively connected to the damper and the iron. A thermometer is installed on the lid, the thermocouple of which is lowered into the working boiler. The wheels of the trolley are heat-resistant, the rear wheels are made of a larger diameter to reduce bitumen sticking to them.

Description

The utility model relates to road construction and is intended for filling cracks and seams in the road surface and can be used both in the construction and repair of roads.

A device for repairing pavement cracks is known (RF patent 2576695). The frame is provided with transverse guide rails, on which controlled carts are movably mounted: on the cart of the first guide there is a milling unit and a hose tip of an industrial vacuum cleaner connected to a litter bin created by the milling unit, which is fixedly located on the frame; on the trolley of the second guide there is an electric industrial hair dryer and a filler dispenser connected by a flexible pipeline to the filler hopper. On the frame there is a power plant with an internal combustion engine or a connector for connecting an external power supply, there is a control unit for wheels, trolleys, a milling machine, an industrial vacuum cleaner, an industrial dryer and a dispenser, and a unit for tracking the direction and speed of movement. The wheels on the frame of the device are made with an electric drive for movement and rotation.

The disadvantage of these devices is the lack of effectiveness of filling cracks and low quality, design complexity, inconvenience in operation and maintenance, as well as mobility restrictions.

A device for transporting, preparing, unloading and laying thermoplastic materials (patent RU 55378 U1) is known, which is a self-propelled chassis driven by an engine, a heating unit installed on the chassis in the form of a welded frame with a thermally insulated casing, in which four containers are installed in series, two loading, conditioning and finished mastic, interconnected by pipelines. In the last two, agitators with electric drives are installed, and a pumping device is installed in the conditioning tank. The tanks are equipped with temperature sensors, electric heaters, which are located inside the walls of four tanks and in the bottom part of all tanks, including the capacity of the pouring cart for distributing and laying thermoplastic material, as well as in the drain pipe of the finished mastic tank. There is a heating control and monitoring unit that is connected to all electric heaters and to the power source. The capacity of the pouring cart is thermally insulated, electrically heated, has a body, is equipped with a stirrer and an unloading device with electric drives, a thermal sensor, a nozzle and a heated horseshoe-shaped smoothing element that surrounds the nozzle and is controlled by a lever located at the handle of the pouring cart connected to the heating control and monitoring unit. stranded flexible cable. Inside the two loading tanks, T-shaped metal elements are installed in the center to their middle, with electric heaters placed inside them. The placement of all electric heaters inside the walls of four tanks and in the bottom part of all tanks, including the tank placed on the pouring cart, as well as in the drain pipe of the finished mastic tank, is made by casting.

The disadvantages of the device are the large mass and complexity, high labor intensity in maintenance.

A known installation for filling joints (patent RU 16507 U1), containing a frame, a boiler, a fuel apparatus, a mechanism for supplying heated material and an apparatus for filling joints with a nozzle and a locking device, in which the apparatus for filling joints is made in the form of a manual pourer, the nozzles of which are flexible is connected by sleeves to a pump immersed in the boiler, equipped with a hydraulic motor, and to the cavity of the boiler, located above the level of its filling, while at least on one wall of the boiler, on its outer side, there is a pocket with hooks and closing flaps for placement and heating manual filler.

The disadvantages of this design include the increased mass of the device and the complexity of the design.

A known installation for pouring expansion joints of hard airfield and road pavements (patent RU 183270 U1), containing a container with a heater, a lid in the upper part and a feed and dosing mechanism for bitumen-polymer composite in the lower part, where the container is made of non-magnetic material, at least , with two parallel opposite walls and is equipped with a magnetic system consisting of two permanent magnets installed opposite to each other on the outer side of the parallel walls of the container and connected by a steel magnetic circuit. The device acts on the bitumen-polymer composition with a constant magnetic field to improve their physical and mechanical characteristics due to the reorientation and ordering of the polymer macromolecules.

The disadvantages of this design include the complexity of the design, reduced mobility and the need to connect a current source.

Closest to the claimed device is a device for filling cracks and joints in asphalt concrete pavement (patent RU 2279502 C1), which contains a frame, a boiler mounted on it with a lever for opening the damper for bitumen release and a stirrer with a removable handle, a gas cylinder with a gearbox and gas burners boiler heating. The frame additionally has a control lever with a slide in the form of a U-shaped frame with two travel stops at its ends, the front of which is installed on the transverse wall of the slide, which has a cutout in the lower part to give the seam an optimal shape, and the rear travel stop is installed on one of longitudinal walls of the slide. Expanders are placed along the longitudinal walls from above. The control lever consists of a handle, two crossbars with sockets for installing the burner and is connected to the slide by a non-rotary swivel joint.

The disadvantages of this design include low heat transfer efficiency, maintenance safety requirements, design complexity, and reduced mobility.

The objective of the utility model is to increase the efficiency of heat transfer and minimize energy costs by controlling the heating temperature of the bitumen before pouring.

This task is achieved in that the device for filling cracks and joints in asphalt concrete pavement contains a frame with wheels forming a trolley with a control handle, a working boiler mounted on the frame with a control rod for bitumen release damper, a gas cylinder with a reducer and a hose connected to a gas nozzle heating of the working boiler, characterized in that it is equipped with an additional external boiler, the walls of which are equidistant from the walls of the working boiler; are closed with a common cover, in which a groove is made for the rod of a mechanical bitumen agitator, the handle of which is hinged on the trolley control handle, and on the opposite side of the trolley control handle there are control rods for the damper and smoothing iron, which are respectively connected to the damper and the iron, a thermometer is installed on the cover , the thermocouple of which is lowered into the working boiler, the wheels of the trolley are heat-resistant, the rear wheels are made of a larger diameter to reduce bitumen sticking to them.

Heating in the working boiler is carried out not directly, but through the wall of the working boiler and the air jacket formed between the working and additional external boilers, which retains heat and eliminates bitumen burning. Burning is especially critical, because. it leads to a significant decrease in the performance of bitumen. Instead of a conventional gas-air burner, a single-circuit gas nozzle is used, which allows for uniform heating of the bitumen in the working boiler. The absence of an open flame, since the gas nozzle is located in an isolated chamber, allows the device to be used at facilities with increased fire safety requirements.

The thermometer allows you to control the temperature of the bitumen in the working boiler and avoid overheating, which significantly reduces the performance of the bitumen.

The mechanical agitator handle is mounted on the trolley control handle, which is convenient for one operator to operate. The unit does not require special qualifications of the operating personnel during operation, is easily transported and allows significant savings in the materials used.

On fig. Figure 1 shows a general view of the device, Figure 2 is a top view.

The device consists of a welded frame 1, on which a working boiler 2 and an additional external boiler 3 are fixed, the walls of which are equidistant from the walls of the working boiler 2. Both boilers are connected by a common cover 4. In the additional external boiler 3 there is a hole for installing the nozzle of the gas nozzle 5, the hole located so that the flame from the nozzle of the gas nozzle 5 was directed to the guide sleeve 6 and the damper 7. In the cover 4 there is a groove of the mechanical agitator 8, the handle 9 of which is hinged on the trolley control handle 10. On the opposite side of the trolley control handle 10, the rods are fixed control of the damper 11 and the smoothing iron 12. The control rod of the damper 11 is connected to the damper 7, which is mounted on the guide sleeve 6. The control rod of the smoothing iron 12 is connected to the iron 13.

On the cover 4 there is a thermometer 14, the thermocouple of which is lowered into the working boiler 2 (conditionally not shown). Frame 1 is equipped with four heat-resistant wheels, the rear wheels are made of a larger diameter to reduce bitumen sticking to them. A gas cylinder 17 with a reducer 18 and a gas hose 19 is installed on the welded frame 1, which is connected to the gas nozzle 5.

The device works as follows. Cylinder 17 with liquefied gas is installed in a holder (conditionally not shown), a reducer 18 is connected to it, a gas hose 19 connected to a gas nozzle 5. A working boiler 2, mounted on a frame 1, is loaded with pieces of solid bituminous material of various sizes, which, when started, the devices are heated by heat transferred from the walls of the working boiler 2. For uniform heating, the device is provided with mechanical agitator 8 rods, with the help of which bitumen is mixed by the operator through the handle 9 during heating. The readiness of the bitumen for pouring is determined by the temperature reading on the thermometer 14. The operator opens and closes the damper 7 with the help of the damper control rod 11, thereby regulating the intensity of the bitumen supply, which flows by gravity along the guide sleeve 6 and the open damper 7 into the iron 13, which descends into working position by the control rod of the smoothing iron 12 and, sliding along the plane of the road surface, smoothes the seam. The unit is moved manually using the trolley control handle 10.

Claims (1)

A device for filling cracks and joints in asphalt concrete pavement, comprising a frame with wheels forming a trolley with a control handle, a working boiler mounted on the frame with a control rod for bitumen release damper, a gas cylinder with a reducer and a hose connected to a gas nozzle for heating the working boiler, different by the fact that it is equipped with an additional external boiler, the walls of which are equidistant from the walls of the working boiler; which has a slot for the rod of a mechanical bitumen agitator, the handle of which is hinged on the trolley control handle, and on the opposite side of the trolley control handle there are control rods for the damper and smoothing iron, which are respectively connected to the damper and the iron, a thermometer is installed on the cover, the thermocouple of which is lowered into working boiler, trolley wheels are heat-resistant, the rear wheels are made of a larger diameter to reduce bitumen sticking to them.

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