RU176623U1 - DEVICE FOR TRANSPORT AND OVERLOAD OF ASPHALT CONCRETE MIXTURES - Google Patents

Abstract

The utility model relates to the field of road construction and is intended for transportation and unloading of hot asphalt mixtures from the place of their manufacture to the place of laying. The utility model provides a reduction in the temperature and fractional segregation of asphalt mixtures during their transportation, as well as reloading from an all-metal platform to the paver hopper. The use of a removable overload anti-segregation device ensures uniformity of the asphalt-concrete mixture, eliminates temperature and fractional segregation due to the rotation of the unloading and mixing augers during its overload, as well as intensive overloading of the mixture due to the operation of both augers in unloading mode. Thus, the application of the utility model ensures evenness and uniformity of the road surface. This result is achieved by the use of a removable overload anti-segregation device at the rear of the all-metal platform, which is fixed with two rear mounting brackets and two stops resting on the upper upper strapping, while the removable overload anti-segregation device has two sections, each of which includes an unloading and mixing augers with a planetary gearbox and a hydraulic motor connected to the hydraulic system of the platform lifting mechanism. 3 ill.

Description

The device relates to the field of road construction, is intended for transportation and elimination of segregation of asphalt mixtures during their overload.

There are various technical solutions that ensure the transportation, unloading and transshipment of asphalt mixtures: a device for transporting and laying thermoplastic materials [US Pat. 2046875 Russian Federation, IPC E01C 19/08. Kuznetsov M.M., Melik-Bagdasarov M.S.]; device for transporting, preparing, unloading and stacking thermoplastic materials [US Pat. 2141549 Russian Federation, IPC E01C 19/08, E01C 19/46. Kuznetsov M.M., Melik-Bagdasarov M.S.]; device for transportation and unloading of asphalt mixtures [US Pat. 108048 Russian Federation, IPC E01C 19/08. Ivanov V.I., Poteryaev I.K.]; device for transporting and unloading thermoplastic materials based on the KamAZ 6520 automobile [KamAZ automobile operating manual 43253, 53229, 55111, 65115. - Naberezhnye Chelny, 2003], combined dump truck and spreader apparatus [Pat. 6881022 United States, Int. Cl. B60P 1/36. Richard L. Feller], spreader hopper for dump truck [Pat. 3552659 United States, Int. Cl. E01C 19/20, Edward T. Meyer, Shaker Heights]. However, the listed devices have the following disadvantages: insufficiently effective reduction of the segregation of the asphalt mix when they are reloaded from the all-metal body into the asphalt paver’s hopper, rather complicated device design, the need to change the vehicle’s (TS) design, a significant reduction in the vehicle’s load capacity, and significant costs for the conversion of the vehicle platform.

A technical solution is also known - desegregation system [Pat. 7785034 United States, Int. B2, William A. Hood, Tate Huizer], comprising an open top hopper through which a hot asphalt mix enters, two augers that rotate by a reversible hydraulic motor that changes the direction of rotation of the augers.

The main disadvantages of this technical solution are: the ability to effectively mix the asphalt mixture only if the horizontal axis of rotation of the screws. Accordingly, when lifting the body, the device becomes ineffective.

Of the known technical solutions, the closest in technical essence to the claimed object is a device for transporting and unloading thermoplastic materials [Pat. 2406793 Russian Federation, IPC E01C 19/08, B60P 7/04. Ivanov V.I., Poteryaev I.K.].

The device comprises a self-propelled chassis, an all-metal platform welded with a protective peak, heated by the exhaust gases of an internal combustion engine, which has a platform lifting mechanism and an opening rear side with a locking mechanism, the platform has a tarpaulin tarpaulin treated with organosilicon fluid, mounted on the platform on a frame formed by a visor , two brackets-contours, outer upper strapping, lower longitudinal beams, front struts of the side sides and rear with a platform beam, while the front struts of the side boards have windows for supplying exhaust gases under the awning, and the tension tarpaulin has eyelets through which two cables are stretched from the center of the rear on the left and right sides, as well as two cables from top to bottom on the front pillars left and right side boards through hooks, the tension of which is carried out by two tension mechanisms.

The main disadvantage of the device for transporting and unloading thermoplastic materials is: the transportation of asphalt mix leads to the formation of temperature and fractional segregation of the mixture.

The objective of the utility model is to eliminate these drawbacks by using a removable overload anti-segregation device in the back of the platform of the base machine, which is fixed with two rear mounting brackets and two stops resting on the upper upper strapping, and the removable overload anti-segregation device has two sections, each of which includes unloading and mixing screws with planetary drive from a hydraulic motor connected to the hydraulic system of the mechanism a platform, and a hatch with an opening lid for unloading the asphalt mix.

A device for transporting and handling asphalt mixtures reduces fractional and temperature segregation of the asphalt mixture when it is unloaded into the receiving hopper of the paver.

The specified result is achieved by the fact that in the proposed device according to the utility model, a removable overload antisegregation device is installed in the rear part of the all-metal platform, which is fixed using two brackets for fastening the rear side and two resting on the upper outer strapping of the stops, while the removable overload antisegregation device has two sections , each of which includes two augers driven by a hydraulic motor and planetary gears, while the hydraulic motor is connected to idrosystem of the platform lifting mechanism, as well as a hatch with an opening lid for unloading the asphalt mix.

The utility model is illustrated by drawings, where figure 1 shows the proposed device for transportation and handling of asphalt mixtures, figure 2 shows a removable overload anti-segregation device with two sections, and figure 3 shows the right section of a removable overload anti-segregation device.

A device for transporting and handling asphalt mixtures contains (Fig. 1) a base machine 1, awning 2, an all-metal welded platform 3, on which a removable overload anti-segregation device 4 is attached using two fasteners 5 of the rear side and two protruding outward in the rear of the all-metal welded platform brackets 6 (Fig. 2), hatch 7 (Fig. 1) for unloading the asphalt mixture, cover 8, mixing screw 9 (Fig. 2) and unloading screw 10, located in the common housing 11, planetary gearbox 12 driven through the clutch in 13 of the hydraulic motor 14 connected to a hydraulic platform lift mechanism. The left and right sections of the removable overload anti-segregation device are attached with the support 15 (Fig. 1) to the body of the overload anti-segregation device.

The device operates as follows.

When transporting the asphalt mixture to the rear of the all-metal welded platform (Fig. 1) of the vehicle 3, a removable overload anti-segregation device 4 is installed. A removable overload anti-segregation device is mounted using two fasteners 5 and two outwardly protruding brackets 6 (Fig. 2). The cover 8 of the hatch 7 (Fig. 1) is closed by standard mechanisms for locking the dump truck. After transporting the asphalt mixture from the place of its manufacture to the place of laying in the all-metal welded platform 3, the driver loosens and loosens the tent tension cables, hooks and fastens it in the upper part from the inside of the front side, then turns on the hydraulic system of the platform lifting mechanism and the screw rotation motor.

When transporting asphalt concrete mixture over long distances, which contribute to the formation of fractional and temperature segregation when it is reloaded into the hopper of the paver, the “unloading and mixing” mode is used. In this mode, the carrier 16 (Fig. 3) of the planetary gear is braked by the brake 19, the sun gear 17 and the epicyclic 18 rotate freely by turning off the locking clutches 20 and 21, and in this mode the unloading auger 10 and the mixing auger 9 rotate in opposite directions. The asphalt mixture is discharged by a discharge screw from the receiving window 22 to the hatch for unloading 7 (Fig. 1). The mixing auger returns part of the mixture in the opposite direction, thereby ensuring mixing efficiency. The mixing efficiency is also ensured by changing the rotational speed of the screws to achieve the condition of filling the case of the overloading device with a mixture in height equal to 2/3 of the diameter of the general case.

When transporting asphalt concrete mixture over short distances, at which formation of fractional and temperature segregation practically does not occur, the “fast overload” mode is used. In this mode, the brake 19 (Fig. 3) is unlocked, and the clutches 20 and 21 are closed, respectively, the sun gear 17 with the unloading auger 10, as well as the epicyclic 18 with the mixing auger 9 (Fig. 2) rotate in one direction, providing an increase in overload performance the asphalt mixture in the asphalt paver hopper, epicycle 18 (FIG. 3) rotate together. In this mode, the mixing auger 9 and the unloading auger 10 rotate in one direction.

By using the work of the friction elements and the brake in the slip mode, the necessary rotational speed of the screws can be provided in order to increase their efficiency.

The effectiveness of mixing the asphalt mixture is ensured by a constant level of filling of a removable overload anti-segregation device, regardless of the angle of elevation of the all-metal platform.

The use of a device for transportation and unloading of asphalt concrete mixtures will ensure uniformity of the mixture discharged from the platform, eliminate temperature and fractional segregation. Thus, the use of a device for the transportation and unloading of asphalt concrete mixtures will ensure evenness and uniformity of the road surface, it will gain the same density over the entire area and, as a result, its durability will increase, the guaranteed turnaround time will increase, and the volume of road maintenance work will be reduced.

Claims (1)

A device for transporting and unloading asphalt mixtures containing a self-propelled chassis, an all-metal platform welded with a protective visor, characterized in that a removable overload anti-segregation device is installed at the rear of the platform, which is fixed to the rear of the platform using two brackets for fastening the rear side and two protruding outwards in the back of the platform of the brackets, while the overload anti-segregation device has two sections, each of which includes unloading and emeshivayuschy augers with planetary gear drive by a hydraulic motor, connectable to a hydraulic platform lift mechanism, and the hatch cover for discharging the mixture.

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