9results about How to "Improve paving quality" patented technology

The utility model discloses an asphalt mixture paver and an asphalt mixture paving system. The asphalt mixture paver comprises a vehicle body and a paving mechanism, the vehicle body is provided with a cab and an asphalt mixture storage box, and the paving mechanism comprises a first spatula, a second spatula and a compression roller which are sequentially arranged in the moving direction of the vehicle body; the first spatula is an inclined spatula or a step-shaped spatula; the second spatula is a tooth-shaped spatula or a wave-shaped spatula; the bottom height of the first spatula > the bottom height of the second spatula > the bottom height of the compression roller; the paving mechanism further comprises a supporting plate for fixing the first spatula, the second spatula and the pressing roller, and the supporting plate is connected with the vehicle body. The asphalt mixture paver disclosed by the utility model is very reasonable in structure and configuration, and can effectively improve the paving quality and efficiency of an asphalt pavement.

The invention relates to a small laser concrete paver and an elevation setting method thereof. The small laser concrete paver comprises a vehicle body, a leveling mechanism, a control unit and an operating console are arranged on the upper part of the vehicle body, a rotating mechanism is arranged on the lower part of the leveling mechanism, a telescopic mechanism is arranged on the rotating mechanism, a scraper is arranged at the front end of the telescopic mechanism, an anti-collision mechanism is arranged at the front end of the scraper, the anti-collision mechanism comprises a pressure sensor and a floating pressing plate, the pressure sensor is arranged at the rear side of the pressing plate so that the pressing plate contacts the pressure sensor when shrinking backwards, the pressure sensor is electrically connected to the control unit so that the pressure signal change detected by the pressure sensor can be transmitted to the control unit, the leveling mechanism, the rotating mechanism, the telescopic mechanism are electrically connected to the control unit, and the operating console is electrically connected to the control unit so that an operator can operate the control unit through the operating console to drive the leveling mechanism, the rotating mechanism and the telescopic mechanism to move.

The utility model discloses a road surface paving and leveling support and a road surface paving and leveling device, the road surface paving and leveling support comprises a base, a supporting rod vertically arranged on the base, a limiting sleeve which is sleeved on the supporting rod and is used for lifting and sliding along the supporting rod, and a locking assembly and a supporting assembly which are respectively arranged on the limiting sleeve; the locking assembly is used for locking and fixing the limiting sleeve relative to the supporting rod. The supporting assembly comprises a supporting ring arranged around the limiting sleeve and a connecting rod arranged between the supporting ring and the limiting sleeve, the supporting ring and the limiting sleeve are connected into a whole through the connecting rod, and the supporting ring is used for supporting a leveling piece. According to the pavement paving and leveling support, the disc-shaped supporting structure is adopted, leveling pieces in any direction can be supported, the applicability is high, the supporting angle does not need to be accurately adjusted in the using process, and compared with a traditional leveling mode, the paving efficiency and quality are effectively improved, and the flatness is ensured.

The utility model provides a wall masonry mortar rapid paving device which comprises a side blocking assembly, a horizontal blocking piece, a connecting piece and a mortar scraping plate, and an inner side panel of the side blocking assembly can be attached to the side face of a wall. The horizontal blocking pieces are perpendicularly connected to the inner side panels respectively and protrude towards the other inner side panel by a set length. The connecting pieces are arranged in parallel, and the two ends of each connecting piece are detachably connected to the two side blocking assemblies correspondingly. The mortar scraping plate is connected to the connecting piece and located between the two inner side panels, and a set distance is formed between the bottom end of the mortar scraping plate and the horizontal blocking piece. According to the mortar paving device, by arranging the side blocking assemblies, the horizontal blocking pieces, the connecting pieces and the mortar scraping plates, uniform paving of mortar can be completed conveniently, rapidly and efficiently, and the mortar paving quality is improved; mortar can be prevented from overflowing to the wall body from a vertical joint between the side blocking assembly and the wall body, the labor intensity of operators is reduced, and the working efficiency is improved.

The utility model discloses an adjustable hopper for an asphalt concrete paver, which comprises a base, a connecting block connected to the upper end of the base, a blanking box fixedly mounted at the upper end of the connecting block, a hopper box connected to the upper end of the blanking box, and inclined plates fixedly mounted on the two sides of the top end of the hopper box respectively, and further comprises an adjusting device, the limiting device is fixedly installed in the discharging box and used for limiting the discharging amount of the spread materials; according to the asphalt concrete discharging device, the discharging amount is controlled through the adjusting device, the opening size of the first discharging opening can be flexibly adjusted according to the actual paving requirement, then the discharging amount of asphalt concrete is controlled, the precision of paving operation is improved, the paving efficiency is improved, and the paving efficiency is improved. The hopper is simple in structure and convenient to use, material waste can be avoided, working efficiency is improved, due to the fact that the discharging amount is adjustable, the hopper can adapt to paving operation of different scales and requirements, and higher adaptability and flexibility are achieved.

The utility model relates to the field of pavement construction, concretely discloses concrete pavement paving device, including traction mechanism and paving mechanism: the traction mechanism includes tractor, one side of the tractor is installed hydraulic lift frame, the paving mechanism includes the fixed frame subassembly of installing on the hydraulic lift frame, installs the paving board subassembly on the fixed frame subassembly, the utility model discloses the telescopic drive lift frame body around the hinge point rotation of hydraulic cylinder no., and then realizes the lifting action of fixed frame subassembly and paving mechanism, makes the concrete pavement paving device can according to different construction scene and pavement height requirement, the height of paving board subassembly is adjusted flexibly and accurately, ensures that it is always in the best working position, has improved the adaptability and convenience of construction greatly, effectively avoided the paving quality problem because of the height is not suitable, has improved the flatness and uniformity of pavement paving.

The invention relates to the technical field of road paving materials, in particular to composite toughened modified cold-mixed epoxy asphalt and a preparation method thereof. The composite toughened modified cold-mixed epoxy asphalt is obtained by mixing a first component and a second component at room temperature, the first component is obtained by stirring and mixing the following raw materials in parts by weight at 40-60 DEG C: 100 parts of epoxy resin, 10-30 parts of an epoxy resin diluent, 10-20 parts of carboxyl-terminated nitrile rubber and 5-15 parts of polyurethane; and the second component is obtained by heating and stirring the matrix asphalt and the asphalt diluent at 110-135 DEG C until the matrix asphalt and the asphalt diluent are dissolved, then cooling to below 40 DEG C, adding the curing agent and the compatibilizer, and continuously stirring until the materials are uniformly mixed. According to the invention, the problem of poor toughness of the cold-mixed epoxy asphalt is solved mainly by improving the mixing mode and carrying out composite toughening modification on the cold-mixed epoxy asphalt by using the carboxyl-terminated nitrile rubber and the polyurethane.

The utility model discloses a paving and distributing device of a slip form paver, which comprises a distributing component, a shifting component, a distributing component and a vibrating and tamping forming component which are respectively arranged on the rear side of the slip form paver. The material distributing assembly is arranged on the material stirring assembly; the material stirring assembly is arranged on one side of the material distributing assembly and communicates with the material distributing assembly. The material stirring assembly is rotationally connected with the material distributing assembly. The material distributing assembly is arranged on one side of the vibration tamping forming assembly and communicates with the vibration tamping forming assembly. Therefore, the forming mold is arranged on the rear side of the slip form paver, so that the paving width range can be effectively expanded; in addition, through integrated synchronous material conveying of the material stirring assembly and the material distributing assembly, the paving efficiency and quality of the slip form paver are effectively improved.