The invention relates to leveling equipment and particularly relates to petroleum asphalt concrete leveling equipment for pavement patching. The invention aims to provide the petroleum asphalt concrete leveling equipment for pavement patching high in efficiency, good in effect and time- and labor-saving. In order to solve the technical problem, the invention provides the petroleum asphalt concreteleveling equipment for pavement patching. The petroleum asphalt concrete leveling equipment for pavement patching comprises a bottom plate, wheels, a vertical plate and the like; the wheels are mounted at four corners of the bottom of the bottom plate, the left side of the top of the bottom plate is connected to the vertical plate, a driving device is arranged on the right side of the vertical plate, a flattening device is arranged in the middle of the bottom plate, the driving device is matched with the flattening device, and two mounting blocks are connected to the front and back sides of the bottom plate. The driving device drives the flattening device and a planishing device to operate so as to level the petroleum asphalt concrete of a pavement, and an even-out device and a rolling device further improve the leveling efficiency, so that the effects of being high in efficiency, good in effect and time- and labor-saving are achieved.

Petroleum asphalt concrete leveling equipment for pavement patching

A paving machine having electric powered systems in lieu of hydraulic systems for performing work at a work site may include an integrated generator operatively connected to a power source of the paving machine, such as an engine, to produce AC power. A power converter may receive the AC power and output DC power to electric motors, with each electric motor being operatively connected to a corresponding one of a plurality of mechanical components. The power converter may distribute power from the generator to the plurality of electric motors in response to commands to actuate the plurality of mechanical components input at an operator station. The electric powered systems may include propulsion devices, material conveyors, augers and the like.

Electric powered systems for paving machines

A vibratory pothole packer includes a frame that supports an engine and a rotatable drum, and a rotatable eccentric shaft is supported within the drum. The eccentric shaft may be a drum shaft with a mass welded to its surface. The eccentric shaft is supported within the drum by bearings, and is also supported on the frame by bearings. The engine shaft can be selectively linked with eccentric shaft to selectively effect vibrational rotation of the eccentric shaft. The small, lightweight pothole packer is manually movable on a surface by one person, and can be moved along a surface either while the eccentric shaft rotates or while the eccentric shaft is not rotating. The center of mass of the eccentric shaft is offset towards one end of the shaft to allow the vibratory pothole packer to be easily moved in a straight line along a surface.

Vibratory pothole packer

The invention discloses a screeding and troweling robot which comprises a machine frame, a walking device, a steering device and a screeding device. The machine frame includes a base frame and a mounting plate, and the mounting plate is fixed on the base frame. The walking device includes a roller, a transmission mechanism and a driving part. The roller is rotatably arranged at the bottom of the base frame, and the driving part is arranged on the mounting plate. The transmission mechanism is arranged between the driving part and the roller. The steering device is arranged in the center of themounting plate. The screeding device comprises a supporting frame, a connecting rod, a screeding plate assembly and a linear driving part. The supporting frame is connected to the base frame, the twoends of the connecting rod are rotationally connected to one end of the supporting frame and one side of the screeding plate assembly correspondingly, and the two ends of the linear driving part are rotationally connected to the other end of the supporting frame and the other side of the screeding plate assembly correspondingly. The screeding and troweling robot has a screeding effect, can achievepose adjustment of the troweling plate assembly at the tail end, adapts to operation in different work conditions, and is high in functionality, flexible to operate and beneficial to achieving full-automatic construction operation.

Screeding and troweling robot

The invention relates to the field of construction machinery and discloses a ground screeding robot. The ground screeding robot comprises a body, a first walking component and a second walking component, wherein the first walking component is fixedly connected with the body; the second walking component comprises a walking mechanism, a steering mechanism and a jacking mechanism, wherein an outputend of the steering mechanism is connected with the walking mechanism; the steering mechanism can be used for driving the walking mechanism to rotate on the horizontal plane relative to the body; thejacking mechanism is arranged between the body and the steering mechanism and can be used for driving the steering mechanism and the walking mechanism to be lifted up and down; and the first walking component and the second walking component can be used for together or independently driving the body to walk. The ground screeding robot provided by the invention can be steered at an edge position, so the operation coverage rate is increased.

Ground screeding robot

A screed machine is formed with a forwardly positioned screed assembly including a wedge portion and pivoted wing members. The frame is supported on two rollers spaced behind the screed assembly, which is mounted on a mast for vertical movement in conjunction with a laser receiver that provides a signal from a laser level indicating the final desired grade of the stone base. The machine can be turned at a corner by extension of a jack stand to elevate the machine for rotation about the axis defined by the centrally located jack stand so that the screed machine can be redirected into a different direction without disturbing the final grade of the stone base. The screed machine is manually moved along the stone base by an operator pulling on the handle pivotally connected to the frame. A sight line provides a monitor for the lateral orientation of the screed assembly.

Melvin M. Zimmerman

Papers

Screed Machine for Preparing a Stone Base