In a paver F comprising a combustion engine M, in particular a diesel engine, of a primary driving aggregate P, functional units having hydraulic pumps 23, 30 to 33 inclusive a travel pump aggregate 23 which can be driven by the combustion engine M for supplying at least one travel drive 16, a generator G for supplying electric heating devices H of the paver F and/or of a paving screed B of the paver F with electric power, the generator G is driven permanently while at least one pump 23, 30 to 33 selectively can be disconnected from the combustion engine via at least one shiftable clutch K1, K2, K3. During a heating-up phase of electric heating devices H via the permanently driven generator G at least one of the pumps is disconnected. During transport travel at least one pump of the functional units, except the permanently driven travel pump aggregate 23 and the generator G, is disconnected. During start and, optionally, during warm-up of the combustion engine M pumps of functional units, optionally including the travel pump aggregate 23, are disconnected.

Road finisher and method

The invention provides an automatic leveling double-layer prestressed ironing plate with a cleaning function. An outer-layer ironing plate is connected with an ironing plate main body through a fixing plate. A rotating device is arranged on the fixing plate. Rotating rods are arranged on the outer-layer ironing plate and rotationally connected with rotating shafts. The rotating shafts are arranged on the outer side of the fixing plate. The left side of the ironing plate main body is connected with a left-side oil cylinder through a left force applying component. The right side of the ironing plate main body is connected with a right-side oil cylinder through a right force applying component. The middle of the ironing plate main body is connected with a middle oil cylinder through a force applying component. The left-side oil cylinder, the right-side oil cylinder and the middle oil cylinder are all arranged at the bottom end of the fixing plate. A cleaning device is arranged on the ironing plate main body. Leveling devices are arranged on the two sides of the ironing plate main body. The situation that a rough surface occurs due to the fact that a road surface is scratched during repaving is avoided; and in the paving process, the effect that an ironing plate operates on the same horizontal plane is ensured, so that the situation that a paved middle road surface is thinner than road surfaces at the two ends due to too long distance between iron wires and the effect of gravity is effectively avoided.

Automatic leveling double-layer prestressed ironing plate with cleaning function

The invention provides a paver ironing device with a cleaning function. The left side of an ironing plate main body is connected with a left side oil cylinder through a left force application component. The right side of the ironing plate main body is connected with a right side oil cylinder through a right force application component. The middle of the ironing plate main body is connected with a middle oil cylinder through a force application component. A cleaning storage heating tank is arranged on one side of the ironing plate main body. A cleaning heating device is arranged on the inner side of the cleaning storage heating tank. A circulating pump is arranged on one side of the bottom of the cleaning storage heating tank. The cleaning storage heating tank is connected with cleaning liquid pipes through the circulating pump. The cleaning liquid pipes are provided with liquid inlet valves. The cleaning liquid pipes are arranged at the bottom end and the top end of the ironing plate main body. Cleaning spraying heads are arranged on the cleaning liquid pipes evenly and are of a hollow structure with a semicircular cross section. The cleaning spraying heads are provided with cleaning holes. A temperature sensor is arranged in the middle of the ironing plate main body. The paver ironing device has a very good cleaning effect. The conditions of pavement scratching during second paving and a rough surface are avoided, and thus the paving quality is improved.

Paver ironing device with cleaning function

The utility model belongs to the pavement construction machine, which relates to a heating cleaner of a screed of a paver. The device comprises a pump set valve block driven by a motor. The oil inlet of the pump set valve block is communicated with a diesel fuel tank through an oil pipe. The oil pipe which is led out from the oil outlet of the pump set valve block has two branches, one branch is connected to a plurality of diesel burners, and the other branch is connected to a spray pistol. The utility model has the advantages of simple structure, convenient operation and high use reliability.

Chen Yujun

Papers

Heating cleaner of mangle plank of paver