Wear plate in concrete pumping device

摘要

The present invention relates to a wear plate 12 of a concrete pumping device, which is attached to the inner wall surface of the hopper 103 for accommodating and agitating the concrete, and a pair of concrete for sucking the concrete and then forcing it back to the hopper 103 side Wear plate 12 of the concrete pumping apparatus which is rotated alternately between the cylinders 104a and 104b in the hopper 103 to be in surface contact with the ends of the S pipes 105 communicating with the concrete cylinders 104a and 104b. In the wear plate 12, a pair of wear plates 12a and 12b are formed to be bonded to each other, and the through holes of the wear plates 12a and 12b and the hopper 103 which are in surface contact with the S-pipe 105. The wear plates 12a and 12b in contact with the portion are made of a wear-resistant composite material, and the wear plates 12a and 12b are formed with a lubricating oil injection hole 19 and a lubricating oil passage 20 for the inflow of the friction lubricant. It is easy to process and manufacture, reduce the manufacturing cost, A body that will facilitate.