Experimental study on hydraulic pumping device of cam pump

China's coal source is relatively rich in cost, and if it is done in the coal-fired kiln itself, it will play a better role. It has always been a difficult problem to improve the mechanical pressing force of the shearing machine. In the past few years, our factory has carried out experimental research on this issue and has achieved remarkable results. In order to solve the problem of pressing material, it has been used on the product when the knife holder has just started to move downwards, which is suitable for small shearing machines. When the upper tool holder is descending, the pressing device also moves downward with the tool holder. When the steel plate is encountered, the spring is compressed, and the pressing head presses the steel plate. The advantage of this device is that the spring force balances the tool holder, but the spring releases energy due to the return stroke.

After the project is pressed, after the cutting is completed, when the tool holder is ascending, the spring is released by the spring at the left end of the lever to be reset. This structure is used for the mechanical press of a medium-sized shearing machine, and its structure is complicated and large.

The two types of shearing machine originally used the hydraulic pumping device of the cam pump. Because of the hydraulic pressing material, when the narrow material is sheared, the pressing force is insufficient, and the sheet is easy to shift the cam, and the cost of the oil is high. The foreign company has requested to change into mechanical pressure material. For this reason, our factory has designed and developed a new structure of disc spring pressing material, and its pressing force can reach the pressure material structure of a new pressing material mechanism.

The rail seat is fixed to the frame by screws, and each of the left and right rail seats has a disc spring group composed of 65 disc springs.

When the upper tool holder is descending, the pressing device also moves downward with the tool holder, and the spring releases energy. When the steel plate is encountered, the pressing head presses the steel plate, the pressing force does not change, and the tool holder is in the returning direction. Under pressure.