working principle
The hydraulic transmission system is composed of pumps, valves, oil cylinders, fuel tanks, pipelines and other hydraulic components. Under the electrical control, the lifting of the saw beam and the clamping of the workpiece are completed. The stepless speed regulation of the feed speed can be implemented through the speed regulating valve, so as to meet the sawing needs of workpieces of different materials. The electrical control system consists of a control circuit consisting of an electrical box, a control box, a junction box, a travel switch, and an electromagnet. It is used to control the rotation of the saw blade, the lifting of the saw beam, and the clamping of the workpiece, so that it follows a certain working procedure. Achieve normal cutting cycle.
Lubrication system Before starting, the machine must be lubricated according to the lubrication parts of the machine tool (wire brush shaft, worm gear box, active bearing seat, worm bearing, upper and lower shafts of the lifting cylinder, and movable vise sliding surface clamping screw). The worm gear and worm in the worm gear box are lubricated with No. 30 oil bath. It is injected from the oil plug hole in the upper part of the worm gear box. The oil surface of the box is provided with an oil mark. between. The oil should be changed after one month of trial. After that, the oil should be changed every 3-6 months. An oil drain plug is provided at the lower part of the worm gear box.
The bridge saw drives the motor mounted on the worm gear box to drive the worm and worm gear in the worm gear box through the belt pulley and triangle tape, which drives the driving wheel to rotate, and then drives the saw blade around the active / passive rim to perform cutting and rotating motion. The saw blade feed movement is a hydraulic circulation system composed of a lifting oil cylinder and a speed regulating valve, which controls the saw beam descending speed to control the saw blade feed (stepless speed regulation) movement. The saw brush rotates at the place where the saw blade produces chips, and rotates with the direction of the saw blade. The cooling pump is used to clean the coolant to remove the chips on the saw teeth. The coolant is in the cooling cutting fluid tank on the right side of the base, and the coolant is directly driven by the water pump.