Troubleshooting and maintenance of friction press?

(1) The slider cannot rise or rises slowly. Reasons: ① The clearance between flywheel and friction plate is too large or the friction plate is loose and displaced; ② Insufficient oil pressure of hydraulic control mechanism; (3) Bearing wear at two points of the transmission shaft increases friction; (4) Upsetting occurred at the lower part of the nut, resulting in too small screw clearance. Troubleshooting: troubleshooting and repairing for specific reasons.

(2) The slider cannot stop at the upper end. Reasons: ① The position of the inclined plate of the operating brake device is too high, and the position of the upper limit plate is too low; ② The spring of the braking device is weak or loose; ③ There is lubricating oil on the friction working surface of the brake wheel. Troubleshooting: troubleshooting and repairing for specific reasons.

(3) The oil pump of the control system heats up and the oil temperature rises. Reasons: ① Overflow valve pressure is too high; ② The ambient temperature around the oil pump is too high. Elimination method: ① Adjust the overflow valve; (2) Don't make the oil pump close to the heating furnace.

(4) The main motor is burnt out. Reason: Starting from the load. Troubleshooting: Before starting, the flywheel must be in the middle of two friction plates.

(5) The friction belt is broken or damaged. The reason is that the friction belt keeps rubbing and heating. To prolong the service life of the friction belt as much as possible: ① Check the tightness of the tension bolt of the friction belt regularly; (2) The braking device shall be used normally, and the braking band shall not be stained with oil; ③ Protect the smoothness of the contact surface between friction wheel and flywheel; ④ When operating the handle, the lateral pressure of the friction wheel on the flywheel should be appropriate.

(6) Other faults, such as damage of buffer pad, strain of guide rail, fracture of tie rod of balance cylinder, etc. Pay attention to the operation method, regularly check and adjust the gap between guide rails, strengthen the cleaning and maintenance of equipment, and do not carry out eccentric forging.