What are the safety technical conditions for the forklift crane structure?
Answer: (1) The door frame must not be deformed and the weld seam should be unwelded. The rolling gap between the inner and outer door frames should be adjusted reasonably, not more than 15mm, the rolling rotation should be flexible, and the rollers and shafts should be free of cracks and defects. The wear of the wheel groove must not be greater than the original size
10%. (2) The tension of the two lifting chains should be even, without distortion, the ends should be connected firmly, and the pitch of the chain should not exceed 4% of the length, otherwise the chain should be replaced. The sprocket rotation should be flexible. (3) The fork frame must not be severely deformed; the surface of the fork must not be cracked; the welds of all parts must not be de-welded, the root angle of the fork must not be greater than 93%, and the thickness must not be less than 90% of the original size; The height difference should not exceed 3% of the length of the horizontal section of the fork; the positioning of the fork should be reliable, the bearing surface and positioning surface of the fork hook must not have obvious defects; the cooperation gap between the fork and the fork frame should not be too large, and the movement should be smooth . (4) The joint part of the lifting cylinder and the gantry should be firm, the hinge connection of the tilting cylinder and the gantry, and the frame should be firm and flexible, and the cooperation clearance should not be too large. The cylinder should be well sealed, free of cracks, and work smoothly. Under the rated load, the self-sinking amount of the 10min mast is not more than 20mm, and the inclination angle is not more than 0.5 degrees. The lifting speed at full load is not less than half of the standard value.
