When the crane hits the oil buffer, push the bump head, piston and spring to move. When the spring is compressed, it absorbs a tiny fraction of the energy. When the piston moves, it compresses the liquid in the hydraulic cylinder. The liquid oil under pressure flows through the annular gap between the top rod and the piston at the bottom into the oil storage chamber, where the absorbed impact energy is converted into heat energy and plays a buffer role.
After the reverse operation of the crane, the buffer and the stop body gradually separated, and the spring of the buffer hydraulic cylinder can make the piston return to the position on the tableland. At this time, the liquid in the oil storage chamber flows back to the hydraulic cylinder, and the bump head is also pushed back to the tableland by the spring. The hydraulic buffer can absorb large impact energy, its stroke can be made short, so the size is also small. The greatest advantage of the hydraulic buffer is that there is no rebound effect, so the work is more stable and reliable. The exhaust buffer comprises a capsule, an interface and an outlet. The capsule is an elastic rubber material. The diameter from the capsule to the outlet is in the shape of large to small. The direction of the extension line of the outlet has an Angle of about 90 degrees with the capsule. The interface is provided with a convex edge.
After the structure is adopted, the interface can be conveniently set on the heating exhaust valve at any time, the buffer capsule can be gushing water buffer and collected from the outlet, so as to ensure the quality of heating and avoid affecting environmental health. The seat buffer comprises a moving frame formed by the upper force plane frame, the base plane frame and the plane frame between the plane frame as the guide guide rail, and the damper and the damping spring, the damper is arranged in the middle line of the active frame, and is provided with a group of damping springs on both sides of the damper. It overcomes the technical problem of unbalanced cushioning of existing seat buffers which only have a single cushioning spring set and eccentric damper set, and can provide more comfortable cushioning and cushioning functions in a balanced, comprehensive and stable way.
Buffer includes cylinder, end cap, sealing ring, piston assembly and pressure spring, piston assembly and pressure spring placed in the cylinder, the cylinder has a working area and guide hole, and filled with a certain amount of buffer oil, with the end cap, sealing ring to seal, the gap between the piston and the cylinder working area for a change of value, in the early piston movement, the gap between the piston and the cylinder is larger, In the later stage of piston movement, the clearance between the piston and the cylinder is smaller.
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