Elevators larger than 1 meter use hydraulic ones, with a buffer distance of 150MM-400MM. Generally, elevators with a speed less than or equal to 1 meter use spring poly or urethane buffers, with a buffer distance of 200MM-350MM. In short, it is for consumption. Capacity requirements are 150-400mm.
For energy storage type, 200-350mm is required. An elevator refers to a permanent transportation equipment that serves several specific floors in a building and whose cars run on at least two rigid rails perpendicular to the horizontal plane or with an inclination angle of less than 15° to the plumb line.
Extended information:
The elastic buffer is mainly composed of a buffer body, elastic media parts, supports, connecting parts, etc.
The buffer body is used to accommodate and connect elastic media parts, supports, coupling parts, etc., and to fix the buffer on the gun (gun) body (gun (machine) box].
Elastic media parts are mostly springs, which generate elastic force when the weapon retreats and forwards, buffering the force and impulse of the weapon on the mounting frame. The spring is installed in the buffer body and supported on the support member with a certain pre-pressure. .
The supporting parts are mostly washers, used to support the spring and transmit the movement of the weapon and compress the spring;
The connecting parts are mostly connecting rods. Install washers and springs, connect the weapon mounting bracket, and transmit the spring working force to the weapon mounting bracket.
The buffer body is fixed on the weapon, the buffer coupling is firmly connected to the weapon mounting bracket, and the buffer spring is fixed. Both ends rest on washers, and the washers rest on the buffer body and coupling. When fired, the buffer body moves forward and backward with the weapon body. The buffer body compresses the buffer spring through the washer, and the spring force passes through the other end. The washer is transmitted to the buffer coupling, and the coupling transmits the spring force to the weapon mount.
The hydraulic cylinder is connected to the gun body. During the shooting process, the gun body drives the hydraulic cylinder to recoil together, and the buffer The piston rod is connected to the shoulder stock and is pressed against the shooter's shoulder. The cavity formed by the piston rod and the hydraulic cylinder is filled with hydraulic oil.
After firing, the gun body recoils under the combined force of the gun bore and the shoulder stock. It can be considered fixed. The hydraulic cylinder moves backward relative to the piston rod. The volume of the I chamber decreases and the liquid pressure increases, forcing the hydraulic oil to flow into the II chamber through the annular leak between the hydraulic cylinder and the piston. At the same time, the buffer spring is compressed and stored. Reentry energy. Since the area of ??the annular leakage is much smaller than the piston area, the liquid flows through the annular leakage at a high speed, causing great resistance to the gun body. The recoil of the gun body plays a buffering role when the gun body's recoil energy is consumed and the gun body sits to the rear. At this time, the buffer spring relaxes, pushing the gun body back to the pre-firing position, and the piston rod moves backward relative to the hydraulic cylinder. The hydraulic oil flows back to the I cavity through the annular leakage
Reference: Baidu Encyclopedia - Elastic Buffer
Reference: Baidu Encyclopedia - Hydraulic Buffer
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