Mechanical type automatic rail gripping apparatus

Abstract

The present invention discloses a mechanical type automatic catching and laying rail device, consisting of a hook seat, a hanging seat, a guide board, a clamping arm, and a link lever, wherein the hook seat consists of a hanging lug board, an upper gear ring, a lower gear ring, a screw rod, and a T-shaped hook, wherein the clamping arm is connected with the hanging seat by an axle on the hanging seat; one end of the link lever is connected with the hook seat by the axle, while the other end is connected with the clamping arm by the axle; the link lever is connected with the clamping arm to form a four-bar linkage structure; the four link levers are driven to displace by the upward and downward movement of the hook seat so as to open or close the clamping arm and achieve the steel rail catching movement and the steel rail laying movement; the upper gear ring is fixed in the hook seat, while the lower gear ring can be rotated along with the upward movement and the downward movement of the T-shaped hook; the mechanical self-locking and unlocking is realized by the rotation of the lower gear ring and the separation and joggling of the upper gear ring. The device does not need the driveof a power source, and is not restricted by the work environment. Just by the mechanical movement, automatic rail catching and laying can be realized. The device is simple in structure, convenient inoperation, practical, reliable, lower in cost, high in economy, and high in practicability.

Description

technical field [0001] The invention relates to a spreader mounted on a crane, more particularly to a mechanical automatic rail grabbing and releasing device, especially suitable for self-hoisting of railway rails. Background technique [0002] Long rail products are processed and produced in rail welding factories (or rail welding bases). The production process of long rails in my country includes: lifting and unloading of welding rails, sorting and storing rails, and welding rails. At present, the hoisting equipment used by the rail welding factories of various railway bureaus in my country is still quite simple. Only one electric hoist is installed every 16 meters. For example, 32 electric hoists are required for hoisting a 500-meter long rail. One operator, holding the button and coordinating with adjacent personnel for hoisting, the hoisting hook still relies on manual work, especially the operation efficiency of installing the 500-meter-long steel rail on the long rail ...

AI Technical Summary

Problems solved by technology

Some use a four-bar linkage mechanism to unhook by the self-weight of the spreader, and then rely on the self-weight of the rail to grab the rail after being hoisted. However, the self-weight of the spreader in this way reaches 800kg, which is inconvenient to operate and high in cost.

[0004] At present, rail grabbing and releasing spreaders that use compressed air or electromagnets and other power sources are subject to great environmental constraints. Many, inconvenient to operate, high cost whether it is pre-manufacturing or post-maintenance

Images