Cluster box lifting safety device

Abstract

The invention discloses a cluster box lifting safety device, and solves the problems of inconvenience to dismount a traditional cluster box and a frame safety rod and weak use effect. A lifting support frame is fixedly connected to one end of a frame; one end of a cluster box is hinged to the top of the lifting support frame; a piston rod of a hydraulic cylinder is hinged to the cluster box by a first hinge base; a cylinder body is hinged to the lower part of the lifting support frame by a second hinge base; a box body on the outer side of the cluster box is connected with a fixed base by a fixed plate; a hinge end of a safety lever is hinged to one side of the first hinge base by a third hinge base, and a free end is fixed with a connecting plate; and the connecting plate is pinned to the fixed base by an elastic bolt, or is deviated from the elastic bolt to eject against a cylinder cover of the hydraulic cylinder. The cluster box lifting safety device is reasonable in design, simple in structure and excellent in safety, can pull the elastic bolt to deviate the safety lever from the fixed base, and is convenient to operate and reliable in use.

Description

technical field [0001] The invention relates to a device for unloading objects or materials by tilting an ear box, in particular to a lifting safety device for the ear box. Background technique [0002] As we know, corn harvesters are generally equipped with self-unloading granaries for temporarily storing ears. Its self-unloading granary usually includes an ear box hinged at one end to the frame and a hydraulic cylinder fixed between the frame and the ear box. When unloading the ears, the piston rod of the hydraulic cylinder pushes the ear box to rotate around the hinge point, and the ear box The ear of the ear is dumped and unloaded through the lower end of the ear box. When the corn harvester repairs and maintains the parts near and below the ear box, the ear box needs to be raised, and the ear box is pushed by the drive of the hydraulic cylinder. Maintenance personnel operate under the fruit ear box, once the hydraulic cylinder fails, the fruit ear box falls rapidly un...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of inconvenient disassembly and assembly and poor safety effect of the safety bar between the ear box and the vehicle frame in the prior art, the present invention provides a fruit ear bar with reasonable design, simple structure, convenient operation, and good safety effect in use. Box lift safety device

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