Hydraulic automatic coupler lifting device for empty car shunting machine and control method

Abstract

The invention discloses a hydraulic automatic coupler lifting device for an empty car shunting machine and a control method. The device comprises a coupler lifting control mechanism and a positioning detection mechanism, wherein the coupler lifting control mechanism is composed of a coupler lifting mechanism and a coupler lifting hydraulic control system, and the positioning detection mechanism comprises a coupler opening in-place proximity switch, a coupler closing in-place proximity switch, a coupler lifting in-place proximity switch and induction stop iron. During working, control over lifting and dropping of a car coupler is achieved through a PLC system by acquiring induction signals, under different working conditions, of a coupler opening in-place switch, a coupler closing in-place switch, a coupler lifting in-place switch, a car pushing starting point switch, a car pushing speed reduction position switch and a car pushing terminal point switch of an empty car shunting machine hook head, and automatic and steady coupler touching and removal of the empty car shunting machine are achieved. The problem of direct collision between the empty car shunting machine hook head and a compartment is solved, and operation safety is improved. The reliability of equipment is ensured, and the damage rate of equipment is reduced.

Description

technical field [0001] The invention belongs to the technical field of dumper systems in thermal power plants, and in particular relates to a hydraulic automatic hook lifting device and a control method for an empty car shunting machine. Background technique [0002] The tipper system is widely used in coal unloading operations in thermal power plants. On the one hand, it must be safe, reliable and efficient. On the other hand, it must also be well matched with railway vehicles and meet the requirements of relevant standards. The dumper is an important coal unloading method in thermal power plants. The empty car shunting machine is an important machine to realize the single-section empty car retreat from the relocation platform and merge into the entire empty car. According to the Ministry of Railways of China TG / CL259-2010 "Railway Freight Cars In order to reduce the damage to the car box and the hook and stabilize the hook, the empty car shunting machine has been improved,...

AI Technical Summary

Problems solved by technology

If the cart hook head of the empty car shunting machine of the dumper system is not equipped with a hook and a dehook device, the impact force between the hook head and the empty car skin will be large, resulting in wear of the train hook head and the empty car shunting machine hook head and the overall impact of the train car The hidden dangers will affect its normal service life

In some power plants, although the cart hook head of the empty car shunting machine of the dumper system is equipped with a hook closing device, the interlocking device of the switch hook head is not perfect, and the hook head is not equipped with a signal device for hook opening in place, and the control system cannot recognize the empty car. In the opening and closing state of the coupler head of the car, if the shunting machine of the empty car is not disengaged from the whole row of empty cars, the whole row of empty cars will be pulled back by the shunting machine of the empty car, and the tail car will go over the stopper, causing the stopper to stop. and carriages are damaged, the train derails, and even the carriages fall into the foundation pit of the relocation platform, causing serious consequences such as equipment personnel injury

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