A kind of emergency control system and crane

Abstract

The invention discloses an emergency control system and a crane, including an emergency power module and an emergency control module; the emergency control module includes a main system control oil circuit, an auxiliary system control oil circuit, an outrigger system control oil circuit, and a slewing system control oil circuit , the pilot system controls the oil circuit; the emergency power module includes a power unit, an emergency main pump, an emergency pilot pump, a first reversing valve, and a second reversing valve; the power unit is connected to the emergency main pump and the emergency pilot pump respectively; The power module and the emergency control module are connected through the detachable first connecting piece and the second connecting piece; after the emergency main pump passes through the first reversing valve and the first connecting piece, it is respectively connected to the main system control oil in the emergency control module. circuit, auxiliary system control oil circuit, outrigger system control oil circuit, slewing system control oil circuit; the emergency pilot pump is connected to the pilot system control oil circuit in the emergency control module after passing through the second reversing valve and the second connecting piece .

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and particularly relates to an emergency control system and a crane. Background technique [0002] For single-engine truck cranes or all-terrain cranes, when the engine or gearbox fails and cannot work, the crane loses its power source and can no longer be controlled. When the position is changed, if the environment changes, such as the increase of wind speed, the crane will be in a dangerous state, and it will even cause overturning and cause serious losses. The main subsystems such as slewing, winch, and jib return to a safe state. In order to be able to pull the tractor, the outriggers need to be recovered. In order to meet the requirements of the road axle load regulations, it is also necessary to control the counterweight oil circuit to realize the counterweight unloading. , the emergency control device usually does not require high control time, but requires easy and rapid i...

AI Technical Summary

Problems solved by technology

[0002] For single-engine truck cranes or all-terrain cranes, when the engine or gearbox fails to work, the crane loses its power source, and each action can no longer be controlled. position, if the environment changes, such as the wind speed increases, the crane will be in a dangerous state, and may even cause overturning, resulting in serious losses. The main subsystems such as slewing, winch, and jib return to a safe state. In order to be able to be pulled by the tractor, the outriggers need to be recovered. In order to meet the requirements of the on-road axle load regulations, the counterweight oil circuit must be controlled at the same time to realize counterweight unloading. , the emergency control device usually does not have high requirements on the operation time, but requires easy and fast installation and integration

Images