Feeding device control system for sand throwing fire extinguishing car
A technology of control system and feeding device, applied in fluid pressure actuating device, fire rescue, loading/unloading, etc., can solve the problems of inability to detect material feeding amount in real time, effective control of hydraulic system, large vehicle space, etc. Achieve the effect of reducing human error, large material carrying capacity and high integration
Pending Publication Date: 2018-07-24
JIANGSU XCMG CONSTR MASCH RES INST LTD
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Problems solved by technology
Domestic large-scale sand blasting trains are still in a blank stage. Since the feeding device of the sand blasting train is the main actuator, the traditional belt conveyor requires a separate storage device that takes up a lot of space in the vehicle, and the feeding device has load-bearing storage capacity. And the dual performance of conveying materials, but in the existing technology, it is impossible to detect the feeding amount of materials in real time and effectively control the hydraulic system, and the material will be blocked during the feeding process, making it difficult to make the whole machine work at the best working point.
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[0022] The present invention will be described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. An aspect so defined may be combined with any other aspect or aspects unless specifically indicated otherwise. In particular, any feature considered to be preferred or advantageous may be combined with one or more other features which are considered to be preferred or advantageous.
[0023] according to Figure 1-2, a feeding device control system for sand throwing fire trucks includes: engine 1 (ie power mechanism), fuel tank 2, hydraulic pump 3, filter 4, overflow valve 5, two-position four-way electromagnetic reversing valve 6, detection Valve 7, control valve 8, left hydraulic cylinder 9, middle hydraulic cylinder 10, right hydraulic cylinder 11.
[0024] The detection valve 7 includes: a reversing valve 7.1, a reversing rod 7.2, a detection piece II 7.3, and a detection piece I 7.4.
[0025] The left hydraulic cy...
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The invention relates to a feeding device control system for a sand throwing fire extinguishing car, and belongs to the technical field of hydraulic and electric application. The control system comprises a power mechanism, an oil tank, a hydraulic pump, a detecting valve, a two-position four-way electromagnetic reversing valve, a control valve, a left side hydraulic cylinder, a middle hydraulic cylinder and a right side hydraulic cylinder. The control system is characterized in that the power mechanism provides power to the hydraulic pump; the hydraulic pump communicates with the oil tank; anoil outlet P of the hydraulic pump is connected with the two-position four-way electromagnetic reversing valve; and the two-position four-way electromagnetic reversing valve is connected with the detecting valve. The control system realizes feeding and unloading of materials through control on and off of an oil way of the hydraulic cylinder, detects the feeding quantity of the materials in real time, controls the hydraulic system, prevents blockage caused by excessive material feeding, enables the whole machine to work in optimal working condition point, greatly reduces manual operation errors, and meanwhile, has the advantages of high material bearing capacity, high integration degree, simple and reliable system and the like.
Description
technical field [0001] The invention relates to a control system of a feeding device for a sand throwing extinguishing vehicle, which belongs to the technical field of hydraulic and electrical applications. Background technique [0002] The sand throwing extinguishing train is used in fire fighting, and can be used to extinguish special fires that avoid water, foam, and carbon dioxide. It has played a huge role in improving fire extinguishing efficiency and reducing rescue risks, and is related to the sustained and rapid development of the national economy. Domestic large-scale sand blasting trains are still in a blank stage. Since the feeding device of the sand blasting train is the main actuator, the traditional belt conveyor requires a separate storage device that takes up a lot of space in the vehicle, and the feeding device has load-bearing storage capacity. And the dual performance of conveying materials, but in the existing technology, it is impossible to detect the f...
Claims
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IPC IPC(8): F15B11/20F15B13/07B65G65/00A62C31/00
CPCF15B11/20F15B11/205F15B13/07B65G65/005B65G2201/045A62C31/00Y02A40/81
Inventor 杜辰蕊魏广娟张勇
Owner JIANGSU XCMG CONSTR MASCH RES INST LTD