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Integrated control system of wheel type engineering machine

A technology of construction machinery and comprehensive control, applied in the field of control systems, can solve the problems of not taking into account the directional stability of the whole vehicle, no real-time monitoring system of the whole pipeline, and low mobility of the vehicle, so as to ensure braking safety and safety. Reliability, improved braking maneuverability, natural pedal feel

Active Publication Date: 2014-07-16
徐州徐工能源装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main defects of the full hydraulic braking system on the market are: 1. The directional stability of the vehicle is not considered when braking, and the maneuverability of the vehicle is not high; 2. The steering system, the braking system and the actuator There is no reasonable layout plan; 3. There is no complete real-time monitoring system for the whole pipeline

Method used

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  • Integrated control system of wheel type engineering machine

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing.

[0011] like figure 1 Shown: the present invention includes two-way fluid charging valve 1, first accumulator 2, series pedal valve 3, brake tail light pressure switch 4, pressure reducing valve 5, rear axle brake 6, parking brake 7, front axle brake 8 , parking alarm switch 9, second accumulator 10, emergency brake action switch 11, low pressure alarm switch 12, parking and emergency brake valve block 13, overflow valve 14, dual gear pump 15, steering pump 16 and Steering oil cylinder 17; dual gear pump 15 and steering pump 16 are respectively connected to dual charging valve 1, the oil outlet of dual gear pump 15 is connected to port P of dual charging valve 1, and the outlet of dual charging valve 1 A1 port and A2 port are respectively connected to the P1 port and P2 port of the series pedal valve 3 through pipelines, the first accumulator 2 is connected to the pipeline ...

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Abstract

The invention discloses an integrated control system of a wheel type engineering machine. A travel braking system and a parking braking system in the integrated control system are independent from each other and do not influence each other. A series pedal valve is treaded by a foot in the travel braking process and controlled to achieve synchronous braking of a front axle wet disc brake and a rear axle wet disc brake; and a parking and emergency braking valve block is controlled through pressing down a parking and emergency braking valve button to open a working oil hole to achieve parking braking in the parking and emergency braking process. According to the integrated control system, the braking operability, reliability and direction stability of the whole machine are effectively improved.

Description

technical field [0001] The invention relates to a control system, in particular to a comprehensive control system for wheeled engineering machinery. Background technique [0002] Wheeled construction machinery generally has two types of braking systems: air cap oil braking and full hydraulic braking. Air top oil brake system is widely used, but this system needs to be equipped with air compressor, oil-water separator, air storage tank, pressure controller, air brake valve, air top booster pump, air pipeline and oil pipeline etc.; the structure is too complex and difficult to arrange, with high power consumption and high noise. During work, frequent braking will generate a lot of heat, which will cause the sealing of the braking system to fail, resulting in unreliable braking effect. [0003] Compared with the air-top oil brake, the full hydraulic brake has the following advantages: the hydraulic pipeline is a fully closed circuit, which can prevent the dust in the atmospher...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/12
Inventor 石国华窦贤磊王伟乔斌贾富强邢留涛姜军刘海东
Owner 徐州徐工能源装备有限公司
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