Control system and self-travelling type construction machinery with same

A technology of control system and steering control, which is applied in infrastructure engineering, processing of building materials, wellbore lining, etc. It can solve the problems of slow pumping displacement, inconvenient operation, and high cost, and achieve simple mechanism structure and easy operation. Simple, convenient and cost-effective

Active Publication Date: 2012-07-11
SANY AUTOMOBILE MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the construction of tunnels, etc., the following power supply problems are often encountered: due to power failures and other reasons, power outages on the construction site occur from time to time; Thick, so that the voltage received by the self-propelled construction machinery cannot get the normal required voltage due to line loss, usually about 5% lower than

Method used

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  • Control system and self-travelling type construction machinery with same
  • Control system and self-travelling type construction machinery with same
  • Control system and self-travelling type construction machinery with same

Examples

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Embodiment Construction

[0026] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below with accompanying drawings.

[0027] Such as figure 1 As shown, the present invention provides a kind of self-propelled construction machine, comprises mobile chassis 18, is provided with accelerator pump 19, high-pressure cleaning pump 10, air compressor system 20, cable tray device 21, concrete The pump 22 and the spray arm 23 are provided with support legs 24 below the mobile chassis 18, and the high-pressure cleaning pump 10, the cable tray device 21, the concrete pump 22, the spray arm 23 and the support legs 24 are controlled by the control system.

[0028] Such as figure 2 and image 3 As shown, the control system includes a concrete pump drive cylinder 12 and an S-valve swing valve cylinder 13, the concrete pump drive cylinder 12 and the S-valve swing valve cylinder 13 are connected to the concrete pump drive cylinder reversing solenoid valve 17 and...

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PUM

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Abstract

The invention relates to a control system, which is characterized in that a concrete pump drives a reversing electromagnetic valve of a cylinder to reverse after time is delayed for 500ms to 1000ms when the reversing electromagnetic valve receives a signal transmitted from a magnetic switch, an emergency pumping power control oil inlet port is connected with an emergency arm support operation preselector valve, a port P of the emergency arm support operation preselector valve is connected with a diesel driving high-pressure water pump preselector valve, a motor normal driving arm support, a supporting leg and cable reel operation function control oil inlet port, a port P of the diesel driving high-pressure water pump preselector valve is connected with a steering priority control valve, a port P of the steering priority control valve is connected with a brake priority control valve, and a port P of the brake priority control valve is connected with a hydraulic oil pump which is arranged on a chassis and used for controlling braking and steering functions. In another technical scheme, the invention provides self-travelling construction machinery with the control system. The control system and the self-travelling construction machinery meet requirements of concrete pumping, simultaneously are simple in structure of mechanisms, and save cost.

Description

technical field [0001] The invention relates to a system for controlling a self-propelled construction machine when the electric motor is powered off or when the internal combustion engine power of the walking chassis is used, and the self-propelled construction machine with the system. Background technique [0002] Self-propelled construction machinery is mainly used in underground engineering, geotechnical engineering, municipal engineering, especially water conservancy engineering and tunnel engineering construction. The self-propelled construction machinery is used for spray casting of rock walls after tunnel excavation, slope protection and water conservancy construction, and realizes the application of special requirements for concrete quick-setting. [0003] The self-propelled construction machinery involving concrete wet spraying unit is composed of five parts: concrete pump and spray arm, accelerator pumping system, air compressor system and chassis moving system. ...

Claims

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Application Information

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IPC IPC(8): E21D11/10E02B3/12E02D15/02E04G21/04
Inventor 程宇职毅沈勇明舒洋
Owner SANY AUTOMOBILE MFG CO LTD
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