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Device for adaptive control of ground clearance of front discharge door of pavement milling machine

An automatic control device, the technology of the height above the ground, which is applied in the control, road, road and other directions without feedback, to avoid the friction damage of the conveyor belt and the ground, prolong the service life, and achieve the effect of high control precision.

Inactive Publication Date: 2010-07-14
江苏华通动力重工有限公司(中外合资)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing milling machine control system is still unable to meet this requirement

Method used

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  • Device for adaptive control of ground clearance of front discharge door of pavement milling machine
  • Device for adaptive control of ground clearance of front discharge door of pavement milling machine
  • Device for adaptive control of ground clearance of front discharge door of pavement milling machine

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Embodiment Construction

[0008] As shown in the figure, the device includes a conveyor bracket 2 connected with the front discharge door 1 of the milling machine, a hydraulic cylinder 3 that can drive the front discharge door and the conveyor bracket up and down, and a hydraulic cylinder that can control the lifting action of the hydraulic cylinder. The solenoid valve YV1 is installed at the bottom of the conveyor bracket with a position sensor SQ1 for detecting the road surface; the device also includes a controller 4 that can output rising and falling control commands to the solenoid valve YV1; the position sensor SQ1 can be controlled by the controller The signal input part outputs the rising or falling control signal; the control signal input part of the controller is also connected with a manual selection switch SA2 that can input the rising or falling control signal; the controller is also connected to the position sensor SQ1 through a state switch SA1, with To control the position sensor to work ...

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Abstract

The invention relates to a device for adaptive control of the ground clearance of a front discharge door of a pavement milling machine, which comprises a conveyer bracket connected with the front discharge door of the milling machine, a hydraulic cylinder capable of driving the front discharge door and the conveyer bracket to ascend and descend, and an electromagnetic valve capable of controlling lifting actions of the hydraulic cylinder, wherein the bottom of the conveyer bracket is provided with a position sensor; the device also comprises a controller capable of outputting ascending and descending control commands to the electromagnetic valve; the position sensor can input part of the output ascending or descending control signals to the control signals of the controller; a control signal input part of the controller is also connected with a manual option switch capable of inputting ascending or descending control signals; and the controller is also connected with the position sensor through a state switch. The device can automatically adjust the heights of the front discharge door and a conveyer of the pavement milling machine, and simultaneously has the advantages of high detection accuracy, high use reliability and long service life.

Description

Technical field [0001] The invention belongs to road engineering machinery and relates to the structure of a front output road milling machine, in particular to an adaptive control device for the height of the front discharge gate of the road milling machine. Background technique [0002] When the front output road milling machine with recycling device is in the milling work, the milled waste is first thrown out from the front discharge port through the milling drum, falls on the conveyor belt, and then is conveyed to the material by the conveyor belt Transported away in the car. Because the output gate and conveyor of the milling machine are at the front end of the milling drum, in the case of complex damaged roads, the height of the output gate and the conveyor must be controlled in real time to ensure that the gate and the conveyor are The conveyor can be raised and lowered with the road surface to avoid the friction between the road surface and the damage of the conveyor bel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/088G05D3/10
Inventor 吴劲松唐玉庆陈飞王翠军杨洋范蕾
Owner 江苏华通动力重工有限公司(中外合资)
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