Multifunctional control system of screed of spreader

A control system and machine screed technology, which is applied to fluid pressure actuation system components, mechanical equipment, roads, etc., can solve the problem that the screed cannot enter complete floating, and achieve the effect of solving road bumps or indentations

Pending Publication Date: 2018-08-24
XCMG CONSTR MACHINERY
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AI Technical Summary

Problems solved by technology

However, during the floating process of the screed, due to the back pressure in the upper and lower chambers of the lifting cylinder, the screed still cannot enter the "full floating" state, and in the control of the power assist function, only the left and right lifting cylinders can be boosted simultaneously, not independently power assist control

Method used

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  • Multifunctional control system of screed of spreader
  • Multifunctional control system of screed of spreader
  • Multifunctional control system of screed of spreader

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Embodiment Construction

[0046] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] Multifunctional control system for paver screed, including hydraulic control system and electrical control system;

[0048] Such as figure 1 The hydraulic control system shown includes a two-position four-way electromagnetic reversing valve 1, a three-position four-way electromagnetic reversing valve 1 2, a one-way throttle valve 3, a reversing pressure reducing valve 1 4, and a reversing pressure reducing valve 2 5. Two two-position four-way electromagnetic reversing valve two 6, hydraulic valve block 7 and solenoid valve one 10 installed in the rod chamber of the left lifting cylinder 8 and solenoid valve two 11 of the rod chamber of the right lifting cylinder 9 . The hydraulic valve block 7 includes a main oil circuit P, ...

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Abstract

The invention discloses a multifunctional control system of a screed of a spreader. A hydraulic control system comprises two-position four-way electromagnetic directional valve I, three-position four-way electromagnetic directional valve I, a one-way throttle valve, directional relief valve I, directional relief valve II, two-position four-way electromagnetic directional valve II, a hydraulic valve block and electromagnetic valves I and II mounted in rod cavities of left and right lifting cylinders. The system herein can implement functions, such as rising, falling, floating, locking, assisting and climb prevention for the screed of the spreader; in terms of control for assist functionality of the screed, the left and right lifting cylinders can provide assistance at the same time, or canprovide sole assistance separately; the problems such as pavement bulging or indentation can be effectively solved.

Description

technical field [0001] The invention relates to a paver control system, in particular to a multifunctional control system for a paver screed. Background technique [0002] In road construction and maintenance construction, paver, as one of the important construction equipment, is mainly used in the paving of stabilized soil materials or asphalt concrete materials for the base course and surface course of high-grade highways. The screed is the main working device of the paver, and its function control plays a vital role in the paving quality of the pavement during the entire paving operation. According to the construction needs of paving operations, the control of the screed is generally realized through the hydraulic system of the lifting cylinder, including functions such as raising, lowering, floating, locking, and power assistance. At present, most of the control of the screed function is only for the realization of a single function and requires an additional hydraulic ...

Claims

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Application Information

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IPC IPC(8): E01C19/12F15B13/06F15B21/02
CPCF15B13/06F15B21/02E01C19/12
Inventor 郑建丰高荣马冰李英瑞井然
Owner XCMG CONSTR MACHINERY
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