摘要随着我国科学技术发展的日新月异，充填开采技术广泛用于煤矿开采，矿业机械化利用率不断提高，开采后地面环境的破坏程度有效地控制在地表沉降的允许范围内，实现矿业绿色持续发展。针对煤矿采空区回采充填后充填体密实度不足，矸石不接顶等导致地表下降，地面环境遭受破坏的状况，本设计的关键是设计了一种用于采空区综采工作面的液压支架压实机构。压实机构的作用主要是增加矸石和粉煤灰等充填体的密实度，使充填体充分接顶。压实机构的结构是由挡煤座，压实铲板、夯实梁、夯实框架，两组夯实千斤顶，两组调高千斤顶组成。两组夯实千斤顶在调高千斤顶的作用下，以挡煤座铰接轴为中心上下旋转，通过夯实千斤顶的往复伸缩动作对充填物料进行压实，使充填体密实及充分接顶。本设计的特点是将电液控制技术应用于充填支架液压系统，将液压手动控制变换为电液控制，以实现充填捣实过程的自动控制。73857

该设计有18图幅，表5个，参考文献26篇。

毕业论文关键词：液压支架  压实机构  液压系统  电液控制

Design of backfill compaction machine in coal mine

Abstract With the rapid development of science and technology in China, filling mining technology widely used in coal mining, mining machinery utilization rate will continue to improve, the ground environment after the destruction of the ground should be effectively controlled in the range of surface subsidence allowed, to realize green mining and sustainable development。 Due to the conditions after the backfilling at coal mining goaf, such as the surface subsidence that lead to by filling compaction degree insufficient and the condition of bad ground environment。 The design main designed a new compaction machine of hydraulic support for gangue filling。 Compaction mechanism is mainly to increase the density of gangue and coal ash。 The compaction mechanism is composed of refuse seat block, a compacted shovel plate, a compacted beam, a compacted frame, two sets of the compacted hydraulic cylinder, and two sets of height adjustment hydraulic cylinder。 Two sets of the compacted hydraulic cylinder in two sets of height adjustment hydraulic cylinder under the action of horizontal strengthened, after the hinge axis as the center and rotation, through the horizontal reciprocating expansion of the compacted hydraulic cylinder, to achieve the ideal filling compactness and reliable effect。 Feature of the design is the electro-hydraulic control technology for filling hydraulic support hydraulic system, hydraulic manual control is converted into electro-hydraulic control, in order to achieve automatic control filling tamping process。

This design has 18 figures, 5tables, 26 references。

Key words: hydraulic support; compaction machine; hydraulic system; electro-hydraulic control

目录

摘要 I

Abstract II

目录 III

图清单 V

表清单 V

变量注释表 VI

1绪论 1

1。1课题背景介绍 1

1。2选题目的与意义 2

1。3课题研究现状 2

1。4研究内容与技术路线 5

2充填液压支架的架型选择 6

2。1充填液压支架的架型选择原则 6

2。2液压支架的选型设计