【摘要】：平衡千斤頂是兩柱掩護(hù)式液壓支架的重要調(diào)控部件,常規(guī)雙向鎖控制模式易造成安全閥頻繁噴液,不能很好適應(yīng)自動(dòng)化控制要求。利用AMESim軟件建立了某兩柱掩護(hù)式液壓支架剛-液平面運(yùn)動(dòng)模型,模擬移架前后頂板5°傾角變化條件,比較了傳統(tǒng)雙向鎖控制模式和差動(dòng)控制、低壓控制和浮動(dòng)雙向鎖控制模式下液壓支架姿態(tài)和平衡千斤頂響應(yīng)過(guò)程。結(jié)果表明:后3種控制模式均可有效避免安全閥開(kāi)啟,降壓效果方面低壓控制最優(yōu)、浮動(dòng)雙向鎖次之,差動(dòng)控制有噴液風(fēng)險(xiǎn);非主動(dòng)調(diào)控模式下,差動(dòng)控制和低壓控制模式頂梁前端先接頂,浮動(dòng)雙向鎖控制頂梁后端先接頂。研究結(jié)果為平衡千斤頂控制系統(tǒng)的選型和優(yōu)化提供新參考。
[Abstract]:Balance Jack is an important control component of two-column shield hydraulic support. The conventional two-way lock control mode can easily cause frequent injection of relief valve, which can not meet the requirements of automatic control. The rigid-liquid plane motion model of a two-column shield hydraulic support is established by using AMESim software. The changing conditions of 5 擄inclination of roof before and after moving the frame are simulated, and the traditional two-way lock control mode and differential control are compared. Low-pressure control and floating two-way lock control mode of hydraulic support attitude and balance Jack response process. The results show that the latter three control modes can effectively avoid the opening of the relief valve, the low pressure control is the best in the effect of lowering the pressure, the floating bidirectional lock is the second, and the differential control has the risk of injection. The front end of the top beam is connected first with the differential control and the low voltage control mode, and the back end of the top beam is first connected with the floating bidirectional lock. The results provide a new reference for the selection and optimization of balanced Jack control system.
【作者單位】： 天地科技股份有限公司開(kāi)采設(shè)計(jì)事業(yè)部;煤炭科學(xué)研究總院開(kāi)采研究分院;
【基金】：國(guó)家自然基金(山西煤基低碳聯(lián)合基金)重點(diǎn)支持項(xiàng)目(U1610251)
【分類(lèi)號(hào)】：TD355.4
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本文編號(hào)：2227737