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大慶石油學院
畢業(yè)設(shè)計（論文）任務(wù)書
題目 MG100型錨桿鉆機液壓系統(tǒng)設(shè)計
專業(yè) 機自03－4 學號030401140407 姓名 刁玉才
主要內(nèi)容、技術(shù)參數(shù)、基本要求、主要參考資料等：
1、 主要內(nèi)容
錨桿鉆機的總體方案設(shè)計；
錨桿鉆機的液壓動力裝置設(shè)計分析；
錨桿鉆機的液壓系統(tǒng)原理設(shè)計分析；
錨桿鉆機的液壓系統(tǒng)的配件與三維布管設(shè)計。
2、 技術(shù)參數(shù)
鉆孔直徑 100～200 mm；
鉆頭轉(zhuǎn)速 0～80r/min；
鉆頭扭矩 900Nm；
鉆頭行程 2000～2500 mm ；
推力 50～60 kN；
沖擊頻率 2000～2200次/min ；
系統(tǒng)壓力 25MPa；
發(fā)動機 100kW；
行走方式 履帶式；
重量 12000～14000 kg
3、基本要求
設(shè)計機器總體、液壓原理圖、液壓配件圖、液壓裝配圖、機器立體圖等，折合0號圖紙5張；
設(shè)計計算書40頁；
外文資料翻譯5000字。
4、主要參考資料
相關(guān)三維設(shè)計與仿真軟件及參考書籍；
相關(guān)機械設(shè)計手冊、液壓手冊、網(wǎng)上期刊文獻、相關(guān)樣本等。
完成期限： 4月9日～6月26日
指導教師簽名：
專業(yè)負責人簽名：
2007年 4月3日
大慶石油學院學生開題報告表
課題名稱
MG100型錨桿鉆機液壓系統(tǒng)設(shè)計
課題來源
北京建筑機械化研究院
課題類型
A
指導教師姓名
趙偉民
學生姓名
刁玉才
學 號
030401140407
專 業(yè)
機械設(shè)計制造及其自動化
開題報告內(nèi)容：（調(diào)研資料的準備，設(shè)計目的、要求、思路與預期成果；任務(wù)完成的階段內(nèi)容及時間安排；完成設(shè)計（論文）所具備的條件因素等。）
一 前期調(diào)研
鉆孔機械是地下水開采及基本建設(shè)基礎(chǔ)施工必不可少的設(shè)備， 鉆機產(chǎn)品也隨之進入快速發(fā)展的階段。近年來， 國內(nèi)的許多廠家相繼生產(chǎn)出各種形式的反循環(huán)鉆機， 應(yīng)用于全國各地的橋梁、建筑、水利等工程施工過程中。但從現(xiàn)有的國產(chǎn)沖擊反循環(huán)鉆機的使用情況來看， 仍存在一些問題需要認真討論與分析， 并在技術(shù)上作出相應(yīng)的改進和提高， 才能更有利于我國鉆機制造業(yè)的發(fā)展， 并但從現(xiàn)有的國產(chǎn)沖擊反循環(huán)鉆機的使用情況來看，進一步提高我國同類鉆機的設(shè)計和制造水平。其中錨桿鉆機是實現(xiàn)錨桿支護技術(shù)的重要機械設(shè)備,隨著錨桿支護技術(shù)的飛速發(fā)展,用于鉆鑿錨桿孔的錨桿鉆機也得到了快速發(fā)展。展望它的發(fā)展,有助于不斷促進錨桿鉆機設(shè)備的技術(shù)進步,使其更加適應(yīng)現(xiàn)代支護技術(shù)的需要。
以往鉆機的設(shè)計研制過程,比較注重鉆機本身的輸出特性,一味通過追求盡可能大的轉(zhuǎn)速和轉(zhuǎn)矩來提高鉆機的破巖鉆進能力。但對于單體錨桿鉆機來說,要求體積小,重量輕,因而不能無限止地提高轉(zhuǎn)速、轉(zhuǎn)矩和推力。只有最大限度地提高鉆機輸出功率的利用率,即提高破巖鉆削效率,才能在有限的輸出功率下取得較高的鉆進速度。
隨著錨噴支護技術(shù)的推廣和應(yīng)用，作為錨噴施工工具的錨桿鉆機的優(yōu)劣直接影響著錨桿孔施工和生產(chǎn)效率，錨桿鉆機按動力源分電動錨桿鉆機、氣動錨桿鉆機和液壓錨桿鉆機。其中電動錨桿鉆機的輸出特性較差,鉆孔速度低,電機可靠性及防水性存在嚴重問題,尚無良好的推進方式。近期尚難大量用于井下錨桿支護; 國產(chǎn)氣動錨桿鉆機的水平逐步提高,齒輪氣動馬達式已基本能代替進口產(chǎn)品,但玻璃鋼支腿等部分的可靠性應(yīng)進一步提高;柱塞馬達式錨桿鉆機尚處于小批量生產(chǎn)階段,尚需進一步考核; 液壓錨桿鉆機輸出的扭矩高于氣動錨桿鉆機,與掘進機配套是較優(yōu)越的工作方式。但輸出扭矩仍然偏低,液壓系統(tǒng)容易發(fā)熱。由于以礦物油為工作介質(zhì),在煤礦井下使用中存在安全隱患。由于液壓錨桿鉆機具有扭矩大、鉆削破巖性好等特點，從而得到推廣應(yīng)用。
二 參考文獻
[1]劉忠，龍國鍵，褚福磊，楊國平.國內(nèi)外液壓沖擊機械的發(fā)展研究 .建筑機械
1993年第9期.
[2]高瀾慶.國外鑿巖(穿孔)設(shè)備的發(fā)展動態(tài). 礦山機械.2000年第3期
[3]蔡玲，王慶堅.關(guān)于國內(nèi)鉆機結(jié)構(gòu)改進方向初探. 廣東交通職業(yè)技術(shù)學院學報、第4卷 第3期2005年9月
[4]孫正心.對錨桿鉆機研制中幾個問題的探討. 煤炭科學技術(shù). 第27卷 第12期1999年12月
[5]劉道禮，孫菊花，丁福軍，顧兵.工程錨桿鉆機結(jié)構(gòu)的設(shè). 煤礦機電. 2003年第5期
[6]吳剛，杜長龍.沖擊旋轉(zhuǎn)式錨桿鉆機設(shè)計研究. 煤炭技術(shù). 第20卷第9期2001年9月
[7]王吉安. 淺析錨桿鉆機的研制現(xiàn)狀. 煤礦機械.2004年第9期
[8]鄧樂，毋林. 煤礦錨桿鉆機的現(xiàn)狀與發(fā)展方向. 中州煤炭.1995年第期
[9]馮超旭. 機掘巷道錨桿支護技術(shù)現(xiàn)狀分析. 煤礦機械.2002年第5期
[10]徐成富. 掘進機錨桿鉆機共泵液壓系統(tǒng)應(yīng)用. 煤礦機械.第27卷第8期2006年8月
[11]吉軍，原思聰，王發(fā)展. 基于遺傳算法的無法液壓沖擊旋轉(zhuǎn)型錨桿鉆機動力頭優(yōu)化設(shè)計. 煤礦機械.第27卷第11期2006年11月
[12]周明連，秦庚仁，朱家緯. 液壓錨桿鉆機設(shè)計. 煤礦機械.第3卷第3期
[13]機械設(shè)計手冊. 第4卷.機械工業(yè)出版社.
[14]張利平. 液壓傳動系統(tǒng)及設(shè)計. 化學工業(yè)出版社.
三 設(shè)計目的
隨著液壓鉆孔機械十幾年的發(fā)展與實踐，日益顯示了其優(yōu)越性，打破了長期以來氣動鉆機的統(tǒng)治地位。與氣動鉆孔機械相比，液壓鉆機鉆孔速度提高兩倍以上，噪聲降低20－25dB，功率消耗降低1/3，消除了工作面的油霧和水汽。近年來國內(nèi)外液壓鉆孔機械的發(fā)展相當迅速，品種(或型號)不斷增加，更新?lián)Q代速度也很快。
隨著國民經(jīng)濟的高速發(fā)展，為滿足地質(zhì)災害治理及各種基本建設(shè)的需要，特別是西部大開發(fā)的進行，大型建筑、高速公路和地質(zhì)災害治理工程的上馬，特別是三峽工程，小灣、龍灘水電工程等大型水力工程的進行，對巖土錨固鉆機的需求量越來越大，同時對其性能的要求也越來越高。液壓鉆機由于其布置靈活，鉆進參數(shù)調(diào)整簡易，早已成為國外鉆機廠的主導產(chǎn)品。以往液壓錨桿鉆機，整個體積較大，分體性能不好，造價較高，特別是目前西部大開發(fā)建設(shè)中的幾處大型水電工程，其邊坡治理、巖土錨固都是在高邊坡上進行的，有的搭架高達100m。為此，在以往液壓錨桿鉆機的基礎(chǔ)上，研制、開發(fā)MG100型液壓錨固鉆機。
四 設(shè)計要求與設(shè)計思路
1 設(shè)計要求：
錨桿鉆機的總體設(shè)計；
錨桿鉆機的液壓系統(tǒng)原理分析與設(shè)計；
錨桿鉆機的液壓系統(tǒng)的動力特性分析；
錨桿鉆機的液壓系統(tǒng)的三維布管設(shè)計
2 設(shè)計思路：
本課題所涉及的錨桿鉆機液壓系統(tǒng)設(shè)計是液壓錨桿鉆機的重要組成部分，它意在研究液壓錨桿鉆機的液壓原理與輔助部分，總體方案包括主機和泵站的液壓部分及接頭與管路等。主機的液壓部分主要由液壓馬達、沖擊液缸、主臂液缸、回轉(zhuǎn)液缸及支腿液缸等組成，液壓泵站主要由液壓泵、溢流閥、油箱和濾油器等組成。液壓馬達、沖擊液缸和支腿作為鉆機的執(zhí)行元件,其中前兩個中一個作旋轉(zhuǎn)運動,輸出扭矩;一個作直線運動,起到?jīng)_擊碎石機加壓的功能，支腿也作直線運動，作為鉆機工作時的支撐。主臂液缸及回轉(zhuǎn)液缸起到確定鉆進位置及固定鉆桿的功能，通過它們可以實現(xiàn)在固定鉆機底盤的情況下，方便的改變鉆進位置。液壓泵站為液壓系統(tǒng)提供具有一定壓力的液壓油。通過對錨桿鉆機液壓系統(tǒng)設(shè)計，進而更好的推進液壓錨桿鉆機的推廣應(yīng)用。
五 預期成果
設(shè)計完成MG100型錨桿鉆機機器總體及液壓原理圖；鉆機中所應(yīng)用的液壓配件圖；MG100型錨桿鉆機的液壓裝配圖及機器立體圖；完成液壓配件的選型計算；完成設(shè)計說明書。
六 任務(wù)完成的階段內(nèi)容及時間安排
4月9日～4月21日 （第1－2周）錨桿鉆機總體設(shè)計；
4月22日～5月12日（第3－5周）錨桿鉆機的液壓系統(tǒng)原理分析與設(shè)計；
5月13日～6月2日（第6－8周）錨桿鉆機的液壓系統(tǒng)配件圖設(shè)計；
6月3日～6月16日（第9－10周）錨桿鉆機的液壓系統(tǒng)三維布管設(shè)計；
6月17日～6月30日（第11－12周）論文寫作與整理，準備答辯。
七 完成設(shè)計所具備的條件因素
1.通過四年的本科學習已經(jīng)掌握了基礎(chǔ)和專業(yè)基礎(chǔ)知識，具有一 定的分析和解決問題的能力；
2.較熟練的掌握和運用計算機操作系統(tǒng)以及相關(guān)軟件，并正在學習專業(yè)軟件;
3.可以運用所學外語知識查閱外文資料；
4.熟練的運用所學文獻檢索知識查閱有關(guān)專業(yè)資料；
5.通過分析討論對所設(shè)計的內(nèi)容有了全面了解。
指導教師簽名： 日期：
1、課題來源：課題來源分為結(jié)合實際課題和自擬課題兩種，結(jié)合實際課題中來源于科研課題的要填寫確切基金項目、企事業(yè)單位項目，不能寫橫向、縱向課題等。
2、課題類型：A—工程設(shè)計；B—科學實驗；C—軟件開發(fā)；D—理論研究；E—應(yīng)用研究。
大慶石油學院本科生畢業(yè)設(shè)計（論文）
摘 要
隨著高、重、大建筑的增多，錨桿支護技術(shù)應(yīng)用越來越廣泛，隨之鉆鑿錨孔的錨桿鉆機也得到了快速發(fā)展。
本文針對現(xiàn)有錨桿鉆機存在的堅硬夾層及堅硬圍巖等的不適應(yīng)問題，在收集、查閱大量資料的基礎(chǔ)上，提出了沖擊旋轉(zhuǎn)式液壓錨桿鉆機方案,并對其進行設(shè)計研究，因錨桿鉆機的機構(gòu)比較復雜，所以重點放在錨桿鉆機的液壓系統(tǒng)設(shè)計。首先，在對沖擊旋轉(zhuǎn)鉆孔破巖機理進行分析的基礎(chǔ)上,結(jié)合沖擊旋轉(zhuǎn)式液壓錨桿鉆機的總體方案設(shè)計，制定出沖擊旋轉(zhuǎn)式液壓錨桿鉆機的液壓工作原理方案，并對組成液壓系統(tǒng)的各個子系統(tǒng)的原理和特點作了詳細的分析。在此基礎(chǔ)上，對錨桿鉆機的液壓動力裝置和系統(tǒng)原理進行了具體設(shè)計，通過計算選取了各主要元件，利用三維設(shè)計軟件進行管路連接和系統(tǒng)布置。
關(guān)鍵詞：錨桿鉆機；液壓系統(tǒng)；回轉(zhuǎn)沖擊器
Abstract
Suspension roof support technical application increasingly abroad in company with high, weightiness, large structural manifold, came along of the jumbolter with anchor eye too get know clearly instant development.
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Key words:Anchor drilling；Hydraulic system；Rotatory impactor
大慶石油學院本科生畢業(yè)設(shè)計（論文）
目 錄
第1章 緒論…………………………………………………………………………1
1.1 選題的背景、意義及目的……………………………………………1
1.2 國內(nèi)外研究狀況及分析………………………………………………3
1.3 課題所涉及的內(nèi)容……………………………………………………7
1.4 本章小結(jié)………………………………………………………………7
第2章 錨桿鉆機的總體設(shè)計………………………………………………………8
2.1 底盤……………………………………………………………………8
2.2 傳動方式………………………………………………………………8
2.3 鉆進方式………………………………………………………………9
2.4 主臂……………………………………………………………………10
2.5 夾緊機構(gòu)………………………………………………………………10
2.6 裝卸鉆桿裝置…………………………………………………………11
2.7 本章小結(jié)………………………………………………………………12
第3章 鉆機液壓動力裝置設(shè)計……………………………………………………14
3.1 傳動設(shè)計………………………………………………………………14
3.2 液壓沖擊器設(shè)計………………………………………………………17
3.3 本章小結(jié)………………………………………………………………23
第4章 錨桿鉆機液壓系統(tǒng)設(shè)計分析………………………………………………24
4.1 總體液壓原理圖………………………………………………………24
4.2 原理圖的各部分原理分析……………………………………………25
4.3 本章小節(jié)………………………………………………………………28
第5章 液壓系統(tǒng)配件的計算與選取………………………………………………29
5.1 動力頭加壓馬達………………………………………………………29
5.2 主臂伸縮油缸…………………………………………………………29
5.3 裝卸鉆桿油缸…………………………………………………………30
5.4 變幅油缸………………………………………………………………31
5.5 變角油缸………………………………………………………………32
5.6 支腿油缸………………………………………………………………32
5.7 泵的選取………………………………………………………………33
5.8 本章小結(jié)………………………………………………………………34
第6章 整機穩(wěn)定性分……………………………………………………………35
6.1 質(zhì)量參數(shù)………………………………………………………………35
6.2 穩(wěn)定性計算……………………………………………………………36
6.3 本章小結(jié)………………………………………………………………38
結(jié)論 …………………………………………………………………………………49
參考文獻 ……………………………………………………………………………40
致謝 …………………………………………………………………………………41
II
大慶石油學院本科生畢業(yè)設(shè)計（論文）
Anchor drilling
Document Type and Number:
United States Patent 4201270
Abstract:
An operator controlled roof bolter with a flexible shaft drill and a roof bolt inserter for drilling and inserting a roof bolt into an unsupported roof of a mine while the operator is positioned at an outby station under a supported roof. The flexible shaft roof drill is constrained to a frame of the roof bolter for pivoting movement between a rest position and a working position. The roof bolt inserter is mounted on a slide for linear movement and limited rotational movement between a retracted position and an extended position for positioning a roof bolt held by the inserter into registration with a hole drilled by the roof drill.
Inventors:
Ribich, William A. (Lexington, MA, US)
Hug, Hans A. (Weston, MA, US)
Bellows, Alfred H. (Belmont, MA, US)
Application Number:
906237
Filing Date: 05/15/1978
Publication Date: 05/06/1980
Primary Class: 173/193
Other Classes: 81/57.25, 81/57.41, 173/46, 173/52, 405/259.1, 405/303.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to the supporting of underground mine roofs and, more particularly, is directed towards an apparatus for drilling holes in the roof of a mine and for inserting roof bolts into such holes.
2. Description of the Prior Art
In underground mines, the roof is supported by roof bolts which are inserted into holes drilled into the roof strata. An apparatus for drilling holes having a depth substantially greater than the height of the mine passageway in which the apparatus is located is described in U.S. Pat. No. 4,057,115. An apparatus for inserting roof bolts into the drilled holes is described in U.S. Pat. No. 4,003,233.
Although progress has been made in roof bolting apparatus, roof bolting remains one of the most hazardous mining occupations for several reasons. The operator inserting the roof bolt is stationed inby at an area in which the roof is unsupported. It is the operator's task to drill and to insert roof bolts in this unsupported area. Consequently, the operator is exposed to the hazard of having sections of the unsupported roof fall on him. Mine personnel have been injured by flying objects from the exposed rotating drill steel and tools employed to tighten the roof bolts. Workers are also exposed to the risk of being caught on and pulled into the rotating portions of the mining apparatus.
Attempts to develop roof bolters which are capable of remotely installing bolts have been met with limited success even for the simplest case when the bolts are shorter than the height of the mine passageway. Such attempts have resulted in complex and costly systems which suffer from low reliability due to many moving parts and continual readjustment. A need has arisen for an improved roof bolting system which does not suffer from the heretofore mentioned disadvantages.
What is claimed is:
1. An operator controlled roof bolting system for drilling holes in the roof strata of a mine and for inserting roof bolts into the drilled holes while the operator is in a safe area, said system comprising:
(a) a frame with an outby operator's station;
(b) roof drill means for drilling a hole in the roof strata, said roof drill means mounted to said frame for pivotal movement about an axis between a rest position and a working position;
(c) first means operatively connected to said roof drill means and said frame for pivotally moving said roof drill means about said axis between said rest position and said working position:
(d) roof bolt inserter means for inserting a roof bolt into a hole drilled in the roof strata by said roof drill means, said roof bolt inserter means mounted to said frame for movement between a retracted position and an extended position, said roof bolt inserter means including slide means mounted to said frame for pivoting movement about said axis; and
(e) second means operatively connected to said roof bolt inserter means and said frame for moving said roof bolt inserter means between said retracted position and said extended position, said roof bolt inserter means proximate to said operator's station when in said retracted position, whereby the operator can place a roof bolt in said roof bolt inserter means while remaining at said operator's station.
2. The system as claimed in claim 1 wherein said roof drill means is a flexible shaft roof drill.
3. The system as claimed in claim 1, wherein said roof drill means is a longer-than-seam height drill.
4. The system as claimed in claim 1 wherein said roof bolt inserter means includes a working head mounted to said slide means, said slide means pivotally mounted to said frame, third means operatively connected to said slide means and said frame for pivotally moving said slide means about said axis.
5. The system as claimed in claim 1, including a plate for pushing a roof bolt inserted into the drilled hole and plate means for moving said plate into engagement with the roof bolt, said plate means connected to said frame and said plate.
6. An operator controlled roof bolting system for drilling holes in the roof strata of a mine and for installing roof bolts into the drilled holes while the operator is in a safe or supported area, said system comprising: (a) a frame;
(b) roof drill means for drilling a hole in the roof strata, said roof drill means configured to drill a hole having a depth which is greater than the height of the mine, said roof drill means mounted to said frame for pivoting movement about an axis between a rest position and a working position;
(c) first actuator means operatively connected to said roof drill means and said frame for pivotally moving said roof drill means about said axis;
(d) roof bolt inserter means for inserting a roof bolt into a hole drilled in the roof strata by said roof drill means, said roof bolt inserter means including slide means and a working head, said slide means mounted to said frame for pivoting movement about said axis, said slide means linearly movable between a retracted position and an extended position, said working head carried by said slide means and linearly movable between said retracted position and said extended position, said working head configured to insert a roof bolt having a length which is no longer than the height of the mine into a hole drilled by said roof drill means, said drill means and said roof bolt inserter means independently movable about said axis;
(e) second actuator means operatively connected to said slide means for linearly moving said slide means between said retracted position and said extended position;
(f) third actuator means operatively connected to said slide means and said frame for pivotally moving said working head about said axis;
(g) said roof bolt inserter proximate to said operator's station when in said retracted position, whereby the operator can place a roof bolt in said roof bolt inserter while remaining at said operator's station.
7. The system as claimed in claim 6 wherein said roof drill means includes a drill and an arm, said drill carried by said arm, fourth actuator means operatively connected to said drill and said arm for moving said drill relative to said arm, said drill constrained for substantially vertical movement relative to said arm, said arm pivotally mounted to said frame for movement about said axis.
8. The system as claimed in claim 7 including torquer means mounted to said working head, said torquer means configured to engage the inserted roof bolt and to tighten the roof bolt to a perdetermined torque.
9. An operator controlled roof bolting system for drilling holes in the roof strata of a mine and for inserting roof bolts into the drilled holes while the operator is in a safe area, said system comprising:
(a) a frame with an outby operator's station;
(b) roof drill means for drilling a hole in the roof strata, said roof drill means pivotally mounted to said frame for pivotal movement about a first axis between a rest position and a working position;
(c) first means operatively connected to said roof drill means and said frame for pivotally moving said roof drill means about said first axis between said rest position and said working position;
(d) roof bolt inserter means for inserting a roof bolt into a hole drilled in the roof strata by said roof drill means, said roof bolt inserter means slidably mounted to said frame for slidable movement between a retracted position and an extended position; said roof bolt inserter means including a working head and slide means, said slide means pivotally mounted to said frame;
(e) second means operatively connected to said roof bolt inserter means and said frame for slidably moving said roof bolt inserter means between said retracted position and said extended position; and
(f) third means operatively connected to said slide means and said frame for pivotally moving said slide means about said first axis;
(g) said roof bolt inserter means proximate to said operator's station when in said retracted position, whereby the operator can place a roof bolt in said roof bolt inserter means while remaining at said operator's station.
10. An operator controlled roof bolting system for drilling holes in the roof strata of a mine and for inserting roof bolts into the drilled holes while the operator is in a safe area, said system comprising:
(a) a frame with an outby operator'station;
(b) a flexible shaft roof drill for drilling a hole in the roof strata, said roof drill mounted to said frame for movement between a rest position and a working position;
(c) first means operatively connected to said roof drill and said frame for moving said roof drill between said rest position and said working position;
(d) roof bolt inserter means for inserting a roof bolt into a hole drilled in the roof strata by said roof drill, said roof bolt inserter means mounted to said frame for movement between a retracted position and an extended position;
(e) second means operatively connected to said roof bolt inserter means and said frame for moving said roof bolt inserter means between said retracted position and said extended position, said roof bolt inserter means proximate to said operator's station when in said retracted position, whereby the operator can place a roof bolt in said roof bolt inserter means while remaining at said operator's station;
(f) third means mounted to said frame; and
(g) a plate mounted to said third means, said plate configured to push a roof bolt inserted into the drilled hole, said third means moving said plate into engagement with the roof bolt.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a roof bolting system which does not suffer from the heretofore mentioned disadvantages and limitations. A further object of the invention is to provide a simple and reliable roof bolting system for remote drilling and insertion of roof bolts, particularly bolts that are longer than the height of the mine passage.
Another object of the invention is to provide a simple and reliable roof bolting system with an outby operator's station for remote drilling and insertion of roof bolts in which an inserter is moved rearwardly towards an operator for reception of the bolt rather than having the bolt fed forwardly to the inserter from the operator. Such a system includes a rugged mechanism for moving the inserter which is simpler and more reliable than bolt feed systems.
Yet another object of the invention is to provide an operator controlled roof bolter with a flexible shaft roof drill or other longer than seam height drill and a roof bolt inserter for drilling and inserting a roof bolt into an unsupported roof of a mine while the operator is outby and is positioned under a supported roof. The flexible shaft roof drill is mounted to a frame of the roof bolter and is constrained for pivoted movement between a rest position and a working position. The roof bolt inserter is configured to bend and feed roof bolts having a length that is greater than the height of the mine passageway. A head of the roof bolt inserter is mounted on a slide for linear movement and limited rotational movement between a retracted position and an extended position in order to align the advancing roof bolt with a hole drilled in the roof strata of the mine by the flexible shaft roof drill. In the retracted position, the inserter is in place to receive a roof bolt from an operator without requiring the operator to leave a supported or safe area. The hole is drilled when the roof drill is in its working position. Upon completion of the drilling step, the roof drill is pivoted to its rest position and the roof bolter inserter is moved to its extended position. A controller is provided for aligning the roof bolt and the drilled hole. A hydraulically actuated plate pushes the inserted roof bolt further into the drilled hole. A torquer engages the inserted roof bolt and tightens the roof bolt to effect the roof support.
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