The utility model relates to a guide drilling tool for a horizontal directional pneumatic rock drilling rig, which comprises a casing in which a pneumatic motor is mounted through a supporting device, and the output shaft of the pneumatic motor is mounted with a main shaft, which is connected with the casing through a bearing and a sealing ring, and the end of the main shaft extends to the outer casing, and the main shaft is connected with the outer casing. The hammer head is mounted at the head of the main shaft through the impactor; the rear of the shell is biased to be mounted with a fabricating oblique short joint, and the rear of the fabricating oblique short joint is mounted with a probe rod chamber. The hammer head is connected with the output shaft of the pneumatic motor through the impactor, and the compressed air supplied by the hole in the drill pipe, and the output shaft of the pneumatic motor drives the impactor and the hammer head to rotate, and then the hammer head is fed by the feed force and the rotating torque of the drill. When the hammer head is reversed, the direction of the oblique short connection is adjusted according to the construction requirements, and the drill pipe does not rotate and is straight. Push, the hammer will be driven by the pneumatic motor and impactor along the direction of the oblique short connection, to achieve a reversal, good reliability, high efficiency.
【技术实现步骤摘要】
水平定向气动岩石钻机导向钻具
本技术涉及工程施工
,尤其是一种水平定向气动岩石钻机导向钻具。
技术介绍
现有技术中,水平定向穿越岩石地层施工导向钻具一般采用泥浆马达带动钻头旋转,其工作原理是:钻杆与泥浆马达同时旋转时,导向钻头直线钻进;钻杆不转,泥浆马达旋转时,通过转向弯头实现变向,这时导向钻头按设计轨迹的方向前进。泥浆马达转进需要消耗大量泥浆,若岩石施工中遇到熔洞,大量泥浆从熔洞流失,增加导向费用,带来更大的环境污染。由于泥浆马达寿命较短,扭矩较小,造成钻孔效率低下,泥浆马达经常更换检修,给施工造成很大不便。另外,对于大管径长输岩石管道,一般采用有线导向形式,这种导向方式因为外接信号线,所以不能连续作业,每根钻杆安装时,都要人工接一次信号线,工序繁琐,拖延工期。另外,由于施工管道距离较长,信号线在钻杆中不停的受到泥浆的浸蚀及钻杆壁的磨损,容易磨坏绝缘层漏电,导致信号中止,造成工程返工,给整个施工带来不必要的损失。
技术实现思路
本申请人针对上述现有生产技术中的缺点,提供一种结构合理的水平定向气动岩石钻机导向钻具,从而大大提高工作可靠性,提高工作效率。本技术所采用的技术方案如下:一种水平定向气动岩石钻机导向钻具,包括外壳,所述外壳内通过支撑装置安装有气动马达,所述气动马达的输出轴上安装有主轴,所述主轴通过轴承和密封圈与外壳连接,所述主轴的端部延伸至外壳外部,并在主轴的头部通过冲击器安装锤头;所述外壳的后部偏向安装有造斜短接,所述造斜短接的后部安装探棒室。作为上述技术方案的进一步改进:造斜短接的中心线与垂直中心线之间的角度为178°。所述外壳上还安装有排气逆止 ...
【技术保护点】
1.一种水平定向气动岩石钻机导向钻具,其特征在于:包括外壳(6),所述外壳(6)内通过支撑装置安装有气动马达(7),所述气动马达(7)的输出轴上安装有主轴(3),所述主轴(3)通过轴承(5)和密封圈(4)与外壳(6)连接,所述主轴(3)的端部延伸至外壳(6)外部,并在主轴(3)的头部通过冲击器(2)安装锤头(1);所述外壳(6)的后部偏向安装有造斜短接(9),所述造斜短接(9)的后部安装探棒室(10)。
【技术特征摘要】
1.一种水平定向气动岩石钻机导向钻具,其特征在于:包括外壳(6),所述外壳(6)内通过支撑装置安装有气动马达(7),所述气动马达(7)的输出轴上安装有主轴(3),所述主轴(3)通过轴承(5)和密封圈(4)与外壳(6)连接,所述主轴(3)的端部延伸至外壳(6)外部,并在主轴(3)的头部通过冲击器(2)安装锤头(1);所述外壳(6)的后部偏向安装有造斜短接(9),所述造斜短接(9)的后部安装探棒室(10)。2.如权利...
【专利技术属性】
技术研发人员:曹良,
申请(专利权)人:苏州科艺油气工程设备服务有限公司,
类型:新型
国别省市:江苏,32
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