冲击钻头

The present invention relates to a drill bit intended for percussive rock drilling.

本发明涉及一种用于冲击岩石钻孔的钻头。

The purpose of the check valve is to prevent impurities from penetrating the rock drill when pressedair is shut off.

卡环控制钻头的轴向运动，而逆止阀是当停止供应压气时，用来妨止岩碴等杂物进入冲击器。

As for the air percussive rotary drilling, because of its advantages of high ROP, long bit life, light WOB, reduced wear of drill collar, large cuttings, low drilling cost, low formation damage and no lost circulation, it has gained acceptance.

空气冲击回转钻井在一些特定的地层和井眼条件下具有高机械钻速、长钻头寿命、小钻压、较轻钻具磨损、大岩屑、低钻井成本、较轻油层污染和避免井漏等优点，因此很早就被钻井界接受。

The invention is able to reduce shock, noise and pollution while the special drill head toughens the dirt around the pile so to enhance the dirt bearing capacity.

本发明的方法能减少冲击震动、噪音和污染，又能通过专用挤土钻头在成孔中对桩周围的土有效挤密，大幅度提高桩间土的承载力，从而提高复合地基承载力。

The process of down-the-hole hammer drilling is very complex because of its high non-linear,large deformation and damage behavior.

潜孔锤钻头冲击钻进的过程是一个高度非线性、大变形、破坏的过程。

This paper introduced the structure and operating principle of pneumatic hammer,the selection of drilling parameter,the effect of field experiments and the existent problems. pneumatic hammer ; drilling technology,deviation prevention ; wiping

它兼容了气体钻井和冲击回转钻井的优势，其机械钻速一般比牙轮钻头回转钻井高，美国早在50年代3000~3500m深井中，成功地采用了空气锤钻井技术，而国内以前运用该技术于地质勘探、水文

ATLAS COPCO INGERSOII-RAND TAMROCK TOYO FURUKAWA MISTUBISH rock tools BOART LONGYEAR rock tools We provide full ranges of Drill button bits, Drifting rods, Shank Adapters, ElementsFilters, Repair Kits for drifters, Diaphragm, Impact Piston, Hydraulic pumps assemblyparts, Rock Drills Motors, Air-oil Separators, Lubricator, Couplingetc.

公司经营产品品牌：阿特拉斯、英格索兰、汤姆洛克、东洋、古河、三菱钻具、宝长年钻具常备全规格钻头、钻杆、钎尾、滤芯、凿岩机修理包、皮碗、冲击活塞、液压主泵总成及配件、凿岩机马达、油气分离器、油雾器、连接盘等，未能尽细，欢迎垂询。

Guiding parts, mandrels, calibration rolls, knives, plate cutters, inserts for percussion drills, masonry drill tips, calibration bushes, drawing cheeks, shearing knives, inserts for golfer shoes.

导向部分、心轴、校准轧辊、刀片、倒盘、冲击钻机的衬垫、钻机钻头、校准衬套、拉模夹具、剪刀、高尔夫鞋的衬垫。

RG10 RG20 Guiding parts, mandrels, calibration rolls, knives, plate cutters, inserts for percussion drills, masonry drill tips, calibration bushes, drawing cheeks, shearing knives, inserts for golfer shoes.

导向部分、心轴、校准轧辊、刀片、倒盘、冲击钻机的衬垫、钻机钻头、校准衬套、拉模夹具、剪刀、高尔夫鞋的衬垫。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。