精品久久久久久久久午夜福利,麻豆精品国产自产在线,一级成人a毛片免费播放,97SE亚洲国产综合自在线不卡,亚洲天堂区,欧美午夜刺激影院,妇女自拍偷自拍亚洲精品,久久精品国产亚洲av嫖农村妇女
      Language EN
      News Center
      NEWS
      Classification and working principle of water well drilling rig
      Date:2021-05-11 Page View:12648

      What is a water well drilling rig? In short, a water well drilling rig is a kind of mechanical equipment used to drill water wells and complete downhole pipelines, well washing, etc., including power equipment and drill bits, drill pipes, core tubes, drill racks, etc. The following briefly introduces the classification and working principle of water well drilling rigs, and the correct use of water well drilling rigs.

          The mechanism of water well drilling rig:

          1. Hydraulic oil pump: double-type high-capacity pump, specially provides power to the power head. The small displacement pump powers the four hydraulic cylinders, the mast hydraulic cylinder and the boost/lift hydraulic cylinder.

          2. Four outriggers: the water well drilling rig consists of a hydraulic cylinder and a fixed frame. The height of the body can be adjusted at the work site to support and stabilize the body.

          3. Mast: a structural frame made of giant steel pipes, channel steels and angle steels. The internal grooves of the channel steel on both sides are used as the power head, which can be moved up and down to ensure the verticality of the hole. The fluctuation of the mast is done by hydraulic cylinders.

          4. Power head: The mechanism with gear reducer has a large-diameter mandrel in the middle of the low-speed shaft. The upper end of the mandrel can be connected with the hose interface of the concrete pouring equipment to inject concrete. The lower end of the mandrel is connected to the drill rod and the drill bit through a blue plate. The high-speed shaft is driven by a high-torque hydraulic motor.

          Water well drilling platforms can be divided into three types: rotary water well drilling rigs, percussion water well drilling rigs and composite water well drilling rigs. Rotary water well drilling rigs can be divided into: large and small cone drilling rigs, circulating rotary drilling rigs, hydraulic head drilling rigs and downhole impact rotary drilling rigs.

          Rotary water well drilling rigs mainly depend on the rotational movement of drilling tools to break the rock into holes. Generally, there are large and small cone drills, positive and negative circulation rotary drilling rigs, hydraulic head drilling rigs and downhole vibrating rotary drilling rigs. A simple rotary drill has only one drilling unit. A well-structured rotary drilling rig is divided into two parts: drilling equipment and circulating well cleaning equipment.


      主站蜘蛛池模板: 偷拍视频网站一区二区| 香蕉久久夜色精品国产| 罗甸县| 色婷婷亚洲十月十月色天| 久久免费少妇高潮免费| 国产AV高清精品久久| 亚洲午夜av福利久久久一区| 札达县| 亚洲aⅴ久久久噜噜噜噜| 亚洲色图视频在线观看网站| 朝阳区| 99re国产电影精品| 欧美亚洲尤物久久综合精品| 乱人伦人妻中文字幕不卡| 亚洲一二三四五区中文字幕| 日韩午夜在线视频观看| 亚洲区福利视频免费看| 最新国产美女一区二区三区| 亚洲国产精品综合福利专区| 樟树市| 欧美一级视频在线| 91蜜桃臀免费在线观看| 国产精品玖玖资源站大全| 日韩精品极品在线观看视频| 亚洲欧美国产成人综合不卡| 亚洲中文字幕精品一区二区| 不打码在线观看一区二区三区视频 | 成人白浆一区二区三区在线观看 | 亚洲不卡av不卡一区二区| 久久成人黄色免费网站| 国产一级人片内射视频播放| 97色人阁俺也去人人人人人| 噜噜噜色97| 国产好片日本一区二区三区四区| 手机AV片在线| 成人影院激情av在线| 成人综合亚洲欧美一区h| 国产99精品精品久久免费| 亚洲图片第二页| 日本精品一区二区在线看| 人片在线观看无码|