Well drilling device
A drilling and casing technology, which is applied in the field of drilling equipment, can solve the problems of short life of the transmission shaft and fast wear of the transmission shaft, and achieve the effects of prolonging life, avoiding friction, and ensuring stable rotation
Pending Publication Date: 2022-08-05
中煤矿业集团有限公司
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Problems solved by technology
[0004] The invention provides a drilling device, which is used to solve or improve the problem that the transmission shaft of the existing drilling equipment wears quickly during the drilling process, resulting in a short service life of the transmission shaft.
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[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] In the description of the embodiments of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, only for the con...
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The invention belongs to the technical field of drilling equipment, and provides a well drilling device which comprises a sleeve, a flexible transmission shaft and an elastic assembly. The sleeve is cylindrical; the flexible transmission shaft is arranged in the sleeve, one end of the flexible transmission shaft is connected with the output end of power equipment, and the other end of the flexible transmission shaft extends out of the sleeve and is connected with the drill bit; the middle of the flexible transmission shaft is sleeved with a bearing. The elastic component is connected with the sleeve; the multiple elastic assemblies are evenly distributed in the circumferential direction of the sleeve. The elastic component is detachably connected with the outer ring of the bearing; under the condition that the axis of the flexible transmission shaft coincides with the axis of the sleeve, the multiple elastic assemblies are connected with the outer ring of the bearing. Under the condition that the axis of the flexible transmission shaft deviates relative to the axis of the sleeve, the elastic assembly located on the side close to the deviation is connected with the outer ring of the bearing, and the elastic assembly located on the side away from the deviation is separated from the outer ring of the bearing; the abrasion of the flexible transmission shaft in the rotating process is avoided.
Description
technical field [0001] The invention relates to the technical field of drilling equipment, in particular to a drilling device. Background technique [0002] When exploiting underground oil and gas resources, it is necessary to drive the drill bit through the drive shaft for drilling operations. Due to the deep drilling depth, the drive shaft usually adopts a flexible shaft to adapt to long-distance power transmission. [0003] During the working process of the existing drilling equipment, if the force of the drill bit is not uniform, the flexible shaft will be adaptively bent, and accordingly, the axis of the flexible shaft will be offset, resulting in the flexible shaft coming into contact with the drilling wall and appearing. Sliding friction, resulting in abnormal wear of the flexible shaft, resulting in a shorter life of the winding shaft. SUMMARY OF THE INVENTION [0004] The present invention provides a drilling device, which is used to solve or improve the problem ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): E21B7/28E21B10/43E21B12/00E21B17/00E21B17/10
CPCE21B7/28E21B10/43E21B17/1078E21B17/00E21B12/00
Inventor 陈东冯帆左明星丁高明宋全邱志
Owner 中煤矿业集团有限公司