Tri-cone bit and preparation method thereof
A technology of tricones and drill bits, which is applied in drill bits, drilling equipment, manufacturing tools, etc., can solve the problems of complex grease compensation process and other problems, and achieve the effect of reducing the number, reducing the number and reducing the complexity.
Active Publication Date: 2020-04-28
四川宝石机械石油钻头有限责任公司 +1
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Aiming at the above-mentioned deficiencies in the prior art, the tri-cone bit and its preparation method provided by the present invention solve the problem of complex grease inspection and grease compensation procedures
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
[0028] Such as figure 1 As shown, the tri-cone bit includes a connecting head 1 and a palm 2 welded together with the connecting head 1. An oil storage hole is opened on the connecting head 1, and the threads on the outer surface of the connecting head 1 cover the opening of the oil storage hole. ; The tooth palm 2 is equipped with three cones 3 through the bearing 23, and the angles between adjacent cones 3 are the same. ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a tricone bit and a preparation method thereof. The tricone bit comprises a connecting head and a tooth palm welded with the connecting head to a whole, the connecting head isprovided with an oil storage hole, and threads on the outer surface of the connecting head cover the lower part of an oil storage hole opening; the tooth palm is provided with three tooth rollers through a bearing, and the included angles between every adjacent tooth rollers are the same; the connecting head is provided with an oil storage compensation system which balances internal and external pressure of a bearing cavity, and supplies grease of the bearing cavity, and an injection system for washing the tooth rollers and assisting rock breaking; and the oil storage compensation system includes an oil storage device installed in the oil storage hole, a bearing sealing ring and a flow guide pipe net for guiding the grease in the oil storage device into the bearing cavity, and arranged onthe tooth palm and the connecting head. According to the tricone bit and the preparation method thereof, by arranging the injection system and the oil storage compensation system, the cost, productionefficiency, working efficiency and the service life of the bit are improved well.
Description
technical field [0001] The invention relates to a drill bit for petroleum drilling, in particular to a three-cone drill bit and a preparation method thereof. Background technique [0002] When the cone in the drill bit rotates to break the rock, in order to cope with the high pressure formed by the drilling fluid at the bottom of the well, an oil storage compensation device is generally designed on the back of the tooth palm. Its task is to ensure that the sealing ring and the bearing have good Working conditions, thereby improving the service life of seal rings and bearings. The oil storage compensating device, the bearing sealing ring and the oil channel constitute the oil storage sealing compensation system, so as to ensure that the bearing works in a good lubricating condition and sealing state, and improve the service life of the drill bit bearing. [0003] Existing drill bits are generally equipped with multiple cones to improve drilling efficiency. In order to ensure...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/24E21B10/18E21B10/22E21B10/16B23P15/28B22C9/22B22C9/08
CPCB22C9/082B22C9/22B23P15/28E21B10/16E21B10/18E21B10/22E21B10/24
Inventor 罗元清张晓华易燕李晋秦梁洁黄敏王霞张一鹏
Owner 四川宝石机械石油钻头有限责任公司