Cleaning device for PDC drill bits

Abstract

The invention relates to a cleaning device for PDC drill bits. The cleaning device comprises a base, a rotary shaft and a disc. The base is provided with brake trundles. One end of the rotary shaft isconnected with the middle of the upper surface of the base, and the other end of the rotary shaft is fixedly connected with the middle of the disc. A first cleaning box, a second cleaning box and a third cleaning box are arranged on the upper surface of the disc, wherein openings are formed in the upper surface of the first cleaning box, the upper surface of the second cleaning box and the uppersurface of the third cleaning box. A drainage hole is formed in the bottom face of each cleaning box, and a filter screen is arranged at each drainage hole and comprises a rough filter layer, a primary-efficiency layer, an intermediate-efficiency layer, a high-efficiency layer and a purification layer which are sequentially arranged from the water inlet side to the water outlet side. A water inlethole is further formed in the side face of each cleaning box. Each drainage hole is connected with a drainage pipe. The drainage pipes are connected with a water collection box. Each water inlet holeis connected with a water inlet pipe. The water inlet pipes are connected with a water supply box. A water inlet pump is further connected to the water inlet pipes in series. The cleaning device hasthe beneficial effects that water can be effectively supplied in the cleaning process, cleaning continuity can be guaranteed, then the cleaning efficiency is improved, and cyclic utilization of waterresources can be achieved.

Description

technical field [0001] The invention relates to the research field of petroleum machinery and equipment, in particular to a drill bit cleaning device. Background technique [0002] The abbreviation of diamond compact (PDC) drill bit is a drilling tool commonly used in the oil drilling industry. [0003] The performance of PDC products continues to improve. Over the past few years, the quality and type of PDC cutting teeth have changed dramatically. If you compare the teeth of the 1980s with today's teeth, the difference is considerable. Due to the mixing Due to the changes in technology and manufacturing process, the quality and performance of today's cutting teeth are much better, which greatly improves the erosion resistance and impact resistance of the drill bit. [0004] Engineers also optimized the interface between the tungsten carbide substrate and the synthetic diamond to increase the toughness of the cutting teeth. Innovations in layered diamond processing have al...

AI Technical Summary

Problems solved by technology

[0007] In the prior art, because the drill bit has been drilling underground for a long time, there will be a large amount of impurities on the surface after use. If it is not removed, it is easy to accelerate the wear of the drill bit and reduce the service life of the drill bit. Usually, the staff removes the drill bit. Cleaning and then reinstalling is cumbersome and less efficient

[0008] After retrieval, the patent CN204620562U discloses a cleaning device for PDC drill bits, which includes a base, a rotating shaft, and a disk. The base is provided with casters with brakes, and the bottom of the disk is provided with a circular groove. One end of the rotating shaft is connected to the middle of the upper surface of the base, the other end of the rotating shaft is located in the circular groove, the disc can rotate around the rotating shaft, and the upper surface of the disc is provided with: A cleaning box, a second cleaning box, and a third cleaning box, the bottom surfaces of the first cleaning box, the second cleaning box, and the third cleaning box are all provided with drain holes, and the drain holes are connected with drain pipes, and the drain holes The pipe is connected to the water collection tank, the first cleaning tank is equipped with a water gun and an electric cleaning brush, the second cleaning tank is equipped with an ultrasonic cleaning machine, and the third cleaning tank is filled with cleaning fluid, which realizes the use for PDC drill bits The cleaning device design is reasonable, the cleaning effect is good, and the cleaning efficiency is high; however, during the cleaning process, the water in the cleaning tanks will continue to drain outward through the drain holes and then through the drain pipes, so the water in the cleaning tanks It will continue to decrease, and when the amount of water decreases to a certain extent, it will affect the cleaning effect; and in order to ensure the cleaning effect, it is necessary to stop the car and add water to each cleaning tank, but this method cannot meet the continuous cleaning, which will affect the cleaning efficiency.

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