50results about How to "Play a righting role" patented technology

The invention discloses an integrated wellhead continuous dosing device which comprises a power end and an overflowing end in mutual connection with each other, wherein the power end comprises a cylinder and a plunger; the cylinder is vertically arranged; the plunger is inserted into a chamber of the cylinder; an extending end of the plunger is connected with a power source; a compression spring for resetting the plunger is arranged between the chamber and the plunger; the overflowing end comprises a channel which is respectively in annular communication with the chamber, a drug kit and a wellhead. Compared with the prior art, the integrated wellhead continuous dosing device has the advantages of simple structure, stability and reliability in work, high adaptive capacity to environment, accurate dosage and convenience in maintenance and repairing.

The invention relates to the field of motors, in particular to an all-metal dynamic seal concentric righting type underground volume motor comprising an outer pipe, a stator fixedly connected in the outer pipe, a rotor rotationally connected in the stator and a flow distribution shaft installed in the rotor in a suspended mode, an annular cavity is formed between the outer pipe and the stator, and an inner cavity of the stator is oval. The upper end of the flow distribution shaft is connected with drilling fluid, and flow distribution holes are formed in the flow distribution shaft. A containing groove is formed in the side wall of the rotor, rotor copper bars are placed in the containing groove, a circulating opening is formed in the portion, in the direction facing each rotor copper bar, of the inner wall of the rotor, when the rotor rotates, the multiple circulating openings communicate with the flow distribution holes in a staggered mode, and a containing space allowing the drilling fluid to flow in is formed among the multiple rotor copper bars. Each circulating opening forms a notch communicating with the containing space on one side of the corresponding rotor copper bar. The stator is provided with pressure relief openings communicating with the annular containing cavity and the containing space, and the flow distribution holes and the pressure relief openings are arranged in a staggered mode in the circumferential direction. The all-metal dynamic seal concentric righting type underground volume motor can meet the requirement for high-temperature drilling in deep wells and ultra-deep wells.

The invention relates to an unloading machine, comprising a main frame, two ends of the main frame are respectively provided with a driving end and a driven end, the driving end is provided with a driving sprocket, the driven end is provided with a driven sprocket, and the driven sprocket is provided with the driven sprocket. There is a discharge chain wrapped around the driving sprocket, and a plurality of vertically extending scraper components are fixed at uniform intervals along the circumference of the discharge chain; mechanism. The travel drive sprocket is symmetrically installed on the travel drive shaft, and the travel redirection sprockets are respectively arranged under the front and rear sides of each travel drive sprocket. The groups of walking rollers are respectively supported on the walking tracks on both sides of the ground rail groove, and the ground rail grooves are respectively provided with traveling chains, and each traveling chain bypasses the traveling redirecting sprocket and the traveling driving sprocket in turn. The equipment investment and operation cost of the unloading machine are low, and it can realize two-way continuous discharge, and has low power consumption and high efficiency.

The invention provides a drilling tool centralizer which comprises a mandrel, a bearing, a bearing bush, a supporting sleeve and a lower connector. The top end of the mandrel is connected with an upper drilling tool, the bottom end of the mandrel is connected with the top end of the lower connector, the bottom end of the lower connector is connected with a lower drilling tool, the bearing and thebearing bush are arranged on the periphery of the mandrel in a sleeving mode, the supporting sleeve is arranged on the periphery of the bearing bush in a sleeving mode, and a positioning groove used for fixing the bearing bush is formed in the supporting sleeve. Friction resistance inside the drilling tool centralizer can be reduced, quick-wear parts are easy to replace, and therefore the drillingcost can be reduced.