# US 12,180,808 B2 · All-metal intelligent control motor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,808 B2 - Document ID: US12180808B2 - Status: Granted - Kind: B2 - Application number: 18/337,741 - Filed: 2023-06-20 - Published: 2024-10-10 - Granted: 2024-12-31 - Earliest claimed: 2023-04-10 - Assignees: Southwest Petroleum University; Nantong Xieming Technology Co., Ltd.; Sichuan Xieming Technology Co., Ltd. - Applicants: Southwest Petroleum University; Nantong Xieming Technology Co., Ltd.; Sichuan Xieming Technology Co., Ltd. - Inventors: Jialin Tian; Junyang Song; Lei Cha; Heng Li; Yanniu Ren; Chunyu Xing; Lin Yang; Long Ran - Web page: https://patentgrep.com/patent/US12180808B2 ## CPC - E21B 4/04: Electric drives (E21B4/12 takes precedence) - E21B 4/003: {Bearing, sealing, lubricating details (for roller bits E21B10/22)} - E21B 4/006: {Mechanical motion converting means, e.g. reduction gearings (E21B4/10 takes precedence)} - E21B 21/08: Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure (valve arrangements therefor E21B21/10) - E21B 44/005: {Below-ground automatic control systems} - E21B 47/00: Survey of boreholes or wells (monitoring pressure or flow of drilling fluid E21B21/08) - Y02P 70/10: Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS ## Abstract The disclosure concerns oil drilling technology, and specifically an all-metal intelligent control motor (AMIM). The AMIM comprises an electric control module, a power module and a transmission module. The electric control module determines the axial position of the connecting rod valve through an electromagnet and controls the connection between the connecting rod valve and the piston through an electric motor. The hydraulic pressure of drilling fluid and the spring reaction force in the power module push a double worm to move axially and circumferentially under the action of internal teeth on the inner surface of shell. A one-way bearing ensures that the power module only transmits unidirectional motion. The transmission module axially limits the power module through TC bearings and transmits circumferential motion, drilling pressure and torque to the lower drilling tool. The AMIM is suitable for all kinds of deep well exploration, with a stronger drilling force, a lower cost and a higher applicability. ## Claims ### Claim 1 An all-metal intelligent control motor (AMIM), comprising: an electric control module which includes an upper connecting sleeve, a connecting rod valve cover, a connecting rod valve, a signal output module, a lower connecting sleeve, a piston, and a signal input module; a power module which includes an upper thrust ball bearing, a dextrorotation worm, a dextrorotation transmission shaft, a lower thrust ball bearing, a levorotation worm, an upper string bearing, a shell, a cover, an upper one-way bearing, a lower one-way bearing, a connecting shaft, a one-way shaft, and a spring; and a transmission module which includes a transmission shaft shell, an upper TC bearing comprising an upper tungsten carbide (TC) bearing moving ring, an upper moving ring alloy, an upper static ring alloy, and an upper TC bearing static ring, a transmission shaft, a lower string bearing, a pressure sleeve, a half ring, a spacer sleeve, and a lower TC bearing comprising a lower string moving ring, a lower moving ring alloy, a lower static ring alloy, and a lower TC bearing static ring; wherein the upper connecting sleeve, the lower connecting sleeve, the shell, and the transmission shaft shell are connected in succession by taper threads; the connecting rod valve and the piston are axially limited; the upper thrust ball bearing is between the piston and the dextrorotation worm, and the dextrorotation worm and the dextrorotation transmission shaft are connected; the dextrorotation worm and the levorotation worm are configured with the lower thrust ball bearing; the levorotation worm and the dextrorotation transmission shaft are configured with the upper string bearing; the levorotation worm, the dextrorotation transmission shaft and the connection shaft are respectively welded with the upper one-way bearing and the lower one-way bearing; the connecting shaft separates the upper one-way bearing and the lower one-way bearing; the connecting shaft is splined to the one-way shaft, and the spring is in an inner cavity of the connecting shaft and the one-way shaft; the transmission shaft is threaded to the one-way shaft; and the upper TC bearing and the lower TC bearing are in a center of the lower string bearing, the pressure sleeve, the half-ring and the spacer sleeve. ### Claim 2 (depends on 1) The AMIM according to claim 1, wherein each of the electric control module, the power module and the transmission module is coaxial. ### Claim 3 (depends on 1) The AMIM according to claim 1, wherein the signal output module is in the connecting rod valve and the connecting rod valve cover. ### Claim 4 (depends on 1) The AMIM according to claim 1, wherein the signal output module includes a first control board, a Hall sensor, a first battery and a signal transmitter. ### Claim 5 (depends on 1) The AMIM according to claim 1, wherein the signal input module is in the piston. ### Claim 6 (depends on 1) The AMIM according to claim 1, wherein the signal input module includes a second control board, a signal receiver, a second battery, and a speed direction sensor. ### Claim 7 (depends on 1) The AMIM according to claim 1, further comprising a connecting rod valve gate that cooperates with the piston to control a pressure of a drilling fluid. ### Claim 8 (depends on 1) The AMIM according to claim 1, wherein the piston includes an outer ring and an inner ring; the outer ring is solid, and the inner ring is hollow. ### Claim 9 (depends on 1) The AMIM according to claim 1, wherein the signal input module transmits electrical signals to an electromagnet through an internal channel of the piston. ### Claim 10 (depends on 1) The AMIM according to claim 1, wherein the signal output module senses a magnetic signal of the upper connecting sleeve and the lower connecting sleeve and transmits the magnetic signal to the signal input module. ### Claim 11 (depends on 4) The AMIM according to claim 4, wherein the signal input module receives wireless communication signals from the signal output module, and controls switching of the electromagnet according to a position of the connecting rod valve. ### Claim 12 (depends on 1) The AMIM according to claim 1, wherein the piston and the shell are sealed with a seal. ### Claim 13 (depends on 1) The AMIM according to claim 1, wherein the shell has a treated inner surface that includes a dextrorotation worm-shaped internal tooth or gear and a levorotation worm-shaped internal tooth or gear. ### Claim 14 (depends on 1) The AMIM according to claim 1, wherein the connecting shaft is coaxial with the spring. ### Claim 15 (depends on 14) The AMIM according to claim 14, wherein the spring is preloaded. ### Claim 16 (depends on 1) The AMIM according to claim 1, wherein the connecting shaft has an outer diameter that is smaller than an inner diameter of the transmission shaft. ### Claim 17 (depends on 1) The AMIM according to claim 1, wherein the transmission shaft shell in the transmission module is axially limited to the power module with the upper TC bearing and the lower TC bearing. ### Claim 18 (depends on 1) The AMIM according to claim 1, wherein the upper and lower TC bearings are axially limited to the transmission shaft shell.