# US 2017/0284201 A1 · Malfunction diagnosis apparatus for gear motor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0284201 A1 - Document ID: US20170284201A1 - Status: Published application - Kind: A1 - Application number: 15/460,073 - Filed: 2017-03-15 - Published: 2017-10-05 - Earliest claimed: 2016-03-30 - Assignees: Sumitomo Heavy Industries, Ltd. - Applicants: Sumitomo Heavy Industries, Ltd. - Inventors: Kota Suzuki; Mikio Komatsu; Takashi Haga; Akira Yamamoto - Web page: https://patentgrep.com/patent/US20170284201A1 ## CPC - F01C 20/28: Safety arrangements; Monitoring - F01C 1/14: with toothed rotary pistons - F01C 13/00: Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby - G01M 13/021: Gearings - G01M 13/028: Acoustic or vibration analysis - F04C 2240/81: Sensor, e.g. electronic sensor for control or monitoring - F04C 2270/12: Vibration - F04C 2270/80: Diagnostics - F01C: ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (internal-combustion aspects F02B53/00, F02B55/00) - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS ## Abstract A malfunction diagnosis apparatus for a gear motor includes a vibration sensor portion, and a diagnosis unit that determines whether or not an abnormality occurs in the gear motor based on vibration detected by the vibration sensor portion. The vibration sensor portion and the diagnosis unit are installed in the gear motor. The diagnosis unit has a control power source which supplies power to the vibration sensor portion. The vibration sensor portion outputs detected vibration data to the diagnosis unit in a digital format. ## Claims ### Claim 1 A malfunction diagnosis apparatus for a gear motor, comprising: a vibration sensor portion; and a diagnosis unit that determines whether or not an abnormality occurs in the gear motor, based on vibration information detected by the vibration sensor portion, wherein the vibration sensor portion and the diagnosis unit are installed in the gear motor, wherein the diagnosis unit has a power supply portion which supplies power to the vibration sensor portion, and wherein the vibration sensor portion outputs detected vibration information to the diagnosis unit in a digital format. ### Claim 2 (depends on 1) The malfunction diagnosis apparatus for a gear motor, according to claim 1, further comprising: a power generation mechanism that is mounted in the gear motor, wherein the diagnosis unit supplies power generated by the power generation mechanism to the vibration sensor portion and performs determination by using the power. ### Claim 3 (depends on 2) The malfunction diagnosis apparatus for a gear motor, according to claim 2, wherein the power supply portion is power storage means which stores power generated by the power generation mechanism, and wherein the diagnosis unit supplies power to the vibration sensor portion and performs determination when the power storage amount of the power storage means reaches a predetermined value. ### Claim 4 (depends on 2) The malfunction diagnosis apparatus for a gear motor, according to claim 2, wherein the power supply portion is power storage means which stores power generated by the power generation mechanism, and wherein the diagnosis unit supplies power to the vibration sensor portion and performs determination by using power stored in the power storage means when a request is received from an external apparatus. ### Claim 5 (depends on 2) The malfunction diagnosis apparatus for a gear motor, according to claim 2, wherein the power supply portion is power storage means which stores power generated by the power generation mechanism, and wherein the diagnosis unit supplies power to the vibration sensor portion and performs determination by using power stored in the power storage means when a power source of the diagnosis unit is turned ON or after a lapse of a predetermined time from when the power source of the diagnosis unit is turned ON. ### Claim 6 (depends on 2) The malfunction diagnosis apparatus for a gear motor, according to claim 2, wherein the power supply portion is power storage means which stores power generated by the power generation mechanism, and wherein the diagnosis unit supplies power to the vibration sensor portion and performs determination when the time obtained from a timepiece included in the diagnosis unit becomes a set time. ### Claim 7 (depends on 3) The malfunction diagnosis apparatus for a gear motor, according to claim 3, wherein in a case where it is determined that an abnormality occurs in the gear motor, the diagnosis unit waits until power required in a transmission to the external apparatus is stored in the power storage means and transmits a determination result to the external apparatus. ### Claim 8 (depends on 3) The malfunction diagnosis apparatus for a gear motor, according to claim 3, wherein in a case where power required in supplying power to the vibration sensor portion and performing determination is not stored in the power storage means, the diagnosis unit outputs a state of insufficient power-storage without supplying power to the vibration sensor portion and performing determination.