CN-224216284-U - Fatigue test system for rotating mirror driving mechanism

Abstract

The utility model relates to the technical field of rotating mirrors for thermonuclear fusion devices, discloses a fatigue test system of a rotating mirror driving mechanism, which is used for the fatigue test of the rotating mirror driving mechanism for thermonuclear fusion devices, the rotating mirror driving mechanism comprises a driving motor and a transmission assembly, the driving motor can drive the rotating mirror to rotate through the transmission assembly, and the fatigue testing system of the rotating mirror driving mechanism comprises a laser tracker, a target ball and an encoder. The target ball is arranged on the rotating mirror. The laser tracker is used for monitoring the position of the rotating mirror in cooperation with the target ball. The encoder is arranged on the driving motor and used for detecting the angular displacement of the rotating shaft of the driving motor. The fatigue test system for the rotating mirror driving mechanism can accurately judge the driving precision of the rotating mirror driving mechanism to the rotating mirror, and meets the requirement of the fatigue test of the rotating mirror driving mechanism.

Inventors

• TANG YUNYING
• WANG HANLIN
• ZHOU NENGTAO
• WANG XIAOJIE
• WAN YI
• ZHANG CHAO
• ZHANG XIAOGUANG
• LU HU
• Xiao Changxiang
• LI DINGZHEN

Assignees

• 中国科学院合肥物质科学研究院
• 合肥融科科研仪器有限公司
• 合肥综合性国家科学中心能源研究院(安徽省能源实验室)

Dates

Publication Date

20260508

Application Date

20250427

Claims (7)

1. 1. The fatigue test system for the rotating mirror driving mechanism for the thermonuclear fusion device is characterized by comprising a driving motor and a transmission assembly, wherein the driving motor can drive the rotating mirror to rotate through the transmission assembly, and the fatigue test system for the rotating mirror driving mechanism comprises a laser tracker, a target ball and an encoder; The target ball is arranged on the rotating mirror; the laser tracker is used for being matched with the target ball to monitor the position of the rotating mirror; The encoder is arranged on the driving motor and used for detecting the angular displacement of the rotating shaft of the driving motor; The rotary mirror driving mechanism further comprises a shell, a sealing cavity is formed in the shell, the transmission assembly is partially positioned in the sealing cavity, two ends of the transmission assembly in the length direction are exposed out of the shell, a suction connector is arranged on the shell, and the suction connector is communicated with the sealing cavity and the outer side of the shell; The rotating mirror drive mechanism fatigue test system further includes a leak detector for interfacing with the suction fitting to detect the sealed cavity.
2. 2. The rotating mirror drive fatigue test system according to claim 1, wherein a plurality of the target balls are provided, and a plurality of the target balls are provided on the rotating mirror at intervals.
3. 3. The rotating mirror driving mechanism fatigue test system according to claim 2, wherein the rotating mirror is quadrangular, and four vertex angle areas of the rotating mirror are each provided with one of the target balls.
4. 4. The rotating mirror drive fatigue test system according to claim 1, wherein a first cooling flow passage is provided in the housing; the rotary mirror comprises a mirror body and a cooling plate fixedly attached to the back surface of the mirror body, and a second cooling flow passage is arranged in the cooling plate; The rotating mirror driving mechanism further comprises a connecting pipe, a cooling liquid supply pipe and a cooling liquid return pipe, wherein the connecting pipe is connected with the shell and the cooling plate, a connecting runner is arranged in the connecting pipe and communicated with the first cooling runner and the second cooling runner, one end of each of the cooling liquid supply pipe and the cooling liquid return pipe is connected with the shell, a liquid supply runner is arranged in the cooling liquid supply pipe, and a liquid return runner is arranged in the cooling liquid return pipe; The first cooling flow channel, the second cooling flow channel, the connecting flow channel, the liquid supply flow channel and the liquid return flow channel form a cooling flow channel group.
5. 5. The rotating mirror drive fatigue test system according to claim 4, wherein the leak detector is further configured to connect with a coolant supply or return line to detect the set of cooling flow channels.
6. 6. The rotating mirror drive fatigue test system according to claim 5, further comprising a coolant supply device for connecting with the coolant supply pipe to supply coolant into the cooling flow passage group.
7. 7. The rotating mirror drive fatigue test system according to claim 6, further comprising a nitrogen gas supply device for connecting with a cooling liquid supply pipe or a cooling liquid return pipe to blow dry the cooling flow passage group.

Description

Fatigue test system for rotating mirror driving mechanism Technical Field The utility model relates to the technical field of rotating mirrors for thermonuclear fusion devices, in particular to a fatigue testing system for a driving mechanism of a rotating mirror. Background Electromagnetic waves in the millimeter wave frequency band have higher energy, millimeter wave antennas can accurately transmit millimeter wave energy to a plasma region in a thermonuclear fusion device, in the thermonuclear fusion device, millimeter wave energy is often required to be concentrated in a specific direction and region, electromagnetic waves radiated by each unit are subjected to interference superposition in space by controlling the phase and amplitude of each antenna unit in an antenna array, so that a wave beam with specific shape and directivity is formed, the wave beam can be scanned within a certain angle range, and millimeter wave energy is accurately directed to a specific position in plasma for heating, diagnosis and other operations. The turning mirror is a core device in a millimeter wave antenna for reflecting millimeter waves to a specified position with a certain angular range and accuracy. A drive mechanism is therefore required to drive the rotating mirror to complete the mirror rotation. The thermonuclear fusion device is extremely high in internal temperature, one end of a driving mechanism for driving the rotating mirror to rotate extends into a fusion cavity of the fusion device so as to drive the rotating mirror, and the other end of the driving mechanism extends out of the fusion cavity and is connected with a driving motor. Because the fusion cavity is in a vacuum environment, the shell of the driving mechanism is in sealing connection with the thermonuclear fusion device, and the driving structure is internally provided with a sealing cavity, so that the situation that the fusion cavity cannot keep the vacuum environment due to the fact that the fusion cavity is communicated with the outside through the driving mechanism is avoided. In the development of the conventional driving mechanism, as the environment is not provided with a fusion reactor, the maintenance is more convenient, the requirement on parameters of fatigue life times and angle precision is far less strict than that of the driving mechanism of the rotating mirror for the thermonuclear fusion device, and the conventional driving mechanism also does not need to consider the problem of vacuum sealing, so that the conventional fatigue test system for the driving mechanism cannot meet the requirement of the fatigue test of the driving mechanism of the rotating mirror for the thermonuclear fusion device. Therefore, a fatigue testing system for a rotating mirror driving mechanism is needed to solve the above problems. Disclosure of utility model The utility model aims to provide a fatigue test system for a rotating mirror driving mechanism, which can accurately judge the driving precision of the rotating mirror driving mechanism to the rotating mirror and meet the requirement of the fatigue test of the rotating mirror driving mechanism. To achieve the purpose, the utility model adopts the following technical scheme: The fatigue test system of the rotating mirror driving mechanism is used for the fatigue test of the rotating mirror driving mechanism for the thermonuclear fusion device, the rotating mirror driving mechanism comprises a driving motor and a transmission assembly, the driving motor can drive the rotating mirror to rotate through the transmission assembly, and the fatigue test system of the rotating mirror driving mechanism comprises a laser tracker, a target ball and an encoder; The target ball is arranged on the rotating mirror; the laser tracker is used for being matched with the target ball to monitor the position of the rotating mirror; The encoder is arranged on the driving motor and used for detecting the angular displacement of the rotating shaft of the driving motor. As an improvement of the technical scheme, a plurality of target balls are arranged, and the plurality of target balls are arranged on the rotating mirror at intervals. As an improvement of the technical scheme, the rotary mirror is quadrilateral, and the target balls are arranged in four vertex angle areas of the rotary mirror. As an improvement of the technical scheme, the rotating mirror driving mechanism further comprises a shell, a sealing cavity is formed in the shell, the transmission assembly is partially positioned in the sealing cavity, two ends of the transmission assembly in the length direction are exposed out of the shell, and a suction connector is arranged on the shell and is communicated with the sealing cavity and the outer side of the shell; The rotating mirror drive mechanism fatigue test system further includes a leak detector for interfacing with the suction fitting to detect the sealed cavity. As an improvement of the technical scheme,