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公开(公告)号：US12103092B2
公开(公告)日：2024-10-01
申请号：US17394721
申请日：2021-08-05
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Yuren Lu , Peng Yin , Peilu Li , Dezhi Li , Shuangyi Li , Wenyuan Song , Zhaowei Miao
Abstract: A device for controlling deformation of a large-scale crankshaft comprising a crankshaft holder that is arranged for fixing the crankshaft so that the crankshaft is aligned with an axis; a regulatory bracket that is arranged on the crankshaft holder at a position corresponding to the crankshaft; and a high-energy acoustic beam transducer that is arranged on the bracket and is provided with an end part coupled with the crankshaft. The crankshaft is fixed through the crankshaft holder, high-energy ultrasonic waves are injected into the crankshaft by the transducer, mass points in the crankshaft are driven to vibrate along the acoustic beam direction, and machining residual stress of the crankshaft is removed through the high-energy acoustic beam to realize the regulation and control of the residual stress in the material in the specific direction, so that machining precision of the crankshaft is ensured and machining deformation of the crankshaft is reduced.
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2.发明授权公开(公告)号：US11835407B2
公开(公告)日：2023-12-05
申请号：US17377162
申请日：2021-07-15
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Shuangyi Li , Yuren Lu , Peng Yin , Dezhi Li , Wenyuan Song
CPC classification number: G01L1/255 , G01N29/14 , G01N29/24 , G01N2291/101
Abstract: A device and a method for ultrasonic detecting a mechanical member based on magnetic fluid coupling. The device comprises a magnetic field generating apparatus, magnetic fluid and an ultrasonic probe. The magnetic field generating apparatus has a cylindrical structure, into which the magnetic fluid is injected, where an upper portion of the apparatus is provided with the ultrasonic probe a front end that vertically extends into a liquid level of the magnetic fluid, and a bottom portion of the apparatus covers a detected position of a member under detection. The magnetic fluid at least contains magnetic suspension particles and oil-based or water-based liquid. With the device and the method, the ultrasonic probe is coupled with the member under detection to realize ultrasonic detecting of the service stress of the member under detection.
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公开(公告)号：US11604172B2
公开(公告)日：2023-03-14
申请号：US17329585
申请日：2021-05-25
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Shuangyi Li , Yuren Lu , Peng Yin , Dezhi Li , Wenyuan Song
Abstract: An ultrasonic monitoring probe for internal service stress of a marine structural component. The probe includes a detection wedge provided with two symmetrically arranged inclined surfaces at its top, two connecting channels vertical to the two inclined surfaces and penetrating through the detection wedge and provided with threaded holes close to the inclined surfaces and water storage cavities far away from the inclined surfaces, two ultrasonic transducers mounted in the threaded holes of the two connecting channels and configured for generating and receiving ultrasonic waves; two bottom rings located at a bottom of the detection wedge and arranged relative to the water storage cavities and configured for attachment to a surface of a detected component, a magnet disposed in a magnet placement hole arranged at a central position between the two connecting passages, and a monitoring device electrically connected with the two ultrasonic transducers.
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公开(公告)号：US20220080510A1
公开(公告)日：2022-03-17
申请号：US17394721
申请日：2021-08-05
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Yuren Lu , Peng Yin , Peilu Li , Dezhi Li , Shuangyi Li , Wenyuan Song , Zhaowei Miao
IPC: B23B5/18
Abstract: A device for controlling deformation of a large-scale crankshaft comprising a crankshaft holder that is arranged for fixing the crankshaft so that the crankshaft is aligned with an axis; a regulatory bracket that is arranged on the crankshaft holder at a position corresponding to the crankshaft; and a high-energy acoustic beam transducer that is arranged on the bracket and is provided with an end part coupled with the crankshaft. The crankshaft is fixed through the crankshaft holder, high-energy ultrasonic waves are injected into the crankshaft by the transducer, mass points in the crankshaft are driven to vibrate along the acoustic beam direction, and machining residual stress of the crankshaft is removed through the high-energy acoustic beam to realize the regulation and control of the residual stress in the material in the specific direction, so that machining precision of the crankshaft is ensured and machining deformation of the crankshaft is reduced.
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公开(公告)号：US20220032341A1
公开(公告)日：2022-02-03
申请号：US17364071
申请日：2021-06-30
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Peng Yin , Yuren Lu , Shuangyi Li , Wenyuan Song
Abstract: A control device for reducing and homogenizing welding residual stress by acoustic waves, comprising: a fixing tool having two rows of through holes; a plurality of ultrasonic transducers each having a body and a conical horn transmitting portion at a lower end of the body, wherein lower ends of the horn transmitting portions are fixedly connected with flanges, the horn transmitting portions of the ultrasonic transducers extend into respective through holes of the fixing tool to be in contact with welded parts below the fixing tool, the flanges are fixed to the fixing tool by bolts, and the two rows of through holes are arranged both sides of a welding seam of the welded parts; and a driving device for driving the ultrasonic transducers to operate. A corresponding control method is also provided. The control device can be used to control residual stress at the welding seam of steels.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20220026293A1
公开(公告)日：2022-01-27
申请号：US17377200
申请日：2021-07-15
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Shuangyi Li , Yuren Lu , Peng Yin , Dezhi Li , Wenyuan Song
Abstract: A device and a method for ultrasonic detecting a rotating member based on magnetic fluid coupling, wherein the device comprises an ultrasonic probe, magnetic field protection rings, magnetic fluid and a magnetic fluid protection cover. The ultrasonic probe is arranged above the rotating member that is horizontally placed. Front ends of a transmitting ultrasonic transducer and a receiving ultrasonic transducer of the ultrasonic probe are provided with the magnetic field protection rings for generating magnetic fields in the magnetic field protection rings. The protective cover is sleeved on a circumferential outer side of the rotating member where a detected position is located, and the front ends of the ultrasonic probe are arranged to penetrate through the magnetic fluid protective cover. A cavity formed between the magnetic fluid protective cover and the rotating member is filled with the magnetic fluid and the magnetic fluid is a liquid mixture solution.
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公开(公告)号：US20220025500A1
公开(公告)日：2022-01-27
申请号：US17380090
申请日：2021-07-20
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Wenyuan Song , Peilu Li , Peng Yin , Yuren Lu , Shuangyi Li
Abstract: A device for reducing and homogenizing residual stress of a metal frame including a substrate, a frame fixing device and ultrasonic vibrators. A groove with an upward opening is provided in the middle of the substrate, and a shape enclosed by vertical side walls of the groove matches a shape of an outer frame of a metal frame to be processed. A plurality of through holes that are horizontally diverged are arranged around the side walls of the groove, and the through holes are vertically intersected with the groove. The ultrasonic vibrators are provided on the substrate and front ends of the ultrasonic vibrators extend into respective through holes to abut against the metal frame in the groove. The frame fixing device is also arranged in the groove where the metal frame is located, after the metal frame to be processed is placed in the groove.
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8.发明申请公开(公告)号：US20200370143A1
公开(公告)日：2020-11-26
申请号：US16878892
申请日：2020-05-20
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Dezhi Li , Yuren Lu , Peng Yin
IPC: C21D10/00
Abstract: The present disclosure provides a device and a method for reducing and homogenizing residual stress during machining in which a workpiece is fixed, such as milling, boring, drilling and planning, with which high-energy acoustic waves are emitted to the workpiece via a tight contact between a plurality of high-energy wave exciters on a bench and a workpiece coated with a coupling medium, and residual stress inside the machined workpiece is reduced and homogenized through elastic wave energy generated in the workpiece by the high-energy acoustic waves. In this way, the purpose of reducing and homogenizing the residual stress while machining is achieved, realizing a stress-free machining, and the deformation of the workpiece during and after machining is minimized.
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公开(公告)号：US11814714B2
公开(公告)日：2023-11-14
申请号：US17380090
申请日：2021-07-20
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Wenyuan Song , Peilu Li , Peng Yin , Yuren Lu , Shuangyi Li
Abstract: A device for reducing and homogenizing residual stress of a metal frame including a substrate, a frame fixing device and ultrasonic vibrators. A groove with an upward opening is provided in the middle of the substrate, and a shape enclosed by vertical side walls of the groove matches a shape of an outer frame of a metal frame to be processed. A plurality of through holes that are horizontally diverged are arranged around the side walls of the groove, and the through holes are vertically intersected with the groove. The ultrasonic vibrators are provided on the substrate and front ends of the ultrasonic vibrators extend into respective through holes to abut against the metal frame in the groove. The frame fixing device is also arranged in the groove where the metal frame is located, after the metal frame to be processed is placed in the groove.
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公开(公告)号：US11745396B2
公开(公告)日：2023-09-05
申请号：US17188171
申请日：2021-03-01
Applicant: BEIJING INSTITUTE OF TECHNOLOGY
Inventor： Chunguang Xu , Peng Yin , Yuren Lu , Jianfeng Song , Wenyuan Song , Shuangyi Li
IPC: B29C35/02
CPC classification number: B29C35/0261 , B29C35/0227
Abstract: The present application relates to the technical field of the research on energetic composite materials, and in particular to a device and a method for controlling transverse and longitudinal stress waves during the curing process of energetic composite materials. The device for controlling transverse and longitudinal stress waves comprises a curing vessel containing an energetic composite materials to be cured; a vertical exciter that is vertically incident to the curing vessel; and a plurality of oblique exciters which are arranged around the vertical exciter and obliquely incident to the curing vessel, wherein the oblique exciters have inclination angles between a first critical angle and a second critical angle. By means of incident transverse and longitudinal waves, the internal radial residual stress and the internal axial residual stress are reduced and homogenized, so as to improve stability and mechanical property of the energetic composite materials during curing.
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