公开(公告)号：US11335018B1

公开(公告)日：2022-05-17

申请号：US17571400

申请日：2022-01-07

申请人： Weihai Innovation Institute, Qingdao University ,  QINGDAO UNIVERSITY ,  Qingdao Point Cloud Intelligent Technology Co., Ltd.

发明人： Weizhong Zhang ,  Zenghui Liu ,  Chi Zhang ,  Hongfeng Zhang ,  Cuimei Yuan ,  Yongpan Li ,  Tianyu Chen

IPC分类号： G06T7/521 ,  G06T5/30 ,  G06T5/00 ,  G06T7/238 ,  G06T7/536

摘要： The present application provides a volumetric measuring method and apparatus based on a TOF depth camera, which is achieved by: acquiring depth images; denoising the depth images; selecting a first feature area of the first depth image and a second feature area of the second depth image that have been denoised respectively, traversing each pixel point in the first feature area at multiple traversal speeds, and matching a first depth value of a current pixel point with a second depth value of a target pixel point corresponding to the current pixel point in the second feature area to acquire multiple total similarity values; determining a traversal speed corresponding to a maximum total similarity value as an instantaneous speed at a current moment; calculating a package volume according to the instantaneous speed. The present application effectively solves the problem that an accurate package volume cannot be obtained when a speed of the conveyor belt is not fixed, and high in feasibility.

公开(公告)号：US12103785B2

公开(公告)日：2024-10-01

申请号：US17729492

申请日：2022-04-26

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY ,  IK GUJRAL PUNJAB TECHNICAL UNIVERSITY

发明人： Changhe Li ,  Minkai Chen ,  Zongming Zhou ,  Bo Liu ,  Yun Chen ,  Huajun Cao ,  Shubham Sharma ,  Naiqing Zhang ,  Qidong Wu ,  Teng Gao ,  Yanbin Zhang ,  Mingzheng Liu ,  Xiaoming Wang ,  Min Yang ,  Hao Ma ,  Xifeng Wu

IPC分类号： B65G47/90 ,  B65G47/42 ,  B65G57/03

CPC分类号： B65G47/42 ,  B65G47/901 ,  B65G47/905 ,  B65G57/03 ,  B65G2201/0294 ,  B65G2811/0663

摘要： Provided an automatic feeding device for automotive wheel hub, comprising a separable material rack having material rack units capable of being stacked in turn, a first roller table for conveying the separable material rack containing the wheel hub to a second roller table, and a material rack separating device having a support frame and material rack inserting and taking devices; the second roller table, under which a lifting platform is mounted, is located at a first end of lower part of the material rack inserting and taking device; the material rack inserting and taking device splitting the separable material rack into units, and placing to a third roller table being arranged at a second end of the lower part thereof; a manipulator, for grasping and placing the wheel hub from the material rack unit to a fourth roller table being on a second side thereof.

公开(公告)号：US20240279452A1

公开(公告)日：2024-08-22

申请号：US18648964

申请日：2024-04-29

申请人： QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Aihua HE ,  Chenguang LIU ,  Huafeng SHAO

IPC分类号： C08L23/22 ,  C08F2/01 ,  C08F2/06 ,  C08F4/659 ,  C08F210/08

CPC分类号： C08L23/22 ,  C08F2/01 ,  C08F2/06 ,  C08F4/65912 ,  C08F210/08 ,  C08F2400/02 ,  C08F2800/20 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2207/10

摘要： Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.

公开(公告)号：US12030812B1

公开(公告)日：2024-07-09

申请号：US18429030

申请日：2024-01-31

申请人： Qingdao University of Technology

发明人： Zuquan Jin ,  Bo Pang ,  Yunsheng Zhang ,  Dongshuai Hou ,  Heping Zheng

IPC分类号： C04B28/00 ,  C04B24/02 ,  C04B103/00 ,  C04B111/74

CPC分类号： C04B28/006 ,  C04B24/023 ,  C04B2103/0046 ,  C04B2111/74

摘要： An underwater rapid repair material for marine steel structure comprises: 20 to 50 parts by weight of an alkali activation material, 3 to 12 parts by weight of a fast hardening waterborne polymer curing agent, 2 to 8 parts by weight of a fast hardening waterborne polymer precursor, 30 to 100 parts by weight of an aggregate, 1 to 5 parts by weight of an activator and 3 to 20 parts by weight of a water. The underwater rapid repair material provided by the present invention is not dispersed and segregated in water, with an initial setting time as low as 0.5 hours and a final setting time as low as 1.1 hours, after pouring 3 hours, the compressive strength and flexural strength can reach about 60 MPa and 10 MPa respectively, and has high bonding strength to steel and is not easy to fall off after solidification.

公开(公告)号：US20240174566A1

公开(公告)日：2024-05-30

申请号：US18280777

申请日：2023-02-09

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY

发明人： Shaochun Li ,  Xu Chen ,  Mengjun Hu ,  Ang Liu ,  Yongjuan Geng ,  Jialin Jiang

IPC分类号： C04B18/02 ,  C04B14/30 ,  C04B28/02 ,  C04B40/02

CPC分类号： C04B18/023 ,  C04B14/305 ,  C04B28/02 ,  C04B40/0231

摘要： Provided are a nano-titanium dioxide (NT)/biochar (BC) composite, and a preparation method and use thereof, which belong to the technical field of cement-based materials. NT is introduced into a porous structure of the micron-sized BC, which not only addresses the high aggregation of NT, but also reduces Ca(OH)2 size and crystal growth orientation through effects such as filling and nucleation brought by NT in the porous structure of BC. In this way, more C—S—H gels are generated to fill the pores, thereby improving an interfacial transition zone (ITZ), which enhances the mechanical properties such as compressive strength and flexural strength. The NT/BC composite of the disclosure is doped into a cement-based material, which allows that in a surface layer of the cement-based material, CO2 absorption capacity could be improved through carbon sequestration properties and the porous structure of the composite, and the carbonization of the surface layer could be accelerated by hydration accelerating properties of the NT to form a calcium carbonate surface protective layer, thereby improving durability of the cement-based material.

公开(公告)号：US11987567B2

公开(公告)日：2024-05-21

申请号：US17899814

申请日：2022-08-31

申请人： Qingdao University of Science and Technology

发明人： Yingjie Zhao ,  Wenqi Qiu ,  Hui Liu ,  Zhenxiu Zhang ,  Jinyu Zhao

IPC分类号： C07D319/12 ,  B01J31/04 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06

CPC分类号： C07D319/12 ,  B01J31/04 ,  B01J37/009 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J37/06 ,  B01J2231/005 ,  B01J2531/002

摘要： The present invention discloses a synthesis method of lactide by confinement effect catalysis of crystalline porous polymer material, wherein the method comprising: (I) synthesis of catalyst; (II) synthesis of lactide by confinement effect catalysis; and (III) purification of lactide. In the present invention, a yield of L-lactide by catalysis of L-lactic acid by crystalline polymers is as high as 85.6%, which is 10% higher than the yield of lactide by H-β molecular sieve reported in documents currently available; it is easy to prepare the crystalline porous polymer material catalyst, which is environmental friendly, has a high yield and is recyclable, for consecutive 7 times the catalysis yield is maintained to be higher than 70%, and catalysis yield conservation rate is far higher than catalysis effects of catalysts reported in documents currently available.

公开(公告)号：US11951487B2

公开(公告)日：2024-04-09

申请号：US17285627

申请日：2020-05-09

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY ,  RESEARCH INSTITUTE OF AGRICULTURAL MECHANIZATION XINJIANG ACADEMY OF AGRICULTURAL SCIENCES ,  XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.

发明人： Changhe Li ,  Mingzheng Liu ,  Xiaoming Wang ,  Huimin Yang ,  Xinping Li ,  Xiangdong Liu ,  Tuluhon Turdi ,  Ji Che ,  Lianxing Gao ,  Huayang Zhao ,  Xiaowei Zhang ,  Yanbin Zhang ,  Yifei Chen ,  Yali Hou

IPC分类号： B02C23/38 ,  B02C2/10 ,  B02C19/00 ,  B02C19/06 ,  B02C21/00 ,  B02C23/02 ,  B02C23/30

CPC分类号： B02C23/38 ,  B02C19/005 ,  B02C21/00 ,  B02C23/02 ,  B02C23/30

摘要： The present invention discloses a same-cavity integrated vertical high-speed multistage superfine pulverizing device and method for walnut shells. The same-cavity integrated vertical high-speed multistage superfine pulverizing device for walnut shells includes a double-channel sliding type feeding device and a same-cavity integrated vertical pulverizing device. The same-cavity integrated vertical pulverizing device includes a material lifting disc and a same-cavity integrated vertical pulverizing barrel. A first-stage coarse crushing region, a second-stage fine crushing region, a third-stage pneumatic impact micro pulverizing region and a fourth-stage airflow mill superfine pulverizing region are disposed in the same-cavity integrated vertical pulverizing barrel. Walnut shells falling through the double-channel sliding type feeding device are uniformly lifted by the material lifting disc to a wedge-shaped gap of the first-stage coarse crushing region to be coarsely crushed, and coarsely crushed materials are finely crushed by the second-stage fine crushing region through a two-stage wedge-shaped direct-through gradually reducing gap. The third-stage pneumatic impact micro pulverizing region performs high-speed collision on finely crushed walnut shell particles, and walnut shell fine particles are carried by a high-speed airflow and are collided and violently rubbed to be pulverized. The microparticle grading is realized by the fourth-stage airflow mill superfine pulverizing region by using arc-shaped blades, and microparticles conforming to a particle size condition are attracted out through negative pressure attraction.

公开(公告)号：US20240110479A1

公开(公告)日：2024-04-04

申请号：US18172775

申请日：2023-02-22

申请人： Qingdao University of Technology

发明人： Yongjun ZHANG ,  Fei LIU ,  Sijia LIU ,  Junyi WANG ,  Bin GONG ,  Yingming WU ,  Ruiquan LU ,  Qingsong WANG ,  Qinghui XU ,  Xiaoming GUAN ,  Mingdong YAN ,  Xiangyang NI ,  Pingan WANG ,  Shuguang LI ,  Lin YANG ,  Ning NAN ,  Dengfeng YANG

IPC分类号： E21F17/18

CPC分类号： E21F17/18 ,  E21D9/00

摘要： The present disclosure provides a multi-factor quantitative analysis method for deformation of a neighborhood tunnel. The method includes the following steps: analyzing monitoring data generated at a tunnel site; simulating collapse occurring at a shallow buried section of a tunnel; determining the degree of influence of each factor on the tunnel and a stratum; and determining quantitative influence of each factor on tunnel deformation. The present disclosure can not only provide an accurate theoretical basis for the construction of the shallow buried section of the small-distance tunnel, but also guarantee safety and cost saving during tunnel construction.

公开(公告)号：US11898699B2

公开(公告)日：2024-02-13

申请号：US17279491

申请日：2020-02-06

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY ,  SHANGHAI JINZHAO ENERGY SAVING TECHNOLOGY CO., LTD.

发明人： Changhe Li ,  Zhenjing Duan ,  Huajun Cao ,  Xuefeng Xu ,  Naiqing Zhang ,  Lan Dong ,  Yanbin Zhang ,  Xiufang Bai ,  Wentao Wu ,  Teng Gao ,  Min Yang ,  Dongzhou Jia ,  Runze Li ,  Yali Hou

IPC分类号： F16N7/32 ,  B23Q11/10 ,  B24B55/12 ,  F01M13/04 ,  B01D45/16 ,  F16C33/66 ,  B01D50/20 ,  B01D46/00

CPC分类号： F16N7/32 ,  B23Q11/1046 ,  B23Q11/1069 ,  B24B55/12 ,  B01D45/16 ,  B01D46/0031 ,  B01D50/20 ,  B01D2273/30 ,  F01M2013/0438 ,  F16C33/6662

摘要： An oil mist recovery, separation and purification device for a minimum quantity lubricant (MQL) grinding process, including: a pneumatic separation mechanism, a pipeline and a fan fixedly connected with one end of the pipeline, wherein the fan is configured to form a negative pressure in the pipeline, one cone-shaped filter mesh mechanism is disposed in the pipeline, and a tip of the cone-shaped filter mesh mechanism faces the side of an air inlet direction of the pipeline; and a filtering and recovery mechanism connected with the pipeline and including a case body, a filtering mechanism and a recovery mechanism, wherein the case body is connected with the pipeline through a connecting part, and the filtering mechanism is connected with the recovery mechanism. The device can separate, recover and reuse oil mist particles in the air.

公开(公告)号：US11819047B2

公开(公告)日：2023-11-21

申请号：US17279436

申请日：2020-02-06

申请人： QINGDAO UNIVERSITY OF TECHNOLOGY ,  XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.

发明人： Changhe Li ,  Mingzheng Liu ,  Yucheng Wang ,  Yanbin Zhang ,  Ji Che ,  Yali Hou ,  Xiaoming Wang ,  Yitian Feng ,  Rong Wang ,  Yiping Feng ,  Huaiyu Wang ,  Zhenming Jia ,  Lei Zhao ,  Guangzhen Miao ,  Runze Li ,  Teng Gao

IPC分类号： A23N5/00

CPC分类号： A23N5/00

摘要： A cam roller type horizontal extrusion cracking system for walnuts, including feeding, cracking and falling devices fixed accordingly on a stand. The feeding device includes a feeding box; an intermittent feeding roller is arranged therein; one side of the roller includes a feeding baffle plate, the other side includes an adjustable feeding scraper blade mechanism; and opposing feeding slots are formed in the roller. The cracking device includes an extrusion box body; movable and fixed tooth-shaped extrusion plates are oppositely mounted therein; one side of the movable plate opposite the fixed includes an extrusion cam; the plates have a plurality of tooth gaps; a walnut passes through the feeding device, falls into a gap between the plates; the cam drives the movable plate to do a periodic reciprocating motion, to synchronously cooperate with the fixed plate to perform extrusion cracking on the walnut.