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申请号:201911109374.6 公开号:CN110940353A 主分类号:G01C25/00
摘要:【中文】本发明涉及一种裸石英振子的压电激励装置及品质因子的测试装置和方法,改善石英谐振子激励方法,压电激励装置包括固定连接的激励头和激励头固定装置;激励头固定装置上设置有电气接口和压电材料,通过电气接口接收激励信号后,通过压电材料使激励头产生振动,激励头振动后带动待测石英振子振动。以保证谐振子在不同真空度下及金属化前有效激励,通过控制激励信号即可灵活调整振动的幅度和频率,可实现裸谐振子的大位移的初始激励,结构及实现过程简单并且可以进行定点激励。 【EN】The invention relates to a piezoelectric excitation device of a bare quartz vibrator and a device and a method for testing quality factors, and improves the excitation method of a quartz harmonic oscillator, wherein the piezoelectric excitation device comprises an excitation head and an excitation head fixing device which are fixedly connected; the excitation head fixing device is provided with an electrical interface and a piezoelectric material, after the electrical interface receives an excitation signal, the piezoelectric material enables the excitation head to vibrate, and the excitation head drives the quartz vibrator to be tested to vibrate after vibrating. The large-displacement initial excitation of the bare harmonic oscillator can be realized by controlling the excitation signal to flexibly adjust the amplitude and the frequency of the vibration, the structure and the realization process are simple, and the fixed-point excitation can be performed.
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申请号:201911095500.7 公开号:CN111014345A 主分类号:B21C47/30
摘要:【中文】本发明公开了一种无回转接头的卷轴,包括卷轴组件、涨缩缸和一端插接在卷轴组件内的芯轴,所述芯轴的另一端固定有轴承,所述轴承紧插在连接套筒内,所述连接套筒与涨缩缸缸杆固定连接,所述轴承、芯轴、连接套筒、涨缩缸缸杆的中心轴线重合。有益效果在于:本发明所述的卷轴采用无回转接头的方式与涨缩缸连接,可在涨缩缸不旋转的情况下实现卷轴的运转和涨缩,连接成本相比采用回转接头连接要低,而且连接可靠性高,不存在回转接头内泄增加能耗的问题,实用性强。 【EN】The invention discloses a reel without a rotary joint, which comprises a reel component, an expansion and contraction cylinder and a mandrel, wherein one end of the mandrel is inserted in the reel component, a bearing is fixed at the other end of the mandrel, the bearing is tightly inserted in a connecting sleeve, the connecting sleeve is fixedly connected with an expansion and contraction cylinder rod, and the central axes of the bearing, the mandrel, the connecting sleeve and the expansion and contraction cylinder rod are coincided. Has the advantages that: the reel is connected with the expansion and contraction cylinder in a non-rotary joint mode, the reel can run and expand and contract under the condition that the expansion and contraction cylinder does not rotate, the connection cost is lower than that of the reel connected by adopting a rotary joint, the connection reliability is high, the problem that the energy consumption is increased due to internal leakage of the rotary joint is solved, and the reel is high in practicability.
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申请号:201911298682.8 公开号:CN111041428A 主分类号:C23C14/30
申请人:【中文】北京航空航天大学【EN】BEIHANG University 申请日:2019.12.17 公开日:2020.04.21
摘要:【中文】本发明公开了一种基于EB‑PVD制备纳米碳化物增强基体稳定性的方法,采用EB‑PVD设备沉积一层致密碳膜,结合扩散处理,使得碳元素与单晶高温合金基体近表面区域中难熔元素结合原位生成弥散分布的纳米碳化物,将难熔元素以碳化物的形式固定在基体内,以抑制基体中难熔元素在服役过程中的损失速度,并增强基体的高温组织稳定性,防止在服役过程中产生二次反应区(SRZ)。本发明采用EB‑PVD设备在单晶基体上沉积碳膜,采用纯碳作为碳源,克服了在扩散中碳活度的差异,保持了碳活度的一致性,避免其他渗碳过程,如化学气相渗碳过程中气体成分波动或碳活度不易控制等问题,提高了碳化物数量、形貌、分布以及深度的可控性。 【EN】The invention discloses a method for preparing nano carbide based on EB-PVD (electron beam-physical vapor deposition) to enhance the stability of a matrix, which is characterized in that a layer of compact carbon film is deposited by EB-PVD equipment, diffusion treatment is combined, so that carbon elements and refractory elements in the near-surface region of a single crystal high-temperature alloy matrix are combined to generate nano carbide in a dispersion distribution mode in situ, the refractory elements are fixed in the matrix in the form of carbide, the loss speed of the refractory elements in the matrix in the service process is inhibited, the high-temperature tissue stability of the matrix is enhanced, and a Secondary Reaction Zone (SRZ) is prevented from being generated in the service process. According to the invention, the EB-PVD equipment is adopted to deposit the carbon film on the single crystal substrate, and pure carbon is adopted as a carbon source, so that the difference of carbon activity in diffusion is overcome, the consistency of carbon activity is kept, the problems of gas component fluctuation or difficulty in controlling carbon activity in other carburizing processes, such as a chemical vapor carburizing process, and the like are avoided, and the controllability of the quantity, the shape, the distribution and the depth of carbides is improved.
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申请号:201911231016.2 公开号:CN110844071A 主分类号:B64C39/02
申请人:【中文】北京航空航天大学【EN】BEIHANG University 申请日:2019.12.04 公开日:2020.02.28
摘要:【中文】本发明提供一种可长航时宽速域高机动巡飞的无人飞行器。该巡飞无人飞行器主要包括:机身、设置在所述机身两侧的一对可折叠的机翼内翼段、沿展向可伸缩的机翼外翼段,设置在所述机身尾部的一对可折叠上V型尾翼、一对可折叠腹鳍以及机身尾部的动力。所述机身两侧的两个可变体折叠机翼根据使用需求,可在机翼自身所在平面内转动,实现折叠与变后掠翼功能;所述沿展向可伸缩的外翼段,以辅助增大机翼展弦比;所述机身尾部的一对可折叠上V型尾翼和一对可折叠腹鳍,以增强机动性,相对常规尾翼具有低的阻力特性;所述动力安装于机身后段,可选安装涡喷动力、活塞动力、涡喷/活塞双动力,使巡飞无人飞行器高效稳定飞行。折叠机翼在不同速度下位置的变换,以及沿展向可伸缩的外翼段,可折叠的上V型尾翼、可折叠腹鳍、机身尾部动力,共同提高了巡飞无人飞行器在不同速度环境下的适应能力。 【EN】The invention provides an unmanned aerial vehicle capable of long-endurance, wide-speed-range and high-maneuvering cruising. This patrol and fly unmanned vehicles mainly includes: the aircraft comprises an aircraft body, a pair of foldable wing inner wing sections arranged on two sides of the aircraft body, a wing outer wing section capable of stretching along the unfolding direction, a pair of foldable upper V-shaped empennages arranged on the tail part of the aircraft body, a pair of foldable ventral fins and power of the tail part of the aircraft body. The two variable folding wings on the two sides of the machine body can rotate in the plane where the wings are located according to use requirements, so that the functions of folding and variable sweepback wings are realized; the outer wing section is telescopic along the spanwise direction so as to assist in increasing the aspect ratio of the wing; a pair of foldable upper V-shaped empennages and a pair of foldable ventral fins at the tail part of the fuselage to enhance maneuverability, and the tail wing has low resistance characteristic compared with the conventional empennages; the power is installed in the rear section of the aircraft body, and the turbojet power, the piston power and the turbojet/piston dual power can be selectively installed, so that the cruise unmanned aircraft can fly efficiently and stably. The positions of the folding wings are changed at different speeds, the outer wing sections which can stretch along the unfolding direction, the folding upper V-shaped empennage, the folding ventral fins and the power of the tail of the unmanned aerial vehicle body jointly improve the adaptability of the cruise unmanned aerial vehicle under different speed environments.
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申请号:201911314226.8 公开号:CN110842428A 主分类号:B23K37/02
申请人:【中文】阿尔法起重机有限公司【EN】Alfa Crane Co., Ltd. 申请日:2019.12.19 公开日:2020.02.28
摘要:【中文】本发明属于起重设备生产工具技术领域,具体而言,涉及一种自动焊自动找正装置,包括机架,机架上方设置有移动平台,移动平台通过滚轮滚动的安装在机架两侧;在移动平台的侧面设置有电气箱,电气箱内设置有控制系统,在移动平台的前端设置有双向直线导轨机构,在双向直线导轨机构上滑动的安装有焊枪升降机构,焊枪升降机构上连接有焊枪调整机构,焊枪调整机构上连接有焊枪,焊枪通过送料管与电焊机连接。本发明的技术方案利用双向直线导轨机构,配合焊枪升降机构和焊枪调整机构来实现焊枪的自动焊接目的,在焊枪调整机构的调整电推杆上安装有行程传感器,使得焊枪调整机构能够配合控制系统实现沿着被焊接板材的弯曲度自动调整焊缝位置,极大的提高了焊接的质量和速度。 【EN】The invention belongs to the technical field of production tools of hoisting equipment, and particularly relates to an automatic welding alignment device which comprises a rack, wherein a moving platform is arranged above the rack, and the moving platform is arranged on two sides of the rack in a rolling manner through rollers; the electric welding machine comprises a moving platform, and is characterized in that an electric box is arranged on the side face of the moving platform, a control system is arranged in the electric box, a bidirectional linear guide rail mechanism is arranged at the front end of the moving platform, a welding gun lifting mechanism is slidably arranged on the bidirectional linear guide rail mechanism, a welding gun adjusting mechanism is connected onto the welding gun lifting mechanism, a welding gun is connected onto the welding gun adjusting mechanism, and the welding gun is connected with an electric welding machine through a feeding pipe. According to the technical scheme, the automatic welding purpose of the welding gun is achieved by utilizing the bidirectional linear guide rail mechanism and matching with the welding gun lifting mechanism and the welding gun adjusting mechanism, the stroke sensor is arranged on the adjusting electric push rod of the welding gun adjusting mechanism, so that the welding gun adjusting mechanism can match with the control system to achieve automatic adjustment of the position of a welding seam along the curvature of a welded plate, and the welding quality and speed are greatly improved.
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申请号:201911210359.0 公开号:CN110937671A 主分类号:C02F1/52
摘要:【中文】本发明公开了一种具有氧化性能混凝剂的制备方法,本发明涉及水处理技术领域。该具有氧化性能混凝剂的制备方法,通过采用两种混凝剂,对低浊有机物污染污水、原水混凝效果好,对腐殖酸去除率较常规混凝剂和混凝过程均有大幅度提高,通过采用纳米铁,使得混凝过程中原位发生氧化反应,提高有机物去除效率,通过在混凝过程中形成的絮体颗粒质量大,有磁性,沉淀效果好,能够在后续沉淀池中迅速沉淀,混凝剂投量低,节约药剂,同时底泥具有可回收性,混凝过程对水的碱度、pH值等影响小,适用于多种污废水、地表水的处理,适用性强,应用范围广,很好的解决了现有混凝方法在处理低浊有机污染水体时混凝效率低下和净化效果差的问题。 【EN】The invention discloses a preparation method of a coagulant with oxidation performance, and relates to the technical field of water treatment. The preparation method of the coagulant with the oxidation performance has the advantages that two coagulants are adopted, the coagulation effect on low-turbidity organic matter polluted sewage and raw water is good, the removal rate of humic acid is greatly improved compared with that of a conventional coagulant and a coagulation process, oxidation reaction is carried out in situ in the coagulation process by adopting nano iron, the removal efficiency of organic matters is improved, floc particles formed in the coagulation process are large in quality, magnetic and good in precipitation effect, can be rapidly precipitated in a subsequent precipitation tank, the dosage of the coagulant is low, medicaments are saved, simultaneously bottom mud has recoverability, the influence of the coagulation process on the alkalinity, the pH value and the like of water is small, the preparation method is suitable for treating various sewage and waste water and surface water, the applicability is strong, the application range is wide, and the problems of low coagulation efficiency and poor purification effect when the existing coagulation method is used for treating low-turbidity organic polluted water are well solved.
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申请号:201911279416.0 公开号:CN110936997A 主分类号:B62B3/02
摘要:【中文】本发明公开了一种商用车保险杠流转运输工位器具,属于保险杠加工领域,包括底座,所述底座的上表面沿长度方向均匀设置有固定板一,固定板一上开设有固定槽一,且固定槽一的一侧开设有敞口,底座上表面的一侧铰接有挡板一,挡板一的顶部焊接有插块,底座上表面的另一侧铰接有挡板二,挡板二的顶部开设有插槽,底座的上表面通过支撑杆固定有顶板,顶板的下表面沿长度方向均匀固定有套筒,套筒内连接有弹簧,弹簧的一端连接有活动杆,活动杆的底端焊接有固定板二,固定板二的底部开设有固定槽二;本发明设计新颖,将保险杠方便的固定在工位器具上,保证在运输过程中工件不变形,表面无磕碰划伤等现象,操作方便,值得推广。 【EN】The invention discloses a commercial vehicle bumper circulation transportation station appliance, which belongs to the field of bumper processing and comprises a base, wherein a first fixed plate is uniformly arranged on the upper surface of the base along the length direction, a first fixed groove is formed in the first fixed plate, an opening is formed in one side of the first fixed groove, a first baffle is hinged to one side of the upper surface of the base, an insert block is welded at the top of the first baffle, a second baffle is hinged to the other side of the upper surface of the base, an insert groove is formed in the top of the second baffle, a top plate is fixed on the upper surface of the base through a supporting rod, a sleeve is uniformly fixed on the lower surface of the top plate along the length direction, a spring is connected in the sleeve, one end of the spring is connected with a movable rod, a; the bumper fixing device is novel in design, the bumper is conveniently fixed on a station device, the workpiece is guaranteed not to deform in the transportation process, the surface is free of the phenomena of collision, scratch and the like, the operation is convenient, and the bumper fixing device is worthy of popularization.
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申请号:201910253245.8 公开号:CN111010240A 主分类号:H04B17/00
摘要:【中文】本发明提供了一种射频基因库系统及违法违规无线电波检测系统,上述射频基因库系统包括:个体划分装置,配置为确定目标地理区域的范围,根据目标地理区域的通信环境确定个体划分方式,根据个体划分方式将目标地理区域划分为多个个体;无线检测器,配置为针对每个个体进行检测,获取每个个体的基础射频数据;射频基因库生成装置,配置为基于每个个体的基础射频数据进行深度神经网络计算,获取每个个体的射频基因;保存每个个体的射频基因,生成目标地理区域的射频基因库。本发明提供的技术方案可以实现无线电监测工作的智能化和自动化,减少人、财、物和时间的不必要浪费,提高无线电管理的工作效率,完善无线电管理体制。 【EN】The invention provides a radio frequency gene library system and a violation radio wave detection system, wherein the radio frequency gene library system comprises: the individual dividing device is configured to determine the range of the target geographic area, determine an individual dividing mode according to the communication environment of the target geographic area, and divide the target geographic area into a plurality of individuals according to the individual dividing mode; the wireless detector is configured to detect each individual and acquire basic radio frequency data of each individual; the radio frequency gene library generating device is configured to perform deep neural network calculation based on the basic radio frequency data of each individual to obtain the radio frequency gene of each individual; and storing the radio frequency gene of each individual to generate a radio frequency gene library of the target geographical area. The technical scheme provided by the invention can realize the intellectualization and automation of radio monitoring work, reduce unnecessary waste of people, property, materials and time, improve the work efficiency of radio management and perfect a radio management system.
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申请号:201910574419.0 公开号:CN111039832A 主分类号:C07C309/14
摘要:【中文】本发明涉及一种从牛磺酸制备的反应体系中除去杂质,进而制备牛磺酸的方法。包括如下步骤:将所述含有牛磺酸碱金属盐的溶液通过碱性阴离子交换树脂柱,使得所述牛磺酸碱金属盐被吸附在所述碱性阴离子交换树脂上,并收集得到洗脱液;用碱性溶液脱附被所述碱性阴离子交换树脂吸附的牛磺酸碱金属盐,得到脱附液;将所述脱附液进行酸化,得到牛磺酸。在本发明除去制备牛磺酸反应体系中杂质的过程中,未引入其他有机溶剂进行除杂,而是采用碱性阴离子交换树脂柱吸附有用物质,分离有机杂质和/或电中性杂质进行除杂。本发明所提供的方法,不仅能够提高牛磺酸产品收率,并且生产工艺简单,且能降低生产能耗,有利于环保。 【EN】The invention relates to a method for preparing taurine by removing impurities from a reaction system for preparing taurine. The method comprises the following steps: passing the solution containing alkali taurate through a basic anion exchange resin column so that the alkali taurate is adsorbed on the basic anion exchange resin, and collecting the eluate; desorbing the alkali taurate salt adsorbed by the basic anion exchange resin with an alkaline solution to obtain a desorption solution; and acidifying the desorption solution to obtain taurine. In the process of removing impurities in the reaction system for preparing taurine, other organic solvents are not introduced for impurity removal, but a basic anion exchange resin column is adopted for adsorbing useful substances, and organic impurities and/or electrically neutral impurities are separated for impurity removal. The method provided by the invention can improve the yield of the taurine product, has a simple production process, can reduce the production energy consumption, and is beneficial to environmental protection.
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申请号:201911351751.7 公开号:CN111037859A 主分类号:B29C45/40
摘要:【中文】本发明公开了一种方便脱模的汽车外围侧板注塑模具,属于汽车配件制造领域,包括底座、下模和上模,所述底座的顶部固定连接有下模,且底座顶部的侧面固定连接有支撑板,所述支撑板的顶部固定套接有液压机构,所述液压机构的底端与上模的顶部固定连接,所述上模的底部固定连接有定位杆,且上模的内部开设有进料槽;本发明通过设置活动槽、顶板和电动推杆,可以在汽车外围侧板取模的过程中,便于从下模的内部对侧板成品的底部进行施力,能够使得侧板成品与下模内壁之间发生松动,避免了传统从模具外部施力容易对侧板成品造成损坏的问题,不仅便于对侧板成品进行脱模,而且也使得脱模时更加省力。 【EN】The invention discloses an automobile peripheral side plate injection mold convenient for demolding, which belongs to the field of automobile accessory manufacturing and comprises a base, a lower mold and an upper mold, wherein the top of the base is fixedly connected with the lower mold, the side surface of the top of the base is fixedly connected with a supporting plate, the top of the supporting plate is fixedly sleeved with a hydraulic mechanism, the bottom end of the hydraulic mechanism is fixedly connected with the top of the upper mold, the bottom of the upper mold is fixedly connected with a positioning rod, and a feeding groove is formed in the upper mold; by arranging the movable groove, the top plate and the electric push rod, force can be conveniently applied to the bottom of the finished side plate from the inside of the lower die in the process of taking the die from the peripheral side plate of the automobile, the finished side plate and the inner wall of the lower die can be loosened, the problem that the finished side plate is easily damaged by applying force from the outside of the die in the prior art is solved, the demoulding of the finished side plate is facilitated, and labor is saved during demoulding.
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