当前查询到33条专利与查询词 "Yu Jianchun"相关,搜索用时0.4531399秒!排序方式:
发明专利:13实用新型: 16外观设计: 4
13 条,当前第 1-10 条 下一页 最后一页 返回搜索页
申请号:202010051517.9 公开号:CN111157238A 主分类号:G01M13/023
摘要:【中文】本发明属于链条生产技术领域,尤其为一种链条断链检测装置,包括操作台,操作台的上方设置有链条,链条的左右两侧分别设置有第一夹块和第二夹块,第二夹块的右侧固定连接有第二连接片,第二连接片的另一端通过转轴转动连接有折叠块,折叠块的右端通过转轴转动连接有第二连接杆,第二连接杆的右端固定连接有固定块,固定块的右侧固定连接有固定片,固定片的上端面贯穿连接有旋转杆,操作台的上端固定安装有气缸;链条经过第一夹块与第二夹块之间,启动气缸使气缸端头向左后方伸长,并使端头将折叠块向后推动,进而链条被第一夹块与第二夹块夹持并停止移动,再使操作台向后移动,拉拽链条向后运动少量距离,从而对链条的应力进行检测。 【EN】The invention belongs to the technical field of chain production, and particularly relates to a chain breakage detection device which comprises an operation table, wherein a chain is arranged above the operation table, a first clamping block and a second clamping block are respectively arranged on the left side and the right side of the chain, a second connecting piece is fixedly connected to the right side of the second clamping block, the other end of the second connecting piece is rotatably connected with a folding block through a rotating shaft, the right end of the folding block is rotatably connected with a second connecting rod through the rotating shaft, the right end of the second connecting rod is fixedly connected with a fixed block, a fixed plate is fixedly connected to the right side of the fixed block, the upper end surface of the fixed plate is connected with a rotating rod in a penetrating; the chain passes through between first clamp splice and the second clamp splice, starts the cylinder and makes the cylinder end extend behind left to make the end with the folding block promote backward, and then the chain is by first clamp splice and the centre gripping of second clamp splice and stop moving, makes the operation panel remove backward again, draws the chain to move a small amount of distances backward, thereby detects the stress of chain.
详细信息 下载全文

申请号:201911087544.5 公开号:CN110887579A 主分类号:G01K11/32
申请人:【中文】华中科技大学【EN】HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY 申请日:2019.11.08 公开日:2020.03.17
摘要:【中文】本发明公开了一种基于分布式光纤拉曼测温系统的动态温度解调方法,该系统包括拉曼测温仪、第一高精度加热台、第二高精度加热台、第三高精度加热台、传感光纤,方法包括在不同温度下对多个采集点产生的背向anti‑Stokes光与背向Stokes光的光强对应的量化值进行采集,得到多组拉曼比值,以第一采集点为基准点,对其他采集点的拉曼比值进行拟合,利用补偿函数对原拉曼比值进行补偿,根据补偿后的拉曼比值计算出温度曲线,再对该温度曲线的测温区的所有温度值拟合一条曲线,将原温度曲线与补偿函数作差再加上室温值的方法,解决了在同一温度下多个测量点测温精度低,测温不稳定,在远离参考点的区域温度测不准和误差大的问题。 【EN】The invention discloses a dynamic temperature demodulation method based on a distributed optical fiber Raman temperature measurement system, which comprises a Raman temperature measuring instrument, a first high-precision heating table, a second high-precision heating table, a third high-precision heating table and a sensing optical fiber, wherein the method comprises the steps of collecting quantized values corresponding to the light intensity of anti-Stokes light and Stokes light generated by a plurality of collecting points at different temperatures to obtain a plurality of groups of Raman ratios, fitting the Raman ratios of other collecting points by taking the first collecting point as a reference point, compensating the original Raman ratio by using a compensation function, calculating a temperature curve according to the compensated Raman ratios, fitting a curve to all temperature values of a temperature measuring area of the temperature curve, and adding a room temperature value to the difference between the original temperature curve and the compensation function, so that the problem that the temperature measurement precision of a plurality of measuring points is low at the same temperature is solved, unstable temperature measurement, inaccurate temperature measurement in a region far away from a reference point and large error.
详细信息 下载全文

申请号:201911243143.4 公开号:CN110920080A 主分类号:B29C65/12
摘要:【中文】本发明提供一种热塑性聚合物矩形平板的对接焊方法,步骤如下:对待焊接相连的平板在焊接区域处开出双面坡口,并焊前处理;在平板朝外的两端施加压力使得平板在焊接区域处的截面紧密接触,向焊接区域吹入热风,将其熔化,再挤入熔融的焊条,使平板在这一面的坡口处连成一体;翻转平板,在已焊接的区域背面进行焊接的底部二次处理,热风吹化焊接处,开槽至露出正面底部焊肉,再挤入熔融的焊条;磨平两面焊接处突出的焊肉,并在两面焊肉上各覆盖焊接上一块热塑性聚合物矩形平板,用于增强焊接区域的强度。利用该焊接方法焊接成的结构,焊接区域强度远大于焊前材料本体强度,不易变形,抗冲击性更强,极大降低焊接带来的风险,从而提高整体的安全性。 【EN】The invention provides a butt welding method of a thermoplastic polymer rectangular flat plate, which comprises the following steps: forming a double-sided groove on a welding area of a flat plate to be welded and connected, and performing pre-welding treatment; applying pressure on the two outward ends of the flat plate to enable the sections of the flat plate at the welding area to be in close contact, blowing hot air into the welding area to melt the hot air, and extruding molten welding rods to enable the flat plate to be connected into a whole at the groove of the flat plate; turning over the flat plate, performing secondary treatment of the bottom of the welding on the back of the welded area, blowing the welding position by hot air, grooving until the bottom of the front is exposed, and extruding the molten welding rod; and grinding welding meat protruding from the welding positions on the two sides, and covering and welding a thermoplastic polymer rectangular flat plate on each welding meat on the two sides for enhancing the strength of the welding area. The structure welded by the welding method has the advantages that the strength of a welding area is far greater than that of a material body before welding, the welding area is not prone to deformation, the impact resistance is higher, risks caused by welding are greatly reduced, and therefore the overall safety is improved.
详细信息 下载全文

申请号:201911243230.X 公开号:CN110901852A 主分类号:B63B73/43
摘要:【中文】本发明提供一种热塑性聚合物船舶的骨架连接方法,属于船舶建造技术领域。该连接方法所采用的基础件为构成热塑性聚合物船舶骨架横纵垂三个方向上的组件,称为构件,包括纵向构件、横向构件和垂向构件,利用构件上特定间距的预制定位缺口进行插接式连接再焊接,保证横纵垂三向的构件在沿构件方向上都是始终连续不断开的。本发明相较传统的船舶骨架焊接方法,大幅提高了施工精度,降低了施工难度和成本;所制成的热塑性聚合物船舶骨架,具有更优异的结构稳定性、强度及抗冲击性能,提高了整船的安全性。 【EN】The invention provides a framework connection method of a thermoplastic polymer ship, and belongs to the technical field of ship construction. The basic parts adopted by the connecting method are assemblies forming the thermoplastic polymer ship framework in the transverse, longitudinal and vertical directions, are called as members and comprise longitudinal members, transverse members and vertical members, and the prefabricated positioning notches with specific intervals on the members are used for plug-in connection and then welding, so that the members in the transverse, longitudinal and vertical directions are always continuous and are not disconnected along the member direction. Compared with the traditional ship framework welding method, the construction precision is greatly improved, and the construction difficulty and cost are reduced; the prepared thermoplastic polymer ship skeleton has more excellent structural stability, strength and impact resistance, and the safety of the whole ship is improved.
详细信息 下载全文

申请号:201911241434.X 公开号:CN110885578A 主分类号:C09D5/08
摘要:【中文】本发明属于钢结构涂料技术领域,具体涉及一种应用于钢结构的水性防锈涂料及其制备方法。该涂料具体配方为:自交联丙烯酸酯乳液30~40份、水溶性三聚氰胺甲醛树脂3~5份、磷酸0.3~0.5份、氨三乙酸0.5~0.8份、硫代乙酰胺0.1~0.2份、1,2‑丙二醇5~8份、聚乙烯醇3~5份、改性碳纳米管2~3份、乙二胺四乙酸二钠1‑2份。本发明制备的防锈涂料施工方便,无需打磨除锈,喷涂后,附着力好,且转锈彻底,防腐能力好,涂膜光滑,无缩孔、橘皮等,耐冲击性能、耐水性及耐候性好;能够形成均一稳定的乳液,不分层,不沉淀,储存性好。 【EN】The invention belongs to the technical field of steel structure coatings, and particularly relates to a water-based antirust coating applied to a steel structure and a preparation method thereof. The specific formula of the coating is as follows: 30-40 parts of self-crosslinking acrylate emulsion, 3-5 parts of water-soluble melamine formaldehyde resin, 0.3-0.5 part of phosphoric acid, 0.5-0.8 part of nitrilotriacetic acid, 0.1-0.2 part of thioacetamide, 5-8 parts of 1, 2-propylene glycol, 3-5 parts of polyvinyl alcohol, 2-3 parts of modified carbon nano tube and 1-2 parts of disodium ethylene diamine tetraacetate. The antirust coating prepared by the invention is convenient to construct, does not need polishing and derusting, has good adhesion force after spraying, complete rust conversion, good corrosion resistance, smooth coating film, no shrinkage cavity, orange peel and the like, and good impact resistance, water resistance and weather resistance; can form uniform and stable emulsion, does not delaminate or precipitate, and has good storability.
详细信息 下载全文

申请号:201911084690.2 公开号:CN110932304A 主分类号:H02J3/36
摘要:【中文】本发明公开一种直流耗能装置控制系统及控制方法,系统包括柔性直流控制保护系统和耗能装置控制系统;方法步骤是:柔性直流控制保护系统采集柔性直流输电系统的交直流信号及设备运行状态,并在交流系统发生故障且满足投退条件时向耗能装置控制系统发送直流耗能投退指令和盈余功率;若通讯正常,耗能装置控制系统根据柔性直流控制保护系统发送的直流耗能投退指令和盈余功率值,结合耗能装置状态投入耗能功率;若通讯故障,耗能装置控制系统根据自身采集的直流电压和电流信号,在需要时投入耗能功率。此种技术方案可根据适应不同的故障类型和控制系统的通讯状态,准确投入需要的耗能功率,稳定控制故障期间直流电压,提高输电系统的稳定性及可靠性。 【EN】The invention discloses a control system and a control method of a direct current energy consumption device, wherein the system comprises a flexible direct current control protection system and an energy consumption device control system; the method comprises the following steps: the flexible direct current control protection system acquires alternating current and direct current signals of the flexible direct current power transmission system and the running state of equipment, and sends a direct current energy consumption switching instruction and surplus power to the energy consumption device control system when the alternating current system fails and meets switching conditions; if the communication is normal, the energy consumption device control system inputs energy consumption power by combining the states of the energy consumption devices according to the direct current energy consumption input and output instruction and the surplus power value sent by the flexible direct current control protection system; if the communication is in fault, the energy consumption device control system puts in energy consumption power when needed according to the direct current voltage and current signals acquired by the energy consumption device control system. The technical scheme can accurately input required energy consumption power according to different fault types and communication states of the control system, stably control direct-current voltage during the fault period, and improve the stability and reliability of the power transmission system.
详细信息 下载全文

申请号:201911242368.8 公开号:CN110922816A 主分类号:C09D123/12
摘要:【中文】本发明属于涂料技术领域,具体涉及一种低VOC含量的水性膨胀钢结构防火涂料及其制备方法。该防火涂料通过以下原料制备而成:聚有机硅氧烷乳液、水溶性三聚氰胺甲醛树脂、聚丙烯、阻燃体系、聚乙烯醇、尿素、季戊四醇、二氧化钛。本发明制备的防火涂料,首先采用聚乙二醇单甲醚‑聚乳酸嵌段共聚物对阻燃剂进行包覆,包覆后的阻燃剂能够显著改善其与成膜剂的相容性,且能够增加涂膜的力学性能,制备的涂料具有优异的耐水性、耐候性及抗紫外线性能。本发明制备的防火涂料,防火效率高,形成的膨胀层发泡细而致密,附着力好,形成的碳化层较硬,且能够增加发泡层的高度,阻燃效果好且稳定性好,不易分层。 【EN】The invention belongs to the technical field of coatings, and particularly relates to a low-VOC-content water-based expansion steel structure fireproof coating and a preparation method thereof. The fireproof coating is prepared from the following raw materials: polyorganosiloxane emulsion, water-soluble melamine formaldehyde resin, polypropylene, a flame-retardant system, polyvinyl alcohol, urea, pentaerythritol and titanium dioxide. According to the fireproof coating prepared by the invention, firstly, the polyethylene glycol monomethyl ether-polylactic acid segmented copolymer is adopted to coat the flame retardant, the coated flame retardant can obviously improve the compatibility of the flame retardant and the film forming agent, the mechanical property of a coating film can be increased, and the prepared coating has excellent water resistance, weather resistance and ultraviolet resistance. The fireproof coating prepared by the invention has high fireproof efficiency, the formed expansion layer is fine and compact in foaming and good in adhesive force, the formed carbonization layer is hard, the height of the foaming layer can be increased, the flame retardant effect is good, the stability is good, and the delamination is not easy to occur.
详细信息 下载全文

申请号:201911084057.3 公开号:CN110897188A 主分类号:A24B3/12
摘要:【中文】本发明涉及一种烤甘薯味香精、制备方法及在卷烟中的应用,通过将3‑甲硫基丙醛、2‑乙酰基呋喃、3‑甲基环戊烷‑1,2‑二酮、3‑甲硫基丙酸乙酯、乙基麦芽酚和乙基香兰素等单体香料进行调配,得到品质稳定、风味可控的烤甘薯味香精,很好的模拟了天然烤甘薯的香味特征,克服了天然烤甘薯香精的制备工艺带来的产率低、成分复杂、难于分离纯化和调配工作量大等问题,避免天然甘薯香精在卷烟中应用时引入的杂气和刺激性,有效提升了卷烟的烤甜香韵,具有很好的应用价值。 【EN】The invention relates to a roasted sweet potato flavor, a preparation method and application thereof in cigarettes, wherein monomer flavors such as 3-methylthiopropanal, 2-acetylfuran, 3-methylcyclopentane-1, 2-dione, 3-methylthioethyl propionate, ethyl maltol, ethyl vanillin and the like are blended to obtain the roasted sweet potato flavor with stable quality and controllable flavor, so that the flavor characteristics of natural roasted sweet potatoes are well simulated, the problems of low yield, complex components, difficulty in separation and purification, large blending workload and the like caused by a preparation process of the natural roasted sweet potato flavor are solved, the offensive odor and irritation introduced when the natural sweet potato flavor is applied in cigarettes are avoided, the roasted sweet note of the cigarettes is effectively improved, and the application value is very good.
详细信息 下载全文

申请号:202010159139.6 公开号:CN111188689A 主分类号:F02D9/10
摘要:【中文】本发明提供一种应用于汽车排气系统技术领域的汽车排气系统排气阀结构,所述的汽车排气系统排气阀结构的执行器分总成(1)包括执行器壳体(3),执行器壳体(3)内的电机(4)的电机轴(7)上设置蜗杆(8)和磁环(9),蜗杆(8)与蜗轮(5)啮合,磁环(9)与电路板(6)连接,蜗轮(5)的蜗轮输出轴延伸到执行器壳体(3)外部,阀体分总成(2)的阀座(11)与蜗轮输出轴连接,阀片(12)与阀座(11)连接,本发明所述的汽车排气系统排气阀结构,能够降低汽车发动机低转速下尾管的低频噪声和汽车发动机高转速下的排气系统背压,在高负荷下释放动感声,提升整车运动感,满足需求。 【EN】The invention provides an exhaust valve structure of an automobile exhaust system, which is applied to the technical field of the automobile exhaust system, wherein an actuator sub-assembly (1) of the exhaust valve structure of the automobile exhaust system comprises an actuator shell (3), a motor shaft (7) of a motor (4) in the actuator shell (3) is provided with a worm (8) and a magnetic ring (9), the worm (8) is meshed with a worm wheel (5), the magnetic ring (9) is connected with a circuit board (6), a worm wheel output shaft of the worm wheel (5) extends to the outside of the actuator shell (3), a valve seat (11) of a valve body sub-assembly (2) is connected with the worm wheel output shaft, a valve plate (12) is connected with the valve seat (11), the exhaust valve structure of the automobile exhaust system can reduce low-frequency noise of a tail pipe of the automobile engine at low rotating speed and exhaust system backpressure of the automobile engine at high rotating speed, and release dynamic sound, the motion sense of the whole vehicle is improved, and the requirements are met.
详细信息 下载全文

申请号:202010182747.9 公开号:CN111187119A 主分类号:C05G3/60
摘要:【中文】本发明提供一种提高烤烟抗病性的叶面肥,各组份重量体积比为:磷酸二氢钾0.2‑0.3kg/L,木醋液0.5‑1kg/L,5‑氨基乙酰丙酸0.1‑0.2kg/L,鱼蛋白0.25‑0.5kg/L。本技术方案的提高烤烟抗病性的叶面肥,烤烟喷施叶面肥后,可以促进烤烟生长,提高了烤烟的抗病性,防治效果明显,对提高烤烟产值和经济效益具有重要意义。 【EN】The invention provides a foliar fertilizer for improving disease resistance of flue-cured tobacco, which comprises the following components in percentage by weight and volume: 0.2-0.3kg/L potassium dihydrogen phosphate, 0.5-1kg/L pyroligneous liquor, 0.1-0.2 kg/L5-aminolevulinic acid and 0.25-0.5kg/L fish protein. According to the technical scheme, after the foliar fertilizer is sprayed on the flue-cured tobacco, the growth of the flue-cured tobacco can be promoted, the disease resistance of the flue-cured tobacco is improved, the control effect is obvious, and the foliar fertilizer has important significance for improving the yield value and the economic benefit of the flue-cured tobacco.
详细信息 下载全文

13 条,当前第 1-10 条 下一页 最后一页 返回搜索页