液压

Huangpu Town, Zhongshan City Niu Li maschinenbau 13823156967 Luosheng are handling the production of hydraulic machinery specialized factories, is an advanced manufacturing technology by relying on foreign countries and the rise of emerging enterprises, with a wealth of experience and solid strength, in order to provide security clients and high-efficiency, multi-angle logistics handling equipment; Huangpu Town, Zhongshan City Niu Li maschinenbau main products are: hand pallet trucks, manual hydraulic elevated cars, increased vehicle electro-hydraulic, self - increased hydraulic vehicles, hydraulic lift platform, hydraulic lift car tail plate, tank trucks, platform trucks carrying more than ten kinds of hydraulic equipment, we can according to customer demand for the development of new products; Zhongshan huangpu Cow town Machinery factory is the only set auto hydraulic lift tail plate development and the development, production and sales of integrated production enterprises, the product has passed the production of AQSIQ license certification, 70% of export to Hong Kong Products , Macao, Taiwan and other regions,"cow power" brand auto hydraulic lift tail plate has become a well-known domestic and foreign large enterprises and government agencies preferred brand; cow power Zhongshan maschinenbau domestic product are hand pallet trucks professional one factory, with an annual output has reached 50,000 units, the production of "cow power" brand hand pallet trucks have been the German TUV Certification Body of GS / CE certificate.

中山市黄圃镇牛力机械制造厂罗生13823156967是生产液压搬运机械的专业厂，是一个依托国外先进制造技术而掘起的新兴企业，拥有丰富的经验和雄厚的实力，为客户提供安全、高效率的、多角度的物流搬运设备；中山市黄圃镇牛力机械制造厂主要的产品有：手动液压搬运车、手动液压升高车、电动液压升高车、自行式液压升高车、液压升降平台、汽车液压升降尾板、油桶车、平台车等十余种液压搬运设备，我们可根据客户的需求开发各种新产品；中山市黄圃镇牛力机械制造厂是国内唯一集汽车液压升降尾板的开发与研制，批量生产以及销售的一体化生产企业，产品已通过国家质检总局的生产许可认证，产品70%出口港、澳、台等地区，"牛力"牌汽车液压升降尾板已经成为国内外众多知名企业及政府机关的首选品牌；中山市牛力机械制造厂是国内生产手动液压搬运车的专业工厂之一，年产量已达到50000台，生产的"牛力"牌手动液压搬运车已获得德国TUV认证机构的GS/CE证书。

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

Hong Da液压机械厂Jieyang, is one of more than 20 years of professional standards of design and production of hydraulic machinery enterprises, the main products: Drawing of 4 double-action machine, the framework of hydraulic machine, cutting machine, clips, etc.

揭阳市洪达液压机械厂，是一家具有二十多年专业设计生产标准液压机械的企业，主要产品有：四柱双动拉伸机、框架型液压机、裁断机、压板机等。

Ning Boheng tells limited company of hydraulic pressure motor is the professional production company that the design makes equipment of system of actuating device of gyrator of winch of motor of hydraulic pressure of type of incurvate line motor, crankshaft, hydraulic pressure, hydraulic pressure, quiet hydraulic pressure, of all kinds hydraulic pressure and hydraulic pressure.

宁波恒通液压马达有限公司是设计制造内曲线马达、曲轴式液压马达、液压绞车、液压回转器、静液压驱动装置、各类液压系统及液压设备的专业制造公司。

Acquired Tianjin Construction Machinery Ltd. of natural gas transmission pipeline hydraulic equipment production line project of the country are supporting equipment; Cixi Burgmann Sealing Materials Company W-type high temperature and high pressure spiral wound gasket has been successfully used to HYDROCRACKER up; Dalian Hydraulic Parts Plant Factory and Shanxi Changzhi Hydraulic steering vane pump, are of medium and heavy motor vehicle steering system of the key components, the current annual output of both plants has reached more than 10 million units; Qingdao Kipper sealed the company's new portfolio of large-scale bi-directional sealing and anti-water oil seal are respectively 9 tons FAW Jiefang trucks and tractor trailers 1 matching seals; addition Tianjin Co., Ltd. special precision hydraulic hydrostatic transmission devices and many way valve, Huzhou Miguel pieces of the company's multi-function hydraulic slide-valve, Weihai, a combination of pneumatic components调压阀the air relief valve, Guizhou Feng Yang's hydraulic pump stations and hydraulic valves, such as shift , are well received by users.

天津市精研工程机械传动有限公司的天然气输送管道生产线液压设备是国家西气东输工程的配套设备；慈溪博格曼密封材料公司的高温高压W型缠绕垫片，现已成功地用于加氢裂化装置上；大连液压件厂和山西长治液压件厂的转向叶片泵，是中、重型汽车转向系统中的关键部件，目前两个厂的年产量已达10万台以上；青岛基珀密封公司的新型组合双向密封和大型防泥水油封是分别为一汽解放牌9吨车和一拖拖拉机配套的密封件；此外天津特精液压股份有限公司的静液压传动装置和多路阀、湖州生力液压件公司的多功能滑阀、威海气动元件公司的组合调压阀的空气减压阀、贵州枫阳液压公司的液压泵站和液压换挡阀等，都深受用户的好评。

With more isthe piston - spring type energy storer, this energy storer is locatedbetween the solenoid valve and the dump pump, comes by the wheelcylinder 液压油 to enter the energy storer, then the compressionspring causes the energy storer hydraulic pressure cavity volume tochange in a big way, to temporarily stores up the brake fluid.

用得较多的为活塞-弹簧式储能器，该储能器位于电磁阀与回油泵之间，由轮缸来的液压油进入储能器，进而压缩弹簧使储能器液压腔容积变大，以暂时储存制动液。

Located in Gu Ting Shan Economic Developing Zone, LiuZhouCity, Lihe covers more than 10,000 square meters, in which more than 6000 square meters are plants. Lihe has excellent technical measuring devices and laboratory equipment including 1 damping device production line , 2 上边梁装饰条 lines, 4 sebific duct lines, a 14"and a 16" rubber processing mills, a 35 litre 密炼机, 13 50-100 tone 电动液压成型机,ect.

公司位于广西工业重地柳州市古亭山经济开发区乐业园，占地面积1万多平方米，其中生产面积6000多平方米，现公司主要设备有2条阻尼胶生产线，2条上边梁装饰条生产线、4条胶管生产线、1台14寸炼胶机，1台16寸炼胶机，1台35升密炼机，13台50-100吨电动液压成型机，12台注塑机和2百多套产品模具，以及良好的技术检测手段和实验设备。

Located in Gu Ting Shan Economic Developing Zone, Liu Zhou City, Lihe covers more than 10,000 square meters, in which more than 6000 square meters are plants. Lihe has excellent technical measuring devices and laboratory equipment including 1 damping device production line , 2 上边梁装饰条 lines, 4 sebific duct lines, a 14"and a 16" rubber processing mills, a 35 –litre 密炼机, 13 50-100 tone 电动液压成型机,ect.

公司位于广西工业重地柳州市古亭山经济开发区乐业园，占地面积1万多平方米，其中生产面积6000多平方米，现公司主要设备有2条阻尼胶生产线，2条上边梁装饰条生产线、4条胶管生产线、1台14寸炼胶机，1台16寸炼胶机，1台35升密炼机，13台50-100吨电动液压成型机，12台注塑机和2百多套产品模具，以及良好的技术检测手段和实验设备。

SHANGHAI UPSUN Hydraulic manufacture CO., LTD. is a China and foreign countries investment corporation, situated in south suburb Industry Park of SHANGHAI. It is specialized in manufacturing hydraulic motor, wheel drives and track drives, hydraulic slew drives,hydraulic winch and whole set of hydraulic system.

上海展阳液压制造有限公司是中外合资企业，位于上海南郊工业园区，专业生产液压马达、液压传动装置、液压回转装置、液压绞车、液压阀件及液压系统等产品，并代理美国PARKER液压阀件和液压泵以及美国SUN公司插装阀件。

About Ningbo Yinzhou Zhenchuan液压机械厂, is a production, management, scientific research as one of professional-type tube manufacturers, production of domestic and international series of high, medium, low-pressure hose connector business, the Company has a group of high-quality , High-tech design and professional workforce.

宁波市鄞州振川液压机械厂，是一家生产、经营、科研为一体的管件专业型厂家，生产国内及国际系列高、中、低压胶管接头的企业，本公司拥有一批高素质、高技术的专业设计人员和职工队伍。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。