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大型货车卸货用液压阀质量检测试验台的设计与实现

发布时间:2018-08-11 10:36
【摘要】:随着市场经济的高速发展,大型货车的载货量越来越大,卸货用换向液压阀的质量直接影响着货车的自动卸货的安全性和稳定性,要求换向液压阀有30MPa以上的耐压,并且对其泄漏性能要求严格。如果换向液压阀质量不合格,在卸货过程中就有可能出现翻车等现象。因此,对这一类超高压控制用换向液压阀的质量与性能检测显得非常重要。传统的质量检测方法主要以手工装夹,人工操作换向,通过读取机械仪表的方式进行阀体的质量检测,一般不对数据进行处理、记录与分析,无数据的可追溯性。这种落后的检测方式已不能满足现代生产的质量需求,设计并实现用于检测卸货用超高压液压换向阀、实现检测的自动化装夹并精确检测、以及实现检测数据的可追溯查询成为企业迫切需要解决的技术课题。本文充分利用先进的液压CAT技术,研制了一种可用于同一类型多种不同产品的液压阀检测试验台,并针对阀体内部结构进行了流体分析,优化了检测系统的结构,从而提高了换向液压阀的质量,提升了大型货车卸货时的安全性能。 首先,根据系统要求,并结合TS16949关于多路换向阀质量检测规定,制定了合理的试验方案、试验原理和试验步骤,加工出可用于检测卸货用换向液压阀的试验台;其次,针对计算机测试系统原理,设计了性价比较高的控制系统,合理选型了试验台所需的硬件、分析了装夹液压系统液压缸的运动性能;再次,针对卸货用换向液压阀腔体的流场结构进行了仿真分析,解决了液压冲击、液压元件运动温升与噪音问题;最后,利用Delphi7.0软件开发了人机友好的自动检测软件系统,并对每个模块的功能、检测方法进行了简要说明,对全文的研究工作进行了总结,分析了本试验台存在的不足,并对试验台以后的优化设计工作进行了展望。 该换向液压阀质量检测试验台已成功用于武汉东江阀业制造有限公司液压换向阀的出厂检测,为其液压阀检测提供了性能稳定、质量可靠的试验平台。经过试运行后,该检测试验台满足了该企业的各项检测需求,并大大提高了质量检测的工作效率,为企业创造了巨大的经济效益。
[Abstract]:With the rapid development of market economy, the loading capacity of large freight cars is increasing. The quality of reversing hydraulic valves for unloading has a direct impact on the safety and stability of automatic unloading of freight cars. It is required that the reversing hydraulic valves have the pressure above 30MPa. And strict requirements for its leakage performance. If the quality of reversing hydraulic valve is not up to standard, it is possible to turn over during unloading. Therefore, it is very important to test the quality and performance of this kind of reversing hydraulic valve. The traditional quality inspection methods are mainly manual clamping, manual operation and commutation, and the quality of valve body is detected by reading mechanical instruments. Generally, the data are not processed, recorded and analyzed, and no traceability of data is found. This backward detection method can no longer meet the quality requirements of modern production. The design and implementation of ultra-high pressure hydraulic reversing valve for testing and unloading, automatic clamping and accurate detection are realized. And how to realize the traceability query of inspection data becomes an urgent technical problem that enterprises need to solve. This paper makes full use of the advanced hydraulic CAT technology to develop a kind of hydraulic valve testing test-bed which can be used for the same type and many different products. The fluid analysis is carried out according to the internal structure of the valve body, and the structure of the testing system is optimized. Thus, the quality of reversing hydraulic valve is improved, and the safety performance of large truck is improved when unloading. First of all, according to the system requirements and combined with the quality inspection regulation of the multi-way reversing valve in TS16949, the reasonable test plan, test principle and test procedure are worked out, and the test bench can be used to detect the reversing hydraulic valve for unloading. According to the principle of computer test system, the control system with high performance-to-price ratio is designed, the hardware needed for the test bench is selected reasonably, and the motion performance of the hydraulic cylinder of the clamping hydraulic system is analyzed. The flow field structure of reversing hydraulic valve chamber for unloading is simulated and analyzed, which solves the problems of hydraulic shock, temperature rise and noise of hydraulic components. Finally, a man-machine friendly automatic detection software system is developed by using Delphi7.0 software. The function and testing method of each module are briefly explained, the research work of the full text is summarized, the shortcomings of the test bed are analyzed, and the optimization design work after the test bed is prospected. The reversing hydraulic valve quality test bench has been successfully used in the factory inspection of the hydraulic reversing valve of Wuhan Dongjiang Valve Manufacturing Co., Ltd., which provides a stable and reliable test platform for the hydraulic valve detection. After trial operation, the test bench meets the requirements of the enterprise, and greatly improves the efficiency of the quality inspection, and creates huge economic benefits for the enterprise.
【学位授予单位】:武汉理工大学
【学位级别】:硕士
【学位授予年份】:2012
【分类号】:TH137

【参考文献】

相关期刊论文 前10条

1 吴炳胜,刘体龙,智传锁,姬晓利;液压综合试验台测控系统的研制与开发[J];河北建筑科技学院学报;2005年01期

2 李建永,姜生元,韩宝琦,任翔,杨斌久,王向东;液压综合实验台CAT系统的研究[J];机电产品开发与创新;2003年03期

3 王春梅;周仕强;祝清会;;液压马达的计算机辅助测试[J];煤矿机械;2008年05期

4 王春梅;尚伟锋;李堂芳;黄海波;;液压阀测试系统设计[J];煤矿机械;2009年04期

5 李剑锋;多功能液压阀试验台研制成功[J];煤矿机械;2000年04期

6 时连军,李新平,曾庆良,孙冬冬,冯全斌;多功能液压阀试验台的设计[J];煤矿开采;1999年04期

7 王雷;王幼民;凌雪;;汽车举升机构液压系统的改进设计[J];起重运输机械;2006年10期

8 王艳东;展军;;液压控制系统故障及其诊断[J];设备管理与维修;2007年02期

9 胡燕平;谌铎文;;模块式液压阀试验系统研究[J];实验技术与管理;2006年01期

10 薛金林;农用运输车液压自卸系统的使用维护与故障分析[J];拖拉机与农用运输车;2001年02期

相关硕士学位论文 前5条

1 赵玉奎;电液伺服控制辅助教学CAT系统的研究[D];中国农业大学;2005年

2 罗梅伟;基于LabVIEW的超高压液压元件性能试验系统[D];山东大学;2005年

3 江灏;液压综合试验平台的PLC实时测控系统设计与开发[D];浙江大学;2006年

4 杨明杰;新型液压支架换向阀性能分析与研究[D];郑州大学;2007年

5 金光俊;基于LABVIEW的液压综合试验台的设计与研究[D];燕山大学;2009年



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