本文選題：踏面制動(dòng)單元 + 試驗(yàn)臺(tái)��； 參考：《南京理工大學(xué)》2014年碩士論文

【摘要】：踏面制動(dòng)單元是空氣制動(dòng)系統(tǒng)中的執(zhí)行機(jī)構(gòu),直接影響車輛的行車安全。因此需要對(duì)其進(jìn)行強(qiáng)度試驗(yàn)、泄漏試驗(yàn)、調(diào)整量試驗(yàn)、制動(dòng)力試驗(yàn)等多項(xiàng)性能測(cè)試。 對(duì)踏面制動(dòng)單元的性能測(cè)試試驗(yàn)種類繁多,過程復(fù)雜,而目前大部分踏面制動(dòng)單元生產(chǎn)商和使用商都采用進(jìn)口的試驗(yàn)設(shè)備,但這些智能化程度不高,加大了試驗(yàn)人員的工作強(qiáng)度,使試驗(yàn)數(shù)據(jù)的不確定度提升,并且成本高昂,因此為了提高試驗(yàn)效率,重要的是提升試驗(yàn)數(shù)據(jù)的可靠性以及準(zhǔn)確性,需要設(shè)計(jì)一套具有自主知識(shí)產(chǎn)權(quán)的踏面制動(dòng)單元測(cè)試系統(tǒng)以提高檢測(cè)過程的自動(dòng)化程度。 本項(xiàng)目依據(jù)踏面制動(dòng)單元的工作原理以及踏面制動(dòng)單元的測(cè)試項(xiàng)目要求,研發(fā)設(shè)計(jì)了此踏面制動(dòng)單元測(cè)試系統(tǒng)試驗(yàn)臺(tái)。此試驗(yàn)臺(tái)包括測(cè)試主機(jī)和操作控制臺(tái)兩部分,測(cè)試主機(jī)分為床身和電氣柜,是踏面制動(dòng)單元進(jìn)行性能測(cè)試的主體部分。試驗(yàn)人員通過操作控制臺(tái)控制測(cè)試主機(jī)對(duì)踏面制動(dòng)單元進(jìn)行性能測(cè)試。 為了滿足踏面制動(dòng)單元測(cè)試系統(tǒng)的功能要求、生產(chǎn)要求、安全要求、可靠性要求以及多用途要求的基礎(chǔ)上,在設(shè)計(jì)試驗(yàn)臺(tái)時(shí)設(shè)置了三個(gè)運(yùn)動(dòng)的自由度,兩個(gè)縱向運(yùn)動(dòng)和安裝板的橫向運(yùn)動(dòng)。兩個(gè)縱向運(yùn)動(dòng)相互配合以實(shí)現(xiàn)制動(dòng)器行程測(cè)試和行程補(bǔ)償量測(cè)試,安裝板的橫向運(yùn)動(dòng)可以滿足不同尺寸的制動(dòng)單元安裝后進(jìn)行對(duì)中調(diào)節(jié)；試驗(yàn)臺(tái)設(shè)置了兩路獨(dú)立的供氣氣路,可對(duì)制動(dòng)單元的行駛制動(dòng)缸和駐車制動(dòng)缸一次性進(jìn)行測(cè)試,提高了測(cè)試生產(chǎn)效率；試驗(yàn)臺(tái)的試驗(yàn)壓力調(diào)節(jié)范圍廣,可以滿足各種低壓和高壓制動(dòng)器的測(cè)試試驗(yàn),氣壓調(diào)節(jié)采用高精度比例閥,高精度壓力傳感器和控制電路組成的閉環(huán)氣壓調(diào)節(jié)回路,壓力調(diào)節(jié)精度高；控制部分和數(shù)據(jù)采集系統(tǒng)采用LabVIEW虛擬儀器平臺(tái),通過計(jì)算機(jī)進(jìn)行測(cè)試過程的操作,數(shù)據(jù)采集、分析處理以及測(cè)試報(bào)告的打印,提高了系統(tǒng)的測(cè)試效率,配以高精度傳感器提高了系統(tǒng)的測(cè)試精度；并且試驗(yàn)臺(tái)設(shè)置了多重保護(hù)措施,確保操作人員的人身安全和測(cè)試系統(tǒng)的安全可靠運(yùn)行,減少系統(tǒng)的故障。 此踏面制動(dòng)單元測(cè)試系統(tǒng)可實(shí)現(xiàn)對(duì)不同型號(hào)和規(guī)格踏面制動(dòng)單元包括強(qiáng)度試驗(yàn)、氣密性試驗(yàn)、行程試驗(yàn)、調(diào)整量試驗(yàn)、手動(dòng)緩解試驗(yàn)、制動(dòng)力試驗(yàn)在內(nèi)的多項(xiàng)性能測(cè)試,這些測(cè)試只需試驗(yàn)人員通過操作控制面板來實(shí)現(xiàn),極大地提高了測(cè)試效率,在高精度傳感器的保證下使得測(cè)試數(shù)據(jù)的精度得到了保證。
[Abstract]:The tread brake unit is an actuator in the air brake system, which directly affects the vehicle safety. Therefore, it is necessary to carry out a number of performance tests, such as strength test, leakage test, adjustment test, dynamic test and so on.
There are a wide variety of test tests on the performance of tread brake units, and the process is complex. At present, most of the manufacturers and operators of tread brake units use imported test equipment, but these intelligentized degree is not high, which increases the working strength of the experimenters, improves the uncertainty of the test data and has high cost. The test efficiency is important to improve the reliability and accuracy of the test data. It is necessary to design a set of tread brake unit testing system with independent intellectual property right to improve the automation of the testing process.
Based on the working principle of the tread brake unit and the test project requirements of the tread brake unit, this project has developed and designed the test system test system for the tread brake unit. The test platform includes two parts of the test host and the operating console. The test host is divided into the bed and the electric cabinet, which is the main part of the performance testing of the tread brake unit. The tester controls the test host's performance test on the tread brake unit through the operation console.
In order to meet the functional requirements of the tread brake unit test system, production requirements, safety requirements, reliability requirements and multipurpose requirements, three motion degrees of freedom, two longitudinal motion and lateral motion of the mounting plate are set up in the design test rig. Two longitudinal motions are matched to realize the brake stroke test and the testing of the brake. The lateral movement of the mounting plate can satisfy the adjustment of the brake unit with different sizes. The test bench sets two independent gas supply routes, which can test the driving brake cylinder and the parking brake cylinder in one time, and improve the test production efficiency; the test pressure adjustment of the test bed is adjusted. The range is wide, it can meet the test test of various low pressure and high pressure brakes, the pressure regulation adopts the high precision proportional valve, the high precision pressure sensor and the control circuit composed of the closed loop pressure regulating loop, the pressure adjustment precision is high, the control part and the data acquisition system use the LabVIEW virtual instrument platform, through the computer to carry on the test. The operation of the process, data collection, analysis and processing and the printing of test reports improve the efficiency of the system test, and improve the test precision of the system with a high precision sensor; and the test platform sets multiple protection measures to ensure the safety of the operator and the safe and reliable operation of the test system, and reduce the failure of the system.
The tread brake unit test system can implement a number of performance tests for different type and specification tread brake units, including strength test, air tightness test, stroke test, adjustment test, manual relief test, and dynamic test. These tests only need the test personnel to pass through the operation control panel to greatly improve the test. The accuracy of the test data is guaranteed by the high precision sensor.

【學(xué)位授予單位】：南京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U270.35;U270.7

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本文編號(hào)：1891925