Non-roundness measurement device for vehicular wheels of railway vehicles
A railway vehicle and roundness measurement technology, which is applied in the direction of rim measurement/measurement, can solve the problems of complex operation, less measuring equipment, and accuracy cannot be guaranteed, and achieve the effects of high measurement accuracy, simple operation, and simple structure
Inactive Publication Date: 2012-07-18
TONGJI UNIV
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Problems solved by technology
Although there are many kinds of wheel tread profile measurement systems at present, there are few domestic measurement devices that can accurately record the wheel circumference profile and the mechanism is relatively complicated.
Domestic wheel out-of-roundness is generally measured with a non-falling wheel turning machine, which is complicated, time-consuming, laborious, and the accuracy cannot be guaranteed, so there is an urgent need to develop a light-weight and easy-to-operate vehicle-mounted wheel out-of-roundness testing equipment
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[0029] Please refer to the accompanying drawings for a further description of the present invention.
[0030] Such as figure 1 , figure 2 with image 3 As shown, the present invention provides a vehicle-mounted wheel out-of-roundness measuring device for railway vehicles, comprising a bracket 1, a measuring mechanism, a wheel, a fixed locking mechanism and a lateral positioning seat 9, and the bracket 1 is composed of two left and right brackets through the lateral The separation column 20 is combined into one, and the positioning and running mechanism composed of a measuring mechanism and small rollers 25 is installed on the support 1. The upper part of the support 1 is a fixed locking mechanism, and the two sides of the support 1 are fixedly connected with transverse positioning seats 9 respectively. There is a machine in the support 1. box of 24.
[0031] The measuring mechanism includes a first roller 17, a rotary first encoder 22, a rotary second encoder 23 and a conn...
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The invention discloses a non-roundness measurement device for vehicular wheels of railway vehicles, which comprises a support, a measurement mechanism, wheels, a fixed locking mechanism and transverse positioning seats. The support consists of a left support unit and a right support unit which are integrated through transverse partition columns, a positioning running mechanism consisting of a measurement mechanism and small wheels is mounted on the support, the fixed locking mechanism is arranged on the upper portion of the support, the transverse positioning seats are fixedly connected on two sides of the support, a machine box is arranged in the support, and a data acquiring card is arranged in the machine box. Non-roundness amplitude value of the wheels is reflected by the aid of the small wheels fluctuating vertically, and then is subjected to value conversion by rotary encoders, and accordingly non-roundness of the wheels can be measured. The non-roundness measurement device has the advantages that non-roundness degree of the wheels can be recorded accurately, provides data support for needs of wheel detection, and signals can be output through interfaces and non-roundness value can be displayed after data processing. Besides, the non-roundness measurement device is simple in operation, high in measuring accuracy, simple in structure and light in weight.
Description
technical field [0001] The invention relates to the field of railway vehicle wheel detection, in particular to a vehicle-mounted wheel out-of-roundness measuring device. Background technique [0002] The out-of-roundness of the wheels of railway vehicles will affect the running safety of the train, bring additional vibration, noise and impact to the vehicle, and will also reduce the critical speed of the rolling stock, making the dynamic performance, stability and comfort of the vehicle worse. Regardless of urban rail transit, low-floor trains or high-speed trains, as passengers have higher and higher requirements for comfort, it is urgent to ensure the smoothness and comfort of train operation, so a measuring device that can accurately detect wheel out-of-roundness is needed . Although there are many wheel tread shape measurement systems, there are few measuring devices in China that can accurately record the wheel contour, and the mechanism is relatively complicated. Do...
Claims
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Inventor 沈钢王捷
Owner TONGJI UNIV