Motor train unit wheel hub diameter detection device and using method thereof

A technology for detection devices and EMUs, applied to electromagnetic measurement devices, electric/magnetic diameter measurement, etc., can solve problems such as inability to provide measurement results, achieve the effects of improving detection efficiency and detection accuracy, low cost, and simple and practical structure

Inactive Publication Date: 2015-12-30
CHANGCHUN RAILWAY VEHICLE FACILITIES
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Problems solved by technology

More importantly, this method of roughly evaluating the product error size by visually observing the degree of fit between the test sample and the product cannot provide accurate and quantitative measurement results, and cannot provide accurate and quantitative errors for the subsequent remedial process to eliminate errors For the technical problem of dimensional values, the present invention provides a wheel hub diameter detection device for EMUs and its use method

Method used

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  • Motor train unit wheel hub diameter detection device and using method thereof
  • Motor train unit wheel hub diameter detection device and using method thereof
  • Motor train unit wheel hub diameter detection device and using method thereof

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0047] like Figure 8 to Figure 12 As shown, the EMU wheel hub diameter detecting device of the present invention comprises a vernier ruler slideway 4, a vernier measuring end seat 5, a fixed measuring end seat 6, a first end face height positioning seat 7, a second end face height positioning seat 10, a A ball stud 8, a second ball stud 9 and four height calibration blocks 11, the fixed measuring end seat 6 is fixedly connected with the left end of the vernier ruler slideway 4, and the vernier measuring end seat 5 is set on the vernier ruler sliding outside of road 4 and can slide along it. Two groups of small screw holes 4-1 are respectively provided with two groups of small screw holes 4-1 on both sides of the middle section of the vernier ruler slideway 4, and each group of small screw holes includes two small screw holes, and the center line of the two ...

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Abstract

The invention discloses a motor train unit wheel hub diameter detection device and a using method thereof, and belongs to the field of rail vehicle hub diameter detection devices and detection methods. According to the hub diameter detection device, the diameter detection characteristics of a hub can be well adapted to, a preset height of two height positioning seats of the device can be set according to the axial height of the circular ring planes of the inner and outer end faces of the hub, an actual diameter value of the machined hub is accurately measured through an electronic vernier measurement end seat with a ball positioning point, and the detected diameter value is directly displayed on a digital liquid crystal display screen; the diameter detection efficiency of the localized hub of a motor train unit can be significantly improved, an accurate machining error can be obtained through subsequent calculation to supply an accurately quantified error value basis to a subsequent remediation procedure for eliminating the error, the detection efficiency and the detection precision can be significantly improved, maintenance and repair and periodic verification are convenient, and the advantages of being simple and practical in structure, convenient to operate, low in cost and the like are further achieved.

Description

technical field [0001] The invention belongs to the field of a detection device and a detection method for a wheel hub diameter of a rail vehicle, and in particular relates to a detection device for a wheel hub diameter of an EMU and a method for using the same. Background technique [0002] The M3C EMU wheels and T3C trailer wheels used in the CRH380 EMU were previously imported components, and their hub structures have high manufacturing precision and foreign testing methods. Today, the CRH380 series wheels can be produced in my country, but our country has not yet mastered the inspection methods of similar products abroad, so we can only follow the old domestic model inspection method based on the open-end model and the end-stop model to test the domestically produced new CRH380 EMU. Series of wheel and hub products undergo diameter quality inspection and acceptance. [0003] The main structure of the domestic new CRH380 EMU series wheel includes the rim 1 and the hub 2. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/12
Inventor 张乃夫徐维冯晓东朱喆于学智
Owner CHANGCHUN RAILWAY VEHICLE FACILITIES
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