Vernier calipers for rail cross-section size detection
A vernier caliper and size detection technology, applied in the field of vernier calipers, can solve problems such as the measurement of rail cross-section dimensions, and achieve the effects of small impact, easy calibration, and unified measurement benchmarks
Active Publication Date: 2017-05-31
CHINA RAILWAY BAOQIAO (NANJING) CO LTD
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Problems solved by technology
[0011] In order to solve the problem of rail section size measurement, the multifunctional rail section size detection vernier caliper needs to pay attention to the following issues during the design process:
Method used
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Embodiment 1
[0033] Such as figure 2 As shown, the vernier caliper used for rail section size detection is composed of two main scales; the height main scale 1 measures the height, and the depth main scale 2 measures the depth; the height main scale 1 and the depth main scale 2 are connected by the auxiliary scale of the two main scales , two pairs of chi constitute the support 4 of the vernier caliper at the same time, and the two pairs of chi are relatively fixed at a certain angle.
[0034] A polygonal measuring sheet 3 is fixed by screws on the depth main scale 2, and the measuring sheet 3 has different shapes according to the cross section of the rail section.
[0035] Each side of the measuring piece 3 has a different inclination, the measuring piece 3 can rotate around the depth main ruler 2 to convert different inclined sides for measurement, the measuring piece is provided with positioning holes, and the depth main ruler 2 is provided with positioning pins to realize the measurem...
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The invention discloses a vernier caliper for dimension measurement of a rail profile. The vernier caliper comprises a base (6), a benchmark claw (7) and a measuring main scale, and also a measuring piece (3) and a support (4); the measuring main scale of the vernier caliper is composed of a height main scale (1) and a depth main scale (2); the height main scale (1) is connected with the depth main scale (2) by virtue of the support (4); the measuring piece (3) is connected to the depth main scale (2). The vernier caliper for the dimension measurement of the rail profile has the advantages that the railhead inclinations of different profiles of different steel rail pieces can be detected by using the vernier caliper instead of previous sample plates, so that the management cost of lots of sample plates is saved and easy verification can be realized, and the width of a rail limb of a steel rail and the width of a railhead of the steel rail can be detected by using the vernier caliper instead of a previous tooth vernier and a common vernier caliper. The vernier caliper is unified in measurement reference and seldom affected by manual measurement skills, and is high in detection accuracy.
Description
technical field [0001] The invention relates to a measuring tool for rail size, in particular to a vernier caliper for measuring the cross-sectional size of the rail. Background technique [0002] Rail section size includes rail head width, rail head slope, rail leg width, etc., such as figure 1 As shown, the surface to be measured 1, the surface to be measured 2 and the surface to be measured 3, the detection data of the surface to be measured 1 and the surface to be measured 2 measure the width of the rail head, and the surface to be measured 1 and the surface to be measured 2 measure the rail head The inclination, the data detected by the surface to be measured 3, determine the width of the rail limb. In the existing measurement, the width of the rail leg is measured by an ordinary vernier caliper, the width of the rail head is measured by a tooth thickness caliper, and the slope of the rail head is measured by a template. [0003] In the prior art, the following techni...
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IPC IPC(8): G01B3/18
Inventor 林军科冯毅李超娜吴钟敏赵小军
Owner CHINA RAILWAY BAOQIAO (NANJING) CO LTD