Portable wheel diameter measuring device and measuring method
A diameter measurement, portable technology, applied in the field of geometric measurement, can solve problems such as measurement error
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Embodiment approach 1
[0037] Such as Figure 1~3 As shown, a portable wheel diameter measuring device includes: a housing 1, a display unit and a data processing unit arranged in the housing 1, a battery, a positioning unit, a one-dimensional translation mechanism 4, a one-dimensional positioning sensor 3 and a one-dimensional measurement Proximity sensor 2;
[0038] in:
[0039] The one-dimensional ranging sensor 2 is installed on the one-dimensional translation mechanism 4, and the one-dimensional translation mechanism 4 can be translated in a straight line to drive the one-dimensional ranging sensor 2 to move in a straight line and to measure the rolling circle. The distance between the last arc 9 and the one-dimensional translation mechanism 4;
[0040] The positioning unit is used to locate the device on the circumferential surface of the measured wheel 8 so that the measuring point of the one-dimensional ranging sensor 2 is located on an arc 9 on the rolling circle and the maximum of the on...
Embodiment approach 2
[0055] Such as Figure 1~3 As shown, a portable wheel diameter measuring device of this embodiment is the same as Embodiment 1.
[0056] The portable wheel diameter measurement method of this embodiment comprises the following steps:
[0057] Step 1, installation: the portable wheel diameter measuring device is fixed on the measured wheel 8 through the positioning unit;
[0058] Step 2, scanning measurement: the one-dimensional translation mechanism 4 drives the one-dimensional distance measuring sensor 2 to move. The distance between the mechanisms 4 is measured by the one-dimensional positioning sensor 3 to obtain the position of the translation mechanism 4, and the data of the two sensors correspond one by one to form the contour data of an arc 9 on the rolling circle;
[0059] Step 3, fit the circle to calculate the diameter: such as Figure 5 As shown, according to the arc profile data, the least square method is used to fit the equation of the rolling circle, so as to...
Embodiment approach 3
[0061] Such as Figure 7-8 As shown, a portable wheel diameter measuring device includes a housing 1, a display unit and a data processing unit, a battery, a positioning unit and a two-dimensional laser sensor 7 arranged in the housing 1;
[0062] in:
[0063] The housing, data processing unit, display unit, battery, and positioning unit are the same as those in Embodiment 1;
[0064] The two-dimensional laser sensor 7 directly measures the contour data of an arc at a distance of 70 mm from the inner surface of the wheel.
[0065] Next, the method of using the above-mentioned portable wheel diameter measuring device to realize the direct offline measurement of the wheel is introduced, including the following steps:
[0066] Step 1, installation: the portable wheel diameter measuring device is fixed on the measured wheel 8 through the positioning unit;
[0067] Step 2, measurement: obtain the contour data of a section of arc 9 at a distance of 70 mm from the inner surface of...
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