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Axle box body inner hole bearing area detection measuring tool

A technology of bearing area and axle box, applied in the field of measurement, can solve the problems of large measurement error, low efficiency, and failure to meet the distance size requirements, etc., and achieve the effect of small measurement error, high efficiency, and uniform force

Active Publication Date: 2019-10-15
柳州科路测量仪器有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a measuring tool for measuring the load-bearing area of ​​the inner hole of the axle box. Questions about the distance dimension requirements between the end faces of the seat

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  • Axle box body inner hole bearing area detection measuring tool
  • Axle box body inner hole bearing area detection measuring tool
  • Axle box body inner hole bearing area detection measuring tool

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0025] Figure 2 to Figure 6 The test measuring tool for bearing area in the inner hole of the axle box includes a circular positioning sleeve 1 used to support the positioning block 3, which is inserted into the center hole of the inner hole of the axle box for positioning during measurement, such as Figure 7 As shown, three openings are evenly distributed on the circumferential side of the positioning sleeve 1, and the positioning sleeve 1 is set outside the circular rotating sleeve 2 through the rotating shaft 4; Figure 8 As shown, three arc-shaped grooves 2-1 are evenly distributed on the three opening positions of the rotating sleeve 2 corresponding to the circumferential side of the positioning sleeve 1; the positioning block 3 is placed at the arc-shaped groove corresponding to the opening of the positioning sleeve 1, as Figure 9 and Figure 10 As show...

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Abstract

The invention discloses an axle box body inner hole bearing area detection measuring tool and relates to the measuring technology field. The measuring tool includes a positioning sleeve connected to an external portion of a rotation sleeve through a rotation shaft. A circumferential side surface of the positioning sleeve is uniformly provided with three openings, and an arc-shaped groove is arranged at a position, corresponding to the three openings, of the rotation sleeve. A positioning block is installed at the arc-shaped groove, and one end of the positioning block is stretched out of the openings. When the positioning sleeve and the rotation sleeve are rotated relatively, the positioning block is driven to move outwardly to be in contact with an inner hole wall of a workpiece so as torealize positioning of a hole center. A chassis of a bottom end of the rotation shaft is fixedly connected with the rotation sleeve, and the top end of the rotation shaft is connected with a corrugated handle. A ruler body sleeve is arranged between the corrugated handle and a top surface of the positioning sleeve, the ruler body sleeve is fixedly connected with one end of a ruler body, and the other end of the ruler body is provided with a ruler frame. The ruler frame is provided with a digital display meter for measuring the workpiece. By using an existing detection measuring tool, a measuring error is large, efficiency is low, and a detection accuracy requirement of a distance between an axle box body inner hole center and a pull rod seat end surface can not be satisfied. In the invention, the above problems can be solved.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a special measuring tool for measuring the distance from the center of the inner hole of a locomotive axle box to the end face of a tie rod seat. Background technique [0002] In the production process of the locomotive axle box, it is required to measure the distance between the center of the inner hole of the axle box and the end face of the tie rod seat, such as figure 1 As shown, there is a shaft box inner hole center diameter of Φ270mm, and the distance between the shaft box inner hole center and the end face of the tie rod seat is required to be 265±0.1mm; due to the high precision requirements of the product, the measuring tool should meet the measurement accuracy when measuring. And the repeated measurement error is between 1 / 5-1 / 3 of the workpiece tolerance. Existing measuring tools not only have large measurement errors, but also have low efficiency, which are far ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/14
CPCG01B5/0002G01B5/0025G01B5/14
Inventor 王作华徐家海
Owner 柳州科路测量仪器有限责任公司
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