RU2777696C1 - Device for measuring geometric parameters of box-section wheel centers - Google Patents

Abstract

FIELD: measuring technology.

SUBSTANCE: invention relates to measuring devices, intended primarily for measuring the thickness of spokes and lintels of box-section wheel centers of railway rolling stock. The device for measuring the geometric parameters of the box-section wheel centers includes a bracket connected to a ruler on which horizontal scales are applied on both sides to measure the thickness of the spokes of the box-section wheel center with an upper measurement limit of 80 mm and to measure the thickness of the lintel of the box-section wheel center with an upper measurement limit of 55 mm, a movable frame, made with the possibility of moving along a ruler and having a scale with a scale division of 0.1 mm on both sides, a rotary rod located on a movable frame, to ensure that the measuring device goes behind the spoke of the box-section wheel center and measures the thickness of the lintel, a retractable rod that makes it possible to change the measuring range of the device from 0 to 80 mm and from 0 to 55 mm, and three mounting screws located on the ruler, bracket and movable frame.

EFFECT: reduction in labor intensity when performing visual and measuring control.

1 cl, 3 dwg

Description

FIELD OF TECHNOLOGY

The invention relates to measuring instruments, intended primarily for measuring the thickness of the spokes and lintels of the box-section wheel centers of railway rolling stock. The device for measuring the geometric parameters of box-section wheel centers includes (Fig. 1) a bracket 1, a ruler 2, a rotary rod 3, a retractable rod 4, a movable frame 5, three fixing screws 6. A horizontal scale is applied on both sides of the ruler to perform measurements thickness of the spokes of the box-section wheel center with an upper measurement limit of 80 mm and a scale for measuring the thickness of the web of the box-section wheel center with an upper measurement limit of 55 mm. The movable frame 5 on both sides has a scale with a division value of 0.1 mm. Retractable rod 4 allows you to change the measurement range of the device from 0 to 80 mm for measuring the thickness of the wheel center spoke (Fig. 2) and from 0 to 55 mm for measuring the thickness of the wheel center web (Fig. 3). The rotary rod 3 ensures that the measuring device enters the spoke of the box-section wheel center to measure the web.

On the measuring scale, the tolerance range of the geometrical parameters of the box section wheel center is marked. The technical result of the proposed invention is the measurement of the thickness of the spokes and jumpers of the wheel centers of the box section of the rolling stock, the reduction of labor intensity when performing visual-measuring control.

PRIOR ART

A well-known similar measuring device is a micrometer (see 2011117769 dated 10/10/2012), which includes a bracket, a heel, a stopper, a micrometer screw, a drum stem, at the right end of which a ratchet is located. The disadvantage of micrometers is that using it to measure the thickness of the webs of box-section wheel centers due to the design features of the wheel centers, the complexity of measuring the thickness of the spokes.

A well-known similar measuring device is a caliper (see 2019127358 dated 05/29/2020), designed to measure the external and internal dimensions of parts such as "shaft" or "hole", as well as the external and internal dimensions of parts of a different shape, consisting of a rod with a main scale, a frame with a vernier scale mounted with the possibility of movement along the bar, two jaws and a device for fine setting the frame. The disadvantage of the caliper is that its use for measuring the thickness of the webs of the box-shaped wheel centers due to the design features of the wheel centers.

A well-known similar measuring device is a caliper (see 2009105354 dated 07/10/2009) for measuring the dimensions of butt welds, as well as other measurements of linear dimensions, consisting of a rod, a frame moving along the rod, a measuring jaw, a clamping screw. The disadvantage of this invention is the inability to measure dimensions in the plane of the caliper in a direction perpendicular to the direction of the rod and measure the thickness of the jumpers and the thickness of the spokes of the box-section wheel centers due to the design features of the wheel centers.

A well-known similar measuring device is a marking caliper (see 2017120932 dated 12/11/2017), consisting of a sponge with edge measuring surfaces for measuring both internal and external dimensions due to the fact that the measuring surfaces of the jaws are the surfaces of plates that are attached to the jaws by means of soldering, where one of the ends of the plate is sharpened on one side. The disadvantage of this marking caliper is that it is used to measure the thickness of the jumpers of box-section wheel centers due to the design features of the wheel centers.

Literature

1. Russian patent No. 2009105354. Caliper for measuring the dimensions of butt welds [Text] / S.N. Vlasov, A.I. Krivtsov, OAO Vogograndneftemash. Published 07/10/2009;

2. Patent of Russia No. 2019127358. Caliper [Text] / Yu.N. Dobrokhotov, A.E. Makushev, Yu.V. Ivanshchikov, N.N. Pushkarenko, Chuvash State Agricultural Academy. Published 05/29/2020;

3. Russian patent No. 2017120932. Marking caliper [Text] / A.E. Babichev, Krasny Toolmaker JSC. Published 12/11/2017.

4. Russian patent No. 2011117769. Micrometer [Text] / Yu.V. Ivanshchikov, Yu.N. Dobrokhotov, Chuvash State Agricultural Academy. Published 10.10.2012.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is illustrated by the following figures.

Fig. 1 - General view of the device for measuring the geometric parameters of the wheel centers of the box section;

Fig. 2 - Method for measuring the thickness of the spokes of the box-section wheel center with a measuring device;

Fig. 3 - Method for measuring the thickness of the web of the box-section wheel center with a measuring device.

Claims (1)

A device for measuring the geometric parameters of box-section wheel centers, including a bracket connected to a ruler on which horizontal scales are applied on both sides to measure the thickness of the spoke of the box-section wheel center with an upper measurement limit of 80 mm and to measure the thickness of the web of the box-section wheel center section with an upper measurement limit of 55 mm, a movable frame made with the possibility of moving along a ruler and having a scale with a division value of 0.1 mm on both sides, a rotary rod located on the movable frame to ensure that the measuring device enters the spoke of the box-shaped wheel center and measuring the thickness of the jumper, a retractable stem that allows you to change the measurement range of the device from 0 to 80 mm and from 0 to 55 mm, and three fixing screws located on the ruler, bracket and movable frame.

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