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Combined track wheel and cooling device

A cooling device and track wheel technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve problems such as mechanical wear, reduce measurement errors, reduce arc length, and reduce corresponding angles Effect

Active Publication Date: 2015-12-09
CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it is braked by friction with the rail, so there is mechanical wear

Method used

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] Below in conjunction with accompanying drawing this patent is further described.

[0022] Such as figure 1 Shown, track wheel of the present invention mainly is made up of disc track 1, bolt 2, bolt 3, washer 4, lock washer 5, wheel body (wheel core) 6, key 7 and bearing pin 8 etc. Each group of disc tracks is composed of 2 to 4 fan-shaped tracks, which are connected as a whole by bolts 2 and pin shafts 8 . The disc track combined with two petals is t...

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Abstract

The invention provides a combined track wheel. The wheel comprises a wheel body and at least two disc type tracks, wherein the disc type tracks are fixedly connected to the wheel body via keys and bolts. The track device employs a split combination structure, each disk-type track is composed of 2 to 4 lob units, the lob units are integrated via pins and bolts; and thus, when the steel track can be replaced onsite after being worn such as in a magnetic track braking test, the availability of a tester is improved, and the maintenance cost is reduced. The combined track wheel is suitable for eddy current braking or magnetic track braking tester of rail vehicles, and especially suitable for 1:1 eddy current braking or magnetic rail braking test of high speed trains. The invention also provides a cooling device which is used in cooperation with the track wheel. The cooling device comprises a C-shaped or U-shaped jet pipe, a water inlet pipeline, a connection flange, a tee joint and a flow control and measurement part; and spray orifices are uniformly distributed in the side, facing the track, of the jet pipe. Water or other liquid coolant can serve as a cooling medium, the flow can be controlled automatically, and circulation use of liquid can be realized. The cooling device is suitable for high-speed eddy current braking test, and when the cooling device is used in cooperation with the track, the test speed can reach 500km / h or higher.

Description

technical field [0001] The invention relates to a combined track wheel and a cooling device thereof, in particular to a combined track wheel with a double-track structure and a cooling device for matching use. Background technique [0002] The track wheel is one of the key core components of the linear (track) eddy current brake test bench and the magnetic rail brake test bench. It interacts with the brake electromagnet for testing to generate braking force, convert the braking energy into heat and Dispersion, to achieve deceleration and braking. [0003] Generally, the track wheel structure of the eddy current or magnetic rail brake test bench is simple, usually has a disc-shaped track, and adopts an integrated structure, such as the eddy current brake test bench disclosed in Chinese patents CN2415359Y (2001) and CN100395131C (2008) , and similar test benches abroad. This kind of rail wheel can realize the energy conversion of eddy current braking under certain conditions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/08G01L5/28
Inventor 丁福焰李和平余欲为
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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