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DC traction motor capable of measuring speed for narrow gage locomotive

A narrow-gauge locomotive, DC traction technology, applied in the direction of electromechanical devices, electric components, electrical components, etc., can solve the problems of unable to measure the speed value, unable to install speed sensors, etc., to achieve weight reduction, unique structure, cost saving. Effect

Inactive Publication Date: 2009-06-03
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the current DC traction motor for narrow-gauge locomotives cannot be equipped with a speed measuring sensor, and thus the speed value cannot be measured from the DC traction motor for narrow-gauge locomotives, the present invention provides a speed-measuring DC traction motor for narrow-gauge locomotives. electric motor

Method used

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  • DC traction motor capable of measuring speed for narrow gage locomotive
  • DC traction motor capable of measuring speed for narrow gage locomotive
  • DC traction motor capable of measuring speed for narrow gage locomotive

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Embodiment Construction

[0015] A DC traction motor for a narrow-gauge locomotive that can measure speed, including a base 1, an inner end cover 2 fixed to the base at the commutator end of the base, a bearing cover 3 fixed to the inner end cover, and a bearing cover between the bearing cover and the bearing The shaft head pressure plate 4; the bearing cover 3 is an integral disc structure (flat cylinder shape), and its inner end surface is opened (processed) with a counterbore 5 for the installation space of the speed measuring gear; a bearing cover is milled on the cylindrical surface Plane 6, on which there is a speed measuring hole 7 communicating with the counterbore on the inner side of the bearing cover and a screw hole 8 for fixing the speed sensor; a flange at the connection between the inner end cover and the machine base is milled with a bearing The groove 9 opposite to the milled plane on the cover, the speed sensor is placed in the groove, the speed sensor is aligned with the speed hole on...

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Abstract

The invention relates to a kind of DC-drive motor used in DC-drive Narrow-gauge Locomotive for speed testing, which solves the problem that a speed sensor can not be installed on the existing DC-drive Narrow-gauge Locomotive. The motor contains a seat, an inner end cap on the commutator connecting to the seat, a bearing cap connected with the inner end cap, an end plate between the bearing cap and the bearing. The bearing cap is in a whole disc structure, its inner end has a counter bore for installing the speed sensor, and a plane is milled on its cylindrical end, and the plane has a hole of speed-sense open to the counter bore and TAPs for fixing the speed sensor. A groove is milled on the flange for installing the speed sensor at the junction of the inner end cap and the seat, which is facing to the plane on the bearing cap. The end plate is changed to a Dentate Disc structure.

Description

technical field [0001] The invention relates to a DC motor, in particular to a DC traction motor for a narrow-gauge locomotive, in particular to a DC traction motor for a narrow-gauge locomotive that can measure speed. Background technique [0002] The locomotive uses a DC traction motor to drive the locomotive wheels to the shaft through the rotation of the rotor. In order to ensure the accurate speed of the locomotive, it is generally necessary to install a speed sensor at the commutator end of the motor to measure the speed, which is easy to achieve for standard-gauge and wide-gauge motors. With the development of scientific and technological progress, narrow-gauge locomotives need to directly measure the speed value from the motor, and because the narrow-gauge traction motor is limited by the space position, the bearing cap is too thin (the motor commutator end bearing cap of the narrow-gauge locomotive mainly serves as a seal Bearing effect), can't install speed measur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/00H02K5/16H02K11/21
Inventor 苟军善李彩霞张尔华陈洪旭
Owner CRRC YONGJI ELECTRIC CO LTD
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