Measuring method and instrument used for assembling and installing locomotive gear cases

Abstract

The invention relates to a measuring method and an instrument used for assembling and installing locomotive gear cases, which is characterized in that: the instrument comprises a reverse-U shaped bent pipe, one end of the reverse U-shaped bent pipe is connected with a magnetic stand, and the other end of the bent pipe is connected with a measuring steel loop; the bent pipe is arranged at the vertical end of one side of the measuring steel loop and also at the vertical end of one side of the magnetic stand, and the two vertical ends are on the same plane; a connector can be arranged at the joint part of the bent pipe and the magnetic stand, one end of the connector is screwed in the screw thread of the magnetic stand, the other end is welded after inserting into the bent pipe; another connector can also be arranged at the joint part of the bent pipe and the measuring steel loop; the two ends of the connector are welded after respectively inserting into the bent pipe and the measuring steel loop. The invention completely satisfies the design requirement, has easy operation, accurate and reliable measuring values, can be applied to the assembling and installation process of the DF4 locomotive gear case and can also be widely applied to the assembling and installation processes of other types of locomotive gear cases.

Description

technical field [0001] The invention relates to a measuring method and a tool, in particular to a measuring method and a tool for assembling a locomotive gearbox. Background technique [0002] During the assembly process of the gearbox, it is first required that the middle plane of the gearbox is perpendicular to the axis of the wheel shaft, so as to ensure that there is a minimum clearance between the inner side of the gearbox and the gears, and thus to ensure that the locomotive can be avoided due to gears and gears during turning. The contact of the gearbox will cause damage to the gearbox and failure of the gears, resulting in a serious accident. In the actual locomotive assembly process, the gearbox is fixed on the motor by four connecting bolts. Due to the structure of the gearbox and the motor, the four planes where the gearbox contacts the motor are not in the same plane, so when assembling the gearbox, it is necessary to Add adjustment pads to ensure that the middl...

AI Technical Summary

Problems solved by technology

This often leads to the failure to ensure that the middle plane of the gearbox is perpendicular to the axle axis after assembly, and under the action of the tightening force of the connecting bolts, not only the gap between the inner side of the gearbox and the side of the gear cannot be guaranteed, but also the side of the gearbox is affected. The uneven force will cause deformation stress on the inner surface of the gearbox, which will seriously affect the service life of the gearbox and endanger the driving safety.

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