Pre-assembling device for wheel-mounted brake disc of motor train unit

Abstract

A pre-assembling device for a wheel-mounted brake disc of a motor train unit is characterized in that the pre-assembling device comprises a support platform, a bearing mechanism and a mandrel mechanism, the support platform comprises a horizontal base, a vertical support and an anti-collision base plate, and the mandrel mechanism comprises a center shaft, an inner sleeve and an outer sleeve. Operation convenience is provided for mounting other wheel accessories on the front end face of a hub and mounting a plurality of bolts on the wheel-mounted brake disc, and the problem that an existing storage rack shields and interferes with a wheel mechanism A in the mounting process is solved. By means of the cone angle parameter design of the sleeve with the cone outer side wall, the wheel mechanism A can slide to the end where an annular baffle is located through the self weight, so that the wheel mechanism A is prevented from slipping off the sleeve, and the slipping risk of the wheel mechanism A is further reduced through a disengaging stop ring located at the front end of the mandrel mechanism B. The anti-collision base plate and the outer sleeve are both made of nylon materials, and collision and scratching of the wheel mechanism A in the assembling process are effectively reduced.

Description

technical field [0001] The invention belongs to the field of pre-assembly auxiliary devices for wheel-mounted brake discs of motor trains, and in particular relates to a pre-assembly device for brake discs of motor-car groups. Background technique [0002] Such as figure 1 As mentioned above, the wheel mechanism A of the high-speed EMU includes a wheel hub 1, a wheel-mounted brake disc 2, a hub center tube 3 and other wheel accessories, and the wheel-mounted brake disc 2 is coaxially fixed on the axially outer end of the wheel hub 1. , and block other accessory parts inside the accessory part installation groove on the outer end surface of the hub 1; out; the inner diameter of the hub central tube 3 is R1, and its axial length is L. [0003] Such as figure 2 As shown, the storage rack 4 for storing a plurality of wheel mechanisms includes an outer frame 4-1 and multiple pairs of spacer columns 4-2, and two sets of spacer columns 4-2 adjacent to the wheel mechanism A join...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing storage rack cannot make the wheel mechanism rotate freely, and its outer frame and multiple sets of spacer columns will also hinder the installation and acceptance of the brake disc, resulting in limited operating space, cumbersome assembly process, low efficiency, and It is easy to cause damage such as bumps and scratches to the wheel-mounted brake disc or the wheel hub, and the operator cannot guarantee the technical problem of the quality and safety of the assembly operation. The invention provides a wheel-mounted brake disc pre-assembly device for EMUs.

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