RU110670U1 - PORTAL TYPE STAND FOR ASSEMBLING A LOCOMOTIVE WHEEL AND ENGINE BLOCK - Google Patents

Abstract

 A portal type bench for assembling a locomotive wheel-motor unit, consisting of a movable portal metal structure, including two platforms connected by two U-shaped beams, one of which has a wrench mounted on a trolley that can move along the U-shaped beam, and two grips for axleboxes (caps) of motor-axial bearings, while on the platforms there are two hydraulic jacks, two devices for mechanized grinding of small gears to the cone of the armature shaft of the traction electrodes igitel, two hoists of small gears, two induction heaters and two clamps of the wheelset, in addition, the stand includes a tilter of the wheel-motor block, an auxiliary installation area for the wheelset, a rack for axle boxes (caps) of motor-axial bearings, characterized in that added an electric hoist placed on another U-shaped beam, and a pneumatic wrench for setting the casings of the traction gear transmission, and a source of reduced DC voltage for scrolling the wheel-motor block after a failure ki.

Description

The utility model relates to the field of production and repair of locomotives, namely to non-standard technological equipment for disassembling and assembling wheel-motor blocks of locomotives.

Closest to the claimed stand is an assembly module that includes a movable portal metal structure made in the form of a U-shaped beam and equipped with a lifting device that is mounted on two symmetrical platforms with individual movement mechanisms, consisting of a hydraulic motor connected to the gearbox, on the upper part of the portal metal structure a trolley is mounted on which a wrench with a worm gear is fixed, through the wheel of which a spline shaft with a socket wrench head is passed, and cylinder for installing caps with two output rods, a mechanism is mounted on the end of one rod fixing the cap on a paw fixed to the end of the second rod, in addition, the assembly module additionally contains a support for the wheelset in the form of a lodgement with a service platform (Pat. No. 32022 to useful model (RF), IPC В23Р 19/06 Assembly module / Skripnikov AA, Shulga AA, Zakharov AP (RF) - No. 2002135417/20; Declared 12.26.2002; Published 10.09. 2003. Bull. No. 25).

The disadvantages of the known assembly module include the low level of mechanization of technological operations for the installation of casings of the traction gear transmission and grinding of small gears on the shaft of the traction engine; top power supply, which makes it difficult to choose a place in the workshop for mounting the assembly module; heating of small gears before landing on the shaft of the traction motor is carried out separately from the assembly module, which leads to the need to transfer gears manually heated to a high temperature; insufficient rigidity of the portal metalwork, which reduces the build quality; the inability to scroll the wheel-motor block at idle after assembly.

The disadvantages considered are devoid of the proposed portal-type stand for assembling the locomotive wheel-motor unit.

The purpose of the utility model is to increase the level of mechanization and assembly quality of wheel-motor blocks of locomotives, reducing the time of assembly operations.

This goal is achieved by the fact that, in contrast to the known assembly module in the proposed stand of the portal type for assembling the wheel-motor block of the locomotive, the grinding of small gears onto the shaft of the traction motor is mechanized; heating of small gears is carried out on a bench type bench on special mechanisms for feeding small gears after heating to the working area for a nozzle on the shaft of the traction motor; electric hoist on a special cantilever beam and a pneumatic wrench are provided for mechanizing the setting of traction gear casing; a power supply was applied to the portal module of the trench type, which allows you to place the assembly position of the wheel-motor blocks in any part of the workshop;

portal metal construction consists of two U-shaped beams, which significantly increased its rigidity and build quality; the equipment of the stand includes clamps for the wheelset and a source of reduced DC voltage for scrolling the wheel-motor block after assembly.

Figure 1 and figure 2 presents a diagram of the stand of the portal type for assembling the wheel-motor block of the locomotive.

The portal-type stand for assembling the locomotive wheel-motor unit includes a movable portal metal structure 1, consisting of two platforms 2, interconnected by two U-shaped beams 3 (flange connection). On the rear U-shaped beam 3, a cantilever beam 4 is mounted on top of the racks, along which the electric hoist 5 moves, and on the front beam 3, a wrench 6 is installed, which is a worm gear motor with an electric drive, a movable shaft with an allen key is passed through the worm wheel The wrench shaft is located vertically. The wrench 6 is mounted on a trolley that can move along the U-shaped beam 3. Raising and lowering the wrench is carried out by a handle, which is connected to the shaft by a system of levers. On the front beam 3, there are also two grips 7 for installing and fixing the axleboxes (caps) of motor-axial bearings. On platforms 2, two hydraulic jacks 8 are installed for lifting and installing a pair of wheels. In addition, the movable portal metal structure 1 is equipped with additional attachments consisting of two devices 9 for mechanized grinding of small gears to the cone of the armature of the traction electric motor, two hoists 10 of small gears after heating, two induction heaters 11 of small gears and two clamps of 12 wheelset for scrolling wheel-motor block. In addition, the gantry type stand for assembling the locomotive wheel-motor block includes a wheel-motor block tilter 13, an auxiliary mounting platform 14 for a pair of wheels, a rack for axleboxes (caps) of motor-axial bearings 15 and a pneumatic wrench 16.

Work on a stationary module for repairing a locomotive wheel-motor unit is performed by one person as follows.

Using a workshop crane, the traction motor is mounted on the tilter of the wheel-motor unit 13, and the wheelset is mounted on the auxiliary mounting platform 14. The traction motor is rotated upward on the tilter 13 by the motor axial throats. Wrench 6 unscrews the mounting bolts of the axle boxes (caps) of the motor-axial bearings, with special grips 7 axle boxes (caps) are removed from the engine and mounted on the rack 15. The engine anchor is installed in the middle position. Small gears are installed on the armature shaft of the traction motor and the grinding of both gears to the cone of the armature shaft is sequentially performed using special devices for mechanized lapping 9. After lapping, one small gear is installed on the lift of small gear 10 and is heated to a predetermined temperature by induction heater 11. Heated small gear from the lift 10 is mounted on the shaft of the anchor of the traction motor. The second small gear is mounted on the shaft of the armature of the traction motor in the free position. Motor axle bearing shells are installed in the motor-axial neck of the traction motor. Then, with the help of hydraulic jacks 8, the wheelset is installed in the motor-axial bearings and gears and small gears of the traction gear reducers are engaged. The position of the second free small gear on the shaft of the armature of the traction motor is marked with special marks. Hydraulic jacks 8 rises a pair of wheels. The second small gear is mounted on the hoist of the small gear 10 and is heated to a predetermined temperature by the induction heater 11, and then it is mounted according to the marks on the armature shaft of the traction motor similarly to the first. A wheel pair of hydraulic jacks 8 is installed in the motor-axial bearings and the second halves of the motor-axial bearings are placed. Special grips 7 axle boxes (caps) of motor-axial bearings are removed from the rack 15 and they are planted in the skeleton of the traction motor. Wrench 6 bolts securing the axle box (caps) of motor-axial bearings. Using an electric hoist 5 and a pneumatic wrench 16, the casings of the traction gear transmission are mounted on the traction electric motor. Tilter 13 wheel-motor unit is rotated to a horizontal position of the axle boxes (caps) of the motor-axial bearings of the traction motor. In the axle boxes (caps), special braids of yarn are laid, the axle boxes (caps) and the casings of the traction gear are filled with grease. Wheel pairs are fixed by the tilter 13 at a fixed pax 12. After that, the wheel-motor unit is connected to a power source and it is rotated in reverse mode according to the repair process.

The proposed portal-type stand for assembling a locomotive wheel-motor unit has significant advantages compared to non-standard technological equipment of a similar purpose. Lapping of small gears on the shaft of the traction motor is mechanized. The heating of small gears is carried out at the portal type bench on special mechanisms for feeding small gears after heating to the working area for the nozzle on the shaft of the traction motor, which reduces the nozzle execution time. Electric hoists are provided on a special cantilever beam and a pneumatic wrench for mechanizing the setting of traction gear housing. A power supply was applied to the portal module of the trench type, which allows you to place the assembly position of the wheel-motor blocks in any part of the workshop. Portal metalwork consists of two U-shaped beams, which significantly increased its rigidity and accuracy of assembly. The equipment of the stand includes clamps for the wheelset and a source of reduced DC voltage for scrolling the wheel-motor unit after assembly.

When choosing the design of a portal-type stand for assembling a locomotive wheel-motor unit, the developer was guided by the simplicity of technical solutions, their reliability and maintainability.

The design is universal and with minimal changes can be used for any wheel-motor blocks with axial support of the traction motor.

Claims (1)

A portal type bench for assembling a locomotive wheel-motor unit, consisting of a movable portal metal structure, including two platforms connected by two U-shaped beams, one of which has a wrench mounted on a trolley that can move along the U-shaped beam, and two grips for axleboxes (caps) of motor-axial bearings, while on the platforms there are two hydraulic jacks, two devices for mechanized grinding of small gears to the cone of the armature shaft of the traction electrodes igitel, two hoists of small gears, two induction heaters and two clamps of the wheelset, in addition, the stand includes a tilter of the wheel-motor block, an auxiliary installation area for the wheelset, a rack for axle boxes (caps) of motor-axial bearings, characterized in that added an electric hoist placed on another U-shaped beam, and a pneumatic wrench for setting the casings of the traction gear transmission, and a source of reduced DC voltage for scrolling the wheel-motor block after a failure ki.