CN115923867A - Reversing wheel assembly of rotatable reversing vehicle moving table - Google Patents

Abstract

The invention relates to a device for parallel rail transfer and rotary reversing of a railway vehicle, belonging to the technical field of railway production and maintenance equipment. The transfer table capable of rotating and reversing can not only run along the linear track (16) to complete the parallel rail transfer operation; can also run along the circular track (15) to finish the rotary reversing operation. The problems that the existing vehicle moving platform and the turntable are respectively arranged at two different positions, and the existing vehicle moving platform occupies a large area, has complex procedures and has long operation time are solved. The reversing wheel assemblies (5) are arranged on two sides of the frame (6), when the transfer platform runs along the linear track (16), the axial lead of the wheel (7) is vertical to the linear track (16), when the transfer platform needs to rotate along the circular track (15), the axial lead of the wheel (7) forming the reversing wheel assemblies (5) rotates at a certain angle on the horizontal plane, the extension line of the wheel passes through the center of the circular track (15), and the transfer platform rotates around the center positioning bolt (19) of the center positioning device (13).

Description

Reversing wheel assembly of rotatable reversing vehicle moving table

Technical Field

The invention belongs to the technical field of railway production and maintenance equipment, and relates to a reversing wheel assembly of a rotary reversing vehicle moving table.

Background

Currently, in the production and maintenance process of railway vehicles, parallel line-turning operation and rotary reversing operation need to be carried out on the railway vehicles. Because the transfer platform can only run along a ground linear track, the rotary table is required to complete the rotary reversing operation of the railway vehicle. The transfer platform and the rotary table are independent and arranged at different basic positions in a factory to respectively complete the parallel line-turning operation and the rotary reversing operation of the railway vehicle. Because the transfer platform and the turntable are independent, independent ground foundations need to be arranged, the total occupied area is large, the line-changing and reversing process is complex, the investment time for completing the line-changing and reversing is long, and the total equipment investment is large.

The main reason for the above problems is that the wheels of the existing transfer platform can only run along a linear track and can not run along a circular track, so that the existing transfer platform can only complete the parallel lane-changing operation of the railway vehicle.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a reversing wheel assembly of a rotary reversing transfer table, which allows the transfer table to run along a linear track and also can run along a circular track.

The purpose of the invention is realized by the following measures:

but reversing wheel assembly of gyration switching-over dolly mainly includes switching-over actuating mechanism (2), wheel mounting bracket (3), slewing bearing assembly (4), bearing frame assembly (7), wheel (8), speed reducer assembly (5), its characterized in that: the wheel mounting frame (3) is welded on the main beam (1) of the transfer trolley frame, the slewing bearing assembly (4) is arranged below the wheel mounting frame (3), two bearing seat assemblies (7) are arranged below the slewing bearing assembly (4), load is transmitted to a ground steel rail (9) through an axle (6) and wheels (8), one end of the reversing driving mechanism (2) is arranged on the main beam (1) of the transfer trolley frame, the other end of the reversing driving mechanism is arranged on a lower mounting plate (17) of the slewing bearing assembly (4), and the plane angle of the wheels (8) relative to the main beam (1) of the transfer trolley frame is changed according to the functional requirement of the transfer trolley.

Slewing bearing assembly (4) mainly comprise last mounting panel (15), slewing bearing (16) and lower mounting panel (17), go up mounting panel (15) and wheel mounting bracket (3) electric welding connection above it, lower mounting panel (17) and bearing frame assembly (7) bolted connection below it, lower mounting panel (17) accessible slewing bearing (16) are relative to last mounting panel (15) certain angle of gyration.

The reversing driving mechanism (2) mainly comprises an electric push rod seat (12), an electric push rod (13) and a connecting lever (14), the electric push rod seat (12) is welded on the main beam (1) of the trolley moving frame, the connecting lever (14) is welded on a notch of a lower mounting plate (17) in a correct alignment mode, and the telescopic motion of the electric push rod (13) changes the plane angle position of the lower mounting plate (17) relative to the main beam (1) of the trolley moving frame.

The upper surface of the lower mounting plate (17) is provided with a groove and is matched with the slewing bearing (16) on the lower mounting plate, a gap on the side surface is aligned and welded with a crank arm (14) on the reversing driving mechanism (2), the lower mounting plate (17) is driven to change the position angle relative to the upper mounting plate (15), a bulge on the side surface is aligned and mounted with a force arm plate (18) on the speed reducer assembly (5), and the output torque of the speed reducer (20) is transmitted.

Compared with the prior art, the invention has the beneficial effects that:

by using the technology of the invention, the existing transfer platform can not only run on a linear track to realize the parallel line-changing operation of the railway vehicle, but also run on a circular track to realize the rotary reversing operation of the railway vehicle, and one device has two functions simultaneously, the cost performance is high, and the total investment of the device is saved.

4. Description of the drawings

FIG. 1 is a front view of a reversing wheel assembly of a rotatable reversing traverse table;

FIG. 2 is a top view of the assembly of the reversing wheels of the rotatable reversing traverse table;

FIG. 3- -Assembly left view of the steerable wheels of the rotatable steerable dolly (running along a straight track);

FIG. 4- -assembled left side view of a steerable wheel (orbiting a circular track) of a rotatable steerable dolly;

FIG. 5 is a front view of the reversing drive mechanism;

FIG. 6- -top view of the reversing drive mechanism;

FIG. 7- -front view of the slewing bearing assembly;

FIG. 8- -left side view of the slewing bearing assembly;

FIG. 9- -schematic view of the reducer assembly;

FIG. 10- -front view of the lower mounting plate;

FIG. 11- -top view of the lower mounting plate;

FIG. 12 is a schematic view showing the installation position of a steerable wheel mounted on a traverse table;

in the figure: 1. a transfer trolley frame main beam; 2. a reversing drive mechanism; 3. a wheel mounting bracket; 4. assembling a slewing bearing; 5. assembling a speed reducer; 6. an axle; 7. assembling a bearing seat; 8. a wheel; 9. a steel rail; 10. a circular track; 11. a linear track; 12. an electric push rod seat; 13. an electric push rod; 14. a crank arm; 15. an upper mounting plate; 16. a slewing bearing; 17. a lower mounting plate; 18. a force arm plate; 19. assembling a motor rainproof cover; 20. and a speed reducer.

Detailed Description

Embodiments are described below with reference to the drawings.

The mounting position of the reversing wheel of the rotary reversing transfer platform on the transfer platform is as follows: referring to fig. 12, 8 sets of steering wheel assemblies are mounted on the transfer table, the speed reducers (20) are not mounted on the 4 sets of steering wheel assemblies in the middle position, the speed reducers (20) are mounted on the 4 sets of steering wheel assemblies in the two end positions, the wheels (8) are in a running state along the circular track (10), and the axis line of the wheels (8) passes through the center of the circular track. Referring to fig. 9, a hollow shaft of the speed reducer (20) is fitted around the end of the axle (6), and the wheel (8) is fitted around the axle (6). Referring to fig. 6, an electric push rod (13) on the reversing driving mechanism (2) is provided with two terminal limit switches corresponding to two working states of the transfer platform, namely a running state along a circular track (10) and a running state along a linear track (11).

The assembly of the reversing wheel runs along a linear track (11): the axial lead of the output shaft of the speed reducer (20) is parallel to the main beam (1) of the transfer trolley frame, and the reference is made to fig. 2.

The assembly of the reversing wheel runs along the circular track (10): the axial lead of the hollow shaft of the speed reducer (20) and the main beam (1) of the frame of the transfer trolley form a certain angle and pass through the center of the circular track (10), and refer to fig. 4.

The running state along the linear track (11) is converted into the running state along the circular track (10): the electric push rod (13) is started, the electric push rod (13) stretches out, the lower mounting plate (17) is pushed through the connecting lever (14), when the electric push rod (13) stretches out to a preset limit switch position, the axis of the output shaft of the speed reducer (20) and the main beam (1) of the vehicle moving platform frame reach a preset angle, and the vehicle moving platform is allowed to move along the circular track through the center of the circular track (10).

The running state along the circular track (10) is converted into the running state along the linear track (11): and starting the electric push rod (13), retracting the electric push rod (13), pulling back the lower mounting plate (17) through the connecting lever (14), and allowing the transfer platform to run along a linear track when the electric push rod (13) retracts to a preset limit switch position and the axis line of the output shaft of the speed reducer (20) is parallel to the main beam (1) of the transfer platform frame.

Claims (3)

1. The utility model provides a can gyration switching-over move a car platform mainly includes switching-over wheel assembly (5), frame (6), guiding mechanism (8), locator (9), central positioner (13), its characterized in that: the transfer platform can not only run along a linear track (16) but also run in a rotary mode along a circular track (15), the power receiving tower assembly (12) is installed on one side of the end portion of the transfer platform frame (6) and serves as a power supply source for the linear running of the transfer platform, and the rotary power supply device (11) is installed on a ground foundation and serves as a power supply source for the rotary running of the transfer platform.

2. The traverse table capable of reversing rotation according to claim 1, characterized in that the reversing wheel assemblies (5) are installed on both sides of the frame (6), when the traverse table is running along the linear track (16), the axial lines of the wheels (7) are perpendicular to the linear track (16), when it is desired to run along the circular track (15), the axial lines of the wheels (7) constituting the reversing wheel assemblies (5) can rotate at a certain angle on the horizontal plane, the extension line thereof passes through the center of the circular track (15), and the traverse table rotates around the center positioning pin (19) of the center positioning means (13).

3. The traverse table capable of realizing rotary reversing according to claim 1, characterized in that the centering device (13) mainly comprises a separate electrohydraulic push rod (18) and a centering bolt (19), when the traverse table runs along the linear track (16), the separate electrohydraulic push rod (18) drives the centering bolt (19) to retract to the ground, when the traverse table needs to rotate along the circular track (15), the separate electrohydraulic push rod (18) drives the centering bolt (19) to extend out and be inserted into a rotation center hole of the frame (6) to be used as the rotation center of the traverse table.

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