JP2002264608A - Facility for temporarily press-fitting wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automate operations such as conveying and positioning wheels and axles and temporarily press-fitting the wheels, during the process of temporarily press fitting the wheels. SOLUTION: An axle 3 is conveyed to a temporary press fitting device 22 by use of an axle carrier 1. The axle 3 conveyed is supported by lifters 23a and 23b and positioned on a pressing centerline PL. Right and left wheels 11 are delivered to both ends 3a and 3b of the axle 3 by use of wheel delivery trucks 9a and 9b and are guided to the press heads 33a and 33b of the temporary press fitting device 22 via wheel guides 16a and 16b. The right and left wheels 11 guided are gripped by chuck devices 38 located on the front faces of the press heads and are each positioned on the centerline PL. Press-head mounting trucks 27a and 27b are advanced to predetermined positions and a press cylinder 36 is actuated to push out the press heads 33a and 33b to temporarily press-fit the right and left wheels 11 to the axle 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility for completely automating a preliminary press-fitting step prior to press-fitting wheels to an axle in a wheel set assembly line for a bogie for a railway vehicle.

[0002]

2. Description of the Related Art Wheelsets for railway vehicles are disassembled into wheels and axles during regular inspections, and after checking and repairing scratches and wear, etc., the wheels are pressed into the axles again and assembled into the wheelset. Can be

Conventionally, the assembling work of a wheel set has been performed as shown in FIG. That is, the axle 3 is first carried into the space between the press cylinder 46 and the press load receiving bracket 47 by a crane or the like, and its positioning (coordinate of the axle axis with the press center) is performed. Next, the wheel 11 is carried in front of the press load receiving bracket 47 by a crane or the like, and its positioning (the center of the wheel is made to coincide with the press center) is performed. Thereafter, the press cylinder 46 is driven, and one end 3a of the axle 3 is pushed into the center hole of the wheel 11 by the press pressure to press-fit the wheel. Next, the axle 3 is turned 180 degrees by a crane or the like, and new wheels 11 are carried in front of the press load receiving bracket 47 by a crane or the like. Then, the axle 3
The wheel 11 is also press-fitted into the other end 3b.

However, since the pressing pressure for press-fitting the wheel 11 into the axle 3 is extremely high, if the positioning of the wheel or the axle is incorrect, the wheel 11 or the axle 3 will be seriously damaged.

For this reason, in recent wheel set assembly lines, the press-fitting operation is divided into a temporary press-fitting step and a main press-fitting step. First, in the temporary press-fitting step, wheels to be press-fitted into both ends of the axle in advance with a small press pressure. In the main press-fitting step, regular press pressure is applied to the wheels accurately mounted on the axle in the temporary press-fitting step, and press-fitting is performed.

[0006]

With the provision of such a temporary press-fitting step, damage to wheels and axles during press-fitting operation has been greatly reduced as compared with the prior art. Further, in this press-fitting step, it is not necessary to carry out the work of carrying in and positioning the wheels and the axle as in the related art, and the work is simplified to only press-fitting.

However, in the temporary press-fitting step, the axle 3 and the wheels 11 are carried between the press cylinder 46 and the press load receiving bracket 47 by a crane or the like, substantially in the same manner as the conventional press-fitting operation shown in FIG. Positioning,
The fact is that the left and right wheels 11 are attached to the axle 3 one by one by manual work of temporarily press-fitting.

The present invention has been made in view of such circumstances, and has as its object to provide a temporary press-fitting facility in which the loading, positioning, temporary press-fitting of the axles and wheels in the wheel temporary press-fitting step are all automated.

[0009]

According to the present invention, there is provided a temporary press-fitting apparatus which achieves the above object, comprising: an axle transport trolley for gripping an axle orthogonally and horizontally to a traveling direction and transferring the same to a temporary press-fitting device; Two trucks traveling on rails laid perpendicularly to the traveling direction of the transport cart, which deliver wheels mounted on a table to both sides of the axle transported by the axle transport cart, and each delivery position. Raise the table with
The wheel delivery cart that feeds the delivered wheels to the guide rails of the wheel guide device, and the wheels that are thrown into the guide rails from each wheel delivery cart are rolled along the guide rails, and then pressed into each press head of the temporary press-fitting device. A wheel guide device for guiding, a pair of axle lifting / lowering devices for horizontally supporting the axle conveyed by the axle carrier vehicle above the carrier vehicle and positioning the axle on the center line of the press, and a wheel guided by the wheel guide device; A pair of press heads, which are gripped by a chuck on the front side facing the shaft end and positioned on the center line of the press, and the wheels are temporarily pressed into the axle by the pressing force of a press cylinder connected to the back side; A pair of press heads, each equipped with a head that can move forward and backward with respect to the shaft end of the axle, and can also move itself with respect to the shaft end of the axle. A temporary indentation device and a mounting carriage,
Consisting of

In this case, in the wheel delivery cart, it is preferable that the upright table on which the wheels are mounted is formed by an electric rotary roller conveyor, and a wheel fixing mechanism is provided at the center of the table.

In the wheel guide device, a cross beam is stretched in parallel above the guide rail, and two support rollers suspended from the cross beam are brought into contact with the tread flange of the wheel on the guide rail, and are moved along the cross beam. Then, a wheel that rolls along the guide rail is used.

The chuck provided on the front surface of the pair of press heads of the temporary press-fitting device is used in such a manner that the distance between the upper chuck roller and the lower chuck roller projecting from the front surface of the press head expands and contracts, and the wheel is gripped from above and below during the contraction. You.

It is desirable that the pair of press head mounted carts of the temporary press-fitting device be provided with a stopper capable of adjusting the advance limit in accordance with the axle shaft length.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a temporary press-fitting device according to the present invention comprises an axle transport truck 1, wheel delivery trucks 9a and 9b, wheel guide devices 16a and 16b, and temporary press-fitting. And a device 22.

That is, the axle transporting trolley 1 moves the axle 3 suspended on the trolley 1 by the axle transfer machine 2 or the crane after being sequentially cared for at a plurality of stations ST in the traveling direction indicated by the arrow. The temporary press-fitting device 22 grips the rail 4 laid on the floor surface while holding it orthogonally and horizontally.
It is transported to

As shown in FIGS. 3 to 5, the axle transport vehicle 1 is a four-wheel vehicle powered by a hydraulic motor 5, and has a central portion of the axle 3 to be hung down at regular intervals on its upper surface. Two grips 6, 6 for gripping are provided. The handles 6, 6 are opened and closed by a hydraulic cylinder 7, and the distance between the handles 6, 6 can be freely adjusted according to the type of the axle 3. Also, these handles 6, 6
It is provided to be able to move up and down a certain height by operating a hydraulic cylinder.

Two wheel delivery vehicles 9 traveling on rails 8 laid perpendicular to the traveling direction of the axle transportation vehicle 1
a and 9b are the one-carriage 9a and the cared wheel 11 carried in from the wheel carry-in entrance 10 by the axle carrier car 1 described above.
And the other truck 9b transports the similarly-carried wheels 11 to the one end 3a of the axle 3 conveyed by the
To the other end 3b.

These wheel delivery carts 9a and 9b are shown in FIG.
As shown in FIG. 8 to FIG. 8, the four-wheeled truck is powered by a hydraulic motor, and includes a table 12 on which wheels 11 are mounted. The table 12 is formed by an electric rotary roller conveyor, and the center of the upper surface thereof is provided with a hydraulic cylinder 1.
The fixed plate 14 of the wheel which moves up and down by the operation 3 is provided. Further, as shown in FIG. 9, the entire table 12 stands up by 90 ° by the operation of the hydraulic cylinder 15 as shown in FIG. Therefore, when the table 12 is raised by 90 ° to release the fixing of the wheels 11, the wheels 1
1 can be slid down from the table 12 in an upright state.

The wheel guide devices 16a and 16b are installed on both sides of the traveling rail 4 of the axle transport vehicle 1.
One wheel guide device 16a is provided with the wheel delivery cart 9a.
The wheel 11 delivered to the one end 3a side of the axle 3 is rolled along the guide rail 17a while the temporary press-in device 2
2 guides the front of one press head 33a to the front, and the other wheel guide device 16b rolls the wheel 11 similarly delivered to the other end 3b side of the axle 3 by the wheel delivery cart 9b along the guide rail 17b. The guide is guided to the front surface of the other press head 33b of the temporary press-fitting device 22 while being made.

These guide rails 17a, 17b are
A wheel delivery truck 9a, on which a wheel 11 is mounted, is formed on an elevated road which crosses the upper part of the running rail 8 at right angles.
9b can pass through. The guide rails 17a and 17b are provided with guard fences 17 'for standing and holding the wheels 11 over the entire length thereof.

Above each guide rail 17a, 17b, a horizontal beam 18 is stretched in parallel, and two parallel support rollers 20, 20 which can expand and contract are suspended from the lower surface side. These support rollers 20, 20 are provided such that the roller portions contact the tread surface flanges of the wheels 11 on the guide rails 17a, 17b, and move horizontally along the cross beam 18 by driving the chain 21 by a hydraulic motor. The wheels 11 are pushed by the support rollers 20, 20 and roll on the guide rails 17a, 17b.

The provisional press-fitting device 22 is provided at both ends 3a, 3b of the axle 3 conveyed by the axle conveyance cart 1, with the wheel guide device 1
Wheels 11 guided to both sides of axle 3 at 6a, 16b,
11 is press-fitted and attached. As shown in FIGS. 10 to 11, the temporary press-fitting device 22
Axle elevating lifters 23a, 23b provided symmetrically with respect to the left and right, and press heads 33a, 33b
And a carriage 27a, 27b for mounting the press head.

That is, the axle elevating lifters 23a, 23a
3b lifts the axle 3 conveyed to the temporary press-fitting device by the axle conveyance cart 1 from both lower sides and horizontally supports (centers) on the press center line PL. These lifters 23a and 23b are mounted on the base 24 with the hydraulic cylinder 2
5, and a V-block 26 for supporting the axle 3 is provided at the rod tip.

The press head 33a, 33b is a vertically long rectangular frame 34 _1, 34 _2, a frame body formed by integrally bonding back and forth through a plurality of width material. These press head 33a, the 33b, the front frame 34 ₁ side facing the shaft end of the axle 3, the chuck device 38 for gripping the wheel guide device 16a, the wheels 11 come guided by 16b is provided. The chuck device 38 comprises two upper chuck rollers 39a projecting forwardly from the head front frame 34 _1, 3
9a and two lower chuck rollers 39b, 39b. That is, as shown in FIG. 12, the upper chuck rollers 39a. 39a is the rotating shaft 3
9 'is attached horizontally and parallel to the upper bearing block 40a via the lower chuck rollers 39b, 39b.
Are mounted horizontally and parallel to the lower bearing block 40b via the rotating shaft 39 '.

The upper bearing block 40a and a lower bearing block 40b is slidably mounted vertically along the right and left of the shaft 41 which is erected between the rear frame 34 ₂ a front frame 34 _1. These bearing blocks 40a, 40
As shown in FIG. 13, bar-shaped racks 42 a and 42 b extending along the shaft 41 are provided on both left and right sides of the rack b, and the racks on the same side are respectively wound around sprockets 43 at the upper end of the shaft 41. They are connected by a chain 44 which is hung. Also, the upper bearing block 40a
Of the hydraulic cylinder 45 fixed vertically to the upper frame of the press heads 33a and 33b.
The tip is stuck. Therefore, the hydraulic cylinder 45
When the rod 45 'is extended, the upper bearing block 40a moves the shaft 4 as shown by arrows and imaginary lines in FIG.
1, and the lower bearing block 40 b connected by the chain 44 rises along the shaft 41. As a result, the distance between the upper chuck rollers 39a, 39a and the lower chuck rollers 39b, 39b is reduced, and the wheel 11 is held between these rollers. The wheel 11 thus gripped is positioned at a position where the center thereof coincides with the press center line PL.

[0026] Each press head 33a, the rear surface frame 34 ₂ side 33b, are fixed rod 36 'the tip of the pressing cylinder 36 at its four corners. These press cylinders 36 push the press heads 33a, 33b straight forward by the synchronous extension of their rods 36 ',
The wheel 11 gripped by the chuck device 38 is temporarily pressed into the end of the axle 3. These press cylinders 36 include press head mounting carts 27a and 27b described later.
And is horizontally fixed to a frame 37 installed at the rear of the upper surface of the camera.

The carriages 27a and 27b for mounting the press heads
In each case, the LM guide 35 is laid on the flat upper surface, and the press heads 33a and 33b are mounted so as to be able to advance and retreat with respect to the shaft end of the axle 3. The tip of a rod 30 'of a hydraulic cylinder 30 fixed horizontally to the main body housing 29 is fixed to these press head mounting carts 27a and 27b. Axle 3 on the LM guide 28
It is designed to move forward and backward with respect to the shaft end. Also,
As shown in FIG. 14, the advance limit can be adjusted by adjusting the slide amount of the stopper 31 that comes into contact with the shaft end of the axle 3 using the hydraulic motor 32. Therefore, at the time of temporary press-fitting, the press head mounting cart 27
By moving a and 27b forward, the chucked wheel 11 can always be set at a predetermined press-fitting start position from the shaft end of the axle 3 even if the length of the axle 3 differs depending on the type.

Next, a procedure for performing the temporary press-fitting by the temporary press-fitting facility configured as described above will be described.

The axle carrier 1 is made to stand by at a predetermined position on the rail 4. The axle 3 that has been groomed at the plurality of stations ST is suspended on the carriage 1 by the axle transfer device 2 or the like. The suspended axle 3 is the handle 6 of the axle carrier 1
6 is gripped. Next, the axle transport vehicle 1 is mounted on the rail 4
Starts running along the road, and the gripped wheel 3 is
Convey to 2. Then, the axle transporting trolley 1 travels to the temporary press-fitting device 22, and the left and right press heads 33a, 33
When stopped between b, lifters 23a and 23b rise,
Lift the axle 3 horizontally above the trolley 1. At this time, the handles 6, 6 rise together with the axle 3, and the lifters 23a,
Hold the axle 3 until the lifting of 23b stops. When the lifting of the lifters 23a, 23b is completely stopped, the handles 6, 6 are released from the axle 3 and descend on the carriage 1. Thus, the axle 3 is positioned on the press center line PL of the temporary press-fitting device 22.

On the other hand, the wheels 11 which have been maintained are sequentially supplied to a wheel supply port 10 provided at one end of the rail 8 by a conveyor or the like. At this time, two wheel delivery carts 9a, 9b
Are moved to the wheel supply port 10 side and made to stand by in tandem, and the tables 12 of the carts 9a and 9b, that is, the roller conveyors are rotated in the direction opposite to the supply port 10. Then, the wheel 11 supplied first from the wheel supply port 10 moves and passes over the table 12 of the truck 9b, and moves to the center of the table 12 of the truck 9a, whereupon it is fixed by the fixing plate 14. Further, the wheel 11 supplied next from the wheel supply port 10 is fixed by the fixing plate 14 when it has moved on the table 12 of the cart 9b to a substantially central portion.
As a result, one wheel 11 is mounted on each table 12 of the two wheel delivery carts 9a and 9b.

Next, the wheel delivery carts 9a and 9b are
Start traveling along. One trolley 9a is a rail 4
When the vehicle has passed below the guide rail 17a of one of the wheel guide devices 16a located on the opposite side, the traveling is stopped, the table 12 is erected approximately 90 ° and the fixed plate 14 is opened, and the wheel 11 is moved to the guide rail 17a. Put on top. The other carriage 9b stops running when it passes below the guide rail 17b of the other wheel guide device 16b located on the front side of the rail 4, and stops moving.
And the fixing plate 14 is opened, and the wheel 11 is thrown on the guide rail 17b.

In both wheel guide devices 16a and 16b, the pair of support rollers 20 and 20 descend from the upper cross beam 18 with respect to the wheels 11 loaded on the respective guide rails 17a and 17b. And starts horizontal movement toward the tip side along the cross beam 18. Thereby, the wheel 11 on one guide rail 17a moves to the one press head 33a of the temporary press-fitting device 22 while being rolled on the guide rail 17a by being pushed by the support rollers 20,20. The other guide rail 1
The wheel 11 on 7b moves to the other press head 33b of the temporary press-fitting device 22 while being rolled on the guide rail 17b by being similarly pressed by the support rollers 20,20.

Each of the wheels 11, which has moved the guide rails 17a, 17b to the tip, is pushed out from the tip to the front of the press heads 33a, 33b, and is placed on the lower chuck rollers 39b, 39b of the chuck device 38. Then, the hydraulic cylinder 45 is operated, the upper chuck rollers 39a, 39a of the chuck device 38 are lowered, and the lower chuck rollers 39b, 39b are raised,
The wheel 11 is sandwiched between these rollers, and is firmly gripped. Thereby, each wheel 11 held by the chuck device 38 of both press heads 33a and 33b is positioned at a position where the center thereof coincides with the press center line PL.

Next, the press heads 33a, 33
b mounted press head carriages 27a, 27
7b starts moving forward with respect to the axle 3 already positioned on the press center line PL by the operation of the hydraulic cylinder 30. When the stopper 31 whose length has been adjusted according to the type of the axle 3 comes into contact with the shaft end of the axle 3,
The forward movement of these carts 27a and 27b stops. As a result, the wheels 11 are set at the left and right shaft ends of the axle 3 from both sides to a predetermined press-fitting start position.

Next, the four press cylinders 36 for driving the press heads 33a and 33b, respectively, are operated simultaneously to further advance both press heads 33a and 33b with respect to the axle 3. With this pressure, the wheels 11 are temporarily press-fitted into the left and right wheel centers of the axle 3 respectively.

When the temporary press-fitting is completed, the chuck rollers 39a and 39b of both press heads 33a and 33b open to release the wheels 11, and the press heads 33a and 33b
33b retreats to the original position on each of the carts 27a and 27b. Next, when these press head mounted carts 27a, 27b are retracted to the original position and separated from the axle 3, the handles 6, 6 of the axle transport cart 1 which have been waiting rise again to grip the axle 3, The lifters 23a and 23b supporting the axle 3 are retracted downward. Next, when the grips 6, 6 holding the axle 3 descend on the carriage 1, the axle transport carriage 1 starts running again for the next main press-in step.

[0037]

As described above, according to the provisional press-fitting equipment for a wheel according to the present invention, operations such as loading, positioning, and provisional press-fitting of axles and wheels in the provisional press-fitting process, which have conventionally been performed almost manually. Can be performed automatically. Therefore, the time required for the temporary press-fitting is greatly reduced, and the safety and accuracy of the work can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing an entire temporary press-fitting facility according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a side view illustrating an axle transport cart.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a front view of FIG. 3;

FIG. 6 is a side view illustrating a wheel delivery cart.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a front view of FIG. 6;

FIG. 9 is a partial side view showing a standing state of a table of the wheel delivery cart.

FIG. 10 is a side view illustrating a temporary press-fitting device.

FIG. 11 is a plan view of FIG. 10;

FIG. 12 is a front view of an essential part for explaining a chuck device.

FIG. 13 is a front view of a main part for explaining a chuck device.

FIG. 14 is a vertical sectional side view of a main part for explaining a stopper.

FIG. 15 is a side view illustrating a conventional wheel press-fitting step.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Axle conveyance trolley 3 Axle 4 Rail 6 Handle 8 Rail 9a, 9b Wheel delivery trolley 11 Wheel 12 Table 14 Fixed plate 16a, 16b Wheel guide device 17a, 17b Guide rail 20 Support roller 22 Temporary press-fit device 23a, 23b Lifter 27a, 27b Press head mounting cart 30 Hydraulic cylinder 31 Stopper 33a, 33b Press head 36 Press cylinder 38 Chuck device 39a Upper chuck roller 39b Lower chuck roller 45 Hydraulic cylinder

Claims (5)

[Claims] 1. An axle transport vehicle that grips an axle orthogonally and horizontally to a traveling direction and transports the axle to a temporary press-fitting device, and two vehicles that travel on a rail laid perpendicular to the traveling direction of the axle transport vehicle. And the wheels mounted on the table are respectively delivered to both sides of the axle transported by the axle transport trolley, and the tables are erected at each delivery position, and the delivered wheels are mounted on the guide rails of the wheel guide device. A wheel delivery truck to be loaded, a wheel guide device that guides the wheels loaded into the guide rails from each wheel delivery truck to each press head of the temporary press-fitting device while rolling along the guide rails, and an axle transport truck. A pair of axle lifting and lowering lifters that horizontally support the transported axle above the transport trolley and position it on the center line of the press, and the wheels guided by the wheel guide device, with the axle shaft end A pair of press heads, which are gripped by opposed chucks on the front side and positioned on the center line of the press, and the wheels are temporarily pressed into the axle by the pressing force of a press cylinder connected to the back side, and A temporary press-fitting device having a pair of press head mounted carts mounted so as to be capable of moving forward and backward with respect to the shaft end of the axle, and also being capable of moving forward and backward with respect to the shaft end of the axle. Facility. 2. The two-wheel delivery cart, wherein an upright table on which wheels are placed is formed by an electric rotary roller conveyor, and a wheel fixing mechanism is provided at the center of the table. 2. The temporary press-fitting device for wheels according to 1. 3. A wheel guide device comprising: a cross beam stretched in parallel above a guide rail; and two support rollers suspended from the cross beam contact a tread flange of a wheel on the guide rail, and extend along the cross beam. Moving the wheels along the guide rails.
Or the provisional press-fitting equipment for wheels according to 2. 4. A chuck provided on a front surface of a pair of press heads of a temporary press-fitting device, wherein a distance between an upper chuck roller and a lower chuck roller protruding from the front surface of the press head expands and contracts, and the wheel is gripped from above and below when the distance is reduced. 4. The temporary press-fitting equipment for a wheel according to claim 1, 2 or 3. 5. The temporary wheel press as claimed in claim 1, wherein a pair of press head mounted carts of the temporary press-fitting device are provided with stoppers capable of adjusting a forward limit in accordance with an axle shaft length. Press-fitting equipment.