JPH10279291A - Automatic guided vehicle for railway wheel wheel set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely and efficiently carry a railway wheel wheel set by attaching a pair of left and right forks to a truck having a round-turnable traveling wheel for the forks to be freely moved up and down and freely slid back and forth with an inter-fork space freely adjusted and providing a clamp for supporting a railway shell track surface in its tip. SOLUTION: In an automatic guided vehicle traveling along a magnetic tape guiding line buried in a floor surface, a drive shaft 10 and a follower wheel 10' are provided in a truck 2 so as to be freely spun around spin axes Z and Z' in the front wheel of a left side and the rear wheel of a right side and the front wheel of the right side and the rear wheel of the left side. A pair of left and right forks 3 and 3 are provided in the truck 2, and a clamp 4 for supporting the track surface of a railway wheel is provided in a horizontal arm protruded from this fork 3 toward the front of the truck 2. Further, a pair of supporters 5 and 6 are attached to the lower parts of a fork supporting panel, a reduction gear attached to the center of an axle is carried by one supporter 5, and a reduction gear attached to an axle side more the center part of the axle is carried by the other supporter 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railway wheel-wheel axle guided vehicle for transporting railway wheels to a predetermined place when inspecting or repairing a railway vehicle.

[0002]

2. Description of the Related Art When inspecting or repairing a railway vehicle, a vehicle body or a chassis is transported by an overhead crane, and wheels left on rails are transported by a forklift.
However, if the axle attached to the wheels is equipped with ancillary devices such as reduction gears, when the axle is lifted by a forklift, the center of gravity of the ancillary device moves and the ancillary device rotates, and the reaction of the ancillary device causes Together, the wheels could fall to the floor.

On the other hand, when a railway wheel conveyed by a forklift is placed on a floor or a rail, ancillary devices such as a speed reducer land on the floor before the wheels, so that the ancillary devices such as a speed reducer are not damaged. Requires meticulous attention and skilled skills. Under such circumstances, automation of the work of transporting railway wheels has not progressed at present. In addition, when the bearings located at both ends of the axle are supported by the forks of the forklift when the railway wheels are transported by the forklift, the bearings may be damaged or scraped.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and it has been found that an auxiliary device such as a speed reducer attached to an axle and a bearing portion at both ends of the axle are damaged. It is an object of the present invention to provide a railway wheel axle automatic guided vehicle that can safely and efficiently transport a railway wheel axle without causing it to rub and scrape.

[0005]

According to the first aspect of the present invention, there is provided an automatic guided vehicle having a wheelset for a wheelset with a wheel, a truck having traveling wheels that can turn freely, a truck capable of moving up and down, sliding back and forth, and a fork interval. A pair of right and left forks provided to be adjustable, a rail wheel track surface support clamp provided at the tip of the fork, and a supporter supporting an auxiliary device such as a speed reducer attached to the axle of the rail wheel. It is characterized by having.

According to the first aspect of the invention, by changing the direction of the traveling wheels provided on the bogie, it is possible to travel in any direction without changing the direction of the bogie itself. In addition, by directing the traveling wheels in a direction perpendicular to a straight line passing through the center axis of the bogie and the spin axis of the traveling wheels, the bogie can be turned or spun about the central axis of the bogie.

Further, a pair of left and right forks is raised and lowered or slid back and forth, and a clamp provided at a tip of the left and right forks is adjusted to a gap between the forks to face each track surface of the railway wheel. Can support each track surface of the railway wheel. Furthermore, a supporter can be inserted below the auxiliary device such as a speed reducer attached to the axle of the railway wheel to prevent rotation of the auxiliary device such as the speed reducer.

[0008] A second aspect of the present invention is an automatic guided vehicle with a wheelset for a wheel of a wheel, wherein the supporter can be raised and lowered, and its tip is flat. According to the second aspect of the present invention, the supporter can be smoothly inserted between the floor surface and an auxiliary device such as a speed reducer attached to the axle of the railway wheel. The railway wheel axle automatic guided vehicle according to the third aspect of the invention is characterized in that the supporter is slidable in the front-rear direction of the bogie.

According to the third aspect of the present invention, by moving the supporter forward, the supporter can be inserted between an auxiliary device such as a speed reducer attached to the axle of the railway wheel and the floor. , The supporter can be pulled out from under the auxiliary device such as a speed reducer attached to the axle of the railway wheel.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the railway wheel axle automatic guided vehicle 1 mainly includes a bogie 2 and a pair of left and right forks 3.
, A clamp 4, and a pair of supporters 5 and 6.

The carriage 2 is guided by a magnetic induction system.
The vehicle runs unmanned along a magnetic tape guide wire (not shown) embedded in the floor F (see FIG. 2). However, other guidance methods may be used. The floor F is flush with a rail (not shown). In addition, the bogie 2 has a drive wheel 10 capable of turning or spinning around a spin axis Z on a left front wheel and a right rear wheel in the direction of arrow A, and a spin wheel on a right front wheel and a left rear wheel. It has a driven wheel 10 'that can be turned or spun about the axis Z'.

Therefore, as shown in FIG.
When the truck 10 is oriented in the front-rear direction of the truck 2, the truck 2 can be moved forward or backward while the truck 2 is directed in the direction of arrow A. In addition, when the drive wheels 10, 10 are directed to the side of the trolley 2, the trolley 2 can be traversed rightward or leftward while the trolley 2 is directed in the direction of arrow A. In addition, when the drive wheels 10, 10 are oriented in an oblique direction, the trolley 2 can be skewed diagonally forward or obliquely rearward while the trolley 2 is oriented in the direction of arrow A. Further, as shown in FIG. 10, when the drive wheels 10, 10 are directed in a direction of a straight line b orthogonal to a straight line a passing through the center axis O of the bogie 2 and the spin axis Z of the drive wheel 10,
The cart 2 can be turned or spun on the spot about the center axis O of the cart.

The carriage 2 has a slide shaft 37 to be described later.
A notch 9 is formed at the front end of the carriage 2 so as not to hinder the descent of the vehicle. The drive wheel 10 is, as shown in FIG.
Are rotatably fitted to a bottomed cylindrical boss 13 via a bearing 12. Then, the bottom (side) 14 of the boss 13
, A drive motor 16 with a transmission and an encoder 18 as a control device are integrally mounted.

The shaft 19 of the transmission 17 is
1 is fixed to the bottom (side) 20 of the tire 1 and when the shaft 19 rotates clockwise or counterclockwise, the tire 15 moves in the direction of arrow c.
As shown by the arrow, it is designed to rotate clockwise or counterclockwise. Therefore, if the relationship between the rotation speed of the transmission shaft 19 measured by the encoder 18 and the rolling distance of the tire 15 is determined, the rotation speed of the transmission shaft 19 can be measured by the encoder 18 to obtain the tire 15. Can be obtained.

The boss 13 is fixed to an annular member 23 via a support member 21. The annular member 23 is rotatably fitted inside an annular large gear 22 fixed to the bottom of the carriage 2. I have. The small gear 24 meshed with the outside of the large gear 22 revolves around the large gear 22. The rotation of the small gear 24 is performed by an electric motor 25 attached to the support member 21.

Accordingly, when the small gear 24 revolves around the large gear 22, the drive wheel 10 rotates clockwise or counterclockwise around the spin axis Z having the same axis as the axis C of the large gear 22 as shown by an arrow d. Rotate clockwise. Since the rotation speed of the electric motor 25 can be measured by the encoder 26,
If the relationship between the turning angle of the drive wheel 10 and the rotation speed of the electric motor 25 is checked in advance, by measuring the clockwise or counterclockwise rotation speed of the electric motor 25, as shown in FIG. A drive wheel 1 starting from a reference line f of the drive wheel 10, that is, a reference line f parallel to the longitudinal axis i of the bogie 2.
0 (see FIG. 1) can be controlled.

As shown in FIG. 2, the bogie 2 is provided with a safety device (not shown) such as an obstacle detection sensor in addition to an alarm device 7 such as a rotation alarm lamp for performing unmanned operation.
Further, the carrier 1 is provided with a pair of left and right forks 3, 3 on the back side of a bonnet 8 protruding above the bogie 2, and the interval between them is, as shown in FIG. Two widths of the width N can be selected.

As shown in FIG.
Is provided with two upper and lower rods 32, 32 slidable in the lateral direction of the carriage 2 on both sides thereof, and the upper and lower two rods 32, 32 respectively support the L-shaped forks 3. ing. Also, this fork support plate 31
Is provided with a pair of left and right hydraulic cylinders 33, 33, and these hydraulic cylinders 33, 33 adjust the distance between the left and right forks 3, 3.

The fork support board 31 is fixed to a second gate-shaped frame 35 provided on the first gate-shaped frame 34 so as to be able to move up and down. The lifting and lowering of the second portal frame 35 is performed in the first
This is carried out by a hydraulic cylinder 36 provided on the portal frame 34 of FIG. Further, as shown in FIG. 5, the first portal frame 34 is supported by a slide shaft 37 that slides in the front-rear direction of the bogie 2, and the hydraulic cylinder 38 is operated to rotate the clock 39 around the shaft 39. It is designed to rotate in a clockwise or counterclockwise direction.

As shown in FIG. 5, the fork 3 has a vertical frame 40 fixed to the two upper and lower rods 32, 32 already described.
And a horizontal arm 41 projecting from the vertical frame 40 toward the front of the bogie. This arm 41
It has a clamp 4 for supporting the track surface of the railway wheel. The clamp 4 includes a pair of clamp pieces 51 and 52. One clamp piece 51 is fixed to the tip of the arm 41, and the other clamp piece 52 slides on the small cross section 42 of the arm 41. Is provided. The clamp piece 52 is slid in the longitudinal direction of the arm 41 by a hydraulic cylinder 44 installed on the large section 43 of the arm 41. The clamp pieces 51 and 52 are
In order to support the track surface of the railway wheel, a concave portion 53 having a fan shape in a side view is provided.

Further, as shown in FIG. 4, a pair of supporters 5, 6 are attached to a lower portion of the fork support plate 31. One supporter 5 corresponds to a speed reducer (not shown) mounted on the center of the axle, and the other supporter 6 has a speed reducer (not shown) mounted on the wheel side of the center of the axle. ). Supporters 5,
As shown in FIG. 6, a rectangular cylinder portion 63, a rectangular rod portion 64, and a flat support portion 65 are provided, and the support portion 65 is formed by a forwardly inclined plate-like connecting portion 66. 64. The rod portion 64
Is slid in the front-rear direction of the carriage 2 by the screw shaft 67. Further, the supporters 5 and 6 can be raised at the tip thereof by a hydraulic cylinder 68.

Next, the operation of the above-described unmanned guided vehicle with a wheelset on a railway wheel will be described. First, the pair of left and right forks 3 and 3 are widened so as to be slightly wider than the target gauge, and then the forks 3 and 3 are lowered to the floor F barely as shown by a two-dot chain line in FIG. The trolley 2 is moved forward at a very low speed. At this time, the interval between the clamp pieces 51 and 52 of the clamp 4 is slightly wider than the interval between the parts of the railway wheel 70 to which the clamp pieces 51 and 52 are applied. Then, the bogie 2 is stopped at a position where the clamp center n and the axle center o match.

Next, as shown in FIG. 8, the left and right forks 3, 3 are slid inward as indicated by the arrow a 'and stopped at the position of the collar 72 of the wheel 71. Next, as shown in FIG. 9, the rear clamp piece 52 is moved forward as indicated by an arrow b ′, and is stopped when it hits the wheel 71. Thereafter, the hydraulic cylinder 36 is operated to slightly lift the forks 3, 3 to adjust the sitting of the wheels 71.

Next, as shown in FIG. 9, after the tip of the supporter 6 corresponding to the speed reducer 74 attached to the axle 73 is grounded to the floor, the rod portion 64 of the supporter 6 is moved in the direction of arrow c '. The cart 2 is moved back in the direction of the arrow d 'while being extended, and the casters 75 attached to the speed reducer 74 are placed on the support portions 65 of the supporters 6. At this time, the speed of the carriage 2 and the speed of the supporter 65 of the supporter are linked.

At this time, the slide shaft 37 may be moved backward instead of the carriage 2. Caster 75 of reduction gear 74
When the player gets on the supporter 6, the fork 3 is returned to the initial position indicated by the solid line as shown in FIG. Thereafter, as shown in FIG. 10, the bogie 2 is turned around on the spot, and the railway wheel 70 is transported to a predetermined location. In the above description, the case where the arm 41 is of a fixed type has been described. However, as shown in FIG. 11, the arm 41 'may be of a sliding type. In this case, the small-section arm 42 'is slidably provided on the large-section arm 43'. The small section arm 42 'is slid by, for example, a screw shaft (not shown). The rear clamp piece 52 'is slidably provided on the small-section arm 42', and is slid by a hydraulic cylinder 44 'attached to the small-section arm 42'. As described above, when the arm 42 'is changed to the slide type, the slide type supporters 61, 62 are used.
To be fixed.

[0026]

As described above, the railway wheel axle automatic guided vehicle according to the first aspect of the present invention includes a bogie having traveling wheels that can be turned around, a hoist that can be moved up and down, slidable back and forth, and a fork. A pair of left and right forks provided at an adjustable interval, a rail wheel track surface support clamp provided at the tip of the fork, and a supporter for supporting ancillary devices such as a speed reducer attached to the axle of the railway wheel. Therefore, by changing the direction of the traveling wheels provided on the bogie, it is possible to travel in any direction without changing the direction of the bogie itself. In addition, by directing the traveling wheels in a direction perpendicular to a straight line passing through the center axis of the bogie and the spin axis of the traveling wheels, the bogie can be turned or spun about the central axis of the bogie.

Further, a pair of left and right forks is moved up and down or slid forward and backward, and the distance between the forks is adjusted so that the clamps provided at the tips of the left and right forks face each track surface of the railway wheel. Can support each track surface of the railway wheel. Furthermore, a supporter can be inserted below the auxiliary device such as a speed reducer attached to the axle of the railway wheel to prevent rotation of the auxiliary device such as the speed reducer.

Further, in the railway wheel axle automatic guided vehicle according to the second aspect of the present invention, since the supporter can be raised and lowered and the tip of the supporter is made flat, the deceleration mounted on the axle of the railway wheel. A supporter can be smoothly inserted between ancillary equipment such as a machine and the floor. Claim 3
Since the railway wheel axle automatic guided vehicle according to the invention described in (1), the supporter is slidable in the front-rear direction of the bogie, by moving the supporter forward, ancillary devices such as a reduction gear attached to the axle of the railway wheel. The supporter can be inserted between the floor and the floor surface, and the supporter can be pulled out from under the auxiliary device such as a reduction gear attached to the axle of the railway wheel by backing the supporter.

[Brief description of the drawings]

FIG. 1 is a plan view of a railway wheelset automatic guided vehicle according to the present invention.

FIG. 2 is a side view of the railway wheelset automatic guided vehicle of FIG. 1;

FIG. 3 is a sectional view of a driving wheel.

FIG. 4 is a front view showing a main part of the railway wheelset automatic guided vehicle of FIG. 1;

FIG. 5 is a side view showing a main part of the railway wheelset automatic guided vehicle of FIG. 1;

FIG. 6 is a side view including a partial cross section of the supporter.

FIG. 7 is an explanatory diagram showing a state immediately before supporting a railway wheel and a state in which the railway wheel is lifted.

FIG. 8 is an explanatory view showing a state in which the clamp has hit the brim of the wheel.

FIG. 9 is an operation explanatory view of supporting a caster of a speed reducer by a supporter.

FIG. 10 is an explanatory view of turning a bogie in place.

FIG. 11 is a side view showing another embodiment of the fork.

[Explanation of symbols]

2 Bogie 3 Fork 4 Railway wheel track surface support clamp 5, 6 Supporter 73 Railway wheel axle 74 Reduction gear

Claims (3)

[Claims] 1. A trolley having traveling wheels that can turn freely, a pair of left and right forks provided on the trolley so as to be able to move up and down, slide back and forth, and adjust the fork interval, and are provided at the tips of the forks, respectively. An unmanned guided vehicle having a rail wheel axle, comprising: a rail wheel track surface support clamp; and a supporter that supports ancillary devices such as a reduction gear attached to an axle of the rail wheel. 2. The unmanned guided vehicle according to claim 1, wherein the supporter can be raised and lowered, and the tip of the supporter is flat. 3. The automatic guided vehicle according to claim 1, wherein the supporter is slidable in the longitudinal direction of the bogie.