JP2021046768A - Bogie equipped with rail feeder - Google Patents

Abstract

To provide a bogie equipped with a rail feeder capable of curved running in order to improve a conventional bogie capable of only straight running.SOLUTION: A bogie 1 equipped with a rail feeder includes bogie elevating and rotating devices 2, 2 at four points of front-rear and right-left of the bogie 1. The bogie elevating and rotating device 2 includes: a rotating base 20 that is rotatably supported on the vertical axis with respect to the bogie 1; a sideways slide frame 21 that is arranged movably along a horizontal direction relatively with respect to the rotating base 20; a pair of outriggers 22A, 22B provided at both ends of the sideways slide frame 21; and a jack for lateral movement control 23 connected between the rotating base 20 and the sideways slide frame 21.SELECTED DRAWING: Figure 5

Description

The present invention particularly relates to a bogie provided with a rail feed device capable of traveling on a curved line.

For example, in the construction of a tunnel, various trolleys such as a seat tension trolley, a centre, and a scaffolding trolley are used according to each work process. As shown in Patent Documents 1 and 2 below, a pair of left and right rails are laid on the ground so that the wheels of the bogie run on the rails. In this case, the rail is divided into a plurality of rails along the longitudinal direction, and the dolly is run while the rails that have finished running are sequentially replaced in the forward side in the traveling direction as the dolly travels.

However, in the case of this method, for example, the rail is dragged and moved by a heavy machine such as a backhoe, and the rail position is finely adjusted by a bucket of the heavy machine.・ There are many risk factors such as fear of accidental pinching, and rail feed is not possible due to time constraints during work when slipping out, backfilling inverts, and transporting materials and equipment. There was a problem such as delay in work. Furthermore, there is a problem that a plurality of workers including a lookout are required.

Therefore, in recent years, a trolley equipped with a rail feed device has been proposed and put into practical use. This rail feed device will be described in detail with reference to FIGS. 21 to 24. It should be noted that FIGS. 21 to 23 show a state in which the rail is raised from the ground and moved forward in the traveling direction.

As shown in FIG. 21, wheels 60 are rotatably provided at the lower ends of the pair of left and right front columns 50A and 50B of the bogie 50 and the pair of left and right rear columns 50C and 50D, and are provided on the side portions thereof. An outrigger 51 is provided.

As shown in FIG. 23, vertical alignment members 62 and 62 are provided on both sides of the wheel 60, and a feed roller 63 fitted in a side recess of the rail 61 is provided at the lower end of these vertical alignment members 62 and 62. The rail 61 is provided so as to be separated from the ground and pulled upward when the outrigger 51 is extended to raise the carriage 50. The rail 61 is composed of a rail body 61A on which the wheels 60 travel and a feed rail 61B made of H-shaped steel integrally connected to the lower side of the rail body 61A. A side recess for fitting the 63 is configured.

On the other hand, in the rail feeding mechanism, as shown in FIG. 22, a roller chain 64 is stretched between the front end and the rear end of the rail 61, and a driving sprocket 66 meshing with the roller chain 64 is arranged. The prime mover sprocket 66 is driven by a motor. Therefore, when the bogie 50 is pulled upward by the outrigger 51, the rail 61 is sent forward in the traveling direction by driving the roller chain 64, and the outrigger 51 is contracted as shown in FIG. 24. The rail 61 is installed on the ground. After that, the wheels 60 travel on the rail 61 and the carriage 50 moves forward.

Japanese Unexamined Patent Publication No. 2000-291392 Japanese Unexamined Patent Publication No. 2003-35098

The rail feed mechanism has solved the problem of rearranging the rail to the front side in the traveling direction using a heavy machine or the like, but the rail feed mechanism can feed the rail only linearly. There was a problem that it could not be dealt with when the tunnel was curved because it could not be done.

Therefore, a main object of the present invention is to provide a bogie in which the rail feed device is compatible with curved running.

In order to solve the above problem, as the present invention according to claim 1, a pair of front and rear wheels are provided on the right side and the left side of the bogie, and an out trigger for raising and lowering the bogie is provided, and the bogie is raised by the out trigger. , In a bogie equipped with a rail feeding device that can suspend the rail so that it can move forward and backward and can feed the rail back and forth in the direction of travel.
The bogie is provided with a bogie elevating and rotating device at four locations on the front, back, left and right, and the bogie elevating and rotating device is provided with a rotary base rotatably supported around a vertical axis with respect to the bogie and a rotary base. The lateral slide frame provided so as to be relatively movable along the horizontal direction, the out triggers provided at both ends of the lateral slide frame, and the rotation base and the lateral slide frame are connected to each other. A bogie equipped with a rail feed device, which comprises a jack for lateral movement control, is provided.

In the invention according to claim 1, the trolley elevating and rotating devices are provided at four locations on the front, rear, left and right sides of the trolley. This bogie lifting and rotating device includes a rotating base that is rotatably supported around a vertical axis with respect to the bogie, and a lateral slide frame that is provided so as to be relatively movable along the horizontal direction with respect to the rotating base. Each of the outer triggers is provided at both ends of the lateral slide frame, and the lateral movement control jack is connected between the rotation base and the lateral slide frame.

Therefore, if it is desired to travel in a curved direction, the trolley is rotated by a predetermined amount in a plan view if the entire trolley is raised by the out trigger using the trolley elevating and rotating device according to the procedure described later. As a result, the direction of travel can be changed, and it becomes possible to cope with curved driving.

According to the second aspect of the present invention, the lateral slide frame is provided in a state of penetrating the rotating base, and both wall surfaces facing the side surface of the lateral slide frame inside the through hole of the rotating base. Is provided with a carriage provided with the rail feed device according to claim 1, which has a curved surface that is convex toward the lateral slide frame side.

The invention according to claim 2 shows a preferable example of a state in which the lateral slide frame is attached to the rotating base. Specifically, the lateral slide frame is provided so as to penetrate the rotating base, and both wall surfaces facing the side surface of the lateral slide frame inside the through hole of the rotating base slide sideways. It has a curved surface that is convex toward the frame side. Therefore, when the bogie rotates, it becomes easy to allow a shift difference of lateral movement with respect to the rotation direction.

According to the third aspect of the present invention, the trolley provided with the rail feed device according to any one of claims 1 and 2, wherein the lateral slide frame has a gate shape and the outriggers are supported on both support columns. Provided.

The invention according to claim 3 shows a suitable structural shape of the lateral slide frame and an mounting mode of the outriggers.

According to the fourth aspect of the present invention, as the lateral movement control jack, a repulsive double-rod type hydraulic jack is used, a cylinder is held by the rotary base, and both ends of the piston rod are supported on both sides. A carriage with the rail feed device according to claim 3 which is connected is provided.

The invention according to claim 4 shows a suitable structure of the lateral movement control jack and a mounting mode thereof.

As described in detail above, according to the present invention, it is possible to provide a bogie in which the rail feed device is compatible with curved running.

It is a cross-sectional view of the carriage 1 provided with the rail feed device which concerns on this invention. It is the side view. It is an enlarged view which shows the wheel part of the carriage 1. It is sectional drawing of the wheel part of the carriage 1. FIG. The carriage elevating and rotating device 6 is shown, (A) is a front view, and (B) is a side view. It is the plan view, (A) shows the state before rotation, and (B) shows the state after rotation. The procedure for lateral movement of the carriage 1 by the carriage lifting / rotating device 2 (No. 1) (A) to (C). The procedure for lateral movement of the carriage 1 by the carriage lifting / rotating device 2 (Part 2) (D) to (F). It is a figure which shows the yaw rotation procedure (curve running) of the bogie elevating rotation device 2. This is a curved traveling procedure (No. 1) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 2) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 3) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 4) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 5) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 6) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 7) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 8) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 9) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 10) of the carriage 1 by the carriage lifting / rotating device 2. This is a curved traveling procedure (No. 11) of the carriage 1 by the carriage lifting / rotating device 2. It is a cross-sectional view of the bogie 1 which shows the conventional rail feed device 50. It is the side view. It is a front view of the outrigger part (bogie rising state). It is a front view (the dolly descending state) of the outrigger part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

The trolley 1 provided with the rail feeding device according to the present invention is a trolley with a conventional rail feeding device that can only travel in a straight line so as to correspond to a curved traveling.

[About the rail feed device of the dolly 1]
First, the structure of the rail feed device of the bogie 1 will be described in detail with reference to FIGS. 1 to 4.

For example, in the case of tunnel construction, the rail feed device includes a seat trolley for laying a tarpaulin on a wall surface after excavation, a scaffolding trolley for reinforcing bar assembly, and a center for placing lining concrete. Applies to various types of trolleys.

A pair of left and right front columns 1A and 1B of the bogie 1 and a pair of left and right rear columns 1C and 1D have wheels 10 for traveling on the rail 11 on the lower ends or their vicinity, that is, on the right and left sides of the bogie, respectively. It is rotatably provided. As shown in detail in FIG. 4, the rail 11 is a feed rail 11B made of a rail body 11A on which the wheels 10 travel and an H-shaped steel integrally provided under the rail body 11A. It is composed of and.

As shown in FIG. 4, the vertical members 12A and 12B are provided on the wheel support portions on both sides holding the wheel 10, and the feed rollers 13A are provided inward at the lower ends of the vertical members 12A and 12B. , 13B are provided, and the feed rollers 13A and 13B are fitted into the side recesses of the feed rail 11B so that the rail 11 can be fed back and forth in the traveling direction.

A bogie elevating and rotating device 2, which will be described later, is provided at a position near the wheel 10. The bogie lifting / rotating device 2 is provided with outriggers 22A and 22B, and when the entire bogie 1 is raised by the outriggers 22A and 22B, the rail 11 is separated from the ground and pulled upward. ..

On the other hand, as shown in FIGS. 2 and 3, the feed mechanism of the rail 11 has chain end fixing portions 14A and 14B at the front end and the rear end of the rail 10, respectively, and these chain end fixing portions 14A. A roller chain 15 is stretched between the 14Bs via the direction changing gears 16, 16 ..., And a motor-driven driving sprocket 17 is provided in the middle so as to mesh with the roller chain 15. The tension of the roller chain 15 of the chain end fixing portion 14A can be adjusted by screwing back and forth of the screwed screw rod.

When the trolley 1 was pulled upward by the outriggers 22A and 22B, the rail 11 was sent forward in the traveling direction by driving the roller chain 15 and moved to a predetermined position (state in FIG. 2). Then, as shown in FIG. 1, the outriggers 22 are contracted and the rails 11 are installed on the ground. After that, the wheels 10 run on the rails 11 and the carriage 1 moves forward.

Although an example in which a roller chain method is adopted as the rail feed mechanism has been described, the rail 11 may be fed forward by driving the feed rollers 13A and 13B by a hydraulic motor, or the rail 11 may be fed. In addition to providing the rack gear, it is also possible to send out the rail by providing a pinion gear driven by a motor on the carriage side.

[About the bogie lifting and rotating device 2]
The conventional rail feed device has a structure that can only handle straight running, but in the present invention, the bogie 1 is provided with a bogie elevating and rotating device 2 in order to support curved running while using the rail feed device.

The trolley elevating and rotating device 2 is provided at four locations on the front, rear, left and right sides of the trolley 1, respectively. Specifically, as shown in FIG. 3, the side frames 1E are arranged along the traveling direction supporting the wheels 10 of the bogie, and straddle the side frames 1E at positions in the vicinity of the wheels 10. It is arranged like this. As shown in FIG. 5, the side frame 1E has a cross-sectional structure in which channel steels are back-to-back with a space open.

As shown in FIG. 5, the carriage elevating and rotating device 2 has a rotary base 20 rotatably supported around a vertical axis with respect to the carriage 1 (side frame 1E), and the rotary base 20. On the other hand, a lateral slide frame 21 provided so as to be relatively movable along the horizontal direction, out triggers 22A and 22B provided at both ends of the lateral slide frame 21, a rotating base 20, and the lateral slide. It is composed of a lateral movement control jack 23 connected to the frame 21.

More specifically, the rotary base 20 is composed of a shaft portion 20A and a base main body 20B, and is formed with respect to a circular hole 1e formed in the space of the side frame 1E formed by back-to-back channel steel. By fitting and supporting the shaft portion 20A, the shaft portion 20A is rotatably supported around the vertical shaft. The base body 20B is provided with a through hole 20b that penetrates in the horizontal direction. The rotation base 20 is rotated by human power, but it is also possible to attach a drive motor so that the rotation base 20 is rotated by the motor drive.

As the lateral slide frame 21, a gate-shaped frame composed of a horizontal frame 21A and pedestal frames 21B and 21C (corresponding to "posts" of the present invention) provided at both ends thereof is used. The horizontal frame 21A is provided in a state of penetrating the through hole 20b of the rotation base 20, and is provided so as to be relatively movable along the horizontal direction with respect to the rotation base 20. The movable amount of the lateral slide frame 21 is a range until the pedestal frames 21B and 21C on both sides collide with the base body 20B.

Outriggers 22A and 22B are provided for the pedestal frames 21B and 21C. In the through hole 20b of the rotation base 20, both wall surfaces 20c facing the side surface of the lateral slide frame 21 (side surface of the horizontal frame 21A) are convex toward the horizontal frame 21A side as shown in FIG. It is desirable that it has a curved surface. As shown in FIG. 6B, when the carriage 1 described later is rotated, it becomes easy to allow a shift difference in lateral movement with respect to the rotation direction. That is, as will be described later, the movement of the carriage 1 is in the direction of circular motion with the plane center point O of the carriage 1 as the center of rotation in a plan view. On the other hand, the movement of the rotating base 20 in a state where the bogie 1 is lifted by the outriggers 22A and 22B is a linear motion guided by the lateral slide frame 21, and therefore, as the bogie 1 rotates, it is between the two. Will cause a shift difference. In order to absorb this shift difference, for example, a play may be provided in the fitted state between the rotating base 20 and the horizontal slide frame 21 so that the shift difference is absorbed, or the rotating base 20 penetrates. The shift difference can be absorbed by fixing the sliding plate to the side surface of the hole 20b via an elastic easily deformable member such as a rubber plate, but in this embodiment, both wall surfaces 20c are formed by the horizontal frame 21A. By forming a curved surface that is convex toward the side, the shift difference is absorbed as shown in FIG. 6 (B). The convex curved surface has a curvature corresponding to the runout angle of the rotation base 20 (the same applies to the side frame 1E).

As the lateral movement control jack 23, a repulsive double-rod type hydraulic jack composed of a cylinder 23A and piston rods 23B and 23C is preferably used. The "reaction type" is a type in which oil inlets and outlets are provided on both the head side and the cap side, and oil flows in and out alternately to perform reciprocating motion. The "double rod type" is Piston rods project from both ends of the cylinder, and the rods at both ends are regarded as an integral piston and exhibit an integral behavior.

The lateral movement control jack 23 is provided so as to be connected between the rotary base 20 and the lateral slide frame 21. Specifically, the cylinder 23A is held by the rotary base 20, and both ends of the piston rods 23B and 23C are provided so as to be connected to the pedestal frames 21B and 21C of the lateral slide frame 21, respectively.

When the lateral movement control jack 23 is provided with independent jacks on each side, the interlocking of these jacks becomes complicated and hydraulic control is difficult. Control can be simplified.

The objects to be moved by the operation of the lateral movement control jack 23 are the lateral slide frame 21 and the rotation base 20. In the state where the outriggers 22A and 22B are contracted (non-functional state), the lateral movement control jack 23 moves the lateral slide frame 21 in the horizontal direction with the rotating base 20 as the fixed side. Further, in the state where the outriggers 22A and 22B are extended and the bogie 1 is raised (functional state), the outriggers 22A and 22B are set as the fixed side, and the bogie 1 is moved horizontally together with the rotation base 20 by the lateral movement control jack 23. Will be moved.

[Procedure for lateral movement of dolly 1]
Next, the lateral movement procedure of the carriage 1 by the carriage elevating and rotating device 2 will be described in detail with reference to FIGS. 7 and 8.

FIG. 7A shows a state in which the carriage 1 is capable of traveling on the rail 11 and the lateral slide frame 21 is located at the center of the rotation base 20. From this state, the outriggers 22A and 22B are moved in the horizontal direction together with the lateral slide frame 21. Specifically, by moving the pistons 23B and 23C of the lateral movement control jack 23 to the right side of the drawing by hydraulic drive, the lateral slide frame 21 is moved to the right side as shown in FIG. 7 (B). Let me. FIG. 7C shows a state in which the outriggers 22A and 22B are extended to raise the entire carriage 1 after the lateral slide frame 21 has been moved to the right side.

Next, with the entire carriage 1 raised by the outriggers 22A and 22B, the cylinder 23A of the lateral movement control jack 23 is moved by hydraulic drive as shown in FIG. 8 (D). By moving the cylinder 23A, the carriage 1 is moved to the right side together with the rotating base 20.

When the movement of the carriage 1 is completed, as shown in FIG. 8 (E), the outriggers 22A and 22B are contracted and pulled upward, and the pistons 23B and 23C of the lateral movement control jack 23 are hydraulically driven to the right of the drawing. By moving it to the right side, as shown in FIG. 7 (F), the lateral slide frame 21 is moved to the right side so as to be positioned at the center of the rotation base 20.

In the four trolley elevating and rotating devices 2 arranged on the trolley 1, the trolley 1 is moved according to the above work procedure, but in order for the trolley 1 to travel in a curve, the movement of the trolley 1 is a plan view of the trolley 1. Since the direction of circular motion is centered on the plane center point O, as shown in FIG. 9, each of the trolley elevating and rotating devices 2, 2 ... Arranged at four locations rotates the plane center point O of the trolley 1. The rotation is performed in a state where the direction of the trolley elevating and rotating device 2 is changed (rotated by ± θ) in the tangential direction of the circular locus L passing through the rotation axis (shaft portion 20A) of each rotation base 20 as the center. This makes it possible to rotate the trolley 1 in a plane. In the figure, the rotation direction of the bogie elevating and rotating device 1 is indicated as + rotation in the clockwise direction and − rotation in the counterclockwise direction.

[About the curve running procedure of dolly 1]
Next, the curve traveling procedure of the trolley 1 using the trolley elevating and rotating device 2 will be described in detail with reference to FIGS. 10 to 21. In each figure, (A) shows the flat state of the bogie, and (B) shows the operating state of the bogie lifting / rotating device 2.

FIG. 10 shows a state in which the carriage 1 can travel on the rail 11, and the lateral slide frame 21 is located at the center of the rotation base 20. Further, the outriggers 22A and 22B are in the raised state.

In order to change the direction (traveling direction) of the bogie 1 in order to travel on a curve, as shown in FIG. 11, the rotary base 20 is manually rotated to rotate the bogie elevating and rotating devices 2, 2, ... As described above, the amount of rotation of the trolley 1 is a circular motion direction with the plane center point O of the trolley 1 as the center of rotation in a plan view. Therefore, as shown in FIG. 9, each of the four locations is arranged. The trolley elevating and rotating devices 2, 2 ... change the direction of the trolley elevating and rotating device 2 in the tangential direction of the circular locus L passing through the rotation axis of each rotation base 20 with the plane center point O of the trolley 1 as the rotation center. (Rotate by ± θ). Since the amount of rotation is fixed for each location, it is desirable to provide a stopper at the rotation stop position.

Next, as shown in FIG. 12, if the outriggers 22A and 22B are extended and grounded on the ground, and then extended further to raise the trolley 1 together with the trolley elevating and rotating device 2, as shown in FIG. By moving the cylinder 23A of the lateral movement control jack 23 by hydraulic drive, the carriage 1 is moved to the right side together with the rotating base 20. By simultaneously performing this operation with the four carriage elevating and rotating devices 2, 2, ..., The carriage 1 can be rotated by a predetermined amount (rotation amount: φ) with the plane center point O as the rotation center.

Next, as shown in FIG. 14, the outriggers 22A and 22B are contracted so that the rail 11 is placed on the ground and the load of the carriage 1 is deposited on the rail 11.

Next, as shown in FIG. 15, by moving the pistons 23B and 23C of the lateral movement control jack 23 to the right side of the drawing by hydraulic drive, the lateral slide frame 21 is moved to the right side and the rotation base. It should be located in the center of 20.

As shown in FIG. 16, the bogie elevating and rotating base 2 is rotated to return to the original state, that is, in the direction perpendicular to the traveling direction of the bogie 1. The work up to this point is in a state where the traveling direction of the carriage 1 has been changed.

The work after this is the feed work of the rail 11. As shown in FIG. 17, when the outriggers 22A and 22B are extended and the bogie 1 is raised, the rail 11 is moved forward in the traveling direction by driving the roller chain 15 as shown in FIG. After moving to a predetermined position (state in FIG. 2), the outriggers 22A and 22B are contracted as shown in FIG. After that, as shown in FIG. 20, the carriage 1 moves forward by traveling on the rail 11.

[Examples of other forms]
(1) In the above embodiment, the present invention has been described by taking various trolleys used for construction of mountain tunnels as an example, but the present invention is not limited to trolleys for mountain tunnels, and can be applied to trolleys in general. is there.

1 ... trolley, 2 ... trolley lifting / rotating device, 10 ... wheel, 11 ... rail, 12A / 12B ... vertical member, 13A / 13B ... feed roller, 14A / 14B ... chain end fixing part, 15 ... roller chain, 20 ... Rotating base, 20b ... Through hole, 20c ... Both walls, 21 ... Lateral slide frame, 21A ... Horizontal frame, 21B / 21C ... Piston frame, 22A / 22B ... Outrigger, 23 ... Lateral movement control jack, 23A ... Cylinder , 23B / 23C ... Piston rod

Claims (4)

A pair of front and rear wheels are provided on the right and left sides of the bogie, and an outrigger for raising and lowering the bogie is provided. With the bogie raised by the outrigger, the rail is suspended so as to be able to move forward and backward, and the rail is advanced. In a dolly equipped with a rail feeding device that can be fed back and forth in the direction
The bogie is provided with a bogie elevating and rotating device at four locations on the front, back, left and right, and the bogie elevating and rotating device is provided with a rotary base rotatably supported around a vertical axis with respect to the bogie and a rotary base. The lateral slide frame provided so as to be relatively movable along the horizontal direction, the out triggers provided at both ends of the lateral slide frame, and the rotation base and the lateral slide frame are connected to each other. A bogie equipped with a rail feed device, which is characterized by consisting of a jack for lateral movement control. The lateral slide frame is provided so as to penetrate the rotating base, and both wall surfaces facing the side surface of the lateral slide frame inside the through hole of the rotating base are convex toward the lateral slide frame side. A carriage provided with the rail feed device according to claim 1, which has a curved surface. The carriage provided with the rail feeding device according to claim 1 or 2, wherein the lateral slide frame has a gate shape and the outriggers are supported on both support columns. The third aspect of claim 3, wherein a repulsive double-rod type hydraulic jack is used as the lateral movement control jack, the cylinder is held by the rotary base, and both ends of the piston rod are connected to the columns on both sides. A dolly equipped with a rail feed device.

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