JP2002030601A - Track truck system furnished with rail turnout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To swing a branching member 12 provided between a main way and a branch way of a travelling rail 1 of a track truck between a position on the main way side of a continuous line and a position on the branch way side of a chain line through a crankshaft, an intermediate link 22 and a link 24 on the branch way side by a driving motor 16 and to energize the crankshaft by a spring by holding and moving it with a play by a crank holder 18. SOLUTION: The spring energizes the branching member in opposite directions at the position of the main way side and the position of the branch way side as the crank holder rotates at 180 deg. between the position of the main way side and the position of the branch way side. The branch member takes a right position even when stopping precision of the driving motor is low. Consequently, it is possible to certainly shift the branching member between the position of the main way side and the position of the branch way side. Additionally, vibration due to travelling of the track truck is damped by the spring and hardly transmitted to the driving motor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tracked truck system using a linear motor truck, an overhead traveling vehicle, a tracked truck traveling on the ground, and the like, and more particularly to a rail branching device.

[0002]

2. Description of the Related Art In a tracked bogie system, it is convenient if a branch can be provided on a traveling rail. For this reason, it has been proposed to provide a movable branch member at the branch point of the traveling rail and swing it to switch between a position on the main road side and a position on the branch road side. In order to reliably switch the branching member between the position on the main road side and the position on the branch road side, it has been studied to swing the branching member using a fluid pressure cylinder such as air pressure or hydraulic pressure.

[0003]

2. Description of the Related Art In a hydraulic cylinder, piping is required, which imposes a heavy burden on installation, and there is a possibility of contamination due to exhaust air or contamination due to oil leakage. There is such a problem.

[0004]

A basic object of the present invention is to switch a branching member between a main road side position and a branch road side position reliably while switching the running rail of a tracked bogie system by driving a motor, and Even if the stopping accuracy of the vehicle is low, the influence on the position of the branching member is small, and vibration caused by the running of the tracked truck is hardly transmitted to the drive motor of the branching member. An additional object of the invention of claim 2 is to provide a specific configuration for that purpose. An additional object of the third aspect of the present invention is to make this force adjustable so that the branch member can be held at a position on the main road side or a position on the branch road side with an appropriate force.

[0005]

In the tracked bogie system provided with the rail branching device of the present invention, the traveling rail of the tracked bogie is branched by swinging the branching member between the main road side and the branch road side. In the system, a crank mechanism and a link mechanism are interposed between an output shaft of a motor and the branch member, and the crank mechanism biases the branch member in a reverse direction between a main road side position and a branch road side position. A biasing member is provided (claim 1).

Preferably, the crank mechanism is directly connected to an output shaft of a motor, a floating member accommodated in the crank holder, a crank pin connecting the floating member and the link mechanism, and A biasing member is provided, and the floating member is biased by the biasing member (claim 2). Particularly preferably, the link mechanism includes a link whose length can be adjusted (claim 3).

[0007]

According to the first aspect of the invention, the branch member is transmitted from the output shaft of the motor to the branch mechanism in the order of the crank mechanism and the link mechanism, and the branch member is moved between the main road side position and the branch road side position. To rock. The output shaft of the motor rotates, for example, 180 ° between these two positions, and the positions on the main road side and the branch road side, which are both ends of the swing, become dead points of the movement. After swinging the branching member from one position to the other position, the branching member may be further rotated in the same direction by, for example, 180 ° to return the branching member to the original position, or the rotating shaft may be moved in both the forward and reverse directions. For example, the branch member may be returned to the original position by swinging by 180 °. In each of these cases, it is referred to as rotation of the output shaft.

According to the first aspect of the present invention, the urging means is provided in the crank mechanism, and the urging direction is opposite when the branch member is at the position on the main road side and when the branch member is at the position on the branch road side. At both the road side position and the branch road side position, the branch member is pressed and positioned by the traveling rail or the like, and the branch member can be held at a correct position. Since the branch member is driven in the order of the link mechanism from the crank mechanism, when the branch member stops at the position on the main road side or the position on the branch road side, even if the direction of the output shaft slightly changes, the branch member is not moved. The position hardly changes. Further, when the tracked truck passes through the branch member, vibration is applied, but this vibration is attenuated by the urging means while being transmitted from the crank mechanism to the output shaft, so that no excessive force is applied to the output shaft. As described above, according to the first aspect of the present invention, since the branch member can be driven by the motor, equipment such as air pressure and hydraulic pressure is not required, and the branch member can be reliably switched between the main road side position and the branch road side position. , And no extra force is applied to the output shaft.

According to the second aspect of the present invention, the crank holder is directly connected to the output shaft of the motor and is rotated in accordance with the rotation of the output shaft. And the floating member and the link mechanism are connected by the crank pin. Therefore, when the crank holder rotates, the urging direction of the urging means is reversed,
The biasing direction can be easily reversed between the position on the main road side and the position on the branch road side. In addition, the vibration transmitted from the link member to the floating member during traveling of the tracked truck is attenuated while the floating member is floating in the crank holder and transmitted to the crank holder via the urging means. As described above, according to the second aspect of the present invention, the biasing direction of the biasing means can be reversed by the rotation of the crank holder, and the vibration generated by the traveling of the tracked truck is reliably applied before the vibration is applied to the output shaft of the motor. Can be attenuated.

According to the third aspect of the present invention, since the link mechanism is provided with the link whose length can be adjusted, the force for urging the branch member to the main road side position or the branch road side position by the urging means can be adjusted. The track bogie can travel smoothly at the branch.

[0011]

1 to 5 show an embodiment. 1 is a traveling rail of a tracked truck, 2 is an approach road, 4 is a main road, and 6 is a branch road. Here, it is assumed that the tracked truck travels from the approach road 2 side to the main road 4 or the branch road 6, but the main road 4 and the branch road 6 merge and the track bogie travels toward the approach road 2 side. You may do it. The traveling rail 1 includes a traveling surface 8 on which traveling wheels of the tracked truck travel, and has guide surfaces 10 on both sides of the traveling surface 8 to guide the guide rollers of the tracked truck.

If the rail branching device is shown as 11, it will be 12
Is a branching member that swings between two positions, a position on the main road side indicated by a solid line in FIG. 1 and a position on the branch road side indicated by a chain line, and uses both side surfaces of the branching member 12 as guide surfaces for branching. To guide the guide rollers of the tracked truck. Reference numeral 14 denotes a shaft, which forms the swing center of the branch member 12, and a drive motor 16 swings the branch member 12, for example, a motor in which a speed reducer and a brake are integrated. The drive motor 16 is, for example, 180
When rotated, the branch member 12 swings between a position on the main road side and a position on the branch road side.

Reference numeral 18 denotes a crank holder which accommodates a floating member serving as a crankshaft, and the crank pin 2
At 0, the intermediate link 22 is rotatably mounted, 24 is a branch road side link, one end of which is mounted on the shaft 14 to swing the branch member 12, and the other end is connected to the intermediate link 22 by a pin 26. Attach rotatably. A spring is provided in the crank holder 18 to bias a floating member serving as a crank shaft, and a crank mechanism is configured by the crank holder 18, the floating member, the crank pin 20, and the spring. The biasing direction of the spring is reversed by the 180 ° rotation of the crank holder 18, and presses the branch member 12 in the opposite direction between the position on the main road side and the position on the branch road side, as indicated by the white arrow in FIG. The intermediate link 22 and the link 24 on the branch road side constitute a link mechanism.

In FIG. 2, reference numeral 30 denotes a tracked truck using a linear motor. The truck has a carrier 34 in which a pair of bogies 32, 32 are connected by bogies. Each bogie 32 includes a running wheel 36 and a guide roller 38. Then, the vehicle travels on the traveling surface 8 with the traveling wheels 36 and travels on the traveling rail 1 by guiding the guide rollers 38 on the guide surface 10.

The tracked truck 30 of the embodiment has a traveling rail 1
This is a linear motor truck driven by a primary LIM motor on the side provided on the side, and the tracked truck 30 itself does not have a drive motor or the like. However, instead of the primary linear motor bogie on the ground, a primary linear motor bogie on the machine may be used, or another type of track bogie such as a so-called overhead running vehicle or a track bogie traveling on the ground on a track. good. Further, the branching member 12 in the embodiment guides and guides the guide roller 38 of the tracked truck 30. For example, the traveling wheel of the tracked truck travels on the upper surface of the branching member, and the guide roller guides the side surface. It is also possible to use something that does so.
As described above, the shape and structure of the branch member are arbitrary.

FIGS. 3 and 4 show a main part of the rail branching device 11. 3 shows, for example, a state in which the branch member is at a position on the main road side, and FIG. 4 shows a state in which the output shaft 40 of the motor is rotated, for example, 180 ° from the state in FIG. Show. 3 and 4, reference numeral 40 denotes an output shaft of a motor connected to the drive motor 16. The drive motor 16 has a reduction gear, a brake and the like integrated therein, and a crankshaft is provided in a stepped groove 42 provided in the crank holder 18. The floating member 44 as shown in FIG. 46 is a spring such as a spring coil,
There is a gap between the enlarged portion of the stepped groove 42 and the head of the floating member 44 on both the front and rear sides in the horizontal direction, so that the floating member 44 can slide by the bias of the spring 46.

The crank pin 20 is connected to the head of the floating member 44, and one end of the intermediate link 22 is attached to the crank pin 20 via the cap nut member 50. The pin 26 is connected to the other end of the intermediate link 22 by the cap nut member 51. Attach. As shown in FIGS. 3 and 4, the intermediate link 22 is provided with screw portions 52 and 53 of opposite threads on both sides, and
Is rotated to adjust the length, and the length of the intermediate link 22 is made variable. For this reason, the force which presses the leading end of the branch member 12 against the guide surface 10 can be adjusted, and the timing at which the branch member 12 comes into contact with the guide surface 10 can be adjusted.

In the embodiment, the spring 46 is connected to the crank holder 1.
8, but it is not always necessary.
Has one end rotating together with the output shaft 40 and the other end floating.
May be applied. Also crank holder 1
Reference numeral 8 may be any as long as a floating member 44 serving as a crankshaft is reciprocally mounted. Further, in adjusting the length of the intermediate link 22, cap nut members 50 and 51 are provided at both ends,
Instead of providing the threaded portions 52 and 53 at both ends of the intermediate link 22, the intermediate link may be constituted by a pair of screw rods, and these may be connected by a nut member to form an intermediate link.

FIG. 5 schematically shows the operation of the rail branching device 11. The motor shaft of the drive motor 16 is, for example, 180 °
When rotated or swung, the position of the crank pin 20 changes between the solid line position and the chain line position in FIG. 5, and the spring 46 rotates together with the crank holder 18 and
Is urged in the reverse direction by the half rotation of the drive motor 16. Accordingly, the intermediate link 22 changes between the two states of the solid line and the chain line in FIG. 5, and the link 24 on the branch road side connected by the pin 26 also changes between the state of the solid line and the state of the chain line. Since the branch member 12 swings together with the link 24, when the motor shaft of the drive motor 16 rotates, for example, 180 °, the branch member also swings between the position on the main road side and the position on the branch road side.
And at the position of the branch member on the main road side and the position on the branch road side,
The crank pin 20 is at the dead center of the movement and the drive motor 16
Even if the stopping accuracy is low, the positional accuracy of the branching member 12 is not affected. Further, as shown in FIG. 5, the branch member is urged in the opposite direction between the position on the main road side and the position on the branch road side, so that it is reliably pressed at any position so as to maintain the correct position. When the length of the intermediate link 22 is adjusted, the branch member can be adjusted to fit the traveling rail with a desired force at the position on the main road side and the position on the branch road side.

Therefore, the following effects can be obtained in the embodiment. The branch member 12 is pressed with an appropriate pressing force at both the main road side position and the branch road side position. Even if the stop accuracy of the drive motor 16 is low, the position of the branch member 12 is not affected. Since the branch member 12 is held at a predetermined position with an appropriate pressing force, the running of the tracked truck can be smoothly guided, and as a result, the vibration applied to the branch member 12 from the tracked truck is reduced. The vibration applied to the branch member 12 from the tracked truck is attenuated by the spring 46, so that no excessive force is applied to the motor shaft.
Since the branching device 11 is driven by a motor, no equipment such as hydraulic pressure or air pressure is required, and installation, maintenance, and test operation are easy.

[Brief description of the drawings]

FIG. 1 is a plan view showing a rail branching device in a tracked bogie system according to an embodiment.

FIG. 2 is a plan view showing a tracked truck traveling on rails.

FIG. 3 is a sectional view of a main part of the rail branching device.

FIG. 4 is a sectional view of a main part of the rail branching device, showing a state where the crank is rotated by 180 ° from FIG. 3;

FIG. 5 is a diagram schematically showing a movement mechanism of the rail branching device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Running rail 2 Entry road 4 Main path 6 Branch road 8 Running surface 10 Guide surface 11 Rail branching device 12 Branch member 14 Shaft 16 Drive motor 18 Crank holder 20 Crank pin 22 Intermediate link 24 Branch link side link 26 Pin 30 Tracked truck Reference Signs List 32 bogie trolley 34 carrier 36 running wheel 38 guide roller 40 output shaft 42 stepped groove 44 idler member 46 spring 50, 51 cap nut member

Claims (3)

[Claims] 1. A system in which a traveling rail of a tracked truck is branched by swinging a branch member between a main road side and a branch road side, wherein a system is provided between a motor output shaft and the branch member. A rail branching device including a crank mechanism and a link mechanism interposed therebetween, wherein the crank mechanism is provided with an urging member that urges the branch member in a reverse direction between a position on the main road side and a position on the branch road side. Tracked bogie system equipped with. 2. A crank holder directly connected to an output shaft of a motor, a floating member housed in the crank holder, a crank pin connecting the floating member and the link mechanism, and A tracked truck system provided with the rail branching device according to claim 1, wherein a biasing member is provided, and the floating member is biased by the biasing member. 3. The track bogie system with the rail branching device according to claim 2, wherein the link mechanism includes a link whose length can be adjusted.