KR20040040676A - Switching device for track vehicle - Google Patents

Abstract

PURPOSE: A branch unit for a railcar is provided to restrict the left movement and the right movement of the railcar by using horizontal guide wheels and branch wheels for catching a brake rail. CONSTITUTION: A branch unit for a railcar includes a guide way(8), two couples of horizontal guide wheels(6a-6d), and a plurality of branch wheels(7a,7b). The guide way(8) is used for performing a horizontal guide operation, a branch operation, and an emergency braking operation. The horizontal guide wheels(6a-6d) are installed on a lateral part of a main frame(10) in order to catch a plurality of horizontal guide and branch rails and guide the railcar. The branch wheels(7a,7b) are installed at both ends of the branch arms in order to perform the horizontal guide operation and the branch operation.

Description

Branching device for track vehicle {SWITCHING DEVICE FOR TRACK VEHICLE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching device for a tracked vehicle, and more particularly, to a device for guiding a vehicle by selecting a desired direction by a branching device (a branch selector) mounted on the vehicle, rather than moving the track for branching of the vehicle.

More specifically, the invention relates to a branching device for track vehicles having a branching device for branching in a desired direction from a branching point and a braking device for stopping at a desired location of the vehicle.

In the future, with the rapid development of science and technology and the improvement of living standards, passenger cars with no pollution are expected to become commonplace, and a typical passenger car is a railroad car that runs on elevated tracks, which are constructed at a constant height on the ground. Such a system using a tracked vehicle is commonly referred to as a Personal Rapid Transit (hereinafter referred to as a PRT system). The PRT system is equipped with a branching device for branching to a branch to be operated at a branching point and a braking device for stopping at a desired place.

In general, trains and tracked vehicles operate in a state where they cannot escape the track, so in order to change the position from one track to another track, it is not by a switching function of the body like a car, but by a special action on the track. Switched Conventional branching devices typically consist of three parts: points, crossings and leads.

As described above, the general branching method of the tracked vehicle is shown well in FIG. 1. FIG. 1 is a general explanatory diagram of a method of guiding a vehicle in a desired direction at a crossroad by using a branching device mounted on the vehicle instead of moving the track among the branching methods of the tracked vehicle. The vehicle which wants to branch to the right side (A) of the vehicle running on the track pulls the lateral guidance and the branch rail (5) installed on the right guideway (8) of the vehicle through the branch device (7a) mounted on the right side of the vehicle. By pulling, the vehicle is guided to the right and, on the contrary, the vehicle which wants to branch to the left (B) leads the vehicle to the left in the same way.

2. Description of the Related Art Conventional branching apparatus for a track vehicle for a PRT system is disclosed in FIGS. 2, 3 and 4.

In the conventional branching apparatus, as shown in FIG. 2, a cabin is seated in a guideway 8 having an upper opening and having a substantially rectangular space, and main wheels 9a and 9b are disposed below the main frame 10 of the cabin. It is located, it is a way to branch by walking the wheel to the branch guide rail installed in the guideway by moving the auxiliary auxiliary wheels (1a, 1b) provided on the side of the vehicle.

In the conventional method, since the subsidiary wheels 1a and 1b and the lateral guide wheels 2a and 2b are installed independently, the number of wheels and accessory equipments installed in the vehicle increases, and the guide rails installed in the guideways are also provided. It must be installed in the direction opposite to each guide wheel.

The conventional branching device shown in FIG. 3 is a branching method using magnetic attraction of the electromagnets 3a and 3b instead of the branching auxiliary wheel. To this end, magnetic materials 4a and 4b are installed on the sidewalls of the guideway 8 in parallel with the electromagnets 3a and 3b. However, such a branching method by magnetic attraction has a disadvantage in that the system stability (fail-safe) is insufficient.

The conventional branching device shown in FIG. 4 uses a wheel and a braking device for lateral guidance and branching in one rail. However, due to the position of the rail for using the wheel and the braking device for lateral guidance and branching together, the cross section still has a disadvantage in that it does not secure a great advantage in terms of economics and the previous structures.

The present invention has been made to solve the problems of the conventional branching device as described above, by mounting a branch wheel on the branch arm connected to the branch actuator and a lateral guide wheel on the vehicle body to branch and guide the vehicle of one rail The purpose of the present invention is to provide a branching device for an orbital vehicle having excellent system stability by providing an emergency braking device using a hydraulic system having excellent stability, and improving economic efficiency by simplifying the structure of the guideway.

1 is a plan view for explaining the branching mechanism of a general track vehicle.

2 is a cross-sectional view of a conventional transverse guide and branching device.

3 is a cross-sectional view of another conventional transverse guide and branching device.

Figure 4 is a front sectional view of the transverse direction guide and branching device in a general driving state according to the present invention.

Figure 5 is a plan view of the transverse direction guide and branching device in a general driving state according to the present invention.

6A is a perspective view showing a state in which the branching device according to the present invention branches to the left.

6B is a perspective view showing a state in which the branching device according to the present invention branches to the right.

7 is a front sectional view of a conventional emergency braking device.

Figure 8 is a front sectional view of the emergency braking device mounted integrally with the branching device for track vehicles in accordance with the present invention.

※ Explanation of symbols for main parts of drawing

1a, 1b: branch auxiliary wheel,

2a, 2b: conventional lateral guiding wheel,

3a, 3b: electromagnet,

4a, 4b: magnetic material,

5a to 5d: conventional transverse guide and branch rail,

6a to 6d: lateral guidance wheel of the present invention,

7a to 7d: branching wheel,

8: guide way,

9a, 9b: main wheel,

10: main frame,

11: branch actuator,

12a, 12b: branch arm,

13a, 13b: conventional brake caliper,

16a, 16b: conventional lateral guiding and branching wheel,

17a, 17b: main wheel shaft,

18: cancer,

19a, 19b: main wheel support,

51: rotation guide arm,

91a, 91b: brake caliper of the present invention,

121: rotation guide,

122: hydraulic motor,

123: worm,

124: worm wheel,

125: Bevel Gear

The track device branching device of the present invention for achieving the above object,

One pair extends downward from the upper surface of the guideway, the other pair protrudes from the sidewalls of the guideway and extends upwards with the transverse guides and branching rails, 90 ° from each other. A side of the track device for a track vehicle consisting of a pair of branch arms that do not touch the lateral guide and the branch rail in a horizontal state, comprising: a guideway for performing lateral guidance, branch, emergency braking; Two pairs of lateral guide wheels mounted on the side of the main frame to guide the vehicle while holding the lateral guide and the branch rail; and branch wheels mounted at both ends of the branch arm and connected to the main frame. Is achieved as a branching device for a tracked vehicle.

Preferably, the branch wheel of the branching device for the tracked vehicle travels in a state in which the lateral guide and the branch rail are squeezed from both sides together with the lateral guide 고정 fixed to the main frame according to the branching direction of the vehicle. .

The branch arm of the branching device for a track vehicle of the present invention is preferably provided with a rotation guide arm for rotating and linearly moving the branch arm.

The track device for branching vehicle of the present invention is preferably installed between the rotation guide arm, it further comprises a worm gear for transmitting a rotational force to the rotation guide arm.

The track device for branching vehicle of the present invention preferably further comprises a hydraulic motor for driving the worm gear.

The emergency braking of the branching device for a track vehicle according to the present invention is characterized in that emergency braking is performed, including a brake rail forming a sidewall of the guideway or a part of the sidewall and a brake caliper holding the brake rail below.

The brake rail of the branching device for a track vehicle of the present invention is the same as the lateral guide and the branch rail, and preferably has the feature of simultaneously performing the functions of the lateral guide, the branch and the emergency braking.

The branching device for a track vehicle of the present invention preferably prevents the branch rail and the brake caliper on the opposite side from escaping from the brake rail at the same time so that the brake caliper and the brake rail do not collide, and has a pair of left and right brake calipers at the rear of the vehicle. It is preferable to have four brake calipers, one pair left and one right, in front and rear of the vehicle.

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

Figure 5 is a front sectional view of the transverse direction guide and branching device of the general driving state according to the present invention, Figure 6 is a plan view of the transverse direction guide and branching device of the general driving state according to the present invention.

As shown in FIG. 5, the side wall of the guideway 8 also serves as a rail for lateral guidance and branching. The main frame 10 is equipped with main wheels 9a to 9d and four pairs of lateral guiding wheels 6a to 6d according to the present invention, and a pair of branching wheels 7a to 7d according to the present invention. It is connected to the actuator 11 and the mainframe 10 via an arm.

The lateral guiding wheels 6a to 6d are driven while holding the lateral guiding and branching rails 5a to 5d, and the branching wheels 7a to 7d are selectively selected depending on the direction in which the track vehicle intends to branch. As a result, the transverse guide and the branch rails 5a to 5d are held. In the general driving section, four lateral guide wheels guide the vehicle in the traveling direction with only one branch wheel kept at a very small distance from the branch rail to ensure safety in case of system failure. This is a distinctive feature from the conventional methods, and the branch wheel is spaced apart from the branch rail even when the branch reference ratio is completed before entering the branch section.

In the branching section, branching in a desired direction is induced by using a branch actuator and a rotation guide arm mounted on the branching arm described later. Using the rotation guide arm and worm gear that can guide the rotational and linear motion of the branch arm, when the vehicle enters the division-based ratio section, the branching wheel opposite to the branching direction is pushed out so as not to contact the branching rail, and the branching direction It pulls the diverging wheel of and rotates to grasp the branch rail to guide the branch safely.

At this time, in the state where the branch wheel is completed, the branch wheel maintains a small distance from the branch rail. When the entrance is started when the branch section is reached, the interval is reduced by centrifugal force, and finally the branch rail is held to branch. This means that if one branch wheel always runs with a branch rail, there is a slight play in consideration of problems such as durability, vibration, straightness and efficiency.

7A is a perspective view showing a state in which the branching device according to the present invention branches to the left, and FIG. 7B is a perspective view showing a state in which the branching device according to the present invention branches to the right.

12 shows a branch rail link assembly for inducing branching of a vehicle. The configuration of the branch rail link assembly is as follows.

The right branch rail 7a is connected to each other by the branch arm 12a, and the left branch wheel 7b is connected to each other by the other branch arm 12b. Both branching wheels are mounted to maintain 90 ° to each other. Each of the branch arms 12a and 12b is provided with a rotation guide arm 51 to guide rotational and linear motions of the branch arms 12a and 12b, respectively. The rotation guide 121 guides the rotation guide arm 51 to induce rotation and linear motion.

In the present invention, using the hydraulic motor 122 that is reliable as a device for rotating the branch wheel link assembly in the desired direction, and easy to establish a failure countermeasures to increase the stability of the system. In addition, the worm gears 123 and 124 constituted by the worm 123 and the worm wheel 124 were mounted in preparation for stopping the system when the system was completed or not completed. When an emergency occurs, the pressure valve of the hydraulic circuit to which the hydraulic motor 122 belongs detects this and not only shuts off the inlet and outgoing pipes of the hydraulic motor 122, but also the input side is not affected by the load on the output side of the worm gears 123 and 124. The stability of the system was secured using the

The branching process of the vehicle according to the operation of the aforementioned branch wheel link assembly is as follows.

First, when reaching the diverging section of the vehicle in progress, the hydraulic motor 122 operates to rotate the worm 123 through the bevel gear 125 connected to the shaft of the hydraulic motor 122, the worm 123 The rotational movement of) is reduced and transmitted by the worm wheel 124. The bevel gear 125 was used to minimize detachment of the box incorporating the hydraulic motor 122 into the branch wheel assembly so that the vehicle body can be easily detached.

The rotational force generated by the operation of the worm gears 123 and 124 is transmitted to the rotation guide arm 51. As the rotation guide arm 51 rotates, the branch arms 12a and 12b connected to the rotation guide arm 51 perform linear motion and rotational motion. Since the branch arms 12a and 12b on both sides are kept at 90 ° to each other, when the branch wheel connected to one branch arm catches the branch rail, the branch wheel connected to the other branch arm does not touch the branch rail. Such an operation is made possible by the rotation guide arm 51 rotating the branch arms 12a and 12b and inducing a linear motion to push and pull the branch arms 12a and 12b.

FIG. 7B illustrates an operating state of the branching device when trying to branch to the right side as opposed to FIG. 7A. In this case, only the diverging wheel touching the branch rail is different, and the other operation principle is the same as the operation principle shown in FIG. 7A.

8 shows a conventional emergency braking device used for a tracked vehicle. The conventional emergency braking device is provided with brake calipers 13a and 13b on both sides of the main frame, so as to hold the brake rail protruding from the side wall of the guideway. This conventional emergency braking device is difficult to maintain a constant positional relationship between the brake rail and the caliper (13a, 13b) by the vertical movement of the vehicle, deterioration of the braking performance while the foreign matter invaded from the outside accumulate on the brake rail There was a back.

FIG. 9 is a view illustrating a branching device for an orbital vehicle according to the present invention and an emergency braking device mounted integrally therewith for solving the problems of the conventional emergency braking device as described above. As shown in FIG. 9, in the emergency braking device according to the present invention, the brake calipers 91a and 91b have separate actuators. This is to operate independently in case of emergency.

The brake rail is not provided separately, and the lateral guides and the branch rails 5a to 5d simultaneously perform the functions of the brake rail. The brake calipers 91a and 91b hold the brake rails 5a to 5d. In the emergency braking device according to the present invention, since the lateral guide wheels 6a to 6d and the branch wheels 7a to 7d of the vehicle hold the brake rails 5a to 5d, the movement of the vehicle in the left and right directions is limited. . In addition, since the calipers 91a and 91b hold the brake rails 5a to 5d up and down even when the vehicle moves up and down, the brake rails 5a to 5d and the calipers 91a and 91b It can function as emergency braking without collision.

The branching device for track vehicles, which combines the functions of lateral guidance, branching and emergency braking according to the present invention, is equipped with a guiding wheel on the branching arm connected with the lateral guidance and the branch rail and the worm gear to make branching and guidance of the vehicle extremely simple. It is economical and safe by implementing through guideway of structure.

In the emergency braking apparatus according to the present invention, since the lateral guide wheel and the branch wheel of the vehicle hold the brake rail, the movement in the left and right directions of the vehicle is limited. In addition, since the caliper grips the brake rail up and down even when the vehicle moves up and down, the brake rail and the caliper can exhibit the function of emergency braking without collision.

Claims (10)

The pair extends downward from the upper surface of the guideway 8, and the other pair protrudes from the sidewall of the guideway 8 and maintains 90 ° with the transverse guide and branch rails 5a to 5d extending upward. In this case, when one side is in a vertical state, the other side is in a horizontal state, and includes a pair of branch arms 12a and 12b which do not touch the lateral guides and the branch rails 5a to 5d. , A guideway 8 for performing lateral guidance, branching, and emergency braking; Two pairs of lateral guide wheels 6a to 6d mounted to the side of the main frame 10 to guide the vehicle while holding the lateral guides and the branch rails 5a to 5d; and And a branch wheel (7a to 7d) attached to both ends of the branch arms (12a, 12b) connected to the main frame (10), and serves as a lateral guidance and branching function. The method of claim 1, The branching wheels 7a to 7d are selectively provided with the lateral guides 6a to 6d fixed to the main frame 10 by the lateral guides and the branching rails 5a to 5d according to the branching direction of the vehicle. Branching device for a track vehicle, characterized in that traveling in a state that is pressed in both sides. The method of claim 1, And the branch arm (12a, 12b) is provided with a rotary guide arm (51) for rotating and linearly moving the branch arm (12a, 12b). The method of claim 3, wherein And a worm gear (123, 124) installed between the rotation guide arms (51) to transmit rotational force to the rotation guide arms (51). The method of claim 4, wherein And a hydraulic motor (122) for driving the worm gear (123, 124). In the track vehicle forklift having an emergency braking device, Brake rails 5a to 5d which form a sidewall of the guideway 8 or are part of the sidewalls; And And a brake caliper (91a, 91b) holding the brake rails (5a to 5d) below, whereby emergency braking is performed. The method of claim 6, The brake rails (5a to 5d) are the same as the lateral guides and the branch rails (5a to 5d), and the branching device for a track vehicle, characterized in that simultaneously performs the functions of lateral guidance, branching and emergency braking. The method of claim 6, A branching device for a tracked vehicle, wherein the branching rail and the brake caliper on the opposite side of the vehicle exit simultaneously from the brake rail so that the brake caliper and the brake rail do not collide. The method of claim 6, And a pair of brake calipers at the rear of the vehicle. The method of claim 9, A branching device for a track vehicle, comprising four brake calipers, one pair left and one right in front and rear of the vehicle.