JPH04202902A - Bend forming driving unit of branch girder guide ring receiver - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a drive device for forming a curved guide wheel receiving portion of a track girder, and particularly to a mole rail having guide wheel receiving portions at upper and lower positions on both sides of the track girder. Concerning branch track girders.

[Prior Art] In a conventional device, for example, as described in Japanese Utility Model Publication No. 56-1761, a guide wheel receiver provided on the side of a girder is used to simultaneously move a movable rod that moves horizontally using a directional cam. The guide wheel holder was designed to be curved by a power cylinder installed inside. Also, for example, JP-A-61-
In the method described in Japanese Patent No. 75102, a guide wheel receiver is continuously provided locally between the branches, and the guide wheel receiver is arranged in an approximate manner according to the amount of movement of the bar during the switching operation of the branch. It was intended to be curved.

[Problem to be solved by the invention] In the former of the above-mentioned prior art, one
Since the actuator has a configuration with two power sources, it is difficult to maintain and inspect the actuators, and there are a large number of actuators, which poses problems in terms of safety and cost. In the latter case, only the joint between the girders has a guide wheel bearing that is formed into an approximate curved shape, which increases the lateral vibration given to vehicles passing through the junction, and also increases the damage caused by the curved part itself. There were problems such as the bottle connection surface becoming loose.

The object of the present invention is to arrange the power source for driving the curved shape of the guide wheel bearing outside the girders, and to extend the connecting shaft between the girders.
The purpose is to reduce the number of actuators with short maintenance return cycles and to simplify the structure in order to reduce maintenance time.

[Means for solving the problem] In order to achieve the above purpose, for example, in a branch consisting of three digits, one
In the installation of ~2 actuators or the branching of 4 digits, 1 to 4 actuators are connected by a connecting shaft to improve the known example of 1 actuator of 1 digit. Furthermore, in order to reduce the number of actuators, the power source for digit conversion can be shared, and the actuator dedicated to driving curved forming can be abolished. The opening drive device will be located under the girder to facilitate maintenance and inspection.

[Function] As shown in Fig. 7, the connecting shaft that runs between the girders is arranged so that the crankshaft with the cam connecting rod is placed close to the end of the girder, and the connecting shaft is placed in the center of girder 11. The length of the connecting shaft relative to the branch conversion angle (α) is L/2M! The difference is very small, and the thrust can be applied to the crankshaft by connecting adjacent girders and rotating a lead screw built into a single actuator or a girder conversion power device installed under the girder. Therefore, there is no malfunction in applying rotational force to the cam arranged within the digit.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1.2 shows a branching device 13a having three branching girders for mole rails, lla to C. FIG. 3 shows an example of a 1la-d configuration with four branches. This branch is mainly used for the main line, and as shown in Figure 6, the inside of the branch has a known component structure, and there are two on both sides of the branch.
Guide wheel supports 22 are arranged above and below, and a moving rod 23 is moved left and right by the rotation of a cam 21, so that the guide wheel support 22 is formed into a curved shape. Each of the branched beams 1la-d is connected by a T-shaped pin 1f, allowing horizontal and vertical movement for conversion. As an example of branch conversion, 28 carts are moved on 29 rails by a rack and pinion type branch horizontal drive device 38 shown in FIG. Next, the curve forming drive device for the guide wheel receiver 22 will be explained. 12 is an actuator such as an electric cylinder. What is indicated by the dotted line 14 is an actuator for the preliminary stroke. Reference numeral 18 denotes a crankshaft, which consists of bearings 24 and levers 26a to 26C, and is installed at a point 30 below the beam near the end face of the branch. Reference numeral 15 denotes a connecting shaft, which is positioned below the T-shaped pin 17 when the branch is in a straight line, and extends between the girders. 25 is a cam connecting rod that applies rotational force to the cam 21, and 27 is a connecting rod between the upper and lower cams. Fig. 5 is an enlarged view of the drive system shown in Fig. 3.
8b' without 25 rods and with 16 pull rods added.

What is shown in FIG. 7 is an example in which a girder conversion drive device 38 is arranged under the girder 30, where 31 is a motor and 32 is a hanging speed reducer. The actual digit conversion is of the rack and pinion type seen in known examples, and 34 is a rack rail, 35 is a pinion, and 33 is a drive shaft. 37 is a screw type spindle, and thrust is given to the spindle 37 by the rotation of the ball screw 36 set in the reducer, and the rotational force is transmitted to the cam 21 via the crankshaft 18, resulting in an order change. The guide wheel holder can be formed into a curved shape by mechanical interlocking at the same time as the movement.

In the above configuration, a bend angle (α) is formed between the girders as shown in FIG. 4 due to the change of the branch girders, but since the crankshaft 18 is at the end of the girder and the connecting shaft 15 is at the center of the girth, , the difference in length between the straight state and the converted state of the connecting shaft when it is passed through the girder is very small (L/2"=fl), so there is no problem when the connecting shaft is passed through the girder. Although the main actuator of 12 is an electric cylinder, it is not limited to this and may be a hydraulic or pneumatic cylinder.Furthermore, if the actuator is used as a power source for digit conversion, as shown in Figure 7, the parts can be This has the effect of further reducing the number of wheels and making maintenance easier.Also, since a single actuator can be used to curve the wheel holder of multiple digits, it has the effect of being advantageous in terms of cost and maintenance. A pre-standby actuator is incorporated into the curve forming drive system, and switching operation can be performed when one motor fails, which has the effect of improving safety.

〔Effect of the invention〕

According to the present invention, the lower device has a curved actuator for the branched guide wheel holder, and the number of actuators is less than the number of branches, so maintenance is easy and the price is low. effective.

[Brief explanation of the drawing]

FIG. 1 is a side view of a branching device in an example of a three-branch configuration according to an embodiment of the present invention, FIG. 2 is a plan view at the A position of FIG. A side view of the branching device in a branched configuration example, FIG. 4 is a plan view illustrating the girder bending angle when converting the branching device, and FIG. 5 is a component configuration of the forming drive device in the girder open position in part A of FIG. 3. FIG. 6 is a vertical cross-sectional view showing the inside of the girder at the position shown in FIG. 3, and FIG. 7 is a perspective external view showing the same girder conversion drive device in which the power source for forming the molding drive is used. 11a to 1id--branched, 12----
--Actuator, 15-----Series connection shaft, 18-
------- Crankshaft, 20 ----- One molded drive device, 22 ---- One guide wheel bearing, 32 ---- One reduction gear,
37----- Screw Bindle'; 41 Fig. 6--Series glaze Fig. 2/8A Fig. 3 Fig. 44' Fig. 45 Fig. O 6

Claims (1)

[Scope of Claims] 1. In a vehicle in which a plurality of branch girders are horizontally movably connected and a vehicle guide wheel receiver installed on the side of the girder is bent at the time of conversion, a forming drive for bending the guide wheel receiver. A branched guide wheel receiving curved forming drive characterized in that a connecting shaft is inserted between a plurality of said branches, and the number of actuators for forming forming power is reduced compared to the number of branches and incorporated into the drive system. Device. 2. Adjacent girders are connected by a forming drive connecting shaft, characterized in that a crankshaft having a cam connecting rod is arranged close to the end of the girder, and the directly connected shaft is arranged at the center of the width of the girder. A drive device for forming a curved guide wheel with a branched guide wheel. 3. A branched guide in which adjacent girders are connected by a direct-coupled shaft for forming drive, characterized in that a plurality of actuators are provided on one system of directly-coupled shafts to enable switching operation in the event of a failure. Wheel support curve forming drive device. 4. The branched guide wheel receiving curve forming drive device according to any one of claims 1 to 3, wherein the forming drive power source is also used as a branched conversion power source.