JPH0771937B2 - Electric switch and switch controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to converting a tongue rail between a localization position and an inversion position at a branching device of a line, and an operation for performing a conversion operation by connecting to the tongue rail. An electric switching machine provided with a can and a lock can for restraining the tongue rail, a drive mechanism for converting operation provided inside thereof, and the operation device being converted by a conversion device provided outside thereof. The present invention also relates to a roll control device for the electric roll machine.

"Prior Art" Conventional electric switching machines include, for example, those shown in Figs. 10 and 11.

That is, it is general that the buffer clutch 3 is interposed in the middle of the system of the drive mechanism 2 for converting the operation rod 1.

This clutch 3 is interfered on the way and slips when the operation rod stops even though it is driven, so as to prevent the electric motor 4 from being burned due to an excessive load, and at the end of conversion. This is to buffer the shock of.

[Problems to be Solved by the Invention] However, in the conventional electric turning machine equipped with the clutch 3, the slip action of the clutch 3 must be regularly inspected and adjusted in order to stabilize it, and further In the long term, the friction plates need to be regularly replaced and the oil needs to be replaced, which is not only complicated but also requires manual labor to increase the maintenance cost.

The present invention has been made in view of such conventional problems, and an object thereof is to provide an electric switching machine and a rolling control device that operate quickly and reliably and are easy to maintain. .

"Means for Solving the Problem" The gist of the present invention for achieving such an object is to convert a tongue rail into a localization and an inversion with a turnout of one line. A movement can (30) for converting and a lock can (5) for restraining the tongue rail.
0) and a drive mechanism (12) for conversion operation inside thereof, and a conversion device (35) provided outside thereof.
In the electric switching machine configured to switch the operating rod (30) by means of the electric drive mechanism (12), the drive mechanism (12) of the operating rod (30) is rotationally driven by the electric motor (M) and pivots in the rolling device case. A supported conversion gear (20), a rack member (25) meshed with the conversion gear (20) and supported by a rolling machine case so as to be linearly movable in the same direction as the operating rod (30); A cushioning mechanism (2) by a spring member (22) interposed so as to be capable of linear motion transmission in a drive transmission path between the rack member (25) and the operation rod (30).
1) An electric switching machine comprising:

2. The rolling control device for an electric rolling machine according to Item 1, wherein the electric motor (M) for performing a switching operation is operated by a three-phase alternating current, and a motor for driving the electric motor (M). A motor drive unit (62) having a drive unit (62) and a roll control unit (63) for controlling the motor drive unit (62), and receiving the instruction of the roll control unit (63), It is characterized in that the connection to the electric motor (M) is cut off in response to the completion of the conversion of the operation rod (30) while the power supply line on the electric motor (M) side is short-circuited to perform dynamic braking. Rolling control device.

3. The rolling control device for an electric rolling machine according to Item 1, wherein the electric motor (M) for performing a conversion operation is a brushless type that operates by a three-phase alternating current, and drives the electric motor (M). The motor drive section (62) has a motor drive section (62) and a tip control section (63) for controlling the motor drive section (62), and the motor drive section (62) receives an instruction from the tip control section (63). The power supply line on the electric motor (M) side is short-circuited to perform dynamic braking while disconnecting the connection to the electric motor (M) in response to the completion of conversion of the operation rod (30). It exists in the rolling control device.

"Action" When the conversion gear is rotationally driven by the electric motor for the conversion operation, the conversion gear moves the rack member and drives the operation rod through the buffer mechanism. When the moving can is driven, the tongue rail is converted by the conversion device.

When it is converted in the reverse direction, it is converted in the reverse order.

The motor drive unit, which receives the instruction from the roll control unit during the conversion operation, cuts off the power supply to the electric motor that operates by the three-phase AC in response to the completion of the conversion of the operation system, and further shorts the power supply line on the electric motor side. Then, dynamic braking is performed to reduce inertial force and stop without impact.

If a small stone is caught between the tongue rail and the main rail, and if the operation bar is interrupted while it is being driven but stops in the middle of conversion, it will be placed between the rack member and the operation bar. The intervening spring member of the buffer mechanism is bent to absorb the shock.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 9 show an embodiment of the present invention.

As shown in FIG. 2, the electric switching machine 10 includes a line branching device P.
It is set up next to. The branching device P includes a main rail R and a tongue rail T that can be converted.

The electric turning machine 10 includes an operating rod 30 which is connected to the tongue rail T side to perform a switching operation, and a lock can 50 which is arranged so as to be orthogonal to the operating rod 30 and restrains the tongue rail T. It is slidably supported on the rolling machine case 11.

A conversion device 35 is arranged outside the electric turning machine 10, and the operating rod 30 is connected to the tongue rail T via the conversion device 35.

As shown in FIG. 1 to FIG. 3, in the electric turning machine 10, an electric motor M is arranged at one end in a turning machine case 11, and the output of the electric motor M is passed through a drive mechanism 12. It is configured to act on the motion rod 30.

The electric motor M is operated by a three-phase alternating current,
The drive mechanism 12 reduces the rotational speed of the output shaft M1 of the electric motor M, and includes the following gear system.

An output gear 13 is fixedly mounted on an output shaft M1 of the electric motor M, and a first-stage large gear 14a of a first-stage reduction gear 14 is meshed with the output gear 13. The second stage large gear 15a of the second stage reduction gear 15 meshes with the small stage gear 14b. The third stage large gear 16a of the third stage reduction gear 16 meshes with the second stage small gear 15b of the second stage reduction gear 15, and the third stage reduction gear 1
Six sixth stage small gears 16b are meshed with the conversion gear 20.

The conversion gear 20 serves as a driving member of a conversion device 35 for converting the operating rod 30, and a rack member 25 is meshed with the conversion gear 20.

An operating rod 30 is connected to the rack member 25 via a buffer mechanism 21.

As can be seen by referring to FIG. 4 to FIG.
A guide groove 31 is formed in the guide groove 30, and a rack member 25 is fitted in the guide groove 31 so as to be movable back and forth. Rack member
A long hole 25a is bored in the hole 25, and a bolt 32 for preventing the rising from being screwed into the operating rod 30 is fitted in the long hole 25a.

A recess 26 having a semicircular cross section is formed in the rack member 25, and the recess 26 of the rack member 25 and the groove 33 of the operating rod 30 facing the recess 26 are formed.
The buffer mechanism 21 is fitted in the space formed by and.

The buffer mechanism 21 is configured as follows.

The spring member 22 having a cushioning action has a plurality of continuous springs 22a interposed on the telescopic rod 23, and the end portion 23 of the telescopic rod 23 is
a and 23b are further urged by springs 22a in the direction of separating them,
The end portions 23a and 23b of the telescopic rod 23 are elastically abutted on the front and rear walls of the recess 26 of the rack member 25 and the front and rear walls of the fitting groove 33 of the operating rod 30, respectively.

The flat spring 22a may be a coil spring.

The operating rod 30 extends forward and is connected to the conversion device 35 side via a link member 34.

As shown in FIGS. 2 and 8, the conversion device 35 includes a conversion case 36, an input link 37 that is swingably supported by the conversion case 36, and has a link member 34 connected to one end thereof.
The other end of the input link 37 is composed of an output link 38 which is also swingably supported and whose one end engages and disengages.

One end of the input link 37 is engaged with one end of the output link 38, and an engaging recess 38a is formed so that the output link 38 interlocks with the input link 37, and one end of the input link 37 is disengaged and disengaged. A stopper portion 38b is formed continuously with the engaging recess 38a so as to prevent the output link 38 from swinging by abutting against the one end.

A driving rod 39 is connected to the other end of the output link 38,
A driving rod 39 is connected to the tongue rail T side.

As shown in FIGS. 1 and 3, a locking mechanism 40 of the locking lock 50 is provided so as to be synchronized with the movement of the motion lock 30.

The locking mechanism 40 of the lock can 50 is fixed to the base member 41 fixed to the operation can 30, and the front and rear ends of the base member 41, and is driven by the motion can 30 to lock the lock of the lock can 50. A pair of lock pieces 45, 45 that locks or unlocks by engaging with the notch 51
Consists of

The operation rod 30 is provided with inspection blocks 43a and 43b, respectively, and detection arms 44a and 44b of a sensor unit 44 are in contact with the inspection blocks 43a and 43b to be swingable.

As shown in FIG. 9, a turning control device 60 for controlling the operation of the electric turning machine 10 receives a power from a motor power supply unit 61 and drives an electric motor M and a motor driving unit 62. And a rolling control unit 63 for controlling the unit 62.

The switch controller 60 includes a sensor unit 44 of the electric switch machine 10.
A sensor input unit 64 that receives operation information detected by
A transmission unit 65 for transmitting external information is provided to the rolling control unit 63.

The motor drive unit 62 is configured to receive an instruction from the rolling control unit 63, cut off the power supply to the electric motor M in response to the completion of the shift of the operation rod 30, and short-circuit the power supply line to perform dynamic braking. There is.

Next, the operation will be described.

FIG. 1 shows, for example, a stereoscopic locked state, in which one lock piece 45 engages with the lock notch 51 of the lock can 50 to lock the lock can 50.

At this time, the front end portion 23a of the telescopic rod 23 elastically abuts on the front wall of the recess 26 of the rack member 25 and the front wall of the groove 33 for fitting the operating rod 30, and likewise the telescopic rod 23. Rear end
Reference numeral 23b elastically abuts the rear wall of the recess 26 of the rack member 25 and the rear wall of the fitting groove 33 of the operating rod 30.

When the electric motor M is started for conversion operation, the output shaft M1
Output gear 13, first stage large gear 14a of first stage reduction gear 14, first stage small gear 14b, second stage large gear 15a of second stage reduction gear 15, second stage small gear 15b, third stage The conversion gear 20 is rotationally driven by the drive mechanism 12 that reaches the third-stage large gear 16a and the third-stage small gear 16b of the reduction gear 16.

In a normal conversion operation, the spring member 22 of the buffer mechanism 21 does not bend, and the rack member 25 moves forward together with the conversion gear 20. If the rack member 25 is slightly displaced, it will not move.
Is also displaced, and the one lock piece 45 in the locked state is slidably displaced in the forward direction, that is, the unlocking direction.

The lock piece 45 is disengaged from one lock notch 51 of the lock can 50, and the lock can 50 is unlocked.

When the conversion gear 20 further rotates and the rack member 25 is displaced further forward, the operating rod 30 is driven and the link member 34 is moved.
The input arm 37 swings clockwise in FIG. When the input arm 37 swings, the end of the input arm 37 comes off the stopper portion 38b of the output arm 38, and
It engages with the engaging recess 38a of the output arm 38.

Further, when the input arm 37 swings, the output arm 38 swings counterclockwise because the end portion of the input arm 37 is engaged with the engaging recess 38a of the output arm 38, and the driving rod is driven. The Tongler T switches to a rebellion via 39.

When the conversion of the tongue rail T is completed, the other lock piece 45 is fitted into the other lock notch 51 of the lock can 50 and locked.

The operating state of the lock pieces 45, 45 during the conversion operation is detected by the sensor unit 44 by the detection arms 44a, 44b being pushed and moved by the checking blocks 43a, 43b. Lock piece
The movements of 45 and 45 represent the operating states of the operating can 30 and the locking can 50, and the sensor unit 44 controls the operating state of the operating can 30 and the locking can 50 via the sensor input unit 64. Communicate to 63.

During the conversion operation, the rolling control unit 63 instructs the motor drive unit 62 based on the information from the sensor unit 44, and the motor drive unit 62
In response to the completion of conversion of the operating rod 30, the connection to the electric motor M operated by the three-phase AC is cut off, and the power supply line on the electric motor M side is short-circuited to perform dynamic braking.

The inertia energy after the power supply to the electric motor M is cut off is
Since it is absorbed by the dynamic braking action of the electric motor M, the conversion gear 20 and the like do not rotate excessively, and the electric switching machine 10 stops.

If a stone is caught between the tongue rail T and the main rail R, and if the moving rod 30 is interrupted while it is being driven, it will try to stop. Since the conversion member 20 tends to displace the rack member 25, the spring member 22 of the buffer mechanism 21 interposed therebetween is bent and the shock is absorbed.

That is, the spring members 22, 22 of the buffer mechanism 21 are the rack members 2
Since it is held by being fitted to both 5 and the operating rod 30, for example, when the tongue rails T are switched from the normal position to the inverted position, if the two members are relatively displaced due to intermediate obstruction, the rack member The rear wall of the recess 26 of 25 and the rear wall of the fitting groove 33 of the operating rod 30 try to come close to each other, and
The end portions 23a and 23b of 23 are brought close to each other, and the plurality of countersunk springs 22a are respectively compressed to absorb the shock.

Further, the motor drive unit 62 is configured to stop the energization of the electric motor M a predetermined time after the energization of the electric motor M is started, and prevents an overcurrent from flowing to the electric motor M.

When switching in the opposite direction, the rack member 25
30 is displaced in the opposite direction, the movement starts from the displacement of the other lock piece 45, and the order is reversed in the reverse order.

Although the electric motor M operated by the three-phase alternating current is shown in the embodiment, the electric motor may be a brushless type motor operated by the three-phase alternating current.

In general, the brushless type has a smaller inertia and a larger starting torque, and the dynamic braking is easy to control. Furthermore, since the torque is proportional to the current, it is easy to extract the conversion force from the current. Suitable for non-conversion prediction.

[Advantages of the Invention] According to the electric tipping machine and the tipping control device of the present invention, the clutch provided in the drive system is abolished, while the buffer mechanism is provided so as to buffer the impact or overload. As a result, it is possible to provide an electric switching machine with a simple structure, reliable operation, and almost no maintenance, and to provide a rolling control device suitable for controlling such an electric switching machine. can do.

[Brief description of drawings]

1 to 9 show one embodiment of the electric turning machine according to the present invention. FIG. 1 is a plan view of the electric turning machine with the upper lid removed, and FIG. 2 is a branch. FIG. 3 is a vertical sectional view of an electric switching machine, FIG. 4 is a vertical sectional view showing a drive mechanism, and FIG. 5 is a sectional view taken along line VV of FIG. FIG. 6 is a sectional view taken along line VI-VI, FIG. 7 is a view taken along arrow VII, FIG. 8 is a plan view of a conversion device, and FIG. 9 is a block diagram showing an embodiment of a rolling control device. 10 and 11 show a conventional example, and FIG. 10 is a plan view of an electric switching machine,
Similarly, FIG. 11 is a front view. P: turnout device, R: main rail T: tongue rail, M: electric motor 10: electric rolling machine, 20: conversion gear, 21: buffer mechanism, 22: spring member 22a. Belleville spring, 25 …… Rack member 30 …… Operation mechanism, 35 …… Conversion device 40 …… Locking mechanism, 44 …… Sensor unit 45 …… Lock piece, 60 …… Rolling control device 61 …… Motor power supply Part, 62 ... Motor drive part 63 ... Rolling control part, 64 ... Sensor input part 65 ... Transmission part

Claims (3)

[Claims] Claim: What is claimed is: 1. A railroad branching device for converting tongue rails between a normal position and a reciprocal position, the operation bar (30) for converting the tongue rails, and the lock bar (50) for restraining the tongue rails. And an electric switchgear equipped with a drive mechanism (12) for conversion operation inside and converting the operation rod (30) by a conversion device (35) provided outside thereof. The drive mechanism (12) of the operating rod (30) is driven to rotate by an electric motor (M) and is rotated by an electric gear (20). A rack member (25) supported in a lever case so as to be linearly movable in the same direction as the operating rod (30), and a drive transmission path between the rack member (25) and the operating rod (30). A cushioning mechanism (2
1) An electric switching machine comprising: 2. The rolling control device for an electric rolling machine according to claim 1, wherein the electric motor (M) for performing a switching operation is operated by a three-phase alternating current, and the electric motor (M ) For driving the motor drive unit (62) and a roll control unit (63) for controlling the motor drive unit (62), the motor drive unit receiving an instruction from the roll control unit (63). (62) is configured to cut off the connection to the electric motor (M) in response to the completion of the conversion of the operation rod (30) while short-circuiting the power supply line on the electric motor (M) side to perform dynamic braking. A rolling control device characterized by the above. 3. The rolling control device for an electric switching machine according to claim 1, wherein the electric motor (M) for performing a switching operation is a brushless type operating by a three-phase alternating current, and the electric motor ( M) having a motor drive unit (62) for driving the motor drive unit and a roll control unit (63) for controlling the motor drive unit (62), and the motor drive receiving an instruction from the roll control unit (63). The section (62) disconnects the connection to the electric motor (M) in response to the completion of the conversion of the operating rod (30), while short-circuiting the power supply line on the electric motor (M) side to perform dynamic braking. A rolling control device characterized by the above.