JPH076054Y2 - Electric turning machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to an electric switching machine used for railway branch conversion.

"Prior Art" As a conventional electric turning machine, for example, FIGS.
There is something like the one shown in the figure.

That is, the electric switch is installed on the outside of the track, and the operating rod 5 is attached to the connecting rod on the branch device side (not shown).
End portions 5a of the lock rods 8 and 9 are connected to each other.

The deceleration drive system of the electric turning machine is decelerated by engaging the bevel pinion 1a fixed to the output shaft side of the drive motor 1 with the bevel gear 2 on the rotary shaft side of the friction plate clutch 2a, and further by the intermediate gear 3. The speed is reduced, and further, the intermediate pinion 3a coaxial with the intermediate gear 3 meshes with the conversion gear 4 to reduce the speed, and the conversion roller 4a is planted in the conversion gear 4.

As the conversion gear 4 rotates, the conversion roller 4a swings, engages and disengages with the guide groove in the central portion of the operating rod 5, and reciprocates the operating rod 5,
In addition, it engages with the engagement / disengagement groove of the cam plates 6a, 7a of the insertion locking rods 6,7, whereby the insertion locking rods 6,7 cannot move the locking rods 8,9 with the locking pieces 6b, 7b. 6c, 7c
The operation rod 5 is constrained so that it cannot be moved.

The operating rail of the diverter is operated by the operating rod 5 and is held in position and locked by the insertion locking rods 8 and 9.

[Problems to be solved by the invention] However, in such a conventional electric switching machine, the deceleration drive system does not have a positive braking function at the time of rest, and the position is not stable and moves naturally. At the end of conversion, the conversion roller 4a and the cam plate 6a collide with each other, and the repulsive energy due to the collision is not completely absorbed by the slip of the friction plate clutch 2a, but the conversion gear 4 reverses and stops.
Due to the unstable performance of the friction plate type clutch 2a, the conversion gear 4
Is not determined, the stop position of the conversion gear 4 and the like are related to the signal via the circuit controller, and it is unstable to be used in connection with the signal, and the guarantee of the stop position is not sufficient. There was a problem.

The present invention has been made in view of such a conventional problem, and provides an electric switching machine that can maintain the position of the deceleration drive system at rest and guarantee the stop position of the deceleration drive system. It is intended to be provided.

[Means for Solving the Problem] The gist of the present invention for achieving such an object is to provide a reduction drive system (20) including an electric motor (10) and a gear train connected to the electric motor (10). ) And the operating rod (40) and the locking rod (60,6) driven by the output of the deceleration drive system (20).
0a), the deceleration drive system (20) includes a large permanent magnet wheel plate (80), a large hysteresis magnetizing plate (85), and a small permanent magnet wheel plate (90). )
And a small-diameter hysteresis magnetizing material plate (95), the permanent magnet large wheel plate (80) is such that adjacent magnetic poles of a plurality of permanent magnets have different polarities on the electric motor (10) axis side.
In addition, the large-diameter hysteresis magnetizing material plate (85) is arranged in a large ring shape,
0) The mounting disc (86) is fixed to the output shaft (72) side where the rotation center axis is the same as the 0) shaft, and is retained by the magnetic force of the permanent magnet large wheel (80) on the mounting disc (86). Permanent magnet large wheel (8
0) is closely attached and fixed, and the large-diameter hysteresis magnetizing material plate (85) and the permanent magnet large wheel plate (80) are coupled to each other by a magnetic force coupling (80,8) for power transmission.
5), the permanent magnet small wheel plate (90) is a small wheel shape in which the adjacent magnetic poles of a plurality of permanent magnets have different polarities in the fixed casing (71) of the reduction drive system (20). The small diameter hysteresis magnetizing material plate (95) is mounted on the mounting disc (86).
On the side opposite to the large-diameter hysteresis magnetizing material plate (85), the permanent magnet small wheel plate (90) is closely fixed to face the permanent magnet small wheel plate (90) so as to be held by the magnetic force. The small-diameter hysteresis magnetizing material plate (95) and the permanent magnet small wheel plate (90) are magnetic force couplings (90, 9) for holding the position.
5) and the magnetic force couplings (80,85) for power transmission and the magnetic force couplings (90,95) for holding the position are linked devices (70).
And magnetic force coupling for holding position (80,85)
It exists in an electric switching machine that can maintain the position of the deceleration drive system (20) even when the vehicle is at rest.

[Operation] When the drive motor of the electric switch is rotated, the braking torque is applied by the magnetic force coupling for maintaining the position, but it is smaller than the torque by the magnetic force coupling for power transmission. Is transmitted from the motor shaft to the output shaft side, the deceleration drive system operates normally, and there is no hindrance to the conversion operation of the electric switching machine.

When the motor rotation is cut off, the magnetic force coupling for position holding always works in the direction to stop the deceleration drive system, so after the deceleration drive system is stopped, it acts to prevent natural displacement of the deceleration drive system. It is possible to hold the stop position of the deceleration drive system.

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

1 to 6 show an embodiment of the present invention.

As shown in FIG. 1 and FIG. 2, in the electric turning machine, the output of the drive motor 10 acts on the operating rod 40 and the insertion locking rods 50, 50a via the connecting shaft device 70 and the reduction drive system 20. It is configured to do. The connecting rod on the side of the switch (not shown) has an end 42 of the operating rod 40 and an end of the locking rod 60, 60a.
62 are connected to each other.

The deceleration drive system 20 decelerates the rotational speed of the output shaft 72 of the shaft device 70 that is interlocked with the motor shaft 12 of the drive motor 10, and the bevel pinion 22 is fixed to the output shaft 72.

A bevel gear 26 is meshed with the bevel pinion 22.
A small gear 27 is fixed to a rotating shaft 24a of the bevel gear 26 and meshes with an intermediate gear 28. An intermediate pinion 29 is fixed to the same rotary shaft as the intermediate gear 28 and meshed with the conversion gear 30.

A conversion roller 32 is planted in the conversion gear 30. At a lower position of the conversion gear 30, an operation rod 40 that engages with and disengages from the conversion roller 32 and insertion locking rods 50 and 50a are arranged.

A guide groove 44 that engages and disengages with the conversion roller 32 is provided at the center of the operating rod
Is engraved. Operation rod 40 by swinging the rotating roller 32
Is designed to move back and forth.

The insertion lock rods 50 and 50a are provided symmetrically. The insertion locking rod 50 has a cam plate 52 at one end, a locking piece 54 at the other end, and an operating rod receiving portion 56 at the center. A cam groove 53 that engages with and disengages from the conversion roller 32 is formed in the cam plate 52.

Similarly, the insertion locking rod 50a has a cam plate 52a at one end, a locking piece 54a at the other end, and an operating rod receiving portion 56a at the center, and a cam groove (not shown) is formed on the cam plate 52a. It is set up.

The relationship between the conversion roller 32 and the cam plate 52 is that the conversion roller 32 engages with the cam groove 53 of the cam plate 52, so that the insertion locking rod is
A lock piece (50) immovably restrains the locking rod (60) with a locking piece (54), and an operation rod receiving portion (56) immovably restrains the operation rod (40) in one direction.

Similarly, the insertion locking rod 50a locks the locking rod 60a immovably by the locking piece 54a, and the movement rod 40 immovably restrains by the movement rod receiving portion 56a.

As shown in FIGS. 3 to 5, a connecting shaft device 70 is interposed between the drive motor 10 and the reduction drive system 20. Transmission device
The casing 70 has a magnetic force coupling for transmitting power and a magnetic force coupling for holding a position inside a casing 71.

A permanent magnet large wheel plate 80, which constitutes one of the magnetic force couplings for power transmission, is fixed to the motor shaft 12 side of the drive motor 10. That is, the insertion tube 74 is externally fitted to the motor shaft 12 of the drive motor 10, and the insertion tube 74 has a bearing 76.
Is rotatably supported by a bearing flange 77 fixedly provided on the casing side. Mounting disc for plug-in tube 74
82 is fixed, and a permanent magnet large wheel plate 80 is fixed to the mounting disk 82.

As shown in FIG. 4, the permanent magnet large wheel plate 80 is formed by arranging a plurality of permanent magnets 84 in a large ring shape so that adjacent magnetic poles have different polarities.

As shown in FIGS. 3 to 6, a large-diameter hysteresis magnetizing material forming the other of the magnetic force couplings for power transmission.
85 is fixed to the output shaft 72 side. That is, the output shaft 72
Is rotatably supported by a bearing plate 78 fixed to the casing 71 via a bearing 79, and a mounting disc 86 is fixed to the end of the output shaft 72. A large-diameter hysteresis magnetizing material 85 is fixed to the mounting disc 86 so as to closely face the permanent magnet large wheel plate 80, and is held by the magnetic force of the permanent magnet large wheel plate 80.

A copper wheel 88 is superimposed on the large-diameter hysteresis magnetizing material 85.

The permanent magnet small wheel plate 90 that constitutes one of the position holding magnetic force couplings is fixed to the casing 71 side. That is, the bearing plate 78 on the casing 71 side has a holding plate.
The permanent magnet wheel plate 90 is fixedly mounted via 92. The permanent magnet small wheel plate 90 is formed by arranging a plurality of permanent magnets 94 in a large ring shape so that adjacent magnetic poles have different polarities.

A small-diameter hysteresis magnetizing material 95, which constitutes the other of the magnetic force coupling for holding the position, is fixed to the mounting disk 86. That is, the small-diameter hysteresis magnetizing material 95 is fixed to the mounting disk 86 on the opposite side of the mounting surface of the large-diameter hysteresis magnetizing material 85, and is provided in close proximity to the permanent magnet small wheel plate 90, and the permanent magnet. The position is held by the magnetic force of the small wheel board 90.

Next, the operation will be described.

At the time of conversion of the rolling machine, the torque of the motor shaft 12 of the drive motor 10 is transmitted to the output shaft 72 via the magnetic force coupling for power transmission. At the same time, the braking torque of the magnetic force coupling for holding the position in the direction opposite to the rotation direction by the torque on the motor shaft 12 side acts on the output shaft 72.

However, since the braking torque is smaller than the torque on the drive motor 10 side, the deceleration drive system 20 operates normally and there is no hindrance to the conversion operation.

Referring to FIG. 6 in more detail, due to the component force P1 of the holding force P of the magnetic force coupling for power transmission, the output shaft 72 also rotates with the rotation of the motor shaft 12, and the torque on the motor shaft 12 side is It is transmitted to the output shaft 72 side. In addition, the reaction force Pe of the eddy current due to the occurrence of slip acts on the copper wheel plate 88 to increase the component force P1. Further, the braking force Ps of the component force P1 by the magnetic force coupling for maintaining the position acts in the direction opposite to the component force P1.

When the motor circuit is cut off at the end of the conversion of the electric turning machine, the torque on the drive motor 10 side is lost, and the cam groove 53 of the cam plate 52 and the conversion roller 32 collide back and forth. Repulsive energy resulting from elastic strain of each member of the deceleration drive system 20 at the time of collision is absorbed by the braking torque of the magnetic force coupling for position holding, and the deceleration drive system is held to the minimum displacement and held.

When the electric turning machine is at rest, the braking torque of the magnetic force coupling for holding the position acts to prevent natural displacement of the reduction drive system 20, and the position of the reduction drive system 20 can be maintained. It is a thing.

According to the electric turning machine according to the embodiment, since the copper wheel plate 88 is provided, the component force for transmitting the torque on the motor shaft 12 side to the output shaft 72 side increases, and the torque on the motor shaft 12 side increases. Can be effectively transmitted.

Further, since the torque on the motor shaft 12 side is transmitted by the magnetic force coupling, the friction plate type clutch is not required, and it is not necessary to regularly check the friction plate type clutch, which can contribute to the reduction of work. .

In the above-described embodiment, the connecting shaft device 70 is provided between the drive motor 10 and the reduction drive system 20, but the place where the connecting shaft device is provided is not limited to this. It may be divided into an upper part and a lower part on the 27 side, and a connecting shaft device may be provided so that the rotating shaft of the bevel gear 26 side is the output shaft side and the rotating shaft of the small gear 27 side is the input shaft side.

[Effect of the device] According to the electric tipping machine of the present invention, since the articulation device is provided with the constant inversion guarantee function, it is possible to perform a natural movement at the time of rest in the deceleration drive system of the electric tipping machine. It is possible to completely prevent the characteristics of the deceleration drive system, to ensure that the deceleration drive system is positioned and inverted in normal conversion, and the operation of the circuit controller linked to the deceleration drive system is ensured. It can prevent and contribute to the reduction of signal maintenance work.

[Brief description of drawings]

1 to 6 show an embodiment of the present invention. FIG. 1 is a plan view of a conversion drive system of an electric switching machine, FIG. 2 is a side view of the same, and FIG. Partial enlarged view, FIG. 4 is a front view of a large permanent magnet wheel plate, FIG. 5 is a front view of a small permanent magnet wheel plate, FIG. 6 is an explanatory view of the action of magnetic force, and FIGS. 7 and 8 are conventional. An example is shown, FIG. 7 is a plan view of the conversion drive system of the electric switch, and FIG. 8 is a side view of the same. 10 …… Drive motor, 12 …… Motor shaft 20 …… Deceleration drive system, 40 …… Operating rod 50,50a …… Insertion locking rod 60,60a …… Locking rod 70 …… Coupling device, 71 …… Casing 72 …… Output shaft, 80 …… Large permanent magnet ring plate 85 …… Large-diameter hysteresis magnetizing plate 90 …… Permanent magnet small ring plate 95 …… Small-diameter hysteresis magnetizing plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nobuyoshi Kojima 1-29-2, Heian-cho, Tsurumi-ku, Yokohama City, Kanagawa Prefecture Kyosan Manufacturing Co., Ltd. (56) References: 53-158003 (JP, U) Actually open 54-9409 (JP, U) Actually open 36-4005 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A deceleration drive system (20) comprising an electric motor (10), a gear train connected to the electric motor (10), and an operating rod (40) driven by the output of the deceleration drive system (20). An electric switch equipped with a locking rod (60, 60a), wherein the reduction drive system (20) includes a permanent magnet large wheel plate (80), a large system hysteresis magnetizing material plate (85), Permanent magnet wheel plate (90)
And a small-diameter hysteresis magnetizing material plate (95), the permanent magnet large wheel plate (80) is such that adjacent magnetic poles of a plurality of permanent magnets have different polarities on the electric motor (10) axis side.
In addition, the large-diameter hysteresis magnetizing material plate (85) is arranged in a large ring shape,
0) The mounting disc (86) is fixed to the output shaft (72) side where the rotation center axis is the same as the 0) shaft, and is retained by the magnetic force of the permanent magnet large wheel (80) on the mounting disc (86). Permanent magnet large wheel (8
0) is closely attached and fixed, and the large-diameter hysteresis magnetizing material plate (85) and the permanent magnet large wheel plate (80) are coupled to each other by a magnetic force coupling (80,8) for power transmission.
5), the permanent magnet small wheel plate (90) is a small wheel shape in which the adjacent magnetic poles of a plurality of permanent magnets have different polarities in the fixed casing (71) of the reduction drive system (20). The small diameter hysteresis magnetizing material plate (95) is mounted on the mounting disc (86).
On the side opposite to the large-diameter hysteresis magnetizing material plate (85), the permanent magnet small wheel plate (90) is closely fixed to face the permanent magnet small wheel plate (90) so as to be held by the magnetic force. The small-diameter hysteresis magnetizing material plate (95) and the permanent magnet small wheel plate (90) are magnetic force couplings (90, 9) for holding the position.
5) and the magnetic force couplings (80,85) for power transmission and the magnetic force couplings (90,95) for holding the position are linked devices (70).
And magnetic force coupling for holding position (80,85)
An electric switching machine that can maintain the position of the deceleration drive system (20) even when the machine is at rest.