JPH06287Y2 - Conversion drive device for converter with weight - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a conversion drive device for a weighted converter used for switching a vehicle to a main line branch line in a railroad track.

(Prior Art) As one of the devices for setting the opening direction of a vehicle on a main line branch line in a railroad track, there is a weighted converter as shown in FIGS. 7 and 8, for example. The weight-equipped converter is fixed to the sleeper 1, and the rectangular holes 3 that are long in the vertical direction are provided in the wall portions 2b on both sides of the converter body 2 having the groove 2a at the center of the cross section. On the side, two arm mounting pieces 4 and 4 are provided in equilibrium with each other, and a crank arm 6 is pivotally mounted by a pin 5 between the arm mounting pieces 4 and 4. One end 6a of the crank arm 6 is inserted through the rectangular hole 3 so as to be vertically movable.

Holes 7 and 7 are formed in the facing wall portion 2b, and a shaft 8 is hung between the holes 7 to be rotatable, and a weighted conversion handle 9 is fixed to the shaft 8. An arm receiving portion 10 is formed on one side surface of the conversion handle 9, and when the conversion handle 9 rotates around the shaft 8, the arm receiving portion 10 and one end 6a of the crank arm 6 are formed.
The upper surface or the lower surface is contacted to complete the rotation.

A conversion rod 11 is connected to the lower end 6b of the crank arm 6, and the other end of the conversion rod 11 is fixed to a tongue rail 12 that moves so as to contact one of the basic rails R.

Therefore, when the conversion handle 9 is manually rotated about the shaft 8, one end 6a of the crank arm 6 which is inserted into the rectangular hole 3 comes into contact with the arm receiving portion 10 of the conversion handle 9 so that the rectangular hole 3 is formed. Move vertically from top to bottom. This vertical movement is a horizontal movement at the lower end 6b of the crank arm 6 and moves in the horizontal direction of the tongue rail 12 via the conversion rod 11 to switch the tongue rail 12 between the localization side and the inverted side. Open the branch.

In recent years, an automatic conversion device has been installed in place of the above-mentioned weight converter to improve workability, especially in large business sites. This automatic conversion device does not have a conversion handle that can be converted manually, and has a structure different from that of the conventional weight-equipped converter.

(Problems to be Solved by the Invention) However, there is a problem in that it is expensive to replace the weight-equipped converter with an automatic conversion device, and maintenance of the automatic conversion device is complicated and time-consuming.

The present invention has been made in view of the above circumstances. It uses the conventional weight converter as it is, is inexpensive and easy in terms of installation and maintenance, and automatically operates the weight converter with a simple operation. An object of the present invention is to provide a conversion drive device for a converter with a weight.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the conversion drive device for a converter with weight according to the present invention is characterized by the following configuration.

The conversion drive device for a converter with a weight has a rotation drive means (50) having a transmission mechanism, a conversion shaft (21), a cam position detector (A, B), and a control device (39). .

The conversion shaft (21) has a crank shaft (31) attached to one end and cams (34, 35) attached to the other end.
An arm fitting (32) for holding the conversion handle (9) of the converter with weight is fixed to the tip of 3), and cam position detectors (A, B) are arranged near the cams (34, 35). Is driven to rotate by a rotation driving means (50) having a transmission mechanism.

The rotation drive means (50) having a transmission mechanism is configured to be rotated normally or reversely by being controlled by the control device (39) which inputs the outputs of the cam position detectors (A, B). Perform localization or inversion movement.

(Operation) Since the present invention is configured as described above, when the conversion handle (9) of the weight-equipped converter is on the localization side, the position of the cams (35, 36) provided on the conversion shaft (21) is set to the cam position. Detector (A, B)
The control device (39) which receives the output of the rotation drive means controls the rotation drive means (50) having a transmission mechanism to rotate in the forward direction. This rotation is transmitted to the conversion shaft (21),
The crank shaft (31) is rotated by the rotation of the conversion shaft (21), and the conversion type (9) of the weight-equipped converter held by the arm fitting (32) on one end side of the crank shaft (31) is operated, Switch from the localization position to the opposite position.

Moreover, when the conversion type (9) of the weight-equipped converter is on the opposite side,
The rotation drive means (50) having a transmission mechanism is detected by the cam position detection (A, B) of the position of the cams (35, 36) provided on the conversion shaft (21), and the control device (39) which inputs the output. Is controlled to rotate in the reverse direction. This rotation is transmitted to the conversion shaft (21), the crank shaft (31) is rotated by the rotation of the conversion shaft (21), and the weight is held by the arm fitting (32) on one end side of the crank shaft (31). The conversion handle (9) of the converter is operated in the opposite direction to the above to switch from the inverted position to the localization side.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 6.

The weight-equipped converter shown in FIGS. 1 to 3 has the same structure as the conventional one shown in FIGS. 7 and 8, and the same parts are designated by the same reference numerals.

The rolling drive device for a converter with a weight according to this embodiment is configured to include a rotation drive means 50 having a transmission mechanism, a conversion shaft 21, cam position detectors A and B, and a control device 39. .

That is, the bearing 2 having the holes 23 and 24 for bridging the conversion shaft 21 and the intermediate shaft 22 to the sleeper 1 on the side of the converter with weight.
5 is fixed. An electromagnetic clutch 26 is provided at one end of the intermediate shaft 22.
The electromagnetic clutch 26 is connected to the electric motor 28 as a rotational power source through a buffer coupling 27.
Drive means 5 having a transmission mechanism connected to the rotary shaft of
Configures 0. The electromagnetic clutch 26 transmits the rotation of the electric motor 28 to the intermediate shaft 22, and the internal clutch plate engages or disengages the transmission of the rotation of the electric motor 28 to or from the intermediate shaft 22. Control of connection and disengagement of the clutch plates in the electromagnetic clutch 26 is performed by a control device 39 described later.

An intermediate gear 29 is provided on the intermediate shaft 22, and the intermediate gear 29 transmits the rotation of the intermediate shaft 22 to the conversion shaft 21 by meshing with a large diameter conversion gear 30 provided on the conversion shaft 21.

The conversion shaft 21 is inserted into the hole 23 so that both ends thereof protrude from the bearing 25, and the crankshaft 31 is fixed to one end of the conversion shaft 21 at right angles to the conversion shaft 21. A U-shaped arm fitting 32 is attached to the tip end of the crankshaft 32, and the conversion handle 9 of the converter with weight is inserted into the recess 32a of the arm fitting 32 as shown in FIG. It is designed to be gripped. That is, a conversion lever is formed by the conversion shaft 21, the crankshaft 31, and the arm fitting 32, and the conversion handle 9 of the converter with a weight is moved by this conversion lever to perform the localization and the inversion of the tongue rail. Further, a cushioning rubber 33 is attached to the inner wall of the U-shaped arm fitting 32, and the inner wall surface of the arm fitting 32 is brought into contact with the conversion handle 9 via the rubber 33.

The conversion shaft 21 is fixed by a bearing 25 so as to be positioned on the same straight line as the pin 8 of the conversion handle 9 of the weight-equipped converter, but between the cushion rubber 33 of the U-shaped arm fitting 32 that holds the conversion handle 9. Since the width is made larger than the width of the conversion handle 9 so that a gap is formed between the cushioning rubber 33 and the conversion handle 9 (FIG. 3),
Even if the pin 8 and the conversion shaft 21 are slightly deviated from the same straight line, the conversion handle 9 can be inserted into the recess 32a of the arm fitting 32 and the conversion handle 9 can be gripped.

As shown in FIG. 3, the crankshaft 31 can be rotated by the rotation of the conversion shaft 21 by an angle at which the conversion handle 9 is rotated from the normal position (a) to the inverted position (c) or vice versa. Has become.

Two cams 34 and 35 are fixed to the other end of the conversion shaft 21. The cams 34 and 35 are provided with convex portions 34a and 35b at about ⅓ of their circumferences, respectively, and groove portions 36 and 37 are provided on the facing surfaces of the two cams 34 and 35, respectively. The groove portions 36 and 37 are fitted to each other so that the 35b is displaced by 180 degrees, and both ends of the two cams 34 and 35 are fastened with the nuts 38 and 38, thereby being fixed to the conversion shaft 21.

In the vicinity of the cams 34 and 35, the protrusions 34 of the cams 34 and 35 are formed.
Limit switches A and B, which open the contacts by being pressed by a and 35b, are provided as cam position detectors. The outputs of the limit switches A and B are the control device 3
9 is input to control the forward and reverse rotation of the electric motor 28 and the connection and release of the electromagnetic clutch 26.
The bearing 25, the electric motor 28, etc. are covered with a storage cover 40.

Next, the control circuit in the control device 39 will be described with reference to FIG.

A power supply voltage is supplied from the power supply terminals 1 and 2 to the main switch S1 for switching the tongue rail 12 from the localization side to the inversion side through the relay device L and the limit switch A at one end and the relay switch R1 at the other end. . Similarly, the power supply voltage is supplied from the power supply terminals 1 and 2 via the relay device R and the limit switch B to one end of the main switch S2 that performs the conversion from the inverted side to the localization side, and the relay switch L1 to the other end.

The relay switches R1 and L1 interlock with the relay devices R and L to connect either the terminal a and the terminal b or the terminal a and the terminal c. When no current is flowing through the relay devices R and L, the terminal a is connected. And terminal b, and when current is flowing, terminal a and terminal c are connected.

Further, the terminal c of the relay switch L1 and the relay device L are connected as a holding circuit when the switch S1 is opened, and the terminal c of the relay switch R1 and the relay device R are connected as a holding circuit when the switch S2 is opened. Are connected.

Of the four terminals of the electric motor M (28), the terminal 3 is connected to the power supply terminal 1 via the relay switches R2 and L2 in parallel. The terminal 4 is connected to the power supply terminal 2. The terminal 5 is connected to the power supply terminal 1 via the relay switch R3 and the power supply terminal 2 via the relay switch L3. The terminal 6 is the power supply terminal 1 via the relay switch L4.
And a power source terminal 2 via a relay switch R4.

In addition, the electromagnetic clutch 2 is provided between the terminal 3 side of the relay switches R2 and L2 and the power supply terminal 2 via a transformer and a rectifier.
A coil CM for connecting and disconnecting 6 is connected.

The relay switches R2, R3 and R4 are switches that are closed when a current flows through the relay device R, and are open when no current flows through them. Similarly, L2, L3 and L4 are closed when a current flows through the relay device R. The switches that open when current does not flow control forward and reverse rotation of the electric motor M (28) and the current flows through the coil CM, thereby controlling the electromagnetic clutch 26 to engage and disengage.

Next, the relationship between the operation of the conversion handle 9 of the converter with a weight and the operations of the cams 34 and 35 on the conversion shaft 21 and the relay switch of the control circuit will be described.

FIG. 3 shows the rotating state of the conversion handle 9, and FIG. 6 shows the rotational positions of the cams 34, 35 as viewed from the conversion handle 9 side. The position of FIG. 3 (A) is the position of the conversion handle 9 which keeps the tongue rail 12 on the localization side, and at this time, the conversion shaft 2
As shown in FIG. 6 (a), the cams 34 and 35 fixed to 1 are pushed by the convex portion 35a of the cam 35 to open the contacts, and the limit switch A is in the closed state. . Therefore, the control circuit is in the state shown in FIG.

When the main switch S1 is manually closed in this state, a current flows through the relay device L, the terminals a and c of the relay switch L1 are connected, and the relay switch L2 is connected.
L3 and L4 are closed. Therefore, even if the main switch S1 is released, a current flows through the relay device L via the relay switch L1, and the terminal 3 among the four terminals of the electric motor M (28) is
Is connected to the power supply terminal 1 via the relay switch L2, the terminal 4 is connected to the power supply terminal 2 via the relay switch L3, the terminal 5 is connected to the power supply terminal 2 via the relay switch L3, and the terminal 6 is connected to the power supply terminal.
(28) is rotated (normal rotation) and the electromagnetic clutch 26
The rotation of the electric motor 28 is transmitted to the conversion shaft 21 via the intermediate shaft 22, the intermediate gear 29, and the conversion gear 30.

Then, the conversion shaft 21 rotates in the direction of the arrow in FIG. 6 (a), the convex portion 35a of the cam 35 releases the pressing of the limit switch B, and the limit switch B is closed (at this time, the limit switch B is closed). It is in a closed state with A and B). Next, 90 ° from the initial state (Fig. 6 (a))
After rotating about a degree, as shown in FIG. 5B, the convex portion 34a of the cam 34 pushes the limit switch A to open the limit switch A. When the limit switch A is opened, the supply of current to the relay device L is cut off, the terminals a and b of the relay switch L1 are connected, and the relay switches L2, L3 and L4 are opened and the electric motor M
The rotation of (28) is stopped and the electromagnetic clutch 26 is released.

At this time, the conversion shaft 9 is rotated to a position shown in FIG. 3B, that is, a position slightly beyond the vertical position, and thereafter, the conversion shaft 21 and the intermediate shaft 22 can be rotated by opening the electromagnetic clutch 26. Therefore, the conversion pattern 9 falls to the turning end point in FIG. 3C by the weight of the conversion pattern 9.

When the fall ends, the cushioning rubber 33 provided on the inner wall of the arm fitting 32 absorbs the cushion between the conversion handle 9 and the arm fitting 32.

At the conversion end point, the conversion shaft further rotates from the position shown in Fig. 6 (b), and becomes as shown in Fig. 6 (c). The relationship between the cams 34 and 35 and the limit switches A and B is shown in Fig. 6 ( Similarly to (b), the limit switch A is pressed by the convex portion 34a of the cam 34 to be in the open state, and the limit switch B is in the closed state.

In the opposite position, the limit switch A is in the open state and the limit switch B is in the closed state as shown in FIG. 6 (c). In this state, when the main switch S2 is manually closed, a current flows through the relay device R. The terminals a and c of the relay switch R1 are connected, and the relay switches R2 and R are connected.
3 and R4 are closed, and among the four terminals of the electric motor M, the terminal 3 is the power supply terminal 1 through the relay switch R2.
, Terminal 4 is power supply terminal 2, terminal 5 is relay switch R
3 to the power supply terminal 1 and terminal 6 to the relay switch R4
Is connected to the power supply terminal 2 via the motor, the electric motor M (28) rotates in the reverse direction, and the electromagnetic clutch 26 is connected.
The rotation of 8 is transmitted to the intermediate shaft 22, the conversion shaft 21 rotates, and the reverse operation of converting from the localization side to the opposite side is performed.

When the conversion handle 9 is rotated to a position beyond the vertical position in the same manner as described above, the relationship between the cams 34, 35 and the limit switches A, B is such that the limit switch A is closed as shown in FIG. State, limit switch B is open,
The rotation of the electric motor 28 is stopped, the electromagnetic clutch 26 is released, and the rotation transmission to the intermediate shaft 22 is cut off. After that, the conversion handle 9 falls due to its own weight and completes the conversion from the inverted position to the normal position, and the relationship between the cams 34 and 35 and the limit switches A and B returns to the state of FIG.

Further, when the main switches S1 and S2 are not operated, the electromagnetic clutch 26 is in the disengaged state, and the manual switch 9
Can be operated to perform operations from the localization side to the opposite side or vice versa.

When the orientation and the inversion are frequently changed, the contact portion between the conversion handle 9 and the one end portion 6a of the crank arm 6 or the contact portion between the square hole 3 and the one end portion 6a of the crank arm 6 is worn away by friction. May occur. Along with that, the turning angle of the conversion handle 9 increases, so that the time for transmitting the rotation to the electric motor 28 needs to change the time for engaging the electromagnetic clutch 26. In such a case, the cam 24 and the cam 3
By shifting the groove portions 36 and 37 in which 5 is fitted and changing the position where the limit switches A and B are in the closed state or the open state, the rotation time of the electric motor 28 and the electromagnetic clutch 2 are changed.
The connection duration of 6 can be adjusted.

Although the main switches S1 and S2 are described as manual switches such as pushbuttons in the above embodiment, a wireless remote control system may be used.

Since the present embodiment is configured as described above, the conversion handle of the weight-equipped converter can be automatically driven by the main switches S1 and S2 by using the existing weight-equipped converter as it is. The cost can be reduced, and the installation and maintenance are easy.

(Effect of the Invention) According to the drive device for a converter with a weight of the present invention, the control device controls the forward / reverse rotation of the conversion shaft, and at the same time, the rotation by the rotation drive means having the transmission mechanism is transmitted to the conversion shaft. Since the crank shaft attached to the conversion shaft is moved to convert the conversion handle of the existing weight-equipped converter, the conversion operation can be automated with a low-cost and simple device.

[Brief description of drawings]

FIG. 1 is a partial sectional front view of a drive unit for a converter with a weight according to the present invention, FIG. 2 is a right side view of a drive unit for a converter with a weight, and FIG. 3 is a converter for a weight. Explanatory drawing showing the turning state of the conversion handle when the drive device is viewed from the left side, FIG. 4 is an enlarged explanatory view of the cam and limit switch parts of the drive device for weight, and FIG. FIG. 6 is a circuit diagram showing a control circuit in the control device of the drive device, FIG. 6 is an explanatory view showing a rotating state of a cam of the drive device for a weight converter, and FIG. 7 is a front explanatory view showing a conventional weight converter. FIG. 8 is a right side explanatory view of FIG. 7. 2 …… Converter body 6 …… Crank arm 9 …… Conversion handle 21 …… Conversion shaft 22 …… Intermediate shaft 25 …… Bearing 26 …… Electromagnetic clutch 28 …… Electric motor 29 …… Intermediate gear 30 …… Conversion gear 31 ...... Crankshaft 32 …… Arm metal fittings 34,35 …… Cams 34a, 35a …… Convex portion 39 …… Control device 50 …… Rotary drive means with transmission mechanism A, B …… Limit switch (cam position detector)

Claims (1)

[Scope of utility model registration request] 1. A rotary drive means (50) having a transmission mechanism.
, A conversion shaft (21), a cam position detector (A, B),
A conversion drive device for a converter with a weight having a control device (39), wherein the conversion shaft (21) has a crank shaft (31) attached to one end and a cam (34, 35) attached to the other end, Three
The arm fitting (32) for holding the conversion handle (9) of the converter with weight is fixed to the tip of 1), and the cam position detectors (A, B) are output near the cams (34, 35). A control device (39) for inputting is arranged and is rotationally driven by a rotation driving means (50) having a transmission mechanism. The rotation driving means (50) having a transmission mechanism outputs the output of the cam position detector (A, B). A conversion drive device for a converter with a weight configured to perform normal or reverse rotation under the control of an input control device (39) to perform a localization or a reversal operation of the converter with a weight.