JP2571409Y2 - Hopper opening / closing operation mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper opening / closing operation mechanism for opening / closing an unloading port provided at the bottom of a ballast (crushed stone) hopper laid on a railway track.

[0002]

2. Description of the Related Art A funnel-shaped hopper for loading a ballast is provided on a hopper car for transporting ballast laid on and around a railroad track. Such a conventional hopper has a structure in which an unloading port is provided at the bottom of a housing having a wide open upper surface, and the unloading port is opened or closed by sliding a shielding plate that shields the unloading port. . The shielding plate and the operation unit are connected by a power transmission mechanism via, for example, a large gear and a shaft.

[0003]

Such a shielding plate is a mechanism for stopping the ballast from falling down from the unloading port. Therefore, when the ballast is loaded on the hopper and the shielding plate is slid by operating the operation unit, even if the shielding plate is slid because the entire weight of the loaded ballast is on the shielding plate. It was extremely heavy and required excessive force to operate the operating part.

Therefore, the present invention has been devised for the purpose of reducing the force required for operating the operation unit for opening and closing such a ballast unloading port.

[0005]

The hopper opening / closing mechanism of the present invention is provided immediately below the unloading port at the bottom of the hopper, and is provided with a shield plate for opening and closing the unloading port by sliding operation, and a handle shaft. Supports pivoting around
A handle held, attached to the handle shaft,
The torque amplified according to the amount of rotation of the handle is
A torque generator that outputs to the output shaft based on the action,
By transmitting the amount of rotation of the output shaft to the shielding plate,
A power transmission mechanism for sliding operate the shield plate, wherein Torr
For controlling the supply or non-supply of hydraulic pressure in the generator
Hydraulic pressure is supplied to the operating valve and the torque generator.
If not, directly connect the handle shaft and the output shaft
Characterized by comprising a that direct mechanism.

[0006]

Hopper opening and closing operation mechanism according to the present invention is, Han
Outputs a torque generator and a torque generator that generates torque amplified based on the amount of dollar rotation based on the action of hydraulic pressure
It is interposed between the shaft .

Therefore, when the steering wheel is rotated, the torque amplified according to the amount of rotation is output from the torque generator based on the action of the hydraulic pressure, and the output is transmitted to the shielding plate via the power transmission mechanism. Thus, the sliding operation of the shielding plate is performed.

[0008] Therefore, the unloading port can be easily opened and closed based on the sliding operation of the shielding plate by the torque amplified based on the oil pressure. Also, the torque generator is a steering wheel
The torque amplified according to the amount of rotation of the
Adjust the amount of rotation to output, so that the shielding plate is fully closed
It can be stopped at any position before opening. others
Therefore, the turning operation of the steering wheel is performed with a very slight force,
The shielding plate can be opened and closed subtly, and the amount of ballast dropped
Can be finely adjusted easily. In addition, Torque
In the event of any malfunction of the generator, the manual valve
To release the pressure oil from the torque generator.
To prevent the hydraulic pressure from being supplied to the torque generator.
Then, the handle is directly connected to the power transmission mechanism.
The rotation operation of the handle is transmitted to the power transmission mechanism as it is,
Opening and closing of wholesale outlets becomes possible.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. However, the present invention is not limited to one embodiment described in detail below, and includes all embodiments conceivable to those skilled in the art without departing from the gist of the present invention.

FIG. 1 is an explanatory view of a main part of a hopper car equipped with a hopper opening / closing operation mechanism according to an embodiment of the present invention. As shown in FIG. 1, in a hopper vehicle equipped with the hopper opening / closing operation mechanism according to the present embodiment, a torque generator 20 constituting a part of the present embodiment is interposed between a handle 10 and an output shaft 40. Is equipped.

That is, in FIG. 2 schematically showing a hopper opening / closing operation mechanism according to this embodiment, two torque generators 20, 20 arranged in parallel are operated by a motor (2.2 kW) 24 from an oil reservoir 22. Pump (151 / m
in) 26 is supplied through a supply oil passage 27. In the supply oil passage 27, first, oil pumped by the pump 26 is supplied to the sequence valve 2
8 through a check valve 30 to a pressure compensating distribution valve 32. The oil equally divided into two paths by the pressure compensating distribution valve 32 is supplied to the torque generators 20, 20, respectively.

The oil discharged from the torque generators 20, 20 is discharged to the oil reservoir 22 through a common discharge oil passage 33. It should be noted that a manual valve is connected in parallel with the torque generators 20, 20 so that the torque generators 20, 20 are prepared for failure.

A state in which the hopper opening / closing operation mechanism according to the present embodiment is attached to the handle 10 will be described. The input section of the torque generator is attached to a shaft of the handle 10. The output section of the torque generator 20 is attached to one end of the output shaft 40. Output shaft 4
A small gear 45 is connected to the other end of 0 so as to be able to rotate integrally with the output shaft 40. It should be noted that the shaft of the handle 10 and the output shaft 40 are directly connected when hydraulic pressure is not supplied to the torque generator 20 (the direct connection mechanism of the present invention).
Equivalent) . Since the structure of the torque generator 20 is well known, it will not be described in detail here. In this embodiment, a model TGE-A manufactured by Sumitomo Eaton Corporation is used as the torque generator 20.
Is used.

The output shaft 40 is supported by a support 14 rising from a base 80 of a hopper truck via a bearing 43. The bracket 12 extends from the support 14 and supports the exterior of the torque generator 20.

A small gear 45 connected to one end of the output shaft 40
Are engaged with the larger gear 50 having a larger diameter. The gear shaft 55 of the large gear 50 is connected to an opening / closing shaft 60 inserted below the hopper 90, and is disposed so as to rotate integrally.

The opening / closing shaft 60 is connected to a shielding plate 70 via a connecting member 65, and the rotation of the opening / closing shaft 60 causes the shielding plate 70 to slide toward and away from FIG. The shielding plate 70 is disposed immediately below the unloading port 92 of the hopper 90, and the unloading port 92 is opened and closed by sliding of the shielding plate 70. The small gear 45, the large gear 50, the gear
The shaft 55, the opening / closing shaft 60 and the connecting member 65 are the power transmission of the present invention.
Configure the mechanism.

In this embodiment constructed as described above, when the handle 10 is rotated, a torque corresponding to the amount of rotation is transmitted to the output shaft 40. That is, when the operation amount of the handle 10 enters the torque generator 20 as an input, the valve operates in the torque generator 20 and the pressure compensating distribution valve 3
The hydraulic pressure divided in 2 is supplied to the power cylinder. The output from the power cylinder is the steering wheel 10
Becomes an amplified torque according to the operation amount of the output shaft 40.
Is transmitted to

The rotation of the output shaft 40 is transmitted as the rotation of a small gear 45 connected to one end thereof. The rotation of the small gear 45 is the rotation of the large gear 50 meshing with the small gear 45. The rotation of the large gear 50 causes the gear shaft 55 and the opening / closing shaft 60 connected thereto to rotate, and slides the shielding plate 70 via the connection member 65. Unloading port 9 by sliding of shielding plate 70
2 is opened and closed.

As shown in FIG. 2, a manual valve 34 is arranged in parallel with the torque generator 20. Therefore, when any failure occurs in the torque generator 20, the manual valve 34 is opened and the hydraulic pressure is discharged through the bypass oil passage 35, so that the hydraulic pressure is not supplied to the torque generator 20. If hydraulic pressure is not supplied to the torque generator 20, the shaft of the handle 10 and the output shaft 40 are directly connected.
The operation of “0” is transmitted to the output shaft 40 as it is, and the failsafe is secured.

Although not shown in FIG. 1, each of the two torque generators 20 shown in FIG. 2 is connected to the steering wheel 10, but the above-described two structures are provided in parallel. The two handles 10, 10 allow the two shielding plates 70, 70 to slide under the unloading port 92.

As described above in detail, in this embodiment, the torque generator 20 is disposed between the handle 10 for operating the shielding plate 70 and the output shaft 40, and the torque is amplified according to the operation amount of the handle 10. Output is transmitted to the output shaft.

Accordingly, the torque amplifying action of the torque generator 20 makes it possible to easily perform the sliding operation of the extremely heavy shielding plate 70 due to the total weight of the ballast loaded in the hopper 90 by applying only a slight force to the handle 10. Can be done.

By the way, when the conventional steering operation is output as it is and transmitted from the output shaft to the shielding plate,
Three kilograms were required to rotate the handle per unit length (one meter). On the other hand, when the present embodiment is used, the weight may be 0.25 kg per unit length.

In this embodiment, since the manual valve 34 is provided in parallel with the torque generator 20,
Even if the torque generator 20 breaks down, the handle 10 and the output shaft 40 are directly connected, and the operation of the handle 10 is transmitted to the output shaft 40 as it is, and a fail-safe is also ensured.

[0025]

The hopper opening / closing operation mechanism according to the present invention, which has been described in detail with reference to one embodiment, includes a torque generator which generates an amplified torque based on the hydraulic pressure in accordance with the amount of rotation of the handle. And the power transmission mechanism.

Therefore, by rotating the handle, the torque amplified according to the amount of rotation is output from the torque generator based on the action of the hydraulic pressure, and the output is transmitted to the shielding plate via the power transmission mechanism. Then, the sliding operation of the shielding plate is performed, and the unloading port is opened and closed.

Therefore, according to the present invention, the total weight of the loaded ballast is added by the torque amplified based on the hydraulic pressure output from the torque generator, and the extremely heavy shielding plate slides, so that the unloading port is opened and closed. The turning operation of the handle at the time of performing can be easily performed with extremely light and slight force. Also adjusts the amount of rotation of the handle
The shield plate can be stopped at any position from fully closed to fully open.
So that the shield plate can be opened and closed subtly.
And it is easy to fine-tune the amount of ballast
I can do it. Furthermore, even if the torque generator fails
The hydraulic oil in the torque generator is also operated by the manual valve.
The steering wheel and the power transmission mechanism are directly connected
Therefore, the turning operation of the handle is transmitted to the power transmission mechanism as it is.
Therefore, failsafe is secured.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a main part of a hopper car to which a hopper opening / closing operation mechanism according to an embodiment of the present invention is attached.

FIG. 2 is a schematic explanatory view of a hopper opening / closing operation mechanism according to the embodiment of the present invention;

[Explanation of symbols]

10 ... steering wheel, 20 ... torque generator,
22 ... oil reservoir, 27 ... supply oil passage, 32 ...
Pressure compensating distribution valve, 33: discharge oil passage, 34: manual valve, 35: bypass oil passage, 40: output shaft,
45: small gear, 50: large gear, 55: gear shaft, 60: opening / closing shaft, 65: connecting member, 70: shielding plate, 90: hopper,
92 ... Unloading port

Claims (1)

(57) [Scope of request for utility model registration] 1. A shielding plate which is provided immediately below an unloading port at the bottom of a hopper and is slidably operated to open and close the unloading port, and a handle supported rotatably around a handle axis.
And the amount of rotation of the handle attached to the handle shaft
To the output shaft based on the action of hydraulic pressure
By transmitting the torque generator for outputting the rotation amount of the output shaft to the shielding plate,
A power transmission mechanism for slidingly operating the shielding plate, and a supply or non-supply of hydraulic pressure in the torque generator.
When hydraulic pressure is not supplied to the manual valve to be controlled and the torque generator
A direct mechanism for directly connecting said output shaft and said handle shaft
Hopper opening and closing operation mechanism, characterized in that it includes.