JPS6260305B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a washing device for a railway vehicle, and more particularly to a washing device that can effectively wipe the front or rear surface of a train car body.

BACKGROUND OF THE INVENTION Currently, as a means for cleaning the outside of a railway vehicle, an effective cleaning device has already been developed for cleaning the side surface of the vehicle, and this device is in practical use.

However, no cleaning equipment suitable for practical use is yet known for cleaning the front and rear surfaces of vehicles.Currently, cleaning the front and rear surfaces of vehicles is carried out manually. is the current situation.

By the way, when cleaning the front and rear of a vehicle manually, the work itself is not only difficult, but also dangerous, due to poor footing and work being done at heights. There are major drawbacks, and complete automation of cleaning operations is desired.

By the way, the automation of front and rear cleaning of the vehicle mentioned above,
It is also possible to use the vehicle washing device described in Japanese Patent Publication No. 49-33152, in which a vertical rotating brush is supported at the tips of two support links to wash the vehicle.

However, this prior art device uses a unidirectional tension bomb, such as a spring or a single-acting air cylinder device, as a means for applying sliding pressure to the rotating brush. Therefore, when the rotating brush is applied to the front or rear surface of the vehicle in the stopped position and the two support links are rotated, the sliding contact pressure will change due to the change in the angle of the link with respect to the vehicle. This is unavoidable and has the disadvantage of causing uneven cleaning.

It is also conceivable to use the torque motor described in Japanese Utility Model Publication No. 44-6227 as the means for rotationally driving the support link, but even though the torque motor has a function of buffering sudden shocks, There is no function to automatically adjust large changes in the sliding contact pressure based on changes in the brush arm, nor is there any suggestion of a method for adjusting the output pressure of the torque motor in accordance with the angle of the brush arm.

The drawbacks of this conventional device will be explained in detail with reference to FIG.

It is desirable that the "brush pressing force P", which is a necessary condition for the rotating brush 8' to clean the front and rear surfaces A' of the vehicle, be approximately equal at any position from X to Y in FIG.

Now in Figure 3, a = 1.0m, b ₁ = 4.0m, b ₂
Assume that = 1.0m.

The pressing force P at each position is the torque motor 1
0', the torque is generated counterclockwise around the support shaft 2b' via the output gear 10a' and the support shaft gear 2a'.

Here, torque T ₁ in X-X = L ₁ ×P ₁ Torque T ₂ in Y-Y = L ₂ ×P 2 P _{1 = P × 1} /cos θ ₁ P ₂ = P × ₁ /cos θ ₂ L ₁ = b ₁ × 1/cos θ ₁ L ₂ = b ₂ × 1/cos θ ₂ tan θ ₁ = 1/4 = 0.25 θ = 14 ° cos θ ₁ = 0.97 tan θ ₂ = 1/1 = 1 θ = 45 ° cos θ ₂ = 0.707 ∴P ₁ = P x 1/0.97 = 1.031P L ₁ = 4 x 1/0.97 = 4.124m P ₂ = P x 1/0.707 = 1.414P L ₂ = 1 x 1/0. 707=1.414m T ₁ =4.124×1.031×P=4.25P T ₂ =1.414×1.414×P=2P T ₁ :T ₂ =2.125:1 As described above, in order to keep the pressing force P constant,
Approximately twice the torque change is required in X-X and Y-Y.

Therefore, in the above-mentioned apparatus, uneven cleaning occurs approximately twice as much depending on the cleaning position on the front and rear surfaces of the vehicle. If the torque is set constant, the sliding contact pressure at the Y-Y position will become too large, causing problems with paint peeling in this area, but at the same time, the cleaning power will be weak at the X-X position. be.

The present invention has been developed in response to the above-mentioned needs, and the purpose of the present invention is to save labor in cleaning the front and rear surfaces of a vehicle, ensure safety during cleaning work, and achieve uniform cleaning. To provide a cleaning device exclusively for the front and rear surfaces of a railway vehicle that can obtain a powerful force.

The present invention will be described below based on an illustrated embodiment.

In the cleaning device of the embodiment, as shown in FIGS. 1 and 2, a pedestal 2 consisting of a cylindrical support portion formed on a rectangular substrate is installed at a location near the side of the track 1, slightly higher than the ground. and on the support part,
A support shaft 2b provided with a gear 2a is provided upright.

A box-shaped base 3a of a horizontally projecting beam 3 is pivotally supported on this support shaft 2b, and the beam 3
A hanging shaft 5a of the base 5 of the brush arm 4 is pivotally connected to the tip 3b of the brush arm 4, and a bevel 5b is pivotally connected to the hanging shaft 5a. This hanging shaft 5a constitutes a pivot shaft portion at the connection portion between the beam 3 and the brush arm 4.

The brush arm 4 is formed by a frame 6 extending horizontally on both sides of the base 5 and a fork-shaped brush holder 7 fixed vertically to one movable end of the frame 6. In 7,
A rotating shaft 9 of the rotating brush 8 is supported.

By the way, inside the base 3a of the beam 3, there is a torque motor 10, a reducer, and a motor 1 with a brake.
1, the output gear 10a of the torque motor 10 meshes with the spindle gear 2a, and the bevel 12a pivotally attached to the output shaft 12 of the motor 11 meshes with the hanging shaft bevel 5b. are doing.

Furthermore, the end portion 6a of the frame 6 of the brush arm 4
Inside, there is a motor 1 with a reducer that rotates continuously.
3 is equipped, and its output shaft 14 drives the brush rotating shaft 9 via a transmission shaft 15 and a V-belt 16.

In addition, a detection control means 17 is attached to the lower end of the frame hanging shaft 5a, that is, the rotation axis at the connection part of the beam 3 and the brush arm 4, and the detection control means 17 electrically controls the rotation angle of the brush arm 4. The signal is converted into a signal, and energization of the torque motor 10 is controlled by the signal.

Note that this cleaning device is provided with various mechanisms (not shown) that are commonly used in cleaning machines, such as a detergent application mechanism, a cleaning water injection mechanism, and a spray scattering prevention mechanism.

Next, the operation of the cleaning device of the embodiment configured as above will be described. As is clear from the above configuration, the beam 3 is driven by the torque motor 10 and rotates, and the brush arm 4 is rotated by the motor. 1
1 and turns.

First, in the device in the retracted state, the beam 3 and the brush arm 4 are both oriented parallel to the track 1, so that the device is moved out of the path of the vehicle A.

After the vehicle A to be cleaned has stopped at the predetermined position shown in the drawing, the beam 3 is turned in a direction substantially perpendicular to the track 1, the brush 8 is started to rotate, and the arm 4 is moved counterclockwise in the drawing. When the brush 8 contacts the left end of the front surface of the vehicle A with a predetermined sliding contact pressure, the output of the torque motor 10 is balanced against the load by the action of the detection control means 17, and from then on, the brush 8 Maintain pressure contact.

Therefore, the sliding contact portion of the brush 8 on the front of the vehicle is effectively cleaned.

Next, in order to move the cleaning area of the vehicle in the vehicle width direction, the brush arm 4 should be rotated one after another in the counterclockwise direction in the drawing. In this case, the sliding contact pressure of the brush will increase, but the torque motor The beam 3 is pushed back clockwise in the drawing by the increase in the load on the device 10, so that the sliding contact pressure is automatically maintained at a predetermined constant pressure value, and there is no unevenness in the cleaning power of the device.

In addition, in order to wash the opposite end surface of the vehicle A, after the vehicle A has passed, the brush arm 8 may be oriented in a direction symmetrical to that shown in the drawing, and the cleaning operation may be performed in the same manner.

It goes without saying that application of detergent and washing with water are performed between the above operations.

As described above, according to the railway vehicle cleaning device according to the present invention, the front or rear surface of a railway vehicle parked on the tracks is attached to the beam 3 pivotally supported on the pedestal 2 and the tip of the beam 3. In the apparatus which can effectively wash by bending and turning the brush arm 4 attached to the brush arm 4, the output control of the torque motor 10 for pressing the rotary brush 8 is controlled by the detection control means 17 based on the detection of the bending angle. Therefore, since the sliding contact pressure of the rotating brush 8 is kept constant over the entire width direction of the front or rear surface, there is no possibility of partial cleaning leakage or excessive cleaning occurring on the front or rear surface. This type of cleaning has the effect of uniformly cleaning the front and rear surfaces of the railway vehicle without causing any partial peeling of the paint on the front and rear surfaces of the railway vehicle.

Further, according to the front and rear surface cleaning device for a railway vehicle according to the present invention, the pivot portion of the connecting portion between the beam 3 and the brush arm 4, which constitutes the link and whose angle changes the largest due to the front and rear surface cleaning operation, has a Since the detection control means 17 that detects the turning angle and outputs the detected value as a control signal is provided, the width of the control signal can be made sufficiently large, and the output of the torque motor 10 can be controlled based on this signal. Since the sliding contact pressure of the rotating brush 8 can be corrected accurately, the above-mentioned large (approximately twice) change in the sliding contact pressure of the rotating brush 8 can be corrected accurately, and the front and rear surfaces of the vehicle can be cleaned with uniform sliding contact pressure. It has the effect of making you do this.

Furthermore, since the torque motor 10 is provided at the base of the link, that is, the base of the beam 3, its torque output can always be in the same direction, and there is no need to switch between forward and reverse torque output during front and rear cleaning. The operating mechanism is simple and the front and rear surfaces can be cleaned reliably. That is, if
If the torque motor is installed at the connection between the beam 3 and the brush arm 4, the direction of the torque output of the torque motor will be changed when the rotating brush 8 at the tip of the brush arm 4 moves past the center of the front and rear surfaces of the vehicle. It is necessary to reverse the rotation, which is not only troublesome, but also causes problems such as difficulty in cleaning the center of the front and rear surfaces.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a washing device for a railway vehicle showing an embodiment of the present invention, Fig. 2 is a developed elevational view taken along the line - - in Fig. 1, and Fig. 3 is an operation of the device of the present invention. FIG. A... Vehicle, 1... Track, 2... Frame, 3... Beam,
3a...Beam base, 3b...Beam tip, 4...Brush arm, 5...Arm base, 8...Rotating brush,
10...torque motor, 17...detection control means.

Claims (1)

[Claims] 1. The base of a horizontally extending beam 3 is pivotally supported on a pedestal 2 installed near the side of the track, and a brush arm is attached to the tip of the beam 3 so as to be able to rotate horizontally. The base of the beam 3 and the arm 4 are each held in a required turning direction based on the operating power, so that a rotating brush 8 is vertically suspended at the movable end of the arm 4. is a washing device for a railway vehicle that is formed to be able to wipe the front or rear surface of a vehicle parked on a track with a predetermined sliding contact pressure, and the base of the beam 3 is provided with the beam 3. a torque motor 10 for rotating the mount 2 with respect to the mount 2;
is provided at a pivot shaft portion at a connection portion between the beam 3 and the brush arm 4, and detects a pivot angle of the brush arm 4 with respect to the beam 3, and outputs an output of the torque motor 10 according to the detected value. A detection control means 17 for changing the pressure is provided, and the torque motor 10 is controlled by this detection control means 17.
A washing device for a railway vehicle, characterized in that the sliding contact pressure of the rotary brush 8 is kept constant regardless of the rotation angle of the brush arm 4 by changing the output pressure of the brush arm 4.