JPH0253264B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for cleaning a rail vehicle, for example in a railyard, in which the side wall of a rail vehicle is cleaned by rotating and pressing a vertical cylindrical rotating brush. It is something.

(Prior art) In the conventional cleaning method, multiple vertical cylindrical rotating brushes with the same diameter are rotated at a constant speed, and the brushes are brought into contact with the side wall of a vehicle approaching from one direction to clean the side wall. ing.

By the way, in the above-mentioned conventional cleaning method, as shown in FIG.
A counter-rotating brush B whose sliding surface in contact with the vehicle side wall rotates b in the opposite direction, and a follow-up rotating brush A whose sliding surface rotates in the following direction are used as a front and rear pair.

This is to clean the dirt blown onto the frames of windows and sliding doors while the vehicle is running. Dirt C' accumulated on the stepped portion is wiped, and dirt C'' accumulated on the concave stepped portion on the upstream side is also wiped away by the counter-rotating brush B.

(Problem to be Solved by the Invention) However, in recent years, as the speed of train operation has increased, the amount of dirt that adheres to the trains has increased in various types and amounts, and in particular, the dirt C′ and C″ on the recessed frames C of windows and sliding doors, etc., has increased in large quantities. Dirt tends to stick to dirt and is becoming difficult to remove.

Observing the state of these stains, it is found that the dirt C' on the part cleaned by the following rotating brush A is more difficult to remove than the dirt C'' on the part cleaned by the counter-rotating brush B.

As a result of various studies on the causes of this, the inventor of the present invention found that the circumferential speed of the following rotating brush A relative to the vehicle side wall 3a decreases by the speed of the vehicle compared to the added circumferential speed of the other counter-rotating brush B. Therefore, the dirt C' on one side of the recessed frame C of the window is the same as the dirt on the other side.
It was found that dirt was more difficult to remove compared to C''.

The present invention has been made in view of the above points, and an object of the invention is to clean rail vehicles by using at least one pair of vertical rotating brushes, which are rotated in opposite directions. In this method, dirt adhering to the inside of the concave frame C of windows and sliding doors, etc.
To provide a cleaning method that cleans C′ and C″ evenly and evenly on the left and right sides.

(Means for Solving the Problems) The structure of the present invention for achieving the object will be described with reference to FIGS. 1 to 5, which correspond to one embodiment.

That is, the structure of the present invention is a rail 1 for a rail vehicle.
At least one pair of vertical rotating brushes 4, front and rear, which are driven to rotate in opposite directions are installed on both sides of the rail vehicle B, and the vertical rotating brush pair 4 is pressed against the side wall of the rail vehicle B for cleaning. Among the rotating brushes forming the brush pair 4, the rotation direction of the rotation direction of the portion of the rotating brush that contacts the vehicle side wall 3a is rotated a in a direction that follows the traveling direction (A) of the vehicle 3. Number Fa
is characterized in that the rotational direction of the portion of the rotating brush that comes into contact with the vehicle side wall 3a is set higher than the rotational speed Fb of the reverse rotating brush 4B which is rotating b in the direction opposite to the traveling direction of the vehicle 3.

(Function) With the above configuration, each rotating brush is pressed against the side wall 3a of the vehicle 3 traveling in the traveling direction (A) on the rail 1, and the rotating speed of each rotating brush is changed to drive the rotating brush. Therefore, the side wall 3a of the vehicle 3
can be washed.

At this time, by making the rotation speed FA of the following rotating brush 4A rotating in a direction that follows the traveling direction (A) of the vehicle 3 larger than the rotation speed FB of the other reverse rotating brush 4B, Since the relative circumferential speed of the following rotating brush 4A with respect to the vehicle side wall 3a is faster than the relative circumferential speed of the other counter-rotating brush 4B,
The relative sliding force, that is, the cleaning power of the follower rotating brush 4A, which has decreased by the increase in the speed of the vehicle 3, is compensated for by the increase in the relative circumferential speed.
The stains C' and C'' on the left and right sides of the concave frame C are evenly cleaned.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.

First, the apparatus used to carry out the cleaning method of the present invention will be explained.

On both sides of the rail 1, cleaning devices 2, 2 are installed symmetrically on a machine stand 6.

The cleaning devices 2, 2 mainly include a plurality of vertical rotating brushes having the same diameter, the outer peripheral surfaces of which are in contact with the side wall 3a surface when the vehicle 3 travels on the rail 1. With reference to at least a pair of vertical rotating brushes 4 whose contact surfaces are rotationally driven in mutually opposing inward directions (a, b), the vertical rotating brush pairs 4 in this embodiment are as shown in FIG. As shown, two pairs on each side of rail 1,
A total of 4 pairs are installed.

Next, the vertical rotating brush pair 4 described above will be explained.

This pair of vertical rotating brushes 4 is arranged such that the direction of rotation of the portion of the rotating brushes that comes into contact with the vehicle side wall 3a is
It is formed by a following rotating brush 4A rotating in a direction that follows the traveling direction (A) of Number of revolutions
The relationship between Fa and the rotation speed Fb of the counter-rotating brush 4B is as follows:
Fa > Fb.

In addition, each of the above-mentioned rotating brushes is supported between the top and bottom of its rotation center axis between the tips of the vertical swing arm 5,
The base end of the vertically rotating arm 5 is connected to the side wall of each rotating brush.
It is fixed to a pivot shaft 7 that stands upright on a machine base 6.

Further, each of the vertically rotating arms 5 is urged by a torque motor or the like so as to push each rotating brush against the vehicle side wall 3a with a predetermined torque pressure.
8 is an outer wall plate of the cleaning device 2.

FIG. 4 shows a control circuit for controlling the rotation of the pair of vertical rotating brushes 4. As shown in FIG. In the same circuit, 1
Reference numeral 0 denotes a power supply for use, and reference numeral 11 denotes a frequency converter that is installed in a branch path of the commercial power supply and converts the frequency of the commercial power supply. For example, commercial power frequency 50/6
0Hz, frequency converter input/output frequency 63.89/76.67Hz
shall be. MSA is the A direction switch, and vehicle 3
is activated by the A direction cleaning signal that detects that the brush enters the cleaning device 2 from the direction A in FIG. , and the reverse rotating brush 4B (motor thereof) is driven to rotate relatively slowly due to the frequency of the commercial power supply 11 power. MSB is a B-direction switch, which is activated by a B-direction cleaning signal that detects that the vehicle 3 is approaching from direction B in Figure 1, and reversely changes the rotation speed of the rotating brush pair. However, the rotating brush on the side that follows the direction of travel of the vehicle is rotated faster than the rotating brush on the opposite side, as described above.

In the above configuration, when the vehicle 3 enters the cleaning device 2 along the rail 1 from the traveling direction A, the vehicle 3
The cleaning device 2 is activated by the A-direction cleaning signal, and the cleaning method of the present invention is performed.

That is, the vertically rotating arm 5 rotates to bring the following rotating brush 4A and the reverse rotating brush 4B into contact with the side wall 3a of the vehicle 3 with a predetermined torque pressure, and
The following rotating brush 4A and the reverse rotating brush 4B are rotationally driven so that their rotational directions are inwardly facing each other (a, b direction).

At this time, the A direction switch MSA is activated,
Since the rotation speed Fa of the follow-up rotating brush 4A is larger than the rotation speed Fb of the counter-rotating brush 4B, the circumferential speed of the follow-up rotating brush 4A is faster than the circumferential speed of the counter-rotating brush 4B. , the cleaning power of the follow-up rotating brush 4A is compensated for by the increased speed of the vehicle 3.

Here, as shown in FIG. 5, a counter-rotating brush 4B installed on the downstream side in the traveling direction (A) of the vehicle 3 removes dirt C on the upstream side of the recessed step on the side of the recessed frame C of the window. '' is wiped and cleaned, and the downstream side is cleaned by the following rotating brush 4A on the upstream side.
C′ is washed.

By the way, as explained with the drawing, the cleaning power (relative circumferential speed) of the upstream follow-up rotating brush 4A is:
As the vehicle 3 moves forward, the cleaning power decreases compared to the cleaning power of the counter-rotating brush 4B, but since the rotation speed Fa of the follow-up rotating brush 4A increases and its circumferential speed increases, the dents in the window are reduced. Dirt C′ on the left and right concave steps of frame C,
C″ is evenly cleaned and there is no uneven cleaning.

Also, when the vehicle 3 enters the cleaning device 2 from the direction B opposite to the above, the B direction cleaning signal causes the
Direction switch MSB is activated and the same cleaning as above is performed.

In this way, by performing the cleaning method of the present invention using the control circuit of the embodiment, it becomes possible to reciprocate cleaning of the vehicle.

Next, an example of the relationship between the rotational speeds Fa and Fb of the rotating brush and its circumferential speed (that is, cleaning power) will be shown.

In the following, the follow-up rotating brush will be referred to as the A brush, and the reverse rotating brush will be referred to as the B brush.

Γ brush basic circumferential speed 600 m/min (applicant's standard) Vehicle speed during Γ cleaning 5000 m/hour, Γ A brush efficiency = basic circumferential speed - cleaning speed 600 - 5000/60 = 516.67 m ÷ 600 = 86.11% Γ B brush Efficiency = basic peripheral speed + cleaning speed 600-5000/60 = 683.33÷600 = 113.33% Cleaning efficiency difference of A brush against ΓB brush 516.67/683.33 = 75.61% Decrease peripheral speed of A brush against ΓB brush is 683.33-516.67= 166.67 m/min The increase in the rotation speed of the ΓA brush is (in the case of a brush diameter of 800φ) (600 + 166.66) / 0.8 × 3.14 = 305.2 rotations / minute The rotation speed of the ΓB brush is (in the case of a brush diameter of 800φ) 600 / 0.8 × 3.14 = 238.85 rotations/min As shown above, the rotation speed Fa of brush A is 305.2 rotations/min, and the rotation speed Fb of brush B is 238.85 rotations/min.
From the relationship when expressed in minutes, increasing the rotation speed Fa of brush A by about 66 revolutions/minute becomes a theoretical cleaning method, and the relational expression Fa>Fb=305.2>238.85 holds true.

(Effects) As explained above, according to the present invention, the uneven cleaning that occurs between the left and right frames of the recessed part of a window or sliding door on the side wall of a vehicle can be corrected by a simple method, and the uneven cleaning that occurs on the side wall of the vehicle can be corrected. It has the excellent effect of eliminating

[Brief explanation of drawings]

Fig. 1 is a schematic plan view of a cleaning device for a rail vehicle for implementing the method of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a front view of the same, and Fig. 4 is a schematic plan view of the same rotation. Brush rotation speed control circuit FIG. 5 is an explanatory diagram showing a cleaning state of a recessed part of a vehicle to explain the effect of the present invention. 3...Vehicle, 3a...Vehicle side wall, 4...Vertical rotating brush, 4A...Following rotating brush, 4B...Reverse rotating brush, 10...Commercial power supply, 11...Frequency converter, a, b... Rotation direction, C... Concave frames of windows and sliding doors, etc., C', C''... Dirt.

Claims (1)

[Claims] 1. In a method for cleaning a rail vehicle by pressing at least one pair of vertical rotating brushes, which are driven to rotate in opposite directions, against the side wall of a rail vehicle running on a rail, the rotation forming the rotating brush pair. The rotating direction of the part of the brush that touches the side wall of the rotating brush rotates in a direction that follows the direction of travel of the vehicle. A method for cleaning a rail vehicle, characterized in that the number of revolutions is greater than that of a counter-rotating brush that rotates in a direction opposite to the direction of travel of the vehicle.