JPS62241702A - Adhesive granule applying device for railway train - Google Patents

Abstract

PURPOSE:To permit the correct injection free from the dispersion of adhesive granules by permitting the adhesive granules to be jetted in the state surrounded by the air curtain of the compressed air, in the injection of the adhesive granules together with air between a wheel and a rail. CONSTITUTION:A storage container 9 for storing adhesive granules 10 is supported onto the dolly 3 of a railway train, and the adhesive granules 10 in the container 9 are introduced into a U-shaped storage chamber 14 through a pipe 13. A connecting member 16 having the first penetration hole 16a whose one edge is opened an angle of about 60 deg. is connected with the storage chamber 14, and a powder feeding pipe 17 is connected to the penetration hole 16a, and a compressed-air feeding pipe 18 is connected so as to surround the pipe 17. The compressed air supplied from the second penetration hole 16b is jetted in annular form from the air feeding pipe 18, and the adhesive granules 10 jetted onto the contact surface between a train wheel 1 and a rail 2 from the powder feeding pipe 17 are surrounded by the compressed air.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an adhesive increasing device for a railway vehicle that increases the adhesive coefficient between the wheels and the rail of the railway vehicle.

[Conventional technology]

Figure @5 shows the adhesive thickening device for railway vehicles shown in Japanese Patent Application Laid-open No. 63703. m is iron wheel, (21-keel rail, i3+I'! Taito, (4)-kei is supported on bogie (3) A container for storing the fine powder (7), which is a pipe for supplying the fine powder (7) to the contact surface between the iron east wheel i1+ and the rail (21). An opening is provided opposite the contact surface between fi+ and rail +21.

Further, by using a pipe (6) installed in parallel with the pipe (51), a weak air pressure is activated by a solenoid valve (81f) to blow the fine powder (7) onto the contact surface.

Note that the particle size of the fine powder (7) used is 10 to 100 microns.

[Problems to be solved by the invention] In the conventional method for increasing the adhesion of railway vehicles, particles with a particle size of 10 to 10
Since the fine powder of 0 micron was sprayed onto the contact surface between the wheels and the rails using weak air pressure, the direction of flow of the fine powder could be changed if there was a crosswind while driving, or if turbulence occurred due to the running of the vehicle. It had the disadvantage that it could not reach the target location accurately when it was hit in a bent direction.

The great invention was made to solve the above-mentioned problems. Therefore, it was aimed to obtain a tackifying device for a railway vehicle that can reduce the curvature of the blown trajectory of tackifying particles even when subjected to crosswinds. This is the purpose.

[Means for solving problems]

In the adhesive thickening device according to the present invention, a first duct is connected to a storage chamber for thickening shoulder particles, and a second duct having a larger cross section than the first duct surrounds the first duct to form an X1Sl duct. The second duct is provided so as to protrude from the second duct so that compressed air can be injected from the second duct.

[Effect]

In the tackifier of the present invention, when the tackifier particles are injected, air is supplied to the second duct. In this case, due to the difference in length between the first duct and the second duct, the viscosity-enhancing particles cannot be guided from the storage chamber to the first duct due to the viscosity of the injected air and the pressure difference. 1
It is injected together with compressed air where there is a difference in length between the first duct and the second duct. At this time, a second duct that allows compressed air to pass outside the first duct that allows the adhesion-enhancing particles to pass through.
Because the duct forms a double-walled duct, the air curtain effect of the compressed air prevents the adhesion-enhancing particles from spreading and scattering, allowing them to be accurately supplied to the target area between the wheels and the rail.

〔Example〕

An embodiment of the present invention will be described below.

In Figs. 1 and 2, (1+ to (3)) are the same as before. (91 is a storage container in which adhesion-enhancing particles +101 are stored. In addition, adhesion-increasing particles (!0) are particle diameters. is 1
A material that can exhibit the effect of increasing adhesion, such as a mixture of sand of 0.00 to 500 micron with quartz over sand and quartz, is used. 0υ is a solenoid valve that controls the supply of compressed air,
QljFF Air supply pipe for supplying compressed air, (13 is a transport pipe for transporting adhesive particles (10), α, 4JH mounting plate (
It is a U-shaped storage chamber fixed to the trolley (3) via the pipe (to) and connected to the storage container (91) by the transport pipe (to). One end is opened with a 60" jump. The connecting member has a first through hole (16 & ) connected to the storage chamber 04), and a second through hole (16b) communicating with the first through hole (16a) connects the supply g! pipe U. αη is a powder supply pipe whose one end is connected to the storage chamber α4 via the connecting member αe1;
The compressed air supply pipe is connected to the powder supply pipe (lη), and the tip thereof is 7.5!

In the above configuration, when the solenoid valve αυ is in the closed state and the compressed air supply pipe (when compressed air is not supplied to the grains, the storage chamber a4
Since the adhesion-enhancing particles (lO) in the powder are kept at rest due to the angle of rest, they are not discharged from the powder supply pipe αη.

Next, a case in which tackifying particles (!0) are jetted will be explained. first,! @Valve αB is energized and opened, and compressed air is injected from the compressed air supply pipe 0 seconds through the air supply pipe 02'5r-. Then, due to the effect of the viscosity and pressure difference of the air injected from the front part of the compressed air supply pipe (181), the adhesion-enhancing particles tio+' in the storage chamber αΦ are injected together with the compressed air through the powder supply pipe αη. In this case,
Since the compressed air guided by the compressed air supply pipe Q is injected from around the powder supply pipe αη, the air curtain effect of the compressed air causes the adhesion-enhancing particles (10)H! ! The particles are supplied between the wheel 11+ and the rail (2) without scattering like the sprayed particles (log) shown in FIG.

For example, when the distance between the powder supply pipe (171 and the compressed air supply pipe Q8) is Q, 5 mm to 1.5 mm, and the pressure of the compressed air is 5 kg/aml, this injection speed is 200 kg/aml.
It is 4300m/sea. In order to stop the injection of the adhesion-enhancing particles (101), it is sufficient to stop the supply of compressed air to the compressed air supply pipe OF!J.

Figure 3 shows the tip of the hull supply pipe αη and the tip of the compressed air supply pipe (to) when the inner diameter of the powder supply pipe αη is 3 mm and the distance between the powder supply pipe αη and the compressed air supply pipe agJ7 is 1 mm. This is data showing how the difference t from t to t affects the injection fl (aa/sea) and the attainment efficiency. The reaching moving point is the ratio of the amount of adhesion-enhancing particles that reached the target with a diameter of 5 Qmm at a position 250 mm away from the tip of the compressed air supply pipe 0& and the total amount of injection from the powder supply pipe α7). be.

From the point of view of reaching efficiency, the difference in the tip of the injection tube is 7.5 mm.
~25mm is good. That is, the inner diameter d (m
m), the tip difference of the supply pipe is t-(3 to 8
)Xd(n+a+).

FIG. 4 shows the total injection amount (co/sθC) when the inner diameter of the powder supply pipe αη is changed, with the distance between the powder supply pipe αη and the compressed air supply pipe 081 being m. In this figure, for example, when the inner diameter of the powder supply pipe αη is 3 mm, the total injection @ 7.5
oo/sea. From Fig. 3, the attainment efficiency is about 50, so if we assume the distance between the wheel [11 and the rail (21] to be 250111ff+, it is about 3.8aa/sec.
reaches between the wheel 11) and the rail (21).

In addition, in the above example, the time from energizing the solenoid valve α°C until the adhesion-enhancing particles (lO) reached between the wheel (1) and the rail (2) was within 0.1 sea. .

〔Effect of the invention〕

According to this invention, since the adhesion-enhancing particles are injected while being surrounded by an air curtain of compressed air, the adhesion-increasing particles can be accurately supplied between the wheels and the rails without scattering.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a configuration diagram showing an embodiment of the present invention, Fig. 2 is a cross-sectional view showing the main part of Fig. 1, and Fig. 3 is a tip difference t of the meat supply pipe.
An explanatory diagram showing the relationship between the injection amount, the achieved amount, and the achieved efficiency,
FIG. 4 is an explanatory diagram showing the relationship between the inner diameter of the powder supply pipe and the total injection amount, and FIG. 5 is a configuration diagram showing a conventional tackifier. In Figure 1ζ, 1lld wheel, (2) rail, UO+
1 is the adhesion particle, 1 is the storage chamber, 11? ) is the powder supply pipe,
(to) is the compressed air supply pipe. In each figure, the same reference numerals indicate the same or corresponding parts.

Claims (7)

[Claims] (1) In a device that injects adhesion-enhancing particles together with air between a wheel and a rail surface, one end of the powder supply pipe is connected to a storage chamber in which adhesion-increasing particles of a predetermined particle size are stored, and the powder is A compressed air supply pipe having a larger cross-sectional area than the supply pipe surrounds the powder supply pipe and is provided so as to protrude from at least the other end of the powder supply pipe, so that compressed air can be injected from the compressed air supply pipe. An adhesive increasing device for a railway vehicle, characterized in that: (2) The adhesive increasing device for a railway vehicle according to claim 1, wherein the powder supply pipe has an inner diameter of 2.5 mm to 5 mm. (3) The distance between the powder supply pipe and compressed air supply pipe is 0.5m.
The adhesive increasing device for a railway vehicle according to claim 1 or 2, wherein the adhesiveness is 1.5 mm from m. (4) The railway vehicle according to any one of claims 1 to 3, wherein the length of the compressed air supply pipe protruding from the powder supply pipe is 7.5 mm to 20 mm. Adhesion increasing device. (5) The adhesive increasing device for a railway vehicle according to any one of claims 1 to 4, wherein the storage chamber is connected to the lower side of the powder supply pipe. (6) Set the opening angle of the connection part of the powder supply pipe to the storage chamber to 90
Claims 1 to 3 are characterized in that:
The adhesive increasing device for a railway vehicle according to any one of Item 4. (7) A patent claim characterized in that sand with a particle diameter of 100 microns to 500 microns accounts for 50% of the total adhesion-enhancing particles, and the maximum particle diameter is 1/10 or less of the inner diameter of the first duct. The adhesive increasing device for a railway vehicle according to item 1.