JPH09105102A - Ball receive device of tongue rail in point of rail roard track - Google Patents

Abstract

PROBLEM TO BE SOLVED: To omit bothersome maintenance works, by closing the opening of a casing body with a cover plate to prevent bottom seat balls and a large- diameter rotatable ball from getting out of place and projecting a part of the large-diameter ball from the opening of the cover plate to serve as a rolling support face. SOLUTION: A specified number of same and small-diameter bottom seat balls 4 are arranged so as to roll on the support face 3 provided in a casing body 2. The opening 6 of the body 2 is covered with a cover plate 7 to prevent the balls from getting out of place. At the same time, a part of a rotary large- diameter ball 5 is projected from the opening of the cover plate 7 and the inside of the cover plate 7 is forced to contact the outer face of ball. Subsequently, a packing 9 sealing the rotatable ball 5 and having water repellent and dustproof properties and avoiding the rotary resistance as much as possible is arranged. For the purpose, a water drain hole 10 is opened on the support face 3. Since the tongue rail moves on the bearing, the frictional resistance with the floor plate is remarkably reduced. In this way, the changeover of a point can be smoothly executed with a small operating force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tongue rail ball receiving device at the point of a railway track.

[0002]

2. Description of the Related Art Conventionally, this type of tongue rail at the point of a railroad track is slidably supported on an iron floor plate having a required area in a planar shape, and the floor plate is called a tongue rail. Lubricating oil is applied to the surface to reduce frictional resistance.

[0003]

The above-mentioned conventional iron floorboards need to be cleaned and replenished with lubricating oil every day or every few days, and the lubricating oil must be sufficiently placed and placed on the surface thereof. A lot of work is required for maintenance work.

Further, since the floor plate is exposed to the lubricating oil and exposed, it is easy to ignite and a fire may occur.

[0005]

A casing main body having a hemispherical concave recess bearing surface for rolling and arranging a required number of bottom seat balls of the same small diameter, and a roll for rollingly accommodating and arranging on the bottom seat ball on the casing main body. The large-diameter ball and the casing-based opening are closed by a lid plate to prevent the bottom seat ball and the rolling large-diameter ball from coming off, and a part of the rolling large-diameter ball is projected outward from the opening in the lid plate for rolling contact. It is a ball bearing device of Tonglare at the point of the railroad track, which is characterized as a bearing surface.

The bottom surface of the casing body may be used as the entire mounting support surface.

A collar portion is provided on the outer periphery of the upper half of the casing body,
The lower surface may be the entire mounting bearing surface.

On the outside of the lid plate, a packing may be attached to the outer surface of the ball having a large diameter turned inside, and a sealing cover having an opening through which the ball having a large diameter passed through is provided outside the packing.

A hemispherical recessed bearing surface is provided on the casing main body, and a required number of bottom seat balls of the same small diameter rolling on this bearing surface are arranged. The rolling large diameter balls are accommodated on the bottom seat balls to form the rolling large diameter balls. The inner lid plate with the adapted opening closes the casing main body opening to prevent the bottom seat ball from coming off, and a part of the rolled large-diameter ball projects outward from the opening of the inner lid plate to the outside. A packing may be arranged, and a lid plate may be arranged on the outer side of the packing to support the packing and also to prevent the rolled large diameter ball from coming off.

A hemispherical ball receiving bowl obtained by press-molding a casing main body having a hemispherical recessed bearing surface into a box-shaped casing with a steel plate of a required thickness, a middle tube stand for bearing support on its bottom surface, and a hemispherical recessed bearing surface. An upper bottom seat ball and a packing packing for rolling large-diameter balls are accommodated and arranged, and the box-shaped casing is a box-shaped main part casing for internally connecting and accommodating a hemispherical ball bowl and a middle cylinder stand, and an upper edge thereof. It is composed of a lid casing that is integrally wound around the molded flange portion from the outside and integrally connected, and that has an inner lid provided with a ring groove on the inner peripheral surface of the lower edge and that houses an inner lid fitted with a sealing packing inside. The box-shaped casing may be configured such that an intermediate support plate that restricts the bottom seat ball is sandwiched and housed between the hemispherical ball receiving bowl and the inner lid.

A drain hole may be provided on the hemispherical concave bearing surface of the casing body.

A box-shaped casing for accommodating the casing main body may be provided with a drainage hole.

A fixing band having a required elasticity may be wound around the outer periphery of the casing main body or the box-shaped casing for accommodating the casing main body so as to prevent the fixing band from coming off from the mounting hole of the floor plate.

The fixing band is formed by pressing ridges on a strip steel plate at a required interval, curving the entire body to reduce the diameter to an annular shape, and mounting the outer periphery of the casing main body or a box-shaped casing accommodating the casing main body elastically. It's good.

In the ball receiving device arranged in the separated bearing portion of the floor plate, the bearing surface constituted by each apex of the turning large diameter ball is set slightly higher than that of the conversion bearing portion, and when the tongue rail moves back, it rises. It may be supported.

[0016]

In the ball bearing device of the present invention, since a plurality of ball bearings are provided on the floor plate as described above, the tongue rail moving on the ball bearing has a significantly reduced frictional resistance with the floor plate. In comparison, the points can be smoothly converted with a small operation force.

Further, since the ball bearing is used, it is possible to save labor such as the conventional maintenance which involves repeating cleaning and replenishing the lubricating oil on the floor plate every day or every several days.

Further, since a considerable amount of lubricating oil does not stay on the floor plate and the roadbed, there is no possibility of fire.

A collar portion is provided on the outer periphery of the upper half of the casing body,
Since the lower surface is connected to the surface of the floor plate to form the entire mounting bearing surface, the bearing surface of the rolled large diameter ball can be accurately provided at a preset height.

Further, since the packing is brought into contact with the outer surface of the turning large diameter ball, it is possible to prevent rainwater, dust or other turning-inhibiting substances from entering as much as possible.

Further, since the hemispherical recessed bearing surface of the casing is provided with a water drainage hole, it is possible to drain the intruding water and to smoothly rotate the large diameter ball and the bottom seat ball for a long period of time. is there.

Further, in the case where the casing main body is accommodated in the box-shaped casing, the box-shaped casing is also provided with the water drainage hole, so that the moisture is not stored in the inside and is discharged for a long period of time. It can be applied to smooth rolling balls and seat balls.

Further, since the ball receiving device is wound around the outer periphery of the elastic holding band and is driven into the mounting hole of the floor plate and is fixed by utilizing the repulsive force, it is not loosened by the vibration generated every time the train passes. Is. In particular, in the case where the steel plate is provided with the ridge, the ridge exerts a strong spring action to integrally fix the floor plate and the ball receiving device.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION A casing main body having a hemispherical concave recess bearing surface for rolling and arranging a required number of bottom balls having the same small diameter, and a rolling large diameter for rollingly accommodating and arranging on a bottom ball on the casing main body. The bottom plate and the rolling large-diameter ball are prevented from coming off by closing the ball and the casing main body opening with the lid plate, and a part of the rolling large-diameter ball is projected outward from the opening of the lid plate to form the rolling contact bearing surface. The Tongreir ball-receiving device at the point of the railway track is characterized by

[0025]

1 is an external view of a ball receiving device 1 of a first embodiment of the ball receiving device of the present invention, the internal structure of which is shown in FIG. A required number of base balls 4 of the same small diameter that roll-contact the provided hemispherical concave bearing surface 3 are arranged, and rolling large-diameter balls 5 are placed on the base balls 4.
And the opening 6 of the casing main body 2 is closed by a cover plate 7 to prevent the bottom seat ball 4 from coming off, and a part of the rolled large diameter ball 5 is projected outward from an opening 8 in the cover plate 7. Inside the lid plate 7, the inner diameter 9a is the rolling large diameter ball 5
A packing having water repellency and dustproof property for contacting the outer surface of the ball and sealing the rolling large-diameter ball 5 in a freely rotatable manner, and not giving rotational resistance as much as possible, for example, an oil-impregnated felt packing 9. It is a thing. A water drain hole 10 is formed in the hemispherical recess bearing portion 3.

In the ball receiving device 1 of the first embodiment,
The flange 11 may be provided on the outer periphery of the upper half and the lower surface 11a may be used as the entire mounting bearing surface, but the bottom surface 2a of the casing main body 2
Can be used as the entire mounting bearing surface.

FIG. 3 shows a ball receiving device 1a according to a second embodiment of the present invention, and like the first embodiment,
The casing main body 2 is provided with a hemispherical recessed bearing surface 3, a required number of bottom balls 4 of the same small diameter rolling on the bearing surface 3 are arranged, and a large rolling ball 5 is accommodated on the bottom ball 4 and a large rolling ball is formed. The opening 6 of the casing main body 2 is closed by an inner lid plate 13 having an opening 12 adapted to the diameter ball 5 to prevent the bottom seat ball 4 from coming off. Part of the oil-impregnated felt packing 9 is arranged on the outer side thereof, and the oil-impregnated felt packing 9 is supported on the outer side of the oil-impregnated felt packing 9.
The cover plate 7 also serves as a stopper.
Of course, the hemispherical concave bearing surface 3 is provided with a water drain hole 10 and the lower surface 11a or the bottom surface 2a of the collar 11 is used as the entire mounting bearing surface.

FIGS. 4 and 5 show a ball receiving device 1b according to a third embodiment of the present invention, which is a casing main body 2 having the hemispherical concave recess bearing surfaces 3 of the first and second embodiments.
Is a box-shaped casing 14, for example, a hemispherical ball bowl 15 press-molded with a steel plate of a required thickness, a middle cylinder stand 16 connected to and supported by the bottom surface of the bowl, and a bottom seat ball 4 on the hemispherical recess bearing surface 3. And sealing packing 19 for turning large-diameter ball 5
Is accommodated and arranged.

The box-shaped casing 14 is wound from the outside around a box-shaped main portion casing 14a in which the hemispherical ball receiving bowl 15 and the middle cylinder stand 16 are connected and housed inside, and a collar portion 17 formed on the upper edge thereof. And a lid casing 14b for accommodating the inner lid 20 in which the ring groove step portion 18 is provided on the inner peripheral surface of the lower edge and the sealing packing 19 is fitted inside, and
The box-shaped casing 14 as a whole accommodates and holds an intermediate support plate 21 for restricting the bottom seat ball 4 between a hemispherical ball receiving bowl 15 and an inner lid 20. Of course, the hemispherical ball receiving bowl 15 and the box-shaped main portion casing 14a are provided with drainage holes 22 and 23, respectively.

6 and 7 show an embodiment of the fixing band 24. For example, as shown in FIG.
When the ball receiving device 1, 1a, 1b is inserted into the mounting hole 6, the mounting hole 2
6 inner diameter surface and casing main body 2 or box-shaped casing 1
4, an elastic clamping force is generated between them and the pull-out preventing action is performed upward. The structure is such that the ridges 27 are formed on a strip steel plate having a desired thickness at predetermined intervals, for example, by press molding to form rows, and the whole is curved to form an annular shape. Therefore, when mounting on the ball receiving device 1, 1a, 1b, the inner diameter of the ball receiving device is expanded, for example, the box-shaped casing 14 is mounted, and the mounting hole 26 of the floor plate 25 is in contact with, for example, the lower surface 11a of the collar portion 11. Then, the projecting ridge 27 is pressed and the repulsive force provides a clamping force.

FIG. 8 is a side view showing an embodiment in which the ball receiving device 1 (1a, 1b) is mounted on the floor plate 25, and FIG. 9 is a plan view. In the floor plate 25, the tongue rail 28 is the basic rail 29.
Has a conversion support portion 25a which is supported at a position contacting with the base rail 29, and a separation support portion 25b which retracts away from the basic rail 29 and does not perform a conversion action. As described above, the separation support portion 25b has a ball receiving device. 1 (1a, 1b) are arranged at required intervals.

In the ball bearing device 1 (1a, 1b) arranged in the spaced-apart bearing portion 25b of the floor plate 25, the bearing surface constituted by the vertices of the large-diameter rolling balls 5 is set to be slightly higher than the conversion bearing portion 25a. When the tongue rail 28 retreats, it rises and is supported. How far the bearing position of the tongue rail 28 in the conversion bearing portion 25a is separated and how high it is determined depends on the diameter of the large diameter ball 5 to be turned and various other conditions.

The ball receiving devices 1, 1a, 1b may be arranged on all of them in the sleeper 30, but may be arranged one by one, or by two, etc. within a range where there is practically no problem. Of course it's good.

[0034]

[Effect] Since the ball bearing device of the present invention is as described above, since the tongue rail moves on the ball bearing provided on the floor plate, the frictional resistance with the floor plate is significantly reduced, and the tongue rail is compared with the conventional one. Thus, the points can be smoothly converted with a small operation force.

Further, since the ball receiving device is a ball bearing, it is possible to save troublesome maintenance such as repeating the cleaning and replenishing the lubricating oil on the floor plate every day or every several days as in the conventional case. Is.

Further, since a considerable amount of lubricating oil does not stay on the floor plate and the roadbed, there is no possibility of fire.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a ball receiving device of the present invention.

FIG. 2 is likewise a central longitudinal sectional view of the first embodiment.

FIG. 3 is a central longitudinal sectional view of a second embodiment of the ball receiving device of the present invention.

FIG. 4 is a central longitudinal sectional view of a third embodiment of the ball receiving device of the present invention.

FIG. 5 is also an exploded perspective view of the third embodiment.

FIG. 6 is an external perspective view of a fixed band alone.

FIG. 7 is an external view showing a state in which the fixing band is attached to the ball receiving device.

FIG. 8 is a side view showing a state in which the ball receiving device of the present invention is mounted on a floor plate.

FIG. 9 is a partial plan view showing an example of points for implementing the ball receiving device of the present invention.

[Explanation of symbols]

 1 ball receiving device 1a ball receiving device 1b ball receiving device 2 casing main body 2a bottom surface 3 hemispherical concave recess bearing surface 4 bottom seat ball 5 rolling large diameter ball 6 opening 7 lid plate 8 opening hole 9 oil-impregnated felt packing 9a inner diameter 10 drain hole 11 Collar 11a Lower surface 12 Opening 13 Inner lid plate 14 Box type casing 14a Box type main part casing 14b Lid casing 15 Hemispherical ball receiving bowl 16 Middle tube stand 17 Collar section 18 Ring groove step section 19 Sealing packing 20 Middle lid 21 Middle support plate 22 Drain hole 23 Drain hole 24 Fixing band 25 Floor plate 25a Conversion support part 25b Separation support part 26 Mounting hole 27 Projection 28 Tong rail 29 Basic rail 30 Sleepers

Claims (11)

[Claims] 1. A casing main body having an inner surface having a hemispherical concave recess bearing surface for rolling and arranging a required number of bottom balls of the same small diameter, and a rolling large-diameter ball rollingly accommodated on the bottom ball on the casing main body. , The opening of the casing is closed by the lid plate to prevent the bottom seat ball and the rolling large-diameter ball from coming off, and a part of the rolling large-diameter ball is projected outward from the opening of the lid plate to form the rolling contact bearing surface. The Tongleir ball receiving device at the point of the railway track. 2. The tongue rail ball receiving device according to claim 1, wherein the bottom surface of the casing main body serves as an entire mounting bearing surface. 3. A ball bearing device for a tongue rail at a point of a railway track according to claim 1, wherein a flange portion is provided on the outer periphery of the upper half of the casing main body, and the lower surface thereof serves as the entire mounting bearing surface. 4. A sealing cover having an opening for contacting the packing with the outer surface of the large-diameter ball having an inner diameter and having an opening for allowing the large-diameter ball to pass therethrough is attached to the outside of the lid plate. The ball bearing device of the tongue rail at the point of the railway track according to claim 1, claim 2, or claim 3. 5. A hemispherical concave recess bearing surface is provided on the casing main body, and a required number of bottom balls with the same small diameter rolling on this bearing surface are arranged, and a rolling large diameter ball is accommodated on the bottom seat ball. By closing the opening of the casing main body by an inner lid plate having an opening adapted to the ball to prevent the bottom seat ball from coming off, a part of the rolled large diameter ball projects outward from the opening of the inner lid plate, A tongue rail ball receiving device at a point of a railroad track, characterized in that a packing is arranged on the outside, and a packing plate that supports the packing on the outside and also serves as a stopper for preventing the rolling large-diameter balls from coming off is arranged. . 6. A hemispherical ball receiving bowl obtained by press-molding a casing main body having a hemispherical recessed bearing surface into a box-shaped casing with a steel plate having a required thickness, a middle tube stand for articulating and supporting the bottom surface, and a hemispherical recessed portion. A box-shaped main part casing for accommodating and accommodating a bottom seat ball on a bearing surface and a sealing packing for rolling large-diameter balls, and the box-shaped casing for connecting and housing a hemispherical ball bowl and a middle cylinder stand inside, It is composed of a lid casing that is integrally wound around the brim formed on the rim from the outside and integrally connected, and has an inner groove having an inner peripheral surface on the lower edge and a sealing packing fitted therein. , The box-shaped casing holds a center support plate for controlling a bottom ball between a hemispherical type ball receiving bowl and an inner lid so as to be housed therein. 7. The drainage hole is provided in the hemispherical concave recess bearing surface of the casing main body, and the drainage hole is provided in claim 1, claim 2, claim 3, claim 4, claim 5 or claim 6. Tongle rail ball receiving device at the point of the railway track. 8. A drainage hole is provided in a box-shaped casing for accommodating the casing main body.
A tongue rail ball receiving device at the point of the railway track according to claim 2, claim 3, claim 4, claim 5, claim 6, or claim 7. 9. A fixing band having a required elasticity is wound around the outer periphery of the casing main body or a box-shaped casing for accommodating the casing main body to prevent the fixing band from coming off from the mounting hole of the floor plate. 1, claim 2, claim 3, claim 4, claim 5, claim 6, claim 7, or claim 8.
Ball bearing device of Tonglare at the point of the railway track in the country. 10. The fixing band is formed by press-forming ridges on a strip steel plate at a required interval, curving the entire body to reduce the diameter into an annular shape, and elastically attaching an outer periphery of the casing main body or a box-shaped casing accommodating the casing main body. Claim 1, characterized in that
Claim 2, Claim 3, Claim 4, Claim 5, Claim 6,
A tongue rail ball receiving device at the point of the railway track according to claim 7 or claim 8. 11. A bearing surface formed by each apex of a rolling large-diameter ball in a ball bearing device arranged in a separated bearing portion of a floor plate is set slightly higher than a conversion bearing portion, and is raised when the tongue rail retreats. 1, claim 2, claim 3, claim 4, claim 5, claim 6, claim 7, claim 8, claim 9, or claim 1 characterized in that
Tongle's ball receiving device at the point of 0 railroad track.