JP4629966B2 - Heater device for floor plate of switch - Google Patents

Description

  The present invention relates to a heater device for a floor plate of a switch that melts and removes snow that has fallen on the floor plate of the switch.

  For a long time, in order to melt and remove the snow on the switch, Kantera was placed under the floorboard and the floorboard was heated to combustion heat. However, Kantera has the disadvantages that the amount of combustion heat cannot be adjusted due to its structure, and that the combustion part and the tank part are integrated, the fuel capacity is small, and the combustion duration is limited. In place of this Kantera, a heater by constant electricity supply has been proposed, and in order to increase its thermal efficiency, a proposal has been made (in Japanese Utility Model Application No. 60-76101) in which a surface heating element incorporating a heater is installed in the floor plate. However, there is a disadvantage that the cost is increased because a large hollow portion is cut out and formed on the floor plate, and a floor plate for making up for the lack of strength is enlarged, so that the compatibility with the floor plate of the conventional switchboard is lost.

In the ball receiving floor plate of a rolling mill disclosed in Japanese Patent Application Laid-Open No. 9-195201, the ball receiving portions are scattered on one surface, so that the accommodation space cannot be secured. Therefore, Japanese Patent Application No. 2002-198126 has been proposed to improve such drawbacks.
Shokai 60-76101 JP-A-9-195201

In Japanese Patent Application No. 2002-119826 proposed by the present patent applicant, in the heating relationship between the heater 3 and the floorboard body 1, it is necessary to reduce the air in the interval between the heater hole 2 and the heater 3 as much as possible in order to increase the heat transfer efficiency. The accuracy of the gap 4 is required. For this reason, although the heat transfer efficiency to the floor board main body 1 increases, since air exists in the space | gap 4, in order to set it as predetermined temperature, the inside of the heater hole 2 becomes as high as 700 degreeC. For this reason, there existed the following faults. First, since the heater nichrome wire burns out in a single period, the life of the heater is short. Secondly, since the SUS material having high heat resistance is used for the heater cover on the outer peripheral surface of the heater, the heater cost increases. Thirdly, since the temperature around the heater is high, the wall surface of the heater hole and the heater cover are oxidized at high temperatures, rust is generated, the heater is fixed, and the heater is difficult to pull out for maintenance. there were.
The present invention is intended to eliminate these drawbacks and to exhibit the intended effect in Japanese Patent Application No. 2002-19826.

The floorboard body is formed with a fixed rail support part, a rolling rail support part, and a rolling rail support part in the order from one side to the other side of the upper surface, and the required thickness for forming the sleeper fixing attachment parts at both ends thereof It is composed of steel plates of the required length and width, and the ball holders are separated from the rolling rail support portion of the floor plate body in the horizontal direction transverse to the moving direction of the rolling rail, and are suitable at the required intervals. A heater hole is installed in the center of the longitudinal direction of the floor plate body, which is the middle of the floor plate, and the opening is arranged on the end surface of one end portion. It is formed by inserting a cutting blade from the opening in a direction parallel to the upper surface of the floor plate body to the required position toward the rolling rail support part of the main body and cutting , and a heater body with a built-in heater wire is formed in this heater hole Accommodates the outer circumference of the heater body And put the heat transfer liquid into constructed gap between the inner wall surface of the heater holes, sealing fittings attached to the inlet of the heater holes, in floor heater device switch with made to seal the heat transfer liquid.

The floorboard body is formed with a fixed rail support portion, a rolling rail support portion, and a rolling rail support portion in order from one side to the other side of the top surface, and a required thickness for forming sleeper fixing attachment portions at both ends thereof. It is composed of steel plates of the required length and width, and ball holders are placed on the rolling rail support portion of the floor plate body at appropriate locations at the required intervals on the left and right, which are transverse to the direction of movement of the rolling rail. Are fitted and placed in mounting holes that are opened as close as possible so as to enter each other, and the openings are on the left and right side edges of the floorboard body on the outside, and the opening is on the end face of one end. The left heater hole and the right heater hole to be deployed are formed by cutting with a cutting blade from the opening in a direction parallel to the upper surface of the floor plate body to the required position toward the rolling rail support portion of the floor plate body. The left heater hole slot and right A heater body containing a heater wire is accommodated in the heater hole long hole, a heat transfer liquid is put into a gap formed by the outer peripheral surface of the heater body and the inner wall surface of the heater hole, and a sealing metal fitting is provided at the inlet of the heater hole It is good also as a heater device for a floor board of a switch formed by mounting a heat transfer liquid.

In the oil system of the heater device of the present invention, it is possible to widen the gap while improving the heat transfer efficiency as compared with the air system. Therefore, the following improvements can be achieved as compared with the air system.
First, the cost is halved by using SS as the heater material due to the temperature drop in the heater hole.
Secondly, the heater hole is not required to be precise and can be manufactured easily.
Third, the heater life can be greatly extended, and maintenance is facilitated.
Fourth, since the heat transfer efficiency to the floor board body is improved, the power consumption can be reduced.

The floorboard body is formed with a fixed rail support part, a rolling rail support part, and a rolling rail support part in the order from one side to the other side of the upper surface, and the required thickness for forming the sleeper fixing attachment parts at both ends thereof It is composed of steel plates of the required length and width, and the ball holders are separated from the rolling rail support portion of the floor plate body in the horizontal direction transverse to the moving direction of the rolling rail, and are suitable at the required intervals. Heater holes that are arranged by fitting into mounting holes that open in several places in the back row, and are arranged by cutting the opening to the end face of one end at the center in the longitudinal direction of the floor plate body that is the middle of them Is formed by inserting a cutting blade from the opening in a direction parallel to the upper surface of the floor plate body to the required position toward the rolling rail support portion of the floor plate body and cutting , and a heater wire is built in this heater hole A heater body is accommodated, and the heater The heater device for the floor plate of the switchboard, in which the heat transfer liquid is put into a gap formed by the outer peripheral surface of the heater and the inner wall surface of the heater hole, the sealing metal fitting is attached to the inlet of the heater hole, and the heat transfer liquid is sealed. .

Hereinafter, the heater device for a floor board of the rolling machine according to the present invention will be described with reference to the heater device 1 of the rolling machine of the first embodiment shown in FIGS. 1 to 5. The rod-shaped heater body 4 is opened to the required depth in the horizontal direction, and generates heat when energized. The heat transfer liquid is inserted into the gap 5 formed by the outer peripheral surface 4a of the heater body 4 and the inner wall surface 3a of the heater hole 3. In this embodiment, the oil 6 is put, the sealing fitting 7 is screwed into the inlet of the heater hole 3, and the oil 6 is sealed.
As the sealing means, as shown in FIG. 4, the sealing fitting 7 may be configured separately with an oil sealing port 7a.

As shown in the drawing, the heater hole 3 is formed by inserting a cutting blade from an opening in a direction parallel to the upper surface of the floor plate body and cutting .

  Since the embodiment of the present invention is as described above, power is supplied to the heater body 4 from the power supply lines 8a and 8b to generate heat. Since the heater body 4 is arranged in the longitudinal direction, the floor board main body 2 is efficiently heated via the oil 6 and the snow that accumulates on the upper surface of the floor board main body 2 is efficiently melted.

Next, the floor board heater device 10 of the switchboard of the second embodiment of FIG. 6 will be described. The floor board body 11 is made of a steel plate having a required thickness and a required length in the vertical and horizontal directions, and its upper surface is from one side to the other side. In this order, a fixed rail support portion 12, a rolling rail support portion 13, and a rolling rail support portion 14 are formed, and sleeper adhering attachment portions 15a and 15b are formed at both ends 11a and 11b of the floor board main body 11, respectively. . Then, the ball receiver 16 is separated from the rolling rail holding support portion 14 in the lateral direction transverse to the moving direction of the rolling rail, and the mounting holes 17 are opened to the appropriate number of places at the required intervals. The heater hole 18 provided with an opening at the end surface of the one end portion 11b is parallel to the upper surface of the floorboard body at the center portion in the longitudinal direction of the floorboard body 11 which is the middle of them. A cutting blade is inserted from the opening in the direction and cut to form the middle part of the rolling rail support portion 13 of the floor board body 11. For example, a heater wire (not shown) is shielded inward in the heater hole 18. The heater body 19 is inserted, and oil 21 which is an embodiment of the heat transfer liquid is put into a gap 20 formed by the outer peripheral surface of the heater body 19 and the inner wall surface of the heater hole 18. Mounting the sealing fitting 22 into the mouth. The sealing fitting 22 and the heater body 19 may be integrally provided in advance.

  Since the heater device 10 for a floor board of a rolling mill according to the second embodiment of the present invention is as described above, when the heater body 19 is supplied with heat from the power supply line 23 to generate heat, the heater body 19 is elongated in the moving direction of the rolling rail. Therefore, the heat generation energy is conducted to the floor board main body 11 covering the wall thickness, and from the central portion to the ball receiver 16 of the rolling rail support portion 13 and the rolling rail support portion 14 from the central portion to the peripheral portion. Therefore, those portions are efficiently heated, and the snow that accumulates on the upper surface of the floorboard body 11 is efficiently melted.

Next, the floor board heater device 24 of the rolling mill of the third embodiment shown in FIGS. 8 and 9 will be described. The floor board body 25 has the same structure as the floor board body 11 of the second embodiment, and has a required thickness and length and width. Although it consists of a steel plate of length, the fixed rail support part 26, the rolling rail support part 27, and the rolling rail support part 28 are similarly formed in the order from the one side to the other side, and the upper surface of the floor board main body 25 is formed. At both ends 25a and 25b, sleeper fixing attachment portions 29a and 29b are formed. Then, the ball holder 30 can be inserted into the rolling rail support portion 28 so that it can be inserted into the left and right sides, which are transverse to the direction of movement of the rolling rail, at a required interval in a reverse row and into each other. The left heater hole is fitted and arranged in the mounting hole 31 that is opened as close as possible, and the openings are provided on the left and right side edges 25c and 25d of the floor board body 25 that are outside of them. The left heater hole 32a and the right heater hole 32b are formed by cutting with a cutting blade from the opening in a direction parallel to the upper surface of the floor board body up to the middle of the rolling rail support section 27 of the floor board body 25. For example, a heater body 33 in which a heater wire (not shown) is shielded and accommodated inward is inserted into the heater hole 32b and the right side heater hole 32b. Oils 35 and 35, which are examples of heat transfer liquid, are placed in gaps 34 and 34 formed by the inner wall surfaces of the holes 32a and 32b, and sealing fittings 36 and 36 are inserted into the left and right heater holes 32a and 32, respectively. Wear each one. The sealing fitting 36 and the heater body 33 may be integrally provided in advance.

  Since the third embodiment of the present invention is as described above, when power is supplied from the power supply lines 37, 37 to the heater bodies 33, 33 to generate heat, the heater bodies 33 provided in the left heater hole 32a and the right heater hole 32b, 33 is disposed in the longitudinal direction in the moving direction of the rolling rail and outside the ball receiver 30, and the heat generation energy is conducted to the floor plate body 25, and the rolling rail support 27 and the rolling rail support are also provided. Since conduction is performed from both sides to the ball receiver 30 of the portion 28, those portions are efficiently heated to melt the snow accumulation in these portions. Therefore, compared to the second embodiment, the heater wires are arranged closer to the both side edges, the temperature of the both side edges becomes higher and the power consumption increases, but the snow melting capacity at the both side edges increases accordingly. And can be melted quickly. Therefore, the power consumption of the heater body 32 is as low as possible even when the left and right heater wires are combined, reducing the overall power consumption of the switch and ensuring a snow melting effect. It is possible to ensure safety.

  In the oil system of the heater device of the present invention, the disadvantages of the air system are improved, and the ball receiving floor board rolling machine equipped with the floor board heater device is effective.

It is a top view which shows the heater apparatus for floor boards of the switchboard of 1st Example of this invention. Similarly, it is a side view. Similarly, it is one end elevation to which a feed line is connected. Similarly, it is the expanded sectional view of the principal part. Similarly, it is a partial expanded sectional view of a floor board main part. It is a top view which shows the heater apparatus for floor boards of the switchboard of 2nd Example of this invention. It is an expanded sectional view which follows the AA line of FIG. It is a top view which shows the heater apparatus for floor boards of the switchboard of 3rd Example of this invention. It is an expanded sectional view which follows the BB line of FIG.

DESCRIPTION OF SYMBOLS 1 Heater device for floor boards of the rolling machine of 1st Example 2 Floor board main body 3 Heater hole 3a Inner wall surface 4 Heater body 5 Air gap 6 Oil 7 Sealing metal fitting 7a Oil sealing port 8a Feeding line 8b Feeding line 10 Switching machine of 2nd Example Floor plate heater device 11 floor plate body 11a end portion 11b end portion 12 fixed rail support portion 13 rolling rail support portion 14 rolling rail support portion 15a sleeper fixing mounting portion 15b sleeper fixing mounting portion 16 ball receiver 17 mounting hole DESCRIPTION OF SYMBOLS 18 Heater hole 19 Heater body 20 Space | gap 21 Oil 22 Sealing metal fitting 23 Power supply line 24 Floor board heater device of the rolling machine of 3rd Example 25 Floor board main body 25a End part 25b End part 25c Left side edge 25d Right side edge 26 Fixed rail support part 27 Rolling rail support part 28 Rolling rail support part 29a Sleeper fixing attachment part 29 b Mounting part for fixing sleepers 30 Ball holder 31 Mounting hole 32a Left side heater hole 32b Right side heater hole 33 Heater body 34 Air gap 35 Oil 36 Sealing fitting 37 Feed line

Claims (2)

The floorboard body is formed with a fixed rail support portion, a rolling rail support portion, and a rolling rail support portion in order from one side to the other side of the top surface, and a required thickness for forming sleeper fixing attachment portions at both ends thereof. It is composed of steel plates of the required length and width, and the ball holders are separated from the rolling rail support portion of the floor plate body in the horizontal direction transverse to the moving direction of the rolling rail, and are suitable at the required intervals. A heater hole is installed in the center of the longitudinal direction of the floor plate body, which is the middle of the floor plate, and the opening is arranged on the end surface of one end portion. It is formed by inserting a cutting blade from the opening in a direction parallel to the upper surface of the floor plate body to the required position toward the rolling rail support part of the main body and cutting , and a heater body with a built-in heater wire is formed in this heater hole Accommodates the outer circumference of the heater body And put the heat transfer liquid into constructed gap between the inner wall surface of the heater holes, sealing fittings attached to the inlet of the heater hole, floor heater device switch with made to seal the heat transfer liquid. The floorboard body is formed with a fixed rail support portion, a rolling rail support portion, and a rolling rail support portion in order from one side to the other side of the top surface, and a required thickness for forming sleeper fixing attachment portions at both ends thereof. It is composed of steel plates of the required length and width, and ball holders are placed on the rolling rail support portion of the floor plate body at appropriate locations at the required intervals on the left and right, which are transverse to the direction of movement of the rolling rail. Are fitted and arranged in mounting holes that are opened as close as possible so as to enter into each other, and the openings are on the left and right side edges of the floorboard body on the outside, and the opening is on the end surface of one end. The left heater hole and the right heater hole to be deployed are formed by cutting with a cutting blade from the opening in a direction parallel to the upper surface of the floor plate body to the required position toward the rolling rail support portion of the floor plate body. The left heater hole slot and right A heater body containing a heater wire is accommodated in the heater hole long hole, a heat transfer liquid is put into a gap formed by the outer peripheral surface of the heater body and the inner wall surface of the heater hole, and a sealing fitting is provided at the inlet of the heater hole A heater device for the floor plate of a switch, which is equipped with a heat transfer liquid.

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