JP2584629Y2 - Hot air type electric snow melting machine for railway turnout - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air type electric snow melting machine for a railway turnout used at a point of a railway turnout.

[0002]

2. Description of the Related Art In the case of railway turnout points, such as in winter, snowfall or freezing, etc., it is impossible to change points in the same state as it is. Install an electric-heating-type hot-air-type electric snow melting machine from above, and blow hot air to the gap between the fixed rail and the movable rail around the main point, around the floorboard, and between the left and right rails (between rails), etc. The heat has been kept to prevent accidents.

As shown in FIGS. 4 and 5, in this electric heating type hot air type hot air type electric snow melting machine, a blower 53 is juxtaposed close to an electric heater 52 for heating an air flow to prevent overheating. A thermostat also serving as an electric circuit opening switch, an electric circuit component having an auxiliary function thereof, and the like are collectively arranged in a snow melting unit housing 51 of the snow melting unit main body 50, and a hot air blowing duct 54 is provided in the snow melting unit housing 51. And a power cable 55 incorporating an electric heater power line, a blower power line, an abnormal temperature detection control circuit line, and the like are connected, and the snow melting unit housing 51 of the snow melting unit body 50 is fixed. Outside the rail 56, the hot air blow-out duct 54 was installed so as to pass between the fixed rail 56 and the movable rail 57, which are essential points, and between the two sleepers 58 adjacent to each other.

Also, the electric heater and the blower are housed in a single case as a large-capacity unit capable of supplying the whole of one point, and are installed at a place away from the main part of the point, and two adjacent ones are installed. Other systems, in which only hot air outlet ducts or nozzles were provided in each of the sleepers and connected by a required number of branched air ducts between them, were also used in some cases.

[0005]

However, the conventional hot-air-type electric snow melting apparatus as described above can exert the effects of ordinary snow melting and freezing prevention, but the snow melting body has a track with a lot of dust. Because it was installed in contact with the roadbed, when the blower was in operation, the dust was sucked in, and the dust adhered to the blower bearings and was worn away, reducing the durability of the blower. Because it is installed very close to the part, the size of the snowmelter housing must be made within the range restricted by the building limits so that there is no risk of contact with the traveling vehicle. Due to the restriction, there was a problem that it was difficult to improve the blower by increasing the blower volume, increasing the blowing amount, and improving the snow melting effect performance.

Further, since all the components of the snow melting device are arranged in the snow melting device housing which is a small space, if the inside of the snow melting device is overheated due to a failure of the blower or the like, these storage devices become large. Since it was damaged, it was necessary to perform frequent maintenance and inspection, which was difficult.In addition, it was necessary to provide an abnormal temperature detection circuit to prevent such overheating. It is necessary to use a special dedicated cable that has multiple branch lines with a dedicated special wire coupler attached at the end to connect each body, which not only increases the cost, but also installs such a power cable in the key point It is necessary to protect the equipment by the number of hot-air-type electric snowmelters that need to be protected by a cable duct made of steel plate. Kuno manpower was needed.

Accordingly, the present inventor has paid attention to these problems, and has taken sufficient measures against dust in the air circulation system while maintaining the excellent performance and effect of the hot-air type electric snow melting machine, to thereby improve the durability of the blower. It is possible to improve the air flow rate without increasing the heating loss, and it is also excellent in durability, maintenance and inspection are easy, the whole equipment is simpler, and The present invention provides a hot-air-type electric snow-melting device for railway turnouts that can be replaced with the hot-air-type electric snow-melting device.

[0008]

Means for Solving the Problems In order to solve the above-mentioned problems, a hot air type electric snow melting machine for a railway turnout according to the present invention is provided in a housing .
A suitable length between the blower housed in the main body and the body of the snow melting machine with a heater installed at the base of the duct for sending out hot air .
Connected by a non- wind guide tube,
It is characterized in that it is heated by the above-mentioned heater, and a plurality of air guide tubes are extended from one blower, and the above-mentioned air guide tubes are separately connected to a plurality of snow melting units in principle. Is what you do.

[0009]

The air is forcibly blown from the blower to the main body of the snow melting device through the air guide tube, and the air is heated by the electric heater in the main body of the snow melting device, and at the same time, the hot air is blown out through the duct for sending out the hot air to the predetermined portion. Melts snow or keeps warm.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, the hot-air-type electric snow melting device of the present invention includes a blower housing 2b in which a blower 2a is housed, and a duct 1b for sending hot air from one side of a heater housing 1c in which an electric heater 1a is installed. Are connected to each other by a plurality of air guide tubes 3.

As shown in FIGS. 2 and 3, the main body 1 of the snow melting machine has a lid 1d which can open and close the upper surface of the heater housing 1c.
One side portion of the heater housing 1c is formed to extend slightly obliquely downward, and the distal end thereof is used as a duct mounting portion 1e, to which the duct 1b for sending out hot air is connected, and to the opposite side portion, a wind guide tube is connected. A portion 1f is provided and the air guide tube 3 is connected thereto, and the entire inside thereof is used as an air flow passage, and the electric heater 1a is installed inside the duct mounting portion 4b in the heater housing 1c. In addition, the air from the air guide pipe 3 is heated in the heater housing 1c and immediately blows out from the hot air sending duct 1b to the rail. This snowmelter body 1
It is inserted and installed between the sleepers 7 below the fixed rails 5 to the movable rails 6 at the points.

As the electric heater 1a, one having a structure in which air is passed between heating elements such as a nickel wire to heat it can be used, and for example, a strip heater with a radiating fin is suitable.

The hot air delivery duct 1b is provided at a plurality of appropriate locations on the upper surface or the distal end surface of the hollow rectangular tube.
g, 1h and 1i are provided, from which hot air blows out to a plurality of predetermined locations such as a gap between the fixed rail 5 and the movable rail 6 at a point essential portion, a floor plate periphery, and between left and right rails (between rails). Can be blown at the same time.

An air blower 2a for forcibly sending air into the air flow passage is installed in a blower housing 2b together with a sensor for detecting the presence or absence of air blow and other control electric circuits.
It will be installed at an appropriate location near the main part of the switch point.

The air blower 2a may be selected and installed with sufficient air blowing capacity so that the air volume is not reduced even if a cloth or a porous dust filter is attached to the air intake. it can. Also a large blower 2a
By selecting, the durability of each component, especially the bearings, etc. is increased, and the durability of the blower 2a is improved.

One end of the air guide tube 3 is collected by the blower housing 2b and is simultaneously blown by the blower 2a, and the other end is separately connected to the main body 1 of the snow melting device, and forced air is blown from the blower 2a. Although the air to be blown is guided to the snowmelter body 1, it is also possible to directly connect each of the air guide tubes 3 to the blower 2a according to the shape of the blower 2a.

The air guide tube 3 connecting the blower 2a and the snowmelter main body 1 is formed in a pipe shape having a minimum necessary length so as not to unnecessarily increase the air resistance loss. It is desirable for the work to have flexibility. Further, it is preferable to mold it into a flexible tube, since the operations such as attachment and detachment become easier.

The power supply of the hot-air type electric snow melting device 1 of the present invention includes a power supply cable 4 and a double control signal cable from a power supply panel or an operation control panel, and a separate blower housing 2b. And wired. The power supply of the blower 15, the plurality of snowmelter bodies 1 connected to the blower 15, the electric heater 1 a, and other constituent electric circuits is all connected to the power supply cable 4.

The electric power of the electric heater 1a housed in the snowmelter body 1 is supplied by an electric connection cable connecting between the blower housings 2b. Thus, it is configured not to be exposed to the outside. The electric cables 4 to the electric connection cables may be ordinary electric cables.

Since the hot-air-type electric snow melting device 1 of the present invention has the above-described configuration, the air forcedly blown by the blower 2a is separately stored in the heater housing 1c by the plurality of air guide tubes 3. It is guided and heated by the electric heater 1a in the heater housing 1c and blows out from the hot-air outlet of the hot-air sending duct 1b. And a plurality of predetermined locations such as between left and right rails (between rails) are simultaneously kept warm to exhibit a snow melting effect.

[0021]

[Effects of the Invention] The present invention is configured such that only the electric heater is left in the snowmelter body as described above, and the blower and other constituent circuits are housed in a separate housing. It has the following effects.

The size of the main body of the snow melting machine can be further increased. In addition, other electric circuits conventionally housed in the main body of the snow melting machine do not have to be heated by the electric heater, and there is no need to incorporate an abnormal temperature detection control circuit in the main body of the snow melting machine. Inspection is almost unnecessary, and an electric circuit for overheating monitoring is also unnecessary, and special cables and steel cable protection ducts that connect the circuit to the operation control panel are also unnecessary, and the entire equipment Can be simplified.

Further, since the blower is housed in a separate housing installed at a location distant from the main part of the point, the size of the blower is not limited, and the air for a plurality of blower main bodies can be supplied from one blower. This makes it possible to supply the air, thereby improving the durability of the blower itself, making it possible to sufficiently take measures against dust at the air intake, and extending the durability of the device. In addition, since ancillary components per point are simplified and greatly reduced as a whole, the cost of the apparatus can be reduced, and the labor for maintenance can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a top view showing an example of an attached state of a hot-air type electric snow melting device of the present invention.

FIG. 2 is a top view showing an example of the hot-air-type snow melting apparatus body of the present invention.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a view showing a mounting state of a conventional hot air type electric snow melting machine.

FIG. 5 is a side view showing an example of a conventional hot air type electric snow melting machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Snow-melting device main body 1a Electric heater 1b Duct for sending out hot air 1c Heater storage housing 2a Blower 2b Blower storage housing 3 Air guide tube 4 Power cable

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E01B 7/24 E01B 19/00

Claims (2)

(57) [Scope of request for utility model registration] An air blower housed in a housing and a snowmelter body having a heater installed at a base of a duct for sending out hot air are connected by an air guide pipe having an appropriate length and no branch , Above air duct
A hot air type electric snow melting device for a railway turnout , wherein the air after being guided by the heater is heated by the heater. 2. A plurality of snowmelter bodies each having a plurality of air guide tubes extending from a single blower housed in a single blower housing, and an electric heater installed at a base of a duct for sending out hot air. And a hot air type electric snow melter for a railway turnout, which are separately connected to each other.