CN209776441U - Automatic foreign matter removing device of railway vehicle axle temperature monitoring equipment - Google Patents

Abstract

the utility model belongs to automatically, remove foreign matter device field especially relates to an automatic foreign matter device that removes of rail vehicle axle temperature monitoring facilities, be equipped with first duct fan on the connecting plate, be equipped with the wind hole on the connecting plate, the air intake of first duct fan is aimed at the wind hole, the air outlet of first duct fan is relative with the smooth through-hole, the below in wind hole is covered with the orifice plate, it has each hole to distribute on the orifice plate, the orifice plate links firmly with the connecting plate, space between orifice plate and the connecting plate constitutes inlet air channel. The utility model provides a set up the duct fan in vehicle axle temperature monitoring facilities's housing, carry out incessant the blowing to the light through-hole through the duct fan, effectively prevent that the thing that wafts from getting into through the light through-hole entering equipment in, keep the unobstructed railway vehicle axle temperature monitoring facilities of light path of equipment from removing foreign matter device automatically.

Description

Automatic foreign matter removing device of railway vehicle axle temperature monitoring equipment

Technical Field

The utility model belongs to remove the foreign matter device field automatically, especially, relate to an automatic foreign matter device that removes of rail vehicle axle temperature monitoring facilities.

Background

the prior art and the defects are as follows:

In order to ensure the safe operation of the train, the railway vehicle axle temperature monitoring equipment is arranged along the railway, and the equipment acquires axle temperature data passing through the train through an infrared axle temperature detector.

The railway vehicle axle temperature monitoring equipment is fixedly arranged near a railway steel rail and comprises an infrared axle temperature detector, a housing and a base, wherein the housing is connected with the base in a sealing way, and the infrared axle temperature detector is fixed on the base and is arranged in the housing. The front end of the housing extends to the front of the base, the top surface of the housing is provided with an optical through hole, and the optical through hole corresponds to the obliquely arranged infrared shaft temperature detector. The infrared detection light emitted by the infrared shaft temperature detector is emitted from the light through hole along the inclined light path.

When the train passes through, the infrared detection light emitted by the infrared axle temperature detector emitted from the light through hole directly irradiates the axle of the vehicle so as to monitor the temperature change of the axle and provide related information for ensuring the normal operation of the vehicle.

However, the train passing at high speed often carries light impurities such as leaves, paper scraps and the like, and the drifted substances may cover the optical through hole of the vehicle axle temperature monitoring device or enter the device through the optical through hole, so that the optical path is blocked after the drifted substances accumulate for a long time, and the infrared sensor probe on the infrared axle temperature detector may be covered, thereby affecting the normal operation of the railway vehicle axle temperature monitoring device and affecting the driving safety.

The difficulty and significance for solving the technical problems are as follows:

Therefore, based on the problems, the automatic foreign matter removing device for the railway vehicle shaft temperature monitoring equipment is provided, wherein the bypass fan is arranged in the housing of the vehicle shaft temperature monitoring equipment, the light through hole is continuously blown by the bypass fan, falling matters are effectively prevented from entering the equipment through the light through hole, and the smooth light path of the equipment is kept.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that exists among the known art and provide a set up the duct fan in vehicle axle temperature monitoring facilities's housing, carry out incessant the blowing through the light through-hole through the duct fan, effectively prevent that the thing that wafts from getting into through the light through-hole entering equipment in, keep the unobstructed railway vehicle axle temperature monitoring facilities of light passageway of equipment to remove foreign object device automatically.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be:

the utility model provides an automatic foreign matter device that removes of rail vehicle axle temperature monitoring facilities, automatic foreign matter device that removes of rail vehicle axle temperature monitoring facilities includes housing, infrared axle temperature detector and connecting plate, install infrared probe on the infrared axle temperature detector, the top of housing is equipped with the smooth through-hole, the produced light route of infrared probe passes the smooth through-hole, be equipped with first duct fan on the connecting plate, be equipped with the wind hole on the connecting plate, the air intake of first duct fan is aimed at the wind hole, the air outlet of first duct fan is relative with the smooth through-hole, the below of wind hole is covered with the orifice plate, it has each hole to distribute on the orifice plate, the orifice plate links firmly with the connecting plate, the space between orifice plate and the connecting plate constitutes inlet air channel.

The problem of the thing that drifts away that the current railway vehicle axle temperature monitoring facilities had that the train went to bring covers the smooth through-hole is solved, sets up the duct fan in vehicle axle temperature monitoring facilities's housing, carries out incessant the blowing to the smooth through-hole through the duct fan, prevents effectively that the thing that drifts away from to get into through smooth through-hole entering equipment in, the light passageway that keeps equipment is unobstructed.

the ducted fan uninterruptedly blows the light through hole, and the falling objects close to the light through hole are blown down and moved to other places, so that the falling objects can be effectively prevented from entering the equipment through the light through hole, and the smooth light path of the equipment is kept.

The utility model discloses can also adopt following technical scheme:

In foretell railway vehicle axle temperature monitoring facilities removes foreign matter device from beginning, further, light through-hole department is equipped with the fan housing of flaring horn mouth form under the narrow, the fan housing links firmly and is located with the housing the inboard of housing, the narrow mouth of fan housing is relative with light through-hole.

the fan cover enlarges the air outlet angle of the air outlet by utilizing the principle of the air spray pipe, can blow away the drifted objects as far as possible, and avoids accumulating near the optical through hole.

In the automatic foreign matter removing device of the railway vehicle axle temperature monitoring equipment, further, an outer cover is arranged on the periphery of the fan cover, the lower edge of the outer cover is connected with the fan cover, a space between the outer cover and the fan cover is marked as an air outlet channel, an annular air outlet is formed between the upper edge of the outer cover and the fan cover, an arc flanging extending outwards is arranged on the upper edge of the fan cover, an annular narrow gap is formed between the lower opening edge of the arc flanging and the upper edge of the optical through hole, an air inlet is formed in the bottom of the outer cover and is communicated with the air outlet of a second ducted fan through an air pipe, the second ducted fan is installed on a connecting plate, a through hole is formed in the connecting plate, and the air inlet of the second ducted fan is communicated with the air inlet channel through the through hole.

The narrow annular gap is the extension section of annular air outlet, and the purpose makes the wind that blows out be on a parallel with the top surface of housing, makes the air-out angle increase to 180 degrees, supplies wind through another ducted fan, can effectively blow away the drift that falls on near smooth through-hole housing, has thoroughly stopped the piling up of drift. The air inlet pipe is used for drawing and compensating air at a designated height or position, so that the maintenance times of the equipment can be reduced.

in foretell railway vehicle axle temperature monitoring facilities removes foreign matter device from moving, it is further, the capping has been detained on the orifice plate, the capping is connected for dismantling with the orifice plate, the sealed crimping of notch of capping is on the orifice plate, each hole all by the capping covers, the air-supply line is installed to one side of capping, the air-supply line with the inslot space intercommunication that forms between capping and the orifice plate.

In the automatic foreign matter removing device for the railway vehicle axle temperature monitoring equipment, further, an air filtering section bar is filled between the groove cover and the pore plate.

In the automatic foreign matter removing device for the railway vehicle axle temperature monitoring equipment, further, the air inlet pipe comprises a horizontal pipe and a vertical pipe, a hose section is arranged on the horizontal pipe, the lower port of the vertical pipe is communicated with the horizontal pipe positioned behind the hose section, and an air cap is arranged at the upper port of the vertical pipe.

In the automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle, further, the number of the stand pipes is at least two.

in the automatic foreign matter removing device for the railway vehicle axle temperature monitoring equipment, further, the automatic foreign matter removing device for the railway vehicle axle temperature monitoring equipment is installed on the base.

To sum up, the utility model has the advantages of it is following and positive effect:

1. The utility model discloses a duct fan carries out incessant the blowing to the light through-hole, and the thing that wafts that will be close the light through-hole blows off and moves to other department, can prevent effectively that the thing that wafts from getting into through the light through-hole entering equipment in, the light path that keeps equipment is unobstructed. The fan cover enlarges the air outlet angle of the air outlet by utilizing the principle of the air spray pipe, can blow away the drifted objects as far as possible, and avoids accumulating near the optical through hole. The annular air outlet increases the air outlet angle to 180 degrees, and the air is supplied by the other ducted fan, so that the falling objects falling on the housing near the optical through hole can be effectively blown away, and the accumulation of the falling objects is thoroughly avoided. The air inlet pipe is used for drawing and compensating air at a designated height or position, so that the maintenance times of the equipment can be reduced.

Drawings

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of a prior art configuration;

Fig. 2 is a basic structure diagram of the present invention;

FIG. 3 is a schematic structural diagram according to the first embodiment;

FIG. 4 is a schematic structural view of the second embodiment;

FIG. 5 is a schematic structural view of the third embodiment;

FIG. 6 is a schematic structural view of the fourth embodiment;

FIG. 7 is a schematic structural view of the fifth embodiment;

FIG. 8 is a schematic structural view of the sixth embodiment;

FIG. 9 is a schematic view of a connection structure of a connection plate and a first ducted fan;

FIG. 10 is a top plan view of FIG. 9 of the specification;

Fig. 11 is a bottom view of fig. 9 of the specification.

In the figure:

1. the device comprises a housing, 2, an optical channel, 3, an optical through hole, 4, an infrared probe, 5, an infrared shaft temperature detector, 6, a base, 7, a pore plate, 8, an air hole, 9, a first ducted fan, 10, holes, 11, an air inlet channel, 12, a connecting plate, 13, a fan cover, 14, an arc flanging, 15, an annular narrow gap, 16, an annular air outlet, 17, an air outlet channel, 18, an air inlet, 19, an air pipe, 20, a second ducted fan, 21, an air cap, 22, an air inlet pipe, 23, a notch, 24, an air filtering section bar, 25, a groove cover, 26, a vertical pipe, 27, a horizontal pipe, 28, a hose section, 29, an outer cover, 30 and a through hole.

Detailed Description

first, it should be noted that the specific structure, features, advantages, etc. of the automatic foreign object removing device for railway vehicle axle temperature monitoring equipment of the present invention will be specifically described below by way of example, however, all the descriptions are for illustrative purposes only and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. In contrast, when an element is said to be "directly connected" to another element, it is intended that no intervening element is present.

Fig. 1 shows a schematic structural diagram of the prior art, and shows a basic schematic structural diagram of the present invention by fig. 2, and shows a schematic structural diagram of a first embodiment by fig. 3, and shows a schematic structural diagram of a second embodiment by fig. 4, and shows a schematic structural diagram of a third embodiment by fig. 5, and shows a schematic structural diagram of a fourth embodiment by fig. 6, and shows a schematic structural diagram of a fifth embodiment by fig. 7, and shows a schematic structural diagram of a sixth embodiment by fig. 8, and shows a structural schematic connection of a connecting plate and a first ducted fan by fig. 9, and shows a top view of the specification fig. 9 by fig. 10, and shows a bottom view of the specification fig. 9 by fig. 11, and the present invention is specifically described below with reference to fig. 1 to fig. 11.

For further understanding of the contents, features and functions of the present invention, the following embodiments will be exemplified in conjunction with the accompanying drawings as follows:

an automatic foreign matter removing device for a railway vehicle shaft temperature monitoring device comprises a housing 1, an infrared shaft temperature detector 5 and a connecting plate 12, the infrared shaft temperature detector 5 is provided with an infrared probe 4, the top of the housing 1 is provided with an optical through hole 3, the light path 2 generated by the infrared probe 4 passes through the light through hole 3, the connecting plate 12 is provided with a first ducted fan 9, the connecting plate 12 is provided with an air hole 8, an air inlet 18 of the first ducted fan 9 is aligned with the air hole 8, the air outlet of the first ducted fan 9 is opposite to the light through hole 3, a pore plate 7 is covered under the air hole 8, each hole 10 is distributed on the pore plate 7, the pore plate 7 is fixedly connected with the connecting plate 12, and the space between the pore plate 7 and the connecting plate 12 forms an air inlet channel 11.

the problem of the thing that drifts away that the current railway vehicle axle temperature monitoring facilities had that the train went to bring covers smooth through-hole 3 is solved, set up the duct fan in vehicle axle temperature monitoring facilities's housing 1, carry out incessant the blowing to smooth through-hole 3 through the duct fan, effectively prevent that the thing that drifts away from to get into through smooth through-hole 3 entering equipment in, the light passageway 2 that keeps equipment is unobstructed.

Through duct fan to carry out incessant the blowing to light through-hole 3, will be close to the thing that wafts of light through-hole 3 and blow off and move to other places, can prevent effectively that the thing that wafts from getting into through light through-hole 3 entering equipment in, the light path 2 that keeps equipment is unobstructed.

Further, can also be in the utility model discloses in consider, the fan housing 13 of narrow flaring horn mouth form down is equipped with in 3 departments of light through-hole, fan housing 13 links firmly and is located with housing 1 the inboard of housing 1, the slot of fan housing 13 is relative with light through-hole 3.

the fan housing 13 enlarges the air outlet angle of the air outlet by using the air nozzle principle, and can blow away the drifted objects as far as possible, thereby avoiding the accumulation near the optical through hole 3.

Still further, can also be in the utility model discloses in consider, fan housing 13 periphery is equipped with dustcoat 29, the lower limb of dustcoat 29 with fan housing 13 links to each other, dustcoat 29 with space between fan housing 13 is marked as air-out channel 17, the upper edge of dustcoat 29 with form annular air outlet 16 between the fan housing 13, the last edge of fan housing 13 is equipped with the circular arc turn-ups 14 of outside extension, the lower mouthful of edge of circular arc turn-ups 14 forms annular narrow clearance 15 with the last edge of light through-hole 3 between, dustcoat 29 bottom is opened there is air intake 18, air intake 18 is opened through the air outlet intercommunication of tuber pipe 19 with second duct fan 20, second duct fan 20 installs on connecting plate 12, through-hole 30 on connecting plate 12, second duct fan 20's air intake 18 is opened has through-hole 30 and air inlet channel 11 intercommunication.

The narrow annular gap 15 is an extension section of the annular air outlet 16, and aims to enable blown air to be parallel to the top surface of the housing 1, so that the air outlet angle is increased to 180 degrees, and the air is supplied by the other ducted fan, so that falling objects falling on the housing 1 near the light through hole 3 can be effectively blown away, and the accumulation of the falling objects is thoroughly avoided. The air inlet pipe 22 is used for drawing and compensating air at a designated height or position, and the maintenance frequency of the equipment can be reduced.

Still further, the utility model discloses in can also be considered, the buckle has capping 25 on the orifice plate 7, capping 25 and orifice plate 7 are for dismantling the connection, the notch 23 sealing crimping of capping 25 is on orifice plate 7, each hole 10 all by capping 25 covers, air-supply line 22 is installed to one side of capping 25, air-supply line 22 with the inslot space intercommunication that forms between capping 25 and the orifice plate 7.

It is to be noted that the air filter profile 24 is filled between the slot cover 25 and the perforated plate 7.

It should be noted that the air inlet pipe 22 includes a horizontal pipe 27 and a vertical pipe 26, a hose section 28 is provided on the horizontal pipe 27, a lower port of the vertical pipe 26 is communicated with the horizontal pipe 27 located behind the hose section 28, and an upper port of the vertical pipe 26 is provided with a hood 21.

It should be noted that the number of the standpipes 26 is at least two.

it is noted that the automatic foreign matter removing apparatus for the axle temperature monitoring device of the railway vehicle is installed on the base 6.

By way of example, the automatic foreign matter removing device for the railway vehicle axle temperature monitoring equipment of the embodiment is arranged in the housing 1 of the vehicle axle temperature monitoring equipment, and comprises a ducted fan, a connecting plate 12, a fan cover 13, a pore plate 7, an air inlet pipe 22 and an air outlet pipe 19, wherein the ducted fan is arranged on the connecting plate 12, the pore plate 7 is arranged below the connecting plate 12 and fixedly connected with the base 6 of the axle temperature monitoring equipment, and the fan cover 13 is arranged on the housing 1 of the axle temperature monitoring equipment.

The first embodiment is as follows:

as shown in the attached figure 3 of the specification, the automatic foreign matter removing device of the railway vehicle shaft temperature monitoring equipment comprises a connecting plate 12 and a housing 1, wherein the top of the housing 1 is provided with an optical through hole 3, the connecting plate 12 is provided with an air hole 8, the air hole 8 is provided with a first ducted fan 9, the body of the first ducted fan 9 is fixedly connected with the connecting plate 12, an air inlet 18 of the first ducted fan 9 is opposite to the air hole 8, an air outlet is opposite to the optical through hole 3, a pore plate 7 is covered below the air hole 8, the edge of the pore plate 7 is fixedly connected with the connecting plate 12 to form an air inlet channel 11, the housing 1 is internally provided with a wind cover 13 which is in a shape of a narrow-top and a wide-bottom horn mouth, the wind cover 13 is; the edge of the connecting plate 12 is connected with the front end of a base 6 and the bottom of the front end of a housing 1 in the railway vehicle axle temperature monitoring equipment; an infrared shaft temperature detector 5 is arranged on the base 6.

The connecting plate 12 is provided with an air hole 8, mounting holes are formed in the periphery of the air hole 8 according to screw holes corresponding to the ducted fan, the ducted fan is fixed on the air hole 8 through a bolt assembly, the edge of an air inlet 18 of the ducted fan is attached and pressed with the edge of the air hole 8, and a rubber pad is added as necessary for sealing and shock absorption; the connecting plate 12 and the orifice plate 7 are made of white steel, the connecting plate and the orifice plate 7 are integrally formed by welding, holes in the orifice plate 7 are round holes or long holes formed by laser, the size of each hole in the embodiment is 50 x 70 mm, and the maximum passing diameter of each hole is less than or equal to 70 mm in general; the ducted fan is an industrial ducted fan used by an electric cabinet or a large-scale server, preferably a double-section ducted fan with two groups of fans arranged inside, the model of the ducted fan used in the embodiment is GFC0412DS, the airflow is 0.864m3/min, and the wind pressure measured at the optical through hole 3 is 429.9 Pa. The fan cover 13 can be made of plastic, the extension length of the flaring at the lower end of the fan cover 13 and the height of the upper end of the fan are limited by the optical path 2 which does not shield the infrared probe 4 in the infrared shaft temperature detector 5, the inclined surface from the flaring to the narrow opening in the fan cover 13 is formed by two cambered surface curvatures with different curvatures in a forward extending connection mode, the connection part of the two cambered surfaces is an outward concave surface, a certain vacuum can be formed by the concave surface, the adsorbed updraft applies pressure to the two sides, and the outward expansion angle of the updraft is increased.

example two:

As shown in fig. 4 of the specification, an outward-inclined arc flanging 14 is arranged at the upper end of the fan housing 13, an annular narrow gap 15 is arranged between the lower opening edge of the arc flanging 14 and the upper edge of the optical through hole 3, an annular air outlet channel 17 is arranged on the upper edge of the cover body of the fan housing 13, an annular air outlet 16 is arranged above the air outlet channel 17, the annular air outlet 16 is communicated with the annular narrow gap 15, an air inlet 18 of the air outlet channel 17 is communicated with an air outlet of a second ducted fan 20 through an air pipe 19, and an air inlet 18 of the second ducted fan 20 is communicated with the air inlet channel 11. For convenience of structural display, the second ducted fan 20 in the drawings of the specification is vertically arranged, the second ducted fan 20 may also be arranged beside the first ducted fan 9, the arrangement mode is the same as that of the first ducted fan 9, and the first ducted fan 20 and the second ducted fan 20 may use fans of the same type.

example three:

As shown in the attached figure 5 of the specification, a slot cover 25 is fastened on the orifice plate 7, the slot cover 25 is detachably connected with the orifice plate 7, a slot opening 23 of the slot cover 25 is in sealing pressure joint with the orifice plate 7, each hole 10 on the orifice plate 7 is arranged on the plate surface in the slot opening 23 of the slot cover 25, an air inlet pipe 22 is fixedly arranged on one side of the slot cover 25, an air outlet of the air inlet pipe 22 is communicated with the space in the slot of the slot cover 25, and an air inlet 18 of the air inlet pipe 22 is provided with an air cap 21.

the air inlet pipe 22 is provided with a horizontal pipe 27 and a vertical pipe 26, the front end of the horizontal pipe 27 is communicated with the space in the groove of the groove cover 25, the horizontal pipe 27 is provided with a hose section 28, the lower port of the vertical pipe 26 is communicated with the horizontal pipe 27 positioned behind the hose section 28, and the upper port of the vertical pipe 26 is an air inlet 18 of the air inlet pipe 22.

Example four:

as shown in fig. 6, an air filter profile 24 is filled between the slot cover 25 and the pore plate 7, wherein the air filter profile 24 is a shaped air filter material, such as a shaped sponge, a filter paper, a filter cloth, a metal mesh, and the like; the air filter profile 24 excludes loose particulate air filter material.

Example five:

As shown in fig. 7 of the specification, the slot cover 25 may be "C" shaped, with each aperture 10 being located on the side of the aperture plate 7.

The pore plate 7 is buckled with a groove cover 25, the groove cover 25 is detachably connected with the pore plate 7, a groove opening 23 of the groove cover 25 is in sealing and pressing connection with the pore plate 7, each hole 10 on the pore plate 7 is arranged on a connecting plate 12 in the groove opening 23 of the groove cover 25, an air filtering section bar 24 is filled between the groove cover 25 and the pore plate 7, an air inlet pipe 22 is fixedly arranged on one side of the groove cover 25, an air outlet of the air inlet pipe 22 is communicated with the space in the groove of the groove cover 25, and an air inlet 18 of the air inlet pipe 22 is provided with an air cap 21.

Example six:

As shown in fig. 8, the slot cover 25 is wrapped around the outside of the orifice plate 7.

The wind pipe 19 is connected to the slot cover 25, and introduces wind into the gap between the slot cover 25 and the pore plate 7 (i.e. into the space filled with the air filtering profile 24), and the wind is filtered and purified by the filtering profile, passes through the holes on the pore plate 7 and is sucked into the fan.

For example, two infrared sensors are usually installed in the railway vehicle axle temperature monitoring device, and two light through holes 3 are arranged on the housing 1, so that in the device, the number of the corresponding air holes 8, the first ducted fans 9 and the fan housings 13 is also two, which belong to the order of magnitude change of the same structure, wherein the two air holes 8 can share one air inlet channel 11, and the annular air outlet channels 17 in the two fan housings 13 can share one second ducted fan 20 or can be respectively provided with independent second ducted fans 20 for independent air supply; the number of the air inlet pipes 22 can be multiple, and the air inlet pipes are used for increasing the air inlet quantity and reducing the air inlet resistance.

to sum up, the utility model discloses can provide one kind and set up the duct fan in vehicle axle temperature monitoring facilities's housing, carry out incessant the blowing through the light through-hole through the duct fan, effectively prevent that the thing that wafts from getting into through the light through-hole entering equipment in, keep the unobstructed railway vehicle axle temperature monitoring facilities of light passageway of equipment to remove foreign matter device from moving.

The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (8)

1. The utility model provides an automatic foreign matter device that removes of rail vehicle axle temperature monitoring facilities, rail vehicle axle temperature monitoring facilities is automatic removes foreign matter device includes housing (1), infrared axle temperature detector (5) and connecting plate (12), install infrared probe (4) on infrared axle temperature detector (5), the top of housing is equipped with smooth hole (3), produced light path (2) of infrared probe (4) pass smooth hole (3), its characterized in that: the solar energy air conditioner is characterized in that a first ducted fan (9) is mounted on the connecting plate (12), an air hole (8) is formed in the connecting plate (12), an air inlet of the first ducted fan (9) is aligned to the air hole (8), an air outlet of the first ducted fan is opposite to the light through hole, a pore plate (7) is covered below the air hole, holes (10) are distributed in the pore plate, the pore plate (7) is fixedly connected with the connecting plate (12), and an air inlet channel (11) is formed in the space between the pore plate (7) and the connecting plate (12).

2. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 1, wherein: the wind shield is characterized in that a wind shield (13) with a narrow lower expanding horn-shaped upper portion is installed at the optical through hole (3), the wind shield is fixedly connected with the housing (1) and is located on the inner side of the housing (1), and the narrow opening of the wind shield (13) is opposite to the optical through hole (3).

3. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 2, wherein: an outer cover (29) is arranged on the periphery of the fan cover, the lower edge of the outer cover (29) is connected with the fan cover, the space between the outer cover (29) and the fan cover is marked as an air outlet channel (17), an annular air outlet (16) is formed between the upper edge of the outer cover (29) and the fan cover, the upper edge of the fan cover is provided with an arc flanging (14) extending outwards, an annular narrow gap (15) is formed between the lower opening edge of the arc flanging and the upper edge of the light through hole, the bottom of the outer cover (29) is provided with an air inlet (18), the air inlet (18) is communicated with an air outlet of the second ducted fan (20) through an air pipe (19), the second ducted fan (20) is arranged on a connecting plate (12), a through hole (30) is arranged on the connecting plate (12), and the air inlet of the second ducted fan is communicated with the air inlet channel (11) through the through hole (30).

4. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 1, wherein: detain capping (25) on orifice plate (7), capping (25) are for dismantling with orifice plate (7) and are connected, the notch (23) of capping seals the crimping on orifice plate (7), each hole (10) all by capping (25) cover, air-supply line (22) are installed to one side of capping (25), the air-supply line with the inslot space intercommunication that forms between capping (25) and orifice plate (7).

5. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 4, wherein: and an air filtering section bar (24) is filled between the groove cover (25) and the pore plate (7).

6. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 4, wherein: the air inlet pipe (22) comprises a transverse pipe (27) and a vertical pipe (26), a hose section (28) is arranged on the transverse pipe (27), the lower end opening of the vertical pipe (26) is communicated with the transverse pipe (27) located behind the hose section (28), and an air cap (21) is mounted at the upper end opening of the vertical pipe (26).

7. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 6, wherein: the number of the vertical pipes (26) is at least two.

8. The automatic foreign matter removing device for the axle temperature monitoring equipment of the railway vehicle as claimed in claim 1, wherein: the automatic foreign matter removing device of the railway vehicle axle temperature monitoring equipment is arranged on a base (6).