CN114951188A - Device and method for cleaning viewport of train wheel set - Google Patents

Abstract

The invention discloses a device and a method for cleaning a viewport of a train wheel set, which comprises the following steps: the wiper structure is connected with the window panel through an elastic component, and the lens is arranged on the window panel; the windscreen wiper structure comprises a lifting plate, a driving device is arranged in the middle of one side of the lifting plate, which is far away from a window panel, sliding rails are arranged at the top and the bottom of the lifting plate, a gear is arranged at the output end of the driving device, the sliding rails are connected with sliding blocks in a sliding manner, and the sliding blocks are provided with racks meshed with the sliding blocks; one side of top slider, bottom slider one side opposite with top slider one side all are equipped with the windscreen wiper, all are equipped with near the light of opening in the initial position and the final position of windscreen wiper, the position that the window panel corresponds the lifter plate is equipped with the electro-magnet.

Description

Device and method for cleaning viewport of train wheel set

Technical Field

The invention relates to a device and a method for cleaning a viewport of a train wheel set, and belongs to the technical field of operation and maintenance detection equipment of railway lines.

Background

Along with the progress of science and technology, more and more unmanned intelligent security of high accuracy detects monitoring and equips and is installed and come into use on the railway main line, and abominable outdoor operating mode environment has great influence to the reliability that high accuracy security detected monitoring and equips optical imaging, and this type of equipment need adopt window clearance mechanical mechanism to clear up dust and the rainwater on window glass surface to ensure that core precision optical device can normally work. The prior art is as follows: at present, the main cleaning mode is that manual cleaning is mainly adopted, and a periodical skylight point wiping mode is adopted.

Firstly, (1) the existing window glass cleaning mode is mostly a manual wiping mode, and the existing window glass cleaning mode has no wiper. When raining, because muddy water that the train brought directly hits on the viewport, the viewport is burned, and the dirt can't be cleared up automatically to equipment, leads to the unable normal light-emitting of viewport, influences its use, just needs the manual maintenance of cleaning.

(2) Most of the most widely applied windscreen wipers are automatic windscreen wipers of automobiles, the mode is reciprocating motion, when the windscreen wipers move back and forth, dust particles on the surfaces of the glass easily generate hard friction with the glass, the glass is very easy to scratch, and because the perception of human eyes on trace impurities is not too high, the normal driving of a driver is not influenced,

such a mechanism would not be suitable if the viewport of the railroad equipment was cleaned. Because when the train travels, the greasy dirt that brings attaches on the viewport, when opening the windscreen wiper, do reciprocating motion, rub on glass repeatedly, lead to optical glass reflection of light easily under the sunlight shines, these equipment adopt high accuracy camera mostly, and it is very high to the formation of image requirement, can not have a interference of silk, so need more ingenious mechanical structure, clear up the viewport.

(3) Traditional windscreen wiper of meaning, the design is mostly the unilateral vertical design, and this kind of mode drawback lies in, when the windscreen wiper need be about doing the clearance viewport, does not have the power of driving about downwards to and automatic rising function, do one-way clearance and be the support, the greasy dirt can only be along with the windscreen wiper, this kind of scheme need rub on the viewport repeatedly, also scratch very easily or scrape the colored viewport for a long time consuming, lead to equipment formation of image not clear enough.

Secondly, in the existing equipment, a viewport is not provided with a glass cleaning device, and glass is exposed in an outdoor environment for a long time, so that a large amount of dust is generated on the viewport and oil stains caused by goods loaded on a train cannot be cleaned in time, so that a camera has poor imaging quality and blurred images, only skylight points can be relied on, manual wiping maintenance is performed, the maintenance period is long, and wiping is not clean; if the skylight points for construction cannot be arranged in time, the equipment cannot normally image due to the continuous accumulation of dust in the view port.

In the traditional equipment, the viewport does not have auxiliary heating system, when producing certain difference in temperature inside and outside window glass, because the vapor in the air condenses, will produce the fog film on the glass surface, makes the glass surface become fuzzy, and then causes the optical imaging system of equipment, light path abnormal problems such as output fuzzy formation of image.

Disclosure of Invention

The invention aims to provide a device and a method for cleaning a viewport of a train wheel set, which aim to solve the problem that dust particles on the surface of glass are easy to generate hard friction with the glass when a windscreen wiper in the prior art moves back and forth, so that the glass is easy to scratch.

A train wheelset viewport cleaning device, comprising: the windscreen wiper structure is connected with the window panel through an elastic assembly, and the lens is arranged on the window panel and provided with a dust rain photoelectric sensor;

the windscreen wiper structure comprises a lifting plate, a driving device is arranged in the middle of one side of the lifting plate, which is far away from a window panel, sliding rails are arranged at the top and the bottom of the lifting plate, a gear is arranged at the output end of the driving device, the sliding rails are connected with sliding blocks in a sliding manner, and the sliding blocks are provided with racks meshed with the sliding blocks; one side of top slider, bottom slider one side opposite with top slider one side all are equipped with the windscreen wiper, all are equipped with near the light of opening in the initial position and the final position of windscreen wiper, the position that the window panel corresponds the lifter plate is equipped with the electro-magnet.

Further, elastic component includes guiding axle and spring, the spring housing is established on the guiding axle, guiding axle one end and lifter plate sliding connection, the other end and window panel fixed connection.

Further, the wiper is provided with a slope from top to bottom.

Further, the inclination is 170-175 °.

Furthermore, a water spraying structure is arranged on two sides of the lens and comprises a water spraying valve block, a water inlet is formed in one side of the water spraying valve block, and a nozzle is arranged on the other side of the water spraying valve block.

Further, the lens is provided with a heating wire.

A method for cleaning a viewport of a train wheel set, the method comprising the steps of:

when the dust rain photoelectric sensor senses that rain exists on the lens, the electromagnet is electrified, the lifting plate is attached to the window panel, and meanwhile, the driving device is started to rotate forwards to drive the windscreen wiper to act on the lens;

when the proximity switch senses that the windscreen wiper moves to the end position, the electromagnet loses power, the lifting plate and the window panel are separated from the window panel by the elastic force of the spring, the driving device rotates reversely to enable the windscreen wiper to return to the initial position, when the proximity switch senses that the windscreen wiper returns to the initial position, the electromagnet is powered on, and the driving device rotates positively to drive the windscreen wiper to continue working.

Further, the method further comprises:

the dust rain photoelectric sensor collects the image definition of the lens, sends the image definition to the data processing module, judges whether the lens definition exceeds a preset value, and starts the heater to heat and demist the lens if the lens definition exceeds the preset value;

if the image definition does not exceed the preset value, the image definition is input into a data analysis communication module, whether dust exists in the lens is judged, if so, a nozzle is started to spray high-pressure glass water, and a wiper is started to clean the lens.

Compared with the prior art, the invention has the following beneficial effects:

(1) the double-rack structure is adopted, the stability and the reliability are realized, one driving device drives two windscreen wipers, and the installation space is saved;

(2) the active cleaning function is adopted, the phenomenon of oil stain removal and light reflection is avoided, the wiper is sensed and controlled in a closed loop manner, the view port can be ensured to be in a cleaning state at any time,

(3) the cleaning speed is high; the windscreen wiper is provided with a micro-strip oblique angle, force is driven from top to bottom, and an automatic lifting system of the windscreen wiper assembly belt can realize a one-way cleaning function and better protect the view port.

Drawings

FIG. 1 is a schematic view of the structure of the apparatus of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a schematic view of the water spray configuration of the present invention;

FIG. 4 is a schematic view of a lens structure according to the present invention;

FIG. 5 is a schematic view of a wiper according to the present invention;

FIG. 6 is a schematic of the process of the present invention;

in the figure: 1. a wiper; 2. a rack; 3. a gear; 4. a wiper; 5. a dust rain photosensor; 6. a slide rail; 7. a slide rail; 8. a near on light; 9. a spring assembly; 10. a motor; 11. an electromagnet; 12. a lens; 13. a heater; 14. a water spray valve block; 15. a water inlet; 17. A nozzle; 18. a lifting plate; 19. a window panel; 20. and (4) guiding the shaft.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1, a train wheelset viewport cleaning device is disclosed, which comprises: a wiper structure connected with the window panel 19 through an elastic component and a lens 12 arranged on the window panel 19;

as shown in fig. 1, the wiper structure includes a lifting plate 18, a driving device is arranged in the middle of one side of the lifting plate 18 away from a window panel 19, sliding rails 6 are arranged at the top and the bottom, a gear 3 is arranged at the output end of the driving device, a sliding block 7 is connected to the sliding rails 6 in a sliding manner, and a rack 2 meshed with the sliding block is arranged on the sliding block 7; note here that both sliders are provided with racks, which are engaged with the lower end at the upper end of the gear 3;

one side of the top slider 7 and one side of the bottom slider 7 opposite to the top slider 7 are both provided with a wiper 1, and it should be noted that, as shown in fig. 1, one wiper 1 is provided on the left side (with reference to fig. 1) of the slider 7 disposed at the bottom of the lifting plate 18, another wiper 1 is provided on the right side (with reference to fig. 1) of the slider 7 disposed at the top of the lifting plate 18, and the two wipers 1 respectively correspond to the two lenses 12 on the window panel 19;

the starting position and the ending position of the wiper 1 are both provided with an approach switch 8 and two approach switches 8, wherein one approach switch is used for detecting whether the wiper works in place, and the other approach switch is used for detecting whether the wiper returns to the starting position; the position of the window panel 19, which corresponds to the lifting plate 18, is provided with the electromagnet 11, when the electromagnet 11 is electrified, the lifting plate 18 is attached to the window panel 19, so that a wiper can be attached to the lens 12, and the lens is cleaned;

in this embodiment, elastic component includes guiding axle 20 and spring 9, spring 9 cover is established on the guiding axle, guiding axle one end and lifter plate 18 sliding connection, the other end and window panel 19 fixed connection, and when electro-magnet 11 circular telegram, lifter plate 18 is adsorbed by electro-magnet 11, and lifter plate 18 extrusion spring 9 removes along the guiding axle, and when electro-magnet 11 outage, lifter plate 18 receives the elasticity and the electro-magnet 11 disconnection of spring 9.

In the embodiment, the wiper 1 is provided with a slope from top to bottom, and the slope is 170-175 degrees; because the wiper 1 is designed to have an oblique angle from top to bottom, the driving force is matched with the cleaning liquid, and the sewage flows down rapidly under the action of gravity, the mechanism can clean the view port in rainy days, shortens the cleaning time, and further shortens the imaging response time of equipment;

further described herein is: the wiper has ingenious structural design and high cleaning speed. This kind of windscreen wiper design, the microstrip inclination, including windscreen wiper subassembly area automatic rising system, can realize one-way clearance function, when the windscreen wiper clearance spot, open water spray mechanism, because the design oblique angle has a top-down, the power of ordering about, the cooperation washing liquid, because the action of gravity for sewage is downflow fast, this mechanism satisfies the rainy day and just once can clean the view mouth totally, shortens clearance time, further shortening equipment is to the formation of image, response time.

The average speed of the train running to the monitoring point is 60 km/h-120 km/h, the equipment is started and is provided with magnetic steel which is triggered at a distance of 80m from the checking point and calculated according to the fastest speed of 120 km/s.

Time = journey divided by speed: t = s/v

Solution time 0.08km/120km 3600=2.4s

In other words, the time to clean the viewport must be ≦ 2.4s

For the simplicity of the mechanism, the motor is a simple direct current motor, the rotating speed is 40 revolutions per minute =0.67n/s, the gear d is 25, and the width of the viewport is 70 mm;

rack speed =0.67n/s 25 pi =52.3cm/s

The time t = s/t =70mm/52.3mm =1.38s was obtained

In summary, the following steps: when the speed of the vehicle is 120km/h, the motor can only support one-time wiping before the equipment is triggered, and the mechanism just meets the function of the mechanism.

In this embodiment, two sides of the lens 12 are provided with water spraying structures, each water spraying structure comprises a water spraying valve block 14, one side of each water spraying valve block 14 is provided with a water inlet 15, the other side of each water spraying valve block is provided with a nozzle 17, and the lens 12 is provided with a dust rainwater photoelectric sensor 5; because the viewport exposes in the open air for a long time, produce a large amount of dust and greasy dirt on the window easily, when dust and rainwater photoelectric sensor 5, detect that there are a large amount of dust and greasy dirt in lens 12 department, the water spray structure is opened, begins the pump water, by the water inlet intake, goes out water from the delivery port, goes out water from opposite linear array pore through the nozzle, as shown in fig. 3, form the water under high pressure blowout, aim at viewport glass water spray, open the windscreen wiper simultaneously and carry out one-way top-down clearance.

The method has the advantages that the dust and rainwater photoelectric sensors can be mounted in the equipment to sense the viewport in real time. The closed-loop cleaning operation for dust and oil stains in the glass viewport is formed, the function of actively sensing and timely cleaning the dust is achieved, and the normal operation of a camera imaging system is guaranteed.

In this embodiment, lens 12 is equipped with heater strip 13, and when lens 12 glass hazed, heating function was opened to resistance wire defogging device to there is PLC and sensor system to form closed loop control, can guarantee that the viewport all is the clear state constantly.

Example 2

As shown in fig. 5, a method for cleaning a viewport of a train wheelset is disclosed, which comprises the following steps:

when detecting that dust and rainwater exist on the lens 12, the electromagnet 11 is electrified to attach the lifting plate 18 to the window panel 19, and meanwhile, the driving device is started to rotate forwards to drive the wiper to act on the lens 12;

when the proximity switch detects that the wiper moves to the end position, the electromagnet 11 loses power, the lifting plate 18 and the window panel 19 are separated from the window panel 19 under the elastic force of the spring, the driving device rotates reversely to enable the wiper to return to the initial position, and when the proximity switch detects that the wiper returns to the initial position, the electromagnet 11 is electrified, and the driving device rotates forwards to drive the wiper to continue to work.

The method further comprises the following steps: the dust rainwater photoelectric sensor 5 collects the image definition of the lens, sends the image definition to the data processing module, judges whether the lens definition exceeds a preset value, and starts the heater to heat and demist the lens if the lens definition exceeds the preset value;

when the inside and outside difference in temperature of window glass is great, the phenomenon of condensing can appear on the glass surface to vapor in the air, lead to glass surface formation fog film, cause glass fuzzy, when dust and rainwater photoelectric sensor 5, when detecting the lens is fuzzy, it is specific to need to explain here, the camera gathers the image of lens 12 constantly, send the image to in image and the data processing module, compare with predetermined clear photo, if the definition satisfies predetermined vapor condensation value, with lens attitude feedback to PLC, start resistance wire controller by PLC, begin to heat, until clear.

If the image definition does not exceed the preset value, inputting the image definition into a data analysis communication module, judging whether the lens has dust or not, if so, starting a nozzle to spray high-pressure glass water, starting a wiper and cleaning the lens; open automatic windscreen wiper, open the heating simultaneously, do the clearance to the visual mouthful surface, wait to the heater strip, dry the viewport completely, detect again, see whether clear, if still unclear, open windscreen wiper mechanism once more, clear up again until the formation of image is clear. This has the advantage of ensuring that the view port is always in a clear state.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (8)

1. A train wheelset viewport cleaning device, comprising: the windscreen wiper comprises a wiper structure connected with a window panel (19) through an elastic assembly and a lens (12) arranged on the window panel (19), wherein the lens (12) is provided with a dust rainwater photoelectric sensor (5);

the windscreen wiper structure comprises a lifting plate (18), a driving device is arranged in the middle of one side, away from a window panel (19), of the lifting plate (18), sliding rails (6) are arranged at the top and the bottom of the lifting plate, a gear (3) is arranged at the output end of the driving device, a sliding block (7) is connected to the sliding rails (6) in a sliding mode, and a rack (2) meshed with the sliding block is arranged on the sliding block (7); one side of top slider (7), bottom slider (7) one side opposite with top slider (7) one side all are equipped with windscreen wiper (1), all are equipped with near opening light (8) at the initial position and the final position of windscreen wiper (1), window panel (19) correspond the position of lifter plate (18) and are equipped with electro-magnet (11).

2. The train wheel set viewport cleaning device as claimed in claim 1, wherein the elastic component comprises a guiding shaft (20) and a spring (9), the spring (9) is sleeved on the guiding shaft (20), one end of the guiding shaft (20) is slidably connected with the lifting plate (18), and the other end is fixedly connected with the window panel (19).

3. The train wheelset viewport cleaning device as claimed in claim 1, wherein the wiper (1) is sloped from top to bottom.

4. The train wheel set viewport cleaning device of claim 3, wherein the slope is 170 ° -175 °.

5. The train wheel set viewport cleaning device as claimed in claim 1, wherein the lens (12) is provided with water spraying structures on both sides, the water spraying structures comprise a water spraying valve block (14), and one side of the water spraying valve block (14) is provided with a water inlet (15) and the other side is provided with a nozzle (17).

6. Train wheelset viewport cleaning device according to claim 1, characterized in that the lens (12) is provided with heating wires (13).

7. A method for cleaning a viewport of a train wheel set, which is characterized by comprising the following steps:

when the dust rain photoelectric sensor (5) senses that rain exists on the lens (12), the electromagnet (11) is electrified, the lifting plate (18) is attached to the window panel (19), and meanwhile, the driving device is started to rotate positively to drive the wiper to act on the lens (12);

when the proximity switch (8) senses that the wiper moves to the end position, the electromagnet (11) loses power, the lifting plate (18) and the window panel (19) are separated from the window panel (19) by the elastic force of the spring, the driving device rotates reversely to enable the wiper to return to the initial position, when the proximity switch (8) senses that the wiper returns to the initial position, the electromagnet (11) is powered on, and the driving device rotates forwards to drive the wiper to continue to work.

8. The method of cleaning a train wheel set viewport of claim 7, further comprising:

the dust rain photoelectric sensor (5) collects the image definition of the lens, sends the image definition to the data processing module, judges whether the lens definition exceeds a preset value, and starts the heater to heat and demist the lens if the lens definition exceeds the preset value;

if the image definition does not exceed the preset value, the image definition is input into a data analysis communication module, whether dust exists in the lens is judged, if so, a nozzle is started to spray high-pressure glass water, and a wiper is started to clean the lens.

Images