KR102527470B1 - Snow plow applying automatic snow plow pressing pressure according to suitable for snow conditions - Google Patents

Abstract

The present invention relates to a snow plow to which an automatic snow plow pressing pressure is applied according to snowfall circumstances, wherein precision of a measurement value is improved by means of the differentiated technical realization of a snowfall surface distance measurement device which is installed at the rear surface of a snow plow plate such that the snowfall amount is more precisely detected. Therefore, the pressing pressure of the snow plow may be selectively adjusted in three stages: a strong stage, a middle stage, and a weak stage, thereby effectively performing a snow removal process. According to the snow plow of prior art, a sensor is installed on the column of the sensor, such that the sensor column is shaken by the vibration caused by the driving of the vehicle and the snow removal work, and vibration caused by wind power, thereby causing difficulties in precise measurement of the sensor. Because the ground surface and the sensor are remotely separated, delay and noise are caused in sensing, thereby causing problems in which precision of the sensor is deteriorated. To solve these problems, according to the present invention, a vibration reducing device, which is connected between a sensor enclosure and a mounting bracket installed at the rear surface of the snow plow plate, reduces vibration, wherein the sensor enclosure protects the sensor to perform precise measurement.

Description

Snow plow applying automatic snow plow pressing pressure according to suitable for snow conditions}

The present invention detects the amount of snow more accurately by improving the accuracy of the measurement value through the implementation of differentiated technology of the snow surface distance measuring device installed on the back of the snow removal plate, and then the pressing pressure of the snow removal machine is divided into three stages of strong, medium, and weak. It relates to a new concept technology that effectively performs snow removal by selectively adjusting.

In general, it is an undeniable fact that traffic congestion caused by unexpected heavy snowfall in winter and accidents caused by it are a kind of rite of passage every year despite the development of meteorological measurement.

These heavy snowfall disasters are 'underdeveloped country-type man-made disasters' caused by complacency and delayed response, and as a way to prepare for them, each local government that is entering into recent years is sufficiently equipped with various types of snow removal equipment. get into

As an example, a snow plow, which is a type of snow removal equipment, is mounted on the front of a vehicle and drives on a road to quickly remove snow accumulated on the road by pushing the snow to the shoulder of the road.

As described above, in a conventional snow plow mounted on a vehicle to effectively remove snow, the lift cylinder is selectively operated to drive the vehicle at low speed while bringing the snow blade attached to the lower end of the snow plate close to the road surface. It performs snow removal by pushing snow and compacted snow to the roadside.

All conventional snow blowers do not have a function to measure the amount of snow, so the operator gets off the snow before the snow removal operation and visually checks it using a snow plow, and then determines the snow amount measurement method. problems arise

As a way to solve such a problem, "Patent Registration No. 2424904, sensor measurement method snow removal system capable of automatically adjusting the height of a snow plow according to the name / amount of snow", which is a pre-registered invention of the applicant of the present invention, has been disclosed.

Looking at the above-described pre-registered invention, the distance to the snow surface measured through the snow surface distance measuring sensor fixedly installed on the upper side of the snow plow mounted on the vehicle and the installation angle of the snow surface distance measuring sensor are set as two variables, Disclosed is a technology for automatically adjusting the height of a snowplow according to height adjustment data set in an integrated controller after calculating the height of the snow surface, which is the remaining one variable, by applying a height calculation method using a trigonometric function.

However, in the prior art, as the sensor is installed on the sensor post, the sensor post itself is shaken due to vibration caused by driving and snow removal of the vehicle and vibration caused by wind, making it difficult to accurately measure the sensor, and the distance between the sensor and the ground is long, so there is a delay in sensing And noise is generated, which causes a problem in which the accuracy of the sensor is lowered.

In addition, the sensor has a sensor protective cover on the outside, but is installed only on the sensor support alone, so there is a risk of damage due to debris generated during snow removal while being exposed to the outside, and the sensor support is a long and thin rod compared to the snow removal plate Due to its shape, it causes a problem that is vulnerable to breakage.

In addition, compared to the sensor support, laser protection pipe, reinforcing support, etc., a separate large structure must be installed, resulting in increased cost and inconvenience.

The present invention is a means for solving the above problems, and a vibration damping device connected between a mounting bracket installed on the rear surface of a snow removal plate and a sensor housing dampens vibration, and the sensor housing protects the snow measurement sensor so that accurate measurement is possible. Develop technology to make it happen.

In addition, the sensor enclosure of the present invention passes through the left and right position adjustment slots formed in front and rear of the enclosure base and the upper and lower plates of the vibration damping device to release the tightening force of the coupled connection bolt, and then moves the enclosure base to the left and right to measure the snow cover. Investigate techniques that can optimally adjust the position of

In addition, the present invention adjusts the horizontal rotation angle of the snow measurement sensor while the rotation roll formed on the lower plate of the vibration damping device rotates inside the rotation roll housing formed on the upper end of the mounting bracket to accurately direct the laser to the center of the moving direction of the snow removal vehicle. Develop skills to enable investigation.

In addition, in the present invention, referring to the height of the snow surface generated using the distance information to the snow surface measured by the snow measurement sensor, the operator sets the pressing pressure of the snow plow through the pressing pressure selection switch to three of strong, medium, and weak. Develop a technology that can be selectively adjusted or automatically adjusted in stages.

According to the present invention, by providing the pressing pressure of the snow plow suitable for each snow situation, it is possible to prevent damage to the rubber shovel blade, the snow plow, and the snow removal vehicle in the case of residual snow, thereby increasing the durability of each device and economically saving effect can be obtained, In the case of heavy snow, it provides the effect of preventing additional accidents by not leaving residual snow through perfect snow removal.

In addition, in the present invention, the snow measurement sensor is installed on the rear side of the snow removal plate and the vibration damping device is applied to attenuate vibration caused by driving and snow removal of the snow removal vehicle, and there is almost no vibration caused by wind, so the accuracy of sensing can be increased. In addition, since the distance between the snow measurement sensor and the ground is close, there is almost no delay and noise, so the accuracy of sensing is greatly improved to accurately identify each snowfall situation and provide the effect of automatically performing snow removal optimized for each snowfall situation. do.

In addition, in the snow measurement sensor of the present invention, foreign substances and debris generated during snow removal are protected by a snow removal plate and safely protected by a more robust sensor housing, and there is no mechanical damage to the sensor housing in which the snow measurement sensor is installed, Compared to a snow plow, a very small snow surface distance measurement device can be manufactured and installed in advance like an off-the-shelf product, thereby reducing cost and eliminating the hassle of installation.

1 is a front view of a snow plow to which the present invention is applied
Figure 2 is a side cross-sectional view of the snow remover of the present invention
Figure 3 is a side cross-sectional view of the installation state of the snow surface distance measuring device of the present invention
Figure 4 is a front view of the snow surface distance measuring device of the present invention
5 is a front cross-sectional view of the snow surface distance measuring device of the present invention
6 is a side cross-sectional view of the snow surface distance measuring device of the present invention
7 is a plan view of the left and right position adjustment state of the sensor enclosure of the present invention
Figure 8 is a front cross-sectional view of the separated state of the rotary roll and the rotary roll housing of the present invention
9 is a plan view of the mounting bracket of the present invention
10 is a front view of the control box of the present invention

It will be described with respect to a preferred embodiment for more specifically implementing the solution to the problem to be solved by the present invention.

Looking schematically at the overall configuration according to a preferred embodiment of the present invention based on the accompanying drawings, it is installed on the rear side of the snow removal plate 2 of the snow removal machine 1 and minimizes the distance between the snow measurement sensor 40 and the ground while minimizing the snow surface A snow surface distance measuring device (L) for measuring the distance to (3) is provided, and the snow surface distance measuring device (L) includes a mounting bracket 10, a vibration damping device 20, a sensor housing 30, It can be seen that it is largely divided into the components of the snow measurement sensor 40 and the tempered glass 50.

Hereinafter, the present invention consisting of the above schematic configuration will be described in more detail to facilitate implementation.

First of all, in the present invention, the snow surface distance measuring device (L) is installed on the rear side of the snow removal plate (2) and the vibration damping device (20) is applied to attenuate the vibration caused by the driving and snow removal work of the snow removal vehicle, and the wind power The dominant feature is that the accuracy of sensing can be increased because there is almost no vibration caused by the snow, and since the distance between the snow measurement sensor 40 and the ground is close, there is almost no delay and noise, greatly improving the accuracy of sensing.

As a technical configuration for this purpose, the vibration damping device 20 is integrally installed on the upper part of the mounting bracket 10 mounted by bolting to a pair of mounting protrusions 2a attached to the back of the snow removal plate 2 of the snow removal machine 1. To be connected, the vibration damping device 20 has an elastic body 23 integrally interposed between the upper plate 21 and the lower plate 22, and the elastic body 23 has a plurality of reinforcing cores in the left and right directions therein ( 24) is inserted, and the reinforcing core 24 is formed with reinforcing wings 24a protruding upward and downward, thereby further reinforcing the strength of the elastic body 23 and improving durability, and the elastic body 23 removes the snow plate 2. Vibration transmitted through the sensor 40 is damped to provide an effect of improving the sensing accuracy of the snow measurement sensor 40 .

Here, the elastic body 23 is provided with anti-twisting grooves 21a formed recessed in the lower surface of the upper plate 21 and the upper surface of the lower plate 22 so as to maintain solid integrity with the upper plate 21 and the lower plate 22 ( By fitting both upper and lower sides to 22a), it is possible to maintain a more solid integrity while preventing distortion.

A box-shaped sensor housing 30 is installed on the top of the top plate 21 to safely protect the snow measurement sensor 40 from external force, and the front cover 32 connected to the front of the sensor housing 30 by a hinge 31 ) is installed to open and close, so that the snow measurement sensor 40 can be maintained, and at the center of the front side, the laser irradiated from the snow measurement sensor 40 is refracted in a desired direction so that it is accurately irradiated to the snow surface 3. The refracting lens 33 that exhibits is integrally fixed and installed through the front cover 32.

And, the snow measurement sensor 40 is installed inside the sensor housing 30, and the laser irradiated from the snow measurement sensor 40 is refracted downwardly by the refracting lens 33 as shown in FIGS. 2 and 3. After being irradiated through the tempered glass 50, the distance to the snow surface 3 can be accurately measured.

In addition, the snow removal plate 2 adjacent to the sensor housing 30 is reinforced so that the laser refracted by the refracting lens 33 can pass through the snow removal plate 2 and be smoothly irradiated to the snow surface 3 The glass 50 penetrates the snow removal plate 2 and is integrally fixed, and the tempered glass 50 is made of a material that functions to smoothly transmit the refracted laser as shown in FIG. 3 .

That is, the snow measurement sensor 40 of the present invention safely protects the snow measurement sensor 40 while the snow removal plate 2 blocks foreign substances and debris generated during snow removal due to the nature of being installed on the rear side of the snow removal plate 2, In this process, considering that the laser cannot pass through the snow removal plate 2, the installed tempered glass 50 has the specificity and effect of the purpose of enabling the laser to be accurately irradiated to the snow surface 3 by smoothly penetrating the laser. .

Here, on the lower side of the tempered glass 50, a floating prevention plate 55 in a curved shape is installed on the front of the snow removal plate 2, and the floating prevention plate 55 rides the snow removal plate 2 during the snow removal operation. By blocking the rising snow from reaching the tempered glass 50 and the laser path, an effect that the laser can be smoothly irradiated is provided.

In the present invention, the operator can guide the operator by referring to the height of the snow surface 3 calculated by the height calculation method using the trigonometric function using the distance information to the snow surface 3 measured by the snow measurement sensor 40. As shown in 10, through the pressing pressure selection switch 101 of the control box 100 installed in the driver's seat of the snow removal vehicle, the snow removal operation can be performed while selecting and adjusting the pressing pressure of the snow plow 1 in three stages of strong, medium, and weak. In addition, when the height of the corresponding snow surface 3 preset in three stages of strong, medium, and weak is detected without the operator's selection, the pressing pressure can be automatically adjusted.

Therefore, in the present invention, in the case of residual snow, the pressing pressure is strong, and the rubber shovel blade, the snow removal machine (1), and the snow removal vehicle are damaged, and in the case of heavy snow, the pressing pressure is insufficient, so that residual snow remains after the snow removal operation and the snow removal operation is not performed properly. It provides the effect of completely resolving the conventional problem that the remaining snow is frozen or pressed and compressed, leading to a major accident.

On the other hand, in the present invention, a novel technology for improving the sensing accuracy by optimizing the installation position of the snow measurement sensor 40 while moving the enclosure base 34 left and right is grafted.

As a technical configuration for this, the sensor housing 30 has left and right positioning slots 35 formed in front and behind the housing base 34 formed in the lower part, respectively, as shown in FIGS. 5 and 7, and these left and right positioning slots 35 A plurality of connection bolts 26 penetrate through both sides of the upper plate 21 and the lower plate 22 and the nuts 27 are coupled so that the sensor housing 30 and the vibration damping device 20 maintain mutual integrity, In the case of adjusting the initial position of the snow measurement sensor 40, the snow measurement sensor 40 moves the enclosure base 34 to the left and right in a state in which the nut 27 is loosened and the tightening force of the connecting bolt 26 is released. It is possible to improve the accuracy of distance measurement by adjusting the position of the optimally.

In addition, in the present invention, in order to push snow to the shoulder during snow removal, the snow removal plate 2 is rotated horizontally and the snow removal operation is performed in a state obliquely positioned toward the shoulder, so the laser irradiated from the snow measurement sensor 40 is a snow removal vehicle In consideration of the fact that the irradiation is not precisely in the center of the direction of travel, but is irradiated at a point slightly off to the shoulder, a technology that can compensate for this is additionally grafted.

As a technical configuration for this purpose, a rotary roll 28 is protruded from the center of the lower surface of the lower plate 22, and the rotary roll 28 is a bearing inside the rotary roll housing 11 formed on the top of the mounting bracket 10. It is rotatably inserted and installed via (12).

Therefore, by adjusting the horizontal rotation angle of the snow measurement sensor 40 by rotating the lower plate 22, the laser can be accurately irradiated to the snow surface 3 in the center of the moving direction of the snow removal vehicle, thereby improving the accuracy of distance measurement. Provides special effects that can be further enhanced.

Here, the present invention is a technology of an automatic rotation prevention means 60 that automatically maintains locking and prevents rotation when the rotation operation of the lower plate 22 is completed so that the snow measurement sensor 40 can maintain a fixed state. As this is additionally grafted, the automatic rotation prevention means 60 has a ball plunger fixing sleeve 61 attached to one bottom surface of the lower plate 22 as shown in FIGS. 8 to 9, and the lower plate 22 and the ball flange A ball plunger 62 is screwed and installed through the plunger fixing sleeve 61, and a plurality of anti-rotation balls 63 of the ball plunger 62 are formed along the circumferential direction on the upper surface of the mounting bracket 10. By being inserted into any one of the ball grooves 64, rotation of the snow measurement sensor 40 is prevented while automatically maintaining locking, thereby further improving the accuracy of distance measurement.

L: snow surface distance measurement device 1: snow plow
2: snow removal plate 2a: mounting protrusion
3: snow surface 10: mounting bracket
11: rotating roll housing 12: bearing
20: vibration damping device 21: top plate
22: lower plate 23: elastic body
24: reinforcing core 26: connecting bolt
27: nut 28: rotating roll
30: sensor enclosure 32: front cover
33: refracting lens 34: housing base
35: left and right position adjustment slot 40: snow measurement sensor
50: tempered glass 55: injury prevention plate
60: automatic rotation prevention means 61: ball plunger fixing sleeve
62: ball plunger 63: anti-rotation ball
64: ball groove 100: control box
101: pressing pressure selection switch

Claims (6)

Vibration damping device 20 connected to the upper part of the mounting bracket 10 mounted on the rear side of the snow removal plate 2 of the snow remover 1 and having an elastic body 23 interposed between the upper plate 21 and the lower plate 22 )and;
A refracting lens 33 is installed at the top of the top plate 21 and refracts the laser irradiated from the snow measurement sensor 40 so that it is irradiated to the snow surface 3 at the center of the front cover 32 that can be opened and closed. a sensor enclosure 30;
a snow measurement sensor 40 installed inside the sensor housing 30 and measuring the distance to the snow surface 3 by radiating laser to the ground through the refracting lens 33;
It is installed through the snow removal plate 2 and is provided with a snow surface distance measuring device L configured to include a tempered glass 50 that allows the laser refracted by the refracting lens 33 to pass through. ;
Using the distance information to the snow surface 3 measured by the snow measurement sensor 40, the operator operates the control box 100 by referring to the height of the snow surface 3 calculated by the height calculation method using a trigonometric function. The snow removal operation is performed while selecting and adjusting the pressing pressure of the snowplow 1 in three stages of strong, medium, and weak through the provided pressing pressure selection switch 101;
The elastic body 23 of the vibration damping device 20 is a snow blower applying an automatic snow blower pressing pressure suitable for the snow situation, characterized in that a plurality of reinforcement cores 24 are inserted in the left and right directions therein.
delete Vibration damping device 20 connected to the upper part of the mounting bracket 10 mounted on the rear side of the snow removal plate 2 of the snow remover 1 and having an elastic body 23 interposed between the upper plate 21 and the lower plate 22 )and;
A refracting lens 33 is installed at the top of the top plate 21 and refracts the laser irradiated from the snow measurement sensor 40 so that it is irradiated to the snow surface 3 at the center of the front cover 32 that can be opened and closed. a sensor enclosure 30;
a snow measurement sensor 40 installed inside the sensor housing 30 and measuring the distance to the snow surface 3 by radiating laser to the ground through the refracting lens 33;
It is installed through the snow removal plate 2 and is provided with a snow surface distance measuring device L configured to include a tempered glass 50 that allows the laser refracted by the refracting lens 33 to pass through. ;
Using the distance information to the snow surface 3 measured by the snow measurement sensor 40, the operator operates the control box 100 by referring to the height of the snow surface 3 calculated by the height calculation method using a trigonometric function. The snow removal operation is performed while selecting and adjusting the pressing pressure of the snowplow 1 in three stages of strong, medium, and weak through the provided pressing pressure selection switch 101;
The sensor housing 30 has left and right positioning slots 35 formed in front and behind the lower housing base 34, respectively, and a plurality of both sides of the left and right positioning slots 35 and the upper plate 21 and the lower plate 22 On the other hand, the connecting bolt 26 penetrates and is integrally connected to the coupling of the nut 27;
After loosening the nut 27 and releasing the tightening force of the connecting bolt 26, the position of the snow measurement sensor 40 is adjusted while moving the housing base 34 left and right, automatically suitable for snow conditions, characterized in that Snow plow A snow plow applied with pressing pressure.
Vibration damping device 20 connected to the upper part of the mounting bracket 10 mounted on the rear side of the snow removal plate 2 of the snow remover 1 and having an elastic body 23 interposed between the upper plate 21 and the lower plate 22 )and;
A refracting lens 33 is installed at the top of the top plate 21 and refracts the laser irradiated from the snow measurement sensor 40 so that it is irradiated to the snow surface 3 at the center of the front cover 32 that can be opened and closed. a sensor enclosure 30;
a snow measurement sensor 40 installed inside the sensor housing 30 and measuring the distance to the snow surface 3 by radiating laser to the ground through the refracting lens 33;
It is installed through the snow removal plate 2 and is provided with a snow surface distance measuring device L configured to include a tempered glass 50 that allows the laser refracted by the refracting lens 33 to pass through. ;
Using the distance information to the snow surface 3 measured by the snow measurement sensor 40, the operator operates the control box 100 by referring to the height of the snow surface 3 calculated by the height calculation method using a trigonometric function. The snow removal operation is performed while selecting and adjusting the pressing pressure of the snowplow 1 in three stages of strong, medium, and weak through the provided pressing pressure selection switch 101;
A rotary roll 28 protrudes from the lower center of the lower plate 22, and the rotary roll 28 is rotatably inserted into the rotary roll housing 11 formed on the upper end of the mounting bracket 10. Meanwhile;
Pressing the automatic snow plow suitable for the snow situation, characterized in that by rotating the lower plate 22 to adjust the horizontal rotation angle of the snow measuring sensor 40 and irradiating the laser to the snow surface 3 in the center of the moving direction of the snow removal vehicle Snow blower with applied pressure.
According to claim 4,
The ball plunger 62 is installed through the ball plunger fixing sleeve 61 attached to the bottom surface of one side of the lower plate 22, and the anti-rotation ball 63 of the ball plunger 62 is of the mounting bracket 10. It is inserted into any one of the plurality of ball grooves 64 formed along the circumferential direction on the upper surface and automatically maintains locking to prevent rotation. A snow blower that applies the right automatic snow blower pressure.
According to claim 1,
An anti-floating plate 55 is installed on the front of the lower snow removal plate 2 of the tempered glass 50, and the anti-floating plate 55 prevents snow floating on the snow removal plate 2 during the snow removal operation. (50) and a snow blower applying an automatic snow blower pressing pressure suitable for the snow situation, characterized in that to block it from reaching the laser path.

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