CN210712712U - A large-scale snow and ice removal mechanism with a more firm blade combination - Google Patents

Abstract

The utility model discloses a large-scale snow and ice removing operation mechanism with a more firmly combined blade, comprising an installation bracket assembly, a snow and ice removal operation mechanism assembly installed on the installation bracket assembly for rolling and removing ice and snow, and fixedly arranged on both sides of the installation bracket assembly The support wheel mounting bracket at the bottom of the support wheel, the support wheel installed at the lower end of the support wheel mounting bracket, the blade height adjusting screw fixedly connected to the side of the support wheel mounting bracket and used to adjust the distance between the support wheel and the snow and ice removal mechanism components, and Securely mount the pine snow ice comb on the front of the mounting bracket assembly between the two support wheel mounting brackets. The utility model has the advantages of high blade bonding strength and easy replacement, uncomplicated overall structure for snow and ice removal, low production, preparation and maintenance costs, etc., and can be suitable for clearing expressways, expressways, airport runways and other wide roads to compact snow and solid ice Floor.

Description

A large-scale snow and ice removal mechanism with a more firm blade combination

technical field

The utility model relates to the technical field of road snow removal equipment, in particular to a large-scale snow and ice removal operation mechanism suitable for compacted snow and solid ice removal on wide roads such as expressways, expressways, and airport runways. .

Background technique

In some cities in northern my country and a few coastal areas, snow disasters are common natural disasters in winter. The snow that has not been removed in time is repeatedly broken by pedestrians and vehicles, forming a dense, high-hard, compressed hard snow layer. The hard snow layer continuously melts and freezes due to changes in ambient temperature, forming a dense and solid ice layer with high density, high hardness, and strong adhesion to the road surface, making it difficult to remove. In some sections of up and down ramps, turns, expressways, expressways, airport runways, etc., if the compacted snow and solid ice on the road surface cannot be removed in time, the probability of traffic accidents will greatly increase, which will bring people to travel. inconvenient. Therefore, snow and ice removal in winter has become an important task for the road transportation sector.

At this stage, for the cleaning of snow and ice layers in urban motor vehicle lanes, mainly rolling-type snow and ice removal vehicles and mechanical cleaning are used. Invention patent ZL201610615404.0 discloses a snow pushing device for a high-speed snow removal vehicle, which mainly includes a car hanger, a steering seat, a main support frame and a main board for pushing snow; The lower end of the main board of the body type snow pusher is provided with a shovel edge buffer piece guard plate, the shovel edge buffer piece guard plate is provided with a shovel edge, and both sides of the shovel edge are respectively provided with shovel edge protection blocks; the snow pushing device according to the invention has It has the advantages of uniform force, not easy to deform, and long service life, but the cutting edge is fixed on the cutting edge buffer guard plate by welding, resulting in low bonding strength between the cutting edge and the cutting edge buffer piece guard plate, and it is not easy to replace. Due to the complex overall structure, high production preparation and maintenance costs, it is difficult to widely popularize and apply. Therefore, based on the technical development status of the mechanical snow and ice removal mechanism and the problems existing in the existing road surface snow and ice removal equipment, it is necessary to develop a large-scale snow and ice removal mechanism with a stronger blade combination. First, it has the strength of blade combination. It has the characteristics of high height and easy replacement, as well as simple overall structure and low production and maintenance costs, making it suitable for clearing wide roads such as expressways, expressways, and airport runways to compact snow and solid ice.

Utility model content

Based on the above technical background, the present utility model provides a large-scale snow and ice removing operation mechanism with a stronger blade combination, which has the characteristics of high blade combination strength and easy replacement, an uncomplicated overall structure for snow and ice removal, and low production, preparation and maintenance costs. It is suitable for clearing compacted snow and solid ice on wide roads such as expressways, expressways, and airport runways.

In order to realize the above-mentioned technical goal, the technical scheme adopted by the present utility model is:

A large-scale snow and ice removal operation mechanism with a more firm blade combination, comprising a mounting bracket assembly, a snow and ice removal operation mechanism assembly installed on the mounting bracket assembly for rolling and removing ice and snow, and a support wheel that is fixedly arranged on both sides of the mounting bracket assembly. Bracket, the support wheel installed at the lower end of the support wheel mounting bracket, the blade height adjustment screw that is fixedly connected to the side of the support wheel mounting bracket and used to adjust the distance between the support wheel and the snow and ice removal mechanism assembly, and the blade height adjustment screw that is fixedly installed on the mounting bracket assembly Pine snow ice comb on the front and between the two support wheel mounting brackets.

As a further improvement of the present invention, the snow and ice removing operation mechanism assembly includes a drum rotatably connected to the mounting bracket assembly at both ends, and a row of blades that are radially and equiangularly distributed along the outer circumference of the cylinder. The outer circumference of the drum is axially arranged with a number of shovels at equal intervals;

The blades of two adjacent blade rows are staggered;

The number of the blade rows is more than four.

As a further improvement of the present invention, the drum is provided with a blade positioning groove and a connecting plate on one side of the blade positioning groove;

The connecting plate is provided with a connecting plate blade installation hole for fixing and connecting the blade; the blade is provided with a blade installation hole matching the blade installation hole;

The bottom of the blade is inserted into the blade positioning groove, and the blade is fixedly mounted on the connecting plate through the blade installation hole and the blade installation hole through the fastening bolt.

As a further improvement of the present invention, the back of the connecting plate is provided with a reinforcing rib, and the reinforcing rib is welded and fixed between the back of the connecting plate and the drum.

As a further improvement of the present invention, the drum, the connecting plate and the blade positioning groove are prepared in one piece.

As a further improvement of the present invention, the number of the rollers is two, and the two rollers are symmetrically mounted on the mounting bracket assembly;

The two ends of each drum are respectively connected to the power output shaft, and the two power output shafts on the opposite sides of the two drums are respectively fixed and installed with two symmetrically distributed pulleys, and the pulleys are fixed on the power on the output shaft;

The two pulleys receive the power transmitted by the engine of the traction locomotive of the snow and ice removing operation mechanism through the belt, so as to provide the driving force for the rotation of the two drums.

As a further improvement of the present invention, two sides of the mounting bracket assembly are provided with power output shaft mounting holes;

The two power output shafts on the opposite sides of the two rollers are respectively rotatably installed in the corresponding power output shaft mounting holes;

The centers of the two pulleys are fixedly connected by a coupling, so that the two rollers rotate synchronously.

As a further improvement of the present utility model, the center of the support wheel is fixed with a central shaft that is rotatably connected to the mounting bracket assembly;

The blade height adjusting lead screw includes a fixed seat fixedly welded on the side of the support wheel mounting bracket, a threaded hole opened on the fixed seat, and a threaded rod threaded in the threaded hole; the lower end of the threaded rod is connected to the central axis The upper end of the threaded rod is fixedly provided with a hand wheel; by rotating the hand wheel to adjust the height of the blade, the lead screw drives the relative position of the support wheel and the drum, so that the blade of the blade can shovel into the ice and snow layer.

As a further improvement of the present invention, the inward inclination angle of the cutting edge of the blade is α, and α is less than 90°.

As a further improvement of the present invention, the material of the pine snow ice comb is hard nylon, which is located on the front side of the drum.

Compared with the prior art, the beneficial effects obtained by the present utility model are as follows:

The utility model overcomes the defects of the existing mechanical snow and ice removing operation mechanism, can conveniently and quickly adjust the cutting depth of the blade according to the thickness of the ice and snow layer, and has the advantages of high bonding strength of the blade and easy replacement, uncomplicated overall structure of snow and ice removal, and high production efficiency. With the advantages of low preparation and maintenance costs, it can be suitable for clearing snow and solid ice on wide roads such as expressways, expressways, and airport runways.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the structural schematic diagram of the snow and ice removing operation mechanism assembly of the present invention;

Fig. 3 is the drum and the shovel structure schematic diagram of the present utility model;

Fig. 4 is the structural representation of the blade of the present utility model;

FIG. 5 is a schematic view of the structure of the mounting bracket assembly of the present invention.

Among them: 1. Snow and ice removal operation mechanism components; 1-1, blade; 1-1-1, blade installation hole; 1-2, drum; 1-3, connecting plate; 1-3-1, connecting plate shovel Knife mounting hole; 1-4, blade positioning groove; 1-5, reinforcing rib; 1-6, power output shaft; 1-7, pulley; 1-8, coupling; 2, mounting bracket assembly; 2-1. Mounting hole for power output shaft; 3. Support wheel; 4. Mounting bracket for support wheel; 5. Screw for blade height adjustment; 6. Hand wheel, 7. Pine snow and ice comb.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

As shown in Figures 1-5, a large-scale snow and ice removal mechanism with a more firm blade combination includes a mounting bracket assembly 2, a snow and ice removal mechanism assembly 1 installed on the mounting bracket assembly 2 and used to roll and remove ice and snow, and is fixedly set The support wheel mounting brackets 4 on both sides of the mounting bracket assembly 2, and the support wheel 3 mounted on the lower end of the support wheel mounting bracket 4 are fixedly connected to the side of the support wheel mounting bracket 4 for adjusting the support wheel 3 and the snow and ice removal mechanism assembly The blade height adjustment screw 5 with the distance between 1 and the snow-snow ice comb 7 fixedly installed in the front of the mounting bracket assembly 2 and located between the two supporting wheel mounting brackets 4 . The snow and ice removal mechanism assembly 1 is the core component, and the other structures are auxiliary components.

Further, the snow and ice removing operation mechanism assembly 1 includes a drum 1-2 rotatably connected to the mounting bracket assembly 2 at both ends, and a row of shovel blades that are radially and equiangularly distributed along the outer circumference of the drum 1-2. A plurality of shovels 1-1 are arranged in the knife row at equal intervals along the outer circumference of the drum 1-2 in the axial direction;

The blades 1-1 of two adjacent blade rows are staggered;

The number of the blade rows is more than four, the number of blades 1-1 in the blade row in one row is equal, and the difference between the number of blades 1-1 in adjacent blade rows is 1.

Further, the drum 1-2 is provided with a blade positioning groove 1-4 and a connecting plate 1-3 located on one side of the blade positioning groove 1-4;

The connecting plate 1-3 is provided with a connecting plate blade installation hole 1-3-1 for fixing and connecting the blade 1-1; the blade 1-1 is provided with a blade installation hole 1-3- 1 Matching blade mounting hole 1-1-1;

The bottom of the blade 1-1 is inserted into the blade positioning groove 1-4, and the blade 1- 1Fix it to the connecting plate 1-3.

Further, the back of the connecting plate 1-3 is provided with a reinforcing rib 1-5, and the reinforcing rib 1-5 is welded and fixed between the back of the connecting plate 1-3 and the drum 1-2.

Further, the drum 1-2, the connecting plate 1-3 and the blade positioning groove 1-4 are prepared in one piece.

Further, the number of the rollers 1-2 is two, and the two rollers 1-2 are symmetrically mounted on the mounting bracket assembly 2;

The two ends of each drum 1-2 are respectively connected to the power output shafts 1-6, and two symmetrically distributed pulleys are fixedly installed on the two power output shafts 1-6 on the opposite sides of the two drums 1-2. 1-7, the pulley 1-7 is fixed on the power output shaft 1-6 by means of key connection;

The two pulleys 1-7 receive the power transmitted by the engine of the traction locomotive of the snow and ice removing operation mechanism through the belt, so as to provide the driving force for the rotation of the two drums 1-2.

Further, both sides of the mounting bracket assembly 2 are provided with power output shaft mounting holes 2-1;

The two power output shafts 1-6 on the opposite sides of the two rollers 1-2 are respectively rotatably installed in the corresponding power output shaft mounting holes 2-1;

The centers of the two pulleys 1-7 are fixedly connected through a coupling 1-8, so that the two rollers 1-2 rotate synchronously.

Further, the center of the support wheel 3 is fixed with a central axis that is rotatably connected to the mounting bracket assembly 2;

The blade height adjusting screw 5 includes a fixed seat fixedly welded on the side of the support wheel mounting bracket 4, a threaded hole opened on the fixed seat, and a threaded rod threaded in the threaded hole; the lower end of the threaded rod is connected The central shaft, the upper end of the threaded rod is fixedly provided with a hand wheel 6; by rotating the hand wheel 6 to adjust the height of the blade, the adjusting screw 5 drives the relative position of the support wheel 3 and the drum 1-2, so that the shovel of the blade 1-1 can be adjusted. Blade shovels into ice and snow.

Further, the inward inclination angle of the cutting edge of the blade 1-1 is α, and α is less than 90 degrees.

Further, the material of the pine snow ice comb 7 is hard nylon, which is located on the front side of the drum 1-2.

Example 1

As shown in FIG. 1 , the present utility model specifically relates to a large-scale snow and ice removing operation mechanism with a more firmly combined blade. The main structure and function of the blade height adjustment screw 5, the hand wheel 6, the pine snow ice comb 7, etc. are as follows.

As shown in Figure 1, Figure 2 and Figure 3, the blade 1-1 is installed on the connecting plate 1-3 by means of bolts, and the lower end of the blade and blade 1-1 is inserted into the blade positioning groove 1- In 4, the depth of the blade positioning groove 1-4 is 16 mm, and a reinforcing rib 1-5 is provided to enhance the impact load resistance of the blade 1-1 and the connecting plate 1-3. Since the drum 1-2, the connecting plate 1-3 and the blade positioning groove 1-4 are made by integral casting, the fixed installation of the blade 1-1 on the drum 1-2 is realized; 1-4. The existence of the reinforcing rib 1-5 enhances the high-speed rotating blade 1-1 to resist the impact load from the compacted snow and hard ice on the road, thus greatly improving the blade 1-1. The bonding strength makes it difficult to break and fall off, that is, the combination of the blade 1-1 and the drum 1-2 is more firm; due to the installation of the blade installation hole 1-1-1 and the connection plate blade installation hole 1-3-1 , the fixed installation of the blade 1-1 and the drum 1-2 can be realized by means of bolt tightening, so the replacement of the damaged blade 1-1 is simpler.

As shown in Figures 2 and 3, six rows of blades 1-2 are arranged on the drum 1-2, and the number of blades 1-2 in each row is 6-7; in the axial direction, each row of blades 1-2 -1 are arranged at equal intervals on the drum 1-2; in the radial direction, the blades 1-1 of two adjacent rows are arranged in a cross. As shown in Figure 4, the blade 1-1 is made of high manganese steel with excellent wear resistance and impact resistance. Its overall length is 65 mm, its width and thickness are 90 mm and 12 mm, respectively. The blade mounting hole 1 The hole diameter of -1-1 is 12 mm, the length of the cutting edge of blade 1-1 is 15 mm, and the inclination angle α of the cutting edge is set to 75°.

As shown in Figure 1, Figure 2 and Figure 3, the rollers 1-2 need high speed, high torque, and large impact load during the snow and ice removal operation, so the material is set to 45# steel. At the same time, the heat treatment process of normalizing and tempering is carried out to improve its strength. According to the width of my country's motor vehicle lane of 3 meters, the length of each roller 1-2 is set to 1.5 meters, and the diameter of the rollers 1-2 is 440 mm; the length of the mounting bracket assembly 2 for installing the two rollers 1-2 is 3.2 Meter. According to the strength of the compacted snow and solid ice layer on the road, set the rotation speed of two kinds of rollers 1-2, that is, the high-speed gear is 600 r/min, and the low-speed gear is 360 r/min. The diameter of the two support wheels 3 is 120 mm, which are fixed by the support wheel mounting brackets 4, and are mounted on both ends of the mounting frame assembly 2 by welding to assist in supporting the snow and ice removal mechanism 1 to maintain the snow and ice removal mechanism. 1 The stability of forward travel. In order to adapt to the efficient removal of compacted snow and solid ice layers of different thicknesses on the road, a blade height adjustment screw 5 is set, and a hand wheel 6 is set on the upper end of the blade height adjustment screw 5 to adjust the blade 1- The height of the cutting edge of 1 and the road surface, the principle is that the height of the blade is adjusted by the screw 5 to adjust the height of the support wheel 3 and the ground, and the distance between the mounting bracket assembly 2 supported by the support wheel 3 and the road surface changes. The relative position of -2 and the mounting bracket assembly 2 is fixed, and the position of the blade 1-1 on the drum 1-2 is also fixed, so that the distance between the blade 1-1 and the road surface changes; blade height adjustment screw 5 The stroke is 120 mm, that is, the height adjustment range of the blade 1-1 cutting edge and the road surface can reach a maximum of 120 mm.

As shown in FIGS. 1 and 5 , the function of the mounting bracket assembly 2 is to provide a mounting carrier for the snow and ice removal mechanism assembly 1 to ensure the stability of the snow and ice removal mechanism assembly 1 during high-speed operation. The length of the mounting bracket assembly 2 is 3.2 meters, and adopts a steel truss structure welded by angle iron. The mounting bracket assembly 2 is provided with 4 power output shaft mounting holes 2-1. The diameter of the power output shaft mounting hole 2-1 is 60 mm, which is used to fix the power output shafts 1-6 and implement the power required for the high-speed rotation of the drum 1-2. transmission. The snow and ice comb 7 is fixed to the front and upper end of the mounting frame assembly 2 by bolts, the length is 3.0 meters, and the material is hard nylon. Its function is to loosen the compacted snow and solid ice layers on the road, so as to improve the blade -2 snow and ice removal efficiency.

The working process of a shovel of the utility model combined with a more solid large-scale snow and ice removal operation mechanism: before the road snow and ice removal operation, the thickness of the ice layer is measured to be 5 cm, and the height of the shovel is adjusted by rotating the handwheel 6 to adjust the lead screw 5. Make the cutting edge of blade 1-1 move down 5 cm, that is, the distance from the road surface is close to 0 cm, and the distance from the compacted snow and solid ice layer is 5 cm. Due to the relatively large thickness of the compacted snow and the solid ice layer, rotate at a low speed to block Chen Xuebing, that is, the rotation speed of the drum 1-2 is 360 r/min. The large-scale snow and ice removal mechanism is set up to pull the locomotive at a travel speed of 5-10 km/h. Under the cutting action of the high-speed rotating blade 1-1, the compacted snow and solid ice layers on the road are broken and separated from the road surface. Removed by cleaning device. After the road compaction snow and solid ice removal operations are completed, turn off the power of the drum 1-2 to stop the high-speed rotation of the drum 1-2, and then clean up the snow and ice removal operation mechanism component 1, so that the road ice can compact the snow and ice next time. Required for solid ice removal operations.

Claims (10)

1. The utility model provides a shovel sword combines more firm large-scale snow ice operation mechanism which characterized in that: the snow and ice removing mechanism comprises a mounting bracket component (2), a snow and ice removing operation mechanism component (1) which is arranged on the mounting bracket component (2) and used for rolling and removing snow and ice is fixedly arranged, supporting wheel mounting brackets (4) which are arranged at the two side parts of the mounting bracket component (2) are fixed, supporting wheels (3) which are arranged at the lower ends of the supporting wheel mounting brackets (4) are fixedly arranged, and a scraper knife height adjusting lead screw (5) which is fixedly connected to the side parts of the supporting wheel mounting brackets (4) and used for adjusting the distance between the supporting wheels (3) and the snow and ice removing operation mechanism component (1) and a snow and ice loosening comb (7) which is fixedly arranged at the front part of the mounting bracket component.

2. A large-sized snow and ice removing working mechanism with a more firmly combined scraper knife according to claim 1, characterized in that: the snow and ice removing operation mechanism component (1) comprises a roller (1-2) with two ends rotatably connected to the mounting bracket component (2) and a plurality of scraper knife rows which are radially and equiangularly distributed along the outer circumference of the roller (1-2), and the scraper knife rows are axially and equidistantly provided with a plurality of scraper knives (1-1) along the outer circumference of the roller (1-2);

the shovel blades (1-1) of two adjacent shovel blade rows are arranged in a staggered manner;

the number of the shovel blade rows is more than four.

3. A large-sized snow and ice removing working mechanism with a more firmly combined scraper knife according to claim 2, characterized in that: the roller (1-2) is provided with a scraper knife positioning groove (1-4) and a connecting plate (1-3) positioned on one side of the scraper knife positioning groove (1-4);

the connection plate scraper knife mounting holes (1-3-1) for fixedly connecting the scraper knives (1-1) are formed in the connection plate (1-3); the scraper knife (1-1) is provided with a scraper knife mounting hole (1-1-1) matched with the connecting plate scraper knife mounting hole (1-3-1);

the bottom of the scraper knife (1-1) is inserted into the scraper knife positioning groove (1-4), and the scraper knife (1-1) is fixedly installed on the connecting plate (1-3) through a fastening bolt penetrating through the scraper knife installing hole (1-3-1) and the scraper knife installing hole (1-1-1) of the connecting plate.

4. A large-sized snow and ice removing working mechanism with a more firmly combined scraper knife according to claim 3, characterized in that: the back of the connecting plate (1-3) is provided with a reinforcing rib plate (1-5), and the reinforcing rib plate (1-5) is welded and fixed between the back of the connecting plate (1-3) and the roller (1-2).

5. A large-scale snow and ice removing mechanism with a more firmly combined scraper knife according to claim 4, characterized in that: the roller (1-2), the connecting plate (1-3) and the scraper knife positioning groove (1-4) are integrally processed and prepared.

6. A large-sized snow and ice removing working mechanism with a more firmly combined scraper knife according to claim 2, characterized in that: the number of the rollers (1-2) is two, and the two rollers (1-2) are symmetrically arranged on the mounting bracket assembly (2);

two ends of each roller (1-2) are respectively in transmission connection with a power output shaft (1-6), two symmetrically distributed belt pulleys (1-7) are respectively and fixedly installed on the two power output shafts (1-6) on the opposite sides of the two rollers (1-2), and the belt pulleys (1-7) are fixed on the power output shafts (1-6) in a key connection mode;

the two belt pulleys (1-7) receive power transmitted by an engine of a traction locomotive of the snow and ice removing operation mechanism through a belt so as to provide driving force for the rotation of the two rollers (1-2).

7. A large-scale snow and ice removing mechanism with a more firmly combined scraper knife according to claim 6, characterized in that: two side parts of the mounting bracket assembly (2) are provided with power output shaft mounting holes (2-1);

two power output shafts (1-6) at the opposite sides of the two rollers (1-2) are respectively and rotatably arranged in the corresponding power output shaft mounting holes (2-1);

the centers of the two belt pulleys (1-7) are fixedly connected through a coupling (1-8) so as to enable the two rollers (1-2) to synchronously rotate.

8. A large-sized snow and ice removing working mechanism with a more firmly combined scraper knife according to claim 3, characterized in that: a central shaft which is rotatably connected with the mounting bracket assembly (2) is fixed at the center of the supporting wheel (3);

the scraper knife height adjusting screw rod (5) comprises a fixed seat fixedly welded on the side part of the supporting wheel mounting bracket (4), a threaded hole formed in the fixed seat and a threaded rod in threaded connection with the threaded hole; the lower end of the threaded rod is connected with the central shaft, and the upper end of the threaded rod is fixedly provided with a hand wheel (6); the height adjusting screw rod (5) of the scraper knife is adjusted by rotating the hand wheel (6) to drive the relative position of the supporting wheel (3) and the roller (1-2), so that the scraping edge of the scraper knife (1-1) is shoveled into the snow ice layer.

9. A large-scale snow and ice removing mechanism with a more firmly combined scraper knife according to claim 3, characterized in that the inward inclination angle of the scraper blade (1-1) is α degrees which is smaller than 90 degrees.

10. A large scale snow and ice removing working mechanism with a more firmly combined scraper blade according to any one of claims 1-9, characterized in that: the ice-snow-loosening comb (7) is made of hard nylon and is positioned on the front side of the roller (1-2).

Images