Snow blade assembly and snow thrower

Abstract

This invention belongs to the field of snowplows, specifically relating to a snowplow assembly and a snowplow, comprising: a support shaft; a snow-throwing paddle, installed in the middle of the support shaft and configured to rotate synchronously with the support shaft; a left snowplow assembly and a right snowplow assembly, respectively positioned on either side of the snow-throwing paddle, and symmetrical about a plane perpendicular to the axis of the support shaft; the left snowplow assembly includes a snow-scraping blade, which is spirally wound around the support shaft along its axial direction; the snow-scraping blade is composed of at least two separate spiral blades joined together, each spiral blade having a connecting portion at its end away from the snow-throwing paddle; the connecting portion is connected to the support shaft; wherein the spiral blade closest to the snow-throwing paddle is connected to the snow-throwing paddle. This invention improves the structural strength of the snowplow assembly.

Description

Technical Field

[0001] This invention belongs to the field of snowplows, specifically relating to a snow-rolling blade assembly and a snowplow. Background Technology

[0002] When a snowplow is working, it typically first gathers the snow on the road surface using snow scrapers, and then uses snow-throwing paddles to scatter the gathered snow to areas away from the road surface. Existing snowplows suffer from the following main defects: 1. Many snow-rolling blades on the market are assembled in a fragmented manner, resulting in poor snow gathering and concentration; 2. Snow-rolling blades are prone to bending and deformation under snow-throwing pressure, leading to poor snow-throwing effect; 3. The snow-throwing blade's shoveling and snow-throwing parts are made of rubber, which easily deforms under snow-throwing pressure, resulting in low snow-throwing efficiency; 4. The area ratio of the snow-throwing and shoveling parts of the snow-rolling blade is unsuitable, resulting in a large snow-throwing load and limited snow-throwing distance. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a snow roll blade assembly and a snow sweeper with reliable structural strength.

[0004] To achieve the above and other related objectives, the present invention provides a snow rolling knife assembly, comprising:

[0005] Support shaft;

[0006] A snow paddle is installed in the middle of the support shaft and is configured to rotate synchronously with the support shaft;

[0007] The left and right snow scraper assemblies are located on opposite sides of the snow paddle and are symmetrical about a plane perpendicular to the axis of the support shaft.

[0008] The left snow scraper assembly includes a snow scraper blade that is spirally wound around the support shaft along its axial direction.

[0009] The snow scraper is composed of at least two separate spiral blades joined together, and each spiral blade has a connecting part at the end away from the snow paddle; the connecting part is connected to the support shaft; wherein the spiral blade closest to the snow paddle is connected to the snow paddle.

[0010] In an optional embodiment of the present invention, at least two snow scrapers are provided, and each snow scraper is evenly spaced along the circumference of the support shaft. The spiral blades of each snow scraper located in the same section in the axial direction of the support shaft share the same connecting portion.

[0011] In an optional embodiment of the present invention, the spiral blade and the connecting portion are an integral structure.

[0012] In an optional embodiment of the present invention, a recess is formed on a connecting portion closest to the end of the support shaft, the recess being located around the support shaft and recessed in a direction away from the end of the support shaft.

[0013] In an optional embodiment of the present invention, in the projection of all the spiral blades on the same connecting part onto the axis of the support shaft, the sum of the central arc angles corresponding to the outermost arc contours of each spiral blade is greater than or equal to 100° and less than or equal to 360°.

[0014] In an optional embodiment of the present invention, the area on the connecting portion closest to the end of the support shaft that is connected to the spiral blade is a planar structure perpendicular to the axis of the support shaft, while the areas on the remaining connecting portions that are connected to the spiral blade are twisted to conform to the shape of the spiral blade.

[0015] In an optional embodiment of the present invention, the snowplow includes at least two blades, the blades being radially extended along the support shaft, the central region of the blades on the front side in the rotation direction being recessed towards the rear side in the rotation direction, and the left and right ends of the blades on the front side in the rotation direction being warped towards the front side in the rotation direction.

[0016] In an optional embodiment of the present invention, a through hole is provided on the blade near the support shaft.

[0017] In an optional embodiment of the present invention, a rubber plate is provided on the blade, the rubber plate is detachably connected to the blade, and the rubber plate is arranged to protrude radially from the edge of the blade along the support shaft.

[0018] In an optional embodiment of the present invention, each blade is an integral structure, and a shaft hole is provided between each blade for the support shaft to pass through. Radial holes are provided on the sidewall of the shaft hole and on the support shaft, and positioning bolts are provided in the radial holes.

[0019] In an optional embodiment of the present invention, a flange is provided on the edge of the blade on the side radially away from the support shaft, and the flange protrudes rearward in the direction of blade rotation.

[0020] In an optional embodiment of the present invention, the ratio between the axial length of the snowplow and the axial length of the left snow scraper assembly is greater than or equal to 0.1 and less than or equal to 2.5.

[0021] In an optional embodiment of the present invention, the ratio between the maximum diameter of the projection of the snow roll cutter assembly in the axial direction of the support shaft and the length of the support shaft is greater than or equal to 0.1 and less than or equal to 1.

[0022] In an optional embodiment of the present invention, the outer edge of the snow scraper is provided with a serrated cut or a bent edge.

[0023] To achieve the above and other related objectives, the present invention also provides a snowplow, comprising:

[0024] The host computer is equipped with a drive device;

[0025] A snow rolling blade assembly is mounted on the front end of the main unit, and the snow rolling blade assembly includes:

[0026] The support shaft is connected to the drive device for transmission.

[0027] A snow paddle is installed in the middle of the support shaft and is configured to rotate synchronously with the support shaft;

[0028] The left and right snow scraper assemblies are respectively placed on both sides of the snow paddle, and the two are symmetrical about a plane perpendicular to the axis of the support shaft about the center of the support shaft;

[0029] The left snow scraper assembly includes a snow scraper blade that is spirally wound around the support shaft along its axial direction.

[0030] The snow scraper is composed of at least two separate spiral blades joined together. Each spiral blade has a connecting part at the end away from the snow paddle. The connecting part is connected to the support shaft. The end of the spiral blade closest to the snow paddle away from the connecting part is connected to the snow paddle.

[0031] The technical advantages of this invention are as follows:

[0032] Based on the traditional snow scraper, this invention sets the snow scraper into a multi-segment structure and sets a connecting part at the end of each segment. The innermost blade is fixed to the snow paddle, so that both ends of each segment are effectively fixed, avoiding bending and deformation problems caused by long spans and improving the structural strength of the snow scraper assembly.

[0033] In this invention, two spiral blades located in the same axial position and the same connecting part form an integral structure. The two spiral blades and one connecting part constitute a single part, realizing the modular design of the snow scraper, simplifying the assembly structure, improving assembly efficiency, and facilitating the maintenance of the snow scraper.

[0034] The snow-throwing paddle structure of the present invention can make the throwing path more concentrated and improve the snow-throwing efficiency; when too much snow accumulates in the middle of the support shaft, some of the snow on the front side of the paddle rotation direction can overflow to the rear side of the paddle rotation direction through the through hole, thus avoiding overloading of the snow-throwing paddle. Attached Figure Description

[0035] Figure 1 This is a perspective view of the snow rolling blade assembly provided in an embodiment of the present invention;

[0036] Figure 2 This is a front view of the snow rolling blade assembly provided in an embodiment of the present invention;

[0037] Figure 3 This is a side view of the snow rolling blade assembly provided in an embodiment of the present invention;

[0038] Figure 4 This is an exploded view of the snow rolling blade assembly provided in an embodiment of the present invention;

[0039] Figure 5 This is a perspective view of the outer spiral plate and the connecting portion provided in an embodiment of the present invention;

[0040] Figure 6 This is a perspective view of the outer spiral plate and connecting portion provided in an embodiment of the present invention;

[0041] Figure 7 This is a side view of the outer spiral plate and the connecting portion provided in an embodiment of the present invention;

[0042] Figure 8 This is a perspective view of the inner spiral plate and the connecting portion provided in an embodiment of the present invention;

[0043] Figure 9 This is a perspective view of the inner spiral plate and connecting portion provided in an embodiment of the present invention;

[0044] Figure 10 This is a side view of the inner spiral plate and the connecting portion provided in an embodiment of the present invention;

[0045] Figure 11 This is a perspective view of a snow paddle provided in an embodiment of the present invention;

[0046] Figure 12 This is an end view of the snow paddle provided in an embodiment of the present invention;

[0047] Figure 13 This is a front view of the snow rolling blade assembly provided in an embodiment of the present invention;

[0048] Figure 14 This is a perspective view of a snowplow provided in an embodiment of the present invention. Detailed Implementation

[0049] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0050] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0051] Please see Figures 1 to 14 As shown below, the technical solution of the present invention will be described in detail with reference to a walk-behind snow sweeper. It can be understood that the present invention is an improvement on the blade part of the snow sweeper. Therefore, there are no special requirements for the walking method of the snow sweeper itself. The snow rolling blade assembly of the present invention is not only applicable to walk-behind snow sweepers, but can also be applied to ride-on snow sweepers, handheld snow sweepers, etc.

[0052] Please see Figure 14 As shown, a walk-behind snowplow includes a main unit 100 and a snow-rolling blade assembly. The main unit 100 is equipped with a drive device. It is understood that the drive device is used to drive the snow-rolling blade assembly to rotate. The walk-behind snowplow should also include a walking device and a control device. In the walk-behind snowplow of this embodiment, the control device can be, for example, installed on the handle of the snowplow. The walking device and the snow-rolling blade assembly can, for example, share the same power source, or they can be equipped with independent power sources. The power source can be, for example, an internal combustion engine or an electric motor. When using an electric motor, the snowplow should also be equipped with a necessary power module, such as a battery pack.

[0053] Please see Figures 1 to 13 As shown, the snow-rolling blade assembly is installed at the front end of the main unit 100. The snow-rolling blade assembly includes a support shaft 10, a snow-throwing paddle 20, a left snow-scraping blade assembly 30, and a right snow-scraping blade assembly 40. In a specific embodiment, the front end of the main unit 100 may be provided with a cover for accommodating the snow-rolling blade assembly. The front end of the cover has an opening for swallowing snow. The cover surrounds the rear and top of the snow-rolling blade assembly to prevent snow from splashing. A snow-throwing channel is provided at the upper end of the cover to guide the direction of snow throwing.

[0054] Please see Figures 1 to 13As shown, the support shaft 10 is connected to the drive device in a transmission connection. It can be understood that the specific connection method of the transmission connection can be selected from the prior art, such as gear transmission, belt transmission, etc.

[0055] Please see Figure 1-4 As shown in Figures 11 and 12, the snowplow 20 is installed in the middle of the support shaft 10 and is configured to rotate synchronously with the support shaft 10. The left snow scraper assembly 30 and the right snow scraper assembly 40 are placed on both sides of the snowplow, and the two are symmetrical about a plane perpendicular to the axis of the support shaft 10. In a specific embodiment, in order to keep the two ends of the snow scraper assembly balanced, the plane can be, for example, the plane at the center of the support shaft 10. During the rotation of the support shaft 10, the left snow scraper assembly 30 and the right snow scraper assembly 40 gather the snow towards the middle of the support shaft 10, and the snowplow 20 is used to throw the gathered snow upwards.

[0056] Please see Figure 1 As shown, in this embodiment, the structures of the right snow scraper assembly 40 and the left snow scraper assembly 30 are completely symmetrical. Therefore, the following content only describes the structure of the left snow scraper in detail.

[0057] Please see Figure 1-10 As shown, the left snow scraper assembly 30 includes a snow scraper 31, which spirals around the support shaft 10 in an axial shape. The snow scraper 31 is composed of at least two separate spiral blades 311 joined together. Each spiral blade 311 has a connecting portion 32 at its end away from the snow paddle 20. The connecting portion 32 is connected to the support shaft 10. The spiral blade 311 closest to the snow paddle 20 is connected to the snow paddle 20. Specifically, the part of the spiral blade 311 connected to the snow paddle 20 is at the end away from the connecting portion 32. It can be understood that, based on the traditional snow scraper, this invention sets the snow scraper 31 as a multi-segment structure and provides a connecting portion 32 at the end of each blade segment. The innermost blade is fixed to the snow paddle 20, so that both ends of each blade segment are effectively fixed, avoiding bending deformation caused by long spans and improving the structural strength of the snow scraper assembly.

[0058] Please see Figure 1 , 2As shown, in this embodiment, there are two snow scraper blades 31. Each snow scraper blade 31 is evenly spaced along the circumference of the support shaft 10. The spiral blades 311 of each snow scraper blade 31 located in the same section along the axial direction of the support shaft 10 share the same connecting portion 32. It should be noted that in this embodiment, each snow scraper blade 31 is composed of two spiral blades 311 connected sequentially; that is, the left snow scraper blade assembly 30 in this embodiment includes a total of four spiral blades 311. It is understood that the snow scraper blades 31 of the present invention are not limited to only two; for example, three or more may be provided.

[0059] Please see Figure 4 As shown, in a specific embodiment, the spiral blade 311 and the connecting part 32 are an integral structure. It can be understood that in this embodiment, two spiral blades 311 located in the same axial position and the same connecting part 32 form an integral structure. The two spiral blades 311 and one connecting part 32 form a single part, realizing the modular design of the snow scraper 31, simplifying the assembly structure, improving assembly efficiency, and facilitating the maintenance of the snow scraper 31.

[0060] Please see Figure 5-7 As shown, a recessed portion 321 is formed on the connecting portion 32 closest to the end of the support shaft 10. The recessed portion 321 is located around the support shaft 10 and is recessed in a direction away from the end of the support shaft 10. It can be understood that the recessed portion 321 can avoid the connecting structure at the end of the support shaft 10, so that the snow scraper 31 is as close as possible to both ends of the cover and avoids cleaning dead corners.

[0061] Please see Figure 7 , 10 As shown, in the projection of all the spiral blades 311 on the same connecting part 32 onto the axis of the support shaft 10, the sum of the central arc angles corresponding to the outermost arc contours of each spiral blade 311 is greater than or equal to 100° and less than or equal to 360°, which is reflected in... Figure 7 In the middle, that is, 100°≤α1+α2≤360°; similarly, it is reflected in Figure 10 In this case, 100°≤β1+β2≤360°. The combination of the two blades described above has an arc center angle exceeding 360°, thereby achieving continuous cutting and conveying of snow. In this embodiment, the thickness t of the snow scraper blade 31 satisfies 0.8mm≤t≤5mm.

[0062] Please see Figure 5-10As shown, in one specific embodiment, the area on the connecting portion 32 closest to the end of the support shaft 10 that connects to the spiral blade 311 is a planar structure perpendicular to the axis of the support shaft 10. The areas on the remaining connecting portions 32 that connect to the spiral blade 311 are twisted to conform to the shape of the spiral blade 311, ensuring a smooth tool surface and preventing snow accumulation on the tool. It is understood that in this embodiment, the area on the connecting portion 32 closest to the end of the support shaft 10 that connects to the spiral blade 311 is set as a plane to ensure that the connecting portion 32 fits the inner wall of the casing, reducing the gap between them. In other embodiments, this area may not be planar.

[0063] Please see Figure 1-4 As shown in Figures 11 and 12, the snow-throwing paddle 20 includes two blades 21, which are radially extended along the support shaft 10. The central region of the front side of the blade 21 in the rotation direction is recessed towards the rear side in the rotation direction, and the left and right ends of the front side of the blade 21 in the rotation direction are warped towards the front side in the rotation direction. It can be understood that the rotation direction mentioned in this invention refers to the rotation direction of the snow-rolling blade assembly during the actual operation of the snow sweeper. The snow-throwing paddle 20 structure of the above form can make the throwing path more concentrated and improve the snow-throwing efficiency.

[0064] Please see Figure 11 As shown, the blade 21 is provided with a through hole 23 in the area near the support shaft 10. It can be understood that when too much snow accumulates in the middle of the support shaft 10, some of the snow on the front side of the blade 21 in the direction of rotation can overflow to the rear side of the blade 21 in the direction of rotation through the through hole 23, thereby avoiding overload of the blade 21.

[0065] Please see Figure 2 As shown, in one embodiment, a rubber plate 22 is provided on the blade 21. The rubber plate 22 is detachably connected to the blade 21. The rubber plate 22 protrudes radially from the edge of the blade 21 along the support shaft 10. In this embodiment, the length H of the rubber plate 22 protruding from the edge of the blade 21 satisfies: 3mm≤H≤30mm. Preferably, H=15mm. Sufficient wear allowance is left between the rubber plate 22 and the blade 21 to ensure the service life of the blade 21.

[0066] Please see Figure 11 As shown, in one embodiment, the two blades 21 are an integral structure, and a shaft hole for the support shaft 10 to pass through is provided between each blade 21. Radial holes are provided on the sidewall of the shaft hole and on the support shaft 10, and positioning bolts 11 are provided in the radial holes. In this embodiment, the snow paddle can be integrally stamped, for example, resulting in a simple structure and easy assembly.

[0067] Please see Figure 11 As shown, the blade 21 has a flange 24 on the edge of the side of the support shaft 10 away from the support shaft 10 in the radial direction. The flange 24 protrudes rearward in the rotation direction of the blade 21. It can be understood that the flange 24 can strengthen the stress area of ​​the blade 21 and prevent the blade 21 from deforming.

[0068] Please see Figure 3 , 13 As shown, in one specific embodiment, the ratio between the axial length of the snowplow 20 and the axial length of the left snow scraper assembly 30 is greater than or equal to 0.1 and less than or equal to 2.5, which is reflected in... Figure 13 In this context, 0.1 ≤ L2 / L1 ≤ 2.5; the ratio between the maximum diameter of the projection of the snowplow assembly onto the axis of the support shaft 10 and the length of the support shaft 10 is greater than or equal to 0.1 and less than or equal to 1, as reflected in... Figure 3 and Figure 13 In this embodiment, the dimensional ratios are 0.1 ≤ φ / L0 ≤ 1. This ensures that the working efficiency of the snow scraper 31 and the snow fluffer 20 are matched, maintaining a near balance between the amount of snow scraped and the amount of snow fluffed, thus preventing the snow fluffer 20 from being overloaded or unloaded. The outer edge of the snow scraper 31 may have a serrated cut or a bent edge, or a concave-convex structure may be provided on the snow scraper 31 to further improve its structural strength.

[0069] In summary, based on the traditional snow scraper 31, the present invention sets the snow scraper 31 as a multi-segment structure and provides a connecting part 32 at the end of each segment blade. The innermost blade is fixed to the snow paddle 20, so that both ends of each segment blade are effectively fixed, avoiding the bending deformation problem caused by long span, and improving the structural strength of the snow scraper assembly.

[0070] In this invention, two spiral blades 311 located in the same axial position and the same connecting part 32 form an integral structure. The two spiral blades 311 and one connecting part 32 form a single part, realizing the modular design of the snow scraper 31, simplifying the assembly structure, improving assembly efficiency, and facilitating the maintenance of the snow scraper 31.

[0071] The snow-throwing paddle 20 structure of the present invention can make the throwing path more concentrated and improve the snow-throwing efficiency; when too much snow accumulates in the middle of the support shaft 10, part of the snow on the front side of the rotation direction of the paddle blade 21 can overflow to the rear side of the rotation direction of the paddle blade 21 through the through hole 23, thus avoiding overload of the snow-throwing paddle 20.

[0072] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

[0073] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the invention. However, those skilled in the art will recognize that embodiments of the invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

[0074] Throughout this specification, the terms "an embodiment," "embodiment," or "specific embodiment" refer to a particular feature, structure, or characteristic described in connection with an embodiment that is included in at least one embodiment of the invention, but not necessarily in all embodiments. Therefore, the various representations of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout the specification do not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic of any specific embodiment of the invention can be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the invention described and illustrated herein may be based on the teachings herein and will be considered part of the spirit and scope of the invention.

[0075] It should also be understood that one or more of the elements shown in the figures may be implemented in a more separate or more integrated manner, or may even be removed because they are inoperable in certain circumstances or provided because they may be useful for a particular application.

[0076] Furthermore, unless otherwise expressly stated, any arrows in the accompanying drawings should be considered illustrative only and not limiting. Additionally, unless otherwise stated, the term "or" as used herein is generally intended to mean "and / or". Where a term is anticipated to provide a separation or combination capability that is unclear, a combination of components or steps will also be considered as indicated.

[0077] As used herein and throughout the claims below, unless otherwise specified, “a” and “the” include the plural references. Similarly, as used herein and throughout the claims below, unless otherwise specified, “in” means “in” and “on”.

[0078] The above description of the embodiments shown in this invention (including the content set forth in the abstract of the specification) is not intended to be an exhaustive enumeration or to limit the invention to the precise forms disclosed herein. Although specific embodiments and examples of the invention have been described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the invention, as will be recognized and understood by those skilled in the art. As indicated, these modifications can be made to the invention in accordance with the above description of the embodiments described herein, and such modifications will be within the spirit and scope of the invention.

[0079] This document has generally described the systems and methods in detail to aid in understanding the invention. Furthermore, various specific details have been set forth to provide a general understanding of embodiments of the invention. However, those skilled in the art will recognize that embodiments of the invention can be practiced without one or more specific details, or using other means, systems, accessories, methods, components, materials, parts, etc. In other instances, well-known structures, materials, and / or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

[0080] Therefore, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the foregoing disclosure, and it should be understood that in some cases, certain features of the invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terminology used in the following claims and / or the specific embodiments disclosed as the best mode for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the invention will be defined only by the appended claims.

Claims

1. A snowplow assembly, characterized in that, include: Support shaft; A snow paddle is installed in the middle of the support shaft and is configured to rotate synchronously with the support shaft; The left and right snow scraper assemblies are located on opposite sides of the snow paddle and are symmetrical about a plane perpendicular to the axis of the support shaft. The left snow scraper assembly includes a snow scraper blade that is spirally wound around the support shaft along its axial direction. The snow scraper is composed of at least two separate spiral blades joined together, and each spiral blade has a connecting part at the end away from the snow paddle; the connecting part is connected to the support shaft; wherein the spiral blade closest to the snow paddle is connected to the snow paddle.

2. The snow rolling blade assembly according to claim 1, characterized in that, The snow scraper is provided in at least two parts, and each snow scraper is evenly spaced along the circumference of the support shaft. Each snow scraper is located in the same section of the support shaft and each of the spiral blades shares the same connecting part.

3. The snow rolling blade assembly according to claim 1, characterized in that, The spiral blade and the connecting part are an integral structure.

4. The snow rolling blade assembly according to claim 1, characterized in that, A recess is formed on one of the connecting portions closest to the end of the support shaft. The recess is located around the support shaft and is recessed in a direction away from the end of the support shaft.

5. The snow rolling blade assembly according to claim 2, characterized in that, In the projection of all the spiral blades on the same connecting part onto the axis of the support shaft, the sum of the central arc angles corresponding to the outermost arc contours of each spiral blade is greater than or equal to 100° and less than or equal to 360°.

6. The snow rolling blade assembly according to claim 1, characterized in that, The area on the connecting part closest to the end of the support shaft that is connected to the spiral blade is a planar structure perpendicular to the axis of the support shaft, while the areas on the other connecting parts that are connected to the spiral blade are twisted to conform to the shape of the spiral blade.

7. The snow rolling blade assembly according to claim 1, characterized in that, The snowplow includes at least two blades, which are radially extended along the support shaft. The central region of the blade in the front direction of rotation is recessed towards the rear direction of rotation, and the left and right ends of the blade in the front direction of rotation are warped towards the front direction of rotation.

8. The snow rolling blade assembly according to claim 7, characterized in that, The blade has a through hole in the area near the support shaft.

9. The snow rolling blade assembly according to claim 7, characterized in that, The blade is provided with a rubber plate, which is detachably connected to the blade. The rubber plate protrudes radially from the edge of the blade along the support shaft.

10. The snow rolling blade assembly according to claim 7, characterized in that, Each blade is an integral structure, and a shaft hole is provided between each blade for the support shaft to pass through. Radial holes are provided on the side wall of the shaft hole and on the support shaft, and positioning bolts are provided in the radial holes.

11. The snow rolling blade assembly according to claim 7, characterized in that, The blade has a flange on its edge along the radial side away from the support shaft, and the flange protrudes rearward in the direction of blade rotation.

12. The snow rolling blade assembly according to claim 1, characterized in that, The ratio between the axial length of the snowplow and the axial length of the left snow scraper assembly is greater than or equal to 0.1 and less than or equal to 2.

5.

13. The snow rolling blade assembly according to claim 1, characterized in that, The ratio between the maximum diameter of the projection of the snowplow assembly onto the axis of the support shaft and the length of the support shaft is greater than or equal to 0.1 and less than or equal to 1.

14. The snow rolling blade assembly according to claim 1, characterized in that, The outer edge of the snow scraper is provided with a serrated cut or a bent edge.

15. A snowplow, characterized in that, include: The host computer is equipped with a drive device; A snow rolling blade assembly is mounted on the front end of the main unit, and the snow rolling blade assembly includes: The support shaft is connected to the drive device for transmission. A snow paddle is installed in the middle of the support shaft and is configured to rotate synchronously with the support shaft; The left and right snow scraper assemblies are respectively placed on both sides of the snow paddle, and the two are symmetrical about a plane perpendicular to the axis of the support shaft about the center of the support shaft; The left snow scraper assembly includes a snow scraper blade that is spirally wound around the support shaft along its axial direction. The snow scraper is composed of at least two separate spiral blades joined together. Each spiral blade has a connecting part at the end away from the snow paddle. The connecting part is connected to the support shaft. The end of the spiral blade closest to the snow paddle away from the connecting part is connected to the snow paddle.

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