Snow Blades and Graders

Abstract

The present disclosure provides a snow removal blade and a motor grader. The snow removal blade includes: a blade body; a shovel blade; and a connection assembly for connecting the shovel blade and the blade body, including a connection component and a reset component. The shovel blade is rotatable through the connection component and the rotation axis is movably connected to the blade body. The shovel blade has a first position for snow removal and a second position for avoiding obstacles relative to the blade body. The reset component is configured to apply a force to the blade to keep the shovel blade in the first position. The motor grader includes the aforementioned snow removal blade. The present disclosure can improve the snow removal effect of the snow removal blade and the motor grader.

Description

Technical Field

[0001] The present disclosure relates to the field of snow removal equipment, and in particular to a snow removal blade and a motor grader. Background Art

[0002] In northern my country, there is a period of snowfall every winter. In order to ensure smooth traffic, road snow removal work must be carried out after each snowfall, so the highway maintenance department is equipped with a certain number of special snow removal machines. However, the price of special snow removal machines is relatively high, and they are generally idle for 7 to 9 months throughout the year. Therefore, most regions have begun to use graders as equipment for winter road snow removal operations, which not only improves the utilization rate of graders, but also saves a lot of costs.

[0003] Due to the large rigidity of the road surface and the shovel blade in contact with the road surface, snow removal operations cause serious wear and tear on the shovel blade and damage to the road surface. The shovel blade needs to be replaced several times during the snow removal process. During the snow removal process, although the grader blade can be adjusted to maintain a small gap between the blade and the road surface to prevent blade wear, this increases the difficulty of the grader operator's work and makes it impossible to completely remove the snow. When using a grader blade to remove snow, the blade will encounter obstacles such as raised manhole covers. The obstacles are in the blind spot of the grader operator's vision. The grader operator cannot make a timely judgment, and the blade cannot automatically identify the obstacles. Therefore, the blade cannot avoid the obstacles in time, causing serious damage to the road and the shovel blade. Replacing a damaged shovel blade is time-consuming and labor-intensive, which not only affects the efficiency of snow removal, but also causes economic losses. Summary of the invention

[0004] The purpose of the present disclosure is to provide a snow removal blade and a motor grader to improve the snow removal effect of the snow removal blade and the motor grader.

[0005] A first aspect of the present disclosure provides a snow removal blade, comprising:

[0006] Blade body;

[0007] Cutting edge; and

[0008] A connecting assembly for connecting the shovel blade and the blade body, comprising a connecting component and a reset component, wherein the shovel blade is rotatable through the connecting component and is movably connected to the blade body via a rotation axis, the shovel blade has a first position for snow removal and a second position for avoiding obstacles relative to the blade body, and the reset component is configured to apply a force to the shovel blade to keep the shovel blade in the first position.

[0009] According to some embodiments of the present disclosure, the blade body includes a first contact surface, the cutting edge includes a second contact surface contactable with the first contact surface, and at least one of the first contact surface and the second contact surface includes a smooth curved surface.

[0010] According to some embodiments of the present disclosure, the first contact surface includes a bottom arc chamfer arranged at the bottom end of the blade body, and the second contact surface includes a back arc groove arranged on the back side of the blade, wherein during the process of switching between the first position, the second position and the first position and the second position, the bottom arc chamfer and the back arc groove remain in contact.

[0011] According to some embodiments of the present disclosure, the blade body includes:

[0012] Shovel body; and

[0013] The first connecting part is fixedly connected to the lower side of the shovel body, the connecting component connects the shovel edge and the first connecting part, and the bottom arc chamfer includes a first arc chamfer arranged at the bottom end of the first connecting part.

[0014] According to some embodiments of the present disclosure, the blade body also includes a second connecting part fixedly connected to the shovel body and the left and right sides of the first connecting part, the connecting part connects the shovel edge and the second connecting part, and the bottom arc chamfer also includes a second arc chamfer arranged at the bottom end of the second connecting part.

[0015] According to some embodiments of the present disclosure, the first contact surface includes the bottom end surface of the shovel body, and the second contact surface includes a third arc chamfer arranged at the top end of the shovel blade. In the first position, the shovel blade is against the bottom end of the shovel body, and the third arc chamfer is in contact with the bottom end surface of the shovel body.

[0016] According to some embodiments of the present disclosure, the reset component includes a spring and / or the connecting component includes a threaded connection structure.

[0017] According to some embodiments of the present disclosure, the threaded connection structure includes:

[0018] a bolt passing through a mounting hole on the blade body and fixedly connected to the blade, the spring being sleeved on the bolt, and a movable gap being provided between the bolt and the mounting hole to allow the bolt to move with the blade when the blade switches between the first position and the second position; and

[0019] A nut is assembled on the bolt, and the spring is arranged between the nut and the blade body.

[0020] According to some embodiments of the present disclosure, a dimension of the mounting hole in a width direction of the blade body is larger than an outer diameter dimension of the bolt.

[0021] According to some embodiments of the present disclosure, the scraper edge includes a plurality of blades arranged side by side along the length direction of the scraper body, and each of the blades is independently connected to the scraper body.

[0022] According to some embodiments of the present disclosure, the width of each blade is 20 to 30 cm.

[0023] According to some embodiments of the present disclosure, each of the blades is connected to the blade body via at least two connecting assemblies.

[0024] According to some embodiments of the present disclosure, the snow removal blade includes a blade shoe disposed at the bottom of the shovel edge, and the blade shoe is configured to contact the ground when the shovel edge is in the first position to protect the ground and the shovel edge.

[0025] According to some embodiments of the present disclosure, the blade shoe is made of high-strength rubber.

[0026] A second aspect of the present disclosure provides a motor grader, comprising the snow removal blade according to the first aspect of the present disclosure.

[0027] In the snow removal shovel provided by the present disclosure, the shovel blade is rotatable through a connecting component and the rotation axis is movably connected to the shovel body. When the snow removal shovel encounters an obstacle, the shovel blade can directly flip around the shovel body, or slide relative to the shovel body, and move from a first position for snow removal to a second position for avoiding obstacles, which can alleviate the impact of obstacles on the snow removal shovel, thereby facilitating the reduction of wear on the shovel blade and the ground during the snow removal operation, reducing the replacement frequency of the shovel blade, and also facilitating the reduction of damage to road facilities such as manhole covers caused by the snow removal shovel. The snow removal shovel provided by the present disclosure can be adapted to a grader, which is conducive to saving the cost of snow removal operations.

[0028] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0030] Figure 1 This is a schematic diagram of the front structure of a snow removal blade according to some embodiments of the present disclosure.

[0031] Figure 2 for Figure 1The back structure diagram of the snow removal blade shown.

[0032] Figure 3 for Figure 1 The snow removal blade shown is a schematic diagram of a side cross-sectional structure in a forward lying state.

[0033] Figure 4 for Figure 1 The snow removal blade shown is a schematic diagram of a side cross-sectional structure in a rearward tilted state.

[0034] Figure 5 This is a schematic structural diagram of the first connecting portion of a snow removal blade according to some embodiments of the present disclosure.

[0035] Figure 6 This is a schematic structural diagram of the second connecting portion of a snow removal blade according to some embodiments of the present disclosure.

[0036] Figure 7 This is a schematic diagram of the structure of the shovel blade and blade shoe of some embodiments of the present disclosure in the assembled state.

[0037] Figures 1 to 7 In the figure, each reference numeral represents:

[0038] 1. Shovel body; 2. First connecting part; 21. First arc chamfer; 22. First mounting hole; 3. Second connecting part; 31. Second mounting hole; 32. Second arc chamfer; 33. Bolt through hole; 4. Connecting assembly; 41. Bolt; 42. Nut; 43. Gasket; 44. Spring; 5. Shovel blade; 51. Third arc chamfer; 52. Back arc groove; 53. Countersunk hole; 6. Blade shoe. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0040] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, these technologies, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0041] In the description of the present disclosure, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0042] In the description of the present disclosure, it is necessary to understand that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0043] In the following description, the so-called "bottom end" refers to the end of the snowplow blade that is close to the ground when the snowplow blade is performing snow removal operations; the so-called "top end" refers to the end of the snowplow blade that is away from the ground when the snowplow blade is performing snow removal operations; the so-called "front side" of the shovel blade refers to the surface of the shovel blade used to clear accumulated snow; the so-called "back side" refers to the surface opposite to the "front side".

[0044] like Figures 1 to 7 As shown, an embodiment of the present disclosure provides a snow removal shovel blade, comprising a shovel blade body, a shovel blade 5 and a connecting assembly 4. The connecting assembly 4 is used to connect the shovel blade 5 and the shovel blade body. The connecting assembly 4 includes a connecting component and a reset component. The shovel blade 5 is rotatably connected to the shovel blade body through the connecting component and the rotation axis is movably connected. The shovel blade 5 has a first position for snow removal and a second position for avoiding obstacles relative to the shovel blade body. The reset component is configured to apply a force to the shovel blade 5 to keep the shovel blade 5 in the first position.

[0045] In the snow removal blade provided in the embodiment of the present disclosure, the shovel blade is rotatable through a connecting component and the rotation axis is movably connected to the shovel body. When the snow removal blade encounters an obstacle, the shovel blade can directly flip around the shovel body or slide relative to the shovel body, moving from a first position for snow removal operation to a second position for avoiding obstacles. This can alleviate the impact of obstacles on the snow removal blade, thereby helping to reduce the wear of the shovel blade and the ground during the snow removal operation, reduce the frequency of replacing the shovel blade, and also help to reduce the damage of the snow removal blade to road facilities such as manhole covers.

[0046] In some embodiments, the blade body includes a first contact surface, the blade edge 5 includes a second contact surface that can contact the first contact surface, and at least one of the first contact surface and the second contact surface includes a smooth curved surface to make the relative movement between the blade edge 5 and the blade body smoother.

[0047] In some embodiments, the first contact surface includes a bottom arc chamfer disposed at the bottom end of the blade body, and the second contact surface includes a back arc groove 52 disposed on the back of the blade 5, wherein the bottom arc chamfer and the back arc groove 52 maintain contact during the switching process between the first position, the second position, and the first position and the second position. Both the first contact surface and the second contact surface have an arc profile, which facilitates the blade 5 to flip relative to the blade body.

[0048] When the snow removal blade encounters an obstacle during the snow removal operation, the blade body and the blade edge 5 form a kinematic pair through the bottom arc chamfer and the back arc groove 52 that maintain contact. There is no need to set a rotating shaft or other structure between the blade body and the blade edge 5. The blade edge 5 can directly flip relative to the blade body with the contact part between the blade edge 5 and the bottom end of the blade body as a fulcrum, or it can slide relative to the blade body. The above arrangement can simplify the structure of the snow removal blade, thereby improving the structural reliability of the snow removal blade.

[0049] In some embodiments, the blade body includes a blade body 1 and a first connecting portion 2. The first connecting portion 2 is fixedly connected to the lower side of the blade body 1, the connecting component connects the blade edge 5 and the first connecting portion 2, and the bottom arc chamfer includes a first arc chamfer 21 set at the bottom end of the first connecting portion 2.

[0050] In some embodiments, the blade body also includes a second connecting part 3 fixedly connected to the shovel body 1 and the left and right sides of the first connecting part 2, the connecting part connects the shovel edge 5 and the second connecting part 3, and the bottom arc chamfer also includes a second arc chamfer 32 arranged at the bottom end of the second connecting part 3.

[0051] In some embodiments, the first contact surface includes the bottom surface of the shovel body 1, and the second contact surface includes a third arc chamfer 51 provided at the top of the shovel blade 5. In the first position, the shovel blade 5 abuts against the bottom end of the shovel body 1, and the third arc chamfer 51 contacts the bottom surface of the shovel body 1, and the bottom surface of the shovel body 1 can limit the shovel blade 5. The third arc chamfer 51 can make the relative movement of the shovel blade 5 and the blade body smoother when the shovel blade 5 encounters an obstacle.

[0052] The first arc chamfer 21 , the second arc chamfer 32 and the third arc chamfer 51 may be circular arc chamfers.

[0053] In some embodiments, the reset component includes a spring 44 , and the force that keeps the cutting edge 5 at the first position is provided by the preload force of the spring 44 .

[0054] In some embodiments, the connection component includes a threaded connection structure.

[0055] In some embodiments, the threaded connection structure includes a bolt 41 and a nut 42. The bolt 41 passes through the mounting hole on the blade body and is fixedly connected to the blade 5. The spring 44 is sleeved on the bolt 41. A movable gap is provided between the bolt 41 and the mounting hole to allow the bolt 41 to move with the blade 5 during the switching process of the blade 5 between the first position and the second position. The nut 42 is assembled on the bolt 41, and the spring 44 is arranged between the nut 42 and the blade body. According to the above connection relationship and position relationship, by adjusting the distance between the nut 42 and the blade body, the deformation of the spring 44 can be adjusted, thereby changing the preload force of the spring 44.

[0056] In some embodiments, the size of the mounting hole in the width direction of the blade body is larger than the outer diameter of the bolt 41 to provide a movable gap for the bolt 41 to follow the movement of the blade 5 when the blade 5 switches between the first position and the second position.

[0057] In some embodiments, the shovel edge 5 includes a plurality of blades arranged side by side along the length direction of the blade body, and each blade is independently connected to the blade body so that each blade of the shovel edge 5 can move independently without interfering with each other.

[0058] When the snow removal blade encounters an obstacle, only the blade at the position corresponding to the obstacle will switch from the first position to the second position to avoid the obstacle. The blades on both sides of the obstacle remain in the first position, and the snow on both sides of the obstacle can be cleared normally, thereby clearing the snow as much as possible.

[0059] When one or some of the blades of the shovel blade 5 are damaged, compared with an integral shovel blade, only the damaged blades need to be replaced without disassembling the shovel blade 5 as a whole, which can reduce replacement time and improve snow removal efficiency.

[0060] The width of each blade of the shovel edge 5 is determined according to the size of obstacles often encountered in snow removal operations, such as the size of manhole covers on the road, and the size of the snow removal blade itself. In some embodiments, the width of each blade is 20 to 30 cm.

[0061] In some embodiments, each blade is connected to the blade body via at least two connection assemblies 4 .

[0062] In some embodiments, the snow removal blade includes a blade shoe 6 disposed at the bottom of the shovel edge 5 , and the blade shoe 6 is configured to contact the ground when the shovel edge 5 is in the first position to protect the ground and the shovel edge 5 .

[0063] In some embodiments, the blade shoe 6 is made of high-strength rubber. The blade shoe 6 made of high-strength rubber has high toughness.

[0064] During snow removal, the blade boot 6 made of high-strength rubber directly contacts the ground. When encountering obstacles, the blade boot 6 can play a buffering role, which is not only conducive to reducing the wear of the ground, the manhole cover and other facilities on the ground, and the snow removal blade, but also conducive to reducing the noise of the snow removal operation and improving the snow removal effect. The blade boot 6 can be replaced at any time according to the wear and tear. Since the blade boot 6 has high toughness, the removal and installation of the blade boot 6 are relatively convenient. The cost of replacing the blade boot 6 is also low.

[0065] Combine the following Figures 1 to 7 The structure and working principle of the snow removal blade of some embodiments of the present disclosure are described in detail.

[0066] like Figures 1 to 4 As shown, the snow removal blade of some embodiments of the present disclosure includes a blade body, a shovel edge 5, a blade shoe 6 and a connecting assembly 4.

[0067] The shovel blade body includes a shovel body 1, a first connecting portion 2 and a second connecting portion 3. The shovel body 1 is C-shaped and is the main component used for pushing snow during snow removal operations. Figure 5 As shown, the first connection part 2 is welded to the lower side of the shovel body 1. A long first mounting hole 22 is provided below the first connection part 2. A first arc chamfer 21 is provided at the bottom end of the first connection part 2. Figure 6 As shown, the second connecting portion 3 is connected to the left and right sides of the shovel body 1. The second connecting portion 3 is provided with a bolt through hole 33 for connecting the second connecting portion 3 and the shovel body 1 by bolts. A second long strip mounting hole 31 is provided below the second connecting portion 3. A second arc chamfer 32 is provided at the bottom end of the second connecting portion 3. The first arc chamfer 21 and the second arc chamfer 32 constitute the first contact surface of the shovel body.

[0068] like Figure 1 and Figure 2As shown, the scraper blade 5 includes a plurality of blades arranged side by side along the length direction of the scraper body, each blade is independently connected to the scraper body, and the width L of each blade is 20 to 30 cm. Figure 7 As shown, the top and bottom ends of the blade 5 are respectively provided with a third arc chamfer 51 and a back arc groove 52. The third arc chamfer 51 and the back arc groove 52 constitute the second contact surface of the blade 5. The upper portion of the blade 5 is also provided with a countersunk hole 53 for connecting with the connecting assembly 4. Figure 7 As shown, the blade shoe 6 is made of high-strength rubber, has a U-shape, and is nested on the outer surface of the bottom end of the scraping edge 5.

[0069] like Figure 3 and Figure 4 As shown, the connecting assembly 4 includes a bolt 41 , a nut 42 , a washer 43 and a spring 44 .

[0070] The bolt 41 passes through the countersunk hole 53 and the first mounting hole 22 in sequence, or passes through the countersunk hole 53 and the second mounting hole 31 in sequence. The dimension of the first mounting hole 22 in the width direction of the first connecting portion 2 is larger than the outer diameter of the bolt 41, and the dimension of the second mounting hole 31 in the width direction of the second connecting portion 3 is larger than the outer diameter of the bolt 41. Each blade of the shovel blade 5 is connected to the first connecting portion 2 or the second connecting portion 3 by at least two bolts 41 to prevent the blade from rotating along the axis of the bolt 41 when only one bolt 41 is connected to one blade of the shovel blade 5. During the snow removal process, as the shovel blade 5 flips or slides, the bolt 41 can move up and down along the movable gap between the bolt 41 and the first mounting hole 22 or the second mounting hole 31.

[0071] A washer 43 is disposed at each end of the spring 44. The spring 44 and the washer 43 are sequentially mounted on the bolt 41. One end of the spring 44 abuts against the first connecting portion 2 or the second connecting portion 3 through one of the washers 43. The nut 42 is assembled on the end of the bolt 41 that is not connected to the countersunk hole 53 of the blade 5.

[0072] According to the amount of snow and ice on the ground, the compression of the spring 44 can be adjusted by adjusting the distance between the nut 42 and the first connecting part 2 or the second connecting part 3, and a suitable preload force can be applied to the spring 44. If the preload force is too large, it will be difficult for the shovel blade 5 to move to the second position to avoid obstacles; if the preload force is too small, the preload force may be smaller than the resistance of the snow on the shovel blade 5, causing the shovel blade 5 to deviate from the first position and fail to remove snow normally.

[0073] like Figure 3 and Figure 4 As shown, during the snow removal process, when the snow removal blade encounters an obstacle, the shovel blade 5 will be subjected to a horizontal backward resistance F from the obstacle. x When the resistance F xWhen the resistance F is less than or equal to the preload force of the spring 44, the obstacle will be directly cleared by the shovel blade 5 together with the snow; x When the preload force is greater than that of the spring 44, the shovel blade 5 will flip to the second position with the bottom end of the first connecting part 2 and the bottom end of the second connecting part 3 in contact with the shovel blade 5 as a fulcrum to avoid obstacles. After crossing the obstacle, the shovel blade 5 returns to the first position under the action of the elastic force of the spring 44.

[0074] When the shovel blade 5 moves from the first position to the second position, the bolt 41 is pulled forward and the spring 44 is further compressed. When the shovel blade 5 moves to the second position, the spring 44 is fully compressed and the shovel blade 5 cannot move backward any further, thus achieving the end position limit. After the shovel blade 5 passes over the obstacle, the bolt 41 is pulled back under the elastic force of the spring 44, and the shovel blade 5 returns to the first position, restoring the normal snow removal state.

[0075] During the snow removal process, the posture of the snow removal blade can be adjusted according to the amount of snow and ice conditions on the ground so that the snow removal blade can reach the best snow removal state.

[0076] like Figure 3 As shown in FIG. 1 , when the contact point between the snowplow blade and the ground is located at the vertical projection point O of the aforementioned fulcrum or behind point O, the snowplow blade is in a forward-lying state. When encountering an obstacle, the snowplow blade flips backwards, and at this time the snowplow blade is only subject to the horizontal backward resistance F from the obstacle. x , will not be affected by the impact force of the ground. x Under the action of the force, the blade 5 turns backward around the aforementioned fulcrum until it passes over the obstacle.

[0077] like Figure 4 As shown in the figure, when the contact point between the snowplow blade and the ground is in front of point O, the snowplow blade is in a backward state. When encountering an obstacle, the snowplow blade flips backward, and at this time the snowplow blade will be subject to the horizontal backward resistance F from the obstacle. x and the vertical upward impact force F from the ground y At resistance F x Under the action of the impact force F y Under the action of the shovel blade 5, the shovel blade 5 slides upward under the guidance of the arc-shaped groove 52 on the back, which can alleviate the impact of the ground on the snow removal blade when the shovel blade 5 passes above the point O.

[0078] like Figure 3 and Figure 4 As shown, the height h of the obstacle that the blade 5 can cross can be up to 10 cm.

[0079] Some embodiments of the present disclosure also provide a grader, including the aforementioned snow removal blade. The structural form of the blade body of the aforementioned snow removal blade is the same as the structural form of the blade body of the grader for conventional operations such as earthwork construction operations. When the grader is used for snow removal operations, it has the corresponding advantages of the aforementioned snow removal blade, and can save costs compared to using dedicated snow removal equipment to perform snow removal operations. When the grader needs to perform earthwork construction operations, it only needs to replace the shovel blade 5 of the snow removal blade with a shovel blade for earthwork construction operations without the need to disassemble the snow removal blade as a whole, which is beneficial to saving manpower. By disassembling and assembling the shovel blade, the grader can be used to perform a variety of operations, which is beneficial to improving the utilization rate of the grader and expanding the scope of application of the grader.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution for protection requested by the present disclosure.

Claims

1. A snow removal blade, characterized in that: include: Blade body; Shovel blade (5); and a connecting assembly (4) for connecting the shovel blade (5) and the shovel blade body, comprising a connecting component and a resetting component, the shovel blade (5) being rotatably connected to the shovel blade body via the connecting component and having a rotation axis that is movably connected, the shovel blade (5) having a first position for snow removal and a second position for avoiding obstacles relative to the shovel blade body, the resetting component being configured to apply a force to the shovel blade (5) so as to keep the shovel blade (5) in the first position; The reset component comprises a spring (44) and / or the connection component comprises a threaded connection structure, the threaded connection structure comprises a bolt (41) and a nut (42), the bolt (41) passes through a mounting hole on the blade body and is fixedly connected to the blade (5), the spring (44) is sleeved on the bolt (41), a movable gap is provided between the bolt (41) and the mounting hole to allow the bolt (41) to follow the movement of the blade (5) when the blade (5) switches between the first position and the second position, the nut (42) is assembled on the bolt (41), the spring (44) is arranged between the nut (42) and the blade body, and the size of the mounting hole in the width direction of the blade body is larger than the outer diameter of the bolt (41); The scraper edge (5) comprises a plurality of blades arranged side by side along the length direction of the scraper body, each of the blades being independently connected to the scraper body, and each of the blades being connected to the scraper body via at least two connecting assemblies (4).

2. The snow removal blade according to claim 1, characterized in that: The blade body comprises a first contact surface, the blade edge (5) comprises a second contact surface contactable with the first contact surface, and at least one of the first contact surface and the second contact surface comprises a smooth curved surface.

3. The snow removal blade according to claim 2, characterized in that: The first contact surface comprises a bottom arc chamfer arranged at the bottom end of the blade body, and the second contact surface comprises a back arc groove (52) arranged on the back side of the blade (5), wherein during the switching process between the first position, the second position and the first position and the second position, the bottom arc chamfer and the back arc groove (52) maintain contact.

4. The snow removal blade according to claim 3, characterized in that: The blade body comprises: Shovel body (1); and The first connecting portion (2) is fixedly connected to the lower side of the shovel body (1), the connecting component connects the shovel blade (5) and the first connecting portion (2), and the bottom arc chamfer comprises a first arc chamfer (21) arranged at the bottom end of the first connecting portion (2).

5. The snow removal blade according to claim 4, characterized in that: The blade body further comprises a second connecting portion (3) fixedly connected to the shovel body (1) and the left and right sides of the first connecting portion (2), the connecting component connects the shovel edge (5) and the second connecting portion (3), and the bottom arc chamfer further comprises a second arc chamfer (32) arranged at the bottom end of the second connecting portion (3).

6. The snow removal blade according to claim 4, characterized in that: The first contact surface comprises the bottom surface of the shovel body (1), and the second contact surface comprises a third arc chamfer (51) arranged at the top end of the shovel blade (5). In the first position, the shovel blade (5) abuts against the bottom end of the shovel body (1), and the third arc chamfer (51) contacts the bottom surface of the shovel body (1).

7. The snow removal blade according to any one of claims 1 to 6, characterized in that: The width of each blade is 20-30 cm.

8. The snow removal blade according to any one of claims 1 to 6, characterized in that: It comprises a blade shoe (6) arranged at the bottom of the shovel blade (5), and the blade shoe (6) is configured to contact the ground when the shovel blade (5) is in the first position to protect the ground and the shovel blade (5).

9. The snow removal blade according to claim 8, characterized in that: The blade shoe (6) is made of high-strength rubber.

10. A motor grader, characterized in that: It comprises the snow removal blade according to any one of claims 1 to 9.

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