A cutter box and a cutting device

Abstract

The utility model discloses a knife box of installation broken knife, including installation box body, the installation box body includes side wall one, side wall two, side wall three and side wall four, the side of side wall one, side wall two, side wall three and side wall four are connected in proper order, and the side wall of side wall one, side wall two, side wall three and side wall four surrounds and forms installation cavity. Through the side wall of side wall one, side wall two, side wall three and side wall four are connected in proper order, the strength of installation box body is improved, avoids the loose condition of installation box body in the process of rotary tillage, can surround the all -round of broken knife lower end, will the broken knife steady place in installation cavity, improves the connection strength with broken knife and knife shaft, avoids the situation that broken knife appears to fall off or damage, and rotary tillage of broken device is favorable.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery, and specifically relates to a blade box and a crushing device for installing crushing blades. Background Technology

[0002] The crushing device of a rotary tiller is a key component in agricultural machinery used to crush materials such as soil and straw. Its crushing blade is the main working part, so the durability of the crushing blade is the key to improving rotary tillage efficiency and reducing operating costs.

[0003] In existing crushing devices, the crusher blades are generally connected to the cutter shaft via a cutter disc or cutter box. The connection strength between the cutter disc and the crusher blades and cutter shaft is low. After prolonged use, the cutter disc is prone to deformation, which can lead to the crusher blades falling off or being damaged. In addition, the existing cutter box is assembled from multiple parts. During long-term rotary tillage, the cutter box is prone to loosening. Once loosening occurs, it can also cause the crusher blades to fall off or be damaged, which is detrimental to rotary tillage.

[0004] To address this issue, our company developed a blade box and crushing device for installing crushing blades, which improves the rotary tillage efficiency of the crushing device. Utility Model Content

[0005] To address the aforementioned problems, this utility model designs a blade box for mounting a crusher blade, comprising a mounting box body, wherein the mounting box body includes a first side wall, a second side wall, a third side wall, and a fourth side wall, the sides of which are connected sequentially, and which surround to form a mounting cavity.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: by connecting the side walls one, two, three and four in sequence, the strength of the mounting box is improved, and the loosening of the mounting box during rotary tillage is avoided. It can surround the lower end of the crusher blade and stably place the crusher blade in the mounting cavity, which improves the connection strength with the crusher blade and the blade shaft, prevents the crusher blade from falling off or being damaged, and facilitates the rotary tillage of the crushing device.

[0007] Furthermore, sidewall one, sidewall two, sidewall three, and sidewall four are integrally formed;

[0008] Preferably, sidewall one, sidewall two, sidewall three and sidewall four are plate-shaped; more preferably, a plurality of retaining blocks are provided in the mounting cavity, and the retaining blocks are connected to sidewall one, sidewall two, sidewall three or sidewall four.

[0009] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by integrally molding sidewall 1, sidewall 2, sidewall 3, and sidewall 4, the connection strength of sidewall 1, sidewall 2, sidewall 3, and sidewall 4 can be improved, thereby improving the strength of the mounting box; by making sidewall 1, sidewall 2, sidewall 3, and sidewall 4 plate-shaped, they can fit snugly around the crushing blade, improving the connection strength between the mounting box and the crushing blade, and effectively controlling the vibration of the crushing blade; by setting several retaining blocks in the mounting cavity, the retaining blocks fit snugly with the crushing blade, thereby reducing the thickness of one sidewall 1, sidewall 2, sidewall 3, or sidewall 4, thereby reducing the weight of the mounting box and improving the rotary tillage efficiency of the crushing device.

[0010] Furthermore, fixing hole one and fixing hole two are provided on side wall one and side wall two, respectively.

[0011] The fixing hole one and fixing hole two are arranged opposite to each other.

[0012] The beneficial effect of adopting the above-mentioned further technical solution is that by providing fixing hole one and fixing hole two on side wall one and side wall two, fixing hole one and fixing hole two are arranged opposite to each other, and bolts pass through fixing hole one, the breaker and fixing hole two in sequence to fix the breaker in the installation cavity.

[0013] Furthermore, a retaining groove is provided at one end of the mounting box;

[0014] Preferably, the retaining groove includes retaining groove walls disposed opposite to each other, a gap is provided between the retaining groove walls, the retaining groove walls are inclined or vertically disposed, and the angle between the retaining groove wall and the bottom of the groove is less than 180°;

[0015] Preferably, the retaining groove is an arc-shaped groove.

[0016] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting the retaining groove, the connection area between the mounting box and the cutter shaft can be increased, allowing the cutter shaft to be retained in the retaining groove, thereby improving the connection strength between the mounting box and the cutter shaft; by setting the retaining groove wall, the cutter shaft is positioned between the gaps in the retaining groove wall, and by ensuring that the angle between the retaining groove wall and the groove bottom is less than 180°, the mounting box can be matched with different cutter shafts, while also improving the connection strength of the mounting box; by using an arc-shaped groove for the retaining groove, the mounting box can be connected to a cylindrical cutter shaft.

[0017] Furthermore, it also includes a fastener that connects to a plurality of the mounting boxes, the fastener having a connecting cavity, and the mounting boxes being evenly distributed around the connecting cavity.

[0018] Preferably, the connecting cavity is one of the following shapes: circular, triangular, quadrilateral, hexagonal, or octagonal.

[0019] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting a fixing component between the mounting boxes, several mounting boxes can be connected, thereby assembling multiple crushing blades into a group. Through the cooperation of the connecting cavity with the cutter shaft, multiple crushing blades are set on the outer periphery of the cutter shaft, which improves the connection strength between multiple crushing blades and the cutter box. At the same time, it can efficiently rotary tillage and crush. By using a connecting cavity that is one of circular, triangular, quadrilateral, hexagonal, or octagonal shapes, the mounting box can be adapted to connect with different cutter shafts.

[0020] Furthermore, the fastener includes several fixed base plates and connecting plates. The fixed base plates are connected to the connecting plates, the connecting plates are connected to side wall three and side wall four of the mounting box, and the fixed base plates are connected to side wall one and / or side wall two of the mounting box.

[0021] Preferably, the fixed base plate is arranged perpendicular to the connecting plate.

[0022] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by connecting the connecting plate to the side wall three and side wall four of the mounting box, and by connecting the fixed base plate to the side wall one and / or side wall two of several mounting boxes, the connection between the fixing component and the mounting box can be made more secure, the stability of the fixing component is improved, and the deformation of the fixing component is prevented, thereby enabling several crushing blades to be stably connected to the blade shaft through the blade box.

[0023] Furthermore, the fastener is provided with a plurality of retaining platforms, which are disposed between the mounting cavity and the connecting cavity, and the retaining platforms are perpendicular to the longitudinal extension direction of the mounting cavity.

[0024] Preferably, the plurality of holding platforms are sequentially connected and arranged on the outer periphery of the connecting cavity.

[0025] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting a retaining platform between the mounting cavity and the connecting cavity, the end of the cleaver handle abuts against the retaining platform, which can avoid the unstable connection of the cleaver due to the edge of the cleaver shaft abutting against the end of the cleaver handle. By connecting several retaining platforms sequentially to the outer periphery of the connecting cavity, the strength of the retaining platform can be improved, and deformation of the retaining platform can be prevented.

[0026] A crushing device, characterized in that: it includes a blade box for mounting crushing blades as described above;

[0027] It includes a cutter shaft, and a plurality of cutter boxes are arranged at intervals along the axial direction of the cutter shaft. Any adjacent cutter boxes on the cutter shaft are staggered. A crushing blade is provided in the mounting cavity.

[0028] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting several cutter boxes at intervals on the cutter shaft, the crushing cutter can be stably installed in the mounting cavity of the cutter box, which is beneficial to the rotary tillage and crushing of the crushing device.

[0029] Furthermore, the cutter shaft is disposed within the retaining groove and / or the connecting cavity.

[0030] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting the cutter shaft in the retaining groove and / or connecting cavity, a single or multiple cutter blades can be connected to the cutter shaft, which is suitable for different rotary tillage effects.

[0031] Furthermore, the plurality of tool boxes spaced apart along the tool axis are provided with anti-tangling plates, which are connected to side wall three or side wall four.

[0032] The beneficial effects of adopting the above-mentioned further technical solution are as follows: by setting anti-tangling plates on several blade boxes, weeds can be prevented from getting tangled on the blade shaft, enabling the crushing device to achieve stable rotary tillage and crushing. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the knife box structure in Example 1. Figure 1 ;

[0034] Figure 2 This is a schematic diagram of the knife box structure in Example 1. Figure 2 ;

[0035] Figure 3 This is a schematic diagram of the knife box structure in Example 2;

[0036] Figure 4 This is a schematic diagram of the knife box structure in Example 3;

[0037] Figure 5 This is a schematic diagram of the knife box structure in Example 4;

[0038] Figure 6 Schematic diagram of the crushing device Figure 1 ;

[0039] Figure 7 Schematic diagram of the crushing device Figure 2 ;

[0040] Figure 8 Schematic diagram of the crushing device Figure 3 ;

[0041] The markings in the diagram are: 1. Mounting box; 11. Side wall one; 111. Fixing hole one; 12. Side wall two; 121. Fixing hole two; 13. Side wall three; 14. Side wall four; 15. Mounting cavity; 16. Clamping block; 17. Clamping groove; 171. Clamping groove wall; 2. Fixing component; 21. Fixing base plate; 22. Connecting plate; 23. Connecting cavity; 24. Clamping platform; 3. Cutter shaft; 4. Crushing blade; 5. Anti-tangling plate. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0043] This embodiment provides Example 1.

[0044] Please see Figures 1-2 and Figure 5 A blade holder for mounting a crusher blade includes a mounting box body 1. The mounting box body 1 includes a first side wall 11, a second side wall 12, a third side wall 13, and a fourth side wall 14. The sides of the first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14 are connected sequentially, forming a mounting cavity 15. The sequential connection of the side walls of the first side wall 11, the second side wall 12, the third side wall 13, and the fourth side wall 14 increases the strength of the mounting box body 1, preventing loosening during rotary tillage. It can surround the lower end of the crusher blade 4, stably placing the crusher blade 4 within the mounting cavity 15, improving the connection strength between the crusher blade 4 and the blade shaft 3, preventing the crusher blade 4 from falling off or being damaged, and facilitating rotary tillage by the crushing device.

[0045] The first sidewall 11, the second sidewall 12, the third sidewall 13, and the fourth sidewall 14 are integrally formed; preferably, the first sidewall 11, the second sidewall 12, the third sidewall 13, and the fourth sidewall 14 are plate-shaped; more preferably, a plurality of retaining blocks 16 are provided in the mounting cavity 15, and the retaining blocks 16 are connected to the first sidewall 11, the second sidewall 12, the third sidewall 13, or the fourth sidewall 14. By integrally forming sidewall 11, sidewall 2, sidewall 3, and sidewall 4, the connection strength of sidewall 11, sidewall 2, sidewall 3, and sidewall 4 can be improved, thereby increasing the strength of the mounting box 1. By making sidewall 11, sidewall 2, sidewall 3, and sidewall 4 into plate shape, they can fit snugly around the crusher blade 4, improving the connection strength between the mounting box 1 and the crusher blade 4 and effectively controlling the vibration of the crusher blade 4. By setting several retaining blocks 16 in the mounting cavity 15, the retaining blocks 16 fit snugly with the crusher blade 4, thereby reducing the thickness of sidewall 11, sidewall 2, sidewall 3, or sidewall 4, thereby reducing the weight of the mounting box 1 and improving the rotary tillage efficiency of the crushing device.

[0046] Fixing holes 11 and 121 are provided on the first side wall 11 and the second side wall 12, respectively, and the fixing holes 11 and 121 are connected. By providing fixing holes 11 and 121 on the first side wall 11 and the second side wall 12, and arranging the fixing holes 11 and 121 opposite to each other, bolts are passed through fixing holes 11, the breaker 4, and fixing holes 121 in sequence to fix the breaker 4 in the mounting cavity 15.

[0047] One end of the mounting box 1 is provided with a retaining groove 17; preferably, the retaining groove 17 includes retaining groove walls 171 arranged opposite each other, with a gap between the retaining groove walls 171, the retaining groove walls 171 being inclined or vertical, and the angle between the retaining groove walls 171 and the bottom of the groove being less than 180°; more preferably, the retaining groove 17 is an arc-shaped groove. By providing the retaining groove 17, the connection area between the mounting box 1 and the cutter shaft 3 can be increased, allowing the cutter shaft 3 to be retained with the retaining groove 17, thereby improving the connection strength between the mounting box 1 and the cutter shaft 3; by providing the retaining groove walls 171, the cutter shaft 3 is positioned between the gaps in the retaining groove walls 171, and by having the angle between the retaining groove walls 171 and the bottom of the groove being less than 180°, the mounting box 1 can be matched with different cutter shafts 3, while also improving the connection strength of the mounting box 1; by providing the retaining groove 17 as an arc-shaped groove, the mounting box 1 can be connected to the cylindrical cutter shaft 3.

[0048] A crushing device includes a blade box for mounting crushing blades as described above; it includes a blade shaft 3, and a plurality of blade boxes are spaced apart along the axial direction of the blade shaft 3, with any adjacent blade boxes on the blade shaft 3 being staggered; a crushing blade 4 is disposed within the mounting cavity 15. By spaced apart and arranged on the blade shaft 3, the crushing blade 4 can be stably mounted within the mounting cavity 15 of the blade box, which is beneficial for the rotary tillage and crushing operations of the crushing device.

[0049] The cutter shaft 3 is disposed within the retaining groove 17. By disposing of the cutter shaft 3 within the connecting cavity 23 of the retaining groove 17, a single crushing blade 4 can be connected to the cutter shaft 3, which is suitable for different rotary tillage effects.

[0050] This embodiment provides Example 2.

[0051] The content that is the same as in Example 1 will not be repeated here; the different aspects of this example compared to Example 1 are as follows, please refer to [link / reference]. Figure 3 , Figures 6-7

[0052] A fixing member 2 connects the two mounting boxes 1. The fixing member 2 has a connecting cavity 23, and the mounting boxes 1 are evenly distributed around the outer periphery of the connecting cavity 23. Preferably, the connecting cavity 23 is one of a circle, triangle, quadrilateral, hexagon, or octagon. By setting the fixing member 2 between the mounting boxes 1, several mounting boxes 1 can be connected, thereby assembling two crushing blades 4 into a group. The connecting cavity 23 cooperates with the blade shaft 3, thus placing the two crushing blades 4 on the outer periphery of the blade shaft 3, improving the connection strength between the two crushing blades 4 and the blade box, and enabling efficient rotary tillage and crushing. The fact that the connecting cavity 23 is one of a circle, triangle, quadrilateral, hexagon, or octagon allows the mounting box 1 to be compatible with different blade shafts 3.

[0053] The fixing component 2 includes a fixing base plate 21 and two connecting plates 22. The fixing base plate 21 is connected to the connecting plates 22, and the connecting plates 22 are connected to the third side wall 13 and the fourth side wall 14 of the mounting box 1. The fixing base plate 21 is connected to the first side wall 11 and / or the second side wall 12 of the two mounting boxes 1. Preferably, the fixing base plate 21 and the connecting plates 22 are arranged perpendicularly. By connecting the connecting plates 22 to the third side wall 13 and the fourth side wall 14 of the mounting box 1, and by connecting the fixing base plate 21 to the first side wall 11 and / or the second side wall 12 of the two mounting boxes 1, the connection between the fixing component 2 and the mounting box 1 can be made more secure, improving the stability of the fixing component 2 and preventing deformation of the fixing component 2. This allows for a stable connection between the multiple crushing blades 4 and the blade shaft 3 through the blade box.

[0054] The fixing member 2 is provided with two retaining platforms 24, which are disposed between the mounting cavity 15 and the connecting cavity 23. The retaining platforms 24 are perpendicular to the longitudinal extension direction of the mounting cavity 15. Preferably, the two retaining platforms 24 are sequentially connected to the outer periphery of the connecting cavity 23. By providing retaining platforms 24 between the mounting cavity 15 and the connecting cavity 23, the end of the handle of the crusher 4 abuts against the retaining platform 24, which can prevent the edge of the cutter shaft 3 from abutting against the end of the handle, thus avoiding unstable connection of the crusher 4. By sequentially connecting the two retaining platforms 24 to the outer periphery of the connecting cavity 23, the strength of the retaining platforms 24 can be improved, preventing deformation of the retaining platforms 24.

[0055] The cutter shaft 3 is disposed within the connecting cavity 23. By disposing of the cutter shaft 3 within the connecting cavity 23, a single breaker 4 or two breaker 4s can be connected to the cutter shaft 3, suitable for different rotary tillage effects.

[0056] An anti-tangling plate 5 is provided on several cutter boxes spaced apart along the cutter shaft 3. The anti-tangling plate 5 is connected to side wall 3 13 or side wall 4 14. By providing anti-tangling plates 5 on several cutter boxes, weeds can be prevented from getting tangled on the cutter shaft 3, enabling the crushing device to achieve stable rotary tillage and crushing.

[0057] This embodiment provides Embodiment 3.

[0058] The content that is the same as in Example 1 will not be repeated here; the different aspects of this example compared to Example 1 are as follows, please refer to [link / reference]. Figure 4 , Figure 8

[0059] The three mounting boxes 1 are connected by fixing members 2, and the fixing members 2 are provided with connecting cavities 23. The mounting boxes 1 are evenly distributed around the outer periphery of the connecting cavities 23. Preferably, the connecting cavities 23 are one of the following shapes: circular, triangular, quadrilateral, hexagonal, and octagonal. By setting fixing members 2 between the mounting boxes 1, several mounting boxes 1 can be connected, thereby assembling two crushing blades 4 into a group. Through the cooperation of the connecting cavities 23 with the blade shaft 3, the three crushing blades 4 are placed on the outer periphery of the blade shaft 3, which improves the connection strength between the three crushing blades 4 and the blade box, and at the same time enables efficient rotary tillage and crushing. The fact that the connecting cavities 23 are one of the following shapes (circular, triangular, quadrilateral, hexagonal, and octagonal) allows the mounting boxes 1 to be adapted to connect with different blade shafts 3.

[0060] The fixing component 2 includes a fixing base plate 21 and two connecting plates 22. The fixing base plate 21 is connected to the connecting plates 22, and the connecting plates 22 are connected to the third side wall 13 and the fourth side wall 14 of the mounting box 1. The fixing base plate 21 is connected to the first side wall 11 and / or the second side wall 12 of the three mounting boxes 1. Preferably, the fixing base plate 21 and the connecting plates 22 are arranged perpendicularly. By connecting the connecting plates 22 to the third side wall 13 and the fourth side wall 14 of the mounting box 1, and by connecting the fixing base plate 21 to the first side wall 11 and / or the second side wall 12 of the three mounting boxes 1, the connection between the fixing component 2 and the mounting box 1 can be made more secure, improving the stability of the fixing component 2 and preventing deformation of the fixing component 2. This allows the multiple crushing blades 4 to be stably connected to the blade shaft 3 through the blade box.

[0061] The cutter shaft 3 is disposed within the retaining groove 17 and the connecting cavity 23. By disposing of the cutter shaft 3 within the connecting cavity 23, the three crushing blades 4 can be connected to the cutter shaft 3, which is suitable for different rotary tillage effects.

[0062] This embodiment provides Embodiment 4.

[0063] The contents that are the same as in Example 3 will not be repeated here; the different solutions between this example and Example 3 are as follows, please refer to [link / reference]. Figure 5 , Figure 7

[0064] The four mounting boxes 1 are connected by fasteners 2, and the fasteners 2 are provided with connecting cavities 23. The mounting boxes 1 are evenly distributed around the outer periphery of the connecting cavities 23. By setting the fasteners 2 between the mounting boxes 1, the four mounting boxes 1 can be connected, thereby assembling four crushing blades 4 into a group. Through the cooperation of the connecting cavity 23 with the blade shaft 3, the four crushing blades 4 are set on the outer periphery of the blade shaft 3, which improves the connection strength between the four crushing blades 4 and the blade box, and at the same time enables efficient rotary tillage and crushing.

[0065] The fixing component 2 includes a fixing base plate 21 and four connecting plates 22. The fixing base plate 21 is connected to the connecting plates 22, and the connecting plates 22 are connected to the third side wall 13 and the fourth side wall 14 of the mounting box 1. The fixing base plate 21 is connected to the first side wall 11 and / or the second side wall 12 of the four mounting boxes 1. Preferably, the fixing base plate 21 and the connecting plates 22 are arranged perpendicularly. By connecting the connecting plates 22 to the third side wall 13 and the fourth side wall 14 of the mounting box 1, and by connecting the fixing base plate 21 to the first side wall 11 and / or the second side wall 12 of the four mounting boxes 1, the connection between the fixing component 2 and the mounting box 1 can be made more secure, improving the stability of the fixing component 2 and preventing deformation of the fixing component 2. This allows the four crushing blades 4 to be stably connected to the blade shaft 3 through the blade box.

[0066] The fixing member 2 is provided with four retaining platforms 24, which are disposed between the mounting cavity 15 and the connecting cavity 23. The retaining platforms 24 are perpendicular to the longitudinal extension direction of the mounting cavity 15. Preferably, the four retaining platforms 24 are sequentially connected to the outer periphery of the connecting cavity 23. By providing retaining platforms 24 between the mounting cavity 15 and the connecting cavity 23, the end of the handle of the crusher 4 abuts against the retaining platform 24, which can prevent the edge of the cutter shaft 3 from abutting against the end of the handle, thus avoiding unstable connection of the crusher 4. By sequentially connecting the four retaining platforms 24 to the outer periphery of the connecting cavity 23, the strength of the retaining platforms 24 can be improved, preventing deformation of the retaining platforms 24.

[0067] The cutter shaft 3 is disposed within the connecting cavity 23. By disposing of the cutter shaft 3 within the connecting cavity 23, four crushing blades 4 can be connected to the cutter shaft 3, which is suitable for different rotary tillage effects.

[0068] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A blade holder for mounting a crushing blade, characterized in that: The device includes a mounting box (1), which includes a first side wall (11), a second side wall (12), a third side wall (13), and a fourth side wall (14). The sides of the first side wall (11), the second side wall (12), the third side wall (13), and the fourth side wall (14) are connected in sequence, and the first side wall (11), the second side wall (12), the third side wall (13), and the fourth side wall (14) surround each other to form a mounting cavity (15).

2. The blade holder for mounting the crusher blade according to claim 1, characterized in that: The first sidewall (11), the second sidewall (12), the third sidewall (13) and the fourth sidewall (14) are integrally formed.

3. The blade holder for mounting the crusher blade according to claim 2, characterized in that: The first sidewall (11), the second sidewall (12), the third sidewall (13) and the fourth sidewall (14) are plate-shaped.

4. The blade holder for mounting the crusher blade according to claim 2, characterized in that: The mounting cavity (15) is provided with a number of retaining blocks (16), which are connected to side wall one (11), side wall two (12), side wall three (13) or side wall four (14).

5. The blade holder for mounting the crusher blade according to claim 1, characterized in that: The first sidewall (11) and the second sidewall (12) are provided with a first fixing hole (111) and a second fixing hole (121), which are arranged opposite to each other.

6. The blade holder for mounting the crusher blade according to claim 1, characterized in that: One end of the mounting box (1) is provided with a retaining groove (17).

7. The blade holder for mounting the crusher blade according to claim 6, characterized in that: The retaining groove (17) includes retaining groove walls (171) arranged opposite to each other, with a gap between the retaining groove walls (171), the retaining groove walls (171) being inclined or vertically arranged, and the angle between the retaining groove walls (171) and the bottom of the groove being less than 180°.

8. The blade holder for mounting the crusher blade according to claim 6, characterized in that: The retaining groove (17) is an arc-shaped groove.

9. The blade holder for mounting the crusher blade according to claim 1, characterized in that: It also includes a fastener (2) connected to a plurality of the mounting boxes (1), wherein the fastener (2) has a connecting cavity (23) at its center, and the mounting boxes (1) are evenly distributed around the connecting cavity (23).

10. The blade holder for mounting the crusher blade according to claim 9, characterized in that: The connecting cavity (23) is one of the following shapes: circular, triangular, quadrilateral, hexagonal, or octagonal.

11. The blade holder for mounting the crusher blade according to claim 9, characterized in that: The fastener (2) includes several fixed base plates (21) and connecting plates (22). The fixed base plates (21) are connected to the connecting plates (22). The connecting plates (22) are connected to the third side wall (13) and the fourth side wall (14) of the mounting box (1). The fixed base plates (21) are connected to the first side wall (11) and / or the second side wall (12) of several mounting boxes (1).

12. The blade holder for mounting the crusher blade according to claim 11, characterized in that: The fixed base plate (21) is perpendicular to the connecting plate (22).

13. The blade holder for mounting the crusher blade according to claim 11, characterized in that: The fixed base plate is one of a quadrilateral plate, a hexagonal plate, and an octagonal plate.

14. The blade holder for mounting the crusher blade according to claim 9, characterized in that: The fastener (2) is provided with a plurality of holding platforms (24), which are located between the mounting cavity (15) and the connecting cavity (23). The holding platforms (24) are perpendicular to the longitudinal extension direction of the mounting cavity (15).

15. The blade holder for mounting the crusher blade according to claim 14, characterized in that: The plurality of holding platforms (24) are sequentially connected to the outer periphery of the connecting cavity (23).

16. A crushing device, characterized in that: Includes the blade holder for mounting the crushing blade as described in any one of claims 1-15; Includes a cutter shaft (3), and a plurality of cutter boxes are arranged at intervals along the axial direction of the cutter shaft (3). Any adjacent cutter boxes on the cutter shaft (3) are staggered. A crushing blade (4) is provided in the mounting cavity (15).

17. The crushing device according to claim 16, characterized in that: The cutter shaft (3) is disposed in the retaining groove (17) and / or the connecting cavity (23).

18. The crushing device according to claim 16, characterized in that: The plurality of knife boxes arranged at intervals along the knife shaft (3) are provided with anti-tangling plates (5), and the anti-tangling plates (5) are connected to side wall three (13) or side wall four (14).

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