Tool bit module and crushing device

Abstract

The utility model provides a tool bit module and a crushing device, the tool bit module comprises at least one tool bit, each tool bit is provided with a mounting part and two cutting arms located on the two sides of the mounting part respectively, and blade parts are formed on the two opposite side edges of each cutting arm. The tool bit module and the crushing device are low in noise and good in crushing effect.

Description

Technical Field

[0001] The present disclosure relates to the technical field of crushing devices, and particularly relates to a cutter head module and a crushing device. Background Art

[0002] In products such as wall breakers, soymilk makers, cooking machines, and grinders, there is generally a cutter head, which can crush items such as beans and fruits to achieve functions such as juicing or making soymilk.

[0003] In related technologies, the cutter head generally has a single-sided cutting edge and can have multiple numbers.

[0004] The inventor found that when the cutter head in related technologies cuts the item to be crushed, a turbulent fluid noise is likely to be formed at the position of the back of the cutter. Summary of the Utility Model

[0005] In view of this, the present disclosure provides a cutter head module and a crushing device, which have relatively low noise and good crushing effect.

[0006] Specifically, the following technical solutions are included:

[0007] In a first aspect, an embodiment of the present disclosure provides a cutter head module, including at least one cutter head, wherein each cutter head has a mounting portion and two cutting arms respectively located on both sides of the mounting portion, and cutting edges are formed on two opposite sides of each cutting arm.

[0008] Optionally, the at least one cutter head includes a first cutter head, and each cutting edge of at least one cutting arm of the first cutter head has serrations.

[0009] Optionally, the serrations extend from the cutting edge along the surface of the cutting arm towards the center of the cross-section of the cutting arm, forming a diversion groove.

[0010] Optionally, the diversion grooves are distributed on two opposite sides of each cutting arm of the first cutter head.

[0011] Optionally, the at least one cutter head further includes a second cutter head, a third cutter head, and / or a fourth cutter head;

[0012] The two cutting arms of the second cutter head extend obliquely away from the mounting portion in a first direction;

[0013] The first parts of the two cutting arms of the third cutter head extend obliquely away from the mounting portion in the first direction, and the second parts extend away from the mounting portion from the first parts, and the two cutting arms of the third cutter head are located outside the two cutting arms of the second cutter head;

[0014] The first portions of the two cutting arms of the fourth cutter head extend obliquely away from the mounting portion in the second direction, and the second portions extend away from the mounting portion from the first portions; and / or

[0015] The two cutting arms of the first cutter head extend away from the mounting portion respectively;

[0016] Wherein, the first direction is the direction perpendicular to the plane where the mounting portion is located, and the second direction is opposite to the first direction.

[0017] Optionally, the mounting portions of the second cutter head, the third cutter head, the first cutter head and the fourth cutter head are stacked in sequence and fixedly installed together.

[0018] Optionally, the cross-section of the cutting arm of each cutter head gradually thins from the central position to both sides, and the width of each cutting arm gradually narrows in the direction away from the mounting portion.

[0019] Optionally, the four cutting arms of the second cutter head and the third cutter head are equally divided into 360 degrees in the circumferential direction, and the four cutting arms of the first cutter head and the fourth cutter head are equally divided into 360 degrees in the circumferential direction; and / or

[0020] The third cutter head and the fourth cutter head are symmetric with respect to the first cutter head.

[0021] Optionally, the rotation paths of the ends of the second cutter head, the third cutter head, the first cutter head and the fourth cutter head away from the mounting portion have a second radius, a third radius, a first radius and a fourth radius respectively, the second radius is smaller than the third radius, the first radius and the fourth radius, and / or, the third radius, the first radius and the fourth radius are equal or unequal.

[0022] In a second aspect, an embodiment of the present disclosure provides a crushing device, including any one of the cutter head modules as described above.

[0023] Optionally, it further includes a rotating shaft assembly and a driving assembly, one end of the rotating shaft assembly is connected to the cutter head module, and the other end is connected to the driving assembly;

[0024] The rotating shaft assembly includes a rotating shaft and a driving connecting piece, and each cutter head in the cutter head module has a mounting hole;

[0025] One end of the rotating shaft is installed in the mounting hole of the mounting portion of each cutter head, and the other end is connected to the output shaft of the driving assembly through the driving connecting piece.

[0026] Optionally, the device further includes a sealing assembly and a bottom case. The driving assembly is located on a side of the bottom case away from the cutter head module, and the rotating shaft passes through the bottom case and is connected to the driving assembly.

[0027] The sealing assembly includes a main body portion and a first seal. The main body portion surrounds the rotating shaft and is sealingly connected to the rotating shaft. The first seal is installed on the periphery of the main body portion, and the bottom case is sealingly connected to the first seal.

[0028] Optionally, a second mounting position is provided inside the main body portion. The sealing assembly further includes a bearing, and the bearing is installed in the second mounting position to surround and support the rotating shaft.

[0029] The bearing includes a first sub-bearing and a second sub-bearing. A first groove is provided on the side wall of the rotating shaft, a second groove is provided on the inner side wall of the second mounting position, and a first step is provided inside the main body portion.

[0030] The crushing device further includes a first limiting member, and the first limiting member is partially clamped in the first groove to limit the first sub-bearing between the first step and the first groove.

[0031] The crushing device further includes a second limiting member, and the second limiting member is partially clamped in the second groove to limit the second sub-bearing between the first groove and the second groove.

[0032] Optionally, the main body portion has an inclined surface portion that extends obliquely away from the rotating shaft in a second direction.

[0033] At least one cutter head of the cutter head module includes a fourth cutter head. The first portions of the two cutting arms of the fourth cutter head extend obliquely away from the mounting portion in the second direction, and the second portions extend away from the mounting portion from the first portions.

[0034] The extending direction of the inclined surface portion is the same as that of the first portions of the cutting arms of the fourth cutter head.

[0035] The embodiments of the present disclosure provide a cutter head module and a crushing device. The cutter head module has at least one cutter head. Each cutter head has cutting arms on both sides of the mounting portion. Cutting edges are formed on two opposite side edges of each cutting arm. Thus, a design without a cutter back is achieved for each cutting arm (since cutting edges are formed on both side edges, there is no cutter back). In this way, when the cutter head cuts an object, there will be no problem of turbulent fluid noise at the cutter back. At the same time, since cutting edges are provided on both side edges of each cutting arm, by changing the direction of the driving force on the cutter head, the cutter head module can cut an object in two opposite directions, that is, forward cutting and reverse cutting are achieved, and thus the crushing effect can be effectively enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0037] Figure 1 Structural schematic diagram of a cutter head module provided by an embodiment of the present disclosure;

[0038] Figure 2 Top view of a cutter head module provided by an embodiment of the present disclosure;

[0039] Figure 3 Partial structural schematic diagram of a crushing device provided by an embodiment of the present disclosure;

[0040] Figure 4 For Figure 3 Explosion schematic diagram of the structure shown;

[0041] Figure 5 For Figure 3 Cross-sectional view of the structure shown;

[0042] Figure 6 For Figure 3 Another cross-sectional view of the structure shown;

[0043] Figure 7 For Figure 6 Enlarged view of the structure shown at frame A.

[0044] The reference numerals in the drawings respectively represent:

[0045] 1 - cutter head module; 11 - cutter head; 1101 - mounting part; 11011 - mounting hole; 1102 - cutting arm; 11021 - cutting edge; 111 - first cutter head; 1111 - saw teeth; 11111 - diversion groove; 112 - second cutter head; 113 - third cutter head; 114 - fourth cutter head;

[0046] 2 - rotating shaft assembly; 21 - rotating shaft; 211 - first groove; 22 - driving connecting piece;

[0047] 3 - driving assembly; 31 - output shaft;

[0048] 4 - Sealing assembly; 41 - Main body; 411 - First installation position; 4111 - Third clamping part; 412 - Second installation position; 4121 - Second groove; 413 - First step; 414 - Inclined surface part; 42 - First seal; 421 - First clamping part; 422 - Fourth clamping part; 43 - Second seal; 44 - Gasket; 45 - Fastener; 46 - Bearing; 461 - First sub - bearing; 462 - Second sub - bearing;

[0049] 5 - Bottom case; 51 - Second clamping part;

[0050] 6 - First limiting part;

[0051] 7 - Second limiting part.

[0052] Through the above - mentioned drawings, specific embodiments of the present disclosure have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present disclosure in any way, but to explain the concept of the present disclosure to those skilled in the art by referring to specific embodiments. Specific embodiments

[0053] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0054] The orientation terms involved in the embodiments of the present disclosure, such as "upper", "lower", "side", etc., generally take the relative orientation relationship between the orientations shown in the drawings or the structures when the cutter head module or the crushing device is placed in the habitual posture as the reference. And using these orientation terms is only to more clearly describe the relationship between the structures and the structures, rather than to describe the absolute orientation. When the cutter head module or the crushing device is placed in different postures, the orientation may change. For example, "upper" and "lower" may be interchanged.

[0055] Unless otherwise defined, all technical terms used in the embodiments of the present disclosure have the same meaning as commonly understood by those of ordinary skill in the art.

[0056] To make the technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below in conjunction with the drawings.

[0057] In the first aspect, the embodiments of the present disclosure provide a cutter head module. Refer to Figure 1-2, the cutter head module includes at least one cutter head 11, each of which has a mounting portion 1101 and two cutting arms 1102 located on both sides of the mounting portion 1101 respectively, and cutting edges 11021 are formed on two opposite sides of each cutting arm 1102.

[0058] In the embodiments of the present disclosure, there is at least one cutter head in the cutter head module. Each cutter head has cutting arms on both sides of the mounting portion respectively, and cutting edges are formed on two opposite sides of each cutting arm. Thus, each cutting arm realizes a design without a knife back (since cutting edges are formed on both sides, there is no knife back). In this way, when the cutter head cuts an object, there will be no problem of turbulent fluid noise at the knife back. At the same time, since cutting edges are provided on both sides of each cutting arm, by changing the direction of the driving force on the cutter head, the cutter head module can cut the object in two opposite directions, that is, realize forward cutting and reverse cutting, and thus can effectively enhance the crushing effect.

[0059] It should be noted that changing the direction of the driving force on the cutter head can be directly achieved by changing the control parameters of the driving component without changing the hardware structure of the driving component. Therefore, the implementation cost of the bidirectional rotation control of the above cutter head module is relatively low.

[0060] In one embodiment, referring to Figure 1-2 , at least one cutter head 11 includes a first cutter head 111, and each cutting edge 11021 of at least one cutting arm 1102 of the first cutter head 111 has serrations 1111. These serrations can enhance the crushing effect on the object to be broken.

[0061] Optionally, referring to Figure 1-2 , the serrations 1111 extend from the cutting edge 11021 along the surface of the cutting arm towards the direction close to the center of the cross-section of the cutting arm 1102, forming a diversion groove 11111. By forming the diversion groove, the diversion of the broken object can be realized, avoiding the direct large-area contact between the broken object and the cutting arm, and thus reducing the noise.

[0062] Optionally, referring to Figure 1-2 , the diversion grooves 11111 are distributed on two opposite sides of each cutting arm 1102 of the first cutter head 111. This can ensure that the broken objects located above and below the first cutter head can be diverted, and thus further reduce the noise.

[0063] In some embodiments, referring to Figure 1 and Figure 3 , at least one cutter head 11 further includes a second cutter head 112, a third cutter head 113 and / or a fourth cutter head 114;

[0064] The two cutting arms 1102 of the second cutter head 112 extend obliquely away from the mounting portion 1101 in a first direction;

[0065] The first parts of the two cutting arms 1102 of the third cutter head 113 extend obliquely away from the mounting part 1101 in the first direction, the second parts extend away from the mounting part 1101 starting from the first parts, and the two cutting arms 1102 of the third cutter head 113 are located outside the two cutting arms 1102 of the second cutter head 112;

[0066] The first parts of the two cutting arms 1102 of the fourth cutter head 114 extend obliquely away from the mounting part 1101 in the second direction, and the second parts extend away from the mounting part 1101 starting from the first parts; and / or

[0067] The two cutting arms 1102 of the first cutter head 111 extend away from the mounting part 1101 respectively;

[0068] Wherein, the first direction is the direction perpendicular to the plane where the mounting part 1101 is located, and the second direction is opposite to the first direction.

[0069] In this embodiment, by means of the combination of multiple cutter heads, it is possible to comprehensively crush objects at different height levels. Among them, the second cutter head 112 can play a role in stirring and pushing the central particles to the outside, the third cutter head and the fourth cutter head can cut and crush the object to be crushed at different heights, and the first cutter head has serrations and can make the crushed object finer.

[0070] Optionally, referring to Figure 1 and Figure 3 , the mounting parts 1101 of the second cutter head 112, the third cutter head 113, the first cutter head 111 and the fourth cutter head 114 are stacked in sequence and fixedly installed together. Fixing the at least four cutter heads in the foregoing manner can ensure that the four cutter heads do not interfere with each other during rotation, but can work together to improve the crushing effect.

[0071] Optionally, referring to Figure 1 , the cross-section of the cutting arm 1102 of each cutter head gradually thins from the center position to both sides, and the width of each cutting arm 1102 gradually narrows in the direction away from the mounting part 1101. Such a setting can ensure that each cutting arm has equal stiffness and is lightweight, can increase the overall resonance frequency of the cutter head module, and reduce the vibration of the cutter head.

[0072] Optionally, referring to Figure 1-2 , the four cutting arms 1102 of the second cutter head 112 and the third cutter head 113 are equally divided into 360 degrees in the circumferential direction, and the four cutting arms 1102 of the first cutter head 111 and the fourth cutter head 114 are equally divided into 360 degrees in the circumferential direction; and / or

[0073] The third cutter head 113 and the fourth cutter head 114 are symmetrical with respect to the first cutter head 111.

[0074] Based on the above settings, it can ensure that the force on the overall cutter head module is more uniform, which is beneficial to improving the crushing effect, stirring efficiency and service life of the cutter head module.

[0075] Optionally, referring to Figure 1-2 , the rotation paths of the ends of the second cutter head 112, the third cutter head 113, the first cutter head 111 and the fourth cutter head 114 away from the mounting portion 1101 respectively have a second radius, a third radius, a first radius and a fourth radius, the second radius is smaller than the third radius, the first radius and the fourth radius, and / or, the third radius, the first radius and the fourth radius are equal or unequal.

[0076] Based on the foregoing settings, it can ensure that the second cutter head always has the effect of pushing particles to other cutter heads, which is beneficial to improving the crushing efficiency. The radii corresponding to the other cutter heads can be equal or unequal. By setting these radii, hierarchical crushing as required can be achieved.

[0077] In summary, the cutter head module provided by the embodiments of the present disclosure has low noise during use, good crushing effect, and can also achieve hierarchical crushing.

[0078] In a second aspect, the embodiments of the present disclosure provide a crushing device. Referring to Figure 3 , the crushing device includes any one of the cutter head modules 1 as described above.

[0079] In the embodiments of the present disclosure, since there is at least one cutter head in the cutter head module of the crushing device, and cutting arms are respectively provided on both sides of the mounting portion of each cutter head, and cutting edges are formed on two opposite sides of each cutting arm, thus each cutting arm realizes a design without a knife back (since cutting edges are formed on both sides, there is no knife back). In this way, when the cutter head cuts an object, there will be no problem of turbulent fluid noise at the knife back. At the same time, since cutting edges are provided on both sides of each cutting arm, by changing the direction of the driving force on the cutter head, the cutter head module can cut the object in two opposite directions, that is, realize forward cutting and reverse cutting, and thus can effectively enhance the crushing effect.

[0080] In some embodiments, referring to Figure 3 , the crushing device further includes a rotating shaft assembly 2 and a driving assembly 3. One end of the rotating shaft assembly 2 is connected to the cutter head module 1, and the other end is connected to the driving assembly 3. In this way, the driving assembly can drive the cutter head module by means of the rotating shaft assembly.

[0081] Optionally, in combination with Figure 3-6 , the rotating shaft assembly 2 includes a rotating shaft 21 and a driving connecting piece 22, and the mounting portion 1101 of each cutter head 11 in the cutter head module 1 has a mounting hole 11011;

[0082] One end of the rotating shaft 21 is installed in the mounting hole 11011 of the mounting portion 1101 of each cutter head 11, and the other end is connected to the output shaft 31 of the drive assembly 3 through a drive connection member 22.

[0083] Based on the above settings, it can ensure that the cutter head module and the drive assembly are effectively linked by means of the rotating shaft in the rotating shaft assembly, realizing the transmission of driving force between the two. Optionally, the drive connection member can be a spline, and the drive assembly can be a motor.

[0084] In some embodiments, in combination with Figure 3-6 , the crushing device further includes a sealing assembly 4 and a bottom shell 5. The drive assembly 3 is located on the side of the bottom shell 5 away from the cutter head module 1. The rotating shaft 21 passes through the bottom shell 5 and is connected to the drive assembly 3. The sealing assembly 4 is located between the rotating shaft 21 and the bottom shell 5 to seal the gap between the rotating shaft 21 and the bottom shell 5.

[0085] In this embodiment, the drive assembly 3 can be encapsulated by the bottom shell and the sealing assembly without being exposed, which can ensure the aesthetic appearance of the crushing device. At the same time, the sealing assembly can seal the gap between the rotating shaft and the bottom shell, ensuring that the particles obtained by crushing do not enter the drive assembly through the bottom shell, and guaranteeing the working stability of the crushing device.

[0086] In some embodiments, in combination with Figure 3-6 , the sealing assembly 4 includes a main body portion 41 and a first seal 42. The main body portion 41 surrounds the rotating shaft 21 and is sealingly connected to the rotating shaft 21. The first seal 42 is installed on the periphery of the main body portion 41, and the bottom shell 5 is sealingly connected to the first seal 42.

[0087] In this embodiment, the bottom shell 5 is sealingly installed on the main body portion 41 by means of the first seal 42. Thus, the particles or liquid obtained by crushing can be effectively blocked and will not enter the lower part of the bottom shell (the position where structures such as the drive assembly are located).

[0088] Optionally, the material of the first seal 42 includes silica gel or rubber. In this way, the first seal can isolate the vibration of the cutter head module from the bottom shell, thereby reducing the overall vibration of the crushing device.

[0089] Optionally, in combination with Figure 5-7 , the first seal 42 has a first clamping member 421, and the bottom shell 5 has a second clamping member 51. The first clamping member 421 is clamped with the second clamping member 51. In this way, by means of the clamping cooperation between the first clamping member and the second clamping member, the installation stability and the sealing effect between the bottom shell and the first seal can be further improved.

[0090] Optionally, in combination with Figure 5-7, the periphery of the main body 41 has a first mounting position 411, and the first seal 42 is located within the first mounting position 411; the first mounting position 411 has a third engaging member 4111, and the first seal 42 has a fourth engaging member 422, and the third engaging member 4111 is engaged with the fourth engaging member 422. In this way, by means of the engaging cooperation between the third engaging member and the fourth engaging member, the installation stability and sealing effect of the first seal and the main body can be further improved.

[0091] Optionally, in combination with Figure 7 , the first engaging member 421 is one of a groove or a protrusion structure, and the second engaging member 51 is the other of a groove or a protrusion structure; and / or the third engaging member 4111 is one of a groove or a protrusion structure, and the fourth engaging member 422 is the other of a groove or a protrusion structure. Here, a specific implementation manner of the engaging cooperation is given, and those skilled in the art can also select other ways according to the actual situation, which will not be limited too much here.

[0092] In some embodiments, referring to Figure 5-7 , the sealing assembly 4 further includes a second seal 43, and the second seal 43 is located between the main body 41 and the rotating shaft 21 to seal the gap between the main body 41 and the rotating shaft 21. By means of this second seal, it can be ensured that the broken particles or liquid will not enter the gap between the main body and the rotating shaft. At the same time, as described below, this second seal can also ensure that the lubricating grease of the bearing will not enter the crushing object accommodating space (i.e., the space above the bottom case) of the crushing device. Optionally, the material of the second seal includes silicone or rubber.

[0093] It should be noted that in the drawings and the foregoing description, only the bottom case is simply described, but the crushing device can actually have a completely closed cavity, and the bottom case is only a partial housing at the bottom of the cavity. In the drawings and the foregoing description, only the bottom case is separately described for the purpose of more clearly describing the structure of the crushing device, and the other part of the housing is not described, which does not constitute a limitation to the solution of this application.

[0094] In some embodiments, in combination with Figure 5-7 , the sealing assembly 4 further includes a gasket 44 and a fastener 45. The gasket 44 is located on the periphery of the main body 41 and is stacked with the first seal 42, and the fastener 45 is installed on the periphery of the main body 41 and presses the gasket 44 against the first seal 42.

[0095] By means of the gasket and the fastener, the sealing performance and installation stability between the bottom case, the first seal and the main body can be further enhanced.

[0096] In some embodiments, in combination with Figure 5-7, inside the main body portion 41, there is a second mounting position 412. The sealing assembly 4 further includes a bearing 46, and the bearing 46 is installed in the second mounting position 412 to surround and support the rotating shaft 21.

[0097] In this embodiment, a bearing can be installed inside the main body portion. While allowing the rotating shaft to rotate, this bearing can effectively support the rotating shaft, ensuring that the rotation center of the rotating shaft remains unchanged and ensuring a relatively high service life of the crushing device.

[0098] Optionally, referring to Figure 7 , the bearing 46 includes a first sub-bearing 461 and a second sub-bearing 462. The side wall of the rotating shaft 21 has a first groove 211, the inner side wall of the second mounting position 412 has a second groove 4121, and inside the main body portion 41, there is a first step 413;

[0099] The crushing device further includes a first limiting member 6, and the first limiting member 6 is partially clamped in the first groove 211 to limit the first sub-bearing 461 between the first step 413 and the first groove 211;

[0100] The crushing device further includes a second limiting member 7, and the second limiting member 7 is partially clamped in the second groove 4121 to limit the second sub-bearing 462 between the first groove 211 and the second groove 4121.

[0101] Based on the foregoing settings, it is possible to install two bearings inside the main body portion in sequence to achieve double support for the rotating shaft. At the same time, with the help of two limiting members, the grooves on the rotating shaft, and the grooves on the inner wall of the main body portion, the installation stability of the two bearings is ensured. Optionally, the first limiting member and / or the second limiting member can be a snap ring.

[0102] In some embodiments, in combination with Figure 1-4 and Figure 6 , the main body portion 41 has an inclined surface portion 414 that extends obliquely away from the rotating shaft 21 in the second direction;

[0103] At least one cutter head 11 of the cutter head module 1 includes a fourth cutter head 114. The first part of the two cutting arms 1102 of the fourth cutter head 114 extends obliquely away from the mounting portion 1101 in the second direction, and the second part extends along the direction away from the mounting portion 1101 starting from the first part;

[0104] The extending direction of the inclined surface portion 414 is the same as that of the first part of the cutting arm 1102 of the fourth cutter head 114.

[0105] In this embodiment, by setting the inclined surface portion of the main body portion to have the same extending direction as the first part of the fourth cutter head, the object cut by the fourth cutter head has a relatively large and relatively easy-to-slide accommodation space, so that the crushed object is not likely to collide with the main body portion or cause excessive noise due to friction.

[0106] In summary, the crushing device provided by the embodiments of the present disclosure can achieve bidirectional crushing by means of the foregoing cutter head module, and can also effectively reduce the noise during cutter head cutting. At the same time, by means of structures such as the first seal, the vibration isolation between the rotating shaft and the bottom shell is achieved, which is beneficial to reducing the overall vibration of the crushing device driven by the vibration of the cutter head, and thus the vibration noise of the crushing device is small.

[0107] In the present disclosure, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

[0108] After considering the specification and practicing the present disclosure herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include known common general knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are only regarded as exemplary.

[0109] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A cutter head module, characterized in that: The invention comprises at least one cutting head (11), wherein each cutting head (11) comprises a mounting portion (1101) and two cutting arms (1102) respectively located on two sides of the mounting portion (1101), and two opposite sides of each cutting arm (1102) are formed with a blade portion (11021); The at least one cutter head (11) comprises a second cutter head (112), a third cutter head (113) and / or a fourth cutter head (114); The two cutting arms (1102) of the second blade head (112) extend obliquely in a first direction away from the mounting portion (1101); The first part of the two cutting arms (1102) of the third cutting head (113) extends obliquely in the first direction away from the mounting portion (1101), and the second part extends from the first part in the direction away from the mounting portion (1101), and the two cutting arms (1102) of the third cutting head (113) are located at the periphery of the two cutting arms (1102) of the second cutting head (112); The first parts of the two cutting arms (1102) of the fourth blade head (114) extend obliquely in a second direction away from the mounting portion (1101), and the second parts extend from the first parts in a direction away from the mounting portion (1101); The first direction is a direction perpendicular to the plane where the mounting portion (1101) is located, and the second direction is opposite to the first direction.

2. The cutter head module according to claim 1, characterized in that: The at least one cutting head (11) further comprises a first cutting head (111), each blade portion (11021) of at least one cutting arm (1102) of the first cutting head (111) having saw teeth (1111).

3. The cutter head module according to claim 2, characterized in that: The saw teeth (1111) transitionally extend from the blade portion (11021) along the surface of the cutting arm (1102) toward a direction close to the center of the cross section of the cutting arm (1102), thereby forming a guide groove (11111).

4. The cutter head module according to claim 3, characterized in that: The guide grooves (11111) are distributed on two opposite sides of each cutting arm (1102) of the first cutting head (111).

5. The cutter head module according to any one of claims 2 to 4, characterized in that: The two cutting arms (1102) of the first cutting head (111) respectively extend in a direction away from the mounting portion (1101).

6. The cutter head module according to any one of claims 2 to 4, characterized in that: The mounting portions (1101) of the second cutter head (112), the third cutter head (113), the first cutter head (111), and the fourth cutter head (114) are stacked in sequence and fixedly mounted together.

7. The cutter head module according to any one of claims 1 to 4, characterized in that: The cross section of the cutting arm (1102) of each cutting head gradually becomes thinner from the center position to the two side edges, and the width of each cutting arm (1102) gradually becomes narrower in the direction away from the mounting portion (1101).

8. The cutter head module according to any one of claims 2 to 4, characterized in that: The four cutting arms (1102) of the second cutting head (112) and the third cutting head (113) equally divide 360 ​​degrees in the circumferential direction, and the four cutting arms (1102) of the first cutting head (111) and the fourth cutting head (114) equally divide 360 ​​degrees in the circumferential direction; and / or The third cutter head (113) and the fourth cutter head (114) are symmetrical relative to the first cutter head (111).

9. The cutter head module according to any one of claims 2 to 4, characterized in that: The rotation paths of the second tool head (112), the third tool head (113), the first tool head (111) and the fourth tool head (114) away from the ends of the mounting portion (1101) respectively have a second radius, a third radius, a first radius and a fourth radius, the second radius is smaller than the third radius, the first radius and the fourth radius, and / or the third radius, the first radius and the fourth radius are equal or different.

10. A crushing device, characterized in that: It comprises a cutter head module (1) as described in any one of claims 1 to 9.

11. The crushing device according to claim 10, characterized in that: It also comprises a rotating shaft assembly (2) and a driving assembly (3), wherein one end of the rotating shaft assembly (2) is connected to the cutter head module (1), and the other end is connected to the driving assembly (3); The rotating shaft assembly (2) comprises a rotating shaft (21) and a driving connection member (22); the mounting portion (1101) of each cutter head (11) in the cutter head module (1) comprises a mounting hole (11011); One end of the rotating shaft (21) is mounted in the mounting hole (11011) of the mounting portion (1101) of each cutter head (11), and the other end is connected to the output shaft (31) of the driving assembly (3) via the driving connecting member (22).

12. The crushing device according to claim 11, characterized in that: The device further comprises a sealing component (4) and a bottom shell (5); the driving component (3) is located on a side of the bottom shell (5) away from the cutter head module (1); and the rotating shaft (21) passes through the bottom shell (5) and is connected to the driving component (3); The sealing assembly (4) comprises a main body (41) and a first sealing member (42); the main body (41) surrounds the rotating shaft (21) and is sealed to the rotating shaft (21); the first sealing member (42) is installed on the periphery of the main body (41); and the bottom shell (5) is sealed to the first sealing member (42).

13. The crushing device according to claim 12, characterized in that: The main body (41) has a second mounting position (412) inside, and the sealing assembly (4) further comprises a bearing (46), wherein the bearing (46) is mounted in the second mounting position (412) and surrounds and supports the rotating shaft (21); The bearing (46) comprises a first sub-bearing (461) and a second sub-bearing (462); the side wall of the rotating shaft (21) has a first groove (211); the inner side wall of the second mounting position (412) has a second groove (4121); and the interior of the main body (41) has a first step (413); The crushing device further comprises a first limiting member (6), wherein the first limiting member (6) is partially clamped in the first groove (211) to limit the first sub-bearing (461) between the first step (413) and the first groove (211); The crushing device further comprises a second limiting member (7), wherein the second limiting member (7) is partially clamped in the second groove (4121) to limit the second sub-bearing (462) between the first groove (211) and the second groove (4121).

14. The crushing device according to any one of claims 12 to 13, characterized in that: The main body (41) has an inclined surface (414) extending obliquely in a direction away from the rotating shaft (21) in a second direction; At least one of the cutter heads (11) of the cutter head module (1) comprises a fourth cutter head (114), wherein the first portion of the two cutting arms (1102) of the fourth cutter head (114) extends obliquely in a second direction away from the mounting portion (1101), and the second portion extends from the first portion in a direction away from the mounting portion (1101); The inclined portion (414) and the first portion of the cutting arm (1102) of the fourth cutting head (114) extend in the same direction.

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