Crushing equipment

Abstract

The present invention discloses a crushing device, particularly a crushing device that can be folded and stored, which solves the problem that it is very difficult to make crushing devices in existing technologies more compact, small, and sophisticated due to the constraints of the support frame. The crushing device provided by the present invention includes a crushing assembly, a support assembly, and a frame assembly, wherein the crushing assembly includes a motor, a power supply chamber, a material input section, a cutter, and a material dropping section, the support assembly is connected to the crushing assembly, and the frame assembly is fixedly connected to the support assembly to support the crushing assembly, an open space is formed in front of the support assembly, and the crushing assembly can rotate in the open space around a first axis X1 passing through the support assembly, the crushing assembly has a first position in an operating state and a second position in a stored state and can be switched between the first and second positions, and in the operating state, the cutter is rotated by the motor, and material is introduced through the material input section and crushed by the cutter before being discharged from the material dropping section.

Description

[Technical Field]

[0001] The present invention relates to the field of grinding equipment, and in particular to grinding sections and grinding assemblies. [Background technology]

[0002] Conventional gardening and lawn care activities can generate large amounts of waste, for example, waste in the form of branches, sticks, twigs, and leaves from shrubs, bushes, and trees, generated from pruning and selection activities, leaf fall, etc. This waste can be very large and is not easy to dispose of effectively.

[0003] Currently, garden grinding devices have been developed for crushing garden waste, and the garden grinder can be operated to reduce the size of the material and / or facilitate further processing (e.g., using the material to form a litter layer or using the material for composting). For example, existing garden grinders typically use an internal combustion engine or a motor powered by a (e.g., 120V or 240V) power source to provide power to some type of crushing tool (e.g., a chip-type material shredder) that is used to cut and transport the material and discharge the crushed material. Generally, during operation of the crushing device, branches to be cut are introduced into the equipment from the top of the branch grinder, guided by the deflector plate, and then cut by the cutting mechanism of the branch grinder. Meanwhile, the deflector plate provides a force-receiving surface for the cutting mechanism of the branch grinder, which is convenient for the cutting mechanism to perform the cutting. The cut branches are then discharged from a conical outlet at the bottom of the branch grinder.

[0004] In the cutting tools of conventional hob-type branch crushing devices, relatively large shear forces and extrusion pressures exist when cutting branches with a relatively large diameter, but the efficiency of the extrusion pressure in breaking down the fibers of the material is relatively poor, and defects exist. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Chinese Patent Application Publication No. 114643123 Summary of the Invention [Problem to be solved by the invention]

[0006] In order to achieve the above object, the present invention provides: A crushing unit including a cutter, 1 cutter front plate, one rear cutter plate installed opposite the front cutter plate; and a plurality of tips supported and disposed between the front cutter plate and the rear cutter plate; Equipped with The cutter has a hollow structure. The following technical solution will be adopted. [Means for solving the problem]

[0007] Preferably, the cutter is a disassembly assembly.

[0008] Preferably, the cutter has a hollow cylindrical structure, or the cutter has a structure in the shape of a body of revolution.

[0009] Preferably, the tip rotates around a point of a rotation center G, and the blade portion forms a cylindrical structure with a constant diameter during the rotation process.

[0010] Preferably, the tip has a central parting line that forms an included angle of 30° to 50° with the tangent direction of rotation of the tip.

[0011] Preferably, the crushing unit further includes a fixed blade unit, and the cutter cooperates with the fixed blade unit to perform a cutting and crushing operation on the material; A contact edge and a contour edge formed thereby exist on one end face and tip of the fixed blade portion, and the distance H of the contour edge from the rotation center point G of the cutter is less than 10 mm.

[0012] Preferably, there is a gap between two adjacent said tips to allow the cut material to pass through.

[0013] Preferably, A plurality of tips are supported and installed at intervals between the front cutter plate and the rear cutter plate; The cross section set across the radial direction of the cutter is cross section VV, and the minimum distance between two adjacent tips at cross section VV is greater than 25 mm.

[0014] Preferably, the number of chips is seven or less.

[0015] Preferably, the cutter is of non-integral construction; A plurality of tips are mounted in spaced relation and removably supported relation between the front cutter plate and the rear cutter plate.

[0016] Preferably, the front cutter plate, the rear cutter plate and the tip are metal members, and the tip is formed by industrial techniques such as pressing, die casting, laser cutting or the like.

[0017] Preferably, the thickness W of the cutter is in the range of 3 mm to 8 mm.

[0018] A grinding assembly comprising a housing, a motor, a moving cutting element, a stationary cutting element and a transmission system, wherein the housing is provided with a material input passage and a cutting bore, the material input passage and the cutting bore are installed in communication with each other, the moving cutting element is installed in the cutting bore, and the moving cutting element is connected to the transmission system, so that the motor transmits torque to the moving cutting element, the stationary cutting element is attached to the housing in an adjustable manner, the moving cutting element has a bore and at least one cutting element, the cutting element is arranged to be circumferentially adjacent to the moving cutting element. The cutting elements are distributed externally, and each cutting element has at least one cutting blade used to cut the object to be cut; the inner cavity is adjacent to the cutting element and located close to the axis of the moving cutting component, and the inner cavity has a space for accommodating the object to be cut that has already been cut; the moving cutting component further has at least one spacing area formed by the cutting element, and the bottom of the object to be cut enters the inner cavity through the spacing area; and the transmission system has a first transmission assembly used to transmit the torque of the motor to the moving cutting component.

[0019] Preferably, the line connecting both ends of the cutting blade forms an included angle a with the axis of the moving cutting element, and the included angle a is less than or equal to 45°.

[0020] Preferably, the cutting element has a front cutting edge, the fixed cutting element has a fixed cutting edge cooperating with the front cutting edge, the front cutting edge is configured as an arc-shaped edge, the fixed cutting edge is configured as an arc-shaped edge corresponding to the front cutting edge, the end point of the fixed cutting edge close to the moving cutting element is a fixed cutting point D, and the fixed cutting point D is tightly joined to the front cutting edge.

[0021] Preferably, an adjustment member is further provided for adjusting the position of the fixed cutting component, the bottom of the fixed cutting component is rotatably connected to the housing, the end of the adjustment member is fixed to the fixed cutting component, the adjustment member is telescopically installed on the housing to adjust the position of the fixed cutting component, and the adjustment member is a rigid member or an elastic member.

[0022] Preferably, the moving cutting element further comprises a deflector, which blocks the cut object so that the object is discharged from the moving cutting element.

[0023] Preferably, the first transmission assembly comprises a planetary gear train and a terminal output shaft coupled to the moving cutting element for transmitting torque of the motor to the moving cutting element.

[0024] Preferably, a material feed system is further provided for feeding the object to be cut into the moving cutting element for cutting, the material feed system including a material feed element operatively mounted in the housing for controlling the spacing between the material feed element and the fixed cutting element to accommodate the passage of objects of various sizes.

[0025] Preferably, a support is further provided, the material feeding part and the moving cutting part are both fixed to the support, the support rotates around the axis of the moving cutting part, an elastic return member is provided between the support and the housing, so that the material feeding part approaches the fixed cutting part and compresses the object to be cut, the housing is further provided with an arc-shaped slide groove, the support is slidably installed in the arc-shaped slide groove to limit the rotation angle of the material feeding part.

[0026] Preferably, the transmission system further includes a second transmission assembly, which is arranged between the moving cutting component and the material feeding component, and which is installed to transmit power to a pulley. The second transmission assembly includes a first pulley connected to the moving cutting component, a second pulley connected to the material feeding component, and a belt used to transmit power, and the second transmission assembly realizes the transmission of power between the moving cutting component and the material feeding component through the first pulley, the second pulley, and the belt.

[0027] Preferably, the transmission system further includes a second transmission assembly provided between the moving cutting component and the material feeding component, the second transmission assembly including at least two sets of pulleys, the second transmission assembly including a first set of pulleys, a second set of pulleys, and a belt, and the belt is rotated to move from the first set of pulleys to the second set of pulleys, thereby realizing variable speed movement of the pulleys. [Brief explanation of the drawings]

[0028] [Figure 1] FIG. 1 is a schematic diagram of a grinding device in an embodiment of the present invention in operation. [Figure 2] FIG. 2 is a cross-sectional view 1 of the crushing device in the embodiment of the present invention in an operating state. [Figure 3] FIG. 3 is a schematic diagram 1 of the crushing device in the embodiment of the present invention in the stored state. [Figure 4] FIG. 4 is an exploded view of a crushing device according to an embodiment of the present invention. [Figure 5] FIG. 5 is a schematic diagram of a set of support assemblies and frame assemblies in an embodiment of the present invention. [Figure 6] FIG. 6 is an exploded view of the support assembly and frame assembly in an embodiment of the present invention. [Figure 7] FIG. 7 is a schematic diagram 2 of the pulverizing device in the embodiment of the present invention in operation. [Figure 8] FIG. 8 is a schematic diagram 2 of the crushing device in the embodiment of the present invention in the stored state. [Figure 9] FIG. 9 is a cross-sectional view 2 of the crushing device in the embodiment of the present invention in an operating state. [Figure 10] FIG. 10 is a schematic view of a comminution device according to an embodiment of the present invention with the hinged lid open. [Figure 11] FIG. 11 is an exploded view of the crushing unit in the embodiment of the present invention. [Figure 12] FIG. 12 is a schematic diagram of a crushing section in an embodiment of the present invention. [Figure 13] FIG. 13 is a schematic diagram of a cutting tool according to an embodiment of the present invention. [Figure 14] FIG. 14 is a schematic diagram of the structure of the grinding device in the present invention. [Figure 15] FIG. 15 is a first cross-sectional view of the grinding device according to the present invention. [Figure 16] FIG. 16 is a second cross-sectional view of the grinding device according to the present invention. [Figure 17] FIG. 17 is a third cross-sectional view of the grinding device according to the present invention. [Figure 18] FIG. 18 is a schematic diagram of the structure of the cutting system in the present invention. [Figure 19] FIG. 19 is a schematic diagram of the structure of the moving cutting element in the present invention. [Figure 20] FIG. 20 is a front view of the moving cutting component of the present invention. [Figure 21] FIG. 21 is a schematic diagram of the structure of one type of second transmission assembly in the present invention. [Figure 22] FIG. 22 is a schematic three-dimensional view of one embodiment of a milling device working head assembly. [Figure 23] 23 is a schematic side view of the cutting tool assembly in FIG. 22. FIG. [Figure 24] FIG. 24 is a schematic exploded view of the cutting tool assembly in FIG. [Figure 25] FIG. 25 is a schematic three-dimensional view of an embodiment of a fixed blade and cutting tool assembly. [Figure 26] FIG. 26 is a schematic exploded view of the fixed blade and cutting tool assembly in FIG. [Figure 27] FIG. 27 is a schematic cross-sectional view taken along line VV in FIG. [Figure 28] FIG. 28 is a schematic diagram of the cutting tool assembly in FIG. 27 when rotated counterclockwise, with the included angle C of the blade set to two states of 37° and 60° and the structure analyzed comparatively. [Figure 29] FIG. 29 is a schematic diagram of the structure after the material has been cut when C=37° in FIG. [Figure 30] FIG. 30 is a schematic diagram of the structure after the material has been cut when C=60° in FIG. [Figure 31] FIG. 31 is a schematic diagram of the fixed knife and cutting tool assembly of FIG. 27, in which the height H of the fixed knife is set to two states of 5 mm and 18 mm. [Figure 32] FIG. 32 is a schematic diagram of the material and cutting tool assembly configuration of FIG. 27, with the number of teeth being 5 and the included angle C=37°. [Figure 33]FIG. 33 is a schematic diagram of the material and cutting tool assembly configuration of FIG. 27, with the number of teeth being 8 and the included angle C=60°. DETAILED DESCRIPTION OF THE INVENTION

[0029] The present invention will be further described below in combination with the accompanying drawings and specific examples. [Example]

[0030] 1 to 3, the crushing device proposed in this embodiment of the present invention comprises a crushing assembly 100, a support assembly 200, and a frame assembly 300. The support assembly 200 is connected to the crushing assembly 100, and the frame assembly 300 is fixedly connected to the support assembly 200 to support the crushing assembly 100. An open space 201 is formed in front of the support assembly 200, and the crushing assembly 100 can freely rotate within the open space 201 along a first axis X1 passing through the support assembly 200. The crushing assembly 100 also includes a housing 110, a motor 120, a power supply chamber 130, a crushing section 190 having a cutter 140, a material feeding section 150, and a material dropping section 160. The motor 120, the power supply chamber 130, and the cutter 140 are housed within the housing 110. The power supply compartment 130 includes a battery connection port 131 and a cavity for receiving a battery pack 132, which is disposed within the power supply compartment 130 and provides power to the grinding device.

[0031] The pulverizing assembly 100 can rotate about a first axis X1 relative to the support assembly 200. When the pulverizing assembly 100 rotates upward along the first axis X1 to reach the first position, the pulverizing assembly 100 is in an operating state, with most of the pulverizing assembly 100 positioned above the first axis X1, the material feeding section 150, cutter 140, and material dropping section 160 arranged in order from top to bottom, and the motor 120 drives the cutter 140 to rotate about the second axis X2, which is substantially horizontal. Material to be crushed is fed from the material feeding section 150, cut and crushed by the rotation of the cutter 140, and then discharged from the material dropping section 160. When the grinding assembly 100 rotates downward along the first axis X1 to reach the second position, the grinding assembly 100 is in a stored state, the second axis X2 is approximately vertical, most of the grinding assembly 100 is positioned below the first axis X1, the cutter 140 is positioned below the first axis X1, and the height of the grinding apparatus is significantly reduced.

[0032] An open space 201 is formed in front of the support assembly 200, and the grinding assembly 100 can rotate within the open space 201. Therefore, the grinding assembly can be rationally configured based on the dimensions and functions of each component to make the internal configuration even more compact, thereby further reducing both the external shape and dimensions of the entire grinding device when stored.

[0033] In some other embodiments, a fixed blade is further disposed within the comminuting assembly, and the material falls between the cutter and the fixed blade, and is cut and compressed into comminuted material by the relative movement of the two.

[0034] In some other embodiments, a material removal shaft is further disposed within the comminuting assembly and is positioned adjacent to and below the cutter for use in removing comminuted material that has become wrapped around the cutter.

[0035] In some other embodiments, the motor 120 drives and rotates the cutter 140 at a reduced speed via a transmission mechanism. Preferably, a transmission mechanism with a large transmission ratio is used, and a high-speed motor can be selected and used as the motor 120. More preferably, a planetary gear train is used as the transmission mechanism.

[0036] In this embodiment, preferably, in the operating state shown in Figure 2, the longitudinal cross-sectional profile of the material dropping section 160 is wider at the top and narrower at the bottom, so that the crushed material can be collected more intensively as it falls, reducing the probability of the crushed material scattering.

[0037] In this embodiment, the vertical distance from the material discharge end 163 of the material drop section 160 to the cutter bottom surface 141 is preferably L4, which satisfies the following relationship: 50 mm≦L4≦300 mm. By controlling the vertical distance from the material discharge end 163 of the material drop section 160 to the cutter bottom surface 141 within a reasonable range, it is possible to prevent an operator from accidentally inserting their hand or tool into the cutter 140 when stirring the pulverized pieces in the material collection bag 400 or cleaning the pulverized pieces adhering to the material discharge end 163 of the material drop section 160 during operation, thereby preventing further safety risks.

[0038] In some other embodiments, the housing bottom 301 is provided with a bag clamp 162, and a storage space is formed between the housing 110 and the bag clamp 162 to store unused material collection bags 400, allowing the operator to take out and put in the material collection bags 400 at any time, thereby improving the operator's user experience. [Example]

[0039] 1 to 6, based on the above-described embodiment, in this embodiment, a frame assembly 300 includes a bottom portion 301 and a support portion 302, the support portion 302 being formed by extending upward from the bottom portion 301, and the bottom portion 301 being used to attach leg pads and / or rollers 305. The support assembly 200 is fixedly connected to the upper end of the support portion 302, and a storage space 310 open downward along the first axis X1 is formed between the bottom portion 301 and the support portion 302.

[0040] In the operating state, at least a portion of the material dropping portion 160 is disposed within the storage space 310. Specifically, a material discharge port is provided at the end of the material dropping portion 160, and the material discharge port is disposed within the storage space 310.

[0041] In the stored state, most of the grinding assembly 100 is located within the storage space 310. Specifically, the cutter 140, the material input section 150, and the material dropping section 160 are located within the storage space 310, and at least a portion of the motor 120 and at least a portion of the power supply chamber 130 are also located within the storage space 310.

[0042] Specifically, the frame assembly 300 is composed of two steel pipes formed by bending technology and a plurality of connecting reinforcement members 303, the outer shapes of the two steel pipes are mirror images, the horizontal portions of the two steel pipes and the connecting reinforcement members 303 are fixedly connected to form the bottom 301 of the frame assembly 300, the upwardly curved portions of the two steel pipes and the connecting reinforcement members 303 form the support part 302 of the frame assembly 300, the support part 302 further comprises cantilever parts at the ends of the steel pipes, and the support assembly 200 is fixedly connected to the cantilever parts of the steel pipes, whereby the frame assembly 300 supports the grinding assembly 100. In addition, the two steel pipes form an open storage space 310 below the first axis X1, with the horizontal portions of the two steel pipes roughly constituting the depth of the storage space 310, the curved upward portions of the two steel pipes roughly constituting the height of the storage space 310, and the distance between the two steel pipes roughly constituting the width of the storage space 310.

[0043] In this embodiment, preferably, in the operating state, the material collection bag 400 is detachably fastened within the storage space 310, and in the stored state, the material collection bag 400 is detached from the storage space 310, and a hook 161 is provided on the outer wall of the material dropping section 160, which is used to hang the material collection bag 400. By adopting the method of hanging the material collection bag 400 with the hook 161, the large-sized collection box 5-15 used in the existing technology is eliminated, which reduces the technical steps in production, saves production costs, lowers product prices, saves energy, and reduces emissions. At the same time, the operator no longer needs to carry and move the heavy collection box 5-15 when disposing of waste, which reduces the operator's workload and improves the operator's working comfort and product usage experience.

[0044] In some other embodiments, the frame assembly 300 may adopt a "human" frame structure.

[0045] In some other embodiments, the bottom 301 of the frame assembly 300 can be a single piece of plate material.

[0046] In some other embodiments, the support 302 may be formed by a single steel pipe, steel beam, or other structure.

[0047] The frame assembly 300 includes a base 301 and a support portion 302 extending upward from the base 301, forming a stable pyramid-like structure between them. This structure effectively supports the operation of the grinding assembly 100 and maintains its stability and reliability. An open storage space 310 is formed below the first axis X1 between the base 301 and the support portion 302. The open storage space 310 is used to store the grinding assembly 100 and allows for convenient observation of the material discharge and collection status of the material dropping portion 160 during operation. [Example]

[0048] 1 to 3, based on Example 2, in this example, in the operating state, the orthogonal projections of the motor 120 and the cutter 140 onto the bottom 301 are located within the outline of the bottom 301, so that the center of gravity of the pulverizing assembly 100 is located within the outline of the bottom 301, thereby improving the stability of the pulverizing device in the operating state and reducing the likelihood of the pulverizing device shaking due to vibrations caused by the rotation of the motor 120 and the cutter 140. In the stored state, the orthogonal projections of the motor 120 and the power supply compartment 130 onto the bottom 301 are located within the outline of the bottom 301, so that the center of gravity of the pulverizing assembly 100 is located within the outline of the bottom 301, thereby improving the stability of the pulverizing device in the stored state and reducing the likelihood of the pulverizing device tipping over when an operator moves it in the stored state. [Example]

[0049] 1 to 3, based on Example 2, in this example, a clearance cutout 304 is formed on the support part 302, and in the stored state, at least a portion of the material drop part 160 passes through the clearance cutout 304. The material drop part 160 needs to be long enough to relatively concentrate the dropped material and prevent it from scattering in all directions. By forming the clearance cutout 304 on the support part 302, at least a portion of the material drop part 160 passes through the clearance cutout 304 in the stored state, so that the relatively long material drop part 160 does not come into contact with or interfere with the support part 302 in the stored state, which affects storage performance. [Example]

[0050] 1 and 2, based on the above-described embodiment, in this embodiment, the support assembly 200 includes one side close to the first axis X1 and another side disposed opposite to the one side of the first axis X1 and remote from the first axis X1, the motor 120 is installed on the side close to the first axis X1, the power supply chamber 130 is installed on the same side as the motor 120, and the cutter 140 is installed on the side remote from the first axis X1. With this design, the power supply chamber 130 and the motor 120 are arranged on one side of the grinding assembly 100, and the material input section 150, the cutter 140, and the material dropping section 160 are arranged on the other side of the grinding assembly 100, allowing the grinding assembly 100 to have a nearly rectangular structure, thereby making the internal configuration of the grinding assembly 100 more compact and allowing the outer dimensions of the grinding assembly 100 to be further reduced and refined. Furthermore, because the weights of the battery pack 132 and the motor 120 are relatively heavy, the center of gravity of the pulverizing assembly 100 is too far from the first axis X1, which requires the structural strength of the support assembly 200 to be increased accordingly. To avoid this increase in weight and cost of the support assembly 200, the motor 120 is installed on the side close to the first axis X1, the power supply chamber 130 is installed on the same side as the motor 120, and the cutter 140 is installed on the side away from the first axis X1. This effectively shifts the center of gravity of the pulverizing assembly 100 toward the first axis X1, thereby reducing the pressure-bearing burden on the support assembly 200 and reducing the weight and production costs of the support assembly 200. [Example]

[0051] 1 to 4 , based on the above-described embodiment, in this embodiment, the support assembly 200 includes a support seat 210, which is rotatable about a first axis X1, and the grinding assembly 100 is fixedly connected to the support seat 210, allowing the grinding assembly 100 to rotate about the first axis X1 relative to the support assembly 200. The support seat 210 is compatible with various model numbers of grinding assemblies 100, and the support seat 210 installed on the support assembly 200 allows the same type of support assembly 200 to be used for grinding assemblies 100 of various specifications and model numbers, which reduces product design, research and development costs and product sales prices, and also makes it convenient to remove, repair, and replace the grinding assembly 100. [Example]

[0052] As shown in FIGS. 1 to 5, based on Example 6, in this example, the support assembly 200 includes a first rotating shaft 202 and a locking member 203, the first rotating shaft 202 is attached to the support part 302 along the direction of the first axis X1, the support seat 210 is covered by the first rotating shaft 202 and can rotate around the first axis X1, the locking member 203 is disposed on the support assembly 200, a cooperating member 211 is fixed to the support seat 210, and the cooperating member 211 is correspondingly provided with a first locking groove 2111 corresponding to the first position and a second locking groove 2112 corresponding to the second position. When the grinding assembly 100 is in the first position, the locking member 203 can pass through the first locking groove 2111, and the support seat 210 is restricted in position by the first rotating shaft 202 and the locking member 203 and cannot move, thereby locking the grinding assembly 100 in the first position. When the grinding assembly 100 is in the second position, the locking member 203 can pass through the second locking groove 2112, and the support seat 210 is restricted in position by the first rotating shaft 202 and the locking member 203 and cannot move, thereby locking the grinding assembly 100 in the second position. The design of the first rotating shaft 202 and locking member 203 in the support assembly 200, and the support seat 210 and cooperating member 211 that cooperate with them, enables the grinding assembly 100 to be stably locked in position and quickly switched between positions.

[0053] In this embodiment, preferably, the locking member 203 further includes a return element, so that the operator can rotate the grinding assembly 100 after pulling out the locking member 203, and after the grinding assembly 100 has completed switching positions, the locking member 203 can automatically return to complete the locking.

[0054] In this embodiment, preferably, an unlocking switch 212 is further disposed on the support assembly 200, and when the grinding assembly 100 is locked in the first position, at least a portion of the locking member 203 passes through the first locking groove 2111 to contact and trigger the unlocking switch 212, thereby energizing the grinding device and putting it into standby or operating state.

[0055] The placement of the unlock switch 212 on the support assembly 200 prevents the comminution assembly 100 from being accidentally activated when the comminution device is not already in the first, operational position, thereby creating a safety risk.

[0056] In this embodiment, preferably, a first braking member 213 is further disposed on the support assembly 200, and the first braking member 213 is pressed against the cooperating member 211. The first braking member 213 provides a braking force when the grinding assembly 100 rotates, offsetting part of the gravity when the grinding assembly 100 rotates downward, and reducing the labor burden on the operator when operating it.

[0057] In this embodiment, preferably, a second braking member 214 is further disposed on the support assembly 200, and the second braking member 214 is pressed into the support seat 210. The second braking member 214 provides a braking force when the grinding assembly 100 rotates, offsetting part of the gravity when the grinding assembly 100 rotates downward, and reducing the labor burden on the operator when operating it. [Example]

[0058] As shown in FIGS. 7 and 8 , the proposed crushing device according to the embodiment of the present invention includes a crushing assembly 100 and a support structure. The support structure supports the crushing assembly 100, which includes a housing 110, a motor, a power supply compartment, a cutter, a material input section 150, and a material dropping section 160. The support structure includes a support assembly 200 and a frame assembly 300. The support assembly 200 is connected to the crushing assembly 100, and the frame assembly 300 is fixedly connected to the support assembly 200 to support the crushing assembly 100. The motor, power supply compartment, and cutter are housed within the housing 110, and the power supply compartment houses a battery for providing power to the crushing device. The motor drives and rotates the cutter directly or via a transmission mechanism. Material enters the material input section, is crushed by the cutter, and is then discharged through the material dropping section 160. The crushing assembly 100 can rotate about a first axis X1 to be in a first operating position or a second storage position. The grinding assembly 100 further includes a handle 170 mounted on the housing 110. The handle 170 is provided with a grip portion 171 for holding the grinding assembly 100, and the handle 170 can rotate about a third axis X3 relative to the housing 110. The grip portion 171 is cylindrical and convenient for an operator to hold.

[0059] Additionally, a locking portion is disposed on the support assembly 200, and the locking portion can lock the grinding assembly 100 in the first position or the second position, thereby fixing the grinding assembly 100 to prevent movement relative to the support assembly 200 and the frame assembly 300 in the operating state or the storage state.

[0060] The frame assembly 300 includes a bottom 301 and a support portion 302 extending upward from the bottom 301, the support portion 302 being fixedly connected to the support assembly 200. The frame assembly 300 further includes foot pads and rollers 305. The rollers 305 rotate to reduce friction with the ground when moving the mill in a stowed state, thereby allowing the operator to move more easily and with less effort. The foot pads are used to provide support when the mill is stationary.

[0061] The handle 170 can rotate relative to the housing 110, allowing the operator to constantly grip the handle 171 and maintain the handle 171 at a nearly constant horizontal height during the process of folding and storing the grinding assembly 100. This reduces the operator's fatigue during the process of folding and storing the grinding assembly 100, thereby improving the operator's user experience. Furthermore, when the operator wants to move the grinding device in the stored state, they can do so by pulling up the handle 170. Compared to a fixed handle 170, the rotatable handle 170 can automatically adjust its position according to the operator's height and posture, reducing the operator's fatigue when moving the grinding device.

[0062] In this embodiment, the first axis X1 and the third axis X3 are preferably parallel to each other, so that the rotation direction of the handle 170 coincides with the direction in which the grinding assembly 100 rotates and folds, further simplifying the process of folding and storing the grinding assembly 100.

[0063] In this embodiment, preferably, a braking element or energy storage element is further provided within the support mechanism to offset a portion of the gravity of the grinding assembly 100 during the process of folding and storing the grinding assembly 100, thereby further reducing the effort required by the operator to fold and store the grinding assembly 100.

[0064] To reduce fatigue when the operator folds and stores the grinding assembly 100, the handle 170 must be long enough to provide a significant moment, thereby reducing the amount of force the operator must apply. In this embodiment, the distance between the third axis X3 and the center of the grip 171 in the operating state is preferably L2. In this embodiment, L2 is preferably 150 mm or greater, more preferably 250 mm or greater, and even more preferably 400 mm or greater. By providing the handle 170 with a sufficient length, a significant moment can be provided, reducing the amount of force the operator must apply when folding and storing the grinding assembly 100, thereby reducing fatigue.

[0065] 7 and 8, in one embodiment of the present invention, based on the above-described embodiment, in the operating state, the handle 170 is locked to the housing 110, and in the stored state, the handle 170 can rotate relative to the housing 110. In the operating state, the handle 170 is locked to the housing 110, preventing the handle 170 from rotating and affecting the operation of the crushing device. In the stored state, the handle 170 can rotate relative to the housing 110, thereby allowing the operator to use even less force.

[0066] A locking member 180 is provided on the grinding assembly 100, and in an activated state, the locking member 180 can lock the handle 170 to the housing 110. Specifically, the locking member 180 is raised to place the handle 170 in the locked position, and then the locking member 180 is depressed to engage the locking member 180 with the handle 170, thereby locking the handle 170 to the housing 110. When the grinding assembly 100 needs to be folded and stored, the operator raises the locking member 180 and then rotates the handle 170 upward, which releases the handle 170 from the locked position and allows it to rotate relative to the housing 110.

[0067] A control panel 111 is disposed on the grinding assembly 100 and is used to operate the grinding device, and a first relief notch 172 is provided in the handle 170, and the control panel 111 is exposed within the first relief notch 172 when the handle 170 is engaged with the housing 110. By providing the handle 170 with the first relief notch 172 that allows the control panel 111 to be exposed, it is convenient for an operator to operate the grinding device in an active state.

[0068] The grinding assembly 100 further has a feed opening 151, and a second cutout opening is provided on the handle 170, so that the feed opening 151 is exposed within the second cutout opening 173 when the handle 170 is engaged with the housing 110. By providing the handle 170 with the second cutout opening 173 that allows the feed opening 151 to be exposed, it is convenient for an operator to input material through the feed opening 151 in the operating state and grind the material.

[0069] In some other embodiments, the grinder assembly 100 is provided with a clearance slot that allows clearance for both the control panel 111 and the feed opening 151 at the same time.

[0070] As shown in Figures 7 and 8, in one embodiment of the present invention, based on the above-mentioned embodiment, a stopper is arranged on the grinding assembly 100, and the stopper can block the handle 170 and limit the angle at which the handle 170 can rotate.

[0071] Specifically, the stopper is a stopper surface 112 installed on the housing 110, and when the handle 170 rotates to a certain angle, the stopper surface 112 abuts against the handle 170, thereby restricting the handle 170 from continuing to rotate.

[0072] In some other embodiments, the stopper may be a protruding structure mounted on the housing 110 or a separate stopper member fixed to the housing 110 .

[0073] By providing a stopper to limit the rotatable angle of the handle 170, it is possible to prevent the handle 170 from rotating to an excessively large angle, which would otherwise increase fatigue of the operator during the operation.

[0074] Preferably, the angle through which the handle 170 can be rotated is ≦180°, more preferably, the angle through which the handle 170 can be rotated is ≦165°, even more preferably, the angle through which the handle 170 can be rotated is ≦150°, and even more preferably, the angle through which the handle 170 can be rotated is ≦135°. By limiting the angle through which the handle 170 can be rotated, it is possible to prevent the handle 170 from rotating excessively, thereby reducing fatigue felt by the operator during operation.

[0075] Preferably, in the stored state, when the stopper blocks the handle 170, the included angle between the handle 170 and the ground is ≦75°. More preferably, the included angle between the handle 170 and the ground is ≦60°. Even more preferably, the included angle between the handle 170 and the ground is ≦45°. By limiting the included angle between the handle 170 and the ground in the stored state, excessive rotation of the handle 170 is prevented, thereby reducing fatigue felt by the operator during operation. Furthermore, an appropriate included angle between the handle 170 and the ground makes it easier for the operator to move the crusher in the stored state.

[0076] Preferably, the roller 305 is positioned so that, in the stored state and when the stopper blocks the handle 170, a plane P1 formed by any point on the grip portion 171 and the third axis X3 intersects the location of the roller 305. The foot pad is positioned below the third axis X3. With this configuration, when an operator moves the crusher in the stored state, they can lift the handle 170 to use the roller 305 as a fulcrum to lift the end of the bottom portion 301 of the frame assembly 300 away from the roller 305. This reduces friction with the ground when the crusher is moved, thereby further facilitating the operator's movement. More preferably, the plane formed by the center of the grip portion 171 and the third axis X3 passes through the axis of the roller 305. [Example]

[0077] As shown in FIGS. 9 to 13, a crushing device proposed in one embodiment of the present invention includes a crushing assembly 100, a support assembly 200, and a frame assembly 300. The crushing assembly 100 includes a housing 110, a motor 120, a crushing section 190, a power supply chamber 130, a material input section 150, and a material dropping section 160. The motor 120 and the crushing section 190 are both installed in the housing 110. A battery socket is provided in the power supply chamber 130, and power is supplied to the crushing device by inserting a battery therein. The crushing section 190 includes a cutting tool 191 and a cutting tool housing 192. The cutting tool 191 is housed in the cutting tool housing 192. The cutting tool 191 is the cutter 140 described in the first embodiment. The motor 120 drives and rotates the cutting tool 191. Material to be crushed enters the material input section 150, is crushed by the cutting tool 191, and is discharged from the material dropping section 160 along a first material dropping path 193. The housing 110 has an openable hinged lid 114 on the side of the grinding section 190, and by opening the hinged lid 114, at least a portion of the grinding section 190 can be exposed when the hinged lid 114 is in the open position, and by closing the hinged lid 114, at least a portion of the grinding section 190 can be sealed when the hinged lid 114 is in the closed position, thereby preventing grinding particles from spilling out in all directions from the hinged lid 114.

[0078] The cutting tool 191 has a hollow cylindrical structure and includes a clamping portion and a plurality of pulverizing blades 1913 arranged along the axial direction, the pulverizing blades 1913 are fixed to the clamping portion and are distributed circumferentially around the clamping portion, and the cutting tool 191 is provided with openings 1914 along the axial direction, the positions of the openings 1914 corresponding to the positions of the hinged cover portion 114. After the material enters the crushing device and is first cut and crushed by the pulverizing blades 1913, it falls into the hollow region 1910 of the cutting tool 191, and is again cut and crushed by the pulverizing blades 1913 before falling into the material dropping portion 160 and being discharged.

[0079] Specifically, the clamping unit includes a first clamping unit 1911 and a second clamping unit 1912, and a plurality of pulverizing blades 1913 are clamped between the first clamping unit 1911 and the second clamping unit 1912. The pulverizing blades 1913 are arranged in the axial direction. The second clamping unit 1912 has a circular ring shape and has an opening 1914 at its center. The hollow region 1910 of the cutting tool 191 corresponds to the position of the opening 1914, and the position of the opening 1914 corresponds to the position of the hinged lid 114. When the hinged lid 114 is opened, at least a portion of the opening 1914 or at least a portion of the hollow region 1910 is exposed within the hinged lid 114.

[0080] By using a hollow cylindrical cutting tool 191, the crushing blade 1913 is installed axially, and the material may be cut twice during the crushing process, thereby improving the crushing efficiency of the crushing device. The position of the opening 1914 in the cutting tool 191 corresponds to the position of the hinged cover 114, so that opening the hinged cover 114 can expose at least a part of the opening 1914 or at least a part of the hollow area 1910, making it convenient for the operator to clean the crushed pieces adhering to the cutting tool 191.

[0081] In this embodiment, the pulverizing blades 1913 are preferably distributed in the circumferential direction and fixed to the clamping parts. Specifically, the pulverizing blades 1913 are clamped between the first clamping part 1911 and the second clamping part 1912 and are uniformly distributed in the circumferential direction. By distributing the pulverizing blades 1913 in the clamping parts along the circumferential direction, the rotation speed of the pulverizing blades 1913 can be maintained essentially constant, preventing the pulverized material from adhering to the slow-rotating parts of the cutting tool 191, and effectively reducing the frequency with which the operator needs to clean the cutting tool 191.

[0082] In this embodiment, preferably, at least a portion of the pulverizing blade portion 1913 extends beyond the outside of the first clamping portion 1911 and / or the second clamping portion 1912, or at least a portion of the pulverizing blade portion 1913 is close to or parallel to the outside of the first clamping portion 1911 and / or the second clamping portion 1912. By locating a portion of the structure of the pulverizing blade portion 1913 outside the clamping portions, the rotation speed of the pulverizing blade portion 1913 can be increased and the probability of the crushed pieces adhering to the pulverizing blade portion 1913 can be further reduced.

[0083] The cutting tool housing 192 has an accommodating cavity for accommodating the cutting tool 191, and the cutting tool housing 192 is formed with a material inlet 1921 and a material outlet 1922, with the material inlet 1921 being located above the cutting tool 191 and the material outlet 1922 being located below the cutting tool 191. Specifically, the cutting tool housing 192 comprises a first cutting tool housing 192.1 and a second cutting tool housing 192.2, the first cutting tool housing 192.1 and the second cutting tool housing 192.2 being combined to form a cavity used to accommodate the cutting tool 191, a material inlet 1921 corresponding to the position of the material inlet 150 being formed above the cavity, and a material outlet 1922 corresponding to the position of the material drop 160 being formed below the cavity, the motor 120 driving and rotating the first cutting tool housing 192.1 to move and rotate the cutting tool 191, and the second cutting tool housing 192.2 being provided with a relief notch 1923 exposing the hollow region 1910 of the cutting tool 191.

[0084] The presence of an accommodating cavity in cutting tool housing 192 for accommodating cutting tool 191 provides solid structural support to cutting tool 191, ensuring safety and stability when cutting tool 191 rotates at high speed. Cutting tool housing 192 is formed with a material inlet 1921 corresponding to material inlet 150 and a material outlet 1922 corresponding to material drop section 160, and material enters cutting tool 191 from material inlet 150, is crushed, and then is discharged directly from material drop section 160. This provides a smooth passage during the material inlet and outlet process, improving the efficiency of material processing during the crushing process.

[0085] The grinding device can be of a rotatable and collapsible structure, and the grinding assembly 100 can be rotated and collapsible relative to the support mechanism to reduce storage volume, and the grinding device can also be of a fixed structure.

[0086] The motor 120 can directly drive and rotate the cutting tool 191, or can drive and rotate the cutting tool 191 via a transmission mechanism. Preferably, a transmission mechanism with a large transmission ratio is used, and a high-speed motor can be selected as the motor 120. Preferably, a planetary gear train is used for transmission.

[0087] 9 to 13, in one embodiment of the present invention, based on the above-described embodiment, when hinged cover 114 is closed, material drop gap 113 is formed between hinged cover 114 and opening 1914, and crushed material can be discharged from opening 1914, pass through material drop gap 113, and then be discharged from material drop section 160. During the material crushing process, if a relatively large amount of material is added, the crushed pieces after the first crushing will fall into hollow region 1910 of cutting tool 191. However, because the crushed pieces have a low density and a relatively light mass, the load is too light. As a result, the processing speed when crushing again will be slower than the processing speed when crushing for the first time. Furthermore, if a large amount of material is added, a considerable amount of crushed pieces waiting to be crushed may accumulate in hollow region 1910 of cutting tool 191. If too much crushed debris accumulates in the hollow region 1910, the rotational load on the cutting tool 191 increases, which can reduce the crushing efficiency of the crushing device. Too much crushed debris can clog the cutting tool 191, causing the cutting tool 191 to slow down, potentially causing the motor 120 to stall, resulting in serious consequences. By forming the material drop gap 113 between the hinged lid 114 and the opening 1914, a second material drop path 1131 can be formed in the crushing assembly 100, and the rotation of the cutting tool 191 can move and stir the crushed debris in the hollow region 1910. As the crushed debris is stirred, some of the crushed debris falls through the opening 1914 into the material drop gap 113 and is then discharged through the material drop section 160.

[0088] By forming a material drop gap 113 between the hinged cover part 114 and the opening 1914, when a large amount of material is fed to be crushed, the crushed pieces that cannot be immediately crushed again are discharged through the material drop gap 113, thereby reducing the risk of the crushing efficiency of the crushing device decreasing due to too much material, reducing the risk of the cutting tool 191 clogging and the motor 120 stalling due to too much material, and improving the crushing efficiency of the crushing device.

[0089] The materials are often solid organic waste such as fallen leaves and tree branches, and if processing is delayed or affected by weather, the moisture content of the materials is often high. The crushed pieces come into contact with the hinged lid 114 as they are discharged through the second material drop path 1131, causing the crushed pieces to adhere to the hinged lid 114. If the material drop gap 113 is too small, the material drop gap 113 may quickly narrow or become clogged, which will affect the material discharge performance of the material drop gap 113. In this embodiment, the material drop gap 113 has a length L5, which is preferably L5≧10 mm, more preferably L5≧50 mm, and even more preferably L5≧100 mm. By increasing the material drop gap 113, the probability of the material drop gap 113 narrowing or becoming clogged due to crushed pieces adhering to the hinged lid portion 114 when processing materials with a high moisture content is reduced, thereby reducing the impact on the material drop gap 113's ability to discharge material.

[0090] 9 to 12, in one embodiment of the present invention, based on the above-described embodiment, the grinding assembly 100 is further provided with a protection switch 1132. When the hinged lid 114 is in a closed position, the protection switch 1132 is triggered, and when the hinged lid 114 is in an open position, the protection switch 1132 is not yet triggered.

[0091] The protection switch 1132 is arranged so that in a triggered state the grinding device is energised and in a standby or operating state, and in an untriggered state the grinding device is de-energised.

[0092] It can be understood that the protection switch 1132 may be installed in the housing 110 or in the grinding section 190.

[0093] By installing the protection switch 1132, the crushing device can finally be energized when the hinged lid 114 is in the closed position, and when the hinged lid 114 is in the open position, the crushing device is de-energized and cannot operate, thereby preventing hidden safety hazards caused by the cutting tool 191 rotating due to accidental operation when an operator is cleaning the crushing assembly 100, and also preventing crushed pieces from being ejected from the hinged lid 114 position due to the crushing device being activated when the hinged lid 114 is not yet closed.

[0094] In this embodiment, preferably, the hinged cover 114 is further provided with a fastening member 1133, which fastens the hinged cover 114 when the hinged cover 114 is closed and triggers the protection switch 1132. Specifically, the cutting tool housing 192 is provided with the protection switch 1132 and the protruding pin 1134, and the hinged cover 114 is provided with the fastening member 1133, which is a rotating knob, which is fastened after the hinged cover 114 is closed and pushes out the protruding pin 1134, thereby triggering the protection switch 1132. The fastening member 1133 fastens the hinged lid 114 and triggers the protection switch 1132, preventing the hinged lid 114 from opening due to contact with the hinged lid 114 when the crushing device is in operation, thereby preventing hidden safety hazards or the ejection of crushed pieces from the hinged lid 114 position.

[0095] To prevent the hinged lid 114 from coming into contact with the cutting tool 191 when the hinged lid 114 is open and causing damage to the cutting tool 191 or the hinged lid 114, the hinged lid 114 is preferably rotatable about an axis X4, and the vertical distance between the axis X4 and the lower end surface of the cutting tool 191 is L3, where L3 is greater than or equal to 10 mm. Specifically, the hinged lid 114 is provided with a rotating shaft, and the hinged lid 114 is connected to the grinding assembly 100 via the rotating shaft and is rotatable about the axis X4 of the rotating shaft, and the vertical distance between the rotating shaft and the lower end surface of the cutting tool 191 is L3, where L3 is greater than or equal to 10 mm. Preferably, L3 is greater than or equal to 50 mm, and preferably L3 is less than or equal to 100 mm. By providing axis X4, hinged lid 114 can be opened and closed easily, and by setting a relatively large vertical distance L3, a sufficient gap is ensured between the bottom surface of cutting tool 191 and hinged lid 114. In this way, when hinged lid 114 is open, contact between cutting tool 191 and hinged lid 114 is prevented, reducing the risk of damage to cutting tool 191 or hinged lid 114.

[0096] In order to prevent the hinged lid 114 from opening due to the vibration of the equipment when the crushing device is activated, which may result in a hidden safety hazard or fragments being ejected from the hinged lid 114 position, when the fastening member 1133 is not yet fastened and the hinged lid 114 is still in a closed state, preferably, in this embodiment, when the hinged lid 114 is in a closed position, the center of gravity of the hinged lid 114 is located outside the axis L3, and therefore the hinged lid 114 has a tendency to open outward when in the closed position. However, when the fastening member 1133 is not yet fastened, the hinged lid 114 may open automatically, and the hinged lid 114 can be closed when the fastening member 1133 is not yet fastened, which may prevent the hinged lid 114 from opening due to the vibration of the equipment, which may result in a hidden safety hazard or fragments being ejected from the hinged lid 114 position.

[0097] In some other embodiments, the hinged lid 114 is provided with a resilient mechanism that is used to automatically open the hinged lid 114 .

[0098] In one embodiment of the present invention, the difference from the previous embodiment is that when the hinged cover 114 is closed, the protection switch 1132 is not yet triggered, and when the hinged cover 114 is open, the protection switch 1132 is triggered, and when the protection switch 1132 is not yet triggered, the grinding device is energized and in a standby or operating state, and when the protection switch 1132 is triggered, the grinding device is de-energized. The protection switch 1132 can be installed in the grinding assembly 100, and when the hinged cover 114 is opened, the protection switch 1132 contacts and triggers the protection switch 1132, and when the hinged cover 114 is closed, the protection switch 1132 moves away from the protection switch 1132 and does not trigger it.

[0099] By installing the protection switch 1132, the crushing device can finally be energized when the hinged lid 114 is in the closed position, and the crushing device is de-energized and cannot operate when the hinged lid 114 is in the open position, thereby preventing hidden safety hazards caused by the cutting tool 191 rotating due to accidental operation when the operator is cleaning the crushing assembly 100, and also preventing crushed pieces from being ejected from the hinged lid 114 position due to the crushing device being activated when the hinged lid 114 is not yet closed. [Example]

[0100] 14 to 21, based on Example 1, the grinding assembly further includes a transmission system and a fixed cutting part 4-32 used to support the cutting object 4-9 and assist in cutting, and the housing 110 is provided with a material feed passage 4-11 and a cutting cavity 4-12, and the material feed passage 4-11 and the cutting cavity 4-12 are installed in communication. In this example, the material feed passage 4-11 is installed at the upper end of the cutting cavity 4-12, so that the cutting object 4-9 can easily enter the cutting cavity 4-12 under the action of gravity after entering the material feed passage 4-11, the cutter 4-3 is installed in the cutting cavity 4-12, and the cutter 4-3 is used to cut the cutting object 4-9, the motor 4-4 is used to provide power to the cutter 4-3, and the transmission system includes a first transmission assembly 4-51 used to transmit the torque of the motor 4-4 to the cutter 4-3. In this embodiment, the motor 4-4 is an electric motor, and the cutting object 4-9 is a tree branch.

[0101] As shown in FIG. 18, the moving cutting element 4-31 is connected to a transmission system to facilitate the motor 4-4 to transmit torque to the moving cutting element 4-31, and the fixed cutting element 4-32 is connected to the housing in an adjustable manner.

[0102] The moving cutting part 4-31 has a bore 4-313 and at least one cutting element 4-311, the cutting element 4-311 is distributed on the outside of the circumference of the moving cutting part 4-31, the bore 4-313 is adjacent to the cutting element 4-311 and is located close to the axis of the moving cutting part 4-31, the bore 4-313 has a space for accommodating the cutting object 4-9 that has already been cut, and the circumference of the moving cutting part 4-31 is further provided with at least one spacing area 4-312 formed by the cutting element 4-311. The cutting elements 4-311 are used to enable the moving cutting part 4-31 to cut the object to be cut 4-9, and each cutting element 4-311 has at least one cutting edge 4-3111, which is used to cut the object to be cut 4-9. The cutting elements 4-311 divide the circumference of the moving cutting part 4-31 to form spacing areas 4-312, and the setting of the spacing areas 4-312 allows the object to be cut 4-9 to pass through the cutting elements 4-311. The bottom of the object to be cut 4-9 enters the inner cavity 4-313 through the spacing area 4-312, that is, during the cutting process, part of the object to be cut 4-9 enters the inner cavity 4-313 and another part is located outside the moving cutting part 4-31, and as the moving cutting part 4-31 rotates, the cutting edge 4-3111 cuts the object to be cut 4-9, and the already cut object to be cut 4-9 is discharged from the spacing area 4-312 within the inner cavity 4-313 as the moving cutting part 4-31 rotates, thereby preventing the already cut object to be cut 4-9 from clogging the moving cutting part 4-31.

[0103] In this embodiment, as shown in Figure 19, three cutting elements 4-311 are installed on the moving cutting part 4-31, and the three cutting elements 4-311 are evenly arranged around the circumference of the moving cutting part 4-31, and adjacent cutting elements 4-311 form a spacing area 4-312 used for the cutting object 4-9 to pass through the cutting element 4-311.

[0104] As shown in Figure 20, to ensure that the moving cutting part 4-31 provides smooth cutting torque, the angle a formed by the connecting line between the two end points of the cutting blade 4-3111 and the axis of the moving cutting part 4-31 is 45° or less. In Figure 20, point E is one end point of the moving cutting part 4-31, point F is the other end point of the cutting blade 4-3111, I is the axis of the moving cutting part 4-31, and the connecting line between end points E and F and bearing I are arranged at an angle a, and angle a is 45° or less. This angle allows the cutting edge 4-3111 to gradually cut into the workpiece 4-9 during the cutting feed process, making the force change during the cutting process smoother. This method also reduces sudden changes in motor load and reduces electrical shock in the circuit, which is beneficial for protecting the power supply and can also reduce the stress shock experienced by the moving cutting part 4-31, which is beneficial for extending the service life of the cutter 4-3.

[0105] As shown in Figure 18, to achieve close cooperation between the moving cutting element 4-31 and the fixed cutting element 4-32, each cutting element 4-311 is provided with at least one cutting front cutting edge 4-3112, and the fixed cutting element 4-32 is provided with a fixed cutting edge 4-321 that cooperates with the cutting front cutting edge 4-3112. The fixed cutting edge 4-321 and the cutting front cutting edge 4-3112 are both provided with an arc-shaped structure, which is advantageous for close integration between the moving cutting element 4-31 and the fixed cutting element 4-32. The fixed cutting element 4-32 is further provided with a fixed support wire 4-322. A fixed cutting point D is formed at the point where the fixed support wire 4-322 and the fixed cutting edge 4-321 intersect, that is, the end point of the fixed cutting edge 4-321 closest to the moving cutting element 4-31 is the fixed cutting point D. In one embodiment of the present application, the fixed cutting point D is separated sufficiently closely from the cutting front cutting edge 4-3112 in the moving cutting part 4-31, so that the cutting object 4-9 can be cut more easily and fibers with relatively tough skin can also be effectively cut.

[0106] As use time increases, wear may occur on the moving cutting part 4-31 and the fixed cutting part 4-32, and the gap between them may increase. Therefore, to ensure a tight fit between the moving cutting part 4-31 and the fixed cutting part 4-32, the housing 110 is provided with an adjustment member 4-6 used to advance the fixed cutting part 4-32. The adjustment member 4-6 is used to adjust the position of the fixed cutting part 4-32 so that the moving cutting part 4-31 and the fixed cutting part 4-32 always maintain a tight fit. The adjustment member 4-6 can be manually adjusted or automatically adjusted by a preload.

[0107] In this embodiment, the bottom of the fixed cutting element 4-32 is rotatably connected to the housing 110, the end of the adjustment member 4-6 is fixed to the fixed cutting element 4-32, and the adjustment member 4-6 is telescopically installed within the housing 110 to adjust the position of the fixed cutting element 4-32. By telescopically installing the adjustment member 4-6 within the housing 110 and fixing one end of the adjustment member 4-6 to the fixed cutting element 4-32, this allows the adjustment member 4-6 to telescopically rotate the fixed cutting element 4-32, thereby changing the position of the fixed cutting element 4-32 and ensuring that the fixed cutting element 4-32 is always in close contact with the moving cutting element 4-31.

[0108] 16 and 17, the bottom of the fixed cutting element 4-32 is hinged to the housing 110, which has an adjustment hole through which the adjustment member 4-6 is fixed to the fixed cutting element 4-32 and threadedly connected to the adjustment hole. The position of the fixed cutting element 4-32 can be adjusted by rotating the adjustment member 4-6, which facilitates pushing the fixed cutting element 4-32 to closely contact the moving cutting element 4-31. This facilitates controlling the distance between the fixed cutting element 4-32 and the moving cutting element 4-31 to maintain an appropriate degree of cooperation and ensure effective cutting of materials to be cut, especially materials with tough skins. The adjustment member 4-6 can be rigid, elastic, or a combination of both.

[0109] Alternatively, in another embodiment of the present application, the adjustment member 4-6 is automatically adjusted by preload, and the adjustment member 4-6 passes through the housing 110 and is connected to the fixed cutting component 4-32. An electric push pin is installed on the adjustment member 4-6 to promote the adjustment member 4-6 to expand and contract, thereby adjusting the position of the fixed cutting component 4-32 and bringing the fixed cutting component 4-32 into close contact with the moving cutting component 4-31.

[0110] In addition, as shown in Figure 15, a deflector plate 4-8 is further provided outside the moving cutting part 4-31, which can prevent the circumferential movement of the material, and the cut material is blocked by the deflector plate 4-8 and discharged radially from the area of ​​the moving cutting part 4-31, preventing the debris formed by cutting from accumulating in the spacing area 4-312 of the moving cutting part 4-31 and affecting the cutting efficiency.

[0111] In one embodiment of the present application, a material feeding system is further provided, the material feeding system is installed in the cutting cavity 4-12, the material feeding system is used to feed the cutting object 4-9 to the cutter 4-3, the material feeding system includes a material feeding component 4-2, the material feeding component 4-2 is operatively installed in the housing 110 to control the distance between the material feeding component 4-2 and the fixed cutting component 4-32, and is adapted to allow cutting objects 4-9 of various sizes to pass through. In this embodiment, the material feeding component 4-2 is specifically slidably installed in the housing 110, the sliding trajectory is arc-shaped, and the cutting object 4-9 enters the cutter 4-3 through a passage formed by the material feeding component 4-2 and the fixed support wire 4-322.

[0112] In this embodiment, a ratchet 4-21 is provided on the outside of the material feeding part 4-2. The installation of the ratchet 4-21 is advantageous in increasing the friction force between the material feeding part 4-2 and the workpiece 4-9, so that the material feeding part 4-2 can easily transport the workpiece 4-9 into the cutter 4-3 for cutting. The material feeding system realizes rotation through a transmission system, and under the cooperative action of the ratchet 4-21, the material feeding part 4-2 can forcibly transport the workpiece 4-9 into the cutter 4-3 for cutting.

[0113] As shown in Figures 16 and 17, the cutting object 4-9 in Figure 16 and the cutting object 4-9 in Figure 17 are two different sizes of material, and in the process of feeding the material, the material feeding system can adjust the distance between the material feeding part 4-2 and the fixed cutting part 4-32 according to the different sizes of the cutting object 4-9, so that the material can pass through the passage between the material feeding part 4-2 and the fixed cutting part 4-32 and enter the cutting area.

[0114] In one embodiment of the present application, a support 4-7 is further provided, and both the material feeding component 4-2 and the moving cutting component 4-31 are fixed to the support 4-7, and the support 4-7 rotates around the axis of the moving cutting component 4-31, allowing the material feeding system to slide in the housing 110. The support 4-7 is used to support the material feeding component 4-2 and the moving cutting component 4-31, preventing the material feeding component 4-2 from interfering with the cutting action of the moving cutting component 4-31 during its movement, and the rotational action of the support 4-7 allows the material feeding component 4-2 to slide in the housing 110.

[0115] Furthermore, an elastic return member is further provided between the support 4-7 and the housing 110. The installation of the elastic return member causes the support 4-7 to always tend to move in the direction approaching the fixed cutting element 4-32. After the cutting object 4-9 enters the cutting cavity 4-12 from the feed passage 4-11, the action of the cutting object 4-9 causes the material feed element 4-2 to move in the direction away from the fixed cutting element 4-32. However, the elastic return member exerts a force on the material feed element 4-2 to move toward the fixed cutting element 4-32. As a result, the material feed element 4-2 and the fixed cutting element 4-32 tightly clamp the cutting object 4-9, and cutting objects of different sizes can be effectively compressed and transported. In addition, during this process, the motor 4-4 does not need to provide power for the sliding and return movement of the material feed element 4-2, thereby reducing energy consumption.

[0116] In another embodiment of the present application, as shown in Figures 14 and 15, the housing 110 is further provided with an arc-shaped slideway 4-13, and the support 4-7 is slidably installed in the arc-shaped slideway 4-13. In this embodiment, the end of the support 4-7 where the moving cutting element 4-31 is mounted is coaxially connected to the moving cutting element 4-31, and the end of the support 4-7 where the material feed element 4-2 is mounted is slidably installed in the arc-shaped slideway 4-13. The arc-shaped slideway 4-13 has an arc-shaped structure with the center of the circle centered on the central axis of the moving cutting element 4-31, allowing the support 4-7 to rotate around the central axis of the moving cutting element 4-31 and preventing the sliding of the material feed element 4-2 from interfering with the cutting action of the cutter 4-3. The installation of the arc-shaped slideway 4-13 also serves to limit the rotation angle of the support 4-7, which is beneficial for improving the reliability of the material feed system and the service life of the elastic return member.

[0117] The transmission system includes a first transmission assembly 4-51, which is used to transmit the torque of the motor 4-4 to the moving cutting part 4-31.

[0118] In one embodiment of the present application, the first transmission assembly 4-51 includes a planetary gear train and a terminal output shaft 4-54, which is connected to the moving cutting element 4-31 to transmit the torque of the motor 4-4 to the cutter 4-3. The planetary gear train ensures transmission efficiency, and several stages of planetary gear trains can be arranged to perform reduction transmission according to the rotation speed and torque requirements of the system. The first transmission assembly 4-51 ultimately transmits the required rotation speed and torque to the cutting element through the terminal output shaft 4-54.

[0119] Furthermore, a transmission gear 4-53 is provided between the motor 4-4 and the first transmission assembly 4-51, and the motor 4-4 transmits power to the first transmission assembly 4-51 through the transmission gear 4-53. In order to improve the transmission ratio of the transmission system, the transmission system can be configured with several stages of planetary gear trains to perform speed reduction transmission. In this embodiment, the planetary gear train includes a first stage planetary gear assembly, a second stage planetary gear assembly, and an internal gear 4-513, and a sun gear is provided between each stage of the planetary gear train. The transmission gear 4-53 is connected to one end of the output shaft of the motor, and the motor transmits power to the transmission system through the transmission gear 4-53 at one end of the output shaft. The first stage planetary gear assembly is connected to the first stage planetary gear 4-511 and the first stage planetary gear 4-513. The transmission gear 4-53 drives the first-stage planetary gear 4-511 to rotate around the internal gear 4-513, the rotation of the first-stage planetary gear 4-511 drives and rotates the first-stage planetary carrier 4-512, and the sun gear in contact with the first-stage planetary carrier 4-512 drives and rotates the second-stage planetary wheel system, and finally transmits torque to the moving cutting part 4-31 via the terminal output shaft 4-54.

[0120] In addition, in this embodiment, the first transmission assembly 4-51 is installed as a planetary gear train to transmit power, taking into consideration the transmission efficiency of the system. However, in another embodiment of the present application, even systems that are not sensitive to efficiency can implement a reduction transmission method by selecting parallel gears or worm gears, etc.

[0121] The transmission system further includes a second transmission assembly 4-52, which is installed between the moving cutting part 4-31 and the material feeding part 4-2 and is convenient for transmitting the power of the moving cutting part 4-31 to the material feeding part 4-2. The second transmission assembly 4-52 is used to transmit the power of the moving cutting part 4-31 to the material feeding part 4-2. In one embodiment of the present application, the second transmission assembly 4-52 is configured as a belt transmission, that is, the second transmission assembly 4-52 comprises a first pulley 4-521 connected to the moving cutting part 4-31, a second pulley 4-522 connected to the material feeding part 4-2, and a belt 4-523 used for power transmission, wherein the first pulley 4-521 is installed coaxially with the moving cutting part 4-31, and the second pulley 4-522 is installed coaxially with the material feeding part 4-2, and the second transmission assembly 4-52 realizes power transmission between the moving cutting part and the material feeding part 4-2 through the first pulley 4-521, the second pulley 4-522 and the belt 4-523. That is, the first pulley 4-521 cooperates with the moving cutting part 4-31 to transmit power to the belt 4-523, the belt 4-523 transmits power to the second pulley 4-522, and the second pulley 4-522 further transmits power to the material feeding part 4-2. In addition, the first pulley 4-521 and the second pulley 4-522 are both mounted on a support 4-7.

[0122] 21, another embodiment of the present application provides a method for utilizing variable speed adjustment during pulley transmission, i.e., variable speed adjustment is realized by a second transmission assembly 4-52, which includes at least two sets of pulleys, i.e., the pulleys of the second transmission assembly 4-52 can be designed as two or more sets of pulleys using a belt 4-523 of equal length, and the second transmission assembly 4-52 includes a first set of pulleys 4-524, a second set of pulleys 4-525, and a belt 4-526. The user simply moves the belt 4-526 from the first pulley set 4-524 to the second pulley set 4-525 to achieve variable speed movement of the pulleys, adjust the rotational speed of the material feed part 4-2, and thus adjust the cutting length of the cutting object 4-9. According to the needs of various usage scenarios, the user can independently adjust the size of the cut pulverized chips and adapt to various uses.

[0123] Alternatively, in another embodiment of the present application, to cut various chip sizes, the material feed components 4-2 are interchangeable and various chip sizes are achieved by cooperatively using material feed components 4-2 with gears of various diameters to accommodate different applications.

[0124] The belt transmission of the second transmission assembly 4-52 in the above embodiment is only one method for ensuring the stroke of the mating dimensions, and in another embodiment of the present application, other transmission methods such as gear transmission can also be adopted. [Example]

[0125] 21 to 24, based on the first embodiment, the crushing unit further includes a fixed blade 5-23, and the cutter 140 is a whole component that is not integrally molded. It mainly includes a front cutter plate 5-31, a rear cutter plate 5-33, and a thin, elongated tip 5-32 removably mounted between the front and rear cutter plates 5-31 and 5-33. The three components form a generally hollow cylindrical structure, and the tip 5-32 is supported and mounted by the front and rear cutter plates 5-31 and 5-33. That is, the two opposing end surfaces of the front and rear cutter plates 5-31 and 5-33 have inwardly recessed grooves that accommodate and fix the tip 5-32 at the two opposing end surfaces. As a result, the tip 5-32 is connected to the front and rear cutter plates 5-31 and 5-33 by a removable assembly method such as a plug-and-play method. This assembly method allows the tip 5-32 to be replaced, which allows the tip 5-32 to be hardened independently, facilitating production and installation, improving efficiency, and the replaceable tip 5-32 is convenient for production and after-sales service. During use, the tip 5-32 is often damaged by a hard object hitting the cutting blade, but the replaceable tip 5-32 reduces the replacement cost for the user.

[0126] As shown in Figures 25 and 26, one side of the fixed blade portion 5-23 facing the cutter 140 is composed of curved surfaces P1 and P2, and generally, curved surface P1 has an outward convex shape, and curved surface P2 has a corresponding inward concave shape.As a result, a contour edge 5-232 is formed at the intersection where curved surfaces P1 and P2 connect, and the tip 5-32 moves toward the contour edge 5-232, causing a shear-like movement, thereby cutting the plant that enters the working cavity.

[0127] As shown in Figure 27, each tip 5-32 is basically elongated and exhibits an evenly arranged distribution in the cross section VV. Specifically, the tips 5-32 are evenly distributed around the rotation center G of the cutter 140, and each tip 5-32 has one blade head and one blade tail installed opposite each other in the width direction, and the position of the blade head forms surfaces 5-32a and 5-32b on the cross section VV. As a result, a blade blade portion 5-321 is formed at the position of the blade head, and a blade handle portion is formed at the position of the blade tail.

[0128] Here, if L1 is set as the central dividing line of the surfaces 5-32a and 5-32b of the chip 5-32, i.e., a straight line passing through the center point of the blade head and the center point of the blade tail, and L2 is set as the tangential direction when the tip point of the blade portion 5-321 rotates around the rotation center point G of the cutter 140, L1 and L2 form an included angle C, which is set to 30° to 50°.

[0129] As shown in Figures 23, 24 and 27, the tip 5-32 rotates around the rotation center G, and the blade portion 5-321 forms a cylindrical structure with a constant diameter during the rotation.

[0130] Here, material 5-40 is a cylindrical rod material with a diameter of 40 mm.

[0131] Here, the speed of rotation of the cutter 140 is preferably about 48 rpm.

[0132] As shown in FIG. 28, the included angle C determines the degree of difficulty with which the tip 5-3223 cuts into the plant material 5-40.

[0133] Here, the left side of FIG. 28 is a schematic structure when C=37°, and the right side of FIG. 28 is a schematic structure when C=60°.

[0134] When C=37° and the tip 5-32 rotates 30° around the rotation center point G, the area 401 where the material 5-40 is pressed is relatively small, and the pressing force that the rotation of the cutter 140 needs to overcome is relatively small.

[0135] When C=60° and the tip 5-32 rotates 30° around the rotation center point G of the cutter 140, the area 401 where the material 5-40 is pressed is relatively large, and the pressing force that the rotation of the cutter 140 must overcome is relatively large. Under the urging of the relatively large pressing force, the material 5-40 is pressed against the curved surface P1 of the fixed blade portion 5-23, generating a relatively large friction force, making it difficult for the material 5-40 to be fed downward, so the cutter 140 needs to provide a larger torque and power output.

[0136] As shown in Figure 29, when C = 37°, the cutting marks 5-402 on the material 5-40 are relatively flat, there are no clearly compressed areas, and there are relatively many scattered cracks 5-403 on the cut surface of the material 5-40 in the figure, making the material 5-40 easier to decompose after cutting; however, it has already been revealed that the parts of the material 5-40 that are overly compressed have compressed gaps and may be difficult to process and decompose.

[0137] As shown in FIG. 30, when C=60°, there is an obvious pressed area 5-401 in the material 5-40, and the deformation of the cut-off material 5-40 is severe.

[0138] From this, it can be seen that in order to make it easier to cut the material 5-40, the angle C, which has already been made clear, is most appropriate, being in the range of 30° to 50°, preferably around 37°.

[0139] As shown in FIG. 31, the value of the vertical distance between the contour edge 5-232 of the fixed blade portion 5-23 and the rotation center point G of the cutter 140 is defined as H.

[0140] If the length of material 5-40 cut off is D, it can be seen that the larger H is, the smaller D becomes.

[0141] When the tip 5-32 cuts into the material 5-40 and starts rotating counterclockwise, the angle at which it rotates to the contour edge 5-232 of the fixed blade portion 5-23 is defined as angle B. Angle B represents the angle at which the tip 5-32 rotates while cutting the material 5-40.

[0142] The included angle formed by the line connecting the tip ends of the blade portions 5-321 of two adjacent tips 5-32 of the cutter 140 and the rotation center point G of the cutter 140 is defined as an included angle A.

[0143] Here, the number of chips 5-32 of the cutter 140 is 5, and the angle A is 72°.

[0144] When H=5mm, D is about 18mm and angle B is 78°. In this state, the feed rate of the material 5-40 for one cutting is relatively large, and since the included angle B is larger than the included angle A, the continuity of cutting the material 5-40 is guaranteed. When the previous tip 5-32 has not yet been cut, the next tip 5-32 has already entered the cutting state.

[0145] When H=18mm, D is about 12mm and angle B is 62°. In this state, the feed rate of the material 5-40 for one cutting is relatively small, and since the included angle B is smaller than the included angle A, the continuity of cutting the material 5-40 cannot be guaranteed. When the previous tip 5-32 has not yet been cut, the next tip 5-32 has not yet entered the cutting state, but the cutting force in this state is relatively small.

[0146] From this, it can be seen that, when considering the continuity of cutting material 5-40 and the feed rate, the included angle B must be greater than the included angle A. In other words, the effect of H being in the range of 2 mm to 10 mm, preferably about 5 mm, is particularly good.

[0147] As shown in Figure 32, there is a long, narrow hole-like gap between two adjacent chips 5-32, and the cross section VV of this long, narrow hole, i.e., the minimum passing distance in the radial cross section, is S, that is, the straight-line spacing distance between the head and tail of adjacent chips 5-32 is S.

[0148] Here, the number of chips 5-32 of the cutter 140 is assumed to be five.

[0149] The included angle C = 37°.

[0150] The thickness w of the chip 5-32 is set to 5 mm.

[0151] The thickness w of the chip 5-32 is set to 5 mm.

[0152] At the same time, for ease of understanding, three of the tips 5-23 are referred to as tips 5-32a, 5-32b, and 5-32c, and at this time, the material 5-40 is cut off twice, respectively referred to as cutting material 5-404a and cutting material 5-404b. The cutting material 5-404a is located in the elongated hole-like gap between tips 5-32b and 5-32c, the cutting material 5-404b is located in the elongated hole between tips 5-32c and 5-32d, and tip 5-32a is on the side of the material 5-40. As shown in the figure, the cutting material 5-404a and the cutting material 5-404b tend to detach from the cutter 140 in directions F1 and F2, respectively, and have a relatively large space margin.

[0153] As shown in FIG. 33, in contrast to FIG. 32, the number of chips 5-32 of the cutter 140 is eight.

[0154] The included angle C = 60°.

[0155] The thickness of the chip 5-32 is 5 mm.

[0156] S is approximately 15 mm.

[0157] As shown in Figure 33, material 5-40 is cut three times, resulting in cut material 5-404c, cut material 5-404d, and cut material 5-404e. Cut material 5-404c is located in the elongated hole between tip 5-32a and tip 5-32b, cut material 5-404d is located in the elongated hole between tip 5-32b and tip 5-32c, and cut material 5-404e is located in the elongated hole between tip 5-32b and tip 5-32c. As shown in the figure, cut material 5-404c, cut material 5-404d, and cut material 5-404e are difficult to detach from the elongated holes between tip 5-32, and cut material 5-404c, cut material 5-404d, and cut material 5-404e are pressed against each other as cutter 140 rotates, which makes them prone to clogging.

[0158] From this, by combining Figures 32 and 33, it can be seen that the most appropriate number of chips 5-32 is five, and that it is relatively appropriate to set the minimum passing distance S to greater than 25 mm, preferably around 30 mm.

[0159] To sum up, it has become clear that the best cutting, crushing and material discharge effect is achieved when the number of chips 5-32 is 5, the minimum passing distance S between the chips 5-32 is greater than 25 mm, and the included angle C is in the range of 30° to 50°, taking into account the cutting efficiency of the cutter 140 and the discharge conditions of the material 5-40.

[0160] In summary, the present invention utilizes specific specifications such as specific cutting tool technology, cutting tool structure and angle to improve cutting efficiency and smooth chip removal, while reducing high-load operating time.

Claims

1. A crushing device comprising: a grinding assembly including a motor, a power chamber, and a material input portion, the grinding portion of the cutter, and a material drop portion; a support assembly coupled to the grinding assembly; and a frame assembly coupled to the support assembly to support the grinding assembly; A crushing device comprising: an open space is formed in front of the support assembly, and the grinding assembly can be switched between a first position in an operating state and a second position in a stored state by rotating in the open space about a first axis X1 passing through the support assembly; In an operating state, the cutter is rotated by the motor, and material is fed into the material feed section, crushed by the cutter, and then discharged from the material drop section.

2. the frame assembly includes a bottom and a support portion extending upward from the bottom, the support assembly being fixedly connected to an end of the support portion, and a storage space open below the first axis X1 is formed between the bottom and the support portion; In an operating state, at least a portion of the material dropping portion is placed in and exposed to the storage space; 2. The crushing device according to claim 1, wherein in the stored state, a cutter is placed in the storage space.

3. 3. The crushing device according to claim 2, wherein in an operating state, the orthogonal projections of the motor and the cutter onto the bottom are located within the contour of the bottom.

4. 3. The crushing device according to claim 2, wherein a clearance notch is formed in the support portion, and in the stored state, at least a part of the material dropping portion passes through the clearance notch.

5. 3. The crushing device according to claim 2, wherein a material collection bag is removably fastened within the storage space, and in a storage state, the material collection bag is detached from the storage space, and a hook is provided at the material drop portion, and the hook is used to hang the material collection bag.

6. 2. The crushing device according to claim 1, wherein, in an operating state, the motor is disposed on a side close to the first axis X1, the power supply chamber is disposed on the same side as the motor, and the cutter is disposed on a side away from the first axis X1.

7. 2. The comminution device according to claim 1, wherein the support assembly comprises a support seat, the grinding assembly is fixedly connected to the support seat, and the support seat is rotatable about the first axis X1.

8. 2. The grinding device according to claim 1, wherein a locking member is disposed on the support assembly, the locking member being used to lock the grinding assembly when the grinding assembly is in the first position or the second position.

9. 9. The grinding device according to claim 8, further comprising an unlocking switch disposed on the support assembly, the locking member turning on the unlocking switch when the grinding assembly is locked in the first position.

10. 2. The crushing device according to claim 1, wherein L4 is a vertical distance from the material discharge end of the material dropping portion to the lower end face of the cutter, and L4 satisfies the following condition: 50 mm≦L4≦300 mm.

11. The grinding device of claim 1, wherein the grinding assembly further comprises a housing and a handle, the handle having a grip portion for gripping, and the handle is rotatable about a third axis X3 relative to the housing.

12. 12. The crushing device according to claim 11, wherein the first axis X1 is parallel to the third axis X3.

13. 12. The crushing device according to claim 11, wherein in the operating state, the handle is locked to the housing, and in the stored state, the handle can rotate relative to the housing.

14. a control panel is disposed on the grinding assembly, and the handle is provided with a relief notch through which the control panel can be exposed; 14. The crushing device according to claim 13, wherein the control panel is exposed within the recessed opening when the handle is locked to the housing.

15. A material inlet is disposed in the material inlet portion, and a relief notch is provided in the handle to expose the material inlet, 14. The crushing device according to claim 13, wherein the material inlet is exposed within the recessed opening when the handle is locked to the housing.

16. 14. The comminuting device according to claim 13, wherein the comminuting assembly is provided with a locking member, which, in an activated state, can lock the handle to the housing.

17. The grinding device according to claim 11, characterized in that a stopper is disposed on the grinding assembly, and the stopper can block the handle and limit the angle through which the handle can be rotated.

18. The crushing device of claim 17, wherein the support structure includes a roller, and in the stored state, the stopper obstructs the handle, so that a plane P1 formed by any one point on the gripping portion and the third axis intersects the roller.

19. 18. The crushing device according to claim 17, wherein in the stored state, when the stopper obstructs the handle, the included angle between the handle and the ground is 75 degrees or less.

20. 12. The crushing device according to claim 11, wherein in an operating state, the distance between the third axis X3 and the center of the gripping portion is L2, where L2 is equal to or greater than 150 mm.

21. The grinding assembly according to claim 1, further comprising a housing and a grinding section driven by a motor, the motor and the grinding section both being installed within the housing, and a hinged lid section that can be opened and closed is installed on the side of the housing adjacent to the grinding section, and the hinged lid section can be opened to expose at least a portion of the grinding section.

22. The crushing device of claim 21, characterized in that the cutter has a hollow cylindrical shape, comprises a clamping portion and a plurality of crushing blade portions fixed to the clamping portion and arranged along the axial direction, and an opening is provided in the axial direction of the cutter, and the position of the opening corresponds to the position of the hinged lid portion.

23. 23. The crushing device according to claim 22, wherein the crushing section further comprises a cutting tool housing, the cutting tool housing having an accommodating cavity for accommodating the cutter, and the cutting tool housing having a material inlet corresponding to the material inlet section and a material outlet corresponding to the material drop section.

24. 23. The crushing device according to claim 22, wherein the plurality of crushing blades are distributed along the circumferential direction of the clamping portion.

25. The crushing device of claim 22, characterized in that when the hinged lid portion is closed, a material drop gap is formed between the hinged lid portion and the opening, and the crushed material can be discharged from the opening, through the material drop gap, and then from the material drop portion.

26. The crushing device according to claim 25, wherein the material drop gap is L5, and L5≧10 mm.

27. The grinding assembly is further provided with a protection switch; When the hinged lid is closed, the protection switch is triggered; When the hinged lid is open, the protection switch has not yet been triggered; 22. The crushing device according to claim 21, wherein the protection switch is arranged such that in a triggered state the crushing device is energized and in a standby or operating state, and in a untriggered state the crushing device is de-energized.

28. The crushing device of claim 27, characterized in that the hinged lid is further provided with a fastening member, which is used to fasten the hinged lid when the hinged lid is closed, and which triggers the protection switch.

29. 23. The crushing device according to claim 22, wherein the hinged lid rotates around an axis X4, and a vertical distance between the axis X4 and the lower end surface of the cutting tool is L3, where L3 is greater than or equal to 10 mm.

30. The grinding assembly is further provided with a protection switch; When the hinged lid is closed, the protection switch has not yet been triggered; When the hinged lid is open, the protection switch is triggered; 22. The crushing device according to claim 21, wherein the protection switch is arranged so that when not yet triggered, the crushing device is energized and in a standby or operating state, and when triggered, the protection switch is arranged so that the crushing device is de-energized.

31. The crushing section includes a cutting cavity that connects the material input section with the material dropping section, the comminuting assembly further comprising a stationary cutting element and a transmission system, the cutter being a moving cutting element; 2. The crushing device of claim 1, wherein the fixed cutting element is attached to the housing in an adjustable manner, the moving cutting element has a bore and at least one cutting element, the cutting elements are distributed around the outside of the circumference of the moving cutting element, at least one cutting edge is installed on the cutting element and used to cut the object to be cut, the bore is adjacent to the cutting element and is installed close to the axis of the moving cutting element, the bore has a space for accommodating the object to be cut that has already been cut, the moving cutting element further has at least one spacing area formed by the cutting element, the bottom of the object to be cut enters the bore through the spacing area, and the transmission system includes a first transmission assembly used to transmit the torque of the motor to the moving cutting element.

32. The crushing device according to claim 31, wherein the line connecting both ends of the cutting blade forms an included angle a with the axis of the moving cutting piece, and the included angle a is less than or equal to 45°.

33. 32. The crushing device of claim 31, wherein the cutting element comprises a cutting front cutting edge, the fixed cutting part is provided with a fixed cutting edge cooperating with the cutting front cutting edge, the cutting front cutting edge is configured as a circular arc edge, the fixed cutting edge is configured as a circular arc edge corresponding to the cutting front cutting edge, and the end point of the fixed cutting edge close to the moving cutting part is a fixed cutting point D, and the fixed cutting point D is closely attached to the cutting front cutting edge.

34. 32. The crushing device of claim 31, further comprising an adjustment member used to adjust the position of the fixed cutting element, wherein the bottom of the fixed cutting element is rotatably connected to the housing, the end of the adjustment member is fixed to the fixed cutting element, the adjustment member is telescopically installed on the housing to adjust the position of the fixed cutting element, and the adjustment member is a rigid member or an elastic body.

35. 32. The crushing device according to claim 31, wherein the moving cutting element further comprises a deflector plate, which blocks the cut cutting material so that the cutting material is discharged from the moving cutting element.

36. 32. The comminution device of claim 31, wherein the first transmission assembly comprises a planetary gear train and a terminal output shaft, the terminal output shaft being coupled to the moving cutting element to transmit torque of the motor to the moving cutting element.

37. 37. The comminution device of any one of claims 31 to 36, further comprising a material feed system used to feed an object to be cut into the moving cutting element for cutting, the material feed system comprising a material feed component operatively mounted to the housing and adapted to control the spacing between the material feed component and the fixed cutting element to accommodate the passage of objects of various sizes.

38. 38. The crushing device of claim 37, further comprising a support, the material feeding element and the moving cutting element are both fixed to the support, the support rotates around the axis of the moving cutting element, and an elastic return member is provided between the support and the housing, so that the material feeding element approaches the fixed cutting element and compresses the object to be cut, and the housing is further provided with an arc-shaped sliding groove, the support is slidably installed in the arc-shaped sliding groove to limit the rotation angle of the material feeding element.

39. The crushing device of claim 37, characterized in that the transmission system further comprises a second transmission assembly, the second transmission assembly being arranged between the moving cutting component and the material feeding component, the second transmission assembly being installed to transmit power to a pulley, the second transmission assembly comprising a first pulley connected to the moving cutting component, a second pulley connected to the material feeding component, and a belt used to transmit power, and the second transmission assembly realizing the transmission of power between the moving cutting component and the material feeding component by the first pulley, the second pulley, and the belt.

40. 38. The comminuting device of claim 37, wherein the transmission system further comprises a second transmission assembly disposed between the moving cutting component and the material feeding component, the second transmission assembly comprising at least two sets of pulleys, the second transmission assembly comprising a first set of pulleys, a second set of pulleys and a belt, and the belt is rotated to move from the first set of pulleys to the second set of pulleys, thereby realizing variable speed movement of the pulleys.

41. The cutter is 1 cutter front plate, a rear cutter plate disposed opposite the front cutter plate; and a plurality of tips supported and installed between the front cutter plate and the rear cutter plate; Equipped with The crushing device according to claim 1, wherein the cutter is a separable assembly and has a hollow cylindrical structure.

42. The crushing device according to claim 41, characterized in that the tip rotates around a point of a rotation center G, and the blade portion forms a cylindrical structure with a constant diameter during the rotation process.

43. 43. Comminution device according to claim 42, characterized in that the tip has a central parting line that forms an included angle of 30° to 50° with the rotation tangent direction of the tip.

44. The crushing unit further includes a fixed blade unit, and the cutter cooperates with the fixed blade unit to perform a cutting and crushing operation on the material; 43. The crushing device according to claim 42, wherein one end face of the fixed blade portion and the tip have a contact edge and a contour edge formed thereby, and a distance H of the contour edge from a rotation center point G of the cutter is less than 10 mm.

45. 44. The comminuting device according to claim 43, wherein there is a gap between two adjacent tips to allow the cut material to pass through.

46. The cutter is a rear cutter plate disposed opposite the front cutter plate; and a plurality of spaced apart tips supported and mounted between the front cutter plate and the rear cutter plate; Equipped with The cutter is a separable assembly having a hollow cylindrical structure; The crushing device according to claim 41, wherein the cross section set across the radial direction of the cutter is a cross section V-V, and the minimum distance between two adjacent chips at the cross section V-V is greater than 25 mm.

47. 47. Comminution device according to claim 46, characterized in that the number of chips is 7 or less.

48. The cutter is of non-integral construction and comprises: 1 cutter front plate, a rear cutter plate disposed opposite the front cutter plate; and a plurality of spaced apart and removable tips supported and mounted between said front cutter plate and said rear cutter plate; 42. Comminution device according to claim 41, characterized in that it comprises:

49. The cutter is 1 cutter front plate, a rear cutter plate disposed opposite the front cutter plate; and a plurality of tips supported and installed between the front cutter plate and the rear cutter plate; Equipped with 42. The crushing device according to claim 41, wherein the front cutter plate, the rear cutter plate and the tips are metal members, and the tips are formed by industrial techniques such as pressing, die casting and laser cutting.

50. The crushing device according to claim 41, wherein the thickness W of the cutter is in the range of 3 mm to 8 mm.

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