High-performance dual-purpose branch wood feed grinder

Abstract

The utility model discloses a high-performance dual-purpose branch and wood feed grinder which comprises a rack, a grinding chamber mounted on the rack, a discharging bin positioned below the grinding chamber, and a grinding cutter head group mounted in the grinding chamber, the hot wheel double-cutter disc which is installed at the inner end of the main shaft and close to the side where the branch wood feeding inlet is located is used for conducting rotary cutting on fed branch wood, then the branch wood enters the smashing chamber to be smashed, and the branch wood can be discharged from a specific wood chip discharging port. When feed such as bran needs to be smashed, the upper screen plate is replaced, the wood chip discharging port is closed, and discharging is conducted from the discharging bin below the screen plate, by means of the structural design, cutting and chip making of wood strips and branches can be efficiently and smoothly processed, the smashing uniformity and cutting quality are improved, and the problems that in the prior art, due to the poor smashing uniformity, blocking is caused, efficiency is low, and quality is poor are solved.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery and equipment, in particular to a high-performance dual-purpose branch and wood feed crusher. Background Art

[0002] In agricultural work, feed processing and crushing are crucial. It can crush various raw materials such as corn, soybeans, wheat bran, hay, straw, rice stalks and other crops into particles or powders suitable for animal digestion and absorption, improve the taste and nutritional value of feed, and promote animal growth and health. The key behind this technology is to improve feed utilization, reduce feed costs, and improve agricultural production efficiency, so as to meet the growing demand for livestock breeding; in the agricultural production process, a lot of fallen branches, useless waste wood, trees and other wood will be generated, and the crushing and processing of wood branches, farms or agricultural enterprises may have a large number of branches, branches and leaves and other agricultural wastes to be processed, which is also a necessary link in agricultural work activities. Usually, these wastes can be converted into powder or small particles through crushing and processing, which is easy to handle and use. Wood branches are also one of the common raw materials for making compost. After crushing and crushing, wood branches are easier to decompose, which helps the preparation process of compost and improves the quality of compost. Wood branches can be crushed to obtain sawdust, which can be used as raw materials for biomass energy, such as biomass fuel, wood pellets, etc., and can also be used to produce paper, wood boards, etc.

[0003] Existing wood crushing equipment is usually single-function type, and uses roller crushing or cutting to crush; there are also some dual-function crushing equipment, such as China invention patent CN101786034A dual-purpose plant material chopping and pulverizing machine, which can be used for feed crushing and branch crushing, but the feeding direction is directly opposite to the rotation direction of the cutter disc, and the chopping flying knife blade is used to contact the material, that is, the feeding is all from the same entrance, and directly enters the crushing chamber after cutting. Since the feeding direction is the same as the vertical direction of the cutter disc, some materials will enter the gap between the cutter discs and cannot be cut and crushed first, resulting in strong randomness in the degree of crushing and poor uniformity in the discharging process. The screen plate type discharging is used, which is easy to cause blockage, has high demand for motor energy consumption, high tool wear rate, and low efficiency. Summary of the invention

[0004] In order to solve the above-mentioned deficiencies and defects in the prior art, the inventor has improved the design and now provides a new structural design, which can efficiently and smoothly handle the cutting and chipping of wood strips and branches, improve the uniformity of chipping and cutting quality, and solve the problems of blockage, low efficiency and poor quality caused by poor chipping uniformity in the prior art. Specifically, the present invention is implemented as follows:

[0005] A high-performance dual-purpose branch wood feed crusher includes a frame, a crushing chamber installed on the frame, a discharge bin located below the crushing chamber, and a crushing disc group installed in the crushing chamber. The crushing disc group includes:

[0006] The hot wheel double blade disc is installed on the inner end of the main shaft and close to the side where the branch wood feeding inlet is located. The outer blade disc is a thickened blade holder disc with a plurality of gear teeth on the edge, and 4-6 blade holder plates are opened on the inner side of the blade holder disc; the inner blade disc is an annular structure installed on the blade holder plate and is equipped with a plurality of toothed crushing blades;

[0007] A plurality of bottom knives with inclined surfaces, wherein a plurality of unequal-sided windows are provided on the surface of the knife holder plate, each window corresponding to a knife holder plate, and a bottom knife is installed on each knife holder plate, so that the inclined blade of the bottom knife extends obliquely to the window of the knife holder plate, so that the blade edge is stably matched with the plane of the knife holder plate;

[0008] A plurality of crushing discs, each with a plurality of teeth on its edge, are sequentially mounted on the main shaft, and a secondary shaft is installed between them;

[0009] A plurality of hammer pieces are rotatably suspended and mounted on the secondary shaft;

[0010] The inertia wheel is installed on the main shaft and placed between the double blade discs of the hot wheel and the crushing disc, or between the outer side of the crushing disc and the bearing seat.

[0011] Furthermore, the toothed crushing blade is triangular or trapezoidal in shape, and has 3-6 teeth on the side. The teeth are of the same size and evenly distributed on the inner blade disc, and the height is higher than the edge height of the inner blade disc.

[0012] Furthermore, ductile iron tooth plates are installed on the front and rear bin walls of the crushing chamber, and at least one row of transversely arranged convex teeth is installed on the ductile iron tooth plates.

[0013] Furthermore, the branch and wood feeding inlet is arranged at a corner of the side wall of the crushing chamber, presenting a downward inclined inclined channel structure, a waist-shaped hole is opened on the bottom surface of the channel, and the fixed knife is fixed on the waist-shaped hole by bolts, and the fixed knife extends inward along the inclined surface of the channel, and the blade of the fixed knife just extends into the crushing chamber, and the cutting thickness of the wood branches can be controlled by adjusting the distance between the fixed knife blade and the bottom knife blade.

[0014] Furthermore, arc-shaped slots are provided on both side walls of the crushing chamber, and the isolation plate or screen plate is designed with a corresponding arc and can be inserted into the crushing chamber along the slots; a wood chip discharge port and a discharge table are provided on the rear wall of the crushing chamber, and the upper opening of the discharge table is an arc surface structure adapted to the arc of the slot, and the end of the discharge table is connected to the wood chip discharge port, and a notch adapted to the arc surface structure is provided at one corner of the isolation plate, so that when the isolation plate is inserted into place, the notch is connected to the arc surface structure, so that the crushing chamber is connected to the wood chip discharge port, and the wood chip discharge port extends to the outside of the crushing chamber, and a movable baffle that can be hinged or forked to open and close the wood chip discharge port is provided on the outside.

[0015] Furthermore, the discharge bin is a conical structure, and the discharge door is transversely opened on the side of the bottom of the discharge bin. When the screen plate is placed at the bottom of the crushing chamber, the movable baffle is closed and the feed is discharged from the discharge bin.

[0016] Furthermore, the crushing chamber is a hinged open-cover structure, and an inertia wheel bin wall is provided inside the crushing chamber and inside the upper cover body to separate the crushing chamber. After the cover is closed, the inertia wheel is independently placed in the inertia wheel bin, and a plurality of the ductile iron tooth plates are installed in the upper cover body.

[0017] Furthermore, at least one throwing conveying plate is installed between the inner and outer ends of the crushing discs and the adjacent crushing discs. The throwing conveying plate has a U-shaped groove structure and is installed in a detachable manner. The installation position of the throwing conveying plate avoids the rotation range of the hammer.

[0018] Furthermore, a plurality of sharp teeth are arranged at the end edge of the tool holder plate, and the sharp teeth extend outward.

[0019] Furthermore, the bottom knife is in a right-angled trapezoidal structure and is provided with two waist-shaped holes. It is installed on the knife holder plate by bolts and can adjust the relative position of the blade of the bottom knife. A plug-in slot is provided at the branch and wood feeding inlet for inserting the plug-in.

[0020] The working principle of the utility model is introduced as follows: the core of the crusher is mainly a crushing disc group for crushing, and it can also crush and process tree branches and wood in conjunction with the hot wheel double blade disc. It has dual functions. When processing tree branches and wood, side feeding is used to make the wood first contact with the outer blade disc of the hot wheel double blade disc, and the bottom knife on the outer blade disc and the fixed knife at the entrance are used to quickly cut and slice the wood branches. The sliced ​​or cut pieces enter the crushing chamber from the unequal-sided window, and first come into contact with the inner blade disc of the hot wheel double blade disc. After being further crushed by the gear teeth on its edge, it is smoothly thrown into the crushing chamber in a lateral direction. For larger particles or longer branches, the toothed crushing blades on the outer knife disc further break and chop them to ensure that the materials entering the crushing chamber enter in a smaller size and volume, and then contact, collide, peel and stir with the high-speed rotating crushing disk and hammer, driving the material fragments to rotate in the crushing chamber and contact with the convex teeth on the ductile iron tooth plate installed on the chamber wall, generating a shearing effect, further chopping the materials, and as they are crushed The airflow in the room flows and finally the wood chips are thrown out from the wood chip outlet. The inertia wheel at the other end of the main shaft can generate rotational inertia under rotation, which can drive the running cutting force of the entire main shaft and improve the cutting force of the outer knife disc. When cutting wood branches, it is smooth and efficient with good cutting performance. In the crushing process, in addition to the cutting movement, the blade holder plate on the double blade disc of the Hot Wheels, which serves as the skeleton for installing the inner blade disc to provide support and fixation, can also be installed in a turning shape to serve as an impeller to generate propulsive airflow. Together with the throwing and conveying plates between the crushing discs, an overall airflow guide can be formed in the crushing chamber to drive the material to rotate, avoiding dead corner materials and accumulation at the bottom of the warehouse wall, improving crushing efficiency and discharge rate. The feeding direction of the side-feeding cutting and crushing, as well as the structural design of the double blade disc of the Hot Wheels, ensure the pre-cutting of the wood branches first, and ensure that the size difference between the chips is relatively stable and uniform when the pre-crushing discs are in contact, thereby improving the processing quality and crushing efficiency. When crushing wood branches, there is no need to use a screen plate, and the whole process is smooth, continuous, efficient and stable. When feed needs to be crushed, the isolation plate is replaced with a sieve plate, the movable baffle is closed, and the feed is added from the top entrance. The feed grain rice bran enters the crushing chamber directly from above. Under the action of the crushing disk and hammer, the crushing is completed until the particle size is smaller than the sieve hole and passes through the sieve hole into the discharge bin and is discharged from the discharge door.

[0021] Compared with the prior art, the utility model has the following beneficial technical effects:

[0022] (1) The Hot Wheels double blade structure uses multiple sets of bottom blades on the outer blade and fixed blades at the branch and wood feed inlet to achieve special cutting of branch and wood. The material is first cut into segments or slices, and then crushed into particles under the action of the gear teeth and toothed crushing blades of the inner blade. This can be regarded as pretreatment, which quickly completes the slicing and segmenting and then crushing according to a specific process. The staged treatment is highly targeted and is the basis for a homogeneous, stable and smooth crushing effect, ensuring the crushing quality of wood and wood.

[0023] (2) The bottom knife and fixed knife are specially used for cutting wood. They are highly specialized and easy to replace and maintain separately. They are compact and have low maintenance costs. They reduce the processing strength requirements of the crushing disc, extend the service life of the crushing disc and hammers, and reduce maintenance frequency and costs. Combined with the design of the inertia wheel, the smoothness and stability of the wood and branch cutting process can be ensured.

[0024] (3) Through the design of the blade holder plate, the Hot Wheels double blade disc structure can provide a certain amount of wind conveying in addition to cutting and crushing, which is the key to promoting lateral feeding. The wood particles enter the crushing chamber horizontally and contact the crushing disc more fully and evenly. In conjunction with the throwing conveyor plate, the wood fragments can fully move, collide, cut and crush in the crushing chamber, avoiding the problem of uneven crushing caused by the dead angle caused by the gap between the crushing discs, and providing continuous airflow to provide airflow power for the discharge, thereby achieving the characteristics of efficient, smooth and stable wood crushing process.

[0025] (4) The installation of isolation plates or screen plates can be realized through the replaceable plug-in design. The processing purpose can be selected according to the needs. It has a double feed inlet to distinguish the inlet and outlet of wood branches and other feeds, realize the function of multi-material processing, and expand its functional use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is the front view of the structure of the utility model high-performance dual-purpose branch wood feed crusher;

[0027] Figure 2 This is one of the three-dimensional structural diagrams of the utility model high-performance dual-purpose branch wood feed crusher;

[0028] Figure 3 This is the second structural stereogram of the utility model high-performance dual-purpose branch wood feed crusher;

[0029] Figure 4 This is a top view of the internal structure of the utility model high-performance dual-purpose branch wood feed crusher;

[0030] Figure 5 This is the front view of the cutter head assembly structure on the main shaft of the utility model;

[0031] Figure 6It is a three-dimensional diagram of the installation structure of the hot wheel double cutter disc on the main shaft of the utility model;

[0032] Figure 7 This is a three-dimensional diagram of the inertia wheel installation structure on the main shaft of the utility model;

[0033] Figure 8 This is a schematic diagram of the installation structure of the throwing conveying plate between the crushing discs of the utility model;

[0034] Fig. 9 This is a three-dimensional diagram of the structure of the crushing chamber in the utility model high-performance dual-purpose branch wood feed crusher;

[0035] Fig.10 A three-dimensional schematic diagram of a separation plate or a screen plate used in the present utility model;

[0036] Fig.11 This is an exploded view of the double blade disc structure of the wind turbine in the utility model;

[0037] Fig.12 This is a schematic diagram of the position structure of the bottom knife and the fixed knife at the branch wood feeding inlet of the utility model;

[0038] Fig.13 This is a schematic diagram of the feeding method for crushing tree branches and wood in the utility model;

[0039] Fig.14 This is a schematic diagram of a feeding method for chaff crushing in the utility model;

[0040] in:

[0041] 1 frame, 2 crushing chamber, 20 branch wood feeding inlet, 201 slotted insert, 21 ductile iron tooth plate, 22 convex teeth, 23 fixed knife, 24 slot, 25 isolation plate, 26 sieve plate, 27 wood chip discharging port, 28 discharging platform, 29 movable baffle;

[0042] 3 discharge bins, 31 discharge doors;

[0043] 4 Hot Wheels double blade discs, 401 outer blade disc, 402 inner blade disc, 403 gear teeth, 404 blade holder plate, 405 toothed crushing blade, 406 bottom blade, 407 window, 408 spike teeth, 41 main shaft, 42 crushing disc, 43 blade teeth, 44 secondary shaft, 45 hammer, 46 throwing conveyor plate;

[0044] 5. Upper cover body;

[0045] 6. Inertia wheel, 61 inertia wheel compartment wall, 62 inertia wheel compartment.

[0046] The motor and drive belt structure are not shown in the figure. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0048] Embodiment 1: A high-performance dual-purpose branch wood feed crusher, comprising a frame 1, a crushing chamber 2 installed on the frame 1 and a discharge bin 3 located below the crushing chamber 2, a crushing blade group installed in the crushing chamber 2, the frame 1 having an extended section for installing a motor, which is connected to a pulley at one end of a main shaft 41 through a motor and a pulley transmission, and the motor can drive the main shaft 41 to rotate; the discharge bin 3 is a conical structure, and the discharge port is laterally arranged at the bottom of the discharge bin 3;

[0049] The crushing disc set includes:

[0050] The hot wheel double blade disc 4 is installed on the inner end of the main shaft 41 and close to the side where the branch wood feed inlet 20 is located. The outer blade disc 401 is a thickened blade holder disc with a plurality of gear teeth 403 arranged on the edge. Four blade holder plates 404 are provided on the inner side of the blade holder disc. The blade holder plates 404 are L-shaped and welded on the inner side of the outer blade disc 401 and are evenly distributed in an axially symmetrical manner. The inner blade disc 402 is an annular structure installed on the blade holder plate 404 and is equipped with a plurality of toothed crushing blades 405. The edges of the toothed crushing blades 405 are finely serrated. A plurality of gear teeth 403 structures are also arranged on the inner and outer ring edges of the inner blade disc 402.

[0051] A plurality of bottom knives 406 with inclined surfaces, a plurality of unequal-sided windows 407 are provided on the surface of the knife holder plate, each window 407 corresponds to a knife holder plate 404, and a bottom knife 406 is installed on each knife holder plate 404, so that the inclined blade of the bottom knife 406 extends obliquely to the window 407 of the knife holder plate, so that the blade is stably matched with the plane of the knife holder plate, and after the bottom knife 406 is installed, a gap is formed between it and the window 407, and the gap is for the wood to enter after being sliced ​​or cut into sections;

[0052] A plurality of crushing discs 42, i.e., cutter discs, are provided with a plurality of blade teeth 43 on the edges of the crushing discs 42, which are sequentially mounted on the main shaft 41, and a secondary shaft 44 is installed between them; the blade teeth 43 are used to provide cutting, impacting, and crushing of materials during the rotation process; a plurality of hammer pieces 45 are rotatably suspended and mounted on the secondary shaft 44; the hammer pieces 45 rotate at high speed with the rotation, and can impact, knock, and crush the materials between the crushing discs 42;

[0053] Preferably, the toothed crushing blade 405 is triangular or trapezoidal, and has teeth on the side. There are 4 pieces of the same size and evenly distributed on the inner cutter disc 402, and the height is higher than the edge height of the inner cutter disc 402. Or the toothed crushing blade 405 is opposite to the inner and outer sides of the edge of the inner cutter disc 402, and is clamped and fixed between the inner cutter discs 402 by bolts and nuts; the height of the toothed crushing blade 405 is as close to the chamber wall as possible, and is used to cut and crush the materials near one end of the chamber wall, reducing the dead space in the crushing chamber 2;

[0054] Preferably, ductile iron tooth plates 21 are installed on the front and rear walls of the crushing chamber 2, and at least one row of transversely arranged convex teeth 22 are installed on the ductile iron tooth plates 21. The ductile iron tooth plates 21 are mainly used to cooperate with the crushing disc 42 in the crushing chamber 2 to crush the materials. The ductile iron tooth plates 21 are fixedly installed to realize the function of the fixed knife 23, and can also crush the materials thrown to the outer edge, thereby improving the crushing efficiency;

[0055] Preferably, the branch and wood feeding inlet 20 is arranged at a corner of the side wall of the crushing chamber 2, and is in a downwardly inclined inclined channel structure. A waist-shaped hole is opened on the bottom surface of the channel, and the fixed knife 23 is fixed on the waist-shaped hole by bolts. The fixed knife 23 extends inward along the inclined surface of the channel, and the blade of the fixed knife 23 just extends into the crushing chamber 2. The cutting thickness of the wood branches can be controlled by adjusting the distance between the blade of the fixed knife 23 and the blade of the bottom knife 406.

[0056] Preferably, arc-shaped slots 24 are provided on the two side walls of the crushing chamber 2, and the isolation plate 25 or the screen plate 26 is designed with a corresponding curvature and can be inserted into the crushing chamber 2 along the slot 24; a wood chip discharge port 27 and a discharge table 28 are provided on the rear wall of the crushing chamber 2, and the upper opening of the discharge table 28 is an arc surface structure adapted to the curvature of the slot 24, and the end of the discharge table 28 is connected to the wood chip discharge port 27, and a notch adapted to the arc surface structure is provided at one corner of the isolation plate 25, so that when the isolation plate 25 is inserted into place, the notch is connected to the arc surface structure, so that the crushing chamber 2 is connected to the wood chip discharge port 27, and the wood chip discharge port 27 extends to the outside of the crushing chamber 2, and a movable baffle 29 that can be hinged or forked to open and close the wood chip discharge port 27 is provided on the outside. When crushing wood branches, if it is desired to crush them into sawdust, install the isolation plate 25 and open the movable baffle 29. At this time, the crushed material will pass through the discharge platform 28 and be thrown out from the sawdust discharge port 27. The material is in the form of debris flakes. If it is to be processed into wood powder, install the sieve plate 26 and close the movable baffle 29. The wood powder will be discharged from the discharge bin 3 after passing through the sieve plate 26. The discharge bin 3 is a conical structure. The discharge door 31 is horizontally opened on the side of the bottom of the discharge bin 3. When the sieve plate 26 is placed at the bottom of the crushing chamber 2, close the movable baffle 29 and the wood powder will be discharged from the discharge bin 3. When it is necessary to process rice bran or other feed, feed from the feed port on the upper cover 5. The feed port is also equipped with a detachable baffle. When feeding is not required, use the baffle to cover and close it;

[0057] Preferably, the inertia wheel 6 is mounted on the main shaft 41, and is placed between the hot wheel double blade disc 4 and the crushing disc 42, or is installed between the outer side of the crushing disc 42 and the bearing seat; the crushing chamber 2 is a hinged open cover structure, and the crushing chamber 2 and the upper cover body 5 are both provided with an inertia wheel bin wall 61 separating the crushing chamber 2. After the cover is closed, the inertia wheel 6 is independently placed in the inertia wheel bin 62, and a plurality of ductile iron tooth plates 21 are installed in the upper cover body 5.

[0058] Preferably, at least one material-throwing conveying plate 46 is installed between the crushing discs 42 at the inner and outer ends and between the adjacent crushing discs 42 . The material-throwing conveying plate 46 has a U-shaped groove structure and is installed in a detachable manner. The installation position of the material-throwing conveying plate 46 avoids the rotation range of the hammer 45 .

[0059] Preferably, a plurality of spike teeth 408 are provided at the end edge of the tool holder plate 404, and the spike teeth 408 extend outward. These spike teeth 408 can also crush the material at the outer edge;

[0060] Preferably, the bottom knife 406 is in a right-angled trapezoidal structure and is provided with two waist-shaped holes. It is installed on the knife holder plate 404 by bolts, and the relative position of the blade of the bottom knife 406 can be adjusted. A plug slot 201 is provided at the branch wood feed inlet 20 for inserting a plug. When the branch wood is not crushed, the plug needs to be inserted into the plug slot 201 to close the branch wood feed inlet 20.

[0061] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A high-performance dual-purpose branch wood feed crusher, comprising a frame (1), a crushing chamber (2) mounted on the frame (1), and a discharge bin (3) located below the crushing chamber (2), and a crushing blade assembly mounted in the crushing chamber (2), characterized in that: The crushing disc set includes: The hot wheel double blade disc (4) is installed on the inner end of the main shaft (41) and close to the side where the branch wood feeding inlet (20) is located. The outer blade disc (401) is a thickened blade holder disc with a plurality of gear teeth (403) arranged on the edge. The inner side surface of the blade holder disc is provided with 4-6 blade holder plates (404); the inner blade disc (402) is an annular structure installed on the blade holder plate (404). A plurality of bottom knives (406) with inclined surfaces, a plurality of unequal-sided windows (407) are provided on the surface of the knife holder plate, each window (407) corresponds to a knife holder plate (404), and a bottom knife (406) is installed on each knife holder plate (404), so that the inclined blade of the bottom knife (406) extends obliquely to the window (407) of the knife holder plate, so that the blade edge is stably matched with the plane of the knife holder plate; A plurality of crushing discs (42), each of which has a plurality of blade teeth (43) on its edge, are sequentially mounted on the main shaft (41), and a secondary shaft (44) is installed between them; A plurality of hammer pieces (45) are rotatably suspended and mounted on the secondary shaft (44).

2. The high-performance dual-purpose branch wood feed crusher according to claim 1 is characterized in that: Ductile iron tooth plates (21) are installed on the front and rear walls of the crushing chamber (2), and at least one row of transversely arranged convex teeth (22) is installed on the ductile iron tooth plates (21); The inertia wheel (6) is mounted on the main shaft (41), and is placed between the hot wheel double blade disc (4) and the crushing disc (42), or is installed between the outer side of the crushing disc (42) and the bearing seat.

3. The high-performance dual-purpose branch wood feed crusher according to claim 1 is characterized in that: The branch and wood feeding inlet (20) is arranged at a corner of the side wall of the crushing chamber (2) and is in a downwardly inclined inclined channel structure. A waist-shaped hole is provided on the bottom surface of the channel. The fixed knife (23) is fixed on the waist-shaped hole by bolts. The fixed knife (23) extends inward along the inclined surface of the channel. The blade of the fixed knife (23) just extends into the crushing chamber (2). The cutting thickness of the wood and branches can be controlled by adjusting the distance between the blade of the fixed knife (23) and the blade of the bottom knife (406).

4. The high-performance dual-purpose branch wood feed crusher according to claim 1 is characterized in that: The two side walls of the grinding chamber (2) are provided with arc-shaped slots (24), and the isolation plate (25) or the screen plate (26) is designed with a corresponding arc and can be inserted into the grinding chamber (2) along the slots (24); A wood chip discharge port (27) and a discharge platform (28) are provided on the rear wall of the crushing chamber (2); the upper opening of the discharge platform (28) is a curved surface structure that matches the curvature of the slot (24); the end of the discharge platform (28) is connected to the wood chip discharge port (27); a notch that matches the curved surface structure is provided at one corner of the isolation plate (25); when the isolation plate (25) is inserted into place, the notch is connected to the curved surface structure, so that the crushing chamber (2) is connected to the wood chip discharge port (27); the wood chip discharge port (27) extends to the outside of the crushing chamber (2), and a movable baffle (29) that can be hinged or forked to open and close the wood chip discharge port (27) is provided on the outside.

5. The high-performance dual-purpose branch wood feed crusher according to claim 4 is characterized in that: The discharge bin (3) is of a conical structure, and a discharge door (31) is transversely opened on the side of the bottom of the discharge bin (3). When a sieve plate (26) is placed on the bottom of the crushing chamber (2), the movable baffle (29) is closed, and feed is discharged from the discharge bin (3).

6. The high-performance dual-purpose branch wood feed crusher according to claim 2 is characterized in that: The pulverizing chamber (2) is of a hinged open-cover structure. An inertia wheel chamber wall (61) is provided inside the pulverizing chamber (2) and inside the upper cover body (5). After the cover is closed, the inertia wheel (6) is independently placed in the inertia wheel chamber (62). A plurality of ductile iron tooth plates (21) are installed in the upper cover body (5).

7. The high-performance dual-purpose branch wood feed crusher according to claim 1 is characterized in that: At least one material throwing conveying plate (46) is installed between the crushing discs (42) at the inner and outer ends and the crushing discs (42) adjacent thereto. The material throwing conveying plate (46) is in a U-shaped groove structure and is installed in a detachable manner. The installation position of the material throwing conveying plate (46) avoids the rotation range of the hammer piece (45).

8. The high-performance dual-purpose branch wood feed crusher according to claim 1 is characterized in that: A plurality of sharp teeth (408) are arranged at the end edge of the tool holder plate (404), and the sharp teeth (408) extend outward.

9. The high-performance dual-purpose branch wood feed crusher according to claim 1 is characterized in that: The bottom knife (406) is in a right-angled trapezoidal structure and is provided with two waist-shaped holes. It is mounted on the knife holder plate (404) by bolts, and the relative position of the blade of the bottom knife (406) can be adjusted. A plug board slot (201) is provided at the branch and wood material inlet (20) for inserting the plug board.

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