CN212493331U - A branch rubbing crusher for smashing branch - Google Patents

Abstract

The utility model provides a branch rubbing crusher for smashing branch, this branch rubbing crusher include feeder hopper, casing, hydraulic system, feed mechanism, rubbing crusher structure, control system, motor, play hopper, frame. The feed inlet is put into to the branch, and pneumatic cylinder work drives the feed roller up-and-down motion and compresses tightly the branch, and control system detects the displacement information of pneumatic cylinder and then control hydraulic motor rotational speed according to displacement sensor, and hydraulic motor drive feed roller work sends into the branch of different diameters crushing roller, and the motor drives crushing roller work and smashes the branch, and the branch is discharged from the bin outlet under the action of gravity after smashing. The utility model uses the lever principle and has simple structure; the control system can automatically control the rotating speed of the hydraulic motor according to the displacement information of the hydraulic cylinder so as to adapt to branches with different diameters, effectively prevent the blocking condition from occurring, and improve the effect and efficiency of branch crushing.

Description

A branch rubbing crusher for smashing branch

Technical Field

The utility model relates to a rubbing crusher technique, concretely relates to branch rubbing crusher for smashing branch.

Background

The fruit industry occupies an important position in agricultural production in China, and not only drives economic development, but also improves the living standard of people. The area of the existing orchard in China is about 1033 × 106hm2, calculated by trimming branches 4500 kg/hm2, annual trimming branches are as high as about 4650 × 106t, and the development and utilization of the trimming branches have extremely wide prospects. Therefore, the pruning branches are cut, crushed and further processed by related equipment to become usable energy, and the sustainable development of ecological agriculture in China is greatly promoted. The crushed fruit tree branches are used for preparing organic fertilizer, and the organic fertilizer can be directly covered on the ground of an orchard to increase the organic matters of soil and reduce the water and soil loss of the soil. Compared with the domestic branch grinder, the foreign branch grinder has the advantages of large grinding diameter and large power, but has the problems of large machine type, high price and the like, and is not in line with the actual situation of China, so that the development of the branch grinder suitable for China is necessary.

Chinese patent CN 210230183U discloses a rubbing crusher for branch treatment includes chassis, first rubbing crusher, air feed case, second rubbing crusher, carousel, direction wheel, and first rubbing crusher is used for the primary crushing of branch, and the air feed case of place ahead installation provides power for disc type jet mill, and the second rubbing crusher of air feed case place ahead installation is used for regrinding, the direction wheel of carousel below installation, and the convenient device removes the regulation direction. Although the crushing efficiency is improved by twice crushing of the device, the device has a complex structure and a large machine type, and the consumption of the device is greatly improved because the branches are not subjected to classification treatment.

In view of this, a branch crusher for crushing branches is needed, which is designed to have a small size, a simple structure and high crushing efficiency, and can perform classification treatment on branches to reduce equipment consumption and reduce blockage conditions, so as to complete feeding, crushing and discharging work. Therefore, the research of the branch crusher applied to pruning the branches in the orchard is of great significance for improving the automatic operation of branch crushing and promoting the sustainable development of ecological agriculture in China.

Disclosure of Invention

To the great, the structure complicacy of branch rubbing crusher size, branch jam scheduling problem, this patent proposes a branch rubbing crusher for smashing the branch.

This patent is realized through following technical scheme: a branch crusher for crushing branches comprises a feed hopper 1, a shell 2, a hydraulic system 3, a feeding mechanism 4, a crushing mechanism 5, a control system 6, a motor 7, a discharge hopper 8 and a rack 9. The method is characterized in that: the feeding hopper 1 is welded on the shell 2 to complete the feeding of branches; the shell 2 plays a role in protecting each part and positioning and supporting the installation of the parts; the hydraulic system 4 provides power through a hydraulic element to realize the movement of the feeding mechanism 4 of the crusher; the feeding mechanism 3 realizes the movement of the feeding roller according to the track of the guide groove cut from the side surface of the shell 2 by utilizing the lever principle so as to adapt to branches with different diameters and numbers, and a labor-consuming lever is selected to realize the remote adjustment of the feeding roller; the crushing mechanism 5 is driven by a motor and is matched with a fixed knife arranged at the bottom of the shell 2, so that the branches are continuously and effectively crushed; the control system 6 controls the working parts to work by acquiring, processing and sending information such as displacement, rotating speed and the like, so that the working automation of the crusher is realized.

The hydraulic system 3 realizes the movement of the feeding mechanism 4 by providing power, and comprises a hydraulic pump 301, a hydraulic oil pipe 302, a hydraulic electromagnetic valve 303, a hydraulic cylinder 304 and a hydraulic motor 305, wherein the hydraulic pump 301 is installed on the frame 8 and is connected with the electric motor 6, the hydraulic oil pipe 302 is connected with each hydraulic element, the hydraulic electromagnetic valve 303 is installed on the feeding hopper 1, the hydraulic cylinder 304 is installed between the connecting rod piece 405 and the shell 2 to provide power for the up-and-down movement of the feeding roller 401, and the hydraulic motor 305 is installed on one side of the feeding roller 401 to drive the feeding roller 401 to rotate; the feeding mechanism 4 finishes feeding branches with different diameters and numbers, and comprises a feeding roller 401, a feeding roller shaft 402, a feeding plate 403, a supporting rod 404, a connecting rod 405 and a spring 406, wherein the feeding roller 401 is installed on the feeding roller shaft 402, the feeding roller shaft 402 is installed on the shell 2, the long end of the feeding plate 403 is installed on the feeding roller shaft 402, a hole with the length being 10mm is drilled at the position 283mm away from the long end, the supporting rod 404 is taken as a fulcrum, the feeding plate 403 moves around the fulcrum to drive the feeding roller 401 to move up and down to adapt to branches with different numbers and diameters to be fed, the supporting rod 404 is installed on the shell 2 and serves as the fulcrum of the feeding plate 403 to support, the connecting rod 405 is welded at the short end of the feeding plate 403, the feeding plate 403 synchronously moves by connecting the feeding plates 403 installed at two sides of the pulverizer, two ends of the spring 406 are respectively hung on the connecting rod 405 and the, works together with the hydraulic cylinder 304 to accelerate the up-and-down movement of the feeding roller; the branch crushing work of feeding is completed by the crushing mechanism 5, the branch crushing work comprises cutter heads 501, cutter head baffles 502, a transmission shaft 503, a belt wheel 504 and a fixed cutter 505, when the cutter heads 501 are installed, positioning holes in the cutter heads 501 are used as a reference, the adjacent cutter heads 501 are installed by clockwise rotating for 60 degrees by using the positioning holes as the reference, continuous crushing is realized through a spiral line track formed by cutters on the cutter heads 501, the two cutter head baffles 502 are respectively installed on two sides of a cutter roller formed by the cutter heads 501 to play a role in fastening and protecting the cutters, the transmission shaft 503 is installed on the shell 2 after the cutter heads 501 and the cutter head baffles 502 are installed on the transmission shaft 503, the belt wheel 504 is installed at one end of the transmission shaft 503 and is connected with the motor 6 by a v-shaped belt to provide power for the crushing mechanism 5, the fixed cutter 505 is connected with; the control system 6 finishes the information acquisition and processing work and comprises a displacement sensor 601, a first speed sensor 602 and a second speed sensor 603, wherein the displacement sensor 601 is installed at one end of the hydraulic cylinder 304 with a piston rod, the diameter of branches is judged by detecting the expansion amount of the piston rod, the rotating speed of the hydraulic motor 305 is further controlled to control the speed of the feeding roller 401 for feeding the branches, the first speed sensor 602 is installed on the feeding roller shaft 402 and detects the input rotating speed of the hydraulic motor 305, the rotating speed of the hydraulic motor 305 is further controlled and adjusted to enable the rotating speed of the feeding roller 401 to meet the requirement, and the second speed sensor 603 is installed on the transmission shaft 503 and judges the running condition of equipment by detecting the rotating speed of the crushing.

Preferably, the top of the shell is welded with a welding seam with the dimensions of length x width: 450mm is multiplied by 260mm rectangular pipe fittings for hanging springs and hydraulic cylinders.

Preferably, guide grooves with arc length of 239mm and width of 50mm are cut on two sides of the shell, so that the lifting of the feeding roller is guided, and the movement precision is guaranteed.

Preferably, two ends of a hydraulic cylinder of the hydraulic system are respectively connected between the pipe fitting on the shell and the connecting rod piece to provide power for lifting the feeding roller.

Preferably, a hydraulic motor of the hydraulic system is arranged at one end of the feeding roller shaft and provides power for the rotation of the feeding roller.

Preferably, the feeding mechanism adopts a labor-consuming lever in a lever principle, the long end of the feeding plate is 283mm in size, the supporting rod piece is used as a fulcrum, and the feeding plate moves around the fulcrum to drive the feeding roller to move up and down when the hydraulic cylinder stretches.

Preferably, the surface structure of the feeding roller of the feeding mechanism is composed of three triangular cylinders, the triangular cylinders are distributed at an angle of 45 degrees between every two adjacent triangular cylinders, the triangular cylinders positioned on two sides can stir the branches to advance and retreat when the feeding roller rotates forwards or backwards, the efficiency of the branches entering or exiting the grinder is improved, the triangular cylinders positioned in the middle are cut into saw-toothed shapes, the friction force between the branches is increased, and the branch feeding speed is improved.

Preferably, the fixed knife of the crushing mechanism is a cuboid with the size of length multiplied by width multiplied by height of 245mm multiplied by 15mm, 8 evenly distributed holes are drilled on the fixed knife, the diameter is 10mm, 8 edges with the size of 245mm of the fixed knife are used as cutting edges, after the cutting edges are worn, the installation position of the fixed knife is changed, the other edge is used as the cutting edge, and the use efficiency of the fixed knife is improved.

Preferably, the thickness of a cutter head of the crushing mechanism is 10mm, four cutters are uniformly arranged on the circumference of the cutter head, the included angles between two adjacent cutters and the tangent line of the cutter head are 45 degrees and 60 degrees respectively so as to reduce the resistance of the cutters, the included angles are 90 degrees away from each other, and positioning holes with the diameter of 5mm are drilled in the positions, corresponding to the cutters, on the cutter head.

Preferably, when the cutter discs of the crushing mechanism are installed, the positioning holes in the cutter discs are used as references, the distance between the positioning holes of every two cutter discs is 60 degrees, and the spiral line formed by the cutters ensures that continuous cutting can be realized when branches are crushed.

Preferably, the section of the blade part arranged on the transmission shaft of the crushing mechanism is a regular pentagon, and the side length is 31.5 mm.

Preferably, the displacement sensor of the control system is arranged at one end of the hydraulic cylinder with the piston rod and used for detecting the stretching amount of the hydraulic cylinder, the diameter of the branch to be fed is judged according to the stretching amount of the hydraulic cylinder, and the rotating speed of the hydraulic motor is controlled to adjust the branch feeding speed of the feeding roller

Preferably, a first speed sensor of the control system is arranged on a feeding roller shaft to detect the rotating speed of the feeding roller, and then the rotating speed of the hydraulic motor is controlled and adjusted to enable the rotating speed of the feeding roller to meet the requirement, a second speed sensor is arranged on a transmission shaft to detect the operating condition of the rotating speed judgment equipment of the crushing cutter roller, if the rotating speed of the transmission shaft is lower than 1600r/min, the equipment is blocked, and a hydraulic electromagnetic valve is controlled to enable the hydraulic motor to rotate reversely to solve the equipment blockage.

Compared with the prior art, the utility model has the following beneficial effect, the utility model discloses can be applicable to the individual family of china, and can accomplish branch feeding, smash and discharge process in proper order, and rubbing crusher has higher work efficiency. The utility model has the advantages of simple structure and small machine size, and can adjust the feeding speed in real time according to the branches with different quantities and diameters, prevent the equipment from being blocked and improve the branch crushing quality; and the cutter is installed according to fixed angle and can effectively reduce the resistance that receives, realizes the continuous crushing of branch, can greatly improve crushing efficiency.

Drawings

The patent is further described with reference to the drawings and the embodiments.

FIG. 1 is a schematic view of a branch shredder for shredding branches;

FIG. 2 is a schematic view of the feeding mechanism;

FIG. 3 is a schematic view of the shredder mechanism;

FIG. 4 is a schematic view of the construction of the cutter head;

FIG. 5 is a schematic diagram of the control system and hydraulic system;

FIG. 6 is a control flow diagram of the control system;

the following are the component numbers in the figures: the device comprises a feed hopper 1, a shell 2, a hydraulic system 3, a feeding mechanism 4, a crushing mechanism 5, an electric motor 6, a discharge hopper 7, a frame 8, a hydraulic pump 301, a hydraulic oil pipe 302, a hydraulic electromagnetic valve 303, a hydraulic cylinder 304, a hydraulic motor 305, a feed roller 401, a feed roller shaft 402, a feed plate member 403, a support rod member 404, a connecting rod member 405, a spring 406, a cutter plate 501, a cutter plate baffle 502, a transmission shaft 503, a belt wheel 504, a fixed cutter 505, a displacement sensor 601, a first speed sensor 602 and a second speed sensor 603.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

As shown in fig. 1, 2, 3, 4, 5 and 6, the branch grinder for grinding branches comprises a feed hopper 1, a shell 2, a hydraulic system 3, a feeding mechanism 4, a grinding mechanism 5, a motor 6, a discharge hopper 7 and a frame 8. The automatic feeding device comprises a hydraulic pump 301, a hydraulic oil pipe 302, a hydraulic solenoid valve 303, a hydraulic cylinder 304, a hydraulic motor 305, a feeding roller 401, a feeding roller shaft 402, a feeding plate member 403, a supporting rod member 404, a connecting rod member 405, a spring 406, a cutter disc 501, a cutter disc baffle plate 502, a transmission shaft 503, a belt wheel 504, a fixed cutter 505, a displacement sensor 601, a first speed sensor 602 and a second speed 603. The feed hopper 1 is welded on the shell 2 to complete the feeding of the branches. The shell 2 is mainly used for mounting various working components and supporting components, a rectangular rod welded on the upper portion of the shell 2 is used for mounting the hydraulic cylinder 304, and arc-shaped guide grooves cut on two sides of the shell 2 are used for limiting the lifting distance of the feeding roller 401. The hydraulic system 3 mainly provides power for the feeding mechanism 4 and controls the movement of the feeding mechanism 4, the hydraulic pump 301 is installed on the frame 8 and connected with the electric motor 6, the hydraulic oil pipe 302 is connected with each hydraulic component, the hydraulic electromagnetic valve 303 is installed on the feeding hopper 1, two ends of the hydraulic cylinder 304 are respectively connected with the shell 2 and the connecting rod piece 405 to control the lifting of the feeding roller 401, the hydraulic motor 305 is installed at one end of the feeding roller shaft 402 to control the rotating size and direction of the feeding roller 402; the feeding mechanism 4 finishes the feeding of branches with different diameters and numbers, a feeding roller shaft 402 is arranged on the shell 2, a hydraulic motor 305 is arranged on one side of the feeding roller shaft 402, the feeding roller 401 is driven to rotate by the power provided by the hydraulic motor 305, the feeding of branches is realized, the long end of the feeding plate 403 is arranged on the feeding roller shaft 402, a hole with the length of 10mm is drilled at the position 283mm away from the long end, the feeding roller 401 is lifted and lowered to adapt to feeding branches with different quantities and diameters by connecting the supporting rods 404 to the shell, the supporting rods 404 are arranged on the shell 2 and used as supporting points of the feeding plate 403, the connecting rods 405 are welded at the short ends of the feeding plate 403, the synchronous movement of the feeding plates 403 is realized by connecting the feeding plates 403 arranged at the two sides of the crusher, and the two ends of the spring 406 are respectively hung on the connecting rod 405 and a rod welded with the shell 2 and work together with the hydraulic cylinder 304; the grinding mechanism 5 finishes the grinding work of feeding branches, adjacent cutter heads 501 are installed by clockwise rotating for 60 degrees by taking a positioning hole as a reference, a spiral line formed by cutters on the cutter heads 501 is formed, the continuous grinding of the branches is realized, two cutter head baffles 502 are respectively installed on two sides of a cutter roller formed by the cutter heads 501 to play a role in fixing and protecting the cutters, a transmission shaft 503 is installed on a shell after the cutter heads 501 and the cutter head baffles 502 are installed on the transmission shaft 503, a belt wheel 504 is installed at one end of the transmission shaft 503 and is connected with a motor 6 by utilizing a v-shaped belt to provide power for the grinding mechanism 5, a fixed cutter 505 is connected with the bottom of the shell 2 by utilizing a bolt and is matched with the cutter roller formed; the control system 6 finishes the information acquisition and processing work, the displacement sensor 601 is installed at one end of the hydraulic cylinder 304 with a piston rod, the diameter of the branches is judged by detecting the elongation of the piston rod, and then the rotating speed of the hydraulic motor 305 is controlled to control the feeding speed of the feeding roller for feeding the branches. The first speed sensor 602 is arranged on the feeding roller shaft 402 and used for detecting the input rotating speed of the hydraulic motor 305 so as to control and adjust the rotating speed of the hydraulic motor to enable the rotating speed of the feeding roller to meet the requirement, and the second speed sensor 603 is arranged on the transmission shaft 503 and used for judging the running condition of the device by detecting the rotating speed of the crushing cutter roller.

The specific working process is as follows:

when the crushing machine works, firstly, the motor 6 is started, and the hydraulic system 3, the feeding mechanism 4, the crushing mechanism 5 and the control system 6 start to work; when branches enter the feed hopper 1 and contact the feed roller 401, the branches jack up the feed roller 401, the feed roller 401 rises along the guide groove on the shell 2, the feed plate 403 rotates around the support rod 404, the short end of the feed plate 403 moves downwards to drive the hydraulic cylinder 304 connected on the connection rod 405 to extend, when the gap between the feed roller 401 and the bottom of the shell 2 adapts to the diameter or the number of the branches, the hydraulic cylinder 304 stops extending, the feed roller 401 moves downwards along the guide groove of the shell 2 under the action of gravity to press the branches tightly, the hydraulic system 3 works to contract the hydraulic cylinder 304, the spring 406 simultaneously extends and contracts to drive the feed plate 403 to move around the fulcrum to drive the feed roller 401 to move downwards, the displacement sensor 601 presses the branches tightly again to detect the extension amount of the piston rod of the hydraulic cylinder 304, the rotating speed of the hydraulic motor 305 is adjusted to a fixed value according to the extension amount of the piston rod, the hydraulic motor 305 drives the, the rotating speed of the hydraulic motor 305 is compared with the rotating speed of the feeding roller shaft 401 detected by the speed sensor I602 to adjust the rotating speed of the hydraulic motor 305, the branches enter the crushing mechanism 5 more quickly due to the surface structure of the feeding roller 401, the rotation of a knife roller consisting of a cutter disc 501 in the crushing mechanism 5 is matched with the fixed knife 505 to crush the branches, and the crushed branches are discharged from the discharge hopper 7; when the equipment works, the second speed sensor 603 detects the rotating speed of the transmission shaft 503 in real time, if the rotating speed of the transmission shaft 503 is lower than a set value, the crusher is blocked, the control system 6 controls the hydraulic electromagnetic valve 303 to enable the hydraulic motor 305 to rotate reversely to drive the feeding roller 401 to rotate reversely, the equipment is enabled to recover normal operation, and the automatic adjustment of the equipment and the crushing process of branches are completed.

The top of the shell 2 is welded with a welding tool with the size of length multiplied by width: a rectangular pipe fitting of 450mm × 260mm for hooking the spring 406 and the hydraulic cylinder 304.

The shell 2 is cut with a guide groove with the arc length of 239mm and the width of 50mm, so that the lifting of the feeding roller 401 is guided, and the movement precision is ensured.

The two ends of the hydraulic cylinder 304 of the hydraulic system 3 are respectively connected between the pipe on the housing 2 and the connecting rod 405 to provide power for the lifting of the feeding roller 401.

The hydraulic motor 305 of the hydraulic system 3 is installed at one end of the feeding roller shaft 402 to provide power for the rotation of the feeding roller 401.

The feeding mechanism 4 adopts a labor-consuming lever in a lever principle, the length of the feeding plate 403 is 283mm, the supporting rod piece 404 is used as a fulcrum, and when the hydraulic cylinder 304 extends and retracts, the feeding plate 403 moves around the fulcrum to drive the feeding roller 401 to move up and down.

The surface structure of the feeding roller 401 of the feeding mechanism 4 is composed of three triangular cylinders, the triangular cylinders at two sides are distributed at an angle of 45 degrees between two adjacent triangular cylinders, the triangular cylinders at two sides can stir the branches to advance and retreat when the feeding roller 401 rotates positively or negatively, the efficiency of the branches entering or exiting the grinder is improved, the triangular cylinders at the middle are cut into saw-toothed shapes, the friction force between the triangular cylinders and the branches is increased, and the branch feeding speed is improved.

The fixed knife 505 of the crushing mechanism 5 is a cuboid with the size of length multiplied by width multiplied by height of 245mm multiplied by 15mm, 8 evenly distributed holes are punched on the fixed knife 505, the diameter is 10mm, 8 edge lengths with the size of 245mm of the fixed knife 505 are used as cutting edges, after the cutting edges are worn, the installation position of the fixed knife 505 is changed, the other edge is used as a cutting edge, and the use efficiency of the fixed knife 505 is improved.

The thickness of the cutter head 501 of the crushing mechanism 5 is 10mm, four cutters are evenly arranged on the circumference of the cutter head 501, the included angles between every two adjacent cutters and the tangent line of the cutter head 501 are 45 degrees and 60 degrees respectively, so that the resistance of the cutters is reduced, the included angles are 90 degrees away from each other, and positioning holes with the diameter of 5mm are punched in the positions, corresponding to the cutters, of the cutter head 501.

When the cutter heads 501 of the crushing mechanism 5 are installed, the positioning holes in the cutter heads 501 are used as the reference, the distance between the positioning holes of the adjacent cutter heads 501 is 60 degrees, and the formed spiral line ensures that continuous cutting can be realized when branches are crushed.

The section of the part of the transmission shaft 503 of the crushing mechanism 5, which is provided with the cutter head 501, is a regular pentagon, and the side length is 31.5 mm.

The displacement sensor 601 of the control system is arranged at one end of the hydraulic cylinder 304 with a piston rod and used for detecting the stretching amount of the hydraulic cylinder 304, and the diameter of the fed branches is judged according to the stretching amount of the hydraulic cylinder 304 so as to control the rotating speed of the hydraulic motor 305 to adjust the speed of the feeding roller 401 for feeding the branches.

A first speed sensor 602 of the control system 6 is mounted on a feeding roller shaft 402 to detect the rotating speed of the feeding roller 401, and then the rotating speed of the hydraulic motor 305 is controlled and adjusted to enable the rotating speed of the feeding roller 401 to meet the requirement, a second speed sensor 603 is mounted on a transmission shaft 503 to detect the operating condition of the device for judging the rotating speed of the crushing cutter roller, if the rotating speed of the transmission shaft 503 is lower than 1600r/min, the device is blocked, and the hydraulic motor 305 is reversely rotated to solve the device blockage by controlling a hydraulic electromagnetic valve 303.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.

Claims (8)

1. The utility model provides a branch rubbing crusher for smashing branch, its characterized in that, rubbing crusher include feeder hopper, casing, hydraulic system, feed mechanism, rubbing crusher constructs, control system, motor, play hopper, frame, wherein: the feeding hopper is welded on the shell, and branches enter the crushing machine from the feeding hopper when the crushing machine works; the shell is arranged on the frame and has the function of supporting the components of the crusher; the hydraulic system comprises a hydraulic pump, a hydraulic electromagnetic valve, a hydraulic oil pipe, a hydraulic cylinder and a hydraulic motor, wherein the hydraulic pump is arranged on the rack and provides power for the hydraulic cylinder and the hydraulic motor under the driving of the motor; the feeding mechanism comprises a feeding roller, a feeding roller shaft, feeding plates, a supporting rod piece, a connecting rod piece and a spring, wherein the feeding roller is arranged on a rack through the feeding roller shaft, branches entering from a feeding port are fed into the crushing mechanism, the two feeding plates are symmetrically arranged on two sides of the shell, the feeding roller is driven to move up and down by moving around a fulcrum during working, the supporting rod piece is arranged on the shell as the fulcrum of the feeding plates to play a supporting role, the connecting rod piece is welded at the short ends of the two feeding plates to ensure the consistent movement of the two feeding plates, the spring is hung between the connecting rod piece and the shell and works in cooperation with the hydraulic cylinder to accelerate the up-and-; the tree branch crushing mechanism comprises cutter heads, cutter head baffles, transmission shafts, belt wheels and fixed cutters, wherein when adjacent cutter heads are installed, the adjacent cutter heads are installed on the transmission shafts at an angle of 60 degrees with the positioning holes as a reference, branches are continuously crushed by spiral tracks formed by the cutters, the cutter head baffles are installed at two ends of the transmission shafts close to the cutter heads and play a role in fastening and protecting the cutter heads, the belt wheels are installed at one end of the transmission shafts, power is transmitted through a V-shaped belt to drive the crushing mechanism to work, the fixed cutters are connected inside a shell through bolts and are matched with crushing cutter rollers to complete the crushing; the control system comprises a single chip microcomputer, a relay, a displacement sensor, a first speed sensor and a second speed sensor, wherein the displacement sensor is arranged at one end, provided with a piston rod, of a hydraulic cylinder and used for detecting the stretching amount of the hydraulic cylinder, the diameter of a branch to be fed is judged according to the stretching amount of the hydraulic cylinder so as to control the rotating speed of a hydraulic motor, the first speed sensor is arranged on a feeding roller shaft to detect the rotating speed of the feeding roller so as to control and adjust the rotating speed of the hydraulic motor to enable the rotating speed of the feeding roller to meet the requirement, and the second speed sensor is arranged on a crushing; the discharge hopper is welded on the shell and plays roles in discharging and crushing branches and conducting flow.

2. A branch shredder for shredding branches as defined in claim 1, wherein: the shell is welded with a pipe fitting pressed into a rectangle, the length multiplied by the width of the size is 450mm multiplied by 260mm, and the pipe fitting is used for installing a spring and a hydraulic cylinder.

3. A branch shredder for shredding branches as defined in claim 1, wherein: a guide groove with the arc length of 239mm and the width of 50mm is cut on the shell, so that the lifting of the feeding roller is guided, and the movement precision is ensured.

4. A branch shredder for shredding branches as defined in claim 1, wherein: the motion of the feeding mechanism adopts a lever principle, the size of the long end of the feeding plate is 283mm, the supporting rod piece is used as a fulcrum, and the feeding plate moves around the fulcrum to drive the feeding roller to move up and down when the hydraulic cylinder stretches out and draws back.

5. A branch shredder for shredding branches as defined in claim 1, wherein: the surface structure of the feeding roller of the feeding mechanism is composed of three triangular cylinders, the triangular cylinders on two sides can stir the branches to advance and retreat when the feeding roller rotates forwards or backwards, the efficiency of the branches entering or exiting the pulverizer is improved, the triangular cylinders in the middle are cut into saw-toothed shapes, the friction between the triangular cylinders and the branches is increased, and the branch feeding speed is improved.

6. A branch shredder for shredding branches as defined in claim 1, wherein: the fixed cutter of the crushing mechanism is a cuboid with the size of length multiplied by width multiplied by height of 245mm multiplied by 15mm, 8 cuboid edges with the size of 245mm can be used as cutting edges after being processed, the installation position is changed after the edges are worn, the other edge is used as a cutting edge for continuous use, 8 evenly distributed holes are drilled on the fixed cutter, the diameter is 10mm, and the fixed cutter is used for being fastened and installed.

7. A branch shredder for shredding branches as defined in claim 1, wherein: the thickness of a cutter head of the crushing mechanism is 10mm, four cutters are evenly arranged on the periphery of the cutter head, included angles between two adjacent cutters and tangent lines of the cutter head are 45 degrees and 60 degrees respectively, so that resistance borne by the cutters is reduced, the radius of the center of the cutter head is 80mm, and a positioning hole with the diameter of 5mm is arranged in a position corresponding to one of the cutters with the included angle of 45 degrees.

8. A branch shredder for shredding branches as defined in claim 1, wherein: the section of the transmission shaft mounting blade part of the crushing mechanism is a regular pentagon, and the side length size is as follows: 31.5mm, when the cutter heads are installed, the positioning holes in the cutter heads are used as a reference, the adjacent cutter heads are installed by clockwise rotating for 60 degrees by using the positioning holes as a reference, and the spiral lines formed by the cutters after installation ensure the continuous smashing of the branches.

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