CN110586278B - Tree segment crusher used in field and tree segment crushing method - Google Patents

Tree segment crusher used in field and tree segment crushing method Download PDF

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Publication number
CN110586278B
CN110586278B CN201910941122.3A CN201910941122A CN110586278B CN 110586278 B CN110586278 B CN 110586278B CN 201910941122 A CN201910941122 A CN 201910941122A CN 110586278 B CN110586278 B CN 110586278B
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China
Prior art keywords
hob
gear
shaft
section
crushing
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CN201910941122.3A
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Chinese (zh)
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CN110586278A (en
Inventor
丁敬平
李立君
税加坤
陈威
钟一
杨蹈宇
李卉
闵淑辉
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Central South University of Forestry and Technology
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Central South University of Forestry and Technology
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Publication of CN110586278A publication Critical patent/CN110586278A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/0084Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/142Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with two or more inter-engaging rotatable cutter assemblies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/18Knives; Mountings thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16Details
    • B02C18/24Drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C2201/00Codes relating to disintegrating devices adapted for specific materials
    • B02C2201/06Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
    • B02C2201/066Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for garden waste

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

The invention provides a field-used roll-cutting tree section crusher and a crushing method, wherein the roll-cutting tree section crusher comprises: the tree section crushing device comprises a rack, a power device, a transmission mechanism, a crushing mechanism and a feeding hopper, wherein the power device, the transmission mechanism and the crushing mechanism are arranged on the rack, and the crushing mechanism adopts two hobs which are arranged in parallel and rotate towards the middle direction to clamp the tree section in the middle; the hob adopts a disposable spiral cutter, the blades adopt a staggered complementary arrangement mode, so that the hob can reduce two thirds of hobbing force and simultaneously can hobbing the wooden pile into chips smaller than 10mm, the milling is stable, and the noise is low; the power device adopts an internal combustion engine and is suitable for field use. By adopting the invention, the diseased trees infected with pine nematodes can be ground locally in complex forest zones to control the pine nematode epidemic situation.

Description

Tree segment crusher used in field and tree segment crushing method
Technical Field
The invention belongs to the field of forestry machinery, and particularly relates to a tree section crusher and a tree section crushing method used in the field.
Background
Pine nematodes enter the xylem through the nutrient-supplemented wounds of monochamus alternatus and parasitize in the resin tract. Move while propagating in large quantities, gradually spread throughout the whole plant, and cause damage and death of parenchyma cells and epithelial cells of a resin tract, so that the plant loses water, and finally the whole plant withers. Pine trees infested with pine nematodes are the subjects of monochamus alternatus hopes for egg laying. In the next year, the monochamus alternatus hopes can carry a large amount of nematodes when emerging, and are inoculated on a healthy tree, and the cycle is repeated, so that the pine nematodes are spread.
The method is a reliable countermeasure for preventing the disease trees from spreading along the way in the carrying process, so as to cut off the spreading way of pine nematodes and achieve the purpose of preventing and treating the pine nematodes.
The diseased trees need to be cut down firstly, then cut into small sections on the spot, and finally ground on the spot to kill adult pine nematode, worm eggs, monochamus alternatus and worm eggs, so that special equipment for cutting down, cutting into sections and grinding diseased trees in wild complex areas is needed.
At present, large-scale machinery is available abroad for crushing diseased trees and stumps, such as a crusher manufactured by Germany, and a driver drives the crusher to roll and cut the diseased trees and the stumps back and forth by a front-mounted large-scale roller cutter, so that the aim of preventing and controlling pine nematodes is fulfilled. However, the large-scale machinery has overlarge volume and mass and is difficult to enter a forest complex zone.
At present, no small-sized machine for crushing diseased trees and stumps in complex forest zones in the field exists in China, the diseased trees cannot be crushed at any time and any place, and the pine nematode epidemic situation is difficult to control.
The following patents were found by search: application No. CN201720449429.8, publication No. CN206965882U, entitled: the utility model provides a waste recovery device for building site's utility model, this utility model discloses a waste recovery device for building site, including a broken section of thick bamboo, broken section of thick bamboo upside is equipped with the pan feeding funnel, the feed funnel upside is equipped with a feeding section of thick bamboo, a feeding section of thick bamboo upside left end is equipped with the feeder hopper, at the inside feed mechanism that is equipped with of a feeding section of thick bamboo, feed mechanism includes feeding screw and the screw blade of setting on the feeding screw outer wall, the feeding screw left end is connected with the motor, this utility model discloses can realize automatic feed, carry out precutting to building waste at the feeding in-process, utilize two broken gear waste materials to carry out the prebreak, building waste after the breakage is smashed by two crushing gear engagement, can screen and collect the crushed aggregates after smashing. The patent belongs to the field of construction machinery, and is not in the same field as the invention.
Application No. CN201520436414.9, publication No. CN204749009U, entitled: the utility model provides a mouth of a river material crushing apparatus's utility model, this utility model discloses a mouth of a river material crushing apparatus, it includes the frame, in be equipped with material loading mouth, a plurality of gyro wheel hobbing cutter and feed opening in proper order according to material direction of feed in the frame, a plurality of gyro wheel hobbing cutter looks parallel arrangement still is equipped with the motor in this frame, this motor with be equipped with drive mechanism between the gyro wheel hobbing cutter. The utility model relates to a plastic shaping field provides a mouth of a river material crushing apparatus to can accomplish mouth of a river material automatically and smash, it is even to smash the granule size. This patent is not in the same field as the present invention.
Application No. CN201720524522.0, publication No. CN206716176U, entitled: the utility model provides a waste recovery is with multistage reducing mechanism's utility model, this utility model discloses a waste recovery is with multistage reducing mechanism, a serial communication port, include: casing, discharge gate, conveyer belt, motor, be equipped with low-speed roller, group material roller, high-speed roller in the casing and connect drive low-speed roller pivoted motor, the low-speed roller is located group material roller and high-speed roller top and hugs closely and dodges the device, dodges the device and fixes on casing upper portion, group material roller and high-speed roller left and right sides range, group material roller and high-speed roller below are equipped with the blanking mouth, group the below of material roller and be equipped with movable extrusion piece, the below of high-speed roller is equipped with crushing sword device. The utility model relates to a waste recovery uses multi-stage reduction device. Can smash different kinds of different hardness materials, tertiary crushing, crushing efficient is fit for not unidimensional material recovery. This patent is not in the same field as the present invention.
Application No. CN201510902856.2, publication No. CN106853402A, entitled: the utility model discloses a multi-stage crushing device for waste recovery, which discloses a biomass chopping crusher, comprising a base, a main shaft assembly, a feeding mechanism, a working chamber and a power source, wherein the working chamber is arranged on the base, the main shaft assembly is arranged in the working chamber, biomass enters the working chamber from the feeding mechanism, the main shaft assembly is driven to rotate by the power source, the main shaft assembly comprises a main shaft, a cutter head assembly, a hammer sheet assembly, a cutter head transmission mechanism and a hammer sheet transmission mechanism, wherein the main shaft comprises an inner shaft sleeve and an outer shaft sleeve, the cutter head transmission mechanism and the hammer sheet transmission mechanism are respectively connected with different shaft sleeves of the main shaft, the cutter head assembly and the hammer sheet assembly are arranged on different shaft sleeves of the main shaft, the cutter head assembly is driven to rotate by the cutter head transmission mechanism, the hammer sheet assembly is driven to rotate by the hammer sheet transmission mechanism, the cutter disc assembly is provided with a chopping cutter disc, and the hammer sheet assembly is provided with a crushing hammer sheet. The patent is mainly used for crushing biomass such as straws, wheat straws and rice straws, and can not be used for crushing tree sections with larger hardness.
Application No. CN201510180776.0, publication No. CN104785337A, entitled: the invention discloses a two-stage adjustable branch grinder, which consists of a prime motor, a coupling, a speed reducer, an upper box cover, a middle box body, a lower box base, a key, a gear, a rolling bearing, a cutter shaft, a cutter disc, a locking nut, an end cover, an adjusting nut, an adjusting shaft, a bolt, a connecting plate and the like, wherein the lower box base is arranged on a foundation through the bolt, and a first-stage cutter shaft and a second-stage cutter shaft are supported by the rolling bearing; the middle box body and the upper box cover are respectively arranged on the lower box base and the middle box body through positioning pins and fastening bolts, and the upper box cover, the middle box body and the lower box base are fastened together by a plurality of bolts in pairs. When the branches with the diameter of less than 50mm are crushed, a second-stage cutter shaft is adopted for direct crushing, and the first-stage cutter shaft only plays a role in feeding the branches; when the diameter of the crushed branches exceeds 50mm, the cutter teeth on the first-stage cutter shaft can preliminarily crush the branches and have the feeding function; the damaged branches are continuously fed and continuously crushed by the second-stage cutter shaft. This patent utilizes the preceding cutting edge of sword tooth and controls the terminal surface and cut and extrude, mainly used smash the not big branch of diameter.
Disclosure of Invention
The invention aims to provide a tree section crusher and a tree section crushing method used in the field, aiming at the current situation that no mechanical equipment suitable for crushing diseased trees in the field exists at present, and the diseased trees infected with pine nematodes are crushed on the spot to control the epidemic situation of the pine nematodes.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a tree section shredder for field use comprising: frame, power device, drive mechanism, rubbing crusher constructs and feeder hopper, power device, drive mechanism and rubbing crusher construct and install in the frame, drive mechanism transmits power device's drive power for rubbing crusher structure, the feeder hopper is installed rubbing crusher constructs last, rubbing crusher constructs including: and the first hob and the second hob which are arranged in parallel and rotate reversely. And (4) rolling and cutting the tree sections to be crushed from two sides by using two rolling cutters reversely rotating towards the middle.
Further, the shredding mechanism further comprises: the driving shaft and the driven shaft are parallelly and rotatably arranged in the shell; key grooves are formed in the outer peripheral surfaces of the driving shaft and the driven shaft, shaft holes are formed in the cylindrical centers of the first hob and the second hob, key grooves are formed in the inner circumference of the shaft holes, shaft holes are formed in the first gear and the second gear, and key grooves are formed in the inner circumference of the shaft holes; the hob I and the gear I are installed on the driving shaft, and the hob I and the gear I rotate along with the driving shaft through the key block; the second hob and the second gear are installed on the driven shaft and rotate along with the driven shaft through the key block, and the first gear is meshed with the second gear. The synchronous reverse rotation of the hob I and the hob II is ensured.
Further, hobbing cutter one and hobbing cutter two are disposable hobbing cutter, include: the cylindrical hobbing cutter body the cylindrical surface of hobbing cutter body is provided with the blade base member, is provided with detachable blade on the blade base member be provided with the chip groove between the blade base member hobbing cutter body axis is provided with the shaft hole. The blade of the disposable hob can be detached and replaced, so that the cost is reduced.
Further, the blade base member reaches the chip groove is the helical shape, and is a plurality of the blade is the spiral interval and sets up on the blade base member, install adjacent two rows of blades on blade base member surface adopt the staggered phase to mend the arrangement mode, can reduce two-thirds hobbing force, can roll the stake simultaneously and become the piece that is less than 10mm, mill steadily, the noise is low.
Furthermore, the helix angle of the blade base body (103) and the chip grooves (104) is 25-36 degrees, and the hob rolling cutting efficiency of the helix angle is high.
The transmission mechanism is belt transmission and comprises a driving wheel arranged on the power device, a driven wheel arranged on the driving shaft and a transmission belt wound on the periphery of the driving wheel and the driven wheel. The belt transmission has simple structure and low cost.
Further, the frame also comprises a height adjusting device arranged on the frame support legs so as to be suitable for the field complicated uneven terrain.
Further, the height adjusting device includes: the supporting leg comprises a fixed section, a movable section and a connecting part, wherein the fixed section is fixed below the frame and used for supporting the frame, and the movable section is detachably connected with the fixed section through the connecting part and used for adjusting the height of the supporting leg.
Furthermore, the fixing section is an angle steel, and at least two bolt holes are formed in the wing edge of the angle steel along the length direction; the movable joint is an angle steel, and at least two bolt holes are formed in the wing edge of the angle steel along the length direction; the connecting part is a bolt assembly; and overlapping the movable joint on the fixed joint according to the height required by the frame, and penetrating a bolt hole by using a bolt and screwing a nut when the bolt hole of the movable joint is overlapped with the bolt hole of the fixed joint. On the premise of meeting the requirement of adjustable height of the supporting leg, the structure of the supporting leg is simplified, and the cost is reduced.
The invention also relates to a tree section crushing method, which adopts the tree section crusher to crush the tree sections or branches cut into small sections and comprises the following steps:
the method comprises the following steps: the tree section crusher is transported to a crushing site after being disassembled;
step two: assembling a tree section crusher on a crushing site;
step three: cutting trunks and branches into tree sections, and placing the tree sections into a feed hopper;
step four: starting the power device;
step five: the power device drives the upper peripheral surfaces of the two parallel hobbing cutters to rotate towards the middle through the transmission mechanism, tree sections are clamped in the middle, the rotating spiral cutting edges of the two hobbing cutters mill the tree sections from two sides, the tree sections are crushed, and the crushed wood chips fall down through the screen;
step six: after the crushing work is finished, the tree section crusher is disassembled and then is transported to the next crushing site;
the invention has the beneficial effects that: the invention adopts two hobbing cutters which are arranged in parallel and rotate towards the middle direction to clamp the tree section in the middle, and the tree section is milled and crushed from two sides; the disposable hob is adopted, the blades are arranged in a staggered phase compensation mode, so that the hob cutting force is reduced, the timber pile can be rolled into chips smaller than 10mm, milling is stable, and the noise is low; the transmission mechanism adopts a belt transmission mode, and has simple structure, low cost and high rolling cutting efficiency; the power device adopts an internal combustion engine, and is suitable for field use; the transmission mechanism adopts a belt transmission mechanism or a chain transmission mechanism, has simple structure and low cost, and adopts a height adjusting device on the support leg of the frame so as to be suitable for the field complicated uneven terrain. The invention also relates to a method for crushing diseased trees, which comprises the following steps: sawing diseased trees into tree sections in the forest complex area, and crushing the tree sections in a crusher.
Drawings
FIG. 1 is a schematic perspective view of a tree section shredder;
FIG. 2 is a schematic perspective view of a crushing mechanism of the tree section crusher;
FIG. 3 is a perspective view of a disposable hob;
FIG. 4 is a schematic elevation view of a disposable hob;
FIG. 5 is a schematic side view of a disposable hob;
in the figure: 1-frame, 11-fixed section, 12-movable section, 13-connecting part, 2-crushing mechanism, 21-driving shaft, 22-gear I, 23-shell, 24-hob I, 25-hob II, 26-screen, 27-gear II, 28-driven shaft, 3-power device, 4-transmission mechanism, 41-driving wheel, 42-transmission belt, 4-driven wheel, 5-feeding hopper, 100-disposable hob, 101-hob body, 102-shaft hole, 103-blade base body, 104-chip groove, 105-blade, 106-screw.
Detailed Description
The invention is further described by the following specific embodiments in conjunction with the attached drawings:
embodiment one, as shown in fig. 1 and 2: a roll-cutting tree section shredder for field use, comprising: the device comprises a frame 1, a power device 3, a transmission mechanism 4, a crushing mechanism 2, a feed hopper 5, a shell 23, a driving shaft 21, a driven shaft 28, a first hob 24, a second hob 25, a first gear 22, a second gear 27 and a key block.
Power device 3, drive mechanism 4 and rubbing crusher construct 2 and install in frame 1, drive mechanism 4 transmits power device 3's drive power for rubbing crusher construct 2, feeder hopper 5 is installed rubbing crusher constructs 2 is last.
The driving shaft 21 and the driven shaft 28 are parallelly and rotatably arranged in the shell 23 through bearings; the peripheral surfaces of the driving shaft 21 and the driven shaft 28 use key grooves, the first hob cutter 24 and the second hob cutter 25 are cylindrical, the peripheral surfaces of the first hob cutter 24 and the second hob cutter 25 are provided with cutting edges, the centers of the first hob cutter 24 and the second hob cutter 25 are provided with shaft holes, and the inner circumferences of the shaft holes are provided with key grooves. The first gear 22 and the second gear 27 are provided with shaft holes, and key grooves are formed in the inner circumferences of the shaft holes. The hob I24 and the gear I22 are installed on the driving shaft 21, and the hob I24 and the gear I22 rotate along with the driving shaft 21 through the key block; the second hob 25 and the second gear 27 are attached to the driven shaft 28, the second hob 25 and the second gear 27 are rotated with the driven shaft 28 by a key, and the first gear 22 is engaged with the second gear 27 so that the two hobs can be rotated in opposite directions toward the center. And a gap is reserved between the cutting edges of the two parallel roller cutters I24 and II 25. When the first hob cutter 24 and the second hob cutter 25 are in the horizontal position, the cutting edges above the central line both rotate towards the gap between the first hob cutter 24 and the second hob cutter 25. The tree sections are sandwiched by the first hob 24 and the second hob 25 which rotate towards the middle gap direction, and the tree sections are milled and crushed from two sides. The crushed wood chips fall through the screen 26.
The cutting edges of the first hob cutter 24 and the second hob cutter 25 can be straight cutting edges along the generatrix direction of the cylinder, or herringbone cutting edges or spiral cutting edges, and in the embodiment, the disposable hob cutter 100 is adopted.
As shown in fig. 3 to 5: the blade of the disposable hob is detachably mounted on the hob body, and the blade can be repaired, replaced or even discarded after being detached. The hob 41 is a disposable hob 100, including: the hob body 101 is cylindrical, a blade base body 103 is arranged on the cylindrical surface of the hob body 101, a detachable blade 105 is arranged on the blade base body 103, a chip removal groove 104 is arranged between the detachable blade and the blade base body, and a shaft hole 102 is formed in the central axis of the hob body 101. The blade base 103 and the chip groove 104 are in a spiral shape, and the range of a spiral angle (an acute angle formed between a tangent line of a cylindrical spiral line and a straight generatrix of a cylindrical surface passing through a tangent point) is 25 to 36 degrees, and preferably 30 degrees.
The wedge angle of the blades 105 is 45 degrees, the surfaces of the blades 105 are provided with screw holes, the blades 105 are arranged at intervals in a spiral shape, the blades 105 are installed on the blade base body 103 through screws 106, the included angle between every two adjacent blades 105 is 14-16 degrees, and the interval between every two adjacent blades 105 installed on the surface of the same blade base body 103 is not more than the width of a single blade 105. The mounting positions of the two rows of inserts 105 mounted on the surfaces of the adjacent insert bases 103 are offset from each other, that is: when the insert base bodies 103 rotate, the gap portions, which are not rolled between the adjacent insert pieces 105 on the surface of one of the insert base bodies 103, can be rolled by the insert pieces 105 of the latter group, and this arrangement of the insert pieces is called "offset complementary arrangement", which ensures that there is no skip cut portion. The staggered complementary arrangement mode is adopted to ensure that the rear blade can roll the gap position which is not rolled between the front blades when the hob 100 rotates.
This kind of abandon formula hobbing cutter can dismantle the change blade, and the cost is reduced, and the blade adopts the arrangement mode of staggered phase benefit, can become the piece that is less than 10mm with the stake hobbing when reducing two-thirds hobbing force, mills steadily, and the noise is low.
The hob body 101 adopts 7 series aviation grade aluminum alloy, the service life is 2 times longer than that of a common plain end cutter, the heat dissipation speed is improved, the stability of the disposable hob 100 and the structural strength of the hob body 101 are improved, the service life of the hob body 101 is prolonged, the blade 105 is made of hard alloy, the blade has high hardness, high strength, high wear resistance and high elastic modulus, a screw assembling mode without high-temperature welding is adopted, the original hardness of the blade is maintained, the hardness is higher than HRA93.5 degrees, and the service life of the blade is greatly prolonged. When the blade is dull, the operator can disassemble the blade 105 by himself and conveniently replace the blade 105.
The power device 3 is an internal combustion engine which is a diesel engine or a gasoline engine, and a two-stroke gasoline engine is adopted in the embodiment to reduce the weight, facilitate the carrying and be suitable for field use.
The transmission mechanism 4 is a belt transmission mechanism or a chain transmission, and the belt transmission mechanism is adopted in the embodiment: comprises a driving wheel 41 arranged on the power device 3, a driven wheel 43 arranged on the driving shaft 21, and a belt wound on the periphery of the driving wheel 41 and the driven wheel 42. The belt transmission mechanism has simple structure and low cost.
Frame 1 still includes the height regulating device who sets up on 1 landing leg of frame, height regulating device includes: the supporting leg comprises a fixed joint 11, a movable joint 12 and a connecting part 13, wherein the fixed joint 11 is fixed below the frame 1 and used for supporting the frame 1, and the movable joint 12 is detachably connected with the fixed joint 11 through the connecting part 13 and used for adjusting the height of the supporting leg. So as to be suitable for the field complicated uneven terrain.
The fixing section 11 is an angle steel, and at least two bolt holes are formed in the wing edge of the angle steel along the length direction; the movable joint 12 is an angle steel, and at least two bolt holes are formed in the wing edge of the angle steel along the length direction; the connecting part 13 is a bolt assembly; and the movable joint 12 is overlapped on the fixed joint 11 according to the height required by the frame 1, and when the bolt hole of the movable joint 12 is overlapped with the bolt hole of the fixed joint 11, a bolt penetrates through the bolt hole and a nut is screwed. On the premise of meeting the requirement of height-adjustable supporting legs 12, the structure of the supporting legs 12 is simplified, and the cost is reduced.
The second embodiment of the present invention is different from the first embodiment in that: the hob in the first embodiment adopts a spiral blade, and the hob blade in the second embodiment adopts a herringbone blade.
The third embodiment of the present invention is different from the first embodiment in that: the transmission mechanism 4 in the first embodiment is a belt transmission mechanism, and in the third embodiment, a chain transmission mechanism is adopted, including: a driving sprocket 41, a driven sprocket 43, and a chain 42 wound around the outer peripheries of the driving sprocket 41 and the driven sprocket 43. The chain transmission mechanism has good reliability, simple structure and low cost.
The invention also relates to a tree section crushing method, which adopts the tree section crusher to crush the tree sections or branches cut into small sections and comprises the following steps:
the method comprises the following steps: the tree section crusher is transported to a crushing site after being disassembled;
step two: assembling a tree section crusher on a crushing site;
step three: cutting trunks and branches into tree sections, and placing the tree sections into a feed hopper;
step four: starting the power device;
step five: the power device drives the upper peripheral surfaces of the two parallel hobbing cutters to rotate towards the middle through the transmission mechanism, tree sections are clamped in the middle, the rotating spiral cutting edges of the two hobbing cutters mill the tree sections from two sides, the tree sections are crushed, and the crushed wood chips fall down through the screen;
step six: after the crushing work is finished, the tree section crusher is disassembled and then is transported to the next crushing site;
when the fineness of the grinding is required to be adjusted, hobbing cutters with different diameters can be selected to adjust the gap between the two hobbing cutters.
In conclusion, the beneficial effects of the invention are as follows: the invention adopts two hobbing cutters which are arranged in parallel and rotate towards the middle direction to clamp the tree section in the middle, and the tree section is milled and crushed from two sides; the disposable hob is adopted, the blades are arranged in a staggered phase compensation mode, so that the hob cutting force is reduced, the timber pile can be rolled into chips smaller than 10mm, milling is stable, and the noise is low; the transmission mechanism adopts a belt transmission mode, and has simple structure, low cost and high rolling cutting efficiency; the power device adopts an internal combustion engine, and is suitable for field use; the transmission mechanism adopts a belt transmission mechanism or a chain transmission mechanism, has simple structure and low cost, and adopts a height adjusting device on the support leg of the frame so as to be suitable for the field complicated uneven terrain. The invention also relates to a method for crushing diseased trees, which comprises the following steps: sawing diseased trees into tree sections in the forest complex area, and crushing the tree sections in a crusher.
The above embodiments are provided for illustrative purposes only and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and therefore all equivalent technical solutions should fall within the scope of the present invention, and the scope of the present invention should be defined by the claims.

Claims (4)

1. A tree section shredder for field use comprising: the automatic grinding machine comprises a rack (1), a power device (3), a transmission mechanism (4), a grinding mechanism (2) and a feed hopper (5), wherein the power device (3), the transmission mechanism (4) and the grinding mechanism (2) are arranged on the rack (1), the transmission mechanism (4) transmits the driving force of the power device (3) to the grinding mechanism (2), and the feed hopper (5) is arranged on the grinding mechanism (2); the crushing mechanism (2) comprises: the driving shaft (21) and the driven shaft (28) are parallelly and rotatably arranged in the shell (23); keyways are arranged on the outer peripheral surfaces of the driving shaft (21) and the driven shaft (28), shaft holes are arranged in the cylindrical centers of the first hob (24) and the second hob (25), keyways are arranged on the inner circumference of the shaft holes, shaft holes are arranged on the first gear (22) and the second gear (27), and keyways are arranged on the inner circumference of the shaft holes; the hob I (24) and the gear I (22) are arranged on the driving shaft (21), and the hob I (24) and the gear I (22) rotate along with the driving shaft (21) through the key block; the second hob (25) and the second gear (27) are mounted on the driven shaft (28), the second hob (25) and the second gear (27) rotate along with the driven shaft (28) through a key block, and the first gear (22) is meshed with the second gear (27); the method is characterized in that: the hob one (24) and the hob two (25) are disposable hobs (100) comprising: the roller cutter comprises a cylindrical roller cutter body (101), wherein a blade base body (103) and a chip groove (104) are arranged on the cylindrical surface of the roller cutter body (101), a detachable blade (105) is arranged on the blade base body (103), the blade base body (103) and the chip groove (104) are in a spiral shape, a plurality of blades (105) are spirally arranged on the blade base body (103) at intervals, and two rows of blades (105) arranged on the surface of the adjacent blade base body (103) are arranged in a staggered phase compensation manner; the helical angles of the blade base body (103) and the chip grooves (104) are 25-36 degrees; the rack (1) further comprises a height adjusting device arranged on the supporting legs of the rack (1).
2. The tree section shredder according to claim 1, wherein: the transmission mechanism (4) is in belt transmission and comprises a driving wheel (41) arranged on the power device (3), a driven wheel (43) arranged on the driving shaft (21) and a transmission belt (42) wound on the periphery of the driving wheel (41) and the driven wheel (43).
3. The tree section shredder according to claim 2, wherein: the height adjusting device includes: the supporting leg comprises a fixed section (11), a movable section (12) and a connecting part (13), wherein the fixed section (11) is fixed below the frame (1) and used for supporting the frame (1), and the movable section (12) is detachably connected with the fixed section (11) through the connecting part (13) and used for adjusting the height of the supporting leg.
4. The tree section shredder according to claim 3, wherein: the fixing section (11) is an angle steel, and at least two bolt holes are formed in the wing edge of the angle steel along the length direction; the movable joint (12) is an angle steel, and at least two bolt holes are formed in the wing edge of the angle steel along the length direction; the connecting part (13) is a bolt assembly; and overlapping the movable joint (12) on the fixed joint (11) according to the height required by the frame (1), and penetrating a bolt hole of the movable joint (12) and the bolt hole of the fixed joint (11) by using a bolt and screwing a nut when the bolt hole is overlapped.
CN201910941122.3A 2019-09-30 2019-09-30 Tree segment crusher used in field and tree segment crushing method Expired - Fee Related CN110586278B (en)

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* Cited by examiner, † Cited by third party
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CN112452485A (en) * 2020-11-10 2021-03-09 宿迁市菱好木业有限公司 Wood grinder
CN112679243A (en) * 2020-12-16 2021-04-20 王淼林 Livestock destruction device for death of diseases in animal husbandry

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US5379951A (en) * 1990-12-26 1995-01-10 Comcorp, Inc. Comminuting apparatus
JP2000070747A (en) * 1998-08-31 2000-03-07 Furukawa Co Ltd Tree branch crusher
US6527209B1 (en) * 2000-04-10 2003-03-04 John Dorscht Comminuting apparatus
US8307866B2 (en) * 2008-11-26 2012-11-13 Leonard Mark A Wood chipper with improved feed roller and adjustable legs
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