CN110574657A - Long-strip-shaped blade rotary drill bit, portable rotary drilling machine and stump crushing method - Google Patents
Long-strip-shaped blade rotary drill bit, portable rotary drilling machine and stump crushing method Download PDFInfo
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- CN110574657A CN110574657A CN201910941127.6A CN201910941127A CN110574657A CN 110574657 A CN110574657 A CN 110574657A CN 201910941127 A CN201910941127 A CN 201910941127A CN 110574657 A CN110574657 A CN 110574657A
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- drill bit
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/06—Uprooting or pulling up trees; Extracting or eliminating stumps
- A01G23/067—Uprooting or pulling up trees; Extracting or eliminating stumps by comminuting the tree stumps
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
Abstract
The elongated blade rotary drill of the present invention comprises: the drill bit comprises a drill bit base body, a positioning drill bit and elongated blades, wherein the detachable positioning drill bit is arranged on a central shaft at the top end of the round table-shaped drill bit base body, and at least two detachable elongated blades uniformly distributed along the side surfaces are arranged on the side surfaces of the drill bit base body. And drilling the stump downwards and towards the periphery from the center of the stump by using a rotary positioning drill bit and a strip-shaped blade until the stump is completely crushed. The present invention also provides a portable rotary drilling machine, comprising: the hand-held frame, the power device, the transmission rod and the rotary drilling head are detachably connected, and the portable rotary drilling machine can be disassembled into parts convenient to carry so as to be conveniently transported to forest complex zones and reassembled to locally crush stumps of diseased trees. The invention also provides a stump crushing method, which is characterized in that the stump in the soil is directly crushed on site by adopting a portable rotary drilling machine under the condition of not digging out the stump, and the pine nematode epidemic situation can be effectively controlled in time.
Description
Technical Field
The invention belongs to the field of forestry machinery, and particularly relates to a rotary drill with a strip-shaped blade, a portable rotary drilling machine and a stump crushing method.
background
The pine wood nematode enters the xylem through the nutrient-supplemented wound of the monochamus alternatus hope and is parasitized 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 infected by bursaphelenchus xylophilus is the subject of monochamus alternatus hope oviposition. 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 wood nematodes are spread.
The method is a reliable control strategy for clearing, cutting and burning diseased trees and dead trees and removing plant residues, so as to cut off the propagation path of the pine wood nematodes and achieve the purpose of preventing and treating the stumps of the underground parts of diseased plants.
At present, large-scale machinery is available abroad for crushing the stump, such as a root crusher manufactured by Germany, the root is pulled out of the ground by a small-scale tree pulling machine, and a driver drives the root crusher to roll and cut the whole root back and forth by a front large-scale roller cutter, thereby achieving the purposes of crushing the stump and preventing and controlling pine wood nematodes. However, the large-scale machinery has overlarge volume and mass, is difficult to enter a forest complex area, cannot crush the stump at any time and any place, and cannot effectively control the pine nematode epidemic situation in time.
at present, a small machine for crushing the stump under the condition that the whole stump is not dug out does not exist in China, the stump of a diseased tree cannot be crushed at any time and any place, and the pine nematode epidemic situation is difficult to control.
Patent documents that have not found the same technology as the present invention by patent search have found the following patents that are related to the present invention:
The utility model discloses a utility model patent of "CN 201821688911.8", application date is "2018.10.18", publication number is "CN 209201953U", publication date is "2019.08.06", the name is "a crushing drill bit and bamboo stump rubbing crusher", applicant "zhushai qiao li forestry machinery science and technology limited company". The utility model discloses a crushing drill bit, including location drill bit and cutter body, the upper end at the location drill bit is installed to the cutter body, the cutter body outwards extends two at least flank portions by the center, the cutting blade is installed to the lower extreme of flank portion, the cutting blade is by inner to outer end tilt up. The utility model discloses a bamboo root and stem of certain plants rubbing crusher is still disclosed, which comprises a frame, be provided with rotary drive mechanism in the frame, rotary drive mechanism's output is connected with foretell crushing drill bit. This rubbing crusher has crushing drill bit, and crushing drill bit utilizes the positioning drill bit to creep into the bamboo root and stem, effectively destroys the bamboo joint position of the root and stem, and the cutting blade is by inner to outer end tilt up, has pore wall and the root must that carries forward cutting and crushing bamboo root and stem one by one step, smashes more and more the thin fragmentation, owing to adopt the flank portion installation cutting blade of outside extension, and the clearance is great, does benefit to the chip removal very much, and is thorough to bamboo root and stem clean-up.
Because the cutting blade is arranged on the flank part extending outwards from the center, the flank part is thinner, the strength and the rigidity are lower, and the cutting blade is not suitable for crushing the stump with the hardness larger than that of the bamboo stump; and the lateral wing part has large diameter and small inclination, the cutting resistance is large, and the stump grinding machine is not suitable for crushing the stump with the hardness larger than that of the bamboo stump. And the utility model discloses a do not relate to at all and infected the sick tree stump of pine nematode and carry out smashing on the spot and handling to prevent that sick tree from propagating along the way in handling, with the propagation way of cutting off the pine nematode, in time control content such as pine nematode epidemic situation effectively.
disclosure of Invention
The technical problem to be solved by the invention is to provide the following components aiming at the defects in the prior art: a rotary drill with a strip-shaped blade, a portable rotary drilling machine and a stump crushing method are provided, so that a diseased stump can be crushed at any time and any place on the premise of not digging out the stump, and the pine nematode epidemic situation can be effectively controlled in time.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an elongated blade rotary drill bit comprising: the positioning drill bit is arranged on a central shaft at the top end of the drill bit base body in a round platform shape, and the side face of the drill bit base body is provided with at least two strip-shaped blades which are uniformly distributed along the side face.
when the rotary drilling machine works, the positioning drill bit is aligned to the center of the stump and slightly pressed downwards, and the positioning drill bit is used for drilling a positioning hole; at the in-process that pushes down, utilize the front end drilling locating hole of rectangular shape blade peripheral, enlarge the locating hole, form the bell mouth: under the effect of gravity and pressure, rectangular shape blade is smashed and is gone deep into the bell mouth along with the stump, and the periphery in bell mouth is smashed by rectangular shape blade drilling, until the stump is smashed completely, just can all smash once to the stump that the diameter is not more than 200 mm. The integral strip-shaped blade is uniformly stressed relative to the detachable short blade group, and the chip removal grooves between the strip-shaped blades are larger than the gaps of the detachable short blade group, so that chip removal is facilitated, and the operation is smoother.
further, the positioning drill is detachably arranged on the top of the drill base body in a circular truncated cone shape. The drill bit can be repaired or replaced after being detached, and the cost is saved.
furthermore, the positioning drill bit is connected to the top of the drill bit base body through threads, and the spiral direction of the threads is the same as the rotary drilling direction of the rotary drill bit, so that the positioning drill bit cannot loosen during drilling.
Furthermore, the positioning drill bit is a conical drill bit which is high in strength and rigidity and suitable for drilling hard stumps.
furthermore, the strip-shaped blade is detachably connected with the side face of the drill bit base body, so that the strip-shaped blade can be repaired or replaced after being detached, and the cost is saved.
Furthermore, a plurality of screw holes are formed in the surface of the elongated blade and are fixed to the side face of the drill base body through screws. The installation mode that adopts the screw low in manufacturing cost, installation are simple and convenient.
Furthermore, a connecting pipe is arranged on the central shaft of the bottom surface of the drill base body, and a radial pin hole is formed in the connecting pipe and used for assembling the portable rotary drilling machine.
the invention also relates to a portable rotary drilling machine adopting the rotary drilling head, which comprises: the hand-held frame is a frame with a handle, the power device is installed on the frame of the hand-held frame, the rotary drill bit is the strip-shaped blade rotary drill bit, the upper end of the transmission rod is detachably connected with an output shaft of the power device, and the lower end of the transmission rod is detachably connected with the rotary drill bit. The detachable connection can be used for disassembling the portable rotary drilling machine into parts convenient to carry, so that the parts can be conveniently transported to forest complex zones, and the stumps of diseased trees are crushed on the spot after being reassembled. The stump with the diameter not more than 200mm can be completely crushed at one time.
The invention also provides a method for crushing stumps by adopting the portable rotary drilling machine, which comprises the following steps: the stump in the soil is directly crushed on site by a rotary drilling machine under the condition that the stump does not need to be dug out. When the multifunctional stump drilling machine works, a rotary drilling machine is started firstly, a positioning drill bit is aligned to the center of the stump, the positioning drill bit is pressed downwards with slight force, and the positioning drill bit drills out a positioning hole; the rectangular shape blade front end drilling locating hole that is close to the location drill bit is peripheral, enlarges the locating hole, forms the bell mouth: under the action of gravity and pressure, the rotary drill bit is deep into the tapered hole along with the stump being crushed, and the periphery of the tapered hole is crushed by the long strip-shaped blade in a drilling mode until the stump is completely crushed.
The stump crushing method comprises the following steps:
the method comprises the following steps: after the portable rotary drilling machine arrives at an operation site, the power device, the transmission rod and the rotary drilling head are sequentially assembled into the portable rotary drilling machine;
Step two: starting the power device, and checking and testing the portable rotary drilling machine;
Step three: holding the hand-held rack, and aligning the rotary drill bit to the center of the stump;
Step four: slightly pressing downwards with force, and drilling the stump by a rotary drill;
step five: after the stump is crushed, aligning the rotary drill bit to the right center of the next stump, and continuously crushing;
Step six: after the stump smashing work is finished, the power device is closed, and the portable rotary drilling machine is decomposed into the power device, the transmission rod and the rotary drill bit, so that the stump smashing device is convenient to carry.
the invention has the beneficial effects that: when the elongated blade rotary drill bit of the present invention is used: drilling a positioning hole by using a positioning drill bit; utilize rectangular shape blade front end drilling locating hole periphery, enlarge the locating hole, form the bell mouth: under the effect of gravity and pressure, rectangular shape blade is smashed and is gone deep into the bell mouth along with the stump, and the periphery in bell mouth is smashed by rectangular shape blade drilling, until the stump is smashed completely, just can all smash once to the stump that the diameter is not more than 200 mm. The positioning drill bit and the strip-shaped blade are mounted by screws, so that the positioning drill bit and the strip-shaped blade can be polished or replaced, and the cost is saved.
The portable rotary drilling machine adopts detachable connection, and can be disassembled into parts convenient to carry so as to be convenient to transport to a forest complex zone and to crush the stump of a diseased tree on the spot after being reassembled.
The invention also provides a method for crushing stumps by adopting the portable rotary drilling machine, which comprises the following steps: the stump in the soil is directly crushed on site by a rotary drilling machine under the condition that the stump does not need to be dug out. Can effectively control the pine nematode epidemic situation in time.
drawings
FIG. 1 is a schematic front view of an elongated blade rotary drill head;
FIG. 2 is a schematic diagram of a front view of the portable rotary drilling machine;
FIG. 3 is a schematic cross-sectional view of the transmission rod;
in the figure: 1-power device, 2-hand rack, 3-drive rod, 4-rotary drill bit, 401-drill bit base body, 402-positioning drill bit, 403-strip-shaped blade, 404-chip groove, 405-screw, 406-connecting pipe, 407-pin hole and 5-pin.
Detailed Description
the invention is further described by the following specific embodiments in conjunction with the attached drawings:
The elongated blade bur 4 of the present invention is shown in fig. 1: the method comprises the following steps: the drill bit comprises a base body 401, a positioning drill bit 402, elongated blades 403, a chip groove 404 and a connecting pipe 406, wherein the drill bit base body 401 is in a circular truncated cone shape, the detachable positioning drill bit 402 is arranged on a central shaft at the top end of the drill bit base body 401 in the circular truncated cone shape, at least two elongated blades 403 uniformly distributed along the side face are arranged on the side face of the drill bit base body 401, the elongated blades 403 are uniformly distributed in an inclined mode along the side face, the inclined direction from the top of the drill bit base body 401 is the same as the rotating direction of the elongated blade rotary drill bit 4 during drilling, and the inclined angle is 10-. A chip removal groove 404 is formed between the two adjacent groups of the strip-shaped blades 403, and the chip removal groove 404 is a deeper arc-shaped straight groove which is formed in the axial direction of the drill base body 401 so as to facilitate chip containing and rapid chip removal.
A connecting pipe 406 is provided on the central axis of the bottom surface of the drill base 401, and a radial pin hole 407 is provided in the connecting pipe 406. The long strip-shaped blade rotary drill bit 4 is 200mm in diameter, and the stump with the diameter smaller than that of the long strip-shaped blade rotary drill bit 4 can be completely crushed once, the long strip-shaped blade rotary drill bit 4 is large in diameter and high in strength, so that drilling efficiency is high, the positioning drill bit and the long strip-shaped blade can be repaired or replaced after the long strip-shaped blade rotary drill bit is detached, and cost is saved.
The positioning drill 402 is detachably connected along the central axis of the drill base 401, and in this embodiment, the positioning drill 402 is screwed to the top end of the drill base 401. The elongated blade rotary drill bit 4 is conveniently positioned on the stump.
The direction of rotation of the threaded connection of the positioning drill bit 402 is the same as the direction of rotation of the power unit 1. To ensure that the positioning bit 402 is screwed tighter and looser during operation of the portable rotary machine.
The positioning drill 402 can be drills in various forms such as twist drills, and the positioning drill 402 is a conical drill in the embodiment, so that the strength and the rigidity are high, and the positioning drill is suitable for drilling stumps of hard trees.
The surface of the elongated insert 404 is provided with a screw hole and is fixed to the side surface of the drill base 401 by a screw 405. The included angle between the strip-shaped blade 404 and the tangent plane of the side face of the drill bit base body 401 is 15 degrees, and the wedge angle of the strip-shaped blade 404 is 45 degrees. The installation mode that adopts the screw low in manufacturing cost, installation are simple and convenient.
a connecting pipe 406 is arranged on the central axis of the bottom surface of the drill base body 401, and a radial pin hole 407 is arranged on the connecting pipe 406 for assembling a portable rotary drilling machine.
an embodiment of the portable rotary drilling machine of the invention is shown in fig. 2: the method comprises the following steps: the hand rest 2, the power device 1, the transmission rod 3 and the rotary drill 4.
The handrails 2 are frames with handles, bolt holes corresponding to the bolt holes in the base of the power device 1 are formed in the frames of the handrails 2, and the power device 1 is installed on the frames of the handrails 2 through bolt assemblies.
The upper end of the transmission rod 3 is detachably connected with an output shaft of the power device 1, and the lower end of the transmission rod 3 is detachably connected with the rotary drill bit 4. The detachable connection can be used for disassembling the portable rotary drilling machine into parts convenient to carry, so that the parts can be conveniently transported to forest complex zones, and the stumps of diseased trees are crushed on the spot after being reassembled.
The transmission rod 3 is a round pipe, the wall thickness of the round pipe is preferably 3-5 mm, and detachable connecting parts matched with the power device 1 and the rotary drill bit 4 are arranged at two ends of the round pipe respectively. To reduce the weight of the transmission lever 3 and to increase the portability of the portable machine.
the two ends of the transmission rod 3 are respectively provided with a detachable connecting part matched with the output shaft of the power device 1 and a connecting pipe 406 at the bottom of the rotary drill 4, and the detachable connecting part can be a pin hole and a pin, a key groove and a flat key, a spline connection, a flange bolt connection or a threaded connection. In this embodiment, a connection manner of a pin hole and a pin is adopted, the inner diameter of one end of the circular tube of the transmission rod 3 is slightly larger than the outer diameter of the output shaft of the power device 1, and the outer diameter of the other end of the circular tube of the transmission rod 3 is slightly smaller than the inner diameter of the connecting tube 406 at the bottom of the rotary drill 4. A pin hole is formed in an output shaft of the power device 1, a pin hole 407 is formed in a connecting pipe 406 at the bottom of the rotary drill 4, and pin holes 301 are formed in two ends of the transmission rod 3; the upper end of the transmission rod 3 is sleeved on the output shaft of the power device 1, and when a pin hole 301 in the upper end of the transmission rod 3 is superposed with a pin hole in the output shaft of the power device 1, a pin 5 is inserted for fixation; the lower end of the driving rod 3 is sleeved in the bottom connecting pipe 406 of the rotary drill bit 4, and when the pin hole 301 at the lower end of the driving rod 3 is overlapped with the pin hole 407 on the bottom connecting pipe 406 of the rotary drill bit 4, a pin 5 is inserted and fixed. So that the power device 1 can drive the rotary drill bit 4 to rotate, thereby drilling the stump. The mode of adopting pinhole, pin connection can simplify fixed connection part, reduce cost.
The power device 1 selects a gasoline engine, a diesel engine or a rechargeable motor suitable for field operation, preferably selects a two-stroke gasoline engine with larger output power per unit weight, and reduces the weight of the power device 1 as much as possible. The base of the power device 1 is provided with a bolt hole connected with the frame of the hand frame 2, and the output shaft of the power device 1 is provided with a radial pin hole.
the second embodiment of the portable rotary drilling machine of the invention is different from the first embodiment in that: the upper end and the lower end of the transmission rod 3 of the first embodiment are respectively connected with a pin hole of the output shaft of the power device 1 and a pin hole 407 of a connecting pipe 406 at the bottom of the rotary drill 4 by using pins 5. And in the second embodiment, the output shaft of the power device 1 and the connecting pipe 406 at the bottom of the rotary drill bit 4 are both provided with external threads, the upper end and the lower end of the transmission rod 3 are provided with internal threads matched with the external threads of the output shaft of the power device 1 and the connecting pipe 406 at the bottom of the rotary drill bit 4, and the rotating direction of the threads is the same as that of the elongated blade rotary drill bit 4 during drilling, so that the elongated blade rotary drill bit 4 can only be screwed more and more tightly and cannot be loosened during the working period of the rotary machine.
The invention also provides a method for crushing stumps by adopting the portable rotary drilling machine, which comprises the following steps: the stump in the soil is directly crushed on site by a rotary drilling machine under the condition that the stump does not need to be dug out. When the multifunctional stump drilling machine works, a rotary drilling machine is started firstly, the positioning drill bit 402 is aligned to the center of the stump, the positioning drill bit 402 is pressed downwards with slight force, and a positioning hole is drilled by the positioning drill bit 402; the strip-shaped blade 403 close to the positioning drill 402 drills the periphery of the positioning hole, enlarges the positioning hole, and forms a taper hole: under the effect of gravity and pressure, the rotary drill 4 is smashed and deepens into the bell mouth along with the stump, and the periphery of bell mouth is smashed by rectangular shape blade 404 drilling, is smashed completely until the stump is smashed completely, just can all smash once to the stump that the diameter is not more than 200 mm.
The stump crushing method comprises the following specific steps:
The method comprises the following steps: after the drilling machine arrives at an operation site, the power device 1, the transmission rod 3 and the rotary drill bit 4 are sequentially assembled into a portable rotary drilling machine;
Step two: starting the power device 1, and checking and testing the portable rotary drilling machine;
step three: the hand-held rack 2 is held, and the rotary drill 4 is aligned to the center of the stump;
Step four: slightly pressing downwards with force, and drilling the stump by the rotary drill 4;
Step five: after the stump is crushed, aligning a rotary drill 4 to the right center of the next stump, and continuously crushing;
Step six: after the stump smashing work is finished, the power device 1 is closed, and the portable rotary drilling machine is decomposed into the power device 1, the transmission rod 3 and the rotary drilling head 4 so as to be convenient to carry.
In conclusion, the beneficial effects of the invention are as follows: when the elongated blade rotary drill bit of the present invention is used: drilling a positioning hole by using a positioning drill bit; utilize rectangular shape blade front end drilling locating hole periphery, enlarge the locating hole, form the bell mouth: under the effect of gravity and pressure, rectangular shape blade is smashed and is gone deep into the bell mouth along with the stump, and the periphery in bell mouth is smashed by the blade drilling, until the stump is smashed completely, just can all smash to the stump that the diameter is not more than 200 mm. The positioning drill bit and the strip-shaped blade are mounted by screws, so that the positioning drill bit and the strip-shaped blade can be polished or replaced, and the cost is saved.
The portable rotary drilling machine adopts detachable connection, and can be disassembled into parts convenient to carry so as to be convenient to transport to a forest complex zone and to crush the stump of a diseased tree on the spot after being reassembled.
the invention also provides a method for crushing stumps by adopting the portable rotary drilling machine, which comprises the following steps: the stump in the soil is directly crushed on site by a rotary drilling machine under the condition that the stump does not need to be dug out. Can effectively control the pine nematode epidemic situation in time.
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 (10)
1. An elongated blade rotary drill bit comprising: drill bit base member (401), location drill bit (402) and rectangular shape blade (403), its characterized in that: the positioning drill bit is arranged on a central shaft at the top end of the drill bit base body (401) in a round platform shape, and the side face of the drill bit base body (401) is provided with at least two strip-shaped blades (403) uniformly distributed along the side face.
2. The elongate blade rotary drill bit of claim 1, wherein: the positioning drill bit (402) is detachably arranged on the top of the drill bit base body (401).
3. The elongate blade rotary drill bit of claim 2, wherein: the positioning drill bit (402) is connected to the top end of the drill bit base body (401) through threads, and the spiral direction of the threads is the same as the rotary drilling direction of the rotary drill bit.
4. the elongate blade rotary drill bit of claim 3 wherein: the positioning drill bit (402) is a cone drill bit.
5. The elongate blade rotary drill bit of claim 1, wherein: the elongated blade (403) is detachably connected with the side surface of the drill bit base body (401).
6. the elongate blade rotary drill bit of claim 5, wherein: the surface of the strip-shaped blade (404) is provided with a plurality of screw holes and is fixed on the side surface of the drill bit base body (401) through screws (405).
7. The elongate blade rotary drill bit of claim 6, wherein: a connecting pipe (406) is arranged on the central shaft of the bottom surface of the drill bit base body (401), and a radial pin hole (407) is arranged on the connecting pipe (406).
8. A portable rotary drill comprising: hand frame (2), power device (1), transfer line (3) and rotary drill head (4), hand frame (2) are the frame of taking the handle, power device (1) is installed on the frame of hand frame (2), its characterized in that: the rotary drill bit (4) is an elongated blade rotary drill bit according to any one of claims 1 to 7, the upper end of the transmission rod (3) is detachably connected with the output shaft of the power device (1), and the lower end of the transmission rod (3) is detachably connected with the rotary drill bit (4).
9. A stump crushing method is characterized in that: directly crushing the stump in the soil on site by using a portable rotary drilling machine according to claim 8 without digging out the stump;
When the multifunctional stump drilling machine works, a rotary drilling machine is started firstly, the positioning drill bit (402) is aligned to the center of the stump, and is pressed downwards with slight force, so that the positioning drill bit (402) drills out a positioning hole; a pilot blade (403) adjacent to the pilot bit (402) drills the pilot hole perimeter, enlarging the pilot hole to form a tapered hole: under the action of gravity and pressure, the rotary drill bit (4) penetrates into the conical hole along with the stump being crushed, and the periphery of the conical hole is drilled and crushed by the strip-shaped blade (404) until the stump is completely crushed.
10. The stump pulverizing method according to claim 9, which comprises the following specific steps:
the method comprises the following steps: after the portable rotary drilling machine arrives at an operation site, the power device (1), the transmission rod (3) and the rotary drill bit (4) are sequentially assembled into the portable rotary drilling machine;
Step two: starting the power device (1), and checking and testing the portable rotary drilling machine;
Step three: the hand-held rack (2) is held, and the rotary drill bit (4) is aligned to the center of the stump;
Step four: slightly pressing downwards with force, and drilling the stump by a rotary drill bit (4);
Step five: after the stump is crushed, aligning a rotary drill bit (4) to the right center of the next stump, and continuously crushing;
Step six: after the stump smashing work is finished, the power device (1) is closed, and the portable rotary drilling machine is decomposed into the power device (1), the transmission rod (3) and the rotary drill bit (4) so as to be convenient to carry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941127.6A CN110574657A (en) | 2019-09-30 | 2019-09-30 | Long-strip-shaped blade rotary drill bit, portable rotary drilling machine and stump crushing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941127.6A CN110574657A (en) | 2019-09-30 | 2019-09-30 | Long-strip-shaped blade rotary drill bit, portable rotary drilling machine and stump crushing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110574657A true CN110574657A (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910941127.6A Pending CN110574657A (en) | 2019-09-30 | 2019-09-30 | Long-strip-shaped blade rotary drill bit, portable rotary drilling machine and stump crushing method |
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| CN (1) | CN110574657A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283075A (en) * | 2011-06-28 | 2011-12-21 | 南京林业大学 | Portable bamboo or tree stump cleaning machine |
| CN202183954U (en) * | 2011-07-20 | 2012-04-11 | 福建农林大学 | Stump breaking and drilling machine |
| CN105665798A (en) * | 2016-04-18 | 2016-06-15 | 哈尔滨理工大学 | Polycrystalline diamond inner chip removal drill |
| CN207639325U (en) * | 2017-12-12 | 2018-07-24 | 珠海巧力林业机械科技有限公司 | A kind of bamboo root and stem of certain plants pulverizer |
| CN207668566U (en) * | 2017-12-12 | 2018-07-31 | 珠海巧力林业机械科技有限公司 | A kind of circular cone crushing drill bit |
-
2019
- 2019-09-30 CN CN201910941127.6A patent/CN110574657A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283075A (en) * | 2011-06-28 | 2011-12-21 | 南京林业大学 | Portable bamboo or tree stump cleaning machine |
| CN102283075B (en) * | 2011-06-28 | 2012-09-12 | 南京林业大学 | Portable bamboo or tree stump cleaning machine |
| CN202183954U (en) * | 2011-07-20 | 2012-04-11 | 福建农林大学 | Stump breaking and drilling machine |
| CN105665798A (en) * | 2016-04-18 | 2016-06-15 | 哈尔滨理工大学 | Polycrystalline diamond inner chip removal drill |
| CN207639325U (en) * | 2017-12-12 | 2018-07-24 | 珠海巧力林业机械科技有限公司 | A kind of bamboo root and stem of certain plants pulverizer |
| CN207668566U (en) * | 2017-12-12 | 2018-07-31 | 珠海巧力林业机械科技有限公司 | A kind of circular cone crushing drill bit |
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Application publication date: 20191217 |