CN110521534A - A kind of set of blades rotary drill and Portable rotating drilling machine and butt breaking method - Google Patents
A kind of set of blades rotary drill and Portable rotating drilling machine and butt breaking method Download PDFInfo
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- CN110521534A CN110521534A CN201910942355.5A CN201910942355A CN110521534A CN 110521534 A CN110521534 A CN 110521534A CN 201910942355 A CN201910942355 A CN 201910942355A CN 110521534 A CN110521534 A CN 110521534A
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- butt
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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)
- Crushing And Pulverization Processes (AREA)
Abstract
Set of blades rotary drill of the invention includes: bit matrix, draws drill bit and set of blades, is provided on the central axis on round table-like bit matrix top and removably draws drill bit, and in the side of bit matrix, setting is no less than two groups of uniformly distributed set of blades.Draw drill bit, guiding blade and main blade since butt center downwards and to periphery drilling butt, until butt is crushed completely using rotation.The present invention also provides a kind of Portable rotating drilling machines, it include: that Portable rotating drilling machine using being detachably connected can be split into component easy to carry by handrail, power device, drive rod and rotary drill, in order to transport to forest complex area, sick tree butt is crushed after re-assemblying on the spot.The present invention also provides a kind of butt breaking methods, in the case where that need not dig out butt, are directly crushed to the butt of place in the soil on the spot using Portable rotating drilling machine, can timely and effectively control loose ends worm epidemic situation.
Description
Technical field
The invention belongs to forestry machinery fields, and in particular to a kind of set of blades rotary drill and Portable rotating drilling machine and butt
Breaking method.
Background technique
Bursaphelenchus xylophilus is that the wound to be supplemented the nutrients by Monochamus alternatus Hope enters xylem, is colonized in resin canal.A large amount of
It is mobile while breeding, complete stool is gradually spread, and lead to the destruction and death of resin canal parenchyma cell and epithelial cell, causes to plant
Strain dehydration, last whole strain are withered.Pine tree by Infection of Bursaphelenchus xylophilus is the object of Monochamus alternatus Hope oviposition.Next year Monochamus alternatus Hope plumage
A large amount of nematodes can be carried when change again, and are inoculated on " strong tree ", so recycles, leads to the propagation of Bursaphelenchus xylophilus.
Sick tree and dying tree are surgeried and are burnt in forest land cleaning, remove diseased plant residuum, this is a kind of relatively reliable prevention and treatment pair
Plan achievees the purpose that prevent and treat Bursaphelenchus xylophilus, but to the processing of the butt of diseased plant under ground portion to cut off the route of transmission of Bursaphelenchus xylophilus
It is then relatively difficult.
Foreign countries have big machinery to can be used for crushing butt at present, such as the tree root pulverizer of Germany's manufacture, by tree root with small-sized
Pulling out that tree is mechanical to extract ground, driver drives tree root pulverizer preposition large size roller cutter whole tree root of rolling cut back and forth, thus
Achieve the purpose that crush butt, prevention and treatment Bursaphelenchus xylophilus.But big machinery volume and quality are excessive, it is difficult to enter forest intricately
Band cannot crush butt whenever and wherever possible, cannot timely and effectively control loose ends worm epidemic situation.
The domestic small-sized machine for crushing butt in the case where not digging out whole butt not yet at present, cannot accomplish at any time
Sick tree butt is crushed everywhere, it is difficult to control loose ends worm epidemic situation.
Do not retrieved temporarily by patent retrieval with the patent literature report of same technique of the present invention, retrieved with it is of the invention
There are the following patents of relationship:
It is " 2018.10.18 " application No. is " CN201821688911.8 ", the applying date, Publication No. " CN209201953U ", public affairs
Open day be " 2019.08.06 ", entitled " a kind of crushings drill bit and bamboo root and stem of certain plants pulverizer ", artificial " the skilful power forestry machinery in Zhuhai of application
The utility model patent of Science and Technology Ltd. ".The utility model discloses a kind of crushing drill bit, including positioning drill bit and cutter hub,
The cutter hub is mounted on the upper end of positioning drill bit, and the cutter hub is by extending centrally out out at least two pieces of flank sections, the flank
The lower end in portion is equipped with cutting tip, and the cutting tip is tilted upwards by inner end to outer end.The utility model also discloses one
Bamboo root and stem of certain plants pulverizer, including rack are planted, rotary drive mechanism is provided in the rack, the output end of the rotary drive mechanism connects
It is connected to above-mentioned crushing drill bit.The pulverizer, which has, crushes drill bit, crushes drill bit using positioning drill bit and creeps into the bamboo root and stem of certain plants, effectively breaks
The ring position of bad butt, cutting tip are tilted upwards by inner end to outer end, the hole of have levels progressive cutting and the smashing bamboo root and stem of certain plants
Wall and root, crushing is more comminuted, and due to installing cutting tip using outwardly extending flank section, gap is larger, very sharp
In chip removal, the bamboo root and stem of certain plants is cleaned out thoroughly.
Since the utility model is using cutting tip is being installed by extending centrally out out in flank section, flank section is more
Thin, strength and stiffness are lower, are not suitable for and crush the hardness butt bigger than the bamboo root and stem of certain plants;And its flank section diameter is big, gradient
Small, cutting resistance is big, is also not suitable for and crushes the hardness butt bigger than the bamboo root and stem of certain plants.And the utility model is at all without reference to infection
The sick tree butt of loose ends worm is crushed and is handled on the spot, to prevent sick tree from propagating on the way in the handling process, to cut off pine
The route of transmission of nematode timely and effectively controls the contents such as loose ends worm epidemic situation.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies in the prior art, provide: a kind of set of blades rotary drill
Head and Portable rotating drilling machine and butt breaking method, so that sick tree can be crushed whenever and wherever possible under the premise of not digging out butt
Butt timely and effectively controls loose ends worm epidemic situation.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of set of blades rotary drill, comprising: bore
Head matrix draws drill bit and set of blades, draws drill bit and is arranged on the central axis on the round table-like bit matrix top, in institute
No less than two groups of the side setting of bit matrix laterally uniformly distributed set of blades is stated, includes a piece of guidance in every group of set of blades
Blade and several pieces main blades.
Start rotary drill machine when work, drill bit alignment butt center will be drawn, slightly firmly pressed down, bored using drill bit is drawn
Location hole out;During pushing, using guiding blade drilling location hole periphery, location hole is expanded, forms bellmouth: In
Under the action of gravity and pressure, several pieces main blades on drill bit go deep into bellmouth as butt is pulverized, the periphery of bellmouth
It is crushed by main blade drilling, until butt is crushed completely, the butt for diameter no more than 200mm once can whole powder
It is broken.
Further, the top drawn drill bit and be removably disposed in the bit matrix of truncated cone-shaped.It can tear open
Reconditioning is carried out after unloading or drill bit is drawn in replacement, has saved cost.
Further, the drill bit that draws is threadedly attached at the top of the bit matrix, the hand of spiral of screw thread with
The rotary drill direction of rotary drill is identical, and making to draw drill bit will not loosen in drilling.
Further, the guiding blade in set of blades and several pieces main blades are successively mounted on bit matrix to removable compartment
Top-to-bottom side.Reconditioning or replacement main blade are carried out after capable of dismantling, and have saved cost.
Further, it is arranged between multiple main blades in two groups of adjacent set of blades using the method that dislocation is mutually mended
Column.When bit matrix rotation, wherein the gap portion energy for not having drilling to arrive between adjacent main blade in a set of blades
Enough main blade drillings by latter set of blades, it is ensured that part is cut in no leakage.
Further, side of the main blade at the top of the bit matrix is also obliquely provided with auxiliary-blade, In
In downward drilling process, the auxiliary-blade is capable of the timber of side of the main blade at the top of rotary drill, to reduce main blade side
Drilling resistance suffered by face avoids blocking rotary drill due to drilling resistance is excessive.
Further, it is provided with connecting tube on bottom center's axis of the bit matrix, is provided in the connecting tube
Radial pin hole, for being assembled into Portable rotating drilling machine.
The invention further relates to a kind of Portable rotating drilling machines using rotary drill, comprising: handrail, power device, drive rod
And rotary drill, the handrail are frame with handles, the power device is mounted on the frame of handrail, the rotary drill
For the set of blades rotary drill, the upper end of the drive rod and the output shaft of the power device are detachably connected, the biography
The lower end of lever is detachably connected with the rotary drill.Portable rotating drilling machine can be split into convenient for removing by this be detachably connected
The component of fortune crushes sick tree butt in order to transport to forest complex area on the spot after re-assemblying.Diameter is not more than between
The butt of 200mm once can be crushed all.
The present invention also provides the methods for carrying out butt crushing using above-mentioned Portable rotating drilling machine: in the feelings that need not dig out butt
Under condition, directly the butt of place in the soil is crushed on the spot using rotary drill machine.First start rotary drill machine when work, brill will be drawn and bored
Head alignment butt center, slightly firmly presses down, draws drill bit and drill out location hole;It is fixed close to the guiding blade drilling for drawing drill bit
Position hole periphery, location hole is expanded, and forms bellmouth: under the action of gravity and pressure, rotary drill with butt it is pulverized and
Go deep into bellmouth, the periphery of bellmouth is crushed by main blade drilling, until butt is crushed completely.
The specific steps of above-mentioned butt breaking method are as follows:
Step 1: after reaching operation field, power device, drive rod and rotary drill are successively assembled into Portable rotating drilling machine;
Step 2: starting power device checks, test Portable rotating drilling machine;
Step 3: holding handrail, and rotary drill is directed at butt center;
Step 4: it slightly firmly presses down, rotary drill drilling butt;
Step 5: after butt crushes, rotary drill is directed at next butt center, continues to crush;
Step 6: after completing butt crushed work, closing power device, and Portable rotating drilling machine is resolved into power device, transmission
Bar and rotary drill, in order to carry.
The invention has the benefit that when using set of blades rotary drill of the invention: drilling out location hole using drill bit is drawn;
Using guiding blade drilling location hole periphery, location hole is expanded, forms bellmouth: under the action of gravity and pressure, rotary drill
Several pieces main blades on head go deep into bellmouth as butt is pulverized, and the periphery of bellmouth is crushed by main blade drilling, until
Butt is crushed completely, and the butt for diameter no more than 200mm once can be crushed all.Draw drill bit and main blade uses
The mode of screw installation, can reconditioning or replacement positioning drill bit and blade, saved cost.
Portable rotating drilling machine can be split into easy to carry by Portable rotating drilling machine of the invention using being detachably connected
Component crushes sick tree butt in order to transport to forest complex area on the spot after re-assemblying.
The present invention also provides the methods for carrying out butt crushing using above-mentioned Portable rotating drilling machine: in the feelings that need not dig out butt
Under condition, directly the butt of place in the soil is crushed on the spot using rotary drill machine.Loose ends worm epidemic disease can timely and effectively be controlled
Feelings.
Detailed description of the invention
Fig. 1 is the schematic elevation view of set of blades rotary drill;
Fig. 2 faces partial enlargement diagram for set of blades rotary drill;
Fig. 3 is the schematic elevation view at the top of set of blades rotary drill;
Fig. 4 is the schematic elevation view of Portable rotating drilling machine;
Fig. 5 is the schematic cross-sectional view of drive rod;
In figure: 1-power device, 2-handrails, 3-drive rods, 4-rotary drills, 401-bit matrix, 402-are drawn brill and are bored
Head, 403-guiding blade, 404-main blades, 405-chip spaces, 406-connecting tubes, 407-pin holes, 408-auxiliary-blades,
5-pins.
Specific embodiment
Below by specific embodiment and in conjunction with attached drawing, the present invention will be further described:
Set of blades rotary drill 4 of the invention is as shown in Figures 1 to 3: including: bit matrix 401, draws drill bit 402, set of blades, row
Consider slot 405 and connecting tube 406 to be worth doing, the bit matrix 401 be it is round table-like, preferably the bus of rotary table is with axis of rotation inclination angle
36 ° of rotary table;Draw drill bit 402 described in being provided on the central axis at round table-like 401 top of the bit matrix, described
No less than two groups of the side setting of bit matrix 401 laterally uniformly distributed set of blades, between the set of blades described in adjacent two groups
It is provided with chip space 405, connecting tube 406, the connecting tube 406 are provided on bottom center's axis of the bit matrix 401
On be provided with radial pin hole 407.The set of blades includes a piece of guiding blade 403 and several pieces main blades 404, the main blade
404 are successively removably periodically installed at the side of the top-to-bottom of bit matrix 401.The sword of the guiding blade 403
Mouth is tangent with the cutting edge for drawing drill bit 402, the edge direction of the guiding blade 403 and the sword for drawing drill bit 402
Mouth direction is identical.404 spacing of adjacent main blade in same set of blades is not more than the width of main blade 404, two groups of adjacent knives
The installation site of main blade 404 in piece group mutually staggers.That is: when the bit matrix 401 rotation, wherein one group
The gap portion arrived without drilling in set of blades between adjacent main blade 404, can by 404 drilling of main blade of later group,
The arrangement mode of this blade is referred to as " arrangement is mutually mended in dislocation ", and this arrangement mode can ensure that part is cut in no leakage.
Start rotary drill machine when work, drill bit 402 will be drawn and be directed at butt center, slightly firmly pressed down, bored using drawing
First 402 drill out location hole;During pushing, using 403 drilling location hole periphery of guiding blade, location hole is expanded, shape
Tapered hole: under the action of gravity and pressure, several pieces main blades 404 in rotary drill 4 are deeply bored as butt is pulverized
The periphery in shape hole, bellmouth is crushed by 404 drilling of main blade, until butt is crushed completely, diameter is not more than between
The butt of 200mm once can be crushed all.
The main blade 404 is additionally provided with auxiliary-blade 408 close to the side on 401 top of bit matrix, bores downwards
During cutting, the auxiliary-blade 408 is capable of the timber of side of the drilling main blade 404 at the top of rotary drill 4, to reduce operator
Drilling resistance suffered by piece 404 avoids blocking rotary drill 4 due to drilling resistance is excessive.
The drill bit 402 that draws is connected along a variety of dismountable modes of 401 central axis of bit matrix, in the present embodiment
Draw the top that drill bit 402 is threadedly attached in the bit matrix 401, convenient for the set of blades rotary drill 4 on butt
Positioning.
The rotation direction of the threaded connection for drawing drill bit 402 is identical as the rotation direction of power device 1.To guarantee Portable rotary
Positioning drill bit 402 only the more can be revolved the more tight, will not be loosened when machine works.
The drill bit 402 that draws can be the drill bit of the diversified forms such as fluted drill, and positioning drill bit 402 uses in the present embodiment
Three slot carbide twist drill bits, can rapidly drill to butt, and fluted drill is at low cost, applied widely, convenient for buying.
The surface of the guiding blade 403, main blade 404 and auxiliary-blade 408 is provided with screw hole, solid by screw 405
It is scheduled on the side of the bit matrix 401.Blade is cemented carbide material, and hardness requirement is HRA89~94, can be dismantled
Reconditioning or more bit change and blade are carried out afterwards, have saved cost.
The chip space 405 is in the deeper arc-shaped straight trough for drawing and boring matrix 401 and opening up along axial direction, in order to hold
Bits and quick chip removal.
The embodiment one of Portable rotating drilling machine of the invention is as shown in Figure 4 and Figure 5: include: handrail 2, power device 1,
Drive rod 3 and rotary drill 4.
The handrail 2 is frame with handles, there is the pedestal with the power device 1 on the frame of the handrail 2
Power device 1, is mounted on the frame of handrail 2 by upper corresponding bolt hole with bolt assembly.
The upper end of the drive rod 3 and the output shaft of the power device 1 are detachably connected, the lower end of the drive rod 3
It is detachably connected with the rotary drill 4.Portable rotating drilling machine can be split into component easy to carry by this be detachably connected,
In order to transport to forest complex area, sick tree butt is crushed after re-assemblying on the spot.
The drive rod 3 be round tube, preferably wall thickness be 3~5mm round tube, the both ends of round tube be provided with respectively with power
Device 1 and the matched detachable connection part of rotary drill 4.To mitigate the weight of drive rod 3, increase the portability of Portable.
3 both ends of drive rod are respectively equipped with to be matched with the output shaft of power device 1 and 4 bottom connecting tube 406 of rotary drill
Detachable connection part, the detachable connection part can be pin hole and pin, is also possible to keyway and flat key, can also be with
It is spline connection, is also possible to flange bolt connection, can also be threaded connection.The present embodiment is using pin hole and pin
Connection type, the internal diameter of round tube one end of the drive rod 3 are slightly larger than the output shaft outer diameter of the power device 1, the transmission
The outer diameter of the round tube other end of bar 3 is slightly smaller than and the internal diameter of 4 bottom connecting tube 406 of rotary drill.In the output of the power device 1
It is provided with pin hole on axis, is provided with pin hole 407 in the 4 bottom connecting tube 406 of rotary drill, is set at 3 both ends of drive rod
It is equipped with pin hole 301;The upper end cap of the drive rod 3 is on the output shaft of the power device 1, when 3 upper end of drive rod
It is fixed that pin 5 is inserted into when pin hole 301 is overlapped with the pin hole on the output shaft of the power device 1;The lower end cap of the drive rod 3
In the 4 bottom connecting tube 406 of rotary drill, when the pin hole 301 of 3 lower end of drive rod is connect with 4 bottom of rotary drill
Insertion pin 5 is fixed when pin hole 407 on pipe 406 is overlapped.So that power device 1 is able to drive the rotation of rotary drill 4, thus drilling
Butt.It can simplify fixed connecting part by the way of pin hole, pin connection, reduce cost.
The selection of power device 1 is suitable for gasoline engine, diesel engine or the rechargeable motor of field work, preferably selects list
The position biggish two stroke gasoline engine of weight output power, reduces the weight of power device 1 as far as possible.The power device 1
Pedestal on have the bolt hole connecting with the frame of handrail 2, the output shaft of the power device 1 has radial pin hole.
The embodiment two of Portable rotating drilling machine of the invention is with the difference of embodiment one: the drive rod 3 of embodiment one is
Upper and lower ends all be using pin 5 respectively with 4 bottom connecting tube 406 of the pin hole of the output shaft of the power device 1 and rotary drill
Pin hole 407 connect.And the output shaft and 4 bottom connecting tube 406 of rotary drill of the power device 1 in embodiment two are all arranged
External screw thread, the drive rod 3 are that upper and lower ends are provided with and connect with the output shaft of the power device 1 and 4 bottom of rotary drill
The internal screw thread of the external screw thread cooperation of pipe 406, the rotation direction of screw thread is identical as rotation direction when 4 drilling of rotary drill, to guarantee whirler work
Rotary drill 4 only the more can be revolved the more tight, will not be loosened when making.
The present invention also provides the methods for carrying out butt crushing using above-mentioned Portable rotating drilling machine: in the feelings that need not dig out butt
Under condition, directly the butt of place in the soil is crushed on the spot using rotary drill machine.First start rotary drill machine when work, brill will be drawn and bored
First 402 alignment butt center, slightly firmly presses down, draws drill bit 402 and drill out location hole;Close to the guidance for drawing drill bit 402
403 drilling location hole periphery of blade, location hole is expanded, formed bellmouth: under the action of gravity and pressure, rotary drill 4 with
Butt it is pulverized and go deep into bellmouth, the periphery of bellmouth is crushed by 404 drilling of main blade, until butt is crushed completely,
Butt for diameter no more than 200mm once can be crushed all.
Above-mentioned butt breaking method includes the following steps:
Step 1: after reaching operation field, power device 1, drive rod 3 and rotary drill 4 are successively assembled into Portable rotating drilling machine;
Step 2: starting power device 1 checks, test Portable rotating drilling machine;
Step 3: holding handrail 2, and rotary drill 4 is directed at butt center;
Step 4: it slightly firmly presses down, 4 drilling butt of rotary drill;
Step 5: after butt crushes, rotary drill 4 is directed at next butt center, continues to crush;
Step 6: after completing butt crushed work, closing power device 1, and Portable rotating drilling machine is resolved into power device 1, is passed
Lever 3 and rotary drill 4, in order to carry.
In conclusion the invention has the benefit that when using set of blades rotary drill of the invention: being bored using drill bit is drawn
Location hole out;Using guiding blade drilling location hole periphery, location hole is expanded, forms bellmouth: in the work of gravity and pressure
Under, several pieces main blades on drill bit go deep into bellmouth as butt is pulverized, and the periphery of bellmouth is by main blade drilling powder
Broken, until butt is crushed completely, the butt for diameter no more than 200mm once can be crushed all.Draw drill bit and knife
Piece by the way of screw installation, can reconditioning or replacement positioning drill bit and blade, saved cost.
Portable rotating drilling machine can be split into easy to carry by Portable rotating drilling machine of the invention using being detachably connected
Component crushes sick tree butt in order to transport to forest complex area on the spot after re-assemblying.
The present invention also provides the methods for carrying out butt crushing using above-mentioned Portable rotating drilling machine: in the feelings that need not dig out butt
Under condition, directly the butt of place in the soil is crushed on the spot using rotary drill machine.Loose ends worm epidemic disease can timely and effectively be controlled
Feelings.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member without departing from the spirit and scope of the present invention, can also make a variety of changes or convert, therefore is all equivalent
Technical solution also should belong to protection scope of the present invention, and protection scope of the present invention should be limited by each claim.
Claims (10)
1. a kind of set of blades rotary drill, comprising: bit matrix (401) draws drill bit (402) and set of blades, described to draw drill bit
(402) it is arranged on the central axis on the round table-like bit matrix (401) top, it is characterised in that: in the bit matrix
(401) no less than two groups of side setting laterally uniformly distributed set of blades, includes a piece of guiding blade in every group of set of blades
(403) and several pieces main blades (404).
2. set of blades rotary drill according to claim 1, it is characterised in that: the drill bit (402) that draws removably is set
It sets at the top of the bit matrix (401) of truncated cone-shaped.
3. set of blades rotary drill according to claim 2, it is characterised in that: the drill bit (402) that draws is connected by screw thread
It connects at the top of the bit matrix (401), the hand of spiral of screw thread and the rotary drill direction of rotary drill are identical.
4. set of blades rotary drill according to claim 1, it is characterised in that: guiding blade (403) sum number in set of blades
Piece main blade (404) is successively mounted on to removable compartment the side of the top-to-bottom of bit matrix (401).
5. set of blades rotary drill according to claim 4, it is characterised in that: multiple operators in two groups of adjacent set of blades
It is arranged between piece (404) using the method that dislocation is mutually mended.
6. set of blades rotary drill according to claim 5, it is characterised in that: the main blade (404) is close to the drill bit
Side at the top of matrix (401) is also obliquely provided with auxiliary-blade (408).
7. set of blades rotary drill according to claim 6, it is characterised in that: in the bottom surface of the bit matrix (401)
It is provided in mandrel connecting tube (406), is provided with radial pin hole (407) on the connecting tube (406).
8. a kind of Portable rotating drilling machine, comprising: handrail (2), power device (1), drive rod (3) and rotary drill (4), the hand
Steady (2) is frame with handles, and the power device (1) is mounted on the frame of handrail (2), it is characterised in that: described
Rotary drill (4) be the set of blades rotary drill according to any one of claim 1 to 7, the upper end of the drive rod (3) with
The output shaft of the power device (1) is detachably connected, and lower end and the rotary drill (4) of the drive rod (3) detachably connect
It connects.
9. a kind of butt breaking method, it is characterised in that: in the case where butt need not be dug out, using according to claim 8 institute
The Portable rotating drilling machine stated directly crushes the butt of place in the soil on the spot;
First start rotary drill machine when work, drill bit (402) alignment butt center will be drawn, slightly firmly press down, draw drill bit
(402) location hole is drilled out;Close to guiding blade (403) the drilling location hole periphery for drawing drill bit (402), location hole is expanded,
Form bellmouth: under the action of gravity and pressure, rotary drill (4) gos deep into bellmouth as butt is pulverized, bellmouth
Periphery is crushed by main blade (404) drilling, until butt is crushed completely.
10. butt breaking method according to claim 9, the specific steps of the butt breaking method are as follows:
Step 1: after reaching operation field, power device (1), drive rod (3) and rotary drill (4) are successively assembled into portable
Rotary drill machine;
Step 2: starting power device (1) checks, test Portable rotating drilling machine;
Step 3: holding handrail (2), and rotary drill (4) are directed at butt center;
Step 4: it slightly firmly presses down, rotary drill (4) drilling butt;
Step 5: after butt crushes, rotary drill (4) is directed at next butt center, continue to crush;
Step 6: it after completing butt crushed work, closes power device (1), Portable rotating drilling machine is resolved into power device
(1), drive rod (3) and rotary drill (4), in order to carry.
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