CN1316816A - Digging device - Google Patents
Digging device Download PDFInfo
- Publication number
- CN1316816A CN1316816A CN00135259A CN00135259A CN1316816A CN 1316816 A CN1316816 A CN 1316816A CN 00135259 A CN00135259 A CN 00135259A CN 00135259 A CN00135259 A CN 00135259A CN 1316816 A CN1316816 A CN 1316816A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- rotor
- core bit
- rotating shaft
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 claims description 28
- 239000002826 coolant Substances 0.000 claims description 19
- 239000011796 hollow space material Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 15
- 229910001172 neodymium magnet Inorganic materials 0.000 claims description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 6
- 150000002910 rare earth metals Chemical class 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 11
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 description 26
- 238000005553 drilling Methods 0.000 description 11
- 238000005065 mining Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 239000012634 fragment Substances 0.000 description 6
- 229910003460 diamond Inorganic materials 0.000 description 5
- 239000010432 diamond Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 230000008093 supporting effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007799 cork Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241000239290 Araneae Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
An excavating device is provided to generate high torques by using an attached core bit, thus to easily replace the worn core bit and keep a core from readily fitting into the core bit. The excavating device(1) includes: a cylindrical rotor(32) provided in such a way as to be capable of penetrating a core bit(2); a cylindrical stator(33) provided on the outer periphery of the rotor; fixing parts(34a,34b) provided at both ends of the rotor to fasten the outer peripheral surface of the core bit disposed inside the cylindrical shape of the rotor, to thereby rotate the core bit as the rotor rotates; and a holding bar(4) passed through the cylindrical shape of the core bit to abut on the surface of a core(A) which is the part of concrete(C) inside the core bit.
Description
The present invention relates to a kind of excavating gear with cylindrical core bit, this core bit is used for along circumferential excacation material.
As the method for reinforcing the concrete walls of having built up, the method of the whole wall of a kind of well-known reinforcing is as follows: bore a macropore at first on the wall, in the opening in hole, add an iron brace (reinforce and use), with concrete the fixed part on above-mentioned brace and the internal surface of hole is combined then.At this moment, the structure in the hole forms fixed part on the opening inner surface by being contained in.
The hole that constitutes fixture is got out by following apparatus, and this device comprises: core bit 80, and it has cylindrical coring bit 80a, and this core bit is made of cylindrical parts, and the blade that diamond or carbide alloy are made is housed on the top of this cylindrical parts; And CD-ROM drive motor 81, it drives core bit and rotates around axis.
The rotary cutting work materials concrete eight 2 of the drill bit 81a of column core 83 by being contained in core bit 80 tops forms.Then, after the column core 83 that will stay fractures from root 83a, core bit 80 can be extracted from concrete eight 2.Form a hole as fixed part thus, for example diameter is the hole of 20～35mm, dark 200mm.
Adopt this method, when core bit 80 was taken out from concrete eight 2, column core 83 can together be pulled out with core bit 80 sometimes, and this column core 83 combines with core bit after root 83a fractures.
Be difficult to this moment column core 83 is transferred in core bit 80, therefore cause usability to reduce.
In addition, in the time will forming an above-mentioned hole in concrete eight 2, core bit 80 needs to produce very high moment of torsion, and requires core bit to have to be easy to change the structure of core bit 80.
Since on the motor 81 gear that is used for transfer torque is housed, whole motor weight is increased, operability difference and noise big (90dB or bigger).In addition, even motor height when rotation, its speed is also very low, be approximately 1500rpm (rev/min), even and adopt a kind of special motor, the also multipotency of its speed reaches 3000 to 3900rpm.Therefore make that excavation is chronic.
When adopting ultrasonic excavating gear to excavate, its noise is relatively low but excavation speed is also very low, but equally its excavation time also very long.
Therefore, the purpose of this invention is to provide a kind of excavating gear, this device has higher moment of torsion and speed, can finish dredge operation within a short period of time, and be easy to change waste and old core bit.In addition, also provide a kind of column core that makes to be difficult to be connected to the interior device of core bit, noise that this device produces is very low.
Excavating gear of the present invention has: a cylindrical core bit is used for along circumferential excacation material; A hollow type motor is used to drive above-mentioned core bit rotation.
Above-mentioned hollow motor comprises:
A cylindrical rotor, above-mentioned core bit passes wherein;
A cylinder shape stator, it is installed on the outer circumferential side of above-mentioned rotor; And
Be located at the fixed part of above-mentioned two ends of rotor,, above-mentioned core bit together rotated with rotor by combining with outer peripheral face at the core bit of rotor cylindrical inside.
Therefore, because the core bit that penetrates above-mentioned rotor cylindrical inside is fixed by the fixed part that is connected as a single entity with above-mentioned rotor, make this core bit can directly receive the rotation of rotor.That is to say,, make core bit can produce very high moment of torsion because the rotation of rotor is directly delivered on the core bit by fixed part.In addition, because the rotation of this device rotor is directly delivered on the core bit by fixed part, therefore the part that does not need to resemble gear and so on comes transfer torque, thereby has reduced noise.This device in fixed part fastening the outer peripheral face of core bit, can like a cork core bit be unclamped by opening this fastening part.Therefore, the maintenance work that resembles replacing core bit and so on also becomes and is easy to, thereby has improved the usability of this device.In addition, because core bit can be changed, can also select to have the cutting edge of different-thickness or shape.
The hollow motor is direct type motor, can directly drive the core bit rotation that drill bit is housed, and makes that the vibration of core bit on the rotating shaft direction is very little, thereby can realize the excavation of high speed rotating.Thereby compare with traditional low speed excavating gear, use this device can improve excavation speed significantly.
Therefore, each operation of drilling bore hole, and boring procedure soon all obtains shortening and operation is easier carries out required time.
Owing to adopt direct motor in this device, to compare with the device of engine, hydraulic motor or the electro-motor of traditional employing band gear, its noise significantly reduces (about 70dB).In addition, because number of parts has reduced, maintenance cost also significantly reduces.
Comprise a cylindrical core bit in the excavating gear of the present invention, be used for along circumferential excacation material; Also comprise a hollow motor that drives above-mentioned core bit rotation.
Above-mentioned hollow motor comprises:
A cylindrical rotor, the cylindrical rotating shaft that wherein has core bit on the top runs through in this rotor;
A cylinder shape stator, it is installed on the outer peripheral face of above-mentioned rotor;
A swivel joint, it links to each other with the rear end of rotating shaft and can wherein form stream with this axle rotation, is used for the cooling agent that flows out from coolant source is led.
Cooling agent is admitted in the through hole on the above-mentioned rotating shaft that together rotates by swivel joint and rotor, and the rear end from above-mentioned rotating shaft flows to front end then, this rotating shaft is cooled off, and need not to adopt cooling fan.
Therefore, when rotating shaft drives core bit rotation excacation material, cooling agent flows into the rear end of this rotating shaft through swivel joint, and the flowed through cooling agent of above-mentioned through-hole inner surface of the heat that produces in the hollow motor is taken away, and makes hollow motor inside obtain good cooling.
Motor in this device is direct type motor, directly drives the core bit rotation that is connected on the rotating shaft, thereby can make the rotating shaft high speed rotating, thereby the cooling agent of sending to from the rotating shaft rear end can be flowed along the through-hole inner surface on the rotating shaft of high speed rotating.Like this, just improved the cooling effectiveness of cooling agent greatly.
Compare with the cooling means of only sending air in hollow rotating shaft to, its cooling effectiveness significantly improves.
In addition, owing to need not adorn cooling fan on this excavating gear, so do not have sound of the wind during its work, therefore very quiet, volume is little, in light weight simultaneously.Cutting fragment or dust are not inhaled into this device, can prevent because the damage that the suction above-mentioned substance causes, and this damage are that the fan-cooled method of employing is common.
After rotating shaft stopped the rotation, the cooling agent that flows into the rotating shaft rear end continued to play cooling effect.Thereby can avoid because the damage that rotation causes after stopping.
After the through-hole inner surface that cooling agent flows through rotating shaft cools off the hollow motor, flow into core bit, then flow to the mining position of drilling tool on work materials.Therefore, the mining position that drill bit touches also can obtain cooling, and because cooling agent has played lubrication to mining position, makes digging operation carry out more smoothly.
Hollow motor among the present invention comprises:
Cylindrical rotor with hollow space, rotating shaft penetrate in this hollow space,
A cylinder shape stator, it is contained on the outer peripheral face of above-mentioned rotor, and
Fixed part, by with penetrate the rotor hollow space in the outer peripheral face of rotating shaft combine and drive above-mentioned rotating shaft and rotate with rotor.
Therefore, the rotating shaft that penetrates in the above-mentioned rotor hollow space is fixed by the fixed part that is connected as a single entity with above-mentioned rotor, so can directly receive the rotation of rotor.That is to say that because the rotation of rotor is directly delivered on the rotating shaft by fixed part, the part that does not need to resemble gear and so on comes transfer torque, therefore do not have slippages, thereby can make rotating shaft produce very high moment of torsion.In addition, the fixed part in this device is fastened to the outer surface of rotating shaft, can like a cork the rotating shaft clamper be unclamped by opening this fastening part.Therefore, the maintenance work that resembles replacing rotating shaft and so on becomes and is easy to, thereby has improved the usability of this device.
Hollow motor of the present invention is direct type motor, and its rotor is a hollow shape, and cylinder shape stator is contained on the outer circumferential side of above-mentioned rotor.End at rotor is equipped with the instrument of drilling through.Therefore, owing to drill through instrument directly by the rotor driven rotary, the loss of machine of torque on parts such as gear can not obtain very high moment of torsion.In addition, the number of parts in this device has also reduced as much as possible.
Fig. 1 is the cross-sectional view of an embodiment of excavating gear of the present invention.
Fig. 2 is a kind of cross-sectional view of hollow type motor, the structure of the hollow motor that is used for explaining that excavating gear of the present invention is used.
Fig. 3 is the cross-sectional view of the excavating gear that another embodiment explained of excavating gear of the present invention.
Fig. 4 is a kind of cross-sectional view of hollow type motor, the structure of the another kind of hollow motor that is used for explaining that excavating gear of the present invention is used.
Fig. 5 is the cross-sectional view of excavating gear in the example of another embodiment of the present invention.
Fig. 6 is a kind of cross-sectional view of hollow type motor, is used for explaining the structure of the hollow motor that the another kind of excavating gear of the present invention is used.
Fig. 7 is the rotating shaft and the rotor cross-section figure of another embodiment of the present invention, the mobility status of the rotating shaft of the hollow motor that is used for explaining that cooling agent is used in this embodiment.
Fig. 8 is the cross-sectional view of conventional excavating gear, is used to illustrate the structure of this device.
Set forth an embodiment of excavating gear of the present invention with reference to the accompanying drawings.
Fig. 1 illustrates the excavating gear of the present invention cross-sectional view of next embodiment in working order.Fig. 2 is the enlarged drawing of hollow type excavating gear pith.
Excavating gear 1 among Fig. 1 comprises: a cylindric core bit 2, and wherein drill bit 2a is contained in the top of this core bit 2, is used for along circumferential excacation material--concrete C; A hollow type motor 3 is in order to drive above-mentioned core bit 2 rotations; Down-pressed pole 4 (depressed portion), it penetrates the inside of the column part of above-mentioned core bit 2; And feeder 5, be used for above-mentioned hollow type motor 3 near or the direction of leaving concrete C surface transmit.Above-mentioned parts are installed in the shell 6, and this shell has a dismountable top and is centered around the cylinder side wall of core bit 2 outer radial periphery.
As shown in Figure 2, hollow type motor 3 comprises: have the rotor 32 of hollow space, core bit 2 can penetrate in this hollow space; Cylinder stator 33, it is contained in the outer circumferential side of rotor 32; And standing part 34a, 34b, it is installed in the two ends of rotor 32.
The drill bit 2a of core bit 2 makes with diamond or carbide alloy, is installed in the bottom of this cylindrical core bit, utilizes being rotated in of himself to form column core A among the concrete C, thereby this part concrete is excavated out.
The rotor 32 that is contained in stator 33 inboards is made the cylindrical of hollow, and it is made of cylinder 32a and cylinder runing rest 32b, and this support 32b contacts and links together with the inner peripheral surface of cylinder 32a, and extends to form along the length direction of core bit 2.Formed hollow space 32c vertically on the inner peripheral surface of runing rest 32b, this hollow space is a through hole, is used to make core bit 2 therefrom to pass.
At the upper wall 35a of casing 35 and the inside of lower wall 35b bearing 36a, 36b are housed, are used for supporting rotor 32 it is rotated freely.That is: the vertical end of the runing rest 32b of bearing 36a, 36b supporting rotor 32, its structure make its can bear affact core bit 2 with rotor 32 that this drilling tool 2 links to each other on impulsive force and radial load.
Standing part 34a, 34b are installed on the vertical end of rotor field spider 32b of rotor 32, are used for fixing the core bit 2 that penetrates hollow space 32c.These two standing part 34a, 34b are installed in the outside of upper wall 35a and lower wall 35b, and are installed on the vertical end of runing rest 32b of rotor 32.
Standing part 34a, 34b have chuck structure, i.e. for example drill chuck and scroll chuck, and penetrate the outer peripheral face of the core bit 2 among the hollow space 32c of rotor 32 by clamping and this core bit 2 is fixing.
In addition, in the hollow type motor, cooling fan 40 is installed in the top of runing rest 32b, and cooling air flows down from the inlet hole 37 of casing 35 top sides, and is blown into hollow motor 3 by the rotation of runing rest 32b.Then, above-mentioned cooling air flows through the gap between stator 33 and the rotor 32, or the space segment between stator 33 and the casing 35, and the steam vent 38 from the upper wall 35a of casing 35 is discharged.
In addition, label 39 expression brush parts, it is located on the periphery of above-mentioned runing rest 32b, and contacts above the casing 35 of hollow motor 3 with this runing rest 32b.Thereby make drive current to flow into the coil of rotor 32 from brush part 39.
The top that feeder 5 is used for the core bit 2 that will link to each other with hollow motor 3 be sent to be close with concrete C surface or away from direction, this device 5 links to each other with the part of hollow motor 3.This feeder 5 has guide rail 5a and pinion 5b, and the upper end of guide rail 5a links to each other with the top of shell 6, and the lower end is supported on the surface of concrete C.
That is to say, when the core bit 2 that links to each other with above-mentioned hollow motor 3 is sent to by feeder 5,, make concrete C be excavated out downwards along the cylinder direction because the pressure of the drill bit 2a of core bit 2 constantly acts on the concrete C.
On the other hand, when core bit 2 and hollow motor 3 are sent to device 5 when promoting to move up, core bit 2 is drawn out from concrete C.
Down-pressed pole 4 is inserted into the cylindrical interior of columned core bit 2, and its lower end is with the part of core bit 2 in concrete C--core A matches.
Down-pressed pole 4 separates mutually with hollow motor 3, and hollow motor 3 can be driven with the core bit that links to each other with this motor 2 by feeder 5 and move up and down.Therefore, when core bit 2 and hollow motor 3 moved up and down, the position of down-pressed pole 4 did not change.
The upper end of down-pressed pole 4 reaches the outside of shell 5, and available hand is depressed from the top.In addition, also down-pressed pole 4 can be installed on the shell 6.
The course of work of excavating concrete C with the excavating gear 1 with above-mentioned structure is as follows: at first, will serve as card and get standing part 34a, the 34b of structure and discharge, thereby make core bit 2 can penetrate the hollow space 32c of rotor 32.Then, core bit 2 is inserted among the hollow space 32c, its drill bit 2a is contacted with the outside of following fixed part 34b.
After core bit 2 is set to the inboard desired location of hollow space 32c, it is fixing tightly that two outer surfaces of core bit 2 are had standing part 34a, a 34b that card gets structure, and said fixing comprises that partly the card that lays respectively at above-mentioned hollow space 32b two ends gets structure.
Then, by give stator 33 (or rotor 32) go up around coil electricity drive the rotor 32 that links to each other with standing part 34a, 34b and rotate.Along with the rotation of rotor 32, the core bit 2 that links to each other with standing part 34a, 34b also becomes an integral body rotation.
Thus, make the drill bit 2a of core bit 2 contact with the surface of concrete C.At this moment, down-pressed pole 4 penetrates the cylindrical interior of core bit 2, and the lower end of this bar contacts with concrete C surface in being enclosed in core bit 2.
Simultaneously, the pinion 5b of feeder is driven to rotate, and core bit 2 and hollow motor 3 are sent to downwards.Along with sending to downwards of core bit 2, the pressure on 2 couples of concrete C of this core bit surface increases gradually, thereby concrete C is excavated along circumferential.
When concrete C is dug the required degree of depth by core bit 2, by feeder 5a core bit and hollow motor 3 are together regained, so that core bit 2 is extracted from concrete C.At this moment, when from upside with the end of down-pressed pole 4 to the surface that presses to column core A, core bit 2 just is pulled out.
After core bit 2 is extracted,, can prevent that this column core A and core bit 2 together are pulled out when column core A is cut off at root a1 place because down-pressed pole 4 is depressed to column core A place as mentioned above from concrete C.Therefore, have only core bit from concrete C, to be pulled out, and column core A still stay among the concrete C.
In addition, also can connect the cooling water feeder in the upper end of core bit 2, the interior side direction coring bit 2a by cylindrical core bit 2 in mining process sends cooling water to.Like this, the cooling water that the heat that upward produces owing to coring bit 2a is sent to is taken away, thereby has prolonged the useful life of drilling tool 2; And cooling water can also reduce splashing of concrete dust formation.
In addition, can also be inserted into the inside of coring bit 2a from cylindrical core bit 2 upper ends by the pipe that is linked to each other with vacuum plant, thereby with the dust or the fragment sucking-off that produce in the mining process.
After core bit 2 is removed from concrete C, can fractures and it is extracted from root a1 with the column core A that hand and other instruments will still be connected among the concrete C, thereby form a hole.
In addition, after the drill bit 2a of core bit 2 damages in mining process, the core bit 2 that can also more renew by the fixture that unloads standing part 34a, 34b.
Therefore, because core bit 2 penetrates the cylindrical cavity of above-mentioned rotor 32, and by standing part 32a, 32b (standing part 32b links to each other with above-mentioned rotor 32) fixes, and makes this core bit 2 can directly receive rotatablely moving of rotor 32.That is to say,, can directly drive rotor 32 rotations, make the rotation of rotor 32 be directly delivered on the core bit 2, thereby make core bit 2 produce very big moment of torsion by standing part 34a, 34b because hollow motor 3 is direct type motors.
The excavation of concrete C has stably been carried out.In addition, because the rotation of rotor 2 directly is delivered on standing part 34a, the 34b, does not therefore need, thereby make noise reduce as part transferring power such as gears.And then, because standing part 34a, 34b and core bit 2 outer peripheral faces are fastened, therefore only unclamp this fastening ability and will unclamp the clamping of core bit.
Be easy to carry out owing to resemble the maintenance work of replacing and so on of core bit 2, make the usability of this excavating gear be improved.And, because core bit 2 can be replaced, therefore can rotate the drill bit 2a of different-thickness and shape.
Excavating gear has hollow type motor 3, can directly drive core bit 2 rotation that drill bit 2a is housed, and this motor is called as the direct type motor of high rigidity, thereby makes as the vibration of the core bit 2 of rotating shaft very little.Therefore, can under high rotating speed, excavate, and compare its excavation speed with traditional low speed rotation situation and can increase significantly.
Thereby make drilling operation to carry out soon, and the operating time of various different operatings is shortened, easy and simple to handle.
Owing to use direct type motor, to compare with the electro-motor of band gear with hydraulic motor, noise can reduce (approximately 70dB) significantly.And, make the labour cost of maintenance work also reduce because the number of part is few.
In addition, when core bit 2 is pulled out from concrete C, because down-pressed pole 4 penetrates the cylindrical inside of core bit 2, the surface portion that is positioned at core bit 2 inside of column core A to pressing down, is made and has only core bit 2 to be pulled out and column core A still stays among the concrete C.Therefore,, thereby saved traditional column core A is operated from the difficulty that above-mentioned cylinder takes off, improved usability owing to column core A does not combine with the cylinder inboard of core bit 2.
Splashing of dust that shell 6 produces in the time of can preventing to excavate concrete C and fragment, and noise is reduced.
Because the magnet that adopts in rotor 32 or stator 33 is that high density Nd-Fe-B system or Sm-Co are the rare earth magnetite, it is very little to make that rotor 32 or stator 33 can make, thereby it is littler to make that motor can make, and weight is lighter.
Fig. 3 illustrates another embodiment of excavating gear 1 of the present invention.This excavating gear 1 has a down-pressed pole 4, and the top of this down-pressed pole 4 is location division 4a that are the acute angle tapering.
In the excavating gear 1 with down-pressed pole 4, drilling operation is to carry out under the situation of the location hole mark M on the location division of the down-pressed pole 4 4a aligning concrete C.
That is to say, in this excavating gear 1, position, drilling operation is enough accurately carried out by the mark M that the location division 4a on the down-pressed pole 4 is aimed on the concrete C.Meanwhile, down-pressed pole 4 can guarantee that column core A remains on the center, thereby has avoided the vibration of column core A.
Hole the fault that to avoid the interference owing to column core A and core bit 2 to cause by as stated above column core A being maintained.Therefore, can carry out good digging operation.
The following describes the another kind of hollow type motor 3 that uses in the excavating gear 1.
As shown in Figure 4, in this hollow type motor 3, the end that the runing rest 32b of rotor 32 is housed is outwards given prominence to, and outstanding runing rest 32b is called as link 41.Cylinder core bit 2A directly links to each other with the link 41 of runing rest 32b, and drill bit 2a is equipped with on the top of this drilling tool 2A.
Connecting one on the link 41 and be used for the adapter 42 that directly links to each other with core bit 2A, the link 41 on the runing rest 32b in the rotor 32 directly links to each other with core bit 2A by above-mentioned adapter 42.
In above-mentioned hollow motor 3, by giving the coil electricity on the stator 33 (or rotor 32), make core bit 2A and rotor 32 do as a wholely together to rotate, the link 41 in this core bit 2A and the rotor 32 on the runing rest 32b directly links to each other.Therefore, just can by with the drill bit 2a on core bit 2 tops and work materials for example concrete C etc. contact, thereby work materials is excavated out.
In above-mentioned hollow motor 3, because the rotation of rotor 32 is directly delivered on the instrument of drilling through, this instrument comprises a columniform core bit 2A, a drill bit 2a is equipped with on its top, make this drill bit 2a can be high the moment of torsion rotation, and the moment of torsion transmission loss that causes owing to parts such as having gear can not appear.
In addition, because core bit 2A is directly installed on and serves as an instrument on the rotor 32, can reduce the number of pre-workpieces to greatest extent.
Another excavating gear is described with reference to the accompanying drawings.In Fig. 5 and Fig. 6, symbol 51 expression excavating gears, the hollow type motor of installing in the above-mentioned excavating gear 51 of symbol 52 expressions.This excavating gear 51 has a special construction, and this structure has a bar 54 that is bearing on the pedestal 53, and by the above-mentioned hollow motor 52 of feeder 55 supportings, thereby above-mentioned hollow motor can be moved along above-mentioned bar 54.
The central part of hollow motor 52 has a cylindrical rotating shaft 61, and core bit 63 removably is connected on these rotating shaft 61 tops by adapter 62.Has the drill bit of along the circumferential direction making on the top of hollow tube 64 65 on this core bit 63 with diamond.
That is, this hollow motor 52 is direct type motors, drives the instrument that links to each other with rotating shaft 61--core bit 63 rotations.
The drill bit 65 that constitutes core bit 63 is diamond bits, and this drill bit is made by the diamond wear proof particle is cured to bonding agent such as metal or resin etc.
At upper wall 66a and lower wall 66b inside bearing 69a, 69b are installed, are used for supporting rotor 62 it is rotated freely.That is, the adjacent domain of bearing 69a, 69b supporting rotating shaft 61 upper and lower sides, this rotating shaft 61 is inserted in the center of rotor 67, and can bear the thrust that acts on rotating shaft 61 and the rotor 67 and pressure radially.
End at hollow motor 52 is equipped with a swivel joint 71.This swivel joint 71 is installed on the upper wall 66a of shell 66, and links to each other with the rear end of rotating shaft 61, can prevent that liquid from entering and can rotate freely.
71 places have formed flow channel 72 at swivel joint, and this passage links to each other with the through hole at rotating shaft 61 centers and is opened on the side of above-mentioned swivel joint 71.Pipe 74 links to each other with peristome 73, and cooling water (cooling fluid) is delivered to swivel joint 71 by this pipe 74.
The cooling water of sending into the flow channel 72 of swivel joint 71 from pipe 74 flows along the flow channel 72 of swivel joint 71, and flows into the through hole 61a of rotating shaft 61.Then, cooling water is admitted in the pipe 64 of core bit 63, and this core bit 63 is connected to the top of rotating shaft 61 by adapter 62.
In addition, symbol 75 expression brush, this brush upwards contacts with this rotating shaft in the periphery of above-mentioned rotating shaft 61 in the upper end of the shell 56 of hollow motor 52.Drive current offers motor through this brush 75.
For above-mentioned hollow motor 52 with rotor 62 and stator 63, brush motor or brushless motor all are suitable for.In addition, when on the rotor 67 coil being housed, may adorn magnet or coil on the stator 68.On the contrary, when on the rotor 67 magnet being housed, on the stator 68 coil may be housed.
The rotor 67 or the stator 68 that adopt have magnet, highdensity rare-earth magnet, for example: Nd-Fe-B based magnet or Sm-Co based magnet.
The following describes the course of work when drilling through work materials concrete C with above-mentioned excavating gear 51.
At first, the hollow motor 52 that is contained in cramp bar 54 upper ends is set in concrete C goes up predetermined bore position place, make this position of axis alignment of rotating shaft 61, simultaneously pedestal 53 is supported on the concrete C.
After being placed into excavating gear 51 on the concrete C, give the coil electricity on the rotor 67 (or stator) of hollow motor, drive rotor 67 high speed rotating, rotating speed is approximately 4000rpm.Cooling water is delivered to the excavating gear by pipe 74 from apparatus for supplying cool water then, and this apparatus for supplying cool water (cooling water source) is not shown in the drawings.
Like this, the cooling water of sending by pipe 74 from apparatus for supplying cool water is imported into the through hole 61a of rotating shaft 61 by the flow channel 72 of swivel joint 71.
In this case, the drill bit 65 of the core bit 63 that links to each other with rotating shaft 61 tops moves downward by feeder 55 drive hollow motors 52 and contacts with the surface of concrete C.Thereby in concrete C, form a circular hole H by the high speed rotating of drill bit 65.At this moment, be accompanied by the high speed rotating of above-mentioned rotating shaft 61, in hollow motor 52, the cooling water that flows into from the through hole 61a of rotating shaft 61 constantly flows to the upper end along the inner surface of above-mentioned rotating shaft 61 through holes.That is, the cooling water that flows into from the through hole 61a of rotating shaft 61 flows by the inner surface of rotating shaft 61 along the through hole 61a of rotating shaft 61, thereby is delivered to the upper end of above-mentioned through hole 61a, absorbs the interior heat that hollow motor 52 produces simultaneously.Therefore, the inboard of hollow motor 52 is well cooled off.
In addition, when cooling water flow along the inner surface of the through hole 61a of rotating shaft 61 and cooling hollow motor 52 after, cooling water flows in the pipe 54 of core bit 63, then flows to the position that drill bit 65 excavates concrete C.
At drill bit 65 places, mining position cools off by cooling water, and cooling water also played the effect of lubricant, and mining position is excavated easily, together discharges with fragment subsequently.
Thus, adopt above-mentioned excavating gear 51, cooling water is sent to from not shown cooling water source, flows to the through hole 61a of rotating shaft 61 from the above-mentioned rear end that is inserted into the rotating shaft 61 in the rotor 71 through swivel joint 71, and meanwhile rotating shaft 61 is driven to rotate.Then, concrete C is excavated by the drill bit 65 of core bit 63, and cooling water is mobile along the inner surface of through hole 61a.Therefore, the heat that produces in the hollow motor 52 is rotated axle 61 and absorbs, thereby the inner space of hollow motor is well cooled off.
That is to say, be the direct-type motor owing to what adopt in this excavating gear, can directly drive the rotating shaft 61 that core bit 63 is housed, and makes that rotating shaft can high speed rotating.Therefore just can make cooling water mobile along the inner surface of the through hole 61a on the rotating shaft 61 of high speed rotating, thereby improve cooling effectiveness significantly from the rear end of rotating shaft 61.Compare with the type of cooling of only sending cooling air to the hollow space of rotating shaft, the cooling effect of this type of cooling is much higher.
In addition, owing to do not need cooling fan, thereby 51 operations of this excavating gear get up very quietly, do not have sound of the wind, and can do very for a short time, and are very light.Compare with the air-cooled motor that cools off by fan, this device does not absorb fragment and dust, thereby has reduced the fault that causes thus.
When rotating shaft 61 stops the rotation,, thereby prevent to cool off the damage that stops to cause this device at once owing to rotation stops the back owing to rear end inflow can the continuation cooling of cooling water from rotating shaft 61.
Cross when cooling water flow rotating shaft 61 through hole 61a inner surface and after making hollow motor 52 obtain cooling, cooling water is transported in the core bit 63, then flow on the mining position of concrete C by drill bit 65, can be by drill bit 65 cooling mining positions.These cooling waters can serve as the lubricant of mining position, thereby make digging operation more level and smooth.
The profile of hollow motor 52 is sealed by shell 66, and by the water quench of the through hole 61a that flows into rotating shaft 61, thereby avoid fragment or dust to enter hollow motor 52 surely, and keep than the highland cooling effectiveness.Therefore, the fault of this excavating gear 51 seldom.
In addition, in the above-described embodiments, adopt water to do cooling agent.Can certainly do cooling agent with the liquid of other good cooling results, and arrive better cooling effect.
Claims (20)
1. excavating gear comprises:
A cylindrical core bit is equipped with one and is used for along the drill bit of circumferential excacation material on it;
A hollow type motor is used to drive above-mentioned core bit rotation;
This hollow motor comprises:
A cylindrical rotor, above-mentioned core bit penetrates therein;
A cylinder shape stator, it is installed on the outer circumferential side of above-mentioned rotor;
A fixed part, it is on each end of above-mentioned rotor, and linking to each other to fetch by the side face with the core bit that is positioned at above-mentioned rotor cylindrical inside drives above-mentioned core bit it is together rotated with above-mentioned rotor.
2. the excavating gear in the claim 1 comprises:
A down-pressed pole, it is contained in the cylindrical inside of above-mentioned core bit, matches with the work materials surface of above-mentioned core bit inside.
3. the excavating gear in the claim 2 comprises:
A location division, the diameter on this down-pressed pole top reduce to make this location division tapered gradually, and this location division is inserted on the above-mentioned work materials in the established location hole.
4. the excavating gear in the claim 1 comprises:
A feeder is sent above-mentioned hollow motor to vertically, makes the drill bit of above-mentioned core bit be toward or away from above-mentioned work materials.
5. the excavating gear in the claim 1 comprises:
A cylinder blanket is contained in the radial outside of above-mentioned core bit.
6. the excavating gear in the claim 1 is characterized in that:
The magnet that has Nd-Fe-B system or Sm-Co system on the rotor of above-mentioned hollow motor or the stator.
7. excavating gear comprises:
A cylindrical core bit is equipped with one and is used for along the drill bit of circumferential excacation material on it;
A hollow type motor is used to drive above-mentioned core bit rotation;
This hollow motor comprises:
The cylindrical rotating shaft that a cylindrical rotor, top are equipped with core bit penetrates therein;
A cylinder shape stator, it is installed on the outer circumferential side of above-mentioned rotor;
A swivel joint, it links to each other with the rear end of rotating shaft, and has formed stream therein, in order to the rotating shaft that will lead from the cooling agent that coolant source is sent to;
A kind of cooling agent, it flows into through above-mentioned swivel joint in the through hole of above-mentioned rotating shaft by the rotor driven rotary, and the rear end along the inner surface of above-mentioned through hole from rotating shaft flows to front end then, makes above-mentioned rotating shaft obtain cooling, and need not to adopt cooling fan.
8. the excavating gear in the claim 7 is characterized in that:
Above-mentioned rotor and rotating shaft are fixedly connected into an integral body.
9. the excavating gear in the claim 7 is characterized in that:
The outer circumferential side of above-mentioned hollow motor seals by shell.
10. the excavating gear in the claim 7 comprises:
A feeder in order to above-mentioned hollow motor is transmitted vertically, makes the drill bit of above-mentioned core bit be toward or away from above-mentioned work materials.
11. the excavating gear of claim 7 is characterized in that:
The rare-earth magnet that has Nd-Fe-B system or Sm-Co system on the rotor of above-mentioned hollow motor or the stator.
12. a hollow motor comprises:
A rotor has a hollow space that wherein is penetrated with rotating shaft;
A cylinder shape stator, it is installed on the outer circumferential side of above-mentioned rotor;
A fixed part, it is connected on each end of above-mentioned rotor, is connected by the side face with the rotating shaft that runs through above-mentioned rotor hollow space, drives above-mentioned rotating shaft it is together rotated with above-mentioned rotor.
13. the hollow motor in the claim 12 is characterized in that:
Above-mentioned rotating shaft is transparent cylindrical, is equipped with standing part at the two ends of above-mentioned rotor.
14. the hollow motor in the claim 12 is characterized in that:
The rare-earth magnet that has Nd-Fe-B system or Sm-Co system on the rotor of above-mentioned hollow motor or the stator.
15. a hollow shape motor comprises:
A hollow shape rotor;
A cylinder shape stator, it is contained on this rotor outer circumferential side;
One drills through instrument, and it is directly installed on the end of above-mentioned rotor.
16. the hollow motor in the claim 15 comprises:
A rotor, a cylindrical rotating shaft is applied in wherein;
A swivel joint, it links to each other with the rear end of rotating shaft, has wherein formed stream, in order to the through hole of the rotating shaft that will lead from the cooling agent that coolant source is sent to;
A kind of cooling agent, it flows into above-mentioned by in the rotating shaft of rotor driven rotary through above-mentioned swivel joint, and the rear end along the inner surface of above-mentioned through hole from rotating shaft flows to front end then, makes above-mentioned rotating shaft obtain cooling, and need not to adopt cooling fan.
17. the hollow motor in the claim 16 is characterized in that:
Above-mentioned rotor and stator are fixedly connected into an integral body.
18. the excavating gear in the claim 16 is characterized in that:
The outer circumferential side of above-mentioned hollow motor seals by shell.
19. right is wanted the excavating gear in 15, it is characterized in that:
The above-mentioned instrument that drills through is a columniform core bit, and wherein drill bit is installed in the top of core bit.
20. the excavating gear of claim 15 is characterized in that:
The rare-earth magnet that has Nd-Fe-B system or Sm-Co system on the rotor of above-mentioned hollow motor or the stator.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000019181A JP2001057757A (en) | 1999-06-11 | 2000-01-27 | Hollow motor |
| JP19181/2000 | 2000-01-27 | ||
| JP34198/2000 | 2000-02-10 | ||
| JP2000034198A JP2001055884A (en) | 1999-06-11 | 2000-02-10 | Excavating device |
| JP2000054814A JP2001241284A (en) | 2000-02-29 | 2000-02-29 | Excavation device |
| JP54814/2000 | 2000-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1316816A true CN1316816A (en) | 2001-10-10 |
Family
ID=27342160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00135259A Pending CN1316816A (en) | 2000-01-27 | 2000-12-11 | Digging device |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20010077918A (en) |
| CN (1) | CN1316816A (en) |
| SG (1) | SG165140A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949259A (en) * | 2010-10-15 | 2011-01-19 | 肖双喜 | Multifunctional shale electric drill |
| CN102185401A (en) * | 2011-05-09 | 2011-09-14 | 北京交通大学 | High speed permanent magnet synchronous motor rotor |
| CN106226119A (en) * | 2016-07-20 | 2016-12-14 | 辽宁省水利水电科学研究院 | A kind of concrete undisturbed harvester |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4053297B2 (en) * | 2001-04-11 | 2008-02-27 | 三菱マテリアル株式会社 | Grinding material and drilling method using the same |
| KR100938939B1 (en) * | 2007-11-27 | 2010-01-27 | 박정열 | Drilling machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5629623A (en) * | 1992-07-30 | 1997-05-13 | Schlumberger Technology Corporation | Pulsed nuclear magnetism tool for formation evaluation while drilling |
| US5346775A (en) * | 1993-02-22 | 1994-09-13 | At&T Laboratories | Article comprising solder with improved mechanical properties |
-
2000
- 2000-08-18 SG SG200004636-7A patent/SG165140A1/en unknown
- 2000-11-08 KR KR1020000066148A patent/KR20010077918A/en not_active Application Discontinuation
- 2000-12-11 CN CN00135259A patent/CN1316816A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949259A (en) * | 2010-10-15 | 2011-01-19 | 肖双喜 | Multifunctional shale electric drill |
| CN102185401A (en) * | 2011-05-09 | 2011-09-14 | 北京交通大学 | High speed permanent magnet synchronous motor rotor |
| CN106226119A (en) * | 2016-07-20 | 2016-12-14 | 辽宁省水利水电科学研究院 | A kind of concrete undisturbed harvester |
| CN106226119B (en) * | 2016-07-20 | 2023-07-04 | 辽宁省水利水电科学研究院有限责任公司 | Concrete undisturbed sample collection system |
Also Published As
| Publication number | Publication date |
|---|---|
| SG165140A1 (en) | 2010-10-28 |
| KR20010077918A (en) | 2001-08-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1273717C (en) | Tool, device, and method for drilling | |
| CN1254353C (en) | Boring device and boring method | |
| CN1661237A (en) | Electric pump | |
| CN1009847B (en) | Air pressure impact drilling method and apparatus for same | |
| CN1411953A (en) | Clamping device with top cover and top cover for clamping device | |
| CN1316816A (en) | Digging device | |
| CN1250376C (en) | High speed boring appts. | |
| JP2010052215A (en) | Rotary tool | |
| CN1629487A (en) | Eccentric coupling device in radial compliance scroll compressor | |
| CN101056017A (en) | Axial fan motor | |
| CN105735894A (en) | Mechanism used for shallow well drilling | |
| CN209444271U (en) | A kind of pouring pile hole system | |
| KR100665206B1 (en) | Head for machine tools | |
| JP2008183897A (en) | Rotary excavation tool, road surface excavating device, and road surface excavating method | |
| CN1792530A (en) | Method and device for the production of bores | |
| CN110170681B (en) | Mini electric drill | |
| CN209532297U (en) | The facing attachment in oiling aperture on sliding bearing inner wall | |
| KR200361369Y1 (en) | a water supplying sturcture for a rock drilling apparatus | |
| EP1059417A2 (en) | Excavation equipment | |
| RU2000109994A (en) | CIRCULAR ELECTRIC DRILL | |
| CN219703580U (en) | Drilling device for turbine shroud | |
| CN217912429U (en) | Front spring support adds clamping apparatus immediately | |
| CN218598167U (en) | Drill bit replacing equipment | |
| CN220408058U (en) | Machine tool protective cover unit metal plate machining equipment | |
| CN213289703U (en) | Carbide drill bit crew cut chamfer processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |