CN202755890U - Walking type double circling downhole drill - Google Patents
Walking type double circling downhole drill Download PDFInfo
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- CN202755890U CN202755890U CN 201220481742 CN201220481742U CN202755890U CN 202755890 U CN202755890 U CN 202755890U CN 201220481742 CN201220481742 CN 201220481742 CN 201220481742 U CN201220481742 U CN 201220481742U CN 202755890 U CN202755890 U CN 202755890U
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Abstract
The utility model discloses a walking type double circling downhole drill which comprises a pile frame main body and a drill main body, wherein the drill main body comprises an upper power head, a lower power head, an outer sleeve, an auger stem and a downhole hammer, wherein the upper power head is connected with the top of the auger stem, the bottom of the auger stem is connected with the downhole hammer. When the upper power head works, the upper power head drives the auger stem and the downhole hammer to rotate clockwise, the lower power head is connected with the outer sleeve. When the lower power head works, the lower power head drives the outer sleeve to rotate anticlockwise. The downhole hammer comprises an impactor and an impact hammer, and the head of the impact hammer exposes out of a lower opening of the outer sleeve. A high pressure air channel is arranged in the drill main body, and high pressure air is blown out from the bottom of the impact hammer through the upper power head, a buffer, the auger stem and the impactor. The walking type double circling downhole drill has the advantages that soil taking and hole forming are achieved in a dry method, and pollution does not occur; the drill is suitable for various kinds of geography and strata such as hard lithosphere, tundra, a sand bed with rich ground water, metalling, boulders and other complex strata difficult to complete through other pile machines; and operation efficiency is high.
Description
Technical field
The utility model relates to a kind of constructional engineering machinery, is specifically related to the two convolution down-the-hole drills of a kind of walking.
Background technology
Rig (stake machine) is mainly used in the building site of construction work.The rig of prior art, most of wet method hole creating technology that adopts, namely drill bit need add in a large number water and make soil layer become the laggard line output of mud in going down process, and the stake hole could form gradually.The shortcoming of this kind rig: pollute greatly, need to expend great lot of water resources, can not adapt to the bad grounds such as sand bed such as hard lithosphere, frozen soil layer, rich groundwater, macadam, boulder.Also have relatively small number of rigs to adopt the dry method hole creating technology, can adapt to than the complex geological conditions environment, but need the bucket frequent movement that soil layer is exported, the stake hole could form inefficiency gradually.In addition, guarantee that rig is working long hours under good operating mode, need all parts of rig, particularly the hole common coordinated of each parts of main body just can finish.
Summary of the invention
In view of the problem that present known technology exists, the technical problems to be solved in the utility model is to be to provide a kind of dry extracting soil pore-forming, is adapted to the stratum that various geology and other machine are difficult to finish, the two convolution down-the-hole drills of the walking of high efficiency.
The utility model is implemented by following technical solution:
The two convolution down-the-hole drills of walking, comprise pile frame main body and boring main body, the pile frame main body comprises the walking chassis, column, diagonal brace mechanism, hoist engine and assembly pulley, it is characterized in that: the boring main body comprises unit head, lower unit head, outer tube, auger stem and down-hole hammer, upper unit head is connected with the top of auger stem by snubber, the endoporus that lower unit head and outer tube are provided with is passed in the auger stem activity, the bottom of auger stem is connected with down-hole hammer, drive auger stem during upper unit head work, down-hole hammer clockwise rotates, lower unit head is connected with outer tube, driving outer tube during lower unit head work rotates counterclockwise, down-hole hammer comprises impactor and jump bit, and the tup of jump bit exposes to the outer tube under shed; Establish the gases at high pressure passage of mutual perforation in snubber, auger stem, impactor and the jump bit, the gases at high pressure that air compressor machine is produced are connected the import of gases at high pressure passage by high-pressure air pipe behind oil fog generator, gases at high pressure outwards blow out from the jump bit bottom at last through upper unit head, snubber, auger stem, impactor.
The utility model adopts the dry method hole creating technology, its pore-forming principle is such: (or the frozen soil layer in the lithostratigraphy, macadam, other bad ground such as boulder), when gases at high pressure arrive impactor by the auger stem endoporus, impactor will make jump bit impact rock and start working, rock is washed into gallet, the high pressure gas cognition that outwards blows out from the jump bit bottom is simultaneously blown gallet and is returned to the helical blade of auger stem, because being subject to the unit head drive, auger stem clockwise rotates, and outer tube is rotated counterclockwise by lower unit head drive, so gallet is just upwards carried along helical blade from meeting always, until be output from the mud mouth of lower unit head, the stake hole forms fast, efficient is high, and the workload that conventional impact is bored the stake three day time of machine only needed just can finish in 1 hour; For the sand bed of rich groundwater, because there is outer tube that the stake hole is protected, so also can get fast a hole.Main feature of the present invention: the dry extracting soil pore-forming, pollution-free; Be adapted to the stratum that various geology and other machine are difficult to finish, such as bad grounds such as the sand bed of hard lithosphere, frozen soil layer, rich groundwater, macadam, boulders; High efficiency.
Described impactor comprises steel pipe, tool joint, one way valve, cylinder sleeve and impact head, it is suitable for reading that tool joint is connected in steel pipe, tool joint is connected with the bottom of described auger stem, one way valve is located at steel tube inner hole, one way valve comprises valve head, spring and valve seat, leave inlet chamber between valve seat upper surface and the tool joint, inlet chamber communicates with the air inlet that tool joint is provided with, valve head is located at the valve seat top, spring is located at the valve head bottom, valve head is blocked air inlet under spring action, part is sheathed at cylinder sleeve bore under the valve seat, the cylindrical of part is provided with cannelure under the valve seat, cannelure communicates with the vertical hole of inlet chamber by valve seat, cylinder sleeve is sheathed at steel tube inner hole, leave the air-flow passageway between cylinder sleeve cylindrical and the steel tube inner hole, the air-flow passageway communicates by the upper transverse holes that cylinder sleeve is provided with cannelure, cylinder sleeve also is provided with lower transverse holes, cylinder sleeve bore between the transverse holes is provided with vertical slot up and down, described impact head arranges in the cylinder sleeve underside, impact head is the large cylinder in middle little two, upper cylinder and cylinder sleeve bore are slidingly matched, lower prop and steel tube inner hole are slidingly matched, the cylinder epimere of lower prop is provided with bar-shaped trough, the steel tube inner hole corresponding with the cylinder hypomere is provided with annular groove, impact head is provided with and runs through axially extending bore up and down, the bottom surface of described valve seat is provided with the plunger corresponding with axially extending bore, the plunger cylindrical, surround air chamber between cylinder sleeve bore and the impact head upper surface; Lower position at impact head, bar-shaped trough and annular groove partly intersect, gases at high pressure arrive the impact head bottom through inlet chamber, vertical hole, cannelure, upper transverse holes, air-flow passageway, bar-shaped trough, annular groove, upper limit position at impact head, bar-shaped trough and annular groove stagger fully, gases at high pressure enter air chamber through inlet chamber, vertical hole, cannelure, upper transverse holes, air-flow passageway, lower transverse holes, vertical slot, and the while plunger enters axially extending bore axially extending bore is blocked.
The technique scheme of impactor is simple in structure, the course of work is such: in the lower position of impact head, bar-shaped trough and annular groove partly intersect, gases at high pressure arrive impactor by the auger stem endoporus, enter and promote valve head from the air inlet of tool joint and move downwards, gases at high pressure enter inlet chamber, then gases at high pressure are through vertical hole, cannelure, upper transverse holes, the air-flow passageway, bar-shaped trough, annular groove arrives the bottom of impact head, so gases at high pressure promote upwards action of impact head, when the impact head certain distance that moves upward arrives upper limit position, plunger entered axially extending bore axially extending bore was blocked this moment, bar-shaped trough and annular groove stagger fully, blocked the bottom of gases at high pressure by annular groove arrival impact head, gases at high pressure are through inlet chamber, vertical hole, cannelure, upper transverse holes, the air-flow passageway, lower transverse holes, vertical slot enters air chamber, pounding the impact capitate under gases at high pressure promotion impact head is rapid becomes to impact, gases at high pressure blow out outward by the bottom of axially extending bore from jump bit simultaneously, after one-shot is finished, impact head is got back to original position, impact head will be again upwards lifted by gases at high pressure to be pounded under rear, thereby the impact capitate becomes bump, the pile hole work of down-the-hole drill is constantly deeply carried out, and the above-mentioned course of work is reliable and stable.
Described snubber comprises sleeve pipe, piston rod and piston, the upper end of sleeve pipe is connected with end cap, the lower end of sleeve pipe is connected with the drilling rod lower contact, the drilling rod lower contact is connected with the top of described auger stem, the endoporus of sleeve pipe is comprised of top and the bottom, top is divided into plunger shaft, the bottom is divided into interior hexagonal square hole, described piston slides to arrange in plunger shaft and is connected with piston rod, the top of piston rod is stretched out outside the end cap and is connected with the drilling rod top connection, and the drilling rod top connection is connected with described upper unit head, and the bottom of piston rod is connected with the outer-hexagonal body of rod, the setting of sliding in interior hexagonal square hole of the outer-hexagonal body of rod, described snubber are provided with the gas channel that axially connects from top to bottom whole snubber.
After snubber adopts technique scheme, can realize carrying out synchronously carry-over moment, buffering and the action of transmission gases at high pressure, 1. carry-over moment: upper unit head rotation can drive drilling rod top connection, piston rod, the outer-hexagonal body of rod and rotate, and then drive arranges the rotation of sleeve of interior hexagonal square hole, rotation of sleeve then drives the drilling rod lower contact and rotates, and rotates the transmission that realizes moment thereby drive auger stem; 2. cushion: plunger shaft is separated into upper chamber and lower chamber by piston, upper chamber and lower chamber are closed air chamber, when the impact endurance test shock of jump bit passes back to snubber by the drilling rod lower contact, the position of piston in plunger shaft can change, the air that be closed in upper chamber and the lower chamber this moment can play cushioning effect to the action of piston, avoids impact endurance test shock to be directly delivered to upper unit head by the drilling rod top connection work of upper unit head is impacted; 3. transmission gases at high pressure: snubber is provided with the gas channel that axially connects from top to bottom whole snubber, so the high pressure gas physical efficiency is sent to the drilling rod lower contact by gas channel from the drilling rod top connection, enters the auger stem endoporus by the drilling rod lower contact again.
Described oil fog generator comprises gas tank and oil tank, and gas tank is provided with air inlet port and gas outlet, and oil tank is provided with oil filler, and oil tank is located at the gas tank top, and tank bottom is provided with flowline and gas tank is connected, and also is provided with the gas balance pipe between oil tank and the gas tank.
The oil fog generator of technique scheme, oil tank is located at the gas tank top, pressure during work in the oil tank and the pressure in the gas tank are by gas balance pipe balance, lubrication oil in the oil tank is to flow into gas tank in the deadweight mode by flowline, fuel feeding is stable, so mist of oil occurs stable, stable because mist of oil occurs, the sufficient lubrication when having guaranteed each component working of drill main body.
In sum, the utility model is simple in structure, can guarantee to work long hours under good operating mode, and have following main feature: the dry extracting soil pore-forming, and pollution-free; Be adapted to the stratum that various geology and other machine are difficult to finish, such as bad grounds such as the sand bed of hard lithosphere, frozen soil layer, rich groundwater, macadam, boulders; High efficiency.Compared with prior art, the utlity model has substantive distinguishing features and progress.
Description of drawings
The utility model has following accompanying drawing:
Fig. 1 is general structure schematic diagram of the present utility model,
Fig. 2 is the structural representation of impactor,
Fig. 3 is the structural representation of snubber,
Fig. 4 is the structural representation of oil fog generator.
The specific embodiment
Describe details and the operating principle of the utility model specific embodiment in detail below in conjunction with accompanying drawing:
As shown in Figure 1, the two convolution down-the-hole drills of walking of the present utility model, comprise the pile frame main body, the boring main body, oil fog generator 8 and air compressor machine 1, the pile frame main body comprises walking chassis 10, column 14, diagonal brace mechanism 13, hoist engine 11 and assembly pulley 15, the boring main body comprises unit head 7, lower unit head 5, outer tube 4, auger stem 3 and down-hole hammer (being formed by impactor 2 and jump bit 1), upper unit head 7 is connected with the top of auger stem 3 by snubber 6, the endoporus that lower unit head 5 and outer tube 4 are provided with is passed in auger stem 3 activities, the bottom of auger stem 3 is connected with down-hole hammer, drive auger stem 3 during upper unit head 7 work, down-hole hammer clockwise rotates, lower unit head 5 is connected with outer tube 4, driving outer tube 4 during lower unit head 5 work rotates counterclockwise, down-hole hammer comprises impactor 2 and jump bit 1, and the tup of jump bit 1 exposes to outer tube 4 under sheds; Establish the gases at high pressure passage of mutual perforation in snubber 6, auger stem 3, impactor 2 and the jump bit 1, the gases at high pressure that air compressor machine 9 is produced are connected the gases at high pressure passage of being located at upper unit head 7 places by high-pressure air pipe 12 behind oil fog generator 8 import, gases at high pressure outwards blow out from jump bit 1 bottom at last through upper unit head 7, snubber 6, auger stem 3, impactor 2.
As shown in Figure 2, described impactor comprises steel pipe 21, tool joint 28, one way valve, cylinder sleeve 25 and impact head 22, it is suitable for reading that tool joint 28 is threadedly connected to steel pipe 21, tool joint 28 is connected with the bottom of described auger stem 23, one way valve is located at steel pipe 21 endoporus, one way valve comprises valve head 30, spring 27 and valve seat 26, leave inlet chamber 31 between valve seat 26 upper surfaces and the tool joint 28, inlet chamber 31 communicates with the air inlet 29 that tool joint is provided with, valve head 30 is located at valve seat 26 tops, spring 27 is located at valve head 30 bottoms, 30 pairs of air inlets 29 of valve head are blocked under spring 27 effects, 26 times parts of valve seat are sheathed at cylinder sleeve 25 endoporus, the cylindrical of 26 times parts of valve seat is provided with cannelure 33, cannelure 33 communicates with the vertical hole 32 of inlet chamber 31 by valve seat, cylinder sleeve 25 is sheathed at steel pipe 21 endoporus, leave air-flow passageway 35 between cylinder sleeve 25 cylindricals and steel pipe 21 endoporus, air-flow passageway 35 communicates by the upper transverse holes 34 that cylinder sleeve is provided with cannelure 33, cylinder sleeve also is provided with lower transverse holes 37, cylinder sleeve bore between the transverse holes is provided with vertical slot 36 up and down, described impact head 22 is in cylinder sleeve 25 underside settings, impact head 22 is the large cylinder in middle little two, upper cylinder and cylinder sleeve 25 endoporus are slidingly matched, lower prop and steel pipe 21 endoporus are slidingly matched, the cylinder epimere of lower prop is provided with bar-shaped trough 39, steel pipe 21 endoporus corresponding with the cylinder hypomere are provided with annular groove 40, impact head 22 is provided with and runs through axially extending bore 38 up and down, the bottom surface of described valve seat 26 is provided with the plunger 23 corresponding with axially extending bore 38, plunger 23 cylindricals, surround air chamber 24 between cylinder sleeve 25 endoporus and impact head 22 upper surfaces; Lower position at impact head 22, bar-shaped trough 39 and annular groove 40 parts are intersected, gases at high pressure arrive impact head 22 bottoms through inlet chamber 31, vertical hole 32, cannelure 33, upper transverse holes 34, air-flow passageway 35, bar-shaped trough 39, annular groove 40, upper limit position at impact head 22, bar-shaped trough 39 and annular groove 40 stagger fully, gases at high pressure enter air chamber 24 through inlet chamber 31, vertical hole 32, cannelure 33, upper transverse holes 34, air-flow passageway 35, lower transverse holes 37, vertical slot 36, and while plunger 23 enters 38 pairs of axially extending bores 38 of axially extending bore and blocks.In Fig. 2, jump bit 1 is connected in the bottom of steel pipe 21 in addition, and the top of jump bit 1 contacts with the bottom of impact head 22, and jump bit 1 is by steel pipe 21 driven rotary, and jump bit 1 is provided with and advances the gas hole 41 that the bottom goes out from the top.
As shown in Figure 3, described snubber comprises sleeve pipe 66, piston rod 62 and piston 65, the upper end of sleeve pipe 66 is fixedly connected with end cap 63, the lower end of sleeve pipe 66 is fixedly connected with drilling rod lower contact 70, drilling rod lower contact 70 is connected with the top of described auger stem 3, the endoporus of sleeve pipe 66 is comprised of top and the bottom, top is divided into plunger shaft, the bottom is divided into interior hexagonal square hole 69, described piston 65 slides to arrange in plunger shaft and is connected with piston rod 62, the top of piston rod 62 is stretched out outside the end cap 63 and is connected with drilling rod top connection 61, drilling rod top connection 61 is connected with upper unit head 7, the bottom of piston rod 62 is connected with the outer-hexagonal body of rod 68, the outer-hexagonal body of rod 68 is in interior hexagonal square hole 69 interior slip settings, drilling rod top connection 61, piston 65, piston rod 62 and the outer-hexagonal body of rod 68 are integrally-built rod member, and described snubber is provided with the gas channel 71 that axially connects from top to bottom whole snubber, and gas channel 71 is by the endoporus of overall structure rod member, the endoporus of tracheae 72 endoporus and drilling rod lower contact 70 forms jointly; The snubber of installation, the plunger shaft on piston 65 tops forms the upper chamber 64 of sealing, and the plunger shaft of piston 65 bottoms forms the lower chamber 67 of sealing.
As shown in Figure 4, described oil fog generator comprises gas tank 83, oil tank 86, base 81 and support 85, gas tank 83 is fixedly mounted on the base 81, oil tank 86 is located at gas tank 83 tops and is fixedly mounted on the support 85, support 85 is in gas tank 83 fixed installations, gas tank 83 is provided with three air inlet ports 82 and a gas outlet, three air inlet ports are arranged side by side in a side of gas tank, the gas outlet is in the opposite side setting of gas tank, gas tank 83 tops also are provided with safety valve 84, oil tank 86 tops are provided with oil filler 87, oil tank 86 sides are provided with content gauge 88, oil tank 86 bottoms are provided with flowline 91 and connect with gas tank 83, flowline 91 is provided with control valve 89 and transparent observing mouth 92, transparent observing mouth 92 is located at the below of control valve 89, also is provided with gas balance pipe 90 between oil tank 86 and the gas tank 83, and the two-port of gas balance pipe 90 is located at respectively top and oil tank and the gas tank connection of oil tank and gas tank.The advantage of above-mentioned oil fog generator: mist of oil occurs stable, the fuel consumption controllable visual, that the oil-gas ratin of mist of oil occurs is adjustable, for a long time large capacity work.
The utility model adopts the dry method hole creating technology, its pore-forming principle is such: (or the frozen soil layer in the lithostratigraphy, the sand bed of rich groundwater, macadam, other bad ground such as boulder, or general geology environment), the gases at high pressure that air compressor machine 9 is produced are connected the gases at high pressure passage by high-pressure air pipe 12 behind oil fog generator 8, gases at high pressure are through upper unit head 7, snubber 6, auger stem 3, impactor 2, outwards blow out from jump bit 1 bottom at last, when gases at high pressure arrive impactor 2 by auger stem 3 endoporus, impactor 2 will make jump bit 1 impact rock and start working, rock is washed into gallet, the high pressure gas cognition that outwards blows out from jump bit 1 bottom is simultaneously blown gallet and is returned to the helical blade of auger stem 3, because being subject to unit head 7 drives, auger stem 3 clockwise rotates, and outer tube 4 is rotated counterclockwise by lower unit head 5 drives, so gallet is just upwards carried along helical blade from meeting always, until be output from the mud mouth of lower unit head 5, the stake hole forms fast.Main feature of the present utility model: the dry extracting soil pore-forming, pollution-free; Be adapted to the stratum that various geology and other machine are difficult to finish, such as bad grounds such as the sand bed of hard lithosphere, frozen soil layer, rich groundwater, macadam, boulders; High efficiency.
Claims (4)
1. two convolution down-the-hole drills of walking, comprise pile frame main body and boring main body, the pile frame main body comprises the walking chassis, column, diagonal brace mechanism, hoist engine and assembly pulley, it is characterized in that: the boring main body comprises unit head, lower unit head, outer tube, auger stem and down-hole hammer, upper unit head is connected with the top of auger stem by snubber, the endoporus that lower unit head and outer tube are provided with is passed in the auger stem activity, the bottom of auger stem is connected with down-hole hammer, drive auger stem during upper unit head work, down-hole hammer clockwise rotates, lower unit head is connected with outer tube, driving outer tube during lower unit head work rotates counterclockwise, down-hole hammer comprises impactor and jump bit, and the tup of jump bit exposes to the outer tube under shed; Establish the gases at high pressure passage of mutual perforation in snubber, auger stem, impactor and the jump bit, the gases at high pressure that air compressor machine is produced are connected the import of gases at high pressure passage by high-pressure air pipe behind oil fog generator, gases at high pressure outwards blow out from the jump bit bottom at last through upper unit head, snubber, auger stem, impactor.
2. two convolution down-the-hole drills of walking as claimed in claim 1, it is characterized in that: described impactor comprises steel pipe, tool joint, one way valve, cylinder sleeve and impact head, it is suitable for reading that tool joint is connected in steel pipe, tool joint is connected with the bottom of described auger stem, one way valve is located at steel tube inner hole, one way valve comprises valve head, spring and valve seat, leave inlet chamber between valve seat upper surface and the tool joint, inlet chamber communicates with the air inlet that tool joint is provided with, valve head is located at the valve seat top, spring is located at the valve head bottom, valve head is blocked air inlet under spring action, part is sheathed at cylinder sleeve bore under the valve seat, the cylindrical of part is provided with cannelure under the valve seat, cannelure communicates with the vertical hole of inlet chamber by valve seat, cylinder sleeve is sheathed at steel tube inner hole, leave the air-flow passageway between cylinder sleeve cylindrical and the steel tube inner hole, the air-flow passageway communicates by the upper transverse holes that cylinder sleeve is provided with cannelure, cylinder sleeve also is provided with lower transverse holes, cylinder sleeve bore between the transverse holes is provided with vertical slot up and down, described impact head arranges in the cylinder sleeve underside, impact head is the large cylinder in middle little two, upper cylinder and cylinder sleeve bore are slidingly matched, lower prop and steel tube inner hole are slidingly matched, the cylinder epimere of lower prop is provided with bar-shaped trough, the steel tube inner hole corresponding with the cylinder hypomere is provided with annular groove, impact head is provided with and runs through axially extending bore up and down, and the bottom surface of described valve seat is provided with the plunger corresponding with axially extending bore, the plunger cylindrical, surround air chamber between cylinder sleeve bore and the impact head upper surface; Lower position at impact head, bar-shaped trough and annular groove partly intersect, gases at high pressure arrive the impact head bottom through inlet chamber, vertical hole, cannelure, upper transverse holes, air-flow passageway, bar-shaped trough, annular groove, upper limit position at impact head, bar-shaped trough and annular groove stagger fully, gases at high pressure enter air chamber through inlet chamber, vertical hole, cannelure, upper transverse holes, air-flow passageway, lower transverse holes, vertical slot, and the while plunger enters axially extending bore axially extending bore is blocked.
3. two convolution down-the-hole drills of walking as claimed in claim 1, it is characterized in that: described snubber comprises sleeve pipe, piston rod and piston, the upper end of sleeve pipe is connected with end cap, the lower end of sleeve pipe is connected with the drilling rod lower contact, the drilling rod lower contact is connected with the top of described auger stem, the endoporus of sleeve pipe is comprised of top and the bottom, top is divided into plunger shaft, the bottom is divided into interior hexagonal square hole, described piston slides to arrange in plunger shaft and is connected with piston rod, the top of piston rod is stretched out outside the end cap and is connected with the drilling rod top connection, the drilling rod top connection is connected with described upper unit head, the bottom of piston rod is connected with the outer-hexagonal body of rod, the setting of in interior hexagonal square hole, sliding of the outer-hexagonal body of rod, and described snubber is provided with the gas channel that axially connects from top to bottom whole snubber.
4. two convolution down-the-hole drills of walking as claimed in claim 1, it is characterized in that: described oil fog generator comprises gas tank and oil tank, gas tank is provided with air inlet port and gas outlet, oil tank is provided with oil filler, oil tank is located at the gas tank top, tank bottom is provided with flowline and gas tank is connected, and also is provided with the gas balance pipe between oil tank and the gas tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220481742 CN202755890U (en) | 2012-09-20 | 2012-09-20 | Walking type double circling downhole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220481742 CN202755890U (en) | 2012-09-20 | 2012-09-20 | Walking type double circling downhole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755890U true CN202755890U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220481742 Expired - Fee Related CN202755890U (en) | 2012-09-20 | 2012-09-20 | Walking type double circling downhole drill |
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| Country | Link |
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| CN (1) | CN202755890U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828690A (en) * | 2012-09-20 | 2012-12-19 | 瑞安市八达工程机械有限公司 | Walking dual-swing downhole drill |
| CN103822073A (en) * | 2014-02-24 | 2014-05-28 | 湖南有色重机工程机械有限公司 | Lubricating dust removing device used for drilling machine |
| CN106677713A (en) * | 2017-03-20 | 2017-05-17 | 桐乡市天顺模具有限公司 | Stress drilling machine |
-
2012
- 2012-09-20 CN CN 201220481742 patent/CN202755890U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828690A (en) * | 2012-09-20 | 2012-12-19 | 瑞安市八达工程机械有限公司 | Walking dual-swing downhole drill |
| CN102828690B (en) * | 2012-09-20 | 2014-07-09 | 瑞安市八达工程机械有限公司 | Walking dual-swing downhole drill |
| CN103822073A (en) * | 2014-02-24 | 2014-05-28 | 湖南有色重机工程机械有限公司 | Lubricating dust removing device used for drilling machine |
| CN106677713A (en) * | 2017-03-20 | 2017-05-17 | 桐乡市天顺模具有限公司 | Stress drilling machine |
| CN106677713B (en) * | 2017-03-20 | 2018-08-21 | 桐乡市天顺模具有限公司 | Reinforce drilling machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20140920 |
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| EXPY | Termination of patent right or utility model |