CN106368702A - Mining handheld all-hydraulic drill based on internal curve motor - Google Patents
Mining handheld all-hydraulic drill based on internal curve motor Download PDFInfo
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- CN106368702A CN106368702A CN201610842474.XA CN201610842474A CN106368702A CN 106368702 A CN106368702 A CN 106368702A CN 201610842474 A CN201610842474 A CN 201610842474A CN 106368702 A CN106368702 A CN 106368702A
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- drill
- body upper
- end cap
- stator
- upper shell
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- 238000005065 mining Methods 0.000 title claims abstract description 25
- 238000005553 drilling Methods 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 13
- 238000010168 coupling process Methods 0.000 claims description 13
- 238000005859 coupling reaction Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 7
- 239000000839 emulsion Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 241000219098 Parthenocissus Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/22—Hand tools or hand-held power-operated tools specially adapted for dislodging minerals
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a mining handheld all-hydraulic drill based on an internal curve motor. The mining handheld all-hydraulic drill comprises a drill body upper shell, a drill body lower shell, an overflow-throttle valve, a holding rod, an adjustment arm, an oil distribution disc, the multi-action internal curve radial hydraulic motor, a speed increaser, a drill rod and a drill bit. High pressure oil enters the multi-action internal curve radial hydraulic motor from an oil inlet of the drill body upper shell through the overflow-throttle valve and the oil distribution disc and pushes a piston in the multi-action internal curve radial hydraulic motor and beams to press to the internal curve surface of a stator, rollers are located on the beams, make direct contact with the internal curve surface of the stator, and interact with the stator to generate axial force so as to push a rotor to rotate, and therefore the drill rod connected with the speed increaser is driven to rotate so as to drive the drill bit to achieve the purpose of drilling. The mining handheld hydraulic drill has the advantages that stress is balanced, the drill holding rod is easy to hold, torque is large, all-hydraulic operation is achieved, speed adjustment and reversing are achieved, and overload protection is achieved.
Description
Technical field
The present invention relates to mining equipment technical field is and in particular to a kind of mining hand-held all-hydraulic based on inner curve motor
Rig.
Background technology
Mining hand-held drill is mainly used in colliery excavation, caving blast hole, bolthole, gas drainage under suction and detection
The minor diameter engineerings such as hole, spy water hole, water injection hole, coal rock layer reinforcing or fire extinguishing injected hole.For adapting to national safety of coal mines life
The needs producing, coal mine down-hole drilling machinery is put into the management of mining product safety sign, is hurted sb.'s feelings with the machinery reducing bore operation
Security incident is it is ensured that coal mine down-hole drilling engineering safety.
The mining hand-held small-sized drill of original China has electric coal drill and wind coal borer, because mining hand-held drill is used for underground coal mine
And have in surrounding medium in the environment of the explosivity mixed gas such as methane, coal dust, from safety considerations, there is safety in electric coal drill
Hidden danger;Wind coal borer boring capacity is little, and volume is big, and noise is big, and work produces dust greatly, work under bad environment, manually operates wind
Coal borer is more difficult.
Consider above-mentioned reason, in the last few years, occur in that the hand-held small mining rig for power source using hydraulic pressure, this type bores
Owner will be using the driving structure of gear type motor and cycloid hydraulic motor, motor force unbalance, rig when hand-manipulated
Holding rod is not easy to hold, and brings great difficulty to on-site manual operation.
By patent retrieval, there is following known technical scheme:
Patent 1:
Application number: cn201510127210.1, the applying date: 2015.03.20, authorized announcement date: 2015.06.24, this
Bright disclose a kind of comprehensive crawler type hydraulic drilling rig in colliery, including creeper undercarriage and drilling main frame, described drilling master
Machine includes unit head and unit head frame, and the front end of described creeper undercarriage is provided with support post, on described support post
It is provided with the hydraulic swivel head mechanism driving unit head gantry rotation, described unit head frame is additionally provided with driving frame and moves up and down
Dynamic lift cylinder and the propelling cylinder driving unit head forward-reverse.Instant invention overcomes the deficiencies in the prior art, can
Make that unit head frame is arbitrarily angled to be rotated it is achieved that the comprehensive arbitrarily angled adjustment of drill hole of drilling machine in horizontal plane and vertical plane,
Show outstanding advantage when construction raises up hole and lower inclined hole, upright opening.
Patent 2:
Application number: cn200420059779.6, the applying date: 2004.05.21, authorized announcement date: 2005.05.18, this reality
Disclose a kind of hand-held hydraulic drilling rig for mining with new, including hydraulic motor, drilling rod, drill rod sleeve, control crank, switching on and shutting down
Structure, described hydraulic motor is cam planet gear motor, and this motor output shaft is connected with described drill rod sleeve, in motor front and rear cover
On be provided with fuel inlet fitting block and back leakage connection block, described fuel inlet fitting block is connected with the in-line of motor, and described oil return connects
Head block is connected with the return line of motor, is also equipped with drill control valve in fuel inlet fitting block, and described switching mechanism controls should
The opening and closing of drill control valve.This rig, without reducing gear, greatly reduces physical dimension and the weight of rig;Adopt
With quill shaft design, greatly reduce rig axial dimension;It is mounted on drill rod sleeve in front and back, can realize positive and negative with double-side operation
Turn and distinct interface connects, more convenient to use, this rig can be using colliery high-water-based emulsion as work simultaneously
Medium, it would however also be possible to employ mineral oil is as working media.
Patent 3:
Application number: cn201210230151.7, the applying date: 2012.07.05, authorized announcement date: 2014.01.22, this
Bright a kind of mining guide rail type emulsified liquid hydraulic drilling rig is disclosed.This emulsion hydraulic rig include guide rail open frame, propulsion plant,
Power set, drilling equipment, maneuver control device, are working media using high-water-based emulsion, with non-circular planetary gear tying
Configuration formula emulsion motor does power source;Take the gear being provided with fast, slow two-stage speed change to increase speed adjustable range simultaneously, join
There is simple and effective wet type drilling operation way of supplying water, select spline connection, jackshaft transmission, efficient vibration-damping pad circle measure abatement to inhale
Receive drilling axial vibration power to multinomial innovative technology structural measures such as emulsion motor transmission, in coal road, coal rock tunnel, coal mining
Carry out various drilling operations in the scope of operation, have that output torque is big, low-speed performance is good, bearing capacity is strong, operation quality is high, applicable
The prominent technical characteristic such as scope is wide, can obtain improve production efficiency, reduce labor intensity, and the multiple economy such as eliminate safe hidden trouble
Benefit and social benefit.
Found by above retrieval, above technical scheme does not affect the novelty of the present invention;And above patent literary composition
Part be mutually combined the creativeness not destroying the present invention.
Content of the invention
(1) technical problem solving
The technical problem to be solved there is provided a kind of mining hand-held seven-star wheel hydraulic drill rig, mining to overcome
In electric drill there is potential safety hazard in electric coal drill, and wind coal borer boring capacity is little, and volume is big, and noise is big, and work produces dust greatly, work
Bad environments, artificial operation wind coal borer is more difficult;Using gear type motor and cycloid hydraulic motor as driving structure
Hand drill, motor force unbalance, when hand-manipulated, rig holding rod is not easy to hold, and brings great difficulty to on-site manual operation
Problem.
(2) technical scheme
For realizing object above, the present invention is achieved by the following technical programs: a kind of ore deposit based on inner curve motor
Use hand-held all-hydraulic drill, including body upper shell, underpart shell, holding rod, left end cap, right end cap, shaft coupling, drilling rod
And drill bit, also include multiple-action inner curved radial motor;
Described body upper shell has upper lid no bottom structure for hollow, and described underpart shell has the supreme lid in bottom for hollow
Structure, described body upper shell is fixedly connected with bolt by packing ring with underpart shell, and both inner space are one
Overall;
Cover in described body upper cover top portion and be provided with oil-in and oil-out, under described body upper shell and body
Portion's inside the shell is connected with multiple-action inner curved radial motor;
Described multiple-action inner curved radial motor includes housing, pintle, flow ring, deep groove ball bearing, rotor, horizontal stroke
Beam, roller, taper roll bearing, stator and piston;Described underpart shell inner bottom part has been bolted to connection left end
Lid, described left end cap has been bolted to connection housing, and described housing is connected with stator, and described stator is in disc
Cavity body structure, is connected with pintle by deep groove ball bearing at axial location in the middle part of it, and inner chamber is connected with rotor;
Described pintle is connected with flow ring, and described rotor is connected with left end cap by taper roll bearing;Described rotor
It is provided with piston cylinder holes, described piston cylinder in the hole is connected with piston, and described piston is connected with crossbeam, and described crossbeam symmetrically connects
It is connected to two rollers, described roller is contacted compression and connects with bore of stator;
Described left end cap has been bolted to connection right end cap, and it is fixing even that described right end cap passes through shaft coupling clamping screw
It is connected to shaft coupling, the output shaft of described rotor is connected with drilling rod by shaft coupling, and described drilling rod is fixedly connected with drill bit.
Further, described body upper outer casing upper cover is provided with screwed hole, and described screwed hole is matched with pintle.
Further, described crossbeam and piston contact connect, and its two ends is connected with roller by needle bearing, described rolling
Wheel is contacted compression and connects with the inner curve surface of stator.
Further, the cavity shape of described body upper shell and underpart shell and size with multiple-action inner curved
The external shape of radial motor and size are adapted.
Further, described body upper shell medial side face is arranged with two holding rods.
(3) beneficial effect
The invention provides a kind of mining hand-held all-hydraulic drill based on inner curve motor, using multiple-action inner curved footpath
To hydraulic motor as the drive mechanism of hand held hydraulic drill, there is stress balance, rig holding rod easily holds, moment of torsion big, peace
The advantages of property is high entirely.
Brief description
Fig. 1 is the mining hand held hydraulic drill schematic diagram based on multiple-action inner curved radial motor;
Fig. 2 is the mining hand held hydraulic drill three-dimensional detonation configuration figure based on multiple-action inner curved radial motor;
Fig. 3 is multiple-action inner curved radial motor mounted inside figure;
Fig. 4 is multiple-action inner curved radial motor structural representation.
In figure:
1st, oil-in;2nd, body upper shell;3rd, holding rod;4th, multiple-action inner curved radial motor, 401, housing,
402nd, pintle, 403, flow ring, 404, deep groove ball bearing, 405, rotor, 406, crossbeam, 407, roller, 408, taper roller
Bearing, 409, stator, 410, piston;5th, left end cap;6th, right end cap;7th, shaft coupling;8th, underpart shell;9th, drilling rod;10th, bore
Head;11st, oil-out.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment being obtained under the premise of creative work, broadly falls into the scope of protection of the invention.
In conjunction with shown in Fig. 1~Fig. 4, its structural relation is: include body upper shell 2, underpart shell 8, holding rod 3,
Left end cap 5, right end cap 6, shaft coupling 7, drilling rod 9 and drill bit 10, also include multiple-action inner curved radial motor 4;
Body upper shell 2 has upper lid no bottom structure for hollow, and underpart shell 8 has bottom no superstructure for hollow,
Body upper shell 2 is fixedly connected with bolt by packing ring with underpart shell 8, and both inner space are an entirety;
Body upper shell 2 top cover is provided with oil-in 1 and oil-out 11, body upper shell 2 and underpart
It is connected with multiple-action inner curved radial motor 7 in shell 8;
Described multiple-action inner curved radial motor 4 includes housing 401, pintle 402, flow ring 403, deep-groove ball axle
Hold 404, rotor 405, crossbeam 406, roller 407, taper roll bearing 408, stator 409 and piston 410;Outside described underpart
Shell 8 inner bottom part has been bolted to connection left end cap 5, and described left end cap 5 has been bolted to connection housing 401, described
Housing 401 is connected with stator 409, and described stator 409 is disc hollow cavity structure, passes through at axial location in the middle part of it
Deep groove ball bearing 403 is connected with pintle 402, and inner chamber is connected with rotor 405;Described pintle 402 is connected
There is flow ring 403, described rotor 405 is connected with left end cap 5 by taper roll bearing 408;Described rotor 405 is provided with
Piston cylinder holes, described piston cylinder in the hole is connected with piston 410, and described piston 410 is connected with crossbeam 406, described crossbeam 406
It is symmetrically connected with two rollers 407, described roller 407 is connected with stator 409 lumen contact compression;Multiple-action inner curved radial direction liquid
Deep groove ball bearing 404 in pressure motor 4 is matched with one end of rotor 405, and is axially fastened by housing 401;Taper roller
Bearing 408 is matched with the other end of rotor 405, and is axially fastened by left end cap 5;Deep groove ball bearing 404 and taper roller
Bearing 408 supports the rotary motion of rotor 405 jointly.
Described left end cap 5 has been bolted to connection right end cap 6, and it is solid that described right end cap 6 passes through shaft coupling clamping screw
Surely it is connected with shaft coupling 7, the output shaft of described rotor 405 is connected with drilling rod 9 by shaft coupling 7, and described drilling rod 9 is fixedly connected with
Drill bit 10.
Preferably, body upper shell 2 is covered with screwed hole, screwed hole is matched with pintle 402, plays miniflow and adjust
Speed effect, fix pintle 402 makes it that axial runout not occur simultaneously;Flow ring 403 is matched with pintle 402, flow ring
403 can be enlarged to flow stroke, and the oil inlet and oil return simultaneously meeting piston 410 is coordinated.
Preferably, crossbeam 406 contacts connection with piston 410, and its two ends is connected with roller 407 by needle bearing, rolling
Wheel 407 is contacted compression and connects with the inner curve surface of stator 409;Roller forms rolling friction with the inner curve surface of stator.
Preferably, the cavity shape of body upper shell 2 and underpart shell 8 and size and multiple-action inner curved radial direction
The external shape of hydraulic motor 4 and size are adapted.
Preferably, body upper shell 2 medial side face is arranged with two holding rods 3.
When specifically used, provide height through pintle 402 to multiple-action inner curved radial motor 4 by oil-in 1
Force feed, when oil-distribution port oil-feed duct, oil return with flow ring 403 respectively in rotor 405 rotation process of piston 410 bottom
When duct communicates, hydraulic oil promotes crossbeam 406 and piston 410 to press to the inner curve surface of stator 409, and roller 407 is located at crossbeam
On 406, directly contact with the inner curve surface of stator 409, by mutual between the inner curve surface of roller 407 and stator 409
Effect produces axial force, thus drive rotor 405 rotates;The drilling rod 10 that rotarily drives of rotor 405 rotates, and then so that drill bit 11 is revolved
It is conveyed to the purpose holed.
To sum up, the embodiment of the present invention has the advantages that using multiple-action inner curved radial motor as handss
Hold the drive mechanism of hydraulic drill rig, have the advantages that stress balance, rig holding rod easily hold, moment of torsion is big, safe.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or deposit between operating
In any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to
Comprising of nonexcludability, wants so that including a series of process of key elements, method, article or equipment and not only including those
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element that limited by sentence "including a ..." it is not excluded that
Also there is other identical element including in the process of described key element, method, article or equipment.
Above example only in order to technical scheme to be described, is not intended to limit;Although with reference to the foregoing embodiments
The present invention has been described in detail, it will be understood by those within the art that: it still can be to aforementioned each enforcement
Technical scheme described in example is modified, or carries out equivalent to wherein some technical characteristics;And these modification or
Replace, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a kind of mining hand-held all-hydraulic drill based on inner curve motor, including body upper shell (2), underpart shell
(8), holding rod (3), left end cap (5), right end cap (6), shaft coupling (7), drilling rod (9) and drill bit (10) it is characterised in that: also include
Multiple-action inner curved radial motor (4);
Described body upper shell (2) has upper lid no bottom structure for hollow, and described underpart shell (8) has bottom supreme for hollow
Lid structure, described body upper shell (2) is fixedly connected with bolt by packing ring with underpart shell (8), and both inner chambers are even
Lead to for an entirety;
Described body upper shell (2) top cover is provided with oil-in (1) and oil-out (11), described body upper shell
And in underpart shell (8), be connected with multiple-action inner curved radial motor (7) (2);
Described multiple-action inner curved radial motor (4) includes housing (401), pintle (402), flow ring (403), zanjon
Ball bearing (404), rotor (405), crossbeam (406), roller (407), taper roll bearing (408), stator (409) and piston
(410);Described underpart shell (8) inner bottom part has been bolted to connection left end cap (5), and described left end cap (5) is passed through
Bolt is fixedly connected with housing (401), and described housing (401) is connected with stator (409), and described stator (409) is disk
Shape hollow cavity structure, is connected with pintle (402), inner chamber by deep groove ball bearing (403) at axial location in the middle part of it
It is connected with rotor (405);Described pintle (402) is connected with flow ring (403), and described rotor (405) passes through circle
Taper roller bearing (408) is connected with left end cap (5);Described rotor (405) is provided with piston cylinder holes, described piston cylinder in the hole
It is connected with piston (410), described piston (410) is connected with crossbeam (406), described crossbeam (406) is symmetrically connected with two
Roller (407), described roller (407) is connected with stator (409) lumen contact compression;
Described left end cap (5) has been bolted to connection right end cap (6), and described right end cap (6) passes through shaft coupling clamping screw
It is fixedly connected with shaft coupling (7), the output shaft of described rotor (405) is connected with drilling rod (9), described drilling rod by shaft coupling (7)
(9) it is fixedly connected with drill bit (10).
2. a kind of mining hand-held all-hydraulic drill based on inner curve motor according to claim 1 it is characterised in that: institute
State and be covered with screwed hole on body upper shell (2), described screwed hole is matched with pintle (402).
3. a kind of mining hand-held all-hydraulic drill based on inner curve motor according to claim 1 it is characterised in that: institute
State crossbeam (406) and contact connection with piston (410), its two ends is connected with roller (407), described roller by needle bearing
(407) contact compression with the inner curve surface of stator (409) to connect.
4. a kind of mining hand-held all-hydraulic drill based on inner curve motor according to claim 1 it is characterised in that: institute
State cavity shape and size and the multiple-action inner curved radial motor of body upper shell (2) and underpart shell (8)
(4) external shape and size are adapted.
5. a kind of mining hand-held all-hydraulic drill based on inner curve motor according to claim 1 it is characterised in that: institute
State body upper shell (2) medial side face and be arranged with two holding rods (3).
Priority Applications (1)
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CN201610842474.XA CN106368702B (en) | 2016-09-22 | 2016-09-22 | A kind of mining hand-held all-hydraulic drill based on inner curve motor |
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CN201610842474.XA CN106368702B (en) | 2016-09-22 | 2016-09-22 | A kind of mining hand-held all-hydraulic drill based on inner curve motor |
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CN106368702A true CN106368702A (en) | 2017-02-01 |
CN106368702B CN106368702B (en) | 2018-06-08 |
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CN201610842474.XA Active CN106368702B (en) | 2016-09-22 | 2016-09-22 | A kind of mining hand-held all-hydraulic drill based on inner curve motor |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107824838A (en) * | 2017-11-17 | 2018-03-23 | 安徽理工大学 | A kind of handheld portable hydraulic boring unit based on double rocker mechanism |
CN109630111A (en) * | 2019-01-24 | 2019-04-16 | 滕州市金达煤炭有限责任公司 | A kind of coal mining hand-held electric coal drill |
Citations (5)
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---|---|---|---|---|
US3901330A (en) * | 1973-11-21 | 1975-08-26 | Brown Oil Tools | Electric power drive assembly |
CN2700560Y (en) * | 2004-05-21 | 2005-05-18 | 张立刚 | Hand-held hydraulic drilling rig for mining |
CN2931752Y (en) * | 2006-06-07 | 2007-08-08 | 苏心照 | Hand-held water injection type coal seam drill for exploring water |
CN202326003U (en) * | 2011-11-21 | 2012-07-11 | 宁波德辰液压科技有限公司 | Multiple-function inner curve type radial plunger hydraulic motor |
CN103711433A (en) * | 2013-12-24 | 2014-04-09 | 贵州永润煤业有限公司 | Roadheader-mounted hydraulic drilling rig |
-
2016
- 2016-09-22 CN CN201610842474.XA patent/CN106368702B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3901330A (en) * | 1973-11-21 | 1975-08-26 | Brown Oil Tools | Electric power drive assembly |
CN2700560Y (en) * | 2004-05-21 | 2005-05-18 | 张立刚 | Hand-held hydraulic drilling rig for mining |
CN2931752Y (en) * | 2006-06-07 | 2007-08-08 | 苏心照 | Hand-held water injection type coal seam drill for exploring water |
CN202326003U (en) * | 2011-11-21 | 2012-07-11 | 宁波德辰液压科技有限公司 | Multiple-function inner curve type radial plunger hydraulic motor |
CN103711433A (en) * | 2013-12-24 | 2014-04-09 | 贵州永润煤业有限公司 | Roadheader-mounted hydraulic drilling rig |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107824838A (en) * | 2017-11-17 | 2018-03-23 | 安徽理工大学 | A kind of handheld portable hydraulic boring unit based on double rocker mechanism |
CN109630111A (en) * | 2019-01-24 | 2019-04-16 | 滕州市金达煤炭有限责任公司 | A kind of coal mining hand-held electric coal drill |
Also Published As
Publication number | Publication date |
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CN106368702B (en) | 2018-06-08 |
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