CN105971493A - Power head applied to adjustable large-torque rotation multi-functional anchor drilling machine - Google Patents
Power head applied to adjustable large-torque rotation multi-functional anchor drilling machine Download PDFInfo
- Publication number
- CN105971493A CN105971493A CN201610223123.0A CN201610223123A CN105971493A CN 105971493 A CN105971493 A CN 105971493A CN 201610223123 A CN201610223123 A CN 201610223123A CN 105971493 A CN105971493 A CN 105971493A
- Authority
- CN
- China
- Prior art keywords
- unit head
- head housing
- main shaft
- power head
- cover plate
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 32
- 238000012856 packing Methods 0.000 claims description 22
- 238000004873 anchoring Methods 0.000 claims description 20
- 230000035939 shock Effects 0.000 claims description 15
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000020347 spindle assembly Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a power head applied to an adjustable large-torque rotation multi-functional anchor drilling machine. A shell body of the power head is provided with a spindle assembly and 400 cycloidal hydraulic motors, a cover plate covers the shell body of the power head, and a rotary valve is arranged on the cover plate; the four corners of the rotary valve are fixed through fixing plates; one end of the cover plate extends out of the shell body of the power head, and a drag chain bracket is fixed to the position, extending out of the shell body of the power head, of the cover plate; and a 80 L oil meter is arranged on one side of the shell body of the power head. According to the power head applied to the adjustable large-torque rotation multi-functional anchor drilling machine, driving is conducted through the four hydraulic motors, so that the working efficiency is improved, and wastage of the parts of the power head is reduced; a box body is internally provided with a single-direction thrust ball bearing, a certain amount of lubrication oil stored in the box body of the power head is used, and the bearing is lubricated by splashed oil liquid through rotating of a transmission part immersed in the oil liquid, so that the situation that the bearing is damaged due to lack of the lubrication oil is avoided; a back cover of the box body is provided with an NA4824 needle bearing which plays a radial force function, and 51224 single-direction thrust bearings are arranged in the box body and play an axial force function; and a spindle is supported in the mode that the radial force and the axial force act independently and do not interfere with each other.
Description
Technical field
The present invention relates to a kind of anchoring drilling machine, specially one apply in the multi-functional anchoring of revolution of adjustable high pulling torque
The unit head of rig.
Background technology
Anchoring drilling machine be mainly used in the landslide in power station, railway, all kinds of hazards control of slope of highway and
Dangerous Rock Body anchoring engineering, is particularly suitable for High Slope Rock anchoring engineering, apply also for construct deep basic pit project in city supporting,
Anti-float anchor rod and foundation grouting reinforcing engineering hole, the blast hole of blasting engineering, high-pressure rotary jet grouting pile, tunneltron canopy prop up
Guard apertures etc., slightly change its unit head, can the most comprehensive construction.Main drilling method: down-hole hammer
Routine is crept into, pipe-following drilling, Auger drilling.Having good performance, compact conformation, volume is little, lightweight,
Maneuverability, the output moment of torsion of hydraulic power head is relatively big, and drilling ability is strong, and the range of rig is wide.Respectively
In the making hole construction practice of class bad ground and different drilling method, obtain vast unit in charge of construction and recognizing of going together
Can.
The most domestic high pulling torque turns round multi-functional anchoring drilling machine and there is a lot of deficiencies, is mainly reflected in moment of torsion
Little, bulky, heavy, structure is complicated, so causing wasting material, cost is high, ability, is processing
During bad ground, efficiency is low, cannot meet the demand of construction development in terms of drilling depth, so to working out
A simple in construction.Moment of torsion is big, and it is extremely urgent that the fast and adjustable high pulling torque of rotating speed turns round multi-functional anchoring drilling machine.
1, the existing multi-functional anchoring drilling machine unit head in market is driven by two hydraulic motors, through gear-driving speed-variable,
Drive main shaft and front end tool joint rotating, drive following drilling tool to rotate with this.In actual motion is constructed,
Gyroscope output moment of torsion is 6500-7500N*M, runs power relatively small, and efficiency of construction is the highest.
2, when casing is installed, internal former Selection of Bearings bearing NU1028 cylinder roller bearing two, transports at unit head
Row process, occurs that bearing lacks oil lubrication and causes bearing rapid wear.
3, select bearing 32024 taper roll bearing at existing unit head bonnet, unit head in real work,
Main shaft is except by axial force, also suffering from radial force, and radial force can cause main shaft to rock, and affects the normal work of main shaft
Make, reduce work efficiency and main shaft damages.
4, only simply employing cushion at existing multi-functional anchoring drilling machine out splice going splice on market, damping is imitated
The most inconspicuous, unit head self is damaged substantially.
Summary of the invention
It is an object of the invention to provide a kind of application and turn round the dynamic of multi-functional anchoring drilling machine at adjustable high pulling torque
Power head, this unit head has good performance, compact conformation, and volume is little, lightweight, maneuverability, output
Moment of torsion is relatively big, and drilling ability is strong, and the range of rig is wide.
The technical solution used in the present invention is as follows: one is applied and bored in the multi-functional anchoring of adjustable high pulling torque revolution
The unit head of machine, mainly by unit head housing, 400 cycloid hydraulic motors, main shaft assembly, 80L oil meter, soft
Vulcan fibre pad, rotary valve, fixed plate, cover plate, drag chain support, packing ring, screw bolt and nut form；It is characterized in that:
Main shaft assembly, 400 cycloid hydraulic motors it are provided with on unit head housing shell；Main shaft assembly, 400 cycloid liquid
Pressure motor is supporting fixing by bolt, packing ring and nut respectively；Described main shaft assembly is arranged under unit head housing
End, 400 cycloid hydraulic motors are arranged on the unit head housing position near cover plate, and cover plate covers unit head housing,
It is supporting fixing by bolt, packing ring and nut that junction both it arranges mild steel paper washer, cover plate and unit head housing；
Rotary valve is arranged on the cover board, and four corner location of rotary valve are fixed by fixed plate, and its fixed plate is provided with spiral shell
Bolt and packing ring；Described cover plate one end is stretched out outside unit head housing, and drag chain support is joined by bolt, packing ring and nut
Set is fixed on the cover plate stretched out outside unit head housing, and described unit head housing side is provided with 80L oil meter.
400 cycloid hydraulic motors of the present invention have four, and two 400 cycloid hydraulic motors are respectively provided with
At unit head housing on positive and negative two of the position of cover plate, 400 cycloid hydraulic motors and unit head housing are even
Connect position and be provided with mild steel paper washer, built-in be provided with shaft gear.
Main shaft assembly on unit head housing of the present invention is by joint, back-up ring, U-shaped circle, adapter sleeve, card
Key, screw, mandrel, shock ring, main shaft form；Described joint stretches out at unit head housing, joint internal and
Mandrel connects, and junction is provided with back-up ring, back-up ring and joint link position and arranges U-shaped circle, on the right side of joint and core
The outside front ends of axle is provided with shock ring, joint and shock ring link position and is fixed by Harvard structure, and Harvard is tied
Structure is made up of adapter sleeve, card key, screw；Adapter sleeve jointing and shock ring, joint and shock ring junction
Arranging card key, adapter sleeve is fixed by screw；It is provided with main shaft, mandrel and main shaft outside described core back-end to arrange
In unit head enclosure interior.
Unit head housing of the present invention is fixed by front capping, protecgulum, bonnet and rear seal-cover, and front capping sets
Putting at unit head housing forward end, protecgulum is arranged on unit head housing side front end, and both of which passes through screw and packing ring
Being fixed on unit head housing, two bearings are installed in the other centre position of the main shaft that unit head enclosure interior is provided with
51224, it is provided with a gear wheel between two bearings 51224, in the middle of gear wheel and main shaft, sets general flat key,
Arranging spacer ring between general flat key and bearing 51224, the gear wheel other end connects 400 cycloid hydraulic motors
Shaft gear, the other back-end location of main shaft is provided with bearing NA4824 and oil-sealing arrangement, is provided with bonnet by bearing NA4824,
Bonnet is arranged on rear end, unit head housing side, and it is the most logical that oil-sealing arrangement arranges rear seal-cover, bonnet and rear seal-cover on one side
Cross screw and packing ring is fixed on unit head housing.
Mandrel of the present invention and junction, rear-end of spindle position are provided with copper sheathing, arrange former nut by copper sheathing, logical
Crossing screw to fix, core back-end and unit head housing junction arrange card key, and card key is fixing by set.
The Curve guide impeller of the present invention and advantages of the present invention: (1) the present invention is directed to multi-functional anchoring drilling machine
Four fluid motor-driven used instead by MGL-180 unit head.In running, gyroscope output moment of torsion is promoted to
12000N*M, improves work efficiency, reduces the loss to unit head self parts；(2) box house axle
Holding selection bearing 51224 single direction thrust ball bearing, bearing lengthens, and during unit head runs up, utilizes
A certain amount of lubricating oil in being stored in power head box, by being immersed in the rotation of driving parts in fluid, swashs spilled oil
Liquid lubrication bearing, causes bearing not damage because lacking lubricating oil, thus extends bearing service life；(3)
Selection of Bearings bearing NA4824 needle bearing at rear cover of box, the supporting way of main shaft use radially with axially
Each self-applying, the most not conflicting mode, though in operation main shaft rock unit head work the most unaffected, work
Middle main shaft is not easy to damage, and does not affect work efficiency；(4) damping after main shaft uses the transformation of the way is bad can make work
The merit that middle drilling rod produces returns drilling rod, increases drilling rod work work, improves work efficiency and reduces unit head
The damage of self；(5) use shock ring instead at multi-functional anchoring drilling machine MGL-180 unit head out splice going splice, subtract
Shake ring uses Harvard structure, and early stage is installed and later period maintenance maintenance aspect is succinct and in unit head work process,
The merit that main shaft can be made to produce returns drilling rod, drilling rod be continuing with, and reduces the damage to unit head self, improves
Work efficiency.
Accompanying drawing explanation
Fig. 1 is the shape assumption diagram of the present invention.
Fig. 2 is the A-A profile of the present invention.
In the drawings, unit head housing 1,400 cycloid hydraulic motor 2, main shaft assembly 3,80L oil meter 4, soft
Vulcan fibre pad 5, rotary valve 6, fixed plate 7, cover plate 8, drag chain support 9, bolt 10, packing ring 11, nut 12,
Mild steel paper washer 13, shaft gear 14, joint 15, back-up ring 16, U-shaped circle 17, adapter sleeve 18, card key 19,
Screw 20, mandrel 21, shock ring 22, main shaft 23, front capping 24, protecgulum 25, bonnet 26 and rear seal-cover
27,28, bearing 51224,29, gear wheel, 30, general flat key, 31, spacer ring, 32, bearing NA4824,
33, oil-sealing arrangement, copper sheathing 34, former nut 35, overlaps 36.
Detailed description of the invention
As shown in Figure 1 and Figure 2, the present invention is such to work and enforcement, and one is applied in adjustable big torsion
Square turn round multi-functional anchoring drilling machine unit head, mainly by unit head housing 1,400 cycloid hydraulic motor 2,
Main shaft assembly 3,80L oil meter 4, mild steel paper washer 5, rotary valve 6, fixed plate 7, cover plate 8, drag chain support 9,
Bolt 10, packing ring 11, nut 12 form；It is characterized in that: on unit head housing 1 shell, be provided with main shaft
Assembly 3,400 cycloid hydraulic motor 2；Main shaft assembly 3,400 cycloid hydraulic motor 2 respectively by bolt 10,
Packing ring 11, nut 12 are supporting fixing；Described main shaft assembly 3 is arranged on unit head housing 1 lower end, 400 pendulum
Line hydraulic motor 2 is arranged on the unit head housing 1 position near cover plate 8, and cover plate 8 covers unit head housing 1,
Junction both it arranges mild steel paper washer 5, cover plate 8 and unit head housing 1 by bolt 10, packing ring 11,
Nut 12 is supporting fixing；Rotary valve 6 is arranged on cover plate 8, and four corner location of rotary valve 6 pass through fixed plate
7 fix, and its fixed plate 7 is provided with bolt 10 and packing ring 11；Power head capsule is stretched out in described cover plate 8 one end
Outside body 1, drag chain support 9 stretches out unit head housing by bolt 10, packing ring 11, supporting being fixed on of nut 12
On cover plate 8 outside 1, described unit head housing 1 side is provided with 80L oil meter 4.
400 cycloid hydraulic motors 2 of the present invention have four, and two 400 cycloid hydraulic motors 2 are arranged
At unit head housing 1 on positive and negative two of the position of cover plate 8,400 cycloid hydraulic motor 2 and unit heads
Housing 1 link position is provided with mild steel paper washer 13, built-in is provided with shaft gear 14.
Main shaft assembly on unit head housing 1 of the present invention is by joint 15, back-up ring 16, U-shaped circle 17, company
Female connector 18, card key 19, screw 20, mandrel 21, shock ring 22, main shaft 23 form；Described joint 15
Stretching out at unit head housing 1, joint 15 is internal and mandrel 21 connects, and junction is provided with back-up ring 16, back-up ring
16 and joint link position U-shaped circle 17 is set, be provided with subtract with the outside front ends of mandrel 21 on the right side of joint 15
Shaking ring 22, joint 15 and shock ring 22 link position are fixed by Harvard structure, and Harvard structure is by adapter sleeve
18, card key 19, screw 20 form；Adapter sleeve 18 jointing 15 and shock ring 22, joint 15 and subtracting
Shake ring 22 junction arranges card key 19, and adapter sleeve 18 is fixed by screw 20；Outside described mandrel 21 rear end
Side is provided with main shaft 23, mandrel 21 and main shaft 23 and is arranged on unit head housing 1 inside.
Unit head housing 1 of the present invention is solid by front capping 24, protecgulum 25, bonnet 26 and rear seal-cover 27
Fixed, front capping 24 is arranged on unit head housing 1 front end, and protecgulum 25 is arranged on unit head housing 1 side front end,
Both of which is fixed on unit head housing 1 by screw 20 and packing ring 11, and unit head housing 1 inside is provided with
Two bearings 51224 (28) are installed in the other centre position of main shaft 23, are provided with between two bearings 51224 (28)
General flat key 30, general flat key 30 and bearing is set in the middle of one gear wheel 29, gear wheel 29 and main shaft 23
Arranging spacer ring 31 between 51224 (28), gear wheel 29 other end connects the axle of 400 cycloid hydraulic motors 2
Gear 14, the other back-end location of main shaft 23 is provided with bearing NA4824 (32) and oil-sealing arrangement (33), bearing
NA4824 (32) is other is provided with bonnet 26, and bonnet 26 is arranged on rear end, unit head housing 1 side, oil-sealing arrangement
(33) rear seal-cover 27, bonnet 26 and rear seal-cover 27 are set on one side and all pass through screw 20 and packing ring 11 is fixing
On unit head housing 1.
Mandrel 21 of the present invention and main shaft 23 back-end location junction are provided with copper sheathing 34, and copper sheathing 34 is other to be arranged
Former nut 35, is fixed by screw 20, and mandrel 21 rear end and unit head housing 1 junction arrange card key 19,
Card key 19 is fixed by set 36.
High pulling torque rotary type unit head operation principle of the present invention: rotary motor passes through a pair reasonable ratio gear pair
The low speed revolution of rotary main shaft, this rotating speed need not the biggest, it is achieved the transmission of high pulling torque, by changing revolution horse
Reach the direction of hydraulic circuit, change the speed of rotary motor, it is achieved the change of unit head output speed.
Claims (5)
1. apply adjustable high pulling torque turn round multi-functional anchoring drilling machine a unit head, mainly by unit head housing,
400 cycloid hydraulic motors, main shaft assembly, 80L oil meter, mild steel paper washer, rotary valve, fixed plate, cover plate, drag
Chain support, packing ring, screw bolt and nut form；It is characterized in that: be provided with main shaft on unit head housing shell total
One-tenth, 400 cycloid hydraulic motors；Main shaft assembly, 400 cycloid hydraulic motors are respectively by bolt, packing ring and spiral shell
Female supporting fixing；Described main shaft assembly is arranged on unit head housing lower end, and 400 cycloid hydraulic motors are arranged on dynamic
Power casing is near the position of cover plate, and cover plate covers unit head housing, and junction both it arranges mild steel paper washer,
Cover plate and unit head housing are supporting fixing by bolt, packing ring and nut；Rotary valve is arranged on the cover board, rotary valve
Four corner location are fixed by fixed plate, and its fixed plate is provided with bolt and packing ring；Described cover plate one end is stretched
Going out outside power casing, drag chain support is stretched out outside unit head housing by bolt, packing ring and supporting being fixed on of nut
Cover plate on, described unit head housing side is provided with 80L oil meter.
The most according to claim 1 a kind of apply adjustable high pulling torque turn round multi-functional anchoring drilling machine power
Head, it is characterised in that: described 400 cycloid hydraulic motors have four, and two 400 cycloid hydraulic motors are respectively
It is arranged on unit head housing on positive and negative two of the position of cover plate, 400 cycloid hydraulic motors and power head capsule
Body link position is provided with mild steel paper washer, built-in is provided with shaft gear.
The most according to claim 1 a kind of apply adjustable high pulling torque turn round multi-functional anchoring drilling machine power
Head, it is characterised in that: the main shaft assembly on described unit head housing by joint, back-up ring, U-shaped circle, adapter sleeve,
Card key, screw, mandrel, shock ring, main shaft form；Described joint stretches out at unit head housing, inside joint
With mandrel connect, junction is provided with back-up ring, back-up ring and joint link position and arranges U-shaped circle, on the right side of joint and
The outside front ends of mandrel is provided with shock ring, joint and shock ring link position and is fixed by Harvard structure, Harvard
Structure is made up of adapter sleeve, card key, screw；Adapter sleeve jointing and shock ring, joint and shock ring connect
Place arranges card key, and adapter sleeve is fixed by screw；It is provided with main shaft, mandrel and main shaft outside described core back-end to set
Put in unit head enclosure interior.
A kind of application the most according to claim 1 and 2 turns round the dynamic of multi-functional anchoring drilling machine at adjustable high pulling torque
Power head, it is characterised in that: described unit head housing is fixed by front capping, protecgulum, bonnet and rear seal-cover, front
Capping is arranged on unit head housing forward end, and protecgulum is arranged on unit head housing side front end, and both of which passes through screw
Being fixed on unit head housing with packing ring, two axles are installed in the other centre position of the main shaft that unit head enclosure interior is provided with
Hold 51224, be provided with a gear wheel between two bearings 51224, in the middle of gear wheel and main shaft, set general flat key,
Arranging spacer ring between general flat key and bearing 51224, the gear wheel other end connects the axle of 400 cycloid hydraulic motors
Gear, the other back-end location of main shaft is provided with bearing NA4824 and oil-sealing arrangement, is provided with bonnet by bearing NA4824,
Bonnet is arranged on rear end, unit head housing side, and it is the most logical that oil-sealing arrangement arranges rear seal-cover, bonnet and rear seal-cover on one side
Cross screw and packing ring is fixed on unit head housing.
A kind of application the most according to claim 1 and 2 turns round the dynamic of multi-functional anchoring drilling machine at adjustable high pulling torque
Power head, it is characterised in that: described mandrel and junction, rear-end of spindle position are provided with copper sheathing, arrange former spiral shell by copper sheathing
Mother, is fixed by screw, and core back-end and unit head housing junction arrange card key, and card key is fixing by set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223123.0A CN105971493A (en) | 2016-04-12 | 2016-04-12 | Power head applied to adjustable large-torque rotation multi-functional anchor drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610223123.0A CN105971493A (en) | 2016-04-12 | 2016-04-12 | Power head applied to adjustable large-torque rotation multi-functional anchor drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105971493A true CN105971493A (en) | 2016-09-28 |
Family
ID=56989319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610223123.0A Pending CN105971493A (en) | 2016-04-12 | 2016-04-12 | Power head applied to adjustable large-torque rotation multi-functional anchor drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105971493A (en) |
-
2016
- 2016-04-12 CN CN201610223123.0A patent/CN105971493A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021068557A1 (en) | Rotary drilling rig power head and corresponding rotary drilling rig | |
| CN103256007B (en) | Underground dynamic pressurizing drilling rig | |
| CN104594801B (en) | Rock drilling tool and disturbance rock-breaking and well-drilling method are broken in disturbance | |
| CN109098654B (en) | Mechanical axial rotation percussion drilling tool based on screw drilling tool | |
| CN202503894U (en) | Large-aperture tree well drilling machine | |
| CN201526278U (en) | Low-speed large-torque screw drill tool | |
| CN105275405A (en) | Novel PDC drill bit for improving rock-breaking efficiency based on impact effect | |
| CN108625770A (en) | A kind of the crushing power head and its application method of rotatable impact | |
| CN201730544U (en) | Hydraulic rotary table of oil drilling machine | |
| CN108468617B (en) | Hydraulic rock drill with built-in rotary power output | |
| CN205713951U (en) | A kind of apply the unit head using single direction thrust ball bearing on anchoring drilling machine | |
| CN205713956U (en) | A kind of apply the unit head of four fluid motor-driven on anchoring drilling machine | |
| CN205713950U (en) | A kind of apply the unit head improving main shaft on anchoring drilling machine | |
| CN105971493A (en) | Power head applied to adjustable large-torque rotation multi-functional anchor drilling machine | |
| CN205713949U (en) | A kind of unit head being applied to the adjustable high pulling torque multi-functional anchoring drilling machine of revolution | |
| CN205713955U (en) | A kind of apply the unit head using needle bearing on anchoring drilling machine | |
| CN2926475Y (en) | Hydraulic spherical impact rock driller | |
| CN112031641B (en) | Driving device for anchoring drilling machine | |
| CN202468927U (en) | Reduction box for power head and vehicular coalbed gas drill rig with reduction box | |
| CN101086160B (en) | Rotary-digging stillage truck | |
| CN209244501U (en) | A kind of piling machine for building with anti-fracture function | |
| CN208280894U (en) | A kind of crushing power head of rotatable impact | |
| CN210714465U (en) | Double dynamical screw thread bored pile rig | |
| CN208089928U (en) | A kind of split type planet carrier used in rotary digging drill power head torque structure | |
| CN106368702A (en) | Mining handheld all-hydraulic drill based on internal curve motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160928 |