CN108414434A - More picks turn round cutting test platforms under a kind of high confining pressure - Google Patents
More picks turn round cutting test platforms under a kind of high confining pressure Download PDFInfo
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- CN108414434A CN108414434A CN201810180554.2A CN201810180554A CN108414434A CN 108414434 A CN108414434 A CN 108414434A CN 201810180554 A CN201810180554 A CN 201810180554A CN 108414434 A CN108414434 A CN 108414434A
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- crossbeam
- picks
- hatchcover
- confining pressure
- turn round
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
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Abstract
The invention discloses more picks under a kind of high confining pressure to turn round cutting test platform,Including pedestal and control system,It is provided with hyperbaric chamber and rack on the pedestal,Rock sample is put into hyperbaric chamber,Simulated sea bottom mining environment,Crossbeam is set above hyperbaric chamber,Crossbeam is connect by feeding hydrocylinder with frame top,Feeding hydrocylinder inbuilt displacement sensor,The hydraulic motor being sequentially connected successively is provided on crossbeam,Shaft coupling,Rotary shaft and cutterhead,It is provided with pressure sensor and flow sensor on the inlet and outlet oil circuit of hydraulic motor,It is provided with torque sensor on the output shaft of hydraulic motor,Cutterhead bottom is equipped with toothholder,Pick-like bit is installed on toothholder,During the test,Pick-like bit vertical feed and revolution are driven respectively by feeding hydrocylinder and hydraulic motor,To simulated sea bottom mining,Data acquisition and issuance is carried out by various kinds of sensors respectively again,To inquire into the stressing conditions and rock breaking mechanism of pick-like bit,To improve the working durability of cutter.
Description
Technical field
The present invention relates to it is a kind of for ocean engineering, deep-sea mining field high confining pressure under digging head pick-like bit cutting
Adjustable more picks turn round cutting test platform under experiment porch more particularly to a kind of high confining pressure.
Background technology
With the increasingly exhaustion of land metallic mineral resources, the mankind gradually start sight to turn to polar region, ocean even
Space.Its mesopelagic (200 meter Dao1000 meter Shui Shen) metallic mineral resources is due to being widely present in vast ocean, it is considered to be 21 century land metallic ore
The most potential replaceable resources of resource are produced, the grand strategy target of various countries' development is had become.The blocky more metal vulcanizations in seabed
Object (Seafloor Massive Sulfide, SMS) is after the deep sea mineral resources human knowledge such as polymetallic nodules, cobalt bearing crust
Another new Deep Sea Minerals arrived, rich in metals such as copper, lead, zinc, gold and silver.Compared to polymetallic nodules and rich cobalt knot
Shell, for Polymetallic sulphide since its preservation depth of water is shallower, ore reserves is big, and metal content is high and is rich in a large amount of noble metals, is considered
It more easily realizes exploitation and has more extraction value, infer according to current Deep-sea Mining Technology development level, the more metals in seabed
Sulfide is expected to adopt object as the head of deep-sea mining.
Under high confining pressure effect, pick Cutting Process has jump impact crushing to be transformed into extruding, shearing slip change
The placticity failure process of shape.At this point, the abrasion and failure of high confining pressure bottom tool have very big difference with land, due to the mistake of cutter
Effect, it is desirable that replace cutter during deep-sea mining, this process workload is extremely huge and easily causes economic loss, therefore
It is necessary to the cutting breakage properties and the broken effect of sample ore under high confining pressure when more seabed sample ores that pick-like bit combination cutting is broken
Fruit is analyzed, to further investigate pick-like bit rock breaking mechanism under high confining pressure, so as to pick and roller digging head structure,
Installation and kinematic parameter are correspondingly improved, and rational acquisition scheme is chosen.Thus more picks under this high confining pressure have been invented
Turn round cutting test platform.
The institution of higher learning such as TU Delft Polytechnics, domestic China Mining University, Central South University enclose seawater at present
Pressure studies the Cracking Mechanism of rock, and the state university of kansas, U.S.A has made Rock Cutting experiment dress under high confining pressure
It sets, but has not seen delivering for related patents.The Cracking Mechanism under high confining pressure in pick-like bit rock break-off process is adequately disclosed, is
The different confining pressures of reflection, installation parameter, kinematic parameter and the arrangement mode of system cut pick-like bit the influence of ore body, therefore send out
It is illustrated this suitable for the adjustable revolution cutting test platform in pick-like bit position under high confining pressure.
Invention content
In view of this, the object of the present invention is to provide more picks under a kind of high confining pressure to turn round cutting test platform, can realize
More installations pick, simulate high confining pressure under pick-like bit cutting ore situation, and can realize confining pressure, pick installation parameter and
The adjustment of kinematic parameter, to inquire into the stressing conditions and rock breaking mechanism of pick-like bit, to improve the working durability of cutter.
The present invention is solved the above problems by following technological means：More picks turn round cutting test platforms under a kind of high confining pressure,
Including pedestal and control system, it is provided with hyperbaric chamber and rack on the pedestal, hatchcover is provided at the top of the hyperbaric chamber, it is described
Hatchcover realizes lifting by the vertical hydraulic cylinder being set on the base, and is provided with crossbeam above hatchcover, the crossbeam passes through feeding
Hydraulic cylinder is connect with frame top, the feeding hydrocylinder inbuilt displacement sensor, and swing mechanism and cutterhead are provided on crossbeam,
The swing mechanism includes the hydraulic motor, shaft coupling and rotary shaft being sequentially connected successively, the inlet and outlet oil of the hydraulic motor
Road is provided with pressure sensor and flow sensor, and the rotary shaft passes through hatchcover and is rotatablely connected with hatchcover, hydraulic motor
Output shaft on be provided with torque sensor, the cutterhead is coaxially mounted to rotary shaft bottom, and cutterhead bottom is connected by toothholder
Plate is equipped with toothholder, is equipped with pick-like bit on the toothholder, the control system respectively with vertical hydraulic cylinder, feeding hydraulic pressure
Cylinder, displacement sensor, hydraulic motor, pressure sensor, flow sensor and torque sensor electrically connect.
Further, the crossbeam bottom is connected with fixed beam by fixed column, and bearing housing, institute are provided in the fixed beam
It states rotary shaft and passes through bearing housing and fixed beam, fixed beam is for realizing hydraulic motor and torque sensor, shaft coupling and bearing
Relatively orientation between case and fixation.
Further, crossbeam guiding and balance mechanism are provided in the rack, the crossbeam is oriented to and balance mechanism includes
Vertical beam is fixed on the vertical beam slide bar being arranged in juxtaposition and the sliding slot guide rail being socketed with sliding bar, the vertical beam by angle steel
In rack, the sliding slot guide rail is clamped and connected by crossbeam clamping piece with crossbeam.
Further, the guide upright post for hatchcover slide-and-guide is provided on the pedestal, the hatchcover is passed through to be oriented to and be stood
It column and is slidably socketed with guide upright post.
Further, it is provided with rotary seal between the rotary shaft and hatchcover.
Further, the rack is assembled into rectangle frame rack-like by more root posts and Duo Gen upper beams, and the column side passes through
Floor is connect with pedestal, and the hyperbaric chamber is in the inside of rack.
Further, the toothholder connecting plate is detachably connected with cutterhead.
Beneficial effects of the present invention：More picks turn round cutting test platform, including pedestal and control under the high confining pressure of the present invention
System is provided with hyperbaric chamber and rack on the pedestal, rock sample, simulated sea bottom mining environment, high pressure is put into hyperbaric chamber
Crossbeam is set above cabin, and crossbeam is connect by feeding hydrocylinder with frame top, feeding hydrocylinder inbuilt displacement sensor, crossbeam
On be provided with the hydraulic motor being sequentially connected successively, shaft coupling, rotary shaft and cutterhead, be arranged on the inlet and outlet oil circuit of hydraulic motor
There are pressure sensor and flow sensor, torque sensor is provided on the output shaft of hydraulic motor, the installation of cutterhead bottom is with teeth
, pick-like bit is installed on toothholder, during the test, pick-like bit is driven by feeding hydrocylinder and hydraulic motor respectively
Vertical feed and revolution to simulated sea bottom mining, then carry out Data acquisition and issuance by various kinds of sensors respectively, with
Just accurate to obtain cutting depth, cutting speed and the suffered clipping force situation of pick when testing, and pick broken rock can be observed
Ore fracturing features afterwards, to be cut for pick rock breaking mechanism under system research high confining pressure and improvement cutting tooth structure, extension pick
Service life offer foundation is cut, to achieve the purpose that extend cutter life.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is that more picks turn round cutting test platform front view under high confining pressure；
Fig. 2 is that more picks turn round cutting test platform A-A direction views under high confining pressure；
Fig. 3 is that more picks turn round cutting test platform B-B direction view under high confining pressure；
Fig. 4 is that more picks turn round cutting test platform bearing box part C partial views under high confining pressure；
Fig. 5 is that more picks turn round cutting test platform rotary seal part D partial views under high confining pressure；
Fig. 6 is that more picks turn round cutting test platform hyperbaric chamber static seal part E partial views under high confining pressure.
Specific implementation mode
Below with reference to attached drawing, the present invention is described in detail, as shown in figures 1 to 6：The present invention provides a kind of high confining pressures
Under more picks turn round cutting test platforms, including pedestal 29 and control system, the pedestal middle position are provided with hyperbaric chamber 25, high
Ballasting both sides are arranged vertically 6 root posts, and left and right each 3, column bottom is fixed on the base, affixed more upper beams at the top of column
1, column and Duo Gen upper beams are assembled into the rack 2 of rectangular frame shape, and column side is connect by floor 28 with pedestal, floor pair
Column plays support firm effect, hyperbaric chamber open top, and hyperbaric chamber opening inner wall is provided with static seal structure 24, hyperbaric chamber opening
Place is provided with hatchcover 18, and the hatchcover both sides are provided with the vertical hydraulic cylinder 27 of 2 promotion hatchcover oscilaltions, and hatchcover both sides are also
4 guide upright posts 26 are disposed with, the guide upright post passes through hatchcover and is slidably socketed with hatchcover, and guide upright post is to the vertical of hatchcover
Movement play the guiding role, and is provided with crossbeam 7 above hatchcover, the cross rail top both sides pass through 2 feeding hydrocylinders 3 and rack top
Portion connects, and the feeding hydrocylinder inbuilt displacement sensor, cross rail top middle position is provided with hydraulic motor 4, crossbeam bottom
Both sides are connected with fixed beam 16 by 4 fixed columns 13, are provided with bearing housing 14 in the fixed beam, the hydraulic motor into
It is provided with pressure sensor and flow sensor on outlet oil circuit, the output shaft of hydraulic motor is sequentially connected with shaft coupling 12 successively
With rotary shaft 19, the output torque of hydraulic motor is also measured by the way that torque sensor 11 is arranged, the rotary shaft sequentially passes through axis
Case, fixed beam and hatchcover are held, rotary seal 17 is provided between rotary shaft and hatchcover, fixed beam realizes hydraulic motor and torque
Relatively orientation between sensor, shaft coupling and bearing housing and fixation, rotary shaft bottom are coaxially arranged with cutterhead 20, knife
Pan bottom is equipped with toothholder 22 by toothholder connecting plate 21, and the toothholder connecting plate is connect by screw 30 with cutterhead, the tooth
Pick-like bit 23 is installed on seat, pick-like bit established angle and arrangement can be realized by replacing toothholder connecting plate and toothholder weldment
The adjustment of mode, to realize adjustment of the pick-like bit on different installation parameters and kinematic parameter；Toothholder connecting plate quantity
It is adjustable, can simulate it is more pick-like bit is turned round rock cutting, during the experiment, the distance between adjacent two pick-like bits exists
It is adjustable between 30-100mm, improve the flexible and changeable property of device, the control system respectively with vertical hydraulic cylinder, feeding hydraulic pressure
Cylinder, displacement sensor, hydraulic motor, pressure sensor, flow sensor and torque sensor electrically connect, and control system uses
PLC is controlled, and power is provided by hydraulic system.
It is further improved as to above-mentioned technical proposal, crossbeam both sides are provided with 4 sets of crossbeams guiding and balance mechanism, institute
State that crossbeam is oriented to and balance mechanism includes that vertical beam 6, the slide bar being arranged in juxtaposition with vertical beam 9 and the sliding slot that is socketed with sliding bar are led
Rail 8, the vertical beam are fixed on the rack by angle steel 10, and the sliding slot guide rail is clamped and connected by crossbeam clamping piece 5 with crossbeam,
Slide bar mounting seat 15 is provided on vertical beam.4 sliding slot guide rails not only play the guiding role to moving up and down for crossbeam, but also can prevent
Feeding hydrocylinder is influenced by torque.
Specific work process is：
First rise certain stroke upwards by feeding hydrocylinder 3 is synchronous with vertical hydraulic cylinder 27 when work, make hatchcover 18 and returns
In the range of disk 20 releases hyperbaric chamber 25, in feeding hydrocylinder and vertical hydraulic cylinder uphill process, sliding slot guide rail 8 and guiding are vertical
Column 26 play the guiding role, and then rock sample is put into hyperbaric chamber 25, on cutterhead 20 installation fix toothholder mounting plate 21,
After toothholder 22 and pick-like bit 23, feeding hydrocylinder 3 and vertical hydraulic cylinder 27 decline certain stroke to cutterhead 20 completely into height
In ballasting 25, while hatchcover 18 is retracted into blending bolt fastening；A level pressure is forced into hyperbaric chamber 25 by water inlet line at this time
Power, so as to simulated sea bottom mining environment, pressure is adjustable in 0-30MPa in hyperbaric chamber, after pressure is steady, drives feeding hydrocylinder
3 feed down, and controlling pick-like bit 23 by pressure sensor contacts rock sample, then passes through pressure sensor and displacement sensing
Device ensures that pick-like bit 23 can be pressed into rock sample and there are one suitable thicknesses of cutting.Rotary hydraulic motor 4 is then driven,
It is set to generate suitable speed, via torque sensor 11, shaft coupling 12 drives the cutterhead 20 being fixed in rotary shaft 19 to rotate,
Torque and rotating speed is set to be transmitted on pick-like bit 23, pick shape when simulating helix drum digging head cutting ore under high confining pressure with this
The cutting situation of pick 23, and the various kinds of sensors by being equipped on feeding hydrocylinder 3 and hydraulic motor 4 carry out data acquisition and
Analysis, specifically, the thickness of cutting of displacement sensor pick-like bit, pressure sensor, flow sensor and torque pass
Power, torque and rotational speed when sensor composite measurement is cut, obtain in real time after finally being handled in data processing software
Data about the thickness of cutting of pick-like bit 23, cutting speed and clipping force.After completing ore cutting, pass through outlet conduit pair
Hyperbaric chamber 25 carries out off-load, while feeding hydrocylinder 3 being retracted and is locked by oil cylinder itself locking member.
Using the testing stand of the structure, the cutting depth of pick, cutting speed and suffered section when can accurately obtain experiment
Power situation is cut, and the ore fracturing features after pick broken rock can be observed, to be pick broken rock machine under system research high confining pressure
Reason and improvement cutting tooth structure extend pick working durability offer foundation, to achieve the purpose that extend cutter life.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (7)
1. more picks turn round cutting test platform under a kind of high confining pressure, it is characterised in that：It is described including pedestal (29) and control system
It is provided with hyperbaric chamber (25) and rack (2) on pedestal, is provided with hatchcover (18) at the top of the hyperbaric chamber, the hatchcover passes through setting
Vertical hydraulic cylinder (27) on pedestal realizes lifting, is provided with crossbeam (7) above hatchcover, the crossbeam passes through feeding hydrocylinder
(3) it is connect with frame top, the feeding hydrocylinder inbuilt displacement sensor, swing mechanism and cutterhead is provided on crossbeam
(20), the swing mechanism includes the hydraulic motor (4), shaft coupling (12) and rotary shaft (19) being sequentially connected successively, the liquid
Pressure sensor and flow sensor are provided on the inlet and outlet oil circuit of pressure motor, the rotary shaft passes through hatchcover and turns with hatchcover
It is dynamic to connect, it is provided with torque sensor (11) on the output shaft of hydraulic motor, the cutterhead is coaxially mounted to rotary shaft bottom, knife
Pan bottom is equipped with toothholder (22) by toothholder connecting plate (21), and pick-like bit (23), the control are equipped on the toothholder
System respectively with vertical hydraulic cylinder, feeding hydrocylinder, displacement sensor, hydraulic motor, pressure sensor, flow sensor and torsion
Square sensor is electrically connected.
2. more picks turn round cutting test platform under high confining pressure according to claim 1, it is characterised in that：The crossbeam bottom
It is connected with fixed beam (16) by fixed column (13), bearing housing (14) is provided in the fixed beam, the rotary shaft passes through axis
Case and fixed beam are held, fixed beam is for realizing the opposite position between hydraulic motor and torque sensor, shaft coupling and bearing housing
Set positioning and fixation.
3. more picks turn round cutting test platform under high confining pressure according to claim 2, it is characterised in that：It is set in the rack
It is equipped with crossbeam guiding and balance mechanism, the crossbeam guiding and balance mechanism include the slide bar that vertical beam (6) and vertical beam are arranged in juxtaposition
(9) and the sliding slot guide rail (8) with sliding bar socket, the vertical beam are fixed on the rack by angle steel (10), the sliding slot
Guide rail is clamped and connected by crossbeam clamping piece (5) with crossbeam.
4. more picks turn round cutting test platform under the high confining pressure according to claim 1-3 any one, it is characterised in that：Institute
The guide upright post (26) being provided on pedestal for hatchcover slide-and-guide is stated, the hatchcover passes through guide upright post and and guide upright post
It is slidably socketed.
5. more picks turn round cutting test platform under high confining pressure according to claim 1, it is characterised in that：The rotary shaft with
Rotary seal (17) is provided between hatchcover.
6. more picks turn round cutting test platform under high confining pressure according to claim 1, it is characterised in that：The rack is by more
Root post and Duo Gen upper beams (1) are assembled into rectangle frame rack-like, and the column side is connect by floor (28) with pedestal, the height
Ballasting is in the inside of rack.
7. more picks turn round cutting test platform under high confining pressure according to claim 1, it is characterised in that：The toothholder connection
Plate is detachably connected with cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810180554.2A CN108414434B (en) | 2018-03-05 | 2018-03-05 | Multi-cutting-tooth rotary cutting test bed under high confining pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810180554.2A CN108414434B (en) | 2018-03-05 | 2018-03-05 | Multi-cutting-tooth rotary cutting test bed under high confining pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108414434A true CN108414434A (en) | 2018-08-17 |
| CN108414434B CN108414434B (en) | 2021-03-02 |
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| CN201810180554.2A Expired - Fee Related CN108414434B (en) | 2018-03-05 | 2018-03-05 | Multi-cutting-tooth rotary cutting test bed under high confining pressure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109026009A (en) * | 2018-10-17 | 2018-12-18 | 中南大学 | A kind of digging head of Deep Sea Minerals cobalt bearing crust |
| CN109506926A (en) * | 2019-01-26 | 2019-03-22 | 湘潭大学 | A kind of TBM hob broken rock testing stand |
| CN109612717A (en) * | 2019-01-26 | 2019-04-12 | 湘潭大学 | A kind of TBM hob broken rock testing stand |
| CN109915162A (en) * | 2019-03-09 | 2019-06-21 | 上海创力集团股份有限公司 | A kind of hard rock cutting means |
| CN110361278A (en) * | 2019-07-02 | 2019-10-22 | 中国科学院武汉岩土力学研究所 | Machinery-waterpower combined-breaking rock multi-function test stand and its test method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026009A (en) * | 2018-10-17 | 2018-12-18 | 中南大学 | A kind of digging head of Deep Sea Minerals cobalt bearing crust |
| CN109026009B (en) * | 2018-10-17 | 2023-11-21 | 中南大学 | Mining head for cobalt-rich crust of submarine mineral resources |
| CN109506926A (en) * | 2019-01-26 | 2019-03-22 | 湘潭大学 | A kind of TBM hob broken rock testing stand |
| CN109612717A (en) * | 2019-01-26 | 2019-04-12 | 湘潭大学 | A kind of TBM hob broken rock testing stand |
| CN109612717B (en) * | 2019-01-26 | 2020-06-05 | 湘潭大学 | TBM hob rock breaking test bed |
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| CN109915162A (en) * | 2019-03-09 | 2019-06-21 | 上海创力集团股份有限公司 | A kind of hard rock cutting means |
| CN109915162B (en) * | 2019-03-09 | 2024-06-04 | 上海创力集团股份有限公司 | Hard rock cutting device |
| CN110361278A (en) * | 2019-07-02 | 2019-10-22 | 中国科学院武汉岩土力学研究所 | Machinery-waterpower combined-breaking rock multi-function test stand and its test method |
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