CN108303337A - A kind of New Kind of Hob abrasion experimental method - Google Patents
A kind of New Kind of Hob abrasion experimental method Download PDFInfo
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- CN108303337A CN108303337A CN201810108072.6A CN201810108072A CN108303337A CN 108303337 A CN108303337 A CN 108303337A CN 201810108072 A CN201810108072 A CN 201810108072A CN 108303337 A CN108303337 A CN 108303337A
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- hobboing cutter
- rock sample
- rock
- support plate
- rotating machine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a kind of New Kind of Hob to denude experimental method, support plate rotation is driven by rotary oil cylinder, so that the right end of support plate moves up, entire support plate is tilted to left end and horizontal by certain angle, so that rock sample upper surface is also horizontal by certain angle, and then hobboing cutter gos deep into the pile penetration of rock sample in moving process and changes always as hobboing cutter is mobile, the setting of wherein angle [alpha] makes hobboing cutter contact rock sample always.The present invention realizes hobboing cutter in the experimentation for moving cutting along the rock mass surface with angle of inclination by simple method, and the pile penetration of hobboing cutter changes with mobile always, has investigated abrasion situation of the pile penetration variation to hobboing cutter.
Description
Technical field
The present invention relates to Shield Construction Technique field, New Kind of Hob abrasion is real during specially a kind of prediction shield-tunneling construction
Proved recipe method.
Background technology
During shield-tunneling construction, hob abrasion is broadly divided into two class of normal wear and heel and toe wear, and normal wear refers to rolling
The degree of wear is almost the same everywhere for knife cutter ring, when cutter ring wear height is more than specified value, it is believed that rolling blade losing efficacy is replaced.
It is such as comparative maturity and very representative although many for the research of shield-tunneling construction tool wear at present
CAI values are tested, and are mainly weighed to rock abrasiveness index, not only cannot directly be predicted in Different Strata, hobboing cutter mill
Damage amount, and cannot effectively carry out cutter once abrasion and secondary abrasion research.With the exploitation of the underground space, subway tunnel,
Seepage tunnel, railway tunnel etc., in construction process, tool wear forecasting of cost has become the problem of construction party is paid close attention to the most
One of.
Hobboing cutter is usually along the plane of rock sample and is cut in existing abrasion experiment, to investigate different hobboing cutters pair
In the erosion degree of various rock samples, then it is directed to different rock samples and obtains the minimum hobboing cutter of abrasion, but in actual engineering,
Some data obtained from abrasion experimental data are accurate, that is, the erosion degree for testing hobboing cutter and the phase in Practical Project
Together, but engineering staff also found in shield driving engineering, and the abrasion experimental data obtained in some experiments is inaccurate, and has
Body is exactly the hobboing cutter for denuding the smaller abrasion determined in experiment, wears in engineering and instead larger, very short time interior just needs
Replace hobboing cutter.It is found by the analysis and research of applicant, due to the mistake that hobboing cutter is advanced along the contact surface of rock mass in Practical Project
Cheng Zhong is not plane in many cases, that is to say, that hobboing cutter pile penetration during traveling（Hobboing cutter cuts the depth of rock mass
Degree）It is changed, it is therefore desirable to be adjusted to existing appearance abrasion experiment.Applicant has developed a kind of novel thus
Hobboing cutter denudes experimental method, has obtained the abrasion data more close to engineering practice.
Invention content
A kind of New Kind of Hob abrasion experimental method, device includes loading frame, horizontal addload system, rock sample adjusting apparatus；
The horizontal addload system includes the electric rotating machine being arranged on loading frame right support beam, and is connect with electric rotating machine
Drive screw；Hobboing cutter is provided with by hobboing cutter fixed block on the drive screw and drives the servo motor of hobboing cutter rotation.
The rock sample adjusting apparatus includes the support plate being arranged in loading frame lower part, and support plate is driven by rotary oil cylinder
Rotation, support plate top are provided with the rock case of clamping rock sample, lift cylinder are provided between rock case and support plate.
Support plate can be made to generate certain angle by rotary oil cylinder so that rock sample upper surface also with horizontal plane
It is at an angle, so that the pile penetration that hobboing cutter gos deep into rock sample in moving process changes as hobboing cutter is mobile always,
The wherein setting of α makes hobboing cutter contact rock sample always.
Rock sample can be adjusted with hobboing cutter at a distance from vertical direction by lift cylinder, after carrying out cutting at one time, promote oil
Cylinder moves down so that rock sample leaves hobboing cutter, is conveniently replaceable rock sample and hobboing cutter.
Technical scheme is as follows：
（1）Rock sample is chosen, rock sample is cut by the rectangle to match with rock case size by cutter device；Rock sample is put into rock case
It is interior and fixed with clamping cylinder so that the upper surface of rock sample is parallel with support plate；
（2）Model hobboing cutter is weighed and is installed in hobboing cutter rotary shaft；
（3）Support plate rotation is driven by rotary oil cylinder so that the right end of support plate moves up, and entire support plate is inclined to left end
Tiltedly and horizontal by certain angle；The angle [alpha] meets following formula：
sinα*L<R, and α>0, wherein R are hobboing cutter radius, and L is the distance at rock sample upper surface both ends；
When α meets above-mentioned formula, hobboing cutter could be met and contact inclined rock sample surface, and hobboing cutter always in moving process
The pile penetration for going deep into rock sample changes as hobboing cutter is mobile always, is unlikely to so that hobboing cutter can not contact rock sample or be more than hobboing cutter
Center and stop knife；
（4）Drive screw rotation is driven by electric rotating machine, hobboing cutter is adjusted to the left side of rock sample；
（5）The movement of rock case is driven by lift cylinder, to make rock sample upper surface peak be no more than rolling by mobile rock sample
Knife center, minimum point is not less than hobboing cutter outer rim bottom, thus, it is possible to which so that hobboing cutter can cut always rock in moving process
Sample, without generating idle running；
（6）Start servo motor driving hobboing cutter with certain rotational speed, starts electric rotating machine and electric rotating machine is set and move horizontally
Speed makes electric rotating machine driving hobboing cutter move right and cuts rock sample, and since rock sample is tilted to the left, hobboing cutter gos deep into passing through for rock sample
In-degree from left to right gradually increases, and after hobboing cutter leaves rock sample, suspends electric rotating machine；
（7）Reverse drive servo motor makes hobboing cutter reversely rotate, and is again started up electric rotating machine, and drive screw is reversely revolved
Turn, hobboing cutter is moved to the left cutting rock, and since rock sample is tilted to the left, the pile penetration that hobboing cutter gos deep into rock sample gradually subtracts from right to left
It is small, after hobboing cutter leaves rock sample, suspend electric rotating machine and servo motor；
（8）Repeat step（5）-（7）Three to five times；
（9）Hobboing cutter is unloaded, computation model hobboing cutter loses quality and loses quality, design abrasion classification with landwaste；
（10）It exchanges a kind of lower hobboing cutter for, while replacing repetition step（3）-（6）；According to the abrasion grades of different hobboing cutters choose with
The hobboing cutter type of specific rock sample adaptation.
Technique effect：
1, the present invention realizes hobboing cutter in the mistake for moving cutting along the rock mass surface with angle of inclination by simple method
Cheng Zhong, pile penetration change with mobile always, have investigated abrasion situation of the pile penetration variation to hobboing cutter.
2, the movement of variation and rock sample in rock case by the angle of support plate in a certain range, realizes and is rolling
Knife cutting process both will not stop knife because of rock sample more than hobboing cutter center, will not make hobboing cutter is cut to dally and cause less than rock sample
It cannot achieve the abrasion of rock sample.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the A-A of attached drawing 1 to schematic cross-section.
Specific implementation mode
A kind of New Kind of Hob provided by the invention denudes experimental method, and device includes loading frame 1, horizontal addload system, rock
Sample adjusting apparatus；
The horizontal addload system includes the electric rotating machine 2 being arranged on 1 right support beam of loading frame, and electric rotating machine 2 passes through electricity
Machine fixed block 21 is fixed on right support beam, and mounting hole 3 is provided with above 1 or so supporting beam of loading frame, is led in mounting hole 3
It crosses bearing and drive screw 31 is installed, electric rotating machine 2 drives biography by splined shaft is connect with 31 upper spline hole of drive screw
Dynamic screw rod 31 rotates；It is provided with hobboing cutter fixed block 4 on the drive screw 31, threaded hole is provided in hobboing cutter fixed block, is driven
Screw rod 31 is rotatably connected with hobboing cutter fixed block 4；4 lower section of hobboing cutter fixed block is provided with servo motor 41 and hobboing cutter rotary shaft 42, rolls
Knife 43 is arranged below hobboing cutter rotary shaft 41, and wherein servo motor 41 drives hobboing cutter 43 to be rotated in hobboing cutter rotary shaft 42.
The rock sample adjusting apparatus includes support plate 5, and the left support beam lower part of loading frame 1 is provided with hinge hole 51, branch
The left end of fagging 5 is hinged by hinge hole 31 and left support beam；1 bottom end rail right end of loading frame is provided with rotary oil cylinder 52, rotation
Turn the pistons end of oil cylinder 52 and support plate 5 connect and then realizes that support plate 5 rotates, 5 right end of support plate not with loading frame
Right support beam contacts,；5 top of support plate is provided with rock case 6 by lift cylinder 61, and rock sample 62, rock sample 62 are equipped in rock case 6
Pass through the distance between the adjustment of lift cylinder 61 and hobboing cutter 43.
1 upper beam of further loading frame is equipped with trapezoidal sliding rail, rolls 4 top of fixed block and is provided with sliding bar 44,
44 top of middle sliding bar is trapezoidal sliding shoe, and trapezoidal sliding shoe is slided with the cooperation of trapezoidal sliding rail.
It is symmetrically arranged with clamping cylinder 7 in the left frame and correct frame of further rock case 6, the output end of clamping cylinder 7 is set
It is equipped with fixed block, rock sample 62 is fixed in rock case 6 by fixed block by clamping cylinder 7.
Rotary oil cylinder can be by driving support plate rotation so that the right end of support plate moves up, thus entire support plate
It is tilted to left end, but also rock sample is tilted to identical direction；
Technical scheme is as follows：
（1）Rock sample is chosen, rock sample is cut by the rectangle to match with rock case size by cutter device；Rock sample is put into rock case
It is interior and fixed with clamping cylinder；
（2）Model hobboing cutter is weighed and is installed in hobboing cutter rotary shaft；
（3）Support plate rotation is driven by rotary oil cylinder so that the right end of support plate moves up, and entire support plate is inclined to left end
Tiltedly and horizontal by certain angle；The angle [alpha] meets following formula：
sinα*L<R, and α>0, wherein R are hobboing cutter radius, and L is the distance at rock sample upper surface both ends；
When α meets above-mentioned formula, hobboing cutter could be met and contact inclined rock sample surface, and hobboing cutter always in moving process
The pile penetration for going deep into rock sample changes as hobboing cutter is mobile always, is unlikely to so that hobboing cutter can not contact rock sample or be more than hobboing cutter
Center and stop knife；
（4）Drive screw rotation is driven by electric rotating machine, hobboing cutter is adjusted to the left side of rock sample；
（5）The movement of rock case is driven by lift cylinder, to make rock sample upper surface peak be no more than rolling by mobile rock sample
Knife center, minimum point is not less than hobboing cutter outer rim bottom, thus, it is possible to which so that hobboing cutter can cut always rock in moving process
Sample, without generating idle running；
（6）Start servo motor driving hobboing cutter with certain rotational speed, starts electric rotating machine and electric rotating machine is set and move horizontally
Speed makes electric rotating machine driving hobboing cutter move right and cuts rock sample, and since rock sample is tilted to the left, hobboing cutter gos deep into passing through for rock sample
In-degree from left to right gradually increases, and after hobboing cutter leaves rock sample, suspends electric rotating machine；
（7）Reverse drive servo motor makes hobboing cutter reversely rotate, and is again started up electric rotating machine, and drive screw is reversely revolved
Turn, hobboing cutter is moved to the left cutting rock, and since rock sample is tilted to the left, the pile penetration that hobboing cutter gos deep into rock sample gradually subtracts from right to left
It is small, after hobboing cutter leaves rock sample, suspend electric rotating machine and servo motor；
（8）Repeat step（5）-（7）Three to five times；
（9）Hobboing cutter is unloaded, computation model hobboing cutter loses quality and loses quality, design abrasion classification with landwaste；
（10）It exchanges a kind of lower hobboing cutter for, while replacing repetition step（3）-（6）；According to the abrasion grades of different hobboing cutters choose with
The hobboing cutter type of specific rock sample adaptation.
The present invention realizes hobboing cutter and is moving cutting along the rock mass surface with angle of inclination by simple method
In the process, pile penetration changes with mobile always, has investigated abrasion situation of the pile penetration variation to hobboing cutter.
The above case study on implementation is merely to illustrate the preferred embodiment of the present invention, but the present invention is not limited to above-mentioned embodiment party
Formula, the field those of ordinary skill within the scope of knowledge, within the spirit and principles in the present invention made by it is any
Modification, equivalent substitute and improvement etc., are regarded as the protection domain of the application.
Claims (3)
1. a kind of New Kind of Hob denudes experimental method, device includes loading frame, horizontal addload system, rock sample adjusting apparatus；
The horizontal addload system includes the electric rotating machine being arranged on loading frame right support beam, and is connect with electric rotating machine
Drive screw；Hobboing cutter is provided with by hobboing cutter fixed block on the drive screw and drives the servo motor of hobboing cutter rotation；
The rock sample adjusting apparatus includes the support plate being arranged in loading frame lower part, and support plate is driven by rotary oil cylinder revolves
Turn, the rock case of clamping rock sample is provided with above support plate, lift cylinder is provided between rock case and support plate；
It the described method comprises the following steps：
（1）Rock sample is chosen, rock sample is cut by the rectangle to match with rock case size by cutter device；Rock sample is put into rock case
It is interior and fixed with clamping cylinder so that the upper surface of rock sample is parallel with support plate；
（2）Model hobboing cutter is weighed and is installed in hobboing cutter rotary shaft；
（3）Support plate rotation is driven by rotary oil cylinder so that the right end of support plate moves up, and entire support plate is inclined to left end
Tiltedly and horizontal by certain angle；The angle [alpha] meets following formula：
sinα*L<R, and α>0, wherein R are hobboing cutter radius, and L is the distance at rock sample upper surface both ends；
When α meets above-mentioned formula, hobboing cutter could be met and contact inclined rock sample surface, and hobboing cutter always in moving process
The pile penetration for going deep into rock sample changes as hobboing cutter is mobile always, is unlikely to so that hobboing cutter can not contact rock sample or be more than hobboing cutter
Center and stop knife；
（4）Drive screw rotation is driven by electric rotating machine, hobboing cutter is adjusted to the left side of rock sample；
（5）The movement of rock case is driven by lift cylinder, to make rock sample upper surface peak be no more than rolling by mobile rock sample
Knife center, minimum point is not less than hobboing cutter outer rim bottom, thus, it is possible to which so that hobboing cutter can cut always rock in moving process
Sample, without generating idle running；
（6）Start servo motor driving hobboing cutter with certain rotational speed, starts electric rotating machine and electric rotating machine is set and move horizontally
Speed makes electric rotating machine driving hobboing cutter move right and cuts rock sample, and since rock sample is tilted to the left, hobboing cutter gos deep into passing through for rock sample
In-degree from left to right gradually increases, and after hobboing cutter leaves rock sample, suspends electric rotating machine；
（7）Reverse drive servo motor makes hobboing cutter reversely rotate, and is again started up electric rotating machine, and drive screw is reversely revolved
Turn, hobboing cutter is moved to the left cutting rock, and since rock sample is tilted to the left, the pile penetration that hobboing cutter gos deep into rock sample gradually subtracts from right to left
It is small, after hobboing cutter leaves rock sample, suspend electric rotating machine and servo motor；
（8）Repeat step（5）-（7）Three to five times；
（9）Hobboing cutter is unloaded, computation model hobboing cutter loses quality and loses quality, design abrasion classification with landwaste；
（10）It exchanges a kind of lower hobboing cutter for, while replacing repetition step（3）-（6）；According to the abrasion grades of different hobboing cutters choose with
The hobboing cutter type of specific rock sample adaptation.
2. New Kind of Hob according to claim 1 denudes experimental method, it is characterised in that：On the loading frame upper beam
It equipped with trapezoidal sliding rail, rolls and is provided with sliding bar above fixed block, be wherein trapezoidal slide block, trapezoidal slide block and ladder above sliding bar
The cooperation sliding of shape sliding rail.
3. New Kind of Hob according to claim 1 denudes experimental method, it is characterised in that：The left frame of the rock case and the right side
It is symmetrically arranged with clamping cylinder on frame, the output end of clamping cylinder is provided with fixed block, and fixed block is by clamping cylinder by rock
Sample is fixed in rock case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108072.6A CN108303337A (en) | 2018-02-02 | 2018-02-02 | A kind of New Kind of Hob abrasion experimental method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810108072.6A CN108303337A (en) | 2018-02-02 | 2018-02-02 | A kind of New Kind of Hob abrasion experimental method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108303337A true CN108303337A (en) | 2018-07-20 |
Family
ID=62864068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810108072.6A Pending CN108303337A (en) | 2018-02-02 | 2018-02-02 | A kind of New Kind of Hob abrasion experimental method |
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| CN (1) | CN108303337A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122370A (en) * | 2019-12-31 | 2020-05-08 | 中铁工程服务有限公司 | Test device capable of simulating eccentric load working condition of TBM cutter head |
| CN114397216A (en) * | 2022-01-22 | 2022-04-26 | 天地上海采掘装备科技有限公司 | Cutting abrasion test bed |
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| RU2047165C1 (en) * | 1992-01-21 | 1995-10-27 | Евгений Васильевич Лодус | Set for testing materials for friction |
| CN1818640A (en) * | 2006-03-03 | 2006-08-16 | 广州市盾建地下工程有限公司 | Cutter wear inspection during tunnelling process of tunnel tunneller |
| CN101299013A (en) * | 2008-06-23 | 2008-11-05 | 沈阳重型机械集团有限责任公司 | Tool bit rock breaking mechanism and abrasion tester |
| CN103692560A (en) * | 2013-12-25 | 2014-04-02 | 三峡大学 | Rock sample cutting device capable of producing different joint angle and different joint connectivity rates |
| CN103969141A (en) * | 2013-01-29 | 2014-08-06 | 中南大学 | A hard rock hobbing cutter rock breaking characteristic testing device |
| CN105181503A (en) * | 2015-10-10 | 2015-12-23 | 中铁隧道集团有限公司 | Hob composite abrasion experiment instrument |
| CN206020075U (en) * | 2016-06-24 | 2017-03-15 | 中国电建集团华东勘测设计研究院有限公司 | A kind of laboratory sampler suitable for weak sliver |
| CN106881488A (en) * | 2017-03-02 | 2017-06-23 | 苏州廖若机电科技有限公司 | A kind of stainless-steel pipe with inner spline groove fixes grooving mechanism |
-
2018
- 2018-02-02 CN CN201810108072.6A patent/CN108303337A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2047165C1 (en) * | 1992-01-21 | 1995-10-27 | Евгений Васильевич Лодус | Set for testing materials for friction |
| CN1818640A (en) * | 2006-03-03 | 2006-08-16 | 广州市盾建地下工程有限公司 | Cutter wear inspection during tunnelling process of tunnel tunneller |
| CN101299013A (en) * | 2008-06-23 | 2008-11-05 | 沈阳重型机械集团有限责任公司 | Tool bit rock breaking mechanism and abrasion tester |
| CN103969141A (en) * | 2013-01-29 | 2014-08-06 | 中南大学 | A hard rock hobbing cutter rock breaking characteristic testing device |
| CN103692560A (en) * | 2013-12-25 | 2014-04-02 | 三峡大学 | Rock sample cutting device capable of producing different joint angle and different joint connectivity rates |
| CN105181503A (en) * | 2015-10-10 | 2015-12-23 | 中铁隧道集团有限公司 | Hob composite abrasion experiment instrument |
| CN206020075U (en) * | 2016-06-24 | 2017-03-15 | 中国电建集团华东勘测设计研究院有限公司 | A kind of laboratory sampler suitable for weak sliver |
| CN106881488A (en) * | 2017-03-02 | 2017-06-23 | 苏州廖若机电科技有限公司 | A kind of stainless-steel pipe with inner spline groove fixes grooving mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122370A (en) * | 2019-12-31 | 2020-05-08 | 中铁工程服务有限公司 | Test device capable of simulating eccentric load working condition of TBM cutter head |
| CN114397216A (en) * | 2022-01-22 | 2022-04-26 | 天地上海采掘装备科技有限公司 | Cutting abrasion test bed |
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Application publication date: 20180720 |
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