CN108426793A - A kind of New Kind of Hob abrasion experimental provision - Google Patents
A kind of New Kind of Hob abrasion experimental provision Download PDFInfo
- Publication number
- CN108426793A CN108426793A CN201810107570.9A CN201810107570A CN108426793A CN 108426793 A CN108426793 A CN 108426793A CN 201810107570 A CN201810107570 A CN 201810107570A CN 108426793 A CN108426793 A CN 108426793A
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- Prior art keywords
- hobboing cutter
- rock sample
- support plate
- rock
- fixed block
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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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- Physics & Mathematics (AREA)
- 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)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of New Kind of Hob to denude experimental provision comprising loading frame, horizontal addload system, rock sample adjusting apparatus.Wherein rock sample adjusting apparatus includes support plate and rotary oil cylinder, support plate can be made to generate certain angle by rotary oil cylinder, so that rock sample upper surface is also horizontal by certain 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 setting of wherein angle [alpha] makes hobboing cutter contact rock sample always.The present invention realizes hobboing cutter during moving cutting along the rock mass surface with angle of inclination by simply designing, and pile penetration 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, adjustable angle is novel during specially a kind of prediction shield-tunneling construction
Hobboing cutter denudes experimental provision.
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
Vertical abrasion experimental provision has obtained the abrasion data more close to engineering practice.
Invention content
A kind of New Kind of Hob abrasion experimental provision comprising 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 electric rotating machine is solid by motor
Determine block to be fixed on right support beam, is provided with mounting hole above loading frame or so supporting beam, is pacified by bearing in mounting hole
Equipped with drive screw, electric rotating machine drives drive screw to rotate by splined shaft is connect with drive screw upper spline hole；
It is provided with hobboing cutter fixed block on the drive screw, threaded hole is provided in hobboing cutter fixed block, drive screw is revolved with hobboing cutter fixed block
Turn connection；Servo motor and hobboing cutter rotary shaft are provided with below hobboing cutter fixed block, hobboing cutter is arranged below hobboing cutter rotary shaft, wherein
Servo motor driving hobboing cutter rotates in hobboing cutter rotary shaft.
The rock sample adjusting apparatus includes support plate, and the left support beam lower part of loading frame is provided with hinge hole, support plate
Left end it is hinged by hinge hole and left support beam；Loading frame bottom end rail right end is provided with rotary oil cylinder, the work of rotary oil cylinder
Plug end connect with support plate and then realizes support plate rotation；Rock case is provided with by lift cylinder above support plate, in rock case
Rock sample is installed, rock sample passes through the distance between lift cylinder adjustment and hobboing cutter.
Further loading frame upper beam is equipped with trapezoidal sliding rail, rolls and is provided with sliding bar above fixed block, wherein sliding
It is trapezoidal slide block above lever, trapezoidal slide block is slided with the cooperation of trapezoidal sliding rail.
It is symmetrically arranged with clamping cylinder in the left frame and correct frame of further rock case, the output end of clamping cylinder is provided with
Rock sample is fixed in rock case by fixed block, fixed block by clamping cylinder, and the upper surface of rock sample is made to keep flat with support plate
Row.
The angle α of wherein support plate and horizontal direction meets formula：sinα*L<R, and α>0, wherein R are hobboing cutter radius, L
For the distance at rock sample upper surface both ends；The angle between support plate and horizontal direction is adjusted within the scope of the α for meeting above-mentioned formula.
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.
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 simply designing
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 be Fig. 1 in A-A to sectional view.
Specific implementation mode
A kind of New Kind of Hob provided by the invention denudes experimental provision comprising 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；
The inclined angle [alpha] meets following formula：
sinα*L<R, wherein R are hobboing cutter radius, and L is the distance at rock sample upper surface both ends.
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 (4)
1. a kind of New Kind of Hob denudes experimental provision, it is characterised in that：Including loading frame, horizontal addload system, rock sample adjustment
Device；
The horizontal addload system includes the electric rotating machine being arranged on loading frame right support beam, and electric rotating machine is solid by motor
Determine block to be fixed on right support beam, is provided with mounting hole above loading frame or so supporting beam, is pacified by bearing in mounting hole
Equipped with drive screw, electric rotating machine drives drive screw to rotate by splined shaft is connect with drive screw upper spline hole；
It is provided with hobboing cutter fixed block on the drive screw, threaded hole is provided in hobboing cutter fixed block, drive screw is revolved with hobboing cutter fixed block
Turn connection；Servo motor and hobboing cutter rotary shaft are provided with below hobboing cutter fixed block, hobboing cutter is arranged below hobboing cutter rotary shaft, wherein
Servo motor driving hobboing cutter rotates in hobboing cutter rotary shaft；
The rock sample adjusting apparatus includes support plate, and the left support beam lower part of loading frame is provided with hinge hole, a left side for support plate
End is hinged with left support beam by hinge hole；Loading frame bottom end rail right end is provided with rotary oil cylinder, the piston end of rotary oil cylinder
Portion connect with support plate and then realizes support plate rotation；Rock case is provided with by lift cylinder above support plate, is installed in rock case
There is rock sample, the upper surface of rock sample is parallel with support plate, and rock sample passes through the distance between lift cylinder adjustment and hobboing cutter.
2. New Kind of Hob according to claim 1 denudes experimental provision, 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 provision, 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.
4. the New Kind of Hob of adjustable angle according to claim 1 denudes experimental provision, it is characterised in that：The support plate
Meet formula with the angle α of horizontal direction：sinα*L<R, and α>0, wherein R are hobboing cutter radius, and L is rock sample upper surface both ends
Distance；The angle between support plate and horizontal direction is adjusted within the scope of the α for meeting above-mentioned formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107570.9A CN108426793A (en) | 2018-02-02 | 2018-02-02 | A kind of New Kind of Hob abrasion experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107570.9A CN108426793A (en) | 2018-02-02 | 2018-02-02 | A kind of New Kind of Hob abrasion experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108426793A true CN108426793A (en) | 2018-08-21 |
Family
ID=63156398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810107570.9A Pending CN108426793A (en) | 2018-02-02 | 2018-02-02 | A kind of New Kind of Hob abrasion experimental provision |
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| CN (1) | CN108426793A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142122A (en) * | 2018-10-16 | 2019-01-04 | 吴建英 | It is a kind of for testing the experimental rig and its application method of brake block polishing machine |
| CN109238835A (en) * | 2018-11-24 | 2019-01-18 | 安徽省蚌埠华益导电膜玻璃有限公司 | A kind of glass substrate abrasion resistance testing device convenient for adjusting |
| CN110333159A (en) * | 2019-07-12 | 2019-10-15 | 中铁隧道局集团有限公司 | A kind of hobboing cutter rock machine synthesis experiment platform |
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| RU2047165C1 (en) * | 1992-01-21 | 1995-10-27 | Евгений Васильевич Лодус | Set for testing materials for friction |
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| 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 |
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2018
- 2018-02-02 CN CN201810107570.9A patent/CN108426793A/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 |
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| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109142122A (en) * | 2018-10-16 | 2019-01-04 | 吴建英 | It is a kind of for testing the experimental rig and its application method of brake block polishing machine |
| CN109238835A (en) * | 2018-11-24 | 2019-01-18 | 安徽省蚌埠华益导电膜玻璃有限公司 | A kind of glass substrate abrasion resistance testing device convenient for adjusting |
| CN110333159A (en) * | 2019-07-12 | 2019-10-15 | 中铁隧道局集团有限公司 | A kind of hobboing cutter rock machine synthesis experiment platform |
| CN110333159B (en) * | 2019-07-12 | 2020-05-26 | 中铁隧道局集团有限公司 | Hob rock machine comprehensive experiment platform |
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Application publication date: 20180821 |