CN203672739U - Testing device for cutting rock samples - Google Patents
Testing device for cutting rock samples Download PDFInfo
- Publication number
- CN203672739U CN203672739U CN201320860185.4U CN201320860185U CN203672739U CN 203672739 U CN203672739 U CN 203672739U CN 201320860185 U CN201320860185 U CN 201320860185U CN 203672739 U CN203672739 U CN 203672739U
- Authority
- CN
- China
- Prior art keywords
- rock sample
- cutting
- hydraulic cylinder
- cutting rock
- test unit
- 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.)
- Expired - Lifetime
Links
- 239000011435 rock Substances 0.000 title claims abstract description 81
- 238000005520 cutting process Methods 0.000 title claims abstract description 73
- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000005641 tunneling Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Abstract
The utility model discloses a testing device for cutting rock samples. A vertical hydraulic cylinder is arranged at the top of a frame body, a piston rod of the vertical hydraulic cylinder is arranged facing the bottom of the frame body and is connected with a cutting tool for cutting the rock samples; a revolution cutting rock sample case and a linear cutting rock sample case are arranged at the bottom of the frame body; the revolution cutting rock sample case is connected with a revolution support for driving the revolution rock sample case to rotate; a horizontal hydraulic cylinder used for driving the linear cutting rock sample case to generate horizontal displacement is connected to the linear cutting rock sample case. The testing device for cutting rock samples, provided by the utility model, has the advantages of simple and compact structure, small occupied space, and easiness in operation, and can carry out a rock cutting test in a revolution cutting mode and a linear cutting mode.
Description
Technical field
The utility model relates to a kind of test unit, relates in particular to a kind of test unit that cuts rock sample.
Background technology
Hobboing cutter is the main cutting tools for cutting of shield structure breaking hard rock, and its Cracking Mechanism is when leap percussive pressure crushed rocks and depress rear shearing and pulverize brokenly rock.While driving under different geologic conditions and boring parameter, stressing conditions and the wear out failure of cutter are different, due to the inefficacy of cutter, need to change cutter in tunneling process, but change cutter, not only workload is large but also dangerous.In addition, engineering practice shows, the time of the operations such as inspection, replacing and the maintenance of cutter accounts for 1/3rd of tunneling construction T.T., and the expense of cutter accounts for 1/3rd of tunneling construction expense, therefore be necessary to adopt the matching relationship of cutting ability, stress and broken rock required thrust and the moment of torsion of cutting test device to cutter to study, thereby reduce production time and production cost.
Hobboing cutter has linear incision and two kinds of cutting modes of revolution cutting, the experiment purpose of linear incision and revolution cutting and the difference of dealing with problems, therefore,, in prior art, conventionally adopt revolution cutting test device and linear incision test unit to study the performance of cutter.Wherein, revolution cutting test device mostly is small scaled model, and cutter rotary radius is little, can simulate the stressing conditions of the dissimilar cutter revolution cutting scheme of shield structure and cutterhead central hob; And linear incision test unit adopts and 17 inches of hobboing cutters of the actual same size of engineering carry out cutting test, experimental data more can reflect truth, for the shield structure of the large turning radius, the motion of periphery cutter is similar to linear movement, therefore needs to simulate with the larger linear incision test unit of linear velocity.But these test cutter sweeps of the prior art mostly are simple function, single mode of operation, utilizes a kind of testing table, conventionally cannot meet the test needs of cutter rock breaking mechanism.
Utility model content
The problem existing for prior art, the purpose of this utility model is to provide a kind of test unit that cuts rock sample, and it can realize revolution cutting and two kinds of mode of operations of linear incision.
The purpose of this utility model is achieved through the following technical solutions:
Cut a test unit for rock sample, the top of described support body is provided with vertical hydraulic cylinder, and the piston rod of described vertical hydraulic cylinder arranges towards the bottom of described support body, is connected with the cutter for cutting rock sample on the piston rod of described vertical hydraulic cylinder; The bottom of described support body is provided with revolution cutting rock sample case and linear incision rock sample case, on described revolution cutting rock sample case, is connected with the pivoting support for driving described revolution rock sample case to rotate; On described linear incision rock sample case, be connected with the horizontal hydraulic cylinder of the generation horizontal shift for driving described linear incision rock sample case.
Further, the end of the piston rod of described vertical hydraulic cylinder is provided with tool rest, and described cutter is fixed on described tool rest.
Further, the piston rod of described vertical hydraulic cylinder adopts ball pivot to be connected with tool rest.
Further, described support body is provided with guidepost in the both sides of described tool rest, and described tool rest is provided with orienting sleeve in the corresponding position of described guidepost, and described orienting sleeve is set on described guidepost.
Further, on described tool rest, be provided with the three-dimensional force transducer for monitoring cutter.
Further, the external toothing of described pivoting support is connected with revolution cutting rock sample case, and the inner ring of described pivoting support is connected with described support body.
Further, the external toothing of described pivoting support is by the gear shaft drive motor that is connected with a joggle.
Further, on described drive motor, be also connected with rotary speed torque sensor.
Further, the bottom of described support body is provided with two one slide rails, and the bottom of described linear incision rock sample case arranges slide block, offers the chute suitable with described slide rail on described slide block.
Further, on described vertical hydraulic cylinder and described horizontal hydraulic cylinder, be all connected with displacement transducer.
The test unit of the cutting rock sample that the utility model provides is simple and compact for structure, take up room little, and easily operation, this device can carry out Rock cutting test under revolution cutting and two kinds of different modes of linear incision, for the matching relationship of research cutter rock breaking mechanism and the broken rock required thrust of cutter and moment of torsion provides foundation.
Brief description of the drawings
Fig. 1 is the test unit schematic diagram of a kind of preferred cutting rock sample of the utility model;
Fig. 2 is the revolution cutting effect figure of the test unit of the cutting rock sample shown in Fig. 1;
Fig. 3 is the linear incision design sketch of the test unit of the cutting rock sample shown in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, a preferred embodiment of the present utility model is described in detail.Wherein identical parts represent with identical Reference numeral.It should be noted that, word 'fornt', 'back', " left side ", " right side ", "up" and "down" that use is described below refer to the direction in accompanying drawing, and word " interior " and " outward " refer to respectively the direction towards or away from specific features geometric center.
As shown in Figure 1, the utility model provides a kind of test unit that cuts rock sample, comprise support body 1, the top of described support body 1 is provided with vertical hydraulic cylinder 2, the piston rod of described vertical hydraulic cylinder 2 arranges towards the bottom of described support body 1, is connected with the cutter 3 for cutting rock sample on the piston rod of described vertical hydraulic cylinder 2; The bottom of described support body 1 is provided with revolution cutting rock sample case 4 and linear incision rock sample case 5, on described revolution cutting rock sample case 4, is connected with the pivoting support for driving described revolution rock sample case 4 to rotate; On described linear incision rock sample case 5, be connected with the horizontal hydraulic cylinder 7 of the generation horizontal shift for driving described linear incision rock sample case 5.When use, the power that this practicality can adopt motor for double-ended drive to realize revolution cutting and linear incision shares, and stretches motor for described pair and is connected with described pivoting support by reduction gear, by driving hydraulic power unit to drive described horizontal hydraulic cylinder 7.
As a kind of preferred version of the present utility model, the end of the piston rod of described vertical hydraulic cylinder 2 is provided with tool rest 8, and described cutter 3 is removably fixed on described tool rest 8, and more preferably, the piston rod of described vertical hydraulic cylinder 2 adopts ball pivot to be connected with tool rest 8.What those skilled in the art should understand that is, it is only a kind of preferred version of the present utility model that the piston rod of described vertical hydraulic cylinder 2 adopts ball pivot to be connected with tool rest 8, the utility model can also be selected the alternate manner that connects piston rod and tool rest that can be used in conventionally known to one of skill in the art, repeats no more herein.
In order stably to control the position of described tool rest 8 and cutter 3, described support body is preferably provided with guidepost 9 in the both sides of described tool rest 8, described tool rest 8 is provided with orienting sleeve 10 in the corresponding position of described guidepost 9, described orienting sleeve 10 is set on described guidepost 9, thereby make orienting sleeve 10 drive described tool rest 8 and cutter 3 to move up and down along the direction of described guidepost 10, the problem such as avoid cutter 3 to occur rocking or to depart from.
On the basis of above-described embodiment, the utility model is also preferably provided with the three-dimensional force transducer for monitoring cutter 3 on described tool rest 8, thereby in the process of revolution cutting and linear incision, described three-dimensional force transducer can be monitored vertical force, rolling power and the side force of cutter 3, thereby provides reference data for the cutting of concrete engineering.
As a kind of preferred version of the present utility model, the external toothing of the pivoting support of the present embodiment is connected with revolution cutting rock sample case 4, the inner ring of described pivoting support is connected with described support body 1, and the external toothing of described pivoting support is by the gear shaft drive motor 6 that is connected with a joggle.What those skilled in the art should understand that is, above-mentioned pivoting support is only a kind of preferred version of the present embodiment with the connected mode of revolution cutting rock sample case 4, support body 1 and motor 6, other set-up mode that the utility model can also adopt applicable drive revolution cutting rock sample case 4 known in those skilled in the art to rotate repeats no more herein.
The utility model preferably also connects rotary speed torque sensor on described drive motor 6, thereby know rotating speed and the moment of torsion in revolution cutting process of described revolution cutting rock sample case 4 by detecting the rotating speed of drive motor and moment of torsion, for concrete engineering cutting provides reference data.
As a kind of preferred version of the present utility model, the bottom of described support body 1 is provided with two one slide rails 11, the bottom of described linear incision rock sample case 5 arranges slide block, on described slide block, offer the chute suitable with described slide rail, described slide rail is connected with described chute is adaptive, in the time that described horizontal hydraulic cylinder 7 pulls described linear incision rock sample case 5 to move, described chute slides along the bearing of trend of described slide rail, thereby has improved the stability that described linear incision rock sample case 5 slides.
In order to monitor in real time distance of stretch out and draw back and the scope of described vertical hydraulic cylinder 2 and described horizontal hydraulic cylinder 7, the utility model is connection bit displacement sensor on described vertical hydraulic cylinder 2 and described horizontal hydraulic cylinder 7 preferably.Certainly, described displacement transducer is only the utility model for a kind of preferred version of distance of stretch out and draw back of the piston rod of described vertical hydraulic cylinder 2 and the piston rod of described horizontal hydraulic cylinder 7 is provided, those skilled in the art can be according to actual service condition, the mensuration mode of selecting other does not repeat herein.
Adopt above-mentioned test unit in the time that revolution is cut under cut mode, as shown in Figure 2, the hobboing cutter of two 8.5 inches of mounting cutter 3(on tool rest 8, or install many cutting knife).First with horizontal hydraulic cylinder 7, linear incision rock sample case 5 is pulled out beyond revolution cut coverage, ground sample is put into revolution cutting rock sample case 4; Drive vertical hydraulic cylinder 2 that tool rest 8 is declined, guarantee that cutter 3 has suitable pile penetration, then start drive motor 6, drive motor 6 drives pivoting support 17 to rotate by speed reduction unit and gear shaft, the situation of simulation shield cutter cutting rock mass, and obtain in real time pile penetration, cutting speed, the three-dimensional power of cutter 3 and drive thrust and the moment of torsion of cutter 3 broken rocks by three-dimensional force transducer, displacement transducer and the rotary speed torque sensor installed respectively on tool rest 8, vertical hydraulic cylinder 2, drive motor 6.Complete after cutting at one time, by regulating the installation site of cutter 3 on tool rest 8 to change the radius of clean-up of cutter 7, realize the object that regulates cutter spacing, by regulating the frequency of drive motor 6 to realize the object of adjusting rotary speed.
While adopting above-mentioned test unit to cut under linear cut mode, as shown in Figure 3, first revolution cutting rock sample case 4 is removed, mounting cutter on tool rest 8 (hobboing cutters of 17 inches), puts into linear incision ground case 5 by ground sample, drives vertical hydraulic cylinder 2 that tool rest 8 is declined, guarantee that cutter 3 has a suitable pile penetration, then drive horizontal hydraulic cylinder 7 to bounce back, produce horizontal feed speed, the state of the larger Tool in Cutting rock mass of radius is installed on simulation shield structure.Speed of feed can realize by the flow of the hydraulic valve on hydraulic circuit for regulating and hydraulic pump; The collection of data, the adjustment of cutter spacing are identical with aforementioned revolution cut mode.
In sum, this apparatus structure is simple, it is little to take up room, and can simulate the Rock cutting of shield cutter under revolution cutting and two kinds of different modes of linear incision and test; Adopt the working condition of revolution Cutting shield cutter, adopt the working condition of on linear incision simulation shield structure, the cutter that radius ratio is larger being installed; Not only consider the situation of pile penetration in cutter rock break-off process, cutting speed and suffered three-dimensional power, also considered the test of the matching relationship of the broken needed thrust of rock of cutter and moment of torsion; Whole test is intuitively accurate, for the matching relationship of research cutter rock breaking mechanism and the broken rock required thrust of cutter and moment of torsion provides foundation.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.
Claims (10)
1. one kind is cut the test unit of rock sample, it is characterized in that, comprise support body, the top of described support body is provided with vertical hydraulic cylinder, the piston rod of described vertical hydraulic cylinder arranges towards the bottom of described support body, is connected with the cutter for cutting rock sample on the piston rod of described vertical hydraulic cylinder; The bottom of described support body is provided with revolution cutting rock sample case and linear incision rock sample case, is connected with the pivoting support for driving described revolution cutting rock sample case to rotate on described revolution cutting rock sample case; On described linear incision rock sample case, be connected with for driving described linear incision rock sample case to produce the horizontal hydraulic cylinder of horizontal shift.
2. the test unit of cutting rock sample according to claim 1, is characterized in that, the end of the piston rod of described vertical hydraulic cylinder is provided with tool rest, and described cutter is fixed on described tool rest.
3. the test unit of cutting rock sample according to claim 2, is characterized in that, the piston rod of described vertical hydraulic cylinder adopts ball pivot to be connected with tool rest.
4. the test unit of cutting rock sample according to claim 2, it is characterized in that, described support body is provided with guidepost in the both sides of described tool rest, and described tool rest is provided with orienting sleeve in the corresponding position of described guidepost, and described orienting sleeve is set on described guidepost.
5. according to the test unit of the cutting rock sample described in claim 2-4 any one, it is characterized in that, on described tool rest, be provided with the three-dimensional force transducer for monitoring cutter.
6. the test unit of cutting rock sample according to claim 1, is characterized in that, the external toothing of described pivoting support is connected with revolution cutting rock sample case, and the inner ring of described pivoting support is connected with described support body.
7. the test unit of cutting rock sample according to claim 6, is characterized in that, the external toothing of described pivoting support is by the gear shaft drive motor that is connected with a joggle.
8. the test unit of cutting rock sample according to claim 7, is characterized in that, is also connected with rotary speed torque sensor on described drive motor.
9. the test unit of cutting rock sample according to claim 1, is characterized in that, the bottom of described support body is provided with two one slide rails, and the bottom of described linear incision rock sample case arranges slide block, offers the chute suitable with described slide rail on described slide block.
10. the test unit of cutting rock sample according to claim 1, is characterized in that, on described vertical hydraulic cylinder and described horizontal hydraulic cylinder, is all connected with displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860185.4U CN203672739U (en) | 2013-12-24 | 2013-12-24 | Testing device for cutting rock samples |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860185.4U CN203672739U (en) | 2013-12-24 | 2013-12-24 | Testing device for cutting rock samples |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672739U true CN203672739U (en) | 2014-06-25 |
Family
ID=50969021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320860185.4U Expired - Lifetime CN203672739U (en) | 2013-12-24 | 2013-12-24 | Testing device for cutting rock samples |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672739U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614265A (en) * | 2015-01-14 | 2015-05-13 | 同济大学 | Device for testing wear resistance of disc cutter of TBM (tunnel boring machine) and application |
| CN106925829A (en) * | 2017-05-08 | 2017-07-07 | 赵利雅 | Dirt formula cylindrical objects multi-angle cutter sweep is taken out in closing |
| CN107030899A (en) * | 2017-04-24 | 2017-08-11 | 河南理工大学 | Coal and rock test specimen different angle structural plane cutter device |
| CN107976378A (en) * | 2018-01-18 | 2018-05-01 | 中南大学 | One kind pick anchor synchronization all-in-one machine cutting part cutting ability test device and test method |
| CN108593321A (en) * | 2018-04-03 | 2018-09-28 | 上海隧道工程有限公司 | Water knife shield machine performance testing equipment |
| CN110005423A (en) * | 2019-04-18 | 2019-07-12 | 中铁隧道局集团有限公司 | A method of adjustment hobboing cutter rock machine synthesis experiment platform promotes mainly power cylinder installation site |
| CN110303606A (en) * | 2019-06-26 | 2019-10-08 | 中国地质大学（武汉） | A kind of portable protolith structural plane surface topography processing unit (plant) and its operating method |
| 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 |
| CN111091747A (en) * | 2019-12-31 | 2020-05-01 | 西南交通大学 | TBM hobbing cutter multifunctional test bed |
| CN111157389A (en) * | 2019-12-31 | 2020-05-15 | 西南交通大学 | TBM rock breaking test bed with linear/rotary dual modes |
| CN109443970B (en) * | 2018-08-23 | 2023-09-12 | 中国地质大学（北京） | Real-time testing system for cutting high-temperature rock under different temperature conditions |
-
2013
- 2013-12-24 CN CN201320860185.4U patent/CN203672739U/en not_active Expired - Lifetime
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614265B (en) * | 2015-01-14 | 2017-02-22 | 同济大学 | Device for testing wear resistance of disc cutter of TBM (tunnel boring machine) and application |
| CN104614265A (en) * | 2015-01-14 | 2015-05-13 | 同济大学 | Device for testing wear resistance of disc cutter of TBM (tunnel boring machine) and application |
| CN107030899A (en) * | 2017-04-24 | 2017-08-11 | 河南理工大学 | Coal and rock test specimen different angle structural plane cutter device |
| CN106925829A (en) * | 2017-05-08 | 2017-07-07 | 赵利雅 | Dirt formula cylindrical objects multi-angle cutter sweep is taken out in closing |
| CN107976378A (en) * | 2018-01-18 | 2018-05-01 | 中南大学 | One kind pick anchor synchronization all-in-one machine cutting part cutting ability test device and test method |
| CN108593321A (en) * | 2018-04-03 | 2018-09-28 | 上海隧道工程有限公司 | Water knife shield machine performance testing equipment |
| CN108593321B (en) * | 2018-04-03 | 2020-05-05 | 上海隧道工程有限公司 | Water jet shield constructs quick-witted performance test equipment |
| CN109443970B (en) * | 2018-08-23 | 2023-09-12 | 中国地质大学（北京） | Real-time testing system for cutting high-temperature rock under different temperature conditions |
| CN110005423A (en) * | 2019-04-18 | 2019-07-12 | 中铁隧道局集团有限公司 | A method of adjustment hobboing cutter rock machine synthesis experiment platform promotes mainly power cylinder installation site |
| CN110005423B (en) * | 2019-04-18 | 2020-11-17 | 中铁隧道局集团有限公司 | Method for adjusting installation position of main thrust oil cylinder of hob rock machine comprehensive experiment platform |
| CN110303606B (en) * | 2019-06-26 | 2020-08-07 | 中国地质大学（武汉） | Portable raw rock structural surface topography processing device and operation method thereof |
| CN110303606A (en) * | 2019-06-26 | 2019-10-08 | 中国地质大学（武汉） | A kind of portable protolith structural plane surface topography processing unit (plant) and its operating method |
| 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 |
| CN111157389A (en) * | 2019-12-31 | 2020-05-15 | 西南交通大学 | TBM rock breaking test bed with linear/rotary dual modes |
| CN111091747A (en) * | 2019-12-31 | 2020-05-01 | 西南交通大学 | TBM hobbing cutter multifunctional test bed |
| CN111091747B (en) * | 2019-12-31 | 2023-11-03 | 西南交通大学 | TBM hob multifunctional test bed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203672739U (en) | Testing device for cutting rock samples | |
| CN101446537B (en) | Adjustable multi-hob rock cutting fragmentation test means | |
| CN103969141B (en) | A kind of hard rock hob breaks rock characteristic test device | |
| CN102901685B (en) | Cutter friction abrasion testing machine for simulating shield construction conditions, testing cutter and testing method | |
| CN102445336B (en) | Multi-blade multi-angle rock breaking device for rock ripper | |
| CN202814694U (en) | Hob testing stand for shield tunneling machine and TBM | |
| CN101299013A (en) | Tool bit rock breaking mechanism and abrasion tester | |
| CN104062197B (en) | A kind of hard rock hob wearing character testing arrangement | |
| CN102788693A (en) | Shield and TBM (tunnel boring machine) hob test bed | |
| CN111157388B (en) | Test bed capable of simulating tool behaviors at each position of cutter head | |
| CN102841030A (en) | Test platform used in researching tunnel boring machine tool rock breaking mechanism | |
| CN105181503A (en) | Hob composite abrasion experiment instrument | |
| CN109612718A (en) | Hobboing cutter multi-source information state verification experimental bench under different confining pressures | |
| CN102359919A (en) | TBM rock breaking test apparatus | |
| CN101879477B (en) | Test device for excavating and stripping cobalt crust and hydrothermal sulfide in deep sea | |
| CN111289396A (en) | Device and method for carrying out wear test on shield tunneling machine cutter | |
| Gospodarczyk et al. | A new generation mining head with disc tool of complex trajectory | |
| CN203796166U (en) | Portable drilling rig | |
| CN107976378A (en) | One kind pick anchor synchronization all-in-one machine cutting part cutting ability test device and test method | |
| CN211787848U (en) | Test device capable of simulating eccentric load working condition of TBM cutter head | |
| CN103321649B (en) | Octagonal tunnel boring machine | |
| CN104949851A (en) | Cutting propulsion simulation test system for quasi-rectangular shielding | |
| CN111157389A (en) | TBM rock breaking test bed with linear/rotary dual modes | |
| CN106644735A (en) | Hobbing cutter static pressure rock breaking test apparatus capable of adjusting angle | |
| CN202956319U (en) | Tool friction wear testing machine in imitate shield construction state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140625 |