CN207908291U - Measure the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion - Google Patents
Measure the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion Download PDFInfo
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- CN207908291U CN207908291U CN201721877374.7U CN201721877374U CN207908291U CN 207908291 U CN207908291 U CN 207908291U CN 201721877374 U CN201721877374 U CN 201721877374U CN 207908291 U CN207908291 U CN 207908291U
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Abstract
The utility model is related to a kind of measurement Three Degree Of Freedom hobboing cutter broken rock and the experimental provisions of abrasion.It aims to solve the problem that hobboing cutter broken rock in the prior art and wear test measurement accuracy are low, is especially difficult to efficiently carry out tool wear experiment problem.The utility model includes the pedestal for installing rock sample and the corresponding hobboing cutter being installed on above the rock sample, the hobboing cutter is installed on the girff of workbench, transverse moving mechanism, longitudinal moving mechanism and the vertically movable mechanism for driving hobboing cutter to be moved along 3 coordinate directions are installed, the corresponding position of experimental rig is also equipped with infrared temperature sensor, angular transducer and controller on the workbench.Advantage is：The experimental provision has three degree of freedom; catenary motion simulates cutting-in; horizontal and vertical movement can fitting a straight line track or arc track; hobboing cutter can be simulated for a long time to move and carry out relevant experimental data measurement; hobboing cutter broken rock or the situation of three axis force, hobboing cutter temperature, hobboing cutter slip in wear process under dry state or specific lubricant medium can be obtained, judges cooling, the antifriction effect of different lubricant mediums.
Description
Technical field
The utility model is related to the measuring device field of constructing tunnel equipment, especially a kind of measurement Three Degree Of Freedom hobboing cutter is broken
Rock and the experimental provision of abrasion.
Background technology
Shield and TBM（Complete-section tunnel boring machine）As the important equipment of mechanization of tunnelling, it is widely used in handing over
In logical, the energy, water conservancy, defence engineering.Tool of the disk cutter as broken rock, working environment is severe, load working condition is complicated, and
And it is huge on project influence to replace cutter expense and time, it would be highly desirable to carry out in terms of rock breaking mechanism and abrasion mechanism more deep
Research.
By to the retrieval of domestic and international pertinent literature and data discovery, at present lot of domestic and international mechanism to broken rock feature and
Abrasion mechanism has carried out a series of research, and research is substantially based on theory analysis, data simulation, experiment and field data and returns
These aspects, and experimental study occupies significant proportion.The country, with University Of Tianjin, Central South University, Xi'an Communications University and in
Iron tunnel group of office etc. has all carried out relevant research.It is used for tunnel piercing machine knife with the tunnels Zhong Tie group CN 102841030A
Has a kind of hard rock hob wearing character test dress of test platform, Central South University CN 104062197A of rock breaking mechanism mode research
It sets and simulates broken rock or abrasion, China Railway Tunnel Group Co CN according to shield TBM real work principles setting slewing equipment
105181503 A（The compound abrasion experiment instrument of hobboing cutter）It is tested using shrinkage scale cun hobboing cutter, which can only carry out rock mass
Straight cuts wear test needs to manually adjust sillar position.In particular, it is highly difficult using revolution experimental bench simulation hob abrasion,
Research based on theory of similarity progress hobboing cutter rock breaking mechanism or abrasion is a direction of hobboing cutter research, needs an energy for a long time
The experimental provision of broken rock.
In summary, it is had the disadvantage that in technology at this stage：1. measure gathered data it is single, weighting take hobboing cutter by
Force parameter usually ignores the measurement of the opposite sliding of hobboing cutter temperature, hobboing cutter and rock；2. during abrasion research, mostly using greatly
Dry state frictional experiment lacks research to the broken rock under different medium, abrasion；3. using the hob abrasion testing stand of shrinkage scale cun
Straight cuts can be carried out, and need to frequently replace rock sample position, inefficiency.
Invention content
The purpose of this utility model is exactly to solve to measure Three Degree Of Freedom hobboing cutter broken rock and the reality of abrasion in the prior art
Experiment device -- the problem of.
The concrete scheme of the utility model is：
A kind of experimental provision measuring Three Degree Of Freedom hobboing cutter broken rock and abrasion is designed, includes the pedestal and correspondence of installation rock sample
The hobboing cutter being installed on above the rock sample, the hobboing cutter are installed on the girff of workbench, and drive is equipped on the workbench
Transverse moving mechanism, longitudinal moving mechanism and the vertically movable mechanism that girff is moved along 3 coordinate directions respectively, the workbench
On be also equipped with the Computerized digital control system for controlling the transverse moving mechanism, longitudinal moving mechanism and vertically movable mechanism；Institute
It states and is also equipped with infrared temperature sensor on girff, angular transducer is also equipped on the hobboing cutter.
It is also equipped with landwaste cleaning head on the workbench, along the outer rim of the girff.
The pedestal, which is equipped with fixed rock sample, fixture, and landwaste collecting box is fixed in the peripheral bolts of the fixture.
Landwaste cleaning head arranges that the landwaste cleaning head is connected with the motor for driving its rotation, described along hobboing cutter both sides
Landwaste cleans tail end and is made of polyurethane cutter head.
The fluid injection mouth of connecting fluid is installed on the girff, aperture is installed adjustable on the fluid injection mouth
Formula valve.
The longitudinal moving mechanism includes the longitudinal workbench being slidably mounted on workbench, the longitudinal direction workbench and institute
It states and is equipped with motor-driven longitudinal ball screw assembly, between workbench；The transverse moving mechanism includes being slidably mounted on the longitudinal direction
Horizontal work level on workbench is equipped with motor-driven lateral ball wire between the horizontal work level and longitudinal workbench
Thick stick pair；The structure of the vertically movable mechanism includes the hydraulic cylinder being mounted on horizontal work level, the piston end of the hydraulic cylinder
Connect the girff.
Angular transducer is housed on hobboing cutter cutter shaft, angle information can be transmitted to Computerized digital control system 14, is post-processed
The practical rolling distance of hobboing cutter is obtained after calculating, compared with setting rolling distance, calculates slip.
The axis of hobboing cutter is parallel with horizontal plane.
A kind of hobboing cutter slip and sliding distance measurement method use above-mentioned measurement Three Degree Of Freedom hobboing cutter broken rock and abrasion
Experimental provision includes the following steps：
（1）It sets and calculates instant rate：According in the track of 14 setting device of Computerized digital control system（Straight path or
Arc track）, fixed cutting-in is set, Computerized digital control system 14 calculates the route of track, and computer can calculate transverse direction
The rate of workbench and longitudinal workbench resultant motion, and can show instant rate V.
（2）Calculate the practical rate rolled of hobboing cutter：Angular transducer on cutter shaft can perceive angle, pass through angle
To the derivation of time t, angular speed can be known, （For hobboing cutter radius）For the practical rate rolled of hobboing cutter.
（3）Judge instant slippage：Instant slip=, instant slip is 0, illustrates that hobboing cutter is pure rolling；Slippage
Rate ＞ 0 illustrates hobboing cutter roll and slide.
（4）Calculate sliding distance：TimeTo the timeInterior hobboing cutter（4）With scar sliding distance,
Sliding distanceAs a reference of abrasion analysis,。
（5）Calculate slip：TimeTo the timeInterior hobboing cutter theory rolling distance, the period slip
For。
The beneficial effects of the utility model are：
There is the experimental provision three degree of freedom, catenary motion to simulate cutting-in, and horizontal and vertical movement can fitting a straight line rail
Mark or arc track can simulate hobboing cutter and move and carry out relevant experimental data measurement, can simulate dry state or specific for a long time
Hobboing cutter broken rock or the situation of three axis force, hobboing cutter temperature, hobboing cutter slip in wear process, judge different lubrications under lubricant medium
The cooling of medium, antifriction effect.
It is applicant's understanding that by above technical scheme, it can accomplish each function opposite independent, it is simple in structure, it does not need
Revolving member, easy to manufacture.Hobboing cutter broken rock and abrasion can be simulated, it is also an option that being tested under dry state or lubricating status, is removed
Outside conventional three axis force experimental data, increases infrared sensor and measure hobboing cutter course of work state of temperature for abrasion research
In slip also measured.It only needs one piece of rock sample of installation that can be tested for a long time in experimentation, carries out
Arc track is cut, and need not adjust knife spacing, extremely convenient.The utility model is suitable for shield and TBM hob broken rock and mill
Loss measurement, the adaptability of evaluation hobboing cutter and lithostratigraphy, the spy that fast, result prepares with speed of experiment in terms of especially suitable abrasion
Point.
Description of the drawings
Fig. 1 is the front view of the utility model structure；
Fig. 2 is the vertical view of the utility model structure；
Fig. 3 is hobboing cutter trajectory diagram under the utility model straight cuts state；
Fig. 4 is hobboing cutter trajectory diagram under the utility model circular arc cut state；
The names of the parts in figure：1. pedestal；2. collecting box；3. rock sample；4. hobboing cutter；5. angular transducer；6. infrared temperature
Sensor；7. landwaste cleaning head；8. longitudinal rail；9. connecting flange；10. hydraulic cylinder；11. triaxial force sensor；12. girff；
13. jet port；14. Computerized digital control system；15. horizontal work level；16. servo longitudinal motor；17. longitudinal ball screw assembly,；
18. longitudinal workbench；19. displacement sensor one；20. lateral ball screw assembly,；21. displacement sensor two；22. lateral servo electricity
Machine.
Specific implementation mode
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
A kind of experimental provision measuring Three Degree Of Freedom hobboing cutter broken rock and abrasion referring to Fig. 1 to Fig. 4, including installs rock sample 3
Pedestal 1 and the corresponding hobboing cutter 4 for being installed on 3 top of rock sample, hobboing cutter 4 are installed on the girff 12 of workbench, are equipped on workbench
Transverse moving mechanism, longitudinal moving mechanism and the vertically movable mechanism for driving girff 12 to be moved respectively along 3 coordinate directions, work
The Computerized digital control system of control transverse moving mechanism, longitudinal moving mechanism and vertically movable mechanism is also equipped on platform；Girff
It is also equipped with infrared temperature sensor 6 on 12, angular transducer 5 is also equipped on hobboing cutter 4.Pass through connection method between hobboing cutter and girff
Orchid connection.
It is also equipped with landwaste cleaning head 7 on workbench, along the outer rim of girff 12.
Pedestal 1, which is equipped with fixed rock sample 3, fixture, and landwaste collecting box 2 is fixed in the peripheral bolts of fixture.
Landwaste cleaning head 7 arranges that landwaste cleaning head 7 is connected with the motor for driving its rotation along 4 both sides of hobboing cutter, and landwaste is clear
First 7 tail end is swept to be made of polyurethane cutter head.
The fluid injection mouth of connecting fluid is installed on girff 12, aperture adjustable valve is installed on fluid injection mouth
Door.
Longitudinal moving mechanism includes the longitudinal workbench 18 being slidably mounted on workbench, longitudinal workbench 18 and workbench
Between be equipped with motor-driven longitudinal ball screw assembly, 17；Transverse moving mechanism includes the cross being slidably mounted on longitudinal workbench 18
To workbench 15, motor-driven lateral ball screw assembly, is equipped between horizontal work level 15 and longitudinal workbench 18；It is vertically movable
The structure of mechanism includes the hydraulic cylinder 10 being mounted on horizontal work level 15, and the piston end of hydraulic cylinder 10 connects girff 12.
The axis of hobboing cutter 4 is parallel with horizontal plane, during the work time, drives it in rock by above-mentioned three-shaft linkage mobile mechanism
It is rolled on sample, simulates practical work process, further measure and assess using each measurement sensing equipment.Also pacify on girff
Equipped with triaxial force sensor, triaxial force sensor 11, a sensor that three direction force can be measured.
A kind of hobboing cutter slip and sliding distance measurement method that the present embodiment is related to, use above-mentioned measurement Three Degree Of Freedom to roll
Knife broken rock and the experimental provision of abrasion, include the following steps：
（1）It sets and calculates instant rate：According in the track of 14 setting device of Computerized digital control system（Straight path or
Arc track）, fixed cutting-in is set, Computerized digital control system 14 calculates the route of track, and computer can calculate transverse direction
The rate of workbench 15 and 18 resultant motion of longitudinal workbench, and can show instant rate V.
（2）Calculate hobboing cutter（4）The rate actually rolled：Angular transducer 5 on cutter shaft can perceive angle, pass through
AngleTo the derivation of time t, angular speed can be known, （For hobboing cutter radius）The rate actually rolled for hobboing cutter 4.
（3）Judge instant slippage：Instant slip=, instant slip is 0, illustrates that hobboing cutter is pure rolling；Slippage
Rate ＞ 0, illustrates hobboing cutter（4）Roll and slide.
（4）Calculate sliding distance：TimeTo the timeInterior hobboing cutter（4）With scar sliding distance,
Sliding distanceAs a reference of abrasion analysis,。
（5）Calculate slip：TimeTo the timeInterior hobboing cutter theory rolling distance, the period slip
For。
In the specific course of work, by taking straight path wear test as an example：
Computer installation hobboing cutter track is selected as straight line, and horizontal work level moves, and longitudinal workbench is motionless（It has cut together
Behind track, horizontal work level stops, vertical movable workbench to the next position, and horizontal work level moves again at this time, is repeated in）.If
Determine transverse shifting speed 15mm/s, tool radius 216mm.Computer can show the speed of horizontal work level constantly, can recognize
For for 15mm/s.
The corner variation of hobboing cutter is acquired by angular transducer.
| Time（s） | 1 | 2 | 3 | 4 | 5 | 6 |
| Corner (rad) | 0.05 | 0.10 | 0.145 | 0.190 | 0.24 | 0.30 |
The actual speed of hobboing cutter is calculated, and calculates slip.
Calculate the sliding distance of this time
1-6s sliding distance summations：=1×（15-10.2）+1×（15-9.72）+1×（15-
9.72）+1×（15-10.8）+1×（15-10.8）=23.76
The average slip of this time。
There are displacement sensor 1, displacement sensor 2 21 in the end of guide rail, while hydraulic cylinder 10 carries displacement sensor.
Displacement sensor is stay-supported fiber bragg grating sensor or LVDT displacement sensors.Know that hobboing cutter 4 is horizontal by displacement sensor
To, longitudinal and vertical location information closed-loop control is realized for Computerized digital control system 14.
Computerized digital control system 14 controls hydraulic cylinder 10, servo longitudinal motor 16,22 position of lateral servo motor,
And then hobboing cutter 4 can be moved according to the rule of setting, while the information that can be acquired to sensor is handled and is stored.
When specifically used, 10 uplink of hydraulic cylinder is raised by hobboing cutter 4 by Computerized digital control system 14 first and by hobboing cutter 4
It is moved to one jiao of experimental provision.Rock sample 3 is mounted on pedestal 1 and fixed.Then operation Computerized digital control system 14, using point
Dynamic control model, is moved to suitable position, and at a slow speed contact hobboing cutter with scar by hobboing cutter, then as reference position, if
Determine the cutting-in of hobboing cutter, the track of hobboing cutter（Straight path, arc track）, arc radius is set if it is arc track, is set simultaneously
Surely the linear velocity rolled, the spacing between twice track, the parameters such as road number of rolling.Need the experiment being lubricated, injection profit
Synovia body adjusts jet port flow.Then, start to test, the sensor meeting automatic collection of arrangement simultaneously records data.For abrasion
Experiment can carry out 4 mass measurement of hobboing cutter, the quality of the record abrasion of hobboing cutter 4, cutter ring radius after carrying out the wear test of a distance
The parameters such as variation be used for subsequent analysis.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it still can be with technical scheme described in the above embodiments is modified, or to which part technical characteristic
Carry out equivalent replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of experimental provision measuring Three Degree Of Freedom hobboing cutter broken rock and abrasion, it is characterised in that：Including installing rock sample（3）Base
Seat（1）It is installed on the rock sample with correspondence（3）The hobboing cutter of top（4）, the hobboing cutter（4）It is installed on the girff of workbench（12）
On, moving knife case is provided on the workbench（12）The transverse moving mechanism that moves respectively along 3 coordinate directions, longitudinal movement
Mechanism and vertically movable mechanism are also equipped with the control transverse moving mechanism, longitudinal moving mechanism and perpendicular on the workbench
To the Computerized digital control system of mobile mechanism；The girff（12）On be also equipped with infrared temperature sensor（6）, the hobboing cutter
（4）On be also equipped with angular transducer（5）.
2. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as described in claim 1, it is characterised in that：The work
Make on platform, along the girff（12）Outer rim be also equipped with landwaste cleaning head（7）.
3. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as described in claim 1, it is characterised in that：The base
Seat（1）, pedestal（1）It is equipped with fixed rock sample（3）Fixture, be fixed with landwaste collecting box in the peripheral bolts of the fixture（2）.
4. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as described in claim 1, it is characterised in that：Landwaste is clear
Sweep head（7）, landwaste cleaning head（7）Along hobboing cutter（4）Both sides arrange, the landwaste cleaning head（7）It is connected with and drives its rotation
Motor, the landwaste cleaning head（7）Tail end is made of polyurethane cutter head.
5. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as claimed in claim 4, it is characterised in that：The knife
Case（12）On the fluid injection mouth of connecting fluid is installed, the adjustable valve of aperture is installed on the fluid injection mouth.
6. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as described in claim 1, it is characterised in that：It is described vertical
Include the longitudinal workbench being slidably mounted on workbench to mobile mechanism（18）, the longitudinal direction workbench（18）With the work
Motor-driven longitudinal ball screw assembly, is equipped between platform（17）；The transverse moving mechanism includes being slidably mounted on longitudinal work
Make platform（18）On horizontal work level（15）, the horizontal work level（15）With longitudinal workbench（18）Between be equipped with motor band
Dynamic lateral ball screw assembly,；The structure of the vertically movable mechanism includes being mounted on horizontal work level（15）On hydraulic cylinder
（10）, the hydraulic cylinder（10）Piston end connect the girff（12）.
7. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as described in claim 1, it is characterised in that：Hobboing cutter
（4）Axis it is parallel with horizontal plane.
8. measuring the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion as claimed in claim 6, it is characterised in that：Described
Longitudinal ball screw assembly,（17）It is equipped with displacement sensor with the respective guide rail end of the lateral ball screw assembly,.
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| CN201721877374.7U CN207908291U (en) | 2017-12-28 | 2017-12-28 | Measure the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877374.7U CN207908291U (en) | 2017-12-28 | 2017-12-28 | Measure the experimental provision of Three Degree Of Freedom hobboing cutter broken rock and abrasion |
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| CN207908291U true CN207908291U (en) | 2018-09-25 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941644A (en) * | 2017-12-28 | 2018-04-20 | 中铁隧道局集团有限公司 | Measure the experimental provision and supporting hobboing cutter slip and sliding distance measuring method of Three Degree Of Freedom hobboing cutter broken rock and abrasion |
| CN109489886A (en) * | 2018-11-07 | 2019-03-19 | 华中农业大学 | Rotor three axis force measuring device and measuring method for rotary tillage soil slot test stand |
| 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 |
| CN114636544A (en) * | 2020-12-16 | 2022-06-17 | 中国石油大学(华东) | Laser rock breaking comprehensive test bed |
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2017
- 2017-12-28 CN CN201721877374.7U patent/CN207908291U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941644A (en) * | 2017-12-28 | 2018-04-20 | 中铁隧道局集团有限公司 | Measure the experimental provision and supporting hobboing cutter slip and sliding distance measuring method of Three Degree Of Freedom hobboing cutter broken rock and abrasion |
| CN107941644B (en) * | 2017-12-28 | 2023-06-20 | 中铁隧道局集团有限公司 | Experimental device for measuring rock breaking and abrasion of three-degree-of-freedom hob and matched hob sliding difference rate and sliding distance measuring method |
| CN109489886A (en) * | 2018-11-07 | 2019-03-19 | 华中农业大学 | Rotor three axis force measuring device and measuring method for rotary tillage soil slot test stand |
| CN109489886B (en) * | 2018-11-07 | 2020-07-31 | 华中农业大学 | Cutter roller three-directional force measuring device and method for rotary tillage soil box test bed |
| 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 |
| CN114636544A (en) * | 2020-12-16 | 2022-06-17 | 中国石油大学(华东) | Laser rock breaking comprehensive test bed |
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