CN208089286U - Friction torque measuring device between a kind of mechanical implement and the soil body - Google Patents
Friction torque measuring device between a kind of mechanical implement and the soil body Download PDFInfo
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- CN208089286U CN208089286U CN201820534466.3U CN201820534466U CN208089286U CN 208089286 U CN208089286 U CN 208089286U CN 201820534466 U CN201820534466 U CN 201820534466U CN 208089286 U CN208089286 U CN 208089286U
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- dress
- soil body
- shaft
- friction torque
- turntable
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- 239000002689 soil Substances 0.000 title claims abstract description 72
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 15
- 230000006872 improvement Effects 0.000 abstract description 9
- 238000011156 evaluation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000005641 tunneling Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000009533 lab test Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model belongs to underground engineering construction field, and in particular to friction torque measuring device between a kind of mechanical implement and the soil body, including pedestal, reaction frame, actuating unit and test mechanism；The lower end of reaction frame is bolted on pedestal；Test mechanism includes the native case of dress, bearing plate, jack and turntable；The native case of dress is installed on pedestal；Jack is set on reaction frame, and bearing plate is installed on the lower end of jack；Turntable is set in the native case of dress, and can be rotated under the drive of actuating unit；Actuating unit includes adjustable speed motor, shaft coupling and shaft；Adjustable speed motor is set in pedestal；One end of shaft is sequentially connected by shaft coupling in the output end of adjustable speed motor；The other end of shaft is connected to by axis pin on turntable.The application is by controlling rotary speed and reading stabling current value, to obtain soil body friction torque, the friction torque performance of the soil body after evaluation improvement.
Description
Technical field
The utility model belongs to underground engineering construction field, and in particular to friction torque is surveyed between a kind of mechanical implement and the soil body
Device is measured, the performance measurement of soil body friction torque in soil improvement laboratory test is can be applied to.
Background technology
In the work progress of underground engineering, construction machinery utensil will produce rubbing action when interacting with the soil body, soil
Friction, stirring torque between body and equipment etc. can have larger shadow to the type selecting and construction efficiency of construction machinery or material
It rings.Such as shield machine is in the construction process, shield shell, cutterhead and soil output all can generate friction with the soil body, in geological conditions
It will appear situations such as cutter torque is excessive, and tool wear is serious in bad stratum (sand, pebble layer).It is just needed in construction
Accurate soil body friction torque is obtained, to carry out indoor soil improvement experiment and to set associated construction parameter.Below
By taking the measurement of friction torque between the soil body and earth pressure balanced shield, EPBS cutterhead as an example, the significance that soil body friction torque measures is discussed.
Earth pressure balanced shield, EPBS is to adjust pressure by controlling the mass rate of emission of control dregs in driving speed and pressure chamber
The pressure in cabin, to balance the soil water pressure of excavation face.In shield machine tunneling process, controlled by the driving speed of shield machine
The excavated volume of the soil body before shield processed, while the rotating speed for controlling spiral dumper carrys out the discharge capacity of control cabinet soil, when excavated volume and casting
When amount is consistent, shield machine could carry out phenomena such as normally construction is without backbreaking or owing to dig, and then influence stratum
Stability also ensures that the quality of construction.Therefore, through being cut into the soil body of pressure chamber in earth pressure shield tunneling machine work progress
It must satisfy Plastic Flow state, i.e., lower permeability, good mobility, smaller friction coefficient and torque.Native land body
Friction torque, which crosses senior general, to be led to earth pressure shield tunneling machine causing occurs molding, soil cabin occlusion and gush etc. three kinds in cabin soil in the construction process
The accident that construction can not be normally carried out.
Soil improvement technology refers to that additive is added in the dregs cut to improve the mechanical property of the soil body, is made
It reaches Plastic Flow state, and then solves the problems such as molding, the soil cabin that shield machine occurs in the construction process are occluded and gushed.
Therefore, the soil body after the digging dregs before not improveing either, or improvement is required for carrying out between the soil body and shield equipment etc.
Friction torque measurement.However, there are no unified generally acknowledged to be used between mechanical implement and the soil body for academic circles at present and engineering circles
The measuring device and method of friction torque.
Utility model content
Friction torque measuring device between a kind of mechanical implement of the utility model offer and the soil body, the application, which passes through, controls turntable
Rotating speed and stabling current value is read, to obtain soil body friction torque, the friction torque performance of the soil body after evaluation improvement, in turn
The additive formula of soil improvement can be optimized, improve construction of the shield machine in bad soil layer.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken is, rubs between a kind of mechanical implement and the soil body
Wipe torque-measuring apparatus, including pedestal, reaction frame, actuating unit and test mechanism；The lower end of reaction frame is bolted to
On pedestal；
Test mechanism includes the native case of dress, bearing plate, jack and turntable；The native case of dress is installed on pedestal；Jack is set to
On reaction frame, bearing plate is installed on the lower end of jack；Bearing plate corresponds to the top of the native case of dress, and can be in the drive of jack
The native case of lower edge dress is moved upwardly or downwardly；Turntable is set in the native case of dress, and can be rotated under the drive of actuating unit；
Actuating unit includes adjustable speed motor, shaft coupling and shaft；Adjustable speed motor is set in pedestal；One end of shaft is logical
Shaft coupling is crossed to be sequentially connected in the output end of adjustable speed motor；The other end of shaft is connected to by axis pin on turntable.
Further include ammeter as the improved technical solution of the utility model, ammeter accesses the circuit of adjustable speed motor
In, the electric current for monitoring adjustable speed motor.
As the improved technical solution of the utility model, further include bearing, pedestal top be equipped with shaft by hole, axis
It holds and is installed at hole, shaft is connected to turntable after passing through bearing.
As the improved technical solution of the utility model, the native case of the dress is prepared using stainless steel material.
As the improved technical solution of the utility model, fill native case bottom be equipped with for shaft by hole.
As the improved technical solution of the utility model, turntable is using shield board wheel or vertically hung scroll formula cutterhead.
Advantageous effect
Utility model device and method calculate to obtain the soil body before and after soil improvement for measuring soil body friction torque with this
Friction torque is conducive to construction；
The apparatus structure is exquisite, it is affected by environment it is small, result is reliable and stable, easy to operate, highly practical, can be relatively accurate
Ground measures the friction torque of the soil body before and after soil improvement, can provide reliable experiment for laboratory test personnel or field technician
As a result.
In addition, the application can record the situation of change of electric current in whipping process in real time, in order to which different additive is for soil
The measurement of the good front and back friction torque of structural reform.
To sum up, compared with the existing technology in measuring device, the application apparatus structure is simple, precision higher.
Description of the drawings
The structural schematic diagram of Fig. 1 the application measuring devices；
Actuating unit electric motor structure schematic diagram in Fig. 2 the application measuring devices；
Power drive mechanism can substitute the structural schematic diagram that turntable is vertically hung scroll formula cutterhead in Fig. 3 the application measuring devices；
Power drive mechanism can substitute the structural schematic diagram that turntable is board wheel in Fig. 4 the application measuring devices；
In figure, 10, test stand；11, reaction frame；12, jack；13, bearing plate；14, native case is filled；15, pedestal；16, it opens
It closes；17, ammeter；20, actuating unit；21, adjustable speed motor；22, shaft coupling；23, shaft；24, turntable.
Specific implementation mode
It is clearer for the purpose and technical solution that make the embodiment of the present application, below in conjunction with the embodiment of the present application to this Shen
Technical solution please is clearly and completely described.Obviously, described embodiment is a part of the embodiment of the application, and
The embodiment being not all of.Based on described embodiments herein, those of ordinary skill in the art are without creative labor
The every other embodiment obtained under the premise of dynamic, shall fall in the protection scope of this application.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific terminology) there is meaning identical with the general understanding of the those of ordinary skill in the application fields.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the meaning of too formal be explained.
The meaning of " connection " described herein can be directly connected to can also be to pass through between component between component
Other components are indirectly connected with.
As shown in Figs. 1-2, friction torque measuring device between a kind of mechanical implement and the soil body, including test stand 10 and engine
Structure 20；
Test stand 10 includes pedestal 15, reaction frame 11 and test mechanism；The lower end of reaction frame 11 is bolted to base
On seat 15；In the present embodiment, 15 high 20cm of pedestal, long 40cm, wide 40m, material are stainless steel.
Test mechanism includes the native case 14 of dress, bearing plate 13, jack 12 and turntable 24；Dress soil case 14 is installed on pedestal 15
On, native case 14 is filled in the present embodiment to be welded on pedestal 15；Jack 12 is set on reaction frame 11, and bearing plate 13 is installed on very heavy
The lower end on top 12；Bearing plate 13 corresponds to the top of dress soil case 14, and can fill native case 14 in the drive lower edge of jack 12 and carry out
It is moved upwardly or downwardly；Turntable 24 is set in dress soil case 14, and can be rotated under the drive of actuating unit 20；Dress 14 size of native case
For 200mm × 200mm × 100mm, the disk that the interior turntable 24 being connected with shaft 23 is radius 75mm, alternatively, such as Fig. 3-4 institutes
Show, turntable 24 is using shield board wheel or vertically hung scroll formula cutterhead；The dress soil case 14 and turntable 24 are all stainless steel
Material.
Actuating unit 20 includes adjustable speed motor 21, shaft coupling 22 and shaft 23；Adjustable speed motor 21 is set in pedestal 15；
One end of shaft 23 is sequentially connected by shaft coupling 22 in the output end of adjustable speed motor 21；The other end of shaft 23 passes through axis pin
It is connected on turntable 24；In order to facilitate the connection of shaft 23 and turntable 24, fill native case 14 bottom be equipped with for shaft 23 by
Hole；Adjustable speed motor 21 is controlled using switch 16；In order to reduce friction, further include bearing, pedestal 15 top be equipped with shaft
23 by hole, bearing is installed at hole, and shaft 23 is connected to turntable 24 after passing through bearing；After clicking switch 16, motor fortune
Make, the rotation of shaft 23 is driven to realize that turntable 24 rotates.
Further include ammeter 17, ammeter 17 accesses in the circuit of adjustable speed motor 21, for monitoring adjustable speed motor 21
Electric current.17 class of accuracy of ammeter is 0.5 grade.Motor maximum speed is 18-20 revs/min in the present embodiment.
The another object of the utility model is to provide a kind of survey of friction torque measuring device between mechanical implement and the soil body
Amount method, includes the following steps：
Step 1: setting speed：Power on, opens speed governing button to certain rotating speed, it is ensured that rotating speed n's is basic when starting to test
Value, after its slow-roll stabilization, recording ammeter 17 reads I1；
Step 2: dress sample：The dress soil soil sample to be measured in the native case 14 of dress, soil sample height is higher than turntable 243cm, and soil sample is smeared
It is flat, ensure the one-sided smooth that soil sample is contacted with jack 12；
Step 3: pressurization：Jack 12 is adjusted, soil sample to be measured is brought pressure to bear on, simulates soil pressure；
Step 4: reading：Power on, opens speed governing button to same rotating speed n, turntable 24 starts to rotate, and waits for that its rotating speed is steady
After fixed, ammeter 17 stablizes reading I to record at this time2。
Step 5: calculating：After filling soil sample in the native case of dress 14, rotating speed n when 24 slow-roll stabilization of turntable, ammeter 17 is stablized
Read I1、I2, under external circuits U voltage conditions, soil sample consumes power of agitatorIt is certain in rotating speed n
When, angular speedCalculate soil body friction torque
Specifically, in use, measuring device is first placed level, power supply is then opened, opens the tune of adjustable speed motor 21
Fast button is to certain rotating speed n, and after its slow-roll stabilization, recording ammeter 17 reads I1, close power supply.Then it is filled in dress soil case 14
Full soil sample to be measured, soil sample is smoothed out, and ensures the one-sided smooth that soil sample is contacted with jack 12, adjusting jack 12 and to soil to be measured
Sample applies pressure to simulate soil pressure.Then it is again started up power supply, opens speed governing button to same rotating speed n, 21 band of adjustable speed motor
Turn disk 24 makes its one-directional rotation, and until 24 stabilization of speed of turntable, while electric current reaches stable in circuit, reads ammeter at this time
17 stablize reading I2, when reading, should ensure that the vertical of sight and 17 pointer of ammeter and dial, for the voltage of external circuitry U
In the case of, soil sample consumes power of agitatorIn mono- timings of rotating speed n, angular speedThe soil body is calculated to rub
Wipe torqueEvery group of experiment makees 3~5 samples of the same race and averages.
Above-mentioned measuring device is not limited merely to measure the friction torque between the soil body and EPB shield tunneling equipment, above-mentioned specific reality
The mode of applying is also only the preferred embodiment of the utility model, is not intended to limit the scope of the present invention, as long as using this reality
With novel design principle, and non-creative work is carried out on this basis and the variation made, should all belong to this practicality newly
The protection domain of type.
Claims (6)
1. friction torque measuring device between a kind of mechanical implement and the soil body, which is characterized in that including pedestal, reaction frame, engine
Structure and test mechanism；The lower end of reaction frame is bolted on pedestal；
Test mechanism includes the native case of dress, bearing plate, jack and turntable；The native case of dress is installed on pedestal；Jack is set to counter-force
On frame, bearing plate is installed on the lower end of jack；Bearing plate corresponds to the top of the native case of dress, and can be in the drive lower edge of jack
The native case of dress is moved upwardly or downwardly；Turntable is set in the native case of dress, and can be rotated under the drive of actuating unit；
Actuating unit includes adjustable speed motor, shaft coupling and shaft；Adjustable speed motor is set in pedestal；One end of shaft passes through connection
Axis device is sequentially connected in the output end of adjustable speed motor；The other end of shaft is connected to by axis pin on turntable.
2. friction torque measuring device between a kind of mechanical implement according to claim 1 and the soil body, which is characterized in that also wrap
Ammeter is included, ammeter accesses in the circuit of adjustable speed motor, the electric current for monitoring adjustable speed motor.
3. friction torque measuring device between a kind of mechanical implement according to claim 1 and the soil body, which is characterized in that also wrap
Include bearing, the top of pedestal be equipped with shaft by hole, bearing is installed at hole, and shaft is connected to turntable after passing through bearing.
4. friction torque measuring device between a kind of mechanical implement according to claim 1 and the soil body, which is characterized in that described
The native case of dress is prepared using stainless steel material.
5. friction torque measuring device between a kind of mechanical implement according to claim 1 and the soil body, which is characterized in that dress soil
The bottom of case be equipped with for shaft by hole.
6. friction torque measuring device between a kind of mechanical implement according to claim 1 and the soil body, which is characterized in that turntable
Using shield board wheel or vertically hung scroll formula cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820534466.3U CN208089286U (en) | 2018-04-16 | 2018-04-16 | Friction torque measuring device between a kind of mechanical implement and the soil body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820534466.3U CN208089286U (en) | 2018-04-16 | 2018-04-16 | Friction torque measuring device between a kind of mechanical implement and the soil body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208089286U true CN208089286U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820534466.3U Expired - Fee Related CN208089286U (en) | 2018-04-16 | 2018-04-16 | Friction torque measuring device between a kind of mechanical implement and the soil body |
Country Status (1)
| Country | Link |
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| CN (1) | CN208089286U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682752A (en) * | 2018-12-29 | 2019-04-26 | 中铁五局集团有限公司 | For testing the experimental rig of dynamic lateral adhesion strength between shield cutter-soil body |
| CN109827688A (en) * | 2019-01-31 | 2019-05-31 | 武汉船用机械有限责任公司 | The measurement method of bearing support reaction |
-
2018
- 2018-04-16 CN CN201820534466.3U patent/CN208089286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682752A (en) * | 2018-12-29 | 2019-04-26 | 中铁五局集团有限公司 | For testing the experimental rig of dynamic lateral adhesion strength between shield cutter-soil body |
| CN109827688A (en) * | 2019-01-31 | 2019-05-31 | 武汉船用机械有限责任公司 | The measurement method of bearing support reaction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 |