CN206270178U - A kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type - Google Patents
A kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type Download PDFInfo
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- CN206270178U CN206270178U CN201621231020.0U CN201621231020U CN206270178U CN 206270178 U CN206270178 U CN 206270178U CN 201621231020 U CN201621231020 U CN 201621231020U CN 206270178 U CN206270178 U CN 206270178U
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Abstract
The utility model belongs to rock mechanics equipment technical field, discloses a kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type, including：Base, sleeve, push-down head, seaming chuck, piston, the seat of honour, top cover, connecting rod, torsion device composition, on the premise of many stress path rock hollow cylinder torsional shear instrument of torque feedback type of the present utility model solve the single problem of rock indoor experimental rig stress path, it is ensured that the precision and reliability of terminal output torque.
Description
Technical field
The utility model is related to rock mechanics equipment technical field, more particularly to a kind of many stress roads of torque feedback type
Footpath rock hollow cylinder torsional shear instrument.
Background technology
Stress state during engineering rock mass digging in-situ inside rock mass is extremely complex, shows as：Principal axis of stress direction
In the case of principal stress size variation, principal stress size are constant in the case of constant the principal axis of stress rotation, principal axis of stress direction rotate and
Principal stress size variation.Consider from macroscopic perspective, the change of above-mentioned stress state can cause rock mass to produce plastic deformation, elasticity ginseng
Number and intensive parameter change；Consider there is microfissure generation, insertion and extension inside rock mass from microcosmic angle.Therefore, carry out
Laboratory test simultaneously studies intensity, deformation and failure form that complex stress acts on lower rock, and this is opened for recognizing and administering rock mass
The engineering project disaster for digging disturbance induction is significant.
At present, the rock indoor experimental rig that can simulate stress path mainly has uniaxial compression instrument, mechanical property
Instrument, direct shear apparatus, true triaxial compressometer etc..Uniaxial compression instrument can realize that rock breaks in the compression that a principal stress action direction is loaded
It is bad, rock uniaxiality strength can be determined, it is impossible to realize other stress paths；Mechanical property instrument can realize that rock is enclosed having
The compression failure of bias is loaded in the case of pressure, it is impossible to realize three stress paths of principal stress action condition of different sizes；Directly
Cutting instrument can realize failure by shear of the rock in given shear surface, but shearing force outbound course and failure mechanics not on the same plane
On, it is impossible to truly reflect the failure by shear of rock；True triaxial compressometer can realize rock in three principal stresses of different sizes
The lower compression failure of effect, but influenced each other through being commonly present rigid plate of pressurizeing, end-face friction the problems such as, and can not realize advocating
The stress path of axle rotation.
According to the loading characteristic of hollow cylinder, the hollow cylinder torsional suitable for soil sample has been developed in Geotechnical Engineering field
Cut instrument.But, soil is two kinds of different engineering materials from rock, and the existing hollow cylinder torsional shear instrument for acting on soil sample is not applied to
In rock material, it is mainly shown as：1) soil sample cohesion is relatively low, and the cutting that available conventional tool carries out arbitrary shape is reinvented.
Therefore, manufacturing terminal face has the soil sample of annular distribution groove more convenient, it is easy to accomplish the moment of torsion of loading end face is passed
Pass.But,
The cohesion of rock is higher, it is impossible to which rock sample is reinvented in making, and processing end face has the rock sample of annular distribution groove more
It is difficult.Accordingly, it would be desirable to realize the applying of rock sample moment of torsion using other method.2) for relative rock, the intensity of soil is minimum, therefore
The exportable external force of hollow cylinder torsional shear instrument suitable for soil sample is smaller, and commonly uses the loading that hydraulic pressure realizes confined pressure, and rock sample
Confined pressure loading is often realized using oil pressure.On the other hand, stress level needed for the rock failure mechanism of rock is higher, which dictates that suitable for rock examination
The testing equipment tested must have stress ability to bear higher.3) relatively for soil, the deformation of rock is minimum, need to be using difference
In the deformation measuring device and method of the hollow cylinder torsional shear instrument of soil sample.4) the existing hollow cylinder torsional shear instrument suitable for soil sample
Axially loaded there are problems that interactional, such as the axially loaded friction effect for causing with moment of torsion loading structure.But due to
The external force level for putting on soil sample is relatively small, it is this influence each other it is negligible for soil sample.When the destruction of rock is necessary
When applying higher stress level, the loading of axial force can produce the frictional force of larger obstruction twist motion, this to influence each other
More protruded for rock.
Importantly, torque output passes to structure by machinery being finally applied on sample, it will usually due between structure
The factor loss part such as friction gap so that the moment of torsion that terminal sample is subject to does not reach the value of test requirements document, has a strong impact on reality
Test precision and reliability.
In sum, cannot realize that principal axis of stress rotation etc. is complicated in the existing rock indoor experimental rig of solution to answer
Power path, test function is more single and hollow cylinder torsional shear instrument of suitable for soil sample cannot be applied to rock test, and
Due to rock and the difference of the property of soil, it is impossible on the premise of being transformed to be applied to rock test, it is necessary to find and overcome
The insecure method of terminal torque.
Utility model content
The utility model provides a kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type, solves prior art
In test function is more single and hollow cylinder torsional shear instrument of suitable for soil sample cannot be applied to rock test solving, it is impossible to enter
On the premise of row transformation is to be applied to rock test, the insecure technical problem of moment of torsion on terminal sample is acted on.
In order to solve the above technical problems, the utility model provides a kind of many stress path rock open circles of torque feedback type
Post torsion shear apparatus, including：Torque sensor (30), torque controller, base (12), sleeve (10), push-down head (20), seaming chuck
(17), piston (1), the seat of honour (8), top cover (6), connecting rod (11) and torsion device；
In boss-shaped, base (12) upper surface center is provided with cylinder shape groove to base (12), and the is provided with inside base (12)
Five-channel (23), the 8th passage (15), the tenth passage (13), the two-port of each passage respectively positioned at base (12) outer wall with it is convex
Platform top, base (12) center is provided with the 9th passage (14), and the two-port of the 9th passage (14) is located at boss groove-bottom respectively
Portion and the outer wall of base (12), push-down head (20) are positioned in base (12), and spiral shell is passed through between push-down head (20) and base (12)
Tether and connect, push-down head (20) center is provided with the 6th passage (21) of insertion, and the 6th passage (21) is with the 9th passage (14) same
On one center line, the 7th passage (22) is provided with inside push-down head (20), the two-port of the 7th passage (22) is located at pushes respectively
The top of head (20) and outer wall, hollow cylindrical sleeve (10) are positioned on base (12), hollow cylindrical sleeve (10) bottom
By pin connect base (12), hollow cylindrical sleeve (10) top is provided with the seat of honour (8), and the seat of honour (8) are by being uniformly distributed
Connecting rod (11) be connected with base (12), the seat of honour (8) top is provided with top cover (6), and top cover (6) is by bolt and the seat of honour (8)
Connection, the seat of honour (8) and top cover (6) are internally formed cross oil pocket, and piston (1) is actively placed in cross in cross, piston (1)
In shape oil pocket, the upper end of piston (1) is stretched out from above top cover (6), and the lower end of piston (1) is stretched out from below the seat of honour (8), living
The lower end for filling in (1) is provided with seaming chuck (17), and upper end and the lower end of piston (1) of seaming chuck (17) are mutually twisted, seaming chuck (17)
Inside is provided with fourth lane (18), and the two ends of fourth lane (18) are respectively positioned at the bottom of seaming chuck (17) and outer wall, four-way
Road (18) is connected by blast pipe (19) with Five-channel (23), and parallel first passage (7) and threeway is provided with the seat of honour (8)
Road (9), the Single port of first passage (7) is located at the top of cross oil pocket, and the Single port of third channel (9) is located at cross oil
The bottom in chamber, two another port of passage are located at the outer wall of the seat of honour (8), and second channel (16), second are also provided with the seat of honour (8)
The two-port of passage (16) is located at outer wall and the bottom of the seat of honour (8) respectively, and torsion device is by moment of torsion transmission rod (2), jack
(3), oscillating bearing (4), moment of torsion counter-force seat (5) are constituted, and one end of moment of torsion transmission rod (2) is fixed on piston (1) top, and moment of torsion is passed
The other end of power bar (2) is connected by oscillating bearing (4) with the piston head of jack (3), the other end and moment of torsion of jack (3)
Counter-force seat (5) one end is hinged, and the other end of moment of torsion counter-force seat (5) is fixed on the seat of honour (8) top by connecting rod (11), and first leads to
Road (7), third channel (9), the 8th passage (15), the 9th passage (14), jack (3) connect hydraulic servo pump respectively, base
(12) with sleeve (10), base (12) and push-down head (20), the seat of honour (8) and sleeve (10), the seat of honour (8) and top cover (6), the seat of honour
(8) it is respectively equipped with sealing ring with piston (1), top cover (6) and piston (1) contact surface；
Wherein, the torque sensor (30) is arranged between the moment of torsion transmission rod (2) and the piston (1), and is passed through
Cross the torque controller to be connected with the jack (3), the output of feedback control jack (3).
Further, the upper and lower surface level of described base (12), push-down head (20), seaming chuck (17) and piston (1)
It is parallel.
Further, described moment of torsion transmission rod (2) and jack (3) is parallel to each other, and perpendicular to piston (1).
Further, the lower end of described seaming chuck (17) is in boss-shaped, and the upper end of push-down head (20) is in boss-shaped, two
Boss is with footpath and on same center line.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
The many stress path rock hollow cylinder torsional shear instrument of torque feedback type provided in the embodiment of the present application are by moment of torsion
Torque sensor is set between transmission rod and piston, real-time monitoring moment of torsion, and by torque controller feedback control jack
Power output, to cause that the final moment of torsion for being applied to sample is enough, so that guarantee test precision and reliability.
Further, many stress path rock hollow cylinder torsional shear instrument of torque feedback type solve rock indoor experimental rig
The single problem of stress path, independently or mixedly to rock sample loading axial force, interior confined pressure, outer confined pressure, moment of torsion, and can overcome
The defect that four kinds of external force are interfered when loading, can simulate the stress path of principal stress size variation or principal axis of stress rotation, turn round
The many stress path rock hollow cylinder torsional shear instrument of square feedback-type are rational in infrastructure, it is easy to manufacture, simple to operate, and measuring system is accurate,
High degree of automation, can be commonly used to the laboratory test of rock complex strain paths.
Brief description of the drawings
Fig. 1 is many stress path rock hollow cylinder torsional shear instrument structural representations of torque feedback type that the utility model is provided
Figure.
Specific embodiment
The embodiment of the present application is solved existing by providing a kind of torque feedback type many stress path rock hollow cylinder torsional shear instrument
Have in technology that test function is more single and hollow cylinder torsional shear instrument of suitable for soil sample cannot be applied to rock test solving,
On the premise of cannot being transformed to be applied to rock test, the insecure technical problem of moment of torsion on terminal sample is acted on；
The technique effect of the reliability of lifting terminal torque output is reached.
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this Shen
Please technical scheme detailed description, rather than the restriction to technical scheme, in the case where not conflicting, the application reality
Applying the technical characteristic in example and embodiment can be mutually combined.
Referring to Fig. 1,
Torque sensor 30, torque controller, base 12, sleeve 10, push-down head 20, seaming chuck 17, piston 1, the seat of honour 8,
Top cover 6, connecting rod 11 and torsion device.
The top of push-down head 20 is in boss-shaped, and the center of push-down head 20 is provided with the 6th passage 21 of insertion, and the 6th passage 21 is used
Be provided with the 7th passage 22 inside oil transportation, push-down head 20, the two-port of the 7th passage 22 be located at respectively the outer wall of push-down head 20 with it is convex
Platform top, the 7th passage 22 is used for transmission test data, the top of push-down head 20 connection rock sample.The bottom of seaming chuck 17 is in boss-shaped,
, with footpath and on same center line, the top of seaming chuck 17 is provided with square recessed for the boss of seaming chuck 17 and the boss of push-down head 20
Groove, is provided with fourth lane 18 inside seaming chuck 17, the two ends of fourth lane 18 are located at bottom and the outer wall of seaming chuck 17 respectively, the
Four-way 18 is used to be vented, the bottom of seaming chuck 17 connection rock sample, and the space that seaming chuck 17, rock sample, push-down head 20 are formed is used to apply
Plus interior confined pressure.
Base 12 is in boss-shaped, and Five-channel 23, the 8th passage 15, the tenth passage 13, each passage are provided with inside base 12
Two-port respectively positioned at outer wall and the boss top of base 12, Five-channel 23 is connected by blast pipe 19 with fourth lane 18
And for being vented, the 8th passage 15 is used for oil transportation, the tenth passage 13 and the 7th passage 22 as data wire introduction passage, base
12 centers are provided with the 9th passage 14, and the two-port of the 9th passage 14 is located at the outer wall of boss bottom portion of groove and base 12 respectively,
9th passage 14 is used for oil transportation, and the upper surface center of base 12 is provided with cylinder shape groove, and push-down head 20 is positioned in base 12, pushes
It is bolted between first 20 and base 12, and ensures the 9th passage 14 and the 6th passage 21 on same center line.It is empty
Heart cylindrical sleeve 10 is positioned on base 12, and the bottom of hollow cylindrical sleeve 10 is by pin connect base 12, hollow cylinder
The inner space of shape sleeve 10 is used to apply outer confined pressure.
The seat of honour 8 is positioned on hollow cylindrical sleeve 10, and the seat of honour 8 is connected by equally distributed connecting rod 11 with base 12
Connect, the top of the seat of honour 8 is provided with top cover 6, and top cover 6 is connected by bolt with the seat of honour 8, the seat of honour 8 and top cover 6 are internally formed cross oil
Chamber, piston 1 is in cross, and piston 1 is actively placed in cross oil pocket, and the upper end of piston 1 is stretched out from the top of top cover 6, living
The lower end of plug 1 is stretched out from the lower section at the seat of honour 8, the lower surface and base 12 of piston 1, push-down head 20, the upper and lower surface of seaming chuck 17
Horizontal parallel, the lower end of piston 1 is provided with square boss, and silica gel is smeared in the square boss outside of the lower end of piston 1, the lower end of piston 1
Square boss is mutually twisted and by silica gel sealing, parallel first is provided with the seat of honour 8 with the square groove of the upper end of seaming chuck 17
Passage 7 and third channel 9, the Single port of first passage 7 are located at the top of cross oil pocket, and the Single port of third channel 9 is located at
The bottom of cross oil pocket, two another port of passage are located at the outer wall at the seat of honour 8, and first passage 7 and third channel 9 are used for defeated
Oil, is also provided with second channel 16 in the seat of honour 8, the two-port of second channel 16 is located at outer wall and the bottom at the seat of honour 8 respectively, and second leads to
Road 16 is used to be vented.
Torsion device is made up of moment of torsion transmission rod 2, jack 3, oscillating bearing 4, moment of torsion counter-force seat 5, moment of torsion transmission rod 2
One end is fixed on the top of piston 1, and the other end of moment of torsion transmission rod 2 is connected by oscillating bearing 4 with the piston head of jack 3, and thousand
The other end on jin top 3 is hinged with 5 one end of moment of torsion counter-force seat, and the other end of moment of torsion counter-force seat 5 is fixed on by two connecting rods 11
The top of the seat of honour 8, moment of torsion transmission rod 2, the horizontal parallel of jack 3, and it is vertical with piston 1.
First passage 7, third channel 9, the 8th passage 15, the 9th passage 14, jack 3 connect hydraulic servo pump respectively,
Hydraulic servo pump can select high-precision hydraulic servo pump and ensure the Stability and veracity of loading system, by first passage 7
To cross oil pocket upper oil chamber oil transportation and axial force can be loaded, can be defeated to cross oil pocket bottom oil pocket by third channel 9
Piston 1 is lifted when oil is in order to off-test, can be passed through to the inside oil transportation of sleeve 10 and the outer confined pressure of loading by the 8th passage 15
9th passage 14 can load moment of torsion, second channel 16 to confined pressure in rock sample inside oil transportation and loading by the oil transportation of jack 3
Be vented during outer confined pressure for being loaded, fourth lane 18 and Five-channel 23 are vented when being used to load interior confined pressure.Tenth 13, passage
Controlled with data in the Single port of the outer wall of base 12 and acquisition system is connected, can real-time Transmission test data.
Base 12 and sleeve 10, base 12 and push-down head 20, the seat of honour 8 and sleeve 10, the seat of honour 8 and top cover 6, the seat of honour 8 with it is living
Plug 1, top cover 6 and the contact surface of piston 1 is respectively equipped with sealing ring, sealing and loading for ensureing torsion shear apparatus inside oil pocket
Reliability.
Operation principle of the invention is：
By setting the moment of torsion that torque sensor real-time monitoring terminal sample is received, and torsion is fed back to as controlled quentity controlled variable
Square controller, carries out logic comparing, drives jack to increase power output, and the part lost in structure is passed to make up machinery,
So as to ensure to be ultimately applied to the value that the moment of torsion on sample is test requirements document.
The two-port that data wire connects the 7th passage 22 is introduced in 7th passage 22, data wire is introduced in the tenth passage 13
The two-port of the tenth passage 13 is connected, the Single port that the tenth passage 13 is located at the outer wall of base 12 is controlled and acquisition system company with data
Connect.Meanwhile, the two-port of the 7th passage 22 and the tenth passage 13 is sealed respectively.
Prepare hollow cylinder rock sample, and medium position in rock sample inner and outer wall pastes foil gauge, rock sample inwall should
Become the data line ports that sheet data line is located at the top of the boss of push-down head 20 with the 7th passage 22 to be connected, the outer wall of boss of push-down head 20 with
The top outside the boss of push-down head 20 smears seccotine, and rock sample is bonded in the top of push-down head 20 by seccotine.
The outer wall of boss of seaming chuck 17 and the outside the boss of seaming chuck 17 smear seccotine, and seaming chuck 17 is bonded in by seccotine
Rock sample top, and ensure push-down head 20, rock sample, seaming chuck 17 on same center line, rock sample outer wall wraps up rubber sleeve, and leads to
Silica gel sealing rubber sleeve lower edges are crossed, rock sample and seaming chuck 17, push-down head 20 are connected as an entirety.
Push-down head 20 is positioned in base 12, is bolted between push-down head 20 and base 12, and ensures that the 6th leads to
On same center line, fourth lane 18 is connected the passage 14 of road 21 and the 9th by blast pipe 19 with Five-channel 23, and the 7th
Passage 22 is connected by data wire 24 with the tenth passage 13.
Hollow cylindrical sleeve 10 is positioned on base 12, and the bottom of hollow cylindrical sleeve 10 passes through pin connect base
12, the seat of honour 8 is positioned on hollow cylindrical sleeve 10, and silica gel is smeared in the square boss of the lower end of piston 1 outside, place piston 1 in
In cross oil pocket, the lower end of piston 1 is stretched out from the lower section at the seat of honour 8, and ensures the lower surface and base 12, push-down head of piston 1
20th, the upper and lower surface horizontal parallel of seaming chuck 17, the square boss of the lower end of piston 1 is mutual with the square groove of the upper end of seaming chuck 17
Merga pass silica gel sealing is stung, top cover 6 is inserted in piston 1 and is positioned on the seat of honour 8, and top cover 6 is connected by bolt with the seat of honour 8.
One end of moment of torsion transmission rod 2 is fixed on the top of piston 1, and the other end of moment of torsion transmission rod 2 passes through oscillating bearing 4 and thousand
The piston head connection on jin top 3, the other end of jack 3 is hinged with 5 one end of moment of torsion counter-force, it is ensured that moment of torsion transmission rod 2 and very heavy
3 horizontal parallels and vertical with piston 1 are pushed up, two connecting rods 11 are each passed through two screwed holes of moment of torsion counter-force 5 other ends of seat, and
The moment of torsion counter-force seat 5, seat of honour 8, base 12 are fixed, by the way that connecting rod 11 is through the residual thread hole of the seat of honour 8 and base 12 and incites somebody to action
The seat of honour 8 and base 12 are fixed.
First passage 7, third channel 9, the 8th passage 15, the 9th passage 14, jack 3 connect hydraulic servo pump respectively,
Second channel 16, Five-channel 23, the tenth passage 13 were closed before on-test.
When outer confined pressure is loaded, second channel 16 is opened, by hydraulic servo pump to the oil transportation of the 8th passage 15, second channel
16 close second channel 16 when having hydraulic oil to flow out, and continue loading periphery and are depressed into setting value, and off-test simultaneously need to unload outer confined pressure
When, open second channel 16.
When confined pressure in loading, Five-channel 23 is opened, by hydraulic servo pump to the oil transportation of the 9th passage 14, Five-channel
23 have hydraulic oil that Five-channel 23 is closed when flowing out, and continue to load interior confined pressure to setting value, and off-test simultaneously need to unload interior confined pressure
When, open Five-channel 23.
When axial force is loaded, by hydraulic servo pump to the oil transportation of first passage 7 to setting value, carrier fluid is unloaded during off-test
Press the oil pressure of servopump.
When moment of torsion is loaded, by hydraulic servo pump to the oil transportation of jack 3 to setting value, jack is unloaded during off-test
3 oil pressure.
Off-test and when need to take out rock sample, removes connecting rod 11, torsion device, top cover 6, by hydraulic servo pump successively
To the oil transportation of third channel 9 and piston 1 is lifted, oil transportation is stopped when piston 1 and rock sample undisturbed, removed piston 1 and unload load hydraulic
The oil pressure of servopump, removes the seat of honour 8, the bolt that sleeve 10, push-down head 20 are connected with base 12 successively, removal seaming chuck 17 and under
Pressure head 20 simultaneously obtains rock sample.
One or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage：
The many stress path rock hollow cylinder torsional shear instrument of torque feedback type provided in the embodiment of the present application are by moment of torsion
Torque sensor is set between transmission rod and piston, real-time monitoring moment of torsion, and by torque controller feedback control jack
Power output, to cause that the final moment of torsion for being applied to sample is enough, so that guarantee test precision and reliability.
Further, many stress path rock hollow cylinder torsional shear instrument of torque feedback type solve rock indoor experimental rig
The single problem of stress path, independently or mixedly to rock sample loading axial force, interior confined pressure, outer confined pressure, moment of torsion, and can overcome
The defect that four kinds of external force are interfered when loading, can simulate the stress path of principal stress size variation or principal axis of stress rotation, turn round
The many stress path rock hollow cylinder torsional shear instrument of square feedback-type are rational in infrastructure, it is easy to manufacture, simple to operate, and measuring system is accurate,
High degree of automation, can be commonly used to the laboratory test of rock complex strain paths.
It should be noted last that, above specific embodiment is only used to illustrate the technical solution of the utility model rather than limit
System, although being described in detail to the utility model with reference to example, it will be understood by those within the art that, can be right
The technical solution of the utility model is modified or equivalent, without deviating from the spirit and model of technical solutions of the utility model
Enclose, it all should cover in the middle of right of the present utility model.
Claims (4)
1. many stress path rock hollow cylinder torsional shear instrument of a kind of torque feedback type, it is characterised in that including：Torque sensor
(30), torque controller, base (12), sleeve (10), push-down head (20), seaming chuck (17), piston (1), the seat of honour (8), top cover
(6), connecting rod (11) and torsion device；
In boss-shaped, base (12) upper surface center is provided with cylinder shape groove to base (12), and base (12) inside is provided with the 5th and leads to
Road (23), the 8th passage (15), the tenth passage (13), the two-port of each passage are located at outer wall and the boss top of base (12) respectively
Portion, base (12) center is provided with the 9th passage (14), the two-port of the 9th passage (14) be located at respectively boss bottom portion of groove and
The outer wall of base (12), push-down head (20) is positioned in base (12), is connected by bolt between push-down head (20) and base (12)
Connect, push-down head (20) center is provided with the 6th passage (21) of insertion, and the 6th passage (21) is with the 9th passage (14) in same
On center line, the 7th passage (22) is provided with inside push-down head (20), the two-port of the 7th passage (22) is located at push-down head respectively
(20) top and outer wall, hollow cylindrical sleeve (10) are positioned on base (12), and hollow cylindrical sleeve (10) bottom leads to
Pin connect base (12) is crossed, hollow cylindrical sleeve (10) top is provided with the seat of honour (8), and the seat of honour (8) are by equally distributed
Connecting rod (11) is connected with base (12), and the seat of honour (8) top is provided with top cover (6), and top cover (6) is connected by bolt and the seat of honour (8)
Connect, the seat of honour (8) and top cover (6) are internally formed cross oil pocket, piston (1) is actively placed in cross in cross, piston (1)
In oil pocket, the upper end of piston (1) is stretched out from above top cover (6), and the lower end of piston (1) is stretched out from below the seat of honour (8), piston
(1) lower end is provided with seaming chuck (17), and upper end and the lower end of piston (1) of seaming chuck (17) are mutually twisted, in seaming chuck (17)
Portion is provided with fourth lane (18), and the two ends of fourth lane (18) are respectively positioned at the bottom of seaming chuck (17) and outer wall, fourth lane
(18) it is connected with Five-channel (23) by blast pipe (19), parallel first passage (7) and third channel is provided with the seat of honour (8)
(9), the Single port of first passage (7) is located at the top of cross oil pocket, and the Single port of third channel (9) is located at cross oil pocket
Bottom, two another port of passage are located at the outer wall of the seat of honour (8), second channel (16) are also provided with the seat of honour (8), and second leads to
The two-port in road (16) respectively positioned at the seat of honour (8) outer wall and bottom, torsion device by moment of torsion transmission rod (2), jack (3),
Oscillating bearing (4), moment of torsion counter-force seat (5) are constituted, and one end of moment of torsion transmission rod (2) is fixed on piston (1) top, moment of torsion transmission rod
(2) the other end is connected by oscillating bearing (4) with the piston head of jack (3), the other end and the moment of torsion counter-force of jack (3)
Seat (5) one end is hinged, and the other end of moment of torsion counter-force seat (5) is fixed on the seat of honour (8) top, first passage by connecting rod (11)
(7), third channel (9), the 8th passage (15), the 9th passage (14), jack (3) connect hydraulic servo pump respectively, base
(12) with sleeve (10), base (12) and push-down head (20), the seat of honour (8) and sleeve (10), the seat of honour (8) and top cover (6), the seat of honour
(8) it is respectively equipped with sealing ring with piston (1), top cover (6) and piston (1) contact surface；
Wherein, the torque sensor (30) is arranged between the moment of torsion transmission rod (2) and the piston (1), and by institute
State torque controller to be connected with the jack (3), the output of feedback control jack (3).
2. many stress path rock hollow cylinder torsional shear instrument of torque feedback type as claimed in claim 1, it is characterised in that：It is described
Base (12), push-down head (20), the upper and lower surface horizontal parallel of seaming chuck (17) and piston (1).
3. many stress path rock hollow cylinder torsional shear instrument of torque feedback type as claimed in claim 1, it is characterised in that：It is described
Moment of torsion transmission rod (2) and jack (3) be parallel to each other, and perpendicular to piston (1).
4. many stress path rock hollow cylinder torsional shear instrument of torque feedback type as claimed in claim 1, it is characterised in that：It is described
The lower end of seaming chuck (17) be in boss-shaped, the upper end of push-down head (20) is in boss-shaped, and two boss are with footpath and in same
On heart line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231020.0U CN206270178U (en) | 2016-11-14 | 2016-11-14 | A kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621231020.0U CN206270178U (en) | 2016-11-14 | 2016-11-14 | A kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type |
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| Publication Number | Publication Date |
|---|---|
| CN206270178U true CN206270178U (en) | 2017-06-20 |
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|---|---|---|---|
| CN201621231020.0U Expired - Fee Related CN206270178U (en) | 2016-11-14 | 2016-11-14 | A kind of many stress path rock hollow cylinder torsional shear instrument of torque feedback type |
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| CN (1) | CN206270178U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931444A (en) * | 2018-04-10 | 2018-12-04 | 西安理工大学 | A kind of rock hollow cylinder scene torsion shear apparatus and test method |
| CN113358480A (en) * | 2021-05-13 | 2021-09-07 | 太原理工大学 | Coal rock mechanical test device and test method |
| CN114165212A (en) * | 2021-11-26 | 2022-03-11 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
-
2016
- 2016-11-14 CN CN201621231020.0U patent/CN206270178U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931444A (en) * | 2018-04-10 | 2018-12-04 | 西安理工大学 | A kind of rock hollow cylinder scene torsion shear apparatus and test method |
| CN113358480A (en) * | 2021-05-13 | 2021-09-07 | 太原理工大学 | Coal rock mechanical test device and test method |
| CN113358480B (en) * | 2021-05-13 | 2022-08-05 | 太原理工大学 | Coal rock mechanical test device and test method |
| CN114165212A (en) * | 2021-11-26 | 2022-03-11 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
| CN114165212B (en) * | 2021-11-26 | 2023-09-15 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
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