CN207114160U - The prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion - Google Patents
The prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion Download PDFInfo
- Publication number
- CN207114160U CN207114160U CN201721001396.7U CN201721001396U CN207114160U CN 207114160 U CN207114160 U CN 207114160U CN 201721001396 U CN201721001396 U CN 201721001396U CN 207114160 U CN207114160 U CN 207114160U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- automatically
- cylinder
- taper
- thrust
- 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 - Fee Related
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims abstract description 9
- 239000000446 fuel Substances 0.000 claims abstract description 3
- 238000012360 testing method Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 80
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010727 cylinder oil Substances 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 description 1
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007586 pull-out test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 101150006257 rig-4 gene Proteins 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion, including support meanss, support meanss clamp oil cylinder automatically provided with top and bottom clamps oil cylinder automatically；Top clamps oil cylinder and clamps the oil supply system that oil cylinder connects its promising fuel feeding automatically with bottom automatically；It is clamped in the both ends of anchor rod body to be measured respectively；Each oil cylinder clutch end is connected with a thrust crossbeam, and its middle and upper part clamps installation inside the thrust crossbeam of oil cylinder and rolls cone cylinder automatically, and described rolling cone cylinder is connected with the output shaft of a motor, and motor drives its rotation；The inner ring surface that thrust header portion is embedded in described rolling cone cylinder is provided with taper circular groove, and automatic clamping device I is installed inside taper circular groove；And the thrust crossbeam inner surface that bottom clamps oil cylinder automatically is directly taper circular groove, automatic clamping device II has been mounted directly in taper circular groove；Clamping of the identical realization of automatic clamping device I, II structure to anchor pole.
Description
Technical field
It the utility model is related to underground engineering support testing of materials field, more particularly to a kind of prestressing force acted on by moment of torsion
Anchor rod body tensile mechanical properties experimental rig.
Background technology
Prestressed anchor is as a kind of effective support technology, in China's coal-mine engineering field applicating history more than 60
Year, at present as the main body support form in China's coal-mine tunnel.At the scene in roadway bolting support work progress, when country rock bores
After hole is finished, anchor rod body is anchored by resin explosive roll, matched pallet and nut install, it is general it is more using pneumatic impact wrench or
The mode of torque wrench tightening nut, tensioning is carried out to anchor rod body, applies prestressing force.When the rotation of pneumatic impact wrench or torque wrench
When tight moment of torsion reaches certain design load, indicate that prestressed anchor installs.With Shandong Province Juye mining area Zhao Lou collieries coal road
Exemplified by, top plate indulges muscle twisted steel anchor rod using the left-handed nothing of KMG500 high intensity, and design torque 120Nm, two help to use
The left-handed nothings of KMG400 indulge muscle full-thread bolt, design torque 60Nm.
Due to being influenceed by above-mentioned construction technology, actual to should be at a kind of pulling force, moment of torsion common for the body of rod after rockbolt installation
Active state.However, the research on anchor rod body mechanical property at present, is tested merely by indoor body of rod stretching mechanical mostly
Tested, do not acted in view of moment of torsion suffered during rockbolt installation, this necessarily comes in and goes out with live physical presence.And
And when considering anchor pole tension-torsion collective effect, rational experimental rig is also lacked at present and carries out Validity Test.Asked for above-mentioned
Topic, the utility model proposes a kind of prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion, it can give
Effectively solve.
Utility model content
The utility model is not in the experiment of prestressed anchor club shaft conventional chambers stretching mechanical, considering live rockbolt installation
The moment of torsion effect that process is born, or the tension-torsion that effectively simulation anchor rod body is born is difficult to using routine test device and made jointly
With the deficiencies of, propose a kind of experimental rig, can be achieved under different designs moment of torsion and stress distribution, prestressed anchor club shaft mechanics
The Validity Test of performance.
To achieve the above object, concrete technical scheme of the present utility model is as follows：
A kind of prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion, including support meanss, it is described
Support meanss clamp oil cylinder automatically provided with top and bottom clamps oil cylinder automatically；Described top clamps oil cylinder with automatically
Portion clamps the oil supply system that oil cylinder connects its promising fuel feeding automatically；It is clamped in the both ends of anchor rod body to be measured respectively, right up and down
Claim installation；The clutch end of each oil cylinder is connected with a thrust crossbeam, is connected wherein clamping oil cylinder automatically with top
Thrust crossbeam I inside installation roll cone cylinder, described rolling cone cylinder is connected with a motor, and motor can drive it
Rotation；The inner ring surface that thrust header portion is embedded in described rolling cone cylinder is provided with taper circular groove, pacifies inside taper circular groove
Fill automatic clamping device I；And it is directly taper circular groove to clamp the thrust crossbeam II inner ring surfaces that oil cylinder is connected automatically with bottom,
Automatic clamping device II has been mounted directly in described taper circular groove.
Described automatic clamping device I, II structure is identical, each including special-shaped fixture block, high-strength taper stage clip, hollow taper
Circle set and annular groove lid, described special-shaped fixture block can move up and down along taper circular groove；Described high-strength taper stage clip is installed on different
Clevis block one end, high-strength taper stage clip are compressed by annular groove lid, and described annular groove lid is threadedly secured in taper circular groove,
Described hollow taper circle set is threadedly secured to annular groove lid inner ring surface, hollow taper circle set outer surface, taper circular groove
Inner surface taper surface angle of inclination is consistent, together form tapered channel, and special-shaped fixture block can be made freely up and down to be moved along tapered channel
It is dynamic；The other end of described special-shaped fixture block is provided with hollow H pipes, and the hollow H pipes are arranged on corresponding cylinder block.
When upper hollow clamp automatically oil cylinder it is fuel-displaced when, corresponding thrust crossbeam I is moved down, and can make hollow H tube tops end
Special-shaped fixture block is withstood, special-shaped fixture block is moved up compression volute spring along tapered channel, and keeps automatic and opens, anchor rod body upper end
It can pass freely through, and when oil cylinder oil inlet, corresponding thrust crossbeam moves up, and hollow H tube tops end and special-shaped fixture block separate, different
Clevis block moves down under the effect of high-strength volute spring, and the automatic clamping to anchor rod body upper end can be achieved.
When lower hollow clamps oil cylinder oil inlet automatically, corresponding thrust crossbeam II is moved down, and can make hollow H ttom of pipe end
Separated with special-shaped fixture block, special-shaped fixture block moves up under the effect of high-strength volute spring, and the automatic folder to anchor rod body lower end can be achieved
Hold；And when oil cylinder is fuel-displaced, corresponding thrust crossbeam is moved up, and hollow H ttom of pipe end can be made to withstand special-shaped fixture block, makes profile clamp
Block moves down compression volute spring along tapered channel, and keeps automatic and open, and anchor rod body lower end can pass freely through.
Further, described support meanss include four threaded spreader bars and two clamp oil cylinder and bottom automatically with top
The movable ring flat-plate of automatic clamping oil cylinder connection, described two movable ring flat-plates arrange that each movable ring flat-plate is provided with up and down
The hole that four confessions, four threaded spreader bars pass through, threaded spreader bar are connected through the hole on movable ring flat-plate and using high-strength nut
Connect, by rotating high-strength nut, movable ring flat-plate threadingly dagger short transverse can move up and down.
Further, described screw thread dagger sets elongated thread surface, four screw thread dagger bottoms along body of rod length direction
A plectane is installed in portion, i.e. plectane is installed on experimental rig bottom, and bottom plectane lower surface uniform intervals are fixed provided with several
Support, is supported in earth's surface or other testing stand surfaces, circumferentially uniform intervals are symmetrical for bottom plectane border position for experimental rig
4 circular holes are set, are fixed for screw thread dagger by high-strength nut.
Further, described movable ring flat-plate is annular, is installed on bottom plectane top；Described movable ring flat-plate
Outer shroud peripheral position is provided with the circular hole to match with screw thread dagger external diameter with bottom plectane peripheral position, is passed through for screw thread dagger
And it is attached using high-strength nut.
Further, it is hollow cylindrical that described top clamps oil cylinder, bottom and clamps the oil cylinder of oil cylinder automatically automatically,
Form by hollow piston cylinder, hollow cylinder barrel, can not be produced relative rotation between each component.
Further, described hollow cylinder barrel is provided with the horizontal overhanging edge of a wing close to thrust beam-end position, and overhanging
Flange portions are circumferentially provided with a series of round holes, position of opening, size and movable ring flat-plate inner ring border position circle hole one
Cause, clamp oil cylinder, bottom automatically for top and clamp oil cylinder automatically and be separately fixed at by bolt in upper and lower movable ring flat-plate inner ring
Heart position.
Further, it is annulus tubular structure to clamp the thrust crossbeam that oil cylinder is connected automatically with top, and inner ring surface edge is high
Degree direction is provided with indent step, and inner ring center is provided with rolling cone cylinder.It is horizontal to clamp the thrust that oil cylinder is connected automatically with top
Beam top is provided with electric rotating machine, and electric rotating machine shell is secured by bolts at thrust beam surface upper outer shroud.
Further, the rolling cone cylinder that described top clamps oil cylinder automatically is annulus tubular, along short transverse thickness not
Uniformly；Its top overhangs thrust crossbeam I, rolls the outer ring outer surface bottom of cone cylinder and is provided with evagination step, in thrust crossbeam I
Ring surface indent step matches, and cone cylinder bottom is embedded to be fixed on thrust crossbeam I inner ring surfaces for rolling, both contact surface it
Between be provided with rolling bearing；Roll cone cylinder top and stretch out thrust crossbeam I parts, external annular surface is circumferentially arranged to concavo-convex tooth form；Institute
The electric rotating machine rotating shaft bottom stated is overhanging, and sponson is annulus tubular, and inner ring surface is circumferentially arranged to concavo-convex tooth form, specifically
Concave, convex spot size is convex with rolling cone cylinder top external annular surface, recessed spot size is consistent, and electric rotating machine rotating shaft bottom can be made overhanging
Part, which is coated at, rolls cone cylinder top stretching thrust crossbeam I parts, when electric rotating machine energization axis of rotation, rolling can be driven to bore
Cylinder is in thrust crossbeam I inner rotations.
Further, described taper circular groove inner ring surface is provided with 3 raised bar shapeds along taper incline direction uniform intervals
Rib, described special-shaped fixture block include three pieces altogether, and vertically incline direction is slotted provided with bar shaped for outer surface center, bar shaped fluting
Size is consistent with taper circular groove inner ring surface bar shaped rib size, and special-shaped fixture block is placed in taper circular groove inner ring surface by bar shaped fluting
At bar shaped rib, it can be moved up and down along bar shaped rib.
Further, described oil supply system includes servo oil pump, and described top clamps oil cylinder automatically, bottom presss from both sides automatically
Oil cylinder is held by being connected into and out of the corresponding servo oil pump of oil pipe, oil pressure sensor is installed in oil cylinder inner wall, in thrust horizontal stroke
Displacement transducer is installed on beam, torque sensor is installed rolling cone cylinder position, is provided with anchor rod body surface to be measured
Strain transducer；Described servo oil pump, motor and all kinds of monitoring sensors is connected with central control system, can be achieved not
With under design torque and stress distribution, the Validity Test of prestressed anchor club shaft mechanical property.
The beneficial effects of the utility model are：
1) pulling force and moment of torsion collective effect are considered, meets the site operation loading characteristic of prestressed anchor, makes traditional
The experiment of anchor rod body stretching mechanical is more authentic and valid.
2) by using central control system, coordinate the oil pressure sensor being arranged on inside automatic clamping oil cylinder, be arranged on
The displacement transducer of thrust crossbeam position, installed in roll the torque sensor at cone cylinder position, installed in anchor rod body surface
The monitoring elements such as strain transducer, under the influence of the factors such as different moments of torsion, different anchor rod prestress can be achieved, prestressed anchor club shaft
The Validity Test of tensile mechanical properties, a whole set of experimental rig, which can be realized, to be automatically controlled and function is efficient.
3) oil cylinder, and the component such as matching thread dagger, movable ring flat-plate are clamped using automatic, can realized automatically to anchor to be measured
With unclamping, convenient disassembly is easy to operation for the automatic clamping of club shaft.
4) top, bottom clamp oil cylinder and threadingly dagger can moved up and down automatically, available for meeting different length anchor pole bar
The loading test of body.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding of the present application, and the application's shows
Meaning property embodiment and its illustrate be used for explain the application, do not form the improper restriction to the application.
Fig. 1 is structural representation when the utility model embodiment anchor rod body to be measured installs；
Fig. 2 is that the top of the utility model embodiment clamps oil cylinder centre section structural representation automatically；
Fig. 3 is that the bottom of the utility model embodiment clamps oil cylinder centre section structural representation automatically；
Fig. 4 is A-A section plan views in Fig. 2；
Fig. 5 is B-B sectional drawings in Fig. 2；
Fig. 6 is special-shaped fixture block top plan；
Fig. 7 is special-shaped fixture block center section plan；
Fig. 8 is rolling cone cylinder top plan；
Fig. 9 is rolling cone cylinder center section plan；
Figure 10 is hollow taper circle set top plan；
Figure 11 is hollow taper circle set center section plan；
Figure 12 is annular groove tops top view；
Figure 13 is annular groove lid center section plan；
Wherein：1-screw thread dagger；2-bottom plectane；3-movable ring flat-plate；4-top clamps oil cylinder automatically；5-under
Portion clamps oil cylinder automatically；6-electric rotating machine；7-servo oil pump；8-oil pipe；9-central control system；10-anchor pole bar to be measured
Body；11-hollow piston cylinder；12-hollow cylinder barrel；13-thrust crossbeam I；14-thrust crossbeam II；15-roll cone cylinder；16—
Special-shaped fixture block；17-high-strength taper stage clip；18-hollow taper circle set；19-annular groove lid；20-hollow H pipes.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
By taking indoor prestressed anchor club shaft pull-out test as an example, the utility model is done with embodiment below in conjunction with the accompanying drawings into
One step explanation.
As shown in figures 1-13, a kind of tensile mechanical properties experimental rig of prestressed anchor club shaft 10 acted on by moment of torsion, bag
Include screw thread dagger 1, bottom plectane 2, movable ring flat-plate 3, top clamp oil cylinder 4, bottom and clamps oil cylinder 5, electric rotating automatically automatically
Machine 6, servo oil pump 7, oil pipe 8, central control system 9 and anchor rod body to be measured 10 form.
Described screw thread dagger 1 totally 4, elongated thread surface is set along body of rod length direction, described bottom plectane 2 is
Circle, experimental rig bottom is installed on, the lower surface uniform intervals of bottom plectane 2 are provided with several fixation supports, for experimental rig
Earth's surface or other testing stand surfaces are supported in, circumferentially uniform intervals are symmetrical arranged 4 circular holes to the border position of bottom plectane 2, supply
Screw thread dagger 1 is fixed by high-strength nut.
Described movable ring flat-plate 3 is annular, is installed on the top of bottom plectane 2, altogether including upper and lower two.Described
The movable outer shroud peripheral position of ring flat-plate 3 is provided with the circular hole to match with the external diameter of screw thread dagger 1 with the peripheral position of bottom plectane 2,
Totally 4, pass through for screw thread dagger 1 and be attached using high-strength nut, by rotating high-strength nut, movable ring flat-plate 3 can edge
The short transverse of screw thread dagger 1 moves up and down.
It is hollow cylindrical that described top clamps oil cylinder 4, bottom and clamps oil cylinder 5 automatically automatically, by hollow piston
The components such as cylinder 11, hollow cylinder barrel 12, thrust crossbeam 13/14 form, and can not be produced relative rotation between each component.Described top
The automatic clamping thrust crossbeam of oil cylinder 4 is thrust crossbeam I 13, and it is thrust crossbeam II 14 that bottom clamps the thrust crossbeam of oil cylinder 5 automatically, is removed
Thrust beam structure form has differences outer, and it is consistent that top, bottom clamp oil cylinder 5 remaining each scantling, form automatically.Institute
The bottom of hollow piston cylinder 11 stated is inside hollow cylinder barrel 12, top sponson top and the phase of thrust crossbeam I 13 or II 14
Even.Described hollow cylinder barrel 12 is provided with the horizontal overhanging edge of a wing close to the end position of thrust crossbeam I 13 or II 14, and on the overhanging edge of a wing
Part is circumferentially provided with a series of round holes, and position of opening, size are consistent with the movable inner ring border position circle hole of ring flat-plate 3,
Clamp oil cylinder 4, bottom automatically for top and clamp oil cylinder 5 automatically and be separately fixed at by bolt in the upper and lower inner ring of movable ring flat-plate 3
Heart position.
Described thrust crossbeam I 13 is annulus tubular, and inner ring surface is provided with indent step, inner ring centre bit along short transverse
Put to be provided with and roll cone cylinder 15, the top of thrust crossbeam I 13 is provided with electric rotating machine 6, and the shell of electric rotating machine 6 is secured by bolts in
At the upper surface outer shroud of thrust crossbeam I 13.
Described rolling cone cylinder 15 is annulus tubular, and in uneven thickness along short transverse, top overhangs thrust crossbeam I
13, roll the outer ring outer surface bottom of cone cylinder 15 and be provided with evagination step, with the inner ring surface indent step phase of thrust crossbeam I 13
Match somebody with somebody, be fixed on the inner ring surface of thrust crossbeam I 13 for rolling the bottom of cone cylinder 15 and embedding, both are provided with the axis of rolling between contacting surface
Hold.Roll the top of cone cylinder 15 and stretch out the part of thrust crossbeam I 13, external annular surface is circumferentially arranged to concavo-convex tooth form.Described rotation
The rotating shaft bottom of motor 6 is overhanging, and sponson is annulus tubular, and inner ring surface is circumferentially arranged to concavo-convex tooth form, specific concave, convex portion
Position size is convex with the rolling top external annular surface of cone cylinder 15, recessed spot size is consistent, can make the rotating shaft bottom sponson of electric rotating machine 6
It is coated at and rolls the part of the top of cone cylinder 15 stretching thrust crossbeam I 13, when 6 energization axis of rotation of electric rotating machine, rolling can be driven
Cone cylinder 15 is in the inner rotation of thrust crossbeam I 13.
The described bottom of rolling cone cylinder 15 is embedded in the part inner ring surface of thrust crossbeam I 13 and is provided with taper circular groove, taper circle
Automatic clamping device, including special-shaped fixture block 16, high-strength taper stage clip 17, hollow taper circle set 18, annular groove are installed inside groove
Lid 19.Described taper circular groove inner ring surface is provided with 3 raised bar shaped ribs, described abnormity along taper incline direction uniform intervals
Fixture block 16 includes three pieces altogether, and vertically incline direction is slotted provided with bar shaped for outer surface center, bar shaped fluting size and taper
Circular groove inner ring surface bar shaped rib size is consistent, and special-shaped fixture block 16 is placed in taper circular groove inner ring surface bar shaped rib by bar shaped fluting
Place, can be moved up and down along bar shaped rib.Described high-strength taper stage clip 17 is installed at the special-shaped top stage of fixture block 16, high-strength taper
The top of stage clip 17 is annular groove lid 19, and described annular groove lid 19 is threadedly secured at the top of taper circular groove, and described is hollow
Taper circle set 18 is threadedly secured to the annular inner ring surface of groove lid 19, table in 18 outer surfaces of hollow taper circle set, taper circular groove
Face taper surface angle of inclination is consistent, together form tapered channel, and special-shaped fixture block 16 can be made freely up and down to be moved along tapered channel.
The described lower central position of thrust crossbeam I 13, is provided with hollow H pipes 20, and hollow H pipes 20 are threadedly secured to hollow cylinder barrel
12 top centers.When top clamp automatically oil cylinder 4 it is fuel-displaced when, thrust crossbeam I 13 moves down, and can push up the hollow top of H pipes 20
Firmly special-shaped fixture block 16, special-shaped fixture block 16 is moved up compression volute spring along tapered channel, and keep automatic and open, anchor pole 10 can be certainly
By through and when oil cylinder oil inlet, thrust crossbeam I 13 moves up, and the hollow top of H pipes 20 and special-shaped fixture block 16 separate, special-shaped fixture block
16 move down under the effect of high-strength taper stage clip 17, and the automatic clamping to anchor pole 10 can be achieved.
The described center of thrust crossbeam II 14 is directly provided with taper circular groove, taper circular groove size, internal each component chi
Very little, arrangement and function are consistent with the rolling inner ring surface taper circular groove of cone cylinder 15 of thrust crossbeam I 13 and internal each component.
Described top clamps oil cylinder 4, bottom and clamps oil cylinder 5 automatically by into and out of oil pipe 8 and the phase of servo oil pump 7 automatically
Even, the automatic oil cylinder inner wall that clamps is provided with oil pressure sensor, and described thrust crossbeam I 13, II 14 is provided with displacement transducer, institute
The position of rolling cone cylinder 15 stated is provided with torque sensor, and the described surface of anchor rod body to be measured 10 is provided with strain transducer.
Described servo oil pump 7, electric rotating machine 6 and all kinds of monitoring sensors is connected with central control system 9, and different designs can be achieved and turn round
Under square and stress distribution, the Validity Test of the mechanical property of prestressed anchor club shaft 10.
A kind of described prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion, concrete operation method
For：
Step 1：Oil return is carried out by clamping oil cylinder 4,5 automatically to top, bottom into and out of oil pipe 8, it is ensured that automatic clamping dress
Put and be in open configuration；
Step 2：The high-strength nut of screw thread dagger 1 is rotated, top is moved up and clamps oil cylinder 4 automatically, to install anchor rod body to be measured
10 reserve enough lower spaces；
Step 3：Anchor rod body 10 to be measured is stretched into bottom to clamp automatically in the automatic clamping device of 5 thrust crossbeam of oil cylinder II 14
Portion, and it is oil-filled to carry out oil cylinder, bottom is clamped the bottom of 5 Automatic-clamping anchor rod body of oil cylinder 10 automatically；
Step 4：The high-strength nut of screw thread dagger 1 is rotated, top is moved down and clamps oil cylinder 4 automatically, it is ensured that anchor rod body 10 to be measured
Top is stretched into top and clamped automatically inside the automatic clamping device of oil cylinder 4, and it is oil-filled to carry out oil cylinder, top is clamped oil cylinder 4 automatically
The top of Automatic-clamping anchor rod body 10；
Step 5：It is oil-filled that oil cylinder 4,5 is clamped by top, bottom automatically, anchor rod body 10 to be measured is loaded, treats anchor
When the axle power of club shaft 10 reaches design prestress value, stop loading and carrying out pressurize；
Step 6：Cone cylinder 15 is rolled by the rotary thrust crossbeam I 13 of electric rotating machine 6, treats that the moment of torsion of anchor rod body 10 reaches design
During torque value, stop loading and carrying out pressurize；
Step 7：By the way of hierarchical loading, anchor rod body 10 to be measured is continued to load, every grade of load control exists
Between 5kN~20kN, after the stable 2min of every grade of load, the loading of next stage load can be carried out, until the body of rod produce it is disrumpent feelings,
Record the stress of experiment process anchor rod body 10 and deformation data；
Step 8：Move up top and clamp oil cylinder 4 automatically, to avoid the top disrumpent feelings bottom of anchor rod body 10 of oil cylinder oil return process
The top of anchor rod body 10 disrumpent feelings with bottom produces and contacted；
Step 9：Clamp oil cylinder 4,5 automatically to top, bottom and carry out oil return, automatic clamping device opens, removed brokenly automatically
Disconnected anchor rod body 10, can carry out next test cycle.
The prestressed anchor club shaft tensile mechanical properties experimental rig that this kind of the utility model is acted on by moment of torsion, subjects
Can be the normal thread steel anchor rod body of rod or the full-thread bolt body of rod, or the New Type Material such as fiberglass reinforced plastics (GFRP)
Anchor rod body, specific experimental rig each scantling, each element mechanics performance parameter of Loading Control System and operating process, can root
Adjusted accordingly according to specific test requirements document.
Preferred embodiment of the present utility model is the foregoing is only, is not whole embodiments of the present utility model,
It is all within the spirit and principles of the utility model not to limit the utility model, any modification for being made, equivalent substitution,
Improve etc., it should be included within the scope of protection of the utility model.
In addition to technical characteristic described in specification, remaining technical characteristic is technology known to those skilled in the art, in order to prominent
Go out innovative characteristicses of the present utility model, above-mentioned technical characteristic will not be repeated here.
Claims (8)
1. a kind of prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion, it is characterised in that including support
Device, described support meanss clamp oil cylinder automatically provided with top and bottom clamps oil cylinder automatically；Described top presss from both sides automatically
Hold oil cylinder and clamp the oil supply system that oil cylinder connects its promising fuel feeding automatically with bottom；It is clamped in the two of anchor rod body to be measured respectively
End, installation symmetrical above and below；The clutch end of each oil cylinder is connected with a thrust crossbeam, wherein being clamped automatically with top
Installation rolls cone cylinder inside the connected thrust crossbeam I of oil cylinder, and described rolling cone cylinder is connected with a motor, motor
Drive its rotation；The inner ring surface that thrust header portion is embedded in described rolling cone cylinder is provided with taper circular groove, taper circular groove
Inside installation automatic clamping device I；And it is directly taper to clamp the thrust crossbeam II inner ring surfaces that oil cylinder is connected automatically with bottom
Circular groove, automatic clamping device II is mounted directly in described taper circular groove；
Described automatic clamping device I, II structure is identical, each including fixture block, high-strength taper stage clip, hollow taper circle set and ring
Shape groove lid, described fixture block can move up and down along taper circular groove；Described high-strength taper stage clip is installed on fixture block one end, high-strength cone
Shape stage clip is compressed by annular groove lid, and described annular groove lid is threadedly secured in taper circular groove, described hollow taper circle
Set is threadedly secured to annular groove lid inner ring surface, and hollow taper circle set outer surface, taper circular groove inner surface taper surface tilt
Angle is consistent, together form tapered channel, and fixture block can be made freely up and down to be moved along tapered channel；The other end of described fixture block
Hollow H pipes are installed, the hollow H pipes are arranged on corresponding cylinder block.
2. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 1 by moment of torsion, its feature
It is, described support meanss clamp oil cylinder automatically with top including four threaded spreader bars and two and top clamps oil cylinder automatically
The movable ring flat-plate of connection, described two movable ring flat-plates arrange that each movable ring flat-plate is provided with four confessions, four spiral shells up and down
The hole that line strut passes through, threaded spreader bar is attached through the hole on movable ring flat-plate and using high-strength nut, high by rotating
Strong nut, movable ring flat-plate threadingly dagger short transverse can move up and down.
3. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 2 by moment of torsion, its feature
It is, described screw thread dagger sets elongated thread surface along body of rod length direction, and a circle is installed in four screw thread dagger bottoms
Plate, i.e. plectane are installed on experimental rig bottom, and bottom plectane lower surface uniform intervals are provided with several fixation supports, filled for experiment
Put and be supported in earth's surface or other testing stand surfaces, circumferentially uniform intervals are symmetrical arranged 4 circular holes for bottom plectane border position, supply
Screw thread dagger is fixed by high-strength nut.
4. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 1 by moment of torsion, its feature
Be, it is hollow cylindrical that described top clamps oil cylinder, bottom and clamps oil cylinder automatically automatically, by hollow piston cylinder, in
Empty cylinder barrel forms, and can not be produced relative rotation between each component；Described hollow cylinder barrel is provided with close to thrust beam-end position
The horizontal overhanging edge of a wing, and circumferentially it is provided with a series of round holes, position of opening, size and movable ring in overhanging flange portions
Plate inner ring border position circle hole is consistent, clamps oil cylinder, bottom automatically for top and clamps oil cylinder automatically and is separately fixed at by bolt
Upper and lower movable ring flat-plate inner ring center.
5. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 1 by moment of torsion, its feature
It is, it is annulus tubular structure to clamp the thrust crossbeam that oil cylinder is connected automatically with top, and inner ring surface is provided with interior along short transverse
Concave station rank, inner ring center are provided with rolling cone cylinder；The thrust crossbeam top that oil cylinder is connected is clamped automatically with top to be provided with
Electric rotating machine, electric rotating machine shell are secured by bolts at thrust beam surface upper outer shroud.
6. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 5 by moment of torsion, its feature
It is, described rolling cone cylinder is annulus tubular, in uneven thickness along short transverse；Its top overhangs thrust crossbeam I, rolls
The outer ring outer surface bottom of cone cylinder is provided with evagination step, matches with thrust crossbeam I inner ring surface indent steps, for rolling cone cylinder
Bottom is embedded to be fixed on thrust crossbeam I inner ring surfaces, and both are provided with rolling bearing between contacting surface；Cone cylinder top is rolled to stretch out
Thrust crossbeam I parts, external annular surface are circumferentially arranged to concavo-convex tooth form；Described electric rotating machine rotating shaft bottom is overhanging, over-hang part
It is divided into annulus tubular, inner ring surface is circumferentially arranged to concavo-convex tooth form, and its concave, convex spot size is with rolling cone cylinder top outer shroud table
Face is convex, recessed spot size is consistent, can be coated at electric rotating machine rotating shaft bottom sponson and roll cone cylinder top stretching thrust horizontal stroke
Beam I parts, when electric rotating machine energization axis of rotation, it can drive and roll cone cylinder in thrust crossbeam I inner rotations.
7. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 1 by moment of torsion, its feature
It is, described taper circular groove inner ring surface is provided with 3 raised bar shaped ribs, described fixture block along taper incline direction uniform intervals
Include three pieces altogether, vertically incline direction is slotted provided with bar shaped for outer surface center, in bar shaped fluting size and taper circular groove
Ring surface bar shaped rib size is consistent, and fixture block is placed at taper circular groove inner ring surface bar shaped rib by bar shaped fluting, can be along bar shaped rib
Move up and down.
8. the prestressed anchor club shaft tensile mechanical properties experimental rig acted on as claimed in claim 1 by moment of torsion, its feature
It is, described oil supply system includes servo oil pump, and described top clamps oil cylinder, bottom and clamps oil cylinder automatically automatically to be passed through
It is connected into and out of oil pipe with corresponding servo oil pump, oil pressure sensor is installed in oil cylinder inner wall, installed on thrust crossbeam
There is displacement transducer, torque sensor is installed rolling cone cylinder position, strain sensing is installed on anchor rod body surface to be measured
Device；Described servo oil pump, motor and all kinds of monitoring sensors is connected with central control system, and different designs can be achieved and turn round
Under square and stress distribution, the Validity Test of prestressed anchor club shaft mechanical property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001396.7U CN207114160U (en) | 2017-08-10 | 2017-08-10 | The prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721001396.7U CN207114160U (en) | 2017-08-10 | 2017-08-10 | The prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207114160U true CN207114160U (en) | 2018-03-16 |
Family
ID=61571322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721001396.7U Expired - Fee Related CN207114160U (en) | 2017-08-10 | 2017-08-10 | The prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207114160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987779A (en) * | 2019-12-12 | 2020-04-10 | 燕山大学 | Device for detecting corrosivity intensity of weakly acidic mixed gas |
| CN114293601A (en) * | 2021-12-28 | 2022-04-08 | 扬州大学 | Auxiliary test device |
-
2017
- 2017-08-10 CN CN201721001396.7U patent/CN207114160U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987779A (en) * | 2019-12-12 | 2020-04-10 | 燕山大学 | Device for detecting corrosivity intensity of weakly acidic mixed gas |
| CN110987779B (en) * | 2019-12-12 | 2021-06-04 | 燕山大学 | Device for detecting corrosivity intensity of weakly acidic mixed gas |
| CN114293601A (en) * | 2021-12-28 | 2022-04-08 | 扬州大学 | Auxiliary test device |
| CN114293601B (en) * | 2021-12-28 | 2023-03-14 | 扬州大学 | Auxiliary test device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107300465A (en) | Tension-torsion collective effect lower prestress anchor rod body Mechanics Performance Testing device and method | |
| CN207114160U (en) | The prestressed anchor club shaft tensile mechanical properties experimental rig acted on by moment of torsion | |
| CN101648344B (en) | Eccentric wheel clamping device | |
| CN112683670B (en) | Anchor rod drawing experiment device and detection method thereof | |
| CN107130988B (en) | Liquid carbon dioxide blasting anti-reflection grouting composite anchor rod | |
| CN103590842B (en) | Full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and operation method | |
| CN202787968U (en) | Changeable-angle adjusting type template inclined support | |
| CN207181166U (en) | A kind of anchorage body interface mechanical characteristic test device for considering surrouding rock stress and influenceing | |
| CN107268637A (en) | Pilot system and method for testing high stress environment anchor pole or anchorage cable anchoring interface mechanical characteristic | |
| CN101806151B (en) | Iron tower main material replacing device | |
| CN109798142B (en) | Connectable long anchor rod with yielding function | |
| CN202925767U (en) | Low-retraction pre-stressed anchorage device | |
| CN109972619B (en) | Spiral pile-discharging device applying force by means of ground and pile-discharging method thereof | |
| CN203559916U (en) | Pretightening force applying device for full thread anchor rod capable of quickly unloading anchor | |
| CN105937306A (en) | Apparatus and method for reinforcing column by prestressed fiber sheet | |
| CN105840222A (en) | Push and press type bonding hollow anchor rod capable of being quickly anchored and installed | |
| CN104942107A (en) | Pipe bending machine used for bending oil pipes | |
| CN111307509A (en) | Red bed soft rock undisturbed sample sampling device and sampling method | |
| CN103590843B (en) | A kind of full-thread bolt pretightning force bringing device and method of operating can moving back anchor fast | |
| CN112983519B (en) | High-pretightening-force anchor rod capable of actively and rapidly realizing three-dimensional stress balance and anchoring method thereof | |
| CN209761473U (en) | anti-seismic pressure-limiting anchor rod head | |
| CN106006001A (en) | Automatic feeding device for tubular objects | |
| Yao et al. | Research on stress and strength of high strength reinforced concrete drilling shaft lining in thick top soils | |
| CN206200522U (en) | A kind of screw thread elastic mechanical device of utilization hydraulic-driven | |
| CN206070527U (en) | A kind of easy-to-dismount intermediate plate anchorage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |