CN206270180U - Structural face shear strength dimensional effect array loading tester - Google Patents
Structural face shear strength dimensional effect array loading tester Download PDFInfo
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- CN206270180U CN206270180U CN201621199904.2U CN201621199904U CN206270180U CN 206270180 U CN206270180 U CN 206270180U CN 201621199904 U CN201621199904 U CN 201621199904U CN 206270180 U CN206270180 U CN 206270180U
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Abstract
A kind of structural face shear strength dimensional effect array loading tester, level is arranged on the platform of base of frame to load maintainer, level to support force measuring machine and sample mounting lifting platform, level is to load maintainer and level to support force measuring machine respectively positioned at the both sides of sample mounting lifting platform, multi-scale rock structural fece sample is divided into upper and lower part by boundary of crack, to load maintainer loading positioned at the top of multi-scale rock structural fece sample, level supports the bottom of multi-scale rock structural fece sample to support force measuring machine to level;Plumb load mechanism is located at multi-scale rock structural fece sample top, and Plumb load mechanism is arranged on framework up or down;Level includes at least two tangential actuator to load maintainer, and Plumb load mechanism includes the vertical actuator group of at least two vertical actuator compositions.It is good that the utility model effectively meets the test of multi-scale rock structural fece sample size, reliability under large span load.
Description
Technical field
The utility model is related to a kind of structural face shear strength dimensional effect testing machine.
Background technology
Dimensional effect refers to the phenomenon of certain characteristic change with the size difference of research object of things, is rock mass mechanics
Common a kind of feature in property test.The characteristic that the mechanical property of rock increases and reduces with sample dimensions is not only present in rock
In body tension, resistance to compression, shearing resistance, bullet mould and the rheological equationm of state, and it is also present in structural plane shearing-resistance characteristic.It is the knot of study of rocks
Structure face shearing strength dimensional effect is, it is necessary to complete the test of rock structural face with a dimensional effect test system, it needs to build
It is vertical that direct shear test is carried out under different loads to various sizes of rock structural face sample.
At present specifically designed for the direct shear test research equipment of rock dimensional effect in, it is strong that Du Shigui proposes structural plane shearing resistance
Degree dimensional effect testing machine (CN201410149668.2), multi-scale rock direct shear apparatus (CN201310273743.1), they from
The aspects such as the installation of multi-scale rock sample, transport, component protection and measuring mechanism have carried out structure design.But due to each
There is the limitation of test load and test scope in kind of sensor and each actuator and controller have loaded load scope
Limitation.The requirement of load precision on a large scale can not be very well met using a set of loading system for this.A kind of many sets are developed for this
Mechanism Combination formula structural face shear strength tests extremely important with high-precision staight scissors on a large scale.
The content of the invention
In order to overcome the shearing strength test request that cannot meet multiple dimensioned sample, the reliability of existing direct shear apparatus relatively low
Deficiency, the utility model provide it is a kind of effectively meet the test of multi-scale rock structural fece sample size under large span load,
The good structural face shear strength dimensional effect array loading tester of reliability.
The utility model solves the technical scheme that its technical problem used:
A kind of structural face shear strength dimensional effect array loading tester, including framework, level are to load maintainer, water
Put down to support force measuring machine, Plumb load mechanism and the sample mounting lifting platform for placing multi-scale rock structural fece sample,
The level is arranged on the platform of base of frame to load maintainer, level to support force measuring machine and sample mounting lifting platform,
The level is located at the both sides of sample mounting lifting platform to load maintainer and level respectively to support force measuring machine, described multiple dimensioned
Rock structural face sample is divided into upper and lower part by boundary of crack, and the level is located at multi-scale rock knot to load maintainer loading
Structure interviews the top of sample, and the level supports the bottom of multi-scale rock structural fece sample to support force measuring machine;It is described vertical
Load maintainer is located at multi-scale rock structural fece sample top, and the Plumb load mechanism can up or down be arranged on framework
On;
The level includes at least two tangential actuator to load maintainer, and the Plumb load mechanism includes at least two
The vertical actuator group of individual vertical actuator composition.
Further, the level includes at least two force cells, at least two dynamometry to support force measuring machine
Sensor is arranged up and down.
Further, described Plumb load mechanism include moved cross beam, vertical actuator, chain wheel driving mechanism, motor,
Vertical force cell, turning joint, load plate and way block, the moved cross beam both sides are provided with worm gear, the worm gear outer ring
Be rotatably mounted around in the mounting hole of moved cross beam, four root posts of the framework through worm gear and with the inner ring of the worm gear
Between be rotatably engaged, shaft end of the chain wheel driving mechanism respectively with motor and worm screw is connected, and the worm and wheel is nibbled
Close, the motor is rotated and drives worm gear wheel to cause that moved cross beam is moved up and down along column, and the moved cross beam is set by 2n+
1 actuator group of the actuator composition of centering distribution, n is natural number, is provided with the piston rod of each vertical actuator vertical
To force cell, the vertical force cell other end is connected with turning joint, and the turning joint is connected with load plate,
The load plate bottom is provided with one group of way block.
Preferably, in described Plumb load mechanism, the 2n+1 vertical actuator is distributed in yi word pattern or " X " type.
It is of course also possible to be other centering distribution modes;It is of course also possible to be other distribution modes, such as array etc..
Further, described level includes level to the second force cell, level to support to support force measuring machine
Head, guide post, the first guide holder, the first force cell, the second guide holder, snap ring, supporting cylinder, mounting bracket, guide post,
Linear bearing, jack and base, are divided into three layers, the bottom both sides linear bearing of the mounting bracket on the mounting bracket height
Install four guide posts, in four bottom mounting seats of guide post, centre install jack, the motion end of the jack with
The bottom connection of the mounting bracket;
The intermediate layer of the mounting bracket is provided with the first force cell;
Supporting cylinder is installed, piston rod is fixed to branch fastener with putting down, and is put down to branch fastener on the top layer of the mounting bracket
Supporting cylinder promotion under can as experiment upper back sample reset, while put down to branch fastener front end installing connecting rods for
Second force cell is installed.
Preferably, described putting down installs guide post to branch fastener both sides, and guide post passes through be fixed on mounting bracket first to lead
To seat and the second guide holder, the guide post tail end sets multigroup shaft shoulder, to move to and be enclosed within the with two snap rings after certain position
Two guide holder both sides are used for the spacing of guide post.
The framework includes fixed cross beam, column and platform, and the framework uses four column agencies, the platform and fixation
Four root posts are installed in crossbeam both sides, and the fixed cross beam is located at column top, and platform is located at column lower section, and column top half is
Trapezoidal thread.
Described sample mounting lifting platform includes sample limit base, sample load plate, L-type plate, sample installing plate, tangentially leads
Rail, dolly, two-stage telescopic cylinder, lifting hydraulic cylinder, sample carriage and support bar, the upper and lower two parts difference diagonal form peace of sample
Dress L-type plate, the sample is arranged on sample installing plate and spacing with sample limit base, and tangential guide rail is installed on the dolly,
Sample installing plate on tangential guide rail;The platform side of the framework is provided with sample carriage, and two-stage telescopic cylinder is arranged on flat
Inside platform, branch fastener is installed on two-stage telescopic cylinder piston rod, support bar is installed on branch fastener;The dolly is provided with solid
4 wheels on small-sized short distance hydraulic cylinder are scheduled on, the wheel is moved on the stopper slot along sample carriage both sides, the branch
Strut is connected with dolly, and the motion end of lifting hydraulic cylinder is located at the lower section of dolly and sample installing plate.
Described sample mounting lifting platform also includes backing plate, backing plate thrust hydraulic cylinder, backing plate frame, distance rod, gib block, pad
Plate carriage, lifting platform, guide post and branch fastener, the backing plate according to the set-mounted quantity of specimen size cause sample joint-cutting same
On one height;The platform opposite side of the framework is provided with backing plate carriage, and a backing plate lifting is installed in backing plate carriage the inside
Platform, is provided with backing plate on the backing plate lifting platform, a backing plate thrust hydraulic cylinder, two backing plates are respectively installed in platform opposite side both sides
There is a backing plate frame and fixed with distance rod directly over installed thrust bar on thrust hydraulic cylinder piston rod, backing plate, backing plate frame both sides
It is movably mounted on the gib block on backing plate carriage.
Described level includes tangential motor, screw mandrel, dovetail groove slide unit, tangential actuator, movable plate, solid to cutting mechanism
Frame, level are determined to force cell and cutting head, and the tangential actuator of at least two centerings distribution, institute are installed on the movable plate
State and connected by one group of dovetail groove slide unit between movable plate and fixed mount, the movable plate bottom install screw mandrel mounting seat and with silk
Bar connection, described screw mandrel one end and tangential motor connection;Level is installed on the piston rod of each tangential actuator to be passed to dynamometry
Sensor, level on force cell to being provided with cutting head.
Technology design of the present utility model is:Direct shear apparatus is typically all using a set of Plumb load mechanism and tangential loading machine
Structure, often covers load maintainer and be made up of a hydraulic cylinder and a force cell and one controller of use, due to hydraulic pressure plus
Loading system, force cell have the limitation of test load range and measuring accuracy.When test load range cannot be with a set of
When load maintainer is completed, it is desirable to have cover load maintainer coordination control more and meet loading accuracy and loading demands.For this adds vertical
One group of many set load maintainer of centering distribution is set in mounted mechanism and tangential load maintainer, is adopted according to specimen size and loading demands
The scheme jointly controlled with many set load maintainers, while effectively to cause that the height of sample joint-cutting reaches same height and ensures
The high rigidity requirement of sample its erecting bed in loading, dress is installed using a kind of sample conveying very high of automaticity and backing plate
Put.Effectively to obtain the precision of tangential force, cause to select no force-measuring sensing according to different loads using support force measuring machine
Device.
The utility model has the advantage that:1st, effectively meet on a large scale load similarly hereinafter precision staight scissors test, reliability
Well;2nd, it is adapted to the test request of the multi-scale rock structural fece sample of different size specification.
Brief description of the drawings
Fig. 1 is main view when structural face shear strength dimensional effect array loading tester is big rock structural face sample
Figure.
Fig. 2 is main view when structural face shear strength dimensional effect array loading tester is rocklet structural fece sample
Figure.
Fig. 3 is Plumb load mechanism front view.
Fig. 4 is a kind of Plumb load mechanism actuator installation site top view.
Fig. 5 is the top view of actuator and load plate corresponding relation under a kind of Plumb load mechanism actuator installation site.
Fig. 6 is another Plumb load mechanism's actuator and load plate installation site top view.
Fig. 7 levels are to support force measuring machine front view.
Fig. 8 is framework front view.
Fig. 9 is sample mounting lifting platform front view.
Figure 10 is sample mounting lifting platform right view.
Figure 11 sample mounting lifting platform sample installing plate top views.
Figure 12 is level to load maintainer top view.
Figure 13 is level to load maintainer front view.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
1~Figure 13 of reference picture, a kind of structural face shear strength dimensional effect array loading tester, including framework 3, water
Put down to load maintainer 6, level to support force measuring machine 2, Plumb load mechanism 1 and sample mounting lifting platform 5, the framework 3 is adopted
Four pillar constructions are used, level is arranged on framework 3 to load maintainer 6, level to support force measuring machine 2 and sample mounting lifting platform 5
On the platform 33 of bottom, level is to load maintainer 6 and level to support force measuring machine 2 respectively positioned at sample mounting lifting platform 5
Both sides and be arranged on the bottom of framework 3 the both sides of platform 33.Multi-scale rock structural fece sample 4 is arranged on sample mounting lifting platform 5
On, to the loading of load maintainer 6 positioned at the top of multi-scale rock sample, level supports multiple dimensioned to level to support force measuring machine 2
The bottom of rock structural face sample 4;Plumb load mechanism 1 is located at the top of multi-scale rock structural fece sample 4 and is arranged on framework 3
Column 32 on, while can be moved up and down along column 32.
Described Plumb load mechanism 1 is main by moved cross beam 11, worm gear 12, vertical actuator 13, chain wheel driving mechanism
14th, motor 15, vertical force cell 16, turning joint 17, load plate 18 and way block 19 are constituted.11 liang of the moved cross beam
Side is provided with worm gear 12, and the outer ring of the worm gear 12 is rotatably mounted around in the mounting hole of moved cross beam 11, four root posts of framework 3
32 coordinate through moved cross beam 11 and with the inner ring screw thread of the worm gear 12 of both sides.Chain wheel driving mechanism 14 respectively with motor 15 and snail
The shaft end connection of bar (being not drawn into accompanying drawing), motor 15 is rotated and drives worm and worm wheel 12 to rotate, so that moved cross beam 11
Moved up and down along column.Moved cross beam 11 sets the actuator group that the actuator 13 being distributed by 2n+1 centering is constituted, each
Vertical force cell 16, the other end of vertical force cell 16 and turning joint are installed on the piston rod of vertical actuator 13
17 connections, turning joint 17 is connected with load plate 18, and the bottom of load plate 18 is provided with one group of way block 19.
The actuator 13 of the 2n+1 centering distribution set on the moved cross beam 11 in described Plumb load mechanism 1 can root
It is distributed according to specimen shape, n is natural number, for positive direction sample, can be in moved cross beam 11 middle setting, one start
Device 133, the center with it sets the distribution of " X " type actuator, by taking 9 actuator as an example, actuator 131, actuator as origin
132nd, actuator 133, actuator 138, actuator 139 constitute straight line and actuator 136, actuator 137, actuator 133,
The support that actuator 134, actuator 135 are constituted is installed in the intersection with actuator 133 as origin, corresponding in actuator
Load plate sets as follows:Actuator 131 is matched with load plate 181, and actuator 132 is matched with load plate 182, actuator 133 with
Load plate 183 is matched, and actuator 134 is matched with load plate 184, and actuator 135 is matched with load plate 185, actuator 136 with plus
Support plate 186 is matched, and actuator 137 is matched with load plate 187, and actuator 138 is matched with load plate 188, actuator 139 with loading
Plate 189 is matched.
The actuator 13 of the 2n+1 centering distribution set on the moved cross beam 11 in described Plumb load mechanism 1 also may be used
Straight line is installed, and n is natural number, such as, to install the actuator 140 of row's straight line installation on moved cross beam 11, actuator 141 is made
Dynamic device 142, actuator 143, actuator 144, respectively corresponding load plate be load plate 190, load plate 191, load plate 192,
Load plate 193, load plate 194.It is of course also possible to be other centering distribution modes;It is of course also possible to be other distribution modes,
Such as array etc..
Described level to support force measuring machine 2 it is main from level to the second force cell 20, level to branch fastener 21,
Guide post 22, the first guide holder 23, the first force cell 24, the second guide holder 25, snap ring 26, supporting cylinder 27, installation
Frame 28, guide post 29, linear bearing 201, jack 202, base 203 are constituted.It is divided into three layers, mounting bracket on the height of mounting bracket 28
Four guide posts 29 are installed in 28 bottom both sides with linear bearing 201, in four bottom mounting seats 203 of guide post 29, in
Between jack 30 is installed, mounting bracket 28 can move up and down on four guide posts 29 by jack 30.The centre of mounting bracket 28
Layer is provided with the first force cell 24.Supporting cylinder 27 is installed on the top layer of mounting bracket 28, piston rod with put down to support
It is first 21 fix, put down to branch fastener 21 supporting cylinder 27 promotion under can as experiment upper back sample reset, while put down to
The front end of branch fastener 21 can installing connecting rods for install the second force cell 20.Put down and guide post is installed to the both sides of branch fastener 21
22, guide post 22 passes through the first guide holder 23 and the second guide holder 25 being fixed on mounting bracket 28.The tail end of guide post 22 is set
Multigroup shaft shoulder, the both sides of the second guide holder 25 are enclosed within for the limit to guide post 22 after moving to certain position with two snap rings 26
Position.
The framework 3 includes crossbeam 31, column 32 and platform 33.The framework 3 uses four column agencies, platform 33 and horizontal stroke
4 root posts 32 are installed in the both sides of beam 31, and crossbeam 31 is located at the top of column 11, and platform 33 is located at the lower section of column 32, the first half of column 32
It is divided into trapezoidal thread.
Described sample mounting lifting platform 5 is main to be installed by sample limit base 50, sample load plate 51, L-type plate 52, sample
Plate 53, tangential guide rail 54, dolly 55, backing plate 56, two-stage telescopic cylinder 57, lifting hydraulic cylinder 58, sample carriage 59, support bar
70th, gag lever post 71, displacement transducer and mounting seat 72, backing plate thrust hydraulic cylinder 73, backing plate frame 74, distance rod 75, gib block 76,
Backing plate carriage 77, backing plate lifting platform 78, guide post 79 and branch fastener 80, the upper and lower two parts difference diagonal form of sample install L-type
Plate 52, it is on sample installing plate 53 and spacing with sample limit base 50, a number of tangential guide rail is installed on dolly 55
54, sample installing plate 53 on tangential guide rail 54.Installing a number of backing plate 56 according to specimen size causes the joint-cutting of sample 4 same
On one height.The side of platform 33 is provided with sample carriage 59, and two-stage telescopic cylinder 57 is arranged on inside platform 33, and two grades are stretched
Branch fastener 80 is installed on the piston rod of oil cylinder 57, support bar 70 is installed on branch fastener 80.Dolly 55 be provided be fixed on it is small-sized
4 wheels on short distance hydraulic cylinder, can be along moving on the stopper slot of the both sides of sample carriage 59, and support bar 70 can be with dolly 55
Connection, promotes dolly 55 to move in the presence of two-stage telescopic cylinder 57.Lifting hydraulic cylinder 58 can by dolly 55 and above examination
Sample rises.The opposite side of platform 33 is provided with backing plate carriage 77, and a backing plate lifting platform 78, pad are installed in the inside of backing plate carriage 77
Backing plate 56 is installed, a backing plate thrust hydraulic cylinder 73, two backing plates are respectively installed in the opposite side both sides of platform 33 on plate lifting platform 78
Installed thrust bar 75 on the piston rod of thrust hydraulic cylinder 73, has a backing plate frame 74 and is fixed with distance rod 75 directly over backing plate 56,
The both sides of backing plate frame 74 can move along the gib block 76 being fixed on backing plate carriage 77.
Described level is main by tangential motor 61, screw mandrel 62, dovetail groove slide unit 63, tangential actuator to cutting mechanism
64th, movable plate 65, fixed mount 66, level are constituted to force cell 67 and cutting head 68.One group of centering is installed on movable plate 65
The tangential actuator 64 of distribution, is connected, the bottom of movable plate 65 between movable plate 65 and fixed mount 66 by one group of dovetail groove slide unit 63
Portion installs screw mandrel mounting seat and is connected with screw mandrel 62, and screw mandrel one end is connected with motor 61.Motor 61 is rotated and drives movable plate 65 left
Move right.Level is installed to force cell 67 on the piston rod of each tangential actuator 64, level is to force cell 67
On cutting head 68 is installed.
The course of work of the present embodiment is as follows:
Dolly 55 is provided with 4 wheels, can be moved along the stopper slot of the both sides of sample carriage 59, and the top of dolly 55 is laid
There are L-type plate 52, tangential guide rail 54 and sample installing plate 53, the upper and lower two parts difference diagonal form of sample installs L-type plate 52, reference picture
9, row's stopper slot and location hole are provided with sample installing plate 53, after sample and L-type plate are placed on sample installing plate 53
Right side limiting plate latched position, along being fixed after groove compression sample, sample load plate 51 is placed in left side sample limit base 50
On sample on the L-type plate 52 of part.Two-stage telescopic cylinder 57 is retracted so that support bar 70 to be shifted onto the platform 33 of framework 3 by dolly 55
On, the wheel on dolly 55 is retracted.By the jack-up of dolly 55 to certain altitude, (joint-cutting of sample is in certain to four lifting hydraulic cylinders 58
Individual height), according to the size of sample, lifting platform 78 lifts a number of backing plate 56 and passes through needed for backing plate frame 74 reaches
Highly, backing plate thrust hydraulic cylinder 73 is retracted and is transported to by distance rod 75 by backing plate frame 74 and through the backing plate 56 of backing plate frame 74
The underface of dolly 55.Four lifting hydraulic cylinders 58 decline the surface for dolly bottom is nestled up the top backing plate 56.Four
The piston rod of individual lifting hydraulic cylinder 58 is then fully retracted to initial position.
Required according to sample loaded load, level selects corresponding force cell to support force measuring machine 2, when being bulk specimen
The first force cell 24 is used during big load, the height of the first force cell 24 is adjusted by jack 202 and support is installed
Bar.The second force cell 20 is selected when being small sample, second dynamometry is installed after level installs support bar to branch fastener 21
Sensor 20, supporting cylinder 27 stretches out and blocks guide post position with snap ring 26 afterwards in place.So that lower sample side is surveyed
Force snesor withstands setup test.
Size and load according to sample select a number of Plumb load actuator and load plate to be loaded, and load
Connected to prevent sample load plate 51 from dropping by a tightrope long between preceding sample load plate 51 and load plate 18.When one group vertical
After loading actuator is loaded into setting load, a number of tangential loading actuator 64 of selection selection and cutting head 68 are added
Carry.After being completed, stretched out by screw-driven installed in the end of gag lever post 71 in the left side of sample installing plate 53 and withstand fixation
Frame 66 is moved with preventing sample installing plate 53.If bulk specimen level to support force measuring machine 2 supporting cylinder 27 and
Sample is returned to initial position by level to branch fastener 21, if small sample can be return using artificial and aid,
Off-test.
Claims (10)
1. a kind of structural face shear strength dimensional effect array loading tester, it is characterised in that:Including framework, level to plus
Mounted mechanism, level are pacified to support force measuring machine, Plumb load mechanism and for placing the sample of multi-scale rock structural fece sample
Dress lifting platform, the level is arranged on base of frame to load maintainer, level to support force measuring machine and sample mounting lifting platform
Platform on, the level to load maintainer and level to support force measuring machine respectively positioned at the both sides of sample mounting lifting platform,
The multi-scale rock structural fece sample is divided into upper and lower part by boundary of crack, and the level is located at many to load maintainer loading
The top of yardstick rock structural face sample, the level is under support force measuring machine support multi-scale rock structural fece sample
Portion;The Plumb load mechanism is located at multi-scale rock structural fece sample top, and the Plumb load mechanism can be up or down
On framework;
The level includes at least two tangential actuator to load maintainer, and the Plumb load mechanism includes that at least two is vertical
The vertical actuator group of actuator composition.
2. structural face shear strength dimensional effect array loading tester as claimed in claim 1, it is characterised in that:It is described
Level includes at least two force cells to support force measuring machine, and at least two force cell is arranged up and down.
3. structural face shear strength dimensional effect array loading tester as claimed in claim 1 or 2, it is characterised in that:
Described Plumb load mechanism includes moved cross beam, vertical actuator, chain wheel driving mechanism, motor, vertical force cell, work
Movable joint, load plate and way block, the moved cross beam both sides are provided with worm gear, and the worm gear outer ring is rotatably mounted around activity
In the mounting hole of crossbeam, through worm gear and with the worm gear inner ring, screw thread coordinates four root posts of the framework, the chain
Shaft end of the wheel drive mechanism respectively with motor and worm screw is connected, and the worm and wheel engagement, the motor is rotated and drives worm gear
Rotate and cause that moved cross beam is moved up and down along column, the moved cross beam sets the actuator being distributed by 2n+1 centering and constitutes
Actuator group, n is natural number, and vertical force cell, the vertical survey are provided with the piston rod of each vertical actuator
The force snesor other end is connected with turning joint, and the turning joint is connected with load plate, and the load plate bottom is provided with one
Group way block.
4. structural face shear strength dimensional effect array loading tester as claimed in claim 3, it is characterised in that:It is described
Plumb load mechanism in, the 2n+1 vertical actuator is distributed in yi word pattern or " X " type.
5. structural face shear strength dimensional effect array loading tester as claimed in claim 2, it is characterised in that:It is described
Level to support force measuring machine include level to the second force cell, level to branch fastener, guide post, the first guide holder,
First force cell, the second guide holder, snap ring, supporting cylinder, mounting bracket, guide post, linear bearing, very heavy top and bottom
Seat, is divided into three layers on the mounting bracket height, four guide posts, four are installed in the bottom both sides of the mounting bracket with linear bearing
In the bottom mounting seat of guide post, jack is installed in centre, and the motion end of the jack connects with the bottom of the mounting bracket
Connect;
The intermediate layer of the mounting bracket is provided with the first force cell;
Supporting cylinder is installed, piston rod is fixed to branch fastener with putting down, and is put down to branch fastener in branch on the top layer of the mounting bracket
Can be as the reset of experiment upper back sample, while putting down to branch fastener front end installing connecting rods for installing under support Hydraulic Cylinder
Second force cell.
6. structural face shear strength dimensional effect array loading tester as claimed in claim 5, it is characterised in that:It is described
Put down and guide post is installed to branch fastener both sides, guide post passes through the first guide holder and the second guide holder being fixed on mounting bracket, institute
State guide post tail end and multigroup shaft shoulder is set, the second guide holder both sides are enclosed within for leading with two snap rings after moving to certain position
To the spacing of bar.
7. structural face shear strength dimensional effect array loading tester as claimed in claim 1 or 2, it is characterised in that:
The framework includes fixed cross beam, column and platform, and the framework uses four column agencies, the platform and fixed cross beam both sides
Four root posts are installed, the fixed cross beam is located at column top, and platform is located at column lower section, and column top half is trapezoidal spiral shell
Line.
8. structural face shear strength dimensional effect array loading tester as claimed in claim 1 or 2, it is characterised in that:
Described sample mounting lifting platform include sample limit base, sample load plate, L-type plate, sample installing plate, tangential guide rail, dolly,
Two-stage telescopic cylinder, lifting hydraulic cylinder, sample carriage and support bar, the upper and lower two parts difference diagonal form of sample install L-type plate,
The sample is arranged on sample installing plate and spacing with sample limit base, and tangential guide rail, tangential guide rail are installed on the dolly
Upper sample installing plate;The platform side of the framework is provided with sample carriage, and two-stage telescopic cylinder is arranged on platform interior, two
Branch fastener is installed on level telescopic oil cylinder piston rod, support bar is installed on branch fastener;The dolly be provided be fixed on it is small-sized
4 wheels on short distance hydraulic cylinder, the wheel is moved on the stopper slot along sample carriage both sides, the support bar with it is small
Car is connected, and the motion end of lifting hydraulic cylinder is located at the lower section of dolly and sample installing plate.
9. structural face shear strength dimensional effect array loading tester as claimed in claim 8, it is characterised in that:It is described
Sample mounting lifting platform also include backing plate, backing plate thrust hydraulic cylinder, backing plate frame, distance rod, gib block, backing plate carriage, rise
Drop platform, guide post and branch fastener, the backing plate according to the set-mounted quantity of specimen size cause sample joint-cutting on sustained height;Institute
The platform opposite side for stating framework is provided with backing plate carriage, and a backing plate lifting platform, the backing plate are installed in backing plate carriage the inside
Backing plate is installed, a backing plate thrust hydraulic cylinder, two backing plate thrust hydraulic cylinders are respectively installed in platform opposite side both sides on lifting platform
There is a backing plate frame and fixed with distance rod directly over installed thrust bar on piston rod, backing plate, backing plate frame both sides removable installation
On gib block on backing plate carriage.
10. structural face shear strength dimensional effect array loading tester as claimed in claim 1 or 2, it is characterised in that:
Described level includes tangential motor, screw mandrel, dovetail groove slide unit, tangential actuator, movable plate, fixed mount, water to cutting mechanism
Put down to force cell and cutting head, the tangential actuator of at least two centerings distribution, the movement are installed on the movable plate
Connected by one group of dovetail groove slide unit between plate and fixed mount, the movable plate bottom is installed screw mandrel mounting seat and connected with screw mandrel
Connect, described screw mandrel one end and tangential motor connection;Level is installed to force cell on the piston rod of each tangential actuator,
Level on force cell to being provided with cutting head.
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CN110470549A (en) * | 2019-07-25 | 2019-11-19 | 绍兴文理学院 | Anchor structure face shearing strength dimensional effect pilot system |
CN110553935A (en) * | 2019-10-16 | 2019-12-10 | 浙江科技学院 | dynamic punching joint cutting method |
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