CN206772728U - Electronic strain-type is without confining pressure instrument - Google Patents
Electronic strain-type is without confining pressure instrument Download PDFInfo
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- CN206772728U CN206772728U CN201720503955.8U CN201720503955U CN206772728U CN 206772728 U CN206772728 U CN 206772728U CN 201720503955 U CN201720503955 U CN 201720503955U CN 206772728 U CN206772728 U CN 206772728U
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- gear
- worm
- worm screw
- screw
- worm gear
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a kind of electronic strain-type without confining pressure instrument, including base, support bar is provided with the base, the support bar is connected with the measurement apparatus for measuring pressure value jointly, the base corresponds to the elevating mechanism being provided with below measurement apparatus for extruding testee, the rotation worm gear for driving elevating mechanism to work is provided with below the elevating mechanism, the rotation worm gear both sides are provided with two worm screws, and the drive device for driving worm screw to be engaged with rotating worm gear is provided with two worm screws.The utility model has the advantages that：This electronic strain-type can reduce the frequency of use of gear without confining pressure instrument, so that gear wear mitigates, extend the service life of gear.
Description
Technical field
Building pressure test device is the utility model is related to, more particularly to a kind of electronic strain-type is without confining pressure instrument.
Background technology
Electronic strain-type is a kind of experimental rig without confining pressure instrument, for determining the larger soft clay of saturation degree lateral
Suffered axial compressive force, force value suffered when sample breakage, can try to achieve soft clay under conditions of unrestricted
Unconfined compressive strength.
Publication No. CN206038448U Chinese patent discloses a kind of strain controlling formula unconfined compression strength test
Device.This experimental rig includes the cabinet for being provided with motor and gear, and the output shaft of motor passes through gear and lifting spiral shell
Bar is rotatably connected, and lifting controller is connected by wire with motor, for controlling the automatic lifting of lifting screw.Cabinet side
Handwheel is provided with, handwheel is rotatably connected also by gear with lifting screw, for controlling lifting screw lifting manually.Lifting screw
Top is fixedly connected with increased pressure board.
But above-mentioned motor controls with handwheel and is connected same root lifting screw simultaneously, motor or handwheel sliding tooth
Wheel rotates, so as to drive lifting screw to lift.It is required to during the lifting of above-mentioned driving lifting screw by gear and lifting screw
The lifting of engagement driving lifting screw, gear frequency of use is higher, causes gear wear more serious, may cause gear with rising
Engaged gears failure is dropped.
Utility model content
The purpose of this utility model is to provide a kind of electronic strain-type without confining pressure instrument.This electronic strain-type is without lateral spacing
Instrument for Pressure can reduce the frequency of use of gear, so that gear wear mitigates, extend the service life of gear.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of electronic strain-type without
Confining pressure instrument, including base, support bar is provided with the base, and the support bar is connected with for measuring number pressure jointly
The measurement apparatus of value, the base corresponds to the elevating mechanism being provided with below measurement apparatus for extruding testee, described
The rotation worm gear for driving elevating mechanism to work is provided with below elevating mechanism, the rotation worm gear both sides are provided with two snails
Bar, the drive device for driving worm screw to be engaged with rotating worm gear is provided with two worm screws.
After above-mentioned technical proposal, testee is placed on elevating mechanism, then will using drive device
Worm screw is moved to be engaged with rotating worm gear.Worm gear is rotated by manpower so that rotate worm gear and drive elevating mechanism to rise.Rise
Descending mechanism, which rises, drives testee to rise, and testee rises and causes testee to be measured device and elevating mechanism extruding
Until rupture, measures fracture pressure.Afterwards, another worm screw is moved to using drive device and engaged with rotating worm gear, by before
A piece worm screw is moved to no longer to be engaged with rotating worm gear.Worm gear wheel is moved by another worm screw rotational band turn, so that
Elevating mechanism declines.Testee is no longer extruded in the presence of elevating mechanism by elevating mechanism and measurement apparatus, by measured object
Body reclaims from elevating mechanism.Said process realizes the rise and fall of elevating mechanism by two worm screws, it is achieved thereby that
Worm screw is reduced with rotating the abrasion of worm gear, so as to the service life for extending worm screw with rotating worm gear.
The utility model is further arranged to：The elevating mechanism includes lifter plate, and the lifter plate is fixedly connected spacing
Bar, the interior sliding of the gag lever post are connected with fixing axle, and described fixing axle one end is fixedly connected with base, lifter plate bottom spiral shell
Line is connected with screw mandrel, and the screw mandrel, which is fixedly sheathed in, to be rotated outside worm gear.
After above-mentioned technical proposal, worm gear wheel is rotated, drives screw mandrel to rotate.Screw mandrel, which rotates, drives lifter plate to turn
It is dynamic.Due to the gag lever post on lifter plate by fixing axle limit and can not rotate so that lifter plate with screw mandrel rotate and only
Can in the vertical direction sliding.Said process realizes the purpose that lifter plate slides up and down in the presence of worm gear is rotated.Pass through
The effect of screw mandrel so that lifter plate rises the distance of a tooth when screw mandrel rotates a circle, so as to slow down the sliding of lifter plate speed
Degree.Lifter plate lifting speed is advantageous to test out at accurate location when testee is pressed down slowly, improves the accuracy of measurement.
The utility model is further arranged to：The drive device includes movable case, and the worm screw passes through bearing and movement
Case connects, and described worm screw one end is fixedly connected with handwheel, and the opening position that the base corresponds to worm screw is provided with shifting chute, the shifting
Dynamic case has been wholely set hand lever, and cluster gear is provided with the hand lever, and the cluster gear is engaged with master gear, the main tooth
Wheel is engaged with rack.
After above-mentioned technical proposal, it can realize that worm screw rotates by rotating handwheel, so as to drive rotation worm gear
Rotate, finally lifter plate is moved up and down.Slid by the way that worm screw is moved along into groove so that hand lever moves.Hand lever moves
It is dynamic to drive cluster gear movement, drive master gear to rotate.Master gear rotation driven gear bar moves.Said process is realized with hand
The worm screw of wheel is with rotating the engagement of worm gear or separating.
The utility model is further arranged to：The rack other end is engaged with pinion, and the pinion is engaged with
Automatic pole, the automatic pole have been wholely set drive case, and the drive case is connected with another worm screw, the worm screw by bearing
It is connected with electric device.
After above-mentioned technical proposal, rack movement drive pinion rotate, so as to drive automatic pole along with
Move identical distance in hand lever identical direction.Automatic pole movement drives case movement, so as to drive another worm screw to move
Move to rotating worm gear and engage.Driven by electric device and rotate worm gear wheel, so as to drive elevating mechanism to rise measurement by side
The fracture pressure of object.Said process realizes the movement by rack, drive the worm screw with electric device be moved to
Worm gear engagement is rotated, reduces the abrasion of the worm screw with handwheel, worm screw is integrally extended and rotates the service life of worm gear.
The utility model is further arranged to：The electric device includes driving worm gear, and the driving worm gear is engaged with drive
Dynamic worm screw, the driving worm screw are fixedly connected with motor.
After above-mentioned technical proposal, electric motor starting drives driving worm screw to rotate.Drive worm screw to rotate and drive driving
Worm gear wheel, so as to drive worm screw to rotate.Worm screw rotational band turn moves worm gear wheel, so as to drive lifter plate to rise.By setting
Put driving worm screw and driving worm gear so that motor driven driving worm screw rotates an axle, and driving worm gear moves a tooth so that lifting
The plate rate of climb slows down so that testee fracture position is easier to be determined, more accurately determine fracture position with
Fracture pressure.
The utility model is further arranged to：The rack is arranged to dovetail bulk.
After above-mentioned technical proposal, by the way that rack is arranged into dovetail bulk so that rack is in movement
It will not shake, the stability of increase rack movement.
In summary, the utility model has the advantages that：
By setting two worm screws, a worm screw carries handwheel, another worm screw driving electric device.Above-mentioned setting causes
Lifter plate is driven when rising by electric device, is again moved down lifter plate by rotating handwheel during by testee pressure break, then
Testee on lifter plate is removed from lifter plate.Said process causes abrasion of the worm screw with rotating worm gear to reduce, so as to
Extend worm screw with rotating the service life of worm gear.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment；
Fig. 2 is that the base of embodiment removes the structural representation of a side；
Fig. 3 is the right view of embodiment；
Fig. 4 is the screw mandrel of embodiment and the part connection relationship diagram with screw mandrel linkage；
Fig. 5 is the screw mandrel of embodiment and the part annexation top view with screw mandrel linkage.
Reference：1st, base；2nd, support bar；3rd, crossbeam；4th, fixed plate；5th, location-plate；6th, measure one's own ability ring；7th, dial gauge；
8th, increased pressure board；9th, lifter plate；10th, screw mandrel；11st, worm gear is rotated；12nd, bearing block；13rd, fixing axle；14th, shifting chute；15th, it is spacing
Bar；16th, chute；17th, manual worm；18th, handwheel；19th, movable case；20th, hand lever；21st, cluster gear；22nd, master gear；23rd, tooth
Take turns bar；24th, pinion；25th, automatic pole；26th, case is driven；27th, electronic worm screw；28th, worm gear is driven；29th, worm screw is driven；30th, it is electric
Machine；31st, control button.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
As shown in figure 1, a kind of electronic strain-type is without confining pressure instrument, including base 1.Base 1 is fixedly connected with two branch
Strut 2, two support bars 2 are fixedly connected with the crossbeam 3 for being parallel to base 1.The middle part of crossbeam 3 is provided with fixed plate 4, fixed plate 4
It has been bolted location-plate 5.Ring 6 of measuring one's own ability is placed between fixed plate 4 and location-plate 5.Percentage is provided with the shape of ring 6 of measuring one's own ability
Table 7.Dial gauge 7 is used to read sample by data during breakage, in order to the calculating of follow-up axial stress.
As shown in Fig. 2 the one end of dial gauge 7 is fixedly connected with location-plate 5, the other end, which abuts, increased pressure board 8.Increased pressure board 8 with
Ring 6 of measuring one's own ability abuts.Opening position corresponding with increased pressure board is provided with base 1 and is provided with lifter plate 9.Lifter plate 9, which is used to place, to be tried
Sample.Increased pressure board 8 needs same lifter plate 9 to be used cooperatively, for damaged sample.One end of sample abuts with lifter plate 9, works as lifter plate
9 constantly move towards the direction of increased pressure board 8（Rise）When, sample is constantly close to increased pressure board 8, until the other end of sample is with adding
Pressing plate 8 is abutted, and the numerical value of dial gauge 7 is adjusted into zero point, continues to rise with after lifting plate 9, until sample is damaged, now reads hundred
Divide the data shown by table 7, compare load-deformation curve, the axial stress of sample can be calculated, finally by lifter plate 9
It is lowered back to initial position.
As shown in Figure 2,4, lifter plate 9 is fixedly connected with the lifting structure lifted for realizing lifter plate 9.Lifting structure bag
Include the screw mandrel 10 coordinated with the screw thread of lifter plate 9.The middle part of screw mandrel 10, which is fixedly connected with, rotates worm gear 11, real by rotating worm gear 11
The rotation of existing screw mandrel 10.The fixed cover of screw mandrel 10 is connected to bearing block 12, and the axial movement of screw mandrel 10 is limited with this.The bottom of lifter plate 9
Abutting has two parallel fixing axles 13, and the other end of fixing axle 13 is fixedly connected with base 1, and gag lever post is socketed with outside fixing axle 13
15.The one end of gag lever post 15 is fixedly connected with lifter plate 9, and the other end abuts with base 1.Fixing axle 13 can be slided in gag lever post 15
Move.When screw mandrel 10 rotates, lifter plate 9 has the trend rotated with screw mandrel 10, but because two fixing axles 13 can only be spacing
Slid in bar 15, limit the rotation of lifter plate 9, therefore lifter plate 9 can only be along the axial movement of screw mandrel 10, and then make placement
Sample on lifter plate 9 is more stable, is not easy to drop.
As shown in Figure 2, Figure 3, Figure 4, the side of base 1 is provided with shifting chute 14.Manual worm is equipped with shifting chute 14
17.When manual worm 17 cooperates with rotating worm gear 11, it can be driven by rotation manual worm screw 17 and rotate 11 turns of worm gear
It is dynamic, and then drive screw mandrel 10 to rotate.Manual worm 17 is fixedly connected with handwheel 18.Staff is by rotating handwheel 18, manually
Worm screw 17 rotates, and then realizes the lifting of lifter plate 9.
As shown in Figure 4, Figure 5, manual worm 17 is connected with movable case 19 by bearing, and base 1 is interior relative to movable case 19
Opening position be provided with chute 16, movable case 19 can only be slid by limitation in chute 16.Mobile manual worm 17 so that mobile
Case 19 is moved with the position of manual worm 17.The side of movable case 19 is fixedly connected with hand lever 20, when movable case 19
It will be moved when mobile with manual lever 20.The side of hand lever 20 is provided with cluster gear 21, and cluster gear 21 is engaged with master gear 22.
When hand lever 20 moves, cluster gear 21 drives master gear 22 to rotate with movement.Master gear 22 is combined with rack
23, therefore the rotation of master gear 22 will drive rack 23 to translate.It is block-shaped that rack 23 is arranged to dovetail, can be effective
Ground prevents rack 23 from, when rotating drive movement by master gear 22, will not teetertotter, ensure that rack 23 is steady
Move horizontally.The one end of rack 23 away from master gear 22 is engaged with pinion 24, and pinion 24 is combined with automatic pole 25 again.
The one end of automatic pole 25 is connected with by bearing and drives case 26.Manual worm 17 is set to be abutted with the second arcwall face 16 in mobile handwheel 18
During, manual worm 17 drives movable case 19 to move, and now hand lever 20 moves, and rotates master gear 22, and then drives
The opposite direction of rack 23 moves.The movement of rack 23, the rotation of pinion 24 is driven, and then drive automatic pole 25 along rack
23 opposite directions move, and translate drive case 26.
As shown in Figure 1, shown in Figure 5, case 26 is driven to be equipped with electronic worm screw 27.The middle part of electronic worm screw 27 is with rotating the phase of worm gear 11
Mutually coordinate.The one end of electronic worm screw 27 away from drive case 26 is fixedly connected with driving worm gear 28.Driving worm gear 28 is engaged with driving
Worm screw 29, driving worm screw 29 one end are fixedly connected with motor 30.Base 1 is provided with control button 31 in the outside of motor 30.When
When driving worm gear 28 is moved to position corresponding to driving worm screw 29, if engaged between driving worm gear 28 and driving worm screw 29, fortune
Row motor 30, driving worm screw 29 is rotated, drive driving worm gear 28 to rotate, and then driving electric worm screw 27 rotates.If drive snail
When tooth between wheel 28 and driving worm screw 29 abuts, a motor 30 is first instantaneously run so that driving worm gear 28 and driving worm screw
29 engagements.Now the electronic middle part of worm screw 27 is engaged with rotating worm gear 11, therefore drives rotation worm gear 11 to rotate.
The course of work：
Sample is placed on lifter plate 9, by rotating clockwise handwheel 18, rotates manual worm 17, and then is driven
Worm gear 11 is rotated to rotate.Now, screw mandrel 10 rotates, and lifter plate 9 just moves along the axial direction of screw mandrel 10, drives sample to add toward close
The direction movement of pressing plate 8.When the reading of dial gauge 7 is slightly larger than 0, at 0.1 or so, stop operating handwheel 18, while by handwheel
18 move horizontally.During manual worm 17 moves, the movable case 19 being socketed with manual worm 17 is with the water of manual lever 20
Translation is dynamic.Now, master gear 22 rotates, and drives rack 23 to be moved along the opposite direction with the moving direction of hand lever 20.Rack
23 drive pinions 24 rotate, and then drive automatic pole 25 to move, and drive case 26 is moved to close to the direction of screw mandrel 10.This
When, electronic worm screw 27 engages with rotating worm gear 11, while drives worm gear 28 to be moved to the position to be cooperated with driving worm screw 29.
At this moment, staff presses control button 31 and runs motor 30, rotates driving worm screw 29 and drives driving worm gear 28 to rotate, and then
Driving electric worm screw 27 rotates, and makes lifter plate 9 continue to move to close to the direction of increased pressure board 8.When observing sample breakage, immediately
The number of degrees of dial gauge 7 are recorded, and pressing control button 31 makes motor 30 out of service.The now data shown by dial gauge 7 are right
Correlate force-strain curve, the axial stress of sample can be calculated.Lifter plate 9 is finally lowered back to initial position.
Claims (6)
1. without confining pressure instrument, including base (1), support bar (2), institute are provided with the base (1) for a kind of electronic strain-type
State support bar (2) and be connected with measurement apparatus for measuring pressure value, the lower section of the corresponding measurement apparatus of the base (1) jointly
The elevating mechanism for extruding testee is provided with, it is characterized in that：It is provided with below the elevating mechanism for driving lifting
The rotation worm gear (11) of mechanism work, described rotation worm gear (11) both sides are provided with two worm screws, set on two worm screws
There is the drive device for driving worm screw (29) to be engaged with rotating worm gear (11).
2. electronic strain-type according to claim 1 is without confining pressure instrument, it is characterized in that：The elevating mechanism includes lifting
Plate (9), the lifter plate (9) are fixedly connected with gag lever post (15), are slid in the gag lever post (15) and be connected with fixing axle (13), institute
State fixing axle (13) one end to be fixedly connected with base (1), lifter plate (9) bottom thread is connected with screw mandrel (10), the silk
Bar (10), which is fixedly sheathed in, rotates worm gear (11) outside.
3. electronic strain-type according to claim 1 is without confining pressure instrument, it is characterized in that：The drive device includes movement
Case (19), the worm screw are connected by bearing with movable case (19), and described worm screw one end is fixedly connected with handwheel (18), the bottom
The opening position of the corresponding worm screw of seat (1) is provided with shifting chute (14), and the movable case (19) has been wholely set hand lever (20), described
Cluster gear (21) is provided with hand lever (20), the cluster gear (21) is engaged with master gear (22), and the master gear (22) is nibbled
Conjunction has rack (23).
4. electronic strain-type according to claim 3 is without confining pressure instrument, it is characterized in that：Rack (23) other end
Pinion (24) is engaged with, the pinion (24) is engaged with automatic pole (25), and the automatic pole (25) has been wholely set drive
Case (26), the drive case (26) are connected with another worm screw by bearing, and the worm screw is connected with electric device.
5. electronic strain-type according to claim 4 is without confining pressure instrument, it is characterized in that：The electric device includes driving
Worm gear (28), the driving worm gear (28) are engaged with driving worm screw (29), and the driving worm screw (29) is fixedly connected with motor
(30)。
6. electronic strain-type according to claim 3 is without confining pressure instrument, it is characterized in that：The rack (23) is arranged to
Dovetail is block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503955.8U CN206772728U (en) | 2017-05-08 | 2017-05-08 | Electronic strain-type is without confining pressure instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503955.8U CN206772728U (en) | 2017-05-08 | 2017-05-08 | Electronic strain-type is without confining pressure instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206772728U true CN206772728U (en) | 2017-12-19 |
Family
ID=60650143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720503955.8U Expired - Fee Related CN206772728U (en) | 2017-05-08 | 2017-05-08 | Electronic strain-type is without confining pressure instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206772728U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489823A (en) * | 2018-03-30 | 2018-09-04 | 青岛理工大学 | Strain control type low-temperature unconfined compression instrument |
| CN109708970A (en) * | 2019-02-27 | 2019-05-03 | 西安建筑科技大学 | A kind of rock indentation test instrument |
-
2017
- 2017-05-08 CN CN201720503955.8U patent/CN206772728U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489823A (en) * | 2018-03-30 | 2018-09-04 | 青岛理工大学 | Strain control type low-temperature unconfined compression instrument |
| CN109708970A (en) * | 2019-02-27 | 2019-05-03 | 西安建筑科技大学 | A kind of rock indentation test instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171219 Termination date: 20200508 |
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| CF01 | Termination of patent right due to non-payment of annual fee |