CN204359616U - The strain such as novel two-wheel direct shear apparatus - Google Patents
The strain such as novel two-wheel direct shear apparatus Download PDFInfo
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- CN204359616U CN204359616U CN201520048661.1U CN201520048661U CN204359616U CN 204359616 U CN204359616 U CN 204359616U CN 201520048661 U CN201520048661 U CN 201520048661U CN 204359616 U CN204359616 U CN 204359616U
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- handwheel
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- strain
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- 230000001737 promoting effect Effects 0.000 claims abstract description 12
- 238000013519 translation Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000002474 experimental method Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model discloses the strain direct shear apparatuses such as a kind of novel two-wheel, comprise support and be arranged on Level Promoting base device, vertically loading system, down cut box and the vertical movement dial gauge on support, down cut box is provided with shear box, and the front end of upper shear box connects with the measuring junction of vertical movement dial gauge; Described Level Promoting base device comprises the pushing block be connected with down cut box, and handwheel is connected with pushing block by gear train, drives pushing block translation, pushing block is provided with vertical deformation dial gauge; Described vertical loading system comprises the loading framework be connected with upper shear box, below support, correspond to handwheel have additional linkage, the drive end of linkage is connected by the handwheel of belt wheel mechanism with Level Promoting base device, and the output terminal of link gear is connected with the loading framework of vertical loading system.The utility model ensure that load bar in whole shear test process is applied to, and shear box is Vertical Load all the time, obtains soil classifiction experiment value more accurate.
Description
Technical field
The utility model relates to engineering geology geotechnique detection technique field, is specifically related to the strain direct shear apparatuses such as a kind of novel two-wheel.
Background technology
In engineering geology soil test, usual application engineering geological mapping geotechnique laboratory experiment measures the shear stress of soil, and calculates soil classifiction (internalfrictionangleφ and cohesion force C) according to Coulomb law.Deng a kind of common instrument that strain direct shear apparatus is experimental determination soil classifiction.At present, there is certain defect in the strain direct shear apparatus such as existing: when shaking handwheel in process of the test in structural design, shear box can slowly movement forward, and the load bar (being connected with lever below) on shear box rotates, not horizontal forward movement together with shear box, this just causes load bar applies is not Vertical Load, but eccentric load, in the computation process of shear stress, do not consider that the component of eccentric load (namely enablely measures this component size, also the computing formula be not suitable for is revised detection data), thus the native shearing strength value obtained there will be relatively large deviation.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of and effectively can measure the strain direct shear apparatuses such as the novel two-wheel of soil classifiction.
The utility model for the adopted technical scheme that solves the problem is: the strain such as a kind of novel two-wheel direct shear apparatus, comprise support and be arranged on Level Promoting base device, vertically loading system, down cut box and the vertical movement dial gauge on support, down cut box is provided with shear box, and the front end of upper shear box connects with the ring of measuring one's own ability of vertical movement dial gauge; Described Level Promoting base device comprises the pushing block be connected with down cut box, and handwheel is connected with pushing block by gear train, drives pushing block translation, pushing block is provided with vertical deformation dial gauge; Described vertical loading system comprises the loading framework be connected with upper shear box, below support, correspond to handwheel have additional linkage, the drive end of linkage is connected by the handwheel of belt wheel mechanism with Level Promoting base device, and the output terminal of link gear is connected with the loading framework of vertical loading system.
By such scheme, described linkage comprises the belt pulley being installed in side below support, and belt pulley is connected with handwheel by belt, handwheel is arranged or connects driving pulley; Belt pulley below described support is connected with gear by transmission shaft, and wheel and rack is meshed; One end of described tooth bar connects firmly mutually with loading framework.
By such scheme, described belt is synchronous cog belt; Described belt pulley is profile of tooth belt wheel.
By such scheme, described transmission shaft is through a sleeve pipe; Described sleeve pipe is fixedly connected with support by fixing pole.
By such scheme, described loading framework comprises entablature, load bar and sill, and entablature two ends are connected with sill two ends by load bar; Described sill is connected with tooth bar one end; Described entablature and the pressure transmission screw phase configuration be installed in above shear box.
By such scheme, described vertical loading system also comprises the lever be connected with sill; Described lever two ends are respectively arranged with scale pan and balance bob.
By such scheme, described sill is connected with a vertical bar, and the top of vertical bar is connected with ball, and ball is stuck in the guide groove that is arranged on support, and vertical bar is moved left and right with loading framework by ball.
The utility model adopts linkage, while upper shear box moves horizontally, drive vertical loading system to move, ensure that load bar is applied to, shear box is Vertical Load, instead of eccentric load, test findings deviation is little, obtains soil classifiction trial value more accurate; Meanwhile, this apparatus structure advantages of simple, is applicable to the laboratory of testing agency etc. in one's power of Ge great institution of higher learning, Research Center.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment.
Fig. 2 is the structural representation of linkage in the present embodiment.
Fig. 3 is rack pinion structural representation.
Wherein: 1, handwheel; 2, belt; 3, belt pulley; 4, upper shear box; 5, down cut box; 6, load bar; 7, vertical movement dial gauge; 8, gear; 9, transmission shaft; 10, tooth bar; 11, entablature; 12, lever; 13, sill; 14, support; 15, balance bob; 16, scale pan; 17, pushing block; 18, pressure transmission screw; 19, vertical deformation dial gauge; 20, vertical bar; 21, sleeve pipe; 22, fixing pole.
Embodiment
In order to better understand the utility model, below in conjunction with accompanying drawing, the utility model is further described.
The strain such as one novel two-wheel as shown in Figure 1 direct shear apparatus, comprise support 14 and be arranged on Level Promoting base device, vertically loading system, down cut box 5 and the vertical movement dial gauge 7 on support 14, on down cut box, 5 are provided with shear box 4, and the front end of upper shear box 4 connects with the ring of measuring one's own ability of vertical movement dial gauge 7; Described Level Promoting base device comprises the pushing block 17 be connected with down cut box 5, and handwheel 1 is connected with pushing block 17 by gear train, drives pushing block 17 translation, pushing block 17 is provided with vertical deformation dial gauge 19; Described vertical loading system comprises the loading framework be connected with upper shear box 4, below support 14, correspond to handwheel 1 have additional linkage, the drive end of linkage is connected with the handwheel 1 of Level Promoting base device by belt wheel mechanism, and the output terminal of link gear is connected with the loading framework of vertical loading system.
Wherein, linkage comprises the belt pulley 3 being installed in side below support 14, belt pulley 3 is connected with handwheel 1 by belt 2, handwheel 1 is arranged or connects driving pulley, belt pulley 3 below support 14 is connected with gear 8 by transmission shaft 9, gear 8 is meshed with tooth bar 10, and one end of tooth bar 10 connects firmly mutually with loading framework; Transmission shaft 9 is through a sleeve pipe 21, and sleeve pipe 21 is fixedly connected with support 14 by fixing pole 22; Belt 2 is synchronous cog belt, and belt pulley 3 is profile of tooth belt wheel; Loading framework comprises entablature 11, load bar 6 and sill 13, and entablature 11 two ends are connected with sill 13 two ends by load bar 6; Described sill 13 is connected with tooth bar 10 one end; Sill 13 also connects a vertical bar 20, and the top of vertical bar 20 is connected with ball, and ball is stuck in the guide groove that is arranged on support 14, and vertical bar 20 is moved left and right with loading framework by ball; Described entablature 11 and pressure transmission screw 18 phase configuration be installed in above shear box 4; Vertical loading system also comprises the lever 12 be connected with sill 13; Described lever 12 two ends are respectively arranged with scale pan 16 and balance bob 15.
Principle of work of the present utility model is: when shearing the handwheel 1 on gear train and rotating, pushing block 17 promotes down cut box 5 and slowly moves forward, handwheel 1 is with movable belt pulley 3 to rotate by belt 2 simultaneously, transmission shaft 9 rotates thereupon and is with carry-over bar 10 to move by gear 8, then promote the loading framework horizontal forward slow movement be together added on shear box 4, ensure that the Vertical Load that the load be added on shear box 4 is always real.
Before testing, carry out following preliminary work:
First, direct shear apparatus is steadily positioned on experiment porch, tightens the bolt on sill 13, make loading framework and lever 12 basicly stable; Check whether lever 12 both sides have to rub mutually, whether gear 8 engages with tooth bar 10; Adjustment balance bob 15, after lever 12 is in a basic balance and tight balance bob 15 and cap, bolt of outwarding winding, fully throws off with lever 12, and in the middle of column lever 12 being in pedestal 14; Shear box 4 in inspection, rolling steel balls is just being put and is being ensured the flexible no-sundries jam that rolls; In upper shear box 4, add soil sample by code, put permeable stone and pressure transmission plate well, make the pressure transmission screw 18 on loading framework aim at steel ball center; Shake handwheel 1, make the front end of shear box 4 just contact ring of measuring one's own ability, vertical deformation dial gauge 19 is to zero, simultaneously by vertical movement dial gauge 7 to zero, turn pressure transmission screw 18, can be slightly high without precompressed if raise lever 12(sample in right amount, sinks in order to avoid add rear soil sample and lever 12 is too tilted).
After preliminary work completes, start to carry out testing inspection: first apply vertical load (increase by actual conditions or reduce counterweight) by actual demands of engineering, until soil sample stand under load or after fixing, two fixed pins back-outed on upper shear box 4, at the uniform velocity shake handwheel 1 to shear, and load (extracting pressure transmission screw 18), device is set back.
Claims (7)
1. the strain such as novel two-wheel direct shear apparatus, comprise support and be arranged on Level Promoting base device, vertically loading system, down cut box and the vertical movement dial gauge on support, down cut box is provided with shear box, and the front end of upper shear box connects with the ring of measuring one's own ability of vertical movement dial gauge; Described Level Promoting base device comprises the pushing block be connected with down cut box, and handwheel is connected with pushing block by gear train, drives pushing block translation, pushing block is provided with vertical deformation dial gauge; Described vertical loading system comprises the loading framework be connected with upper shear box, it is characterized in that, below support, correspond to handwheel have additional linkage, the drive end of linkage is connected by the handwheel of belt wheel mechanism with Level Promoting base device, and the output terminal of link gear is connected with the loading framework of vertical loading system.
2. the strain such as novel two-wheel as claimed in claim 1 direct shear apparatus, it is characterized in that, described linkage comprises the belt pulley being installed in side below support, and belt pulley is connected with handwheel by belt, handwheel is arranged or connects driving pulley; Belt pulley below described support is connected with gear by transmission shaft, and wheel and rack is meshed; One end of described tooth bar connects firmly mutually with loading framework.
3. the strain such as novel two-wheel as claimed in claim 2 direct shear apparatus, it is characterized in that, described belt is synchronous cog belt; Described belt pulley is profile of tooth belt wheel.
4. the strain such as novel two-wheel as claimed in claim 2 direct shear apparatus, is characterized in that, described transmission shaft is through a sleeve pipe; Described sleeve pipe is fixedly connected with support by fixing pole.
5. the strain such as the novel two-wheel as described in claim 1,2,3 or 4 direct shear apparatus, it is characterized in that, described loading framework comprises entablature, load bar and sill, and entablature two ends are connected with sill two ends by load bar; Described sill is connected with tooth bar one end; Described entablature and the pressure transmission screw phase configuration be installed in above shear box.
6. the strain such as novel two-wheel as claimed in claim 5 direct shear apparatus, it is characterized in that, described vertical loading system also comprises the lever be connected with sill; Described lever two ends are respectively arranged with scale pan and balance bob.
7. the strain such as novel two-wheel as claimed in claim 5 direct shear apparatus, it is characterized in that, described sill is connected with a vertical bar, and the top of vertical bar is connected with ball, ball is stuck in the guide groove that is arranged on support, and vertical bar is moved left and right with loading framework by ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048661.1U CN204359616U (en) | 2015-01-23 | 2015-01-23 | The strain such as novel two-wheel direct shear apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520048661.1U CN204359616U (en) | 2015-01-23 | 2015-01-23 | The strain such as novel two-wheel direct shear apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN204359616U true CN204359616U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520048661.1U Expired - Fee Related CN204359616U (en) | 2015-01-23 | 2015-01-23 | The strain such as novel two-wheel direct shear apparatus |
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| Country | Link |
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| CN (1) | CN204359616U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596867A (en) * | 2015-01-23 | 2015-05-06 | 长江三峡勘测研究院有限公司（武汉） | Novel double-wheel equal-strain direct shear apparatus |
| CN105223094A (en) * | 2015-09-25 | 2016-01-06 | 济南大学 | A kind of variable-angle bending fatigue tester |
-
2015
- 2015-01-23 CN CN201520048661.1U patent/CN204359616U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596867A (en) * | 2015-01-23 | 2015-05-06 | 长江三峡勘测研究院有限公司（武汉） | Novel double-wheel equal-strain direct shear apparatus |
| CN105223094A (en) * | 2015-09-25 | 2016-01-06 | 济南大学 | A kind of variable-angle bending fatigue tester |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 |