CN107063805B - Outer wall cutting device for soft clay hollow cylindrical sample and using method thereof - Google Patents
Outer wall cutting device for soft clay hollow cylindrical sample and using method thereof Download PDFInfo
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- CN107063805B CN107063805B CN201710377153.1A CN201710377153A CN107063805B CN 107063805 B CN107063805 B CN 107063805B CN 201710377153 A CN201710377153 A CN 201710377153A CN 107063805 B CN107063805 B CN 107063805B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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Abstract
The invention discloses an outer wall cutting device for a soft clay hollow cylindrical sample and a using method thereof. The device comprises an external support, a screw rod, a driving device, a sample fixing device and a sample cutting device, wherein the screw rod is arranged in the external support, the bottom end of the screw rod is rotatably supported on a bottom plate, and the upper end of the screw rod is connected with the driving device; the sample fixing device is connected to the screw rod and can rotate from top to bottom along the shaft direction of the screw rod when the screw rod rotates, the sample cutting device is arranged in the shaft direction of the screw rod, the screw rod is driven to rotate through the driving device to drive the sample to rotate from top to bottom, and when the sample passes through the cutting device, the cutting device cuts the outer wall of the sample. The invention avoids disturbance and incomplete cutting which are possibly generated to the hollow cylindrical sample during manual cutting, has simple operation and can be cut and molded uniformly at one time.
Description
Technical Field
The invention relates to an outer wall cutting device for a soft clay hollow cylindrical sample and a using method thereof.
Background
The hollow cylinder torsional shear apparatus is one of the most complex and powerful apparatuses in indoor geotechnical test apparatuses, and is increasingly used at home and abroad, and the outer wall of a soft clay hollow cylinder sample needs to be cut to manufacture a standard hollow cylinder sample. With the continuous increase of the test research developed aiming at the soft clay hollow cylindrical soil sample, how to stably and conveniently cut the outer wall of the soft clay hollow cylindrical sample has important significance for shortening the test time and ensuring the truth and reliability of the test result. For example, Chinese patents ZL 200710070117.7 and ZL 201310251375.0 respectively invent sample preparation methods of an undisturbed soft clay sample and a remolded soft clay hollow cylindrical sample, secondary processing processes for cutting the outer wall of the sample exist, most of the existing cutting methods of the soft clay hollow cylindrical sample are manual cutting, disturbance of the soil sample is easily caused in the cutting process, time is consumed, and manual judgment is needed for judging whether the sample is cut in place or not.
Disclosure of Invention
The invention aims to provide an outer wall cutting device for a soft clay hollow cylindrical sample and a using method thereof, and solves the problem of outer wall cutting of the hollow cylindrical sample. The method avoids disturbance and incomplete cutting which may be caused to the hollow cylindrical sample during manual cutting, and is simple to operate and one-step forming.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the outer wall cutting device for the soft clay hollow cylindrical sample comprises an external support, a screw rod, a driving device, a sample fixing device and a sample cutting device, wherein the screw rod is arranged in the external support, the bottom end of the screw rod is rotatably supported on a bottom plate, and the upper end of the screw rod is connected with the driving device; the sample fixing device is connected to the screw rod and can rotate from top to bottom along the shaft direction of the screw rod when the screw rod rotates, the sample cutting device is arranged in the shaft direction of the screw rod, the screw rod is driven to rotate through the driving device to drive the sample to rotate from top to bottom, and when the sample passes through the cutting device, the cutting device cuts the outer wall of the sample.
The utility model discloses a supporting structure, including the top plate, the bottom plate, the outside support includes roof, bottom plate and connects the bracing piece between roof and bottom plate, the bracing piece includes three at least, the bottom and the bottom plate fixed connection of three at least bracing pieces, be equipped with on the roof supply the bracing piece peg graft vertical shaft hole and with the perpendicular first horizontal screw hole that feeds through the setting in vertical shaft hole, the bracing piece upper end is connected the back through vertical shaft hole and roof and is fixed between bracing piece and the roof through connecting fastening screw in first horizontal screw hole.
The driving device includes: the spiral rod is characterized in that a large gear, a small gear and a rotary control rod are arranged on the top plate, the large gear and the small gear are horizontally placed in the empty slots, the rotary control rod is fixedly connected with the small gear, the small gear is meshed with the large gear, a polygonal hole groove is formed in the center of the bottom of the large gear, a polygonal rod section is arranged at the upper end of the spiral rod, a vertical through hole communicated with the polygonal hole groove is formed in the bottom of the polygonal hole groove of the large gear on the top plate, and the polygonal rod section at the upper end of the spiral rod penetrates through the vertical through hole and then is connected with the polygonal hole groove in the bottom of the large gear in a matched mode; the bottom end of the screw rod is provided with a smooth hemispherical rod body, and the upper surface of the bottom plate is provided with a smooth circular groove for the smooth hemispherical rod body to be spliced.
The sample fixing device comprises a base, a positioning circular tube, an upper connecting plate and a fixing plate, wherein the center of the base is fixedly connected with the positioning circular tube, the upper connecting plate is fixedly connected with the fixing plate, an annular groove communicated with the fixing plate is formed in the upper connecting plate, a second transverse threaded hole vertically communicated with the annular groove is formed in the fixing plate, and after the upper end of the positioning circular tube is connected with the fixing plate through the annular groove, the positioning circular tube and the upper connecting plate are fixed through connecting a fastening screw in the second transverse threaded hole;
the sample cutting device comprises a cutting steel ring with a knife edge, a spiral cutting steel blade and a cutting steel ring fixing rod, wherein 4 spiral cutting steel blades are attached to the outer wall of the cutting steel ring with the knife edge, and the cutting steel ring with the knife edge is fixedly connected with an external support through the cutting steel ring fixing rod.
The upper connecting plate comprises a semicircular connecting plate split body I and a semicircular connecting plate split body II, and the semicircular connecting plate split body I and the semicircular connecting plate split body II are connected and folded through screw fasteners to form the upper connecting plate.
And connecting holes for the fastening screws to pass through are symmetrically formed in two sides of the upper pipe wall of the positioning circular pipe.
The connecting holes are long-strip-shaped connecting holes which are axially arranged along the positioning circular tube.
The upper surface of base and the lower surface of upper portion connecting plate are equipped with anti-skidding line respectively.
The use method of the outer wall cutting device of the soft clay hollow cylinder sample comprises the following steps:
step S1, arranging the hollow cylindrical sample of which the outer wall is to be cut on a sample fixing device and fixing the hollow cylindrical sample and the sample fixing device mutually;
step S2, the top of the screw rod penetrates through the bottom of the sample fixing device, and is connected with a driving device after rotating to penetrate through a threaded hole of the sample fixing device, a small amount of vaseline is smeared on the bottom of the screw rod, and the screw rod is rotatably supported on a bottom plate;
step S3, slowly rotating the driving device, and slightly pushing the sample fixing device downwards at the same time to ensure the uniform rotation and descending cutting of the sample;
in step S4, after the cutting is completed, the cut sample is taken out from the sample holder.
The outer wall cutting device for the soft clay hollow cylindrical sample has the beneficial effects that:
the outer wall cutting device for the soft clay hollow cylindrical sample well avoids disturbance and incomplete cutting which may be caused to the hollow cylindrical sample during manual cutting, and ensures the integrity of the sample and the authenticity and reliability of a test result.
Through the cutting of rotating control pole alright realization sample outer wall, easy operation once alright even cutting shaping has shortened the required time of making standard sample greatly, is favorable to guaranteeing the original state nature of sample soil.
Drawings
FIG. 1 is a top plan view of the top plate of the present invention;
FIG. 2 is a front view of the screw of the present invention;
FIG. 3 is a front view of the outer bracket of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a side view of the base and positioning tube attachment of the sample holder of the present invention;
FIG. 6 is a cross-sectional view of a sample holding device of the present invention;
FIG. 7 is a top view of FIG. 5;
FIG. 8 is a top view of the upper web of the sample fixture;
fig. 9 is a schematic view of the state of use of the present invention.
In the figure: 1. A top plate; 2. a large-size gear; 3. a small-size gear; 4. rotating the control rod; (5, 21, 23) a fastening screw; 6. a first transverse threaded hole; 7. a screw rod; 8. a hexagonal hole slot; 9. a smooth circular groove; 10. a base plate; 11. a support bar; 12. cutting the steel ring with a knife edge; 13. spirally cutting a steel blade; 14. cutting the steel ring fixing rod; 15. a base; 16. anti-skid lines on the base; 17. a strip-shaped connecting hole; 18. the semicircular connecting plate is divided into a body I; 19. the semicircular connecting plate is divided into a body II; 20. the upper connecting plate is folded with a screw hole; 22. the upper connecting plate is connected with the screw hole; 24. anti-skid lines on the bottom surface of the upper connecting plate; 25. hollow cylinder samples.
Detailed Description
The technical scheme of the outer wall cutting device of the soft clay hollow cylindrical sample is further described in detail with reference to the accompanying drawings.
As shown in the attached figures 1, 2, 3 and 4, the outer wall cutting device of the soft clay hollow cylinder sample comprises a top plate 1, a large gear 2, a small gear 3, a rotary control rod 4, a first transverse threaded hole 6, a spiral rod 7, a hexagonal hole groove 8, a smooth circular groove 9, a bottom plate 10, a support rod 11, a cutting steel ring 12 with a knife edge, a spiral cutting steel blade 13, a cutting steel ring fixing rod 14, a base 15, a long-strip-shaped connecting hole 17, a semicircular connecting plate split body I18, a semicircular connecting plate split body II19, an upper connecting plate folding screw hole 20, an upper connecting plate connecting screw hole 22, wherein the hollow cylindrical sample 25 is fixed by a sample fixing means, and set on a cutting means, the hollow cylindrical sample 25 can be rotated from top to bottom by rotating the rotating control rod 4 on the top plate 1, when the hollow cylindrical sample 25 passes through the cutting steel ring 12 with the knife edge, the outer wall of the hollow cylindrical sample 25 can be cut.
The small gear 3 is directly connected with the rotary control rod 4, meshed with the large gear 2 and arranged in the top plate 1. The bottom plate 10 is directly connected with the support rod 11, the inner diameter of the cutting steel ring with the knife edge is designed according to the size of a standard sample, the cutting forming can be guaranteed at one time, and the outer wall of the cutting steel ring 12 with the knife edge is attached with 4 spiral cutting steel blades 13, so that the outer wall can be guaranteed to be cut quickly and stably. The fixing rod 14 is fixed on the supporting rod 11 by cutting a steel ring.
The semi-circular connecting plate split body I18 and the semi-circular connecting plate split body II19 are folded to form a threaded hole matched with the screw rod 7.
The screw rod is composed of three parts: the smooth hemispherical rod body is correspondingly inserted into the smooth circular groove 9; the middle threaded rod body is used for controlling the lifting of the sample; the hexagonal rod body at the top is correspondingly inserted into the hexagonal hole groove at the bottom of the large-size gear 2. The screw rod 7 is driven by a large-size gear to realize in-situ rotation in the smooth circular groove 9.
The threaded hole of the inner wall formed after the semicircular connecting plate split body I and the semicircular connecting plate split body II are folded is matched with the thread of the screw rod, so that the spiral descending of the sample can be realized.
The strip-shaped connecting holes 17 can ensure that the base and the upper connecting plate can be smoothly connected when the height of the sample has small fluctuation.
The rotary control rod is directly connected with the small gear, and the large gear is meshed with the small gear to ensure the stability of the cutting rate.
The use method of the outer wall cutting device of the soft clay hollow cylinder sample comprises the following steps:
(1) the hollow cylindrical sample 25 whose outer wall is to be cut is placed on the base 15, and the position of the round tube is referenced to ensure that the sample is basically positioned in the center of the base.
(2) The folding of the semicircular connecting plate split body I18 and the semicircular connecting plate split body II19 is achieved by screwing the folding screw 21 on the upper connecting plate to form the upper connecting plate, the upper connecting plate is folded along the positioning round pipe opening, the upper connecting plate needs to be placed lightly during folding, disturbance to the hollow cylindrical sample 25 is reduced, the upper connecting plate connecting screw hole 22 is aligned with the elongated connecting hole 17, and the hollow cylindrical sample 25 is fixed by connecting the fastening screw 23.
(3) And penetrating the top of the screw rod 7 from the bottom of the sample fixing device, and rotating to penetrate out of a threaded hole of the upper connecting plate, smearing a small amount of vaseline on the bottom of the screw rod 7, and vertically inserting the vaseline into the smooth circular groove 9 of the bottom plate 10.
(4) The supporting rod is inserted by aligning with the first transverse threaded hole, the top of the screw rod 7 is inserted by aligning with the hexagonal hole groove 8, and the screw 5 is screwed down to complete the installation of the top plate 1.
(5) Proper vaseline is smeared on the inner wall and the edge of the cutting steel ring 12 with the edge of the knife and the 4-path spiral cutting steel blade 13, the rotating control rod 4 is slowly rotated by one hand, and the sample fixing device is slightly pushed downwards by the other hand, so that the uniform rotation descending cutting of the sample is ensured.
(6) After cutting is finished, firstly loosening the control platform fixing bolt 5, detaching the top plate 1, then loosening the fastening screw, detaching the upper connecting plate, then taking out the screw rod 7, and finally taking out the base and the cut hollow cylindrical sample together.
Claims (4)
1. The outer wall cutting device for the soft clay hollow cylindrical sample is characterized by comprising an external support, a screw rod, a driving device, a sample fixing device and a sample cutting device, wherein the screw rod is arranged in the external support, the bottom end of the screw rod is rotatably supported on a bottom plate, and the upper end of the screw rod is connected with the driving device; the sample fixing device is connected to the screw rod and can rotate from top to bottom along the shaft direction of the screw rod when the screw rod rotates, the sample cutting device is arranged in the shaft direction of the screw rod, the screw rod is driven to rotate by the driving device to drive the sample to rotate from top to bottom, and when the sample passes through the cutting device, the sample cutting device cuts the outer wall of the sample;
the sample cutting device comprises a cutting steel ring with a knife edge, a spiral cutting steel blade and a cutting steel ring fixing rod, wherein 4 spiral cutting steel blades are attached to the outer wall of the cutting steel ring with the knife edge, the cutting steel ring with the knife edge is fixedly connected with an external support through the cutting steel ring fixing rod, and the cutting steel ring with the knife edge and the spiral rod are coaxially arranged;
the external support comprises a top plate, a bottom plate and at least three support rods connected between the top plate and the bottom plate, the bottom ends of the at least three support rods are fixedly connected with the bottom plate, the top plate is provided with a vertical shaft hole for the support rods to be inserted and a first transverse threaded hole vertically communicated with the vertical shaft hole, and the upper ends of the support rods are connected with the top plate through the vertical shaft hole and then are fixed with the top plate through connecting fastening screws in the first transverse threaded holes;
the driving device includes: the spiral rod is characterized in that a large gear, a small gear and a rotary control rod are arranged on the top plate, the large gear and the small gear are horizontally placed in the empty slots, the rotary control rod is fixedly connected with the small gear, the small gear is meshed with the large gear, a polygonal hole groove is formed in the center of the bottom of the large gear, a polygonal rod section is arranged at the upper end of the spiral rod, a vertical through hole communicated with the polygonal hole groove is formed in the bottom of the polygonal hole groove of the large gear on the top plate, and the polygonal rod section at the upper end of the spiral rod penetrates through the vertical through hole and then is connected with the polygonal hole groove in the bottom of the large gear in a matched mode; the bottom end of the screw rod is provided with a smooth hemispherical rod body, and the upper surface of the bottom plate is provided with a smooth circular groove for the smooth hemispherical rod body to be inserted;
the sample fixing device comprises a base, a positioning circular tube, an upper connecting plate and a fixing plate, wherein the center of the base is fixedly connected with the positioning circular tube, the upper connecting plate is fixedly connected with the fixing plate, an annular groove communicated with the fixing plate is formed in the upper connecting plate, a second transverse threaded hole vertically communicated with the annular groove is formed in the fixing plate, and after the upper end of the positioning circular tube is connected with the fixing plate through the annular groove, the positioning circular tube and the upper connecting plate are fixed through connecting a fastening screw in the second transverse threaded hole;
connecting holes for the fastening screws to pass through are symmetrically formed in two sides of the upper end pipe wall of the positioning circular pipe;
the connecting holes are long-strip-shaped connecting holes which are axially arranged along the positioning circular tube.
2. The device for cutting the outer wall of the soft clay hollow cylinder sample according to claim 1, wherein the upper connecting plate comprises a semicircular connecting plate split body I and a semicircular connecting plate split body II, and the semicircular connecting plate split body I and the semicircular connecting plate split body II are connected and folded through a screw fastener to form the upper connecting plate.
3. The device for cutting the outer wall of the hollow cylindrical soft clay sample according to claim 1, wherein the upper surface of the base and the lower surface of the upper connecting plate are respectively provided with anti-slip lines.
4. The use method of the outer wall cutting device based on the soft clay hollow cylinder sample as claimed in claim 1 is characterized by comprising the following steps:
step S1, arranging the hollow cylindrical sample of which the outer wall is to be cut on a sample fixing device and fixing the hollow cylindrical sample and the sample fixing device mutually;
step S2, the top of the screw rod penetrates through the bottom of the sample fixing device, and is connected with a driving device after rotating to penetrate through a threaded hole of the sample fixing device, a small amount of vaseline is smeared on the bottom of the screw rod, and the screw rod is rotatably supported on a bottom plate;
step S3, slowly rotating the driving device, and slightly pushing the sample fixing device downwards at the same time to ensure the uniform rotation and descending cutting of the sample;
in step S4, after the cutting is completed, the cut sample is taken out from the sample holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377153.1A CN107063805B (en) | 2017-05-25 | 2017-05-25 | Outer wall cutting device for soft clay hollow cylindrical sample and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710377153.1A CN107063805B (en) | 2017-05-25 | 2017-05-25 | Outer wall cutting device for soft clay hollow cylindrical sample and using method thereof |
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| Publication Number | Publication Date |
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| CN107063805A CN107063805A (en) | 2017-08-18 |
| CN107063805B true CN107063805B (en) | 2020-04-21 |
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| CN201710377153.1A Active CN107063805B (en) | 2017-05-25 | 2017-05-25 | Outer wall cutting device for soft clay hollow cylindrical sample and using method thereof |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221078A (en) * | 2014-06-09 | 2016-01-06 | 天津市八方工程机械设备有限公司 | A kind of augers with air-breather |
| CN204163070U (en) * | 2014-09-29 | 2015-02-18 | 湖北水总水利水电建设股份有限公司 | A kind of inner-outer sleeve Cylinder vacuum weak soil soil sampler |
| CN105587317A (en) * | 2014-11-16 | 2016-05-18 | 西安扩力机电科技有限公司 | Cylindrical sampling device for loess samples |
| CN204286839U (en) * | 2014-11-16 | 2015-04-22 | 西安扩力机电科技有限公司 | A kind of undisturbed samples of soft clay sampling cutter |
| CN106501055B (en) * | 2017-01-17 | 2023-06-30 | 浙江大学城市学院 | Using method of soft clay hollow cylindrical sample preparation instrument |
| CN106680055B (en) * | 2017-03-03 | 2023-11-28 | 天津城建大学 | Multifunctional soft clay hollow cylinder sample preparation device and sample preparation method |
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