CN-224231396-U - Ring cutter soil sample preparation facilities

CN224231396UCN 224231396 UCN224231396 UCN 224231396UCN-224231396-U

Abstract

The utility model relates to the technical field of geotechnical tests, in particular to a ring cutter soil sample preparation device. The annular cutter soil sample preparation device comprises an upper clamping structure and a lower clamping structure, wherein the upper clamping structure and the lower clamping structure are used for achieving opening and closing of the upper clamping structure and the lower clamping structure, an upper thrust structure and an upper permeable stone which is detachably connected with the upper thrust structure are coaxially arranged at one end of the upper clamping structure, the upper thrust structure rotates relative to the upper clamping structure around the axial direction of the upper thrust structure and the axial direction perpendicular to the upper thrust structure at the same time, a lower thrust structure and a lower permeable stone which is detachably connected with the lower thrust structure are coaxially arranged at one end of the lower clamping structure, the lower thrust structure rotates relative to the lower clamping structure around the axial direction of the lower thrust structure and the axial direction perpendicular to the lower thrust structure at the same time, the upper permeable stone and the lower permeable stone are used for coaxially clamping a soil sample to be cut, and the upper permeable stone, the soil sample to be cut, the lower permeable stone and the lower thrust structure are coaxially rotated under the rotation action of the upper permeable stone to achieve cylindrical cutting of the soil sample to be cut.

Inventors

YUAN SHUAI
WANG YIHAN
XING YUNPENG
ZHANG SHUWEN
GONG YAMING
Yu Zunyu
YANG YUHUI
XIN SEN
JIN WEIRUI
ZHANG HAOYU

Assignees

长安大学

Dates

Publication Date: 20260512
Application Date: 20250609

Claims (10)

1. The annular cutter soil sample preparation device is characterized by comprising an upper clamping structure and a lower clamping structure, wherein the upper clamping structure and the lower clamping structure are connected through an elastic rotating shaft and used for realizing opening and closing of the upper clamping structure and the lower clamping structure, one end of the upper clamping structure is coaxially provided with an upper thrust structure and an upper permeable stone (5) detachably connected with the upper thrust structure, the upper thrust structure rotates relative to the upper clamping structure around the axial direction of the upper thrust structure and the axial direction perpendicular to the upper thrust structure at the same time, one end of the lower clamping structure is coaxially provided with a lower thrust structure and a lower permeable stone (6) detachably connected with the lower thrust structure, the lower thrust structure rotates relative to the lower clamping structure around the axial direction of the lower thrust structure and the axial direction perpendicular to the lower thrust structure at the same time, the upper permeable stone (5) and the lower permeable stone (6) are used for coaxially clamping a soil sample (14) to be cut, and the upper permeable stone (5), the soil sample (14) to be cut, the lower permeable stone (6) and the lower thrust structure are driven to coaxially rotate under the rotating action of the upper permeable stone (5) so as to realize cylindrical cutting of the soil sample (14) to be cut.
2. The cutting ring soil sample preparation device according to claim 1, wherein the upper clamping structure comprises an upper clamping frame (1) and an upper handle (3) integrally connected with the upper clamping frame, the lower clamping structure comprises a lower clamping frame (2) and a lower handle (4) integrally connected with the lower clamping frame, one end, far away from the upper handle (3), of the upper clamping frame (1) is connected with an upper thrust structure, and one end, far away from the lower handle (4), of the lower clamping frame (2) is connected with a lower thrust structure.
3. The ring cutter soil sample preparation device according to claim 2, wherein the upper thrust structure and the lower thrust structure are an upper casing thrust bearing (7) and a lower casing thrust bearing (8), respectively, and the upper casing thrust bearing (7), the upper permeable stone (5), the lower casing thrust bearing (8) and the lower permeable stone (6) are coaxially arranged when the soil sample (14) to be cut is in a clamped state.
4. A ring cutter soil sample preparation device according to claim 3, wherein the upper casing thrust bearing (7) is connected with the upper clamping frame (1) through an upper rotating shaft (9) so that the upper casing thrust bearing (7) rotates relative to the upper clamping frame (1) around an axial direction perpendicular to the upper casing thrust bearing (7), and the lower casing thrust bearing (8) is connected with the lower clamping frame (2) through a lower rotating shaft (10) so that the lower casing thrust bearing (8) rotates relative to the lower clamping frame (2) around an axial direction perpendicular to the lower casing thrust bearing (8).
5. The soil sample preparation device according to claim 4, wherein the upper rotary shaft (9) is mounted at an end of the upper clamping frame (1) far from the upper handle (3) in an axial direction perpendicular to the upper casing thrust bearing (7), and the lower rotary shaft (10) is mounted at an end of the lower clamping frame (2) far from the lower handle (4) in an axial direction perpendicular to the lower casing thrust bearing (8).
6. The cutting ring soil sample preparation device according to claim 5, wherein an upper tray (11) is mounted at one end of the upper rotating shaft (9) far away from the upper clamping frame (1), and a lower tray is mounted at one end of the lower rotating shaft (10) far away from the lower clamping frame (2).
7. The cutting ring soil sample preparation device according to claim 6, wherein an upper iron sheet (12) is mounted between the upper tray (11) and the upper cladding thrust bearing (7), and the upper cladding thrust bearing (7) is rotatably connected with the upper iron sheet (12), and a lower iron sheet is mounted between the lower tray and the lower cladding thrust bearing (8), and the lower cladding thrust bearing (8) is rotatably connected with the lower iron sheet.
8. The ring cutter soil sample preparation device of any one of claims 1 to 7, wherein the elastic rotating shaft is a spring elastic bearing (13).
9. The cutting ring soil sample preparation device according to any one of claims 2 to 7, wherein the upper clamping frame (1) and the lower clamping frame (2) are both of right angle U-shaped structures.
10. The ring cutter soil sample preparation device according to any one of claims 1 to 7, wherein the size of the upper permeable stone (5) and the lower permeable stone is adjustable according to the size of the soil sample (14) to be cut.

Description

Ring cutter soil sample preparation facilities Technical Field The utility model belongs to the technical field of geotechnical tests, and particularly relates to a ring cutter soil sample preparation device. Background In the geotechnical test, the ring cutter sample is in a soil sample form commonly used in geotechnical test, and has a diameter of 61.8mm and a height of 20mm. Is generally obtained by a cutting ring and is mainly used for measuring the physical and mechanical properties such as the shear strength, the compressibility and the like of the soil. The size of the ring cutter sample is required to be strictly in line with the requirements, so that the ring cutter and experimental instruments cannot be placed in the ring cutter sample, and experimental errors are small. There are generally two methods for making the ring cutter sample, a sample pressing method and a sample cutting method. The compaction method is generally directed to remolded soil testing and the skiving method is generally directed to undisturbed soil or harder soil blocks. The utility model is mainly aimed at innovatively manufacturing by a sample cutting method. The traditional method for cutting the soil sample is to cut out a little by a little, for example, the soil sample is taken out and put in place and the two ends are flattened as written in the Highway engineering geotechnical test procedure JTG 3430-2020. Coating a thin layer of vaseline on the inner wall of the ring cutter, placing the edge of the ring cutter on a soil sample, vertically pressing the ring cutter downwards, pressing and cutting simultaneously until the soil sample extends out of the upper part of the ring cutter, and cutting the two ends of the ring cutter. The inner wall of the soil cutting ring cutter for test is coated with a thin layer of vaseline with the cutting edge facing downwards and placed on a soil sample as written in geotechnical test method standard GB/T50123-2019. Cutting the soil sample into soil columns with the diameter slightly larger than that of the cutting ring by using a soil cutting knife. And then the cutting ring is vertically pressed downwards, and the cutting is performed at the same time until the soil sample extends out of the cutting ring. The sample is cut and sealed with the ring cutter. However, such a sample cutting method is prone to generate large errors in the practical process, has strong subjective factors, and does not have strict limitation on the size. And the workload is large, the consumed time is long, and great tests are generated on the energy and physical strength of the experimenters. The existing ring cutter sample preparation device mainly aims at the sample preparation of a compaction method, and a ring cutter sample is formed by putting a soil sample with a certain mass into a compaction container with a certain volume and then compacting. The compaction method has the advantages that the ring cutter sample conforming to the diameter size of the ring cutter can be manufactured quickly, the density of the compaction sample can be controlled quickly, and the defect that the ring cutter sample of undisturbed soil or the ring cutter sample of harder soil cannot be manufactured. Meanwhile, the existing commercial sample cutter can only sample higher samples, the height of the samples is generally 80-100 mm, and the conventional commercial sample cutter is not suitable for manufacturing ring cutter samples. The anti-skid mode of the sample cutter is that the needle disc penetrates into soil body and then rotates to cut the soil sample, so that the soil sample is greatly disturbed. Disclosure of utility model The utility model aims to provide a device for preparing a ring cutter soil sample, which solves the problems of inaccurate size, time and labor waste when preparing a ring cutter sample of an undisturbed soil sample or a hard soil sample in the prior art. In order to solve the problems, the utility model provides a ring cutter soil sample preparation device, which adopts the following technical scheme: The annular cutter soil sample preparation device comprises an upper clamping structure and a lower clamping structure which are connected through an elastic rotating shaft and used for realizing opening and closing of the upper clamping structure and the lower clamping structure, wherein one end of the upper clamping structure is coaxially provided with an upper thrust structure and an upper permeable stone which is detachably connected with the upper thrust structure, the upper thrust structure rotates relative to the upper clamping structure around the axial direction of the upper thrust structure and the axial direction perpendicular to the upper thrust structure at the same time, one end of the lower clamping structure is coaxially provided with a lower thrust structure and a lower permeable stone which is detachably connected with the lower thrust structure, the lower thrust structure rotates