Portable shear apparatus

Abstract

The utility model relates to the technical field of reconnaissance, in particular to a portable shearing instrument which comprises a supporting component, a shearing component and a torque sensor, the supporting component comprises a plurality of supporting legs, the supporting legs are obliquely arranged outwards, and the included angle between each supporting leg and the vertical direction is 8-20 degrees; the shearing component is rotationally connected to the supporting component, the shearing component comprises 6-8 shearing plates, and the shearing plates are arranged in a radial shape along the center line of the supporting component; and the torque sensor is used for collecting the torque of the shearing component. According to the device, the thickness of the shear plate can be effectively reduced on the premise that the bearing torque is not reduced, so that disturbance generated when the shear plate is inserted into a soil body is reduced, the shear plate can be perpendicularly cut into the soil body, meanwhile, the influence on a measurement result during torsion is reduced, and the measurement result is more accurate. In addition, due to the fact that the shear apparatus is easier to cut into a soil body, the size and the weight of the shear apparatus can be reduced, the portability of the apparatus is improved, and meanwhile the testing accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of exploration technology, and in particular to a portable shearing device. Background Technology

[0002] To ensure construction safety, a series of geotechnical mechanics tests must be conducted on the construction site before construction begins. A vane shear tester is often used to determine the undrained shear strength of soft clay, but the commonly used vane shear testers are large in size and inconvenient to carry. Utility Model Content

[0003] The purpose of this invention is to solve the problem that the vane shearing apparatus used for testing the shear strength of soft clay in the prior art is large in size and inconvenient to carry, and to provide a portable shearing apparatus.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A portable shearing device, comprising:

[0006] The support component includes several legs, which are inclined outwards and the angle between the legs and the vertical is 8-20°.

[0007] A shearing component is rotatably connected to the supporting component. The shearing component includes 6-8 shearing plates arranged radially along the centerline of the supporting component. The shearing component can be rotated to raise or lower relative to the supporting component.

[0008] A torque sensor is used to collect the torque of the shearing component.

[0009] This invention discloses a portable shearing device. A support component is used to stabilize the device on soft clay. While the outward angle of the legs is not adjustable, the extension range is small, preventing the overall device from becoming too large even when not retracted. This eliminates the need for leg adjustments during each use, improving testing efficiency. The shearing component rotates to cut into the soil and generate torque. Using 6-8 radially arranged shearing plates, more plates are used than in existing technologies, but the arrangement avoids insufficient soil between adjacent plates due to overly dense spacing. This allows for effective reduction of the shearing plate thickness without compromising the bearing torque, reducing disturbance during soil insertion and facilitating vertical cutting. It also minimizes the impact of torsion on measurement results, leading to more accurate measurements. Furthermore, the easier cutting into the soil reduces the size and weight of the shearing device, improving portability, miniaturization, and weight reduction, while simultaneously enhancing testing accuracy.

[0010] Preferably, the thickness of the shearing plate is 2-3 mm.

[0011] More preferably, all of the shear plates have the same shape and size.

[0012] Preferably, all of the shear plates are integrally formed.

[0013] Preferably, it also includes a rotating shaft, the rotation of which can drive the shearing component to rotate.

[0014] More preferably, one end of the rotating shaft is connected to a mounting plate, and the shearing component is connected to the side of the mounting plate away from the rotating shaft.

[0015] More preferably, the other end of the rotating shaft is connected to a handle, and the shaft of the handle is coaxial with the rotating shaft.

[0016] More preferably, the side of the handle away from the pivot is convex.

[0017] More preferably, the support component includes a sleeve, which is rotatably connected to the outside of the rotating shaft, and the support leg is connected to the sleeve.

[0018] More preferably, the cantilever end of the outrigger is connected to a support plate.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. The portable shearing device described in this utility model, compared to existing technologies, utilizes more shearing plates. This allows for effective reduction of the shearing plate thickness without compromising the bearing torque, thereby reducing disturbance when the shearing plates are inserted into the soil. This facilitates vertical cutting into the soil and minimizes the impact of torsion on measurement results, leading to more accurate measurements. Furthermore, the easier cutting into the soil reduces the size and weight of the shearing device, improving portability, miniaturization, and weight reduction, while simultaneously enhancing testing accuracy. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a portable shearing device in the embodiment. Figure 1 ;

[0022] Figure 2 This is a three-dimensional schematic diagram of a portable shearing device in the embodiment. Figure 2 ;

[0023] Figure 3 This is a front view of a portable shearing device according to the embodiment. Figure 1 ;

[0024] Figure 4This is a front view of a portable shearing device according to the embodiment. Figure 2 .

[0025] Icons: 1-Outrigger; 11-Support plate; 2-Shear plate; 3-Torque sensor; 4-Shaft; 41-Mounting plate; 5-Handle; 6-Sleeve. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to experimental examples and specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of this utility model to the following embodiments; all technologies implemented based on the content of this utility model fall within the scope of this utility model.

[0028] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0030] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0031] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0032] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0033] Example

[0034] The portable shearing device used in this embodiment, such as... Figures 1-3 As shown, it includes:

[0035] The support component includes several legs 1, which are inclined outwards and the angle between the legs 1 and the vertical is 8-20°.

[0036] A shearing component is rotatably connected to the supporting component. The shearing component includes 6-8 shearing plates 2, which are arranged radially along the center line of the supporting component. The shearing component can be rotated to raise or lower relative to the supporting component.

[0037] Torque sensor 3 is used to collect the torque of the shearing component.

[0038] For example, in this embodiment, there are 6 shear plates 2. All shear plates 2 have the same shape and size and are evenly distributed. The thickness of the shear plates 2 is 2-3mm. All shear plates 2 are integrally formed, forming a cross-shaped shearing structure. The structure is connected to one end of the rotating shaft 4 via a mounting plate 41. The mounting plate 41 has a circular cross-section, and its radius is greater than or adapted to the radial length of the shear plates 2 along the mounting plate 41, so as to provide better support when shearing soil. The rotation of the rotating shaft 4 can drive the shearing component to rotate and thus raise it to the height of the support leg 1 (e.g., Figure 3 (as shown) or lowered to below outrigger 1 (e.g.) Figure 4(As shown) It can then enter the soil. The other end of the rotating shaft 4 is connected to a handle 5. The shaft of the handle 5 is coaxially set with the rotating shaft 4. The planar size of the handle 5 is adapted to or smaller than the planar size corresponding to the maximum opening of the support leg 1. Since it is soft clay, the shearing force required for rotation is usually less than that for other geological conditions. Therefore, the use of this coaxial handle 5 can ensure testing while reducing the planar size of the shearing instrument. Several grooves are evenly distributed on the side of the handle 5. The side of the handle 5 away from the rotating shaft 4 is convex. A sleeve 6 is fitted on the rotating shaft 4. 4 can rotate relative to the sleeve 6. Three connecting plates are evenly distributed on the outer circumference of the sleeve 6. Each connecting plate is equipped with a support leg 1. The support leg 1 is arranged outwardly. For example, the angle between the support leg 1 and the vertical (rotation axis of the shearing component) is 10°, that is, the angle between the support leg 1 and the rotating shaft 4 is 10°. The end of the support leg 1 away from the sleeve 6 is connected to a support plate 11, which increases the support area between the support component and the soft clay, thereby providing more stable support and preventing the support component from cutting into the soft clay during operation, which would affect the accuracy of the test results.

[0039] In use, outrigger 1 is supported on the soil surface, and turning handle 5 causes the shear plate to rotate and descend into the soil. Figure 4 As shown.

[0040] In some optional embodiments, the number of legs 1 can be set according to the actual needs of the device, and the cross-sectional shape and size of the legs 1 can be set according to the actual needs.

[0041] In some alternative embodiments, the shaft of handle 5 can be as follows: Figure 1 It is shown as being connected to the rotating shaft 4 via a flange.

[0042] In some alternative embodiments, the outer edge of the shear plate 2 does not need to be flush with the outer edge of the mounting plate 41.

[0043] In some alternative embodiments, the size of the support plate 11 is set as needed, but should avoid affecting the use of the shearing plate 2 and should also avoid being too large, thereby increasing the size of the shearing device. The support plate 11 may have a polygonal cross section.

[0044] The portable shearing device described in this invention, compared to existing technologies, utilizes more shearing plates 2. This allows for effective reduction of the shearing plate 2's thickness without compromising the bearing torque, thereby reducing disturbance when the shearing plate 2 is inserted into the soil. This facilitates the vertical cutting of the shearing plate 2 into the soil and reduces the impact of torsion on the measurement results, leading to more accurate measurements. Furthermore, the easier cutting into the soil reduces the size and weight of the shearing device, improving portability, miniaturization, and weight reduction, while simultaneously enhancing testing accuracy.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable shear rig, characterized in that It comprises: a support component comprising several legs (1) which are arranged obliquely outward, and the angle between the legs (1) and the vertical is 8-20°; a shearing component which is rotatably connected to the support component, and the shearing component comprises 6-8 shearing plates (2) which are arranged radially along the center line of the support component, and the shearing component can be raised or lowered relative to the support component in rotation; a torque sensor (3) for collecting the torque of the shearing component.

2. The portable shear rig of claim 1, wherein, The thickness of the shearing plate (2) is 2-3mm.

3. The portable shear rig of claim 2, wherein, The shape and size of all the shearing plates (2) are the same.

4. The portable shear rig of claim 3, wherein, All the shearing plates (2) are integrally formed.

5. A portable shear apparatus according to any one of claims 1 to 4, wherein It also comprises a rotating shaft (4) which can drive the shearing component to rotate in rotation.

6. The portable shear rig of claim 5, wherein, One end of the rotating shaft (4) is connected with a mounting plate (41), and the shearing component is connected to the side of the mounting plate (41) away from the rotating shaft (4).

7. The portable shear apparatus of claim 5, wherein, The other end of the rotating shaft (4) is connected with a handle (5), and the shaft of the handle (5) is coaxially arranged with the rotating shaft (4).

8. The portable shear rig of claim 7, wherein, The side of the handle (5) away from the rotating shaft (4) is convex.

9. The portable shear apparatus of claim 5, wherein, The support component comprises a sleeve (6) which is rotatably connected to the outside of the rotating shaft (4), and the legs (1) are connected to the sleeve (6).

10. The portable shear apparatus of claim 5, wherein, The cantilever end of the leg (1) is connected with a support plate (11).

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