A multifunctional comprehensive cross shearing machine

Abstract

The present invention discloses a multifunctional integrated cross shearing instrument, which relates to the technical field of cross shearing instruments, including a hollow probe rod, wherein the interior of the hollow probe rod is slidably connected to a rotating cylinder, a static pressure probe is fixedly installed on the bottom surface of the rotating cylinder, the static pressure probe is tapered, a hydraulic rod is fixedly installed on the inner top wall of the hollow probe rod, and a stepping motor is fixedly installed on the telescopic end of the hydraulic rod. The present invention is capable of hiding the detection plate by providing a hollow probe rod in conjunction with the rotating cylinder, so that the probe rod can maintain a relatively smooth shape when penetrating into the interior of the soil to be tested, and further, in conjunction with the tapered shape of the static pressure probe, the probe rod can be inserted into the soil more smoothly and quickly, which can greatly reduce the resistance of the crosshead when penetrating into the soil layer and improve the convenience of the crosshead penetration. When the device is inserted into the soil layer using the static pressure probe, static penetration can be performed simultaneously, thereby achieving the effect of increasing the detection function of the cross shearing instrument.

Description

Technical Field

[0001] The present invention relates to the technical field of cross shearing instruments, in particular to a multifunctional comprehensive cross shearing instrument. Background Art

[0002] The cross shear tester is a geotechnical testing instrument that directly tests the undrained shear strength of clay at the construction site. It uses the rotation of a cross plate to test the shear strength of soft clay.

[0003] The existing utility model with authorization announcement number CN105973720A discloses a cross-plate shearing device, including a base plate, support legs, a console, a power supply box, and a power unit; the base plate is provided with a console and a power supply box; the power unit is arranged on the base plate, and the bottom end of the base plate is supported by the support legs; a drill rod is connected under the power unit.

[0004] The above technical solution is more convenient and accurate, and the operation is automated. Compared with the use of strain gauges, the human interference factor is reduced. By adding upper and lower correction cross plates to first destroy the upper and lower bottom soil layers of the cross plate, the error problem caused by uneven damage to the upper and lower bottom surfaces is solved. However, in the above technical solution, the crosshead encounters very large resistance when penetrating the target soil layer, making the crosshead penetration difficult. Moreover, the traditional cross shear instrument has only one shear plate, but actual geotechnical surveys often involve the detection of multiple strata, which requires repeated penetration, affecting the functionality and comprehensive use effect of the cross shear instrument. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of difficulty in penetration of the cross head of a cross shearing instrument and insufficient functionality and comprehensive use effect, and to propose a multifunctional comprehensive cross shearing instrument.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A multifunctional integrated cross shear instrument, comprising a hollow probe rod, the interior of the hollow probe rod is slidably connected to a rotating cylinder, a static pressure probe is fixedly mounted on the bottom surface of the rotating cylinder, the static pressure probe is conical, a hydraulic rod is fixedly mounted on the inner top wall of the hollow probe rod, a stepping motor is fixedly mounted on the telescopic end of the hydraulic rod, the output end of the stepping motor power is fixedly connected to the upper surface of the rotating cylinder, three groups of detection plates arranged at equal distances in the vertical direction are slidably connected to the interior of the rotating cylinder, each group of the detection plates has four detection plates and is equidistantly distributed clockwise, the outer surface of the rotating cylinder is provided with three groups of sliding grooves adapted to the detection plates, and each of the detection plates is slidably connected to the interior of the sliding groove;

[0008] A rotating motor is fixedly installed on the inner top wall of the rotating cylinder, and a screw is fixedly installed on the output end of the rotating motor power. The outer surface of the screw is threadedly connected to three moving blocks, and the moving blocks are rectangular. The outer surface of each moving block is movably hinged to four connecting frames through pins, and each connecting frame is movably hinged to the detection plate through a pin shaft.

[0009] Preferably, a mounting seat is fixedly mounted on the top end of the hollow probe rod, the mounting seat is cylindrical, and a hexagonal positioning groove is formed on the upper surface of the mounting seat.

[0010] Preferably, a connecting plate is fixedly mounted on the outer surface of the mounting seat, and the inner wall of the connecting plate is threadedly connected with six connecting bolts arranged equidistantly in a clockwise direction, and the top end of each connecting bolt passes through the connecting plate and extends to the top of the connecting plate.

[0011] Preferably, a reinforcement ring is fixedly mounted on the bottom surface of the mounting seat, and the inner wall of the reinforcement ring is fixedly connected to the outer surface of the hollow probe rod.

[0012] Preferably, connecting plates are fixedly mounted on both sides of the outer surface of the hollow probe rod, and a positioning column is fixedly mounted on the bottom surface of each connecting plate, and the bottom end of the positioning column is tapered.

[0013] Preferably, three reinforcement plates arranged at equal distances in a clockwise direction are fixedly mounted on the outer surface of the telescopic end of the hydraulic rod, and the bottom surface of each reinforcement plate is fixedly connected to the upper surface of the stepping motor.

[0014] Preferably, a stabilizing ring is fixedly mounted on the outer surface of the hydraulic rod, and the upper surface of the stabilizing ring is fixedly connected to the inner top wall of the hollow probe rod.

[0015] Preferably, a sliding groove is provided on the inner wall of the hollow probe rod, a rotating bearing is slidably connected inside the sliding groove, and the inner wall of the inner ring of the rotating bearing is fixedly connected to the outer surface of the rotating cylinder.

[0016] Preferably, the inner top wall and the inner bottom wall of each sliding groove are fixedly mounted with guide rails, the upper surface and the bottom surface of each detection plate are provided with a track groove, and each guide rail is slidably connected to the inside of the track groove.

[0017] Preferably, a stabilizing bearing is rotatably connected below the outer surface of the screw, and the bottom surface of the outer ring of the stabilizing bearing is fixedly connected to the inner bottom wall of the rotating cylinder.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. The present invention is equipped with a hollow probe rod and a rotating cylinder to hide the detection plate, so that the probe rod can maintain a relatively smooth shape when penetrating into the soil to be tested. Combined with the conical shape of the static pressure probe, the probe rod can be inserted into the soil more smoothly and quickly, which can greatly reduce the resistance of the crosshead when penetrating into the soil layer and improve the convenience of crosshead penetration. When the static pressure probe is used, when the device is inserted into the soil layer, static penetration can be performed simultaneously, thereby achieving the effect of increasing the detection function of the cross shear instrument.

[0020] 2. The present invention is provided with power provided by a hydraulic rod. When the hollow probe rod is inserted into the soil layer, the rotating cylinder can be pushed out downward. After the rotating cylinder is pushed out, the power provided by the rotating motor is used to drive the screw to rotate. Combined with the threaded connection relationship with the moving block and the connecting frame, the detection plate can be pushed out in the horizontal direction. At this time, the stepping motor is used to drive the detection plate to rotate, and the shear strength test of the soil layer can be carried out, so that the detection plate can be quickly extended or retracted, which improves the convenience of crosshead penetration and recovery while ensuring the accuracy of shear strength test.

[0021] 3. The present invention is equipped with three sets of detection plates, which can test the shear strength of soil layers at different levels at one time. There is no need to penetrate the soil layer multiple times to perform shear strength testing, which reduces the labor intensity of the staff and increases the overall functionality and comprehensive use effect of the cross shear instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the hollow probe rod of a multifunctional comprehensive cross shear instrument proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the rotating cylinder structure of a multifunctional integrated cross shearing instrument proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the extended and unfolded structure of the detection plate of a multifunctional integrated cross shear instrument proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the hydraulic rod structure of a multifunctional integrated cross shearing machine proposed in the present invention;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of a hollow probe in a multifunctional integrated cross shearing instrument proposed by the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the rotating cylinder in a multifunctional integrated cross shearing apparatus proposed by the present invention;

[0028] Figure 7This is a schematic diagram of the screw structure in a multifunctional comprehensive cross shearing instrument proposed by the present invention.

[0029] In the figure: 1. Hollow probe rod; 2. Rotating cylinder; 3. Static pressure probe; 4. Hydraulic rod; 5. Stepper motor; 6. Detection plate; 7. Sliding groove; 8. Rotating motor; 9. Screw; 10. Moving block; 11. Connecting frame; 12. Mounting seat; 13. Hexagonal positioning groove; 14. Connecting plate; 15. Connecting bolt; 16. Reinforcement ring; 17. Connecting plate; 18. Positioning column; 19. Reinforcement plate; 20. Stabilizing ring; 21. Sliding groove; 22. Rotating bearing; 23. Guide rail; 24. Track groove; 25. Stable bearing. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0032] Reference Figure 1 and 2 A multifunctional comprehensive cross shear instrument includes a hollow probe rod 1, the interior of the hollow probe rod 1 is slidably connected to a rotating cylinder 2, and a static pressure probe 3 is fixedly installed on the bottom surface of the rotating cylinder 2. The static pressure probe 3 is conical, and the basic principle of the static pressure probe 3 is to use quasi-static force to press a probe with a sensor inside into the soil at a uniform speed. Due to the different hardness of the stratum, the resistance encountered by the probe is also different, so that the required data can be collected. In addition, a mounting seat 12 is fixedly installed on the top of the hollow probe rod 1. At the same time, the mounting seat 12 is cylindrical, and a hexagonal positioning groove 13 is provided on the upper surface of the mounting seat 12. The hexagonal positioning groove 13 is used in conjunction with the mounting seat 12 to facilitate people in locating the position of the device on the conventional probe rod, thereby increasing the accuracy of the installation and fixation of the device.

[0033] Reference Figure 1 and 2A hydraulic rod 4 is fixedly installed on the inner top wall of the hollow probe rod 1, and a stepping motor 5 is fixedly installed on the telescopic end of the hydraulic rod 4. The output end of the power of the stepping motor 5 is fixedly connected to the upper surface of the rotating cylinder 2. In addition, a connecting disk 14 is fixedly installed on the outer surface of the mounting seat 12. At the same time, the inner wall of the connecting disk 14 is threadedly connected with six connecting bolts 15 arranged at equal distances in a clockwise direction, and the top end of each connecting bolt 15 passes through the connecting disk 14 and extends to the top of the connecting disk 14. By combining the connecting disk 14 with the connecting bolt 15, the device can be fixed on a conventional probe rod, which increases the convenience and firmness of the installation and fixation of the device.

[0034] Reference Figure 1 、 2 And 3, the internal sliding connection of the rotating cylinder 2 is provided with three groups of detection plates 6 arranged at equal distances in the vertical direction, each group of detection plates 6 has four detection plates 6 and is distributed at equal distances clockwise. In addition, a reinforcement ring 16 is fixedly installed on the bottom surface of the mounting seat 12. At the same time, the inner wall of the reinforcement ring 16 is fixedly connected to the outer surface of the hollow probe rod 1. The reinforcement ring 16 can increase the connection firmness between the hollow probe rod 1 and the mounting seat 12, making it less likely to produce cracks between the two, thereby increasing the firmness of the fixation of the hollow probe rod 1.

[0035] Reference Figure 1 、 6 and 7, the outer surface of the rotating cylinder 2 is provided with three groups of sliding grooves 7 adapted to the detection plates 6, and each detection plate 6 is slidably connected to the inside of the sliding groove 7. In addition, connecting plates 17 are fixedly installed on both sides of the outer surface of the hollow probe rod 1. At the same time, a positioning column 18 is fixedly installed on the bottom surface of each connecting plate 17, and the bottom end of the positioning column 18 is conical. The connecting plate 17 and the positioning column 18 can cooperate with other positioning equipment to determine the position of the device, so that the device can be pre-positioned when performing soil layer detection, further ensuring the accuracy of soil shear strength detection.

[0036] Reference Figure 2 、 4 and 7. A rotating motor 8 is fixedly mounted on the inner top wall of the rotating cylinder 2, and a screw 9 is fixedly mounted on the output end of the power of the rotating motor 8. In addition, three reinforcing plates 19 arranged equidistantly in a clockwise direction are fixedly mounted on the outer surface of the telescopic end of the hydraulic rod 4. At the same time, the bottom surface of each reinforcing plate 19 is fixedly connected to the upper surface of the stepping motor 5. The reinforcing plate 19 can increase the connection firmness between the stepping motor 5 and the hydraulic rod 4, making it difficult for the connection between the two to loosen, thereby ensuring the normal operation of the stepping motor 5.

[0037] Reference Figure 4 and 7The outer surface of the screw rod 9 is threadedly connected with three moving blocks 10. The moving blocks 10 are rectangular. The outer surface of each moving block 10 is movably hinged with four connecting frames 11 through pins. Each connecting frame 11 is movably hinged with the detection plate 6 through a pin shaft. In addition, a stabilizing ring 20 is fixedly installed on the outer surface of the hydraulic rod 4. At the same time, the upper surface of the stabilizing ring 20 is fixedly connected to the inner top wall of the hollow probe rod 1. The stabilizing ring 20 can increase the stability of the hydraulic rod 4. The stabilizing ring 20 can reinforce the hydraulic rod 4, making it less likely for the hydraulic rod 4 to shake during operation, thereby improving the overall stability of the hydraulic rod 4 during operation.

[0038] Reference Figure 2 and 5 A sliding groove 21 is provided on the inner wall of the hollow probe rod 1, and a rotating bearing 22 is slidably connected inside the sliding groove 21. The inner wall of the inner ring of the rotating bearing 22 is fixedly connected to the outer surface of the rotating cylinder 2. The rotating bearing 22 can assist the rotating cylinder 2 in rotating, making the rotating cylinder 2 rotate more smoothly while reducing the friction between the rotating cylinder 2 and the hollow probe rod 1. Moreover, the sliding groove 21 will not affect the up and down movement of the rotating cylinder 2.

[0039] Reference Figure 6 and 7 The inner top wall and the inner bottom wall of each sliding groove 7 are fixedly installed with a guide rail 23, and the upper surface and the bottom surface of each detection plate 6 are provided with a track groove 24. Each guide rail 23 is slidably connected to the inside of the track groove 24. By sliding the guide rail 23 inside the track groove 24, the stability of the detection plate 6 when extending and retracting can be increased, making it less likely for the detection plate 6 to deviate when expanding and contracting.

[0040] Reference Figure 6 and 7 A stabilizing bearing 25 is rotatably connected below the outer surface of the screw 9. The bottom surface of the outer ring of the stabilizing bearing 25 is fixedly connected to the inner bottom wall of the rotating cylinder 2. The stabilizing bearing 25 can assist the screw 9 in rotating, reducing the swinging generated when the screw 9 rotates, making the rotation of the screw 9 more stable and reliable.

[0041] The specific working principle of the present invention is as follows:

[0042] When in use, first use the mounting base 12 to cooperate with the hexagonal positioning groove 13, the connecting plate 14 and the connecting bolt 15 to fix the device on the conventional probe rod. When the shear strength test of the soil layer is required, it is only necessary to insert the hollow probe rod 1 into the soil layer to be tested. Since the hollow probe rod 1 and the static pressure probe 3 form a relatively small resistance and an overall rounded shape, the smoothness of the penetration of the hollow probe rod 1 is greatly increased, and no additional penetration equipment is required, which also reduces the damage to the surface environment of the soil layer or green plants.

[0043] After the hollow probe 1 penetrates the soil layer, the power provided by the hydraulic rod 4 can be used to push the stepper motor 5 and the rotating cylinder 2 downward. During this process, the static pressure probe 3 can be used to detect various values ​​of the soil layer under the uniform speed compression state, thereby increasing the detection data volume of the cross shear instrument and enhancing the functionality of the cross shear instrument.

[0044] When the rotating cylinder 2 is extended, the power provided by the rotating motor 8 drives the screw 9 to rotate, which can drive the moving block 10 and the connecting frame 11 to move downward, and then cooperate with the movable hinge relationship between the connecting frame 11 and the detection plate 6. When the connecting frame 11 and the moving block 10 are horizontally perpendicular, the detection plate 6 can be pushed out horizontally through the sliding slot 7. At this time, the stepping motor 5 is used to drive the rotating cylinder 2 and the detection plate 6 to rotate, so that the shear strength of the soil layer can be tested. The above operation can be repeated in the reverse direction to retract the detection plate 6 and the rotating cylinder 2, thereby increasing the smoothness of the crosshead extraction and improving the convenience of the crosshead recovery.

[0045] And because the detection plate 6 is in the form of three groups of cross heads, it is possible to perform shear strength tests on soil layers of different depths without having to penetrate the soil layer multiple times, further reducing damage to the soil layer and increasing the working efficiency of the cross shear instrument, making the overall functionality and comprehensive use effect of the cross shear instrument more superior.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A multifunctional integrated cross shearing instrument, comprising a hollow probe (1), characterized in that: The interior of the hollow probe (1) is slidably connected to a rotating cylinder (2), a static pressure probe (3) is fixedly installed on the bottom surface of the rotating cylinder (2), and the static pressure probe (3) is conical. A hydraulic rod (4) is fixedly installed on the inner top wall of the hollow probe (1), and a stepper motor (5) is fixedly installed on the telescopic end of the hydraulic rod (4). The output end of the power of the stepper motor (5) is fixedly connected to the upper surface of the rotating cylinder (2). The interior of the rotating cylinder (2) is slidably connected to three groups of detection plates (6) arranged at equal distances in the vertical direction, and each group of the detection plates (6) is four in number and distributed at equal distances in a clockwise direction. The outer surface of the rotating cylinder (2) is provided with three groups of sliding grooves (7) adapted to the detection plates (6), and each of the detection plates (6) is slidably connected to the inside of the sliding groove (7); A rotating motor (8) is fixedly mounted on the inner top wall of the rotating cylinder (2), a screw (9) is fixedly mounted on the output end of the power of the rotating motor (8), the outer surface of the screw (9) is threadedly connected to three moving blocks (10), the moving blocks (10) are rectangular, the outer surface of each of the moving blocks (10) is movably hinged to four connecting frames (11) through a pin, and each of the connecting frames (11) is movably hinged to the detection plate (6) through a pin shaft.

2. A multifunctional integrated cross shearing instrument according to claim 1, characterized in that: A mounting seat (12) is fixedly mounted on the top end of the hollow probe rod (1); the mounting seat (12) is cylindrical, and a hexagonal positioning groove (13) is provided on the upper surface of the mounting seat (12).

3. A multifunctional integrated cross shearing instrument according to claim 2, characterized in that: A connecting plate (14) is fixedly mounted on the outer surface of the mounting seat (12), and six connecting bolts (15) arranged at equal distances in a clockwise direction are threadedly connected to the inner wall of the connecting plate (14), and the top end of each connecting bolt (15) passes through the connecting plate (14) and extends to the top of the connecting plate (14).

4. A multifunctional integrated cross shearing instrument according to claim 2, characterized in that: A reinforcement ring (16) is fixedly mounted on the bottom surface of the mounting seat (12), and the inner wall of the reinforcement ring (16) is fixedly connected to the outer surface of the hollow probe rod (1).

5. The multifunctional integrated cross shearing machine according to claim 1, characterized in that: Connecting plates (17) are fixedly mounted on both sides of the outer surface of the hollow probe (1), and a positioning column (18) is fixedly mounted on the bottom surface of each connecting plate (17), wherein the bottom end of the positioning column (18) is tapered.

6. The multifunctional integrated cross shearing machine according to claim 1, characterized in that: Three reinforcement plates (19) arranged equidistantly in a clockwise direction are fixedly mounted on the outer surface of the telescopic end of the hydraulic rod (4), and the bottom surface of each reinforcement plate (19) is fixedly connected to the upper surface of the stepping motor (5).

7. The multifunctional integrated cross shearing machine according to claim 1, characterized in that: A stabilizing ring (20) is fixedly mounted on the outer surface of the hydraulic rod (4), and the upper surface of the stabilizing ring (20) is fixedly connected to the inner top wall of the hollow probe rod (1).

8. The multifunctional integrated cross shearing machine according to claim 1, characterized in that: A sliding groove (21) is provided on the inner wall of the hollow probe rod (1), a rotating bearing (22) is slidably connected inside the sliding groove (21), and the inner wall of the inner ring of the rotating bearing (22) is fixedly connected to the outer surface of the rotating cylinder (2).

9. The multifunctional integrated cross shearing machine according to claim 1, characterized in that: A guide rail (23) is fixedly mounted on the inner top wall and the inner bottom wall of each sliding groove (7), a track groove (24) is provided on the upper surface and the bottom surface of each detection plate (6), and each guide rail (23) is slidably connected inside the track groove (24).

10. The multifunctional integrated cross shearing machine according to claim 1, characterized in that: A stabilizing bearing (25) is rotatably connected below the outer surface of the screw (9), and the bottom surface of the outer ring of the stabilizing bearing (25) is fixedly connected to the inner bottom wall of the rotating cylinder (2).

Images