Soil sample shear test detection device

Abstract

The utility model relates to the technical field of highway engineering inspection, and discloses a soil sample shear test detection device, which is characterized in that the left end of the upper end surface of a box body is fixedly connected with a support frame, and the lower end surface of the support frame is fixedly connected with a telescopic cylinder; the right end of the upper end face of the box body is fixedly connected with an electric rotating disc, and the first limiting device is arranged on the upper end face of the electric rotating disc. The first limiting device is composed of a limiting column, a shell, an end face thread, a motor, a disc, a disc face thread, a first rotating shaft, a gear cylinder, a belt wheel, a transmission belt and a base. The inner wall face of the base is connected with the outer end face of the disc through a bearing. The upper end face of the disc is fixedly connected with the end face threads. According to the device, a shear test can be performed on a plurality of soil samples at the same time, so that the experimental period is greatly shortened, the comparability of data is improved, the sample box can be cleaned after the test is finished, subsequent detection and use are facilitated, and the device is simple and stable in structure and easy to implement.

Description

Technical Field

[0001] The utility model relates to the technical field of highway engineering inspection, in particular to a soil sample shear test detection device. Background Art

[0002] Highway engineering covers the survey, measurement, design, construction, maintenance, and management of highway structures, including roadbeds, pavements, and bridges. During the construction process, direct shear tests on soil samples are required to verify the strength and shear force of the soil samples and optimize the selection of soil samples. However, existing soil shear test devices still have certain defects, such as:

[0003] The "Soil Sample Shear Test Detection Device" with application number CN202120492531.2 includes a placement table with an L-shaped plate fixedly connected to the top of the placement table. The utility model realizes the lifting and storage of the universal wheel by cooperating with a push plate, a trapezoidal block, a lifting plate, a clamping block, a clamping slot and a first return spring, which facilitates the movement of the device and saves the physical strength of the staff. The push plate is fixed by the first wedge block and the second wedge block. The device can only perform a shear test on one soil sample at a time. When the shear test volume is large, the staff needs to frequently disassemble and assemble the sample box, which results in low work efficiency and cannot meet the use requirements. In view of this, a soil sample shear test detection device is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a soil sample shear test detection device to solve the problem in the above background technology that the existing soil sample shear test detection device cannot perform shear test detection on multiple soil samples at the same time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a box body and a No. 1 limit device, characterized in that: the left end of the upper end surface of the box body is fixedly connected to a support frame, and the lower end surface of the support frame is fixedly connected to a telescopic cylinder; the right end of the upper end surface of the box body is fixedly connected to an electric turntable, and the upper end surface of the electric turntable is provided with the No. 1 limit device; the No. 1 limit device is composed of a limit column, a shell, an end surface thread, a motor, a disc, a disc surface thread, a No. 1 rotating shaft, a gear cylinder, a pulley, a transmission belt and a base; the inner portion of the base The wall surface is connected to the outer end face bearing of the disc; the upper end face of the disc is fixedly connected to the end face thread, and the lower end face of the disc is fixedly connected to the upper end face of the disc thread; the upper end face of the base is fixedly connected to the lower end face of the shell; the lower end faces of the limit columns are provided with thread grooves, and the limit columns are threadedly connected to the end face threads through the thread grooves; the upper end face of the shell is provided with moving grooves corresponding to the limit columns, and the limit columns are located in the moving grooves; the upper end face of the electric turntable is also provided with a second limit device and a third limit device The No. 2 limiting device, the No. 3 limiting device and the No. 4 limiting device are all identical in main structure to the No. 1 limiting device, and the motor is only arranged in the No. 1 limiting device; the No. 2 limiting device is located at the right end of the No. 1 limiting device, and the No. 1 limiting device, the No. 2 limiting device, the No. 3 limiting device and the No. 4 limiting device are symmetrically arranged in pairs about the center of the electric turntable; the left end of the inner bottom surface of the base of the No. 1 limiting device is fixedly connected to the lower end surface of the motor , and the motor shaft end is fixedly connected to the No. 1 rotating shaft; the No. 1 rotating shaft passes through the right end surface of the No. 1 limiting device and the right end surface of the No. 2 limiting device, and the right end of the No. 1 rotating shaft is connected to the inner wall bearing of the right end of the No. 2 limiting device; the No. 1 rotating shaft is fitted with the gear cylinder, and the No. 1 rotating shaft is fitted with the pulley; the pulley is located at the center of the horizontal distance between the No. 1 limiting device and the No. 2 limiting device, and the gear cylinder is symmetrically arranged about the pulley; the gear cylinder is threadedly connected to the disk surface.

[0006] The above technical solution is adopted to ensure the stability of the overall structure.

[0007] As an optimal technical solution of the present invention, the left end bearing of the inner wall surface of the base of the No. 3 limiting device is connected to the No. 2 rotating shaft, and the right end of the No. 2 rotating shaft is connected to the bearing of the inner wall surface of the right end of the base of the No. 4 limiting device.

[0008] The above technical solution is adopted to facilitate the transmission of mechanical power.

[0009] As a preferred technical solution of the present invention, the pulley is mounted at the horizontal center of the second rotating shaft, and the first rotating shaft and the second rotating shaft are connected by the transmission belt.

[0010] The adoption of the above technical solution facilitates internal mechanical power transmission.

[0011] As a preferred technical solution of the present invention, a positioning column is fixedly connected to the center of the upper end surface of the shell, and a sample box is provided on the upper end surface of the shell; and a groove corresponding to the positioning column is provided on the lower end surface of the sample box.

[0012] The above technical solution is adopted to facilitate fixing of the sample box.

[0013] As a preferred technical solution of the present invention, the lower end surface of the telescopic cylinder is fixedly connected to a pressure plate, and the cross-sectional area of ​​the pressure plate is equal to the cross-sectional area of ​​the sample box.

[0014] The above technical solution is adopted to facilitate shear testing of soil samples.

[0015] As a preferred technical solution of the present utility model, a sample box is provided in the box body.

[0016] The above technical solution is adopted to facilitate the storage of soil samples.

[0017] Compared with the existing technology, the beneficial effects of the present invention are: the device can perform shear tests on multiple soil samples at the same time, which not only greatly shortens the experimental period but also improves the comparability of data. After the test, the sample box can be cleaned, which is convenient for subsequent testing. The structure is simple and stable, and it is easy to implement.

[0018] 1. When in use, first place the soil sample in the sample box on the No. 1 limit device, No. 2 limit device, No. 3 limit device, and No. 4 limit device in sequence, then start the motor, the motor drives the No. 1 rotating shaft to rotate, the No. 1 rotating shaft drives the gear cylinder to rotate, the gear cylinder drives the disc to rotate by engaging with the disc surface thread, and the disc drives the limit column to move toward the center of the shell through the end surface thread to clamp and fix the sample box;

[0019] 2. At the same time, the No. 1 rotating shaft drives the No. 2 rotating shaft to rotate through the pulley and the transmission belt, so that the limit columns on the No. 3 limit device and the No. 4 limit device clamp and fix the sample box on the limit device; after the fixation is completed, the electric turntable drives the limit device to rotate, and when the sample box on the No. 1 limit device moves to the bottom of the telescopic cylinder, the telescopic cylinder drives the pressure plate to move vertically downward to perform a shear test on the soil sample in the sample box; after the initial shear test is completed, the telescopic cylinder drives the pressure plate to reset, and then the electric turntable continues to rotate to move the sample box on the No. 2 limit device to the bottom of the telescopic cylinder, and then repeats the above process to perform shear tests on the soil samples in turn. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the connection structure between the electric turntable and the No. 1 limit device of the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure between the No. 1 limiting device and the No. 2 limiting device of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the housing and the sample box of the utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the housing and the positioning column of the utility model.

[0025] In the figure: 1. Box body; 2. Support frame; 3. Telescopic cylinder; 4. Sample box; 5. Limit device No. 1; 501. Limit column; 502. Shell; 503. End face thread; 504. Motor; 505. Disc; 506. Disc thread; 507. Rotating shaft No. 1; 508. Gear cylinder; 509. Pulley; 510. Transmission belt; 511. Base; 6. Electric turntable; 7. Sample box; 8. Positioning column; 9. Limit device No. 2; 10. Limit device No. 3; 11. Limit device No. 4; 12. Rotating shaft No. 2. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1-5The technical solution of the utility model is as follows: a soil sample shear test detection device, including a box body 1 and a No. 1 limit device 5, characterized in that: the left end of the upper end surface of the box body 1 is fixedly connected to the support frame 2, and the lower end surface of the support frame 2 is fixedly connected to the telescopic cylinder 3; the right end of the upper end surface of the box body 1 is fixedly connected to the electric turntable 6, and the upper end surface of the electric turntable 6 is provided with a No. 1 limit device 5; the No. 1 limit device 5 consists of a limit column 501, a shell 502, an end surface thread 503, a motor 504, a disc 505, a disc surface thread 506, a No. 1 rotating shaft 507, a gear cylinder 508, a pulley 509, a transmission The belt 510 and the base 511 are composed; the inner wall surface of the base 511 is connected to the outer end face bearing of the disc 505; the upper end face of the disc 505 is fixedly connected to the end face thread 503, and the lower end face of the disc 505 is fixedly connected to the upper end face of the disc thread 506; the upper end face of the base 511 is fixedly connected to the lower end face of the shell 502; the lower end faces of the limiting posts 501 are provided with thread grooves, and the limiting posts 501 are threadedly connected to the end face threads 503 through the thread grooves; the upper end face of the shell 502 is provided with movable grooves corresponding to the limiting posts 501, and the limiting posts 501 are all located in the movable grooves; the upper end face of the electric turntable 6 is also provided with There are two limit devices 9, three limit devices 10 and four limit devices 11; the two limit devices 9, three limit devices 10 and four limit devices 11 are all the same as the main structure of the one limit device 5, and only the one limit device 5 is provided with a motor 504; the two limit devices 9 are located at the right end of the one limit device 5, and the one limit device 5, the two limit devices 9, the three limit devices 10 and the four limit devices 11 are symmetrically arranged in pairs about the center of the electric turntable 6; the left end of the inner bottom surface of the base 511 of the one limit device 5 is fixedly connected to the lower end surface of the motor 504, and the motor The shaft end of the machine 504 is fixedly connected to the No. 1 rotating shaft 507; the No. 1 rotating shaft 507 passes through the right end surface of the No. 1 limiting device 5 and the right end surface of the No. 2 limiting device 9, and the right end of the No. 1 rotating shaft 507 is connected to the inner wall surface of the right end of the No. 2 limiting device 9 with a bearing; the No. 1 rotating shaft 507 is fitted with a gear cylinder 508, and the No. 1 rotating shaft 507 is fitted with a pulley 509; the pulley 509 is located at the center of the horizontal distance between the No. 1 limiting device 5 and the No. 2 limiting device 9, and the gear cylinder 508 is symmetrically arranged about the pulley 509; the gear cylinder 508 is transmission-connected to the disk thread 506 to ensure the stability of the overall structure;

[0028] The left end of the inner wall surface of the base 511 of the third limiting device 10 is connected to the second rotating shaft 12 by a bearing, and the right end of the second rotating shaft 12 is connected to the right end inner wall surface of the base 511 of the fourth limiting device 11 by a bearing, so as to facilitate the transmission of mechanical power;

[0029] A pulley 509 is mounted at the horizontal center of the second rotating shaft 12, and the first rotating shaft 507 and the second rotating shaft 12 are connected by a transmission belt 510 to facilitate internal mechanical power transmission;

[0030] A positioning post 8 is fixedly connected to the center of the upper end surface of the housing 502, and a sample box 7 is provided on the upper end surface of the housing 502; a groove corresponding to the positioning post 8 is provided on the lower end surface of the sample box 7 to facilitate fixing the sample box 7;

[0031] The lower end surface of the telescopic cylinder 3 is fixedly connected to the pressure plate, and the cross-sectional area of ​​the pressure plate is equal to the cross-sectional area of ​​the sample box 7, which is convenient for shear testing of soil samples;

[0032] A sample box 4 is provided in the box body 1 for storing soil samples;

[0033] Working principle: When in use, first place the soil sample in the sample box 7 on the No. 1 limiting device 5, the No. 2 limiting device 9, the No. 3 limiting device 10, and the No. 4 limiting device 11 in sequence, then start the motor 504, the motor 504 drives the No. 1 rotating shaft 507 to rotate, the No. 1 rotating shaft 507 drives the gear cylinder 508 to rotate, the gear cylinder 508 drives the disc 505 to rotate by engaging with the disc thread 506, and the disc 505 drives the limiting column 501 to move toward the center of the shell 502 through the end surface thread 503, thereby clamping and fixing the sample box 7;

[0034] At the same time, the No. 1 rotating shaft 507 drives the No. 2 rotating shaft 12 to rotate through the pulley 509 and the transmission belt 510, so that the limiting columns 501 on the No. 3 limiting device 10 and the No. 4 limiting device 11 clamp and fix the sample box 7 on the limiting device; after fixation, the electric turntable 6 drives the limiting device to rotate, and when the sample box 7 on the No. 1 limiting device 5 moves to just below the telescopic cylinder 3, the telescopic cylinder 3 drives the pressure plate to move vertically downward to perform a shear test on the soil sample in the sample box 7; after the initial shear test is completed, the telescopic cylinder 3 drives the pressure plate to reset, and then the electric turntable 6 continues to rotate, moving the sample box 7 on the No. 2 limiting device 9 to just below the telescopic cylinder 3, and then repeats the above process to perform shear tests on the soil samples in sequence.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil sample shear test detection device, comprising a box (1) and a first limit device (5), characterized in that: The left end of the upper end surface of the box body (1) is fixedly connected to a support frame (2), and the lower end surface of the support frame (2) is fixedly connected to a telescopic cylinder (3); the right end of the upper end surface of the box body (1) is fixedly connected to an electric turntable (6), and the upper end surface of the electric turntable (6) is provided with the first limiting device (5); the first limiting device (5) is composed of a limiting column (501), a housing (502), an end surface thread (503), a motor (504), a disc (505), a disc surface thread (506), a first rotating shaft (507), a gear cylinder (508), a pulley (509), a transmission belt (510) and a base (511); the inner wall surface of the base (511) is connected to the outer end surface bearing of the disc (505). The upper end face of the disc (505) is fixedly connected to the end face thread (503), and the lower end face of the disc (505) is fixedly connected to the upper end face of the disc thread (506); the upper end face of the base (511) is fixedly connected to the lower end face of the shell (502); the lower end faces of the limiting posts (501) are all provided with thread grooves, and the limiting posts (501) are threadedly connected to the end face thread (503) through the thread grooves; the upper end face of the shell (502) is provided with movable grooves corresponding to the limiting posts (501), and the limiting posts (501) are all located in the movable grooves; the upper end face of the electric turntable (6) is also provided with a second limiting device (9), a third limiting device (10), and a fourth limiting device (1 1); the second limiting device (9), the third limiting device (10) and the fourth limiting device (11) are all identical in main structure to the first limiting device (5), and the motor (504) is only provided in the first limiting device (5); the second limiting device (9) is located at the right end of the first limiting device (5), and the first limiting device (5), the second limiting device (9), the third limiting device (10) and the fourth limiting device (11) are symmetrically provided in pairs with respect to the center of the electric turntable (6); the left end of the inner bottom surface of the base (511) of the first limiting device (5) is fixedly connected to the lower end surface of the motor (504), and the shaft end of the motor (504) is fixedly connected to the lower end surface of the motor (504). The first rotating shaft (507) is fixedly connected; the first rotating shaft (507) passes through the right end surface of the first limiting device (5) and the right end surface of the second limiting device (9), and the right end of the first rotating shaft (507) is connected to the inner wall surface of the right end of the second limiting device (9) by a bearing; the gear cylinder (508) is mounted on the first rotating shaft (507), and the pulley (509) is mounted on the first rotating shaft (507); the pulley (509) is located at the center of the horizontal distance between the first limiting device (5) and the second limiting device (9), and the gear cylinder (508) is symmetrically arranged with respect to the pulley (509); the gear cylinder (508) is transmission-connected to the disk thread (506).

2. A soil sample shear test detection device according to claim 1, characterized in that: The left end bearing of the inner wall surface of the base (511) of the No. 3 limiting device (10) is connected to the No. 2 rotating shaft (12), and the right end of the No. 2 rotating shaft (12) is connected to the right end bearing of the inner wall surface of the base (511) of the No. 4 limiting device (11).

3. A soil sample shear test detection device according to claim 2, characterized in that: The pulley (509) is mounted on the horizontal center of the second rotating shaft (12), and the first rotating shaft (507) and the second rotating shaft (12) are connected in transmission via the transmission belt (510).

4. A soil sample shear test detection device according to claim 3, characterized in that: A positioning column (8) is fixedly connected to the center of the upper end surface of the shell (502), and a sample box (7) is provided on the upper end surface of the shell (502); and a groove corresponding to the positioning column (8) is provided on the lower end surface of the sample box (7).

5. The soil sample shear test detection device according to claim 4, characterized in that: The lower end surface of the telescopic cylinder (3) is fixedly connected to a pressure plate, and the cross-sectional area of ​​the pressure plate is equal to the cross-sectional area of ​​the sample box (7).

6. A soil sample shear test detection device according to claim 5, characterized in that: A sample box (4) is provided in the box body (1).

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