Tensile test device for root system of herbaceous plant
By designing a root tensile testing device for herbaceous plants and using a combination of stepper motors and laser ranging, the problem of high-precision measurement of the tensile mechanical properties of herbaceous plant roots in the field was solved. This achieved accurate root tensile measurement and data accuracy, while reducing equipment costs and the risk of damage.
Patent Information
- Application Number
- CN202422665894.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-01
AI Technical Summary
Existing technologies make it difficult to measure the tensile mechanical properties of herbaceous plant roots with high precision in the field. Furthermore, existing equipment is expensive and easily damages the roots, resulting in inaccurate test results and low success rates.
A tensile testing device for herbaceous plant roots was designed, which combines stepper motor drive, laser rangefinder and digital display tensile gauge to achieve precise tensile and displacement measurement of herbaceous plant roots, ensuring the accuracy and reliability of test data.
This technology enables stable and precise control of root tensile testing of herbaceous plants, improves measurement accuracy and test data accuracy, and reduces equipment costs and the risk of damage.
Smart Images
Figure CN223485686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of root soil stabilization, and in particular to a root tensile testing device for herbaceous plants. Background Technology
[0002] Plants are a primary means of controlling soil erosion and water loss. The interwoven and interconnected root systems of plants within the soil constitute a crucial mechanism for soil stabilization. Therefore, clarifying the tensile mechanical properties of plant roots is essential for understanding their soil-stabilizing mechanisms. Currently, the determination of plant root tensile mechanical properties primarily utilizes a universal testing machine indoors, while outdoor methods mainly employ in-situ shearing with a shear chamber and external tensile sensors. While the former offers high measurement accuracy, its design for industrial materials results in a complex and bulky structure, limiting its application to specific locations and hindering field testing of plant root tensile strength. Furthermore, the amount of root samples collected is limited compared to field testing. Additionally, the prolonged time spent away from soil during the process of bringing plant roots back to the laboratory can lead to dehydration and changes in tensile mechanical properties, resulting in test results that do not fully reflect the true tensile mechanical properties. While the latter method can realistically study the soil-fixing mechanical effects of roots, it has requirements on root size and is only suitable for tensile tests on coarse roots, making it difficult to determine the biomechanical properties of hairy roots. Furthermore, shear box field tensile tests cannot test the elastic tension of roots. In addition, these large, specialized experimental devices lack root clamping devices, easily damaging roots and reducing the success rate of experiments. Of course, both types of experimental equipment are also quite expensive, making them unaffordable for many researchers. Therefore, a root tensile testing device for herbaceous plants is proposed. Utility Model Content
[0003] To overcome the above shortcomings, this utility model provides a herbaceous plant root tensile testing device, which aims to improve the problem of fluctuations in test data in the prior art.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a herbaceous plant root tensile testing device, comprising a support plate, a fixing plate fixedly connected to the upper left side of the support plate, a clamp assembly provided on the left side of the fixing plate, and a linear track assembly installed on the upper right side of the support plate;
[0005] The linear track assembly includes two metal side plates, both of which are fixedly connected to the upper side of the support plate. A metal base plate is fixedly connected between the bottoms of the two metal side plates. Two smooth guide rails are fixedly connected to the upper side of the two metal side plates. A slide table is slidably connected between the two smooth guide rails. A digital display force gauge is fixedly connected to the upper side of the slide table. The clamping assembly is located to the right of the digital display force gauge. A driving assembly is located to the right of the right side of the metal side plate. A laser ranging assembly is located to the front of the slide table.
[0006] As a further description of the above technical solution:
[0007] The clamp assembly includes two clamps B. The left clamp B is installed on the right side of the fixed plate, and the right clamp B is installed on the left side of the digital display force gauge. An adjusting threaded rod is rotatably connected to the rear side of the clamp B, and a clamp A is threadedly connected to the outer side of the adjusting threaded rod.
[0008] As a further description of the above technical solution:
[0009] The drive assembly includes a stepper motor, the bottom of which is fixedly connected to the upper right side of the support plate, and a threaded screw is fixedly connected to the output end of the stepper motor.
[0010] As a further description of the above technical solution:
[0011] The laser ranging component includes a fixed sleeve, the rear side of which is fixedly connected to the front side of the slide, and a laser displacement sensor is fixedly connected to the middle of the fixed sleeve.
[0012] As a further description of the above technical solution:
[0013] The bottom of the slide is slidably connected to the upper side of the metal base plate, and the middle part of the slide is threadedly connected to the outside of the threaded screw.
[0014] As a further description of the above technical solution:
[0015] The threaded screw is rotatably connected to the inside of the metal side plate on its outer side.
[0016] As a further description of the above technical solution:
[0017] A display screen is fixedly connected to the upper side of the stepper motor. A wire is installed between the display screen and the laser displacement sensor, and a wire is installed between the display screen and the digital display force gauge.
[0018] As a further description of the above technical solution:
[0019] A power cord is provided on the front side of the stepper motor.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by using a stepper motor to drive the herbaceous plant root tensile test, the stepper motor can achieve uniform stretching, ensuring a smooth stretching process and avoiding fluctuations in test data caused by uneven stretching speed. At the same time, the precise control performance of the stepper motor can be adjusted according to different test requirements.
[0022] 2. In this utility model, the tensile displacement of the root system is measured by laser ranging. In the tensile test of herbaceous plant roots, the laser displacement sensor can accurately measure the tensile displacement of the root system, which greatly improves the measurement accuracy and precision of the displacement data.
[0023] 3. In this utility model, the synchronous start-stop data recording method ensures the accuracy and correspondence of the test data in the root tensile test of herbaceous plants, avoids errors caused by asynchronous data recording, and improves the accuracy and reliability of the test data. Attached Figure Description
[0024] Figure 1 This is a perspective view of a herbaceous plant root tensile testing device proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the clamp assembly of a herbaceous plant root tensile testing device proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of a linear slide rail assembly for a herbaceous plant root tensile testing device proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the laser ranging component of a herbaceous plant root tensile testing device proposed in this utility model.
[0028] Legend:
[0029] 1. Fixture plate; 2. Fixture assembly; 21. Fixture A; 22. Fixture B; 23. Adjusting threaded rod; 3. Linear track assembly; 31. Metal side plate; 32. Metal base plate; 33. Slide table; 34. Smooth guide rail; 35. Threaded screw; 36. Stepper motor; 37. Power cord; 4. Digital display tension gauge; 5. Laser rangefinder assembly; 51. Fixing sleeve; 52. Laser displacement sensor; 53. Wire; 54. Display screen; 6. Bearing plate. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Reference Figure 1-Figure 3 This utility model provides an embodiment of a herbaceous plant root tensile testing device, comprising a support plate 6 made of metal to ensure stable support of the entire device during the test. A fixing plate 1 is fixedly connected to the upper left side of the support plate 6 by bolts, providing stable support for the clamp assembly 2 on the left side. The clamp assembly 2 is provided on the left side of the fixing plate 1 to fix one end of the herbaceous plant root system, ensuring that the root system will not loosen or fall off during the tensile test. A linear track assembly 3 is installed on the upper right side of the support plate 6, providing a precise linear motion path for the tensile test, ensuring the accuracy and stability of the tensile process.
[0032] Reference Figure 1-Figure 3 The linear track assembly 3 includes two metal side plates 31, both of which are fixedly connected to the upper side of the support plate 6. The metal side plates 31 are made of high-strength aluminum alloy, possessing good rigidity and stability, capable of withstanding the force during the tensile process, and are fixed to the upper side of the support plate 6 by bolts. A metal base plate 32 is fixedly connected between the bottoms of the two metal side plates 31. The metal base plate 32 is also made of robust metal, providing a smooth sliding surface for the slide table 33. Two smooth guide rails 34 are fixedly connected to the upper side between the two metal side plates 31. The smooth guide rails 34 reduce the friction during the sliding of the slide table 33. A slide table 33 is slidably connected between the two smooth guide rails 34, carrying a digital display tensile gauge 4 for tensile testing. The digital display tensile gauge 4 is fixedly connected to the upper side of the slide table 33, enabling accurate measurement... The tensile force during the stretching process is measured and displayed digitally. A clamp assembly 2 is provided on the right side of the digital tensile gauge 4. The clamp assembly 2 on the right side is connected to the digital tensile gauge 4 and is used to fix the other end of the herbaceous plant root system. A drive assembly is provided on the right side of the metal side plate 31. The drive assembly provides power for the movement of the slide table 33 to achieve the stretching of the herbaceous plant root system. A laser ranging assembly 5 is provided on the front side of the slide table 33. The laser ranging assembly 5 can accurately measure the displacement distance of the slide table 33, providing important data reference for the tensile test.
[0033] Reference Figure 1 and Figure 2The clamp assembly 2 includes two clamps B22. The clamps B22 are made of high-strength metal material and have good clamping force and stability. The left clamp B22 is installed on the right side of the fixed plate 1 and is fixed to the fixed plate 1 by bolt connection to ensure that it will not loosen during the stretching process. The right clamp B22 is installed on the left side of the digital display tensile tester 4 and is tightly connected to the digital display tensile tester 4 to accurately measure the tensile force during the stretching process. An adjusting threaded rod 23 is rotatably connected to the rear side of the clamp B22. The adjusting threaded rod 23 adjusts the position of the clamp A21 by rotation. The clamp A21 is threadedly connected to the outer side of the adjusting threaded rod 23. The clamp A21 is used in conjunction with the adjusting threaded rod 23 to adapt to the root systems of herbaceous plants of different sizes.
[0034] Reference Figure 1 and Figure 3 The drive component includes a stepper motor 36, which has precise control performance and stable output power. The bottom of the stepper motor 36 is fixedly connected to the upper right side of the support plate 6 to ensure that the stepper motor 36 will not move or shake during operation. A threaded screw 35 is fixedly connected to the output end of the stepper motor 36, which can convert the rotational motion of the stepper motor 36 into the linear motion of the slide table 33.
[0035] Reference Figure 1 and Figure 4 The laser ranging assembly 5 includes a fixed sleeve 51, which can firmly fix the laser displacement sensor 52. The rear side of the fixed sleeve 51 is fixedly connected to the front side of the slide table 33 to ensure the stability of the position of the laser displacement sensor 52 during the movement of the slide table 33. The laser displacement sensor 52 is fixedly connected to the middle of the fixed sleeve 51. The laser displacement sensor 52 is a high-precision measuring device that can measure the displacement distance of the slide table 33 by emitting laser and receiving reflected light.
[0036] Reference Figure 1 and Figure 3 The bottom of the slide table 33 is slidably connected to the upper side of the metal base plate 32, which facilitates the free sliding of the slide table 33 for tensile testing. The middle part of the slide table 33 is threadedly connected to the outside of the threaded screw 35. When the threaded screw 35 rotates, the slide table 33 can move linearly along the axial direction of the threaded screw 35.
[0037] Reference Figure 1 and Figure 3 The threaded screw 35 is rotatably connected to the inside of the metal side plate 31 on the outside. The threaded screw 35 can rotate freely in the metal side plate 31, reducing frictional resistance and improving transmission efficiency.
[0038] Reference Figure 1 , Figure 3 and Figure 4A display screen 54 is fixedly connected to the upper side of the stepper motor 36. The display screen 54 facilitates the operator to observe and read data. A wire 53 is installed between the display screen 54 and the laser displacement sensor 52, which can transmit the data measured by the laser displacement sensor 52 to the display screen 54 for display. A wire 53 is installed between the display screen 54 and the digital display force gauge 4, which transmits the tension data measured by the digital display force gauge 4 to the display screen 54.
[0039] Reference Figure 3 and Figure 4 A power cable 37 is provided on the front side of the stepper motor 36, which can transmit electrical energy from an external power source to the stepper motor 36 to provide power for the operation of the stepper motor 36.
[0040] Working principle: When a tensile test is required on the root system of a herbaceous plant, the stepper motor 36 and the digital tensile gauge 4 are powered on. Then, by rotating the adjusting threaded rod 23, the clamp A21 slides outward. The herbaceous plant root is then placed between clamp A21 and clamp B22, and the adjusting threaded rod 23 is rotated to make clamp B22 slide inward to hold the herbaceous plant root. After the herbaceous plant root is held, the speed of the stepper motor 36 is adjusted and the stepper motor 36 is started. The rotation of the stepper motor 36 drives the threaded rod 35 to rotate, which in turn drives the slide table 33 to slide. The slide table 33 then drives the digital tensile gauge 4 to slide, thus performing a tensile test on the herbaceous plant root. At the same time, the data are displayed on the display screen 54 by the laser displacement sensor 52 and the digital tensile gauge 4.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 root tensile testing device for herbaceous plants, comprising a support plate (6), characterized in that: A fixing plate (1) is fixedly connected to the upper left side of the bearing plate (6), a clamp assembly (2) is provided on the left side of the fixing plate (1), and a linear track assembly (3) is installed on the upper right side of the bearing plate (6). The linear track assembly (3) includes two metal side plates (31), both of which are fixedly connected to the upper side of the bearing plate (6). A metal base plate (32) is fixedly connected between the bottoms of the two metal side plates (31). Two smooth guide rails (34) are fixedly connected to the upper side of the two metal side plates (31). A slide table (33) is slidably connected between the two smooth guide rails (34). A digital display tension gauge (4) is fixedly connected to the upper side of the slide table (33). The clamp assembly (2) is provided on the right side of the digital display tension gauge (4). A drive assembly is provided on the right side of the metal side plate (31). A laser ranging assembly (5) is provided on the front side of the slide table (33).
2. The herbaceous plant root tensile testing device according to claim 1, characterized in that: The clamp assembly (2) includes two clamps B (22). The left clamp B (22) is installed on the right side of the fixed plate (1), and the right clamp B (22) is installed on the left side of the digital display force gauge (4). An adjusting threaded rod (23) is rotatably connected to the rear side of the clamp B (22), and a clamp A (21) is threadedly connected to the outer side of the adjusting threaded rod (23).
3. The herbaceous plant root tensile testing device according to claim 1, characterized in that: The drive assembly includes a stepper motor (36), the bottom of which is fixedly connected to the upper right side of the support plate (6), and a threaded screw (35) is fixedly connected to the output end of the stepper motor (36).
4. The herbaceous plant root tensile testing device according to claim 3, characterized in that: The laser ranging component (5) includes a fixed sleeve (51), the rear side of which is fixedly connected to the front side of the slide (33), and a laser displacement sensor (52) is fixedly connected to the middle part of the fixed sleeve (51).
5. The herbaceous plant root tensile testing device according to claim 3, characterized in that: The bottom of the slide (33) is slidably connected to the upper side of the metal base plate (32), and the middle part of the slide (33) is threadedly connected to the outside of the threaded screw (35).
6. The herbaceous plant root tensile testing device according to claim 3, characterized in that: The threaded screw (35) is rotatably connected to the inside of the metal side plate (31) on the outside.
7. The herbaceous plant root tensile testing device according to claim 4, characterized in that: A display screen (54) is fixedly connected to the upper side of the stepper motor (36). A wire (53) is installed between the display screen (54) and the laser displacement sensor (52). A wire (53) is also installed between the display screen (54) and the digital display force gauge (4).
8. The herbaceous plant root tensile testing device according to claim 3, characterized in that: A power cord (37) is provided on the front side of the stepper motor (36).