Compression-shear testing machine

Abstract

The utility model relates to the field of material mechanical property testing equipment, in particular to a compression-shear testing machine. The compression-shear testing machine comprises a supporting platform, a bearing platform, a pressure mechanism, a shear mechanism and a cleaning mechanism. Wherein the pressure mechanism applies vertical pressure to a detected object through a pressing cylinder; the shearing mechanism applies horizontal shearing force to the detected object through a shearing cylinder; the cleaning mechanism achieves automatic cleaning of the bearing platform through a sliding cleaning scraper blade and an ash cleaning bin. In addition, a positioning mechanism and a guide mechanism are further arranged, the precise action point of the shear mechanism is ensured, and the working noise is reduced through a noise reduction shell and a sound absorption cotton layer. The testing device achieves the effects of improving the testing precision, prolonging the service life of equipment and improving the operation environment.

Description

Technical Field

[0001] This application relates to the field of equipment for testing the mechanical properties of materials, and in particular to a compression-shear testing machine. Background Technology

[0002] Compression-shear testing machines, as important testing equipment, are widely used in building materials, metal materials, and other fields to evaluate the compressive strength and shear properties of materials. This data is crucial for ensuring the safety and durability of buildings and provides a reliable basis for engineering design. With technological advancements, the design of compression-shear testing machines has been continuously optimized. Modern equipment typically possesses high precision and stability and can simulate stress states under actual usage conditions. However, despite significant progress in performance, compression-shear testing machines still face many challenges in long-term use.

[0003] Existing compression-shear testing machines generally employ various methods to address the dust and debris generated during testing. The most common method is manual cleaning. While simple and easy to implement, this approach is inefficient in frequently used environments and involves high labor intensity. Furthermore, the testing platform needs to be cleaned after each compression-shear test, and manual cleaning significantly impacts processing efficiency when conducting a large number of tests. Some machines utilize automated devices, such as blowers or vacuum cleaners, to remove residual materials. However, these devices cannot remove larger fragments, still requiring manual intervention.

[0004] Regarding the aforementioned technologies, the inventors believe that although the methods described above have solved some of the cleaning problems to a certain extent, they have not completely solved the problem of efficient and automatic cleaning of residues after compression and shear tests. The shortcomings of existing technologies are particularly evident when multiple tests need to be conducted consecutively, leading to a significant reduction in testing efficiency and affecting the timeliness and accuracy of test results. Therefore, a compression and shear testing machine is urgently needed to solve these problems. Utility Model Content

[0005] To address the aforementioned problems, this application provides a compression-shear testing machine.

[0006] This application provides a compression-shear testing machine, which adopts the following technical solution:

[0007] A compression-shear testing machine includes a support platform; a bearing platform, which is disposed on the support platform and used to support the object to be tested; a pressure mechanism, which is disposed on the support platform and above the bearing platform, with its moving end pointing towards the bearing platform, and used to apply pressure to the object to be tested; a shear mechanism, which is disposed on the support platform and with its moving end pointing towards the bearing platform, and used to apply pressure and shear force to the object to be tested; and a cleaning mechanism, which includes a cleaning slide rail disposed on the support platform, a cleaning slider slidably connected to the cleaning slide rail, a scraper cylinder disposed on the cleaning slider, a cleaning scraper disposed at the transmission end of the scraper cylinder, the cleaning scraper being movable to the bearing platform, a cleaning cylinder disposed at the end of the cleaning scraper away from the bearing platform, the cleaning cylinder being disposed on the support platform, and a connecting rod disposed between the cleaning cylinder and the cleaning slider.

[0008] By adopting the above technical solution, this compression-shear testing machine can effectively provide pressure and shear force during the experiment, ensuring that the tested object is subjected to uniform pressure distribution and precise shearing action. Specifically, the support platform, as the basic structure of the entire equipment, not only stably supports the bearing platform but also provides the mounting foundation for other components. The bearing platform is used to place the test item, ensuring its stability during the experiment. The pressure mechanism is located above the bearing platform and applies vertical pressure to the lower pressure plate through a downward pressure cylinder, achieving effective loading of samples of different sizes and shapes. Simultaneously, the shear force mechanism, through a horizontally set shear cylinder, drives the shear plate to move along the shear slide rail, realizing the application of lateral shear force to the specimen, thereby simulating the stress conditions under actual working conditions.

[0009] More importantly, a cleaning mechanism has been introduced. After one or more tests are completed, the scraper cylinder on the cleaning slider can drive the cleaning scraper to reciprocate along the cleaning rail, thoroughly removing any residue remaining on the surface of the support platform. The specially designed cleaning slope increases cleaning efficiency, avoiding the need for manual cleaning in traditional methods, greatly improving work efficiency and reducing the risk of secondary contamination and inaccurate detection. Furthermore, the cleaning cylinder controls the position adjustment of the cleaning slider, making the cleaning range more flexible and controllable, further enhancing the practicality and reliability of the device.

[0010] Preferably, the pressure mechanism includes a pressure frame disposed on the support platform, a downward pressure cylinder disposed on the pressure frame, the downward pressure cylinder being vertically disposed, the transmission end of the downward pressure cylinder pointing towards the bearing platform, and a downward pressure plate disposed on the transmission end of the downward pressure cylinder.

[0011] By adopting the above technical solution, the pressure mechanism of this compression-shear testing machine is rationally designed. It uses a lowering cylinder and a lowering plate to achieve stable pressure on the tested object, improving the accuracy and reliability of pressure loading. Simultaneously, the vertical placement of the lowering cylinder ensures more uniform pressure transmission in the vertical direction, avoiding uneven pressure distribution caused by tilting.

[0012] Preferably, the shearing mechanism includes a shearing slide rail disposed on the support platform, a shearing slider slidably connected to the shearing slide rail, a positioning mechanism disposed on the shearing slider, a shearing cylinder disposed on the shearing slider, the shearing cylinder being horizontally disposed, the transmission end of the shearing cylinder pointing towards the bearing platform, and a shearing plate disposed on the transmission end of the shearing cylinder.

[0013] By adopting the above technical solution, the cooperation between the shearing slide rail and the shearing slider enables the shearing cylinder to move precisely in the horizontal direction, ensuring that the shearing plate can accurately apply shearing force to the object being tested. Simultaneously, the design of the shearing slide rail allows the shearing mechanism to be closer to the object before testing, thereby reducing deformation of the shearing plate due to its excessive length and improving the accuracy of shearing force detection. This enhances the precision and stability of the shearing operation. The positioning mechanism further strengthens the positional stability of the shearing slider, avoiding errors caused by positional deviation during the shearing process and ensuring the reliability and consistency of the test results.

[0014] Preferably, the positioning mechanism includes a positioning plate disposed on the shearing slider, the positioning plate having a first threaded hole, and also includes a plurality of second threaded holes disposed on the support platform, the first threaded hole and the second threaded holes being connected by bolts.

[0015] By adopting the above technical solution, the positioning mechanism enables precise positioning and fixation of the shearing slider during movement, improving the operational accuracy and stability of the equipment. Specifically, the first threaded hole on the positioning plate cooperates with the second threaded hole on the support platform, and the shearing slider can be quickly and accurately fixed in the required position through bolt connection, preventing the shearing mechanism from moving during testing and affecting the test results, thus ensuring the reliability and repeatability of the shearing operation.

[0016] Preferably, it also includes a guiding mechanism, which includes a guide frame disposed on the support platform, two sets of connecting seats disposed on the guide frame, guide rods disposed on adjacent sets of connecting seats, sliding blocks slidably connected to the guide rods, transmission rods disposed on the sliding blocks, and transmission rods connected to the shearing plate.

[0017] By adopting the above technical solution, the guiding mechanism ensures the stability and accuracy of the shear plate when shearing force is applied. Specifically, the guide frame and the connecting seat work together to keep the guide rod in a fixed position, thereby ensuring that the sliding block moves smoothly along the predetermined path. At the same time, the transmission rod accurately transmits power to the shear plate, avoiding test errors caused by offset or vibration during the shearing process, and improving the reliability and repeatability of the test results.

[0018] Preferably, it also includes a dust removal mechanism, which includes a dust removal plate disposed at the drive end of the scraper cylinder, a dust removal chamber disposed on the dust removal plate, a dust removal pipe connected to the dust removal chamber, an airflow pump disposed inside the dust removal pipe, and an adsorption port disposed at the end of the dust removal pipe pointing towards the bearing platform.

[0019] By adopting the above technical solution, the compression-shear testing machine can effectively remove residual dust and debris from the bearing platform during sample testing. Specifically, the dust removal mechanism, through the dust removal chamber and dust removal pipe set on the cleaning slider, uses the adsorption port to remove dust from the surface of the bearing platform during the cleaning process, thereby ensuring the cleanliness of the testing environment and improving the accuracy and reliability of the test results.

[0020] Preferably, the cleaning scraper is provided with a cleaning slope.

[0021] By adopting the above technical solution, the cleaning scraper is equipped with a cleaning slope, which enables more effective removal of residual substances during the cleaning process, improving cleaning efficiency and effectiveness. At the same time, the slope design helps reduce the risk of scratches on the surface of the support platform, extending the service life of the equipment.

[0022] Preferably, the support platform is provided with a noise-reducing shell.

[0023] By adopting the above technical solutions, this compression-shear testing machine can effectively reduce the propagation and diffusion of noise during operation, improve the quietness of the laboratory environment, and protect the health of operators. At the same time, the noise-reducing housing design also improves the safety of equipment operation and prevents external interference from affecting the accuracy of test results.

[0024] Preferably, the noise-reducing outer shell is provided with a sound-absorbing cotton layer.

[0025] By adopting the above technical solutions, the sound-absorbing cotton layer inside the noise-reducing shell can effectively absorb and reduce the noise generated during equipment operation, improve the comfort of the working environment, and reduce the impact on the external environment.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. The cleaning mechanism not only efficiently and automatically removes residues after the compression and shear test, but also reduces the need for manual intervention, thus significantly improving test efficiency. Specifically, the design of the cleaning slide rail and cleaning slider allows the cleaning scraper to move freely on the support platform, working in conjunction with the cleaning cylinder to ensure complete coverage of the cleaning area. Furthermore, the introduction of the dust removal mechanism further enhances the cleaning capability; the dust removal chamber effectively collects fine particles through the dust removal pipe and adsorption port, preventing secondary pollution.

[0028] 2. The independent control design of the pressure mechanism and the shear mechanism makes the test process more flexible and adaptable, allowing for precise application of the required pressure and shear forces according to different test needs. The lower pressure cylinder and lower pressure plate in the pressure mechanism ensure the application of pressure in the vertical direction, while the shear cylinder and shear plate in the shear mechanism realize the application of shear force in the horizontal direction. The two mechanisms work independently yet collaboratively, greatly improving the accuracy and reliability of the test results.

[0029] 3. The close cooperation between the positioning mechanism and the guiding mechanism ensures the stability and accuracy of the shear slider during movement. The first threaded hole on the positioning plate and the second threaded hole on the support platform are fixed by bolts, making the position of the shear slider adjustable and stable; the guide rod and sliding block structure on the guide frame ensure that the shear slider moves smoothly along the predetermined path, further improving the reliability and repeatability of the test. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0031] Figure 2 This is a partial structural schematic diagram of an embodiment of this application;

[0032] Figure 3 yes Figure 2 A magnified view of point A;

[0033] Figure 4 This is a schematic diagram of the dust removal mechanism according to an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Support platform; 101. Bearing platform; 102. Noise-reducing outer shell; 103. Sound-absorbing cotton layer; 2. Pressure mechanism; 201. Pressure frame; 202. Downward pressing cylinder; 203. Downward pressing plate; 3. Shearing mechanism; 301. Shearing slide rail; 302. Shearing slider; 303. Positioning mechanism; 3031. Positioning plate; 3032. First threaded hole; 3033. Second threaded hole; 304. Shearing cylinder; 305. Shearing plate; 4. Cleaning Mechanism; 401, Cleaning slide rail; 402, Cleaning slider; 403, Scraper cylinder; 404, Cleaning scraper; 4041, Cleaning slope; 405, Cleaning cylinder; 406, Connecting rod; 5, Guide mechanism; 501, Guide frame; 502, Connecting seat; 503, Guide rod; 504, Sliding block; 505, Transmission rod; 6, Dust removal mechanism; 601, Dust removal plate; 602, Dust removal bin; 603, Dust removal pipe; 604, Air pump; 605, Adsorption port. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0036] This application provides a compression-shear testing machine, referencing... Figure 1 as well as Figure 2 The system includes a support platform 1, a bearing platform 101, a pressure mechanism 2, a shearing mechanism 3, and a cleaning mechanism 4. The support platform 1 is used to fix the entire device; the bearing platform 101 is mounted on the support platform 1 and is used to support the object being tested; the pressure mechanism 2 is mounted on the support platform 1, located above the bearing platform 101, and is used to apply pressure to the object being tested; the shearing mechanism 3 is also mounted on the support platform 1, with its moving end pointing towards the bearing platform 101, and is used to apply shear force to the object being tested; the cleaning mechanism 4 is responsible for cleaning after the test.

[0037] Specifically, the support platform 1 can be made of high-strength steel to ensure the stability and load-bearing capacity of the equipment. The bearing platform 101 also uses high-strength steel, with a specially treated surface to increase wear resistance and smoothness, reducing frictional resistance. The pressure mechanism 2 includes a pressure frame 201 mounted on the support platform 1. The pressure frame 201 is equipped with a downward pressure cylinder 202, which is vertically positioned with its transmission end pointing towards the bearing platform 101. The transmission end also has a downward pressure plate 203. The downward pressure plate 203 can be replaced with different materials as needed, such as stainless steel or carbon steel, to adapt to the testing requirements of different materials.

[0038] refer to Figure 2Specifically, when pressure needs to be applied to the object being tested, the pressing cylinder 202 starts working under the command of the external control system, pushing the pressing plate 203 downward until it contacts and presses the object being tested. At this time, the external pressure sensor monitors the pressure value in real time and feeds it back to the external control system to ensure that the pressure reaches the preset value. As an embodiment not shown, the pressing plate 203 is bolted to the drive end of the pressing cylinder 202. If it is necessary to replace the pressing plate 203 with one made of a different material, it can simply be removed and replaced with a new pressing plate 203.

[0039] refer to Figure 2 as well as Figure 3 The shearing mechanism 3 includes a shearing slide rail 301 mounted on the support platform 1. A shearing slider 302 is slidably connected to the shearing slide rail 301. The shearing slider 302 is equipped with a positioning mechanism 303 and a shearing cylinder 304. The shearing cylinder 304 is horizontally positioned, with its transmission end pointing towards the support platform 101. A shearing plate 305 is also mounted on the transmission end. The positioning mechanism 303 includes a positioning plate 3031 mounted on the shearing slider 302. The positioning plate 3031 has a first threaded hole 3032, and the support platform 1 has several second threaded holes 3033. The first threaded holes 3032 and the second threaded holes 3033 are connected by bolts to achieve precise positioning. In addition, a guide mechanism 5 is included. The guide mechanism 5 includes a guide frame 501 set on the support platform 1. The guide frame 501 is provided with two sets of connecting seats 502. The two adjacent sets of connecting seats 502 are provided with guide rods 503. A sliding block 504 is slidably connected to the guide rod 503. A transmission rod 505 is provided on the sliding block 504. The transmission rod 505 is connected to the shearing plate 305 to improve the smoothness and accuracy of the shearing action.

[0040] Specifically, when shear force needs to be applied to the object being inspected, the positioning mechanism 303 first precisely positions the shearing slider 302 to a suitable location. Then, the shearing cylinder 304 starts working, pushing the shearing plate 305 towards the object being inspected on the support platform 101 until it contacts and shears the object. During this process, the guide mechanism 5 ensures that the movement of the shearing plate 305 is smooth and without deviation, thereby guaranteeing the accuracy and reliability of the shearing effect.

[0041] refer to Figure 1 as well as Figure 4The cleaning mechanism 4 includes a cleaning slide rail 401 mounted on the support platform 1. A cleaning slider 402 is slidably connected to the cleaning slide rail 401. A scraper cylinder 403 is mounted on the cleaning slider 402, and a cleaning scraper 404 is mounted on the transmission end of the scraper cylinder 403. The cleaning scraper 404 can move onto the support platform 101. A cleaning cylinder 405 is mounted on the end of the cleaning scraper 404 away from the support platform 101. The cleaning cylinder 405 is mounted on the support platform 1, and a connecting rod 406 is provided between the cleaning cylinder 405 and the cleaning slider 402. A cleaning slope 4041 can also be provided on the cleaning scraper 404 to better collect and discharge residual materials. In addition, a dust removal chamber 602 is also provided on the cleaning slider 402. A dust removal pipe 603 is connected to the dust removal chamber 602. An adsorption port 605 is provided at the end of the dust removal pipe 603 pointing towards the support platform 101, which uses the principle of negative pressure to further remove fine particles.

[0042] Specifically, after the test is completed, the cleaning mechanism 4 begins to operate. First, the cleaning cylinder 405 pushes the cleaning slider 402 along the cleaning rail 401, causing the cleaning scraper 404 to contact the residue on the support platform 101. The cleaning slope 4041 on the cleaning scraper 404 helps to concentrate and push the residue, making it easier to remove. At the same time, the dust removal mechanism 6 also periodically sprays compressed air to help loosen and blow away the residue. Finally, the suction port 605 in the dust removal chamber 602 generates negative pressure, sucking the remaining fine particles into the dust removal chamber 602 for thorough cleaning.

[0043] refer to Figure 1 To reduce noise, the support platform 1 is also equipped with a noise-reducing shell 102, and a sound-absorbing cotton layer 103 is installed inside the noise-reducing shell 102. This can effectively absorb and isolate noise without affecting operation, thereby improving the quality of the working environment.

[0044] Specifically, the noise-reducing housing 102 is designed to block most of the noise generated during equipment operation, while the internal sound-absorbing cotton layer 103 further absorbs and reduces noise, thereby significantly reducing the level of noise heard from the outside. This not only improves the operator's working comfort but also helps protect hearing from damage.

[0045] The implementation principle of the compression-shear testing machine in this application embodiment is as follows: Through the integrated pressure mechanism 2 and shear mechanism 3, precise pressure and shearing are achieved on the tested object, improving the accuracy and reliability of the test. Simultaneously, the equipped cleaning mechanism 4 can quickly remove residues after the test, avoiding the tediousness and inefficiency of manual cleaning and improving test efficiency. In particular, the combined design of the air scraper and ash removal chamber 602 in the cleaning mechanism 4 can more effectively remove various types of residues, ensuring the cleanliness of the test bench. The noise-reducing housing 102 design greatly reduces the noise during equipment operation, improving the working environment.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A compression-shear testing machine characterized by comprising: The utility model relates to a kind of detection device for being detected object, including Support platform (1); Carrying platform (101) is arranged on the support platform (1), for supporting the object to be detected; Pressure mechanism (2) is arranged on the support platform (1), the pressure mechanism (2) is arranged above the carrying platform (101), the moving end of the pressure mechanism (2) points to the carrying platform (101), and the pressure mechanism (2) is used to provide pressure to the object to be detected; Shear mechanism (3) is arranged on the support platform (1), the moving end of the shear mechanism (3) points to the carrying platform (101), and the shear mechanism (3) is used to provide pressure and provide shear to the object to be detected; Cleaning mechanism (4) includes cleaning slide rail (401) arranged on the support platform (1), cleaning slide block (402) is slidably connected on the cleaning slide rail (401), scraper air cylinder (403) is arranged on the cleaning slide block (402), drive end of the scraper air cylinder (403) is provided with cleaning scraper (404), the cleaning scraper (404) can move to the carrying platform (101), cleaning air cylinder (405) is arranged at the end of the cleaning scraper (404) away from the carrying platform (101), the cleaning air cylinder (405) is arranged on the support platform (1), and connecting rod (406) is arranged between the cleaning air cylinder (405) and the cleaning slide block (402).

2. A compression-shear testing machine according to claim 1, wherein The pressure mechanism (2) includes pressure frame (201) arranged on the support platform (1), the pressure frame (201) is provided with down pressure air cylinder (202), the down pressure air cylinder (202) is vertically arranged, the drive end of the down pressure air cylinder (202) points to the carrying platform (101), and the drive end of the down pressure air cylinder (202) is provided with down pressure plate (203).

3. The compression-shear testing machine of claim 1, wherein The shear mechanism (3) includes shear slide rail (301) arranged on the support platform (1), shear slide block (302) is slidably connected on the shear slide rail (301), positioning mechanism (303) is arranged on the shear slide block (302), shear air cylinder (304) is arranged on the shear slide block (302), the shear air cylinder (304) is horizontally arranged, the drive end of the shear air cylinder (304) points to the carrying platform (101), and the drive end of the shear air cylinder (304) is provided with shear plate (305).

4. A compression-shear testing machine according to claim 3, wherein The positioning mechanism (303) includes positioning plate (3031) arranged on the shear slide block (302), the first threaded hole (3032) is arranged on the positioning plate (3031), and a plurality of second threaded holes (3033) are arranged on the support platform (1), and the first threaded hole (3032) and the second threaded hole (3033) can be connected by bolt.

5. A compression-shear testing machine according to claim 4, wherein Also include guide mechanism (5), the guide mechanism (5) include the guide frame (501) set on the support platform (1), be provided with two groups of connecting seat (502) on the guide frame (501), be provided with guide rod (503) on adjacent two connecting seat (502), the sliding block (504) is connected on the guide rod (503) and slides, be provided with transmission rod (505) on the sliding block (504), the transmission rod (505) is connected on the shearing plate (305).

6. The compression-shear testing machine of claim 1, wherein Also include ash cleaning mechanism (6), the ash cleaning mechanism (6) includes ash cleaning plate (601) set on the scraper cylinder (403) drive end, be provided with ash cleaning bin (602) on the ash cleaning plate (601), the ash cleaning bin (602) is communicated with ash cleaning pipe (603), the airflow pump (604) is set in the ash cleaning pipe (603), the ash cleaning pipe (603) is provided with suction port (605) on one end of the bearing platform (101) and is directed to.

7. The compression-shear testing machine of claim 1, wherein The cleaning scraper (404) is provided with a cleaning slope (4041).

8. The compression-shear testing machine of claim 1, wherein The support platform (1) is provided with a noise reduction shell (102).

9. A compression-shear testing machine according to claim 8, wherein The noise reduction shell (102) is provided with a sound-absorbing cotton layer (103).

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