Cement compression and flexure testing machine

Abstract

The utility model discloses a cement compression and flexural test machine relates to the field of building material performance test technology, it includes frame, the lower end part of frame is fixed with detection platform, and the detection platform is opened with detection groove, and the support plate is equipped in the detection groove, and the support plate is along vertical and detection groove inner wall slidingly connected, and both ends of support plate are equipped with support block, and support block is along transverse and detection groove inner wall slidingly connected, and the upper end part of frame is equipped with detection device, and detection device is used to test cement block, and the upper end part of support plate is equipped with the push -plate, and the push -plate is bonded with support plate, and one side of push -plate is equipped with cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of building material performance testing technology, and in particular to a cement compressive and flexural strength testing machine. Background Technology

[0002] With the continuous development of the construction industry, cement, as the most basic cementitious material in construction engineering, plays a crucial role in the entire building structure. The compressive strength and flexural strength of cement are key indicators for measuring its quality. These two indicators directly determine the performance of cement in practical applications and the safety of engineering projects. Therefore, conducting rigorous compressive and flexural strength tests on cement has become an indispensable and crucial link in the high-quality development of the construction industry.

[0003] Related technology can be found in Chinese Patent No. CN210923255U, which discloses a cement compressive and flexural strength testing machine. The machine includes a body, a base, and a support frame. A fixed plate is fixed to the support frame, and a pressure sensor is fixedly connected to the fixed plate. A hydraulic cylinder is fixedly connected to the base, and a movable plate is slidably connected to the support frame. At least three sets of support components are provided on the movable plate. In this invention, when testing cement blocks, the cement block is placed on the support components. Moving the movable plate causes it to move a pressure plate to the position of the pressure head and the hydraulic cylinder, thereby enabling the testing of the cement block's compressive and flexural strength. After testing, the movable plate is moved again, causing it to move another support component to a position corresponding to the pressure head and the hydraulic cylinder. This allows for a more seamless connection in the testing process and improves testing efficiency.

[0004] Regarding the aforementioned technologies, during the testing of cement compressive and flexural strength, the cement specimen will instantly break after reaching its ultimate strength under external force, generating a large amount of irregular cement fragments and fine powder. These fragments are scattered on the working surface and surrounding area of ​​the testing machine, usually requiring manual cleaning by the testing personnel after each test. This not only increases the workload of the testing personnel but also reduces the efficiency of the test. Utility Model Content

[0005] In order to improve the testing efficiency of the testing machine for cement, this application provides a cement compressive and flexural strength testing machine.

[0006] This application provides a cement compressive and flexural strength testing machine, which adopts the following technical solution: A cement compressive and flexural strength testing machine includes a frame, a testing platform fixed at the lower end of the frame, a testing groove on the testing platform, a support plate inside the testing groove, the support plate being slidably connected to the inner wall of the testing groove vertically, support blocks at both ends of the support plate being slidably connected to the inner wall of the testing groove horizontally, a testing device at the upper end of the frame for testing cement blocks, a push plate at the upper end of the support plate being fitted with the support plate, a cylinder on one side of the push plate, the output end of the cylinder being fixedly connected to the push plate, an opening on one side of the testing platform, the push plate being directly opposite the opening, and a collection box at the opening.

[0007] By adopting the above technical solution, when the cement block is subjected to compressive strength testing, the cement block is placed on a support plate, which is larger than the cement block for support. The testing device descends to perform the compressive strength test. When the cement block is subjected to flexural strength testing, the support plate slides vertically. At this time, two support blocks support the cement block. The testing device descends to apply pressure to the cement block for flexural strength testing. After the test is completed, cylinder one drives the push plate to move. The push plate pushes the broken cement debris on the support plate to the opening, from which it falls into the collection box, reducing the time spent on manual cleaning and improving the testing efficiency of the device.

[0008] Optionally, the upper end of the support plate is provided with two clamping plates, which are located at both ends of the support plate respectively. The two clamping plates cooperate to clamp the cement block. Both sides of the testing table are provided with cylinder two, which are located on the side of the two clamping plates that are far apart from each other, and the output end of cylinder two is fixedly connected to the clamping plate.

[0009] By adopting the above technical solution, the two clamps limit the cement block, preventing displacement or shaking of the cement block during the test, thereby improving the accuracy and stability of the test. The second cylinder pushes the clamps to move laterally, adjusting the distance between the two clamps, thus clamping cement blocks of different sizes and improving the flexibility of the testing machine.

[0010] Optionally, a motor is provided on one side of the testing table, and a bidirectional lead screw is provided inside the testing table. Two support blocks are located at the two ends of the bidirectional lead screw, and the support blocks are threadedly connected to the bidirectional lead screw. A guide rod is provided on one side of the bidirectional lead screw, and the guide rod passes through the two support blocks. The support blocks are slidably connected to the guide rod along the length of the guide rod.

[0011] By adopting the above technical solution, when the cement block is subjected to flexural strength test, the motor drives the bidirectional lead screw to rotate, the guide rod limits the moving block, and the rotation of the bidirectional lead screw drives the support block to move laterally, thereby adjusting the support position of the support block on the cement block, realizing the flexural strength test of cement blocks with different spans, and improving the flexibility of the device.

[0012] Optionally, the testing device includes two cylinders, a pressing block, and a pressing roller. Both cylinders are located at the upper end of the frame and correspond to the pressing block and the pressing roller, respectively. The pressing block and the pressing roller are fixedly connected to the output end of the corresponding cylinder. A switching device is provided between the pressing block and the pressing roller. When the cement block is subjected to different tests, the switching device is used to adjust the position of the pressing block and the pressing roller.

[0013] By adopting the above technical solution, two cylinders drive the pressing block and the bending roller to move respectively, and the switching component realizes the adjustment of the position of the pressing block and the bending roller, thereby conducting compression and bending tests. When conducting the compression test, cylinder two drives the pressing block to descend and press the cement block. When conducting the bending test, cylinder two drives the bending roller to descend and test the cement block. It is not necessary to conduct tests on two separate devices, thus improving the convenience of using the device.

[0014] Optionally, the switching component includes a second motor, a threaded rod, and two moving blocks. The second motor is fixed to one side of the frame, the threaded rod is located at the upper end of the frame and is coaxially fixed with the output shaft of the second motor, and the two moving blocks are located at both ends of the threaded rod and are threadedly connected to the threaded rod. The moving blocks correspond to the third cylinder and are fixedly connected to the corresponding third cylinder.

[0015] By adopting the above technical solution, when it is necessary to switch between testing for compression resistance and bending resistance, the second motor starts and drives the threaded rod to rotate. The frame limits the movement of the moving blocks, and the rotation of the threaded rod drives the two moving blocks to move laterally, thereby changing the position between the pressing block and the bending roller and improving the convenience of using the equipment.

[0016] Optionally, a dust collection box is provided on one side of the testing platform, and a suction tube is connected to one side of the dust collection box. A suction head is provided at the end of the suction tube away from the dust collection box. The suction head is located inside the testing platform. After the cement block is tested, the suction head will absorb the dust and debris generated after the test.

[0017] By adopting the above technical solution, the dust collection box is connected to the suction head through the suction tube, forming a complete negative pressure adsorption system. After the test is completed, when the dust collection box is started, it can generate a strong suction at the suction head, which can capture and adsorb the dust and debris generated during the test in a timely manner, improve cleaning efficiency, and reduce the diffusion and accumulation of dust and debris in the test station.

[0018] Optionally, a guide plate is fixed between the testing station and the collection box, and the guide plate is inclined from top to bottom towards the collection box.

[0019] By adopting the above technical solution, the inclined design of the guide plate provides a clear downward path for the material generated on the testing platform. Under its own gravity, the material will slide smoothly along the surface of the guide plate to the collection box, which greatly improves the accuracy of the material entering the collection box, reduces the situation of material scattering outside the collection box, and ensures the efficient collection work.

[0020] Optionally, two baffles are provided at the detection slot. The two baffles are located on both sides of the detection platform. The baffles are hinged to the inner wall of the detection slot. The two baffles cooperate to seal the detection slot. When the two baffles seal the detection slot, a gap is formed between the two baffles. A motor is provided on one side of the detection baffle for the detection device to detect cement. The output shaft of the motor is coaxially fixed with the baffle.

[0021] By adopting the above technical solution, the motor controls the rotation of two baffles to open and close the detection slot. During the detection of cement blocks, the two baffles are in a closed state, which reduces the probability of cement blocks breaking or splashing due to external forces and causing injury to workers, and improves the safety of the device.

[0022] Optionally, a scale is fixed inside the testing table, located above the support blocks. The scale is marked with graduation lines, and during the testing process, the scale monitors the distance between the two support blocks.

[0023] By adopting the above technical solution, a scale is set inside the testing platform of the cement compressive and flexural strength testing machine, which allows for intuitive adjustment of the distance between the two support blocks and improves the accuracy of the device.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. After the test is completed, the cylinder drives the push plate to move. The push plate pushes the broken cement debris on the support plate to the opening, and it falls into the collection box from the opening, reducing the time spent on manual cleaning and improving the test efficiency of the device. 2. The second cylinder pushes the clamping plate to move laterally, adjusting the distance between the two clamping plates, thereby clamping cement blocks of different sizes and improving the flexibility of the testing machine. 3. During the testing of cement blocks, the two baffles are in a closed state, which reduces the probability of cement blocks breaking or splashing due to external forces and causing injury to workers, thus improving the safety of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a cement compressive and flexural strength testing machine.

[0026] Figure 2 This is a cross-sectional schematic diagram designed to highlight the connection structure of the pressing blocks.

[0027] Figure 3 This is a cross-sectional schematic diagram designed to highlight the connection structure of the support blocks.

[0028] Figure 4 This is a cross-sectional schematic diagram designed to highlight the push plate connection structure.

[0029] Figure 5 This is a schematic diagram designed to highlight the baffle connection structure.

[0030] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Detection table; 111. Detection groove; 1111. Baffle; 1112. Motor 3; 112. Support plate; 1121. Cylinder 4; 113. Support block; 1131. Motor 1; 1132. Bidirectional lead screw; 1133. Guide rod; 114. Push plate; 1141. Cylinder 1; 115. Clamping plate; 1151. Cylinder 2; 116. Scale; 12. Detection device; 121. Cylinder 3; 122. Pressing block; 123. Pressing roller; 124. Motor 2; 125. Threaded rod; 126. Moving block; 13. Collection box; 131. Guide plate; 14. Dust collection box; 141. Suction pipe; 142. Suction head; 2. Cement block. Detailed Implementation

[0031] The present application will be further described in detail below with reference to all the accompanying drawings.

[0032] This application discloses a cement compressive and flexural strength testing machine. Example

[0033] Reference Figure 1 and Figure 2 A cement compressive and flexural strength testing machine includes a frame 1. A testing platform 11 is fixedly mounted on the lower end of the frame 1. The testing platform 11 has a testing groove 111. A support plate 112 is provided in the testing groove 111. The support plate 112 is slidably connected to the inner wall of the testing platform 11 in a vertical direction. When testing a cement block 2, the cement block 2 is placed on the support plate 112. Two clamping plates 115 are provided on the upper end of the support plate 112. The two clamping plates 115 are located at both ends of the support plate 112. A second cylinder 1151 is provided on the side of the clamping plate 115 away from the cement block 2. The second cylinder 1151 pushes the clamping plate 115 to move laterally, thereby causing the two clamping plates 115 to cooperate in limiting the cement block 2 laterally, reducing the probability of the cement block 2 moving during the test, improving the stability of the device. Moreover, the distance between the two clamping plates 115 can be adjusted by the second cylinder 1151, thereby clamping cement blocks 2 of different sizes, improving the flexibility of the testing machine.

[0034] Reference Figure 2A second motor 124 is fixedly mounted on one side of the frame 1. A threaded rod 125 is provided at the upper end of the frame 1. The threaded rod 125 is coaxially fixed with the output shaft of the second motor 124. When the second motor 124 starts, it drives the threaded rod 125 to rotate. There are moving blocks 126 at both ends of the threaded rod 125. The moving blocks 126 are threadedly connected to the threaded rod 125. The frame 1 limits the movement of the moving blocks 126. The rotation of the threaded rod 125 drives the moving blocks 126 to move laterally. A second cylinder 1151 is fixedly mounted at the lower end of the moving blocks 126. The lower ends of the two cylinders 1151 are respectively provided with pressing blocks 122 and pressing folds. Roller 123 and moving block 126 move laterally, driving pressing block and folding roller 123 to move laterally. When the cement block 2 is subjected to compressive strength test, pressing block 122 is directly above the cement block 2. Cylinder 1151 drives pressing block 122 to descend and test the cement block 2. When the cement block 2 is subjected to flexural strength test, motor 124 starts and moves folding roller 123 to directly above the cement block 2. Cylinder 1151 drives folding roller 123 to descend and test the flexural strength of the cement block 2. The whole process does not require manual replacement of the testing equipment, which improves the testing efficiency of the testing machine.

[0035] Reference Figure 2 and Figure 3 Support blocks 113 are provided at both ends of the support plate 112. The support blocks 113 are slidably connected to the inner wall of the test table 11 in the transverse direction. When the cement block 2 is subjected to a compressive strength test, the support blocks 113 and the support plate 112 are on the same horizontal plane. The lower end of the support plate 112 is provided with a cylinder 1121. When the cement block 2 is subjected to a flexural strength test, the cylinder 1121 is activated to drive the support plate 112 to descend. At this time, the support blocks 113 support the cement block 2, and the pressure roller 123 presses the cement block 2 to realize the flexural strength test of the cement block 2.

[0036] Reference Figure 4 A scale 116 is fixed inside the testing table 11. The scale 116 is located above the support block 113. The scale 116 is marked with scale lines. During the testing process, the distance between the two support blocks 113 can be adjusted intuitively, which improves the accuracy of the device.

[0037] Reference Figure 4 and Figure 5A push plate 114 is provided at the upper end of the support plate 112. A cylinder 1141 is provided on one side of the push plate 114. The output end of the cylinder 1141 is fixedly connected to the push plate 114. After the test is completed, the cylinder 1121 drives the cement block 2 to rise, so that the support block 113 and the support plate 112 are on the same horizontal plane. The push plate 114 is in contact with the support plate 112. The cylinder 1141 drives the push plate 114 to move. An opening is provided on one side of the test table 11. The push plate 114 is directly opposite the opening. A collection box 13 is provided at the opening. The test table 11 and the collection box are connected. A guide plate 131 is fixed between the 13 and the 13. The guide plate 131 is inclined from top to bottom towards the collection box 13. The push plate 114 pushes the broken cement debris on the support plate 112 to the guide plate 131. The inclined design of the guide plate 131 provides a clear downward path for the material generated on the test table 11. Under its own gravity, the material will slide smoothly along the surface of the guide plate 131 to the collection box 13, which greatly improves the accuracy of the material entering the collection box 13, while reducing the time spent on manual cleaning and improving the test efficiency of the device.

[0038] Reference Figure 3 A motor 1131 is provided on one side of the testing platform 11. A bidirectional lead screw 1132 is provided inside the testing platform 11. Two support blocks 113 are located at the two ends of the bidirectional lead screw 1132, and the support blocks 113 are threadedly connected to the bidirectional lead screw 1132. A guide rod 1133 is provided on one side of the bidirectional lead screw 1132. The guide rod 1133 passes through the two support blocks 113, and the support blocks 113 are slidably connected to the guide rod 1133 along the length of the guide rod 1133. When the cement block 2 is subjected to a flexural strength test, the motor 1131 drives the bidirectional lead screw 1132 to rotate. The guide rod 1133 limits the movement of the moving block 126. The rotation of the bidirectional lead screw 1132 drives the support block 113 to move laterally, thereby adjusting the support position of the support block 113 on the cement block 2. This allows for flexural strength tests on the cement block 2 with different spans, improving the flexibility of the device.

[0039] Reference Figure 1 A dust collection box 14 is provided on one side of the testing platform 11. A suction pipe 141 is connected to one side of the dust collection box 14. A suction head 142 is provided at the end of the suction pipe 141 away from the dust collection box 14. The suction head 142 is located inside the testing platform 11. The dust collection box 14 is connected to the suction head 142 through the suction pipe 141, forming a complete negative pressure adsorption system. After the test is completed, when the dust collection box 14 is started, it can generate a strong suction at the suction head 142 to capture and adsorb the dust and debris generated during the test in a timely manner, improve cleaning efficiency, and reduce the diffusion and accumulation of dust and debris in the testing platform 11.

[0040] Reference Figure 1Two motors 1112 are fixedly installed at the upper end of the testing platform 11. Two baffles 1111 are installed at the testing groove 111. The two baffles 1111 are located on both sides of the testing platform. The baffles 1111 are hinged to the inner wall of the testing groove 111. The motors 1112 correspond one-to-one with the baffles 1111, and the output shaft of the motors 1112 is coaxially fixed with the baffles 1111. The motors 1112 control the rotation of the two baffles 1111 to realize the opening and closing of the testing groove 111. During the testing of cement block 2, the two baffles 1111 are in the closed state. The baffles 1111 can directly block the debris from flying out of the testing groove 111, reduce the probability of impact and splashing of personnel, and improve the safety of the device.

[0041] The implementation principle of a cement compressive and flexural strength testing machine according to an embodiment of this application is as follows: When the cement block 2 is subjected to compressive strength testing, the support plate 112 supports the cement block 2, and the cylinder 3 121 drives the pressing block 122 to descend and press the cement block 2. When the cement block 2 is subjected to flexural strength testing, the cylinder 4 1121 drives the support plate 112 to descend. At this time, the support block 113 supports the cement block 2. The motor 2 124 starts so that the pressing roller 123 is aligned with the cement block 2. The cylinder 3 121 drives the pressing roller 123 to descend and perform pressing and flexural testing on the cement block 2. After the test is completed, the cylinder 1 1141 drives the push plate 114 to move. The push plate 114 pushes the broken cement debris on the support plate 112 onto the guide plate 131. Under the guidance of the guide plate 131, the debris falls into the collection box 13, reducing the time spent on manual cleaning and improving the testing efficiency of the device.

[0042] 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 cement compressive and flexural strength testing machine, comprising a frame (1), characterized in that: A testing platform (11) is fixedly provided at the lower end of the frame (1). The testing platform (11) has a testing groove (111). A support plate (112) is provided inside the testing groove (111). The support plate (112) is slidably connected to the inner wall of the testing groove (111) in the vertical direction. Support blocks (113) are provided at both ends of the support plate (112). The support blocks (113) are slidably connected to the inner wall of the testing groove (111) in the horizontal direction. A testing device (1) is provided at the upper end of the frame (1). 2) The testing device (12) is used to test the cement block (2). The upper end of the support plate (112) is provided with a push plate (114). The push plate (114) is attached to the support plate (112). A cylinder (1141) is provided on one side of the push plate (114). The output end of the cylinder (1141) is fixedly connected to the push plate (114). An opening is provided on one side of the testing table (11). The push plate (114) is directly opposite the opening. A collection box (13) is provided at the opening.

2. The cement compressive and flexural strength testing machine according to claim 1, characterized in that: The upper end of the support plate (112) is provided with two clamping plates (115), which are located at both ends of the support plate (112). The two clamping plates (115) cooperate to clamp the cement block (2). The two sides of the testing table (11) are provided with cylinders (1151). Cylinders (1151) are located on the side away from each other of the two clamping plates (115), and the output end of cylinders (1151) is fixedly connected to the clamping plates (115).

3. The cement compressive and flexural strength testing machine according to claim 1, characterized in that: The testing platform (11) has a motor (1131) on one side and a bidirectional lead screw (1132) inside. Two support blocks (113) are located at the two ends of the bidirectional lead screw (1132) respectively, and the support blocks (113) are threadedly connected to the bidirectional lead screw (1132). A guide rod (1133) is provided on one side of the bidirectional lead screw (1132). The guide rod (1133) passes through the two support blocks (113), and the support blocks (113) are slidably connected to the guide rod (1133) along the length direction of the guide rod (1133).

4. A cement compressive and flexural strength testing machine according to claim 1, characterized in that: The testing device (12) includes two cylinders (121), a pressing block (122), and a pressing roller (123). The two cylinders (121) are located at the upper end of the frame (1). The two cylinders (121) correspond to the pressing block (122) and the pressing roller (123) respectively. The pressing block (122) and the pressing roller (123) are fixedly connected to the output end of the corresponding cylinder (121) respectively. A switching component is provided between the pressing block (122) and the pressing roller (123). When the cement block (2) is subjected to different tests, the switching component is used to adjust the position of the pressing block (122) and the pressing roller (123).

5. A cement compressive and flexural strength testing machine according to claim 4, characterized in that: The switching component includes a second motor (124), a threaded rod (125), and two moving blocks (126). The second motor (124) is fixed to one side of the frame (1). The threaded rod (125) is located at the upper end of the frame (1) and is coaxially fixed with the output shaft of the second motor (124). The two moving blocks (126) are located at both ends of the threaded rod (125) and are threadedly connected to the threaded rod (125). The moving blocks (126) correspond to the third cylinder (121) and are fixedly connected to the corresponding third cylinder (121).

6. A cement compressive and flexural strength testing machine according to claim 1, characterized in that: A dust collection box (14) is provided on one side of the testing platform (11). A suction tube (141) is connected to one side of the dust collection box (14). A suction head (142) is provided at the end of the suction tube (141) away from the dust collection box (14). The suction head (142) is located inside the testing platform (11). After the cement block (2) is tested, the suction head (142) adsorbs the dust and debris generated after the test.

7. A cement compressive and flexural strength testing machine according to claim 1, characterized in that: A guide plate (131) is fixed between the testing platform (11) and the collection box (13), and the guide plate (131) is inclined from top to bottom toward the collection box (13).

8. A cement compressive and flexural strength testing machine according to claim 1, characterized in that: Two baffles (1111) are provided at the detection groove (111). The two baffles (1111) are located on both sides of the detection platform. The baffles (1111) are hinged to the inner wall of the detection groove (111). The two baffles (1111) cooperate to block the detection groove (111). When the two baffles (1111) block the detection groove (111), a gap is formed between the two baffles (1111). A motor three (1112) is provided on one side of the detection baffle (1111) for the detection device (12) to detect cement. The output shaft of the motor three (1112) is coaxially fixed with the baffle (1111).

9. A cement compressive and flexural strength testing machine according to claim 1, characterized in that: A scale (116) is fixed inside the testing platform (11). The scale (116) is located above the support block (113). The scale (116) is marked with scale lines. During the testing process, the scale (116) monitors the distance between the two support blocks (113).

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