Coarse aggregate soft particle testing machine

Abstract

The utility model discloses a coarse aggregate soft particle testing machine, and particularly relates to the technical field of coarse aggregate soft particles, the coarse aggregate soft particle testing machine comprises a frame, and a lifting assembly is mounted in the frame; the lifting assembly comprises a two-way threaded rod, a rocking handle is arranged at one end of the two-way threaded rod, a supporting base is arranged at one end of the two-way threaded rod, threaded blocks are installed on the outer sides of the left end and the right end of the two-way threaded rod, pushing rods are hinged to the two threaded blocks, and shaft supports are installed on the inner sides of the top ends of the left pushing rod and the right pushing rod. Compared with the prior art, the lifting assembly is arranged, the moving distance of the two threaded blocks can be accurately controlled through rotation of a rocking handle, then the two threaded blocks move left and right to drive the lower bearing plate to move up and down through a plurality of pushing rods, and accurate control over up-down movement of the lower bearing plate is achieved; the stability and accuracy in the testing process are ensured, and the influence of shaking or vibration on the testing result is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of soft particles of coarse aggregate, and more specifically, the utility model relates to a testing machine for soft particles of coarse aggregate. Background Technique

[0002] In the construction operations of fields such as highway, railway, and water conservancy and hydropower projects, it is often necessary to measure the content of soft particles in coarse aggregate (crushed stone, gravel, and crushed gravel) for cement concrete to ensure the construction quality of the project and the safety and reliability of the structure.

[0003] The existing detection is carried out by using a pressure testing machine. Due to the large range of the pressure testing machine (above 100 kN), it is extremely difficult to control and inaccurate when applying small loads such as 0.15 kN.

[0004] After retrieval, the Chinese patent with the application number CN201720326504.1 discloses a test device for measuring the content of soft particles in coarse aggregate. It accurately applies small loads by using a force measuring ring, automatically levels by using a spherical base. By accurately applying small loads with the force measuring ring, the lower pressing plate rotates by using the spherical base and automatically levels as it contacts the specimen and remains unchanged during the test, keeping the specimen under balanced stress. The structure is scientific, the design is reasonable, it saves time and effort, effectively shortens the test time, improves the detection efficiency, has high test accuracy, and accurate test results.

[0005] When the above test device for measuring the content of soft particles in coarse aggregate is actually used, it is not convenient to accurately adjust the height of the lower bearing plate during the rising process of the lower bearing plate, resulting in large data fluctuations during the test process, thus affecting the accuracy of the test results and increasing the error of the test results. Content of the Utility Model

[0006] In order to overcome the above defects of the prior art, the utility model provides a testing machine for soft particles of coarse aggregate to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] A testing machine for soft particles of coarse aggregate includes a frame, and a rising component is installed inside the frame;

[0009] The rising component includes a bidirectional threaded rod, one end of the bidirectional threaded rod is provided with a crank, one end of the bidirectional threaded rod is provided with a support seat, threaded blocks are installed on the outer sides of the left and right ends of the bidirectional threaded rod, push rods are hinged on the two threaded blocks, a shaft support is installed on the inner side of the top of the push rod, a lower bearing plate is installed above the shaft support, a first sliding rod is arranged on the lower bearing plate, and a slide rail is installed on the outer side of the first sliding rod.

[0010] By adopting the above technical solution: the right end of the bidirectional threaded rod is fixedly connected to the left side of the crank, the inner part of the support base is rotationally connected to the outer side of the left end of the bidirectional threaded rod, the inner parts of the two threaded blocks are both threadedly connected to the outer side of the bidirectional threaded rod, both sides of the two threaded blocks are movably connected to the bottom ends of the two push rods, the top ends of the two push rods are both movably connected to both sides of the shaft support, both shaft supports are fixedly connected to the left and right sides of the bottom of the lower bearing plate, and both first sliding rods are slidably connected inside the slide rails.

[0011] As a further description of the above technical solution: a force measuring ring is arranged inside the frame, a force measuring table is arranged on the force measuring ring, and an upper bearing plate is fixedly connected to the bottom end of the force measuring ring.

[0012] By adopting the above technical solution: the top end of the force measuring ring is fixedly connected to the inner top end of the frame, the force measuring table is installed inside the force measuring ring, and the upper bearing plate is fixedly connected to the bottom end of the force measuring ring.

[0013] As a further description of the above technical solution: a motor is installed on one side of the frame, and a threaded rod is installed at the output end of the motor.

[0014] By adopting the above technical solution: the motor is installed at one end of the rear side of the frame, the threaded rod is installed at the output end of the motor, and both the threaded rod and the motor move up and down following the lower bearing plate through the groove at the rear side of the frame.

[0015] As a further description of the above technical solution: a moving plate is installed on the outer side of the threaded rod, and a scraping plate is fixedly connected to the bottom end of the inner side of the moving plate.

[0016] By adopting the above technical solution: the inner right end of the moving plate is threadedly connected to the outer side of the threaded rod, and the scraping plate is fixedly connected to the bottom end of the inner side of the moving plate.

[0017] As a further description of the above technical solution: a plurality of springs are installed inside both the moving plate and the scraping plate, and a plurality of sweeping rods are fixedly connected to the bottom ends of the plurality of springs.

[0018] By adopting the above technical solution: a plurality of springs are installed inside both the moving plate and the scraping plate, and the top ends of the plurality of sweeping rods are fixedly connected to the bottom ends of the springs.

[0019] As a further description of the above technical solution: a second sliding rod is arranged below the moving plate.

[0020] By adopting the above technical solution: the left and right second sliding rods are both fixedly connected to the bottom ends of the left and right sides of the moving plate.

[0021] As a further description of the above technical solution: a chute is formed on the upper surface of the lower bearing plate, and a... is fixedly installed on the upper surface of the lower bearing plate.

[0022] By adopting the above technical solution: both inner sides of the two sliding grooves are slidably connected to the outer sides of the sliding grooves, and the outer side of the support rod is slidably connected to the inner side of the left side of the moving plate.

[0023] The technical effects and advantages of the present utility model:

[0024] 1. By providing a rising component, compared with the prior art, the rotation of the crank can accurately control the moving distance of the two threaded blocks, and then the left and right movement of the two threaded blocks drives the lower bearing plate to move up and down through a plurality of push rods, realizing the accurate control of the up and down movement of the lower bearing plate, ensuring the stability and accuracy during the test, and avoiding the influence on the test results caused by shaking or vibration;

[0025] 2. By providing a moving plate, a scraping plate, a spring, a sweeping rod, a second sliding rod, a sliding groove and a support rod, compared with the prior art, the second sliding rod, the sliding groove and the support rod can support the moving plate to drive the scraping plate to move left and right, and then the scraping plate and a plurality of sweeping rods can evenly level the soft particles of the coarse aggregate in the top groove of the lower bearing plate, which can avoid the stress concentration or uneven stress distribution caused by uneven particle distribution and improve the accuracy of the test results. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the internal structure of the frame of the present utility model.

[0027] Figure 2 It is a schematic diagram of the outer structure of the frame of the present utility model.

[0028] Figure 3 It is a partial structural diagram of the connection part of the threaded rod of the present utility model.

[0029] Figure 4 It is a partial structural diagram of the connection part of the shaft support of the present utility model.

[0030] Figure 5 It is a partial structural diagram of the connection part of the threaded block of the present utility model.

[0031] Figure 6 It is a partial structural diagram of the connection part of the moving plate of the present utility model.

[0032] The reference numerals are: 1. Frame; 2. Crank; 3. Bidirectional threaded rod; 4. Support seat; 5. Threaded block; 6. Push rod; 7. Shaft support; 8. Lower bearing plate; 9. First sliding rod; 10. Slide rail; 11. Force measuring ring; 12. Force measuring table; 13. Upper bearing plate; 14. Motor; 15. Threaded rod; 16. Moving plate; 17. Scraping plate; 18. Spring; 19. Sweeping rod; 20. Second sliding rod; 21. Sliding groove; 22. Support rod. Detailed Description of the Invention

[0033] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] An embodiment of the present application discloses a weak particle testing machine for coarse aggregates, which includes a frame 1, and a lifting component is installed inside the frame 1;

[0035] The lifting component includes a bidirectional threaded rod 3. One end of the bidirectional threaded rod 3 is provided with a crank 2, and a support seat 4 is arranged at one end of the bidirectional threaded rod 3. Threaded blocks 5 are installed on the outer sides of the left and right ends of the bidirectional threaded rod 3. Push rods 6 are hinged on the two threaded blocks 5. Inner sides of the tops of the left and right push rods 6 are provided with shaft supports 7. An upper bearing plate 8 is installed above the left and right shaft supports 7. A first slide rod 9 is arranged on the upper bearing plate 8. Slide rails 10 are installed on the outer sides of the two first slide rods 9. By rotating the crank 2, the movement of the two threaded blocks 5 can be accurately controlled through the bidirectional threaded rod 3. The support seat 4 can support the left end of the bidirectional threaded rod 3 for rotation. The movement of the two threaded blocks 5 can both push the shaft support 7 downward through the push rod 6, so that the two shaft supports 7 can drive the upper bearing plate 8 to move upward, thereby accurately controlling the up and down movement of the upper bearing plate 8, ensuring the stability and accuracy during the test process, meeting the test requirements of different granular materials, and increasing the flexibility of the test.

[0036] Refer to Figure 1 As shown, a force measuring ring 11 is arranged inside the frame 1. A force measuring table 12 is arranged on the force measuring ring 11. The bottom end of the force measuring ring 11 is fixedly connected to an upper bearing plate 13. By the upward movement of the lower bearing plate 8 to contact the bottom of the upper bearing plate 13, the upper bearing plate 13 can upwardly extrude the force measuring ring 11, facilitating the force measuring ring 11 to reflect the extrusion load through the force measuring table 12, thereby facilitating the staff to control and record the test load.

[0037] Refer to Figure 4 and 6As shown in the figure, a motor 14 is installed on one side of the frame 1. The output end of the motor 14 is installed with a threaded rod 15. The outside of the threaded rod 15 is installed with a moving plate 16. The inner bottom end of the moving plate 16 is fixedly connected with a scraping plate 17. A plurality of springs 18 are installed inside the moving plate 16 and the scraping plate 17. The bottom ends of the plurality of springs 18 are fixedly connected with sweeping rods 19. The motor 14 can provide power for the movement of the moving plate 16, so that the moving plate 16 can drive the scraping plate 17 and the plurality of sweeping rods 19 to evenly level the soft particles of the coarse aggregate in the top groove of the lower bearing plate 8, effectively preventing the soft particles of the coarse aggregate from stacking, reducing the error caused by uneven pressure, and thus improving the accuracy of the test results.

[0038] Refer to Figure 4 As shown in the figure, a second sliding rod 20 is arranged below the moving plate 16. A sliding groove 21 is formed on the upper surface of the lower bearing plate 8. A 22 is fixedly installed on the upper surface of the lower bearing plate 8. By using the two second sliding rods 20 to slide inside the sliding groove 21, it is convenient for the moving plate 16 to maintain relative stability during movement. The support rod 22 is used to provide a guiding function for the movement of the moving plate 16, so that the movement of the moving plate 16 can be more stable.

[0039] The working principle of the present utility model: The present utility model designs a soft particle testing machine for coarse aggregate, and the specific structure is as shown in the attached Figures 1-6As shown, in this technical solution, through the mutual cooperation between various structures, when it is necessary to test the soft particles of coarse aggregates, first pour the selected soft particles of coarse aggregates into the groove on the top of the lower bearing plate 8. Then start the motor 14, and use the motor 14 to drive the threaded rod 15 to rotate. The threaded rotation of the threaded rod 15 drives the moving plate 16 to move back and forth. The left end of the moving plate 16 slides outside the support rod 22, so that it can stably drive the scraper 17 to sweep on the groove on the top of the lower bearing plate 8. The scraper 17 and multiple sweeping rods 19 can evenly flatten the soft particles of coarse aggregates inside the groove on the top of the lower bearing plate 8, effectively preventing the soft particles of coarse aggregates from stacking. When the soft particles of coarse aggregates are flattened, move the moving plate 16 to the right side of the top of the lower bearing plate 8. When the multiple sweeping rods 19 move to the right side of the lower bearing plate 8 by using the slope of the inner groove of the lower bearing plate 8, it can push the multiple sweeping rods 19 to contract into the scraper 17 and the inside of the moving plate 16 and squeeze the spring 18, which is convenient for the moving plate 16 and the moving plate 16 to drive the multiple sweeping rods 19 to move to the right side of the top of the lower bearing plate 8. Then, manually rotate the crank 2, and the rotation of the crank 2 drives the bidirectional threaded rod 3 to rotate. The support seat 4 can support the rotation of the bidirectional threaded rod 3, so that both the left and right sides of the bidirectional threaded rod 3 can drive the threaded blocks 5 to move to both sides. Since the bottom ends of the two push rods 6 are movably connected to both sides of the threaded block 5, both of the two threaded blocks 5 can push the push rods 6 to move upward. At the same time, the top ends of the multiple push rods 6 are movably connected to both sides of the shaft support 7, so that the multiple push rods 6 can all push the shaft support 7 to move upward, thereby enabling the two shaft supports 7 to push the lower bearing plate 8 to move upward. The lower bearing plate 8 slides inside the slide rail 10 through the two first slide rods 9, so that it can drive the soft particles of coarse aggregates to contact the bottom of the upper bearing plate 13. Subsequently, control the load to be tested through the force measuring instrument 12, which is convenient for testing the soft particles of coarse aggregates.

[0040] Among them, in the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments of the present disclosure are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0041] The content not described in detail in the specification belongs to the well-known prior art of those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here;

[0042] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coarse aggregate soft particle testing machine, comprising a frame (1), characterized in that: A rising component is installed inside the frame (1); The lifting assembly comprises a bidirectional threaded rod (3), one end of the bidirectional threaded rod (3) is provided with a crank (2), the left side of the crank (2) is fixedly connected to the bidirectional threaded rod (3), one end of the bidirectional threaded rod (3) is provided with a support seat (4), two groups of threaded blocks (5) are provided on the bidirectional threaded rod (3), a push rod (6) is hingedly provided on the threaded block (5), an axle support (7) is installed on the inner side of the top end of the push rod (6), a lower bearing plate (8) is installed above the axle support (7), a first slide rod (9) is arranged on the lower bearing plate (8), and a slide rail (10) is installed on the outer side of the first slide rod (9).

2. The coarse aggregate soft particle testing machine according to claim 1, characterized in that: A force measuring ring (11) is arranged inside the frame (1), a force measuring gauge (12) is arranged on the force measuring ring (11), and an upper load-bearing plate (13) is fixedly connected to the bottom end of the force measuring ring (11).

3. The coarse aggregate soft particle testing machine according to claim 1, characterized in that: A motor (14) is mounted on one side of the frame (1), and a threaded rod (15) is mounted on the output end of the motor (14).

4. The coarse aggregate soft particle testing machine according to claim 3 is characterized by: A movable plate (16) is installed on the outer side of the threaded rod (15), and a scraper plate (17) is fixedly connected to the inner bottom end of the movable plate (16).

5. The coarse aggregate soft particle testing machine according to claim 4, characterized in that: A plurality of springs (18) are installed inside the movable plate (16) and the scraper plate (17), and a sweeping rod (19) is fixedly connected to the bottom ends of the plurality of springs (18).

6. The coarse aggregate soft particle testing machine according to claim 5, characterized in that: A second sliding rod (20) is arranged below the movable plate (16).

7. The coarse aggregate soft particle testing machine according to claim 1, characterized in that: A slide groove (21) is provided on the upper surface of the lower load-bearing plate (8), and a component (22) is fixedly mounted on the upper surface of the lower load-bearing plate (8).

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