Bending resistance testing machine

Abstract

The utility model relates to the technical field of anti-bending testing machines, and discloses an anti-bending testing machine which comprises an upper beam, one side of the upper beam is rotatably connected with a rotating block, one side of the rotating block is fixedly connected with a support, the support is internally and rotatably connected with a first screw rod, and the support is internally and fixedly connected with a limiting rod. A servo motor is fixedly connected to one side of the support, the output end of the servo motor penetrates through the support and is fixedly connected with a first screw through a coupler, a balance column is rotationally connected to the outer wall of the first screw, a through hole is formed in the balance column in a penetrating mode, and the limiting rod is arranged in the through hole in a sliding mode. According to the anti-bending testing machine, through the arrangement of a servo motor, a first screw rod and a limiting rod, when the anti-bending testing machine is used for leveling, the servo motor drives the first screw rod to rotate, and a balance column is moved in a bracket, so that the anti-bending testing machine is more convenient to level.

Description

Technical Field

[0001] The present application relates to the technical field of flexural testing machines, and in particular to a flexural testing machine. Background Art

[0002] Cement mortar is a test specimen mixture made of cement and standard sand for testing cement strength. It can be used to test cement-related mechanical experiments, such as compression and flexural tests using the mortar method. Generally, a flexural testing machine is used for testing.

[0003] The existing patent (publication number: CN203178138U) discloses a multifunctional electric bending tester, which includes a base, a first nut and a second nut are provided on the base, and an electric control box is fixed at one end of the base. The left end of the main lever is connected to the first balance block, and a connecting screw is provided at one end of the first balance block, and the connecting screw is connected to the second balance block through a thread. The right end of the main lever is slidably connected to the floating weight, and the lower end of the floating weight is threadedly connected to the transmission screw. A main scale is provided on the side of the main lever, and an anti-bending mechanism is mounted on the main lever through a first blade frame.

[0004] The above-mentioned comparative document points out that the device of the utility model has two measuring ranges and can perform a variety of flexural strength tests. The test results are highly accurate and easy to adjust. However, the device still uses manual adjustment when leveling it. The adjustment process requires the operator to manually turn the screw to adjust the balance block, and the adjustment process is time-consuming. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a flexural testing machine with advantages such as electric leveling, which solves the problem that the device still uses manual adjustment when leveling itself, and the adjustment process requires the operator to manually turn the screw to adjust the balance block, and the adjustment process is time-consuming.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a flexural testing machine, comprising an upper beam, a rotating block rotatably connected to one side of the upper beam, a bracket fixedly connected to one side of the rotating block, a first screw rotatably connected inside the bracket, a limiting rod fixedly connected inside the bracket, a servo motor fixedly connected to one side of the bracket, an output end of the servo motor passes through the bracket and is fixedly connected to the first screw via a coupling, a balance column rotatably connected to the outer wall of the first screw, a through hole is penetrated inside the balance column, and the limit rod is slidably arranged inside the through hole.

[0007] Through the above scheme, through the setting of the servo motor, the first screw and the limit rod, when the device is leveled during use, the servo motor drives the first screw to rotate, and the balance column is moved inside the bracket, so that the leveling of the device is more convenient. The servo motor is used as the power, so that the rotation of the first screw can be controlled more accurately, and the leveling can be continued quickly, and the balance column can be made to slide on the outer wall of the limit rod through the limit rod.

[0008] Furthermore, a scale is fixedly connected to one side of the rotating block, a baffle is fixedly connected to the end of the scale away from the rotating block, a second screw is rotatably connected between the baffle and the rotating block, a first slide groove is opened through one side of the upper beam, and a weight is threadedly connected to the outside of the second screw.

[0009] Through the above scheme, the position of the weight is adjusted by rotating the second screw. Since the weight is threadedly connected to the second screw, when the screw rotates, the weight moves along the screw, thereby achieving loading of the sample.

[0010] Furthermore, one side of the rotating block is fixedly connected to a fixed block, one side of the fixed block is fixedly connected to a motor, and an output end of the motor passes through the fixed block and is fixedly connected to the second screw through a coupling.

[0011] According to the above solution, since the output end of the motor is connected to the second screw, the rotation of the second screw can be controlled by controlling the speed and direction of the motor, thereby achieving adjustment of the weight.

[0012] Furthermore, the bottom end of the fixed block is rotatably connected to a first connecting rod, the bottom end of the first connecting rod is fixedly connected to a first rotating seat, a lever is rotatably connected inside the first rotating seat, an end of the lever away from the first rotating seat is rotatably connected to a second rotating seat, one side of the lever is rotatably connected to a second connecting rod, and the bottom end of the second connecting rod is fixedly connected to a clamp.

[0013] Through the above solution, when the weight moves, the clamp is moved up and down through the linkage device composed of the first connecting rod, the lever and the second connecting rod.

[0014] Furthermore, the bottom end of the upper beam is fixedly connected to a pillar, the bottom end of the pillar is fixedly connected to a base plate, the upper end of the base plate is fixedly connected to a support block, the internal thread of the support block is connected to a threaded column, the upper end of the threaded column is fixedly connected to a handwheel, and the upper end of the handwheel is rotatably connected to an anti-bending clamp.

[0015] Through the above solution, the position of the threaded column in the support block can be adjusted by turning the hand wheel, thereby adjusting the height and position of the anti-folding clamp.

[0016] Furthermore, a second slide groove corresponding to the ruler is arranged through the inside of the weight, and the ruler is slidably arranged inside the second slide groove.

[0017] Through the above solution, the weight slides on the outer wall of the ruler through the second sliding groove, making the displacement measurement more accurate and reliable.

[0018] Furthermore, the baffle is slidably arranged inside the first sliding groove.

[0019] Through the above solution, the baffle slides in the first slide groove to limit the height of the tilting of one end of the ruler.

[0020] Furthermore, the anti-bending clamp is slidably arranged inside the clamp.

[0021] Through the above solution, the anti-bending clamp can slide inside the clamp to fix the cement mortar inside the clamp.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The bending tester is provided with a servo motor, a first screw rod and a limit rod. When the device is leveled during use, the servo motor drives the first screw rod to rotate, and the balance column is moved inside the bracket, so that the leveling of the device is more convenient. The servo motor is used as a power so that the rotation of the first screw rod can be controlled more accurately, and the leveling can be continued quickly, and the limit rod is used to make the balance column slide on the outer wall of the limit rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the structure of the leveling device of the present application;

[0026] Figure 3 This is a schematic diagram of the upper beam structure of the structure of this application;

[0027] Figure 4 A schematic diagram of the broken structure of the structure of this application;

[0028] Figure 5 This is a schematic diagram of the base plate structure of the present application.

[0029] In the figure:

[0030] 1. Upper beam; 2. Rotating block; 3. Bracket; 4. First screw; 5. Limit rod; 6. Servo motor; 7. Balance column; 8. Through hole; 9. Ruler; 10. Second screw; 11. Baffle; 12. First slide; 13. Weight; 14. Fixed block; 15. Motor; 16. First connecting rod; 17. First rotating seat; 18. Lever; 19. Second rotating seat; 20. Second connecting rod; 21. Clamp; 22. Pillar; 23. Bottom plate; 24. Support block; 25. Threaded column; 26. Hand wheel; 27. Anti-bending clamp; 28. Second slide. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, a bending tester includes an upper beam 1, a rotating block 2 is rotatably connected to one side of the upper beam 1, a bracket 3 is fixedly connected to one side of the rotating block 2, a first screw rod 4 is rotatably connected inside the bracket 3, a limiting rod 5 is fixedly connected inside the bracket 3, a servo motor 6 is fixedly connected to one side of the bracket 3, an output end of the servo motor 6 passes through the bracket 3 and is fixedly connected to the first screw 4 through a coupling, a balancing column 7 is rotatably connected to the outer wall of the first screw 4, when the device is leveled in use, the first screw 4 is driven to rotate by the servo motor 6, and the balancing column 7 is moved inside the bracket 3, so that the device is leveled and the leveling is more convenient, a through hole 8 is penetrated inside the balancing column 7, and the limiting rod 5 is slidably arranged inside the through hole 8, and the balancing column 7 slides on the outer wall of the limiting rod 5 through the limiting rod 5.

[0033] See also Figure 1 , Figure 3 and Figure 4A scale 9 is fixedly connected to one side of the rotating block 2, and a baffle 11 is fixedly connected to the end of the scale 9 away from the rotating block 2. A second screw 10 is rotatably connected between the baffle 11 and the rotating block 2. A first slide groove 12 is penetrated inside one side of the upper beam 1, and a weight 13 is threadedly connected to the outside of the second screw 10. The position of the weight 13 is adjusted by rotating the second screw 10. Since the weight 13 and the second screw 10 are threadedly connected, when the screw rotates, the weight 13 will move along the screw, thereby realizing the loading of the sample. A fixed block 14 is fixedly connected to one side of the rotating block 2, and a motor 15 is fixedly connected to one side of the fixed block 14. The output end of the motor 15 penetrates the fixed block 14 and is fixedly connected to the second screw 10 through a coupling. Since the output end of the motor 15 is connected to the second screw 10, the rotation of the second screw 10 can be controlled by controlling the speed and direction of the motor 15, thereby realizing the adjustment of the weight 13.

[0034] See also Figure 1 and Figure 4 The bottom end of the fixed block 14 is rotatably connected to a first connecting rod 16, the bottom end of the first connecting rod 16 is fixedly connected to a first rotating seat 17, a lever 18 is rotatably connected inside the first rotating seat 17, one end of the lever 18 away from the first rotating seat 17 is rotatably connected to a second rotating seat 19, one side of the lever 18 is rotatably connected to a second connecting rod 20, and the bottom end of the second connecting rod 20 is fixedly connected to a clamp 21. When the weight 13 moves, the clamp 21 is moved up and down through the linkage device composed of the first connecting rod 16, the lever 18, and the second connecting rod 20.

[0035] See also Figure 1 , Figure 4 and Figure 5 The bottom end of the upper beam 1 is fixedly connected to a support column 22, the bottom end of the support column 22 is fixedly connected to a bottom plate 23, the upper end of the bottom plate 23 is fixedly connected to a support block 24, the support block 24 is internally threaded with a threaded column 25, the upper end of the threaded column 25 is fixedly connected to a hand wheel 26, and the upper end of the hand wheel 26 is rotatably connected to an anti-bending clamp 27. By rotating the hand wheel 26, the position of the threaded column 25 in the support block 24 can be adjusted, thereby adjusting the height and position of the anti-bending clamp 27. The weight 13 is provided with a scale 9 corresponds to the second slide groove 28, the scale 9 is slidably set inside the second slide groove 28, the weight 13 slides on the outer wall of the scale 9 through the second slide groove 28, so that the displacement measurement is more accurate and reliable, the baffle 11 is slidably set inside the first slide groove 12, the baffle 11 slides in the first slide groove 12, and is used to limit the height of the tilting of one end of the scale 9, the anti-bending clamp 27 is slidably set inside the clamp 21, the anti-bending clamp 27 can slide inside the clamp 21, and is used to fix the cement mortar inside the clamp 21.

[0036] In this embodiment, the bending tester is provided with a servo motor 6, a first screw 4 and a limit rod 5. When the device is leveled during use, the servo motor 6 drives the first screw 4 to rotate, and moves the balance column 7 inside the bracket 3, so that the leveling of the device is more convenient. The servo motor 6 is used as the power to control the rotation of the first screw 4 more accurately, and then the leveling is continued quickly, and the limit rod 5 is used to make the balance column 7 slide on the outer wall of the limit rod 5.

[0037] It should be noted that the scale 9 and the second screw 10 can be moved by the rotating block 2 .

[0038] The working principle of the above embodiment is:

[0039] The cement mortar sample to be tested is fixed between the anti-bending fixture 27 and the fixture 21. Ensure that the sample is firmly fixed so as to carry out accurate anti-bending test. By turning the hand wheel 26, the position of the threaded column 25 in the support block 24 is adjusted, thereby adjusting the height and position of the anti-bending fixture 27. The servo motor 6 is used to further level the entire device through the first screw 4 and the balance column 7. The output end of the servo motor 6 is fixedly connected to the first screw 4 through a coupling. The balance column 7 can be moved by turning the first screw 4. Fine adjustment is performed inside the bracket 3 until the device is completely horizontal. The second screw 10 is driven to rotate by the motor 15. Since the weight 13 is threadedly connected to the second screw 10, when the screw rotates, the weight 13 will move along the screw, thereby realizing the loading of the sample. Through the linkage device composed of the first connecting rod 16, the lever 18 and the second connecting rod 20, the fixture 21 will apply pressure to the sample and start the anti-bending test. During the test, the reading change of the ruler 9 can be observed to record the anti-bending deformation of the sample. Since the weight 13 is provided with a second slide groove 28 corresponding to the scale 9, and the scale 9 is slidably arranged inside the second slide groove 28, the accuracy and reliability of the displacement measurement can be ensured. When the sample breaks or reaches the predetermined test condition, the motor 15 is stopped, the position of the weight 13 is fixed, and the reading is taken through the scale 9.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A bending test machine, comprising an upper beam (1), characterized in that: One side of the upper beam (1) is rotatably connected to a rotating block (2), one side of the rotating block (2) is fixedly connected to a bracket (3), a first screw rod (4) is rotatably connected inside the bracket (3), a limit rod (5) is fixedly connected inside the bracket (3), one side of the bracket (3) is fixedly connected to a servo motor (6), an output end of the servo motor (6) passes through the bracket (3) and is fixedly connected to the first screw rod (4) via a coupling, a balancing column (7) is rotatably connected to the outer wall of the first screw rod (4), a through hole (8) is provided inside the balancing column (7), and the limit rod (5) is slidably provided inside the through hole (8).

2. A bending tester according to claim 1, characterized in that: A scale (9) is fixedly connected to one side of the rotating block (2); a baffle (11) is fixedly connected to one end of the scale (9) away from the rotating block (2); a second screw (10) is rotatably connected between the baffle (11) and the rotating block (2); a first sliding groove (12) is provided through one side of the upper beam (1); and a weight (13) is threadedly connected to the outside of the second screw (10).

3. A bending tester according to claim 1, characterized in that: One side of the rotating block (2) is fixedly connected to a fixed block (14), one side of the fixed block (14) is fixedly connected to a motor (15), and an output end of the motor (15) passes through the fixed block (14) and is fixedly connected to the second screw rod (10) via a coupling.

4. A bending tester according to claim 3, characterized in that: The bottom end of the fixed block (14) is rotatably connected to a first connecting rod (16), the bottom end of the first connecting rod (16) is fixedly connected to a first rotating seat (17), a lever (18) is rotatably connected inside the first rotating seat (17), one end of the lever (18) away from the first rotating seat (17) is rotatably connected to a second rotating seat (19), one side of the lever (18) is rotatably connected to a second connecting rod (20), and the bottom end of the second connecting rod (20) is fixedly connected to a clamp (21).

5. The bending test machine according to claim 1, characterized in that: The bottom end of the upper beam (1) is fixedly connected to a support column (22), the bottom end of the support column (22) is fixedly connected to a bottom plate (23), the top end of the bottom plate (23) is fixedly connected to a support block (24), the support block (24) is internally threadedly connected to a threaded column (25), the top end of the threaded column (25) is fixedly connected to a hand wheel (26), and the top end of the hand wheel (26) is rotatably connected to an anti-bending clamp (27).

6. A bending tester according to claim 2, characterized in that: A second sliding groove (28) corresponding to the scale (9) is provided through the inside of the weight (13), and the scale (9) is slidably arranged inside the second sliding groove (28).

7. A bending tester according to claim 2, characterized in that: The baffle (11) is slidably arranged inside the first sliding groove (12).

8. The bending test machine according to claim 5, characterized in that: The anti-bending clamp (27) is slidably arranged inside the clamp (21).

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