Cement mortar bending resistance detector

Abstract

The utility model relates to a cement mortar bending resistance detector, which is characterized in that a test block is positioned below a pressing and folding mechanism, then the pressing and folding mechanism is operated, the pressing and folding mechanism descends, a sliding frame synchronously descends along with the pressing and folding mechanism, and when a clamping assembly descends to a proper position, a rotating driving piece can be operated to drive the clamping assembly to rotate; the rotation driving part drives the reverse rotation assembly to move, then the reverse rotation assembly drives the two limiting rollers to reversely rotate, the test block is subjected to auxiliary clamping under the cooperation of the two limiting rollers, then the pressing and folding mechanism continues to run, the pressing and holding mechanism continues to descend, and the test block is subjected to a bending test; the sliding frame slides towards the upper part of the pressing and folding mechanism, so that the pressing and folding mechanism can perform a compression resistance experiment better, after the experiment is completed, the rotating driving piece can be operated, so that the limitation of the limiting roller on the test block is relieved, and then the pressing and folding mechanism is operated, so that the pressing and folding mechanism relieves the pressure pressed on the test block and drives the sliding frame to ascend.

Description

Technical Field

[0001] The utility model relates to the technical field of cement mortar flexural strength testing, in particular to a cement mortar flexural strength tester. Background Art

[0002] A cement flexural strength testing machine is mainly used for testing the flexural strength of cement mortar by cement plants, construction units and relevant professional colleges and universities, and can also be used for testing the flexural strength of other non-metallic brittle materials.

[0003] In order to prevent large displacement of cement test blocks during the flexural test, fixtures are usually arranged on the test block placement table to assist in clamping the test blocks. During the use of the cement flexural strength testing machine, when performing a flexural test on a cement block, after the cement block is broken, the broken cement blocks often enter the fixture, which is not easy to take out and affects the subsequent operation of the fixture. Since the fixture is arranged on the placement table, it is inconvenient for the operator to clean the placement table, greatly reducing the cleaning efficiency of the placement table and thus affecting subsequent experiments. Summary of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In order to solve the above problems of the prior art, the utility model provides a cement mortar flexural strength tester, which can more conveniently and efficiently perform flexural tests on cement mortar test blocks, enable the cement mortar test blocks to be better fixed during the flexural test, prevent the broken cement blocks from affecting the use of the fixture, and enable the placement table to be better cleaned, so that the device can be better used subsequently.

[0006] (II) Technical Solutions

[0007] In order to achieve the above purpose, the main technical solutions adopted by the utility model include:

[0008] A cement mortar flexural strength tester includes a placement table, a pressing and folding mechanism, and a limiting mechanism. The pressing and folding mechanism is arranged on the upper part of the placement table, and the limiting mechanism is connected to the pressing and folding mechanism;

[0009] The limiting mechanism includes a sliding frame and a clamping assembly. The sliding frame is slidably connected to the pressing and folding mechanism, and a clamping assembly is arranged on both sides of the sliding frame;

[0010] The clamping assembly includes a rotation driving member, a reverse rotation assembly, a rotating shaft and a limiting roller. The limiting rollers are oppositely arranged on one side of the sliding frame. The upper part of one limiting roller is rotatably connected to the sliding frame through a rotating shaft, and one rotating shaft is connected to the other rotating shaft through the reverse rotation assembly. The rotation driving member is drivingly connected to the reverse rotation assembly.

[0011] Further, the reverse rotation assembly includes two first gears and two second gears. One of the first gears is provided on each of the rotating shafts. The second gears are all rotatably connected to the sliding frame. One side of one second gear meshes with one side of the other second gear. The other side of one second gear meshes with one of the first gears, and the other side of the other second gear meshes with the other first gear. The rotation driving member is drivingly connected to one of the second gears.

[0012] Further, the folding mechanism includes a frame, a first linear driving member, a lifting member, a first sliding rod, and a folding head. The lower part of the frame is connected to the placing table. The first linear driving member is connected to the upper part of the frame. The first linear driving member is linearly drivingly connected to the upper part of the lifting member. The folding head is detachably connected to the lower part of the lifting member. One of the first sliding rods is provided on each side of the lifting member. The upper parts of the first sliding rods are slidably connected to the frame. The sliding frame is slidably connected to the lower parts of the first sliding rods.

[0013] Further, a center mark is provided directly below the folding head. The center mark is provided on the upper surface of the placing table.

[0014] Further, a cleaning assembly is further included. The cleaning assembly is connected to the lower part of the frame;

[0015] The cleaning assembly includes a second linear driving member, a second sliding rod, and a pushing plate. The pushing plate is slidably connected to the frame through the second sliding rod. The bottom surface of the pushing plate is movably connected to the upper surface of the placing table. The second linear driving member is linearly drivingly connected to the pushing plate.

[0016] Further, a scraping plate is further included. The scraping plate is further provided on the bottom surface of the pushing plate. The lower part of the scraping plate is in contact with the upper surface of the placing table.

[0017] Further, a collection box is further included. A receiving groove adapted to the collection box is provided below the placing table. The collection box is slidably connected to the receiving groove through a slider.

[0018] Further, a PLC controller is further included. The PLC controller is electrically connected to the folding mechanism and the limiting mechanism respectively.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of the present utility model are as follows: During the actual production and use process, when it is necessary to conduct a flexural test on a cement mortar test block, the test block can be placed on the placement table, and the test block is positioned below the pressing and folding mechanism. Subsequently, the pressing and folding mechanism is operated to lower it. At the same time, the sliding frame follows the pressing and folding mechanism to descend synchronously. When the clamping assembly descends to an appropriate position, the rotational driving member can be operated to drive the reverse rotation assembly to move. Subsequently, the reverse rotation assembly drives the two limiting rollers to rotate in the reverse direction, enabling the test block to be assisted in clamping under the cooperation of the two limiting rollers. Then, the pressing and folding mechanism is continuously operated to continue descending and conduct a flexural test on the test block. When the pressing and folding mechanism descends, the sliding frame slides towards the upper part of the pressing and folding mechanism, enabling the pressing and folding mechanism to better conduct a compressive test. After the experiment is completed, the rotational driving member can be operated to release the restriction of the limiting rollers on the test block. Then, the pressing and folding mechanism is operated to relieve the pressure exerted on the test block and drive the sliding frame to rise, causing the limiting rollers to disengage from the placement table, thereby enabling the placement table to be better cleaned. Thus, it is possible to more conveniently and efficiently conduct a flexural inspection on the cement mortar test block, enabling the cement mortar test block to be better fixed during the flexural test, preventing the broken cement blocks from affecting the use of the fixture, and enabling the placement table to be better cleaned, thereby enabling the device to better perform subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. is a schematic diagram of the overall structure of the cement mortar flexural tester according to an embodiment of the present utility model;

[0022] Figure 2 FIG. is a schematic diagram of the overall structure of the cement mortar flexural tester according to an embodiment of the present utility model;

[0023] Figure 3 FIG. is a front view of the overall structure of the cement mortar flexural tester according to an embodiment of the present utility model;

[0024] Figure 4 FIG. is a schematic diagram of the clamping assembly of the cement mortar flexural tester according to an embodiment of the present utility model;

[0025]

DESCRIPTION OF THE REFERENCE NUMERALS

[0026] Pressing and folding mechanism 1, limiting mechanism 2, placement table 3, collection box 4, center mark 5, scraping plate 6, push plate 7, second sliding rod 8, second linear driving member 9, test block 10, slider 11, first sliding rod 101, lifting member 102, pressing and folding head 103, frame 104, first linear driving member 105, sliding frame 201, limiting roller 202, rotational driving member 203, rotating shaft 204, second gear 205, first gear 206. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] In order to better explain the present utility model for easier understanding, the present utility model will be described in detail below with reference to the accompanying drawings and through specific embodiments.

[0028] Please refer to Figures 1 to 4 As shown, a flexural strength tester for cement mortar of the present utility model includes a placement table 3, a pressing and folding mechanism 1, and a limiting mechanism 2. The pressing and folding mechanism 1 is disposed on the upper part of the placement table 3, and the limiting mechanism 2 is connected to the pressing and folding mechanism 1.

[0029] The limiting mechanism 2 includes a sliding frame 201 and a clamping assembly. The sliding frame 201 is slidably connected to the pressing and folding mechanism 1, and a clamping assembly is disposed on both sides of the sliding frame 201.

[0030] The clamping assembly includes a rotation driving member 203, a reverse rotation assembly, a rotating shaft 204, and a limiting roller 202. The limiting rollers 202 are oppositely disposed on one side of the sliding frame 201. The upper part of one limiting roller 202 is rotatably connected to the sliding frame 201 through a rotating shaft 204. One rotating shaft 204 is connected to the other rotating shaft 204 through the reverse rotation assembly, and the rotation driving member 203 is drivingly connected to the reverse rotation assembly.

[0031] The working principle of the present utility model is as follows: During actual production and use, when a flexural strength test needs to be performed on a cement mortar test block 10, the test block 10 can be placed on the placement table 3 and the test block 10 is positioned below the pressing and folding mechanism 1. Subsequently, the pressing and folding mechanism 1 is operated to lower it. At the same time, the sliding frame 201 follows the pressing and folding mechanism 1 to descend synchronously. When the clamping assembly descends to an appropriate position, the rotation driving member 203 can be operated to drive the reverse rotation assembly to move. Subsequently, the reverse rotation assembly drives the two limiting rollers 202 to rotate in the reverse direction, so that the test block 10 is assisted in clamping under the cooperation of the two limiting rollers 202. Then, the pressing and folding mechanism 1 is continuously operated to continue descending and perform a flexural strength test on the test block 10. When the pressing and folding mechanism 1 descends, the sliding frame 201 slides towards the upper part of the pressing and folding mechanism 1, enabling the pressing and folding mechanism 1 to better perform the compressive test. After the test is completed, the rotation driving member 203 can be operated to release the restriction of the limiting rollers 202 on the test block 10. Subsequently, the pressing and folding mechanism 1 is operated to relieve the pressure applied to the test block 10 and drive the sliding frame 201 to rise, causing the limiting rollers 202 to move away from the placement table 3, so that the placement table 3 can be better cleaned.

[0032] Further, the reverse rotation assembly includes two first gears 206 and two second gears 205. One of the first gears 206 is provided on each of the rotating shafts 204. The second gears 205 are all rotatably connected to the sliding frame 201. One side of one second gear 205 meshes with one side of the other second gear 205. The other side of one second gear 205 meshes with one of the first gears 206, and the other side of the other second gear 205 meshes with the other first gear 206. The rotation driving member 203 is drivingly connected to one of the second gears 205.

[0033] As can be seen from the above description, when it is necessary to assist in clamping the test block 10, the rotation driving member 203 can be operated to drive one of the second gears 205 to rotate. Subsequently, the second gear 205 transmits the power to the other second gear 205 and the first gear 206, causing the two limiting rollers 202 to rotate in opposite directions driven by the first gear 206, so that the test block 10 is assisted in positioning under the cooperation of the two limiting rollers 202.

[0034] Further, the folding and pressing mechanism 1 includes a frame 104, a first linear driving member 105, a lifting member 102, a first sliding rod 101, and a folding and pressing head 103. The lower part of the frame 104 is connected to the placing table 3. The first linear driving member 105 is connected to the upper part of the frame 104. The first linear driving member 105 is linearly drivingly connected to the upper part of the lifting member 102. The folding and pressing head 103 is detachably connected to the lower part of the lifting member 102. One of the first sliding rods 101 is provided on each side of the lifting member 102. The upper parts of the first sliding rods 101 are slidably connected to the frame 104, and the sliding frame 201 is slidably connected to the lower parts of the first sliding rods 101.

[0035] As can be seen from the above description, when it is necessary to assist in clamping the test block 10, the first linear driving member 105 can be operated to drive the lifting block to descend. Subsequently, the sliding frame 201 follows the lifting block to descend synchronously. After descending to an appropriate position, the clamping assembly can be operated to fix the test block 10. Subsequently, the first linear driving member 105 is continuously operated to drive the folding and pressing head 103 to descend through the lifting block, so that the folding and pressing head 103 performs a flexural test on the test block 10. When the folding and pressing head 103 continues to descend, the sliding frame 201 slides upward along the sliding rod, so that the limiting roller 202 does not affect the pressing of the folding and pressing head 103 on the test block 10.

[0036] Further, a center mark 5 is provided directly below the folding and pressing head 103. The center mark 5 is provided on the upper surface of the placing table 3.

[0037] From the above description, it is beneficial for the operator to better place the test block 10 at the position of the center mark 5, enabling the test block 10 to better conduct the compressive test.

[0038] Furthermore, it also includes a cleaning component, which is connected to the lower part of the frame 104;

[0039] The cleaning component includes a second linear driving member 9, a second sliding rod 8 and a pushing plate 7. The pushing plate 7 is slidably connected to the frame 104 through the second sliding rod 8. The bottom surface of the pushing plate 7 is movably connected to the upper surface of the placing table 3. The second linear driving member 9 is linearly drivingly connected to the pushing plate 7.

[0040] From the above description, it is beneficial that after the folding and pressing mechanism 1 is reset, the second linear driving member 9 can be operated, so that the second linear driving member 9 drives the pushing plate 7 to move, and the pushing plate 7 pushes the test block 10 and the debris ejected from the test block 10 out of the placing table 3, facilitating the subsequent detection of the test block 10.

[0041] Furthermore, it also includes a scraping plate 6. The scraping plate 6 is also arranged on the bottom surface of the pushing plate 7, and the lower part of the scraping plate 6 is attached to the upper surface of the placing table 3.

[0042] From the above description, it is beneficial that when the pushing plate 7 pushes the test block 10, the scraping plate 6 scrapes the upper surface of the placing table 3, so that the residual fine dust on the placing table 3 can be pushed out of the placing table 3 together.

[0043] Furthermore, it also includes a collection box 4. An accommodating groove adapted to the collection box 4 is arranged below the placing table 3. The collection box 4 is slidably connected to the accommodating groove through a slider 11.

[0044] From the above description, it is beneficial that when it is necessary to clean the placing table 3, the operator can pull out the collection box 4 from the accommodating groove, and then operate the cleaning component, so that the cleaning component pushes the test block 10 on the placing table 3 and the debris ejected from the test block 10 into the collection box 4 for collection.

[0045] Furthermore, it also includes a PLC controller, and the PLC controller is electrically connected to the folding and pressing mechanism 1 and the limiting mechanism 2 respectively.

[0046] From the above description, it is beneficial to adjust the parameters of the cement mortar flexural strength tester through the PLC controller, and it makes the operator more convenient when operating the cement mortar flexural strength tester.

[0047] Embodiment 1

[0048] Please refer to Figures 1 to 4, a flexural strength tester for cement mortar, comprising a placement table 3, a pressing and folding mechanism 1 and a limiting mechanism 2. The pressing and folding mechanism 1 is arranged on the upper part of the placement table 3, and the limiting mechanism 2 is connected to the pressing and folding mechanism 1;

[0049] The limiting mechanism 2 includes a sliding frame 201 and a clamping assembly. The sliding frame 201 is slidably connected to the pressing and folding mechanism 1, and a clamping assembly is arranged on both sides of the sliding frame 201;

[0050] The clamping assembly includes a rotation driving member 203, a reverse rotation assembly, a rotating shaft 204 and a limiting roller 202. The limiting rollers 202 are oppositely arranged on one side of the sliding frame 201. The upper part of one limiting roller 202 is rotatably connected to the sliding frame 201 through a rotating shaft 204. One rotating shaft 204 is connected to the other rotating shaft 204 through the reverse rotation assembly, and the rotation driving member 203 is drivingly connected to the reverse rotation assembly;

[0051] Installation grooves for the reverse rotation assembly are arranged on both sides of the sliding frame 201, and the reverse rotation assembly is arranged inside the installation grooves, which is beneficial to isolating the influence of the fragmentation of the test block 10 on the operation of the reverse rotation assembly;

[0052] The rotation driving member 203 adopts a servo motor, which is beneficial to better controlling the rotation angle of the limiting roller 202 and enabling the limiting roller 202 to better limit the test block 10;

[0053] The reverse rotation assembly includes two first gears 206 and two second gears 205. One first gear 206 is arranged on each rotating shaft 204. The second gears 205 are rotatably connected to the sliding frame 201. One side of one second gear 205 is meshed with one side of the other second gear 205. The other side of one second gear 205 is meshed with one first gear 206, and the other side of the other second gear 205 is meshed with the other first gear 206. The rotation driving member 203 is drivingly connected to one second gear 205;

[0054] The folding mechanism 1 includes a frame 104, a first linear drive 105, a lifting member 102, a first slide bar 101, and a folding head 103. The lower part of the frame 104 is connected to the placement table 3. The first linear drive 105 is connected to the upper part of the frame 104. The first linear drive 105 is linearly drivingly connected to the upper part of the lifting member 102. The lower part of the lifting member 102 is detachably connected to the folding head 103. A first slide bar 101 is arranged on each of the two sides of the lifting member 102. The upper parts of the first slide bars 101 are slidably connected to the frame 104. The sliding frame 201 is slidably connected to the lower parts of the first slide bars 101;

[0055] A first slide hole adapted to the first slide bar 101 is provided in the upper part of the frame 104. One first slide bar 101 is slidably connected to one first slide hole;

[0056] A second slide hole adapted to the first slide bar 101 is provided on the sliding frame 201. The sliding frame 201 is slidably connected to the first slide bar 101 through the second slide hole;

[0057] The first linear drive 105 uses a hydraulic cylinder;

[0058] A center mark 5 is provided directly below the folding head 103. The center mark 5 is provided on the upper surface of the placement table 3;

[0059] It further includes a cleaning component, and the cleaning component is connected to the lower part of the frame 104;

[0060] The cleaning component includes a second linear drive 9, a second slide bar 8, and a push plate 7. The push plate 7 is slidably connected to the frame 104 through the second slide bar 8. The bottom surface of the push plate 7 is movably connected to the upper surface of the placement table 3. The second linear drive 9 is linearly drivingly connected to the push plate 7;

[0061] The second linear drive 9 uses a cylinder;

[0062] It further includes a scraper 6. The scraper 6 is further provided on the bottom surface of the push plate 7. The lower part of the scraper 6 is in contact with the upper surface of the placement table 3;

[0063] The scraper 6 is made of rubber material, so that the scraper 6 is not easily damaged when scraping the upper surface of the placement table 3;

[0064] It further includes a collection box 4. A receiving groove adapted to the collection box 4 is provided in the lower part of the placement table 3. The collection box 4 is slidably hole-connected to the receiving groove through a slider 11;

[0065] It further includes a PLC controller, and the PLC controller is electrically connected to the folding mechanism 1 and the limiting mechanism 2 respectively;

[0066] The model of the PLC controller is DATA-7311, and the PLC controller is electrically connected to the first linear driving member 105, the second linear driving member 9 and the rotary driving member 203 respectively.

[0067] The above shows and describes the basic principles, main features and advantages of the present invention. Moreover, the standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0068] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A cement mortar flexural tester, characterized in that: It includes a placement table, a folding mechanism and a limiting mechanism, wherein the folding mechanism is arranged on the upper part of the placement table, and the limiting mechanism is connected with the folding mechanism; The limiting mechanism includes a sliding frame and a clamping assembly, the sliding frame is slidably connected to the folding mechanism, and a clamping assembly is disposed on both sides of the sliding frame; The clamping assembly includes a rotating drive member, a reverse rotating assembly, a rotating shaft and a limiting roller. The limiting roller is arranged on one side of the sliding frame. The upper part of each limiting roller is rotatably connected to the sliding frame through a rotating shaft. One rotating shaft is connected to another rotating shaft through the reverse rotating assembly. The rotating drive member is drivingly connected to the reverse rotating assembly.

2. The cement mortar flexural resistance tester according to claim 1, characterized in that: The reverse rotation component includes two first gears and two second gears, one of the first gears is arranged on the rotating shaft, and each of the second gears is rotatably connected to the sliding frame, one side of the second gear is meshed with one side of another second gear, the other side of one second gear is meshed with one first gear, and the other side of another second gear is meshed with another first gear, and the rotating driving member is drivingly connected to one of the second gears.

3. The cement mortar flexural resistance tester according to claim 1, characterized in that: The folding mechanism includes a frame, a first linear drive member, a lifting member, a first slide bar and a folding head. The lower part of the frame is connected to the placement table, the first linear drive member is connected to the upper part of the frame, the first linear drive member is linearly driven connected to the upper part of the lifting member, the lower part of the lifting member is detachably connected to the folding head, the first slide bar is provided on both sides of the lifting member, the upper part of the first slide bar is slidably connected to the frame, and the sliding frame is slidably connected to the lower part of the first slide bar.

4. The cement mortar flexural resistance tester according to claim 3, characterized in that: A center mark is arranged directly below the folding head, and the center mark is arranged on the upper surface of the placing table.

5. The cement mortar flexural resistance tester according to claim 3, characterized in that: Also included is a cleaning assembly, the cleaning assembly being connected to the lower portion of the frame; The cleaning assembly includes a second linear drive member, a second slide rod and a push plate, the push plate is slidably connected to the frame via the second slide rod, the bottom surface of the push plate is movably connected to the upper surface of the placement table, and the second linear drive member is linearly drivenly connected to the push plate.

6. The cement mortar flexural resistance tester according to claim 5, characterized in that: It also includes a scraper, and the bottom surface of the push plate is also provided with the scraper, and the lower part of the scraper is in contact with the upper surface of the placement table.

7. The cement mortar flexural resistance tester according to claim 1, characterized in that: It also includes a collection box. The lower part of the placement table is provided with a receiving groove adapted to the collection box. The collection box is connected to the sliding hole of the receiving groove through a sliding block.

8. The cement mortar flexural resistance tester according to claim 1, characterized in that: It also includes a PLC controller, which is electrically connected to the pressing mechanism and the limiting mechanism respectively.

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