Equipment for detecting anti-cracking mechanical property of cement

Abstract

The utility model discloses detection equipment for cement anti-cracking mechanical properties, which belongs to the technical field of cement detection and comprises a base, a frame is fixedly mounted at the top end of the base, two symmetrically distributed door plates are hinged to one side of the frame, and a placement table is fixedly mounted on the inner wall of the bottom end of the frame. A clamping assembly is arranged above the containing table, a supporting box is fixedly installed on the inner wall of the top end of the frame body, an installation disc is arranged below the supporting box, and a second air cylinder is fixedly installed at the bottom end of the installation disc. According to the cement block detection device, through the arrangement of the clamping assembly, the first air cylinder drives the supporting column, the supporting rod and the clamping plates on the same side to move synchronously, the effect of clamping and stabilizing a cement block can be achieved through the cooperation of the two clamping plates, and the stability of cement block detection can be kept; therefore, the effect of clamping and stabilizing the cement block can be achieved, and deformation generated during detection of the cement block is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of cement detection, and more specifically to a detection device for the anti-cracking mechanical properties of cement. Background Art

[0002] In cement concrete pavements, cracks are the most common form of damage. The causes of cracks are relatively complex. In order to avoid cracks caused by quality problems of the cement itself, crack resistance tests are usually carried out during the production process of cement. The crack resistance of the finished cement concrete is judged by extruding the finished product.

[0003] Most existing cement block crack resistance testing devices simply place the concrete block on a test platform for testing. This can cause the cement block to shift during testing, resulting in significant errors in the test data. Therefore, to address this issue, we propose a device for testing the mechanical properties of cement crack resistance. Utility Model Content

[0004] In order to solve the above problems, the present invention provides a device for testing the mechanical properties of cement crack resistance, which adopts the following technical solutions:

[0005] A device for testing the mechanical properties of cement crack resistance comprises a base, a frame fixedly mounted on the top of the base, two symmetrically distributed door panels hinged on one side of the frame, a placement table fixedly mounted on the inner wall of the bottom end of the frame, a clamping assembly provided above the placement table, a support box fixedly mounted on the inner wall of the top end of the frame, a mounting plate provided below the support box, a second cylinder fixedly mounted on the bottom end of the mounting plate, a press detection assembly provided on the end of the piston shaft of the second cylinder, and a drive assembly provided between the mounting plate and the support box.

[0006] By adopting the above technical solution, when the equipment is used, the staff places the cement block on the top of the placement table installed inside the frame, and then clamps and fixes the cement block through the clamping assembly, which is conducive to maintaining the stability of the cement block during detection. When the cement block is clamped, the staff rotates the two door panels so that the two door panels fit the opposite side of the frame, which can play the role of closing the frame and achieve a protective effect. The door panels are made of transparent material, which is convenient for the staff to check the detection status of the cement block. When the door panels are closed, the second cylinder drives the press detection assembly to descend and contact the top of the cement block. The driving force generated by the second cylinder causes the press detection assembly to squeeze the cement block, and then observe the fission of the cement block, which can play the role of detecting the cement block. The driving assembly drives the installation plate to move with the press detection assembly, which plays the role of adjusting the position of the press detection assembly, making it convenient for the equipment to detect different positions of the cement block.

[0007] Furthermore, the clamping assembly has two clamps slidably installed on the top of the placing table, and the first cylinder is fixedly installed on both sides of the frame, and the two piston shafts of the first cylinder slide through the frame, and the ends of the two piston shafts of the first cylinder are fixedly installed with pillars, and movable grooves are provided on the opposite sides of the two pillars, and support rods are slidably installed in the two movable grooves, and a second spring is fixedly connected between the opposite ends of the two support rods and the inner wall of the side opposite to the movable groove on the same side, and the opposite ends of the two support rods are fixedly connected to the side opposite to the clamping plate on the same side.

[0008] By adopting the above technical solution, after the staff places the cement block on the placement table, the first cylinder drives the pillar, support rod and splint on the same side to move. The cooperation of the two splints can clamp and fix the cement block, which is beneficial to maintaining the stability of the cement block during detection. The push of the splint can adjust the position of the cement block on the top of the placement table, which is convenient for subsequent accurate detection of the equipment. When the splint contacts the opposite side of the cement block, the splint pushes the support rod to slide in the movable groove on the same side under the driving force of the first cylinder on the same side, and the support rod pushes the second spring on the same side to contract. The second spring gives the support rod on the same side a rebound force to achieve a buffering effect, which can clamp and stabilize the cement block without affecting the deformation of the cement block during detection.

[0009] Furthermore, two symmetrically distributed limiting blocks are fixedly mounted on the side walls at opposite ends of the two support rods, and limiting grooves matching the limiting blocks on the same side are formed on the inner walls of the two movable grooves.

[0010] By adopting the above technical solution, when the support rod slides in the movable groove on the same side, the support rod slides in the limit groove on the same side with the limit block. The cooperation between the limit block and the limit groove is conducive to maintaining the stability of the sliding of the support rod and helps to prevent the support rod from leaving the movable groove on the same side.

[0011] Furthermore, the press detection assembly includes a connecting plate fixedly mounted on the end of the second cylinder piston shaft, a pressing plate is provided below the connecting plate, a plurality of multi-section telescopic columns distributed in a circular array are fixedly connected between the top of the pressing plate and the bottom of the connecting plate, the side walls of the multi-section telescopic columns are all sleeved with a first spring, and a pressure sensor is provided at the bottom of the connecting plate.

[0012] By adopting the above technical solution, when the cement block is fixed, the second cylinder drives the connecting plate and the pressing plate to descend synchronously, so that the pressing plate contacts the top of the cement block. The second cylinder continuously drives the cement to apply pressure, which can detect the cement block. A multi-section telescopic column and a first spring are provided between the connecting plate and the pressing plate, which stabilize the connecting plate and the pressing plate and act as a buffer. A pressure sensor is provided at the bottom of the connecting plate, which can detect the pressure on the cement block, making it convenient for the staff to calculate the crack resistance of the cement block according to the condition of the cement block.

[0013] Furthermore, the driving assembly includes a screw rotatably installed in the support box, the side wall of the screw is sleeved with a support block, the bottom end of the support block slides through the support box and is fixedly connected to the top of the mounting plate, an installation box is fixedly installed on one side of the support box, the installation box passes through the frame at one end away from the support box, a reduction motor is fixedly installed in the installation box, the screw passes through the frame at one end close to the reduction motor and extends into the installation box, the screw passes through one end of the installation box and is fixedly connected to the end of the output shaft of the reduction motor, sliders are fixedly installed on both sides of the support block, and a sliding groove matching the slider on the same side is opened on the inner wall of the support box.

[0014] By adopting the above technical solution, the screw is driven to rotate by the reduction motor, and the screw drives the support block to slide in the support box. The support block moves synchronously with the mounting plate and the pressing plate, thereby adjusting the position of the pressing plate, thereby facilitating the equipment to perform press detection on different positions of the cement block. When the support block slides inside the support box, the support block slides with the slider in the same side slide groove. The cooperation of the slider and the slide groove is conducive to improving the sliding stability of the support block.

[0015] Furthermore, a clamping block is rotatably mounted on one of the door panels away from the frame, and a mounting block is fixedly mounted on the other door panel away from the frame. A clamping slot matching the clamping block is provided on the top of the mounting block.

[0016] By adopting the above technical solution, when the cement block is clamped, the staff rotates the door panel so that the door panel fits with the opposite side of the frame, and then rotates the clamping block so that the clamping block fits with the slot opened on the top of the mounting block. The clamping of the clamping block and the slot can fix the two door panels. The cooperation of the frame and the door panel can play a protective role, which helps to prevent cement block fragments from splashing and injuring the staff.

[0017] Furthermore, a shock-absorbing pad is fixedly installed on the inner wall of the frame, and a transparent plastic plate is embedded on one side of the two door panels close to the frame.

[0018] By adopting the above technical solution, the inner wall of the frame plays a role in protecting the frame through the setting of shock-absorbing pads. The door panel is made of transparent material, which can play a protective role and make it convenient for workers to check the inspection status of cement blocks. A transparent plastic plate is embedded on the inside of the door panel, which is beneficial to improve the protective effect of the door panel.

[0019] In summary, the present invention has the following beneficial technical effects:

[0020] (1) In the present invention, by setting up the clamping assembly, the first cylinder drives the pillars, support rods and clamps on the same side to move synchronously. By cooperating with the two clamps, the cement block can be clamped firmly, which is beneficial to maintaining the stability of the cement block detection. Moreover, by cooperating with the pillars, support rods and the second spring, the cement block can be clamped firmly without affecting the deformation generated during the cement block detection.

[0021] (2) In the present invention, the first cylinder and the press detection assembly cooperate to detect cement blocks, and the driving assembly drives the mounting plate to move with the press detection assembly, so that the equipment can detect different positions of the cement blocks.

[0022] (3) In the present invention, the cooperation between the frame and the door panel plays a protective role, which helps to avoid the occurrence of cracks in the cement block during the press detection process, thereby causing some debris to splash and injure the staff, which is beneficial to maintaining the safety of equipment detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of the utility model;

[0024] Figure 2 This is an expanded view of the frame and door panel in the utility model;

[0025] Figure 3 For this utility model Figure 2 A magnified view of middle A;

[0026] Figure 4 It is a cross-sectional view of the utility model;

[0027] Figure 5 For this utility model Figure 4 Magnified view of B.

[0028] Description of the numbers in the figure:

[0029] 1. Base; 2. First cylinder; 3. Frame; 4. Mounting box; 5. Door panel; 6. Block; 7. Mounting block; 8. Support box; 9. Support block; 10. Second cylinder; 11. Pillar; 12. Clamp; 13. Placement table; 14. Support rod; 15. Connecting plate; 16. First spring; 17. Multi-section telescopic column; 18. Pressure sensor; 19. Pressing plate; 20. Screw; 21. Reducer motor; 22. Movable slot; 23. Second spring; 24. Mounting plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0033] The following is combined with Figure 1-5 The utility model is described in further detail.

[0034] See also Figure 1-5, a testing equipment for the mechanical properties of cement crack resistance, including a base 1, a frame 3 is fixedly installed on the top of the base 1, and two symmetrically distributed door panels 5 are hinged on one side of the frame 3, a placing platform 13 is fixedly installed on the inner wall of the bottom end of the frame 3, and a clamping assembly is provided above the placing platform 13, and two plywood 12 of the clamping assembly are slidably installed on the above-platform 13, a first cylinder 2 is fixedly installed on both sides of the frame 3, the two first cylinder 2 piston shafts slide through the frame 3, and the two first cylinder 2 piston shaft ends are fixedly installed with pillars 11, and movable grooves 22 are opened on the opposite sides of the two pillars 11, and support rods 14 are slidably installed in the two movable grooves 22, and a second spring 23 is fixedly connected between the opposite ends of the two support rods 14 and the inner wall of the side opposite to the movable groove 22 on the same side, and the opposite ends of the two support rods 14 are fixedly connected to the side opposite to the plywood 12 on the same side.

[0035] When the device is in use, the staff places the cement block on the top of the placement platform 13 installed inside the frame 3, and then drives the same-side pillar 11, support rod 14 and splint 12 to move through the first cylinder 2. The cooperation of the two splints 12 can clamp and fix the cement block, which is beneficial to maintaining the stability of the cement block during detection. The push of the splint 12 can adjust the position of the cement block on the top of the placement platform 13, which is convenient for subsequent accurate detection of the equipment. When the splint 12 contacts the opposite side of the cement block, the splint 12 pushes the support rod 14 to slide in the same-side movable groove 22 under the driving force of the first cylinder 2 on the same side, and the support rod 14 pushes the second spring 23 on the same side to contract. The second spring 23 gives the same-side support rod 14 a rebound force to achieve a buffering effect, which can clamp and stabilize the cement block without affecting the deformation of the cement block during detection.

[0036] Two symmetrically distributed limit blocks are fixedly installed on the side walls of the opposite ends of the two support rods 14, and the inner walls of the two movable grooves 22 are provided with limit grooves that match the limit blocks on the same side. When the support rod 14 slides in the movable groove 22 on the same side, the support rod 14 slides in the limit groove on the same side with the limit blocks. The cooperation between the limit blocks and the limit grooves is conducive to maintaining the sliding stability of the support rod 14 and helps to prevent the support rod 14 from leaving the movable groove 22 on the same side.

[0037] When the cam 5 is in the closed position, the cam 5 is in the closed position, and the cam 5 is in the closed position, so that the cam 5 can move freely, and the cam 5 can move freely, and the cam 5 can move freely, and the cam 5 can move freely.

[0038] A support box 8 is fixedly installed on the inner wall of the top of the frame 3, and a mounting plate 24 is provided below the support box 8. A second cylinder 10 is fixedly installed on the bottom of the mounting plate 24, and a press detection component is provided at the end of the piston shaft of the second cylinder 10. The press detection component includes a connecting plate 15 fixedly installed on the end of the piston shaft of the second cylinder 10, and a pressing plate 19 is provided below the connecting plate 15. A plurality of multi-section telescopic columns 17 distributed in a circular array are fixedly connected between the top of the pressing plate 19 and the bottom of the connecting plate 15. The side walls of the multi-section telescopic columns 17 are all sleeved with first springs 16, and a pressure sensor 18 is provided at the bottom of the connecting plate 15.

[0039] When the cement block is clamped, the second cylinder 10 drives the connecting plate 15 and the pressing plate 19 to descend synchronously, so that the pressing plate 19 contacts the top of the cement block. The second cylinder 10 continuously drives the cement to apply pressure, which can detect the cement block. A multi-section telescopic column 17 and a first spring 16 are provided between the connecting plate 15 and the pressing plate 19, which stabilize the connecting plate 15 and the pressing plate 19 and act as a buffer. A pressure sensor 18 is provided at the bottom of the connecting plate 15, which can detect the pressure on the cement block, making it convenient for the staff to calculate the crack resistance of the cement block according to the condition of the cement block.

[0040] A driving assembly is provided between the mounting plate 24 and the support box 8. The driving assembly includes a screw 20 rotatably mounted in the support box 8. A support block 9 is sleeved on the side wall of the screw 20. The bottom end of the support block 9 slides through the support box 8 and is fixedly connected to the top of the mounting plate 24. A mounting box 4 is fixedly mounted on one side of the support box 8. The mounting box 4 penetrates the frame 3 at one end away from the support box 8. A reduction motor 21 is fixedly mounted in the mounting box 4. The end of the screw 20 close to the reduction motor 21 penetrates the frame 3 and extends into the mounting box 4. The end of the screw 20 penetrates the mounting box 4 and is fixedly connected to the end of the output shaft of the reduction motor 21. Sliders are fixedly installed on both sides of the support block 9, and a slide groove matching the slide on the same side is opened on the inner wall of the support box 8. The screw 20 is driven to rotate by the reduction motor 21, and the screw 20 drives the support block 9 to slide in the support box 8. The support block 9 moves synchronously with the mounting plate 24 and the pressing plate 19, which plays a role in adjusting the position of the pressing plate 19, thereby facilitating the equipment to press and detect different positions of the cement block. When the support block 9 slides inside the support box 8, the support block 9 slides in the slide groove on the same side with the slider. The cooperation of the slider and the slide groove is conducive to improving the sliding stability of the support block 9.

[0041] The implementation principle of the embodiment of the present utility model is as follows: when the device is used, the staff places the cement block on the top of the placement table 13 installed inside the frame 3, and then clamps and fixes the cement block through the clamping assembly, which is beneficial to maintaining the stability of the cement block during detection. When the cement block is clamped, the staff rotates the two door panels 5 so that the two door panels 5 fit the opposite side of the frame 3, which can play the role of closing the frame 3 and achieve a protective effect. The door panels 5 are made of transparent material, which is convenient for the staff to check the detection status of the cement block. When the door panels 5 are closed, the second cylinder 10 drives the press detection assembly to descend and contact the top of the cement block. The driving force generated by the second cylinder 10 causes the press detection assembly to squeeze the cement block, and then observe the fission of the cement block, which can play the role of detecting the cement block. The driving assembly drives the mounting plate 24 to move with the press detection assembly, which plays the role of adjusting the position of the press detection assembly, so that the equipment can detect different positions of the cement block.

[0042] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for testing the mechanical properties of cement crack resistance, comprising a base (1), characterized in that: A frame (3) is fixedly mounted on the top of the base (1), two symmetrically distributed door panels (5) are hinged on one side of the frame (3), a placement platform (13) is fixedly mounted on the inner wall of the bottom end of the frame (3), a clamping assembly is provided above the placement platform (13), a support box (8) is fixedly mounted on the inner wall of the top end of the frame (3), a mounting plate (24) is provided below the support box (8), a second cylinder (10) is fixedly mounted on the bottom end of the mounting plate (24), a press detection assembly is provided at the end of the piston shaft of the second cylinder (10), and a driving assembly is provided between the mounting plate (24) and the support box (8).

2. The device for testing the anti-cracking mechanical properties of cement according to claim 1, characterized in that: The clamping assembly comprises two clamping plates (12) slidably mounted on the upper side of the placing table (13); a first cylinder (2) is fixedly mounted on both sides of the frame (3); the piston shafts of the two first cylinders (2) slide through the frame (3); the ends of the piston shafts of the two first cylinders (2) are fixedly mounted with pillars (11); movable grooves (22) are provided on opposite sides of the two pillars (11); support rods (14) are slidably mounted in the two movable grooves (22); a second spring (23) is fixedly connected between the opposite ends of the two support rods (14) and the inner wall of the opposite side of the movable groove (22) on the same side; and the opposite ends of the two support rods (14) are fixedly connected to the opposite side of the clamping plate (12) on the same side.

3. The device for testing the anti-cracking mechanical properties of cement according to claim 2, characterized in that: Two symmetrically distributed limiting blocks are fixedly mounted on the side walls at opposite ends of the two support rods (14), and limiting grooves matching the limiting blocks on the same side are formed on the inner walls of the two movable grooves (22).

4. The device for testing the anti-cracking mechanical properties of cement according to claim 1, characterized in that: The pressure detection assembly comprises a connecting plate (15) fixedly mounted on the end of the piston shaft of the second cylinder (10), a pressing plate (19) being provided below the connecting plate (15), a plurality of multi-section telescopic columns (17) distributed in an annular array being fixedly connected between the top of the pressing plate (19) and the bottom of the connecting plate (15), the side walls of the multi-section telescopic columns (17) being sleeved with a first spring (16), and a pressure sensor (18) being provided at the bottom of the connecting plate (15).

5. The device for testing the anti-cracking mechanical properties of cement according to claim 1, characterized in that: The driving assembly includes a screw rod (20) rotatably mounted in the support box (8), a support block (9) is sleeved on the side wall of the screw rod (20), the bottom end of the support block (9) slides through the support box (8) and is fixedly connected to the top of the mounting plate (24), a mounting box (4) is fixedly mounted on one side of the support box (8), the end of the mounting box (4) away from the support box (8) penetrates the frame (3), a reduction motor (21) is fixedly mounted in the mounting box (4), the end of the screw rod (20) close to the reduction motor (21) penetrates the frame (3) and extends into the mounting box (4), the end of the screw rod (20) penetrating the mounting box (4) is fixedly connected to the end of the output shaft of the reduction motor (21), sliders are fixedly mounted on both sides of the support block (9), and a sliding groove matching the slider on the same side is opened on the inner wall of the support box (8).

6. The device for testing the anti-cracking mechanical properties of cement according to claim 1, characterized in that: A clamping block (6) is rotatably mounted on one of the door panels (5) away from the frame (3), and a mounting block (7) is fixedly mounted on the other door panel (5) away from the frame (3). A clamping slot matching the clamping block (6) is provided at the top of the mounting block (7).

7. The device for testing the anti-cracking mechanical properties of cement according to claim 1, characterized in that: A shock-absorbing pad is fixedly mounted on the inner wall of the frame (3), and a transparent plastic plate is embedded on one side of the two door panels (5) close to the frame (3).

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