Device for detecting compressive capacity of highway pavement

Abstract

The utility model discloses a highway pavement compressive capacity detection device, which relates to the technical field of pavement detection, and comprises a base, the top end of the base is fixedly connected with a group of symmetrical support plates, the top ends of the support plates are fixedly connected with pressure detectors, and the opposite sides of the support plates are provided with accommodating cylinders. The bottom of the containing cylinder is movably connected with a bottom plate, supporting assemblies are arranged on the supporting plates, and the containing cylinder is movably connected to the opposite sides of the supporting plates through the supporting assemblies. According to the utility model, through the arrangement of the supporting assembly, the accommodating cylinder can be rotated through the supporting cylinder, so that a sample core can be conveniently put into the accommodating cylinder, if the sample core is broken and broken in the pressure measuring process, generated disintegrating slag can be completely concentrated in the accommodating cylinder, and by controlling the angle of the supporting cylinder, the sample core can be conveniently placed in the accommodating cylinder. Therefore, the sample cores can be conveniently poured out in a unified mode, pollution to an experiment table is reduced, and meanwhile damage to experimenters caused by sample core breakage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of road surface testing technology, specifically a device for testing the compressive strength of highway pavement. Background Technology

[0002] In the field of building materials testing, the compressive strength test of cement core samples is a crucial step in evaluating cement quality. This test typically involves applying pressure to the cement core sample until it breaks to measure its ability to withstand pressure. This process requires not only precise measuring equipment but also ensuring the safety of the testing process and the ease of core sample handling. Traditional testing equipment is often complex in structure, inconvenient to operate, and difficult to clean up after core breakage, potentially causing environmental contamination and harm to personnel.

[0003] Existing cement core compressive strength testing equipment has several significant problems during operation. First, the placement and fixing of the core is cumbersome, making it difficult to ensure that the core is in the axial position of the test container, which affects the accuracy of the test results. Second, after the core breaks during the test, the debris is difficult to handle and easily scatters, increasing the difficulty of cleaning and the risk of pollution to the experimental environment. Therefore, a highway pavement compressive strength testing device is needed to solve the existing shortcomings. Utility Model Content

[0004] One technical problem this application aims to solve is: by setting up a support component and controlling the angle of the support cylinder, it is convenient to pour out the sample uniformly, reducing contamination of the experimental table and avoiding injury to the experimental personnel caused by sample core breakage; by setting up a drive component, space is provided for the rotation of the receiving cylinder, and when the receiving cylinder is in a vertical state, the top plate will abut against the bottom plate, increasing the strength of the bottom plate and preventing the bottom plate from breaking during the sample core testing process.

[0005] To address the aforementioned technical problems, this application provides a highway pavement compressive strength testing device, comprising a base, a set of symmetrical support plates fixedly connected to the top of the base, and a pressure detector fixedly connected to the top of the support plates. A receiving cylinder is provided on the opposite side of the support plates, and a base plate is movably connected to the bottom of the receiving cylinder. Support components are provided on each support plate, and the receiving cylinder is movably connected to the opposite side of the support plate via the support components. Clamping plates are fixedly connected to the opposite sides of the support components. A driving component is provided on the base and connected to the support components. A rotating component is provided on one of the support plates and connected to the support components.

[0006] In some embodiments, the support assembly includes a sleeve, a connecting block, a support cylinder, and an adjusting rod. The connecting block is slidably connected to the inside of the support cylinder, and multiple protrusions of the connecting block are fixedly connected to the inner side of the sleeve. The inner side of the sleeve is movably connected to the outer side of the support cylinder. The adjusting rod is movably connected to the inside of the support cylinder, and the outer side of the adjusting rod is threaded. The adjusting rod passes through the connecting block, and the adjusting rod is threadedly connected to the connecting block.

[0007] In some embodiments, the end of the sleeve away from the connecting block is fixedly connected to the back side of the clamping plate, the support cylinder penetrates the wall of the receiving cylinder and is fixedly connected to the receiving cylinder, and the support cylinder movably penetrates the support plate.

[0008] In some embodiments, the drive assembly includes a drive rod, a first synchronous pulley, a second synchronous pulley, and a synchronous belt. Both ends of the drive rod are fixedly connected to the first synchronous pulley, and the end of the adjusting rod away from the sleeve is fixedly connected to the second synchronous pulley. A synchronous belt is sleeved on the outer side of adjacent first and second synchronous pulleys, and the first synchronous pulley, the second synchronous pulley, and the synchronous belt constitute a belt drive structure.

[0009] In some embodiments, the drive assembly further includes a slider, a connecting rod, and a top plate. The slider and the connecting rod are symmetrically arranged. A set of symmetrical threads is provided on the outer side of the drive rod. The drive rod passes through the slider and is threadedly connected to the slider. The bottom ends of the connecting rods are movably connected to the top ends of the slider via rotating shafts, and the top ends of the connecting rods are movably connected to the bottom ends of the top plate via rotating shafts. The top ends of the top plate abut against the bottom ends of the bottom plate.

[0010] In some embodiments, the drive rod is movably connected to the inside of the base, and the slider is slidably connected to the inside of the base. A servo motor is fixedly connected to the outside of the base, and the output end of the servo motor is fixedly connected to one end of the drive rod.

[0011] In some embodiments, the rotating assembly includes a first gear, a second gear, and a second servo motor. A support cylinder passes through the first gear and is fixedly connected to the first gear. The second gear is movably connected to the inner side of the support plate via a rotating shaft and meshes with the first gear. The second servo motor is fixedly connected to the outer side of the support plate, and the output end of the second servo motor is fixedly connected to the rotating shaft of the second gear.

[0012] Beneficial effects:

[0013] Compared with existing technologies, this highway pavement compressive strength testing device has the following advantages:

[0014] I. This utility model, through the set support component, enables the receiving cylinder to rotate, thereby facilitating the placement of the sample core inside the receiving cylinder. Furthermore, if the sample core breaks during the pressure test, the resulting fragments will all be concentrated inside the receiving cylinder. By controlling the angle of the support cylinder, it is easy to pour them out uniformly, reducing contamination of the experimental table and preventing injury to the experimental personnel caused by sample core breakage.

[0015] Second, the present invention, through the setting of the driving component, when the receiving cylinder rotates out between the support plates, the top plate will release its contact with the bottom plate, thereby providing space for the receiving cylinder to rotate. When the receiving cylinder is in a vertical state, the top plate will abut against the bottom plate, increasing the strength of the bottom plate and avoiding the bottom plate from breaking during the core sample testing process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the container cylinder of this utility model;

[0018] Figure 3 This utility model Figure 2 Schematic diagram of inverted structure;

[0019] Figure 4 This is a schematic diagram of the support component structure of this utility model;

[0020] Figure 5 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1. Base; 2. Support plate; 3. Pressure detector; 4. Receiving cylinder; 5. Base plate; 6. Support assembly; 601. Sleeve; 602. Connecting block; 603. Support cylinder; 604. Adjusting rod; 7. Clamping plate; 8. Drive assembly; 801. Drive rod; 802. Synchronous pulley one; 803. Synchronous pulley two; 804. Synchronous belt; 805. Slider; 806. Connecting rod; 807. Top plate; 9. Rotating assembly; 901. Gear one; 902. Gear two; 903. Servo motor two; 10. Servo motor one. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-5 As shown, this utility model provides a technical solution: a highway pavement compressive strength testing device, including a base 1, a set of symmetrical support plates 2 fixedly connected to the top of the base 1, and a pressure detector 3 fixedly connected to the top of the support plates 2. A pressure block is provided at the lower part of the pressure detector 3. The compressive strength data of the cement sample core can be measured by squeezing the cement sample core by the pressure block. A receiving cylinder 4 is provided on the opposite side of the support plates 2, and a bottom plate 5 is movably connected to the bottom of the receiving cylinder 4. A groove is provided at the axis of the bottom plate 5 to facilitate the sample core to be located at the axis of the receiving cylinder 4. Multiple guide grooves are provided on the inner side of the receiving cylinder 4 to facilitate the bottom plate 5 to move along the axial direction of the receiving cylinder 4. Support components 6 are provided on each support plate 2. The receiving cylinder 4 is movably connected to the opposite side of the support plate 2 through the support components 6. Clamping plates 7 are fixedly connected to the opposite side of the support components 6. A driving component 8 is provided on the base 1 and is connected to the support components 6. A rotating component 9 is provided on one of the support plates 2 and is connected to the support components 6.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the support assembly 6 includes a sleeve 601, a connecting block 602, a support cylinder 603, and an adjusting rod 604. The connecting block 602 is slidably connected to the inside of the support cylinder 603, and multiple protrusions of the connecting block 602 are fixedly connected to the inner side of the sleeve 601. The inner side of the sleeve 601 is movably connected to the outer side of the support cylinder 603. The adjusting rod 604 is movably connected to the inside of the support cylinder 603. The outer side of the adjusting rod 604 is threaded. The adjusting rod 604 passes through the connecting block 602 and is threadedly connected to the connecting block 602. The end of the sleeve 601 away from the connecting block 602 is fixedly connected to the back side of the clamping plate 7. The support cylinder 603 passes through the wall of the receiving cylinder 4 and is fixedly connected to the receiving cylinder 4. The support cylinder 603 movably passes through the support plate 2.

[0025] The support cylinder 603 allows the receiving cylinder 4 to rotate, facilitating the placement of the sample core inside the receiving cylinder 4. If the sample core breaks during the pressure test, the resulting fragments will all be concentrated inside the receiving cylinder 4. By controlling the angle of the support cylinder 603, the fragments can be easily poured out, reducing contamination of the experimental table and preventing injury to the experimental personnel caused by sample core breakage. In addition, the movement of the sleeve 601 can be controlled by adjusting the rotation of the adjusting rod 604, thereby adjusting the relative lateral distance of the clamping plate 7 and keeping the sample core inside the receiving cylinder 4.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, the drive assembly 8 includes a drive rod 801, a first synchronous pulley 802, a second synchronous pulley 803, and a synchronous belt 804. Both ends of the drive rod 801 are fixedly connected to the first synchronous pulley 802. The end of the adjusting rod 604 furthest from the sleeve 601 is fixedly connected to the second synchronous pulley 803. The outer sides of adjacent first synchronous pulleys 802 and second synchronous pulleys 803 are fitted with synchronous belts 804, and the first synchronous pulley 802, second synchronous pulley 803, and synchronous belt 804 constitute a belt drive structure. The drive assembly 8 also includes a slider 805, a connecting rod 806, and a top plate 807. The slider 805 and connecting rod 806 are symmetrically arranged. The drive rod 801... A set of symmetrical threads is provided on the outer side of 01. The drive rod 801 passes through the slider 805 and is threadedly connected to the slider 805. The bottom end of the connecting rod 806 is movably connected to the top end of the slider 805 through a rotating shaft, and the top end of the connecting rod 806 is movably connected to the bottom end of the top plate 807 through a rotating shaft. The top end of the top plate 807 abuts against the bottom end of the base plate 5. The drive rod 801 is movably connected to the inside of the base 1, and the slider 805 is slidably connected to the inside of the base 1. A servo motor 10 is fixedly connected to the outer side of the base 1, and the output end of the servo motor 10 is fixedly connected to one end of the drive rod 801.

[0027] The servo motor 10 is started, driving the drive rod 801 to rotate. Since the drive rod 801 is threadedly connected to the slider 805, the connecting rod 806 rotates, thereby driving the top plate 807 to move downwards, continuously moving away from the bottom plate 5. The bottom plate 5 moves downwards along the bottom end of the receiving cylinder 4. The drive rod 801 drives the synchronous wheel 802 to rotate synchronously. Under the action of the synchronous belt 804, the synchronous wheel 803 and the adjusting rod 604 rotate synchronously. Since the adjusting rod 604 is threadedly connected to the connecting block 602, the support cylinder 603 restricts the direction of movement of the connecting block 602, thereby driving the sleeve 601 to move, thereby controlling the clamping plates 7 to move away from each other. Therefore, when the receiving cylinder 4 rotates out of the support plates 2, the top plate 807 will release its contact with the bottom plate 5, thereby providing space for the receiving cylinder 4 to rotate. And when the receiving cylinder 4 is in a vertical state, the top plate 807 will abut against the bottom plate 5, increasing the strength of the bottom plate 5 and preventing the bottom plate 5 from breaking during the core sample testing process.

[0028] like Figure 1 , Figure 2 and Figure 3 As shown, the rotating assembly 9 includes a first gear 901, a second gear 902, and a second servo motor 903. A support cylinder 603 passes through the first gear 901 and is fixedly connected to the first gear 901. The second gear 902 is movably connected to the inner side of the support plate 2 via a rotating shaft and meshes with the first gear 901. The second servo motor 903 is fixedly connected to the outer side of the support plate 2, and the output end of the second servo motor 903 is fixedly connected to the rotating shaft of the second gear 902.

[0029] Start the servo motor 903, which drives the gear 902 to rotate. Since the gear 902 meshes with the gear 901, it controls the rotation of the support cylinder 603, thereby driving the receiving cylinder 4 to rotate around the axis of the support cylinder 603.

[0030] Working principle: In use, firstly, servo motor 10 is started, driving drive rod 801 to rotate. Since drive rod 801 is threadedly connected to slider 805, connecting rod 806 rotates, thereby driving top plate 807 to move downwards, continuously moving away from bottom plate 5. Bottom plate 5 moves downwards along the bottom end of receiving cylinder 4. Drive rod 801 drives synchronous pulley 1 802 to rotate synchronously. Under the action of synchronous belt 804, synchronous pulley 2 803 and adjusting rod 604 rotate synchronously. Since adjusting rod 604 is threadedly connected to connecting block 602, support cylinder 603 restricts the direction of movement of connecting block 602, thereby driving sleeve 601 to move, thus controlling clamping plates 7 to move away from each other. Then, servo motor 2 903 is started, driving gear 2 902 to rotate. Since gear 2 902 meshes with gear 1 901, it controls support cylinder 603 to rotate, thereby driving receiving cylinder 4 to move downwards. The receiving cylinder 4 rotates around the axis of the support cylinder 603. When the control drive rod 801 and the adjusting rod 604 rotate synchronously, the receiving cylinder 4 can rotate outward around the axis of the support cylinder 603. At this time, the cement sample core can be placed on the opposite side of the clamping plate 7. Then, the receiving cylinder 4 is controlled to rotate in the opposite direction. When the receiving cylinder 4 rotates to a vertical position, the sample core remains vertical under its own gravity. The gear 901 stops rotating, and the drive rod 801 continues to rotate, so that the top plate 807 gradually rises, pushing the bottom plate 5 upward, and the clamping plates 7 move closer to each other until the sample core is clamped. Finally, the pressure detector 3 controls its detection head to move downward into the inside of the receiving cylinder 4 and squeezes the sample core until it breaks, recording the pressure data change. Finally, the receiving cylinder 4 can be controlled to rotate outward so that its open end faces downward, making it convenient to pour out the sample core fragments.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A road surface compressive strength testing device, comprising a base (1), characterized in that: A set of symmetrical support plates (2) are fixedly connected to the top of the base (1), and a pressure detector (3) is fixedly connected to the top of the support plate (2). A receiving cylinder (4) is provided on the opposite side of the support plate (2), and a bottom plate (5) is movably connected to the bottom of the receiving cylinder (4). A support component (6) is provided on each support plate (2). The receiving cylinder (4) is movably connected to the opposite side of the support plate (2) through the support component (6), and a clamping plate (7) is fixedly connected to the opposite side of the support component (6). A driving component (8) is provided on the base (1), and the driving component (8) is connected to the support component (6). A rotating component (9) is provided on one of the support plates (2), and the rotating component (9) is connected to the support component (6).

2. The highway pavement compressive strength testing device according to claim 1, characterized in that: The support assembly (6) includes a sleeve (601), a connecting block (602), a support cylinder (603), and an adjusting rod (604). The connecting block (602) is slidably connected to the inside of the support cylinder (603), and multiple protrusions of the connecting block (602) are fixedly connected to the inner side of the sleeve (601). The inner side of the sleeve (601) is movably connected to the outer side of the support cylinder (603). The adjusting rod (604) is movably connected to the inside of the support cylinder (603). The outer side of the adjusting rod (604) is threaded. The adjusting rod (604) passes through the connecting block (602), and the adjusting rod (604) is threadedly connected to the connecting block (602).

3. The highway pavement compressive strength testing device according to claim 2, characterized in that: The sleeve (601) is fixedly connected to the back side of the clamping plate (7) at one end away from the connecting block (602). The support cylinder (603) penetrates the wall of the receiving cylinder (4) and is fixedly connected to the receiving cylinder (4). The support cylinder (603) movably penetrates the support plate (2).

4. The highway pavement compressive strength testing device according to claim 3, characterized in that: The drive assembly (8) includes a drive rod (801), a first synchronous pulley (802), a second synchronous pulley (803), and a synchronous belt (804). Both ends of the drive rod (801) are fixedly connected to the first synchronous pulley (802). The end of the adjusting rod (604) away from the sleeve (601) is fixedly connected to the second synchronous pulley (803). The outer sides of the adjacent first synchronous pulley (802) and second synchronous pulley (803) are fitted with synchronous belts (804), and the first synchronous pulley (802), second synchronous pulley (803), and synchronous belt (804) constitute a belt drive structure.

5. The highway pavement compressive strength testing device according to claim 4, characterized in that: The drive assembly (8) further includes a slider (805), a connecting rod (806), and a top plate (807). The slider (805) and the connecting rod (806) are symmetrically arranged. A set of symmetrical threads is provided on the outer side of the drive rod (801). The drive rod (801) passes through the slider (805) and is threadedly connected to the slider (805). The bottom ends of the connecting rods (806) are movably connected to the top ends of the slider (805) through rotating shafts. The top ends of the connecting rods (806) are movably connected to the bottom ends of the top plate (807) through rotating shafts. The top end of the top plate (807) abuts against the bottom end of the bottom plate (5).

6. The highway pavement compressive strength testing device according to claim 5, characterized in that: The drive rod (801) is movably connected to the inside of the base (1), and the slider (805) is slidably connected to the inside of the base (1). A servo motor (10) is fixedly connected to the outside of the base (1), and the output end of the servo motor (10) is fixedly connected to one end of the drive rod (801).

7. The highway pavement compressive strength testing device according to claim 3, characterized in that: The rotating assembly (9) includes a first gear (901), a second gear (902), and a second servo motor (903). One of the support cylinders (603) passes through the first gear (901) and is fixedly connected to the first gear (901). The second gear (902) is movably connected to the inner side of the support plate (2) via a rotating shaft and meshes with the first gear (901). The second servo motor (903) is fixedly connected to the outer side of the support plate (2), and the output end of the second servo motor (903) is fixedly connected to the rotating shaft of the second gear (902).

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