A road pressure testing device

Abstract

The utility model discloses a road pressure testing arrangement, specifically related to road pressure test technical field, including support base plate, the upper end installation of support base plate is limit frame, and the inboard of limit frame is installed and is unloaded top rod, and the upper end of support base plate is provided with drive material frame, and the inboard of drive material frame is provided with triangle groove, and the inside of triangle groove is provided with triangle sliding block, and the outside of drive material frame is installed and has telescopic link, and one end of telescopic link away from drive material frame is installed and has moved block, and the outside of telescopic link is covered and is provided with return spring, and the upper end of moved block is installed and has special-shaped elastic link, and one end of special-shaped elastic link away from moved block is fixedly connected with triangle sliding block, and the lower pressure mechanism is seted up on support base plate, and the wheel roll mechanism is seted up on lower pressure mechanism. The utility model discloses through drive material frame removal trigger linkage, when contacting unloading top rod, its push linkage makes triangle sliding block eject test board, has solved the problem that test board is deadlocked in limit frame because of pitch spread, has realized smooth unloading.

Description

Technical Field

[0001] This utility model relates to the field of road pressure testing technology, and more specifically, to a road pressure testing device. Background Technology

[0002] Currently, asphalt is often used in road construction because it has excellent insulation, heat insulation, moisture-proof, seepage-proof, waterproof, corrosion-proof, and rust-proof properties. Since asphalt is applied to the roadbed surface, pressure resistance testing is required to achieve better protective effects.

[0003] Common road pressure testing devices can only test the pressure resistance of asphalt roads, but lack the function of assisting unloading. In the actual testing process, the test plate containing asphalt needs to be placed under the test wheel and positioned by the limiting structure. However, under pressure, the asphalt spreads and increases the size of the test plate, causing it to get stuck in the limiting structure and difficult to remove, ultimately causing the problem of unloading difficulties.

[0004] In summary, in order to ensure smooth unloading, it is necessary to solve the problem that the asphalt paving will increase the size of the test plate, causing it to get stuck in the limiting structure. The solution is to push the test plate out of the limiting structure during unloading to prevent it from getting stuck. Utility Model Content

[0005] The present invention provides a road pressure testing device to solve the problem that when asphalt is spread under pressure, the size of the test plate will increase, causing it to get stuck in the limiting structure and difficult to remove.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a road pressure testing device, comprising a supporting base plate, a limiting frame installed on the upper end of the supporting base plate, a material unloading rod installed on the inner side of the limiting frame, a driving material frame provided on the upper end of the supporting base plate, a triangular groove opened on the inner side of the driving material frame, a triangular slider provided inside the triangular groove, a telescopic rod installed on the outer side of the driving material frame, a moving block installed on the end of the telescopic rod away from the driving material frame, a return spring sleeved on the outer side of the telescopic rod, a non-standard elastic rod installed on the upper end of the moving block, the end of the non-standard elastic rod away from the moving block being fixedly connected to the triangular slider, a pressing mechanism provided on the supporting base plate, and a roller rolling mechanism provided on the pressing mechanism.

[0007] In a preferred embodiment, the output end of the pressing mechanism is connected to the wheel rolling mechanism. The pressing mechanism is used to control the lifting and lowering movement of the wheel rolling mechanism. The pressing mechanism includes a power component and a lifting component. The output end of the power component is connected to the lifting component. The power component is used to control the lifting and lowering movement of the lifting component. The connection end of the lifting component is connected to the wheel rolling mechanism. The lifting component is used to control the pressing force of the wheel rolling mechanism.

[0008] In a preferred embodiment, the power assembly includes four support slides mounted on the upper end of a support base plate, a top plate mounted on the upper end of the support slides, and a hydraulic cylinder mounted on the upper end of the top plate. The four support slides are arranged in a rectangular pattern.

[0009] In a preferred embodiment, the lifting assembly includes a lifting plate installed at the output end of a hydraulic cylinder and lifting sliders installed at the four corners of the lifting plate. The four lifting sliders are slidably connected to four support rods, and the hydraulic cylinder is used to control the lifting movement of the lifting plate.

[0010] In a preferred embodiment, the roller mechanism is used to apply pressure to the test plate. The roller mechanism includes a rotating component and a pressure roller component. The rotating end of the rotating component is connected to the pressure roller component. The rotating component is used to control the rotational movement of the pressure roller component. The pressure roller component is used to rotate in accordance with the moving test plate.

[0011] In a preferred embodiment, the rotating assembly includes two mounting plates mounted on the lower end of the lifting plate and a rotating shaft mounted on the surface of the mounting plates.

[0012] In a preferred embodiment, the pressure roller assembly includes a fixed plate mounted on the end of the rotating shaft away from the mounting plate and a pressure measuring roller disposed between the two fixed plates, the pressure measuring roller being fixedly connected to the fixed plate.

[0013] In a preferred embodiment, a motor is mounted on the outside of the limiting frame, and a lead screw is mounted on the output end of the motor. The lead screw is threadedly connected to the drive frame, and the motor is used to control the rotation of the lead screw.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention triggers a linkage action by driving the horizontal movement of the material frame. When the material frame moves to the unloading top rod, the unloading top rod pushes the moving block and compresses the telescopic rod and the return spring. The linkage irregular elastic rod drives the triangular slider to slide out of the triangular groove and push the test plate, thereby effectively solving the problem that the test plate is stuck in the limit frame and difficult to remove due to the asphalt being pressed and spread, and realizing the smooth unloading of the test plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the horizontal moving component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the lifting component structure of this utility model;

[0019] Figure 4 This is an exploded view of the pressure roller assembly of this utility model;

[0020] Figure 5 This is an exploded view of the inclined material assembly of this utility model.

[0021] The attached diagram is labeled as follows: 1. Support base plate; 11. Limiting frame; 12. Unloading top rod; 13. Drive material frame; 14. Triangular groove; 15. Triangular slider; 16. Telescopic rod; 17. Moving block; 18. Return spring; 19. Irregular elastic rod; 20. Motor; 21. Lead screw; 311. Support slide rod; 312. Top plate; 313. Hydraulic cylinder; 321. Lifting plate; 322. Lifting slider; 411. Mounting plate; 412. Rotating shaft; 421. Fixed plate; 422. Pressure measuring wheel. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5 A road pressure testing device includes a supporting base plate 1, a limiting frame 11 installed on the upper end of the supporting base plate 1, a discharge top rod 12 installed on the inner side of the limiting frame 11, a driving material frame 13 provided on the upper end of the supporting base plate 1, a triangular groove 14 opened on the inner side of the driving material frame 13, a triangular slider 15 provided inside the triangular groove 14, a telescopic rod 16 installed on the outer side of the driving material frame 13, a moving block 17 installed on the end of the telescopic rod 16 away from the driving material frame 13, a return spring 18 sleeved on the outer side of the telescopic rod 16, a special-shaped elastic rod 19 installed on the upper end of the moving block 17, the end of the special-shaped elastic rod 19 away from the moving block 17 being fixedly connected to the triangular slider 15, a pressing mechanism provided on the supporting base plate 1, and a wheel rolling mechanism provided on the pressing mechanism.

[0024] It should be noted that the unloading top rod 12 is a key component. Its function is to trigger the triangular slider 15 after the test to push the test plate, which may be stuck due to the pressure and spread of asphalt, out of the limiting frame 11. The movement of the driving material frame 13 is the core of triggering the unloading action. The triangular groove 14, triangular slider 15, telescopic rod 16, moving block 17, return spring 18, and special-shaped elastic rod 19 together constitute a precise linkage mechanism. When the driving material frame 13 moves to the unloading top rod 12, the unloading top rod 12 will press against the moving block 17, thereby causing the moving block 17 to compress the telescopic rod 16 and the return spring 18. At the same time, the moving block 17 drives the triangular slider 15 to slide along the inner wall of the driving material frame 13 through the special-shaped elastic rod 19. The special-shaped elastic rod 19 can be made of elastic materials such as glass fiber. When the triangular slider 15 slides out of the triangular groove 14, it pushes the test plate located inside the driving material frame 13 to move outward.

[0025] It is worth noting that the design of this unloading mechanism cleverly utilizes the kinetic energy of the drive frame 13 itself. When the test plate completes the test stroke, the unloading action is automatically triggered. The design of the irregular elastic rod 19 provides the necessary elasticity and motion trajectory conversion, ensuring that the triangular slider 15 slides smoothly in the triangular groove 14, thereby pushing the test plate out of the drive frame 13. The reset spring 18 resets the entire linkage mechanism after the unloading action is completed, preparing for the next test.

[0026] Refer to the instruction manual appendix Figures 1 to 3 The output end of the pressing mechanism is connected to the roller milling mechanism. The pressing mechanism is used to control the lifting and lowering movement of the roller milling mechanism. The pressing mechanism includes a power component and a lifting component. The output end of the power component is connected to the lifting component. The power component is used to control the lifting and lowering movement of the lifting component. The connection end of the lifting component is connected to the roller milling mechanism. The lifting component is used to control the pressing force of the roller milling mechanism.

[0027] It should be noted that the core function of this mechanism is to precisely control the pressure and position applied to the test plate by the wheel rolling mechanism. The power component is the source of force, providing the power required for lifting and lowering. The lifting component is the force transmission and guidance mechanism, ensuring that the wheel rolling mechanism can lift and lower stably and vertically, and transmitting the force generated by the power component to the wheel rolling mechanism.

[0028] Refer to the instruction manual appendix Figure 3 The power assembly includes four support slide rods 311 mounted on the upper end of the support base plate 1, a top plate 312 mounted on the upper end of the support slide rods 311, and a hydraulic cylinder 313 mounted on the upper end of the top plate 312. The four support slide rods 311 are arranged in a rectangular shape.

[0029] It should be noted that the four support slides 311 not only support the top plate 312 and the hydraulic cylinder 313, but more importantly, they provide a precise vertical guide rail for the subsequent lifting components. The four rectangular support points provide optimal stability and resistance to eccentric loads. The top plate 312 is a fixed platform for installing the hydraulic cylinder 313. The hydraulic cylinder 313 serves as a power source, providing stable and precisely controllable downward pressure.

[0030] Refer to the instruction manual appendix Figure 3 The lifting assembly includes a lifting plate 321 installed at the output end of a hydraulic cylinder 313 and lifting sliders 322 installed at the four corners of the lifting plate 321. The four lifting sliders 322 are slidably connected to four support rods 311 respectively. The hydraulic cylinder 313 is used to control the lifting movement of the lifting plate 321.

[0031] It should be noted that the lifting plate 321 is a key component connecting the power hydraulic cylinder 313 and the roller mechanism, and directly bears the downward pressure. The four lifting sliders 322 are respectively fitted on the four support slide rods 311 to ensure that the lifting plate 321 can only move smoothly and with low friction in the vertical direction. The extension and retraction of the piston rod of the hydraulic cylinder 313 directly drives the lifting plate 321 to rise and fall.

[0032] Refer to the instruction manual appendix Figures 1 to 4 The roller mechanism is used to apply pressure to the test plate. The roller mechanism includes a rotating component and a pressure roller component. The rotating end of the rotating component is connected to the pressure roller component. The rotating component is used to control the rotational movement of the pressure roller component. The pressure roller component is used to rotate in accordance with the moving test plate.

[0033] It should be noted that the rotating component is responsible for supporting the pressure roller assembly and allowing it to rotate freely. The pressure roller assembly is the component that directly contacts and rolls the test plate, and its core function is to simulate the rolling pressure of vehicle tires on the road surface.

[0034] It is worth noting that the key feature of the pressure roller assembly is that the pressure roller 422 rotates following the moving test plate. This means that the pressure roller 422 is not actively driven to rotate, but is passively driven to rotate by friction through the driving material frame 13 driven by the horizontally moving test plate. This design more realistically simulates the rolling state of actual vehicle tires on the road surface and avoids the additional shear force that the actively driven wheel may introduce from affecting the test results.

[0035] Refer to the instruction manual appendix Figure 4 The rotating assembly includes two mounting plates 411 mounted on the lower end of the lifting plate 321 and a rotating shaft 412 mounted on the surface of the mounting plates 411.

[0036] It should be noted that the two mounting plates 411 are fixed below the lifting plate 321 to provide support at both ends for the rotating shaft 412, which is the rotation center axis of the pressure roller assembly.

[0037] Refer to the instruction manual appendix Figure 4 The pressure roller assembly includes a fixed plate 421 mounted on the end of the rotating shaft 412 away from the mounting plate 411 and a pressure measuring roller 422 disposed between the two fixed plates 421. The pressure measuring roller 422 is fixedly connected to the fixed plate 421.

[0038] It should be noted that the two fixed discs 421 are fixed on both sides of the pressure roller 422, mainly to clamp and position the pressure roller 422, and to transfer the load borne by the pressure roller 422 to the rotating shaft 412. The pressure roller 422 is the core component for performing the compaction test, and its wheel surface characteristics directly affect the test results.

[0039] Refer to the instruction manual appendix Figures 1 to 2 A motor 20 is installed on the outside of the limiting frame 11. A lead screw 21 is installed at the output end of the motor 20. The lead screw 21 is threadedly connected to the drive material frame 13. The motor 20 is used to control the rotation of the lead screw 21.

[0040] It should be noted that the motor 20 provides rotational power, and the lead screw 21 converts the rotational motion of the motor 20 into the precise linear motion required to drive the material frame 13. The lead screw 21 cooperates with the threaded hole on the material frame 13 to achieve transmission.

[0041] Working principle: First, the test plate containing asphalt is placed inside the drive material frame 13. The motor 20 is started, and the motor 20 drives the lead screw 21 to rotate. Since the lead screw 21 is threadedly connected to the drive material frame 13, the rotation of the lead screw 21 drives the drive material frame 13 to move horizontally, thereby moving the test plate inside it through the area set by the limit frame 11 on the support base plate 1 and moving it downwards towards the roller rolling mechanism. At the same time, the hydraulic cylinder 313 in the pressing mechanism is started. The piston rod of the hydraulic cylinder 313 extends downwards, pushing the lifting plate 321 downwards. The lifting sliders 322 installed at the four corners of the lifting plate 321 slide downwards along the support slide rod 311 to ensure a smooth lifting process. As the lifting plate 321 moves downward, the roller mechanism fixed at its lower end descends as a whole. The pressure-measuring roller 422 in the roller mechanism, supported by the rotating shaft 412, contacts the surface of the test plate that has moved below it. When the drive frame 13 continuously moves the test plate horizontally, the pressure-measuring roller 422 begins to rotate passively under the frictional force on the test plate surface, simulating the rolling process of vehicle tires on the road surface. The downward pressure applied by the hydraulic cylinder 313 is transmitted to the pressure-measuring roller 422 through the lifting plate 321, mounting plate 411, rotating shaft 412, and fixed plate 421, applying a set pressure to the test plate to complete the pressure test of the road material. Once the test plate has completed its rolling stroke, it moves downward... When the material reaches the designated position, the critical unloading process is triggered. The drive frame 13 moves to the vicinity of the unloading top rod 12 installed inside the limit frame 11. The unloading top rod 12 presses against the moving block 17 installed on the outside of the drive frame 13. After being subjected to force, the moving block 17 compresses the telescopic rod 16 inward and compresses the return spring 18 sleeved on the outside of the telescopic rod 16. The moving block 17 drives the irregular elastic rod 19 fixed to it to move horizontally. The irregular elastic rod 19 is fixedly connected to the triangular slider 15, thereby pushing the triangular slider 15 to slide horizontally along the inclined surface of the triangular groove 14 opened inside the drive frame 13. When the triangular slider 15 slides out of the triangular groove 14, its end faces outward. Extending and sliding along the inner wall of the drive frame 13, the triangular slider 15 acts precisely on the end face of the test plate located inside the drive frame 13. The continuously moving drive frame 13 causes the triangular slider 15 to continue pushing the test plate in the extended state, overcoming the jamming force generated by the test plate and the limiting frame 11 due to pressure deformation or asphalt spreading. Finally, the test plate is smoothly pushed out of the drive frame 13 for unloading. After unloading, the test plate is removed, the motor 20 reverses to drive the drive frame 13 to reset, the moving block 17 returns to its original position under the elastic force of the reset spring 18, and the triangular slider 15 slides back into the triangular groove 14 under the drive of the irregular elastic rod 19, preparing for the next test.

[0042] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A road pressure testing device, characterized in that: The system includes a support base plate (1), a limit frame (11) installed on the upper end of the support base plate (1), a discharge top rod (12) installed on the inner side of the limit frame (11), a drive material frame (13) provided on the upper end of the support base plate (1), a triangular groove (14) opened on the inner side of the drive material frame (13), a triangular slider (15) provided inside the triangular groove (14), a telescopic rod (16) installed on the outer side of the drive material frame (13), a moving block (17) installed on the end of the telescopic rod (16) away from the drive material frame (13), a reset spring (18) sleeved on the outer side of the telescopic rod (16), a special-shaped elastic rod (19) installed on the upper end of the moving block (17), and a fixed connection between the end of the special-shaped elastic rod (19) away from the moving block (17) and the triangular slider (15). A pressing mechanism is provided on the support base plate (1), and a roller rolling mechanism is provided on the pressing mechanism.

2. The road pressure testing device according to claim 1, characterized in that: The output end of the pressing mechanism is connected to the roller milling mechanism. The pressing mechanism is used to control the lifting and lowering movement of the roller milling mechanism. The pressing mechanism includes a power component and a lifting component. The output end of the power component is connected to the lifting component. The power component is used to control the lifting and lowering movement of the lifting component. The connection end of the lifting component is connected to the roller milling mechanism. The lifting component is used to control the pressing force of the roller milling mechanism.

3. The road pressure testing device according to claim 2, characterized in that: The power assembly includes four support slide rods (311) mounted on the upper end of the support base plate (1), a top plate (312) mounted on the upper end of the support slide rods (311), and a hydraulic cylinder (313) mounted on the upper end of the top plate (312). The four support slide rods (311) are arranged in a rectangular shape.

4. The road pressure testing device according to claim 3, characterized in that: The lifting assembly includes a lifting plate (321) installed at the output end of a hydraulic cylinder (313) and lifting sliders (322) installed at the four corners of the lifting plate (321). The four lifting sliders (322) are slidably connected to four support rods (311) respectively. The hydraulic cylinder (313) is used to control the lifting movement of the lifting plate (321).

5. A road pressure testing device according to claim 4, characterized in that: The roller rolling mechanism is used to apply pressure to the test plate. The roller rolling mechanism includes a rotating component and a pressure roller component. The rotating end of the rotating component is connected to the pressure roller component. The rotating component is used to control the rotational movement of the pressure roller component. The pressure roller component is used to rotate in accordance with the moving test plate.

6. A road pressure testing device according to claim 5, characterized in that: The rotating assembly includes two mounting plates (411) mounted on the lower end of the lifting plate (321) and a rotating shaft (412) mounted on the surface of the mounting plates (411).

7. A road pressure testing device according to claim 6, characterized in that: The pressure roller assembly includes a fixed plate (421) mounted on the end of the rotating shaft (412) away from the mounting plate (411) and a pressure measuring roller (422) disposed between the two fixed plates (421), the pressure measuring roller (422) being fixedly connected to the fixed plate (421).

8. A road pressure testing device according to claim 1, characterized in that: A motor (20) is installed on the outside of the limiting frame (11). A lead screw (21) is installed at the output end of the motor (20). The lead screw (21) is threadedly connected to the drive frame (13). The motor (20) is used to control the rotation of the lead screw (21).

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