CN219625269U - Asphalt pavement performance detection device - Google Patents

Abstract

The disclosure belongs to the technical field of pavement performance detection, and discloses an asphalt pavement performance detection device, comprising: a workbench, at least two first threaded rods are vertically fixedly connected to the peripheral side of the workbench, and the first threaded rods The upper thread is connected with a rotating part; the lifting plate is provided with a round hole for the rotating connection of the rotating part, and the lower end of the lifting plate is connected with a second threaded rod along the horizontal rotation, and the second threaded rod The upper thread is connected with a moving block, the lower end of the moving block is fixedly connected with a pressure sensor, the lower end of the pressure sensor is fixedly connected with a wheel frame, and the lower end of the wheel frame is rotatably connected with a detection roller for rolling asphalt road test blocks. Pressure wheel. Turn the rotating part to drive the lifting plate and the detection rolling wheel to press the asphalt road test block, turn the second threaded rod to drive the detection rolling wheel to roll the asphalt road test block, observe the pressure value change, and understand the deformation degree of the asphalt road test block and Stress resistance.

Description

An asphalt pavement performance testing device

technical field

The disclosure belongs to the technical field of pavement performance detection, and in particular relates to an asphalt pavement performance detection device.

Background technique

Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed with mineral materials. The compressive performance of asphalt pavement mainly refers to the ability of asphalt mixture to resist permanent deformation. The asphalt pavement of the material is tested for compressive performance. Therefore, an asphalt pavement performance testing device is provided for testing the compressive performance of the asphalt pavement.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present disclosure is to provide an asphalt pavement performance testing device, which solves the problem of testing the compressive performance of the asphalt pavement in the prior art.

The purpose of this disclosure can be achieved through the following technical solutions:

An asphalt pavement performance testing device, comprising:

A workbench, at least two first threaded rods are vertically fixedly connected to the peripheral side of the workbench, and a rotating member is threadedly connected to the first threaded rods;

A lifting plate, the lifting plate is provided with a round hole for the rotating connection of the rotating member;

The lower end of the lifting plate is horizontally rotatably connected with a second threaded rod, the second threaded rod is threaded with a moving block, the lower end of the moving block is fixedly connected with a pressure sensor, and the lower end of the pressure sensor is fixedly connected with a The wheel frame, the lower end of the wheel frame is rotatably connected with a detection rolling wheel for rolling the asphalt pavement test block.

Above-mentioned technical scheme, its principle and technical effect:

The lifting plate is moved down by rotating the rotating part, and then the second threaded rod, moving block, pressure sensor and detection rolling wheel move down together, and the detection rolling wheel pair contacts and presses the asphalt road test block, and the pressure fed back by the pressure sensor Determine the pressure value of the detection rolling wheel on the asphalt pavement test block pair, drive the moving block by rotating the second threaded rod and detect the lateral movement of the rolling wheel, repeatedly roll the asphalt pavement test block, and observe the feedback of the pressure sensor again The change of the pressure value can intuitively understand the deformation degree and compressive capacity of the asphalt pavement test block.

Further, the lifting plate is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first gear, the upper end of the lifting plate is rotatably connected with a second gear, and the upper end of the rotating member is fixedly connected with There is a third gear, and the first gear, the second gear and the third gear are engaged in transmission through a chain.

Further, the first gear, the second gear and the third gear are on the same level.

Further, one end of the second threaded rod is fixedly connected to the output end of the second motor, the second motor is fixedly connected to the lower end of the lifting plate, and the other end of the second threaded rod is fixed to the output end of the lifting plate The lower end of the circumference is rotated and connected.

Further, both sides of the moving block are fixedly connected with connecting rods symmetrically along the transverse direction, and the ends of the connecting rods are fixedly connected with a sleeve along the vertical direction, and a telescopic rod is slidably connected to the inner side of the sleeve. A spring is provided, the lower end of the telescopic rod is fixedly connected with a connecting plate, the lower end of the connecting plate is rotatably connected with several rollers, and a heating plate is fixedly connected with the connecting plate between adjacent rollers.

Further, the upper end of the desktop of the workbench is provided with a raised limit bar, and the inner side surrounded by the limit bar is provided with a mold.

Further, the asphalt pavement test blocks are laid in the mould.

Further, one side end of the workbench is fixedly connected with a support block, and a threaded hole penetrating in the transverse direction is opened on the support block, and a third threaded rod is threadedly connected with the threaded hole, and the third threaded rod is A baffle is fixedly connected to one end on the surface of the workbench.

Further, a crank handle is fixedly connected to the end of the third threaded rod outside the workbench.

The nouns, conjunctions or adjectives involved in the above technical solutions are explained as follows:

Fixed connection refers to the connection without any relative movement after the parts or components are fixed;

Rotational connection means that the connection between parts can make the parts rotate with each other;

Threaded connection is a detachable fixed connection, which has the advantages of simple structure, reliable connection, convenient assembly and disassembly, etc., and is widely used in the fields of mechanical engineering and connection structures;

Sliding connections are connections between parts that allow the parts to slide against each other.

Beneficial effects of the present disclosure:

By driving and detecting the pressing and rolling of the rolling wheel against the asphalt pavement test block, the pressure on the asphalt pavement test block can be simulated, and the pressure of the asphalt pavement test block can be simulated, and the pressure can be repeatedly rolled, so as to test the compressive capacity of the asphalt pavement.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art In other words, other drawings can also be obtained from these drawings on the premise of not paying creative work.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present disclosure;

Fig. 2 is a schematic structural diagram of a second threaded rod according to an embodiment of the present disclosure;

Fig. 3 is a schematic structural diagram of a detection rolling wheel according to an embodiment of the present disclosure;

Fig. 4 is a schematic structural diagram of a lifting plate according to an embodiment of the present disclosure;

Fig. 5 is a schematic structural diagram of a rotating member according to an embodiment of the present disclosure.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

In describing the present disclosure, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding", etc. Indicating orientations or positional relationships is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present disclosure .

According to the idea of the present application, an embodiment of an asphalt pavement performance detection device is described here with reference to FIG. 1 to FIG. 5 . Specifically, the detection device is constructed in a split structure, which has components such as a first threaded rod 2 , a rotating member 3 , a lifting plate 4 , a second threaded rod 5 , and a detection rolling wheel 9 . The rotating part 3 is threadedly connected with the first threaded rod 2, and connected with the lifting plate 4 in rotation. The rotating part 3 drives the rotation so that the lifting plate 4 drives the detection rolling wheel 9 to move down, and presses the asphalt road test block 29 to generate pressure, and at the same time The detection rolling wheel 9 is driven by the rotation of the second threaded rod 5 to roll the asphalt pavement test block 29, so as to detect the compressive capacity of the asphalt pavement.

Please refer to Figure 1 to Figure 5, a kind of asphalt pavement performance testing device, including:

Workbench 1, at least two first threaded rods 2 are vertically fixedly connected to the peripheral side of the workbench 1, and the first threaded rods 2 are threaded with rotating parts 3;

The lifting plate 4 is provided with a round hole 41 for the rotating connection of the rotating part 3 on the lifting plate 4;

The lower end of the lifting plate 4 is connected with a second threaded rod 5 along the lateral rotation, the second threaded rod 5 is threaded with a moving block 6, the lower end of the moving block 6 is fixedly connected with a pressure sensor 7, and the lower end of the pressure sensor 7 is fixedly connected with a wheel frame 8, the lower end of the wheel frame 8 is rotatably connected with the detection rolling wheel 9 for rolling the asphalt pavement test piece 29.

The rotating part 3 can be understood to be connected with a driving part, such as driving the rotating part 3 through the driving part, so that the rotating part 3 rotates around the axis of the circular hole 41 relative to the lifting plate 4. When the rotating part 3 rotates, the rotating part 3 Move down along the direction where the first threaded rod 2 is set, and at the same time drive the lifting plate 4 to move down. During the movement, it drives the detection rolling wheel 9 to move down together until the detection rolling wheel 9 touches and presses the asphalt road test block 29 , by observing the pressure value fed back by the pressure sensor 7, the pressure simulated by the asphalt pavement test block 29 can be determined;

The second threaded rod 5 can be understood to be connected with a driving source, such as driving the rotation of the second threaded rod 5 through the driving source, driving the moving block 6 and detecting the rolling wheel 9 to move along the direction in which the second threaded rod 5 is set, so that the detection The rolling wheel 9 repeatedly rolls the asphalt pavement test block 29, and observes the change of the pressure value fed back by the pressure sensor 7 again, so as to intuitively understand the deformation degree of the asphalt pavement test block 29 in the process of being rolled, and then It can test the compressive capacity of asphalt pavement.

Of course, in this application, there are four first threaded rods 2, and the four first threaded rods 2 are distributed around the workbench 1. By setting the four first threaded rods 2, certain stability can be achieved, so that During the downward movement of the lifting plate 4, the lifting plate 4 can be prevented from swinging.

Of course, in some occasions, there are still many ways to drive the lifting plate 4 to move up and down. As in the prior art, the electric telescopic rod is fixedly connected between the two ends of the electric telescopic rod and the workbench 1 and the lifting plate 4. By driving the electric telescopic rod to shrink, it is also possible to achieve the process that the lifting plate 4 drives the detection rolling wheel 9 to move down; of course, as the excuse of the air cylinder or hydraulic cylinder in the prior art, it only needs to be able to drive the lifting plate 4 to drive the detection rolling wheel 9 resist pressure to asphalt pavement test block 29, boost pressure gets final product.

The moving block 6 is used in this application to provide a supporting body for detecting the movement of the rolling wheel 9, and is used to support and connect the detecting rolling wheel 9. At the same time, a guide rail or a chute can also be set on the moving block 6 as required. , and the lower surface of the lifting plate 4 are slidably connected to each other. When the moving block 6 moves along the direction in which the second threaded rod 5 is set, it can constrain the specified path and prevent the moving block 6 from occurring during the movement. Offset and swing ensure the stability of detecting the movement of rolling wheel 9 .

The drive components are shown in this application, in the position shown in the figure, such as the first motor 10, the first motor 10 is fixedly connected to the lifting plate 4, the output end of the first motor 10 is fixedly connected to the first gear 11, the lifting plate 4 The upper end is rotatably connected with the second gear 12, the upper end of the rotating part 3 is fixedly connected with the third gear 13, the first gear 11, the second gear 12 and the third gear 13 are in the same horizontal plane, the first gear 11, the second gear 12 And the third gear 13 is engaged in transmission through the chain 14 . The driving of the first motor 10 drives the first gear 11 to rotate, the first gear 11 drives the transmission of the chain 14, the chain 14 drives the second gear 12 and the third gear 13 to rotate at the same time, and the third gear 13 drives the rotating member 3 to rotate. Part 3 moves down along the first threaded rod 2, and then drives the lifting plate 4 to move down. When the lifting plate 4 moves down, it drives the second threaded rod 5, moving block 6, pressure sensor 7 and detection rolling wheel 9 times. move, so as to contact and press the asphalt pavement test block 29, simulating the pressure on the asphalt pavement test block 29.

In the present application, the second gear 12 can be selectively set, and can also be set as a gear capable of adjusting the tension of the chain 14, so as to prevent the chain 14 from being too loose after installation, resulting in the possibility of detachment.

The drive source is shown in this application, in the position shown in the figure, such as the second motor 15, one end of the second threaded rod 5 is fixedly connected to the output end of the second motor 15, and the second motor 15 is fixedly connected to the bottom of the lifting plate 4. At the lower end, the other end of the second threaded rod 5 is rotationally connected with the lower end of the lifting plate 4 . The driving of the second motor 15 drives the second threaded rod 5 to rotate, and then drives the moving block 6 to move along the direction provided by the second threaded rod 5, and the movement of the moving block 6 drives the detection rolling wheel 9 to move at the same time. Block 29 carries out rolling, when detection rolling wheel 9 rolls repeatedly, asphalt pavement test block 29 can produce corresponding deformation, and then can change the pressure of detection rolling wheel 9 to asphalt road test block 29, by observing pressure sensor 7 feedback The change in the pressure value of the asphalt pavement can intuitively understand the degree of deformation of the asphalt pavement test block 29 in the process of being rolled, and then the compressive capacity of the asphalt pavement can be detected.

Both sides of the moving block 6 are fixedly connected with connecting rods 16 along the lateral symmetry, and the ends of the connecting rods 16 are fixedly connected with sleeves 17 along the vertical direction, and the inner sides of the sleeves 17 are slidably connected with telescopic rods 18, and the telescopic rods 18 are provided with springs 19. The lower end of the telescopic rod 18 is fixedly connected with a connecting plate 20, and the lower end of the connecting plate 20 is rotatably connected with several rollers 21, and a heating plate 22 is fixedly connected with the connecting plate 20 between adjacent rollers 21. When the detection rolling wheel 9 is in contact with the asphalt pavement test block 29, the roller 21 also follows the contact with the asphalt pavement test block 29, and the heating plate 22 heats the asphalt pavement test block 29, simulating the high temperature environment, the asphalt pavement bears the same pressure , the deformation degree and compressive capacity of the road surface after being rolled. When the road surface is deformed, the telescopic rod 18 moves relative to the sleeve 17, and then can be adaptively adjusted to avoid the rigid contact of the roller 21 with the asphalt road test block 29, which will affect the detection error of the detection rolling wheel 9, and can also protect the heating plate. 22, and ensure that the heating plate 22 fits the road surface for heating.

Of course, in some cases, the asphalt pavement test block 29 will be temporarily restrained. For example, the upper end of the desktop of the workbench 1 is provided with a raised limit bar 23 , and the inner side surrounded by the limit bar 23 is provided with a mold 24 . Asphalt pavement test blocks 29 are laid in the mold 24 . One side end of the workbench 1 is fixedly connected with a support block 25, and the support block 25 is provided with a threaded hole penetrating in the transverse direction, and a third threaded rod 26 is threadedly connected with the threaded hole, and the third threaded rod 26 is located on the workbench 1. One end of the surface is fixedly connected with a baffle plate 27 . A crank handle 28 is fixedly connected to the end of the third threaded rod outside the workbench 1 . When testing the compressive performance of the asphalt pavement test block 29 , the asphalt pavement test block 29 needs to be laid in the mold 24 in advance, and then the mold 24 is placed on the inner side surrounded by the limit strip 23 . Then turn rocking handle 28 to drive the 3rd threaded rod 26 to rotate, and the 3rd threaded rod 26 screw-in drives baffle plate 27 to move to the mold 24 that asphalt pavement test block 29 is housed, and then mold 24 is fixed. Avoid detecting that when the rolling wheel 9 rolls the asphalt pavement test block 29, the mold moves.

The asphalt pavement performance detection device provided by the utility model will be further described below in conjunction with the accompanying drawings and implementation methods.

An asphalt pavement performance testing device, comprising:

Workbench 1, at least two first threaded rods 2 are vertically fixedly connected to the peripheral side of the workbench 1, and the first threaded rods 2 are threaded with rotating parts 3;

The lifting plate 4 is provided with a round hole 41 for the rotating connection of the rotating part 3 on the lifting plate 4;

The lower end of the lifting plate 4 is connected with a second threaded rod 5 along the lateral rotation, the second threaded rod 5 is threaded with a moving block 6, the lower end of the moving block 6 is fixedly connected with a pressure sensor 7, and the lower end of the pressure sensor 7 is fixedly connected with a wheel frame 8, the lower end of the wheel frame 8 is rotatably connected with the detection rolling wheel 9 for rolling the asphalt pavement test block 29.

The lifting plate 4 is moved down by turning the rotating part 3, and then the second threaded rod 5, the moving block 6, the pressure sensor 7 and the detection rolling wheel 9 move down together, and the detection rolling wheel 9 pairs contact and press the asphalt road test block 29. Through the pressure value fed back by the pressure sensor 7, determine the pressure value of the detection rolling wheel 9 to the asphalt pavement test block 29, and drive the moving block 6 and the detection rolling wheel 9 to move laterally by rotating the second threaded rod 5. The road test block 29 is rolled repeatedly, and the change of the pressure value fed back by the pressure sensor 7 is observed again, so that the degree of deformation and the compression resistance of the asphalt road test block 29 can be intuitively understood.

The lifting plate 4 is fixedly connected with a first motor 10, the output end of the first motor 10 is fixedly connected with a first gear 11, the upper end of the lifting plate 4 is rotatably connected with a second gear 12, and the upper end of the rotating member 3 is fixedly connected with a third gear 13. The first gear 11 , the second gear 12 and the third gear 13 are on the same horizontal plane, and the first gear 11 , the second gear 12 and the third gear 13 are meshed and driven by a chain 14 . Drive the first motor 10, drive the chain 14, so that the third gear 13 rotates at the same time, the third gear 13 drives the rotating part 3 to rotate and move down along the first threaded rod 2, and drives the lifting plate 4 and the detection rolling wheel 9 to move down, Make detection rolling wheel 9 press against rolling asphalt pavement test piece 29.

One end of the second threaded rod 5 is fixedly connected to the output end of the second motor 15 , the second motor 15 is fixedly connected to the lower end of the lifting plate 4 , and the other end of the second threaded rod 5 is rotatably connected to the lower end of the lifting plate 4 . The driving of the second motor 15 drives the second threaded rod 5 to rotate, and then drives the moving block 6 to move along the direction provided by the second threaded rod 5, and the movement of the moving block 6 drives the detection rolling wheel 9 to move at the same time. Block 29 is rolled.

Both sides of the moving block 6 are fixedly connected with connecting rods 16 along the lateral symmetry, and the ends of the connecting rods 16 are fixedly connected with sleeves 17 along the vertical direction, and the inner sides of the sleeves 17 are slidably connected with telescopic rods 18, and the telescopic rods 18 are provided with springs 19. The lower end of the telescopic rod 18 is fixedly connected with a connecting plate 20, and the lower end of the connecting plate 20 is rotatably connected with several rollers 21, and a heating plate 22 is fixedly connected with the connecting plate 20 between adjacent rollers 21. When the detection rolling wheel 9 is in contact with the asphalt pavement test block 29, the roller 21 also follows the contact with the asphalt pavement test block 29, and the heating plate 22 heats the asphalt pavement test block 29, simulating the high temperature environment, the asphalt pavement bears the same pressure , the deformation degree and compressive capacity of the road surface after being rolled.

The upper end of the desktop of the workbench 1 is provided with a raised limiting bar 23 , and a mold 24 is arranged on the inside surrounded by the limiting bar 23 . Asphalt pavement test blocks 29 are laid in the mold 24 . One side end of the workbench 1 is fixedly connected with a support block 25, and the support block 25 is provided with a threaded hole penetrating in the transverse direction, and a third threaded rod 26 is threadedly connected with the threaded hole, and the third threaded rod 26 is located on the workbench 1. One end of the surface is fixedly connected with a baffle plate 27 . A crank handle 28 is fixedly connected to the end of the third threaded rod outside the workbench 1 . Rotate handle 28, the third threaded rod 26 is screwed in and drives baffle plate 27 to move to the mold 24 that asphalt pavement test block 29 is housed, and then mold 24 is fixed.

In the description of this specification, descriptions with reference to the terms "one embodiment", "example", "specific example" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one of the present disclosure. In an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The basic principles, main features and advantages of the present disclosure have been shown and described above. Those skilled in the industry should understand that the present disclosure is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the present disclosure. Variations and improvements all fall within the scope of the claimed disclosure.

Claims (9)

1. A performance detection device for asphalt pavement, comprising: A workbench (1), at least two first threaded rods (2) are fixedly connected vertically to the peripheral side of the workbench (1), and a rotating member (3) is threadedly connected to the first threaded rods (2) ); A lifting plate (4), the lifting plate (4) is provided with a round hole (41) for the rotating connection of the rotating member (3); The lower end of the lifting plate (4) is horizontally rotatably connected with a second threaded rod (5), the second threaded rod (5) is threaded with a moving block (6), and the lower end of the moving block (6) A pressure sensor (7) is fixedly connected, and the lower end of the pressure sensor (7) is fixedly connected with a wheel frame, and the lower end of the wheel frame (8) is rotatably connected with a detection roller for rolling the asphalt road test block (29). wheel (9). 2. The asphalt pavement performance detection device according to claim 1, characterized in that, the lifting plate (4) is fixedly connected with a first motor (10), and the output end of the first motor (10) is fixedly connected There is a first gear (11), the upper end of the lifting plate (4) is rotatably connected with a second gear (12), the upper end of the rotating member (3) is fixedly connected with a third gear (13), and the first gear (11), the second gear (12) and the third gear (13) are meshed and driven through a chain (14). 3. The asphalt pavement performance detection device according to claim 2, characterized in that, the first gear (11), the second gear (12) and the third gear (13) are at the same level. 4. The asphalt pavement performance detection device according to claim 1, wherein one end of the second threaded rod (5) is fixedly connected to the output end of the second motor (15), and the second motor (15) ) is fixedly connected to the lower end of the lifting plate (4), and the other end of the second threaded rod (5) is rotationally connected to the lower end of the lifting plate (4). 5. The asphalt pavement performance detection device according to claim 1, characterized in that, both sides of the moving block (6) are fixedly connected with connecting rods (16) symmetrically along the transverse direction, and the ends of the connecting rods (16) A sleeve (17) is fixedly connected vertically, and a telescopic rod (18) is slidably connected to the inner side of the sleeve (17). The telescopic rod (18) is provided with a spring (19), and the telescopic rod (18) ) is fixedly connected with a connecting plate (20), and the lower end of the connecting plate (20) is rotatably connected with several rollers (21), which are positioned between the adjacent rollers (21) and the connecting plate (20) Fixedly connected with heating plate (22). 6. The asphalt pavement performance detection device according to claim 1, characterized in that, the upper end of the desktop of the workbench (1) is provided with a raised limit strip (23), and the limit strip (23) is placed The enclosed inner side is provided with a mold (24). 7. The asphalt pavement performance detection device according to claim 6, characterized in that, the asphalt pavement test block (29) is laid in the mold (24). 8. The asphalt pavement performance detection device according to claim 1, characterized in that, one side end of the workbench (1) is fixedly connected with a support block (25), and the support block (25) is provided with an edge A threaded hole that penetrates horizontally, and a third threaded rod (26) is threadedly connected with the threaded hole, and one end of the third threaded rod (26) located on the surface of the workbench (1) is fixedly connected with a baffle (27) . 9 . The asphalt pavement performance testing device according to claim 8 , characterized in that, a crank handle ( 28 ) is fixedly connected to the end of the third threaded rod outside the workbench ( 1 ).