CN117907022A - Pavement compaction quality detection equipment and method thereof - Google Patents

Abstract

The invention relates to the technical field of pavement detection equipment, in particular to pavement compaction quality detection equipment and a method thereof, wherein the pavement compaction quality detection equipment comprises a machine body, a pressure application test area and a sampling construction area which are adjacently arranged at the left side and the right side of the machine body, and a control system which is arranged at the front side of the machine body and used for controlling electric components of the whole equipment; the bottom of the machine body is integrally provided with a base, and the base is provided with a placing sliding block capable of sliding in the pressure test area and the sampling construction area and used for conveying samples in the sampling construction area to the pressure test area for pressure detection; the test area of exerting pressure is including installing in the jack at organism top, through being provided with test area of exerting pressure and sample construction district respectively at the organism, can place the slider with the sample immediately after the core drilling sampling device sample finishes to carry the jack direct pressure detection of test area of exerting pressure through placing the slider, thereby realize real-time detection, can improve test data's precision to and carry out compactness detection to required road surface fast.

Description

A road surface compaction quality detection device and method thereof

Technical Field

The present invention relates to the technical field of road surface detection equipment, and in particular to a road surface compaction quality detection device and a method thereof.

Background technique

Pavement compaction testing is an important part of ensuring the quality of road construction. It involves the use of a variety of testing equipment and methods to evaluate the density and uniformity of pavement materials after compaction, including: pit digging and sand filling test compaction method, non-nuclear density meter test compaction method, core drilling test pavement compaction method, ring knife test compaction method and nuclear density and humidity meter test compaction method; in actual construction, in order to ensure the quality and uniformity of pavement compaction, the above-mentioned testing methods are often used in combination to obtain more comprehensive data support; among them, the compaction on asphalt pavement generally adopts the method of core drilling test pavement compaction, and the core drilling method requires the use of a drill and a drill bit to cut the pavement material to take out the core sample, and then the sample is cleaned and dried and sent to the test site, and the load and strength are tested using a jack, which mainly simulates the actual traffic load to apply pressure to the pavement, so as to evaluate the bearing capacity and compaction degree of the pavement material. ; The jack is usually equipped with a load sensor, which can accurately control the force applied to the road surface and record the magnitude of the applied force; during the whole process, the sensor will monitor the load applied by the jack and the response of the road surface in real time; by analyzing these data, the compaction and strength of the road surface can be evaluated; however, the existing drilling rigs cannot be used for immediate testing on site when in use, and it takes a long time to take the samples to the laboratory for testing after sampling, which may affect the final test data of the samples, and during the drilling of asphalt road samples by the drilling rig, the samples may be directly stuck in the holes drilled in the road surface, and some of the drilled samples may be easily stuck in the drill bit tube and are difficult to remove, and generally require manual hammering or buckling. However, such use will cause certain damage to both the samples and the drill bit tube, and will also affect the data of the compaction of the later sample tests and the use effect and efficiency of the equipment. Therefore, it is urgent to propose a road compaction quality testing device and method thereof.

Summary of the invention

In view of the deficiencies in the prior art, the object of the present invention is to provide a road surface compaction quality detection device to solve the problems mentioned in the above background technology.

In order to achieve the above-mentioned object, the present invention is implemented by the following technical scheme: a road surface compaction quality detection device, comprising a machine body, a pressure test area and a sampling construction area adjacently arranged on the left and right sides of the machine body, and a control system arranged on the front side of the machine body for controlling the electrical components of the entire device;

A base is integrally provided at the bottom of the machine body, and a placement slider capable of sliding between the pressure test area and the sampling construction area is provided on the base, so as to transport the sample from the sampling construction area to the pressure test area for pressure testing;

The pressure test area includes a jack installed on the top of the machine body;

The sampling construction area is provided with a core drilling sampling device, which includes a mounting frame, a mounting box that is lifted and arranged in the middle of the mounting frame, and a drill pipe that is rotatably installed at the lower side of the mounting box, and a transmission assembly for driving the drill pipe to rotate is arranged inside the mounting box;

A piston assembly is provided on the upper side of the installation box, and the piston assembly can move as a piston inside the drill pipe;

The piston assembly includes a telescopic rod installed on the top of the installation box and a connecting push plate installed at the telescopic end of the telescopic rod and adapted to the inner diameter of the drill pipe. A piston block is fixed at the bottom of the connecting push plate, and the piston block can be lifted and lowered close to the inner wall of the drill pipe;

Electric control valves are embedded and installed on both sides of the connecting push plate, and water holes and air holes are vertically opened on both sides of the piston block. The bottom ends of the two electric control valves are connected to the water holes and the air holes respectively;

A fixed air pipe and a fixed water pipe are fixedly installed on the top of the installation box, a water tank and an air pump are installed on the top of the machine body, the top of the fixed air pipe is connected to the air pump through an air pipe, and the fixed water pipe is connected to the water pump inside the water tank through a water pipe;

The top ends of the two electric control valves are respectively connected with rubber hoses, and are respectively communicated with a fixed air pipe and a fixed water pipe through the two rubber hoses.

A movable groove and a sampling port connected to the road surface are provided on the upper side of the base, the movable groove is located below the jack and the drill bit tube, the sampling port is provided on the lower side of the movable groove and corresponds to the position directly below the drill bit tube, sliding guide rods are provided on both sides of the movable groove, the bottom sides of the placement slider are slidably connected to the sliding guide rods, a linear gear row is fixedly installed on one side of the movable groove, a sliding motor is installed on one side of the placement slider, a traveling gear is installed on the shaft end of the sliding motor, and the traveling gear is meshed with the linear gear row for transmission.

On the basis of the above technical solution, the movable grooves on both sides of the sampling port are respectively provided with inclined guide slopes, and the inclined guide slopes are inclined downward toward one side of the sampling port, and the inclined guide slopes are arranged below the slider.

On the basis of the above technical solution, embedded protrusions are respectively integrally provided on both sides of the installation box, and internal lifting grooves are respectively opened on both sides of the interior of the installation frame plate. Embedded protrusions are respectively integrally provided on both sides of the installation box, and the two embedded protrusions are respectively movably embedded in the inner sides of the internal lifting grooves. Screws and sliding rods are vertically installed in the internal lifting grooves, and the screws and sliding rods are respectively penetrated by embedded protrusions, wherein the screws are threadedly connected to the embedded protrusions, and a lifting motor for driving the screw is installed on the top of the installation frame plate.

Based on the above technical solution, air inlet slots and air outlet slots are respectively provided on both sides of the top and bottom of the installation frame plate, a connecting air duct is installed in the middle of the installation frame plate to connect the air inlet slot and the air outlet slot, and a fan is installed inside the connecting air duct.

On the basis of the above technical solution, the air inlet slot and the air outlet slot are both located above the base, wherein the air inlet slot is arranged above the movable path of the slider.

On the basis of the above technical solution, a dust filter plate is installed on the inner side of the air inlet slot, and a heating rod is installed on the inner side of the air outlet slot.

Based on the above technical solution, the transmission assembly includes a rotating motor installed inside the installation box, and a driving gear installed on the rotating shaft of the rotating motor. A driven gear is sleeved on the inside of the drill bit tube, and the driving gear is meshed with the driven gear for transmission.

Based on the above technical solution, the front and rear box panels of the installation box are locked by screws.

The present invention also includes a method for using a road surface compaction quality detection device: drilling the road surface through a core sampling device in a sampling construction area, and placing the sample in a placement slide, which is then transported by the placement slide to a jack in a pressure test area for direct pressure detection. Specifically, when the core sampling device is in use, the drill pipe rotates at a high speed, and as the installation box descends on the installation frame plate, the drill pipe drills the road surface. During drilling, the road surface sample will be stuck in the drill pipe, and in the continuous downward drilling process, cooling water can be transported to a fixed water pipe through a water pump in a water tank, and the fixed water pipe transports water to a corresponding electric control valve through a rubber hose. At this time, the electric control valve of the water circuit is opened, so that cooling water enters the drill pipe, and the drill pipe is cooled and dust is settled while drilling the road surface.

After drilling is completed, the installation box moves upward. Since there is a closed cavity between the piston block and the sample in the drill tube, the water circuit electric control valve is closed and the gas circuit electric control valve is opened. The air pump is used to pump air, and the fixed air pipe and the corresponding connected rubber hose and electric control valve are acted on in turn, so that the air hole of the piston block generates negative pressure, and then the drill tube is pumped to generate negative pressure. The piston block is pulled upward with the telescopic rod to pump air, so that a greater negative pressure effect is generated in the drill tube, and the sample is more stably adsorbed in the drill tube.

Next, the drill tube moves upward to a certain height along with the installation box, and the placement slide slides to the bottom of the drill tube. At this time, the air pump and the electric control valve of the air circuit are tightly closed, and the telescopic rod pushes the piston block downward, using the air pressure to steadily push the sample in the drill tube onto the placement slide. As the sample is pushed out, the drill tube slowly rises and completely separates from the sample. At this time, the sample is transported to the jack in the pressure test area through the placement slide for direct pressure testing until the sample is broken, and the load and strength data of the jack pressure are displayed on the display screen of the control system;

During the transportation of the placement slider, since air inlet grooves and air outlet grooves are provided on both sides of the bottom of the installation box, the air flow velocity on the placement slider can be increased, and the air outlet grooves are provided with electric heating rods to blow out hot air, so the sample transported by the placement slider can be dried. The placement slider slides stably on the base under the guidance of the movable groove and the sliding guide rod, and by providing inclined guide slopes on both sides of the sampling port, the residual water in the sample can be directly guided out to the outside of the sampling port by the inclined guide slopes, and can also be dried under the action of hot air.

By adopting the above technical solution, the present invention has the following advantages compared with the existing technology:

The present invention provides a pressure test area and a sampling construction area on the machine body, and the core sampling device can immediately place the sample on a placement slide after sampling is completed, and directly apply pressure to the jack in the pressure test area by transporting the sample to the pressure test area through the placement slide, thereby achieving real-time detection, improving the accuracy of the test data, and quickly performing compaction detection on the required road surface;

When drilling road samples, the drill pipe can transport cooling water to the inside of the drill pipe through the piston assembly and the water pump in the water tank, so as to reduce the temperature of the drill bit during the drilling process of the drill pipe, reduce dust, and improve drilling efficiency. In addition, the use of the piston assembly and the air pump can generate negative pressure inside the drill pipe to adsorb the sample. Specifically, the negative pressure suction of the air pump and the action of the telescopic rod pulling the piston block upward can produce a good negative pressure adsorption effect, thereby ensuring that the sample inside the drill pipe is not easy to fall off. Similarly, the piston block slides downward, which can be used to quickly push the sample downward, and cooperates with the lifting effect of the installation box, so that the drill pipe can stably place the sample on the placement slide block for transportation.

The installation box is mainly inserted into the inner lifting groove of the installation frame plate through the embedded protrusions on both sides, so that the installation box can stably move up and down in the inner lifting groove, and then the embedded protrusions are inserted through the screw rod and the slide rod, so that the screw thread transmission embedded protrusion can be more stable when lifting and lowering, and the installation box is not easy to fall off directly downward;

The placed slider can slide stably on the base under the dual guiding action of the movable groove and the sliding guide rod, and by opening inclined guide slopes on both sides of the sampling port, the residual water in the sample can flow directly from the inclined guide slopes to the sampling port, thereby keeping the equipment dry. Since air inlet grooves and air outlet grooves are opened on both sides of the bottom of the installation box, and correspond to the conveying route of the placed slider, that is, above the movable groove, the air flow speed on the placed slider can be increased, which is beneficial to the air drying of the sample surface on the placed slider. Furthermore, an electric heating rod can be provided in the air outlet groove so that the air outlet groove blows out hot air. The higher the temperature, the faster the water evaporates, which can increase the drying speed of the sample surface on the placed slider, and dry the water on the inclined guide slope, thereby improving the use effect and efficiency of the equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

Fig. 1 is a schematic structural diagram of the present invention;

FIG2 is a schematic diagram of the structure of the pressure test area and the sampling construction area of the present invention;

FIG3 is a schematic diagram of the structure of the base and the placement slider of the present invention;

FIG4 is a schematic diagram of the structure of the core sampling device of the present invention;

FIG5 is a schematic diagram of the structure of connecting the air duct to the fan according to the present invention;

FIG6 is a schematic structural diagram of the outer side of the installation box of the present invention;

FIG7 is a schematic diagram of the internal structure of the installation box of the present invention;

FIG8 is a schematic structural diagram of a piston assembly of the present invention;

FIG9 is a schematic diagram of the structure of the connecting push plate of the present invention;

FIG10 is a schematic structural diagram of a piston block according to the present invention;

In the figure: pressure test area a, sampling construction area b, PLC control system c, body 1, base 2, movable groove 22, sampling port 23, sliding guide rod 24, inclined guide slope 25, linear gear row 26, sliding motor 27, walking gear 28, placing slider 3, jack 4, rolling wheel 5, core drilling sampling device 6, installation frame plate 60, inner lifting groove 61, screw 62, sliding rod 63, lifting motor 64, air inlet groove 65, air outlet groove 66, connecting air duct 67, fan 68, drill pipe 7, installation box 8, embedded convex block 81, rotating motor 82, driving gear 83, driven gear 84, piston assembly 9, telescopic rod 91, connecting push plate 92, piston block 93, water hole 931, air hole 932, electric control valve 94, rubber hose 95, fixed air pipe 96, fixed water pipe 97, water tank 98, air pump 99

Detailed ways

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

As shown in Figures 1 to 10, the present invention provides a technical solution for road compaction quality detection equipment: including a body 1, a pressure test area a and a sampling construction area b adjacent to the left and right sides of the body 1, and a PLC control system c arranged on the front side of the body 1 for controlling the electrical components of the entire equipment, specifically: the sliding motor 27, the electric control valve 94, the jack 4, the lifting motor 64, the fan 68, the telescopic rod 91, the rotating motor 82, the air pump 99 and the water pump in the water tank 98 are all connected to and controlled by the PLC control system c, wherein the PLC control system c is equipped with a display screen for displaying data. The PLC control system c is a control technology commonly used in the prior art, so it will not be described here.

A base 2 is integrally provided at the bottom of the body 1, and a placement slider 3 is provided on the base 2, which can slide between the pressure test area a and the sampling construction area b, and is used to transport the sample from the sampling construction area b to the pressure test area a for pressure testing; thereby, real-time testing and rapid compaction testing of the required road surface are achieved, and the testing efficiency is improved. Real-time compaction testing of road surface samples is also an effective means to ensure the quality of road engineering, and it is beneficial to improve the service life and driving safety of roads by improving the transparency and controllability of the construction process;

The pressure test area a includes a jack 4 installed on the top of the machine body 1, and the jack 4 is mainly used to perform pressure testing on the placement slide 3. The sampling construction area b is provided with a core drilling sampling device 6, which includes a mounting frame plate 60, a mounting box 8 that is lifted and arranged in the middle of the mounting frame plate 60, and a drill pipe 7 that is rotatably installed on the lower side of the mounting box 8. A transmission component for driving the drill pipe 7 to rotate is provided inside the mounting box 8, and the front and rear box plates of the mounting box 8 are locked by screws, which is convenient for the later maintenance and replacement of the internal accessories of the mounting box 8.

A piston assembly 9 is provided on the upper side of the installation box 8, and the piston assembly 9 can move as a piston inside the drill tube 7; the piston assembly 9 includes a telescopic rod 91 installed on the top of the installation box 8 and a connecting push plate 92 installed at the telescopic end of the telescopic rod 91 and adapted to the inner diameter of the drill tube 7. The telescopic rod 91 can be an electric telescopic rod or a hydraulic telescopic rod, and a piston block 93 is fixed at the bottom of the connecting push plate 92. The piston block 93 can be lifted and lowered close to the inner wall of the drill tube 7. When the piston block 93 rises, the sample in the drill tube 7 can be sucked upward by negative pressure. Similarly, when the piston block 93 is pushed forward, the sample adsorbed in the drill tube 7 can be pushed to the placement slide 3, so as to ensure stable placement and transportation of the sample;

In addition, electric control valves 94 are respectively embedded and installed on both sides of the connecting push plate 92, and water holes 931 and air holes 932 are vertically opened on both sides of the piston block 93. The bottom ends of the two electric control valves 94 are respectively connected to the water holes 931 and the air holes 932; a fixed air pipe 96 and a fixed water pipe 97 are fixedly installed on the top of the installation box 8, and a water tank 98 and an air pump 99 are installed on the top of the body 1. The top of the fixed air pipe 96 is connected to the air pump 99 through an air pipe, and the fixed water pipe 97 is connected to the water pump inside the water tank 98 through a water pipe; the two electric control valves The top of each of the two rubber hoses 95 is connected to a fixed air pipe 96 and a fixed water pipe 97 respectively. The rubber hose 95 is made of a relatively soft material, so it can bend adaptively with the lifting and lowering of the push plate 92. The main purpose of this arrangement is to allow the piston block 93 to discharge water and inhale air. According to the use requirements, the water pump in the water tank 98 can be used to transport cooling water to the inside of the drill pipe 7, so as to reduce the temperature of the drill bit during the drilling process of the drill pipe 7, reduce dust, and improve drilling efficiency.

The specific water circulation principle is as follows: the water pump in the water tank 98 delivers cooling water from the water delivery pipe to the fixed water pipe 97, and then delivers cooling water to the corresponding electric control valve 94 through the rubber hose 95 connected to the fixed water pipe 97, and then enters the water hole 931 of the piston block 93 through the opened electric control valve 94, thereby realizing the water discharge of the drill pipe 7;

The specific air circulation principle is: the air pump 99 is in the state of evacuating air, the air pump 99 is connected to the fixed air pipe 96 through the air supply pipe, the fixed air pipe 96 is connected to another electric control valve 94 through the rubber hose 95, and the electric control valve 94 is connected with the air hole 932 of the piston block 93. Therefore, under the action of the air pump 99, the inside of the drill tube 7 can be evacuated with negative pressure, thereby playing a role in adsorbing the sample, and the drill tube 7 can produce a better negative pressure adsorption effect by cooperating with the telescopic rod 91 to pull the piston block 93 upward, thereby ensuring that the sample inside the drill tube 7 is not easy to fall off; and when the piston block 93 slides downward, the sample can be quickly pushed downward.

In the above embodiment, a movable groove 22 and a sampling port 23 connected to the road surface are provided on the upper side of the base 2. The movable groove 22 is located below the jack 4 and the drill pipe 7. When the drill pipe 7 moves downward, it can pass through the sampling port 23 to drill and sample the road surface. The sampling port 23 is arranged on the lower side of the movable groove 22 and corresponds to the position directly below the drill pipe 7. Sliding guide rods 24 are respectively arranged on both sides of the movable groove 22. The two sides of the bottom of the placement slider 3 are slidably connected with the sliding guide rods 24. Under the dual guiding action of the movable groove 22 and the sliding guide rods 24, the placement slider 3 can slide stably on the base 2; and a linear gear row 26 is fixedly installed on one side of the movable groove 22, and a sliding motor 27 is installed on one side of the placement slider 3. A traveling gear 28 is installed on the shaft end of the sliding motor 27, and the traveling gear 28 is meshed with the linear gear row 26 for transmission. The traveling gear 28 is driven to rotate by the sliding motor 27, so that the traveling gear 28 can move along the meshing of the traveling gear 28, thereby realizing the left and right sliding of the placement slider 3 in the movable groove 22.

On the basis of the above technical solution, the movable grooves 22 on both sides of the sampling port 23 are respectively provided with inclined guide slopes 25, and the inclined guide slopes 25 are inclined downward toward one side of the sampling port 23, and the inclined guide slopes 25 are arranged below the placing slider 3, so that the cooling water remaining in the sample part on the placing slider 3 can flow directly from the inclined guide slopes 25 to the sampling port 23 for discharge, thereby maintaining the dryness of the equipment;

In this embodiment, in order to realize the stable lifting and lowering of the drill pipe 7 rotatably installed in the installation box 8, and to cooperate with the piston assembly 9 to stably take and place the sample, the installation box 8 is respectively provided with embedded protrusions 81 on both sides, and the inner lifting grooves 61 are respectively opened on both sides of the installation frame plate 60. The installation box 8 is respectively provided with embedded protrusions 81 on both sides. The two embedded protrusions 81 are respectively movably embedded in the inner side of the inner lifting groove 61, so that the installation box 8 can stably move up and down in the inner lifting groove 61. The screw 62 and the slide rod 63 are vertically installed in the inner lifting groove 61. The setting of the slide rod 63 further ensures the stability of the lifting and is not easy to fall off. The screw 62 and the slide bar 63 are respectively penetrated by the embedded protrusion 81, wherein the screw 62 is threadedly connected with the embedded protrusion 81, and a lifting motor 64 for driving the screw 62 is installed on the top of the mounting frame plate 60. The screw 62 is driven by the lifting motor 64, so that the screw 62 threadably drives the embedded protrusion 81 to rise and fall, which not only controls the lifting and lowering with high precision, but also makes it difficult for the mounting box 8 to fall off directly downward; and when the piston block 93 slides downward under the action of the telescopic rod 91, the sample is pushed downward. At this time, the drill bit tube 7 gradually rises with the mounting box 8, so that the sample is gradually exposed on the placement slide block 3, so that the sample placement is more stable.

On the basis of the above technical solution, the top and bottom sides of the mounting frame 60 are respectively provided with an air inlet slot 65 and an air outlet slot 66, a connecting air duct 67 is installed in the middle of the mounting frame 60 for connecting the air inlet slot 65 and the air outlet slot 66, and a fan 68 is installed inside the connecting air duct 67, the air inlet slot 65 and the air outlet slot 66 are both located above the base 2, wherein the air inlet slot 65 is arranged above the active path of the placement slider 3, that is, above the active slot 22, and the fan 68 blows toward one side of the air outlet slot 66, and when the placement slider 3 passes through the air outlet slot 66, the placement slider 3 can be improved. The air flow speed is increased, which is conducive to the air drying of the sample surface on the slider 3; and further, a dust filter plate is installed inside the air inlet slot 65, and the air inlet slot 65 has a negative pressure dust absorption effect. By setting the dust filter plate, dust can be filtered to reduce the impact of dust; and a heating rod can be installed inside the air outlet slot 66; the air outlet slot 66 blows out hot air, and the higher the temperature, the faster the water evaporates, which can increase the drying speed of the sample surface on the slider 3, and dry the water on the inclined guide slope 25, thereby improving the use effect and efficiency of the equipment;

In order to realize the rotation of the drill bit tube 7 to drill into the road surface, the transmission assembly includes a rotating motor 82 installed on the inner side of the installation box 8, and a driving gear 83 installed on the rotating shaft of the rotating motor 82. A driven gear 84 is sleeved on the inner side of the drill bit tube 7. The driving gear 83 is meshed with the driven gear 84 for transmission. The rotating motor 82 drives the driving gear 83 to mesh with the driven gear 84. The driven gear 84 drives the drill bit tube 7 to rotate in the installation box 8, and cooperates with the lifting and lowering of the installation box 8 and the water discharge and air pressure of the piston assembly 9, which greatly improves the use effect of the drill bit tube 7.

The present invention also includes a specific method for using the road surface compaction quality detection equipment: the road surface is drilled by the core sampling device 6 in the sampling construction area b, and the sample is placed in the placement slide 3, and the sample is transported by the placement slide 3 to the jack 4 in the pressure test area a for direct pressure detection. Specifically, when the core sampling device 6 is used, the driving gear 83 is driven by the rotating motor 82 to engage the driven gear 84, and the driven gear 84 drives the drill pipe 7 to rotate in the installation box 8, and the drill pipe 7 rotates at a high speed. At this time, the lifting motor 64 drives the screw 62, so that the screw 62 thread transmission embedded in the protrusion 81 moves downward, and as the installation box 8 descends on the installation frame plate 60, the drill pipe 7 gradually drills into the road surface, and the road surface sample will be drilled during drilling. The drill bit tube 7 is stuck in the drill bit tube 7. During the continuous downward drilling process, the cooling water can be transported to the fixed water pipe 97 through the water pump in the water tank 98. The fixed water pipe 97 transports the water to the corresponding electric control valve 94 through the rubber hose 95. At this time, the electric control valve 94 of the water circuit is opened, so that the cooling water enters the drill bit tube 7, and the drill bit tube 7 is cooled and the dust is settled while drilling the road surface. After the drilling is completed, the installation box 8 moves upward. Since there is a closed cavity between the piston block 93 in the drill bit tube 7 and the sample, the water circuit electric control valve 94 is closed at this time, and the air circuit electric control valve 94 is opened. The air pump 99 is used to evacuate air, and the fixed air pipe 96 and the correspondingly connected rubber hose 95 and the electric control valve 94 are acted on in turn, so that the piston block 93 The air hole 932 generates negative pressure, which in turn evacuates the drill tube 7 to generate negative pressure, and cooperates with the telescopic rod 91 to pull the piston block 93 upward to evacuate air, so that a greater negative pressure effect is generated in the drill tube 7, and the sample is more stably adsorbed in the drill tube 7; then, the drill tube 7 moves upward to a certain height as the installation box 8 moves upward, and the placement slide block 3 slides to the bottom of the drill tube 7. At this time, the air pump 99 and the electric control valve 94 of the air circuit are in a closed state, and the telescopic rod 91 pushes the piston block 93 downward, and uses the air pressure to stably push the sample in the drill tube 7 onto the placement slide block 3, and the drill tube 7 slowly rises as the sample is pushed out and completely separates from the sample. At this time, the sample is transported to the jack 4 of the pressure test area a through the placement slide block 3 for direct testing. The pressure test is performed until the sample is broken, and the load and strength data of the pressure applied by the jack 4 are displayed on the display screen of the PLC control system c; during the transportation of the placed slider 3, since the air inlet grooves 65 and the air outlet grooves 66 are opened on both sides of the bottom of the installation box 8, the air flow velocity on the placed slider 3 can be increased, and the air outlet grooves 66 are provided with electric heating rods to blow out hot air, so that the sample transported by the placed slider 3 can be dried, and the placed slider 3 slides stably on the base 2 under the guidance of the movable groove 22 and the sliding guide rod 24, and by opening inclined guide slopes 25 on both sides of the sampling port 23, the residual water in the sample part can be directly guided out of the inclined guide slopes 25 to the outside of the sampling port 23, and can also be dried under the action of hot air.

It should be noted that the pavement compaction quality detection equipment of the present invention mainly improves the above-mentioned structure, and the functions, components and structures not mentioned therein can be implemented by using components and structures in the prior art that can realize the corresponding functions.

The present invention has been described in detail above through specific embodiments, but these do not constitute limitations of the present invention. Without departing from the principle of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims (10)

1. A road surface compaction quality testing device, characterized in that it comprises a body (1), a pressure test area (a) and a sampling construction area (b) adjacently arranged on the left and right sides of the body (1), and a PLC control system (c) arranged on the front side of the body (1) for controlling the electrical components of the entire device; The bottom of the machine body (1) is integrally provided with a base (2), and the base (2) is provided with a placement slider (3) that can slide between the pressure test area (a) and the sampling construction area (b), and is used to transport samples from the sampling construction area (b) to the pressure test area (a) for pressure testing; The pressure test area (a) includes a jack (4) installed on the top of the machine body (1); The sampling construction area (b) is provided with a core sampling device (6), the core sampling device (6) comprising a mounting frame (60), a mounting box (8) which is lifted and arranged in the middle of the mounting frame (60), and a drill pipe (7) which is rotatably mounted on the lower side of the mounting box (8), and a transmission assembly for driving the drill pipe (7) to rotate is provided inside the mounting box (8); A piston assembly (9) is provided on the upper side of the installation box (8), and the piston assembly (9) is capable of piston movement inside the drill bit tube (7); The piston assembly (9) comprises a telescopic rod (91) mounted on the top of the mounting box (8) and a connecting push plate (92) mounted on the telescopic end of the telescopic rod (91) and adapted to the inner diameter of the drill pipe (7); a piston block (93) is fixedly provided at the bottom of the connecting push plate (92), and the piston block (93) can be lifted and lowered by being in close contact with the inner wall of the drill pipe (7); Electric control valves (94) are respectively embedded and installed on both sides of the connecting push plate (92); water holes (931) and air holes (932) are vertically opened on both sides of the piston block (93); and the bottom ends of the two electric control valves (94) are respectively connected to the water holes (931) and the air holes (932); A fixed air pipe (96) and a fixed water pipe (97) are fixedly mounted on the top of the installation box (8); a water tank (98) and an air pump (99) are mounted on the top of the machine body (1); the top of the fixed air pipe (96) is connected to the air pump (99) via an air delivery pipe, and the fixed water pipe (97) is connected to the water pump inside the water tank (98) via a water delivery pipe; The top ends of the two electric control valves (94) are respectively connected to rubber hoses (95), and are respectively connected to a fixed air pipe (96) and a fixed water pipe (97) through the two rubber hoses (95). 2. A road surface compaction quality detection device according to claim 1, characterized in that: a movable groove (22) and a sampling port (23) connected to the road surface are opened on the upper side of the base (2), the movable groove (22) is located below the jack (4) and the drill pipe (7), the sampling port (23) is arranged on the lower side of the movable groove (22) and corresponds to the drill pipe (7) directly below, sliding guide rods (24) are respectively arranged on both sides of the movable groove (22), the bottom sides of the placement slider (3) are slidably connected to the sliding guide rods (24), a linear gear row (26) is fixedly installed on one side of the movable groove (22), a sliding motor (27) is installed on one side of the placement slider (3), a travel gear (28) is installed on the shaft end of the sliding motor (27), and the travel gear (28) is meshed with the linear gear row (26) for transmission. 3. A road surface compaction quality detection device according to claim 2, characterized in that: the movable grooves (22) on both sides of the sampling port (23) are respectively provided with inclined guide slopes (25), and the inclined guide slopes (25) are inclined downward toward one side of the sampling port (23), and the inclined guide slopes (25) are arranged below the placement slider (3). 4. A road surface compaction quality detection device according to claim 1, characterized in that: embedded protrusions (81) are integrally provided on both sides of the installation box (8), and inner lifting grooves (61) are respectively opened on both sides of the inside of the installation frame plate (60), and embedded protrusions (81) are integrally provided on both sides of the installation box (8), and the two embedded protrusions (81) are respectively movably embedded in the inner side of the inner lifting groove (61), and a screw rod (62) and a sliding rod (63) are vertically installed in the inner lifting groove (61), and the screw rod (62) and the sliding rod (63) are respectively penetrated by the embedded protrusions (81), wherein the screw rod (62) is threadedly connected to the embedded protrusions (81), and a lifting motor (64) for driving the screw rod (62) is installed on the top of the installation frame plate (60). 5. A road surface compaction quality detection device according to claim 1 or 4, characterized in that: the top and bottom sides of the mounting frame (60) are respectively provided with an air inlet slot (65) and an air outlet slot (66), a connecting air duct (67) is installed in the middle of the mounting frame (60) for connecting the air inlet slot (65) and the air outlet slot (66), and a fan (68) is installed inside the connecting air duct (67). 6. A road surface compaction quality detection device according to claim 5, characterized in that: the air inlet slot (65) and the air outlet slot (66) are both located above the base (2), wherein the air inlet slot (65) is located above the moving path of the slider (3). 7. A road surface compaction quality detection device according to claim 1, characterized in that a dust filter plate is installed inside the air inlet slot (65), and a heating rod is installed inside the air outlet slot (66). 8. A road surface compaction quality detection device according to claim 1, characterized in that: the transmission assembly comprises a rotating motor (82) installed inside the installation box (8), and a driving gear (83) installed on the rotating shaft of the rotating motor (82), and a driven gear (84) is sleeved on the inner side of the drill tube (7), and the driving gear (83) is meshed with the driven gear (84) for transmission. 9. The road surface compaction quality detection device according to claim 1, characterized in that the front and rear box plates of the installation box (8) are locked by screws. 10. A method for using a road surface compaction quality detection device according to any one of claims 1 to 9, characterized in that: the road surface is drilled by a core sampling device (6) in a sampling construction area (b), and the sample is placed in a placement slide (3), and is transported by the placement slide (3) to a jack (4) in a pressure test area (a) for direct pressure detection. Specifically, when the core sampling device (6) is used, the drill bit tube (7) rotates at a high speed, and as the installation box (8) descends on the installation frame plate (60), the drill bit tube (7) rotates at a high speed, and the sample is placed in a placement slide (3) to a jack (4) in a pressure test area (a) for direct pressure detection. , so that the drill pipe (7) drills the road surface, and the road surface sample is stuck in the drill pipe (7) during drilling. During the continuous downward drilling process, the cooling water can be delivered to the fixed water pipe (97) through the water pump in the water tank (98), and the fixed water pipe (97) delivers the water to the corresponding electric control valve (94) through the rubber hose (95). At this time, the electric control valve (94) of the water circuit is opened, so that the cooling water enters the drill pipe (7), and the drill pipe (7) is cooled and the dust is settled while drilling the road surface; After drilling is completed, the mounting box (8) moves upward. Since there is a sealed cavity between the piston block (93) in the drill tube (7) and the sample, the water circuit electric control valve (94) is closed and the gas circuit electric control valve (94) is opened. The air pump (99) is used to evacuate air, and the fixed air pipe (96) and the correspondingly connected rubber hose (95) and the electric control valve (94) are acted on in sequence, so that the air hole (932) of the piston block (93) generates negative pressure, and then the drill tube (7) is evacuated to generate negative pressure. The piston block (93) is pulled upward to evacuate air in cooperation with the telescopic rod (91), so that a greater negative pressure effect is generated in the drill tube (7), and the sample is more stably adsorbed in the drill tube (7); Next, the drill tube (7) moves upward to a certain height as the installation box (8) moves upward, and the placement slide block (3) slides to the bottom of the drill tube (7). At this time, the air pump (99) and the electric control valve (94) of the air circuit are in a tightly closed state, and the telescopic rod (91) pushes the piston block (93) downward, and uses the air pressure to steadily push the sample in the drill tube (7) onto the placement slide block (3). As the sample is pushed out, the drill tube (7) slowly rises and completely separates from the sample. At this time, the sample is transported to the jack (4) of the pressure test area (a) through the placement slide block (3) for direct pressure testing until the sample is broken, and the load and strength data of the pressure applied by the jack (4) are displayed on the display screen of the PLC control system (c); During the transportation of the placement slider (3), since the air inlet groove (65) and the air outlet groove (66) are provided on both sides of the bottom of the installation box (8), the air flow velocity on the placement slider (3) can be increased, and the air outlet groove (66) is provided with an electric heating rod to blow out hot air, so that the sample transported by the placement slider (3) can be dried. The placement slider (3) slides stably on the base (2) under the guidance of the movable groove (22) and the sliding guide rod (24), and the inclined guide slopes (25) are provided on both sides of the sampling port (23), so that the residual water in the sample part can be directly guided out to the outside of the sampling port (23) through the inclined guide slopes (25), and can also be dried under the action of hot air.