CN219224376U

CN219224376U - Testing device for strength of ice and snow pavement

Info

Publication number: CN219224376U
Application number: CN202320298963.9U
Authority: CN
Inventors: 文信雲; 吴庚洋; 雍禾; 廖骏驰
Original assignee: China University of Geosciences Beijing
Current assignee: China University of Geosciences Beijing
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-06-20
Anticipated expiration: 2033-02-23

Abstract

The utility model provides a testing device for the strength of ice and snow pavement, which comprises a shell, wherein a first mounting platform and a second mounting platform are respectively and integrally formed on the inner wall of the shell, an electric winch and a microcomputer are respectively mounted on the upper surface of the first mounting platform, and a fixed pulley is mounted on the top wall of the inner side of the shell. The utility model accelerates the impact hammer and the rebound hammer by utilizing an electromagnetic acceleration principle, obtains the pavement strength by measuring and calculating the ratio of the impact speed to the rebound speed of the rebound hammer after contacting an ice and snow pavement, realizes full automation and recovers data by the microcomputer in the whole process, recovers the connecting rod, the impact hammer and the rebound hammer by the electric winch and the high-strength traction wire, adopts a full-automatic measuring means to liberate manpower when the semiautomatic operation is inconvenient aiming at extremely climatic and extremely frozen soil areas, and utilizes an energy attenuation curve to carry out strength test, thus being more novel than the traditional pressure probe test method.

Description

Testing device for strength of ice and snow pavement

Technical Field

The utility model relates to the technical field of pavement strength testing, in particular to a testing device for strength of ice and snow pavement.

Background

In order to ensure that the aircraft can reach the sliding speed of 300km/h on the aircraft on the polar ice-snow road surface, the runway has strict requirements on the hardness of the snow road, and the compressive strength and the impact resistance of the runway need to reach certain values so as to keep the state of the runway stable, but the hardness, the bearing capacity and the impact resistance of the runway are excellent and inferior, so that the runway can be known only by visual inspection or manual experience at present, or a concrete rebound instrument is adopted as a flat test instrument for detection, the real and reliable result is difficult to obtain, and the scientificity and the practicability of important parameters such as the strength, the hardness and the like are seriously influenced;

usually, a concrete resiliometer is used for research and reference instead of flat, but the applicable material of the concrete resiliometer is a concrete body, the material difference between the concrete resiliometer and an actual ice and snow road surface is extremely large, the concrete resiliometer cannot play a role in the ice and snow road surface, and the concrete resiliometer is a semiautomatic device, and needs to carry out manual debugging operation steps, so that convenience is poor in scientific research or actual ice and snow road surface test.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a testing device for the strength of icy and snowy roads, which solves or alleviates the technical problems of the prior art, and at least provides a beneficial choice.

The technical scheme of the embodiment of the utility model is realized as follows: the utility model provides a testing arrangement for ice and snow road surface intensity, includes the shell, the inner wall of shell integrated into one piece has first mounting platform and second mounting platform respectively, electric capstan and microcomputer are installed respectively to the upper surface of first mounting platform, the fixed pulley is installed to the inboard roof of shell, high strength pull wire is installed to electric capstan's wire winding roller, high strength pull wire's outer wall laminating in the inner wall of fixed pulley, the connecting rod is installed to high strength pull wire's one end, the upper surface of second mounting platform runs through there is the body, electromagnetic induction coil is installed to the outer wall of body, the inside of body is equipped with the connecting rod, the impact hammer is installed to the bottom of connecting rod, the outer wall laminating of connecting rod has the rebound hammer, the photoelectric door is installed to the inner wall of body, the electro-magnet is installed to the top outer wall of body.

Further preferably, a lithium battery is mounted on the upper surface of the second mounting platform.

Further preferably, a capacitor is mounted on the upper surface of the second mounting platform.

Further preferably, the front surface of the housing is embedded with a digital display screen.

Further preferably, a through hole is formed in the upper surface of the first mounting platform, and the outer portion of the connecting rod is arranged in the through hole.

Further preferably, the mounting frame is mounted on the outer wall of the shell, and four brackets are symmetrically mounted on the outer wall of the mounting frame.

By adopting the technical scheme, the embodiment of the utility model has the following advantages:

the utility model accelerates the impact hammer and the rebound hammer by utilizing an electromagnetic acceleration principle, obtains the pavement strength by measuring and calculating the ratio of the impact speed to the rebound speed of the rebound hammer after contacting an ice and snow pavement, realizes full automation and recovers data by the microcomputer in the whole process, recovers the connecting rod, the impact hammer and the rebound hammer by the electric winch and the high-strength traction wire, adopts a full-automatic measuring means to liberate manpower when the semiautomatic operation is inconvenient aiming at extremely climatic and extremely frozen soil areas, and utilizes an energy attenuation curve to carry out strength test, thus being more novel than the traditional pressure probe test method.

The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present utility model will become apparent by reference to the drawings and the following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of the present utility model;

fig. 2 is a view showing a construction of an internal impact hammer according to the present utility model;

FIG. 3 is an enlarged block diagram of area A of FIG. 2 in accordance with the present utility model;

FIG. 4 is an enlarged block diagram of the area B of FIG. 2 according to the present utility model;

fig. 5 is a view showing the construction of the internal impact hammer and rebound hammer of the present utility model;

FIG. 6 is an enlarged block diagram of the area C of FIG. 5 according to the present utility model;

FIG. 7 is an enlarged block diagram of the area D of FIG. 5 according to the present utility model;

FIG. 8 is an internal reset block diagram of the present utility model;

FIG. 9 is an enlarged block diagram of the area E of FIG. 8 in accordance with the present utility model;

FIG. 10 is a block diagram of the rebound hammer movement of the present utility model;

fig. 11 is an enlarged block diagram of the area F of fig. 10 according to the present utility model.

Reference numerals: 1. a housing; 2. a tube body; 3. a digital display screen; 4. a mounting frame; 5. a bracket; 6. a percussion hammer; 7. a first mounting platform; 8. an electric winch; 9. a fixed pulley; 10. a high strength pull wire; 11. a microcomputer; 12. a connecting rod; 13. an electromagnetic conductive coil; 14. a second mounting platform; 15. a lithium battery; 16. a capacitor; 17. a through hole; 18. a photoelectric gate; 19. a rebound hammer; 20. an electromagnet.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1-11, the embodiment of the utility model provides a testing device for the strength of an icy and snowy road surface, which comprises a housing 1, wherein a first installation platform 7 and a second installation platform 14 are respectively and integrally formed on the inner wall of the housing 1, an electric winch 8 and a microcomputer 11 are respectively installed on the upper surface of the first installation platform 7, a fixed pulley 9 is installed on the top wall of the inner side of the housing 1, a high-strength traction wire 10 is installed on a winding roller of the electric winch 8, the outer wall of the high-strength traction wire 10 is attached to the inner wall of the fixed pulley 9, a connecting rod 12 is installed at one end of the high-strength traction wire 10, a pipe body 2 penetrates through the upper surface of the second installation platform 14, an electromagnetic guide coil 13 is installed on the outer wall of the pipe body 2, a connecting rod 12 is arranged in the pipe body 2, a collision hammer 6 is installed at the bottom end of the connecting rod 12, a rebound hammer 19 is attached to the outer wall of the connecting rod 12, a photoelectric door 18 is installed on the inner wall of the pipe body 2, and an electromagnet 20 is installed on the top outer wall of the pipe body 2.

In one embodiment, the upper surface of the second mounting platform 14 is provided with a lithium battery 15 for charging the capacitor 16 by the arrangement of the lithium battery 15.

In one embodiment, the upper surface of the second mounting platform 14 is provided with a capacitor 16 for electrically magnetizing the electromagnetic coil 13 by the arrangement of the capacitor 16.

In one embodiment, the front surface of the shell 1 is embedded with the digital display screen 3, and through the arrangement of the digital display screen 3, the data can be conveniently checked by personnel, and the personnel can conveniently operate.

In one embodiment, the upper surface of the first mounting platform 7 is provided with a through hole 17, the outside of the connecting rod 12 is arranged in the through hole 17, and the connecting rod 12 is convenient to move through the arrangement of the through hole 17.

In one embodiment, the outer wall of the housing 1 is provided with a mounting frame 4, and the outer wall of the mounting frame 4 is provided with four brackets 5 symmetrically to each other, and the arrangement of the mounting frame 4 and the brackets 5 is used for stabilizing the use position of the housing 1.

In one embodiment, the digital display 3, the electric winch 8, the microcomputer 11, the lithium battery 15, the capacitor 16, the photoelectric gate 18 and the electromagnet 20 are electrically connected through wires.

The utility model works when in work: through the mounting frame 4 and the bracket 5, the utility model is conveniently placed on a flat road surface to be tested, the cloud or manual operation is used for starting the power supply of the digital display 3 and the lithium battery 15, when the lithium battery 15 charges the capacitor 16, the speed-measuring photoelectric door 18 is opened, the power supply of the lithium battery 15 is disconnected after the capacitor 16 is full of electricity, personnel operate the electric winch 8 through the cloud, the electric winch 8 drives the rebound hammer 19 and the impact hammer 6 to lift to the top position together through the high-strength traction wire 10, the electromagnet 20 is started for adsorbing the rebound hammer 19, the rebound hammer 19 is prevented from falling, at the moment, the electric winch 8 is convenient for rapidly releasing the high-strength traction wire 10, the high-strength traction wire 10 performs angle change on the fixed pulley 9, the high-strength traction wire 10 drives the connecting rod 12 and the impact hammer 6 to release, the impact hammer 6 is not accelerated to be placed on the ground, the capacitor 16 discharges the electromagnetic conductive coil 13, the electromagnet 20 is closed after the electromagnetic conductive coil 13 is electrified and magnetized, so that the rebound hammer 19 is released, the rebound hammer 19 is accelerated by the electromagnetic conductive coil 13, electromagnetic ejection is completed in the pipe body 2, the rebound hammer 19 passes through the photoelectric gate 18 for the first time, the rebound hammer 19 is pushed to rebound by the reaction force of the impact hammer 6 at the moment, the rebound hammer 19 passes through the photoelectric gate 18 in the pipe body 2 for the second time, the photoelectric gate 18 measures the speed of the rebound hammer 19 passing through the photoelectric gate 18 for the first time and the speed of the second time, signals are transmitted into the microcomputer 11, the microcomputer 11 receives data, the two speeds of the rebound hammer 19 are subjected to data processing by taking the energy attenuation and strength relation curve as a test principle, the surface strength to be tested is finally obtained, the microcomputer 11 controls the electric winch 8 to rotate, the impact hammer 6, the high-strength traction wire 10 is recovered, the whole process of the connecting rod 12 and the rebound hammer 19 is full-automatic operation.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that various changes and substitutions are possible within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a testing arrangement for ice and snow road surface intensity, includes shell (1), its characterized in that: the utility model discloses a high-strength electric wire winding machine, including shell (1), wire winding roller, connecting rod (12) are installed to the inner wall of shell (1), first mounting platform (7) and second mounting platform (14) are integrated into one piece respectively, electric capstan (8) and microcomputer (11) are installed respectively to the upper surface of first mounting platform (7), fixed pulley (9) are installed to the inboard roof of shell (1), high-strength haulage wire (10) are installed to the wire winding roller of electric capstan (8), the outer wall laminating of high-strength haulage wire (10) in the inner wall of fixed pulley (9), connecting rod (12) are installed to the one end of high-strength haulage wire (10), electromagnetic induction coil (13) are installed to the upper surface of second mounting platform (14) run through to the outer wall of body (2), the inside of body (2) is equipped with connecting rod (12), impact hammer (6) are installed to the bottom of connecting rod (12), the outer wall laminating of connecting rod (12) has rebound hammer (19), photoelectric door (18) are installed to the inner wall of body (2), electro-magnet (20) are installed at the top of body (2).

2. The test device for the strength of icy and snowy road surface according to claim 1, wherein: and a lithium battery (15) is arranged on the upper surface of the second mounting platform (14).

3. The test device for the strength of icy and snowy road surface according to claim 1, wherein: the upper surface of the second mounting platform (14) is provided with a capacitor (16).

4. The test device for the strength of icy and snowy road surface according to claim 1, wherein: the front surface of the shell (1) is embedded with a digital display screen (3).

5. The test device for the strength of icy and snowy road surface according to claim 1, wherein: through holes (17) are formed in the upper surface of the first mounting platform (7), and the outer parts of the connecting rods (12) are arranged in the through holes (17).

6. The test device for the strength of icy and snowy road surface according to claim 1, wherein: the outer wall of the shell (1) is provided with a mounting frame (4), and the outer wall of the mounting frame (4) is provided with four brackets (5) which are symmetrical to each other.