CN209624253U - A kind of pavement material intensity test device - Google Patents

Abstract

The utility model relates to a kind of pavement material intensity test devices, belong to road surface checking device technical field, including pedestal, two vertical plates, crossbeam, briquetting component, semi arch plate is respectively arranged between briquetting component and two vertical plates, and the cross section of two semi arch plates forms an annulus, the bottom end of semi arch plate and pedestal sliding connection, compression assembly and limit assembly are provided between semi arch plate and vertical plate, limit assembly includes the limit plate inconsistent with semi arch plate positive camber, it is provided with the pockets of base top surface, the second compressed spring being installed between pockets and limit plate, the length of limit plate is greater than the diameter of semi arch plate.The pavement material intensity test device, pass through two semi arch plates, the residue splashes for preventing ground surface material from generating when detecting, pass through the mutual cooperation of compression assembly and limit assembly, convenient for clearing up residue, simultaneously because limit plate and semi arch plate are inconsistent, the stability that two semi arch plates use is improved.

Description

A device for testing the strength of pavement materials

technical field

The utility model relates to the technical field of pavement detection devices, in particular to a pavement material strength test device.

Background technique

Pavement material strength testing device is a multifunctional roadbed and pavement material testing instrument, which can test the compressive strength, bending strength, splitting, Marshall stability, etc. of pavement materials.

At present, the patent document with the authorized announcement date of 2015.12.30 and the authorized announcement number CN204924794U discloses a pavement material strength tester, including a base, a gearbox, a column, a beam and a cover. The upper end of the upper end of the beam is equipped with a lower pressure fast, and the upper end of the lower pressure fast is provided with a travel limit. A pressure sensor is provided, and springs are arranged in the lead screw protective cover and the column protective cover. The pavement material strength tester can realize the detection of the pavement material strength, but when the pavement strength is tested, the pavement material is easy to produce cracks under the action of the upper briquetting block, and in severe cases, residues will be generated and splashed around, even to the pavement. The operator causes injury, so there is a safety hazard.

Utility model content

The purpose of this utility model is to provide a pavement material strength testing device. By setting two semi-circular arc plates on the outer peripheral surface of the pressing block assembly, the residue generated during the detection of the pavement material is prevented from splashing around, and the compression assembly and the limit The mutual cooperation of the components facilitates the cleaning of residues, and at the same time, the stability of the use of the two semicircular arc plates is improved due to the conflict between the limiting plate and the outer surface of the semicircular arc plate.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

A device for testing the strength of pavement materials, comprising a cuboid-shaped base, two vertical plates fixed vertically on the top surfaces of both ends of the base along its length direction, and a crossbeam fixed between the two vertical plates and above the base 1. A briquetting block assembly arranged between the beam and the base for testing the pavement material, semicircle arc plates are respectively arranged between the briquetting block assembly and the two vertical plates, and the briquetting block assembly is located in the two semicircles Between the arc plates, the bending direction of the two semicircle arc plates is set towards the pressing block assembly, the axes of the two semicircle arc plates are all set along the height direction, and the transverse direction of the two semicircle arc plates The sections are combined to form a circular ring, the bottom end of the semicircle arc plate is slidably connected to the base, and a compression device for adjusting the distance between the pressing block assembly and the semicircle arc plate is provided between the semicircle arc plate and the vertical plate. Assemblies, a limit assembly for limiting the position of the semicircle arc plate is provided between the semicircle arc plate and the vertical plate, and the limit assembly includes a limit stop that is in conflict with the outer curved surface of the semicircle arc plate and along the width direction of the base plate, an accommodating groove set on the top surface of the base for accommodating the limiting plate, a second compression spring fixed between the bottom surface of the accommodating groove and the bottom end of the limiting plate, and the length of the limiting plate is greater than a semicircle The diameter of the arc.

By adopting the above technical scheme, when the pressure block assembly tests the pavement material, the two semicircle arc plates collide under the action of the compression assembly. At this time, the limit plate and the semicircle arc plate collide, preventing the two semicircle arc plates from The plate is separated due to the force of the residue, which affects its use effect. When the residue needs to be cleaned, press the limit plate downward so that the limit plate is located in the receiving groove, and pull the semi-circular arc plate away from the pressing block assembly Direction movement, and make the semi-circular arc plate between the vertical plate and the limit plate, at this time, the limit plate and the two ends of the semi-circular arc plate along the circumferential direction conflict to realize the limit of the semi-circular arc plate, and then Clean up the residue. The pavement material strength testing device prevents the residue generated by the pavement material from splashing around by arranging two semi-circular arc plates on the outer peripheral surface of the pressing block assembly, and through the mutual cooperation of the compression assembly and the limit assembly, it is convenient to check the residue Cleaning is carried out, and at the same time, because the limiting plate and the outer curved surface of the semicircle arc plate conflict, the stability of the use of the two semicircle arc plates is improved.

The utility model is further configured as follows: the two semi-circular arc plates do not conflict with the pressing block assembly.

By adopting the above technical solution, the semicircular arc plate is prevented from affecting the test of the pavement material by the pressing block assembly, and the stability and accuracy of the pavement material strength detection device are improved.

The utility model is further configured as follows: the bottom end of the limiting plate is fixed with a first limiting rod, and the inner surface of the top of the receiving groove is fixed with a second limiting rod matching the first limiting rod.

By adopting the above technical solution, the mutual cooperation of the first limit rod and the second limit rod prevents the limit plate from detaching from the receiving groove, and improves the stability of the limit assembly.

The utility model is further configured as follows: the number of the compression assemblies is set to two, and the two compression assemblies are arranged at intervals along the width direction of the base.

By adopting the above technical solution, the stability of the movement of the semicircular arc plate is improved.

The utility model is further configured as follows: the compression assembly includes a hollow fixed sleeve with one end open, a sliding rod sleeved in the fixed sleeve and slidingly connected with it, and the inner bottom surface of the fixed sleeve is fixed on the vertical plate One end of the sliding rod is located inside the fixed sleeve, and the other end is located outside the fixed sleeve. A first compression spring is fixed between the end of the sliding rod inside the fixed sleeve and the inner bottom surface of the fixed sleeve. The other end is fixed on the semicircular arc plate.

By adopting the above technical scheme, the compression spring applies force to the sliding rod, and the sliding rod applies force to the semi-circular arc plate, and makes the two semi-circular arc plates conflict, when the distance between the pressing block assembly and the semi-circular arc plate needs to be adjusted , to drive the semi-circular arc plate to move away from the pressing block assembly, so as to realize the adjustment of the distance between the pressing block assembly and the semi-circular arc plate.

The utility model is further configured as follows: the pressing block assembly includes a support rod fixed on the top surface of the base and along the height direction, a lower pressing block fixed on the top of the supporting rod and coincident with its axis, The overlapping upper pressing block, the hydraulic cylinder fixed between the upper pressing block and the beam and used to drive the upper pressing block to move along the height direction, the lower pressing block and the upper pressing block are evenly arranged in the horizontal direction, and the lower pressing block Both the upper pressing block and the upper pressing block are set as circular plates.

By adopting the above technical solution, when detecting the pavement material, the pavement material is placed on the lower pressing block, and the hydraulic cylinder is activated, which drives the lower pressing block to move downward along the height direction, and realizes the detection of the pavement material.

The utility model is further configured as follows: the lower pressing block and the upper pressing block are both set as circular stainless steel plates.

By adopting the above technical scheme, the service life of the lower pressing block and the upper pressing block is improved.

The utility model is further configured as: a pressure sensor is fixed on the lower pressing block, and a displacement sensor is fixed on the upper pressing block.

By adopting the above technical solution, it is convenient to locate the position where the upper pressing block moves along the height direction, and at the same time, it is convenient to detect the pressure of the lower pressing block.

The utility model is further configured as follows: the pressing block assembly is respectively provided with conflicting plates on both sides where the two semi-circular arc plates collide, the conflicting plates are fixed on the base, and the two semi-circular arc plates are Both ends in the circumferential direction are respectively provided with relief grooves matching with the collision plate.

By adopting the above technical scheme, when the two semi-circular arc plates are in use, the two semi-circular arc plates collide with each other, the conflicting plate is located in the gap formed by the two semi-circular arc plates, and the limiting plate and the semi-circular arc plate are in contact with each other. conflict. The collision plate locates the position of the semi-circular arc plate, prevents the semi-circular arc plate from colliding with the pressing block assembly and affects the detection of pavement materials, and improves the stability and accuracy of the pavement material strength detection device.

The utility model is further configured as follows: the height of the collision plate is lower than that of the semicircular arc plate.

By adopting the above technical proposal, the amount of the conflicting plate is reduced, and the blocking of the residue by the conflicting plate is reduced, so that the cleaning of the residue is more convenient and cleaner.

In summary, the utility model has the following beneficial effects:

1. The pavement material strength testing device of the present invention, by setting two semi-circular arc plates on the outer peripheral surface of the pressing block assembly, prevents the residue generated during the detection of the pavement material from splashing around, and through the interaction between the compression assembly and the limit assembly The combination facilitates cleaning of residues, and at the same time, the stability of the use of the two semicircular arc plates is improved due to the conflict between the limiting plate and the outer curved surface of the semicircular arc plates.

2. The semi-circular arc plate does not conflict with the briquetting block assembly, preventing the semi-circular arc plate from affecting the test of the pavement material by the briquetting assembly, and improving the stability and accuracy of the pavement material strength testing device.

3. The number of compression components is set to two, which improves the stability of the movement of the semi-circular arc plate. At the same time, the processing and use of the compression components are more convenient through the mutual cooperation of the fixing sleeve, the sliding rod and the first compression spring.

4. The use of the semi-circular arc plate is more convenient and more stable by setting a conflicting block on one side of the lower pressing block.

Description of drawings

Fig. 1 is the structural representation of embodiment;

Fig. 2 is in order to represent the partial sectional view of pressing block in the embodiment;

Fig. 3 is a partial cross-sectional view in order to show the compression assembly and the limit assembly in the embodiment;

Fig. 4 is a partial cross-sectional view in order to show the limiting assembly in the embodiment;

Fig. 5 is an enlarged view of part A in Fig. 4;

Fig. 6 is a schematic structural view of the semi-circular arc plate in the embodiment when it is being cleaned.

In the figure, 1. base; 11. vertical plate; 12. beam; 13. accommodating groove; 14. second limit rod; 2. pressing block assembly; 21. lower pressing block; 211. pressure sensor; 22. support Rod; 23, upper pressing block; 231, displacement sensor; 24, hydraulic cylinder; 3, semicircular arc plate; 4, compression assembly; 41, fixed sleeve; 411, limit projection; 42, sliding rod; 421, Limiting protrusion; 423, first compression spring; 5, limiting assembly; 51, limiting plate; 511, first limiting rod; 52, second compression spring; 6, interference plate.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

A pavement material strength testing device, as shown in Figure 1, includes a base 1, the base 1 is arranged in a cuboid shape, and the top surfaces of the base 1 along the two ends of the length direction are respectively vertically fixed with vertical boards 11, that is, the number of vertical boards 11 for two. The vertical plate 11 is arranged along the height direction, and the vertical plate 11 is arranged as a rectangular plate. A crossbeam 12 along the horizontal direction is fixed between the top ends of the two vertical plates 11 , and the crossbeam 12 is arranged along the length direction of the base 1 . A pressing block assembly 2 is arranged between the beam 12 and the base 1 .

As shown in FIG. 1 and FIG. 2 , the pressing block assembly 2 includes a lower pressing block 21 arranged above the base 1 , the lower pressing block 21 is a circular stainless steel plate, and the lower pressing block 21 is arranged along the horizontal direction. A support rod 22 is arranged between the lower pressing block 21 and the base 1, and the supporting rod 22 is arranged along the height direction. The axis of the supporting rod 22 coincides with the axis of the lower pressing block 21. The bottom end of 22 is fixedly connected with the base 1, and the top end of the support rod 22 is fixedly connected with the lower pressing block 21. A pressure sensor 211 is fixed on the lower pressing block 21 . The upper pressing block 21 is provided with an upper pressing block 23, and the upper pressing block 23 is set to a circular stainless steel plate, and the upper pressing block 23 is arranged along the horizontal direction, and the axis of the upper pressing block 23 coincides with the axis of the lower pressing block 21. A hydraulic cylinder 24 is fixed between the upper pressing block 23 and the cross beam 12 , the hydraulic rod of the hydraulic cylinder 24 is fixed on the top surface of the upper pressing block 23 , and the end of the hydraulic cylinder 24 away from the hydraulic rod is fixed on the cross beam 12 . A displacement sensor 231 is fixed on the upper pressing block 23 .

When detecting the pavement material, place the pavement material on the lower pressing block 21, start the hydraulic cylinder 24, and the hydraulic cylinder 24 drives the lower pressing block 21 to move downward along the height direction, and realize the detection of the pavement material.

As shown in Fig. 1 and Fig. 2, a semicircle arc plate 3 is respectively arranged between the lower pressing block 21 and the two vertical plates 11, that is, the number of the semicircle arc plate 3 is two, and the two semicircle arc plates 3 There is a one-to-one correspondence with the two vertical plates 11. The axis of the semi-circular arc plate 3 coincides with the axis of the lower pressing block 21, and the cross section of the semi-circular arc plate 3 is set in a semi-circular shape. The inner wall of the board 3 is fixed with a wear-resistant transparent film. The cross-sections of the two semi-arc plates 3 are combined to form a ring, the lower pressing block 21 is located between the two semi-arc plates 3 , and the lower pressing block 21 and the semi-arc plates 3 do not conflict.

As shown in Figures 1 and 2, in order to facilitate the cleaning of pavement material residues, between the semicircular arc plate 3 and the vertical plate 11, there are two spacers for adjusting the distance between the lower pressing block 21 and the semicircular arc plate 3. Two compression assemblies 4 are arranged at intervals along the width direction of the base 1, that is, the total number of compression assemblies 4 in this embodiment is four. A limiting assembly 5 for limiting the position of the semicircular arc plate 3 is arranged between the semicircular arc plate 3 and the vertical plate 11, that is, the total number of limiting assemblies 5 in this embodiment is two.

As shown in Fig. 3 and Fig. 4, the compression assembly 4 includes a fixed sleeve 41 arranged along the length direction of the base 1, the fixed sleeve 41 is arranged in the shape of a hollow cylinder with one end open, and the outer bottom surface of the fixed sleeve 41 is fixed on On the side of vertical plate 11. As shown in FIG. 5 , the fixed sleeve 41 is sleeved with a sliding rod 42 slidably connected thereto. One end of the sliding rod 42 is located inside the fixed sleeve 41 and the other end is located outside the fixed sleeve 41 . A limiting protrusion 421 is fixed on the outer peripheral surface of one end of the sliding rod 42 located in the fixing sleeve 41 , and a limiting protrusion 411 matching the limiting protrusion 421 is fixed on the inner side wall of the opening end of the fixing sleeve 41 . A first compression spring 423 is fixed between one end of the sliding rod 42 inside the fixing sleeve 41 and the inner bottom surface of the fixing sleeve 41 . One end of the sliding rod 42 outside the fixing sleeve 41 is fixedly connected to the outer curved surface of the semicircular arc plate 3 .

As shown in Figures 3 and 4, the limiting assembly 5 includes a limiting plate 51 that is arranged between the vertical plate 11 and the semicircular arc plate 3 and that conflicts with the outer curved surface of the semicircular arc plate 3, and the limiting plate 51 is along the base 1 is arranged in the width direction, and the length of the limiting plate 51 is greater than the diameter of the semicircular arc plate 3, and the top surface of the base 1 is provided with a receiving groove 13 for accommodating the limiting plate 51. A first limiting rod 511 is fixed on the outer peripheral surface of the bottom end of the limiting plate 51 , and a second limiting rod 14 matching the first limiting rod 511 is fixed on the inner wall of the top of the receiving groove 13 . Two second compression springs 52 are fixed on the bottom of the limiting plate 51 and the bottom surface of the receiving groove 13 , and the two second compression springs 52 are arranged at intervals along the length direction of the limiting plate 51 .

As shown in Figure 1, in order to make the use of the semicircular arc plate 3 more convenient, the lower pressing block 21 is respectively provided with a conflicting plate 6 on both sides where the two semicircular arc plates 3 are in conflict, that is, the number of the conflicting plates 6 is two indivual. The height of the collision plate 6 is lower than that of the semicircle-arc plate 3, and the collision plate 6 is fixed on the top surface of the base 1, and the two ends of the two semi-circle-arc plates 3 along the circumferential direction are respectively provided with a collision plate. 6, the collision plate 6 is located in the gap formed by the two semicircular arc plates 3.

As shown in Figure 1, when the pressure block assembly 2 is testing the pavement material, the two semicircular arc plates 3 collide under the action of the first compression spring 423, and the conflicting plate 6 is located at the space formed by the two semicircular arc plates 3. In the gap, the limit plate 51 and the semicircular arc plate 3 are in conflict at this time, preventing the two semicircular arc plates 3 from being separated due to the action force of the residue, which affects its use effect. As shown in FIG. 6 , when the residue needs to be cleaned up, press the limiting plate 51 downward, and make the limiting plate 51 be located in the receiving groove 13, and pull the semicircular arc plate 3 to move away from the lower pressing block 21. And the half-arc plate 3 is separated from the limit plate 51, and now the half-arc plate 3 is positioned between the vertical plate 11 and the limit plate 51, and the limit plate 51 moves upward under the action of the second compression spring 52, And conflict with the two ends of the semicircular arc plate 3 along its circumferential direction, realize the spacing to the semicircular arc plate 3, and then the residue is cleaned up; after cleaning, press the limiting plate 51 downwards, and make The limiting plate 51 is located in the receiving groove 13 , the semicircular arc plate 3 collides with the abutting plate 6 under the action of the first compression spring 423 , and at this time the two semicircular arc plates 3 collide. In this pavement material strength testing device, two semi-circular arc plates 3 are arranged on the outer peripheral surface of the pressing block assembly 2 to prevent the residue generated by the pavement material from splashing around when testing, and through the mutual cooperation of the compression assembly 4 and the limit assembly 5 , it is convenient to clean up the residue, and at the same time, because the limiting plate 51 and the outer curved surface of the semicircular arc plate 3 conflict, the stability of the use of the two semicircular arc plates 3 is improved.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. After reading this description, those skilled in the art can make modifications to the embodiment without creative contribution according to needs, but as long as it is within the utility model All new claims are protected by patent law.

Claims (10)

1. a kind of pavement material intensity test device, including in cuboid-type setting pedestal (1), two be vertically installed in pedestal (1) vertical plate (11) of both ends top surface, the cross for being installed between two vertical plates (11) and being located above pedestal (1) along its length The briquetting component (2) tested for road pavement material, feature is arranged between crossbeam (12) and pedestal (1) in beam (12) It is: is respectively arranged with semi arch plate (3) between the briquetting component (2) and two vertical plates (11), briquetting component (2) position Between two semi arch plates (3), the bending direction of two semi arch plates (3) is arranged towards briquetting component (2), and two The axis of the semi arch plate (3) is arranged along short transverse, and the cross section of two semi arch plates (3) combines to form one A annulus, the bottom end of the semi arch plate (3) and pedestal (1) sliding connection, set between the semi arch plate (3) and vertical plate (11) It is equipped with the compression assembly (4) for adjusting distance between briquetting component (2) and semi arch plate (3), the semi arch plate (3) and vertical The limit assembly (5) for limiting semi arch plate (3) position is provided between plate (11), the limit assembly (5) includes and half Arc plate (3) positive camber it is inconsistent and along the limit plate (51) of pedestal (1) width direction, be provided with pedestal (1) top surface and be used for Accommodate the pockets (13) of limit plate (51), second be installed between pockets (13) bottom surface and limit plate (51) bottom end Compressed spring (52), the length of the limit plate (51) are greater than the diameter of semi arch plate (3).

2. a kind of pavement material intensity test device according to claim 1, it is characterised in that: two semi arch plates (3) discord briquetting component (2) is inconsistent.

3. a kind of pavement material intensity test device according to claim 1, it is characterised in that: limit plate (51) bottom End is installed with the first gag lever post (511), and pockets (13) the top inner side face is installed with and the first gag lever post (511) Xiang Shi The second gag lever post (14) matched.

4. a kind of pavement material intensity test device according to claim 1, it is characterised in that: the compression assembly (4) Quantity be set as two, two compression assemblies (4) are arranged along pedestal (1) width direction interval.

5. a kind of pavement material intensity test device according to claim 1, it is characterised in that: the compression assembly (4) Including fixes sleeve (41) open at one end and hollow, the sliding bar for being set in fixes sleeve (41) and sliding connection with it (42), the inner bottom surface of the fixes sleeve (41) is installed on vertical plate (11), and one end of the sliding bar (42) is located at fixing sleeve Cylinder (41) in, the other end be located at fixes sleeve (41) outside, the sliding bar (42) in be located at fixes sleeve (41) in one end with The first compressed spring (423) is installed between fixes sleeve (41) inner bottom surface, the other end is installed on semi arch plate (3).

6. a kind of pavement material intensity test device according to claim 1, it is characterised in that: the briquetting component (2) Including be installed in pedestal (1) top surface and along the support rod of short transverse (22), be installed in support rod (22) top and with its axis The lower lock block (21) of coincidence, is installed in upper holder block at the upper holder block (23) for being arranged above lower lock block (21) and being overlapped with its axis (23) hydraulic cylinder (24) between crossbeam (12) and for driving upper holder block (23) to move along short transverse, the lower lock block (21), upper holder block (23) even level direction is arranged, and the lower lock block (21), upper holder block (23) are disposed as circular slab.

7. a kind of pavement material intensity test device according to claim 6, it is characterised in that: the lower lock block (21), Upper holder block (23) is disposed as round stainless steel plate.

8. a kind of pavement material intensity test device according to claim 7, it is characterised in that: on the lower lock block (21) It is installed with pressure sensor (211), is installed with displacement sensor (231) on the upper holder block (23).

9. a kind of pavement material intensity test device according to claim 1, it is characterised in that: the briquetting component (2) It is respectively arranged in two inconsistent two sides of semi arch plate (3) and contradicts plate (6), the conflict plate (6) is installed in pedestal (1) On, two semi arch plates (3) offer respectively along the both ends of its circumferential direction and contradict plate (6) compatible recessing groove.

10. a kind of pavement material intensity test device according to claim 9, it is characterised in that: conflict plate (6) Height is lower than the height of semi arch plate (3).