CN212844731U

CN212844731U - Pavement material strength tester

Info

Publication number: CN212844731U
Application number: CN202021485247.4U
Authority: CN
Inventors: 连淑芳
Original assignee: Shanxi Jilan Engineering Testing Co ltd
Current assignee: Shanxi Jilan Engineering Testing Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-30
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a pavement material strength test appearance, including mounting bracket, base and friction plate, logical groove has been seted up to the lower extreme of the inside intermediate position department of base, from the equal vertical fixedly connected with lead screw in top of driving wheel, and the surface thread connection of lead screw has the rod cover, the top fixedly connected with protection slot of rod cover, the intermediate position department fixedly connected with bearing block on base top, the intermediate position department fixedly connected with pneumatic telescopic link on mounting bracket top, and pneumatic telescopic link's output runs through mounting bracket top and fixedly connected with mounting groove, and the fixture block bottom extends to the outside and the fixedly connected with test block of mounting groove. The utility model discloses an at the inside protection groove that sets up of base, utilize the protection groove to wrap up the bearing block completely, avoid the road surface material that awaits measuring to sputter everywhere because of the too big broken piece of pressure, and then increase the degree of difficulty of cleaning, harm staff's life health even.

Description

Pavement material strength tester

Technical Field

The utility model relates to a test instrument technical field specifically is a pavement material strength test appearance.

Background

With the development of society, the rapid development of the traffic roads in China has higher and higher requirements on the road surface, so that the strength of the road surface material needs to be detected to ensure that qualified materials are put into production and use, and a tester is needed for the detection of the road surface material, but the existing road surface material strength tester still has many problems or defects:

firstly, the traditional pavement material strength tester is not provided with a clamping structure when in use, and a test article can fall off due to excessive pressure during testing to influence the testing process;

secondly, the traditional pavement material strength tester is not provided with a sputtering prevention structure when in use, so that the material is broken due to overlarge pressure, and the scattered material fragments are easy to cause equipment damage and even harm the life safety of workers;

thirdly, the traditional pavement material strength tester does not have the structure of being convenient for to change during the use, and the test piece is worn and torn more seriously after long-time the use, can influence and detect the accuracy.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pavement material strength test appearance to solve the inconvenient problem of pressing from both sides tightly, can not prevent sputter and inconvenient change that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a pavement material strength tester comprises a mounting frame, a base and a friction plate, wherein a through groove is formed at the lower end of the middle position inside the base, a driving wheel is rotatably connected at the middle position of the bottom inside the base, driven wheels are rotatably connected at the two sides of the bottom inside the base, the surface of the driving wheel is connected with the driven wheels through belts, lead screws are vertically and fixedly connected at the top ends of the driven wheels, rod sleeves are in threaded connection with the surface of the lead screws, a protection groove is fixedly connected at the top ends of the rod sleeves, a bearing block is fixedly connected at the middle position of the top end of the base, fixed plates are fixedly connected around the top ends of the bearing block, threaded rods penetrate through the upper ends of one sides of the fixed plates, a movable plate is fixedly connected at one end of each threaded rod, the mounting frame is vertically and fixedly connected at the top end of the base, the utility model discloses a pneumatic telescopic link, including mounting bracket, clamping groove, mounting groove, clamping groove.

Preferably, tongue, lug, recess, installation pole and installation spring have set gradually in mounting structure's inside, the recess is all seted up in the inside both sides of mounting groove, and the inside one side of recess all transversely runs through there is the installation pole, the inside equal winding of recess on installation pole surface has the installation spring, and the equal fixedly connected with lug of one end of installation pole, the inside both sides upper end of fixture block has all been seted up with lug matched with tongue.

Preferably, the sliding grooves are formed in the periphery of the top end inside the bearing block, the sliding blocks are connected to the inside of the sliding grooves in a sliding mode, and the top ends of the sliding blocks are welded to the bottom end of the movable plate.

Preferably, one side of the movable plate is fixedly connected with a fixed box, one side of the fixed box is fixedly connected with a clamping spring, the fixed box at one end of the clamping spring is connected with a sliding plate in a sliding mode, two ends of one end of the sliding plate penetrate through clamping rods, and one end of each clamping rod is fixedly connected with a friction plate.

Preferably, the two ends of the PLC controller close to one side of the mounting rack are fixedly hinged to mounting rings, anti-skid grains are arranged in the mounting rings, and the mounting rings are fixedly connected through bolts.

Preferably, the top view of the friction plate is arc-shaped, and one side of the friction plate is uniformly and fixedly connected with rubber bulges.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the threaded rods and the friction plates are arranged on the periphery of the top end of the bearing block, the movable plate is enabled to stably move towards the direction of the pavement material to be tested by rotating the threaded rods, the friction plates are enabled to be attached to the surface of the pavement material to be tested, the clamping rods are enabled to move to drive the sliding plate to slide and compress the clamping springs, the friction plates are enabled to be always tightly attached to the surface of the pavement material to be tested under the elastic force action of the clamping springs, the pavement material to be tested is firmly fixed to the top end of the bearing block, accidental sliding during testing is avoided, the pavement material to be tested is prevented from;

(2) the rod sleeve and the lead screw are arranged in the base, the protective groove is formed in the top end of the rod sleeve, the belt is used for driving the driven wheel to rotate by rotating the driving wheel, the lead screw is further rotated, then the rod sleeve is driven to ascend, the protective groove is further driven to extend to the outside of the base, and the bearing block is completely arranged in the protective groove, so that the situation that fragments of a pavement material to be tested are broken due to overlarge pressure in the test process are sputtered all around, the cleaning difficulty is increased, and the broken fragments harm the life health of workers in serious cases is avoided;

(3) the mounting structure is arranged on the two sides inside the mounting groove, the mounting rod is installed through pulling, the lug is moved to be completely separated from the convex groove, the test block is convenient to take out from the inside of the mounting groove and replace, the serious abrasion of the test block is avoided, the test precision is reduced, the product quality is further influenced, the shape of the convex groove and the lug is utilized during installation, the installation stability is improved, the work efficiency of installing and disassembling the test block is convenient to improve, and the difficulty in replacing and maintaining the worker is reduced.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the enlarged structure of the bearing block of the present invention;

fig. 4 is a schematic view of the enlarged structure of the PLC controller in a top view;

fig. 5 is an enlarged schematic view of the mounting structure of the present invention.

In the figure: 1. a pressure sensor; 2. mounting grooves; 3. a mounting structure; 301. a convex groove; 302. a bump; 303. a groove; 304. mounting a rod; 305. installing a spring; 4. a test block; 5. a mounting frame; 6. a protective groove; 7. a base; 8. a rod sleeve; 9. a screw rod; 10. a driven wheel; 11. a driving wheel; 12. a through groove; 13. a bearing block; 14. a movable plate; 15. a PLC controller; 16. a mounting ring; 17. a pneumatic telescopic rod; 18. a fixing plate; 19. a slider; 20. a chute; 21. a fixed box; 22. a clamping spring; 23. a clamping lever; 24. a threaded rod; 25. a sliding plate; 26. a friction plate; 27. a clamping block; 28. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a pavement material strength tester comprises a mounting frame 5, a base 7 and a friction plate 26, wherein a through groove 12 is formed in the lower end of the middle position inside the base 7, a driving wheel 11 is rotatably connected to the middle position of the bottom end inside the base 7, driven wheels 10 are rotatably connected to two sides of the bottom end inside the base 7, the surfaces of the driving wheels 11 are respectively connected with the driven wheels 10 through belts, the top ends of the driven wheels 10 are respectively and vertically and fixedly connected with a lead screw 9, a rod sleeve 8 is in threaded connection with the surface of the lead screw 9, a protection groove 6 is fixedly connected to the top end of the rod sleeve 8, a bearing block 13 is fixedly connected to the middle position of the top end of the base 7, a fixing plate 18 is fixedly connected to the periphery of the top end of the bearing block 13, a threaded rod 24 penetrates through the upper end of one side of;

the periphery of the top end inside the bearing block 13 is provided with sliding grooves 20, the sliding blocks 19 are connected inside the sliding grooves 20 in a sliding mode, and the top ends of the sliding blocks 19 are welded with the bottom end of the movable plate 14;

specifically, as shown in fig. 1, 2 and 3, when the structure is used, firstly, the movable plate 14 is moved smoothly toward the direction of the road surface material to be measured by the sliding of the sliding block 19 in the sliding groove 20, so as to facilitate the clamping operation;

one side of the movable plate 14 is fixedly connected with a fixed box 21, one side inside the fixed box 21 is uniformly and fixedly connected with a clamping spring 22, the inside of the fixed box 21 at one end of the clamping spring 22 is slidably connected with a sliding plate 25, two ends of one end of the sliding plate 25 are respectively penetrated with a clamping rod 23, and one end of the clamping rod 23 is fixedly connected with a friction plate 26;

specifically, as shown in fig. 1, fig. 2 and fig. 3, when the structure is used, firstly, under the elastic force of the clamping spring 22, the friction plate 26 is always tightly attached to the surface of the pavement material to be tested, so that the pavement material to be tested is firmly fixed at the top end of the bearing block 13, and the accidental sliding during the test is avoided;

the top view of the friction plate 26 is arc-shaped, and one side of the friction plate 26 is uniformly and fixedly connected with rubber bulges;

specifically, as shown in fig. 1, fig. 2 and fig. 3, when the structure is used, firstly, the friction force between the friction plate 26 and the surface of the pavement material to be measured is improved by arranging the arc-shaped friction plate 26, and the clamping stability is improved;

the top end of the base 7 is vertically and fixedly connected with a mounting rack 5, a PLC (programmable logic controller) 15 is installed at the upper end of one side of the mounting rack 5, and the model of the PLC 15 can be FX1S-30 MR-D;

the two ends of the PLC 15 close to one side of the mounting rack 5 are fixedly hinged with mounting rings 16, anti-skid grains are arranged inside the mounting rings 16, and the mounting rings 16 are fixedly connected through bolts;

specifically, as shown in fig. 1 and 4, when the structure is used, firstly, the mounting ring 16 fixed by the bolts is used, so that the PLC controller 15 can be conveniently taken down from the mounting frame 5, the PLC controllers 15 with different specifications can be conveniently replaced, and the detection precision is improved;

the middle position of the top end of the mounting frame 5 is fixedly connected with a pneumatic telescopic rod 17, the type of the pneumatic telescopic rod 17 can be HD20180111, the output end of the pneumatic telescopic rod 17 penetrates through the top end of the mounting frame 5 and is fixedly connected with a mounting groove 2, a clamping groove 28 is formed in the middle position of the top end inside the mounting groove 2, and mounting structures 3 are mounted inside the mounting groove 2 on two sides of the clamping groove 28;

a convex groove 301, a convex block 302, a groove 303, an installation rod 304 and an installation spring 305 are sequentially arranged in the installation structure 3, the grooves 303 are arranged on two sides in the installation groove 2, the installation rod 304 transversely penetrates through one side in the groove 303, the installation spring 305 is wound in the groove 303 on the surface of the installation rod 304, the convex block 302 is fixedly connected to one end of the installation rod 304, and the convex grooves 301 matched with the convex block 302 are arranged at the upper ends of two sides in the fixture block 27;

specifically, as shown in fig. 1, 2 and 5, when the structure is used, firstly, the mounting rod 304 is pulled, so that the lug 302 moves to compress the mounting spring 305 to be completely separated from the convex groove 301, the test block 4 is conveniently taken out from the inside of the mounting groove 2 and replaced, and in the mounting process, the shape of the convex groove 301 and the lug 302 is utilized, the mounting stability is improved, and the working efficiency of mounting and dismounting the test block 4 is conveniently improved;

inside being provided with of draw-in groove 28 with draw-in groove 28 matched with fixture block 27, and the fixture block 27 bottom extends to the outside and the fixedly connected with test block 4 of mounting groove 2, pressure sensor 1 is installed to one side of pneumatic telescopic link 17 output, this pressure sensor 1's model can be T210, PLC controller 15's output passes through the wire and is connected with pneumatic telescopic link 17's input electricity, and PLC controller 15's input and pressure sensor 1's output electric connection.

The working principle is as follows: when the device is used, firstly, after the device is installed and fixed, a power supply is connected externally, then a pavement material to be tested is placed at the top end of the bearing block 13, then the threaded rod 24 is rotated, the movable plate 14 is stably moved towards the pavement material to be tested by utilizing the sliding of the sliding block 19 in the sliding groove 20, the friction plate 26 is attached to the surface of the pavement material to be tested, the clamping rod 23 is moved to drive the sliding plate 25 to slide in the fixing box 21 to compress the clamping spring 22, and the friction plate 26 is always attached to the surface of the pavement material to be tested under the elastic force action of the clamping spring 22, so that the pavement material to be tested is firmly fixed at the top end of the bearing block 13, and the accidental sliding;

then, a driving wheel 11 is rotated, a belt is used for driving a driven wheel 10 to rotate, so that a screw rod 9 rotates, the screw rod 9 is matched with a rod sleeve 8, the rod sleeve 8 is lifted, so that a protection groove 6 is driven to extend to the outside of a base 7, a bearing block 13 is completely arranged in the protection groove 6, and fragments of the to-be-tested pavement material are prevented from being sputtered at all positions in the testing process;

then, an external power supply is connected, the pneumatic telescopic rod 17 is started to drive the mounting groove 2 to descend, and further the test block 4 is driven to cling to the top end of the pavement material to be tested, then along with the work of the pneumatic telescopic rod 17, the pressure between the test block 4 and the top end of the pavement material to be tested is gradually increased, a pressure signal is read in real time through the pressure sensor 1, meanwhile, the signal is transmitted to the PLC 15 in real time, and after being analyzed and processed by a single chip microcomputer in the PLC 15, the pressure signal is displayed through a display screen, so that the pressure information can be read in real time, and;

after test piece 4 wearing and tearing are serious, accessible pulling installation pole 304 for lug 302 removes compression installation spring 305 to breaking away from tongue 301 completely, is convenient for take out test piece 4 from mounting groove 2 is inside, and changes, and during the installation, utilizes the shape of tongue 301 and lug 302, improves the installation stability, is convenient for improve the installation and dismantles the work efficiency of test piece 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pavement material strength test appearance, includes mounting bracket (5), base (7) and friction plate (26), its characterized in that: the lower end of the middle position in the base (7) is provided with a through groove (12), the middle position of the bottom in the base (7) is rotatably connected with a driving wheel (11), two sides of the bottom in the base (7) are rotatably connected with driven wheels (10), the surface of the driving wheel (11) is connected with the driven wheels (10) through belts, the top ends of the driven wheels (10) are vertically and fixedly connected with lead screws (9), the surface of each lead screw (9) is in threaded connection with a rod sleeve (8), the top ends of the rod sleeves (8) are fixedly connected with a protection groove (6), the middle position of the top end of the base (7) is fixedly connected with a bearing block (13), the periphery of the top end of the bearing block (13) is fixedly connected with a fixing plate (18), the upper end of one side of the fixing plate (18) is provided with a threaded rod (24) in a penetrating manner, and one end of the threaded, the top end of the base (7) is vertically and fixedly connected with a mounting rack (5), the upper end of one side of the mounting rack (5) is provided with a PLC (programmable logic controller) (15), a pneumatic telescopic rod (17) is fixedly connected at the middle position of the top end of the mounting rack (5), the output end of the pneumatic telescopic rod (17) penetrates through the top end of the mounting rack (5) and is fixedly connected with the mounting groove (2), a clamping groove (28) is arranged in the middle of the top end in the mounting groove (2), and the mounting structures (3) are respectively arranged in the mounting grooves (2) at the two sides of the clamping groove (28), a clamping block (27) matched with the clamping groove (28) is arranged in the clamping groove (28), the bottom end of the clamping block (27) extends to the outside of the mounting groove (2) and is fixedly connected with a testing block (4), and a pressure sensor (1) is installed on one side of the output end of the pneumatic telescopic rod (17).

2. The pavement material strength tester according to claim 1, wherein: mounting structure's (3) inside tongue (301), lug (302), recess (303), installation pole (304) and installation spring (305) have set gradually, recess (303) are all seted up in the inside both sides of mounting groove (2), and the inside one side of recess (303) has all transversely run through installation pole (304), the inside equal winding of recess (303) on installation pole (304) surface has installation spring (305), and the equal fixedly connected with lug (302) of one end of installation pole (304), fixture block (27) inside both sides upper end all seted up with lug (302) matched with tongue (301).

3. The pavement material strength tester according to claim 1, wherein: all seted up spout (20) around the inside top of bearing block (13), and the equal sliding connection in inside of spout (20) has slider (19), the top of slider (19) all with fly leaf (14) bottom welding.

4. The pavement material strength tester according to claim 1, wherein: the portable electronic device is characterized in that a fixed box (21) is fixedly connected to one side of the movable plate (14), a clamping spring (22) is fixedly connected to one side of the inside of the fixed box (21), a sliding plate (25) is slidably connected to the inside of the fixed box (21) at one end of the clamping spring (22), a clamping rod (23) penetrates through two ends of one end of the sliding plate (25), and a friction plate (26) is fixedly connected to one end of the clamping rod (23).

5. The pavement material strength tester according to claim 1, wherein: the two ends of the PLC (15) close to one side of the mounting frame (5) are fixedly hinged with mounting rings (16), anti-skidding lines are arranged in the mounting rings (16), and the mounting rings (16) are fixedly connected through bolts.

6. The pavement material strength tester according to claim 4, wherein: the top view of the friction plate (26) is arc-shaped, and rubber bulges are uniformly and fixedly connected to one side of the friction plate (26).