Pavement wear resistance testing device

Abstract

The utility model discloses a pavement wear resistance testing device which comprises a cart, a wear resistance testing unit is mounted in the middle of the cart, and a pavement cleaning device is fixedly mounted at the advancing end of the cart. By installing the road surface cleaning device, when the cart advances on a road surface, the washing assembly can make contact with the road surface through the arranged lifting assembly, the brush roller rotates through the third motor, impurity particles on a test position can be cleaned away, and water sprayed by the spray head can improve the road surface cleaning effect; a wear resistance test unit is installed, the cleaned pavement enables a wear wheel to make contact with the ground through an air cylinder, the wear wheel rotates on the pavement through a first motor, and the wear degree of the wear wheel is observed; the abrasion resistance of the pavement is evaluated by comparing the loss of the abrasion wheel with the loss of the pavement material, and the abrasion wheel needs to hinder the wheels of the cart when rotating, so that the cart is prevented from rolling to influence the test.

Description

Technical Field

[0001] The utility model relates to the technical field of road wear resistance performance test, in particular to a road wear resistance performance test device. Background Art

[0002] The wear resistance of the road surface affects its service life and safety. Therefore, in order to ensure the reliability and safety of the road, the wear resistance of the road surface must be tested to inspect the project and check whether it is qualified.

[0003] Generally, the test is carried out through friction and wear test, which uses the effect of friction to conduct friction and wear test on the road surface to evaluate the wear resistance of the road surface. After the road is paved, some foreign particles appear on the road surface. If they are not cleaned, it will hinder the test of the wear resistance of the road surface, bring inconvenience to the test, and affect the test results. Utility Model Content

[0004] The utility model aims to provide a road wear resistance test device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a road wear resistance performance testing device, comprising a cart, a wear resistance testing unit is installed in the middle of the cart, and a road cleaning device is fixedly installed at the front end of the cart.

[0006] The wear test unit comprises a cylinder, which is arranged at the front and rear ends of the cart, a top plate is fixedly connected to the top side of the cylinder, and a wear wheel assembly is installed in the middle of the bottom side of the top plate.

[0007] The road cleaning device comprises a lifting assembly, which is mounted at the front end of the cart, and a flushing assembly is fixedly mounted at the front end of the lifting assembly.

[0008] As a further preferred embodiment of the present technical solution, the cart includes a body, a connecting frame is fixedly connected to the rear end of the body, a rectangular groove is opened in the middle of the body, and the cylinder is respectively located at the front and rear sides of the rectangular groove.

[0009] As a further preferred embodiment of the present technical solution, the wear wheel assembly includes a bracket, which is fixedly connected to the middle position of the bottom side of the top plate, the inner wall of the bracket is rotatably connected to the wear wheel, and a motor is installed on the top side of the bracket, and the motor is connected to the wear wheel through a conveyor belt.

[0010] In the above technical solution, the motor 1 causes the wear wheel to rotate on the road surface, observes the degree of wear of the wear wheel, and evaluates the wear resistance of the road surface by comparing the loss of the wear wheel with the loss of road surface material.

[0011] As a further preferred embodiment of the present technical solution, the lifting assembly includes a mounting shell, the mounting shell is fixedly connected to the front side of the vehicle body, a screw rod is arranged at the middle position inside the mounting shell through a bearing, guide columns are fixedly connected to the left and right sides of the mounting shell, a bevel gear group is arranged on the top side of the screw rod, a second motor is installed on the driving end of the bevel gear group, the second motor is arranged at the front end edge of the vehicle body, a movable plate is threadedly connected to the outer wall of the screw rod, and the left and right ends of the movable plate are slidably connected to the outer wall of the guide column.

[0012] As a further preferred embodiment of the present technical solution, the rear side of the movable panel is slidably connected to the outer surface of the front end of the vehicle body, and the front side of the movable panel passes through the mounting shell.

[0013] In the above technical solution, the flushing component can be brought into contact with the road surface through the provided lifting component.

[0014] As a further preferred embodiment of the present technical solution, the flushing assembly includes a water storage box, which is fixedly connected to the front side of the movable plate, a water inlet pipe is fixedly connected to the through hole at the upper end of the water storage box, and nozzles are arranged on the bottom side of the water storage box.

[0015] As a further preferred embodiment of the present technical solution, a rotating rod is rotatably connected to the lower side of the water storage box, a brush roller is sleeved on the outer wall of the rotating rod, a motor three is installed at the upper edge of the water storage box, and the motor three is connected to the rotating rod through a conveyor belt.

[0016] In the above technical solution, the motor three makes the brush roller rotate, which can clean up the foreign particles on the test position, and the water sprayed by the nozzle can improve the road cleaning effect.

[0017] The utility model provides a road wear resistance test device, which has the following beneficial effects:

[0018] (1) The utility model installs a road cleaning device. When the cart moves forward on the road surface, the lifting component can make the flushing component contact with the road surface, and the brush roller can be rotated by motor three to clean up the foreign particles on the test position. The water sprayed by the nozzle can improve the road cleaning effect and prevent the foreign particles on the road surface from affecting the test results of wear resistance.

[0019] (2) The utility model installs a wear test unit. After the road surface is cleaned, the wear wheel is brought into contact with the ground through a cylinder, and the wear wheel is rotated on the road surface through a motor. The degree of wear of the wear wheel is observed, and the wear resistance of the road surface is evaluated by comparing the loss of the wear wheel with the loss of road surface material. When the wear wheel rotates, the wheels of the cart need to be blocked to prevent the cart from rolling and affecting the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall structure of the pavement wear resistance test device of the utility model;

[0021] Figure 2 The utility model is Figure 2 A schematic diagram of the structure of a road sweeping device;

[0022] Figure 3 The utility model is Figure 2 Schematic diagram of brush roller structure;

[0023] Figure 4 The utility model is Figure 1 Schematic diagram of the structure of the wear test unit;

[0024] In the figure: 1. cart; 2. wear test unit; 3. road cleaning device; 11. vehicle body; 12. connecting frame; 13. rectangular groove; 21. cylinder; 22. top plate; 23. wear wheel assembly; 231. bracket; 232. wear wheel; 233. motor one; 31. lifting assembly; 32. flushing assembly; 311. mounting shell; 312. screw rod; 313. bevel gear set; 314. motor two; 315. guide column; 316. movable plate; 321. water storage box; 322. water inlet pipe; 323. nozzle; 324. rotating rod; 325. brush roller; 326. motor three. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] The utility model provides a technical solution: Figure 1 As shown, in this embodiment, a road wear resistance performance test device includes a cart 1, a wear resistance test unit 2 is installed in the middle of the cart 1, a road cleaning device 3 is fixedly installed at the front end of the cart 1, the cart 1 includes a body 11, a connecting frame 12 is fixedly connected to the rear end of the body 11, a rectangular groove 13 is opened in the middle of the body 11, and the cylinder 21 is respectively located at the front and rear sides of the rectangular groove 13.

[0027] like Figure 1 and Figure 4As shown, the wear test unit 2 includes a cylinder 21, which is arranged at the front and rear ends of the cart 1. A top plate 22 is fixedly connected to the top side of the cylinder 21, and a wear wheel assembly 23 is installed in the middle of the bottom side of the top plate 22. The wear wheel assembly 23 includes a bracket 231, which is fixedly connected to the middle position of the bottom side of the top plate 22, and a wear wheel 232 is rotatably connected to the inner wall of the bracket 231. A motor 233 is installed on the top side of the bracket 231, and the motor 233 is connected to the wear wheel 232 through a conveyor belt. By installing the wear test unit 2, the cleaned road surface is passed through the cylinder 21 to make the wear wheel 232 contact with the ground, and the wear wheel 232 is rotated on the road surface through the motor 233, and the wear degree of the wear wheel 232 is observed, and the wear resistance of the road surface is evaluated by comparing the loss of the wear wheel 232 with the loss of the road surface material. When the wear wheel 232 rotates, it is necessary to block the wheels of the cart 1 to prevent the cart 1 from rolling and affecting the test.

[0028] like Figure 2 and Figure 3 As shown, the road sweeping device 3 includes a lifting component 31, which is installed at the front end of the cart 1, and a flushing component 32 is fixedly installed at the front end of the lifting component 31. The lifting component 31 includes a mounting shell 311, and the mounting shell 311 is fixedly connected to the front side of the vehicle body 11. A screw rod 312 is arranged at the middle position inside the mounting shell 311 through a bearing, and guide columns 315 are fixedly connected to the left and right sides of the mounting shell 311. A bevel gear set 313 is arranged on the top side of the screw rod 312, and a motor 2 314 is installed at the driving end of the bevel gear set 313. The motor 2 314 is arranged at the front edge of the vehicle body 11, and a movable plate 316 is threadedly connected to the outer wall of the screw rod 312. The left and right ends of the movable plate 316 are slidably connected to the outer wall of the guide column 315, and the rear side of the movable plate 316 is slidably connected to the outer surface of the front end of the vehicle body 11. The front side of the movable plate 316 passes through the mounting shell 311. The flushing component 32 includes a plurality of mounting shells 311, and the plurality of mounting shells 311 are connected to the plurality of mounting shells 311. The water storage box 321 is fixedly connected to the front side of the movable plate 316, a water inlet pipe 322 is fixedly connected to the through hole at the upper end of the water storage box 321, a nozzle 323 is arranged on the bottom side of the water storage box 321, a rotating rod 324 is rotatably connected to the lower side of the water storage box 321, a brush roller 325 is sleeved on the outer wall of the rotating rod 324, a motor 326 is installed at the upper edge of the water storage box 321, the motor 326 is connected to the rotating rod 324 through a conveyor belt, and the road cleaning device 3 is installed. When the cart 1 moves forward on the road surface, the lifting component 31 is set to make the flushing component 32 contact with the road surface, and the brush roller 325 is rotated by the motor 326, so as to clean up the foreign particles on the test position, and the water sprayed by the nozzle 323 can improve the road cleaning effect, so as to prevent the foreign particles on the road surface from affecting the test results of wear resistance.

[0029] The utility model provides a road wear resistance test device, and the specific working principle is as follows: the test personnel pushes the cart 1 onto the road surface, and after reaching the designated test position, the motor 2 314 is started to drive the bevel gear set 313 to rotate, so that the screw rod 312 rotates, and then the movable plate 316 moves downward on the screw rod 312 and the guide column 315 until the brush roller 325 contacts the road surface, and then the water tank is connected through the water inlet pipe 322, and water enters the water storage box 321 through the pump body in the water tank and the valve on the pipeline, and is sprayed out through the nozzle 323 to further clean the dust particles on the road surface; after the cleaning is completed, the cylinder 21 is started to make the wear wheel 232 contact with the road surface, and the wear degree of the wear wheel 232 is observed, and the wear resistance of the road surface is evaluated by comparing the loss of the wear wheel 232 with the loss of the road surface material, and when the wear wheel 232 rotates, the wheels of the cart 1 need to be blocked to prevent the cart 1 from rolling and affecting the test.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A road wear resistance test device, comprising a cart (1), characterized in that: A wear-resistant test unit (2) is installed in the middle of the cart (1), and a road cleaning device (3) is fixedly installed at the front end of the cart (1); The wear test unit (2) comprises a cylinder (21), the cylinder (21) being arranged at the front and rear ends of the cart (1), a top plate (22) being fixedly connected to the top side of the cylinder (21), and a wear wheel assembly (23) being installed in the middle of the bottom side of the top plate (22); The road cleaning device (3) comprises a lifting component (31), the lifting component (31) is mounted on the front end of the cart (1), and a flushing component (32) is fixedly mounted on the front end of the lifting component (31).

2. A road wear resistance test device according to claim 1, characterized in that: The cart (1) comprises a body (11), a connecting frame (12) is fixedly connected to the rear end of the body (11), a rectangular groove (13) is provided in the middle of the body (11), and the cylinder (21) is respectively located at the front and rear sides of the rectangular groove (13).

3. A road wear resistance test device according to claim 1, characterized in that: The wear wheel assembly (23) comprises a bracket (231), the bracket (231) is fixedly connected to the middle position of the bottom side of the top plate (22), the inner wall of the bracket (231) is rotatably connected to the wear wheel (232), and a motor 1 (233) is installed on the top side of the bracket (231), and the motor 1 (233) is connected to the wear wheel (232) via a conveyor belt.

4. A road wear resistance test device according to claim 1, characterized in that: The lifting assembly (31) comprises a mounting shell (311), the mounting shell (311) is fixedly connected to the front side of the vehicle body (11), a screw rod (312) is arranged at a middle position inside the mounting shell (311) through a bearing, guide columns (315) are fixedly connected to the left and right sides of the mounting shell (311), a bevel gear set (313) is arranged on the top side of the screw rod (312), a second motor (314) is installed on the driving end of the bevel gear set (313), and the second motor (314) is arranged at the front end edge of the vehicle body (11), and a movable plate (316) is threadedly connected to the outer wall of the screw rod (312), and the left and right ends of the movable plate (316) are slidably connected to the outer wall of the guide column (315).

5. A road wear resistance test device according to claim 4, characterized in that: The rear side of the movable plate (316) is slidably connected to the front end outer surface of the vehicle body (11), and the front side of the movable plate (316) passes through the mounting shell (311).

6. A road wear resistance test device according to claim 1, characterized in that: The flushing assembly (32) comprises a water storage box (321), the water storage box (321) is fixedly connected to the front side of the movable plate (316), a water inlet pipe (322) is fixedly connected to the through hole at the upper end of the water storage box (321), and a spray head (323) is arranged on the bottom side of the water storage box (321).

7. A road wear resistance test device according to claim 6, characterized in that: A rotating rod (324) is rotatably connected to the lower side of the water storage box (321), and a brush roller (325) is sleeved on the outer wall of the rotating rod (324). A motor (326) is installed at the upper edge of the water storage box (321), and the motor (326) is connected to the rotating rod (324) via a conveyor belt.

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