Device for detecting wear resistance of concrete pavement

Abstract

The utility model discloses a concrete pavement wear resistance detection device which comprises a bottom supporting plate, one end of the bottom supporting plate is fixedly connected with an L-shaped supporting plate, a lifting mechanism is installed on the L-shaped supporting plate, a friction degree adjusting mechanism is installed on the lifting mechanism, and the concrete pavement wear resistance detection device further comprises a grinding mechanism installed on the friction degree adjusting mechanism. The friction degree between the grinding mechanism and the ground is adjusted through a lifting mechanism and a friction degree adjusting mechanism, the lifting mechanism comprises a servo motor installed at the top end of an L-shaped supporting plate, and an output shaft of the servo motor is connected with a threaded rod through a coupler. By arranging the friction degree adjusting mechanism on the lifting mechanism, the pressure of the grinding wheel on the ground can be adjusted, so that the friction degree can be adjusted, the pavement wear resistance test is more flexible and diversified, and the test requirements of different concrete pavements are met.

Description

Technical Field

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

[0002] Concrete pavement refers to a road surface with cement concrete slab as the surface layer. It refers to a road surface structure composed of cement concrete slab as the surface layer, with base layer and cushion layer underneath. It is also called rigid pavement, commonly known as white pavement. It is a high-grade pavement. After the concrete pavement is built, it is necessary to test the wear resistance of the pavement.

[0003] The existing concrete pavement wear resistance testing device mainly rubs the road surface with a rotating grinding wheel, and observes the friction of the road surface after a certain period of time; however, this method has the following shortcomings: the degree of friction between the grinding wheel and the ground depends entirely on the gravity of the grinding wheel, so the degree of friction between the grinding wheel and the ground cannot be adjusted. Utility Model Content

[0004] In view of the problems existing in the existing concrete pavement wear resistance detection device, the utility model is proposed.

[0005] Therefore, the purpose of the utility model is to provide a concrete pavement wear resistance detection device, which solves the problem that the existing concrete pavement wear resistance detection device mainly rubs the road surface through a rotating grinding wheel, and observes the friction of the road surface after a certain period of time; however, this method has the following shortcomings: the degree of friction between the grinding wheel and the ground depends entirely on the gravity of the grinding wheel, so the degree of friction between the grinding wheel and the ground cannot be adjusted.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A concrete pavement wear resistance testing device comprises a bottom support plate, one end of the bottom support plate is fixedly connected to an L-shaped support plate, a lifting mechanism is installed on the L-shaped support plate, a friction degree adjustment mechanism is installed on the lifting mechanism, and also includes a grinding mechanism installed on the friction degree adjustment mechanism;

[0008] The friction degree between the grinding mechanism and the ground is adjusted by the lifting mechanism and the friction degree adjusting mechanism.

[0009] As a preferred solution of the concrete pavement wear resistance detection device described in the utility model, the lifting mechanism includes a servo motor installed on the top of the L-shaped support plate, the output shaft of the servo motor is connected to a threaded rod through a coupling, the threaded rod is threadedly connected to a lifting beam, and the lifting beam is slidably connected to the L-shaped support plate.

[0010] As a preferred solution of the concrete pavement wear resistance testing device described in the utility model, wherein: a through hole is opened on the L-shaped support plate, and the lifting beam is slidably connected to the inner wall of the through hole.

[0011] As a preferred solution of the wear resistance detection device for concrete pavement of the utility model, wherein: a bearing seat is installed on the bottom support plate, and the bottom end of the threaded rod is rotatably connected to the bearing seat through a bearing;

[0012] An internal threaded pipe is fixedly mounted on the lifting beam, and the inner wall of the internal threaded pipe is threadedly connected to the threaded rod.

[0013] As a preferred solution of the concrete pavement wear resistance testing device described in the utility model, a universal wheel is installed at the bottom of the bottom support plate, a limiting ring is welded at the top of the bottom support plate, and a counterweight block is inserted in the limiting ring.

[0014] As a preferred solution of the concrete pavement wear resistance detection device described in the utility model, the friction degree adjustment mechanism includes a guide rod slidably connected to the lifting beam, the bottom end of the guide rod is detachably connected to a disc, a spring is sleeved on the guide rod, the top end of the spring is fixedly connected to a ring, and the ring is fixed to the bottom of the lifting beam by bolts.

[0015] As a preferred solution of the concrete pavement wear resistance testing device described in the utility model, wherein: a support connecting seat is welded on the disc, the bottom of the guide rod is inserted into the support connecting seat, and the support connecting seat and the guide rod are fixed by bolts.

[0016] As a preferred solution of the concrete pavement wear resistance detection device described in the utility model, the grinding mechanism includes a U-shaped bracket connected to the circular ring by bolts, a grinding wheel is rotatably connected to the U-shaped bracket through a bearing, and one end of the grinding wheel is connected to the output shaft of the motor through a coupling.

[0017] Compared with existing technologies:

[0018] By arranging a friction adjustment mechanism on the lifting mechanism, the pressure of the grinding wheel on the ground can be adjusted, so that the friction adjustment can be achieved, thereby making the road wear resistance test more flexible and diverse, and meeting different concrete road surface testing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure provided by the utility model;

[0020] Figure 2 A schematic diagram of the guide rod and the disc provided by the utility model;

[0021] Figure 3 A top view of the lifting beam provided by the utility model;

[0022] Figure 4 A schematic diagram of an L-shaped support plate provided by the utility model.

[0023] In the figure: L-shaped support plate 1, threaded rod 2, lifting beam 3, internal threaded tube 4, servo motor 5, guide rod 6, scale 8, spring 9, support connecting seat 10, disc 11, U-shaped bracket 12, motor 13, bearing seat 14, universal wheel 15, limit ring 16, counterweight block 17, ring 18, through hole 19. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the implementation methods of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides a concrete pavement wear resistance testing device, please refer to Figure 1-4 , including a bottom support plate, one end of which is fixedly connected to an L-shaped support plate 1, a universal wheel 15 is installed at the bottom of the bottom support plate, and the universal wheel 15 is a universal wheel with a brake pad, a limit ring 16 is welded on the top of the bottom support plate, and a counterweight block 17 is inserted in the limit ring 16, and the counterweight block 17 is used to ensure the stability of the device and prevent the spring 9 from being compressed and causing the device to be lifted up, a through hole 18 is opened on the L-shaped support plate 1, and the lifting beam 3 is slidably connected to the inner wall of the through hole 18, and a lifting mechanism is installed on the L-shaped support plate 1, and a friction degree adjustment mechanism is installed on the lifting mechanism, and also includes a grinding mechanism installed on the friction degree adjustment mechanism;

[0026] The friction degree between the grinding mechanism and the ground is adjusted by the lifting mechanism and the friction degree adjusting mechanism.

[0027] The lifting mechanism includes a servo motor 5 installed on the top of the L-shaped support plate 1. The output shaft of the servo motor 5 is connected to a threaded rod 2 through a coupling. A lifting beam 3 is threadedly connected to the threaded rod 2. The lifting beam 3 is slidably connected to the L-shaped support plate 1.

[0028] A bearing seat 14 is installed on the bottom support plate, and the bottom end of the threaded rod 2 is rotatably connected to the bearing seat 14 through a bearing; an internal threaded tube 4 is fixedly installed on the lifting beam 3, and the inner wall of the internal threaded tube 4 is threadedly connected to the threaded rod 2; the threaded rod 2 is driven to rotate by the servo motor 5, thereby driving the lifting beam 3 to descend, so that the grinding wheel in the grinding mechanism is in contact with the concrete floor.

[0029] The friction degree adjustment mechanism includes a guide rod 6 slidably connected to the lifting beam 3, and a disc 11 is detachably connected to the bottom end of the guide rod 6. Specifically, a support connection seat 10 is welded on the disc 11, and the bottom of the guide rod 6 is inserted into the support connection seat 10, and the support connection seat 10 and the guide rod 6 are fixed by bolts. A spring 9 is sleeved on the guide rod 6, and a ring 18 is fixedly connected to the top of the spring 9, and the ring 18 is fixed to the bottom of the lifting beam 3 by bolts; the guide rod 6 is a square column, and a square through hole matching the guide rod 6 is opened on the lifting beam 3, so that the grinding mechanism will not rotate under the existence of the guide rod 6; the lifting mechanism drives the grinding wheel to descend, thereby compressing the spring 9, and the degree of compression of the spring 9 is different, so the degree of friction between the grinding wheel and the ground is also different, so that the degree of friction between the grinding wheel and the ground can be adjusted according to the length of the compressed spring 9; a scale 8 is installed at the end of the lifting beam 3.

[0030] The grinding mechanism includes a U-shaped bracket 12 connected to a ring 18 by bolts, a grinding wheel is rotatably connected to the U-shaped bracket 12 via a bearing, one end of the grinding wheel is connected to the output shaft of a motor 13 via a coupling; the motor 13 drives the grinding wheel to rotate, thereby generating friction with the concrete floor.

[0031] During specific use, the device is moved to a concrete pavement, and the servo motor 5 is started to drive the threaded rod 2 to rotate, thereby driving the grinding mechanism to descend until the grinding wheel in the grinding mechanism contacts the pavement; the compressed length of the spring 9 is adjusted according to the pressure between the grinding wheel and the pavement as required; the motor 13 is started to drive the grinding wheel to rotate, thereby performing a friction test on the pavement.

[0032] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A concrete pavement wear resistance testing device, comprising a bottom support plate, one end of which is fixedly connected to an L-shaped support plate (1), and a lifting mechanism is installed on the L-shaped support plate (1), characterized in that: The lifting mechanism is provided with a friction adjustment mechanism, and further comprises a grinding mechanism installed on the friction adjustment mechanism; The friction degree between the grinding mechanism and the ground is adjusted by the lifting mechanism and the friction degree adjusting mechanism.

2. The concrete pavement wear resistance detection device according to claim 1, characterized in that: The lifting mechanism comprises a servo motor (5) mounted on the top of an L-shaped support plate (1); an output shaft of the servo motor (5) is connected to a threaded rod (2) via a coupling; a lifting beam (3) is threadedly connected to the threaded rod (2); and the lifting beam (3) is slidably connected to the L-shaped support plate (1).

3. The concrete pavement wear resistance detection device according to claim 2, characterized in that: The L-shaped support plate (1) is provided with a through hole (19), and the lifting beam (3) is slidably connected to the inner wall of the through hole (19).

4. The concrete pavement wear resistance detection device according to claim 2 or 3, characterized in that: A bearing seat (14) is mounted on the bottom support plate, and the bottom end of the threaded rod (2) is rotatably connected to the bearing seat (14) via a bearing; An internally threaded tube (4) is fixedly mounted on the lifting crossbeam (3), and the inner wall of the internally threaded tube (4) is threadedly connected to the threaded rod (2).

5. The concrete pavement wear resistance detection device according to any one of claims 1 to 4, characterized in that: A universal wheel (15) is installed at the bottom of the bottom support plate, a limit ring (16) is welded to the top of the bottom support plate, and a counterweight (17) is inserted into the limit ring (16).

6. The concrete pavement wear resistance testing device according to claim 1, characterized in that: The friction adjustment mechanism comprises a guide rod (6) slidably connected to the lifting beam (3), the bottom end of the guide rod (6) being detachably connected to a disc (11), a spring (9) being sleeved on the guide rod (6), the top end of the spring (9) being fixedly connected to a ring (18), and the ring (18) being fixed to the bottom of the lifting beam (3) by means of bolts.

7. The concrete pavement wear resistance detection device according to claim 6, characterized in that: A support connection seat (10) is welded to the disc (11), the bottom of the guide rod (6) is inserted into the support connection seat (10), and the support connection seat (10) and the guide rod (6) are fixed by bolts.

8. The concrete pavement wear resistance testing device according to claim 6, characterized in that: The grinding mechanism comprises a U-shaped bracket (12) connected to a circular ring (18) via bolts, a grinding wheel being rotatably connected to the U-shaped bracket (12) via a bearing, and one end of the grinding wheel being connected to an output shaft of a motor (13) via a coupling.

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