CN214197909U

CN214197909U - Road flatness tester

Info

Publication number: CN214197909U
Application number: CN202023289718.7U
Authority: CN
Inventors: 张晗; 崔晓青; 尹鹏涛; 高洁; 霍志静; 王岚; 张林华
Original assignee: Beijing Baojiaheng Infrastructure Investment Co ltd; Beijing Municipal Road & Bridge Science And Technology Development Co ltd; Beijing Drainage Group Co Ltd; Beijing Municipal Engineering Research Institute
Current assignee: Beijing Baojiaheng Infrastructure Investment Co ltd; Beijing Municipal Road & Bridge Science And Technology Development Co ltd; Beijing Drainage Group Co Ltd; Beijing Municipal Engineering Research Institute
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-14
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a road roughness tester belongs to road construction technical field, and wherein the frame includes truss structure, fixed knot constructs frame and instrument bearing board, and the controller is placed on instrument bearing board, prevents that the controller from being bumped by the mistake, guarantees that test work goes on smoothly. The truss structure is light in weight, and the truss structure is detachably connected with the front axle and the rear axle, so that the instrument and equipment can be conveniently detached, transported, loaded and unloaded and carried, and the working efficiency is improved. Two sides of the rack are symmetrically provided with two testing components, and the testing components are telescopically connected with the instrument bearing plate through a telescopic data transmission rod. Before testing, the distance between the testing component and the instrument bearing plate can be adjusted according to the road width and the track width, so that the flatness characteristics of the track can be accurately measured, the final results of the two measuring wheels are averaged, and the flatness value of the road can be accurately obtained.

Description

Road flatness tester

Technical Field

The utility model belongs to the technical field of the road construction, specifically be a road flatness tester.

Background

After the road construction is completed, the flatness of the road surface needs to be measured. The existing road flatness tester is an eight-wheel flatness tester, a measuring wheel is arranged at the position of a central line, power is provided by a tractor, the measuring wheel can fluctuate along with the unevenness of a road, so that the unevenness of the road is measured, and meanwhile, data are transmitted to a controller to obtain the unevenness value of the road to serve as an evaluation basis for road detection. The measuring device of such a continuous flatness gauge is usually located between the left and right wheels of the tractor, and in order to ensure that the measured position is located between the track bands or ruts on the old road, the tractor must ride the track band or rut centrally. Therefore, maintaining the accuracy of the measured position is a difficulty of the continuous flatness meter in detecting the flatness of the road surface.

However, the road rut generally has a position with a large influence on the road flatness under the action of the accumulated vehicle wheels, and the road center line position has little vehicle action, so that the rut line is more representative of the road flatness characteristics than the road center line position, and therefore, the current continuous flatness meter cannot accurately measure the road flatness condition.

In the chinese patent "a ground flatness appearance" with application number 201820150473.3, through improving to the existing big eight rounds of flatness appearance at present, except the test component on the original instrument central line, the telescopic test component has been increased. And measuring by two testing assemblies to obtain multiple groups of data.

However, when the floor flatness meter works, the controller is directly placed on the rack of a plate type structure, and the floor flatness meter is easy to miss and slide during testing, so that the measuring result is influenced. And the telescopic test assembly of second group passes through locking Assembly and assembly shaft connection, and the structure is complicated, and the cost is higher, and the maintenance is safeguarded loaded down with trivial details, is unfavorable for road roughness detection achievement under the multiple adverse conditions, and the while operation is complicated, and the work preparation time is more, is unfavorable for improving work efficiency. In addition, because a group of testing assemblies is newly added in the patent, the original heavy instrument is aggravated, and the transportation, the loading and the unloading are inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a road flatness tester to solve above-mentioned technical problem.

Therefore, the utility model provides a road flatness tester, including front axle, rear axle, rotation wheel, frame, test assembly, displacement sensor and controller, displacement sensor connects on test assembly, the controller is connected with the displacement sensor electricity, but test assembly and frame telescopic connection, the frame includes:

the front end and the rear end of the truss structure are respectively connected with the front bridge and the rear bridge;

a fixed structure frame connected to the bottom of the truss structure;

and the instrument bearing plate is connected in the frame of the fixed structure frame, and the controller is placed on the instrument bearing plate.

Preferably, the test assembly is telescopically coupled to the instrument support plate.

Preferably, a mounting hole is formed in the instrument bearing plate in the vertical movement direction, one side, close to the instrument bearing plate, of the testing assembly is connected with a telescopic data transmission rod matched with the mounting hole, and a lead of the displacement sensor penetrates through the telescopic data transmission rod and is electrically connected with the controller.

Preferably, the test assembly comprises:

the lining supporting plate is connected to one end, far away from the instrument supporting plate, of the telescopic data transmission rod;

the vertical rod is connected to the bottom of the lining supporting plate, and the displacement sensor is arranged on the vertical rod;

one end of the horizontal rod is hinged with the bottom end of the vertical rod;

the measuring wheel is connected to one end of the horizontal rod, which is far away from the vertical rod;

and one end of the spring is connected with the hinged joint of the horizontal rod and the vertical rod, and the other end of the spring is connected with the bottom of the lining supporting plate.

Preferably, a fixing plate is further connected between the horizontal rod and the lining support plate.

Preferably, the backing plate cooperates with a fixed structural frame.

Preferably, the truss structure comprises an upper chord, a lower chord, vertical web members connected between the upper chord and the lower chord, and horizontal web members connected between the upper chord and between the lower chord and the lower chord, and the fixed structural frame is connected between the lower chord and the lower chord.

Preferably, the top of front axle and rear axle is connected with the spliced pole, the both ends of truss structure are equipped with the connecting pipe with spliced pole complex.

Preferably, the connecting pipe is vertically connected between the upper chord and the lower chord.

Preferably, the front axle and the rear axle are also connected with hooks.

Compared with the prior art, the utility model discloses a characteristics and beneficial effect do:

(1) the utility model discloses a frame among the road roughness tester includes truss structure, fixed knot constructs frame and instrument bearing board, and the controller is placed on instrument bearing board, prevents that the controller from being bumped by the mistake, guarantees that test work goes on smoothly.

(2) The utility model discloses a bilateral symmetry at the frame sets up two test assembly in the road roughness tester, and test assembly passes through scalable data transmission pole and scalable the being connected of instrument bearing board. Before testing, the distance between the testing component and the instrument bearing plate can be adjusted according to the road width and the track width, so that the flatness characteristics of the track can be accurately measured, the final results of the two measuring wheels are averaged, and the flatness value of the road can be accurately obtained.

(3) The utility model discloses a road roughness tester's frame main part adopts truss structure, alleviates the weight of frame, is to dismantle between truss structure and front axle and the rear axle and is connected, greatly makes things convenient for dismantlement, transportation, loading and unloading, the transport of instrument and equipment, improves work efficiency simultaneously.

Drawings

Fig. 1 is a schematic view (non-operating state) of a road flatness tester.

Fig. 2 is a schematic view (working state) of the road flatness tester.

Fig. 3 is a schematic diagram of a rack and a controller.

Fig. 4 is a schematic view of the front axle, the connecting column and the rotating wheel.

The attached drawings are marked as follows: 1-front axle, 2-rear axle, 3-frame, 31-fixed structure frame, 32-instrument supporting plate, 33-truss structure, 331-upper chord, 332-lower chord, 333-vertical web member, 334-horizontal web member, 4-test component, 41-lining supporting plate, 42-vertical bar, 43-horizontal bar, 44-measuring wheel, 45-spring, 46-fixed plate, 5-displacement sensor, 6-controller, 7-telescopic data transmission rod, 8-connecting column, 9-connecting pipe, 10-hook and 11-rotating wheel.

Detailed Description

In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, a road flatness tester comprises a front axle 1, a rear axle 2, a rotating wheel 11, a frame 3, a testing component 4, a displacement sensor 5 and a controller 6, wherein the displacement sensor 5 is connected to the testing component 4, and the controller 6 is electrically connected with the displacement sensor 5. The test assembly 4 is telescopically connected to the frame 3.

The frame 3 comprises a truss structure 33, a fixed structure frame 31 and an instrument supporting plate 32, wherein the front end and the rear end of the truss structure 33 are respectively connected with the front axle 1 and the rear axle 2. The fixed structure frame 31 is attached to the bottom of the truss structure 33. An instrument support plate 32 is attached within the frame of the fixed structure frame 31 and the controller 6 is placed on the instrument support plate 32. The test assembly 4 is telescopically coupled to the instrument support plate 32.

The truss structure 33 is light in weight and simple in structure. Truss structure 33 includes an upper chord 331, a lower chord 332, vertical web members 333 connected between upper chord 331 and lower chord 332, and horizontal web members 334 connected between upper chord 331 and upper chord 331, and between lower chord 332 and lower chord 332, with fixed structural frame 31 connected between lower chord 332 and lower chord 332.

The instrument bearing plate 32 is internally provided with a mounting hole in the vertical movement direction, one side of the test component 4 close to the instrument bearing plate 32 is connected with a telescopic data transmission rod 7 matched with the mounting hole, and a lead of the displacement sensor 5 penetrates through the telescopic data transmission rod 7 and is electrically connected with the controller 6.

The top of front axle 1 and rear axle 2 is connected with spliced pole 8, and the both ends of truss structure 33 are equipped with and spliced pole 8 complex connecting pipe 9. Specifically, the connecting pipe 9 is vertically connected between the upper chord 331 and the lower chord 332. The front axle 1 and the rear axle 2 are also connected with a hook 10 which plays a role in passive traction and pulling in the detection process.

The test assembly 4 comprises a backing plate 41, a vertical rod 42, a horizontal rod 43, a measuring wheel 44 and a spring 45. A backing plate 41 is attached to the end of the telescopic data transfer rod 7 remote from the instrument support plate 32, the backing plate 41 cooperating with the fixed structural frame 31. The vertical rod 42 is connected to the bottom of the lining support plate 41, and the displacement sensor 5 is arranged on the vertical rod 42, specifically on the top of the vertical rod 42. One end of the horizontal rod 43 is hinged with the bottom end of the vertical rod 42. A measuring wheel 44 is attached to the end of the horizontal bar 43 remote from the vertical bar 42. One end of the spring 45 is connected with the hinged joint of the horizontal rod 43 and the vertical rod 42, and the other end is connected with the bottom of the lining supporting plate 41. A fixing plate 46 is also connected between the horizontal rod 43 and the lining plate 41, and the fixing plate 46 defines the measuring wheel 44 in a certain vertical direction as a fulcrum.

During the measurement, frame 3 is marchd on the road surface by manpower or tractor traction, and measuring wheel 44 rotates thereupon, and when the road surface is unevenness, measuring wheel 44 drives horizontal rod 43 and rotates to drive montant 42 and take place to slide, montant 42 removes thereupon, and displacement sensor 5 on the montant 42 detects the displacement volume of montant 42, and gives controller 6 with signal transmission, is handled the data that record by controller 6, and the roughness result on analysis road surface.

The above embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims.

Claims

1. The utility model provides a road flatness tester, includes front axle (1), rear axle (2), rotates wheel (11), frame (3), test assembly (4), displacement sensor (5) and controller (6), displacement sensor (5) are connected on test assembly (4), controller (6) are connected with displacement sensor (5) electricity, its characterized in that, test assembly (4) and frame (3) scalable connection, frame (3) include:

a truss structure (33) having front and rear ends connected to the front axle (1) and the rear axle (2), respectively;

a fixed structure frame (31) connected to the bottom of the truss structure (33);

an instrument support plate (32) connected within the frame of the fixed structure frame (31), the controller (6) being placed on the instrument support plate (32).

2. The road flatness tester of claim 1, wherein: the test component (4) is telescopically connected with the instrument bearing plate (32).

3. The road flatness tester of claim 2, wherein: the instrument bearing plate is characterized in that a mounting hole is formed in the instrument bearing plate (32) in the vertical movement direction, one side, close to the instrument bearing plate (32), of the test component (4) is connected with a telescopic data transmission rod (7) matched with the mounting hole, and a lead of the displacement sensor (5) penetrates through the telescopic data transmission rod (7) and is electrically connected with the controller (6).

4. The road flatness tester according to claim 3, wherein the test assembly (4) comprises:

the lining supporting plate (41) is connected to one end, far away from the instrument supporting plate (32), of the telescopic data transmission rod (7);

the vertical rod (42) is connected to the bottom of the lining supporting plate (41), and the displacement sensor (5) is arranged on the vertical rod (42);

one end of the horizontal rod (43) is hinged with the bottom end of the vertical rod (42);

the measuring wheel (44) is connected to one end of the horizontal rod (43) far away from the vertical rod (42);

and one end of the spring (45) is connected with the hinged joint of the horizontal rod (43) and the vertical rod (42), and the other end of the spring is connected with the bottom of the lining supporting plate (41).

5. The road flatness tester of claim 4, wherein: and a fixing plate (46) is also connected between the horizontal rod (43) and the lining supporting plate (41).

6. The road flatness tester of claim 4, wherein: the lining support plate (41) is matched with the fixed structure frame (31).

7. The road flatness tester of claim 1, wherein: the truss structure (33) comprises an upper chord (331), a lower chord (332), a vertical web member (333) connected between the upper chord (331) and the lower chord (332), and horizontal web members (334) connected between the upper chord (331) and the upper chord (331), and between the lower chord (332) and the lower chord (332), and the fixed structure frame (31) is connected between the lower chord (332) and the lower chord (332).

8. The road flatness tester of claim 7, wherein: the top of front axle (1) and rear axle (2) is connected with spliced pole (8), the both ends of truss structure (33) are equipped with connecting pipe (9) with spliced pole (8) complex.

9. The road flatness tester of claim 8, wherein: the connecting pipe (9) is vertically connected between the upper chord (331) and the lower chord (332).

10. The road flatness tester of claim 1, wherein: the front axle (1) and the rear axle (2) are also connected with a hook (10).