CN113702226B - Wheel assembly for simulating wearing of pavement marker - Google Patents
Wheel assembly for simulating wearing of pavement marker Download PDFInfo
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- CN113702226B CN113702226B CN202110991906.4A CN202110991906A CN113702226B CN 113702226 B CN113702226 B CN 113702226B CN 202110991906 A CN202110991906 A CN 202110991906A CN 113702226 B CN113702226 B CN 113702226B
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- 239000003550 marker Substances 0.000 title claims description 4
- 238000005299 abrasion Methods 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000004088 simulation Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000005096 rolling process Methods 0.000 abstract description 10
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a wheel assembly for simulating abrasion of a road marking, and aims to provide a wheel assembly for simulating abrasion of the road marking, which can simulate the abrasion working condition of the road marking by a wheel pair during high-speed turning of an automobile. The novel wheel comprises a frame and a plurality of stand columns, wherein one side of each stand column is provided with a wheel body, the wheel body is rotationally connected with the stand column, the stand column is provided with a plurality of connecting rods which are mutually parallel, the stand column is movably connected with the frame through the connecting rods, the frame is positioned on the other corresponding side of the stand column, the frame is provided with a first cylinder, the first cylinder is positioned at the end part of the stand column, one end of the first cylinder is rotationally connected with the frame, and the other end of the first cylinder is rotationally connected with the stand column. The beneficial effects of the invention are as follows: the abrasion working condition of the wheel pair mark line during high-speed turning of the automobile can be simulated; the accuracy of rolling abrasion and sliding abrasion of the wheel body to the marking line is improved; the vehicle wheel is favorable for continuously testing the marked lines, and the occupied area is small.
Description
Technical Field
The invention relates to the technical field of wheels, in particular to a wheel assembly for simulating wear of pavement markings.
Background
The road marking is arranged on the road surface and is marked by lines, arrows, characters, elevation marks, protruding marking lines, outline marks and the like for providing road information, the degree of abrasion caused by the action of wheels with different loads under different road conditions and different environments is detected, the road marking has very important significance, and the road marking device provides basis for the problems of road maintenance period, marking materials, marking durability, marking construction conditions and the like; the abrasion condition of the wheels, which is generated by the action of the wheels with the road surface under different working conditions, different road conditions and different loads, is an important index for evaluating the service life of the wheels, the quality of the wheels and the like, and the wheel and marking abrasion simulation test equipment is established, so that the service lives of tires and marking can be accelerated and predicted in a laboratory, the abrasion condition is tested, the road test is avoided, and the whole test process is safe, reliable and rapid, and the result can be quantitatively identified.
Because the automobile can generate centrifugal force during high-speed turning, the wheel pressure on one side is increased and sideslips with the road surface, and the existing simulation experiment device can not simulate the working condition that the wheel pair marks are worn during high-speed turning.
Disclosure of Invention
The invention provides a wheel assembly for simulating pavement marking wear, which can simulate the wheel pair marking wear working condition when an automobile turns at a high speed, in order to overcome the defect that the existing simulation experiment device can not simulate the wheel pair marking wear working condition when the automobile turns at a high speed in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a wheel subassembly of simulation road surface marking wearing and tearing, it includes frame and a plurality of stand, one side of stand is equipped with the wheel body, the wheel body rotates with the stand to be connected, be equipped with the connecting rod that a plurality of blocks are parallel to each other on the stand, the stand passes through connecting rod and frame swing joint, the frame is located the opposite side that the stand is corresponding, be equipped with cylinder one in the frame, cylinder one is located the tip of stand, the one end and the frame rotation of cylinder one are connected, the other end and the stand rotation of cylinder one are connected.
One side of stand is equipped with the wheel body, the wheel body rotates with the stand to be connected, be equipped with the connecting rod that a plurality of blocks are parallel to each other on the stand, the stand passes through connecting rod and frame swing joint, the frame is located the opposite side that the stand corresponds, be equipped with cylinder one in the frame, cylinder one is located the tip of stand, the one end and the frame rotation of cylinder one are connected, the other end and the stand rotation of cylinder one are connected. The frame drives the wheel body to rotate under the action of the driving motor, and the wheel body rolls along the marking so as to test the rolling abrasion of the wheel body to the marking; the pair of wheel bodies of the air cylinder apply loading pressure, so that rolling abrasion of the wheel bodies to the marking is conveniently tested under different pressures, meanwhile, the wheel bodies slide to one side of the frame under the action of a plurality of connecting rods, so that sliding abrasion of the wheel bodies to the marking is conveniently tested, further, the working condition of simulating the abrasion of the wheel bodies to the marking when the wheel bodies are in a centrifugal state in high-speed turning can be realized, and the aim of simulating the working condition of simulating the abrasion of the wheel pair marking when the automobile is in high-speed turning is achieved; the connecting rods are parallel to each other, so that the upright posts are in a vertical state all the time, the wheel body is guaranteed to be perpendicular to the road surface all the time and fully contacted with the marking, and the accuracy of rolling abrasion and sliding abrasion of the wheel body to the marking is improved.
Preferably, the shape of the frame is circular, a plurality of mounting beams corresponding to the stand columns one by one are arranged at the edge of the frame, the plurality of mounting beams are uniformly distributed along the circumferential direction of the frame, the left side of the mounting beams is connected with the frame, the stand columns are positioned on the right side of the mounting beams, and the stand columns are movably connected with the mounting beams through connecting rods. The frame drives a plurality of wheel body of edge and is circular motion when the self-passing under driving of driving motor, and the wearing and tearing operating mode of wheel pair marking when more truly simulating the car turn, design like this is favorable to the wheel to carry out continuous test to the marking simultaneously, and area is little.
Preferably, the four connecting rods are all arranged, two connecting rods are located on the front side of the mounting beam, the other two connecting rods are located on the rear side of the mounting beam, one end of each connecting rod is rotationally connected with the corresponding upright post, the other end of each connecting rod is rotationally connected with the mounting beam, and the two connecting rods on the same side of the mounting beam, the corresponding upright post and the corresponding mounting beam form a parallelogram structure. When the cylinder I acts on the stand and exerts pressure to the wheel body, the parallelogram structure is favorable to the stand to be vertical state all the time, guarantees that the wheel body is perpendicular to the road surface all the time and fully contacts with the marking, is favorable to improving the accuracy of the rolling wear and the sliding wear of wheel body to the marking.
Preferably, the top of installation roof beam is equipped with the mounting panel, the connecting rod is located the bottom of installation roof beam, mounting panel and installation roof beam mutually perpendicular, the one end of mounting panel and the right side fixed connection of installation roof beam, the other end of mounting panel is corresponding and with cylinder one rotation connection with the position of stand, the bottom terminal surface of installation roof beam is less than the radius of wheel body to the perpendicular distance at wheel body center, prevents installation roof beam and ground contact for wheel body can fully contact with the marking, be equipped with the strengthening rib on the installation roof beam, be favorable to improving the connection structural strength of mounting panel and installation roof beam, the strengthening rib respectively with installation roof beam and mounting panel fixed connection. When the first air cylinder acts on the end part of the upright post to apply pressure to the wheel body, the first air cylinder is respectively connected with the mounting plate and the upright post in a rotating way, so that the wheel body can slide to one side where the frame is located under the action of the connecting rod, and the sliding abrasion of the wheel body to the marking line can be conveniently tested.
Preferably, the diameter of the wheel body is larger than the length of the stand column, the wheel body is in full contact with the marking, the center of the wheel body is provided with a rotating shaft, one end of the rotating shaft is rotationally connected with the wheel body, the other end of the rotating shaft is fixedly connected with the center of the stand column, a second cylinder is arranged on the stand column, the second cylinder is detachably connected with the stand column, an elastic telescopic shaft is arranged at the output end of the second cylinder, one end of the elastic telescopic shaft is connected with the output end of the second cylinder, a brake block is arranged at the other end of the elastic telescopic shaft, a brake groove matched with the brake block is arranged on the wheel body, the shape of the brake groove is arc-shaped, and the arc center of the brake groove is positioned at the center of the wheel body. When the sliding abrasion of the wheel body to the marking is required to be tested in a braking state, the second air cylinder is started, so that the brake block acts on the wheel body, the elastic telescopic shaft is in a contracted state, the wheel body continues to rotate, the brake block gradually slides into the brake groove, the elastic telescopic shaft gradually extends from the original contracted state until the brake block is limited by the brake groove, and the wheel body is locked, so that the abrasion working condition of the wheel to the marking during automobile braking is also facilitated to be simulated; the arc center of the brake groove is positioned at the center of the wheel body, so that the brake block can gradually slide into the brake groove when the wheel body rotates.
Preferably, the elastic telescopic shaft comprises a shaft barrel and a shaft rod, one end of the shaft barrel is connected with the output end of the second cylinder, a limiting ring matched with the shaft rod is fixed at the other end of the shaft barrel, one end of the shaft rod penetrates through the limiting ring and is located in the shaft barrel, a limiting block is arranged at one end of the shaft rod located in the shaft barrel, the diameter of the limiting block is larger than the inner diameter of the limiting ring, a spring is arranged on the limiting block, the shaft rod is elastically connected with the inner side wall of the shaft barrel through the spring, and the other end of the shaft rod is connected with the brake block. The cylinder is positioned between the frame and the upright post optimally and is arranged on the side surface of the upright post, at the moment, the elastic telescopic shaft penetrates through the upright post to be connected with the brake block, and the brake block is matched with the brake groove to play a locking role on the wheel body, so that the design is beneficial to improving the strength of the elastic telescopic shaft and prolonging the service life of the elastic telescopic shaft.
Preferably, the center of the wheel body is provided with a wheel seat, the wheel seat is detachably connected with the wheel body, one end of the rotating shaft is positioned in the wheel seat and provided with a plurality of bearings, the rotating shaft is rotatably connected with the wheel seat through the plurality of bearings respectively, and the brake groove is positioned on the wheel seat. The rotating shafts are respectively connected with the wheel seats in a rotating way through a plurality of bearings, so that friction force between the rotating shafts and the wheel bodies is reduced when the wheel bodies rotate, and the wheel bodies rotate more smoothly.
Preferably, the wheel seat comprises a pipe body, a cover body and a flange, the wheel body is sleeved on the pipe body, one end of the pipe body is away from the stand column, the other end of the pipe body is close to the stand column, the cover body and one end of the pipe body, which is away from the stand column, are detachably connected, the flange and one end of the pipe body, which is close to the stand column, are fixedly connected and integrally formed, the pipe body is detachably connected with the wheel body through the flange, one side of the flange is fixedly connected with the pipe body, the center of the other side corresponding to the flange is provided with an oil seal seat, the oil seal seat is detachably connected with the flange, the center of the oil seal seat is provided with an oil seal body, and one end of the rotating shaft penetrates through the oil seal body and is located in the pipe body and is rotationally connected with the pipe body through a plurality of bearings respectively. The wheel body is detachably connected with the pipe body on the wheel seat through the flange, so that the experimenters can replace the wheel bodies with different models according to the test requirements to conduct experiments, and the accuracy of experimental data is improved according to different working conditions.
Preferably, the brake groove is located on one side of the flange, which is provided with the oil seal seat, the brake block is made of rubber, friction force between the brake block and the side wall of the brake groove is increased, the width in the middle of the brake block is identical to that of the brake groove, the width of the brake block is gradually reduced from the middle to two ends, and the design is beneficial to the wheel body to rotate forwards or reversely, and the brake block can slide into the brake groove to play a guiding role, and meanwhile, the reduction of the wheel body is facilitated.
Preferably, both ends of the brake groove are provided with unloading grooves matched with the brake blocks, one end of each unloading groove is communicated with the brake groove, the other end of each unloading groove is closed, and the width of each unloading groove is larger than the width of the middle of each brake block. When the brake block slides into the brake groove through the end part of the brake block, the wheel body is decelerated, when the brake block slides into the unloading groove through the brake groove, the brake block is contacted with one closed end of the unloading groove, so that the wheel body is completely locked and cannot continuously rotate, the width of the unloading groove is larger than the width of the middle of the brake block, the brake block is favorable for exiting the unloading groove under the action of a second cylinder, and the brake block can be reused conveniently next time.
The beneficial effects of the invention are as follows: the abrasion working condition of the wheel pair mark line during high-speed turning of the automobile can be simulated; the accuracy of rolling abrasion and sliding abrasion of the wheel body to the marking line is improved; the continuous test of the marking line can be carried out on the wheel, and the occupied area is small; the abrasion working condition of the wheel pair mark line during automobile braking is facilitated to be simulated; the rotation of the wheel body is smooth; the wheel body of different models is replaced according to the test requirement by an experimenter to carry out experiments, so that the accuracy of experimental data is improved according to different working conditions; the wheel body can rotate positively or reversely, the appearance design of the brake block can play a role in guiding the brake block to slide into the brake groove, and meanwhile, the speed reduction of the wheel body is facilitated; the wheel body is completely locked and cannot rotate continuously; is convenient for the next repeated use.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is an enlarged view of the structure at D in FIG. 2;
FIG. 4 is an enlarged view of the structure at E in FIG. 1;
FIG. 5 is a cross-sectional view of A-A of FIG. 1;
Fig. 6 is an enlarged view of the structure at C in fig. 5;
Fig. 7 is an enlarged view of the structure at F in fig. 6;
Fig. 8 is a cross-sectional view of B-B of fig. 4.
In the figure: 1. the hydraulic brake system comprises a frame, a column, a wheel body, a connecting rod, a cylinder I, a mounting beam, a mounting plate, a reinforcing rib, a rotating shaft, a cylinder II, a spring telescopic shaft, a brake block, a brake groove, a shaft cylinder, a shaft rod, a limiting ring, a limiting block, a spring, a wheel seat, a bearing, a pipe body, a cover body, a flange, an oil seal seat, an oil seal body and an unloading groove.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
In the embodiment shown in fig. 1, 2 and 3, a wheel assembly for simulating wear of pavement markings comprises a frame 1 and a plurality of upright posts 2, wherein one side of each upright post 2 is provided with a wheel body 3, the wheel body 3 is rotationally connected with the upright post 2, the upright post 2 is provided with a plurality of connecting rods 4 which are mutually parallel, the upright post 2 is movably connected with the frame 1 through the connecting rods 4, the frame 1 is positioned on the other side corresponding to the upright post 2, the frame 1 is provided with a first cylinder 5, the first cylinder 5 is positioned at the end part of the upright post 2, one end of the first cylinder 5 is rotationally connected with the frame 1, and the other end of the first cylinder 5 is rotationally connected with the upright post 2.
As shown in fig. 1,2 and 3, the shape of the frame 1 is circular, the edge of the frame 1 is provided with a plurality of mounting beams 6 corresponding to the upright posts 2 one by one, the plurality of mounting beams 6 are uniformly distributed along the circumferential direction of the frame 1, the left side of the mounting beams 6 is connected with the frame 1, the upright posts 2 are positioned on the right side of the mounting beams 6, and the upright posts 2 are movably connected with the mounting beams 6 through connecting rods 4.
As shown in fig. 3 and 4, the four connecting rods 4 are total, two connecting rods 4 are located at the front side of the mounting beam 6, the other two connecting rods 4 are located at the rear side of the mounting beam 6, one end of each connecting rod 4 is rotationally connected with the upright post 2, the other end of each connecting rod 4 is rotationally connected with the mounting beam 6, and the two connecting rods 4 on the same side of the mounting beam 6, the upright post 2 and the mounting beam 6 form a parallelogram structure.
As shown in fig. 3, 5 and 6, the top of the mounting beam 6 is provided with a mounting plate 7, the connecting rod 4 is located at the bottom of the mounting beam 6, the mounting plate 7 is perpendicular to the mounting beam 6, one end of the mounting plate 7 is fixedly connected with the right side of the mounting beam 6, the other end of the mounting plate 7 corresponds to the position of the upright post 2 and is rotationally connected with the first cylinder 5, the vertical distance from the bottom end surface of the mounting beam 6 to the center of the wheel body 3 is smaller than the radius of the wheel body 3, the mounting beam 6 is provided with a reinforcing rib 8, and the reinforcing rib 8 is respectively fixedly connected with the mounting beam 6 and the mounting plate 7.
As shown in fig. 6,7 and 8, the diameter of the wheel body 3 is larger than the length of the upright post 2, the center of the wheel body 3 is provided with a rotating shaft 9, one end of the rotating shaft 9 is rotationally connected with the wheel body 3, the other end of the rotating shaft 9 is fixedly connected with the center of the upright post 2, a second cylinder 10 is arranged on the upright post 2, the second cylinder 10 is detachably connected with the upright post 2, an elastic telescopic shaft 11 is arranged at the output end of the second cylinder 10, one end of the elastic telescopic shaft 11 is connected with the output end of the second cylinder 10, a brake block 12 is arranged at the other end of the elastic telescopic shaft 11, a brake groove 13 matched with the brake block 12 is arranged on the wheel body 3, the shape of the brake groove 13 is arc-shaped, and the arc center of the brake groove 13 is positioned at the center of the wheel body 3.
As shown in fig. 7, the elastic telescopic shaft 11 comprises a shaft barrel 14 and a shaft lever 15, one end of the shaft barrel 14 is connected with the output end of the second cylinder 10, a limiting ring 16 matched with the shaft lever 15 is fixed at the other end of the shaft barrel 14, one end of the shaft lever 15 penetrates through the limiting ring 16 and is positioned in the shaft barrel 14, a limiting block 17 is arranged at one end of the shaft lever 15 positioned in the shaft barrel 14, the diameter of the limiting block 17 is larger than the inner diameter of the limiting ring 16, a spring 18 is arranged on the limiting block 17, the shaft lever 15 is elastically connected with the inner side wall of the shaft barrel 14 through the spring 18, and the other end of the shaft lever 15 is connected with the brake block 12.
As shown in fig. 6 and 7, the center of the wheel body 3 is provided with a wheel seat 19, the wheel seat 19 is detachably connected with the wheel body 3, one end of the rotating shaft 9 is positioned in the wheel seat 19 and provided with a plurality of bearings 20, the rotating shaft 9 is respectively and rotatably connected with the wheel seat 19 through the plurality of bearings 20, and the brake groove 13 is positioned on the wheel seat 19.
As shown in fig. 6 and 7, the wheel seat 19 comprises a pipe body 21, a cover body 22 and a flange 23, the wheel body 3 is sleeved on the pipe body 21, one end of the pipe body 21 is far away from the upright post 2, the other end of the pipe body 21 is close to the upright post 2, the cover body 22 and one end of the pipe body 21 far away from the upright post 2 are detachably connected, the flange 23 and one end of the pipe body 21 close to the upright post 2 are fixedly connected and integrally formed, the pipe body 21 is detachably connected with the wheel body 3 through the flange 23, one side of the flange 23 is fixedly connected with the pipe body 21, an oil seal seat 24 is arranged at the center of the other side corresponding to the flange 23, the oil seal seat 24 is detachably connected with the flange 23, an oil seal body 25 is arranged at the center of the oil seal seat 24, and one end of the rotating shaft 9 penetrates through the oil seal body 25 to be positioned in the pipe body 21 and is respectively rotationally connected with the pipe body 21 through a plurality of bearings 20.
As shown in fig. 7 and 8, the brake groove 13 is located on the side of the flange 23 provided with the oil seal seat 24, the brake block 12 is made of rubber, the width of the middle of the brake block 12 is the same as the width of the brake groove 13, and the width of the brake block 12 gradually decreases from the middle to both ends.
As shown in fig. 8, both ends of the brake slot 13 are provided with unloading slots 26 matched with the brake block 12, one end of each unloading slot 26 is communicated with the brake slot 13, the other end of each unloading slot 26 is closed, and the width of each unloading slot 26 is larger than that of the middle of the brake block 12.
The frame 1 drives the wheel body 3 seat to move circularly while self-transmitting under the action of the driving motor, and the wheel body 3 rolls along the marking so as to test the rolling abrasion of the wheel body 3 to the marking; the loading pressure of the first 5 of the air cylinders to the wheel body 3 is adjustable within the range of 0-500 Kg, when the first 5 of the air cylinders is used for loading the wheel body 3, the wheel body 3 is convenient to test rolling abrasion of the marking under different pressures, meanwhile, the wheel body 3 slides to one side of the frame 1 under the action of the connecting rod 4, sliding abrasion of the wheel body 3 to the marking is convenient to test, and further working conditions of simulating abrasion of the marking when the wheel body 3 is in a centrifugal state in high-speed turning can be realized.
When the wheel body 3 needs to be tested and the sliding abrasion of the marking is carried out under the braking state, the second cylinder 10 is started, the second cylinder 10 enables the brake block 12 to act on the wheel body 3 through the elastic telescopic shaft 11, at the moment, the elastic telescopic shaft 11 is in a contracted state, the wheel body 3 continuously rotates, the brake block 12 gradually slides into the brake groove 13, the elastic telescopic shaft 11 gradually stretches from the original contracted state, when the middle part of the wheel body 3 is clamped into the brake groove 13, the wheel body 3 is decelerated, when the brake block 12 slides into the unloading groove 26 through the brake groove 13, the brake block 12 is contacted with one closed end of the unloading groove 26, and the wheel body 3 is completely locked so as to simulate the working condition that the wheel body 3 wears the marking on the road when an automobile brakes.
In the experimental process, the linear speed of the wheel body 3 and the rolling times of the road marking can be set through the PLC central controller, the sensor on the marking and the frequency converter on the driving motor, and the linear speed and the rolling times of the road marking can be displayed, printed and stored in real time through the sensor on the marking and the PLC central controller; the loading pressure on the wheel body 3 can be set and displayed in real time by the PLC central controller, the first cylinder 5 and the sensors on the standard line.
Claims (7)
1. The utility model provides a wheel subassembly that simulation road surface marking was worn and torn, its characterized in that, including frame (1) and a plurality of stand (2), one side of stand (2) is equipped with wheel body (3), wheel body (3) are connected with stand (2) rotation, be equipped with connecting rod (4) that a plurality of pieces are parallel to each other on stand (2), stand (2) pass through connecting rod (4) and frame (1) swing joint, frame (1) are located the opposite side that stand (2) is corresponding, be equipped with cylinder one (5) on frame (1), cylinder one (5) are located the tip of stand (2), the one end and the frame (1) rotation of cylinder one (5) are connected, the other end and the stand (2) rotation of cylinder one (5) are connected, the diameter of wheel body (3) is greater than the length of stand (2), the center of wheel body (3) is equipped with pivot (9), the one end and the frame (3) rotation of pivot (9) are connected, the other end and the center of stand (2) of stand (9) are located the opposite end, be equipped with cylinder one end (10) on two cylinder (2) are equipped with flexible output (10), one end of the elastic telescopic shaft (11) is connected with the output end of the second cylinder (10), a brake block (12) is arranged at the other end of the elastic telescopic shaft (11), a brake groove (13) matched with the brake block (12) is arranged on the wheel body (3), the shape of the brake groove (13) is arc-shaped, and the arc center of the brake groove (13) is positioned at the center of the wheel body (3); the shape of the frame (1) is circular, a plurality of mounting beams (6) which are in one-to-one correspondence with the upright posts (2) are arranged at the edge of the frame (1), the plurality of mounting beams (6) are uniformly distributed along the circumferential direction of the frame (1), the left side of the mounting beams (6) is connected with the frame (1), the upright posts (2) are positioned on the right side of the mounting beams (6), and the upright posts (2) are movably connected with the mounting beams (6) through connecting rods (4); the four connecting rods (4) are shared, two connecting rods (4) are located on the front side of the mounting beam (6), the other two connecting rods (4) are located on the rear side of the mounting beam (6), one end of each connecting rod (4) is rotationally connected with the corresponding upright post (2), the other end of each connecting rod (4) is rotationally connected with the corresponding mounting beam (6), and the two connecting rods (4) on the same side of the mounting beam (6), the corresponding upright post (2) and the corresponding mounting beam (6) form a parallelogram structure.
2. The wheel assembly for simulating pavement marking wear according to claim 1, wherein the top of the mounting beam (6) is provided with a mounting plate (7), the connecting rod (4) is located at the bottom of the mounting beam (6), the mounting plate (7) is perpendicular to the mounting beam (6), one end of the mounting plate (7) is fixedly connected with the right side of the mounting beam (6), the other end of the mounting plate (7) corresponds to the position of the upright post (2) and is rotationally connected with the first cylinder (5), the vertical distance from the bottom end surface of the mounting beam (6) to the center of the wheel body (3) is smaller than the radius of the wheel body (3), the mounting beam (6) is provided with a reinforcing rib (8), and the reinforcing rib (8) is fixedly connected with the mounting beam (6) and the mounting plate (7) respectively.
3. The wheel assembly for simulating pavement marking wear according to claim 1, wherein the elastic telescopic shaft (11) comprises a shaft cylinder (14) and a shaft rod (15), one end of the shaft cylinder (14) is connected with the output end of the cylinder II (10), a limiting ring (16) matched with the shaft rod (15) is fixed at the other end of the shaft cylinder (14), one end of the shaft rod (15) penetrates through the limiting ring (16) and is positioned in the shaft cylinder (14), a limiting block (17) is arranged at one end of the shaft rod (15) positioned in the shaft cylinder (14), the diameter of the limiting block (17) is larger than the inner diameter of the limiting ring (16), a spring (18) is arranged on the limiting block (17), the shaft rod (15) is elastically connected with the inner side wall of the shaft cylinder (14) through the spring (18), and the other end of the shaft rod (15) is connected with the brake block (12).
4. The wheel assembly for simulating abrasion of pavement marking according to claim 1, wherein the wheel seat (19) is arranged at the center of the wheel body (3), the wheel seat (19) is detachably connected with the wheel body (3), one end of the rotating shaft (9) is positioned in the wheel seat (19) and provided with a plurality of bearings (20), the rotating shaft (9) is respectively and rotatably connected with the wheel seat (19) through the plurality of bearings (20), and the brake groove (13) is positioned on the wheel seat (19).
5. The wheel assembly for simulating pavement marking wear according to claim 4, wherein the wheel seat (19) comprises a pipe body (21), a cover body (22) and a flange (23), the wheel body (3) is sleeved on the pipe body (21), one end of the pipe body (21) is far away from the upright post (2), the other end of the pipe body (21) is close to the upright post (2), the cover body (22) is detachably connected with one end of the pipe body (21) far away from the upright post (2), the flange (23) is fixedly connected with one end of the pipe body (21) close to the upright post (2) and is integrally formed, the pipe body (21) is detachably connected with the wheel body (3) through the flange (23), one side of the flange (23) is fixedly connected with the pipe body (21), an oil seal seat (24) is arranged at the center of the other side corresponding to the flange (23), the oil seal seat (24) is detachably connected with the flange (23), an oil seal body (25) is arranged at the center of the oil seal seat (24), and one end of the oil seal body (9) is detachably connected with the pipe body (21) through a plurality of bearings (21) in a plurality of rotation bearings (20).
6. The wheel assembly for simulating abrasion of pavement marker according to claim 5, wherein the brake groove (13) is located on a side of the flange (23) provided with the oil seal seat (24), the brake block (12) is made of rubber, the width of the middle of the brake block (12) is the same as the width of the brake groove (13), and the width of the brake block (12) gradually decreases from the middle to both ends.
7. The wheel assembly for simulating abrasion of a pavement marker according to claim 1, wherein both ends of the brake groove (13) are provided with unloading grooves (26) matched with the brake blocks (12), one end of each unloading groove (26) is communicated with the brake groove (13), the other end of each unloading groove (26) is closed, and the width of each unloading groove (26) is larger than the width of the middle of each brake block (12).
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| CN202110991906.4A CN113702226B (en) | 2021-08-27 | 2021-08-27 | Wheel assembly for simulating wearing of pavement marker |
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| CN202110991906.4A CN113702226B (en) | 2021-08-27 | 2021-08-27 | Wheel assembly for simulating wearing of pavement marker |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209673585U (en) * | 2019-09-10 | 2019-11-22 | 四川京炜数字科技有限公司 | A kind of abrasion wheel apparatus for roadmarking device for testing endurance |
| CN112326271A (en) * | 2020-11-20 | 2021-02-05 | 湖北科技学院 | Wear simulation equipment for wheel or marked line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4278597A (en) * | 1996-11-05 | 1998-05-07 | Rohm And Haas Company | Device for testing durability of painted surfaces by accelerating wear and method used therefor |
| CN208705191U (en) * | 2018-08-21 | 2019-04-05 | 漯河市天龙化工有限公司 | Bituminous pavement accelerating and loading test machine |
| CN209485945U (en) * | 2019-01-29 | 2019-10-11 | 西安凯德液压机电有限责任公司 | A kind of experimental rig of study of tire and practical pavement friction characteristic |
| RU2706387C1 (en) * | 2019-03-13 | 2019-11-18 | Александр Васильевич Корниенко | Device for testing road pavement for wear by flat tires, sector element of ring of road pavement for this device and method of testing road pavement for wear by studded tires on this device |
| CN112014259A (en) * | 2020-09-10 | 2020-12-01 | 山东省高速路桥养护有限公司 | Road traffic marking durability testing device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209673585U (en) * | 2019-09-10 | 2019-11-22 | 四川京炜数字科技有限公司 | A kind of abrasion wheel apparatus for roadmarking device for testing endurance |
| CN112326271A (en) * | 2020-11-20 | 2021-02-05 | 湖北科技学院 | Wear simulation equipment for wheel or marked line |
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Effective date of registration: 20240716 Address after: 313104 Hongxingqiao Industrial Park, Changxing County, Huzhou City, Zhejiang Province Applicant after: Zhejiang Brothers Roadsign Technology Co.,Ltd. Country or region after: China Address before: 313104 Hongxingqiao Industrial Park, Changxing County, Huzhou City, Zhejiang Province Applicant before: ZHEJIANG BROTHER GUIDEPOST PAINT Co.,Ltd. Country or region before: China |
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