Equipment for testing wear resistance of protruding road sign

Abstract

The invention relates to the technical field of road facility detection, in particular to protruding road sign wear resistance testing equipment which comprises a tray, a plurality of grooves are formed in the tray, pressure sensors are fixedly connected to the interiors of the grooves, a simulation assembly is arranged on the tray, and the simulation assembly comprises a support, a hydraulic machine, a lifting column, a rotating pipe, a hub, a rubber sleeve and a through hole. A rotating assembly is arranged on the tray and comprises a shell, a motor, a slot and a prism, the shell is fixedly connected to the tray, the motor is fixedly connected to the shell, the prism is fixedly connected to an output shaft of the motor, the slot is formed in a lifting column, the prism is slidably connected into the slot, and a seepage assembly is arranged in the lifting column. According to the device, the wear resistance of a plurality of protruding road signs can be detected at the same time, and the process of rolling the protruding road signs by a vehicle is simulated in the detection process, so that the test process is convenient, and the detection result is more real.

Description

Technical Field

[0001] The invention relates to the technical field of road facility detection, in particular to a device for testing the wear resistance of raised road signs. Background Art

[0002] Raised road signs, also known as road spikes, are a type of traffic facility fixed to the road surface. They are mainly used to provide road marking functions. Since raised road signs are fixed on the ground, they are frequently crushed by passing vehicles during use. Therefore, raised road signs need to have a certain strength to avoid damage due to vehicle crushing.

[0003] The strength requirements of raised road signs mainly lie in hardness and wear resistance. The hardness of raised road signs can be tested by squeezing and colliding with hard objects, while the wear resistance test requires rubbing the raised road signs with different friction forces. Therefore, compared with the hardness test, the wear resistance test process is more complicated. Raised road signs are usually used in batches. Therefore, when performing wear resistance testing on batches of raised road signs, there are problems of time-consuming and labor-intensive. For this reason, a device that can facilitate wear resistance testing of raised road signs is needed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a raised road sign wear resistance testing device, which can perform wear resistance testing on multiple raised road signs at the same time, and simulates the process of a vehicle rolling over the raised road signs during the testing process, so the testing process is convenient and the test results are more realistic.

[0005] The technical solution to achieve the purpose of the present invention is: a test device for the wear resistance of raised road signs, comprising a tray, a plurality of grooves are provided on the tray, and pressure sensors are fixedly connected to the interiors of the plurality of grooves, a simulation component is arranged on the tray, and the simulation component comprises a bracket, a hydraulic press, a lifting column, a rotating tube, a wheel hub, a rubber sleeve and a through hole, the bracket is fixedly connected to the tray, the hydraulic press is fixedly connected to the bracket, the lifting column is fixedly connected to the hydraulic press, the two rotating tubes are rotatably connected to the lifting column, the two wheel hubs are respectively fixedly connected to the two rotating tubes, and the two rubber sleeves are fixedly connected to the two rotating tubes. The sleeves are fixedly connected to the two wheel hubs respectively, and the multiple through holes are respectively opened on the two rubber sleeves. A rotating component is arranged on the tray, and the rotating component includes a shell, a motor, a slot and a prism. The shell is fixedly connected to the tray, and the motor is fixedly connected to the shell. The prism is fixedly connected to the output shaft of the motor. The slot is opened on the lifting column, and the prism is slidably connected to the inside of the slot. A seepage component is arranged inside the lifting column, and the seepage component includes a cavity. Two cavities are opened inside the lifting column, and the insides of the two cavities are respectively connected with the insides of the two rotating tubes.

[0006] Preferably, the rotating assembly further comprises a lifting seat, a transmission tooth and a spring, the lifting seat is slidably connected to the shell, the transmission tooth is fixedly connected to the lifting seat, and the spring is fixedly connected between the inner wall of the shell and the lifting seat.

[0007] Preferably, the rotating assembly further comprises gears, and two of the gears are respectively fixedly connected to the two rotating tubes.

[0008] Preferably, the seepage component further comprises a rotating shaft and a seepage hole, the two rotating shafts are rotatably connected to the inside of the two cavities respectively, and the two seepage holes are respectively opened on the two rotating shafts.

[0009] Preferably, the seepage component further comprises a pawl and a ratchet, the two pawls are respectively arranged on the two rotating tubes, and the two ratchet wheels are respectively fixedly connected to the two rotating shafts.

[0010] Preferably, the seepage component further comprises a threaded plug, and two of the threaded plugs are threadedly connected to the lifting column.

[0011] Preferably, the two rotating shafts divide the two cavities respectively, and the two pawls and the two ratchet wheels are arranged in different directions.

[0012] Compared with the prior art, the present invention has the following significant advantages:

[0013] First, in the present invention, multiple road signs that need to be detected can be placed in respective grooves, and then the hydraulic press is started to move the lifting column downward. When the lifting column moves downward, it drives the two rotating tubes and the wheel hub to move downward, and then the gear on the rotating tube is stuck on the transmission tooth. Then the rotating tube continues to move downward, and the gear is pressed downward, driving the lifting seat to move downward until the rubber sleeve is against the road sign below, squeezing the road sign. At this time, the pressure on the road sign can be detected by the pressure sensor. When the pressure value is close to the pressure value of the vehicle rolling over, the hydraulic press can be closed.

[0014] Second: In the present invention, in order to simulate the effect of a vehicle rolling over a road sign, the motor can be started. After the motor is started, the prism rotates, driving the lifting column and the rotating tube to rotate. At this time, the rubber sleeve and the wheel hub can act as tires, rolling on the pallet, and rolling over the road sign during the rolling process. When the wheel hub rotates, since the rubber sleeve fits the surface of the pallet and the surface of the road sign, it will generate friction on the road sign. The friction force is related to the pressure and the friction coefficient. The material of the road sign and the rubber sleeve determines the friction coefficient, and the pressure is detected by the pressure sensor. Therefore, the friction force can be obtained by detection and calculation, and the wear resistance can be reflected by the friction time. When the lifting column rotates, the gear is stuck on the transmission tooth, so the gear will also rotate due to the meshing with the transmission tooth, thereby driving the rotating tube to rotate, and the wheel hub rotates accordingly, forming a rotating tire, thereby simulating the rolling effect.

[0015] Thirdly, in the present invention, when the rotating tube rotates, the pawl in the cavity will also rotate at any time. The rotation of the pawl will turn the ratchet on the rotating shaft, thereby driving the ratchet and the rotating shaft to rotate. Each time the pawl turns the ratchet, the rotating shaft will rotate ninety degrees. As the rotating tube rotates continuously, the liquid seepage hole on the rotating shaft also rotates continuously. Therefore, the threaded plug can be opened in advance, and water and friction enhancer solution can be poured into the two cavities respectively. The pawls on the two rotating tubes and the ratchet above them are set in different directions, so the motor can be controlled to rotate in different directions. The two rotating tubes are rotated in different directions. Only one of the two rotating shafts can rotate at the same time. As the rotating shafts rotate, when the seepage holes rotate to open upward, the water or friction enhancer solution in the cavity will seep downward through the seepage holes. The leaked water or friction enhancer solution will enter the rotating tube, then drip into the wheel hub, and finally be discharged through the through holes on the rubber sleeve. The discharged water or friction enhancer solution will soak the surface of the road sign, thereby increasing the friction, so as to simulate the effect of vehicle tires rolling over the road sign in rainy and snowy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0018] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0019] Figure 3 is a cross-sectional view of the internal structure of the present invention;

[0020] Figure 4 The present invention Figure 3 An enlarged view of the structure of part A is shown;

[0021] Figure 5 It is a schematic diagram of the structure of the transfer tube and the seepage component of the present invention;

[0022] Figure 6 It is a schematic diagram of the internal structure of the shell in the present invention.

[0023] Description of reference numerals:

[0024] 1. Tray; 2. Groove; 3. Pressure sensor; 4. Analog component; 41. Bracket; 42. Hydraulic press; 43. Lifting column; 44. Rotating tube; 45. Hub; 46. Rubber sleeve; 47. Through hole; 5. Rotating component; 51. Shell; 52. Motor; 53. Slot; 54. Prism; 55. Lifting seat; 56. Transmission tooth; 57. Gear; 58. Spring; 6. Seepage component; 61. Cavity; 62. Threaded plug; 63. Rotating shaft; 64. Seepage hole; 65. Pawl; 66. Ratchet; 7. Road sign. DETAILED DESCRIPTION

[0025] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The present invention provides a protruding road sign wear resistance testing device through improvement. The technical solution of the present invention is:

[0027] like Figure 1-Figure 6 As shown, a test device for the wear resistance of a raised road sign comprises a tray 1, a plurality of grooves 2 are provided on the tray 1, and pressure sensors 3 are fixedly connected inside the plurality of grooves 2. A simulation component 4 is provided on the tray 1, and the simulation component 4 comprises a bracket 41, a hydraulic press 42, a lifting column 43, a rotating tube 44, a wheel hub 45, a rubber sleeve 46 and a through hole 47. The bracket 41 is fixedly connected to the tray 1, the hydraulic press 42 is fixedly connected to the bracket 41, the lifting column 43 is fixedly connected to the hydraulic press 42, two rotating tubes 44 are rotatably connected to the lifting column 43, two wheel hubs 45 are respectively fixedly connected to two rotating tubes 44, and two rubber sleeves 46 are respectively fixedly connected to two A plurality of through holes 47 are respectively provided on two rubber sleeves 46. A rotating assembly 5 is provided on the tray 1. The rotating assembly 5 includes a shell 51, a motor 52, a slot 53 and a prism 54. The shell 51 is fixedly connected to the tray 1, the motor 52 is fixedly connected to the shell 51, the prism 54 is fixedly connected to the output shaft of the motor 52, the slot 53 is provided on the lifting column 43, the prism 54 is slidably connected to the inside of the slot 53, and a seepage assembly 6 is provided inside the lifting column 43. The seepage assembly 6 includes a cavity 61. Two cavities 61 are provided inside the lifting column 43, and the insides of the two cavities 61 are respectively connected to the insides of the two rotating tubes 44.

[0028] The wheel hub 45 is fixed to the end of the rotating tube 44 by bolts and other connecting parts. When water or friction enhancer solution flows out of the rotating tube 44, it will directly leak downward and then be discharged from the through hole 47. The wheel hub 45 and the rubber sleeve 46 are equivalent to tires. When water or friction enhancer solution is discharged from the through hole 47, the surface of the rubber sleeve 46 will be soaked, thereby simulating the effect of vehicle tires rolling over the road sign 7 in rainy and snowy weather. The two cavities 61 are used to hold water or friction enhancer solution respectively.

[0029] Further, such as Figure 3 and Figure 6 As shown, the rotating assembly 5 also includes a lifting seat 55, a transmission tooth 56 and a spring 58. The lifting seat 55 is slidably connected to the shell 51, the transmission tooth 56 is fixedly connected to the lifting seat 55, and the spring 58 is fixedly connected between the inner wall of the shell 51 and the lifting seat 55.

[0030] Further, such as Figure 1-Figure 5 As shown, the rotating assembly 5 also includes a gear 57. The two gears 57 are fixedly connected to the two rotating tubes 44 respectively. When the gear 57 moves downward with the rotating tube 44, it will mesh with the transmission tooth 56. Then the rotating tube 44 continues to move downward, and the lifting seat 55 presses down the spring 58, so that the gear 57 and the transmission tooth 56 mesh more tightly.

[0031] Further, such as Figure 4 and Figure 5 As shown, the liquid seepage component 6 further includes a rotating shaft 63 and a liquid seepage hole 64 . The two rotating shafts 63 are rotatably connected to the inside of the two cavities 61 , respectively. The two liquid seepage holes 64 are respectively opened on the two rotating shafts 63 .

[0032] Further, such as Figure 4 and Figure 5 As shown, the seepage assembly 6 further includes a pawl 65 and a ratchet 66 . The two pawls 65 are respectively disposed on the two rotating tubes 44 , and the two ratchet wheels 66 are respectively fixedly connected to the two rotating shafts 63 .

[0033] Furthermore, the seepage component 6 also includes a threaded plug 62, two threaded plugs 62 are threadedly connected to the lifting column 43, and the two cavities 61 are respectively used to contain water and a friction enhancer solution. Water can be used to simulate the rolling of the tire on the road sign 7 in rainy weather, and the friction enhancer solution increases the friction between the road sign 7 and the rubber sleeve 46 on the basis of water to simulate the situation of the road sign 7 in a more severe environment.

[0034] Furthermore, the two rotating shafts 63 divide the two cavities 61 respectively, and the two pawls 65 and the two ratchet wheels 66 are set in different directions. Because the directions of the two pawls 65 and the ratchet wheels 66 are different, when the two rotating tubes 44 rotate, one of the pawls 65 will drive the ratchet wheel 66 to rotate, while the other pawl 65 will not drive the other ratchet wheel 66 to rotate. Each time the pawl 65 drives the ratchet wheel 66, the rotating shaft 63 will rotate ninety degrees. When the seepage hole 64 on the rotating shaft 63 rotates to open upward, the liquid in the cavity 61 leaks out. After the pawl 65 rotates one circle, it drives the ratchet wheel 66 again. Then, the rotating shaft 63 rotates ninety degrees, and the liquid no longer leaks. The opening and closing of the seepage hole 64 can be achieved by controlling the number of circles of rotation of the rotating tube 44.

[0035] The specific working method is: first, place multiple road signs 7 that need to be detected into each groove 2 respectively, and then start the hydraulic press 42, and use the hydraulic press 42 to move the lifting column 43 downward. When the lifting column 43 moves downward, it drives the two rotating tubes 44 and the wheel hub 45 to move downward, and then the gear 57 on the rotating tube 44 will be stuck on the transmission tooth 56. Then the rotating tube 44 continues to move downward, and the gear 57 is pressed downward, driving the lifting seat 55 to move downward until the rubber sleeve 46 presses against the road sign 7 below, squeezing the road sign 7. At this time, the pressure on the road sign 7 can be detected by the pressure sensor 3. When the pressure value is close to the pressure value of the vehicle rolling, the hydraulic press 42 can be turned off.

[0036] In order to simulate the effect of a vehicle rolling over the road sign 7, the motor 52 can be started. After the motor 52 is started, the prism 54 rotates, driving the lifting column 43 and the rotating tube 44 to rotate. At this time, the rubber sleeve 46 and the wheel hub 45 can act as tires, rolling on the tray 1, and rolling over the road sign 7 during the rolling process. When the wheel hub 45 rotates, since the rubber sleeve 46 fits the surface of the tray 1 and the surface of the road sign 7, it will generate friction on the road sign 7. The friction force is related to the pressure and the friction coefficient. The material of the road sign 7 and the rubber sleeve 46 determines the friction coefficient, and the pressure is detected by the pressure sensor 3. Therefore, the friction force can be obtained by detection and calculation, and the wear resistance can be reflected by the friction time. When the lifting column 43 rotates, the gear 57 is stuck on the transmission tooth 56, so the gear 57 will also rotate due to the meshing with the transmission tooth 56, thereby driving the rotating tube 44 to rotate, and the wheel hub 45 rotates accordingly, forming a rotating tire, thereby simulating the rolling effect.

[0037] When the rotating tube 44 rotates, the pawl 65 located in the cavity 61 will also rotate at any time. The rotation of the pawl 65 will turn the ratchet 66 on the rotating shaft 63, thereby driving the ratchet 66 and the rotating shaft 63 to rotate. Each time the pawl 65 turns the ratchet 66, the rotating shaft 63 will rotate ninety degrees. As the rotating tube 44 continues to rotate, the liquid seepage hole 64 on the rotating shaft 63 also rotates continuously. Therefore, the threaded plug 62 can be opened in advance, and water and friction enhancer solution can be poured into the two cavities 61 respectively. The pawls 65 on the two rotating tubes 44 and the ratchet 66 above them are set in different directions, so the motor 52 can be controlled to rotate in different directions, so that the two rotating tubes 44 are turned in different directions. The two rotating shafts 63 rotate in the same direction. Only one rotating shaft 63 can rotate at the same time. As the rotating shaft 63 rotates, when the seepage hole 64 rotates to open upward, the water or friction enhancer solution in the cavity 61 will leak downward through the seepage hole 64. The leaked water or friction enhancer solution will enter the rotating tube 44, and then flow into the wheel hub 45, and finally be discharged through the through hole 47 on the rubber sleeve 46. The discharged water or friction enhancer solution will soak the surface of the road sign 7, thereby increasing the friction force to simulate the effect of the vehicle tire rolling over the road sign 7 in rainy and snowy weather. After the test is completed, the hydraulic press 42 is started to raise and reset the lifting column 43.

[0038] The technical means disclosed in the solution of the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A device for testing the wear resistance of raised road signs, comprising a tray (1), characterized in that: The tray (1) is provided with a plurality of grooves (2), each of which is fixedly connected to a pressure sensor (3). The tray (1) is provided with a simulation component (4), the simulation component (4) comprising a bracket (41), a hydraulic press (42), a lifting column (43), a rotating tube (44), a wheel hub (45), a rubber sleeve (46) and a through hole (47). The bracket (41) is fixedly connected to the tray (1), the hydraulic press (42) is fixedly connected to the bracket (41), the lifting column (43) is fixedly connected to the hydraulic press (42), the two rotating tubes (44) are rotatably connected to the lifting column (43), the two wheel hubs (45) are respectively fixedly connected to the two rotating tubes (44), the two rubber sleeves (46) are respectively fixedly connected to the two wheel hubs (45), and the plurality of through holes (47) are fixedly connected to the two rotating tubes (44). 47) are respectively opened on the two rubber sleeves (46); a rotating assembly (5) is arranged on the tray (1); the rotating assembly (5) comprises a shell (51), a motor (52), a slot (53) and a prism (54); the shell (51) is fixedly connected to the tray (1); the motor (52) is fixedly connected to the shell (51); the prism (54) is fixedly connected to the output shaft of the motor (52); the slot (53) is opened on the lifting column (43); the prism (54) is slidably connected to the inside of the slot (53); a liquid seepage assembly (6) is arranged inside the lifting column (43); the liquid seepage assembly (6) comprises a cavity (61); two cavities (61) are opened inside the lifting column (43); the insides of the two cavities (61) are respectively connected to the insides of the two rotating tubes (44).

2. The wear resistance testing device for raised road signs according to claim 1, characterized in that: The rotating assembly (5) further comprises a lifting seat (55), a transmission tooth (56) and a spring (58); the lifting seat (55) is slidably connected to the housing (51); the transmission tooth (56) is fixedly connected to the lifting seat (55); and the spring (58) is fixedly connected between the inner wall of the housing (51) and the lifting seat (55).

3. The wear resistance testing device for raised road markers according to claim 2, characterized in that: The rotating assembly (5) further comprises a gear (57), wherein two gears (57) are respectively fixedly connected to the two rotating tubes (44).

4. The wear resistance testing device for raised road markers according to claim 1, characterized in that: The liquid seepage component (6) further comprises a rotating shaft (63) and a liquid seepage hole (64); the two rotating shafts (63) are respectively rotatably connected to the inside of the two cavities (61); and the two liquid seepage holes (64) are respectively opened on the two rotating shafts (63).

5. The wear resistance testing device for raised road markers according to claim 4, characterized in that: The seepage component (6) further comprises a pawl (65) and a ratchet (66), wherein the two pawls (65) are respectively arranged on the two rotating tubes (44), and the two ratchet wheels (66) are respectively fixedly connected to the two rotating shafts (63).

6. The wear resistance testing device for raised road markers according to claim 5, characterized in that: The seepage component (6) further comprises a threaded plug (62), and two of the threaded plugs (62) are threadedly connected to the lifting column (43).

7. The wear resistance testing device for raised road markers according to claim 2, characterized in that: The cross section of the prism (54) is square, and the lifting column (43) is slidably connected to the lifting seat (55).

8. The wear resistance testing device for raised road markers according to claim 5, characterized in that: The two rotating shafts (63) respectively divide the two cavities (61), and the two ratchet pawls (65) and the two ratchet wheels (66) are arranged in different directions.

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