Horizontal installation and adjustment instrument for double-wheel type transverse force coefficient tester

Abstract

The utility model relates to the technical field of building quality detection, in particular to a double-wheel horizontal force coefficient tester installation and adjustment levelness instrument, which comprises a suspension assembly, the suspension assembly comprises a height adjusting piece and a connecting beam, the end part of the connecting beam is provided with a connecting plate, and the height adjusting piece is connected with the connecting plate; the wheel assembly is arranged at the end, away from the height adjusting piece, of the connecting beam, the wheel assembly comprises a friction wheel and a distance testing wheel, and the friction wheel and the distance testing wheel are distributed in a triangular shape; the balancing weight is arranged above the friction wheel, and the balancing weight is fixedly connected with the connecting beam; the gradienter is arranged on the balancing weight, the gradienter is used for observing the horizontal state of the whole device, and the gradienter is fixed to the upper portion of the balancing weight through a fixing piece. According to the utility model, the horizontal calibration of the double-wheel type transverse force coefficient tester can be rapidly and accurately realized.

Description

Technical Field

[0001] The utility model relates to the technical field of building quality inspection, in particular to a double-wheel lateral force coefficient tester installation and adjustment level instrument. Background Technique

[0002] The pavement skid resistance coefficient is one of the important indicators for evaluating road safety. At present, a double-wheel lateral force coefficient instrument is used for pavement skid resistance testing. This device needs to be installed at the rear of a vehicle and towed by the vehicle to test the lateral force coefficient of the vehicle in the left-right direction during driving. It sets two friction wheels between the vehicle suspension system and the wheel system, simulates the lateral force of the vehicle during driving by controlling the rotation speed and direction of the friction wheels, and then measures the lateral reaction force of the friction wheels and the rotation speed of the friction wheels through a data acquisition system, and further calculates the lateral force coefficient of the vehicle.

[0003] When the double-wheel lateral force coefficient instrument is connected to the vehicle, the horizontal state needs to be calibrated. Currently, the horizontal state is generally judged by visual inspection. This judgment method has subjective human factors, is not easy to detect problems in time, and affects the accuracy of test data. Moreover, this installation device needs to repeatedly adjust the high and low buckles to calibrate the level. If it is too high or too low, the fixing screws need to be disassembled and reinstalled for high and low adjustment. Due to the large weight of the device, it is inconvenient to lift and move, and the repeated installation is relatively cumbersome, thus affecting work efficiency. Content of the Utility Model

[0004] In order to quickly and accurately achieve the horizontal calibration of the device, the present application provides a double-wheel lateral force coefficient tester installation and adjustment level instrument.

[0005] In order to achieve the above object, the present application adopts the following technical solution:

[0006] A double-wheel lateral force coefficient tester installation and adjustment level instrument, comprising: a suspension assembly, the suspension assembly includes a height adjustment member and a connecting beam, a connecting plate is arranged at the end of the connecting beam, and the height adjustment member is connected to the connecting plate; a wheel assembly, the wheel assembly is arranged at one end of the connecting beam away from the height adjustment member, the wheel assembly includes a friction wheel and a distance test wheel, the friction wheel is arranged on both sides of the suspension assembly, the distance test wheel is arranged behind the friction wheel, and the friction wheel and the distance test wheel are distributed in a triangle; a counterweight block, the counterweight block is arranged above the friction wheel, and the counterweight block is fixedly connected to the connecting beam; a level, the level is arranged on the counterweight block, the level is used to observe the horizontal state of the entire device, and the level is fixed above the counterweight block through a fixing member.

[0007] By adopting the above device, before the tester is connected to the vehicle, lift the connecting plate at the end of the connecting beam and observe the position of the bubble in the spirit level at the same time. When the position of the bubble is centered, it is the connection height between the connecting plate and the vehicle. At this time, keep the height of the connecting beam through the height adjusting member and complete the connection with the vehicle. Compared with the method of manual visual inspection for calibration, the spirit level in this application can complete the horizontal calibration of the tester at one time, effectively improve the calibration accuracy, reduce the calibration error, and improve the work efficiency. The lateral force during vehicle driving is simulated through the wheel assembly, and the counterweight provides a stable test load, making the tester not easy to overturn during driving. During the whole test process, the horizontal state of the device can be observed through the spirit level for timely adjustment.

[0008] Preferably, a connecting shaft is fixedly connected to the end of the connecting beam far away from the connecting plate. There are two friction wheels, and the two friction wheels are hinged to the connecting beam through a hinged rod.

[0009] By adopting the above device, the connecting shaft is used to fix the distance between the connecting beams and ensure the overall stability of the suspension assembly. The two frictions are hinged to the connecting beam through the hinged rod, enabling the friction wheels to turn more flexibly and simulate the lateral force changes under different driving conditions.

[0010] Preferably, a tension sensor is arranged on the connecting beam, and the tension sensor is electrically connected to the friction wheel.

[0011] By adopting the above device, data is collected through the tension sensor to monitor the change of tension in real time, and the dynamic change of the lateral force of the vehicle during driving can be analyzed more accurately, improving the accuracy and reliability of the test data.

[0012] Preferably, the height adjusting member includes an adjusting plate. A connecting ring is fixedly connected to the side of the adjusting plate far away from the connecting plate. A plurality of positioning holes are arranged on the adjusting plate, and the adjusting plate is threadedly connected to the connecting plate through the positioning holes.

[0013] By adopting the above device, the height of the tester is adjusted through the adjusting plate. Among them, the connecting ring is used to connect the rear of the vehicle to connect the tester to the vehicle. The plurality of positioning holes on the adjusting plate allow selecting a suitable height according to different test requirements during the test, and the adjusting plate is fixedly connected to the connecting plate through bolts, making the tester keep a horizontal state during the test.

[0014] Preferably, a water spraying assembly is arranged on the connecting plate. The water spraying assembly includes a three-way valve and a water spraying pipe. The three-way valve penetrates the connecting plate. One end of the three-way valve is used to connect the water inlet pipe, and the other two ends are connected to the water spraying pipe.

[0015] Preferably, a fixing rod is fixedly connected to the bottom of the connecting plate. One end of the water spraying pipe away from the three-way valve is connected to the end of the fixing rod and is provided with a nozzle, and the nozzle faces the friction wheel.

[0016] By adopting the above device, by setting the water spraying assembly, the tester can simulate the wheel friction force under wet and slippery road conditions and provide a more realistic test environment for the test.

[0017] Preferably, a ground support member is arranged at the bottom of the fixing rod. The ground support member includes a support rod and a rotating wheel. The support rod is detachably connected to the fixing rod, and the rotating wheel is connected to the side of the support rod away from the fixing rod.

[0018] By adopting the above device, before and after the tester conducts the test, the support rod can support the tester to maintain the stability of the tester, and the rotating wheel enables the tester to have the ability to change directions.

[0019] Preferably, a warning member is arranged on the counterweight block, and the warning member is used to emit a warning signal.

[0020] By adopting the above device, the signal emitted by the warning member can improve the safety of the test process.

[0021] The present application has the following beneficial effects:

[0022] 1. In the present application, before the tester is connected to the vehicle, by lifting the connecting plate at the end of the connecting beam and observing the position of the bubble in the spirit level at the same time, when the position of the bubble is centered, it is the connection height between the connecting plate and the vehicle. At this time, the height of the connecting beam is maintained by the height adjusting member and is connected to the vehicle. Compared with the method of manual visual calibration, the spirit level in the present application can complete the horizontal calibration of the tester at one time, effectively improve the calibration accuracy, reduce the error of manual calibration, and improve the work efficiency. The lateral force during vehicle driving is simulated by the wheel assembly, and the counterweight block provides a stable test load, so that the tester is not prone to overturning during driving. During the whole test process, the horizontal state of the equipment can be observed through the spirit level for timely adjustment.

[0023] 2. In the present application, the connecting shaft is used to fix the distance between the connecting beams and ensure the overall stability of the suspension assembly. The two frictions are hinged to the connecting beam through the hinge rod, so that the friction wheel can turn more flexibly and simulate the lateral force changes under different driving conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall structural schematic diagram of the double-wheel type lateral force coefficient tester for installing and adjusting the horizontal instrument in the embodiment of the present utility model;

[0025] Figure 2 It is a front - side schematic diagram of the installation and adjustment level instrument of the dual - wheel lateral force coefficient tester in an embodiment of the present utility model;

[0026] Figure 3 It is a rear - side schematic diagram of the installation and adjustment level instrument of the dual - wheel lateral force coefficient tester in an embodiment of the present utility model.

[0027] Explanation of reference numerals:

[0028] 1. Suspension assembly; 11. Height adjustment member; 111. Adjusting plate; 111a. Positioning hole; 112. Connecting ring; 12. Connecting beam; 121. Connecting plate; 122. Connecting shaft; 123. Fixed rod; 124. Ground - supporting member; 124a. Support rod; 124b. Rotating wheel; 2. Wheel assembly; 21. Friction wheel; 211. Hinge rod; 22. Distance - testing wheel; 3. Counterweight; 4. Level; 5. Tensile sensor; 6. Water - spraying assembly; 61. Three - way valve; 62. Water - spraying pipe; 63. Nozzle; 7. Warning member. Detailed implementation mode

[0029] The following further elaborates on this application in conjunction with the attached Figures 1-3 drawings.

[0030] Embodiment:

[0031] The installation and adjustment level instrument of the dual - wheel lateral force coefficient tester, as Figures 1-2 shown, includes a suspension assembly 1, a wheel assembly 2, a counterweight 3, and a level 4. Among them, the suspension assembly 1 includes a height adjustment member 11 and a connecting beam 12. A connecting plate 121 is provided at the end of the connecting beam 12, and the height adjustment member 11 is connected to the connecting plate 121. The specific structure of the height adjustment member 11 includes an adjusting plate 111. A connecting ring 112 is fixedly connected to the side of the adjusting plate 111 away from the connecting plate 121 for connecting to the rear of the vehicle. Multiple positioning holes 111a are provided on the adjusting plate 111, and by screwing the positioning holes 111a with the connecting plate 121, rapid height adjustment is achieved, improving work efficiency.

[0032] As Figures 1-3As shown in the figure, in this embodiment, the wheel assembly 2 is located at one end of the connecting beam 12 away from the height adjusting member 11. The wheel assembly 2 includes two friction wheels 21 and a distance measuring wheel 22. Among them, the friction wheels 21 are located on both sides of the suspension assembly 1. Specifically, a connecting shaft 122 is fixedly connected to one end of the connecting beam 12 away from the connecting plate 121. The connecting shaft 122 is supported between the connecting beams 12 to maintain the stability of the entire testing instrument. The two friction wheels 21 are hinged to the connecting beam 12 through hinge rods 211 to achieve flexible steering and facilitate adjusting the angle between the two friction wheels 21. The distance measuring wheel 22 is arranged behind the friction wheels 21, and the friction wheels 21 and the distance measuring wheel 22 are distributed in a triangular shape to ensure the stability of the device and the accuracy of the test, and record the traveling distance of the tester.

[0033] As Figures 1-3 shown in the figure, in this embodiment, the counterweight 3 is arranged above the friction wheel 21. The counterweight 3 is fixedly connected to the connecting beam 12 and is used to balance the weight distribution of the device. The counterweight 3 provides a stable test load, so that the tester is not prone to tipping during driving and ensures the accuracy of the test. A warning member 7 is also arranged on the counterweight 3. The warning member 7 can be an audible and visual alarm or other types of sensors, and is used to emit a warning signal when an abnormal situation occurs in the device to remind the operator to deal with it in time.

[0034] As Figure 1 shown in the figure, in this embodiment, the level 4 is arranged on the counterweight 3 and is used to observe the horizontal state of the entire device. The level 4 can be fixed above the counterweight 3 through a fixing member to ensure the stability and accuracy of the level 4. Through the real-time monitoring of the level 4, the operator can quickly adjust the device to a horizontal state to ensure the accuracy of the test.

[0035] In addition, as Figures 1-3 shown in the figure, a tension sensor 5 is also arranged on the connecting beam 12. The tension sensor 5 is electrically connected to the friction wheel 21 and is used to monitor the tension change in real time and transmit the data to the data acquisition system for analysis and processing, which helps the operator understand the real-time working state of the device and make corresponding adjustments and optimizations.

[0036] As Figures 1-3As shown in the figure, in order for the tester to simulate the wheel friction force under wet and slippery road conditions and provide a more realistic test environment for the test, the tester further includes a water spraying assembly 6, and the water spraying assembly 6 is arranged on the connecting plate 121. The water spraying assembly 6 includes a three-way valve 61, a water spraying pipe 62 and a nozzle 63. Among them, the three-way valve 61 penetrates through the connecting plate 121 and is connected to the water inlet pipe, and is used to control the on-off and flow direction of the water flow. The water spraying pipe 62 is connected to the three-way valve 61 and extends near the friction wheel 21. A fixing rod 123 is arranged at the bottom of the connecting plate 121, and one end of the water spraying pipe 62 far from the three-way valve 61 is connected to the end of the fixing rod 123. The nozzle 63 is installed at the end of the water spraying pipe 62 and sprays water towards the friction wheel 21 to simulate the test environment under different road conditions. By adjusting the flow rate and angle of the water spray, the road surface conditions under different rainfall intensities can be simulated, so as to more comprehensively evaluate the performance of the equipment.

[0037] As Figures 1-3 shown, a ground support member 124 is further arranged at the bottom of the fixing rod 123. The ground support member 124 includes a support rod 124a and a rotating wheel 124b. Among them, the support rod 124a is detachably connected to the fixing rod 123 through bolts and nuts, which is convenient for installation and disassembly. The rotating wheel 124b is connected to the side of the support rod 124a far from the fixing rod 123, and can provide stable support and reduce the frictional resistance during the movement of the equipment. Before the tester is connected to the vehicle, the support rod 124a supports the trailer, and the rotating wheel 124b and the two friction wheels 21 are distributed in a triangle, which is beneficial to improving the support stability of the tester.

[0038] Working principle: During the test, first remove the support rod 124a supported at the bottom of the fixing rod 123, lift the connecting plate 121 to adjust the horizontal state of the tester, and at the same time observe the situation of the bubble in the level gauge 4. When the bubble is in the middle position of the level gauge 4, it is the connection height between the connecting plate 121 and the vehicle. At this time, keep the height of the connecting beam 12 through the height adjusting member 11 and complete the connection with the vehicle.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The two-wheel transverse force coefficient tester installs and adjusts the leveling instrument, characterized in that, Comprising: A suspension assembly (1), the suspension assembly (1) includes a height adjuster (11) and a connecting beam (12), a connecting plate (121) is provided at the end of the connecting beam (12), and the height adjuster (11) is connected to the connecting plate (121); A wheel assembly (2), the wheel assembly (2) is arranged at one end of the connecting beam (12) away from the height adjuster (11), the wheel assembly (2) includes a friction wheel (21) and a distance measuring wheel (22), the friction wheels (21) are arranged on both sides of the suspension assembly (1), the distance measuring wheel (22) is arranged behind the friction wheel (21), and the friction wheels (21) and the distance measuring wheel (22) are distributed in a triangle; A counterweight (3), the counterweight (3) is arranged above the friction wheel (21), and the counterweight (3) is fixedly connected to the connecting beam (12); A level (4), the level (4) is arranged on the counterweight (3), the level (4) is used to observe the horizontal state of the entire device, and the level (4) is fixed above the counterweight (3) through a fixing member.

2. The two-wheel type lateral friction coefficient tester installation and adjustment level instrument according to claim 1, characterized in that, A connecting shaft (122) is fixedly connected to one end of the connecting beam (12) away from the connecting plate (121), there are two friction wheels (21), and the two friction wheels (21) are hinged to the connecting beam (12) through a hinge rod (211).

3. The two-wheel type lateral friction coefficient tester installation and adjustment level instrument according to claim 2, characterized in that, A tension sensor (5) is arranged on the connecting beam (12), and the tension sensor (5) is electrically connected to the friction wheel (21).

4. The two-wheel transverse force coefficient tester installation and adjustment level instrument according to claim 1, characterized in that, The height adjuster (11) includes an adjusting plate (111), a connecting ring (112) is fixedly connected to the side of the adjusting plate (111) away from the connecting plate (121), a plurality of positioning holes (111a) are arranged on the adjusting plate (111), and the adjusting plate (111) is threadedly connected to the connecting plate (121) through the positioning holes (111a).

5. The two-wheel type transverse force coefficient tester installation and adjustment level instrument according to claim 1, characterized in that, A water spraying assembly (6) is arranged on the connecting plate (121), the water spraying assembly (6) includes a three-way valve (61) and a water spraying pipe (62), the three-way valve (61) penetrates through the connecting plate (121), one end of the three-way valve (61) is used to connect to a water inlet pipe, and the other two ends are connected to the water spraying pipe (62).

6. The two-wheel type lateral friction coefficient tester installation and adjustment level instrument according to claim 5, characterized in that, A fixing rod (123) is fixedly connected to the bottom of the connecting plate (121), one end of the water spraying pipe (62) away from the three-way valve (61) is connected to the end of the fixing rod (123) and is connected with a spray head (63), and the spray head (63) faces the friction wheel (21).

7. The two-wheel type lateral friction coefficient tester installation and adjustment level instrument according to claim 6, characterized in that, A ground support member (124) is arranged at the bottom of the fixing rod (123), the ground support member (124) includes a support rod (124a) and a rotating wheel (124b), the support rod (124a) is detachably connected to the fixing rod (123), and the rotating wheel (124b) is connected to the side of the support rod (124a) away from the fixing rod (123).

8. The two-wheel type lateral friction coefficient tester installation and adjustment level instrument according to claim 1, characterized in that, A warning member (7) is arranged on the counterweight (3), and the warning member (7) is used to emit a warning signal.

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