CN216050732U

CN216050732U - Vehicle speed limit tester

Info

Publication number: CN216050732U
Application number: CN202122666020.0U
Authority: CN
Inventors: 张铭增; 李树森; 桑嘉坡; 李明元; 王月超; 郑培东; 李治强
Original assignee: Delaine Tianjin Technology Co ltd
Current assignee: Delaine Tianjin Technology Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-03-15
Anticipated expiration: 2031-11-02

Abstract

The utility model belongs to the technical field of vehicle speed limit detection, and particularly discloses a vehicle speed limit tester, which comprises a rack, a test platform fixedly arranged at the top end of the rack and a slope rack spliced on one side of the rack, wherein a front wheel fixing mechanism, a rear wheel fixing mechanism and a saddle fixing mechanism are arranged on the test platform and are respectively used for fixing a front wheel, a rear wheel and a middle position of a vehicle, and the front wheel fixing mechanism, the rear wheel fixing mechanism and the saddle fixing mechanism are adjustable structures, so that the vehicle fixing requirements of different types and sizes of vehicles can be met, the application range is wide, a vehicle speed measuring mechanism with adjustable height is combined, a variable frequency motor is adopted for driving, an output shaft is connected with a vehicle driving shaft, and under the driving of the variable frequency motor, the actual conditions of an electric bicycle and an electric bicycle during daily running are simulated, and the electric bicycle, the vehicle speed limit tester and the electric bicycle are measured, The current, the voltage and the speed of the electric moped during running.

Description

Vehicle speed limit tester

Technical Field

The utility model relates to the technical field of vehicle speed limit detection, in particular to a vehicle speed limit tester.

Background

The electric bicycle and the electric moped both adopt the battery as a power source, the average riding currents of different electric vehicles are different, the continuous discharging time of the battery is different, the continuous mileage of the electric vehicle is different, and the efficiency of the motor during the operation at rated power is the highest, so whether the highest speed of the electric vehicle is kept and the highest acceleration is realized under the condition of not considering other external factors, and the riding mileage of the electric vehicle is the farthest.

In order to simulate the actual conditions of electric bicycles and electric mopeds in daily running and measure the current, voltage and speed of the electric bicycles and the electric mopeds in the running process, the technical personnel in the field provide a vehicle speed limit tester to solve the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vehicle speed limit tester to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the vehicle speed limit tester comprises a rack, a test platform fixedly arranged at the top end of the rack and a slope frame spliced on one side of the rack, wherein a front wheel fixing mechanism is fixedly arranged on one side, far away from the slope frame, of the top end of the test platform, a vehicle speed measuring mechanism is fixedly arranged on the other side of the test platform, a rear wheel fixing mechanism is fixedly arranged on one side, close to the edge, of the middle position, and a saddle fixing mechanism is fixedly arranged at the top end of the rear wheel fixing mechanism;

the front wheel fixing mechanism comprises two front wheel supporting frames and a front wheel roller arranged between the two front wheel supporting frames, the front wheel supporting frames are fixedly arranged at the top of the test platform, the front wheel roller is arranged on the inner side of the test platform and positioned between the two front wheel supporting frames, a sliding rail is fixedly connected to the inner side of each front wheel supporting frame in a threaded manner, a sliding block is connected to the sliding rail in a sliding manner, and a front wheel fixing rod is fixedly connected to the inner side of the sliding block in a threaded manner;

the rear wheel fixing mechanism comprises two rear wheel support frames fixed at the top end of the test platform in a threaded manner and a rear wheel roller positioned between the two rear wheel support frames, the rear wheel roller is arranged on the inner side of the test platform, and a rear wheel fixing rod is fixedly connected to the inner side of each rear wheel support frame in a threaded manner;

the vehicle speed measuring mechanism comprises an installation frame which is connected to the test platform in a sliding manner, a motor lifting seat is fixedly clamped on the inner side of the installation frame, a variable frequency motor which is electrically connected with an external power supply is fixedly connected to the top end of the motor lifting seat in a threaded manner, the output end of the variable frequency motor is connected with a pedal swinging disc in a transmission manner, and a motor height adjusting assembly for driving the motor lifting seat to lift up and down is fixedly arranged on the inner side of one end of the installation frame;

saddle fixed establishment including set firmly install the support column of frame top one side and with the support column combination be "L" type structure and with the support column rotates the hoist and mount arm of connecting, the terminal spiro union of hoist and mount arm is fixed with the cylinder that is connected with outside air supply, the output of cylinder sets firmly the pressure head and draws the pressure sensor.

As a still further scheme of the utility model: the slope frame is of a right-angled trapezoid structure, and the splicing position and the test platform are located on the same plane.

As a still further scheme of the utility model: the test platform is characterized in that a front wheel sliding groove used for adjusting the distance between the two front wheel supporting frames, a rear wheel sliding groove used for adjusting the distance between the rear wheel roller and the front wheel supporting frames, a front wheel rolling groove used for accommodating the front wheel roller, a rear wheel rolling groove used for accommodating the rear wheel roller and a speed measuring sliding groove used for adjusting the positions of the rear wheel fixing mechanism and the saddle fixing mechanism in a left-right mode are formed in the inner side of the test platform.

As a still further scheme of the utility model: the quantity of front wheel gyro wheel with the rear wheel gyro wheel is two, two there is the clearance between front wheel gyro wheel with the rear wheel gyro wheel.

As a still further scheme of the utility model: the front wheel fixing rod and the rear wheel fixing rod are fixedly connected with an external lead screw hand wheel.

As a still further scheme of the utility model: and a plurality of screw holes with equal intervals are formed in the rear wheel supporting frame.

As a still further scheme of the utility model: the bottom of rear wheel spout is seted up the spiral shell groove that a plurality of equidistance distributes, the bottom of rear wheel support frame pass through outside bolt with the spiral shell groove spiro union is fixed.

Compared with the prior art, the utility model has the beneficial effects that:

the testing platform is provided with a front wheel fixing mechanism, a rear wheel fixing mechanism and a saddle fixing mechanism which are respectively used for fixing a front wheel of a vehicle, a rear wheel and a middle position, and the front wheel fixing mechanism, the rear wheel fixing mechanism and the saddle fixing mechanism are adjustable structures and can meet the fixing requirements of vehicles of different models and sizes.

Drawings

FIG. 1 is a schematic axial view of a vehicle speed limit tester;

FIG. 2 is a schematic view of the front view structure of the vehicle speed limit tester;

fig. 3 is a schematic top sectional view of the table top of the vehicle speed limit tester.

In the figure: 1. a frame; 11. a test platform; 111. a front wheel chute; 112. a rear wheel chute; 113. rolling grooves of the rear wheels; 114. rolling grooves of the front wheels; 115. a speed measuring chute; 12. a ramp frame; 2. a front wheel fixing mechanism; 21. a front wheel roller; 22. a front wheel support frame; 23. a slide rail; 24. a slider; 25. a front wheel fixing rod; 3. a rear wheel fixing mechanism; 31. a rear wheel roller; 32. a rear wheel support frame; 33. a rear wheel fixing rod; 4. a saddle fixing mechanism; 41. a support pillar; 42. hoisting the arm; 43. a cylinder; 44. a pressure head; 45. a tension and compression sensor; 5. a vehicle speed measuring mechanism; 51. a mounting frame; 511. a chute; 52. a motor lifting seat; 53. a variable frequency motor; 54. shaking the pedal plate; 55. motor height adjustment subassembly.

Detailed Description

Referring to fig. 1 to 3, in the embodiment of the present invention, the vehicle speed limit tester includes a frame 1, a front wheel fixing mechanism 2, a rear wheel fixing mechanism 3, a saddle fixing mechanism 4, and a vehicle speed measuring mechanism 5.

The top end of the rack 1 is fixedly provided with a test platform 11, one side of the test platform 11 is spliced with a slope frame 12 with a right-angled trapezoid structure, and the splicing positions of the test platform 11 and the slope frame 12 are positioned on the same plane; so that the electric bicycle or the electric moped can smoothly and conveniently push the test platform 11 from the slope frame 12.

Furthermore, one side of the top end of the test platform 11, which is far away from the slope frame 12, is fixedly provided with a front wheel fixing mechanism 2, the other side is fixedly provided with a vehicle speed measuring mechanism 5, one side of the middle position, which is close to the edge, is fixedly provided with a rear wheel fixing mechanism 3, and the top end of the rear wheel fixing mechanism 3 is fixedly provided with a saddle fixing mechanism 4.

Specifically, front wheel fixed establishment 2 includes two front wheel support frames 22 and sets up front wheel gyro wheel 21 between front wheel support frame 22, and front wheel support frame 22 sets firmly at test platform 11's top, and front wheel gyro wheel 21 sets up in test platform 11's inboard, is located between two front wheel support frames 22, and the inboard spiro union of front wheel support frame 22 is fixed with slide rail 23, and sliding connection has slider 24 on slide rail 23, and the inboard spiro union of slider 24 is fixed with front wheel dead lever 25.

The rear wheel fixing mechanism 3 comprises two rear wheel support frames 32 fixed at the top end of the test platform 11 in a threaded manner and a rear wheel roller 31 positioned between the two rear wheel support frames 32, the rear wheel roller 31 is arranged on the inner side of the test platform 11, and a rear wheel fixing rod 33 is fixed on the inner side of each rear wheel support frame 32 in a threaded manner;

the number of the front wheel rollers 21 and the number of the rear wheel rollers 31 are two, and a gap is formed between the two front wheel rollers 21 and the two rear wheel rollers 31.

The vehicle speed measuring mechanism 5 comprises an installation frame 51 which is connected to the test platform 11 in a sliding manner, a motor lifting seat 52 is fixedly clamped on the inner side of the installation frame 51, a variable frequency motor 53 which is electrically connected with an external power supply is fixedly connected to the top end of the motor lifting seat 52 in a threaded manner, the output end of the variable frequency motor 53 is connected with a pedal disc 54 in a transmission manner, and a motor height adjusting assembly 55 which is used for driving the motor lifting seat 52 to lift up and down is fixedly arranged on the inner side of one end of the installation frame 51;

saddle fixed establishment 4 is including setting firmly support column 41 and the lifting arm 42 that is "L" type structure and rotates with support column 41 and be connected of support column 41 of installing frame 51 top one side, and the terminal spiro union of lifting arm 42 is fixed with the cylinder 43 that is connected with the external air source, and the output of cylinder 43 sets firmly pressure head 44 and draws and press sensor 45.

In an alternative embodiment, the inner side of the testing platform 11 is further provided with a front wheel sliding chute 111 for adjusting the distance between the two front wheel supporting frames 22, a rear wheel sliding chute 112 for adjusting the distance between the rear wheel roller 31 and the front wheel supporting frame 22, a front wheel rolling chute 114 for accommodating the front wheel roller 21, a rear wheel rolling chute 113 for accommodating the rear wheel roller 31, and a speed measuring sliding chute 115 for adjusting the positions of the rear wheel fixing mechanism 3 and the saddle fixing mechanism 4 in the left-right direction.

Thus, the electric bicycle or the electric power-assisted vehicle pushes up the test platform 11 from the position of the slope frame 12, places the front wheel at the middle position of the two front wheel rollers 21, adjusts the position of the rear wheel roller 31 at the inner side of the rear wheel rolling groove 113 by utilizing the lead screw principle, enables the rear wheel to be placed at the middle position of the two rear wheel rollers 31, increases the load value of the air cylinder 43 at the moment, enables the pressure head 44 below the air cylinder 43 to be pressed on the saddle of the vehicle, adjusts the front wheel support frame 22, adjusts the upper and lower positions of the front wheel fixing rod 25 on the front wheel support frame 22 up and down, shakes the hand wheel, enables the front wheel fixing rod 25 to tightly prop the front axle of the vehicle from the two sides of the axle of the vehicle, enables the front wheel of the bicycle to be placed at the middle position of the front wheel rollers 21, loosens the fixing bolt of the rear wheel support frame 32, moves the rear wheel support frame 32 back and forth to adjust to the proper position in the rear wheel sliding groove 112, tightens the fixing bolt, moves the rear wheel support frame 32 back and forth to adjust to the proper position in the rear wheel sliding groove 112, the fixing bolt is screwed down, the hand wheel is shaken, the rear wheel fixing rod 33 is tightly propped against the rear shaft of the bicycle from two sides of the rear shaft of the bicycle, the rear wheel of the bicycle is positioned in the middle of the rear wheel roller 31, the front wheel and the rear wheel of the vehicle are fixed, finally, the hand wheel is shaken to adjust the distance between the variable frequency motor 53 and the testing platform 11, the pedal disc 54 is fixedly connected with a transmission chain shaft or a pedal shaft of the bicycle, after the front wheel, the rear wheel, the saddle and the driving piece of the vehicle are connected and fixed with various mechanisms on the testing platform 11, the variable frequency motor 53 is opened at the moment, the variable frequency motor 53 is utilized to drive the vehicle to change the speed, the actual conditions of the electric bicycle and the electric moped in daily running are simulated, and the current, the voltage and the speed of the electric bicycle and the electric moped in the running process are measured.

Specifically, the front wheel fixing rod 25 and the rear wheel fixing rod 33 are both fixedly connected with an external lead screw hand wheel; is convenient for operation and adjustment.

Specifically, a plurality of screw holes with equal intervals are formed in the rear wheel supporting frame 32, the height and the position of the rear wheel fixing rod 33 can be adjusted according to the electric bicycle or the electric bicycle, the rear wheel fixing requirements of the electric bicycles or the electric bicycles with different sizes and models are met, and the application range is wide.

Specifically, the bottom end of the rear wheel sliding groove 112 is provided with a plurality of screw grooves distributed at equal intervals, and the bottom end of the rear wheel supporting frame 32 is fixed with the screw grooves through external bolts in a threaded manner; the device is used for adjusting the position of the rear wheel support frame 32 on the test platform 11, so that the distance between the rear wheel support frame 32 and the front wheel support frame 22 is changed, and the wheel fixing requirements of electric bicycles or electric mopeds with different sizes and models are met.

In the utility model, as shown in fig. 1, a front wheel roller of a front wheel erected in a front wheel fixing mechanism 2 rotates at the inner side of a front wheel chute 111, so that the front wheel can be erected, and the normal rotation of the front wheel during testing is not influenced, and by means of structures such as a slide rail, a slide block 24, a lead screw, a hand wheel and the like, the adjustable distance between a front wheel support frame 22 and a front wheel fixing rod 25 and the adjustable height of the front wheel fixing rod 25 are realized; the positions of a rear wheel roller 31 and a rear wheel support frame 32 in the rear wheel fixing mechanism 3 are adjustable, and the distance and the height of a rear wheel fixing rod 33 are adjustable; the height of the saddle fixing mechanism 4 is adjustable, the angle and the position of the saddle fixing mechanism are adjustable, the position of the vehicle speed measuring mechanism 5 is adjustable, the height of the saddle fixing mechanism is adjustable, the wheel fixing requirements and the testing requirements of electric bicycles or electric mopeds with different sizes and models are met, the application range is wide, the adjustable structure is only provided in the embodiment of the utility model, the existing screw rod transmission, sliding rail sliding and cylinder lifting principles are mostly adopted, so the detailed description is not provided, and the adjusting mode in the utility model is not limited to the adjusting mode or the illustrated mode provided in the embodiment of the utility model.

The working principle of the utility model is as follows: pushing the electric bicycle or the electric moped onto the test platform 11 from the position of the slope frame 12, placing the front wheel at the middle position of the two front wheel rollers 21, adjusting the position of the rear wheel roller 31 at the inner side of the rear wheel rolling groove 113, placing the rear wheel at the middle position of the two rear wheel rollers 31, increasing the load value of the air cylinder 43 at the moment, pressing a pressure head 44 below the air cylinder 43 on a saddle of the bicycle, adjusting the front wheel support frame 22, adjusting the upper and lower positions of the front wheel fixing rod 25 on the front wheel support frame 22 up and down, shaking the hand wheel, tightly pushing the front wheel fixing rod 25 against the front axle of the bicycle from the two sides of the wheel axle of the bicycle, making the front wheel of the bicycle at the middle position of the front wheel roller 21, loosening the fixing bolt of the rear wheel support frame 32, moving the rear wheel support frame 32 back and forth to an appropriate position in the rear wheel sliding groove 112, tightening the fixing bolt, shaking the hand wheel, tightly pushing the rear wheel fixing rod 33 against the rear axle of the rear wheel from the two sides of the rear axle of the bicycle, the rear wheel of the bicycle is positioned in the middle of the rear wheel roller 31 to fix the front wheel and the rear wheel of the vehicle, finally the hand wheel is shaken to adjust the distance between the variable frequency motor 53 and the testing platform 11, the pedal disc 54 is fixedly connected with the transmission chain shaft or the pedal shaft of the vehicle, the front wheel, the rear wheel, the saddle and the driving piece of the vehicle are fixedly connected with all mechanisms on the testing platform 11, at the moment, the variable frequency motor 53 is opened, the variable frequency motor 53 is utilized to drive and change the speed of the vehicle, thereby updating in real time according to the voltage and the current in the simulated driving process of the vehicle, displaying the speed of the vehicle when the speed of the test vehicle in the simulated driving process and the voltage and the current reach the maximum value, and the speed recorded when the current drops to the minimum value, the vehicle speed limit tester designed by the utility model is communicated with an external computer, and can select the front wheel or the rear wheel to drive in the testing process through the control of the external computer, by means of the test platform 11 provided by the utility model, the actual conditions of the electric bicycle and the electric moped in daily running can be simulated, and the current, the voltage and the speed of the electric bicycle and the electric moped in the running process can be measured.

Note that:

1. when the machine is not in use, please turn off the power.

2. All components in the electric control cabinet do not move randomly.

3. The environment is not wet, and the air circulation is good.

4. When the machine is operated, no hand touch is needed, if an accident occurs in the using process, the emergency stop key can be pressed down first, and the whole machine is operated after power is off.

5. When the variable frequency motor is used, the variable frequency motor must be grounded.

Maintenance items

1. No water, alcohol or acetone is required to wipe the device.

2. Ensure the cleanness of the machine body and avoid placing in a place with high humidity.

3. A little engine oil is added to lubricate each movable part.

4. The key part of the panel is clear and free from dust and water.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The vehicle speed limit tester comprises a rack (1), a test platform (11) fixedly arranged at the top end of the rack (1) and a slope frame (12) spliced on one side of the rack (1), and is characterized in that a front wheel fixing mechanism (2) is fixedly arranged on one side, far away from the slope frame (12), of the top end of the test platform (11), a vehicle speed measuring mechanism (5) is fixedly arranged on the other side of the top end of the test platform (11), a rear wheel fixing mechanism (3) is fixedly arranged on one side, close to the edge, of the middle position, and a saddle fixing mechanism (4) is fixedly arranged at the top end of the rear wheel fixing mechanism (3);

the front wheel fixing mechanism (2) comprises two front wheel supporting frames (22) and a front wheel roller (21) arranged between the front wheel supporting frames (22), the front wheel supporting frames (22) are fixedly arranged at the top of the test platform (11), the front wheel roller (21) is arranged on the inner side of the test platform (11) and positioned between the two front wheel supporting frames (22), a sliding rail (23) is fixedly connected to the inner side of each front wheel supporting frame (22) in a threaded manner, a sliding block (24) is connected to each sliding rail (23) in a sliding manner, and a front wheel fixing rod (25) is fixedly connected to the inner side of each sliding block (24) in a threaded manner;

the rear wheel fixing mechanism (3) comprises two rear wheel support frames (32) which are fixed at the top end of the test platform (11) in a threaded manner and a rear wheel roller (31) which is positioned between the two rear wheel support frames (32), the rear wheel roller (31) is arranged on the inner side of the test platform (11), and a rear wheel fixing rod (33) is fixed on the inner side of each rear wheel support frame (32) in a threaded manner;

the vehicle speed measuring mechanism (5) comprises an installation frame (51) which is connected to the test platform (11) in a sliding manner, a motor lifting seat (52) is fixedly clamped on the inner side of the installation frame (51), a variable frequency motor (53) which is electrically connected with an external power supply is fixedly connected to the top end of the motor lifting seat (52) in a threaded manner, the output end of the variable frequency motor (53) is connected with a pedal disc (54) in a transmission manner, and a motor height adjusting component (55) which is used for driving the motor lifting seat (52) to lift up and down is fixedly arranged on the inner side of one end of the installation frame (51);

saddle fixed establishment (4) including set firmly install support column (41) of installation frame (51) top one side and with support column (41) combination be "L" type structure and with support column (41) rotate hoist and mount arm (42) of being connected, the terminal spiro union of hoist and mount arm (42) is fixed with cylinder (43) that are connected with outside air supply, the output of cylinder (43) sets firmly pressure head (44) and draws and press sensor (45).

2. The vehicle speed limit tester of claim 1, wherein the ramp frame (12) is of a right-angled trapezoid structure, and the splicing position and the test platform (11) are located on the same plane.

3. The vehicle speed limit tester according to claim 1, wherein a front wheel sliding groove (111) for adjusting the distance between the two front wheel supporting frames (22), a rear wheel sliding groove (112) for adjusting the distance between the rear wheel roller (31) and the front wheel supporting frame (22), a front wheel rolling groove (114) for accommodating the front wheel roller (21), a rear wheel rolling groove (113) for accommodating the rear wheel roller (31), and a speed measuring sliding groove (115) for adjusting the positions of the rear wheel fixing mechanism (3) and the saddle fixing mechanism (4) in the left-right direction are formed on the inner side of the test platform (11).

4. The vehicle speed limit tester according to claim 1, wherein the number of the front wheel rollers (21) and the number of the rear wheel rollers (31) are two, and a gap is formed between the two front wheel rollers (21) and the two rear wheel rollers (31).

5. The vehicle speed limit tester of claim 1, wherein the front wheel fixing rod (25) and the rear wheel fixing rod (33) are both fixedly connected with an external lead screw hand wheel.

6. The vehicle speed limit tester of claim 1, wherein the rear wheel support frame (32) is provided with a plurality of screw holes with equal intervals.

7. The vehicle speed limit tester of claim 3, wherein the bottom end of the rear wheel sliding groove (112) is provided with a plurality of screw grooves distributed at equal intervals, and the bottom end of the rear wheel supporting frame (32) is fixed with the screw grooves through external bolts in a threaded manner.