Vehicle speed testing device for moped

Abstract

The utility model discloses a moped speed testing device which comprises a hydraulic support frame which comprises two side-by-side hydraulic supports, the hydraulic support frame comprises a ground beam, the ground beam can be upwards connected with a plurality of hydraulic support rods with telescopic lengths, the other ends of the hydraulic support rods on each ground beam are jointly connected with a support top beam, and the support top beam is connected with a hydraulic cylinder. An anti-torsion connecting rod is hinged between the ground beam and the supporting top beam; the vehicle speed test bench comprises two transmission gear sets, the two transmission gear sets are jointly meshed on the two sides of the inner circumference of a chain plate ring belt with the upper surface and the lower surface being horizontal, the transmission gear sets are connected with motors and are in transmission connection with the inner circumference of the chain plate ring belt, and the motors drive the transmission gear sets to rotate so that the chain plate ring belt can rotate in the circumferential direction. Two test bed side plates are connected between the two transmission gear sets, and the test bed side plates are connected with the supporting top beam; a walking device of the moped is naturally placed on the chain plate ring belt, the moped chassis speed testing device can be used for testing the speed of the moped chassis under various load and road environments, and the field is saved.

Description

Technical Field

[0001] The utility model relates to the field of vehicle testing equipment, and more specifically, to a power-assisted vehicle speed testing device. Background Art

[0002] In the testing of vehicle equipment such as power-assisted bicycles and flatbed trucks, the most commonly used vehicle speed test method is road testing. However, due to limited space, it is difficult to fully study the speed of functional vehicles such as power-assisted bicycles under different load modes and different slope conditions, and it is also difficult to conduct durability tests on vehicles under different working conditions. In addition to road testing, chassis dynamometers can also be used as testing tools to conduct simulation tests on vehicles under different loads and different climbing conditions when space is limited. However, chassis dynamometers use a roller system to apply a force similar to the climbing condition to the test vehicle to simulate the vehicle climbing condition. This process allows the test vehicle to simulate the climbing condition in a horizontal state, but for power-assisted bicycles and other vehicles that need to measure the climbing ability under load, For vehicles, the horizontal state is not enough to fully simulate the various stress states in the actual climbing situation, and cannot fully simulate the actual state of the vehicle climbing when the load is uneven and the load center of gravity changes in the conventional power-assisted vehicle application scenarios such as high-center-of-gravity loads and water tanks. The patent with authorization announcement number CN107490486B proposes a vehicle road test device. By setting a support frame and a road condition frame group and a drive device thereon, the vehicle can be tested on the road indoors, which greatly reduces the requirements for the site of conventional vehicle tests. However, the invention does not take into account the test of the vehicle under different loads and different slopes. Therefore, it is necessary to specially design a power-assisted vehicle test device to meet the test research of vehicle speed under different working conditions. Utility Model Content

[0003] One purpose of the utility model is to provide a power-assisted bicycle speed testing device, which can meet the speed test of the power-assisted bicycle under different loads and different slopes.

[0004] In order to achieve these purposes and other advantages according to the utility model, according to one aspect of the utility model, the utility model provides a power-assisted bicycle speed testing device, comprising:

[0005] A hydraulic support frame, comprising two hydraulic supports arranged side by side, wherein the hydraulic supports comprise a ground beam, the ground beam being rotatably connected to the ends of a plurality of hydraulic support rods of telescopic length, the other ends of the hydraulic support rods on each ground beam being commonly connected to a supporting top beam, and an anti-torsion connecting rod being commonly hinged between the ground beam and the supporting top beam;

[0006] The vehicle speed test bench comprises two transmission gear sets, a chain plate ring belt with horizontal upper and lower surfaces is stretched and hung outside the two transmission gear sets, the transmission gear set is connected to a motor and is in transmission connection with the inner circumference of the chain plate ring belt, the motor drives the transmission gear set to rotate so that the chain plate ring belt rotates in a circumferential direction, two test bench side plates are connected between the two transmission gear sets, and the test bench side plates are connected to the supporting top beam;

[0007] Preferably, a plurality of side plate connecting beams are commonly connected between the two test bench side plates, the side plate connecting beams are located within the circle formed by the chain plate ring belt, and a test bench support beam is connected to the other side wall of the test bench side plate, and the test bench support beam is connected to the support top beam.

[0008] Preferably, two supporting roller beams are connected to the side plate connecting beam, and the two supporting roller beams are rotatably connected to a plurality of supporting rollers at intervals, and the supporting rollers are perpendicular to the circumference of the chain plate ring belt and support the chain plate ring belt on the inner circumference of the chain plate ring belt.

[0009] Preferably, the upper surfaces of the two test bench support beams are commonly connected to two vehicle stop beams, the vehicle stop beams are circumferentially perpendicular to the chain plate ring belt and are higher than the chain plate ring belt, and the power-assisted vehicle is located between the two vehicle stop beams.

[0010] Preferably, the upper surfaces of the two test bench support beams are commonly connected to two vehicle stop beams, the vehicle stop beams are circumferentially perpendicular to the chain plate ring belt and are higher than the chain plate ring belt, and the power-assisted vehicle is located between the two vehicle stop beams.

[0011] Preferably, the two vehicle stop beams are commonly connected to two second vehicle stop beams, the second vehicle stop beams are parallel to the circumference of the chain plate ring belt, and the second vehicle stop beams are rotatably connected to a plurality of limiting guide wheels at intervals along the length direction, and the side walls of the limiting guide wheels fit the side surfaces of the power-assisted vehicle.

[0012] Preferably, the opposite side walls of the two vehicle guard beams are provided with a plurality of elastic anti-collision devices.

[0013] Preferably, a plurality of displacement sensors are installed on the opposite side walls of the two vehicle guard beams, and are connected to the power-assisted vehicle signals.

[0014] Preferably, the chain plate endless belt comprises a plurality of chain plates connected end to end in a front-to-rear manner, and a friction layer is detachably provided on the surface of the chain plates.

[0015] The utility model at least has the following beneficial effects:

[0016] The hydraulic support frame adopted in the utility model can drive the vehicle speed test bench thereon to change from a flat and controllable state to a sloped state, and can better simulate the application scenarios of power-assisted vehicles going uphill under various load conditions. The vehicle speed test bench adopted in the utility model can bear a large load and is suitable for vehicles to move forward on it. It has a reasonable structure and can more realistically restore vehicle driving. The measured vehicle speed data is comprehensive and accurate.

[0017] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a working schematic diagram of a power-assisted bicycle speed testing device in a technical solution of the utility model;

[0019] Figure 2 It is a horizontal schematic diagram of a power-assisted bicycle speed test device in a technical solution of the utility model;

[0020] Figure 3 It is a front schematic diagram of a speed test bench of a power-assisted bicycle speed test device in a technical solution of the utility model;

[0021] Figure 4 It is a schematic diagram of the back side of a speed test bench of a power-assisted bicycle speed test device in a technical solution of the utility model;

[0022] Figure 5 It is a disassembly schematic diagram of a speed test bench of a power-assisted bicycle speed test device in a technical solution of the utility model;

[0023] Figure 6 It is a working schematic diagram of the supporting roller shaft and the chain plate endless belt of the power-assisted bicycle speed testing device in one technical solution of the utility model;

[0024] Figure 7 It is a side view of a supporting roller shaft, a chain plate ring belt, and a power-assisted bicycle of a power-assisted bicycle speed testing device in a technical solution of the utility model;

[0025] Figure 8 The utility model is a schematic diagram of a power-assisted bicycle and a speed test bench of a power-assisted bicycle speed test device in a technical solution of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, so that those skilled in the art can implement the invention with reference to the description.

[0027] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0028] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial sources unless otherwise specified; in the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, set, or detachably connected, set, or connected and set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood in specific circumstances. The orientation or position relationship indicated by the terms "transverse", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0029] like Figures 1 to 8 As shown, the utility model provides a power-assisted bicycle speed testing device, comprising:

[0030] A hydraulic support frame 2, which includes two hydraulic supports 20 arranged side by side, wherein the hydraulic supports 20 include a ground beam 24, wherein the ground beam 24 is rotatably connected to the ends of a plurality of hydraulic support rods 22 with telescopic lengths, wherein the other ends of the hydraulic support rods 22 on each ground beam 24 are commonly connected to a support top beam 21, wherein an anti-torsion connecting rod 23 is commonly hinged between the ground beam 24 and the support top beam 21; a vehicle speed test bench 1, which includes two transmission gear sets 103, wherein a chain plate ring belt 102 with horizontal upper and lower surfaces is tautly stretched and hung outside the two transmission gear sets 103, wherein the transmission gear set 103 is connected to a motor 10 and is transmission-connected to the inner circumference of the chain plate ring belt 102, wherein the motor 10 drives the transmission The rotation of the gear set 103 causes the chain plate ring belt 102 to rotate in a circumferential direction. Two test bench side plates 12 are connected between the two transmission gear sets 103, and the test bench side plates 12 are connected to the support top beam 21; the power-assisted vehicle 3, whose walking device is naturally placed on the chain plate ring belt 102, in the present technical scheme, the ground beam 24 can be fixed to the bottom surface of the laboratory by ground anchors or other forms, each hydraulic support 20 includes a plurality of hydraulic support rods 22, and the hydraulic support rods 22 are rotatably connected to the support top beam 21 by pins. The hydraulic support rods 22 on the same hydraulic support 20 can adjust the telescopic length so that the support top beam 21 is adjusted from a horizontal state to an inclined state, thereby making it The vehicle speed test bench 1 on the vehicle speed test bench 1 is turned from horizontal to sloped. The anti-torsion link 23 can adjust the height and bend itself to adapt to the changes of the supporting top beam 21. The anti-torsion link 23 ensures the integrity and stability of the hydraulic support 20. The chain plate ring belt 102 has a good load-bearing capacity. The two sides of the chain plate ring belt 102 are chain devices 101, which are meshed with the transmission gear set 103 and can be driven by the axial rotation of the transmission gear set 103. The motor 10 is started and the speed is adjusted by a signal instruction. One or more motors 10 can be set. The motor 10 drives the transmission gear set 103 connected to it to rotate so that the chain plate ring belt 102 rotates in a circumferential direction. The power-assisted vehicle 3 is equipped with a remote control. The vehicle chassis of the control device can be fixed with a counterweight 30 to simulate the working conditions of the power-assisted vehicle 3 under various loads. The counterweight 30 can be evenly installed on the power-assisted vehicle 3. The counterweight 30 can also be stacked in layers to simulate the uneven load conditions of the power-assisted vehicle 3. The counterweight 30 can be a solid component or a container such as a water tank. The power-assisted vehicle 3 is provided with a speed sensor. The motor 10 can adjust the speed of the chain plate endless belt 102 to circulate according to the speed of the power-assisted vehicle 3. The motor 10 can drive the chain plate endless belt 102 to circulate for a long time. The power-assisted vehicle 3 can perform various tests on the chain plate endless belt 102 in full accordance with the test methods required by the relevant specifications.

[0031] In the present technical solution, the power-assisted vehicle 3 can travel to the maximum speed on the vehicle speed test bench 1 and then maintain a constant speed for a long time. The speed data provided is more comprehensive and accurate. The hydraulic support frame 2 can drive the vehicle speed test bench 1 to rise to simulate different slopes, thereby accurately testing and obtaining the driving data of the power-assisted vehicle 3 under different loading conditions and different slopes. Optionally, when the power-assisted vehicle 3 is a two-wheeled vehicle, an additional bracket can be added to assist the driving of the power-assisted vehicle 3, which can better perform speed tests on the power-assisted vehicle 3 at various slopes.

[0032] In another technical solution, a plurality of side plate connecting beams 121 are commonly connected between the two test bench side plates 12, and the side plate connecting beams 121 are located within the circumference formed by the chain plate ring belt 102. A test bench support beam 11 is connected to the other side wall of the test bench side plate 12, and the test bench support beam 11 is connected to the support top beam 21. In this technical solution, the test bench support beam 11 and the support top beam 21 can be detachably connected by bolts or the like, and the side plate connecting beam 121 improves the integrity and stability of the vehicle speed test bench 1.

[0033] In another technical solution, two supporting roller beams 122 are connected to the side plate connecting beam 121, and the two supporting roller beams 122 are rotatably connected to a plurality of supporting rollers 142 at intervals. The supporting rollers 142 are perpendicular to the circumference of the chain plate ring belt 102 and support the chain plate ring belt 102 on the inner circumference of the chain plate ring belt 102. In this technical solution, a plurality of groups of roller fixing blocks 141 opposite to each other are fixed at intervals on the upper surface of the supporting roller beam 122, and a supporting roller 142 is arranged in front of each group of roller fixing blocks. The supporting roller 142 can rotate along its own axial direction, contact the inner circumference of the chain plate ring belt 102 and rotate with the cyclic rotation of the chain plate ring belt 102, and the supporting roller 142 can effectively prevent the chain plate ring belt 102 from being deformed or deflected due to the load of the power-assisted vehicle 3.

[0034] In another technical solution, the upper surfaces of the two test bench support beams 11 are commonly connected with two vehicle stop beams 13, the vehicle stop beams 13 are circumferentially perpendicular to the chain plate ring belt 102 and are higher than the chain plate ring belt 102, and the power-assisted vehicle 3 is located between the two vehicle stop beams 13. In this technical solution, the vehicle stop beam 13 includes two vehicle stop beam bases 131, and the vehicle stop beam bases 131 are detachably connected to the test bench support beams 11 by bolts, and a limiting beam 132 is commonly connected between the two vehicle stop beam bases 131. The power-assisted vehicle 3 is located between the two vehicle stop beams 13, and the vehicle stop beam 13 can prevent the power-assisted vehicle 3 from rushing out of the vehicle speed test bench 1 when the power-assisted vehicle 3 suddenly accelerates or decelerates.

[0035] In another technical solution, the two vehicle stop beams 13 are commonly connected with two second vehicle stop beams 15, the second vehicle stop beams 15 are parallel to the circumference of the chain plate ring belt 102, and the second vehicle stop beams 15 are rotatably connected with a plurality of limiting guide wheels 150 at intervals along the length direction, and the side walls of the limiting guide wheels 150 are in contact with the side surfaces of the power-assisted vehicle 3. The limiting guide wheels 150 can limit the displacement of the power-assisted vehicle 3 to both sides of the driving direction under any circumstances, and have almost no effect on the vehicle speed of the power-assisted vehicle 3 during testing.

[0036] In another technical solution, a plurality of elastic anti-collision devices 31 are installed on the opposite side walls of the two vehicle guard beams 13. The elastic anti-collision devices 31 may be elastic devices such as springs or rubber sticks, so as to avoid damage to the power-assisted vehicle 3 and other equipment when colliding with the vehicle guard beam 13.

[0037] In another technical solution, a plurality of displacement sensors 32 are installed on the opposite side walls of the two vehicle guard beams 13, which are connected to the signal of the power-assisted vehicle 3. The displacement sensors 32 may be infrared devices or wire-pulling recording devices. The displacement sensors 32 may record the relative displacement between the power-assisted vehicle 3 and the vehicle guard beams 13 and feed back the collected data to the monitoring device in real time, which can effectively reflect the speed fluctuations of the power-assisted vehicle 3 during the test of uniform speed driving.

[0038] In another technical solution, the chain plate ring belt 102 includes a plurality of chain plates 1020 connected end to end in a front and rear manner, and a friction layer is detachably provided on the surface of the chain plate 1020. The chain plate 1020 is connected to the front and rear chain plates of the same specification by means of a pin shaft or the like. The surface of the chain plate 1020 can fit the friction layer with different friction forces so as to test the driving conditions of the power-assisted vehicle 3 in different ground environments.

[0039] The number of components and processing scale described here are used to simplify the description of the utility model. Applications, modifications and variations of the utility model are obvious to those skilled in the art.

[0040] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A power-assisted bicycle speed test device, characterized in that: include: A hydraulic support frame, comprising two hydraulic supports arranged side by side, wherein the hydraulic supports comprise a ground beam, the ground beam being rotatably connected to the ends of a plurality of hydraulic support rods of telescopic length, the other ends of the hydraulic support rods on each ground beam being commonly connected to a supporting top beam, and an anti-torsion connecting rod being commonly hinged between the ground beam and the supporting top beam; The vehicle speed test bench comprises two transmission gear sets, a chain plate ring belt with horizontal upper and lower surfaces is stretched and hung outside the two transmission gear sets, the transmission gear set is connected to a motor and is in transmission connection with the inner circumference of the chain plate ring belt, the motor drives the transmission gear set to rotate so that the chain plate ring belt rotates in a circumferential direction, two test bench side plates are connected between the two transmission gear sets, and the test bench side plates are connected to the supporting top beam; The power-assisted bicycle, its running device is naturally placed on the chain plate endless belt.

2. The power-assisted bicycle speed testing device according to claim 1, characterized in that: A plurality of side plate connecting beams are commonly connected between the two test bench side plates, and the side plate connecting beams are located within the circumference formed by the chain plate ring belt. A test bench support beam is connected to the other side wall of the test bench side plate, and the test bench support beam is connected to the support top beam.

3. The power-assisted bicycle speed testing device according to claim 2, characterized in that: Two supporting roller beams are connected to the side plate connecting beam, and a plurality of supporting rollers are rotatably connected to the two supporting roller beams at intervals. The supporting rollers are perpendicular to the circumference of the chain plate ring belt and support the chain plate ring belt on the inner circumference of the chain plate ring belt.

4. The power-assisted bicycle speed testing device according to claim 3, characterized in that: The upper surfaces of the two test bench support beams are commonly connected with two vehicle stop beams, the vehicle stop beams are circumferentially perpendicular to the chain plate ring belt and are higher than the chain plate ring belt, and the power-assisted vehicle is located between the two vehicle stop beams.

5. The power-assisted bicycle speed testing device according to claim 4, characterized in that: The two vehicle stop beams are commonly connected to two second vehicle stop beams, the second vehicle stop beams are parallel to the circumference of the chain plate ring belt, and the second vehicle stop beams are rotatably connected to multiple limiting guide wheels at intervals along the length direction, and the side walls of the limiting guide wheels are in contact with the side surfaces of the power-assisted vehicle.

6. The power-assisted bicycle speed testing device according to claim 5, characterized in that: The side walls opposite to the two vehicle guard beams are provided with a plurality of elastic anti-collision devices.

7. The power-assisted bicycle speed testing device according to claim 6, characterized in that: A plurality of displacement sensors are installed on the opposite side walls of the two vehicle guard beams and are connected with the power-assisted vehicle signals.

8. The power-assisted bicycle speed testing device according to claim 7, characterized in that: The chain plate endless belt comprises a plurality of chain plates connected end to end in a front-to-rear manner, and a friction layer is detachably provided on the surface of the chain plates.

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