Balance car braking performance testing device

Abstract

The utility model discloses a device for testing the braking performance of a balance car, which comprises two free rollers arranged in parallel, the free rollers are arranged on a fixed frame and are rotatably connected with the free rollers through roller supports, and wheels of the balance car are arranged above the two free rollers arranged in parallel and are respectively contacted with the two free rollers arranged in parallel; the mounting seat is arranged on the fixed frame and is positioned between the two free rollers which are arranged in parallel; the first damping piece is provided with a first rack, the second damping piece is provided with a second rack, the first rack is meshed with the upper portion of the gear, and the second rack is meshed with the lower portion of the gear. The driving part and the gear rotate synchronously so as to drive the first damping part and the second damping part to move in the directions of the two parallel free rollers and make contact with the free rollers. According to the technical scheme of the utility model, the resistance simulation of the balance car running on road surfaces with different roughness is realized, and multiple groups of data references are provided for the braking performance test of the balance car.

Description

Technical Field

[0001] The utility model relates to the technical field of electric balancing vehicle testing equipment, in particular to a balancing vehicle braking performance testing device. Background Art

[0002] Balance vehicles include electric balance vehicles, unicycle balance vehicles, and skateboard balance vehicles. As a more popular personal electric means of transportation, balance vehicles are deeply loved by people for their unique operation method. This application mainly discusses electric balance vehicles, which are usually composed of a platform on one or two wheels, wheels, an electric drive system, and a balance control system. The rider can stand on the platform of the balance vehicle and control the forward movement, steering, and stopping of the balance vehicle by fine-tuning the center of gravity of the body. However, in actual testing, it is usually necessary to test the electric balance vehicle on different ground surfaces. The prior art usually uses two free rollers to fix the wheels of the balance vehicle, but the free rollers cannot simulate different road friction parameters, which leads to the problem that the data used to evaluate the braking performance of the balance vehicle is single and the test results are unreliable. Utility Model Content

[0003] The utility model aims to provide a device for testing the braking performance of a balancing vehicle, so as to solve the problems of single test data and unreliable test results.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A braking performance testing device for a balancing vehicle, comprising:

[0006] Fixed frame;

[0007] Two groups of free rollers are arranged in parallel, each group of free rollers includes two free rollers arranged in parallel, the free rollers are mounted on the fixed frame and are rotatably connected with the free rollers through roller supports, and the wheels of the balancing vehicle are placed above the two free rollers arranged in parallel and are in contact with the two free rollers arranged in parallel respectively;

[0008] A damping assembly, comprising a mounting seat, a first damping member, a second damping member, a gear and a driving member; the mounting seat is arranged on the fixing frame and is located between the two parallel free rollers; the first damping member has a first rack, the second damping member has a second rack, the first rack is meshed with the upper part of the gear, and the second rack is meshed with the lower part of the gear;

[0009] Wherein, the first damping member and the second damping member are both installed on the mounting seat, and the driving member rotates synchronously with the gear to drive the first damping member and the second damping member to move toward or away from each other until the first damping member and the second damping member are respectively in contact with the corresponding free rollers.

[0010] In one embodiment, the driving member is a rotating handle, and the rotating handle has an adjustment hole;

[0011] The damping assembly also includes a locking member; the locking member is fixedly connected to the mounting seat through the adjustment hole to achieve the fixation of the rotating handle.

[0012] In one embodiment, the rotating handle is further provided with a mark, and the mark is used to display the damping parameter;

[0013] The mounting seat is provided with an indicator, and the indicator points to a mark which is a damping parameter currently provided by the first damping member and the second damping member to the two parallel free rollers.

[0014] In one embodiment, it further comprises a signal collecting member fixed to the fixing frame, the free roller has a positioning member, and the signal collecting member is used to collect the number of times the positioning member passes.

[0015] In one embodiment, a control frame is further included, which is installed on two pedals of the balancing vehicle to be tested and connected to the fixing member through a flexible rope.

[0016] In one embodiment, a counterweight block is provided above the control frame, and the counterweight block can move along the left and right directions of the balancing vehicle.

[0017] In one embodiment, the control frame has a strip hole, and the counterweight block cooperates with the strip hole and can slide relative to the strip hole. Compared with the prior art, the utility model has the following beneficial effects:

[0018] The technical solution of the utility model realizes the resistance simulation of the balance vehicle traveling on the road surface with different roughness by setting the damping component, and provides multiple sets of data reference for the braking performance test of the balance vehicle, thereby improving the accuracy and reliability of the test data. Specifically, the damping component includes a mounting seat, a first damping member, a second damping member, a gear and a driving member; the mounting seat is arranged on the fixed frame and is located between two parallel free rollers; the first damping member has a first rack, and the second damping member has a second rack, the first rack meshes with the upper part of the gear, and the second rack meshes with the lower part of the gear; wherein the first damping member and the second damping member are both installed on the mounting seat, and the driving member rotates synchronously with the gear to drive the first damping member and the second damping member to move toward or away from each other until the first damping member and the second damping member are respectively in contact with the corresponding free rollers. Furthermore, the first damping member and the second damping member in the technical solution of the utility model are both matched with the gear, so the forward or backward amount of the first damping assembly and the second damping assembly is the same, thereby ensuring that the damping effect on the two parallel free rollers is the same, and more realistically simulating the friction of different road surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 for Figure 1 AA section view in the figure;

[0023] Figure 3 for Figure 1 A three-dimensional view from another angle;

[0024] Illustration: 100, a braking performance test device for a balancing vehicle; 110, a fixed frame; 120, a free roller;

[0025] 130. Damping assembly; 131. Mounting seat; 1311. Indicator; 132. First damping member; 132a. First rack; 133. Second damping member; 133a. Second rack; 134. Gear; 135. Driving member; 135a. Rotating handle; 135a1. Adjusting hole; 136. Locking member; 141. Signal collecting member; 142. Positioning member; 150. Operating frame; 151. Counterweight; 150a. Strip hole; 160. Flexible rope; 200. Balance vehicle. DETAILED DESCRIPTION

[0026] In order to make the technical purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0028] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0029] The embodiment of the utility model provides a braking performance testing device 100 for a balancing vehicle.

[0030] See also Figure 1 , Figure 2 and Figure 3 The balancing vehicle braking performance testing device 100 comprises:

[0031] A fixing frame 110;

[0032] Two groups of free rollers 120 are arranged in parallel, each group of free rollers 120 includes two free rollers 120 arranged in parallel, the free rollers 120 are mounted on the fixing frame 110, and are rotatably connected to the free rollers 120 through roller supports, and the wheels of the balancing vehicle 200 are placed above the two free rollers 120 arranged in parallel, and are in contact with the two free rollers 120 arranged in parallel respectively;

[0033] The damping assembly 130 includes a mounting seat 131, a first damping member 132, a second damping member 133, a gear 134 and a driving member 135; the mounting seat 131 is disposed on the fixing frame 110 and is located between the two parallel free rollers 120; the first damping member 132 has a first rack 132a, the second damping member 133 has a second rack 133a, the first rack 132a is meshed with the upper part of the gear 134, and the second rack 133a is meshed with the lower part of the gear 134;

[0034] The first damping member 132 and the second damping member 133 are both installed on the mounting seat 131, and the driving member 135 rotates synchronously with the gear 133 to drive the first damping member 132 and the second damping member 133 to move toward or away from each other until the first damping member 132 and the second damping member 133 are respectively in contact with the corresponding free roller 120.

[0035] It can be understood that the technical solution of the utility model realizes the resistance simulation of the balance vehicle 200 traveling on roads with different roughness by setting the damping component 130, and provides multiple sets of data references for the braking performance test of the balance vehicle 200, thereby improving the accuracy and reliability of the test data. Specifically, the damping assembly 130 includes a mounting seat 131, a first damping member 132, a second damping member 133, a gear 134 and a driving member 135; the mounting seat 131 is arranged on the fixing frame 110 and is located between two parallel free rollers 120; the first damping member 132 has a first rack 132a, and the second damping member 133 has a second rack 133a, the first rack 132a is meshed with the upper part of the gear 134, and the second rack 133a is meshed with the lower part of the gear 134; the first damping member 132 and the second damping member 133 are both installed on the mounting seat 131, and the driving member 135 rotates synchronously with the gear 133 to drive the first damping member 132 and the second damping member 133 to move toward or away from each other until the first damping member 132 and the second damping member 133 are respectively in contact with the corresponding free rollers 120. Furthermore, the first damping member 132 and the second damping member 133 in the technical solution of the utility model are both matched with the gear 134, so the forward or backward amount of the first damping assembly 130 and the second damping assembly 130 is the same, thereby ensuring that the damping effect on the two parallel free rollers 120 is the same, and more realistically simulating the road resistance.

[0036] It should also be noted that the free roller 120 in this embodiment is cylindrical and can rotate freely relative to the roller support under the action of external force.

[0037] Optionally, the first damping member 132 and the second damping member 133 have rubber pads at one end close to the free roller 120 , and the rubber pads are used to enhance the friction force with the free roller 120 .

[0038] Optionally, the driving member 135 is a servo motor or a rotary cylinder with adjustable angle.

[0039] Please continue reading Figure 1 and Figure 2In a specific embodiment of the present utility model, the driving member 135 is a rotating handle 135a, and the rotating handle 135a has an adjustment hole 135a1;

[0040] The damping assembly 130 further includes a locking member 136 ; the locking member 136 is fixedly connected to the mounting seat 131 through the adjustment hole 135 a 1 to achieve fixation of the rotating handle 135 a .

[0041] It is understandable that when the size of the gear 134 is large enough, the driving member 135 does not need to rotate multiple times. At this time, the driving member 135 is preferably a rotating handle 135a, and the locking member 136 is fixed to the mounting seat 131 through the adjustment hole 135a1 on the rotating handle 135a, and the gear 134 is stopped from rotating.

[0042] In one embodiment, the locking member 136 is fixed by threaded engagement with the mounting seat 131 .

[0043] In a preferred embodiment of the present utility model, the rotating handle 135a is also provided with a mark, and the mark is used to display the damping parameter;

[0044] The mounting seat 131 has an indicator 1311 , and the indicator 1311 points to a mark indicating the damping parameter currently provided by the first damping member 132 and the second damping member to the two parallel free rollers 120 .

[0045] It is understandable that the type of information displayed by the sign can be tile floor, marble floor, cement floor, asphalt floor, etc. icons to identify damping parameters, and can also directly use scales to indicate damping parameters. The specific content of the sign is not limited here. It should also be noted that the indicator 1311 can be a structure that is raised relative to the mounting seat 131 or a recessed structure, and can also be a silk-screen mark or a label. The specific type of the indicator 1311 is not limited here.

[0046] like Figure 1 and Figure 3 As shown, the balancing vehicle braking performance testing device 100 further includes a signal collecting component 141 fixed to the fixing frame 110 , and the free roller 120 has a positioning component 142 , and the signal collecting component 141 is used to collect the number of times the positioning component 142 passes.

[0047] It is understandable that the positioning member 142 may be a convex structure or a concave structure, and the positioning member 142 may also be a signal transmitting device, such as an infrared transmitter, etc. The signal collector is used to receive or collect various signals formed by the positioning member 142, and obtain the acceleration time or deceleration time of the balancing vehicle 200 to realize the collection of test data.

[0048] like Figure 3 As shown, in a specific embodiment, the balancing vehicle braking performance test device 100 further includes a control frame 150, which is mounted on two pedals of the balancing vehicle 200 to be tested and connected to the fixing member via a flexible rope 160. It can be understood that the connection between the control frame 150 and the fixing member via the flexible rope 160 can push the control frame 150 forward or backward under the action of an external force, so as to realize the control of the balancing vehicle 200 and change the motion state of the balancing vehicle 200.

[0049] Furthermore, a counterweight 151 is provided above the control frame 150, and the counterweight 151 can move in the left and right directions of the self-balancing vehicle 200. The left and right movement of the counterweight 151 changes the center of gravity of the self-balancing vehicle 200 in the left and right directions, thereby simulating the turning process of the self-balancing vehicle 200.

[0050] Optionally, the control frame 150 has a strip-shaped hole 150a, and the counterweight block 151 cooperates with the strip-shaped hole 150a and can slide relative to the strip-shaped hole 150a.

[0051] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A braking performance test device for a balancing vehicle, characterized in that: include: Fixed frame; Two groups of free rollers are arranged in parallel, each group of free rollers includes two free rollers arranged in parallel, the free rollers are mounted on the fixed frame and are rotatably connected with the free rollers through roller supports, and the wheels of the balancing vehicle are placed above the two free rollers arranged in parallel and are in contact with the two free rollers arranged in parallel respectively; A damping assembly, comprising a mounting seat, a first damping member, a second damping member, a gear and a driving member; The mounting seat is arranged on the fixing frame and is located between the two parallel free rollers; the first damping member has a first rack, and the second damping member has a second rack, the first rack is meshed with the upper part of the gear, and the second rack is meshed with the lower part of the gear; Wherein, the first damping member and the second damping member are both installed on the mounting seat, and the driving member rotates synchronously with the gear to drive the first damping member and the second damping member to move toward or away from each other until the first damping member and the second damping member are respectively in contact with the corresponding free rollers.

2. The braking performance testing device for a balancing vehicle according to claim 1, characterized in that: The driving member is a rotating handle, and the rotating handle has an adjustment hole; The damping assembly also includes a locking member; the locking member is fixedly connected to the mounting seat through the adjustment hole to achieve the fixation of the rotating handle.

3. The braking performance testing device for a balancing vehicle according to claim 2, characterized in that: The rotating handle is also provided with a mark, and the mark is used to display the damping parameter; The mounting seat is provided with an indicator, and the indicator points to a mark which is a damping parameter currently provided by the first damping member and the second damping member to the two free rollers arranged in parallel.

4. The braking performance testing device for a balancing vehicle according to claim 1, characterized in that: It also includes a signal collecting component fixed to the fixed frame, the free roller has a positioning component, and the signal collecting component is used to collect the number of times the positioning component passes.

5. The braking performance testing device for a balancing vehicle according to claim 1, characterized in that: It also includes a control frame, which is installed on two foot pedals of the balancing vehicle to be tested and is connected to the fixing frame through a flexible rope.

6. The braking performance testing device for a balancing vehicle according to claim 5, characterized in that: A counterweight block is arranged above the control frame, and the counterweight block can move along the left and right directions of the balancing vehicle.

7. The braking performance testing device for a balancing vehicle according to claim 6, characterized in that: The control frame has a strip-shaped hole, and the counterweight block matches the strip-shaped hole and can slide relative to the strip-shaped hole.

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