Load rotating speed test demonstration device for new energy automobile

Abstract

The invention discloses a load rotating speed test demonstration device for a new energy automobile, and relates to the technical field of motor load testing, the load rotating speed test demonstration device comprises a base, the top of the base is provided with a placing table for placing a motor, and the load rotating speed test demonstration device also comprises a connecting shaft which is arranged at the top of the base through a support; the end, close to the containing table, of the connecting shaft is provided with an inserting sleeve used for being connected with a motor output shaft. The resistance piece is arranged at the top of the base and used for applying adjustable rotating resistance to the connecting shaft; the adjusting mechanism is arranged at the top of the base and used for adjusting the relative position of the resistance piece and the connecting shaft so as to change rotation resistance, resistance is provided through magnetic attraction force instead of applying mechanical pressure to an output shaft of a motor in a traditional method, the problem of part abrasion caused by physical friction is thoroughly solved, and the service life of the motor is prolonged. The durability and reliability of the testing device are improved, and teaching demonstration is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of motor load testing, and more specifically, to a load and speed test demonstration device for new energy vehicles. Background Art

[0002] Performance testing of new energy vehicle drive motors is a key step in research and development, as well as teaching verification. This is especially true in speed stability tests under simulated real-world load conditions. Traditional devices typically use mechanical braking to apply resistance to the motor output shaft. However, traditional friction brakes rely on physical contact to generate resistance. Long-term testing can lead to continuous wear of the brake components and the shaft surface, reducing test accuracy and requiring frequent parts replacement, increasing maintenance costs. This problem is exacerbated by high-frequency use in teaching demonstrations.

[0003] Based on this, the present invention provides a load speed test demonstration device for new energy vehicles. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a load speed test demonstration device for new energy vehicles, which uses magnetic attraction to provide resistance (rather than applying mechanical pressure to the motor output shaft in the traditional method), completely avoiding the problem of parts wear caused by physical friction, improving the durability and reliability of the test device, and is more conducive to teaching demonstrations.

[0005] The present invention provides a load speed test demonstration device for new energy vehicles using the following technical solutions:

[0006] A load-speed test demonstration device for new energy vehicles includes a base, a placement table for placing a motor is provided on the top of the base, and a connecting shaft is arranged on the top of the base through a support, and a socket for connecting to the output shaft of the motor is provided at one end of the connecting shaft close to the placement table; a resistance member is arranged on the top of the base and is used to apply adjustable rotational resistance to the connecting shaft; and an adjustment mechanism is arranged on the top of the base and is used to adjust the relative position of the resistance member and the connecting shaft to change the rotational resistance.

[0007] Preferably, the adjustment mechanism includes a track plate, which is arranged on the base; a slide plate, which is slidably arranged on the track plate; the resistance member is arranged on the slide plate through a vertical plate; and a driving member, which is arranged on the base and is used to push the slide plate to slide in the track plate.

[0008] Preferably, a curved groove is provided on the top of the track plate, a travel hole is provided on the top of the skateboard, a slider is provided on the top of the skateboard for sliding, a rotating column is provided at the bottom of the slider, and the rotating column is arranged in the curved groove, and the vertical plate is connected to the slider.

[0009] Preferably, an electric push rod is provided inside the slider, the rotating column is connected to the telescopic end of the electric push rod, and the electric push rod can drive the rotating column to move into the travel hole.

[0010] Preferably, the rotating column is rotationally connected to the telescopic end of the electric push rod.

[0011] Preferably, the driving member is a servo electric push cylinder, and the telescopic end of the servo electric push cylinder is connected to the side end of the slide.

[0012] Preferably, the resistance member is a controllable electromagnet.

[0013] Preferably, an ambient temperature simulation box is provided on the top of the base relative to the placement table, and the placement table is arranged in the ambient temperature simulation box.

[0014] In summary, the present invention has the following beneficial technical effects:

[0015] 1. Assemble the motor of the new energy vehicle on the placement table, and assemble the output shaft of the motor and the socket, then turn on the resistance piece to generate a controllable magnetic attraction between it and the docking disk, and then turn on the motor to make the motor drive the socket to rotate, thereby driving the docking disk to rotate the connecting shaft. By adjusting the magnetic attraction between the resistance piece and the docking disk, the load is simulated. The resistance applied by the resistance piece to the connecting shaft is continuously adjustable, which makes the load simulation flexible and can be easily adapted to different test requirements. It provides a key guarantee for accurately and efficiently evaluating the speed performance of the motor under different load conditions, and it is a non-contact resistance. Through this structural design, the magnetic attraction force is used to provide resistance (instead of applying mechanical pressure to the motor output shaft in the traditional method), which completely avoids the problem of parts wear caused by physical friction, improves the durability and reliability of the test device, and is more conducive to teaching demonstrations.

[0016] 2. In addition to directly adjusting the magnetic attraction, the driver can also control the sliding of the slide within the track plate, varying the gap between the resistance element and the docking plate. Even if the magnetic field strength remains constant, the load resistance can be varied simply by adjusting the distance. This provides two independent and complementary control dimensions, improving the precision and responsiveness of load adjustment.

[0017] 3. When the driving member pushes the skateboard to slide along the track plate, the rotating column is guided in the curved groove to produce a trajectory motion, thereby driving the slider to move back and forth along the stroke hole. The movement of the slider further drives the vertical plate to move periodically on the top of the skateboard, and finally causes the resistance member to have a periodic position shift relative to the docking plate, thereby simulating the dynamic fluctuation of the load of the automobile motor under bumpy road conditions, and providing technical support for the speed performance test of the motor in a complex driving environment. Through this structural design, the magnetic attraction resistance is no longer a static constant value, but changes dynamically with the bump frequency. The dynamic characteristics of the road condition (such as frequency and amplitude) are introduced into the motor test to make the load conditions closer to the non-steady-state characteristics of the actual bumpy road surface.

[0018] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a load speed test demonstration device and a motor for a new energy vehicle according to an embodiment of the present invention;

[0020] Figure 2 This is a structural diagram of a load speed test demonstration device for new energy vehicles according to an embodiment of the present invention;

[0021] Figure 3 This is a structural diagram of the other side of a load-speed test demonstration device for new energy vehicles according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the front side of a load-speed test demonstration device for new energy vehicles according to an embodiment of the present invention;

[0023] Figure 5 is a structural diagram of the adjustment mechanism in an embodiment of the present invention;

[0024] Figure 6 yes Figure 5 A schematic diagram of the structure enlarged in the middle;

[0025] Figure 7 2 is a schematic structural diagram of an electric push rod and a rotating column in an embodiment of the present invention;

[0026] Figure 8 Schematic diagram of the structure of the track plate and the rotating column in an embodiment of the present invention;

[0027] Figure 9 Schematic diagram of the structure of the ambient temperature simulation box in an embodiment of the present invention.

[0028] Explanation of the accompanying drawings: 1. Base; 2. Placing table; 3. Connecting shaft; 4. Support; 5. Plug sleeve; 6. Resistance member; 7. Adjustment mechanism; 700. Track plate; 701. Slide plate; 702. Driving member; 703. Curved groove; 704. Travel hole; 705. Slider; 706. Rotating column; 707. Electric push rod; 8. Vertical plate; 9. Ambient temperature simulation box; 11. Docking plate. DETAILED DESCRIPTION

[0029] The following is combined with Figures 1 to 9 The present invention is described in further detail.

[0030] It should be noted that the drawings are schematic and not drawn to scale. For clarity and convenience, the relative sizes and proportions of parts shown in the drawings may be exaggerated or reduced in size. Any dimensions are illustrative only and are not intended to be limiting. Identical structures, elements, or components appearing in two or more drawings are denoted by the same reference numerals to indicate similar features.

[0031] Example 1

[0032] The embodiment of the present invention discloses a load speed test demonstration device for new energy vehicles. Figures 1 to 4 A load speed test demonstration device for new energy vehicles includes a base 1, a placement platform 2 for placing a motor is provided on the top of the base 1, and also includes a connecting shaft 3, a resistance member 6 and an adjustment mechanism 7; the connecting shaft 3 is arranged on the top of the base 1 through a support 4, and the end of the connecting shaft 3 close to the placement platform 2 is provided with a socket 5 for connecting to the output shaft of the motor, and the other end of the connecting shaft 3 is provided with a docking disk 11; the resistance member 6 is provided on the top of the base 1, for applying adjustable rotational resistance to the connecting shaft 3; the adjustment mechanism 7 is provided on the top of the base 1, for adjusting the relative position of the resistance member 6 and the connecting shaft 3 to change the rotational resistance.

[0033] like Figures 1 to 5 As shown, the adjustment mechanism 7 includes a track plate 700, a slide plate 701 and a driving member 702; the track plate 700 is set on the base 1; the slide plate 701 is slidably set on the track plate 700; the resistance member 6 is set on the slide plate 701 through the vertical plate 8; the driving member 702 is set on the base 1, and is used to push the slide plate 701 to slide in the track plate 700.

[0034] Specifically, the resistance member 6 is a controllable electromagnet (or a magnet), which can be controlled to adsorb the docking plate 11 in a working state.

[0035] Specifically, the driving member 702 is a servo electric push cylinder, and the telescopic end of the servo electric push cylinder is connected to the side end of the slide plate 701.

[0036] Specifically, the motor of the new energy vehicle is assembled on the placement table 2, and the output shaft of the motor is plugged and assembled with the socket 5, and then the resistance piece 6 is turned on to generate a controllable magnetic attraction between it and the docking plate 11, and then the motor is turned on to make the motor drive the socket 5 to rotate, thereby driving the docking plate 11 to rotate the connecting shaft 3, and the load is simulated by adjusting the magnetic attraction between the resistance piece 6 and the docking plate 11. The resistance applied by the resistance piece 6 to the connecting shaft 3 is continuously adjustable, which makes the load simulation flexible and can be easily adapted to different test requirements, providing a key guarantee for accurately and efficiently evaluating the speed performance of the motor under different load conditions, and is a non-contact resistance (compared to the traditional method of applying pressure to the motor output shaft to generate a load, friction damage can be avoided).

[0037] The driving member 702 can also be used to push the slide plate 701 to slide in the track plate 700, thereby changing the distance between the resistance member 6 and the docking plate 11, thereby ensuring that the magnetic force remains unchanged and the resistance size is adjusted (in this adjustment mode, the resistance member 6 can use a magnet in addition to a controllable electromagnet).

[0038] Through this structural design, magnetic attraction is used to provide resistance (rather than applying mechanical pressure to the motor output shaft as in the traditional method), which completely avoids the problem of parts wear caused by physical friction, improves the durability and reliability of the test device, and is more conducive to teaching demonstrations; in addition to directly adjusting the size of the magnetic attraction, the sliding of the skateboard 701 in the track plate 700 can also be controlled by the driving member 702 to change the gap distance between the resistance member 6 and the docking plate 11. Even if the magnetic field strength remains constant, the load resistance can be changed only by adjusting the distance. Two independent and complementary control dimensions are provided, which improves the precision and response speed of the load adjustment.

[0039] Example 2

[0040] This embodiment is further optimized based on the above embodiment 1, and the parts that are the same as the above technical solutions will not be repeated here. Figure 5 and Figure 6 As shown, in order to better realize the present invention, the following setting method is particularly adopted. In this embodiment, a curved groove 703 is provided on the top of the track plate 700, a travel hole 704 is provided on the top of the slide plate 701, a slider 705 is slidably provided on the top of the slide plate 701, a rotating column 706 is provided at the bottom of the slider 705, and the rotating column 706 is arranged in the curved groove 703, and the vertical plate 8 is connected to the slider 705.

[0041] Specifically, when the driving member 702 pushes the skateboard 701 to slide along the track plate 700, the rotating column 706 is guided in the curved groove 703 to produce a trajectory motion, thereby driving the slider 705 to move back and forth along the stroke hole 704. The movement of the slider 705 further drives the vertical plate 8 to move periodically on the top of the skateboard 701, and finally causes the resistance member 6 to undergo a periodic position displacement relative to the docking plate 11, thereby simulating the dynamic fluctuation of the load of the automobile motor under bumpy road conditions, and providing technical support for the speed performance test of the motor in a complex driving environment.

[0042] This structural design eliminates the need for a static, constant magnetic resistance, which changes dynamically with the frequency of bumps. By incorporating road dynamics (such as frequency and amplitude) into motor testing, the load conditions more closely mirror the non-steady-state characteristics of actual bumpy roads.

[0043] like Figure 8 As shown, a copper sheet is detachably provided on the inner wall of the curved groove 703 .

[0044] like Figure 7 As shown, an electric push rod 707 is provided inside the slider 705 , a rotating column 706 is connected to the telescopic end of the electric push rod 707 , and the electric push rod 707 can drive the rotating column 706 to move into the travel hole 704 .

[0045] Specifically, by providing the electric push rod 707 , the rotating column 706 can be moved into the stroke hole 704 , thereby facilitating the switching between the linear displacement and the curved displacement of the resistance member 6 .

[0046] Specifically, the rotating column 706 and the telescopic end of the electric push rod 707 are rotationally connected.

[0047] Example 3

[0048] This embodiment is further optimized based on the above embodiment 1, and the parts that are the same as the above technical solutions will not be repeated here. Figure 9 As shown, in order to better implement the present invention, the following setting method is particularly adopted. In this embodiment, an ambient temperature simulation box 9 is provided on the top of the base 1 relative to the placement table 2, and the placement table 2 is arranged in the ambient temperature simulation box 9.

[0049] By setting up an environmental temperature simulation box 9, the environment of the new energy vehicle motor can be limited, thereby increasing the authenticity of the new energy vehicle motor test.

[0050] Specifically, the control method of the present invention is controlled by a controller, and the control circuit of the controller can be implemented by simple programming by those skilled in the art, and the control method and circuit connection will not be explained in detail here.

[0051] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0052] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0053] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0056] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0057] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A load speed test demonstration device for new energy vehicles, comprising a base (1), a top of the base (1) being provided with a placement table (2) for placing a motor, characterized in that: Also includes: A connecting shaft (3) is arranged on the top of the base (1) through a support (4), and a socket (5) for connecting to the output shaft of the motor is provided at one end of the connecting shaft (3) close to the placement table (2); a resistance member (6), arranged on the top of the base (1), for applying an adjustable rotational resistance to the connecting shaft (3); An adjustment mechanism (7) is provided on the top of the base (1) and is used to adjust the relative position of the resistance member (6) and the connecting shaft (3) to change the rotational resistance.

2. A load speed test demonstration device for new energy vehicles according to claim 1, characterized in that: The regulating mechanism (7) comprises: A track plate (700) is arranged on the base (1); A slide plate (701) is slidably arranged on the track plate (700); The resistance member (6) is arranged on the slide plate (701) via a vertical plate (8); A driving member (702) is provided on the base (1) and is used to push the slide plate (701) to slide within the track plate (700).

3. A load speed test demonstration device for new energy vehicles according to claim 2, characterized in that: The top of the track plate (700) is provided with a curved groove (703), the top of the slide plate (701) is provided with a travel hole (704), the top of the slide plate (701) is provided with a slider (705) for sliding, the bottom of the slider (705) is provided with a rotating column (706), and the rotating column (706) is arranged in the curved groove (703), and the vertical plate (8) is connected to the slider (705).

4. A load speed test demonstration device for new energy vehicles according to claim 3, characterized in that: An electric push rod (707) is provided inside the slider (705), the rotating column (706) is connected to the telescopic end of the electric push rod (707), and the electric push rod (707) can drive the rotating column (706) to move into the travel hole (704).

5. The load-speed test demonstration device for new energy vehicles according to claim 4, characterized in that: The rotating column (706) is rotatably connected to the telescopic end of the electric push rod (707).

6. The load-speed test demonstration device for new energy vehicles according to claim 2, characterized in that: The driving member (702) is a servo electric push cylinder, and the telescopic end of the servo electric push cylinder is connected to the side end of the slide plate (701).

7. The load-speed test demonstration device for new energy vehicles according to claim 1, characterized in that: The resistance member (6) is a controllable electromagnet.

8. A load-speed test demonstration device for new energy vehicles according to any one of claims 1 to 7, characterized in that: An ambient temperature simulation box (9) is provided on the top of the base (1) at a position relative to the placement table (2), and the placement table (2) is arranged in the ambient temperature simulation box (9).

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