A new energy dynamometer wheel base adjusting device

Abstract

This utility model discloses a wheelbase adjustment device for a new energy dynamometer. The device comprises a platform slidably connected above a base, and a servo motor with a synchronous structure drives a lead screw to rotate, thus enabling the platform to move. Specifically, the threaded engagement between the lead screw and the threaded sleeve converts the rotational motion of the servo motor into linear motion of the platform. This design allows the platform to move smoothly along a set direction, adapting to the testing needs of vehicles with different wheelbases, and improving the applicability and testing efficiency of the dynamometer. Simultaneously, the synchronously moving lead screw reduces tilting or vibration of the platform during movement, further improving the stability and repeatability of the test, and enhancing the performance and reliability of the dynamometer.

Description

Technical Field

[0001] This utility model belongs to the field of wheelbase adjustment, specifically, it relates to a wheelbase adjustment device for a new energy dynamometer. Background Technology

[0002] With increasing global emphasis on environmental protection and sustainable development, the new energy vehicle industry has experienced rapid growth. New energy vehicles, with their significant advantages such as zero emissions and low noise, are gradually becoming the new favorites in the automotive market, with their market share continuously expanding. Against this backdrop, the requirements for automotive performance testing equipment are also rising. The accuracy, stability, and adaptability of testing equipment need continuous improvement to meet the increasingly stringent testing standards and diverse testing needs of new energy vehicles.

[0003] As an indispensable key piece of equipment in the field of automotive performance testing, the dynamometer bears the important responsibility of accurately measuring important indicators such as vehicle power performance, economic performance, and emission performance. In the testing of new energy vehicles, the dynamometer plays a particularly prominent role, as it can simulate various real-world driving conditions, providing crucial data support for the research, development, production, and quality control of new energy vehicles. However, traditional dynamometers have significant limitations in wheelbase adjustment, which greatly restricts their application effectiveness in the field of new energy vehicle testing.

[0004] Most existing dynamometers adjust wheelbase using either a single-screw adjustment or a chain drive. While the single-screw adjustment method is simple in structure, uneven force distribution on the screw during actual use can easily lead to a large tilt angle on the moving platform. This tilt angle makes it difficult to maintain good parallelism between the rollers on the moving platform and the opposing fixed rollers, thus affecting the accuracy and reliability of the test. Although the chain drive adjustment method can achieve platform movement to some extent, the elastic deformation of the chain and transmission errors also make it difficult to guarantee the parallelism between the rollers, resulting in poor repeatability and inconsistent test results.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a new energy dynamometer wheelbase adjustment device, which solves the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A new energy dynamometer wheelbase adjustment device includes: a base, and a platform for testing vehicle power is slidably connected above the base;

[0009] A positioning plate is fixedly connected to one side of the base, and a servo motor is fixedly connected to one side of the positioning plate. A synchronization structure is set on the top of the base, and the transmission end of the servo motor and the synchronization structure cooperate to drive the synchronization structure.

[0010] A plate is fixedly connected to one side of the platform, and a mounting hole is opened through the opposite side of the plate. A threaded sleeve is fixedly connected inside the mounting hole. Several lead screws are rotatably connected to the top of the base. The lead screws and the threaded sleeves are threadedly engaged. In addition, the lead screws and the synchronization structure cooperate with each other, and the synchronization structure can drive several lead screws to rotate simultaneously.

[0011] Optionally, two bearing housing assemblies are fixedly connected to the top of the base. Each bearing housing assembly includes two bearing housings, and the rotation of the two lead screws is connected between the two bearing housings.

[0012] Optionally, the output end of the servo motor is fixedly connected to the first synchronous pulley, a second synchronous pulley is fixedly connected to one side of the first synchronous pulley, a third synchronous pulley and a fourth synchronous pulley are fixedly connected to one end of the two lead screws extending from the bearing seats, a first synchronous belt is provided between the first synchronous pulley and the third synchronous pulley, and a second synchronous belt is provided between the second synchronous pulley and the fourth synchronous pulley.

[0013] Optionally, several tracks are fixedly connected to the top of the base, and track wheels that are slidably connected to the tracks are fixedly connected to the bottom of the platform.

[0014] Optionally, a connecting seat is fixedly connected to the top of the base, and a roller is rotatably connected to one side of the connecting seat, with both the first and second synchronous belts attached to the outer wall of the roller.

[0015] Optionally, the base may have several slots extending through its opposite sides.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] By installing a slidingly connected platform above the base and utilizing a servo motor in conjunction with a synchronous structure to drive the lead screw, the platform's movement is achieved. In particular, the threaded engagement between the lead screw and the threaded sleeve converts the servo motor's rotational motion into the platform's linear motion. This design allows the platform to move smoothly along a set direction, adapting to the testing needs of vehicles with different wheelbases and improving the dynamometer's applicability and testing efficiency. Simultaneously, the synchronously moving lead screw reduces tilting or vibration of the platform during movement, further improving testing stability and repeatability, and enhancing the dynamometer's performance and reliability.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the rear structure of the wheelbase adjustment device;

[0021] Figure 2 This is a schematic diagram of the front structure of the wheelbase adjustment device;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure at point A in the middle.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base; 2. Platform; 3. Positioning plate; 4. Servo motor; 5. Plate; 6. Threaded sleeve; 7. Lead screw; 8. Bearing seat; 9. First synchronous pulley; 10. Second synchronous pulley; 11. Third synchronous pulley; 12. Fourth synchronous pulley; 13. First synchronous belt; 14. Second synchronous belt; 15. Track; 16. Track wheel; 17. Connecting seat; 18. Roller.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this embodiment provides a new energy dynamometer wheelbase adjustment device, including a base 1, with several slots through-opening on opposite sides of the base 1, and a platform 2 for testing vehicle power slidably connected above the base 1.

[0028] A positioning plate 3 is fixedly connected to one side of the base 1, and a servo motor 4 is fixedly connected to one side of the positioning plate 3. A synchronization structure is set on the top of the base 1, and the transmission end of the servo motor 4 and the synchronization structure cooperate to drive the synchronization structure.

[0029] A plate 5 is fixedly connected to one side of the platform 2. A mounting hole is opened through the opposite side of the plate 5. A threaded sleeve 6 is fixedly connected inside the mounting hole. Several lead screws 7 are rotatably connected above the base 1. The lead screws 7 and the threaded sleeve 6 are threadedly engaged. In addition, the lead screws 7 and the synchronization structure cooperate with each other. The synchronization structure can drive several lead screws 7 to rotate simultaneously.

[0030] It should be noted that the platform 2, which is slidably connected above the base 1, can move along a set direction to adapt to the testing needs of automobiles with different wheelbases, thus expanding the applicability of the dynamometer. The servo motor 4, in conjunction with a synchronous structure, drives the lead screw 7 to rotate, achieving precise movement of the platform 2 and improving the accuracy and reliability of wheelbase adjustment. The threaded engagement between the lead screw 7 and the threaded sleeve 6 converts the rotational motion of the motor into the linear motion of the platform 2, ensuring stable transmission and effectively guaranteeing the smooth movement of the platform 2, thereby ensuring the stable conduct of the testing process.

[0031] By installing a slidingly connected platform 2 above the base 1, and utilizing a servo motor 4 in conjunction with a synchronous structure to drive the lead screw 7 to rotate, the movement of the platform 2 is achieved. In particular, the threaded engagement between the lead screw 7 and the threaded sleeve 6 converts the rotational motion of the servo motor 4 into the linear motion of the platform 2. This design allows the platform 2 to move smoothly along a set direction, adapting to the testing needs of automobiles with different wheelbases, thus improving the applicability and testing efficiency of the dynamometer. Simultaneously, the synchronously moving lead screw 7 reduces tilting or vibration of the platform 2 during movement, further improving the stability and repeatability of the test, and enhancing the performance and reliability of the dynamometer.

[0032] In this embodiment, two bearing seat assemblies are fixedly connected above the base 1. Each bearing seat assembly includes two bearing seats 8, and the two lead screws 7 are rotatably connected between the two bearing seats 8.

[0033] It should be noted that the two bearing housing assemblies provide stable support for the lead screw 7, ensuring uniform force distribution during rotation, reducing bending deformation, and extending its service life. Simultaneously, the rotation of the lead screw 7 guarantees the straightness and parallelism of the platform 2's movement, further improving the accuracy of wheelbase adjustment and ensuring accuracy during automotive testing.

[0034] In this embodiment, the output end of the servo motor 4 is fixedly connected to the first synchronous pulley 9, and a second synchronous pulley 10 is fixedly connected to one side of the first synchronous pulley 9. The two lead screws 7 are respectively fixedly connected to the third synchronous pulley 11 and the fourth synchronous pulley 12 at one end of the extended bearing seat 8. A first synchronous belt 13 is provided between the first synchronous pulley 9 and the third synchronous pulley 11, and a second synchronous belt 14 is provided between the second synchronous pulley 10 and the fourth synchronous pulley 12.

[0035] It should be noted that the synchronous structure consisting of the first synchronous pulley 9, the second synchronous pulley 10, the third synchronous pulley 11, the fourth synchronous pulley 12, the first synchronous belt 13, and the second synchronous belt 14 evenly transmits the power of the servo motor 4 to the two lead screws 7, achieving synchronous rotation of the two lead screws 7. This linkage method ensures that the platform 2 is subjected to balanced forces on both sides during movement, avoids tilting and vibration of the platform 2, improves the stability and repeatability of the test, and enhances the performance and reliability of the dynamometer.

[0036] In this embodiment, a plurality of tracks 15 are fixedly connected to the upper part of the base 1, and track wheels 16 are fixedly connected to the lower part of the platform 2 and slidably connected to the tracks 15. The tracks 15 on the upper part of the base 1 and the track wheels 16 on the lower part of the platform 2 cooperate with each other to provide a clear guiding path for the movement of the platform 2, enabling the platform 2 to move smoothly along the predetermined tracks 15, further improving the accuracy and stability of the wheelbase adjustment.

[0037] In this embodiment, a connecting seat 17 is fixedly connected to the top of the base 1. A roller 18 is rotatably connected to one side of the connecting seat 17, and both the first synchronous belt 13 and the second synchronous belt 14 are attached to the outer wall of the roller 18. The roller 18 on one side of the connecting seat 17 is used to attach the first synchronous belt 13 and the second synchronous belt 14, thus tensioning the synchronous belts. The tensioned synchronous belts can ensure good meshing between the synchronous pulley and the synchronous belt, reduce slippage, ensure stable power transmission, and thus improve the accuracy of wheelbase adjustment.

[0038] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A wheelbase adjustment device for a new energy dynamometer, characterized in that, include: A base (1) is slidably connected to a platform (2) for testing the power of a car. A positioning plate (3) is fixedly connected to one side of the base (1), and a servo motor (4) is fixedly connected to one side of the positioning plate (3). A synchronization structure is provided above the base (1), and the transmission end of the servo motor (4) and the synchronization structure cooperate to drive the synchronization structure. A plate (5) is fixedly connected to one side of the platform (2). An installation hole is opened through the opposite side of the plate (5). A threaded sleeve (6) is fixedly connected inside the installation hole. Several lead screws (7) are rotatably connected above the base (1). The lead screws (7) and the threaded sleeve (6) are threaded together. In addition, the lead screws (7) and the synchronization structure cooperate with each other. The synchronization structure can drive several lead screws (7) to rotate simultaneously.

2. The wheelbase adjustment device for a new energy dynamometer according to claim 1, characterized in that, Two bearing housing assemblies are fixedly connected above the base (1). The bearing housing assembly includes two bearing housings (8), and the two lead screws (7) are rotatably connected between the two bearing housings (8).

3. The wheelbase adjustment device for a new energy dynamometer according to claim 2, characterized in that, The output end of the servo motor (4) is fixedly connected to the first synchronous pulley (9), and the second synchronous pulley (10) is fixedly connected to one side of the first synchronous pulley (9). The end of the two lead screws (7) extending from the bearing seat (8) is fixedly connected to the third synchronous pulley (11) and the fourth synchronous pulley (12), respectively. A first synchronous belt (13) is provided between the first synchronous pulley (9) and the third synchronous pulley (11), and a second synchronous belt (14) is provided between the second synchronous pulley (10) and the fourth synchronous pulley (12).

4. The wheelbase adjustment device for a new energy dynamometer according to claim 3, characterized in that, Several tracks (15) are fixedly connected to the top of the base (1), and track wheels (16) that are slidably connected to the bottom of the platform (2) are fixedly connected to the top of the tracks (15).

5. The wheelbase adjustment device for a new energy dynamometer according to claim 4, characterized in that, A connecting seat (17) is fixedly connected above the base (1), and a roller shaft (18) is rotatably connected to one side of the connecting seat (17). The first synchronous belt (13) and the second synchronous belt (14) are both attached to the outer wall of the roller shaft (18).

6. The wheelbase adjustment device for a new energy dynamometer according to claim 5, characterized in that, Several slots are provided on the opposite sides of the base (1).

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