Electric drive shock absorption test system

Abstract

The application provides an electric drive damping test system, which comprises a driving bottom plate, a limiting installation assembly, two fixed seats and two fixed frames, the two fixed seats are oppositely arranged on the driving bottom plate, a containing space is formed between the fixed seat and the fixed frame, a damping assembly, the damping assembly comprises a first buffer assembly, a second buffer assembly and an installation bottom plate. The limiting installation assembly comprises two fixed seats and two fixed frames, a containing space is formed between the fixed seat and the fixed frame, the first buffer assembly is two, the two first buffer assemblies are arranged in the two containing spaces respectively, the installation bottom plate is arranged between the two fixed seats, the second buffer assembly is arranged between the installation bottom plate and the driving bottom plate, the damping efficiency of the electric drive damping test system is effectively improved through the first buffer assembly and the second buffer assembly, the vibration isolation effect is achieved, the damage of the driving system caused by vibration is prevented, and the service life of the system is prolonged.

Description

Technical Field

[0001] This invention relates to the field of electric drive technology, and more specifically, to an electric drive vibration damping testing system. Background Technology

[0002] Electric vehicles (EVs) are vehicles powered by onboard electricity, using electric motors to drive the wheels, and meeting all road traffic and safety regulations. EVs primarily rely on electric drive systems for power. While existing EV systems generally meet basic user needs, they still have some shortcomings. First, their vibration resistance is poor; vibrations generated during vehicle operation can easily damage the drive system, shortening its lifespan. Second, most existing EV systems are fixedly installed in the vehicle, making installation and disassembly cumbersome and increasing the workload for maintenance personnel. Third, existing EV systems lack emergency breakage protection; during driving, tire stress is transmitted to the drive shaft, and excessive torque on the drive shaft can lead to breakage, affecting the safety performance of the drive system. Therefore, designing a proper EV electric drive system is essential. Summary of the Invention

[0003] The main objective of this invention is to provide an electric drive vibration damping test system to solve the problem of poor vibration resistance of electric drive systems in the prior art.

[0004] To achieve the above objectives, according to one aspect of the present invention, an electric drive vibration damping test system is provided, comprising: a drive base plate; a limiting mounting assembly, the limiting mounting assembly including two fixed seats and two fixed frames, the two fixed seats being disposed opposite to each other on the drive base plate, the two fixed frames being respectively connected to the two fixed seats, and an accommodating space being formed between the fixed seats and the fixed frames; and a vibration damping assembly, the vibration damping assembly including a first buffer assembly, a second buffer assembly, and a mounting base plate, wherein there are two first buffer assemblies, the two first buffer assemblies being respectively disposed within two accommodating spaces, the mounting base plate being disposed between the two fixed seats, and the second buffer assembly being disposed between the mounting base plate and the drive base plate.

[0005] Furthermore, the limiting installation assembly also includes: four limiting rods, which are set on the drive base plate; and four limiting platforms, which are set in correspondence with the four limiting rods, and are connected to the mounting base plate. Each of the four limiting platforms is provided with a limiting ring.

[0006] Furthermore, at least one first buffer assembly includes: a buffer ring disposed within the receiving space, the outer circular surface of the buffer ring being fitted against the fixed seat and the fixed frame, the inner circle of the buffer ring being provided with a connecting ring, the outer circumferential surface of the connecting ring being provided with a plurality of support rods, the ends of the support rods being provided through the buffer ring, and each support rod being provided with a first spring, the first spring being located between the inner circle of the buffer ring and the outer circumferential surface of the connecting ring.

[0007] Furthermore, the first end of the first spring is fixedly connected to the buffer ring, and the second end of the first spring is fixedly connected to the connecting ring.

[0008] Furthermore, the second buffer assembly includes a second spring, and there are multiple second springs. The multiple second springs are respectively sleeved on the limiting rod. The first end of the second spring abuts against the limiting ring, and the second end of the second spring abuts against the limiting ring.

[0009] Furthermore, the electric drive vibration damping test system also includes: a connecting bearing, which is coaxial with the connecting ring, and the connecting ring is sleeved on the connecting bearing; and a drive shaft, which is coaxial with the connecting bearing, with both ends of the drive shaft connected to the connecting bearing inside the connecting ring.

[0010] Furthermore, the electric drive vibration damping test system also includes: a reducer body, which is fixed on the mounting base plate, with the output end of the reducer body sleeved on the drive shaft and the input end of the reducer body sleeved on the first end of the coupling; and a motor body, with the rotating shaft of the motor body connected to the second end of the coupling, and the reducer body fixed on the mounting base plate.

[0011] Furthermore, the mounting base plate is also equipped with a drive adjustment assembly, which includes multiple control modules, including: a central processing module, a power reading module, a speed receiving module, a torque analysis module, an operation command module, a power adjustment module, and an emergency disconnection prevention module.

[0012] Furthermore, the drive adjustment assembly also includes: a mounting box, which is fixed to the mounting base plate and has a mounting cavity with a top opening; and a cover, which is disposed at the opening of the mounting box.

[0013] Furthermore, the drive adjustment assembly also includes: a control plate, which is disposed in the mounting cavity of the mounting box, and multiple control modules are disposed on the control plate.

[0014] By applying the technical solution of this invention, the limiting installation assembly includes two fixed seats and two fixed frames, with a receiving space formed between the fixed seats and the fixed frames. Two first buffer components are respectively disposed within the two receiving spaces. The mounting base is disposed between the two fixed seats, and the second buffer component is disposed between the mounting base and the drive base. The first and second buffer components effectively improve the vibration reduction efficiency of the electric drive vibration damping test system, achieving a vibration isolation effect, preventing damage to the drive system caused by vibration, and extending the system's service life. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure of a first embodiment of an electric drive vibration damping test system according to the present invention is shown;

[0017] Figure 2 A schematic diagram of a second embodiment of an electric drive vibration damping test system according to the present invention is shown;

[0018] Figure 3 A schematic diagram of a third embodiment of an electric drive vibration damping test system according to the present invention is shown;

[0019] Figure 4 The invention is shown Figure 1 A schematic diagram at point A in the middle;

[0020] Figure 5 A schematic diagram of a fourth embodiment of an electric drive vibration damping test system according to the present invention is shown;

[0021] Figure 6 The invention is shown Figure 5 A schematic diagram at point B in the middle;

[0022] Figure 7 A schematic diagram of an embodiment of a control module according to the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 1. Drive base plate;

[0025] 2. Limiting installation components; 201. Fixing base; 202. Fixing frame; 204. Limiting rod; 205. Limiting ring; 206. Limiting platform;

[0026] 3. Vibration damping components; 301. Buffer ring; 302. Support rod; 303. Connecting ring; 304. First spring; 305. Second spring; 306. Mounting base plate;

[0027] 4. Motor body;

[0028] 5. Reducer body;

[0029] 6. Couplings;

[0030] 7. Connect the bearings;

[0031] 8. Drive shaft;

[0032] 9. Drive adjustment component; 901. Central processing module; 902. Power reading module; 903. Speed ​​receiving module; 904. Torque analysis module; 905. Operation command module; 906. Power adjustment module; 907. Emergency anti-breakdown module; 908. Mounting box; 909. Cover; 910. Control board. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or groups thereof. It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0035] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0036] Combination Figures 1 to 7 As shown, according to a specific embodiment of this application, an electric drive vibration damping test system is provided.

[0037] Specifically, an electric drive vibration damping test system includes: a drive base plate 1; a limiting mounting assembly 2, which includes two fixed seats 201 and two fixed frames 202, the two fixed seats 201 being disposed opposite to each other on the drive base plate 1, the two fixed frames 202 being respectively connected to the two fixed seats 201, and a receiving space being formed between the fixed seats 201 and the fixed frames 202; and a vibration damping assembly 3, which includes a first buffer assembly, a second buffer assembly, and a mounting base plate 306, the first buffer assembly being two in number, the two first buffer assemblies being respectively disposed in the two receiving spaces, the mounting base plate 306 being disposed between the two fixed seats 201, and the second buffer assembly being disposed between the mounting base plate 306 and the drive base plate 1.

[0038] In this embodiment, the limiting installation assembly includes two fixed seats and two fixed frames, forming an accommodating space between the fixed seats and the fixed frames. Two first buffer components are respectively disposed within the two accommodating spaces. The mounting base plate is disposed between the two fixed seats, and the second buffer component is disposed between the mounting base plate and the drive base plate. The first and second buffer components effectively improve the vibration reduction efficiency of the electric drive vibration damping test system, achieving vibration isolation, preventing damage to the drive system caused by vibration, and extending the system's service life.

[0039] Furthermore, the limiting installation assembly 2 also includes: four limiting rods 204, which are disposed on the drive base plate 1; and four limiting platforms 206, which are correspondingly arranged with the four limiting rods 204. The four limiting platforms 206 are connected to the mounting base plate 306, and each of the four limiting platforms 206 contains a limiting ring 205. In this embodiment, limiting platforms 206 are respectively disposed at the four bottom corners of the mounting base plate 306, and limiting rings 205 are fitted into the limiting platforms 206. This arrangement ensures a stable connection between the limiting installation assembly 2 and the drive base plate 1, effectively preventing the limiting installation assembly 2 from falling off during operation.

[0040] Further, at least one first buffer assembly includes: a buffer ring 301, which is disposed within the receiving space. The outer circular surface of the buffer ring 301 is fitted against the fixed base 201 and the fixed frame 202. A connecting ring 303 is disposed on the inner circle of the buffer ring 301. A plurality of support rods 302 are disposed on the outer circumferential surface of the connecting ring 303. The ends of the support rods 302 pass through the buffer ring 301, and each support rod 302 is provided with a first spring 304, which is located between the inner circle of the buffer ring 301 and the outer circumferential surface of the connecting ring 303. In this embodiment, the support rods are slidably connected in the evenly spaced grooves on the buffer ring, and one end of the support rod is fixed to the outer wall of the connecting ring. The first springs are evenly spaced on the outer wall of the connecting ring, and one end of the first spring is fixed to the inner wall of the buffer ring. The support rods are located inside the first springs. A connecting bearing is sleeved in the connecting ring, and the connecting bearing is sleeved on both ends of the transmission shaft. This arrangement effectively improves the shock absorption efficiency of the fixed frame 202.

[0041] Furthermore, the first end of the first spring 304 is fixedly connected to the buffer ring 301, and the second end of the first spring 304 is fixedly connected to the connecting ring 303. This arrangement ensures the stability of the first spring 304 and effectively prevents the first spring 304 from failing.

[0042] Furthermore, the second buffer assembly includes multiple second springs 305, each sleeved on the limiting rod 204. The first end of each second spring 305 abuts against the limiting ring 205, and the second end of each second spring 305 abuts against the limiting ring 205. In this embodiment, the bottom of the limiting ring 205 is provided with the second spring 305, and the bottom end of the second spring 305 is fixed to the top of the drive base plate 1. The top of the drive base plate 1 is provided with the limiting rod 204, which is located inside the second spring 305. A through groove is provided at the connection between the mounting base plate 306 and the limiting rod 204. This design ensures that the second spring 305 will not fail and guarantees the shock absorption efficiency of the mounting base plate 306.

[0043] Furthermore, the electric drive vibration damping test system also includes: a connecting bearing 7, coaxially arranged with a connecting ring 303, the connecting ring 303 being fitted onto the connecting bearing 7; and a drive shaft 8, coaxially arranged with the connecting bearing 7, with both ends of the drive shaft 8 connected to the connecting bearing 7 within the connecting ring 303. This arrangement ensures a stable connection between the vibration damping assembly 3 and the drive shaft 8, effectively transmitting vibrations generated by the drive shaft 8 to the vibration damping assembly 3 through the connecting bearing 7, thus significantly improving the vibration damping efficiency of the electric drive vibration damping test system.

[0044] Furthermore, the electric drive vibration damping test system also includes: a reducer body 5, which is fixed on the mounting base plate 306. The output end of the reducer body 5 is sleeved on the transmission shaft 8, and the input end of the reducer body 5 is sleeved on the first end of the coupling 6; and a motor body 4, whose rotating shaft is connected to the second end of the coupling 6. The reducer body 5 is fixed on the mounting base plate 306. In this embodiment, the transmission shaft is set on the output end of the reducer body, and the input end of the reducer body is provided with a coupling, which is connected to the output end of the motor body. Both the motor body and the reducer body are fixedly mounted on the top of the mounting base plate. This arrangement allows the reducer body 5 and the motor body 4 to be connected through the coupling 6, and the vibration generated by the reducer body 5 and the motor body 4 is transmitted to the vibration damping component 3 through the transmission shaft 8, effectively improving the vibration damping efficiency of the electric drive vibration damping test system.

[0045] Furthermore, the mounting base 306 is also equipped with a drive adjustment assembly 9, which includes multiple control modules: a central processing module 901, a power reading module 902, a speed receiving module 903, a torque analysis module 904, an operation command module 905, a power adjustment module 906, and an emergency disconnection module 907. In this embodiment, the power adjustment module 906 controls and connects to the motor body 4. The power reading module 902 and the speed receiving module 903 both control and connect to the torque analysis module 904, which in turn controls and connects to the central processing module 901. The central processing module 901 controls and connects to the operation command module 905, the power adjustment module 906, and the emergency disconnection module 907. The operation command module 905 receives user operation commands for the vehicle and transmits them to the central processing module 901. Subsequently, the power adjustment module 906 drives the motor body 4 to adjust its power in response to the user's operation. This configuration effectively improves the control efficiency of the electric drive vibration damping test system.

[0046] Furthermore, the drive adjustment assembly 9 also includes: a mounting box 908, which is fixed to the mounting base plate 306 and has a mounting cavity with a top opening; and a cover 909, which is disposed at the opening of the mounting box 908. This configuration serves to protect the drive adjustment assembly 9 and prevent damage caused by leakage of the control module.

[0047] Furthermore, the drive adjustment assembly 9 also includes a control plate 910, which is disposed within the mounting cavity of the mounting box 908, and multiple control modules are disposed on the control plate 910. This arrangement effectively improves the integration of the control modules.

[0048] In another embodiment of this application, the buffer ring 301, connecting ring 303, and drive shaft 8 are supported by a fixed seat 201 on the drive base plate 1, and the buffer ring 301 is fixed by a fixed frame 202. Simultaneously, the mounting base plate 306 is limited and supported by the cooperation of a limiting ring 205 and a limiting platform 206. This simplifies the installation and disassembly process and reduces the labor intensity of personnel maintaining the drive system. The motor body 4, reducer body 5, and drive shaft 8 are installed in the limiting mounting assembly 2 using the provided shock-absorbing component 3. The first spring 304 and the second spring 305 are compressed and stretched to regulate the operation of the motor body 4, connecting ring 301, connecting ring 303, and drive shaft 8. The vibration is buffered, which has the effect of vibration isolation, preventing the vibration from damaging the drive system and extending the service life of the system. During the drive process, the torque analysis module 904, together with the power reading module 902 and the speed receiving module 903, transmits the power of the motor body 4 and the speed of the drive shaft 8 to analyze the magnitude of the torque on the drive shaft 8. When the torque exceeds the maximum torsional stress of the drive shaft 8, it sends an anti-breakage abnormality feedback to the central processing module 901. Then, the emergency anti-breakage module 907 makes an anti-breakage response to prevent the drive shaft 8 from breaking due to excessive torque during rotation, thereby improving the safety performance of the drive system.

[0049] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0050] This low-vibration automotive electric drive system supports the buffer ring, connecting ring, and drive shaft via a fixed base mounted on the drive base plate. The buffer ring is secured by a fixing frame, while a limiting ring and a limiting platform work together to limit and support the mounting base plate. This simplifies installation and disassembly, reducing the workload for maintenance personnel. A vibration damping assembly houses the motor body, reducer body, and drive shaft within a limiting mounting assembly. The compression and tension of the first and second springs buffer vibrations generated during operation, effectively isolating the drive system and preventing damage, thus extending its lifespan. During operation, a torque analysis module, combined with power reading and speed receiving modules, analyzes the torque on the drive shaft using the motor power and drive shaft speed. When the torque exceeds the maximum torsional stress of the drive shaft, a breakage prevention feedback is sent to the central processing module. The emergency breakage prevention module then responds to prevent breakage due to excessive torque during rotation, improving the safety performance of the drive system.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0053] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An electric drive vibration damping testing system, characterized in that, include: Drive base plate (1); The limiting installation component (2) includes two fixed seats (201) and two fixed brackets (202). The two fixed seats (201) are arranged opposite to each other on the drive base plate (1). The two fixed brackets (202) are respectively connected to the two fixed seats (201). A receiving space is formed between the fixed seats (201) and the fixed brackets (202). The shock absorption assembly (3) includes a first buffer assembly, a second buffer assembly and a mounting base plate (306). There are two first buffer assemblies, which are respectively disposed in the two accommodating spaces. The mounting base plate (306) is disposed between the two fixed seats (201). The second buffer assembly is disposed between the mounting base plate (306) and the drive base plate (1). At least one of the first buffer components includes: A buffer ring (301) is disposed within the accommodating space. The outer circular surface of the buffer ring (301) is fitted to the fixed seat (201) and the fixed frame (202). A connecting ring (303) is disposed on the inner circle of the buffer ring (301). A plurality of support rods (302) are disposed on the outer circumferential surface of the connecting ring (303). The ends of the support rods (302) pass through the buffer ring (301). A first spring (304) is disposed on each of the support rods (302). The first spring (304) is located between the inner circle of the buffer ring (301) and the outer circumferential surface of the connecting ring (303). The first end of the first spring (304) is fixedly connected to the buffer ring (301), and the second end of the first spring (304) is fixedly connected to the connecting ring (303); The limiting installation component (2) also includes: Limiting rods (204), there are four limiting rods (204), and the four limiting rods (204) are disposed on the drive base plate (1); There are four limiting platforms (206), and the four limiting platforms (206) are arranged in a one-to-one correspondence with the four limiting rods (204). The four limiting platforms (206) are connected to the mounting base plate (306). Each of the four limiting platforms (206) is provided with a limiting ring (205). The second buffer assembly includes a second spring (305), and there are multiple second springs (305). The multiple second springs (305) are respectively sleeved on the limiting rod (204). The first end of the second spring (305) abuts against the limiting ring (205), and the second end of the second spring (305) abuts against the driving base plate (1). The electric drive vibration damping test system also includes: A connecting bearing (7) is coaxially arranged with the connecting ring (303), and the connecting ring (303) is sleeved on the connecting bearing (7); A drive shaft (8) is coaxially arranged with the connecting bearing (7), and both ends of the drive shaft (8) are respectively connected to the connecting bearing (7) in the connecting ring (303); The electric drive vibration damping test system also includes: The reducer body (5) is fixed on the mounting base plate (306). The output end of the reducer body (5) is sleeved on the transmission shaft (8), and the input end of the reducer body (5) is sleeved on the first end of the coupling (6). The motor body (4) has its shaft connected to the second end of the coupling (6), and the motor body (4) is fixed on the mounting base plate (306).

2. The electric drive vibration damping testing system according to claim 1, characterized in that, The mounting base plate (306) is also provided with a drive adjustment component (9), which includes multiple control modules, including: a central processing module (901), a power reading module (902), a speed receiving module (903), a torque analysis module (904), an operation command module (905), a power adjustment module (906), and an emergency anti-breakdown module (907).

3. The electric drive vibration damping testing system according to claim 2, characterized in that, The drive adjustment component (9) further includes: Mounting box (908), which is fixed on the mounting base plate (306), has a mounting cavity with a top opening; A cover (909) is disposed at the opening of the mounting box (908).

4. The electric drive vibration damping testing system according to claim 3, characterized in that, The drive adjustment component (9) further includes: A control plate (910) is disposed in the mounting cavity of the mounting box (908), and a plurality of control modules are disposed on the control plate (910).

Images