New energy hollow motor shaft efficient cleaning equipment

Abstract

The invention discloses a new energy hollow motor shaft efficient cleaning device, and relates to the technical field of motor shaft cleaning, the new energy hollow motor shaft efficient cleaning device comprises a cleaning machine and a first assembly installed on the cleaning machine; through cooperation of the driving motor, the disc set and the linkage swing pipe, multi-angle adjustment of the spraying head is achieved, and the problem that a traditional fixed-angle spraying head cannot cover complex structures such as grooves and chamfers in the outer surface of a motor shaft is effectively solved. When a motor shaft with a groove in the outer surface is cleaned, the eccentric structure pulls the linkage swing pipe to swing downwards through the U-shaped rotating body, and high-pressure water flow can directly impact residual oil stains and fibers in the groove; when a motor shaft with a chamfer is cleaned, the spraying head is attached to the bevel of the chamfer, and cleaning dead corners caused by the fact that water flow rebounds along the chamfer are avoided. The angle adjusting function can be completed through the driving motor, the cleaning adaptation range of the equipment for motor shafts of different specifications is expanded, the same equipment can meet the cleaning requirements of the motor shafts of multiple models, and the equipment utilization rate is increased.

Description

Technical Field

[0001] This invention relates to the field of motor shaft cleaning technology, specifically to a high-efficiency cleaning device for hollow motor shafts in new energy applications. Background Technology

[0002] In the fields of new energy vehicles and new energy equipment, hollow motor shafts are core transmission components, and the cleanliness of their inner cavity and outer surface directly affects the transmission accuracy, heat dissipation efficiency, and service life of the motor. Currently, the industry mostly uses traditional high-pressure spray cleaning equipment for cleaning hollow motor shafts in new energy vehicles. Although such equipment can achieve basic cleaning through high-pressure water flow, in actual mass production, due to structural design defects, it has gradually exposed many technical pain points and is difficult to meet the cleaning needs of high-precision, multi-specification motor shafts.

[0003] Specifically, traditional cleaning equipment typically employs a rigid three-jaw structure for its clamping mechanism. The clamping force is fixed by mechanical limits, making it impossible to flexibly adjust according to the material and diameter of the motor shaft. For softer aluminum alloy motor shafts, excessive clamping force can easily cause shaft deformation; for smaller diameter motor shafts, insufficient clamping force can easily cause workpiece displacement during cleaning, resulting in uneven cleaning of the inner cavity and outer surface. Furthermore, the spraying system and clamping mechanism of traditional equipment are independent, with fixed spray head positions. When switching to clean motor shafts of different diameters, the distance between the spray head and the workpiece must be manually adjusted. This is not only cumbersome and time-consuming, but also prone to errors such as excessively large spray head distance leading to reduced water pressure, or excessively small distance causing water flow rebound, making it difficult to guarantee stable cleaning results and severely impacting mass production efficiency.

[0004] Furthermore, the outer surface of hollow motor shafts in new energy vehicles often features complex structures such as grooves and chamfers to accommodate assembly requirements. However, traditional cleaning equipment uses spray heads with fixed angles, which can only rinse the flat area of ​​the outer surface of the motor shaft. Areas such as the inside of grooves and chamfered surfaces cannot be effectively covered by water flow, creating cleaning dead zones that retain impurities and oil stains. This necessitates subsequent manual cleaning, increasing production steps and labor costs. In addition, while some improved equipment attempts to adjust the spray head amplitude through program control, this relies on sensors to monitor the motor shaft's structural parameters in real time. This not only results in a complex control system and high maintenance costs, but also slow parameter switching response when facing multi-specification, small-batch production demands, making it difficult to adapt to rapid production pace. Furthermore, program malfunctions can lead to uncontrolled amplitude adjustment, affecting cleaning stability.

[0005] Therefore, a high-efficiency cleaning device for hollow motor shafts in new energy sources is proposed to solve the above problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a high-efficiency cleaning device for hollow motor shafts in new energy applications, thereby solving the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency cleaning device for hollow motor shafts of new energy, comprising: a cleaning machine and a first component installed thereon, the first component comprising: a gripper assembly disposed inside the cleaning machine for connecting multiple components, the bottom of the gripper assembly being fixedly connected to an arc-shaped positioning body, the arc-shaped positioning body being an arc-shaped body, and liquid cavities being symmetrically fixedly connected to the inner surface of the arc-shaped positioning body. The first component also includes: an auxiliary spring fixedly connected to the liquid cavity, wherein a plug body is fixedly connected to one end of the auxiliary spring away from the liquid cavity, the plug body is slidably connected to the liquid cavity, and a serrated surface is fixedly connected to the side of the plug body away from the liquid cavity; The second component is used to link the first and third components.

[0008] Preferably, the cleaning machine is equipped with a filter element, which is connected to a water pipe leading to the inside of the cleaning machine. A chassis is fixedly connected inside the cleaning machine, and a spindle is mounted on the chassis. A top plate is located directly above the chassis and is fixedly connected to it by a column rod. A three-jaw rotating element is located in the center of the side of the top plate near the chassis. The three-jaw rotating element is controlled by an external power source. An inclined collection plate and a collection chamber are provided inside the cleaning machine below the chassis.

[0009] Preferably, the gripper assembly has three equidistant rings arranged around the center of the three-jaw rotating element, the liquid cavity contains magnetorheological fluid and an electromagnetic coil, and the electromagnetic coil is controlled by an external controller. The connector is composed of a column rod and an arc-shaped block.

[0010] Preferably, the second component includes: a guide rail ring fixedly connected to the outer ring of the three-jaw rotating element, a straight groove is provided on one side of the guide rail ring, guide groove strips are fixedly connected to both sides of the top plate near the bottom plate, a guide rod is slidably connected in the straight groove, and a drive wheel set is fixedly connected to both ends of the guide rod, and the drive wheel set is slidably connected in the guide groove strip; The third component is used for: adjusting the angle of the hollow motor shaft body according to different diameters and outer surface structures.

[0011] Preferably, the two guide rails have grooves on their symmetrical surfaces, the guide rod consists of two perpendicular rods, and the drive wheel assembly consists of a rotating wheel and a transmission wheel.

[0012] Preferably, a connecting rod is fixedly connected to the side of the drive wheel assembly away from the three-jaw self-rotating element, and a synchronous wheel assembly is fixedly connected to the end of the connecting rod away from the drive wheel assembly. A connecting frame is fixedly connected to the middle of the two sets of synchronous wheel assemblies. An axial groove is provided at the bottom of the connecting frame, and the axial groove is fixedly connected to the chassis. The bottom of the connecting frame is slidably connected to the axial groove.

[0013] Preferably, the synchronous wheel set consists of a rotating wheel and a transmission wheel, the connecting frame consists of a sliding rod and a plurality of fixedly connected rectangular frames, and the two ends of the connecting rod are respectively connected to the transmission wheel in the drive wheel set and the synchronous wheel set.

[0014] Preferably, the third component includes: a drive motor fixedly connected within a rectangular frame; a disk assembly fixedly connected to the output shaft of the drive motor; the disk assembly consisting of an annular body and a bent plate with a rectangular through hole at an eccentric position; threaded holes symmetrically opened on both sides of the rectangular through hole; a positioning assembly fixedly connected to the threaded hole by threads; a U-shaped rotating body fixedly connected to the end of the positioning assembly away from the threaded hole; a linkage swing tube rotatably connected to the end of the U-shaped rotating body away from the positioning assembly; a spray head fixedly connected to one end of the linkage swing tube; and a liquid-passing pipe fixedly connected to one side of the connecting frame.

[0015] Preferably, multiple drive motors are provided and are located on the same vertical line. The positioning group consists of a positioning plate and a round rod. The spray head and the linkage swing tube are set in a vertical state on the same horizontal plane. The liquid passage tube is connected to the water pipe on the filter element. The linkage swing tube is rotatably connected to the liquid passage tube, and the spray head is connected to the liquid passage tube through the linkage swing tube.

[0016] Compared with the prior art, the present invention provides a high-efficiency cleaning device for hollow motor shafts in new energy applications, which has the following beneficial effects: 1. By configuring the first component, a flexible clamping system is constructed through the cooperation of the magnetorheological fluid and the electromagnetic coil within the liquid cavity, offering significant advantages over traditional rigid clamping. Firstly, the magnetorheological fluid's current can be adjusted via an external controller to achieve linear changes in shear strength. For hollow motor shafts made of soft materials such as aluminum alloys, reducing the current keeps the magnetorheological fluid in a low-hardness state, forming a buffer with the auxiliary spring to prevent shaft deformation due to excessive clamping force. For motor shafts made of hard materials such as steel, increasing the current enhances the hardness of the magnetorheological fluid, ensuring sufficient clamping force to resist the impact of the motor shaft's rotation and vertical movement during cleaning, effectively solving the problem of workpiece deformation or displacement caused by uncontrollable force in traditional equipment. Secondly, the rapid response characteristics of the magnetorheological fluid can adapt to minute errors on the outer surface of the motor shaft in real time during clamping, resulting in a tighter fit between the serrated surface and the shaft, improved clamping stability, reduced risk of uneven cleaning due to workpiece movement, and lower workpiece scrap rate.

[0017] 2. Through the design of the second component, the distance between the spray head and the motor shaft can be adaptively adjusted without manual intervention. When the gripper of the first component retracts and clamps towards the center of the motor shaft, its magnetic attraction with the guide rod pulls the guide rod to slide along the straight groove. This, in turn, drives the synchronous wheel set and the connecting frame to move through the drive wheel set and connecting rod, ultimately causing the spray head of the third component to move closer to or further away from the motor shaft in sync with the clamping action. This linkage structure ensures that the spray head and the shaft surface always maintain the optimal spraying distance, regardless of the diameter of the motor shaft. This avoids excessive distance leading to pressure attenuation of high-pressure water and insufficient rinsing force, and also prevents excessive distance from causing water flow rebound and localized over-rinsing. At the same time, the linkage adjustment does not require program calibration or manual adjustment, has a fast response speed, and the distance adjustment is synchronized with the completion of the clamping action. In mass production, this can reduce specification changeover time and significantly improve cleaning efficiency.

[0018] 3. By coordinating the drive motor, disc assembly, and linkage swing tube, multi-angle adjustment of the spray head is achieved, effectively solving the problem that traditional fixed-angle spray heads cannot cover complex structures such as grooves and chamfers on the outer surface of the motor shaft. When cleaning a motor shaft with grooves on the outer surface, the drive motor is started to rotate the disc assembly. Its eccentric structure pulls the linkage swing tube downward through the U-shaped rotating body, so that the spray head is aligned with the inside of the groove. The high-pressure water flow can directly impact the residual oil stains and fibers in the groove. When cleaning a motor shaft with chamfers, the direction of the drive motor is adjusted so that the linkage swing tube swings upward, and the spray head fits against the chamfered surface, avoiding cleaning dead angles caused by water flow rebounding along the chamfer. This angle adjustment function can be completed by the drive motor, expanding the equipment's adaptability to cleaning motor shafts of different specifications. The same equipment can meet the cleaning needs of multiple models of motor shafts, improving equipment utilization.

[0019] 4. By coordinating the position of the screw hole and the U-shaped rotating body, the spray head's swing amplitude can be precisely and controllably adjusted, further improving its adaptability to cleaning different motor shaft outer surface structures. Operators can adjust the threaded connection position of the positioning group within the screw hole according to parameters such as the groove depth and chamfer slope of the motor shaft's outer surface. If the groove depth is large, adjusting the positioning group outward from the screw hole increases the swing stroke of the U-shaped rotating body, expanding the spray head's swing amplitude and ensuring the water flow penetrates deep into the groove to remove stubborn impurities. If the groove is shallow or the chamfer is gentle, adjusting the positioning group inward from the screw hole reduces the swing stroke of the U-shaped rotating body, controlling the spray head's swing amplitude and preventing excessive swing that could lead to water dispersion and reduced rinsing power. This matches the cleaning needs of motor shafts with different structures, improving the removal rate of impurities from the motor shaft's outer surface, reducing subsequent manual cleaning steps, and lowering overall production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a diagram of the overall interior structure of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a structural diagram of the first component of the present invention; Figure 5 This is a disassembled structural diagram of the first component of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a structural diagram of the first and second components of the present invention; Figure 8 This is a structural diagram of the second and third components of the present invention; Figure 9 This is a structural diagram of the third component of the present invention; Figure 10 This is a disassembled structural diagram of the third component of the present invention.

[0021] In the picture: 11. Cleaning machine; 12. Filter element; 13. Chassis; 14. Top plate; 15. Three-jaw self-rotating element; First Component 21. Grip clamp integrated unit; 22. Arc-shaped positioning body; 23. Liquid cavity; 24. Auxiliary spring; 25. Insertion body; 26. Serrated surface; Second component 31. Guide rail ring; 32. Straight groove; 33. Guide rod; 34. Guide groove bar; 35. Drive wheel assembly; 36. Connecting rod; 37. Synchronous pulley assembly; 38. Connecting frame; 39. Axial groove bar; Third Component 41. Drive motor; 42. Disc assembly; 43. Screw hole; 44. Positioning assembly; 45. U-shaped rotating body; 46. Linkage swing tube; 47. Liquid passage pipe; 48. Spray head. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Example

[0024] Please refer to Figures 1 to 6 As shown: To address the problems mentioned in the technical solutions, this application provides a high-efficiency cleaning device for hollow motor shafts in new energy applications, including: a cleaning machine 11 and a first component installed thereon. The first component includes: a gripper assembly 21 disposed within the cleaning machine 11 for connecting multiple components. An arc-shaped positioning body 22 is fixedly connected to the bottom of the gripper assembly 21. The arc-shaped positioning body 22 is an arc shape, and a liquid cavity 23 is symmetrically fixedly connected to the inner surface of the arc-shaped positioning body 22. The first component also includes: an auxiliary spring 24 fixedly connected to the liquid cavity 23, with a plug body 25 fixedly connected to one end of the auxiliary spring 24 away from the liquid cavity 23, the plug body 25 slidably connected to the liquid cavity 23, and a serrated surface 26 fixedly connected to the side of the plug body 25 away from the liquid cavity 23, the serrated surface 26 being used to cooperate with the gripper assembly 21 to clamp the hollow motor shaft under the drive of the three-jaw self-rotating element 15; The second component is used to link the first and third components.

[0025] The cleaning machine 11 is equipped with a filter element 12, which is connected to a water pipe into the cleaning machine 11. The cleaning machine 11 uses a high-pressure water pump to draw high-pressure water, cleaning fluid, and rust inhibitor into the filter element 12 for spraying. A base 13 is fixedly connected inside the cleaning machine 11. A spindle is installed on the base 13, and a hollow motor shaft is placed on the base 13 and roughly positioned by the spindle. The spindle sprays water to clean the inner cavity of the hollow motor shaft. A top plate 14 is set directly above the base 13 and is fixedly connected to a column. A three-jaw rotating element 15 is set in the middle of the side of the top plate 14 near the base 13. The three-jaw rotating element 15 is controlled by an external power source and is used to grip and position the workpiece and is driven to rotate by the external power source. An inclined collection plate and a collection chamber are set inside the cleaning machine 11 below the base 13. The collection chamber is used to collect foreign objects and impurities during the rinsing of the motor shaft.

[0026] The gripper assembly 21 has three equidistant rings around the center of the three-jaw rotating element 15. The liquid cavity 23 contains magnetorheological fluid and an electromagnetic coil, and the electromagnetic coil is controlled by an external controller. The magnetorheological fluid is used to provide flexible clamping force when the connector 25 and the serrated surface 26 are used to clamp the hollow motor shaft, so as to avoid deformation and damage to the hollow motor shaft due to excessive clamping force. The connector 25 is composed of a column and an arc block.

[0027] The second component includes: a guide rail ring 31 fixedly connected to the outer ring of the three-jaw rotating element 15; a straight groove 32 is provided on one side of the guide rail ring 31; the straight groove 32 is used to limit the movement of the guide rod 33 when the three-jaw rotating element 15 controls the gripper assembly 21 to retract linearly towards the center; guide groove strips 34 are fixedly connected to both sides of the top plate 14 near the bottom plate 13; a guide rod 33 is laterally slidably connected in the straight groove 32; the middle part of the guide rod 33 is made of magnetic material and is magnetically connected to the gripper assembly 21; when the gripper assembly 21 moves in the center, it pulls the guide rod 33 and other components under the magnetic attraction between the guide rod 33 and the third component to move towards the three-jaw rotating element 15; drive wheel sets 35 are fixedly connected to both ends of the guide rod 33; the drive wheel sets 35 are slidably connected in the guide groove strips 34. The third component is used for: adjusting the angle of the hollow motor shaft body according to different diameters and outer surface structures.

[0028] The two guide bars 34 have grooves on their symmetrical surfaces. The guide rod 33 consists of two rods that are perpendicular to each other. The drive wheel set 35 consists of a rotating wheel and a transmission wheel.

[0029] A connecting rod 36 is fixedly connected to the side of the drive wheel assembly 35 away from the three-jaw self-rotating element 15. A synchronous wheel assembly 37 is fixedly connected to the end of the connecting rod 36 away from the drive wheel assembly 35. A connecting frame 38 is fixedly connected in the middle of the two synchronous wheel assemblies 37. An axial groove 39 is provided at the bottom of the connecting frame 38, and the axial groove 39 is fixedly connected to the chassis 13. The bottom of the connecting frame 38 is slidably connected to the axial groove 39.

[0030] The synchronous pulley set 37 consists of a rotating wheel and a transmission wheel. The connecting frame 38 consists of a sliding rod and multiple fixedly connected rectangular frames. The two ends of the connecting rod 36 are respectively connected to the transmission wheel in the drive pulley set 35 and the synchronous pulley set 37.

[0031] A further embodiment: Please refer to Figures 7 to 10 As shown: The third component includes: a drive motor 41 fixedly connected to the rectangular frame in the connecting frame 38; a disc assembly 42 fixedly connected to the output shaft of the drive motor 41; the disc assembly 42 consists of a ring and a bent plate with a rectangular through hole at the eccentric position; screw holes 43 are symmetrically opened on both sides of the rectangular through hole; the swing amplitude of the linkage swing tube 46 and the spray head 48 can be indirectly adjusted by adjusting the threaded connection position of the positioning assembly 44 and the screw hole 43 to adapt to the groove and chamfer angle of the outer surface of the motor shaft of different specifications; the positioning assembly 44 is fixedly connected to the screw hole 43 by threads; a U-shaped rotating body 45 is fixedly connected to the end of the positioning assembly 44 away from the screw hole 43; the linkage swing tube 46 is rotatably connected to the end of the U-shaped rotating body 45 away from the positioning assembly 44; a spray head 48 is fixedly connected to one end of the linkage swing tube 46; the spray head 48 is used to spray cleaning liquid onto the hollow motor shaft; and a liquid passage pipe 47 is fixedly connected to one side of the connecting frame 38.

[0032] Multiple drive motors 41 are provided and are located on the same vertical line. The positioning group 44 consists of a positioning plate and a round rod. The spray head 48 and the linkage swing pipe 46 are set in a vertical state on the same horizontal plane. The liquid pipe 47 is connected to the water pipe on the filter element 12. The linkage swing pipe 46 and the liquid pipe 47 are rotatably connected, and the spray head 48 is connected to the liquid pipe 47 through the linkage swing pipe 46.

[0033] The working principle of all the content in the above embodiments is as follows: The following is the working process of the first component: When in use, the operator places the hollow motor shaft to be cleaned on the chassis 13 inside the cleaning machine 11. The coarse positioning is completed by the spindle on the chassis 13 to ensure that the center of the motor shaft is aligned with the rotation axis of the three-jaw rotating element 15. At this time, the three gripping clamps 21 are equidistantly surrounded by the center of the three-jaw rotating element 15 and are in an open state. The inner surface of the arc-shaped positioning body 22 faces the outer wall of the motor shaft to prepare for subsequent clamping. After the cleaning machine 11 is started, the external power supply drives the internal components of the three-jaw rotating element 15 to control the three gripper linkages 21 to move linearly towards the motor shaft in the middle of the three-jaw rotating element 15. During this process, the arc-shaped positioning body 22 and the liquid cavity 23, along with other components, drive the serrated surface 26 to synchronously approach the outer surface of the motor shaft until the serrated surface 26 is in contact with the outer wall of the upper end of the motor shaft. As the gripper linkages 21 move towards the middle of the three-jaw rotating element 15, indirectly driving the serrated surface 26 to continuously move towards the outer wall of the motor shaft, the serrated surface 26 continues to adhere to the outer wall of the motor shaft. Under the action of the resistance between the two, the serrated surface 26 is subjected to the squeezing force of the motor shaft, causing it to move into the liquid cavity 23. The auxiliary spring 24 is compressed to store elastic potential energy. Then, after the serrated surface 26 is in complete contact with the motor shaft, the external controller energizes the electromagnetic coil in the liquid cavity 23, causing the magnetic... The magnetorheological fluid transforms from a liquid to a semi-solid state. Operators can control the supporting force of the magnetorheological fluid by adjusting the current parameters according to the material and diameter of the motor shaft. For motor shafts with smaller diameters or softer materials, the current is reduced to lower the hardness of the magnetorheological fluid, and the auxiliary spring 24, in conjunction with the low-hardness magnetorheological fluid, provides a gentle clamping force. For motor shafts with larger diameters or harder materials, the current is increased to increase the hardness of the magnetorheological fluid, ensuring that the clamping force is sufficient to resist the impact force during subsequent rotation and cleaning. Then, the serrated surface 26 cooperates with the gripper assembly 21 to achieve a non-damaging clamping of the motor shaft under the flexible buffer of the magnetorheological fluid, while avoiding displacement caused by excessively loose clamping. After clamping and fixing, the external power supply drives the three-jaw rotating element 15 to rotate, and the gripper assembly 21 synchronously drives the motor shaft to rotate with the three-jaw rotating element 15, providing rotational power for subsequent high-pressure cleaning.

[0034] Furthermore, when the gripper assembly 21 of the first component retracts linearly towards the center of the motor shaft, the magnetic connection between the gripper assembly 21 and the magnetic material area in the middle of the guide rod 33 generates a magnetic attraction force as the gripper assembly 21 moves towards the center. This force pulls the guide rod 33 laterally within the linear groove 32 of the guide rail ring 31. The linear groove 32 provides precise positioning for the movement of the guide rod 33, preventing it from deviating. Simultaneously, the drive wheel sets 35, fixedly connected to both ends of the guide rod 33, move synchronously with the guide rod 33, sliding within the guide groove 34 fixed below the top plate 14, ensuring the stability of the guide rod 33 during movement. When the drive wheel assembly 35 moves, the side away from the three-jaw rotating element 15 drives the synchronous wheel assembly 37 to move via the connecting rod 36. The two ends of the connecting rod 36 are fixedly connected to the transmission wheels of the drive wheel assembly 35 and the synchronous wheel assembly 37, respectively, converting the lateral displacement of the drive wheel assembly 35 into the same-direction displacement of the synchronous wheel assembly 37. The movement of the synchronous wheel assembly 37 further drives the connecting frame 38, which is fixedly connected to its middle, to slide along the axial groove 39 fixed on the chassis 13 towards the direction of the motor shaft fixed to the three-jaw rotating element 15. When the gripper assembly 21 clamps motor shafts of different diameters, the moving distance of the guide rod 33 is inversely proportional to the diameter of the motor shaft: the larger the diameter of the motor shaft, the greater the retraction distance of the gripper assembly 21 and the greater the pulling distance of the guide rod 33; thus, the connecting frame 38 and the third component move a corresponding distance towards the three-jaw rotating element 15, ultimately ensuring that the spray head 48 of the third component maintains a preset optimal distance from the outer surface of the motor shaft, avoiding uneven spraying caused by excessive distance; when the motor shaft enters the rotating cleaning state, the guide rod 33 disengages from the gripper assembly 21 and remains fixed in position under the limit of the guide groove strip 34, ensuring a stable spraying distance.

[0035] By configuring the first component, a flexible clamping system is constructed in conjunction with the magnetorheological fluid and electromagnetic coil within the liquid cavity 23, offering significant advantages over traditional rigid clamping. Firstly, the magnetorheological fluid's current can be adjusted via an external controller to achieve linear changes in shear strength. For hollow motor shafts made of soft materials such as aluminum alloys, reducing the current keeps the magnetorheological fluid in a low-hardness state, forming a buffer with the auxiliary spring 24 to prevent shaft deformation due to excessive clamping force. For motor shafts made of hard materials such as steel, increasing the current enhances the hardness of the magnetorheological fluid, ensuring sufficient clamping force to resist the impact of the motor shaft's rotation and vertical movement during cleaning, effectively solving the problem of workpiece deformation or displacement caused by uncontrollable force in traditional equipment. Secondly, the rapid response characteristics of the magnetorheological fluid allow it to adapt to minute errors on the outer surface of the motor shaft in real time during clamping, resulting in a tighter fit between the serrated surface 26 and the shaft, improved clamping stability, reduced risk of uneven cleaning due to workpiece movement, and lower workpiece scrap rate.

[0036] The second component allows for adaptive adjustment of the distance between the spray head and the motor shaft without manual intervention. When the gripper assembly 21 of the first component retracts and clamps towards the center of the motor shaft, its magnetic attraction with the guide rod 33 pulls the guide rod 33 to slide along the straight groove 32. This, in turn, drives the synchronous wheel assembly 37 and the connecting frame 38 to move via the drive wheel set 35 and the connecting rod 36. Ultimately, this causes the spray head 48 of the third component to move closer to or further away from the motor shaft in sync with the clamping action. This linkage structure ensures that the spray head and the shaft surface always maintain the optimal spraying distance, regardless of the diameter of the motor shaft. This avoids excessive distance leading to pressure attenuation and insufficient rinsing force, and also prevents excessive distance causing water flow rebound and localized over-rinsing. At the same time, the linkage adjustment requires no program calibration or manual adjustment, has a fast response speed, and the distance adjustment is synchronized with the completion of the clamping action. In mass production, this reduces specification changeover time and significantly improves cleaning efficiency.

[0037] Please refer to the above work process. Figures 1 to 6 .

[0038] The following is the working process of the second component: During use, before cleaning, the connecting frame 38 of the third component is in the initial position of the axial groove 39. One end of the liquid pipe 47 is connected to the water pipe on the filter element 12, and the other end is rotatably connected to the linkage swing pipe 46 to ensure that the mixture of high-pressure water, cleaning fluid and rust inhibitor can be stably delivered to the spray head 48. At this time, the spray head 48 and the linkage swing pipe 46 are in a vertical state on the same horizontal plane, aligned with the outer surface area of ​​the motor shaft. Based on the structural parameters such as the groove depth and chamfer angle on the outer surface of the motor shaft, the operator starts the drive motor 41, which is fixed within the rectangular frame of the connecting frame 38. The output shaft of the drive motor 41 drives the disc assembly 42 to rotate, and during this rotation, it drives the U-shaped rotating body 45 to move through an eccentric structure. Simultaneously, the operator can adjust the threaded connection position between the positioning assembly 44 and the screw hole 43 on the disc assembly 42: if the groove on the motor shaft is deep or the chamfer angle is large, the positioning assembly 44 is adjusted outward from the screw hole 43 to increase the swing amplitude of the U-shaped rotating body 45; if the structure is relatively flat, the positioning assembly 44 is adjusted inward to reduce the swing amplitude, thus adapting to the outer surface structure of hollow motor shafts with different structures. The rotation of the disc assembly 42 drives the U-shaped rotating body 45 to swing around its connection point with the positioning assembly 44. The U-shaped rotating body 45 then pulls the linkage swing tube 46 to swing synchronously. Since the linkage swing tube 46 is rotatably connected to the liquid pipe 47, the fluid delivery will not be affected during the swing. The spray head 48 is fixed at one end of the linkage swing tube 46 and adjusts its angle with the linkage swing tube 46 to ensure that the water flow can accurately spray into the groove or chamfered surface of the outer surface of the motor shaft. At the same time, under the linkage action of the second component, the spray head 48 maintains the optimal distance from the outer surface of the motor shaft. With the rotation and up and down movement of the motor shaft, high-pressure cleaning of the outer surface of the motor shaft is achieved without dead angles. After cleaning, the drive motor 41 reverses and drives all components to reset, waiting for the next cleaning cycle.

[0039] By cooperating with the drive motor 41, the disc assembly 42, and the linkage swing tube 46, the spray head can be adjusted at multiple angles, effectively solving the problem that traditional fixed-angle spray heads cannot cover complex structures such as grooves and chamfers on the outer surface of the motor shaft. When cleaning a motor shaft with grooves on the outer surface, the drive motor 41 is started to rotate the disc assembly 42. Its eccentric structure pulls the linkage swing tube 46 downward through the U-shaped rotating body 45, so that the spray head 48 is aligned with the inside of the groove. The high-pressure water flow can directly impact the oil stains and fibers remaining in the groove. When cleaning a motor shaft with chamfers, the direction of the drive motor 41 is adjusted so that the linkage swing tube 46 swings upward, and the spray head 48 fits against the chamfered surface, avoiding cleaning dead angles caused by water flow rebounding along the chamfer. This angle adjustment function can be completed by the drive motor 41, expanding the equipment's adaptability to cleaning motor shafts of different specifications. The same equipment can meet the cleaning needs of multiple models of motor shafts, improving equipment utilization.

[0040] By coordinating the position of the screw hole 43 and the U-shaped rotating body 45, the swing amplitude of the spray head 48 can be precisely and controllably adjusted, further improving the cleaning adaptability to different motor shaft outer surface structures. Operators can adjust the threaded connection position of the positioning group 44 within the screw hole 43 according to parameters such as the groove depth and chamfer slope of the motor shaft outer surface. If the groove depth is large, the positioning group 44 is adjusted outward from the screw hole 43 to increase the swing stroke of the U-shaped rotating body 45, thus expanding the swing amplitude of the spray head 48 and ensuring that the water flow can penetrate deep into the groove to remove stubborn impurities. If the groove is shallow or the chamfer is gentle, the positioning group 44 is adjusted inward from the screw hole 43 to reduce the swing stroke of the U-shaped rotating body 45, thus controlling the swing amplitude of the spray head 48 and preventing excessive swinging that could lead to water dispersion and reduced rinsing force. This matches the cleaning needs of motor shafts with different structures, improving the impurity removal rate on the motor shaft outer surface, reducing subsequent manual rewashing, and lowering the overall production cost.

[0041] Please refer to the above work process. Figures 7 to 10 .

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cleaning device for hollow motor shafts in new energy applications, comprising: The cleaning machine (11) and the first component installed thereon are characterized in that: the first component includes: a gripper assembly (21) disposed in the cleaning machine (11) for connecting multiple components, wherein an arc-shaped positioning body (22) is fixedly connected to the bottom of the gripper assembly (21), the arc-shaped positioning body (22) is an arc-shaped body, and a liquid cavity (23) is symmetrically fixedly connected to the inner surface of the arc-shaped positioning body (22). The first component also includes: an auxiliary spring (24) fixedly connected to the liquid cavity (23), the auxiliary spring (24) having a plug body (25) fixedly connected to one end away from the liquid cavity (23), the plug body (25) being slidably connected to the liquid cavity (23), and a serrated surface (26) fixedly connected to one side of the plug body (25) away from the liquid cavity (23). The second component is used to link the first and third components.

2. The high-efficiency cleaning equipment for hollow motor shafts of new energy vehicles according to claim 1, characterized in that: The cleaning machine (11) is equipped with a filter element (12), and the filter element (12) is connected to a water pipe to the cleaning machine (11). A chassis (13) is fixedly connected inside the cleaning machine (11). A spindle is installed on the chassis (13). A top plate (14) is set directly above the chassis (13) and is fixedly connected by a column rod. A three-jaw rotating element (15) is set in the middle of the side of the top plate (14) near the chassis (13). The three-jaw rotating element (15) is controlled by an external power source. An inclined collection plate and a collection chamber are set inside the cleaning machine (11) below the chassis (13).

3. The high-efficiency cleaning equipment for hollow motor shafts in new energy vehicles according to claim 1, characterized in that: The gripper assembly (21) has three equidistant rings around the center of the three-jaw rotating element (15). The liquid cavity (23) contains magnetorheological fluid and an electromagnetic coil, and the electromagnetic coil is controlled by an external controller. The connector (25) consists of a column and an arc block.

4. The high-efficiency cleaning equipment for hollow motor shafts in new energy vehicles according to claim 2, characterized in that: The second component includes: a guide ring (31) fixedly connected to the outer ring of the three-jaw rotating element (15), a straight groove (32) is provided on one side of the guide ring (31), guide groove strips (34) are fixedly connected to both sides of the top plate (14) near the bottom plate (13), a guide rod (33) is slidably connected in the straight groove (32), and a drive wheel set (35) is fixedly connected to both ends of the guide rod (33), and the drive wheel set (35) is slidably connected in the guide groove strip (34); The third component is used for: adjusting the angle of the hollow motor shaft body according to different diameters and outer surface structures.

5. The high-efficiency cleaning equipment for hollow motor shafts in new energy vehicles according to claim 4, characterized in that: The two guide bars (34) have grooves on their symmetrical surfaces. The guide rod (33) consists of two rods that are perpendicular to each other. The drive wheel assembly (35) consists of a rotating wheel and a transmission wheel.

6. The high-efficiency cleaning equipment for hollow motor shafts in new energy vehicles according to claim 4, characterized in that: A connecting rod (36) is fixedly connected to the side of the drive wheel assembly (35) away from the three-jaw self-rotating element (15). A synchronous wheel assembly (37) is fixedly connected to the end of the connecting rod (36) away from the drive wheel assembly (35). A connecting frame (38) is fixedly connected in the middle of the two sets of synchronous wheel assemblies (37). An axial groove (39) is provided at the bottom of the connecting frame (38), and the axial groove (39) is fixedly connected to the chassis (13). The bottom of the connecting frame (38) is slidably connected to the axial groove (39).

7. The high-efficiency cleaning equipment for hollow motor shafts of new energy vehicles according to claim 6, characterized in that: The synchronous wheel set (37) consists of a rotating wheel and a transmission wheel. The connecting frame (38) consists of a sliding rod and multiple fixedly connected rectangular frames. The two ends of the connecting rod (36) are respectively connected to the transmission wheel in the drive wheel set (35) and the synchronous wheel set (37).

8. The high-efficiency cleaning equipment for hollow motor shafts of new energy vehicles according to claim 6, characterized in that: The third component includes: a drive motor (41) fixedly connected inside a rectangular frame, the output shaft of the drive motor (41) being fixedly connected to a disc assembly (42), the disc assembly (42) being composed of a ring body and a bent plate with a rectangular through hole at the eccentric position, screw holes (43) being symmetrically opened on both sides of the rectangular through hole, a positioning assembly (44) being fixedly connected inside the screw hole (43) by threads, a U-shaped rotating body (45) being fixedly connected to one end of the positioning assembly (44) away from the screw hole (43), a linkage swing tube (46) being rotatably connected to one end of the U-shaped rotating body (45) away from the positioning assembly (44), a spray head (48) being fixedly connected to one end of the linkage swing tube (46), and a liquid pipe (47) being fixedly connected to one side of the connecting frame (38).

9. The high-efficiency cleaning equipment for hollow motor shafts of new energy vehicles according to claim 8, characterized in that: Multiple drive motors (41) are provided and are located on the same vertical line. The positioning group (44) consists of a positioning plate and a round rod. The spray head (48) and the linkage swing pipe (46) are set in a vertical state on the same horizontal plane. The liquid pipe (47) is connected to the water pipe on the filter element (12). The linkage swing pipe (46) and the liquid pipe (47) are rotatably connected. The spray head (48) is connected to the liquid pipe (47) through the linkage swing pipe (46).

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