Unhooking mechanism and remote unhooking system for new energy vehicle dynamic rotating hub test

Abstract

The invention discloses an unhooking mechanism and a remote unhooking system for a dynamic rotating hub test of a new energy vehicle, and relates to the technical field of unhooking mechanisms, and the unhooking mechanism comprises a hook frame which is disposed in a test cabin; the two groups of coupler knuckle pieces are respectively arranged on the upper side and the lower side of the opening end of the coupler frame in a sliding manner and comprise fixed coupler knuckles and movable coupler knuckles, the fixed coupler knuckles and the movable coupler knuckles are elastically hinged, and the movable coupler knuckles are close to the inner side of the coupler frame; the lock seat is arranged in the hook frame in a sliding manner and is connected with the hook frame through an elastic telescopic rod; and the locking assembly is arranged between the hook frame and the lock seat. According to the unhooking mechanism for the dynamic rotating hub test of the new energy whole vehicle, by arranging the locking assembly, the transmission assembly and other structures, the double-automatic-unlocking working condition design of stable unhooking and emergency rapid unhooking is formed, the unhooking stability and the part durability in a conventional test scene are guaranteed, the rapid evacuation requirement in an emergency scene can be met, and the unhooking efficiency is improved. The unhooking and unlocking logic is enriched, and the adaptability of the device to different scenes is improved.

Description

Technical Field

[0001] This invention relates to the field of uncoupling mechanism technology, and in particular to an uncoupling mechanism and remote uncoupling system for dynamic hub rotation testing of new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the importance of vehicle performance testing has become increasingly prominent. Among these tests, the dynamic wheel rotation test is a key test item for evaluating core indicators such as the power performance, range, and braking performance of new energy vehicles. During the dynamic wheel rotation test, the new energy vehicle needs to be fixed in a closed test chamber, and different driving conditions are simulated by rotating the wheel to accurately obtain various performance data of the vehicle.

[0003] Existing unhooking mechanisms typically involve spiral insertion for fixing or removal for unhooking, requiring close manual operation. This not only increases the workload of operators but also results in slow response times, making it difficult to handle sudden emergencies such as vehicle battery overheating or fires during testing. This can easily delay emergency evacuation and affect testing efficiency and safety.

[0004] Therefore, it is necessary to propose a disengagement mechanism and a remote disengagement system for dynamic hub rotation testing of new energy vehicles to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a disengagement mechanism and remote disengagement system for dynamic drum rotation testing of new energy vehicles, in order to solve the problems of existing disengagement mechanisms, which are usually spiral-type insertion and fixation or removal and disengagement, requiring close-range manual operation. This not only increases the workload of operators, but also has a slow response speed, making it difficult to deal with sudden emergencies such as overheating of vehicle batteries or fires during the test, which can easily delay the emergency evacuation time and affect the efficiency and safety of the test.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a decoupling mechanism for dynamic hub rotation testing of new energy vehicles, comprising: The hook frame is installed inside the test chamber; Two sets of hook tongues are slidably disposed on the upper and lower sides of the hook frame opening, including a fixed hook tongue and a movable hook tongue. The fixed hook tongue and the movable hook tongue are elastically hinged, and the movable hook tongue is close to the inner side of the hook frame. The lock seat is slidably installed inside the hook frame and connected to the hook frame via an elastic telescopic rod; A locking component, located between the hook and the lock seat, is used to lock or adjust the position of the lock seat; When hooking, the drag ring enters the hook frame and contacts the lock seat, squeezing the elastic telescopic rod. At the same time, the transmission component drives the two sets of hook tongues to move towards each other to close the open end of the hook frame. When the lock seat is released, the elastic telescopic rod drives the lock seat to reset, causing the two sets of hook tongues to move in opposite directions to open the hook frame opening for the hook frame to be pulled out; when the lock seat continues to press the elastic telescopic rod, the two sets of hook tongues continue to move towards each other, the moving hook tongue disengages from the hook frame limit, and the drag ring moves to press the moving hook tongue to make it rotate and create clearance space.

[0007] Preferably, the fixed hook tongue is fixed to a shaft at one end near the movable hook tongue, the movable hook tongue is rotatably mounted on the shaft, and a torsion spring is fitted on the shaft.

[0008] Preferably, the movable hook tongue has an arc-shaped portion and a right-angled portion at one end near the fixed hook tongue, with the right-angled portion near the lock seat.

[0009] Preferably, the hook frame has slides extending through both the upper and lower sides, and the hook tongue is slidably disposed within the corresponding slide.

[0010] Preferably, the transmission assembly includes a moving channel, an ear plate, a connecting plate, a guide groove, and a guide rod, used to convert the linear movement of the lock seat into the opposite or opposite movement of two sets of hook tongues.

[0011] Preferably, the locking assembly includes a cylinder, a through groove, a limiting frame, a limiting groove, and an electric push rod, wherein the cylinder is fixed on the lock seat, the through groove is opened on the hook frame, the limiting frame slides in the through groove and cooperates with the electric push rod, and the position of the lock seat is controlled by the locking engagement between the limiting groove and the cylinder.

[0012] Preferably, the limiting groove is provided with a locking groove section, an inclined groove section and a release groove section in sequence in the direction away from the inner side of the hook frame. The locking groove section is used to engage the cylinder to lock the lock seat, and the inclined groove section is used to guide the cylinder from the locking groove section to the release groove section to control the lock seat to continue to compress the elastic telescopic rod.

[0013] Preferably, one of the moving hook tongues has a tongue groove and a locking groove, which are L-shaped and interconnected. A movable plate is rotatably installed in the tongue groove via a groove rod. A locking tongue is fixedly connected to the other moving hook tongue, which is inserted into the locking groove. When the moving hook tongue is disengaged from the hook frame limit, the movable plate can swing away from the locking groove.

[0014] Preferably, the inner wall of the slide is provided with ball bearings.

[0015] This invention also discloses a remote uncoupling system for dynamic drum rotation testing of new energy vehicles, applied to the uncoupling mechanism of the aforementioned dynamic drum rotation test of new energy vehicles. The system includes a remote command interaction module, a working condition identification and decision-making module, a drive control module, a status monitoring feedback module, and a dual-power supply guarantee module. Each module constructs a collaborative control network through a wired Ethernet and a wireless backup communication link.

[0016] The technical effects and advantages of this invention are as follows: 1. By setting up locking components, transmission components and other structures, this invention forms a dual automatic unlocking design with stable unhooking and emergency rapid unhooking. This design not only ensures the stability of unhooking and the durability of components under normal testing scenarios, but also meets the needs of rapid evacuation in emergency scenarios. It enriches the unhooking and unlocking logic and improves the device's adaptability to different scenarios. 2. The rectangular enclosure locking structure provides circumferential full-coverage and limit of the towing ring, and evenly transmits the traction force of the towing ring to the hook frame. This ensures that the force on each component is balanced in the locked state, avoids premature damage to components caused by local stress concentration, and improves the load-bearing capacity and safety of the device. 3. The movement of the lock seat synchronously drives the movement of the hook tongues on both sides through the transmission component. Combined with the directional constraints of the guide groove and guide rod, it can ensure that the two hook tongues approach synchronously and ultimately close the opening end in a collinear state, thereby improving the locking accuracy. 4. The transmission components, together with the ear plates, form a triangular support and reinforcement structure. The inherent stability of the triangular structure enhances the structural rigidity of the transmission path, effectively improving the strength of the hook tongue and ensuring the stability of power transmission and the reliability of the locking action. 5. The entire hooking and locking process does not require manual hooking or other operations. It can complete the transmission and locking by relying solely on the vehicle's reversing driving force. Combined with the automatic locking action of the locking component, it simplifies the operation process and is suitable for efficient testing scenarios such as batch testing and cyclic testing. 6. The elastic telescopic rod can absorb the impact force at the moment of contact between the drag ring and the lock seat by contraction, avoiding rigid collisions that could cause deformation and damage to components such as the hook frame and lock seat, ensuring the structural integrity of the test equipment and vehicle, and can also drive the lock seat to reset. 7. The two hook tongues are close to each other to form an embedded connection structure. Compared with the traditional design where the ends of the hooks are directly attached, this structure greatly increases the contact area and connection rigidity of the ends, effectively improving the impact resistance of the ends of the two hook tongues. Even when subjected to large load recoil force during the new energy vehicle test, the ends can be prevented from deforming, cracking or separating, ensuring the integrity of the locking structure. 8. The swingable design of the movable plate has the dual advantages of limiting and unlocking. When locked, it retracts into the tongue groove and is flush with the end of the moving hook tongue, which can accurately close the side of the lock groove to achieve reliable limiting. When unlocking, it can swing flexibly to release the lock tongue, which not only ensures the locking strength, but also does not interfere with the smoothness of the unlocking action. 9. By setting a locking component, the position of the lock seat can be securely locked, thereby locking the hook tongue and other structures. It can also drive the lock seat to move, so that the hook tongue can continue to move inward to the hook frame. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the uncoupling mechanism for the dynamic hub rotation test of new energy vehicles according to the present invention.

[0018] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the hook frame and fixed hook tongue structure of the present invention.

[0020] Figure 4 This is a schematic diagram of the hook frame and moving channel structure of the present invention.

[0021] Figure 5 This is a schematic diagram of the hook frame and limiting frame structure of the present invention.

[0022] Figure 6 This is a schematic diagram of the fixed hook tongue and the movable hook tongue structure of the present invention.

[0023] Figure 7 This is a schematic diagram of the lock seat and elastic telescopic rod structure of the present invention.

[0024] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B.

[0025] Figure 9 This is a schematic diagram of the locking groove section, inclined groove section and release groove section of the present invention.

[0026] Figure 10 For the present invention Figure 9 Enlarged schematic diagram of the structure at point C.

[0027] Figure 11 This is a schematic diagram of the groove rod and movable plate structure of the present invention.

[0028] Figure 12 This is a schematic diagram of the lock base and cylindrical structure of the present invention.

[0029] In the diagram: 1. Test chamber; 2. New energy vehicle; 201. Towing ring; 3. Hook frame; 4. Lock seat; 5. Elastic telescopic rod; 6. Slide rail; 7. Fixed hook tongue; 8. Shaft; 9. Moving hook tongue; 901. Arc-shaped part; 902. Right angle part; 10. Tongue groove; 11. Groove rod; 12. Movable plate; 13. Lock groove; 14. Ball bearing; 15. Lock tongue; 16. Cylindrical part; 17. Through groove; 18. Limiting frame; 19. Limiting groove; 1901. Locking groove section; 1902. Inclined groove section; 1903. Release groove section; 20. Electric push rod; 21. Moving channel; 22. Ear plate; 23. Connecting plate; 24. Guide groove; 25. Guide rod; 26. Torsion spring. Detailed Implementation

[0030] This invention provides, for example Figures 1-12The unhooking mechanism shown is for a dynamic wheel rotation test of a new energy vehicle. It includes a hook assembly installed inside the test chamber 1. After the new energy vehicle 2 enters the test chamber 1, the hook assembly is used to fix the new energy vehicle 2, and then the dynamic wheel rotation test of the whole vehicle is carried out. The dynamic wheel rotation test of the whole vehicle is a common existing technology and will not be described in detail here.

[0031] The hook assembly includes a hook frame 3, which is U-shaped with its open end facing the new energy vehicle 2. The end of the hook frame 3 away from the new energy vehicle 2 is fixed to a base column on the ground of the test chamber 1, so that the position of the hook frame 3 is fixed.

[0032] The hook frame 3 has slide rails 6 running through its upper and lower sides. Hook tongues are slidably installed inside the slide rails 6. When the two hook tongues move toward each other and get closer, they can close the open end of the hook frame 3. A lock seat 4 is slidably installed inside the hook frame 3. An elastic telescopic rod 5 is installed on the side of the lock seat 4 facing away from the open end of the hook frame 3. The fixed end of the elastic telescopic rod 5 is fixedly connected to the inner wall of the hook frame 3, and the lock seat 4 is fixedly connected to the telescopic end of the elastic telescopic rod 5.

[0033] Before the test, the ends of the two hook tongues that were close to each other were moved away, so that the opening end of the hook frame 3 was open. After the new energy vehicle 2 entered the test chamber 1 and approached the hook frame 3 in reverse, the towing ring 201 at the rear of the new energy vehicle 2 was at the same height as the opening end of the hook frame 3. As the new energy vehicle 2 continued to reverse, the towing ring 201 entered the hook frame 3, and then contacted the lock seat 4 and drove the lock seat 4 to move towards the elastic telescopic rod 5 and compress the elastic telescopic rod 5. The elastic telescopic rod 5 can absorb the impact force at the moment of contact between the towing ring 201 and the lock seat 4 by contraction, so as to avoid rigid collision that causes deformation and damage to components such as the hook frame 3 and the lock seat 4, and ensure the structural integrity of the test equipment and vehicle.

[0034] The elastic telescopic rod 5 has a large elastic support force, ensuring the effect of energy absorption during contraction.

[0035] Furthermore, to accommodate the height differences of the tow ring 201 in different vehicle models, an adjustable lifting mechanism can be installed at the bottom of the hook frame 3. This mechanism uses a screw lift with handwheel fine-tuning or electric lifting drive, and is equipped with a scale to achieve visual height adjustment. The adjustment range covers the common height range of the tow ring 201 in mainstream new energy vehicles 2. After adjustment, it is fixed by locking bolts to ensure that the height of the hook assembly is precisely aligned with the tow ring 201, ensuring the smoothness and stability of the hooking process for different vehicle models. In addition, a horizontal adjustment mechanism, including a screw and other structures, can be set to flexibly adjust the position of the hook assembly according to specific usage conditions.

[0036] Meanwhile, a transmission assembly is provided between the lock seat 4 and the hook tongue. During the movement, the lock seat 4 drives the hook tongue to move into the hook frame 3 through the transmission assembly, and the two hook tongues move in opposite directions.

[0037] The hook tongue component includes a fixed hook tongue 7, a shaft 8, and a movable hook tongue 9. The movable hook tongue 9 is located near the inner side of the hook frame 3. The shaft 8 is fixedly connected to one end of the fixed hook tongue 7 near the movable hook tongue 9. The movable hook tongue 9 is rotatably mounted on the shaft 8. A torsion spring 26 is mounted on the shaft 8. One end of the torsion spring 26 is fixedly connected to the shaft 8, and the other end of the torsion spring 26 is fixedly connected to the movable hook tongue 9. When no external force is applied, the fixed hook tongue 7 and the movable hook tongue 9 are in a collinear state under the elastic support force of the torsion spring 26.

[0038] The fixed hook tongue 7, shaft 8, and movable hook tongue 9 are all made of high-strength stainless steel to ensure strength. Meanwhile, the inner wall of the slide 6 is equipped with a structure such as ball bearings 14 to ensure that the fixed hook tongue 7 and movable hook tongue 9 can slide smoothly and quickly.

[0039] Meanwhile, the movable hook tongue 9 has an arc-shaped portion 901 and a right-angle portion 902 at one end near the fixed hook tongue 7. The right-angle portion 902 is close to the lock seat 4. By providing the arc-shaped portion 901 and the right-angle portion 902, the direction of rotation of the movable hook tongue 9 relative to the fixed hook tongue 7 is controlled. (Refer to...) Figure 8 The fixed hook tongue 7 and the movable hook tongue 9 are initially collinearly distributed. Without considering the limiting effect of the inner wall of the slide 6, due to the arc-shaped part 901, the movable hook tongue 9 can rotate clockwise starting from the vertical initial state when subjected to external force. However, due to the presence of the right-angle part 902, it cannot rotate counterclockwise starting from the vertical initial state.

[0040] The transmission assembly includes a moving channel 21, an ear plate 22, a connecting plate 23, a guide groove 24, and a guide rod 25. The moving channel 21 is formed on the wall of the hook frame 3. The ear plate 22 is slidably disposed inside the moving channel 21 and is fixedly connected to the lock seat 4. One end of the connecting plate 23 is rotatably connected to the ear plate 22, and the other end of the connecting plate 23 is rotatably connected to the side of the fixed hook tongue 7, with the rotatable part located at the end of the fixed hook tongue 7 away from the moving hook tongue 9. The guide groove 24 is formed on the connecting plate 23, and the guide rod 25 is slidably disposed inside the guide groove 24 and is fixedly connected to the hook frame 3 to fix its position.

[0041] The ear plate 22, connecting plate 23 and other structures are all made of high-strength stainless steel to ensure strength during use.

[0042] In actual use, the new energy vehicle 2 drives the tow ring 201 into the hook frame 3. The tow ring 201 contacts the lock seat 4 and drives the lock seat 4 to move towards the elastic telescopic rod 5 and compress the elastic telescopic rod 5. The elastic telescopic rod 5 can absorb the impact force at the moment of contact between the tow ring 201 and the lock seat 4 by contraction.

[0043] At the same time, the movement of the lock seat 4 causes the ear plate 22 to move synchronously, and the end of the connecting plate 23 near the hook frame 3 moves toward the elastic telescopic rod 5. Guided by the guide groove 24 and the guide rod 25, the end of the connecting plate 23 near the corresponding fixed hook tongue 7 moves vertically toward the hook frame 3. With the assistance of the ball bearing 14 and other structures, the hook tongue moves toward the inside of the hook frame 3, and at this time the two hook tongues move closer to each other.

[0044] Next, the locking assembly locks the position of the lock seat 4, keeping the hook tongue, lock seat 4, and other structures fixed, thus forming a rectangular enclosure structure to lock the drag ring 201; during locking, refer to... Figure 10 Both the arc-shaped part 901 and the right-angled part 902 are located inside the slide 6. At this time, the movable hook tongue 9 is limited by the inner wall of the slide 6 and cannot rotate. The two movable hook tongues 9 remain collinear and close the open end of the hook frame 3.

[0045] The rectangular enclosure locking structure provides circumferential full-coverage and limiting of the towing ring 201, and evenly transmits the traction force of the towing ring 201 to the hook frame 3, so that the force on each component is balanced in the locked state, avoiding premature damage to components caused by local stress concentration, and improving the load-bearing capacity and safety of the device.

[0046] In this invention, the movement of the lock seat 4 synchronously drives the movement of the hook tongues on both sides through the transmission component. Combined with the directional constraints of the guide groove 24 and the guide rod 25, it can be ensured that the two hook tongues approach synchronously and ultimately close the opening end in a collinear state, thereby improving the locking accuracy.

[0047] Meanwhile, the transmission components, together with the ear plate 22, form a triangular support and reinforcement structure. The inherent stability of the triangular structure enhances the structural rigidity of the transmission path, effectively improving the strength of the hook tongue and ensuring the stability of power transmission and the reliability of locking action.

[0048] The entire hooking and locking process requires no manual hooking or other operations. It can complete the transmission and locking solely by the vehicle's reversing driving force. Combined with the automatic locking action of the locking component, it simplifies the operation process and is suitable for efficient testing scenarios such as batch testing and cyclic testing.

[0049] To enhance the strength of the two movable hook tongues 9 at their closest points, a tongue groove 10 is provided on the side of one of the movable hook tongues 9 facing away from the lock seat 4, and a lock groove 13 is provided on the side of this movable hook tongue 9 closest to the other movable hook tongue 9. The tongue groove 10 and the lock groove 13 are L-shaped. One end of the tongue groove 10 communicates with the lock groove 13, and the other end penetrates the side wall of the movable hook tongue 9. A groove rod 11 is fixedly connected to the end of the tongue groove 10 away from the lock groove 13, and a movable plate 12 is rotatably connected to the groove rod 11. When the movable plate 12 retracts into the tongue groove 10, its end away from the groove rod 11 is flush with the end of the hook tongue 9, and at the same time, the movable plate 12 closes the side of the lock groove 13 closest to the tongue groove 10 (see reference). Figure 8When the movable hook tongue 9 is misaligned with the corresponding slide rail 6, it loses the restriction of the inner wall of the slide rail 6, and the movable plate 12 can swing away from the locking groove 13, so that the side of the locking groove 13 close to the tongue groove 10 opens; at the same time, a locking tongue 15 is fixed on another movable hook tongue 9, and the locking tongue 15 is inserted and engaged with the locking groove 13.

[0050] When the two hook tongues approach each other, the arc-shaped part 901 and the right-angled part 902 are both located inside the slide rail 6. The movable plate 12 is also located inside the slide rail 6 at one end near the groove rod 11. At this time, the movable hook tongue 9 and the movable plate 12 are limited by the inner wall of the slide rail 6 and cannot rotate. At the same time, the locking tongue 15 enters the locking groove 13 and abuts against the movable plate 12, thereby improving the connection strength at the point where the two hook tongues approach each other.

[0051] The two hook tongues are close to each other to form an embedded connection structure. Compared with the traditional design where the ends of the lock hooks are directly attached, this structure greatly increases the contact area and connection rigidity of the ends, effectively improving the impact resistance of the ends of the two hook tongues. Even when subjected to large load recoil force during the test of the new energy vehicle, the ends can be prevented from deforming, cracking or separating, ensuring the integrity of the locking structure.

[0052] Furthermore, there is a small gap between the two moving hook tongues 9 at their closest ends (see reference). Figure 10 The gap is smaller than the height of the drag ring 201, so the drag ring 201 will not pass through. This smaller gap ensures the subsequent flipping and movement of the moving hook tongue 9.

[0053] Unlocking condition 1: Release the lock seat 4 from the lock position. The lock seat 4 can slide within the hook frame 3. The new energy vehicle 2 slowly drives out, and the elastic telescopic rod 5 drives the lock seat 4 to reset.

[0054] Simultaneously, the movement of the lock seat 4 causes the ear plate 22 to move synchronously, and the end of the connecting plate 23 near the hook frame 3 moves toward the corresponding fixed hook tongue 7. Guided by the guide groove 24 and the guide rod 25, the end of the connecting plate 23 near the corresponding fixed hook tongue 7 moves vertically away from the hook frame 3. With the assistance of structures such as the ball bearing 14, the hook tongue moves to the outside of the hook frame 3. At this time, the two hook tongues move away from each other and move in opposite directions, so that the opening end of the hook frame 3 is fully opened to the maximum stroke. The new energy vehicle 2 drives the drag ring 201 to be pulled out in a straight line along the original entry path without obstruction, thus completing the unhooking.

[0055] The unhooking process under this condition is smooth and shock-free, which can minimize the wear of the drag ring 201 and the hook tongue, extend the service life of the components and maintain accuracy. Moreover, the operation process is simplified, and the unhooking can be completed by simply releasing the locking seat 4. It is suitable for normal unhooking after the completion of routine tests and unlocking in cyclic test scenarios that require repeated hooking and unhooking.

[0056] Working condition 2: The locking assembly drives the lock seat 4 to continue moving towards the elastic telescopic rod 5 and compress the elastic telescopic rod 5; at the same time, the hook tongue continues to move towards the inside of the hook frame 3, and the two hook tongues continue to approach each other. At this time, the arc-shaped part 901 and the right-angle part 902 both move to the outside of the slide rail 6. The movable plate 12 is also located outside the slide rail 6 at one end near the groove rod 11. The movable hook tongue 9 and the movable plate 12 can rotate without the limitation of the inner wall of the slide rail 6, and the movable plate 12 can rotate about the groove rod 11 as the axis, releasing the limitation on the lock tongue 15. When the new energy vehicle 2 moves away from the hook frame 3, it drives the drag ring 201 to move synchronously. The inner wall of the drag ring 201 squeezes the movable hook tongue 9, so that the movable hook tongue 9 rotates adaptively about the shaft rod 8 and the movable plate 12 rotates adaptively about the groove rod 11, forming a clearance space for the drag ring 201, realizing the rapid extraction of the drag ring 201 and the completion of unhooking.

[0057] In this mode, all limits can be released with only a 4-second short-stroke movement of the locking seat. Although it is only 2-3 seconds faster than mode one, this 2-3 second advantage can directly determine the safety of personnel and equipment in emergency scenarios. Its core value lies in the timeliness of emergency response. As a supplementary solution to conventional unlocking, it enriches the device's unlocking logic. It is suitable for scenarios where emergencies occur during testing, such as vehicle battery overheating, fire in test chamber 1, or abnormal electromagnetic interference, requiring the rapid evacuation of the vehicle from test chamber 1. It can achieve rapid disengagement, shorten emergency handling time, and effectively improve overall testing efficiency and device practicality.

[0058] In addition, when the elastic telescopic rod 5 experiences a decrease in elasticity or failure due to long-term use, the reset function in working condition one will be affected, while in working condition two, it can still be unlocked and unhooked through the locking component, thus improving the reliability of the device in complex emergency environments.

[0059] After disengagement, under the restoring force of the torsion spring 26, the moving hook tongue 9 quickly flips to reset, and the locking tongue 15 enters the interior of the locking groove 13 from the side of the locking groove 13 away from the tongue groove 10. The fixed hook tongue 7 and the moving hook tongue 9 are once again in a collinear state, which does not affect the reset of the hook tongue and other structures.

[0060] The swingable design of the movable plate 12 has the dual advantages of limiting and unlocking. When locked, it retracts into the tongue groove 10 and is flush with the end of the moving hook tongue 9, which can accurately close the side of the lock groove 13 to achieve reliable limiting. When unlocking, it can swing flexibly to release the lock tongue 15, which not only ensures the locking strength, but also does not interfere with the smoothness of the unlocking action.

[0061] In summary, by setting up locking components, transmission components, and other structures, this invention forms a dual automatic unlocking design for both smooth unhooking and rapid emergency unhooking. This design ensures unhooking stability and component durability under normal testing scenarios, while also meeting the needs of rapid evacuation in emergency scenarios. It enriches the unhooking and unlocking logic and enhances the device's adaptability to different scenarios.

[0062] In specific configuration, the locking assembly includes a cylinder 16, a through groove 17, a limiting frame 18, a limiting slot 19, and an electric push rod 20. The cylinder 16 is fixedly connected to the side of the lock seat 4. The through groove 17 is opened on the wall of the hook frame 3. The limiting frame 18 is slidably disposed inside the through groove 17. The limiting frame 18 is L-shaped. The limiting slot 19 is opened on the limiting frame 18 and passes through the end of the limiting frame 18 near the inner side of the hook frame 3. The limiting slot 19 is engaged with the cylinder 16. The fixed end of the electric push rod 20 is fixedly connected to the outer wall of the hook frame 3. The limiting frame 18 is fixedly connected to the telescopic end of the electric push rod 20. The electric push rod 20 drives the limiting frame 18 to slide inside the through groove 17, thereby using the limiting slot 19 to cooperate with the cylinder 16 to achieve locking and adjustment of the position of the lock seat 4.

[0063] The electric actuator 20 adopts a dual power supply mode of "main grid power supply + backup emergency power supply" to ensure reliable power supply. During the normal test phase, the main grid power supply of the test chamber 1 is used, while in emergency scenarios, the power supply is automatically switched through the lithium battery emergency power supply. At the same time, the electric actuator 20 uses an explosion-proof product of ExdIIBT4 or above to adapt to possible emergencies in the test chamber 1. Vulnerable parts such as the cable outlet are treated with explosion-proof sealed joints. The motor is explosion-proof and equipped with overload and short circuit protection modules to avoid safety hazards caused by electrical faults and ensure stable and safe operation under various working conditions.

[0064] The limiting groove 19, in the direction away from the inner side of the hook frame 3, includes a locking groove section 1901, an inclined groove section 1902, and a release groove section 1903 in sequence, and the end of the inclined groove section 1902 near the release groove section 1903 is inclined away from the hook tongue (see reference). Figure 7 The direction of locking groove 1901 and release groove 1903 is consistent with the moving direction of limit frame 18.

[0065] In actual use, when the cylinder 16 moves to correspond with the locking groove 1901 under the drive of the locking seat 4, the electric push rod 20 drives the limiting frame 18 to slide along the through groove 17 towards the inside of the hook frame 3, driving the limiting groove 19 to move synchronously until the cylinder 16 on the side of the locking seat 4 is inserted into the locking groove 1901 of the limiting groove 19. At this time, the groove wall of the locking groove 1901 forms a rigid limit on the cylinder 16, realizing the stable locking of the position of the locking seat 4, thereby locking the hook tongue and other structures, and ensuring the locking stability of the drag ring 201 during the test.

[0066] When unlocking condition one is required, the electric push rod 20 drives the limit frame 18 to slide in the opposite direction, and the cylinder 16 slides out from the inside of the limit groove 19, releasing the locking state of the lock seat 4 and resetting under the action of the elastic telescopic rod 5. When unlocking condition two (emergency unlocking) is required, the electric push rod 20 drives the limit frame 18 to continue sliding towards the inside of the hook frame 3, and the cylinder 16 smoothly transitions from the inclined groove section 1902 of the limit groove 19 to the release groove section 1903. Guided by the inner walls of the inclined groove section 1902 and the release groove section 1903, the lock seat 4 continues to move towards the elastic telescopic rod 5 and compresses the elastic telescopic rod 5, so that the hook tongue continues to move towards the inside of the hook frame 3, and the moving hook tongue 9 and the movable plate 12 can rotate without the limit of the inner wall of the slide 6.

[0067] By setting a locking component, the position of the lock seat 4 can be securely locked, thereby locking the hook tongue and other structures. It can also drive the lock seat 4 to move, so that the hook tongue can continue to move inward to the hook frame 3.

[0068] In actual use, there are rotating ball structures between the lock seat 4 and the hook frame 3, and between the through groove 17 and the limit frame 18, which can smoothly convert the thrust of the electric push rod 20 into the driving force to move the lock seat 4, avoiding sliding resistance caused by sudden force changes.

[0069] Furthermore, an auxiliary positioning and blocking structure is set on the ground inside the test chamber 1: an adjustable limit block (such as a metal block with a rubber buffer pad) is set at the end of the rear wheel travel path of the new energy vehicle 2. The position of the block can be finely adjusted according to the wheelbase of different models and the position of the towing ring 201. When the new energy vehicle 2 reverses until the towing ring 201 drives the lock seat 4 to move to the preset position (i.e., the cylinder 16 is aligned with the locking groove section 1901), the rear wheel will contact the limit block, preventing the vehicle from continuing to reverse. At this time, the positions of the lock seat 4 and the cylinder 16 are accurately positioned, and the electric push rod 20 can drive the limit frame 18 to complete the locking, thus achieving stable cooperation.

[0070] This invention also discloses a remote uncoupling system for dynamic hub rotation testing of new energy vehicles, including a remote command interaction module, a working condition identification and decision-making module, a drive control module, a status monitoring feedback module, and a dual-power supply guarantee module. Each module constructs a collaborative control network through wired Ethernet and wireless backup communication links to achieve remote, automated, and safety redundancy guarantee of the uncoupling process.

[0071] The remote command interaction module is responsible for receiving operation commands such as regular unlocking and emergency unlocking issued by the remote console, and at the same time, transmitting system operation status data back to the console to provide operators with a visual monitoring interface. This module has command encryption and verification functions, which can avoid misoperation and malicious command interference, and ensure the security and accuracy of command transmission.

[0072] The working condition identification and decision-making module receives environmental monitoring data (such as temperature, smoke concentration, and electromagnetic interference intensity), vehicle status data (such as battery temperature and vehicle voltage), and unhooking mechanism status data (such as the position of lock seat 4 and the engagement status of cylinder 16 and limit groove 19) in real time within the test chamber 1. It determines whether the current test working condition is a normal end working condition or an emergency working condition by using a preset threshold. On the other hand, it verifies the rationality of the operation commands transmitted by the remote command interaction module, generates precise control logic based on the working condition judgment results, and sends corresponding action commands to the drive control module.

[0073] The drive control module, as the core carrier of command execution, is directly connected to the electric push rod 20. It has a built-in high-precision servo control unit and can precisely adjust the extension stroke, speed, and thrust of the electric push rod 20 according to the commands issued by the working condition identification and decision module. This enables the limit frame 18 to slide smoothly within the through slot 17, thereby completing the locking, normal unlocking (working condition one), or emergency unlocking (working condition two) actions of the lock seat 4. Simultaneously, this module has an overload protection function. When the running resistance of the electric push rod 20 exceeds a preset threshold, it automatically cuts off the drive signal and sends a fault alarm to the status monitoring feedback module. The status monitoring feedback module operates throughout the entire unhooking process, using position sensors deployed on the side of the lock seat 4 and the electric push rod... The stroke sensor of the electric push rod 20, the displacement sensor of the limit frame 18, and the environmental sensor in the test chamber 1 collect real-time data on the movement position of the lock seat 4, the engagement status of the cylinder 16 and the limit groove 19, the operating parameters of the electric push rod 20 (such as current, voltage, and stroke), and the environmental parameters in the test chamber 1. The collected real-time data is synchronously transmitted to the working condition identification and decision-making module and the remote command interaction module, which not only provides data support for working condition judgment but also provides a basis for operators to monitor the system's operating status in real time. If abnormal parameters are detected (such as overload of the electric push rod 20, cylinder 16 not accurately locked into the locking groove 1901, or fire in the test chamber 1), a local audible and visual alarm is immediately triggered and synchronously uploaded to the remote control console.

[0074] The dual-power supply module is directly connected to the power supply end of the electric push rod 20. It adopts a redundant design of "main grid power supply + backup emergency power supply". Under normal working conditions, the electric push rod 20 and various control modules are stably powered by the main grid of the test chamber 1, while the backup lithium battery emergency power supply is continuously charged. When the main grid power failure or voltage abnormality is detected, it automatically switches to the backup emergency power supply to ensure that the electric push rod 20 can work normally under emergency unlocking conditions. In addition, the module also has a power supply status monitoring function, which provides real-time feedback on the voltage, power and other parameters of the main and backup power supplies to ensure the reliability of the power supply system.

[0075] The workflow is as follows: Remote operators send operation commands through the console, which are encrypted and transmitted to the working condition identification and decision-making module via the remote command interaction module. This module combines the real-time data transmitted by the status monitoring feedback module to determine the working condition type, generate corresponding control commands, and send them to the drive control module. The drive control module controls the electric push rod 20 to perform the corresponding action, completing the locking or unlocking action of the uncoupling mechanism. At the same time, the status monitoring feedback module sends the status data after the action is executed back to the remote console, forming a closed-loop control of "command issuance - working condition judgment - action execution - status feedback". This enables remote and precise control of the uncoupling process in the dynamic drum test of new energy vehicles, which not only improves the convenience of test operation, but also strengthens the system's adaptability to both routine and emergency scenarios through adaptive decision-making and redundancy protection design.

Claims

1. A disengagement mechanism for dynamic hub rotation testing of new energy vehicles, characterized in that: include: The hook frame (3) is installed inside the test chamber (1); Two sets of hook tongues are slidably disposed on the upper and lower sides of the opening end of the hook frame (3), including a fixed hook tongue (7) and a movable hook tongue (9). The fixed hook tongue (7) and the movable hook tongue (9) are elastically hinged together, and the movable hook tongue (9) is close to the inner side of the hook frame (3). The lock seat (4) is slidably set inside the hook frame (3) and connected to the hook frame (3) via the elastic telescopic rod (5); A locking component is provided between the hook frame (3) and the lock seat (4) for locking or adjusting the position of the lock seat (4); When hooking, the drag ring (201) enters the hook frame (3) and contacts the lock seat (4) and squeezes the elastic telescopic rod (5). At the same time, the transmission assembly drives the two sets of hook tongues to move towards each other to close the opening end of the hook frame (3). When the lock seat (4) is released, the elastic telescopic rod (5) drives the lock seat (4) to reset, so that the two sets of hook tongues move in opposite directions to open the opening end of the hook frame (3) for the hook frame (3) to be pulled out; when the lock seat (4) continues to squeeze the elastic telescopic rod (5), the two sets of hook tongues continue to move towards each other, the moving hook tongue (9) is disengaged from the limit of the hook frame (3), and the drag ring (201) moves to squeeze the moving hook tongue (9) to make it rotate and form a clearance space.

2. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: The fixed hook tongue (7) is fixed with a shaft (8) at one end near the movable hook tongue (9). The movable hook tongue (9) is rotatably mounted on the shaft (8), and a torsion spring (26) is fitted on the shaft (8).

3. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: The movable hook tongue (9) is provided with an arc-shaped part (901) and a right-angled part (902) at one end near the fixed hook tongue (7), and the right-angled part (902) is close to the lock seat (4).

4. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: The hook frame (3) has slides (6) through both the upper and lower sides, and the hook tongue is slidably set in the corresponding slide (6).

5. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: The transmission assembly includes a moving channel (21), an ear plate (22), a connecting plate (23), a guide groove (24), and a guide rod (25), which are used to convert the linear movement of the lock seat (4) into the opposite or opposite movement of the two sets of hook tongues.

6. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: The locking assembly includes a cylinder (16), a through groove (17), a limiting frame (18), a limiting groove (19), and an electric push rod (20). The cylinder (16) is fixed on the lock seat (4), the through groove (17) is opened on the hook frame (3), the limiting frame (18) slides in the through groove (17) and cooperates with the electric push rod (20). The position of the lock seat (4) is controlled by the snap-fit ​​cooperation between the limiting groove (19) and the cylinder (16).

7. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 6, characterized in that: The limiting groove (19) is provided with a locking groove section (1901), an inclined groove section (1902) and a release groove section (1903) in sequence in the direction away from the inside of the hook frame (3). The locking groove section (1901) is used to engage the cylinder (16) to lock the lock seat (4). The inclined groove section (1902) is used to guide the cylinder (16) from the locking groove section (1901) to the release groove section (1903) to control the lock seat (4) to continue to compress the elastic telescopic rod (5).

8. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: One of the movable hook tongues (9) is provided with a tongue groove (10) and a locking groove (13). The tongue groove (10) and the locking groove (13) are L-shaped and interconnected. A movable plate (12) is rotatably provided in the tongue groove (10) through the groove rod (11). A locking tongue (15) is fixedly connected to the other movable hook tongue (9). The locking tongue (15) is inserted into the locking groove (13). When the movable hook tongue (9) is disengaged from the hook frame (3), the movable plate (12) can swing away from the locking groove (13).

9. The uncoupling mechanism for dynamic hub rotation test of a new energy vehicle according to claim 1, characterized in that: The inner wall of the slide (6) is provided with ball bearings (14).

10. A remote uncoupling system for dynamic hub rotation testing of new energy vehicles, characterized in that: The uncoupling mechanism applied to the dynamic hub rotation test of new energy vehicles as described in any one of claims 1 to 9 includes a remote command interaction module, a working condition identification and decision-making module, a drive control module, a status monitoring feedback module, and a dual power supply guarantee module. Each module constructs a collaborative control network through a wired Ethernet and a wireless backup communication link.

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