Damping durability detection device for plug-in hybrid drive vehicle

Abstract

The invention belongs to the technical field of vehicle tests, particularly relates to a damping durability detection device for a plug-in hybrid drive vehicle, and aims to solve the problems that a detection device can only simulate vertical jolt, is single in test working condition and is seriously inconsistent with complex multi-dimensional loads in actual driving, results are distorted, dampers need to be disassembled and assembled repeatedly during batch detection, and the test efficiency is low. In order to solve the problem of low efficiency, the invention provides the following scheme: a test tool cabinet is provided. The device for detecting the damping durability of the plug-in hybrid drive vehicle has the advantages that a combined load under a real road condition can be simulated through the multi-dimensional impact module, vertical impact can be performed, and intermittent impact in deflection, inclination and horizontal directions can also be realized; according to the utility model, complex working conditions of a vehicle during bumping, turning or lateral stress are comprehensively restored, and the module supports one-key rapid clamping and dismounting, is suitable for batch continuous detection of different types of shock absorbers, and remarkably improves the test efficiency and the result reliability.

Description

Technical Field

[0001] This invention relates to the field of vehicle testing technology, and in particular to a device for testing the shock absorption durability of plug-in hybrid vehicles. Background Technology

[0002] Plug-in hybrid electric vehicles, also known as plug-in hybrid electric vehicles, are hybrid electric vehicles that can be charged using an external power source. They combine two power systems: a gasoline engine and an electric motor. They are equipped with a charging interface and a large-capacity battery, and support multiple operating modes such as pure electric and hybrid. In plug-in hybrid electric vehicles, the shock absorber is a core component of the vehicle's suspension. Its durability directly affects ride comfort, handling stability, and driving safety. In the production process of shock absorbers, durability testing is required to produce qualified shock absorbers.

[0003] Existing testing equipment only uses unidirectional vertical excitation bench testing, which can only simulate the vertical bumps of the vehicle. The test conditions are simple and do not match the complex multidimensional dynamic loads experienced by the vehicle in actual driving, resulting in distorted test results. At the same time, when conducting batch testing of shock absorbers, the shock absorbers need to be repeatedly disassembled and reassembled, which reduces testing efficiency. Summary of the Invention

[0004] This invention discloses a shock absorber durability testing device for plug-in hybrid vehicles, aiming to solve the technical problems of the prior art where the testing device can only simulate vertical bumps, the test conditions are singular, which is seriously inconsistent with the complex multidimensional loads in actual driving, resulting in distorted results. At the same time, the batch testing requires repeated disassembly and assembly of shock absorbers, which is inefficient.

[0005] The present invention proposes a shock absorption durability testing device for plug-in hybrid drive vehicles, comprising a test fixture cabinet, a test protective frame fixedly connected to the top of the test fixture cabinet, and an opening and closing sealing plate connected to one side of the test protective frame via a hinge. The interior of the test fixture cabinet is provided with a multi-dimensional impact module, which includes a fixture limiting plate. A controller is provided on the top of the test fixture cabinet.

[0006] In a preferred embodiment, two limiting slide rods are fixedly connected to the opposite side of the test fixture cabinet and the test protective frame, and the two limiting slide rods are slidably connected to the same impact slide plate. A mounting circular opening is provided on one side of the fixture limiting plate, and a rotating cylinder is connected to the inside of the mounting circular opening through a bearing. A rotating circular plate is fixedly connected to the outside of the rotating cylinder, and a circular hole is provided on the rotating circular plate away from its center. An eccentric cylinder is connected to the inside of the circular hole through a bearing. A fixture block is fixedly connected to one side of the impact slide plate, and the inside of the fixture block and the outside of the eccentric cylinder are movably connected to the same reciprocating push-pull rod. A servo motor is fixedly connected to one side of the inside of the test fixture cabinet, and the drive end of the servo motor is connected to one end of the rotating cylinder through a coupling.

[0007] In a preferred embodiment, a limiting block is fixedly connected to one side of the impact slide plate, and a circular groove is provided inside the limiting block. A spherical seat is movably connected inside the circular groove. A lower detection fixture plate is fixedly connected to the outside of the spherical seat. A rotating block one is fixedly connected in a ring at equal intervals on one side of the lower detection fixture plate, and a rotating block two is fixedly connected in a ring at equal intervals on one side of the impact slide plate. The same telescopic spring one is fixedly connected to the opposite side of rotating block one and rotating block two. The same lifting plate is slidably connected to the outside of the two limiting slide rods. A sliding groove one is provided on one side of the lifting plate. A horizontal adjusting slide frame is slidably connected inside the sliding groove one. The same rotating fixture block is connected to the opposite side of the horizontal adjusting slide frame through a bearing. A limiting cylinder is fixedly connected to one side of the rotating fixture block. A sliding sleeve rod is slidably connected inside the limiting cylinder. The same telescopic spring two is fixedly connected to the opposite side of the sliding sleeve rod and the limiting cylinder. The telescopic spring two is located inside the limiting cylinder.

[0008] In a preferred embodiment, one end of the sliding sleeve rod is fixedly connected to an upper detection fixture plate, and one side of both the upper and lower detection fixture plates is fixedly connected to a fixture circular frame. One side of each of the two fixture circular frames is fixedly connected to a guide plate. Limiting grooves are equidistantly formed in an annular pattern on both guide plates. Sliding clamping frames are slidably connected inside the multiple limiting grooves. A clamping seat is fixedly connected to one side of each of the multiple sliding clamping frames. A circular abutment is fixedly connected to one side of each of the multiple sliding clamping frames. A drive motor is fixedly connected to one side of both the upper and lower detection fixture plates. An installation circular opening is formed on one side of the guide plate. An adjusting circular plate is connected inside the installation circular opening via a bearing. An arc-shaped groove is formed at equal intervals on one side of the adjusting circular plate. The circular abutment is located inside the arc-shaped groove. The drive end of the drive motor is connected to one side of the adjusting circular plate via a coupling.

[0009] In a preferred embodiment, an electric telescopic cylinder is fixedly connected to one side of the lifting plate, and a push plate is fixedly connected to the drive end of the electric telescopic cylinder. Two limiting sliding holes are opened on one side of the push plate, and limiting cylinders are slidably connected inside the two limiting sliding holes. One end of the limiting cylinder is fixedly connected to one side of the horizontal adjusting slide frame. Two buffer springs are fixedly connected to the opposite side of the horizontal adjusting slide frame and the push plate. The buffer springs are located outside the limiting cylinders. A receiving sensor is provided on one side of the upper detection fixture plate, and the same shock absorber body is placed on the opposite side of the upper detection fixture plate and the lower detection fixture plate.

[0010] In a preferred embodiment, two sliding grooves are provided on one side of the lifting plate, and two reset sliders are slidably connected inside each of the two sliding grooves. The same linkage gear is fixedly connected to one side of the two reset sliders located on the same side. Tooling support plates are fixedly connected to both sides of the lifting plate. A circular hole is provided on one side of each of the two tooling support plates. The same rotating shaft is connected inside the two circular holes through bearings. Two semi-circular gears are fixedly connected to the outside of the rotating shaft. One side of one of the tooling support plates is fixedly connected to a general-purpose motor. The drive end of the general-purpose motor is connected to one end of the rotating shaft through a coupling.

[0011] In a preferred embodiment, a reset spring is fixedly connected to one side of each of the two reset sliders, and one side of the reset spring is fixedly connected to one side of the slide groove. The same impact seat is fixedly connected to one side of the two reset sliders, and a transverse impact head is fixedly connected to one side of the impact seat. A U-shaped mounting plate is fixedly connected to one side of the lifting plate, and a limit circle frame is fixedly connected to one side of the U-shaped mounting plate. A drive box is provided on the outer side of the test protection frame, and an adjusting screw is provided inside the drive box. One end of the adjusting screw is movably connected to the inside of the limit circle frame.

[0012] In a preferred embodiment, the test protective frame is provided with a simulation detection module on its exterior, and the simulation detection module includes a temperature-controlled air box. Two vertical slots are opened on both sides of the test protective frame. Lifting sliders are slidably connected inside the multiple vertical slots. A blower head is fixedly connected to one side of each of the multiple lifting sliders. Sealing slide plates are fixedly connected to the exterior of each of the multiple lifting sliders. The same crossbar is fixedly connected to the opposite side of two sealing slide plates located on the same side. Electric telescopic rods are provided on both sides of the test protective frame, and the drive end of the electric telescopic rod is fixedly connected to one side of the crossbar.

[0013] In a preferred embodiment, one end of each of the two blowers located on the same side is fixedly connected to the same ventilation pipe, and the air inlet ends of both ventilation pipes are fixedly connected to metal telescopic pipes. A vertical slot two is provided on one side of the test protective frame, and a lifting slider two is slidably connected inside the vertical slot two. An infrared thermometer is provided on one side of the lifting slider two, and a temperature sensor is provided on the other side of the lifting slider two. A sealing slide plate two is fixedly connected to the outside of the lifting slider two, and a linkage rod is fixedly connected to both sides of the sealing slide plate two. One side of the linkage rod is fixedly connected to one side of one of the sealing slide plates.

[0014] In a preferred embodiment, a pump body is provided on the outer side of the test protective frame, and a delivery pipe is fixedly connected to the air blowing end of the pump body. One end of the delivery pipe is fixedly connected to one end of a metal telescopic tube, and the temperature control air box is located inside the test fixture cabinet.

[0015] As can be seen from the above, the shock absorber durability testing device for plug-in hybrid vehicles provided by the present invention can simulate the composite load under real road conditions through a multi-dimensional impact module. It can not only perform vertical impact, but also realize sway, tilt and intermittent horizontal impact, fully restore the complex working conditions of the vehicle when it is bumpy, turning or subjected to lateral force. At the same time, the module supports one-click quick clamping and disassembly, and is suitable for batch continuous testing of different types of shock absorbers, which significantly improves the testing efficiency and the reliability of the results. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 2 This is a side view of a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 3 This is a schematic diagram of a multi-dimensional impact module structure for a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 4 This is a schematic diagram of a multi-dimensional impact module structure for a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 5 This is a schematic diagram of the clamping seat structure of a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 6 This is a schematic diagram of the lifting plate portion of a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 7 This is a schematic diagram of the transverse impact head portion of a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 8 This is a schematic diagram of the horizontal adjustment slide frame part of the shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 9 This is a schematic diagram of a simulation testing module structure for a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention. Figure 10 This is a schematic diagram of an infrared temperature measuring head structure for a shock absorption durability testing device for plug-in hybrid vehicles proposed in this invention.

[0017] In the diagram: 1. Test fixture cabinet; 2. Controller; 3. Test protective frame; 4. Opening and closing sealing plate; 5. Multi-dimensional impact module; 501. Limiting slide bar; 502. Servo motor; 503. Fixture limiting plate; 504. Rotating cylinder; 505. Rotating circular plate; 506. Eccentric cylinder; 507. Reciprocating push-pull rod; 508. Shock absorber body; 509. Lifting plate; 510. U-shaped mounting plate; 511. Limiting circular frame; 512. Drive box; 513. 514. Adjusting screw; 515. Impact slide plate; 516. Tooling block; 517. Limiting block; 518. Spherical seat; 519. Lower detection tooling plate; 520. Rotating block one; 521. Rotating block two; 522. Telescopic spring one; 523. Tooling round frame; 524. Drive motor; 525. Guide plate; 526. Adjusting round plate; 527. Round abutment post; 528. Limiting groove; 529. Sliding clamping frame; 530. Clamping seat; 531. General motor; 532. Receiving sensor; 533. Reset slider; 534. Linkage rack; 535. Reset spring; 536. Tooling support plate; 537. Impact seat; 538. Transverse impact head; 539. Rotary shaft; 540. Semi-circular gear; 541. Horizontal adjusting slide frame; 542. Upper detection tooling plate; 543. Electric telescopic cylinder; 544. Rotating tooling block; 545. Limiting cylinder; 546. Telescopic spring II; 547. Sliding sleeve rod; 548. Push plate; 549. Limiting cylinder; 549, buffer spring; 6, simulation detection module; 601, lifting slider one; 602, blower head; 603, sealing slide plate one; 604, electric telescopic rod; 605, crossbar; 606, linkage rod; 607, lifting slider two; 608, infrared thermometer; 609, sealing slide plate two; 610, temperature sensor; 611, ventilation duct; 612, temperature control air box; 613, pump body; 614, delivery pipe; 615, metal telescopic pipe. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0019] The present invention discloses a shock absorber durability testing device for plug-in hybrid drive vehicles. It is mainly used in scenarios where the testing device can only simulate vertical bumps, the test conditions are simple and do not match the complex multidimensional loads in actual driving, resulting in distorted results. At the same time, batch testing requires repeated disassembly and assembly of shock absorbers, which is inefficient.

[0020] Reference Figures 1-10A device for testing the shock absorption durability of plug-in hybrid vehicles includes a test fixture cabinet 1, a test protective frame 3 fixedly connected to the top of the test fixture cabinet 1, and an opening and closing sealing plate 4 connected to one side of the test protective frame 3 via a hinge. A multi-dimensional impact module 5 is installed inside the test fixture cabinet 1, and the multi-dimensional impact module 5 includes a fixture limiting plate 503. A controller 2 is installed on the top of the test fixture cabinet 1.

[0021] Reference Figures 1-8 In a preferred embodiment, two limiting slide rods 501 are fixedly connected to the opposite side of the test fixture cabinet 1 and the test protective frame 3, and the same impact slide plate 514 is slidably connected to the outside of the two limiting slide rods 501. A mounting round opening is provided on one side of the fixture limiting plate 503. A rotating cylinder 504 is connected to the inside of the mounting round opening through a bearing. A rotating circular plate 505 is fixedly connected to the outside of the rotating cylinder 504. A circular hole is provided on the rotating circular plate 505 away from its center. An eccentric cylinder 506 is connected to the inside of the circular hole through a bearing. A fixture block 515 is fixedly connected to one side of the impact slide plate 514. The inside of the fixture block 515 and the outside of the eccentric cylinder 506 are movably connected to the same reciprocating push-pull rod 507. A servo motor 502 is fixedly connected to one side of the inside of the test fixture cabinet 1. The drive end of the servo motor 502 is connected to one end of the rotating cylinder 504 through a coupling.

[0022] Reference Figures 1-8 In a preferred embodiment, a limiting block 516 is fixedly connected to one side of the impact slide plate 514, and a circular groove is provided inside the limiting block 516. A spherical seat 517 is movably connected inside the circular groove. A lower detection fixture plate 518 is fixedly connected to the outside of the spherical seat 517. A rotating block 519 is fixedly connected in a ring at equal intervals on one side of the lower detection fixture plate 518. A rotating block 520 is fixedly connected in a ring at equal intervals on one side of the impact slide plate 514. The same telescopic spring 521 is fixedly connected to the opposite side of the rotating block 519 and the rotating block 520. The limiting slide rod 501 is externally slidably connected to the same lifting plate 509. A sliding groove is provided on one side of the lifting plate 509. A horizontal adjusting slide frame 540 is slidably connected inside the sliding groove. The opposite side of the horizontal adjusting slide frame 540 is connected to the same rotating tooling block 543 through a bearing. A limiting cylinder 544 is fixedly connected to one side of the rotating tooling block 543. A sliding sleeve rod 546 is slidably connected inside the limiting cylinder 544. A second telescopic spring 545 is fixedly connected to the opposite side of the sliding sleeve rod 546 and the limiting cylinder 544. The second telescopic spring 545 is located inside the limiting cylinder 544.

[0023] Reference Figures 1-8In a preferred embodiment, one end of the sliding sleeve rod 546 is fixedly connected to an upper detection fixture plate 541, and one side of both the upper detection fixture plate 541 and the lower detection fixture plate 518 is fixedly connected to a fixture circular frame 522. One side of each of the two fixture circular frames 522 is fixedly connected to a guide plate 524. Each of the two guide plates 524 has a ring-shaped, equidistantly spaced limit groove 527. The interior of each of the multiple limit grooves 527 is slidably connected to a sliding clamping frame 528, and one side of each of the multiple sliding clamping frames 528 is fixedly connected to a clamping device. The holder 529 and multiple sliding clamping frames 528 are each fixedly connected to one side of a circular abutment post 526. The upper detection fixture plate 541 and the lower detection fixture plate 518 are each fixedly connected to one side of a drive motor 523. The guide plate 524 has an installation circular opening on one side. The interior of the installation circular opening is connected to an adjusting circular plate 525 through a bearing. The adjusting circular plate 525 has arc-shaped grooves at equal intervals on one side. The circular abutment post 526 is located inside the arc-shaped groove. The drive end of the drive motor 523 is connected to one side of the adjusting circular plate 525 through a coupling.

[0024] Reference Figures 1-8 In a preferred embodiment, an electric telescopic cylinder 542 is fixedly connected to one side of the lifting plate 509, and a push plate 547 is fixedly connected to the drive end of the electric telescopic cylinder 542. Two limiting sliding holes are opened on one side of the push plate 547, and limiting cylinders 548 are slidably connected inside the two limiting sliding holes. One end of the limiting cylinder 548 is fixedly connected to one side of the horizontal adjusting slide frame 540. Two buffer springs 549 are fixedly connected to the opposite side of the horizontal adjusting slide frame 540 and the push plate 547. The buffer springs 549 are located outside the limiting cylinders 548. A receiving sensor 531 is provided on one side of the upper detection fixture plate 541. The same shock absorber body 508 is placed on the opposite side of the upper detection fixture plate 541 and the lower detection fixture plate 518.

[0025] Reference Figures 1-8 In a preferred embodiment, two sliding grooves are provided on one side of the lifting plate 509, and two reset sliders 532 are slidably connected inside the two sliding grooves. The same linkage rack 533 is fixedly connected to one side of the two reset sliders 532 located on the same side. Tooling support plates 535 are fixedly connected to both sides of the lifting plate 509. Two round holes are provided on one side of the two tooling support plates 535. The same rotating shaft 538 is connected inside the two round holes through bearings. Two semi-circular gears 539 are fixedly connected to the outside of the rotating shaft 538. One side of one of the tooling support plates 535 is fixedly connected to a general motor 530. The drive end of the general motor 530 is connected to one end of the rotating shaft 538 through a coupling.

[0026] Reference Figures 1-8In a preferred embodiment, a reset spring 534 is fixedly connected to one side of each of the two reset sliders 532, and one side of the reset spring 534 is fixedly connected to one side of the slide groove 2. The same impact seat 536 is fixedly connected to one side of the two reset sliders 532. A transverse impact head 537 is fixedly connected to one side of the impact seat 536. A U-shaped mounting plate 510 is fixedly connected to one side of the lifting plate 509. A limiting circular frame 511 is fixedly connected to one side of the U-shaped mounting plate 510. A drive box 512 is provided on the outer side of the test protective frame 3. An adjusting screw 513 is provided inside the drive box 512. One end of the adjusting screw 513 is movably connected to the inside of the limiting circular frame 511.

[0027] Specifically, when performing durability testing on the shock absorber body 508, first open the opening and closing sealing plate 4, and place the shock absorber body 508 to be tested vertically on the clamping seat 529 of the lower testing fixture plate 518. Start the drive motor 523 through the controller 2. The motor drives the adjusting circular plate 525 to rotate. The arc groove on the circular plate pushes all the circular abutment columns 526, causing the sliding clamping frame 528 to slide radially towards the center, thereby causing the clamping seats 529 at both ends to tighten synchronously and firmly hold the mounting rings at both ends of the shock absorber, completing the quick installation. Then close the opening and closing sealing plate 4, and start the servo motor 502 through the controller 2. The servo motor 502 drives the rotating cylinder 504 to rotate at a constant speed, driving the rotating circular plate 505 fixed on it to rotate together, and the mounting rings are installed on the rotating cylinder 508. The eccentric cylinder 506 at the eccentric position of the moving circular plate 505 performs a circular motion. The eccentric cylinder 506 is hinged to the tooling block 515 fixed on the impact plate 514 via the reciprocating push-pull rod 507. Therefore, the circular motion of the eccentric cylinder 506 is converted into the reciprocating push-pull motion of the reciprocating push-pull rod 507, which in turn drives the entire impact plate 514 to perform a high-frequency vertical reciprocating motion along the two limiting slide rods 501. The vertical impact of the impact plate 514 is transmitted to the lower detection tooling plate 518 through the limiting block 516 and the ball seat 517. The ball seat 517 allows the lower detection tooling plate 518 to swing freely within a certain angle, while the circumferentially distributed telescopic springs 521 provide restoring force. When the vertical impact is not perfectly aligned, or the shock absorber itself is under stress... When the feedback is uneven, the lower detection fixture plate 518 will tilt and twist accordingly, and transmit this multi-dimensional composite motion to the lower end of the shock absorber through the lower clamping seat 529, simulating the impact of complex road conditions. During the vertical impact or during the alternating period, the controller 2 can start the general motor 530. The general motor 530 drives the rotating shaft 538 and the two semi-circular gears 539 fixed on the shaft to rotate. When the toothed part of the semi-circular gear 539 meshes with the linkage rack 533, it pushes the linkage rack 533, the reset slider 532, the impact seat 536 and the lateral impact head 537 to move rapidly in the opposite direction of the shock absorber, compressing the reset spring 534. When the toothless part of the semi-circular gear 539 rotates to the position of the linkage rack 533, the meshing disengages, and at this time the shock absorber is... The compressed return spring 534 releases its elastic force, applying a momentary horizontal impact force. This design achieves intermittent, pulsed horizontal impacts, simulating lateral force conditions. The controller 2 activates the drive box 512 to drive the adjusting screw 513 to rotate. The screw engages with the limiting circular frame 511 fixed on the lifting plate 509, causing the entire lifting plate 509 and all its components, including the detection fixture plate 541 and the horizontal impact mechanism, to rise and fall along the limiting slide rod 501. Changing the height of the lifting plate 509 changes the position of the clamping point on the shock absorber, thus altering the overall tilt angle of the shock absorber in space. At different tilt angles, the force vector direction generated by the vertical impact from below on the shock absorber differs, simulating different installation conditions.Sensor 531 continuously records the displacement and force data of the upper detection fixture plate 541, reflecting the dynamic response characteristics of the shock absorber under combined impact. All sensor data is fed back to controller 2 for recording and analysis. When the preset number of test cycles is reached, or when the sensor detects a sudden drop in the shock absorber's performance parameters, such as a sudden decrease in damping force indicating potential failure, controller 2 automatically stops all motors, opens the opening and closing sealing plate 4, drives motor 523 in reverse, releases clamping seat 529, and the tested shock absorber can be removed for subsequent disassembly inspection and performance evaluation. In specific application scenarios, the multi-dimensional impact module 5 can not only perform reciprocating impacts in the vertical direction to simulate vehicle bumps, but also, through the movable connection between the lower detection fixture plate 518 and the ball seat 517, and the surrounding telescopic spring 521, the lower detection fixture plate 518 can produce a certain degree of sway and tilt when subjected to vertical impacts. This simulates the composite impact load, which is not purely vertical but has a lateral component, that the shock absorber experiences when the vehicle encounters potholes, turns, or one-sided obstacles while driving. This greatly overcomes the limitations of traditional unidirectional vertical testing. At the same time, the added horizontal impact simulation mechanism can actively apply intermittent horizontal impacts to simulate the effects of centrifugal force, crosswinds, or lateral friction of the road surface on the suspension system when the vehicle is turning. The combination of vertical, tilting, and horizontal impacts makes the test ring more comprehensive. The test results are significantly improved in terms of accuracy and reliability by using complex, multi-dimensional dynamic loads that closely approximate real road conditions. Simultaneously, the drive motors 523 on the upper and lower test fixture plates 541 and 518 drive the adjustment disc 525 to rotate. The arc groove on the disc pushes multiple circular abutment columns 526, thereby causing all sliding clamping frames 528 to move radially synchronously within the limiting grooves 527 of the guide plate 524. This allows multiple clamping seats 529 to simultaneously retract inward or expand outward, thus quickly and accurately tightening or loosening the mounting rings at both ends of the shock absorber body 508. This process requires no additional tools, achieving one-click quick clamping and disassembly. It is particularly suitable for batch continuous testing of shock absorbers of different models and sizes, avoiding the cumbersome operation and time consumption of traditional bolt tightening methods, and increasing testing efficiency exponentially.

[0028] Reference Figure 1 , Figure 9 and Figure 10In a preferred embodiment, a simulation detection module 6 is provided on the outside of the test protective frame 3, and the simulation detection module 6 includes a temperature control air box 612. Two vertical slots are opened on both sides of the test protective frame 3. Lifting sliders 601 are slidably connected inside the multiple vertical slots. A blower head 602 is fixedly connected to one side of the multiple lifting sliders 601. Sealing slide plates 603 are fixedly connected to the outside of the multiple lifting sliders 601. The same cross frame 605 is fixedly connected to the opposite side of two sealing slide plates 603 located on the same side. Electric telescopic rods 604 are provided on both sides of the test protective frame 3. The drive end of the electric telescopic rod 604 is fixedly connected to one side of the cross frame 605.

[0029] Reference Figure 1 , Figure 9 and Figure 10 In a preferred embodiment, one end of each of the two blowers 602 located on the same side is fixedly connected to the same ventilation pipe 611, and the air inlet end of each of the two ventilation pipes 611 is fixedly connected to a metal telescopic pipe 615. A vertical slot 2 is provided on one side of the test protective frame 3, and a lifting slider 2 607 is slidably connected inside the vertical slot 2. An infrared thermometer 608 is provided on one side of the lifting slider 2 607, and a temperature sensor 610 is provided on the other side of the lifting slider 2 607. A sealing slide plate 2 609 is fixedly connected to the outside of the lifting slider 2 607, and a linkage rod 606 is fixedly connected to both sides of the sealing slide plate 2 609. One side of the linkage rod 606 is fixedly connected to one side of one of the sealing slide plates 1 603.

[0030] Reference Figure 1 , Figure 9 and Figure 10 In a preferred embodiment, a pump body 613 is provided on the outer side of the test protective frame 3, and a delivery pipe 614 is fixedly connected to the air blowing end of the pump body 613. One end of the delivery pipe 614 is fixedly connected to one end of the metal telescopic pipe 615, and the temperature control air box 612 is located inside the test fixture cabinet 1.

[0031] Specifically, controller 2 sets the target temperature of temperature control box 612. Temperature control box 612 heats or cools the air to the specified temperature. Pump body 613 is started to pump the temperature-adjusted air into blower head 602 through delivery pipe 614, metal telescopic pipe 615, and ventilation pipe 611. At the same time, electric telescopic rod 604 drives cross frame 605 and sealing slide plate 603 to move up and down according to the setting, thereby driving blower head 602 to scan and deliver air along the length of shock absorber to ensure uniform temperature field. Linkage rod 606 ensures that infrared thermometer head 608 and temperature sensor 610 rise and fall synchronously to monitor the surface temperature of key parts of shock absorber and ambient temperature in real time, forming closed-loop control. In specific application scenarios, the temperature control box 612 in the simulation testing module 6 can precisely adjust the temperature of the output air. The air is then delivered to the liftable blower head 602 via the pump body 613, delivery pipe 614, metal telescopic pipe 615, and ventilation pipe 611. This allows for localized heating or cooling of the shock absorber under test. Combined with the synchronously liftable infrared thermometer head 608 and temperature sensor 610, the surface temperature of the shock absorber and the ambient temperature can be monitored in real time. This simulates the working conditions of the vehicle under extreme environments such as severe cold, extreme heat, or temperature rise after long-term operation. It can assess the impact of temperature changes on the viscosity of the shock absorber oil, the performance of the seals, and the overall damping characteristics, achieving simultaneous assessment of the thermal durability of the shock absorber and providing a more complete testing dimension.

[0032] Working principle: When performing durability testing on the shock absorber body 508, first open the opening and closing sealing plate 4, and place the shock absorber body 508 to be tested vertically on the clamping seat 529 of the lower testing fixture plate 518. Start the drive motor 523 through the controller 2. The motor drives the adjusting circular plate 525 to rotate. The arc groove on the circular plate pushes all the circular abutment columns 526, causing the sliding clamping frame 528 to slide radially towards the center, thereby causing the clamping seats 529 at both ends to tighten synchronously, firmly gripping the mounting rings at both ends of the shock absorber, completing the quick installation. Then close the opening and closing sealing plate 4, and start the servo motor 502 through the controller 2. The servo motor 502 drives the rotating cylinder 504 to rotate at a constant speed, driving the rotating circular plate 505 fixed on it to rotate together, and installing... The eccentric cylinder 506, located off-center from the rotating circular plate 505, undergoes circular motion. The eccentric cylinder 506 is hinged to the tooling block 515 fixed on the impact plate 514 via a reciprocating push-pull rod 507. Therefore, the circular motion of the eccentric cylinder 506 is converted into the reciprocating push-pull motion of the reciprocating push-pull rod 507, which in turn drives the entire impact plate 514 to perform high-frequency vertical reciprocating motion along the two limiting slide rods 501. The vertical impact of the impact plate 514 is transmitted to the lower detection tooling plate 518 through the limiting block 516 and the ball seat 517. The ball seat 517 allows the lower detection tooling plate 518 to freely swing within a certain angle, while the circumferentially distributed telescopic springs 521 provide restoring force. When the vertical impact is not perfectly aligned, or the shock absorber itself is subjected to… When the force feedback is uneven, the lower detection fixture plate 518 will tilt and twist accordingly, and transmit this multi-dimensional composite motion to the lower end of the shock absorber through the lower clamping seat 529, simulating the impact of complex road conditions. During the vertical impact or during the alternating period, the controller 2 can start the general motor 530. The general motor 530 drives the rotating shaft 538 and the two semi-circular gears 539 fixed on the shaft to rotate. When the toothed part of the semi-circular gear 539 meshes with the linkage rack 533, it pushes the linkage rack 533, the reset slider 532, the impact seat 536 and the lateral impact head 537 to move rapidly in the opposite direction of the shock absorber, compressing the reset spring 534. When the toothless part of the semi-circular gear 539 rotates to the position of the linkage rack 533, the meshing disengages. The compressed return spring 534 releases its elastic force, applying a momentary horizontal impact force. This design achieves intermittent, pulsed horizontal impacts, simulating lateral force conditions. The controller 2 activates the drive box 512 to drive the adjusting screw 513 to rotate. The screw engages with the limiting circular frame 511 fixed on the lifting plate 509, causing the entire lifting plate 509 and all its components, including the detection fixture plate 541 and the horizontal impact mechanism, to rise and fall along the limiting slide rod 501. This changes the height of the lifting plate 509, thus altering the position of the clamping point on the shock absorber, and consequently changing the overall tilt angle of the shock absorber in space. At different tilt angles, the force vector direction generated by the vertical impact from below on the shock absorber differs, simulating different installation conditions.Sensor 531 continuously records the displacement and force data of the upper detection fixture plate 541, reflecting the dynamic response characteristics of the shock absorber under combined impact. All sensor data is fed back to controller 2 for recording and analysis. When the preset number of test cycles is reached, or when the sensor detects a sudden drop in the shock absorber's performance parameters, such as a sudden drop in damping force indicating potential failure, controller 2 automatically stops all motors, opens the opening and closing sealing plate 4, drives motor 523 in reverse, releases clamping seat 529, and the tested shock absorber can be removed for subsequent disassembly inspection and performance evaluation. Controller 2 sets the target temperature of the temperature control box 612. The temperature control box 612 heats or cools the air to a specified temperature. The pump body 613 is then activated, pumping the temperature-controlled air through the delivery pipe 614, metal telescopic pipe 615, and ventilation pipe 611 into the blower head 602. Simultaneously, the electric telescopic rod 604 moves the crossbeam 605 and sealing slide plate 603 up and down according to settings, thereby driving the blower head 602 to scan and deliver air along the length of the shock absorber, ensuring a uniform temperature field. The linkage rod 606 ensures that the infrared thermometer 608 and temperature sensor 610 rise and fall synchronously, monitoring the surface temperature of key parts of the shock absorber and the ambient temperature in real time, forming a closed-loop control system.

[0033] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for shock durability detection of a plug-in hybrid drive vehicle, comprising a test tool cabinet (1), characterized in that, The upper side of the test tool cabinet (1) is fixedly connected with a test protection frame (3), one side of the test protection frame (3) is hingedly connected with an opening and closing sealing plate (4), the inside of the test tool cabinet (1) is provided with a multi-dimensional impact module (5), and the multi-dimensional impact module (5) comprises a tool limiting plate (503), and the upper side of the test tool cabinet (1) is provided with a controller (2).

2. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 1, wherein The opposite side of the test tool cabinet (1) and the test protection frame (3) is fixedly connected with two limiting slide rods (501), and the outside of the two limiting slide rods (501) is slidably connected with the same impact sliding plate (514), one side of the tool limiting plate (503) is provided with a mounting round port, the inside of the mounting round port is connected with a rotating cylinder (504) through a bearing, the outside of the rotating cylinder (504) is fixedly connected with a rotating disc (505), the rotating disc (505) is provided with a circular hole one away from the position of its center, the inside of the circular hole one is connected with an eccentric cylinder (506) through a bearing, one side of the impact sliding plate (514) is fixedly connected with a tool block (515), the inside of the tool block (515) and the outside of the eccentric cylinder (506) are movably connected with the same reciprocating push-pull rod (507), one side of the inside of the test tool cabinet (1) is fixedly connected with a servo motor (502), and the driving end of the servo motor (502) is connected to one end of the rotating cylinder (504) through a shaft coupling.

3. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 2, wherein One side of the impact sliding plate (514) is fixedly connected with a limiting block (516), the inside of the limiting block (516) is provided with a circular groove, the inside of the circular groove is movably connected with a spherical seat (517), the outside of the spherical seat (517) is fixedly connected with a lower detection tool plate (518), one side of the lower detection tool plate (518) is annularly and equidistantly fixedly connected with a rotating block one (519), one side of the impact sliding plate (514) is annularly and equidistantly fixedly connected with a rotating block two (520), the opposite side of the rotating block one (519) and the rotating block two (520) is fixedly connected with the same extension spring one (521), the outside of the two limiting slide rods (501) is slidably connected with the same lifting plate (509), one side of the lifting plate (509) is provided with a sliding groove one, the inside of the sliding groove one is slidably connected with a horizontal adjustment sliding frame (540), the opposite side of the horizontal adjustment sliding frame (540) is connected with the same rotating tool block (543) through a bearing, one side of the rotating tool block (543) is fixedly connected with a limiting cylinder (544), the inside of the limiting cylinder (544) is slidably connected with a sliding sleeve rod (546), the opposite side of the sliding sleeve rod (546) and the limiting cylinder (544) is fixedly connected with the same extension spring two (545), and the extension spring two (545) is located in the inside of the limiting cylinder (544).

4. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 3, wherein One end of the sliding sleeve rod (546) is fixedly connected with an upper detection tool plate (541), and the upper detection tool plate (541) and one side of the lower detection tool plate (518) are fixedly connected with tool round frames (522), one side of the two tool round frames (522) is fixedly connected with guide plates (524), the two guide plates (524) are both annularly and equidistantly provided with limiting grooves (527), the interiors of the plurality of limiting grooves (527) are slidably connected with sliding clamping frames (528), one side of the plurality of sliding clamping frames (528) is fixedly connected with clamping seats (529), one side of the plurality of sliding clamping frames (528) is fixedly connected with circular abutting columns (526), one side of the upper detection tool plate (541) and the lower detection tool plate (518) is fixedly connected with a driving motor (523), one side of the guide plate (524) is provided with a mounting circular opening, the interior of the mounting circular opening is connected with an adjusting circular plate (525) through a bearing, one side of the adjusting circular plate (525) is equidistantly provided with an arc-shaped groove, the circular abutting column (526) is located in the interior of the arc-shaped groove, and the driving end of the driving motor (523) is connected to one side of the adjusting circular plate (525) through a shaft coupling.

5. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 4, wherein One side of the lifting plate (509) is fixedly connected with an electric telescopic cylinder (542), and the driving end of the electric telescopic cylinder (542) is fixedly connected with a push plate (547), one side of the push plate (547) is provided with two limiting sliding holes, the interiors of the two limiting sliding holes are slidably connected with limiting cylinders (548), one end of the limiting cylinder (548) is fixedly connected with one side of the horizontal adjusting sliding frame (540), the horizontal adjusting sliding frame (540) and the opposite side of the push plate (547) are fixedly connected with two buffer springs (549), the buffer springs (549) are located outside the limiting cylinder (548), one side of the upper detection tool plate (541) is provided with a receiving sensor (531), and the opposite sides of the upper detection tool plate (541) and the lower detection tool plate (518) are placed with the same shock absorber body (508).

6. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 5, wherein One side of the lifting plate (509) is provided with two sliding grooves two, and the interiors of the two sliding grooves two are slidably connected with two reset sliding blocks (532), one side of the two reset sliding blocks (532) located on the same side is fixedly connected with the same linkage tooth rod (533), both sides of the lifting plate (509) are fixedly connected with tool support plates (535), one side of the two tool support plates (535) is provided with a circular hole two, the interiors of the two circular holes are connected with the same rotating shaft (538) through a bearing, the exterior of the rotating shaft (538) is fixedly connected with two semicircular gears (539), one side of one of the tool support plates (535) is fixedly connected with a universal motor (530), and the driving end of the universal motor (530) is connected to one end of the rotating shaft (538) through a shaft coupling.

7. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 6, wherein One side of each of the two reset sliders (532) is fixedly connected to a reset spring (534), and one side of the reset spring (534) is fixedly connected to one side of the slide groove. One side of each of the two reset sliders (532) is fixedly connected to the same impact seat (536). One side of the impact seat (536) is fixedly connected to a transverse impact head (537). One side of the lifting plate (509) is fixedly connected to a U-shaped mounting plate (510). One side of the U-shaped mounting plate (510) is fixedly connected to a limit circle frame (511). One side of the test protection frame (3) is provided with a drive box (512). The drive box (512) is provided with an adjusting screw (513) inside. One end of the adjusting screw (513) is movably connected to the inside of the limit circle frame (511).

8. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 7, wherein The test protective frame (3) is provided with a simulation detection module (6) on the outside, and the simulation detection module (6) includes a temperature control air box (612). Two vertical slots are opened on both sides of the test protective frame (3). Lifting sliders (601) are slidably connected inside the multiple vertical slots. A blower head (602) is fixedly connected to one side of the multiple lifting sliders (601). A sealing slide plate (603) is fixedly connected to the outside of the multiple lifting sliders (601). The same cross frame (605) is fixedly connected to the opposite side of the two sealing slide plates (603) on the same side. Electric telescopic rods (604) are provided on both sides of the test protective frame (3). The driving end of the electric telescopic rod (604) is fixedly connected to one side of the cross frame (605).

9. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 8, wherein Two blowers (602) located on the same side are fixedly connected to the same ventilation pipe (611) at one end, and the air inlet ends of the two ventilation pipes (611) are fixedly connected to metal telescopic pipes (615). A vertical slot two is opened on one side of the test protective frame (3). A lifting slider two (607) is slidably connected inside the vertical slot two. An infrared thermometer (608) is set on one side of the lifting slider two (607). A temperature sensor (610) is set on the other side of the lifting slider two (607). A sealing slide plate two (609) is fixedly connected to the outside of the lifting slider two (607). A linkage rod (606) is fixedly connected to both sides of the sealing slide plate two (609). One side of the linkage rod (606) is fixedly connected to one side of one of the sealing slide plates one (603).

10. The device for detecting shock durability of a plug-in hybrid vehicle according to claim 9, wherein A pump body (613) is provided on the outer side of the test protective frame (3), and a delivery pipe (614) is fixedly connected to the air blowing end of the pump body (613). One end of the delivery pipe (614) is fixedly connected to one end of the metal telescopic pipe (615), and the temperature control box (612) is located inside the test tooling cabinet (1).

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