A pressure detection device for vehicle suspension gas cylinder

Abstract

The application relates to a pressure detection device for vehicle suspension gas cylinders, which comprises a base, a cone arranged on the base, a pressure applying mechanism, a mechanism for applying pressure to the aluminum material of the suspension gas cylinder, and a test mechanism for realizing crack test on the aluminum material of the suspension gas cylinder with different inner diameters. The test mechanism comprises a displacement trigger assembly for judging whether the aluminum material of the suspension gas cylinder is cracked by displacement change, an inner diameter identification assembly for classifying the inner diameter of the aluminum material of the suspension gas cylinder, and a power judging assembly for judging whether the inner diameter identification assembly is normal. The application classifies the inner diameters of different suspension gas cylinder aluminum materials, and then automatically triggers a corresponding number of displacement sensors to monitor the cracking change of the suspension gas cylinder aluminum material, so that the pressure detection precision of the suspension gas cylinder is improved.

Description

Technical Field

[0001] This application relates to the technical field of pressure resistance of aluminum materials for new energy vehicles, and in particular to a pressure resistance testing device for vehicle suspension air tanks. Background Technology

[0002] Currently, air suspension tanks for new energy vehicles have excellent shock absorption properties, improving the ride comfort of these vehicles. As a key material for air shock absorption in new energy vehicles, the pressure resistance of the air suspension tank aluminum profile is a key performance indicator.

[0003] The existing method involves fitting an aluminum profile of an air suspension reservoir onto the cone of a device, and then applying pressure to the aluminum profile using an electronic tensile tester located above it until the lower end of the profile expands and cracks. The electronic tensile tester displays the maximum pressure and stops applying force, with the maximum pressure value being the profile's expansion and pressure resistance result.

[0004] The aforementioned technologies have the following drawbacks: when the lower end of the aluminum profile of the air suspension tank experiences enlarged hole cracking, it is impossible for staff to capture the maximum pressure resistance data of the aluminum profile of the air suspension tank through observation, resulting in low detection accuracy. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a pressure resistance testing device for vehicle suspension air reservoirs.

[0006] The technical solution of the vehicle suspension air tank pressure resistance testing device provided in this application is as follows:

[0007] A pressure resistance testing device for vehicle suspension air tanks includes:

[0008] Base;

[0009] A cone-shaped part is disposed on the base;

[0010] Pressure application mechanism; used to apply pressure to the aluminum material of the suspended gas storage tank; and

[0011] The testing facility is used to test for cracks in aluminum materials of suspended gas storage cylinders with different inner diameters.

[0012] The testing facility includes:

[0013] The displacement triggering component determines whether the aluminum material of the suspended air tank is cracked by detecting changes in displacement.

[0014] An inner diameter identification component is used to classify the inner diameter of the aluminum material in a suspended air reservoir; and

[0015] The power judgment component is used to determine whether the inner diameter recognition component is functioning properly.

[0016] Furthermore, the inner diameter identification component includes:

[0017] The identification frame is movably disposed within the cone.

[0018] The roller is rotatably mounted on the identification frame and fits against the inner wall of the aluminum material of the suspended gas cylinder.

[0019] The adjustment section allows for the classification of the inner diameter of the suspended air cylinder aluminum material by rotating it one revolution.

[0020] The rotation axis of the roller is set along the length of the aluminum material of the suspended gas storage cylinder, and the cone wall is provided with a through hole for the roller to pass through.

[0021] Furthermore, the adjustment unit includes:

[0022] An adjustment block is flexibly mounted on the identification frame and is provided with multiple sensing holes;

[0023] The first reciprocating group is used to realize the reciprocating motion of the adjusting block;

[0024] The first unidirectional restriction group is used to ensure that the first reciprocating group can only be driven by the unidirectional rolling of the roller;

[0025] An infrared counter records the number of times infrared light passes through the sensing hole using infrared sensing.

[0026] Furthermore, the power determination component includes:

[0027] The judgment block is slidably mounted on the movable frame;

[0028] The proximity switch is in contact with the judgment block;

[0029] The second reciprocating group is used to realize the reciprocating motion of the judgment block;

[0030] The second unidirectional restriction group is used to ensure that the roller can only drive the second reciprocating group by rolling in one direction, and the driving direction of the first unidirectional restriction group is opposite to that of the second unidirectional restriction group.

[0031] Furthermore, both the first unidirectional restriction group and the second unidirectional restriction group adopt a ratchet and pawl structure, and the ratchet groove and the pawl have opposite engagement relationships.

[0032] Furthermore, the displacement triggering component includes:

[0033] The trigger ring is fixed on the base;

[0034] Multiple displacement testing sections are elastically arranged on the trigger ring and evenly distributed, divided into multiple groups adapted to the aluminum material of the suspended air tank; and

[0035] The displacement power unit is used to control the different groups of displacement sensor test units to adapt to different inner diameter suspension air storage cylinder aluminum materials.

[0036] Furthermore, the displacement power unit includes:

[0037] A sliding drive assembly is used to control the displacement testing unit to move until it is in contact with the outer wall of the aluminum material of the suspended air storage cylinder;

[0038] A power ring is mounted on the base and is composed of multiple power chambers that are evenly spaced apart.

[0039] Multiple power columns are slidably sealed within the power cavity;

[0040] A pressure regulating assembly is used to individually control the air pressure inside the power chamber and to expel the power column.

[0041] Each of the pressure adjustment groups is controlled by the infrared counter.

[0042] Furthermore, a sliding hole is provided inside the power cavity, and the power column slides and adapts to the sliding hole. The outside of the sliding hole is set as a stepped groove, and the outer end of the power column is also set as a stepped shape. The part of the power column located inside the power cavity is provided with an annular groove, and a sealing ring is installed in the annular groove. The size of the sealing ring is larger than the opening size of the sliding hole.

[0043] Furthermore, the sliding drive assembly includes:

[0044] A drive ring is rotatably mounted on the base and located outside the trigger ring;

[0045] Multiple inclined blocks are equidistantly arranged within the drive ring and correspond to the displacement testing section, and are elastically arranged within the drive ring;

[0046] Multiple electromagnets are used to fix the inclined block to the drive ring after it pops out.

[0047] The plug-in block is elastically disposed within the inclined block and its movement direction is perpendicular to the movement direction of the inclined block;

[0048] A drive block is used to unlock the ramp;

[0049] The drive ring is provided with multiple drive grooves, the inclined block is elastically disposed in the drive groove, the drive block is provided with a plug-in groove, the plug-in block is elastically disposed in the plug-in groove, the upper side wall of the drive groove is provided with a plug-in hole, the drive block slides to fit the plug-in hole, and the length of the drive block is equal to the size of the plug-in hole.

[0050] In summary, the beneficial technical effects of this application are as follows:

[0051] 1. The pressure mechanism applies pressure hydraulically and can also be equipped with a pressure sensor to monitor the pressure during the pressure application process. In actual operation, the suspended air cylinder aluminum material is sleeved on the cone. Since the inner diameter of the suspended air cylinder aluminum material is different, the cone can actually accommodate different specifications of suspended air cylinder aluminum material. As pressure is continuously applied to the suspended air cylinder aluminum material, the suspended air cylinder aluminum material at the contact position with the cone is subjected to a radial force. If the compressive strength limit of the suspended air cylinder aluminum material is reached, the suspended air cylinder aluminum material will avoid cracking or even complete damage. In this embodiment, it is set that the suspended air cylinder aluminum material will expand when cracks occur, that is, it will deform. The testing mechanism determines that the suspended air cylinder aluminum material has reached the compressive strength limit by testing the displacement change generated when cracks occur.

[0052] 2. If the PLC control unit receives a signal from the infrared receiver once, the two symmetrically arranged displacement sensors are triggered to come into contact with the outer wall of the suspended air tank aluminum material. If it is triggered twice, the four symmetrically arranged displacement sensors are triggered. If it is triggered three times, the six symmetrically arranged displacement sensors are triggered. This realizes that as the inner diameter of the suspended air tank aluminum material increases, more displacement sensors need to be triggered to monitor the outer wall of the suspended air tank aluminum material.

[0053] 3. When the PLC control unit detects the signal received by the infrared receiver, the air pump begins to pressurize the corresponding power chamber. Under the action of the sealing ring, the power column and the power chamber are fixed and stable. In addition, when the control power ring moves downward, since only the corresponding number of power columns and power chambers are stable, only the fixed power columns apply pressure to the drive block. After the drive block is located in the insertion hole, the insertion block separates from the insertion hole, and the inclined block is triggered to pop out from the drive ring, pulling the power ring upward. At this time, the control stepper motor drives the gear to rotate, the gear controls the external gear to rotate, and the external gear drives the drive ring to rotate. At the same time, the electromagnet attracts and fixes the inclined block. The inclined surface of the inclined block applies a force to the test block towards the suspended air tank aluminum material until the displacement sensor is in contact with the outer wall of the suspended air tank aluminum material, the rotation of the drive ring stops, and the connection between the slider and the test block is released. The detection of whether the suspended air tank aluminum material is cracked begins. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0055] Figure 2 This is a schematic diagram of the cone and the testing mechanism according to an embodiment of this application;

[0056] Figure 3 This is a cross-sectional view of the cone and the testing mechanism according to an embodiment of this application;

[0057] Figure 4This is a schematic diagram of the inner diameter recognition component according to an embodiment of this application;

[0058] Figure 5 This is a right view of the inner diameter recognition component according to an embodiment of this application.

[0059] Explanation of reference numerals in the attached figures:

[0060] 01. Aluminum material for hanging gas storage tank; 1. Base;

[0061] 2. Cone;

[0062] 3. Pressure application mechanism;

[0063] 40. Identification frame; 41. Roller; 421. Adjusting block; 422. First reciprocating group; 423. First unidirectional limiting group; 424. Infrared counter; 4241. Infrared transmitter; 4242. Infrared receiver; 425. Trigger hole;

[0064] 50. Judgment block; 51. Proximity switch; 53. Second reciprocating group; 54. Second unidirectional limiting group; 541. Drive disk; 542. Rotary disk; 543. Pawl; 544. Ratchet;

[0065] 6. Spray coating components;

[0066] 70. Trigger ring; 71. Displacement testing section; 710. Test block; 711. Slider; 712. Displacement sensor; 713. Moving block; 714. Moving groove; 72. Power ring; 73. Power column; 74. Sliding hole; 75. Sealing ring; 761. Drive ring; 762. Inclined block; 763. Electromagnet; 764. Insertion block; 765. Drive block; 766. Insertion groove; 767. Insertion hole; 768. Stepper motor; 769. Gear; 7610. External gear. Detailed Implementation

[0067] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] This application discloses a pressure resistance testing device for a vehicle suspension air reservoir. (Refer to...) Figures 1-5It includes a base 1; a cone 2 disposed on the base 1; a pressure applying mechanism 3 for applying pressure to the suspended air cylinder aluminum material 01; and a testing mechanism for performing crack testing on the suspended air cylinder aluminum material 01 with different inner diameters. The pressure applying mechanism 3 applies pressure hydraulically and can also be equipped with a pressure sensor to monitor the pressure during the pressure application process. In actual operation, the suspended air cylinder aluminum material 01 is fitted onto the cone 2. Due to the different inner diameters of the suspended air cylinder aluminum material 01, the cone 2 can actually accommodate different... For the same specification of suspended air cylinder aluminum material 01, as pressure is continuously applied to the suspended air cylinder aluminum material 01, the suspended air cylinder aluminum material 01 is subjected to a radial force at the contact position with the cone 2. If the compressive strength limit of the suspended air cylinder aluminum material 01 is reached, the suspended air cylinder aluminum material 01 will avoid cracking or even complete damage. In this embodiment, it is set that the suspended air cylinder aluminum material 01 will expand when cracks occur, that is, it will deform. The testing agency judges that the suspended air cylinder aluminum material 01 has reached the compressive strength limit by testing the displacement change generated when cracks occur.

[0069] The testing mechanism includes: a displacement triggering component, which determines whether the suspended air cylinder aluminum material 01 is cracked by displacement changes; an inner diameter identification component, which is used to classify the inner diameter of the suspended air cylinder aluminum material 01; and a power judgment component, which is used to determine whether the inner diameter identification component is working properly, so as to determine the inner diameter range of the suspended air cylinder aluminum material 01 by using the inner diameter identification component, and thus different numbers of displacement triggering components can be used to accurately determine the changes in the suspended air cylinder aluminum material 01; the power judgment component is used to determine whether the inner diameter identification component is working properly. In this embodiment, the friction force generated during the rotation of the suspended air cylinder aluminum material 01 is controlled to be recognized by the inner diameter identification component, so that the inner diameter identification component can be determined to be in normal working condition.

[0070] The inner diameter identification component includes: an identification frame 40, movably disposed within the cone 2; a roller 41, rotatably disposed on the identification frame 40 and in contact with the inner wall of the suspended air cylinder aluminum material 01; and an adjustment part 42, which classifies the inner diameter of the suspended air cylinder aluminum material 01 by rotating it one revolution. The rotation axis of the roller 41 is arranged along the length direction of the suspended air cylinder aluminum material 01. The wall of the cone 2 is provided with a through hole for the roller 41 to pass through. The size of the through hole is not less than the diameter of the tire, thereby ensuring that the tire can pass through the through hole without obstruction and rotate smoothly. The identification frame 40 is elastically disposed within the cone. Inside the body 2, the cone 2 is equipped with a slide rail for the identification frame 40 to slide. At the same time, multiple springs are fixedly connected between the identification frame 40 and the inner wall of the cone 2. The springs are evenly spaced along the vertical direction. When the suspended air cylinder aluminum material 01 is sleeved on the outside of the cone 2, the operator needs to squeeze the roller 41 into the cone 2 until the suspended air cylinder aluminum material 01 moves to the position of the roller 41. At this time, the outer wall of the roller 41 is in contact with the inner wall of the suspended air cylinder aluminum material 01. Under the action of friction between the roller 41 and the suspended air cylinder aluminum material 01, the rotation of the suspended air cylinder aluminum material 01 can drive the roller 41 to rotate.

[0071] In this embodiment, the cross-sectional diameter of the roller 41 is set to be smaller than the inner diameter of the suspended air cylinder aluminum material 01. Therefore, when the suspended air cylinder aluminum material 01 rotates once, the roller 41 will definitely rotate more than once. As the diameter of the suspended air cylinder aluminum material 01 increases, the number of rotations of the roller 41 when the suspended air cylinder aluminum material 01 rotates once also gradually increases. In this embodiment, it is mainly used to automatically identify the inner diameter of the suspended air cylinder aluminum material 01 and classify the inner diameter of the suspended air cylinder aluminum material 01. If the inner diameter of the suspended air cylinder aluminum material 01 increases, the number of displacement monitoring devices on the outer wall of the suspended air cylinder aluminum material 01 can be gradually increased according to the number of rotations of the roller 41. Because if the number of detection stations does not increase when the inner diameter of the suspended air cylinder aluminum material 01 increases, it is easy to fail to accurately monitor the expansion process of the suspended air cylinder aluminum material 01 in a timely manner, which will affect the accuracy of the pressure resistance test.

[0072] The adjustment unit 42 includes: an adjustment block 421, elastically mounted on the identification frame 40, and provided with multiple sensing holes; a first reciprocating group 422, used to realize the reciprocating motion of the adjustment block 421; a first unidirectional limiting group 423, used to realize that the roller 41 can only drive the first reciprocating group 422 by rolling in one direction; and an infrared counter 424, which records the number of times infrared rays pass through the sensing holes through infrared sensing. In this embodiment, the infrared transmitter 4241 and the infrared receiver 4242 determine whether they are aligned with the sensing holes. The infrared receiver 4242 records the number of signals it receives through the PLC control unit. In this embodiment, three sensing holes are used as an example for explanation. If the infrared receiver 4242 can receive three signals from the infrared transmitter 4241 when the suspended air tank aluminum material 01 rotates one revolution, then it is necessary to monitor the displacement of multiple positions of the suspended air tank aluminum material 01.

[0073] The power judgment component includes: a judgment block 50, which is slidably mounted on the movable frame; a proximity switch 51, which contacts the judgment block 50; a second reciprocating group 53, which is used to realize the reciprocating motion of the judgment block 50; and a second one-way limiting group 54, which is used to ensure that the roller 41 can only drive the second reciprocating group 53 by rolling in one direction, and the driving direction of the first one-way limiting group 423 is opposite to that of the second one-way limiting group 54. In this embodiment, the power judgment component is mainly used to test whether the suspended air tank aluminum material 01 can drive the roller 41. In this embodiment, the proximity switch 51 can be controlled by a PLC controller and is connected to a buzzer or an indicator light. As long as the judgment block 50 is separated from the proximity switch 51, the indicator light will light up or the buzzer will start to sound.

[0074] Both the first one-way restriction group 423 and the second one-way restriction group 54 adopt a ratchet and pawl structure 543, and the ratchet groove 544 and the pawl 543 have opposite engagement relationships. In this embodiment, both the first one-way restriction group 423 and the second one-way restriction group 54 include a drive disk 541, a rotating disk 542, a pawl 543, and an elastic element. The drive disk 541 is coaxially arranged with the roller 41, the rotating disk 542 is sleeved on the drive disk 541, and one end of the pawl 543 is hinged to the outside of the drive disk 541. The inner ring of the rotating disk 542 is provided with multiple ratchet grooves 544, and the tip of the pawl 543 is inserted into the ratchet groove 544. The elastic element is used to ensure that the pawl 543 is always inserted into the ratchet groove 544. Of course, the only difference between the first one-way restriction group 423 and the second one-way restriction group 54 is the pawl 543. The orientations of 43 and ratchet 544 are different. That is, when roller 41 rotates clockwise, the rotating disk 542 of the first one-way restriction group 423 starts to rotate, while the driving disk 541 of the second one-way restriction group 54 idles. Similarly, when roller 41 rotates counterclockwise, the driving disk 541 of the first one-way restriction group 423 idles, while the rotating disk 542 of the second one-way restriction group 54 starts to rotate. Therefore, when it is necessary to first determine the friction between roller 41 and the suspended air tank aluminum material 01, the suspended air tank aluminum material 01 can be controlled to rotate counterclockwise. At this time, the rotating disk 542 of the second one-way restriction group 54 starts to rotate. Similarly, when it is necessary to determine the inner diameter range of the suspended air tank aluminum material 01, the suspended air tank aluminum material 01 is controlled to rotate clockwise.

[0075] The first reciprocating group 422 and the second reciprocating group 53 can be driven by a screw drive or a half-gear 769 drive. In this embodiment, the half-gear 769 drive is preferred. Both the first reciprocating group 422 and the second reciprocating group 53 include a half-gear 769, two racks and a reciprocating rod. The two half-gears 769 are fixedly connected to the two rotating disks 542 respectively. The two racks are located on both sides of the half-gear 769 respectively, and only one rack is engaged with the half-gear 769 during the movement. Thus, as the half-gear 769 rotates, it can be engaged with the two racks respectively. The reciprocating rod is used to connect the ends of the two racks. Therefore, the reciprocating rod of the first reciprocating group 422 is fixedly connected to the adjusting block 421, while the reciprocating rod of the second reciprocating group 53 is fixedly connected to the judgment block 50.

[0076] When the suspended air tank aluminum material 01 begins to rotate counterclockwise, the half gear 769 of the second reciprocating group 53 is driven to rotate by the roller 41. At this time, under the action of the reciprocating rod, the judgment block 50 separates from the proximity switch 51. This proves that the friction between the roller 41 and the suspended air tank aluminum material 01 is stable. Conversely, it proves that the friction between the roller 41 and the suspended air tank aluminum material 01 is not enough to drive the roller 41 to rotate, and it is necessary to increase the friction between the suspended air tank aluminum material 01 and the roller 41. In this embodiment, the movable frame is also provided with a spraying assembly 6 for increasing tire friction. The spraying assembly 6 is used to spray tire-specific rubber paint, which is a strong adhesion coating specially designed for rubber surfaces, containing wear-resistant resin and carbon fiber particles. The roller 41 and the suspended air tank aluminum material 01 are greatly enlarged. The spraying assembly adopts the existing spraying equipment, but the spraying amount is less than the conventional material used in the existing technology. Its main purpose is to enable the roller 41 and the suspended air tank aluminum material 01 to rotate together. In addition, the spraying assembly 6 can be set on the movable frame or outside the cone 2, depending on the actual situation. After the spraying is completed, the suspended air tank aluminum material 01 is controlled to rotate counterclockwise until the judgment block 50 can move away from the proximity switch 51. At this time, the judgment of the rotation between the roller 41 and the suspended air tank aluminum material 01 can be completed. In this embodiment, it is determined that if the friction between the roller 41 and the suspended air tank aluminum material 01 is insufficient, the roller 41 will not rotate at all.

[0077] When it is necessary to classify the inner diameter of the suspended air tank aluminum material 01, the suspended air tank aluminum material 01 is controlled to rotate clockwise. Similarly, the rotating disk 542 of the first one-way limiting group 423 starts to drive the corresponding half gear 769 to rotate. The transmission relationship between the half gear 769 and the rack starts to drive the reciprocating rod to start moving. As the suspended air tank aluminum material 01 rotates one revolution, the PLC control switch records the number of infrared transmitters 4241 received by the infrared receiver 4242.

[0078] The displacement triggering assembly includes: a trigger ring 70, fixed on the base 1; multiple displacement testing parts 71, all elastically disposed on the trigger ring 70 and evenly distributed, divided into multiple groups adapted to the suspended air tank aluminum material 01; and a displacement power unit for controlling the different groups of displacement sensor 712 testing parts to adapt to different inner diameter suspended air tank aluminum materials 01. Each displacement testing part 71 includes: a test block 710, a slider 711, and a displacement sensor 712. The test block 710 is elastically disposed on the trigger ring 70. In this embodiment, since three trigger holes 425 are provided as an example, the trigger ring 70 is divided into six equal parts at equal intervals, and the multiple displacement testing parts 71 are respectively disposed at the six equal parts of the trigger ring 70. The bottom of the test block 710 is fixedly connected to... The moving block 713 and the trigger ring 70 are respectively provided with a moving groove 714. The moving block 713 slides in the moving groove 714 and the spring is used to connect the end of the moving block 713 to the inner wall of the end of the moving groove 714. The test block 710 is also provided with a sliding groove for the slider 711 to slide. The displacement sensor 712 is fixedly connected to the end of the slider 711. The end of the displacement sensor 712 is set towards the suspended air tank aluminum material 01. The electromagnet 763 is fixed in the sliding groove and is used to fix the slider 711. Only when the pressure resistance test of the suspended air tank aluminum material 01 starts will the electromagnet 763 be de-energized and separated from the slider 711. If the displacement sensor 712 detects displacement, it proves that a crack or even break has occurred at the corresponding position of the suspended air tank aluminum material 01.

[0079] In this embodiment, it is emphasized again that if the PLC control unit receives a signal from the infrared receiver 4242 once, the two symmetrically arranged displacement sensors 712 are triggered to contact the outer wall of the suspended air tank aluminum material 01. If the signal is received twice, four symmetrically arranged displacement sensors 712 are triggered; if the signal is received three times, six symmetrically arranged displacement sensors 712 are triggered. This realizes that as the inner diameter of the suspended air tank aluminum material 01 increases, more displacement sensors 712 need to be triggered to monitor the outer wall of the suspended air tank aluminum material 01. Of course, if the signal from the infrared receiver 4242 is received twice, but the adjusting block 421 still moves a certain distance, and no third signal is received, then it is still processed as a two-signal operation.

[0080] The displacement power unit includes: a sliding drive assembly for controlling the movement of the displacement testing unit 71 to fit against the outer wall of the suspended air reservoir aluminum material 01; a power ring 72, which is raised and lowered on the base 1, and the power ring 72 is composed of multiple equally spaced power chambers; multiple power columns 73, which are slidably sealed inside the power chambers; and a pressure regulating assembly for individually controlling the air pressure inside the power chambers and squeezing out the power columns 73. Each pressure regulating assembly is controlled by an infrared counter 424. Similarly, according to the above description, the displacement sensor 71 at different positions will be adjusted according to different counts. 2. It needs to be triggered to move to fit against the outer wall of the aluminum material 01 of the suspended air tank. Therefore, the number of triggers of the power column 73 is also the same. The pressure adjustment group includes an air pump and multiple air pipes. The multiple air pipes are connected to multiple power chambers respectively. Solenoid valves are also installed on the air pipes. In the initial state, the power column 73 falls downward under its own gravity, but it does not have a squeezing force. That is, it is still in a sliding connection state with the power chamber. Only by pressurizing towards the corresponding power chamber can the power column 73 be kept in a stable and fixed state with the power chamber.

[0081] A sliding hole 74 is provided inside the power chamber. The power column 73 slides and adapts to the sliding hole 74. The outer side of the sliding hole 74 is set as a stepped groove, and the outer end of the power column 73 is also set as a stepped shape. The part of the power column 73 located inside the power chamber is provided with an annular groove. A sealing ring 75 is installed in the annular groove. The size of the sealing ring 75 is larger than the opening size of the sliding hole 74. In the initial state, the power column 73 falls naturally, and the sealing ring 75 abuts against the inner side of the sliding hole 74. As it is pressurized into the power chamber, the connection between the power column 73 and the power chamber is sealed under the action of the sealing ring 75. As the pressure continues to increase, the power column 73 is squeezed and locked in the position of the sliding hole 74 under the action of the pressure inside and outside the power chamber. The power column 73 and the power chamber are in a fixed state at this time.

[0082] The sliding drive assembly includes a drive ring 761, which is rotatably mounted on the base 1 and located outside the trigger ring 70. In this embodiment, the drive ring 761 is driven by a stepper motor 768, a gear 769, and an external gear 7610. The external gear 7610 is fixed to the outside of the drive ring 761, the stepper motor 768 is fixed on the base 1, the gear 769 is rotatably connected to the base 1, and the gear 769 is meshed with the external gear 7610. The output end of the stepper motor 768 is coaxially fixed with the output wheel to achieve the driving effect of the drive ring 761. In this embodiment, the rotation angle of the drive ring 761 only requires the wedge block 762 to squeeze out the test block 710 until the tip of the wedge block 762 abuts against the end of the test block 710. Afterward, the drive ring 761 needs to be rotated back. The power ring 72 is raised and lowered by multiple cylinders. The cylinders are fixed on the base 1 and located inside the drive ring 761. However, as mentioned above, the rotation angle of the drive ring 761 is small, so it will not cause the inclined block 762 to conflict with the cylinder.

[0083] Multiple inclined blocks 762 are evenly spaced within the drive ring 761 and correspond to the displacement testing section 71, elastically positioned within the drive ring 761. The inclined surfaces of the inclined blocks 762 are tilted towards the test block 710. Multiple electromagnets 763 are used to attract and fix the inclined blocks 762 onto the drive ring 761 after they are ejected. The inclined blocks 762 and the drive ring 761 are also fixedly connected by springs. The trigger ring 70 is provided with mounting holes, and the electromagnets 763 are installed in the mounting holes. When the inclined blocks 762 are ejected, the electromagnets 763 are energized and attract the bottom surface of the inclined blocks 762, thus fixing the inclined blocks 762 and the drive ring 761 in a fixed state. A plug-in block 764 is elastically set within an inclined block 762, and its movement direction is perpendicular to the movement direction of the inclined block 762; a drive block 765 is used to unlock the inclined block 762; a drive ring 761 is provided with multiple drive grooves, the inclined block 762 is elastically set within the drive grooves, the drive block 765 is provided with a plug-in groove 766, the plug-in block 764 is elastically set within the plug-in groove 766, the plug-in block 764 and the inner wall of the end of the plug-in groove 766 are connected by a spring, the upper side wall of the drive groove is provided with a plug-in hole 767, the plug-in hole 767 is provided for observation, the drive block 765 slides to fit into the plug-in hole 767, and the length of the drive block 765 is equal to the size of the plug-in hole 767.

[0084] When the PLC control unit detects the signal received by the infrared receiver 4242, the air pump begins to pressurize the corresponding power chamber. Under the action of the sealing ring 75, the power column 73 and the power chamber are fixed and stable. In addition, when the control power ring 72 moves downward, since only the corresponding number of power columns 73 are stable with the power chamber, only the fixed power columns 73 apply pressure to the drive block 765. After the drive block 765 is located in the insertion hole 767, the insertion block 764 separates from the insertion hole 767, and the inclined block 762 is triggered to pop out from the drive ring 761, pulling the power upward. Ring 72, at this time, controls stepper motor 768 to drive gear 769 to rotate, gear 769 controls external gear 7610 to rotate, external gear 7610 drives drive ring 761 to rotate, at the same time, electromagnet 763 attracts and fixes inclined block 762, the inclined surface of inclined block 762 applies a force to test block 710 towards the suspended air storage cylinder aluminum material 01 until displacement sensor 712 is in contact with the outer wall of suspended air storage cylinder aluminum material 01, the rotation of drive ring 761 stops, and the connection between slider 711 and test block 710 is released, and the detection of whether suspended air storage cylinder aluminum material 01 is cracked begins. It should be emphasized that in this process, the distance driven by inclined block 762 to test block 710 is not complete, therefore, in this embodiment, the distance that inclined block 762 controls the movement of test block 710 is sufficient to adapt to different specifications of suspended air storage cylinder aluminum material 01.

[0085] The implementation principle of the pressure resistance detection device for vehicle suspension air tank in this application embodiment is as follows: When it is necessary to classify the inner diameter of the suspension air tank aluminum material 01, the suspension air tank aluminum material 01 is controlled to rotate clockwise. Similarly, the rotating disk 542 of the first unidirectional limiting group 423 starts to drive the corresponding half gear 769 to rotate. The transmission relationship between the half gear 769 and the rack starts to drive the reciprocating rod to start moving. As the suspension air tank aluminum material 01 rotates one revolution, the PLC control switch records the number of infrared transmitters 4241 received by the infrared receiver 4242.

[0086] When the aluminum material 01 of the suspension air tank starts to rotate counterclockwise, the half gear 769 of the second reciprocating group 53 is driven by the roller 41 to start rotating. At this time, under the action of the reciprocating rod, the judgment block 50 separates from the proximity switch 51. This proves that the friction between the roller 41 and the aluminum material 01 of the suspension air tank is stable. Conversely, it proves that the friction between the roller 41 and the aluminum material 01 of the suspension air tank is not enough to drive the roller 41 to rotate. It is necessary to increase the friction between the aluminum material 01 of the suspension air tank and the roller 41. The spraying component 6 is used to spray tire-specific rubber paint until the roller 41 and the aluminum material 01 of the suspension air tank rotate together.

[0087] When the PLC control unit detects the signal received by the infrared receiver 4242, the air pump begins to pressurize the corresponding power chamber. Under the action of the sealing ring 75, the power column 73 and the power chamber are fixed and stable. In addition, when the control power ring 72 moves downward, since only the corresponding number of power columns 73 are stable with the power chamber, only the fixed power columns 73 apply pressure to the drive block 765. After the drive block 765 is located in the insertion hole 767, the insertion block 764 separates from the insertion hole 767, and the inclined block 762 is triggered to pop out from the drive ring 761, pulling the power upward. Ring 72, at this time, control stepper motor 768 to drive gear 769 to rotate, gear 769 controls external gear 7610 to rotate, external gear 7610 drives drive ring 761 to rotate, at the same time electromagnet 763 attracts and fixes inclined block 762, the inclined surface of inclined block 762 applies a force to test block 710 towards the movement of suspended air storage cylinder aluminum material 01 until displacement sensor 712 is in contact with the outer wall of suspended air storage cylinder aluminum material 01, stop the rotation of drive ring 761, and release the connection between slider 711 and test block 710, and start to detect whether suspended air storage cylinder aluminum material 01 is cracked.

[0088] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "a" or "an," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising," "including," and similar terms mean that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0089] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pressure resistance testing device for vehicle suspension air tanks, characterized in that, include: Base; A cone-shaped part is disposed on the base. Pressure application mechanism; Used to apply pressure to the aluminum material of the suspended gas storage cylinder; as well as The testing facility is used to test for cracks in aluminum materials of suspended gas storage cylinders with different inner diameters. The testing facility includes: The displacement triggering component determines whether the aluminum material of the suspended air tank is cracked by detecting changes in displacement. An inner diameter identification component is used to classify the inner diameter of the aluminum material in a suspended air reservoir; and The power judgment component is used to determine whether the inner diameter recognition component is functioning properly; The inner diameter identification component includes: The identification frame is movably disposed within the cone. The roller is rotatably mounted on the identification frame and fits against the inner wall of the aluminum material of the suspended gas cylinder. The adjustment section allows for the classification of the inner diameter of the suspended air cylinder aluminum material by rotating it one revolution. The rotation axis of the roller is set along the length of the aluminum material of the suspended gas storage cylinder, and the cone wall is provided with a through hole for the roller to pass through. The adjustment unit includes: An adjustment block is flexibly mounted on the identification frame and is provided with multiple sensing holes; The first reciprocating group is used to realize the reciprocating motion of the adjusting block; The first unidirectional restriction group is used to ensure that the first reciprocating group can only be driven by the unidirectional rolling of the roller; An infrared counter records the number of times infrared light passes through the sensing hole using infrared sensing.

2. The pressure resistance testing device for a vehicle suspension air reservoir according to claim 1, characterized in that, The power determination component includes: The judgment block is slidably mounted on the identification frame; The proximity switch is in contact with the judgment block; The second reciprocating group is used to realize the reciprocating motion of the judgment block; The second unidirectional restriction group is used to ensure that the roller can only drive the second reciprocating group by rolling in one direction, and the driving direction of the first unidirectional restriction group is opposite to that of the second unidirectional restriction group.

3. The pressure resistance testing device for a vehicle suspension air reservoir according to claim 2, characterized in that, Both the first unidirectional restriction group and the second unidirectional restriction group adopt a ratchet and pawl structure, and the ratchet groove and the pawl have opposite engagement relationships.

4. The pressure resistance testing device for a vehicle suspension air reservoir according to claim 3, characterized in that, The displacement triggering component includes: The trigger ring is fixed on the base; Multiple displacement testing sections are elastically arranged on the trigger ring and evenly distributed, divided into multiple groups adapted to the aluminum material of the suspended air tank; and The displacement power unit is used to control the displacement test unit of different groups to suspend the aluminum material of the air storage cylinder with different inner diameters.

5. The pressure resistance testing device for a vehicle suspension air reservoir according to claim 4, characterized in that, The displacement power unit includes: A sliding drive assembly is used to control the displacement testing unit to move until it is in contact with the outer wall of the aluminum material of the suspended air storage cylinder; A power ring is mounted on the base and is composed of multiple power chambers that are evenly spaced apart. Multiple power columns are slidably sealed within the power cavity; A pressure regulating assembly is used to individually control the air pressure inside the power chamber and to expel the power column. Each of the pressure adjustment groups is controlled by the infrared counter.

6. The pressure resistance testing device for a vehicle suspension air reservoir according to claim 5, characterized in that, The power cavity is provided with a sliding hole, and the power column is adapted to slide with the sliding hole. The outside of the sliding hole is provided with a stepped groove, and the outer end of the power column is also provided with a stepped shape. The part of the power column located inside the power cavity is provided with an annular groove, and a sealing ring is installed in the annular groove. The size of the sealing ring is larger than the opening size of the sliding hole.

7. The pressure resistance testing device for a vehicle suspension air reservoir according to claim 6, characterized in that, The sliding drive assembly includes: A drive ring is rotatably mounted on the base and located outside the trigger ring; Multiple inclined blocks are equidistantly arranged within the drive ring and correspond to the displacement testing section, and are elastically arranged within the drive ring; Multiple electromagnets are used to fix the inclined block to the drive ring after it pops out. The plug-in block is elastically disposed within the inclined block and its movement direction is perpendicular to the movement direction of the inclined block; A drive block is used to unlock the ramp; The drive ring is provided with multiple drive grooves, the inclined block is elastically disposed in the drive groove, the drive block is provided with a plug-in groove, the plug-in block is elastically disposed in the plug-in groove, the upper side wall of the drive groove is provided with a plug-in hole, the drive block slides to fit the plug-in hole, and the length of the drive block is equal to the size of the plug-in hole.

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