Fuel automobile valve durability test equipment and method

Abstract

The invention discloses a device and a method for testing durability of a fuel automobile valve, and provides the following scheme for solving the problems that in the prior art, when a valve is repeatedly opened and closed through mechanical operation equipment, the mechanical operation direction needs to be continuously changed, and the mechanical operation equipment is likely to break down due to long-term adjustment, so that the test is interrupted. Comprising a detection table, lifting rods are fixedly connected to the four corners of the top of the detection table, the tops of the four lifting rods are fixedly connected with the same top frame, and a test assembly is arranged at the bottom of the top frame. According to the fuel automobile valve durability testing device and method, in the testing process, the driving motor rotates in one direction all the time, damage caused by excessive direction adjustment is avoided, the integrity of the device in the testing process is ensured, it is ensured that the testing process can be smoothly completed, and the testing efficiency is improved. And the accuracy of the test result is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of fuel vehicle valve durability testing, and in particular to a fuel vehicle valve durability testing device and method. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters (temperature, pressure, and flow) of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. During the manufacturing of fuel vehicle valves, the finished products need to be tested for durability.

[0003] During use, the existing fuel vehicle valve durability test equipment drives the valve to open and close repeatedly through mechanical operation. During the repeated opening and closing process, the mechanical operation equipment needs to constantly adjust the direction. The durability test requires thousands of openings and closings, which will cause a huge load on the mechanical operation equipment, resulting in test failures due to operation obstructions during the test. There will also be errors in the rotation cycle that will lead to errors in the test results. Therefore, the existing durability test equipment lacks use value. Summary of the invention

[0004] In view of the existing fuel vehicle valve durability test equipment in the prior art, during use, the valve is repeatedly opened and closed by mechanical operation. During the repeated opening and closing process, the mechanical operation equipment needs to be constantly adjusted in direction. The durability test requires thousands of openings and closings, which will cause a huge load on the mechanical operation equipment, resulting in the failure of the test due to operation obstruction during the test. There is also a technical problem that there is an error in the rotation cycle leading to an error in the test result. The present invention adopts the following technical solution:

[0005] A fuel vehicle valve durability test device comprises a test bench, wherein the top four corners of the test bench are fixedly connected with lifting rods, and the tops of the four lifting rods are fixedly connected with the same top frame, and a test assembly is provided at the bottom of the top frame, wherein the test assembly comprises an annular limit rail, and the annular limit rail is fixedly connected to the bottom of the top frame, and two follow-up slides are slidably connected inside the annular limit rail, and the same motor frame is fixedly connected to the two follow-up slides, and a fixed groove is opened on the top of the motor frame, and a driving motor is fixedly connected inside the fixing groove, and the top of the driving motor is fixedly connected with an iron plate, and the bottom of the top frame located above the iron plate is fixedly connected with an electromagnet, and the electromagnet is in contact with the iron plate, and the outer side wall of the annular limit rail is fixedly connected with two mounting rods, and the ends of the two mounting rods are fixedly connected with the same reset frame, and the output shaft of the driving motor is fixedly connected with the driving shaft through a coupling, and the outer side wall of the driving shaft is fixedly connected with a rotating connecting rod.

[0006] A further arrangement of the present invention is that an annular limit plate is fixedly connected to the top of the reset frame, and a limit slide groove is opened on the annular limit plate, a rotating slider is slidably connected inside the limiting slide groove, the rotating slider is fixedly connected to the outer side wall of the rotating connecting rod, the bottom of the rotating slider is fixedly connected to a sliding pressure plate, a plurality of reset spring rods are placed inside the reset frame, the same middle connecting block is fixedly connected between every two adjacent reset spring rods, one end of one of the reset spring rods is fixedly connected to one side of the sliding pressure plate, a fixed block is fixedly connected to the bottom inner wall of the reset frame near the sliding pressure plate, and the fixed block is fixedly connected to one end of one of the reset spring rods.

[0007] A further configuration of the present invention is that a test point docking assembly is provided below the test assembly, and the test point docking assembly includes an enclosing frame, the bottom of the rotating connecting rod is fixedly connected to a fixed plate, the bottom of the fixed plate is fixedly connected to a hydraulic cylinder three, and the output end of the hydraulic cylinder three is fixedly connected to the top of the enclosing frame.

[0008] A further configuration of the present invention is that the inner wall of the enclosing frame is fixedly connected to two inner connecting pieces, and the same enclosing airbag is fixedly connected to the opposite side of the two inner connecting pieces, the outer wall of the enclosing airbag is provided with an exhaust hole, the inside of the exhaust hole is fixedly connected to an exhaust pipe, the outer wall of the exhaust pipe is connected to an air valve through a flange, the inner wall of the enclosing frame is fixedly connected to a pump rack, the bottom of the pump rack is fixedly connected to an air pump, the air delivery end of the air pump is fixedly connected to an air guide pipe, and one end of the air guide pipe is inserted into the interior of the enclosing airbag.

[0009] A further configuration of the present invention is that two local adjustment rails are fixedly connected to the inner wall of the enclosing frame, and the two local adjustment rails are symmetrically distributed around the center point of the enclosing frame, the interiors of the two local adjustment rails are slidably connected with adjustment sliders, the outer side walls of the two adjustment sliders are fixedly connected with a connecting frame, the ends of the local adjustment rails are fixedly connected with end blocks, the side of the end block facing the connecting frame is connected to an electric telescopic rod 1 through a hinge, and the output end of the electric telescopic rod 1 is connected to one side of the connecting frame through a hinge.

[0010] A further configuration of the present invention is that one side of the connecting frame is fixedly connected to an electric telescopic rod 2, and the output end of the electric telescopic rod 2 is fixedly connected to a pressing column, the outer wall of the pressing column away from the connecting frame is provided with a lifting groove, the interior of the lifting groove is slidably connected to two lifting sliders, the top and bottom of the pressing column are fixedly connected to end frames, the side of the end frame facing the adjacent lifting slider is fixedly connected to an electric telescopic rod 3, the output end of the electric telescopic rod 3 is fixedly connected to the outer wall of the adjacent lifting slider, and one side of the lifting slider is fixedly connected to a pressing plate.

[0011] A further configuration of the present invention is that installation grooves are opened at both ends of the top of the detection platform, and the bottom inner walls of the two installation grooves are fixedly connected with vertical plates, one side of the two vertical plates is fixedly connected with hydraulic cylinders 1, and the output ends of the two hydraulic cylinders 1 are provided with internal and external positioning components.

[0012] A further configuration of the present invention is that the internal and external positioning assembly includes an embedded column, and the embedded column is fixedly connected to the output end of hydraulic cylinder one, the embedded column is connected to an inner support plate at an equal distance from the outer wall of hydraulic cylinder one through a hinge, the outer wall of the embedded column is fixedly connected to a rear support ring piece, the rear support ring piece is fixedly connected to the outer wall of each inner support plate at an equal distance, and one end of the extrusion spring rod is fixedly connected to the outer wall of the adjacent inner support plate.

[0013] A further arrangement of the present invention is that both sides of each of the inner support plates are fixedly connected with an axis plate, and the opposite sides of the two axis plates located on the same inner support plate are fixedly connected with the same deflection axis, the outer wall of the deflection axis is sleeved with an outer pressure plate, the outer wall of the embedded column is fixedly connected with an annular frame, the side of the annular frame facing each outer pressure plate is fixedly connected with hydraulic cylinder 2, and the output end of each hydraulic cylinder 2 is fixedly connected with a matching pressure plate.

[0014] A fuel vehicle valve durability testing method, using the fuel vehicle valve durability testing device as described above, comprises the following steps:

[0015] Step 1: When positioning the valve, place the valve in the two inner and outer positioning components, adjust the hydraulic cylinder 1 to drive the embedded column to move toward the inside of the valve. During the movement, the inner support plate contacts and squeezes the inner wall of the valve, and the squeezing spring rod is compressed. The squeezing spring rod drives the inner support plate to achieve the positioning of the inner wall of the valve. Then adjust the hydraulic cylinder 2 to drive the fitting pressure plate to squeeze the outer pressure plate, so that the outer pressure plate deflects and fits the outer wall of the valve, thereby completing the inner and outer positioning of the valve;

[0016] Step 2: Adjust the hydraulic cylinder 3 to drive the enclosing frame to the periphery of the turntable. When the enclosing frame encloses the turntable, the enclosing airbag contacts and squeezes the outer side of the turntable, and the initial limit of the turntable is achieved through the enclosing airbag. Then adjust the electric telescopic rod 1 to drive the two pressing columns to move to the concave part of the outer side of the turntable, and then adjust the electric telescopic rod 2 to drive the pressing column to press into the groove. At the same time, adjust the telescopic rod 3 to drive the upper and lower pressing plates to press and limit the upper and lower ends of the turntable.

[0017] Step 3: After the valve positioning and docking is completed, start the drive motor to drive the rotating connecting rod to rotate, thereby driving the valve below it to open. When the drive motor drives the valve to rotate 180°, the drive motor stops running, and the electromagnet above the drive motor is powered off. The electromagnet and the iron plate are in contact and not adsorbed, then the reset spring rods inside the reset frame drive the rotating connecting rod to reset 180°. During the reset process, the valve is closed, and the drive motor is started again. Repeat the above operation until the valve durability test is completed.

[0018] The beneficial effects of the present invention are:

[0019] 1. By setting up a test component, when conducting a valve durability test, after the valve is positioned and docked through the internal and external positioning components and the test point docking components, in a single test process, the drive motor is started to drive the rotating connecting rod to rotate, thereby driving the valve below it to open. After the drive motor drives the valve to rotate 180°, the drive motor stops running, and the electromagnet above the drive motor is powered off. The electromagnet and the iron plate are in contact and not adsorbed. Then, each reset spring rod inside the reset frame drives the rotating connecting rod to reset 180°. During the reset process, the valve is closed. At the same time, the follow-up slide rotates in the annular limit rail, and the drive motor is driven to rotate. Repeating the operation can realize repeated opening and closing of the valve and complete the durability test. During the test, the drive motor always rotates in one direction to avoid damage caused by excessive directional adjustment, thereby ensuring the integrity of the equipment during the test, thereby ensuring that the test process can be completed smoothly and the accuracy of the test results is guaranteed;

[0020] 2. By setting up a test point docking assembly, before rotating the opening and closing turntable above the valve, adjust the hydraulic cylinder three to drive the enclosing frame to the periphery of the turntable. When the enclosing frame encloses the turntable, the enclosing airbag contacts and squeezes the outer side of the turntable, and the initial limitation of the turntable is achieved by the enclosing airbag. Then adjust the electric telescopic rod one to drive the two pressing columns to move to the concave part of the outer side of the turntable, and then adjust the electric telescopic rod two to drive the pressing column to press into the groove, so that the enclosing airbag and the turntable fit tightly. At the same time, adjust the telescopic rod three to drive the upper and lower pressing plates to press and limit the upper and lower ends of the turntable, ensuring that the turntable and the test point docking assembly are closely docked, thereby improving its stability during the test;

[0021] 3. By setting up the inner and outer positioning components, when positioning the valve, the valve is placed in the two inner and outer positioning components, and the hydraulic cylinder is adjusted to drive the embedded column to move toward the inside of the valve. During the movement, the inner support plate contacts and squeezes the inner wall of the valve, and the extrusion spring rod is compressed. The extrusion spring rod drives the inner support plate to realize the positioning of the inner wall of the valve. Then, the hydraulic cylinder is adjusted to drive the fitting pressure plate to squeeze the outer pressure plate, so that the outer pressure plate is deflected and fits the outer wall of the valve, thereby completing the inner and outer positioning of the valve and further improving its stability during the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention provides a schematic diagram of the overall structure of a fuel vehicle valve durability testing device.

[0023] Figure 2 The present invention provides a top view of the overall structure of a fuel vehicle valve durability testing device.

[0024] Figure 3 The present invention provides a schematic diagram of the combined structure of a test assembly and a test point docking assembly of a fuel vehicle valve durability test device.

[0025] Figure 4 The present invention provides a schematic diagram of the test assembly structure of a fuel vehicle valve durability test device.

[0026] Figure 5 This is a disassembled diagram of the annular limit plate and reset frame structure of a fuel vehicle valve durability testing device proposed by the present invention.

[0027] Figure 6 The present invention provides a schematic structural diagram of a test point docking assembly of a fuel vehicle valve durability test device.

[0028] Figure 7 This is a schematic diagram of the internal structure of an enclosing frame of a fuel vehicle valve durability testing device proposed by the present invention.

[0029] Figure 8 The present invention provides a schematic diagram of the combined structure of a local adjustment rail and a pressing column of a fuel vehicle valve durability testing device proposed by the present invention.

[0030] Fig. 9 This is a schematic structural diagram of the internal and external positioning components of a fuel vehicle valve durability testing device proposed by the present invention.

[0031] Fig.10 for Fig. 9 Schematic diagram of the plan structure.

[0032] In the figure: 1, test table; 2, lifting rod; 3, top frame; 4, test assembly; 401, annular limit rail; 402, iron plate; 403, electromagnet; 404, follow-up slide; 405, motor frame; 406, rotating connecting rod; 407, rotating slider; 408, mounting rod; 409, reset frame; 410, driving motor; 411, driving shaft; 412, sliding pressure plate; 413, fixed block; 414, middle connecting block; 415, reset spring rod; 416, annular limit plate; 5, hydraulic cylinder one; 6, mounting groove; 7, vertical plate; 8, inner and outer positioning assembly; 801, embedded column; 802, outer pressure plate; 803, annular frame; 804, matching pressure plate; 805, hydraulic cylinder two; 806 , deflection axis; 807, extrusion spring rod; 808, shaft plate; 809, rear support ring; 810, inner support plate; 9, test point docking assembly; 901, enclosing frame; 902, inner connecting piece; 903, hydraulic cylinder three; 904, fixing plate; 905, pressing column; 906, local adjustment rail; 907, surrounding airbag; 908, pump frame; 909, air pump; 910, air guide tube; 911, pressing plate; 912, electric telescopic rod one; 913, air valve; 914, exhaust pipe; 915, adjusting slider; 916, connecting frame; 917, electric telescopic rod two; 918, end frame; 919, electric telescopic rod three; 920, end block; 921, lifting slot; 922, lifting slider. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] In the present invention, reference is made to Figure 1-Figure 10A fuel vehicle valve durability test device comprises a test bench 1, wherein the top four corners of the test bench 1 are fixedly connected with lifting rods 2, and the tops of the four lifting rods 2 are fixedly connected with the same top frame 3, and a test assembly 4 is arranged at the bottom of the top frame 3, and the test assembly 4 comprises an annular limiting rail 401, and the annular limiting rail 401 is fixedly connected to the bottom of the top frame 3, and the inner sliding connection of the annular limiting rail 401 is connected with two follow-up slides 404, and the two follow-up slides 404 are fixedly connected with the same motor frame 405, and the top of the motor frame 405 is provided with a fixing groove, and the inner fixing groove is fixedly connected with a driving motor 410, and the top of the driving motor 410 is fixedly connected with an iron plate 402, and the bottom of the top frame 3 located above the iron plate 402 is fixedly connected with an electromagnet 403, and the electromagnet 403 is in contact with the iron plate 402, and the outer wall of the annular limiting rail 401 is fixedly connected with two mounting rods 408, and the ends of the two mounting rods 408 are fixedly connected with the same A reset frame 409, the output shaft of the driving motor 410 is fixedly connected to the driving shaft 411 through a coupling, and the outer wall of the driving shaft 411 is fixedly connected to the rotating connecting rod 406, the top of the reset frame 409 is fixedly connected to the annular limiting plate 416, and the annular limiting plate 416 is provided with a limiting slide groove, the inner sliding connection of the limiting slide groove is slidably connected to the rotating slider 407, the rotating slider 407 is fixedly connected to the outer wall of the rotating connecting rod 406, the bottom of the rotating slider 407 is fixedly connected to the sliding pressure plate 412, a plurality of reset spring rods 415 are placed inside the reset frame 409, the same middle connecting block 414 is fixedly connected between each adjacent two reset spring rods 415, one end of one of the reset spring rods 415 is fixedly connected to one side of the sliding pressure plate 412, and the bottom inner wall of the reset frame 409 close to the sliding pressure plate 412 is fixedly connected to a fixed block 413, and the fixed block 413 is fixedly connected to one end of one of the reset spring rods 415.

[0035] In a specific application scenario, when conducting a valve durability test, after the valve is positioned and docked through the internal and external positioning components 8 and the test point docking components 9, during a single test, the drive motor 410 is started to drive the rotating connecting rod 406 to rotate, thereby driving the valve below it to open. After the drive motor 410 drives the valve to rotate 180°, the drive motor 410 stops running, and the electromagnet 403 above the drive motor 410 is powered off. The electromagnet 403 and the iron plate 402 are in contact and not adsorbed, and the reset frame 409 is located inside. Each reset spring rod 415 drives the rotating connecting rod 406 to reset 180°. During the reset process, the valve is closed. At the same time, the follower slide 404 rotates in the annular limit rail 401, and the drive motor 410 is driven to rotate. Repeating the operation can achieve repeated opening and closing of the valve to complete the durability test. During the test, the drive motor 410 always rotates in one direction to avoid damage caused by excessive directional adjustment, thereby ensuring the integrity of the equipment during the test, thereby ensuring that the test process can be completed smoothly and the accuracy of the test results is guaranteed.

[0036] It should be noted that a plurality of reset spring rods 415 cooperate with each other in the reset frame 409 to achieve the reset effect, and the structure required to achieve the reset effect is differentiated to ensure that when one of the reset spring rods 415 is damaged, the other reset spring rods 415 can still achieve the reset and closure of the valve, thereby ensuring that the durability test can continue.

[0037] Please refer to Figure 1 , Figure 3 , Figure 6 , Figure 7 and Figure 8In a preferred embodiment, a test point docking assembly 9 is provided below the test assembly 4, and the test point docking assembly 9 includes an enclosing frame 901, a fixed plate 904 is fixedly connected to the bottom of the rotating connecting rod 406, a hydraulic cylinder 3 903 is fixedly connected to the bottom of the fixed plate 904, an output end of the hydraulic cylinder 3 903 is fixedly connected to the top of the enclosing frame 901, two inner connecting pieces 902 are fixedly connected to the inner side wall of the enclosing frame 901, and the opposite side of the two inner connecting pieces 902 is fixedly connected to the same enclosing airbag 907, and the enclosing airbag 907 is fixedly connected to the inner side wall of the enclosing frame 901. An exhaust hole is opened on the outer wall, and an exhaust pipe 914 is fixedly connected to the inside of the exhaust hole. The outer wall of the exhaust pipe 914 is connected to an air valve 913 through a flange. A pump rack 908 is fixedly connected to the inner wall of the enclosing frame 901, and an air pump 909 is fixedly connected to the bottom of the pump rack 908. An air delivery end of the air pump 909 is fixedly connected to an air guide pipe 910, and one end of the air guide pipe 910 is plugged into the inside of the enclosing air bag 907. Two local adjustment rails 906 are fixedly connected to the inner wall of the enclosing frame 901, and the two local adjustment rails 906 are centered at the center of the enclosing frame 901. The two local adjustment rails 906 are symmetrically distributed, and the insides of the two local adjustment rails 906 are slidably connected with adjustment sliders 915. The outer walls of the two adjustment sliders 915 are fixedly connected with a connecting frame 916. The ends of the local adjustment rails 906 are fixedly connected with end blocks 920. The side of the end block 920 facing the connecting frame 916 is connected to the electric telescopic rod 1 912 through a hinge. The output end of the electric telescopic rod 1 912 is connected to one side of the connecting frame 916 through a hinge. The one side of the connecting frame 916 is fixedly connected with the electric telescopic rod 2 917, and the output end of the electric telescopic rod 2 917 is connected to the one side of the connecting frame 916. A pressing column 905 is fixedly connected to the output end, and a lifting groove 921 is opened on the outer wall of the pressing column 905 away from the connecting frame 916. Two lifting sliders 922 are slidably connected inside the lifting groove 921. The top and bottom of the pressing column 905 are fixedly connected to the end frame 918, and the side of the end frame 918 facing the adjacent lifting slider 922 is fixedly connected to the electric telescopic rod three 919. The output end of the electric telescopic rod three 919 is fixedly connected to the outer wall of the adjacent lifting slider 922, and a pressing plate 911 is fixedly connected to one side of the lifting slider 922.

[0038] Specifically, before rotating the opening and closing turntable above the valve, adjust the hydraulic cylinder three 903 to drive the enclosing frame 901 to move to the periphery of the turntable. When the enclosing frame 901 encloses the turntable, the enclosing airbag 907 contacts and squeezes the outside of the turntable, and the initial limitation of the turntable is achieved by the enclosing airbag 907. Then adjust the electric telescopic rod one 912 to drive the two pressing columns 905 to move to the recessed part on the outside of the turntable. Then adjust the electric telescopic rod two 917 to drive the pressing columns 905 to press into the recess, so that the enclosing airbag 907 and the turntable fit tightly. At the same time, adjust the telescopic rod three to drive the upper and lower pressing plates 911 to press and limit the upper and lower ends of the turntable, to ensure that the turntable is tightly docked with the test point docking assembly 9, thereby improving its stability during the test.

[0039] It should be noted that the surrounding airbag 907 is squeezed by the pressing column 905 so that the surrounding airbag 907 is in close contact with the groove of the turntable. The surrounding airbag 907 achieves an intermediate connection effect to avoid direct contact between the pressing column 905 and the outside of the turntable. During the valve durability test, the valve turntable needs to rotate thousands of times. After the pressing column 905 is in direct contact with the turntable and rotates synchronously for many times, there is mutual friction between the two, which can easily cause damage to the turntable. Here, the surrounding airbag 907 is used for buffering to achieve a protective effect and avoid damage to the turntable and the pressing column 905.

[0040] Please refer to Figure 1 , Figure 2 , Fig. 9 and Fig.10 In a preferred embodiment, both ends of the top of the test bench 1 are provided with mounting grooves 6, and the bottom inner walls of the two mounting grooves 6 are fixedly connected with vertical plates 7, one side of the two vertical plates 7 is fixedly connected with a hydraulic cylinder 5, and the output ends of the two hydraulic cylinders 5 are provided with internal and external positioning components 8, and the internal and external positioning components 8 include embedded columns 801, and the embedded columns 801 are fixedly connected to the output ends of the hydraulic cylinders 5, and the embedded columns 801 are equidistant from the outer side walls of the hydraulic cylinders 5 and connected with inner support plates 810 through hinges, and the outer side walls of the embedded columns 801 are fixedly connected with rear abutment rings 809, and the rear abutment rings 809 are evenly facing the outer side walls of each inner support plate 810. An extrusion spring rod 807 is fixedly connected at a distance, one end of the extrusion spring rod 807 is fixedly connected to the outer wall of the adjacent inner support plate 810, each inner support plate 810 is fixedly connected with an axis plate 808 on both sides, and the opposite sides of the two axis plates 808 located on the same inner support plate 810 are fixedly connected with the same deflection axis 806, the outer wall of the deflection axis 806 is sleeved with an outer pressure plate 802, the outer wall of the embedded column 801 is fixedly connected with an annular frame 803, the side of the annular frame 803 facing each outer pressure plate 802 is fixedly connected with a hydraulic cylinder 805, and the output end of each hydraulic cylinder 805 is fixedly connected with a mating pressure plate 804.

[0041] A fuel vehicle valve durability testing method, using the fuel vehicle valve durability testing device as described above, comprises the following steps:

[0042] Step 1: When positioning the valve, place the valve in the two inner and outer positioning components 8, adjust the hydraulic cylinder 1 5 to drive the embedded column 801 to move toward the inside of the valve. During the movement, the inner support plate 810 contacts and squeezes the inner wall of the valve, and the squeezing spring rod 807 is compressed. The squeezing spring rod 807 drives the inner support plate 810 to achieve the positioning of the inner wall of the valve. Then adjust the hydraulic cylinder 2 805 to drive the fitting pressure plate 804 to squeeze the outer pressure plate 802, so that the outer pressure plate 802 is deflected and fits the outer wall of the valve, thereby completing the inner and outer positioning of the valve;

[0043] Step 2: Adjust the hydraulic cylinder 3 903 to drive the enclosing frame 901 to move to the periphery of the turntable. When the enclosing frame 901 encloses the turntable, the enclosing airbag 907 contacts and squeezes the outer side of the turntable. The initial limitation of the turntable is achieved by the enclosing airbag 907. Then adjust the electric telescopic rod 1 912 to drive the two pressing columns 905 to move to the concave part of the outer side of the turntable. Then adjust the electric telescopic rod 2 917 to drive the pressing columns 905 to press into the groove. At the same time, adjust the telescopic rod 3 to drive the upper and lower pressing plates 911 to press and limit the upper and lower ends of the turntable.

[0044] Step 3: After the valve positioning and docking is completed, the drive motor 410 is started to drive the rotating connecting rod 406 to rotate, thereby driving the valve below it to open. After the drive motor 410 drives the valve to rotate 180°, the drive motor 410 stops running, and the electromagnet 403 above the drive motor 410 is powered off. The electromagnet 403 and the iron plate 402 are in contact and not adsorbed, and the reset spring rods 415 located inside the reset frame 409 drive the rotating connecting rod 406 to reset 180°. During the reset process, the valve is closed, and the drive motor 410 is started again. The above operation is repeated until the valve durability test is completed.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fuel vehicle valve durability testing device, comprising a testing platform (1), It is characterized in that The four corners of the top of the detection platform (1) are fixedly connected to lifting rods (2), and the tops of the four lifting rods (2) are fixedly connected to the same top frame (3), and the bottom of the top frame (3) is provided with a test assembly (4), and the test assembly (4) includes an annular limit rail (401), and the annular limit rail (401) is fixedly connected to the bottom of the top frame (3), and the inside of the annular limit rail (401) is slidably connected to two follow-up slides (404), and the two follow-up slides (404) are fixedly connected to the same motor frame (405), and the top of the motor frame (405) is provided with a fixed groove, and the inside of the fixed groove is fixedly connected to a driving motor (410), the top of the driving motor (410) is fixedly connected to an iron plate (402), the bottom of the top frame (3) located above the iron plate (402) is fixedly connected to an electromagnet (403), the electromagnet (403) and the iron plate (402) are in contact, the outer side wall of the annular limit rail (401) is fixedly connected to two mounting rods (408), and the ends of the two mounting rods (408) are fixedly connected to the same reset frame (409), the output shaft of the driving motor (410) is fixedly connected to a driving shaft (411) through a coupling, and the outer side wall of the driving shaft (411) is fixedly connected to a rotating connecting rod (406).

2. A fuel vehicle valve durability testing device according to claim 1, It is characterized in that The top of the reset frame (409) is fixedly connected with an annular limiting plate (416), and a limiting sliding groove is formed on the annular limiting plate (416), and a rotating slider (407) is slidably connected inside the limiting sliding groove, and the rotating slider (407) is fixedly connected to the outer wall of the rotating connecting rod (406), and the bottom of the rotating slider (407) is fixedly connected with a sliding pressure plate (412), and a plurality of reset spring rods (415) are placed inside the reset frame (409), and a same middle connecting block (414) is fixedly connected between each two adjacent reset spring rods (415), and one end of one of the reset spring rods (415) is fixedly connected to one side of the sliding pressure plate (412), and a fixed block (413) is fixedly connected to the bottom inner wall of the reset frame (409) near the sliding pressure plate (412), and the fixed block (413) is fixedly connected to one end of one of the reset spring rods (415).

3. A fuel vehicle valve durability testing device according to claim 2, It is characterized in that A test point docking assembly (9) is provided below the test assembly (4), and the test point docking assembly (9) comprises an enclosing frame (901), a fixed plate (904) is fixedly connected to the bottom of the rotating connecting rod (406), a hydraulic cylinder three (903) is fixedly connected to the bottom of the fixed plate (904), and an output end of the hydraulic cylinder three (903) is fixedly connected to the top of the enclosing frame (901).

4. A fuel vehicle valve durability testing device according to claim 3, It is characterized in that The inner side wall of the enclosing frame (901) is fixedly connected to two inner connecting pieces (902), and the opposite sides of the two inner connecting pieces (902) are fixedly connected to the same enclosing air bag (907), the outer side wall of the enclosing air bag (907) is provided with an exhaust hole, the inside of the exhaust hole is fixedly connected to an exhaust pipe (914), the outer side wall of the exhaust pipe (914) is connected to an air valve (913) via a flange, the inner side wall of the enclosing frame (901) is fixedly connected to a pump frame (908), the bottom of the pump frame (908) is fixedly connected to an air pump (909), the air delivery end of the air pump (909) is fixedly connected to an air guide pipe (910), and one end of the air guide pipe (910) is plugged into the inside of the enclosing air bag (907).

5. A fuel vehicle valve durability testing device according to claim 4, It is characterized in that The inner side wall of the enclosing frame (901) is fixedly connected to two local adjustment rails (906), and the two local adjustment rails (906) are symmetrically distributed around the center point of the enclosing frame (901); the insides of the two local adjustment rails (906) are slidably connected to adjustment sliders (915); the outer side walls of the two adjustment sliders (915) are fixedly connected to a connecting frame (916); the ends of the local adjustment rails (906) are fixedly connected to end blocks (920); a side of the end block (920) facing the connecting frame (916) is connected to an electric telescopic rod (912) through a hinge; and an output end of the electric telescopic rod (912) is connected to one side of the connecting frame (916) through a hinge.

6. A fuel vehicle valve durability testing device according to claim 5, It is characterized in that One side of the connecting frame (916) is fixedly connected to the second electric telescopic rod (917), and the output end of the second electric telescopic rod (917) is fixedly connected to the pressing column (905), and the outer wall of the pressing column (905) away from the connecting frame (916) is provided with a lifting groove (921), and two lifting sliders (922) are slidably connected inside the lifting groove (921), and the top and bottom of the pressing column (905) are fixedly connected to the end frame (918), and the side of the end frame (918) facing the adjacent lifting slider (922) is fixedly connected to the third electric telescopic rod (919), and the output end of the third electric telescopic rod (919) is fixedly connected to the outer wall of the adjacent lifting slider (922), and one side of the lifting slider (922) is fixedly connected to the pressing plate (911).

7. A fuel vehicle valve durability testing device according to claim 6, It is characterized in that The top ends of the detection platform (1) are provided with mounting grooves (6), and the bottom inner walls of the two mounting grooves (6) are fixedly connected with vertical plates (7), one side of the two vertical plates (7) is fixedly connected with hydraulic cylinders (5), and the output ends of the two hydraulic cylinders (5) are provided with internal and external positioning components (8).

8. A fuel vehicle valve durability testing device according to claim 7, It is characterized in that The inner and outer positioning assembly (8) comprises an embedded column (801), and the embedded column (801) is fixedly connected to the output end of the hydraulic cylinder (5); the embedded column (801) is connected to an inner support plate (810) at an equal distance from the outer wall of the hydraulic cylinder (5) through a hinge; the outer wall of the embedded column (801) is fixedly connected to a rear abutment ring (809); the rear abutment ring (809) is fixedly connected to the outer wall of each inner support plate (810) at an equal distance; one end of the extrusion spring rod (807) is fixedly connected to the outer wall of the adjacent inner support plate (810).

9. A fuel vehicle valve durability testing device according to claim 8, It is characterized in that Both sides of each inner support plate (810) are fixedly connected with an axis plate (808), and the opposite sides of the two axis plates (808) on the same inner support plate (810) are fixedly connected with the same deflection axis (806), the outer wall of the deflection axis (806) is sleeved with an outer pressure plate (802), the outer wall of the embedded column (801) is fixedly connected with an annular frame (803), and the side of the annular frame (803) facing each outer pressure plate (802) is fixedly connected with a hydraulic cylinder 2 (805), and the output end of each hydraulic cylinder 2 (805) is fixedly connected with a mating pressure plate (804).

10. A fuel vehicle valve durability testing method, using a fuel vehicle valve durability testing device as claimed in claim 9, It is characterized in that The following steps are involved: Step 1: When positioning the valve, place the valve between the two inner and outer positioning components (8), adjust the hydraulic cylinder 1 (5) to drive the embedded column (801) to move toward the inside of the valve. During the movement, the inner support plate (810) contacts and squeezes the inner wall of the valve, and the squeezing spring rod (807) is compressed. The squeezing spring rod (807) drives the inner support plate (810) to achieve the positioning of the inner wall of the valve. Then, adjust the hydraulic cylinder 2 (805) to drive the fitting pressure plate (804) to squeeze the outer pressure plate (802), so that the outer pressure plate (802) is deflected and fits the outer wall of the valve, thereby completing the inner and outer positioning of the valve; Step 2: Adjust the hydraulic cylinder 3 (903) to drive the enclosing frame (901) to move to the periphery of the turntable. When the enclosing frame (901) encloses the turntable, the enclosing airbag (907) contacts and squeezes the outer side of the turntable. The turntable is initially limited by the enclosing airbag (907). Then, adjust the electric telescopic rod 1 (912) to drive the two pressing columns (905) to move to the concave part of the outer side of the turntable. Then, adjust the electric telescopic rod 2 (917) to drive the pressing columns (905) to press into the concave part. At the same time, adjust the telescopic rod 3 to drive the upper and lower pressing plates (911) to press and limit the upper and lower ends of the turntable. Step 3: After the valve positioning and docking are completed, the drive motor (410) is started to drive the rotating connecting rod (406) to rotate, thereby driving the valve below it to open. After the drive motor (410) drives the valve to rotate 180°, the drive motor (410) stops running, and the electromagnet (403) above the drive motor (410) is powered off. The electromagnet (403) and the iron plate (402) are in contact and not adsorbed. Then, each reset spring rod (415) located inside the reset frame (409) drives the rotating connecting rod (406) to reset 180°. During the reset process, the valve is closed, and the drive motor (410) is started again. The above operation is repeated until the valve durability test is completed.

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