Plug-in hybrid vehicle valve durability test apparatus

Abstract

The application discloses a kind of plug-in hybrid drive's automobile valve durability test equipment, it is related to automobile valve durability test technical field, including operating room and valve head, the bottom inner wall of the operating room is fixedly connected with grounding seat.The plug-in hybrid drive's automobile valve durability test equipment disclosed in the application has when carrying out valve head high temperature test, install the semicircular ceramic sleeve on fixed arc plate in the periphery of valve guide pipe, connect by lock bolt, so that the heat derived from positioning pressure head is cut off, reduce valve head heat loss, to improve the accuracy of high temperature test result, at the same time, when the positioning of valve head is carried out, adjusting hydraulic cylinder one drives each positioning pressure head to extrude it, cooperate with pressing plate from back and positioning pressure head cooperation, improve the firmness of valve head clamping, single-point clamping of positioning pressure head, reduce contact area, further avoid the effect of heat export on valve head.

Description

Technical Field

[0001] This invention relates to the field of automotive valve durability testing technology, and more particularly to a plug-in hybrid-driven automotive valve durability testing device. Background Technology

[0002] After manufacturing, plug-in hybrid vehicle valves need to undergo durability testing. During high-load operation, the valve head will rapidly heat up to over 800 degrees Celsius and then drop to around 50 degrees Celsius. Therefore, the valve head needs to undergo alternating hot and cold testing to determine its resistance to thermal fatigue.

[0003] In existing plug-in hybrid-driven automotive valve durability testing equipment, the heat generated during rapid heating of the valve head via the heating device is transferred along the clamping mechanism to the valve guide at the rear. This heat dissipation affects the accuracy and efficiency of the test, reducing the value of the durability testing equipment. Summary of the Invention

[0004] This invention discloses a plug-in hybrid-driven automotive valve durability testing device, which aims to solve the technical problem that in the existing plug-in hybrid-driven automotive valve durability testing devices, after the valve head is rapidly heated by the heating device, the heat is transferred along the clamping mechanism to the valve guide at the rear, and the heat dissipation will affect the accuracy and efficiency of the test.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A plug-in hybrid-driven automotive valve durability testing device includes an operating chamber and a valve head. A grounding base is fixedly connected to the bottom inner wall of the operating chamber, and an operating ring frame is fixedly connected to the grounding base. The operating ring frame is equipped with a heat insulation mechanism, which includes two fixed arc plates. Multiple layers of semi-circular ceramic sleeves are provided on the inner ring surface of each fixed arc plate. Connecting rods are fixedly connected at equal intervals on the outer arc surface of each fixed arc plate. A positioning rail is fixedly connected to the side of each connecting rod facing the valve head. A positioning slider is slidably connected to the positioning rail. An integrated plate is fixedly connected to the side of the positioning slider facing the valve head. Positioning pressure heads are fixedly connected at equal intervals to the side of the integrated plate facing the valve head, and these pressure heads contact the valve head. A valve guide is provided on the outer wall of the valve head, located between multiple semi-circular ceramic sleeves. Fixed rods are fixedly connected to both sides of the positioning rail near the positioning pressure heads. The ends of the two fixed rods are fixedly connected to the same mating pressure plate. A hydraulic cylinder is fixedly connected to the positioning rail, and the output end of the hydraulic cylinder is fixedly connected to one side of the positioning slider.

[0007] In a preferred embodiment, the plurality of semi-circular ceramic sleeves are fitted with the same heat insulation ring cover, and a water frame is fixedly connected to one inner wall of the heat insulation ring cover. The water frame has two connection holes, and a connecting water pipe is fixedly connected inside each of the two connection holes. Two pipe sleeves are fixedly connected to the operating ring frame away from the valve head, and the ends of the connecting water pipes are fixedly connected to the inside of the adjacent pipe sleeves.

[0008] In a preferred embodiment, the heat insulation ring cover has a mating rod fixedly connected to one of the two connecting rods on its side, and both connecting rods have mating holes. Multiple sets of compression spring rods are distributed in a ring inside the mating holes. The end of each set of compression spring rods is fixedly connected to the same mating pressure plate. The mating rod passes through the multiple mating pressure plates and fits tightly with the mating pressure plates. External rods are fixedly connected to the connection points of the two fixed arc plates. Each external rod has a threaded hole, and the same locking bolt is screwed into the interior of each pair of corresponding threaded holes. A locking nut is screwed into the end of the locking bolt.

[0009] In a preferred embodiment, a guide rail is fixedly connected to the inner arc surface at the bottom of the operating ring frame, and a sliding block is slidably connected inside the guide rail. Side frames are fixedly connected to both sides of the sliding block near the top, and hydraulic cylinders are fixedly connected to opposite sides of the two side frames. Fixed pressure plates are fixedly connected to the output ends of the two hydraulic cylinders, and the fixed pressure plates are in contact with the connecting rod located below.

[0010] In a preferred embodiment, a connecting slide rod is fixedly connected to one side of the sliding block, and the connecting slide rod is slidably connected to the inside of the guide rail. A push rod is fixedly connected to the top of the connecting slide rod away from the sliding block. An end plate is fixedly connected to one side of the operating ring frame, and a push cylinder is fixedly connected to the side of the end plate facing the push rod. The output end of the push cylinder is fixedly connected to one side of the push rod.

[0011] In a preferred embodiment, the operating ring frame has a fixing hole on the upper arc surface, and a connecting sleeve frame is fixedly connected inside the fixing hole. The connecting sleeve frame is equipped with a cooling spraying mechanism, which includes two lifting guide rails, which are fixedly connected to the inner walls on both sides of the connecting sleeve frame.

[0012] In a preferred embodiment, lifting slide rods are slidably connected to both lifting guide rails, and external plates are fixedly connected to the opposite sides of the two lifting slide rods. The same lifting ring frame is fixedly connected to the opposite sides of the two external plates. Lifting frames are fixedly connected to both sides of the connecting frame, and lifting cylinders are fixedly connected to the two lifting frames. The output end of the lifting cylinder is fixedly connected to the top of the adjacent external plate.

[0013] In a preferred embodiment, a storage frame is fixedly connected to one side of the lifting ring frame, and the storage frame is filled with coolant. A shaft hole is opened on the side of the lifting ring frame located at the center point of the storage frame. A hollow rotating shaft is connected to the inside of the shaft hole through a bearing. A spray plate is fixedly connected to the outer wall of the hollow rotating shaft inside the lifting ring frame. A spray hole is opened on the side of the spray plate away from the storage frame. A delivery pump is fixedly connected to the inner ring surface of the storage frame. A coolant delivery pipe is fixedly connected to the delivery end of the delivery pump. One end of the coolant delivery pipe is connected to the inside of the hollow rotating shaft through a bearing. The extraction end of the delivery pump is connected to the inside of the storage frame through a pipe. A feeding hole is opened on the outer wall of the storage frame facing upward. A feeding pipe is fixedly connected to the inside of the feeding hole. A pipe cap is screwed onto the feeding pipe.

[0014] In a preferred embodiment, a rotating frame is fixedly connected to the outer wall of the hollow rotating shaft, and hydraulic cylinders are fixedly connected at equal intervals on the rotating frame. Each hydraulic cylinder is fixedly connected to a brush plate at its output end, and each brush plate is equipped with a cleaning brush. A telescopic link is fixedly connected to the side of the brush plate facing the rotating frame, and one end of the telescopic link is fixedly connected to the rotating frame. A motor frame is fixedly connected to the side of the lifting ring frame near the hollow rotating shaft, and a drive motor is fixedly connected to the motor frame. The output shaft of the drive motor is fixedly connected to a driving gear through a coupling, and a driven gear is fixedly connected to the outer wall of the hollow rotating shaft. The driving gear and the driven gear mesh with each other.

[0015] In a preferred embodiment, the operating chamber has door openings on both sides, and the inner walls of both door openings are connected to chamber doors via hinges. The operating chamber has an observation window, and a fixed base is fixedly connected to the bottom inner wall of the operating chamber near the valve head. A high-frequency induction coil is provided on the fixed base.

[0016] This invention provides a plug-in hybrid-driven automotive valve durability testing device. During high-temperature testing of valve heads, a semi-circular ceramic sleeve on a fixed arc plate is installed around the valve guide and connected by locking bolts. This isolates the heat dissipated from the positioning pressure head, reducing heat loss from the valve head and improving the accuracy of the high-temperature test results. Simultaneously, during valve head positioning, a hydraulic cylinder is adjusted to drive each positioning pressure head to compress it. A pressure plate engages with the positioning pressure head from the back, improving the valve head clamping stability. The single-point clamping of the positioning pressure head reduces the contact area, further preventing heat dissipation from the valve head. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a plug-in hybrid-driven automotive valve durability testing device proposed in this invention.

[0018] Figure 2This is a schematic diagram of the internal structure of the operating chamber of a plug-in hybrid-driven automotive valve durability testing device proposed in this invention.

[0019] Figure 3 for Figure 2 A side view of the overall structure.

[0020] Figure 4 This is a schematic diagram of the combined structure of the heat insulation mechanism, valve head, guide rail, and connecting water pipe of a plug-in hybrid-driven automotive valve durability testing device proposed in this invention.

[0021] Figure 5 This is a cross-sectional view of the heat insulation ring structure of a plug-in hybrid-driven automotive valve durability testing device proposed in this invention.

[0022] Figure 6 This is a schematic diagram of the combined structure of a semi-circular ceramic sleeve, a fixed arc plate, a positioning rail, and a positioning pressure head of a plug-in hybrid-driven automotive valve durability testing device proposed in this invention.

[0023] Figure 7 This is a schematic diagram of the positioning rail, docking rod, and docking pressure plate combination structure of a plug-in hybrid driven automotive valve durability testing device proposed in this invention.

[0024] Figure 8 This is a schematic diagram of the combined structure of the connecting slide rod, push rod, sliding block, positioning rail, and fixed pressure plate of a plug-in hybrid driven automotive valve durability testing device proposed in this invention.

[0025] Figure 9 This is a schematic diagram of the cooling spraying mechanism of a plug-in hybrid-driven automotive valve durability testing device proposed in this invention.

[0026] Figure 10 for Figure 9 Cross-sectional view of the combined structure of the central lifting ring frame and storage frame.

[0027] Figure 11 for Figure 10 A schematic diagram of the overall structure flipped over.

[0028] In the diagram: 1. Control room; 2. Door; 3. Insulation mechanism; 301. Fixed arc plate; 302. Insulation ring cover; 303. Positioning rail; 304. Integrated plate; 305. Positioning pressure head; 306. Hydraulic cylinder one; 307. Water frame; 308. Connecting rod; 309. Fixed rod; 310. Matching pressure plate; 311. Semi-circular ceramic sleeve; 312. External rod; 313. Connecting rod; 314. Connecting pressure plate; 315. Compression spring rod; 316. Positioning slider; 4. Connecting sleeve frame; 5. Operating ring frame; 6. Pipe sleeve; 7. Observation window; 8. Connecting water pipe; 9. End plate; 10. Grounding seat; 11. Guide rail; 12. Valve head; 13. Fixed seat; 14. High-frequency induction coil; 15. Cooling spraying mechanism; 1501. Lifting frame; 1502. Lifting cylinder ; 1503, Lifting ring frame; 1504, Pipe cover; 1505, Feeding pipe; 1506, Lifting slide bar; 1507, Storage box; 1508, External plate; 1509, Lifting guide rail; 1510, Spraying plate; 1511, Spraying hole; 1512, Conveying pump; 1513, Telescopic connecting rod; 1514, Rotating frame; 1515, Hydraulic cylinder three; 1516, Cleaning brush; 1517, Brush plate; 1518, Coolant conveying pipe; 1519, Motor frame; 1520, Drive motor; 1521, Active rotating gear; 1522, Driven rotating gear; 1523, Hollow rotating shaft; 16, Push cylinder; 17, Valve guide; 18, Push rod; 19, Connecting slide bar; 20, Sliding block; 21, Side frame; 22, Hydraulic cylinder two; 23, Fixed pressure plate. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] The plug-in hybrid-driven automotive valve durability testing equipment disclosed in this invention is mainly applied to scenarios where, during the use of existing plug-in hybrid-driven automotive valve durability testing equipment, the valve head is rapidly heated by a heating device, and the heat is transferred along the clamping mechanism to the valve guide at the rear. The heat dissipation will affect the accuracy and efficiency of the test.

[0031] Reference Figures 1-11A plug-in hybrid-driven automotive valve durability testing device includes an operating chamber 1 and a valve head 12. A grounding base 10 is fixedly connected to the bottom inner wall of the operating chamber 1, and an operating ring frame 5 is fixedly connected to the grounding base 10. A heat insulation mechanism 3 is provided in the operating ring frame 5. The heat insulation mechanism 3 includes two fixed arc plates 301, and multiple layers of semi-circular ceramic sleeves 311 are provided on the inner ring surface of each of the two fixed arc plates 301. Connecting rods 313 are fixedly connected at equal intervals on the outer arc surface of the fixed arc plates 301, and a positioning rail 303 is fixedly connected to the side of each connecting rod 313 facing the valve head 12. A positioning slider 316 is slidably connected to the positioning rail 303. An integrated plate 304 is fixedly connected to the side of valve head 12 facing the valve head 12. Positioning pressure heads 305 are fixedly connected at equal intervals to the side of integrated plate 304 facing the valve head 12. Positioning pressure heads 305 are in contact with valve head 12. Valve guide 17 is provided on the outer wall of valve head 12. Valve guide 17 is located between multiple semi-circular ceramic sleeves 311. Fixing rods 309 are fixedly connected to both sides of positioning rail 303 near positioning pressure heads 305. The ends of the two fixing rods 309 are fixedly connected to the same mating pressure plate 310. Hydraulic cylinder 306 is fixedly connected to positioning rail 303. The output end of hydraulic cylinder 306 is fixedly connected to one side of positioning slider 316.

[0032] In specific application scenarios, when conducting high-temperature tests on the valve head 12, the semi-circular ceramic sleeve 311 on the fixed arc plate 301 is installed around the valve guide 17 and connected by locking bolts and locking nuts. This isolates the heat conducted from the positioning head 305, reduces heat loss of the valve head 12, and improves the accuracy of the high-temperature test results. At the same time, when positioning the valve head 12, the hydraulic cylinder 306 is adjusted to drive each positioning head 305 to squeeze it. The pressure plate 310 cooperates with the positioning head 305 from the back to improve the firmness of the valve head 12 clamping. The single-point clamping of the positioning head 305 reduces the contact area and further prevents the heat from being conducted from the valve head 12.

[0033] Specifically, after the semi-circular ceramic sleeve 311 is installed, the heat insulation ring cover 302 is fitted onto the outside of the semi-circular ceramic sleeve 311, and the docking rod 308 is pressed into each docking pressure plate 314 to quickly realize the installation of the heat insulation ring cover 302. During the heating process of the valve head 12, the heat insulation ring frame isolates the heat, preventing heat from entering the operating ring frame 5 and causing heat loss, thereby improving the heating efficiency of the valve head 12.

[0034] Reference Figures 1-7In a preferred embodiment, a plurality of semi-circular ceramic sleeves 311 are fitted with the same heat insulation ring cover 302, and a water frame 307 is fixedly connected to one inner wall of the heat insulation ring cover 302. The water frame 307 has two connection holes, and a connecting water pipe 8 is fixedly connected inside each of the two connection holes. Two pipe sleeves 6 are fixedly connected to the operating ring frame 5 away from the valve head 12, and the end of the connecting water pipe 8 is fixedly connected to the inside of the adjacent pipe sleeve 6.

[0035] Reference Figure 6 and Figure 7 In a preferred embodiment, the heat insulation ring cover 302 is fixedly connected to the side of each of the two connecting rods 313 with a docking rod 308, and each of the two connecting rods 313 has a docking hole. The interior of the docking hole is distributed with multiple sets of compression spring rods 315. The end of each set of compression spring rods 315 is fixedly connected to the same docking pressure plate 314. The docking rod 308 passes through the multiple docking pressure plates 314 and fits tightly with the docking pressure plate 314. The connection point of the two fixed arc plates 301 is fixedly connected with an external rod 312. Each external rod 312 has a threaded hole. The interior of each pair of corresponding threaded holes is screwed with the same locking bolt. The end of the locking bolt is screwed with a locking nut.

[0036] Reference Figure 2 and Figure 8 In a preferred embodiment, a guide rail 11 is fixedly connected to the inner arc surface of the operating ring frame 5 at the bottom, and a sliding block 20 is slidably connected inside the guide rail 11. Side frames 21 are fixedly connected to both sides of the sliding block 20 near the top. Hydraulic cylinders 22 are fixedly connected to the opposite side of the two side frames 21. Fixed pressure plates 23 are fixedly connected to the output ends of the two hydraulic cylinders 22. The fixed pressure plates 23 are in contact with the connecting rod 313 located below.

[0037] Reference Figure 8 In a preferred embodiment, a connecting slide rod 19 is fixedly connected to one side of the sliding block 20, and the connecting slide rod 19 is slidably connected to the inside of the guide rail 11. A push rod 18 is fixedly connected to the top of the connecting slide rod 19 away from the sliding block 20. An end plate 9 is fixedly connected to one side of the operating ring frame 5. A push cylinder 16 is fixedly connected to the side of the end plate 9 facing the push rod 18. The output end of the push cylinder 16 is fixedly connected to one side of the push rod 18.

[0038] Reference Figure 2 and Figure 9 In a preferred embodiment, the operating ring frame 5 has a fixing hole on the upper arc surface, and a connecting sleeve frame 4 is fixedly connected inside the fixing hole. The connecting sleeve frame 4 is provided with a cooling spraying mechanism 15, which includes two lifting guide rails 1509, which are fixedly connected to the inner walls on both sides of the connecting sleeve frame 4.

[0039] Reference Figure 9 In a preferred embodiment, lifting slide rods 1506 are slidably connected to both lifting guide rails 1509, and external plates 1508 are fixedly connected to the opposite sides of both lifting slide rods 1506. The same lifting ring frame 1503 is fixedly connected to the opposite sides of both external plates 1508. Lifting frames 1501 are fixedly connected to both sides of the connecting sleeve frame 4, and lifting cylinders 1502 are fixedly connected to both lifting frames 1501. The output end of the lifting cylinder 1502 is fixedly connected to the top of the adjacent external plate 1508.

[0040] Specifically, during the cooling of the valve head 12, the adjusting lifting cylinder 1502 drives the lifting ring frame 1503 to move to the heating point of the valve head 12, and the drive motor 1520 is started. The drive motor 1520 drives the driven rotating gear 1522 to rotate through the active rotating gear 1521, thereby driving the spray plate 1510 on the hollow rotating shaft 1523 to rotate. The delivery pump 1512 is turned on to realize rotational spraying, improve the uniformity of coolant spraying, accelerate the cooling progress of the valve head 12, and improve the efficiency of a single test.

[0041] It should be noted that after the coolant is sprayed, the valve head 12 cools down quickly. Then, the hydraulic cylinder 3 1515 drives the cleaning brush 1516 on the brush plate 1517 to contact the valve head 12. The rotating cleaning brush 1516 brushes off the coolant residue on the valve head 12, avoiding the coolant residue from causing deviations in the next heating, thereby ensuring that each independent high-temperature test meets the standard and improving the accuracy of the test results.

[0042] Reference Figure 10 and Figure 11 In a preferred embodiment, a storage frame 1507 is fixedly connected to one side of the lifting ring frame 1503, and the storage frame 1507 is filled with coolant. A shaft hole is formed on the side of the lifting ring frame 1503 located at the center point of the storage frame 1507. A hollow rotating shaft 1523 is connected to the inside of the shaft hole via a bearing. A spraying plate 1510 is fixedly connected to the outer wall of the hollow rotating shaft 1523 inside the lifting ring frame 1503. A spraying hole 1511 is formed on the side of the spraying plate 1510 away from the storage frame 1507. A delivery pump 1512 is fixedly connected to the inner ring surface of the storage frame 1507. A coolant delivery pipe 1518 is fixedly connected to the delivery end of the delivery pump 1512. One end of the coolant delivery pipe 1518 is connected to the inside of the hollow rotating shaft 1523 through a bearing. The extraction end of the delivery pump 1512 is connected to the inside of the storage frame 1507 through a pipe. A feeding hole is opened on the outer side wall of the storage frame 1507 facing upward. A feeding pipe 1505 is fixedly connected to the inside of the feeding hole. A pipe cap 1504 is screwed onto the feeding pipe 1505.

[0043] Reference Figure 10 and Figure 11 In a preferred embodiment, a rotating frame 1514 is fixedly connected to the outer wall of the hollow rotating shaft 1523, and hydraulic cylinders 1515 are fixedly connected at equal intervals on the rotating frame 1514. Each hydraulic cylinder 1515 has a brush plate 1517 fixedly connected to its output end, and each brush plate 1517 is equipped with a cleaning brush 1516. A telescopic connecting rod 1513 is fixedly connected to the side of the brush plate 1517 facing the rotating frame 1514. One end of 3 is fixedly connected to the rotating frame 1514. The lifting ring frame 1503 is fixedly connected to the side of the hollow rotating shaft 1523 with a motor frame 1519. The motor frame 1519 is fixedly connected to the drive motor 1520. The output shaft of the drive motor 1520 is fixedly connected to the driving gear 1521 through a coupling. The outer wall of the hollow rotating shaft 1523 is fixedly connected to the driven gear 1522. The driving gear 1521 and the driven gear 1522 mesh with each other.

[0044] Reference Figure 1 and Figure 2 In a preferred embodiment, the operating chamber 1 has door openings on both sides, and the inner walls of both door openings are connected to the chamber doors 2 by hinges. The operating chamber 1 has an observation window 7. The bottom inner wall of the operating chamber 1 near the valve head 12 is fixedly connected to a mounting base 13, and a high-frequency induction coil 14 is provided on the mounting base 13.

[0045] Working principle: In use, firstly, the valve head 12 and the heat insulation mechanism 3 are connected. The semi-circular ceramic sleeve 311 on the fixed arc plate 301 is installed around the valve guide 17, and connected by locking bolts and locking nuts. The hydraulic cylinder 306 is adjusted to drive each positioning pressure head 305 to press it. The pressure plate 310 cooperates with the positioning pressure head 305 from the back, and the positioning pressure head 305 clamps the valve head 12. Next, the heat insulation ring cover 302 is sleeved on the outside of the semi-circular ceramic sleeve 311, and the docking rod 308 is pressed into each docking pressure plate 314, quickly completing the connection. The installation of the heat insulation ring 302 involves moving the valve head 12 and the heat insulation mechanism 3 into the operating ring frame 5. The connecting rod 313 located below is placed between the two fixed pressure plates 23. The hydraulic cylinder 22 is adjusted to drive the fixed pressure plates 23 to press the connecting rod 313. The initial installation operation is completed. During high-temperature heating, the push cylinder 16 is adjusted to drive the sliding block 20 to move, thereby quickly moving the valve head 12 between the high-frequency induction coils 14. The high-frequency induction coils 14 are energized, quickly completing the heating treatment of the valve head 12. During the heating treatment, each semi-circular ceramic sleeve 311... The heat discharged from the positioning head 305 is isolated to reduce heat loss of the valve head 12. The heat insulation ring frame isolates the heat to prevent heat from entering the operating ring frame 5 and causing heat loss. After the valve head 12 is heated, the cylinder 16 is pushed to reset it. When the valve head 12 moves to the rear of the connecting sleeve frame 4, the lifting cylinder 1502 is adjusted to move the lifting ring frame 1503 to the heating point of the valve head 12. The drive motor 1520 is started. The drive motor 1520 drives the driven gear 1522 to rotate through the active rotating gear 1521, thereby driving... The spray plate 1510 on the hollow rotating shaft 1523 rotates, and the delivery pump 1512 is turned on to realize rotational spraying, which improves the uniformity of coolant spraying. After the valve head 12 is cooled, the hydraulic cylinder 1515 is adjusted to drive the cleaning brush 1516 on the brush plate 1517 to contact the valve head 12. The rotating cleaning brush 1516 brushes off the residual coolant on the valve head 12 to avoid the residual coolant causing deviation in the next heating. After a single test is completed, the operation is repeated thousands of times. The valve head 12 is removed and various checks are performed on it. Then the test continues.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A plug-in hybrid-driven automotive valve durability testing device, comprising an operating chamber (1) and a valve head (12), characterized in that, A grounding base (10) is fixedly connected to the bottom inner wall of the operating chamber (1), and an operating ring frame (5) is fixedly connected to the grounding base (10). A heat insulation mechanism (3) is provided in the operating ring frame (5). The heat insulation mechanism (3) includes two fixed arc plates (301), and multiple layers of semi-circular ceramic sleeves (311) are provided on the inner ring surface of the two fixed arc plates (301). Connecting rods (313) are fixedly connected at equal intervals on the outer arc surface of the fixed arc plates (301), and a positioning rail (303) is fixedly connected to the side of each connecting rod (313) facing the valve head (12). A positioning slider (316) is slidably connected to the positioning rail (303), and the side of the positioning slider (316) facing the valve head (12) is fixedly connected. An integrated plate (304) is connected, and a positioning pressure head (305) is fixedly connected at equal distances on the side of the integrated plate (304) facing the valve head (12). The positioning pressure head (305) is in contact with the valve head (12). A valve guide (17) is provided on the outer wall of the valve head (12). The valve guide (17) is located between multiple semi-circular ceramic sleeves (311). A fixing rod (309) is fixedly connected on both sides of the positioning rail (303) near the positioning pressure head (305). The ends of the two fixing rods (309) are fixedly connected to the same mating pressure plate (310). A hydraulic cylinder (306) is fixedly connected on the positioning rail (303). The output end of the hydraulic cylinder (306) is fixedly connected to one side of the positioning slider (316). Multiple semi-circular ceramic sleeves (311) are covered with the same heat insulation ring cover (302), and a water frame (307) is fixedly connected to one side of the inner wall of the heat insulation ring cover (302). Two connection holes are opened on the water frame (307), and a connecting water pipe (8) is fixedly connected inside the two connection holes. Two pipe sleeves (6) are fixedly connected to the operating ring frame (5) away from the valve head (12), and the end of the connecting water pipe (8) is fixedly connected to the inside of the adjacent pipe sleeve (6). The heat insulation ring cover (302) is fixedly connected to the two connecting rods (313) on one side, and the two connecting rods (313) are provided with docking holes. Multiple sets of compression spring rods (315) are distributed in a ring inside the docking holes. The end of each set of compression spring rods (315) is fixedly connected to the same docking pressure plate (314). The docking rod (308) passes through the multiple docking pressure plates (314) and the docking rod (308) fits tightly with the docking pressure plate (314). The connection of the two fixed arc plates (301) is fixedly connected to the external rod (312). Each external rod (312) is provided with a threaded hole. The same locking bolt is screwed into the interior of each pair of corresponding threaded holes. The end of the locking bolt is screwed with a locking nut. The operating ring frame (5) is fixedly connected to the guide rail (11) on the inner arc surface at the bottom end, and the guide rail (11) is slidably connected to the sliding block (20). The sliding block (20) is fixedly connected to the side frame (21) on both sides near the top. The two side frames (21) are fixedly connected to the opposite side of the two hydraulic cylinders (22). The output end of the two hydraulic cylinders (22) is fixedly connected to the fixed pressure plate (23). The fixed pressure plate (23) is in contact with the connecting rod (313) located below. In use, first connect the valve head (12) and the heat insulation mechanism (3), install the semi-circular ceramic sleeve (311) on the fixed arc plate (301) around the valve guide (17), and connect them by locking bolts and locking nuts. Adjust the hydraulic cylinder (306) to drive each positioning head (305) to squeeze it, and cooperate with the pressure plate (310) to cooperate with the positioning head (305) from the back. The positioning head (305) clamps the valve head (12). Next, the heat insulation ring cover (302) is fitted onto the outside of the semi-circular ceramic sleeve (311), and the docking rod (308) is pressed into each docking pressure plate (314) to realize the installation of the heat insulation ring cover (302). The valve head (12) and the heat insulation mechanism (3) are moved into the operating ring frame (5), and the connecting rod (313) located below is placed between the two fixed pressure plates (23). The hydraulic cylinder two (22) is adjusted to drive the fixed pressure plate (23) to squeeze the connecting rod (313).

2. The plug-in hybrid-driven automotive valve durability testing device according to claim 1, characterized in that, A connecting slide rod (19) is fixedly connected to one side of the sliding block (20), and the connecting slide rod (19) is slidably connected to the inside of the guide rail (11). A push rod (18) is fixedly connected to the top of the connecting slide rod (19) away from the sliding block (20). An end plate (9) is fixedly connected to one side of the operating ring frame (5). A push cylinder (16) is fixedly connected to the side of the end plate (9) facing the push rod (18). The output end of the push cylinder (16) is fixedly connected to one side of the push rod (18).

3. The plug-in hybrid-driven automotive valve durability testing device according to claim 1, characterized in that, The operating ring frame (5) has a fixing hole on the upper arc surface, and a connecting sleeve frame (4) is fixedly connected inside the fixing hole. The connecting sleeve frame (4) is provided with a cooling spraying mechanism (15). The cooling spraying mechanism (15) includes two lifting guide rails (1509), which are fixedly connected to the inner walls on both sides of the connecting sleeve frame (4).

4. The plug-in hybrid-driven automotive valve durability testing device according to claim 3, characterized in that, Lifting slide rods (1506) are slidably connected to both of the lifting guide rails (1509), and external plates (1508) are fixedly connected to the opposite side of the two lifting slide rods (1506). The same lifting ring frame (1503) is fixedly connected to the opposite side of the two external plates (1508). Lifting frames (1501) are fixedly connected to both sides of the connecting sleeve frame (4), and lifting cylinders (1502) are fixedly connected to both lifting frames (1501). The output end of the lifting cylinder (1502) is fixedly connected to the top of the adjacent external plate (1508).

5. The plug-in hybrid-driven automotive valve durability testing device according to claim 4, characterized in that, A storage frame (1507) is fixedly connected to one side of the lifting ring frame (1503), and the storage frame (1507) is filled with coolant. A shaft hole is opened on one side of the lifting ring frame (1503) at the center point of the storage frame (1507). A hollow rotating shaft (1523) is connected to the inside of the shaft hole via a bearing. A spraying plate (1510) is fixedly connected to the outer wall of the hollow rotating shaft (1523) inside the lifting ring frame (1503). A spraying hole (1511) is opened on the side of the spraying plate (1510) away from the storage frame (1507). A delivery pump (1512) is fixedly connected to the inner ring surface of the storage frame (1507). A coolant delivery pipe (1518) is fixedly connected to the delivery end of the delivery pump (1512). One end of the coolant delivery pipe (1518) is connected to the inside of the hollow rotating shaft (1523) through a bearing. The extraction end of the delivery pump (1512) is connected to the inside of the storage frame (1507) through a pipe. A feeding hole is opened on the outer side wall of the storage frame (1507) facing upward. A feeding pipe (1505) is fixedly connected to the inside of the feeding hole. A pipe cap (1504) is screwed onto the feeding pipe (1505).

6. The plug-in hybrid-driven automotive valve durability testing device according to claim 5, characterized in that, A rotating frame (1514) is fixedly connected to the outer wall of the hollow rotating shaft (1523), and hydraulic cylinders (1515) are fixedly connected at equal intervals on the rotating frame (1514). A brush plate (1517) is fixedly connected to the output end of each hydraulic cylinder (1515), and a cleaning brush (1516) is provided on each brush plate (1517). A telescopic connecting rod (1513) is fixedly connected to the side of the brush plate (1517) facing the rotating frame (1514), and one end of the telescopic connecting rod (1513) is fixed. Connected to the rotating frame (1514), the lifting ring frame (1503) is fixedly connected to the side of the hollow rotating shaft (1523) with a motor frame (1519). A drive motor (1520) is fixedly connected to the motor frame (1519). The output shaft of the drive motor (1520) is fixedly connected to the driving gear (1521) through a coupling. A driven gear (1522) is fixedly connected to the outer wall of the hollow rotating shaft (1523). The driving gear (1521) and the driven gear (1522) mesh with each other.

7. The plug-in hybrid-driven automotive valve durability testing device according to claim 1, characterized in that, The operating chamber (1) has door openings on both sides, and the inner walls of both door openings are connected to chamber doors (2) by hinges. The operating chamber (1) has an observation window (7). The bottom inner wall of the operating chamber (1) near the valve head (12) is fixedly connected to a fixed seat (13), and a high-frequency induction coil (14) is provided on the fixed seat (13).

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