Engine cold and hot impact test equipment and method

Abstract

The invention discloses engine cold and hot impact test equipment and method, and relates to the technical field of cold and hot impact, the engine cold and hot impact test equipment comprises a base, a shell is fixedly mounted at the top of the base, a detection device is arranged on the surface of the shell, a partition plate is fixedly mounted on the inner wall of the shell, and a servo motor is fixedly mounted at the top of the inner wall of the shell. The rotating disc is rotationally installed on the surface of the partition plate, one end of the rotating column is fixedly installed at the top of the rotating disc, the other end of the rotating column is fixedly installed at the bottom of the output end of the servo motor, the heating machine is fixedly installed at the top of the rotating disc, and the refrigerating machine is fixedly installed at the top of the rotating disc. The arc plate is fixedly installed at the bottom of the rotating disc, the heating machine is driven to rotate to the testing opening through rotation, the engine can be tested without the need of rapidly adjusting the temperature through one testing machine by changing the testing machine, and the blank period in the testing process is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of thermal shock, and in particular to an engine thermal shock test device and method. Background Art

[0002] An engine thermal shock test device is a device used to simulate the working environment of an engine under extreme temperature changes to test its performance and durability under rapid temperature changes (alternating between hot and cold).

[0003] Patent announcement number CN220872082U relates to an engine thermal shock test device, including an engine and a water storage device. When the engine is shut down for cooling, the cooling water in the water storage chamber flows into the cooling channel of the engine through the first water inlet and the second water outlet, and the cooling water exchanges heat with the engine. The cooling water after the heat exchange flows into the water storage chamber through the first water outlet and the second water inlet, and the cooling water in the water storage chamber flows into the cooling channel of the engine through the first water inlet and the second water outlet again. The shutdown cooling condition time is cycled according to the above method, so that the engine is quickly cooled to normal temperature. Due to the large temperature drop, the engine thermal shock test process can achieve the cooling to alternating time efficiency, which is conducive to accurately evaluating the performance and reliability of the engine at different temperatures.

[0004] In the above patent, the cyclic cooling shutdown cooling time allows the engine to quickly cool to normal temperature. Due to the large temperature drop, the engine hot and cold shock test process can achieve the cooling alternation time efficiency, which is conducive to accurately evaluating the performance and reliability of the engine at different temperatures. However, when conducting hot and cold shock experiments, rotating the hot and cold machines when they are exchanged will cause the entire device to vibrate, affecting the measurement results. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an engine thermal shock test device and method, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an engine thermal shock test device, comprising a base, a shell is fixedly installed on the top of the base, a detection device is arranged on the surface of the shell, and a rotating device, a lifting device and a demisting device are arranged inside the shell; Among them, the rotating device includes: a partition plate, a servo motor, a rotating disk, a rotating column, a heating machine, a refrigerator, an arc plate, a through rod, a roller and a cross bar. The partition plate is fixedly installed on the inner wall of the shell, the servo motor is fixedly installed on the top of the inner wall of the shell, the rotating disk is rotatably installed on the surface of the partition plate, one end of the rotating column is fixedly installed on the top of the rotating disk, and the other end of the rotating column is fixedly installed on the bottom of the output end of the servo motor, the heating machine is fixedly installed on the top of the rotating disk, the refrigerator is fixedly installed on the top of the rotating disk, the arc plate is fixedly installed on the bottom of the rotating disk, the through rod slides and penetrates the inner and outer walls of the partition plate, the roller is rotatably installed on the top of the through rod, and the cross bar is fixedly installed and penetrates the inner and outer walls of the through rod. The roller moves to the bottom and contacts with the rotating disk. After the roller contacts the rotating disk, it drives the roller to rotate, and the roller fits tightly with the rotating disk when it rotates.

[0007] According to the above technical solution, a No. 1 spring is arranged between the penetration rod and the partition plate, the roller is in contact with the rotating disk, and the penetration rod is driven to reset by the No. 1 spring.

[0008] According to the above technical scheme, the lifting device includes: an air outlet slot, a fixed plate, a driving device, a guide plate 1 and a guide plate 2, the air outlet slot is opened on the surface of the partition plate, the fixed plate is fixedly installed on the inner wall of the air outlet slot, the driving device is arranged on the inner wall of the air outlet slot, one end of the guide plate 1 is fixedly installed on the side of the fixed plate close to each other, and the other end of the guide plate 1 is rotatably installed on the surface of the driving device, one end of the guide plate 2 is fixedly installed on the side of the fixed plate close to each other, and the other end of the guide plate 2 is rotatably installed on the surface of the driving device, and the rotation of the guide plate 1 and the guide plate 2 will diffuse the wind blown out by the heating machine or the refrigerator to a wider area through rotation.

[0009] According to the above technical solution, the lifting device also includes: an L-shaped rod, a fixed seat, a rotating rod, a square block, a sliding plate, a triangular block and an arc block, the L-shaped rod is fixedly installed on the circumferential surface of the arc plate, the fixed seat is fixedly installed on the surface of the guide plate 2, the rotating rod is rotatably installed on the side of the fixed seat away from the guide plate 2, the square block is fixedly installed on the surface of the rotating rod, the sliding plate is slidably installed on the side of the fixed seat away from the square block, the triangular block is fixedly installed on the surface of the sliding plate, and the arc block is fixedly installed on the bottom of the partition plate, the movement of the triangular block will drive the sliding plate to move, and after the sliding plate moves, it no longer contacts the rotating rod, so that the rotating rod can rotate, and after the rotating rod rotates, the L-shaped rod no longer contacts the rotating rod.

[0010] According to the above technical solution, a No. 2 spring is arranged between the sliding plate and the fixing seat, the triangular block contacts the arc surface block, and the sliding plate is driven to reset by the No. 2 spring.

[0011] According to the above technical scheme, the defogger includes: a recovery frame, a sliding groove, two sliders, a scraper, a blocking block, a transmission arc block, a recovery box, a telescopic rod and an air outlet plate. The recovery frame is fixedly installed on a side of the partition plate close to the second guide plate, the sliding groove is opened on the inner wall of the recovery frame, the slider is slidably installed on the inner wall of the sliding groove, the scraper is rotatably installed between the two sliders, the blocking block is fixedly installed on the inner wall of the recovery frame, the transmission arc block is fixedly installed on the top of the fixed seat, the recovery box is fixedly installed on the surface of the recovery frame, the telescopic rod is fixedly installed on the bottom of the partition plate, the air outlet plate is fixedly installed on the bottom of the telescopic rod, and the blocking block drives the scraper to rotate toward the bottom. After the scraper rotates, the moisture on the surface of the scraper flows toward the bottom to the inside of the recovery frame and then flows to the inside of the recovery box.

[0012] According to the above technical solution, a torsion spring is arranged between the sliding block and the scraper, the blocking block is in contact with the transmission arc block, and the scraper is driven to reset by the torsion spring.

[0013] According to the above technical solution, the transmission arc block is in contact with the scraper, and a No. 3 spring is arranged between the slider and the recovery frame, and the slider is driven to reset by the No. 3 spring.

[0014] The present invention provides an engine thermal shock test device and method, which has the following beneficial effects: (1) The invention drives the refrigerator to rotate by rotating the rotating disk, and drives the heating machine to rotate to the test port by rotating the rotating disk. By changing the test machine, it is no longer necessary to quickly adjust the temperature through a test machine to test the engine, thereby shortening the blank period during the test and improving the measurement accuracy. When the roller rotates, it fits tightly with the rotating disk, so that the amplitude of the vibration of the rotating disk is reduced, preventing the heating machine or refrigerator from continuing to output vibration during the conversion, thereby driving the outer shell to vibrate, reducing the wear of the entire device and increasing the service life of the device.

[0015] (2) The invention, by rotating the guide plate 1 and the guide plate 2, can spread the wind blown out by the heating machine or the cooling machine to a wider area, so that the speed of cooling or heating the engine when performing the hot-cold conversion is increased, thereby improving the measurement accuracy. The movement of the fixed seat can drive the guide plate 2 to stop moving, so that the guide plate 1 and the guide plate 2 will not rotate when the heating machine and the cooling machine are switched. When the hot-cold conversion is performed, the guide plate 1 and the guide plate 2 temporarily stop rotating, so that the device is temporarily paused, preventing the device from being damaged due to material fatigue caused by long-term uninterrupted operation, reducing the risk of damage to the device, and improving the protection effect of the device. After the sliding plate moves, it no longer contacts the rotating rod, so that the rotating rod can rotate. After the rotating rod rotates, the L-shaped rod no longer contacts the rotating rod. Then, after the fixed seat is reset, it can work again during the next hot-cold exchange, thereby improving the practicality of the device.

[0016] (3) The invention, through the movement of the scraper, will contact the guide plate 2 and scrape the surface of the guide plate 2, thereby preventing the presence of fog on the surface of the guide plate 2 during hot and cold exchange, which will cause condensation columns to form and fall when the temperature rises or falls, thereby reducing errors during detection. After the scraper rotates, the moisture on the scraper surface flows to the bottom to the inside of the recovery frame and then flows to the inside of the recovery box, so that the water vapor is cleaned and recycled, thereby improving the cleanliness of the inside of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the housing of the present invention; Figure 3 It is a schematic diagram of the structure of the rotating device of the present invention; Figure 4 This is a schematic diagram of the bottom structure of the partition plate of the present invention; Figure 5 This is a schematic diagram of the position relationship structure of the through rod of the present invention; Figure 6 This is a schematic diagram of the position relationship structure of the partition plate of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the structure enlargement of part A; Figure 8 It is a schematic diagram of the structure of the lifting device of the present invention; Fig. 9 It is a schematic diagram of the structure of the demisting device of the present invention; Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of part B.

[0018] In the figure: 1. base; 2. shell; 3. detection device; 41. partition plate; 42. servo motor; 43. rotating disk; 44. rotating column; 45. heating machine; 46. refrigerator; 47. arc plate; 48. through rod; 49. roller; 410. cross bar; 411. spring No. 1; 51. air outlet slot; 52. fixed plate; 53. driving device; 54. guide plate one; 55. guide plate two; 56. L-shaped rod; 57. fixed seat; 58. rotating rod; 59. square block; 510. sliding plate; 511. triangular block; 512. arc block; 61. recovery frame; 62. sliding slot; 63. slider; 64. scraper; 65. blocking block; 66. transmission arc block; 67. recovery box; 68. telescopic rod; 69. air outlet plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 10 One embodiment of the present invention is: an engine thermal shock test device and method, comprising a base 1, a shell 2 is fixedly mounted on the top of the base 1, a detection device 3 is arranged on the surface of the shell 2, a rotating device is arranged inside the shell 2, and the rotating device comprises: a partition plate 41, a servo motor 42, a rotating disk 43, a rotating column 44, a heating machine 45, a refrigerator 46, an arc plate 47, a through rod 48, a roller 49 and a cross bar 410, the partition plate 41 is fixedly mounted on the inner wall of the shell 2, the servo motor 42 is fixedly mounted on the top of the inner wall of the shell 2, the rotating disk 43 is rotatably mounted on the surface of the partition plate 41, one end of the rotating column 44 is fixedly mounted on the top of the rotating disk 43, and the other end of the rotating column 44 is fixedly mounted on the output end of the servo motor 42 At the bottom, the heater 45 is fixedly mounted on the top of the rotating disk 43, and the refrigerator 46 is fixedly mounted on the top of the rotating disk 43. By changing the test machine, it is no longer necessary to quickly adjust the temperature through a test machine to test the engine, which shortens the blank period during testing and improves measurement accuracy. The arc plate 47 is fixedly mounted on the bottom of the rotating disk 43, and the through rod 48 slides through the inner and outer walls of the partition plate 41. The roller 49 is rotatably mounted on the top of the through rod 48, and the cross bar 410 is fixedly mounted on the inner and outer walls of the through rod 48, so that the amplitude of vibration of the rotating disk 43 when it rotates is reduced, preventing the heater 45 or the refrigerator 46 from continuing to output vibration during conversion, causing the outer shell 2 to vibrate, reducing the wear of the overall device and increasing the service life of the device.

[0021] A No. 1 spring 411 is provided between the penetration rod 48 and the partition plate 41 , and the roller 49 is in contact with the rotating disk 43 , and the No. 1 spring 411 drives the penetration rod 48 to reset.

[0022] A method for using an engine thermal shock test device comprises the following steps: Step 1: Place the engine inside the housing 2, and then start the heating machine 45 or the cooling machine 46; Step 2: After the heating machine 45 blows out hot air, the refrigerator 46 blows out cold air to perform a hot and cold shock test on the engine; Step 3: Measure and transmit the test data through the detection device 3 to complete the measurement of engine thermal shock technology When the present embodiment is working, the engine is placed inside the housing 2, and then the heating machine 45 or the cooling machine 46 is started. The heating machine 45 blows out hot air and the cooling machine 46 blows out cold air, and a hot and cold shock test is performed on the engine. The test data is metered and transmitted through the detection device 3 to complete the measurement of the hot and cold shock technology of the engine. The servo motor 42 is started, and the rotation of the output end of the servo motor 42 drives the rotating column 44 to rotate. The rotation of the rotating column 44 drives the rotating disk 43 to rotate. The rotation of the rotating disk 43 drives the cooling machine 46 to rotate, and the heating machine 45 is driven to rotate to the test port by the rotation. By changing the test machine, it is no longer necessary to quickly adjust the temperature through a test machine to test the engine, and the test time is shortened. During the blank period of the test, the measurement accuracy is improved. The rotation of the rotating disk 43 will drive the arc plate 47 to rotate. The rotation of the arc plate 47 will move toward the bottom with the cross bar 410. The movement of the cross bar 410 will drive the through rod 48 to move toward the bottom. The movement of the through rod 48 to the bottom will drive the roller 49 to move toward the bottom. The movement of the roller 49 to the bottom will contact the rotating disk 43. After the roller 49 contacts the rotating disk 43, it drives the roller 49 to rotate. When the roller 49 rotates, it fits tightly with the rotating disk 43, so that the amplitude of the vibration of the rotating disk 43 when it rotates is reduced, preventing the heating machine 45 or the refrigerator 46 from continuing to output and generating vibration during the conversion, causing the outer shell 2 to generate vibration, thereby reducing the wear of the overall device and increasing the service life of the device.

[0023] See also Figure 1-Figure 10 On the basis of the above embodiment, in another embodiment of the present invention, a lifting device and a defogger are arranged inside the housing 2, wherein the lifting device comprises: an air outlet slot 51, a fixing plate 52, a driving device 53, a guide plate 1 54 and a guide plate 2 55, the air outlet slot 51 is opened on the surface of the partition plate 41, the fixing plate 52 is fixedly mounted on the inner wall of the air outlet slot 51, the driving device 53 is arranged on the inner wall of the air outlet slot 51, one end of the guide plate 1 54 is fixedly mounted on a side of the fixing plate 52 close to each other, and the other end of the guide plate 1 54 is rotatably mounted on the surface of the driving device 53, one end of the guide plate 2 55 is fixedly mounted on a side of the fixing plate 52 close to each other, and the other end of the guide plate 2 55 is rotatably mounted on the surface of the driving device 53, so that the speed of cooling or heating up the engine during the cold-heat conversion is improved, thereby improving the measurement accuracy.

[0024] The lifting device also includes: an L-shaped rod 56, a fixed seat 57, a rotating rod 58, a square block 59, a sliding plate 510, a triangular block 511 and an arc block 512. The L-shaped rod 56 is fixedly installed on the circumferential surface of the arc plate 47, the fixed seat 57 is fixedly installed on the surface of the guide plate 2 55, the rotating rod 58 is rotatably installed on the side of the fixed seat 57 away from the guide plate 2 55, the square block 59 is fixedly installed on the surface of the rotating rod 58, the sliding plate 510 is slidably installed on the side of the fixed seat 57 away from the square block 59, and the triangular block 511 is fixedly installed on the surface of the sliding plate 510, so that the guide plate 1 54 and the guide plate 2 55 temporarily stop rotating during the hot and cold conversion, so that the device is temporarily paused to prevent the device from being damaged due to fatigue of the device material due to long-term uninterrupted operation, reduce the risk of damage to the device, and improve the protection effect of the device. The arc block 512 is fixedly installed on the bottom of the partition plate 41, and then the fixed seat 57 is reset and can work again during the next hot and cold exchange, thereby improving the practicality of the device.

[0025] A No. 2 spring is provided between the sliding plate 510 and the fixing seat 57 , and the triangular block 511 is in contact with the arc surface block 512 , and the sliding plate 510 is driven to reset by the No. 2 spring.

[0026] The defogger device comprises: a recovery frame 61, a sliding groove 62, two sliders 63, a scraper 64, a blocking block 65, a transmission arc block 66, a recovery box 67, a telescopic rod 68 and an air outlet plate 69. The recovery frame 61 is fixedly mounted on a side of the partition plate 41 close to the guide plate 2 55. The sliding groove 62 is arranged on the inner wall of the recovery frame 61. The slider 63 is slidably mounted on the inner wall of the sliding groove 62. The scraper 64 is rotatably mounted between the two sliders 63. The blocking block 65 is fixedly mounted on the inner wall of the recovery frame 61 to prevent the presence of fog on the surface of the guide plate 2 55 during the cold and hot exchange, which causes the generation of condensation columns and falls when the temperature rises or drops, thereby reducing the error during the detection. The transmission arc block 66 is fixedly mounted on the top of the fixing seat 57, the recovery box 67 is fixedly mounted on the surface of the recovery frame 61, the telescopic rod 68 is fixedly mounted on the bottom of the partition plate 41, and the air outlet plate 69 is fixedly mounted on the bottom of the telescopic rod 68, so that the water vapor can be cleaned and recovered, thereby improving the cleanliness of the inside of the device.

[0027] A torsion spring is provided between the slider 63 and the scraper 64 , and the blocking block 65 is in contact with the transmission arc block 66 , and the scraper 64 is driven to reset by the torsion spring.

[0028] The transmission arc block 66 contacts the scraper 64 , and a No. 3 spring is arranged between the slider 63 and the recovery frame 61 , and the slider 63 is driven to reset by the No. 3 spring.

[0029] When the present embodiment is working, the driving device 53 is started, and the driving device 53 moves to drive the guide plate 1 54 and the guide plate 2 55 to rotate. The rotation of the guide plate 1 54 and the guide plate 2 55 will spread the wind blown out by the heating machine 45 or the refrigerator 46 to a wider area through rotation, so that the speed of cooling or heating up the engine when performing hot and cold conversion is increased, and the accuracy of measurement is improved. The rotation of the arc plate 47 will drive the L-shaped rod 56 to rotate, and the rotation of the L-shaped rod 56 will contact the square block 59. The rotation of the L-shaped rod 56 will drive the square block 59 to move. The movement of the square block 59 drives the rotating rod 58 to move in the direction of the arc surface block 512. The movement of the rotating rod 58 will contact the sliding plate 510. The rotating rod 58 is blocked by the sliding plate 510 so that the rotating rod 58 cannot rotate in the direction of the arc surface block 512. The rotation of the rotating rod 58 drives the fixed seat 57 to move in the direction of the sliding plate 510. The movement of the fixed seat 57 will drive the guide plate 2 55 to stop moving, so that When the heating machine 45 and the cooling machine 46 are switched, the guide plate 1 54 and the guide plate 2 55 will not rotate, so that the guide plate 1 54 and the guide plate 2 55 temporarily stop rotating during the hot and cold switching, so that the device is temporarily paused to prevent the device from being damaged due to fatigue of the device material due to long-term uninterrupted operation, reduce the risk of damage to the device, and improve the protection effect of the device. The movement of the sliding plate 510 drives the triangular block 511 to move. The movement of the triangular block 511 will contact the arc block 512, and the arc block 512 will block the triangular block 511, so that the triangular block 511 moves away from the rotating rod 58. The movement of the triangular block 511 will drive the sliding plate 510 to move. After the sliding plate 510 moves, it no longer contacts the rotating rod 58, so that the rotating rod 58 can rotate. After the rotating rod 58 rotates, the L-shaped rod 56 no longer contacts the rotating rod 58. Then, after the fixing seat 57 is reset, it can work again during the next hot and cold exchange, thereby improving the practicality of the device.

[0030] The movement of the fixed seat 57 drives the transmission arc block 66 to move, and the movement of the transmission arc block 66 will contact the scraper 64. The movement of the transmission arc block 66 drives the scraper 64 to move to the top. The scraper 64 moves to contact the guide plate 2 55 and scrape the surface of the guide plate 2 55 to prevent the presence of fog on the surface of the guide plate 2 55 during hot and cold exchange, which causes the generation of condensation columns and falling when heating or cooling, thereby reducing the error during detection. The scraper 64 moves to the top and contacts the blocking block 65. The blocking block 65 drives the scraper 64 to rotate to the bottom. After the scraper 64 rotates, the moisture on the surface of the scraper 64 flows to the bottom to the inside of the recovery frame 61 and then to the inside of the recovery box 67, so that the water vapor is cleaned and recycled, thereby improving the cleanliness of the inside of the device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engine thermal shock test device, comprising a base (1), characterized in that: A housing (2) is fixedly mounted on the top of the base (1); a detection device (3) is provided on the surface of the housing (2); and a rotating device, a lifting device and a demisting device are provided inside the housing (2); The rotating device comprises: a partition plate (41), a servo motor (42), a rotating disk (43), a rotating column (44), a heating machine (45), a refrigerator (46), an arc plate (47), a through rod (48), a roller (49) and a cross bar (410), wherein the partition plate (41) is fixedly mounted on the inner wall of the housing (2), the servo motor (42) is fixedly mounted on the top of the inner wall of the housing (2), the rotating disk (43) is rotatably mounted on the surface of the partition plate (41), and one end of the rotating column (44) is fixedly mounted on the rotating disk (43). The other end of the rotating column (44) is fixedly mounted on the bottom of the output end of the servo motor (42), the heating machine (45) is fixedly mounted on the top of the rotating disk (43), the cooling machine (46) is fixedly mounted on the top of the rotating disk (43), the arc plate (47) is fixedly mounted on the bottom of the rotating disk (43), the penetration rod (48) is slidably penetrated through the inner and outer walls of the partition plate (41), the roller (49) is rotatably mounted on the top of the penetration rod (48), and the cross rod (410) is fixedly penetrated through the inner and outer walls of the penetration rod (48).

2. The engine thermal shock test equipment according to claim 1, characterized in that: A first spring (411) is provided between the penetration rod (48) and the partition plate (41), and the roller (49) is in contact with the rotating disk (43).

3. The engine thermal shock test equipment according to claim 2, characterized in that: The lifting device comprises: an air outlet slot (51), a fixed plate (52), a driving device (53), a guide plate 1 (54) and a guide plate 2 (55); the air outlet slot (51) is opened on the surface of the partition plate (41); the fixed plate (52) is fixedly mounted on the inner wall of the air outlet slot (51); the driving device (53) is arranged on the inner wall of the air outlet slot (51); one end of the guide plate 1 (54) is fixedly mounted on a side of the fixed plate (52) close to each other; the other end of the guide plate 1 (54) is rotatably mounted on the surface of the driving device (53); one end of the guide plate 2 (55) is fixedly mounted on a side of the fixed plate (52) close to each other; the other end of the guide plate 2 (55) is rotatably mounted on the surface of the driving device (53).

4. The engine thermal shock test equipment according to claim 3, characterized in that: The lifting device further comprises: an L-shaped rod (56), a fixed seat (57), a rotating rod (58), a square block (59), a sliding plate (510), a triangular block (511) and an arc surface block (512), wherein the L-shaped rod (56) is fixedly mounted on the circumferential surface of the arc plate (47), the fixed seat (57) is fixedly mounted on the surface of the second guide plate (55), the rotating rod (58) is rotatably mounted on a side of the fixed seat (57) away from the second guide plate (55), the square block (59) is fixedly mounted on the surface of the rotating rod (58), the sliding plate (510) is slidably mounted on a side of the fixed seat (57) away from the square block (59), the triangular block (511) is fixedly mounted on the surface of the sliding plate (510), and the arc surface block (512) is fixedly mounted on the bottom of the partition plate (41).

5. The engine thermal shock test equipment according to claim 4, characterized in that: A No. 2 spring is provided between the sliding plate (510) and the fixing seat (57), and the triangular block (511) is in contact with the arc surface block (512).

6. The engine thermal shock test equipment according to claim 5, characterized in that: The demisting device comprises: a recovery frame (61), a sliding groove (62), two sliding blocks (63), a scraper (64), a blocking block (65), a transmission arc block (66), a recovery box (67), a telescopic rod (68) and an air outlet plate (69), wherein the recovery frame (61) is fixedly mounted on a side of the partition plate (41) close to the second guide plate (55), the sliding groove (62) is opened on the inner wall of the recovery frame (61), the sliding block (63) is slidably mounted on the inner wall of the sliding groove (62), the scraper (64) is rotatably mounted between the two sliding blocks (63), the blocking block (65) is fixedly mounted on the inner wall of the recovery frame (61), the transmission arc block (66) is fixedly mounted on the top of the fixing seat (57), the recovery box (67) is fixedly mounted on the surface of the recovery frame (61), the telescopic rod (68) is fixedly mounted on the bottom of the partition plate (41), and the air outlet plate (69) is fixedly mounted on the bottom of the telescopic rod (68).

7. The engine thermal shock test equipment according to claim 6, characterized in that: A torsion spring is provided between the sliding block (63) and the scraper (64), and the blocking block (65) is in contact with the transmission arc block (66).

8. The engine thermal shock test equipment according to claim 7, characterized in that: The transmission arc block (66) is in contact with the scraper (64), and a No. 3 spring is provided between the slider (63) and the recovery frame (61).

9. A method for using an engine thermal shock test device, using the engine thermal shock test device according to claim 8, characterized in that: The following steps are involved: Step 1: placing the engine inside the housing (2), and then starting the heating machine (45) or the cooling machine (46); Step 2: The heating machine (45) blows out hot air and then the cooling machine (46) blows out cold air, and the engine is subjected to a hot and cold shock test; Step 3: The test data is measured and transmitted through the detection device (3) to complete the measurement of the engine's thermal shock technology.

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