Fatigue life test bench of automobile chassis

Abstract

The invention discloses a fatigue life test bench of an automobile chassis, and relates to the technical field of automobile chassis detection equipment.The fatigue life test bench comprises a fixed bottom plate and further comprises a supporting plate installed on the top of the fixed bottom plate, and the fatigue life test bench has the advantages that the fixed bottom plate, a fixed frame and a life test box are arranged, and the top of the life test box is sleeved with a placement table; in cooperation with placement operation of an automobile chassis, the recycling box is used for uniformly recycling garbage generated during field operation, and later-stage cleaning by workers is facilitated; the device is provided with the support adjusting mechanism and the placing box, thereby achieving the adjustment of the height of the support plate, meeting the requirements of tests in different scenes, improving the operation flexibility of the device, achieving the multi-test processing in the service life test of the automobile chassis, and improving the test efficiency. The situation that the automobile chassis is manually and frequently transferred to other operation places for other item detection is reduced, the use requirement is met, and workers can conveniently and rapidly master and learn operation.

Description

Technical Field

[0001] The invention relates to the technical field of automobile chassis detection equipment, in particular to a fatigue life test bench for automobile chassis. Background Art

[0002] The automobile chassis consists of four parts: the transmission system, the running system, the steering system and the braking system. The function of the chassis is to support and install the automobile engine and its components and assemblies, form the overall shape of the automobile, and receive the power of the engine to make the automobile move and ensure normal driving.

[0003] It is mainly used for dynamic, static or fatigue mechanical performance testing of chassis, including high and low cycle fatigue and simulation of actual working condition tests. It can also test different parts by changing the fixture, including metal, non-metal and parts. It can be used for tension, compression, low and high cycle fatigue, crack propagation, fracture mechanics and other mechanical experiments, bench fatigue life test of chassis parts, front and rear axles, airbag supports, equalizing beams, etc., leaf spring test, shock absorber test, airbag dynamic stiffness test, rubber bushing dynamic stiffness test, etc.

[0004] In the prior art, when fatigue life detection tests are performed on automobile chassis, most of the tests are performed one item at a time, that is, the automobile chassis needs to be manually transported after completing a test, which increases the labor intensity of manual transportation. The overall equipment has low flexibility in use. At the same time, multiple test and detection equipment need to be operated, which increases the learning and operation costs of the staff and cannot meet the needs of normal use. Therefore, the present invention needs to design a fatigue life test bench for the automobile chassis to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a fatigue life test bench for automobile chassis to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a fatigue life test bench for an automobile chassis, comprising a fixed bottom plate, and further comprising: A support plate is installed on the top of the fixed bottom plate; A life test box extending to the top of the support plate is installed on the top of the fixed bottom plate; The top of the support plate is fixedly connected with a fixing frame, the top of the fixing frame is fixedly connected with a mounting top plate, the bottom of the mounting top plate is rotatably connected with two connecting ropes, a fixing rope is installed between the two connecting ropes, a fixing ring is sleeved on the outer side of the fixing rope, and a collision test plate is installed at the bottom of the fixing ring; A placement box is fixedly connected to the top of the support plate, and the placement box is located obliquely behind the collision test plate. Second limit pins that are equidistant and symmetrically distributed are threadedly connected to both sides of the placement box. A second limit pin with the same structure is installed on the top of the placement box, and a placement cavity for matching the second limit pin and the chassis of the car is opened on one side of the placement box. Two support adjustment mechanisms are installed between the fixed bottom plate and the support plate.

[0007] As a preferred embodiment of the present invention, the support adjustment mechanism includes a support sleeve and a support slide bar, and two support slide bars are installed between the fixed base plate and the support plate, and the two support sleeves are symmetrically distributed, and the two support sleeves are located on both sides of the life test box, and the two ends of the two support sleeves are slidably connected with the support slide bar, and the ends of the two support slide bars that are away from each other are fixedly connected to the support seat, and the bottom of one of the support seats is fixedly connected to the fixed base plate, and the top of the other support seat is fixedly connected to the support plate. One side of the two support sleeves is equipped with a first limit pin for cooperating with the corresponding support slide bar, and the interior of the two support sleeves is provided with a sliding groove for cooperating with the support slide bar. By twisting the corresponding first limit pin, it is convenient to adjust the position of the support slide bar in the support sleeve until it is re-positioned by the first limit pin as required, thereby realizing the height adjustment of the support plate, meeting the needs of different scenario tests, and improving the operating flexibility of the equipment.

[0008] As a preferred embodiment of the present invention, a storage device is installed on the top of the fixed base plate and on one side of one of the supporting sleeves, and a battery is installed on the top of the fixed base plate and on one side of the other supporting sleeve. A storage cavity is opened inside the storage device, and the required test equipment and items can be conveniently sealed and stored through the storage device and the storage cavity, so that they can be easily taken out when used. The installation of the battery provides the power resources required for the operation of the equipment.

[0009] As a preferred embodiment of the present invention, a partition is fixedly connected to the interior of the life test box, a sealed test box is fixedly connected to one side of the partition, equidistantly distributed heating tubes are installed inside the sealed test box, and a test cover is fixedly connected to the top of the heating tube. The test cover and the sealed test box are used to place the automobile chassis or the unassembled automobile chassis for processing, and a heating is performed once by the heating tube to assist subsequent life test detection. A temperature control chamber is installed on the top of the partition, and equidistantly distributed air outlets are opened on the outside of the temperature control chamber. A fan and a heating wire are fixedly connected to the interior of the temperature control chamber, and two inspection covers are installed on the outside of the life test box, and equidistantly distributed control A switch is provided on the top of the life test box, an exhaust fan is fixedly connected to the output end of the exhaust fan, one end of the exhaust pipe extends to the inside of the life test box, a buzzer is fixedly connected to the top of the life test box and on one side of the exhaust fan, a temperature sensor is fixedly connected to the inside of the life test box and on the side of the sealed test box away from the inspection cover, the temperature change inside the life test box is detected in real time by the temperature sensor, when it exceeds the preset value, an external buzzer is used for early warning, when it is lower than the preset value, the fan and the heating wire inside the temperature control chamber are both operated, the inside of the life test box is auxiliary heated, so as to facilitate the test and detection of the high temperature resistance of the automobile chassis and the high temperature resistance test of the automobile chassis in the fatigue life test.

[0010] As a preferred embodiment of the present invention, two first fixing seats are fixedly connected to the top of the mounting top plate, and limit clamps are installed on the tops of the two first fixing seats. A connecting shaft is rotatably connected between the two limit clamps, and two connecting blocks are installed on the outer side of the connecting shaft. The bottoms of the two connecting blocks are fixedly connected to the corresponding connecting ropes. A pressure sensor is installed on the inner wall of the collision test plate. When the collision test plate hits the automobile chassis, the collision force is detected by the pressure sensor. A driving motor is fixedly connected to one side of one of the first fixing seats, and the bottom of the driving motor is connected to the mounting top plate through the motor mounting plate. The output end of the driving motor is fixedly connected to one end of the connecting shaft. The driving motor is operated to drive the connecting shaft to rotate, and the two connecting blocks on the outer side of the connecting shaft are driven to rotate to one side under the limit of the limit groove, thereby controlling the collision test plate to swing to one side. At this time, the driving motor is controlled to reset, driving the collision test plate to reset, and the above operation is repeated, thereby realizing auxiliary knocking treatment on both sides of the placed automobile chassis and performing hardness testing on the automobile chassis in fatigue life testing.

[0011] As a preferred embodiment of the present invention, a recycling box is fixedly connected to the top of the fixed bottom plate, and the recycling box is located on one side of the life test box. A placing table used in conjunction with the life test box is installed on the top of the support plate, and the placing table is located below the collision test plate. An installation inner cavity for cooperating with the life test box is opened inside the support plate. The life test box is installed by opening an installation inner cavity inside the support plate. When the life test box is not in operation or when the collision test plate is required for auxiliary detection, the placing table is put on the top of the life test box to cooperate with the placement operation of the automobile chassis. The recycling box is used for unified recycling and processing of garbage generated during on-site operations, which is convenient for later staff to clean up.

[0012] As a preferred embodiment of the present invention, a control panel is fixedly connected to the outside of the recovery box, and the drive motor, battery, exhaust fan, heating tube, temperature control chamber and control switch are all electrically connected to the control panel. The control panel is used to control the operation of the battery, drive motor, exhaust fan, heating tube, temperature control chamber and control switch, thereby realizing unified management of power equipment.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a fixed bottom plate, a fixed frame and a life test box, and a high temperature resistance test in fatigue life test of the automobile chassis is performed. A pressure sensor is installed on the inner wall of the collision test plate. When the collision test plate knocks the automobile chassis, the collision force is detected by the pressure sensor. The driving motor is driven to rotate, and the two connecting blocks on the outer side of the connecting shaft are driven to rotate to one side under the limit of the limit groove, so as to control the collision test plate to swing to one side. At this time, the driving motor is controlled to reset, and the collision test plate is driven to reset. The above operation is repeated, so as to realize auxiliary knocking treatment on both sides of the placed automobile chassis, and the hardness test in fatigue life test of the automobile chassis is performed. The life test box is installed by opening an installation cavity inside the support plate. When the life test box is not in operation or when the collision test plate is required for auxiliary detection, the placement table is placed on the top of the life test box, and the automobile chassis is placed in cooperation with the operation. The recycling box is used for unified recycling of garbage generated during on-site operations, which is convenient for later staff to clean up; 2. The present invention is provided with a support adjustment mechanism and a placement box. A storage cavity is provided inside the storage device. The storage device and the storage cavity are used to seal and store the required test equipment and items, so that they can be taken out when in use. The battery is installed to provide the power resources required for the operation of the equipment. The two support sleeves are provided with sliding grooves used to cooperate with the support slide rod. By twisting the corresponding first limit pin, the position of the support slide rod in the support sleeve can be conveniently adjusted until it is re-positioned by the first limit pin as required, thereby adjusting the height of the support plate to meet the needs of different scene tests, improving the operating flexibility of the equipment, thereby realizing multiple test processes in the automobile chassis life test, reducing the situation of frequent manual transportation of the automobile chassis to other work sites for other project inspections, meeting the needs of use, and facilitating the staff to quickly get started and learn the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle; Figure 3 It is an enlarged schematic diagram of the local structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the life test chamber of the present invention; Figure 5 It is an enlarged schematic diagram of the support and adjustment mechanism of the present invention; Figure 6 It is an enlarged schematic diagram of the structure at location A of the present invention.

[0015] In the figure: 1. Fixed bottom plate; 11. Recovery box; 12. Control panel; 13. Storage equipment; 14. Battery; 15. Placement table; 16. Installation cavity; 2. Support plate; 3. Fixing frame; 31. Mounting top plate; 32. Driving motor; 33. First fixing seat; 34. Limiting clamp; 35. Connecting shaft; 36. Connecting block; 37. Connecting rope; 38. Limiting groove; 39. Collision test plate; 391. Fixing rope; 392. Fixing ring; 4. Life test chamber; 41. Inspection cover; 42. Exhaust fan; 43. Sealed test box; 44. Test cover; 45. Heating tube; 46. Partition; 47. Temperature control chamber; 48. Air outlet; 49. Control switch; 5. Support adjustment mechanism; 51. Support sleeve; 52. Support slide bar; 53. Support seat; 54. First limit pin; 6. Place the box; 61. Second limit latch. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-Figure 6 The present invention provides a technical solution: a fatigue life test bench for an automobile chassis, comprising a fixed bottom plate 1, and further comprising: a support plate 2 is installed on the top of the fixed bottom plate 1; a life test box 4 extending to the top of the support plate 2 is installed on the top of the fixed bottom plate 1; a fixing frame 3 is fixedly connected to the top of the support plate 2, a mounting top plate 31 is fixedly connected to the top of the fixing frame 3, two connecting ropes 37 are rotatably connected to the bottom of the mounting top plate 31, a fixing rope 391 is installed between the two connecting ropes 37, a fixing ring 392 is sleeved on the outer side of the fixing rope 391, and a collision test plate 39 is installed at the bottom of the fixing ring 392; a placement box 6 is fixedly connected to the top of the support plate 2, and the placement box 6 is located at the collision test At the oblique rear of the test plate 39, the two sides of the placement box 6 are threadedly connected with second limit pins 61 that are equidistant and symmetrically distributed, the top of the placement box 6 is installed with a second limit pin 61 of the same structure, and one side of the placement box 6 is provided with a placement cavity for matching the second limit pin 61 and the automobile chassis; two support adjustment mechanisms 5 are installed between the fixed base plate 1 and the support plate 2 to meet the needs of different scene tests and improve the operational flexibility of the equipment, thereby realizing multiple test processing in the automobile chassis life test, reducing the situation of frequent manual transportation of the automobile chassis to other work locations for other project inspections, meeting the needs of use, and facilitating the staff to quickly get started and learn the operation.

[0018] See also Figure 5 In this solution, the support adjustment mechanism 5 includes a support sleeve 51 and a support slide rod 52. Two support slide rods 52 are installed between the fixed base plate 1 and the support plate 2. The two support sleeves 51 are symmetrically distributed. The two support sleeves 51 are located on both sides of the life test box 4. Both ends of the two support sleeves 51 are slidably connected with support slide rods 52.

[0019] The two ends of the two support slide bars 52 that are away from each other are fixedly connected to a support seat 53, wherein the bottom of one support seat 53 is fixedly connected to the fixed base plate 1, and the top of the other support seat 53 is fixedly connected to the support plate 2, and one side of the two support sleeves 51 is installed with a first limit pin 54 used in conjunction with the corresponding support slide bar 52.

[0020] The inside of the two support sleeves 51 are both provided with a slide groove used to cooperate with the support slide bar 52. By turning the corresponding first limit pin 54, the position of the support slide bar 52 inside the support sleeve 51 can be conveniently adjusted until it is re-positioned by the first limit pin 54 as required, thereby achieving the height adjustment of the support plate 2 to meet the needs of different scene tests and improve the operating flexibility of the equipment.

[0021] See also Figure 1-Figure 3 In this solution, a storage device 13 is installed on the top of the fixed base plate 1 and on one side of one of the support sleeves 51, and a battery 14 is installed on the top of the fixed base plate 1 and on one side of the other support sleeve 51.

[0022] A storage cavity is provided inside the storage device 13, and the storage device 13 and the storage cavity facilitate the sealed storage of the required test equipment and items, so that they can be taken out when used. The installed storage battery 14 provides the power resources required for the operation of the equipment.

[0023] See also Figure 4 In this solution, a partition 46 is fixedly connected to the interior of the life test box 4, a sealed test box 43 is fixedly connected to one side of the partition 46, and equidistantly distributed heating tubes 45 are installed inside the sealed test box 43, and a test cover 44 is fixedly connected to the top of the heating tubes 45.

[0024] The test cover 44 and the sealed test box 43 are used to place the automobile chassis or the unassembled automobile chassis, and perform a heating operation through the heating tube 45 to assist in subsequent life test inspection.

[0025] A temperature control chamber 47 is installed on the top of the partition 46, and equidistantly distributed air outlets 48 are opened on the outside of the temperature control chamber 47. A fan and a heating wire are fixedly connected to the inside of the temperature control chamber 47. Two inspection covers 41 are installed on the outside of the life test box 4. Equidistantly distributed control switches 49 are installed on the outside of the life test box 4 and on one side of one of the inspection covers 41. An exhaust fan 42 is installed on the top of the life test box 4. The output end of the exhaust fan 42 is fixedly connected to an exhaust duct, and one end of the exhaust duct extends to the interior of the life test box 4.

[0026] A buzzer is fixedly connected to the top of the life test box 4 and located on one side of the exhaust fan 42. A temperature sensor is fixedly connected to the inside of the life test box 4 and located on the side of the sealed test box 43 away from the inspection cover 41. The temperature sensor is used to detect the temperature change inside the life test box 4 in real time. When it exceeds the preset value, an external buzzer is used for early warning. When it is lower than the preset value, the fan and heating wire inside the temperature control chamber 47 are operated to assist in heating the inside of the life test box 4, so as to facilitate the test and inspection of the high temperature resistance properties of the automobile chassis and the high temperature resistance test of the automobile chassis in the fatigue life test.

[0027] See also Figure 6 In this solution, the top of the top plate 31 is fixedly connected to two first fixed seats 33, and the tops of the two first fixed seats 33 are both installed with limit clamps 34. A connecting shaft 35 is rotatably connected between the two limit clamps 34. Two connecting blocks 36 are installed on the outer side of the connecting shaft 35, and the bottoms of the two connecting blocks 36 are fixedly connected to the corresponding connecting ropes 37.

[0028] A pressure sensor is installed on the inner wall of the collision test plate 39. When the collision test plate 39 hits the chassis of the car, the collision force is detected by the pressure sensor.

[0029] A driving motor 32 is fixedly connected to one side of one of the first fixing seats 33 . The bottom of the driving motor 32 is connected to the mounting top plate 31 via a motor mounting plate. The output end of the driving motor 32 is fixedly connected to one end of the connecting shaft 35 .

[0030] By driving the motor 32, the connecting shaft 35 is driven to rotate, and the two connecting blocks 36 on the outer side of the connecting shaft 35 are driven to rotate to one side under the limit of the limit groove 38, thereby controlling the collision test plate 39 to swing to one side. At this time, the driving motor 32 is controlled to reset, driving the collision test plate 39 to reset. The above operation is repeated, thereby realizing auxiliary knocking treatment on both sides of the placed automobile chassis and performing hardness testing on the automobile chassis in fatigue life testing.

[0031] See also Figure 1-Figure 6 In this solution, a recovery box 11 is fixedly connected to the top of the fixed base plate 1, and the recovery box 11 is located on one side of the life test box 4. A placement table 15 used in conjunction with the life test box 4 is installed on the top of the support plate 2. The placement table 15 is located below the collision test plate 39, and an installation cavity 16 is opened inside the support plate 2 to cooperate with the life test box 4.

[0032] By opening an installation cavity 16 inside the support plate 2 to facilitate the installation of the life test box 4, when the life test box 4 is not in operation or when the collision test plate 39 is needed for auxiliary detection, the placement table 15 is placed on the top of the life test box 4 to cooperate with the automobile chassis placement operation. The recycling box 11 is used for unified recycling of garbage generated during on-site operations, which is convenient for later staff to clean up.

[0033] A control panel 12 is fixedly connected to the outside of the recovery box 11 , and the drive motor 32 , the battery 14 , the exhaust fan 42 , the heating tube 45 , the temperature control chamber 47 and the control switch 49 are all electrically connected to the control panel 12 .

[0034] The control panel 12 is used to control the operation of the battery 14, the drive motor 32, the exhaust fan 42, the heating tube 45, the temperature control chamber 47 and the control switch 49, thereby realizing the unified management of the power equipment.

[0035] See also Figure 1-Figure 6 , the working principle of the present invention: The present invention is provided with a fixed base plate 1, a fixed frame 3 and a life test box 4. When in use, the control panel 12 is opened, and the test cover 44 and the sealed test box 43 are used to place and process the automobile chassis or the unassembled automobile chassis.

[0036] The heating tube 45 is used to perform a heating operation to assist in the subsequent life test.

[0037] A buzzer is fixedly connected to the top of the life test box 4 and located on one side of the exhaust fan 42. A temperature sensor is fixedly connected to the inside of the life test box 4 and located on the side of the sealed test box 43 away from the inspection cover 41. The temperature sensor is used to detect the temperature change inside the life test box 4 in real time. When it exceeds the preset value, an external buzzer is used for early warning. When it is lower than the preset value, the fan and heating wire inside the temperature control chamber 47 are operated to assist in heating the inside of the life test box 4, so as to facilitate the test and inspection of the high temperature resistance properties of the automobile chassis and the high temperature resistance test of the automobile chassis in the fatigue life test.

[0038] A pressure sensor is installed on the inner wall of the collision test plate 39. When the collision test plate 39 hits the chassis of the car, the collision force is detected by the pressure sensor.

[0039] By driving the motor 32, the connecting shaft 35 is driven to rotate, and the two connecting blocks 36 on the outer side of the connecting shaft 35 are driven to rotate to one side under the limit of the limit groove 38, thereby controlling the collision test plate 39 to swing to one side. At this time, the driving motor 32 is controlled to reset, driving the collision test plate 39 to reset. The above operation is repeated, thereby realizing auxiliary knocking treatment on both sides of the placed automobile chassis and performing hardness testing on the automobile chassis in fatigue life testing.

[0040] By opening an installation cavity 16 inside the support plate 2 to facilitate installation of the life test box 4, when the life test box 4 is not in operation or when a collision test plate 39 is needed to assist in detection, the placement table 15 is placed on the top of the life test box 4 to facilitate the placement operation of the automobile chassis.

[0041] The recycling box 11 is used for unified recycling of garbage generated during on-site operations, making it convenient for the staff to clean up later.

[0042] The control panel 12 is used to control the operation of the battery 14, the drive motor 32, the exhaust fan 42, the heating tube 45, the temperature control chamber 47 and the control switch 49, thereby realizing the unified management of the power equipment; The present invention is provided with a supporting and adjusting mechanism 5 and a placing box 6. A storage cavity is opened inside the storage device 13. The storage device 13 and the storage cavity facilitate the sealed storage of the required test equipment and items, so that they can be taken out when used. The installation of a battery 14 provides the power resources required for the operation of the equipment.

[0043] The inside of the two support sleeves 51 are both provided with a slide groove used to cooperate with the support slide bar 52. By turning the corresponding first limit pin 54, the position of the support slide bar 52 inside the support sleeve 51 can be conveniently adjusted until it is re-positioned by the first limit pin 54 as required, thereby achieving the height adjustment of the support plate 2 to meet the needs of different scene tests and improve the operating flexibility of the equipment.

[0044] This enables multiple test processes to be performed during the life test of the automobile chassis, reduces the need for frequent manual transport of the automobile chassis to other work locations for other project inspections, meets the needs of use, and facilitates staff to quickly get started and learn operations.

[0045] 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. A fatigue life test bench for automobile chassis, comprising a fixed base plate (1), characterized in that: Also includes: A support plate (2) is installed on the top of the fixed bottom plate (1); A life test box (4) extending to the top of the support plate (2) is installed on the top of the fixed bottom plate (1); The top of the support plate (2) is fixedly connected to a fixing frame (3), the top of the fixing frame (3) is fixedly connected to a mounting top plate (31), the bottom of the mounting top plate (31) is rotatably connected to two connecting ropes (37), a fixing rope (391) is installed between the two connecting ropes (37), a fixing ring (392) is sleeved on the outside of the fixing rope (391), and a collision test plate (39) is installed at the bottom of the fixing ring (392); A placement box (6) is fixedly connected to the top of the support plate (2), and second limit pins (61) with equal spacing and symmetrical distribution are threadedly connected to both sides of the placement box (6), and a second limit pin (61) with the same structure is installed on the top of the placement box (6), and a placement cavity for matching the second limit pin (61) and the chassis of the automobile is provided on one side of the placement box (6); Two support adjustment mechanisms (5) are installed between the fixed base plate (1) and the support plate (2).

2. The fatigue life test bench for automobile chassis according to claim 1 is characterized in that: The support adjustment mechanism (5) comprises a support sleeve (51) and a support slide bar (52), two support slide bars (52) are installed between the fixed base plate (1) and the support plate (2), the two support sleeves (51) are symmetrically distributed, the two support sleeves (51) are both located on two sides of the life test chamber (4), and both ends of the two support sleeves (51) are slidably connected to the support slide bars (52).

3. The fatigue life test bench for automobile chassis according to claim 2 is characterized in that: The ends of the two support slide bars (52) that are away from each other are fixedly connected to support seats (53), wherein the bottom of one of the support seats (53) is fixedly connected to the fixed bottom plate (1), and the top of the other support seat (53) is fixedly connected to the support plate (2), and one side of the two support sleeves (51) is installed with a first limit pin (54) used in conjunction with the corresponding support slide bar (52).

4. The fatigue life test bench for automobile chassis according to claim 1 is characterized in that: A storage device (13) is installed on the top of the fixed base plate (1) and located on one side of one of the support sleeves (51), and a storage battery (14) is installed on the top of the fixed base plate (1) and located on one side of the other support sleeve (51).

5. The fatigue life test bench for automobile chassis according to claim 4 is characterized in that: A partition (46) is fixedly connected inside the life test box (4), a sealed test box (43) is fixedly connected to one side of the partition (46), and equidistantly distributed heating tubes (45) are installed inside the sealed test box (43), and a test cover (44) is fixedly connected to the top of each heating tube (45).

6. The fatigue life test bench for automobile chassis according to claim 5, characterized in that: A temperature control chamber (47) is installed on the top of the partition (46), and air outlet holes (48) are arranged at equal intervals on the outside of the temperature control chamber (47). A fan and a heating wire are fixedly connected to the inside of the temperature control chamber (47). Two inspection covers (41) are installed on the outside of the life test chamber (4), and control switches (49) are installed on the outside of the life test chamber (4) and on one side of one of the inspection covers (41). An exhaust fan (42) is installed on the top of the life test chamber (4).

7. The fatigue life test bench for automobile chassis according to claim 6, characterized in that: Two first fixing seats (33) are fixedly connected to the top of the mounting top plate (31), and a limit clamp (34) is installed on the top of each of the two first fixing seats (33). A connecting shaft (35) is rotatably connected between the two limit clamps (34), and two connecting blocks (36) are installed on the outer side of the connecting shaft (35), and the bottoms of the two connecting blocks (36) are fixedly connected to corresponding connecting ropes (37).

8. The fatigue life test bench for automobile chassis according to claim 7, characterized in that: A drive motor (32) is fixedly connected to one side of one of the first fixing seats (33); the bottom of the drive motor (32) is connected to the mounting top plate (31) via a motor mounting plate; and the output end of the drive motor (32) is fixedly connected to one end of a connecting shaft (35).

9. The fatigue life test bench for automobile chassis according to claim 8, characterized in that: A recovery box (11) is fixedly connected to the top of the fixed bottom plate (1), a placement table (15) used in conjunction with the life test box (4) is installed on the top of the support plate (2), and an installation cavity (16) for installing in conjunction with the life test box (4) is provided inside the support plate (2).

10. The fatigue life test bench for automobile chassis according to claim 9, characterized in that: A control panel (12) is fixedly connected to the outside of the recovery box (11), and the drive motor (32), the storage battery (14), the exhaust fan (42), the heating tube (45), the temperature control chamber (47) and the control switch (49) are all electrically connected to the control panel (12).

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