A vehicle frame support device and its usage method

Abstract

This invention provides a frame support device and its usage method, belonging to the technical field of crane frame support devices. It includes a steel frame; a rotating frame disposed on the lower side of the steel frame, with an annular pressure pad fixedly connected to the top of the rotating frame; a flap, rotatably connected to the bottom of the rotating frame via a hinge shaft, with support legs rotatably connected to the bottom of the flap via a hinge shaft; and an adjustment mechanism disposed between the steel frame and the rotating frame, thereby enabling the rotating frame to rotate, causing the rotating frame to drive the flap and support legs to rotate. By deflecting multiple support legs, multiple support legs can be distributed at multiple stable support points in complex terrain. Furthermore, by deflecting multiple support legs, it adapts to the needs of working surfaces with large inclination angles, adjusts the overall center of gravity position of the crane, avoids center of gravity shift during crane lifting operations, reduces the risk of crane tipping over, and prevents crane tipping accidents.

Description

Technical Field

[0001] This invention belongs to the technical field of crane frame support devices, specifically relating to a frame support device and its usage method. Background Technology

[0002] Depending on the type of crane and its operating method, the support devices of a crane can be wheels (tires), tracks, or outriggers. These support devices bear vertical reaction forces, i.e., support reaction forces, when the crane is working. After determining the support reaction forces, the corresponding wheel pressure, soil pressure, or outrigger pressure can be further calculated.

[0003] The chassis is one of the main load-bearing structures of a crane and serves as the mounting base for all crane components. As an important part of the crane, the chassis primarily supports and secures all crane components.

[0004] Crane support systems are key components that ensure the stable and safe operation of cranes. These systems are typically designed to support the weight of the crane and prevent it from tipping over or becoming unstable during operation. They are installed at the bottom of the crane frame and consist of fixed outrigger boxes and outriggers.

[0005] The publication number "CN102826466A" describes "a support device and a crane. The support device includes: a lower support, the lower support including a support part; an upper support, the upper support movably supported on the lower support; an elastic element, one end of the elastic element connected to the support part, and the other end of the elastic element connected to the upper support. In this invention, the upper support is movably supported on the lower support. When the component to be supported is subjected to both vertical and horizontal forces due to flexural deformation, the horizontal force pushes the upper support relative to the lower support to move horizontally, so that the component to be supported returns to a state where it is only subjected to vertical forces, thereby preventing further flexural deformation of the component and extending its service life."

[0006] In the aforementioned patent, when the component to be supported is subjected to both vertical and horizontal forces due to flexural deformation, the horizontal force pushes the upper support to move horizontally relative to the lower support, so that the component to be supported returns to a state where it is only subjected to vertical forces. This prevents the component from flexing and extends its service life. However, when the support device installed at the bottom of the frame encounters a work surface with a large inclination angle, the support device, which lacks adjustment function, cannot adapt to the large inclination angle of the work surface and adjust the overall center of gravity of the crane. This makes it very easy for the crane to shift its center of gravity during lifting operations, greatly increasing the risk of the crane tipping over and causing a crane tipping over safety accident. Therefore, we propose a frame support device and its usage method. Summary of the Invention

[0007] The purpose of this invention is to provide a frame support device and its usage method, aiming to solve the technical problem that the existing support devices have insufficient outrigger adjustment function to adapt to the needs of working surfaces with large tilt angles, which easily leads to a sharp increase in the risk of crane tipping over and causes crane tipping safety accidents.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A vehicle frame support device, comprising a steel frame;

[0010] A rotating frame is provided on the lower side of a steel frame, and an annular pressure pad is fixedly connected to the top of the rotating frame.

[0011] A flap, wherein the flap is rotatably connected to the bottom of a rotating frame via a hinge, and the bottom of the flap is rotatably connected to a support leg via a hinge; and

[0012] An adjustment mechanism is provided between the steel frame and the rotating frame. The adjustment mechanism is connected to the flap and is used to move the flap.

[0013] In a preferred embodiment of the present invention, the adjusting mechanism includes a pushing component, a connecting rod component, a rotating component, a hydraulic component, a triggering component, and a buffering component. The pushing component is disposed at the bottom of the steel frame and is connected to the rotating frame. The rotating component is disposed inside the steel frame and is connected to both the pushing component and the rotating frame. The connecting rod component is disposed at the top of the rotating frame and is connected to a flap. The hydraulic component is disposed on one side of the rotating frame and is connected to the flap. The triggering component is disposed inside the steel frame and is connected to the pushing component. The buffering component is disposed inside the steel frame and is connected to both the pushing component and the rotating component.

[0014] In a preferred embodiment of the present invention, the pushing assembly includes a mounting groove, a first sliding groove, a first limiting groove, a first limiting block, a hollow sliding box, a bearing, a sliding sleeve, a first lead screw, a first driven gear, a transmission gear, a first driving gear, a first motor, and a first gear cover. The first sliding groove is located at the bottom of the steel frame, and the hollow sliding box is disposed between the inner walls of the first sliding groove. Two first limiting grooves are provided, located on both sides of the steel frame and connected to the first sliding groove. Two first limiting blocks are provided, sliding within the two first limiting grooves and connected to the hollow sliding box. The first lead screw is rotatably connected between the inner walls of the first sliding groove and penetrates the hollow sliding box. The sliding sleeve is fitted onto the circumferential surface of the first lead screw and is fixedly connected between the inner walls of the hollow sliding box. Two mounting grooves are provided. Two mounting slots are formed on two sides of the steel frame, and the two mounting slots have different depths. One of the two mounting slots is connected to the first sliding groove. The first gear cover is fixedly connected between the first sliding groove and one mounting slot. The first gear cover is sleeved on the circumferential surface of the first lead screw. The first driven gear is fixedly connected to the circumferential surface of the first lead screw, and the first driven gear is located inside the first gear cover. The transmission gear is rotatably connected to the first gear cover through a shaft, and the transmission gear meshes with the first driven gear. The first motor is fixedly connected to the inner wall of the mounting slot, and the output end of the first motor extends into the first gear cover. The first driving gear is fixedly connected to the output end of the first motor, the first driving gear is located inside the first gear cover, and the first driving gear meshes with the transmission gear. The bearing is fixedly installed on the top of the hollow sliding box, and the bearing is connected to the rotating frame.

[0015] In a preferred embodiment of the present invention, the rotating assembly includes a gear slot, a worm gear slot, a first rotating shaft, a third driven gear, a third driving gear, a second rotating shaft, a worm gear, a second driven gear, a second driving gear, a worm, a second motor, and a second gear cover. The gear slot is formed within a steel frame and communicates with a first sliding groove. The worm gear slot is formed within the steel frame. The second gear cover is fixedly connected to the top of the steel frame and communicates with the worm gear slot. The first rotating shaft is rotatably connected between the inner walls of the hollow sliding box, with one end extending to the bottom of the hollow sliding box and the bottom of the first rotating shaft located within a bearing. The second rotating shaft is rotatably connected within the worm gear slot, with the bottom of the second rotating shaft extending into the gear slot. The third driving gear is fixed... A third driving gear is connected to the circumferential surface of the second rotating shaft and is located in a gear groove. A third driven gear is fixedly connected to the circumferential surface of the first rotating shaft and meshes with the third driving gear. A worm gear is fixedly connected to the circumferential surface of the second rotating shaft and is located in a worm gear groove. A worm is rotatably connected to the worm gear groove via a shaft and meshes with the worm gear. A second driven gear is fixedly connected to the side end of the worm. A second motor is fixedly connected to the top of the steel frame and its output end extends to the inner wall of the second gear cover. A second driving gear is fixedly connected to the circumferential surface of the second motor and is located between the inner walls of the second gear cover, meshing with the second driven gear.

[0016] In a preferred embodiment of the present invention, the linkage assembly includes a second sliding groove, a second lead screw, a slider, a second limiting block, a push-pull rod, a first adapter block, a motor slot, a second limiting groove, and a third motor. The second sliding groove is located at the bottom of the rotating frame, and the motor slot is located at the bottom of the rotating frame. The third motor is fixedly connected to the inner wall of the motor slot. The second lead screw is rotatably connected to the inner wall of the second sliding groove, with one end of the second lead screw extending into the third motor and the extended end of the second lead screw being fixedly connected to the output end of the third motor. The slider is sleeved on the circumferential surface of the second lead screw and slides within the second sliding groove. Two second limiting grooves are provided, each located on the inner wall of the second sliding groove. Two second limiting blocks are provided, each sliding within the two second limiting grooves and connected to the slider. The first adapter block is fixedly connected to the top of the flip plate. One end of the push-pull rod is rotatably connected to the slider via a hinge, and the other end of the push-pull rod is rotatably connected to the first adapter block.

[0017] In a preferred embodiment of the present invention, the hydraulic assembly includes an adapter frame, a hydraulic rod, and a second adapter block. The adapter frame is fixedly connected to one end of the rotating frame, and the second adapter block is fixedly connected to the top of the flap. The adapter frame is rotatably connected inside the adapter frame via a shaft, and the output end of the hydraulic rod is rotatably connected to the second adapter block.

[0018] As a preferred embodiment of the present invention, the buffer assembly includes a buffer pad and an arc-shaped buffer pad. The arc-shaped buffer pad is fixedly connected between the gear groove and the first slide groove. Two buffer pads are provided, and the two buffer pads are fixedly connected to the two sides of the hollow slide box. The two buffer pads are located in the first slide groove.

[0019] In a preferred embodiment of the present invention, the triggering component includes an infrared laser head, which is fixedly connected to the side end of the hollow slide box and is located in the first slide groove.

[0020] As a preferred embodiment of the present invention, another of the mounting slots is fixedly connected to a running terminal.

[0021] A method of using a vehicle frame support device includes the following steps:

[0022] S1, Stretch:

[0023] Multiple sets of support devices are symmetrically distributed and installed at the bottom of the crane frame. When the four legs need to be extended, multiple first motors are started by powering on. The output ends of the multiple first motors drive multiple first drive gears to rotate. The multiple first drive gears drive multiple transmission gears to rotate through meshing with multiple transmission gears. The multiple transmission gears drive multiple first driven gears to rotate through meshing with multiple first driven gears. The multiple first driven gears drive multiple first lead screws to rotate. The multiple first lead screws push multiple hollow slide boxes to slide in multiple first slide grooves through sliding cooperation with multiple sliding sleeves. The multiple hollow slide boxes drive multiple rotating frames, multiple legs, multiple flip plates, multiple first rotating shafts, multiple hollow slide boxes, multiple sets of connecting rod assemblies, and multiple sets of pneumatic assemblies to move longitudinally, thereby realizing the extension of multiple rotating frames, multiple legs, and multiple flip plates from the bottom of multiple steel frames.

[0024] S2, Deflection:

[0025] After the rotating frame, legs, and flaps are extended, multiple second motors are activated by power. The outputs of these motors drive multiple second drive gears to rotate. These drive gears, through meshing with multiple driven gears, drive multiple driven gears to rotate. These driven gears then drive multiple worm gears to rotate. The worm gears, through meshing with multiple worm wheels, drive multiple worm wheels to rotate. These worm wheels then drive multiple second rotating shafts to rotate. These second rotating shafts drive multiple third drive gears to rotate. These third drive gears, through meshing with multiple driven gears, drive multiple driven gears to rotate. These driven gears then drive multiple first rotating shafts to rotate. These first rotating shafts then drive multiple rotating frames to rotate, thereby rotating the multiple rotating frames. This, in turn, causes the multiple rotating frames to rotate multiple flaps and legs, thus deflecting the multiple legs.

[0026] S3, Hydraulic support:

[0027] While multiple outriggers are deflected, multiple third motors are started. The output ends of the multiple third motors drive multiple second lead screws to rotate. The multiple second lead screws slide in multiple second slide grooves through sliding cooperation with multiple sliders. This causes multiple sliders to push multiple push-pull rods, which in turn push multiple flip plates to press down, thus bringing multiple outriggers into contact with the ground. At the same time, multiple adapter frames and multiple third motors start synchronously. The output ends of the multiple adapter frames extend to push multiple second adapter blocks. The multiple adapter frames generate hydraulic thrust to support the deflection between the rotating frame and the flip plates. The multiple adapter frames then provide hydraulic support for the crane frame.

[0028] S4, Adaptive Support:

[0029] When operating on complex terrain, the crane can find flat support points on the complex terrain by simultaneously deploying extension, deflection, and hydraulic supports. At the same time, different hydraulic supports are used to keep the frame level and lower the center of gravity of the crane, so that the crane can adapt to complex terrain and achieve self-adaptive support.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] (1) In this scheme, when the outriggers are deflected in a single support device, the second motor is started by powering on. The output end of the second motor drives the second drive gear to rotate. The second drive gear drives the second driven gear to rotate through meshing with the second driven gear. The second driven gear drives the worm to rotate. The worm drives the worm wheel to rotate through meshing with the worm wheel. The worm wheel drives the second rotating shaft to rotate. The second rotating shaft drives the third drive gear to rotate. The third drive gear drives the third driven gear to rotate through meshing with the third driven gear. The third driven gear drives the first rotating shaft to rotate. The first rotating shaft drives the rotating frame to rotate, thereby rotating the rotating frame. This causes the rotating frame to drive the flip plate and outriggers to rotate. By deflecting multiple outriggers, multiple outriggers can be distributed in multiple stable support points in complex terrain. By deflecting multiple outriggers, the system can adapt to the needs of working surfaces with large inclination angles, adjust the overall center of gravity of the crane, avoid the center of gravity shift of the crane during lifting operations, reduce the risk of crane tipping over, and prevent the occurrence of crane tipping accidents.

[0032] (2) In this scheme, when the legs of a single support device move longitudinally, the first motor is started by powering on. The output end of the first motor drives the first drive gear to rotate. The first drive gear drives the transmission gear to rotate through meshing with the transmission gear. Multiple transmission gears drive the first driven gear to rotate through meshing with the first driven gear. The first driven gear drives the first lead screw to rotate. The first lead screw pushes the hollow slide box to slide in the first slide groove through sliding cooperation with the sliding sleeve. The hollow slide box drives the rotating frame, legs, flap, first rotating shaft, hollow slide box, connecting rod assembly and pneumatic assembly to move longitudinally, thereby realizing the extension of the rotating frame, legs and flap from the bottom of the steel frame and pushing the legs out from the bottom of the frame. When multiple sets of frame support devices are installed at the bottom of the crane frame, the center of gravity of the crane is lowered by increasing the distance between multiple legs, thereby improving the stability of the crane.

[0033] (3) In this scheme, during the lifting and lowering of multiple outriggers, multiple third motors are started by powering on. The output ends of the multiple third motors drive multiple second lead screws to rotate. The multiple second lead screws slide in multiple second slide grooves through sliding cooperation with multiple sliders. This causes multiple sliders to push and pull multiple push-pull rods, which in turn push and pull multiple flip plates to lift and lower. This causes multiple outriggers to be in contact with or away from the ground, so that the frame support device can quickly contact the ground to support the frame or release the frame support. Multiple sets of linkage components facilitate the quick and easy unfolding of multiple outriggers to support the frame, accelerate the rapid support of the crane frame at the work site, and improve the unfolding operation efficiency of the crane on-site construction.

[0034] (4) In this scheme, the adapter frame is used to support the hydraulic rods, the hydraulic rods are used to synchronously push the second adapter block to move, the second adapter block is used to drive the flip plate to rotate synchronously, and the hydraulic pressure generated by multiple hydraulic rods is used to assist in supporting multiple flip plates, thereby maintaining the stable support of multiple legs for multiple flip plates and multiple rotating frames. By using multiple hydraulic rods to assist in supporting the flip plates, the pressure borne by the flip plates is distributed into three streams, thereby reducing the deformation of the flip plates and rotating frames and improving the stress stability of the frame support device. Attached Figure Description

[0035] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0036] Figure 1 This is a first-view perspective view of a vehicle frame support device according to the present invention;

[0037] Figure 2 This is a second perspective view of a vehicle frame support device according to the present invention;

[0038] Figure 3 This is a first-view half-sectional view of a vehicle frame support device according to the present invention;

[0039] Figure 4 This is a second perspective view of a half-sectional view of a vehicle frame support device according to the present invention;

[0040] Figure 5 This is a full sectional view of a vehicle frame support device according to the present invention;

[0041] Figure 6 This is a disassembly diagram of a vehicle frame support device according to the present invention;

[0042] Figure 7 This is a half-sectional view of the hydraulic assembly and linkage assembly of a vehicle frame support device according to the present invention;

[0043] Figure 8 This is an exploded view of the hydraulic components and connecting rod components of a vehicle frame support device according to the present invention;

[0044] Figure 9 This is a first half-sectional view of the rotating assembly, pushing assembly, triggering assembly, and buffer assembly of a vehicle frame support device according to the present invention;

[0045] Figure 10 This is a second half-sectional view of the rotating assembly, pushing assembly, triggering assembly, and buffer assembly of a vehicle frame support device according to the present invention;

[0046] Figure 11 This is an exploded view of the rotating assembly, pushing assembly, triggering assembly, and buffer assembly of a vehicle frame support device according to the present invention;

[0047] Figure 12 This is a third half-sectional view of the rotating assembly, pushing assembly, triggering assembly, and buffer assembly of a vehicle frame support device according to the present invention.

[0048] In the diagram: 1. Steel frame; 2. Rotating frame; 3. Support leg; 4. Flip plate; 5. First limiting groove; 6. First limiting block; 7. Hollow slide box; 8. Bearing; 9. Sliding sleeve; 10. Buffer pad; 11. Infrared laser head; 12. First lead screw; 13. First driven gear; 14. Transmission gear; 15. First driving gear; 16. First motor; 17. First gear cover; 18. Gear groove; 19. Worm gear groove; 20. First rotating shaft; 21. Third driven gear; 22. Third driving gear; 23. Arc-shaped buffer pad; 24. 25. Second rotating shaft; 26. Worm gear; 27. Second driven gear; 28. Second driving gear; 29. ​​Worm; 30. Second motor; 31. Second gear cover; 32. Running terminal; 33. Mounting groove; 34. Annular pressure pad; 35. Second lead screw; 36. Slider; 37. Second limit block; 38. Push-pull rod; 39. First adapter block; 40. Adapter frame; 41. Hydraulic rod; 42. Second adapter block; 43. First slide groove; 44. Third motor; 45. Second limit groove; 46. Motor groove. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] Example 1

[0051] Reference Figure 1 - Figure 12 This embodiment 1 provides a vehicle frame support device, which includes:

[0052] Steel frame 1;

[0053] Rotating frame 2 is located on the lower side of steel frame 1, and an annular pressure pad 33 is fixedly connected to the top of rotating frame 2;

[0054] Flip plate 4 is rotatably connected to the bottom of rotating frame 2 via a hinge shaft, and the bottom of flip plate 4 is rotatably connected to support leg 3 via a hinge shaft; and

[0055] An adjustment mechanism is located between the steel frame 1 and the rotating frame 2. The adjustment mechanism is connected to the flap 4 and is used to move the flap 4.

[0056] In this invention, the steel frame 1 is used to support the rotating component, the pushing component, and the operating terminal 31; the rotating frame 2 is used to support the connecting rod component, the hydraulic component, and the flip plate 4; the annular bearing pad 33 is used to prevent dust and moisture from oxidizing and corroding the parts between the steel frame 1 and the rotating frame 2 after the steel frame 1 and the rotating frame 2 are aligned vertically; the support leg 3 is used to support the flip plate 4; and the adjustment mechanism is connected to the flip plate 4 to move the flip plate 4.

[0057] Specifically, the adjustment mechanism includes a pushing assembly, a connecting rod assembly, a rotating assembly, a hydraulic assembly, a triggering assembly, and a buffering assembly. The pushing assembly is located at the bottom of the steel frame 1 and is connected to the rotating frame 2. The rotating assembly is located inside the steel frame 1 and is connected to both the pushing assembly and the rotating frame 2. The connecting rod assembly is located at the top of the rotating frame 2 and is connected to the flip plate 4. The hydraulic assembly is located on one side of the rotating frame 2 and is connected to the flip plate 4. The triggering assembly is located inside the steel frame 1 and is connected to the pushing assembly. The buffering assembly is located inside the steel frame 1 and is connected to both the pushing assembly and the rotating assembly.

[0058] In this invention, the pushing component is used to move the rotating frame 2, the support leg 3 and the flip plate 4 longitudinally, thereby extending the extension distance of the support leg 3; the rotating component is used to deflect the rotating frame 2, the support leg 3 and the flip plate 4, thereby controlling the deflection range of the support leg 3; the connecting rod component is used to push the support leg 3 to contact the working ground; the triggering component is used to calibrate the extension distance of the support leg 3; the buffer component is used to offset the impact force generated by the movement of the hollow slide box 7, the rotating frame 2, the support leg 3 and the flip plate 4; and the hydraulic component is used to assist in supporting the support leg 3.

[0059] In one specific embodiment, the pushing assembly includes a mounting groove 32, a first sliding groove 43, a first limiting groove 5, a first limiting block 6, a hollow sliding box 7, a bearing 8, a sliding sleeve 9, a first lead screw 12, a first driven gear 13, a transmission gear 14, a first driving gear 15, a first motor 16, and a first gear cover 17. The first sliding groove 43 is formed at the bottom of the steel frame 1, and the hollow sliding box 7 is disposed between the inner walls of the first sliding groove 43. Two first limiting grooves 5 are provided, and the two first limiting grooves 5 are formed at... On both sides of the steel frame 1, two first limiting grooves 5 are connected to the first sliding groove 43. Two first limiting blocks 6 are provided, and the two first limiting blocks 6 slide within the two first limiting grooves 5. Both first limiting blocks 6 are connected to the hollow sliding box 7. The first lead screw 12 is rotatably connected between the inner walls of the first sliding groove 43 and passes through the hollow sliding box 7. The sliding sleeve 9 is fitted onto the circumferential surface of the first lead screw 12 and is fixedly connected between the inner walls of the hollow sliding box 7. Two mounting grooves 32 are provided. Two mounting slots 32 are formed at the two sides of the steel frame 1, and the two mounting slots 32 have different depths. One of the mounting slots 32 is connected to the first sliding groove 43. The first gear cover 17 is fixedly connected between the first sliding groove 43 and the mounting slot 32. The first gear cover 17 is sleeved on the circumferential surface of the first lead screw 12. The first driven gear 13 is fixedly connected to the circumferential surface of the first lead screw 12 and is located inside the first gear cover 17. The transmission gear 14 is rotatably connected to the first gear cover 17 through a shaft and meshes with the first driven gear 13. The first motor 16 is fixedly connected to the inner wall of the mounting slot 32, and the output end of the first motor 16 extends into the first gear cover 17. The first driving gear 15 is fixedly connected to the output end of the first motor 16 and is located inside the first gear cover 17. The first driving gear 15 meshes with the transmission gear 14. The bearing 8 is fixedly installed on the top of the hollow sliding box 7 and is connected to the rotating frame 2.

[0060] In this invention, the first slide groove 43 accommodates the first lead screw 12, the hollow slide box 7, and the first motor 16. The hollow slide box 7 accommodates the first rotating shaft 20 and the sliding sleeve 9. The two first limiting grooves 5 accommodate the sliding of the two first limiting blocks 6. The two first limiting blocks 6 guide the movement of the hollow slide box 7 through sliding engagement with multiple first limiting blocks 6. The first lead screw 12 pushes the hollow slide box 7 to move through sliding engagement with the sliding sleeve 9. The two mounting grooves 32 accommodate the running terminal 31 and the first motor 16. The first gear cover 17 accommodates the first driven gear 13, the transmission gear 14, and the first driving gear 15. The first driven gear 13 drives the first lead screw 12 to rotate. The transmission gear 14 drives the first driven gear 13 to rotate through meshing with the first driven gear 13. The first driving gear 15 drives the transmission gear 14 to rotate through meshing with the transmission gear 14. The first motor 16 drives the first driving gear 15 to rotate. The bearing 8 provides support. When the rotating frame 2 rotates and the leg 3 moves longitudinally in a single support device, the first motor 16 is started by power. The output end of the first motor 16 drives the first drive gear 15 to rotate. The first drive gear 15 drives the transmission gear 14 to rotate through meshing with the transmission gear 14. Multiple transmission gears 14 drive the first driven gear 13 to rotate through meshing with the first driven gear 13. The first driven gear 13 drives the first lead screw 12 to rotate. The first lead screw 12 pushes the hollow slide box 7 to slide in the first slide groove 43 through sliding cooperation with the sliding sleeve 9. The hollow slide box 7 drives the rotating frame 2, leg 3, flap 4, first rotating shaft 20, hollow slide box 7, connecting rod assembly and pneumatic assembly to move longitudinally, thereby realizing the extension of the rotating frame 2, leg 3 and flap 4 from the bottom of the steel frame 1, pushing the leg 3 out from the bottom of the frame. When multiple sets of frame support devices are installed at the bottom of the crane frame, the center of gravity of the crane is lowered and the stability of the crane is improved by increasing the distance between multiple legs 3.

[0061] Example 2

[0062] Based on implementation 1, this embodiment 2 provides a specific preferred embodiment. Specifically, the rotating assembly includes a gear groove 18, a worm gear groove 19, a first rotating shaft 20, a third driven gear 21, a third driving gear 22, a second rotating shaft 24, a worm gear 25, a second driven gear 26, a second driving gear 27, a worm 28, a second motor 29, and a second gear cover 30. The gear groove 18 is formed inside the steel frame 1 and is connected to the first sliding groove 43. The worm gear groove 19 is formed inside the steel frame 1. The second gear cover 30 is fixedly connected to the top of the steel frame 1 and is connected to the worm gear groove 19. The first rotating shaft 20 is rotatably connected between the inner walls of the hollow sliding box 7, with one end of the first rotating shaft 20 extending to the bottom of the hollow sliding box 7, and the bottom of the first rotating shaft 20 located inside the bearing 8. The second rotating shaft 24 is rotatably connected to the worm gear groove 19, and the bottom of the second rotating shaft 24 extends to the gear. Inside the slot 18, the third driving gear 22 is fixedly connected to the circumferential surface of the second rotating shaft 24 and is located inside the gear slot 18. The third driven gear 21 is fixedly connected to the circumferential surface of the first rotating shaft 20 and meshes with the third driving gear 22. The worm gear 25 is fixedly connected to the circumferential surface of the second rotating shaft 24 and is located inside the worm gear slot 19. The worm 28 is rotatably connected to the worm gear slot 19 via a shaft and meshes with the worm gear 25. The second driven gear 26 is fixedly connected to the side end of the worm 28. The second motor 29 is fixedly connected to the top of the steel frame 1 and its output end extends to the inner wall of the second gear cover 30. The second driving gear 27 is fixedly connected to the circumferential surface of the second motor 29 and is located inside the inner wall of the second gear cover 30. The second driving gear 27 meshes with the second driven gear 26.

[0063] In this invention, gear groove 18 is used to accommodate the third driven gear 21 and the third driving gear 22, worm gear groove 19 is used to accommodate the worm gear 25 and the worm 28, second gear cover 30 is used to accommodate the second driving gear 27 and the second driven gear 26, first rotating shaft 20 is used to support and fix the third driven gear 21, second rotating shaft 24 is used to support and fix the third driving gear 22 and the worm gear 25, the third driving gear 22 drives the third driven gear 21 through meshing with the third driven gear 21, and the worm gear 25 drives... The second shaft 24 rotates, and the worm gear 28 drives the worm wheel 25 to rotate through meshing with it. The second motor 29 drives the second driving gear 27 to rotate. The second driving gear 27 drives the second driven gear 26 to rotate through meshing with it. When the support leg 3 is deflected in the single support device, the second motor 29 is energized and started. The output of the second motor 29 drives the second driving gear 27 to rotate. The second driving gear 27 drives the second driven gear 26 to rotate through meshing with it. The meshing of gear 6 drives the second driven gear 26 to rotate, which in turn drives the worm gear 28 to rotate. The worm gear 28, through meshing with the worm wheel 25, drives the worm wheel 25 to rotate, which in turn drives the second rotating shaft 24 to rotate. The second rotating shaft 24 drives the third driving gear 22 to rotate, which in turn drives the third driven gear 21 to rotate. The third driven gear 21, through meshing with the third driven gear 21, drives the first rotating shaft 20 to rotate, which in turn drives the rotating frame 2 to rotate. This rotation of the rotating frame 2 causes the flip plate 4 and the support legs 3 to rotate. By deflecting the multiple support legs 3, the multiple support legs 3 can be distributed at multiple stable support points in complex terrain. Furthermore, by deflecting the multiple support legs 3, the crane can adapt to the needs of working surfaces with large inclination angles, adjust the overall center of gravity of the crane, avoid center of gravity shift during lifting operations, reduce the risk of crane tipping over, and prevent crane tipping accidents.

[0064] In one specific embodiment, the linkage assembly includes a second slide groove 34, a second lead screw 35, a slider 36, a second limiting block 37, a push-pull rod 38, a first adapter block 39, a motor slot 46, a second limiting slot 45, and a third motor 44. The second slide groove 34 is located at the bottom of the rotating frame 2, the motor slot 46 is located at the bottom of the rotating frame 2, the third motor 44 is fixedly connected to the inner wall of the motor slot 46, and the second lead screw 35 is rotatably connected to the inner wall of the second slide groove 34. One end of the second lead screw 35 extends into the third motor 44, and the extended end of the second lead screw 35 is connected to the third motor 44. The output end is fixedly connected. The slider 36 is sleeved on the circumferential surface of the second lead screw 35, and the slider 36 slides in the second groove 34. There are two second limiting grooves 45, which are opened on the inner wall of the second groove 34. There are two second limiting blocks 37, which slide in the two second limiting grooves 45. Both second limiting blocks 37 are connected to the slider 36. The first adapter block 39 is fixedly connected to the top of the flip plate 4. One end of the push-pull rod 38 is rotatably connected to the slider 36 through a hinge shaft, and the other end of the push-pull rod 38 is rotatably connected to the first adapter block 39.

[0065] In this invention, the second slide groove 34 accommodates the second lead screw 35 and the slider 36, the motor groove 46 accommodates the third motor 44, and the third motor 44 drives the second lead screw 35 to rotate. The second lead screw 35 pushes the slider 36 to move through sliding engagement with the slider 36. The two second limiting grooves 45 accommodate the sliding of the two second limiting blocks 37. The two second limiting blocks 37 guide the movement of the slider 36 through sliding engagement with the two second limiting grooves 45. The first transition block 39 pushes and pulls the flip plate 4, and the push-pull rod 38 pushes the first transition block 39 to rise and fall. Then, by deflecting the flip plate 4 up and down, the support legs 3 are pressed down and raised. During the raising and lowering process of multiple support legs 3... In the process, multiple third motors 44 are started by powering on. The output ends of the multiple third motors 44 drive multiple second lead screws 35 to rotate. The multiple second lead screws 35 slide within multiple second slide grooves 34 through sliding cooperation with multiple sliders 36. This causes the multiple sliders 36 to push and pull multiple push-pull rods 38, which in turn push and pull multiple flip plates 4 to rise and fall. This allows multiple support legs 3 to be brought into contact with or removed from the ground, enabling the frame support device to quickly bring into contact with or release the frame support. Multiple sets of linkage components facilitate the quick deployment of multiple support legs 3 to support the frame, accelerating the rapid support of the crane frame at the work site and improving the deployment efficiency of the crane on-site construction.

[0066] In one specific embodiment, the hydraulic assembly includes an adapter frame 40, a hydraulic rod 41, and a second adapter block 42. The adapter frame 40 is fixedly connected to one end of the rotating frame 2, and the second adapter block 42 is fixedly connected to the top of the flap 4. The adapter frame 40 is rotatably connected to the inside of the adapter frame 40 via a shaft, and the output end of the hydraulic rod 41 is rotatably connected to the second adapter block 42.

[0067] In this invention, the adapter frame 40 is used to support the hydraulic rods 41, the hydraulic rods 41 are used to synchronously push the second adapter block 42 to move, and the second adapter block 42 is used to drive the flaps 4 to rotate synchronously. The hydraulic pressure generated by the multiple hydraulic rods 41 is used to assist in supporting the multiple flaps 4, thereby maintaining the stable support of the multiple legs 3 on the multiple flaps 4 and the multiple rotating frames 2. By using the multiple hydraulic rods 41 to provide auxiliary support for the flaps 4, the pressure on the flaps 4 is distributed into three streams, thereby reducing the deformation of the flaps 4 and the rotating frames 2 and improving the stress stability of the frame support device.

[0068] In one specific embodiment, the buffer assembly includes a buffer pad 10 and an arc-shaped buffer pad 23. The arc-shaped buffer pad 23 is fixedly connected between the gear groove 18 and the first slide groove 43. Two buffer pads 10 are provided, and the two buffer pads 10 are fixedly connected to the two side ends of the hollow slide box 7. The two buffer pads 10 are located in the first slide groove 43.

[0069] In this invention, the arc-shaped buffer pad 23 is used to buffer the first rotating shaft 20, and the two buffer pads 10 are used to buffer the collision between the hollow slide box 7 and the inner wall of the first slide groove 43. Then, the arc-shaped buffer pad 23 and the two buffer pads 10 are used to buffer the movement of the hollow slide box 7.

[0070] In one specific embodiment, the triggering component includes an infrared laser head 11, which is fixedly connected to the side end of the hollow slide box 7 and is located in the first slide groove 43.

[0071] In this invention, the infrared laser head 11 emits infrared laser light to detect the moving distance of the hollow sliding box 7 in real time.

[0072] The operating terminal 31 is fixedly connected in another mounting slot 32.

[0073] In this invention, the operating terminal 31 is electrically connected to the infrared laser head 11, the first motor 16, the second motor 29, and the third motor 44. The operation of the vehicle frame support device is supported by the operating program stored in the built-in storage unit of the operating terminal 31. This invention does not involve any optimization or improvement of the operating terminal 31. The operating terminal 31 is a mature device in the prior art, and its specific composition and working principle will not be further described here.

[0074] Example 3

[0075] This embodiment 3 provides a method for using a vehicle frame support device, to further illustrate the method of using the vehicle frame support device described in embodiments 1 and 2 in detail:

[0076] A method of using a vehicle frame support device includes the following steps:

[0077] S1, Stretch:

[0078] Multiple sets of support devices are symmetrically distributed and installed at the bottom of the crane frame. When the four legs 3 need to be extended, multiple first motors 16 are started by powering on. The output ends of the multiple first motors 16 drive multiple first drive gears 15 to rotate. The multiple first drive gears 15 drive multiple transmission gears 14 to rotate through meshing with multiple transmission gears 14. The multiple transmission gears 14 drive multiple first driven gears 13 to rotate through meshing with multiple first driven gears 13. The multiple first driven gears 13 drive multiple first lead screws 12 to rotate. The multiple first lead screws 12 push multiple hollow slide boxes 7 to slide in multiple first slide grooves 43 through sliding cooperation with multiple sliding sleeves 9. The multiple hollow slide boxes 7 drive multiple rotating frames 2, multiple legs 3, multiple flip plates 4, multiple first rotating shafts 20, multiple hollow slide boxes 7, multiple sets of connecting rod assemblies and multiple sets of pneumatic assemblies to move longitudinally, thereby realizing the extension of multiple rotating frames 2, multiple legs 3 and multiple flip plates 4 from the bottom of multiple steel frames 1.

[0079] S2, Deflection:

[0080] When the rotating frame 2, the support legs 3, and the flip plate 4 are extended, multiple second motors 29 are started by powering on. The output ends of the multiple second motors 29 drive multiple second drive gears 27 to rotate. The multiple second drive gears 27 drive multiple second driven gears 26 to rotate through meshing with multiple second driven gears 26. The multiple second driven gears 26 drive multiple worm gears 28 to rotate. The multiple worm gears 28 drive multiple worm wheels 25 to rotate through meshing with multiple worm wheels 25. The multiple worm wheels 25 drive multiple second rotating shafts 24 to rotate. The multiple second rotating shafts 24 drive multiple third drive gears 22 to rotate. The multiple third drive gears 22 drive multiple third driven gears 21 to rotate through meshing with multiple third driven gears 21. The multiple third driven gears 21 drive multiple first rotating shafts 20 to rotate. The multiple first rotating shafts 20 drive multiple rotating frames 2 to rotate, thereby rotating the multiple rotating frames 2. This causes the multiple rotating frames 2 to drive multiple flip plates 4 and multiple support legs 3 to rotate, thus deflecting the multiple support legs 3.

[0081] S3, Hydraulic support:

[0082] While the multiple support legs 3 are deflected, multiple third motors 44 are started by power. The output ends of the multiple third motors 44 drive multiple second lead screws 35 to rotate. The multiple second lead screws 35 slide in multiple second slide grooves 34 through sliding cooperation with multiple sliders 36. This causes the multiple sliders 36 to push multiple push-pull rods 38, which in turn push multiple flip plates 4 to press down, thus bringing the multiple support legs 3 into contact with the ground. At the same time, multiple adapter frames 40 and multiple third motors 44 are started synchronously. The output ends of the multiple adapter frames 40 extend to push multiple second adapter blocks 42. The multiple adapter frames 40 generate hydraulic thrust to support the deflection between the rotating frame 2 and the flip plate 4. The multiple adapter frames 40 then provide hydraulic support for the crane frame.

[0083] S4, Adaptive Support:

[0084] When the crane operates on complex terrain, the simultaneous activation of extension, deflection, and hydraulic support allows multiple outriggers 3 to find flat support points on the complex terrain. At the same time, different hydraulic supports are used to keep the frame level and lower the center of gravity of the crane, enabling the crane to adapt to complex terrain and achieve self-adaptive support.

[0085] The present invention has the following beneficial technical effects:

[0086] (1) It can adapt to the needs of working surfaces with large inclination angles, adjust the overall center of gravity of the crane, avoid the center of gravity shift when the crane is lifting, reduce the risk of the crane tipping over, and prevent the occurrence of a crane tipping over safety accident.

[0087] (2) The center of gravity of the crane can be lowered and the stability of the crane can be improved by increasing the distance between multiple outriggers;

[0088] (3) The support frame can be easily and quickly deployed with multiple legs through multiple sets of linkage components, which can accelerate the rapid support of the crane frame at the work site and improve the deployment efficiency of the crane on-site construction.

[0089] (4) Multiple hydraulic rods can be used to provide auxiliary support for the flap, which can distribute the pressure on the flap into three streams, thereby reducing the deformation of the flap and the rotating frame and improving the stress stability of the frame support device.

[0090] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle frame support device, characterized in that, include; Steel frame (1); Rotating frame (2), the rotating frame (2) is located on the lower side of the steel frame (1), and an annular pressure pad (33) is fixedly connected to the top of the rotating frame (2); A flap (4) is rotatably connected to the bottom of a rotating frame (2) via a hinge shaft, and a support leg (3) is rotatably connected to the bottom of the flap (4) via a hinge shaft; and An adjustment mechanism is provided between the steel frame (1) and the rotating frame (2). The adjustment mechanism is connected to the flap (4) and is used to move the flap (4). The adjustment mechanism includes a pushing component, a connecting rod component, a rotating component, a hydraulic component, a triggering component, and a buffering component. The pushing component is located at the bottom of the steel frame (1) and is connected to the rotating frame (2). The rotating component is located inside the steel frame (1) and is connected to the pushing component and the rotating frame (2). The connecting rod component is located at the top of the rotating frame (2) and is connected to the flip plate (4). The hydraulic component is located on one side of the rotating frame (2) and is connected to the flip plate (4). The triggering component is located inside the steel frame (1) and is connected to the pushing component. The buffering component is located inside the steel frame (1) and is connected to the pushing component and the rotating component. The pushing assembly includes a mounting groove (32), a first sliding groove (43), a first limiting groove (5), a first limiting block (6), a hollow sliding box (7), a bearing (8), a sliding sleeve (9), a first lead screw (12), a first driven gear (13), a transmission gear (14), a first driving gear (15), a first motor (16), and a first gear cover (17). The first sliding groove (43) is located at the bottom of the steel frame (1). The hollow sliding box (7) is located between the inner walls of the first sliding groove (43). There are two first limiting grooves (5), which are located on both sides of the steel frame (1). The first limiting groove (5) is connected to the first sliding groove (43). There are two first limiting blocks (6), which slide in the two first limiting grooves (5). Both first limiting blocks (6) are connected to the hollow sliding box (7). The first lead screw (12) is rotatably connected to the inner wall of the first sliding groove (43) and passes through the hollow sliding box (7). The sliding sleeve (9) is fitted on the circumferential surface of the first lead screw (12) and is fixedly connected to the inner wall of the hollow sliding box (7). There are two mounting grooves (32). (32) is opened at two side ends of the steel frame (1), and the two mounting grooves (32) have different depths. One of the mounting grooves (32) is connected to the first sliding groove (43). The first gear cover (17) is fixedly connected between the first sliding groove (43) and the mounting groove (32). The first gear cover (17) is sleeved on the circumferential surface of the first lead screw (12). The first driven gear (13) is fixedly connected to the circumferential surface of the first lead screw (12), and the first driven gear (13) is located inside the first gear cover (17). The transmission gear (14) is rotatably connected to the first lead screw (12) through a shaft. Inside the gear cover (17), the transmission gear (14) meshes with the first driven gear (13). The first motor (16) is fixedly connected to the inner wall of the mounting groove (32), and the output end of the first motor (16) extends into the first gear cover (17). The first driving gear (15) is fixedly connected to the output end of the first motor (16). The first driving gear (15) is located inside the first gear cover (17), and the first driving gear (15) meshes with the transmission gear (14). The bearing (8) is fixedly installed on the top of the hollow slide box (7), and the bearing (8) is connected to the rotating frame (2).

2. The vehicle frame support device according to claim 1, characterized in that, The rotating assembly includes a gear groove (18), a worm gear groove (19), a first rotating shaft (20), a third driven gear (21), a third driving gear (22), a second rotating shaft (24), a worm gear (25), a second driven gear (26), a second driving gear (27), a worm (28), a second motor (29), and a second gear cover (30). The gear groove (18) is formed within the steel frame (1) and is connected to the first sliding groove (43). The worm gear groove (19) is formed within the steel frame (1). The second gear cover (30) is fixedly connected to the top of the steel frame (1). The second gear cover (30) is connected to the worm gear groove (19). The first rotating shaft (20) is rotatably connected to the inner wall of the hollow slide box (7). One end of the first rotating shaft (20) extends to the bottom of the hollow slide box (7), and the bottom of the first rotating shaft (20) is located in the bearing (8). The second rotating shaft (24) is rotatably connected to the worm gear groove (19), and the bottom of the second rotating shaft (24) extends into the gear groove (18). The third driving gear (22) The third driving gear (22) is fixedly connected to the circumferential surface of the second rotating shaft (24), and the third driven gear (21) is located in the gear groove (18). The third driven gear (21) is fixedly connected to the circumferential surface of the first rotating shaft (20), and the third driven gear (21) meshes with the third driving gear (22). The worm gear (25) is fixedly connected to the circumferential surface of the second rotating shaft (24), and the worm gear (25) is located in the worm gear groove (19). The worm (28) is rotatably connected to the worm gear groove (19) through a shaft, and the worm (28) is fixedly connected to the circumferential surface of the second rotating shaft (24), and the third driven gear (21) meshes with the third driving gear (22). The second driven gear (26) is fixedly connected to the side end of the worm (28), the second motor (29) is fixedly connected to the top of the steel frame (1), and the output end of the second motor (29) extends to the inner wall of the second gear cover (30). The second driving gear (27) is fixedly connected to the circumferential surface of the second motor (29), the second driving gear (27) is located between the inner walls of the second gear cover (30), and the second driving gear (27) meshes with the second driven gear (26).

3. A vehicle frame support device according to claim 2, characterized in that, The linkage assembly includes a second slide groove (34), a second lead screw (35), a slider (36), a second limiting block (37), a push-pull rod (38), a first adapter block (39), a motor slot (46), a second limiting slot (45), and a third motor (44). The second slide groove (34) is located at the bottom of the rotating frame (2), and the motor slot (46) is located at the bottom of the rotating frame (2). The third motor (44) is fixedly connected to the inner wall of the motor slot (46). The second lead screw (35) is rotatably connected to the inner wall of the second slide groove (34). One end of the second lead screw (35) extends into the third motor (44), and the extended end of the second lead screw (35) is fixedly connected to the output end of the third motor (44). Next, the slider (36) is sleeved on the circumferential surface of the second lead screw (35), and the slider (36) slides in the second groove (34). There are two second limiting grooves (45), which are opened on the inner wall of the second groove (34). There are two second limiting blocks (37), which slide in the two second limiting grooves (45). Both second limiting blocks (37) are connected to the slider (36). The first adapter block (39) is fixedly connected to the top of the flip plate (4). One end of the push-pull rod (38) is rotatably connected to the slider (36) through a hinge shaft, and the other end of the push-pull rod (38) is rotatably connected to the first adapter block (39).

4. A vehicle frame support device according to claim 3, characterized in that, The hydraulic assembly includes a transfer frame (40), a hydraulic rod (41), and a second transfer block (42). The transfer frame (40) is fixedly connected to one end of the rotating frame (2), and the second transfer block (42) is fixedly connected to the top of the flap (4). The transfer frame (40) is rotatably connected to the inside of the transfer frame (40) via a shaft. The output end of the hydraulic rod (41) is rotatably connected to the second transfer block (42).

5. A vehicle frame support device according to claim 4, characterized in that, The buffer assembly includes a buffer pad (10) and an arc-shaped buffer pad (23). The arc-shaped buffer pad (23) is fixedly connected between the gear groove (18) and the first slide groove (43). There are two buffer pads (10). The two buffer pads (10) are fixedly connected to the two sides of the hollow slide box (7). The two buffer pads (10) are located in the first slide groove (43).

6. A vehicle frame support device according to claim 5, characterized in that, The triggering component includes an infrared laser head (11), which is fixedly connected to the side of the hollow slide box (7) and is located in the first slide groove (43).

7. A vehicle frame support device according to claim 6, characterized in that, An operating terminal (31) is fixedly connected in another mounting slot (32).

8. A method of using a vehicle frame support device, characterized in that, The application of the vehicle frame support device according to claim 7 includes the following steps: S1, Stretch: Multiple sets of support devices are symmetrically distributed and installed at the bottom of the crane frame. When the four legs (3) need to be unfolded, multiple first motors (16) are started by powering on. The output ends of the multiple first motors (16) drive multiple first drive gears (15) to rotate. The multiple first drive gears (15) drive multiple transmission gears (14) to rotate through meshing with multiple transmission gears (14). The multiple transmission gears (14) drive multiple first driven gears (13) to rotate through meshing with multiple first driven gears (13). (13) Drive multiple first screws (12) to rotate. Multiple first screws (12) push multiple hollow slide boxes (7) to slide in multiple first slide grooves (43) through sliding cooperation with multiple sliding sleeves (9). Multiple hollow slide boxes (7) drive multiple rotating frames (2), multiple support legs (3), multiple flip plates (4), multiple first rotating shafts (20), multiple hollow slide boxes (7), multiple sets of connecting rod assemblies and multiple sets of hydraulic assemblies to move longitudinally, thereby realizing the extension of multiple rotating frames (2), multiple support legs (3) and multiple flip plates (4) from the bottom of multiple steel frames (1); S2, Deflection: When the rotating frame (2), support legs (3), and flap (4) are extended, multiple second motors (29) are started by powering on. The output ends of the multiple second motors (29) drive multiple second driving gears (27) to rotate. The multiple second driving gears (27) drive multiple second driven gears (26) to rotate through meshing with multiple second driven gears (26). The multiple second driven gears (26) drive multiple worms (28) to rotate. The multiple worms (28) drive multiple worm wheels (25) to rotate through meshing with multiple worm gears (25). The multiple worm gears (25) drive multiple second rotating shafts ( 24) Rotation is performed. Multiple second rotating shafts (24) drive multiple third driving gears (22) to rotate. Multiple third driving gears (22) drive multiple third driven gears (21) to rotate through meshing with multiple third driven gears (21). Multiple third driven gears (21) drive multiple first rotating shafts (20) to rotate. Multiple first rotating shafts (20) drive multiple rotating frames (2) to rotate, thereby realizing the rotation of multiple rotating frames (2). This causes multiple rotating frames (2) to drive multiple flip plates (4) and multiple legs (3) to rotate, thereby realizing the deflection of multiple legs (3). S3, Hydraulic support: While the multiple legs (3) are deflected, multiple third motors (44) are started by powering on. The output ends of the multiple third motors (44) drive multiple second lead screws (35) to rotate. The multiple second lead screws (35) slide in multiple second slide grooves (34) through sliding cooperation with multiple sliders (36). This causes multiple sliders (36) to push multiple push rods (38), which in turn push multiple flip plates (4) to press down, thereby bringing the multiple legs (3) into contact with the ground. At the same time, multiple adapter frames (40) and multiple third motors (44) are started synchronously. The output ends of multiple adapter frames (40) extend to push multiple second adapter blocks (42). The multiple adapter frames (40) generate hydraulic thrust to support the deflection between the rotating frame (2) and the flip plate (4). Then, the multiple adapter frames (40) provide hydraulic support for the crane frame. S4, Adaptive Support: When the crane is operating on complex terrain, the simultaneous activation of extension, deflection and hydraulic support allows multiple outriggers (3) to find flat support points on the complex terrain. At the same time, different hydraulic supports are used to keep the frame level and lower the center of the crane, so that the crane can adapt to complex terrain and achieve adaptive support of the crane.

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