Ground self-adaptive supporting device

Abstract

The invention discloses a ground self-adaptive supporting device which comprises a damping buffer column and a supporting foot base, a ball head is arranged at the bottom end of the damping buffer column, the ball head is in universal running fit connection with the top of the supporting foot base, and a combined supporting leg is arranged at the bottom of the supporting foot base; an arc-shaped shell is arranged at the top of the supporting foot base around the ball head, an arc-shaped inner container which is in close sliding fit connection with the inner wall of the arc-shaped shell is arranged on the outer side of the bottom of the damping buffer column, and an inner cavity is formed between the arc-shaped shell and the arc-shaped inner container; a hydraulic locking assembly for pressing and fixing the arc-shaped inner container towards the arc-shaped shell is arranged in the inner cavity. According to the invention, self-adaptive shape follow-up supporting based on topographic relief and inclination angles can be carried out on the heavy load, and the stability of heavy load supporting is ensured.

Description

Technical Field

[0001] This invention belongs to the technical field of adaptive support devices, and specifically relates to a ground adaptive support device. Background Technology

[0002] A ground adaptive device is a device that can sense changes in the external environment and automatically adjust its own state or characteristics to maintain stability, safety, or optimal performance. Ground adaptive devices are a key component in the structures of many large transportation and loading equipment, and are crucial to the safety of ground loading and unloading. For large transportation and loading equipment, support measures should be taken to provide additional support force during loading to prevent instability. However, large machinery may be parked in complex and harsh ground environments with varied ground conditions, such as bumps or depressions. Therefore, ground adaptive devices are needed to mitigate the effects of complex and harsh environments. With the rapid development of domestic technology, many new types of large transportation and loading equipment are gradually emerging. To ensure the safety of their ground loading and unloading, a new type of ground adaptive device is urgently needed to ensure the stability of the equipment.

[0003] Therefore, the present invention discloses a ground adaptive support device. Summary of the Invention

[0004] This invention discloses a ground adaptive support device that can provide adaptive conformal support for heavy loads based on terrain undulations and inclination angles, ensuring the stability of heavy load support.

[0005] This invention is achieved through the following technical solution: A ground adaptive support device includes a damping buffer column and a support leg. The bottom end of the damping buffer column is provided with a ball head, which is omnidirectionally rotatably connected to the top of the support leg. The bottom of the support leg is provided with a combined support leg. The top of the support leg is provided with an arc-shaped outer shell around the ball head. The bottom outer side of the damping buffer column is provided with an arc-shaped inner liner that is tightly slidably connected to the inner wall of the arc-shaped outer shell. An inner cavity is formed between the arc-shaped outer shell and the arc-shaped inner liner. The interior of the inner cavity is provided with a hydraulic locking component that presses and fixes the arc-shaped inner liner toward the arc-shaped outer shell.

[0006] When the combined outriggers at the bottom of the support base contact the ground at different angles, the ball joints engage with the omnidirectional rotation of the top of the support base, allowing the curved outer shell and the curved inner liner to rotate omnidirectionally. This enables the combined outriggers to contact the ground at different angles, providing adaptive support for the load in conjunction with the damping buffer columns. Simultaneously, a hydraulic locking assembly locks the curved outer shell and the curved inner liner into place, thus fixing the posture of the entire support device.

[0007] To better realize the present invention, the hydraulic locking assembly further includes a hydraulic actuating cylinder, a piston, and an arc-shaped inner extrusion plate. The hydraulic actuating cylinder is installed in the inner cavity, and the piston is slidably arranged inside the hydraulic actuating cylinder. One end of the piston extends to the outside of the hydraulic actuating cylinder and is connected to the arc-shaped inner extrusion plate. One side of the arc-shaped inner extrusion plate is arranged corresponding to the inner surface contour of the arc-shaped inner liner.

[0008] To better realize the present invention, an arc-shaped outer extrusion piece is slidably disposed between the inner side surface of the arc-shaped outer shell and the outer side surface of the arc-shaped inner liner. A guide groove is provided at one end of the arc-shaped outer extrusion piece near the arc-shaped inner extrusion piece, and the bottom of the arc-shaped inner extrusion piece is slidably connected to the guide groove.

[0009] To better realize the present invention, a first limiting boss is provided on the inner side of the arc-shaped outer shell, and a second limiting boss corresponding to the first limiting boss is provided on the outer side of the arc-shaped inner liner.

[0010] To better realize the present invention, the combined support leg further includes a main support leg and an auxiliary support leg. The main support leg is raised and lowered at the bottom center of the support base, and the auxiliary support leg is arranged around the main support leg, with one end of the auxiliary support leg slidably connected to the support base.

[0011] To better realize the present invention, the top of the main support leg is provided with a connecting stud, and the bottom center of the support base is provided with a threaded hole, and the connecting stud is connected to the threaded hole.

[0012] To better realize the present invention, further, a plurality of mounting grooves are provided circumferentially on the side wall of the support base, the auxiliary support leg includes a sliding part and a rotating part, one end of the sliding part is slidably connected to the mounting groove, and a damping spring is provided between the sliding part and the bottom of the mounting groove; the other end of the sliding part is rotatably hinged to the rotating part, and an auxiliary foot pad is provided at the end of the rotating part away from the sliding part.

[0013] To better realize the present invention, the other end of the sliding part is provided with a first hinge hole, the top of the rotating part is provided with a second hinge hole, a threaded pin is inserted between the first hinge hole and the second hinge hole, and a locking nut is threadedly fitted onto one end of the threaded pin.

[0014] To better realize the present invention, the damping buffer column further includes an outer cylinder and an inner cylinder that are slidably connected. The bottom end of the inner cylinder is provided with a ball head. A separating piston is provided between the inner cylinder and the outer cylinder. An air chamber is provided inside the inner cylinder. An oil chamber is provided inside the outer cylinder. A central rod that abuts against one side of the separating piston is provided inside the oil chamber. A damping pad is sleeved on the outside of the central rod. A damping hole is provided on the damping pad.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention utilizes a universal rotating connection structure between the ball joint and the support base, combined with a universal rotating engagement structure between the arc-shaped outer shell and the arc-shaped inner liner, to form a double universal rotating structure. This allows the combined support legs at the bottom of the support base to adapt to different undulations and inclinations of the ground, thereby ensuring the stability of the load support. Simultaneously, this invention uses the engagement of the arc-shaped inner and outer compression plates in the hydraulic locking assembly to press and fix the rotated arc-shaped inner liner in place, thereby achieving stable support posture. Combined with the damping buffer column, this effectively prevents the load from becoming unstable under the influence of external vibrations and other factors. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the ground adaptive support device. Figure 2 This is a schematic diagram of the combined outriggers; Figure 3 This is a schematic diagram of the structure of a damping buffer column; Figure 4 for Figure 1 A magnified view of part A.

[0017] Wherein: 1-damping buffer column; 2-support foot; 3-ball head; 4-arc-shaped outer shell; 5-arc-shaped inner liner; 6-hydraulic locking assembly; 7-combination support leg; 11-outer cylinder; 12-inner cylinder; 13-separating piston; 14-center rod; 15-damping pad; 111-oil chamber; 121-air chamber; 61-hydraulic actuator cylinder; 62-piston; 63-arc-shaped inner extrusion plate; 64-arc-shaped outer extrusion plate; 71-main support leg; 72-auxiliary support leg; 73-damping spring; 711-connecting stud; 721-sliding part; 722-rotating part; 723-auxiliary foot pad. Detailed Implementation

[0018] Example 1: This embodiment provides a ground adaptive support device, such as... Figures 1-4 As shown, the device includes a damping buffer column 1 and a support leg 2. The bottom end of the damping buffer column 1 is provided with a ball head 3, which is omnidirectionally connected to the top of the support leg 2. The bottom of the support leg 2 is provided with a combined support leg 7. The top of the support leg 2 is provided with an arc-shaped outer shell 4 around the ball head 3. The bottom outer side of the damping buffer column 1 is provided with an arc-shaped inner liner 5 that is tightly slidably connected to the inner wall of the arc-shaped outer shell 4. An inner cavity is formed between the arc-shaped outer shell 4 and the arc-shaped inner liner 5. The inner cavity is provided with a hydraulic locking assembly 6 that presses and fixes the arc-shaped inner liner 5 toward the arc-shaped outer shell 4.

[0019] A ball joint is located at the center of the top of the support leg 2. The ball head 3 is omnidirectionally connected to the ball joint. A limit nut is threaded into the opening of the ball joint, and an adjusting shim is placed between the limit nut and the ball head 3 to keep the ball head 3 inside the ball joint, preventing it from coming out. For ground with different inclination angles, the omnidirectional rotation between the ball head 3 and the ball joint drives the omnidirectional rotation between the arc-shaped outer shell 4 and the arc-shaped inner liner 5, allowing the support leg 2 to adapt to the ground inclination angle until the supporting surface of the combined support leg 7 is in close contact with the ground. At this point, the hydraulic locking assembly 6 locks the arc-shaped outer shell 4 and the arc-shaped inner liner 5 in place, thus fixing the posture of the combined support leg 7 and achieving terrain-based adaptive support for the load.

[0020] Example 2: This embodiment discloses a ground adaptive support device, which is an improvement on Embodiment 1, such as... Figure 1 and Figure 4 As shown, the hydraulic locking assembly 6 includes a hydraulic actuating cylinder 61, a piston 62, and an arc-shaped inner extrusion plate 63. The hydraulic actuating cylinder 61 is installed in the inner cavity, and the piston 62 is slidably arranged inside the hydraulic actuating cylinder 61. One end of the piston 62 extends to the outside of the hydraulic actuating cylinder 61 and is connected to the arc-shaped inner extrusion plate 63. One side of the arc-shaped inner extrusion plate 63 is arranged corresponding to the inner surface contour of the arc-shaped inner liner 5.

[0021] The hydraulic actuator 61 is equipped with an oil inlet and an oil outlet, which are connected to an external hydraulic oil supply device via connecting pipes. By injecting and discharging oil, the oil pressure at both ends of the piston 62 is adjusted, allowing the piston 62 to slide along the inner cavity of the hydraulic actuator 61 under the action of pressure difference. One end of the piston 62 extends to the outside of the hydraulic actuator 61 to drive the arc-shaped inner pressing plate 63 to move towards or away from the arc-shaped inner liner 5. When it is necessary to lock the arc-shaped inner liner 5, the arc-shaped inner pressing plate 63 moves closer to the arc-shaped inner liner 5 and presses the arc-shaped inner liner 5 against the arc-shaped outer shell 4, preventing further rotation between the arc-shaped outer shell 4 and the arc-shaped inner liner 5.

[0022] Furthermore, an arc-shaped outer extrusion piece 64 is slidably disposed between the inner surface of the arc-shaped outer shell 4 and the outer surface of the arc-shaped inner liner 5. A guide groove is provided at one end of the arc-shaped outer extrusion piece 64 near the arc-shaped inner extrusion piece 63, and the bottom of the arc-shaped inner extrusion piece 63 is slidably connected to the guide groove. When the arc-shaped inner extrusion piece 63 is not pressing the arc-shaped inner liner 5, the arc-shaped outer extrusion piece 64 can slide relative to the arc-shaped inner liner 5 and the arc-shaped outer shell 4, without affecting the relative sliding between the arc-shaped outer shell 4 and the arc-shaped inner liner 5. When the arc-shaped inner extrusion piece 63 presses and fixes the arc-shaped inner liner 5 towards the arc-shaped outer shell 4 along the guide groove, the arc-shaped outer extrusion piece 64 located between the arc-shaped outer shell 4 and the arc-shaped inner liner 5 is also pressed, at which point the arc-shaped outer shell 4 and the arc-shaped inner liner 5 can no longer slide relative to each other.

[0023] Furthermore, a first limiting boss is provided on the inner side of the arc-shaped outer shell 4, and a second limiting boss corresponding to the first limiting boss is provided on the outer side of the arc-shaped inner liner 5. The contact limiting between the first and second limiting bosses prevents the arc-shaped inner liner 5 from sliding excessively between itself and the arc-shaped outer shell 4, thus preventing the arc-shaped inner liner 5 from detaching from the arc-shaped outer shell 4.

[0024] The rest of this embodiment is the same as that of Embodiment 1, so it will not be described again.

[0025] Example 3: This embodiment discloses a ground adaptive support device, which is optimized based on Embodiment 1 or 2, such as... Figure 1 and Figure 2 As shown, the combined support leg 7 includes a main support leg 71 and an auxiliary support leg 72. The main support leg 71 is raised and lowered at the bottom center of the support base 2. The auxiliary support leg 72 is arranged around the main support leg 71, and one end of the auxiliary support leg 72 is slidably connected to the support base 2.

[0026] The main support leg 71 has its ground surface as the primary support surface, making extensive contact with the ground. Anti-slip pads are installed on the main support surface to increase friction with the ground. Simultaneously, the main support leg 71 can be raised and lowered coaxially with the support base 2 to adjust the axial support height. After the main support leg 71 is firmly in contact with the ground, the surrounding auxiliary support legs 72 can then make additional contact with the ground, ensuring the entire adaptive support device is more stable.

[0027] Furthermore, a connecting stud 711 is provided at the top of the main support leg 71, and a threaded hole is provided at the center of the bottom of the support base 2. The connecting stud 711 is engaged with the threaded hole. By rotating the connecting stud 711, the connecting stud 711 can be moved axially, thereby driving the main support leg 71 to move axially up and down.

[0028] Furthermore, the side wall of the support leg 2 is provided with several mounting grooves 21 along the circumference. The auxiliary support leg 72 includes a sliding part 721 and a rotating part 722. One end of the sliding part 721 is slidably connected to the mounting groove 21, and a damping spring 73 is provided between the sliding part 721 and the bottom of the mounting groove 21. The other end of the sliding part 721 is rotatably hinged to the rotating part 722, and an auxiliary foot pad 723 is provided at the end of the rotating part 722 away from the sliding part 721. The rotating part 722 can rotate at a certain angle relative to the sliding part 721, so that the auxiliary foot pad 723 at one end of the rotating part 722 can adapt to the rough terrain and make stable contact. Then, the rotation position of the rotating part 722 is locked, and the auxiliary support leg 72 can provide auxiliary support. Under the action of load, the sliding part 721 slides along the mounting groove 21 and compresses the damping spring 73. The compression of the damping spring 73 buffers the load support and effectively avoids the influence of external vibration on the load.

[0029] Furthermore, the other end of the sliding part 721 is provided with a first hinge hole, and the top of the rotating part 722 is provided with a second hinge hole. A threaded pin is inserted between the first hinge hole and the second hinge hole, and a locking nut is threaded onto one end of the threaded pin. After the rotating part 722 has been adjusted, the locking nut can be screwed on to lock the threaded pin, preventing the rotating part 722 from continuing to rotate relative to the sliding part 721.

[0030] The rest of this embodiment is the same as that of embodiment 1 or 2, so it will not be described again.

[0031] Example 4: This embodiment discloses a ground adaptive support device, which is an improvement on any one of embodiments 1-3, such as... Figure 1 and Figure 3 As shown, the damping buffer column 1 includes an outer cylinder 11 and an inner cylinder 12 that are slidably connected. The bottom end of the inner cylinder 12 is provided with a ball head 3. A separating piston 13 is provided between the inner cylinder 12 and the outer cylinder 11. An air chamber 121 is provided inside the inner cylinder 12. An oil chamber 111 is provided inside the outer cylinder 11. A central rod 14 that abuts against one side of the separating piston 13 is provided inside the oil chamber 111. A damping pad 15 is sleeved on the outside of the central rod 14. A damping hole is provided on the damping pad 15.

[0032] The air chamber 121 is pre-filled with nitrogen gas at a certain pressure through the air port on the inner cylinder 12, and the oil chamber 111 is pre-filled with oil through the oil port on the outer cylinder 11. When the combined outrigger 7 touches the ground, the nitrogen gas inside the air chamber 121 is compressed under the reaction force, thus providing the first stage of damping buffer for the load. After the nitrogen gas is compressed to its limit, it releases energy. At this time, the oil inside the oil chamber 111 flows to one side of the separating piston 13 through the damping hole on the damping pad 15, realizing the second stage of damping buffer for the load.

[0033] The rest of this embodiment is the same as any one of embodiments 1-3, so it will not be described again.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A ground adaptive support device, comprising a damping buffer column (1) and a support base (2), characterized in that, The bottom end of the damping buffer column (1) is provided with a ball head (3), which is omnidirectionally connected to the top of the support base (2). The bottom of the support base (2) is provided with a combined support leg (7). The top of the support base (2) is provided with an arc-shaped outer shell (4) around the ball head (3). The bottom outer side of the damping buffer column (1) is provided with an arc-shaped inner liner (5) that is tightly slidably connected to the inner wall of the arc-shaped outer shell (4). An inner cavity is formed between the arc-shaped outer shell (4) and the arc-shaped inner liner (5). The inner cavity is provided with a hydraulic locking component (6) that presses and fixes the arc-shaped inner liner (5) toward the arc-shaped outer shell (4).

2. The ground adaptive support device according to claim 1, characterized in that, The hydraulic locking assembly (6) includes a hydraulic actuating cylinder (61), a piston (62), and an arc-shaped inner extrusion plate (63). The hydraulic actuating cylinder (61) is installed in the inner cavity. The piston (62) is slidably arranged inside the hydraulic actuating cylinder (61). One end of the piston (62) extends to the outside of the hydraulic actuating cylinder (61) and is connected to the arc-shaped inner extrusion plate (63). One side of the arc-shaped inner extrusion plate (63) is set to correspond to the inner surface contour of the arc-shaped inner liner (5).

3. The ground adaptive support device according to claim 2, characterized in that, An arc-shaped outer extrusion piece (64) is slidably disposed between the inner side surface of the arc-shaped outer shell (4) and the outer side surface of the arc-shaped inner liner (5). A guide groove is provided at one end of the arc-shaped outer extrusion piece (64) near the arc-shaped inner extrusion piece (63). The bottom of the arc-shaped inner extrusion piece (63) is slidably connected to the guide groove.

4. The ground adaptive support device according to claim 3, characterized in that, The inner side of the arc-shaped outer shell (4) is provided with a first limiting boss, and the outer side of the arc-shaped inner liner (5) is provided with a second limiting boss corresponding to the first limiting boss.

5. A ground adaptive support device according to any one of claims 1-4, characterized in that, The combined support leg (7) includes a main support leg (71) and an auxiliary support leg (72). The main support leg (71) is raised and lowered at the bottom center of the support foot (2). The auxiliary support leg (72) is arranged around the main support leg (71), and one end of the auxiliary support leg (72) is slidably connected to the support foot (2).

6. A ground adaptive support device according to claim 5, characterized in that, The top of the main support leg (71) is provided with a connecting stud (711), and the bottom center of the support base (2) is provided with a threaded hole, and the connecting stud (711) is connected to the threaded hole.

7. A ground adaptive support device according to claim 5, characterized in that, The side wall of the support base (2) is provided with several mounting grooves (21) along the circumferential direction. The auxiliary support leg (72) includes a sliding part (721) and a rotating part (722). One end of the sliding part (721) is slidably connected to the mounting groove (21). A damping spring (73) is provided between the sliding part (721) and the bottom of the mounting groove (21). The other end of the sliding part (721) is rotatably hinged to the rotating part (722). An auxiliary foot pad (723) is provided at the end of the rotating part (722) away from the sliding part (721).

8. A ground adaptive support device according to claim 7, characterized in that, The other end of the sliding part (721) is provided with a first hinge hole, and the top of the rotating part (722) is provided with a second hinge hole. A threaded pin is inserted between the first hinge hole and the second hinge hole, and a locking nut is threadedly fitted onto one end of the threaded pin.

9. A ground adaptive support device according to any one of claims 1-4, characterized in that, The damping buffer column (1) includes an outer cylinder (11) and an inner cylinder (12) that are slidably connected. A ball head (3) is provided at the bottom end of the inner cylinder (12). A separator piston (13) is provided between the inner cylinder (12) and the outer cylinder (11). An air chamber (121) is provided inside the inner cylinder (12). An oil chamber (111) is provided inside the outer cylinder (111). A central rod (14) is provided inside the oil chamber (111) that abuts against one side of the separator piston (13). A damping pad (15) is sleeved on the outside of the central rod (14). A damping hole is provided on the damping pad (15).

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