Support structure and crane

Abstract

The present application relates to the technical field of engineering machinery, and discloses a support structure, which comprises a leveling assembly, a driving assembly and a plurality of support pieces; the leveling assembly comprises a connecting piece and a bearing piece, the connecting piece is used for connecting an external structure, the bearing piece is connected with the connecting piece, and the bearing piece can rotate relative to the connecting piece around at least two mutually perpendicular horizontal axes; the driving assembly comprises a plurality of driving pieces, the plurality of driving pieces are arranged in the circumferential direction of the bearing piece and connected with the bearing piece; the plurality of support pieces are arranged in one-to-one correspondence with the driving pieces and drivingly connected, and each support piece is movably connected with the bearing piece; the driving pieces are used for driving the corresponding support pieces to swing relative to the bearing piece, so that the plurality of support pieces form an enclosed support structure below the bearing piece. The present application realizes posture self-adaptive adjustment through multi-axis rotation of the bearing piece, and realizes sufficient adhesion to the ground and uniform distribution of load through independent swinging of each support piece, thereby effectively improving support stability, reducing ground contact specific pressure and sinking risk.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, specifically to support structures and cranes. Background Technology

[0002] As an important type of engineering machinery, cranes require outriggers for support during operation to ensure the stability and safety of the entire machine. The ends of the outriggers are typically equipped with outrigger plates, whose function is to distribute the concentrated load of the outriggers onto the ground, thereby reducing the ground pressure and preventing the outriggers from sinking.

[0003] In related technologies, crane outriggers typically feature integral circular or polygonal planar support plates at their lower ends. These support plates are rigid, integral structures with relatively simple designs, primarily reducing ground pressure by increasing their diameter. However, in actual operation, especially on uneven ground, slopes, soft soil, or gravel surfaces, these integral support plates exhibit the following drawbacks: due to their rigidity, when in contact with uneven ground, they often experience partial suspension or initial contact on one side, causing the outrigger axis to deviate from the vertical direction, resulting in additional bending moments and eccentric loads. Summary of the Invention

[0004] In view of this, the present invention provides a support structure and engineering machinery to solve the problem that "cranes are prone to additional bending moments and eccentric loads when deploying outriggers on uneven ground".

[0005] In a first aspect, the present invention provides a support structure, including a leveling component, a driving component, and a plurality of support members; the leveling component includes a connector and a carrier member, the connector being used to connect to an external structure, the carrier member being connected to the connector, and the carrier member being rotatable relative to the connector about at least two mutually perpendicular horizontal axes; the driving component includes a plurality of driving members, the plurality of driving members being arranged circumferentially along the carrier member and connected to the carrier member; the plurality of support members are arranged one-to-one with the driving members and are drivenly connected to the driving members, and each support member is movably connected to the carrier member; the driving members are used to drive the corresponding support members to swing relative to the carrier member, so that the plurality of support members form an enclosing support structure below the carrier member.

[0006] In one alternative implementation, in a first operating condition, at least a portion of the support member is in contact with the ground, and the load-bearing member can rotate relative to the connecting member; in a second operating condition, all support members are in contact with the ground, and the load-bearing member and the support member are simultaneously subjected to external loads, and the drive assembly locks the load-bearing member.

[0007] In one optional implementation, the drive assembly further includes a detection unit, which detects the actual load on each drive component in the second operating condition and adjusts the output state of the drive component according to the actual load.

[0008] In one alternative implementation, under the second operating condition, each drive component maintains its own output state and maintains the angle between the support component and the load-bearing component.

[0009] In one optional embodiment, the drive assembly further includes an adjustment component and multiple adapters, with each adapter corresponding to a drive component. The adjustment component is connected to multiple drive components via multiple adapters, and the adjustment component is used to control the output state of each drive component.

[0010] In one alternative embodiment, the drive member has a first segment and a second segment opposite to each other, the first segment being connected to the adapter and the second segment being connected to the support member, the second segment being telescopic relative to the first segment for adjusting the angle between the support member and the leveling component.

[0011] In one alternative implementation, the drive assembly is connected to the external structure via a fluid circuit, and the drive component is connected to the regulating component via an adapter.

[0012] In one optional embodiment, the support member is a plate-shaped structure with a connecting end and a free end. The connecting end is connected to the bearing member, and the free end is used to support the ground. The lateral dimension of the free end is larger than that of the connecting end, and adjacent support members are spaced apart.

[0013] In one alternative embodiment, each support member has a compliant contact on its lower surface, which absorbs ground undulations and increases friction between the support member and the ground; and / or, the connector includes a ball end, and the carrier includes a ball-and-socket structure that mates with the ball end, the ball end being housed within the ball-and-socket structure, and the carrier being omnidirectionally rotatable relative to the connector.

[0014] In a second aspect, the present invention also provides a crane, including the support structure described in the first aspect.

[0015] The technical solution proposed in this application has at least the following technical effects: The support structure provided in this application, through the multi-axis rotational cooperation between the connecting parts and the load-bearing parts in the leveling assembly, enables the load-bearing parts and the multiple support parts connected below them to automatically adjust their posture during contact with the ground, adapting to the uneven terrain and effectively avoiding eccentric loading caused by local suspension or one-sided initial contact. Multiple support parts are arranged circumferentially along the load-bearing parts and are independently driven by the driving parts, allowing them to swing relative to the load-bearing parts, thus forming an enclosed support structure below the load-bearing parts. This structure allows each support part to independently adjust its swing angle according to the ground undulation at its location, achieving full contact with the ground and evenly distributing external loads to each support part through the load-bearing parts, reducing the risk of subsidence in soft soil or uneven ground conditions. Furthermore, because the support structure can adapt to the ground shape, it reduces or even eliminates the need for manual leveling work such as laying wooden blocks, improving the efficiency and safety of the support operation. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of a support structure according to an embodiment of the present invention; Figure 2 This is an enlarged view of a support structure according to an embodiment of the present invention; Figure 3 This is another structural diagram of a support structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a support structure under a first working condition according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a support structure under a second working condition according to an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Leveling component; 10. Connector; 101. Ball end; 11. Bearing component; 2. Drive component; 20. Drive component; 201. First section; 202. Second section; 21. Adjustment component; 22. Adapter component; 3. Support component; 30. Connecting end; 31. Free end; 4. Compliant contact component; 5. Protective component. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0020] It should be understood that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to impose strict limitations on the technical solutions unless the context clearly indicates otherwise. For example, the use of "a," "an," and "the" to modify a feature does not preclude the possibility that the feature may be plural in other embodiments.

[0021] It should be understood that the terms "comprising," "including," and "having" are open-ended, indicating the presence of the stated features but not excluding the possibility of other features in the embodiment. Similarly, the use of terms such as "first," "second," etc., to describe multiple features only indicates the distinction between one feature and another, and such terms do not imply order or sequence unless explicitly stated in the context.

[0022] It should be understood that, unless the context clearly indicates otherwise, the terms "setup," "connection," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a direct connection or an indirect connection via a medium. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.

[0023] In addition, for ease of description, the text will use terms of spatial relative relationship to describe the position of one feature relative to another feature, such as "inner", "outer", "end", "side", "upper", "middle", "lower", "high", "low", "axial", "circumferential", "radial", "horizontal", "vertical", "first direction", "second direction", etc. It can be understood that the spatial relative relationship between two features should include other specific situations besides those shown in the accompanying drawings of the specification.

[0024] Outrigger support structures used in cranes and other construction machinery are typically located at the lower end of the outrigger's vertical hydraulic cylinder to distribute the concentrated load transmitted by the outrigger to the ground. These support structures generally include a rigid outrigger plate fixedly connected or hinged to the end of the outrigger. The outrigger plate is often a one-piece circular or polygonal flat plate structure with a flat lower surface or anti-slip texture. During operation, the outrigger extends, pressing the outrigger plate firmly against the ground. The load is transferred to the foundation using the area of ​​the outrigger plate itself, thus reducing the ground pressure.

[0025] However, the existing outrigger support structure has shortcomings in practical applications: because the outrigger plate is a rigid, integral structure with a continuous plane on its lower surface, it is often difficult to achieve complete contact with the ground when the working surface is sloping, uneven, or has varying degrees of softness and hardness. This often results in partial suspension or one-sided premature contact. This phenomenon causes the outrigger axis to deviate from the vertical direction, subjecting the outrigger to additional bending moments and eccentric loads, thus affecting the overall stability of the machine.

[0026] Meanwhile, under conditions of uneven ground bearing capacity distribution, the integral outrigger plate cannot actively adjust the load distribution according to the bearing conditions of each contact area, which can easily lead to local overload and subsidence, further aggravating the outrigger tilt and even causing the risk of overturning. In addition, to improve support conditions, uneven ground areas are usually filled by manually laying wooden blocks or steel plates. This method is inefficient, relies on the experience of the operators, and still cannot guarantee a uniform fit between the outrigger plate and the ground under complex terrain conditions.

[0027] The embodiments of this application are described below with reference to the accompanying drawings. It can be understood that the technical features involved in the different embodiments described below can be combined with each other as long as they do not conflict with each other.

[0028] The following is combined with Figures 1 to 5 The following describes embodiments of the present invention.

[0029] According to an embodiment of the present invention, in a first aspect, referring to Figure 1 and Figure 2 A support structure is provided, including a leveling component 1, a driving component 2, and multiple support members 3. The leveling component 1 includes a connector 10 and a carrier 11. The connector 10 is used to connect to an external structure, and the carrier 11 is connected to the connector 10 and can rotate relative to the connector 10 about at least two mutually perpendicular horizontal axes. The driving component 2 includes multiple driving members 20, which are arranged circumferentially along the carrier 11 and connected to the carrier 11. Multiple support members 3 are arranged one-to-one with the driving members 20 and are drivenly connected to the driving members 20. Each support member 3 is movably connected to the carrier 11. The driving members 20 are used to drive the corresponding support member 3 to swing relative to the carrier 11, so that the multiple support members 3 form an enclosing support structure below the carrier 11.

[0030] In this embodiment, refer to Figure 1 and Figure 2This support structure can be installed at the lower end of the crane outriggers to contact the ground and provide stable support when the outriggers are extended. The support structure includes a leveling assembly 1, a drive assembly 2, and multiple support members 3. The leveling assembly 1 includes a connector 10 and a carrier 11. The upper end of the connector 10 is used to connect to an external structure. The driving assembly 2 includes multiple driving members 20, which are evenly spaced along the circumference of the carrier 11. One end of each driving member 20 is connected to the lower surface or side of the carrier 11. Multiple support members 3 are arranged one-to-one with the multiple driving members 20. The connecting end 30 of each support member 3 is hinged to the edge of the carrier 11 through a pin to form a movable connection, so that the support member 3 can swing relative to the carrier 11 in a vertical plane. Each support member 3 is also hinged to the piston rod end of the corresponding driving member 20 to form a driving connection. Thus, when the driving member 20 extends or retracts, it can drive the corresponding support member 3 to swing relative to the carrier 11 around its upper hinge point, thereby adjusting the angle between the support member 3 and the carrier 11. The multiple support members 3 are arranged at intervals along the circumference of the carrier 11 and together form an enclosed support structure below the carrier 11.

[0031] Specifically, refer to Figure 1 and Figure 2 The external structure is the piston rod end of the vertical cylinder of the crane outrigger. The bearing member 11 is connected to the lower end of the connecting member 10, and the bearing member 11 can rotate relative to the connecting member 10 about at least two mutually perpendicular horizontal axes.

[0032] Specifically, refer to Figure 1 and Figure 2 The lower end of the connector 10 is a ball head structure, and the upper center of the bearing member 11 is provided with a ball socket that matches the ball head. The ball head is accommodated in the ball socket to form a ball hinge structure, thereby realizing the universal rotation function of the bearing member 11 relative to the connector 10.

[0033] Specifically, the drive component 20 is a hydraulic cylinder, which has a first section 201 and a second section 202. The first section 201 is the cylinder body section, and the second section 202 is the movable section. The cylinder body section is hinged to the support component 11. The support component 11 has a fluid channel machined inside. One end of the fluid channel is connected to a fluid distribution device fixed on the outrigger through a pipeline, and the other end branches to form multiple independent branches. Each independent branch is connected to the oil inlet of a drive component 20 through a pipeline, thereby independently supplying pressurized fluid to each drive component 20.

[0034] It should be noted that, referring to Figure 4During operation, when the vertical cylinder of the crane outrigger drives the piston rod to lower, the entire support structure moves toward the ground. Before or at the initial stage of contact with the ground, each drive component 20 is in a low-pressure state, and each support component 3 is in a pre-deployed posture and forms the same angle with the carrier component 11. When the lower end of any support component 3 contacts the ground first, the ground reaction force is transmitted to the carrier component 11 through the support component 3. Since the ball joint structure between the connector 10 and the carrier component 11 allows free swinging, the carrier component 11, together with each support component 3, will be passively deflected relative to the connector 10 to make initial posture adjustments. As the outrigger continues to lower, the remaining support components 3 contact the ground in sequence. During this process, the carrier component 11 continuously adapts to the contour of the ground until the lower ends of all support components 3 are in contact with the ground.

[0035] Furthermore, referring to Figure 5 After all the support members 3 have touched the ground, pressurized fluid is supplied to each drive member 20. Due to the different bearing conditions at each ground contact point, the fluid pressure in each drive member 20 is different. The pressurized fluid flows in the loop connecting each drive member 20, causing the drive member 20 with lower pressure to receive more supply and extend, while the drive member 20 with higher pressure retracts appropriately, thereby fine-tuning the swing angle of each support member 3. This process continues until the fluid pressure in each drive member 20 tends to be balanced. At this time, the ground reaction force borne by each support member 3 reaches a uniform distribution state. Then, the internal pressure of each drive member 20 is locked, so that the angle of each support member 3 relative to the bearing member 11 is fixed, and the entire support structure enters a rigid bearing state to provide stable support for the crane.

[0036] Specifically, the ball joint structure between the connector 10 and the load-bearing member 11 allows the load-bearing member 11 to rotate relative to the connector 10 around any horizontal axis within an angle range of no more than ±10°. This angle range is sufficient to adapt to uneven ground and gentle slope terrain commonly found on the work site, and at the same time, it can effectively limit the excessive deflection of the load-bearing member 11 after entering the rigid load-bearing state, ensuring the overall posture stability of the support structure during the load-bearing process.

[0037] Specifically, the bearing member 11 is a circular rigid bearing plate, with eight hinge seats evenly arranged along its circumference on the edge of the bearing plate for movable connection with each support member 3. Correspondingly, there are eight support members 3, arranged in a segmented movable support leg structure, evenly distributed along the circumference of the bearing plate. Each support member 3 is connected to the bearing plate through an adjusting cylinder, which is used to adjust the swing angle of the support member 3 relative to the bearing plate, and can lock the support member 3 at the current angle position after the load is evenly distributed.

[0038] Understandably, the pressure fluid can be hydraulic oil or gas.

[0039] In one embodiment, refer to Figure 4and Figure 5 In the first working condition, at least part of the support member 3 is in contact with the ground, and the bearing member 11 can rotate relative to the connecting member 10; in the second working condition, all of the support members 3 are in contact with the ground, and the bearing member 11 and the support member 3 are simultaneously subjected to external loads, and the drive component 2 locks the bearing member 11.

[0040] In this embodiment, the support structure has a first working condition and a second working condition during its operation. In the first working condition, the support structure is in the initial stage of contacting the ground. At this time, at least some of the lower ends of the support members 3 have contacted the ground but have not yet fully touched the ground. The bearing member 11 can swing freely relative to the connecting member 10 through the universal rotational degree of freedom provided by the connecting member 10, so that the bearing member 11 and the connected support members 3 can passively adjust their attitude according to the ground reaction force to adapt to the macroscopic unevenness of the ground. In the second working condition, as the outriggers are further lowered, the lower ends of all the support members 3 form effective contact with the ground. At this time, the bearing member 11 and each support member 3 synchronously bear the vertical load from the external structure. The drive component 2 switches from the follow-up state to the locked state, and the internal pressure of the drive component 20 is locked, fixing the swing angle of the bearing member 11 relative to the connecting member 10 and the swing angle of each support member 3 relative to the bearing member 11, so that the entire support structure enters a rigid bearing state to stably transmit the external load.

[0041] In one embodiment, the drive component 2 further includes a detection unit. Under the second operating condition, the detection unit detects the actual load of each drive component 20 and adjusts the output state of the drive component 20 according to the actual load.

[0042] In this embodiment, the drive assembly 2 further includes a detection unit, which is disposed in the hydraulic circuit of each drive component 20 and is used to detect the hydraulic pressure inside each drive component 20. In the second working condition, that is, when all support components 3 are in contact with the ground and the load-bearing component 11 and each support component 3 are synchronously subjected to external loads, the detection unit (not shown) acquires the hydraulic pressure borne by each drive component 20 in real time, and adjusts the output state of each drive component 20 according to the pressure difference between each drive component 20, so that the drive component 20 with lower pressure increases the output force and the drive component 20 with higher pressure decreases the output force, until the actual load of each drive component 20 tends to be balanced, thereby realizing the uniform distribution of the ground load by each support component 3.

[0043] In one embodiment, refer to Figure 5 In the second operating condition, each drive component 20 maintains its own output state and maintains the angle between the support component 3 and the carrier component 11.

[0044] Specifically, in the second working condition, after each support member 3 has completed contact with the ground and the load distribution tends to be uniform, each drive member 20 maintains its own output state and no longer changes, thereby maintaining the swing angle of the corresponding support member 3 relative to the bearing member 11, so that the included angle between the support member 3 and the bearing member 11 is locked, and the support structure stably bears the load applied by the external structure in a rigid overall form.

[0045] In one embodiment, the drive assembly 2 further includes an adjustment member 21 and a plurality of adapters 22, the adapters 22 being configured one-to-one with the drive assembly 20, the adjustment member 21 being connected to the plurality of drive assemblies 20 respectively through the plurality of adapters 22, and the adjustment member 21 being used to control the output state of each drive assembly 20.

[0046] In this embodiment, the drive assembly 2 further includes an adjusting member 21 and multiple adapters 22. The adapters 22 are configured one-to-one with the drive assemblies 20, and the adjusting member 21 is connected to the multiple drive assemblies 20 respectively through the multiple adapters 22. The adjusting member 21 is used to receive pressurized fluid and independently distribute the pressurized fluid to each drive assembly 20 through each adapter 22 to control the output state of each drive assembly 20.

[0047] Specifically, the regulating component 21 is an annular distribution valve, which is fixed to the external structure and has a fluid channel inside for splitting one input fluid into multiple independent outputs. The adapter 22 is a fluid pipeline, one end of which is connected to the corresponding output interface of the annular distribution valve, and the other end is connected to the fluid inlet of the corresponding drive component 20, thereby guiding the pressurized fluid from the annular distribution valve to each drive component 20.

[0048] In another embodiment, refer to Figure 3 The annular distribution valve is also equipped with a protective component 5, which is fixed to the outer periphery or end of the annular distribution valve and at least covers the area of ​​the adapter 22 connected to the annular distribution valve. The adapter 22 is specifically a fluid pipeline. The protective component 5 is used to shield and protect the interface between the fluid pipeline and the annular distribution valve to prevent damage or leakage caused by external debris, dust, or impacts during operation, thereby improving the reliability and service life of the fluid passage in the drive assembly 2. The protective component 5 can be a metal stamped cover or an engineering plastic sleeve, with a gap between its inner wall and the outer surface of the adapter 22 to avoid the bearing component 11 during leveling.

[0049] In one embodiment, refer to Figure 1 and Figure 2 The drive component 20 has a first segment 201 and a second segment 202. The first segment 201 is connected to the adapter 22, and the second segment 202 is connected to the support component 3. The second segment 202 can extend and retract relative to the first segment 201 to adjust the angle between the support component 3 and the leveling component 1.

[0050] In this embodiment, when the second segment 202 extends or retracts relative to the first segment 201, the second segment 202 drives the support member 3 connected to it to swing around the movable connection between the support member 3 and the carrier member 11, thereby changing the angle between the support member 3 and the carrier member 11 to adapt to the ground topography or adjust the load distribution state.

[0051] Specifically, the drive component 20 is a hydraulic cylinder, the first section 201 is the cylinder body section, and the second section 202 is the movable section. The cylinder body section is hinged to the support component 11. The support component 11 has a fluid channel machined inside. One end of the fluid channel is connected to a fluid distribution device fixed on the outrigger through a pipeline, and the other end branches to form multiple independent branches. Each independent branch is connected to the oil inlet of a drive component 20 through a pipeline, thereby independently supplying pressurized fluid to each drive component 20.

[0052] Optionally, the drive component 20 can also be a cylinder structure, and correspondingly, the adapter 22 can be a tube body adapted to the cylinder, and the adjusting component 21 can be a valve body for adjusting the air pressure inside the cylinder.

[0053] In one embodiment, the drive component 2 is connected to the external structure fluid circuit, and the drive component 20 is connected to the regulating component 21 through the adapter 22.

[0054] In this embodiment, the drive assembly 2 is connected to the external structure via a fluid circuit to receive pressurized fluid from an external fluid source; the drive member 20 is in fluid communication with the regulating member 21 via the adapter 22; the inlet end of the regulating member 21 is connected to the supply pipeline fixed on the external structure, and the outlet end of the regulating member 21 is connected to the inlet of each drive member 20 via each adapter 22, so that the pressurized fluid can flow from the external structure into each drive member 20 sequentially through the regulating member 21 and the adapter 22, thereby independently driving each drive member 20 to operate.

[0055] Specifically, the regulating component 21 is an annular distribution valve. The annular distribution valve is fixedly sleeved on the outer periphery of the external structure, and has an overall annular structure. The annular distribution valve has an internal fluid channel that connects to the supply port, used to receive pressurized fluid from an external fluid source. Multiple independent outlet ports are also spaced along the fluid channel of the annular distribution valve, and each outlet port is connected to a corresponding drive component 20 via an adapter 22. After the pressurized fluid enters the fluid channel from the supply port, it can be distributed to each drive component 20 via the outlet ports, achieving independent fluid supply to each drive component 20.

[0056] Furthermore, the external structure specifically refers to the outriggers of the engineering machinery, with the annular distribution valve mounted on the telescopic rod of the outrigger.

[0057] In one embodiment, refer to Figure 2The support member 3 is a plate-shaped structure. The support member 3 has a connecting end 30 and a free end 31. The connecting end 30 is connected to the bearing member 11, and the free end 31 is used to support the ground. The lateral dimension of the free end 31 is larger than the lateral dimension of the connecting end 30, and adjacent support members 3 are spaced apart.

[0058] In this embodiment, the support member 3 is a plate-like structure, having a connecting end 30 and a free end 31 disposed opposite to each other. The connecting end 30 is movably connected to the carrier member 11, allowing the support member 3 to swing relative to the carrier member 11 with the connecting end 30 as the rotation center; the free end 31 extends away from the connecting end 30 and is used to contact the ground during support operations. Each support member 3 is spaced apart circumferentially along the carrier member 11, with a gap between adjacent support members 3 to avoid motion interference between the support members 3 during swinging.

[0059] Specifically, the lateral dimension of the free end 31 along the circumference of the bearing member 11 is larger than the lateral dimension of the connecting end 30 along the circumference of the bearing member 11, thereby forming an enlarged grounding area at the lower end of the support member 3, which is beneficial to reduce the grounding specific voltage and improve the support stability.

[0060] Furthermore, the second segment 202 of the drive component 20 is movably connected to the connecting end 30 of the support component 3.

[0061] Understandably, the end of the second segment 202 of the driving member 20 may be provided with a spherical bearing or a pin hole, and the connecting end 30 of the support member 3 is correspondingly provided with a connecting hole. The two are hinged together by a pin. Thus, when the second segment 202 of the driving member 20 extends or retracts relative to its first segment 201, the second segment 202 of the driving member 20 pushes or pulls the connecting end 30 of the support member 3 through the hinge point, causing the support member 3 to swing around its movable connection with the carrier member 11, thereby adjusting the angle between the support member 3 and the carrier member 11. This connection method allows the linear extension and retraction motion of the driving member 20 to be reliably converted into the swinging motion of the support member 3, and the hinged connection can adapt to small changes in the angle between the driving member 20 and the support member 3 during the movement, avoiding motion jamming.

[0062] Specifically, the swing angle range of the support member 3 relative to the bearing plate is ±10°, in order to adapt to the unevenness of the working surface and achieve uniform load distribution.

[0063] In one embodiment, refer to Figure 4 and Figure 5 Each support member 3 has a compliant contact member 4 on its lower surface. The compliant contact member 4 is used to absorb ground undulations and increase the friction between the support member 3 and the ground. And / or, the connector 10 includes a ball end 101, and the bearing member 11 includes a ball-and-socket structure that mates with the ball end 101. The ball end 101 is accommodated in the ball-and-socket structure, and the bearing member 11 can rotate omnidirectionally relative to the connector 10.

[0064] In this embodiment, each support member 3 has a compliant contact member 4 on its lower surface. The compliant contact member 4 is used to absorb the small undulations of the ground and increase the friction between the support member 3 and the ground, thereby further improving the stability of the support structure under complex ground conditions; and / or, the connector 10 includes a ball end 101, and the bearing member 11 includes a ball-and-socket structure that cooperates with the ball end 101. The ball end 101 is accommodated in the ball-and-socket structure so that the bearing member 11 can rotate omnidirectionally relative to the connector 10, thereby realizing the adaptive attitude adjustment of the bearing member 11 and the connected support member 3 during the contact with the ground.

[0065] According to an embodiment of the present invention, a second aspect also provides a crane, including the support structure of the first aspect.

[0066] In this embodiment, since the crane proposed in the second aspect includes the support structure of the first aspect, the crane has the same effect as the support structure, and the specific technical effects of the support structure will not be described in detail here.

[0067] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A support structure, characterized in that, include: The leveling assembly (1) includes a connector (10) and a support member (11). The connector (10) is used to connect to an external structure. The support member (11) is connected to the connector (10) and the support member (11) is rotatable relative to the connector (10) about at least two mutually perpendicular horizontal axes. The drive assembly (2) includes a plurality of drive elements (20), which are arranged circumferentially along the support member (11) and connected to the support member (11); Multiple support members (3) are provided one-to-one with the driving member (20) and are driven to be connected to the driving member (20). Each support member (3) is movably connected to the carrier member (11). The driving member (20) is used to drive the corresponding support member (3) to swing relative to the carrier member (11), so that the multiple support members (3) form an enclosing support structure under the carrier member (11).

2. The support structure according to claim 1, characterized in that, In the first working condition, at least part of the support member (3) is in contact with the ground, and the bearing member (11) can rotate relative to the connector (10); In the second working condition, all the support members (3) are in contact with the ground, the bearing member (11) is subjected to external load synchronously with the support member (3), and the drive component (2) locks the bearing member (11).

3. The support structure according to claim 2, characterized in that, The drive assembly (2) further includes a detection unit. Under the second operating condition, the detection unit detects the actual load of each drive component (20) and adjusts the output state of the drive component (20) according to the actual load.

4. The support structure according to claim 3, characterized in that, In the second operating condition, each of the drive members (20) maintains its own output state and maintains the angle between the support member (3) and the carrier member (11).

5. The support structure according to claim 1, characterized in that, The drive assembly (2) further includes an adjustment component (21) and multiple adapters (22). The adapters (22) are configured one-to-one with the drive components (20). The adjustment component (21) is connected to multiple drive components (20) through multiple adapters (22). The adjustment component (21) is used to control the output state of each drive component (20).

6. The support structure according to claim 5, characterized in that, The drive member (20) has a first segment (201) and a second segment (202) opposite to each other. The first segment (201) is connected to the adapter (22), and the second segment (202) is connected to the support member (3). The second segment (202) can extend and retract relative to the first segment (201) to adjust the angle between the support member (3) and the leveling component (1).

7. The support structure according to claim 5, characterized in that, The drive assembly (2) is connected to the external structure fluid circuit, and the drive element (20) is connected to the regulating element (21) through the adapter (22).

8. The support structure according to claim 1, characterized in that, The support member (3) is a plate-shaped structure. The support member (3) has a connecting end (30) and a free end (31). The connecting end (30) is connected to the bearing member (11). The free end (31) is used to support the ground. The lateral dimension of the free end (31) is larger than the lateral dimension of the connecting end (30), and adjacent support members (3) are spaced apart.

9. The support structure according to claim 1, characterized in that, Each of the support members (3) has a compliant contact member (4) on its lower surface. The compliant contact member (4) is used to absorb ground undulations and increase the friction between the support member (3) and the ground. And / or, the connector (10) includes a ball end (101), the carrier (11) includes a ball-and-socket structure that mates with the ball end (101), the ball end (101) is accommodated within the ball-and-socket structure, and the carrier (11) is omnidirectionally rotatable relative to the connector (10).

10. A crane, characterized in that, The support structure includes any one of claims 1 to 9.

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