Spider type crane and hoisting mechanism

Abstract

The utility model discloses a spider-type crane and a hoisting mechanism, the spider-type crane comprises a mounting platform, a lifting mechanism, a lifting mechanism and a lifting mechanism, the mounting platform is provided with a first accommodating space; a movement mechanism; the hoisting mechanism is rotatably arranged on the mounting platform, a second accommodating space is formed in the hoisting mechanism, the hoisting mechanism has a hoisting retracting state and a hoisting working state, and when the hoisting mechanism is in the hoisting retracting state, the hoisting mechanism is in the hoisting working state. At least part of the hoisting mechanism is located in the first containing space and the second containing space. According to the spider type crane disclosed by the utility model, when a hoisting task does not need to be carried out, the hoisting mechanism is partially folded into the first accommodating space and the second accommodating space, so that not only is the space saved, but also the hoisting mechanism is protected, and the spider type crane is compact in structure and has good maneuvering characteristics; and the device can play an important role even in a very limited working environment.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a spider crane and a lifting mechanism. Background Art

[0002] As noted in related literature, a crane is a mechanical device used to lift, lower, or move heavy objects. It is widely used in construction sites, factories, warehouses, ports, and many other locations where heavy materials or cargo need to be moved. Cranes come in many different types and designs, depending on their intended use and working environment. However, their fundamental function remains the same: to reduce the burden of manual labor and improve work efficiency through mechanical means. However, in some environments with limited space and complex surface conditions, existing cranes are unable to perform the task. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a spider crane with a compact structure that can complete lifting tasks in a narrow or complex working environment.

[0004] The utility model also provides a lifting mechanism.

[0005] The spider crane according to the first aspect of the present invention includes: a mounting platform, the mounting platform forming a first accommodating space; a moving mechanism, the moving mechanism being fixed under the mounting platform; a lifting mechanism, the lifting mechanism being rotatably arranged on the mounting platform, the lifting mechanism forming a second accommodating space, the lifting mechanism having a lifting and stowing state and a lifting working state, the lifting mechanism being switchable between the lifting and stowing state and the lifting working state, wherein, when the lifting mechanism is in the lifting and stowing state, at least part of the lifting mechanism is located in the first accommodating space and the second accommodating space.

[0006] According to the spider crane of the present invention, when there is no need to perform lifting tasks, by folding parts of the lifting mechanism into the first and second accommodating spaces, not only space is saved but also the lifting mechanism itself is protected. When it is necessary to perform lifting tasks, these parts can be unfolded to the working position, that is, the lifting working state, through the corresponding mechanical structure. The spider crane has a compact structure and good maneuverability, and can play an important role even in a very limited working environment.

[0007] In some possible implementations of the present application, the mounting platform includes: a frame; a slewing device, which is arranged on the frame; a turntable, one end of which is connected to the slewing device and is rotatable relative to the frame, and the first accommodating space is formed on the turntable, and the first accommodating space is used to accommodate at least part of the lifting mechanism when it is in the lifting and retracted state.

[0008] In some possible implementations of the present application, the lifting mechanism includes: an inner arm, one end of the inner arm is connected to the other end of the turntable, the inner arm is rotatable relative to the turntable in a first direction, and the second accommodating space is formed on the inner arm, the second accommodating space is used to accommodate at least part of the lifting mechanism in the lifting and retracted state; a telescopic arm, one end of the telescopic arm is connected to the other end of the inner arm, and the telescopic arm is rotatable relative to the inner arm in a first direction; a flying arm, one end of the flying arm is connected to the other end of the telescopic arm, the other end of the flying arm is connected to the lifting part, and the flying arm is rotatable relative to the telescopic arm in the first direction.

[0009] In some possible implementations of the present application, when the lifting mechanism switches from the lifting working state to the lifting retracted state, the flying arm rotates toward the telescopic arm, the telescopic arm contracts and rotates toward the inner arm, the inner arm rotates toward the turntable, the other end of the telescopic arm and the one end of the flying arm are both located in the first accommodating space, and the other end of the flying arm is located in the second accommodating space.

[0010] In some possible implementations of the present application, the turntable includes a first luffing cylinder, which is connected between the turntable and one end of the inner arm, and is used to drive the inner arm to rotate in a first direction relative to the turntable; the inner arm includes a second luffing cylinder, which is connected between the inner arm and the telescopic arm, and is used to drive the telescopic arm to rotate in a first direction relative to the inner arm; the telescopic arm includes a third luffing cylinder, which is connected between the telescopic arm and the flying arm, and is used to drive the flying arm to rotate in a first direction relative to the telescopic arm.

[0011] In some possible implementations of the present application, the telescopic arm includes: a fixed arm and multiple movable arms, the multiple movable arms are sequentially arranged in the fixed arm, and the movable arm is driven by a first telescopic cylinder to telescope in the fixed arm along the length direction of the fixed arm; the flying arm includes: a main arm and multiple extension arms, the multiple extension arms are sequentially arranged in the main arm, and the extension arms are driven by a second telescopic cylinder to telescope in the main arm along the length direction of the main arm.

[0012] In some possible implementations of the present application, the spider crane further includes: a support mechanism, wherein the support mechanism is connected to the mounting platform, the support mechanism has a support retracted state and a support working state, and the support mechanism switches between the support retracted state and the support working state.

[0013] In some possible implementations of the present application, the support mechanism includes a plurality of leg assemblies, which are evenly spaced around the circumference of the frame, and each of the leg assemblies includes: a leg swivel seat, a leg body, and a leg boom cylinder. The leg swivel seat is rotatably connected to the frame in a second direction, one end of the leg body is rotatably connected to the leg swivel seat in a first direction, and the other end of the leg body is connected to a foot plate. The leg boom cylinder is connected between the leg body and the leg swivel seat for driving the leg body to rotate around the leg swivel seat.

[0014] In some possible implementations of the present application, when the support mechanism is in the support folded state, the leg assemblies on both sides of the frame in the width direction are stacked in the width direction of the frame, and the leg assemblies are all located above the motion mechanism; when the support mechanism is in the support working state, each of the leg assemblies rotates in the second direction toward away from the frame, and the foot plate is suitable for contacting the ground.

[0015] In some possible implementations of the present application, the spider crane also includes: a drive device, which is connected to the motion mechanism to drive the motion mechanism to move; a control module, which is electrically connected to the drive device, and the control module is electrically connected to the first luffing cylinder, the second luffing cylinder, the third luffing cylinder, the first telescopic cylinder, the second telescopic cylinder, and the outrigger luffing cylinder.

[0016] The lifting mechanism according to the embodiment of the second aspect of the present utility model is the lifting mechanism of the spider crane according to the embodiment of the first aspect of the present utility model.

[0017] The lifting mechanism of the present invention not only improves the space utilization of the lifting equipment but also enhances its flexibility and adaptability in confined or complex working environments. By designing the lifting mechanism to be stowed within the first and second storage spaces when not in use, it ensures both convenient transportation and good operating performance, enabling efficient lifting operations even in confined spaces.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a spider crane according to an embodiment of the present invention, wherein the spider crane is in a hoisted and stowed state;

[0020] Figure 2 yes Figure 1 A schematic diagram of the spider crane from another angle shown in ;

[0021] Figure 3 yes Figure 1 A schematic diagram of the spider crane from another angle shown in FIG.

[0022] Figure 4 yes Figure 3 A schematic cross-sectional view of the spider crane at AA shown in FIG.

[0023] Figure 5 is a schematic diagram of a spider crane according to an embodiment of the present invention, wherein the spider crane is in a lifting working state;

[0024] Figure 6 yes Figure 5 A schematic diagram of the spider crane from another angle shown in ;

[0025] Figure 7 yes Figure 5 Schematic diagram of the telescopic arm shown in;

[0026] Figure 8 yes Figure 5 Schematic diagram of the fly arm shown in;

[0027] Figure 9 yes Figure 5 A schematic diagram of the first connection component shown in ;

[0028] Figure 10 yes Figure 5 A schematic diagram of the second connection component shown in;

[0029] Figure 11 yes Figure 5 A schematic diagram of the third connected component shown in ;

[0030] Figure 12 yes Figure 5 A schematic diagram of the leg assembly shown in ;

[0031] Figure 13 It is a hydraulic principle diagram of a spider crane according to an embodiment of the present utility model.

[0032] Reference numerals:

[0033] 100. Spider crane;

[0034] 1. Installation platform; 101. Frame;

[0035] 102. Rotating device; 1021. Rotating motor; 1022. Central rotating body;

[0036] 103, turntable; 1031, vertical plate; 1032, first rotating shaft;

[0037] 2. Motion mechanism; 201. First motion component; 202. Second motion component;

[0038] 3. Lifting mechanism;

[0039] 301, inner arm; 3011, first connecting assembly; 30111, first plate; 30112, second plate; 30113, first connecting shaft; 30114, second connecting shaft; 3012, arm plate;

[0040] 302, telescopic arm; 3021, second connecting assembly; 30211, second rotating shaft; 30212, assembly seat; 30213, assembly plate; 30214, third connecting shaft; 3022, fixed arm; 3023, moving arm;

[0041] 303, flying arm; 3031, third connecting assembly; 30311, first fixed seat; 30312, second fixed seat; 30313, first connecting rod; 30314, second connecting rod; 30315, third rotating shaft; 30316, first shaft; 30317, second shaft; 30318, third shaft; 3032, main arm; 3033, extension arm;

[0042] 4. Support mechanism; 401. Outrigger assembly; 4011. Outrigger swivel seat; 4012. Outrigger body; 4013. Outrigger boom cylinder; 4014. Outrigger plate; 4015. Outrigger telescopic cylinder;

[0043] 5. Drive device; 6. Control module;

[0044] 7. First storage space; 8. Second storage space;

[0045] 9. First luffing cylinder; 10. Second luffing cylinder; 11. Third luffing cylinder;

[0046] 12. First telescopic cylinder; 13. Second telescopic cylinder;

[0047] 14. Weight reduction hole; 15. Hydraulic oil tank; 16. Oil filter; 17. Hydraulic pump;

[0048] 18. Remote control proportional multi-way control valve; 19. One-way balancing valve; 20. Two-way balancing valve;

[0049] 21. Sequence valve; 22. Selector valve; 23. Directional valve;

[0050] 24. Hydraulic lock; 25. Pressure gauge. DETAILED DESCRIPTION

[0051] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0052] Reference below Figures 1-13 A spider crane 100 according to an embodiment of the first aspect of the present invention is described.

[0053] like Figures 1-13 As shown, the spider crane 100 according to the embodiment of the first aspect of the present utility model includes: a mounting platform 1, a motion mechanism 2 and a lifting mechanism 3.

[0054] Specifically, the mounting platform 1 is formed with a first accommodating space 7, the moving mechanism 2 is fixed under the mounting platform 1, the lifting mechanism 3 is rotatably provided on the mounting platform 1, and the lifting mechanism 3 is formed with a second accommodating space 8. The lifting mechanism 3 has a lifting and stowing state and a lifting working state. The lifting mechanism 3 can switch between the lifting and stowing state and the lifting working state. When the lifting mechanism 3 is in the lifting and stowing state, at least part of the lifting mechanism 3 is located in the first accommodating space 7 and the second accommodating space 8.

[0055] It will be appreciated that the spider crane 100 of the present invention is a compact and flexible lifting device, particularly suitable for use in situations where space is limited, ground load-bearing capacity is limited, or where conventional large cranes are unavailable. The mounting platform 1 is used to support other components. The first storage space 7 of the mounting platform 1 is used to accommodate a portion of the lifting mechanism 3 in the stowed state, reducing the overall volume for easier transportation and storage. The motion mechanism 2 is located below the mounting platform 1, enabling the entire device to be moved. The lifting mechanism 3 is located on the mounting platform 1 and can rotate relative to the mounting platform 1, thereby enabling lifting operations in different directions.

[0056] The lifting mechanism 3 itself forms a second accommodating space 8. In the non-working state (i.e., the hoisted and retracted state), part of the lifting mechanism 3 is accommodated in the second accommodating space 8. In short, in the hoisted and retracted state, part of the lifting mechanism 3 is located in the first accommodating space 7 and the second accommodating space 8, which reduces the floor area and occupied space volume of the lifting mechanism 3, and the above-mentioned retraction method can protect the components from damage.

[0057] According to the spider crane 100 of the embodiment of the present invention, when there is no need to perform lifting tasks, by folding part of the lifting mechanism 3 into the first accommodating space 7 and the second accommodating space 8, not only space is saved but also the lifting mechanism 3 itself is protected. When it is necessary to perform lifting tasks, these parts can be unfolded to the working position, that is, the lifting working state, through the corresponding mechanical structure. The spider crane 100 has a compact structure and good maneuverability, and can play an important role even in a very limited working environment.

[0058] Optionally, the motion mechanism 2 includes a wheeled type or a tracked type, but is not limited thereto. The wheeled type is suitable for movement on flat ground, and the tracked type is suitable for more complex terrain.

[0059] Optionally, a hook may be provided at the end of the lifting mechanism 3 for use as a crane, and an operating cabin may be provided for use as an aerial work vehicle, but the present invention is not limited thereto.

[0060] In some embodiments of the present invention, Figure 4 As shown, the mounting platform 1 includes: a frame 101, a rotating device 102 and a turntable 103. The rotating device 102 is arranged on the frame 101. One end of the turntable 103 is connected to the rotating device 102 and is rotatable relative to the frame 101. A first accommodating space 7 is formed on the turntable 103. The first accommodating space 7 is used to accommodate at least part of the lifting mechanism 3 when it is in a lifting and retracted state. That is to say, the frame 101 provides support for other components and is used to withstand various forces and torques generated during operation. The slewing device 102 is installed on the frame 101, allowing the components on the slewing device 102 to rotate relative to the frame 101. The operator can easily adjust the lifting position without moving the entire crane. The turntable 103 is located above the slewing device 102 and is connected to it, so that the turntable 103 can rotate around the rotation axis of the slewing device 102. The first accommodating space 7 is formed on the turntable 103. When the lifting mechanism 3 is in the lifting and retracted state, the lifting mechanism 3 is folded and a part of it is located in the first accommodating space 7 of the turntable 103. This reduces the occupied area of ​​the crane in the non-operating state and protects key parts from the influence of the external environment.

[0061] This not only improves the space utilization of spider crane 100, but also enhances its flexibility and adaptability, particularly in confined or complex working environments. By designing the lifting mechanism 3 so that it can be stored within the turntable 103 when not in use, it ensures both convenient transportation and excellent operating performance. Furthermore, because the turntable 103 can be easily changed in direction via the slewing mechanism 102, lifting tasks can be effectively performed even in confined spaces.

[0062] In some embodiments of the present invention, Figure 5-Figure 7As shown, the lifting mechanism 3 includes: an inner arm 301, a telescopic arm 302 and a flying arm 303, one end of the inner arm 301 is connected to the other end of the turntable 103, and the inner arm 301 is rotatable relative to the turntable 103 in a first direction, and a second accommodating space 8 is formed on the inner arm 301, and the second accommodating space 8 is used to accommodate at least part of the lifting mechanism 3 when it is in a hoisted and retracted state, one end of the telescopic arm 302 is connected to the other end of the inner arm 301, and the telescopic arm 302 is rotatable relative to the inner arm 301 in a first direction, one end of the flying arm 303 is connected to the other end of the telescopic arm 302, and the other end of the flying arm 303 is connected to the lifting part, and the flying arm 303 is rotatable relative to the telescopic arm 302 in the first direction.

[0063] It is understood that the inner arm 301 rotates relative to the turntable 103 about the axis of the connecting shaft between the inner arm 301 and the turntable 103. The second storage space 8 is formed on the inner arm. The other end of the fly arm 303 is located in the second storage space 8 when in the hoisted and stowed state. The other end of the telescopic arm 302 and one end of the fly arm 303 are both located in the first storage space 7 when in the hoisted and stowed state. The design of the entire lifting mechanism 3 takes into account compactness, flexibility, and versatility. When the crane is not in operation, each arm can be folded and stored in the corresponding storage space; when in the hoisting operation state, the combined action of multiple joints can achieve a wide coverage area and precise position control. Therefore, the spider crane 100 of the present embodiment is very suitable for applications that require efficient use of limited space while also requiring high maneuverability.

[0064] Here, it is particularly important to note that Figure 9 As shown, the turntable 103 includes two vertical plates 1031 arranged at intervals, both of which extend in the vertical direction, and a first accommodating space 7 is defined between the two vertical plates 1031. One end of the two vertical plates 1031 is connected to the rotating device 102, and the other end of the two vertical plates 1031 is formed with a first through hole, and one end of the inner arm 301 is formed with a second through hole. The turntable 103 and the inner arm 301 are rotatably connected by a first rotating shaft 1032 that penetrates the first through hole and the second through hole.

[0065] For example Figure 9As shown, the inner arm 301 includes a first connecting component 3011, which includes a first plate 30111 and a second plate 30112 arranged at intervals. A first connecting hole is formed on the first plate 30111, and a second connecting hole is formed on the second plate 30112. The first connecting hole and the second connecting hole are arranged opposite to each other, and a first connecting shaft 30113 is passed between the first connecting hole and the second connecting hole. The movable end of the first luffing cylinder 9 is sleeved on the first connecting shaft 30113, a third connecting hole arranged at intervals from the first connecting hole is formed on the first plate 30111, and a fourth connecting hole arranged at intervals from the second connecting hole is formed on the second plate 30112. The third connecting hole and the fourth connecting hole are arranged opposite to each other, and a second connecting shaft 30114 is passed between the third connecting hole and the fourth connecting hole. The fixed end of the second luffing cylinder 10 is sleeved on the second connecting shaft 30114, and weight reduction holes 14 are formed on both the first plate 30111 and the second plate 30112. There are two first connecting components 3011 , which are arranged on both sides of the inner arm 301 , so that the relative rotation between the inner arm 301 and the turntable 103 is more stable.

[0066] The inner arm 301 includes two arm plates 3012 arranged at an interval, and a second accommodating space 8 is defined between the two arm plates 3012 .

[0067] For example Figure 10 As shown, the telescopic arm 302 includes a second connecting assembly 3021 having a third through hole formed therein. A fourth through hole is formed at the other end of the inner arm 301. The inner arm 301 and the telescopic arm 302 are rotatably connected via a second rotating shaft 30211 that penetrates the third and fourth through holes. The second connecting assembly 3021 includes an assembly base 30212 and assembly plates 30213 disposed on either side of the assembly base 30212. The third through hole penetrates the assembly base 30212 and the assembly plate 30213. The second connecting assembly 3021 has a fifth connecting hole formed therein, which penetrates the assembly base 30212 and the assembly plate 30213. A third connecting shaft 30214 is passed through the fifth connecting hole. The movable end of the second luffing cylinder 10 is sleeved on the third connecting shaft 30214. The assembly base 30212 and the assembly plate 30213 have weight-reducing holes 14 formed therein.

[0068] For example Figure 11As shown, the flying arm 303 includes a third connecting component 3031, which is provided at one end of the flying arm 303. One end of the flying arm 303 is connected to the other end of the telescopic arm 302 through the third connecting component 3031 and rotates relatively. The third connecting assembly 3031 includes: a first fixed seat 30311, a second fixed seat 30312, a first connecting rod 30313 and a second connecting rod 30314, the first fixed seat 30311 is connected to one end of the flying arm 303, the second fixed seat 30312 is connected to the other end of the telescopic arm 302, a fifth through hole is formed on the first fixed seat 30311, a sixth through hole is formed on the second fixed seat 30312, the first fixed seat 30311 and the second fixed seat 30312 are rotatably connected by a third rotating shaft 30315 passing through the fifth through hole and the sixth through hole, a first hole is formed at one end of the first connecting rod 30313, a second hole is formed on the first fixed seat 30311, the first connecting rod 30313 and the first fixed seat 30311 are rotatably connected by a first shaft 30316 passing through the first hole and the second hole, a third hole is formed at one end of the second connecting rod 30314, the second fixed seat 3031 2, the second connecting rod 30314 and the second fixing seat 30312 are rotatably connected via the second shaft 30317 that penetrates the third and fourth holes. A fifth hole is formed at the other end of the first connecting rod 30313, and a sixth hole is formed at the other end of the second connecting rod 30314. The first connecting rod 30313 and the second connecting rod 30314 are rotatably connected via the third shaft 30318 that penetrates the fifth and sixth holes. The first connecting rod 30313 and the second connecting rod 30314 each include two first connecting rods 30313, which are arranged on both sides of the first fixing seat 30311. The two second connecting rods 30314 are respectively connected to the corresponding first connecting rods 30313 and are arranged on both sides of the first fixing seat 30311. The third shaft 30318 penetrates between the two first connecting rods 30313 and the two second connecting rods 30314. The fixed end of the third luffing cylinder 11 is sleeved on the third shaft 30318.

[0069] In some embodiments of the present invention, when the lifting mechanism 3 is switched from the lifting working state to the lifting stowed state (e.g. Figure 1 As shown in the lifting and stowing state, Figure 5 (As shown in the lifting operation state, the fly arm 303 rotates toward the telescopic arm 302, the telescopic arm 302 retracts and rotates toward the inner arm 301, and the inner arm 301 rotates toward the turntable 103. The other end of the telescopic arm 302 and one end of the fly arm 303 are both located in the first accommodation space 7, and the other end of the fly arm 303 is located in the second accommodation space 8. This ensures that the crane occupies minimal space when not in use, protects key lifting components from external environmental influences, and facilitates the transportation and storage of the crane, especially at work sites where frequent movement is required.

[0070] In some embodiments of the present invention, the turntable 103 includes a first luffing cylinder 9, which is connected between the turntable 103 and one end of the inner arm 301, and is used to drive the inner arm 301 to rotate in the first direction relative to the turntable 103. The inner arm 301 includes a second luffing cylinder 10, which is connected between the inner arm 301 and the telescopic arm 302, and is used to drive the telescopic arm 302 to rotate in the first direction relative to the inner arm 301. The telescopic arm 302 includes a third luffing cylinder 11, which is connected between the telescopic arm 302 and the flying arm 303, and is used to drive the flying arm 303 to rotate in the first direction relative to the telescopic arm 302.

[0071] It can be understood that the first luffing cylinder 9 is connected between the frame 101 and one end of the inner arm 301, and is used to drive the inner arm 301 relative to the turntable 103 in the first direction (such as Figure 5 The telescopic arm 302 is located on the inner arm 301 and is connected between the inner arm 301 and the telescopic arm 302 for driving the telescopic arm 302 to rotate in the first direction relative to the inner arm 301. The second luffing cylinder 10 allows the telescopic arm 302 to adjust its angle around the connection point with the inner arm 301, thereby increasing the working range and flexibility. The third luffing cylinder 11 is located on the telescopic arm 302 and is connected between the telescopic arm 302 and the fly arm 303 for driving the fly arm 303 to rotate in the first direction relative to the telescopic arm 302. The third luffing cylinder 11 allows the fly arm 303 to rotate around its connection point with the telescopic arm 302, thereby further expanding the possibilities of lifting operations.

[0072] When the hoisting mechanism 3 switches from the hoisting working state to the hoisting stowed state, the functions of the luffing cylinder are as follows:

[0073] The flying boom 303 rotates toward the telescopic boom 302: the third luffing cylinder 11 contracts, causing the flying boom 303 to rotate closer to the telescopic boom 302, until the flying boom 303 and the telescopic boom 302 are folded and tightly attached;

[0074] The telescopic arm 302 contracts and rotates toward the inner arm 301: the telescopic arm 302 first shortens its length through its own telescopic mechanism, and then the second luffing cylinder 10 is actuated to rotate the telescopic arm 302 toward the inner arm 301 until it is in close contact with the inner arm 301;

[0075] The inner arm 301 rotates toward the turntable 103: the first luffing cylinder 9 drives the inner arm 301 to rotate around the connection point with the turntable 103, making it close to the turntable 103, and finally the entire lifting mechanism 3 is compactly folded together.

[0076] In this process, each luffing cylinder plays a key role, ensuring that each part can be folded and stored correctly and safely. This not only improves the operational flexibility of the equipment, but also simplifies the storage and transportation process. Moreover, by precisely controlling the movement of each cylinder, an efficient and safe conversion process can be achieved.

[0077] In some embodiments of the present invention, Figure 7 As shown, the telescopic arm 302 includes: a fixed arm 3022 and a plurality of movable arms 3023, the plurality of movable arms 3023 are sequentially arranged in the fixed arm 3022, and the movable arms 3023 are driven by the first telescopic oil cylinder 12 to extend and retract in the fixed arm 3022 along the length direction of the fixed arm 3022; Figure 8 As shown, the flying arm 303 includes: a main arm 3032 and multiple extension arms 3033. The multiple extension arms 3033 are sequentially arranged in the main arm 3032. The extension arms 3033 are driven by the second telescopic cylinder 13 to extend and retract in the main arm 3032 along the length direction of the main arm 3032.

[0078] It can be understood that the fixed arm 3022 is the outermost part of the telescopic arm 302 and provides basic support for the entire telescopic mechanism. The multiple movable arms 3023 are nested in sequence inside the fixed arm 3022. Each movable arm 3023 can be extended or retracted relative to the fixed arm 3022, thereby increasing or decreasing the overall length of the telescopic arm 302. The first telescopic oil cylinder 12 is located between the fixed arm 3022 and the movable arm 3023 and is used to drive the movable arm 3023 to extend and retract along the length direction within the fixed arm 3022, and can accurately control the extension amount of each movable arm 3023.

[0079] The main arm 3032 is the outermost part of the flying arm 303, which is connected to the telescopic arm 302 and can rotate around the connection point. Multiple extension arms 3033 are nested in sequence inside the main arm 3032. Each extension arm 3033 can be extended and retracted relative to the main arm 3032, further increasing the working range of the flying arm 303. The second telescopic cylinder 13 is located between the main arm 3032 and the extension arm 3033, and is used to drive the extension arm 3033 to extend and retract along the length direction inside the main arm 3032, and can accurately control the extension amount of each extension arm 3033.

[0080] The working principle of the telescopic arm 302: When the telescopic arm 302 needs to be extended, the first telescopic cylinder 12 applies pressure to each movable arm 3023, driving the movable arm 3023 to extend from the fixed arm 3022. When the telescopic arm 302 needs to be shortened, the first telescopic cylinder 12 retracts and pulls the movable arm 3023 back into the fixed arm 3022.

[0081] The working principle of the flying boom 303: when the flying boom 303 needs to be extended, the second telescopic cylinder 13 drives each extension arm 3033 to extend from the main arm 3032; when the flying boom 303 needs to be shortened, the second telescopic cylinder 13 retracts and pulls the extension arm 3033 back into the main arm 3032.

[0082] This not only improves the operational flexibility of the crane, but also ensures that the equipment can be stored compactly and safely when not in use. Through the precise control of the hydraulic system, the lifting mechanism 3 can be easily deployed and folded.

[0083] Specifically, the first telescopic oil cylinder 12 includes multiple first telescopic oil cylinders 12, and the multiple first telescopic oil cylinders 12 are arranged in a one-to-one correspondence with the multiple moving arms 3023, and each first telescopic oil cylinder 12 can be driven individually; the second telescopic oil cylinder 13 includes multiple second telescopic oil cylinders 13, and the multiple second telescopic oil cylinders 13 are arranged in a one-to-one correspondence with the multiple extending arms 3033, and each second telescopic oil cylinder 13 can be driven individually.

[0084] Alternatively, a first telescopic cylinder 12 is provided between the fixed arm 3022 and the movable arm 3023 connected thereto, and a first telescopic cylinder 12 is provided between the other movable arms 3023; a second telescopic cylinder 13 is provided between the main arm 3032 and the extending arm 3033 connected thereto, and a second telescopic cylinder 13 is provided between the other extending arms 3033.

[0085] In some embodiments of the present invention, the spider crane 100 further includes: a support mechanism 4, the support mechanism 4 is connected to the mounting platform 1, the support mechanism 4 has a support retracted state and a support working state, and the support mechanism 4 switches between the support retracted state and the support working state.

[0086] Specifically, the support mechanism 4 includes a plurality of leg assemblies 401, and the plurality of leg assemblies 401 are evenly spaced around the circumference of the frame 101. Each leg assembly 401 includes: a leg swivel seat 4011, a leg body 4012, a leg boom-changing cylinder 4013 and a leg telescopic cylinder 4015. The leg swivel seat 4011 is rotatably connected to the frame 101 in the second direction, one end of the leg body 4012 is rotatably connected to the leg swivel seat 4011 in the first direction, and the other end of the leg body 4012 is connected to a foot plate 4014. The leg boom-changing cylinder 4013 is connected between the leg body 4012 and the leg swivel seat 4011, and is used to drive the leg body 4012 to rotate around the leg swivel seat 4011. The leg telescopic cylinder 4015 is arranged in the leg body 4012. Thus, multiple outrigger assemblies 401 are evenly spaced around the circumference of the frame 101, ensuring that the crane has sufficient support points in all directions, thereby providing all-round stability. The even distribution also helps to evenly disperse the weight, reduce the pressure on a single outrigger, and avoid local overload. This not only improves the operating efficiency and safety of the crane, but also provides reliable support under various complex ground conditions.

[0087] It is understood that the leg swivel seat 4011 is connected to the frame 101, allowing the leg assembly 401 to be rotated in the second direction (such as Figure 5 The support leg 4012 is a main support structure of the support mechanism 4. The length of the support leg 4012 can be changed by extending and retracting the support leg boom cylinder 4013 and the support leg telescopic cylinder 4015 to adapt to different ground conditions and work requirements. The support leg boom cylinder 4013 is connected between the support leg 4012 and the support leg swivel seat 4011. By controlling the extension and retraction of the support leg boom cylinder 4013 and the support leg telescopic cylinder 4015, the angle and length of the support leg can be adjusted to make it better contact the ground and provide stable support. The support leg plate 4014 is located at the end of the support leg body 4012 and directly contacts the ground, thereby increasing the contact area, reducing pressure, preventing settlement, and improving stability. The foot plate 4014 may also have an adjustable feature to allow for fine adjustments on uneven ground to keep the crane level.

[0088] When the outrigger mechanism switches from the support retracted state to the support working state: the outrigger swivel seat 4011 rotates first to unfold the outrigger body 4012 from the frame 101; the outrigger boom cylinder 4013 is actuated to push the outrigger body 4012 to rotate downward until the outrigger plate 4014 firmly contacts the ground; as needed, the outrigger body 4012 can be further extended to achieve the best support effect; finally, the entire support mechanism 4 is locked in the working position to ensure the stability of the crane.

[0089] When the outrigger mechanism switches from the supporting working state to the supporting retracted state: the outrigger boom cylinder 4013 contracts, pulling the outrigger body 4012 to rotate upward and leave the ground; the outrigger swivel seat 4011 rotates again, retracting the outrigger body 4012 and pressing it against the frame 101; the support mechanism 4 is locked in the retracted position, and the crane is ready to be moved or stored.

[0090] In some embodiments of the present invention, Figure 1 As shown, when the support mechanism 4 is in the support stowed state, the leg assemblies 401 on both sides of the frame 101 in the width direction are stacked in the width direction of the frame 101, and the leg assemblies 401 are all located above the motion mechanism 2; when the support mechanism 4 is in the supporting working state, each leg assembly 401 rotates in the second direction away from the frame 101, and the foot plate 4014 is suitable for contacting the ground. It can be understood that when the support mechanism 4 is in the support stowed state, the leg assemblies 401 on both sides of the frame 101 in the width direction are stacked in the width direction of the frame 101, overlapping each other to reduce the overall occupied space, and all the leg assemblies 401 are lifted and placed above the motion mechanism 2, ensuring that the legs will not collide with the ground or other obstacles during transportation, which not only improves the operational flexibility of the crane, but also ensures that the equipment can be compactly and safely stored when not in use.

[0091] In some embodiments of the present invention, Figure 1 and Figure 5 As shown, the spider crane 100 also includes a drive unit 5 and a control module 6. The drive unit 5 is coupled to the motion mechanism 2 to drive the motion mechanism 2. The control module 6 is electrically connected to the drive unit 5. The control module 6 is also electrically connected to the first luffing cylinder 9, the second luffing cylinder 10, the third luffing cylinder 11, the first telescopic cylinder 12, the second telescopic cylinder 13, and the outrigger luffing cylinder 4013. As a result, the spider crane 100 is capable of precise and efficient operation. The control module 6 not only simplifies the operation process but also improves safety, allowing the operator to focus more on the task at hand rather than worrying about the complex details of mechanical operation. This design also facilitates maintenance and troubleshooting, as the status of all key components can be monitored through the control module 6.

[0092] The control module 6 is the brain of the entire crane. It receives commands from the operator, converts them into specific action signals, and sends them to various actuators (such as cylinders and motors). The control module 6 may also have a monitoring function, capable of monitoring the crane's operating status in real time and issuing alarms or automatically taking protective measures when an anomaly occurs.

[0093] The operator can send commands via buttons, joysticks, or other input devices on the control panel. Upon receiving these commands, the control module 6 activates the corresponding cylinders or motors via electronic signals or a hydraulic control system. For example, if the operator needs to adjust the angle of the inner arm 301, the control module 6 sends a signal to the first luffing cylinder 9, causing it to extend or retract, thereby changing the position of the inner arm 301.

[0094] In some embodiments, the control module 6 typically has multiple built-in safety features, such as overload protection, anti-tipping system, emergency stop button, etc., to ensure the safety of operation. It may also include sensors and feedback systems to monitor the status of each component in real time and make automatic adjustments or shutdowns when necessary.

[0095] Optionally, the driving device 5 includes an engine, but is not limited thereto. The driving device 5 is not only used to drive the motion mechanism 2 to move, but is also used to drive the first luffing cylinder 9, the second luffing cylinder 10, the third luffing cylinder 11, the first telescopic cylinder 12, the second telescopic cylinder 13, the outrigger luffing cylinder 4013, the slewing device 102, and the outrigger slewing seat 4011 to perform corresponding actions;

[0096] Control module 6 includes, but is not limited to, a remote-controlled proportional multi-way control valve 18. The remote-controlled proportional multi-way control valve 18 precisely controls the hydraulic system through the interaction of electrical signals with the hydraulic system. This integration of electrical signal processing and hydraulic transmission technology allows for more flexible and efficient control of the hydraulic system. Specifically, to achieve precise proportional control, the proportional multi-way valve design ensures that flow rate is solely dependent on the valve core opening area and the inlet and outlet pressure differential of the hydraulic valve. By maintaining a constant inlet and outlet pressure differential, flow rate is controlled by the valve core stroke, thereby achieving precise proportional control regardless of load variations.

[0097] In some embodiments, the spider crane 100 further includes: a locking member, the first luffing cylinder 9, the second luffing cylinder 10, the third luffing cylinder 11, the first telescopic cylinder 12, the second telescopic cylinder 13, the outrigger luffing cylinder 4013, the slewing device 102 and the outrigger slewing seat 4011 are all provided with a locking member for locking the current position or angle to ensure safety and stability in the lifting and retracting state or the lifting working state.

[0098] For example Figure 5As shown, the motion mechanism 2 is a crawler type.

[0099] Refer to the following Figure 13 The hydraulic principle of the spider crane 100 according to the embodiment of the present invention is described in detail:

[0100] The spider crane 100 of the embodiment of the present utility model includes: a hydraulic oil tank 15, an oil filter 16, a hydraulic pump 17, a remote-controlled proportional multi-way control valve 18, a one-way balancing valve 19, a two-way balancing valve 20, a sequence valve 21, a selection valve 22, a reversing valve 23, a hydraulic lock 24 and a pressure gauge 25.

[0101] Specifically, the motion mechanism 2, the rotating device 102, the first luffing cylinder 9, the second luffing cylinder 10, the third luffing cylinder 11, the first telescopic cylinder 12, the second telescopic cylinder 13, the outrigger luffing cylinder 4013 and the outrigger telescopic cylinder 4015 are all actuators.

[0102] The hydraulic oil tank 15 has an oil distribution port, and the oil filter 16 is connected to the hydraulic oil tank 15 through the oil distribution port. The oil filter 16 is located between the hydraulic pump 17 and the hydraulic oil tank 15. The hydraulic pump 17 is located between the selection valve 22 and the oil filter 16. The selection valve 22 is located between the remote proportional multi-way control valve 18 and the hydraulic pump 17.

[0103] The remote-controlled proportional multi-way control valve 18 includes a first oil inlet and multiple first oil outlets. The motion mechanism 2 includes a first motion component 201 and a second motion component 202 arranged at intervals. The motion mechanism 2, the rotating device 102, the first luffing cylinder 9, the second luffing cylinder 10, the third luffing cylinder 11, the first telescopic cylinder 12, the second telescopic cylinder 13, the first motion component 201 and the second motion component 202 are all connected one-to-one with the multiple first oil outlets of the remote-controlled proportional multi-way control valve 18, and the hydraulic oil tank 15 is connected to the first oil inlet of the remote-controlled proportional multi-way control valve 18.

[0104] A one-way balancing valve 19 is provided between the first luffing cylinder 9 and the remote-controlled proportional multi-way control valve 18, a two-way balancing valve 20 is provided between the second luffing cylinder 10 and the remote-controlled proportional multi-way control valve 18, a two-way balancing valve 20 is provided between the third luffing cylinder 11 and the remote-controlled proportional multi-way control valve 18, a two-way balancing valve 20 is provided between the first telescopic cylinder 12 and the remote-controlled proportional multi-way control valve 18, a two-way balancing valve 20 is provided between the second telescopic cylinder 13 and the remote-controlled proportional multi-way control valve 18, and a sequence valve 21 is also provided on the telescopic arm 302, and a sequence valve 21 is also provided on the flying arm 303.

[0105] The rotating device 102 includes a rotating motor 1021 and a central rotating body 1022. The rotating motor 1021 is connected to the remote-controlled proportional multi-way control valve 18. The remote-controlled proportional multi-way control valve 18 also includes a first return oil port and a second return oil port. The first return oil port and the second return oil port are both connected to the hydraulic oil tank 15. The pressure gauge 25 is arranged on the remote-controlled proportional multi-way control valve 18.

[0106] The reversing valve 23 includes a second oil inlet and multiple second oil outlets. The outrigger boom cylinder 4013 and the outrigger telescopic cylinder 4015 are connected one-to-one with the multiple second oil outlets of the reversing valve 23. The hydraulic oil tank 15 is connected to the second oil inlet of the reversing valve 23. The outrigger assembly 401 includes four, each of which includes a outrigger boom cylinder 4013 and a outrigger telescopic cylinder 4015, and a one-way balancing valve 19 is arranged between each outrigger boom cylinder 4013 and the reversing valve 23. A hydraulic lock 24 is provided at each outrigger boom cylinder 4013, and a one-way balancing valve 19 is arranged between each outrigger telescopic cylinder 4015 and the reversing valve 23. The reversing valve 23 includes a third oil return port, which is connected to the hydraulic oil tank 15.

[0107] The lifting mechanism 3 according to the embodiment of the second aspect of the present invention is the lifting mechanism 3 of the spider crane 100 according to the embodiment of the first aspect of the present invention.

[0108] The hoisting mechanism 3 of the present invention not only improves the crane's space utilization but also enhances its flexibility and adaptability in confined or complex working environments. By designing the hoisting mechanism 3 to be stowable within the first and second accommodating spaces 7 and 8 when not in use, it ensures both convenient transportation and excellent operating performance, enabling efficient lifting operations even in confined spaces.

[0109] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0110] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0111] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0113] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A spider crane, characterized in that: include: An installation platform, wherein the installation platform is formed with a first accommodation space; A motion mechanism, the motion mechanism being fixed below the mounting platform; A lifting mechanism, wherein the lifting mechanism is rotatably arranged on the mounting platform, the lifting mechanism forms a second accommodating space, the lifting mechanism has a lifting and stowing state and a lifting working state, and the lifting mechanism is switchable between the lifting and stowing state and the lifting working state, wherein when the lifting mechanism is in the lifting and stowing state, at least a portion of the lifting mechanism is located in the first accommodating space and the second accommodating space.

2. The spider crane according to claim 1, characterized in that: The installation platform includes: Frame; A rotating device, the rotating device being arranged on the frame; A turntable, one end of which is connected to the rotating device and rotatable relative to the frame, the first accommodating space being formed on the turntable, and the first accommodating space being used to accommodate at least a portion of the lifting mechanism in the lifting and retracting state.

3. The spider crane according to claim 2, characterized in that: The lifting mechanism comprises: an inner arm, one end of the inner arm being connected to the other end of the turntable, the inner arm being rotatable relative to the turntable in a first direction, the second accommodation space being formed on the inner arm, the second accommodation space being configured to accommodate at least a portion of the lifting mechanism in the lifted and stowed state; a telescopic arm, one end of the telescopic arm being connected to the other end of the inner arm, the telescopic arm being rotatable relative to the inner arm in a first direction; A flying arm, one end of which is connected to the other end of the telescopic arm, the other end of which is connected to a hoisting member, and the flying arm is rotatable relative to the telescopic arm in a first direction.

4. The spider crane according to claim 3, characterized in that: When the lifting mechanism switches from the lifting working state to the lifting retracted state, the flying arm rotates toward the telescopic arm, the telescopic arm contracts and rotates toward the inner arm, the inner arm rotates toward the turntable, the other end of the telescopic arm and the one end of the flying arm are both located in the first accommodating space, and the other end of the flying arm is located in the second accommodating space.

5. The spider crane according to claim 4, characterized in that: The turntable includes a first luffing cylinder, which is connected between the turntable and one end of the inner arm and is used to drive the inner arm to rotate in the first direction relative to the turntable. The inner arm includes a second luffing cylinder, which is connected between the inner arm and the telescopic arm and is used to drive the telescopic arm to rotate in the first direction relative to the inner arm. The telescopic arm includes a third luffing cylinder, which is connected between the telescopic arm and the fly arm and is used to drive the fly arm to rotate in the first direction relative to the telescopic arm.

6. The spider crane according to claim 5, characterized in that: The telescopic arm includes: a fixed arm and multiple moving arms, the multiple moving arms are sequentially arranged in the fixed arm, and the moving arm is driven by a first telescopic cylinder to telescope within the fixed arm along the length direction of the fixed arm; the flying arm includes: a main arm and multiple extension arms, the multiple extension arms are sequentially arranged in the main arm, and the extension arms are driven by a second telescopic cylinder to telescope within the main arm along the length direction of the main arm.

7. The spider crane according to claim 6, characterized in that: Also includes: A support mechanism is connected to the mounting platform, the support mechanism has a support stowed state and a support working state, and the support mechanism switches between the support stowed state and the support working state.

8. The spider crane according to claim 7, characterized in that: The support mechanism includes a plurality of leg assemblies, which are evenly spaced around the circumference of the frame. Each of the leg assemblies includes: a leg swivel seat, a leg body and a leg boom-changing cylinder. The leg swivel seat is rotatably connected to the frame in a second direction, one end of the leg body is rotatably connected to the leg swivel seat in a first direction, and the other end of the leg body is connected to a foot plate. The leg boom-changing cylinder is connected between the leg body and the leg swivel seat for driving the leg body to rotate around the leg swivel seat.

9. The spider crane according to claim 8, characterized in that: When the support mechanism is in the support folded state, the leg assemblies on both sides of the frame in the width direction are stacked in the width direction of the frame, and the leg assemblies are all located above the movement mechanism; when the support mechanism is in the support working state, each of the leg assemblies rotates in the second direction toward away from the frame, and the foot plate is suitable for contacting the ground.

10. The spider crane according to any one of claims 5 to 9, characterized in that: Also includes: A driving device, the driving device and the motion mechanism drive the motion mechanism to move; A control module is electrically connected to the drive device, and the control module is electrically connected to the first luffing cylinder, the second luffing cylinder, the third luffing cylinder, the first telescopic cylinder, the second telescopic cylinder, and the outrigger luffing cylinder.

11. A lifting mechanism, characterized in that: The lifting mechanism is the lifting mechanism according to any one of claims 1 to 10.

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