Movable multi-degree-of-freedom crane in limited space
By designing a multi-degree-of-freedom crane with adjustable cantilevers, rotating chassis and detachable structures, flexible operation problems in narrow spaces are solved, efficient and flexible heavy lifting operations are achieved, and the adaptability and safety of the equipment are improved.
Patent Information
- Application Number
- CN202422161688.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The use of existing mobile cranes in small spaces is limited, making it difficult to achieve flexible deployment and efficient operation.
A movable multi-degree-of-freedom crane including cantilevers, columns and bases is designed with a structure with adjustable cantilever length and angle, a rotatable chassis and adjustable hook height, equipped with universal wheels and a removable design to support flexible operation in tight spaces.
It realizes efficient and flexible operation in a limited space, adapts to the operation needs of different complex environments, improves the portability and adaptability of the equipment, and ensures the accuracy and safety of heavy lifting.
Smart Images
Figure CN223292189U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of equipment, and in particular relates to a movable multi-freedom crane in a limited space. Background Art
[0002] Mobile cranes, as highly flexible and versatile lifting and handling equipment, are widely used in various scenarios. Their portability and rapid deployment capabilities are particularly outstanding, making them an ideal tool for improving work efficiency. However, the use of large lifting equipment is restricted in small spaces such as workshops. Utility Model Content
[0003] The purpose of the utility model is to provide a movable multi-freedom crane in a limited space.
[0004] The utility model is realized according to the following technical solutions.
[0005] A movable multi-degree-of-freedom crane in a confined space comprises a cantilever, a column and a base connected in sequence up and down, the cantilever comprises a transfer arm and an extension arm movably connected in the transfer arm, the transfer arm comprises a transfer joint and a fixed arm, the column comprises an upper column, a middle column and a lower column movably connected in sequence from top to bottom, the upper column comprises a joint and a fixed column, the base comprises a universal chassis and a chassis seat movably installed below the universal chassis, a universal wheel is provided below the chassis seat, the lower column is fixedly connected to the universal chassis, a counterweight slot and a winch are also provided on the universal chassis, and the wire rope on the winch is connected to a hook.
[0006] The beneficial effects of the utility model are:
[0007] First, the utility model has good operability in a limited space, is easy to carry and transport, can be pushed to a designated location over short distances, and can be transported by users' small or medium-sized trucks over long distances.
[0008] Second, it is detachable for easy transportation and storage.
[0009] Third, the height is adjustable, the cantilever is retractable, the cantilever angle is adjustable, the horizontal space can be rotated 360° and the hook height is adjustable. The mass range of the lifted object is controllable, which can adapt to the operation needs in different complex and narrow spaces. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the utility model;
[0011] Figure 2 is a schematic diagram of the transfer arm;
[0012] Figure 3 is a schematic diagram of the extension arm;
[0013] Figure 4 It is a schematic diagram of the upper column;
[0014] Figure 5 It is a schematic diagram of the center column;
[0015] Figure 6 It is a schematic diagram of the combination of the lower column, universal chassis, counterweight slot and winch;
[0016] Figure 7 This is a schematic diagram of the chassis seat;
[0017] Figure 8 It is a schematic diagram of the combination of wire rope and hook.
[0018] Among them, 1-cantilever, 11-adapter arm, 111-adapter, 1111-first round hole, 1112-first positioning hole, 112-fixed arm, 1121-third positioning hole, 113-fixed pulley, 114-first support block, 1141-first inner groove, 1142-first fixed pulley, 12-extension arm, 121-fourth positioning hole, 122-second support block, 1221-second inner groove, 1222-second fixed pulley, 2-column, 2 1-upper column, 211-connector, 2111-second round hole, 2112-second positioning hole, 212-fixed column, 2121-fifth positioning hole, 22-middle column, 221-sixth positioning hole, 23-lower column, 231-seventh positioning hole, 3-base, 31-universal chassis, 311-axis hole, 32-chassis seat, 321-fixed axis, 33-universal wheel, 4-counterweight slot, 5-winch, 6-wire rope, 7-hook, 8-connector. DETAILED DESCRIPTION
[0019] The technical solution of the present utility model is further described below with reference to the accompanying drawings and embodiments.
[0020] like Figure 1-8 As shown, a movable multi-degree-of-freedom crane in a confined space includes a cantilever 1, a column 2 and a base 3 connected in sequence from top to bottom, the cantilever 1 includes a connecting arm 11 and an extension arm 12 movably connected in the connecting arm 11, the connecting arm 11 includes a connecting joint 111 and a fixed arm 112, the column 2 includes an upper column 21, a middle column 22 and a lower column 23 movably connected from top to bottom, the upper column 21 includes a joint 211 and a fixed column 212, the base 3 includes a universal chassis 31 and a chassis seat 32 movably installed below the universal chassis 31, a universal wheel 33 is provided below the chassis seat 32, the lower column 23 is fixedly connected to the universal chassis 31, and a counterweight slot 4 and a winch 5 are also provided on the universal chassis 31, and the wire rope 6 on the winch 5 is connected to the hook 7.
[0021] The movable multi-degree-of-freedom crane in a confined space has an adapter 111 and a joint 211 that are both groove-type structures. A pair of first circular holes 1111 are symmetrically provided on the adapter 111, and a pair of second circular holes 2111 are symmetrically provided on the joint 211. The first circular holes 1111 and the second circular holes 2111 are movably connected by a pin shaft. First positioning holes 1112 are radially distributed around the first circular hole 1111, and second positioning holes 2112 are radially distributed around the second circular hole 2111. A positioning pin can be inserted between the first positioning hole 1112 and the second positioning hole 2112.
[0022] The movable multi-degree-of-freedom crane in a confined space, whose fixed arm 112 and extension arm 12 are both rectangular shell structures, is provided with a plurality of third positioning holes 1121 on the fixed arm 112, and a plurality of fourth positioning holes 121 on the extension arm 12, and a positioning pin can be inserted between the third positioning holes 1121 and the fourth positioning holes 121, the fixed column 212 is provided with a plurality of fifth positioning holes 2121, the middle column 22 is provided with a plurality of sixth positioning holes 221, and the lower column 23 is provided with a plurality of seventh positioning holes 231, a positioning pin can be inserted between the fifth positioning hole 2121 and the sixth positioning hole 221, and a positioning pin can be inserted between the sixth positioning hole 221 and the seventh positioning hole 231.
[0023] The movable multi-degree-of-freedom crane in a limited space has an axial hole 311 provided on its universal chassis 31, in which a rotating bearing is installed. A fixed shaft 321 is provided on the chassis seat 32, and the fixed shaft 321 is installed in cooperation with the rotating bearing in the axial hole 311.
[0024] The movable multi-degree-of-freedom crane in a confined space is provided with a fixed pulley 113 on its adapter 111, and the fixed pulley assemblies are respectively fixedly provided on the fixed arm 112 and the extension arm 12, and the fixed pulley assemblies on the fixed arm 112 and the extension arm 12 respectively include a first support block 114 and a second support block 122, and the first support block 114 and the second support block 122 are respectively provided with a first inner groove 1141 and a second inner groove 1221, and the first inner groove 1141 and the second inner groove 1221 are respectively installed with a first fixed pulley 1142 and a second fixed pulley 1222, and the winch 5 is wound with a wire rope 6, and the wire rope 6 is rotatably connected to the hook 7 through the fixed pulley 113, the first fixed pulley 1142 and the second fixed pulley 1222.
[0025] The adapter 111 and the connector 211 are fixedly connected.
[0026] The fixing column 212 , the middle column 22 and the lower column 23 are all hollow cylinders, and the lower column 23 is symmetrically provided with reinforcing ribs on both sides.
[0027] The counterweight slot 4 can be used to connect multiple independent counterweight blocks.
[0028] The steel wire rope 6 and the hook 7 are connected by a connector 8. Specifically, the connector 8 is a groove-shaped structure. The steel wire rope 6 is connected to the bottom of the groove of the connector 8 through a pin, and the hook 7 is connected to the inside of the groove of the connector 8 through a pin.
[0029] The size of the first circular hole 1111 on the adapter 111 is Φ100mm, and there are 5 Φ20mm first positioning holes 1112 arranged equidistantly in a circle with R100mm. The fixed arm 112 is a square groove structure with an inner size of 100×100mm, and there are 9 Φ20mm third positioning holes 112 with a spacing of 100mm.
[0030] The extension arm 12 is a square shell with a size of 100×100 mm and 9 fourth positioning holes 121 with a diameter of 20 mm and a spacing of 100 mm.
[0031] The size of the second circular hole 2111 on the joint 211 is Φ100mm, and there are 5 Φ20mm second positioning holes 2112 arranged in a circle with an equal distance of R100mm. The fixed column 212 is a hollow cylindrical structure with an outer dimension of Φ120mm, and has 5 Φ20mm fifth positioning holes 2121 with a spacing of 80mm; the middle column 22 is a hollow cylindrical structure with an inner dimension of Φ120mm and an outer dimension of Φ160mm, and has 5 Φ20mm sixth positioning holes 221 with a spacing of 80mm; the lower column 23 is a hollow cylindrical structure with an inner dimension of Φ160mm, and has 5 Φ20mm seventh positioning holes 231 with a spacing of 80mm.
[0032] The size of the fixed shaft 321 on the chassis seat 32 is Φ200 mm.
[0033] The size of the steel wire rope 6 is Φ10 mm.
[0034] A positioning pin can be inserted between the first positioning hole 1112 and the second positioning hole 2112 , and the cantilever angle can be adjusted by adjusting the corresponding first positioning hole 1112 and the second positioning hole 2112 .
[0035] A positioning pin can be inserted between the third positioning hole 1121 and the fourth positioning hole 121 , and the cantilever length can be adjusted by adjusting the corresponding third positioning hole 1121 and the fourth positioning hole 121 .
[0036] The upper column 21 , the middle column 22 and the lower column 23 are sequentially sleeved from top to bottom, and the cantilever height can be adjusted by adjusting the corresponding fifth positioning hole 2121 , the sixth positioning hole 221 and the seventh positioning hole 231 .
[0037] The winch 5 is wound with a steel wire rope 6, which is rotatably connected to a hook 7 through a fixed pulley 113, a first fixed pulley 1142 and a second fixed pulley 1222. The winch 5 can be rotated to adjust the length of the steel wire rope 6, thereby achieving the desired height of the hook.
[0038] The fixed shaft 321 is installed in cooperation with the rotating bearing in the shaft hole 311, and the universal chassis 31 can rotate 360 degrees, thereby achieving the purpose of operation in different directions.
[0039] The bottom of the chassis seat 32 is provided with four universal wheels 33 for movement.
[0040] This crane not only achieves a perfect combination of portability and disassembly, but also offers exceptional mobility. Its universal wheels allow for easy maneuvering through narrow spaces and the ability to adjust operating positions at any time. Its unique universal chassis design supports 360° rotation within horizontal space, ensuring efficient operation from any direction, significantly expanding its operational scope and flexibility.
[0041] The flexible column height adjustment function enables the crane to easily cope with lifting requirements of different heights, whether working in low spaces or at high altitudes. The telescopic and angle adjustment mechanism of the cantilever further enhances the adaptability of the equipment, and can accurately match it to achieve the best working effect in both compact working environments and spacious open spaces.
[0042] Particularly noteworthy is the freely adjustable hook height, cantilever angle, and horizontal rotation angle of the universal chassis. This design greatly enhances the precision of lifting and positioning heavy objects, easily handling heavy objects anywhere within the lifting radius, meeting the lifting needs of objects of varying positions, sizes, and weights. Furthermore, by replacing counterweights of varying weights, the crane can flexibly adjust its lifting capacity, ensuring each operation is completed safely and efficiently.
[0043] In summary, the utility model, with its excellent portability, flexibility, adaptability and efficiency, demonstrates extraordinary lifting and handling capabilities in a limited space, and will become an indispensable and important tool in daily production in a limited space.
[0044] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, several improvements, modifications or changes can be made, and the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the present invention to other occasions without improvement, should be regarded as the scope of protection of the present invention.
Claims
1. A mobile multi-degree-of-freedom crane in a limited space, characterized in that: The invention comprises a cantilever (1), a column (2) and a base (3) connected in sequence from top to bottom, wherein the cantilever (1) comprises a transfer arm (11) and an extension arm (12) movably connected in the transfer arm (11), the transfer arm (11) comprises a transfer joint (111) and a fixed arm (112), the column (2) comprises an upper column (21), a middle column (22) and a lower column (23) movably connected in sequence from top to bottom, the upper column (21) comprises a joint (23) 11) and a fixed column (212), the base (3) includes a universal chassis (31) and a chassis seat (32) movably installed below the universal chassis (31), a universal wheel (33) is provided below the chassis seat (32), the lower column (23) is fixedly connected to the universal chassis (31), the universal chassis (31) is further provided with a counterweight slot (4) and a winch (5), and the wire rope (6) on the winch (5) is connected to a hook (7).
2. The mobile multi-degree-of-freedom crane in a limited space according to claim 1, characterized in that: The adapter (111) and the joint (211) are both groove-type structures. A pair of first circular holes (1111) are symmetrically provided on the adapter (111), and a pair of second circular holes (2111) are symmetrically provided on the joint (211). The first circular hole (1111) and the second circular hole (2111) are movably connected via a pin shaft. First positioning holes (1112) are evenly distributed radially around the first circular hole (1111), and second positioning holes (2112) are evenly distributed radially around the second circular hole (2111). A positioning pin can be inserted between the first positioning hole (1112) and the second positioning hole (2112).
3. The mobile multi-degree-of-freedom crane in a limited space according to claim 1, characterized in that: The fixed arm (112) and the extension arm (12) are both rectangular shell structures. The fixed arm (112) is provided with a plurality of third positioning holes (1121), and the extension arm (12) is provided with a plurality of fourth positioning holes (121). Positioning pins can be inserted between the third positioning holes (1121) and the fourth positioning holes (121). The fixed column (212) is provided with a plurality of fifth positioning holes (2121). The middle column (22) is provided with a plurality of sixth positioning holes (221). The lower column (23) is provided with a plurality of seventh positioning holes (231). Positioning pins can be inserted between the fifth positioning holes (2121) and the sixth positioning holes (221), and between the sixth positioning holes (221) and the seventh positioning holes (231).
4. The mobile multi-degree-of-freedom crane in a limited space according to claim 1, characterized in that: The universal chassis (31) is provided with an axis hole (311), a rotating bearing is installed in the axis hole (311), and the chassis seat (32) is provided with a fixed axis (321), and the fixed axis (321) is installed in conjunction with the rotating bearing in the axis hole (311).
5. The mobile multi-degree-of-freedom crane in a limited space according to claim 1, characterized in that: The adapter (111) is provided with a fixed pulley (113), and the fixed arm (112) and the extension arm (12) are respectively fixedly provided with fixed pulley assemblies, and the fixed pulley assemblies on the fixed arm (112) and the extension arm (12) respectively include a first support block (114) and a second support block (122), and the first support block (114) and the second support block (122) are respectively provided with a first inner groove (1141) and a second inner groove (1221), and the first fixed pulley (1142) and the second fixed pulley (1222) are respectively installed in the first inner groove (1141) and the second inner groove (1221), and a steel wire rope (6) is wound around the winch (5), and the steel wire rope (6) passes through the fixed pulley (113), the first fixed pulley (1142) and the second fixed pulley (1222) and is rotatably connected to the hook (7).