Multi-lifting-point lifting appliance capable of automatically adjusting distance
Through the automatic distance adjustment multi-lift lifting sling, the position of the lifting point is adjusted using sensing technology and automatic control system, the problem that traditional spreaders cannot match the material connection points is solved, and the uniform stress and high pressure of material lifting is achieved Accurate lifting improves the efficiency and safety of lifting operations.
Patent Information
- Application Number
- CN202423028010.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-12-09
AI Technical Summary
When lifting materials with irregular shapes, traditional lifting slings are difficult to match the connection points of the materials, resulting in uneven stress, which may lead to material deformation or safety accidents, and cannot meet the needs of high-precision lifting, which increases assembly difficulty and Time cost.
Design a multi-lift lifting sling with automatic distance adjustment, use sensing technology to sense the position of material connection points, adjust the position of lifting points through automatic control and driving system, ensure the precise matching between lifting points and material connection points, and realize lifting points Flexible adjustment of spacing.
It realizes uniform stress and high-precision lifting during material lifting, improves safety and efficiency, is suitable for complex material lifting and high-precision installation scenarios, and improves the technical level and operating capabilities of the lifting industry.
Smart Images
Figure CN222331347U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slings, in particular to an automatic distance-adjusting multi-sling-point lifting sling. Background Art
[0002] In the field of lifting operations in modern industry, traditional lifting equipment has many limitations when it comes to lifting materials with irregular shapes, multiple connection points, or high lifting position accuracy requirements.
[0003] Traditional lifting equipment is often designed with fixed lifting points, such as the common single-lifting point hook or multi-lifting point hanger with fixed spacing. When faced with large materials with complex shapes, these materials may have specially designed connection points on their surface or inside, and the location of these connection points does not always match the fixed-lifting point hanger. If a fixed-lifting point hanger is used for forced lifting, it may cause uneven force on the material. This uneven force will cause local deformation of the material during the lifting process, affecting the quality of the material and subsequent processing and use; in severe cases, it may cause serious safety accidents such as slipping and tipping of the material during the lifting process, causing great damage to personnel and equipment.
[0004] In addition, in some occasions that require high-precision lifting, such as the assembly of large mechanical equipment, the various components of the equipment need to be accurately positioned to the installation position during lifting. The sling with fixed lifting points cannot adjust the position of the lifting points according to the slight changes in the connection points of the components, making it difficult to meet the requirements of precise installation, which increases the difficulty and time cost of assembly and reduces work efficiency.
[0005] In order to solve these problems, multi-point lifting slings with automatic distance adjustment came into being. This new type of sling can flexibly adjust the position of the lifting points in the sling according to the position of the material and the design of the connection point. It can sense the position information of the material connection point through advanced sensing technology, and then use the automatic control and drive system to achieve precise adjustment of the lifting point spacing, thereby ensuring that each lifting point can accurately act on the corresponding connection point of the material, so that the material is evenly and stably stressed during the lifting process, which not only ensures the safety of lifting, but also meets the requirements of high-precision lifting operations, greatly improving the efficiency and quality of lifting operations in complex material lifting and high-precision installation scenarios. This multi-point lifting sling with automatic distance adjustment is of great significance to improving the technical level and operating capacity of the lifting industry. Utility Model Content
[0006] In order to solve the above problems, an embodiment of the utility model provides a lifting sling with a lifting point position adjustment function, which can adjust the position of the lifting point according to the usage scenario, and has a simple structure and is easy to use.
[0007] In order to achieve the above-mentioned purpose, the embodiment of the utility model specifically adopts the following technical scheme: an automatic adjustable multi-lifting point lifting sling, including a crossbeam, a first sling is arranged in the middle of the crossbeam, a second sling is arranged in the crossbeam, a avoidance hole for installing the first sling is arranged in the middle of the crossbeam, a mounting groove for installing the second sling is arranged in the middle of the crossbeam, a rotating device is arranged between the lower part of the first sling and the crossbeam, the second sling includes an adjusting seat slidably arranged in the mounting groove, a second hook is arranged at the lower part of the adjusting seat, and a driving device for driving the adjusting seat to move is arranged in the mounting groove.
[0008] As a further improvement of the above technical solution:
[0009] The first sling comprises a lifting hanger, a through hole coaxially designed with the avoidance hole is arranged in the middle of the lifting hanger, a sling is arranged in the through hole, a driving source is arranged at the upper part of the sling, and a first hook is arranged at the lower part.
[0010] The slewing device comprises a shell body located on the upper part of the cross beam, a toothed disc rotatably connected to the lifting hanger is arranged in the shell body, a driving gear is arranged on the outer side of the toothed disc, and a forward and reverse motor connected to the driving gear is arranged on the lifting hanger.
[0011] The number of the driving gears is two and they are symmetrically distributed with the center line of the toothed disc as the axis.
[0012] The driving device comprises a lead screw which is inserted into the adjusting seat, a servo motor is arranged at one end of the lead screw, and a bearing seat located at the end of the mounting groove is arranged at the other end of the lead screw.
[0013] An adjusting sleeve used in conjunction with a lead screw is arranged in the middle of the adjusting seat, running wheels are arranged on both sides of the adjusting seat, and a limiting boss used in conjunction with the running wheels is arranged on the inner side wall of the mounting groove.
[0014] The beneficial effects of the embodiments of the utility model are as follows: the automatic adjustable multi-hanging-point lifting sling comprises a crossbeam, a first hanger is installed in the middle of the crossbeam, a second hanger is arranged in the crossbeam, a avoidance hole for installing the first hanger is arranged in the middle of the crossbeam, a mounting groove for installing the second hanger is arranged in the middle of the crossbeam, the number of the mounting grooves is two and they are respectively located on both sides of the avoidance hole, a rotating device is arranged between the lower part of the first hanger and the crossbeam, the second hanger comprises an adjusting seat slidably installed in the mounting groove, a second hook is arranged at the lower part of the adjusting seat, and a driving device for driving the adjusting seat to move is arranged in the mounting groove, the distance between the second hanger and the first hanger can be changed by the driving device, so as to complete the distance change between the hanging points, the crossbeam can be driven to rotate by the rotating device, and then the position of the second hanger on the plane can be changed, and the position of the second hanger can be adjusted twice by the rotating device and the driving device. Compared with the existing adjustment method, the adjustment range is wider and can be applicable to more application scenarios, and the structure is simpler and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a side view of the utility model;
[0017] Figure 3 for Figure 2 Section along AA;
[0018] Figure 4 It is a structural schematic diagram of the rotary device in the utility model.
[0019] In the figure: 1. crossbeam; 2. first lifting fixture; 3. second lifting fixture; 4. avoidance hole; 5. mounting groove; 6. lifting bracket; 7. through hole; 8. sling; 9. driving source; 10. first lifting hook; 11. adjusting seat; 12. second lifting hook; 13. housing; 14. geared disc; 15. driving gear; 16. forward and reverse motor; 17. lead screw; 18. servo motor; 19. bearing seat; 20. adjusting sleeve; 21. walking wheel; 22. limiting boss. DETAILED DESCRIPTION
[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.
[0021] like Figure 1-4As shown, the automatic adjustable multi-point lifting sling of this embodiment includes a crossbeam 1, a first sling 2 is installed in the middle of the crossbeam 1, a second sling 3 is arranged in the crossbeam 1, a avoidance hole 4 for installing the first sling 2 is provided in the middle of the crossbeam 1, a mounting groove 5 for installing the second sling 3 is provided in the middle of the crossbeam 1, the number of the mounting grooves 5 is two and they are respectively located on both sides of the avoidance hole 4, a slewing device is provided between the lower part of the first sling 2 and the crossbeam 1, the second sling 3 includes an adjustment seat 11 slidably installed in the installation groove 5, and the adjustment seat 1 1 is provided with a second hook 12 at the lower part, and a driving device for driving the adjustment seat 11 to move is provided in the installation groove 5. The driving device can change the distance between the second sling 3 and the first sling 2, so as to change the distance between the hanging points. The slewing device can drive the crossbeam 1 to rotate, thereby driving the position of the second sling 3 on the plane to change. The second sling 3 can be adjusted twice by the slewing device and the driving device. Compared with the existing adjustment method, the adjustment range is wider and the structure is simpler, which is easy to operate.
[0022] The first sling 2 includes a lifting hanger 6, a through hole 7 coaxially designed with the avoidance hole 4 is provided in the middle of the lifting hanger 6, a sling 8 is provided in the through hole 7, a driving source 9 is provided at the upper part of the sling 8, and a first hook 10 is provided at the lower part. The driving source 9 includes a driving motor and a winding roller. The driving source 9 can be used to adjust the vertical height of the first hook 10 to ensure that the heights of the first sling 2 and the second sling 3 are the same.
[0023] The rotating device includes a shell 13 located on the upper part of the beam 1, and a gear plate 14 rotatably connected to the lifting bracket 6 is provided in the shell 13. A driving gear 15 is provided on the outer side of the gear plate 14. The lifting bracket 6 is provided with a forward and reverse motor 16 connected to the driving gear 15. The forward and reverse motor 16 can drive the gear plate 14 to rotate, thereby driving the beam 1 to rotate. The driving device can change the position of the second sling 3 in the plane, which can be applied to more lifting scenarios and improve the efficiency of equipment use.
[0024] There are two driving gears 15 , which are symmetrically distributed with the center line of the toothed disc 14 as an axis.
[0025] The driving device includes a screw 17 inserted into the adjustment seat 11, a servo motor 18 is installed at one end of the screw 17, and a bearing seat 19 located at the end of the mounting groove 5 is provided at the other end. The adjustment seat 11 is driven to slide in the mounting groove 5 by the rotation of the screw 17, thereby completing the distance adjustment between the first sling 2 and the second sling 3.
[0026] An adjusting sleeve 20 for use with the lead screw 17 is provided in the middle of the adjusting seat 11, and running wheels 21 are provided on both sides of the adjusting seat 11. A limiting boss 22 for use with the running wheel 21 is provided on the inner side wall of the mounting groove 5. The distance adjustment of the second sling 3 is completed by adjusting the sleeve 20 and cooperating with the lead screw 17 (i.e., the ball screw). The structure is simple and easy to operate.
[0027] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0028] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0029] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.
[0030] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims
1. An automatic adjustable-distance multi-point lifting sling, comprising a crossbeam (1), characterized in that: A first sling (2) is arranged in the middle of the crossbeam (1), and a second sling (3) is arranged inside the crossbeam (1); A avoidance hole (4) for installing the first sling (2) is provided in the middle of the crossbeam (1), and a mounting groove (5) for installing the second sling (3) is provided in the middle of the crossbeam (1); A rotating device is provided between the lower part of the first sling (2) and the crossbeam (1); The second lifting device (3) comprises an adjusting seat (11) slidably arranged in the installation groove (5), a second lifting hook (12) is arranged at the lower part of the adjusting seat (11), and a driving device for driving the adjusting seat (11) to move is arranged in the installation groove (5).
2. The multi-point lifting sling with automatic distance adjustment according to claim 1 is characterized in that: The first lifting device (2) comprises a lifting bracket (6), a through hole (7) coaxially designed with the avoidance hole (4) is arranged in the middle of the lifting bracket (6), a sling (8) is arranged in the through hole (7), a driving source (9) is arranged at the upper part of the sling (8), and a first hook (10) is arranged at the lower part.
3. The multi-point lifting sling with automatic distance adjustment according to claim 2 is characterized in that: The slewing device comprises a housing (13) located on the upper part of the crossbeam (1), a toothed disc (14) rotatably connected to the lifting bracket (6) is arranged in the housing (13), a driving gear (15) is arranged on the outer side of the toothed disc (14), and a forward and reverse motor (16) connected to the driving gear (15) is arranged on the lifting bracket (6).
4. The multi-point lifting sling with automatic distance adjustment according to claim 3 is characterized in that: The number of the driving gears (15) is two and they are symmetrically distributed with the center line of the toothed disc (14) as the axis.
5. The multi-point lifting sling with automatic distance adjustment according to claim 1 is characterized in that: The driving device comprises a lead screw (17) inserted into the adjustment seat (11), a servo motor (18) being provided at one end of the lead screw (17) and a bearing seat (19) located at the end of the mounting groove (5) being provided at the other end.
6. The multi-point lifting sling with automatic distance adjustment according to claim 5 is characterized in that: An adjusting sleeve (20) for use with the lead screw (17) is arranged in the middle of the adjusting seat (11), running wheels (21) are arranged on both sides of the adjusting seat (11), and a limiting boss (22) for use with the running wheels (21) is arranged on the inner side wall of the mounting groove (5).