Auxiliary hoisting assembly
By designing an auxiliary component for chimney hoisting of thermal power plants, using nuts, push rods and limit structures, the problem of rotation and angle adjustment of segmented components during lifting is solved, and a more stable and efficient lifting and assembly process is achieved.
Patent Information
- Application Number
- CN202520567613.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2035-03-28
AI Technical Summary
In thermal power plants, the outer cylinder of the reinforced concrete chimney may need to be opened at the same section, resulting in easy swing of segmented components during lifting and difficult to accurately adjust the angle.
A lifting auxiliary assembly is designed, including a hook assembly, by providing a first nut and an electric push rod on the connecting frame on the hook shaft, a guide is formed using a limit sleeve and a limit slide to control rotation and angle adjustment of the segmented assembly.
It effectively reduces the rotation of segmented components during the lifting process, ensures that it can be easy to rotate after the lifting is completed, reaches a preset installation angle, facilitates continuous lifting and assembly, and reduces the difficulty of high-altitude installation.
Smart Images
Figure CN222821109U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of hoisting auxiliary equipment, in particular to a hoisting auxiliary component. Background Art
[0002] With the rapid development of my country's economy and the continuous improvement of people's living standards, power resources play an increasingly important role. Although new power generation methods such as solar power generation, wind power generation, and tidal power generation have emerged, my country still mainly obtains power resources through thermal power generation. In thermal power plants, chimneys are important structures. Their safety performance is not only directly related to the safety of surrounding buildings, but once the chimney is damaged, it will seriously affect the normal operation of the city's lifeline. Domestic and foreign scholars have conducted a lot of research on chimney structures, including the influence of opening forms on the mechanical properties of chimney structures, the influence of different loads on the mechanical properties of chimney structures, the overall stability of chimney structures and related calculation methods. The "Chimney Design Code" (GB50051-2013) (hereinafter referred to as the Chimney Code) makes detailed provisions for the design of reinforced concrete chimney outer tube structures with a single hole at the same section and a hole angle not exceeding 70° or two holes with a single hole angle and the sum of the hole angle not exceeding 70° and 140° respectively. In the actual construction process, some domestic power plants use multiple thermal generators to share one chimney or pass the coal transport trestle through the chimney, which may result in more than two channels being opened in the same cross-section of the chimney outer tube.
[0003] The opening angle of the reinforced concrete chimney should meet the on-site requirements, which requires the steel structure embedded parts to be accurately positioned. The processed steel structure embedded parts are formed by hoisting a plurality of segmented components to be enclosed in a preset position, and the segmented components are pre-processed on the ground. During the hoisting process of the segmented components, it is necessary to reduce the swing of the segmented components caused by the wind during the hoisting process, so as to meet the safety requirements of the hoisted components. After the segmented components are hoisted to the preset position, it is necessary to further adjust the angle of the segmented components according to the chimney's requirements for the opening angle and the actual situation on site. Therefore, there is room for improvement in the existing technology to meet the needs of actual work. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a hoisting auxiliary component which can reduce the rotation of the hoisted component during the hoisting process and facilitate the rotation of the hoisted component after the hoisting is completed, so as to overcome the defects in the prior art.
[0005] The technical solution adopted by the utility model is: a lifting auxiliary component, including a hook component, the hook component including a hook connecting plate, a hook shaft installed on the hook connecting plate and a first hook arranged at the bottom of the hook shaft, the hook shaft is provided with a first nut, the first hook is provided with a connecting hook, the connecting hook is provided with a connecting frame, the connecting frame is provided with a first connecting shaft, a second connecting shaft is provided below the first connecting shaft, bearings are provided on the second connecting shaft and the first connecting shaft, a first limiting sleeve is provided on the second connecting shaft, a second limiting sleeve is provided on the outer side of the first limiting sleeve, a first limiting slider is provided on the side of the first limiting sleeve facing the second limiting sleeve, a limiting groove is provided on the side of the second limiting sleeve facing the first limiting sleeve, the central axis of the limiting groove is parallel to the central axis of the second connecting shaft, an electric push rod is provided on the connecting frame, the second connecting shaft is transmission-connected with the electric push rod, and a second hook is provided at the bottom of the second connecting shaft.
[0006] Preferably, the connecting frame includes a first connecting plate and a second connecting plate, a third connecting plate is arranged between the first connecting plate and the second connecting plate, a fourth connecting plate is arranged on the outside of the second limiting sleeve, and the number of the electric push rods is several, each electric push rod includes a guide sleeve and a push rod, the number of the third connecting plates corresponds to the number of the electric push rods, and each third connecting plate is correspondingly installed with a guide sleeve of an electric push rod, and the push rods of the several electric push rods are connected to the fourth connecting plate, and the several electric push rods are evenly distributed in a star shape on the outside of the central axis of the second connecting shaft.
[0007] Preferably, the fourth connecting plate and the second limiting sleeve are provided with reinforcing plates, and the number of the reinforcing plates is several, and the several reinforcing plates are evenly distributed in a star shape on the outside of the central axis of the second limiting sleeve.
[0008] Preferably, the number of the first limit sliders is several, and the several first limit sliders are evenly distributed in a star shape on the outside of the central axis of the first limit sleeve, the central axis of the first limit sleeve and the central axis of the second connecting shaft are located on the same axis, and a second limit slider is arranged between two adjacent first limit sliders. The number of the limit grooves is several, and there is one limit groove distributed between two adjacent second limit sliders.
[0009] Preferably, the width of each of the first limiting sliders at one end away from the second hook gradually decreases along the direction from close to the second hook to away from the second hook, and the width of each of the second limiting sliders at one end close to the second hook gradually increases along the direction from close to the second hook to away from the second hook.
[0010] Preferably, the bearing adopts a roller bearing, and the bearing includes an inner ring, an outer ring, a roller mounting frame installed between the inner ring and the outer ring, and a roller mounted on the roller mounting frame. The inner ring is installed on the first connecting shaft, a connecting ring is provided on the outer ring, a fifth connecting plate is provided below the connecting ring, screws are provided on the fifth connecting plate and the connecting ring, second nuts are respectively provided on the screws on both sides of the fifth connecting plate and on the screws on both sides of the connecting ring, a second sleeve is provided on the side of the fifth connecting plate away from the connecting ring, and the second connecting shaft is installed on the second sleeve.
[0011] The beneficial effects of the utility model are as follows: firstly, the utility model reduces accidents in the hoisting process caused by rotation occurring during the lifting of the segmented components, and facilitates the rotation of the segmented components after the lifting is completed, so that the segmented components can reach a preset installation angle, thereby facilitating continuous hoisting of the segmented components for assembly operations at high altitudes, and reducing the difficulty of installing the segmented components at high altitudes.
[0012] Secondly, in the utility model, a limiting ring is arranged at one end of the first limiting sleeve close to the second hook, so as to facilitate limiting the movement position of the second limiting sleeve.
[0013] Again, in the utility model, the width of each of the first limit sliders at the end away from the second hook gradually decreases along the direction from close to the second hook to away from the second hook, and the width of each of the second limit sliders at the end close to the second hook gradually increases along the direction from close to the second hook to away from the second hook; thereby, the shape of the second limit slider at the end close to the second hook and the shape of the first limit slider at the end away from the second hook form a guide, which is beneficial for the first limit slider to move into the limit groove.
[0014] The utility model has the advantages of simple structure, convenient operation, ingenious design, greatly improved working efficiency, good social and economic benefits, and is a product that is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the utility model.
[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of detail A.
[0017] Figure 3 The schematic diagram of the structure of the components of the utility model. DETAILED DESCRIPTION
[0018] like Figures 1 to 3As shown, a lifting auxiliary component is applied to a crane, the crane hook component, the hook component includes a hook connecting plate 1, a hook shaft 2 installed on the hook connecting plate 1 and a first hook 3 arranged at the bottom of the hook shaft 2. Compared with the hook shaft 2 in the prior art, the present product is provided with a first nut 4 on the hook shaft 2; preferably, the hook shaft 2 on both sides of the hook connecting plate 1 are respectively installed with the first nuts 4, and the first nut 4 and the hook shaft 2 are threadedly connected, so that it is convenient to use the first nuts 4 distributed on both sides of the hook connecting plate 1 to install the hook shaft 2 to the hook connecting plate 1, so that the friction between the hook connecting plate 1 and the hook shaft 2 is increased, which plays a role in reducing the rotation of the hook shaft 2 during the lifting operation; the first hook 3 is provided with A connecting hook 5 is provided on the connecting hook 5, a connecting frame is provided on the connecting frame, a first connecting shaft 6 is provided on the connecting frame, a second connecting shaft 7 is provided below the first connecting shaft 6, a bearing 8 is provided on the second connecting shaft 7 and the first connecting shaft 6, a first limiting sleeve 9 is provided on the second connecting shaft 7, a second limiting sleeve 10 is provided on the outer side of the first limiting sleeve 9, a first limiting slider 11 is provided on the side of the first limiting sleeve 9 facing the second limiting sleeve 10, a limiting groove is provided on the side of the second limiting sleeve 10 facing the first limiting sleeve 9, the central axis of the limiting groove is parallel to the central axis of the second connecting shaft 7, an electric push rod 12 is provided on the connecting frame, the second connecting shaft 7 is connected to the electric push rod 12 in transmission, and a second hook 13 is provided at the bottom of the second connecting shaft 7. A limiting ring 24 is provided at one end of the first limiting sleeve 9 close to the second hook 13.
[0019] The connecting frame includes a first connecting plate 14 and a second connecting plate 15, a third connecting plate 16 is arranged between the first connecting plate 14 and the second connecting plate 15, a fourth connecting plate 17 is arranged outside the second limiting sleeve 10, the number of the electric push rods 12 is several, each electric push rod 12 includes a guide sleeve and a push rod, the number of the third connecting plates 16 corresponds to the number of the electric push rods 12, each third connecting plate 16 is correspondingly installed with a guide sleeve of an electric push rod 12, the push rods of several electric push rods 12 are connected to the fourth connecting plate 17, and several electric push rods 12 are evenly distributed in a star shape outside the central axis of the second connecting shaft 7. Installing several electric push rods 12 facilitates multi-point fixation of the fourth connecting plate 17, and using several electric push rods 12 to work synchronously facilitates driving the fourth connecting plate 17 to make linear motion along the direction of the central axis of the second connecting shaft 7. Furthermore, the fourth connecting plate 17 and the second limiting sleeve 10 are provided with reinforcing plates 18, and the number of reinforcing plates 18 is several, and the several reinforcing plates 18 are evenly distributed in a star shape on the outside of the central axis of the second limiting sleeve 10. The installation of several reinforcing plates 18 improves the structural strength between the fourth connecting plate 17 and the second limiting sleeve 10, and at the same time, the several reinforcing plates 18 also facilitate the fourth connecting plate 17 to uniformly apply force to the second limiting sleeve 10, which is beneficial for the second limiting sleeve 10 and the fourth connecting plate 17 to move synchronously.
[0020] The number of the first limit sliders 11 is several, and the first limit sliders 11 are evenly distributed in a star shape outside the central axis of the first limit sleeve 9. The central axis of the first limit sleeve 9 and the central axis of the second connecting shaft 7 are located on the same axis. A second limit slider 19 is arranged between two adjacent first limit sliders 11. The number of the limit grooves is several, and one limit groove is arranged between two adjacent second limit sliders 19. The width of each first limit slider 11 away from the second hook 13 gradually decreases along the direction from close to the second hook 13 to away from the second hook 13, and the width of each second limit slider 19 close to the second hook 13 gradually increases along the direction from close to the second hook 13 to away from the second hook 13. Therefore, the shape of the end of the second limit slider 19 close to the second hook 13 and the shape of the end of the first limit slider 11 away from the second hook 13 form a guide, which is conducive to the first limit slider 11 moving into the limit groove.
[0021] Since the workpiece to be lifted needs to be mounted through the second hook 13 installed at the bottom of the second connecting shaft 7, the bearing 8 described in this product adopts a roller bearing. The bearing 8 includes an inner ring, an outer ring, a roller mounting frame installed between the inner ring and the outer ring, and a roller installed on the roller mounting frame. The inner ring is installed on the first connecting shaft 6, and a connecting ring 20 is provided on the outer ring. A fifth connecting plate 21 is provided below the connecting ring 20. The fifth connecting plate 21 and the connecting ring 20 are provided with a screw 22. The fifth connecting plate 21 and the connecting ring 20 are provided with a screw 22. Second nuts 23 are respectively provided on the screw rods 22 on both sides of the plate 21 and on the screw rods 22 on both sides of the connecting ring 20. The fifth connecting plate 21 is located between the first connecting plate 14 and the second connecting plate 15. The second connecting plate 15 is located below the first connecting plate 14. A second bushing 26 is provided on the side of the fifth connecting plate 21 away from the connecting ring 20. The second connecting shaft 7 is installed on the second bushing 26. A first bushing 25 is provided on the side of the first connecting plate 14 facing the second connecting plate 15. The first connecting shaft 6 is installed on the first bushing 25.
[0022] The method of using this product is as follows: Figures 1 to 3 As shown, first, tighten the first nut 4 on the hook shaft 2 in the hook assembly on the crane, so that the first nut 4 is connected to the hook connecting plate 1 of the hook assembly, thereby reducing the corresponding rotation of the first hook 3 caused by the rotation of the hook shaft 2 itself; then, install the connecting hook 5 on the first hook 3 and then install the segmented assembly to be lifted on the second hook 13 through a cable tie; then, after lifting the segmented assembly to be lifted to a preset height, drive a plurality of electric push rods 12 to work synchronously, so that the fourth connecting plate 17 is moved away from the second One side of the hook 13 moves, so that the first limit slider 11 slides out of the limit slot, and the staff manually adjusts the segmented assembly to the preset installation angle; then, the plurality of electric push rods 12 are driven to work synchronously again, and the fourth connecting plates 17 of the plurality of electric push rods 12 move toward the side close to the second hook 13. In this process, the shape of the first limit slider 11 away from the end of the second hook 13 and the shape of the second limit slider 19 close to the end of the second hook 13 are used to form a guide, so as to cause the first limit slider 11 to slide into the limit slot. The first limit slider 11 is re-limited by the limit slot, thereby locking the second connecting shaft 7, thereby reducing the accidental force on the second connecting shaft 7 and causing it to rotate, causing the segmented assembly to send a large range of deflection, so that the segmented assembly with the adjusted angle deviates from the preset installation area. Finally, the auxiliary hook on the crane is used to adjust the segmented assembly to the preset installed state, and the segmented assembly is continuously hoisted until the segmented assembly is installed.
[0023] Through this embodiment, accidents in the hoisting process caused by rotation during the lifting of the segmented assembly are reduced, and the segmented assembly is easy to rotate after the lifting is completed, so that the segmented assembly reaches a preset installation angle, thereby facilitating continuous hoisting of the segmented assembly for assembly operations at high altitudes, reducing the difficulty of installing the segmented assembly at high altitudes.
[0024] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A lifting auxiliary assembly, comprising a hook assembly, wherein the hook assembly comprises a hook connecting plate (1), a hook shaft (2) mounted on the hook connecting plate (1), and a first hook (3) arranged at the bottom of the hook shaft (2), characterized in that: The hook shaft (2) is provided with a first nut (4), the first hook (3) is provided with a connecting hook (5), the connecting hook (5) is provided with a connecting frame, the connecting frame is provided with a first connecting shaft (6), a second connecting shaft (7) is provided below the first connecting shaft (6), bearings (8) are provided on the second connecting shaft (7) and the first connecting shaft (6), a first limiting sleeve (9) is provided on the second connecting shaft (7), a second limiting sleeve (10) is provided on the outer side of the first limiting sleeve (9), a first limiting slider (11) is provided on the side of the first limiting sleeve (9) facing the second limiting sleeve (10), a limiting groove is provided on the side of the second limiting sleeve (10) facing the first limiting sleeve (9), the central axis of the limiting groove is parallel to the central axis of the second connecting shaft (7), an electric push rod (12) is provided on the connecting frame, the second connecting shaft (7) and the electric push rod (12) are transmission-connected, and a second hook (13) is provided at the bottom of the second connecting shaft (7).
2. The lifting auxiliary assembly according to claim 1, characterized in that: The connecting frame comprises a first connecting plate (14) and a second connecting plate (15), a third connecting plate (16) is arranged between the first connecting plate (14) and the second connecting plate (15), a fourth connecting plate (17) is arranged outside the second limiting sleeve (10), a plurality of electric push rods (12) are provided, each electric push rod (12) comprises a guide sleeve and a push rod, the number of third connecting plates (16) corresponds to the number of electric push rods (12), a guide sleeve of an electric push rod (12) is correspondingly mounted on each third connecting plate (16), the push rods of the plurality of electric push rods (12) are connected to the fourth connecting plate (17), and the plurality of electric push rods (12) are evenly distributed in a star shape outside the central axis of the second connecting shaft (7).
3. The lifting auxiliary assembly according to claim 2, characterized in that: The fourth connecting plate (17) and the second limiting sleeve (10) are provided with reinforcing plates (18), and the number of reinforcing plates (18) is a plurality, and the plurality of reinforcing plates (18) are evenly distributed in a star shape outside the central axis of the second limiting sleeve (10).
4. The lifting auxiliary assembly according to claim 1, characterized in that: The number of the first limit sliders (11) is a plurality, and the plurality of first limit sliders (11) are evenly distributed in a star shape outside the central axis of the first limit sleeve (9), the central axis of the first limit sleeve (9) and the central axis of the second connecting shaft (7) are located on the same axis, a second limit slider (19) is arranged between two adjacent first limit sliders (11), and the number of the limit grooves is a plurality, and a limit groove is arranged between each of two adjacent second limit sliders (19).
5. The lifting auxiliary assembly according to claim 4, characterized in that: The width of each of the first limiting sliders (11) at one end away from the second hook (13) gradually decreases along the direction from close to the second hook (13) to away from the second hook (13), and the width of each of the second limiting sliders (19) at one end close to the second hook (13) gradually increases along the direction from close to the second hook (13) to away from the second hook (13).
6. The lifting auxiliary assembly according to claim 1, characterized in that: The bearing (8) is a roller bearing. The bearing (8) comprises an inner ring, an outer ring, a roller mounting frame mounted between the inner ring and the outer ring, and a roller mounted on the roller mounting frame. The inner ring is mounted on the first connecting shaft (6). A connecting ring (20) is provided on the outer ring. A fifth connecting plate (21) is provided below the connecting ring (20). Screws (22) are provided on the fifth connecting plate (21) and the connecting ring (20). Second nuts (23) are provided on the screws (22) on both sides of the fifth connecting plate (21) and on the screws (22) on both sides of the connecting ring (20). A second shaft sleeve (26) is provided on the side of the fifth connecting plate (21) away from the connecting ring (20). The second connecting shaft (7) is mounted on the second shaft sleeve (26).