An automatic unhooking device for a single-blade horizontal lifting device
By designing an automatic unhooking device for a single-blade horizontal sling, an electric push rod drives a pin to automatically attach and detach the sling, solving the safety risks and high costs associated with traditional manual sling detachment, and improving the safety and efficiency of sling operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGHUA OFFSHORE OIL & GAS EQUIP JIANGSU
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional wind turbine blade sling unhooking requires manual operation by construction workers, which poses significant safety risks due to high-altitude work and is slow. Existing automatic unhooking devices are complex in structure and expensive.
Design an automatic unhooking device for a single-blade horizontal sling, including an automatic unhooking connection device, a telescopic component, and a pin. The pin is driven by an electric push rod to achieve automatic attachment and release of the sling, and a self-locking device is provided to ensure safety.
It enables automatic unslinging, improving safety and reliability, reducing operation time, simplifying the operation process, and reducing costs.
Smart Images
Figure CN224279491U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of new energy equipment, specifically an automatic unhooking device for a single-blade horizontal lifting device. Background Technology
[0002] Wind turbine blades are a crucial component of wind power generation equipment. During assembly, the blades need to be hoisted to a high altitude, and after installation, the slings need to be detached. Traditionally, this detachment is done manually by workers, which is high-altitude work, carries significant safety risks, is slow, and impacts the installation schedule. Existing automatic unhooking devices are complex and costly. Utility Model Content
[0003] The purpose of this invention is to provide an automatic unhooking device for a single-blade horizontal lifting device to solve one or more of the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model discloses an automatic unhooking device for a single-blade horizontal lifting device, comprising an automatic unhooking connection device, a telescopic component, and a pin. The automatic unhooking connection device is provided with two parallel ear plates, namely a first ear plate and a second ear plate. Each ear plate has a connecting hole on its upper and lower sides. The upper connecting hole is used to connect with the lifting mechanism of the horizontal lifting device, and the lower connecting hole is used to connect the lifting sling. The telescopic component is located at the lower part of the automatic unhooking connection device and is correspondingly arranged with the connecting hole on the lower side of the ear plate. One end of the telescopic component is connected to the automatic unhooking connection device, and the other end of the telescopic component is connected to the pin. The pin is correspondingly arranged with the connecting hole on the lower side of the ear plate.
[0005] In some embodiments, the telescopic member is an electric push rod.
[0006] In some embodiments, the automatic unhooking connection device further includes a first plate, a second plate, a third plate, and an auxiliary ear plate. One side of the first plate is connected to a counterweight, and the other side of the first plate is connected to one side of the first ear plate. The other side of the first ear plate is connected to one side of the second plate, and the other side of the second plate is connected to one side of the second ear plate. The other side of the second ear plate is connected to one side of the third plate, and the other side of the third plate is connected to the auxiliary ear plate.
[0007] In some implementations...
[0008] One or more first auxiliary plates are added to the first plate, avoiding the connecting holes;
[0009] One or more second auxiliary plates are added to the second plate, avoiding the connecting holes;
[0010] One or more third auxiliary plates are added to the third plate to avoid the connecting holes.
[0011] In some implementations...
[0012] The first auxiliary plate can be disposed at the lower part of the first plate, the upper end of the first auxiliary plate is connected to the bottom surface of the first plate, and the left and right ends of the first auxiliary plate are respectively connected to the counterweight and the first ear plate.
[0013] The second auxiliary plate is disposed at the lower part of the second plate, the upper end of the second auxiliary plate is connected to the bottom surface of the second plate, and the left and right ends of the second auxiliary plate are respectively connected to the first ear plate and the second ear plate.
[0014] The third auxiliary plate is disposed on the upper part of the third auxiliary plate, the lower end of the third auxiliary plate is connected to the third plate, and the right end of the third auxiliary plate is connected to the second ear plate.
[0015] In some implementations...
[0016] Two auxiliary plates are added to the first plate, avoiding the connection hole, and the two auxiliary plates are symmetrically distributed about the connection hole;
[0017] Two second auxiliary plates are added to the second plate, avoiding the connection hole, and the two second auxiliary plates are symmetrically distributed about the connection hole;
[0018] Two auxiliary third plates are added to the third plate to avoid the connecting hole. The two auxiliary third plates are symmetrically distributed about the connecting hole, and a stiffener is provided between the left ends of the two auxiliary third plates.
[0019] In some implementations...
[0020] The first plate, the second plate, the third plate, the first auxiliary plate, the second auxiliary plate, the third auxiliary plate, and the stiffening plate are all steel plates.
[0021] In some embodiments, the bottom of the third plate is provided with two auxiliary ear plates symmetrically distributed about the connecting holes, and the top of the auxiliary ear plates is connected to the bottom surface of the third plate.
[0022] In some implementations, the telescopic component is equipped with a displacement sensor to monitor the travel of the telescopic component.
[0023] In addition, existing self-locking devices can be added to the aforementioned telescopic components, or control codes related to the self-locking function can be added to their control programs to ensure that automatic retraction or extension does not occur at any time, thereby avoiding the danger of accidental detachment of the slings and enhancing the stability, reliability, and safety of the hoisting process.
[0024] Compared with the prior art, the advantages of this utility model are: simple structure, low cost, automatic unhooking operation, avoiding manual unhooking by construction personnel at height, effectively enhancing the safety and reliability of the sling unhooking process. At the same time, the automatic unhooking device in this utility model is easy to operate, effectively reducing the time required for sling unhooking operation and helping to speed up the work process. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the automatic unhooking device in some embodiments of this utility model;
[0026] Figure 2 for Figure 1 Enlarged view of part Aa in the middle;
[0027] Figure 3 for Figure 1 Enlarged view of part Ab in the middle;
[0028] Figure 4 This is a side view of the mechanism of the automatic unhooking connection device in some embodiments of this utility model;
[0029] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the EE;
[0030] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of the GG;
[0031] Figure 7 This is a top view of the mechanism of the automatic unhooking connection device in some embodiments of this utility model;
[0032] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure of the middle FF;
[0033] Figure 9 This is a schematic diagram of the mechanism of the horizontal lifting device in some embodiments of this utility model. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Please see Figures 1 to 9The figure shows a preferred embodiment of this utility model, which discloses an automatic unhooking device for a single-blade horizontal lifting device, which can be a single-blade horizontal lifting device 3. The single-blade horizontal lifting device 3 includes an automatic unhooking connecting device 301, a telescopic member 303, and a pin 302. The automatic unhooking connecting device 301 is provided with two parallel ear plates, namely a first ear plate 313 and a second ear plate 315. Each ear plate is provided with a connecting hole on its upper and lower sides. The connecting hole on the upper side is used to connect with the lifting mechanism 2 (such as a hoist) of the horizontal lifting device 1, and the connecting hole on the lower side is used to connect the sling 4. The telescopic component 303 is located at the lower part of the automatic unhooking connecting device 301 and corresponds to the connecting hole on the lower side of the ear plate. One end of the telescopic component 303 is connected to the automatic unhooking connecting device 301, and the other end of the telescopic component 303 is connected to the pin 302. The telescopic component 303 is used to drive the pin 302 to extend and retract. When the automatic unhooking connecting device 301 needs to be connected to the sling 4 (i.e., sling installation), one end of the sling 4 is inserted between the two ear plates. At this time, the end of the sling 4 corresponds to the connecting hole on the lower side. Then, the telescopic component 303 is controlled to drive the pin 302 to extend forward until the pin 302 passes through the connecting hole on the lower side of the second ear plate 315, the end of the sling 4, and the connecting hole on the lower side of the first ear plate 313 in sequence, so as to hang the end of the sling 4 on the pin 302 between the two ear plates. When it is necessary to release the sling 4 (i.e., unhook, sling detachment), simply control the telescopic component 303 to retract the pin 302. The moving pin 302 will exit the connecting hole on the lower side of the first ear plate 313 and the end of the sling 4 until the outer end of the pin 302 (the end of the pin 302 away from the telescopic component 303) retracts into the connecting hole on the lower side of the second ear plate 315 or is completely pushed out of the connecting hole on the lower side of the second ear plate 315. Under its own weight, the sling 4 will completely detach from the automatic unhooking device of the single-blade horizontal lifting device. At this time, the connection between the end of the sling 4 and the pin 302 will be released, achieving the purpose of automatically releasing the sling (i.e., automatic unhooking). In this way, when the lifting is completed, the telescopic component can be remotely operated for retrieval via a remote control device connected to the telescopic component from a high altitude or other location, achieving the purpose of automatically releasing the sling.
[0036] The aforementioned telescopic component 303 can be an electric push rod.
[0037] The aforementioned automatic unhooking connection device 301 may further include a first plate 312, a second plate 314, a third plate 317, and an auxiliary ear plate 319. One end of the first plate 312 is connected to a counterweight 311, and the other end of the first plate 312 is connected to one end face of the first ear plate 313. The other end face of the first ear plate 313 is connected to one end face of the second plate 314, the other end face of the second plate 314 is connected to one end face of the second ear plate 315, the other end face of the second ear plate 315 is connected to one end face of the third plate 317, and the other end face of the third plate 317 is connected to the auxiliary ear plate 319. The counterweight 311 effectively ensures that the automatic unhooking device for the single-blade horizontal sling is in a horizontal state, facilitating the installation and detachment of the sling.
[0038] One or more first auxiliary plates 3110 can be added to the first plate 312, avoiding the connection hole (for example, two first auxiliary plates 3110). The first auxiliary plates 3110 can be set at the lower part of the first plate 312. The upper end of the first auxiliary plate 3110 can be connected to the bottom surface of the first plate 312. The left and right ends of the first auxiliary plate 3110 can be connected to the counterweight 311 and the first ear plate 313 respectively (when the number of added first auxiliary plates 3110 is two, the two first auxiliary plates 3110 can be symmetrically distributed about the connection hole).
[0039] One or more second auxiliary plates 3111 can be added to the second plate 314, avoiding the connection hole (for example, two second auxiliary plates 3111). The second auxiliary plates 3111 can be set at the lower part of the second plate 314. The upper end of the second auxiliary plate 3111 can be connected to the bottom surface of the second plate 314. The left and right ends of the second auxiliary plate 3111 can be connected to the first ear plate 313 and the second ear plate 315 respectively (when the number of added second auxiliary plates 3111 is two, the two second auxiliary plates 3111 can be symmetrically distributed about the connection hole).
[0040] One or more third auxiliary plates 318 can be added to the third plate 317, avoiding the connection hole (for example, two third auxiliary plates 318). The third auxiliary plates 318 can be set on the upper part of the third auxiliary plate 318. The lower end of the third auxiliary plate 318 can be connected to the third plate 317. The right end of the third auxiliary plate 318 can be connected to the second ear plate 315. (When there are two third auxiliary plates 318, the two third auxiliary plates 318 can be symmetrically distributed about the connection hole, and at this time, a stiffening plate 316 can be added between the left ends of the two third auxiliary plates 318.)
[0041] The first plate 312, the second plate 314, the third plate 317, the first auxiliary plate 3110, the second auxiliary plate 3111, the third auxiliary plate 318 and the stiffening plate 316 mentioned above can all be steel plates.
[0042] Two auxiliary ear plates 319, symmetrically distributed about the connecting holes, can be provided at the bottom of the third plate 317. The top of the auxiliary ear plates 319 is connected to the bottom surface of the third plate 317. One end of the telescopic member 303 can be connected to the first connecting holes on the two auxiliary ear plates 319 via a first connecting shaft 304. After passing through, the two ends of the first connecting shaft 304 are connected and fixed by a cotter pin 305 to form a connection between the telescopic member 303 and the auxiliary ear plates 319. The other end of the telescopic member 303 can also be connected to the pin 302 in the same way using a second connecting shaft 306 and a cotter pin 305. This connection method can be directly implemented using existing technology or devices, so it will not be described in detail here.
[0043] A displacement sensor 307 may also be added to the telescopic member 303 to monitor the stroke of the telescopic member 303, so as to ensure that the pin is fully extended into the ear seat (when the pin 302 passes through the connecting hole on the lower side of the second ear plate 315, the end of the sling 4, and the connecting hole on the lower side of the first ear plate 313, so that the end of the sling 4 is hung on the pin 302 between the two ear plates) or fully retracted (when the outer end of the pin 302 retracts into the connecting hole on the lower side of the second ear plate 315 or is fully extended out of the connecting hole on the lower side of the second ear plate 315) when it is not visible.
[0044] The aforementioned telescopic component 303 can be equipped with an existing self-locking device or have control code related to the self-locking function added to its control program to ensure that it will not automatically retract or extend at any time, thereby avoiding the danger of the sling accidentally falling off and enhancing the stability, reliability and safety of the automatic unhooking device for single-blade horizontal lifting devices during use.
[0045] All of the above-mentioned undisclosed matters can be implemented using existing technologies, so they will not be elaborated here.
[0046] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0048] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. A single-limb horizontal spreader automatic unhooking device, characterized in that, The device includes an automatic unhooking connection device, a telescopic component, and a pin. The automatic unhooking connection device has two parallel ear plates, namely a first ear plate and a second ear plate. Each ear plate has a connection hole on its upper and lower sides. The upper connection hole is used to connect with the lifting mechanism of the horizontal lifting device, and the lower connection hole is used to connect with the sling. The telescopic component is located at the lower part of the automatic unhooking connection device and is correspondingly arranged with the connection hole on the lower side of the ear plate. One end of the telescopic component is connected to the automatic unhooking connection device, and the other end of the telescopic component is connected to the pin. The pin is correspondingly arranged with the connection hole on the lower side of the ear plate.
2. The automatic unhooking device of a single-blade horizontal spreader according to claim 1, characterized in that: The telescopic component is an electric push rod.
3. The automatic unhooking device of a single-blade horizontal spreader according to claim 1 or 2, characterized in that: The automatic unhooking connection device further includes a first plate, a second plate, a third plate, and an auxiliary ear plate. One side of the first plate is connected to a counterweight, and the other side of the first plate is connected to one side of the first ear plate. The other side of the first ear plate is connected to one side of the second plate, and the other side of the second plate is connected to one side of the second ear plate. The other side of the second ear plate is connected to one side of the third plate, and the other side of the third plate is connected to the auxiliary ear plate.
4. The automatic unhooking device for a single-blade horizontal lifting device according to claim 3, characterized in that: One or more first auxiliary plates are added to the first plate, avoiding the connecting holes; One or more second auxiliary plates are added to the second plate, avoiding the connecting holes; One or more third auxiliary plates are added to the third plate to avoid the connecting holes.
5. The automatic unhooking device for a single-blade horizontal lifting device according to claim 4, characterized in that: The first auxiliary plate can be disposed at the lower part of the first plate, the upper end of the first auxiliary plate is connected to the bottom surface of the first plate, and the left and right ends of the first auxiliary plate are respectively connected to the counterweight and the first ear plate. The second auxiliary plate is disposed at the lower part of the second plate, the upper end of the second auxiliary plate is connected to the bottom surface of the second plate, and the left and right ends of the second auxiliary plate are respectively connected to the first ear plate and the second ear plate. The third auxiliary plate is disposed on the upper part of the third auxiliary plate, the lower end of the third auxiliary plate is connected to the third plate, and the right end of the third auxiliary plate is connected to the second ear plate.
6. The automatic unhooking device for a single-blade horizontal lifting device according to claim 5, characterized in that: Two auxiliary plates are added to the first plate, avoiding the connection hole, and the two auxiliary plates are symmetrically distributed about the connection hole; Two second auxiliary plates are added to the second plate, avoiding the connection hole, and the two second auxiliary plates are symmetrically distributed about the connection hole; Two auxiliary third plates are added to the third plate to avoid the connecting hole. The two auxiliary third plates are symmetrically distributed about the connecting hole, and a stiffener is provided between the left ends of the two auxiliary third plates.
7. The automatic unhooking device for a single-blade horizontal lifting device according to claim 6, characterized in that: The first plate, the second plate, the third plate, the first auxiliary plate, the second auxiliary plate, the third auxiliary plate, and the stiffening plate are all steel plates.
8. The automatic unhooking device for a single-blade horizontal lifting device according to claim 6, characterized in that: The bottom of the third plate has two auxiliary ear plates symmetrically distributed about the connecting holes, and the top of the auxiliary ear plates is connected to the bottom surface of the third plate.
9. An automatic unhooking device for a single-blade horizontal lifting device according to claim 1 or 2, characterized in that: The telescopic component is equipped with a displacement sensor, which monitors the stroke of the telescopic component.