Push-pull device for hoisting wind generating set

Abstract

The push-and-pull device comprises a telescopic rod, a push-and-pull mechanism is arranged at the telescopic end of the telescopic rod, the push-and-pull mechanism comprises at least one arc-shaped push-and-pull hook, the push-and-pull hook is fixedly connected with the telescopic end, the push-and-pull hook comprises an arc-shaped opening and an arc-shaped protruding part, and the arc-shaped opening is fixedly connected with the telescopic rod. The arc-shaped opening is formed in the direction, away from the telescopic end, of the telescopic rod, the arc-shaped protruding part extends in the direction of the telescopic end, and at least part of the arc-shaped protruding part extends to the exterior of the telescopic end. The push-and-pull device comprises the telescopic rod, so that the distance between a worker and a hoisted object can be adjusted, the worker can always keep a safe distance from the hoisted object, a rope of the hoisted object or the hoisted object can be conveniently pushed and pulled through the push-and-pull hook on the telescopic rod, and the hoisting efficiency is improved. Therefore, the hoisting safety of the wind generating set is improved, and the hoisting working efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wind turbine generator set hoisting, and in particular to a push-pull device for hoisting a wind turbine generator set. Background Art

[0002] Wind energy is the fastest growing clean energy among renewable energy sources, and its utilization is mainly achieved through wind turbines. As an environmentally friendly energy industry, wind power generation is increasingly valued in the modern energy-tight society, and the investment in wind turbines is also increasing.

[0003] At present, as the megawatt capacity of a single wind turbine unit gradually increases, wind turbines are often operated in a limited area when hoisting the entire unit or hoisting large components for maintenance. When impellers, generators, blades and other hoisting objects are hooked from the tooling or need to be hoisted onto the tooling, the hoisting objects cannot be accurately placed on the tooling, and operators are required to push and pull the hoisting objects by hand from under or to the side. The above-mentioned manual pushing and pulling of hoisting objects by operators has the problems of low safety and low work efficiency. Utility Model Content

[0004] The purpose of the present disclosure is to provide a push-pull device for hoisting a wind turbine generator set, which is safe, reliable and has high working efficiency, so as to at least partially solve the problems in the related art.

[0005] In order to achieve the above-mentioned purpose, the present disclosure provides a push-pull device for hoisting a wind turbine generator set, comprising: a telescopic rod, a push-pull mechanism is provided at the telescopic end of the telescopic rod, the push-pull mechanism comprises at least one arc-shaped push-pull hook, the push-pull hook is fixedly connected to the telescopic end, the push-pull hook comprises an arc-shaped opening and an arc-shaped protrusion, the arc-shaped opening is arranged in a direction toward the telescopic rod away from the telescopic end, the arc-shaped protrusion extends toward the telescopic end and at least a portion of the arc-shaped protrusion extends to the outside of the telescopic end.

[0006] Optionally, there are multiple push-pull hooks, and the multiple push-pull hooks are arranged at intervals along the circumference of the telescopic rod.

[0007] Optionally, there are two push-pull hooks, and the two push-pull hooks are arranged at equal angles along the circumference of the telescopic rod.

[0008] Optionally, the push-pull hook includes a first connecting section, the first connecting section is fixedly connected to an end of the arc-shaped protrusion close to the telescopic rod, and the first connecting section is fixedly connected to the telescopic rod.

[0009] Optionally, the push-pull hook further includes a second connecting section, the second connecting section is fixedly connected to an end of the arc-shaped protrusion away from the telescopic rod, and the second connecting section is arranged parallel to the telescopic rod.

[0010] Optionally, the telescopic rod includes a sleeve and a connecting rod, a first end of the connecting rod is movably and lockably connected to the sleeve, and a second end of the connecting rod is fixedly connected to the push-pull hook.

[0011] Optionally, the first end of the connecting rod is threadedly connected to the sleeve.

[0012] Optionally, the telescopic rod further includes an extension rod, wherein the extension rod is located between the connecting rod and the sleeve, and two ends of the extension rod are respectively threadedly connected to the connecting rod and the sleeve.

[0013] Optionally, the sleeve includes an inner sleeve and an outer sleeve, the inner sleeve is provided with an internal thread, and the first end of the connecting rod is provided with an external thread matching the internal thread.

[0014] Optionally, a handle is fixedly provided on one end of the outer sleeve away from the inner sleeve.

[0015] Through the above technical scheme, the distance between the staff and the hoisted object can be adjusted by the push-pull device including the telescopic rod, so that the staff can always maintain a safe distance from the hoisted object. The push-pull hook on the telescopic rod can facilitate the pushing and pulling of the rope of the hoisted object or the hoisted object. When it is necessary to pull the hoisted object closer, the position of the hoisted object can be changed by pulling the rope of the hoisted object. When it is necessary to push the hoisted object away, the arc-shaped protrusion of the push-pull hook abuts against the hoisted object or the rope of the hoisted object and pushes the hoisted object away, thereby improving the safety of the hoisting of the wind turbine generator set and improving the hoisting work efficiency.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 It is a schematic structural diagram of a push-pull device for hoisting a wind turbine generator set provided in an exemplary embodiment of the present disclosure.

[0019] Description of Reference Numerals

[0020] 1-telescopic rod; 11-telescopic end; 12-sleeve; 121-inner sleeve; 122-outer sleeve; 13-connecting rod; 14-extension rod; 2-push-pull mechanism; 21-push-pull hook; 211-first connecting section; 212-second connecting section; 22-opening; 23-arc-shaped protrusion; 3-handle. DETAILED DESCRIPTION

[0021] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0022] In this disclosure, unless otherwise stated, the directional words used, such as "up, down, left, right", generally refer to the use state of the push-pull device for hoisting a wind turbine generator set, and "inside, outside" refer to the outline of the part itself. In addition, the terms "first", "second", etc. used in this utility model are to distinguish one element from another, and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0023] In the related technology, as the megawatt capacity of a single wind turbine unit gradually increases, wind turbines are often operated in a limited area when hoisting the entire unit or hoisting large components for maintenance. When impellers, generators, blades and other hoisting objects are hooked from the tooling or need to be hoisted onto the tooling, the hoisting objects cannot be accurately placed on the tooling, and operators are required to use manual pushing and pulling of the hoisting objects from under or to the side. Manual pushing and pulling of hoisting objects is inefficient and inconvenient to adjust. At the same time, there is a safety hazard of the hoisting objects suddenly falling and crushing people during hoisting.

[0024] In order to solve the above technical problems, Figure 1 As shown, the present disclosure provides a push-pull device for hoisting a wind turbine generator set, comprising: a telescopic rod 1, a telescopic end 11 of the telescopic rod 1 is provided with a push-pull mechanism 2, the push-pull mechanism 2 comprises at least one arc-shaped push-pull hook 21, the push-pull hook 21 is fixedly connected to the telescopic end 11, the push-pull hook 21 comprises an arc-shaped opening 22 and an arc-shaped protrusion 23, the arc-shaped opening 22 is arranged in a direction toward the telescopic rod 1 away from the telescopic end 11, the arc-shaped protrusion 23 extends toward the telescopic end 11 and at least a part of the arc-shaped protrusion 23 extends to the outside of the telescopic end 11.

[0025] Through the above technical solution, the distance between the staff and the hoisted object can be adjusted through the push-pull device including the telescopic rod 1, so that the staff can always maintain a safe distance from the hoisted object. The push-pull hook 21 on the telescopic rod 1 can be conveniently pushed and pulled on the rope of the hoisted object or the hoisted object. When it is necessary to pull the hoisted object closer, the rope of the hoisted object can be hooked through the opening 22 of the push-pull hook 21 and pulled to change the position of the hoisted object. When it is necessary to push the hoisted object away, the arc-shaped protrusion 23 of the push-pull hook abuts against the hoisted object or the rope of the hoisted object and pushes the hoisted object away. In this way, the above-mentioned push-pull device can improve the safety of hoisting and improve the working efficiency when hoisting a wind turbine.

[0026] In order to facilitate the pushing and pulling of the hoisted object, in some practicable ways, there are multiple push-pull hooks 21, and the multiple push-pull hooks 21 are arranged at intervals along the circumference of the telescopic rod 1. For example, there are two push-pull hooks 21, and the two push-pull hooks 21 are arranged at equal angles along the circumference of the telescopic rod 1, that is, the two push-pull hooks 21 are arranged at 180 degrees along the circumference of the telescopic rod 1, and the openings of the two push-pull hooks 21 are in the same direction. In this way, the openings of the two push-pull hooks 21 can form an M-shaped profile with the telescopic rod 1. When the hoisted object needs to be tightened, the M-shaped profile can contact more ropes of the hoisted object, so that the hoisted object can be pulled to change its position faster and more stably. Of course, when the hoisted object needs to be pushed away, the two push-pull hooks 21 can be used to pull the hoisted object to a different position. The outer edge of the M-shaped profile of the pull hook 21 contacts the hoisted object or the rope of the hoisted object. When the M-shaped profiles of the two push-pull hooks 21 contact the hoisted object, they can have two contact points with the hoisted object through the two arc-shaped protrusions 23, so that the push-pull device and the hoisted object are in contact more stably, and there will be no misalignment between the single arc-shaped protrusion 23 and the hoisted object when abutting. When the M-shaped profiles of the two push-pull hooks 21 contact the rope of the hoisted object, the rope can be gathered through the recessed part of the M-shaped profile, so that the position of the hoisted object can be changed faster and more stably.

[0027] It can be understood that the number of two push-pull hooks 21 mentioned above is schematic. In other embodiments, the number of push-pull hooks 21 can also be three. By arranging the three push-pull hooks 21 at intervals along the circumference of the telescopic rod 1, during the pulling process, more ropes of the hoisting objects can be contacted, and the ropes can be pulled more stably to bring the hoisting objects closer. During the pushing process, the three arc-shaped protrusions 23 of the three push-pull hooks 21 can form three contact points with the hoisting objects, thereby being able to more stably push the hoisting objects away.

[0028] In order to ensure a stable connection between the push-pull hook 21 and the telescopic rod, in some practicable embodiments, the push-pull hook 21 includes a first connecting section 211, such as Figure 1 As shown, the first connecting section 211 extends in the same direction as the telescopic rod 1, the first connecting section 211 is fixedly connected to one end of the arc-shaped protrusion 23 close to the telescopic rod 1, and the first connecting section 211 is fixedly connected to the telescopic rod 1. In this embodiment, the first connecting section 211 can be integrally formed with the arc-shaped protrusion 23 of the push-pull hook 21, and the first connecting section 211 can be fixedly connected to one end of the telescopic rod 1 by welding. Therefore, the arrangement of the first connecting section 211 can change the point contact of the push-pull hook 21 with the telescopic rod 1 into a surface contact, so that the connection between the push-pull hook 21 and the telescopic rod 1 is more stable, so that there is enough connection strength to pull the rope of the hoisted object or push the hoisted object away.

[0029] In order to ensure that the rope of the hoisted object is in stable contact with the push-pull hook 21 during the pulling process, the push-pull hook 21 also includes a second connecting section 212, and the second connecting section 212 is fixedly connected to the end of the arc-shaped protrusion 23 away from the telescopic rod 1. The second connecting section 212 is in the shape of a long strip and is integrally formed with the arc-shaped protrusion 23. The second connecting section 212 is arranged parallel to the telescopic rod 1, so that during the pulling process, the arc-shaped opening 22 of the push-pull hook 21 is in contact with the rope of the hoisted object, and the second connecting section 212 can be used to delay the separation of the rope of the hoisted object from the opening 22. In this way, the rope of the hoisted object can be more stably contacted with the push-pull hook 21, which is convenient for the staff to pull the hoisted object closer through the push-pull device.

[0030] It can be understood that the above-mentioned integral molding of the first connecting segment 211 and the second connecting segment 212 with the arc-shaped protrusion 23 is schematic. In other embodiments, the first connecting segment 211 and the second connecting segment 212 can also be arranged separately from the arc-shaped protrusion 23, and the first connecting segment 211 and the second connecting segment 212 can be fixedly connected to the arc-shaped protrusion 23 by welding.

[0031] In order to facilitate the adjustment of the telescopic rod 1, in some feasible embodiments, the telescopic rod 1 includes a sleeve 12 and a connecting rod 13, the first end of the connecting rod 13 is movably and lockably connected to the sleeve 12, and the second end of the connecting rod 13 is fixedly connected to the push-pull hook 21. For example, the first end of the connecting rod 13 is threadedly connected to the sleeve 12. In this way, when it is necessary to push or pull the hoisting objects at different safety distances, the connecting rod 13 can be rotated forward or reversely to move the connecting rod 13 into or outside the sleeve 12. For example, when it is necessary to push or pull the hoisting objects at a longer safety distance, the connecting rod 13 can be rotated reversely to move the connecting rod 13 away from the sleeve 12, thereby lengthening the overall length of the telescopic rod 1 to meet the pushing and pulling of the hoisting at a longer safety distance. Of course, when it is necessary to push or pull the hoisting objects at a shorter safety distance, the connecting rod 13 can be rotated forward to move the connecting rod 13 toward the sleeve 12, thereby shortening the overall length of the telescopic rod 1 to adapt to the pushing and pulling of the hoisting objects at a shorter safety distance.

[0032] In order to further meet the requirements of pushing and pulling the hoisted object at a longer safety distance, the telescopic rod 1 also includes an extension rod 14, which is located between the connecting rod 13 and the sleeve 12, and the two ends of the extension rod 14 are respectively threadedly connected to the connecting rod 13 and the sleeve 12. In this way, the overall length of the telescopic rod 1 can be further increased by the provision of the extension rod 14, thereby meeting the working conditions of pushing and pulling the hoisted object at a longer safety distance, and improving the versatility of the push-pull device.

[0033] In some feasible embodiments, in order to facilitate the connection between the connecting rod 13 and the sleeve 12, the sleeve 12 includes an inner sleeve 121 and an outer sleeve 122. The inner sleeve 121 is provided with an internal thread, and the first end of the connecting rod 13 is provided with an external thread matching the internal thread. The outer sleeve 122 and the inner sleeve 121 can be integrally formed, and the outer sleeve 122 is used to accommodate the connecting rod 13 when the connecting rod 13 is retracted. In this way, the external thread of the connecting rod 13 is connected to the internal thread of the inner sleeve 121, and the relative position between the connecting rod 13 and the sleeve 12 is changed by rotating the connecting rod 13 forward or reversely, thereby meeting the working conditions of pushing and pulling hoisting objects at different safety distances, thereby improving the versatility of the push-pull device.

[0034] In order to facilitate the staff to hold, in some practicable ways, a handle 3 is fixedly provided at one end of the outer sleeve 122 away from the inner sleeve 121. When working, the staff holds the handle 3 with one hand and the outer sleeve 122 or the connecting rod 13 with the other hand, so as to change the relative position of the hoisted object by extending or pulling back the arm. Of course, when pushing the hoisted object away, the staff can also hold the handle 3 with one hand and rotate the connecting rod 13 with the other hand to fine-tune the spacing.

[0035] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0037] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A push-pull device for hoisting a wind turbine generator set, It is characterized in that The invention comprises: a telescopic rod, a push-pull mechanism is provided at the telescopic end of the telescopic rod, the push-pull mechanism comprises at least one arc-shaped push-pull hook, the push-pull hook is fixedly connected to the telescopic end, the push-pull hook comprises an arc-shaped protrusion, the opening of the arc-shaped protrusion is arranged toward the direction of the telescopic rod away from the telescopic end, the arc-shaped protrusion extends toward the telescopic end and at least part of the arc-shaped protrusion extends to the outside of the telescopic end.

2. The push-pull device for hoisting a wind turbine generator set according to claim 1, It is characterized in that There are multiple push-pull hooks, and the multiple push-pull hooks are arranged at intervals along the circumference of the telescopic rod.

3. The push-pull device for hoisting a wind turbine generator set according to claim 2, It is characterized in that There are two push-pull hooks, and the two push-pull hooks are arranged at equal angles along the circumference of the telescopic rod.

4. The push-pull device for hoisting a wind turbine generator set according to claim 1, It is characterized in that The push-pull hook includes a first connecting section, the first connecting section is fixedly connected to one end of the arc-shaped protrusion close to the telescopic rod, and the first connecting section is fixedly connected to the telescopic rod.

5. The push-pull device for hoisting a wind turbine generator set according to claim 4, It is characterized in that The push-pull hook further includes a second connecting section, the second connecting section is fixedly connected to an end of the arc-shaped protrusion away from the telescopic rod, and the second connecting section is arranged parallel to the telescopic rod.

6. The push-pull device for hoisting a wind turbine generator set according to claim 1, It is characterized in that The telescopic rod comprises a sleeve and a connecting rod, a first end of the connecting rod is movably and lockably connected to the sleeve, and a second end of the connecting rod is fixedly connected to the push-pull hook.

7. The push-pull device for hoisting a wind turbine generator set according to claim 6, It is characterized in that The first end of the connecting rod is threadedly connected to the sleeve.

8. The push-pull device for hoisting a wind turbine generator set according to claim 6, It is characterized in that The telescopic rod also includes an extension rod, which is located between the connecting rod and the sleeve, and two ends of the extension rod are respectively threadedly connected to the connecting rod and the sleeve.

9. The push-pull device for hoisting a wind turbine generator set according to claim 6, It is characterized in that The sleeve comprises an inner sleeve and an outer sleeve, the inner sleeve is provided with an internal thread, and the first end of the connecting rod is provided with an external thread matching the internal thread.

10. The push-pull device for hoisting a wind turbine generator set according to claim 9, It is characterized in that A handle is fixedly provided on one end of the outer sleeve away from the inner sleeve.

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