Bolt maintenance ladder platform

Abstract

The utility model discloses a bolt maintenance ladder platform which is formed by splicing first ladders and second ladders, the first ladders are of T-shaped structures, the two first ladders are spliced to form a pi-shaped structure, the second ladders are of linear structures, and the second ladders are of a T-shaped structure. The two pi-shaped structures formed by splicing the first ladders are connected with each other through a second ladder to form a frame-shaped bolt maintenance ladder platform; and the bolt maintenance ladder platform is fixed on a web plate of a blade mounting hub of the wind generating set through a fixing piece. The bolt maintenance ladder platform is of a frame-shaped structure formed by splicing and combining the first ladder and the second ladder, so that an operator can stand on the platform to install and maintain bolts on a web plate of a blade installation hub of a wind generating set.

Description

Technical Field

[0001] The utility model belongs to the field of auxiliary devices for bolt installation of wind turbines, and particularly relates to a bolt maintenance ladder platform. Background Technique

[0002] With the continuous development of the wind power industry, the single-unit capacity of wind turbines is increasing continuously, the size of the unit is getting larger and larger, the pitch circle size of the blade root bolts and the pitch circle size of the mounting holes of the pitch bearings are getting larger and larger. When installing the blade bolts, the pitch circle of the blade bolts is vertical, and it is extremely difficult for personnel to install the blade bolts.

[0003] When installing the blade, the blade is docked with the pitch bearing. After the docking is completed, the bolts are tightened. Personnel need to operate with tightening tools on the web surface of the hub. The pitch circle size of the blade bolts is large. When it exceeds the operation range of personnel, the operators of the bolts at the top of the blade cannot install them.

[0004] In order to overcome this installation problem, a ladder platform for bolt installation and maintenance needs to be designed, and personnel can stand on the ladder platform to use tools to install and maintain the bolts. Content of the Utility Model

[0005] The purpose of the utility model is to disclose a bolt maintenance ladder platform in order to overcome the problems of the prior art. The bolt maintenance ladder platform of the utility model is a frame-shaped structure formed by splicing a first ladder and a second ladder, so that operators can stand on the platform to install and maintain the bolts on the web of the hub for installing the blades of the wind turbine generator set.

[0006] The purpose of the utility model is realized by the following technical solutions:

[0007] A bolt maintenance ladder platform, which is composed of a first ladder and a second ladder spliced together,

[0008] The first ladder is in a T-shaped structure, and two first ladders are spliced to form a π-shaped structure,

[0009] The second ladder is in a straight-line structure,

[0010] The two π-shaped structures formed by splicing the first ladders are connected to each other through the second ladder to form a frame-shaped bolt maintenance ladder platform;

[0011] And the bolt maintenance ladder platform is fixed on the web of the hub for installing the blades of the wind turbine generator set through fixing parts.

[0012] According to a preferred embodiment, the two first ladders are connected to each other through ladder connectors to form a π-shaped structure.

[0013] According to a preferred embodiment, the second ladder is hinged to the first ladder.

[0014] According to a preferred embodiment, a plurality of footrests are provided on the first ladder and the second ladder.

[0015] According to a preferred embodiment, the T-shaped structure of the first ladder is composed of two linear ladders.

[0016] According to a preferred embodiment, the two linear ladders in the first ladder are hinged together.

[0017] According to a preferred embodiment, a diagonal brace is provided between the two linear ladders in the first ladder.

[0018] According to a preferred embodiment, the diagonal brace has a telescopic structure.

[0019] The main solution of the present utility model and its various further alternative solutions described above can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed by the present utility model. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding the solution of the present utility model, and all of them are the technical solutions to be protected by the present utility model, and will not be enumerated herein.

[0020] Advantages of the present utility model:

[0021] 1. The bolt maintenance ladder platform of the present application has a simple structure, is easy to use, is convenient to manufacture, has strong practicability, and is conducive to popularization and application; the present application is mainly used in scenarios with large spatial dimensions where people cannot operate by themselves, and personnel can stand on the ladder platform to install or maintain the bolts on the hub web of the wind turbine blade.

[0022] 2. The ladder is composed of a first ladder and a second ladder, which is convenient for transportation, installation and removal. The ladders can be connected by ladder connectors, and the overall ladder can be extended or shortened.

[0023] 3. The first ladder can be rotated and folded, and is relatively convenient for installation and removal. The first ladder has a diagonal support, which can improve stability, and the diagonal support can be telescopic.

[0024] 4. Pedals can be added to the ladder to improve safety.

[0025] 5. The entire ladder can install and maintain bolts horizontally and vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the front view of the bolt maintenance ladder platform of the present utility model;

[0027] Figure 2 is the three-dimensional structure schematic diagram of the bolt maintenance ladder platform of the present utility model;

[0028] Figure 3 It is a schematic diagram of the implementation of the bolt maintenance ladder platform of the present utility model;

[0029] Among them, 1 - the first ladder, 2 - the second ladder, 3 - the ladder connector, 4 - the diagonal brace, 5 - the blade mounting hub. Specific implementation manners

[0030] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] It should be noted that: Similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In addition, it should be pointed out in the present utility model that in the present utility model, if the specifically involved structures, connection relationships, positional relationships, power source relationships, etc. are not particularly written out, then the structures, connection relationships, positional relationships, power source relationships, etc. involved in the present utility model are all those that can be known by those skilled in the art on the basis of the prior art without creative labor.

[0036] Embodiment 1

[0037] Reference Figure 1 As shown in the figure, a bolt maintenance ladder platform is shown in the figure. The bolt maintenance ladder platform is composed of a first ladder 1 and a second ladder 2 spliced together.

[0038] The first ladder 1 has a T-shaped structure. Two first ladders 1 are spliced to form a π-shaped structure. The second ladder 2 has a straight-line structure. The two π-shaped structures formed by splicing the first ladders 1 are connected to each other through the second ladder 2 to form a frame-shaped bolt maintenance ladder platform.

[0039] The bolt maintenance ladder platform is fixed to the web of the blade installation hub 5 of the wind turbine generator through a fixing member. Thus, personnel can stand on the ladder platform to install or maintain the bolts on the web of the blade installation hub of the wind turbine generator.

[0040] Preferably, the two first ladders 1 are connected to each other through a ladder connecting member 3 to form a π-shaped structure. Thus, the lateral length of the bolt maintenance ladder platform is increased.

[0041] Preferably, the second ladder 2 is hinged to the first ladder 1. The vertical expansion of the bolt maintenance ladder platform is realized through the second ladder 2.

[0042] Preferably, a plurality of footrests are provided on the first ladder 1 and the second ladder 2 to improve the safety of personnel during the operation process.

[0043] Preferably, the T-shaped structure of the first ladder 1 is composed of two straight-line ladders. Further, the two straight-line ladders inside the first ladder 1 are hinged to each other. Thus, the first ladder 1 can be folded to facilitate the transportation of the first ladder 1.

[0044] Preferably, a diagonal brace 4 is provided between the two linear ladders in the first ladder 1. By adding the diagonal brace 4, the structure of the first ladder 1 becomes more stable.

[0045] Furthermore, the diagonal brace 4 has a telescopic structure, so that the diagonal brace 4 can adapt to the structural fixation of the two ladders in the first ladder 1 in any angular state.

[0046] The bolt maintenance ladder platform of the present application has a simple structure, is easy to use, is convenient to manufacture, has strong practicability, and is conducive to popularization and application; the present application is mainly used in scenarios with large spatial dimensions where people cannot operate by themselves. Personnel can stand on the ladder platform to install or maintain the bolts on the hub web of the wind turbine blade.

[0047] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bolt maintenance ladder platform, characterized in that: The bolt maintenance ladder platform is composed of four first ladders (1) and four second ladders (2) spliced ​​together. The first ladder (1) is a T-shaped structure, and two first ladders (1) are spliced ​​to form a π-shaped structure. The second ladder (2) is a linear structure. The two π-shaped structures formed by splicing the first ladder (1) are connected to each other via the second ladder (2) to form a frame-shaped bolt maintenance ladder platform; The bolt maintenance ladder platform is fixed on the web of the wind turbine blade mounting hub (5) via a fixing piece.

2. The bolt maintenance ladder platform according to claim 1, characterized in that: The two first ladders (1) are connected to each other via a ladder connecting member (3) to form a π-shaped structure.

3. The bolt maintenance ladder platform according to claim 1, characterized in that: The second ladder (2) is hingedly connected to the first ladder (1).

4. The bolt maintenance ladder platform according to claim 1, characterized in that: The first ladder (1) and the second ladder (2) are provided with a plurality of footrests.

5. The bolt maintenance ladder platform according to claim 1, characterized in that: The T-shaped structure of the first ladder (1) is composed of two straight ladders.

6. The bolt maintenance ladder platform according to claim 5, characterized in that: The two straight ladders in the first ladder (1) are hingedly connected.

7. The bolt maintenance ladder platform according to claim 5, characterized in that: A diagonal brace (4) is provided between the two straight ladders in the first ladder (1).

8. The bolt maintenance ladder platform according to claim 7, characterized in that The diagonal brace (4) has a telescopic structure inside.

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