CN217176806U

CN217176806U - Cabin cover

Info

Publication number: CN217176806U
Application number: CN202220951148.3U
Authority: CN
Inventors: 殷锡培; 殷国平; 史志鸿
Original assignee: Jiangsu Fengtai Energy Saving Environmental Protection Technology Co ltd
Current assignee: Jiangsu Fengtai Energy Saving Environmental Protection Technology Co ltd
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-08-12
Anticipated expiration: 2032-04-24

Abstract

The utility model relates to the technical field of wind power generation, in particular to an engine room cover, which comprises a side wall, wherein the side wall is formed by assembling a beam column structure and a plurality of modules, each module comprises an annular frame and a membrane structure embedded in the annular frame, and a tensioning mechanism is arranged in each module and is abutted against the membrane structure; the utility model provides a thereby can carry out the tensioning to soft membrane structure and guarantee cabin cover of cabin cover reliability.

Description

Cabin cover

Technical Field

The utility model relates to a wind power generation technical field, in particular to cabin cover.

Background

The nacelle cover serves as a protective casing of the wind turbine generator system, and can cover and protect a plurality of components of the wind turbine generator system, so that the reliability of the nacelle cover determines the stability requirement and the service life of the operation of the wind turbine generator system.

At present, in order to improve the reliability of the cabin cover, part of the cover body of more and more cabin covers is manufactured by using a film material, the film material is a composite material consisting of a base cloth and a coating or a copolymer such as ETFE (ethylene-propylene-diene monomer) and the like, wherein the base cloth is woven by polyester or glass fiber, and the coating is made of PVC (polyvinyl chloride), PVDF (polyvinylidene fluoride) or PTFE (polytetrafluoroethylene) and the like. Due to the characteristics of the membrane material, the cabin cover is long in service life, light in weight, low in cost, degradable and good in recyclability. However, if the soft cover made of the film material is not tensioned, the soft cover is more likely to be aged after being blown by wind, sun, rain, or the like, thereby affecting the reliability of the cabin cover to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defect and not enough that prior art exists, thereby providing one kind can carry out the tensioning to the soft membrane structure and guarantee the cabin cover of cabin cover reliability.

Realize the utility model discloses the technical scheme of purpose is: the utility model provides an engine room cover, includes the lateral wall, the lateral wall is assembled by beam column structure and a plurality of module and is formed, the module includes annular frame and the embedded membrane structure in annular frame, be equipped with straining device in the module, straining device contradicts with membrane structure.

Further, the annular frame includes outer frame and with outer frame detachable connection's inner frame, the centre gripping of membrane structure is between outer frame and inner frame.

Furthermore, straining device includes the arc cross, the tip of arc cross is connected with the medial surface of internal frame, the convex surface of arc cross extends out the internal frame and contradicts with the membrane structure.

Furthermore, the end part of the arc-shaped cross is movably connected with the inner side surface of the inner frame.

Further, the medial surface of internal frame is equipped with the spout, the spout is embedded to be equipped with the slider, slider and spout sliding fit, be equipped with the spring between the lateral wall of slider and spout, the slider is connected with the end connection of arc cross.

Furthermore, an air bag is arranged between the membrane structure and the arc-shaped cross, and an inflation inlet is arranged on the air bag.

Furthermore, the four corners of the inner frame are respectively provided with a fixing plate, and the end part of the fixing plate far away from the inner frame is in threaded connection with the outer frame through a bolt.

After the technical scheme is adopted, the utility model discloses following positive effect has:

(1) the utility model, through the arrangement of the tensioning mechanism, the tensioning mechanism is abutted against the membrane structure, so that the membrane structure is kept in a tensioning state, and the reliability of the engine room cover is ensured;

(2) the arc-shaped cross frame and the inner frame are movably connected or the air bag is arranged, so that in the using process, if the membrane structure is slightly loosened due to aging, the arc-shaped cross frame can be automatically adjusted in real time, and the membrane structure is continuously abutted, so that the membrane structure is kept in a tensioning state;

(3) the utility model discloses a setting of fixed plate and bolt for outer frame and internal frame detachable connection, thereby be convenient for the membrane structure change after ageing seriously or damaging.

Drawings

In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a front view of the present invention;

FIG. 4 is a sectional view of the module in example 1;

FIG. 5 is a rear view of the module in embodiment 1;

fig. 6 is a cross-sectional view of the module of example 2.

In the figure: the device comprises side walls 1, a beam-column structure 2, a cross beam 2a, a stand column 2b, a module 3, an annular frame 3a, an outer frame 3a1, an inner frame 3a2, a membrane structure 3b, a tensioning mechanism 4, an arc-shaped cross 4a, a sliding groove 4b, a sliding block 4c, a spring 4d, an air bag 5, an inflation opening 5a, a fixing plate 6, a bolt 7, a sealing strip 8, a top plate 9, a bottom plate 10 and a sealing plate 11.

Detailed Description

Example 1

As shown in fig. 1-5, a cabin cover includes a side wall 1, the side wall 1 is formed by assembling a beam column structure 2 and a plurality of modules 3, the beam column structure 2 and the modules 3 are welded, the beam column structure 2 is a frame structure composed of a beam 2a and a column 2b, the joint of the beam 2a and the column 2b is connected by welding, the module 3 includes an annular frame 3a and a membrane structure 3b embedded in the annular frame 3a, the membrane structure 3b is soft in texture, a tensioning mechanism 4 is arranged in the module 3, the tensioning mechanism 4 is abutted against the side face of the membrane structure 32, and the membrane structure 3b is kept in a tensioned state through the arrangement of the tensioning mechanism 4, so that the membrane structure 32 is prevented from being easily aged due to a loose state, and the reliability of the cabin cover is ensured. Specifically, the annular frame 3a includes an outer frame 3a1 and an inner frame 3a2 detachably connected to the outer frame 3a1, and the membrane structure 3b is clamped between the outer frame 3a1 and the inner frame 3a2, so that the membrane structure 3b can be replaced after being seriously aged or damaged through the detachable connection of the outer frame 3a1 and the inner frame 3a 2. The detachable connection between the outer frame 3a1 and the inner frame 3a2 is achieved by: fixing plates 6 are respectively installed at four corner ends of the inner frame 3a2, first threaded holes are formed in the end portions, far away from the inner frame 3a2, of the fixing plates 6, second threaded holes are correspondingly formed in the four corner ends of the outer frame 3a1, and bolts 7 penetrate through the first threaded holes and the second threaded holes, so that the outer frame 3a1 and the inner frame 3a2 are in threaded connection. The tensioning mechanism 4 comprises an arc-shaped cross 4a, the ends of the arc-shaped cross 4a being connected to the inner side of the inner frame 3a2, the convex side of the arc-shaped cross 4a extending out of the inner frame 3a2 to abut against the side of the membrane structure 3 b. In the use process of the cabin cover, if the membrane structure 3b is aged, the membrane structure 3b may slightly collapse, and at this time, the tensioning effect of the arc-shaped cross 4a on the membrane structure 3b may be reduced, and in order to keep the membrane structure 3b in a tensioned state all the time, in this embodiment, the end portion of the arc-shaped cross 4a and the inner side surface of the inner frame 3a2 are movably connected, and the specific structure is as follows: the medial surface of inner frame 3a2 is equipped with spout 4b, and the embedded slider 4c that is equipped with of spout 4b, slider 4c and spout 4b sliding fit, is equipped with spring 4d between the lateral wall of slider 4c and spout 4b, and slider 4c and arc cross 4 a's end connection. In an initial state, the inner frame 3a2 extending out of the convex surface of the arc-shaped cross 4a tightly abuts against the side surface of the membrane structure 3b, the membrane structure 3b is tensioned, the spring 4d is in a compressed state, the membrane structure 3b is slightly loosened due to aging of the membrane structure 3b along with the passage of time, and the spring 4d pushes the slider 4c to move under the elastic action to push the arc-shaped cross 4a to move towards the membrane structure 3b, so that the convex surface of the arc-shaped cross 4a still tightly abuts against the side surface of the membrane structure 3b, and the membrane structure 3b is kept tensioned all the time. In order to improve the stability of the membrane structure 3b sandwiched between the outer frame 3a1 and the inner frame 3a2, the periphery of the membrane structure 3b may be further fixed to the outer frame 3a1 by shooting nails or self-tapping nails. In addition, a sealing strip 8 is embedded between the membrane structure 3b and the outer frame 3a1, so that rainwater is prevented from entering the inside of the nacelle cover through a gap between the membrane structure 3b and the outer frame 3a 1. In order to prevent the water resistance of the sealing strip 8 from being affected by the shooting or tapping screw, the sealing strip 8 is arranged outside the shooting or tapping screw. The top plate 9, the bottom plate 10 and the front and rear end closing plates 11 of the nacelle cover in this embodiment may be made of glass fiber reinforced plastic or metal material, or may be partially made of the membrane structure 32.

When the module 3 is installed, firstly, the outer frames 3a1 are welded side by side in the beam-column structure 2, the outer frames 3a1 are also connected with each other by welding, then the membrane structure 32 and the outer frame 3a1 are pre-fixed, for example, the periphery of the membrane structure 32 can be bonded with the contact surface of the outer frame 3a1, after pre-fixing, the periphery of the membrane structure 32 is fastened with the outer frame 3a1 by shooting nails or self-tapping nails, then the inner frame 3a2 is pressed into the outer frame 3a1 to assemble the outer frame 3a1 and the inner frame 3a2, and finally the bolts 7 are installed in the first threaded holes and the second threaded holes to install the module 3.

Example 2

As shown in fig. 6, in order to keep the membrane structure 3b in a tensioned state all the time, embodiment 1 is implemented by arranging the end part of the arc-shaped cross 4a to be movably connected with the inner side wall of the inner frame 3a2, while in this embodiment, an air bag 5 is arranged between the membrane structure 3b and the arc-shaped cross 4a, an inflation port 5a is arranged on the air bag 5, and the arrangement of the air bag 5 prevents the rib of the arc-shaped cross 4a from directly contacting with the membrane structure 32 to cause stress concentration; on the other hand, when the membrane structure 3b is slightly loosened due to aging, the airbag 5 can be inflated by inflation, so that the membrane structure 3b is kept in a tensioned state.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Nacelle cover comprising side walls (1), characterized in that: lateral wall (1) is assembled by beam column structure (2) and a plurality of module (3) and is formed, module (3) include annular frame (3a) and embedded in membrane structure (3b) of annular frame (3a), be equipped with straining device (4) in module (3), straining device (4) contradict with membrane structure (32).

2. The nacelle cover according to claim 1, wherein: annular frame (3a) include outer frame (3a1) and with outer frame (3a1) detachable connection's inner frame (3a2), membrane structure (3b) centre gripping is between outer frame (3a1) and inner frame (3a 2).

3. A nacelle cover as claimed in claim 2, wherein: the tensioning mechanism (4) comprises an arc-shaped cross (4a), the end of the arc-shaped cross (4a) is connected with the inner side surface of the inner frame (3a2), and the inner frame (3a2) extending out of the convex surface of the arc-shaped cross (4a) is abutted to the membrane structure (3 b).

4. A nacelle cover as claimed in claim 3, wherein: the end part of the arc-shaped cross (4a) is movably connected with the inner side surface of the inner frame (3a 2).

5. The nacelle cover according to claim 4, wherein: the medial surface of inner frame (3a2) is equipped with spout (4b), spout (4b) are embedded to be equipped with slider (4c), slider (4c) and spout (4b) sliding fit, be equipped with spring (4d) between the lateral wall of slider (4c) and spout (4b), slider (4c) and the end connection of arc cross (4 a).

6. The nacelle cover according to claim 5, wherein: an air bag (5) is arranged between the membrane structure (3b) and the arc-shaped cross (4a), and an inflation inlet (5a) is formed in the air bag (5).

7. A nacelle cover as claimed in claim 3, wherein: fixing plates (6) are respectively installed at four corner ends of the inner frame (3a2), and the end parts, far away from the inner frame (3a2), of the fixing plates (6) are in threaded connection with the outer frame (3a1) through bolts (7).