Wind driven generator end cover stable in connection

Abstract

The utility model discloses a wind driven generator end cover stable in connection, belongs to the technical field of generators, and aims to solve the problems that in the prior art, the part, penetrating out of a rear end cover, of a screw structure is exposed outside and is prone to being affected by the outside to be rusted and loosened, the wind driven generator end cover comprises a rear end cover body, and a sliding protection mechanism is arranged in the rear end cover body. The sliding protection mechanism comprises a mounting sleeve shell and a removal sliding frame, and the mounting sleeve shell is arranged in the rear end cover body; according to the wind driven generator, the sliding protection mechanism is arranged, the protection sleeve opening between the rear end cover body and the installation sleeve shell wraps the locking screw, the exposed state is improved, and therefore the situation that the screw is rusted or loosened due to the external influence is relieved; the rear end cover body and the installation sleeve shell are located at the tail of the wind driven generator in a matched mode and are arranged in a double-layer protection mode; and a gap for deformation exists between the rear end cover body and the mounting sleeve shell, so that the risk that the tail part of the wind driven generator is damaged due to extrusion can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of generators, and particularly relates to an end cover of a wind turbine with stable connection. Background Art

[0002] The end cover of a wind turbine is installed at the end of the wind turbine and is used to fix and protect the power transmission system in the wind turbine. The end cover protects the bearing and other key components from the erosion of wind and other harsh environments, and also adds beauty to the appearance of the whole wind turbine.

[0003] At present, most end covers of wind turbines are directly connected by screws. The part where the screw structure passes through the rear end cover is exposed outside and is prone to corrosion and loosening due to external influence. At the same time, there are water seepage gaps when the holes on the rear end cover are locked by screws. These problems lead to a decrease in the connection stability between the rear end cover and the tail of the wind turbine and a general protection performance of the cover body.

[0004] Therefore, an end cover of a wind turbine with stable connection is needed to solve the problems that the part where the screw structure passes through the rear end cover is exposed outside and is prone to corrosion and loosening in the prior art. Content of the Utility Model

[0005] The purpose of the utility model is to provide an end cover of a wind turbine with stable connection to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an end cover of a wind turbine with stable connection, including a rear end cover body. A sliding protection mechanism is arranged inside the rear end cover body. The sliding protection mechanism includes an installation sleeve and a moving slide frame. The installation sleeve is arranged inside the rear end cover body, and the moving slide frame is fixed on the outer side surface of the installation sleeve. A switching mechanism is arranged outside the installation sleeve. The switching mechanism includes a spring sleeve, a telescopic slide rod and an anti - detachment abutting plate. The spring sleeve is fixed on the outer side surface of the rear end cover body, the telescopic slide rod is slidably connected inside the spring sleeve, and the anti - detachment abutting plate is fixed at one end of the telescopic slide rod extending out of the spring sleeve.

[0007] It should be noted in the solution that a bolt through - hole is opened on the side surface of the installation sleeve, and a combined sleeve opening is arranged inside the installation sleeve.

[0008] Further, it is worth noting that a protective sleeve opening is arranged between the rear end cover body and the installation sleeve, and a moving chute is opened on the inner wall of the rear end cover body.

[0009] Furthermore, it should be noted that the moving slide frame is slidably connected at the moving chute of the rear end cover body, and the four moving slide frames are circumferentially distributed along the side surface of the installation sleeve.

[0010] As a preferred embodiment, a positioning socket is provided on the surface of the rear end cover body, and the anti - detachment abutting plate is snap - fitted with the positioning socket of the rear end cover body.

[0011] As a preferred embodiment, a telescopic sliding plate is fixed at one end of the telescopic sliding rod extending into the spring sleeve, and the telescopic sliding plate is slidably connected inside the spring sleeve.

[0012] As a preferred embodiment, a return spring is sleeved on the part of the telescopic sliding rod extending into the spring sleeve. The lower end of the return spring is fixed at the upper end surface of the telescopic sliding plate, and the upper end of the return spring is fixed on the inner top wall of the spring sleeve.

[0013] As a preferred embodiment, the anti - detachment abutting plate is attached to the side surface of the mounting housing, and the anti - detachment abutting plate is distributed in front of the bolt through - hole.

[0014] Compared with the prior art, a wind turbine end cover with stable connection provided by the present utility model has at least the following beneficial effects:

[0015] ⑴ Through the provided sliding protection mechanism, the protective sleeve opening between the rear end cover body and the mounting housing wraps around the outside of the locking screw and improves the exposed state, thereby alleviating the condition that the screw is corroded or loosened due to external influence. Since the rear end cover body and the mounting housing are cooperatively arranged in a double - layer protection at the tail of the wind turbine, and there is a gap for deformation between the rear end cover body and the mounting housing, this can reduce the risk of damage to the tail of the wind turbine caused by extrusion.

[0016] ⑵ Through the provided switching mechanism, during use, the anti - detachment abutting plate can limit the sliding state between the rear end cover body and the mounting housing. The way that the rear end cover body slides and switches states on the mounting housing facilitates exposing the position where the locking screw is located, thereby providing conditions for the subsequent removal operation of the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a three - dimensional view of the overall structure of a wind turbine end cover with stable connection of the present utility model;

[0019] Figure 2 It is a three - dimensional view of the sectional structure of the rear end cover body of a wind turbine end cover with stable connection of the present utility model;

[0020] Figure 3 This is a three-dimensional view of the mounting sleeve structure of an end cover of a wind turbine with stable connection for the present utility model;

[0021] Figure 4 This is a three-dimensional sectional view of the spring sleeve of an end cover of a wind turbine with stable connection for the present utility model.

[0022] In the figure: 1, rear end cover body; 2, mounting sleeve; 3, removal slide; 4, removal chute; 5, protective sleeve opening; 6, bolt through-hole; 7, spring sleeve; 8, telescopic slide rod; 9, anti-disengagement abutment plate; 10, telescopic slide plate; 11, return spring; 12, positioning recess. Specific embodiments

[0023] The following further describes the present utility model in conjunction with embodiments.

[0024] Please refer to Figures 1-4 , the present utility model provides an end cover of a wind turbine with stable connection, including a rear end cover body 1. A sliding protection mechanism is arranged inside the rear end cover body 1. The sliding protection mechanism includes a mounting sleeve 2 and a removal slide 3. The mounting sleeve 2 is arranged inside the rear end cover body 1, and the removal slide 3 is fixed on the outer side surface of the mounting sleeve 2. A switching mechanism is arranged outside the mounting sleeve 2. The switching mechanism includes a spring sleeve 7, a telescopic slide rod 8 and an anti-disengagement abutment plate 9. The spring sleeve 7 is fixed on the outer side surface of the rear end cover body 1, the telescopic slide rod 8 is slidably connected inside the spring sleeve 7, and the anti-disengagement abutment plate 9 is fixed at one end of the telescopic slide rod 8 extending out of the spring sleeve 7.

[0025] Further, as shown in Figure 1 , Figure 2 and Figure 3 , it is specifically noted that a bolt through-hole 6 is formed on the side surface of the mounting sleeve 2, and a combined sleeve opening is arranged inside the mounting sleeve 2.

[0026] Further, as shown in Figure 3 , it is specifically noted that a protective sleeve opening 5 is arranged between the rear end cover body 1 and the mounting sleeve 2, and a removal chute 4 is formed on the inner wall of the rear end cover body 1.

[0027] This solution has the following working process: When installing the end cover, the installation sleeve 2 is sleeved on the rear seat of the wind turbine. Subsequently, the installation sleeve 2 is locked on the wind turbine by screwing a screw through the bolt through-hole 6. Then, the telescopic slide rod 8 is pulled outwards, driving the end of the anti-disengagement abutting plate 9 at one end of the telescopic slide rod 8 to move into the positioning recess 12. Then, the rear end cover body 1 is pushed towards the wind turbine. At this time, the protective sleeve opening 5 between the rear end cover body 1 and the installation sleeve 2 wraps around the outside of the locking screw and improves the exposed state, thereby alleviating the situation where the screw is corroded or loosened due to external influence. Since the rear end cover body 1 and the installation sleeve 2 are arranged in a double-layer protection at the tail of the wind turbine, and there is a gap for deformation between the rear end cover body 1 and the installation sleeve 2, this can reduce the risk of damage to the tail of the wind turbine caused by extrusion.

[0028] According to the above working process, it can be known that: the protective sleeve opening 5 between the rear end cover body 1 and the installation sleeve 2 wraps around the outside of the locking screw and improves the exposed state, thereby alleviating the situation where the screw is corroded or loosened due to external influence. Since the rear end cover body 1 and the installation sleeve 2 are arranged in a double-layer protection at the tail of the wind turbine, and there is a gap for deformation between the rear end cover body 1 and the installation sleeve 2, this can reduce the risk of damage to the tail of the wind turbine caused by extrusion.

[0029] Furthermore, as Figure 1 , Figure 2 and Figure 4 shown, specifically, the removal carriage 3 is slidably connected to the removal chute 4 of the rear end cover body 1, and the four removal carriages 3 are circumferentially distributed along the side surface of the installation sleeve 2.

[0030] Furthermore, as Figure 4 shown, specifically, the positioning recess 12 is formed on the surface of the rear end cover body 1, and the anti-disengagement abutting plate 9 is snap-fitted with the positioning recess 12 of the rear end cover body 1.

[0031] Furthermore, as Figure 1 shown, specifically, a telescopic slide plate 10 is fixed to the end of the telescopic slide rod 8 extending into the spring sleeve 7, and the telescopic slide plate 10 is slidably connected to the inside of the spring sleeve 7.

[0032] Furthermore, as Figure 1As shown, it is worth specifically stating that a return spring 11 is sleeved on the part of the telescopic slide rod 8 extending into the spring sleeve 7. The lower end of the return spring 11 is fixed on the upper end surface of the telescopic slide plate 10, and the upper end of the return spring 11 is fixed on the inner top wall of the spring sleeve 7. During use, the anti-detachment abutting plate 9 abuts against the side surface of the mounting housing 2 under the resilience of the return spring 11 inside the spring sleeve 7. In this way, the anti-detachment abutting plate 9 can limit the anti-slip of the sliding state between the rear end cover 1 and the mounting housing 2, and the way the rear end cover 1 slides and switches states on the mounting housing 2 facilitates the exposure of the locking screws, thus providing conditions for the subsequent removal operation of the end cover.

[0033] Furthermore, as Figure 1 shown, it is worth specifically stating that the anti-detachment abutting plate 9 is attached to the side surface of the mounting housing 2, and the anti-detachment abutting plate 9 is distributed in front of the bolt through-hole 6.

[0034] In summary: The protective sleeve opening 5 between the rear end cover 1 and the mounting housing 2 wraps around the outside of the locking screws and improves the exposed state, thus alleviating the condition that the screws are corroded or loosened due to external influences. Since the rear end cover 1 and the mounting housing 2 are arranged in a double-layer protection at the tail of the wind turbine, and there is a gap for deformation between the rear end cover 1 and the mounting housing 2, this can reduce the risk of damage to the tail of the wind turbine caused by extrusion; during use, the anti-detachment abutting plate 9 can limit the anti-slip of the sliding state between the rear end cover 1 and the mounting housing 2, and the way the rear end cover 1 slides and switches states on the mounting housing 2 facilitates the exposure of the part where the locking screws are located, thus providing conditions for the subsequent removal operation of the end cover.

[0035] The above-mentioned are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A wind turbine end cover with stable connection, comprising a rear end cover body (1), characterized in that: A sliding protection mechanism is arranged inside the rear end cover body (1). The sliding protection mechanism includes an installation sleeve housing (2) and a removal sliding frame (3). The installation sleeve housing (2) is arranged inside the rear end cover body (1), and the removal sliding frame (3) is fixed on the outer side surface of the installation sleeve housing (2). A switching mechanism is arranged outside the installation sleeve housing (2). The switching mechanism includes a spring sleeve (7), a telescopic sliding rod (8), and an anti-disengagement abutment plate (9). The spring sleeve (7) is fixed on the outer side surface of the rear end cover body (1), the telescopic sliding rod (8) is slidably connected inside the spring sleeve (7), and the anti-disengagement abutment plate (9) is fixed at one end of the telescopic sliding rod (8) extending out of the spring sleeve (7).

2. The end cover of a wind turbine with stable connection according to claim 1, characterized in that: A bolt through-hole (6) is formed on the side surface of the installation sleeve housing (2), and a combined sleeve opening is arranged inside the installation sleeve housing (2).

3. The end cover of a wind turbine with stable connection according to claim 2, characterized in that: A protective sleeve opening (5) is arranged between the rear end cover body (1) and the installation sleeve housing (2), and a removal sliding groove (4) is formed on the inner wall of the rear end cover body (1).

4. A wind turbine end cover with stable connection according to claim 3, characterized in that: The removal sliding frame (3) is slidably connected to the removal sliding groove (4) of the rear end cover body (1), and the four removal sliding frames (3) are circumferentially distributed along the side surface of the installation sleeve housing (2).

5. The end cover of a wind turbine with stable connection according to claim 4, characterized in that: A positioning socket (12) is formed on the surface of the rear end cover body (1), and the anti-disengagement abutment plate (9) is in snap-fit with the positioning socket (12) of the rear end cover body (1).

6. The end cover of a wind turbine with stable connection according to claim 5, wherein: One end of the telescopic sliding rod (8) extending into the spring sleeve (7) is fixed with a telescopic sliding plate (10), and the telescopic sliding plate (10) is slidably connected inside the spring sleeve (7).

7. A stable connection end cover of a wind turbine according to claim 6, characterized in that: A return spring (11) is sleeved on the part of the telescopic sliding rod (8) extending into the spring sleeve (7). The lower end of the return spring (11) is fixed on the upper end surface of the telescopic sliding plate (10), and the upper end of the return spring (11) is fixed on the inner top wall of the spring sleeve (7).

8. A wind turbine end cover with stable connection according to claim 7, characterized in that: The anti-disengagement abutment plate (9) is attached to the side surface of the installation sleeve housing (2), and the anti-disengagement abutment plate (9) is distributed in front of the bolt through-hole (6).

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