Anti-loosening wind power nut fastener

Abstract

The utility model discloses an anti-loose wind power nut fastener, and relates to the field of mechanical parts. The screw comprises a screw body, a nut body and a locking piece, vertical grooves are formed in the two sides of the peripheral surface of the screw body, and the nut body is in threaded fit with the screw body. The screw body, the nut body and the locking piece are arranged, the matching rod is moved to the upper end in the vertical groove of the screw body, then the nut body is screwed on the screw body, the matching rod slides down, one end of the matching rod penetrates through the nut body, and the protruding block at the other end of the matching rod is matched with the groove in a buckled mode. Meanwhile, a screw hole in a convex block is aligned with a round hole, then a vertical block is placed in a vertical groove, the vertical block is slid, an inserting block and an inserting groove are fixed in an inserting mode, the surface of a transverse plate is attached to the bottom surface of the nut body, a matching block is attached to the side face of the nut body, and then a fixing screw is rotated, so that one end of the fixing screw penetrates through the round hole and is fixed to the screw hole in a threaded mode; therefore, the nut body is braked.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical parts, and particularly relates to a loosening-preventing wind power nut fastener. Background Technique

[0002] In recent years, the wind power industry, especially large-capacity megawatt-level large wind turbines, has developed rapidly. Due to the long-term field service of high-strength nuts used in wind power equipment, the environment is harsh and the maintenance conditions are poor, so there are higher requirements for nut anti-loosening.

[0003] A large number of nut fasteners are used in wind turbines for fixation. Since the wind turbines are always in operation, the vibration generated by mechanical movement will cause the threads to loosen, affecting the stability and safety of the wind turbines. Content of the Utility Model

[0004] The purpose of the utility model is to provide a loosening-preventing wind power nut fastener to solve the problem that a large number of nut fasteners are used in wind turbines for fixation. Since the wind turbines are always in operation, the vibration generated by mechanical movement will cause the threads to loosen, affecting the stability and safety of the wind turbines.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a loosening-preventing wind power nut fastener, including a screw body, a nut body and a locking member. Vertical grooves are opened on both sides of the circumferential surface of the screw body. The nut body is in threaded cooperation with the screw body. The locking member includes a cross plate and a fitting rod. There are two groups of cross plates, and the two groups of cross plates are respectively arranged on both sides of the bottom end of the nut body. One end of the cross plate is fixedly connected with a vertical block, and the other end is fixedly connected with a fitting block. There are two groups of fitting rods, and the two groups of fitting rods are respectively arranged in the two vertical grooves and are in sliding cooperation with the vertical grooves. One end of the fitting rod is fixedly connected with a convex block, and the convex block is arranged outside the vertical groove. A screw hole is opened inside the convex block. The other end of the fitting rod is opened with a plugging groove. The size of the vertical block is the same as that of the fitting rod. A plugging block is fixedly connected to the top end of the vertical block, and the plugging block is in plugging cooperation with the plugging groove; by opening vertical grooves on the circumferential side of the screw body, a larger contact area and friction force can be generated with the inside of the nut body, which helps to prevent the nut body from loosening under vibration or impact.

[0007] A groove is opened on the upper surface of the nut body, and the groove is in snap-fit with the convex block. A plurality of groups of round holes are evenly distributed on the circumferential side surface of the nut body, and the round holes are communicated with the groove. One end of the fitting block is in threaded connection with a fixing screw, and the fixing screw is in threaded fit with the screw hole.

[0008] The length of the horizontal plate is consistent with the side thickness of the nut body, and the height of the vertical block is lower than that of the mating block.

[0009] One side of the mating block is fixedly connected with a connecting elastic sheet, and the periphery of the fixing screw is fixedly connected with a mating elastic sheet; by providing the connecting elastic sheet and the mating elastic sheet, when the fixing screw is screwed, the mating elastic sheet on the periphery of the fixing screw is in close contact with the connecting elastic sheet to form a mutual acting force, so that the connection between the fixing screw and the mating block is tightly fixed, improving the stability of the fixing screw.

[0010] The size of the round hole is larger than that of the fixing screw.

[0011] The utility model has the following beneficial effects:

[0012] By providing a screw body, a nut body and a locking member, the utility model first moves the mating rod to the upper end in the vertical groove of the screw body, then screws the nut body onto the screw body, and then slides the mating rod down so that one end of the mating rod passes through the nut body, and the convex block at the other end is in snap fit with the groove. At the same time, the screw hole on the convex block is aligned with the round hole. Subsequently, the vertical block is placed in the vertical groove, and the vertical block is slid so that the insertion block is inserted and fixed with the insertion groove, the surface of the horizontal plate is attached to the bottom surface of the nut body, and the mating block is attached to the side surface of the nut body. Then the fixing screw is rotated so that one end thereof penetrates the round hole and is threadedly fixed with the screw hole, thereby playing a braking role on the nut body, effectively avoiding the problem that the vibration generated by mechanical movement due to the operation of the wind turbine will cause the thread to loosen, affecting the stability and safety of the wind turbine.

[0013] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0015] Figure 1 is a schematic three-dimensional assembly structure diagram of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged view of area A in

[0017] Figure 3 is a bottom view of the assembly structure of the present utility model;

[0018] Figure 4 isFigure 3 Enlarged view of area B in the figure.

[0019] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0020] 1. Screw body; 101. Vertical groove; 2. Nut body; 201. Groove; 202. Round hole; 3. Locking member; 301. Horizontal plate; 302. Vertical block; 303. Insertion block; 304. Fitting block; 305. Fixing screw; 306. Connecting elastic piece; 307. Fitting elastic piece; 308. Fitting rod; 309. Screw hole; 310. Insertion groove. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", etc. indicating the orientation or position relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figures 1-4As shown in the figure, the utility model relates to a loosening-preventing type wind power nut fastener, which comprises a screw body 1, a nut body 2 and a locking member 3. Vertical grooves 101 are formed on both sides of the circumferential surface of the screw body 1. The nut body 2 is in threaded fit with the screw body 1. The locking member 3 includes a transverse plate 301 and a fitting rod 308. There are two groups of transverse plates 301, which are respectively arranged on both sides of the bottom end of the nut body 2. One end of the transverse plate 301 is fixedly connected with a vertical block 302, and the other end is fixedly connected with a fitting block 304. There are two groups of fitting rods 308, which are respectively arranged in the two groups of vertical grooves 101 and are in sliding fit with the vertical grooves 101. One end of the fitting rod 308 is fixedly connected with a convex block, and the convex block is arranged outside the vertical groove 101. A screw hole 309 is formed inside the convex block. The other end of the fitting rod 308 is provided with a plugging groove 310. The size of the vertical block 302 is the same as that of the fitting rod 308. The top end of the vertical block 302 is fixedly connected with a plugging block 303, and the plugging block 303 is in plugging fit with the plugging groove 310. By providing the vertical grooves 101 on the circumferential side of the screw body 1, a larger contact area and friction force can be generated with the inside of the nut body 2, which helps to prevent the nut body 2 from loosening under vibration or impact.

[0025] A groove 201 is formed on the upper surface of the nut body 2, and the groove 201 is in snap fit with the convex block. A plurality of groups of round holes 202 are evenly distributed on the circumferential side surface of the nut body 2, and the round holes 202 are communicated with the groove 201. One end of the fitting block 304 is in threaded connection with a fixing screw 305, and the fixing screw 305 is in threaded fit with the screw hole 309.

[0026] The length of the transverse plate 301 is the same as the side thickness of the nut body 2, and the height of the vertical block 302 is lower than the height of the fitting block 304.

[0027] One side surface of the fitting block 304 is fixedly connected with a connecting elastic sheet 306, and the circumferential side of the fixing screw 305 is fixedly connected with a fitting elastic sheet 307. By providing the connecting elastic sheet 306 and the fitting elastic sheet 307, when the fixing screw 305 is screwed, the fitting elastic sheet 307 on the circumferential side of the fixing screw 305 is in close contact with the connecting elastic sheet 306 to form a mutual acting force, so that the connection between the fixing screw 305 and the fitting block 304 is tightly fixed, and the stability of the fixing screw 305 is improved.

[0028] The size of the round hole 202 is larger than the size of the fixing screw 305.

[0029] It should be noted that in actual use, first move the mating rod 308 to the upper end in the vertical groove 101 of the screw body 1, then screw the nut body 2 onto the screw body 1, and then slide the mating rod 308 down so that one end of the mating rod 308 passes through the nut body 2, and the convex block at the other end is snap-fitted with the groove 201. At the same time, align the screw hole 309 on the convex block with the round hole 202. Subsequently, place the vertical block 302 in the vertical groove 101, slide the vertical block 302, so that the plug-in block 303 is plugged and fixed with the plug-in groove 310, make the surface of the horizontal plate 301 abut against the bottom surface of the nut body 2, and make the mating block 304 abut against the side surface of the nut body 2. Then rotate the fixing screw 305 so that one end thereof passes through the round hole 202 and is thread-fixed with the screw hole 309, thereby playing a role in braking the nut body 2, effectively avoiding the problem that the vibration generated by mechanical movement during the operation of the wind turbine will cause the thread to loosen, affecting the stability and safety of the wind turbine.

[0030] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A loosening-preventing wind power nut fastener, comprising a screw body (1), a nut body (2) and a locking member (3), characterized in that: On both sides of the circumferential surface of the screw body (1), vertical grooves (101) are provided. The nut body (2) is in threaded cooperation with the screw body (1). The locking member (3) includes a transverse plate (301) and a mating rod (308). There are two groups of the transverse plates (301), and the two groups of the transverse plates (301) are respectively arranged on both sides of the bottom end of the nut body (2). One end of the transverse plate (301) is fixedly connected with a vertical block (302), and the other end is fixedly connected with a mating block (304). There are two groups of the mating rods (308), and the two groups of the mating rods (308) are respectively arranged in the two vertical grooves (101) and are in sliding cooperation with the vertical grooves (101). One end of the mating rod (308) is fixedly connected with a convex block, and the convex block is arranged outside the vertical groove (101). A screw hole (309) is provided inside the convex block. The other end of the mating rod (308) is provided with a plug-in groove (310). The size of the vertical block (302) is the same as that of the mating rod (308). The top end of the vertical block (302) is fixedly connected with a plug-in block (303), and the plug-in block (303) is in plug-in cooperation with the plug-in groove (310).

2. The anti-loosening type wind power nut fastener according to claim 1, wherein A groove (201) is provided on the upper surface of the nut body (2), and the groove (201) is in snap-fit with the convex block. A plurality of circular holes (202) are evenly distributed on the circumferential side surface of the nut body (2), and the circular holes (202) are communicated with the groove (201). One end of the mating block (304) is threadedly connected with a fixing screw (305), and the fixing screw (305) is threadedly adapted to the screw hole (309).

3. The anti-loosening type wind power nut fastener according to claim 2, characterized in that, The length of the transverse plate (301) is the same as the side thickness of the nut body (2), and the height of the vertical block (302) is lower than the height of the mating block (304).

4. A loosening prevention type wind power nut fastener according to claim 3, characterized in that, One side surface of the mating block (304) is fixedly connected with a connecting elastic sheet (306), the connecting elastic sheet (306) is arranged on the periphery of the fixing screw (305), and the periphery of the fixing screw (305) is fixedly connected with a mating elastic sheet (307).

5. The anti-loosening wind power nut fastener according to claim 4, characterized in that, The size of the circular hole (202) is larger than the size of the fixing screw (305).

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