A box structure of a wind power gear box

Abstract

This utility model provides a gearbox housing structure for wind turbines, relating to the field of wind turbine gearbox technology. It includes: a first housing; the first housing and a second housing are fixed together by eight first fixing screws; four auxiliary seats are welded onto the second housing, all of which are concave structures. This application uses eight first fixing screws to fix the first housing and the second housing, and utilizes the four concave auxiliary seats on the second housing to abut the left side of the screws, effectively reducing the probability of loosening of the first fixing screws, thereby reducing oil leakage problems caused by loose screws and improving the stability of equipment operation. Regarding ease of assembly, the two insertion rods of the first housing precisely match the two insertion holes of the second housing. The left end of the insertion rod is ground into an arc shape, which, combined with the circular insertion hole, makes the insertion process smoother. Simultaneously, it ensures that the threaded holes of the first fixing screws can be accurately aligned without repeated alignment, significantly improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine gearbox technology, and in particular to a gearbox housing structure for wind turbines. Background Technology

[0002] The wind turbine gearbox is a crucial transmission component in a wind turbine generator set. Its main function is to convert the low-speed, high-torque power generated by the wind energy captured by the wind turbine into the high-speed, low-torque power required by the generator, thereby driving the generator to generate electricity efficiently. Currently, most wind turbine gearboxes are composed of two parts.

[0003] Existing wind turbine gearboxes, after being fixed by screws, cannot automatically limit the screws through friction. After a period of use, the screws are prone to loosening, which can lead to oil leaks. Utility Model Content

[0004] This utility model relates to a housing structure for a wind turbine gearbox, which solves the problem that existing wind turbine gearboxes, after being fixed by screws, cannot automatically limit the screws through friction, and the screws tend to loosen after a period of use, leading to oil leakage.

[0005] This utility model provides a housing structure for a wind turbine gearbox, specifically including: a first housing; the first housing and the second housing are fixed together by eight first fixing screws, and four auxiliary seats are welded on the second housing. The four auxiliary seats are all concave structures, and the left side ends of the eight first fixing screws are respectively pressed against the inner side of the four auxiliary seats.

[0006] The first housing has two symmetrically welded plug rods, and the second housing has two symmetrically opened plug holes. The two plug rods are inserted into the two plug holes. When the two plug rods are inserted into the two plug holes, the first fixing screw on the first housing is aligned with the threaded hole on the second housing.

[0007] Furthermore, the insertion hole is a circular hole structure, the insertion rod is a cylindrical rod structure, and the left end of the insertion rod is polished, resulting in an arc-shaped structure on the left end of the insertion rod after polishing.

[0008] Furthermore, a sealing gasket is attached to the second housing. The sealing gasket is made of rubber and is flattened when the eight first fixing screws are tightened.

[0009] Furthermore, the second housing has an adhesion groove, and the sealing gasket is adhered to and snapped into the adhesion groove.

[0010] Furthermore, an auxiliary component is installed on the first housing. The auxiliary component consists of a base block and a second fixing screw. Two base blocks are symmetrically welded on the first housing, and a second fixing screw is inserted into each base block. Both second fixing screws are threaded onto the second housing.

[0011] This utility model provides a housing structure for a wind turbine gearbox, which has the following beneficial effects:

[0012] This application uses eight first fixing screws to fix the first housing and the second housing, and uses four concave auxiliary seats on the second housing to abut the left side of the screws, which can effectively reduce the probability of the first fixing screws loosening, thereby reducing the oil leakage problem caused by screw loosening and improving the stability of equipment operation.

[0013] In terms of ease of assembly, the two plug-in rods of the first housing and the two plug-in holes of the second housing are precisely matched. The left end of the plug-in rod is polished into an arc shape and matched with the round plug-in hole, making the plugging process smoother. At the same time, it ensures that the threaded hole of the first fixing screw can be accurately aligned without repeated alignment, which greatly improves the assembly efficiency.

[0014] In terms of sealing performance, the adhesion groove of the second housing provides accurate installation positioning for the rubber gasket, eliminating the need for repeated adjustments. When the first fixing screw is tightened, the gasket is flattened, significantly enhancing the sealing performance at the housing connection and further reducing the risk of oil leakage.

[0015] In addition, the auxiliary component consisting of the base block on the first housing and the second fixing screw reinforces the second housing through threaded connection, effectively improving the overall structural stability and avoiding oil leakage caused by loose housing connection. This ensures the reliable operation of the gearbox from multiple dimensions, while taking into account both ease of installation and safety of use. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 A schematic diagram of the axial view of the gearbox housing structure of this utility model is shown.

[0020] Figure 2 The diagram shows a front view of the gearbox structure of the wind turbine of this utility model.

[0021] Figure 3A top view of the housing structure of the wind turbine gearbox of this utility model is shown.

[0022] Figure 4 This utility model is shown Figure 3 A magnified structural diagram at point A;

[0023] Figure 5 A split-axis view of the housing structure of the wind turbine gearbox of this utility model is shown.

[0024] Figure 6 The diagram shows a front view of the wind turbine gearbox structure after axial view splitting.

[0025] List of reference numerals

[0026] 1. First housing; 101. Insertion rod; 2. Second housing; 201. Adhesion groove; 202. Sealing gasket; 203. Insertion hole; 3. First fixing screw; 4. Auxiliary component; 401. Base block; 402. Second fixing screw; 5. Auxiliary seat. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The use of terms such as "a," "an," or "the" in this utility model patent application specification and claims does not indicate a quantity limitation, but rather indicates the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0029] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0030] Example 1: Please refer to Figures 1 to 6 :

[0031] This utility model proposes a gearbox housing structure for wind turbines, comprising: a first housing 1; the first housing 1 and the second housing 2 are fixed together by eight first fixing screws 3, and four auxiliary seats 5 are welded on the second housing 2. The four auxiliary seats 5 are all concave structures. The left side ends of the eight first fixing screws 3 are respectively pressed against the inner side of the four auxiliary seats 5. During use, the pressing between the first fixing screws 3 and the auxiliary seats 5 can reduce the probability of the first fixing screws 3 loosening, thereby reducing the probability of oil leakage caused by the loosening of the first fixing screws 3.

[0032] The first housing 1 has two symmetrically welded plug rods 101, and the second housing 2 has two symmetrically opened plug holes 203. The two plug rods 101 are inserted into the two plug holes 203. When the two plug rods 101 are inserted into the two plug holes 203, the first fixing screw 3 on the first housing 1 is aligned with the threaded hole on the second housing 2. When assembling the first housing 1 and the second housing 2, it is not necessary to repeatedly align the threaded hole of the first fixing screw 3, thus improving the assembly efficiency.

[0033] The insertion hole 203 is a circular hole structure, and the insertion rod 101 is a cylindrical rod structure. The left end of the insertion rod 101 is polished, and after polishing, the left end of the insertion rod 101 is an arc structure, which will make it smoother when the insertion rod 101 is inserted into the insertion hole 203.

[0034] The second housing 2 is attached with a sealing gasket 202, which is made of rubber. When the eight first fixing screws 3 are tightened, the sealing gasket 202 is flattened. During use, the sealing gasket 202 can improve the sealing performance of the first housing 1 and the second housing 2 after assembly.

[0035] The first housing 1 is equipped with an auxiliary component 4, which consists of a base block 401 and a second fixing screw 402. Two base blocks 401 are symmetrically welded to the first housing 1, and a second fixing screw 402 is inserted into each base block 401. Both second fixing screws 402 are threaded onto the second housing 2. During use, the base blocks 401 and the second fixing screws 402 can improve the stability of the first housing 1 and the second housing 2 after assembly, and avoid the phenomenon of oil leakage caused by loosening at the connection between the first housing 1 and the second housing 2.

[0036] Example 2, based on Example 1, such as Figures 1 to 6As shown, the second housing 2 has an adhesion groove 201, and the sealing gasket 202 is adhered and snapped into the adhesion groove 201. The setting of the adhesion groove 201 makes it more convenient and accurate to adhere the sealing gasket 202 to the second housing 2, without having to repeatedly adjust the position of the sealing gasket 202 on the second housing 2.

[0037] The working principle of this embodiment is as follows: During assembly, the sealing gasket 202 is adhered to the adhesion groove 201, the two plug rods 101 on the first housing 1 are inserted into the plug holes 203 on the second housing 2, and then the first housing 1 and the second housing 2 are locked and fixed using eight first fixing screws 3. Then, the two second fixing screws 402 are inserted into the two base blocks 401 and tightened onto the second housing 2.

Claims

1. A housing structure for a wind turbine gearbox, characterized in that, include: First housing (1); the first housing (1) and the second housing (2) are fixed together by eight first fixing screws (3). Four auxiliary seats (5) are welded on the second housing (2). The four auxiliary seats (5) are all concave structures. The left side end of the eight first fixing screws (3) is respectively pressed against the inner side of the four auxiliary seats (5).

2. The housing structure of a wind turbine gearbox according to claim 1, characterized in that, Two plug rods (101) are symmetrically welded on the first housing (1), and two plug holes (203) are symmetrically opened on the second housing (2). The two plug rods (101) are inserted into the two plug holes (203). When the two plug rods (101) are inserted into the two plug holes (203), the first fixing screw (3) on the first housing (1) is aligned with the threaded hole on the second housing (2).

3. The housing structure of a wind turbine gearbox according to claim 2, characterized in that, The insertion hole (203) is a circular hole structure, and the insertion rod (101) is a cylindrical rod structure. The left end of the insertion rod (101) is polished, and after polishing, the left end of the insertion rod (101) is an arc structure.

4. The housing structure of a wind turbine gearbox according to claim 3, characterized in that, A sealing gasket (202) is attached to the second housing (2). The sealing gasket (202) is made of rubber. When the eight first fixing screws (3) are tightened, the sealing gasket (202) is flattened.

5. The housing structure of a wind turbine gearbox according to claim 4, characterized in that, The second housing (2) has an adhesion groove (201) and the sealing gasket (202) is adhered to and snapped into the adhesion groove (201).

6. The housing structure of a wind turbine gearbox according to claim 5, characterized in that, An auxiliary component (4) is installed on the first housing (1). The auxiliary component (4) consists of a base block (401) and a second fixing screw (402). Two base blocks (401) are symmetrically welded on the first housing (1). A second fixing screw (402) is inserted into each base block (401). Both second fixing screws (402) are threaded onto the second housing (2).

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