Oil collecting groove device for yaw bearing of fan

Abstract

The utility model belongs to the technical field of fan yaw bearing oil collecting grooves, and particularly relates to a fan yaw bearing oil collecting groove device which comprises three oil collecting groove bodies, oil discharging openings are formed in the bottoms of the three oil collecting groove bodies, oil inlets are formed in the tops of the three oil collecting groove bodies, one ends of the three oil collecting groove bodies are connected with fixing blocks, and the other ends of the three oil collecting groove bodies are connected with oil collecting grooves. The top of the fixing block is rotatably connected with a connecting plate, one ends of the three oil collecting groove bodies are connected with a connecting block, a fixing bolt penetrates through the top of the connecting block in a threaded mode, and a first threaded connecting hole is formed in one end of the connecting plate. And then the connecting plate at one end of the oil collecting groove body is rotated, one end of the connecting plate enters the inner side of the C-shaped connecting block, at the moment, fixing can be achieved by rotating the fixing bolt to penetrate through the first threaded connecting hole, compared with a welding fixing mode, the three oil collecting groove bodies can be disassembled only by disassembling the fixing bolt in subsequent maintenance, and therefore convenience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil collecting grooves for yaw bearings of wind turbines, and in particular relates to an oil collecting groove device for yaw bearings of wind turbines. Background Art

[0002] A total of 48 XE72-2000 2MW wind turbines are installed in the wind farm. The yaw bearing of the wind turbine is located between the tower and the nacelle. When the wind turbine leaves the factory, only a simple waste grease oil collecting plate (3 pieces of 1mm thick iron sheets) is installed on the lower end face of the inner ring of the yaw bearing. The oil collecting plate is an open structure. During operation, the wind turbine vibrates and is very easy to fall off and deform. It can only receive the dried yaw bearing waste grease, but cannot receive the hydraulic oil leaked due to the explosion of the yaw brake cylinder of the hydraulic system and the damage of the oil pipe during the long-term operation of the wind turbine. The leaked hydraulic oil drips along the yaw bearing brake disc surface and the inner ring tooth surface to the oil collecting plate. The hydraulic oil leaks from the oil collecting plate and the lower end face of the inner ring of the yaw bearing and spills on the inner wall and platform of the wind turbine tower, and finally drips onto the wind turbine tower base control cabinet, inverter machine side switch cabinet, water cooling cabinet, inverter cabinet and other electrical equipment, polluting the electrical equipment components inside the wind turbine, and then causing equipment tripping and fire accidents.

[0003] At present, the existing wind turbine yaw bearing oil collecting tank device is usually fixedly connected by welding during the production process. Although the welding method is relatively convenient to operate, if the fan yaw bearing oil collecting tank device fails after welding, it is difficult to disassemble it, which is not conducive to subsequent maintenance and increases maintenance costs. Utility Model Content

[0004] The utility model aims to provide an oil collecting trough device for a yaw bearing of a fan, aiming to solve the problem that the existing yaw bearing oil collecting trough device of a fan is usually fixedly connected by welding during the production process. Although the welding method is relatively convenient to operate, if the yaw bearing oil collecting trough device of the fan after welding fails, it is difficult to disassemble it, which is not conducive to subsequent maintenance and increases maintenance costs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fan yaw bearing oil collecting tank device, comprising three oil collecting tank bodies, the bottoms of the three oil collecting tank bodies are provided with oil drain ports, the tops of the three oil collecting tank bodies are provided with oil inlets, one ends of the three oil collecting tank bodies are connected to fixed blocks, the tops of the fixed blocks are rotatably connected to connecting plates, one ends of the three oil collecting tank bodies are connected to connecting blocks, the top threads of the connecting blocks are penetrated by fixing bolts, one end of the connecting plate is provided with a first threaded connecting hole, and the tops of the three oil collecting tank bodies are provided with annular oil guide grooves.

[0006] As a preferred embodiment of the utility model of a wind turbine yaw bearing oil collecting tank device, the two oil collecting tank bodies are distributed in a ring shape.

[0007] As a preferred embodiment of the wind turbine yaw bearing oil collecting trough device of the utility model, the shape of the connecting block is C-shaped.

[0008] As a preferred embodiment of the oil collecting tank device for a yaw bearing of a wind turbine of the utility model, the connecting plate can form a threaded connection structure with the connecting block through fixing bolts and the first threaded connection hole.

[0009] As a preferred embodiment of the utility model, a fan yaw bearing oil collecting tank device is provided with a positioning plate on the top of the three oil collecting tank bodies, three positioning holes are opened on the surface of the positioning plate, positioning bolts penetrate the inner sides of the three positioning holes, and a second threaded connection hole is opened on the bottom of the three oil collecting tank bodies.

[0010] As a preferred embodiment of the oil collecting groove device for a yaw bearing of a wind turbine of the utility model, the three positioning holes are distributed in a ring shape with equal intervals.

[0011] As a preferred embodiment of the utility model, the oil collecting tank device for a yaw bearing of a wind turbine, the oil collecting tank body can form a threaded connection structure with the positioning plate through a positioning hole, a positioning bolt and a second threaded connection hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] By splicing the three oil collecting tank bodies in a ring shape, and then rotating the connecting plate at one end of the oil collecting tank bodies, one end of the connecting plate is allowed to enter the inner side of the C-shaped connecting block. At this time, fixation can be achieved by rotating the fixing bolt through the first threaded connecting hole. Compared with the welding fixation method, subsequent maintenance only requires removing the fixing bolts to disassemble the three oil collecting tank bodies, thereby improving convenience.

[0014] By passing the positioning bolt through the positioning hole and then docking it with the second threaded connection hole at the bottom of the oil collecting tank body, the oil collecting tank body will be fixed on the positioning plate, thereby playing a positioning role before the three oil collecting tank bodies are connected, facilitating the fixation of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a first main structural schematic diagram of the utility model;

[0017] Figure 2 It is a second main structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the utility model when viewed from above;

[0019] Figure 4 It is a schematic diagram of the A enlarged structure of the utility model.

[0020] In the figure: 1. oil collecting tank body; 2. oil drain port; 3. fixing block; 4. connecting plate; 5. connecting block; 6. fixing bolt; 7. first threaded connecting hole; 8. positioning plate; 9. positioning hole; 10. positioning bolt; 11. second threaded connecting hole; 12. oil inlet; 13. annular oil guide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides the following technical solutions: an oil collecting tank device for a yaw bearing of a wind turbine, comprising three oil collecting tank bodies 1, the bottoms of the three oil collecting tank bodies 1 are provided with oil discharge ports 2, the tops of the three oil collecting tank bodies 1 are provided with oil inlets 12, one end of the three oil collecting tank bodies 1 is connected with a fixing block 3, the top of the fixing block 3 is rotatably connected with a connecting plate 4, one end of the three oil collecting tank bodies 1 is connected with a connecting block 5, the top of the connecting block 5 is threaded with a fixing bolt 6, one end of the connecting plate 4 is provided with a first threaded connecting hole 7, and the tops of the three oil collecting tank bodies 1 are provided with an annular oil guide groove 13;

[0023] It should be noted that the oil inlet 12 is located inside the annular oil guide groove 13 .

[0024] Preferably, the two oil collecting tanks 1 are distributed in an annular shape, the connecting block 5 is in a C-shape, and the connecting plate 4 can form a threaded connection structure with the connecting block 5 through the fixing bolts 6 and the first threaded connection holes 7 .

[0025] During specific use, the three oil collecting tank bodies 1 are spliced ​​in a ring shape, and then the connecting plate 4 at one end of the oil collecting tank body 1 is rotated so that one end of the connecting plate 4 enters the inner side of the C-shaped connecting block 5. At this time, fixation can be achieved by rotating the fixing bolt 6 through the first threaded connecting hole 7. Compared with the welding fixation method, subsequent maintenance only requires removing the fixing bolt 6 to disassemble the three oil collecting tank bodies 1.

[0026] Preferably: a positioning plate 8 is provided on the top of the three oil collecting tank bodies 1, three positioning holes 9 are provided on the surface of the positioning plate 8, positioning bolts 10 are passed through the inner sides of the three positioning holes 9, and second threaded connection holes 11 are provided on the bottom of the three oil collecting tank bodies 1. The three positioning holes 9 are distributed in an annular manner with equal spacing. The oil collecting tank body 1 can form a threaded connection structure with the positioning plate 8 through the positioning holes 9, the positioning bolts 10, and the second threaded connection holes 11;

[0027] It should be noted that an opening matching the size and position of the oil discharge port 2 is provided on the surface of the positioning plate 8 .

[0028] During specific use, the positioning bolt 10 is passed through the positioning hole 9 and then docked with the second threaded connection hole 11 at the bottom of the oil collecting tank body 1. At this time, the oil collecting tank body 1 will be fixed on the positioning plate 8, thereby playing a positioning role before the three oil collecting tank bodies 1 are connected.

[0029] Working principle: First, pass the positioning bolt 10 through the positioning hole 9, and then dock it with the second threaded connection hole 11 at the bottom of the oil collecting tank body 1. At this time, the oil collecting tank body 1 will be fixed on the positioning plate 8, so as to play a positioning role before the three oil collecting tank bodies 1 are connected, which is convenient for the fixation of the connection. Then, the three oil collecting tank bodies 1 are spliced ​​in a ring, and then the connecting plate 4 at one end of the oil collecting tank body 1 is rotated so that one end of the connecting plate 4 enters the inner side of the C-shaped connecting block 5. At this time, the fixing bolt 6 can be rotated to pass through the first threaded connection hole 7 to achieve fixation. Compared with the welding fixation method, subsequent maintenance only needs to remove the fixing bolt 6 to disassemble the three oil collecting tank bodies 1, thereby improving convenience.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind turbine yaw bearing oil collecting tank device, comprising three oil collecting tank bodies (1), characterized in that: The bottoms of the three oil collecting tanks (1) are provided with oil drain ports (2), the tops of the three oil collecting tanks (1) are provided with oil inlets (12), one ends of the three oil collecting tanks (1) are connected with fixed blocks (3), the tops of the fixed blocks (3) are rotatably connected with connecting plates (4), one ends of the three oil collecting tanks (1) are connected with connecting blocks (5), the tops of the connecting blocks (5) are threaded with fixing bolts (6), one end of the connecting plates (4) is provided with a first threaded connecting hole (7), and the tops of the three oil collecting tanks (1) are provided with annular oil guide grooves (13).

2. The oil collecting tank device for a yaw bearing of a wind turbine according to claim 1, characterized in that: The two oil collecting tanks (1) are distributed in a ring shape.

3. The oil collecting tank device for a yaw bearing of a wind turbine according to claim 1, characterized in that: The connection block (5) is in a C-shape.

4. The oil collecting tank device for a yaw bearing of a wind turbine according to claim 1, characterized in that: The connecting plate (4) can form a threaded connection structure with the connecting block (5) through a fixing bolt (6) and a first threaded connection hole (7).

5. The oil collecting tank device for a yaw bearing of a wind turbine according to claim 1, characterized in that: A positioning plate (8) is provided on the top of the three oil collecting tank bodies (1), three positioning holes (9) are provided on the surface of the positioning plate (8), positioning bolts (10) penetrate the inner sides of the three positioning holes (9), and a second threaded connection hole (11) is provided on the bottom of the three oil collecting tank bodies (1).

6. The oil collecting tank device for a yaw bearing of a wind turbine according to claim 5, characterized in that: The three positioning holes (9) are distributed in a ring shape with equal spacing.

7. The oil collecting tank device for a yaw bearing of a wind turbine according to claim 5, characterized in that: The oil collecting tank body (1) can form a threaded connection structure with the positioning plate (8) through a positioning hole (9), a positioning bolt (10) and a second threaded connection hole (11).

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