Filter element of gearbox filter of wind turbine generator

Abstract

The utility model relates to the technical field of gearbox filtering, and particularly discloses a wind turbine gearbox filter element which comprises an inner cylinder, a filter element structure and an outer shell which are sequentially arranged from inside to outside, a plurality of sieve holes A are formed in the lower surface of an outer convex folding type cylinder in a surrounding mode, and a plurality of through holes are formed in the circumferential surface of the inner cylinder. The filter element structure comprises a filter element A, a filter element B and a filter element C which are sequentially arranged from outside to inside, a sealing cover is tightly arranged at the top end of the outer shell, and an oil discharge hole is formed in the middle of the sealing cover. According to the device disclosed by the invention, the convex folding type cylinder is matched with the sieve pores A formed in the lower inclined surface, so that the probability that gearbox oil impurities are hung on the sieve pores A can be reduced, and the problem that the filtering effect is reduced due to the fact that large-particle impurities are attached to the surface of the filter element is effectively solved; and the gearbox oil is fully purified and filtered by utilizing three layers of filter element structures with different filtering accuracies, so that the purity of the gearbox oil is effectively improved, and the service life of the gearbox structure is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear box filter technology field, concretely related to a wind turbine generator system gear box filter element. BACKGROUND

[0002] During the operation of the gear box, the lubricating oil will be continuously contaminated by impurities such as metal particles, dust, moisture, etc. If these impurities are not removed in time, they will seriously affect the performance of the lubricating oil and reduce its cleanliness. Clean lubricating oil can better play a lubricating role and reduce the wear of the internal components of the gear box, thereby reducing the failure rate of the equipment. The current gear box lubricating oil filtration system draws the gear box oil to the filter, purifies the lubricating oil through the filter element, and then delivers the purified lubricating oil back to the gear box for use. The filter element is composed of an internal metal core and an external non-metal filter element structure. Large particles of gear box oil can easily and quickly adhere to the surface of the filter element, affecting the filtering effect of the filter element, and improvement is urgently needed. Therefore, we propose a wind turbine generator system gear box filter element. SUMMARY

[0003] To solve the above problems, the utility model provides a wind turbine generator system gear box filter element.

[0004] To achieve the above technical purposes, the technical scheme of the utility model is as follows:

[0005] A wind turbine generator system gear box filter element, comprising an inner cylinder, a filter element structure and an outer shell arranged in order from inside to outside, the outer shell is composed of a plurality of outer convex folded cylinders and a plurality of cylinders, a plurality of sieve holes A are arranged on the lower surface of the outer convex folded cylinder, a plurality of sieve holes B are arranged on the circumferential surface of the cylinder, a plurality of through holes are arranged on the circumferential surface of the inner cylinder, the filter element structure comprises filter element A, filter element B and filter element C arranged in order from outside to inside, a cover is tightly arranged at the top end of the outer shell, and an oil discharge hole is arranged in the middle of the cover.

[0006] Further, the angle between the upper surface and the lower surface of the outer convex folded cylinder is 100°-120°.

[0007] Further, the sieve holes A are vertically arranged, and the sieve holes B are horizontally arranged.

[0008] Further, the filtering accuracy of the filter element A, the filter element B and the filter element C is 50 μm, 40 μm and 30 μm in order.

[0009] Further, the cover comprises a top cover and a boss concentrically arranged at the bottom of the top cover, the boss is embedded between the outer shell and the inner cylinder, and the bottom end of the boss is attached to the top end of the filter element structure.

[0010] Further, the sieve hole B is attached to the outer circular surface of the filter core A, and the inner circular surface of the filter core C is attached to the outer circular surface of the inner cylinder.

[0011] The beneficial effects of the utility model are as follows: the sieve hole A arranged on the outer convex folding cylinder cooperates with the lower inclined surface, the probability of gear box oil impurities being attached to the sieve hole A is reduced, the problem of the filtering effect being reduced due to large-particle impurities being attached to the filter core surface is effectively solved, large-particle impurities are preliminarily isolated through the outer convex folding cylinder, gear box oil is fully purified and filtered through the filter core structure with three layers of different filtering precision, the purity of the gear box oil is effectively improved, and the service life of the gear box structure is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] The utility model will be further described in detail according to the drawings.

[0014] Figure 1 It is the structural schematic diagram of the outer shell and the inner cylinder;

[0015] Figure 2 It is the structural schematic diagram of the filter core structure;

[0016] Figure 3 It is the local enlarged schematic diagram of the filter core of the gear box filter of the wind turbine;

[0017] Figure 4 It is the structural schematic diagram of the cover.

[0018] In the drawings:

[0019] 1, outer shell;101, outer convex folding cylinder;102, cylinder;2, inner cylinder;3, filter core structure;301, filter core A;302, filter core B;303, filter core C;4, cover;401, top cover;402, boss;5, sieve hole A;6, sieve hole B. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art belong to the protection scope of the utility model.

[0021] AsFigures 1-4 The utility model discloses a kind of wind turbine gearbox filter filter element, including the inner cylinder 2, filter element structure 3 and outer shell body 1 sequentially arranged from inside to outside, outer shell body 1 is composed of several outer convex folding type cylinder 101 and several cylinder 102 staggered, the lower surface of outer convex folding type cylinder 101 is surrounded and is provided with several mesh holes A5, the circumferential surface of cylinder 102 is provided with several mesh holes B6, the circumferential surface of inner cylinder 2 is provided with several through holes, filter element structure 3 includes filter element A 301, filter element B 302 and filter element C 303 sequentially arranged from outside to inside, outer shell body 1 top is tightly arranged with cover 4, cover 4 middle part is provided with oil drain hole.

[0022] Example one: outer shell body 1 and inner cylinder 2 are stainless steel material, outer shell body 1 top and bottom are all unperforated annular, outer shell body 1 bottom is closed, outer shell body 1 top is open, outer convex folding type cylinder 101 and mesh hole B6 of outer shell body 1 are staggered, outer convex folding type cylinder 101 is composed of upper and lower symmetrical inclined surface cone ring, the lower surface of outer convex folding type cylinder 101 is provided with the vertically arranged mesh hole A5, since lower surface is inclined and mesh hole A5 is vertically arranged, large particle impurities cannot be attached to the surface of mesh hole A5 due to gravity, lubricating oil can enter the inside of outer shell body 1 from the mesh hole A5, mesh hole B6 of outer shell body 1, so as to be filtered through three layers of filter element structure 3, and purified lubricating oil enters inner cylinder 2, and the pipeline of pump body extends into inner cylinder 2 to extract purified lubricating oil.

[0023] In the preferred technical solution, the included angle between the upper surface and the lower surface of outer convex folding type cylinder 101 is set to 100 °~120 °, the mesh hole A5 is vertically arranged, the mesh hole B6 is horizontally arranged, the lower surface of outer convex folding type cylinder 101 is inclined, and the mesh hole A5 is vertically arranged, so that large particle impurities cannot be attached to the surface of mesh hole A5 due to gravity, which can reduce the situation that the filtering effect is reduced due to the attachment of large particle impurities to the surface of the filter element.

[0024] In the preferred technical solution, the filtering accuracy of filter element A 301, filter element B 302 and filter element C 303 is 50 μm, 40 μm and 30 μm in turn, lubricating oil is filtered three times through filter element A 301, filter element B 302 and filter element C 303, and the filtering accuracy is improved in turn, which not only has good filtering effect, but also can effectively protect the filter element part with high filtering accuracy, fully play its filtering performance, and filter element A 301, filter element B 302 and filter element C 303 are connected by fluorine rubber sheet.

[0025] In the preferred technical solution, the cover 4 comprises a top cover 401 and a boss 402 concentrically arranged at the bottom of the top cover 401, the boss 402 is inlaid between the outer shell 1 and the inner cylinder 2, the bottom end of the boss 402 is attached to the top end of the filter core structure 3, and the bottom end of the boss 402 is clamped between the top end of the outer shell 1 and the top end of the inner cylinder 2, for sealing the opening of the top end of the outer shell 1 and the top end of the inner cylinder 2, and a hole is arranged in the middle of the cover 4 and is communicated with the inside of the inner cylinder 2, for extracting the purified lubricating oil.

[0026] In the preferred technical solution, the sieve hole B6 is attached to the outer circular surface of the filter core A301, and the inner circular surface of the filter core C303 is attached to the outer circular surface of the inner cylinder 2, so as to reduce the cooperation gap of the outer shell 1, the inner cylinder 2 and the filter core structure 3, and improve the stability.

[0027] In specific use, the pump body delivers the gear box oil to the inside of the filter, the filter is provided with a filter core, an oil pump is additionally arranged and connected with the inner cylinder 2 through a pipeline, the un-purified gear oil is sequentially subjected to the preliminary filtration of the outer shell 1, enters the filter core structure 3, is subjected to three-layer filtration, and finally enters the inner cylinder 2 through the through hole of the inner cylinder 2, and the oil pump delivers the purified gear oil to the gear box again, so as to continuously circulate and purify the gear box oil.

[0028] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wind turbine generator set gearbox filter cartridge, characterized by, The utility model provides a filter device, including from inside to outside setting in proper order inner tube (2), filter core structure (3) and outer casing (1), the outer casing (1) is composed of a plurality of outer convex folding type cylinder (101) and a plurality of cylinder (102) interlaced, the lower surface of outer convex folding type cylinder (101) is surrounded and is set up a plurality of sieve hole A (5), the circumferential surface of cylinder (102) is set up a plurality of sieve hole B (6), the circumferential surface of inner tube (2) is set up a plurality of through -hole, filter core structure (3) includes from outside to inside setting in proper order filter core A (301), filter core B (302) and filter core C (303), the top of outer casing (1) is tightly arranged with the cover (4), and the middle part of cover (4) is set up and discharges the hole.

2. A wind turbine gearbox filter cartridge according to claim 1, wherein, The included angle between the upper surface and the lower surface of the outer convex folding type cylinder (101) is 100°-120°.

3. A wind turbine gearbox filter cartridge according to claim 1, wherein, The sieve hole A (5) is vertically set, and the sieve hole B (6) is horizontally set.

4. A wind turbine gearbox filter cartridge according to claim 1, wherein, The filtering precision of the filter core A (301), the filter core B (302) and the filter core C (303) is 50 μm, 40 μm and 30 μm in sequence.

5. A wind turbine gearbox filter cartridge according to claim 1, wherein, The cover (4) includes a top cover (401), a boss (402) concentrically arranged at the bottom of the top cover (401), the boss (402) is inlaid between the outer casing (1) and the inner tube (2), and the bottom end of the boss (402) is attached to the top end of the filter core structure (3).

6. A wind turbine gearbox filter cartridge according to claim 4 wherein, The sieve hole B (6) is attached to the outer circular surface of the filter core A (301), and the inner circular surface of the filter core C (303) is attached to the outer circular surface of the inner tube (2).

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