Over-date gear oil filtering device for gearbox of wind driven generator

Abstract

The utility model discloses a wind driven generator gearbox expired gear oil filtering device which comprises a box body, an oil inlet is formed in the upper end of the interior of the box body, an opening and closing assembly is arranged at the upper end of the exterior of the box body, an oil filtering assembly is arranged in the box body, a slag discharging assembly is arranged in the box body, and a base plate is arranged at the lower end of the exterior of the box body. An oil return pipe is arranged in the chassis, the opening and closing assembly controls opening and closing of the oil inlet, the oil filtering assembly filters gear oil, and the deslagging assembly conducts deslagging cleaning on the oil filtering assembly. Through the arrangement of the floating ball, the opening and closing assembly can be adjusted and controlled through buoyancy generated by accumulation of waste oil, and the oil cover can be driven to be opened or closed by ascending or descending of the opening and closing assembly, so that the opening and closing of the oil cover can be automatically controlled according to the stored waste oil in the box body; therefore, the waste oil is prevented from overflowing.

Description

Technical Field

[0001] The utility model relates to the field of waste oil filtering and processing equipment, in particular to a device for filtering expired gear oil of a wind turbine gear box. Background Art

[0002] The gearbox in a wind turbine is an important mechanical component. Its main function is to transfer the power generated by the wind rotor to the generator and make it get the corresponding speed. Usually, the speed of the wind rotor is very low, far from the speed required by the generator to generate electricity. It must be achieved through the speed increase of the gear pair of the gearbox, so the gearbox is also called a speed increaser.

[0003] In addition to excellent extreme pressure and anti-wear performance, cooling performance and cleaning performance, wind power gear oil also has good thermal oxidation stability, hydrolysis stability, anti-emulsification performance, dry temperature performance, low temperature performance and long service life. At the same time, it has a low friction coefficient to reduce the power loss in the gear transmission, so as to ensure the reliable and stable long-term operation of wind power equipment;

[0004] At present, after the gear oil used in wind farms expires, the gear oil will gradually become polluted, and various impurities such as particulate pollutants, metals and water will be mixed inside. Most gear oils are collected by waste oil purchasing companies, mixed with various waste oils, and recycled. After the waste oil is filtered through the oil filter, the water, metals and large particles in the oil can be effectively removed;

[0005] However, in the process of injecting waste oil into the existing oil filter, it is often impossible to visually observe the amount of waste oil inside the machine. In this way, waste oil overflows accidentally during the oil injection process, resulting in the problem of oil spillage and waste. At the same time, after filtering metal and large particle impurities inside the oil filter, it is impossible to quickly and conveniently clean the metal and large particle impurities. Utility Model Content

[0006] The technical problem to be solved by the utility model is the problem of oil overflow and quick cleaning of impurities.

[0007] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an expired gear oil filtering device for a wind turbine gearbox, comprising a box body, an oil inlet is opened at the upper end of the box body, an opening and closing assembly is arranged at the upper end of the outer side of the box body, an oil filter assembly is arranged inside the box body, a slag discharge assembly is arranged inside the box body, a chassis is arranged at the lower end of the outer side of the box body, an oil return pipe is arranged inside the chassis, the opening and closing assembly controls the opening and closing of the oil inlet, the oil filter assembly filters the gear oil, and the slag discharge assembly discharges and cleans the oil filter assembly.

[0008] Through the above technical scheme, when performing the oil filtering operation, the oil filling operation is performed first, and the opening and closing component can ensure that when the oil reaches a certain amount, the oil inlet is automatically closed to prevent the waste oil from overflowing, and the oil filtering component can effectively filter the waste oil. At the same time, when the oil filtering operation is completed, the impurities accumulated on the surface of the oil seepage plate can be discharged through the slag discharge component, and the impurities outside the permeation tube can be cleaned by opening the bottom plate.

[0009] The utility model is further configured as follows: the opening and closing assembly includes a bracket fixedly arranged in the middle of the upper end of the outer part of the box body, a tilting rod is arranged inside the bracket, a sliding groove is opened inside the tilting rod, the bracket is located inside the sliding groove, a connecting groove is opened inside the end of the tilting rod away from the oil inlet, and a hole is opened at the end of the tilting rod away from the connecting groove.

[0010] Through the above technical solution, the tilting rod can be tilted up and down around the bracket, and the position of the end of the tilting rod can be adjusted by the sliding groove.

[0011] The utility model is further configured such that the opening and closing assembly also includes an oil cap arranged at the outer upper end of the oil inlet, the oil cap is connected to the oil inlet via a hinge, a fixing frame is fixedly arranged at the outer upper end of the oil cap on a side away from the hinge, the fixing frame is connected to the tilting rod, and the fixing frame is located inside the hole.

[0012] Through the above technical solution, the oil cap will be driven to lift up or fall down by the lift rod, thereby controlling the opening or closing of the oil inlet.

[0013] The utility model is further configured such that the opening and closing assembly also includes a rod groove opened at the upper end of the interior of the box body, a lifting rod is arranged inside the rod groove, one end of the lifting rod inside the box body is fixedly connected to a float, the end of the lifting rod away from the float is fixedly provided with a connecting ring, the lifting rod is connected to the tilting rod, the connecting ring is located inside the connecting groove, and an axle rod is fixedly arranged between the connecting ring and the connecting groove.

[0014] Through the above technical solution, the float drives the lifting rod to rise and fall through the buoyancy generated by the oil, and the connecting rod drives the tilting rod connected thereto to rise or fall.

[0015] The utility model is further configured such that the oil filter assembly includes a fixed rod fixedly arranged inside the box body, an oil seepage plate is arranged at the upper end of the outer side of the fixed rod, the oil seepage plate is arranged in a circle around the fixed rod, and a permeation tube is arranged at the lower end of the outer side of the fixed rod.

[0016] Through the above technical solution, the oil seepage plate can initially filter and block large particles of impurities, while the permeation tube can perform secondary filtration on the waste oil.

[0017] The utility model is further configured as follows: the slag discharge assembly includes a rod sleeve rotatably arranged on the outside of a fixed rod, an axis block is fixedly arranged on the outside of the rod sleeve, the axis block is circumferentially arranged around the fixed rod, an embedding groove is opened at the lower end of the oil seepage plate, an axis rod is fixedly arranged inside the embedding groove, the axis rod is located inside the axis block, and the oil seepage plate rotates around the axis rod.

[0018] The utility model is further configured that the slag discharge assembly also includes a hinge fixedly arranged on the outside of the box body, one side of the hinge is fixedly connected to a side door, and the side door is opened and closed by the hinge.

[0019] Through the above technical solution, the oil seepage plate can be rotated around the shaft and the impurities can be cleaned out by opening the side door.

[0020] The utility model is further configured that a pipe ring is fixedly arranged on a surface of one side close to the box body in the middle of the inner part of the chassis, and the pipe ring is located outside the permeation tube.

[0021] Through the above technical solution, all the impurities blocked by the permeation tube are accumulated above the chassis, which is convenient for cleaning.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1. The utility model can adjust and control the opening and closing components through the buoyancy generated by the accumulation of waste oil by setting a floating ball, and the rise or fall of the opening and closing components can drive the oil cover to open or close, so that the opening and closing of the oil cover can be automatically controlled according to the storage of waste oil in the box, thereby preventing the waste oil from overflowing;

[0024] 2. The utility model can quickly clean the impurities accumulated on the surface of the oil seepage plate through the setting of the slag discharge component, and at the same time, the setting of the chassis can conveniently and quickly clean the impurities outside the permeation tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a bottom view schematic diagram of the overall structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the side door opening structure of the utility model;

[0028] Figure 4 It is a schematic diagram of the structure of the utility model when the slag is discharged;

[0029] Figure 5 It is a schematic diagram of the internal structure of the utility model;

[0030] Figure 6 It is a structural schematic diagram of part of the oil filter component and part of the slag discharge component in the utility model;

[0031] Figure 7 This is a schematic diagram of the chassis structure of the utility model.

[0032] In the figure: 100, box body; 101, hinge; 102, side door; 103, oil inlet; 104, oil cover; 105, fixing bracket; 106, rod groove; 200, chassis; 201, pipe ring; 300, oil return pipe; 400, bracket; 401, lifting rod; 402, tilting rod; 403, connecting groove; 404, slide groove; 405, float; 406, connecting ring; 500, penetration tube; 600, fixing rod; 601, rod sleeve; 602, shaft block; 700, oil penetration plate; 701, shaft rod; 702, embedded groove. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] See also Figure 1 - Figure 7 A device for filtering expired gear oil in a wind turbine gearbox comprises a box body 100, an oil inlet 103 is provided at the upper end of the box body 100, an opening and closing assembly is provided at the upper end of the box body 100, an oil filter assembly is provided inside the box body 100, a slag discharge assembly is provided inside the box body 100, a chassis 200 is provided at the lower end of the box body 100, an oil return pipe 300 is provided inside the chassis 200, the opening and closing assembly controls the opening and closing of the oil inlet 103, and the opening and closing assembly is provided through the box body 100. The buoyancy generated by the oil is used to control the rise or fall of the oil cover 104, thereby controlling the opening or closing of the oil inlet 103. The oil filter assembly filters the gear oil, the oil seepage plate 700 performs the first filtration of the waste oil, the permeation tube 500 performs the second filtration of the waste oil, and the slag removal assembly removes slag from the oil filter assembly. The slag removal assembly can make the oil seepage plate 700 rotate around the shaft 701, and the impurities accumulated on the surface of the oil seepage plate 700 can be cleaned by opening the side door 102.

[0035] like Figure 1 - Figure 5As shown, the opening and closing assembly includes a bracket 400 fixedly arranged in the middle of the upper end of the outer part of the box body 100, a tilting rod 402 is arranged inside the bracket 400, a slide groove 404 is opened inside the tilting rod 402, the bracket 400 is located inside the slide groove 404, and a connecting groove 403 is opened inside the tilting rod 402 at the end away from the oil inlet 103, so that the tilting rod 402 is conveniently connected to the lifting rod 401, and a hole is opened at the end of the tilting rod 402 away from the connecting groove 403, so that the tilting rod 402 is conveniently connected to the oil cover 104.

[0036] The opening and closing assembly also includes an oil cap 104 arranged at the upper end of the oil inlet 103. The oil cap 104 is connected to the oil inlet 103 through a hinge 101. A fixing frame 105 is fixedly arranged at the upper end of the oil cap 104 on the side away from the hinge 101. The fixing frame 105 is connected to a tilting rod 402. The fixing frame 105 is located inside the hole. The tilting rod 402 drives the oil cap 104 to rotate around the hinge 101 to open or close through the fixing frame 105.

[0037] The opening and closing assembly also includes a rod groove 106 at the upper end of the box body 100, and a lifting rod 401 is arranged inside the rod groove 106. The lifting rod 401 is fixedly connected to a float 405 at one end inside the box body 100. The waste oil injected into the box body 100 provides buoyancy for the float 405. The lifting rod 401 is fixedly provided with a connecting ring 406 at the end away from the float 405. The lifting rod 401 is connected to the tilting rod 402, and the connecting ring 406 is located inside the connecting groove 403. The connecting ring 406 and the connecting groove 403 are fixedly provided with an axis rod 701. In this way, when the lifting rod 401 is driven by the float 405 to be lifted and lowered, the lifting rod 401 can be rotated around the axis rod 701 inside the tilting rod 402 through the connecting ring 406.

[0038] like Figure 5 As shown, the oil filter assembly includes a fixed rod 600 fixedly arranged inside the box body 100, and an oil seepage plate 700 is arranged at the upper end of the fixed rod 600. The oil seepage plates 700 are arranged in a circle around the fixed rod 600, so that each oil seepage plate 700 can be rotated and lowered individually to clean the impurities accumulated on the surface of the oil seepage plate 700. A permeation tube 500 is arranged at the lower end of the fixed rod 600. The waste oil preliminarily filtered by the oil seepage plate 700 can be secondary filtered through the permeation tube 500 and uniformly collected through the return oil pipe 300.

[0039] like Figure 6As shown, the slag discharge assembly includes a rod sleeve 601 rotatably arranged on the outside of the fixed rod 600, and a shaft block 602 is fixedly arranged on the outside of the rod sleeve 601. The shaft block 602 is arranged in a circle around the fixed rod 600, so that the shaft block 602 can be arranged corresponding to the oil seepage plate 700. A groove 702 is opened at the lower end of the oil seepage plate 700, and a shaft rod 701 is fixedly arranged inside the groove 702. The shaft rod 701 is located inside the shaft block 602, and the oil seepage plate 700 rotates around the shaft rod 701.

[0040] like Figure 1 As shown, the slag discharge assembly also includes a hinge 101 fixedly arranged on the outside of the box body 100, and a side door 102 is fixedly connected to one side of the hinge 101. The side door 102 is opened and closed by the hinge 101. When it is necessary to clean the impurities accumulated on the surface of the oil seepage plate 700, the side door 102 can be opened by the hinge 101, so that the oil seepage plate 700 loses its obstruction and rotates around the shaft 701 under the action of gravity.

[0041] like Figure 5 , Figure 7 As shown, a pipe ring 201 is fixedly provided on the surface of one side close to the box body 100 in the middle of the interior of the chassis 200 , and the pipe ring 201 is located outside the permeation tube 500 , which makes it more convenient to install and fix the chassis 200 .

[0042] Working principle:

[0043] When using the device for oil filtering, the device is first installed, and then under the action of gravity, the float 405 will fall, thereby driving the lifting rod 401 to descend. When the lifting rod 401 descends, it will drive one end of the tilting rod 402 to descend through the connecting ring 406. When the end of the tilting rod 402 connected to the lifting rod 401 descends, the tilting rod 402 will rotate around the bracket 400, and the positions of the two ends of the tilting rod 402 are adjusted through the slide groove 404. At the same time, the end of the tilting rod 402 connected to the oil cover 104 will be tilted and lifted, and the oil cover 104 will be driven to rise and rotate around the hinge 101, so that the oil inlet 103 will be opened, and the staff can inject the waste oil that needs to be filtered into the box body 100.

[0044] When the waste oil inside the box 100 is not filtered in time and accumulates, the float 405 will float above the waste oil. When the waste oil continues to accumulate and exceeds the penetration rate, the float 405 will continue to drive the lifting rod 401 to rise, thereby driving the oil cover 104 to cover through the tilting rod 402, and then the oil inlet 103 is closed. In this way, when the waste oil inside the box 100 accumulates too much, the oil inlet 103 will be automatically closed, thereby ensuring that the waste oil will not accumulate too much and overflow;

[0045] After the waste oil is injected into the box 100, it will first be blocked by the oil seepage plate 700. The large particles of impurities in the waste oil will be blocked by the oil seepage plate 700. The waste oil that has been initially filtered will pass through the oil seepage plate 700 and fall on the top of the bottom plate 200, and will be located between the outside of the permeation tube 500 and the inside of the box 100. Then, the waste oil that has been initially filtered will be secondary filtered through the permeation tube 500. The waste oil that has been secondary filtered can be uniformly collected through the oil return pipe 300, and the impurities blocked by the permeation tube 500 will accumulate on the top of the bottom plate 200.

[0046] When it is necessary to clean the device, first drain all the waste oil inside the device, then open the side door 102 and rotate it around the hinge 101, so that the inside of the box body 100 is exposed, and at the same time the oil seepage plate 700 loses its obstruction, and under the action of gravity, the oil seepage plate 700 will rotate around the shaft 701, so that the staff can clean the impurities accumulated on the surface of the oil seepage plate 700. When a certain oil seepage plate 700 is cleaned, the staff can lift the oil seepage plate 700 and rotate it upward around the shaft 701, so that the oil seepage plate 700 is reset, and then the oil seepage plate 700 is rotated around the fixed rod 600, so that the next oil seepage plate 700 can be cleaned, and all the oil seepage plates 700 can be cleaned by repeating this process. When the oil seepage plate 700 is cleaned, the side door 102 is turned back to the inside of the box body 100, thereby blocking the oil seepage plate 700.

[0047] Afterwards, the bottom plate 200 is separated from the box body 100, so that the impurities blocked by the permeation tube 500 and accumulated on the surface of the bottom plate 200 can be cleaned, thus completing the cleaning work of the device.

[0048] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for filtering expired gear oil in a wind turbine gearbox, comprising a housing (100), Features: An oil inlet (103) is provided at the upper end of the box body (100), an opening and closing assembly is provided at the upper end of the box body (100), an oil filter assembly is provided inside the box body (100), a slag discharge assembly is provided inside the box body (100), a chassis (200) is provided at the lower end of the box body (100), an oil return pipe (300) is provided inside the chassis (200), the opening and closing assembly controls the opening and closing of the oil inlet (103), the oil filter assembly filters the gear oil, and the slag discharge assembly discharges slag from the oil filter assembly.

2. A wind turbine gearbox expired gear oil filtering device according to claim 1, Features: The opening and closing assembly comprises a bracket (400) fixedly arranged at the middle of the upper end of the outer portion of the box body (100); a tilting rod (402) is arranged inside the bracket (400); a slide groove (404) is provided inside the tilting rod (402); the bracket (400) is located inside the slide groove (404); a connecting groove (403) is provided inside the tilting rod (402) at one end away from the oil inlet (103); and a hole is provided at one end of the tilting rod (402) away from the connecting groove (403).

3. A wind turbine gearbox expired gear oil filtering device according to claim 2, Features: The opening and closing assembly further comprises an oil cover (104) arranged at the upper end of the outer portion of the oil inlet (103); the oil cover (104) is connected to the oil inlet (103) via a hinge (101); a fixing frame (105) is fixedly arranged at the upper end of the outer portion of the oil cover (104) on a side away from the hinge (101); the fixing frame (105) is connected to the tilting rod (402); and the fixing frame (105) is located inside the hole.

4. A wind turbine gearbox expired gear oil filtering device according to claim 3, Features: The opening and closing assembly further comprises a rod groove (106) formed at the upper end of the box body (100), a lifting rod (401) being arranged inside the rod groove (106), one end of the lifting rod (401) being fixedly connected to a floating ball (405) inside the box body (100), a connecting ring (406) being fixedly arranged at the end of the lifting rod (401) away from the floating ball (405), the lifting rod (401) being connected to the tilting rod (402), the connecting ring (406) being located inside the connecting groove (403), and a shaft (701) being fixedly arranged inside the connecting ring (406) and the connecting groove (403).

5. The device for filtering expired gear oil of a wind turbine gearbox according to claim 1, Features: The oil filter assembly comprises a fixed rod (600) fixedly arranged inside the box (100); an oil seepage plate (700) is arranged at the upper end of the exterior of the fixed rod (600); the oil seepage plate (700) is arranged in a circle around the fixed rod (600); and a permeation tube (500) is arranged at the lower end of the exterior of the fixed rod (600).

6. A wind turbine gearbox expired gear oil filtering device according to claim 5, Features: The slag discharge assembly comprises a rod sleeve (601) rotatably arranged outside the fixed rod (600); a shaft block (602) is fixedly arranged outside the rod sleeve (601); the shaft block (602) is arranged in a circle around the fixed rod (600); a groove (702) is provided at the lower end of the inside of the oil seepage plate (700); a shaft rod (701) is fixedly arranged inside the groove (702); the shaft rod (701) is located inside the shaft block (602); and the oil seepage plate (700) rotates around the shaft rod (701).

7. A wind turbine gearbox expired gear oil filtering device according to claim 5, Features: The slag discharge assembly further comprises a hinge (101) fixedly arranged outside the box body (100), one side of the hinge (101) being fixedly connected to a side door (102), and the side door (102) is opened and closed by means of the hinge (101).

8. The device for filtering expired gear oil of a wind turbine gearbox according to claim 1, Features: A pipe ring (201) is fixedly arranged on a surface of one side close to the box body (100) in the middle of the interior of the bottom plate (200), and the pipe ring (201) is located outside the permeation tube (500).

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