Wind power gear box with built-in circulating lubrication pipeline system

Abstract

The utility model discloses a wind power gear box with a built-in circulating lubrication pipeline system, which comprises a gear box and a generator arranged at the rear end of the gear box, a protection box is fixed at the right end of the gear box, a circulating lubrication pipeline is arranged in the protection box, and the circulating lubrication pipeline comprises an oil inlet assembly, a filter element, a pump machine and an oil return assembly. The pump is fixedly mounted in the protection box; the upper part of the pump is communicated with the lower part of the filter element. According to the wind power gear box with the built-in circulating lubrication pipeline system, the circulating lubrication pipeline is arranged and comprises the oil inlet assembly, the filter element, the pump machine and the oil return assembly, lubricating oil can be manually added into the gear box through the oil inlet assembly, and then redundant lubricating oil can drop downwards to the oil return assembly to flow back; and then the lubricating oil is pumped into the filter element by the pump machine to filter impurities, and the filtered lubricating oil enters the gear box along the oil inlet assembly again, so that circulating lubrication is realized, the number of times of manually adding the lubricating oil is reduced, and related workers are more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind power gear box, concretely is a wind power gear box with built-in circulating lubrication pipeline system. BACKGROUND

[0002] The wind driven generator is the mechanical work that will convert wind energy, mechanical work drives rotor rotation, and ultimately outputs alternating current electric power equipment, and the wind driven generator generally has wind wheel, generator, wind power gear box, direction regulator, tower, speed limiting safety mechanism and energy storage device and so on.

[0003] Nowadays, the wind power gear box needs to add lubricating oil regularly after a period of use, which can effectively prevent mutual friction between gear parts, reduce wear and tear, thereby prolonging the service life of the wind power gear box, but the used lubricating oil will have impurities, so it needs to be replaced, but manual regular addition is needed every time, which causes inconvenience to relevant staff. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of prior art, providing a wind power gear box with built-in circulating lubrication pipeline system to solve the problems in the above background.

[0005] A wind power gear box with built-in circulating lubrication pipeline system, comprising a gear box and a generator installed at the rear end thereof, a protective box is fixed to the right end of the gear box, a circulating lubrication pipeline is installed inside the protective box, the circulating lubrication pipeline comprises an oil inlet assembly, a filter element, a pump and an oil return assembly, the pump is fixedly installed inside the protective box, the upper part of the pump is in communication with the lower part of the filter element, the upper part of the filter element is in communication with the first end of the oil inlet assembly, the tail end of the oil inlet assembly penetrates through the protective box and is in communication with the upper part of the gear box, the lower part of the pump is in communication with the tail end of the oil return assembly, and the first end of the oil return assembly penetrates through the protective box and is in communication with the lower part of the gear box.

[0006] Preferably, the oil inlet assembly comprises an oil inlet pipe, an oil injection pipe, an oil delivery pipe, a shunt pipe and an oil drip nozzle, the first end of the oil delivery pipe is connected with the upper part of the filter element, the tail end of the oil delivery pipe penetrates through the protective box and is connected with the side surface of the oil inlet pipe, the lower part of the oil inlet pipe penetrates through and is fixed to the upper end of the gear box, the shunt pipe is connected to the lower end of the oil inlet pipe, and the oil drip nozzle has a plurality of and is uniformly connected to the lower end of the shunt pipe.

[0007] Preferably, the oil injection pipe is connected to the upper end of the oil inlet pipe, a spring is connected to the inner lower end of the oil injection pipe, and a plugging bead is connected to the upper part of the spring.

[0008] Preferably, a discharge pipe is connected to the upper part of the pump, the discharge pipe is connected with the lower part of the filter element, and an extraction pipe is connected to the lower part of the pump.

[0009] Preferably, the oil return assembly comprises an oil return pipe, an oil discharge pipe and an oil receiving bucket, the oil return pipe is connected with the lower end of the suction pipe, the lower end of the oil discharge pipe is connected with the upper end of the oil return pipe, and the upper end of the oil discharge pipe penetrates into the gear box and is connected with the oil receiving bucket.

[0010] Preferably, the right end of the protection box is provided with an inspection window, and the box cover covering the inspection window is screw-connected to the right end of the protection box.

[0011] Beneficial effects: the wind power gear box with the built-in circulating lubrication pipeline system can realize circulating lubrication, reduce the frequency of manual lubricating oil addition, and is more convenient for relevant staff, through the setting of the circulating lubrication pipeline, the circulating lubrication pipeline comprises an oil inlet assembly, a filter element, a pump and an oil return assembly, the lubricating oil can be manually added to the gear box through the oil inlet assembly, then the excess lubricating oil will drip downward to the oil return assembly, and then is pumped into the filter element for filtering impurities, and the filtered lubricating oil reenters the gear box along the oil inlet assembly. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a whole schematic view of the utility model;

[0013] Fig. 2 It is a circulating lubrication pipeline schematic view of the utility model;

[0014] Fig. 3 It is an oil injection pipe section schematic view of the utility model.

[0015] In the figure: 1-gear box, 2-generator, 3-oil inlet pipe, 4-oil injection pipe, 5-oil delivery pipe, 6-protection box, 7-box cover, 8-oil return pipe, 9-oil discharge pipe, 10-shunt pipe, 11-oil drip nozzle, 12-oil receiving bucket, 13-filter element, 14-pump, 15-suction pipe, 16-discharge pipe, 17-plugging bead, 18-spring. DETAILED DESCRIPTION

[0016] Please refer to Figs. 1-3The utility model provides a wind power gear box with built-in circulating lubrication pipeline system, which comprises a gear box 1 and a generator 2 installed at the rear end of the gear box 1, a protective box 6 fixed at the right end of the gear box 1, a circulating lubrication pipeline installed in the protective box 6, the circulating lubrication pipeline comprising an oil inlet assembly, a filter element 13, a pump 14 and an oil return assembly, the pump 14 being fixedly installed in the protective box 6, the upper part of the pump 14 being in communication with the lower part of the filter element 13, the upper part of the filter element 13 being in communication with the front end of the oil inlet assembly, the tail end of the oil inlet assembly penetrating through the protective box 6 and being in communication with the upper part of the gear box 1, the oil inlet assembly comprising an oil inlet pipe 3, an oil injection pipe 4, an oil delivery pipe 5, a shunt pipe 10 and oil dripping nozzles 11, the front end of the oil delivery pipe 5 being connected with the upper part of the filter element 13, the tail end of the oil delivery pipe 5 penetrating through the protective box 6 and being connected with the side of the oil inlet pipe 3, the lower part of the oil inlet pipe 3 penetrating through and being fixed at the upper end of the gear box 1, the shunt pipe 10 being connected at the lower end of the oil inlet pipe 3, the oil dripping nozzles 11 being a plurality of and being uniformly connected at the lower end of the shunt pipe 10, and the lubricating oil filtered by the filter element 13 can flow from the oil delivery pipe 5 into the oil inlet pipe 3 and then be shunted from the shunt pipe 10 to the oil dripping nozzles 11, so that the lubricating oil is dripped on the gears in the gear box 1 by the oil dripping nozzles 11.

[0017] The oil injection pipe 4 is connected at the upper end of the oil inlet pipe 3, the inside lower end of the oil injection pipe 4 is connected with a spring 18, the upper part of the spring 18 is connected with a blocking bead 17, when the staff manually adds lubricating oil, only need to plug the oil pipe with the oil injection pipe 4, then inject lubricating oil, the lubricating oil first pushes away the blocking bead 17, so that the blocking bead 17 extrudes the spring 18, then the lubricating oil can be input from the oil injection pipe 4 to the shunt pipe 10 along the oil inlet pipe 3.

[0018] The lower part of the pump 14 is in communication with the tail end of the oil return assembly, the upper part of the pump 14 is connected with a discharge pipe 16, the discharge pipe 16 is connected with the lower part of the filter element 13, the lower part of the pump 14 is connected with a suction pipe 15, the front end of the oil return assembly penetrates through the protective box 6 and is in communication with the lower part of the gear box 1, the oil return assembly comprising an oil return pipe 8, an oil discharge pipe 9 and an oil receiving hopper 12, the tail end of the oil return pipe 8 is connected with the lower end of the suction pipe 15, the lower end of the oil discharge pipe 9 is connected with the front end of the oil return pipe 8, the upper end of the oil discharge pipe 9 penetrates into the gear box 1 and is connected with the oil receiving hopper 12, the excess lubricating oil can drop in the oil receiving hopper 12 and then enter the oil return pipe 8 along the oil discharge pipe 9, so that the lubricating oil in the oil return pipe 8 can be sucked into the filter element 13 by the pump 14 through the suction pipe 15 and the discharge pipe 16, and then the impurities in the lubricating oil are filtered in the filter element 13, and then the lubricating oil enters the oil delivery pipe 5.

[0019] The right end of the protective box 6 is provided with an inspection window, the right end of the protective box 6 is screw-connected with a box cover 7 covering the inspection window, by unscrewing the screw and removing the box cover 7, the pump 14 in the protective box 6 can be conveniently maintained or the filter element 13 can be conveniently replaced through the inspection window, and the filter element 13, the discharge pipe 16 and the oil delivery pipe 5 are all connected through flanges.

[0020] Working principle: when the staff manually adds lubricating oil, only need to plug the oil pipe with the oil injection pipe 4, then inject lubricating oil, the lubricating oil first pushes away the blocking bead 17, makes the blocking bead 17 extrude the spring 18, then the lubricating oil can be inputted into the oil distribution pipe 10 along the oil inlet pipe 3 from the oil injection pipe 4, then again shunts from the oil distribution pipe 10 to the oil dripping nozzle 11, so as to drip the lubricating oil on the gear inside the gear box 1 by the oil dripping nozzle 11, the excess lubricating oil can be dropped in the oil receiving hopper 12, then along the oil discharge pipe 9 enters the oil return pipe 8, so as to pass through the pump 14, the suction pipe 15 can suck the lubricating oil in the oil return pipe 8, then from the discharge pipe 16 into the filter element 13 inside to filter impurities, after filtering the impurities, then enters the oil conveying pipe 5, then flows into the oil inlet pipe 3, then again shunts from the oil distribution pipe 10 to the oil dripping nozzle 11, so as to realize the circulating lubrication, reduce the frequency of manual addition of lubricating oil, more convenient for the relevant staff.

[0021] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, within the knowledge range of the person skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A wind turbine gearbox with built-in circulating lubrication pipeline system, comprising a gearbox (1) and a generator (2) mounted at the rear end of the gearbox (1), characterized in that: the right end of the gearbox (1) is fixed with a protection box (6), a circulating lubrication pipeline is mounted inside the protection box (6), the circulating lubrication pipeline comprises an oil inlet assembly, a filter element (13), a pump (14) and an oil return assembly, the pump (14) is fixedly installed inside the protection box (6), the upper part of the pump (14) is in communication with the lower part of the filter element (13), the upper part of the filter element (13) is in communication with the first end of the oil inlet assembly, the tail end of the oil inlet assembly penetrates through the protection box (6) and is in communication with the upper part of the gearbox (1), the lower part of the pump (14) is in communication with the tail end of the oil return assembly, and the first end of the oil return assembly penetrates through the protection box (6) and is in communication with the lower part of the gearbox (1).

2. A wind turbine gearbox with built-in circulating lubrication piping system according to claim 1, characterized in that: the oil inlet assembly comprises an oil inlet pipe (3), an oil injection pipe (4), an oil delivery pipe (5), a shunt pipe (10) and a drip nozzle (11), the first end of the oil delivery pipe (5) is connected with the upper part of the filter element (13), the tail end of the oil delivery pipe (5) penetrates through the protection box (6) and is connected with the side of the oil inlet pipe (3), the lower part of the oil inlet pipe (3) penetrates through and is fixed at the upper end of the gearbox (1), the shunt pipe (10) is connected at the lower end of the oil inlet pipe (3), and the drip nozzle (11) is multiple and uniformly connected at the lower end of the shunt pipe (10).

3. A wind turbine gearbox with a built-in circulating lubrication piping system according to claim 2, characterized in that: the oil injection pipe (4) is connected at the upper end of the oil inlet pipe (3), a spring (18) is connected at the lower end inside the oil injection pipe (4), and a blocking bead (17) is connected at the upper part of the spring (18).

4. A wind turbine gearbox with a built-in circulating lubrication pipeline system according to claim 2, characterized in that: a discharge pipe (16) is connected at the upper part of the pump (14), the discharge pipe (16) is connected with the lower part of the filter element (13), and a suction pipe (15) is connected at the lower part of the pump (14).

5. A wind turbine gearbox with a built-in circulating lubrication line system according to claim 4, characterized in that: the oil return assembly comprises an oil return pipe (8), an oil discharge pipe (9) and an oil receiving hopper (12), the tail end of the oil return pipe (8) is connected with the lower end of the suction pipe (15), the lower end of the oil discharge pipe (9) is connected with the first end of the oil return pipe (8), and the upper end of the oil discharge pipe (9) penetrates into the inside of the gearbox (1) and is connected with the oil receiving hopper (12).

6. A wind turbine gearbox with built-in circulating lubrication piping system as claimed in claim 1, characterized in that: a maintenance window is arranged at the right end of the protection box (6), and a box cover (7) covering the maintenance window is screw-connected at the right end of the protection box (6).

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