Bearing roller polishing device for offshore wind power gear box

Abstract

The bearing roller polishing device for the offshore wind power gear box comprises a cover body, a negative pressure plate, a collecting box, a polishing head and a lifting device, the cover body is provided with a cavity, the negative pressure plate is fixed to the bottom in the cavity, a plurality of first negative pressure holes are formed in the negative pressure plate, and the first negative pressure holes are connected with a suction cup used for fixing a bearing roller; a plurality of second negative pressure holes used for adsorbing scraps are formed in the periphery of each first negative pressure hole. The collecting box is connected with the first negative pressure hole and the second negative pressure hole through a negative pressure channel, and the negative pressure channel is connected with a vacuum pump. The polishing head is provided with a polishing groove, an opening of the polishing groove is vertically downward, and the upper end of the polishing head is connected with a rotary driving device; the lifting device is connected between the rotary driving device and the top end of the cavity and drives the grinding head to move in the direction close to or away from the bearing roller. According to the grinding device, the full conical surface of the tapered roller can be ground, the tapered roller cannot move in the grinding process, and chippings generated in the grinding process can be conveniently cleaned and collected.

Description

Technical Field

[0001] This invention relates to the field of offshore wind power technology, and in particular to a bearing roller grinding device for offshore wind turbine gearboxes. Background Technology

[0002] After rough machining, bearing rollers require further grinding for finishing. Tapered rollers are commonly used in offshore wind turbine gearboxes. Currently, the common method for grinding tapered rollers involves clamping the two end faces of the roller with a jig and then using a movable grinding head to grind the tapered surface bit by bit. Since grinding can only be done on a specific area, grinding the entire tapered surface requires constant movement of the grinding head, reducing efficiency. Furthermore, the grinding head's force must be strictly controlled; even slightly excessive force can cause the tapered roller to detach from the jig. Additionally, the grinding process generates a large amount of flying debris, which is inconvenient to clean and collect. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art. To this end, the present invention provides a bearing roller grinding device for offshore wind turbine gearboxes, which can grind the entire conical surface of tapered rollers. The tapered rollers do not move during the grinding process, which facilitates the cleaning and collection of debris generated during the grinding process.

[0004] This invention provides a bearing roller grinding device for offshore wind turbine gearboxes, comprising: a cover, a negative pressure plate, a collection box, a grinding head, and a lifting device. The cover has a cavity with an openable door on one side. The negative pressure plate is fixed to the bottom of the cavity and has multiple first negative pressure holes connected to suction cups for fixing the bearing rollers. Multiple second negative pressure holes for adsorbing debris are arranged around each first negative pressure hole. The collection box is located below the outside of the cover and connects the first and second negative pressure holes via a negative pressure channel, which is connected to a vacuum pump. The grinding head has a grinding groove that matches the shape of the bearing roller, narrow at the top and wide at the bottom, with the opening of the groove facing vertically downwards. A rotary drive device is connected to the upper end of the grinding head, driving the grinding head to rotate relative to the bearing roller. The lifting device is connected between the rotary drive device and the top of the cavity, moving the grinding head closer to or away from the bearing roller.

[0005] This invention features a vertically movable grinding head that allows the tapered roller to be inserted into a grinding groove for grinding the entire conical surface and the upper end face. The grinding head only needs to move once to complete the grinding process, eliminating the need for multiple repositioning of the grinding head and improving grinding efficiency. The invention also incorporates a grinding groove and a suction cup to prevent the tapered roller from shifting during grinding. Furthermore, the invention includes a negative pressure plate and a collection box to facilitate the cleaning and collection of debris generated during grinding. The bearing rollers produced using this invention meet the installation requirements of offshore wind turbine generators.

[0006] In some embodiments, the grinding head includes an outer sleeve and an inner sleeve. The outer sleeve has a downward-opening grinding cavity, and its upper end is fixedly connected to the output end of a rotary drive device. The inner sleeve is detachably connected to the grinding cavity, and a grinding groove is provided on the inner sleeve. A suitable inner sleeve can be replaced according to the shape or size of the bearing roller to be ground.

[0007] In some embodiments, the outer sleeve and the inner sleeve are fixedly connected by bolts.

[0008] In some embodiments, the inner sleeve has at least two threaded grooves on its sidewalls, and the outer sleeve has threaded holes that mate with the threaded grooves on its sidewalls. After the bolt passes through the threaded holes of the outer sleeve, it is fixedly connected to the threaded grooves of the inner sleeve.

[0009] In some embodiments, multiple grinding heads are provided, and the rotation drive devices of the multiple grinding heads are jointly and fixedly connected to the connecting plate. The output end of the lifting device is fixedly connected to the upper end of the connecting plate, and the number of first negative pressure holes is equal to the number of grinding heads. Multiple bearing rollers can be ground simultaneously, improving work efficiency. Attached Figure Description

[0010] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings.

[0011] in:

[0012] Figure 1 This is a schematic diagram of the bearing roller grinding device for offshore wind turbine gearbox in an embodiment of the present invention.

[0013] Figure 2 yes Figure 1 Top view when the negative pressure plate is circular;

[0014] Figure 3 yes Figure 1 Top view when the negative pressure plate is rectangular;

[0015] Figure 4 This is a schematic diagram of the bearing roller grinding device for offshore wind turbine gearbox in the grinding state according to an embodiment of the present invention.

[0016] Figure label:

[0017] 1-Cover; 2-Lifting device; 3-Connecting plate; 4-Rotation drive device; 5-Outer shell; 6-Bolt; 7-Inner shell; 8-Grinding groove; 9-Bearing roller; 10-Negative pressure plate; 11-Suction cup; 12-Second negative pressure hole; 13-First negative pressure hole; 14-Vacuum pump; 15-Negative pressure channel; 16-Collection box. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] The automatic coolant replenishment device for wind turbine generators according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0020] like Figure 1-4 As shown in the figure, this invention proposes a bearing roller grinding device for offshore wind turbine gearboxes, comprising: a cover 1, a negative pressure plate 10, a collection box 16, a grinding head, and a lifting device 2. The cover 1 has a cavity, and one side of the cavity is provided with an openable door. The negative pressure plate 10 is fixed to the bottom of the cavity, and a plurality of first negative pressure holes 13 are provided on the negative pressure plate 10. The first negative pressure holes 13 are connected to suction cups 11 for fixing bearing rollers 9. A plurality of second negative pressure holes 12 for adsorbing debris are provided around each first negative pressure hole 13. The collection box 16 is located on the cover. Below the outside, the collection box 16 is connected to the first negative pressure hole 13 and the second negative pressure hole 12 through the negative pressure channel 15. The vacuum pump 14 is connected to the negative pressure channel 15. The grinding head has a grinding groove 8 that is narrow at the top and wide at the bottom, which matches the shape of the bearing roller 9. The opening of the grinding groove 8 is vertically downward. The upper end of the grinding head is connected to the rotary drive device 4, which drives the grinding head to rotate relative to the bearing roller 9. The lifting device 2 is connected between the rotary drive device 4 and the top of the cavity. The lifting device 2 drives the grinding head to move in a direction closer to or away from the bearing roller 9.

[0021] This invention features a vertically movable grinding head, allowing the tapered roller to extend into the grinding groove 8 for grinding the entire conical surface and upper end face. The grinding head only needs to move once to complete the grinding process, eliminating the need for multiple repositioning of the grinding head and improving grinding efficiency. The grinding groove 8 and suction cup 11 prevent the tapered roller from moving during grinding. The negative pressure plate 10 and collection box 16 facilitate the cleaning and collection of debris generated during grinding.

[0022] Furthermore, the door and the cover 1 can be connected by hinge or plug. By opening the door, the thicker end face of the bearing roller 9 is placed on the suction cup 11, and the negative pressure provided by the vacuum pump 14 is used to hold the bearing roller 9 in place.

[0023] Furthermore, the suction cup 11 is connected to the first negative pressure hole 13 by a thread. The suction cup 11 is made of rubber and the upper end face of the suction cup 11 is flat, which can hold the bearing roller 9. The bottom of the suction cup 11 is connected to a threaded part made of metal, and the first negative pressure hole 13 is provided with threads.

[0024] Furthermore, the tapered roller has a cone shape that is narrower at the top and wider at the bottom, and the grinding groove 8 is a tapered groove that is narrower at the top and wider at the bottom, which matches the shape of the tapered roller.

[0025] In some alternative embodiments, when the bearing roller 9 is a cylindrical roller, the grinding groove 8 is cylindrical in shape to match the shape of the cylindrical roller.

[0026] Furthermore, the rotary drive device 4 is an electric motor.

[0027] Furthermore, the lifting device 2 is a hydraulic cylinder. The cylinder body of the hydraulic cylinder is fixed to the top inside the cover 1. The hydraulic rod of the hydraulic cylinder extends vertically downward. The lower end of the hydraulic rod is connected to a motor. The extension and retraction of the hydraulic rod drives the motor and the grinding head to rise and fall.

[0028] Furthermore, the negative pressure plate 10 can be circular or rectangular, such as... Figure 2-3 As shown.

[0029] In some embodiments, the grinding head includes an outer sleeve 5 and an inner sleeve 7. The outer sleeve 5 has a downward-opening grinding cavity, and the upper end of the outer sleeve 5 is fixedly connected to the output end of the rotary drive device 4. The inner sleeve 7 is detachably connected to the grinding cavity, and a grinding groove 8 is provided on the inner sleeve 7. The inner sleeve 7 can be replaced with a suitable one according to the shape or size of the bearing roller 9 to be ground.

[0030] In some embodiments, the outer sleeve 5 and the inner sleeve 7 are fixedly connected by bolts 6.

[0031] Optionally, the outer shell 5 and the inner shell 7 can also be connected by a snap fastener.

[0032] In some embodiments, the inner sleeve 7 has at least two threaded grooves on its sidewalls, and the outer sleeve 5 has threaded holes that mate with the threaded grooves on its sidewalls. The bolt 6 passes through the threaded holes of the outer sleeve 5 and is fixedly connected to the threaded grooves of the inner sleeve 7.

[0033] Furthermore, there are two threaded grooves, which are located at opposite positions on the side wall of the inner sleeve 7.

[0034] Optionally, the threaded groove can also be provided on the upper end face of the inner sleeve 7, and the screw hole can be provided on the upper end face of the outer sleeve 5, and the position is the same as that of the threaded groove. The bolt 6 fixes the inner sleeve 7 and the outer sleeve 5 from above.

[0035] In some embodiments, multiple grinding heads are provided, and the rotation drive devices 4 of the multiple grinding heads are fixedly connected to the connecting plate 3. The output end of the lifting device 2 is fixedly connected to the upper end of the connecting plate 3, and the number of first negative pressure holes 13 is equal to the number of grinding heads. Multiple bearing rollers 9 can be ground simultaneously, improving work efficiency.

[0036] Furthermore, the lower end face of the hydraulic rod of the hydraulic cylinder is fixed to the upper end of the connecting plate 3, and the lower end face of the connecting plate 3 is fixedly connected to the upper end face of the motor.

[0037] Furthermore, the connecting plate 3 can be circular or rectangular.

[0038] It should be noted that the bearing roller 9 mentioned in this embodiment is a tapered roller.

[0039] In use, turn on the vacuum pump 14 and place the bearing rollers 9 one by one on the suction cup 11 for adsorption and fixation. This can be done manually or automatically. After placement, close the door and drive the lifting device 2 to lower the grinding head until the bearing rollers 9 are fully inserted into the grinding groove 8 of the grinding head. Then, drive the rotary drive device 4 to make the grinding head rotate at high speed to grind the conical surface and top surface of the bearing rollers 9. Alternatively, you can first drive the rotary drive device 4 to rotate the grinding head, and then drive the lifting device 2 to lower the grinding head. The grinding debris is adsorbed into the collection box 16 through the second negative pressure hole 12. After grinding and adsorption are completed, turn off the vacuum pump 14, open the door, and remove the bearing rollers 9. If it is necessary to grind the lower end face (the coarser end face) of the bearing rollers 9, the inner sleeve 7 can be replaced with a cylindrical inner sleeve 7 to grind the coarser end face of the bearing rollers 9.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this invention, the term "some embodiments," etc., refers to specific features, structures, materials, or characteristics described in connection with that embodiment, which are included in at least one embodiment of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiments. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments. Moreover, those skilled in the art can combine and integrate the different embodiments described in this specification and the features of the different embodiments without contradiction.

[0045] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A bearing roller grinding device for offshore wind turbine gearboxes, characterized in that, include: A cover having a cavity, with an openable door on one side of the cavity; A negative pressure plate is fixed to the bottom of the cavity. The negative pressure plate has multiple first negative pressure holes. The first negative pressure holes are connected to suction cups for fixing bearing rollers. Multiple second negative pressure holes for adsorbing debris are provided around each first negative pressure hole. A collection box is located below the outside of the cover. The collection box is connected to the first negative pressure hole and the second negative pressure hole through a negative pressure channel. A vacuum pump is connected to the negative pressure channel. A grinding head having a grinding groove that is narrower at the top and wider at the bottom and matches the shape of the bearing roller, the opening of the grinding groove facing vertically downwards, and the upper end of the grinding head being connected to a rotary drive device, which drives the grinding head to rotate relative to the bearing roller. A lifting device is connected between the rotary drive device and the top of the cavity, and the lifting device drives the grinding head to move towards or away from the bearing roller.

2. The bearing roller grinding device for offshore wind turbine gearboxes according to claim 1, characterized in that, The grinding head includes an outer sleeve and an inner sleeve. The outer sleeve has a downward-opening grinding cavity. The upper end of the outer sleeve is fixedly connected to the output end of the rotary drive device. The inner sleeve is detachably connected to the grinding cavity. The grinding groove is provided on the inner sleeve.

3. The bearing roller grinding device for offshore wind turbine gearboxes according to claim 2, characterized in that, The outer sleeve and the inner sleeve are fixedly connected by bolts.

4. The bearing roller grinding device for offshore wind turbine gearboxes according to claim 3, characterized in that, The inner sleeve has at least two threaded grooves on its side wall, and the outer sleeve has a threaded hole that mates with the threaded grooves on its side wall. The bolt passes through the threaded hole of the outer sleeve and is fixedly connected to the threaded groove of the inner sleeve.

5. The bearing roller grinding device for offshore wind turbine gearboxes according to any one of claims 1-4, characterized in that, The grinding head is provided in multiple ways, and the rotation drive device of the multiple grinding heads is fixedly connected to the connecting plate. The output end of the lifting device is fixedly connected to the upper end of the connecting plate. The number of the first negative pressure holes is equal to the number of the grinding heads.

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