Lubricating structure of lifting system of wind power installation platform for lifting reduction gearbox

Abstract

The utility model relates to a kind of lubricating structure of wind power installation platform lifting system lifting reduction gearbox, including first oil groove, second oil groove and third oil groove, first oil groove is installed on the outside wall of inner ring gear, and first oil groove and inner ring gear tooth root are communicated on inner ring gear and are opened with first oil circuit;Second oil groove is installed on the outside wall of planet carrier, and second oil groove and first bearing are communicated with second oil circuit, which are opened with the cooperation of planet carrier and planetary gear shaft;Third oil groove is installed on gear end face, and third oil groove is installed with a oil pipe line, the oil inlet of oil pipe line is connected with third oil groove and is communicated, and the oil outlet of oil pipe line extends to second bearing;The utility model increases oil groove on inner ring gear, planet carrier and gear respectively, by the operation of gear and planetary assembly, using oil groove to guide the lubricating oil in frame into each oil groove, then lubricate sun gear, inner ring gear, planetary gear, first bearing and second bearing through oil circuit and pipeline, so that it is fully lubricated.

Description

Technical Field

[0001] This utility model relates to the field of wind power installation platform technology, and in particular to a lubrication structure for lifting the gearbox of a wind power installation platform lifting system. Background Technology

[0002] The lifting reduction gearbox of the wind power installation platform lifting system uses a motor to drive two climbing gears. The two climbing gears are arranged vertically, and the planetary components connected to the lower climbing gear are placed in the lifting system frame. Since the climbing gear bearing housing seal is a static seal, the seal will age over time, which may lead to oil leakage. According to environmental protection requirements, lubricating oil leakage is not allowed, and the oil level must be kept below the inner hole of the bearing housing. The oil level of the planetary components is low, so the sun gear, internal gear ring, planet gears, the bearings in the planet gears and the planet carrier support bearings cannot be adequately lubricated.

[0003] Therefore, this utility model proposes a lubrication structure for lifting the gearbox of a wind power installation platform lifting system to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lubrication structure for the lifting gearbox of a wind power installation platform lifting system, and to improve the lubrication effect of the planetary components inside the lifting gearbox.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: a lubrication structure for a lifting gearbox of a wind power installation platform lifting system. The gearbox includes a frame, gears, and a planetary assembly. The planetary assembly includes a sun gear, planet gears, planet gear shafts, an internal gear ring, and a planet carrier. One end of the sun gear is mounted on the frame via a bearing seat, and the other end is connected to the gear. The planet carrier is supported on the outside of the sun gear by a second bearing. The planet gear shaft is mounted on the planet carrier. The planet gears are mounted on the outside of the planet gear shaft via two parallel first bearings. The internal gear ring is mounted on the outside of the planet gears. The two sides of the planet gears are respectively meshed with the sun gear and the internal gear ring. The innovation lies in: the lubrication structure includes... The first oil groove is installed on the outer side wall of the internal gear ring, and the internal gear ring has a first oil passage connecting the first oil groove and the root of the internal gear ring teeth. The second oil groove is installed on the outer wall of the planet carrier, and a second oil passage connecting the second oil groove and the first bearing is opened on the planet carrier and the planet gear shaft. The third oil groove is installed on the end face of the gear. An oil guide pipe is installed on the third oil groove. The oil inlet of the oil guide pipe is connected to and communicates with the third oil groove. The oil outlet of the oil guide pipe extends to the second bearing.

[0006] Furthermore, the second oil passage includes a first radial oil passage, an axial oil passage, and a second radial oil passage. The first radial oil passage and the axial oil passage are both opened inside the planetary gear shaft. The first radial oil passage and the axial oil passage are interconnected. The two ends of the first radial oil passage extend in opposite directions to the opposite positions on both sides of the sidewall of the planetary gear shaft and are located between the two first bearings. The second radial oil passage is opened inside the planet carrier. One end of the second radial oil passage extends to the second oil groove and communicates with the second oil groove, and the other end extends into the planetary gear shaft and communicates with the axial oil passage.

[0007] Furthermore, the gear is slotted to accommodate and secure an oil guide pipe.

[0008] Furthermore, the planetary gear has two sets of third oil passages, which are respectively located at opposite positions on both sides of the planetary gear. Each set of third oil passages has two third radial oil passages that correspond one-to-one with the first bearing. One end of each third radial oil passage extends to the lubricating oil groove of the corresponding first bearing, and the other end extends to the root of the planetary gear teeth.

[0009] The advantages of this utility model are: (1) The lubrication structure of this utility model adds oil grooves to the internal gear ring, planetary carrier and gear respectively. Through the operation of the gear and planetary assembly, the lubricating oil in the frame is introduced into each oil groove by the oil groove, and then the sun gear, internal gear ring, planetary gear, first bearing and second bearing are lubricated through oil circuit and pipeline, so that they are fully lubricated.

[0010] (2) The second oil passage of this utility model is formed by the cooperation of the first radial oil passage, the axial oil passage and the second radial oil passage. As the planetary carrier rotates, the lubricating oil in the frame is carried into the second oil groove and flows into the space between the two first bearings in sequence along the second radial oil passage, the axial oil passage and the first radial oil passage to lubricate the two first bearings at the same time. Both ends of the first radial oil passage are oil outlets, which reduces the restriction of the lubricating oil flow on the rotation angle of the planetary gear and improves the lubrication effect of the first bearing.

[0011] (3) By placing and fixing the oil guide pipe in the gear slot, this utility model avoids the oil guide pipe from interfering with the rotation of the planetary carrier.

[0012] (4) By opening a third oil passage in the planetary gear, the lubricating oil at the root of the planetary gear can be guided to the lubricating oil groove on the first bearing, thereby improving the lubrication effect of the first bearing. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the lubrication structure of the lifting gearbox in the wind power installation platform lifting system of this utility model. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Example This embodiment provides a lubrication structure for lifting the gearbox of a wind power installation platform lifting system, such as... Figure 1 As shown, the gearbox includes a frame, gears 12, and planetary gear assembly. Lubricating oil is stored at the bottom of the frame. The planetary gear assembly includes a sun gear 2, planet gears 3, planetary gear shafts 5, an internal gear ring 6, and a planet carrier 10. One end of the sun gear 2 is mounted on the frame via a bearing housing 1, and the other end is connected to the gear 12. The planet carrier 10 is supported on the outside of the sun gear 2 by a second bearing 11. The planetary gear shaft 5 is mounted on the planet carrier 10. The planet gears 3 are mounted on the outside of the planetary gear shaft 5 via two parallel first bearings 4. The two first bearings 4 are coaxially fitted on the outside of the planetary gear shaft 5, and the planet gears 3 are fitted on the outside of the two first bearings 4, with a distance between the two first bearings 4. The internal gear ring 6 is fitted on the outside of the planet gears 3, and the two sides of the planet gears 3 are respectively meshed with the sun gear 2 and the internal gear ring 6.

[0017] The lubrication structure includes a first oil groove 7, a second oil groove 8, and a third oil groove 9.

[0018] Two first oil grooves 7 are installed side by side on the outer side wall of the internal gear ring 6. The internal gear ring 6 has a first oil passage 14 that connects the first oil grooves 7 and the tooth root of the internal gear ring 6. There are two first oil passages 14, which correspond one-to-one with the first oil grooves 7. One end of the first oil passage 14 extends into the corresponding first oil groove 7 and connects with the first oil groove 7, and the other end extends to the tooth root of the internal gear ring 6.

[0019] The second oil groove 8 is installed on the outer wall of the planetary carrier 10. The planetary carrier 10 and the planetary gear shaft 5 are fitted with a second oil passage that connects the second oil groove 8 and the first bearing 4. The second oil passage includes a first radial oil passage 19, an axial oil passage 18 and a second radial oil passage 17. The first radial oil passage 19 and the axial oil passage 18 are both opened inside the planetary gear shaft 5 and are interconnected. The two ends of the first radial oil passage 19 extend in opposite directions to the opposite positions on both sides of the side wall of the planetary gear shaft 5 and are located between the two first bearings 4. The second radial oil passage 17 is opened inside the planetary carrier 10. One end of the second radial oil passage 17 extends to the second oil groove 8 and is connected to the second oil groove 8, and the other end extends into the planetary gear shaft 5 and is connected to the axial oil passage 18.

[0020] The third oil groove 9 is installed on the end face of the gear 12. An oil guide pipe 15 is installed on the third oil groove 9. The oil inlet of the oil guide pipe 15 is connected to and communicates with the third oil groove 9. The gear 12 is slotted to place the oil guide pipe 15 and fix it. The oil outlet of the oil guide pipe 15 extends to the second bearing 11.

[0021] In this embodiment, the planetary gear 3 has two sets of third oil passages. The two sets of third oil passages are respectively opened at opposite positions on both sides of the planetary gear 3. Each set of third oil passages has two third radial oil passages 16 that correspond one-to-one with the first bearing 4. One end of each third radial oil passage 16 extends to the lubricating oil groove of the corresponding first bearing 4, and the other end extends to the tooth root of the planetary gear 3.

[0022] As gear 12 rotates, when the third oil groove 9 is below the lubricating oil level, the lubricating oil is carried into the third oil groove 9. As gear 12 rotates, the lubricating oil in the third oil groove 9 flows along the oil guide pipe 15 under the third oil groove 9 to the second bearing 11, thereby achieving the function of lubricating the second bearing 11.

[0023] As gear 12 rotates, gear 12 drives sun gear 2 to rotate, sun gear 2 drives planet gear 3 to rotate, and planet gear 3 drives planet carrier 10 to rotate. When the second oil groove 8 is below the lubricating oil level, the lubricating oil is carried into the second oil groove 8. The second oil groove 8 rotates with the planet carrier 10, and the lubricating oil in the second oil groove 8 flows along the second oil passage under the second oil groove 8 to the middle of the two first bearings 4 to lubricate the two first bearings 4.

[0024] Planetary gear 3 drives the internal gear ring 6 to rotate. When the first oil groove 7 is below the lubricating oil level, lubricating oil is drawn into the first oil groove 7. As the first oil groove 7 rotates with the internal gear ring 6, the lubricating oil flows along the first oil passage 14 below the first oil groove 7 to the root of the internal gear ring 6, thus lubricating the internal gear ring 6. Through the meshing of the internal gear ring 6 and the planetary gear 3, the lubricating oil on the internal gear ring 6 is carried to the planetary gear 3, thus lubricating the planetary gear 3. The lubricating oil on the planetary gear 3 can flow to the lubricating oil groove of the first bearing 4 through the third radial oil passage 16, thus lubricating the first bearing 4. Through the meshing of the planetary gear 3 and the sun gear 2, the lubricating oil on the planetary gear 3 is carried to the sun gear 2, thus lubricating the sun gear 2.

[0025] The lubrication structure of the lifting gearbox of the wind power installation platform lifting system adds oil grooves to the internal gear ring 6, planetary carrier 10 and gear 12 respectively. Through the operation of gear 12 and planetary assembly, the lubricating oil in the frame is introduced into each oil groove through the oil grooves, and then the sun gear 2, internal gear ring 6, planetary gear 3, first bearing 4 and second bearing 11 are lubricated through oil circuits and pipelines, so that they are fully lubricated.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lubrication structure for a lifting gearbox in a wind power installation platform lifting system, the gearbox comprising a frame, gears, and a planetary assembly, the planetary assembly comprising a sun gear, planet gears, planet gear shafts, an internal gear ring, and a planet carrier; one end of the sun gear is mounted on the frame via a bearing seat, and the other end is connected to the gear; the planet carrier is supported on the outside of the sun gear via a second bearing; the planet gear shaft is mounted on the planet carrier; the planet gears are mounted on the outside of the planet gear shaft via two parallel first bearings; the internal gear ring is mounted on the outside of the planet gears; and both sides of the planet gears are meshed with the sun gear and the internal gear ring, respectively. The characteristic feature is that: The lubrication structure includes The first oil groove is installed on the outer side wall of the internal gear ring, and the internal gear ring has a first oil passage connecting the first oil groove and the root of the internal gear ring teeth. The second oil groove is installed on the outer wall of the planet carrier, and a second oil passage connecting the second oil groove and the first bearing is opened on the planet carrier and the planet gear shaft. The third oil groove is installed on the end face of the gear. An oil guide pipe is installed on the third oil groove. The oil inlet of the oil guide pipe is connected to and communicates with the third oil groove. The oil outlet of the oil guide pipe extends to the second bearing.

2. The lubrication structure for the lifting gearbox of the wind power installation platform lifting system according to claim 1, characterized in that: The second oil passage includes a first radial oil passage, an axial oil passage, and a second radial oil passage. The first radial oil passage and the axial oil passage are both located inside the planetary gear shaft. The first radial oil passage and the axial oil passage are interconnected. The two ends of the first radial oil passage extend in opposite directions to the opposite positions on both sides of the sidewall of the planetary gear shaft and are located between the two first bearings. The second radial oil passage is located inside the planet carrier. One end of the second radial oil passage extends to the second oil groove and communicates with the second oil groove, and the other end extends into the planetary gear shaft and communicates with the axial oil passage.

3. The lubrication structure for the lifting gearbox of the wind power installation platform lifting system according to claim 1, characterized in that: The gear is slotted to accommodate and secure the oil guide pipe.

4. The lubrication structure for the lifting gearbox of the wind power installation platform lifting system according to claim 1, characterized in that: The planetary gear has two sets of third oil passages, which are respectively located on opposite sides of the planetary gear. Each set of third oil passages has two third radial oil passages that correspond one-to-one with the first bearing. One end of each third radial oil passage extends to the lubricating oil groove of the corresponding first bearing, and the other end extends to the root of the planetary gear teeth.

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