CN210423664U - Wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure - Google Patents
Wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure Download PDFInfo
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- CN210423664U CN210423664U CN201920434438.9U CN201920434438U CN210423664U CN 210423664 U CN210423664 U CN 210423664U CN 201920434438 U CN201920434438 U CN 201920434438U CN 210423664 U CN210423664 U CN 210423664U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure, include: the device comprises a transmission shaft, a box body, a rolling bearing, a bearing ring, two sealing pieces and a positioning plate, wherein the positioning plate is used for limiting the axial positions of an outer ring of the rolling bearing and the bearing ring and allowing the outer ring of the rolling bearing and the bearing ring to move radially; the rolling bearing is sleeved on the periphery of the transmission shaft; the bearing ring is sleeved on the periphery of the rolling bearing; the box body is provided with a shaft hole for the transmission shaft to pass through; a damping gap is formed between the bearing ring and the hole wall of the shaft hole; the two sealing elements are arranged at two ends of the sealing damping gap in the damping gap; the bearing ring is positioned between the two positioning plates; the combined bearing damping support structure of the wind power speed increasing box further comprises a hydraulic oil supply system for supplying oil to the damping gap. The utility model discloses an useful part lies in, has better damping shock attenuation effect, can effective noise reduction.
Description
Technical Field
The utility model relates to a wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure.
Background
In wind power generators, the wind power main gearbox is a key component. The wind power main gearbox is also called a wind power generation gearbox, a wind power gearbox or a wind power speed increasing box. For a gearbox with high power and high-speed operation, the number of gear transmission stages is large, the load is complex and variable, and particularly, the vibration and the noise of the high-speed stage are difficult to control, so that the reliability of the wind power gearbox is not high, the operation of the whole transmission chain of a fan is influenced, and even the environment is damaged.
The existing wind power gear box mostly adopts a rolling bearing, and has the advantages of simple structural design, convenience in lubrication, but the defects of high vibration and noise and difficulty in control. How to seek a support mode with vibration reduction and low noise becomes a problem to be solved by a high-performance wind power gear box.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure with the support mode of damping low noise.
In order to achieve the above object, the utility model adopts the following scheme:
a wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure includes: the device comprises a transmission shaft, a box body, a rolling bearing, a bearing ring, two sealing pieces and a positioning plate, wherein the positioning plate is used for limiting the axial positions of an outer ring of the rolling bearing and the bearing ring and allowing the outer ring of the rolling bearing and the bearing ring to move radially; the rolling bearing is sleeved on the periphery of the transmission shaft; the bearing ring is sleeved on the periphery of the rolling bearing; the box body is provided with a shaft hole for the transmission shaft to pass through; a damping gap is formed between the bearing ring and the hole wall of the shaft hole; the two sealing elements are arranged at two ends of the sealing damping gap in the damping gap; the bearing ring is positioned between the two positioning plates; the combined bearing damping support structure of the wind power speed increasing box further comprises a hydraulic oil supply system for supplying oil to the damping gap.
Further, the case is provided with an oil passage for supplying oil to the damping gap.
Further, the hydraulic oil supply system includes: an oil pump for pumping oil into the damping gap.
Further, the hydraulic oil supply system further includes: the oil is pumped into the oil tank of the damping gap by an oil supply pump, and the oil tank is communicated to the oil pump.
Further, the positioning plate is fixed to the case by bolts.
Furthermore, two rolling bearings are sleeved on the transmission shaft; the bearing ring is sleeved on the peripheries of the two rolling bearings.
Furthermore, the combined bearing damping support structure of the wind power speed increasing box also comprises a distance ring; the distance ring is arranged between the two rolling bearings.
A wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure includes: the device comprises a transmission shaft, a box body, a rolling bearing, a bearing ring, two sealing pieces and a positioning plate for limiting the axial positions of an outer ring of the rolling bearing and the bearing ring; the rolling bearing is sleeved on the periphery of the transmission shaft; the bearing ring is sleeved on the periphery of the rolling bearing; the box body is provided with a shaft hole for the transmission shaft to pass through; the sealing element is sleeved on the periphery of the bearing ring and contacts the outer side surface of the bearing ring and the hole wall of the shaft hole; 2 sealing pieces, the outer side surface of the bearing ring and the hole wall of the shaft hole form a damping gap; the bearing ring is positioned between the two positioning plates; the combined bearing damping support structure of the wind power speed increasing box further comprises an oil pump for supplying oil to the damping gap and filling the damping gap to form a damping oil film; the box body is provided with an oil way for supplying oil to the damping gap; the oil passage is communicated to the oil pump.
Further, wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure still includes: the oil is pumped into the oil tank of the damping gap by an oil supply pump, and the oil tank is communicated to the oil pump.
Further, the positioning plate is fixed to the case by bolts.
The utility model discloses an useful part lies in, and the bearing ring can extrude the shock attenuation oil film in the shock attenuation clearance when taking place radial translation, constitutes the oil film attenuator. The oil pump can guarantee that the damping gap is filled with hydraulic oil all the time, and pressure can be realized through the oil pump and oil film extrusion together. And oil is filled between the bearing ring and the bearing seat hole to serve as damping oil. The damping oil film is extruded by the bearing ring, so that the damping effect of the whole shafting is realized, and the noise can be effectively reduced.
Drawings
Fig. 1 is a schematic view of a combined bearing damping support structure of a wind power speed increasing box according to an embodiment of the present invention;
fig. 2 is a schematic view from a V perspective of the combined bearing damping support structure of the wind power speed increasing box in fig. 1.
Wind-powered electricity generation increaser combination formula bearing shock attenuation bearing structure 100, transmission shaft 1, box 2, oil circuit 21, antifriction bearing 3, bearing ring 4, sealing member 5, locating plate 6, oil pump 7, oil tank 8, shock attenuation clearance 9.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a combined bearing damping and supporting structure 100 for a wind power speed increasing box comprises: the device comprises a transmission shaft 1, a box body 2, a rolling bearing 3, a bearing ring 4, a sealing piece 5, a positioning plate 6 and a hydraulic oil supply system.
The rolling bearing 3 is sleeved on the periphery of the transmission shaft 1. The rolling bearing 3 is in interference fit with the transmission shaft 1. The bearing ring 4 is sleeved on the periphery of the rolling bearing 3. The bearing ring 4 is in interference fit with the rolling bearing 3. The case 2 is formed with a shaft hole through which the transmission shaft 1 passes. The rolling bearing 3 and the bearing ring 4 are located in the shaft hole.
The positioning plate 6 is used for limiting the axial positions of the outer ring of the rolling bearing 3 and the bearing ring 4. The positioning plate 6 allows the outer ring of the rolling bearing 3 and the bearing ring 4 to move radially. The bearing ring 4 is located between two positioning plates 6. The outer ring of the rolling bearing 3 is located between the two positioning plates 6. The positioning plate 6 is fixed to the case 2 by bolts. Two locating plates 6 are respectively arranged at two ends of the shaft hole. The positioning plate 6 and the bearing ring 4 form a wire pair, so that the outer ring of the rolling bearing 3 and the bearing ring 4 can translate in the radial direction without rotating.
As a specific embodiment, two rolling bearings are sleeved on the transmission shaft 1. The two rolling bearings may be identical bearings or different bearings. The bearing ring 4 is sleeved on the peripheries of the two rolling bearings 3. Specifically, the combined bearing damping support structure 100 of the wind power speed increasing box further comprises a distance ring. The distance ring is arranged between the two rolling bearings 3. The distance ring is arranged between the outer rings of the two rolling bearings 3.
A damping gap 9 is formed between the bearing ring 4 and the hole wall of the shaft hole. Two sealing elements 5 are arranged in the damping gap 9 sealing both ends of the damping gap 9. The sealing element 5 is sleeved on the periphery of the bearing ring 4 and contacts the outer side surface of the bearing ring 4 and the hole wall of the shaft hole. The damping gap 9 is enclosed by 2 sealing elements 5, the outer side surface of the bearing ring 4 and the hole wall of the shaft hole.
The case 2 is provided with an oil passage 21 for supplying oil to the damper gap 9. As a specific embodiment, the oil passage 21 is directly formed on the case 2 by machining. As an alternative embodiment, the oil circuit may also be mounted to the housing as a separate line.
The hydraulic oil supply system is used to supply oil to the damping gap 9. Specifically, the hydraulic oil supply system supplies oil into the damper gap 9 via the oil passage 21 to fill the damper gap 9 so that a damper oil film is formed between the bore wall of the shaft hole and the bearing ring 4.
The hydraulic oil supply system includes an oil pump 7. The oil pump 7 communicates to an oil passage 21. The oil pump 7 supplies oil into the damper gap 9 through an oil passage 21.
As a specific embodiment, the hydraulic oil supply system further includes an oil tank 8. The oil tank 8 is connected to an oil pump 7, and the oil pump 7 pumps oil in the oil tank 8 into the damping gap 9. As an alternative embodiment, a separate oil tank is not needed, and lubricating oil in the wind power gearbox can be pumped into the damping gap.
When the bearing ring 4 is translated in the radial direction, the damping oil film in the damping gap 9 can be extruded by the bearing ring to form the oil film damper. The oil pump 7 can ensure that the damping gap 9 is filled with hydraulic oil all the time, and the pressure can be realized through the oil pump and oil film extrusion together. Oil is filled between the bearing ring 4 and the bearing seat hole to serve as damping oil. The damping oil film is extruded by the bearing ring 4, so that the damping effect of the whole shafting is realized.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure which characterized in that includes: the device comprises a transmission shaft, a box body, a rolling bearing, a bearing ring, two sealing pieces and a positioning plate, wherein the positioning plate is used for limiting the axial positions of an outer ring of the rolling bearing and the bearing ring and allowing the outer ring of the rolling bearing and the bearing ring to move radially; the rolling bearing is sleeved on the periphery of the transmission shaft; the bearing ring is sleeved on the periphery of the rolling bearing; the box body is provided with a shaft hole for the transmission shaft to pass through; a damping gap is formed between the bearing ring and the hole wall of the shaft hole; the two sealing elements are arranged in the shock absorption gap to seal two ends of the shock absorption gap; the bearing ring is positioned between the two positioning plates; the combined bearing damping support structure of the wind power speed increasing box further comprises a hydraulic oil supply system for supplying oil to the damping gap.
2. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 1,
the case is provided with an oil passage for supplying oil into the damping gap.
3. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 1,
the hydraulic oil supply system includes: an oil pump for pumping oil into the damping gap.
4. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 3,
the hydraulic oil supply system further includes: and the oil tank is communicated to the oil pump.
5. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 1,
the positioning plate is fixed to the box body through bolts.
6. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 1,
the transmission shaft is sleeved with two rolling bearings; the bearing ring is sleeved on the peripheries of the two rolling bearings.
7. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 6,
the combined bearing damping support structure of the wind power speed increasing box further comprises a distance ring; the distance ring is arranged between the two rolling bearings.
8. The utility model provides a wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure which characterized in that includes: the device comprises a transmission shaft, a box body, a rolling bearing, a bearing ring, two sealing pieces and a positioning plate for limiting the axial positions of an outer ring of the rolling bearing and the bearing ring; the rolling bearing is sleeved on the periphery of the transmission shaft; the bearing ring is sleeved on the periphery of the rolling bearing; the box body is provided with a shaft hole for the transmission shaft to pass through; the sealing element is sleeved on the periphery of the bearing ring and contacts the outer side surface of the bearing ring and the hole wall of the shaft hole; 2, a damping gap is defined by the sealing element, the outer side surface of the bearing ring and the hole wall of the shaft hole; the bearing ring is positioned between the two positioning plates; the combined bearing damping support structure of the wind power speed increasing box further comprises an oil pump for supplying oil to the damping gap and filling the damping gap to form a damping oil film; the box body is provided with an oil way for supplying oil to the damping gap; the oil passage is communicated to the oil pump.
9. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 8,
wind-powered electricity generation speed-increasing box combination formula bearing shock attenuation bearing structure still includes: and the oil tank is communicated to the oil pump.
10. The combined bearing damping and supporting structure of the wind power speed increasing box according to claim 8,
the positioning plate is fixed to the box body through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920434438.9U CN210423664U (en) | 2019-04-02 | 2019-04-02 | Wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920434438.9U CN210423664U (en) | 2019-04-02 | 2019-04-02 | Wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423664U true CN210423664U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920434438.9U Active CN210423664U (en) | 2019-04-02 | 2019-04-02 | Wind-powered electricity generation acceleration rate case combination formula bearing shock attenuation bearing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423664U (en) |
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2019
- 2019-04-02 CN CN201920434438.9U patent/CN210423664U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200509 Address after: 211103 No.30, Houjiao Road, gaoxinyuan, Jiangning District, Nanjing City, Jiangsu Province Patentee after: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. Address before: 211103 Jiangning Science Park, Nanjing, Jiangsu, 1 Tianyuan East Road. Co-patentee before: Nanjing High Precision Transmission Equipment Manufacturing Group Co.,Ltd. Patentee before: NANJING HIGH SPEED GEAR MANUFACTURING Co.,Ltd. |
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Effective date of registration: 20230207 Granted publication date: 20200428 |
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Date of cancellation: 20230327 Granted publication date: 20200428 |
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