CN216520867U - Waste oil collecting device for variable-pitch bearing of wind driven generator - Google Patents
Waste oil collecting device for variable-pitch bearing of wind driven generator Download PDFInfo
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- CN216520867U CN216520867U CN202122787601.XU CN202122787601U CN216520867U CN 216520867 U CN216520867 U CN 216520867U CN 202122787601 U CN202122787601 U CN 202122787601U CN 216520867 U CN216520867 U CN 216520867U
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- oil
- oil collecting
- waste oil
- bolt
- way joint
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Abstract
The utility model discloses a waste oil collecting device for a variable-pitch bearing of a wind driven generator, which comprises a plurality of waste oil collecting units arranged along the inner periphery of a hub bearing at intervals and an oil collecting pipe used for connecting two adjacent waste oil collecting units, wherein each waste oil collecting unit comprises a four-way joint, a bolt and a nut, two interfaces of the four-way joint are respectively used for connecting the oil collecting pipe, the bolts penetrate through the other two interfaces of the four-way joint and are connected together through the nuts, one end of each bolt, penetrating out of the four-way joint, is screwed into an oil outlet of the hub bearing, and an oil outlet used for discharging waste oil into the oil collecting pipe and an exhaust hole used for discharging gas to the outside are respectively formed inside each bolt. The utility model can effectively solve the problems that the oil collecting bottle is easy to fall off and the like.
Description
Technical Field
The utility model relates to the technical field of wind driven generators, in particular to a waste oil collecting device for a pitch bearing of a wind driven generator.
Background
The wind driven generator pitch bearing adopts the oil collecting bottle to collect waste oil, the oil collecting bottle is arranged at each oil discharge port on the pitch bearing in the fan hub, when the oil amount in the pitch bearing is too high, the excessive oil can be discharged from the oil discharge port along with the rolling effect of the steel ball in the pitch bearing, and the oil collecting bottle arranged on the oil discharge port can collect the waste oil.
The oil collecting bottle mainly comprises a bottle body and a connector assembly, wherein the connector assembly is installed on the oil drain port through threads, and the bottle is screwed on the connector assembly through threads. Except that joint assembly and bottle, a slender permeability cell stands in the middle of the bottle in addition, and its effect is used for the exhaust, and when collecting waste oil, the grease gets into the bottle and has crowded the space that has occupied original air in the bottle, and gas just can discharge through the permeability cell to balanced atmospheric pressure reduces the grease discharge resistance, the collection fat of being convenient for. The oil collection bottle is provided with a plurality of threaded connections, particularly the connection between the bottle body and the bottle cap, and the bottle body of the oil collection bottle falls off from the threaded connection of the joint assembly after the fan runs for a long time. Because fan wheel hub (impeller) is always in the pivoted when aerogenerator normally works, can bump everywhere in the wheel hub after the oil trap falls, probably can pound some electrical elements in the wheel hub to bad, and the waste oil fat in its bottle can spill everywhere at the in-process of striking, and very difficult clearance is the hidden danger of a little to the safety problem of fan. The existing solutions to the problem of oil collection bottle dropping have several ways: 1) increasing the number of turns of the thread and the depth of the thread; 2) the anti-loosening structure is added, and the anti-loosening structure is of a self-locking thread type and a clamp type;
3) the reliability of the oil collecting bottle is improved by selecting a metal bottle cap and an integral hoop. The problem of dropping can not thoroughly be solved to these several kinds of modes, and the structure of collection oil bottle is done more complicatedly more, and the risk point is more, and manufacturing cost is also higher, simultaneously because collection oil bottle is passive form collection, the most collection oil bottle in the unit is in vacant state, does not play the collection function.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, provides a variable-pitch bearing waste oil collecting device of a wind driven generator, and can effectively solve the problems that an oil collecting bottle is easy to fall off and the like.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: the utility model provides a aerogenerator becomes oar bearing waste oil collection device, includes a plurality of waste oil collection units of arranging along the interior week interval of wheel hub bearing and is used for connecting the collection oil pipe of two adjacent waste oil collection units, the waste oil collection unit includes four way connection, bolt and nut, wherein two interfaces of four way connection are used for connecting the collection oil pipe respectively, the bolt runs through two other interfaces of four way connection and links together through the nut, just the one end that the bolt wore out four way connection is twisted in the oil drain of wheel hub bearing, the inside of bolt is formed with oil discharge hole and exhaust hole respectively, the oil discharge hole includes main oil drainage hole and a plurality of branch oil drainage hole that communicate with main oil drainage hole, main oil drainage hole communicates with the oil drain on the wheel hub bearing, a plurality of branch oil drainage hole communicate with two interfaces of four way connection respectively, the inside unnecessary grease of change oar bearing loops through oil drain, the oil drain hole, In the waste oil collection device was arranged into to main oil drainage hole and a plurality of branch oil drainage hole, the exhaust hole includes main exhaust hole and a plurality of branch exhaust hole with main exhaust hole intercommunication, main exhaust hole intercommunication to the outside, a plurality of branch exhaust holes communicate with two interfaces of four-way connection respectively, and the gas in the waste oil collection device is discharged through the exhaust hole to balanced atmospheric pressure reduces the grease discharging resistance.
Further, a sealing ring is arranged between the bolt and the four-way joint.
Furthermore, the oil collecting pipe is connected with the four-way joint through a clamping hoop.
Furthermore, main oil drain hole and main exhaust hole are located the axis of bolt respectively, and a plurality of branch oil drain holes and a plurality of branch gas vent all set up along the radial of bolt.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. the waste oil collecting units are fixed on the variable-pitch bearing through threaded connection, and all the waste oil collecting units are connected in series through the oil collecting pipes to form a whole, so that the performance is more reliable, and the problem that a single oil collecting bottle falls in the prior art is effectively solved.
2. According to the utility model, the waste oil in the variable-pitch bearing is discharged into the oil collecting pipe through the waste oil collecting unit, the design redundancy of the oil collecting pipe for accommodating the waste oil is far greater than that of the oil collecting bottle, and the problem that most of the oil collecting bottles are difficult to collect the waste oil is solved.
3. The waste oil collecting device has the advantages of simple structure, low cost, small occupied space and avoidance of interference.
Drawings
FIG. 1 is a schematic view of the installation of the waste oil collection device of the present invention on a pitch bearing.
FIG. 2 is a schematic view showing the connection between the waste oil collecting unit and the oil collecting pipe according to the present invention.
FIG. 3 is a front view of the waste oil collection unit of the present invention.
FIG. 4 is a side view of a waste oil collection unit of the present invention.
FIG. 5 is a cross-sectional view of the four-way joint of the present invention.
Fig. 6 is a cross-sectional view of the bolt of the present invention.
FIG. 7 is a schematic view of the present invention collecting waste oil.
FIG. 8 is a schematic of the venting of the present invention.
Detailed Description
The present invention is further illustrated with reference to the following specific examples, but the mode of use of the present invention is not limited thereto.
As shown in fig. 1 to 8, the waste oil collecting device for the pitch bearing of the wind driven generator according to the embodiment includes a plurality of waste oil collecting units arranged at intervals along the inner circumference of the hub bearing, and an oil collecting pipe for connecting two adjacent waste oil collecting units; the number of the waste oil collecting units is consistent with that of oil discharge ports of a variable pitch axis, one waste oil collecting unit is correspondingly installed in one oil discharge port and comprises a four-way joint 1, a bolt 2, a sealing ring 3 and a nut 4, a connector 101 and a connector 102 of the four-way joint 1 are respectively used for being connected with an oil collecting pipe 6 through a hoop 5, the oil collecting pipe 6 is preferably a hose, the bolt 2 penetrates through a connector 103 and a connector 104 of the four-way joint 1 and is connected together through two nuts 4, the sealing ring 3 for preventing oil leakage is arranged between the bolt 2 and the four-way joint 1, one end, penetrating out of the four-way joint 1, of the bolt 2 is screwed into an oil discharge port 8 of a hub bearing 7, an oil discharge hole and an exhaust hole are respectively formed inside the bolt 2, the oil discharge hole comprises a main oil discharge hole 201 and a plurality of sub oil discharge holes 202 communicated with the main oil discharge hole 201, and the main oil discharge hole 201 is located on the axis of the bolt 2, the oil-discharging hole is communicated with an oil discharging port 8 on a hub bearing 7, a plurality of sub oil-discharging holes 202 are arranged along the radial direction of a bolt 2 and are respectively communicated with a connector 101 and a connector 102 of a four-way joint 1, redundant grease in the variable-pitch bearing 7 sequentially passes through the oil discharging port 8, a main oil-discharging hole 201 and the sub oil-discharging holes 202 and is discharged into a waste oil collecting device, the exhaust holes comprise a main exhaust hole 203 and a plurality of sub exhaust holes 204 communicated with the main exhaust hole 203, the main exhaust hole 203 is located on the axis of the bolt 2 and is communicated to the outside, the sub exhaust holes 204 are arranged along the radial direction of the bolt 2 and are respectively communicated with the connector 101 and the connector 102 of the four-way joint 1, when the waste oil enters the waste oil collecting device and occupies the space of original air in the waste oil collecting device, and the gas in the waste oil collecting device is discharged through the exhaust holes so as to balance air pressure and reduce grease-discharging resistance.
Specifically, the four-way joint 1, the bolt 2 and the nut 4 can be made of aluminum, carbon steel or stainless steel according to actual requirements.
The whole waste oil collection device that is of this embodiment is cyclic annular and arranges in the interior week that becomes the oar bearing, and all waste oil collection units establish ties through the collection oil pipe and become whole, and the design redundancy that holds waste oil is far greater than an oil collection bottle, and the performance is more reliable, effectively avoids the problem that single oil collection bottle dropped among the prior art.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.
Claims (4)
1. The utility model provides a aerogenerator becomes oar bearing waste oil collection device which characterized in that: the hub bearing oil collecting device comprises a plurality of waste oil collecting units arranged along the inner periphery of a hub bearing at intervals and an oil collecting pipe used for connecting two adjacent waste oil collecting units, wherein each waste oil collecting unit comprises a four-way joint, a bolt and a nut, two interfaces of the four-way joint are respectively used for connecting the oil collecting pipe, the bolt penetrates through the other two interfaces of the four-way joint and is connected together through the nut, one end of the bolt, penetrating out of the four-way joint, is screwed into an oil discharging port of the hub bearing, an oil discharging hole and an exhaust hole are respectively formed in the bolt, the oil discharging hole comprises a main oil discharging hole and a plurality of sub oil discharging holes communicated with the main oil discharging hole, the main oil discharging hole is communicated with the oil discharging port on the hub bearing, the plurality of sub oil discharging holes are respectively communicated with the two interfaces of the four-way joint, and redundant grease in the variable pitch bearing sequentially passes through the oil discharging port, the main oil discharging hole and the plurality of sub oil discharging holes and is discharged into the waste oil collecting device, the exhaust hole comprises a main exhaust hole and a plurality of sub exhaust holes communicated with the main exhaust hole, the main exhaust hole is communicated to the outside, the sub exhaust holes are communicated with two interfaces of the four-way connector respectively, and gas in the waste oil collecting device is exhausted through the exhaust hole to balance air pressure and reduce grease discharging resistance.
2. The waste oil collecting device for the pitch bearing of the wind driven generator according to claim 1, wherein: and a sealing ring is arranged between the bolt and the four-way joint.
3. The waste oil collecting device for the pitch bearing of the wind driven generator according to claim 1, wherein: the oil collecting pipe is connected with the four-way joint through a clamping hoop.
4. The waste oil collecting device for the pitch bearing of the wind driven generator according to claim 1, wherein: the main oil discharge hole and the main exhaust hole are respectively located on the axis of the bolt, and the plurality of sub oil discharge holes and the plurality of sub exhaust holes are arranged along the radial direction of the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122787601.XU CN216520867U (en) | 2021-11-15 | 2021-11-15 | Waste oil collecting device for variable-pitch bearing of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122787601.XU CN216520867U (en) | 2021-11-15 | 2021-11-15 | Waste oil collecting device for variable-pitch bearing of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216520867U true CN216520867U (en) | 2022-05-13 |
Family
ID=81529447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122787601.XU Active CN216520867U (en) | 2021-11-15 | 2021-11-15 | Waste oil collecting device for variable-pitch bearing of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216520867U (en) |
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2021
- 2021-11-15 CN CN202122787601.XU patent/CN216520867U/en active Active
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