CN214424921U - Structure for preventing bearing of high-speed-stage blade side of wind power gear box from running outer ring - Google Patents
Structure for preventing bearing of high-speed-stage blade side of wind power gear box from running outer ring Download PDFInfo
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- CN214424921U CN214424921U CN202120440986.XU CN202120440986U CN214424921U CN 214424921 U CN214424921 U CN 214424921U CN 202120440986 U CN202120440986 U CN 202120440986U CN 214424921 U CN214424921 U CN 214424921U
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- bearing
- outer ring
- box body
- stop
- blade side
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Abstract
The utility model provides a prevent structure of wind-powered electricity generation gear box high-speed grade blade side bearing race outer lane, its characterized in that: the outer edge of the bearing outer ring is provided with a stop groove which is a wedge-shaped groove with an inclined plane; the end part of the stop pin is a wedge-shaped head with an inclined plane; the oil injection ring is arranged in a bearing hole of the box body, the bearing outer ring is arranged in the bearing hole of the box body, the stop groove faces the inner side of the box body, and the bearing outer ring tightly abuts against the oil injection ring; the stop pin is inserted into the pin hole of the baffle plate, the end part of the stop pin is inserted into the stop groove, and the inclined surface of the end part of the stop pin is in tight contact with the inclined surface of the stop groove; the baffle is fixed on the box body through bolts. The utility model provides a can carry out axial positioning and radial positioning's the bearing outer ring mounting structure that prevents simultaneously.
Description
Technical Field
The utility model relates to a bearing arrangement of wind-powered electricity generation gear box, specifically speaking are a institutional advancement that is used for wind-powered electricity generation gear box high speed shafting blade side bearing.
Background
The outer ring of the high-speed-level blade side bearing of the wind power gear box is in interference fit with a bearing hole of a box body generally, so that the outer ring of the bearing and the bearing hole are prevented from rotating relatively, and the bearing is commonly called as an outer ring.
Because the bearing baffle can only prevent the axial float of the wind power gearbox high-speed shaft blade side bearing after running the outer ring, and can not prevent the radial rotation of the high-speed shaft blade side bearing after running the outer ring. In the actual working process, the temperature rise of parts causes the thermal expansion of parts, and the linear expansion coefficient of a common box body material is far higher than that of a bearing material due to different thermal expansion coefficients of materials, so that the assembly interference between a box body bearing hole and a high-speed shaft blade side bearing outer ring is reduced and even fails. Therefore, the high-speed blade side bearing is likely to have a trouble of running out of the outer ring during actual operation, that is, a relative slip between the high-speed blade side bearing and the bearing hole occurs. At the moment, the high-speed shaft blade side bearing part has high temperature, large vibration and aggravated abrasion between the bearing outer ring and the bearing hole, so that the precision and the service life of parts are reduced. In addition, the increased friction converts most of the energy into useless heat and noise, reducing transmission efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prevent that wind-powered electricity generation gear box high speed grade blade side bearing from running structure of outer lane, its purpose is solved prior art's shortcoming, provides one kind and can carry out axial positioning and radial positioning simultaneously prevents that the bearing from running outer lane mounting structure.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a prevent that wind-powered electricity generation gear box high-speed grade blade side bearing from running structure of outer lane which characterized in that:
the outer edge of the bearing outer ring is provided with a stop groove which is a wedge-shaped groove with an inclined plane;
the end part of the stop pin is a wedge-shaped head with an inclined plane;
the oil injection ring is arranged in a bearing hole of the box body, the bearing outer ring is arranged in the bearing hole of the box body, the stop groove faces the inner side of the box body, and the bearing outer ring tightly abuts against the oil injection ring;
the stop pin is inserted into the pin hole of the baffle plate, the end part of the stop pin is inserted into the stop groove, and the inclined surface of the end part of the stop pin is in tight contact with the inclined surface of the stop groove;
the baffle is fixed on the box body through bolts.
The notch of the stopper groove is directly below the bearing outer race and faces the inside of the housing.
The bolt is tightly twisted and bound with an iron wire.
The utility model discloses an useful part lies in:
the utility model discloses take on the high-speed shaft blade side bearing outer race with the mode that increases the locating pin in the bearing baffle, carry out axial positioning and radial positioning simultaneously to high-speed shaft blade side bearing to prevent the high-speed shaft blade side bearing from running the emergence of outer race trouble. The mounting structure can effectively prevent the outer ring fault during the working of the high-speed shaft blade side bearing caused by the problems of undersize design of the fit interference magnitude, low processing precision, overlarge linear expansion coefficient of a box material, overhigh working temperature of the bearing and the like. The service life of the high-speed shaft blade side bearing and the mounting hole is prolonged, and the faults of abrasion, heating vibration, noise and the like between the high-speed shaft blade side bearing and the bearing hole of the box body are avoided.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a sectional view of the present invention;
FIG. 2 is a partial sectional view of the bearing outer race of the present invention;
fig. 3 is a partial enlarged view in the direction E of fig. 2.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor.
As shown in fig. 1, 2, and 3:
the utility model discloses mainly to preventing that wind-powered electricity generation gear box high speed grade blade side bearing from running outer lane trouble. After the wind power gear box runs for a long time, the outer ring of the high-speed bearing and the bearing hole slide relatively to generate abrasion. Over time, wear is progressively exacerbated, resulting in reduced precision and life of the components, increased friction converts most of the energy into unwanted heat and noise, and reduced transmission efficiency.
Because the bearing baffle can only prevent the axial float of the wind power gear box high-speed shaft blade side bearing after running the outer ring, and can not prevent the radial rotation of the high-speed shaft blade side bearing after running the outer ring, the stop groove is processed to the installed bearing outer ring, and the stop pin and the baffle are installed to prevent the wind power gear box high-speed stage blade side bearing from running the outer ring.
Prevent that bearing from running outer lane mounting structure mainly by bearing 1, baffle 2, stop pin 3, spout oil ring 4, box 5.
First, a stopper groove 12 is formed in the outer edge of a bearing outer ring 11 of a bearing 1, and the sectional shape of the stopper groove 12 in a cross section passing through the axis of the bearing 1 is triangular and the sectional shape in a cross section perpendicular to the axial direction of the bearing 1 is rectangular.
Thus, the detent groove 12 is a wedge-shaped groove having a slope.
Then the oil spray ring 4 is installed in the bearing hole of the box body 5, then the bearing outer ring 11 with the stop groove 12 is installed in the bearing hole of the box body 5, the stop groove 12 on the bearing outer ring 11 is noticed to face the inner side of the box body 5, namely, the side close to the inner side of the box body 5, then the baffle plate 2 is combined with the cylindrical stop pin 3, the end 31 of the stop pin 3 is a wedge head with an inclined plane and matched with the stop groove 12, finally the baffle plate 2 is fixed on the box body 5 through bolts, and at this time, the end 31 of the stop pin 3 is inserted into the stop groove 12.
The installation can also be carried out by the following steps:
1: the oil spray ring 4 is mounted in place.
2: a stop groove 12 is processed on the outer edge of a bearing outer ring 11 to be installed, the bearing outer ring 11 is installed in a bearing hole of the box body 5, the notch of the stop groove 11 faces towards the inner side of the box body 5 directly below, and the bearing outer ring 11 is tightly abutted against the oil injection ring 4.
3: measuring the size from the end face of the box body 5 to the end face of the bearing 1, wherein the height deviation of 4 points is within 0.04, and taking an average value A; measuring the size of a spigot of the baffle 2, wherein the deviation of 4 points is within 0.04, and taking an average value B; and calculating whether B is equal to A + 0.03-0.05 or not, and determining whether a vehicle pressing plate needs to be matched or not.
4: installing the stop pin 3, enabling the inclined plane of the end part 31 of the stop pin 2 to be in tight contact with the inclined plane of the stop groove 12, jacking the bearing 1, and measuring the exposed length C of the stop pin; measuring the effective depth D of the pin hole on the baffle 2; the D-C is required to be less than 1mm when the diameter is more than 0.5 mm.
5: and (3) installing a stop pin 31 into a pin hole of the baffle plate 2, aligning the stop pin 31 with a stop groove 12 on the bearing outer ring 11, installing the baffle plate 2 on the box body 5 in place by using a bolt, tightening the bolt and binding an iron wire.
The outer ring running phenomenon can occur to the high-speed shaft blade side bearing of the wind power gearbox, the outer ring running fault can be effectively prevented when the high-speed shaft blade side bearing works by the aid of the installation structure, the service life of the high-speed shaft blade side bearing and the installation hole is prolonged, and faults such as abrasion, heating vibration and noise between the high-speed shaft blade side bearing and a box body bearing hole are avoided.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. The utility model provides a prevent that wind-powered electricity generation gear box high-speed grade blade side bearing from running structure of outer lane which characterized in that: the outer edge of the bearing outer ring is provided with a stop groove which is a wedge-shaped groove with an inclined plane; the end part of the stop pin is a wedge-shaped head with an inclined plane; the oil injection ring is arranged in a bearing hole of the box body, the bearing outer ring is arranged in the bearing hole of the box body, the stop groove faces the inner side of the box body, and the bearing outer ring tightly abuts against the oil injection ring; the stop pin is inserted into the pin hole of the baffle plate, the end part of the stop pin is inserted into the stop groove, and the inclined surface of the end part of the stop pin is in tight contact with the inclined surface of the stop groove; the baffle is fixed on the box body through bolts.
2. The structure for preventing the outer ring of the blade side bearing of the high-speed stage of the wind power gearbox from running out as claimed in claim 1, wherein: the notch of the stopper groove is directly below the bearing outer race and faces the inside of the housing.
3. The structure for preventing the outer ring of the blade side bearing of the high-speed stage of the wind power gearbox from running out as claimed in claim 1, wherein: the bolt is tightly twisted and bound with an iron wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120440986.XU CN214424921U (en) | 2021-03-01 | 2021-03-01 | Structure for preventing bearing of high-speed-stage blade side of wind power gear box from running outer ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120440986.XU CN214424921U (en) | 2021-03-01 | 2021-03-01 | Structure for preventing bearing of high-speed-stage blade side of wind power gear box from running outer ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214424921U true CN214424921U (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120440986.XU Active CN214424921U (en) | 2021-03-01 | 2021-03-01 | Structure for preventing bearing of high-speed-stage blade side of wind power gear box from running outer ring |
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| Country | Link |
|---|---|
| CN (1) | CN214424921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427576A (en) * | 2022-02-11 | 2022-05-03 | 远景能源有限公司 | Bearing outer ring stop device and manufacturing and mounting method thereof |
-
2021
- 2021-03-01 CN CN202120440986.XU patent/CN214424921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427576A (en) * | 2022-02-11 | 2022-05-03 | 远景能源有限公司 | Bearing outer ring stop device and manufacturing and mounting method thereof |
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