CN202659857U - Gear box of wind generating set - Google Patents
Gear box of wind generating set Download PDFInfo
- Publication number
- CN202659857U CN202659857U CN 201220379734 CN201220379734U CN202659857U CN 202659857 U CN202659857 U CN 202659857U CN 201220379734 CN201220379734 CN 201220379734 CN 201220379734 U CN201220379734 U CN 201220379734U CN 202659857 U CN202659857 U CN 202659857U
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- gear box
- reduced
- gear
- box body
- sampling
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Abstract
The utility model discloses a gear box of a wind generating set. The gear box comprises a gear box body; the gear box body comprises an upper shell and a lower shell; and the lower shell has an integrated structure. The utility model has the advantages that after working liquid of the gear box is sampled by adopting a vacuum sampling method, machining design of a sampling door on the lower shell is eliminated, and the working liquid is sampled through an oil injection hole or an observation hole, so that the machining quantity of the box body structure of the gear box is reduced, unnecessary structural design of the box body is reduced, and the mechanical strength of the box body can be improved by over 1.8 percent according to calculation; the manufacturing cost is reduced, the service life of the gear box is prolonged, and the fault occurrence frequency is reduced; by eliminating a sampling space reserved around the sampling door, the gear box is compact in structure; and after the sampling door of the box body of the gear box is eliminated, sealing points of the gear box are reduced, and leakage probabilities of gear oil and the working liquid are reduced.
Description
Technical field
The utility model relates to a kind of gear-box, particularly relates to a kind of wind-driven generator group wheel box.
Background technique
Wind energy is cleaning, one of free of contamination renewable energy sources, and wind-power electricity generation is present ripe, the most on the largest scale a kind of of renewable energy technologies in the world.According to measuring and calculating, global available wind energy resources is 20,000,000,000 kilowatts, is about the whole world and can utilizes 10 times of waterpower resourses.By the end of the year 2010, Wind Power In China installation total amount reaches 4182.7 ten thousand kilowatts, reaches 62% than 2009 year-on-year amplification, surmounts first the U.S., becomes wind-powered electricity generation installation the world's strongest nation.
The core component of wind-power electricity generation transmission is gear-box, and in China's wind power generating set fault, the spoilage of gear-box is the highest in the wind-powered electricity generation unit, reaches 40-50%.Because installation conditions is very poor, the dismounting of gear-box and maintenance are very difficult, costly.The direct and consequential damage that gearbox fault brings makes the owner bear approximately nearly hundred million yuan economic loss every year.Only have structure and the operation maintenance ability paying much attention to and improve constantly gearbox of wind turbine, the good operation of guarantee gearbox of wind turbine and unit.The gear-box stressing conditions is complicated, because the effect of its transferring power, casing has very strict selecting materials and structural design.The requirement casing at first will have material behavior and the dimensional stability under enough mechanical strengths and the extreme difference in temperature condition.
The sampling of the gear-box working solution of wind power generating set and analysis of experiments are one of important steps of carrying out the wind power equipment regular maintenance, and safe, the stable and economical operation of wind-powered electricity generation unit is all played an important role.At present, GB7597-87 " oil for electric power (transformer oil is adopted in the sampling of gear-box working solution, steam turbine oil) sampling method ", utilize GB7597-87 " oil for electric power (transformer oil, steam turbine oil) sampling method " sampling need be at gear-box lower shell body 2 processing sampling gates 3 as described in Figure 1, so just cause the gear case body mechanical strength to descend, in the gear-box running, so that progressively creep strain of gear-box, the stress that can bear, the ability of bending load and moment and shock loads descends, and increases the gear-box frequency that fault occurs in running.
The model utility content
The purpose of this utility model is to provide a kind of wind-driven generator group wheel box.
The purpose of this utility model is implemented by following technological scheme, a kind of wind-driven generator group wheel box, and it comprises gear case body, and described gear case body comprises upper shell and lower shell body, and described lower shell body is structure as a whole.
Be used for the vacuum sampling method of gear-box working solution sampling-open oil hole or peep hole on the wind-driven generator group wheel box, in the fluid that oil reservoir middle and lower part in the probe tube one end interventional instrument of cleaning is representative, the other end of probe tube is connected the method for taking a sample with vacuum sampler.
The utility model has the advantage of, (1) after the working solution of gear-box adopts the vacuum sampling method, the fabrication design of the sampling gate on the cancellation lower shell body, taken a sample by oil hole or peep hole, reduce the amount of finish of gear box body structure, reduced the unnecessary structural design of casing, it is estimated that and to improve the casing mechanical strength more than 1.8%; (2) improve the rigidity of support of casing, prevented the operating progressively creep strain of casing, can bear larger stress, bending load and moment and shock loads, so that gear-box operates steadily, guaranteed its transmission quality; (3) reduce manufacture cost, improve its working life, the frequency that Reduction of failure occurs; (4) eliminate the sampler space of reserving around the sampling gate, make the structure of equipment compacter; (5) behind the gear case body cancellation sampling gate, reduce the seal point of gear-box itself, reduced the probability of sewing of gear oil working solution.
Description of drawings
Wind-driven generator group wheel box structural drawing when Fig. 1 takes a sample for employing GB7597-87 " oil for electric power (transformer oil, steam turbine oil) sampling method ".
Wind-driven generator group wheel box structural drawing when Fig. 2 takes a sample for employing vacuum sampling method.
Upper shell 1, lower shell body 2, sampling gate 3.
Embodiment: as shown in Figure 2, a kind of wind-driven generator group wheel box, it comprises gear case body, and gear case body comprises upper shell 1 and lower shell body 2, and lower shell body 2 is structure as a whole.
Claims (1)
1. wind-driven generator group wheel box, it comprises gear case body, and described gear case body comprises upper shell and lower shell body, it is characterized in that, and described lower shell body is structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379734 CN202659857U (en) | 2012-07-25 | 2012-07-25 | Gear box of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379734 CN202659857U (en) | 2012-07-25 | 2012-07-25 | Gear box of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659857U true CN202659857U (en) | 2013-01-09 |
Family
ID=47454766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379734 Expired - Lifetime CN202659857U (en) | 2012-07-25 | 2012-07-25 | Gear box of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659857U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782409A (en) * | 2016-04-18 | 2016-07-20 | 三重型能源装备有限公司 | Torsion shaft device, gearbox and wind driven generator |
-
2012
- 2012-07-25 CN CN 201220379734 patent/CN202659857U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782409A (en) * | 2016-04-18 | 2016-07-20 | 三重型能源装备有限公司 | Torsion shaft device, gearbox and wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |