CN205315714U - Axle head seal structure suitable for vertical planetary gear case - Google Patents
Axle head seal structure suitable for vertical planetary gear case Download PDFInfo
- Publication number
- CN205315714U CN205315714U CN201620090237.8U CN201620090237U CN205315714U CN 205315714 U CN205315714 U CN 205315714U CN 201620090237 U CN201620090237 U CN 201620090237U CN 205315714 U CN205315714 U CN 205315714U
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- Prior art keywords
- ring
- planetary gear
- vertical planetary
- output shaft
- gear box
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Abstract
The utility model provides an axle head seal structure suitable for vertical planetary gear case which characterized in that: it include from interior to exterior in proper order the suit at the labyrinth seals who forms by the combination of rotating ring and quiet ring of the overhanging end of vertical planetary gear case output shaft, the rotating ring locks in the output shaft through the nut that is located the lower extreme, the upper end of rotating ring contacts with bearing inner race's lower extreme, the mutual nevertheless contactless that interlocks of terminal surface processed annular is down followed to the up end processed annular of quiet ring and the ring that upper portion excircle cylinder set up in the rotating ring, and component labyrinth seals is vice, the lower extreme and the interior disc rigid coupling of oil receiving box bottom processed centre bore of quiet ring are in the same place, oil receiving box's top combines together through the lower extreme of connecting piece with the gear box box, installs oil return pipe in oil receiving box's bottom.
Description
Technical field
The utility model relates to vertical shaft wind-driven generator vertical planetary gear box equipment, relates to a kind of sealing structure of shaft end being applicable to vertical planetary gear box specifically. The effect of sealing is exactly not only lower swab case as vertical planetary gear box, and the output shaft neck place of vertical epicyclic gearbox seals, the sealing effect of output shaft is directly had influence on the normal lubrication of whole wheel casing by it, directly determines the safe operation of vertical axis aerogenerator group.
Background technology
At present, at home and abroad in vertical planetary gear box industry, the output shaft of epicyclic gearbox is sealed by general employing " outside framework oil seal ". for middle high-power vertical shaft wind power generating set, owing to vertical planetary gear box is arranged on the height up to more than ten meter Nai Zhi tens of meters in the air, there are sand and dust, salt fog, all severe weather condition such as high/low temperature and radiation, therefore " outside framework oil seal " usually life-span long causes vertical planetary gear box output shaft seepage oil, and due to vertical planetary gear box install position higher, early seepage oil often can not Timeliness coverage (even if find maintain and replace also compare waste time and energy), thus cause wheel casing component (such as gear, bearing etc.) gradually because lacking oil and can not obtaining enough lubrications and lose efficacy.
In addition, what the vertical planetary speed reducer of domestic application on nuclear power generating equipment and large-scale cement mill equipment adopted is a kind of " high-order oil sealing " (see accompanying drawing 1,2), spring ring 1 ', nonmetal sealing-ring 2 ', high-order oil cover 4 ' composition sealing system, wherein high-order oil cover 4 ' be bolted to cabinet base 6 ' upper and with the bonding surface of sealant sealing and base 6 ', output shaft 3 ' adopts key connecting with tubular shaft 5 ', and nonmetal sealing-ring 2 ' is pressed on high-order oil cover 4 ' by spring ring 1 '. By the sealing of nonmetal sealing-ring 2 ' between high-order oil cover 4 ' and tubular shaft 5 ', the reason output shaft 3 ' purchased due to entirety knot can not seepage oil with tubular shaft 5 ' combination section. And the highest oil level can not higher than nonmetal sealing-ring 2 ' in wheel casing. Therefore ensure that output shaft 3 ' there will not be the situation of seepage oil by the seal gum between nonmetal sealing-ring 2 ' and high position oil cover 4 ' and base 6 '.
But vertical axis aerogenerator group vertical planetary gear box is existed following shortcoming by this kind of sealing: if 1. with this sealed structure, former vertical planetary gear box size and weight increase excessive, do not meet lightweight requirements, and the kernel component spring ring 1 ' of this sealing is expensive with nonmetal sealing-ring 2 ', the competitive power that cost reduces product can be improved; 2. still having non-metal workpiece in this sealed structure, life-time service also there will be the phenomenon of premature failure as outside framework oil seal.
Summary of the invention
The utility model object provide for weak point existing in above-mentioned prior art just a kind of with strong points, seal reliable, cheap, maintenance cycle length and change the diameter of axle end sealed structure being applicable to vertical planetary gear box easily.
The purpose of this utility model realizes by following measure:
The sealing structure of shaft end being applicable to vertical planetary gear box of the present utility model comprises the labyrinth seal combined by dynamic ring and quiet ring being sleeved on vertical planetary gear box output shaft overhanging end (journal end) from the inside to the outside successively, described dynamic ring is by the nut locking that is positioned at lower end on output shaft, and the upper end of described dynamic ring contacts with the lower end of bearing inner ring; The annular groove that the ring that the annular groove that the upper surface of quiet ring processes is arranged with top external cylindrical surface in dynamic ring processes along lower surface is interlaced but does not contact, the centre hole inner headed face processed bottom formation labyrinth seal pair, the lower end of described quiet ring and swab case is fixed together; The top of described swab case is combined with the lower end of gear case body by web member, is provided with oil returning tube in the bottom of swab case.
The wear ring that top external cylindrical surface in dynamic ring described in the utility model is arranged is along in umbrella-shaped structure, maximum external diameter is greater than the diameter of bore of the transparent cover directly over being positioned at.
The beneficial effects of the utility model are as follows:
1, due to the utility model change prior art sealed material nonmetal be metal, it is to increase weathering resistance and reliability;
2, compared with existing outside framework oil seal, this novel seal can satisfactorily realize the function of " oil extraction ";
3, compared with high-order oil sealing, the utility model is cheap, maintenance expense is low, be easy to making;
4, in addition, the utility model is compared with outside framework oil seal, and the maintenance cycle significantly increases, and compared with high-order oil sealing, changes oil sealing more convenient.
Accompanying drawing explanation
Fig. 1 is the structure iron of the high-order oil sealing of prior art.
Sequence number in Fig. 1: the high-order oil cover 5 ' tubular shaft 6 ' base of 1 ' spring ring 2 ' nonmetal sealing-ring 3 ' output shaft 4 '.
Fig. 2 is D ' position partial enlargement figure in Fig. 1.
Fig. 3 is vertical axis wind electric vertical planetary gear box general shape figure.
Fig. 4 is vertical axis wind electric vertical planetary gear box output shaft place oil sealing orthographic plan.
Fig. 5 is D position amplification view in Fig. 4.
Sequence number in Fig. 3,4,5: 1 screw 2 swab case 3 moves ring 4 quiet ring 5 output shaft 6 nut 7 gear case body.
Embodiment
The utility model is further described below with reference to embodiment (accompanying drawing):
As shown in Fig. 3,4,5, the sealing structure of shaft end being applicable to vertical planetary gear box of the present utility model comprises the labyrinth seal combined by dynamic ring 3 and quiet ring 4 being sleeved on vertical planetary gear box output shaft 5 overhanging end (journal end) from the inside to the outside successively, described dynamic ring 3 is locked on output shaft 5 by being positioned at the nut 6 of lower end, and the described upper end of dynamic ring 3 contacts with the lower end of bearing inner ring;The annular groove that the ring that the annular groove that the upper surface of described quiet ring 4 processes is arranged with top external cylindrical surface in dynamic ring 3 processes along lower surface is interlaced but does not contact, and forms labyrinth seal secondary; More specifically, the wear ring that described top external cylindrical surface in dynamic ring 3 is arranged is along in umbrella-shaped structure, maximum external diameter is greater than the diameter of bore of the transparent cover directly over being positioned at; The centre hole inner headed face processed bottom the lower end of described quiet ring 4 and swab case 2 is fixed together; The top of described swab case 2 is combined by the lower end of web member with wheel box body 7, is provided with oil returning tube in the bottom of swab case 2.
Principle of work of the present utility model is as follows:
When vertical planetary gear box operates, dynamic ring 3 rotates with output shaft 5 simultaneously, and quiet ring 4 then maintains static, and utilizes the little play of the dynamic concaveconvex structure (i.e. labyrinth structure) formed between ring 3 and quiet ring 4 to realize sealing.
Due to the vertical planetary gear box employing mechanical lubrication of the utility model application, the mode of circulation fuel feeding, therefore swab case 2 is designed with the concaveconvex structure that enough big cavity volume is formed with quiet ring 4 lower than dynamic ring 3 in the running with the lubricant level line ensured in swab case 2, thus ensure that lubricating oil can not leak to outside casing from concaveconvex structure.
The maximum external diameter on umbrella shape ring edge that top external cylindrical surface is arranged in dynamic ring 3 be greater than the object of the diameter of bore of the transparent cover directly over being positioned at be in order to and ensure that all oil flow down from transparent cover can be got rid of away and be unlikely to enter into labyrinth seal by " umbrella " shape structure.
Due to the inclined pendulum of output shaft during running and the existence of the processing installation error of labyrinth seal concaveconvex structure, the gap between the labyrinth seal of design should be enough big thus mutually collide when being unlikely to cause running.
The vertical axis aerogenerator applied due to the utility model be in high-power unit, the vertical planetary gear box supporting with it considers to adopt the lubrication mode of mechanical lubrication, circulation fuel feeding for aspects such as heat radiation, life-span and reliabilities, and it is arranged on the lowermost end of vertical planetary gear box because of the utility model, therefore the utility model also should be drained by the lubricating oil bottom vertical planetary gear box so that recycle timely and conveniently, therefore the oil returning tube having logical footpath big as far as possible at the bottom welding of swab case 2 and oil return flange are to realize this function (see Fig. 3,4).
Claims (2)
1. one kind is applicable to the sealing structure of shaft end of vertical planetary gear box, it is characterized in that: it comprises the labyrinth seal combined by dynamic ring and quiet ring being sleeved on vertical planetary gear box output shaft overhanging end from the inside to the outside successively, described dynamic ring is locked on output shaft by being positioned at the nut (6) of lower end, and the upper end of described dynamic ring contacts with the lower end of bearing inner ring; The annular groove that the ring that the annular groove that the upper surface of quiet ring processes is arranged with top external cylindrical surface in dynamic ring processes along lower surface is interlaced but does not contact, the centre hole inner headed face processed bottom formation labyrinth seal pair, the lower end of described quiet ring and swab case is fixed together; The top of described swab case is combined with the lower end of gear case body by web member, is provided with oil returning tube in the bottom of swab case.
2. the sealing structure of shaft end being applicable to vertical planetary gear box according to claim 1, it is characterised in that: the wear ring that top external cylindrical surface is arranged in dynamic ring is along in umbrella-shaped structure, maximum external diameter is greater than the diameter of bore of the transparent cover directly over being positioned at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620090237.8U CN205315714U (en) | 2016-01-29 | 2016-01-29 | Axle head seal structure suitable for vertical planetary gear case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620090237.8U CN205315714U (en) | 2016-01-29 | 2016-01-29 | Axle head seal structure suitable for vertical planetary gear case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315714U true CN205315714U (en) | 2016-06-15 |
Family
ID=56186882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620090237.8U Expired - Fee Related CN205315714U (en) | 2016-01-29 | 2016-01-29 | Axle head seal structure suitable for vertical planetary gear case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315714U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799444A (en) * | 2018-08-30 | 2018-11-13 | 浙江工业大学 | Planetary differential radial double mechanical seal |
| CN109340355A (en) * | 2018-08-30 | 2019-02-15 | 南京高精齿轮集团有限公司 | Vertical planetary gear box and its shunt non-contact seal structure |
| CN111888995A (en) * | 2020-08-26 | 2020-11-06 | 江阴市宝利机械制造有限公司 | Vertical mixing equipment |
| CN112324911A (en) * | 2020-11-13 | 2021-02-05 | 中国船舶重工集团公司第七0三研究所 | Novel perpendicular cantilever seal structure |
-
2016
- 2016-01-29 CN CN201620090237.8U patent/CN205315714U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799444A (en) * | 2018-08-30 | 2018-11-13 | 浙江工业大学 | Planetary differential radial double mechanical seal |
| CN109340355A (en) * | 2018-08-30 | 2019-02-15 | 南京高精齿轮集团有限公司 | Vertical planetary gear box and its shunt non-contact seal structure |
| CN108799444B (en) * | 2018-08-30 | 2024-03-26 | 浙江工业大学 | Planetary differential radial double-end-face mechanical seal |
| CN111888995A (en) * | 2020-08-26 | 2020-11-06 | 江阴市宝利机械制造有限公司 | Vertical mixing equipment |
| CN111888995B (en) * | 2020-08-26 | 2022-03-29 | 江阴市宝利机械制造有限公司 | Vertical mixing equipment |
| CN112324911A (en) * | 2020-11-13 | 2021-02-05 | 中国船舶重工集团公司第七0三研究所 | Novel perpendicular cantilever seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20170129 |