CN201225384Y - Hydraulic power speed variator - Google Patents
Hydraulic power speed variator Download PDFInfo
- Publication number
- CN201225384Y CN201225384Y CNU2008200409672U CN200820040967U CN201225384Y CN 201225384 Y CN201225384 Y CN 201225384Y CN U2008200409672 U CNU2008200409672 U CN U2008200409672U CN 200820040967 U CN200820040967 U CN 200820040967U CN 201225384 Y CN201225384 Y CN 201225384Y
- Authority
- CN
- China
- Prior art keywords
- gear
- shaft
- oil
- speed shaft
- sun gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0479—Gears or bearings on planet carriers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
- Retarders (AREA)
Abstract
The utility model discloses a hydropower variable speed gear which comprises a tank body, a high speed shaft, a sun gear, a planetary gear train, a planet carrier, an internal gear, an external gear, a low speed shaft, a left through cover and a right through cover, wherein the high speed shaft and the sun gear are connected by a floating internal tooth sleeve, the external gear is fixed on the tank body, the internal gear and the external gear are connected in a floating way, by increasing the gap of the internal gear and the plastic deformation of the floating tooth sleeve, the load between each planetary gear is enabled to be equalized, the performance index of the variable speed gear is greatly improved, and the efficiency is improved; the tank body is composed of an upper tank body and a lower tank body which are welded by cast steel pieces and steel plates to form a composite type, the mounting and the maintenance are convenient, and the assembly, the debugging and field installation and maintenance are convenient; a middle fuel-injection hole is arranged on a fuel-injection globe roof between the sun gear and the low speed shaft, lubricating oil can reach the mesh part of the floating tooth sleeve by a central hole of the sun gear and improves the lubricating condition, and the mesh precision is greatly improved; and the high speed shaft and the low speed shaft increase the non-contacting mechanical seal device, reduce the friction of frame work oil seal and ensure that oil is not leaked from the shaft end.
Description
Technical field
The utility model relates to a kind of speed change gear, especially a kind ofly is used for hydroelectric speed change gear.
Background technique
The hydroelectric power system device is made up of water turbine, speed change gear and generator three parts, own noise of water turbine and generator and vibration are bigger, want to reduce the noise and the vibration of whole system, the noise of speed change gear and vibration must be controlled in the small range.Improve the speed change gear mechanical efficiency simultaneously, can improve the hydroelectric power overall system efficiency, effectively reduce hydroelectric cost.Therefore how on hydroelectric installation, to improve the efficient of speed change gear, reduce temperature rise and noise, reduce oil seepage phenomena and become the problem that hydroelectric power industry engineers is paid close attention to.
At present, hydroelectric speed change gear gear-box generally adopts transmission of parallel-axes gears speedup or NGW planetary pinion speed booster driving mechanism.Speed increasing ratio is less than 4 general employing parallel axis hard-tooth surface gear transmission, and speed increasing ratio is greater than 4 general employing NGW planetary pinion transmission.But traditional NGW planetary type gear transmission unit, single-stage generally only adopts sun gear to float, twin-stage or three grades adopt sun gear and planet carrier combination to float, because the disequilibrium of manufacturing tolerance and carrier member, cause actual floating load balancing effect not ideal, cause mechanical efficiency generally only to reach 94%, noise 85dB (A), vibration values≤0.08mm。The NGW planetary type gear transmission unit housing of transmission generally adopts the integrated type casting, because the speed change gear scene of using generally is in the remote mountains area, limited by operating mode and appointed condition, and maintenance is installed in integral housing assembling and setting and on-the-spot lifting, and renewal part is extremely inconvenient.The NGW planetary type gear transmission unit of transmission generally adopts bath lubrication, and churning loss is big, and each point of mesh lubrication effect is not ideal, cause thermal power to rise, the complete machine temperature rise is higher, generally reaches 60 ℃, gear mesh efficiency reduces simultaneously, thus the corresponding reduction of complete machine mechanical efficiency.Speed change gear generally adopts oil sealing sealing, and oil sealing is an easily damaged parts, in case the oil sealing wearing and tearing produce seepage oil, limited by field condition, changes very difficulty of oil sealing.
Summary of the invention
The purpose of this utility model is at the required speed change gear of present hydroelectric power industry, and noise is big, vibration is big, efficient is not high, the practical problem of leakiness oil impregnate, debugging inconvenient maintenance, and a kind of hydraulic generation speed variator is provided.
The technical solution of the utility model: this device comprises casing, high speed shaft, sun gear, planetary gear train, planet carrier, internal gear, external gear, lower velocity shaft, left and right logical lid, technical characteristics is to connect through the internal tooth casing that floats between high speed shaft and the sun gear, external gear is fixed on the casing, and internal gear floats with external gear and is connected.
Described internal gear is by the inside and outside baffle plate axial limiting that is installed on the external gear; Described casing is formed by connecting through bolt by upper and lower casing; Be axially arranged with the center nozzle opening on the oil spout ball top between described sun gear and the lower velocity shaft; The shaft end seal place of described high speed shaft and lower velocity shaft is provided with disc and oil baffle disc respectively, disc and oil baffle disc and about logical cover non-contact and seals.
Advantage of the present utility model is:
(1) adopt sun gear to float and the unsteady combined mechanism of internal gear, by increasing the plastic deformation of internal gear gap and unsteady tooth cover, make the load equalization between each planet wheel, improve the performance index of speed change gear greatly, the single-stage mechanical efficiency reaches 99.5%, temperature rise 30K, noise 75dB (A), vibration values≤0.03mm.
(2) casing is updated to upper and lower casing by the cylinder integrated type of conventional cast and adopts Cast Steel and steel plate soldering group box-like, and installation and maintenance are convenient, is convenient to assembling and setting and on-the-spot maintenance is installed.
(3) the center nozzle opening is set up on the top of the oil spout ball between sun gear and the lower velocity shaft, make circulating lubricating oil arrive the tooth cover engagement place of floating by the sun gear center hole, improved the lubricating condition of unsteady tooth cover greatly, make the unsteady tooth cover accuracy of mesh improve greatly, guarantee that sun gear floating load balancing effect is better.
(4) high speed shaft, lower velocity shaft have increased the noncontact seal device, reduce the friction of outside framework oil seal, guarantee that axle head does not leak oil impregnate.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right elevation of Fig. 1.
Among the figure: high speed shaft 1, disc 2, oil sealing 3, a left side is logical covers 4, left shaft holder 5, last tank wall 6, external gear 7, planet axis 8, planet wheel 9, sun gear 10, planet carrier 11, oil spout ball top 12, right bearing seat 13, oil-feed spacer 14, oil sealing 15, right leading to covers 16, oil baffle disc 17, lower velocity shaft 18, upper box 19, lower box 20, internal gear 21, following tank wall 22, the internal tooth casing 23 that floats, back-up ring 24, internal baffle 25, spray bar 26, center oilhole 27, exterior siding 28.
Embodiment
Accompanying drawing discloses a kind of embodiment's of the utility model concrete structure without limitation, and the utility model will be further described below in conjunction with accompanying drawing.
In Fig. 1,2, the utility model comprises upper box 19, lower box 20, high speed shaft 1, the internal tooth casing 23 that floats, sun gear 10, planet wheel 9, external gear 7, internal gear 21, oil spout ball top 12, lower velocity shaft 18.Wherein: high speed shaft 1 floats by the internal tooth casing 23 that floats with sun gear 10 and is connected, and internal gear 21 and 7 unsteady connections of external gear are spacing by the internal baffle 25, the exterior siding 28 that are connected on the external gear, make up to realize that sun gear floats and internal gear floats.Casing is made up of upper box and lower box two-part, upper box 19 is to combine by last tank wall 6 and left shaft holder 5,13 welding of right bearing seat, lower box is to combine by following tank wall 22 and left shaft holder, the welding of right bearing seat, and tank wall is the steel plate weldment, and bearing support is a Cast Steel.This structure adopts Lubricating-oil Station circulating lubrication, and lubricant oil is leaded up to oil-feed spacer 14 and is transported to bearing place on the planet wheel 9 through the planet axis 8 on the planet carriers 11, and two oil sealings 15 are housed on the oil-feed spacer, prevents oil seepage, reduces oil pressure; Another road lubricant oil is sprayed onto the sun gear center hole by the center nozzle opening 27 on oil spout ball top 12, again by the extremely unsteady internal tooth casing engagement place of the hole oil spout of back-up ring 24; Sun gear, planet wheel are by spray bar 26 oil jet lubrications that are welded on the planet carrier.The sealing of high speed axle head is to be used in combination by disc 2 and oil sealing 3, realizes disc 2 and the left logical 4 non-contacts sealing of covering; The sealing of low speed axle head is logically cover 16 and be used in combination the realization noncontact seal with right by oil baffle disc 17.
During concrete enforcement, the combined mechanisms of should guaranteeing that sun gear 10 floats and internal gear 21 floats, gap by increasing gear and the plastic deformation of tooth cover make the load equalization between each planet wheel.
Claims (5)
1, a kind of hydraulic generation speed variator, mainly comprise casing, high speed shaft (1), sun gear (10), planetary gear train, planet carrier (11), internal gear (21), external gear (7), lower velocity shaft (18), left and right logical lid (4) (16), it is characterized in that: connect through the internal tooth casing (23) that floats between high speed shaft (1) and the sun gear (10), external gear (7) is fixed on the casing, and internal gear (21) floats with external gear (7) and is connected.
2, hydraulic generation speed variator according to claim 1 is characterized in that: described internal gear is by inside and outside baffle plate (25) (28) axial limiting that is installed on the external gear.
3, hydraulic generation speed variator according to claim 1 is characterized in that: described casing is formed by connecting through bolt by upper and lower casing (19) (20).
4, hydraulic generation speed variator according to claim 1 is characterized in that: be axially arranged with center nozzle opening (27) on the oil spout ball top (12) between described sun gear (10) and the lower velocity shaft (18).
5, hydraulic generation speed variator according to claim 1, it is characterized in that: the shaft end seal place of described high speed shaft (1) and lower velocity shaft (18) is provided with disc (2) and oil baffle disc (17) respectively, disc and oil baffle disc and left and right logical lid (4) (16) non-contact sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200409672U CN201225384Y (en) | 2008-07-14 | 2008-07-14 | Hydraulic power speed variator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200409672U CN201225384Y (en) | 2008-07-14 | 2008-07-14 | Hydraulic power speed variator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225384Y true CN201225384Y (en) | 2009-04-22 |
Family
ID=40598270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200409672U Expired - Lifetime CN201225384Y (en) | 2008-07-14 | 2008-07-14 | Hydraulic power speed variator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225384Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371987A (en) * | 2022-10-26 | 2022-11-22 | 江苏泰隆减速机股份有限公司 | Precision monitoring and analyzing system and high-power high-precision gearbox |
-
2008
- 2008-07-14 CN CNU2008200409672U patent/CN201225384Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371987A (en) * | 2022-10-26 | 2022-11-22 | 江苏泰隆减速机股份有限公司 | Precision monitoring and analyzing system and high-power high-precision gearbox |
| CN115371987B (en) * | 2022-10-26 | 2023-09-12 | 江苏泰隆减速机股份有限公司 | Precision monitoring analysis system and high-power high-precision gear box |
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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: 20090422 |