CN201787067U - Combined sealing mechanism used for underwater pump power synthesizing gearbox - Google Patents
Combined sealing mechanism used for underwater pump power synthesizing gearbox Download PDFInfo
- Publication number
- CN201787067U CN201787067U CN2010202140812U CN201020214081U CN201787067U CN 201787067 U CN201787067 U CN 201787067U CN 2010202140812 U CN2010202140812 U CN 2010202140812U CN 201020214081 U CN201020214081 U CN 201020214081U CN 201787067 U CN201787067 U CN 201787067U
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- output shaft
- seal
- framework oil
- water
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Abstract
The utility model relates to a combined sealing mechanism, in particular to a combined sealing mechanism used for an underwater pump power synthesizing gearbox, which comprises a box body. An output shaft is arranged in the box body and sleeved with an output gear, the output shaft and the box body are sealed through the combined sealing mechanism, the combined sealing mechanism comprises two framework oil seal rings, a water seal ring, a front space ring and a rear space ring, the two framework oil seal rings and the water seal ring are sleeved on the output shaft, the front space ring is clamped between the framework oil seal rings, and the rear space ring is clamped among the framework oil seal ring and the water seal ring. The combined sealing mechanism adopting combined sealing components realizes reliable sealing at the output shaft of the gearbox and reduces abrasion of a sealing surface.
Description
Technical field
The utility model is an a kind of combination seal mechanism, particularly a kind of combination seal mechanism that is used for the synthetic gear-box of submersible pump power.
Background technique
Strand suction formula and bucket-wheel suction dredger are to use engineering ship more widely at present in enclosing extra large hydraulic reclamation, harbour and training of river channel engineering in the prior art, it mainly utilizes reamer cutting that is installed in the crane span structure front end and rock, the silt that stirs river bed or seabed, form the mud of big concentration, and then with the underwater dredge pump that is installed on the crane span structure mud is sucted, by dredge pump in the cabin mud is discharged to the solid accumulation field again.Its working procedure such as mud, dump of dredging, transport can one-time continuous be finished, and are a kind of efficient height, the mechanical device of dredging under water that cost is low.Dredge pump is owing to be installed in the crane span structure front end under water, long-term at the very high underwater operation of concentration of hydraulic mixture, the smaller dredger of tradition generally adopts the separate unit oil motor to be installed in and directly drives dredge pump under water under water, the dredger that power ratio is bigger (more than the 2500 sides) motoring that adopt are installed in the above reduction gear box of the crane span structure water surface more, electric axis system by about 20 meters drives dredge pump work under water then, this cover electric axis system involves great expense, owing to be subjected to the crane span structure deformation effect, intermediate support place bearing damages easily, and because the driving component major part is rotated in seawater, churning loss is bigger.
Summary of the invention
The utility model mainly is to solve the deficiencies in the prior art, and a kind of combination seal mechanism that is used for the synthetic gear-box of submersible pump power is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of combination seal mechanism that is used for the synthetic gear-box of submersible pump power, comprise casing, be provided with output shaft in the casing, be with output gear on the described output shaft, seal mutually by combination seal mechanism between described output shaft and casing, described combination seal mechanism comprises outside framework oil seal circle, water seal circle, preceding spacer ring and back spacer ring, described outside framework oil seal circle and water seal snare are on output shaft, be with two outside framework oil seal circles on the described output shaft, be connected with preceding spacer ring between described outside framework oil seal circle, be connected with the back spacer ring between described outside framework oil seal circle and the water seal circle.Described gear-box output end cap and output shaft contacting point are equipped with the combination seal of outside framework oil seal and water seal composition, and the water seal peripheral hardware is in respect of the high-pressure flush space, and to prevent mud wearing and tearing sealed faying face, this casing top design has the hydraulic fluid port that is communicated with gravity oil tank.The combination seal parts mainly are made of 2 outside framework oil seals, preceding spacer ring, back spacer ring, water seal, rear seal-cover, end cap, described 2 outside framework oil seals are installed in end cap near the gear-box inboard, the centre separates with preceding spacer ring, water seal is installed in the end cap middle part, separate with the back spacer ring between water seal and the outside framework oil seal, design has certain water flowing space between water seal and the rear seal-cover, adopts bigger Spielpassung between rear seal-cover and the output shaft.
As preferably, be with end cap on the described output shaft, described end cap and casing are fastened, and described outside framework oil seal circle, water seal circle, preceding spacer ring and back spacer ring contact with end cap, the sidewall of described end cap is provided with rear seal-cover, and described rear seal-cover fixes with output shaft and contacts.
As preferably, described end cap is provided with the high pressure water interface, and what be connected with the high pressure water interface is the water flowing space, and described water flowing space contacts with the water seal circle
Therefore, the combination seal mechanism that is used for the synthetic gear-box of submersible pump power that the utility model provides adopts the combination seal parts, has solved gearbox output shaft place reliable sealing and has reduced the sealing surface wear problem.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structure for amplifying schematic representation of B portion among Fig. 1.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as depicted in figs. 1 and 2, a kind of combination seal mechanism that is used for the synthetic gear-box of submersible pump power, comprise casing 1, be provided with output shaft 2 in the casing 1, be with output gear 3 on the described output shaft 2,1 of described output shaft 2 and casing seal mutually by combination seal mechanism, described combination seal mechanism comprises outside framework oil seal circle 7, water seal circle 8, preceding spacer ring 9 and back spacer ring 10, described outside framework oil seal circle 7 and water seal circle 8 are enclosed within on the output shaft 2, be with two outside framework oil seal circles 7 on the described output shaft 2,7 on described outside framework oil seal circle is connected with preceding spacer ring 9, be connected with back spacer ring 10 between described outside framework oil seal circle 7 and the water seal circle 8, be with end cap 11 on the described output shaft 2, described end cap 11 is fastened with casing 1, described outside framework oil seal circle 7, water seal circle 8, preceding spacer ring 9 and back spacer ring 10 contact with end cap 11, the sidewall of described end cap 11 is provided with rear seal-cover 12, described rear seal-cover 12 fixes with output shaft 2 and contacts, described end cap 11 is provided with high pressure water interface 13, what be connected with high pressure water interface 13 is water flowing space 14, and described water flowing space 14 contacts with water seal circle 8.
Working principle: adopt skeleton oil seal between input shaft and the casing, design has combination sealing arrangement between described gear-box output end cap and the output shaft, and this casing top design has the hydraulic fluid port that is communicated with gravity oil tank.Described 2 outside framework oil seal circles are installed in end cap near the gear-box inboard; end cap inboard employing cover plate or step are spacing; separate with preceding spacer ring in the middle of 2 outside framework oil seals; the water seal circle is installed in the end cap middle part; separate with the back spacer ring between water seal circle and the outside framework oil seal circle; have the lubricant grease inlet on back spacer ring middle part and the end cap; design has certain water flowing space between water seal circle and the rear seal-cover; adopt bigger Spielpassung between rear seal-cover and the output shaft; fill with lubricating grease between described 2 outside framework oil seal circles and between 2 outside framework oil seal circles and the water seal circle during assembling; the high pressure clear water injects between water seal circle and rear seal-cover during work; can wash muddy seawater on the one hand; prevent grains of sand wearing and tearing sealing contact surface; can reduce in the use seawater on the other hand to the corrosive action of sealing surface; since in the oil sealing of twice outside framework oil seal is arranged; the protective action of high pressure clear water is arranged, so can realize reliable sealing outward.
Claims (3)
1. one kind is used for the combination seal mechanism that submersible pump power synthesizes gear-box, it is characterized in that: comprise casing (1), be provided with output shaft (2) in the casing (1), be with output gear (3) on the described output shaft (2), seal mutually by combination seal mechanism between described output shaft (2) and casing (1), described combination seal mechanism comprises outside framework oil seal circle (7), water seal circle (8), preceding spacer ring (9) and back spacer ring (10), described outside framework oil seal circle (7) and water seal circle (8) are enclosed within on the output shaft (2), be with two outside framework oil seal circles (7) on the described output shaft (2), be connected with preceding spacer ring (9) between described outside framework oil seal circle (7), be connected with back spacer ring (10) between described outside framework oil seal circle (7) and the water seal circle (8).
2. the combination seal mechanism that is used for the synthetic gear-box of submersible pump power according to claim 1, it is characterized in that: be with end cap (11) on the described output shaft (2), described end cap (11) is fastened with casing (1), described outside framework oil seal circle (7), water seal circle (8), preceding spacer ring (9) and back spacer ring (10) contact with end cap (11), the sidewall of described end cap (11) is provided with rear seal-cover (12), and described rear seal-cover (12) fixes with output shaft (2) and contacts.
3. the combination seal mechanism that is used for the synthetic gear-box of submersible pump power according to claim 2, it is characterized in that: described end cap (11) is provided with high pressure water interface (13), what be connected with high pressure water interface (13) is water flowing space (14), and described water flowing space (14) contacts with water seal circle (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202140812U CN201787067U (en) | 2010-06-01 | 2010-06-01 | Combined sealing mechanism used for underwater pump power synthesizing gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202140812U CN201787067U (en) | 2010-06-01 | 2010-06-01 | Combined sealing mechanism used for underwater pump power synthesizing gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787067U true CN201787067U (en) | 2011-04-06 |
Family
ID=43819030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202140812U Expired - Lifetime CN201787067U (en) | 2010-06-01 | 2010-06-01 | Combined sealing mechanism used for underwater pump power synthesizing gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787067U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527492A (en) * | 2013-05-08 | 2014-01-22 | 江苏大学 | Novel two-stage impeller ceramic pump |
-
2010
- 2010-06-01 CN CN2010202140812U patent/CN201787067U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527492A (en) * | 2013-05-08 | 2014-01-22 | 江苏大学 | Novel two-stage impeller ceramic pump |
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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 |
Granted publication date: 20110406 |
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| CX01 | Expiry of patent term |