CN205186493U - But variable pitch propeller's pitch -changing mechanism - Google Patents
But variable pitch propeller's pitch -changing mechanism Download PDFInfo
- Publication number
- CN205186493U CN205186493U CN201520972575.XU CN201520972575U CN205186493U CN 205186493 U CN205186493 U CN 205186493U CN 201520972575 U CN201520972575 U CN 201520972575U CN 205186493 U CN205186493 U CN 205186493U
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- China
- Prior art keywords
- piston
- pitch
- screw
- changing mechanism
- pull bar
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Abstract
The utility model provides a but variable pitch propeller's pitch -changing mechanism, including hydraulic pressure nut, backplate, screw, oil inlet, the hydro -cylinder body, taper sleeve, bush, sealing washer, clamp plate, piston nut, stopper screw, stopper, piston, piston screw, sealing washer, connecting screw, axle and push -and -pull rod, the hydro -cylinder inner piston is that dependence is joined in marriage the oily hydraulic pressure force that oily mechanism sent here and is done exercises the piston middle finishing has a slant hole and the communicating pressure of oil pipe pit oil passageway, and it will promote the piston and move to the boat bow in will coming from the hydro -cylinder at oil pipe's the leading -in piston rear portion of pressure oil, makes the paddle rotate to the pitch angle orientation of backing a car to reducing positive car pitch angle orientation. The utility model is suitable for a some special boats and ships are controlled effectually.
Description
Technical field
The utility model relates to pitch-changing mechanism field, refers more particularly to a kind of pitch-changing mechanism of adjustable pitch propeller.
Background technology
At present, for the minor axis mooring oceangoing ship not having tween drive shaft, be difficult to arrange its pitch-changing mechanism, meanwhile, also there is very large problem in the installation of oil cylinder.Therefore, we are necessary to improve so a kind of structure, to overcome above-mentioned defect.
Utility model content
The purpose of this utility model is to provide a kind of pitch-changing mechanism of adjustable pitch propeller.
The technical scheme that the utility model adopts for its technical matters of solution is:
A kind of pitch-changing mechanism of adjustable pitch propeller, comprise hydraulic screw nut, backplate, screw, oil inlet, cylinder body, tapered sleeve, lining, seal ring, pressing plate, piston unt, limiting stopper screw, limiting stopper, piston, piston blot, seal ring, attaching screw, axle and pull bar, described pitch-changing mechanism middle part is provided with pull bar, the described upper and lower both sides of pull bar centre portion are connected with described lining, described pull bar end has tightened described piston unt, the described piston blot of described piston is fixed on described piston unt, described piston blot is positioned at below described pull bar end, be positioned at above described piston unt and be provided with described limiting stopper on the left of described piston, described limiting stopper is fixed on described piston by described limiting stopper screw, the upper and lower both sides of described pull bar are all connected with described axle, the cylinder block of described pitch-changing mechanism press-fits on the shaft by described tapered sleeve, described tapered sleeve is positioned at above described axle, described cylinder block is positioned at above described axle, described cylinder block lower left is provided with a hydraulic fluid port, oil port is provided with described hydraulic screw nut and seals, described cylinder block left hand external is provided with the backplate for fixing described hydraulic screw nut and described cylinder body, hydraulic screw nut is close on the left of described backplate, right side is fixed on above described cylinder block by described screw, described cylinder block is provided with the hydraulic fluid port of two opening upwards, described seal ring is provided with on the right side of described cylinder block, the described pressing plate for isolating is provided with on the right side of described seal ring, described seal ring is provided with on the right side of described tapered sleeve, described pull bar lower right-hand side is provided with the attaching screw for fixing described axle, described below lining is provided with the leakage that seal ring prevents liquid equally.
Further, the high strength tension that described hydraulic screw nut produces through oil cylinder inside, makes bolt produce elastic deformation, by the collar on hydraulic efficiency nut, by locked with bolts on the position of elongating.
Further, described pull bar end diameter is less than pull bar front end place diameter.
Further, be positioned at two hydraulic fluid ports of described cylinder block opening upwards, its end and described tapered sleeve are linked.
Further, described seal ring is a kind of cross section is circular rubber ring.
Further, described backplate is L-type structure, and its bending place is provided with arcuate structure.
Further, the specification of described screw, limiting stopper screw, piston blot and attaching screw is all not identical.
Further, an oblique hole is obliquely provided with in described piston.
For the boats and ships not having tween drive shaft, pitch-changing mechanism change is arranged on prop shaft, and because prop shaft needs to wear with regard in ship by stern by sternpost and piping, therefore oil cylinder can not make the mode that flange connects with stern tube shaft, but makes pressing type.Oil cylinder inner carrier is that the oil liquid pressure relying on oil distribution mechanism to send here moves, the pressure oil passage that an oblique hole communicates with oil pipe pit is processed with in described piston, pressure oil from oil pipe imports in the oil cylinder at piston rear portion by it, promote piston to move to boat bow, make blade to reduction ahead pitch angular direction and rotate to astern pitch angular direction.
The utility model has the advantage of:
1. be applicable to some boats and ships without intermediate shaft system, separately it can carry out displacement navigation normally.
2. effectively must change vessel motion direction, precision is accurate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pitch-changing mechanism of a kind of adjustable pitch propeller that the utility model proposes.
Numeral and the corresponding component title represented by letter in figure:
1, hydraulic screw nut 2, backplate 3, screw 4, oil inlet 5, cylinder body 6, tapered sleeve 7, lining 8, seal ring 9, pressing plate 10, piston unt 11, limiting stopper screw 12, limiting stopper 13, piston 14, piston blot 15, seal ring 16, attaching screw 17, axle 18, pull bar.
Detailed description of the invention
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with diagram and specific embodiment, setting forth the utility model further.
As shown in Figure 1, the pitch-changing mechanism of a kind of adjustable pitch propeller that the utility model proposes, comprise hydraulic screw nut 1, backplate 2, screw 3, oil inlet 4, cylinder body 5, tapered sleeve 6, lining 7, seal ring 8, pressing plate 9, piston unt 10, limiting stopper screw 11, limiting stopper 12, piston 13, piston blot 14, seal ring 15, attaching screw 16, axle 17 and pull bar 18, described pitch-changing mechanism middle part is provided with pull bar 18, the upper and lower both sides of described pull bar 18 centre portion are connected with described lining 7, described pull bar 18 end has tightened described piston unt 10, the described piston blot 14 of described piston 13 is fixed on described piston unt 10, described piston blot 14 is positioned at below described pull bar 18 end, be positioned at above described piston unt 10 and be provided with described limiting stopper 12 on the left of described piston 13, described limiting stopper 12 is fixed on described piston 13 by described limiting stopper screw 11, described pull bar about 18 both sides are all connected with described axle 17, the cylinder block 5 of described pitch-changing mechanism is fitted on described axle 17 by described tapered sleeve 6, described tapered sleeve 6 is positioned at above described axle 17, described cylinder block 5 is positioned at above described axle 17, described cylinder block 5 lower left is provided with a hydraulic fluid port, oil port is provided with described hydraulic screw nut 1 and seals, described cylinder block 5 left hand external is provided with for the backplate 2 of fixing described hydraulic screw nut 1 with described cylinder body, hydraulic screw nut 1 is close on the left of described backplate 2, right side is fixed on above described cylinder block 5 by described screw 3, described cylinder block 5 is provided with the hydraulic fluid port of two opening upwards, described seal ring 8 is provided with on the right side of described cylinder block 5, the described pressing plate 9 for isolating is provided with on the right side of described seal ring 8, described seal ring 8 is provided with on the right side of described tapered sleeve 6, described pull bar 18 lower right-hand side is provided with the attaching screw 16 for fixing described axle, described below lining 7 is provided with the leakage that seal ring 8 prevents liquid equally.
Further, the high strength tension that described hydraulic screw nut 1 produces through oil cylinder inside, makes bolt produce elastic deformation, by the collar on hydraulic efficiency nut, by locked with bolts on the position of elongating.
Further, described pull bar 18 end diameter is less than pull bar 18 front end place diameter.
Further, be positioned at two hydraulic fluid ports of described cylinder block 5 opening upwards, its end and described tapered sleeve 6 are linked.
Further, described seal ring 8 is a kind of cross section is circular rubber ring.
Further, described backplate 2 is L-type structure, and its bending place is provided with arcuate structure.
Further, the specification of described screw 3, limiting stopper screw 11, piston blot 14 and attaching screw 16 is all not identical.
Further, an oblique hole is obliquely provided with in described piston 13.
More than show and describe groundwork of the present utility model, principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. the pitch-changing mechanism of an adjustable pitch propeller, comprise hydraulic screw nut, backplate, screw, oil inlet, cylinder body, tapered sleeve, lining, seal ring, pressing plate, piston unt, limiting stopper screw, limiting stopper, piston, piston blot, seal ring, attaching screw, axle and pull bar, it is characterized in that: described pitch-changing mechanism middle part is provided with pull bar, the described upper and lower both sides of pull bar centre portion are connected with described lining, described pull bar end has tightened described piston unt, the described piston blot of described piston is fixed on described piston unt, described piston blot is positioned at below described pull bar end, be positioned at above described piston unt and be provided with described limiting stopper on the left of described piston, described limiting stopper is fixed on described piston by described limiting stopper screw, the upper and lower both sides of described pull bar are all connected with described axle, the cylinder block of described pitch-changing mechanism press-fits on the shaft by described tapered sleeve, described tapered sleeve is positioned at above described axle, described cylinder block is positioned at above described axle, described cylinder block lower left is provided with a hydraulic fluid port, oil port is provided with described hydraulic screw nut and seals, described cylinder block left hand external is provided with the backplate for fixing described hydraulic screw nut and described cylinder body, hydraulic screw nut is close on the left of described backplate, right side is fixed on above described cylinder block by described screw, described cylinder block is provided with the hydraulic fluid port of two opening upwards, described seal ring is provided with on the right side of described cylinder block, the described pressing plate for isolating is provided with on the right side of described seal ring, described seal ring is provided with on the right side of described tapered sleeve, described pull bar lower right-hand side is provided with the attaching screw for fixing described axle, described below lining is provided with the leakage that seal ring prevents liquid equally.
2. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, it is characterized in that: the high strength tension that described hydraulic screw nut produces through oil cylinder inside, bolt is made to produce elastic deformation, by the collar on hydraulic efficiency nut, by locked with bolts on the position of elongating.
3. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, is characterized in that: described pull bar end diameter is less than pull bar front end place diameter.
4. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, is characterized in that: two hydraulic fluid ports being positioned at described cylinder block opening upwards, its end and described tapered sleeve are linked.
5. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, is characterized in that: described seal ring is a kind of cross section is circular rubber ring.
6. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, is characterized in that: described backplate is L-type structure, and its bending place is provided with arcuate structure.
7. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, is characterized in that: the specification of described screw, limiting stopper screw, piston blot and attaching screw is all not identical.
8. the pitch-changing mechanism of a kind of adjustable pitch propeller according to claim 1, is characterized in that: be provided with an oblique hole obliquely in described piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972575.XU CN205186493U (en) | 2015-11-30 | 2015-11-30 | But variable pitch propeller's pitch -changing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972575.XU CN205186493U (en) | 2015-11-30 | 2015-11-30 | But variable pitch propeller's pitch -changing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205186493U true CN205186493U (en) | 2016-04-27 |
Family
ID=55779513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520972575.XU Expired - Fee Related CN205186493U (en) | 2015-11-30 | 2015-11-30 | But variable pitch propeller's pitch -changing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205186493U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU174818U1 (en) * | 2016-12-16 | 2017-11-03 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России). | ADJUSTABLE ROW SCREW OIL DIGGER |
| CN107640306A (en) * | 2017-08-25 | 2018-01-30 | 珠海磐磊智能科技有限公司 | Marine propulsion, ship and its travel control method |
-
2015
- 2015-11-30 CN CN201520972575.XU patent/CN205186493U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU174818U1 (en) * | 2016-12-16 | 2017-11-03 | Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России). | ADJUSTABLE ROW SCREW OIL DIGGER |
| CN107640306A (en) * | 2017-08-25 | 2018-01-30 | 珠海磐磊智能科技有限公司 | Marine propulsion, ship and its travel control method |
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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 |
Granted publication date: 20160427 Termination date: 20161130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |