CN208699033U - The distance-adjustable oar hub of double-crank transmission - Google Patents
The distance-adjustable oar hub of double-crank transmission Download PDFInfo
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- CN208699033U CN208699033U CN201821009761.3U CN201821009761U CN208699033U CN 208699033 U CN208699033 U CN 208699033U CN 201821009761 U CN201821009761 U CN 201821009761U CN 208699033 U CN208699033 U CN 208699033U
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Abstract
The utility model relates to a kind of distance-adjustable oar hubs of double-crank transmission, forward and backward oil cylinder is respectively arranged in the front and rear portions of propeller hub component, bearer ring is fixedly connected in the blade mounting groove of paddle shell, the blade root sealing group of a set of floating is equipped between blade blade root and bearer ring and paddle shell, blade is rigidly connected by blade root bolt and blade root pin and crank disc, crank disc lower part is set there are two crank-pin, is cased with sliding block on crank-pin；Secondary piston inside preceding oil cylinder passes through respective piston rod with the rear piston inside rear oil cylinder respectively and connects a sliding block, each piston rod is equipped with slide block slot, slide block slot and the sliding block on crank-pin are in mating connection, when rear piston inside the secondary piston of current oil cylinder interior and rear oil cylinder is opposite or moves toward one another, generate the roll adjustment couple to blade, so that with forward and backward piston, connected forward and backward piston rod, axial movement pushes sliding block, it is transferred to crank-pin again, it drives center line of the crank disc together with blade around crank disc to rotate, blade screw pitch is made to change.
Description
Technical field
The utility model relates to the pitch propeller device that a kind of ship power promotes, especially a kind of paddles of pitch propeller device
Hub.
Background technique
Pitch propeller device is widely used in ship domain because of its excellent handling and ship, machine, paddle matching performance.Paddle
Final roll adjustment executing agency of the hub as roll-setting gear, is the core component in tuning for Controllable Pitch Propeller propulsion system, for connecting cardan shaft
With blade, propeller power is passed to blade, and bears hydrodynamic force thrust and resistance suffered by blade.The main structure of propeller hub component
Reliability at part is the key that tuning for Controllable Pitch Propeller, is related to the vitality of tuning for Controllable Pitch Propeller, Ship Power Equipment or even whole ship.Mesh
Before, the suitable power range of domestic pitch propeller device propeller hub is all in 30,000 horse power grades hereinafter, therefore, it is necessary to a kind of new tuning for Controllable Pitch Propeller
Propeller hub structure type to improve the working performance and reliability of propeller hub, and solves 30,000 horse power grades or more without applicable pitch propeller device
Predicament.
Summary of the invention
The utility model is to provide for a kind of distance-adjustable oar hub of double-crank transmission, high-strength for improving the resistance of propeller hub mechanism
The ability and reliability of load are spent, to meet the needs of current ship domain is to high-power pitch propeller device, and then promotes roll adjustment
The power scope of application of paddle device.
To achieve the above object, the technical solution of the utility model is: a kind of distance-adjustable oar hub of double-crank transmission, including
Blade, blade root seal assembly, crank disc, rear piston, rear oil cylinder, paddle shell, secondary piston, preceding oil cylinder, bearer ring, sliding block, crank
Pin, the preceding oil cylinder and rear oil cylinder are respectively arranged and pass through in the front and rear of propeller hub component, the blade mounting groove of paddle shell
It is screwed and connects bearer ring, the blade root sealing group of a set of floating, paddle are equipped between blade blade root and bearer ring and paddle shell
Leaf is rigidly connected by blade root bolt and blade root pin and crank disc, and crank disc and bearer ring connect, every crank disc lower part
If there are two crank-pin, two crank-pins are cased with a sliding block respectively；Inside secondary piston and rear oil cylinder inside the preceding oil cylinder
Rear piston pass through respective piston rod respectively and connect a sliding block, set on each piston rod there are five slide block slot, slide block slot with
Sliding block on the crank-pin of crank disc is in mating connection.
Further, it is equipped between bearer ring by spring below the blade seal disc in the blade root sealing group, blade is close
Closing disk is held against paddle flange bottom surface by spring effect, is additionally provided with latch between bearer ring below blade seal disc, is made
Will not have relative rotation with propeller hub body；Between blade seal disc lateral surface and paddle shell and blade seal disc upper surface and blade
Between be respectively equipped with O-ring seals.
Further, the oil communication of the chamber of the preceding oil cylinder and rear oil cylinder, rear piston rod are connected with propeller hub outer oil pipe, rear oil
The front/back cavity of cylinder passes through two oil pipes respectively and is connected with the front/back cavity of preceding oil cylinder.
Further, the propeller hub component is rigidly connected by shaft loupling bolt and shaft flange pin and paddle shaft flange, for passing
What the torque and propeller for passing main shaft supply propeller generated pushes or pulls on power.
The beneficial effects of the utility model are:
The utility model forms a pair of of power in roll adjustment by using double oil cylinders, double-crank-slide block type rotating vane mechanism
It is even, so that propeller hub mechanism stress equalization, and rotating vane roll adjustment oil pressure is reduced, to improve the working performance of propeller hub mechanism and reliable
Property.
Detailed description of the invention
Fig. 1 is the distance-adjustable oar hub structure longitudinal sectional view of the double-crank transmission of the utility model；
Fig. 2 is the distance-adjustable oar hub structure transverse sectional view of the double-crank transmission of the utility model；
Fig. 3 is the 3 D stereo schematic diagram of propeller hub component in Fig. 1；
Fig. 4 is the 3 D stereo schematic diagram of blade root seal assembly in Fig. 1.
Specific embodiment
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
As shown in Figures 1 to 4, the distance-adjustable oar hub of the double-crank transmission of the utility model, blade 1, blade root bolt 2, leaf
Root seal assembly 3, O-ring seals 3a, blade seal disc 3b, spring 3c, latch 3d, crank disc 4, rear piston 5, rear piston
Bar 6, propeller hub outer oil pipe 7, rear oil cylinder 8, oil pipe 9, paddle shell 10, secondary piston bar 11, secondary piston 12, shaft flange pin 13, propeller hub
Inner oil tube 14, preceding oil cylinder 15, shaft loupling bolt 16, bearer ring 17, blade root pin 18, sliding block 19, crank-pin 20.
The preceding oil cylinder 15 and rear oil cylinder 8 of this propeller hub group are respectively arranged in the front and rear of propeller hub component, in paddle shell 10
1 mounting groove of blade in be threadably secured connection bearer ring 17.The junction of blade 1 has shaft shoulder bearing type.1 leaf of blade
The blade root sealing group 3(that root is equipped with a set of floating is shown in Fig. 4), below the blade seal disc 3b in blade root sealing group 3 with bearer ring
It is equipped between 17 and is held against 1 flange bottom of blade, blade seal disc 3b by spring 3c effect by spring 3c, blade seal disc 3b
It is additionally provided with latch 3d, between bearer ring 17 below so as not to have relative rotation with propeller hub body；On the outside of blade seal disc 3b
O-ring seals 3a is respectively equipped between face and paddle shell 10 between the blade upper surface seal disc 3b and blade 1, two O shapes are close
Seal 3a can prevent hub inner fluid from leaking and external seawater infiltration.Blade 1 passes through blade root bolt 2 and blade root pin 18 and crank disc 4
Rigid connection.Crank disc 4 and bearer ring 17 connect, and every 4 lower part of crank disc sets that there are two crank-pin 20, two crank-pins
20 are cased with a sliding block 19 respectively.
Secondary piston 12 inside preceding oil cylinder 15 connects a sliding block 19 by secondary piston bar 11, the rear work inside rear oil cylinder 8
Plug 5 connects another sliding block 19 by rear piston rod 6, wherein five slide block slots are respectively equipped on forward and backward piston rod 11,6, it is sliding
Block slot and the crank-pin 20 and sliding block 19 of crank disc 4 are in mating connection.In secondary piston 12 and rear oil cylinder 8 inside current oil cylinder 15
When the rear piston 5 in portion is opposite or moves toward one another, the roll adjustment couple to blade 1 is generated, so that be connected with forward and backward piston 12,5
Forward and backward piston rod 11,6 moves axially while pushing sliding block 19, then the crank-pin 20 being transferred on crank disc 4, just drives each
Center line of the crank disc 4 together with blade 1 around crank disc 4 rotates, and 1 screw pitch of blade is made to change.
It is connected to inside the oil circuit of preceding oil cylinder 15 and rear 8 chamber of oil cylinder, propeller hub outer oil pipe 7 is connected with rear piston rod 6, liquid when roll adjustment
Pressure oil after the positive vehicle chamber of oil cylinder 8 and after oil cylinder 8 reversing chamber, and by two oil pipes 9, respectively with the positive vehicle of preceding oil cylinder 15
Chamber is connected with the reversing chamber of preceding oil cylinder 15.
Propeller hub group is rigidly connected by shaft loupling bolt 16 and shaft flange pin 13 and paddle shaft flange, and attachment device transmits main shaft
The push-pull effort that the torque and propeller for supplying propeller generate.
By taking the positive vehicle direction roll adjustment of tuning for Controllable Pitch Propeller as an example, the high pressure coming oil of hydraulic device from propeller hub inner oil tube 14, and through propeller hub outside
The hydraulic fluid port of oil pipe 7 and rear piston rod 6 enters the back cavity of rear oil cylinder 8, and then high pressure oil enters preceding oil by oil pipe 9 again
The ante-chamber of cylinder 15 generates so that the rear piston 5 inside the secondary piston 12 and rear oil cylinder 8 inside preceding oil cylinder 15 be pushed to move toward one another
To the roll adjustment couple of blade 1.At this point, the forward and backward piston rod 11,6 being connected with forward and backward piston 12,5 pushes sliding block 19 to make phase simultaneously
To linear motion, and with movable slider 19, then be transferred to crank-pin 20 with matching, just drive crank disc 4 together with blade 1 around
Crank disc 4 center line increase to screw pitch direction rotation.Oil return then the back cavity of premenstrual oil cylinder 15 and be attached thereto it is logical after
The ante-chamber of oil cylinder 8 enters the oil pocket between inside and outside oil pipe 14,7 from the hydraulic fluid port of propeller hub outer oil pipe 7 and rear piston rod 6, returns to
Positive vehicle direction roll adjustment is consequently formed in hydraulic device.
Claims (4)
1. a kind of distance-adjustable oar hub of double-crank transmission, including blade (1), blade root seal assembly (3), crank disc (4), rear piston
(5), rear oil cylinder (8), paddle shell (10), secondary piston (12), preceding oil cylinder (15), bearer ring (17), sliding block (19), crank-pin
(20), it is characterised in that: the preceding oil cylinder (15) and rear oil cylinder (8) are respectively arranged in the front and rear of propeller hub component, paddle shell
Connection bearer ring (17), blade (1) blade root and bearer ring (17) and paddle are threadably secured in the blade mounting groove of body (10)
The blade root seal assembly (3) of a set of floating is equipped between shell (10), blade (1) passes through blade root bolt (2) and blade root pin (18)
It is rigidly connected with crank disc (4), crank disc (4) and bearer ring (17) connect, and every crank disc (4) lower part sets that there are two bent
Handle pin (20), two crank-pins (20) are cased with a sliding block (19) respectively；The internal secondary piston (12) of the preceding oil cylinder (15) and
The internal rear piston (5) of oil cylinder (8) connects a sliding block (19) by respective piston rod respectively afterwards, and each piston rod is equipped with
Five slide block slots, slide block slot and the sliding block (19) on the crank-pin (20) of crank disc (4) are in mating connection.
2. the distance-adjustable oar hub of double-crank transmission according to claim 1, it is characterised in that: the blade root seal assembly
(3) the blade seal disc (3b) in is equipped between bearer ring (17) by spring (3c) below, and blade seal disc (3b) is by spring
(3c) effect is held against blade (1) flange bottom, and blade seal disc (3b) is additionally provided with stop between bearer ring (17) below
It sells (3d), so as not to have relative rotation with propeller hub body；Between blade seal disc (3b) lateral surface and paddle shell (10) and blade
O-ring seals (3a) is respectively equipped between the seal disc upper surface (3b) and blade (1).
3. the distance-adjustable oar hub of double-crank according to claim 1 transmission, it is characterised in that: the preceding oil cylinder (15) and after
The oil communication of the chamber of oil cylinder (8), rear piston rod (6) are connected with propeller hub outer oil pipe (7), and the front/back cavity of rear oil cylinder (8) leads to respectively
Two oil pipes (9) are crossed to be connected with the front/back cavity of preceding oil cylinder (15).
4. the distance-adjustable oar hub of double-crank transmission according to claim 1, it is characterised in that: the propeller hub component passes through axis
Flange bolt (16) and shaft flange pin (13) and paddle shaft flange are rigidly connected, for transmitting the torque and spiral shell of main shaft supply propeller
What rotation paddle generated pushes or pulls on power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821009761.3U CN208699033U (en) | 2018-06-28 | 2018-06-28 | The distance-adjustable oar hub of double-crank transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821009761.3U CN208699033U (en) | 2018-06-28 | 2018-06-28 | The distance-adjustable oar hub of double-crank transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208699033U true CN208699033U (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821009761.3U Active CN208699033U (en) | 2018-06-28 | 2018-06-28 | The distance-adjustable oar hub of double-crank transmission |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750057A (en) * | 2018-06-28 | 2018-11-06 | 中国船舶重工集团公司第七0四研究所 | The distance-adjustable oar hub of double-crank transmission |
-
2018
- 2018-06-28 CN CN201821009761.3U patent/CN208699033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750057A (en) * | 2018-06-28 | 2018-11-06 | 中国船舶重工集团公司第七0四研究所 | The distance-adjustable oar hub of double-crank transmission |
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