CN109733577A - Floating type screw pitch indicating mechanism - Google Patents
Floating type screw pitch indicating mechanism Download PDFInfo
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- CN109733577A CN109733577A CN201910183984.4A CN201910183984A CN109733577A CN 109733577 A CN109733577 A CN 109733577A CN 201910183984 A CN201910183984 A CN 201910183984A CN 109733577 A CN109733577 A CN 109733577A
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- screw pitch
- shift fork
- projecting shaft
- indicating mechanism
- rocker arm
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- 230000011664 signaling Effects 0.000 claims abstract description 13
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000013623 stereotypic movement disease Diseases 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The present invention relates to a kind of floating type screw pitch indicating mechanism, upper housing is installed on oil distribution shaft after being fixedly connected with lower case integrally by bearing, is connected below the lower case with the anti-rotation stanchions being fixed on hull pedestal, is prevented from rotating；Scale plate and screw pitch signalling generator are fixedly connected with by support plate above the upper housing, pointer is fixedly connected on the screw pitch signalling generator projecting shaft, and be connected with one end, shift fork group is rotatablely connected on the other end of rocker arm, shift fork group is connect with feedback loop；The screw pitch signalling generator projecting shaft connects electric-control system by potentiometer, and the angular displacement for rotating projecting shaft is converted to electric signal and is supplied to electric-control system, and the pointer is swung around projecting shaft, cooperates scale plate, shows pitch propeller device blade.The present invention is able to achieve the high-precision screw pitch instruction function of long axis system pitch propeller device, to improve the control precision and working performance of power propulsion system.
Description
Technical field
The present invention relates to a kind of ship power propulsion system pitch propeller device, especially a kind of screw pitch indicating mechanism.
Background technique
Screw pitch indicating mechanism is a kind of mechanical mechanism for showing tuning for Controllable Pitch Propeller blade screw pitch, is mainly used in pitch propeller device
Shaft-type oil distributor.Previous screw pitch indicating mechanism uses the roller type indicating mechanism of sprocket wheel chain driving type referring to foreign countries,
The disadvantage is that precision is lower, it is not suitable for the higher pitch propeller device of roll adjustment required precision.Currently, having a kind of tuning for Controllable Pitch Propeller blade
Screw pitch indicating mechanism can be realized high-precision screw pitch instruction function.The screw pitch indicating mechanism is installed on hull, the change of hull
The own gap of shape and thrust bearing will affect the pointing accuracy of indicating mechanism；When pitch propeller device shafting is longer, oil pipe
Deformation of expanding with heat and contract with cold will be apparent from.Under the deformation of hull and oil pipe and the joint effect in thrust bearing gap, which refers to
Show that the pointing accuracy of mechanism is a greater impact, so that the application of the screw pitch indicating mechanism has certain limitation, is only applicable to short
Shafting pitch propeller device.With the enlargement development of ship, pitch propeller device shafting is increasingly longer, and therefore, there is an urgent need to one kind
Suitable for the screw pitch indicating mechanism of long axis system pitch propeller device, i.e., floating type screw pitch instruction structure of the invention.
Summary of the invention
The present invention is to provide for a kind of floating type screw pitch indicating mechanism, can solve long axis system pitch propeller device screw pitch instruction essence
Spend the problem of difference.The present invention is able to achieve the high-precision screw pitch instruction function of long axis system pitch propeller device, to improve Powered Propulsion
The control precision and working performance of system.
To achieve the above object, the technical scheme is that a kind of floating type screw pitch indicating mechanism, including upper housing,
Support plate, shift fork group, rocker arm, pointer, scale plate, lower case and anti-rotation pillar, the upper housing are fixedly connected into lower case
It is installed on oil distribution shaft after one by bearing, is connect below the lower case with the anti-rotation stanchions being fixed on hull pedestal
Touching connection, prevents from rotating；Scale plate and screw pitch signalling generator, the screw pitch hair are fixedly connected with by support plate above the upper housing
It is fixedly connected with pointer on news device projecting shaft, and is connected with one end, shift fork group, shift fork are rotatablely connected on the other end of rocker arm
Group is connect with feedback loop；The screw pitch signalling generator projecting shaft connects electric-control system by potentiometer, for rotate projecting shaft
Angular displacement is converted to electric signal and is supplied to electric-control system, and the pointer is swung around projecting shaft, cooperates scale plate, display tuning for Controllable Pitch Propeller dress
Set blade.
Further, the shift fork group includes shift fork body, baffle, two holding screws, two friction blocks, the shift fork body
Rocking arm inner hole is inserted into one end, can mutually rotate；The other end is fixedly connected with baffle c, the friction block f be respectively placed in shift fork body and
In the groove of baffle, two friction blocks are connect by face contact friction pair with feedback loop.
Further, when oil distribution shaft rotate, when the feedback loop rotate and is axially moveable with oil distribution shaft, the friction block and
Annular face contacts friction is fed back, the shift fork group is moved axially with feedback loop；The rocker arm is sent out under the drive of shift fork group around screw pitch
The projecting shaft for interrogating device is swung.
Further, the baffle is screwed into holding screw by threaded hole and fixes with shift fork body, and passes through nut check.
Further, it is provided with the skylight of easy disassembly rocker arm and shift fork group on the support plate, pacifies at the support plate skylight
Equipped with transparent panel.
Further, when real ship is installed, anti-rotation pillar one end is inserted into lower case groove, and one end and hull pedestal weld
It is connected.
The beneficial effects of the present invention are:
It is the rocker-arm screw pitch indicating mechanism being installed on oil distribution shaft using floating type screw pitch indicating mechanism of the invention, when
When the deformation of hull, screw pitch indicating mechanism and hull are contactless, and screw pitch instruction is unaffected；When shafting vibration, screw pitch indicates machine
Vibration, screw pitch instruction are also unaffected simultaneously for structure and shafting.Therefore, the present invention can be to avoid the deformation of hull or shafting vibration to spiral shell
Influence away from instruction, realizes the instruction function of degree of precision, to improve the control precision and working performance of power propulsion system.
Detailed description of the invention
Fig. 1 is floating type screw pitch indicating mechanism totality main view of the invention；
Fig. 2 is the axial sectional view in Fig. 1；
Fig. 3 is pull-fork assembly cross-sectional view in Fig. 1；
In figure, 1. shells, 2. support plates, 3. pull-fork assembly 3a. shift fork bodies, 3b. screw, 3c. baffle, 3d. holding screw,
3e. nut, 3f. friction block, 4. rocker arms, 5. pointers, 6. scale plate, 7. transparent panel, 8. bearings, 9. lower cases, 10. anti-rotation pillars,
11. feedback loop, 12. oil distribution shafts, 13. screw pitch signalling generators.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
As shown in figures 1 and 2, floating type screw pitch indicating mechanism of the invention, including upper housing 1, support plate 2, shift fork group 3, shake
Arm 4, pointer 5, scale plate 6, transparent panel 7, bearing 8, lower case 9 and anti-rotation pillar 10.Upper housing 1 and lower case 9 pass through screw
It is solidly fixed, is on the one hand installed on oil distribution shaft 12 by bearing 8, on the other hand by the cooperation contact of anti-rotation pillar 10, prevented
Rotation stop is dynamic.Support plate 2 is connected by screw and upper housing 1, and scale plate 6 is connected by screw and support plate 2.Screw pitch signalling generator 13
It is connected by screw and support plate 2, be successively connected pointer 5 and Rocker arm 4 on screw pitch signalling generator projecting shaft.Shift fork group 3, which is installed on, shakes
The other end of arm 4 can relatively rotate.Support plate 2 puts in a skylight, and easy disassembly Rocker arm 4 and shift fork group 3, transparent panel 7 are installed on bearing
At 2 skylight of plate.
As shown in figure 3, shift fork group 3 includes shift fork body 3a, two screw 3b, baffle 3c, two holding screw 3d, two spiral shells
Female 3e and two friction block 3f.Rocker arm 4 inner hole is inserted into one end of shift fork body 3a, can mutually rotate；The other end passes through two screws
3b is connected baffle 3c.The threaded hole of baffle 3c is screwed into holding screw 3d, and holding screw 3d is locked by nut 3e.Friction block 3f points
It is not placed in the groove of shift fork body 3a and baffle 3c, two friction block 3f are connect by face contact friction pair with feedback loop 11.
In workshop assembly, floating type screw pitch indicating mechanism and oil distribution shaft 12 are assembled integrally.When real ship is installed, prevent
Turn in 10 one end of pillar insertion, 9 groove of lower case, one end and the welding of hull pedestal are connected.
Oil distribution shaft 12 rotates when work, and 11 one side of feedback loop is rotated with oil distribution shaft 12, is on the other hand axially moveable.This
When, friction block 3f and 11 face contact friction of feedback loop, shift fork group 3 are moved axially with feedback loop 11；Band of the Rocker arm 4 in shift fork group 3
It is swung under dynamic around the projecting shaft of screw pitch signalling generator 13.On the one hand the rotation of 13 projecting shaft of screw pitch signalling generator will be rotated using potentiometer
Angular displacement be converted to electric signal and be supplied to electric-control system, another aspect pointer 5 cooperates scale plate 6 around its swing, shows roll adjustment
The angle of pitch of paddle device blade.
Claims (3)
1. a kind of floating type screw pitch indicating mechanism, including upper housing (1), support plate (2), shift fork group (3), rocker arm (4), pointer
(5), scale plate (6), lower case (9) and anti-rotation pillar (10), it is characterised in that: the upper housing (1) and lower case (9) are fixed
Be installed on oil distribution shaft (12) after linking into an integrated entity by bearing (8), the lower case (9) below be fixed on hull pedestal
Anti-rotation pillar (10) cooperate connect, prevent from rotating；The upper housing (1) is fixedly connected with quarter by support plate (2) above
Spend plate (6) and screw pitch signalling generator (13), be fixedly connected pointer (5) on screw pitch signalling generator (13) projecting shaft, and with rocker arm (4)
One end is connected, and is rotatablely connected shift fork group (3) on the other end of rocker arm (4), and shift fork group (3) is connect with feedback loop (11)；It is described
Screw pitch signalling generator (13) projecting shaft connects electric-control system by potentiometer, and the angular displacement for rotating projecting shaft is converted to telecommunications
It number is supplied to electric-control system, the pointer (5) swings around projecting shaft, cooperates scale plate (6), shows pitch propeller device blade.
2. floating type screw pitch indicating mechanism according to claim 1, it is characterised in that: the shift fork group (3) includes shift fork
Rocker arm (4) inner hole is inserted into one end of body (3a), baffle (3c), two friction blocks (3f), the shift fork body (3a), can mutually turn
It is dynamic；The other end is fixedly connected baffle (3c), and the friction block (3f) is respectively placed in the groove of shift fork body (3a) and baffle (3c)
In, two friction blocks (3f) are connect by face contact friction pair with feedback loop (11).
3. floating type screw pitch indicating mechanism according to claim 2, it is characterised in that: described when oil distribution shaft (12) rotation
When feedback loop (11) is rotated and is axially moveable with oil distribution shaft (12), the friction block (3f) contacts with feedback anchor ring (11) and rubs
It wipes, the shift fork group (3) moves axially with feedback loop (11)；The rocker arm (4) is under the drive of shift fork group (3) around screw pitch sender
The projecting shaft of device (13) is swung.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183984.4A CN109733577B (en) | 2019-03-12 | 2019-03-12 | Floating type pitch indicating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910183984.4A CN109733577B (en) | 2019-03-12 | 2019-03-12 | Floating type pitch indicating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109733577A true CN109733577A (en) | 2019-05-10 |
| CN109733577B CN109733577B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910183984.4A Active CN109733577B (en) | 2019-03-12 | 2019-03-12 | Floating type pitch indicating mechanism |
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| CN (1) | CN109733577B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466726A (en) * | 2019-08-15 | 2019-11-19 | 中国船舶重工集团公司第七0四研究所 | Compact screw pitch signalling generator with function switching signal |
| CN114485373A (en) * | 2022-01-05 | 2022-05-13 | 武汉船用机械有限责任公司 | Adjusting method and adjusting structure of feedback loop of controllable pitch propeller |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895883A (en) * | 1973-10-29 | 1975-07-22 | James Miller Pedersen | Propeller pitch indicator |
| US4900280A (en) * | 1988-08-16 | 1990-02-13 | Midttun Ole H | Apparatus for detecting the pitch of a marine controllable pitch propeller |
| US4906213A (en) * | 1989-04-18 | 1990-03-06 | Bird-Johnson Company | Apparatus for detecting the pitch of a marine controllable pitch propeller |
| US6213713B1 (en) * | 1998-12-31 | 2001-04-10 | United Technologies Corporation | Apparatus for indicating pitch angle of a propeller blade |
| CN203186569U (en) * | 2013-03-19 | 2013-09-11 | 苏州船用动力系统股份有限公司 | Rudder propeller device with adjustable pitch |
| CN203461075U (en) * | 2013-08-14 | 2014-03-05 | 南京高精船用设备有限公司 | Marine adjustable-pitch all-direction blade pitch feedback mechanism |
| CN105452101A (en) * | 2013-06-19 | 2016-03-30 | 瓦锡兰荷兰公司 | Pitch angle indicator system |
| CN205131603U (en) * | 2015-11-24 | 2016-04-06 | 江苏华阳重工股份有限公司 | Pitch reaction type adjustable -pitch propeller |
| CN205652319U (en) * | 2016-04-07 | 2016-10-19 | 浙江三力士智能装备制造有限公司 | Box formula oil distributor feedback mechanism |
| CN206456533U (en) * | 2017-01-16 | 2017-09-01 | 中国船舶重工集团公司第七0四研究所 | Tuning for Controllable Pitch Propeller blade pitch indicating mechanism |
| CN108928452A (en) * | 2018-06-21 | 2018-12-04 | 苏州船用动力系统股份有限公司 | A kind of non-contact transmission indicating mechanism for ship pitch tuning for Controllable Pitch Propeller feedback |
| CN210027857U (en) * | 2019-03-12 | 2020-02-07 | 中国船舶重工集团公司第七0四研究所 | Floating type thread pitch indicating mechanism |
-
2019
- 2019-03-12 CN CN201910183984.4A patent/CN109733577B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895883A (en) * | 1973-10-29 | 1975-07-22 | James Miller Pedersen | Propeller pitch indicator |
| US4900280A (en) * | 1988-08-16 | 1990-02-13 | Midttun Ole H | Apparatus for detecting the pitch of a marine controllable pitch propeller |
| US4906213A (en) * | 1989-04-18 | 1990-03-06 | Bird-Johnson Company | Apparatus for detecting the pitch of a marine controllable pitch propeller |
| US6213713B1 (en) * | 1998-12-31 | 2001-04-10 | United Technologies Corporation | Apparatus for indicating pitch angle of a propeller blade |
| CN203186569U (en) * | 2013-03-19 | 2013-09-11 | 苏州船用动力系统股份有限公司 | Rudder propeller device with adjustable pitch |
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| US20160144939A1 (en) * | 2013-06-19 | 2016-05-26 | Wärtsilä Netherlands B.V. | Pitch Angle Indicator System |
| CN203461075U (en) * | 2013-08-14 | 2014-03-05 | 南京高精船用设备有限公司 | Marine adjustable-pitch all-direction blade pitch feedback mechanism |
| CN205131603U (en) * | 2015-11-24 | 2016-04-06 | 江苏华阳重工股份有限公司 | Pitch reaction type adjustable -pitch propeller |
| CN205652319U (en) * | 2016-04-07 | 2016-10-19 | 浙江三力士智能装备制造有限公司 | Box formula oil distributor feedback mechanism |
| CN206456533U (en) * | 2017-01-16 | 2017-09-01 | 中国船舶重工集团公司第七0四研究所 | Tuning for Controllable Pitch Propeller blade pitch indicating mechanism |
| CN108928452A (en) * | 2018-06-21 | 2018-12-04 | 苏州船用动力系统股份有限公司 | A kind of non-contact transmission indicating mechanism for ship pitch tuning for Controllable Pitch Propeller feedback |
| CN210027857U (en) * | 2019-03-12 | 2020-02-07 | 中国船舶重工集团公司第七0四研究所 | Floating type thread pitch indicating mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 邹义等: "调距桨推进中的轴系设计", 船舶工程, pages 69 - 75 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110466726A (en) * | 2019-08-15 | 2019-11-19 | 中国船舶重工集团公司第七0四研究所 | Compact screw pitch signalling generator with function switching signal |
| CN114485373A (en) * | 2022-01-05 | 2022-05-13 | 武汉船用机械有限责任公司 | Adjusting method and adjusting structure of feedback loop of controllable pitch propeller |
| CN114485373B (en) * | 2022-01-05 | 2024-09-20 | 武汉船用机械有限责任公司 | Adjusting method and adjusting structure of adjustable pitch propeller feedback loop |
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| Publication number | Publication date |
|---|---|
| CN109733577B (en) | 2023-11-17 |
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