CN108100206A - A kind of steering mechanism - Google Patents
A kind of steering mechanism Download PDFInfo
- Publication number
- CN108100206A CN108100206A CN201711003054.3A CN201711003054A CN108100206A CN 108100206 A CN108100206 A CN 108100206A CN 201711003054 A CN201711003054 A CN 201711003054A CN 108100206 A CN108100206 A CN 108100206A
- Authority
- CN
- China
- Prior art keywords
- double
- rod
- shift fork
- acting hydraulic
- cylinder
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H25/06—Steering by rudders
- B63H25/08—Steering gear
- B63H25/12—Steering gear with fluid transmission
Abstract
The invention discloses a kind of steering mechanisms, belong to steering engine field.The steering mechanism includes two double rod double acting hydraulic cylinders that parallel interval is set, first shift fork and the second shift fork, by setting two double rod double acting hydraulic cylinders, and push rod is set respectively on each piston rod of double rod double acting hydraulic cylinder, two card slots on first shift fork contact respectively with the push rod on two piston rods of two double rod double acting hydraulic cylinder one end, two card slots on second shift fork contact respectively with the push rod on two piston rods of two double rod double acting hydraulic cylinder other ends, allow to that two double rod double acting hydraulic cylinders is controlled to stretch, the first shift fork and the second shift fork is driven to rotate synchronously, so as to which the rudder stock of two rudders be driven to rotate synchronously, it is simple in structure, avoid set two steering mechanisms and whens lazy-tongs caused occupied space it is very much not easy to repair the problem of.
Description
Technical field
The present invention relates to steering engine field, more particularly to a kind of steering mechanism.
Background technology
Rudder is a kind of to keep and change the important equipment of ship course, and the rotation of rudder is realized by steering mechanism
's.
It is set on some ships at present there are two rudder, two rudders rotate synchronously at work.In order to which two rudders is controlled to turn
It is dynamic, it needs corresponding two rudders that a set of steering mechanism is set respectively on ship, in order to ensure the synchronization of two rudders, rudder is pushed away at two sets
The lazy-tongs of setting structure complexity are also needed between mechanism, set two sets of steering mechanisms and lazy-tongs that can not only increase occupancy
Space, and lazy-tongs are complicated, are not easy to repair.
The content of the invention
It is big in order to solve occupied space caused by setting two sets of steering mechanisms and lazy-tongs on the ship using Twin Rudders
The problem of being not easy to repair, an embodiment of the present invention provides a kind of steering mechanisms.The technical solution is as follows：
A kind of steering mechanism, the steering mechanism include two double rod double acting hydraulic cylinders, first that parallel interval is set
Shift fork and the second shift fork are both provided with push rod on each piston rod of the double rod double acting hydraulic cylinder, first shift fork
Middle part is provided with the mounting hole for being connected with rudder stock, is also set up on first shift fork there are two card slot, second shift fork
Structure it is identical with the structure of first shift fork, it is described two on the axis direction along the double rod double acting hydraulic cylinder
Double rod double acting hydraulic cylinder is between first shift fork and second shift fork, the mounting hole of first shift fork and described
The mounting hole of second shift fork is respectively positioned between described two double rod double acting hydraulic cylinders, two card slots difference of first shift fork
It is contacted with the push rod on two piston rods of one end of the cylinder body positioned at described two double rod double acting hydraulic cylinders, described second group
Fork two card slots respectively on two piston rods of the other end of the cylinder body positioned at described two double rod double acting hydraulic cylinders
Push rod contacts.
Optionally, the push rod is arranged on one end being located at outside cylinder body of the piston rod of the double rod double acting hydraulic cylinder
End.
Preferably, the double rod double acting hydraulic cylinder further includes ram seat, and the ram seat is connected to the double rod double cropping
On end face with the piston rod of hydraulic cylinder, the push rod is mounted in the ram seat.
Further, mounting groove, the ram seat are provided on the end face of the piston rod of the double rod double acting hydraulic cylinder
Including mounting cylinder and connecting shaft, one end of the connecting shaft is connected on the outer wall of the mounting cylinder, the connecting shaft it is another
End is coaxially plugged in the mounting groove, and the push rod is arranged in the mounting cylinder.
Preferably, coaxial sleeve is equipped with idler wheel on the push rod, and the idler wheel is arranged in corresponding card slot.
Preferably, the cylinder body both ends of the double rod double acting hydraulic cylinder are respectively arranged with end cover, each sealing
End cap includes sleeve and is co-axially located at the flange ring of one end of the sleeve, and the sleeve is plugged in the double rod double acting
In the cylinder body of hydraulic cylinder, the flange ring is connected on the end face of the cylinder body of the double rod double acting hydraulic cylinder.
Preferably, the end cover includes two interfacing parts of docking, and the structure of described two interfacing parts is identical, described
Two interfacing parts are mutually butted into the sleeve and the flange ring.
Optionally, it is provided with the first seal groove on the lateral wall of the sleeve.
Further, it is provided with the second seal groove on the madial wall of the sleeve.
Optionally, support base is respectively arranged on the cylinder body of described two double rod double acting hydraulic cylinders, the support base is used
The pumping plant of described two double rod double acting hydraulic cylinders is driven in installation.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：By setting two double rod double-action hydraulics
Cylinder, and push rod is set respectively on each piston rod of double rod double acting hydraulic cylinder, two card slots on the first shift fork respectively with
Push rod contact on two piston rods of two double rod double acting hydraulic cylinder one end, two card slots on the second shift fork are respectively with two
Push rod contact on two piston rods of a double rod double acting hydraulic cylinder other end so that two double rod double acting liquid can be controlled
Cylinder pressure stretches, and the first shift fork and the second shift fork is driven to rotate synchronously, so as to which the rudder stock of two rudders be driven to rotate synchronously, structure letter
It is single, avoid the problem of caused occupied space when setting two steering mechanisms and lazy-tongs is very much not easy to repair.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structure diagram of steering mechanism provided in an embodiment of the present invention；
Fig. 2 is a kind of partial structural diagram of piston rod provided in an embodiment of the present invention；
Fig. 3 is a kind of structure diagram of end cover provided in an embodiment of the present invention；
Fig. 4 is a kind of structure diagram of interfacing part provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of structure diagram of steering mechanism provided in an embodiment of the present invention, as shown in Figure 1, the steering mechanism
Two double rod double acting hydraulic cylinders 10, the first shift fork 21 and the second shift fork 22 set including parallel interval.Double rod double acting liquid
Push rod 40 is both provided on each piston rod of cylinder pressure 10.
The middle part of first shift fork 21 is provided with the mounting hole 21a being connected with rudder stock, is additionally provided on the first shift fork 21
Two card slot 20a, the structure of the second shift fork 22 are identical with the structure of the first shift fork 21.
On the axis direction along double rod double acting hydraulic cylinder 10, two double rod double acting hydraulic cylinders 10 are located at the first shift fork
21 and second between shift fork 22, and the mounting hole 21a of the mounting hole 21a of the first shift fork 21 and the second shift fork 22 is respectively positioned on two double rods
Between double acting hydraulic cylinder 10.Two card slot 20a of the first shift fork 21 respectively with positioned at two double rod double acting hydraulic cylinders 10
Push rod 40 on two piston rods of one end of cylinder body 12 contacts, two card slot 20a of the second shift fork 22 respectively with positioned at two
Push rod 40 on two piston rods of the other end of the cylinder body 12 of double rod double acting hydraulic cylinder 10 contacts.
Push rod 40 is located in corresponding card slot 20a so that push rod 40 can be dialled with during piston rod movement by card slot 20a
Dynamic corresponding shift fork rotates.
First shift fork 21 is connected by the rudder stock of mounting hole 21a and a rudder of ship, and the second shift fork 22 passes through mounting hole
The rudder stock connection of another of 22a and ship rudder.
By setting two double rod double acting hydraulic cylinders, and set respectively on each piston rod of double rod double acting hydraulic cylinder
Put push rod, two card slots on the first shift fork respectively with the push rod on two piston rods of two double rod double acting hydraulic cylinder one end
Contact, two card slots on the second shift fork respectively with the push rod on two piston rods of two double rod double acting hydraulic cylinder other ends
Contact so that two double rod double acting hydraulic cylinders can be controlled to stretch, the first shift fork and the second shift fork is driven to rotate synchronously, so as to
The rudder stock of two rudders is driven to rotate synchronously, it is simple in structure, avoid caused when two steering mechanisms and lazy-tongs are set account for
With space it is very much not easy to repair the problem of.
It should be noted that double rod double acting hydraulic cylinder 10 includes cylinder body 12 and two piston rods 11, two piston rods 11
Coaxial arrangement, at work, two piston rods 11 move double rod double acting hydraulic cylinder 10 together, when one of piston rod 11 is stretched
When long, another piston rod 11 shortens, in the telescopic direction of double rod double acting hydraulic cylinder 10, same double rod double acting hydraulic cylinder
The spacing between push rod 40 on 10 two piston rods 11 is constant always.
Preferably, push rod 40 is arranged on the end of one end being located at outside cylinder body of the piston rod of double rod double acting hydraulic cylinder 10
Portion.It can so be conducive to shorten the length of piston rod, reduce steering mechanism the space occupied.
Fig. 2 is a kind of partial structural diagram of piston rod provided in an embodiment of the present invention, as shown in Fig. 2, double rod double cropping
It can also include ram seat 50 with hydraulic cylinder 10, ram seat 50 is connected to the end face of the piston rod of double rod double acting hydraulic cylinder 10
On, push rod 40 is mounted in ram seat 50.By setting ram seat 50 can be in order to push rod 40 is installed on piston rod.
Specifically, mounting groove 11a, ram seat can be provided on the end face of the piston rod 11 of double rod double acting hydraulic cylinder 10
50 include mounting cylinder 51 and connecting shaft 52, and one end of connecting shaft 52 is connected on the outer wall of mounting cylinder 51, connecting shaft 52 it is another
End is coaxially plugged in mounting groove 11a, and push rod 40 is arranged in mounting cylinder 51.
During realization, it can also pass through key connection by being welded to connect between connecting shaft 52 and piston rod 11.This implementation
In example, connecting shaft 52 and piston rod 11 circumferentially spaced can set multiple keyways, mounting groove by key connection in connecting shaft 52
The position of keyway is corresponded on the side wall of 11a can set multiple opening 11b, can after connecting shaft 52 is inserted into mounting groove 11a
To place key in opening 11b and keyway, key can be welded to connect with piston rod 11, be loosened to avoid key.
As shown in Figure 1, the first shift fork 21 includes the first plate body 211 and the second plate body 212 that interval face is set, two double
The piston rod 11 of bar double acting hydraulic cylinder 10 is between the first plate body 211 and the second plate body 212, such first shift fork 21 and
What two shift forks 22 can more be stablized is connected with piston rod 11.It is contemplated that on the first plate body 211 and the second plate body 212
Through hole is both provided with, is so connected convenient for the first shift fork 21 with rudder stock.
During specific implementation, it can be bolted between the first plate body 211 and the second plate body 212, in order to dismantle.
In addition, can also set branch sleeve 213 between the first plate body 211 and the second plate body 212, branch sleeve 213 can
To be welded to connect with the first plate body 211 and the second plate body 212, branch sleeve 213 and mounting hole 21a is coaxially disposed so that first
For shift fork 21 when being connected with rudder stock, rudder stock can be to pass through branch sleeve 213.
Preferably, card slot 20a can include the notch being arranged on the first plate body 211 and be arranged on the second plate body 212
Notch, the notch on notch and the second plate body 212 on the first plate body 211 contacts with push rod 40.So in piston rod 11
When flexible, push rod 40 can promote the first plate body 211 and the second plate body 212 simultaneously, and the rotation for making the first shift fork 21 is more steady.
It is contemplated that the structure identical with the first shift fork 21 may be employed in the second shift fork 22.
As shown in Figure 1, push rod 40 can be plugged on piston rod 11, the both ends of push rod 40 are contacted respectively in the first plate body
In the notch of 211 notch and the second plate body 212.
Preferably, idler wheel 41 can be coaxially arranged on push rod 40, idler wheel 41 is arranged in corresponding card slot 20a.So exist
When promoting the first shift fork 21 and the rotation of the second shift fork 22, the friction between push rod 40 and card slot 20a can be reduced.
During realization, an idler wheel 41 can be set at the both ends of push rod 40, one of idler wheel 41 is located at the first plate respectively
In the notch of body 211, another idler wheel 41 is located in the notch of the second plate body 212.
As shown in Figure 1,12 both ends of cylinder body of double rod double acting hydraulic cylinder 10 are respectively arranged with end cover 121.Fig. 3 is this
The structure diagram for a kind of end cover that inventive embodiments provide, as shown in figure 3, each end cover 121 includes sleeve
1211 and be co-axially located at sleeve 1211 one end flange ring 1212, sleeve 1211 is plugged in double rod double acting hydraulic cylinder 10
In cylinder body 12, flange ring 1212 is connected on the end face of cylinder body 12 of double rod double acting hydraulic cylinder 10.End cover 121 can be right
The cylinder body 12 of double rod double acting hydraulic cylinder 10 is sealed.
Specifically, the first seal groove 1211a is provided on the lateral wall of sleeve 1211.So as in the first seal groove
Sealing ring is set in 1211a, to be sealed between sleeve 1211 and the cylinder body 12 of double rod double acting hydraulic cylinder 10.
In addition, the second seal groove 1211b can be provided on the madial wall of sleeve 1211.So as in the second seal groove
Sealing ring is set in 1211b, to be sealed between sleeve 1211 and the piston rod 11 of double rod double acting hydraulic cylinder 10.
Fig. 4 is a kind of structure diagram of interfacing part provided in an embodiment of the present invention, as shown in figure 4, end cover 121 can
To include two interfacing parts 122 of docking, the structure of two interfacing parts 122 is identical, and two interfacing parts 122 are mutually butted into sleeve
1211 and flange ring 1212, it so can be in order to the dismounting of end cover 121.Two interfacing parts 122 can pass through bolt respectively
It is connected on the cylinder body 12 of double rod double acting hydraulic cylinder 10.
As shown in Figure 1, fixed base can be separately provided on the cylinder body 12 of two double rod double acting hydraulic cylinders 10
Seat 101, in order to which two double rod double acting hydraulic cylinders 10 are fixedly mounted on hull, it is double that pedestal 101 can be welded on double rod
It, can also be with 12 monoblock cast of cylinder body on the cylinder body 12 of acting cylinder 10.
In addition, support base 102, support base can also be respectively arranged on the cylinder body 12 of two double rod double acting hydraulic cylinders 10
102 drive the pumping plant of two double rod double acting hydraulic cylinders 10 for installing.Support base 102 can be welded on double rod double-action hydraulic
On the cylinder body 12 of cylinder 10, two double rod double acting hydraulic cylinders can also will directly can be so driven with 12 monoblock cast of cylinder body
10 pumping plant is mounted on support base 102, it may not be necessary in addition installation space installation pumping plant, while pumping plant is mounted on support
The length for shortening the pipeline between double rod double acting hydraulic cylinder 10 and pumping plant is also helped on seat 102.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modifications, equivalent replacements and improvements are made should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of steering mechanism, which is characterized in that the steering mechanism includes two double rod double acting liquid that parallel interval is set
Cylinder pressure (10), the first shift fork (21) and the second shift fork (22), on each piston rod of the double rod double acting hydraulic cylinder (10)
Push rod (40) is provided with, is provided with the mounting hole (21a) being connected with rudder stock in the middle part of first shift fork (21), described
Card slot (20a) there are two being also set up on one shift fork (21), the structure of second shift fork (22) and first shift fork (21)
Structure is identical, on the axis direction along the double rod double acting hydraulic cylinder (10), described two double rod double acting hydraulic cylinders
(10) between first shift fork (21) and second shift fork (22), the mounting hole (21a) of first shift fork (21)
And the mounting hole (21a) of second shift fork (22) is respectively positioned between described two double rod double acting hydraulic cylinders (10), described
Two card slots (20a) of one shift fork (21) one end with the cylinder body 12 positioned at described two double rod double acting hydraulic cylinders (10) respectively
Two piston rods on push rod (40) contact, two card slots (20a) of second shift fork (22) respectively with positioned at described two
Push rod (40) contact on two piston rods of the other end of the cylinder body of a double rod double acting hydraulic cylinder (10).
2. steering mechanism according to claim 1, which is characterized in that the push rod (40) is arranged on the double rod double acting
The end of one end being located at outside cylinder body of the piston rod of hydraulic cylinder (10).
3. steering mechanism according to claim 2, which is characterized in that the double rod double acting hydraulic cylinder (10), which further includes, to push away
Pole socket (50), the ram seat (50) is connected on the end face of the piston rod of the double rod double acting hydraulic cylinder (10), described to push away
Bar (40) is mounted in the ram seat (50).
4. steering mechanism according to claim 3, which is characterized in that the piston rod of the double rod double acting hydraulic cylinder (10)
End face on be provided with mounting groove (11a), the ram seat (50) includes mounting cylinder (51) and connecting shaft (52), the connecting shaft
(52) one end is connected on the outer wall of the mounting cylinder (51), and the other end of the connecting shaft (52) is coaxially plugged in the peace
In tankage (11a), the push rod (40) is arranged in the mounting cylinder (51).
5. according to Claims 1 to 4 any one of them steering mechanism, which is characterized in that be coaxially arranged on the push rod (40)
There is idler wheel (41), the idler wheel (41) is arranged in corresponding card slot (20a).
6. according to Claims 1 to 4 any one of them steering mechanism, which is characterized in that the double rod double acting hydraulic cylinder
(10) cylinder body both ends are respectively arranged with end cover (121), each end cover (121) include sleeve (1211) and
The flange ring (1212) of one end of the sleeve (1211) is co-axially located at, the sleeve (1211) is plugged in the double rod double cropping
In cylinder body with hydraulic cylinder (10), the flange ring (1212) is connected to the end of the cylinder body of the double rod double acting hydraulic cylinder (10)
On face.
7. steering mechanism according to claim 6, which is characterized in that the end cover (121) includes two of docking
Interfacing part (122), the structure of described two interfacing parts (122) is identical, and described two interfacing parts (122) are mutually butted into the set
Cylinder (1211) and the flange ring (1212).
8. steering mechanism according to claim 6, which is characterized in that is provided on the lateral wall of the sleeve (1211)
One seal groove (1211a).
9. steering mechanism according to claim 6, which is characterized in that is provided on the madial wall of the sleeve (1211)
Two seal grooves (1211b).
10. according to Claims 1 to 4 any one of them steering mechanism, which is characterized in that described two double rod double-action hydraulics
Support base (102) is respectively arranged on the cylinder body of cylinder (10), the support base (102) drives described two double rods double for installing
The pumping plant of acting cylinder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003054.3A CN108100206B (en) | 2017-10-24 | 2017-10-24 | Rudder pushing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711003054.3A CN108100206B (en) | 2017-10-24 | 2017-10-24 | Rudder pushing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108100206A true CN108100206A (en) | 2018-06-01 |
| CN108100206B CN108100206B (en) | 2020-04-21 |
Family
ID=62206131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711003054.3A Active CN108100206B (en) | 2017-10-24 | 2017-10-24 | Rudder pushing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108100206B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808864A (en) * | 2019-01-23 | 2019-05-28 | 武汉船用机械有限责任公司 | Come about mechanism |
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| DE2549335A1 (en) * | 1975-11-04 | 1977-05-12 | Brown Brothers & Co Ltd | Actuator for ships rudder - uses rotary positive displacement motor in rotatable casing having lugs acting as crossheads |
| SU612850A1 (en) * | 1976-09-01 | 1978-06-30 | Предприятие П/Я В-2801 | Hydraulic vessel-steering system |
| US4434738A (en) * | 1981-01-15 | 1984-03-06 | Jastram-Werke Gmbh & Co. Kg | Rudder for watercraft |
| JPS6154396A (en) * | 1984-08-22 | 1986-03-18 | Mitsubishi Heavy Ind Ltd | Rudder control device of 2-rudder system high speed ship |
| SU1504164A1 (en) * | 1987-07-28 | 1989-08-30 | Ленинградский механический институт им.Маршала Советского Союза Устинова Д.Ф. | Hydraulic actuator for steering gear |
| US5445100A (en) * | 1994-03-04 | 1995-08-29 | Finkl; Anthony W. | Dual rudder system for trimming planing-type hulls |
| JPH11348889A (en) * | 1998-06-15 | 1999-12-21 | Kamome Propeller Kk | Steering device for ship |
| DE10115110A1 (en) * | 2001-03-22 | 2002-09-26 | Maretec Ohg | Hydraulic control system for ship's rudder has hydraulic oil feed pump with electric motor supplied by frequency converter and pump provides two different feed directions for hydraulic oil |
| CN102001435A (en) * | 2010-10-26 | 2011-04-06 | 广西梧州运龙港船机械制造有限公司 | Marine hydraulic steering engine |
| CN103057686A (en) * | 2012-12-26 | 2013-04-24 | 南宁睿洋自动化科技有限公司 | Telex steering control system |
| CN205524914U (en) * | 2016-01-23 | 2016-08-31 | 国营海东造船厂 | Tilt cylinder formula hydraulic actuator |
-
2017
- 2017-10-24 CN CN201711003054.3A patent/CN108100206B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2549335A1 (en) * | 1975-11-04 | 1977-05-12 | Brown Brothers & Co Ltd | Actuator for ships rudder - uses rotary positive displacement motor in rotatable casing having lugs acting as crossheads |
| SU612850A1 (en) * | 1976-09-01 | 1978-06-30 | Предприятие П/Я В-2801 | Hydraulic vessel-steering system |
| US4434738A (en) * | 1981-01-15 | 1984-03-06 | Jastram-Werke Gmbh & Co. Kg | Rudder for watercraft |
| JPS6154396A (en) * | 1984-08-22 | 1986-03-18 | Mitsubishi Heavy Ind Ltd | Rudder control device of 2-rudder system high speed ship |
| SU1504164A1 (en) * | 1987-07-28 | 1989-08-30 | Ленинградский механический институт им.Маршала Советского Союза Устинова Д.Ф. | Hydraulic actuator for steering gear |
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| JPH11348889A (en) * | 1998-06-15 | 1999-12-21 | Kamome Propeller Kk | Steering device for ship |
| DE10115110A1 (en) * | 2001-03-22 | 2002-09-26 | Maretec Ohg | Hydraulic control system for ship's rudder has hydraulic oil feed pump with electric motor supplied by frequency converter and pump provides two different feed directions for hydraulic oil |
| CN102001435A (en) * | 2010-10-26 | 2011-04-06 | 广西梧州运龙港船机械制造有限公司 | Marine hydraulic steering engine |
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| CN205524914U (en) * | 2016-01-23 | 2016-08-31 | 国营海东造船厂 | Tilt cylinder formula hydraulic actuator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109808864A (en) * | 2019-01-23 | 2019-05-28 | 武汉船用机械有限责任公司 | Come about mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108100206B (en) | 2020-04-21 |
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