CN203461761U - Hydraulic jacking device for ship - Google Patents
Hydraulic jacking device for ship Download PDFInfo
- Publication number
- CN203461761U CN203461761U CN201320449400.1U CN201320449400U CN203461761U CN 203461761 U CN203461761 U CN 203461761U CN 201320449400 U CN201320449400 U CN 201320449400U CN 203461761 U CN203461761 U CN 203461761U
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- cylinder body
- hydraulic jacking
- groove
- ship
- jacking apparatus
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Abstract
The utility model provides a hydraulic jacking device for a ship. The hydraulic jacking device comprises at least two cylinder bodies and at least two cylinder body grooves. Every cylinder body is arranged into an annular arc-shaped section structure. All the cylinder bodies are spliced together to form an annular structure. At least one cylinder body groove is integrally formed in every cylinder body, pistons are movably arranged in the cylinder body grooves, the pistons and the cylinder body grooves jointly form a cavity, and at least one oil channel is communicated between the cavity and a hydraulic system positioned on the outer portions of the cylinder bodies. The jacking device is formed in a mode of splicing a plurality of cylinder bodies, so that when rudder blades or parts with similar structures such as propellers are installed, large nuts do not need to be screwed off, only connecting plates and bolts in the hydraulic jacking device for the ship are dismantled and then the hydraulic jacking device for the ship is removed, installing times of the large nuts is reduced, and labor intensity of constructors is reduced.
Description
Technical field
The utility model relates to hydraulic jacking device, particularly a kind of ship hydraulic jacking apparatus.
Background technology
Generally, the rudder blade of many large ships or structure similar parts need to utilize dedicated hydraulic instrument that ship provides to realize as installations such as screw propellers.But some boats and ships have, have without.And dedicated hydraulic instrument of the prior art is the ring-like hydraulic jacking device of a kind of circle, after rudder blade or screw propeller are in place, large-scale nut need to be screwed off, remove dedicated hydraulic jacking apparatus, again again large-scale nut is screwed on, install, lock rudder blade or screw propeller.During the erection cost of large-scale nut, effort, particularly lock the large-scale nut of rudder blade, its installation is revolved vertically upward, more time-consuming, effort.
Utility model content
The technical problems to be solved in the utility model is at the rudder blade of large ship or structure similar parts, to reduce the installation number of times of large-scale nut during as installations such as screw propellers in order to overcome prior art, the labour intensity that reduces workmen, provides a kind of large-scale nut of needn't dismantling completely can complete the ship hydraulic jacking apparatus to the installation of the parts such as rudder blade.
The utility model is to solve above-mentioned technical matters by following technical proposals:
A ship hydraulic jacking apparatus, its feature is, it includes:
At least two cylinder bodies, at least two cylinder body grooves;
Described cylinder body is configured to the section shape structure of ring-type circular arc, and all described cylinder body amalgamations form a circular ring together; That is to say, all cylinder bodies can piece together the cylinder body ring of an annulus, for being sheathed between the assembly parties such as large-scale nut when mounted.
Integratedly in cylinder body described in each be provided with at least one cylinder body groove;
A movable piston, the common cavity that forms of described piston and described cylinder body groove of being embedded with in described cylinder body groove;
Between the hydraulic efficiency pressure system of described cavity and described cylinder body outside, be communicated with at least one oil duct.
Preferably, described cylinder body is the ring-like structure of the semicircle of two symmetrical configuration, passes through at least one connecting panel bolt between described cylinder body.That is to say, connecting panel one side is fixed with a cylinder body, and opposite side is fixed another cylinder body, and fixing mode is and is spirally connected.
Preferably, described cylinder body groove is configured to the cylindrical groove structure of concentric isomery, sets firmly a convex shoulder on the cylindrical of one end of described piston, and the other end of this piston stretches into described cylinder body groove.
Preferably, described piston stretches into the degree of depth of the described cylinder body groove of being shorter in length than of described cylinder body groove, and the inwall of the bottom of described piston and described cylinder body groove can form described cavity all the time jointly.Described oil duct is connected with described cavity.Because described cavity exists all the time, hydraulic oil can provide pressure when implementing jacking, makes piston outwards eject the baseplane that departs from cylinder body groove.Prevented from touching cylinder body bottom land plane because of piston base, caused forming the generation of the situation of uplifting pressure.
Preferably, described piston stretches on the cylindrical of one end of described cylinder body groove and is provided with an annular groove, is provided with one group of sealing member in described annular groove.
Preferably, described one group of sealing member includes a seal ring and a nylon back-up ring.
Preferably, between described oil duct, be interconnected.Be set to be interconnected both makes to be interconnected between oil discharge passage herein, also can be understood as between cylinder body groove and has also interconnected.
Positive progressive effect of the present utility model is: the mode of splicing by a plurality of cylinder bodies forms and rises ejection device, when the parts that make rudder blade or structure similar are installed as screw propeller etc., without again large-scale nut being screwed off, as long as the connecting panel in ship hydraulic jacking apparatus, Bolt dismantling are removed, remove again ship hydraulic jacking apparatus, the installation number of times that has reduced large-scale nut, has reduced workmen's labour intensity.
Accompanying drawing explanation
Fig. 1 is the birds-eye view of the ship hydraulic jacking apparatus of the utility model preferred embodiment.
Fig. 2 is that the ship hydraulic jacking apparatus of the utility model preferred embodiment is along the cutaway view of A-A.
Fig. 3 is the work schematic diagram that the rudder blade of large ship is installed in the ship hydraulic jacking apparatus jacking of the utility model one preferred embodiment.
The specific embodiment
Lift a preferred embodiment below, and carry out by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
If Fig. 1 is the birds-eye view of the ship hydraulic jacking apparatus of the utility model preferred embodiment, Fig. 2 is that the ship hydraulic jacking apparatus of the utility model preferred embodiment is along the cutaway view of A-A.As shown in Fig. 1～2, the utility model comprises cylinder body 201, cylinder body 301, and cylinder body 201 is semicircle ring-like structure with cylinder body 301, and symmetrical configuration.The integrated cylinder body groove that is provided with the cylindrical groove structure of some concentric isomeries on this cylinder body 201, cylinder body 301, in cylinder body groove, activity is embedded with piston 202.
In addition, on the cylindrical of one end of piston 202, be installed with a convex shoulder, the other end of piston 202 stretches into cylinder body groove, and the length that piston 202 stretches into cylinder body groove is less than the degree of depth of cylinder body groove, the bottom of piston 202 can not be contacted with the baseplane of cylinder body groove all the time, that is to say that piston 202 and cylinder body groove inwall have cavity all the time.
In addition, the cylindrical that piston 202 stretches into one end of cylinder body groove is provided with annular groove, nylon back-up ring 203 and rubber " O " RunddichtringO 204 as sealing member are housed in annular groove, those sealing members seal when the ship hydraulic jacking apparatus 2 of the present embodiment is implemented jacking, this cylinder body 201, the cylindrical of cylinder body 301 is along circumferentially setting firmly an oil duct, this oil duct is female thread structure, and at this cylinder body 201, the cylindrical of cylinder body 301 is installed cock 205 along circumferentially setting firmly, some screws of pad 206, in screw, be provided with oilhole and connect with the cavity in cylinder body groove, make to connect mutually between oil duct and cylinder body groove, form the oil duct of built-in enclosed hydraulic oil, this cylinder body 201, cylinder body 301 respectively sets firmly a side in the outside perpendicular to semi-section, side sets firmly some screws that connecting panel 207 is installed, with connecting panel 207 and bolt 208 by two cylinder bodies 201 that semicircle is ring-like, cylinder body 301 connects into the whole ship hydraulic jacking apparatus 2 that forms, again at two cylinder bodies 201 that semicircle is ring-like, on the oil duct of cylinder body 301 with oil pipe of the prior art, valve member, compression indicator lifts be connected (in Fig. 1, not showing) such as pumps with hydraulic pressure hand, form an intactly hydraulic efficiency pressure system.
Cylinder body groove on cylinder body 301 according to cylinder body 201 on cylinder body groove symmetrical structure, identical setting.
Fig. 3 is that the ship hydraulic jacking apparatus 2 of the utility model one preferred embodiment is installed the work schematic diagram of the rudder blade of large ship in enforcement jacking.Rudder blade 4 when mounted, is first sling the pneumatic cucurbit of rudder blade 4 use, the taper hole of rudder blade 4 is aimed to the cone of rudder stock 1 and is carried out fit installation, and the male end at rudder stock 1 after fit screws on large-scale nut 3.Large-scale nut 3 is threaded to from large-scale nut areal of support one segment distance on rudder blade 4, be applicable to place the assembly parties such as the ring-like cylinder body 201 of two semicircles and cylinder body 301, piston 202, then with connecting panel 207 and bolt 208, the assembly parties such as the ring-like cylinder body 201 of two semicircles and cylinder body 301, piston 202 are connected to form to ship hydraulic jacking apparatus 2.And lift be connected (in Fig. 3, not showing) such as pumps with oil pipe of the prior art, valve member, compression indicator and hydraulic pressure hand on the oil duct of the ring-like cylinder body 201 of two semicircles, cylinder body 301, form an intactly hydraulic efficiency pressure system.When rudder blade 4 is implemented jacking installation, first with hydraulic pressure hand, lift pump pump pressure, the piston 202 in ship hydraulic jacking apparatus 2 is realized jacking under the effect of oil pressure, and rudder blade 4 is press-fit into place.Oil pressure and the displacement of rudder blade 4 when jacking when recording rudder blade 4 and being press-fit into place on compression indicator, repair the reference frame of installing as next time.Rudder blade 4 is installed and is met after technical requirements, discharges the oil pressure in ship hydraulic jacking apparatus 2, demounting bolt 208 and connecting panel 207, then remove ship hydraulic jacking apparatus 2, without again large-scale nut 3 being screwed off.After ship hydraulic jacking apparatus 2 is removed, continue to rotate up large-scale nut 3, contact with large-scale nut 3 areal of supports on rudder blade 4, and with special wrench, large-scale nut 3 is locked.Meanwhile, install and prevent the loosening stop motion mechanism of large-scale nut 3 (not showing in Fig. 3), stop motion mechanism welded and installed, in the groove of the thread end plane of rudder stock 1, has completed the erection work of rudder blade 4.
Although more than described the specific embodiment of the present utility model, it will be understood by those of skill in the art that these are only casehistorys, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence; can make various changes or modifications to these embodiments; for example; use the cylinder body groove of other shapes; or the cylinder body groove of other quantity; also or adopt three or above annular cylinder to be spliced into a full circle ring, but these changes and revise and all fall into protection domain of the present utility model.
Claims (7)
1. a ship hydraulic jacking apparatus, is characterized in that, it includes:
At least two cylinder bodies, at least two cylinder body grooves;
Described cylinder body is configured to the section shape structure of ring-type circular arc, and all described cylinder body amalgamations form a circular ring together;
Integratedly in cylinder body described in each be provided with at least one cylinder body groove;
A movable piston, the common cavity that forms of described piston and described cylinder body groove of being embedded with in described cylinder body groove;
Between the hydraulic efficiency pressure system of described cavity and described cylinder body outside, be communicated with at least one oil duct.
2. ship hydraulic jacking apparatus as claimed in claim 1, is characterized in that, described cylinder body is the ring-like structure of the semicircle of two symmetrical configuration, passes through at least one connecting panel bolt between described cylinder body.
3. ship hydraulic jacking apparatus as claimed in claim 2, is characterized in that, described cylinder body groove is configured to the cylindrical groove structure of concentric isomery, sets firmly a convex shoulder on the cylindrical of one end of described piston, and the other end of this piston stretches into described cylinder body groove.
4. ship hydraulic jacking apparatus as claimed in claim 3, is characterized in that, described piston stretches into the degree of depth of the described cylinder body groove of being shorter in length than of described cylinder body groove, and the inwall of the bottom of described piston and described cylinder body groove can form described cavity all the time jointly;
Described oil duct is connected with described cavity.
5. ship hydraulic jacking apparatus as claimed in claim 4, is characterized in that, described piston stretches on the cylindrical of one end of described cylinder body groove and is provided with an annular groove, is provided with one group of sealing member in described annular groove.
6. ship hydraulic jacking apparatus as claimed in claim 5, is characterized in that, described one group of sealing member includes a seal ring and a nylon back-up ring.
7. ship hydraulic jacking apparatus as claimed in claim 1, is characterized in that, between described oil duct, is interconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449400.1U CN203461761U (en) | 2013-07-25 | 2013-07-25 | Hydraulic jacking device for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320449400.1U CN203461761U (en) | 2013-07-25 | 2013-07-25 | Hydraulic jacking device for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203461761U true CN203461761U (en) | 2014-03-05 |
Family
ID=50174137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320449400.1U Expired - Fee Related CN203461761U (en) | 2013-07-25 | 2013-07-25 | Hydraulic jacking device for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203461761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876935A (en) * | 2022-04-27 | 2022-08-09 | 中国舰船研究设计中心 | Internal and external balance type hydraulic nut for mounting ship propeller and mounting method thereof |
-
2013
- 2013-07-25 CN CN201320449400.1U patent/CN203461761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876935A (en) * | 2022-04-27 | 2022-08-09 | 中国舰船研究设计中心 | Internal and external balance type hydraulic nut for mounting ship propeller and mounting method thereof |
| CN114876935B (en) * | 2022-04-27 | 2024-04-26 | 中国舰船研究设计中心 | Internal and external balance type hydraulic nut for installing ship propeller and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20210725 |