CN109263841B - Installation method of water jet propulsion device - Google Patents
Installation method of water jet propulsion device Download PDFInfo
- Publication number
- CN109263841B CN109263841B CN201811272605.0A CN201811272605A CN109263841B CN 109263841 B CN109263841 B CN 109263841B CN 201811272605 A CN201811272605 A CN 201811272605A CN 109263841 B CN109263841 B CN 109263841B
- Authority
- CN
- China
- Prior art keywords
- shell
- water jet
- jet propulsion
- propulsion device
- impeller
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of ships and discloses a water jet propulsion device and an installation method, wherein the water jet propulsion device comprises a steering device, a diffuser, an installation seat plate, a shell, a flow channel and an impeller shaft, the installation seat plate is fixed on a ship body structure, the shell is fixed on the installation seat plate, the diffuser is fixed on the shell, the steering device is connected to the tail end of the diffuser, the flow channel is connected with the shell through an elbow, one end of the impeller shaft is connected with a power system of a ship, the other end of the impeller shaft penetrates through the flow channel to be connected with the impeller, and the impeller is arranged in the shell. The water jet propulsion device and the installation method provided by the invention are convenient for installation of the water jet propulsion device, ensure the installation quality and improve the installation efficiency. The invention has simple operation, good use effect and easy popularization and use.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a water jet propulsion device and an installation method.
Background
Some high-speed ships require excellent rapidity, maneuverability, seaworthiness in high sea, cruising economy, short-distance antagonism and flexible sea law enforcement capability besides high navigation safety and high viability, and many high-speed ships adopt a plurality of sets of high-power water jet propulsion devices as main power equipment. How to ensure the verticality of the water jet propulsion device and the tail sealing plate, the on-site matching and correcting installation precision of the elbow of the water jet propulsion device and the clearance of each blade of the propeller meet the requirements is the core technical problem of the shipment of the high-power water jet propulsion device.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the mounting method of the water jet propulsion device, which is convenient for mounting the water jet propulsion device, ensures the mounting quality and improves the mounting efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a water jet propulsion unit, is including turning to device, diffuser, installation bedplate, casing, runner and impeller shaft, the installation bedplate is fixed on hull structure, the casing is fixed on the installation bedplate, the diffuser is fixed on the casing, turn to the device and connect the tail end of diffuser, the runner with the casing passes through the elbow and connects, the driving system of boats and ships is connected to the one end of impeller shaft, and the other end passes the impeller is connected to the runner, just the impeller is located in the casing.
Preferably, the impeller shaft and the impeller are connected through a coupling and locked through a shaft locking device.
Preferably, the impeller shaft is sleeved with an intermediate bearing, and the intermediate bearing is located between the flow passage and the power system.
Preferably, the base of the middle bearing is provided with an adjusting jackscrew.
A method of installing a water jet propulsion unit, comprising the steps of:
determining a central line of a shaft system as a datum line for positioning and mounting equipment;
secondly, positioning and installing an installation seat plate of the water jet propulsion device by taking the central line of the shaft system as a reference through primary illumination;
determining a machining reference boring hole circle and a rechecking reference checking circle of the welded mounting base plate of the water jet propulsion device by taking the shaft system center line as a reference and performing secondary illumination;
fourthly, mounting the on-site boring machine by taking the boring circle and the inspection circle as references, and performing plane machining on the end face of the mounting base plate propelled by water spraying to ensure the perpendicularity of the end face of the mounting base plate and the central line of the shafting;
determining the mounting position of a shell of the water jet propulsion device by using the central line of the shaft system as a reference through third illumination, manufacturing a template according to a flange screw hole at the large end of the shell, positioning and drilling on a mounting base plate, and connecting the shell with the mounting base plate through bolts;
taking the small-end flange of the installed shell as a reference datum, cutting off allowance on a flow channel according to elbow size data of the water jet propulsion device, and installing an elbow;
hoisting the impeller shaft, the diffuser and the steering device to a mounting position, and connecting and fixing the impeller shaft, the diffuser and the steering device with the shell;
measuring and adjusting the clearance between the blades of the impeller of the water jet propulsion device and the shell, and ensuring that the distance between the blades and the shell meets the requirement;
and step nine, measuring and recording the clearance between the upper point, the lower point, the left point and the right point between the coupling and the impeller, and screwing down the foundation bolt of the middle bearing after the requirement is met.
Preferably, in the first step, the shafting center line is determined by finding the shafting head and tail base points according to the rib position data, midship data and base line height data.
Preferably, in the eighth step and the ninth step, the measurement of the gap is performed by a feeler gauge.
Preferably, in the ninth step, the deviations of the upper, lower, left and right four points need to be consistent, and the deviation range is ± 0.15 mm.
The invention has the beneficial effects that: the installation method of the water jet propulsion device provided by the invention is convenient for installing the water jet propulsion device, ensures the installation quality and improves the installation efficiency. The invention has simple operation, good use effect and easy popularization and use.
Drawings
Fig. 1 is a schematic structural view of a water jet propulsion device of the present invention.
Wherein: 1-steering device, 2-diffuser, 3-mounting base plate, 4-shell, 5-flow channel, 6-impeller shaft, 7-impeller, 8-intermediate bearing and 9-elbow.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the water jet propulsion device of the embodiment includes a steering device 1, a diffuser 2, an installation seat plate 3, a housing 4, a flow channel 5 and an impeller shaft 6, wherein the installation seat plate 3 is fixed on a hull structure, the housing 4 is fixed on the installation seat plate 3, the diffuser 2 is fixed on the housing 4, the steering device 1 is connected to a tail end of the diffuser 2, the flow channel 5 is connected to the housing 4 through an elbow 9, one end of the impeller shaft 6 is connected to a power system of a ship, the other end of the impeller shaft passes through the flow channel 5 to be connected to an impeller 7, and the impeller 7 is disposed in the housing 4.
The water jet propulsion device of the water jet propulsion device based on the technical characteristics is convenient to install, ensures the installation quality and improves the installation efficiency. The invention has simple operation, good use effect and easy popularization and use.
In this embodiment, the impeller shaft 6 and the impeller 7 are coupled by a coupling and locked by a shaft locker, and the coupling is disposed in the diffuser 2.
In this embodiment, the impeller shaft 6 is sleeved with a middle bearing 8, the middle bearing 8 is located between the flow channel 5 and the power system, and a base of the middle bearing 8 is provided with an adjusting jackscrew. When the impeller shaft 6 is hoisted, the deviation of the impeller shaft 6 is checked firstly, and when the deviation does not meet the requirement, the deviation range of the impeller shaft 6 is ensured to be within the required range by adjusting the adjusting jackscrew, so that the adjustment is simple and convenient, and the installation quality of the impeller shaft 6 is ensured.
In order to solve the technical problem, the invention also provides an installation method of the water jet propulsion device, which comprises the following steps:
determining a central line of a shaft system as a datum line for positioning and installing equipment. The center line of the shafting finds the head and tail base points of the shafting according to the rib position data, midship data and baseline height data and determines the head and tail base points;
in addition, before the center line of the shafting is determined, the condition that the main hull after the front wall of the cabin is folded and welded is ensured to be closed and welded, the fire straightening work is finished, the hull is freely placed on the ship moving trolley, all hull rigid supports in the shafting area are changed into wood supports, large equipment enters the cabin to be positioned or ballast with the same weight is additionally arranged at the corresponding position, finally, the fore-aft reference point position of the center line of the shafting is determined according to drawing data, and the record is made to determine the center line of the shafting.
And step two, positioning and installing the installation seat plate 3 of the water jet propulsion device by taking the central line of the shaft system as a reference through primary illumination. When the device is implemented, the fore and aft datum points of the center line of the shaft system are found, the angle steel is used for manufacturing a stay wire frame on site, the stay wire frame is provided with two light targets, the upper position line and the lower position line are marked on the mounting base plate of the water jet propulsion device, then the light targets are fixed at the center of the mounting base plate 3, the light targets are adjusted to be coincident with the fore and aft datum points by a micrometering collimating telescope, and the symmetrical welding is carried out after the point welding positioning.
And step three, determining the machining reference boring hole circle and the rechecking reference checking circle of the mounting base plate 3 of the water jet propulsion device after welding by taking the shaft system center line as a reference through secondary illumination. After the installation base plate 3 is welded, an illuminating light target is installed in an inner hole of the installation base plate 3, a micrometering collimating telescope is used for adjusting the position to be coincident with a fore-aft datum point, a boring hole circle is marked according to the position of the light target adjusted by illumination, a circle is checked, and a foreign punching mark is marked.
And fourthly, mounting the on-site boring machine by taking the boring circle and the inspection circle as references, and performing plane machining on the end surface of the mounting base plate 3 propelled by water spraying, wherein the perpendicularity between the machined plane and the axis line meets the condition that the inclination of the radius relative to the axis is less than or equal to 0.05 degrees (0.8mm/m), so that the perpendicularity between the end surface of the mounting base plate 3 and the axis line is ensured.
And step five, determining the mounting position of the shell 4 of the water jet propulsion device by taking the central line of the shaft system as a reference through third illumination, manufacturing a template according to a flange screw hole at the large end of the shell 4, positioning and drilling on the mounting base plate 3, and connecting the shell 4 with the mounting base plate 3 by using bolts. When the device is installed, a light target is installed at the large end of the shell 4, and the center of the light target is aligned with the center line of the shaft system through illumination. According to 4 big end flange screw preparation templates of casing, fix a position and drill on installation bedplate 3, be connected casing 4 and installation bedplate 3 with the bolt, the installation contact surface should evenly be scribbled sealed glue and compress tightly sealed during the connection, and glue thickness will be even, and countersunk head bolt top and bottom are all filled up with scribbling Sikaflex sealed glue and are played sealed and insulating effect.
And step six, taking the small-end flange of the installed shell 4 as a reference datum, cutting off allowance on the flow channel 5 according to size data of the elbow 9 of the water jet propulsion device, and installing the elbow 9. When the device is installed, the corresponding distances of the upper position and the lower position of the two ends of the elbow 9 are measured respectively, then the distance from the flow channel 5 to the small end of the shell 4 is checked, the size of the redundant flow channel 5 is cut off, and then the elbow 9 of the water jet propulsion device is connected and installed.
Wherein the elbow 9 is aligned with the housing 4 to ensure that the deviation of the alignment of the inner surfaces is not more than 1. Bolt holes are scribed on the elbow flange according to the screw holes of the shell flange, and after the elbow 9 is taken down, bolt holes are drilled on the GRP elbow. And the GRP elbow is installed back into the shell again to ensure alignment, and the alignment deviation is not more than 1. 4 screws, washers and nuts are arranged to fix the elbow on the shell 4. And placing the runner flange on the inlet and performing spot welding, marking bolt holes on the elbow flange according to the runner flange bolt holes, taking down the elbow 9, and drilling bolt holes on the elbow 9. And welding the flow channel flange on the inlet of the flow channel 5, smearing the sealant on the flow channel flange, and troweling the surface of the flange. The elbow 9 is reinstalled between the inlet of the flow channel and the housing 4, noting that the elbow 9 has O-rings between the inlet of the flow channel and the housing flange, and the fasteners at the two ends of the elbow 9 are installed.
And step seven, hoisting the impeller shaft 6, the diffuser 2 and the steering device 1 to the installation position through hoisting, and connecting and fixing the impeller shaft, the diffuser 2 and the steering device 1 with the shell 4. During hoisting, hoisting is carried out in a mode of arranging hoisting process holes. When the impeller shaft is installed, the shaft locking device in the diffuser 2 is firstly removed, then watertight grease is smeared on the spline at the rear end of the impeller shaft 6, the impeller shaft 6 is inserted into the coupling joint in the diffuser 2, and the shaft locking device is installed again.
And step eight, measuring and adjusting the gap between the blades of the impeller 7 of the water jet propulsion device and the shell 4 to ensure that the distance between the blades and the shell 4 meets the requirement, measuring through a feeler gauge, firstly manually rotating the impeller clockwise, measuring the gap between the impeller 7 and the shell 4 when the impeller 7 is positioned at the top, measuring and recording the gaps at the front end point, the rear end point and the middle point of each blade of the impeller 7, and requiring that the distance between the blades of the impeller 7 and the shell 4 meets the requirement.
And step nine, measuring and recording the clearance between the upper point, the lower point, the left point and the right point between the coupling and the impeller 7, and screwing down the foundation bolt of the middle bearing 8 after the requirement is met. Wherein, the deviation of four points about need unanimous, and the deviation scope is 0.15mm, measures through the clearance gauge when measuring.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A method for mounting a water jet propulsion unit, comprising: the water jet propulsion device comprises a steering device, a diffuser, an installation seat plate, a shell, a flow channel and an impeller shaft, wherein the installation seat plate is fixed on a hull structure, the shell is fixed on the installation seat plate, the diffuser is fixed on the shell, the steering device is connected to the tail end of the diffuser, the flow channel is connected with the shell through an elbow, one end of the impeller shaft is connected with a power system of a ship, the other end of the impeller shaft penetrates through the flow channel to be connected with the impeller, the impeller is arranged in the shell, and the installation method comprises the following steps:
determining a central line of a shaft system as a datum line for positioning and mounting equipment;
secondly, positioning and installing an installation seat plate of the water jet propulsion device by taking the central line of the shaft system as a reference through primary illumination;
determining a machining reference boring hole circle and a rechecking reference checking circle of the welded mounting base plate of the water jet propulsion device by taking the shaft system center line as a reference and performing secondary illumination;
fourthly, mounting the on-site boring machine by taking the boring circle and the inspection circle as references, and performing plane machining on the end face of the mounting base plate propelled by water spraying to ensure the perpendicularity of the end face of the mounting base plate and the central line of the shafting;
determining the mounting position of a shell of the water jet propulsion device by using the central line of the shaft system as a reference through third illumination, manufacturing a template according to a flange screw hole at the large end of the shell, positioning and drilling on a mounting base plate, and connecting the shell with the mounting base plate through bolts;
taking the small-end flange of the installed shell as a reference datum, cutting off allowance on a flow channel according to elbow size data of the water jet propulsion device, and installing an elbow;
hoisting the impeller shaft, the diffuser and the steering device to a mounting position, and connecting and fixing the impeller shaft, the diffuser and the steering device with the shell;
measuring and adjusting the clearance between the blades of the impeller of the water jet propulsion device and the shell, and ensuring that the distance between the blades and the shell meets the requirement;
measuring and recording the clearance between an upper point, a lower point, a left point and a right point between the coupling and the impeller, and screwing down the foundation bolt of the middle bearing after the requirement is met;
when the shell is installed, a light target is installed at the large end of the shell firstly, the center of the light target is aligned to the central line of a shaft system through illumination, a template is manufactured according to a flange screw hole at the large end of the shell, positioning and drilling are carried out on an installation base plate, the shell is connected with the installation base plate through bolts, the installation contact surface is uniformly coated with sealant for compression and sealing during connection, the thickness of the sealant is uniform, the top and the bottom of a countersunk head bolt are filled with the sealant coated with Sikaflex, and the sealing and insulating effects are achieved.
2. A method of installing a water jet propulsion device as claimed in claim 1, wherein: in the first step, the shafting central line finds the shafting head and tail base points according to the rib position data, midship data and base line height data to determine.
3. A method of installing a water jet propulsion device as claimed in claim 1, wherein: in the eighth step and the ninth step, the clearance is measured through a feeler gauge.
4. A method of installing a water jet propulsion device as claimed in claim 1, wherein: in the ninth step, the deviation of the upper, lower, left and right four points needs to be consistent, and the deviation range is +/-0.15 mm.
5. A method of installing a water jet propulsion device as claimed in claim 1, wherein: the impeller shaft is connected with the impeller through a coupling and locked through a shaft locking device.
6. A method of installing a water jet propulsion device as claimed in claim 1, wherein: the impeller shaft is sleeved with a middle bearing, and the middle bearing is located between the flow channel and the power system.
7. A method of mounting a water jet propulsion unit as claimed in claim 6, wherein: and the base of the middle bearing is provided with an adjusting jackscrew.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272605.0A CN109263841B (en) | 2018-10-30 | 2018-10-30 | Installation method of water jet propulsion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811272605.0A CN109263841B (en) | 2018-10-30 | 2018-10-30 | Installation method of water jet propulsion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109263841A CN109263841A (en) | 2019-01-25 |
| CN109263841B true CN109263841B (en) | 2021-05-11 |
Family
ID=65193993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811272605.0A Active CN109263841B (en) | 2018-10-30 | 2018-10-30 | Installation method of water jet propulsion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109263841B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093666A (en) * | 1993-02-20 | 1994-10-19 | 约瑟夫·比克有限公司施奥泰尔船厂 | Drivor of spraying of water |
| US6132269A (en) * | 1999-03-09 | 2000-10-17 | Outboard Marine Corporation | Cantilever jet drive package |
| CN101962065A (en) * | 2010-10-20 | 2011-02-02 | 武昌船舶重工有限责任公司 | Installation process and tooling of impeller casing of marine water jet propulsion device |
| CN102815370A (en) * | 2012-09-04 | 2012-12-12 | 中船桂江造船有限公司 | One-step centering ship shafting mounting method |
| CN104129489A (en) * | 2014-07-21 | 2014-11-05 | 武汉船用机械有限责任公司 | Integrated waterjet propulsion device and manufacturing and assembling method thereof |
| CN205186495U (en) * | 2015-11-30 | 2016-04-27 | 嘉善贯德精密锻造有限公司 | Marine water -jet propulsion system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102378872B1 (en) * | 2013-03-15 | 2022-03-28 | 스테판 브로이나우스키 | Marine ducted propeller jet propulsion system |
| CN108609147B (en) * | 2018-05-18 | 2020-01-10 | 中船黄埔文冲船舶有限公司 | Ship water inlet flow channel and manufacturing and mounting method |
-
2018
- 2018-10-30 CN CN201811272605.0A patent/CN109263841B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093666A (en) * | 1993-02-20 | 1994-10-19 | 约瑟夫·比克有限公司施奥泰尔船厂 | Drivor of spraying of water |
| US6132269A (en) * | 1999-03-09 | 2000-10-17 | Outboard Marine Corporation | Cantilever jet drive package |
| CN101962065A (en) * | 2010-10-20 | 2011-02-02 | 武昌船舶重工有限责任公司 | Installation process and tooling of impeller casing of marine water jet propulsion device |
| CN102815370A (en) * | 2012-09-04 | 2012-12-12 | 中船桂江造船有限公司 | One-step centering ship shafting mounting method |
| CN104129489A (en) * | 2014-07-21 | 2014-11-05 | 武汉船用机械有限责任公司 | Integrated waterjet propulsion device and manufacturing and assembling method thereof |
| CN205186495U (en) * | 2015-11-30 | 2016-04-27 | 嘉善贯德精密锻造有限公司 | Marine water -jet propulsion system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109263841A (en) | 2019-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108216487B (en) | Process method for installing rudder trunk in staged stage | |
| CN101323351B (en) | Shipping rudder system lighting and mounting method | |
| CN102923252A (en) | Full rotation steering oar device installation method | |
| CN109606533A (en) | A kind of feet bolt hole localization method of marine main engine and gear-box | |
| CN108189964B (en) | Method for determining ship stern baseline during shafting centering in ship construction | |
| CN111268055A (en) | Straight blade propeller mounting method and mounting base | |
| CN108609147B (en) | Ship water inlet flow channel and manufacturing and mounting method | |
| CN109263841B (en) | Installation method of water jet propulsion device | |
| CN114084311A (en) | High-precision installation method for full-slewing device | |
| CN111121670A (en) | Laser measurement method for ship shafting | |
| CN111780648B (en) | Semi-submerged propeller propulsion unit angle measurement tool and measurement method | |
| CN115401406B (en) | Finish machining method of CPP variable-pitch hub assembly | |
| CN105665770A (en) | Boring technology of rudder horn | |
| CN109591958B (en) | Method for accurately positioning track of ship tail shaft entering trolley | |
| CN111098996A (en) | Installation process of telescopic propeller of ship | |
| CN114408120B (en) | Positioning and mounting method for honeycomb duct | |
| CN111591409B (en) | Process method for improving forward reverse propelling precision of construction process | |
| CN109823469B (en) | Ship main engine positioning method | |
| CN114655384B (en) | Installation method of ship telescopic azimuth thruster | |
| CN111942544B (en) | Quick positioning method for crane cylinder | |
| CN115752406A (en) | Non-parallel double-axis positioning method | |
| CN113320659B (en) | Method for assembling flange and barrel of double-angle steering oar of ship | |
| CN102853729B (en) | Reciprocating type helm steering mechanism positioning measuring device | |
| CN1958390A (en) | Multifunctional equipment of tool set up in use for installing towed bird type electric propulsion plant | |
| CN111071404A (en) | Ship shafting adjusting method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |