CN111015593B - Marine motor pump shaft dismantling method - Google Patents
Marine motor pump shaft dismantling method Download PDFInfo
- Publication number
- CN111015593B CN111015593B CN201911308621.5A CN201911308621A CN111015593B CN 111015593 B CN111015593 B CN 111015593B CN 201911308621 A CN201911308621 A CN 201911308621A CN 111015593 B CN111015593 B CN 111015593B
- Authority
- CN
- China
- Prior art keywords
- shaft
- pump shaft
- sea water
- water pump
- pump
- 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
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a method for dismantling a pump shaft of a marine motor. Be provided with the fixed baseplate on the welding frame, through flat gasket and straining rod hexagon nut through supplementary straining rod and welding frame installation as an organic whole, the front end is provided with the motor mounting panel, both sides are fixed through the clamp plate, fix on fixed baseplate through full-thread hexagon head bolt, the sea water pump motor is installed to the lower part, there is the pump shaft sea water pump motor upper portion, arrange in the lever front end breach, cross-under spindle end rotation axis cover through the back round pin axle, upper portion is fixed through gasket and hexagon nut, lever supporting shaft frame is fixed on fixed baseplate through the adjustment backing plate, upper portion is fixed with the lever lateral part through middle round pin axle, there is the hydro-cylinder through preceding round pin hub connection before the lever front portion, upper portion is fixed on the axle through last round pin axle, the hydro-cylinder support is connected with welding frame upper portion, install high-frequency induction heating machine on the pump shaft and heat the pump shaft. The shaft sleeve is disassembled through high-frequency heating. The method is suitable for being used as a method for disassembling the marine water pump shaft sleeve.
Description
Technical Field
The invention relates to the field of ships, in particular to a method for disassembling a pump shaft of a ship motor.
Background
In the annual dock maintenance of various ships, the maintenance of the pump is an important project which is necessary to be done every time, the work task is very heavy, particularly, the design of the marine pump of an old ship often selects an interference fit mode, the modes of cold loading, drying loading and the like are adopted during installation, a motor shaft of the pump is almost completely worn out to exceed the use requirement in long-term use, and under the condition, an out-of-tolerance motor pump shaft of the pump needs to be detached and replaced. The existing method comprises the following steps: and (3) aiming at the special temporary tool for dismantling and manufacturing the single motor pump shaft, cold drawing the single motor pump shaft by using a hydraulic jack or adopting a flame heating mode, and hot drawing by matching with the jack or adopting a destructive dismantling mode. In the mode, after one ship is repaired, a plurality of sets of temporary dismantling tools with different models need to be manufactured, a large amount of time, manpower and materials are wasted, the temporary tools are rough in manufacturing and are not suitable for storage and management in a warehouse, and the temporary dismantling tools are manufactured according to the model of the repaired sea water pump when the next ship is inspected. Flame heating is difficult to ensure that the periphery of the motor pump shaft is uniformly heated and simultaneously expands outwards, due to the reasons, the motor shaft is often heated locally and cannot expand in a stepped manner, so that the probability of successful one-time dismantling is very low, when the motor pump shaft and the motor shaft to be dismantled are cooled to room temperature, the heating operation is repeated, the motor shaft is heated repeatedly and passively, the mechanical property of the motor shaft is greatly damaged, and the service life of the motor shaft is greatly reduced. Meanwhile, the oil gas in the cabin is large when the ship is maintained, and great potential safety hazards exist in open fire operation.
The method proves that currently, no good strategy exists in the aspects of efficiency and quality for disassembling the pump shaft of the marine pump.
Disclosure of Invention
The invention provides a method for dismantling a pump shaft of a marine motor, aiming at solving the problem of dismantling the pump shaft of the marine motor. According to the method, the technical problem of disassembling the pump shaft of the sea water pump is solved through a sea water pump disassembling tool.
The technical scheme adopted by the invention for solving the technical problems is as follows:
pump shaft extracting tool:
the welding frame is provided with a fixed base plate, the fixed base plate is integrally installed with the welding frame through an auxiliary tensioning rod by a flat gasket and a tensioning rod hexagon nut, the front end of the fixed base plate is provided with a sea water pump motor mounting plate, two sides of the sea water pump motor mounting plate are fixed by a pressing plate, the sea water pump motor mounting plate is fixed on the fixed base plate by a full-thread hexagon head bolt, the lower part of the sea water pump motor mounting plate is provided with a sea water pump motor, one side of the sea water pump motor is provided with a horizontal motor mounting frame, the upper part of the sea water pump motor is provided with a pump shaft, a rotating shaft sleeve is sleeved on the pump shaft and is arranged in a notch at the front end of the lever, the rotating shaft sleeve is connected with the rotating shaft sleeve in a penetrating way by a rear pin shaft, the upper part of the rotating shaft sleeve is fixed by the gasket and the hexagon nut, the lever support frame is fixed on the fixed base plate by an adjusting backing plate, the upper part of the lever is fixed with the lateral part of the lever by a middle pin shaft, the front part of the lever is connected with an oil cylinder by the front pin shaft, the upper part of the oil cylinder is fixed on the copper sleeve through an upper pin shaft, the oil cylinder support is connected with the upper part of the welding frame, the pump shaft is heated by using an electromagnetic coil of a high-frequency induction heating machine on the pump shaft, and the pump shaft of the sea water pump is lifted through a lever.
Pump shaft disassembly:
the first step is as follows: the sea water pump shaft and the sea water pump motor which are detached from the ship are integrally installed on the sea water pump motor installation plate and are reliably fixed through the full-thread hexagon head bolt.
The second step is that: the electromagnetic coil is sleeved on the pump shaft, then the spindle end rotating shaft sleeve on the lever is sleeved on the pump shaft, the gasket is installed, and the spindle end rotating shaft sleeve and the gasket are fixed through the hexagon nut.
The third step: an electric hydraulic oil pump is used for pumping oil to the oil cylinder, so that the lever applies a certain pulling force to the pump shaft in advance. The pulling force is not too large, and the pressure gauge at the outlet of the electric hydraulic pump is used for needle movement.
The fourth step: starting a high-frequency induction heater to supply power to an electromagnetic coil, and pressing a heating switch on a handheld handle of the electromagnetic coil to heat the pump shaft; meanwhile, the electric hydraulic pump is continuously used for pumping oil to the oil cylinder; along with the rise of the temperature of the pump shaft, the lever drives the main shaft end rotating shaft sleeve to slowly jack up the pump shaft, so that the pump shaft is jacked and disassembled while being heated until the pump shaft is completely disassembled.
The fifth step: and turning off the high-frequency induction heating machine, detaching the electromagnetic coil, and detaching the pump shaft from the main shaft end rotating shaft sleeve after the pump shaft is completely cooled, so that the sea water pump shaft and the sea water pump motor are detached.
In summary: the sea water pump motor is installed on the sea water pump motor installation plate, and props against the rotating shaft sleeve through the rear pin shaft, and the lever and the oil cylinder are used for lifting the rotating shaft sleeve on the sea water pump shaft, so that the sea water pump shaft is detached.
The positive effects are as follows: according to the invention, the high-frequency induction heating machine and the pump shaft dismantling device are matched for use, and the pump shaft dismantling device can be used for quickly dismantling the rotating shaft sleeve of the motor pump shaft while the high-frequency induction heating machine outputs constant heating temperature, so that the purpose of dismantling the pump shaft is achieved. The heating and the dismounting are carried out simultaneously in the process, so that the heating is completely acted on the rotating shaft sleeve of the motor pump shaft, and the heat is not wasted; the electromagnetic coil is quickly heated, the pump shaft is disassembled before heat is not transferred to the motor shaft, and the motor shaft is fully protected, so that the method is efficient and simple, and the disassembly quality is high. The marine sea water pump shaft dismounting method is suitable for being applied as a marine sea water pump shaft dismounting method.
Drawings
FIG. 1 is a schematic structural view of a motor pump shaft sleeve removing device;
FIG. 2 is a side view of the motor pump shaft removal apparatus;
FIG. 3 is a schematic view of a high-frequency electromagnetic induction heating apparatus.
1. The device comprises a fixed base plate, 2 a welding frame, 3 a lever support frame, 4 a middle pin shaft, 5 an adjusting base plate, 6 a lever, 7 a rotating shaft sleeve, 8 a gasket, 9 a sea water pump motor mounting plate, 10 a pressing plate, 11 a front pin shaft, 12 an oil cylinder support, 13 a copper sleeve, 14 an upper pin shaft, 15 an auxiliary tensioning rod, 16 a flat gasket, 17 a rear pin shaft, 18 a horizontal motor mounting frame, 19 a full-thread hexagon head bolt, 20 a hexagon nut, 21 a tensioning rod hexagon nut, 22 a sea water pump motor, 23 a pump shaft, 24 an oil cylinder, 25 a high-frequency induction heating machine and 26 an electromagnetic coil.
Detailed Description
Pump shaft axle sleeve extracting tool: a fixed base plate 1 is arranged on a welding frame 2, the fixed base plate 1 is integrally installed with the welding frame 2 through an auxiliary tensioning rod 15 through a flat gasket 16 and a tensioning rod hexagon nut 21, a sea water pump motor mounting plate 9 is arranged at the front end of the fixed base plate 2, two sides of the sea water pump motor mounting plate 9 are fixed through a pressing plate 10, the sea water pump motor mounting plate 9 is fixed on the fixed base plate 1 through a full-thread hexagon head bolt 19, a sea water pump motor 22 is installed at the lower part of the sea water pump motor mounting plate 9, a horizontal motor mounting frame 18 is arranged at one side of the sea water pump motor, a pump shaft 23 is arranged at the upper part of the sea water pump motor 22, a rotary shaft sleeve 7 is sleeved on the pump shaft 23, the rotary shaft sleeve 7 is arranged in a gap at the front end of a lever 6 and is connected with the rotary shaft sleeve 7 in a penetrating manner through a rear pin shaft 17, the upper part of the rotary shaft sleeve 7 is fixed through a gasket 8 and a hexagon nut 20, and the lever supporting shaft frame 3 is fixed on the fixed base plate 1 through an adjusting backing plate 5, the upper part of the pump shaft 23 is fixed with the side part of the lever 6 through the middle pin shaft 4, the front part of the lever 6 is connected with an oil cylinder 24 through a front pin shaft 11, the upper part of the oil cylinder 24 is fixed on a copper sleeve 13 through an upper pin shaft 14, an oil cylinder support 12 is connected with the upper part of the welding frame 2, an electromagnetic coil 26 of a high-frequency induction heating machine 25 is used for heating the pump shaft 23 on the pump shaft 23, and the pump shaft 23 of the sea water pump is lifted through the lever 6.
And a copper sleeve is sleeved outside the rotating shaft sleeve 7.
The high-frequency induction heater 25 is internally provided with an electromagnetic coil 26, and heats the sea water pump shaft 23 by using high-frequency induction.
The rotating shaft sleeve 7 is a pump shaft bearing sleeve.
The welding frame 2 is a frame structure formed by welding metal steel pipes.
Example 1
Take the disassembly of a ship's vertical sea water pump as an example. The sea water pump and the motor are installed in a non-transitional mode, the shell of the sea water pump is directly connected with the shell of the motor through a fastener, the sea water pump shaft is made into a half sleeve and a half shaft, the half sleeve is connected with the motor shaft in an interference fit mode through a key transmission mode, the half shaft extends into the centrifugal pump shell and is connected with the impeller in a small clearance fit mode through a key transmission mode. The half-sleeve part and the motor shaft are corroded into a whole after the motor pump is used for a long time, and when the half shaft is worn, the use requirement of the sea water pump cannot be met, and the motor pump shaft needs to be disassembled. The steps and process for disassembling the pump shaft of the sea water pump are specifically described.
The pump shaft dismounting method comprises the following steps:
the first step is as follows: the sea water pump shaft 23 and the sea water pump motor 22 which are detached from the ship are integrally installed on the sea water pump motor installation plate 9 and are reliably fixed through full-thread hexagon bolts.
The second step is that: the electromagnetic coil 26 is sleeved on the pump shaft 23, then the spindle end rotating shaft sleeve 7 on the lever 6 is sleeved on the pump shaft 23, the gasket 8 is installed, and the spindle end rotating shaft sleeve 7 and the gasket 8 are fixed through the hexagon nut 20.
The third step: an electro-hydraulic oil pump is used for pumping oil to the oil cylinder 24, so that the lever 6 applies a certain pulling force to the pump shaft 23 in advance. The pulling force is not too large, and the pressure gauge at the outlet of the electric hydraulic pump is used for needle movement.
The fourth step: the high-frequency induction heater 25 is started to supply power to the electromagnetic coil 26, and the pump shaft 23 is heated by pressing a heating switch on a handheld handle of the electromagnetic coil 26; meanwhile, the electric hydraulic pump is continuously used for pumping oil to the oil cylinder 24; along with the rise of the temperature of the pump shaft 23, the lever 6 drives the main shaft end rotating shaft sleeve 7 to slowly jack up the pump shaft 23, heating and jacking disassembly are achieved until the pump shaft 23 is completely disassembled, and the process takes about 5 minutes.
The fifth step: and (3) turning off the high-frequency induction heater 25, detaching the electromagnetic coil 26, and detaching the pump shaft 23 from the main shaft end rotating shaft sleeve 7 after the pump shaft 23 is completely cooled, so that the pump shaft 23 and the sea water pump motor 22 are detached.
In summary: the sea water pump motor 22 is arranged on the sea water pump motor mounting plate 9, and is propped against the rotating shaft sleeve 7 through the rear pin shaft 17, and then the lever 6 and the oil cylinder 24 are utilized to lift the rotating shaft sleeve 7 on the sea water pump shaft 23, so that the sea water pump shaft 23 is detached.
The method is characterized in that:
according to the method, the pump shaft of the sea water pump is disassembled by using a pump shaft disassembling tool, firstly, a sea water pump motor is installed on a sea water pump motor installation plate, a lever and a rear pin shaft are used for enabling the lever to generate upward lifting force under the action of an oil cylinder, a rotary shaft sleeve is pulled out from the pump shaft, and the pump shaft is disassembled from the sea water pump.
Claims (5)
1. A marine motor pump shaft dismantling method is characterized by comprising the following steps:
pump shaft extracting tool:
a fixed base plate (1) is arranged on a welding frame (2), the fixed base plate (1) is installed with the welding frame (2) into a whole through an auxiliary tensioning rod (15) by a flat gasket (16) and a tensioning rod hexagon nut (21), a sea water pump motor mounting plate (9) is arranged at the front end of the fixed base plate (1), two sides of the sea water pump motor mounting plate (9) are fixed by pressing plates (10), the sea water pump motor mounting plate (9) is fixed on the fixed base plate (1) by a full-thread hexagon bolt (19), a sea water pump motor (22) is arranged at the lower part of the sea water pump motor mounting plate (9), a horizontal motor mounting frame (18) is arranged at one side of the sea water pump motor (22), a pump shaft (23) is arranged at the upper part of the sea water pump motor (22), a rotary shaft sleeve (7) is sleeved on the pump shaft (23), the rotary shaft sleeve (7) is arranged in a gap at the front end of a lever (6), and is connected with the rotary shaft sleeve (7) in a penetrating way by a rear pin shaft (17), the upper part of a rotary shaft sleeve (7) is fixed through a gasket (8) and a hexagon nut (20), a lever support frame (3) is fixed on a fixed base plate (1) through an adjusting base plate (5), the upper part of the lever support frame is fixed with the side part of a lever (6) through a middle pin shaft (4), the front part of the lever (6) is connected with an oil cylinder (24) through a front pin shaft (11), the upper part of the oil cylinder (24) is fixed on a copper sleeve (13) through an upper pin shaft (14), an oil cylinder support (12) is connected with the upper part of a welding frame (2), an electromagnetic coil (26) of a high-frequency induction heating machine (25) is used for heating a pump shaft (23) on the pump shaft (23), and the pump shaft (23) of the sea water pump is lifted through the lever (6);
the pump shaft dismounting method comprises the following steps:
the first step is as follows: integrally mounting a sea water pump shaft (23) detached from a ship and a sea water pump motor (22) on a sea water pump motor mounting plate (9), and reliably fixing the sea water pump shaft and the sea water pump motor by full-thread hexagon bolts;
the second step is that: sleeving an electromagnetic coil (26) on a pump shaft (23), sleeving a main shaft end rotating shaft sleeve (7) on a lever (6) on the pump shaft (23), installing a gasket (8), and fixing the main shaft end rotating shaft sleeve (7) and the gasket (8) through a hexagon nut (20);
the third step: an electric hydraulic oil pump is used for pumping oil to the oil cylinder (24), so that the lever (6) applies a certain pulling force to the pump shaft (23) in advance; the pulling force is not too large, and the pressure gauge at the outlet of the electric hydraulic pump is used for needle movement;
the fourth step: starting a high-frequency induction heater (25) to supply power to an electromagnetic coil (26), pressing a heating switch on a handheld handle of the electromagnetic coil (26), and heating a pump shaft (23); meanwhile, the electric hydraulic pump is continuously used for pumping oil to the oil cylinder (24); along with the rise of the temperature of the pump shaft (23), the lever (6) drives the main shaft end rotating shaft sleeve (7) to slowly jack up the pump shaft (23), so that the heating and jacking disassembly are realized until the pump shaft (23) is completely disassembled;
the fifth step: and (3) turning off the high-frequency induction heater (25), detaching the electromagnetic coil (26), and detaching the pump shaft (23) from the main shaft end rotating shaft sleeve (7) after the pump shaft (23) is completely cooled, so that the detachment of the sea water pump shaft (23) and the sea water pump motor (22) is realized.
2. The marine motor pump shaft dismantling method according to claim 1, characterized in that:
and a copper sleeve is sleeved outside the rotary shaft sleeve (7).
3. The marine motor pump shaft dismantling method according to claim 1, characterized in that:
and an electromagnetic coil (26) is arranged in the high-frequency induction heater (25), and the pump shaft (23) of the sea water pump is heated by high-frequency induction.
4. The marine motor pump shaft dismantling method according to claim 1, characterized in that:
the rotating shaft sleeve (7) is a pump shaft bearing sleeve.
5. The marine motor pump shaft dismantling method according to claim 1, characterized in that:
the welding frame (2) is a frame structure formed by mutually welding metal steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308621.5A CN111015593B (en) | 2019-12-18 | 2019-12-18 | Marine motor pump shaft dismantling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308621.5A CN111015593B (en) | 2019-12-18 | 2019-12-18 | Marine motor pump shaft dismantling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111015593A CN111015593A (en) | 2020-04-17 |
| CN111015593B true CN111015593B (en) | 2021-09-10 |
Family
ID=70210324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911308621.5A Active CN111015593B (en) | 2019-12-18 | 2019-12-18 | Marine motor pump shaft dismantling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111015593B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120317775A1 (en) * | 2011-06-15 | 2012-12-20 | Rodney John Lamash | Tool remover |
| CN106026550B (en) * | 2016-06-26 | 2018-03-20 | 高玉琴 | The heating jacket tooling of motor rotor |
| CN208353643U (en) * | 2018-05-21 | 2019-01-08 | 邯郸市丛台区联东冶金机械配件厂 | A kind of connecting bushing induction heating apparatus |
| CN108942777A (en) * | 2018-08-21 | 2018-12-07 | 浙江海洋大学 | Injection pump lead sleeve special dismounting device and its assembly and disassembly methods peculiar to vessel |
| CN209532631U (en) * | 2019-02-14 | 2019-10-25 | 南京安维士传动技术股份有限公司 | A kind of universal planetary wheel of wind turbine gearbox bearing removal equipment |
| CN110576300A (en) * | 2019-10-11 | 2019-12-17 | 东莞市阿巴斯精密传动科技有限公司 | Preparation process of miniature duplicate gear and positioning clamp for pressing |
-
2019
- 2019-12-18 CN CN201911308621.5A patent/CN111015593B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111015593A (en) | 2020-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108857367B (en) | Marine shafting adjusting ring bolt dismounting tool and dismounting method | |
| CN111015593B (en) | Marine motor pump shaft dismantling method | |
| CN214641527U (en) | Roller coupling sleeve dismounting device | |
| CN212669731U (en) | Device for dismounting blast furnace blowpipe | |
| CN109539289B (en) | Method for repairing boiler grate | |
| CN201291439Y (en) | Special purpose tool for disassembling diesel engine crank pulley | |
| CN110614501B (en) | Disassembly and assembly method and tool for overhauling large-scale hydraulic dynamometer | |
| CN210477876U (en) | Automatic quick assembly disassembly mould mechanism of vulcanizer | |
| CN111635971A (en) | Device for dismounting blast furnace blowpipe | |
| CN111761295A (en) | Nondestructive separation and disassembly method for main shaft and bearing of wind generating set | |
| CN218534382U (en) | Automobile brake drum dismounting tool | |
| CN113352274A (en) | NJ bearing puller of movable blade adjustable axial flow fan bearing box | |
| CN202591913U (en) | Spring repairing tool | |
| US20040055138A1 (en) | Generator rotor jacking assembly and methods of use | |
| CN211805877U (en) | Centrifugal pump shaft coupling extracting tool | |
| CN210307620U (en) | Bearing disassembling tool | |
| CN217317851U (en) | Special device for disassembling speed reducer | |
| CN114654182A (en) | Method for replacing bearing tower of semi-direct-drive permanent magnet wind power generator | |
| CN108005732B (en) | Dismounting mechanism of turbine stationary blade assembly of gas turbine | |
| CN108708962B (en) | Disassembling and assembling mechanism for worm gear speed reducer of crystallizer | |
| CN210157051U (en) | Special tool for assembling and disassembling large-sized motor rotor | |
| CN215486368U (en) | Transmission chain disassembling device of wind generating set | |
| CN218254832U (en) | Auxiliary dismounting tool for centrifugal cargo oil pump bearing | |
| CN211709182U (en) | Swift splitting device of air compressor unit | |
| CN218657689U (en) | Disassembly and assembly tool for wheel bearing outer sleeve of sintering table |
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 |