CN219304594U - Pressure-bearing compensation mechanism integrated with deep-sea submersible permanent magnet synchronous motor - Google Patents
Pressure-bearing compensation mechanism integrated with deep-sea submersible permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN219304594U CN219304594U CN202223408697.5U CN202223408697U CN219304594U CN 219304594 U CN219304594 U CN 219304594U CN 202223408697 U CN202223408697 U CN 202223408697U CN 219304594 U CN219304594 U CN 219304594U
- Authority
- CN
- China
- Prior art keywords
- piston
- piston cylinder
- motor
- pressure
- bearing
- 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
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a pressure-bearing compensation mechanism integrated with a deep sea submersible permanent magnet synchronous motor, which solves the problems of poor reliability of a joint and complex structure of a pressure-bearing oil conduction system of the existing pressure-bearing structure; the deep sea diving permanent magnet synchronous motor and the pressure-bearing compensation device are integrally designed, the outer side of the end cover of the non-driving end of the motor is connected with a hydraulic oil cylinder, so that the inner side of a piston in the hydraulic oil cylinder is an oil chamber, bearing oil is filled in the oil chamber, the oil chamber is communicated with the inner cavity of the motor shell, the outer side of the piston in the hydraulic oil cylinder is a water chamber, the water chamber is communicated with seawater, the water pressure of the water chamber is increased along with the increase of the diving depth of the motor, the increased water pressure pushes the piston to move towards the oil chamber, the volume of the bearing oil is reduced, and the pressure of the bearing oil in the inner cavity of the motor shell is improved so as to balance the increased water pressure outside the motor shell.
Description
Technical Field
The utility model relates to a permanent magnet synchronous motor, in particular to a pressure-bearing compensation mechanism of a deep-sea submersible permanent magnet synchronous motor and a construction method thereof.
Background
The deep sea submersible motor is a motor which combines a permanent magnet synchronous motor body, a pressure compensation device, a dynamic sealing system, a static sealing system and the like together, oil is filled in the motor body to realize self-bearing of the motor body, and the motor body directly runs in the deep sea to drive a propeller so as to drive an aircraft to sail; the permanent magnet synchronous motor body comprises a stator, a rotor, a driving end bearing, a driving end cover, a non-driving end cover, a driving end bearing, a rotor position detection device and the like, wherein the rotor consists of a rotating shaft, magnetic steel, a fastening sleeve, a magnetic steel yoke and the like, the rotor adopts a surface-mounted tile-shaped magnetic steel structure, the magnetic steel and the magnetic steel are divided by a positioning groove and are fastened by a stainless steel fastening sleeve, and then an oil-resistant sizing material is encapsulated, so that the problem that cavity bubbles affect underwater pressure bearing of a motor is solved; when the deep sea submersible motor operates under water, larger water pressure needs to be born, if the motor shell is simply relied on for bearing pressure, the thickness of the shell needs to be increased when the shell is designed, so that the requirement of bearing pressure during deep sea diving is met; in order to design the motor to be smaller in size and lighter in weight, the motor structure is required to be structurally and structurally improved, the prior art is realized by adding a pressure compensation device outside the motor, the compensation device is generally independently designed into a bag body, a compensation pressure oil inlet is formed in a motor end cover, when the bag body of the compensation device is used, the pressure of water borne by the bag body is increased along with the increase of the submergence depth of the motor, the increased pressure of water passes through the wall of the bag body, pressure bearing oil in the bag is injected into the motor shell, the pressure bearing capacity of the motor shell is enhanced, but the pressure bearing structure connected by the two independent bodies has the problems of poor reliability of a connecting part and complex structure of a pressure bearing oil conduction system.
Disclosure of Invention
The utility model provides a pressure-bearing compensation mechanism integrated with a deep-sea submersible permanent magnet synchronous motor, which solves the technical problems of poor reliability of a joint and complex structure of a pressure-bearing oil conduction system of the existing pressure-bearing structure.
The utility model solves the technical problems by the following technical proposal:
the general conception of the utility model is that: the deep sea diving permanent magnet synchronous motor and the pressure-bearing compensation device are integrally designed, the outer side of the end cover of the non-driving end of the motor is connected with a hydraulic oil cylinder, so that the inner side of a piston in the hydraulic oil cylinder is an oil chamber, bearing oil is filled in the oil chamber, the oil chamber is communicated with the inner cavity of the motor shell, the outer side of the piston in the hydraulic oil cylinder is a water chamber, the water chamber is communicated with seawater, the water pressure of the water chamber is increased along with the increase of the diving depth of the motor, the increased water pressure pushes the piston to move towards the oil chamber, the volume of the bearing oil is reduced, and the pressure of the bearing oil in the inner cavity of the motor shell is improved so as to balance the increased water pressure outside the motor shell.
The pressure-bearing compensation mechanism integrated with the deep sea submersible permanent magnet synchronous motor comprises a motor shell and a motor rotating shaft, wherein a piston cylinder body is connected to a non-driving end of the motor shell, a cylinder bottom of the piston cylinder body is connected to the non-driving end of the motor shell through a connecting bolt, a cylinder bottom center through hole is formed in the center of the cylinder bottom of the piston cylinder body, a non-driving end bearing of the motor is arranged in the cylinder bottom center through hole, and a non-driving end shaft end of the motor rotating shaft is connected to the non-driving end bearing in a penetrating manner; a piston is arranged in the piston cylinder, a sealing ring is arranged between the piston and the inner side wall of the piston cylinder, an oil passing hole is arranged on the bottom end surface of the piston cylinder, an oil cavity of the piston cylinder below the piston is communicated with an inner cavity of the motor shell together through the oil passing hole, and pressure-bearing oil is filled in the cavity below the piston and the inner cavity of the motor shell; the piston cylinder is characterized in that a piston cylinder end cover is arranged on the cylinder top of the piston cylinder, the piston cylinder end cover is connected to the cylinder top of the piston cylinder through an end cover fixing bolt, a piston cylinder water cavity is arranged between the piston and the piston cylinder end cover, a water inlet hole is formed in the piston cylinder end cover, and the piston cylinder water cavity is communicated with seawater outside the motor casing through the water inlet hole.
The center of the piston cylinder end cover is provided with an end cover center through hole, the center of the outer side elevation of the piston is provided with a screw bolt connecting hole, and the inner side end of the piston assembled screw bolt is in threaded connection with the screw bolt connecting hole after penetrating through the end cover center through hole.
The construction method of the pressure-bearing compensation mechanism of the deep sea diving permanent magnet synchronous motor comprises a motor shell and a motor rotating shaft, and is characterized in that a piston cylinder body is used for replacing an end cover of a non-driving end of the motor; the method comprises the steps that a shaft end penetrating hole of a non-driving end of a motor is formed in the bottom of a piston cylinder, a bearing of the non-driving end of the motor is arranged in the shaft end penetrating hole of the non-driving end of the motor, and the piston cylinder is made to be an end cover of the non-driving end of the motor; the inner cavity of the piston cylinder is divided into a piston cylinder oil cavity and a piston cylinder water cavity by a piston, the piston cylinder oil cavity is communicated with the inner cavity of the motor shell, the piston cylinder water cavity is communicated with the outside sea water of the motor, and the piston cylinder oil cavity and the inner cavity of the motor are filled with bearing oil; along with the submergence of the motor in the sea water, the piston is pushed by the water pressure, the volume of the oil cavity of the piston cylinder body is reduced, and therefore the oil pressure of the pressure-bearing oil in the inner cavity of the motor is increased, and the purpose of balancing the water pressure increase is achieved.
The construction method of the pressure-bearing compensation mechanism of the deep sea diving permanent magnet synchronous motor is characterized by comprising the following steps:
the method comprises the following steps that firstly, a cylinder bottom center through hole is formed in the center of a cylinder bottom of a piston cylinder body, a non-driving end bearing of a motor is arranged in the cylinder bottom center through hole, and an oil passing hole is formed in the cylinder bottom outside the cylinder bottom center through hole;
assembling the piston cylinder body on the non-driving end of the motor shell, fixedly connecting the cylinder bottom of the piston cylinder body with the non-driving end of the motor shell through a connecting bolt, and enabling the shaft end of the non-driving end of the motor rotating shaft to be connected in a non-driving end bearing in a penetrating manner;
thirdly, arranging a piston in the inner cavity of the piston cylinder, and arranging a sealing ring between the piston and the inner side wall of the piston cylinder; a screw rod screw hole is arranged in the center of the outer vertical surface of the piston;
fourthly, connecting the end cover of the piston cylinder body on the cylinder top of the piston cylinder body through an end cover fixing bolt, so that the inner cavity of the piston cylinder body is divided into a piston cylinder body oil cavity and a piston cylinder body water cavity; a water inlet hole is arranged on the end cover of the piston cylinder;
and fifthly, filling bearing oil into the oil cavity of the piston cylinder body and the inner cavity of the motor shell.
The pressure compensation device is arranged at the non-driving end of the motor, the non-driving end cover of the motor body is integrated, the non-driving end bearing is arranged in the non-driving end integrated end cover, the pressure compensation device and the split type pressure compensation device are arranged after the transition section is added outside the original motor, the axial size of the motor is reduced, and the reliability of the motor is enhanced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a diagram of the mating relationship between the bottom of the piston cylinder 21 and the non-drive end of the motor housing 6 of the present utility model;
fig. 3 is a diagram showing the relationship between the piston cylinder 21 and the piston 27 according to the present utility model.
Detailed Description
The utility model is described in detail below with reference to the attached drawing figures:
the pressure-bearing compensation mechanism integrated with the deep sea submersible permanent magnet synchronous motor comprises a motor shell 6 and a motor rotating shaft 4, wherein a piston cylinder 21 is connected to a non-driving end of the motor shell 6, a cylinder bottom of the piston cylinder 21 is connected to the non-driving end of the motor shell 6 through a connecting bolt 25, a cylinder bottom center through hole 22 is formed in the center of the cylinder bottom of the piston cylinder 21, a non-driving end bearing 23 of the motor is arranged in the cylinder bottom center through hole 22, and a non-driving end shaft end of the motor rotating shaft 4 is connected to the non-driving end bearing 23 in a penetrating manner; a piston 27 is arranged in the piston cylinder 21, a sealing ring 28 is arranged between the piston 27 and the inner side wall of the piston cylinder 21, an oil passing hole 24 is arranged on the bottom end surface of the piston cylinder 21, the oil passing hole 24 communicates a piston cylinder oil cavity 26 below the piston 27 with the inner cavity of the motor housing 6, and pressure-bearing oil is filled in the cavity below the piston 27 and the inner cavity of the motor housing 6; a piston cylinder end cover 31 is arranged on the cylinder top of the piston cylinder 21, the piston cylinder end cover 31 is connected to the cylinder top of the piston cylinder 21 through an end cover fixing bolt, a piston cylinder water cavity 34 is arranged between the piston 27 and the piston cylinder end cover 31, a water inlet hole 33 is arranged on the piston cylinder end cover 31, and the water inlet hole 33 communicates the piston cylinder water cavity 34 with seawater outside the motor shell 6; according to the utility model, the pressure compensation device and the motor housing 6 are integrally designed, and the piston 27 in the piston cylinder 21 is pushed to move by the seawater pressure, so that the pressure-bearing change inside and outside the motor housing 6 is balanced, and the volume and thickness of the motor housing 6 are reduced.
An end cover center through hole 32 is arranged at the center of the piston cylinder end cover 31, a screw bolt connecting hole 29 is arranged at the center of the outer side elevation of the piston 27, and the inner side end of the piston assembly screw 30 passes through the end cover center through hole 32 and is then connected in the screw bolt connecting hole 29 in a bolt manner; the piston assembly screw 30 is mainly used for adjusting the position of the piston 27 at the time of assembly.
A construction method of a pressure-bearing compensation mechanism of a deep sea diving permanent magnet synchronous motor comprises a motor shell 6 and a motor rotating shaft 4, wherein a piston cylinder 21 is used for replacing an end cover of a non-driving end of the motor; a motor non-driving end shaft end penetrating hole is arranged at the bottom of the piston cylinder 21, and a motor non-driving end bearing 23 is arranged in the motor non-driving end shaft end penetrating hole, so that the piston cylinder 21 becomes an end cover of the motor non-driving end; the inner cavity of the piston cylinder 21 is divided into a piston cylinder oil cavity 26 and a piston cylinder water cavity 34 by a piston 27, the piston cylinder oil cavity 26 is communicated with the inner cavity of the motor shell, the piston cylinder water cavity 34 is communicated with the outside sea water of the motor, and the piston cylinder oil cavity 26 and the inner cavity of the motor are filled with bearing oil; along with the submergence of the motor in the sea water, the piston 27 is pushed by the water pressure, the volume of the oil cavity 26 of the piston cylinder body is reduced, and therefore the oil pressure of the pressure-bearing oil in the inner cavity of the motor is increased, and the purpose of balancing the water pressure increase is achieved.
The construction method of the pressure-bearing compensation mechanism of the deep sea diving permanent magnet synchronous motor is characterized by comprising the following steps:
a first step of arranging a cylinder bottom center through hole 22 at the center of the cylinder bottom of the piston cylinder body 21, arranging a non-driving end bearing 23 of a motor in the cylinder bottom center through hole 22, and arranging an oil passing hole 24 on the cylinder bottom outside the cylinder bottom center through hole 22;
secondly, assembling the piston cylinder 21 on the non-driving end of the motor shell 6, fixedly connecting the bottom of the piston cylinder 21 with the non-driving end of the motor shell 6 through a connecting bolt 25, and enabling the shaft end of the non-driving end of the motor rotating shaft 4 to be connected in a non-driving end bearing 23 in a penetrating manner;
a third step, setting a piston 27 in the inner cavity of the piston cylinder 21, and setting a sealing ring 28 between the piston 27 and the inner side wall of the piston cylinder 21; a screw bolt connecting hole 29 is arranged at the center of the outer vertical surface of the piston 27;
fourthly, connecting a piston cylinder end cover 31 on the top of the piston cylinder 21 through an end cover fixing bolt, so as to divide the inner cavity of the piston cylinder 21 into two parts, namely a piston cylinder oil cavity 26 and a piston cylinder water cavity 34; a water inlet 33 is arranged on the piston cylinder end cover 31;
and fifthly, filling bearing oil into the piston cylinder oil cavity 26 and the inner cavity of the motor shell 6.
Claims (2)
1. The pressure-bearing compensation mechanism integrated with the deep sea submersible permanent magnet synchronous motor comprises a motor shell (6) and a motor rotating shaft (4) and is characterized in that a piston cylinder body (21) is connected to a non-driving end of the motor shell (6), a cylinder bottom of the piston cylinder body (21) is connected to the non-driving end of the motor shell (6) through a connecting bolt (25), a cylinder bottom center through hole (22) is formed in the center of the cylinder bottom of the piston cylinder body (21), a non-driving end bearing (23) of the motor is arranged in the cylinder bottom center through hole (22), and a non-driving end shaft end of the motor rotating shaft (4) is connected to the non-driving end bearing (23) in a penetrating manner; a piston (27) is arranged in the piston cylinder (21), a sealing ring (28) is arranged between the piston (27) and the inner side wall of the piston cylinder (21), an oil passing hole (24) is arranged on the bottom end surface of the piston cylinder (21), an oil passing hole (24) is used for communicating a piston cylinder oil cavity (26) below the piston (27) with an inner cavity of the motor shell (6), and pressure-bearing oil is filled in the cavity below the piston (27) and the inner cavity of the motor shell (6); a piston cylinder end cover (31) is arranged on the cylinder top of the piston cylinder (21), the piston cylinder end cover (31) is connected to the cylinder top of the piston cylinder (21) through an end cover fixing bolt, a piston cylinder water cavity (34) is arranged between the piston (27) and the piston cylinder end cover (31), a water inlet hole (33) is formed in the piston cylinder end cover (31), and the water inlet hole (33) is used for communicating the piston cylinder water cavity (34) with seawater outside the motor shell (6).
2. The pressure-bearing compensation mechanism integrated with a deep sea submersible permanent magnet synchronous motor according to claim 1, wherein an end cover center through hole (32) is arranged at the center of a piston cylinder end cover (31), a screw bolt connecting hole (29) is arranged at the center of an outer side elevation of a piston (27), and the inner side end of a piston assembly screw (30) is screwed in the screw bolt connecting hole (29) after penetrating through the end cover center through hole (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223408697.5U CN219304594U (en) | 2022-12-20 | 2022-12-20 | Pressure-bearing compensation mechanism integrated with deep-sea submersible permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223408697.5U CN219304594U (en) | 2022-12-20 | 2022-12-20 | Pressure-bearing compensation mechanism integrated with deep-sea submersible permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219304594U true CN219304594U (en) | 2023-07-04 |
Family
ID=86952408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223408697.5U Active CN219304594U (en) | 2022-12-20 | 2022-12-20 | Pressure-bearing compensation mechanism integrated with deep-sea submersible permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219304594U (en) |
-
2022
- 2022-12-20 CN CN202223408697.5U patent/CN219304594U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109281926B (en) | Vibration reduction thrust bearing with hydrostatic thrust self-balancing function | |
| CN108730349A (en) | A kind of integrated form oil-lubricated bearing having hub wheel edge propeller for deep-sea | |
| CN109018269B (en) | Propelling device of large-depth all-electric-drive underwater robot | |
| CN102141022A (en) | Double canted disk valve distribution axial plunger type water hydraulic pressure shielding pump | |
| CN219304594U (en) | Pressure-bearing compensation mechanism integrated with deep-sea submersible permanent magnet synchronous motor | |
| CN109080809A (en) | Magnetic coupling deep-water propeller and its assemble method | |
| CN113815832A (en) | Rim-driven semi-submerged propeller | |
| CN110159664B (en) | Shafting thrust compensation device | |
| CN113107971A (en) | Thrust bearing with vibration-damping piston | |
| GB2577393A (en) | Accumulator system | |
| CN113581438A (en) | Integrated deep sea integrated electric propeller | |
| CN116191744A (en) | Construction method of pressure-bearing compensation mechanism of deep sea diving permanent magnet synchronous motor | |
| CN107017515B (en) | Sealing structure and rotary connector adopting same | |
| CN110329482B (en) | External submersible vehicle shafting device | |
| CN201606207U (en) | Double-swashplate valve distributing axial plunger-type water hydraulic canned motor pump | |
| CN202468352U (en) | Oil-filled submersible electric pump | |
| CN208021695U (en) | A kind of drive system of buoyancy adjustment sea water plunger pump | |
| CN201918822U (en) | Corrugated pipe compensation sealing type deep-water motor | |
| CN113691080B (en) | Canned type formula of soaking permanent magnetism frequency conversion deep-well pump motor structure | |
| CN216994812U (en) | Pressure compensation device integrated on propeller | |
| CN115765277A (en) | Deep sea diving permanent magnet synchronous motor integrated with pressure-bearing compensation mechanism | |
| CN106208488A (en) | A kind of submarine navigation device propelling brushless direct current motor | |
| CN218976466U (en) | Shaft end sealing structure of deep sea diving permanent magnet synchronous motor | |
| CN208484816U (en) | Underwater propeller and underwater robot | |
| CN202391781U (en) | Connecting base for small diving sewage pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |