CN109861434A - A kind of oil pressure balance electric motor motive sealing device - Google Patents
A kind of oil pressure balance electric motor motive sealing device Download PDFInfo
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- CN109861434A CN109861434A CN201811569347.2A CN201811569347A CN109861434A CN 109861434 A CN109861434 A CN 109861434A CN 201811569347 A CN201811569347 A CN 201811569347A CN 109861434 A CN109861434 A CN 109861434A
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- ring
- motor
- end cover
- pressure balance
- oil pressure
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Abstract
The invention discloses a kind of oil pressure balance electric motor motive sealing device, which includes end cover, interior seal receptacle, external seal seat, O-ring, lubricating grease and insulation hydraulic oil；End cover upper end and oil pressure balance motor are connected, and are axially and radially limited the interior seal receptacle being sleeved on motor shaft on the left of end cover lower end, are respectively mounted O-ring in interior seal receptacle and the radially facing surface of motor shaft and end cover；The external seal seat being sleeved on motor shaft is axially and radially limited on the right side of end cover lower end, external seal seat is equipped with outer shaft oil pocket, lubricating grease is full of in outer shaft oil pocket, the both ends of outer shaft oil pocket are respectively mounted seal with O ring, external seal seat is same as the radially facing surface of end cover to install seal with O ring, and external seal seat is removably fixedly connected with end cover.The present invention can simplify the process procedure of replacement sealing ring, reduce the maintenance cost of motor.
Description
Technical field
The present invention relates to the movable sealing structures of underwater oil pressure balance motor, and in particular to motor technical field of sealing technology.
Background technique
As the mankind constantly explore marine resources, underwater robot is using more and more extensive, underwater robot propulsion system
Electric machine rotational axis dynamic sealing problem is badly in need of solving in system.The problem of dynamic sealing, is relatively difficult to resolve certainly for opposite static seal, and axis is revolving
Since there are gaps will generate leakage between axis and casing when turning, and the revolving speed of axis the high more is easy to produce leakage.
The sealing of submersible machine rotary shaft is divided into pressure-bearing type rotary dynamic seal and pressure compensation type rotary dynamic seal.It is closed
Motor uses a kind of mounted in motor in cover, the encryption seal at the take-off (propeller) shaft of motor.The advantage of this structure is
The motor of standard specification can be used, shortcoming is that the closed cover of motor and sealing ring must stand all outsides
Pressure, otherwise any poorly sealed caused leakage part can damage motor.Pressure balance type motor is also with outside one
Cover is filled with nonconducting liquid in covering to be sealed, and external pressure is passed in cover by pressure compensator
Liquid, the internal and external pressure difference that outer cover and sealing ring are born is in a basic balance, reduces sealing ring bring pressure-bearing problem, simultaneously
Due to being full of nonconducting liquid inside motor, when replace sealing ring inside oil liquid can flow out, so replacement seals every time
Circle requires just be sealed circle replacement after first releasing oil liquid, which not only adds maintenance cost and wastes time.
Summary of the invention
In view of this, replacement sealing ring can be simplified the present invention provides a kind of oil pressure balance electric motor motive sealing device
Process procedure reduces the maintenance cost of motor.
A kind of oil pressure balance electric motor motive sealing device, the dynamic sealing device include end cover, interior seal receptacle, external seal
Seat, O-ring, lubricating grease and insulation hydraulic oil；
The end cover upper end and oil pressure balance motor are connected, and will be sleeved on motor shaft on the left of end cover lower end
Interior seal receptacle is axially and radially limited, and is respectively mounted O shape in interior seal receptacle and the radially facing surface of motor shaft and end cover
Circle；The external seal seat being sleeved on motor shaft is axially and radially limited on the right side of end cover lower end, the external seal seat
Be equipped with outer shaft oil pocket, be full of lubricating grease in outer shaft oil pocket, the both ends of outer shaft oil pocket are respectively mounted seal with O ring, external seal seat with
The radially facing surface of end cover equally installs seal with O ring, and external seal seat is removably fixedly connected with end cover.
Further, the O-ring need to be smeared 7013 lubricating grease and be lubricated using radial 45 ° of points of mould O-rings, O-ring.
Further, the dynamic sealing device on motor after the assembly is completed, need to using test equipment in motor cavity
Insulation hydraulic oil is vacuumized and injected, guarantees oil pressure balance motor rotatory sealing performance by this process.
The utility model has the advantages that
1, sealing device is split as interior seal receptacle and external seal seat by the present invention, prevents insulation hydraulic oil using interior seal receptacle
It is oozed out from rotary shaft, prevents water from entering motor from rotary shaft using external seal seat, due to external seal seat pressure-bearing so the service life is opposite
It is short in the sealing ring service life of interior seal receptacle, the O-ring in external seal seat, interior seal receptacle are only needed to change when replacing sealing ring
In O-ring optionally replaced.Therefore the process procedure that can simplify replacement sealing ring, reduces the maintenance cost of motor.
2, the present invention is suitable for the sealing at oil pressure balance Motor Shaft, can guarantee watertight of the motor when big depth rotates
Property require, have both the advantages that structure is simple, inexpensive, small in size, easy to loading and unloading.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Wherein, 1- motor shaft, 2-O shape circle, 3-O shape circle, 4- end cover, seal receptacle in 5-, 6- conical surface O-ring, 7-O shape
Circle, 8-O shape circle, 9- external seal seat, 10- lubricating grease, 11- insulation hydraulic oil.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 1, the present invention provides a kind of oil pressure balance electric motor motive sealing device, device includes oil pressure balance electricity
Machine goes out shaft end 1,0 shape circle 2,0 shape circle 3, end cover 4, interior seal receptacle 5,0 shape circle 6 of the conical surface, 0 shape circle 7,0 shape circle 8, external seal seat
9, lubricating grease 10 and insulation hydraulic oil 11.
End cover 4 is connected on oil pressure balance motor 1, and end cover 4 sets an axial O-ring 3 and one by interior
Radial 45 ° of points of mould outer shaft O-rings 2, are located at the O-ring and need to smear 7013 lubricating grease and be lubricated, and end cover is selected stainless
Steel material, O-ring select nitrile rubber；
Interior seal receptacle 5 is connected on end cover 4, and there are two seal groove, the interior installations of the seal groove of inner hole on interior seal receptacle 5
Interior O-ring 8, the seal groove of outer circumference surface is interior to install conical surface O-ring O-ring 6, and O-ring need to smear 7013 lubricating grease and be lubricated,
Wherein O-ring 8 and oil pressure balance motor output shaft end 1, which come into full contact with interior seal receptacle, prevents insulation hydraulic oil 11 from oozing out from rotary shaft,
Interior seal receptacle selects tin bronze material；
External seal seat 9 is connected on end cover 4, interior on external seal seat 9 to set three radial directions, 45 ° of points of mould O-rings 6,8, is led to
The two 45 ° of points of mould O-rings 8 set in crossing are sealed oil pressure balance motor outer shaft 1, and external seal seat 9 is equipped with outer shaft oil pocket,
7008 lubricating grease 10 are wherein filled up, lubricating grease 10 is lubricated O-ring 8 and 1 contact surface of oil pressure balance motor output shaft end；It is outer close
Envelope seat 9 prevents water from entering motor from rotary shaft, and external seal seat 9 selects tin bronze material.
Working principle: it is needed before assembling dynamic sealing device by 1 wiped clean of oil pressure balance motor output shaft end and at shaft
7013 lubricating grease are uniformly smeared, except deburring and need to guarantee its finish at all installation O-rings of dynamic sealing device to guarantee O shape
Matching requirements are enclosed, all O-rings need to uniformly smear 7013 lubricating grease, and 9 oil pocket domestic demand wiped clean of external seal seat simultaneously fills up 7008
Come lubrication needed for O-ring when guaranteeing axis rotation, dynamic sealing device after the assembly is completed, need to be set lubricating grease 10 on motor using test
For to insulation hydraulic oil 11 is vacuumized and injected in motor cavity, guarantee that the rotation of oil pressure balance motor is close by this process
Sealing property.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. a kind of oil pressure balance electric motor motive sealing device, which is characterized in that the dynamic sealing device includes end cover, interior sealing
Seat, external seal seat, O-ring, lubricating grease and insulation hydraulic oil；
The end cover upper end and oil pressure balance motor are connected, will be sleeved on motor shaft on the left of end cover lower end in it is close
Envelope seat is axially and radially limited, and is respectively mounted O-ring in interior seal receptacle and the radially facing surface of motor shaft and end cover；It is close
Sealing end is axially and radially limited the external seal seat being sleeved on motor shaft on the right side of lid lower end, and the external seal seat is equipped with
Outer shaft oil pocket, outer shaft oil pocket is interior to be full of lubricating grease, and the both ends of outer shaft oil pocket are respectively mounted seal with O ring, external seal seat and sealed end
The radially facing surface of lid equally installs seal with O ring, and external seal seat is removably fixedly connected with end cover.
2. oil pressure balance electric motor motive sealing device as described in claim 1, which is characterized in that the O-ring is using 45 ° radial
Divide mould O-ring, O-ring need to smear 7013 lubricating grease and be lubricated.
3. oil pressure balance electric motor motive sealing device as claimed in claim 1 or 2, which is characterized in that the dynamic sealing device exists
On motor after the assembly is completed, this need to be passed through using test equipment to insulation hydraulic oil is vacuumized and injected in motor cavity
Process guarantees oil pressure balance motor rotatory sealing performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569347.2A CN109861434A (en) | 2018-12-21 | 2018-12-21 | A kind of oil pressure balance electric motor motive sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811569347.2A CN109861434A (en) | 2018-12-21 | 2018-12-21 | A kind of oil pressure balance electric motor motive sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109861434A true CN109861434A (en) | 2019-06-07 |
Family
ID=66891766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811569347.2A Pending CN109861434A (en) | 2018-12-21 | 2018-12-21 | A kind of oil pressure balance electric motor motive sealing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109861434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793588A (en) * | 2019-11-19 | 2020-02-14 | 重庆前卫科技集团有限公司 | Direct drive set and method of assembling same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611238A (en) * | 2012-03-26 | 2012-07-25 | 吴江天龙电子机械设备有限公司 | Dynamic sealing structure for rotating shaft of submersible motor |
| CN102619981A (en) * | 2012-03-24 | 2012-08-01 | 中国船舶重工集团公司第七一〇研究所 | Dynamic sealing device for long-endurance watertight counter rotating motor |
| JP2014135800A (en) * | 2013-01-08 | 2014-07-24 | Ebara Corp | Motor, and shaft seal mechanism |
| CN107171478A (en) * | 2017-07-04 | 2017-09-15 | 哈尔滨理工大学 | A kind of mechanical seal structure of submersible motor |
-
2018
- 2018-12-21 CN CN201811569347.2A patent/CN109861434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619981A (en) * | 2012-03-24 | 2012-08-01 | 中国船舶重工集团公司第七一〇研究所 | Dynamic sealing device for long-endurance watertight counter rotating motor |
| CN102611238A (en) * | 2012-03-26 | 2012-07-25 | 吴江天龙电子机械设备有限公司 | Dynamic sealing structure for rotating shaft of submersible motor |
| JP2014135800A (en) * | 2013-01-08 | 2014-07-24 | Ebara Corp | Motor, and shaft seal mechanism |
| CN107171478A (en) * | 2017-07-04 | 2017-09-15 | 哈尔滨理工大学 | A kind of mechanical seal structure of submersible motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793588A (en) * | 2019-11-19 | 2020-02-14 | 重庆前卫科技集团有限公司 | Direct drive set and method of assembling same |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190607 |