CN109494920A - Aviation pump motor movable sealing structure and aviation pump motor - Google Patents
Aviation pump motor movable sealing structure and aviation pump motor Download PDFInfo
- Publication number
- CN109494920A CN109494920A CN201811224414.7A CN201811224414A CN109494920A CN 109494920 A CN109494920 A CN 109494920A CN 201811224414 A CN201811224414 A CN 201811224414A CN 109494920 A CN109494920 A CN 109494920A
- Authority
- CN
- China
- Prior art keywords
- pump motor
- friction plate
- aviation pump
- bushing
- sealing structure
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 88
- 230000001681 protective effect Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 8
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 239000010985 leather Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 206010017389 Frotteurism Diseases 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
Abstract
This application provides a kind of aviation pump motor movable sealing structures, belong to motor construction field, comprising: friction plate, the friction plate are used to relatively rotate with bearing with form seal face；Bushing, the bushing are relatively fixed to motor shaft, are used to provide the described the power of friction plate rotation；Sealing element, the sealing element are connected to the bushing and the friction plate, for transmitting power and the sealing of the friction plate rotation；Spring, the spring are set between the friction plate and the bushing, the contact force being used to provide the described between friction plate and the bearing.The aviation pump motor movable sealing structure and aviation pump motor sealing structure stabilization, long service life of the application, sealing effect is good, and will not damage motor shaft.
Description
Technical field
The application belongs to design of electrical motor field, in particular to a kind of aviation pump motor movable sealing structure and aviation pump motor.
Background technique
The mode that cup packing is usually used in existing aviation oil pump comes oil liquid and motor internal insulation, to reach
The purpose of motor inner sealing.The material of leather cup is generally rubber material, and installation is by the inner hole in outer circle and oil pump chassis
Interference is mounted on oil pump chassis, and leather cup inner circle packet is on electric machine rotational axis, when rotor rotation, the motor diameter of axle and leather cup
Inner ring realizes dynamic sealing by sliding friction.
However since leather cup is rubber material, long-time wears very big, the leakproofness of motor after rubbing with the motor diameter of axle
It reduces；To reach sealing effect, then need the pretightning force between leather cup and the motor diameter of axle larger, but motor is after a period of work
Deep trouth can be ground on the motor diameter of axle, influence leakproofness；Force of sliding friction when motor high speed rotation, between leather cup and the diameter of axle
Larger, the loss of electric machine is larger, for low-power machine, it is possible to cause motor rotation blockage or the loss of electric machine excessive.
Summary of the invention
There is provided a kind of aviation pump motor movable sealing structure and aviation pump motors for the purpose of the application, to solve above-mentioned
One problem.
The technical solution of the application is: a kind of aviation pump motor movable sealing structure, including
Friction plate, the friction plate are used to relatively rotate with bearing with form seal face；
Bushing, the bushing are relatively fixed to motor shaft, are used to provide the described the power of friction plate rotation；
Sealing element, the sealing element are connected to the bushing and the friction plate, for transmitting the friction plate rotation
Power and sealing；
Spring, the spring are set between the friction plate and the bushing, be used to provide the described friction plate with it is described
Contact force between bearing.
It further include protective case in some embodiments of the application, the protective case and the bushing are relatively fixed, for protecting
Protect at least one of the bushing, sealing element and spring.
In some embodiments of the application, the protective case is relatively fixed to realize with the bushing transition fit.
In some embodiments of the application, the bushing has protrusion radially, and the spring rubs far from described
One end of pad is set between the protrusion and the protective case, for limiting the movement of the spring in the axial direction.
In some embodiments of the application, the friction plate is equipped with groove far from the side of the bearing, and the groove is used
It is coupled in the sealing element.
It further include clamping sleeve in some embodiments of the application, the clamping sleeve is set on the outside of the sealing element, is used for
The sealing element is compressed in the groove of the friction plate.
In some embodiments of the application, the friction plate is metal material.
In some embodiments of the application, the size of the contact force according to the steel wire diameter of the spring, spring the number of turns,
At least one parameter in spring diameter and wire heat treatment process is controlled.
In second aspect, this application provides a kind of aviation pumps with aviation pump motor movable sealing structure as described above
Motor, the aviation pump motor include motor shaft, shell and the bearing being arranged between motor shaft and shell, the aviation pump electricity
Motor-driven sealing structure is placed in the inside of the aviation pump motor, for sealing the oil liquid between the motor shaft and bearing.
In some embodiments of the application, the bearing is graphite bearing.
In some embodiments of the application, the power of the aviation pump motor is not more than 1KW.
The aviation pump motor movable sealing structure and aviation pump motor sealing structure stabilization, long service life of the application, sealing
Effect is good, and will not damage motor shaft.
Detailed description of the invention
In order to illustrate more clearly of technical solution provided by the present application, attached drawing will be briefly described below.It is aobvious and easy
Insight, drawings discussed below are only some embodiments of the present application.
Fig. 1 is the aviation pump motor schematic diagram with aviation pump motor movable sealing structure of the application.
Appended drawing reference:
1- friction plate, 2- clamping sleeve, 3- spring, 4- bushing, 41- protrusion, 5- protective case, 6- sealing element, 7- bearing, 8- shell
Body, 9- motor shaft, 10- aviation pump motor movable sealing structure, 20- aviation pump motor.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.
In the description of the present application, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is that orientation based on the figure or position are closed
System is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application protection scope.
In aviation pump motor sealing structure in order to overcome the prior art, sealing caused by cup packing material wear ability difference
Property poor, big to the damage of the motor diameter of axle and cooperation it is too tight caused by motor added losses are big, motor seal problem repair rate is high
The problems such as, it is mounted on inside motor present applicant proposes a kind of and is fixed on the novel movable sealing structure on electric machine rotational axis.
As shown in Figure 1, the aviation pump motor movable sealing structure 10 (part shown in dotted line in figure) of the application mainly includes rubbing
Pad 1, sealing element 6, bushing 4 and spring 3.Wherein, friction plate 1 is contacted with bearing 7, and friction plate 1 is used to turn with bearing 7 opposite
To shape a sealing surface 12 in the case where dynamic, sealing surface 12 can be sealed oil liquid；Bushing 4 is relatively fixed to motor shaft 9
On, for being rotated together with motor shaft 9 to provide the power of the rotation of friction plate 9；Sealing element 6 be connected to bushing 4 and friction plate 1 it
Between, required power is rotated for transmitting friction plate 1, and can be for along the gap L inflow between motor shaft 9 and bearing 7
Oil liquid inside motor is sealed；Spring 3 is set between friction plate 1 and bushing 4, can control friction plate 1 and bearing 7 it
Between contact force size.
In one embodiment of the application, aviation pump motor movable sealing structure 10 further includes protective case 5, protective case 5 and bushing 4
It is relatively fixed, for protecting at least one of bushing 4, sealing element 6 and spring 3, and the friction plate 1 of protection part.
In the present embodiment, protective case 5 can be a variety of with the relatively-stationary mode of bushing 4, such as be bonded, welding or one
Body machine-shaping, but in the present embodiment, protective case 5 and bushing 4 use transition fit, and in the cooperation of protective case 5 and bushing 4
It is relatively fixed to realize that face applies bonded adhesives, reduces the difficulty of processing of part and less assembly work amount.
In one embodiment of the application, bushing 4 has protrusion 41 radially, the one end of spring 3 far from friction plate 1
(right end as shown in the figure) setting is between protrusion 41 and protective case 5, for the movement of limited spring 3 in the axial direction, it is ensured that
Left and right play will not occur for spring 3.
In one embodiment of the application, friction plate 1 is equipped with groove far from the side of bearing 7, and groove with sealing element 6 for matching
Close installation.
In this embodiment, aviation pump motor movable sealing structure further includes clamping sleeve 2, and clamping sleeve 2 is set to outside sealing element 6
Side, for sealing element 6 being compacted in the groove of friction plate 1 in the case where friction plate 1 is cooperated in sealing element 6 with groove.
It should be noted that sealing element 6 is made in the present embodiment of rubber material.Sealing element 6 passes through upper with friction plate 1
The mode of stating is fixedly connected, and sealing element 6 with bushing 4 is integrally fixed by sulfurization, vulcanization before bushing 4 with
Therefore the faying face of rubber, which carries out frosted processing, may make up sealing structure by friction plate 1, sealing element 6, bushing 4.
In one embodiment of the application, friction plate 1 is metal material.
In one embodiment of the application, steel wire diameter, the spring the number of turns, spring diameter of the size of contact force according to spring 3
And at least one parameter in wire heat treatment process is controlled.
In addition, present invention also provides a kind of aviation pump motor 20 with above-mentioned aviation pump motor movable sealing structure 10,
Aviation pump motor 20 includes that motor shaft 9, shell 8 and the bearing 7 being arranged between motor shaft 9 and shell 8, aviation pump motor are close
Seal structure 10 is placed in the inside of aviation pump motor 20, flows into inside motor for sealing the gap between motor shaft 9 and bearing 7
Oil liquid.
In this application, it is graphite bearing that bearing 7, which is selected, and the friction plate 1 with metal material is with the use of the sealing generated
12 effect of face is best.
The aviation pump motor movable sealing structure of the application is mounted on motor shaft 9 by the inner hole of bushing 4, when motor shaft 9
To outside motor after fixed strain, spring 3 is in compressive state.When aviation pump motor 20 during operation, oil liquid L can be along
Gap 11 between motor shaft 9 and bearing 7 flows into inside motor, pushes friction plate 1 and axis by the elastic force that the compression of spring 3 generates
Hold the 7 formation sealing surface 12 at contact surface.When rotor high speed rotation, sealing surface 12 is then in a kind of dynamic sliding
Frotteurism effect, sealing effect becomes apparent in the case.
The advantages of aviation pump motor movable sealing structure of the application, is:
1) friction plate uses metal material, and wearability is good, and surface smoothness is high, and sealing effect is good；
2) pretightning force at sealing surface is provided with spring, the pretightning force controllability at sealing surface is good, by spring steel wire
Diameter, spring the number of turns, diameter, heat treatment process controlled, can by spring force control in OK range, can
Guarantee the leakproofness at sealing surface, and the frictional dissipation at sealing surface can be prevented excessive；
3) the motor diameter of axle is not damaged, and the service life of motor can be improved；
4) dynamic sealing long service life, motor line high reliablity, failure rate are low.
The aviation pump motor application with aviation pump motor movable sealing structure of the application is in small-power, high revolving speed, use
There is remarkable advantage in the pump of bad environments.
In the application, small-power refers to the aviation pump motor less than 1kW.
In order to verify the aviation pump motor movable sealing structure and aviation pump motor of the application, it is tested.It is trying
During testing, motor is dipped in experimental liquid, power of motor 45W, when working under the revolving speed of 10000r/min, to test liquid level
Apply the air pressure of 200Kpa, keep 15min, the dynamic sealing qualification rate of aviation pump motor can achieve 90% or more, have fine
Sealing effect.
The aviation pump motor movable sealing structure and aviation pump motor of the application, in use, motor is first on outfield or aircraft
The phase is turned over up to 1000 hours there is no leakage problem, sealing structure is reliable and stable.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of aviation pump motor movable sealing structure, which is characterized in that including
Friction plate (1), the friction plate (1) are used to relatively rotate with bearing (7) with form seal face (12)；
Bushing (4), the bushing (4) are relatively fixed to motor shaft (9), are used to provide the described the power of friction plate (1) rotation；
Sealing element (6), the sealing element (6) is connected to the bushing (4) and the friction plate (1), for transmitting the friction
The power of piece (1) rotation and sealing；
Spring (3), the spring (3) are set between the friction plate (1) and the bushing (4), are used to provide the described friction
Contact force between piece (1) and the bearing (7).
2. aviation pump motor movable sealing structure as described in claim 1, which is characterized in that further include protective case (5), the guarantor
Sheath (5) and the bushing (4) are relatively fixed, for protecting at least one in the bushing (4), sealing element (6) and spring (3)
Kind.
3. aviation pump motor movable sealing structure as claimed in claim 2, which is characterized in that the protective case (5) and the lining
It is relatively fixed to realize to cover (4) transition fit.
4. the aviation pump motor movable sealing structure as described in claims 1 to 3 is any, which is characterized in that the bushing (4) has
Protrusion (41) radially, the spring (3) are set to raised (41) and institute far from the one end of the friction plate (1)
It states between protective case (5), for limiting the movement of the spring (4) in the axial direction.
5. aviation pump motor movable sealing structure as described in claim 1, which is characterized in that the friction plate (1) is far from described
The side of bearing (7) is equipped with groove, and the groove with the sealing element (6) for being coupled.
6. aviation pump motor movable sealing structure as claimed in claim 4, which is characterized in that further include clamping sleeve (2), the pressure
Fixed (2) are set on the outside of the sealing element (6), in the groove for compressing the sealing element (6) Yu Suoshu friction plate (1).
7. aviation pump motor movable sealing structure as described in claim 1, which is characterized in that the friction plate (1) is metal material
Material.
8. aviation pump motor movable sealing structure as described in claim 1, which is characterized in that the size of the contact force is according to institute
At least one parameter stated in steel wire diameter, spring the number of turns, spring diameter and the wire heat treatment process of spring (3) is controlled
System.
9. a kind of aviation pump motor with aviation pump motor movable sealing structure as described in any of the claims 1 to 8, feature
It is, the aviation pump motor includes motor shaft (9), shell (8) and the bearing being arranged between motor shaft (9) and shell (8)
(7), the aviation pump motor movable sealing structure is placed in the inside of the aviation pump motor, for seal the motor shaft (9) with
Oil liquid between bearing (7).
10. aviation pump motor as claimed in claim 9, which is characterized in that the bearing (7) is graphite bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224414.7A CN109494920A (en) | 2018-10-19 | 2018-10-19 | Aviation pump motor movable sealing structure and aviation pump motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224414.7A CN109494920A (en) | 2018-10-19 | 2018-10-19 | Aviation pump motor movable sealing structure and aviation pump motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109494920A true CN109494920A (en) | 2019-03-19 |
Family
ID=65692480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811224414.7A Pending CN109494920A (en) | 2018-10-19 | 2018-10-19 | Aviation pump motor movable sealing structure and aviation pump motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109494920A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786524A (en) * | 2020-07-12 | 2020-10-16 | 陕西航空电气有限责任公司 | Oil-cooled intermediate-frequency three-phase asynchronous motor for aviation environment control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832391A (en) * | 2010-05-11 | 2010-09-15 | 华南理工大学 | Mechanical sealing device |
| JP2010223427A (en) * | 2009-02-18 | 2010-10-07 | Nsk Ltd | Damping device |
| CN201794774U (en) * | 2010-08-03 | 2011-04-13 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for hot water pump |
-
2018
- 2018-10-19 CN CN201811224414.7A patent/CN109494920A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010223427A (en) * | 2009-02-18 | 2010-10-07 | Nsk Ltd | Damping device |
| CN101832391A (en) * | 2010-05-11 | 2010-09-15 | 华南理工大学 | Mechanical sealing device |
| CN201794774U (en) * | 2010-08-03 | 2011-04-13 | 宁波伏尔肯机械密封件制造有限公司 | Mechanical sealing device for hot water pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786524A (en) * | 2020-07-12 | 2020-10-16 | 陕西航空电气有限责任公司 | Oil-cooled intermediate-frequency three-phase asynchronous motor for aviation environment control system |
| CN111786524B (en) * | 2020-07-12 | 2023-02-28 | 陕西航空电气有限责任公司 | Oil-cooled intermediate-frequency three-phase asynchronous motor for aviation environment control system |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |
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| RJ01 | Rejection of invention patent application after publication |