CN110481314A - Integrated form power assembly - Google Patents
Integrated form power assembly Download PDFInfo
- Publication number
- CN110481314A CN110481314A CN201910747861.9A CN201910747861A CN110481314A CN 110481314 A CN110481314 A CN 110481314A CN 201910747861 A CN201910747861 A CN 201910747861A CN 110481314 A CN110481314 A CN 110481314A
- Authority
- CN
- China
- Prior art keywords
- assembly cavity
- integrated form
- oil
- form power
- motor assembly
- 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
- 239000003921 oil Substances 0.000 claims abstract description 55
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 39
- 239000010687 lubricating oil Substances 0.000 claims abstract description 37
- 230000000712 assembly Effects 0.000 claims abstract description 16
- 238000000429 assembly Methods 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000194386 Coelosis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/12—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of electric gearing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention provides a kind of integrated form power assemblies, including shell, electric machine assembly and reducer assemblies；There is the motor assembly cavity and speed reducer assembly cavity being separated by by end wall in the shell；The integrated form power assembly further includes being located in the motor assembly cavity and being fixed on the disc in shaft, and have oil drain passage in the end wall；The disc, which is accepted, is leaked to the intracorporal lubricating oil of motor assembly chamber through the high-speed oil seal in the axis hole on the end wall, and the motor assembly cavity is discharged by the oil drain passage in the lubricating oil that the disc is accepted.It is accepted by disc and is leaked to the intracorporal lubricating oil of motor assembly chamber through high-speed oil seal, and motor assembly cavity is discharged by oil drain passage, even if lubricating oil can also be prevented to enter motor assembly cavity when spindle speed is higher, to guarantee that decelerating motor is safely operated.
Description
Technical field
The present embodiments relate to vehicle engine assembly fields, more specifically to a kind of integrated form power assembly.
Background technique
Permanent magnet synchronous motor has many advantages, such as low in energy consumption, high-efficient, speed-regulating range width, has been widely used at present electronic
The fields such as automobile.In many applications, to improve output torque, need to make permanent magnet synchronous motor and retarder cooperation
With.To simplify design and saving space, there is the integrated form power assembly that retarder and motor become one.
Existing integrated form power assembly includes axially distributed motor assembly cavity and speed reducer assembly cavity, wherein
There is electric machine assembly in motor assembly cavity, there is reducer assemblies, and electric machine assembly and retarder in speed reducer assembly cavity
Component shares a shaft.It is smooth to make to be driven, while abrasion is reduced, speed reducer assembly cavity is equipped with lubricating oil, and motor is total
It is isolated between cavity and speed reducer assembly cavity by high-speed oil seal, in case lubricating oil enters in motor assembly cavity.At present
High-speed oil seal using conventional outside framework oil seal, linear velocity generally requirement≤26m/s.
With integrated and high speed development, the revolving speed of current motor has reached 15000-20000rpm, correspondingly,
Linear velocity constantly increases (about >=45m/s) at the diameter of axle of high-speed oil seal between motor assembly cavity and speed reducer assembly cavity,
Considerably beyond the linear velocity requirement of existing outside framework oil seal, it is difficult to guarantee that it is total not to be leaked into motor for lubricating oil in life cycle
At cavity.Once lubricating oil enters motor assembly cavity, it will lead to the insulation damage layer of electric machine assembly, high-voltage safety or knot occur
The serious problems such as structure destruction.
Summary of the invention
For the embodiment of the present invention for above-mentioned integrated form power assembly high speed oil sealing when place's linear velocity is higher, retarder is total
At cavity lubricating oil can aerial drainage to motor assembly cavity, and lead to the insulation damage layer of electric machine assembly, occur high-voltage safety or
The problems such as structure is destroyed provides a kind of new integrated form power assembly.
The technical solution that the embodiment of the present invention solves above-mentioned technical problem is to provide a kind of integrated form power assembly, including
Shell, electric machine assembly and reducer assemblies；There is the motor assembly cavity and retarder being separated by by end wall in the shell
Assembly cavity, and the electric machine assembly is located in the motor assembly cavity, it is total that the reducer assemblies are located at the retarder
In coelosis body；There is axis hole on the end wall, there is high-speed oil seal, and the shaft of the electric machine assembly passes through institute in the axis hole
It states high-speed oil seal and protrudes into the speed reducer assembly cavity；The integrated form power assembly further includes being located at the motor assembly cavity
Disc that is interior and being fixed in the shaft, and the end wall has oil drain passage；Wherein: the disc is accepted described in warp
High-speed oil seal in axis hole is leaked to the intracorporal lubricating oil of motor assembly chamber, and the lubricating oil that the disc is accepted passes through
The motor assembly cavity is discharged in the oil drain passage.
Preferably, the disc includes the portion that axially traps and radial blocking portion, and described axially traps portion and described turn
Axis is fixedly connected and seals；It is described to axially trap portion and the dished disk of radial blocking portion group, the opening direction of the disk
The axis hole, and the diameter of the opening of the disk is greater than the diameter of the axis hole.
Preferably, the oil drain passage includes collection chamber, and the collection chamber on the end wall around the axis hole by being arranged
Annular groove constitute, and the collection chamber have towards the motor assembly cavity annular opening；The radial direction blocking portion
Free end the collection chamber is protruded by the annular opening.
Preferably, the oil drain passage includes outage and plug of draining the oil, in which: the outage is located at the end wall simultaneously
Along being arranged radially for the end wall, and one end of the outage is connected to the collection chamber, the other end is outer with the shell
Portion's connection；The plug of draining the oil is movably connected in the opening that the outage is connected to the shell.
Preferably, the oil drain passage includes check valve, the inlet of the check valve directly or by the first conduit with
The collection chamber connection, liquid outlet are connected to directly or by the second conduit with the speed reducer assembly cavity.
Preferably, the end wall is equipped with first annular block and the second collar stop, in which: the first annular block
It is fixedly connected on the edge positioned at motor assembly cavity side of the lateral wall of the annular groove, and vertical protrudes from institute
State lateral wall；Second collar stop be fixedly connected on the inner sidewall of the annular groove be located at the motor assembly cavity
The edge of side, and vertical protrude from the inner sidewall；The annular opening is kept off by the first annular block and the second annular
Gap between block is constituted.
Preferably, the end wall with magnetizable metal material by constituting；The first annular block and the second annular gear
Block is made of magnet respectively.
Preferably, portion and the side towards the end wall of radial blocking portion of axially trapping has the leaf being arranged radially
Film trap.
Preferably, the reducer assemblies include input shaft, the input shaft and shaft one or pass through spline company
It connects.
The integrated form power assembly of the embodiment of the present invention is accepted by disc and is leaked to motor assembly chamber through high-speed oil seal
Intracorporal lubricating oil, and motor assembly cavity is discharged by oil drain passage, even if can also prevent to lubricate when spindle speed is higher
Oil enters motor assembly cavity, to guarantee that motor built-in electrical insulation is reliable, safe operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the integrated form power assembly that first embodiment of the invention provides；
Fig. 2 is the structural schematic diagram for the integrated form power assembly that second embodiment of the invention provides.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Figure 1, being the structural schematic diagram for the integrated form power assembly that first embodiment of the invention provides, the integrated form
Power assembly includes motor part and retarder parts, and the torque that retarder parts can export motor part increases, thus real
Existing biggish torque output.The integrated form power assembly of the present embodiment may include shell, electric machine assembly and reducer assemblies, above-mentioned
There is motor assembly cavity 11 and speed reducer assembly cavity 21, and motor assembly cavity 11 and speed reducer assembly cavity 21 in shell
It is separated by by end wall 31.Above-mentioned shell can be integrally formed, i.e. at least the one of motor assembly cavity 11 and speed reducer assembly cavity 21
Part cavity wall is integrally formed, such as end wall 31 is both cavity wall a part of motor assembly cavity 11, is also speed reducer assembly cavity
A part of 21 cavity wall.
Electric machine assembly is located in motor assembly cavity 11, and electric machine assembly includes shaft 12, stator 13, rotor 14 etc., on
Shaft high-speed rotation can be made under the driving of electric machine controller by stating electric machine assembly.There is axis hole on end wall 31, have in the axis hole
High-speed oil seal 32, and the shaft 12 of electric machine assembly passes through high-speed oil seal 32 and protrudes into speed reducer assembly cavity 21.Reducer assemblies position
In in speed reducer assembly cavity 21, and reducer assemblies include input shaft 22 and transmission gear, and above-mentioned input shaft 22 is by motor
The shaft 12 of component drives rotation, and driving gear set follows the rotation of input shaft 22 to generate biggish output torque.
The input shaft 22 of above-mentioned reducer assemblies and the shaft 12 of electric machine assembly are coaxially disposed, and in practical applications, are slowed down
The input shaft 22 of device assembly can be with the one of shaft 12 of electric machine assembly, alternatively, the input shaft 22 of reducer assemblies can also be with
The shaft 12 of electric machine assembly is connected by spline, i.e. the input shaft 22 of reducer assemblies and the shaft 12 of electric machine assembly passes through spline
Transmit torque.Specifically, shaft 12 is with input shaft 22 (integrally or by spline being fixedly connected) by first bearing 15, the second axis
Hold 24 and the fixed installation of 3rd bearing 23.
Above-mentioned integrated form power assembly further includes the disc in motor assembly cavity 11 and being fixed in shaft 12
33, and there is oil drain passage in end wall.Wherein, above-mentioned disc 33 is between end wall 31 and electric machine assembly, and covers axis hole
Opening positioned at 11 side of motor assembly cavity is leaked in motor assembly cavity 11 with accepting through the high-speed oil seal in axis hole
Lubricating oil, and motor assembly cavity 11 is discharged by oil drain passage in the lubricating oil that disc 33 is accepted.
In the operation of above-mentioned integrated form power assembly, the profit of reducer assemblies in speed reducer assembly cavity 21 in lubricating oil
The torque that shaft 12 inputs is amplified into output under sliding effect.When the parts of lubricating oil in speed reducer assembly cavity 21 is in shaft
It is revealed when 12 high speed rotations (revolving speed at the axle journal of high-speed oil seal 32 is more than 26m/s), and enters motor assembly cavity
11, the disc 33 for following shaft 12 to rotate can accept the above-mentioned lubrication being leaked in motor assembly cavity 11 through high-speed oil seal
Then oil is discharged to outside motor assembly cavity by oil drain passage.By above structure, even if in the higher (example of 12 revolving speed of shaft
Such as 15000rpm-20000rpm) when, lubricating oil can also be prevented to enter motor assembly cavity 11, electric machine assembly is avoided to touch
Lubricating oil ensure that the safe operation of motor.
In one embodiment of the invention, above-mentioned disc 33 includes the portion that axially traps and radial blocking portion, axis
To blocking portion to stop the lubricating oil revealed through high-speed oil seal 32 to move axially in motor assembly cavity 11, radial oil retaining part
It to stop lubricating oil to be moved in motor assembly cavity 11 from radial direction, and axially traps portion and is fixedly connected with shaft, such as
This axially traps portion and shaft and is integrally formed, and the modes such as is perhaps interference fitted or welds.Also, it is above-mentioned axially trap portion and
The radial dished disk of blocking portion group, towards the axis hole on end wall 31, (i.e. axis hole is located at motor to the opening of the disk of the spill
The opening of 11 side of assembly cavity), and the diameter of the opening of above-mentioned disk is greater than the diameter of axis hole.
Specifically, above-mentioned oil drain passage include can collection chamber 34, the collection chamber 34 by end wall 31 around axis hole be arranged
Annular groove is constituted, and the collection chamber 34 has the annular opening towards motor assembly cavity 11.The radial of disc 33 stops
Collection chamber 34 is protruded by annular opening in the free end in portion, in this way, the lubricating oil either sputtered by axis hole, or by along
The lubricating oil that end wall 31 drips, disc 33 can all be accepted, and get rid of into or instill collection chamber 34 lubricating oil of undertaking, to keep away
Exempt from lubricating oil to be attached on stator 13, rotor 14 etc. and insulation fault occurs.
Also, above-mentioned oil drain passage may also include outage 37 and plug 38 of draining the oil.Above-mentioned outage 37 is located at end wall 31
And being arranged radially along end wall 31, and one end of the outage 37 is connected to collection chamber 34, the other end is connected to the external of shell,
To which the lubricating oil in collection chamber 34 can enter outage 37, and the outside of shell is discharged to by outage 37.Specifically, on
The lower section that outage 37 can be located at collection chamber 34 is stated, i.e., the opening that outage 37 is connected to collection chamber 34 is located at the bottom of collection chamber 34
Portion, so that the lubricating oil in collection chamber 34 can by gravity flow into outage 37.Certainly, in practical applications, oil extraction
The conduit independently of end wall 31 can also be used in hole 37, but this can make structure relative complex, installation and troublesome maintenance.
Plug 38 of draining the oil is movably connected in the opening of outage 37 being connected to shell, i.e., is usually passing through plug of draining the oil
38 block outage 37, ooze pollution environment to avoid lubricating oil, and can periodically remove plug 38 of draining the oil and be let out with what will be collected
Leakage embellishing lubricating oil is released.Particularly, above-mentioned outage 37 has internal screw thread with external one end being connected to of shell, and draining the oil plug 38 can
Bolt is used, is movably attached at outage 37 so that plug 38 of draining the oil can be connected through a screw thread mode, not only stable connection, and
And it is convenient for disassembly and assembly.
As shown in Fig. 2, in another embodiment of the invention, above-mentioned oil drain passage can also be by check valve 39 by collection chamber
Lubricating oil in 34 is discharged to speed reducer assembly cavity 21.The inlet of the check valve 39 is directly or by the first conduit and oil-collecting
The connection of chamber 34, liquid outlet are connected to directly or by the second conduit with speed reducer assembly cavity 21, i.e. lubricating oil in collection chamber 34
It can be directly drained into speed reducer assembly cavity 21 by check valve 39, and due to the one-way conduction characteristic of check valve 39, subtracted
Lubricating oil in fast device assembly cavity 21 may not flow into collection chamber 34.Particularly, above-mentioned check valve 39 can be located at collection chamber 34
Bottom, so that the lubricating oil in collection chamber 34 can automatically flow into speed reducer assembly cavity 21 under the effect of gravity, without
Regular manual oil extraction.
To avoid lubricating oil from being leaked to motor assembly cavity 11, settable first ring on above-mentioned end wall 31 from collection chamber 34
Shape block 35 and the second collar stop 36, wherein first annular block 35 is fixedly connected on the outside of the annular groove of collection chamber 34
The edge (be located at 11 side of motor assembly cavity) of wall (i.e. far from the side wall of axis hole), and vertical protrude from lateral wall；Second ring
The edge that shape block 36 is fixedly connected on the inner sidewall (i.e. close to the side wall of axis hole) of the annular groove of collection chamber 34 (is located at motor
11 side of assembly cavity), and vertical protrude from inner sidewall；The annular opening of collection chamber 34 is by first annular block 35 and the second ring
Gap between shape block 36 is constituted.
Particularly, above-mentioned end wall 31 can by with magnetizable metal material (can by magnet adsorb material) constitute,
And first annular block 35 and the second collar stop 36 are then made of magnet respectively, thus first annular block 35 and the second annular
Block 36 can be fixedly installed at the annular groove of collection chamber 34 by suction type.Certainly, in practical applications, above-mentioned first
Collar stop 35 and the second collar stop 36 can also be integrally formed (i.e. first annular block 35 and the second collar stop with end wall 31
36 use material identical with end wall 31), but this considerably increases the difficulty of processing of shell.In addition, first annular 35 He of block
Other modes also can be used in conjunction with annular groove in second collar stop 36, such as be threadedly coupled, weld etc..
In addition, the side towards end wall 31 for axially trapping portion and radial blocking portion of above-mentioned disc 33, can set respectively
Radial blade groove is set, it is more smooth which flow lubricating oil in disc 33, thus what disc 33 was accepted
Lubricating oil can be slipped in collection chamber 34 along blade groove.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (9)
1. a kind of integrated form power assembly, including shell, electric machine assembly and reducer assemblies；Have in the shell and passes through end
The motor assembly cavity and speed reducer assembly cavity that wall is separated by, and the electric machine assembly is located in the motor assembly cavity, institute
Reducer assemblies are stated to be located in the speed reducer assembly cavity；There is axis hole on the end wall, there is high speed oil in the axis hole
Envelope, and the shaft of the electric machine assembly passes through the high-speed oil seal and protrudes into the speed reducer assembly cavity；It is characterized in that, described
Integrated form power assembly further includes positioned at the disc that the motor assembly cavity is interior and is fixed in the shaft, and the end
There is oil drain passage in wall；Wherein: the disc, which is accepted, is leaked to the motor assembly through the high-speed oil seal in the axis hole
The intracorporal lubricating oil of chamber, and the motor assembly cavity is discharged by the oil drain passage in the lubricating oil that the disc is accepted.
2. integrated form power assembly according to claim 1, which is characterized in that the disc include axially trap portion and
Radial blocking portion, and described axially trap portion and be fixedly connected and seal with the shaft；It is described to axially trap portion and radial blocking
The dished disk of portion's group, the opening of the disk is towards the axis hole, and the diameter of the opening of the disk is greater than the axis
The diameter in hole.
3. integrated form power assembly according to claim 2, which is characterized in that the oil drain passage includes collection chamber, institute
It states collection chamber to be made of the annular groove on the end wall around axis hole setting, and the collection chamber has towards the electricity
The annular opening of machine assembly cavity；The collection chamber is protruded by the annular opening in the free end of the radial direction blocking portion.
4. integrated form power assembly according to claim 3, which is characterized in that the oil drain passage includes outage and puts
Oily plug, in which: the outage is located at the end wall and being arranged radially along the end wall, and one end of the outage with
The collection chamber connection, the other end are connected to the external of the shell；The plug of draining the oil be movably connected in the outage with
The opening of the shell connection.
5. integrated form power assembly according to claim 3, which is characterized in that the oil drain passage includes check valve, institute
The inlet for stating check valve is connected to directly or by the first conduit with the collection chamber, liquid outlet directly or by the second conduit with
The speed reducer assembly cavity connection.
6. integrated form power assembly according to claim 3, which is characterized in that the end wall is equipped with first annular block
With the second collar stop, in which: it is described that the first annular block is fixedly connected on being located at for the lateral wall of the annular groove
The edge of motor assembly cavity side, and vertical protrude from the lateral wall；Second collar stop is fixedly connected on described
The edge positioned at motor assembly cavity side of the inner sidewall of annular groove, and vertical protrude from the inner sidewall；It is described
Annular opening is made of the gap between the first annular block and the second collar stop.
7. integrated form power assembly according to claim 6, which is characterized in that the end wall is by with magnetizable metal
Material is constituted；The first annular block and the second collar stop are made of magnet respectively.
8. integrated form power assembly according to claim 2, which is characterized in that described to axially trap portion and radial blocking portion
The side towards the end wall there is the blade groove that is arranged radially.
9. integrated form power assembly according to claim 1, which is characterized in that the reducer assemblies include input shaft,
The input shaft is connect with the shaft one or by spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747861.9A CN110481314A (en) | 2019-08-14 | 2019-08-14 | Integrated form power assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910747861.9A CN110481314A (en) | 2019-08-14 | 2019-08-14 | Integrated form power assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110481314A true CN110481314A (en) | 2019-11-22 |
Family
ID=68551052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910747861.9A Pending CN110481314A (en) | 2019-08-14 | 2019-08-14 | Integrated form power assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110481314A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209178A (en) * | 1975-01-10 | 1980-06-24 | Philco-Ford Corporation | Lubricant seal |
| JP2004286082A (en) * | 2003-03-20 | 2004-10-14 | Mitsubishi Electric Corp | Sealing structure of lubricating oil for motor bearing |
| JP2010180899A (en) * | 2009-02-03 | 2010-08-19 | Nok Corp | Sealing device |
| CN102829315A (en) * | 2012-08-30 | 2012-12-19 | 浙江平柴泵业有限公司 | Leakage-free energy-saving oil pump |
| CN204200658U (en) * | 2014-10-27 | 2015-03-11 | 安徽科达埃尔压缩机有限公司 | For the oil sealing device of multistage centrifugal blower |
| CN105090064A (en) * | 2015-08-04 | 2015-11-25 | 姜广义 | High-speed directly connected water vapor compressor |
| CN105465364A (en) * | 2015-12-28 | 2016-04-06 | 中天昱品科技有限公司 | Sealing mechanism for shaft head of hauling drum |
| CN205532922U (en) * | 2016-02-15 | 2016-08-31 | 东风朝阳朝柴动力环保科技有限公司 | Engine crankshaft microcephaly holds seal structure with dustproof function |
| CN109760500A (en) * | 2019-03-14 | 2019-05-17 | 株洲齿轮有限责任公司 | Electric car, integrated dynamic assembly and its shell |
| CN210617848U (en) * | 2019-08-14 | 2020-05-26 | 苏州汇川技术有限公司 | Integrated power assembly |
-
2019
- 2019-08-14 CN CN201910747861.9A patent/CN110481314A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209178A (en) * | 1975-01-10 | 1980-06-24 | Philco-Ford Corporation | Lubricant seal |
| JP2004286082A (en) * | 2003-03-20 | 2004-10-14 | Mitsubishi Electric Corp | Sealing structure of lubricating oil for motor bearing |
| JP2010180899A (en) * | 2009-02-03 | 2010-08-19 | Nok Corp | Sealing device |
| CN102829315A (en) * | 2012-08-30 | 2012-12-19 | 浙江平柴泵业有限公司 | Leakage-free energy-saving oil pump |
| CN204200658U (en) * | 2014-10-27 | 2015-03-11 | 安徽科达埃尔压缩机有限公司 | For the oil sealing device of multistage centrifugal blower |
| CN105090064A (en) * | 2015-08-04 | 2015-11-25 | 姜广义 | High-speed directly connected water vapor compressor |
| CN105465364A (en) * | 2015-12-28 | 2016-04-06 | 中天昱品科技有限公司 | Sealing mechanism for shaft head of hauling drum |
| CN205532922U (en) * | 2016-02-15 | 2016-08-31 | 东风朝阳朝柴动力环保科技有限公司 | Engine crankshaft microcephaly holds seal structure with dustproof function |
| CN109760500A (en) * | 2019-03-14 | 2019-05-17 | 株洲齿轮有限责任公司 | Electric car, integrated dynamic assembly and its shell |
| CN210617848U (en) * | 2019-08-14 | 2020-05-26 | 苏州汇川技术有限公司 | Integrated power assembly |
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