CN109681423A - A kind of integrated hydraulic power unit based on external rotor electric machine - Google Patents
A kind of integrated hydraulic power unit based on external rotor electric machine Download PDFInfo
- Publication number
- CN109681423A CN109681423A CN201811542519.7A CN201811542519A CN109681423A CN 109681423 A CN109681423 A CN 109681423A CN 201811542519 A CN201811542519 A CN 201811542519A CN 109681423 A CN109681423 A CN 109681423A
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- Prior art keywords
- rotor
- electric machine
- pump
- blade
- power unit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a kind of integrated hydraulic power unit based on external rotor electric machine, and including fuel tank and the electro-hydraulic pump for being mounted on fuel tank internal, electro-hydraulic pump includes external rotor electric machine, vane pump and electro-hydraulic pump case；Electro-hydraulic pump case includes the drive end bearing bracket being successively linked in sequence, preceding oil distribution casing, blade pump stator, rear oil distribution casing, rear end cap；External rotor electric machine includes support shaft, electric motor internal stator and motor outer rotor, and the both ends connection drive end bearing bracket and rear end cap, motor outer rotor of support shaft are supported on the inside of drive end bearing bracket and the inside of rear end cap；Vane pump is arranged between preceding oil distribution casing and rear oil distribution casing, and vane pump includes blade pump rotor, blade pump stator and blade, has the cavity moved for blade radial between blade pump rotor and blade pump stator；Permanent magnetic steel is embedded on the inside of motor outer rotor.Structure of the invention is more compact, weight and volume is small, reduces vibration, avoids using and revealing for axle envelope, improves reliability.
Description
Technical field
The present invention relates to integrated hydraulic power unit fields, particularly relate to a kind of integrated form liquid based on external rotor electric machine
Pressure power unit.
Background technique
Currently, hydraulic power unit is the heart of hydraulic system, the conventional hydraulic power list using motor as prime mover
Member is that independent hydraulic pump is carried out axial arrangement with independent motor with devices such as shaft coupling, support frames to connect mostly,
Whole device takes up space greatly, total quality weight.Meanwhile because shaft coupling is caused by connecting hydraulic pump and decentraction when motor
Vibration and noise, and be all current hydraulic dynamic because of the leakage that sealing wear generates at hydraulic pump outrigger shaft after working long hours
Power unit problem to be solved.Domestic scientific research personnel attempts motor and hydraulic pump carrying out co-rotor, is total to melting for shell
Close design --- electro-hydraulic pump.
The cylinder body of axial plunger pump has been integrated in turning for threephase asynchronous by Chinese invention patent CN106089624A
Sub internal, when rotor rotates, drivig cylinder is rotated jointly, and suction, oil extraction, and plunger pump and electricity are completed under the cooperation of plunger
Motivation is incorporated into a shell；
Chinese invention patent CN102628435A is the inside that vane pump is integrated in threephase asynchronous machine rotor, using with
The connected splined shaft of rotor drives blade pump rotor rotation to work, and motor and hydraulic pump share same housing.
Above-mentioned motor and hydraulic pump carry out the patent of Combined design, mostly use asynchronous machine greatly, speed adjusting performance is poor, and all
It is that hydraulic pump has been integrated in inside motor rotor, and the inner space very little of ro-tors in electrical, installation requirement to be reached,
The structure for needing to redesign rotor even changes the overall construction of motor.In addition, either traditional discrete type is hydraulic
Power unit is all to be connect by pipeline with fuel tank to realize oil suction still by motor, the electro-hydraulic pump of hydraulic pump Combined design,
Leakage can bring inconvenience to the management service of equipment caused by degenerating or wear because of piping connection position.
Summary of the invention
The purpose of the present invention is to provide a kind of integrated hydraulic power unit based on external rotor electric machine, it is existing for solving
Have in technology that speed adjusting performance is poor, overall construction design is complicated, easy oil leakage and the problem of less reliable.
To achieve the above object, the present invention the following technical schemes are provided:
A kind of integrated hydraulic power unit based on external rotor electric machine including fuel tank and is mounted on the fuel tank internal
Electro-hydraulic pump, the electro-hydraulic pump includes external rotor electric machine, vane pump and electro-hydraulic pump case；
The electro-hydraulic pump case include the drive end bearing bracket being successively linked in sequence, preceding oil distribution casing, blade pump stator, rear oil distribution casing,
Rear end cap；
The external rotor electric machine includes support shaft, the electric motor internal stator being arranged in support shaft and is arranged in the motor
Motor outer rotor on the outside of stator circumference, the both ends of the support shaft connect the drive end bearing bracket and rear end cap, turn outside the motor
Son is supported on the inside of the drive end bearing bracket and the inside of rear end cap；
Between the preceding oil distribution casing and the rear oil distribution casing, the vane pump includes being mounted on institute for the vane pump setting
It states the blade pump rotor in the middle part of motor outer rotor outer surface and the blade pump stator of the blade pump rotor periphery is set,
There is the cavity moved for blade radial between the blade pump rotor and the blade pump stator；
It further include being embedded in permanent magnetic steel on the inside of the motor outer rotor.
Wherein, the motor outer rotor passes through fore bearing respectively and rear bearing is supported on the inside and rear end of the drive end bearing bracket
The inside of lid.
Wherein, the blade pump rotor is radially provided with multiple rotor slots, and pin passes through rotor trench bottom and pin
Blade is slidably placed in rotor slot by the column pin hole between the oil groove of bottom.
Wherein, the outer surface of the electric motor internal stator is equipped with epoxy resin, the outer surface of the electric motor internal stator and institute
It states epoxy resin and collectively forms smooth surface, form annular between the smooth surface and the inner surface of the motor outer rotor and hold
Chamber.Wherein, the motor outer rotor inner surface offers tile-type slot, the installation permanent magnetic steel in the tile-type slot.
Wherein, the both ends of the support shaft are fixedly connected with the drive end bearing bracket with the rear end cap respectively by flat key.
Wherein, the blade pump rotor and the motor outer rotor are interference fitted.
Wherein, the drive end bearing bracket is connect by the flange of periphery with fuel tank using connection bolt.
Wherein, the fore bearing and the rear bearing use cages for needle component.
Wherein, it is equipped with high-voltage oil liquid runner inside the drive end bearing bracket, waist type oil discharge outlet will be discharged from drive end bearing bracket
A part of high-voltage oil liquid be introduced into blade pump rotor in the oil groove of pin bottom, and offer a power supply line on drive end bearing bracket and stretch
Outlet.
The advantageous effects of the above technical solutions of the present invention are as follows:
In above scheme, the integrated hydraulic power unit of the invention based on external rotor electric machine reduces shaft coupling, branch
The use of the components such as support reduces the weight and volume of device, when avoiding operating because shaft coupling connection hydraulic pump with
Vibration caused by motor decentraction；Outrigger shaft is not present in the present invention, avoids the use of axle envelope and resulting lets out
Dew；The present invention uses the pattern of outer-rotor permanent magnet motor, is more convenient to realize the control to motor speed.It is outer to turn under same volume
Sub-motor can export bigger torque, be more suitable and the integrated use of hydraulic pump；Blade pump rotor of the invention is directly integrated in
On the rotor of external rotor electric machine, other transmission mechanisms are eliminated, the structure of whole device is more compact；Electro-hydraulic pump of the invention is straight
It connects and has been mounted on fuel tank internal, no longer need additional piping connection between the two, avoid to wear because of piping connection position and send out
Raw leakage, improves reliability.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Fig. 2 is the overall appearance figure of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Fig. 3 be the integrated hydraulic power unit of the invention based on external rotor electric machine A-A to cross-sectional view；
Fig. 4 is the cross-sectional view of the B-B direction of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Fig. 5 is the structural schematic diagram of the drive end bearing bracket of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Fig. 6 be the integrated hydraulic power unit of the invention based on external rotor electric machine drive end bearing bracket C-C to section view
Figure；
Fig. 7 is the main view of the preceding oil distribution casing of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Fig. 8 be the integrated hydraulic power unit of the invention based on external rotor electric machine preceding oil distribution casing D-D to cut open
Depending on；
Fig. 9 is the main view of the rear oil distribution casing of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Figure 10 be the integrated hydraulic power unit of the invention based on external rotor electric machine rear oil distribution casing E-E to cut open
View；
Figure 11 is the structure chart of the blade pump rotor of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Figure 12 be the integrated hydraulic power unit of the invention based on external rotor electric machine blade pump rotor F-F to
Cross-sectional view；
Figure 13 is the structural schematic diagram of the rear end cap of the integrated hydraulic power unit of the invention based on external rotor electric machine；
Figure 14 be the integrated hydraulic power unit of the invention based on external rotor electric machine rear end cap G-G to section view
Figure.
Appended drawing reference:
1, drive end bearing bracket；1a, drive end bearing bracket waist type outage；1b, high-voltage oil liquid runner；1c, power supply line extending port；1d, elasticity
Circlip groove；2, preceding oil distribution casing；2a, dowel hole；2b, bolt hole；2c, waist type go out oil hole；2d, preceding oil distribution casing V-groove；3, leaf
Piece pump stator；4, rear oil distribution casing；4a, waist type oil inlet through-hole；4b, rear oil distribution casing Silencing groove；5, rear end cap；5a, rear end cap waist type
Oil-sucking hole；5b, oilhole；6, blade；7, pin；8, blade pump rotor；8a, annular high voltage oil sump tank；8b, blade pump rotor stream
Road；8c, pin bottom oil groove；8d, column pin hole；8e, rotor slot；9, motor outer rotor；9a, permanent magnetic steel；10, motor is default
Son；10a, epoxy resin；11, support shaft；12, rear bearing；13, fixing bolt, 14, resilient bearing retaining ring；15, fore bearing；16,
Flat key；17, bolt is connected；18, sealing ring；19, fuel tank；19a, oil return opening；20, closed containing cavity.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention is poor existing speed adjusting performance, overall construction design is complicated, easy oil leakage and aiming at the problem that less reliable,
A kind of integrated hydraulic power unit based on external rotor electric machine is provided.
As represented in figures 1 through 14, the embodiment of the invention provides a kind of integrated hydraulic power list based on external rotor electric machine
Member, including fuel tank 19 and the electro-hydraulic pump that is mounted on the fuel tank 19 inside, the electro-hydraulic pump including external rotor electric machine, vane pump and
Electro-hydraulic pump case；
The electro-hydraulic pump case includes the drive end bearing bracket 1 being successively linked in sequence, preceding oil distribution casing 2, blade pump stator 3, matches oil afterwards
Disk 4, rear end cap 5；
The external rotor electric machine includes support shaft 11, the electric motor internal stator being arranged in support shaft 11 10 and is arranged described
The both ends of the motor outer rotor 9 of 10 periphery of electric motor internal stator, the support shaft 11 connect the drive end bearing bracket 1 and rear end cap 5,
The motor outer rotor 9 is supported on the inside of the drive end bearing bracket 1 and the inside of rear end cap 5；
Between the preceding oil distribution casing 2 and the rear oil distribution casing 4, the vane pump includes being mounted on for the vane pump setting
Blade pump rotor 8 in the middle part of 9 outer surface of motor outer rotor and the vane pump that 8 periphery of blade pump rotor is set
Stator 3 has the cavity for 6 radial motion of blade between the blade pump rotor 8 and the blade pump stator 3；
It further include being embedded in the 9 inside permanent magnetic steel 9a of motor outer rotor.
The external rotor electric machine of the invention is external rotor permanent magnet synchronous machine or outer rotor brushless DC motor.
Wherein, the motor outer rotor 9 is supported on the inside of the drive end bearing bracket 1 by fore bearing 15 and rear bearing 12 respectively
With the inside of rear end cap 5.
As depicted in figs. 11-12, wherein the blade pump rotor 8 is radially provided with multiple rotor slot 8e, and pin 7 passes through
Blade 6 is slidably placed in rotor slot 8e by the column pin hole 8d being located between the bottom rotor slot 8e and pin bottom oil groove 8c
In.
Wherein, the outer surface of the electric motor internal stator 10 is equipped with epoxy resin 10a, the appearance of the electric motor internal stator 10
Face and the epoxy resin 10a collectively form smooth surface, between the smooth surface and the inner surface of the motor outer rotor 9
Form ring-shaped chamber.The epoxy resin 10a be poured in electric motor internal stator 10 close to outer surface so that electric motor internal stator 10
Rough peripheral surface becomes more rule and smooth circumferential surface, then the inner surface shape on this surface and outer rotor
At the ring-shaped chamber of a regular shape, be conducive to reduce the loss for stirring oil.
The regular shape of the ring-shaped chamber of the invention and smooth.
As shown in Figure 2, wherein 9 inner surface of motor outer rotor offers tile-type slot, installs institute in the tile-type slot
State permanent magnetic steel 9a.
It is dynamic to reduce integrated hydraulic in the tile-type slot that rotor inner surface opens up by the permanent magnetic steel 9a of invention
External rotor electric machine stirs oily loss to power unit during the work time.
Wherein, the both ends of the support shaft 11 are fixed respectively with the drive end bearing bracket 1 and the rear end cap 5 by flat key 16 and are connected
It connects.
Wherein, the blade pump rotor 8 is interference fitted with the motor outer rotor 9.
Wherein, the drive end bearing bracket 1 is connect by the flange of periphery with fuel tank 19 using connection bolt.
Sealing ring 18 is provided between drive end bearing bracket 1 and the fuel tank 19 connection of the present invention.
Wherein, the fore bearing 15 and the rear bearing 12 use cages for needle component.
Wherein, high-voltage oil liquid runner 1b is equipped with inside the drive end bearing bracket 1, it will be from drive end bearing bracket waist type oil extraction on drive end bearing bracket 1
A part of high-voltage oil liquid that hole 1a is discharged is introduced into blade pump rotor 8 in the oil groove of 7 bottom of pin, and opens on drive end bearing bracket 1
Equipped with a power supply line extending port 1c.
As seen in figs. 5-6, drive end bearing bracket waist type outage 1a, high pressure oil liquid stream are provided on the drive end bearing bracket 1 of the invention
Road 1b, power supply line extending port 1c, circlip slot 1d.
As is seen in figs 7-10, dowel hole 2a, bolt hole 2b, waist type are offered on the preceding oil distribution casing 2 of the invention
Oil hole 2c, preceding oil distribution casing V-groove 2d out.When installation, oil hole, complete with the position of drive end bearing bracket waist type oil extraction through-hole 1a should be gone out
It is corresponding.V-groove, waist type on preceding oil distribution casing 2 go out oil hole 2c, cooperate work with the rear oil distribution casing Silencing groove 4b on rear oil distribution casing 4
Make, pre-loading and pre- pressure release can be played the role of in vane pump operating, can effectively reduce integrated hydraulic power unit
The vibration generated during the work time and noise.For another example it shown in Fig. 9-10, is offered on the rear oil distribution casing 4 of the invention
Waist type oil inlet through-hole 4a, rear oil distribution casing waist type Silencing groove 4b.When installation, the oil inlet through-hole, with rear end cap oil suction waist-shaped hole 5a
Position is completely corresponding.
As shown in Fig. 5-6 and Figure 11-12, annular high voltage oil receipts are offered on the blade pump rotor 8 of the invention
Collect slot 8a, blade pump rotor runner 8b, pin bottom oil groove 8c, column pin hole 8d, rotor slot 8e, turns outside the bottom oil groove and motor
An annular grease chamber is formed between sub 9 surfaces.High-voltage oil liquid when installation, on annular high voltage oil sump tank 8a and drive end bearing bracket 1
Runner 1b is corresponding.
As illustrated in figs. 13-14, rear end cap oil suction waist-shaped hole 5a, oilhole 5b are provided on the rear end cap 5 of the invention
It may make the oil liquid in fuel tank 19 to enter in the gap of electric motor internal stator 10, be conducive to radiate, reduce the temperature rise of armature winding.Afterwards
Position corresponding with the waist-shaped hole of end cap oil suction thereafter 5a offers threaded hole on end cap 5 and the one side of 19 inner fluid of fuel tank contact,
Filter device can be installed additional, herein to guarantee the cleannes of hydraulic system oil.
When the integrated hydraulic power unit work based on external rotor electric machine of the invention, filled with oil liquid inside fuel tank 19,
Electromagnetic torque is generated between the permanent magnetic steel 9a of 9 inner surface of electric motor internal stator 10 and motor outer rotor of energization, outside driving motor
The operating of rotor 9 is to drive blade pump rotor 8 to rotate.Blade in 8 slot of blade pump rotor is thrown under the influence of centrifugal force
The inner surface of blade pump stator 3, at this point, the closed containing cavity 20 that two adjacent blades 6 are formed with preceding oil distribution casing 2 and rear oil distribution casing 4 increases
Big and reduction, when closed containing cavity 20 increases, which generates negative pressure, sucks oil liquid out of fuel tank 19, makes oil liquid through on rear end cap 5
Rear end cap oil suction waist-shaped hole 5a and rear oil distribution casing 4 on waist type oil inlet through-hole 4a enter cavity, when blade pump rotor 8 turns over
At 90 °, so that 20 volume of closed containing cavity reduces.Oil liquid in the cavity is extruded, and the waist type before then passing through on oil distribution casing 2 goes out
Oilhole 2c, from the outage 1a discharge on drive end bearing bracket 1.
High-voltage oil liquid runner 1b is offered on drive end bearing bracket 1, and a part of high-voltage oil liquid being discharged from outage 1a is introduced
In the high pressure oil sump tank of annular on blade pump rotor 8, oil liquid is introduced into pin bottom oil groove 8c by runner later, thus
Always pin 7 is pushed out, then withstands blade 6 outward, makes the introversion face contact of the top of blade 6 stator always.
19 tail portion of fuel tank offers oil return opening 19a, can recycle the oil liquid that hydraulic system uses for utilizing again.
In above scheme, the integrated hydraulic power unit of the invention based on external rotor electric machine reduces shaft coupling, branch
The use of the components such as support reduces the weight and volume of device, when avoiding operating because shaft coupling connection hydraulic pump with
Vibration caused by motor decentraction；Outrigger shaft is not present in the present invention, avoids the use of axle envelope and resulting lets out
Dew；The present invention uses the pattern of outer-rotor permanent magnet motor, is more convenient to realize the control to motor speed.It is outer to turn under same volume
Sub-motor can export bigger torque, be more suitable and the integrated use of hydraulic pump；Blade pump rotor of the invention is directly integrated in
On the rotor of external rotor electric machine, other transmission mechanisms are eliminated, the structure of whole device is more compact；Electro-hydraulic pump of the invention is straight
It connects and has been mounted on fuel tank internal, no longer need additional piping connection between the two, avoid to wear because of piping connection position and send out
Raw leakage, improves reliability.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
In the description of the present invention, it is to be understood that, the orientation or positional relationship of the instructions such as term " on ", " one end " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " being equipped with " " connects
Connect " it shall be understood in a broad sense.It for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.Being fixedly connected can be the common techniques such as to weld, be threadedly coupled and step up
Scheme.For the ordinary skill in the art, can be understood with concrete condition above-mentioned term in the present invention specifically contain
Justice.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of integrated hydraulic power unit based on external rotor electric machine, which is characterized in that including fuel tank and be mounted on described
The electro-hydraulic pump of fuel tank internal, the electro-hydraulic pump includes external rotor electric machine, vane pump and electro-hydraulic pump case；
The electro-hydraulic pump case includes the drive end bearing bracket being successively linked in sequence, preceding oil distribution casing, blade pump stator, rear oil distribution casing, rear end
Lid；
The external rotor electric machine includes support shaft, the electric motor internal stator being arranged in support shaft and is arranged in the electric motor internal stator
The both ends of the motor outer rotor of periphery, the support shaft connect the drive end bearing bracket and rear end cap, the motor outer rotor branch
Support is in the inside of the drive end bearing bracket and the inside of rear end cap；
Between the preceding oil distribution casing and the rear oil distribution casing, the vane pump includes being mounted on the electricity for the vane pump setting
Blade pump rotor in the middle part of machine outer rotor outer surface and the blade pump stator that the blade pump rotor periphery is set, it is described
There is the cavity moved for blade radial between blade pump rotor and the blade pump stator；
It further include being embedded in permanent magnetic steel on the inside of the motor outer rotor.
2. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the motor
Outer rotor passes through fore bearing respectively and rear bearing is supported on the inside of the drive end bearing bracket and the inside of rear end cap.
3. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the blade
Pump rotor is radially provided with multiple rotor slots, and pin passes through the column pin hole between rotor trench bottom and pin bottom oil groove,
Blade is slidably placed in rotor slot.
4. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the motor
The outer surface of inner stator is equipped with epoxy resin, and the outer surface of the electric motor internal stator collectively forms smooth with the epoxy resin
Surface forms ring-shaped chamber between the smooth surface and the inner surface of the motor outer rotor.
5. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the motor
Outer rotor inner surface offers tile-type slot, the installation permanent magnetic steel in the tile-type slot.
6. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the support
The both ends of axis are fixedly connected with the drive end bearing bracket with the rear end cap respectively by flat key.
7. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the blade
Pump rotor and the motor outer rotor are interference fitted.
8. the integrated hydraulic power unit based on external rotor electric machine as described in claim 1, which is characterized in that the front end
Lid is connect by the flange of periphery with fuel tank using connection bolt.
9. the integrated hydraulic power unit based on external rotor electric machine as claimed in claim 2, which is characterized in that the front axle
It holds with the rear bearing using cages for needle component.
10. the integrated hydraulic power unit based on external rotor electric machine as claimed in claim 3, which is characterized in that described
It is equipped with high-voltage oil liquid runner inside drive end bearing bracket, a part of high-voltage oil liquid that waist type oil discharge outlet discharges from drive end bearing bracket is introduced
A power supply line extending port is offered in blade pump rotor in the oil groove of pin bottom, and on drive end bearing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542519.7A CN109681423B (en) | 2018-12-17 | 2018-12-17 | Integrated hydraulic power unit based on external rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811542519.7A CN109681423B (en) | 2018-12-17 | 2018-12-17 | Integrated hydraulic power unit based on external rotor motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681423A true CN109681423A (en) | 2019-04-26 |
| CN109681423B CN109681423B (en) | 2020-04-07 |
Family
ID=66187900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811542519.7A Active CN109681423B (en) | 2018-12-17 | 2018-12-17 | Integrated hydraulic power unit based on external rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681423B (en) |
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| CN110345069A (en) * | 2019-08-19 | 2019-10-18 | 成都灏弘科技有限公司 | A kind of motor and the integrated novel lobe pump of the pump housing |
| CN112283108A (en) * | 2020-10-30 | 2021-01-29 | 辽宁工程技术大学 | Outer rotor rotary vane vacuum pump directly driven by permanent magnet synchronous motor |
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| CN109681423B (en) | 2020-04-07 |
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