CN110005586A - A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives - Google Patents
A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives Download PDFInfo
- Publication number
- CN110005586A CN110005586A CN201910401596.9A CN201910401596A CN110005586A CN 110005586 A CN110005586 A CN 110005586A CN 201910401596 A CN201910401596 A CN 201910401596A CN 110005586 A CN110005586 A CN 110005586A
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- Prior art keywords
- plunger
- synchronous motor
- internal rotor
- pump
- magnetic synchronous
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 239000003921 oil Substances 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/26—Control
- F04B1/30—Control of machines or pumps with rotary cylinder blocks
- F04B1/32—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block
- F04B1/324—Control of machines or pumps with rotary cylinder blocks by varying the relative positions of a swash plate and a cylinder block by changing the inclination of the swash plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/08—Cooling; Heating; Preventing freezing
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The present invention provides a kind of cam-type axial piston pumps that internal rotor permanent-magnetic synchronous motor directly drives, including plunger pump pump case, the internal rotor permanent-magnetic synchronous motor being mounted on inside plunger pump pump case, plunger pump cylinder body is equipped at the rotor of the internal rotor permanent-magnetic synchronous motor, plunger hole is equipped in the plunger pump cylinder body, there is the plunger for making straight reciprocating motion in plunger hole in the plunger hole, one end of the motor shaft of the internal rotor permanent-magnetic synchronous motor is connected by the swash plate of spring return mechanism and stroking mechanism, valve plate is installed between the flow end face of plunger pump cylinder body and the suction pressure oil passage of plunger pump, for realizing the oil suction road of plunger pump, pressure oil road communicates.The present invention directly drives plunger pump cylinder body and plunger using internal rotor permanent-magnetic synchronous motor, save the transmission shaft of traditional cam-type axial piston pump, eliminate shaft coupling, shorten transmission chain, improve mechanical efficiency, and plunger pump volume reduces, structure is more compact, is a kind of efficient, energy-efficient driving method.
Description
Technical field
The present invention relates to the technical fields of hoisting machinery hydraulic system, more particularly to one kind to be used for hoisting machinery hydraulic system
The cam-type axial piston pump that directly drives of internal rotor permanent-magnetic synchronous motor.
Background technique
Hoisting machinery has the position that can not be substituted in the industrial production, as China is set on a large amount of bases in central and west regions
Construction is applied, the demand of hoisting machinery is increasingly increased, the fields such as road construction, residential housing, power construction are widely used in.
Requirement for hoisting machinery also develops towards the directions such as high efficiency, high-power, big bearing capacity.
Important component of the hydraulic system as hoisting machinery, is mainly responsible for power output task.In hydraulic system
In, plunger pump is even more highly important a part.Traditional cam-type axial piston pump cooperates shaft coupling using threephase asynchronous machine
It is connect with plunger pump drive shaft, driving motor and plunger pump are two independent parts, and due to asynchronous machine design feature, real
Border efficiency only has 65~70%, so system bulk is larger, transmission chain is longer, and dynamic response is slow, and energy saving is poor.
Compared with asynchronous machine, permanent magnet synchronous motor is more efficient, and compared to asynchronous machine, internal rotor permanent-magnetic is synchronous
Rotor part is without complicated winding or cage-shaped structure, and only Surface Mount permanent magnet, the more conducively straight drive of realization are oblique on rotor core surface
Disc type axial plunger pump, cylinder body and plunger can be directly arranged at internal rotor permanent-magnetic synchronous electric motor rotor iron core, final to realize
Electric machine built-in is in plunger pump.
Application No. is a kind of axial plunger pump of 201811208872.1 patent disclosure, which mainly includes
Cavity, bearing, cylinder body and oil circulation system realize lubrication by the way that lubrication oil circulation oil circuit is arranged in plunger pump housing
The flowing of oil in axial direction, so that the amount of heat that transmission shaft and bearing rotary generate is taken away by the flowing of lubricating oil, it is real
The purpose now to radiate.Although this method is able to achieve heat dissipation purpose, but since lubricant passage way is arranged in plunger pump housing, change
Plunger pump cylinder body structure, influences plunger pump real work performance unknown, while lubricant oil road structure is complicated, difficulty of processing
Greatly.
It is inclined disc type with tradition application No. is a kind of light energy-saving axial plunger pump of 200810157827.8 patent disclosure
Axial plunger pump is compared, which runs through the entire pump housing, and rotary shaft is direct-connected with transmission shaft, and swash plate is turned by rotary shaft
It is dynamic, the inclination angle of swash plate Yu oil distribution casing vertical center line is changed, to change output oil mass, compact-sized, flow is adjusted
It is easier.But the patent driving motor is threephase asynchronous machine, motor is connect by shaft coupling with plunger pump drive shaft,
Transmission chain is longer, and the efficiency of motor is lower.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide a kind of swash plates that internal rotor permanent-magnetic synchronous motor directly drives
Formula axial plunger pump changes conventional ADS driving mode and plunger pump structure, can be realized axial plunger pump and directly drive, reduce system body
Product, improves mechanical efficiency, energy conservation and environmental protection.
To achieve the above object, the present invention provides a kind of cam-type axial pistons that internal rotor permanent-magnetic synchronous motor directly drives
Pump, including plunger pump pump case, the internal rotor permanent-magnetic synchronous motor being mounted on inside the plunger pump pump case, the internal rotor permanent-magnetic
It is equipped with plunger pump cylinder body at the rotor of synchronous motor, plunger hole is equipped in the plunger pump cylinder body, is had in the plunger hole in column
Make the plunger of straight reciprocating motion in consent, for realizing the sucking and discharge of hydraulic oil；
One end of the motor shaft of the internal rotor permanent-magnetic synchronous motor passes through the swash plate of spring return mechanism and stroking mechanism
Connection, the swash plate are in contact by piston shoes with the plunger, and the swing of swash plate is realized by the stroking mechanism, change plunger
The discharge capacity and output flow of pump；
Valve plate is installed between the flow end face of the plunger pump cylinder body and the suction pressure oil passage of plunger pump, for realizing
Oil suction road, the pressure oil road of plunger pump communicate.
Preferably, the stroking mechanism include valve rod, the variable piston that is connected by spool control valve with the valve rod, institute
It states swash plate to be hinged on the variable piston by flexural pivot, by the opposite position for changing the spool control valve and variable piston
It sets, realizes the angle change of swash plate.
Preferably, the spring return mechanism includes the cylinder spiral shell being mounted in the motor shaft of internal rotor permanent-magnetic synchronous motor
Rotation compressed spring, the steel ball being connect with the cylindroid helical-coil compression spring, the return plate being connect with the steel ball, the return plate
It is connect by the piston shoes with the plunger, the head of the plunger is embedded in the ball-and-socket of piston shoes.
Further, the internal rotor permanent-magnetic synchronous motor include stator core, stator slot, stator winding, permanent magnet and
Rotor core, the stator slot are provided at the stator core, and the stator slot is embedded with stator winding, the permanent magnet patch
In the surface of the rotor core.
Optionally, circular channel there are two opening on the valve plate, communicates with the oil suction road of plunger pump, pressure oil road respectively.
Further, the other end of the motor shaft of the internal rotor permanent-magnetic synchronous motor is connected with plunger pump by bearing
Front cover, the plunger pump front cover are connect by hexagon socket cap head screw with the plunger pump shell phase.
By upper, the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor of the invention directly drives at least has following beneficial
Effect:
(1) traditional cam-type axial piston pump driving motor uses threephase asynchronous machine, and motor passes through shaft coupling and plunger
The transmission shaft of pump is connected, and asynchronous machine efficiency is inefficient generally 65~70%.Plunger pump and motor are mutually indepedent, body
Product is larger, and transmission chain is longer, and mechanical efficiency is lower.Internal rotor permanent-magnetic synchronous motor of the invention is more compared with asynchronous machine by efficiency
Height, motor are embedded in Plunger pump body, and the two is combined into one, reduces energy loss, improve mechanical efficiency, simultaneity factor volume
Reduce, structure is more compact.
(2) plunger of the invention is evenly arranged at internal rotor permanent-magnetic synchronous electric motor rotor iron core, when plunger pump work,
By the sucking and discharge of hydraulic oil in plunger hole can take away at motor, motor shaft and bearing due to high-speed cruising generate it is big
Calorimetric amount plays apparent heat dissipation effect, eliminates the design of cooling system, simplifies structure, reduces difficulty of processing.
Detailed description of the invention
Fig. 1 is the structure for the cam-type axial piston pump that the internal rotor permanent-magnetic synchronous motor of the preferred embodiment of the present invention directly drives
Schematic diagram；
Fig. 2 is the Section A-A figure in Fig. 1；
Fig. 3 is the entirety for the cam-type axial piston pump that the internal rotor permanent-magnetic synchronous motor of the preferred embodiment of the present invention directly drives
Schematic diagram；
Fig. 4 is that the internal rotor permanent-magnetic for the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor of the invention directly drives is synchronous
The structural schematic diagram of motor；
Fig. 5 is the partial schematic diagram of Fig. 4；
Fig. 6 is the knot of the plunger pump cylinder body for the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor of the invention directly drives
Structure schematic diagram；
Fig. 7 is that the internal rotor permanent-magnetic for the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor of the invention directly drives is synchronous
The structural schematic diagram of the motor shaft of motor.
In figure, 1- plunger pump front cover, 2- plunger pump pump case, 3- stator core, 4- stator slot, 5- cylindrical screw compress bullet
Spring, 6- swash plate, 7- valve rod, 8- stroking mechanism, 9- variable piston, 10- flexural pivot, 11- piston shoes, 12- plunger, 13- plunger pump
Cylinder body, 14- permanent magnet, 15- plunger hole, 16- valve plate, the motor shaft of 17- internal rotor permanent-magnetic synchronous motor, 18- bearing, 19-
Motor gas-gap.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
It is straight to the internal rotor permanent-magnetic synchronous motor for crane tool hydraulic system of the invention referring to Figure 1 to Figure 7
The cam-type axial piston pump of drive is described in detail.Internal rotor permanent-magnetic of the present invention for crane tool hydraulic system is same
The cam-type axial piston pump of step electric-machine directly-driven mainly solves between traditional cam-type axial piston pump driving motor and plunger pump
Independently of each other, the problems such as threephase asynchronous machine efficiency is lower, by the way that permanent magnet synchronous motor is embedded in plunges pump body, plunger and
Plunger pump cylinder body is arranged at the rotor core of permanent magnet synchronous motor, eliminates transmission shaft and shaft coupling, shortens transmission chain, is mentioned
High mechanical efficiency.
The cam-type axial piston pump that the present invention directly drives for the internal rotor permanent-magnetic synchronous motor of hoisting machinery hydraulic system,
Main includes the motor shaft 17 and column of plunger pump pump case 2, internal rotor permanent-magnetic synchronous motor, swash plate 6, internal rotor permanent-magnetic synchronous motor
Pump cylinder 13 is filled in, motor shaft 17 of the plunger pump cylinder body 13 together with plunger 12 around internal rotor permanent-magnetic synchronous motor rotates, same in permanent magnetism
It walks and is equipped with the plunger pump cylinder body 13 at the rotor of motor, be equipped with plunger hole 15 in plunger pump cylinder body 13, in the plunger hole 15
Equipped with plunger 12, when plunger pump cylinder body 13 drives plunger 12 to rotate, plunger 12 makees straight reciprocating motion in plunger hole 15, real
The sucking and discharge of existing hydraulic oil.
Plunger pump front cover 1 is connected by hexagon socket cap head screw with plunger pump pump case 2, and internal rotor permanent-magnetic synchronizes electricity
Machine is embedded in pump body, and internal rotor permanent-magnetic synchronous motor mainly includes stator core 3, stator slot 4, stator winding, motor gas
Gap 19, permanent magnet 14, rotor core and motor shaft 17.Stator slot 4 is provided at stator core 3, in stator slot 4 embed stator around
Group, permanent magnet 14 are affixed on the surface of rotor core.Cylindrical screw is equipped in the motor shaft 17 of internal rotor permanent-magnetic synchronous motor to compress
Spring 5, cylindroid helical-coil compression spring 5 are connect with steel ball, and steel ball is connect with return plate, and return plate is connected by piston shoes 11 and plunger 12
It connects, return plate, piston shoes 11, plunger 12 rotate together.
The right end of the motor shaft 17 of internal rotor permanent-magnetic synchronous motor is by the cylindroid helical-coil compression spring 5, steel ball and returns
Journey disk is connect with the swash plate 6 of stroking mechanism 8, and stroking mechanism 8 is mainly living including spool control valve, flexural pivot 10, swash plate 6, variable
Plug 9 and valve rod 7.Valve rod 7 is connected by being connected thereto the spool control valve in portion with variable piston 9, and plunger 12 is mounted on plunger pump
In cylinder body 13 in equally distributed plunger hole 15, the head of plunger 12 is connected with piston shoes 11, and swash plate 6 is cut with scissors by flexural pivot 10
It connects on the variable piston 9.The cylindroid helical-coil compression spring 5, steel ball and return plate constitute spring return mechanism.
Valve plate 16 in the present invention be mounted on plunger pump cylinder body 13 flow end face and plunger pump suction pressure oil passage it
Between, it is opened on valve plate 16 there are two circular channel, is communicated respectively with the suction pressure oil circuit of plunger pump, internal rotor permanent-magnetic synchronous motor
The left end of motor shaft 17 is fixed at bearing 18, and right end is connected by the spring return mechanism with swash plate 6.
In the following, referring to Fig.1~Fig. 7 and combination above structure description, directly drive internal rotor permanent-magnetic synchronous motor of the invention
The working principle of cam-type axial piston pump be briefly described:
After internal rotor permanent-magnetic synchronous motor is powered on, rotor begins around the rotation of motor shaft 17, passes through motor
The rotation of rotor drives the plunger 12 being evenly arranged at motor rotor core to rotate, and the head of plunger 12 is equipped with piston shoes 11,
Due to the effect of return mechanism, the bottom of piston shoes 11 is forced to be close to the apparent motion of swash plate 6 always, and the surface of swash plate 6 and cylinder
There is an inclination angle between body plane, so plunger 12 is done in plunger hole 15 when plunger pump cylinder body 13 drives plunger 12 to rotate
Linear reciprocating motion is inhaled, the valve plate 16 between pressure oil passage by being mounted on cylinder body flow end face and plunger pump, realizes plunger
Oil suction road, the pressure oil road of pump communicate, final to realize oil inlet and oil extraction.
When changing plunger pumpage and output flow, the knob of regulated variable mechanism 8, by changing spool control valve and change
The relative position of piston 9 is measured, realizes the swing of swash plate 6, when the angle change of swash plate 6, the discharge capacity and output flow of plunger pump
Corresponding change is followed, realizes and adjusts flow purpose.Plunger 12 and plunger pump cylinder body 13 pass through the stream of hydraulic oil in rotary course
It is dynamic to take away the heat generated in motor operation course, realize motor radiating.Internal rotor permanent-magnetic synchronous motor is built in by the present invention
Inside cam-type axial piston pump, plunger pump cylinder body 13 and plunger 12 are directly driven using internal rotor permanent-magnetic synchronous motor, saved
The transmission shaft for removing traditional cam-type axial piston pump, eliminates shaft coupling, shortens transmission chain, improves mechanical efficiency, and column
It fills in pump volume to reduce, structure is more compact, is a kind of efficient, energy-efficient driving method.The present invention changes traditional driving side
Formula and plunger pump structure, it is compact-sized, it is more efficient, it is suitble to further production to promote.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives, including plunger pump pump case (2), it is mounted on institute
State the internal internal rotor permanent-magnetic synchronous motor of plunger pump pump case (2), it is characterised in that:
Plunger pump cylinder body (13) are equipped at the rotor of the internal rotor permanent-magnetic synchronous motor, column is equipped in the plunger pump cylinder body (13)
Consent (15), the plunger hole (15) is interior to have the plunger (12) for making straight reciprocating motion in plunger hole (15), for realizing
The sucking and discharge of hydraulic oil；
One end of the motor shaft (17) of the internal rotor permanent-magnetic synchronous motor is oblique by spring return mechanism and stroking mechanism (8)
Disk (6) connection, the swash plate (6) are in contact by piston shoes (11) with the plunger (12), are realized by the stroking mechanism (8)
The swing of swash plate (6) changes the discharge capacity and output flow of plunger pump；
Valve plate (16) are installed between the flow end face of the plunger pump cylinder body (13) and the suction pressure oil passage of plunger pump, are used for
Realize that oil suction road, the pressure oil road of plunger pump communicate.
2. the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor according to claim 1 directly drives, which is characterized in that
The stroking mechanism (8) includes valve rod (7), passes through the variable piston (9) that spool control valve is connected with the valve rod (7), described
Swash plate (6) is hinged on the variable piston (9) by flexural pivot (10), by changing the spool control valve and variable piston
(9) angle change of swash plate (6) is realized in relative position.
3. the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor according to claim 1 directly drives, which is characterized in that
The spring return mechanism includes the cylindroid helical-coil compression spring being mounted in the motor shaft (17) of internal rotor permanent-magnetic synchronous motor
(5), the steel ball connecting with the cylindroid helical-coil compression spring (5), the return plate connecting with the steel ball, the return plate pass through
The piston shoes (11) connect with the plunger (12), and the head of the plunger (12) is embedded in the ball-and-socket of piston shoes (11).
4. the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor according to claim 1 directly drives, which is characterized in that
The internal rotor permanent-magnetic synchronous motor includes stator core (3), stator slot (4), stator winding, permanent magnet (14) and rotor iron
Core, the stator slot (4) are provided at the stator core (3), and the stator slot (4) is embedded with stator winding, the permanent magnetism
Iron (14) is affixed on the surface of the rotor core.
5. the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor according to claim 1 directly drives, which is characterized in that
Circular channel there are two opening on the valve plate (16), communicates with the oil suction road of plunger pump, pressure oil road respectively.
6. the cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor according to claim 1 directly drives, which is characterized in that
The other end of the motor shaft (17) of the internal rotor permanent-magnetic synchronous motor is connected with plunger pump front cover (1) by bearing (18),
The plunger pump front cover (1) is connected by hexagon socket cap head screw with the plunger pump pump case (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910401596.9A CN110005586A (en) | 2019-05-14 | 2019-05-14 | A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910401596.9A CN110005586A (en) | 2019-05-14 | 2019-05-14 | A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110005586A true CN110005586A (en) | 2019-07-12 |
Family
ID=67176936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910401596.9A Pending CN110005586A (en) | 2019-05-14 | 2019-05-14 | A kind of cam-type axial piston pump that internal rotor permanent-magnetic synchronous motor directly drives |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005586A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439777A (en) * | 2019-08-12 | 2019-11-12 | 山东科技大学 | A kind of hydraulic engine plunger pump by load control hydraulic displacement |
| CN111365208A (en) * | 2020-04-01 | 2020-07-03 | 辽宁工程技术大学 | Permanent magnet synchronous motor directly-driven oblique shaft type axial plunger pump |
| CN112177875A (en) * | 2020-09-29 | 2021-01-05 | 太原科技大学 | Swash plate driving flow distribution integrated variable displacement plunger pump |
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