CN107448381B - Power device - Google Patents
Power device Download PDFInfo
- Publication number
- CN107448381B CN107448381B CN201710758306.7A CN201710758306A CN107448381B CN 107448381 B CN107448381 B CN 107448381B CN 201710758306 A CN201710758306 A CN 201710758306A CN 107448381 B CN107448381 B CN 107448381B
- Authority
- CN
- China
- Prior art keywords
- rotor
- guide channel
- oil guide
- plugging block
- pump
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- F04C2/356—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 outer member
- F04C2/3566—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 outer member the inner and outer member being in contact along more than one line or surface
-
- 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
- F04C2240/00—Components
- F04C2240/20—Rotors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of power devices, including pump, pump includes the pump housing, rotor is provided in the pump housing, the major diameter direction both ends of rotor are respectively arranged with the Oil Guide channel of multiple connection rotor circumferential direction two sides, each Oil Guide channel at every end is along rotor axial arranged for interval, compartment between two neighboring Oil Guide channel in rotor the same end is used to cooperate with membrane support, also along major diameter direction, guiding movement is equipped with plugging block in rotor, plugging block has in its shift motion gets out of the way the first position in the Oil Guide channel and moves and block the second position in the Oil Guide channel outwardly under the action of the centrifugal force, the spring for applying active force to the plugging block and plugging block being forced to be in first position is provided on rotor.The present invention provides the power devices that one kind can reduce electric motor starting load.
Description
Technical field
The present invention relates to a kind of power devices.
Background technique
Hydraulic power mainly includes motor and pump motor-driven, wherein pumping as a kind of common power device
Performance directly decide the performance of power device.Existing pump " pump " as disclosed in Chinese patent CN101749228A, the pump
Including pedestal, the pump housing is provided on pedestal, the pump housing has cylindrical hole inner cavity, is provided with pivot center along front and back in cylindrical hole inner cavity
The rotor that direction extends, there are two point of contacts for the section and cylindrical hole inner cavity of rotor.The periphery of the pump housing is provided with hole, is oriented to and moves at hole
Dynamic to be equipped with baffle, which is divided into inlet and liquid outlet by baffle, and rotor is cylinder, and one end and rotor outer periphery face of partition are sliding
Dynamic pushing tow cooperation.
In use, rotor clockwise rotates, the cavity of rotor two sides communicates with inlet and liquid outlet respectively, wherein with into
The cavity that liquid mouth communicates is low pressure chamber, and the cavity communicated with liquid outlet is high pressure chest, and partition cooperates with rotor sliding pushing tow always
Guarantee that low pressure chamber and high pressure chest are obstructed, during rotation, hydraulic oil is inhaled into low pressure chamber through oil inlet to rotor, with rotor
Rotation is squeezed and is discharged through oil outlet, realizes pump oil.Existing this pump has problems in that: rotor is driven by a motor and turns
It is dynamic, for corresponding motor, the larger not only power consumption of starting load but also also larger to the loss of motor, and in the prior art, motor
Also hydraulic oil is filled with when starting in low pressure chamber, to complete to do work to hydraulic oil could complete the starting of motor, this is increased by
The starting load of motor, lowest power when not only resulting in choice of electrical machine increased, and also will affect the normal energy consumption of motor.
Summary of the invention
The purpose of the present invention is to provide the power devices that one kind can reduce electric motor starting load.
In order to solve the above technical problems, technical scheme is as follows:
Power device, including pump, pump includes the pump housing with cylindrical hole inner cavity, and pivot center is provided in the pump housing along front and back
Direction extends, cross section is elliptoid rotor, the cross section of rotor and bore tool there are two point of contact, is arranged on the pump housing
There are inlet opening and fluid hole, separated between inlet opening, fluid hole by partition, one end and the rotor outer periphery face sliding pushing tow of partition are matched
It closes, the major diameter direction both ends of rotor are respectively arranged with the Oil Guide channel of multiple connection rotor circumferential direction two sides, and each Oil Guide at every end is logical
Road is along rotor axial arranged for interval, and the compartment between the two neighboring Oil Guide channel in rotor the same end is used for and partition
Support cooperates, and also along major diameter direction, guiding movement is equipped with plugging block in rotor, and plugging block has in its shift motion gets out of the way
The first position in the Oil Guide channel and the second position for moving and blocking the Oil Guide channel outwardly under the action of the centrifugal force turn
The spring for applying active force to the plugging block and plugging block being forced to be in first position is provided on son.
The spring is the pressure spring being set on the outside of plugging block.
The longitudinal section in Oil Guide channel be arc-shaped structure, the center of circle of arc-shaped structure be in two ends of rotor Oil Guide channel it
Between.
The invention has the benefit that being acted on when rotor does not rotate in the present invention by spring, plugging block is in first
It sets, the circumferential two sides of Oil Guide channel connection rotor, when rotor ground zero, since revolving speed is also relatively slow, centrifugal force is not enough to gram
Take the active force of spring, therefore Oil Guide channel is still connected, the oil pressure of rotor circumferential direction two sides is consistent, therefore the starting of rotor is negative
Load is smaller, and when the speed of rotor reaches certain value, the centrifugal force of plugging block overcomes the active force of spring, and plugging block moves outwardly
To the second position, Oil Guide channel is blocked, to realize normal fuel feeding, the compartment between two neighboring Oil Guide channel is used
Cooperate in membrane support, to avoid partition clamping stagnation in Oil Guide channel, it is ensured that the regular event of partition and rotor.
Detailed description of the invention
Fig. 1 is status diagram when pumping inactive in power device embodiment of the present invention；
Fig. 2 is the status diagram in power device embodiment of the present invention after pump startup；
Fig. 3 is the top view of rotor in Fig. 1；
Fig. 4 is enlarged drawing at A in Fig. 2；
Fig. 5 is the cooperation schematic diagram of brake device for electrical machinery and motor shaft in power device embodiment of the present invention；
Fig. 6 is the cooperation schematic diagram of motor shaft and bearing block in power device embodiment of the present invention；
Fig. 7 is the structural schematic diagram that spanner is adjusted in power device embodiment of the present invention；
Fig. 8 is the side view of Fig. 7；
Fig. 9 is the cooperation schematic diagram of electric machine casing and the pump housing in power device embodiment of the present invention.
Specific embodiment
The implementation of power device is for example shown in Fig. 1 ~ 9 in the present invention: including motor 37 and pump 36, pump 36 includes having cylindricality
The pump housing 2 of hole inner cavity, it is elliptoid rotor 5 that pivot center extends along the longitudinal direction, cross section is provided in the pump housing 2, is turned
The cross section of son 5 and bore tool are provided with hole on the pump housing, guiding movement is equipped with one end and rotor at hole there are two point of contact
The partition 9 for being used to for being separated into hole inlet 8, liquid outlet 1 of outer peripheral surface sliding pushing tow cooperation, cylindrical hole inner cavity is also by partition 9
It is separated into the high pressure chest 3 with the low pressure chamber 11 of 8 connection of inlet and with 1 connection of liquid outlet, the major diameter direction both ends setting of rotor
There is the Oil Guide channel 7 of connection rotor circumferential direction two sides, the longitudinal section in Oil Guide channel 7 is arc-shaped structure, the center of circle of arc-shaped structure
Between the Oil Guide channel of two sides, every side Oil Guide channel have it is multiple, each Oil Guide channel of each side along rotor axial arranged for interval,
Compartment 71 between each Oil Guide channel of every side can play the role of supporting clapboard 9 to avoid partition board stagnant to leading
In oily channel.The both ends of rotor are additionally provided with the pilot hole that guide direction extends along the major diameter direction of rotor, two pilot holes
In be individually directed movement be equipped with plugging block 4, each plugging block 4 is corresponding with corresponding Oil Guide channel 7 respectively, Oil Guide channel
For the linear type channel perpendicular with plugging block moving direction, plugging block has in its shift motion gets out of the way corresponding Oil Guide channel
7 first position and the second position for moving and blocking corresponding Oil Guide channel 7 outwardly under the action of the centrifugal force are arranged on rotor 5
There is the spring for forcing plugging block to be in first position for applying active force to corresponding plugging block corresponding with each plugging block,
Spring is the pressure spring 6 being set on the outside of plugging block in the present embodiment, and the outside end of plugging block is provided with plugging block end tooth 72, is turned
The rotor end tooth 73 for being adapted to interfix with plugging block end tooth is provided on son, after plugging block end tooth 72 and 73 interfix of rotor end tooth
Labyrinth seal is formed, can be guaranteed in rotor During regular rotation in this way, the excellent sealing in Oil Guide channel, while also being formed to envelope
The both ends of sprue 4 support, and guarantee the anti-pressure ability of plugging block 4, guarantee the service life that plugging block works under high oil pressure.In electricity
It when machine is inactive, is acted on by pressure spring 6, each plugging block is in the first position for getting out of the way corresponding Oil Guide channel as shown in Figure 1, motor exists
In incipient start-up course, rotor speed is smaller, and the centrifugal force of plugging block is not enough to overcome the active force of pressure spring, therefore Oil Guide
Channel is always to be connected, and the pressure of rotor circumferential direction two sides is identical, and the resistance that rotor motion is subject to is just smaller, be may be implemented low negative
Starting is carried, low-power machine can realize the load starting of rotor, after rotor speed reaches certain speed, such as motor
After revolving speed reaches 1000r/min, the centrifugal force of rotor overcomes the elastic force of pressure spring, and plugging block is displaced outwardly and seals Oil Guide channel
It is stifled, it pumps and normal fuel injection can be achieved.In actual use, it can select suitable spring according to requirements or adjust the pre- of spring
Normal fuel injection may be implemented to adjust motor in what revolving speed in tight amount.
Motor includes the electric machine casing 12 connecting with the pump housing, arranges before and after electric machine casing 12, the pump housing 2, sets in electric machine casing
It is equipped with the motor shaft 18 that pivot center extends along the longitudinal direction, dynamic sealing mechanism 30 is provided between motor shaft 18 and the pump housing 2, electricity
The front side of dynamic sealing mechanism 30 is provided with drain nut 32 on arbor 18, is evenly distributed on the outer edge of drain nut 32
There are multiple notches 33.Annular groove 34 corresponding with drain nut 32 is provided on electric machine casing, annular groove 34 is in dynamic
The front side of sealing mechanism, the bottom of annular groove 34 are provided with drainage hole 35, and the upper end of electric machine casing is provided with air inlet 31, into
Stomata 31 is in the front side of dynamic sealing mechanism 30, and breather cheek valve is provided at air inlet 31, and gas can enter through the external world, but
It is that internal liquid cannot be discharged through breather cheek valve.The liquid sucting port 10 with high pressure chest connection, liquid sucting port are provided on the pump housing
Liquid non-return valve is provided at 10, liquid can enter the pump housing through liquid sucting port, but cannot be discharged through liquid sucting port, liquid sucting port 10
It is connect with drainage hole 35 by hose.In normal use, dynamic sealing mechanism may fail power assembly, at this time the liquid in pump
Pressure oil can be through flow direction motor between dynamic sealing mechanism and motor shaft, after hydraulic oil flows on drain nut 32,32 quilt of hydraulic oil
Get rid of into annular groove 34, and annular groove 34 then through drainage hole 35, liquid sucting port 10 and pump low pressure chamber be connected, leakage it is hydraulic
Oil can be drawn into low pressure chamber again, participate in the pump oil of next stage.
Motor further includes the brake device for electrical machinery for braking to motor shaft, and brake device for electrical machinery includes multiple along week
To spaced apart brake units 13, each brake units 13 include can be along the brake shoes of motor shaft radial floating by spring
16, brake units further include the fixation steel disc 14 being oppositely arranged with brake shoes, and system is provided between brake shoes 16 and electric machine casing
It moves spring 15, electromagnetic coil is provided in brake shoes 16, electromagnetic coil is electrically connected with the supply lines of motor.Figure middle term 17 indicates bullet
Spring guide cylinder, in motor normal power supply, electromagnetic coil, which is powered, generates magnetic force and attracting with fixed steel disc 14, overcomes braking with this
Acting force of the spring, brake shoes are not contacted with motor shaft, when motor power-off, by the effect of tripping spring, each brake shoes with electricity
Arbor contacts and realizes friction catch.Entire brake units are arranged on fixed electric machine casing, rather than are arranged in electricity
On arbor, when motor shaft normal rotation, does not need to expend more loads, facilitates energy conservation, while becoming to solenoid yet
It must be more easier, whole device is easy to accomplish, and is not easy to break down.
General bearing block is provided in the end of electric machine casing, general bearing block is adapted to the electricity of plurality of specifications size
Arbor, basic structure are as follows: bearing block includes frame-shaped body 21, and the clamping list of a pair of opposing is provided on frame-shaped body
Member, two clamping units are referred to as clamping unit 20 and lower clamping unit 19, and each clamping unit includes and frame shape sheet
The screw rod 23 that body is threadedly coupled, the screw flight of upper and lower clamping unit is oppositely oriented and is coaxially set, and the inner end of screw rod is set
It is equipped with grip block 24, screw rod can be rotated relative to grip block, gripped between two grip blocks for matching with motor shaft 18
The bearing 25 of conjunction.The upper end of the screw rod of upper clamping unit is provided with the upper vertical bar jack 22 axially vertical with screw rod, lower bearing list
The lower end of the screw rod of member is provided with the lower vertical bar jack 50 axially vertical with screw rod, and upper and lower vertical bar jack respectively constitutes two spiral shells
The torque input structure of bar.Bearing block further includes the adjustment spanner for adjusting distance between the grip block of upper and lower clamping unit,
Adjust spanner as seen in figs. 5-6 comprising cross bar 27 and two can be along the vertical bar 26 of 27 extending direction guiding movement of cross bar, vertical bars
26 are slidably matched by the T shape end 28 of its end and the guiding of T-slot 29 on cross bar 27, in use, two vertical bars 26 of adjustment
Position, two vertical bars are respectively inserted in the correspondence vertical bar jack of upper and lower clamping unit, then move cross bar around the axis of screw rod
Line rotation, cross bar drive two vertical bars to swing, to drive each screw rod to rotate, to realize the grip block of upper and lower clamping unit
Relative movement adjustment is moved away from adjustment, and to match the bearing of different-diameter, which is had the beneficial effect that, two spiral shells
The rotational angle of bar is consistent, therefore the moving distance of the grip block of upper and lower clamping unit is consistent, this is ensured that
No matter how general bearing block adjusts, and can guarantee that the center of bearing is constant, prevents motor axis deviation and causes bearing
Abrasion is very fast.In other embodiments of the invention, adjustment spanner can also not as bearing block technical solution a part, than
Such as say in addition adjustment spanner can be sold separately；Torque input structure on screw rod is also possible to flat head structure, at this time can be
Driving groove with the cooperation of flat head structure rotation stop is set on vertical bar.
Claims (3)
1. power device, including pump, pump includes the pump housing with cylindrical hole inner cavity, and pivot center is provided in the pump housing along front and back
To extension, cross section be elliptoid rotor, the cross section of rotor and cylindrical hole inner cavity tool there are two point of contact, be arranged on the pump housing
There are inlet opening and fluid hole, separated between inlet opening, fluid hole by partition, one end and the rotor outer periphery face sliding pushing tow of partition are matched
It closes, it is characterised in that: the major diameter direction both ends of rotor are respectively arranged with the Oil Guide channel of multiple connection rotor circumferential direction two sides, every end
Compartment of each Oil Guide channel along rotor axial arranged for interval, between the two neighboring Oil Guide channel in rotor the same end
For cooperating with membrane support, also along major diameter direction, guiding movement is equipped with plugging block in rotor, and plugging block is in its shift motion
It is interior that there is the first position for getting out of the way the Oil Guide channel and move outwardly under the action of the centrifugal force and block the Oil Guide channel
The second position is provided with the spring for applying active force to the plugging block and plugging block being forced to be in first position on rotor.
2. power device according to claim 1, it is characterised in that: the spring is the pressure being set on the outside of plugging block
Spring.
3. power device according to claim 1, it is characterised in that: the longitudinal section in Oil Guide channel is arc-shaped structure, circle
The center of circle of arcuate structure is between two ends of rotor Oil Guide channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710758306.7A CN107448381B (en) | 2017-08-29 | 2017-08-29 | Power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710758306.7A CN107448381B (en) | 2017-08-29 | 2017-08-29 | Power device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107448381A CN107448381A (en) | 2017-12-08 |
| CN107448381B true CN107448381B (en) | 2019-01-29 |
Family
ID=60494519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710758306.7A Expired - Fee Related CN107448381B (en) | 2017-08-29 | 2017-08-29 | Power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107448381B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108642736A (en) * | 2018-07-26 | 2018-10-12 | 吴江市震宇缝制设备有限公司 | A kind of use in sewing machine spool |
| CN110397484B (en) * | 2019-07-26 | 2020-08-11 | 杭州电子科技大学 | Variable-displacement inner rotor oil pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005226607A (en) * | 2004-02-16 | 2005-08-25 | Shinkikai Giken:Kk | Vane pump |
| CN101749228A (en) * | 2008-12-15 | 2010-06-23 | 陈双利 | Pump |
| CN103016337A (en) * | 2011-09-28 | 2013-04-03 | 秦永 | Pump |
| WO2013162427A1 (en) * | 2012-04-26 | 2013-10-31 | Закрытое Акционерное Общество "Новомет-Пермь" (Зао "Новомет-Пермь") | Multi-stage vane pump |
-
2017
- 2017-08-29 CN CN201710758306.7A patent/CN107448381B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005226607A (en) * | 2004-02-16 | 2005-08-25 | Shinkikai Giken:Kk | Vane pump |
| CN101749228A (en) * | 2008-12-15 | 2010-06-23 | 陈双利 | Pump |
| CN103016337A (en) * | 2011-09-28 | 2013-04-03 | 秦永 | Pump |
| WO2013162427A1 (en) * | 2012-04-26 | 2013-10-31 | Закрытое Акционерное Общество "Новомет-Пермь" (Зао "Новомет-Пермь") | Multi-stage vane pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107448381A (en) | 2017-12-08 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 Termination date: 20190829 |
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| CF01 | Termination of patent right due to non-payment of annual fee |