CN107327401B - Pump and the hydraulic power assembly for using the pump - Google Patents
Pump and the hydraulic power assembly for using the pump Download PDFInfo
- Publication number
- CN107327401B CN107327401B CN201710751846.2A CN201710751846A CN107327401B CN 107327401 B CN107327401 B CN 107327401B CN 201710751846 A CN201710751846 A CN 201710751846A CN 107327401 B CN107327401 B CN 107327401B
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- China
- Prior art keywords
- rotor
- pump
- plugging block
- guide channel
- oil guide
- 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.)
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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
- F04C2/3562—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 one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3564—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 one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention relates to a kind of pump and use the hydraulic power assembly of the pump, pump includes the pump housing with cylindrical hole inner cavity, rotor is provided in the pump housing, there are two point of contacts for the cross section of rotor and bore tool, inlet opening and fluid hole are provided on the pump housing, inlet opening, it is separated between fluid hole by partition, one end of partition and rotor outer periphery face sliding pushing tow cooperation, the major diameter direction both ends of rotor are provided with the Oil Guide channel of connection rotor circumferential direction two sides, 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 pumps that one kind can reduce starting load.
Description
Technical field
The present invention relates to a kind of pump and use the hydraulic power assembly of the pump.
Background technique
Currently, hydraulic power assembly is relatively conventional in production, life, hydraulic power assembly includes motor and by motor
The pump of drive, existing pump " pump " as disclosed in Chinese patent CN101749228A, which includes pedestal, and pump is provided on pedestal
Body, the pump housing have cylindrical hole inner cavity, and the rotor that pivot center extends along the longitudinal direction is provided in cylindrical hole inner cavity, and rotor is cut
There are two point of contacts for face and cylindrical hole inner cavity.The periphery of the pump housing is provided with hole, and guiding movement is equipped with baffle at hole, and baffle is by the hole
It is divided into inlet and liquid outlet, rotor is cylinder, one end of partition and rotor outer periphery face sliding 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 pumps that one kind can reduce starting load；The object of the invention is also to provide one
Kind uses the hydraulic power assembly of the pump.
In order to solve the above technical problems, the technical solution of hydraulic power assembly is as follows in the present invention:
Hydraulic power assembly, including motor and the pump being driven by motor, pump includes the pump housing with cylindrical hole inner cavity, pump
Pivot center extends along the longitudinal direction, cross section is provided in body for elliptoid rotor, in the cross section and cylindricality of rotor
Hole tool is provided with inlet opening and fluid hole on the pump housing, is separated between inlet opening, fluid hole by partition there are two point of contact, partition
One end and rotor outer periphery face sliding pushing tow cooperation, the Oil Guide that the major diameter direction both ends of rotor are provided with connection rotor circumferential direction two sides are logical
Road, 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 described lead
The first position in oily channel and the second position for moving and blocking the Oil Guide channel outwardly under the action of the centrifugal force are set on rotor
It is equipped with the spring for applying active force to the plugging block and plugging block being forced to be in first position.
The spring is the pressure spring being set on the outside of plugging block.
The technical solution pumped in the present invention are as follows:
Pump, including the pump housing with cylindrical hole inner cavity, is provided with that pivot center extends along the longitudinal direction, transversal in the pump housing
Face is elliptoid rotor, the cross section of rotor and bore tool there are two point of contact, is provided with inlet opening and out liquid on the pump housing
Hole is separated between inlet opening, fluid hole by partition, one end of partition and rotor outer periphery face sliding pushing tow cooperation, the major diameter of rotor
Direction both ends are provided with the Oil Guide channel of connection rotor circumferential direction two sides, and also along major diameter direction, guiding movement is equipped with closure in rotor
Block, plugging block have the first position for getting out of the way the Oil Guide channel in its shift motion and move outwardly under the action of the centrifugal force
And the second position in the Oil Guide channel is blocked, it is provided on rotor to the plugging block and applies active force and force at plugging block
Spring in first position.
The spring is the pressure spring being set on the outside of plugging block.
The invention has the benefit that, when rotor does not rotate, being acted on by spring in the present invention, plugging block is in first
Position, 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
Overcome 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
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 is moved outwardly
It moves to the second position, Oil Guide channel is blocked, to realize normal fuel feeding.
Detailed description of the invention
Fig. 1 is status diagram when pumping inactive in hydraulic power assembly embodiment of the present invention；
Fig. 2 is the status diagram in hydraulic power assembly embodiment of the present invention after pump startup；
Fig. 3 is the cooperation schematic diagram of brake device for electrical machinery and motor shaft in hydraulic power assembly embodiment of the present invention；
Fig. 4 is the cooperation schematic diagram of motor shaft and bearing block in hydraulic power assembly embodiment of the present invention；
Fig. 5 is the structural schematic diagram that spanner is adjusted in hydraulic power assembly embodiment of the present invention；
Fig. 6 is the side view of Fig. 5；
Fig. 7 is the cooperation schematic diagram of electric machine casing and the pump housing in hydraulic power assembly embodiment of the present invention.
Specific embodiment
The implementation of hydraulic power assembly is for example shown in Fig. 1 ~ 7: including motor 37 and pump 36, pump 36 includes having in cylindrical hole
The pump housing 2 of chamber, it is elliptoid rotor 5 that pivot center extends along the longitudinal direction, cross section is provided in the pump housing 2, rotor 5
Cross section and bore tool are provided with hole on the pump housing, guiding movement is equipped with one end and rotor outer periphery 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 face sliding pushing tow cooperation, cylindrical hole inner cavity is also separated by partition 9
At the low pressure chamber 11 with 8 connection of inlet and the high pressure chest 3 with 1 connection of liquid outlet, the major diameter direction both ends of rotor are provided with connection
The Oil Guide channel 7 of logical rotor circumferential direction two sides, the major diameter direction for extending perpendicularly to rotor 5 in Oil Guide channel.The both ends of rotor
It is additionally provided with the pilot hole that guide direction extends along the major diameter direction of rotor, movement is individually directed in two pilot holes and is equipped with envelope
Sprue 4, each plugging block 4 is corresponding with corresponding Oil Guide channel 7 respectively, and Oil Guide channel is mutually to hang down with plugging block moving direction
Straight linear type channel, plugging block has in its shift motion gets out of the way the first position in corresponding Oil Guide channel 7 and in centrifugal force
The second position in corresponding Oil Guide channel 7 is moved and blocked under effect outwardly, use corresponding with each plugging block is provided on rotor 5
Plugging block is forced be in the spring of first position in applying active force to corresponding plugging block, spring is is set in the present embodiment
Pressure spring 6 on the outside of plugging block, the outside end of plugging block are provided with gasket seal, gasket seal can guarantee with outside Oil Guide channel
The sealing of side wall cooperates.It when motor is inactive, is acted on by pressure spring 6, each plugging block is in and gets out of the way the first of corresponding Oil Guide channel
As shown in Figure 1, motor is in incipient start-up course, rotor speed is smaller for position, 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, the pressure of rotor circumferential direction two sides is identical, the resistance that rotor motion is subject to
Power is just smaller, and low-load starting may be implemented, and low-power machine can realize the load starting of rotor, reach in rotor speed
After certain speed, such as after motor speed reaches 1000r/min, the centrifugal force of rotor overcomes the elastic force of pressure spring, plugging block to
Outer movement and by Oil Guide passage plugging, pump and normal fuel injection can be achieved.In actual use, can according to requirements, it is suitable to select
Spring or adjust the preload amount of spring normal fuel injection may be implemented to adjust motor in what revolving speed.
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 low pressure chamber 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 is as shown in Figure 3: packet
The brake units 13 of multiple circumferentially spaced arrangements are included, each brake units 13 include can be along motor shaft radial floating by spring
Brake shoes 16, brake units further include the fixation steel disc 14 being oppositely arranged with brake shoes, between brake shoes 16 and electric machine casing
It is provided with tripping 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 indicate spring guide cylinders, and in motor normal power supply, electromagnetic coil, which is powered, generates magnetic force and attracting with fixed steel disc 14, with this
Overcome tripping spring active force, brake shoes is not contacted with motor shaft, each to brake by the effect of tripping spring when motor power-off
Block contacts with motor shaft and realizes friction catch.Entire brake units are arranged on fixed electric machine casing, rather than
It is arranged on motor shaft, when motor shaft normal rotation does not need to expend more loads, facilitates energy conservation, while to electromagnetic coil
Power supply also becomes to be more easier, and 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.
The implementation of pump is for example shown in Fig. 1 ~ 7: the specific structure of pump and above-mentioned each hydraulic power assembly are as described in the examples
Pump identical, this will not be detailed here.
Claims (4)
1. hydraulic power assembly, including motor and the pump being driven by motor, pump includes the pump housing with cylindrical hole inner cavity, the pump housing
In be provided with pivot center extends along the longitudinal direction, cross section be elliptoid rotor, the cross section of rotor and bore
Tool is provided with inlet opening and fluid hole on the pump housing, is separated between inlet opening, fluid hole by partition, the one of partition there are two point of contact
End and rotor outer periphery face sliding pushing tow cooperation, it is characterised in that: the major diameter direction both ends of rotor are provided with connection rotor circumferential two
The Oil Guide channel of side, also along major diameter direction, guiding movement is equipped with plugging block in rotor, and plugging block has in its shift motion
It gets out of the way the first position in the Oil Guide channel and moves and block the second in the Oil Guide channel outwardly under the action of the centrifugal force
It sets, the spring for applying active force to the plugging block and plugging block being forced to be in first position is provided on rotor.
2. hydraulic power assembly according to claim 1, it is characterised in that: the spring is to be set on the outside of plugging block
Pressure spring.
3. pump, including the pump housing with cylindrical hole inner cavity, is provided with pivot center extends along the longitudinal direction, cross section in the pump housing
For elliptoid rotor, the cross section of rotor and bore tool are provided with inlet opening and fluid hole on the pump housing there are two point of contact,
It is separated between inlet opening, fluid hole by partition, one end of partition and rotor outer periphery face sliding pushing tow cooperation, it is characterised in that: turn
The major diameter direction both ends of son are provided with the Oil Guide channel of connection rotor circumferential direction two sides, also fill along major diameter direction guiding movement in rotor
Equipped with plugging block, plugging block has the first position and under the action of the centrifugal force for getting out of the way the Oil Guide channel in its shift motion
The second position in the Oil Guide channel is moved and blocked outwardly, is provided on rotor to the plugging block and is applied active force and force
Plugging block is in the spring of first position.
4. pump according to claim 3, it is characterised in that: the spring is the pressure spring being set on the outside of plugging block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751846.2A CN107327401B (en) | 2017-08-28 | 2017-08-28 | Pump and the hydraulic power assembly for using the pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710751846.2A CN107327401B (en) | 2017-08-28 | 2017-08-28 | Pump and the hydraulic power assembly for using the pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107327401A CN107327401A (en) | 2017-11-07 |
| CN107327401B true CN107327401B (en) | 2019-07-12 |
Family
ID=60203831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710751846.2A Active CN107327401B (en) | 2017-08-28 | 2017-08-28 | Pump and the hydraulic power assembly for using the pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327401B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1393934A1 (en) * | 1985-07-09 | 1988-05-07 | Хмельницкий Технологический Институт Бытового Обслуживания | Rotary compressor |
| JP2002054580A (en) * | 2000-08-09 | 2002-02-20 | Anelva Corp | Rotary pump |
| CN101614204A (en) * | 2008-06-27 | 2009-12-30 | 托克海姆控股有限公司 | The liquid conveyer of band blade |
| CN101749228A (en) * | 2008-12-15 | 2010-06-23 | 陈双利 | Pump |
| CN104471249A (en) * | 2012-06-14 | 2015-03-25 | 悦马塑料技术有限公司 | Positive displacement pump |
-
2017
- 2017-08-28 CN CN201710751846.2A patent/CN107327401B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1393934A1 (en) * | 1985-07-09 | 1988-05-07 | Хмельницкий Технологический Институт Бытового Обслуживания | Rotary compressor |
| JP2002054580A (en) * | 2000-08-09 | 2002-02-20 | Anelva Corp | Rotary pump |
| CN101614204A (en) * | 2008-06-27 | 2009-12-30 | 托克海姆控股有限公司 | The liquid conveyer of band blade |
| CN101749228A (en) * | 2008-12-15 | 2010-06-23 | 陈双利 | Pump |
| CN104471249A (en) * | 2012-06-14 | 2015-03-25 | 悦马塑料技术有限公司 | Positive displacement pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107327401A (en) | 2017-11-07 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20190128 Address after: 101500 Room 110-204, Government Building 1, 66 Huanhu Road, Xiwengzhuang Town, Miyun District, Beijing Applicant after: Beijing Walter Rexroth Hydraulic Pneumatic Equipment Co., Ltd. Address before: 450001 Science Avenue Shenglong Yicheng District A Building, Zhengzhou City, Henan Province Applicant before: Ma Laixun |
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