CN107327401A - Pump and the hydraulic power assembly using the pump - Google Patents
Pump and the hydraulic power assembly using the pump Download PDFInfo
- Publication number
- CN107327401A CN107327401A CN201710751846.2A CN201710751846A CN107327401A CN 107327401 A CN107327401 A CN 107327401A CN 201710751846 A CN201710751846 A CN 201710751846A CN 107327401 A CN107327401 A CN 107327401A
- Authority
- CN
- China
- Prior art keywords
- rotor
- pump
- plugging block
- guide passage
- 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.)
- Granted
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
- F04C2/3562—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
Abstract
The present invention relates to the hydraulic power assembly of a kind of pump and the use pump, pump includes the pump housing with cylindrical hole inner chamber, rotor is provided with the pump housing, the cross section of rotor has two point of contacts with bore, inlet opening and fluid hole are provided with the pump housing, inlet opening, separated between fluid hole by dividing plate, pushing tow is slided with rotor outer periphery face and is coordinated in one end of dividing plate, the major diameter direction of rotor is provided at both ends with the Oil Guide passage of the circumferential both sides of UNICOM's rotor, also plugging block is equipped with rotor along major diameter direction guiding movement, plugging block has in its shift motion gets out of the way the first position of the Oil Guide passage and moves and block the second place of the Oil Guide passage outwardly under the action of the centrifugal force, the spring for setting the oriented plugging block to apply active force and force plugging block to be in first position on rotor.The pump of starting load can be reduced the invention provides a kind of.
Description
Technical field
The present invention relates to the hydraulic power assembly of a kind of pump and the use pump.
Background technology
At present, hydraulic power assembly is relatively conventional in production, life, and hydraulic power assembly includes motor and by motor
The pump of drive, existing pump " pump " as disclosed in Chinese patent CN101749228A, pump includes being provided with pump on pedestal, pedestal
Body, the pump housing, which has, is provided with the rotor that pivot center extends along the longitudinal direction in cylindrical hole inner chamber, cylindrical hole inner chamber, section of rotor
Face and cylindrical hole inner chamber You Liangge point of contacts.The periphery of the pump housing is provided with guiding movement at hole, hole and is equipped with baffle plate, and baffle plate is by the hole
Inlet and liquid outlet are divided into, rotor is cylinder, and one end and the rotor outer periphery face of dividing plate are slided pushing tow and coordinated.
In use, rotor clockwise is rotated, the cavity of rotor both sides is communicated with inlet and liquid outlet respectively, wherein with entering
The cavity that liquid mouth is communicated is low pressure chamber, and the cavity communicated with liquid outlet is high pressure chest, and dividing plate slides pushing tow with rotor all the time and coordinated
Ensure that low pressure chamber and high pressure chest are obstructed, rotor is in rotation process, and hydraulic oil is inhaled into low pressure chamber through oil inlet, with rotor
Rotate extruding and discharged through oil-out, realize pump oil.Existing this pump has problems in that：Rotor is driven by motor and turned
It is dynamic, for correspondence 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 during startup in low pressure chamber, to complete that to hydraulic oil acting the startup of motor could be completed, this is increased by
The starting load of motor, lowest power when not only resulting in choice of electrical machine increased, and can also influence the normal energy consumption of motor.
The content of the invention
The pump of starting load can be reduced it is an object of the invention to provide a kind of；The present invention also aims to provide one
Plant the hydraulic power assembly using the pump.
In order to solve the above technical problems, the technical scheme of hydraulic power assembly is as follows in the present invention：
Hydraulic power assembly, including motor and by motor-driven pump, pump is included in the pump housing with cylindrical hole inner chamber, the pump housing
Pivot center extends along the longitudinal direction, cross section is provided with for elliptoid rotor, cross section and the bore of rotor have
Have and be provided with inlet opening and fluid hole on two point of contacts, the pump housing, separated between inlet opening, fluid hole by dividing plate, one end of dividing plate
Pushing tow is slided with rotor outer periphery face to coordinate, the major diameter direction of rotor is provided at both ends with the Oil Guide passage of the circumferential both sides of UNICOM's rotor,
Plugging block also is equipped with along major diameter direction guiding movement in rotor, plugging block is logical with the Oil Guide is got out of the way in its shift motion
It is provided with the first position in road and the second place for moving and blocking the Oil Guide passage outwardly under the action of the centrifugal force, rotor
Apply active force to the plugging block and force spring of the plugging block in first position.
The spring is to be arranged at the stage clip on the outside of plugging block.
The technical scheme of pump is in the present invention：
Pivot center extends along the longitudinal direction, cross section is provided with pump, including the pump housing with cylindrical hole inner chamber, the pump housing is
Elliptoid rotor, cross section and the bore of rotor have is provided with inlet opening and fluid hole on two point of contacts, the pump housing, enters
Separated between fluid apertures, fluid hole by dividing plate, one end and the rotor outer periphery face of dividing plate are slided pushing tow and coordinated, the major diameter direction two of rotor
End is provided with the Oil Guide passage of the circumferential both sides of UNICOM's rotor, rotor and is also equipped with plugging block along major diameter direction guiding movement, seals
Sprue has the first position for getting out of the way the Oil Guide passage in its shift motion and moves and seal outwardly under the action of the centrifugal force
The second place of the Oil Guide passage is blocked up, sets on rotor the oriented plugging block to apply active force and forces plugging block to be in the
The spring of one position.
The spring is to be arranged at the stage clip on the outside of plugging block.
Beneficial effects of the present invention are：In the present invention, when rotor is not rotated, by spring effect, plugging block is in first
Position, the circumferential both sides of Oil Guide passage UNICOM rotor, during rotor ground zero, because rotating speed is also relatively slow, therefore centrifugal force is not enough to
Overcome the active force of spring, therefore Oil Guide passage is still turned on, the oil pressure of rotor circumference both sides is consistent, therefore the startup 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
Move to the second place, Oil Guide passage is blocked, so as to realize normal fuel feeding.
Brief description of the drawings
Fig. 1 is view when pump is not actuated in hydraulic power assembly embodiment of the present invention；
Fig. 2 is the view after pump startup in hydraulic power assembly embodiment of the present invention；
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 representation of adjustment spanner in hydraulic power assembly embodiment of the present invention；
Fig. 6 is Fig. 5 side view；
Fig. 7 is the cooperation schematic diagram of electric machine casing and the pump housing in hydraulic power assembly embodiment of the present invention.
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
Pivot center extends along the longitudinal direction, cross section is provided with the pump housing 2 of chamber, the pump housing 2 for elliptoid rotor 5, rotor 5
Cross section and bore, which have, to be provided with guiding movement at hole, hole on two point of contacts, the pump housing and is equipped with one end and rotor outer periphery
The dividing plate 9 for being used to being separated into hole into inlet 8, liquid outlet 1 that pushing tow coordinates is slided in face, and cylindrical hole inner chamber is also separated by dividing plate 9
Into the low pressure chamber 11 with the UNICOM of inlet 8 and the high pressure chest 3 with the UNICOM of liquid outlet 1, the major diameter direction of rotor is provided at both ends with connection
The Oil Guide passage 7 of the logical circumferential both sides of rotor, the major diameter direction for extending perpendicularly to rotor 5 of Oil Guide passage.The two ends of rotor
It is additionally provided with the pilot hole of major diameter direction extension of the guide direction along rotor, two pilot holes and is individually directed mobile be equipped with
Plugging block 4, each plugging block 4 is corresponding with each self-corresponding Oil Guide passage 7 respectively, and Oil Guide passage is and plugging block moving direction phase
Vertical linear pattern passage, plugging block has the first position for getting out of the way correspondence Oil Guide passage 7 and centrifuged in its shift motion
Move and block outwardly under power effect be provided with the second place of correspondence Oil Guide passage 7, rotor 5 it is corresponding with each plugging block
Spring of the plugging block in first position is forced for applying active force to correspondence plugging block, spring is setting in the present embodiment
Stage clip 6 on the outside of plugging block, the outer end end of plugging block is provided with gasket seal, and gasket seal can ensure and Oil Guide passage
The sealing of lateral wall coordinates.When motor is not actuated, acted on by stage clip 6, each plugging block, which is in, gets out of the way the of correspondence Oil Guide passage
One position is as shown in figure 1, motor is in incipient start-up course, and rotor speed is smaller, and the centrifugal force of plugging block is not enough to gram
The active force of stage clip is taken, therefore Oil Guide passage is always conducting, the pressure of rotor circumference both sides is identical, what rotor motion was subject to
Resistance is just smaller, it is possible to achieve low-load starts, and low-power machine can just realize that the load of rotor starts, and be arrived in rotor speed
Up to after certain speed, such as motor speed is reached after 1000r/min, and the centrifugal force of rotor overcomes the elastic force of stage clip, plugging block
It is displaced outwardly and by Oil Guide passage plugging, pump can realize normal fuel injection.When actual use, it can select to close according to requirements
Suitable spring adjusts the pretension amount of spring and carrys out regulation motor and what rotating speed can realize normal fuel injection at.
Motor includes arranging before and after the electric machine casing 12 being connected with the pump housing, electric machine casing 12, the pump housing 2, set in electric machine casing
The motor shaft 18 that pivot center extends along the longitudinal direction is equipped with, 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 discharge opeing nut 32 on arbor 18, is evenly distributed on the outward flange of discharge opeing nut 32
There are multiple breach 33.The annular groove 34 corresponding with discharge opeing nut 32 is provided with electric machine casing, annular groove 34 is in dynamic
The front side of sealing mechanism, the bottom of annular groove 34 is provided with outage 35, and the upper end of electric machine casing is provided with air admission hole 31, entered
Stomata 31, which is at the front side of dynamic sealing mechanism 30, air admission hole 31, is provided with breather cheek valve, 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 UNICOM, liquid sucting port are provided with the pump housing
Liquid non-return valve is provided with 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 connected with outage 35 by flexible pipe.Power assembly normal in use, dynamic sealing mechanism may fail, the now liquid in pump
Force feed can be through flow direction motor between dynamic sealing mechanism and motor shaft, after hydraulic oil is flowed on discharge opeing nut 32, the quilt of hydraulic oil 32
Get rid of into annular groove 34, and annular groove 34 is then connected through outage 35, liquid sucting port 10 and the low pressure chamber of pump, the hydraulic pressure of leakage
Oil can be drawn into low pressure chamber again, participate in the pump oil of next stage.
Motor also includes the brake device for electrical machinery for being used to brake to motor shaft, and brake device for electrical machinery is as shown in Figure 3：Bag
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 also include the fixation steel disc 14 that is oppositely arranged with brake shoes, between brake shoes 16 and electric machine casing
It is provided with tripping spring 15, brake shoes 16 and is provided with magnet coil, magnet coil is electrically connected with the supply lines of motor.Figure middle term
17 represent spring guide cylinders, in motor normal power supply, and magnet coil, which is powered, produces magnetic force and attracting with fixed steel disc 14, with this
Overcome tripping spring active force, brake shoes is not contacted with motor shaft, when motor is powered off, acted on by tripping spring, each brake
Block contacts with motor shaft and realizes friction catch.Whole brake units are arranged on fixed electric machine casing, rather than
It is arranged on motor shaft, more loads need not be expended during motor shaft normal rotation, contribute to energy-conservation, while to magnet coil
Power supply also becomes to be more prone to, and whole device is easily realized, and is not easy to break down.
General bearing block is provided with the end of electric machine casing, general bearing block is adapted to the electricity of plurality of specifications size
Arbor, its basic structure is：Bearing block includes the clamping list that a pair of opposing is provided with frame-shaped body 21, frame-shaped body
Member, two grip units are referred to as grip unit 20 and lower grip unit 19, and each grip unit includes and frame shape sheet
The screw rod 23 of body threaded connection, the screw flight of upper and lower grip unit is oppositely oriented and is coaxially set, and the inner of screw rod is set
Grip block 24 is equipped with, screw rod can be rotated relative to grip block, has been gripped between two grip blocks for matching somebody with somebody with motor shaft 18
The bearing 25 of conjunction.The upper end of the screw rod of upper grip unit is provided with the upper montant jack 22 axially vertical with screw rod, lower bearing list
The lower end of the screw rod of member is provided with the lower montant jack 50 axially vertical with screw rod, and upper and lower montant jack respectively constitutes two spiral shells
The moment of torsion input structure of bar.The adjustment spanner of distance between grip block of the bearing block also including being used to adjust upper and lower grip unit,
Adjust spanner as seen in figs. 5-6, it include cross bar 27 and two can along the bearing of trend guiding movement of cross bar 27 montant 26, montant
26 are slidably matched by the T-shaped termination 28 of its end with the guiding of T-slot 29 on cross bar 27, in use, two montants 26 of adjustment
Position, two montants are respectively inserted in the corresponding montant jack of upper and lower grip unit, axle of the cross bar around screw rod is then moved
Line is rotated, and cross bar drives two montants to swing, so as to drive each screw rod to rotate, to realize the grip block of upper and lower grip unit
Relative movement adjustment is moved away from adjustment, to match the bearing of different-diameter, and the adjustment mode has the beneficial effect that, two spiral shells
The rotational angle of bar is consistent, therefore the displacement of the grip block of upper and lower grip unit is consistent, and this is ensured that
No matter how general bearing block adjusts, and can ensure 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 scheme a part, than
Such as say that adjustment spanner can be sold separately in addition；Moment of torsion input structure on screw rod can also be flat head structure, now can be
The driving groove coordinated with flat head structure rotation stop is set on montant.
The implementation of pump is for example shown in Fig. 1 ~ 7：Described in the concrete structure of pump and above-mentioned each hydraulic power assembly embodiment
Pump is identical, will not be described in detail herein.
Claims (4)
1. hydraulic power assembly, including motor and by motor-driven pump, pump includes the pump housing with cylindrical hole inner chamber, the pump housing
In be provided with pivot center extends along the longitudinal direction, cross section for elliptoid rotor, the cross section of rotor and bore
With two point of contacts, inlet opening and fluid hole are provided with the pump housing, is separated between inlet opening, fluid hole by dividing plate, the one of dividing plate
Pushing tow is slided with rotor outer periphery face and is coordinated in end, it is characterised in that：The major diameter direction of rotor is provided at both ends with UNICOM's rotor circumferential two
Plugging block also is equipped with along major diameter direction guiding movement in the Oil Guide passage of side, rotor, plugging block has in its shift motion
Get out of the way the first position of the Oil Guide passage and move and block the second of the Oil Guide passage outwardly under the action of the centrifugal force
Put, the spring for setting the oriented plugging block to apply active force and force plugging block to be in first position on rotor.
2. hydraulic power assembly according to claim 1, it is characterised in that：The spring is to be arranged on the outside of plugging block
Stage clip.
3. pivot center extends along the longitudinal direction, cross section is provided with pump, including the pump housing with cylindrical hole inner chamber, the pump housing
For elliptoid rotor, cross section and the bore of rotor have is provided with inlet opening and fluid hole on two point of contacts, the pump housing,
Separated between inlet opening, fluid hole by dividing plate, one end and the rotor outer periphery face of dividing plate are slided pushing tow and coordinated, it is characterised in that：Turn
The major diameter direction of son is provided at both ends with the Oil Guide passage of the circumferential both sides of UNICOM's rotor, rotor and also filled along major diameter direction guiding movement
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 passage in its shift motion
Move and block outwardly and set the oriented plugging block to apply active force and force on the second place of the Oil Guide passage, rotor
Plugging block is in the spring of first position.
4. pump according to claim 3, it is characterised in that：The spring is to be arranged at the stage clip 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 true CN107327401A (en) | 2017-11-07 |
| CN107327401B 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 |
|---|---|
| CN107327401B (en) | 2019-07-12 |
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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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| GR01 | Patent grant |