CN208268059U - A kind of servo type pin spring assembly vane pump - Google Patents
A kind of servo type pin spring assembly vane pump Download PDFInfo
- Publication number
- CN208268059U CN208268059U CN201820590842.0U CN201820590842U CN208268059U CN 208268059 U CN208268059 U CN 208268059U CN 201820590842 U CN201820590842 U CN 201820590842U CN 208268059 U CN208268059 U CN 208268059U
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- blind hole
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- blade
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 33
- 238000001746 injection moulding Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 244000228957 Ferula foetida Species 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a kind of servo type pin spring assembly vane pumps, including shell, stator, rotor, preceding oil distribution casing, axis and rear oil distribution casing, the inner hole of rotor is fixed with steel bushing, and rotor inner hole corresponds to steel bushing and offers annular oil groove, the outer ring of rotor offers multiple grooves being axially distributed, the middle part of groove is provided with the column pin hole being connected with annular oil groove on rotor, blind hole pin is installed in column pin hole, blind hole pin can prolong in column pin hole to be radially slided, and spring is equipped between blind hole pin and steel bushing；Correspond to blind hole pin in each groove and blade be installed, the size of blade and groove matches, can prolong in groove it is radial radially slide, the inside of blade is in contact with the outer end of blind hole pin, and the outside of blade and the inner ring of stator fit.The utility model servo type pin spring assembly vane pump, can reduce the minimum speed of blade pump operation, enable vane pump steady operation under the low speed, promote the efficiency of hydraulic system, reduce energy consumption.
Description
Technical field
The utility model relates to blade pump technical field more particularly to a kind of servo type pin spring assembly vane pumps.
Background technique
Hydraulic drive due to its stable drive, speed regulation is convenient, power to volume ratio is big the advantages that be widely used in power
In transmission system, but hydraulic drive is simultaneously there is also inefficient, the disadvantages such as energy consumption is higher.Therefore, it is mentioned using energy-saving design
High efficiency becomes question of common concern in hydraulic technique.Previous energy-saving design all focus on hydraulic circuit design and
In the selection of efficient hydraulic element, certain energy-saving effect is achieved.Hydraulic device is proposed recently as people higher
Energy conservation and otherwise requirement, some hydraulic device classes (such as: injection molding machine, die casting machine, hydraulic press) begin to use servo
Motor replaces traditional threephase asynchronous machine.Since servo motor requires the work that oil pump under the low speed can be stable, and pass
The vane pump of system can not work under the low speed (be lower than 600 turns or less), this allow for quality-high and inexpensive vane pump can not and servo
Motor matches.By taking injection molding machine industry as an example: the most commonly used is traditional T6/T7 Series Blades for hydraulic injection molding machine power source
Pump, operating pressure height (reaching as high as 320Bar), volumetric efficiency is high, low noise, range of speeds 600-2800rpm, discharge capacity
Range is 5-269ml/rev, using dual lip configuration blade, has extremely strong contamination resistance, adapts to the viscosity model of hydraulic medium
It encloses greatly, can start at low temperature and be run under high temperature.But it is not suitable for the low speed pressure maintaining operation in the case of servo motor driving, because
This traditional blades pump loses this market of injection molding machine.Therefore, the servo type leaf that can be used cooperatively with servo motor is designed
Piece pump, has entire Hydraulic Industry positive meaning.
Although traditional vane pump has various advantages, but can not be basic former in 600 revs/min or less starting work
Cause is that active force suffered by the blade under low speed situations is too small, can not be adjacent to form confined space with stator inner surface, in turn
Cause oil liquid that can not be discharged.
Due to the inherent shortcoming of traditional blades pump, current each producer generally selects inner tooth pump and servo motor to match,
But there are following disadvantages for inner tooth pump: 1, price is high, embodies and becomes apparent on the oil pump of huge discharge；2, stain resistance
Difference, maintenance cost is high, and projected life is generally not achieved in the service life；3, difficult maintenance, after inner tooth pump is once damage, essentially all zero
Part cannot use.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of servo type pin spring assembly vane pump with a novel purpose, minimum turn of blade pump operation can be reduced
Speed enables vane pump steady operation under low speed (within 50 revs/min), can match with servo motor, is promoted hydraulic
The efficiency of system reduces energy consumption.
The technical solution of the utility model is:
A kind of servo type pin spring assembly vane pump, including shell, stator, rotor, preceding oil distribution casing, axis and rear with oil
Disk, the preceding oil distribution casing and rear oil distribution casing are separately positioned on the front and rear sides of stator, and are fixed together by screw and pin,
Preceding oil distribution casing is immobilized in the shell by pin, and the rotor is arranged in stator, and one end of the axis and rotor pass through spline
It is fixedly connected, and the other end of axis passes through rotor and stretches out shell；
The inner hole of the rotor is fixed with steel bushing, and rotor inner hole corresponds to steel bushing and offers annular oil groove, the rotor
Outer ring offers multiple grooves being axially distributed, and the middle part of the groove is provided with the pin being connected with annular oil groove on rotor
Hole is equipped with blind hole pin in the column pin hole, and the blind hole pin can prolong in column pin hole to be radially slided, the blind hole pin
Spring is equipped between steel bushing；
Blind hole pin being corresponded in each groove, blade being installed, the size of the blade and groove matches, can be
Prolong radial direction in groove to radially slide, the inside of the blade is in contact with the outer end of blind hole pin, and the outside of blade and stator
Inner ring fit.
It preferably, is in elliptical cylinder-shape on the inside of the stator.
Preferably, the outer ring of the steel bushing corresponds to spring and is provided with spring pedestal.
Preferably, the blind hole pin, blade are identical with the number of groove, and are even number, and number is 10-16.
Preferably, the blind hole of the blind hole pin is towards rotor center.
Preferably, blind hole pin and spring assembly installation, and spring is between blind hole pin and steel bushing.
It is in the utility model the utility model has the advantages that this servo type spring pin type combined blade pump use above-mentioned technical side
Case, though under very low revolving speed, since the effect of spring allows blade to be close to stator inner surface, two neighboring blade and
Oil distribution casing is formed together confined space, as the rotation of rotor causes the variation of above-mentioned confined space, and then oil liquid is discharged, shape
At vane pump continuous work, this pin spring assembly vane pump overcomes the defect of traditional blades pump, meets servo motor
Control requires, and improves the efficiency of hydraulic system, reduces hydraulic system energy consumption.
Common inner tooth pump is compared in the market, is gathered around and is had the advantage that first, cheap, with the oil pump of 100CC discharge capacity
For, inner tooth pump price is twice or so of vane pump price.Second, antifouling property is outstanding, due in structure, this group
Hing straps pump is lower to oil liquid requirement, by taking injection molding machine as an example, in the life cycle of equipment, essentially without replacement hydraulic oil.
Third is easy maintenance, due to the unique plug-in pump core design of vane pump, repairs very convenient.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 be the utility model proposes a kind of servo type pin spring assembly vane pump schematic diagram of internal structure；
Fig. 2 be the utility model proposes the stator of a kind of servo type pin spring assembly vane pump, rotor, blade, blind
Hole pin, spring, the connection schematic diagram between steel bushing；
Fig. 3 is the cross-sectional view of A-A in Fig. 2；
Fig. 4 be the utility model proposes a kind of servo type pin spring assembly vane pump blind hole plug structures signal
Figure；
Fig. 5 be the utility model proposes a kind of servo type pin spring assembly vane pump steel sleeve structure schematic diagram；
Fig. 6 is the right view of Fig. 1 in the utility model；
Fig. 7 is the top view of Fig. 1 in the utility model.
In figure: 1- shell；2- stator；3- rotor；Oil distribution casing before 4-；5- axis；Oil distribution casing after 6-；7- steel bushing；8- column pin hole；
9- spring；10- blind hole pin；11- blade；12- groove；13- annular oil groove；14- spline；
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Examples of the embodiments are shown in the accompanying drawings, and in which the same or similar labels are throughly indicated identical or classes
As element or element with the same or similar functions.The embodiments described below with reference to the accompanying drawings are exemplary, purport
It is being used to explain the utility model, and should not be understood as limiting the present invention.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable
The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on the figure
Or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limit to the utility model
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
Referring to Fig.1-7, a kind of servo type pin spring assembly vane pump, including shell 1, stator 2, rotor 3, preceding oil distribution casing
4, axis 5 and rear oil distribution casing 6, the preceding oil distribution casing 4 and rear oil distribution casing 6 are separately positioned on the front and rear sides of stator 2, and pass through screw
It is fixed together with pin, preceding oil distribution casing 4 is fixed in shell 1 by pin, and the rotor 3 is arranged in stator 2, the axis
5 one end is fixedly connected with rotor 3 by spline 14, and the other end of axis 5 passes through rotor 3 and stretches out shell 1, the middle part of axis 5
It is fixed on shell 1 by bearing；
The inner hole of the rotor 3 is fixed with steel bushing 7, and 3 inner hole of rotor corresponds to steel bushing 7 and offers annular oil groove 13, described
The outer ring of rotor 3 offers multiple grooves 12 being axially distributed, and the middle part (among bottom) of the groove 12 is provided on rotor 3
The column pin hole 8 being connected with annular oil groove 13 is equipped with blind hole pin 10 in the column pin hole 8, and blind hole pin 10 can be in pin
Prolong in hole 8 and radially slide, spring 9 is equipped between the blind hole pin 10 and steel bushing 7,9 both ends of spring are located at the outer ring of steel bushing 7
In blind hole pin 10；
Blind hole pin 10 is corresponded in each groove 12, and blade 11, the size phase of the blade 11 and groove 12 are installed
Matching can prolong radial direction in groove 12 and radially slide, and the inside of the blade 11 is in contact with the outer end of blind hole pin 10, and leaf
The outside of piece 11 and the inner ring of stator 2 fit.
It is in elliptical cylinder-shape on the inside of the stator 2.
The outer ring of the steel bushing 7 corresponds to spring 9 and is provided with spring pedestal, convenient for the installation of spring 9.
The blind hole pin 10, blade 11 are identical with the number of groove 12, and are even number, and number is 10-16, this
It is 10 in embodiment.
The blind hole of the blind hole pin 10 is towards 3 center of rotor.
The blind hole pin and spring assembly installation, and spring is between blind hole pin and steel bushing.
Working principle: for vane pump in low rate start, spring 9 is due to by the steel bushing 7 and blind hole column for being located at 3 inner hole of rotor
Stretching motion back and forth is done in the limitation of pin 10；Blind hole pin 10 is reciprocating in column pin hole 8；Positioned at 3 outer ring groove 12 of rotor
The blind hole pin 10 that interior blade 11 is fitted with spring 9 ejects, and is close to the negative camber of stator 2, the groove in 3 outer ring of rotor always
It is reciprocating in 12.On the other hand, this is several for adjacent two blades 11, rotor 3, stator 2, preceding oil distribution casing 6 and rear oil distribution casing 4
Closed chamber is formed between person, when rotor 3 starts rotation, since 2 negative camber of stator is close to elliptical curve, so that above-mentioned
The closed chamber of formation generates variation, to realize oil suction and oil extraction.When blade 11 turns to the negative camber of 2 minor radius of stator
It is oil extraction state when blade 11 turns to 2 large radius negative camber of stator for oil inlet state.Due to the annular oil of 2 inner hole of rotor
Slot 13 and high pressure oil communicate, so work of the blind hole pin 10 other than by the active force of spring 9, also by bottom high-pressure oil
Firmly and centrifugal force.It is assembled by the combination of blind hole pin 10 and spring 9, so that this combined blade pumps a variety of different revolving speeds
Under pressure condition, it is able to maintain good performance.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of servo type pin spring assembly vane pump, including shell, stator, rotor, preceding oil distribution casing, axis and rear oil distribution casing,
It is characterized by: the preceding oil distribution casing and rear oil distribution casing are separately positioned on the front and rear sides of stator, and solid by screw and pin
It is scheduled on together, preceding oil distribution casing is immobilized in the shell by pin, and the rotor is arranged in stator, one end of the axis and rotor
It is fixedly connected by spline, and the other end of axis passes through rotor and stretches out shell, the middle part of axis is fixed on shell by bearing；
The inner hole of the rotor is fixed with steel bushing, and rotor inner hole corresponds to steel bushing and offers annular oil groove, the outer ring of the rotor
Multiple grooves being axially distributed are offered, are provided with the pin being connected with annular oil groove on rotor among the bottom of the groove
Hole is equipped with blind hole pin in the column pin hole, and the blind hole pin can prolong in column pin hole to be radially slided, the blind hole pin
Spring is equipped between steel bushing；
Blind hole pin being corresponded in each groove, blade being installed, the size of the blade and groove matches, can be in groove
Inside prolong it is radial radially slide, the inside of the blade is in contact with the outer end of blind hole pin, and the outside of blade and stator is interior
Circle fits.
2. a kind of servo type pin spring assembly vane pump according to claim 1, it is characterised in that: on the inside of the stator
In elliptical cylinder-shape.
3. a kind of servo type pin spring assembly vane pump according to claim 1, it is characterised in that: outside the steel bushing
It encloses corresponding spring and is provided with spring pedestal.
4. a kind of servo type pin spring assembly vane pump according to claim 1, it is characterised in that: the blind hole column
Pin, blade are identical with the number of groove, and are even number, and number is 10-16.
5. a kind of servo type pin spring assembly vane pump according to claim 1, it is characterised in that: the blind hole pin
Blind hole towards rotor center.
6. a kind of servo type pin spring assembly vane pump according to claim 1, it is characterised in that: the blind hole pin
It is installed with spring assembly, and spring is between blind hole pin and steel bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590842.0U CN208268059U (en) | 2018-04-24 | 2018-04-24 | A kind of servo type pin spring assembly vane pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590842.0U CN208268059U (en) | 2018-04-24 | 2018-04-24 | A kind of servo type pin spring assembly vane pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268059U true CN208268059U (en) | 2018-12-21 |
Family
ID=64680670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590842.0U Expired - Fee Related CN208268059U (en) | 2018-04-24 | 2018-04-24 | A kind of servo type pin spring assembly vane pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208268059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565756A (en) * | 2021-08-12 | 2021-10-29 | 太原理工大学 | Spring primary and secondary blade pump core suitable for high-speed and low-speed work |
-
2018
- 2018-04-24 CN CN201820590842.0U patent/CN208268059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565756A (en) * | 2021-08-12 | 2021-10-29 | 太原理工大学 | Spring primary and secondary blade pump core suitable for high-speed and low-speed work |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 |