CN206221228U - A kind of constant current flood pump - Google Patents
A kind of constant current flood pump Download PDFInfo
- Publication number
- CN206221228U CN206221228U CN201621115788.1U CN201621115788U CN206221228U CN 206221228 U CN206221228 U CN 206221228U CN 201621115788 U CN201621115788 U CN 201621115788U CN 206221228 U CN206221228 U CN 206221228U
- Authority
- CN
- China
- Prior art keywords
- throttling
- plectane
- plate
- ring flat
- constant current
- 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
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model is related to a kind of constant current flood pump, including pump case, driving gear, driven gear, bonnet, after cover and be provided with valve opening and oil-out, safety valve is provided with valve opening.The valve opening is provided with throttling plectane with oil-out connectivity part envelope, and throttling plectane is provided with multiple throttle orifices, and throttling plectane circle centre position is vertically provided with fixed column；Fixed column is arranged with restrictor ring plate along excircle depression limited location groove in limited impression, throttling ring flat-plate is rotated with fixed intercolumniation and is connected, and throttling ring flat-plate is provided with and one-to-one No. two throttle orifice of throttle orifice；Throttling plectane outer peripheral edge is provided with one section of arc positioning groove, and location hole is correspondingly provided with throttling ring flat-plate；Also include screw bolt and nut, sequentially passing through location hole, arc positioning groove by bolt between throttling plectane, throttling ring flat-plate screws togather and be fixedly connected with nut.The utility model can change No. one, No. two staggeredly degree of throttle orifice, actual orifice size is changed, so as to adjust magnitude of back pressure, adapt to complex working condition.
Description
Technical field
The utility model is related to pump manufacturing technology field, particularly a kind of constant current flood pump.
Background technology
Constant current flood pump is to compensate the external gear rotary pump compensated with hydraulic radial automatically with axial gap to be overflow with constant current
Stream valve group into constant flow pump.Operationally, fluid enters valve opening to constant current flood pump by bonnet fuel feed hole, then by throttling body
To bonnet oil-out, due to the orifice restriction of the body that throttles after, can there is back pressure in bonnet, promote safety valve to be moved to main spool spring end
Dynamic, when safety valve body moves to setting position, unnecessary fluid can flow back into the oil inlet of constant flow pump, pump is produced a perseverance
Fixed discharge.Size and constant flow pump the point discharge capacity of throttle orifice determine the size of back pressure.But existing throttle orifice size is usual
To immobilize, so as to define magnitude of back pressure, it is impossible to meet complicated work condition environment.Only setting suitable back pressure could protect
The action for demonstrate,proving constant current flood pump is more steady.
Utility model content
Technical problem to be solved in the utility model is to overcome above mentioned problem, and providing one kind can change valve opening and go out
The constant current flood pump of the throttling caliber size of hydraulic fluid port joint, so as to change bonnet magnitude of back pressure, adapts it to different operating modes
Demand.
The technical solution of the utility model is：
A kind of constant current flood pump described in the utility model, including pump case, the driving gear that is arranged in pump case and driven
Gear and lid are located at the bonnet of pump case rear end, it is described after cover and be provided with interconnected valve opening and oil-out, the valve opening
Inside it is provided with safety valve, it is characterised in that：The valve opening is provided with throttling plectane with the connectivity part envelope of oil-out, on the throttling plectane
Multiple throttle orifices are provided with, a fixed column, the center of the fixed column are convexly equipped with the home position of the throttling plectane
Axis is perpendicular to plane where throttling plectane；The fixed column has a limited impression, the limited impression along excircle depression
Inside it is arranged with and connection is rotated between restrictor ring plate and the throttling ring flat-plate and fixed column, the throttling ring flat-plate is provided with and a section
One-to-one No. two throttle orifices of discharge orifice；
Outer peripheral edge on the throttling plectane is provided with one section of arc positioning groove, and one is correspondingly provided with the throttling ring flat-plate
Location hole；A screw bolt and nut is also included, positioning is sequentially passed through by bolt between the throttling plectane, throttling ring flat-plate
Hole, arc positioning groove and nut are screwed togather and achieved a fixed connection.
By said structure, can be rotated against between the throttling plectane and throttling ring flat-plate and cause throttle orifice, two
Number throttle orifice mutually staggers, so as to change throttling bore, is changed by the fluid flow in section at the position, so that
Different size of pressure difference is formed between both sides.
Further, in constant current flood pump described in the utility model, the external diameter of the throttling ring flat-plate is slightly less than throttling circle
The external diameter of plate.
Further, in constant current flood pump described in the utility model, the center of circle and the throttling plectane of the arc positioning groove
The center of circle overlap.
Further, in constant current flood pump described in the utility model, the throttling plectane center of circle to the throttling ring flat-plate center of circle
Distance be not more than 4cm, between the two away from unsuitable excessive, it is to avoid influence restriction effect.
Further, in constant current flood pump described in the utility model, a throttle orifice, No. two complete phases of throttle orifice
Together.
The beneficial effects of the utility model are：
1st, compared to the changeless structure in conventional throttle aperture, the utility model can change according to different use demands
The staggeredly degree of number throttle orifice, No. two throttle orifices so that actual orifice size changes, so that magnitude of back pressure is adjusted,
Universality is higher.
2nd, regulative mode is simple and easy to apply, it is only necessary to rotation throttling ring flat-plate, and fixed by bolt, nut and location hole, arc
The cooperation of position groove realizes that postrotational position is fixed.
Brief description of the drawings
Fig. 1 is schematic cross-sectional view of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is local fractionation schematic diagram of the present utility model.
Specific embodiment
The utility model is further described in conjunction with accompanying drawing：
Shown in reference picture 1- Fig. 3, a kind of constant current flood pump described in the present embodiment, including pump case, be arranged in pump case
Driving gear and driven gear and lid are located at the bonnet 1 of pump case rear end, and interconnected valve opening 2 is provided with the bonnet 1
With oil-out 3, safety valve 4 is provided with the valve opening 2.
The valve opening 2 is provided with throttling plectane 5 with the connectivity part envelope of oil-out 3, and the throttling plectane 5 is provided with multiple No. one
Throttle orifice 6, a fixed column 7, the central axis upright of the fixed column 7 are convexly equipped with the home position of the throttling plectane 5
In the throttling place plane of plectane 5；The fixed column 7 has a limited impression 8, the inner sleeve of the limited impression 8 along excircle depression
Be provided with throttling ring flat-plate 9, the external diameter of the throttling ring flat-plate 9 is slightly less than the external diameter of throttling plectane 5, and the throttling ring flat-plate 9 with it is fixed
Connection is rotated between post 7, the throttling ring flat-plate 9 is provided with and a throttle orifice 6 one-to-one No. two throttle orifices 10, described one
Number 6, No. two throttle orifices 10 of throttle orifice are identical.Thus, throttling ring flat-plate 9 can rotate relative to throttling plectane 5.Wherein, more specifically
Ground, the throttling center of circle of plectane 5 is not more than 4cm to the distance in throttling ring flat-plate 9 center of circle.
It is used to restriction throttling plectane 5, the structure of the position of throttling ring flat-plate 9 in the present embodiment be described as follows.The section
Outer peripheral edge on stream plectane 5 is provided with one section of arc positioning groove 11, and a location hole 12 is correspondingly provided with the throttling ring flat-plate 9,
The center of circle of the arc positioning groove 11 overlaps with the center of circle of throttling plectane 5.The present embodiment also includes a He of bolt 13
Nut 14, location hole 12, arc positioning groove 11 and spiral shell are sequentially passed through between the throttling plectane 5, throttling ring flat-plate 9 by bolt 13
Female 14 screw togather and achieve a fixed connection.
The operation principle of the present embodiment is：By rotating throttling ring flat-plate 9 so that 6, No. two throttle orifices 10 of a throttle orifice
The corresponding certain position that staggers, both overlapping regions are actual orifice size, as throttling ring flat-plate 9 is around the anglec of rotation of fixed column 7
The change of degree, orifice size is changed, and the accessible back pressure in both sides also changes.When throttling ring flat-plate 9 and throttling plectane 5
After relative position is determined, bolt 13 run through location hole 12, be located in thereafter at a certain position in arc positioning groove 11 and with
The locking connection of nut 14, realizes the fixation of position.
Specific embodiment described herein only illustrative principle of the present utility model and its effect, not for
Limitation the utility model.Any person skilled in the art all can be under without prejudice to spirit and scope of the present utility model, to upper
Stating embodiment carries out modifications and changes.Therefore, as long as those of ordinary skill in the art is new without departing from this practicality
All equivalent modifications completed under spirit and technological thought disclosed in type or change, should be wanted by right of the present utility model
Ask and covered.
Claims (5)
1. a kind of constant current flood pump, including pump case, the driving gear being arranged in pump case and driven gear and lid are located at pump case
The bonnet of rear end, it is described after cover and be provided with interconnected valve opening and oil-out, be provided with safety valve in the valve opening, its feature
It is：The valve opening is provided with throttling plectane with the connectivity part envelope of oil-out, and the throttling plectane is provided with multiple throttle orifices,
A fixed column is convexly equipped with the home position of the throttling plectane, the central axis upright of the fixed column is in throttling plectane institute
In plane；The fixed column has a limited impression along excircle depression, and restrictor ring plate and institute are arranged with the limited impression
State and connection is rotated between throttling ring flat-plate and fixed column, the throttling ring flat-plate is provided with and one-to-one No. two section of throttle orifice
Discharge orifice；
Outer peripheral edge on the throttling plectane is provided with one section of arc positioning groove, and a positioning is correspondingly provided with the throttling ring flat-plate
Hole；A screw bolt and nut is also included, location hole, arc are sequentially passed through by bolt between the throttling plectane, throttling ring flat-plate
Shape locating slot is screwed togather and achieved a fixed connection with nut.
2. constant current flood pump according to claim 1, it is characterised in that：The external diameter of the throttling ring flat-plate is slightly less than throttling circle
The external diameter of plate.
3. constant current flood pump according to claim 1, it is characterised in that：The center of circle of the arc positioning groove and throttling plectane
The center of circle overlap.
4. constant current flood pump according to claim 1, it is characterised in that：The throttling plectane center of circle to the throttling ring flat-plate center of circle
Distance be not more than 4cm.
5. constant current flood pump according to claim 1, it is characterised in that：A number throttle orifice, No. two throttle orifices are complete
It is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621115788.1U CN206221228U (en) | 2016-10-12 | 2016-10-12 | A kind of constant current flood pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621115788.1U CN206221228U (en) | 2016-10-12 | 2016-10-12 | A kind of constant current flood pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221228U true CN206221228U (en) | 2017-06-06 |
Family
ID=58783000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621115788.1U Expired - Fee Related CN206221228U (en) | 2016-10-12 | 2016-10-12 | A kind of constant current flood pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221228U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151394A (en) * | 2020-01-02 | 2020-05-15 | 金陵科技学院 | Spraying equipment and spraying method for lamp nano coating |
-
2016
- 2016-10-12 CN CN201621115788.1U patent/CN206221228U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151394A (en) * | 2020-01-02 | 2020-05-15 | 金陵科技学院 | Spraying equipment and spraying method for lamp nano coating |
| CN111151394B (en) * | 2020-01-02 | 2021-04-09 | 金陵科技学院 | Spraying equipment and spraying method for lamp nano coating |
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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: 20170606 Termination date: 20211012 |