CN204827886U - Automatically controlled regulator is used to plunger pump - Google Patents
Automatically controlled regulator is used to plunger pump Download PDFInfo
- Publication number
- CN204827886U CN204827886U CN201520568845.0U CN201520568845U CN204827886U CN 204827886 U CN204827886 U CN 204827886U CN 201520568845 U CN201520568845 U CN 201520568845U CN 204827886 U CN204827886 U CN 204827886U
- Authority
- CN
- China
- Prior art keywords
- valve
- regulator
- spring
- solenoid valve
- plunger
- 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.)
- Active
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model relates to an automatically controlled regulator is used to plunger pump belongs to hydraulic component technical field. It includes regulator assembly, electromagnetism disk seat and solenoid valve, the regulator assembly by the governor body with install PF valve barrel, PF plunger, guiding valve, valve barrel, spring holder, control spring, feedback connecting rod in the governor body, support bush, adjusting spindle and install at the epaxial adjustable screw silk of adjustment, adjustable screw is female forms, electromagnetism disk seat fixed mounting is on the governor body, and the solenoid valve is installed on the electromagnetism disk seat. The utility model has the advantages of being scientific and reasonable in structure, having simplified the regulator structure, having reduced and make the degree of difficulty and cost, reduced exact fit mechanism, improved the regulator reliability, introduced passing the fast signal of telecommunication, improved the response speed of regulator, because the required negative pressure signal of cancellation regulator, energy -conserving effect is obvious.
Description
Technical field
The utility model relates to the automatically controlled regulator of a kind of plunger pump, belongs to hydraulic element technical field of structures.
Background technique
Plunger pump is widely used in engineering machinery field, especially excavation machinery.Domestic its regulator of excavator plunger pump is how relatively independent with plunger pump, the flow of regulable control plunger pump, the change of Output pressure characteristic.The control characteristic of conventional plunger pump has constant voltage output, constant flow output, constant power output, the control of automatically controlled direct proportaion, inverted flux control.Regulator is the brain of plunger pump, controls flow and pressure needed for plunger pump output executing mechanism.
There is following shortcoming in existing regulator:
1. complex structure, manufacture difficulty and cost high.There is more spool and the precision-fit in hole in regulator, proposing higher requirement to manufacturing;
2. reliability is poor.Owing to there is more precision-fit mechanism, regulator contamination level of oil liquid receptance is improved, the probability that breaks down increases;
3. speed of response is slow.After existing regulator obtains feedback signal, be first converted to mechanical mechanism action, be then converted into hydraulic fluid action, then mechanical mechanism action is remained, continue again to be converted into hydraulic fluid action, finally just realize the control to plunger pump, extend the speed of response of plunger pump greatly;
4. energy-saving effect is poor.Existing regulator needs excavator control system to provide the negative pressure signal of certain pressure, and this does not play substantial role to actuator's real work, therefore, causes certain energy dissipation.
Summary of the invention
The purpose of this utility model is just to solve the slow problem of poor reliability, speed of response that prior art exists, a kind of automatically controlled regulator is provided, this regulator simplifies existing controller structure, reduce manufacture difficulty and cost, reduce precision-fit mechanism, improve regulator reliability, fireballing electrical signal is passed because introducing, the speed of response of regulator can being improved, because cancelling negative pressure signal needed for regulator, realizing energy-saving effect.
For achieving the above object, technological scheme that the utility model adopts is as follows:
The automatically controlled regulator of a kind of plunger pump, comprise REG Regulator Assembly, solenoid valve seat 2 and solenoid valve 3, REG Regulator Assembly is by governor body 1 and the PF valve pocket 4, PF plunger 5, guiding valve 6, valve pocket 7, spring seat 8, control spring 9, feedback linkage 10, support bushing 11, the adjustment axle 12 that are arranged in governor body and be arranged on the adjustment screw 13 adjusted on axle, adjusting nut 14 forms; Solenoid valve seat 2 is fixedly mounted on governor body 1, and solenoid valve 3 is arranged on solenoid valve seat 2.
PF valve pocket 4 cylindrical in described REG Regulator Assembly respectively with governor body 1, solenoid valve seat 2 inner hole, left and right sides is spacing by hole end surface in hole end surface, governor body in solenoid valve seat 2 respectively; It is inner that PF plunger 5 is arranged on PF valve pocket 4, for being slidably matched, connecting on the left of PF plunger 5 with output oil port 16, contacting on the right side of PF plunger 5 with guiding valve 6 left end face; Valve pocket 7 is arranged in governor body hole, is articulated with B point with feedback linkage; It is inner that guiding valve 6 is arranged on valve pocket 7, left side and PF plunger 5 end contact, right side conical surface endoporus and spring seat 8 bulb tangent; On the left of spring seat 8 bulb and guiding valve 6 conical surface tangent, its right end face and spring contact, by spring force effect; Contact with spring seat 8 on the left of control spring 9, after regulator assembles, control spring 9 is in compressive state, produces thrust to the left to spring seat 8, with adjustment axle 12 end contact on the right side of control spring 9; With control spring 9 end contact on the left of adjustment axle 12, and by spring thrust effect, right side contacts with adjustment screw 13 left side; Contact with adjustment axle 12 on the left of adjustment screw 13, right side and adjusting nut 14 are for being threaded.
Described feedback linkage 10 and support bushing 11, valve pocket 7 are hinged respectively at some A, B, and feedback linkage left surface contacts with governor body, right flank and support bushing end contact; Support bushing 11 is connected with thread forms with governor body, and is articulated with an A with feedback linkage 10; Guiding valve 6, valve pocket 7 form a set of three-position three-way valve; Spring seat 8, control spring 9, adjustment axle 12, adjustment screw 13, adjusting nut 14 cooperatively interact and have exported tune point for adjusting regulator; Valve pocket oil outlet D, valve pocket oil outlet E can close by guiding valve 6 step C.
Described solenoid valve seat 2 is the carrier of oil circuit control, and solenoid valve seat is provided with mounting hole for installing solenoid valve 3, and is provided with input hydraulic fluid port 15, output oil port 16, drain tap 17.
The utility model with the use of plunger pump comprise servopiston assembly 18, with feedback linkage 10 be articulated with pin F place, separately have the large end 19 of servopiston, servopiston small end 20.The large end 19 of servopiston communicates with guiding valve 6 oil outlet D, E, and servopiston small end 20 communicates with plunger pump oil outlet high pressure oil.
Utility model works principle is as follows:
By PF plunger 5 thrust on the left of guiding valve 6, communicate with solenoid valve 3 output oil port 16 on the left of PF plunger 5, by hydraulic thrust effect, controlled spring 9 elastic force effect on the right side of guiding valve 6.Solenoid valve 3 output oil port 16 pressure is directly proportional to solenoid valve 3 input current.Original state, positive flow plunger pump is in minimum discharge, and solenoid valve 3 input current is 0mA, and control spring 9 has certain decrement, and on the right side of guiding valve 6, elastic force is greater than the hydraulic coupling that left side acts on PF plunger 5.Now valve pocket 7 oil outlet D, E close by guiding valve 6 step C, and servopiston large end 19 hydraulic oil active force is equal with servopiston small end 20 hydraulic oil active force, and servopiston 18 does not move.
Electric current is adjusted when solenoid valve 3 input current has increased to, on the left of PF plunger 5, hydraulic coupling is greater than control spring 9 elastic force on the right side of guiding valve 6, PF plunger 5 promotes guiding valve 6 and moves to right, valve pocket 7 oil outlet D is communicated with low pressure hydraulic fluid port, because valve pocket 7 oil outlet D communicates with the large end 19 of servopiston, and the off-load of such servopiston large end 19 pressure oil, servopiston small end 20 active force is greater than servopiston large end 19 active force, servopiston 18 moves to left, and make swashplate angle become large, plunger pump discharge capacity becomes large.When solenoid valve 3 input current increases to maximum current, on the left of guiding valve 6, new balance set up by hydraulic coupling and right side control spring 9 spring force, stops mobile.While servopiston assembly 18 moves to left, feedback linkage 10 for rotating shaft rotates clockwise with fulcrum A, promotes valve pocket 7 and moves to right, until valve pocket 7 oil outlet D, E close by guiding valve 6 step C.Servopiston assembly 18 stops mobile.
When solenoid valve 3 input current reduces, on the right side of guiding valve 6, control spring 9 elastic force is greater than left side output oil port 16 hydraulic coupling, guiding valve 6 moves to left, the fuel-displaced E of valve pocket 7 and high pressure hydraulic fluid port F connects, servopiston large end 19 thrust is greater than servopiston small end 20 thrust, servopiston assembly 18 moves right, and swashplate angle diminishes, and plunger pump discharge capacity diminishes.While servopiston piston 18 moves to right, feedback linkage 10 for rotating shaft rotates counterclockwise with fulcrum A, promotes valve pocket 7 and moves to left, until valve pocket oil outlet D, E close by guiding valve 6 step C.Servopiston assembly 18 stops mobile.
The utility model is scientific and reasonable for structure, simplify controller structure, reduce manufacture difficulty and cost, decrease precision-fit mechanism, improve regulator reliability, introduce and pass fireballing electrical signal, improve the speed of response of regulator, owing to cancelling negative pressure signal needed for regulator, energy-saving effect is obvious.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional drawing that the utility model and other assemblies are installed;
Fig. 3 is that the A of Fig. 2 is to sectional view;
Fig. 4 is part design of part schematic diagram in REG Regulator Assembly;
Fig. 5 is hydraulic schematic diagram of the present utility model.
Embodiment
The automatically controlled regulator of plunger pump of the present embodiment, referring to figs. 1 through Fig. 5, comprise REG Regulator Assembly, solenoid valve seat 2 and solenoid valve 3, REG Regulator Assembly is by governor body 1 and the PF valve pocket 4, PF plunger 5, guiding valve 6, valve pocket 7, spring seat 8, control spring 9, feedback linkage 10, support bushing 11, the adjustment axle 12 that are arranged in governor body and be arranged on the adjustment screw 13 adjusted on axle, adjusting nut 14 forms; Solenoid valve seat 2 is fixedly mounted on governor body 1, and solenoid valve 3 is arranged on solenoid valve seat 2.
PF valve pocket 4 cylindrical in REG Regulator Assembly respectively with governor body 1, solenoid valve seat 2 inner hole, left and right sides is spacing by hole end surface in hole end surface, governor body in solenoid valve seat 2 respectively; It is inner that PF plunger 5 is arranged on PF valve pocket 4, for being slidably matched, connecting on the left of PF plunger 5 with output oil port 16, contacting on the right side of PF plunger 5 with guiding valve 6 left end face; Valve pocket 7 is arranged in governor body hole, is articulated with B point with feedback linkage; It is inner that guiding valve 6 is arranged on valve pocket 7, left side and PF plunger 5 end contact, right side conical surface endoporus and spring seat 8 bulb tangent; On the left of spring seat 8 bulb and guiding valve 6 conical surface tangent, its right end face and spring contact, by spring force effect; Contact with spring seat 8 on the left of control spring 9, after regulator assembles, control spring 9 is in compressive state, produces thrust to the left to spring seat 8, with adjustment axle 12 end contact on the right side of control spring 9; With control spring 9 end contact on the left of adjustment axle 12, and by spring thrust effect, right side contacts with adjustment screw 13 left side; Contact with adjustment axle 12 on the left of adjustment screw 13, right side and adjusting nut 14 are for being threaded.
Feedback linkage 10 and support bushing 11, valve pocket 7 are hinged respectively at some A, B, and feedback linkage left surface contacts with governor body, right flank and support bushing end contact; Support bushing 11 is connected with thread forms with governor body, and is articulated with an A with feedback linkage 10; Guiding valve 6, valve pocket 7 form a set of three-position three-way valve; Spring seat 8, control spring 9, adjustment axle 12, adjustment screw 13, adjusting nut 14 cooperatively interact and have exported tune point for adjusting regulator; Valve pocket oil outlet D, valve pocket oil outlet E can close by guiding valve 6 step C.
Solenoid valve seat 2 is the carrier of oil circuit control, and solenoid valve seat is provided with mounting hole for installing solenoid valve 3, and is provided with input hydraulic fluid port 15, output oil port 16, drain tap 17.
The present embodiment with the use of plunger pump comprise servopiston assembly 18, with feedback linkage 10 be articulated with pin F place, separately have the large end 19 of servopiston, servopiston small end 20.The large end 19 of servopiston communicates with guiding valve 6 oil outlet D, E, and servopiston small end 20 communicates with plunger pump oil outlet high pressure oil.
Its working principle is as follows:
By PF plunger 5 thrust on the left of guiding valve 6, communicate with solenoid valve 3 output oil port 16 on the left of PF plunger 5, by hydraulic thrust effect, controlled spring 9 elastic force effect on the right side of guiding valve 6.Solenoid valve 3 output oil port 16 pressure is directly proportional to solenoid valve 3 input current.Original state, positive flow plunger pump is in minimum discharge, and solenoid valve 3 input current is 0mA, and control spring 9 has certain decrement, and on the right side of guiding valve 6, elastic force is greater than the hydraulic coupling that left side acts on PF plunger 5.Now valve pocket 7 oil outlet D, E close by guiding valve 6 step C, and servopiston large end 19 hydraulic oil active force is equal with servopiston small end 20 hydraulic oil active force, and servopiston 18 does not move.
Electric current is adjusted when solenoid valve 3 input current has increased to, on the left of PF plunger 5, hydraulic coupling is greater than control spring 9 elastic force on the right side of guiding valve 6, PF plunger 5 promotes guiding valve 6 and moves to right, valve pocket 7 oil outlet D is communicated with low pressure hydraulic fluid port, because valve pocket 7 oil outlet D communicates with the large end 19 of servopiston, and the off-load of such servopiston large end 19 pressure oil, servopiston small end 20 active force is greater than servopiston large end 19 active force, servopiston 18 moves to left, and make swashplate angle become large, plunger pump discharge capacity becomes large.When solenoid valve 3 input current increases to maximum current, on the left of guiding valve 6, new balance set up by hydraulic coupling and right side control spring 9 spring force, stops mobile.While servopiston assembly 18 moves to left, feedback linkage 10 for rotating shaft rotates clockwise with fulcrum A, promotes valve pocket 7 and moves to right, until valve pocket 7 oil outlet D, E close by guiding valve 6 step C.Servopiston assembly 18 stops mobile.
When solenoid valve 3 input current reduces, on the right side of guiding valve 6, control spring 9 elastic force is greater than left side output oil port 16 hydraulic coupling, guiding valve 6 moves to left, the fuel-displaced E of valve pocket 7 and high pressure hydraulic fluid port F connects, servopiston large end 19 thrust is greater than servopiston small end 20 thrust, servopiston assembly 18 moves right, and swashplate angle diminishes, and plunger pump discharge capacity diminishes.While servopiston piston 18 moves to right, feedback linkage 10 for rotating shaft rotates counterclockwise with fulcrum A, promotes valve pocket 7 and moves to left, until valve pocket oil outlet D, E close by guiding valve 6 step C.Servopiston assembly 18 stops mobile.
Protection domain of the present utility model is not limited to above given embodiment, and every all technological schemes achieved by thinking of the present utility model, all belong to protection domain of the present utility model.
Claims (4)
1. the automatically controlled regulator of plunger pump, it is characterized in that comprising REG Regulator Assembly, solenoid valve seat (2) and solenoid valve (3), REG Regulator Assembly is by governor body (1) and the PF valve pocket (4), PF plunger (5), guiding valve (6), valve pocket (7), spring seat (8), control spring (9), feedback linkage (10), support bushing (11), adjustment axle (12) that are arranged in governor body and be arranged on the adjustment screw (13) adjusted on axle, adjusting nut (14) forms; Solenoid valve seat (2) is fixedly mounted on governor body (1), and solenoid valve (3) is arranged on solenoid valve seat (2).
2. according to the automatically controlled regulator of a kind of plunger pump according to claim 1, it is characterized in that PF valve pocket (4) cylindrical in described REG Regulator Assembly respectively with governor body (1), solenoid valve seat (2) inner hole, left and right sides is spacing by hole end surface in solenoid valve seat (2) interior hole end surface, governor body respectively; It is inner that PF plunger (5) is arranged on PF valve pocket (4), and for being slidably matched, PF plunger (5) left side is connected with output oil port (16), and PF plunger (5) right side contacts with guiding valve (6) left end face; Valve pocket (7) is arranged in governor body hole, is articulated with B point with feedback linkage; It is inner that guiding valve (6) is arranged on valve pocket (7), left side and PF plunger (5) end contact, right side conical surface endoporus and spring seat (8) bulb tangent; Spring seat (8) left side bulb and guiding valve (6) conical surface tangent, its right end face and spring contact, by spring force effect; Control spring (9) left side contacts with spring seat (8), when control spring (9) is in compressive state, produces thrust to the left to spring seat (8), control spring (9) right side and adjustment axle (12) end contact; Adjustment axle (12) left side and control spring (9) end contact, and by spring thrust effect, right side contacts with adjustment screw (13) left side; Adjustment screw (13) left side contacts with adjustment axle (12), and right side and adjusting nut (14) are for being threaded.
3. according to the automatically controlled regulator of a kind of plunger pump described in claim 1 or 2, it is characterized in that described feedback linkage (10) and support bushing (11), valve pocket (7) are hinged respectively at A point, B point, feedback linkage left surface contacts with governor body, right flank and support bushing end contact; Support bushing (11) is connected with thread forms with governor body, and is articulated with A point with feedback linkage (10); Guiding valve (6), valve pocket (7) form a set of three-position three-way valve; Spring seat (8), control spring (9), adjustment axle (12), adjustment screw (13), adjusting nut (14) cooperatively interact for adjust regulator has exported tune point; Valve pocket oil outlet D, valve pocket oil outlet E can close by guiding valve (6) step C.
4. according to the automatically controlled regulator of a kind of plunger pump described in claim 1 or 2, it is characterized in that described solenoid valve seat (2) is provided with mounting hole, for installing solenoid valve (3), and being provided with input hydraulic fluid port (15), output oil port (16), drain tap (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568845.0U CN204827886U (en) | 2015-08-01 | 2015-08-01 | Automatically controlled regulator is used to plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568845.0U CN204827886U (en) | 2015-08-01 | 2015-08-01 | Automatically controlled regulator is used to plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827886U true CN204827886U (en) | 2015-12-02 |
Family
ID=54685494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520568845.0U Active CN204827886U (en) | 2015-08-01 | 2015-08-01 | Automatically controlled regulator is used to plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827886U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425835A (en) * | 2018-03-19 | 2018-08-21 | 安徽博流体传动股份有限公司 | A kind of electric-controlled hydraulic plunger pump |
-
2015
- 2015-08-01 CN CN201520568845.0U patent/CN204827886U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425835A (en) * | 2018-03-19 | 2018-08-21 | 安徽博流体传动股份有限公司 | A kind of electric-controlled hydraulic plunger pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204099146U (en) | Hydraulic variable displacement pump | |
| CN201068843Y (en) | Electrohydraulic load pressure flow control variable plunger pump | |
| CN203926201U (en) | Load-sensitive pressure cut off control valve | |
| CN203516249U (en) | Load-sensitive feedback control system for top drive drilling machine hydraulic pump station | |
| CN201277299Y (en) | Damping unloading valve of vibration damper | |
| CN204827886U (en) | Automatically controlled regulator is used to plunger pump | |
| CN106762926B (en) | The electrohydraulic controlling mechanism of pressure-adjustable and off-load | |
| CN104197046A (en) | Multi-way valve with unloading protection function | |
| CN105134538A (en) | Variable control piston of variable hydraulic pump and motor and application thereof | |
| CN106640798A (en) | Electro-hydraulic control mechanism capable of adjusting pressure and unloading | |
| CN106194680A (en) | The axial plunger pump installation of a kind of high accuracy electric proportional control and control method | |
| CN106438260A (en) | Electric proportional power control mechanism and control mode of hydraulic axial plunger pump | |
| CN203532367U (en) | Multi-gear power control variable displacement piston pump | |
| CN103775438A (en) | Overload protective valve and overload valve comprising same | |
| CN205918570U (en) | Axial plunger pump device of high accuracy electric proportional control | |
| CN204458236U (en) | A kind of plunger piston variable hydraulic pump | |
| CN204300380U (en) | Magnetorheological pressure control valve | |
| CN204851560U (en) | Positive flow control electric proportional pump | |
| CN203641146U (en) | Direct-acting hydraulic threaded cartridge buffering overflow valve | |
| CN214118617U (en) | Variable pump control valve | |
| CN203272897U (en) | Small water ring vacuum pump suction inlet check valve | |
| CN205503601U (en) | Hydraulic motor surmounts load automatic re -setting valve | |
| CN103511369A (en) | Multi-gear power control variable piston pump | |
| CN208719483U (en) | A kind of novel compensation valve arrangement | |
| CN108916390A (en) | Different pipeline water equipment are adjusted in one kind |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |