CN109114254A - A kind of valve group to work in series and parallel for high-low pump and multi-way valve - Google Patents
A kind of valve group to work in series and parallel for high-low pump and multi-way valve Download PDFInfo
- Publication number
- CN109114254A CN109114254A CN201811096001.5A CN201811096001A CN109114254A CN 109114254 A CN109114254 A CN 109114254A CN 201811096001 A CN201811096001 A CN 201811096001A CN 109114254 A CN109114254 A CN 109114254A
- Authority
- CN
- China
- Prior art keywords
- oil
- input channel
- valve
- oil input
- pontic
- 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
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 238000005242 forging Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
The invention discloses a kind of valve groups and multi-way valve for the work of high-low pump two-in-parallel, the valve group includes five six-way valve bodies and is fixedly arranged on the oil returns of the left and right sides of five six-way valve bodies and crosses pontic and check valve crosses pontic, wherein, in valve rod when position the first oil input channel P1 and the second oil input channel P2 to T1 mouthfuls and T2 mouthfuls of oil return unloadings；Valve rod commutate forward one when, the first oil input channel P1 is individually to executing agency's fuel feeding and the second oil input channel P2 to T1 mouthfuls of oil return unloadings；Valve rod commutate forward two when, from the second oil input channel P2 and the first oil input channel P1 behind third oil input channel interflow to executing agency's fuel feeding.This valve group is adapted to high-low pump and works in series and parallel, at light load, Dual-pump flow-converging；And when overloaded, single oil pump feed.Energy consumption can be reduced in this way, and the motor power (output) needed is also low, limits investment cost.
Description
Technical field
The present invention relates to a kind of valve group to work in series and parallel for high-low pump and with the multi-way valve of the valve group.
Background technique
In many applications, such as forging machine, press, injection molding machine, truck-mounted crane, it was noticed that needing big stream when F.F.
Amount, but load is not high, and the flow very little that high load needs.
Currently, the hydraulic valve type with Dual-pump flow-converging function is more, but it is capable of the dedicated valve group of the demand in market
On rarely have very much and see.
Therefore, it is necessary to provide in Dual-pump flow-converging at light load and in the dedicated of the combination function of single oil pump feed when overloaded
Valve group.
Summary of the invention
The purpose of the present invention is to provide a kind of valve groups to work in series and parallel for high-low pump, independent when overloaded to realize
The combination function of fuel feeding, at light load Dual-pump flow-converging.
The object of the invention is also to provide a kind of multi-way valves with above-mentioned valve group.
For this purpose, one aspect of the present invention provides a kind of valve group for the work of high-low pump two-in-parallel, which is characterized in that packet
The oil return for including five six-way valve bodies and being fixedly arranged on the left and right sides of five six-way valve bodies crosses pontic and check valve crosses pontic.
Wherein, five six-way valve bodies are provided with five six-way valve bars, the runner PT in the middle part of valve rod axial direction, in valve
About runner PP two runners PT symmetrically arranged on the left and the right, two first by-pass flow channels, two points of oil ducts, runner A and runner on bar is axial
B, the first back oil road and the second back oil road, five six-way valve bodies are additionally provided with third oil input channel, and the third oil input channel is extremely
The runner of two points of oil ducts is equipped with the first check valve.
Wherein, the oil return crosses pontic and is provided with the first back oil road, the T1 communicated with the first back oil road mouth, the second oil return
Road and the T2 mouth being connected to second back oil road, the oil return cross pontic and are additionally provided with the second oil input channel P2, second oil inlet
Road P2 is connected to the first bypass flow channel.
Wherein, the check valve cross the first oil input channel P1 that pontic is provided with third oil input channel, is connected to third oil input channel,
First back oil road, the second back oil road, the second bypass flow channel being connected to the first back oil road, the first by-pass flow channel and in third
The second one-way valve being arranged on oil input channel to the runner of the first bypass flow channel, wherein the second oil input channel P2 and the runner
PP is communicated, and the second bypass flow channel that the runner PT and the check valve of five six-way valve bodies cross pontic communicates, wherein in valve
In bar when position the first oil input channel P1 and the second oil input channel P2 to T1 mouthfuls and T2 mouthfuls of oil return unloadings；Valve rod commutate forward one when,
First oil input channel is individually to executing agency's fuel feeding and the second oil input channel to T1 mouthfuls of oil return unloadings；Valve rod commutate forward two when,
From the second oil input channel and the first oil input channel behind third oil input channel interflow to executing agency's fuel feeding.
Further, above-mentioned valve group is used for forging machine, press, injection molding machine or truck-mounted crane.
According to another aspect of the present invention, provide a kind of multi-way valve, including be sequentially connected in series the first oil inlet body, first change
To valve body, check valve cross pontic, pontic is crossed in five six-way valve bodies, oil return, the second commutation valve body and the second oil inlet body, wherein
The oil return cross pontic, five six-way valve bodies, check valve cross pontic constitute according to it is described above for high-low pump string simultaneously
Join the valve group of work, wherein the first oil inlet body has the P1 mouth of the first pump of connection, which is equipped with first and overflows
Valve is flowed, the second oil inlet body has the P2 mouth of the second pump of connection, which is equipped with the second overflow valve.
This valve group may be implemented high-low pump and work in series and parallel, at light load, Dual-pump flow-converging；And when overloaded, single pump supplies
Oil.Energy consumption can be reduced in this way, and the motor power (output) needed is also low, limits investment cost.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of five six-way valve bodies of the valve group according to the present invention to work in series and parallel for high-low pump
Figure, wherein valve rod is in middle position；
Fig. 2 is that the structural representation of pontic is crossed in the oil return of the valve group according to the present invention to work in series and parallel for high-low pump
Figure；
Fig. 3 is that the check valve of the valve group according to the present invention to work in series and parallel for high-low pump crosses the structural representation of pontic
Figure；
Fig. 4 is the structural representation of five six-way valve bodies of the valve group according to the present invention to work in series and parallel for high-low pump
Figure, wherein valve rod commutates forward one；
Fig. 5 is the structural representation of five six-way valve bodies of the valve group according to the present invention to work in series and parallel for high-low pump
Figure, wherein valve rod commutates forward two；
Fig. 6 shows the hydraulic schematic diagram of the valve group according to the present invention to work in series and parallel for high-low pump；
Fig. 7 is the overlooking structure diagram of multi-way valve according to the present invention；And
Fig. 8 is the side structure schematic view of multi-way valve according to the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In the present invention, identical oil channel structures name such as oil duct, runner refer to the oil channel structures communicated, example in different valve bodies
The first bypass flow channel in the first bypass flow channel and five six-way valve bodies crossed on pontic such as oil return is the oil channel structures communicated.
Fig. 1 to Fig. 8 is shown according to some embodiments of the present invention.
In conjunction with referring to figs. 1 to Fig. 6, the valve group to work in series and parallel for high-low pump of the invention includes five six-way valve bodies
Pontic 20 is crossed in oil return of the 10 fixed configurations in the left and right sides of five six-way valve bodies and check valve crosses pontic 30.
Five six-way valve bodies 10, as shown in Figure 1, it is provided with five six-way valve bars 11, the stream positioned at the axial middle part of valve rod
Road 12 (being also denoted as runner PP) (is also denoted as runner about runner PP two runner 13 symmetrically arranged on the left and the right upwards in stem shaft
PT), two first by-pass flow channels 14 (being denoted as the first bypass flow channel and the second bypass flow channel), two points of oil ducts 15, two platform flow channels 16
(being also denoted as runner A and runner B), two back oil roads 17 (being also denoted as the first back oil road and the second back oil road), five six-way valves
Body is additionally provided with third oil input channel 18, and the runner of described 18 to two points of oil ducts of third oil input channel 15 is equipped with the first check valve 19.
As shown in Fig. 2, the T1 mouth 22 that pontic 20 is provided with the first back oil road 21, communicates with the first back oil road, are crossed in oil return
Two back oil roads 23 and the T2 mouth 24 being connected to second back oil road, the oil return cross pontic and are additionally provided with the second oil input channel 25
(being also denoted as oil input channel P2), the second oil input channel P2 are connected to the first bypass flow channel 26.
As shown in figure 3, check valve, which crosses pontic 30, is provided with the first oil input channel 31 (being also denoted as oil input channel P1) and the first oil inlet
Third oil input channel 32, the first back oil road 33, the second back oil road 34, the second bypass flow channel being connected to the first back oil road of road connection
35, the first by-pass flow channel 36 and the second one-way valve being arranged on the runner of 32 to the first bypass flow channel 36 of third oil input channel
37。
Wherein, the second oil input channel P2 and the runner PP are communicated, and the runner PT and the second bypass flow channel communicate.
Wherein, valve rod effect in commutation is as follows: the first oil input channel P1 and the second oil input channel P2 is to T1 when the position in valve rod
Mouth and T2 mouthfuls of oil return unloadings；Valve rod commutate forward one when, the first oil input channel is individually to executing agency's fuel feeding and the second oil inlet
Road is to T1 mouthfuls of oil return unloadings；Valve rod commutate forward two when, closed by the second oil input channel and the first oil input channel in third oil input channel
To executing agency's fuel feeding after stream.
In conjunction with referring to Fig.1 with Fig. 6, middle position double pump off-load, realization open center loop, when all actuators do not work,
The flow come from hydraulic power source can pass through reversal valve, lead to oil return with the lower pressure loss, due to there is flow waiting for always,
Therefore there can be faster response characteristic.Working principle: valve rod is in middle position, and the oil liquid of the first pump passes sequentially through the first oil inlet
Road, third oil input channel, the first check valve, the first back oil road and the second back oil road, from T1, T2 mouthfuls of oil returns；Second pump oil liquid according to
It is secondary to pass through the second oil input channel, runner PP, runner PT, the second bypass flow channel, the first back oil road, from T1 mouthfuls of oil returns.
As shown in figure 4, single oil pump feed, for realizing heavy-duty low-speed.Working principle: valve rod commutates forward one, the first pump
Oil liquid pass sequentially through the first oil input channel, third oil input channel, the first check valve, runner A, from A mouthful of work to executing agency's fuel feeding.
The oil liquid of second pump passes sequentially through the second oil input channel, runner PP, runner PT, the second bypass flow channel, the first back oil road, returns from T1 mouthfuls
Oil.
As shown in figure 5, Dual-pump flow-converging, for realizing underloading high speed.Working principle: valve rod commutates forward two, the first pump
Oil liquid pass sequentially through the first oil input channel, third oil input channel, the first check valve, runner A；The oil liquid of second pump passes sequentially through second
Oil input channel, the first bypass flow channel, second one-way valve to third oil input channel 3, with the first pump interflow fuel feeding.
As shown in fig. 7, multi-way valve of the invention includes the first oil inlet body 50, first commutation being cascaded by bolt
Valve body 40, check valve cross 30, five six-way valve bodies 10 of pontic, the commutation valve body 60 of pontic 20, second and the second oil inlet are crossed in oil return
Body 70.Wherein, oil return crosses pontic, five six-way valve bodies, check valve and crosses the valve that pontic composition works in series and parallel for high-low pump
Group.Wherein, the first pump of P1 mouth connection of the first oil inlet body, the first oil inlet body are equipped with the first overflow valve, the second oil inlet body
P2 mouthfuls of the second pumps of connection, the second oil inlet body are equipped with the second overflow valve.
In multi-way valve of the invention, the first commutation valve body is by the first independent fuel feeding of pump, and the second commutation valve body is by the second pump
Independent fuel feeding, the series-parallel work that five six-way valve bodies of valve group pump for realizing the first pump and second.
It should be pointed out that in other embodiments of the invention, above-mentioned valve group can also be with valve block/valve of other function
Body combination.The end of the valve rod of five six-way valve groups is provided with flexible restoring organ, returns back to middle position for valve rod.
The realization high-low pump of this multi-way valve works in series and parallel, at light load, Dual-pump flow-converging；And when overloaded, single pump supplies
Oil.Energy consumption can be reduced in this way, and the motor power (output) needed is also low, limits investment cost.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of valve group for the work of high-low pump two-in-parallel, which is characterized in that including five six-way valve bodies and fixed configurations
Pontic is crossed in oil return in the left and right sides of five six-way valve bodies and check valve crosses pontic, wherein
Five six-way valve bodies are provided with five six-way valve bars, the runner PT, upward in stem shaft positioned at the axial middle part of valve rod
About runner PP two runners PT symmetrically arranged on the left and the right, two first by-pass flow channels, two points of oil ducts, runner A and runner B, first time
Oil duct and the second back oil road, five six-way valve bodies are additionally provided with third oil input channel, the third oil input channel to two points of oil ducts
Runner be equipped with the first check valve,
The oil return cross pontic be provided with the first back oil road, the T1 communicated with the first back oil road mouth, the second back oil road and with it is described
The T2 mouth of second back oil road connection, the oil return cross pontic and are additionally provided with the second oil input channel P2, the second oil input channel P2 and first
Bypass flow channel connection,
The check valve crosses the first oil input channel P1, the first oil return that pontic is provided with third oil input channel, is connected to third oil input channel
Road, the second back oil road, the second bypass flow channel being connected to the first back oil road, the first by-pass flow channel and third oil input channel extremely
The second one-way valve being arranged on the runner of first bypass flow channel,
Wherein, the second oil input channel P2 and the runner PP are communicated, the runner PT of five six-way valve bodies and described unidirectional
The second bypass flow channel that valve crosses pontic communicates,
Wherein, in valve rod when position the first oil input channel P1 and the second oil input channel P2 to T1 mouthfuls and T2 mouthfuls of oil return unloadings；Valve rod to
At preceding commutation one, the first oil input channel is individually to executing agency's fuel feeding and the second oil input channel to T1 mouthfuls of oil return unloadings；Valve rod to
At preceding commutation two, from the second oil input channel and the first oil input channel behind third oil input channel interflow to executing agency's fuel feeding.
2. the valve group according to claim 1 for the work of high-low pump two-in-parallel, which is characterized in that for forging machine, pressure
Machine, injection molding machine or truck-mounted crane.
3. a kind of multi-way valve, which is characterized in that the first oil inlet body, the first commutation valve body, check valve including being sequentially connected in series are passed a bridge
Body, five six-way valve bodies, oil return cross pontic, the second commutation valve body and the second oil inlet body, wherein pontic, five six are crossed in oil return
Port valve body, check valve cross pontic and constitute the valve group according to claim 1 to work in series and parallel for high-low pump, wherein
The first oil inlet body has the P1 mouth of the first pump of connection, which is equipped with the first overflow valve, second oil inlet
Body has the P2 mouth of the second pump of connection, which is equipped with the second overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096001.5A CN109114254B (en) | 2018-09-19 | 2018-09-19 | Valve group and multi-way valve for serial-parallel operation of high-pressure pump and low-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811096001.5A CN109114254B (en) | 2018-09-19 | 2018-09-19 | Valve group and multi-way valve for serial-parallel operation of high-pressure pump and low-pressure pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109114254A true CN109114254A (en) | 2019-01-01 |
| CN109114254B CN109114254B (en) | 2024-01-19 |
Family
ID=64859805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811096001.5A Active CN109114254B (en) | 2018-09-19 | 2018-09-19 | Valve group and multi-way valve for serial-parallel operation of high-pressure pump and low-pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114254B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372060A (en) * | 1992-12-22 | 1994-12-13 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic valve assembly |
| CN2844532Y (en) * | 2005-07-19 | 2006-12-06 | 四川长江液压件有限责任公司 | Multi-path switching valve of hydraulic crane |
| CN101373027A (en) * | 2008-08-08 | 2009-02-25 | 锦州市力特缸泵阀液压制造有限公司 | Multi-way change valve |
| CN102674210A (en) * | 2012-05-14 | 2012-09-19 | 浙江海宏液压科技股份有限公司 | Lift converging multiway valve |
| CN203272299U (en) * | 2013-03-20 | 2013-11-06 | 锦州市力特缸泵阀液压制造有限公司 | Double-pump two-way confluence multiple directional control valve |
| US20150159678A1 (en) * | 2012-07-19 | 2015-06-11 | Volvo Construction Equipment Ab | Flow control valve for construction machinery |
| CN205745444U (en) * | 2016-05-17 | 2016-11-30 | 华南理工大学 | A kind of valve |
| CN205823776U (en) * | 2016-07-21 | 2016-12-21 | 泸州众大科技液压件有限公司 | A kind of Multi-path electricity hydraulic control valve using oil return pressure reduction to make pilot control |
| CN209213079U (en) * | 2018-09-19 | 2019-08-06 | 合肥长源液压股份有限公司 | A kind of valve group to work in series and parallel for high-low pump and multi-way valve |
-
2018
- 2018-09-19 CN CN201811096001.5A patent/CN109114254B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5372060A (en) * | 1992-12-22 | 1994-12-13 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic valve assembly |
| CN2844532Y (en) * | 2005-07-19 | 2006-12-06 | 四川长江液压件有限责任公司 | Multi-path switching valve of hydraulic crane |
| CN101373027A (en) * | 2008-08-08 | 2009-02-25 | 锦州市力特缸泵阀液压制造有限公司 | Multi-way change valve |
| CN102674210A (en) * | 2012-05-14 | 2012-09-19 | 浙江海宏液压科技股份有限公司 | Lift converging multiway valve |
| US20150159678A1 (en) * | 2012-07-19 | 2015-06-11 | Volvo Construction Equipment Ab | Flow control valve for construction machinery |
| CN203272299U (en) * | 2013-03-20 | 2013-11-06 | 锦州市力特缸泵阀液压制造有限公司 | Double-pump two-way confluence multiple directional control valve |
| CN205745444U (en) * | 2016-05-17 | 2016-11-30 | 华南理工大学 | A kind of valve |
| CN205823776U (en) * | 2016-07-21 | 2016-12-21 | 泸州众大科技液压件有限公司 | A kind of Multi-path electricity hydraulic control valve using oil return pressure reduction to make pilot control |
| CN209213079U (en) * | 2018-09-19 | 2019-08-06 | 合肥长源液压股份有限公司 | A kind of valve group to work in series and parallel for high-low pump and multi-way valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109114254B (en) | 2024-01-19 |
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