CN212155292U - Dual-output hydraulic system with flow regulation function - Google Patents
Dual-output hydraulic system with flow regulation function Download PDFInfo
- Publication number
- CN212155292U CN212155292U CN202020478283.1U CN202020478283U CN212155292U CN 212155292 U CN212155292 U CN 212155292U CN 202020478283 U CN202020478283 U CN 202020478283U CN 212155292 U CN212155292 U CN 212155292U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- pipeline
- way
- correspondingly communicated
- 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
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
A dual-output hydraulic system with a flow regulation function comprises an oil tank, a hydraulic pump, a one-way valve, a reversing valve A, a three-way flow valve and a reversing valve B; the oil tank is correspondingly communicated with the hydraulic pump, the hydraulic pump is correspondingly communicated with the one-way valve, the one-way valve is correspondingly communicated with an oil inlet of the reversing valve A through a pipeline A, an oil return port of the reversing valve A is correspondingly communicated with a first oil return port of the oil tank, and two oil through ports of the reversing valve A are correspondingly communicated with an oil inlet of the first actuating mechanism; the oil inlet of the three-way flow valve corresponds to be communicated with the pipe body of the pipeline A, the three-way flow valve corresponds to be communicated with the oil tank through the pipeline B, the three-way flow valve corresponds to be communicated with the reversing valve B, the oil return port of the reversing valve B corresponds to be communicated with the pipe body of the pipeline B, two oil through ports of the reversing valve B correspond to be communicated with the oil inlet of the second actuating mechanism respectively, and the device can output hydraulic oil with different flow rates to two output branches.
Description
Technical Field
The utility model belongs to the technical field of flow control technique and specifically relates to a dual output hydraulic system with flow control function is related to.
Background
As is known, a dual-output hydraulic system generally refers to a hydraulic system having two actuators, and the two actuators do not work at the same time, but the two actuators require different hydraulic oil amounts, a first actuator requires high-flow hydraulic oil, and a second actuator requires small-flow hydraulic oil, so that a flow adjusting mechanism is required to adjust the flow of the hydraulic oil in the hydraulic system, and a conventional flow mechanism utilizes a throttle valve to adjust and a multi-way valve to adjust, wherein the throttle valve adjusts the flow flowing out from the actuators by changing the size of the through-flow cross-sectional area of a throttle valve, but the throttle valve adjustment causes serious energy loss, large heat generation, and limited adjustable flow in the hydraulic system; although the flow of the output hydraulic oil can be well controlled by using the multi-way valve, the multi-way valve has high adjustment cost, complex system and high requirement on an electrical system; therefore, in summary, a dual-output hydraulic system capable of outputting hydraulic oil with different flow rates is needed in the market.
Disclosure of Invention
In order to overcome not enough in the background art, the utility model discloses a dual output hydraulic system with flow control function.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a dual-output hydraulic system with a flow regulation function comprises an oil tank, a hydraulic pump, a one-way valve, a three-position four-way electromagnetic directional valve A, a three-way flow valve and a three-position four-way electromagnetic directional valve B; the oil outlet of the oil tank is correspondingly communicated with the oil inlet of the hydraulic pump through a pipeline, the oil outlet of the hydraulic pump is correspondingly communicated with the input port of the one-way valve through a pipeline, the output port of the one-way valve is correspondingly communicated with the oil inlet of the three-position four-way electromagnetic reversing valve A through a pipeline A, the oil return port of the three-position four-way electromagnetic reversing valve A is correspondingly communicated with the first oil return port of the oil tank through a pipeline, and two oil through ports of the three-position four-way electromagnetic reversing valve A are correspondingly communicated with the oil inlet; an oil inlet of the three-way flow valve is correspondingly communicated with a pipe body of the pipeline A through a pipeline, a first oil outlet of the three-way flow valve is correspondingly communicated with a second oil return port of the oil tank through a pipeline B, a second oil outlet of the three-way flow valve is correspondingly communicated with an oil return port of the three-position four-way electromagnetic reversing valve B through a pipeline C, an oil outlet of the three-position four-way electromagnetic reversing valve B is correspondingly communicated with the pipe body of the pipeline B through a pipeline, and two oil through ports of the three-position four-way electromagnetic reversing valve B are respectively and correspondingly communicated with an oil inlet of the;
preferably, the hydraulic system is provided with a pilot-operated electromagnetic overflow valve, an oil inlet of the overflow valve is correspondingly communicated with a pipe body of a pipeline A through a pipeline D, and an oil outlet of the pilot-operated electromagnetic overflow valve is correspondingly communicated with a pipe body of a pipeline B through a pipeline;
preferably, the hydraulic system is provided with a safety valve, an oil inlet of the safety valve is correspondingly communicated with a pipe body of the pipeline C through a pipeline, and an oil outlet of the safety valve is correspondingly communicated with a pipe body of the pipeline B;
preferably, the pipe body of the pipeline A is provided with a pressure gauge for detecting the pressure of hydraulic oil in the pipe.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a dual output hydraulic system with flow control function, carry out the hydraulic oil supply to two actuating mechanisms through two tribit cross solenoid directional valves, and the tee bend flow valve can reduce the hydraulic oil that tribit cross solenoid directional valve B exported to satisfy the demand of two actuating mechanisms to hydraulic oil; in addition, when the load of the branch of the oil through port of each of the two three-position four-way electromagnetic directional valves is overlarge, the two overflow valves can respectively carry out unloading protection on the corresponding three-position four-way electromagnetic directional valves.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is another schematic structural diagram of the present invention.
In the figure: 1. an oil tank; 2. a hydraulic pump; 3. a one-way valve; 3.1, a pipeline A; 4. a three-position four-way electromagnetic directional valve A; 5. a first actuator; 6. a three-way flow valve; 6.1, a pipeline B; 6.2, a pipeline C; 7. a three-position four-way electromagnetic directional valve B; 8. a second actuator; 9. a pilot type electromagnetic relief valve; 9.1, a pipeline D; 10. a safety valve; 11. and a pressure gauge.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The dual-output hydraulic system with the flow regulation function described with reference to fig. 1-2 comprises an oil tank 1, a hydraulic pump 2, a one-way valve 3, a three-position four-way electromagnetic directional valve a4, a three-way flow valve 6 and a three-position four-way electromagnetic directional valve B7; the oil outlet of the oil tank 1 is correspondingly communicated with the oil inlet of the hydraulic pump 2 through a pipeline, the oil outlet of the hydraulic pump 2 is correspondingly communicated with the input port of the check valve 3 through a pipeline, hydraulic oil in a pipeline A3.1 can be prevented from flowing back to the oil tank 1 through a pipeline A3.1 through the check valve 3, the output port of the check valve 3 is correspondingly communicated with the oil inlet of the three-position four-way electromagnetic directional valve A4 through a pipeline A3.1, a pressure gauge 11 for detecting the hydraulic oil pressure in the pipeline A3.1 is arranged on the pipe body of the pipeline A3.1 according to requirements, so that whether the load of the oil through port branch of the three-position four-way electromagnetic directional valve A4 is overlarge or not is judged, the oil return port of the four-position three-way electromagnetic directional valve A4 is correspondingly communicated with the first oil return port of the oil tank 1 through a pipeline, and two oil ports of the three-position four-way electromagnetic, when the electromagnetic directional valve is electrified to work, the oil inlet of the electromagnetic directional valve is correspondingly communicated with the two oil through holes, so that hydraulic oil is provided for the first actuating mechanism 5; in addition, the hydraulic system is provided with a pilot-operated electromagnetic overflow valve 9, an oil inlet of the overflow valve 9 is correspondingly communicated with a pipe body of a pipeline A3.1 through a pipeline D9.1, an oil outlet of the pilot-operated electromagnetic overflow valve 9 is correspondingly communicated with a pipe body of a pipeline B6.1 through a pipeline, and the overflow valve 9 can provide pressure for the hydraulic system because a pilot valve part of the pilot-operated electromagnetic overflow valve 9 has certain pressure, and when the hydraulic oil pressure input by the oil inlet of the three-position four-way electromagnetic directional valve A4 is overlarge, the overflow valve 9 part of the pilot-operated electromagnetic overflow valve 9 works and can discharge a part of hydraulic oil from the oil outlet of the overflow valve 9, so that the three-position four-way electromagnetic directional valve A4 is subjected to unloading protection;
an oil inlet of the three-way flow valve 6 is correspondingly communicated with a pipe body of a pipeline A3.1 through a pipeline, a first oil outlet of the three-way flow valve 6 is correspondingly communicated with a second oil return port of an oil tank 1 through a pipeline B6.1, a second oil outlet of the three-way flow valve 6 is correspondingly communicated with an oil inlet of a three-position four-way electromagnetic directional valve B7 through a pipeline C6.2, when the three-position four-way electromagnetic directional valve B7 is powered on to work, the three-position four-way electromagnetic directional valve A4 does not work, hydraulic oil firstly enters the three-way flow valve 6 through the pipeline A3.1, an internal valve core acts under the combined action of the pressure drop of the three-way flow valve 6 and a spring, and therefore one part of the hydraulic oil is discharged back to the oil tank 1, and the other part; an oil return port of the three-position four-way electromagnetic directional valve B7 is correspondingly communicated with a pipe body of a pipeline B6.1 through a pipeline, two oil through ports of the three-position four-way electromagnetic directional valve B7 are respectively and correspondingly communicated with an oil inlet of the second actuating mechanism 8, and as the flow of hydraulic oil required by the second actuating mechanism 8 is small, a part of hydraulic oil is discharged back to the oil tank 1 through the three-way flow valve 6, so that the second actuating mechanism 8 can normally work; according to the needs, this hydraulic system is equipped with relief valve 10, and the oil inlet of relief valve 10 corresponds the intercommunication through pipeline and pipeline C6.2's shaft of pipe, and the oil-out of relief valve 10 corresponds the intercommunication with pipeline B6.1's shaft of pipe, and when the load of tribit four-way flow valve B two through the hydraulic fluid port branch road was too big, relief valve 10 then carried out the off-load operation to the hydraulic oil in the pipeline D9.1 to let tribit four-way flow valve B's work safer.
Implement the utility model discloses a during dual output hydraulic system with flow control function, when tribit four-way solenoid directional valve A4 got electric work, tribit four-way solenoid directional valve B7 did not work, the pressure oil in the oil tank 1 passes through hydraulic pump 2 output, get into the oil inlet of tribit four-way solenoid directional valve A4 through pipeline A3.1, then export to first actuating mechanism 5 from the two oil mouths of tribit four-way solenoid directional valve A4, when first actuating mechanism 5 work is accomplished, close tribit four-way solenoid directional valve A4, and the hydraulic oil in the first mechanism will get back to in the oil tank 1 through two oil mouths and the oil return opening of tribit four-way solenoid directional valve A4; when the three-position four-way electromagnetic directional valve B7 is powered on to work, the three-position four-way electromagnetic directional valve a4 does not work, pressure oil in the oil tank 1 is output through the hydraulic pump 2, enters the three-way flow valve 6 through the pipeline a3.1, because the flow rate of hydraulic oil required by the second actuating mechanism 8 is smaller than that of hydraulic oil required by the first actuating mechanism 5, a first oil outlet of the three-way flow valve 6 discharges a part of hydraulic oil back into the oil tank 1, the other part of hydraulic oil enters the three-position four-way electromagnetic directional valve B7 through a second oil outlet, and is output into the second actuating mechanism 8 through two oil ports of the three-position four-way electromagnetic directional valve B7, when the second actuating mechanism 8 finishes working, the three-position four-way electromagnetic directional valve B7 is closed, and the hydraulic oil in the second mechanism returns into the oil tank 1 through the two oil ports and the oil return port of the three.
The part of the utility model not detailed is prior art.
Claims (4)
1. A dual-output hydraulic system with a flow regulation function is characterized in that: the hydraulic control system comprises an oil tank (1), a hydraulic pump (2), a one-way valve (3), a three-position four-way electromagnetic directional valve A (4), a three-way flow valve (6) and a three-position four-way electromagnetic directional valve B (7); an oil outlet of the oil tank (1) is correspondingly communicated with an oil inlet of the hydraulic pump (2) through a pipeline, an oil outlet of the hydraulic pump (2) is correspondingly communicated with an input port of the check valve (3) through a pipeline, an output port of the check valve (3) is correspondingly communicated with an oil inlet of the three-position four-way electromagnetic directional valve A (4) through a pipeline A (3.1), an oil return port of the three-position four-way electromagnetic directional valve A (4) is correspondingly communicated with a first oil return port of the oil tank (1) through a pipeline, and two oil return ports of the three-position four-way electromagnetic directional valve A (4) are correspondingly communicated with an oil inlet of the first actuating mechanism (5); the oil inlet of the three-way flow valve (6) is correspondingly communicated with the pipe body of the pipeline A (3.1) through a pipeline, the first oil outlet of the three-way flow valve (6) is correspondingly communicated with the second oil return port of the oil tank (1) through a pipeline B (6.1), the second oil outlet of the three-way flow valve (6) is correspondingly communicated with the oil inlet of the three-position four-way electromagnetic reversing valve B (7) through a pipeline C (6.2), the oil return port of the three-position four-way electromagnetic reversing valve B (7) is correspondingly communicated with the pipe body of the pipeline B (6.1) through a pipeline, and two oil through ports of the three-position four-way electromagnetic reversing valve B (7) are correspondingly communicated with the oil inlet of the second execution mechanism (8) respectively.
2. The dual output hydraulic system with flow regulation function of claim 1, characterized by: the hydraulic system is provided with a pilot-operated electromagnetic overflow valve (9), an oil inlet of the overflow valve (9) is correspondingly communicated with a pipe body of a pipeline A (3.1) through a pipeline D (9.1), and an oil outlet of the pilot-operated electromagnetic overflow valve (9) is correspondingly communicated with a pipe body of a pipeline B (6.1) through a pipeline.
3. The dual output hydraulic system with flow regulation function of claim 1, characterized by: this hydraulic system is equipped with relief valve (10), and the oil inlet of relief valve (10) corresponds the intercommunication through the pipe shaft of pipeline and pipeline C (6.2), and the oil-out of relief valve (10) corresponds the intercommunication with the pipe shaft of pipeline B (6.1).
4. The dual output hydraulic system with flow regulation function of claim 1, characterized by: the pipe body of the pipeline A (3.1) is provided with a pressure gauge (11) for detecting the pressure of hydraulic oil in the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478283.1U CN212155292U (en) | 2020-04-03 | 2020-04-03 | Dual-output hydraulic system with flow regulation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478283.1U CN212155292U (en) | 2020-04-03 | 2020-04-03 | Dual-output hydraulic system with flow regulation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155292U true CN212155292U (en) | 2020-12-15 |
Family
ID=73726022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020478283.1U Active CN212155292U (en) | 2020-04-03 | 2020-04-03 | Dual-output hydraulic system with flow regulation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155292U (en) |
-
2020
- 2020-04-03 CN CN202020478283.1U patent/CN212155292U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9400002B2 (en) | Load sensing electric-proportional multi-way valve | |
| CN103047208B (en) | Load-sensitive electro-hydraulic proportional multi-way valve | |
| CN100549431C (en) | Fluid pressure valve device | |
| CN107814324B (en) | Take two pressure compensation's anchor winch hydraulic control system | |
| CN102251996A (en) | Engineering mechanical load sensing hydraulic system | |
| CN101191507A (en) | Hydraulic system for tunneling machine | |
| CN103343759A (en) | Dual-purpose multi-channel hydraulic proportional valve | |
| CN102865387A (en) | Electric proportional multi-way valve | |
| CN108443273B (en) | A kind of emergency management and rescue vehicle equipment oil return line pressure compensation throttle control system | |
| CN202851491U (en) | Load-sensitive multi-way valve used in loader variable system | |
| CN110953197B (en) | Power control hydraulic system and crane | |
| CN109306976B (en) | Load sensitive control system | |
| CN109505812B (en) | Variable pump dual-mode control hydraulic system and tunnel operation vehicle | |
| CN212155292U (en) | Dual-output hydraulic system with flow regulation function | |
| CN102242745B (en) | Highly integrated proportion flow distribution valve | |
| CN214423459U (en) | Constant-variable flow converging hydraulic system for loader | |
| CN202144808U (en) | Highly-integrated proportional flow distribution valve | |
| CN203702696U (en) | Load-sensitive hydraulic system and engineering machinery | |
| CN201144902Y (en) | Hydraulic system for development machine | |
| CN202923545U (en) | Loading and unloading switching device and load-sensitive hydraulic system | |
| CN201347345Y (en) | Fork truck quantitative hydraulic load sensing device | |
| CN213540900U (en) | Novel no back pressure type low pressure shut-off valve | |
| CN212985658U (en) | Proportional speed regulating valve group | |
| CN210663382U (en) | Full-automatic pressure-bearing non-pressure operation system of water storage type water heater | |
| CN202913450U (en) | Pressure compensator used for loader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |