CN220435159U - Proportional multi-way valve converging block with flow priority function - Google Patents
Proportional multi-way valve converging block with flow priority function Download PDFInfo
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- CN220435159U CN220435159U CN202321947910.1U CN202321947910U CN220435159U CN 220435159 U CN220435159 U CN 220435159U CN 202321947910 U CN202321947910 U CN 202321947910U CN 220435159 U CN220435159 U CN 220435159U
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 30
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 13
- 230000009471 action Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to the technical field of proportional multi-way valves, and discloses a proportional multi-way valve converging block with a flow priority function, which comprises a converging block body, wherein the converging block body is provided with a flow regulating valve, a hydraulic control reversing valve, a safety valve and a buffer valve, the converging block body is a mounting matrix of each element, and an oil duct in the converging block body conducts each element according to the requirements of a schematic diagram. According to the utility model, through arranging the confluence block, the main pump and the auxiliary pump supply oil to the respectively responsible executing mechanisms respectively by opening the confluence block, the mutual interference is avoided, the energy consumption is saved, after the confluence block is opened, the flow of the auxiliary pump is preferentially supplied to the corresponding executing mechanism, the residual flow is converged with the main pump, the total flow of the pump is fully utilized, the speed of the most important executing mechanisms can be ensured to always meet the requirement, the influence of the saturation of the flow of the pump is avoided, and the opening condition of the confluence block can be set according to the requirement.
Description
Technical Field
The utility model relates to the technical field of proportional multi-way valves, in particular to a proportional multi-way valve converging block with a flow priority function.
Background
The proportional multi-way valve is a comprehensive hydraulic control element, can proportionally control the opening of a valve core according to an electric signal, thereby controlling the direction, flow and pressure of hydraulic oil, and is widely applied to various engineering machinery and industrial hydraulic equipment, however, in the proportional multi-way valve adopting pre-valve compensation, the problem of flow saturation caused by insufficient flow of a pump is often encountered, namely, the output flow of the pump is smaller than the flow requirement of the proportional multi-way valve, so that a certain or a plurality of actions are uncontrolled to slow down or stop, the operation quality and the running safety are seriously influenced, and a double-pump system is adopted, and a main pump and an auxiliary pump are used for separately driving respective corresponding actuating mechanisms, so that the problems can be partially solved, but the flow utilization rate is low, and the whole flow of the two pumps cannot be fully utilized to enable the actuating mechanisms to reach higher speed.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides the proportional multi-way valve converging block with the flow priority function, and has the advantage of the flow priority function.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a proportional multi-way valve converging block with flow priority function comprises
And the converging block is provided with a flow regulating valve, a hydraulic control reversing valve, a safety valve and a buffer valve, and is an installation matrix of each element.
As a preferable technical scheme of the utility model, the flow regulating valve comprises a flow regulating valve core, a first spring seat, a first spring, a first plug and a second plug;
the flow regulating valve core, the first spring seat, the first spring, the first plug and the second plug are all arranged on the converging block.
As a preferable technical scheme of the utility model, the hydraulic control reversing valve comprises a hydraulic control reversing valve core, a spring seat II and a spring II;
wherein, hydraulic control switching-over case, spring holder two and spring two all set up on the confluence block.
As a preferable embodiment of the present utility model, the safety valve is disposed on the left side of the regulating valve.
As a preferable embodiment of the present utility model, the buffer valve is disposed below the safety valve.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through arranging the confluence block, the main pump and the auxiliary pump supply oil to the respectively responsible executing mechanisms respectively by opening the confluence block, the mutual interference is avoided, the energy consumption is saved, after the confluence block is opened, the flow of the auxiliary pump is preferentially supplied to the corresponding executing mechanism, the residual flow is converged with the main pump, the total flow of the pump is fully utilized, the speed of the most important executing mechanisms can be ensured to always meet the requirement, the influence of the saturation of the flow of the pump is avoided, and the opening condition of the confluence block can be set according to the requirement.
Drawings
FIG. 1 is a block diagram of a proportional multi-way valve with flow priority;
FIG. 2 is a block diagram of a flow control valve;
FIG. 3 is a block diagram of a pilot operated directional valve;
fig. 4 is a schematic diagram of a proportional multi-way valve converging block with flow priority in truck mounted crane applications.
In the figure: 1. confluence block; 2. a flow regulating valve; 2-1, a flow regulating valve core; 2-2, a spring seat I; 2-3, spring I; 2-4a, plug one; 2-4b, plug one; 3. a hydraulically controlled reversing valve; 3-1, a hydraulic control reversing valve core; 3-2, a spring seat II; 3-3, a second spring; 4. a safety valve; 5. and a buffer valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in FIGS. 1 to 4, the present utility model provides a proportional multi-way valve confluence block with flow priority function, comprising
The converging block 1 is provided with a flow regulating valve 2, a hydraulic control reversing valve 3, a safety valve 4 and a buffer valve 5, wherein the converging block 1 is a mounting base body of each element, and an oil passage in the converging block conducts each element according to fig. 4.
The working pressure of the auxiliary pump is controlled through the flow regulating valve 2, and the residual flow is discharged; the hydraulic control reversing valve 3 controls the discharge direction of the residual flow of the flow regulating valve 2, when the control cavity of the hydraulic control reversing valve 3 is unloaded, the residual flow of the auxiliary pump is discharged to an oil tank, and when the control cavity of the hydraulic control reversing valve 3 is pressurized, the residual flow of the auxiliary pump is combined with the main pump; the safety valve 4 limits the highest pressure of the auxiliary pump to prevent overpressure; the buffer valve 5 slows down the pressure fluctuation of the oil liquid entering the spring cavity of the flow regulating valve 2, so that the auxiliary pump works more stably.
The flow regulating valve 2 comprises a flow regulating valve core 2-1, a first spring seat 2-2, a first spring 2-3, a first plug 2-4a and a second plug 2-4b;
the flow regulating valve core 2-1, the first spring seat 2-2, the first spring 2-3, the first plug 2-4a and the second plug 2-4b are all arranged on the converging block body 1.
The inlet and the control cavity of the flow regulating valve 2 are connected with the pressure port of the auxiliary pump, the outlet is connected with the inlet of the hydraulic control reversing valve 3, and the spring cavity is connected with the maximum load of the corresponding actuating mechanism of the auxiliary pump, so that the pressure of the auxiliary pump always adds spring force to the maximum load force of the corresponding actuating mechanism, and the residual flow is discharged to the inlet of the hydraulic control reversing valve 3.
The hydraulic control reversing valve 3 comprises a hydraulic control reversing valve core 3-1, a second spring seat 3-2 and a second spring 3-3;
wherein, the hydraulic control reversing valve core 3-1, the spring seat II 3-2 and the spring II 3-3 are all arranged on the converging block body 1.
The inlet of the hydraulic control reversing valve 3 is connected with the outlet of the flow regulating valve 2, and the outlet has two directions: the oil tank or the main pump is converged, the control cavity is connected with an upstream load feedback port, the spring cavity is connected with the oil tank, no converging requirement is indicated when the upstream load feedback port is pressureless, and the hydraulic control reversing valve 3 discharges the residual flow of the flow regulating valve 2 to the oil tank; when the upstream load feedback port has pressure, the confluence requirement is indicated, the pilot operated directional valve 3 switches under the pressure action, and the residual flow of the flow regulating valve 2 is merged with the main pump.
Wherein the safety valve 4 is arranged at the left side of the regulating valve 2.
The highest pressure of the auxiliary pump is limited by the relief valve 4, preventing overpressure.
Wherein the cushion valve 5 is arranged below the safety valve 4.
The buffer valve 5 is used for relieving the pressure fluctuation of the oil liquid entering the spring cavity of the flow regulating valve 2, so that the auxiliary pump works more stably.
The working principle and the using flow of the utility model are as follows:
the working pressure of the auxiliary pump is controlled through the flow regulating valve 2, and the residual flow is discharged; the hydraulic control reversing valve 3 controls the discharge direction of the residual flow of the flow regulating valve 2, when the control cavity of the hydraulic control reversing valve 3 is unloaded, the residual flow of the auxiliary pump is discharged to an oil tank, and when the control cavity of the hydraulic control reversing valve 3 is pressurized, the residual flow of the auxiliary pump is combined with the main pump; the safety valve 4 limits the highest pressure of the auxiliary pump to prevent overpressure; the buffer valve 5 slows down the pressure fluctuation of the oil entering the spring cavity of the flow regulating valve 2, so that the auxiliary pump works more stably, the truck-mounted crane is also called as a truck-mounted crane, and generally has 4 actions of expansion, amplitude variation, hoisting and rotation, the compound actions are more, the flow required by the hoisting is maximum, for saving energy and reducing the heating of the oil, the large-tonnage truck-mounted crane generally adopts a duplex gear pump, the flow of the main pump enters the head piece of the proportional multi-way valve, the flow of the auxiliary pump enters the whole confluence block 1, the confluence pressure signal is fed back by the hoisting load, when the hoisting does not work, the hydraulic control reversing valve 3 is in an unloading position, the flow of the main pump can supply expansion and amplitude variation, and the residual flow returns to the oil tank; the flow of the auxiliary pump is supplied for rotation, the residual flow returns to the oil tank, so that rotation cannot be disturbed no matter the telescopic flow or the amplitude-variable flow, when the winch works, the hydraulic control reversing valve 3 reverses, the flow of the auxiliary pump is preferentially supplied for rotation at the moment, but the residual flow is converged with the main pump, and the telescopic flow, the amplitude-variable flow and the winch can be continuously supplied, so that the rotation priority is ensured, and the flow of the auxiliary pump is fully utilized.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A proportional multi-way valve converging block with a flow priority function is characterized by comprising
The converging block body (1) is provided with a flow regulating valve (2), a hydraulic control reversing valve (3), a safety valve (4) and a buffer valve (5), and the converging block body (1) is an installation matrix of each element.
2. The proportional multi-way valve converging block with a flow priority function according to claim 1, wherein: the flow regulating valve (2) comprises a flow regulating valve core (2-1), a first spring seat (2-2), a first spring (2-3), a first plug (2-4 a) and a second plug (2-4 b);
the flow regulating valve comprises a flow regulating valve core (2-1), a first spring seat (2-2), a first spring (2-3), a first plug (2-4 a) and a second plug (2-4 b), which are all arranged on a converging block body (1).
3. The proportional multi-way valve converging block with a flow priority function according to claim 1, wherein: the hydraulic control reversing valve (3) comprises a hydraulic control reversing valve core (3-1), a second spring seat (3-2) and a second spring (3-3);
wherein, hydraulic control switching-over case (3-1), spring holder two (3-2) and spring two (3-3) all set up on confluence block (1).
4. The proportional multi-way valve converging block with a flow priority function according to claim 1, wherein: the safety valve (4) is arranged at the left side of the regulating valve (2).
5. The proportional multi-way valve converging block with a flow priority function according to claim 1, wherein: the buffer valve (5) is arranged below the safety valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321947910.1U CN220435159U (en) | 2023-07-24 | 2023-07-24 | Proportional multi-way valve converging block with flow priority function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321947910.1U CN220435159U (en) | 2023-07-24 | 2023-07-24 | Proportional multi-way valve converging block with flow priority function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220435159U true CN220435159U (en) | 2024-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321947910.1U Active CN220435159U (en) | 2023-07-24 | 2023-07-24 | Proportional multi-way valve converging block with flow priority function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220435159U (en) |
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2023
- 2023-07-24 CN CN202321947910.1U patent/CN220435159U/en active Active
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