CN115653965B - Hydraulic valve assembly and system - Google Patents
Hydraulic valve assembly and system Download PDFInfo
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- CN115653965B CN115653965B CN202211660076.8A CN202211660076A CN115653965B CN 115653965 B CN115653965 B CN 115653965B CN 202211660076 A CN202211660076 A CN 202211660076A CN 115653965 B CN115653965 B CN 115653965B
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- 238000004891 communication Methods 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 27
- 239000003921 oil Substances 0.000 description 121
- 238000013024 troubleshooting Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of hydraulic equipment, in particular to a hydraulic valve assembly and a hydraulic valve system, wherein the hydraulic valve assembly comprises end covers and communicating pieces, a first oil way and a second oil way are formed in the end covers, at least one end cover is provided with an oil inlet which is communicated with the first oil way, at least one end cover is provided with an oil return port which is communicated with the second oil way, two communicating pieces are respectively communicated with a first communicating port on an adjacent end cover and a second communicating port on an adjacent end cover, and the first communicating port and the second communicating port which are formed on the adjacent two end covers are respectively communicated through the two communicating pieces, so that the first oil way and the second oil way in the adjacent end covers can be respectively communicated, the pipeline connection between the end covers is simplified, the problem that the space arrangement structure is complicated due to the fact that a plurality of rubber pipes are mutually connected in series is avoided, and the pipeline is easy to judge and identify when the faults are searched in later maintenance, and the maintenance accuracy and the maintenance efficiency are improved.
Description
Technical Field
The invention relates to the technical field of hydraulic equipment, in particular to a hydraulic valve assembly and a hydraulic valve system.
Background
An excavator is an earth moving machine that excavates material above or below a bearing surface with a bucket and loads it into a transport vehicle or unloads it to a stockyard. The hydraulic excavator realizes various actions by mainly driving a hydraulic pump to convey pressure oil through an engine, distributing flow through a multi-way valve, opening and closing a valve core and then returning the hydraulic oil to an oil tank for reciprocating circulation.
In a hydraulic system of the existing excavator, a pilot oil inlet path and an oil discharge path are provided, a plurality of pilot oil inlet and oil discharge ports of a multi-way valve are also more, and a plurality of oil ports are generally connected by rubber pipes so that pressure oil finally returns to an oil tank.
But after a plurality of rubber tubes are connected in series, the rubber tube space arrangement structure is complex, visual judgment errors are easy to cause, and the later maintenance troubleshooting is not facilitated.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that the hydraulic system in the prior art is complex in pipeline arrangement and is not beneficial to installation and maintenance.
In order to solve the above problems, the present invention provides a hydraulic valve assembly including:
the oil return device comprises a plurality of end covers, wherein a first oil path and a second oil path are formed in each end cover, one or two first communication ports and a second communication port are formed in each end cover, two ends of each first communication port are respectively communicated with the first oil path and the outside, two ends of each second communication port are respectively communicated with the second oil path and the outside, an oil inlet is formed in at least one end cover and is communicated with the first oil path, an oil return port is formed in at least one end cover, and the oil return port is communicated with the second oil path;
and the two communicating pieces are respectively communicated with the first communicating port on the adjacent end cover and the second communicating port on the adjacent end cover.
Further, in this hydraulic valve assembly, the first oil passage and the second oil passage are arranged in parallel.
Further, in the hydraulic valve assembly, the end cover is further provided with a mounting hole, the mounting hole is communicated with the first oil path and the second oil path, a valve core is arranged in the mounting hole, and the valve core is suitable for communicating the mounting hole with the first oil path or communicating the mounting hole with the second oil path.
Further, according to the hydraulic valve assembly, the communication piece is tubular, sealing grooves are formed in two ends of the communication piece, and sealing pieces are arranged in the sealing grooves.
Further, in this hydraulic valve assembly, the communication member is a rigid pipe.
Further, this hydraulic valve assembly still includes:
and the installation parts are arranged on the outer wall of the end cover and are suitable for being fixedly connected with the multi-way valve body.
Further, in this hydraulic valve assembly, the first communication port and the second communication port are provided at the end cover side portion.
Further, in the hydraulic valve assembly, the oil inlet and the oil return opening are arranged on the side part of the end cover.
The invention further provides a hydraulic valve system which comprises the hydraulic valve assembly.
Further, this hydraulic valve system still includes:
the multiple multi-way valve bodies are connected with the end covers in a one-to-one corresponding mode;
the oil inlet pipe is communicated with the oil inlet;
the oil return pipe is communicated with the oil return port;
and the oil tank is communicated with the oil inlet pipe and the oil return pipe.
The invention has the following advantages:
1. the hydraulic valve assembly provided by the invention comprises an end cover and communicating pieces, wherein a first oil path and a second oil path are formed in the end cover, one or two first communicating holes and a second communicating hole are formed in the end cover, two ends of each first communicating hole are respectively communicated with the first oil path and the outside, two ends of each second communicating hole are respectively communicated with the second oil path and the outside, an oil inlet is formed in at least one end cover and is communicated with the first oil path, an oil return opening is formed in at least one end cover and is communicated with the second oil path, and the two communicating pieces are respectively communicated with the first communicating holes in the adjacent end cover and the second communicating holes in the adjacent end cover.
The first oil way and the second oil way are arranged in the end covers, the first communicating port and the second communicating port which are arranged on the two adjacent end covers are communicated respectively by arranging the two communicating pieces, so that the first oil way and the second oil way in the adjacent end covers can be communicated respectively, the pipeline connection between the end covers is simplified, the complex spatial arrangement structure caused by the mutual series connection of the end covers by using a plurality of rubber pipes is avoided, and the pipelines are easy to judge and identify during later maintenance and troubleshooting, so that the maintenance accuracy and the maintenance efficiency are improved.
2. The hydraulic valve assembly provided by the invention is provided with the first oil way and the second oil way in parallel, so that the first oil way and the second oil way between the adjacent end covers can be conveniently communicated, the end covers which are mutually communicated can be positioned in the same plane, the arrangement structure between the end covers is simplified, the pipelines are easy to judge and identify during later maintenance and repair work, and the maintenance accuracy and the maintenance efficiency are improved.
3. According to the hydraulic valve assembly provided by the invention, the end cover is also provided with the mounting hole for communicating the first oil path with the second oil path, and the mounting hole can be communicated with the first oil path or communicated with the second oil path through the valve core arranged in the mounting hole, so that the first oil path or the second oil path can be conveniently communicated with the actuating mechanism.
4. The hydraulic valve system comprises the hydraulic valve assembly provided by the invention, the end covers are connected with the multi-way valve bodies in a one-to-one correspondence mode, the end covers are communicated with the oil tank through the oil inlet pipe and the oil return pipe, and the first oil way and the second oil way among the multi-way valves are respectively communicated through the communicating piece, so that the pipeline connection among the end covers is simplified, the space arrangement structure caused by the fact that the end covers are connected in series through a plurality of rubber pipes is avoided, when the hydraulic valve system is maintained and checked in the later period, the pipeline is easy to judge and identify, and therefore the maintenance accuracy and the maintenance efficiency are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the internal structure of a hydraulic valve assembly provided in an embodiment of the present invention;
FIG. 2 is a schematic external view of a hydraulic valve assembly provided in an embodiment of the present invention;
FIG. 3 is an enlarged view of the point A in FIG. 2;
FIG. 4 is a cross-sectional view of an end cap in a hydraulic valve assembly provided in an embodiment of the present invention.
Description of reference numerals:
1. an end cap; 2. a first oil passage; 21. a first communication port; 22. an oil inlet; 3. a second oil passage; 31. a second communication port; 32. an oil return port; 4. a communicating member; 41. a sealing groove; 42. a seal member; 5. mounting holes; 6. an installation part; 7. an oil inlet pipe; 8. an oil return pipe.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in fig. 1 to 4, the hydraulic valve assembly provided by the present invention includes end covers 1 and communicating members 4, a plurality of end covers 1 are respectively provided with a first oil path 2 and a second oil path 3, the end cover 1 is provided with one or two first communicating ports 21 and a second communicating port 31, two ends of the first communicating port 21 are respectively communicated with the first oil path 2 and the outside, two ends of the second communicating port 31 are respectively communicated with the second oil path 3 and the outside, wherein at least one end cover 1 is provided with an oil inlet 22, the oil inlet 22 is communicated with the first oil path 2, at least one end cover 1 is provided with an oil return port 32, the oil return port 32 is communicated with the second oil path 3, and the two communicating members 4 are respectively communicated with the first communicating port 21 on an adjacent end cover 1 and the second communicating port 31 on an adjacent end cover 1.
As shown in fig. 1 and fig. 2, in the present embodiment, the number of the end caps 1 is two, a first communicating opening 21 and a second communicating opening 31 are formed in the end caps 1, one of the end caps 1 is provided with an oil inlet 22, and the other end cap 1 is provided with an oil return opening 32.
Through setting up two communicating parts 4 and communicating respectively the first intercommunication mouth 21 and the second intercommunication mouth 31 of seting up on two adjacent end covers 1 mutually, alright be linked together first oil circuit 2 and second oil circuit 3 in the adjacent end cover 1 respectively, the tube coupling between end cover 1 has been simplified, make the connection between end cover 1 simple directly perceived, the spatial arrangement structure that has avoided using many rubber tubes to establish ties each other between end cover 1 and cause is complicated, when later maintenance troubleshooting trouble, easily judge discernment pipeline, thereby the accuracy of maintenance and maintenance efficiency have been improved.
In some embodiments, which are not shown, the number of the end covers 1 is greater than two, the end covers 1 are sequentially communicated, a first oil path 2 and a second oil path 3 are formed in the end cover 1, a first communication port 21 and a second communication port 31 are formed in the end cover 1 at the head end and the tail end, two first communication ports 21 and two second communication ports 31 are formed in the end cover 1 at the intermediate position, and the first communication ports 21 and the second communication ports 31 are respectively located at two sides of the end cover 1, wherein an oil inlet 22 is formed in the end cover 1 at the head end, the oil inlet 22 is communicated with the first oil path 2, an oil return port 32 is formed in the end cover 1 at the tail end, the oil return port 32 is communicated with the second oil path 3, and the first communication port 21 in the adjacent end cover 1 is communicated with the second communication port 31 in the adjacent end cover 1 through a communication piece 4.
Therefore, the first oil paths 2 and the second oil paths 3 in the adjacent end covers 1 can be respectively communicated, the pipeline connection among the end covers 1 is simplified, the problem that the spatial arrangement structure is complex due to the fact that the end covers 1 are connected in series through a plurality of rubber tubes is avoided, and pipelines are easy to judge and identify during later maintenance troubleshooting, so that the maintenance accuracy and the maintenance efficiency are improved.
As shown in fig. 1 and 4, in this embodiment, the first oil path 2 and the second oil path 3 are arranged in parallel, so that the first oil path 2 and the second oil path 3 between the adjacent end covers 1 are conveniently communicated, and the end covers 1 which are mutually communicated can be located in the same plane, thereby simplifying the arrangement structure between the end covers 1, and during later maintenance and repair work, pipelines are easily judged and identified, thereby improving the maintenance accuracy and the maintenance efficiency.
As shown in fig. 1, 2 and 4, in this embodiment, the end cover 1 is further provided with a mounting hole 5 for communicating the first oil path 2 and the second oil path 3, and the mounting hole 5 can be communicated with the first oil path 2 or the mounting hole 5 can be communicated with the second oil path 3 through a valve core arranged in the mounting hole 5, so as to facilitate communication between the first oil path 2 or the second oil path 3 and the actuator.
The mounting hole 5 is not specifically limited in this embodiment, and in order to meet the actual situation, three mounting holes 5 are provided in this embodiment, and the three mounting holes 5 are disposed on the same horizontal plane as the first oil path 2 and the second oil path 3.
As shown in fig. 3, the communication member 4 is tubular, in this embodiment, the communication member 4 is a rigid tube, two ends of the communication member 4 are provided with sealing grooves 41, and a sealing member 42 is disposed in the sealing groove 41.
This embodiment does not do specific restriction to connecting piece 4, for the realistic conditions of according with, connecting piece 4 adopts hollow pin axle processing to make in this embodiment.
In this embodiment, the sealing member 42 is not particularly limited, and in order to meet the practical situation, the sealing member 42 in this embodiment is a sealing ring.
As shown in fig. 2, in this embodiment, a plurality of mounting portions 6 are further disposed on an outer wall of the end cover 1, bolt holes are formed in the mounting portions 6, and the end cover 1 can be fixedly mounted on a corresponding connecting portion of the multi-way valve body through bolts, so that the end cover 1 is more stable during operation.
In this embodiment, the first communication port 21 and the second communication port 31 are disposed on the side of the end cover 1, and the oil inlet 22 and the oil return port 32 are disposed on the side of the end cover 1.
In summary, according to the hydraulic valve assembly provided by the present invention, the two rigid communicating members 4 are provided to respectively communicate the first communicating port 21 and the second communicating port 31 formed on the side portions of the two adjacent end covers 1, so as to respectively communicate the first oil path 2 and the second oil path 3 in the two adjacent end covers 1, the valve core provided in the mounting hole 5 can enable the mounting hole 5 to communicate with the first oil path 2, or enable the mounting hole 5 to communicate with the second oil path 3, only the oil inlet 22 communicating with the first oil path 2 is provided on one of the end covers 1, and the oil return port 32 communicating with the second oil path 3 is provided on the other end cover 1, so as to achieve direct communication between the oil inlet and the oil return in the two end covers 1, without distinguishing the oil inlets inside the two end covers 1, thereby simplifying the pipeline connection between the end covers 1, avoiding the complex spatial arrangement structure caused by the series connection of the end covers 1 with each other using a plurality of rubber pipes, and easily determining and identifying the pipeline when a later maintenance troubleshooting is performed, thereby improving the accuracy of the maintenance and the maintenance efficiency.
Example 2
The hydrovalve system that this embodiment provided, the hydrovalve subassembly in embodiment 1 or embodiment 2 has been adopted, a plurality of end covers 1 are connected with a plurality of multiple unit valve body one-to-one, through advancing oil pipe 7 and returning oil pipe 8 with end cover 1 and oil tank intercommunication, make first oil circuit 2 between a plurality of multiple unit valves communicate respectively through the connecting piece 4 with second oil circuit 3, the tube coupling between end cover 1 has been simplified, the spatial arrangement structure that has avoided using many rubber tubes to establish ties each other between end cover 1 and cause is complicated, when later maintenance troubleshooting trouble, easily judge the discernment pipeline, thereby the accuracy and the maintenance efficiency of maintaining have been improved.
The multi-way valve body is not specifically limited in this embodiment, and in order to meet the practical situation, the multi-way valve body in this embodiment is a multi-way valve body for distributing hydraulic oil flow in an excavator.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the invention.
Claims (8)
1. A hydraulic valve system, comprising:
the oil-return-type oil pump comprises a plurality of end covers (1), wherein a first oil way (2) and a second oil way (3) are arranged in each end cover (1), one or two first communication ports (21) and a second communication port (31) are formed in each end cover (1), two ends of each first communication port (21) are respectively communicated with the first oil way (2) and the outside, two ends of each second communication port (31) are respectively communicated with the second oil way (3) and the outside, an oil inlet (22) is formed in at least one end cover (1), the oil inlet (22) is communicated with the first oil way (2), an oil return port (32) is formed in at least one end cover (1), and the oil return ports (32) are communicated with the second oil way (3);
the two communicating pieces (4) are respectively communicated with the first communicating port (21) on the adjacent end cover (1) and the second communicating port (31) on the adjacent end cover (1);
the multiple multi-way valve bodies are connected with the end covers (1) in a one-to-one corresponding manner;
the oil inlet pipe (7) is communicated with the oil inlet (22);
the oil return pipe (8) is communicated with the oil return port (32);
and the oil tank is communicated with the oil inlet pipe (7) and the oil return pipe (8).
2. The hydraulic valve system according to claim 1, characterized in that the first oil passage (2) is arranged in parallel with the second oil passage (3).
3. The hydraulic valve system according to claim 2, wherein a mounting hole (5) is further formed in the end cover (1), the mounting hole (5) is communicated with the first oil path (2) and the second oil path (3), a valve core is arranged in the mounting hole (5), and the valve core is suitable for enabling the mounting hole (5) to be communicated with the first oil path (2) or enabling the mounting hole (5) to be communicated with the second oil path (3).
4. The hydraulic valve system according to claim 1 or 2, characterized in that the communication member (4) is tubular, and a sealing groove (41) is provided at both ends of the communication member (4), and a sealing member (42) is provided in the sealing groove (41).
5. Hydraulic valve system according to claim 4, characterized in that the communication member (4) is a rigid tube.
6. The hydraulic valve system of claim 5, further comprising:
and the installation parts (6) are arranged on the outer wall of the end cover (1) and are suitable for being fixedly connected with the multi-way valve body.
7. The hydraulic valve system according to claim 1, wherein the first communication port (21) and the second communication port (31) are provided at a side portion of the end cover (1).
8. The hydraulic valve system according to claim 1, wherein the oil inlet (22) and the oil return port (32) are provided at a side of the end cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211660076.8A CN115653965B (en) | 2022-12-23 | 2022-12-23 | Hydraulic valve assembly and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211660076.8A CN115653965B (en) | 2022-12-23 | 2022-12-23 | Hydraulic valve assembly and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115653965A CN115653965A (en) | 2023-01-31 |
| CN115653965B true CN115653965B (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211660076.8A Active CN115653965B (en) | 2022-12-23 | 2022-12-23 | Hydraulic valve assembly and system |
Country Status (1)
| Country | Link |
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| CN (1) | CN115653965B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0440053Y2 (en) * | 1984-12-18 | 1992-09-18 | ||
| CN2234520Y (en) * | 1994-10-19 | 1996-09-04 | 机械工业部洛阳拖拉机研究所 | Hydraulic assemply by combining gear pump with hand change-over valve |
| CN103603971B (en) * | 2013-12-04 | 2017-03-22 | 湘潭大学 | Multi-way valve with single oil duct and double valve elements in parallel connection and used for high-power excavator |
| CN213017043U (en) * | 2020-07-02 | 2021-04-20 | 潍坊潍液机械有限公司 | Plate type integrated oil cylinder group oil duct system |
| CN112212032B (en) * | 2020-08-25 | 2022-10-04 | 武汉船用机械有限责任公司 | Multi-way valve |
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2022
- 2022-12-23 CN CN202211660076.8A patent/CN115653965B/en active Active
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| CN115653965A (en) | 2023-01-31 |
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