CN219587902U - Oil return pipeline system of crusher and crushing machine - Google Patents
Oil return pipeline system of crusher and crushing machine Download PDFInfo
- Publication number
- CN219587902U CN219587902U CN202320481230.9U CN202320481230U CN219587902U CN 219587902 U CN219587902 U CN 219587902U CN 202320481230 U CN202320481230 U CN 202320481230U CN 219587902 U CN219587902 U CN 219587902U
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- oil
- oil return
- cooler
- branch
- return
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- 238000001914 filtration Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 3
- 238000005336 cracking Methods 0.000 claims 2
- 239000003921 oil Substances 0.000 abstract description 179
- 239000010720 hydraulic oil Substances 0.000 abstract description 25
- 238000001816 cooling Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
Classifications
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides an oil return pipeline system of a crusher and crushing machinery, wherein the oil return pipeline system comprises: an oil return port of the crusher, an oil tank, an oil cooler, a control valve and an oil return pipeline; wherein, return oil line includes: the first oil return branch and the second oil return branch; the first oil return branch is sequentially communicated with an oil return port, an oil cooler and an oil tank; the second oil return branch is sequentially communicated with an oil return port, a control valve, an oil cooler and an oil tank. According to the embodiment of the utility model, the second oil return branch with a longer path is arranged, so that the hydraulic oil flowing out of the oil return port of the breaker can be split and divided, and the hydraulic oil can at least partially enter the oil cooler in a staggered manner, so that the pressure and the flow rate of the hydraulic oil entering the oil cooler can be reduced, the cooling efficiency of the oil cooler can be improved, and the impact on the oil cooler can be reduced or even avoided.
Description
Technical Field
The utility model relates to the technical field of hydraulic crushing, in particular to an oil return pipeline system of a crusher and crushing machinery.
Background
Currently, a breaker may be installed on an engineering machine such as an excavator to form a breaking machine, wherein when a hydraulic pipeline of the breaker is assembled, an oil inlet pipeline of the breaker is communicated with a hydraulic pump through a control valve to obtain high-pressure oil, and an oil return pipeline is directly connected to a hydraulic oil tank or connected with the hydraulic oil tank through an oil cooler, so that under the condition of large oil return amount, the problem that the cooling efficiency of hydraulic oil is low and the impact is easily caused to the oil cooler exists.
Disclosure of Invention
The embodiment of the utility model aims to provide an oil return pipeline system of a crusher and crushing machinery, which are used for solving the problems that the existing oil return pipeline system of the crusher is low in cooling efficiency and easy to impact an oil cooler.
In order to solve the above technical problems, an embodiment of the present utility model provides an oil return line system of a breaker, including: an oil return port of the crusher, an oil tank, an oil cooler, a control valve and an oil return pipeline;
wherein, return oil line includes: the first oil return branch and the second oil return branch;
the first oil return branch is sequentially communicated with the oil return port, the oil cooler and the oil tank;
the second oil return branch is sequentially communicated with the oil return port, the control valve, the oil cooler and the oil tank.
Preferably, the oil return line system as described above further comprises: the first one-way valve is arranged on the second oil return branch;
the first one-way valve is arranged between the control valve and the oil cooler, and is in one-way conduction to the oil cooler, and the opening pressure of the first one-way valve is higher than the first opening pressure.
Preferably, the return line system as described above, further comprises: the second check valve is arranged on the second oil return branch;
the third oil return branch is sequentially communicated with the control valve, the second one-way valve and the oil tank, and the second one-way valve is in one-way conduction to the oil tank;
the opening pressure of the second one-way valve is higher than the second opening pressure.
In particular, the second opening pressure is greater than the first opening pressure, as described above for the return line system.
Optionally, the oil return pipe system as described above further includes: the filtering device is arranged on one side of the oil return pipeline, which is close to the oil tank.
In particular, the return line system as described above, the filtering device comprises: the filter and the third one-way valve are connected with the filter in parallel, and the third one-way valve is communicated to the oil tank in a one-way.
Specifically, the oil return pipe system as described above further includes: and the locking valve is arranged at the oil return port.
Another embodiment of the present utility model also provides a crushing machine, comprising: a breaker and an oil return line system as described above;
wherein, the breaker is in communication with the return line system.
Compared with the prior art, the oil return pipeline system of the crusher and the crushing machine provided by the embodiment of the utility model have the following beneficial effects:
according to the utility model, the second oil return branch with a longer path is arranged, so that the hydraulic oil flowing out of the oil return port of the breaker can be split and divided, and the hydraulic oil can at least partially enter the oil cooler in a staggered way, thereby being beneficial to reducing the pressure and the flow rate of the hydraulic oil entering the oil cooler, further being beneficial to improving the cooling efficiency of the oil cooler, and reducing or even avoiding the impact on the oil cooler.
Drawings
Fig. 1 is a schematic structural view of an oil return line system of the breaker of the present utility model.
[ reference numerals description ]
1. A breaker; 2. an oil return port; 3. an oil tank; 4. an oil cooler; 5. a control valve; 6. a first one-way valve; 7. a second one-way valve; 8. a filtering device; 801. a filter; 802. a third one-way valve; 9. and a locking valve.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the utility model. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the utility model. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present utility model, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present utility model.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
Referring to fig. 1, an embodiment of the present utility model provides an oil return line system of a crusher, including: an oil return port 2, an oil tank 3, an oil cooler 4, a control valve 5 and an oil return pipeline of the crusher 1;
wherein, return oil line includes: the first oil return branch and the second oil return branch;
the first oil return branch is sequentially communicated with the oil return port 2, the oil cooler 4 and the oil tank 3;
the second oil return branch is sequentially communicated with the oil return port 2, the control valve 5, the oil cooler 4 and the oil tank 3.
In an embodiment of the utility model, the return line in the return line system of the breaker comprises: the hydraulic oil circulation device comprises a first oil return branch and a second oil return branch, wherein the first oil return branch is sequentially communicated with an oil return port 2, an oil cooler 4 and an oil tank 3 of a breaker 1, the second oil return branch is sequentially communicated with the oil return port 2, a control valve 5, the oil cooler 4 and the oil tank 3, hydraulic oil flowing out of the oil return port 2 of the breaker 1 can be split and divided through the second oil return branch which needs to pass through the control valve 5, and then reaches the oil cooler 4, so that the distance from the second oil return branch to the oil cooler 4 is long, and the breaker 1 has oil return fluctuation, so that hydraulic oil can at least partially stagger into the oil cooler 4, thereby being beneficial to reducing the pressure and flow rate of the hydraulic oil entering the oil cooler 4, further being beneficial to improving the cooling efficiency of the oil cooler 4, and even reducing or avoiding the impact on the oil cooler 4.
When the second oil return branch is communicated with the control valve 5, the second oil return branch corresponds to the same working position of the control valve 5 as the oil supply pipeline of the crusher 1.
Referring to fig. 1, preferably, the oil return line system as described above further includes: a first check valve 6 disposed on the second return branch;
the first check valve 6 is disposed between the control valve 5 and the oil cooler 4, and the first check valve 6 is in unidirectional conduction to the oil cooler 4, and the opening pressure of the first check valve 6 is greater than the first opening pressure.
In a specific embodiment of the present utility model, the second oil return branch is provided with a first check valve 6, the first check valve 6 is preferably disposed between the control valve 5 and the oil cooler 4, and the opening pressure of the first check valve 6 is greater than the first opening pressure, so that when the oil return pressure or the oil return amount on the oil return pipeline is smaller, the impact cannot be caused to the oil cooler 4 during oil return, and the cooling efficiency of the oil cooler 4 is higher, and at this time, the hydraulic oil in the second oil return branch cannot prop up the first check valve 6, so that the hydraulic oil can only flow back to the oil tank 3 through the first oil return branch, which is beneficial to ensuring timely backflow of the hydraulic oil.
Optionally, the first check valve 6 may also be disposed between the oil return port 2 and the control valve 5, which can also achieve the above-mentioned technical effects.
In a specific embodiment, the first opening pressure is greater than or equal to 2bar and less than or equal to 3bar.
Referring to fig. 1, preferably, the oil return line system as described above further includes: a third oil return branch and a second one-way valve 7 arranged on the third oil return branch;
the third oil return branch is sequentially communicated with the control valve 5, the second one-way valve 7 and the oil tank 3, and the second one-way valve 7 is in one-way conduction to the oil tank 3;
the opening pressure of the second one-way valve 7 is greater than the second opening pressure.
In another embodiment of the utility model, the return line further comprises: the oil cooler is characterized by comprising a third oil return branch which does not pass through the oil cooler 4 and a second one-way valve 7 arranged on the third oil return branch, wherein the third oil return branch is sequentially communicated with the control valve 5, the second one-way valve 7 and the oil tank 3, the opening pressure of the second one-way valve 7 is larger than the second opening pressure, and the second opening pressure is smaller than or equal to the critical pressure which can impact the oil cooler 4. When the hydraulic oil flowing back from the oil return port 2 is overlarge and reaches the condition of being larger than the second opening pressure, the hydraulic oil can jack up the second one-way valve 7, so that the hydraulic oil can directly flow back to the oil tank 3 without passing through the oil cooler 4, the oil return pressure on the first oil return branch and the second oil return branch can be reduced at the moment, the impact on the oil cooler 4 is avoided, and the cooling efficiency of the hydraulic oil on the first oil return branch and the second oil return branch is ensured.
Optionally, the second check valve 7 may also be disposed between the oil return port 2 and the control valve 5, which can achieve the above-mentioned technical effects.
Referring to fig. 1, in particular, the return line system as described above, the second opening pressure is greater than the first opening pressure. The third oil return branch is not opened under the condition that the second opening pressure is not reached, i.e. the impact on the oil cooler 4 cannot be caused, so that the hydraulic oil passes through the oil cooler 4 as much as possible, and the cooling efficiency of the oil cooler 4 is improved.
In a specific embodiment, the first opening pressure is less than or equal to 5bar.
Referring to fig. 1, optionally, the oil return line system as described above further includes: the filtering device 8 is arranged on one side of the oil return pipeline, which is close to the oil tank 3.
In another embodiment of the utility model, the oil return pipeline system further comprises a filtering device 8, and the filtering device 8 is arranged on one side of the oil return pipeline close to the oil tank 3, so that the cleanliness of the hydraulic oil returned to the oil tank 3 can be improved through the filtering of the filtering device 8, and the service life of the hydraulic system is ensured.
Referring to fig. 1, in particular, the return line system described above, the filtering device 8 comprises: a filter 801 and a third check valve 802 connected in parallel with the filter 801, wherein the third check valve 802 is in one-way conduction to the oil tank 3.
In another embodiment of the present utility model, the filtering device 8 includes a filter 801 and a third check valve 802 connected in parallel with the filter 801, so that when the flow rate of the filter 801 entering the oil tank 3 is low due to more impurities in the filter 801, the pressure of the hydraulic oil in front of the filter 801 is increased, and when the pressure reaches the opening pressure of the third check valve 802, the hydraulic oil can flow back to the oil tank 3 through the third check valve 802, so as to ensure the smoothness of the whole oil return pipeline system.
In a specific embodiment, the filtering device 8 comprises at least one combination of a filter 801 and a third check valve 802, and when there is only one combination of a filter 801 and a third check valve 802, all the oil return branches corresponding to the above embodiment return to the oil tank 3 through the combination of the filter 801 and the third check valve 802; however, with the combination of the plurality of filters 801 and the third check valve 802, the return branches in the above embodiments each return to the tank 3 through one of the combinations of the filters 801 and the third check valve 802, or one return branch such as the third return branch returns to the tank 3 through one of the combinations of the filters 801 and the third check valve 802, and the other return branches return to the tank 3 through the other combination of the filters 801 and the third check valve 802.
Referring to fig. 1, specifically, the oil return line system as described above further includes: a locking valve 9 arranged at the oil return port 2.
In another embodiment of the present utility model, the oil return pipeline system further includes a locking valve 9 disposed at the oil return port 2, and by changing the state of the locking valve 9, the on-off state of the whole oil return management system can be controlled, so as to facilitate the replacement of the crusher 1.
Referring to fig. 1, another embodiment of the present utility model also provides a crushing machine, comprising: the breaker 1 and the return line system as described above;
wherein, the breaker is in communication with the return line system.
The crushing machine provided in the embodiment of the present utility model includes: the breaker 1 and the oil return pipeline system described above enable the breaker to reduce the pressure and flow rate of hydraulic oil entering the oil cooler 4 during breaking operations, thereby facilitating the improvement of the cooling efficiency of the oil cooler 4 and reducing or even avoiding impact on the oil cooler 4.
Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It is further 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 "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (8)
1. An oil return line system for a crusher, comprising: an oil return port (2), an oil tank (3), an oil cooler (4), a control valve (5) and an oil return pipeline of the crusher (1);
wherein, return oil line includes: the first oil return branch and the second oil return branch;
the first oil return branch is sequentially communicated with the oil return port (2), the oil cooler (4) and the oil tank (3);
the second oil return branch is sequentially communicated with the oil return port (2), the control valve (5), the oil cooler (4) and the oil tank (3).
2. The oil return line system of claim 1, further comprising: a first one-way valve (6) arranged on the second oil return branch;
the first one-way valve (6) is arranged between the control valve (5) and the oil cooler (4), the first one-way valve (6) is in one-way conduction to the oil cooler (4), and the opening pressure of the first one-way valve (6) is higher than the first opening pressure.
3. The return line system of claim 2, wherein the return line further comprises: a third oil return branch and a second one-way valve (7) arranged on the third oil return branch;
the third oil return branch is sequentially communicated with the control valve (5), the second one-way valve (7) and the oil tank (3), and the second one-way valve (7) is in one-way conduction to the oil tank (3);
the opening pressure of the second one-way valve (7) is higher than the second opening pressure.
4. The return line system of claim 3, wherein the second cracking pressure is greater than the first cracking pressure.
5. The oil return line system according to any one of claims 1 to 4, further comprising: the filtering device (8) is arranged on one side, close to the oil tank (3), of the oil return pipeline.
6. -return line system according to claim 5, characterized in that the filtering device (8) comprises: a filter (801) and a third one-way valve (802) connected with the filter (801) in parallel, wherein the third one-way valve (802) is communicated to the oil tank (3) in a one-way.
7. The oil return line system according to any one of claims 1 to 4, further comprising: and a locking valve (9) arranged at the oil return port (2).
8. A crushing machine, comprising: crusher (1) and return line system according to any one of claims 1 to 7;
wherein, the breaker is in communication with the return line system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320481230.9U CN219587902U (en) | 2023-03-14 | 2023-03-14 | Oil return pipeline system of crusher and crushing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320481230.9U CN219587902U (en) | 2023-03-14 | 2023-03-14 | Oil return pipeline system of crusher and crushing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219587902U true CN219587902U (en) | 2023-08-25 |
Family
ID=87698772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320481230.9U Active CN219587902U (en) | 2023-03-14 | 2023-03-14 | Oil return pipeline system of crusher and crushing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219587902U (en) |
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2023
- 2023-03-14 CN CN202320481230.9U patent/CN219587902U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 264006 No. 28 Wuzhishan Road, Yantai economic and Technological Development Zone, Shandong Patentee after: Aiqiti Modern Diwanlun Construction Machinery Co.,Ltd. Country or region after: China Address before: 264006 No. 28 Wuzhishan Road, Yantai economic and Technological Development Zone, Shandong Patentee before: DOOSAN INFRACORE (CHINA) Co.,Ltd. Country or region before: China |