CN220950969U - Single-cylinder bolt hydraulic control system and telescopic arm - Google Patents
Single-cylinder bolt hydraulic control system and telescopic arm Download PDFInfo
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- CN220950969U CN220950969U CN202323146157.9U CN202323146157U CN220950969U CN 220950969 U CN220950969 U CN 220950969U CN 202323146157 U CN202323146157 U CN 202323146157U CN 220950969 U CN220950969 U CN 220950969U
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- 239000003921 oil Substances 0.000 claims abstract description 235
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 62
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000010276 construction Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The application relates to the field of engineering machinery and discloses a single-cylinder bolt hydraulic control system and a telescopic arm, wherein the single-cylinder bolt hydraulic control system comprises a telescopic oil cylinder, an arm pin oil cylinder, a cylinder pin oil cylinder, a high-temperature hydraulic oil source, a first control oil way, a second control oil way and an auxiliary oil way, the telescopic oil cylinder is provided with a core pipe, the first control oil way is respectively communicated with the core pipe and the high-temperature hydraulic oil source, the second control oil way is respectively communicated with the core pipe, the second control oil way is also respectively connected with the arm pin oil cylinder and the cylinder pin oil cylinder, and the auxiliary oil way is respectively detachably communicated with the first control oil way and the second control oil way. When the single-cylinder bolt hydraulic control system is in an ultralow temperature environment, high-temperature hydraulic oil provided by the high-temperature hydraulic oil source can sequentially flow through the first control oil way, the core pipe, the second control oil way and the auxiliary oil way and then return to the high-temperature hydraulic oil source and continuously circulate, so that the temperature of the hydraulic oil in the single-cylinder bolt hydraulic control system can be effectively increased.
Description
Technical Field
The application belongs to the technical field of engineering machinery, and particularly relates to a single-cylinder bolt hydraulic control system and a telescopic arm applying the single-cylinder bolt hydraulic control system.
Background
At present, a large-tonnage crane generally adopts a single-cylinder bolt type telescopic arm, a piston rod of a telescopic cylinder on the telescopic arm is connected with a basic arm, and the action of the telescopic arm is completed by mutually matching two cylinder pins on a cylinder head with arm pins between adjacent sections of telescopic arms.
In the existing single-cylinder bolt hydraulic control system, the pulling and inserting actions of the arm pin and the cylinder pin are respectively realized through the driving of the arm pin oil cylinder and the cylinder pin oil cylinder, and the high-temperature hydraulic oil source is controlled to supply oil to the arm pin oil cylinder and the cylinder pin oil cylinder respectively through the core tube inside the telescopic oil cylinder. When the single-cylinder bolt hydraulic control system is in an ultralow temperature environment, the temperature of hydraulic oil in the single-cylinder bolt hydraulic control system is low, the viscosity can be obviously increased, the normal operation of an arm pin oil cylinder, a cylinder pin oil cylinder and a valve body in the system is influenced, and the telescopic arm is easy to retract abnormally.
Disclosure of utility model
The application aims to provide a single-cylinder bolt hydraulic control system, which aims to solve the technical problem that an existing single-cylinder bolt hydraulic control system cannot work normally in an ultralow temperature environment, so that a telescopic arm cannot extend and retract normally.
In order to achieve the above object, according to one aspect of the present application, there is provided a single cylinder plug hydraulic control system including a telescopic cylinder, an arm pin cylinder, and a cylinder pin cylinder, the telescopic cylinder being provided with a core tube, the single cylinder plug hydraulic control system further including:
A high temperature hydraulic oil source;
the first control oil way is respectively communicated with the first end of the core pipe and the high-temperature hydraulic oil source;
The second control oil way is communicated with the second end of the core tube, is also respectively connected with the arm pin oil cylinder and the cylinder pin oil cylinder, and is selectively communicated with the arm pin oil cylinder or the cylinder pin oil cylinder;
And the auxiliary oil circuit is detachably communicated with the first control oil circuit and the second control oil circuit respectively.
Optionally, the first control oil path includes:
The first control valve comprises a first oil inlet, a first oil return port and a first working oil port, the first working oil port is communicated with the first end of the core tube, and the first oil inlet is communicated with the high-temperature hydraulic oil source;
the oil return oil way is respectively communicated with the first oil return port and the high-temperature hydraulic oil source;
wherein, auxiliary oil circuit with oil return oil circuit detachably intercommunication.
Optionally, the auxiliary oil path is connected with the oil return oil path through a first quick connector.
Optionally, the first control valve further comprises a second working oil port, and the second working oil port is communicated with the first end of the core tube.
Optionally, the first control oil way further comprises a heating oil way, the heating oil way is respectively communicated with the second working oil port and the first end of the core tube, and a heating device capable of heating hydraulic oil is arranged on the heating oil way.
Optionally, the heating device is an overflow valve.
Optionally, the second control oil way includes a second control valve, the second control valve includes a second oil inlet, a third working oil port and a fourth working oil port, the second oil inlet is communicated with the second end of the core pipe, the third working oil port is communicated with the cylinder pin oil cylinder, the fourth working oil port is communicated with the arm pin oil cylinder, and the auxiliary oil way is selectively communicated with the third working oil port or the fourth working oil port.
Optionally, the auxiliary oil path is selectively connected with the third working oil port or the fourth working oil port through a second quick connector.
Optionally, the auxiliary oil path includes a hose, and two ends of the hose are detachably communicated with the first control oil path and the second control oil path, respectively, so as to form the auxiliary oil path.
The application further provides a telescopic arm which comprises the single-cylinder bolt hydraulic control system.
Through the technical scheme, the single-cylinder bolt hydraulic control system and the telescopic arm provided by the application have the following beneficial effects:
In the single-cylinder bolt hydraulic control system, a high-temperature hydraulic oil source, a first control oil way, a core pipe, a second control oil way and an auxiliary oil way form a hydraulic oil circulation loop. When the single-cylinder bolt hydraulic control system is in an ultralow temperature environment, high-temperature hydraulic oil provided by the high-temperature hydraulic oil source can sequentially flow through the first control oil way, the core pipe, the second control oil way and the auxiliary oil way and then returns to the high-temperature hydraulic oil source to be continuously circulated, so that the temperature of hydraulic oil in the single-cylinder bolt hydraulic control system can be effectively increased, the arm pin oil cylinder, the cylinder pin oil cylinder and valve bodies on all control oil ways can normally work, and the telescopic arm can normally stretch out and draw back.
Additional features and advantages of embodiments of the application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the embodiments of the application. Other figures may be made from the structures shown in these figures without inventive effort for a person of ordinary skill in the art. In the drawings:
FIG. 1 is a schematic diagram of a single cylinder latch hydraulic control system according to one embodiment of the present application;
fig. 2 is a schematic structural diagram of a single cylinder latch hydraulic control system according to another embodiment of the present application.
Description of the reference numerals
1. Telescopic cylinder 2 arm pin cylinder
3. High-temperature hydraulic oil source for cylinder pin oil cylinder 4
5. Auxiliary oil circuit 6 first control valve
7. 8 Core tubes of oil return way
9. Second control valve of heating device 10
11. Pressure regulating valve
Detailed Description
The following describes specific embodiments of the present application in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the application, are not intended to limit the application.
The single cylinder latch hydraulic control system of the present application is described below with reference to the accompanying drawings.
The application firstly provides a single-cylinder bolt hydraulic control system.
In one embodiment, referring to fig. 1 and 2, the single cylinder latch hydraulic control system includes a telescopic cylinder 1, an arm pin cylinder 2, a cylinder pin cylinder 3, a high temperature hydraulic oil source 4, a first control oil path, a second control oil path and an auxiliary oil path 5, wherein the telescopic cylinder 1 is provided with a core pipe 8, the first control oil path is respectively communicated with a first end of the core pipe 8 and the high temperature hydraulic oil source 4, the second control oil path is respectively communicated with a second end of the core pipe 8, the second control oil path is also respectively connected with the arm pin cylinder 2 and the cylinder pin cylinder 3, and is selectively communicated with the arm pin cylinder 2 or the cylinder pin cylinder 3, and the auxiliary oil path 5 is respectively detachably communicated with the first control oil path and the second control oil path.
In the single cylinder plug hydraulic control system of the present embodiment, the high temperature hydraulic oil source 4, the first control oil passage, the core pipe 8, the second control oil passage, and the auxiliary oil passage 5 constitute a hydraulic oil circulation circuit. When the single-cylinder bolt hydraulic control system is in an ultralow temperature environment, high-temperature hydraulic oil provided by the high-temperature hydraulic oil source 4 can sequentially flow through the first control oil way, the core pipe 8, the second control oil way and the auxiliary oil way 5 and then return to the high-temperature hydraulic oil source 4 and continuously circulate, so that the temperature of the hydraulic oil in the single-cylinder bolt hydraulic control system can be effectively increased, the valve body of the arm pin oil cylinder 2, the cylinder pin oil cylinder 3 and each control oil way can work normally, and the telescopic arm can stretch out and draw back normally.
In practical application, the high-temperature hydraulic oil source 4 can be a hydraulic oil tank or other hydraulic systems, and the hydraulic oil can be heated by a special heating device or an engine of the crane. When the single-cylinder bolt hydraulic control system can work normally, the auxiliary oil circuit 5 can be disassembled, and hydraulic oil is input for the work of the arm pin oil cylinder 2 and the cylinder pin oil cylinder 3 through the high-temperature hydraulic oil source 4. When the single-cylinder bolt hydraulic control system cannot normally work due to too low hydraulic oil temperature, the auxiliary oil circuit 5 can be installed, and at the moment, the high-temperature hydraulic oil source 4, the first control oil circuit, the core pipe 8, the second control oil circuit and the auxiliary oil circuit 5 form a hydraulic oil circulation loop, high-temperature hydraulic oil in the high-temperature hydraulic oil source 4 can flow rapidly, rapid lifting of the hydraulic oil temperature in the single-cylinder bolt hydraulic control system is realized, and the single-cylinder bolt hydraulic control system can quickly recover to normal work.
In one embodiment, referring to fig. 1 and 2, the first control oil path includes a first control valve 6 and an oil return oil path 7, the first control valve 6 includes a first oil inlet, a first oil return port and a first working oil port, the first working oil port is communicated with a first end of the core pipe 8, the first oil inlet is communicated with the high-temperature hydraulic oil source 4, and the oil return oil path 7 is respectively communicated with the first oil return port and the high-temperature hydraulic oil source 4; wherein the auxiliary oil passage 5 is detachably communicated with the oil return oil passage 7.
Specifically, a hydraulic pump may be connected between the first oil inlet and the high-temperature hydraulic oil source 4, and under the driving of the hydraulic pump, the high-temperature hydraulic oil of the high-temperature hydraulic oil source 4 enters the first control valve 6 through the first oil inlet and flows into the core pipe 8 from the first working oil port. Meanwhile, the hydraulic oil in the auxiliary oil path 5 can flow back to the high-temperature hydraulic oil source 4 through the return oil path 7.
Specifically, the first control valve 6 may be a reversing valve, and has two working states of conducting the first working oil port with the first oil return port and conducting the first working oil port with the first oil inlet. It will be appreciated that the first control valve 6 is well known to those skilled in the art and is not part of the core development of the present application, and therefore the structure and operation thereof will not be described in detail herein.
In one embodiment, the auxiliary oil passage 5 is connected to the return oil passage 7 by a first quick joint. Therefore, the auxiliary oil way 5 can be detachably and quickly connected with the oil return oil way 7, and the convenience of dismounting the auxiliary oil way 5 is effectively improved.
It will be appreciated that the construction of the first quick connector itself is well known to those skilled in the art and is not central to the improvement of the present application, and therefore, the specific construction and principle thereof will not be repeated.
In one embodiment, the first control valve 6 further comprises a second working port in communication with the first end of the core tube 8.
Specifically, the first control valve 6 has three working states of a first working oil port being communicated with the first oil return port, a first working oil port being communicated with the first oil inlet, and a second working oil port being communicated with the first oil inlet.
It will be appreciated that the high temperature hydraulic oil of the high temperature hydraulic oil source 4 may flow into the core tube 8 through the first working port or the second working port of the first control valve 6, so arranged that in actual use, a pressure regulating valve 11, such as a back pressure valve, may be connected between the first working port and the first end of the core tube 8. When the single-cylinder bolt hydraulic control system works normally, the first control valve 6 can enable the first working oil port to be communicated with the first oil inlet, so that high-temperature hydraulic oil of the high-temperature hydraulic oil source 4 enters the core pipe 8 after passing through the first working oil port flow path pressure regulating valve 11, and the pressures of the input arm pin oil cylinder 2 and the cylinder pin oil cylinder 3 can be regulated and controlled. When the single-cylinder bolt hydraulic control system cannot work normally due to too low hydraulic oil temperature, the first control valve 6 can enable the second working oil port to be communicated with the first oil inlet, so that high-temperature hydraulic oil of the high-temperature hydraulic oil source 4 can directly flow into the core tube 8 through the second working oil port.
In one embodiment, referring to fig. 1 and 2, the first control oil path further includes a heating oil path, which is respectively communicated with the second working oil port and the first end of the core pipe 8, and a heating device 9 capable of heating hydraulic oil is disposed on the heating oil path. So set up, the high temperature hydraulic oil of high temperature hydraulic oil source 4 can be by heating device 9 further heating before getting into core pipe 8, through this, can further improve the interior hydraulic oil temperature lifting efficiency of single cylinder bolt hydraulic control system.
Further, the heating device 9 is an overflow valve.
In one embodiment, the second control oil path includes a second control valve 10, the second control valve 10 includes a second oil inlet, a third working oil port, and a fourth working oil port, the second oil inlet communicates with the second end of the core pipe 8, the third working oil port communicates with the cylinder pin cylinder 3, the fourth working oil port communicates with the arm pin cylinder 2, and the auxiliary oil path 5 selectively communicates with the third working oil port or the fourth working oil port.
It will be appreciated that in the present embodiment, in practical application, there are two communication modes of the auxiliary oil passage 5 and the second control oil passage, one of which is shown in fig. 1, the auxiliary oil passage 5 is communicated with the fourth working oil port, and the other is shown in fig. 2, the auxiliary oil passage 5 is communicated with the third working oil port.
Specifically, the second control valve 10 may be a reversing valve, and has two working states of conducting the second oil inlet and the third working oil port and conducting the second oil inlet and the fourth working oil port. The second control valve 10 is well known to those skilled in the art and does not form part of the core development of the application, and therefore its structure and working principle are not described in detail here.
In one embodiment, the auxiliary oil passage 5 is selectively connected to the third or fourth working oil port through a second quick joint. The auxiliary oil way 5 is detachably and quickly connected with the third working oil port or the fourth working oil port, and the convenience of dismounting the auxiliary oil way 5 is effectively improved.
It will be appreciated that the construction of the second quick connector itself is well known to those skilled in the art and is not central to the improvement of the present application, and therefore, the specific construction and principle thereof will not be repeated.
In one embodiment, the auxiliary oil passage 5 includes a hose, both ends of which are detachably communicated with the first control oil passage and the second control oil passage, respectively, to form the auxiliary oil passage 5. By forming the auxiliary oil passage 5 by the hose in this manner, the convenience in mounting the auxiliary oil passage 5 can be further improved.
The application also provides a telescopic arm.
In one embodiment, the telescopic boom includes the single cylinder latch hydraulic control system described above.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The utility model provides a single cylinder bolt hydraulic control system, includes flexible hydro-cylinder (1), arm round pin hydro-cylinder (2) and jar round pin hydro-cylinder (3), flexible hydro-cylinder (1) are equipped with core pipe (8), its characterized in that, single cylinder bolt hydraulic control system still includes:
a high temperature hydraulic oil source (4);
The first control oil way is respectively communicated with the first end of the core pipe (8) and the high-temperature hydraulic oil source (4);
The second control oil way is communicated with the second end of the core tube (8), is also respectively connected with the arm pin oil cylinder (2) and the cylinder pin oil cylinder (3), and is selectively communicated with the arm pin oil cylinder (2) or the cylinder pin oil cylinder (3);
And the auxiliary oil circuit (5) is detachably communicated with the first control oil circuit and the second control oil circuit respectively.
2. The single cylinder deadbolt hydraulic control system of claim 1, wherein said first control oil circuit includes:
The first control valve (6) comprises a first oil inlet, a first oil return port and a first working oil port, the first working oil port is communicated with the first end of the core pipe (8), and the first oil inlet is communicated with the high-temperature hydraulic oil source (4);
An oil return way (7) which is respectively communicated with the first oil return port and the high-temperature hydraulic oil source (4);
wherein, auxiliary oil circuit (5) with oil return oil circuit (7) detachably intercommunication.
3. The single cylinder plug hydraulic control system according to claim 2, characterized in that the auxiliary oil circuit (5) is connected with the return oil circuit (7) by a first quick joint.
4. The single cylinder bolt hydraulic control system of claim 2 wherein the first control valve (6) further comprises a second working port in communication with the first end of the core tube (8).
5. The single-cylinder plug hydraulic control system according to claim 4, wherein the first control oil passage further comprises a heating oil passage, the heating oil passage is respectively communicated with the second working oil port and the first end of the core tube (8), and a heating device (9) capable of heating hydraulic oil is arranged on the heating oil passage.
6. The single cylinder plug hydraulic control system according to claim 5, characterized in that the heating means (9) is an overflow valve.
7. The single cylinder plug hydraulic control system according to claim 1, characterized in that the second control oil path includes a second control valve (10), the second control valve (10) includes a second oil inlet, a third working oil port and a fourth working oil port, the second oil inlet communicates with the second end of the core tube (8), the third working oil port communicates with the cylinder pin cylinder (3), the fourth working oil port communicates with the arm pin cylinder (2), and the auxiliary oil path (5) selectively communicates with the third working oil port or the fourth working oil port.
8. The single cylinder plug hydraulic control system according to claim 7, characterized in that the auxiliary oil circuit (5) is selectively connected with the third or fourth working oil port through a second quick joint.
9. The single cylinder plug hydraulic control system according to claim 1, wherein the auxiliary oil passage (5) includes a hose, both ends of which are detachably communicated with the first control oil passage and the second control oil passage, respectively, to form the auxiliary oil passage (5).
10. A telescopic boom, characterized in that it comprises a single cylinder bolt hydraulic control system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323146157.9U CN220950969U (en) | 2023-11-21 | 2023-11-21 | Single-cylinder bolt hydraulic control system and telescopic arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323146157.9U CN220950969U (en) | 2023-11-21 | 2023-11-21 | Single-cylinder bolt hydraulic control system and telescopic arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220950969U true CN220950969U (en) | 2024-05-14 |
Family
ID=91005075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323146157.9U Active CN220950969U (en) | 2023-11-21 | 2023-11-21 | Single-cylinder bolt hydraulic control system and telescopic arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220950969U (en) |
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2023
- 2023-11-21 CN CN202323146157.9U patent/CN220950969U/en active Active
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