CN211901135U - Oil cylinder control valve set of ship unloader - Google Patents
Oil cylinder control valve set of ship unloader Download PDFInfo
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- CN211901135U CN211901135U CN202020259689.0U CN202020259689U CN211901135U CN 211901135 U CN211901135 U CN 211901135U CN 202020259689 U CN202020259689 U CN 202020259689U CN 211901135 U CN211901135 U CN 211901135U
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Abstract
The utility model discloses an unloader hydro-cylinder valve unit, it includes valve block, first balanced valve, the balanced valve of second, first sequence valve, second sequence valve. The valve block is provided with an A port, a B port, a C port and a D port. The first balance valve has a first inlet, a first outlet and a first pilot port, the first inlet is in communication with port a, and the first pilot port is in communication with port B. The first sequence valve is composed of a first check valve and a first overflow valve which are connected in parallel and have opposite flow directions, a first outlet is communicated with an inlet of the first check valve, and an outlet of the first check valve is communicated with the port C. The second balance valve is provided with a second inlet, a second outlet and a second pilot port, the second inlet is communicated with the port B, and the second pilot port is communicated with the port A. The second sequence valve is composed of a second one-way valve and a second overflow valve which are connected in parallel and have opposite flow directions, a second outlet is communicated with an inlet of the second one-way valve, and an outlet of the second one-way valve is communicated with the D port. The device can ensure that the working oil cylinder can stably extend and retract.
Description
Technical Field
The utility model relates to an unloader cylinder control valves.
Background
The ship unloader is a high-efficiency continuous bulk cargo ship unloading machine. Typically, the material being transported by the ship unloader is a bulk material. The ship unloader can greatly improve the unloading efficiency, reduce the dust pollution and keep the environment clean. The stability of the boom of the ship unloader during transportation is very important. The oil cylinder control valve group is widely used in arm support oil cylinders, and is an important part of an arm support control system of a ship unloader. The existing ship unloader boom cylinder control valve group has the defects of large volume, unstable descending action of the cylinder, high maintenance cost and inconvenient disassembly.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an oil cylinder control valve group of ship unloader in order to overcome the unstable defect of the flexible action of the oil cylinder of ship unloader among the prior art.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides a ship unloaders hydro-cylinder valve unit which characterized in that, it includes: the valve comprises a valve block, and a first balance valve, a second balance valve, a first sequence valve and a second sequence valve which are arranged on the valve block;
the valve block is provided with an A port and a B port for oil inlet or oil return, a C port and a D port for connecting two ends of the working oil cylinder,
the first balance valve is a two-position two-way valve, the first balance valve is provided with a first inlet, a first outlet and a first pilot port, and when the first balance valve is in an initial state, the first inlet is communicated with the first outlet in a one-way mode; when the first pilot port supplies oil, the first outlet is communicated with the first inlet in a one-way throttling way, the first inlet is communicated with the port A, the first outlet is communicated with the first sequence valve, and the first pilot port is communicated with the port B;
the first sequence valve consists of a first check valve and a first overflow valve which are connected in parallel and have opposite flow directions, the first outlet is communicated with the inlet of the first check valve and the outlet of the first overflow valve, and the outlet of the first check valve and the inlet of the first overflow valve are communicated with the port C;
the second balance valve is a two-position two-way valve, the second balance valve is provided with a second inlet, a second outlet and a second pilot port, and when the second balance valve is in an initial state, the second inlet is communicated with the second outlet in a one-way mode; when the second pilot port supplies oil, the second outlet is communicated with the second inlet in a one-way throttling way, the second inlet is communicated with the port B, the second outlet is communicated with the second sequence valve, and the second pilot port is communicated with the port A;
the second sequence valve is composed of a second check valve and a second overflow valve which are connected in parallel and have opposite flow directions, the second outlet is communicated with the inlet of the second check valve and the outlet of the second overflow valve, and the outlet of the second check valve and the inlet of the second overflow valve are communicated with the port D.
Preferably, the valve block is further provided with an oil discharge port for connecting an external oil tank, the first overflow valve and the second overflow valve are both provided with pressure reduction ports, and the pressure reduction ports of the first overflow valve and the second overflow valve are communicated with the oil discharge port.
Preferably, the unloader oil cylinder control valve group further comprises a first damper and a second damper, the first damper is installed between the port a and the second pilot port, and the second damper is installed between the port B and the first pilot port.
Preferably, the control valve set of the oil cylinder of the ship unloader further comprises a third overflow valve, wherein an inlet of the third overflow valve is communicated with the port C, and an outlet of the third overflow valve is communicated with the oil discharge port.
Preferably, the valve block is further provided with an E port for connecting a working oil cylinder, and the E port is communicated with the C port.
Preferably, the valve block is further provided with a first detection port for connecting an external detection device, and the first detection port is communicated with the port C.
Preferably, the cylinder control valve set of the ship unloader further comprises a fourth overflow valve, an inlet of the fourth overflow valve is communicated with the port D, and an outlet of the fourth overflow valve is communicated with the oil discharge port.
Preferably, an opening F used for connecting a working oil cylinder is further arranged on the valve block, and the opening F is communicated with the opening D.
Preferably, the valve block is further provided with a second detection port for connecting an external detection device, and the second detection port is communicated with the port D.
Preferably, the valve block is further provided with a mounting hole for fixing the valve block with external equipment.
On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.
The utility model discloses an actively advance the effect and lie in: because the first balance valve, the second balance valve, the first sequence valve and the second sequence valve are combined with each other and have the functions of throttling and controlling oil pressure, the external working oil cylinder can stably extend and retract under the action of the oil cylinder control valve.
Drawings
Fig. 1 is a schematic perspective view of a control valve set of an oil cylinder of a ship unloader according to a preferred embodiment of the present invention.
Fig. 2 is a rear view of a cylinder control valve assembly of the ship unloader according to the preferred embodiment of the present invention.
Fig. 3 is a left side view of the cylinder control valve assembly of the ship unloader according to the preferred embodiment of the present invention.
Fig. 4 is a hydraulic schematic diagram of a control valve set of the oil cylinder of the ship unloader in the preferred embodiment of the present invention.
Description of reference numerals:
A port 110
E port 160
F port 180
First counter balance valve 200
The first inlet 210
Second balanced valve 300
Second excess flow valve 520
Detailed Description
The present invention is further illustrated by way of the following examples, which are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, a cylinder control valve assembly of a ship unloader comprises: a valve block 100, and a first counter valve 200, a second counter valve 300, a first sequence valve 400, and a second sequence valve 500 mounted on the valve block 100. The valve block 100 is provided with an a port 110 and a B port 120 for oil inlet or oil return, and a C port 130 and a D port 140 for connecting both ends of the working cylinder. The first balanced valve 200 is a two-position, two-way valve, the first balanced valve 200 having a first inlet 210, a first outlet 220, and a first pilot port 230. When the first balance valve 200 is in the initial state, the first inlet 210 is in one-way communication with the first outlet 220; when the first pilot port 230 supplies oil, the first outlet 220 is in one-way throttling communication with the first inlet 210, the first inlet 210 is communicated with the port a 110, the first outlet 220 is communicated with the first sequence valve 400, and the first pilot port 230 is communicated with the port B120. The first sequence valve 400 is composed of a first check valve 410 and a first overflow valve 420 which are connected in parallel and have opposite flow directions, a first outlet 220 is communicated with an inlet of the first check valve 410 and an outlet of the first overflow valve 420, and an outlet of the first check valve 410 and an inlet of the first overflow valve 420 are communicated with the port C130. The second balanced valve 300 is a two-position, two-way valve, the second balanced valve 300 having a second inlet 310, a second outlet 320, and a second pilot port 330. When the second balance valve 300 is in the initial state, the second inlet 310 is communicated with the second outlet 320 in a one-way mode; when the second pilot port 330 supplies oil, the second outlet 320 is in one-way throttling communication with the second inlet 310, the second inlet 310 is communicated with the port B120, the second outlet 320 is communicated with the second sequence valve 500, and the second pilot port 330 is communicated with the port a 110. The second sequence valve 500 is composed of a second check valve 510 and a second overflow valve 520 which are connected in parallel and have opposite flow directions, a second outlet 320 is communicated with an inlet of the second check valve 510 and an outlet of the second overflow valve 520, and an outlet of the second check valve 510 and an inlet of the second overflow valve 520 are communicated with the D port 140.
In this scheme, the process of utilizing hydro-cylinder valve unit control hydro-cylinder motion is as follows: when the a port 110 is supplied with hydraulic oil, the hydraulic oil passes through the a port 110 to reach the first balance valve 200, and the first balance valve 200 is in an initial state, and the hydraulic oil flows from the first inlet port 210 to the first outlet port 220 and moves to the first sequence valve 400. Hydraulic oil flows from the inlet of the first check valve 410 to the outlet of the first check valve 410 in the first sequence valve 400 and is delivered to the C-port 130 and injected into the cylinder, pushing the piston in the cylinder to move toward the other end. At this time, the hydraulic oil at the other end of the cylinder is output from the D port 140, and the valve element of the second relief valve 520 is moved by the hydraulic pressure, so that the second relief valve 520 is opened, and the hydraulic oil flows from the inlet to the outlet of the second relief valve 520 and is delivered to the second sequence valve 500. Since the second pilot port 330 of the second sequence valve 500 is communicated with the port a 110, the second outlet 320 is in one-way throttling communication with the second inlet 310 under the action of the oil pressure of the port a 110, and the hydraulic oil can smoothly pass through the second sequence valve 500 and flow back to the port B120. The above hydraulic oil flow process is a process in which the control valve group controls the piston in the working cylinder to move from the port connected to the C port 130 to the port connected to the D port 140. When the piston in the working oil cylinder needs to move reversely, the port B120 is an oil inlet, the port A110 is an oil return port, and the flowing process of the hydraulic oil is opposite to the process. In this embodiment, the oil pressure and flow rate of the oil cylinder during operation can be ensured to be stable and stable by controlling the hydraulic oil return speed by using the throttling elements in the first balance valve 200 and the second balance valve 300 and controlling the oil pressure of the first overflow valve 420 in the first sequence valve 400 and the second overflow valve 520 in the second sequence valve 500, so that the oil cylinder operates stably. In addition, the structure that the valve block is connected with the hydraulic element is adopted, the structure is compact, the disassembly is convenient, and the maintenance cost is low.
In this embodiment, the valve block 100 is further provided with an oil discharge port 150 for connecting an external oil tank, the first overflow valve 420 and the second overflow valve 520 are both provided with pressure reduction ports, and the pressure reduction ports of the first overflow valve 420 and the second overflow valve 520 are communicated with the oil discharge port 150. The oil discharge port 150 is connected to the oil tank so that the oil pressure is zero. The relief pressure of the first and second relief valves 420 and 520 can be accurately controlled by communicating the relief ports of the first and second relief valves 420 and 520 with the oil discharge port 150, so that the relief pressure is consistent with a set value.
In addition, the cylinder control valve group of the ship unloader further comprises a first damper 600 and a second damper 700, wherein the first damper 600 is installed between the port A110 and the second pilot port 330, and the second damper 700 is installed between the port B120 and the first pilot port 230. The damper has a function of controlling the flow rate of the oil. The first damper 600 and the second damper 700 can prevent the hydraulic oil from impacting the second pilot port 330 and the first pilot port 230, and prevent the first balance valve 200 and the second balance valve 300 from being damaged.
When the port a 110 inputs hydraulic oil, if the oil cylinder fails or the oil inlet and return pipelines and the hydraulic elements on the pipelines fail, the oil pressure of the oil inlet pipeline is likely to rise continuously, and the hydraulic elements are further damaged. In order to avoid the problems, the control valve set of the oil cylinder of the ship unloader further comprises a third overflow valve 800, wherein the inlet of the third overflow valve 800 is communicated with the C port 130, and the outlet of the third overflow valve 800 is communicated with the oil discharge port 150. In this embodiment, when the oil pressure of the C port 130 exceeds the set oil pressure of the third relief valve 800, the third relief valve 800 is turned on to start oil drainage, and the oil pressure does not rise any more. Similarly, in order to prevent the oil pressure at the other end of the oil cylinder from being too high, in the present scheme, the oil cylinder control valve group of the ship unloader further comprises a fourth overflow valve 900, an inlet of the fourth overflow valve 900 is communicated with the D port 140, and an outlet of the fourth overflow valve 900 is communicated with the oil discharge port 150.
In the scheme, the valve block 100 is further provided with an E port 160 for connecting a working oil cylinder, and the E port 160 is communicated with the C port 130. The E-port 160 may serve two functions: the first one is that the hydraulic cylinder can be connected with another working cylinder, so that the two working cylinders can act simultaneously; secondly, the C port 130 and the hydraulic oil cylinder can be connected to the same end of the same oil cylinder together, so that the flow rate of the hydraulic oil is increased, and the obstruction of the single oil port to the flow rate is avoided. In addition, the valve block 100 is also provided with an F port 180 for connecting a working oil cylinder, and the F port 180 is communicated with the D port 140. The F port 180 functions the same as the E port 160.
In order to accurately detect the working oil pressure at the two ends of the oil cylinder, the valve block 100 is further provided with a first detection port 170 and a second detection port 190 which are used for connecting an external detection device, the first detection port 170 is communicated with the port C130, and the second detection port 190 is communicated with the port D140. The first detection port 170 and the second detection port 190 may be connected to an oil pressure display device, respectively.
In order to fix the valve block 100 to an external device, the valve block 100 is further provided with a plurality of mounting holes 1000, and the number of the mounting holes 1000 is multiple.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. The utility model provides a ship unloaders hydro-cylinder valve unit which characterized in that, it includes: the valve comprises a valve block, and a first balance valve, a second balance valve, a first sequence valve and a second sequence valve which are arranged on the valve block;
the valve block is provided with an A port and a B port for oil inlet or oil return, a C port and a D port for connecting two ends of the working oil cylinder,
the first balance valve is a two-position two-way valve, the first balance valve is provided with a first inlet, a first outlet and a first pilot port, and when the first balance valve is in an initial state, the first inlet is communicated with the first outlet in a one-way mode; when the first pilot port supplies oil, the first outlet is communicated with the first inlet in a one-way throttling way, the first inlet is communicated with the port A, the first outlet is communicated with the first sequence valve, and the first pilot port is communicated with the port B;
the first sequence valve consists of a first check valve and a first overflow valve which are connected in parallel and have opposite flow directions, the first outlet is communicated with the inlet of the first check valve and the outlet of the first overflow valve, and the outlet of the first check valve and the inlet of the first overflow valve are communicated with the port C;
the second balance valve is a two-position two-way valve, the second balance valve is provided with a second inlet, a second outlet and a second pilot port, and when the second balance valve is in an initial state, the second inlet is communicated with the second outlet in a one-way mode; when the second pilot port supplies oil, the second outlet is communicated with the second inlet in a one-way throttling way, the second inlet is communicated with the port B, the second outlet is communicated with the second sequence valve, and the second pilot port is communicated with the port A;
the second sequence valve is composed of a second check valve and a second overflow valve which are connected in parallel and have opposite flow directions, the second outlet is communicated with the inlet of the second check valve and the outlet of the second overflow valve, and the outlet of the second check valve and the inlet of the second overflow valve are communicated with the port D.
2. The unloader cylinder control valve group according to claim 1, wherein the valve block is further provided with an oil discharge port for connecting an external oil tank, the first overflow valve and the second overflow valve are both provided with a pressure reduction port, and the pressure reduction ports of the first overflow valve and the second overflow valve are communicated with the oil discharge port.
3. The unloader cylinder control valve assembly of claim 2, further comprising a first damper and a second damper, the first damper being mounted between the port a and the second pilot port, the second damper being mounted between the port B and the first pilot port.
4. The unloader cylinder control valve assembly of claim 2, further comprising a third overflow valve, an inlet of the third overflow valve being in communication with the port C, and an outlet of the third overflow valve being in communication with the oil discharge port.
5. The unloader cylinder control valve assembly according to claim 4, wherein an E port for connecting a working cylinder is further provided on the valve block, and the E port communicates with the C port.
6. The unloader cylinder control valve assembly according to claim 4, wherein a first detection port for connecting an external detection device is further provided on the valve block, and the first detection port communicates with the port C.
7. The unloader cylinder control valve assembly of claim 2, further comprising a fourth spill valve, an inlet of the fourth spill valve being in communication with the port D, and an outlet of the fourth spill valve being in communication with the oil discharge port.
8. The unloader cylinder control valve assembly of claim 7, wherein the valve block is further provided with an F port for connecting a working cylinder, the F port being in communication with the D port.
9. The unloader cylinder control valve assembly of claim 7, wherein the valve block is further provided with a second detection port for connecting an external detection device, and the second detection port is communicated with the port D.
10. The unloader cylinder control valve assembly according to any one of claims 1 to 9, wherein the valve block is further provided with a mounting hole for fixing the valve block to an external device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259689.0U CN211901135U (en) | 2020-03-05 | 2020-03-05 | Oil cylinder control valve set of ship unloader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020259689.0U CN211901135U (en) | 2020-03-05 | 2020-03-05 | Oil cylinder control valve set of ship unloader |
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| Publication Number | Publication Date |
|---|---|
| CN211901135U true CN211901135U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020259689.0U Active CN211901135U (en) | 2020-03-05 | 2020-03-05 | Oil cylinder control valve set of ship unloader |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915180A (en) * | 2021-02-02 | 2022-01-11 | 上海圣克赛斯液压股份有限公司 | Plate-mounted zero-leakage three-position four-way electromagnetic reversing valve set |
-
2020
- 2020-03-05 CN CN202020259689.0U patent/CN211901135U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915180A (en) * | 2021-02-02 | 2022-01-11 | 上海圣克赛斯液压股份有限公司 | Plate-mounted zero-leakage three-position four-way electromagnetic reversing valve set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 600, changta Road, Songjiang District, Shanghai, 201617 Patentee after: Shanghai shengkesisi Hydraulic Co.,Ltd. Address before: No. 600, changta Road, Songjiang District, Shanghai, 201617 Patentee before: SHANGHAI SUCCESS HYDRAULICS PRESS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Ship unloader oil cylinder control valve group Effective date of registration: 20230105 Granted publication date: 20201110 Pledgee: Agricultural Bank of China Limited Shanghai Songjiang Sub-branch Pledgor: Shanghai shengkesisi Hydraulic Co.,Ltd. Registration number: Y2023980030417 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |