CN210317968U - Cylinder side valve block of three-section speed door closing - Google Patents
Cylinder side valve block of three-section speed door closing Download PDFInfo
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- CN210317968U CN210317968U CN201921395699.0U CN201921395699U CN210317968U CN 210317968 U CN210317968 U CN 210317968U CN 201921395699 U CN201921395699 U CN 201921395699U CN 210317968 U CN210317968 U CN 210317968U
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- cartridge valve
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- hydraulic cylinder
- oil way
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Abstract
The utility model relates to a cylinder side valve block of a three-section speed door closing, which comprises a hydraulic cylinder; the oil way is used for connecting the rod cavity of the hydraulic cylinder with the rodless cavity of the hydraulic cylinder; the oil way comprises a first oil way, a second oil way and a third oil way which are arranged in parallel; a first cartridge valve is arranged on the first oil way, and the opening and the closing of the first cartridge valve are controlled by first control oil; a second cartridge valve is arranged on the second oil way, and the opening and the closing of the second cartridge valve are controlled by second control oil; a third cartridge valve is arranged on the third oil path, and the opening and the closing of the third cartridge valve are controlled by third control oil; through connecting three oil circuits and the cartridge valves arranged on the corresponding oil circuits, the cartridge valves are controlled to be opened or closed by corresponding control oil, so that the requirement of closing the door at three-stage speed is met.
Description
Technical Field
The utility model relates to a by jar valve block specifically is a by jar valve block of three-section speed door of closing.
Background
The existing tail water quick door hydraulic hoist closes the door in a mode of one speed. Under some working conditions, the hydraulic calculation of the hydraulic turbine unit requires that the tail gate needs to be closed at a sectional speed to achieve the optimal protection effect, and the prior art does not meet the requirements any more. How to realize the closing of the tail water gate at three-section speed becomes a problem which needs to be solved urgently by researchers of the company.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to realize the closing of the tail gate at three-section speed;
in order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model relates to a cylinder side valve block of three-section speed door closing, which comprises a hydraulic cylinder;
the piston rod of the hydraulic cylinder is connected with the gate, and the piston rod moves and drives the gate to move.
The oil way is used for connecting the rod cavity of the hydraulic cylinder and the rodless cavity of the hydraulic cylinder;
the oil circuit comprises a first oil circuit, a second oil circuit and a third oil circuit which are arranged in parallel;
a first cartridge valve is arranged on the first oil way, and the opening and the closing of the first cartridge valve are controlled by first control oil;
a second cartridge valve is arranged on the second oil way, and the opening and the closing of the second cartridge valve are controlled by second control oil;
and a third cartridge valve is arranged on the third oil path, and the opening and the closing of the third cartridge valve are controlled by third control oil.
When the gate needs to be closed, the first oil way, the second oil way and the third oil way are all in an opening state, the flow rate of hydraulic oil flowing into a rodless cavity of the hydraulic cylinder from a rod cavity of the hydraulic cylinder is the fastest, the falling speed of the gate is the fastest at the moment, and the first-stage door closing speed is realized;
when third control oil controls the third cartridge valve to close the third oil way, the flow speed of hydraulic oil flowing into the rodless cavity of the hydraulic cylinder from the rod cavity of the hydraulic cylinder is reduced, the falling speed of the gate is reduced at the moment, and the door closing speed at the second stage is realized;
and at the moment, the second control oil is used for controlling the first cartridge valve to close the second oil way, the flow rate of the hydraulic oil flowing into the rodless cavity of the hydraulic cylinder from the rod cavity of the hydraulic cylinder is slowest, the falling speed of the gate is slowest, and the door closing speed in the third stage is realized until the gate completely falls down.
And a stroke detection device is arranged in the hydraulic cylinder and used for controlling whether the control oil opens or closes the corresponding cartridge valve, and when the piston rod moves to the corresponding stroke position, the stroke detection device is formed for triggering the control oil to work.
The utility model has the advantages that: the utility model discloses a other valve block of jar that three-section speed closed door is through connecting three oil circuits to and set up the cartridge valve at corresponding oil circuit, the cartridge valve is opened or is closed by corresponding control oil control, thereby realizes the requirement of closing the door with three-section speed.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic view of the movement state of the gate of the present invention.
In the figure: 1-third oil path, 2-second oil path, 3-first oil path, 4-third cartridge valve, 5-second cartridge valve and 6-first cartridge valve, wherein the x axis in figure 2 represents the stroke of the hydraulic cylinder, the y axis in figure 2 represents the closing time of the hydraulic cylinder, the pressure of the hydraulic cylinder is lower than the pressure of the hydraulic cylinder, the pressure of the hydraulic cylinder is higher than the pressure of the hydraulic cylinder, and the pressure of the hydraulic cylinder is higher than the pressure of,
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-2, the utility model relates to a cylinder side valve block of three-section speed door closing, which comprises a hydraulic cylinder;
the piston rod of the hydraulic cylinder is connected with the gate, and the piston rod moves and drives the gate to move.
The oil way is used for connecting the rod cavity of the hydraulic cylinder and the rodless cavity of the hydraulic cylinder;
the oil circuit comprises a first oil circuit, a second oil circuit and a third oil circuit which are arranged in parallel;
a first cartridge valve 6 is arranged on the first oil path 3, and the opening and the closing of the first cartridge valve 6 are controlled by first control oil;
a second cartridge valve 5 is arranged on the second oil path 2, and the opening and the closing of the second cartridge valve 5 are controlled by second control oil;
the third oil passage 1 is provided with a third cartridge valve 4, and the opening and closing of the third cartridge valve 4 is controlled by third control oil.
When the gate needs to be closed, the first oil way, the second oil way and the third oil way are all in an opening state, the flow rate of hydraulic oil flowing into a rodless cavity of the hydraulic cylinder from a rod cavity of the hydraulic cylinder is the fastest, the falling speed of the gate is the fastest at the moment, and the first-stage door closing speed is realized;
when third control oil controls the third cartridge valve to close the third oil way, the flow speed of hydraulic oil flowing into the rodless cavity of the hydraulic cylinder from the rod cavity of the hydraulic cylinder is reduced, the falling speed of the gate is reduced at the moment, and the door closing speed at the second stage is realized;
at the moment, the second control oil is used for controlling the first cartridge valve to close the second oil way, the flow rate of the hydraulic oil flowing into the rodless cavity of the hydraulic cylinder from the rod cavity of the hydraulic cylinder is slowest, the falling speed of the gate is slowest, and the door closing speed in the third stage is realized;
as shown in fig. 2, a stroke detection device is arranged in the hydraulic cylinder, and is used for controlling whether the control oil opens or closes the corresponding cartridge valve, and when the piston rod moves to the corresponding stroke position, the stroke detection device is used for triggering the control oil to work; when a stroke detection device is arranged to detect that the gate moves to an inflection point 1 at a first-stage closing speed, the third cartridge valve 4 is closed by third control oil, so that the third oil way 1 is closed; when a stroke detection device is arranged to detect that the gate moves to the inflection point 2 at the second-stage closing speed, the second cartridge valve 5 is closed by second control oil, so that the second oil path 2 is closed.
In addition, the diameter of the third cartridge valve is 80, the diameter of the second cartridge valve is 25, and the diameter of the first cartridge valve is 16, so the diameter of the third cartridge valve is greater than that of the first cartridge valve, and therefore the speed at which the control gate of the third cartridge valve falls is most significant.
The utility model discloses a other valve block of jar that three-section speed closed door is through connecting three oil circuits to and set up the cartridge valve at corresponding oil circuit, the cartridge valve is opened or is closed by corresponding control oil control, thereby realizes the requirement of closing the door with three-section speed.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (1)
1. The cylinder side valve block of the three-section speed door closing is characterized in that: comprises a hydraulic cylinder;
the oil way is used for connecting the rod cavity of the hydraulic cylinder with the rodless cavity of the hydraulic cylinder;
the oil way comprises a first oil way, a second oil way and a third oil way which are arranged in parallel;
a first cartridge valve is arranged on the first oil way, and the opening and the closing of the first cartridge valve are controlled by first control oil;
a second cartridge valve is arranged on the second oil way, and the opening and the closing of the second cartridge valve are controlled by second control oil;
and a third cartridge valve is arranged on the third oil path, and the opening and the closing of the third cartridge valve are controlled by third control oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921395699.0U CN210317968U (en) | 2019-08-26 | 2019-08-26 | Cylinder side valve block of three-section speed door closing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921395699.0U CN210317968U (en) | 2019-08-26 | 2019-08-26 | Cylinder side valve block of three-section speed door closing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210317968U true CN210317968U (en) | 2020-04-14 |
Family
ID=70131544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921395699.0U Active CN210317968U (en) | 2019-08-26 | 2019-08-26 | Cylinder side valve block of three-section speed door closing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210317968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397640A (en) * | 2019-08-26 | 2019-11-01 | 常州液压成套设备厂有限公司 | Three sections of speed close the cylinder side valve block of door |
-
2019
- 2019-08-26 CN CN201921395699.0U patent/CN210317968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397640A (en) * | 2019-08-26 | 2019-11-01 | 常州液压成套设备厂有限公司 | Three sections of speed close the cylinder side valve block of door |
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