CN211174114U - Shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted - Google Patents
Shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted Download PDFInfo
- Publication number
- CN211174114U CN211174114U CN201921489702.5U CN201921489702U CN211174114U CN 211174114 U CN211174114 U CN 211174114U CN 201921489702 U CN201921489702 U CN 201921489702U CN 211174114 U CN211174114 U CN 211174114U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- hydraulic
- sealing cavity
- pressure sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a shield constructs owner and drives sealing system based on soil pressure follow-up is adjusted, including hydraulic tank, hydraulic tank's oil-out and hydraulic pump oil suction opening are connected, the oil-out of hydraulic pump and the first interface connection of flow valve, the second interface and the hydraulic tank of flow valve are connected, the third interface and the oil inlet of ration distributor of flow valve are connected, the oil-out of ration distributor is connected with the oil inlet of three sealed chamber respectively, three pressure sensor is installed respectively to three sealed chamber, it is first, the first interface of proportional valve is connected to the oil-out in the sealed chamber of second, the proportional valve is connected with the controller electricity. The utility model discloses can adjust hydraulic pressure balance pressure and change along with the soil pressure change, can prevent effectively that the soil sand from getting into the main drive through the main drive is sealed to main drive's reliability and life-span have been improved greatly.
Description
Technical Field
The utility model relates to a shield constructs the machine field, especially relates to a shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted.
Background
The shield machine main drive sealing system can be divided into two types according to the difference of used sealing and lubricating media: one is a main driving sealing system using lubricating grease as a sealing lubricating medium; one is a main drive sealing system using hydraulic oil as a sealing lubricating medium. The main driving sealing system using hydraulic oil as a sealing lubricating medium mainly adopts a stepped multi-stage pressure regulating mode to balance the soil bin pressure outside the main driving sealing, and the stepped multi-stage pressure regulating control mode has low control precision and slow response speed and cannot effectively deal with the situation that the soil bin pressure is complex and variable.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model provides a shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted mainly solves the problem of background art.
The utility model provides a shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted, including hydraulic tank, hydraulic tank's oil-out is connected with the hydraulic pump oil suction opening, the oil-out of hydraulic pump is connected with the first interface of flow valve, the second interface of flow valve with hydraulic tank is connected, the third interface of flow valve is connected with the oil inlet of ration distributor, the oil-out of ration distributor is connected with the oil inlet of first seal chamber, second seal chamber, third seal chamber respectively, first pressure sensor is installed to first seal chamber, the second pressure sensor is installed to the second seal chamber, third pressure sensor is installed to the third seal chamber, the oil-out of first seal chamber and the oil-out of second seal chamber connect the first interface of proportional valve, the second interface of proportional valve with hydraulic tank is connected, the proportional valve is electrically connected with the controller, the controller is electrically connected with the first pressure sensor, the second pressure sensor and the third pressure sensor, the controller is further connected with a soil pressure sensor, and the soil pressure sensor is installed at the position of a main driving sealing system in direct contact with a soil bin.
The further improvement lies in that: an oil absorption filter is arranged on a pipeline between the hydraulic oil tank and the hydraulic pump and used for filtering impurities in hydraulic oil and improving the cleanliness of the hydraulic oil.
The further improvement lies in that: the oil inlet of the overflow valve is connected with the oil outlet of the hydraulic pump, and the oil outlet of the overflow valve is connected with the hydraulic oil tank and used for adjusting the maximum output pressure of the shield machine main drive sealing system.
The further improvement lies in that: the hydraulic oil tank is characterized by further comprising a first one-way valve, an oil inlet of the first one-way valve is connected with the first sealing cavity and the second sealing cavity respectively, an oil outlet of the first one-way valve is connected with the hydraulic oil tank, and the first one-way valve serves as a pressure safety valve of the first sealing cavity and the second sealing cavity.
The further improvement lies in that: the hydraulic oil tank is characterized by further comprising an electromagnetic valve, an oil inlet of the electromagnetic valve is connected with the first sealing cavity and the second sealing cavity respectively, and an oil outlet of the electromagnetic valve is connected with the hydraulic oil tank to serve as a pressure loading valve of the first sealing cavity and the second sealing cavity.
The further improvement lies in that: the hydraulic oil tank is characterized by further comprising a second one-way valve, an oil inlet of the second one-way valve is connected with the third sealing cavity, an oil outlet of the second one-way valve is connected with the hydraulic oil tank, and the second one-way valve serves as a pressure safety valve of the third sealing cavity.
the further improvement is that the controller is a single chip microcomputer or a PAL controller.
Compared with the prior art, the beneficial effects of the utility model are that:
1. The sealing cavity is provided with a single one-way valve for connection, so that the safety in regulating the hydraulic pressure is improved;
2. The controller is utilized to control the displacement of the valve core of the proportional valve, and then the hydraulic balance pressure is adjusted along with the change of the soil bin pressure, so that the controller and the soil bin pressure keep a fixed small pressure difference value, the response speed is high, the control precision is high, and the complex and variable conditions of the soil bin pressure can be effectively responded.
Drawings
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Fig. 1 is a schematic structural view of the main driving sealing system of the present invention;
FIG. 2 is a hydraulic schematic diagram of the main drive seal system of the present invention;
FIG. 3 is a control logic diagram of the main drive seal system of the present invention;
Wherein: 1-oil absorption filter, 2-hydraulic pump, 3-overflow valve, 4-flow valve, 5-quantitative distributor, 51-first seal cavity, 52-second seal cavity, 53-third seal cavity, 61-first pressure sensor, 62-second pressure sensor, 63-third pressure sensor, 7-proportional valve, 8-first check valve, 9-electromagnetic valve, 10-second check valve and 11-soil pressure sensor.
Detailed Description
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art. The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Referring to fig. 2, a shield tunneling machine main drive sealing system based on soil pressure follow-up adjustment comprises a hydraulic oil tank, an oil outlet of the hydraulic oil tank is connected with an oil inlet of a hydraulic pump 2, the hydraulic oil tank is used for storing and cooling hydraulic oil of the sealing system, the hydraulic pump 2 serves as a power source of the main drive sealing system, an oil outlet of the hydraulic pump 2 is connected with a first interface of a flow valve 4, a second interface of the flow valve 4 is connected with the hydraulic oil tank, a third interface of the flow valve 4 is connected with an oil inlet of a quantitative distributor 5, an oil outlet of the quantitative distributor 5 is respectively connected with oil inlets of a first sealing cavity 51, a second sealing cavity 52 and a third sealing cavity 53, the first sealing cavity 51 is provided with a first pressure sensor 61, the second sealing cavity 52 is provided with a second pressure sensor 62, and the third sealing cavity 53 is provided with a third pressure sensor 63, the flow valve 4 can adjust the flow of hydraulic oil in the three sealed chambers, and then the quantitative distributor 5 quantitatively distributes the flow entering the three sealed chambers, while the three pressure sensors can feed back the pressure of the three sealed chambers to the controller in real time, the oil outlet of the first sealed chamber 51 and the oil outlet of the second sealed chamber 52 are connected with the first interface of the proportional valve 7, the second interface of the proportional valve 7 is connected with the hydraulic oil tank, referring to fig. 3, the proportional valve 7 is electrically connected with the controller, the controller is electrically connected with the first pressure sensor 61, the second pressure sensor 62 and the third pressure sensor 63, the controller is further connected with the soil pressure sensor 11, referring to fig. 1, the soil pressure sensor 11 is installed at the position where the main driving sealing system is directly contacted with the soil bin.
During specific work, set for one on the controller and set for the difference earlier, then the soil storehouse pressure data information that the soil pressure sensor 11 that is located the main drive sealing system will detect arrives the utility model discloses a controller installs in first seal chamber 51, second seal chamber 52, the first pressure sensor 61 of third seal chamber 53, second pressure sensor 62, third pressure sensor 63 also uploads the main drive sealing system hydraulic pressure data information that detects to the controller, and the controller compares two kinds of data, adjusts proportional valve 7 and then adjusts the hydraulic pressure of main drive sealing system according to the skew condition of comparative difference and settlement difference, makes the difference of soil storehouse pressure and main drive sealing system hydraulic pressure and sets for the difference trend unanimously.
Specifically, when the difference between the pressure of the soil bin and the hydraulic pressure of the main drive sealing system is too large, the hydraulic pump 2 is started, the electromagnet DT1 is powered, the proportional valve 7 is powered, hydraulic oil enters an oil path from the hydraulic oil tank through an oil suction port of the hydraulic pump 2, then enters from a first port of the flow valve 4, flows out from a third port of the flow valve 4, enters into the quantitative distributor 5, and enters into the first sealing cavity 51, the second sealing cavity 52 and the third sealing cavity 53 respectively, the proportional valve 7 adjusts the hydraulic pressure of each sealing cavity, the hydraulic oil in the third sealing cavity 53 enters into the first sealing cavity 51 and the second sealing cavity 52 through the main drive seal, and the hydraulic oil in the first sealing cavity 51 and the second sealing cavity 52 flows back to the hydraulic oil tank through the proportional valve 7, so that the difference between the pressure of the soil bin and the hydraulic pressure of the main drive sealing system tends to be consistent with a set difference.
As a preferred embodiment of the utility model, hydraulic tank with install oil absorption filter 1 on the pipeline between the hydraulic pump 2 for filter the impurity in the hydraulic oil, improve the cleanliness of hydraulic oil.
As a preferred embodiment of the utility model, still include overflow valve 3, overflow valve 3's oil inlet with hydraulic pump 2's oil-out is connected, overflow valve 3's oil-out with hydraulic tank connects, and overflow valve 3 chooses for use and can set up the maximum output pressure of main drive sealing system.
As a preferred embodiment of the utility model, still include first check valve 8, the oil inlet of first check valve 8 respectively with first seal chamber 51 the second seal chamber 52 is connected, the oil-out of first check valve 8 with hydraulic tank connects.
As a preferred embodiment of the utility model, still include solenoid valve 9, solenoid valve 9's oil inlet respectively with first seal chamber 51 the second seal chamber 52 is connected, solenoid valve 9's oil-out with hydraulic tank connects, solenoid valve 9 can assist proportional valve 7 to adjust the hydraulic pressure of main drive sealing system as the pressure loading valve of first seal chamber 51 and second seal chamber 52.
As a preferred embodiment of the utility model, still include second check valve 10, the oil inlet of second check valve 10 with third seal chamber 53 is connected, the oil-out of second check valve 10 with hydraulic tank connects.
as a preferred embodiment of the present invention, the controller is a single chip microcomputer or a P L C controller.
In the drawings, the positional relationship is described for illustrative purposes only and is not to be construed as limiting the present patent; it is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The shield machine main drive sealing system based on soil pressure follow-up adjustment comprises a hydraulic oil tank and is characterized in that an oil outlet of the hydraulic oil tank is connected with an oil suction port of a hydraulic pump (2), an oil outlet of the hydraulic pump (2) is connected with a first interface of a flow valve (4), a second interface of the flow valve (4) is connected with the hydraulic oil tank, a third interface of the flow valve (4) is connected with an oil inlet of a quantitative distributor (5), an oil outlet of the quantitative distributor (5) is respectively connected with oil inlets of a first sealing cavity (51), a second sealing cavity (52) and a third sealing cavity (53), a first pressure sensor (61) is installed in the first sealing cavity (51), a second pressure sensor (62) is installed in the second sealing cavity (52), and a third pressure sensor (63) is installed in the third sealing cavity (53), the oil outlet of the first sealing cavity (51) and the oil outlet of the second sealing cavity (52) are connected with a first interface of a proportional valve (7), a second interface of the proportional valve (7) is connected with the hydraulic oil tank, the proportional valve (7) is electrically connected with a controller, the controller is electrically connected with a first pressure sensor (61), a second pressure sensor (62) and a third pressure sensor (63), the controller is further connected with a soil pressure sensor (11), and the soil pressure sensor (11) is installed at the position where a main driving sealing system is in direct contact with a soil bin.
2. The earth pressure follow-up regulation-based shield machine main drive sealing system according to claim 1, characterized in that an oil suction filter (1) is installed on a pipeline between the hydraulic oil tank and the hydraulic pump (2).
3. The earth pressure follow-up regulation-based shield machine main driving sealing system according to claim 1, characterized by further comprising an overflow valve (3), wherein an oil inlet of the overflow valve (3) is connected with an oil outlet of the hydraulic pump (2), and an oil outlet of the overflow valve (3) is connected with the hydraulic oil tank.
4. The earth pressure follow-up adjustment-based shield machine main driving sealing system according to claim 1, characterized by further comprising a first one-way valve (8), wherein an oil inlet of the first one-way valve (8) is connected with the first sealing cavity (51) and the second sealing cavity (52), respectively, and an oil outlet of the first one-way valve (8) is connected with the hydraulic oil tank.
5. The earth pressure follow-up adjustment-based shield machine main driving sealing system according to claim 1, characterized by further comprising an electromagnetic valve (9), wherein an oil inlet of the electromagnetic valve (9) is connected with the first sealing cavity (51) and the second sealing cavity (52), respectively, and an oil outlet of the electromagnetic valve (9) is connected with the hydraulic oil tank.
6. The earth pressure follow-up adjustment-based shield machine main driving sealing system according to claim 1, characterized by further comprising a second one-way valve (10), wherein an oil inlet of the second one-way valve (10) is connected with the third sealing cavity (53), and an oil outlet of the second one-way valve (10) is connected with the hydraulic oil tank.
7. the earth pressure follow-up adjustment-based shield tunneling machine main drive sealing system according to claim 1, wherein the controller is a single chip microcomputer or a PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921489702.5U CN211174114U (en) | 2019-09-06 | 2019-09-06 | Shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921489702.5U CN211174114U (en) | 2019-09-06 | 2019-09-06 | Shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174114U true CN211174114U (en) | 2020-08-04 |
Family
ID=71805257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921489702.5U Active CN211174114U (en) | 2019-09-06 | 2019-09-06 | Shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174114U (en) |
-
2019
- 2019-09-06 CN CN201921489702.5U patent/CN211174114U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106167233B (en) | A kind of auto-tensioning and freely put rope winch hydraulic control system | |
| CN205370659U (en) | Hydraulic pressure governing system that steam turbine was used | |
| CN107810337A (en) | For performing the hydraulic unit driver of linear motion | |
| CN105351266B (en) | A kind of high-performance mining elevator hydraulic control system | |
| CN105351278A (en) | Novel compound electro-hydraulic servo control system | |
| CN203272291U (en) | Workpiece feeding rapid unloading loop | |
| CN211174114U (en) | Shield constructs owner and drives sealing system based on earth pressure follow-up is adjusted | |
| CN105387032B (en) | A kind of liquid energy feedback energy-saving device for load-sensitive ratio control system | |
| CN107524642A (en) | A kind of force control hydraulic pressure energy saving of system method and its energy saver | |
| CN106837905A (en) | A kind of synchronous eight cylinder hydraulic systems of shearing type lifting machine platform | |
| CN105179350B (en) | Valve block assembly of three-way type lifting hydraulic system for dump truck | |
| CN106351887A (en) | Hydraulic driving device | |
| CN217107698U (en) | Integrated valve of hydraulic power braking liquid-filled fan driving system | |
| CN108533556A (en) | A kind of repairing switching valve and control system for enclosed and open system switching | |
| CN113757197B (en) | Constant pressure control method of pump station | |
| CN215293098U (en) | Hydraulic system oil circuit cooling structure | |
| CN214329057U (en) | Return oil temperature control system and excavator | |
| CN210087706U (en) | Hydraulic control device of hydraulic clutch of scraper conveyor | |
| CN108386531A (en) | A kind of gear oil circulating system and its control method | |
| CN209176568U (en) | Wide dumper hydraulic lifting system | |
| CN215861042U (en) | Unload grain section of thick bamboo lift hydraulic control system and harvester | |
| CN216618057U (en) | CNC drive control system driven by bidirectional pump | |
| CN106640800B (en) | A kind of hydraulic system applied in automatic hydraulic blanking iron cutting machine | |
| CN104401849B (en) | Hydraulic elevator system that is super-silent and that operate steadily | |
| CN104990260B (en) | The water inlet system of air-source water heater and there is its air-source water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |