CN209621869U - A kind of shield automatic adjustment main shaft seals rouge injected system - Google Patents
A kind of shield automatic adjustment main shaft seals rouge injected system Download PDFInfo
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- CN209621869U CN209621869U CN201821900283.5U CN201821900283U CN209621869U CN 209621869 U CN209621869 U CN 209621869U CN 201821900283 U CN201821900283 U CN 201821900283U CN 209621869 U CN209621869 U CN 209621869U
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- rouge
- main shaft
- pressure
- shaft seals
- current divider
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Abstract
A kind of shield automatic adjustment main shaft seals rouge injected system, so that main shaft seals rouge can inject in real time when cutterhead rotates during shield-tunneling construction, and the amount of being actually implanted into is farthest close to design flow.Including the current divider being connect with main shaft seals rouge injection chamber, the setting gear motor actuated by pressure seal rouge corresponding with decanting point in current divider, the arrival end of current divider is connected by pressure seal rouge transfer pipeline with the outlet end that pneumatic greasing pumps, and the arrival end of pneumatic greasing pump is connect with main shaft seals lipid phase.High-pressure gas pipe road sequence solenoid valve, condenser, electric gas pressure reducing valve, oil sprayer and safety check valve, electric gas pressure reducing valve have the bi-directional mini stepper motor for adjusting high-pressure gas pressure.Be arranged on current divider for monitor the gear motor rotation number of teeth close to switch, the movement of bi-directional mini stepper motor is automatically controlled by the unit time actual pulse number arrived close to switch monitors, the air pressure of electric gas pressure reducing valve is adjusted in real time, makes unit time actual pulse number infinite approach or is equal to design umber of pulse.
Description
Technical field
The utility model relates to shield-tunneling construction, in particular to a kind of shield automatic adjustment main shaft seals rouge injection system
System.
Background technique
During shield-tunneling construction, the normal operation of main bearing of shield machine is most important.For the safety for ensuring base bearing, In
Main shaft seals rouge is injected when shield cutter rotates (i.e. base bearing work) in main shaft seals outer chamber, by main shaft seals
It is isolated with dregs in shield soil cabin, prevents dregs and water from entering main shaft seals, and then damage main bearing of shield machine.
It is under working as solenoid valve in an ON state that conventional spindle, which holds stop-leak compound injected system, and the high pressure gas that air compressor machine generates passes through
Solenoid valve, condenser, manual gas pressure reducing valve, oil sprayer and safety check valve enter pneumatic greasing and pump pump head, pneumatic greasing pump
Pump head drives pump rod working in reciprocating mode under body effect of calming the anger, and the lower mouth pumped when pump rod uplink from pneumatic greasing sucks low pressure
Main shaft seals rouge, when pump rod downlink from outlet pumping out pressure seal rouge, (the time of pump rod uplink is extremely short, pump rod downlink one
The secondary time mainly receives body pressure size influence of calming the anger), pressure seal rouge is transported in current divider through shut-off valve, high pressure sealing rouge
8 gear motors rotation in current divider is pushed, while being divided into 8 equal portions stop-leak compounds and being injected separately into main shaft seals rouge injection chamber
Circumference uniform distribution 8 decanting points in (position 1~8).Gear motor rotates a tooth (i.e. main shaft seals rouge injection is primary)
It is primary that pulse is generated close to switch.The greasing speed (i.e. greasing amount) of pneumatic greasing pump and the gas pressure for passing through gas pressure reducer
It is proportional.
Main shaft seals rouge injection control system is conventional, and there are two types of methods: first is that input design one minute in shield machine program
The required minimum pulse number (close to umber of pulse, that is, minimum injection rate of switch) of current divider, when detecting one minute actual pulse number
Cutterhead is automatically stopped when less than design umber of pulse；When the one minute actual pulse number detected is greater than or equal to design umber of pulse
Cutterhead normally rotates.To prevent the frequent stop jumping of cutterhead, do not influence to tunnel, the air pressure for manually adjusting gas pressure reducer need to be greater than reality
Required air pressure, practical main shaft seals rouge injection rate are greater than design flow, lead to the waste of main shaft seals rouge.Second is that shield machine journey
The required minimum pulse number (i.e. minimum injection rate) of one minute current divider of input design in sequence, when detecting one minute actual pulse
Cutterhead is automatically stopped when number is less than design umber of pulse；It is pneumatic when detecting that actual pulse number is equal to design umber of pulse in one minute
Greasing pump is automatically closed, and pneumatic greasing pump is opened again after last time injection length and one minute total pneumatic greasing pump shut-in time
It opens, circulation injection main shaft seals rouge.Such method main shaft seals rouge when cutterhead rotates is not real-time injection (discontinuity note
Enter), it is unfavorable for the protection of base bearing.
Shield is that main shaft seals rouge injects in real time when cutterhead rotates with main shaft seals rouge injected system best practice
And the amount of being actually implanted into infinite approach design flow, i.e. effective protection base bearing control the injection rate of main shaft seals rouge again.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of automatic adjustment main shaft seals rouge injections of shield
System, so that main shaft seals rouge can inject in real time when cutterhead rotates during shield-tunneling construction, and the amount of being actually implanted into is utmostly
Ground is close to design flow.
It is as follows that the utility model solves technical solution used by the technical problem:
A kind of shield of the utility model automatic adjustment main shaft seals rouge injected system, including with main shaft seals rouge
The current divider of chamber connection is injected, the setting gear motor actuated by pressure seal rouge corresponding with decanting point in current divider, point
The arrival end of stream device is connected by pressure seal rouge transfer pipeline with the outlet end that pneumatic greasing pumps, the entrance of pneumatic greasing pump
End is connect with main shaft seals lipid phase, it is characterized in that: the high-pressure gas pipeline of setting and pneumatic greasing pump connection, the high pressure gas
Sequence solenoid valve, condenser, electric gas pressure reducing valve, oil sprayer and safety check valve, electric gas pressure reducing valve have on pipeline
Adjust the bi-directional mini stepper motor of high-pressure gas pressure；It is arranged on the current divider for monitoring the gear motor rotation number of teeth
Close to switch, the movement of bi-directional mini stepper motor is automatically controlled by the unit time actual pulse number arrived close to switch monitors,
The air pressure of electric gas pressure reducing valve is constantly adjusted, unit time actual pulse number infinite approach is made or is equal to design umber of pulse.
The utility model has the beneficial effects that automatically adjusting the air pressure of electric gas pressure reducing valve by control system, pneumatically
Greasing pump injection main shaft seals rouge can constantly inject when cutterhead rotates and close to design injection rate, both ensure base bearing
Safety again reduce costs.
Detailed description of the invention
This specification includes following two width attached drawing:
Fig. 1 is main shaft seals rouge injection phase schematic diagram；
Fig. 2 is a kind of schematic diagram of shield automatic adjustment main shaft seals rouge injected system of the utility model；
Component, position and corresponding label be shown in figure: main shaft seals rouge inject chamber 1, base bearing external seal 2, with
The fixed component 3 of cutterhead and shield body fixation member 4, solenoid valve 5, condenser 6, electric gas pressure reducing valve 7, bi-directional mini stepping
Motor 8, oil sprayer 9, low pressure seal rouge entrance 10, pneumatic greasing pump seal disk 11, stop-leak compound working chamber 12, pressure seal rouge
Outlet 13, pump rod 14, safety check valve 15, pneumatic greasing pump 16, pneumatic greasing pump pump head 17, shut-off valve 18, auxiliary device
19, current divider 20, close switch 21.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Referring to Figures 1 and 2, a kind of shield of the utility model automatic adjustment main shaft seals rouge injected system, including with
Main shaft seals rouge injects the current divider 20 that chamber 1 connects, and setting is corresponding with decanting point by pressure seal rouge in current divider 20
The gear motor actuated.Gear motor one tooth of every rotation injects once sealing rouge into main shaft seals rouge injection chamber 1.
The arrival end of current divider 20 is connected by pressure seal rouge transfer pipeline with the pressure seal rouge outlet 13 of pneumatic greasing pump 16,
The low pressure seal rouge entrance 10 of pneumatic greasing pump 16 is connect with main shaft seals lipid phase.When solenoid valve 5 in an ON state when,
High pressure gas enters in 17 rodless cavity of pump head of pneumatic greasing pump 16, active force of the high pressure gas to rodless cavity piston in pump head 17
Greater than the rod chamber inner spring in pump head 17 to the active force of piston, 14 downlink of piston driving pump rod in pump head 17, stop-leak compound
Low pressure seal rouge in working chamber 12 is collapsed into pressure seal rouge and 13 is pumped out by the outlet of pressure seal rouge, when pump head downlink extremely
In limited time, high pressure gas is automatically drained out in pump head rodless cavity, and pump head rod chamber inner spring promotes pump rod 14 fast the active force of piston
Fast uplink is sealed since auxiliary device 19 promotes stop-leak compound to be entered by low pressure seal rouge entrance 10 pushing of pneumatic greasing pump 16
Rouge working chamber 12, when pump head goes upward to the limit, high pressure gas is again introduced into 17 working chamber of pump head, pump rod downlink.Pneumatic injection
16 such cycle operation always of rouge pump.Auxiliary device 19 may be implemented the replacement of main shaft seals rouge bucket, and by pneumatic greasing
Pump 16 is fixed on above main shaft seals rouge, will be in low pressure seal rouge entrance 10 and bucket by pneumatic greasing pump seal disk 11
Stop-leak compound connection.In pneumatic greasing 16 work of pump, auxiliary device 19 promotes to be pressed under air driven pump seal disc 13 with certain pressure close
It seals on rouge.Shut-off valve 18 is set on pressure seal rouge transfer pipeline.
Referring to Fig. 2, the high-pressure gas pipeline connecting with pneumatic greasing pump 16 is set, high-pressure gas pipe road sequence is arranged
Solenoid valve 5, condenser 6, electric gas pressure reducing valve 7, oil sprayer 9 and safety check valve 15.Electric gas pressure reducing valve 7, which has, to be adjusted
The bi-directional mini stepper motor 8 of high-pressure gas pressure.It is arranged on the current divider 20 for monitoring the gear motor rotation number of teeth
Close to switch 21, bi-directional mini stepper motor 8 is automatically controlled by the unit time actual pulse number monitored close to switch 21
Movement adjusts 7 air pressure of electric gas pressure reducing valve in real time, makes unit time actual pulse number infinite approach or is equal to design pulse
Number is actually implanted into stop-leak compound amount infinite approach or is equal to design flow.
Referring to Fig. 2, when solenoid valve 5 in an ON state, the high pressure gas that air compressor machine generates is through solenoid valve 5, condenser 6, electricity
Dynamic gas pressure reducer 7, oil sprayer 9 and safety check valve 15 enter in pneumatic greasing pump 17 rodless cavity of pump head.Pneumatic greasing pump 16
It works under high pressure gas effect, sucks low pressure seal rouge from lower mouth, pump out pressure seal rouge from outlet, pressure seal rouge is through cutting
Only valve 18 is transported in current divider 20, and pressure seal rouge pushes 8 gear motors rotation in current divider 20, while being divided into 8 etc.
Part pressure seal rouge is injected separately into 8 decanting points of the circumference uniform distribution of main shaft seals rouge injection chamber 1.
Automatic adjustment main shaft seals rouge programming is as follows: when cutterhead starts rotation, solenoid valve 5 is connected and is located always
In on-state, electric gas pressure reducing valve 7 is in state (practical main shaft seals rouge when the injection of last time main shaft seals rouge stops
The close design injection rate state of injection rate), start to detect the umber of pulse close to 21 unit time of switch (assuming that designing arteries and veins per minute
Rushing number is 12 times, and can detecte in 5 seconds unit time to be 1 time).If unit time umber of pulse is greater than design flow, electronic
Bi-directional mini stepper motor 8 on gas pressure reducer 7 is positive that electric step is further (pressure reducing valve rotates in the forward direction 90 degree), will export gas
The low 0.1bar of pressure drop, air driven pump pumping main shaft seals rouge pressure reduction 6.5bar (it is electronic to set this system electric gas pressure reducing valve
The air pressure change 0.4bar that turns around is revolved, air driven pump atmospheric pressure value is 1:65 with stop-leak compound pressure value ratio is pumped out), rate of pumping becomes
Slowly；If unit time umber of pulse is less than design flow, the bi-directional mini stepper motor 8 on electric gas pressure reducing valve 7 is electricly reversed
Step further (pressure reducing valve reversely rotates 90 degree), by output pressure improves 0.1bar, and air driven pump pumps main shaft seals rouge pressure
6.5bar is improved, rate of pumping becomes faster；If next unit time actual pulse number is not inconsistent with design flow, bi-directional mini stepping electricity
Machine 8 continues to adjust pneumatic greasing pump rate of pumping, adjusts electric gas decompression in real time according to the unit time umber of pulse detected
The output pressure of valve 7 finally achievees the effect that unit time umber of pulse is consistent with design flow in real time.
The automatic adjustment main shaft seals rouge injected system detection unit time is shorter and unit time number of pulses is bigger, from
Dynamic degree of regulation is more quasi-, and the amount of being actually implanted into is closer to design injection rate.The greasing amount according to needed for main shaft seals, pneumatic greasing
The actual conditions such as pump capacity, the construction of electric gas pressure reducing valve 7, it is appropriate to carry out to the step angle of bi-directional mini stepper motor 8
Adjustment, to achieve the effect that accurately to adjust practical greasing amount.
The above is a kind of shield automatic adjustment main shaft seals rouge injection system of the utility model that explains through diagrams
The some principles and function of system are not intended to shown in being confined to the utility model and described specific structure and the scope of application
It is interior, therefore all corresponding modifications that may be utilized and equivalent, especially pneumatic greasing, which pumps, configures electricity in injected system
Dynamic gas pressure reducer simultaneously automatically adjusts gas pressure reducer pressure control by the feedback bi-directional mini stepper motor for the amount of being actually implanted into
System belongs to the applied the scope of the patents of the utility model.
Claims (2)
1. a kind of shield automatic adjustment main shaft seals rouge injected system, including connect with main shaft seals rouge injection chamber (1)
Current divider (20), the setting gear motor actuated by pressure seal rouge corresponding with decanting point in current divider (20), shunting
The arrival end of device (20) is connected by the pressure seal rouge outlet (13) that pressure seal rouge transfer pipeline pumps (16) with pneumatic greasing
It connects, the low pressure seal rouge entrance (10) of pneumatic greasing pump (16) connect with main shaft seals lipid phase, it is characterized in that: setting and pneumatically
Greasing pumps the high-pressure gas pipeline of (16) connection, high-pressure gas pipe road sequence setting solenoid valve (5), condenser (6), electronic
Gas pressure reducer (7), oil sprayer (9) and safety check valve (15), electric gas pressure reducing valve (7), which has, adjusts high-pressure gas pressure
Bi-directional mini stepper motor (8)；Be arranged on the current divider (20) for monitor the gear motor rotation number of teeth close to switch
(21), bi-directional mini stepper motor (8) are automatically controlled by the unit time actual pulse number monitored close to switch (21) to move
Make, adjust electric gas pressure reducing valve (7) air pressure in real time, make unit time actual pulse number infinite approach or is equal to design pulse
Number.
2. a kind of shield automatic adjustment main shaft seals rouge injected system as described in claim 1, it is characterized in that: the pressure
Shut-off valve (18) are set on power stop-leak compound transfer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900283.5U CN209621869U (en) | 2018-11-18 | 2018-11-18 | A kind of shield automatic adjustment main shaft seals rouge injected system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900283.5U CN209621869U (en) | 2018-11-18 | 2018-11-18 | A kind of shield automatic adjustment main shaft seals rouge injected system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209621869U true CN209621869U (en) | 2019-11-12 |
Family
ID=68443998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821900283.5U Active CN209621869U (en) | 2018-11-18 | 2018-11-18 | A kind of shield automatic adjustment main shaft seals rouge injected system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209621869U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854625A (en) * | 2018-11-18 | 2019-06-07 | 中国电建集团铁路建设有限公司 | A kind of shield automatic adjustment main shaft seals rouge injected system |
| CN114755445A (en) * | 2022-04-06 | 2022-07-15 | 中交天和机械设备制造有限公司 | Integrated monitoring system and method for rotation state of shield tunneling machine cutter |
-
2018
- 2018-11-18 CN CN201821900283.5U patent/CN209621869U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854625A (en) * | 2018-11-18 | 2019-06-07 | 中国电建集团铁路建设有限公司 | A kind of shield automatic adjustment main shaft seals rouge injected system |
| CN114755445A (en) * | 2022-04-06 | 2022-07-15 | 中交天和机械设备制造有限公司 | Integrated monitoring system and method for rotation state of shield tunneling machine cutter |
| CN114755445B (en) * | 2022-04-06 | 2024-05-28 | 中交天和机械设备制造有限公司 | Integrated monitoring system and method for rotation state of shield tunneling machine cutterhead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100160 701, 7th floor, building 3, yard 10, Automobile Museum East Road, Fengtai District, Beijing Patentee after: China Power Construction Railway Construction Investment Group Co.,Ltd. Patentee after: XIHUA University Patentee after: POWERCHINA CHENGDU CONSTRUCTION INVESTMENT Co.,Ltd. Address before: 100044 1001, 10th floor, building 2, yard 22, Chegongzhuang West Road, Haidian District, Beijing Patentee before: POWERCHINA RAILWAY CONSTRUCTION Co.,Ltd. Patentee before: XIHUA University Patentee before: POWERCHINA CHENGDU CONSTRUCTION INVESTMENT Co.,Ltd. |
|
| CP03 | Change of name, title or address |