CN206495678U - A kind of main driving HBW grease injection devices of the shield of improvement - Google Patents
A kind of main driving HBW grease injection devices of the shield of improvement Download PDFInfo
- Publication number
- CN206495678U CN206495678U CN201720155593.8U CN201720155593U CN206495678U CN 206495678 U CN206495678 U CN 206495678U CN 201720155593 U CN201720155593 U CN 201720155593U CN 206495678 U CN206495678 U CN 206495678U
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- Prior art keywords
- grease
- hbw
- pressure
- shield
- greases
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Abstract
The utility model discloses a kind of main driving HBW grease injection devices of shield of improvement, including being uniformly installed on the front of shield shell and main drive housing and multiple support pressure sensors for detecting soil pressure in native storehouse, multiple grease cavity pressure sensors that the HBW greases intracavitary being installed at each grease injection port is used to detect the HBW pressure of grease of HBW grease intracavitary are corresponded to respectively, Pneumatic grease pump for pumping from HBW greases to each grease injection port, it is installed on the exit of Pneumatic grease pump and the electrical ball valve for controlling grease channel break-make in front of Pneumatic grease pump, when controller detects the difference of the soil pressure and the HBW pressure of grease more than or equal to the presetting maximum difference allowed, control electrical ball valve is opened and controls Pneumatic grease pump work pumping HBW greases.The utility model changes the pressure of HBW greases injection according to the pressure in native storehouse, so as to be accurately controlled the injection rate of HBW greases, reduces consumption, the reduction construction cost of HBW greases.
Description
Technical field
The utility model is related to shield machine technical field, more particularly to a kind of main driving HBW greases injection of the shield of improvement
Device.
Background technology
Shield machine is usually used in the driving of subway tunnel, seabed tunnel, vcehicular tunnel etc., is that a kind of automaticity is high, saves
Human-saving, speed of application are fast, cavitation, a weatherproof, when excavating controllable surface subsidence and in underground excavation not
Influence the tunnel construction machinery of traffic above-ground.
The basic functional principle of shield machine be exactly by the shield body of forefront along canal axes when pushing ahead to soil
Excavated, and rotating disk is installed in front of shield body, wear resistant cutters are covered with rotating disk, broken by the rotation and extruding of cutterhead
The broken, soil of chip underground, sandstone and stone etc., the wherein rotation of shield shell are driven by main driving.
At present, during shield machine tunneling construction, the quality of main driveability directly affects shield driving efficiency, main drive
Dynamic damage more can cause shield not tunnel, have serious consequences, and the damage of main driving is generally caused by bad seals, largely
Muddy water entered by the sealing ring of damage inside main driving, so as to directly result in the parts such as large gear ring, little gear, bearing
Abrasion, causes the damage of main driving part.Therefore, main driving sealing system is the key for protecting main driving in tunneling process
Technology, and the sealing system of traditional flow control is the method by substantial amounts of discharge HBW greases, and silt is got lodged in into sealing
Reach the effect for protecting main driving outside.
The sealed structural representation of existing main driving as shown in figure 1, between main driving transcapsidation and shield shell from inside to outside according to
Secondary to install multi-stage sealed, wherein having HBW grease chambers at first of lip-type packing of main driving, HBW greases and dregs are direct
Contact, the uniform multiple grease injection ports of HBW greases chamber（One is only shown in figure）, using the HBW greases constantly extruded by dregs
Gear is outside main driving.To ensure HBW sealing effectiveness, country's injection HBW greases generally use flow control methods, i.e., regardless of knife
Tu Cang pressure is how at disk, and the oil quantity of extrusion is equal, and this method can not accurately be exported according to the actual conditions of geology, because
It is larger that this causes grease to waste.Simultaneously it is incrusted outside HBW grease chambers in the case of, the outlet obstruction of HBW grease chambers, grease without
Method is discharged in time, causes seal pressure excessive, so as to cause grease to flow back, sealing rollover has larger potential safety hazard.
In consideration of it, the present inventor develops a kind of main driving HBW grease injection devices of shield of improvement for this, effective solution
Determine above mentioned problem, thus this case produces.
Utility model content
The main driving HBW grease injection devices of shield for a kind of improvement that the utility model is provided, according to the pressure in native storehouse
To change the pressure of HBW greases injection, so as to be accurately controlled the injection rate of HBW greases, with reduce HBW greases consumption,
Reduce construction cost.
To achieve these goals, the technical solution of the utility model is as follows：
A kind of main driving HBW grease injection devices of the shield of improvement, including
Support pressure sensor, with multiple, is uniformly installed on the front of shield shell and main drive housing, for detecting Tu Cang
Interior soil pressure；
Grease cavity pressure sensor, with multiple, corresponds to the HBW grease chambers being installed at each grease injection port respectively
It is interior, the HBW pressure of grease for detecting HBW grease intracavitary；
Pneumatic grease pump, for pumping HBW greases to each grease injection port；
Electrical ball valve, is installed on the exit of Pneumatic grease pump, for controlling the logical of Pneumatic grease pump front grease channel
It is disconnected；
Controller, respectively with support pressure sensor, grease cavity pressure sensor, electrical ball valve and Pneumatic grease pump signal
Connection, controller is used to control aerodynamic grease pump work according to the soil pressure signal and HBW pressure of grease signal of reception；Controller
When detecting the difference of the soil pressure and the HBW pressure of grease more than or equal to the presetting maximum difference allowed, control electronic
Ball valve is opened and controls Pneumatic grease pump work pumping HBW greases, until the soil pressure and the difference of the HBW pressure of grease are small
Stop when presetting minimal difference equal to permission.
The controller is also connected with the cutterhead water injection system signal of shield machine, and controller detects the HBW greases pressure
When power is more than or equal to presetting mud cake judgment value, the water injection system work of control cutterhead.
Also include alarm, be installed in shield machine driver's cabin, and connected with controller signals, controller detects described
When HBW pressure of grease is more than or equal to presetting mud cake judgment value, alarm equipment alarm is controlled.
The controller and shield machine main drive signal connection, controller detect the HBW pressure of grease be more than etc.
When the pipeline blockage judgment value of setting, control Pneumatic grease pump and electrical ball valve are stopped, while the main driving of control stops
Work.
Also include alarm, be installed in shield machine driver's cabin, and connected with controller signals, controller detects described
When HBW pressure of grease is more than or equal to presetting pipeline blockage judgment value, alarm equipment alarm is controlled.
The presetting maximum difference and presetting minimal difference are respectively the maximum peace of HBW grease intracavitary lip-type packings
Total head and minimum guard value.
After such scheme, the utility model detects the HBW greases of HBW grease intracavitary by grease cavity pressure sensor
Pressure, and all HBW pressure of grease for being detected this by controller are compared with the soil pressure in native storehouse, when soil pressure and
When the difference of HBW pressure of grease is more than the presetting difference allowed, opens electrical ball valve and control Pneumatic grease pump pumping oil
Fat.The effect of wherein electrical ball valve is, when Pneumatic grease pump is not pumped, and electrical ball valve closes to prevent HBW greases from flowing back.
Compared to the control mode of existing constant flow, the amount of the utility model HBW greases pumping can according to support pressure and
HBW grease intracavitary HBW pressure of grease automatically adjusts, so as to be accurately controlled the injection rate of HBW greases, reduces HBW greases
Consumption, reduction construction cost.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment device；
Fig. 2 is the control process figure of the present embodiment device.
Label declaration
Support pressure sensor 1, grease cavity pressure sensor 2, Pneumatic grease pump 3, electrical ball valve 4, controller 5, grease
Inlet 6, HBW greases chamber 7, cutterhead water injection system 8, alarm 9, main driving 10.
Embodiment
In order to which the technical solution of the utility model is explained further, the utility model is entered below by specific embodiment
Row is elaborated.
As shown in figure 1, being that the main driving 10HBW grease injection devices of shield of a kind of improvement that the utility model is disclosed include
Multiple support pressure sensors 1, multiple grease cavity pressure sensors 2, Pneumatic grease pump 3, electrical ball valve 4 and controller 5.
Multiple support pressure sensors 1, are uniformly installed on the front of shield shell and the housing of main driving 10, for detecting in native storehouse
Soil pressure.Multiple grease cavity pressure sensors 2, correspond to be installed in the HBW greases chamber 7 at each grease injection port 6 respectively,
For detecting the HBW pressure of grease in HBW greases chamber 7.Pneumatic grease pump 3 is used to pump HBW oil to each grease injection port 6
Fat, electrical ball valve 4 is then installed on the exit of Pneumatic grease pump 3, for controlling the logical of the front grease channel of Pneumatic grease pump 3
It is disconnected.
Controller 5 then respectively with support pressure sensor 1, grease cavity pressure sensor 2, electrical ball valve 4 and aerodynamic grease
The signal of pump 3 is connected, and controller 5 is used for pneumatic to control according to the above-mentioned soil pressure signal and above-mentioned HBW pressure of grease signal of reception
Grease pump 3 works.Controller 5 detects the soil pressure in native storehouse and presetting maximum of the difference more than permission of HBW pressure of grease
During difference, control electrical ball valve 4 is opened and controls the work pumping HBW greases of Pneumatic grease pump 3, until the soil pressure in above-mentioned native storehouse
Stop when being less than the presetting minimal difference allowed with the difference of above-mentioned HBW pressure of grease.Wherein presetting maximum difference and pre-
Setting minimal difference is respectively the maximum safety value t1 and minimum guard value t2 of lip-type packing in HBW greases chamber 7.
Controller 5 is gone back and the signal of cutterhead water injection system 8 of shield machine is connected, and controller 5 detects above-mentioned HBW pressure of grease
During more than or equal to presetting mud cake judgment value, it is assumed that determined according to geological conditions, mud cake judgment value is 80bar, HBW grease pressures
Power is T, then during T >=80bar, then judges the outer mud lining of HBW greases chamber 7, and control cutterhead water injection system 8 works, and washes away mud
Cake.Alarm 9 signal connection of the controller 5 also and in shield machine driver's cabin, as T >=80bar, also controls alarm 9 to alarm.
Controller 5 is gone back and the signal of main driving 10 of shield machine is connected, and controller 5 detects above-mentioned HBW pressure of grease T and is more than
Equal to setting pipeline blockage judgment value when, such as pipeline blockage judgment value be 120bar, then as T >=120bar, then sentence
Disconnected pipeline blockage can not work, and need to be overhauled, and now the control Pneumatic grease pump 3 of controller 5 and electrical ball valve 4 are stopped,
Control main driving 10 to be stopped simultaneously, and control alarm 9 to alarm.
After controller is compared according to the signal received and with preset value, it is control to control the process that executive component works
The common control process of device processed, controller noted above can be reached directly from the market.
In conjunction with shown in Fig. 2, a kind of above-mentioned control method of the main driving 10HBW grease injection devices of the shield of improvement has
The rate-determining steps of body are：
The control electrical ball valve 4 of S1 controllers 5 is opened, and controls Pneumatic grease pump 3 to work.
S2 starts shield owner driving 10.
S3 detects the HBW pressure of grease T in soil pressure and HBW greases chamber 7 in native storehouse in real time；Wherein mud cake judgment value is T1
=80bar, pipeline blockage judgment value is T2=120bar, and occurrence is determined according to shield itself and geologic parameter；
As T ＜ T1, continue step S4；
As T1≤T ＜ T2, it is judged as the outer mud lining of HBW greases chamber 7, the control cutterhead of controller 5 water injection system 8, which works, rushes
Mud cake is brushed off, and controls alarm 9 to alarm, and continues step S4；
As T2≤T, then judge that pipeline blockage can not work, need to be overhauled, the control electrical ball valve 4 of controller 5 is closed,
Control Pneumatic grease pump 3 and main driving 10 are stopped, and control alarm 9 to alarm.
S4 controllers 5 calculate soil pressure and HBW pressure of grease T pressure differential t；
As t >=presetting maximum difference t1, the control electrical ball valve 4 of controller 5 is opened and controls the work of Pneumatic grease pump 3
Make, and return to step S3；
As t≤presetting minimal difference t2, the control electrical ball valve 4 of controller 5 is closed and controls Pneumatic grease pump 3 to stop
Only work, and return to step S3；
When t is between presetting minimal difference t2 and presetting maximum difference t1, the control electrical ball valve of controller 5
4 and Pneumatic grease pump 3 keep current operating state constant, and return to step S3.
The present embodiment in addition to the injection rate that can be accurately controlled HBW greases, also by first control electrical ball valve 4 open and
Control Pneumatic grease pump 3 works, and is then then turned on main driving 10, prevents soil pressure rise in native storehouse after the main unlatching of driving 10, and makes
HBW greases flow backwards.
Can also detect HBW greases chamber 7 it is outer whether mud lining, and combine cutterhead water injection system 8 to understand mud cake.It can also examine
Whether test tube road blocks（Pipeline blockage is not rinsed including mud cake and caused, and the pipeline that pipeline failure itself is caused is obstructed）,
And shield machine can not be not allow work in the case of normal work in HBW grease injection devices, by whether increasing pipeline
The detection function of blocking, safeguard protection is played a part of to shield machine.
Preferred embodiment of the present utility model is these are only, not to the restriction of protection domain of the present utility model.It is all according to
The equivalent variations that the mentality of designing of this case is done, each fall within the protection domain of this case.
Claims (6)
1. a kind of main driving HBW grease injection devices of the shield of improvement, it is characterised in that：Including
Support pressure sensor, with multiple, is uniformly installed on the front of shield shell and main drive housing, for detecting in native storehouse
Soil pressure；
Grease cavity pressure sensor, with multiple, corresponds to the HBW grease intracavitary being installed at each grease injection port respectively,
HBW pressure of grease for detecting HBW grease intracavitary；
Pneumatic grease pump, for pumping HBW greases to each grease injection port；
Electrical ball valve, is installed on the exit of Pneumatic grease pump, the break-make for controlling grease channel in front of Pneumatic grease pump；
Controller, connects with support pressure sensor, grease cavity pressure sensor, electrical ball valve and Pneumatic grease pump signal respectively
Connect, controller is used to control aerodynamic grease pump work according to the soil pressure signal and HBW pressure of grease signal of reception；Controller is examined
When measuring the difference of the soil pressure and the HBW pressure of grease more than or equal to the presetting maximum difference allowed, electric ball is controlled
Valve is opened and controls Pneumatic grease pump work pumping HBW greases, until the soil pressure and the difference of the HBW pressure of grease are less than
Equal to permission presetting minimal difference when stop.
2. a kind of main driving HBW grease injection devices of the shield of improvement as claimed in claim 1, it is characterised in that：The control
Device processed is also connected with the cutterhead water injection system signal of shield machine, and controller detects the HBW pressure of grease more than or equal to default
During fixed mud cake judgment value, the water injection system work of control cutterhead.
3. a kind of main driving HBW grease injection devices of the shield of improvement as claimed in claim 2, it is characterised in that：Also include
Alarm, is installed in shield machine driver's cabin, and is connected with controller signals, and it is big that controller detects the HBW pressure of grease
When equal to presetting mud cake judgment value, alarm equipment alarm is controlled.
4. a kind of main driving HBW grease injection devices of the shield of improvement as claimed in claim 1, it is characterised in that：The control
The main drive signal connection of device and shield machine processed, controller detects the HBW pressure of grease and blocked up more than or equal to the pipeline of setting
When filling in judgment value, control Pneumatic grease pump and electrical ball valve are stopped, while the main driving of control is stopped.
5. a kind of main driving HBW grease injection devices of the shield of improvement as claimed in claim 4, it is characterised in that：Also include
Alarm, is installed in shield machine driver's cabin, and is connected with controller signals, and it is big that controller detects the HBW pressure of grease
When equal to presetting pipeline blockage judgment value, alarm equipment alarm is controlled.
6. a kind of main driving HBW grease injection devices of the shield of improvement as claimed in claim 1, it is characterised in that：It is described pre-
Setting maximum difference and presetting minimal difference are respectively the maximum safety value and minimum safe of HBW grease intracavitary lip-type packings
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720155593.8U CN206495678U (en) | 2017-02-21 | 2017-02-21 | A kind of main driving HBW grease injection devices of the shield of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720155593.8U CN206495678U (en) | 2017-02-21 | 2017-02-21 | A kind of main driving HBW grease injection devices of the shield of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495678U true CN206495678U (en) | 2017-09-15 |
Family
ID=59805505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720155593.8U Withdrawn - After Issue CN206495678U (en) | 2017-02-21 | 2017-02-21 | A kind of main driving HBW grease injection devices of the shield of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640100A (en) * | 2017-02-21 | 2017-05-10 | 厦门厦工中铁重型机械有限公司 | Improved shield master driving HBW grease injection device and control method thereof |
| CN108361383A (en) * | 2018-03-22 | 2018-08-03 | 辽宁三三工业有限公司 | A kind of novel shield owner driving sealing system |
| CN110656948A (en) * | 2019-10-23 | 2020-01-07 | 中国电建集团铁路建设有限公司 | Shield tunnel soil discharge and gushing prevention device for soil bin and construction method |
-
2017
- 2017-02-21 CN CN201720155593.8U patent/CN206495678U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640100A (en) * | 2017-02-21 | 2017-05-10 | 厦门厦工中铁重型机械有限公司 | Improved shield master driving HBW grease injection device and control method thereof |
| CN108361383A (en) * | 2018-03-22 | 2018-08-03 | 辽宁三三工业有限公司 | A kind of novel shield owner driving sealing system |
| CN108361383B (en) * | 2018-03-22 | 2024-02-02 | 辽宁三三工业有限公司 | Novel shield constructs owner and drives sealing system |
| CN110656948A (en) * | 2019-10-23 | 2020-01-07 | 中国电建集团铁路建设有限公司 | Shield tunnel soil discharge and gushing prevention device for soil bin and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170915 Effective date of abandoning: 20181002 |
|
| AV01 | Patent right actively abandoned |