CN111425212A - Hob group control hydraulic monitoring system - Google Patents
Hob group control hydraulic monitoring system Download PDFInfo
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- CN111425212A CN111425212A CN202010299250.5A CN202010299250A CN111425212A CN 111425212 A CN111425212 A CN 111425212A CN 202010299250 A CN202010299250 A CN 202010299250A CN 111425212 A CN111425212 A CN 111425212A
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- hob
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- cutter
- pressure
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 59
- 239000003921 oil Substances 0.000 claims abstract description 28
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 230000005641 tunneling Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 20
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/087—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
A hob group control hydraulic monitoring system comprises a hydraulic bus, a hob branch line, a hob assembly, a control bus and a master control system. The hydraulic bus comprises a variable pump and an oil tank which are arranged on a main hydraulic loop of the shield tunneling machine, the variable pump conveys hydraulic oil to a plurality of parallel cutter branch lines through an output main line, a monitoring component capable of monitoring oil temperature and foreign matters is arranged on each cutter branch line, and a flow passage is arranged inside each hob assembly to realize balance of pressure inside the hob.
Description
Technical Field
The invention relates to the technical field of shield tunneling machines and TBMs (tunnel boring machines), in particular to a hobbing cutter hydraulic control system capable of adjusting pressure balance of a bearing inner cavity and monitoring an internal state.
Background
The cutter consumption is one of the main losses in the shield engineering, and the cutter changing cost is huge. The existing shield machine or TBM cutter head hobbing cutter adopts normal pressure sealing, and limestone impurities in a working environment easily enter a cutter sealing environment, so that the internal structure of the hobbing cutter is damaged and loses pressure; in the process of cutting rocks by the hob cutter, complex working conditions easily cause that the cutter bears larger pressure or high temperature, so that internal instability of the cutter is caused and parts are damaged; the state inside the cutter cannot be monitored in real time in the using process. In order to solve the problems, a group control hydraulic system capable of changing the internal pressure according to the stress environment of the cutter is provided, and the internal state of the cutter is monitored in real time through the group control hydraulic system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the hob with the function of adjusting the pressure balance of the inner cavity of the bearing, is provided with a corresponding monitoring system for monitoring the state of the hob, has a simple structure, and prolongs the service life of the hob.
In order to achieve the purpose, the invention adopts the following technical scheme:
the system comprises a hydraulic bus, a cutter branch line, a hob assembly, a control bus and a master control system. The hydraulic bus comprises a variable pump and an oil tank which are arranged on a main hydraulic loop of the shield tunneling machine, the variable pump conveys hydraulic oil to a plurality of parallel cutter branch lines through an output main path, oil return paths of the cutter branch lines are connected with the oil tank through a main oil return path, and the rotating speed of the variable pump is controlled through a main control system.
The device comprises a plurality of cutter branches, a plurality of monitoring components, a three-position four-way electromagnetic directional valve, an electromagnetic one-way throttle valve, an input line, an output line, an electromagnetic pressure control valve and a power supply, wherein the cutter branches are mutually connected in parallel, and each cutter branch is arranged on a cutter head of the shield tunneling machine. Hydraulic oil enters the hob assembly through the input line after passing through the one-way throttle valve through the inlet of the electromagnetic directional valve, then flows out of the hob assembly through the output line, flows out to the outlet of the electromagnetic directional valve through the pressure control valve and the monitoring part in sequence, and enters the main oil return circuit. The control circuit of the electromagnetic directional valve is connected with the master control system through a control bus, and the functions of reversing, cutting off, communicating and the like of the hydraulic circuit of the cutter branch line can be realized according to the requirement. The control ports of the one-way throttle valve and the electromagnetic pressure valve are connected with a master control system through a control bus, the pressure value of pressure liquid entering the hob assembly can be adjusted according to the instruction of the master control system, and the one-way flow and reverse cut-off of the hydraulic circuit are ensured. The monitoring component is arranged on the output line, can monitor the metal debris components in the pressure liquid flowing in the output line and the temperature of the pressure liquid, is connected with the control bus through a signal line, feeds back monitoring data in the cutter branch line to the master control system, and realizes real-time monitoring of the single hob assembly. The other tool branches are connected in the same manner.
The hob assembly comprises a hob ring, an end cover, a pair of tapered roller bearings which are oppositely arranged in the hob holder and the hob holder. The hob is arranged on the tool apron through a middle cutter shaft. The hob assembly includes three parts, namely, a space formed between the left end cover and the left bearing, a space formed between the right end cover and the right bearing, and a space between the two bearings. The three parts of spaces are always required to have certain internal pressure due to the working condition requirement of the hob, and in the prior art, the internal pressure is usually adjusted through a pressure balance structure by applying pressure during cutter assembly and maintaining pressure through a sealing system. This application is connected this space and outside hydraulic system, makes pressure fluid can flow, and then realizes internal pressure's adjustment to through the inside state of this hobbing cutter of pressure fluid monitoring. The invention is provided with a central channel in the axial direction of the cutter shaft, and the left side and the right side of the central channel are respectively communicated with an input circuit and an output circuit through connecting pieces. The device comprises an input runner communicated with the left space, a middle runner communicated with the middle space and an output runner communicated with the right space, wherein all the runners are axially arranged along the cutter shaft, radially extend along the cutter shaft and are communicated with the central channel. The central channel is also provided with two sliding plugs which can move along the channel, the two sliding plugs separate three flow channels and can move mutually according to the pressure in the three flow channels to realize the mutual balance of three space pressures, and a limiting part is arranged at the intersection of each flow channel and the central channel to ensure that the sliding plugs can only move at the middle channel section between the two flow channels so as not to block a flow channel opening. Hydraulic oil enters the input flow channel from the left connecting piece and then passes through the central channel, so that the hydraulic oil enters the middle space through the roller gap of the left bearing after filling the space, and after the space and the middle flow channel are filled, the pressure oil enters the right space through the roller gap of the right bearing, then passes through the output flow channel and the central channel, and then flows out of the connecting piece and enters the output line. The pressure liquid realizes the pressure maintaining of each space through a pressure valve and a throttle valve on the branch line of the cutter. In addition, still be provided with screw end cap and seal assembly on the end cover to realize the sealed to hobbing cutter inner space pressure liquid.
The monitoring component comprises a temperature sensor and a coil which are arranged on an output line, a monitoring control module and a data line. The probe of the temperature sensor enters the pipeline of the circuit, the temperature change of hydraulic oil can be monitored, when abnormal abrasion, breakage and other conditions occur in the hob, the temperature of oil can be abnormally increased, the temperature is sensed by the sensor to be increased, the oil temperature is transmitted to the monitoring control module through a data line and finally transmitted to the master control system through the control bus, the abnormal oil temperature alarm is triggered, the abnormal condition of the hob is warned, and monitoring or tool changing is reminded; the coil can produce the oscillating electric field, contains foreign matter (like metal, plastics piece, grit) etc. in the output line oil pipe, can cause hydraulic oil magnetic conductivity to change the inductance value, monitoring control module is through judging this inductance variation volume, thereby judges the impurity content in the pressure fluid, thereby judges whether great unusual wearing and tearing and fracture take place in the hobbing cutter.
The invention has the beneficial effects that:
1. the method changes the traditional mode of automatically balancing pressure in an inner cavity of a single sealed hob into the mode of connecting an inner cavity of the hob with a hydraulic system of a shield machine, and realizes the adjustment of the internal pressure and the temperature of each hob through the flow of pressure liquid;
2. the pressure loop entering the hob is divided on the cutter head, so that the flow and pressure of the pressure liquid entering each hob cavity can be independently controlled;
3. a proportional throttle valve, a pressure control valve and an electromagnetic directional valve are arranged on a loop flowing into a hob pressure cavity, and the electromagnetic directional valve, the throttle valve and the pressure valve are controlled by a feedback of a piezoelectric element monitoring component on a cutter holder and a shield cutter head control system together;
4. a monitoring component is arranged on a loop flowing out of a hob pressure cavity, the amount of metal debris flowing through the loop is monitored through an electromagnetic coil, and the temperature of hydraulic oil is monitored through a temperature sensor so as to monitor the abrasion and damage conditions of internal parts of the hob.
Drawings
FIG. 1 is a general schematic diagram of a hob group control hydraulic monitoring system of the present invention;
FIG. 2 is a schematic view of the hob assembly of FIG. 1;
fig. 3 is a schematic structural view of the monitoring part.
Detailed Description
The following detailed description of the preferred embodiments will be made with reference to the accompanying drawings. Fig. 1 is a general schematic diagram of the hob group control hydraulic monitoring system according to the present invention. The system comprises a hydraulic bus, a cutter branch line, a hob assembly 1, a control bus 5 and a master control system 4. The hydraulic bus comprises a variable pump 10 and an oil tank 13 which are arranged on a main hydraulic loop of the shield tunneling machine, the variable pump 10 conveys hydraulic oil to a plurality of parallel cutter branch lines through an output main line 11, oil return paths of the cutter branch lines are connected with the oil tank 13 through a main oil return path 12, and the rotating speed of the variable pump is controlled through a main control system.
The device comprises a plurality of cutter branch lines which are mutually connected in parallel, wherein each cutter branch line is arranged on a cutter head of the shield tunneling machine and comprises a three-position four-way electromagnetic directional valve 3, an electromagnetic one-way throttle valve 2, an input line 6, an output line 7, an electromagnetic pressure control valve 8 and a monitoring component 9. Hydraulic oil enters the hob assembly 1 through the input line 6 after passing through the one-way throttle valve 2 through an inlet of the electromagnetic directional valve 3, then flows out of the hob assembly through the output line 7, flows out to an outlet of the electromagnetic directional valve 3 through the pressure control valve 8 and the monitoring part 9 in sequence, and enters a total oil return path. The control circuit of the electromagnetic directional valve 3 is connected with a master control system through a control bus, and the functions of reversing, cutting off, communicating and the like of the hydraulic circuit of the cutter branch line can be realized according to the requirement. The control ports of the one-way throttle valve 2 and the electromagnetic pressure valve 8 are connected with a master control system through a control bus 5, the pressure value of pressure liquid entering the hob assembly can be adjusted according to the instruction of the master control system, and the one-way flow of the hydraulic loop is ensured and the hydraulic loop is stopped reversely. The monitoring component 9 is arranged on the output line 7, and can monitor the metal debris components in the pressure liquid flowing in the output line 7 and the temperature of the pressure liquid, a signal line of the monitoring component 9 is connected with the control bus 5, monitoring data in the cutter branch line is fed back to the master control system 4, and real-time monitoring of the single hob assembly 1 is achieved. The other tool branches are connected in the same manner.
As shown in fig. 2, the hob assembly 1 includes a cutter ring 25, an end cover 23, a pair of tapered roller bearings 26 oppositely disposed in the cutter holder 24, and a cutter holder 27. The hob is arranged on the tool apron through a middle cutter shaft. The hob assembly includes three parts, first the space 18 formed between the left end cap and the left bearing, and the space 22 formed between the right end cap and the right bearing, and the space between the two bearings, inside. The three parts of spaces are always required to have certain internal pressure due to the working condition requirement of the hob, and in the prior art, the internal pressure is usually adjusted through a pressure balance structure by applying pressure during cutter assembly and maintaining pressure through a sealing system. This application is connected this space and outside hydraulic system, makes pressure fluid can flow, and then realizes internal pressure's adjustment to through the inside state of this hobbing cutter of pressure fluid monitoring. The invention is provided with a central channel 14 in the axial direction of the cutter shaft, and the left side and the right side of the central channel 14 are respectively communicated with an input line 6 and an output line 7 through connecting pieces 15. The cutter shaft comprises an input flow channel 16 communicated with a left space 18, a middle flow channel 20 communicated with the middle space, and an output flow channel 21 communicated with a right space 22, wherein the flow channels 17, 20 and 21 are all arranged along the axial direction of the cutter shaft, radially extend along the cutter shaft and are communicated with a central channel 14. The central channel 14 is further provided with two sliding plugs 16 capable of moving along the channel, the two sliding plugs 16 separate three flow channels, and can move mutually according to the pressure in the three flow channels to realize mutual balance of three space pressures, and a limiting part is arranged at the intersection of each flow channel and the central channel 14 to ensure that the sliding plugs can only move in the middle channel section between the two flow channels so as not to block the flow channel opening. After entering from the left-hand connection 15, the hydraulic oil enters the inlet channel 16 via the central channel 14, so that after filling the space 18, the hydraulic oil enters the intermediate space via the roller gaps of the left-hand bearing, after filling the space and the intermediate channel, the hydraulic oil again enters the right-hand space 22 via the roller gaps of the right-hand bearing, then passes through the outlet channel 21 and the central channel 14, and then flows out of the connection into the outlet line 7. The pressure liquid realizes the pressure maintaining of each space through a pressure valve and a throttle valve on the branch line of the cutter. In addition, a screw plug 19 and a sealing assembly are arranged on the end cover 23 to seal the pressure liquid in the inner space of the hob.
As shown in fig. 3, the monitoring unit 9 includes a temperature sensor 28 and a coil 31 provided on the output line 7, a monitoring control module 30, and a data line 29. A probe of the temperature sensor 28 enters the pipeline of the circuit 7, the temperature change of hydraulic oil can be monitored, when abnormal abrasion, breakage and other conditions occur in the hob, the oil temperature is abnormally increased, the temperature is sensed by the sensor 28 and is transmitted to the monitoring control module 30 through a data line, and is finally transmitted to the master control system through the control bus 5, the abnormal oil temperature alarm is triggered, the abnormal condition of the hob is warned, and monitoring or tool changing is reminded; the coil 31 can generate an oscillating electric field, when foreign matters (such as metal, plastic fragments and sand) and the like are contained in an oil pipe of the output line, the magnetic conductivity of hydraulic oil can be changed, so that the inductance value is changed, and the monitoring control module 30 judges the content of impurities in pressure liquid by judging the inductance variable quantity, so that whether larger abnormal abrasion and breakage occur inside the hob is judged.
Through the system, the beneficial effects of the invention are as follows:
1. the method changes the traditional mode of automatically balancing pressure in an inner cavity of a single sealed hob into the mode of connecting an inner cavity of the hob with a hydraulic system of a shield machine, and realizes the adjustment of the internal pressure and the temperature of each hob through the flow of pressure liquid;
2. the pressure loop entering the hob is divided on the cutter head, so that the flow and pressure of the pressure liquid entering each hob cavity can be independently controlled;
3. a proportional throttle valve, a pressure control valve and an electromagnetic directional valve are arranged on a loop flowing into a hob pressure cavity, and the electromagnetic directional valve, the throttle valve and the pressure valve are controlled by a feedback of a piezoelectric element monitoring component on a cutter holder and a shield cutter head control system together;
4. a monitoring component is arranged on a loop flowing out of a hob pressure cavity, the amount of metal debris flowing through the loop is monitored through an electromagnetic coil, and the temperature of hydraulic oil is monitored through a temperature sensor so as to monitor the abrasion and damage conditions of internal parts of the hob.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A hob group control hydraulic monitoring system comprises a hydraulic bus, a hob branch line, a hob assembly, a control bus and a master control system,
the hydraulic bus comprises a variable pump and an oil tank which are arranged on a main hydraulic loop of the shield tunneling machine, the variable pump conveys hydraulic oil to a plurality of parallel cutter branch lines through an output main path, oil return paths of the cutter branch lines are connected with the oil tank through a main oil return path, the rotating speed of the variable pump is controlled through a main control system, and each cutter branch line is provided with a monitoring part capable of monitoring the oil temperature and foreign matters.
2. The hob group control hydraulic monitoring system according to claim 1, wherein: each cutter branch line is arranged on a cutter head of the shield tunneling machine and comprises a three-position four-way electromagnetic directional valve, an electromagnetic one-way throttle valve, an input line, an output line, an electromagnetic pressure control valve and a monitoring component,
hydraulic oil enters the hob assembly through the input line after passing through the one-way throttle valve through the inlet of the electromagnetic directional valve, then flows out of the hob assembly through the output line, flows out to the outlet of the electromagnetic directional valve through the pressure control valve and the monitoring part in sequence, and enters the main oil return circuit.
3. The hob group control hydraulic monitoring system according to claims 1-2, characterized in that: the control circuit of the electromagnetic directional valve is connected with the master control system through a control bus, and the functions of reversing, cutting off, communicating and the like of the hydraulic circuit of the cutter branch line can be realized according to the requirement.
4. The hob group control hydraulic monitoring system according to claims 1 to 3, characterized in that: the control ports of the one-way throttle valve and the electromagnetic pressure valve are connected with a master control system through a control bus, the pressure value of pressure liquid entering the hob assembly can be adjusted according to the instruction of the master control system, and the one-way flow and reverse cut-off of the hydraulic loop are ensured; the monitoring component is arranged on the output line, can monitor the metal debris components in the pressure liquid flowing in the output line and the temperature of the pressure liquid, is connected with the control bus through a signal line, feeds back monitoring data in the cutter branch line to the master control system, and realizes real-time monitoring of the single hob assembly.
5. The hob group control hydraulic monitoring system according to claim 1, wherein: the hob assembly comprises a hob ring, an end cover, a pair of tapered roller bearings which are oppositely arranged in the hob holder and the hob holder; the hob is arranged on the tool apron through a middle cutter shaft; the hob assembly comprises three parts, namely a space formed between a left end cover and a left bearing, a space formed between a right end cover and a right bearing, and a space between the two bearings; a central channel is arranged on the axial direction of the cutter shaft, and the left side and the right side of the central channel are respectively communicated with the input circuit and the output circuit through connecting pieces; the device comprises an input runner communicated with the left space, a middle runner communicated with the middle space and an output runner communicated with the right space, wherein all the runners are axially arranged along the cutter shaft, radially extend along the cutter shaft and are communicated with the central channel.
6. The hob group control hydraulic monitoring system according to claim 5, wherein: the central channel is also provided with two sliding plugs which can move along the channel, the three flow channels are separated by the two sliding plugs and can move mutually according to the pressure in the three flow channels, and the mutual balance of the three space pressures is realized.
7. The hob group control hydraulic monitoring system according to claim 6, wherein: and a limiting part is arranged at the intersection of each flow channel and the central channel so as to ensure that the sliding plug can only move in the middle channel section between the two flow channels and does not block the flow channel opening.
8. The hob group control hydraulic monitoring system according to claim 7, wherein: the pressure liquid realizes the pressure maintaining of each space through a pressure valve and a throttle valve on the cutter branch line, and in addition, a screw plug and a sealing assembly are further arranged on the end cover so as to realize the sealing of the pressure liquid in the inner space of the hob.
9. The hob group control hydraulic monitoring system according to claim 1, wherein: the monitoring component comprises a temperature sensor and a coil which are arranged on an output line, a monitoring control module and a data line,
the temperature sensor probe enters the inside of a line pipeline, can monitor the temperature change of hydraulic oil, is transmitted to the monitoring control module through a data line, and is finally transmitted to the master control system through the control bus to trigger the alarm of abnormal oil temperature.
10. The hob group control hydraulic monitoring system according to claim 9, wherein: the coil can produce the oscillating electric field, when containing the foreign matter in the output line oil pipe, can arouse that hydraulic oil magnetic conductivity changes to change the inductance value, monitoring control module is through judging this inductance variation volume, thereby judges the impurity content in the pressure fluid, thereby judges whether great unusual wearing and tearing and fracture take place in the hobbing cutter inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299250.5A CN111425212B (en) | 2020-04-16 | 2020-04-16 | Hob group control hydraulic monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010299250.5A CN111425212B (en) | 2020-04-16 | 2020-04-16 | Hob group control hydraulic monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111425212A true CN111425212A (en) | 2020-07-17 |
| CN111425212B CN111425212B (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010299250.5A Active CN111425212B (en) | 2020-04-16 | 2020-04-16 | Hob group control hydraulic monitoring system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041889A (en) * | 2001-07-30 | 2003-02-13 | Kawasaki Heavy Ind Ltd | High pressure-resistant roller cutter |
| JP2010116726A (en) * | 2008-11-13 | 2010-05-27 | Ihi Corp | Machine and method for boring deformed cross-section tunnel |
| CN202562452U (en) * | 2012-03-29 | 2012-11-28 | 中建交通建设集团有限公司 | Cutter wearing detection device for tunnel shield construction |
| CN104265821A (en) * | 2014-09-28 | 2015-01-07 | 中冶华天工程技术有限公司 | Damping device for vibration attenuation of upper rollers and lower rollers of rolling mills |
| CN204253690U (en) * | 2014-11-28 | 2015-04-08 | 中铁工程装备集团有限公司 | TBM cutterhead brake hydraulic control system |
| CN205677627U (en) * | 2016-06-12 | 2016-11-09 | 中铁十二局集团有限公司 | A kind of remote controlled shield cutter center flushometer |
| CN207974827U (en) * | 2018-03-19 | 2018-10-16 | 中铁工程装备集团有限公司 | A kind of shield machine cutter hydraulic type wear detector |
| CN110017146A (en) * | 2019-04-03 | 2019-07-16 | 中铁工程装备集团隧道设备制造有限公司 | Outer circulation type is adaptively adjusted structure, cutterhead and hobboing cutter and method is adaptively adjusted |
-
2020
- 2020-04-16 CN CN202010299250.5A patent/CN111425212B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003041889A (en) * | 2001-07-30 | 2003-02-13 | Kawasaki Heavy Ind Ltd | High pressure-resistant roller cutter |
| JP2010116726A (en) * | 2008-11-13 | 2010-05-27 | Ihi Corp | Machine and method for boring deformed cross-section tunnel |
| CN202562452U (en) * | 2012-03-29 | 2012-11-28 | 中建交通建设集团有限公司 | Cutter wearing detection device for tunnel shield construction |
| CN104265821A (en) * | 2014-09-28 | 2015-01-07 | 中冶华天工程技术有限公司 | Damping device for vibration attenuation of upper rollers and lower rollers of rolling mills |
| CN204253690U (en) * | 2014-11-28 | 2015-04-08 | 中铁工程装备集团有限公司 | TBM cutterhead brake hydraulic control system |
| CN205677627U (en) * | 2016-06-12 | 2016-11-09 | 中铁十二局集团有限公司 | A kind of remote controlled shield cutter center flushometer |
| CN207974827U (en) * | 2018-03-19 | 2018-10-16 | 中铁工程装备集团有限公司 | A kind of shield machine cutter hydraulic type wear detector |
| CN110017146A (en) * | 2019-04-03 | 2019-07-16 | 中铁工程装备集团隧道设备制造有限公司 | Outer circulation type is adaptively adjusted structure, cutterhead and hobboing cutter and method is adaptively adjusted |
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| Publication number | Publication date |
|---|---|
| CN111425212B (en) | 2022-08-16 |
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Effective date of registration: 20230112 Address after: 1-101, Building 33, No. 12798, Airport Road, Licheng District, Jinan, Shandong Province, 250000 Patentee after: JINAN CHINA RAILWAY HEAVY INDUSTRY TRACK EQUIPMENT CO.,LTD. Address before: Chenkou Road, Dongchangfu District, Liaocheng City, Shandong Province, 252000 Patentee before: Zhang Zhenzeng |