CN207715153U - A kind of shield machine and its tool wear monitoring and autocompensation installation - Google Patents
A kind of shield machine and its tool wear monitoring and autocompensation installation Download PDFInfo
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- CN207715153U CN207715153U CN201721602706.0U CN201721602706U CN207715153U CN 207715153 U CN207715153 U CN 207715153U CN 201721602706 U CN201721602706 U CN 201721602706U CN 207715153 U CN207715153 U CN 207715153U
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- tool
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- mounting base
- cutter
- matrix
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Abstract
The utility model is related to a kind of shield machine and its tool wear monitorings and autocompensation installation,Tool wear monitoring and autocompensation installation include the cutter for connecting mounting base for the cutterhead with shield machine and being installed in mounting base,Cutter includes the cutter cutlery for sliding the tool matrix of mobile cooperation with mounting base and being set on tool matrix,Cutter cutlery protrudes from tool matrix,Detection device is provided on tool matrix,The tool wear monitoring and autocompensation installation further include the controller being connect with detection device signal,Mounting base is internally provided with for driving tool matrix along the driving mechanism of mounting base guiding movement,Driving mechanism is connected with controller control,When tool wear length is to setting attrition value,Signal is reached controller by detection device,Cutter is pushed outwardly to compensate the abrasion length of cutter by controller control driving mechanism,The fixed structure to it is fixed after tool matrix guiding movement setpoint distance is provided between mounting base and tool matrix.
Description
Technical field
The utility model is related to shield machine technical fields, more particularly to a kind of shield machine and its tool wear monitoring and automatically
Compensation device.
Background technology
Shield machine cutter has extremely important effect, height, durability of cutter etc. pair in shield machine tunneling process
The driving speed of shield machine, efficiency have particularly important influence.In shield machine tunneling process, the effect of scraping class cutter has
Following two points：1) shear action, when shield machine tunnels, the knife edge part of cutter is constantly embedded in face, makes face slag
Soil realizes the driving of shield machine continuously off into Tu Cang；2) protective effect, in tool cutting process, cutterhead institute
The load being subject to is concentrated mainly on cutter, and cutterhead body is relatively small by load, therefore in long-time tunneling process,
The wear extent of cutter will be far longer than cutterhead body, and sizable protective effect is played to cutterhead body.
On existing cutter head of shield machine, scraping class cutter is fixed on cutterhead generally by the method for being threadedly coupled or welding
On, and height is certain value.In shield machine tunneling process, due to the continuous ablation of dregs, scraping class cutter is with certain
Rate continuously wear, when tool abrasion is larger, such as replace cutter not in time, cutterhead body will be damaged, caused
The damage deformation of cutterhead steel construction, will cause cutterhead thrust and torque excessive, and damage drive system when serious；If replacing cutter, by
It is narrow in the underground space, it is inconvenient, while being to prevent danger, also supporting need to be carried out in front of cutterhead or beat vertical shaft,
Cause the operating time longer, construction speed is by extreme influence.
Utility model content
The purpose of this utility model is to provide a kind of tool wear that can detect shield machine and can compensate abrasion automatically
The shield machine tool wear monitoring and autocompensation installation of height；Meanwhile the purpose of this utility model also resides in offer one kind
Use the tool wear monitoring and the shield machine of autocompensation installation.
To achieve the above object, a kind of shield machine tool wear monitoring of the utility model and autocompensation installation use
Following technical solution：A kind of shield machine tool wear monitoring and autocompensation installation, include for the cutterhead of shield machine company
The mounting base connect and the cutter being installed in mounting base, cutter include tool matrix and the fixation that mobile cooperation is slided with mounting base
The cutter cutlery being set on tool matrix, cutter cutlery protrude from tool matrix, are provided on tool matrix for detecting knife
The detection device of tool abrasion length, the tool wear monitoring and autocompensation installation further include the control being connect with detection device signal
Device processed, mounting base are internally provided with for driving tool matrix along the driving mechanism of mounting base guiding movement, driving mechanism and control
Device control connection processed, when tool wear length is to setting attrition value, signal is reached controller, controller control by detection device
Cutter is pushed outwardly to compensate the abrasion length of cutter by driving mechanism, is provided between mounting base and tool matrix to cutter base
The fixed structure that it is fixed after body guiding movement setpoint distance.
The detection device includes that the length being set on tool matrix extends at least along the guide direction of tool matrix
One hydraulic pressure duct, the end that the outer end face of hydraulic pressure duct towards tool matrix extends is cecum, and cecum is located at tool matrix
Between the cutter cutlery end face of the outer end face of outer end face and cutter cutlery far from tool matrix, each hydraulic pressure duct is communicated with hydraulic pressure
Oil pipe is both provided with oil pressure sensor on each hydraulic oil pipe, and each oil pressure sensor is connect with controller signals, on each fluid pressure line
It is both provided with control valve, each control valve is connected with controller control.
The quantity in the hydraulic pressure duct be two or more, and the outer end face of the cecum and tool matrix in each hydraulic pressure duct away from
From different.
The fixed structure includes the groove being radially disposed on tool matrix, and the quantity of groove is more than two and along knife
The guide direction interval setting for having matrix, be provided in mounting base for tool matrix by mounting hole, fixed structure further includes
The elastic non-return ring being set in mounting hole, be radially provided on the inner wall of elastic non-return ring coordinate with non-return ring block it is convex
It rises.
The groove is annular groove, and for protrusion to coincide the annular protrusion that is adapted to annular groove, groove is wedge groove, groove it is close
For the cell wall of the outer end face of tool matrix perpendicular to the guide direction of tool matrix, another cell wall of groove is globoidal structure.
It is ranked up according to the outer end face and the distance between the cecum in each hydraulic pressure duct of tool matrix, wherein arbitrary neighborhood
Distance is equal to the distance between two neighboring groove or is equal to two neighboring recessed between the cecum in two hydraulic pressure ducts of sequence
The multiple of the distance between slot.
The driving mechanism includes that the stroke directions that are set to inside mounting base are parallel with the guide direction of tool matrix
One end of hydraulic cylinder, hydraulic cylinder is connected in mounting base, and the other end of hydraulic cylinder is connected on tool matrix, and driving mechanism is also wrapped
The Hydraulic Elements of control hydraulic cylinder extension stroke are included, Hydraulic Elements are connected with the controller in a signal way..
The mounting base is separate structure, and mounting base includes connecting plate for being connect with cutterhead and passes through spiral shell with connecting plate
Follow closely the mounting cylinder of connection.
Be provided with sealing structure between the tool matrix and mounting base, sealing structure include be set to it is close in mounting base
Seal groove is equipped in o-ring groove for the sealing ring with the sealing cooperation of the lateral surface of tool matrix.
A kind of shield machine of the utility model adopts the following technical scheme that：A kind of shield machine, including cutterhead and tool wear
Detection and autocompensation installation, tool wear monitoring and autocompensation installation include the installation being connect for the cutterhead with shield machine
Seat and the cutter being installed in mounting base, cutter include sliding the tool matrix of mobile cooperation with mounting base and being fixedly installed on knife
Has the cutter cutlery on matrix, cutter cutlery protrudes from tool matrix, is provided on tool matrix long for detecting tool wear
The detection device of degree, the tool wear monitoring and autocompensation installation further include the controller being connect with detection device signal, peace
Dress seat is internally provided with for driving tool matrix along the driving mechanism of mounting base guiding movement, and driving mechanism is controlled with controller
Connection, when tool wear length is to setting attrition value, signal is reached controller by detection device, and controller controls driving mechanism
Cutter is pushed outwardly to compensate the abrasion length of cutter, is provided with to be oriented to tool matrix between mounting base and tool matrix and move
The fixed structure that it is fixed after dynamic setpoint distance.
The detection device includes that the length being set on tool matrix extends at least along the guide direction of tool matrix
One hydraulic pressure duct, the end that the outer end face of hydraulic pressure duct towards tool matrix extends is cecum, and cecum is located at tool matrix
Between the cutter cutlery end face of the outer end face of outer end face and cutter cutlery far from tool matrix, each hydraulic pressure duct is communicated with hydraulic pressure
Oil pipe is both provided with oil pressure sensor on each hydraulic oil pipe, and each oil pressure sensor is connect with controller signals, on each fluid pressure line
It is both provided with control valve, each control valve is connected with controller control.
The quantity in the hydraulic pressure duct be two or more, and the outer end face of the cecum and tool matrix in each hydraulic pressure duct away from
From different.
The fixed structure includes the groove being radially disposed on tool matrix, and the quantity of groove is more than two and along knife
The guide direction interval setting for having matrix, be provided in mounting base for tool matrix by mounting hole, fixed structure further includes
The elastic non-return ring being set in mounting hole, be radially provided on the inner wall of elastic non-return ring coordinate with non-return ring block it is convex
It rises.
The groove is annular groove, and for protrusion to coincide the annular protrusion that is adapted to annular groove, groove is wedge groove, groove it is close
For the cell wall of the outer end face of tool matrix perpendicular to the guide direction of tool matrix, another cell wall of groove is globoidal structure.
It is ranked up according to the outer end face and the distance between the cecum in each hydraulic pressure duct of tool matrix, wherein arbitrary neighborhood
Distance is equal to the distance between two neighboring groove or is equal to two neighboring recessed between the cecum in two hydraulic pressure ducts of sequence
The multiple of the distance between slot.
The driving mechanism includes that the stroke directions that are set to inside mounting base are parallel with the guide direction of tool matrix
One end of hydraulic cylinder, hydraulic cylinder is connected in mounting base, and the other end of hydraulic cylinder is connected on tool matrix, and driving mechanism is also wrapped
The Hydraulic Elements of control hydraulic cylinder extension stroke are included, Hydraulic Elements are connected with the controller in a signal way..
The mounting base is separate structure, and mounting base includes connecting plate for being connect with cutterhead and passes through spiral shell with connecting plate
Follow closely the mounting cylinder of connection.
Be provided with sealing structure between the tool matrix and mounting base, sealing structure include be set to it is close in mounting base
Seal groove is equipped in o-ring groove for the sealing ring with the sealing cooperation of the lateral surface of tool matrix.
The beneficial effects of the utility model：When cutter grinds length to setting attrition value, signal is reached control by detection device
Cutter is pushed outwardly to compensate the abrasion length of cutter, then by fixed structure to stretching out by device processed, controller control driving mechanism
Cutter afterwards is fixed.Realization can compensate tool abrasion, Ke Yiyou when tool wear length reaches certain value automatically
It imitates reduction shield machine and needs the time of tool changing because tool wear is serious, while reaching cutter height to maintain one always
Relative constant altitude range, and then protect cutterhead not frayed or wear extent is in a controllable level.
Description of the drawings
Fig. 1 is the tool wear monitoring and autocompensation installation in a kind of one embodiment of shield machine of the utility model
Structural schematic diagram.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, the every other embodiment that those of ordinary skill in the art are obtained all belongs to
In the range of the utility model protection.
The embodiment of a kind of shield machine of the utility model, as shown in Figure 1, including cutterhead and tool wear monitoring and automatically
Compensation device, tool wear monitoring and autocompensation installation include the mounting base 1 being connect for the cutterhead with shield machine and installation
Cutter in mounting base 1, cutter include sliding the tool matrix 2 of mobile cooperation with mounting base 1 and being fixedly installed on cutter base
Cutter cutlery 3 on body 2, cutter cutlery 3 protrude from tool matrix 2.It is provided on tool matrix 3 long for detecting tool wear
The detection device of degree and the controller 18 being connect with detection device signal, the CPU in order to control of controller 18.In the present embodiment, detection
Device includes the length that is set on tool matrix 2 along multiple hydraulic pressure ducts that the guide direction of tool matrix 2 extends, hydraulic pressure hole
The end that the outer end face 4 of road towards tool matrix extends is cecum, and cecum is located at 4 face of outer end and the cutter cutlery 3 of tool matrix
Between the cutter cutlery end face of outer end face 4 far from tool matrix, and the outer end face 4 of the cecum in each hydraulic pressure duct and tool matrix
Distance it is different.Each hydraulic pressure duct is communicated with hydraulic oil pipe 15, and oil pressure sensor is both provided on each hydraulic oil pipe 15
17, each oil pressure sensor 17 is connect with 18 signal of controller, and control valve 16, each control valve 16 are both provided on each fluid pressure line 15
It controls and connects with controller 18.Control valve 16 uses electrical ball valve, and electrical ball valve is usually in normally open, when certain leads to all the way
When pressure release occurs for the hydraulic oil in the hydraulic pressure duct reserved in tool matrix 2, the signal that oil pressure sensor 17 is sent out is by controller
18 receive, and controller 18 sends out instruction to corresponding electrical ball valve makes corresponding electrical ball valve close, to make pressure oil stop
Leak and ensure that other hydraulic pressure duct pressure in tool matrix are normal, oil pressure sensor 17 played in fluid pressure line monitoring and
Feed back the effect of the road hydraulic fluid pressure.
Mounting base 1 is internally provided with for driving tool matrix 2 along the driving mechanism of 1 guiding movement of mounting base, mounting base 1
The fixed structure to it is fixed after tool matrix guiding movement setpoint distance is provided between tool matrix 2.It is fixed
Structure includes the groove being radially disposed on tool matrix, and the quantity of groove is more than two and along the guiding side of tool matrix 2
Be arranged to interval, be provided in mounting base 1 for tool matrix 2 by mounting hole, fixed structure further includes being set to mounting hole
In elastic non-return ring 8, be radially provided with the protrusion coordinated with non-return ring block on the inner wall of elastic non-return ring 8, knife can be prevented
Tool matrix 2 retreats under stress, that is, ensures that tool matrix 2 can only be protruding, cannot bounce back, while can also play and lead
To effect keep tool matrix 2 mobile with non-return ring guiding movement to coordinate.Groove is annular groove, and protrusion is adapted to coincide with annular groove
Annular protrusion, groove is wedge groove, the guiding of the cell wall of the outer end face of the close tool matrix of groove perpendicular to tool matrix
Another cell wall in direction, groove is globoidal structure.According between the outer end face 4 and the cecum in each hydraulic pressure duct of tool matrix
Distance is ranked up, and distance is equal between two neighboring groove wherein between the cecum in the two of arbitrary neighborhood sequence hydraulic pressure duct
Distance.In the present embodiment by taking three hydraulic pressure ducts as an example, respectively first liquid of the cecum near the outer end face of tool matrix
The third hydraulic pressure duct 14 for pressing the outer end face of duct 12, cecum and tool matrix farthest and the third hydraulic pressure duct positioned at centre
13.Driving mechanism includes being set to stroke directions inside mounting base 1 hydraulic cylinder 9 parallel with the guide direction of tool matrix,
Mounting base 1 is internally provided with the first ear mount of hydraulic cylinder 10, and one end of hydraulic cylinder 9 is connected in the first ear mount of hydraulic cylinder 10, cutter
The second ear mount of hydraulic cylinder 11 is provided on matrix 2, the other end of hydraulic cylinder 9 is articulated and connected by axis pin in the second ear mount of hydraulic cylinder
On 11, driving mechanism further includes controlling hydraulic cylinder 9 to stretch the Hydraulic Elements of stroke, and Hydraulic Elements are connect with 18 signal of controller.
Be provided with sealing structure between tool matrix 2 and mounting base 1, sealing structure include be set to it is close in mounting base 1
Seal groove 7 is equipped in o-ring groove 7 for the sealing ring with the sealing cooperation of the lateral surface of tool matrix.Mounting base 1 is
Separate structure, mounting base 1 include connecting plate 5 for being connect with cutterhead and the mounting cylinder 6 being connected by screw with connecting plate 5.
O-ring groove 7 is set on the medial surface of connecting plate 5, and hydraulic cylinder 9 is set in the inner cavity of mounting cylinder 6.Hydraulic cylinder 9 is built-in with
Displacement sensor for detecting its stroke, displacement sensor are connect with 18 signal of controller, can be fed back in real time to controller 18
The flexible stroke of hydraulic cylinder 9, to achieve the purpose that detect 2 displacement of tool matrix.
Such as when the wear extent of cutter cutlery 3, tool matrix 2 reache a certain level the cecum in the first hydraulic pressure duct 12 is worn out
When, the fluid pressure line decompression, the oil pressure sensor 17 on this fluid pressure line, which receives to send to controller 18 after decompression signal, to be believed
Number, controller 18, which receives the electrical ball valve 16 after decompression signal immediately on this fluid pressure line and sends out action command, closes the electricity
Dynamic ball valve, while this pipeline decompression shows that tool abrasion is larger, controller 18 can also be sent out to the Hydraulic Elements of driving hydraulic cylinder 9
Go out signal, hydraulic cylinder 9 is made to stretch out certain value, when the displacement of the displacement sensor in hydraulic cylinder 9 is equal with setting value, displacement passes
Sensor sends out signal to controller 18, and controller 18, which sends out feedback signal, makes hydraulic cylinder 9 stop stretching out, and is installed on cutter peace at this time
The protrusion on non-return ring 8 on dress seat 1 is stuck on the wedge groove of tool matrix 2, prevents tool matrix 2 from being returned when shield machine tunnels
Contracting.When the wear extent of cutter cutlery 3, tool matrix 2 reaches a certain level again the cecum in the second hydraulic pressure hole 13 is worn out when,
Each element movement is as described above, when being further continued for that the cecum in third hydraulic pressure duct 14 is worn out, and each element movement is as described above, final
Achieve the purpose that cutter automatic compensation height.
Above-mentioned tool wear monitoring and autocompensation installation have the advantage that as follows：1) can detect tool abrasion and from
It is dynamic that wear extent is compensated, cutterhead is effectively protected from being seriously worn；2) device can be designed to have as needed
The device of multiple compensation function, can once mounting be used for multiple times, avoid the tool changing occupied time, substantially increase construction effect
Rate.
In the other embodiment of the utility model, between the cecum in the first hydraulic pressure duct and the cecum in the second hydraulic pressure duct
Distance be equal to the second hydraulic pressure duct cecum and third hydraulic pressure duct the distance between cecum, and the first hydraulic pressure duct is blind
The distance between the cecum at end and the second hydraulic pressure duct is equal to the multiple of the distance between two neighboring groove；Hydraulic cylinder can also
It is replaced by motor, is provided with the transmission knot for converting the rotational action of motor to linear motion between motor and tool matrix at this time
Structure, drive mechanism are connect with tool matrix；Mounting base may be integral structure；Groove may be triangular groove；Hydraulic pressure hole
The distance in road can be adjusted according to actual needs.
The embodiment of a kind of shield machine tool wear monitoring and autocompensation installation and a kind of above-mentioned each reality of shield machine
The structure for applying the tool wear monitoring and autocompensation installation in example is identical, and details are not described herein again.
Claims (10)
1. a kind of shield machine tool wear monitoring and autocompensation installation, it is characterised in that：Include for the knife with shield machine
The mounting base of disk connection and the cutter that is installed in mounting base, cutter include with mounting base slide mobile cooperation tool matrix and
The cutter cutlery being fixedly installed on tool matrix, cutter cutlery protrude from tool matrix, are provided on tool matrix for examining
The detection device of tool wear length is surveyed, the tool wear monitoring and autocompensation installation further include being connect with detection device signal
Controller, mounting base is internally provided with for driving tool matrix along the driving mechanism of mounting base guiding movement, driving mechanism
It controls and connects with controller, when tool wear length is to setting attrition value, signal is reached controller, controller by detection device
Cutter is pushed outwardly to compensate the abrasion length of cutter by control driving mechanism, is provided with to knife between mounting base and tool matrix
The fixed structure that it is fixed after tool matrix guiding movement setpoint distance.
2. shield machine tool wear monitoring according to claim 1 and autocompensation installation, it is characterised in that：The inspection
It includes the length that is set on tool matrix along at least one hydraulic pressure duct that the guide direction of tool matrix extends, liquid to survey device
The end that the outer end face for pressing duct towards tool matrix extends is cecum, and cecum is located at the outer end face and cutter cutlery of tool matrix
Between the cutter cutlery end face of outer end face far from tool matrix, each hydraulic pressure duct is communicated with hydraulic oil pipe, each hydraulic oil pipe
On be both provided with oil pressure sensor, each oil pressure sensor is connect with controller signals, and control valve is both provided on each fluid pressure line,
Each control valve is connected with controller control.
3. shield machine tool wear monitoring according to claim 2 and autocompensation installation, it is characterised in that：The liquid
It is two or more to press the quantity in duct, and the cecum in each hydraulic pressure duct is different at a distance from the outer end face of tool matrix.
4. shield machine tool wear monitoring according to claim 3 and autocompensation installation, it is characterised in that：It is described solid
It includes the groove being radially disposed on tool matrix to determine structure, and the quantity of groove is more than two and along the guiding side of tool matrix
Be arranged to interval, be provided in mounting base for tool matrix by mounting hole, fixed structure further includes being set in mounting hole
Elastic non-return ring, be radially provided with the protrusion coordinated with non-return ring block on the inner wall of elastic non-return ring.
5. shield machine tool wear monitoring according to claim 4 and autocompensation installation, it is characterised in that：It is described recessed
Slot is annular groove, and for protrusion to coincide the annular protrusion that is adapted to annular groove, groove is wedge groove, the outer end of the close tool matrix of groove
For the cell wall in face perpendicular to the guide direction of tool matrix, another cell wall of groove is globoidal structure.
6. shield machine tool wear monitoring according to claim 5 and autocompensation installation, it is characterised in that：According to knife
The outer end face and the distance between the cecum in each hydraulic pressure duct for having matrix are ranked up, wherein the two of arbitrary neighborhood sequence hydraulic pressure
Distance is equal to the distance between two neighboring groove or the distance between the two neighboring groove being equal between the cecum in duct
Multiple.
7. the shield machine tool wear monitoring according to any one of claim 1-6 and autocompensation installation, feature
It is：The driving mechanism includes being set to stroke directions inside the mounting base hydraulic pressure parallel with the guide direction of tool matrix
One end of cylinder, hydraulic cylinder is connected in mounting base, and the other end of hydraulic cylinder is connected on tool matrix, and driving mechanism further includes control
The Hydraulic Elements of hydraulic cylinder extension stroke processed, Hydraulic Elements are connected with the controller in a signal way..
8. shield machine tool wear monitoring according to claim 1 and autocompensation installation, it is characterised in that：The peace
Dress seat is separate structure, and mounting base includes connecting plate for being connect with cutterhead and the installation being connected by screw with connecting plate
Cylinder.
9. shield machine tool wear monitoring according to claim 1 and autocompensation installation, it is characterised in that：The knife
It is provided with sealing structure between tool matrix and mounting base, sealing structure includes the o-ring groove being set in mounting base, sealing
It is equipped in circle groove for the sealing ring with the sealing cooperation of the lateral surface of tool matrix.
10. a kind of shield machine, including cutterhead, it is characterised in that：It further include the tool wear described in any one of claim 1-9
Detection and autocompensation installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602706.0U CN207715153U (en) | 2017-11-24 | 2017-11-24 | A kind of shield machine and its tool wear monitoring and autocompensation installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721602706.0U CN207715153U (en) | 2017-11-24 | 2017-11-24 | A kind of shield machine and its tool wear monitoring and autocompensation installation |
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| Publication Number | Publication Date |
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| CN207715153U true CN207715153U (en) | 2018-08-10 |
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ID=63062238
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| CN201721602706.0U Active CN207715153U (en) | 2017-11-24 | 2017-11-24 | A kind of shield machine and its tool wear monitoring and autocompensation installation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035724A (en) * | 2017-11-24 | 2018-05-15 | 徐工集团凯宫重工南京有限公司 | A kind of shield machine and its tool wear monitoring and autocompensation installation |
| CN110331985A (en) * | 2019-07-30 | 2019-10-15 | 中铁工程装备集团有限公司 | Normal pressure cutter knife cylinder retracts extremely detects preventing mean and detection prevention method |
| CN112212816A (en) * | 2020-10-10 | 2021-01-12 | 深圳市山龙智控有限公司 | Cutter abrasion repairing method based on numerical control platform |
-
2017
- 2017-11-24 CN CN201721602706.0U patent/CN207715153U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035724A (en) * | 2017-11-24 | 2018-05-15 | 徐工集团凯宫重工南京有限公司 | A kind of shield machine and its tool wear monitoring and autocompensation installation |
| CN108035724B (en) * | 2017-11-24 | 2024-04-16 | 徐工集团凯宫重工南京有限公司 | Shield machine and cutter abrasion detection and automatic compensation device thereof |
| CN110331985A (en) * | 2019-07-30 | 2019-10-15 | 中铁工程装备集团有限公司 | Normal pressure cutter knife cylinder retracts extremely detects preventing mean and detection prevention method |
| CN112212816A (en) * | 2020-10-10 | 2021-01-12 | 深圳市山龙智控有限公司 | Cutter abrasion repairing method based on numerical control platform |
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