CN202562455U - Detection device for shield machine cutter abrasion loss - Google Patents
Detection device for shield machine cutter abrasion loss Download PDFInfo
- Publication number
- CN202562455U CN202562455U CN 201220125486 CN201220125486U CN202562455U CN 202562455 U CN202562455 U CN 202562455U CN 201220125486 CN201220125486 CN 201220125486 CN 201220125486 U CN201220125486 U CN 201220125486U CN 202562455 U CN202562455 U CN 202562455U
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- China
- Prior art keywords
- shield machine
- serrated knife
- rest
- pick
- wear extent
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Abstract
The present utility model discloses a detection device for shield machine cutter abrasion loss. A detection probe which is connected with a detection instrument input end through a data line is arranged inside an advanced serrated knife around a shield machine, the detection instrument is connected with a shield machine PLC control system through a signal output device, and the shield machine PLC control system is connected and communicated with a touch screen. In the device, the height of an alloy strip of the advanced serrated knife around the shield machine is detected to detect abrasion loss of the peripheral serrated knife, shortages that in a hydraulic limit type detection method, an alarm is only given out when a cutter is abraded to a certain height can be overcome, and the detection device is capable of real-time continuing; through welding the peripheral advanced serrated knife on a knife pedestal, a problem that abrasion detection of a welding type cutter is difficult can be solved, detected data can be directly displayed and recorded on a touch screen in real time in an operation room through a conductive slide wire loop, and the use is more convenient. Moreover, the device is high in measuring precision, strong in instantaneity and high in reliability.
Description
Technical field
The utility model is specifically related to a kind of pick-up unit that is used for the shield machine cutter wear extent, is used for the shield machine industry and detects the go ahead of the rest wear extent of serrated knife of cutterhead periphery.
Background technology
At present, along with the continuous propelling of Chinese Urbanization's process, shield method is able to use widely in the subway work at home, and along with the propelling of this process, the development of shield structure demonstrates big section, the big degree of depth, several megatrend of long distance.These several megatrend have all proposed high requirement to the cutterhead and the cutter of shield structure.In time the wear law of grasp cutter, wear extent are to being provided with rational boring parameter, planned replacing cutter decisive role.
Weak soil shield structure in clays such as Beijing, Shenyang, sandy soil, sandy gravel and mixing stratum; The cutterhead that is representative with Japanese weak soil shield structure particularly all is provided with periphery serrated knife in advance; Periphery in advance serrated knife size and highly all greater than other serrated knife on the spoke; Its main effect is to cut the soil body in the cutterhead scope in advance, plays that the soil body in the knife cutting scope is isolated from the outside, and reduces the pressure of the soil body to serrated knife on the spoke; And then reduce the friction force of the soil body to the spoke upper tool pan, play the effect that reduces the serrated knife wearing and tearing.Construction through several typical stratum facts have proved that the peripheral life-span of serrated knife is in advance directly determining the driving life-span of cutterhead.In case periphery serrated knife wearing and tearing in advance, the diameter of knife cutting will be difficult to guarantee, bring bigger difficulty for the propelling of shield structure.Because periphery is the singularity of serrated knife position in advance; Serrated knife adopts the assembling form of welding more in advance; Make that equipment electronic devices and components difficulty strengthens in serrated knife, therefore take a kind of rational form to judge that the peripheral wear extent of cutter in advance becomes a problem of needing solution badly.
The patent No. be 201010280528.0 Chinese utility model patent " shield structure blade wears pick-up unit ", the patent No. be the 201020157936.2 Chinese utility model patents " a kind of shield machine is with fluid pressure type abrasion detection cutter " and the patent No. 201020590360.9 be several pieces of patents of Chinese utility model patent " shield machine detection cutter " in what introduce all is a kind of fluid pressure type abrasion detection scrapers, the concrete pattern that detects cutter is difference to some extent.
The utility model content
The purpose of the utility model is to provide a kind of pick-up unit that is used for the shield machine cutter wear extent, can real-time continuous ground detect the go ahead of the rest wear extent of serrated knife of shield machine periphery.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is following:
A kind of pick-up unit that is used for the shield machine cutter wear extent;, the shield machine periphery is provided with the detection probe that is connected with the detector input end through data line in going ahead of the rest serrated knife; Said detector connects shield machine PLC control system through signal output apparatus, and said shield machine PLC control system is connected with a touch-screen and communication.
Wherein, the said shield machine periphery serrated knife of going ahead of the rest is welded on the tool rest, is provided with the through hole that said data line passes in the said tool rest.
Further, the go ahead of the rest blade part of serrated knife of said shield machine periphery is equipped with alloy bar; Said shield machine periphery is gone ahead of the rest and is provided with the blind hole of placing said detection probe in the serrated knife body, and the go ahead of the rest distance from top of serrated knife of the top, hole of said blind hole to said shield machine periphery is identical with said alloy bar length.
More excellent, said detection probe length is consistent with said blind hole depth.
The said shield machine periphery serrated knife matrix surface of going ahead of the rest is coated with wearing layer, and the matrix side is provided with wear-resistant block.
Said signal output apparatus is conduction slip ring.
Said data line passes the input end that connects said detector behind the swivel adapter head.
Said shield machine PLC control system is connected with said touch-screen through concentric cable.
Wherein, said data line is a cable.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model goes ahead of the rest through detecting the shield machine periphery that the height of alloy bar detects peripheral serrated knife wear extent on the serrated knife; Having overcome the defective that just can report to the police when hydraulic pressure limiting equation detection mode can only wear up to a certain height to cutter, is a kind of pick-up unit of ability real-time continuous; Be welded on a tool rest through serrated knife that periphery is gone ahead of the rest, solved the difficult problem of welded type tool wear detection, use the detection data directly also to touch through conduction slip ring simultaneously and show in real time and record that it is more convenient to use at operation room; In addition, the utility model measuring accuracy is high, real-time, reliability is high.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Fig. 1 is a kind of structural representation that is used for the pick-up unit of shield machine cutter wear extent that the utility model embodiment provides.
Fig. 2 is the enlarged drawing of A part among Fig. 1.
Reference numeral: 1-shield machine periphery go ahead of the rest serrated knife, 2-blind hole, 3-detection probe, 4-tool rest, 5-through hole, 6-data line, 7-swivel adapter head, 8-shell, 9-detector, 10-signal output apparatus, 11-shield machine PLC control system, 12-touch-screen.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing.
The utility model be utilize be installed in the shield machine periphery go ahead of the rest detection probe in the serrated knife detect periphery in advance the height of serrated knife alloy reflect the wear extent of peripheral serrated knife wearing and tearing.
The utility model is through detecting go ahead of the rest serrated knife but not the wear extent of scraper has overcome the defective that just can report to the police when hydraulic pressure limiting equation detection mode can only wear up to a certain height to cutter of shield machine periphery, is a kind of pick-up unit that can real-time continuous.
Referring to Fig. 1; A kind of pick-up unit that is used for the shield machine cutter wear extent;, the shield machine periphery is provided with the detection probe 3 that is connected with detector 9 input ends through data line 6 in going ahead of the rest serrated knife 1; Said detector 9 connects shield machine PLC control system 11 through signal output apparatus 10, and said shield machine PLC control system 11 is connected with a touch-screen 12 and communication.
Wherein, the said shield machine periphery serrated knife 1 of going ahead of the rest is welded on the tool rest 4, is provided with the through hole 5 that said data line passes in the said tool rest 4.Be welded on the tool rest through serrated knife that the shield machine periphery is gone ahead of the rest, solved this welded type tool wear and detected difficult problem.
Further, the go ahead of the rest blade part of serrated knife 1 of said shield machine periphery is equipped with alloy bar; Said shield machine periphery is gone ahead of the rest and is provided with the blind hole 2 of placing said detection probe 3 in serrated knife 1 body, and the go ahead of the rest distance from top of serrated knife of the top, hole of said blind hole 2 to said shield machine periphery is identical with said alloy bar length.
More excellent, said detection probe 3 length are consistent with said blind hole 2 degree of depth.
The said shield machine periphery serrated knife matrix surface of going ahead of the rest is coated with wearing layer, and the matrix side is provided with wear-resistant block.Can improve the wearing quality of cutter like this.
Said signal output apparatus 10 is conduction slip ring.The data that detect through conduction slip ring can show in real time and record at operation room directly that it is more convenient to use.
Said data line 6 passes the input end that a swivel adapter head 7 backs connect said detector 9.Said swivel adapter head 7 is installed in the shell 8.
Said shield machine PLC control system 11 is connected with said touch-screen 12 through concentric cable.
Wherein, said data line 6 is a cable.
Said detector 9 is a supersonic thickness meter.
A kind of detection method that is applied to the pick-up unit of shield machine cutter wear extent, step is following:
Step 1, detector 9 calibrations.Standard thickness plate so that 2mm is thick is forced calibration to detector 9, avoids occurring measuring error.
Step 2, the data line 6 of detection probe 3 is linked to each other with detector 9, as the source of detecting data.
Step 3, DOL Data Output Line is input to the AD modular converter of shield machine PLC control system 11 through signal output apparatus 10.
Step 4, through message exchange between the master-salve station of PLC control system 11, can real-time continuous ground on the touch-screen 12 show the go ahead of the rest height of serrated knife 1 of shield machine periphery.
Said detection probe is installed in the shield machine periphery and goes ahead of the rest in the serrated knife 1; Periphery is gone ahead of the rest after serrated knife 1 and tool rest 4 welding; Be welded on the cutterhead again; Through being attached to the penetration pipe of cutterhead spoke side, insert detector 9 after delivering to native bulkhead rear portion through swivel adapter head 7 from tool rest 4 cables that are connected with detection probe that draw, the data that detector 9 is read are through being installed in the AD modular converter that conduction slip ring 10 on the swivel adapter head 7 is input to shield machine PLC control system 11; Through message exchange between the master-salve station of this PLC control system 11, measurement data shows to real-time continuous on said touch-screen 12 again.Said PLC control system is made up of A1S68AD, A1SX42-S1, A1SJ71BR11, A2USHCPU-S1 and A1S61PN series of products.
Under the same conditions, ultrasound wave depends on the thickness of material the two-way time in material.If equal the cycle of ultrasonic vibration two-way time just, will produce resonance.When resonance, transmitter adds to the load meeting flip-flop of oscillator, makes the corresponding change of oscillator electric current thereupon.Oscillation frequency when writing down electric current and change through indicator just can be confirmed the time that the ultrasound wave round trip is required, thereby can measure the go ahead of the rest height of serrated knife alloy of periphery.
In welding process, supersonic thickness meter is damaged; Weld tool rest 4 in the go ahead of the rest bottom of serrated knife 1 of periphery in advance; Tool rest 4 welding are accomplished; And confirm probe 3 in blind hole 2, install intact after, the cable 6 that connects probe 3 is caused in the box spoke of cutterhead through the through holes 5 in the tool rest 4, and periphery is detected serrated knife 1 in advance is welded on the cutterhead.Cable 6 passes to detector 9 enterprising line data and reads through passing swivel adapter head 7; Data after reading transfer to the AD modular converter of shield machine PLC control system 11 after through conduction slip ring 10, reach operation room through the communication of concentric cable between the station of PLC control system 11 and on touch-screen 12, are achieved.
The utility model is compared with traditional pick-up unit, has following advantage:
1, the cutter of ultrasound wave abrasion detection is go ahead of the rest serrated knife but not a scraper of periphery, and the assembling pattern of serrated knife is welding in advance, and the utility model has solved this welded type tool wear and detects difficult problem through increasing in advance the tool rest of serrated knife.
2, the detection position is the most peripheral serrated knife of going ahead of the rest, and this position directly determines the serviceable life of cutterhead, can represent the abrasion condition of cutter.
3, the data that detect can show in real time and record at operation room directly that through conduction slip ring it is more convenient to use, for research tool wear rule provides strong support.
The utlity model has measuring accuracy height, real-time, high reliability features; Can foundation be provided for the rule of research tool wear, the situation of in time grasping tool wear through this device, strong support be provided for carry out planned tool changing at long distance construction.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (9)
1. pick-up unit that is used for the shield machine cutter wear extent; It is characterized in that;, the shield machine periphery is provided with the detection probe (3) that is connected with detector (9) input end through data line (6) in going ahead of the rest serrated knife (1); Said detector (9) connects shield machine PLC control system (11) through signal output apparatus (10), and said shield machine PLC control system (11) is connected with a touch-screen (12) and communication.
2. the pick-up unit that is used for the shield machine cutter wear extent according to claim 1 is characterized in that, the said shield machine periphery serrated knife (1) of going ahead of the rest is welded on the tool rest (4), is provided with the through hole (5) that said data line passes in the said tool rest (4).
3. the pick-up unit that is used for the shield machine cutter wear extent according to claim 2 is characterized in that, the go ahead of the rest blade part of serrated knife (1) of said shield machine periphery is equipped with alloy bar; Said shield machine periphery is gone ahead of the rest and is provided with the blind hole (2) of placing said detection probe (3) in serrated knife (1) body, and the go ahead of the rest distance from top of serrated knife of the top, hole of said blind hole (2) to said shield machine periphery is identical with said alloy bar length.
4. the pick-up unit that is used for the shield machine cutter wear extent according to claim 3 is characterized in that, said detection probe (3) length is consistent with said blind hole (2) degree of depth.
5. the pick-up unit that is used for the shield machine cutter wear extent according to claim 3 is characterized in that, the said shield machine periphery serrated knife matrix surface of going ahead of the rest is coated with wearing layer, and the matrix side is provided with wear-resistant block.
6. according to claim 1 or the 5 described pick-up units that are used for the shield machine cutter wear extent, it is characterized in that said signal output apparatus (10) is conduction slip ring.
7. according to claim 1 or the 5 described pick-up units that are used for the shield machine cutter wear extent, it is characterized in that said data line (6) passes the input end that a swivel adapter head (7) back connects said detector (9).
8. according to claim 1 or the 5 described pick-up units that are used for the shield machine cutter wear extent, it is characterized in that said shield machine PLC control system (11) is connected with said touch-screen (12) through concentric cable.
9. the pick-up unit that is used for the shield machine cutter wear extent according to claim 1 is characterized in that, said data line (6) is a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125486 CN202562455U (en) | 2012-03-29 | 2012-03-29 | Detection device for shield machine cutter abrasion loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220125486 CN202562455U (en) | 2012-03-29 | 2012-03-29 | Detection device for shield machine cutter abrasion loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202562455U true CN202562455U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220125486 Expired - Fee Related CN202562455U (en) | 2012-03-29 | 2012-03-29 | Detection device for shield machine cutter abrasion loss |
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| Country | Link |
|---|---|
| CN (1) | CN202562455U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607478A (en) * | 2012-03-29 | 2012-07-25 | 中建市政建设有限公司 | Detection device and detection method for wear loss of shield machine cutter |
| CN109883470A (en) * | 2019-01-18 | 2019-06-14 | 北京工业大学 | Cutter head of shield machine condition monitoring system and method |
-
2012
- 2012-03-29 CN CN 201220125486 patent/CN202562455U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607478A (en) * | 2012-03-29 | 2012-07-25 | 中建市政建设有限公司 | Detection device and detection method for wear loss of shield machine cutter |
| CN102607478B (en) * | 2012-03-29 | 2015-04-15 | 中建交通建设集团有限公司 | Detection device and detection method for wear loss of shield machine cutter |
| CN109883470A (en) * | 2019-01-18 | 2019-06-14 | 北京工业大学 | Cutter head of shield machine condition monitoring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20200329 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |