CN102445143A - Device for detecting wear of apparatus and shield machine provided with same - Google Patents
Device for detecting wear of apparatus and shield machine provided with same Download PDFInfo
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- CN102445143A CN102445143A CN2011102869906A CN201110286990A CN102445143A CN 102445143 A CN102445143 A CN 102445143A CN 2011102869906 A CN2011102869906 A CN 2011102869906A CN 201110286990 A CN201110286990 A CN 201110286990A CN 102445143 A CN102445143 A CN 102445143A
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- resistance unit
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- utensil
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Abstract
The invention provides a device for detecting wear of an apparatus and a shield machine provided with the same. The device for detecting the wear of the apparatus provided by the invention comprises a resistance unit which is arranged on the apparatus to be detected and can be worn synchronously along with the apparatus, wherein the resistance unit is connected to a fixed-voltage loop; the current intensity of the resistance unit corresponds to the wearing capacity of the resistance piece one by one; and the wearing capacity of the resistance unit corresponds to the wearing capacity of the apparatus one by one. In the shield machine provided by the invention, the device for detecting the wear of the apparatus is arranged. Due to the adoption of the technical scheme, the device has the advantages of simple structure, low cost and easiness for detecting.
Description
Technical field
The present invention relates to engineering machinery field, more specifically, relate to the device of a kind of appliance wearing and tearing and have its shield machine.
Background technology
Shield machine is easy to be worn when tunneling stratum such as gravel, gravel, rock, thereby causes the driving cutterhead to reduce greatly with cutter life, usually makes the boring parameter sudden change, delays and tunnel the duration.Therefore, need the cutter of shield machine and the wearing and tearing of cutter are detected, conventional detection mainly adopts the detection wear condition of gear, personal hydraulic pressure signal detection etc., above-mentioned detection method complex structure, and cost is higher.
Summary of the invention
The shield machine that the present invention is intended to propose a kind of device of appliance wearing and tearing and has it is to provide the device of a kind of detection cutter simple in structure, lower-cost or cutterhead wearing and tearing.
According to an aspect of the present invention, a kind of device of appliance wearing and tearing is provided, has comprised: resistance unit is installed on the utensil to be detected and also can weares and teares synchronously with utensil; Resistance unit is connected in the level pressure loop, and the strength of current of resistance unit is corresponding one by one with the wear extent of resistance unit, and the wear extent of resistance unit is corresponding one by one with the wear extent of utensil.
Further, the device of this appliance wearing and tearing also comprises: current detecting unit is used to detect the strength of current of resistance unit; Processing unit, the strength of current that detects according to current detecting unit calculates the wear extent of utensil.
Further, the device of this appliance wearing and tearing also comprises: display unit is used for the wear extent of the utensil that display processing unit calculates.
Further, the device of this appliance wearing and tearing also comprises judging unit and alarm unit, and wherein, whether judging unit is used to judge strength of current less than predetermined value, when strength of current during less than predetermined value, sends alerting signal through alarm unit.
Further, resistance unit is elongated, and the xsect uniformity of resistance unit; Processing unit comprises computing unit, and computing unit is according to following formula I
x* L=I * (L-L
x) calculate the wear extent L of resistance unit
x, wherein, I is the initial current intensity of the resistance unit that under the level pressure loop, records, I
xBe the real-time current intensity of resistance unit, L is the initial length of resistance unit.
Further, resistance unit is concordant with the initial position of utensil wear tip near the initial position of an end of utensil wear tip.
Further, resistance unit is a plurality of, and each resistance unit is parallel to the level pressure loop; A plurality of resistance units are provided with along the wrong successively back of the wear direction of utensil, make each resistance unit corresponding to the different length section in the continuous length scope of utensil.
Further, utensil is cutter or the cutterhead that is used for mounting cutter, and resistance unit is embedded in cutter or cutterhead.
Further, cutter or cutterhead are the cutter or the cutterhead of shield machine.
According to another aspect of the present invention, a kind of shield machine is provided also, this shield machine is provided with the device of above-mentioned appliance wearing and tearing.
According to technical scheme of the present invention, can be because of being equipped with on the utensil that detects abrasion condition at need with the resistance unit of the synchronous wearing and tearing of utensil, resistance unit is connected in the level pressure loop; When resistance unit and utensil wore and tore synchronously, the resistance of resistance unit became greatly gradually, and strength of current diminishes gradually; The strength of current of resistance unit is corresponding one by one with the wear extent of resistance unit, and the wear extent of resistance unit is corresponding one by one with the wear extent of utensil, promptly can pass through the degree of wear of the variation perception utensil of strength of current easily; With respect to prior art; Have simple in structurely, cost is low, the advantage that is easy to detect.
Description of drawings
The accompanying drawing that constitutes a part of the present invention is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, does not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the structure of first preferred embodiment of the invention;
Fig. 2 has schematically shown the structure of current detecting unit, judging unit and alarm unit in the first preferred embodiment of the invention;
Fig. 3 has schematically shown the preferred implementation of processing unit in the first preferred embodiment of the invention; And
Fig. 4 has schematically shown the structure of second preferred embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
Show first preferred embodiment of the device of a kind of appliance wearing and tearing of the present invention referring to Fig. 1, as shown in the figure, the device of these appliance wearing and tearing comprises resistance unit 1, and resistance unit 1 is connected in the level pressure loop.Resistance unit 1 is installed on the utensil to be detected 2 and can weares and teares synchronously with utensil 2, and this utensil 2 is generally metal material, for example perhaps is the cutterhead of mounting cutter for the cutter that is used to cut.Among Fig. 1; The arrow direction is the wear direction of utensil 2; The left end of utensil 2 is a wear tip 21; Resistance unit 1 is concordant with the initial position of utensil wear tip 21 near the initial position of an end of utensil wear tip 21, and resistance unit 1 weares and teares with utensil 2 synchronously, makes the wear extent (length of promptly wearing and tearing) of wear extent (length of promptly wearing and tearing) and utensil 2 of resistance unit 1 identical.Need to prove; For guaranteeing the synchronous wearing and tearing of resistance unit 1 and utensil 2; Resistance unit 1 is selected hardness and the much the same material of metal usually for use, preferably resistance unit 1 is embedded in utensil 2, and resistance unit 1 own vol is less usually; So that resistance unit 1 is not allowed is frangible, can reach and utensil 2 with the degree of life-span wearing and tearing.
As shown in Figure 1, usually resistance unit 1 is connected power supplys away from an end of wear tip 21 through lead 3, form the level pressure loop, so that effective use length of resistance unit 1 reaches the longest.In utensil 2 wear processes; Resistance unit 1 becomes big perpendicular to the resistance that the sectional area of direction of current reduces render electrical resistor 1; Strength of current diminishes thereupon; And the wear extent of the strength of current of resistance unit 1 and resistance unit 1 is to concern one to one, and the wear extent of resistance unit 1 also is to concern one to one with the wear extent of utensil 2 simultaneously, can learn the wear extent about utensil 2 thus.Such as electric current is not maximum when wearing and tearing take place resistance unit 1, does not does not wear and tear corresponding to utensil 2; After resistance unit 1 weares and teares fully, the level pressure loop open circuit, electric current is zero, utensil 2 weares and teares corresponding to the part of resistance unit 1 fully.Like this; The length of resistance unit 1 can rationally be set, and the maximum that makes the length of resistance unit 1 equal utensil 2 allows wearing and tearing length, the wear condition of appliance 2 at an easy rate; Make wear detector of the present invention with respect to prior art; Have simple in structurely, cost is low, the advantage that is easy to detect.
By it can also be seen that among Fig. 1, preferably, the device of these appliance wearing and tearing also comprises current detecting unit 4 and processing unit 5.Current detecting unit 4 for example for being connected on level pressure current in loop meter, is used to detect the strength of current of resistance unit 1.Processing unit 5 is connected with current detecting unit 4 signals, and calculates the wear extent of utensil 2 according to the strength of current that current detecting unit 4 detects.Particularly, the wear extent of utensil 2 can be through the wear extent of calculated resistance part 1 at first, and the wear extent by the wear extent calculating appliance 2 of resistance unit 1 draws again.Such as the wear tip of the left end of resistance unit 1 and utensil 2 is when original state is concordant, and the wear extent of resistance unit 1 equals the wear extent of utensil 2; If under original state; Right side and the two that the left end of resistance unit 1 is arranged in utensil 2 wear tip 21 are separated with predetermined distance d 1 (not shown this kind embodiment of Fig. 1); Utensil 2 in predetermined distance d 1 scope at first weares and teares; Utensil 2 weares and teares with resistance unit 1 synchronously then, and at this moment, the wear extent that the wear extent of utensil 2 equals resistance unit 1 adds predetermined distance d 1.
Preferably, the xsect uniformity of the elongated and resistance unit 1 of resistance unit 1, for example resistance unit 1 cylindrical or cuboid.With reference to figure 3, the wear extent L of resistance unit 1
xCalculate through following mode: processing unit 5 comprises computing unit 51 further, and computing unit 51 is according to formula I
x* L=I * (L-L
x) calculate the wear extent L of resistance unit 1
xWherein, I is the initial current intensity of the resistance unit 1 that under the level pressure loop, records, I
xBe the real-time current intensity of resistance unit, L is the initial length of resistance unit 1.Resistance value R=ρ * l because of resistance unit 1
l/ S, ρ are resistivity, and S is the sectional area in the cross section parallel with the direction of resistance unit length L among Fig. 1, l
lLength direction vertical with the direction of resistance unit length L, under the level pressure loop, the product of the resistance value of resistance 1 and real-time current intensity is definite value, i.e. I
x* ρ * l
l/ S
y=I * ρ * l
l/ S, wherein, S
yFor resistance unit 1 perpendicular to l
lThe real-time sectional area in the cross section of direction, S are that resistance unit 1 is perpendicular to l
lThe initial cross-section in the cross section of direction is long-pending, again because of resistance unit 1 xsect uniformity, so S
y/ S=(L-L
x)/L, and then draw I
x* L=I * (L-L
x).Computing unit 51 calculates the wear extent L of resistance unit 1
xAfter, combine the resistance unit 1 and the position relation of utensil 2 promptly can draw the wearing and tearing length of utensil 2 again, realize the abrasion condition of utensil 2 is carried out the function that stepless continuous detects.
Preferably, the device of this appliance wearing and tearing also comprises: display unit 6 is used for the wear extent of the utensil 2 that display processing unit 5 calculates, so that the wear condition of utensil 2 is analyzed and observed.Certainly; Also display unit 6 can be set, when the wear extent that for example calculates utensil 2 when processing unit 5 has reached maximal value, can send braking instruction to the actuating unit of driving implement 2 through control module; Directly stop the motion of utensil 2, realize robotization control utensil 2.
Preferably; With reference to figure 2; The device of these appliance wearing and tearing also comprises judging unit 7 and alarm unit 8, and judging unit 7 is connected with current detecting unit 4 signals, and judging unit 7 is used to judge that whether strength of current is less than predetermined value; When strength of current during, send alerting signal through alarm unit 8 less than predetermined value.The definite of above-mentioned predetermined value can be obtained by following method: at first confirm the greatest wear amount of utensil 2, calculate the greatest wear amount of resistance unit 1 then, then according to I
x* L=I * (L-L
x) strength of current (above-mentioned predetermined value) when drawing corresponding resistance unit 1 greatest wear amount.Certainly; Judging unit 7 can also be connected with processing unit 5 signals, calculate the wear extent of utensil 2 when processing unit 5 after, judging unit is compared the wear extent of utensil 2 with the maximum wear extent that allows; If the wear extent of utensil 2 allows wear extent greater than maximum, then report to the police through alarm unit 8.
Come again referring to Fig. 4, show second preferred embodiment of the present invention, be that with the difference of above-mentioned first preferred embodiment resistance unit 1 is three, be respectively 11,12,13, three resistance units of resistance unit and be provided with along the wrong successively back of the wear direction of utensil 2.In Fig. 4, be a left side with utensil 2 place sides specifically, swivel adapter head 9 place sides are that the right side describes; The left end of resistance unit 11 is concordant with the wear tip of utensil 2; The left end of resistance unit 12 is concordant with the right-hand member of resistance unit 11, and the left end of resistance unit 13 is concordant with the right-hand member of resistance unit 12, makes each resistance unit corresponding to the different length section in the continuous length scope of utensil 2; The right-hand member of each resistance unit is connected with power supply through lead respectively, makes each resistance unit 1 be parallel to the level pressure loop.Understand easily, when resistance unit 11 wearing and tearing, the real-time wear extent of resistance unit 11 equals the real-time wear extent of utensil 2; When resistance unit 12 wearing and tearing, the real-time wear extent of resistance unit 12 adds that the length of resistance unit 11 equals the real-time wear extent of utensil 2; When resistance unit 13 wearing and tearing, the real-time wear extent of resistance unit 13 adds that the length of resistance unit 11 and resistance unit 12 equals the real-time wear extent of utensil 2.The successive range that 1 pair of utensil 2 of three resistance units is set on utensil 2 carries out measuring mode, and each resistance unit is not easy fragmentation and can improves measuring accuracy.Understand easily, in practical application, according to the length of utensil 2, can suitably set the number of resistance unit 1, and be not limited to the embodiment of three above-mentioned resistance units.
The present invention also provides a kind of shield machine, and this shield machine is provided with the device of above-mentioned appliance wearing and tearing.In conjunction with reference to figure 4, the utensil 2 among Fig. 4 can be the cutter of shield machine, also can be the cutterhead of mounting cutter.The cutter of shield machine is installed on the cutterhead, and cutterhead is installed on the swivel adapter head 9, and swivel adapter head 9 drives cutterhead and tool motion under the driving of actuating unit, and being constructed in stratum such as gravel, gravel, rock, cutter and cutterhead wear and tear simultaneously.Through the device of above-mentioned appliance wearing and tearing is set on shield machine; Promptly on cutter and/or cutterhead, be embedded resistance unit; The resistance unit power supply in the lead through wearing swivel adapter head 9 and the operation room, current detecting unit etc. respectively is connected; Through finally demonstrating the real-time wearing and tearing of cutter and/or cutterhead after the processing unit processes through the guidance panel in the operation room 61; Can be implemented in the function of interior continuous detecting cutter of operation room and/or cutterhead wearing and tearing, and rise simple in structure, easy for installation, easy to implement.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the device of appliance wearing and tearing is characterized in that, comprising:
Resistance unit (1) is installed in utensil to be detected (2) and goes up also and can wear and tear synchronously with said utensil (2); Said resistance unit (1) is connected in the level pressure loop, and the strength of current of said resistance unit (1) is corresponding one by one with the wear extent of said resistance unit (1), and the wear extent of said resistance unit (1) is corresponding one by one with the wear extent of said utensil (2).
2. device according to claim 1 is characterized in that, also comprises:
Current detecting unit (4) is used to detect the strength of current of said resistance unit (1);
Processing unit (5), the strength of current that detects according to said current detecting unit (4) calculates the wear extent of said utensil (2).
3. device according to claim 2 is characterized in that, also comprises: display unit (6), the wear extent of the said utensil (2) that is used to show that said processing unit (5) calculates.
4. device according to claim 2; It is characterized in that; Also comprise judging unit (7) and alarm unit (8), wherein, said judging unit (7) is used to judge that whether said strength of current is less than predetermined value; When said strength of current during, send alerting signal through said alarm unit (8) less than said predetermined value.
5. according to each described device in the claim 1 to 4, it is characterized in that,
Said resistance unit (1) is elongated, and the xsect uniformity of said resistance unit (1);
Said processing unit (5) comprises computing unit (51), and said computing unit (51) is according to following formula I
x* L=I * (L-L
x) calculate the wear extent L of said resistance unit
x, wherein, I is the initial current intensity of the said resistance unit (1) that under said level pressure loop, records, I
xBe the real-time current intensity of said resistance unit, L is the initial length of said resistance unit (1).
6. device according to claim 5 is characterized in that, said resistance unit (1) is concordant with the initial position of said utensil wear tip (21) near the initial position of an end of said utensil wear tip (21).
7. device according to claim 5 is characterized in that, said resistance unit (1) is a plurality of, and each said resistance unit (1) is parallel to the level pressure loop; Said a plurality of resistance unit (1) is provided with along the wrong successively back of the wear direction of said utensil (2), makes each said resistance unit corresponding to the different length section in the continuous length scope of said utensil (2).
8. device according to claim 1 is characterized in that, said utensil (2) is cutter or the cutterhead that is used for mounting cutter, and said resistance unit is embedded in said cutter or cutterhead.
9. device according to claim 8 is characterized in that, said cutter or cutterhead are the cutter or the cutterhead of shield machine.
10. a shield machine is characterized in that, is provided with the device of each described appliance wearing and tearing in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110286990 CN102445143B (en) | 2011-09-24 | 2011-09-24 | Device for detecting wear of apparatus and shield machine provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110286990 CN102445143B (en) | 2011-09-24 | 2011-09-24 | Device for detecting wear of apparatus and shield machine provided with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102445143A true CN102445143A (en) | 2012-05-09 |
| CN102445143B CN102445143B (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110286990 Expired - Fee Related CN102445143B (en) | 2011-09-24 | 2011-09-24 | Device for detecting wear of apparatus and shield machine provided with same |
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| Country | Link |
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| CN (1) | CN102445143B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466327A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Sensor for wear detection on shield machine cutter, device and cutter system |
| CN105466321A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Cutting tool wear detection method |
| CN105486216A (en) * | 2015-12-31 | 2016-04-13 | 中国铁建重工集团有限公司 | Shield-machine cutter wear detection device and shield-machine cutter system |
| CN109000551A (en) * | 2018-06-23 | 2018-12-14 | 中铁九局集团第四工程有限公司 | It is embedded in the synchronous abrasion distance measuring sensor of resistance-type and its application |
| CN109115098A (en) * | 2017-06-23 | 2019-01-01 | 英业达科技有限公司 | To detect the detection element of brake block abrasion loss |
| CN110095286A (en) * | 2019-04-18 | 2019-08-06 | 杭州电子科技大学 | A kind of test device and method that the friction of robot cup-and-ball joint is secondary |
| CN110356945A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | The wear sensing equipment and brake device for elevator of linear motion component |
| CN110986748A (en) * | 2019-12-30 | 2020-04-10 | 中铁隧道局集团有限公司 | Monitoring device for monitoring backward movement of cutter rest of shield hob |
| CN111678422A (en) * | 2019-03-11 | 2020-09-18 | 三菱重工业株式会社 | Wear sensor, wear sensor device, bearing, and method for installing bearing |
| CN113464655A (en) * | 2021-06-23 | 2021-10-01 | 西安交通大学 | Shield machine and main drive seal and method capable of detecting abrasion loss on line |
| CN115013320A (en) * | 2022-06-20 | 2022-09-06 | 广东鹏洋应急科技有限公司 | Automatic adjusting high-pressure water pump |
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| JP3858196B2 (en) * | 2002-11-26 | 2006-12-13 | 飛島建設株式会社 | Cutter wear detection sensor and detection device for shield machine |
| JP2008223311A (en) * | 2007-03-12 | 2008-09-25 | Ihi Corp | Abrasion detection device of cutter bit |
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| JP3247628B2 (en) * | 1997-02-07 | 2002-01-21 | 飛島建設株式会社 | Detector for cutter bit wear of shield machine |
| JP2004143693A (en) * | 2002-10-22 | 2004-05-20 | Shimizu Corp | Tail seal of shield machine and its wear and tear detection method |
| JP3858196B2 (en) * | 2002-11-26 | 2006-12-13 | 飛島建設株式会社 | Cutter wear detection sensor and detection device for shield machine |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466327A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Sensor for wear detection on shield machine cutter, device and cutter system |
| CN105466321A (en) * | 2015-12-31 | 2016-04-06 | 中国铁建重工集团有限公司 | Cutting tool wear detection method |
| CN105486216A (en) * | 2015-12-31 | 2016-04-13 | 中国铁建重工集团有限公司 | Shield-machine cutter wear detection device and shield-machine cutter system |
| CN105466321B (en) * | 2015-12-31 | 2018-05-04 | 中国铁建重工集团有限公司 | A kind of abrasion of cutting tool detection method |
| CN105486216B (en) * | 2015-12-31 | 2018-07-10 | 中国铁建重工集团有限公司 | A kind of shield machine cutter abrasion detection device and shield machine cutter system |
| CN109115098A (en) * | 2017-06-23 | 2019-01-01 | 英业达科技有限公司 | To detect the detection element of brake block abrasion loss |
| CN110356945A (en) * | 2018-03-26 | 2019-10-22 | 上海三菱电梯有限公司 | The wear sensing equipment and brake device for elevator of linear motion component |
| CN109000551A (en) * | 2018-06-23 | 2018-12-14 | 中铁九局集团第四工程有限公司 | It is embedded in the synchronous abrasion distance measuring sensor of resistance-type and its application |
| CN111678422A (en) * | 2019-03-11 | 2020-09-18 | 三菱重工业株式会社 | Wear sensor, wear sensor device, bearing, and method for installing bearing |
| CN111678422B (en) * | 2019-03-11 | 2022-03-11 | 三菱重工业株式会社 | Wear sensor, wear sensor device, bearing, and method for installing bearing |
| CN110095286A (en) * | 2019-04-18 | 2019-08-06 | 杭州电子科技大学 | A kind of test device and method that the friction of robot cup-and-ball joint is secondary |
| CN110986748A (en) * | 2019-12-30 | 2020-04-10 | 中铁隧道局集团有限公司 | Monitoring device for monitoring backward movement of cutter rest of shield hob |
| CN110986748B (en) * | 2019-12-30 | 2021-04-06 | 中铁隧道局集团有限公司 | Monitoring device for monitoring backward movement of cutter rest of shield hob |
| CN113464655A (en) * | 2021-06-23 | 2021-10-01 | 西安交通大学 | Shield machine and main drive seal and method capable of detecting abrasion loss on line |
| CN115013320A (en) * | 2022-06-20 | 2022-09-06 | 广东鹏洋应急科技有限公司 | Automatic adjusting high-pressure water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102445143B (en) | 2013-10-23 |
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