CN113653802A - Sealing ring capable of monitoring sealing abrasion loss on line and shield machine - Google Patents
Sealing ring capable of monitoring sealing abrasion loss on line and shield machine Download PDFInfo
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- CN113653802A CN113653802A CN202110941940.0A CN202110941940A CN113653802A CN 113653802 A CN113653802 A CN 113653802A CN 202110941940 A CN202110941940 A CN 202110941940A CN 113653802 A CN113653802 A CN 113653802A
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- 238000007789 sealing Methods 0.000 title claims abstract description 106
- 238000005299 abrasion Methods 0.000 title claims abstract description 37
- 238000012544 monitoring process Methods 0.000 title claims abstract description 37
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
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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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3296—Arrangements for monitoring the condition or operation of elastic sealings; Arrangements for control of elastic sealings, e.g. of their geometry or stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention provides a sealing ring capable of monitoring sealing abrasion loss on line and a shield tunneling machine, wherein the sealing ring capable of monitoring the sealing abrasion loss on line comprises a lip (901), a plurality of annular conductive wires are arranged in the lip (901), the central lines of the plurality of annular conductive wires are all overlapped with the central line (902) of the sealing ring, and the diameters of the corresponding rings of each annular conductive wire are different. The seal ring capable of monitoring the seal abrasion loss on line and the shield machine can monitor the abrasion loss of the main drive seal ring of the shield machine on line, judge the failure condition of a sealing system in advance, grasp the abrasion loss of the seal ring in time, discover the failure of the seal ring in time and process the seal ring in time, improve the safety of the main bearing sealing system of the shield machine and ensure that the shield machine tunnels safely and efficiently.
Description
Technical Field
The invention relates to the field of tunnel construction equipment, in particular to a sealing ring capable of monitoring the sealing abrasion loss on line and a shield machine.
Background
The shield machine main driving seal is known as an immune system of the shield machine and is one of the most important parts in a huge and complex system of the shield machine. The main function is to prevent the substances in the excavation bin such as sand, gravel, mud and water from entering the main bearing, and avoid the damage of the main bearing to cause the shield machine to be incapable of tunneling. The shield machine has very bad operation environment under complex multi-working condition, thus having high requirement on sealing performance.
At present, the main driving seal of the shield machine mainly adopts labyrinth + multi-channel lip rubber seal and labyrinth + polyurethane finger seal + VD seal structure forms, and the structures of the two are similar. Taking a labyrinth and a multi-channel lip rubber sealing structure as an example, in the working process, HBW grease is continuously injected into a sealing cavity formed by the labyrinth and the lip rubber, the multi-channel lip seal provides backpressure for lubricating oil EP2, the grease is formed into a ring shape through the labyrinth and continuously extruded out of an excavation bin at high pressure, and substances such as high-pressure slag soil in the excavation bin are prevented from entering the sealing cavity. The runway closely laminates through the infiltration of radial force at the grease with the sealing washer, and runway and the long-term relative rotation of sealing washer inevitably can appear wearing and tearing under the frictional force effect, appear a whole circle mar and recess on the runway for sealing washer and runway can not closely cooperate and lead to the lip compression volume to reduce, along with the continuous increase of sealing washer wearing and tearing volume, the leakproofness sharply reduces, inside silt gets into the bearing from the soil storehouse easily, finally arouses sealed inefficacy.
Because the sealing system plays a vital role in a complex shield machine system, the abrasion of the sealing ring has a great influence on the normal operation of the sealing system of the shield machine, the real-time monitoring of the abrasion condition of the sealing ring becomes an important index for predicting the sealing failure, and although the shield machine has been developed for decades, the abrasion loss of the main driving sealing ring of the shield machine cannot be monitored on line.
Disclosure of Invention
In order to monitor the abrasion loss of a main driving sealing ring of a shield machine on line in real time, the invention provides the sealing ring capable of monitoring the sealing abrasion loss on line and the shield machine, which can monitor the abrasion loss of the main driving sealing ring of the shield machine on line, pre-judge the failure condition of a sealing system, grasp the abrasion loss of the sealing ring in time, discover the failure of the sealing ring in time and process the sealing ring in time, improve the safety of the sealing system of a main bearing of the shield machine and ensure that the shield machine tunnels safely and efficiently.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a can online monitoring seal wearing and tearing volume's sealing washer, includes the lip, is equipped with many annular conductive filaments in the lip, the central line of many annular conductive filaments all coincides with the central line of sealing washer, every the annular diameter that annular conductive filament corresponds is all inequality.
And the diameters of a plurality of rings corresponding to the plurality of ring-shaped conductive wires are sequentially increased or decreased along the direction of the central line of the sealing ring.
And the plurality of annular conductive wires are sequentially arranged along the direction of the central line of the sealing ring.
The lip is internally provided with three annular conductive wires which are sequentially a first annular conductive wire, a second annular conductive wire and a third annular conductive wire along the direction of the central line of the sealing ring.
The lip comprises an inner circumferential surface, and the distances from the first annular conductive wire, the second annular conductive wire and the third annular conductive wire to the inner circumferential surface are sequentially increased.
The sealing ring capable of monitoring the sealing abrasion loss on line further comprises an outer supporting seat and a plurality of wires, wherein the annular conductive wires are connected with the wires in a one-to-one correspondence mode, and the plurality of wires are connected in parallel.
Each lead passes through the peripheral surface of the outer support seat.
In one annular conductive wire, the annular conductive wire comprises conductive wire rings and conductive inner convex points, the conductive inner convex points are uniformly arranged along the axial direction of the conductive wire rings, the conductive inner convex points extend towards the circle center of the conductive wire rings, and the length of each conductive inner convex point is 1% -5% of the diameter of the corresponding annular conductive wire ring.
The sealing ring capable of monitoring the sealing abrasion loss on line further comprises a power supply, an alarm and a switch group which are connected in sequence, the switch group comprises a plurality of control switches which are connected in parallel, and the annular conductive wires are connected with the control switches in a one-to-one correspondence mode through wires.
The utility model provides a shield constructs machine, shield constructs machine includes runway and the sealing washer that the endotheca was established, the sealing washer is foretell sealing washer that can the on-line monitoring sealed wearing and tearing volume.
The invention has the beneficial effects that: the wear loss of the main driving sealing ring of the shield machine can be monitored on line, the failure condition of the sealing system is judged in advance, the wear loss of the sealing ring can be mastered in time, the failure of the sealing ring is found in time, the sealing ring is processed in time, the safety of the main bearing sealing system of the shield machine is improved, and the shield machine is guaranteed to be tunneled safely and efficiently.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic view of the working state of the seal ring capable of monitoring the seal wear amount on line in embodiment 1.
Fig. 2 is an enlarged schematic view of the lip portion of fig. 1.
Fig. 3 is a schematic view of the structure of the annular conductive yarn in embodiment 1.
Fig. 4 is a schematic diagram of the connection of the annular conductive wire, the lead wire and the control switch.
Fig. 5 is a schematic view of the working state of the seal ring capable of monitoring the seal wear amount on line in embodiment 2.
1. A first annular conductive filament; 2. a second annular conductive filament; 3. a third annular conductive filament; 4. a first control switch; 5. a second control switch; 6. a third control switch; 7. an alarm; 8. a power source; 9. the sealing ring can monitor the sealing abrasion loss on line; 10. a runway; 11. a wire;
901. a lip; 902. the center line of the seal ring; 903. an inner peripheral surface; 904. an outer peripheral surface; 905. an outer support base;
1201. a conductive wire loop; 1202. conductive inner convex tips.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
A sealing ring capable of monitoring sealing abrasion loss on line comprises a lip 901, wherein a plurality of annular conductive wires are arranged in the lip 901, the annular conductive wires and the sealing ring are in a concentric circle relationship, the annular conductive wires are connected in parallel, the central lines (straight lines) of the annular conductive wires are coincident with the central line 902 (straight line) of the sealing ring, the diameters of the corresponding rings of each annular conductive wire are different, and the annular conductive wires are not in contact with each other, as shown in figure 1.
In the present embodiment, the diameters of the plurality of loops corresponding to the plurality of conductive wires sequentially increase or decrease in the front-rear direction of the center line 902 of the sealing ring, i.e., the direction from left to right in fig. 1. The plurality of annular conductive wires are arranged in sequence along the direction of the center line 902 of the sealing ring, as shown in fig. 1 and 2.
In this embodiment, three annular conductive wires are arranged in the lip 901, and the three annular conductive wires are a first annular conductive wire 1, a second annular conductive wire 2 and a third annular conductive wire 3 in sequence along the front-back direction of the center line 902 of the sealing ring.
In the present embodiment, the lip 901 has an inner circumferential surface 903, and the distances from the first annular conductive filament 1, the second annular conductive filament 2, and the third annular conductive filament 3 to the inner circumferential surface 903 increase in this order. For example, the distances from the first annular conductive filament 1, the second annular conductive filament 2 and the third annular conductive filament 3 to the inner peripheral surface 903 are L1, L2 and L3, respectively (0.5mm < L1 ≦ 1.5mm, 2.0mm < L2 ≦ 2.5mm, 2.5mm < L3 ≦ 3.0 mm).
In this embodiment, the sealing ring capable of monitoring the amount of sealing wear on line further includes an outer support base 905 and a plurality of wires 11, the annular conductive wires are connected with the wires 11 in a one-to-one correspondence manner, and the plurality of wires 11 are connected in parallel. The outer support base 905 and the lip 901 are an integrated connecting structure, and each wire 11 passes through the outer peripheral surface 904 of the outer support base. It can be understood that the invention point of the sealing ring capable of monitoring the sealing abrasion amount on line is that a plurality of annular conductive wires and conducting wires 11 are added on the existing sealing ring.
In one annular conductive wire, the annular conductive wire includes a conductive wire ring 1201 and conductive inner convex points 1202, the conductive wire ring 1201 and the conductive inner convex points 1202 are connected into a whole, the conductive inner convex points 1202 are uniformly arranged along the axial direction of the conductive wire ring 1201, the conductive inner convex points 1202 extend along the diameter direction of the ring corresponding to the conductive wire ring 1201, the conductive inner convex points 1202 extend towards the center of the circle of the conductive wire ring 1201, and the length of the conductive inner convex points 1202 is 1% -5% of the diameter of the ring corresponding to the conductive wire ring 1201, as shown in fig. 3.
The sealing ring capable of monitoring the sealing abrasion loss on line further comprises a power supply 8, an alarm 7 and a switch group which are connected in sequence, the switch group comprises a plurality of control switches which are connected in parallel, and the annular conductive wires are connected with the control switches in a one-to-one correspondence mode through wires 11.
A shield machine is introduced below, the shield machine includes an inner and outer race 10 and a seal ring, the seal ring is the seal ring 9 capable of monitoring the seal wear amount on line, and a power supply 8 is electrically connected to the race 10 through a conductive wire, as shown in fig. 1 and 4.
The plurality of annular conductive wires are connected in parallel, the plurality of wires 11 are connected in parallel, and the plurality of control switches are connected in parallel. The annular conductive wire is made of solid metal and has relatively low resistance, when the annular conductive wire at the lip 901 is in contact with the runway 10 to form a closed loop, the annular conductive wire can rapidly transmit current to cause the alarm 7 to give an alarm, and in order to prevent the runway 10 from being abraded due to mutual friction between the annular conductive wire and the runway 10, the adopted annular conductive wire has general wear resistance and is broken within a few minutes of friction between the annular conductive wire and the runway 10 at a low rotating speed.
The conductive inner convex tip 1202 is arranged to generate weak current with the runway 10 to trigger the alarm 7 to generate weak electrical signals, the current generated by the reduction of the distance between the conductive inner convex tip 1202 and the runway gradually increases to trigger the electrical signals to be gradually strengthened, a closed loop is formed when the annular conductive wire at the lip 901 is in contact with the runway 10, and the alarm 7 is triggered to give an alarm by transmitting large current.
For example, three annular conductive wires are arranged in a sealing ring 9 capable of monitoring the sealing abrasion loss on line, the switch group comprises three control switches, a first annular conductive wire 1 is connected with one end of a first control switch 4 through a first lead, a second annular conductive wire 2 is connected with one end of a second control switch 5 through a second lead, a third annular conductive wire 3 is connected with one end of a third control switch 6 through a third lead, and the other end of the first control switch 4, the other end of the second control switch 5 and the other end of the third control switch 6 are all connected with an interface of an alarm 7.
The switch group has the advantages that the control and protection functions are integrated, compared with a protection system formed by a molded case circuit breaker, the switch group has the characteristic that the protection setting current can be adjusted, the current can be adjusted on a panel, and the switch group has the characteristics of long service life and convenience in operation.
The alarm 7 can capture weak current generated by the annular conductive wire to form an electric signal, the electric signal is gradually strengthened along with the increase of the current, once the annular conductive wire at the lip is contacted with the runway to form a closed loop, the alarm sound is quickly and sensitively sent out, and in order to ensure the detection of related workers, the alarm is still kept after the annular conductive wire is broken until the alarm is turned off, and the alarm and early warning sound is stopped.
The material of the sealing ring 9 capable of monitoring the sealing abrasion loss on line is a rubber material with good backpressure performance, three annular conductive wires are uniformly embedded and distributed at the lip 901 part, the sealing ring 9 capable of monitoring the sealing abrasion loss on line is in contact with the runway 10 to be matched with large interference, and good sealing can be achieved. However, the number of the annular conductive wires is not limited to 3, and the number of the annular conductive wires is increased or decreased according to the actual detection requirement of the sealing ring.
The sealing ring capable of monitoring the sealing abrasion loss on line, the main drive of the shield machine and the working process of the shield machine are described below.
With the normal operation of the shield tunneling machine, the runway 10 rotates by taking the center line 902 of the sealing ring as an axis, the sealing ring 9 capable of monitoring the sealing abrasion amount on line rubs with the runway 10 to cause the abrasion of the lip 901, when the abrasion amount at the lip 901 reaches the position of the first annular conductive wire 1, the first annular conductive wire 1 is exposed and contacts with the runway 10 to form a closed loop, so that the alarm of the alarm 7 is caused, the shutdown maintenance sealing system finds no abnormity, the alarm 7 is closed, and the shield tunneling machine continues to operate.
When the abrasion loss at the lip 901 reaches the position of the second annular conductive wire 2, the second annular conductive wire 2 is exposed and contacts with the runway 10 to form a closed loop, so that the alarm 7 is triggered to give an alarm, the shutdown maintenance sealing system finds no abnormality, the alarm 7 is closed, and the shield tunneling machine continues to operate.
When the abrasion loss at the lip 901 reaches the position of the third annular conductive wire 3, the third annular conductive wire 3 is exposed and contacts with the runway 10 to form a closed loop, so that the alarm 7 is triggered, the sealing system is overhauled, and the sealing ring 9 capable of monitoring the sealing abrasion loss on line is replaced.
Therefore, the abrasion loss of the sealing ring can be timely mastered, the failure prejudgment of the sealing ring is obviously improved, and the sealing ring is reasonably replaced, so that the online monitoring and alarming of the abrasion of the main driving sealing ring of the shield tunneling machine are realized, the substances in an excavation bin are prevented from entering the main bearing, the safety of a main bearing system of the shield tunneling machine is improved, and the shield tunneling machine is guaranteed to safely and efficiently tunnel.
Example 2
The embodiment is a change to embodiment 1, and the main difference between this embodiment and embodiment 1 is that the alarm 7 includes a plurality of signal access ports, a plurality of control switches are connected to the plurality of signal access ports in a one-to-one correspondence, and when each signal access port receives an input signal, the alarm 7 generates different alarm actions, so that the wear condition of the seal ring 9 capable of monitoring the seal wear amount on line can be determined according to different responses of the alarm 7, as shown in fig. 5.
For example, the other end of the first control switch 4 is connected to a first signal input port of the alarm device 7, the other end of the second control switch 5 is connected to a second signal input port of the alarm device 7, and the other end of the third control switch 6 is connected to a third signal input port of the alarm device 7.
When the abrasion loss of the lip 901 reaches the position of the first annular conductive wire 1, the alarm 7 lights a blue lamp, when the abrasion loss of the lip 901 reaches the position of the second annular conductive wire 2, the alarm 7 lights a yellow lamp, and when the abrasion loss of the lip 901 reaches the position of the third annular conductive wire 3, the alarm 7 lights a red lamp.
Other technical features in this embodiment are the same as those in embodiment 1, and this embodiment will not be described in detail for the sake of brevity.
The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features and the technical schemes, and the technical schemes can be freely combined and used.
Claims (10)
1. The utility model provides a can online monitoring seal wearing and tearing volume's sealing washer which characterized in that, can online monitoring seal wearing and tearing volume's sealing washer includes lip (901), is equipped with many annular conductive silks in lip (901), the central line of many annular conductive silks all coincides with central line (902) of sealing washer, every the annular diameter that annular conductive silk corresponds is all inequality.
2. The seal ring capable of monitoring the seal wear amount online according to claim 1, wherein the diameters of the plurality of corresponding annular conductive wires are sequentially increased or decreased along the direction of the center line (902) of the seal ring.
3. The seal ring capable of monitoring the seal wear online according to claim 1, wherein the plurality of annular conductive wires are arranged in sequence along a direction of a center line (902) of the seal ring.
4. The sealing ring capable of monitoring the seal wear amount online according to claim 1, wherein three annular conductive wires are arranged in the lip (901), and the three annular conductive wires are a first annular conductive wire (1), a second annular conductive wire (2) and a third annular conductive wire (3) in sequence along the direction of the center line (902) of the sealing ring.
5. A sealing ring capable of monitoring the seal wear amount online according to claim 4, characterized in that the lip (901) comprises an inner circumferential surface (903), and the distances from the first annular conductive wire (1), the second annular conductive wire (2) and the third annular conductive wire (3) to the inner circumferential surface (903) are increased in sequence.
6. The sealing ring capable of monitoring the sealing wear amount online according to claim 1, further comprising an outer support seat (905) and a plurality of wires (11), wherein the annular conductive wires are connected with the wires (11) in a one-to-one correspondence manner, and the plurality of wires (11) are connected in parallel.
7. A seal ring capable of on-line monitoring of seal wear according to claim 1, characterized in that each wire (11) passes through the outer peripheral surface (904) of the outer support.
8. A seal ring capable of monitoring seal wear online according to claim 1, wherein in one of the annular conductive wires, the annular conductive wire comprises a conductive wire ring (1201) and conductive inner convex tips (1202), the conductive inner convex tips (1202) are uniformly arranged along the axial direction of the conductive wire ring (1201), the conductive inner convex tips (1202) extend towards the center of the conductive wire ring (1201), and the length of the conductive inner convex tips (1202) is 1% -5% of the diameter of the corresponding ring of the conductive wire ring (1201).
9. The sealing ring capable of monitoring the sealing wear amount on line according to claim 1, further comprising a power supply (8), an alarm (7) and a switch group which are connected in sequence, wherein the switch group comprises a plurality of control switches which are arranged in parallel, and the annular conductive wires are connected with the control switches in a one-to-one correspondence manner through leads (11).
10. A shield machine is characterized in that the shield machine comprises an inner sleeve and an outer sleeve which are respectively provided with a runway (10) and a sealing ring, and the sealing ring is the sealing ring (9) which can monitor the sealing abrasion loss on line according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110941940.0A CN113653802A (en) | 2021-08-17 | 2021-08-17 | Sealing ring capable of monitoring sealing abrasion loss on line and shield machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110941940.0A CN113653802A (en) | 2021-08-17 | 2021-08-17 | Sealing ring capable of monitoring sealing abrasion loss on line and shield machine |
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| CN113653802A true CN113653802A (en) | 2021-11-16 |
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| CN202110941940.0A Pending CN113653802A (en) | 2021-08-17 | 2021-08-17 | Sealing ring capable of monitoring sealing abrasion loss on line and shield machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352516A (en) * | 2021-12-02 | 2022-04-15 | 中联重科股份有限公司 | Piston sealing ring, piston and concrete pumping device |
| CN114812366A (en) * | 2022-04-25 | 2022-07-29 | 中铁工程装备集团有限公司 | Method and device for detecting abrasion of lip-shaped sealing ring of shield machine and shield machine |
| CN114858045A (en) * | 2022-04-25 | 2022-08-05 | 中铁工程装备集团有限公司 | Method and device for detecting abrasion of lip-shaped ring of shield machine and shield machine |
| CN114858044A (en) * | 2022-04-25 | 2022-08-05 | 中铁工程装备集团有限公司 | Shield tunneling machine rubber ring abrasion detection method and shield tunneling machine rubber ring |
| WO2023150913A1 (en) * | 2022-02-08 | 2023-08-17 | 舍弗勒技术股份两合公司 | Sealing device |
| CN114812366B (en) * | 2022-04-25 | 2024-06-28 | 中铁工程装备集团有限公司 | Shield machine lip seal ring abrasion detection method and device and shield machine |
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| CN114352516A (en) * | 2021-12-02 | 2022-04-15 | 中联重科股份有限公司 | Piston sealing ring, piston and concrete pumping device |
| WO2023150913A1 (en) * | 2022-02-08 | 2023-08-17 | 舍弗勒技术股份两合公司 | Sealing device |
| CN114812366A (en) * | 2022-04-25 | 2022-07-29 | 中铁工程装备集团有限公司 | Method and device for detecting abrasion of lip-shaped sealing ring of shield machine and shield machine |
| CN114858045A (en) * | 2022-04-25 | 2022-08-05 | 中铁工程装备集团有限公司 | Method and device for detecting abrasion of lip-shaped ring of shield machine and shield machine |
| CN114858044A (en) * | 2022-04-25 | 2022-08-05 | 中铁工程装备集团有限公司 | Shield tunneling machine rubber ring abrasion detection method and shield tunneling machine rubber ring |
| CN114812366B (en) * | 2022-04-25 | 2024-06-28 | 中铁工程装备集团有限公司 | Shield machine lip seal ring abrasion detection method and device and shield machine |
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