CN220018868U - Quick detection device for broken shaft of shield screw machine - Google Patents
Quick detection device for broken shaft of shield screw machine Download PDFInfo
- Publication number
- CN220018868U CN220018868U CN202321515256.7U CN202321515256U CN220018868U CN 220018868 U CN220018868 U CN 220018868U CN 202321515256 U CN202321515256 U CN 202321515256U CN 220018868 U CN220018868 U CN 220018868U
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- screw
- shaft
- detection device
- shield
- broken
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- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000007789 sealing Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model provides a rapid detection device for a broken shaft of a shield screw, which is applied to the technical field of broken shafts of shield screws, and comprises a screw shaft, wherein an axle center cavity is cut in the screw shaft, a fluid pipeline extending out of the axle center cavity is connected in the axle center cavity, and a pressurizing device and a sealing pressure testing device are fixedly connected on the fluid pipeline.
Description
Technical Field
The utility model relates to the technical field of shield screw machine broken shaft, in particular to a rapid shield screw machine broken shaft detection device.
Background
The screw conveyor is an important core component for tunneling construction of the earth pressure balance shield machine. In long-distance tunnel tunneling, the cutterhead conveys the dregs cut into the soil bin to the belt through the screw conveyor, the amount of the soil is adjusted by controlling the rotating speed of the screw machine and the opening of the soil outlet, the effect of maintaining the balance of the soil pressure is achieved,
the existing judgment screw machine is complicated in broken shaft working condition, the observation hole is required to be opened manually for visual inspection, as shield construction is under-pressure operation, the phenomenon of mud and sand burst caused by opening the observation hole can cause large-area collapse of the ground, the danger is high, the screw conveyor possibly encounters hard foreign matters which cannot be detected in advance in geological exploration during operation, foreign matters are blocked between rotating blades and a static shell, the broken shaft phenomenon is caused, driving torque cannot be transmitted after the broken shaft is caused, soil in a soil bin cannot be transported outwards, and the shield machine has to be stopped.
Therefore, the method for solving the problem that the screw conveyor of the shield machine cannot judge the broken shaft during construction is provided, and the structural integrity of the screw conveyor shaft can be rapidly detected.
Disclosure of Invention
Compared with the prior art, the quick detection device for the broken shaft of the shield screw machine provided by the utility model has the advantages that the shaft center cavity is cut in the screw shaft, the fluid pipeline extending out of the shaft center cavity is connected in the shaft center cavity, the pressurizing equipment and the sealing pressure testing equipment are fixedly connected on the fluid pipeline, the pressurizing equipment comprises a pressure gauge fixedly connected with the fluid pipeline, the sealing pressure testing equipment comprises a one-way valve connected with the pressure gauge, the right side of the one-way valve is fixedly connected with a main path stop valve, and the main path stop valve is respectively connected with a gas path stop valve and a waterway stop valve;
when the earth pressure balance shield is constructed, whether the screw machine is broken or not needs to be judged, the shaft center cavity is arranged during production of the screw conveyor shaft, the pressurizing pipe and the seal are connected with the shaft center cavity in the screw shaft, at the moment, when the screw conveyor shaft is detected, the shaft breakage detection of the screw conveyor is effectively achieved through the gas circuit or the water circuit system, screw conveyor components are not required to be removed, only a small cavity is arranged in the screw conveyor shaft, water or gas with certain pressure is injected, the pressure gauge is used for monitoring the pressure change condition, and the effect of detecting whether the screw machine is broken or not can be achieved rapidly.
Further, a conveying pipeline with a feed opening and a feed opening is sleeved outside the screw shaft.
Furthermore, the axle center cavity is driven into the interior through supercharging equipment with water or gas, through setting up supercharging equipment, is convenient for when the screw axis fracture, and water or gas that has pressure can be released rapidly, judges through the change of manometer that screw conveyer shaft structure exists the broken axle phenomenon.
Further, the screw shaft can be detected through an air path or a water path system.
Further, water or gas with a certain pressure is injected into the pressure sensor, and the pressure change is monitored by using a pressure gauge.
Further, the output end of the screw shaft is connected in the screw conveyor.
Compared with the prior art, the utility model has the advantages that:
(1) This scheme can be realized, when needs judge when the screw machine is broken when earth pressure balance shield constructs the construction, the accessible sets up the axle center cavity when screw conveyer shaft production, the installation is connected with the axle center cavity in the screw shaft to booster pipe and seal, at this moment, when detecting the screw machine shaft, can detect through gas circuit or waterway system, reach effectively and compare conventional screw conveyer broken shaft detection, need not to demolish screw conveyer part, only need set up a little cavity in the screw conveyer shaft, pour into water or the gaseous of certain pressure into, utilize the change condition of manometer monitoring pressure, can reach the effect of detecting whether screw machine broken shaft fast.
(2) And judging whether the shaft structure of the screw conveyor has a shaft breakage phenomenon or not through the change of the pressure gauge.
Drawings
FIG. 1 is a side view of a screw conveyor according to the present utility model;
FIG. 2 is a schematic diagram of a screw axis breakage detection system according to the present utility model;
fig. 3 is an enlarged view of a part of the screw shaft of the present utility model.
The reference numerals in the figures illustrate:
1. a screw shaft; 2. an axial cavity; 3. a fluid line; 4. a pressure gauge; 5. a one-way valve; 6. a main-way stop valve; 7. a gas path stop valve; 8. a waterway stop valve; 9. a delivery conduit; 10. a discharge port; 11. and a feed inlet.
Detailed Description
The embodiments will be described in detail and by reference to the drawings, wherein the technical solutions of the present utility model are clearly and completely described, and all other embodiments obtained by those skilled in the art without making any inventive effort are included in the scope of the present utility model.
Example 1:
the utility model provides a rapid detection device for a broken shaft of a shield screw machine, referring to fig. 1-3, which comprises a screw shaft 1, wherein an axle center cavity 2 is cut in the screw shaft 1, a fluid pipeline 3 extending out of the axle center cavity 2 is connected in the axle center cavity 2, a pressurizing device and a sealing pressure test device are fixedly connected on the fluid pipeline 3, the pressurizing device comprises a pressure gauge 4 fixedly connected on the fluid pipeline 3, the sealing pressure test device comprises a one-way valve 5 connected with the pressure gauge 4, a main path stop valve 6 is fixedly connected to the right side of the one-way valve 5, and the main path stop valve 6 is respectively connected with a gas path stop valve 7 and a waterway stop valve 8.
This scheme can be realized, when needs judge when the screw machine is broken the axle in the earth pressure balance shield construction, the accessible sets up axle center cavity 2 when screw conveyer axle production, and the installation is connected with the axle center cavity 2 in the screw axle 1 to booster pipe and seal, at this moment, when detecting the screw axle, can detect through gas circuit or waterway system, detects when adopting the gas circuit:
step one: closing the waterway stop valve 8, and opening the air channel stop valve 7 and the main channel stop valve 6;
step two: opening a compressed air system, enabling gas to enter the axle center cavity 2 through the one-way valve 5, pressurizing for a period of time, and closing the main path stop valve 6;
step three: observing the change of the reading of the pressure 4 meter after a certain time; if the pressure is unchanged, the screw shaft is normal, and if the pressure gauge is not pressurized or depressurized, the screw shaft 1 is broken or damaged.
When adopting the water route to detect the screw spindle:
step one: closing the air passage 3-5 stop valve, and opening the 3-4 waterway stop valve and the 3-3 main passage stop valve;
step two: opening the water system, enabling water to enter the cavity of the 2 spiral shaft center through the one-way valve of the 3-2, pressurizing for a period of time, and closing the 3-3 stop valve;
step three: observing the change of the reading of the 3-1 pressure gauge after a certain time; if the pressure is unchanged, the screw shaft is normal, and if the pressure gauge is not pressurized or depressurized, the screw shaft is broken or damaged.
Compared with the conventional screw conveyor broken shaft detection, the screw conveyor broken shaft detection device has the advantages that screw conveyor parts do not need to be removed, only a small cavity is arranged in the screw conveyor shaft, water or gas with certain pressure is injected, the pressure gauge is used for monitoring the pressure change condition, the effect of detecting whether the screw conveyor broken shaft is achieved rapidly, the integrity of the screw conveyor shaft can be guaranteed, and the screw conveyor broken shaft detection device has the advantages of being simple in structure, rapid in response, convenient to operate, accurate in judgment, safe, reliable and the like.
The foregoing is merely illustrative of the best modes of carrying out the utility model in connection with the actual requirements, and the scope of the utility model is not limited thereto.
Claims (6)
1. The utility model provides a shield constructs quick detection device of spiral shell machine broken axle, includes screw axis (1), its characterized in that, the cutting has axle center cavity (2) in screw axis (1), the fluid pipeline (3) that extend to outside axle center cavity (2) are connected with in axle center cavity (2), fixedly connected with booster unit, leakproofness pressure testing equipment on fluid pipeline (3), booster unit is including manometer (4) of fixedly connected with fluid pipeline (3), leakproofness pressure testing equipment is including check valve (5) that are connected with manometer (4), check valve (5) right side fixedly connected with main way stop valve (6), main way stop valve (6) are connected with gas circuit stop valve (7), water route stop valve (8) respectively.
2. The rapid detection device for the broken shaft of the shield screw machine according to claim 1, wherein the screw shaft (1) is sleeved with a conveying pipeline (9) with a feed opening (10) and a feed opening (11).
3. The rapid detection device for the broken shaft of the shield screw according to claim 1, wherein the shaft center cavity (2) is filled with water or gas through pressurizing equipment.
4. The rapid detection device for the broken shaft of the shield screw machine according to claim 1, wherein the screw shaft (1) can be detected through a gas circuit or a water circuit system.
5. The rapid detection device for the broken shaft of the shield screw machine according to claim 1, wherein water or gas with a certain pressure is injected into the shield screw machine (2), and the pressure change condition is monitored by using a pressure gauge (4).
6. The rapid detection device for the broken shaft of the shield screw machine according to claim 1, wherein the output end of the screw shaft (1) is connected into the screw conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321515256.7U CN220018868U (en) | 2023-06-14 | 2023-06-14 | Quick detection device for broken shaft of shield screw machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321515256.7U CN220018868U (en) | 2023-06-14 | 2023-06-14 | Quick detection device for broken shaft of shield screw machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220018868U true CN220018868U (en) | 2023-11-14 |
Family
ID=88673334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321515256.7U Active CN220018868U (en) | 2023-06-14 | 2023-06-14 | Quick detection device for broken shaft of shield screw machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220018868U (en) |
-
2023
- 2023-06-14 CN CN202321515256.7U patent/CN220018868U/en active Active
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