CN213239810U - Detection system for abrasion resistance of shield cutter head - Google Patents
Detection system for abrasion resistance of shield cutter head Download PDFInfo
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- CN213239810U CN213239810U CN202021868645.4U CN202021868645U CN213239810U CN 213239810 U CN213239810 U CN 213239810U CN 202021868645 U CN202021868645 U CN 202021868645U CN 213239810 U CN213239810 U CN 213239810U
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- test box
- blade disc
- abrasion resistance
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Abstract
The utility model relates to a detection system of shield structure blade disc wearability, the utility model discloses a motor control blade disc rotates, can adjust the configuration mode of blade disc in real time, pitch angle precession speed and precession duration, the test box intussuseption is filled with experimental soil, can adjust the kind of control soil, particle hardness and mineral composition, through atmospheric pressure pipeline and the supply channel that sets up, can adjust soil pressure and moisture condition, thereby influence to the blade disc wearing and tearing under the different conditions of simulation, this device has the miniaturization, can launch the experiment in advance indoors, foresee the principal factor of local blade disc wearing and tearing, whole system processing, installation, maintenance, convenience simple to use. The utility model discloses avoided the measured risk of site operation, avoided the economic loss that the wearing and tearing of on-the-spot blade disc brought, consequently had good economic value and practical value.
Description
Technical Field
The utility model belongs to the technical field of the tunnel construction, concretely relates to detection system of shield structure blade disc wearability.
Background
Along with the acceleration of the urbanization process of China, city construction is rapidly developed, the scale of cities is continuously increased, the population of the cities is rapidly expanded, the shortage of land, the crowding of living space and traffic jam appear in many cities in different degrees, more and more cities start to construct city subways, and the shield construction technology is more and more widely applied to the construction of city subway tunnels. For a general uniform stratum, the types of a shield and a cutter head cutter can be determined according to the self-supporting performance of an excavation surface, soil conditions and underground water level, but the breadth of China is vast, the geological conditions of various regions change into various degrees, and rocks, sand gravel, sand soil, silty sand soil, silt clay and the like with different hardness and bedding structures exist. The adaptability of the existing shield machine and the geological conditions of the section needing to be tunneled, the adaptability of the shield machine cutter and the soil body, the cutter abrasion problem and the adaptability of the cutter head and cutter combination configuration and the geological conditions in China have already seriously influenced the development of the shield machine design and construction technology in China, and particularly the problem of the abrasion of the shield cutter is serious. Known factors causing tool wear are mainly: cutter configuration, pitch angle of the propeller, soil type, particle hardness, mineral composition, precession speed, precession duration, soil pressure, moisture conditions, cutter relative hardness, and the like.
At present, the abrasion rule of the cutter is not completely mastered by people, and the tracking detection level of the cutter is not enough. Otherwise, the load of the adjacent tool is increased, the abrasion rate of the rest tool is accelerated, and a vicious circle is formed. When the shield construction is used for opening the warehouse, repairing and replacing the cutter, the cost and the time are huge, and accidents such as surface subsidence and the like are easily caused, so the service life of the cutter must be prolonged as much as possible, and the warehouse opening times are reduced. The cutter is difficult to replace, the cost is high, the goods feeding period is long, the quality of the whole project is influenced, and the construction period is prolonged. Therefore, the abrasion of the shield cutter is a problem to be solved urgently which influences the shield construction.
Disclosure of Invention
An object of the utility model is to overcome the aforesaid not enough, provide a detection system of shield structure blade disc wearability, can convenient and fast ground carry out quantitative analysis to blade disc wearing and tearing influence factor indoor to predict the factor that influences blade disc wearing and tearing in advance.
In order to achieve the purpose, the utility model discloses a test box, the test box intussuseption is filled with experimental soil that uses, and the test box is provided with the motor outward, and the motor passes through the transfer line and connects the blade disc, and in the experimental soil that uses in the test box was arranged in to the blade disc, experimental soil connection soil pressure sensor that uses, atmospheric pressure pipeline and supply channel are connected to the test box.
A pressure control valve is arranged on the pneumatic pipeline.
A water supply control valve and a flowmeter are arranged on the water supply pipeline.
The motor is fixed in the backup pad, and the backup pad passes through hydraulic jack to be fixed in test box one side.
The motor is fixed on the supporting plate through the supporting rod.
The end face of the test box is sealed through a side cover of the test box, and a high-pressure sealing plug is arranged between the test box and the side cover of the test box.
And the test box is fixed on the test box through screws and rotating nuts.
Compared with the prior art, the utility model discloses a motor control blade disc rotates, can adjust the configuration mode of blade disc in real time, pitch angle precession speed and precession duration, the test box intussuseption is filled with experimental soil, can adjust the kind of control soil, particle hardness and mineral composition, through atmospheric pressure pipeline and the supply channel that sets up, can adjust soil pressure and moisture condition, thereby the influence to the blade disc wearing and tearing under the different conditions of simulation, this device has the miniaturization, can launch in advance at indoor experimental, foresee the principal factor of local blade disc wearing and tearing, whole system processing, installation, maintenance, convenience simple to use. The utility model discloses avoided the measured risk of site operation, avoided the economic loss that the wearing and tearing of on-the-spot blade disc brought, consequently had good economic value and practical value.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a side cover of the present invention;
the test device comprises a transmission rod 1, a cutter head 2, a pressure control valve 3, a water supply control valve 4, a soil pressure sensor 5, a flowmeter 6, a rotary nut 7, a test box 8, a high-pressure sealing plug 9, a test box side cover 10, a screw 11, a hydraulic jack 12, a motor 13, a support rod 14 and a support plate 15.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 and 2, the utility model discloses a test box 8, 8 intussuseptions of test box are filled with experimental soil that uses, and test box 8 is provided with motor 13 outward, and motor 13 passes through transfer line 1 and connects blade disc 2, and blade disc 2 is arranged in the experimental soil that uses in test box 8 in, and the soil is connected with soil for the experiment and is pressed sensor 5, and test box 8 connects atmospheric pressure pipeline and supply channel. A pressure control valve 3 is arranged on the pneumatic pipeline. A water supply control valve 4 and a flow meter 6 are provided on the water supply line. The motor 13 is fixed on a support plate 15 through a support rod 14, and the support plate 15 is fixed on one side of the test box 8 through a hydraulic jack 12. The end face of the test box 8 is sealed by a test box side cover 10, and a high-pressure sealing modified sealing plug 9 is arranged between the test box 8 and the test box side cover 10. Is fixed on the test box 8 by a screw 11 and a rotating nut 7.
When the test device is used, test soil is placed in the test box 1, and the mass of the cutter head 2 is measured to be M before the test begins1Then, a cutter head 2 is installed on the transmission rod 1, a side cover 11 of the test box is arranged on the test box 1, the test box is sealed by using a rotary nut 7 and a screw 11, a water supply control valve 4 is opened, water is supplied to a test soil body through a water supply pipe, a flowmeter 6 is observed, the water supply control valve 4 is closed when moisture meets test requirements, a pressure control valve 3 is opened, an external compressor is used for pressurizing the test box 1, a soil pressure sensor 5 is observed, the pressure control valve 3 is closed when soil pressure meets the test requirements, an external motor is opened to enable the transmission rod to rotate so as to drive the cutter head to rotate, a jack 12 is operated to further push the cutter head to advance, the external motor is stopped after the cutter head 2 rotates for a certain time, the top cover 11 of the test box is opened, the cutter head 2 is taken out, after the soil2Further obtain the wear rate of the cutter head
Wherein, the relative hardness and spiral angle of the cutter head 2, the soil type, the particle hardness, the mineral composition, the propelling speed of the jack, the propelling pressure, the rotating speed of the motor, the rotating duration, the soil pressure, the moisture condition and the like are all control variables, one variable can be singly changed, other variables are controlled to be unchanged, and then the influence degree of different factors on the cutter head abrasion is obtained.
Claims (7)
1. The utility model provides a detection system of shield structure blade disc abrasion resistance, a serial communication port, including test box (8), test box (8) intussuseption is filled with experimental soil of using, is provided with motor (13) outside test box (8), and blade disc (2) are connected through transfer line (1) in motor (13), and in experimental soil of using in test box (8) was arranged in to blade disc (2), experimental soil connection soil pressure sensor (5) of using, atmospheric pressure pipeline and water supply pipe are connected in test box (8).
2. The system for detecting the abrasion resistance of the shield cutterhead according to claim 1, wherein a pressure control valve (3) is arranged on the pneumatic pipeline.
3. The system for detecting the abrasion resistance of the shield cutter head according to claim 1, wherein a water supply control valve (4) and a flow meter (6) are arranged on a water supply pipeline.
4. The system for detecting the abrasion resistance of the shield cutterhead according to claim 1, wherein the motor (13) is fixed on a support plate (15), and the support plate (15) is fixed on one side of the test box (8) through a hydraulic jack (12).
5. The system for detecting the abrasion resistance of the shield cutterhead according to claim 4, wherein the motor (13) is fixed on the supporting plate (15) through a supporting rod (14).
6. The system for detecting the abrasion resistance of the shield cutter head according to claim 1, wherein the end face of the test box (8) is sealed by a test box side cover (10), and a high-pressure sealing plug (9) is arranged between the test box (8) and the test box side cover (10).
7. The system for detecting the abrasion resistance of the shield cutterhead according to claim 6, wherein the test box side cover (10) is fixed on the test box (8) through a screw (11) and a rotating nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021868645.4U CN213239810U (en) | 2020-08-31 | 2020-08-31 | Detection system for abrasion resistance of shield cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021868645.4U CN213239810U (en) | 2020-08-31 | 2020-08-31 | Detection system for abrasion resistance of shield cutter head |
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| Publication Number | Publication Date |
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| CN213239810U true CN213239810U (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021868645.4U Active CN213239810U (en) | 2020-08-31 | 2020-08-31 | Detection system for abrasion resistance of shield cutter head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252443A (en) * | 2021-06-21 | 2021-08-13 | 马鞍山灵山机械设备科技有限公司 | Shield cutter detection test device |
-
2020
- 2020-08-31 CN CN202021868645.4U patent/CN213239810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252443A (en) * | 2021-06-21 | 2021-08-13 | 马鞍山灵山机械设备科技有限公司 | Shield cutter detection test device |
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