CN111238850A - Comprehensive detection system of shield machine - Google Patents
Comprehensive detection system of shield machine Download PDFInfo
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- CN111238850A CN111238850A CN202010099052.4A CN202010099052A CN111238850A CN 111238850 A CN111238850 A CN 111238850A CN 202010099052 A CN202010099052 A CN 202010099052A CN 111238850 A CN111238850 A CN 111238850A
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- oil
- pressure
- temperature
- sensor
- detection unit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
Abstract
The invention relates to a comprehensive detection system of a shield machine, wherein a hydraulic pump is connected with an oil tank through an oil delivery pipe and an oil absorption ball valve, the hydraulic pump is simultaneously connected with a motor and an electromagnetic proportional amplifier which are connected with a PLC device, the hydraulic pump is connected with a detection unit through a proportional overflow valve, the detection unit is internally provided with a temperature detection unit and a pressure detection unit, the temperature detection unit is internally provided with a reference temperature sensor connected with the PLC device and a temperature quick-plugging connector connected with a measured temperature sensor, and the pressure detection unit is internally provided with a reference pressure sensor connected with the PLC device and a pressure quick-plugging connector connected with the measured pressure sensor; and the PLC equipment is connected with external display equipment and operation equipment. The invention can detect the state of the common sensor in the shield machine, can test various breakers and contactors, and judges the functional state of the components, thereby effectively ensuring the accuracy of the components, greatly improving the detection efficiency of the components and reducing the detection cost.
Description
Technical Field
The invention relates to a detection system, in particular to a comprehensive detection system of a shield machine.
Background
In a system of the shield machine, the working states of detection elements such as a pressure sensor, a temperature sensor, a contactor and a breaker directly affect the maintenance efficiency of the whole system of the shield machine, so that the detection elements must be frequently detected to ensure the normal states of the detection elements. The current common mode is to send various types of pressure sensors and temperature sensors, as well as various types of circuit breakers and contactors in the shield machine system to a professional organization or original manufacturer for detection at regular intervals. The detection mode is high in cost and long in period, and only one type of sensor can be detected by using a specific instrument, so that the detection of various types of sensors needs a plurality of instruments for testing, the testing is complicated, a plurality of sets of instruments need to be purchased, the time cost and the economic cost are high, and the detection efficiency is low.
Disclosure of Invention
The invention provides a comprehensive detection system of a shield machine, which is used for carrying out state detection on a pressure sensor and a temperature sensor which are commonly used by the shield machine, carrying out no-load power-on test on various breakers and contactors in the shield machine, preliminarily judging the functional state of components and improving the maintenance efficiency of the shield machine.
The comprehensive detection system of the shield machine comprises an oil tank for storing hydraulic oil, an oil delivery pipe communicated with the oil tank is connected with a hydraulic pump through an oil absorption ball valve for controlling the circulation of the hydraulic oil, the hydraulic pump is also simultaneously connected with a motor electrically connected with PLC equipment and an electromagnetic proportional amplifier for controlling the pressure of the hydraulic oil in the oil delivery pipe, the output end of the hydraulic pump is connected with a detection unit through a proportional overflow valve, the detection unit is provided with a temperature detection unit and a pressure detection unit, the temperature detection unit is provided with a reference temperature sensor and a temperature quick-plugging connector connected with a measured temperature sensor, the reference temperature sensor and the measured temperature sensor are respectively connected with an analog quantity interface of the PLC equipment, the pressure detection unit is internally provided with a reference pressure sensor and a pressure quick connector connected with the measured pressure sensor, the reference pressure sensor and the measured pressure sensor are respectively connected with an analog quantity interface of the PLC equipment; and the PLC equipment is connected with external display equipment and operation equipment.
The oil tank is used for storing hydraulic oil to dispel the heat to hydraulic oil, defeated oil pipe and oil tank intercommunication, through the oil absorption ball valve with the hydraulic oil suction defeated oil pipe in the oil tank, the hydraulic pump turns into the kinetic energy with the electric energy of motor and carries hydraulic oil, and through the oil pressure in the defeated oil pipe of electromagnetism proportional amplifier and proportional overflow valve control, whether convenient test is surveyed pressure sensor normal. The PLC equipment controls the starting and stopping of the motor and processes the detection data. And respectively connecting the reference temperature sensor, the measured temperature sensor, the reference pressure sensor and the measured pressure sensor with analog quantity interfaces of the PLC equipment, and inputting the reference signal and the measured signal into the PLC equipment for processing. After the hydraulic pump is started, the PLC equipment is used for comparing the difference value between the reference sensor and the detected sensor to evaluate whether the detected sensor is accurate in measurement or not, and corresponding data are displayed on the external display equipment. According to the sensors to be measured with different types and ranges, the range of the judgment data in the PLC equipment can be modified through a touch screen on the operation equipment externally connected with the PLC equipment, so that the PLC equipment is suitable for various sensors.
When carrying out the circular telegram test to circuit breaker and contactor, after providing AC380V power for the motor, insert the switching value input interface of PLC equipment with the operation feedback signal of circuit breaker and contactor, then judge through the voltage measurement value of observing external voltmeter: 1) when the single-phase circuit breaker or the contactor is detected, after the circuit of the element to be detected is closed by electrifying, if the value of the voltmeter is AC220V, the single-phase circuit breaker or the contactor is normal, and if the value of the voltmeter is 0V, the single-phase circuit breaker or the contactor is judged to be damaged; 2) when the three-phase circuit breaker or contactor is detected, after the element circuit to be detected is electrified and closed, if the voltmeter value is AC380V, the three-phase circuit breaker or contactor is normal, and if the voltmeter value is 0V, the three-phase circuit breaker or contactor is judged to be damaged.
Preferably, an oil suction filter for filtering impurities in the oil tank is arranged on the oil delivery pipe between the oil tank and the oil suction ball valve so as to protect the hydraulic pump from normal operation and being not influenced by the impurities in the oil tank.
Preferably, a liquid level and liquid temperature meter for detecting the oil temperature of the oil level in the oil tank is further arranged in the oil tank, so that the accurate value during temperature detection is ensured.
Preferably, an air filter communicated with the inside of the oil tank is further arranged and used for filtering impurities in the air and ensuring the balance of the air pressure inside and outside the oil tank.
Preferably, an oil return filter for filtering impurities in the oil return pipeline is arranged on the oil return pipe, so that the hydraulic oil returning to the oil tank is pure, and the impurities are reduced.
Preferably, the oil delivery pipe and the oil return pipe are respectively provided with a one-way valve, and oil can flow in one direction in the pipeline through the one-way valve and is stopped in the opposite direction.
Preferably, be equipped with the manometer that is arranged in showing defeated oil pipe oil pressure on the defeated oil pipe and with the manometer switch that the manometer corresponds can observe the oil pressure value in the defeated oil pipe at any time. Meanwhile, the display value of the pressure gauge can also provide a reference pressure value when the pressure sensor is detected.
Preferably, the temperature quick-plug connector is provided with a quick-plug temperature female connector and a quick-plug temperature male connector which are used for being connected with the measured temperature sensor.
Preferably, the pressure quick-plug connector is provided with a quick-plug pressure female connector and a quick-plug pressure male connector which are used for being connected with the pressure sensor to be tested.
The quick connector of temperature and the quick connector of pressure all provide three kinds respectively and are surveyed the interface that the sensor is connected, make it can convenient and fast connect the detection to the surveyed sensor of different grade type, and the structure of three kinds of interfaces is respectively: 1) two-wire system sensor interface: one wire is connected with a power supply of the sensor to be detected, and the other wire is connected with a signal + of the sensor to be detected; 2) three-wire system sensor interface: one wire is connected with a power supply of the sensor to be detected, the second wire is connected with the power supply of the sensor to be detected, and the third wire is connected with a signal + of the sensor to be detected; 3) four-wire system temperature sensor interface: one wire is connected with a power supply of the sensor to be detected, the second wire is connected with the power supply of the sensor to be detected, and the third wire is connected with a signal + of the sensor to be detected; the fourth wire is connected to the signal-of the sensor under test.
Preferably, the oil pipeline is provided with a thermometer for displaying the oil temperature in the oil pipeline. Meanwhile, the thermometer can also provide a temperature reference value when the temperature sensor is detected.
The detection program and the control program of the detection system involved in the present invention are all the prior art in the field or can be realized by a person skilled in the art according to the conventional principle of the art in combination with the specific application of the present invention, and the part is not the innovation of the present invention.
The comprehensive detection system of the shield machine can detect the states of the pressure sensor and the temperature sensor which are commonly used in the shield machine, can also carry out no-load power-on test on various breakers and contactors in the shield machine, preliminarily judges the functional states of components, effectively ensures the accuracy of the components, greatly improves the detection efficiency of the components and reduces the detection cost.
The present invention will be described in further detail with reference to the following examples. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. Various substitutions and alterations according to the general knowledge and conventional practice in the art are intended to be included within the scope of the present invention without departing from the technical spirit of the present invention as described above.
Drawings
Fig. 1 is a schematic structural diagram of the comprehensive detection system of the shield tunneling machine of the present invention.
Detailed Description
The detection program and the control program of the detection system involved in the present invention are all the prior art in the field or can be realized by a person skilled in the art according to the conventional principle of the art in combination with the specific application of the present invention, and the part is not the innovation of the present invention.
As shown in fig. 1, the comprehensive detection system of the shield tunneling machine of the present invention has an oil tank 1 for storing hydraulic oil, and the oil tank 1 is used for storing hydraulic oil and dissipating heat of the hydraulic oil. A liquid level thermometer 4 used for detecting the oil temperature of the oil level in the oil tank 1 and an air filter 5 communicated with the inside of the oil tank 1 are arranged in the oil tank 1, and the air filter 5 is used for filtering impurities in air and ensuring the balance of the air pressure inside and outside the oil tank 1. Meanwhile, an oil return filter 6 for filtering impurities in an oil return pipeline is also arranged on the oil return pipe, so that hydraulic oil returning to the oil tank 1 is pure, and the impurities are reduced. One-way valves 9 are respectively arranged at corresponding positions of the oil delivery pipe and the oil return pipe, and oil can flow in one direction in the pipeline through the one-way valves 9 and is stopped in the opposite direction.
The oil delivery pipe communicated with the oil tank 1 is provided with the oil absorption filter 2 for filtering impurities in the oil tank 1, and the oil absorption filter 2 can protect the hydraulic pump 8 from normal operation and cannot be influenced by the impurities in the oil tank 1. The oil absorption filter 2 is connected with a hydraulic pump 8 through an oil absorption ball valve 3 for controlling the circulation of hydraulic oil, and the hydraulic pump 8 is also simultaneously connected with a motor 7 electrically connected with a PLC (programmable logic controller) device 20 and an electromagnetic proportional amplifier 19 for controlling the pressure of the hydraulic oil in an oil delivery pipe. In this embodiment, the PLC device 20 is a siemens 1200 series PLC. The PLC device 20 is also externally connected with a display device and an operation device. The oil conveying pipe is provided with a pressure gauge 11 for displaying oil pressure in the oil conveying pipe and a pressure gauge switch 10 corresponding to the pressure gauge 11, and an oil pressure value in the oil conveying pipe can be observed at any time. Meanwhile, the display value of the pressure gauge 11 may also provide a reference pressure value when detecting the pressure sensor. The output end of the hydraulic pump 8 is connected with the detection unit through a proportional overflow valve 12 and a high-pressure ball valve 13, and the high-pressure ball valve 13 is an on/off control switch of an oil delivery pipe. The detection unit is provided with a temperature detection unit and a pressure detection unit, wherein the temperature detection unit is provided with a reference temperature sensor 142 and a temperature quick connector 15 connected with a measured temperature sensor 141, and the reference temperature sensor 142 and the measured temperature sensor 141 are respectively connected with an analog quantity interface of the PLC device 20. The temperature quick-plug connector 15 has a quick-plug temperature female connector 151 and a quick-plug temperature male connector 152 for connecting with the measured temperature sensor 141. Similarly, a reference pressure sensor 182 and a pressure quick connector 16 connected to the pressure sensor 181 to be measured are provided in the pressure detection unit, and the reference pressure sensor 182 and the pressure sensor 181 to be measured are respectively connected to the analog interface of the PLC device 20. The pressure quick-plug connector 16 is provided with a quick-plug pressure female connector 161 and a quick-plug pressure male connector 162 which are used for connecting with a pressure sensor 181 to be measured. The oil delivery pipe is also provided with a thermometer 17 for displaying the oil temperature in the oil delivery pipe. Meanwhile, the temperature meter 17 may also provide a temperature reference value when detecting the temperature sensor.
Defeated oil pipe and oil tank 1 intercommunication, inhale defeated oil pipe through the hydraulic oil in oil absorption ball valve 3 in with oil tank 1, hydraulic pump 8 converts the electric energy of motor 7 into kinetic energy and carries hydraulic oil to through the oil pressure in the defeated oil pipe of electromagnetism proportional amplifier 19 and the control of proportion overflow valve 12, whether convenient test is surveyed pressure sensor 181 and is normal. The PLC device 20 controls the starting and stopping of the motor 7 and processes the detection data. The reference temperature sensor 142, the measured temperature sensor 141, the reference pressure sensor 182, and the measured pressure sensor 181 are connected to analog interfaces of the PLC device 20, and both the reference signal and the measured signal are input to the PLC device 20 and processed.
Moreover, the quick temperature plug 15 and the quick pressure plug 16 respectively provide three interfaces connected with the measured sensor, so that the measured sensors of different types can be conveniently and quickly connected and detected, and the structures of the three interfaces are respectively as follows: 1) two-wire system sensor interface: one wire is connected with a power supply of the sensor to be detected, and the other wire is connected with a signal + of the sensor to be detected; 2) three-wire system sensor interface: one wire is connected with a power supply of the sensor to be detected, the second wire is connected with the power supply of the sensor to be detected, and the third wire is connected with a signal + of the sensor to be detected; 3) four-wire system temperature sensor interface: one wire is connected with a power supply of the sensor to be detected, the second wire is connected with the power supply of the sensor to be detected, and the third wire is connected with a signal + of the sensor to be detected; the fourth wire is connected to the signal-of the sensor under test.
When the sensor is detected, after the hydraulic pump 8 is started, the PLC device 20 compares the difference value between the reference sensor and the detected sensor to evaluate whether the detected sensor is accurately measured or not, and displays corresponding data on the external display device. Or, whether the working states of the temperature sensor to be measured and the pressure sensor to be measured are normal or not can be judged according to the display values of the temperature meter 17 and the pressure meter 11 as reference. Meanwhile, according to the sensors to be measured of different types and ranges, the range of the judgment data in the PLC device 20 can be modified through a touch screen of an operating device externally connected to the PLC device 20, so as to adapt to various sensors.
When carrying out the circular telegram test to circuit breaker and contactor, after providing AC380V power for motor 7, insert the switching value input interface of PLC equipment 20 with the operation feedback signal of circuit breaker and contactor, then judge through the voltage measurement value of observing external voltmeter: 1) when the single-phase circuit breaker or the contactor is detected, after the circuit of the element to be detected is closed by electrifying, if the value of the voltmeter is AC220V, the single-phase circuit breaker or the contactor is normal, and if the value of the voltmeter is 0V, the single-phase circuit breaker or the contactor is judged to be damaged; 2) when the three-phase circuit breaker or contactor is detected, after the element circuit to be detected is electrified and closed, if the voltmeter value is AC380V, the three-phase circuit breaker or contactor is normal, and if the voltmeter value is 0V, the three-phase circuit breaker or contactor is judged to be damaged.
Claims (10)
1. The comprehensive detection system of the shield machine is characterized in that: the device is provided with an oil tank (1) for storing hydraulic oil, an oil delivery pipe communicated with the oil tank (1) is connected with a hydraulic pump (8) through an oil suction ball valve (3) for controlling the circulation of the hydraulic oil, the hydraulic pump (8) is also simultaneously connected with a motor (7) electrically connected with a PLC (programmable logic controller) device (20) and an electromagnetic proportional amplifier (19) for controlling the pressure of the hydraulic oil in the oil delivery pipe, the output end of the hydraulic pump (8) is connected with a detection unit through a proportional overflow valve (12), the detection unit is internally provided with a temperature detection unit and a pressure detection unit, the temperature detection unit is internally provided with a reference temperature sensor (142) and a temperature quick plug (15) connected with a measured temperature sensor (141), the reference temperature sensor (142) and the measured temperature sensor (141) are respectively connected with an analog quantity interface of the PLC device (20), and the pressure detection unit is internally provided with a reference pressure sensor (182) and a pressure quick plug (16), the reference pressure sensor (182) and the measured pressure sensor (181) are respectively connected with an analog quantity interface of the PLC device (20); and the PLC equipment (20) is connected with external display equipment and external operation equipment.
2. The comprehensive shield tunneling machine detection system according to claim 1, wherein: an oil delivery pipe between the oil tank (1) and the oil absorption ball valve (3) is provided with an oil absorption filter (2) for filtering impurities in the oil tank.
3. The comprehensive shield tunneling machine detection system according to claim 1, wherein: and a liquid level and liquid temperature meter (4) for detecting the oil temperature of the oil level in the oil tank is also arranged in the oil tank.
4. The comprehensive shield tunneling machine detection system according to claim 1, wherein: an air filter (5) communicated with the inside of the oil tank is also arranged.
5. The comprehensive shield tunneling machine detection system according to claim 1, wherein: an oil return filter (6) for filtering impurities in the oil return pipeline is arranged on the oil return pipe.
6. The comprehensive shield tunneling machine detection system according to claim 5, wherein: the oil delivery pipe and the oil return pipe are respectively provided with a one-way valve (9).
7. The comprehensive shield tunneling machine detection system according to claim 1, wherein: the oil conveying pipe is provided with a pressure gauge (11) for displaying oil pressure in the oil conveying pipe and a pressure gauge switch (10) corresponding to the pressure gauge (11).
8. The comprehensive shield tunneling machine detection system according to claim 1, wherein: the temperature quick-plug connector (15) is provided with a quick-plug temperature female connector (151) and a quick-plug temperature male connector (152) which are used for being connected with a measured temperature sensor (141).
9. The comprehensive shield tunneling machine detection system according to claim 1, wherein: the pressure quick-plug connector (16) is provided with a quick-plug pressure female connector (161) and a quick-plug pressure male connector (162) which are used for connecting with a pressure sensor (181) to be measured.
10. The comprehensive shield tunneling machine detection system according to claim 1, wherein: the oil delivery pipe is provided with a thermometer (17) for displaying the oil temperature in the oil delivery pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099052.4A CN111238850A (en) | 2020-02-18 | 2020-02-18 | Comprehensive detection system of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099052.4A CN111238850A (en) | 2020-02-18 | 2020-02-18 | Comprehensive detection system of shield machine |
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| CN111238850A true CN111238850A (en) | 2020-06-05 |
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| CN202010099052.4A Pending CN111238850A (en) | 2020-02-18 | 2020-02-18 | Comprehensive detection system of shield machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795789A (en) * | 2020-09-09 | 2020-10-20 | 中铁工程服务有限公司 | Shield constructs experimental detection device of quick-witted center solid of revolution |
-
2020
- 2020-02-18 CN CN202010099052.4A patent/CN111238850A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111795789A (en) * | 2020-09-09 | 2020-10-20 | 中铁工程服务有限公司 | Shield constructs experimental detection device of quick-witted center solid of revolution |
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