CN201163223Y - Static load test apparatus - Google Patents
Static load test apparatus Download PDFInfo
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- CN201163223Y CN201163223Y CNU2008200654157U CN200820065415U CN201163223Y CN 201163223 Y CN201163223 Y CN 201163223Y CN U2008200654157 U CNU2008200654157 U CN U2008200654157U CN 200820065415 U CN200820065415 U CN 200820065415U CN 201163223 Y CN201163223 Y CN 201163223Y
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a bearing capacity static testing device in the engineering construction field, in particular to a static load tester. The tester comprises an electric circuit module, wherein the electric circuit module comprises a power supply circuit, a central processing controller, a signal acquisition circuit and an oil pump control circuit; the signal acquisition circuit and the oil pump control circuit are connected with the central processing controller respectively; the signal acquisition circuit comprises a signal acquisition interface; the oil pump control circuit comprises an oil pump power supply output interface; the electric circuit module also comprises a wireless network component connected with a communication interface of the central processing controller. In the utility model, signals can be sent to a testing treatment terminal (ex. a notebook PC) at the long distance in the mode of wireless network data, thereby avoiding the forced stop of the test due to the accident cut off of the external data bus and realizing the arrangement of a plurality of static load testers on different testing points for simultaneous test, along with safe and reliable test.
Description
Technical field
The utility model relates to the bearing capacity Static Detection equipment in the construction project field, particularly a kind of static load test instrument.
Technical background
Be applied in the construction project at present, bearing capacity is carried out the instrument and meter of Static Detection, acquisition test The data pressure transducer and displacement transducer, sensor output signal divides simulating signal and digital signal two classes, the instrument and meter that bearing capacity is carried out Static Detection adopts analog to digital converter and frequency measurement technology to carry out the digitizing conditioning of data, the instrument and meter of these bearing capacity Static Detection is provided with bus interface, test figure is transferred to data receiving terminal by the data transmission bus that is connected with bus interface and carries out test figure real-time analysis processes and displays then, and send the operating condition of corresponding instruction control oil pump by data transmission bus by data receiving terminal according to Test condition, treat again test figure to be dumped on the computing machine after whole test finishes, carry out the analysis and arrangement of test figure and print.The shortcoming of this mode is 1, is subjected to the restriction of data transmission distance that when transmission range was longer, signal disturbed antijamming capability big, instrument just relatively poor, so the common distance test (DT) point of existing test apparatus system is only about 50 meters; 2, owing to need lay a data transmission bus at the scene, so in case data transmission bus by accidental damage (such as being broken) by on-the-spot Construction traffic, then test will have to stop; 3, a data receiving terminal can only be done a testing site, can not do the test more than simultaneously, often is that a testing site needs three day time, and a test site needs tens day time, influences the follow-up construction period; 4, data can not in time be transferred to detection unit, can only data conversion storage could be come out after off-test, cause the test responsible person can not in time understand on-the-spot progress and test situation.5, observation position can not be fixed, influence the test process, because other building operations such as earth excavation have been arranged in the construction work place at place, testing site mostly simultaneously at duration of test, the building materials that stack the construction site etc. also needs to take certain space, cause to utilize workplace more and more littler, in order to guarantee carrying out smoothly of each operation, frequently nigration data receiving terminal; 6, power supply is had specific (special) requirements, need 220V alternating current and 380V AC-powered simultaneously, and sometimes the working-yard has only a kind of power supply to use, what influence was tested carries out smoothly.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of static load test instrument of being convenient to on-the-spot test, dependable performance is provided.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: comprise circuit module, described circuit module is arranged in the casing, described circuit module comprises power circuit, central processing controller, signal acquisition circuit, the oil pump control circuit, described power circuit comprises the AC power input interface, described signal acquisition circuit, the oil pump control circuit is connected with central processing controller respectively, described signal acquisition circuit comprises the signals collecting interface, described oil pump control circuit comprises the oil pump power output interface, its difference is: described circuit module also comprises wireless network components, and described wireless network components is connected to the PORT COM of central processing controller.
Press such scheme, described PORT COM is the serial communication port, is provided with serial ports-network communication signaling conversion circuit between the COM port of described wireless network components and central processing controller.
Press such scheme, circuit module also includes wired network interface, and described wired network interface is connected with wireless network components.
Press such scheme, also comprise casing, described wireless network components comprises wireless network card, wireless router, and wireless network card is connected with serial ports-network communication signaling conversion circuit, and wireless router is arranged in the casing of static load test instrument or outside the casing.
Press such scheme, described signal acquisition circuit comprises first signal acquisition circuit, secondary signal Acquisition Circuit; Described first signal acquisition circuit is the displacement signal Acquisition Circuit, described displacement signal Acquisition Circuit comprises displacement signal acquisition interface, the first filter shape amplifying circuit, frequency counting circuit, the signal input part of the described first filter shape amplifying circuit is connected with the displacement signal acquisition interface, the signal input part of described frequency counting circuit is connected with the first filter shape amplifying circuit, and described frequency counting circuit is connected with FPDP, the address port of central processing controller; Described secondary signal Acquisition Circuit is to gather pressure, the signal acquisition circuit of force signal, described secondary signal Acquisition Circuit comprises the pressure signal acquisition interface, the force signal acquisition interface, the second filter shape amplifying circuit, the 3rd filter shape amplifying circuit, analog switch, analog to digital conversion circuit, the signal input part of the described second filter shape amplifying circuit is connected with the pressure signal acquisition interface, the signal input part of described the 3rd filter shape amplifying circuit is connected with the force signal acquisition interface, the signal output part of the described second filter shape amplifying circuit, the signal output part of the 3rd filter shape amplifying circuit is connected with analog switch respectively, the signal input part of analog-digital conversion circuit as described is connected with analog switch, the FPDP of analog-digital conversion circuit as described and central processing controller, address port connects.
Press such scheme, described oil pump control circuit comprises amplifying circuit, delay circuit, relay module, oil pump power output interface, the I/O port of described amplifying circuit and central processing controller is connected, described delay circuit is connected with amplifying circuit, central processing controller, the signal controlling end of described relay module is connected with the signal output part of delay circuit, the power input of described relay module is connected with the AC power input interface, and the power output end of described relay module is connected with the oil pump power output interface.
Press such scheme, described AC power input interface is 220V or 380V AC power input interface, described power circuit also comprises alternating current-direct current conversion module, DC/DC translation circuit, described AC power input interface is connected with the alternating current-direct current conversion module, and the dc voltage output end of described alternating current-direct current conversion module is connected with the voltage input end of DC/DC translation circuit.
Press such scheme, described circuit module also is provided with the oil pump hand control switch, and an end of described oil pump hand control switch is connected with delay circuit, and the other end is connected with direct supply.
Press such scheme, described delay circuit comprises the NE555 timer, first resistance, second resistance, the 3rd resistance, first electric capacity, second electric capacity, the 3rd electric capacity, described first resistance is connected between 2 pin and 8 pin of NE555 timer, described second resistance is connected between 6 pin and 8 pin of NE555 timer, described the 3rd resistance is connected between 3 pin and described amplifying circuit of NE555 timer, connect with lead between 6 pin of described NE555 timer and 7 pin, described second electric capacity is connected between 2 pin and 1 pin of NE555 timer, described first electric capacity is connected between 1 pin and 7 pin of NE555 timer, 1 pin ground connection of described NE555 timer, 8 pin of described NE555 timer meet direct supply 5V, and 4 pin of described NE555 timer are connected to the I/O port of central processing controller.
Press such scheme, described DC/DC translation circuit comprises a DC/DC translation circuit, the 2nd DC/DC translation circuit, the DC output end of the one DC/DC translation circuit is connected with the signals collecting interface of signal acquisition circuit, and the DC output end of the 2nd DC/DC translation circuit is connected with the power pins of respective devices in the circuit module.
The contrast prior art, the principle and the beneficial effect of technical solutions of the utility model are:
1, circuit module comprises power circuit, central processing controller, signal acquisition circuit, oil pump control circuit, described signal acquisition circuit, oil pump control circuit are connected with central processing controller, described power circuit comprises the AC power input interface, described signal acquisition circuit comprises the signals collecting interface, described oil pump control circuit comprises the oil pump power output interface, described circuit module also comprises wireless network components, and the PORT COM of described wireless network components and central processing controller is connected.Because at range sensor acquisition test signal nearby, greatly reduce sensor signal and be subjected to the possibility of other electromagnetic interference (EMI), and signal is directly sent to test processing terminal (as notebook) with the form of wireless network data, avoided because data bus is broken by accident and tests the situation of being forced to stop; With present wireless network transmission technology, its theoretical test command range can reach 500 meters of circumferences, has expanded signal transmission distance greatly, has strengthened security, the reliability of test; Owing to adopted wireless network components to carry out the transmission of test figure, make many static load test instrument be arranged in a plurality of testing sites and test simultaneously and become a reality, improved on-the-spot test efficient greatly, saved experimentation cost.
2, be provided with serial ports-network communication signaling conversion circuit between the COM port of wireless network components and central processing controller, the data of central processing controller collection send to wireless network components by serial ports-network communication signaling conversion circuit, and wireless network components sends to test processing terminal (as notebook) by wireless network with the data of gathering; Test processing terminal (as notebook) sends to wireless network components by wireless network with order, and wireless network components is transmitted to central processing controller by serial ports with order.The test processing terminal can in time be transferred to test detection unit with data by connecting the INTERNET Internet.
3, also be provided with wired network interface on the casing, wired network interface is connected with wireless network components, makes the utility model possess wireless transmission and wire transmission function simultaneously like this.
4, wireless router is arranged in the casing or outside the casing, has made things convenient for the assembling and the debugging of wireless router.
5, signal acquisition circuit comprises first signal acquisition circuit, secondary signal Acquisition Circuit, first signal acquisition circuit is the displacement signal Acquisition Circuit, the secondary signal Acquisition Circuit is to gather the signal acquisition circuit of pressure, force signal, described secondary signal Acquisition Circuit comprises pressure signal acquisition interface, force signal acquisition interface, the second filter shape amplifying circuit, the 3rd filter shape amplifying circuit, analog switch, analog to digital conversion circuit, so both displacement signal can be gathered, also pressure, force signal can be gathered; The general on-the-spot sensor that uses has: frequency modulation displacement sensor, piezoresistive pressure sensor and radial force transducer, the type of sensor of arranging at the scene according to the user adopts corresponding interface, make things convenient for on-the-spot test, also improved the usable range of instrument.
6, the principle and advantage of the delay circuit of oil pump control circuit is: NE555 timer and be connected to 2 pin of NE555 and 2 resistance of 6 pin; and be connected to the decoupling capacitor of 2 pin, 5 pin of NE555 and the electric capacity that is connected 7 pin is formed oil pump circuit control delay protection part; 4 pin of NE555 are reset terminals; the reset signal that this reset terminal acceptance is sent from central controller; 1 pin connects digital power ground, and 8 pin meet digital power 5V.The timing of design is 3 seconds at present, and this time can change by the value of adjusting NE555 resistance capacitance on every side.After the oil pump control signal that central controller sends is amplified, through 3 pin of a current-limiting resistance connection NE555, enter oil pump control delay protection circuit, 2 pin of NE555 and the control end of relay module are connected.After sending the order of opening oil pump when central controller, if central controller does not send the order of opening oil pump once more in delay time, then oil pump control delay protection circuit will cut off the oil pump power supply automatically, play the effect of protection test safety.
7, described oil pump control circuit comprises amplifying circuit, delay circuit, relay module, oil pump power output interface, the I/O port of described amplifying circuit and central processing controller is connected, described delay circuit is connected with amplifying circuit, central processing controller respectively, the signal controlling end of described relay module is connected with the signal output part of delay circuit, the power input of described relay module is connected with the AC power input interface, and the power output end of described relay module is connected with the oil pump power output interface.The oil pump control circuit is used to control the duty of oil pump; Also comprise the oil pump hand control switch on the described circuit module, an end of described oil pump hand control switch is connected with delay circuit, and the other end is connected with direct supply; The oil pump hand control switch is the break-make for the ease of the control delay circuit, and then the break-make of pilot relay, reaches the purpose of control oil pump duty at last, thereby is convenient to the action of the on-the-spot oil pump of control in time.
8, the principle of alternating current-direct current conversion module and effect: the alternating current-direct current conversion module possesses transformation, rectification, filtering and defencive function, dependable performance.
9, the AC power input interface is 220V or 380V AC power input interface, the many usefulness of power supply, and the also available 380V of both available 220V, the power supply that the static load test instrument uses and the power supply of on-the-spot oil pump are consistent, have avoided the specific (special) requirements to power supply.
10, described DC/DC translation circuit comprises a DC/DC translation circuit, the 2nd DC/DC translation circuit, the DC output end of the one DC/DC translation circuit is connected with the signals collecting interface of signal acquisition circuit, and the DC output end of the 2nd DC/DC translation circuit is connected with the power pins of respective devices in the circuit module.Direct supply provides power supply can on the one hand on-the-spot sensor, on the other hand by using for other circuit in the static load test instrument casing after the 2nd DC/DC translation circuit conversion DC voltage.
11, the utility model monitoring is in time reacted fast, and is simple to operate.
Description of drawings
Fig. 1 is the functional block diagram of signal processing
Fig. 2 is the circuit diagram of amplifying circuit and delay circuit
Fig. 3 is the functional block diagram of power unit
Fig. 4 is an alternating current-direct current conversion module circuit diagram
Fig. 5 is the cabinet panel synoptic diagram
Fig. 6 is a casing rear structure synoptic diagram
Fig. 7 is the synoptic diagram of using method one
Fig. 8 is the synoptic diagram of using method two
Fig. 9 is the central processing controller flow chart.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the functional block diagram of signal processing, as shown in Figure 1, this static load test instrument comprises circuit module, described circuit module comprises power circuit, central processing controller U0, signal acquisition circuit, the oil pump control circuit, described power circuit comprises the AC power input interface, described signal acquisition circuit, the oil pump control circuit is connected with central processing controller U0 respectively, described signal acquisition circuit comprises the signals collecting interface, described oil pump control circuit comprises oil pump power output interface J10, described circuit module also comprises wireless network components, the COM port RX of described wireless network components and central processing controller U0, COM port TX connects.What central processing controller U0 selected for use is 51 serial central processing controller, and signal acquisition circuit is connected with P0 port, the P2 port of central processing controller U0, and the P1 port of oil pump control circuit and central processing controller U0 is connected.When central processing controller U0 selected other model for use, the connectivity port of signal acquisition circuit, oil pump control circuit and central processing controller U0 may have different.The static load test instrument is arranged on range sensor acquisition test signal nearby, greatly reduce sensor signal and be subjected to the possibility of other electromagnetic interference (EMI), and signal is directly sent to test processing terminal (as notebook) with the form of wireless network data, avoided because data bus is broken by accident and tests the situation of being forced to stop.
Be provided with serial ports-network communication signaling conversion circuit U7 between the COM port RX of wireless network components and central processing controller, the COM port TX; Circuit module also includes wired network interface J5, and described wired network interface J5 is connected with wireless network components, makes the utility model possess wireless transmission and wire transmission function simultaneously like this; Described wireless network components comprises wireless network card, wireless router, wireless network card is connected with serial ports-network communication signaling conversion circuit U7, wireless router is arranged in the casing of static load test instrument or outside the casing, such being provided with made things convenient for the assembling and the debugging of wireless router.
Signal acquisition circuit comprises first signal acquisition circuit, secondary signal Acquisition Circuit; Described first signal acquisition circuit is the displacement signal Acquisition Circuit, described displacement signal Acquisition Circuit comprises displacement signal acquisition interface J6, the first filter shape amplifying circuit U1, frequency counting circuit U4, the signal input part of the described first filter shape amplifying circuit U1 is connected with displacement signal acquisition interface J6, the signal input part of described frequency counting circuit U4 is connected with the first filter shape amplifying circuit U1, and described frequency counting circuit U1 is connected with P0 port, the P2 port of central processing controller U0; Described secondary signal Acquisition Circuit is to gather pressure, the signal acquisition circuit of force signal, described secondary signal Acquisition Circuit comprises pressure signal acquisition interface J7, force signal acquisition interface J8, the second filter shape amplifying circuit U2, the 3rd filter shape amplifying circuit U12, analog switch U11, analog to digital conversion circuit U6, the signal input part of the described second filter shape amplifying circuit U2 is connected with pressure signal acquisition interface J7, the signal input part of described the 3rd filtering shaping circuit U12 is connected with force signal acquisition interface J8, the signal output part of the described second filter shape amplifying circuit U2, the signal output part of the 3rd filter shape amplifying circuit U12 is connected with analog switch U11 respectively, the signal input part of analog-digital conversion circuit as described U4 is connected with analog switch U11, the P0 port of analog-digital conversion circuit as described U4 and central processing controller, the P2 port connects.The general on-the-spot sensor that uses has: frequency modulation displacement sensor, piezoresistive pressure sensor and radial force transducer, the type of sensor of arranging at the scene according to the user adopts corresponding interface, make things convenient for on-the-spot test, also improved the usable range of instrument.The signals collecting interface of the signal acquisition circuit in the present embodiment is selected 12 displacement signal acquisition interface J6,1 pressure signal acquisition interface J7,1 force signal acquisition interface J8 for use.
Fig. 2 is the circuit diagram of amplifying circuit and delay circuit, as shown in Figure 2, the oil pump control circuit comprises amplifying circuit U9, delay circuit U10, relay module U11, oil pump power output interface J10, the I/O port P1 mouth of described amplifying circuit U9 and central processing controller U0 is connected, described delay circuit U10 and amplifying circuit U9, central processing controller U0 connects, the signal controlling end of described relay module U11 is connected with the signal output part of delay circuit U10, the power input of described relay module U11 is connected with AC power input interface J9, and the power output end of described relay module is connected with oil pump power output interface J10.The central processing controller of present embodiment is selected 51 serial central processing controller for use.External 380V or 220V power supply are connected on the oil pump power output interface J10 through relay module U11, and central processing controller U0 is by the duty of oil pump control circuit control oil pump.The signal that amplifying circuit output enters delay circuit is an oil pump working signal, when being high level, and the oil pump running, after removing this signal, after time-delay a period of time, oil pump quits work.The P1 port of central processing controller U0 also is connected with indicator light circuit.Indicator light circuit is connected with power lights, oil pump front running lamp, morse signal light on the casing, can monitor the duty of static load test instrument easily by the switch of power lights, oil pump front running lamp, morse signal light.
As shown in Figure 2, circuit module also comprises oil pump hand control switch S1, and the circuit connecting method of oil pump hand control switch S1 is that the end with oil pump hand control switch S1 is connected with delay circuit U10, and the other end is connected with direct supply 5V.Specifically, oil pump hand control switch S1 one termination direct supply 5V, the other end enter the Q end of the NE555 timer among the delay circuit U10 by the 3rd resistance R 3.The installation site of oil pump hand control switch S1 can be arranged on the position of any handled easily, as oil pump hand control switch S1 is installed on the cabinet panel.Described delay circuit comprises the NE555 timer, first resistance R 1, second resistance R 2, the 3rd resistance R 3, first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, described first resistance R 1 is connected between 2 pin and 8 pin of NE555 timer, described second resistance R 2 is connected between 6 pin and 8 pin of NE555 timer, described the 3rd resistance R 3 is connected between 3 pin and described amplifying circuit of NE555 timer, connect with lead between 6 pin of described NE555 timer and 7 pin, described second capacitor C 2 is connected between 2 pin and 1 pin of NE555 timer, described first capacitor C 1 is connected between 1 pin and 7 pin of NE555 timer, 1 pin ground connection of described NE555 timer, 8 pin of described NE555 timer meet direct supply 5V, and 4 pin of described NE555 timer are connected to the corresponding port of central processing controller.The setting of oil pump hand control switch is for the ease of the break-make of control delay circuit, can control the on off state of oil pump power supply by the oil pump control circuit, thereby be convenient to control the action of lifting jack.A slice NE555 timer and be connected to 2 pin of NE555 and 2 resistance R 1, the R2 of 6 pin; and be connected to second capacitor C 2, the 3rd capacitor C 3 of 2 pin, 5 pin of NE555 and first capacitor C 1 that is connected 7 pin is formed oil pump circuit control delay protection part; 4 pin of NE555 are reset terminals; send reset signal by central controller; 1 pin connects digital power ground, and 8 pin meet digital power 5V.The timing of design is 3 seconds at present, and this time can change by the value of adjusting NE555 resistance capacitance on every side.After the oil pump control signal that central controller sends is amplified, through 3 pin that play the 3rd resistance R 3 connection NE555 of metering function, enter oil pump control delay protection circuit, 2 pin of NE555 and the control end of solid-state relay are connected; After sending the order of opening oil pump when central controller, if central controller does not send the order of opening oil pump once more in delay time, then oil pump control delay protection circuit will cut off the oil pump power supply automatically, play the effect of protection test safety.
Fig. 3 is the functional block diagram of power unit, as shown in Figure 3, the AC power input interface is 220V or 380V AC power input interface J9, described power circuit also comprises alternating current-direct current conversion module U12, DC/DC translation circuit, described AC power input interface J9 is connected with alternating current-direct current conversion module U12, and the dc voltage output end of described alternating current-direct current conversion module U12 is connected with the voltage input end of DC/DC translation circuit.Power circuit comprises 220V or 380V AC power input interface, the many usefulness of power supply, and the also available 380V of both available 220V, the power supply that the static load test instrument uses and the power supply of on-the-spot oil pump are consistent, have avoided the specific (special) requirements to power supply.
Fig. 4 is an alternating current-direct current conversion module circuit diagram, as shown in Figure 4, alternating current-direct current conversion module U12 comprises AC transformer, the first joint J1, the second joint J2, the first diode D1, the second diode D4, the 3rd diode D2, the 4th diode D3, the 4th capacitor C 4, the 5th capacitor C 5, electrochemical capacitor C6, voltage stabilizing diode D5, the 4th resistance R 4, the 5th resistance R 5, the input end of described AC transformer is connected with the AC power input interface, the described first joint J1 is connected with the output terminal of AC transformer, the positive level of the described first diode D1 is connected with the first joint P1, the negative pole of the described first diode D1 is connected with the positive pole of the second diode D4, the negative pole of the described second diode D4 is connected with the second joint P2, described the 3rd diode D2, the 4th diode D3 forward connects, the positive pole of the 3rd diode D2 is connected with the pin of the first joint P1, the negative pole of the 4th diode D3 directly is connected with the negative pole of the second diode D4, described first resistance R 4 is connected with the negative pole of electrochemical capacitor C6, the 4th resistance R 4, the common junction of electrochemical capacitor C6 connects power supply ground, the positive pole of electrochemical capacitor C6 is connected with the negative pole of the second diode D4, described the 5th capacitor C 5 and the first diode D1, the series circuit parallel connection of the second diode D4, described the 4th capacitor C 4 and the 3rd diode D2, the series circuit parallel connection of the 4th diode D3, one end of described the 5th resistance R 5 and the 4th resistance R 4, the common junction of electrochemical capacitor C6 connects, the other end ground connection of described the 5th resistance R 5, the reverse parallel connection of the DC output end of the described voltage stabilizing diode D5 and the second joint J2, the positive pole of voltage stabilizing diode D5 connects power supply ground.Described DC/DC translation circuit comprises a DC/DC translation circuit U13, the 2nd DC/DC translation circuit U14, the DC output end of the one DC/DC translation circuit is connected with the signals collecting interface of signal acquisition circuit, and the DC output end of the 2nd DC/DC translation circuit U14 is connected with the power pins of respective devices in the circuit module.The signals collecting interface of signal acquisition circuit is displacement signal acquisition interface J6 among the utility model embodiment, pressure signal acquisition interface J7, force signal acquisition interface J8, the DC output end of a described DC/DC translation circuit is the first direct supply output interface J3 that draws by it, the second direct supply output interface J4 is connected with the signals collecting interface of signal acquisition circuit, in the present embodiment, the first direct supply output interface J3, the second direct supply output interface J4 is arranged on the printed circuit board (PCB), the signals collecting interface of signal acquisition circuit all is arranged on the panel of casing, the signals collecting interface of signal acquisition circuit is connected to printed circuit board (PCB), and the signals collecting interface of signal acquisition circuit is meant 12 displacement signal acquisition interface J6,1 pressure signal acquisition interface J7,1 force signal acquisition interface J8.
The alternating current-direct current conversion module possesses transformation, rectification, filtering and defencive function, dependable performance; Become+the 12V D.C. regulated power supply after transformation, rectification, filtering and the protection of external AC by alternating current-direct current conversion module U12; + 12V D.C. regulated power supply is transformed to ± the 12V power supply by a DC/DC translation circuit on the one hand; ± 12V power supply can offer sensor and use; be transformed to+the 5V power supply by the 2nd DC/DC translation circuit U14 on the other hand, use for the single chip circuit in the casing.
Fig. 5 is the cabinet panel synoptic diagram, as shown in Figure 5,4 rows, 3 row totally 12 displacement signal acquisition interface J6 have been arranged on the left side of cabinet panel, upper-right position near displacement signal acquisition interface J6 is provided with a pressure signal acquisition interface J7, a force signal acquisition interface J8, the upper-right position of panel is provided with row's pilot lamp, is respectively power lights, oil pump front running lamp, morse signal light; The right lower quadrant position of panel also is provided with the power switch S2 of wired network interface J5, oil pump hand control switch S1, power circuit.
Fig. 6 is a casing rear structure synoptic diagram, as shown in Figure 6, that the rear portion of casing is provided with is 220V or 380V AC power input interface J9, oil pump power output interface J10, these two interfaces are selected the three-phase four-wire power socket for use, 220V or 380V AC power input interface J9 are the working site provides interfaces from AC power to the static load test instrument, oil pump power output interface J10 is the static load test instrument provides the interface of power supply to oil pump, and above interface also can adopt the interface of other type.
Fig. 7 is the synoptic diagram of using method one, as shown in Figure 7, using method one is the using method when a testing site is only done at the scene, comprising a data processing terminal notebook computer of wireless network card (as contain), a static load test instrument, 4 displacement transducers, 1 pressure transducer, the output terminal of displacement transducer is connected with the displacement signal input end of static load test instrument by signal wire, the output terminal of pressure transducer is connected with the pressure signal input end of static load test instrument by signal wire, and the needed power supply of oil pump is that the oil pump power output interface J10 by the static load test instrument provides.A notebook computer and a static load test instrument are formed a LAN (Local Area Network), running test program on the notebook computer, test figure is transferred on the notebook computer by the static load test instrument, test routine on the notebook computer can carry out Treatment Analysis with the data of accepting, be shown to the site test personnel, and send corresponding operational order to the static load test instrument according to being provided with of test, the action of control oil pump, notebook computer can in time be transferred to test detection unit with data by connecting the INTERNET Internet simultaneously.The on-the-spot sensor that uses is for selecting for use: frequency modulation displacement sensor, piezoresistive pressure sensor and radial force transducer; Data processing terminal can adopt notebook computer.
Fig. 8 is the synoptic diagram of using method two, as shown in Figure 8, using method two is the using method when a plurality of testing site is done simultaneously in the scene, comprising a data processing terminal notebook computer of wireless network card (as contain), many static load test instrument, many displacement transducers, many pressure transducers, the output terminal of above-mentioned displacement transducer is connected with the displacement signal input end of data acquisition controller by signal wire, the output terminal of pressure transducer is connected with the pressure signal input end of static load test instrument by signal wire, and the needed power supply of oil pump is that the oil pump power output interface J10 by the static load test instrument provides.Notebook computer and Duo Tai static load test instrument are formed a LAN (Local Area Network), running test program on the notebook computer, test figure is transferred on the notebook computer by many static load test instrument, the data that test routine on the notebook computer can transmit many static load test instrument of accepting are carried out Treatment Analysis, be shown to the site test personnel, and send corresponding operational order to each static load test instrument according to being provided with of test, the action of control oil pump, notebook computer can in time be transferred to test detection unit with data by connecting the INTERNET Internet simultaneously.The on-the-spot sensor that uses is for selecting for use: frequency modulation displacement sensor, piezoresistive pressure sensor and radial force transducer; Data processing terminal can adopt notebook computer.
Fig. 9 is the central processing controller flow chart, as shown in Figure 9, after the start, the central processing controller U0 of static load test instrument is through gathering the signal of each sensor after the initialization, the order of acceptance test processing terminal receipts then transmits the data of gathering, the running status of control oil pump according to order, perhaps gathers the signal of each sensor, wait command again, reciprocation cycle.
The performance parameter of present embodiment static load test instrument is:
1, data transmission
Can reach 200 meters according to the site environment wireless transmission distance
2, pressure test
Pressure test passage: 1 passage
Power test channel: 1 passage
3, displacement measurement
4, load control
Electric oil pump power supply: single-phase 220V, three-phase 380V
Maximum power controlling: 7.5KVA
Below the utility model is described in further details.
The principle of work of the utility model embodiment is: pressure transducer is installed on the working oil path of hydraulic jack, hydraulic jack is connected with high-pressure oil pump by oil pipe, according to the pressure transfer theory, the suffered pressure of lifting jack is consistent with the suffered pressure of pressure transducer; Force transducer is installed on the hydraulic jack, directly measures exerting oneself of lifting jack; The utility model instrument system collects the size of exerting oneself of lifting jack by pressure transducer or force transducer, by static load test instrument control oil pump duty, to reach the purpose of regulating pressure according to testing requirements.Simultaneously by the displacement size of displacement transducer record subjects under the different pressures effect.According to pressure, displacement, time relation in the test, judge by the bearing capacity of test object whether meet design requirement at last according to the relevant regulations of national regulation.
Specifically, displacement transducer signal at first enters 12 displacement signal acquisition interface J6, then through the first filter shape amplifying circuit U1, pass through frequency counting circuit U4 then after, its displacement signal is gathered by central processing controller U0; Pressure sensor signal enters pressure signal acquisition interface J7, and through behind the second filter shape amplifying circuit U2, analog switch U5, the analog to digital conversion circuit U6, its pressure signal is gathered by central processing controller U0 again; After same force sensor signals was passed through force signal acquisition interface J8, the 3rd filter shape amplifying circuit U3, analog switch, analog to digital conversion circuit U6 successively, its force signal was gathered by central processing controller U0; 51 serial central processing controller U0 decide to pressure signal or to force signal by control analog switch U5 and gather.Wireless network components U8 carries out communication by serial ports-network communication signaling conversion circuit U7 and central processing controller U0.The P1 mouth of central processing controller U0 is controlled the duty of oil pump successively by amplifying circuit U9, delay circuit U10 and relay module U11, above central processing controller is selected 51 serial central processing controller for use; Central processing controller also can adopt other serial central processing controller, but corresponding ports and electronic circuit may be adjusted accordingly.
More than though embodiment of the present utility model has been described in conjunction with the accompanying drawings, but those skilled in the art can make various distortion or modification within the scope of the appended claims, for example type conversion of the conversion of the type conversion of central processing controller, interface type, circuit module etc.
Claims (10)
1, a kind of static load test instrument, comprise circuit module, described circuit module comprises power circuit, central processing controller, signal acquisition circuit, the oil pump control circuit, described power circuit comprises the AC power input interface, described signal acquisition circuit, the oil pump control circuit is connected with central processing controller respectively, described signal acquisition circuit comprises the signals collecting interface, described oil pump control circuit comprises the oil pump power output interface, it is characterized in that: also comprise wireless network components in the described circuit module, described wireless network components is connected to the PORT COM of described central processing controller.
2, static load test instrument as claimed in claim 1 is characterized in that: described PORT COM is the serial communication port, is provided with serial ports-network communication signaling conversion circuit between described wireless network components and the described serial communication port.
3, static load test instrument as claimed in claim 1, it is characterized in that: described circuit module also includes wired network interface, and described wired network interface is connected with wireless network components.
4, static load test instrument as claimed in claim 2, it is characterized in that: also comprise casing, described wireless network components comprises wireless network card, wireless router, and wireless network card is connected with serial ports-network communication signaling conversion circuit, wireless router be arranged in the described casing or casing outside.
5, static load test instrument as claimed in claim 1 is characterized in that: described signal acquisition circuit comprises first signal acquisition circuit, secondary signal Acquisition Circuit;
Described first signal acquisition circuit is the displacement signal Acquisition Circuit, described displacement signal Acquisition Circuit comprises displacement signal acquisition interface, the first filter shape amplifying circuit, frequency counting circuit, the signal input part of the described first filter shape amplifying circuit is connected to the displacement signal acquisition interface, the signal input part of described frequency counting circuit is connected with the first filter shape amplifying circuit, and described frequency counting circuit is connected with FPDP, the address port of central processing controller;
Described secondary signal Acquisition Circuit is to gather pressure, the signal acquisition circuit of force signal, described secondary signal Acquisition Circuit comprises the pressure signal acquisition interface, the force signal acquisition interface, the second filter shape amplifying circuit, the 3rd filter shape amplifying circuit, analog switch, analog to digital conversion circuit, the signal input part of the described second filter shape amplifying circuit is connected with the pressure signal acquisition interface, the signal input part of described the 3rd filtering shaping circuit is connected with the force signal acquisition interface, the signal output part of the described second filter shape amplifying circuit, the signal output part of the 3rd filter shape amplifying circuit is connected with analog switch respectively, the signal input part of analog-digital conversion circuit as described is connected with analog switch, the FPDP of analog-digital conversion circuit as described and central processing controller, address port connects.
6, as claim 1 or 2 or 3 or 4 or 5 described static load test instrument, it is characterized in that: described oil pump control circuit comprises amplifying circuit, delay circuit, relay module, the oil pump power output interface, the I/O port of described amplifying circuit and central processing controller is connected, described delay circuit respectively with amplifying circuit, central processing controller connects, the signal controlling end of described relay module is connected with the signal output part of delay circuit, the power input of described relay module is connected with the AC power input interface, and the power output end of described relay module is connected with the oil pump power output interface.
7, as claim 1 or 2 or 3 or 4 or 5 described static load test instrument, it is characterized in that: described AC power input interface is 220V or 380V AC power input interface, described power circuit also comprises alternating current-direct current conversion module, DC/DC translation circuit, described AC power input interface is connected with the alternating current-direct current conversion module, and the dc voltage output end of described alternating current-direct current conversion module is connected with the voltage input end of DC/DC translation circuit.
8, static load test instrument as claimed in claim 6 is characterized in that: described circuit module also comprises oil pump hand control switch (S1), and an end of described oil pump hand control switch (S1) is connected with delay circuit, another termination direct supply.
9, static load test instrument as claimed in claim 6, it is characterized in that: described delay circuit comprises the NE555 timer, first resistance (R1), second resistance (R2), the 3rd resistance (R3), first electric capacity (C1), second electric capacity (C2), the 3rd electric capacity (C3), described first resistance (R1) is connected between 2 pin and 8 pin of NE555 timer, described second resistance (R2) is connected between 6 pin and 8 pin of NE555 timer, described the 3rd resistance (R3) is connected between 3 pin and described amplifying circuit of NE555 timer, connect with lead between 6 pin of described NE555 timer and 7 pin, described second electric capacity (C2) is connected between 2 pin and 1 pin of NE555 timer, described first electric capacity (C1) is connected between 1 pin and 7 pin of NE555 timer, 1 pin ground connection of described NE555 timer, 8 pin of described NE555 timer meet direct supply 5V, and 4 pin of described NE555 timer are connected to the I/O port of central processing controller.
10, static load test instrument as claimed in claim 7, it is characterized in that: described DC/DC translation circuit comprises a DC/DC translation circuit, the 2nd DC/DC translation circuit, the DC output end of the one DC/DC translation circuit is connected with the signals collecting interface of signal acquisition circuit, and the DC output end of the 2nd DC/DC translation circuit is connected with the power pins of respective devices in the circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200654157U CN201163223Y (en) | 2008-01-22 | 2008-01-22 | Static load test apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200654157U CN201163223Y (en) | 2008-01-22 | 2008-01-22 | Static load test apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163223Y true CN201163223Y (en) | 2008-12-10 |
Family
ID=40184158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200654157U Expired - Fee Related CN201163223Y (en) | 2008-01-22 | 2008-01-22 | Static load test apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163223Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174822A (en) * | 2011-03-04 | 2011-09-07 | 安徽省建设工程勘察设计院 | Intelligent dead-loaded instrument |
| CN103712856A (en) * | 2013-11-18 | 2014-04-09 | 国家电网公司 | Mechanical static load performance testing platform of low pressure metering box |
| CN104929163A (en) * | 2015-06-15 | 2015-09-23 | 甘肃省建筑科学研究院 | Foundation compression resistance static load test control system |
-
2008
- 2008-01-22 CN CNU2008200654157U patent/CN201163223Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174822A (en) * | 2011-03-04 | 2011-09-07 | 安徽省建设工程勘察设计院 | Intelligent dead-loaded instrument |
| CN103712856A (en) * | 2013-11-18 | 2014-04-09 | 国家电网公司 | Mechanical static load performance testing platform of low pressure metering box |
| CN104929163A (en) * | 2015-06-15 | 2015-09-23 | 甘肃省建筑科学研究院 | Foundation compression resistance static load test control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081210 Termination date: 20110122 |