CN106370316B - A kind of hydraulic system platinum resistance formula temperature sensor and its application method - Google Patents
A kind of hydraulic system platinum resistance formula temperature sensor and its application method Download PDFInfo
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- CN106370316B CN106370316B CN201610945655.5A CN201610945655A CN106370316B CN 106370316 B CN106370316 B CN 106370316B CN 201610945655 A CN201610945655 A CN 201610945655A CN 106370316 B CN106370316 B CN 106370316B
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 117
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 77
- 238000009434 installation Methods 0.000 claims abstract description 53
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 230000011664 signaling Effects 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000003321 amplification Effects 0.000 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000001931 thermography Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/183—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer characterised by the use of the resistive element
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of hydraulic system platinum resistance formula temperature sensors and its application method, the temperature sensor includes threeway measuring nose and signal boxcar, threeway measuring nose includes three-way pipe and temperature sensing part, temperature sensing part includes cylinder bearing and platinum resistance, signal boxcar includes that shell, signal wire interface and signaling conversion circuit plate, installation operation are convenient；The application method includes step：One, the position to be installed of temperature sensor；Two, judge whether to measure liquid in be measured section of fluid pressure line temperature into trip temperature；Three, temperature sensing part is installed；Four, the installation site and setting angle of signal boxcar are determined；Five, fluid temperature in be measured section of fluid pressure line temperature is measured；Six, in be measured section of fluid pressure line temperature fluid temperature data transmission.Temperature sensing part is mounted in three-way pipe directly with measurement liquid contact thermography by the present invention, is replaced simply, and signal boxcar can also be detached with three-way pipe fixation, using flexible, be measured accurate.
Description
Technical field
The invention belongs to hydraulic system thermometry fields, and in particular to a kind of hydraulic system platinum resistance formula temperature sensing
Device and its application method.
Background technology
Hydraulic system temperature sensor is common to be controlled with hydraulic system into trip temperature, common hydraulic system temperature sensor
Mostly contact type temperature sensor, contact type temperature sensor include thermocouple temperature sensor and Resistance Temperature sensing
Device, there are two types of this kind of temperature sensor mounting means, the first mounting means：Artificial interrupts pipeline, increases pipe fitting peace
Temperature sensor is filled, impression part is directly invaded and experiences oil liquid temperature in fluid, this temperature measurement method is accurate, but needs
System or element make corresponding change, destroy original circuit design, change hydraulic plumbing system resistance state, could install such
Temperature sensor；Second of mounting means：It is integrated with certain Hydraulic Elements, it is such as integrated with hydraulic oil container, but installation site is limited,
Most of pipeline, element can not advance integrated with it in hydraulic system；In addition, platinum resistance used at present and thermojunction type temperature
Spend sensor when mounted, once installation, cannot change position, system is interior if you need to increase temperature sensor quantity, it is necessary to weight
It is new to interrupt pipeline, or sensor mounting location is redesigned, cause follow-up test rack to change.Another kind of temperature sensor is
Non-contact temperature sensor is typically patch type temperature sensor, and hydraulic tube is affixed on by part is experienced using special bonding agent
Road outer wall, it is easy for installation, but due to impression be pipeline outer wall temperature, so temperature measurement accuracy is low.Therefore, nowadays lack
A kind of hydraulic system simple in structure, small, at low cost, reasonable design is with platinum resistance formula temperature sensor and its user
Method, it is only necessary at the pipeline position for needing collecting temperature information, installation inventive sensor is changed in original installation free flow coupling
, do not change original pipeline inherent characteristic, do not turn off pipeline, when needing to measure privileged site temperature, directly by temperature-sensitive portion
Part is installed into pre-buried three-way connection, and installation flexibility greatly enhances.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of hydraulic system
It is novel in design reasonable with platinum resistance formula temperature sensor, temperature sensing part is mounted in three-way pipe and is directly connect with measurement liquid
Thermometric is touched, is replaced simply, signal boxcar can also be detached with three-way pipe fixation, using flexible, be measured accurately, convenient for promoting
It uses.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of hydraulic system platinum resistance formula temperature
Sensor, it is characterised in that：Include threeway measuring nose on fluid pressure line and on hydraulic system holder and
The signal boxcar being connect with the threeway measuring nose, the threeway measuring nose include three that both ends are connected to fluid pressure line
The third pipeline of siphunculus and the temperature sensing part being arranged in the third pipeline of three-way pipe, three-way pipe is equipped with flange installation part outside,
The temperature sensing part includes cylinder bearing and on cylinder bearing and extend into the platinum resistance of fluid pressure line center line, cylinder
Bearing is threadedly coupled with flange installation part；Signal boxcar includes shell, setting signal wire interface on the housing and peace
Signaling conversion circuit plate in the shell, the signaling conversion circuit plate are fixed on the shell by circuit board support
Madial wall on, signal wire interface is electrically connected with signaling conversion circuit plate, and cylinder rest base is concave inward structure, and platinum resistance passes through
Signal wire is connect with signaling conversion circuit plate.
A kind of above-mentioned hydraulic system platinum resistance formula temperature sensor, it is characterised in that：The signal boxcar also wraps
Attachment lug is included, the attachment lug welding is on the housing.
A kind of above-mentioned hydraulic system platinum resistance formula temperature sensor, it is characterised in that：The three-way pipe and hydraulic tube
The both ends of road connection are HB4-1993 series of adapters.
A kind of above-mentioned hydraulic system platinum resistance formula temperature sensor, it is characterised in that：The platinum resistance is welded on circle
On pillar support.
A kind of above-mentioned hydraulic system platinum resistance formula temperature sensor, it is characterised in that：It wears one end of the signal wire
It crosses cylinder bearing to connect with platinum resistance, the other end of signal wire is connect across the shell with signaling conversion circuit plate.
A kind of above-mentioned hydraulic system platinum resistance formula temperature sensor, it is characterised in that：The appearance of the cylinder bearing
Face vehicle has a HB4 series of external screw threads, and flange installation part is got on the bus the HB4 series internal threads for having and coordinating with the HB4 series of external screw threads.
A kind of above-mentioned hydraulic system platinum resistance formula temperature sensor, it is characterised in that：The signaling conversion circuit plate
On be integrated with sequentially connected resistance-voltage conversion circuit, signal amplification circuit and filter circuit.
Meanwhile that the invention also discloses a kind of method and steps is simple, reasonable design, can accurately measure liquid in fluid pressure line
Temperature reduces leakage possibility, reduces the hydraulic system platinum resistance formula temperature sensor application method of sensor signal interference,
It is characterized in that the application method includes the following steps：
Step 1: the position to be installed of temperature sensor：To be measured section of temperature on fluid pressure line is determined, by three-way pipe
Access to be measured section of fluid pressure line temperature, the mounting flange installation part outside the third pipeline of three-way pipe, using aviation plug and method
Blue installation part screw-thread fit blocks the third pipeline of three-way pipe；
Step 2: judging whether to measure liquid in be measured section of fluid pressure line temperature into trip temperature：Liquid is measured when determining
When pressing fluid temperature in be measured section of line temperature, step 3 is executed；Otherwise, aviation plug in step 1 is kept to be installed with flange
Part screw-thread fit blocks the third pipeline of three-way pipe；
Step 3: installation temperature sensing part：Aviation plug in step 1 is removed, then the cylinder branch that platinum resistance will be equipped with
Seat blocks the third pipeline of three-way pipe with flange installation part screw-thread fit, meanwhile, draw signal wire in cylinder rest base；
Step 4: determining the installation site and setting angle of signal boxcar：The liquid of three-way pipe is installed in step 1
The installation site that signal boxcar is determined around to be measured section of line temperature is pressed, when to be measured section of surrounding of fluid pressure line temperature exists
When can accommodate the position of signal boxcar, step 401 is executed；When there is no can accommodate letter to be measured section of surrounding of fluid pressure line temperature
When the position of number boxcar, step 402 is executed；
Step 401, the setting angle for adjusting signal boxcar ensure that signal wire interface is not blocked, will be in step 3
Signal wire extend into the shell and is electrically connected with signaling conversion circuit plate, and the flange installation part in step 3 is consolidated by screw
Signal boxcar is fixed on to be measured section of fluid pressure line temperature by Dingan County on the shell of signal boxcar by attachment lug
On the hydraulic system holder of surrounding；
Step 402, signal boxcar and three-way pipe is separately installed, the lookup signal boxcar on hydraulic system holder
Installation site and signal boxcar is fixedly mounted in the setting angle for adjusting signal boxcar, according to signal boxcar and three-way pipe
Relative distance extends signal wire；
Step 5: measuring fluid temperature in be measured section of fluid pressure line temperature：By extending into fluid pressure line center line
Platinum resistance acquires fluid temperature in be measured section of fluid pressure line temperature, and the resistance value of platinum resistance output turns through signaling conversion circuit plate
It is changed to the identifiable voltage signal of host computer；
Step 6: in be measured section of fluid pressure line temperature fluid temperature data transmission：Coordinate using with signal wire interface
Data line, by the voltage signal obtained in step 5 through signal wire interface remote transmission to monitoring in indoor host computer.
Compared with the prior art, the present invention has the following advantages：
1, the hydraulic system that the present invention uses is straight-through by original installation with threeway measuring nose in platinum resistance formula temperature sensor
Pipe fitting is changed to installation three-way pipe, does not change original pipeline inherent characteristic, realizes that contact is surveyed by installing temperature sensing part
Temperature, high certainty of measurement, the cylinder rest base milling in temperature sensing part is concave inward structure, is on the one hand subtracted to temperature sensor
Weight, on the other hand passes through convenient for signal wire, convenient for promoting the use of.
2, the hydraulic system platinum resistance formula design for temperature sensor that the present invention uses has signal boxcar, signal boxcar
Can be fixedly installed togather use with threeway measuring nose, and use can be also detached with threeway measuring nose, flexible and changeable, and signal
It is the accessible voltage signal of host computer that threeway measuring nose can be acquired the resistance data variation come by boxcar, reliable and stable,
High certainty of measurement, using effect are good.
3, the hydraulic system that the present invention uses is new reasonable with the application method of platinum resistance formula temperature sensor, according to reality
Site environment installs and uses the temperature sensor, judges whether to survey liquid in be measured section of fluid pressure line temperature into trip temperature
Amount blocks three-way pipe when that need not measure fluid temperature data in be measured section of fluid pressure line temperature using aviation plug；When
When measuring fluid temperature data in be measured section of fluid pressure line temperature, aviation plug pair three is replaced using threeway measuring nose
Siphunculus block and thermometric, and integrated structure can be used in temperature sensor, can also use separate structure, position spirit
It is living.
4, the hydraulic system that the present invention uses is simple with the application method step of platinum resistance formula temperature sensor, reasonable design
And realize that conveniently, input cost is low.
It is simple in structure in conclusion the present invention is novel in design rationally, by temperature sensing part be mounted in three-way pipe directly with survey
Quantity of fluid contact thermography is replaced simply, and signal boxcar can also be detached with three-way pipe fixation, using flexible, is measured accurately,
Convenient for promoting the use of.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of present hydraulic system platinum resistance formula temperature sensor.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the A-A sectional views of Fig. 2.
Fig. 4 is the structural schematic diagram of threeway measuring nose in present hydraulic system platinum resistance formula temperature sensor.
Fig. 5 is the flow diagram of present hydraulic system platinum resistance formula temperature sensor application method.
Reference sign:
1-three-way pipe；2-flange installation parts；3-signal boxcars；
4-signal wire interfaces；5-attachment lugs；6-cylinder bearings；
7-platinum resistance；8-signal wires；10-signaling conversion circuit plates；
11-circuit board supports.
Specific implementation mode
As shown in Figure 1, Figure 2 and Figure 3, a kind of hydraulic system of the present invention platinum resistance formula temperature sensor, including
It threeway measuring nose on fluid pressure line and is connect on hydraulic system holder and with the threeway measuring nose
Signal boxcar 3, the threeway measuring nose include the three-way pipe 1 that both ends are connected to fluid pressure line and be arranged in three-way pipe 1
Third pipeline in temperature sensing part, flange installation part 2 is installed outside the third pipeline of three-way pipe 1, the temperature sensing part includes
Cylinder bearing 6 and on cylinder bearing 6 and it is extend into the platinum resistance 7 of fluid pressure line center line, cylinder bearing 6 is pacified with flange
Piece installing 2 is threadedly coupled；Signal boxcar 3 includes shell, signal wire interface 4 on the housing is arranged and is mounted on described outer
Signaling conversion circuit plate 10 in shell, the signaling conversion circuit plate 10 are fixed on by circuit board support 11 in the shell
On side wall, signal wire interface 4 is electrically connected with signaling conversion circuit plate 10, and 6 bottom of cylinder bearing is concave inward structure, and platinum resistance 7 is logical
Signal wire 8 is crossed to connect with signaling conversion circuit plate 10.
In the present embodiment, the both ends that the three-way pipe 1 is connected to fluid pressure line are HB4-1993 series of adapters.
In the present embodiment, the platinum resistance 7 is welded on cylinder bearing 6, ensures the intensity and leakproofness of platinum resistance 7.
In the present embodiment, one end of the signal wire 8 is connect across cylinder bearing 6 with platinum resistance 7, signal wire 8 it is another
End is connect across the shell with signaling conversion circuit plate 10.
In the present embodiment, the outer surface vehicle of the cylinder bearing 6 has a HB4 series of external screw threads, flange installation part 2 get on the bus have with
The HB4 series internal threads of the HB4 series of external screw threads cooperation, it is ensured that thread seal.
In actual use, three-way pipe 1 uses T tube, and 180 ° of both ends connect with fluid pressure line each other in T tube
It is logical, free flow coupling is installed instead of original, ensures that liquid normally circulates in hydraulic system, three-way pipe 1 be connected to fluid pressure line two
End is HB4-1993 series of adapters, realize hydraulic system pipeline installation generalization, convenient for safeguard, in T tube mutually
For the third pipeline that the vertical pipeline in 180 ° of both ends is three-way pipe 1, temperature sensing part is mounted in the third pipeline of three-way pipe 1
The fluid temperature in the three-way pipe 1 is flowed through convenient for acquisition, platinum resistance 7 is extend at fluid pressure line position of center line, realizes contact
Formula thermometric；Flange installation part 2 realizes in T tube 180 ° of both ends center line each other using round or rectangular configuration
Centerlines with signal wire interface 4 are 0 °~180 °；The shell of signal boxcar 3 uses electromagnetism interference shell, protection
Signal conversion is not by external environmental interference in signal boxcar 3；6 bottom milling of cylinder bearing in temperature sensing part is concave inward structure,
On the one hand loss of weight is carried out to temperature sensor, on the other hand passed through convenient for signal wire 8；The signaling conversion circuit plate 10 passes through electricity
Road board support 11 is fixed on the madial wall of the shell, is ensured that signaling conversion circuit plate 10 is installed and is stablized, has function of seismic resistance.
As shown in Figure 1, in the present embodiment, the signal boxcar 3 further includes attachment lug 5, and the attachment lug 5 welds
On the housing.
The quantity of attachment lug 5 is multiple, in the present embodiment, designs three attachment lugs 5, meets signal boxcar 3
Stablize installation.
In the present embodiment, sequentially connected resistance-voltage conversion circuit, letter are integrated on the signaling conversion circuit plate 10
Number amplifying circuit and filter circuit.
In actual use, 7 contact of platinum resistance directly acquires fluid temperature in fluid pressure line, the data that platinum resistance 7 obtains
For resistance value, which is transmitted to through signal wire 8 on signaling conversion circuit plate 10, is converted to through resistance-voltage conversion circuit
The accessible voltage signal of host computer, the voltage signal is faint, amplifies the faint voltage signal through signal amplification circuit, just
It is identified in host computer, interference is inevitably had in the processing of voltage signal amplification, and filtered circuit carries out the voltage signal of amplification
Denoising, data processing is accurate, and effect is good.
The application method of a kind of hydraulic system platinum resistance formula temperature sensor as shown in Figure 4, it is characterised in that this makes
Included the following steps with method：
Step 1: the position to be installed of temperature sensor：To be measured section of temperature on fluid pressure line is determined, by three-way pipe
1 access to be measured section of fluid pressure line temperature, the mounting flange installation part 2 outside the third pipeline of three-way pipe 1, using aviation plug with
2 screw-thread fit of flange installation part blocks the third pipeline of three-way pipe 1；
Multiple to be measured sections can be arranged in actual use, on fluid pressure line, with one of them to be measured section in the present embodiment
For, three-way pipe 1 is accessed at the position to be installed of temperature sensor, it is to be measured that practical thermometric need not measure this in real time
Fluid temperature in section can be used aviation plug and be directly threaded into realization closure in flange installation part 2.
Step 2: judging whether to measure liquid in be measured section of fluid pressure line temperature into trip temperature：Liquid is measured when determining
When pressing fluid temperature in be measured section of line temperature, step 3 is executed；Otherwise, aviation plug in step 1 is kept to be installed with flange
2 screw-thread fit of part blocks the third pipeline of three-way pipe 1；
Step 3: installation temperature sensing part：Aviation plug in step 1 is removed, then the cylinder that platinum resistance 7 will be equipped with
Bearing 6 blocks the third pipeline of three-way pipe 1 with 2 screw-thread fit of flange installation part, meanwhile, draw signal in 6 bottom of cylinder bearing
Line 8；
The length of platinum resistance 7 on cylinder bearing 6 reaches at fluid pressure line position of center line, is promoted and measures essence
Degree, while additional pipe flow resistance is not generated.
Step 4: determining the installation site and setting angle of signal boxcar：The liquid of three-way pipe 1 is installed in step 1
The installation site that signal boxcar 3 is determined around to be measured section of line temperature is pressed, when to be measured section of surrounding of fluid pressure line temperature is deposited
When the position of signal boxcar 3 can be accommodated, step 401 is executed；When there is no can hold to be measured section of surrounding of fluid pressure line temperature
Receive signal boxcar 3 position when, execute step 402；
The setting angle of step 401, adjustment signal boxcar 3 ensures that signal wire interface 4 is not blocked, will be in step 3
Signal wire 8 extend into the shell and be electrically connected with signaling conversion circuit plate 10, the flange installation part 2 in step 3 is passed through
Screw is fixedly mounted on the shell of signal boxcar 3, and signal boxcar 3 is fixed on fluid pressure line temperature by attachment lug 5
It spends on the hydraulic system holder around to be measured section；
When around to be measured section of fluid pressure line temperature in the presence of the position that can accommodate signal boxcar 3, by threeway measuring nose
It being installed together with signal boxcar 3, reduces the leakage possibility between platinum resistance 7 and three-way pipe 1, the signal wire 8 used is short,
Internal signal interference is reduced, reduces temperature sensor volume, is easily installed.
Step 402, signal boxcar 3 and three-way pipe 1 is separately installed, the lookup signal boxcar on hydraulic system holder
3 installation site and the setting angle fixed installation signal boxcar 3 for adjusting signal boxcar 3, according to signal boxcar 3 and three
The relative distance of siphunculus 1 extends signal wire 8；
There is no when the position that can accommodate signal boxcar 3 around to be measured section of fluid pressure line temperature, converted according to signal
The relative distance of box 3 and three-way pipe 1 extends signal wire 8, and the shell of signal boxcar 3 uses industrial design, shielding environment electromagnetism
Interference, design mechanical interface insert convenient for signal wire 8.
Step 5: measuring fluid temperature in be measured section of fluid pressure line temperature：By extending into fluid pressure line center line
Platinum resistance 7 acquires fluid temperature in be measured section of fluid pressure line temperature, and the resistance value that platinum resistance 7 exports is through signaling conversion circuit plate
10 are converted to the identifiable voltage signal of host computer；
Step 6: in be measured section of fluid pressure line temperature fluid temperature data transmission：Coordinate using with signal wire interface 4
Data line, by the voltage signal obtained in step 5 through 4 remote transmission of signal wire interface to monitoring in indoor host computer.
In actual installation of the present invention, flange installation part 2 is mounted on letter by the screw of the specifications of GB/T832-1988-CM3 × 6
On number boxcar 3, signal boxcar 3 is encapsulated by the screw of the specifications of GB/T818-2000-M3 × 8, and signal wire interface 4 passes through
The screw of the specifications of GB/T832-1988-CM3 × 6 is mounted on signal boxcar 3, and signaling conversion circuit plate 10 passes through GB/T832-
The screw of the specifications of 1988-CM2.5 × 6 is mounted on circuit board support 11, and signal wire interface 4 is J599/20WB99PN interfaces, is adopted
Standardization and the versatility that component installation is realized with international standard, promote the maintainability of temperature sensor.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.
Claims (6)
1. a kind of hydraulic system application method of platinum resistance formula temperature sensor, which includes installation
Threeway measuring nose on fluid pressure line and the letter being connect on hydraulic system holder and with the threeway measuring nose
Number boxcar (3), the threeway measuring nose include the three-way pipe (1) that both ends are connected to fluid pressure line and are arranged in three-way pipe
(1) the third pipeline of the temperature sensing part in third pipeline, three-way pipe (1) is equipped with flange installation part (2), the temperature-sensitive portion outside
Part includes cylinder bearing (6) and the platinum resistance (7) for being mounted on cylinder bearing (6) and extending into fluid pressure line center line, cylinder
Bearing (6) is threadedly coupled with flange installation part (2)；Signal boxcar (3) includes shell, the signal wire of setting on the housing
Interface (4) and the signaling conversion circuit plate (10) in the shell, the signaling conversion circuit plate (10) pass through circuit
Board support (11) is fixed on the madial wall of the shell, and signal wire interface (4) is electrically connected with signaling conversion circuit plate (10), circle
Pillar support (6) bottom is concave inward structure, and platinum resistance (7) is connect by signal wire (8) with signaling conversion circuit plate (10)；Described three
The both ends that siphunculus (1) is connected to fluid pressure line are HB4-1993 series of adapters；
It is characterized in that：The application method includes the following steps：
Step 1: the position to be installed of temperature sensor：To be measured section of temperature on fluid pressure line is determined, by three-way pipe (1)
To be measured section of fluid pressure line temperature is accessed, it is stifled using aviation in the outer mounting flange installation part (2) of the third pipeline of three-way pipe (1)
Head blocks the third pipeline of three-way pipe (1) with flange installation part (2) screw-thread fit；
Step 2: judging whether to measure liquid in be measured section of fluid pressure line temperature into trip temperature：Hydraulic tube is measured when determining
In to be measured section of road temperature when fluid temperature, step 3 is executed；Otherwise, aviation plug and flange installation part in step 1 are kept
(2) screw-thread fit blocks the third pipeline of three-way pipe (1)；
Step 3: installation temperature sensing part：Aviation plug in step 1 is removed, then the cylinder branch of platinum resistance (7) will be installed
Seat (6) blocks the third pipeline of three-way pipe (1) with flange installation part (2) screw-thread fit, meanwhile, draw in cylinder bearing (6) bottom
Go out signal wire (8)；
Step 4: determining the installation site and setting angle of signal boxcar：The hydraulic pressure of three-way pipe (1) is installed in step 1
The installation site that signal boxcar (3) is determined around to be measured section of line temperature, when to be measured section of surrounding of fluid pressure line temperature is deposited
When the position of signal boxcar (3) can be accommodated, step 401 is executed；When there is no can for be measured section of surrounding of fluid pressure line temperature
When accommodating the position of signal boxcar (3), step 402 is executed；
The setting angle of step 401, adjustment signal boxcar (3) ensures that signal wire interface (4) is not blocked, will be in step 3
Signal wire (8) extend into the shell and be electrically connected with signaling conversion circuit plate (10), by the flange installation part in step 3
(2) it is fixedly mounted on by screw on the shell of signal boxcar (3), it is by attachment lug (5) that signal boxcar (3) are fixed
On the hydraulic system holder around to be measured section of fluid pressure line temperature；
Step 402, signal boxcar (3) and three-way pipe (1) is separately installed, the lookup signal boxcar on hydraulic system holder
(3) installation site and signal boxcar (3) is fixedly mounted in the setting angle for adjusting signal boxcar (3), is converted according to signal
Box (3) and the relative distance of three-way pipe (1) extend signal wire (8)；
Step 5: measuring fluid temperature in be measured section of fluid pressure line temperature：By the platinum electricity for extending into fluid pressure line center line
Fluid temperature in be measured section of fluid pressure line temperature of (7) acquisition is hindered, the resistance value of platinum resistance (7) output is through signaling conversion circuit plate
(10) the identifiable voltage signal of host computer is converted to；
Step 6: in be measured section of fluid pressure line temperature fluid temperature data transmission：Using what is coordinated with signal wire interface (4)
Data line, by the voltage signal obtained in step 5 through signal wire interface (4) remote transmission to monitoring in indoor host computer.
2. a kind of application method of hydraulic system platinum resistance formula temperature sensor described in accordance with the claim 1, feature exist
In：The signal boxcar (3) further includes attachment lug (5), and attachment lug (5) welding is on the housing.
3. a kind of application method of hydraulic system platinum resistance formula temperature sensor described in accordance with the claim 1, feature exist
In：The platinum resistance (7) is welded on cylinder bearing (6).
4. a kind of application method of hydraulic system platinum resistance formula temperature sensor described in accordance with the claim 3, feature exist
In：One end of the signal wire (8) is connect across cylinder bearing (6) with platinum resistance (7), and the other end of signal wire (8) passes through institute
Shell is stated to connect with signaling conversion circuit plate (10).
5. a kind of application method of hydraulic system platinum resistance formula temperature sensor described in accordance with the claim 1, feature exist
In：The outer surface vehicle of the cylinder bearing (6) has HB4 series of external screw threads, and flange installation part (2), which is got on the bus, to be had and HB4 series
The HB4 series internal threads of external screw thread cooperation.
6. a kind of application method of hydraulic system platinum resistance formula temperature sensor described in accordance with the claim 1, feature exist
In：It is integrated with sequentially connected resistance-voltage conversion circuit, signal amplification circuit and filter on the signaling conversion circuit plate (10)
Wave circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945655.5A CN106370316B (en) | 2016-10-26 | 2016-10-26 | A kind of hydraulic system platinum resistance formula temperature sensor and its application method |
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| CN201610945655.5A CN106370316B (en) | 2016-10-26 | 2016-10-26 | A kind of hydraulic system platinum resistance formula temperature sensor and its application method |
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| CN106370316B true CN106370316B (en) | 2018-10-12 |
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