CN106679855A - Apparatus and method of monitoring unidirectional force by means of liquid mixing color changing - Google Patents
Apparatus and method of monitoring unidirectional force by means of liquid mixing color changing Download PDFInfo
- Publication number
- CN106679855A CN106679855A CN201710031509.6A CN201710031509A CN106679855A CN 106679855 A CN106679855 A CN 106679855A CN 201710031509 A CN201710031509 A CN 201710031509A CN 106679855 A CN106679855 A CN 106679855A
- Authority
- CN
- China
- Prior art keywords
- pressure
- colour developing
- developing chamber
- chamber
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/02—Measuring force or stress, in general by hydraulic or pneumatic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses an apparatus and method of monitoring unidirectional force by means of liquid mixing color changing. The apparatus of monitoring unidirectional force by means of liquid mixing color changing includes a bearing mechanism, a hydraulic control valve bank and a display mechanism, wherein the bearing mechanism is arranged at the outside of an anchor pole to be measured or a bolt to be measured; the bearing mechanism includes a cylindrical bearing body and a pressure cavity; the display mechanism is a color displaying cavity; the color displaying cavity is arranged in an annular groove at the outside of the bearing body; the hydraulic control valve bank includes a pressure-reducing valve and a non return valve; and the pressure cavity, the hydraulic control valve bank and the color displaying cavity are correspondingly connected one-to-one. The method of monitoring unidirectional force by means of liquid mixing color changing includes the steps: the bearing mechanism converts the axial force of the anchor pole as hydraulic pressure; and the colored liquid reaches the hydraulic control valve through an oil way in the apparatus after being pressurized; and opening or closing of the valve can be controlled in the corresponding pressure, so that injection and discharge of the liquid in the color displaying cavity can be controlled correspondingly and the color of the liquid in the color displaying cavity can be observed to determine the stress condition of the anchor pole. The apparatus and method of monitoring unidirectional force by means of liquid mixing color changing utilize the sensor to perform mass distribution monitoring for the whole anchoring engineering, and do not need maintenance and management, and do not need special people to perform point inspection, thus having great significance.
Description
Technical field
The present invention relates to a kind of device and method of utilization liquid mixing discoloration monitoring unidirectional force, belong to sensing technology neck
Domain.
Background technology
There are many occasions for needing to monitor or show unidirectional force, the bolt clipping forcee of such as important events, rock in engineering
Anchor pole or anchor cable axle power in geotechnological journey.Can accurately and in time show that these power have very for the safety of job facilities
Important meaning.Traditional unidirectional force monitoring device is divided to two classes, one kind to use power supply, such as strain chip, using the strain of anchor pole
To detect the stress of anchor pole, but due to needing power supply, safety management is complicated.It is another kind of not need power supply, such as fluid pressure type, hydraulic pressure
Formula device for measuring force is shatter-proof, impact resistance, good stability, and offset load resistance is strong, and conventional hydraulic forcemeter is general by hydraulic pressure pressure
Power box and pressure gauge are constituted, and as shown in Figure 10, by observing manometric value come the load that develops the color, but such apparatus structure is complicated,
Manufacture maintenance cost is high, and volume is big, and is difficult reading, unsuitable large-scale use.
Accordingly, it would be desirable to a kind of new monitoring device, both with simple structure, low cost, be adapted to install and use on a large scale
Advantage, also possess shatter-proof, impact resistance, good stability, easily observation and the strong characteristic of offset load resistance.Should by extensive installation
Device, it is possible to achieve people can detect job facilities safety per capita, greatly improves the security performance of job facilities.
Chinese patent ZL94240039.9 discloses one kind and power is changed into pressure by pressure gauge reading by load carrier,
The unidirectional force measuring device of axis force of anchor is drawn by conversion again, such device reading is directly perceived, but is unable to remote monitoring.China
Patent CN201610004373.5 discloses a kind of unidirectional force monitoring device being made up of hydraulic load-equalizing mechanism and display device, should
Load is first born by hydraulic load-equalizing mechanism in device, and realizes that the circumferential homogenization of load, to prevent unbalance loading, shows within the specific limits
The uniform pressure that hydraulic load-equalizing mechanism transmits can be converted into color output by showing device, and the different color of different power correspondences is led to
The different colours of observation display device are crossed to judge unidirectional force, but the apparatus structure is complicated, and manufacture is difficult.Chinese patent
CN201610004375.4 discloses a kind of unidirectional force monitoring device being made up of elastic load balancing mechanism and display device, the device
In load balancing mechanism high resilience and mobility, the uniform load that well can be born device, and display device energy
The uniform pressure that elastic load balancing mechanism is transmitted is converted into color output, list is judged by observing the different colours of display device
Xiang Li.
The content of the invention
The present invention is intended to provide a kind of device and method of utilization liquid mixing discoloration monitoring unidirectional force, it is proposed that Yi Zhongyou
The fluid pressure type unidirectional force monitoring device of load carrier, hydraulic control valve group and indication mechanism composition：Load carrier turns anchor axial force
Fluid pressure is turned to, colored liquid (color is different) reaches pilot operated valve device after being pressurized through the oil circuit in device, then is pressed in correspondence
The closure or openness of control valve under power, you can the injection and discharge of liquid, liquid in observation colour developing chamber in control correspondence colour developing chamber
The color of body is the stressing conditions that can determine whether anchor pole；Unidirectional force suffered by anchor pole is different, and the color shown in colour developing chamber is different.
The invention provides a kind of device of utilization liquid mixing discoloration monitoring unidirectional force, including load carrier, pilot operated valve device
Group and indication mechanism；Load carrier is located at the outside of anchor pole to be measured or bolt, top connection aligning ball pad, bottom attaching nut；
The load carrier includes cylindrical supporting body and pressure chamber, the volume of upper, middle and lower three is provided with supporting body identical
Annular pressure chamber, the liquid of different colours is respectively equipped with the annular pressure chamber, and annular pressure chamber is coaxial with supporting body,
Supporting body inside is anchor pole or bolt, and supporting body inner ring is zigzag structure, and supporting body outer ring is provided with annular groove, the annular
Groove is coaxial with supporting body；
The indication mechanism is colour developing chamber, and colour developing chamber is arranged in the annular groove on the outside of supporting body, is respectively provided with three
Colour developing chamber, each colour developing chamber is the annular chamber of double-layer filmses composition, and the film is made up of transparent elastic material；Three colour developing chambers
It is coaxial with supporting body respectively, circumferentially radially set gradually from inside to outside；
The hydraulic control valve group includes pressure-reducing valve and check valve, and each pressure chamber is individually connected with a hydraulic control valve group respectively,
The hydraulic control valve group other end individually connects a colour developing chamber, i.e.,：Pressure chamber, hydraulic control valve group and colour developing chamber set to connect one to one
Put.
In said apparatus, the supporting body is zigzag structure, the supporting body and anchor pole with the contact surface of annular groove
Or the contact surface of bolt is zigzag structure.
In the present invention, the end face of supporting body sets toothing, and to reduce radial rigidity, the structure is to first, second, the
The end face in three colour developing chambers has radial clamping to act on.
In said apparatus, the hydraulic control valve group is connected with pressure chamber or colour developing chamber by oil circuit, and the oil circuit is supporting body
The pipe-line tank of interior setting.
In said apparatus, the hydraulic control valve group is arranged on the top of supporting body, and hydraulic control valve group is at grade circumferentially
Direction is uniformly arranged, but not on same circumference, the colour developing chamber of the corresponding connection of hydraulic control valve group is on same vertical direction.
In said apparatus, a circle reflective tape is provided with the outside groove of the supporting body.Reflective tape is located at three colour developing chambers
Inner side.
In said apparatus, the bottom of the supporting body annular groove, the i.e. bottom of supporting body are a cyclic spring plate；Colour developing
Chamber upper surface is glued with supporting body top, and lower surface is glued with cyclic spring plate.
In said apparatus, the elastomeric material is makrolon or epoxy resin.
The mounting means of said apparatus：Monitoring device uses punched-type fixed setting method；Monitoring device is overall by carrying
Body, pressure chamber, hydraulic control valve group and colour developing chamber composition.Monitoring device is installed between nut and aligning ball pad, anchor pole or bolt from
Its centre bore runs through, and after nut screwing clamping is used, anchor pole or bolt receive pulling force, and whole device is under pressure.
Monitoring principle of the invention：A monitoring device generally cylindrical-shaped structure, bearing structure is provided with annular groove to reduce
Axial rigidity, makes it produce enough deflections when being pressurized；Closed annular chamber (i.e. pressure chamber) is disposed with inside bearing structure, point
Not Wei First pressure chamber, second pressure chamber, the 3rd pressure chamber, chamber is built with different colours liquid pigment a, b, c；In bearing structure
Uniform three hydraulic control valve groups being made up of pressure-reducing valve and check valve of end face, hydraulic control valve group parameter is set by corresponding requirements；Display machine
Structure is by annular colour developing chamber：First colour developing chamber, the second colour developing chamber, the 3rd colour developing chamber composition.Wherein bearing structure and hydraulic control valve group are led to
The oil circuit crossed inside bearing structure is connected, and colour developing mechanism and hydraulic control valve group are connected also by oil circuit therebetween.Three show
Color chamber is arranged in the annular groove of load carrier, and the bottom of the bottom of annular groove, i.e. supporting body is a cyclic spring plate；It is aobvious
Color chamber upper surface is glued with supporting body top, and lower surface is glued with cyclic spring plate.First is set in first hydraulic control valve group to depressurize
Valve, the first check valve；Second pressure-reducing valve, the second check valve are set in the second hydraulic control valve group；The 3rd is set in 3rd hydraulic control valve group
Pressure-reducing valve, the 3rd check valve.All draw and be provided with annular half slot and (saw in the upper and lower end face of bearing structure excircle and cyclic spring plate
Tooth-shape structure), to reduce radial rigidity, the structure has radial clamping to act on the end face in first, second, third colour developing chamber, from
And have the trend extruded outward all the time to liquid during intracavity liquid is flowed into and is discharged, that is, developing the color chamber substantially can be equivalent
It is a kind of spring energy storage device.When sensor is pressurized, the structure of Low rigidity causes that bogey is produced and deforms enough, now pressure
Cavity volume reduces, and colored liquid is under pressure, and three be uniformly distributed circumferentially combination hydraulic control valve groups, liquid are entered by pipeline
Enter colour developing chamber along pipeline again.Three combination valves can realize that colored liquid sequentially enters or exit colour developing at various pressures
Chamber, the change of different colours is realized by three kinds of combinations of color (be added or subtract each other), represents the different unidirectional forces suffered by anchor pole.
Each colored liquid be combined into the liquid color for coming it is clear, without confusion, irradiate colour developing chamber with light, reflected through reflective tape, use
Eyes conveniently can be observed intuitively, and can realize remote observation.
The invention provides a kind of method of utilization liquid mixing discoloration monitoring unidirectional force, including procedure below：
Anchor pole or bolt strained F are acted on, during F increases, the deformation of monitoring device stand under load, and pressure chamber is pressurized and volume subtracts
It is small, cause respective internal colored liquid to follow oil circuit and flow into respective colour developing chamber；
First stage：0≤p≤p2, wherein p is the fluid pressure in supporting body pressure chamber；
Setting p1Equal to the Opening pressure in the first colour developing chamber, be provided with colored liquid a in the first colour developing chamber, the first colour developing chamber with
First hydraulic control valve group is connected, and the first pressure-reducing valve and the first check valve, p are respectively equipped with the first hydraulic control valve group2It is the first pressure-reducing valve
Maximum working pressure (MWP)；
As 0≤p ＜ p1When, the first pressure-reducing valve keeps logical state but does not work, i.e., do not play depressurization；When pressure is in p1
≤p≤p2When, the first pressure-reducing valve keeps logical state and starts working, but is constantly equal to p by fluid pressure after the first pressure-reducing valve1, therefore
p1≤p≤p2When colored liquid a full of the first colour developing chamber, Show Color state is a, and expression reaches anchor pole or bolt load under pretension condition；
When power F reduces, and pressure p reduces, once there is p≤p1-Δp1, equal sign represents critical condition, wherein Δ p1Represent
Pressure difference when first check valve is opened needed for two ends；Fluid pressure in first colour developing chamber is p1Have little time mutation, first pressure
Fluid pressure in chamber has been p≤p1-Δp1, pressure difference make liquid first colour developing chamber resilient force under start backflow, first
Pressure difference between 2 points of check valve two ends f and e reaches its starting differential pressure Δ p1, therefore the first check valve is opened, in the first colour developing chamber
Liquid flowed back in First pressure chamber through the first check valve rapidly in a short time, now the first pressure-reducing valve also keeps logical state,
But because liquid hinders larger, liquid prioritizing selection is flowed back to through the first check valve, and ensures pressure in transition state：p1-2Δp1≤p≤
p1-Δp1When, the liquid emptying in the first colour developing chamber, total color state is colorless state.The part is reflux state, illustrates pressure
Power reduces the situation of change of process, compared with epimere pressure increase process, the first hydraulic control when being set forth in pressure increase and reducing
The characteristic in loop.
Second stage：p2＜ p≤p4：
Setting p3Equal to the Opening pressure in the second colour developing chamber, be provided with colored liquid b in the second colour developing chamber, the second colour developing chamber with
Second hydraulic control valve group is connected, and the second pressure-reducing valve and the second check valve, p are respectively equipped with the second hydraulic control valve group4It is the second pressure-reducing valve
Maximum working pressure (MWP)；
p2＜ p ＜ p3When state and p1≤p≤p2When state it is identical；
p3≤p≤p4When the second pressure-reducing valve keep logical state and a depressurization；Liquid is by liquid pressure after the second pressure-reducing valve
Power is constantly equal to p3, due to setting p3Equal to the Opening pressure in the second colour developing chamber, therefore p3≤p≤p4When colored liquid b show full of second
Color chamber；Second colour developing chamber reaches color state b, shows that total color state is a+b, and expression reaches anchor pole or bolt yield load；
When power F reduces, and pressure p reduces, once there is p≤p3-Δp2, equal sign represents critical condition, wherein Δ p2Represent
Pressure difference when second check valve is opened needed for two ends；Fluid pressure in second colour developing chamber is p3Have little time mutation, second pressure
Fluid pressure in chamber has been p≤p3-Δp2, pressure difference make liquid second colour developing chamber resilient force under start backflow, second
Pressure difference between 2 points of check valve two ends n and m reaches its starting differential pressure Δ p2, therefore the second check valve is opened, in the second colour developing chamber
Liquid flow back to rapidly in second pressure chamber in a short time, and ensure pressure in transition state：p3-2Δp2≤p≤p3-Δp2
When, the liquid emptying in the second colour developing chamber, total color state is a.The part is reflux state, illustrates that pressure reduces the change of process
Change situation, compared with epimere pressure increase process, the characteristic of the second hydraulic control loop when being set forth in pressure increase and reducing.
Phase III：p4＜ p≤p6：
Setting p5Equal to the Opening pressure in the 3rd colour developing chamber, colored liquid c is provided with the 3rd colour developing chamber, the 3rd colour developing chamber with
3rd hydraulic control valve group is connected, and the 3rd pressure-reducing valve and the 3rd check valve, p are respectively equipped with the 3rd hydraulic control valve group6It is the 3rd pressure-reducing valve
Maximum working pressure (MWP)；
p4＜ p ＜ p5When state and P3≤p≤p4When state it is identical；
p5≤p≤p6When the 3rd pressure-reducing valve keep logical state and a depressurization；But liquid is by liquid after the 3rd pressure-reducing valve
Pressure is constantly equal to p5, due to setting p5Equal to the Opening pressure in the 3rd colour developing chamber, therefore p5≤p≤p6When colored liquid c be full of the 3rd
Colour developing chamber；3rd colour developing chamber reaches color state c, shows that total color state is a+b+c, and expression reaches anchor pole or bolt is disrumpent feelings
Load；
When power F reduces, and pressure p reduces, once there is p≤p5-Δp3, equal sign represents critical condition, wherein Δ p3Represent
Pressure difference when 3rd check valve is opened needed for two ends；Fluid pressure p in 3rd colour developing chamber5Have little time mutation, the 3rd pressure chamber
Interior fluid pressure has been p≤p5-Δp3, pressure difference makes liquid start backflow under the resilient force in the 3rd colour developing chamber, and the 3rd is single
Its starting differential pressure Δ p is reached to the pressure difference between 2 points of valve two ends q and o3, therefore the 3rd check valve is opened, in the 3rd colour developing chamber
Liquid is flowed back to rapidly in the 3rd pressure chamber in a short time, and ensures pressure in transition state：p5-2Δp3≤p≤p5-Δp3
When, the liquid emptying in the 3rd colour developing chamber, total color state is a+b.The part is reflux state, illustrates that pressure reduces process
Situation of change, compared with epimere pressure increase process, the characteristic of the 3rd hydraulic control loop when being set forth in pressure increase and reducing.
Beneficial effects of the present invention：
(1) by implementation of the invention, the discoloration display of anchor pole power in-situ liquid is realized, i.e., the color of sensor can be according to anchor
The size of stick force and change, the different colors of different anchor pole power correspondences；
(2) reflective tape that the present invention is set has enhancing reflecting effect, can realize long distance by head lamp or other light sources
From efficiently observation；
(3) whole anchoring engineering magnanimity can be layouted monitoring using the sensor, Maintenance free management, without special messenger's point
Inspection, people can turn into security official per capita, have highly important meaning to the construction quality management and safety in production of suspension roof support engineering
Justice；
(4) monitoring of suspension roof support quality, conventional maintenance and mine safety production to suspension roof support engineering have very
Important meaning：Anchor pole power is monitored for monitoring surrouding rock stress, it is to avoid top board (country rock) collapse and cave-in and offer roof timbering ginseng
Number, roof safety monitoring provides reliable technical parameter；Simultaneously for colliery engineering technical staff and testing staff provide determination anchor
The length of bar, tensile strength, understand using anchor pole, the reasonability of anchor cable, economy and the scientific basis that needs so that effectively
The generation for preventing top board slump accident, it is ensured that Safety of Coal Mine Production.
Brief description of the drawings
Fig. 1 is the scheme of installation of monitoring device of the present invention.
Fig. 2 is the top view of monitoring device of the present invention.
Fig. 3 is the profile of the line A-A along Fig. 2.
Fig. 4 is the profile of the line B-B along Fig. 2.
Fig. 5 is monitoring device stress-displaying principle figure (original state and 0≤p ＜ p1When state).
Fig. 6 is valve group enlarged diagram during pressure change (by taking the first pressure-reducing valve as an example).
Fig. 7 is p1≤p≤p2When view.
Fig. 8 is p3≤p≤p4When view.
Fig. 9 is p5≤p≤p6When view.
Figure 10 is hydraulic forcemeter schematic diagram in the prior art.
In figure：1- pallets；2- aligning ball pads；3- pressure chambers；4- colour developings chamber；5- nuts；6- supporting bodies；7- anchor poles；8- is anti-
Light belt；9- hydraulic control valve groups；10- rock mass；11- pressure gauges；12- connectors；13- upper shells；14- lower houses；15- packing rings；16- liquid
Body；31 is First pressure chamber, and 32 is second pressure chamber, and 33 is the 3rd pressure chamber；41 is the first colour developing chamber, and 42 is the second colour developing
Chamber, 43 is the 3rd colour developing chamber；91 is the first hydraulic control valve group, and 92 is the second hydraulic control valve group, and 93 is the 3rd hydraulic control valve group；911 is
One pressure-reducing valve, 921 is the second pressure-reducing valve, and 931 is the 3rd pressure-reducing valve；912 is the first check valve, and 922 is the second check valve, 932
It is the 3rd check valve.
Specific embodiment
The present invention is further illustrated below by embodiment, but is not limited to following examples.
Embodiment：By taking anchor pole as an example, implementation process of the invention is illustrated：
As shown in figures 1-4, a kind of device of utilization liquid mixing discoloration monitoring unidirectional force, including load carrier, pilot operated valve device
Group and indication mechanism；Load carrier is located at the outside of anchor pole to be measured or bolt, top connection aligning ball pad, bottom attaching nut；
The load carrier includes cylindrical supporting body 6 and pressure chamber 3, and the volume of upper, middle and lower three is provided with supporting body 6
The liquid of different colours, and annular pressure chamber 3 and carrying are respectively equipped with identical annular pressure chamber 3, the annular pressure chamber 3
Body 6 is coaxial, and the inside of supporting body 6 is anchor pole 7, and the inner ring of supporting body 6 is zigzag structure, and the outer ring of supporting body 6 is provided with annular groove,
The annular groove is coaxial with supporting body；
The indication mechanism is colour developing chamber 4, and colour developing chamber is arranged in the annular groove in the outside of supporting body 6, is respectively provided with three
Individual colour developing chamber 4, each colour developing chamber 4 is the annular chamber of double-layer filmses composition；Three colour developing chambers 4 are coaxial with supporting body 6 respectively, along circle
It is all radially to set gradually from inside to outside；
The hydraulic control valve group 9 includes pressure-reducing valve and check valve, and each pressure chamber 3 individually connects with a hydraulic control valve group 9 respectively
Connect, the other end of hydraulic control valve group 9 individually connects a colour developing chamber 4, i.e.,：Pressure chamber 3, hydraulic control valve group 9 and colour developing chamber 4 are one-to-one corresponding
Connect setting.
In said apparatus, the supporting body 6 is zigzag structure, the supporting body 6 and anchor with the contact surface of annular groove
The contact surface of bar 7 is zigzag structure.
In the present invention, the end face of supporting body sets toothing, and to reduce radial rigidity, the structure is to first, second, the
The end face in three colour developing chambers has radial clamping to act on.
In said apparatus, the hydraulic control valve group 9 is connected with pressure chamber 3 or colour developing chamber 4 by oil circuit, and the oil circuit is carrying
The pipe-line tank for setting in vivo.
In said apparatus, the hydraulic control valve group 9 is arranged on the top of supporting body 6, and hydraulic control valve group 9 is at grade along circle
Circumferential direction is uniformly arranged, but not on same circumference, the colour developing chamber of the corresponding connection of hydraulic control valve group is on same vertical direction.
In said apparatus, a circle reflective tape 8 is provided with the annular groove in the outside of the supporting body 6.Reflective tape 8 is located at three
The inner side in colour developing chamber.
In said apparatus, the film is made up of epoxy resin or polycarbonate transparent elastomeric material.
The mounting means of said apparatus：Monitoring device uses punched-type fixed setting method；Monitoring device is overall by carrying
Body 6, pressure chamber 3, hydraulic control valve group 9 and colour developing chamber 4 constitute.Monitoring device is installed between nut 5 and aligning ball pad 2, anchor pole 7 from
Its centre bore runs through, and after being tightened with nut 5, anchor pole 7 receives pulling force, and whole device is under pressure.
Monitoring principle of the invention：A monitoring device generally cylindrical-shaped structure, bearing structure is provided with annular groove to reduce
Axial rigidity, makes it produce enough deflections when being pressurized；Closed annular chamber (i.e. pressure chamber) is disposed with inside bearing structure, point
Not Wei First pressure chamber, second pressure chamber, the 3rd pressure chamber, chamber is built with different colours liquid pigment a, b, c；In bearing structure
Uniform three hydraulic control valve groups being made up of pressure-reducing valve and check valve of end face, hydraulic control valve group parameter is set by corresponding requirements；Display machine
Structure is by annular colour developing chamber：First colour developing chamber, the second colour developing chamber, the 3rd colour developing chamber composition.Wherein bearing structure and hydraulic control valve group are led to
The oil circuit crossed inside bearing structure is connected, and colour developing mechanism and hydraulic control valve group are connected also by oil circuit therebetween.Three show
Color chamber is arranged in the annular groove of load carrier, and the bottom of the bottom of annular groove, i.e. supporting body is a cyclic spring plate；It is aobvious
Color chamber upper surface is glued with supporting body top, and lower surface is glued with cyclic spring plate.First is set in first hydraulic control valve group to depressurize
Valve, the first check valve；Second pressure-reducing valve, the second check valve are set in the second hydraulic control valve group；The 3rd is set in 3rd hydraulic control valve group
Pressure-reducing valve, the 3rd check valve.All draw and be provided with annular half slot and (saw in the upper and lower end face of bearing structure excircle and cyclic spring plate
Tooth-shape structure), to reduce radial rigidity, the structure has radial clamping to act on the end face in first, second, third colour developing chamber, from
And have the trend extruded outward all the time to liquid during intracavity liquid is flowed into and is discharged, that is, developing the color chamber substantially can be equivalent
It is a kind of spring energy storage device.When sensor is pressurized, the structure of Low rigidity causes that bogey is produced and deforms enough, now pressure
Cavity volume reduces, and colored liquid is under pressure, and three be uniformly distributed circumferentially combination hydraulic control valve groups, liquid are entered by pipeline
Enter colour developing chamber along pipeline again.Three combination valves can realize that colored liquid sequentially enters or exit colour developing at various pressures
Chamber, the change of different colours is realized by three kinds of combinations of color (be added or subtract each other), represents the different unidirectional forces suffered by anchor pole.
Each colored liquid be combined into the liquid color for coming it is clear, without confusion, irradiate colour developing chamber with light, reflected through reflective tape, use
Eyes conveniently can be observed intuitively, and can realize remote observation.
Principle of the invention schematic diagram is as shown in figure 5, when sensor pressure changes, fluid pressure can be therewith in pressure chamber
It is raised and lowered, the break-make of being turned on and off for valve, i.e. oil circuit is realized by different pressure, it is final to realize being filled in colour developing chamber
Full or emptying liquid.
I.e. when rockbolt stress, the monitoring device between nut and fixture can be acted on by power F, power F
Cause the deformation of monitoring device, so that the liquid in device First pressure chamber 31, second pressure chamber 32, the 3rd pressure chamber 33
Be under pressure P and P synchronously increase or reductions.Three pressure chamber size all sames, the liquid volume in it is identical but face of liquid
Color is different.Pressure ascent stage is positive process, and liquid flow direction order is pressure chamber-pressure-reducing valve-colour developing chamber；Pressure declines
Stage is reverse process, and liquid flow direction is colour developing chamber-check valve-pressure chamber.The action of valve and oil circuit break-make are by pressure chamber
Fluid pressure size is controlled.Decompression valve outlet pressure according to design parameter set up, the first pressure-reducing valve 911, the second pressure-reducing valve 921,
The set pressure of 3rd pressure-reducing valve 931 increases step by step.Therefore, pressure ascent stage colour developing chamber is the first colour developing chamber 41- full of order
The second colour developing colour developings of chamber 42- the 3rd chamber 43.Because pressure chamber fluid pressure disconnects more than pressure-reducing valve set pressure rear oil duct, therefore colour developing
Chamber Opening pressure magnitude relationship the 3rd develops the color the colour developing colour developings of chamber ＞ first of chamber ＞ second chamber, and colour developing chamber is the elastic cavity for having pretightning force
(spring energy storage device), the first check valve 912, the second check valve 922, the 3rd check valve 932 open front and rear pressure difference unanimously, and oil circuit is
No break-make is controlled by chamber of developing the color with pressure chamber difference, therefore pressure drop phase colour developing chamber is faded, order is the 3rd colour developing chamber-the second
Colour developing chamber-the first colour developing chamber.
Present invention decompression valve characteristic：
The start-up operation pressure of the first pressure-reducing valve is p1, maximum working pressure (MWP) is p2；The start-up operation pressure of the second pressure-reducing valve
It is p3, maximum working pressure (MWP) is p4；The start-up operation pressure of the 3rd pressure-reducing valve is p5, maximum working pressure (MWP) is p6；
When pressure in oil circuit does not arrive the start-up operation pressure of pressure-reducing valve, pressure-reducing valve keeps channel status, but valve element not work
Make, i.e., do not play depressurization；When pressure in oil circuit is between the start-up operation pressure and maximum working pressure (MWP) of pressure-reducing valve, decompression
Valve works and keeps channel status；When pressure in oil circuit is more than the maximum working pressure (MWP) of pressure-reducing valve, pressure-reducing valve closure does not rise and subtracts
Pressure is acted on, and hinders liquid to pass through.By taking the first pressure-reducing valve as an example, as shown in Fig. 6 valve group enlarged diagrams.Second pressure-reducing valve, the 3rd
Pressure-reducing valve is similarly.
Unidirectional valve characteristic of the invention：
The Opening pressure of the first check valve 912, i.e. liquid from f flow to e when f, e between pressure difference lower limit be Δ p1；The
The Opening pressure of two check valves 922, i.e. liquid from n flow to m when n, m between pressure difference lower limit be Δ p2；3rd check valve 932
Opening pressure, i.e., liquid from q flow to o when q, o between pressure difference lower limit be Δ p3；Δp1、Δp2With Δ p3It is much smaller than p1。
Present invention colour developing chamber characteristic：
The Opening pressure in the first colour developing chamber 41 is f1/ A, A are the cross-sectional area of colour developing chamber plunger；Open in the second colour developing chamber 42
Pressure is opened for f2/ A, A are the cross-sectional area of colour developing chamber plunger；The Opening pressure in the 3rd colour developing chamber 43 is f3/ A, A are colour developing chamber post
The cross-sectional area of plug；
The magnitude relationship of above power is：
0<p1-Δp1<p1=f1/A<p2<p3-Δp2；
p3-Δp2<p3=f2/A<p4<p5-Δp3；
p5-Δp3<p5=f3/A<p6。
Using the implementation of the device of liquid mixing discoloration monitoring unidirectional force, including procedure below：
Anchor pole or bolt strained F are acted on, during F increases, the deformation of monitoring device stand under load, and pressure chamber is pressurized and volume subtracts
It is small, cause respective internal colored liquid to follow oil circuit and flow into respective colour developing chamber；
First stage：0≤p≤p2, wherein p is the fluid pressure in supporting body pressure chamber；
Setting p1Equal to the Opening pressure in the first colour developing chamber, be provided with colored liquid a in the first colour developing chamber, the first colour developing chamber with
First hydraulic control valve group is connected, and the first pressure-reducing valve and the first check valve, p are respectively equipped with the first hydraulic control valve group2It is the first pressure-reducing valve
Maximum working pressure (MWP)；
As 0≤p ＜ p1When, the first pressure-reducing valve keeps logical state but does not work, i.e., do not play depressurization；As shown in Figure 5.
When pressure is in p1≤p≤p2When, the first pressure-reducing valve keeps logical state and starts working, but by the first pressure-reducing valve
Fluid pressure is constantly equal to p afterwards1, therefore p1≤p≤p2When colored liquid a full of the first colour developing chamber, Show Color state is a, and expression reaches
To anchor pole or bolt load under pretension condition；As shown in Figure 7.
When power F reduces, and pressure p reduces, once there is p≤p1-Δp1(Δp1Two ends when representing that the first check valve is opened
Required pressure difference), equal sign represents critical condition, and the fluid pressure in the first colour developing chamber is p1Have little time mutation, First pressure chamber
Interior fluid pressure has been p≤p1-Δp1, pressure difference makes liquid start backflow under the resilient force in the first colour developing chamber, and first is single
Its starting differential pressure Δ p is reached to the pressure difference between 2 points of valve two ends f and e1, therefore the first check valve is opened, in the first colour developing chamber
Liquid is flowed back in First pressure chamber rapidly through the first check valve in a short time, and now the first pressure-reducing valve also keeps logical state, but
Because liquid hinders larger, liquid prioritizing selection is flowed back to through the first check valve, and ensures pressure in transition state：p1-2Δp1≤p≤
p1-Δp1When, the liquid emptying in the first colour developing chamber, total color state is colorless state.The part is reflux state, illustrates pressure
Power reduces the situation of change of process, compared with epimere pressure increase process, the first hydraulic control when being set forth in pressure increase and reducing
The characteristic in loop.
Second stage：p2＜ p≤p4：
Setting p3Equal to the Opening pressure in the second colour developing chamber, be provided with colored liquid b in the second colour developing chamber, the second colour developing chamber with
Second hydraulic control valve group is connected, and the second pressure-reducing valve and the second check valve, p are respectively equipped with the second hydraulic control valve group4It is the second pressure-reducing valve
Maximum working pressure (MWP)；
p2＜ p ＜ p3When state and p1≤p≤p2When state it is identical；As shown in Figure 7.
p3≤p≤p4When the second pressure-reducing valve keep logical state and a depressurization；Liquid is by liquid pressure after the second pressure-reducing valve
Power is constantly equal to p3, due to setting p3Equal to the Opening pressure in the second colour developing chamber, therefore p3≤p≤p4When colored liquid b be full of second
Colour developing chamber；Second colour developing chamber reaches color state b, shows that total color state is a+b, and expression reaches anchor pole or bolt surrender is carried
Lotus；As shown in Figure 8.
When power F reduces, and pressure p reduces, once there is p≤p3-Δp2(Δp2Two ends when representing that the second check valve is opened
Required pressure difference), equal sign represents critical condition, and the fluid pressure in the second colour developing chamber is p3Have little time mutation, second pressure chamber
Interior fluid pressure has been p≤p3-Δp2, pressure difference makes liquid start backflow under the resilient force in the second colour developing chamber, and second is single
Its starting differential pressure Δ p is reached to the pressure difference between 2 points of valve two ends n and m2, therefore the second check valve is opened, in the second colour developing chamber
Liquid is flowed back to rapidly in second pressure chamber in a short time, and ensures pressure in transition state：p3-2Δp2≤p≤p3-Δp2
When, the liquid emptying in the second colour developing chamber, total color state is a.The part is reflux state, illustrates that pressure reduces the change of process
Change situation, compared with epimere pressure increase process, the characteristic of the second hydraulic control loop when being set forth in pressure increase and reducing.
Phase III：p4＜ p≤p6：
Setting p5Equal to the Opening pressure in the 3rd colour developing chamber, colored liquid c is provided with the 3rd colour developing chamber, the 3rd colour developing chamber with
3rd hydraulic control valve group is connected, and the 3rd pressure-reducing valve and the 3rd check valve, p are respectively equipped with the 3rd hydraulic control valve group6It is the 3rd pressure-reducing valve
Maximum working pressure (MWP)；
p4＜ p ＜ p5When state and p3≤p≤p4When state it is identical；As shown in Figure 8.
p5≤p≤p6When the 3rd pressure-reducing valve keep logical state and a depressurization；But liquid is by liquid after the 3rd pressure-reducing valve
Pressure is constantly equal to p5, due to setting p5Equal to the Opening pressure in the 3rd colour developing chamber, therefore p5≤p≤p6When colored liquid c be full of the 3rd
Colour developing chamber；3rd colour developing chamber reaches color state c, shows that total color state is a+b+c, and expression reaches anchor pole or the disrumpent feelings load of bolt
Lotus；As shown in Figure 9.
When power F reduces, and pressure p reduces, once there is p≤p5-Δp3(Δp3Two ends when representing that the 3rd check valve is opened
Required pressure difference), equal sign represents critical condition, the fluid pressure p in the 3rd colour developing chamber5Have little time mutation, in the 3rd pressure chamber
Fluid pressure be p≤p5-Δp3, pressure difference make liquid the 3rd colour developing chamber resilient force under start backflow, the 3rd is unidirectional
Pressure difference between 2 points of valve two ends q and o reaches its starting differential pressure Δ p3, therefore the 3rd check valve is opened, the liquid in the 3rd colour developing chamber
Body is flowed back to rapidly in the 3rd pressure chamber in a short time, and ensures pressure in transition state：p5-2Δp3≤p≤p5-Δp3When,
Liquid emptying in 3rd colour developing chamber, total color state is a+b.The part is reflux state, illustrates that pressure reduces the change of process
Change situation, compared with epimere pressure increase process, the characteristic of the 3rd hydraulic control loop when being set forth in pressure increase and reducing.
The present invention is illustrated below by specific embodiment：
Pressure-reducing valve of the present invention, check valve, the parameter setting in colour developing chamber are shown in Table 1.
The component major parameter table of table 1
Pressure is divided into three phases.In pressure uphill process, it is shown as colourless when not up to the pretension stage, first stage liquid
Direction of flow order is the colour developings of the first pressure-reducing valves of First pressure chamber 31- 911- first chamber 41, and Show Color is a, represents and reaches pretension
Stage；Second stage flow direction order is second pressure chamber the second pressure-reducing valves of 32- the second colour developings of 921- chamber 42, and Show Color is a+b,
Represent and reach yielding stage；Phase III is the pressure-reducing valve 931- of the 3rd pressure chamber 33- the 3rd colour developings chamber 43, and Show Color is a+b+
C, represents and reaches the disrumpent feelings stage；Pressure decline during liquid order for the 3rd the 3rd check valve 932- of colour developing chamber 43- the 3rd are pressed
Power chamber 33, i.e. c colors are first moved back, and are shown as a+b, that is, return yielding stage；Then the second colour developing the second check valves of chamber 42- 922- second
Pressure chamber 32, i.e. b colors have been moved back, and only show a colors, return the pretension stage；Last first colour developing the first check valves of chamber 41- 912- first
Pressure chamber 31, color has been moved back completely, is represented and is not reached the pretension stage.And each stage colour developing intracavity liquid is completely filled with or arranges
Only.Shown in pressure state-monitoring result corresponding table 2.
2 pressure states of table-monitoring result corresponding table
As shown above, during pressure increases and reduces, liquid flow direction, the display face in colour developing chamber in each oil circuit
The stress of color and correspondence anchor pole is very clear.
The color of first pressure intracavity liquid is red in the present embodiment, and the color of second pressure intracavity liquid is green,
The color of the 3rd pressure intracavity liquid is blueness.
The rockbolt stress state of table 3-Show Color corresponding table
Claims (9)
1. the device of unidirectional force is monitored in a kind of utilization liquid mixing discoloration, it is characterised in that：Including load carrier, hydraulic control valve group and
Indication mechanism；Load carrier is located at the outside of anchor pole to be measured or bolt, top connection aligning ball pad, bottom attaching nut；
The load carrier includes cylindrical supporting body and pressure chamber, and the volume identical ring of upper, middle and lower three is provided with supporting body
Shape pressure chamber, is respectively equipped with the liquid of different colours in the annular pressure chamber, and annular pressure chamber is coaxial with supporting body, carries
Internal portion is anchor pole or bolt, and supporting body inner ring is zigzag structure, and supporting body outer ring is provided with annular groove, the annular groove
It is coaxial with supporting body；
The indication mechanism is colour developing chamber, and colour developing chamber is arranged in the annular groove on the outside of supporting body, is respectively provided with three colour developings
Chamber, each colour developing chamber is the annular chamber of double-layer filmses composition, and the film is made up of transparent elastic material；Three colour developing chamber difference
It is coaxial with supporting body, circumferentially radially set gradually from inside to outside；
The hydraulic control valve group includes pressure-reducing valve and check valve, and each pressure chamber is individually connected with a hydraulic control valve group respectively, hydraulic control
The valve group other end individually connects a colour developing chamber, i.e.,：Pressure chamber, hydraulic control valve group and colour developing chamber are the setting that connects one to one.
2. the device of unidirectional force is monitored in utilization liquid mixing discoloration according to claim 1, it is characterised in that：The carrying
Body is zigzag structure with the contact surface of annular groove, and the supporting body is zigzag structure with the contact surface of anchor pole or bolt.
3. the device of unidirectional force is monitored in utilization liquid mixing discoloration according to claim 1, it is characterised in that：The hydraulic control
Valve group is connected with pressure chamber or colour developing chamber by oil circuit, and the oil circuit is the pipe-line tank set in supporting body.
4. the device of unidirectional force is monitored in utilization liquid mixing discoloration according to claim 1, it is characterised in that：The hydraulic control
Valve group is arranged on the top of supporting body, and hydraulic control valve group is along the circumferential direction uniformly arranged at grade, but not in same circumference
On, the colour developing chamber of the corresponding connection of hydraulic control valve group is on same vertical direction.
5. the device of unidirectional force is monitored in utilization liquid mixing discoloration according to claim 1, it is characterised in that：The carrying
A circle reflective tape is provided with the outside groove of body.
6. the device of unidirectional force is monitored in utilization liquid mixing discoloration according to claim 1, it is characterised in that：The carrying
The bottom of the bottom of body annular groove, i.e. supporting body is a cyclic spring plate；Colour developing chamber upper surface is glued with supporting body top, under
End face is glued with cyclic spring plate.
7. the device of unidirectional force is monitored in utilization liquid mixing discoloration according to claim 1, it is characterised in that：The elasticity
Material is makrolon or epoxy resin.
8. a kind of method that unidirectional force is monitored in utilization liquid mixing discoloration, using the utilization liquid described in any one of claim 1~7
The device of body mixing discoloration monitoring unidirectional force, it is characterised in that：The axle power of anchor pole or bolt is converted into liquid pressure by load carrier
Power, colored liquid be pressurized after through in device oil circuit reach pilot operated valve device, then under corresponding pressure control valve closure or openness,
The injection and discharge of liquid in correspondence colour developing chamber are can control, the color of liquid is the stress that can determine whether anchor pole in observation colour developing chamber
Situation；Unidirectional force suffered by anchor pole is different, and the color shown in colour developing chamber is different.
9. the method that unidirectional force is monitored in utilization liquid mixing discoloration according to claim 8, it is characterised in that：Including following
Content：
Anchor pole or bolt strained F are acted on, during F increases, the deformation of monitoring device stand under load, and pressure chamber is pressurized and volume reduces,
Respective internal colored liquid is caused to follow oil circuit and flow into respective colour developing chamber；
First stage：0≤p≤p2, wherein p is the fluid pressure in supporting body pressure chamber；
Setting p1Equal to the Opening pressure in the first colour developing chamber, colored liquid a, the first colour developing chamber and first are provided with the first colour developing chamber
Hydraulic control valve group is connected, and the first pressure-reducing valve and the first check valve, p are respectively equipped with the first hydraulic control valve group2For the first pressure-reducing valve is maximum
Operating pressure；
As 0≤p ＜ p1When, the first pressure-reducing valve keeps logical state but does not work, i.e., do not play depressurization；When pressure is in p1≤p≤
p2When, the first pressure-reducing valve keeps logical state and starts working, but is constantly equal to p by fluid pressure after the first pressure-reducing valve1, therefore p1≤p
≤p2When colored liquid a full of the first colour developing chamber, Show Color state is a, and expression reaches anchor pole or bolt load under pretension condition；
When power F reduces, and pressure p reduces, once there is p≤p1-Δp1, equal sign represents critical condition, wherein Δ p1Represent first
Pressure difference when check valve is opened needed for two ends；Fluid pressure in first colour developing chamber is p1Have little time mutation, in First pressure chamber
Fluid pressure be p≤p1-Δp1, pressure difference make liquid first colour developing chamber resilient force under start backflow, first is unidirectional
Pressure difference between 2 points of valve two ends f and e reaches its starting differential pressure Δ p1, therefore the first check valve is opened, the liquid in the first colour developing chamber
Body is flowed back in First pressure chamber rapidly through the first check valve in a short time, and now the first pressure-reducing valve also keeps logical state, but by
Hinder larger in liquid, liquid prioritizing selection is flowed back to through the first check valve, and ensure pressure in transition state：p1-2Δp1≤p≤p1-
Δp1When, the liquid emptying in the first colour developing chamber, total color state is colorless state；
Second stage：p2＜ p≤p4：
Setting p3Equal to the Opening pressure in the second colour developing chamber, colored liquid b, the second colour developing chamber and second are provided with the second colour developing chamber
Hydraulic control valve group is connected, and the second pressure-reducing valve and the second check valve, p are respectively equipped with the second hydraulic control valve group4For the second pressure-reducing valve is maximum
Operating pressure；
p2＜ p ＜ p3When state and p1≤p≤p2When state it is identical；
p3≤p≤p4When the second pressure-reducing valve keep logical state and a depressurization；Liquid is permanent by fluid pressure after the second pressure-reducing valve
Equal to p3, due to setting p3Equal to the Opening pressure in the second colour developing chamber, therefore p3≤p≤p4When colored liquid b full of the second colour developing
Chamber；Second colour developing chamber reaches color state b, shows that total color state is a+b, and expression reaches anchor pole or bolt yield load；
When power F reduces, and pressure p reduces, once there is p≤p3-Δp2, equal sign represents critical condition, wherein Δ p2Represent second
Pressure difference when check valve is opened needed for two ends；Fluid pressure in second colour developing chamber is p3Have little time mutation, in second pressure chamber
Fluid pressure be p≤p3-Δp2, pressure difference make liquid second colour developing chamber resilient force under start backflow, second is unidirectional
Pressure difference between 2 points of valve two ends n and m reaches its starting differential pressure Δ p2, therefore the second check valve is opened, the liquid in the second colour developing chamber
Body is flowed back to rapidly in second pressure chamber in a short time, and ensures pressure in transition state：p3-2Δp2≤p≤p3-Δp2When,
Liquid emptying in second colour developing chamber, total color state is a；
Phase III：p4＜ p≤p6：
Setting p5Equal to the Opening pressure in the 3rd colour developing chamber, colored liquid c, the 3rd colour developing chamber and the 3rd are provided with the 3rd colour developing chamber
Hydraulic control valve group is connected, and the 3rd pressure-reducing valve and the 3rd check valve, p are respectively equipped with the 3rd hydraulic control valve group6For the 3rd pressure-reducing valve is maximum
Operating pressure；
p4＜ p ＜ p5When state and P3≤p≤p4When state it is identical；
p5≤p≤p6When the 3rd pressure-reducing valve keep logical state and a depressurization；But liquid is by fluid pressure after the 3rd pressure-reducing valve
It is constantly equal to p5, due to setting p5Equal to the Opening pressure in the 3rd colour developing chamber, therefore p5≤p≤p6When colored liquid c full of the 3rd colour developing
Chamber；3rd colour developing chamber reaches color state c, shows that total color state is a+b+c, and expression reaches anchor pole or bolt Breaking load；
When power F reduces, and pressure p reduces, once there is p≤p5-Δp3, equal sign represents critical condition, wherein Δ p3Represent that the 3rd is unidirectional
Pressure difference when valve is opened needed for two ends, the fluid pressure p in the 3rd colour developing chamber5Have little time mutation, the liquid in the 3rd pressure chamber
Pressure has been p≤p5-Δp3, pressure difference make liquid the 3rd colour developing chamber resilient force under start backflow, the 3rd check valve two ends
Pressure difference between 2 points of q and o reaches its starting differential pressure Δ p3, therefore the 3rd check valve is opened, the liquid in the 3rd colour developing chamber is short
Flowed back in the 3rd pressure chamber rapidly in time, and ensure pressure in transition state：p5-2Δp3≤p≤p5-Δp3When, the 3rd shows
Liquid emptying in color chamber, total color state is a+b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031509.6A CN106679855B (en) | 2017-01-17 | 2017-01-17 | A kind of device and method mixing discoloration monitoring unidirectional force using liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710031509.6A CN106679855B (en) | 2017-01-17 | 2017-01-17 | A kind of device and method mixing discoloration monitoring unidirectional force using liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106679855A true CN106679855A (en) | 2017-05-17 |
| CN106679855B CN106679855B (en) | 2019-03-05 |
Family
ID=58859829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710031509.6A Expired - Fee Related CN106679855B (en) | 2017-01-17 | 2017-01-17 | A kind of device and method mixing discoloration monitoring unidirectional force using liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106679855B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132122A (en) * | 2017-12-25 | 2018-06-08 | 李明渊 | A kind of fire extinguisher pressure limit display |
| CN110017920A (en) * | 2019-04-28 | 2019-07-16 | 太原理工大学 | A kind of solid-liquid mixing unidirectional force monitoring device and monitoring method |
| CN110953008A (en) * | 2019-11-29 | 2020-04-03 | 中国矿业大学 | Roadway surrounding rock deformation monitoring anchor rod, online monitoring device and monitoring method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1093917A1 (en) * | 1982-11-30 | 1984-05-23 | Рижский Краснознаменный Институт Инженеров Гражданской Авиации Им.Ленинского Комсомола | Hydraulic device for measuring forces |
| US4474063A (en) * | 1982-05-26 | 1984-10-02 | Krueger Rudolph E | Measuring amount of bulk materials contained in storage tanks |
| CN1384917A (en) * | 1999-09-06 | 2002-12-11 | 秦内蒂克有限公司 | Pressure indicator |
| CN104198097A (en) * | 2014-09-15 | 2014-12-10 | 太原理工大学 | Mining anchor rod axial-force monitoring device and monitoring method |
| CN105547541A (en) * | 2016-01-05 | 2016-05-04 | 太原理工大学 | Unidirectional force monitoring apparatus and monitoring method |
| CN105675201A (en) * | 2016-01-05 | 2016-06-15 | 太原理工大学 | Device and method for monitoring unidirectional force |
| CN105723190A (en) * | 2013-09-05 | 2016-06-29 | 杰弗里·K·罗 | Reversible force measuring device |
-
2017
- 2017-01-17 CN CN201710031509.6A patent/CN106679855B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474063A (en) * | 1982-05-26 | 1984-10-02 | Krueger Rudolph E | Measuring amount of bulk materials contained in storage tanks |
| SU1093917A1 (en) * | 1982-11-30 | 1984-05-23 | Рижский Краснознаменный Институт Инженеров Гражданской Авиации Им.Ленинского Комсомола | Hydraulic device for measuring forces |
| CN1384917A (en) * | 1999-09-06 | 2002-12-11 | 秦内蒂克有限公司 | Pressure indicator |
| CN105723190A (en) * | 2013-09-05 | 2016-06-29 | 杰弗里·K·罗 | Reversible force measuring device |
| CN104198097A (en) * | 2014-09-15 | 2014-12-10 | 太原理工大学 | Mining anchor rod axial-force monitoring device and monitoring method |
| CN105547541A (en) * | 2016-01-05 | 2016-05-04 | 太原理工大学 | Unidirectional force monitoring apparatus and monitoring method |
| CN105675201A (en) * | 2016-01-05 | 2016-06-15 | 太原理工大学 | Device and method for monitoring unidirectional force |
Non-Patent Citations (1)
| Title |
|---|
| 周清亮等: "无源型矿用锚杆轴向力监测装置的优化设计", 《周清亮》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108132122A (en) * | 2017-12-25 | 2018-06-08 | 李明渊 | A kind of fire extinguisher pressure limit display |
| CN110017920A (en) * | 2019-04-28 | 2019-07-16 | 太原理工大学 | A kind of solid-liquid mixing unidirectional force monitoring device and monitoring method |
| CN110953008A (en) * | 2019-11-29 | 2020-04-03 | 中国矿业大学 | Roadway surrounding rock deformation monitoring anchor rod, online monitoring device and monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106679855B (en) | 2019-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106679855A (en) | Apparatus and method of monitoring unidirectional force by means of liquid mixing color changing | |
| CN107701155B (en) | Underground intelligent control type packing injection allocation device | |
| CN105547541B (en) | A kind of unidirectional force monitoring device and monitoring method | |
| CN105675201A (en) | Device and method for monitoring unidirectional force | |
| CN107489395B (en) | Underground intelligent control type expansion packer | |
| CN108798735B (en) | A kind of device and method using layer-by-layer metachromatic principle monitoring unidirectional force | |
| CN207816727U (en) | A kind of portable self sealss rock SHPB experiments confining pressure pressue device | |
| CN110017931A (en) | A kind of outer lateral earth pressure measuring device of shield tunnel | |
| CN110044529A (en) | A kind of outer lateral earth pressure measurement method of shield tunnel | |
| CN104913091B (en) | A kind of adjustable visual alarm formula safety valve | |
| CN201730608U (en) | Comprehensive logging instrument for underground layered string inspection | |
| CN104897548B (en) | Locking device and the full-automatic concrete Anti-leakage instrument using locking device | |
| CN106768599B (en) | A kind of fluid pressure monitoring device and monitoring method | |
| CN106018109B (en) | A kind of continual and steady adding pressure type geotechnique film liquid bulging deformation mechanical testing equipment | |
| CN205898575U (en) | Formula of pressurizeing continually and steadily geomembrane liquid expands and warp mechanical test device | |
| CN201187312Y (en) | Mining single hydraulic prop pressure alarm | |
| CN114608782B (en) | Aviation fuel pipeline weighs down and hits impact test device | |
| CN214471452U (en) | Mining annular dynamometry multicolor and digital display device | |
| CN210719545U (en) | Automatic inflation and deflation pressure tank | |
| CN212180381U (en) | Probe for exploring shallow harmful gas | |
| CN209927584U (en) | Two-stage lever type mechanical experiment device | |
| CN215217885U (en) | Mining annular dynamometry detects multicolour display device | |
| CN208505692U (en) | A kind of chain-bar type sampling underground fluid device | |
| CN208328678U (en) | Split intelligent ball-type Dynamometric support system device | |
| CN205262870U (en) | Limit pressure value testing arrangement of sealing member of battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190305 Termination date: 20220117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |