CN109813484A - A force measuring fixture - Google Patents
A force measuring fixture Download PDFInfo
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- CN109813484A CN109813484A CN201910189402.3A CN201910189402A CN109813484A CN 109813484 A CN109813484 A CN 109813484A CN 201910189402 A CN201910189402 A CN 201910189402A CN 109813484 A CN109813484 A CN 109813484A
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- Prior art keywords
- pressure
- sensor
- main body
- force measuring
- pressure sensor
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- 210000000078 claw Anatomy 0.000 claims abstract description 42
- 238000004891 communication Methods 0.000 claims description 14
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims 2
- 229920003225 polyurethane elastomer Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 description 14
- 239000007789 gas Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000383 hazardous chemical Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 2
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
一种测力夹具，包括主体柱、固定爪、活动爪、丝杆、压力传感器和传感器控制模块。固定爪固定在主体柱的一端；传感器控制模块固定在主体柱的另一端；活动爪的一端套接在主体柱上，并且能够在主体柱上滑动，活动爪的另一端安装有丝杆，丝杆穿过活动爪，丝杆靠近固定爪夹持部的一端设有活动夹持部，丝杆的另一端安装有用于锁紧或放松的丝杆把手；压力传感器固定在固定爪上，传感器控制模块通过安装在主体柱上的连接导线与压力传感器连接获得夹持点的压力值。本发明的测力夹具在复杂消防环境下，能够准确施加夹持力和获取夹持点压力值。
A force measuring fixture includes a main body column, a fixed claw, a movable claw, a screw rod, a pressure sensor and a sensor control module. The fixed claw is fixed on one end of the main body column; the sensor control module is fixed on the other end of the main body column; one end of the movable claw is sleeved on the main body column, and can slide on the main body column, the other end of the movable claw The rod passes through the movable claw, the end of the screw rod close to the clamping part of the fixed claw is provided with a movable clamping part, and the other end of the screw rod is equipped with a screw handle for locking or loosening; the pressure sensor is fixed on the fixed claw, and the sensor controls The module is connected with the pressure sensor through the connecting wire installed on the main body column to obtain the pressure value of the clamping point. The force measuring fixture of the present invention can accurately apply the clamping force and obtain the pressure value of the clamping point under the complex fire protection environment.
Description
Technical field
The present invention relates to a kind of clamping devices, and in particular to a kind of clamping device for having test clamp pressure.
Background technique
The development of chemical industry brings huge convenience to the mankind, while also along with the generation of serious chemical accident.Closely
A little years, the dangerous chemical leakage accident caused in production, storage and transportational process are also in obvious ascendant trend.Chemicals
The links such as production, consumption all be unable to do without transport, and social public security is made in the frequent generation of hazardous chemical road transport accident
At significant damage.
According to statistics, Transportation Accidents of Hazardous Chemicals accounts for the 30%~40% of hazardous chemical total number of accident, wherein chemicals
Leakage accident has accounted for 70% or more.Railway Tank Cars for Liquefied Gas is used for carrying liquefied gases as a kind of in design and technical characteristic
Unitrain, because of the features such as its airtight performance is strong, conevying efficiency is high, good in economic efficiency, it has also become the master of highway gas transport
Want carrier.Normal-temperature liquefaction gas (such as liquid chlorine, liquefied ammonia, liquefied petroleum gas) and liquefied gas at low temp (such as liquid oxygen, liquid nitrogen, liquid
Argon, liquefied natural gas etc.) all transported by Railway Tank Cars for Liquefied Gas.Since it has the characteristics that mobile and repeated charging, than
Other pressure vessels are complicated and risk is big, once occurring Sudden Leakage accident in transportation and handling procedure, easily form combustion
Burning, explosion, toxic gas diffusion and personnel casualty accidents.Therefore, after Railway Tank Cars for Liquefied Gas leaks, how quickly, science
Leak stopping is carried out, the dangerous generations such as burning, explosion is avoided, is that fire brigade needs to study an important topic.
Conventional blocking method clamps leak point using pliers such as F pliers, and this method can be directed to pipeline, tank body and valve
Leakage, leak point visible to the naked eye can use, as long as there is reversed fixed point to can be used.The advantages of pliers leak stopping
Have: 1) anti-pressure ability is stronger, other common leak stopping modes such as wooden wedge method and refrigeration towel icing wrap up in quick pushing manipulation anti-pressure ability compared with
It is weak；2) there is stronger flexibility when being directed to irregular container and pipe plugging, adaptability is stronger；It 3) can be at the system of series
Make, different sizes are from big to small to adapt to different tank body and pipeline.In addition, F pliers can also be with other leak stopping components
It is used cooperatively, such as rubber pad and wooden wedge.
But different leak stopping scenes has different pressure requirements, such as the take-off pressure of the safety valve of harmful influence groove tank car
Power 0.8Mpa or so, i.e. 8 kilograms or so pressure；In addition, in bite because of the flowing of internal liquid or gas, so bite
Pressure is variation, and therefore, for firefighters in leak stopping it should be understood that the pressure size of leak stopping point, when clamping exists pressure control
Specific pressure space prevents application pressure from crossing havoc pipeline, and pressure is too small not to have leak stopping effect.But traditional clamping
Fixture does not have pressure display function, can not accurately apply strength in clamping process, the pressure for obtaining bite of yet having no idea
Variation.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide one kind accurately to apply
Add chucking power and obtains the dynamometer clamp of clamping point pressure.
To achieve the above object, the present invention provides a kind of dynamometer clamps, comprising:
Main column；Fixed jaw, the fixed jaw are fixed on one end of the main column, and the fixed jaw includes for pressing from both sides
Hold fixed jaw clamping part and the inactive portion of fixed jaw of object；Pressure sensor；The pressure sensor is fixed on the fixation
In the inactive portion of pawl；Pressure sensor control module, the pressure sensor control module are fixed on the another of the main column
End, is connect with the pressure sensor by the conducting wire being mounted on the main column, obtains what the pressure sensor was measured
Pressure size；Movable claw and screw rod, described movable claw one end are socketed on the main column, and can be on the main column
Sliding, the screw rod are fixedly mounted on the other end of the movable claw, and the screw rod passes through the movable claw, the screw rod and institute
Stating the opposite one end of fixed jaw includes the movable claw clamping part for clamping object, and the other end of the screw rod includes for locking or putting
The lead screw handle of pine.
Preferably, the pressure sensor module includes the liquid crystal display or LED charactrons for showing pressure value.
Preferably, the pressure sensor module includes the LED light array for showing range of pressure values, the LED light
Array is placed on the inner fovea part on the pressure sensor control module panel.
Preferably, the LED light array includes different colours；Different pressure value sections correspond to different LED colors.
Preferably, the movable claw includes socket part, the movable claw is socketed in the main column by the socket part
On, it is slided on the main column.
Preferably, the pressure sensor includes sensor head and Sensor tail；The fixed jaw clamping part includes
Sensor through-hole；The Sensor tail is by the sensor through-hole fixed placement on the main column.
Preferably, including the groove for placing the Sensor tail on the main column.
Preferably, the pressure sensor surface covers a strata urethane rubber sheet gasket, for vibration to be isolated and absorbs punching
It hits, protects pressure sensor not to be damaged in clamping process.
Preferably, the sensor control block includes voice Broadcast Control unit, the voice Broadcast Control unit can be according to pressure
Force value plays default voice, or plays alarm voice according to pressure value, or change according to pressure value and play alarm voice.
Preferably, the sensor control block includes wireless telecommunications submodule, the sensor control block passes through institute
The control instruction that wireless telecommunications submodule obtains overlayer monitors platform is stated, the sensor control block passes through the wireless telecommunications
The pressure value of submodule transmission measurement is controlled uniformly to the monitor supervision platform.
Preferably, the wireless telecommunications submodule is blue tooth wireless communication module and/or 2.4G wireless remote control communication module
And/or WLAN communication module.
Dynamometer clamp disclosed by the invention can observe the pressure change of bite in clamping, so that in complicated fire-fighting
In environment, fire fighter can intuitively observe clamping point pressure, accurately apply pressure；And the pressure of bite is obtained in time
Variation: if pressure is invariable when leak stopping represents leak stopping success, leak stopping point pressure illustrates that leak stopping does not succeed if variation.This hair
Bright beneficial effect is specific as follows:
(1) although dynamometer clamp disclosed by the invention movable claw in clamping process is that movement changes, sensor,
Sensor control block remains stationary, and can preferably carry out pressure measurement；
(2) change value of pressure is shown by liquid crystal display or LED charactrons, can accurately controls the dynamics of clamping；
(3) by allowing firefighters intuitively to observe pressure value size and variation in fire-fighting environment with LED array
Strong and weak trend.It is further advanced by the LED array that different pressures value corresponds to different colours, firefighters can be allowed to observe in time
Dangerous pressure will not apply excessive pressure, lead to clamped pipeline breaking, such as setting green, blue, yellow, red, corresponding
Insufficient pressure, pressure just, hypertonia, pressure hazard, no matter in clamping process, or sight to pressure change after clamping
It surveys, it is all very clear；
(4) voice Broadcast Control unit is contained in sensor control block due to the present invention, in fire-fighting environment, voice can
To transmit pressure value, fireman can be allowed in case of emergency not need to be watched with eyes, just in the scenes such as dense smoke thick fog
It can be with quick obtaining pressure value；
(5) present invention submodule can also be communicated with monitor supervision platform by wireless communication, receive the finger of monitor command
It enables, uploads pressure value to monitor supervision platform, be controlled uniformly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the dynamometer clamp of a preferred embodiment of the present invention.
Fig. 2 is the corresponding main view of Fig. 1.
Fig. 3 is the structural schematic diagram of the dynamometer clamp of another preferred embodiment of the present invention.
Fig. 4 is the corresponding main view of Fig. 3.
Fig. 5 is the structural schematic diagram of the pressure sensor of a preferred embodiment of the present invention.
Specific embodiment
The preferred embodiments of the present invention will be described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that so as to make a clearer definition of the protection scope of the present invention.
Figures 1 and 2 show that the dynamometer clamp structural schematic diagram that a preferred embodiment of the present invention provides, referring to Fig. 1 and figure
2, dynamometer clamp provided in this embodiment, comprising: main column 1, fixed jaw 2, pressure sensor 3, pressure sensor control module
4, movable claw 5 and screw rod 6.
Main column 1 is the main part of entire dynamometer clamp.
Fixed jaw 2 is fixed on one end of main column 1, and fixed jaw 2 includes 21 He of fixed jaw clamping part for clamping object
Inactive portion 22.
Pressure sensor 3 is fixed in the inactive portion 22 of fixed jaw, for perceiving pressure change when clamping.
Pressure sensor control module 4, pressure sensor control module 4 are fixed on the other end of main column 1, pass through installation
Conducting wire on main column 1 is connect with pressure sensor 3, for obtaining the pressure value for the bite that pressure sensor 3 is measured.
For 5 one end noose of movable claw on main column 1, movable claw 5 is the socket part 51 of movable claw 5 with 1 socket place of main column,
Movable claw 5 can be slided by socket part 51 on main column 1.Screw rod 6 is fixedly mounted on the other end of movable claw 5, screw rod 6 with
Screw rod 6 can be passed through wire rod thread hole 52 and consolidated by 5 fixed form of movable claw by opening wire rod thread hole 52 on movable claw
Fixed, the one end opposite with fixed jaw 2 of screw rod 6 includes the movable claw clamping part 61 for clamping object, and the other end of screw rod 6 includes being used for
The lead screw handle 62 locked or loosened.
Dynamometer clamp of the invention when in use, is clamped to be measured by fixed jaw clamping part 21 and movable claw clamping part 61
Object, and locked by lead screw handle 62.In clamping process, movable claw 5 can be slided according to object size to be measured
Dynamic adjustment.Although movable claw 5 is mobile variation, pressure sensor 3, pressure sensor control module in clamping process
4 remain stationary, and can preferably carry out pressure measurement.
3 surface of pressure sensor of the invention can cover a strata urethane rubber sheet gasket, for vibration to be isolated and absorbs
Impact, protects pressure sensor not to be damaged in clamping process.The RFP pressure sensor of the standard polyester very thin by two panels
Film composition, two panels film inner surface are laid with conductor and semiconductor.When in external force to sensing point, the resistance value of semiconductor can be with
The proportional variation of external force, when pressure is zero, resistance value is maximum, and pressure is bigger, and resistance value is smaller.
Pressure sensor control module 4 further includes for showing that the output of pressure value is whole in a preferred embodiment of the present invention
End 41, fire fighter pass through the pressure value that outlet terminal 41 is shown, can accurately control the dynamics of clamping, prevent from applying pressure
Havoc pipeline is crossed, pressure is too small not to have leak stopping effect.Outlet terminal 41 is preferably liquid crystal display and/or LED charactrons.Wherein,
Liquid crystal display is using liquid crystal material as basic module, and the filling liquid crystal material between two blocks of parallel-plates changes liquid crystal by voltage
Material internal molecule comes column-shaped condition, to achieve the purpose that shading and the light transmission image deep mixed, in picturesque disorder to show,
As long as adding the filter layer of three-primary colours between two pieces of plates, so that it may realize display chromatic image.Liquid crystal display power consumption is very low,
Therefore favored by engineer, suitable for using the electronic equipment of battery.LED charactrons (LED Segment Displays) by
Multiple LED packages form the device of " 8 " font together, and lead in inside, complete by connection, only need to draw theirs
Each stroke, public electrode, LED charactrons are actually to form what 8-shaped was constituted by seven luminous tubes, in addition decimal point is exactly
8.These sections are respectively by alphabetical a, b, c, d, e, f, g, and dp is indicated.
Fig. 3 and Fig. 4 shows the dynamometer clamp structural schematic diagram that another preferred embodiment of the present invention provides, referring to Fig. 3 and
Fig. 4, dynamometer clamp provided in this embodiment, including main column 1, fixed jaw 2, the inactive portion of fixed jaw clamping part 21, fixed jaw
Points 22, pressure sensor 3, pressure sensor control module 4, movable claw 5, screw rod 6, movable claw clamping part 51, lead screw handle 61,
LED light array 42, pressure sensor control module inner fovea part 43.
Pressure sensor control module inner fovea part 43 is the inner groovy on pressure sensor control module panel, LED light battle array
Column 42 are placed in pressure sensor control module inner fovea part 43.LED light array 42 is for showing pressure value variation range.Relatively
In liquid crystal display or LED charactrons, LED light array 42 can allow fire fighter more intuitively to observe under complicated fire-fighting environment
To the strong and weak trend of pressure value size and variation.
The LED light array 42 of the present embodiment includes different colours, and different pressure value sections corresponds to different LED colors,
The different row of LED light array 42 arranges a kind of color, darkens with column arrangement LED light, as indicated pressure value with row
Different positions, different colours series etc., corresponding different pressure value position indicates the numerical value on position with color depth.Such as
12345, the sequence of bright light is exactly the 1st row bright light the 1st, the 2nd row bright light the 2nd, the 3rd row bright light the 3rd, the 4th row bright light the 4th
It is a, the 5th row bright light the 5th.Or every row bright light quantity is identical as numerical value, such as the 2nd row bright light the 1st, the 2nd.
In fire-fighting environment, by the corresponding color gamut of pressure value, firefighters can be allowed to observe dangerous pressure in time
Power will not apply excessive pressure, lead to clamped pipeline breaking, green, blue, yellow, red is such as arranged, corresponding pressure is not
Foot, pressure are just, hypertonia, pressure hazard all may be used no matter in clamping process, or observation to pressure change after clamping
It is very clear to accomplish.
As shown in figure 5, pressure sensor 3 includes sensor head 31 and Sensor tail 32, the length of Sensor tail 31
Degree is longer, is placed on main column 1 by the sensor through-hole 211 on fixed jaw clamping part 21.Preferably, include on main column 1
Sensor tail 32 is placed in groove 11 by groove 11, since main column 1 is longer, can be placed longer pressure and be passed
Sensor tail portion 32.
Sensor of the invention control module 4 further includes voice Broadcast Control unit, and the voice Broadcast Control unit can be according to pressure
Force value plays default voice, or plays alarm voice according to pressure value, or change according to pressure value and play alarm voice.In fire-fighting
In environment, voice can transmit pressure value, fireman can be allowed not need in case of emergency in the scenes such as dense smoke thick fog
It is seen with eyes, so that it may quick obtaining pressure value.
Sensor of the invention control module 4 can also include wireless telecommunications submodule, and entire dynamometer clamp is as upper layer
One component part of monitor supervision platform, sensor control block 4 are referred to by the control that wireless telecommunications submodule obtains monitor supervision platform
Enable and transmission measurement to pressure value be sent to monitor supervision platform, be controlled uniformly.Preferably, the wireless telecommunications submodule is
Blue tooth wireless communication module and/or 2.4G wireless remote control communication module and/or WLAN communication module.
In conclusion being several preferred embodiments of the invention described in this specification, above embodiments are only
It is limited to illustrate technical solution of the present invention.All technician in the art are under this invention's idea in existing skill
It, all should be in power of the invention by the available technical solution of logical analysis, reasoning, or a limited experiment on the basis of art
Within the scope of benefit is claimed.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910189402.3A CN109813484A (en) | 2019-03-13 | 2019-03-13 | A force measuring fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910189402.3A CN109813484A (en) | 2019-03-13 | 2019-03-13 | A force measuring fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109813484A true CN109813484A (en) | 2019-05-28 |
Family
ID=66608936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910189402.3A Pending CN109813484A (en) | 2019-03-13 | 2019-03-13 | A force measuring fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109813484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110398309A (en) * | 2019-07-30 | 2019-11-01 | 哈尔滨理工大学 | An electric spindle fixture |
| CN112958327A (en) * | 2021-03-18 | 2021-06-15 | 上海怡上电子科技有限公司 | Spraying test fixture for filter and working method and system thereof |
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Application publication date: 20190528 |