CN207379812U - A kind of force measuring device suitable under high temperature and high pressure environment - Google Patents
A kind of force measuring device suitable under high temperature and high pressure environment Download PDFInfo
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- CN207379812U CN207379812U CN201721457472.5U CN201721457472U CN207379812U CN 207379812 U CN207379812 U CN 207379812U CN 201721457472 U CN201721457472 U CN 201721457472U CN 207379812 U CN207379812 U CN 207379812U
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Abstract
The utility model discloses a kind of force measuring devices suitable under high temperature and high pressure environment, which avoids tensile axis in the prior art and autoclave to use dynamic sealing connection mode, without considering the kinetic force of friction of sealing ring, so that the frictional force of friction pair can be obtained directly by force sensor measuring, measurement data is more precisely reliable；Meanwhile by using the direct dynamometry of underwater force snesor suitable for normal temperature high voltage environment that can be purchased in the market in the force measuring device, the technical issues of measurement data brought when not being suitable for force snesor under high temperature and high pressure environment is inaccurate is overcome.
Description
Technical field
The utility model is related to a kind of force measuring devices suitable under high temperature and high pressure environment.
Background technology
Frictional behaviour is one of fundamental property of material, and the frictional behaviour of certain material can be rubbed by the quiet, dynamic of material
Coefficient is wiped to characterize, wherein, confficient of static friction is defined as the ratio between stiction and normal force（Stiction is that two contact surfaces exist
Maximum resistance when relative movement starts）.In actual engineering design and assessment, coefficient of friction is modular construction stable calculation
One of key parameter, especially confficient of static friction is judgement part from the key parameter for being stabilized to unstability, it is necessary to pass through experiment
It obtains.
At present, only to some simply rub very much subsidiary species class, contact form, rings in the international professional standard such as ASTM
The combined situation specification of border condition test method, and for more complicated friction subsidiary species class present in Practical Project, connect
The form of touching, the combined situation of environmental condition do not have the corresponding test method of specification.Therefore, either the design phase still transports at present
Row evaluation stage, the value of confficient of static friction is usually only with reference to the analogue in mechanical handbook between friction is secondary, and manipulator
Reference value in volume is not often inconsistent with situations such as friction subsidiary species class of engineering physical unit, contact form, environmental condition, so meeting
Appearance designs or assesses the phenomenon that safety coefficient is excessive or too small, is unfavorable for industrial economy, security.Especially
It is for being on active service in the middle part of high temperature high pressure enclosed container environment for part, due to high-temperature high pressure water（Or steam）Load in environment
The limitation of sensor and displacement sensor uses, and confficient of static friction measurement is even more difficulty.
In the prior art, in order to obtain the confficient of static friction between high-temperature high pressure water or steam ambient lower component, lead to
Often all it is that sample is placed in high temperature high pressure enclosed container to test, however, currently on the market almost without suitable for such
Force snesor under environmental condition directly measures the frictional force of sample, thus current confficient of static friction is all by surveying indirectly
It measures and is calculated what is obtained.During above-mentioned calculating obtains confficient of static friction, it is necessary in view of close in experimental rig
The frictional force of element is sealed, and the frictional force is not a stable numerical value, fluctuation is bigger and irregular, thus so surveys
Measure the coefficient of static friction values that is calculated and not accurate enough.
The content of the invention
The purpose of this utility model is to overcome the shortcomings that the prior art, provide a kind of be suitable under high temperature and high pressure environment
Force measuring device, wherein frictional force can directly measure acquisition, and measurement is very convenient.
In order to achieve the above objectives, the technical solution adopted in the utility model is：It is a kind of to be suitable under high temperature and high pressure environment
Force measuring device, wherein, the inner cavity of high-pressure bottle is high temperature and high pressure environment chamber, and the force measuring device includes：
Connector sleeve, one end are used for mutually fixed with the high-pressure bottle and are tightly connected, and have edge on the connector sleeve
The first through hole for axially penetrating through and being connected with the high temperature and high pressure environment chamber；
Installation set is fixedly arranged on the other end of the connector sleeve, has the host cavity of closing, institute in the installation set
The host cavity stated is connected with the first through hole；
Power output shaft, the output terminal of the power output shaft are threaded through in the host cavity of the installation set；
Force snesor, the force snesor are the underwater force cell suitable for normal temperature high voltage environment, the power sensing
Device is connected on the output terminal of the power output shaft and in the host cavity；
Tensile axis, the axial line of the tensile axis is parallel with the axial line of the power output shaft or overlaps, the stretching
One end of axis is fixedly attached on the force snesor, and the other end of the tensile axis through the first through hole and stretches into institute
In the high temperature and high pressure environment chamber for stating high-pressure bottle；
Cooling jacket is set on the connector sleeve, and cooling water cavity, institute are formed between the cooling jacket and connector sleeve
State the intake tunnel and exhalant canal for also having on cooling jacket and being connected with the cooling water cavity.
Preferably, there are the connector portions being mutually fixedly connected with the connector sleeve, the connector portions in the installation set
On offer corresponded to vertically for the tensile axis through the second through hole, second through hole connection host cavity with
The first through hole.
Further, the host cavity is divided into the different both sides of second through hole with the first through hole.
Further, the tensile axis is plugged in clearance fit respectively in the first through hole and the second through hole.
Further, the first through hole is identical with the aperture of the second through hole and the two center line is set with coinciding.
Preferably, tool is there are two collar flange in the outside circumference of the connector sleeve, and two collar flanges are described in
The axially spaced-apart of connector sleeve is set, and the cooling jacket is hermetically set on the collar flange described in two, the cooling
The cooling water cavity is formed between the inside peripheral wall of water jacket, the outer perimeter wall of the connector sleeve and two collar flanges.
Preferably, the installation set is wholely set or the installation set and the connector sleeve split with the connector sleeve
It sets and passes through helicitic texture and be fixedly connected.
Preferably, the power output shaft is self-balancing tensile axis, the mounting base of the self-balancing tensile axis and the peace
Encapsulation is fixedly connected, and is connected to dynamic sealing between the output terminal of the self-balancing tensile axis and the installation set.
Preferably, cable outlet is additionally provided in the installation set, cable sealed joint is equipped at the cable outlet, it is described
The signal output cable of force snesor connects and protruding with the cable sealed joint.
Preferably, the high-pressure bottle is autoclave, and the autoclave includes autoclave body and kettle cover, the connection external threading
It is fixed on the kettle cover to connection, the pilot hole passed axially through for the tensile axis, the drawing is offered on the kettle cover
Shaft clearance is stretched ordinatedly to be arranged in the pilot hole.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：
1st, dynamometry is carried out using the underwater force snesor suitable for normal temperature high voltage environment that can be purchased in the market, without
The underwater force snesor of high temperature and high pressure environment；
2nd, hyperbaric environment residing for force snesor is consistent with hyperbaric environment residing for sample, and measurement data is more accurate；
3rd, dynamic sealing connection is saved between tensile axis and autoclave, there is no need to consider the kinetic force of friction of sealing ring so that
The secondary frictional force of friction can be obtained directly by force sensor measuring, and measurement data is more accurate.
Description of the drawings
Attached drawing 1 be the present embodiment used by testing machine overall structure diagram；
Attached drawing 2 be used by the present embodiment on testing machine between tensile axis and self-balancing tensile axis structure side view signal
Figure；
Attached drawing 3 is the schematic cross-sectional view of attached drawing 2；
Attached drawing 4 is the structure of attached drawing 3 and the attachment structure schematic diagram of autoclave；
Attached drawing 5 is connection structure enlarged diagram between installation set, connector sleeve and cooling jacket in attached drawing 3；
Attached drawing 6 is the force analysis schematic diagram of the testing machine of the present embodiment；
Attached drawing 7 is another usage scenario schematic diagram of the force measuring device of the utility model；
Wherein：1st, power output shaft（Self-balancing tensile axis）；11st, output terminal；2nd, installation set；21st, host cavity；22nd, second is logical
Hole；23rd, connector portions；24th, cable sealed joint；3rd, connector sleeve；31st, first through hole；32nd, collar flange；4th, cooling jacket；41、
Cooling water cavity；42nd, intake tunnel；43rd, exhalant canal；5th, force snesor；51st, signal output cable；6th, tensile axis；7th, limiting card
Circle；8th, high-pressure bottle（Autoclave）；81st, autoclave body；82nd, kettle cover；9th, clamp assembly；91st, the first sample；92nd, the second sample；10、
Force measuring device；20th, machine is loaded；30th, sensor；40th, connecting shaft；50th, rack；
Specific embodiment
The technical solution of the utility model is further elaborated with specific embodiment below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1 to Fig. 6, it is high to be mainly used for simulation for a kind of force measuring device suitable under high temperature and high pressure environment
Power measurement between warm high pressure work condition environment lower component during wear test.It is a kind of high-temperature high pressure water or steam ring as shown in Figure 1
Border fretting apparatus is mainly used for two samples and fretting wear experiment is carried out in high-temperature high pressure water or steam ambient,
To simulate the abrasion condition under corresponding operating mode between two components, and then wear condition is prejudged in advance.
Shown in Figure 1, which includes rack 50, the loading machine 20 arranged on 50 top of rack, which uses
In the vibration of output upper frequency, to export loading force and displacement, herein, the action shaft of loading machine 20 vertically extends,
To export the power of vertical direction and displacement.Sensor 30 is equipped with below the main shaft of loading machine 20 to detect adding for the output of loading machine 20
Power is carried, the lower section of sensor 30 is connected with connecting shaft 40 by universal joint.High-pressure bottle 8 is additionally provided in rack 50, is used herein
It is autoclave, fills high temperature and high pressure gas or liquid in its inner cavity at the trial and form high temperature and high pressure environment chamber, including
Autoclave body 81 and the kettle cover 82 being sealably coupled on autoclave body 81, wherein, it is arranged in rack 50 to 81 oscilaltion of autoclave body, kettle cover 82
It is fixedly disposed with respect to 50 position of rack.Sample is gripped by clamp assembly 9 and in the inner cavity of autoclave 8.
Referring to shown in Fig. 1 to Fig. 6, force measuring device 10 is arranged between above-mentioned connecting shaft 40 and autoclave 8.Specifically,
The force measuring device 10 includes：
Connector sleeve 3, the lower end of the connector sleeve 3 are fixed and are sealingly attached on the kettle cover 82 of autoclave 8, the connector sleeve
There is the first through hole 31 that is connected of inner cavity axially through and with autoclave 8 on 3；
Installation set 2, the lower end of the installation set 2 are fixedly attached on the upper end of connector sleeve 3, are had in the installation set 2
There is the host cavity 21 being connected with first through hole 31；
Power output shaft, it is self-balancing tensile axis 1 to use herein, and end is connected with the lower end of connecting shaft 40 thereon,
Its lower end is output terminal 11, which is threaded through in the host cavity 21 of installation set 2, and between output terminal 11 and installation set 2
Connect to dynamic sealing；
Force snesor 5, the force snesor 5 are passed using the underwater force cell suitable for normal temperature high voltage environment, this kind of power
Sensor can be directly commercially available currently on the market, which is housed in host cavity 21, is fixed on power output terminal
On 11；
Tensile axis 6, the axial line of the tensile axis 6 is parallel with the axial line of self-balancing tensile axis 1 or overlaps, the tensile axis
6 upper end is fixedly attached on force snesor 5, and the other end of tensile axis 6 through first through hole 31 and stretches into the interior of autoclave 8
In chamber；
Cooling jacket 4, the cooling jacket 4 are set on connector sleeve 3, and cooling water is formed between cooling jacket 4 and connector sleeve 3
Chamber 41 also has the intake tunnel 42 being connected with cooling water cavity 41 and exhalant canal 43 on cooling jacket 4.
Specifically, there are the connector portions 23 being fixedly connected with 3 phase of connector sleeve referring to shown in each attached drawing, in installation set 2,
Offered in the connector portions 23 for tensile axis 6 vertically correspond to through the second through hole 22, second through hole 22 connection first
Through hole 31 and host cavity 21, and host cavity 21 is divided into the different both sides on 22 vertical direction of the second through hole with first through hole 31.
First through hole 31 is identical with the aperture of the second through hole 22 and the center line of the two overlaps ground and sets as far as possible, the hole of the two
Diameter of the footpath than tensile axis 6 is somewhat larger, is threaded through to 6 clearance fit of tensile axis in 31 and second through hole 22 of first through hole,
And its both ends is located at respectively in the inner cavity of host cavity 21 and autoclave 8.In this way, between the environmental chamber of autoclave 8 and host cavity 21
By the gap between above-mentioned hole and realize gas-liquid connect, moreover, when tensile axis 6 axially movable when, tensile axis 6 and first lead to
Cross between the 31, second through hole 22 that there is no contacts.
During setting, above-mentioned installation set 2 using split structure and can pass through with connector sleeve 3 in the way of the present embodiment
Helicitic texture is fixed connection, can also be machined directly to the structure of integral type.
Referring to shown in Fig. 2 to Fig. 5, there are two collar flange 32, the two collar flanges 32 for the outside circumference tool of connector sleeve 3
It is set along the axially spaced-apart of connector sleeve 3, cooling jacket 4 is in hollow tube-shape, and above-mentioned two is hermetically set in by sealing element
On collar flange 32, in this way, between the outer perimeter wall of the inside peripheral wall of cooling jacket 4, connector sleeve 3 and two collar flanges 32 just
Form cooling water cavity 41.The cooling water cavity 41 is located at the outside of first through hole 31, by intake tunnel 42 and exhalant canal 43
Between be passed through recirculated cooling water, just can to from 8 inner cavity of autoclave through first through hole 31 into host cavity 21 gas-liquid give it is cold
But cool down.The lower section of cooling jacket 4 is additionally provided with limit stop ring 7 to give axial limiting to cooling jacket 4, to avoid it to downslide
It is dynamic.
Referring to shown in Fig. 3 to Fig. 5, cable outlet is additionally provided in installation set 2, cable sealed joint is equipped at the cable outlet
24, which is threadedly secured on above-mentioned cable outlet and is sealed by O-ring seal, force snesor 5
Signal output cable 51 connect with cable sealed joint 24 and protruding.
Referring to shown in Fig. 1, Fig. 6, the end that tensile axis 6 is penetrated in 8 inner cavity of autoclave is connected with clamp assembly 9.Herein,
Clamp assembly 9 is installed for the fixed clamp between the first sample 91 and the second sample 92, wherein, the first sample 91 is fixed on this
On the lower end of tensile axis 6, the second sample 92 is then fixed on by clamp assembly 9 on the kettle cover 82 of autoclave 8, and is tried with first
Sample 91 remains contact.When loading machine 20 works, tensile axis 6 will be applied along its axial displacement, so that the first examination
Relative motion occurs between 91 and second sample 92 of sample, and then carries out the fretting wear experiment between two samples.In the present embodiment
Clamp assembly 9 to use be that China Patent No. is ZL201210353366.8, notification number is 102866058 B of CN, proprietary term
Referred to as " pipe-tablet line contact fretting wear experiment clamping device ", structure is no longer described in detail herein.
Join shown in Fig. 4, Fig. 5, when carrying out fretting wear experiment using the testing machine, complete the first sample 91 and the second examination
After the installation of sample 92, autoclave body 81 is risen and it is made to be connected with 82 fitted seal of kettle cover.At this point, the inner cavity of autoclave 8 with
In installation set 2 gas-liquid connected state is between the host cavity 21 of storing force sensor 5.
First so that the inner cavity of autoclave 8 and full experimental enviroment water or steam in the host cavity 21 of installation set 2, and
It is first under normal temperature high voltage state, at this point, the inner cavity of autoclave 8 in host cavity 21 with filling in normal temperature high voltage water or steaming
Vapour environment.
Then, then to the environmental chamber of autoclave 8 heat so that reach the high temperature shape of test requirements document in environmental chamber
State, and the condition of high temperature is accommodated because of the connector sleeve 3 and cooling jacket 4 that are connected between autoclave 8 and installation set 2 without being transferred to
In chamber 21 so that in host cavity 21 always in normal temperature high voltage water or steam ambient, force snesor 5 can be stablized in this context
Realize power measurement in ground.
It is shown in Figure 6, since the tensile axis 6 of 5 lower section of force snesor is directly connected with the first sample 91, and tensile axis
6 will not generate friction during axially movable or be released with other component on testing machine, and therefore, measurement herein need not
Consider the problems of frictional force, the measured numerical value obtained of the force snesor 5 is that the first sample 91 and the second sample 92 are formed
Frictional force between friction is secondary, i.e. F1=fSample.In this way, it is more accurate to measure obtained test data.
Certainly, when the first sample 91 in the environmental chamber of autoclave 8 and the second sample 92 are using other structures or
When changing the connection mode between sample and tensile axis 6, can also height be realized using the force measuring device 10 in the present embodiment
Power measurement under warm high pressure water or steam ambient.
It certainly, can also be using the force measuring device 10 come to high temperature and pressure ring when the direction of institute's dynamometry changes
Force-bearing situation under border measures.In testing machine as illustrated in FIG. 7, the tensile axis 6 in two force measuring devices 10 is distinguished
Vertically extend and horizontally extending.
To sum up, the force measuring device of the utility model, which avoids tensile axis 6 be connected with autoclave 8 and caused by
The problem of dynamic sealing frictional force is not easy to measure, and tensile axis 6 is directly directly connected to force snesor 5, the survey because obtained from
Amount data are more accurate reliable, and which overcome because the measurement data not suitable for being brought during force snesor under high temperature and high pressure environment
The technical issues of inaccurate.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, can not the scope of protection of the utility model be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (10)
1. a kind of force measuring device suitable under high temperature and high pressure environment, wherein, the inner cavity of high-pressure bottle is high temperature and high pressure environment
Chamber, which is characterized in that the force measuring device includes：
Connector sleeve, one end are used for mutually fixed with the high-pressure bottle and are tightly connected, have vertically on the connector sleeve
The first through hole for running through and being connected with the high temperature and high pressure environment chamber；
Installation set is fixedly arranged on the other end of the connector sleeve, has the host cavity of closing in the installation set, described
Host cavity is connected with the first through hole；
Power output shaft, the output terminal of the power output shaft are threaded through in the host cavity of the installation set；
Force snesor, the force snesor are the underwater force cell suitable for normal temperature high voltage environment, and the force snesor connects
It is connected on the output terminal of the power output shaft and in the host cavity；
Tensile axis, the axial line of the tensile axis is parallel with the axial line of the power output shaft or overlaps, the tensile axis
One end is fixedly attached on the force snesor, and the other end of the tensile axis through the first through hole and stretches into the height
In the high temperature and high pressure environment chamber of pressure vessel；
Cooling jacket is set on the connector sleeve, and cooling water cavity is formed between the cooling jacket and connector sleeve, described cold
But also there is the intake tunnel and exhalant canal being connected with the cooling water cavity on water jacket.
2. the force measuring device according to claim 1 suitable under high temperature and high pressure environment, it is characterised in that：The installation
The connector portions for having mutually to be fixedly connected with the connector sleeve are put on, are offered in the connector portions for the tensile axis edge
It is axial corresponding through the second through hole, the second through hole connection host cavity and the first through hole.
3. the force measuring device according to claim 2 suitable under high temperature and high pressure environment, it is characterised in that：The collecting
Chamber is divided into the different both sides of second through hole with the first through hole.
4. the force measuring device according to claim 2 suitable under high temperature and high pressure environment, it is characterised in that：The stretching
Axis is plugged in clearance fit respectively in the first through hole and the second through hole.
5. the force measuring device according to claim 2 suitable under high temperature and high pressure environment, it is characterised in that：Described first
Through hole is identical with the aperture of the second through hole and the two center line is set with coinciding.
6. the force measuring device according to claim 1 suitable under high temperature and high pressure environment, it is characterised in that：The connection
There are two collar flange, axially spaced-apart setting of two collar flanges along the connector sleeve, institutes for tool in the outside circumference of set
The cooling jacket stated hermetically is set on the collar flange described in two, the inside peripheral wall of the cooling jacket, the connection
The cooling water cavity is formed between the outer perimeter wall of set and two collar flanges.
7. the force measuring device according to claim 1 suitable under high temperature and high pressure environment, it is characterised in that：The installation
Set is wholely set with the connector sleeve or the installation set is separately set with the connector sleeve and is fixed by helicitic texture and connected
It connects.
8. the force measuring device according to claim 1 suitable under high temperature and high pressure environment, it is characterised in that：The power
Output shaft is self-balancing tensile axis, and the mounting base of the self-balancing tensile axis is fixedly connected with the installation set, the self-balancing
It is connected to dynamic sealing between the output terminal of tensile axis and the installation set.
9. the force measuring device according to claim 1 suitable under high temperature and high pressure environment, it is characterised in that：The installation
It puts on and is additionally provided with cable outlet, cable sealed joint, the signal output cable of the force snesor are equipped at the cable outlet
Connect with the cable sealed joint and protruding.
10. the force measuring device according to claim 1 suitable under high temperature and high pressure environment, it is characterised in that：Described
High-pressure bottle is autoclave, and the autoclave includes autoclave body and kettle cover, and the connector sleeve is threadedly secured in the kettle cover
On, the pilot hole passed axially through for the tensile axis is offered on the kettle cover, is arranged in the tensile axis clearance fit
In the pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457472.5U CN207379812U (en) | 2017-11-03 | 2017-11-03 | A kind of force measuring device suitable under high temperature and high pressure environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721457472.5U CN207379812U (en) | 2017-11-03 | 2017-11-03 | A kind of force measuring device suitable under high temperature and high pressure environment |
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| Publication Number | Publication Date |
|---|---|
| CN207379812U true CN207379812U (en) | 2018-05-18 |
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ID=62334095
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721457472.5U Active CN207379812U (en) | 2017-11-03 | 2017-11-03 | A kind of force measuring device suitable under high temperature and high pressure environment |
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| CN (1) | CN207379812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589008A (en) * | 2017-11-03 | 2018-01-16 | 苏州热工研究院有限公司 | A kind of force measuring device being applied under high temperature and high pressure environment |
| CN108981984A (en) * | 2018-07-02 | 2018-12-11 | 温州大学 | For the load-measuring device under hot conditions |
-
2017
- 2017-11-03 CN CN201721457472.5U patent/CN207379812U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589008A (en) * | 2017-11-03 | 2018-01-16 | 苏州热工研究院有限公司 | A kind of force measuring device being applied under high temperature and high pressure environment |
| CN107589008B (en) * | 2017-11-03 | 2023-08-22 | 苏州热工研究院有限公司 | Force measuring device suitable for under high temperature high pressure environment |
| CN108981984A (en) * | 2018-07-02 | 2018-12-11 | 温州大学 | For the load-measuring device under hot conditions |
| CN108981984B (en) * | 2018-07-02 | 2020-12-29 | 温州大学 | Load measuring device for high-temperature conditions |
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