CN104569041B - Compression produced heat detector - Google Patents
Compression produced heat detector Download PDFInfo
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- CN104569041B CN104569041B CN201510005260.2A CN201510005260A CN104569041B CN 104569041 B CN104569041 B CN 104569041B CN 201510005260 A CN201510005260 A CN 201510005260A CN 104569041 B CN104569041 B CN 104569041B
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- sample
- heat generation
- compression heat
- compression
- temperature sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention relates to a compression produced heat detector. The compression produced heat detector comprises a detection unit, wherein the detection unit comprises a perpendicular compression device and a perpendicular compensation device; the perpendicular compression device comprises a drive motor, an eccentric adjusting mechanism, a drive lever and an upper pressure plate, wherein the drive motor drives the upper pressure plate to compress a rubber test sample by virtue of the eccentric adjusting mechanism and the drive lever; the perpendicular compensation device comprises a test sample chassis and an adjusting plate which are connected with each other in a universal connection way, when a lever is unbalanced, the lever is always perpendicular to an adjusting plate, and the test sample chassis always applies an upward force perpendicular to the test sample.
Description
Technical field
The present invention relates to a kind of elastomeric material compression heat generation detector, particularly for detecting rubber in dynamic alternating download
Lotus or the device of the lower heat phenomenon of strain.
Background technology
The index that heat phenomenon of the rubber under dynamic alternate load, always research worker are concerned about.In actual applications,
The inner heat of various tires and feed belt in high-speed cruising, the viscoelastic damping of vibration damping, deadener and its structure are made
With caused by being directed to material hysteresis effect institute, energy loss is analyzed.
Existing Goodrich rubber compression heat generation testing machine applies certain pressure to sample by an inertia lever system
Contracting load, and the periodical high-frequency compression with regulation amplitude is applied by a drive system to sample, in room temperature or it is higher than
Sample compression fatigue temperature rise within a certain period of time and fatigue life are determined under room temperature condition.It is 30～85IRHD suitable for hardness
Vulcanite.
Existing compression heat generation instrument principle is as shown in figure 1, structural map is as shown in Fig. 2 the centrage of sample 1 is to balance pivot
3 distance is 127 ± 0.5mm, and the centrage of load weight thallium 5 to the distance of balance pivot 3 is 288 ± 0.5mm.Sample is in load
Under effect, reciprocating compression is driven by top board, and due to sizing material internal resistance and heat.Compression load suffered by sample is to adopt balance
Lever balance compensation principle, and by lever balance adjusting apparatus 6 maintaining the balance of lever.Its mechanical model is as shown in Figure 3.
The shortcoming of existing compression heat generation detector is mainly manifested in：
1., because of the mechanical realization problem of this testing machine, sample discontinuity, balance thick stick are often resulted in use
The balanced compensated sample lower surface of bar, due to balance pivot it is misaligned with sample support point, when being caused due to the weight difference for sticking together in front and back
When lever produces the inclination of certain angle α, it is not parallel with the upper surface for bearing pressure to cause sample lower surface, bears car with wheel
Body Gravity Models, periodically bears vehicle body and is compressed with deviation, it is impossible to which accurate simulation goes out actual condition such as Fig. 4 under experimental conditions
(weight of G1 is much larger than G2).
2. offset is inaccurate.Compression is vertically oriented, and compensation is incline direction.Equally, as shown in figure 4, rubber
What the compression that sample is subject to was vertically oriented, but the compensation produced by lever is incline direction, compensation direction and vertical pressure
It is in α angles between contracting direction.
3. core central temperature accurately can not be measured in real time.Now the equipment of the construction is most by after the completion of test being
Carving and taking out sample, the method measurement internal temperature rise of rubbery sample is inserted with needle-like temperature sensor, this operation can exist certain
Temperature loss.Separately there is equipment to drill by pre-buried temp.-sensing wire during sulfuration or by sample, temperature measuring wire is filled in sample.Sulfuration
Method cannot guarantee sample in sulfidation, temperature line be always positioned at vulcanite center (because in sulfidation sample extruding,
Unnecessary scrap rubber is removed, and can cause temp.-sensing wire change in displacement, disalignment), and using the method for punching, for aperture
Size particularly important (Kong Tai great, temp.-sensing wire easily come off, Kong Tai little, it is impossible to which temp.-sensing wire " is filled in " sample center), while examination
During undergoing dither, compression in sample process of the test, the position of a from Fig. 5 of temp.-sensing wire 7 moves to the position of b,
Also the temp.-sensing wire filled in can be caused to deviate sample center, as shown in Figure 5 because of factors such as frictions.
The content of the invention
For the problem that above-mentioned existing instrument is present, the present invention enters to existing Goodrich rubber compression heat generation testing machine
Improvement is gone, sample uniform force can be made after improvement, the defect of existing equipment is overcome.
A kind of compression heat generation detector, which includes a detector unit, and the detector unit includes vertical compression device, vertical benefit
Repay device；The vertical compression device includes platen on a driving motor, an eccentric adjustable mechanism, transmission levers and sample, passes
Galvanic electricity machine drives platen on sample to be compressed rubbery sample by eccentric adjustable mechanism and transmission levers；The VCP
Device include a sample chassis and be connected with lever, perpendicular to lever and the device (adjustment disk) that can adjust up and down, between the two
Using universal connected mode.
Sample chassis is passed through environmental cabinet bottom and is coordinated with environmental cabinet bottom gap by linear bearing, adjustment disk centrage
With the centrage on sample chassis point-blank, in the cavity of the embedded lever of adjustment disk, tray bottom is adjusted by decrement tune
Section screw connection is positioned with setting alignment pin on the inwall of level cavity in the bottom of level cavity, the side of adjustment disk.
The present invention can not accurately measure the problem of core central temperature in real time for prior art, further make and changing
Enter, the equipment after improvement can accurately measure rubber internal temperature rise.
A kind of compression heat generation detector, also including core temperature sensor synchronizer, the core temperature sensor is same
Step device includes core temperature sensor, slide block, guide rail, baffle plate and bearing module.
In order that the point for measuring temperature of core temperature sensor is always positioned at the center of the sample after punching, the present invention also does
Following improvement：
Described core temperature sensor can be both vertically and horizontally being moved and adjusted relative to sample, excellent
Choosing, present invention employs following specific design：Described guide rail is arranged on the inside of baffle plate, and the core temperature sensor passes through
Screw is fixed on slide block one end, and the slide block other end is coordinated with slide, freely can live up and down with being compressed on guide rail for sample
It is dynamic, the adjusting means for adjusting core temperature sensor horizontal position is set on the outside of baffle plate.Adjusting means includes being arranged on outside baffle plate
The push and pull bar of side and the gripper shoe of baffle plate connection, carry the bearing module of gripper shoe, and the bearing module is set in level silk
On thick stick, the horizontal screw lead is fixed on compression heat generation detector by support, is capable of achieving moving in front and back for core temperature sensor
It is dynamic.
In such scheme, the synchronizer of core temperature sensor is located at the rearward position of environmental cabinet.
In such scheme, the central temperature and bottom temp of sample can be detected simultaneously.
In such scheme, the bottom temp is the thermal sensitive piece measurement by being placed at sample center chassis.
The compression heat generation detector of the present invention has the following advantages：
(1) vertical direction compression
As seen in figs. 7 and 11, when driving motor 37 is moved back and forth with movable eccentric wheel 29 and actuating device 27, eventually
The test of sample reciprocating compression is driven by platen 15 on the sample that is connected with transmission levers 10.
(2) vertical direction compensation
As equipment is when sample 1 is just positioned over test base plate 12, front hanging stone roller 39, thick stick are overweighted as stone roller 38 is hung after detector
Bar 22 is in imbalance state, and is Hard link in prior art between sample chassis and lever 22, and both are vertical all the time, work as thick stick
When bar 22 is unbalance, it is not parallel state between platen 15 and the two faces of sample chassis that can cause on sample, causes sample institute
The power received is not such as Fig. 2 and Fig. 4 all the time vertically upward.
In consideration of it, original mechanical realization is improved by the present invention, by sample chassis of the prior art and lever 22
Between Hard link be changed to flexible connection, will sample of the prior art place chassis 11 and be changed to up and down from the form of a post
Two sections of posts, two sections post are contacted by ball and ball seat, it is preferred that the bottom of the preceding paragraph is the semicircle of protrusion, and is connected therewith
Second half for connecing is the semicircle for falling in, such as Fig. 6 and Figure 11, after transformation, original sample chassis is divided into upper and lower two parts, respectively
Sample chassis 12 and the adjustment disk 19 adjusted about 22 perpendicular to lever being connected with lever 22, between the two using universal connection
Mode, when lever is unbalance, lever 22 is vertical all the time with adjustment disk 19, sample chassis 12 all the time to sample vertically upward
Power, as shown in Figure 8.
(3) central temperature and bottom temp of sample 1 can be detected simultaneously, and core temperature sensor 33 is installed on slide block 31,
Guide rail 9 that can be in Fig. 9 ensures to move up and down in sample compression process, prevents during 1 compression of sample because deformation is led
Core temperature sensor 33 is caused to deviate the position of 1 core of sample, the set core temperature measuring system is located at the rear side of environmental cabinet 25,
Such as Figure 11.
Accompanying drawing and explanation
Fig. 1 is compression heat generation detector fundamental diagram in prior art；
Fig. 2 is compression heat generation detector structural map in prior art；
Fig. 3 is compression heat generation detector poised state mechanical model in prior art；
Fig. 4 is the not parallel schematic diagram of sample upper and lower surface in prior art；
Fig. 5 is thermometric line change in location schematic diagram in prior art；
Fig. 6 is improvement of the present invention for existing compression heat generation sample for testing machine force unbalance；
Fig. 7 is the diagram of gears of the present invention；
Fig. 8 is the sample force analysis figure after the present invention is improved；
Fig. 9, Figure 10 are the middle temperature measuring equipments of compression heat generation detector of the present invention；
Figure 11 is the general assembly drawing of present device.
In figure, 1 is sample, and 3 is balance pivot, and 5 is load heavily cutting, and 6 is lever balance adjusting apparatus, and 9 is guide rail, and 10 are
Transmission levers, 11 is that sample places chassis, and 12 is sample chassis, and 13 is linear bearing, and 15 is platen on sample, and 17 is temperature-sensitive
Piece, 19 is adjustment disk, and 20 is decrement set screw, and 21 is alignment pin, and 22 is lever, and 24 is temperature control system, and 25 is environmental cabinet,
27th, 28 is actuating device, and 29 is eccentric, and 31 is slide block, and 32 is screw, and 33 is core temperature sensor, and 34 is horizontal screw lead,
35 is gripper shoe, and 36 is bearing module, and 37 is driving motor, and 38 hang stone roller for rear, and 39 cut or polish jade with an emery wheel for front hanging, and 41 is baffle plate, and 42 is push-and-pull
Handle, 50 is support, and 60 is handwheel, and 61 is lever balance device, and 62 are compression amount detecting device.
Specific embodiment
A kind of compression heat generation detector, which includes a detector unit, and the detector unit includes vertical compression device, vertical benefit
Repay device；The vertical compression device includes pressing on a driving motor 37, an eccentric adjustable mechanism, transmission levers 10 and sample
Disk, driving motor 37 drive platen 15 on sample to be compressed rubbery sample by eccentric adjustable mechanism and transmission levers 10；
The VCP device include a sample chassis and be connected with lever, perpendicular to lever and can adjust up and down device (adjust
Disk 19), between the two using universal connected mode
Sample chassis 12 is passed through environmental cabinet bottom and is coordinated with 25 bottom gap of environmental cabinet by linear bearing 13, adjustment disk
Point-blank, adjustment disk 19 is embedded in the cavity of lever 22 centrage on 19 centrages and sample chassis 12, adjustment disk 19
Bottom is connected to the bottom of 22 cavity of lever by decrement set screw 20, and the side of adjustment disk 19 is interior with 22 cavity of lever
Arrange alignment pin 21 to be positioned on wall.
Power in such scheme suffered by sample 1, when being rotated by driving motor 37, band movable eccentric wheel 29 drives connection transmission
The actuating device 27 and 28 of lever 10, it is final to drive platen 15 on sample to move back and forth, so that sample 1 constantly compresses.
In such scheme, front hanging stone roller 39 and rear stone roller 38 of hanging are carried in sample two ends respectively, give because of weight difference in front and back
Sample 1 loads the power of certain load, and sample 1 causes 22 disequilibrium of lever, by lever balance adjusting apparatus because of stress deformation
6 drive adjustment disks 19 move up and down, and so as to ensure that lever 22 is balanced, lever balance adjusting apparatus 6 include detecting and show lever
The compression amount detecting device 62 of the lever balance device 61 and detection recording compressed amount of state.
In such scheme, the bottom temperature rise value of sample 1 is by being placed on the thermal sensitive piece 17 of the center on sample chassis 12
Measurement sample bottom temperature rise in real time, sample central temperature are realized measuring in real time by the temperature measurement system of Figure 10.
In foregoing invention, the central temperature measuring system of sample 1 as shown in Figure 11, behind environmental cabinet 25,
Ring. the rear side of border case 25 excavates a hole coincideing with temperature measuring equipment baffle plate 41, and (to ensure environmental cabinet temperature, baffle plate 41 is using heat-insulated
Material), core temperature sensor 33, slide block 31, guide rail 9, baffle plate 41, gripper shoe 35 and bearing module 36 composition temp measuring system,
When need to carry out the measurement of sample central temperature, only need to push the system to environmental cabinet, make baffle plate 41 connect with 25 shell of environmental cabinet
Touch.
The core temperature sensor 33 of sample central temperature measuring mechanism core temperature is fixed on slide block 31 by screw 32
One end, 31 other end of slide block are slidably matched with guide rail 9, and slide block 31 can be freely up and down on the rail 9 with the compression of sample.Pressure
Contracting heat detector shell upper carries parallel horizontal screw lead 34 by support 50, and bearing module 36 is set in horizontal screw lead 34
On, gripper shoe 35 and temp measuring system are carried, push and pull bar 42 is set on the outside of the baffle plate 41 of temp measuring system, by adjusting push-and-pull handle
Handss, are capable of achieving the movable of core temperature sensor.
The sensor 33 of core temperature can arbitrarily adjust its position for being located at thermostatic chamber, when need to carry out central temperature measurement
When, the distance of sample center chassis and 41 inwall of baffle plate need to be only measured, length stretched out by regulation core temperature sensor 33
Degree, it is ensured that the point for measuring temperature of core temperature sensor 33 is always positioned at the center of the sample 1 after punching, core temperature sensor
33 materials are harder, can easily insert and be drilled in the sample of aperture, while the leaning against on environmental cabinet 25 tightly of baffle plate 41, these are all
Ensure that the certainty of measurement of sample central temperature.
As seen in figs. 7 and 11, when lever imbalance state, sample stress will change, but due to sample bottom in Fig. 6
The presence of disk 12 and adjustment disk 19 so that whole system sample stress is all the time vertically upward.
Whole system detection process：
1. eccentric 29 is adjusted, makes platen 15 on sample be in the peak inside environmental cabinet 25, while adjusting adjustment disk
19, the bottom for making sample chassis 12 be located inside environmental cabinet 25 gives sample 1 reserved most enough placement sample spaces.
2. bit bore is used, is drilled at the center of sample 1.
3., by temperature control system 24, make 25 internal temperature of whole environmental cabinet uniform, reach design temperature, sample 1 is placed on
30 minutes are adjusted in environmental cabinet 25.
4. push and pull bar 42 is held, is drawn to the direction away from environmental cabinet 25, core temperature sensor 33 is inserted into sample aperture
In, until it reaches sample center, push push and pull bar 42 position of environmental cabinet 25 to, until baffle plate 41 is tight with environmental cabinet 25
Patch, while sample vertical is placed on sample chassis 12.
5. sample chassis 12 is increased by adjusting handle 60, give sample 1 applying power, at the same time, platen 15 on sample
Presence make lever tend to balance, lever balance device 61 is detected and is shown, meanwhile, compression amount detecting device 62 detect and record
Decrement, completes Static Compression.
6. adjustment disk 19 is adjusted, and sample chassis 12 declines, and discharges certain stroke to sample 1, and now lever is unbalance, compression
The detection of amount detecting device 62 recording compressed amount.
7. driving motor 37 is started, when driving motor 37 is moved back and forth with movable eccentric wheel 29 and actuating device 27, finally
Sample reciprocating compression can be driven to test by platen 15 on the sample that be connected with transmission levers 10.
8. the sample bottom temp sensor and core temperature sensor 33 positioned at 12 center of sample chassis is same by software
Step records temperature variations.
Claims (7)
1. a kind of compression heat generation detector, it is characterised in that：Including a detector unit, the detector unit includes that vertical compression is filled
Put, VCP device；The vertical compression device includes a driving motor, an eccentric adjustable mechanism, transmission levers and sample
Upper platen, driving motor drive platen on sample to be compressed rubbery sample by eccentric adjustable mechanism and transmission levers；Institute
Stating VCP device includes a sample chassis and adjustment disk, between the two using universal connected mode.
2. compression heat generation detector according to claim 1, it is characterised in that：Also include that core temperature sensor is synchronously filled
Put, the core temperature sensor synchronizer includes core temperature sensor, slide block, guide rail, baffle plate and bearing module.
3. compression heat generation detector according to claim 2, it is characterised in that：The guide rail is arranged on the inside of baffle plate, institute
State core temperature sensor to be screwed in slide block one end, the slide block other end is coordinated with slide, can be with sample
Freely up and down, the adjusting means of setting regulation core temperature sensor horizontal position on the outside of baffle plate is compressed on guide rail.
4. the compression heat generation detector according to claim 3, it is characterised in that：Adjusting means includes being arranged on the outside of baffle plate
Push and pull bar and baffle plate connection gripper shoe, carry the bearing module of gripper shoe, the bearing module is set in horizontal screw lead
On, compression heat generation detector shell upper passes through rack bearing horizontal screw lead.
5. the compression heat generation detector according to any one of claim 2-4, it is characterised in that：The core temperature sensor
Synchronizer is located at the rearward position of environmental cabinet.
6. compression heat generation detector according to claim 1, it is characterised in that：The compression heat generation detector can be simultaneously
The central temperature and bottom temp of detection sample.
7. compression heat generation detector according to claim 6, it is characterised in that：The bottom temp is by being placed on examination
Thermal sensitive piece measurement at sample center chassis.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005260.2A CN104569041B (en) | 2015-01-07 | 2015-01-07 | Compression produced heat detector |
| MYPI2017702469A MY190491A (en) | 2015-01-07 | 2015-12-24 | Compression and heat-generation detector |
| PCT/CN2015/098679 WO2016110191A1 (en) | 2015-01-07 | 2015-12-24 | Compression heating detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510005260.2A CN104569041B (en) | 2015-01-07 | 2015-01-07 | Compression produced heat detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104569041A CN104569041A (en) | 2015-04-29 |
| CN104569041B true CN104569041B (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510005260.2A Active CN104569041B (en) | 2015-01-07 | 2015-01-07 | Compression produced heat detector |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN104569041B (en) |
| MY (1) | MY190491A (en) |
| WO (1) | WO2016110191A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569041B (en) * | 2015-01-07 | 2017-04-26 | 怡维怡橡胶研究院有限公司 | Compression produced heat detector |
| CN106872106A (en) * | 2017-04-12 | 2017-06-20 | 中国地震局地震研究所 | Suitable for the thrust balancing device of sloping platform Continuous Compensation |
| CN110454976B (en) * | 2019-09-10 | 2024-04-12 | 北京民利储能技术有限公司 | Hot water supply device combining ground source heat pump unit and electric boiler |
| CN112051293B (en) * | 2020-09-25 | 2024-09-03 | 陕西科技大学 | Device and method for guiding out displacement based on lever principle to measure shrinkage temperature of leather |
| CN114770207A (en) * | 2022-05-30 | 2022-07-22 | 衢州学院 | Double-spindle part machining precision data acquisition device for numerical control machine tool |
| CN116748903B (en) * | 2023-07-19 | 2024-01-23 | 南京奥都自动化设备有限公司 | Automatic production line of electric bicycle controller |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204330648U (en) * | 2015-01-07 | 2015-05-13 | 怡维怡橡胶研究院有限公司 | A kind of compression heat generation detector |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3262883B2 (en) * | 1993-03-29 | 2002-03-04 | 株式会社ブリヂストン | Rubber sample calorific value measuring device |
| JP3332284B2 (en) * | 1994-03-28 | 2002-10-07 | 株式会社ブリヂストン | Hydraulic servo flexometer |
| US5569858A (en) * | 1994-05-16 | 1996-10-29 | The B. F. Goodrich Company | Viscoelastic material testing system |
| JPH08285753A (en) * | 1995-04-12 | 1996-11-01 | Bridgestone Corp | Thermal fatigue measuring method for viscoelastic body and servo flexometer |
| JP4155355B2 (en) * | 2003-10-21 | 2008-09-24 | 横浜ゴム株式会社 | Durability test method for laminate of resin film and rubber |
| CN101435786B (en) * | 2007-11-16 | 2011-06-22 | 富准精密工业(深圳)有限公司 | Hot pipe performance detecting device |
| CN101696920B (en) * | 2009-10-27 | 2011-08-03 | 锦州万友机械部件有限公司 | Fatigue testing device for lateral dynamic bending of piston rod of vibration damper |
| CN203838086U (en) * | 2014-02-25 | 2014-09-17 | 淮安智祥科技有限公司 | Rubber dynamic compression themogenesis instrument |
| CN104569041B (en) * | 2015-01-07 | 2017-04-26 | 怡维怡橡胶研究院有限公司 | Compression produced heat detector |
-
2015
- 2015-01-07 CN CN201510005260.2A patent/CN104569041B/en active Active
- 2015-12-24 MY MYPI2017702469A patent/MY190491A/en unknown
- 2015-12-24 WO PCT/CN2015/098679 patent/WO2016110191A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204330648U (en) * | 2015-01-07 | 2015-05-13 | 怡维怡橡胶研究院有限公司 | A kind of compression heat generation detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104569041A (en) | 2015-04-29 |
| MY190491A (en) | 2022-04-24 |
| WO2016110191A1 (en) | 2016-07-14 |
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