CN105067449B - It is a kind of to transmit pulling force and the heat-proof device of pressure - Google Patents
It is a kind of to transmit pulling force and the heat-proof device of pressure Download PDFInfo
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- CN105067449B CN105067449B CN201510463807.3A CN201510463807A CN105067449B CN 105067449 B CN105067449 B CN 105067449B CN 201510463807 A CN201510463807 A CN 201510463807A CN 105067449 B CN105067449 B CN 105067449B
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- linking arm
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- disk
- pulling force
- proof device
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Abstract
Pulling force and the heat-proof device of pressure, including upper and lower linking arm are transmitted the invention discloses a kind of, is connected between the upper and lower linking arm by engineering plastics of the yield strength more than 20MPa, to reduce heat transfer therebetween.The present invention can not only transmit larger pulling force and pressure loading, but also it can effectively reduce the influence of high temperature or low temperature environment to universal testing machine in incubator, so that the force snesor of universal testing machine and hydraulic fluid temperature are stable in normal work stability range, preferably solve the problems, such as that most of heat-proof device currently used for testing machine Mechanical loading can only transmit pulling force and heat-insulated bad.
Description
Technical field
The invention belongs to heat-proof device, and in particular to a kind of to transmit pulling force and the heat-proof device of pressure.
Background technology
Many components of machine are required for working under high temperature or low temperature environment, such as satellite parts, aviation or space flight
Engine blade etc..Therefore, Mechanics Performance Testing of the engineering material such as metal, plastics under high temperature and low temperature is to carry out machinery zero
One of committed step of component materials type selecting.
Mechanics Performance Testing of the engineering material such as most metals, plastics under high temperature and low temperature at present is all in a temperature
Spend to testing test specimen applying power load in controllable sweat box, as shown in Figure 1.In the case where applying big load, connected in Fig. 1
Arm is often metal（Such as 45# steel）Material is process.Because metal material has the larger coefficient of heat conduction, metal linkage arm meeting
So that the force snesor of universal testing machine is heated or is cooled, and then make the measurement of capable load inaccurate.For the ten thousand of hydraulic
Energy testing machine, it is also possible to pass through linking arm and the heat transfer of metallic piston so that universal testing machine section hydraulic oil overheat or mistake
It is cold, trigger testing machine failure.Therefore, it is necessary to increase heat-proof device on the linking arm that incubator is connected with universal testing machine.
The content of the invention
Transmit pulling force and the heat-proof device of pressure it is an object of the invention to provide a kind of, with carry out material high temperature or
When cryogenic mechanics performance is tested, it can effectively weaken the heat transfer between incubator and testing machine.
The present invention's transmits pulling force and the heat-proof device of pressure, including upper and lower linking arm, the upper and lower linking arm it
Between connected by engineering plastics of the yield strength more than 20MPa, to reduce heat transfer therebetween.
The upper linking arm and lower linking arm form by disk and round bar, disk and lower linking arm in upper linking arm
It is attached between disk using some metallic rods；Pass through polytetrafluoroethylene (PTFE) pad between the disk of the metallic rod and upper linking arm
Piece isolation is attached；It is attached between the disk of the metallic rod and lower linking arm by bolt.
The metallic rod is provided with multiple annular grooves, and heat dissipation metal thin slice is equipped with each annular groove.
Beneficial effects of the present invention：
The present invention can not only transmit larger pulling force and pressure, but also can effectively reduce high temperature or low temperature ring in incubator
Influence of the border to universal testing machine so that the force snesor of universal testing machine is stable in the stable model of normal work with hydraulic fluid temperature
Enclose, pulling force and heat-insulated bad can only be transmitted by preferably solving most of heat-proof device currently used for testing machine Mechanical loading
Problem.
Technical scheme is further illustrated below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is material mechanical performance experimental rig schematic diagram under representative temperature controllable environment.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the structural representation at A in Fig. 2.
Fig. 4 is the structural representation at B in Fig. 2.
Embodiment
The heat-proof device for transmitting pulling force and pressure of the present invention as shown in Fig. 2 including upper linking arm 1 and lower linking arm 6,
Upper linking arm 1 is made up of disk 102 and round bar 101, and lower linking arm 6 is made up of disk 602 and round bar 601, in upper linking arm 1
It is attached between the disk 602 of disk 102 and lower linking arm 6 using four metallic rods 4；Metallic rod 4 and the circle of upper linking arm 1
Disk 102 connects as shown in figure 3, metallic rod 4 is not directly contacted with disk 102, but passes through each polytetrafluoroethylene (PTFE) pad up and down
Piece 2 connects, and two relative one end of teflon gasket 2 are equipped with the less step 201 of outside diameter, upper and lower two poly- four
PVF pad 2 is respectively provided in the circular hole of the upper disk 102 of linking arm 1 and above and below disk 102 by its step 201
Face, the upper end of metallic rod 4 are provided with the less threaded joints 401 of outside diameter, and the threaded joints 401 of metallic rod 4 are worn from down
The disk 102 of teflon gasket 2 and upper linking arm 1 up and down is crossed, the screw thread of metallic rod 4 is enclosed on packing ring 403 and nut 404
Metallic rod 4 and disk 102 are fixed on connecting portion 401 so that poly- due to having between the disk 102 and metallic rod 4 of upper linking arm 1
The isolation of tetrafluoroethene pad 2 does not contact directly；The connection of metallic rod 4 and lower linking arm 6 as shown in figure 4, metallic rod 4 with
The disk 602 of linking arm 6 is attached by bolt 405, in order to ensure the relative position of metallic rod 4 and disk 602, in metal
The bottom of bar 4 is provided with the less connecting portion 406 of outside diameter, and the connecting portion 406 of the lower end of metallic rod 4 inserts the circle of disk 602
In hole, then with bolt 405 disk 602 and metallic rod 4 are fixed；Mode is connected by screw bolts between disk 602 and round bar 601,
Before disk 602 and round bar 601 are fixed, round bar 601 can freely rotate relative to disk 602, to adapt to round bar 601 and incubator
The flexible connection of interior experiment specimen holder structure；As shown in Figure 2 and Figure 3, metallic rod 4 is provided with multiple annular grooves 402, each
The substantially semicircular heat dissipation metal thin slice 3 of two panels is equipped with annular groove 402.
In the present invention, the yield strength of polytetrafluoroethylplastic plastic is more than 20MPa, there is preferable mechanical property and thermal insulation
Can, it also can use other engineering plastics with similar performance to substitute, such as ABS plastic, glass fiber reinforced epoxy resin material
Deng.
The said structure of the present invention can not contact directly between linking arm 1 and lower linking arm 6, can effectively drop
Low heat transfer therebetween.Heat dissipation metal thin slice 3 in metallic rod 4 can increase the heat transfer of heat-proof device and air, can
To reduce the heat transfer of upper linking arm 1 and lower linking arm 6, and heat-proof device and surrounding air can be increased by way of ventilation
Heat transfer.
Heat-proof device of the present invention is in use, the round bar 101 of upper linking arm 1 is connected ten thousand respectively with the round bar 601 of lower linking arm 6
Energy testing machine and the clamping device in incubator, set foil gauge 5, and foil gauge 5 is accessed into a strain measurement in each metallic rod 4
Instrument so that the foil gauge resistance of four metallic rods 4 is identical during pretension bolt, to ensure the symmetry of power transmission.
The maximum pull or pressure loading that heat-proof device is born can be according to formulas（1）Estimation, whereinσ y For polytetrafluoroethylene (PTFE)
Yield strength,DFor the maximum outside diameter of teflon gasket 2, d is teflon gasket2 secondary big external diameter（Referring to figure
3）,FThe maximum load that can bear for heat-proof device.
（1）.
Claims (2)
1. a kind of transmit pulling force and the heat-proof device of pressure, it is characterized in that including upper and lower linking arm, the upper and lower linking arm
Between connected by engineering plastics of the yield strength more than 20MPa, to reduce heat transfer therebetween；The upper linking arm and
Lower linking arm is formed by disk and round bar, and some metallic rods are used between the disk of upper linking arm and the disk of lower linking arm
It is attached；Isolated between the metallic rod and the disk of upper linking arm by the pad of the engineering plastics and be attached；Institute
State and be attached by bolt between the disk of metallic rod and lower linking arm.
2. according to claim 1 transmit pulling force and the heat-proof device of pressure, it is characterized in that the metallic rod is provided with
Multiple annular grooves, heat dissipation metal thin slice is equipped with each annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463807.3A CN105067449B (en) | 2015-08-01 | 2015-08-01 | It is a kind of to transmit pulling force and the heat-proof device of pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510463807.3A CN105067449B (en) | 2015-08-01 | 2015-08-01 | It is a kind of to transmit pulling force and the heat-proof device of pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105067449A CN105067449A (en) | 2015-11-18 |
| CN105067449B true CN105067449B (en) | 2017-12-05 |
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ID=54496873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510463807.3A Active CN105067449B (en) | 2015-08-01 | 2015-08-01 | It is a kind of to transmit pulling force and the heat-proof device of pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105067449B (en) |
Citations (5)
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| KR20060063061A (en) * | 2004-12-07 | 2006-06-12 | 현대자동차주식회사 | Test apparatus for buckling of a connecting rod |
| KR20120108787A (en) * | 2011-03-25 | 2012-10-05 | 한국전기연구원 | Fatigue testing machine using transverse flux linear motor |
| CN102830019A (en) * | 2011-12-18 | 2012-12-19 | 西北工业大学 | Tensile synchronous experiment device |
| CN203560278U (en) * | 2013-10-29 | 2014-04-23 | 中国科学院合肥物质科学研究院 | Load-bearing hanger rod for low-heat conduction high-strength superconducting magnet |
| CN204495646U (en) * | 2015-03-31 | 2015-07-22 | 中国飞机强度研究所 | A kind of power load transferring rod |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11326566A (en) * | 1998-05-20 | 1999-11-26 | Mitsubishi Heavy Ind Ltd | Fusion device pyrogenic load structure |
| DE502004010557D1 (en) * | 2003-10-10 | 2010-02-04 | Erico Int Corp | DEVICE COMPRISING A FIBER-REINFORCED PLASTIC PLATE TO TRANSMIT A LOAD THROUGH A HEAT INSULATION LAYER |
| DE102004016799A1 (en) * | 2004-04-06 | 2005-10-27 | Schöck Bauteile GmbH | Component for thermal insulation |
| KR100752635B1 (en) * | 2006-05-02 | 2007-08-29 | 삼성광주전자 주식회사 | Heat exchanger for refrigerator |
| CN201065953Y (en) * | 2007-07-30 | 2008-05-28 | 吴晓立 | High-temperature gate valve |
| CN102798961B (en) * | 2012-06-20 | 2015-04-22 | 西安空间无线电技术研究所 | Laser load for indoor test of laser communication terminal |
| CN204269479U (en) * | 2014-12-29 | 2015-04-15 | 武汉科技大学 | A kind of constant temperature uniaxial drawing loading of universal testing machine |
-
2015
- 2015-08-01 CN CN201510463807.3A patent/CN105067449B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060063061A (en) * | 2004-12-07 | 2006-06-12 | 현대자동차주식회사 | Test apparatus for buckling of a connecting rod |
| KR20120108787A (en) * | 2011-03-25 | 2012-10-05 | 한국전기연구원 | Fatigue testing machine using transverse flux linear motor |
| CN102830019A (en) * | 2011-12-18 | 2012-12-19 | 西北工业大学 | Tensile synchronous experiment device |
| CN203560278U (en) * | 2013-10-29 | 2014-04-23 | 中国科学院合肥物质科学研究院 | Load-bearing hanger rod for low-heat conduction high-strength superconducting magnet |
| CN204495646U (en) * | 2015-03-31 | 2015-07-22 | 中国飞机强度研究所 | A kind of power load transferring rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105067449A (en) | 2015-11-18 |
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