CN211317578U - Equipment for testing service life of temperature sensing element through pressure - Google Patents
Equipment for testing service life of temperature sensing element through pressure Download PDFInfo
- Publication number
- CN211317578U CN211317578U CN201922356962.1U CN201922356962U CN211317578U CN 211317578 U CN211317578 U CN 211317578U CN 201922356962 U CN201922356962 U CN 201922356962U CN 211317578 U CN211317578 U CN 211317578U
- Authority
- CN
- China
- Prior art keywords
- positioning seat
- temperature
- workbench
- testing
- temperature sensing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 6
- 239000012188 paraffin wax Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses a device for testing the service life of a temperature sensing element through pressure, which comprises a workbench and a control electrical box arranged on the workbench, wherein the workbench is provided with a heating oil groove and a heating device, the heating device comprises a heating pipe, and the heating pipe extends into the heating oil groove; still be provided with the mechanism of exerting pressure in the workstation, the mechanism of exerting pressure includes the base, is provided with down air cylinder, positioning seat on the base, is provided with the briquetting on the positioning seat, is provided with the elastic drive piece between positioning seat and the briquetting, and the elastic drive piece makes the briquetting have the motion trend of keeping away from the positioning seat all the time, and the air cylinder of exerting pressure orders about the briquetting and moves to being close to the positioning seat. The utility model has the advantages of it is following and effect: the heating oil groove and the pressure applying mechanism are arranged on the workbench, so that the service life of the temperature sensing element can be effectively tested, the test is more convenient, and the reliability is higher; a heat circulating pump is adopted to keep the temperature distribution uniform; the temperature sensing element can be positioned by arranging the abutting structure in the mounting hole.
Description
Technical Field
The utility model relates to a test equipment technical field, in particular to equipment through pressure test temperature-sensing element life-span.
Background
The life test of the temperature sensing element is a method for researching the life characteristics of the temperature sensing element, is one of the most important items in the reliability test, simulates the actual working condition during the test, places the product under the specific test condition, inspects the rule that the failure of the product changes along with the time, and better judges the working life of the product in the actual application.
The common temperature sensing element comprises a shell, a temperature sensing medium is filled in an inner cavity of the shell, a push rod is movably arranged on the shell, one end of the push rod extends into the shell, the other end of the push rod extends out of the shell, the push rod is outwards pushed out when the temperature sensing medium is heated and expanded, and the push rod can be pushed into the shell to reset through reverse force application. Therefore, the simulation working condition of the temperature sensing element life test is mainly related to temperature change and the pressed times. However, in the prior art, a device for testing the service life of the temperature sensing element according to the pressed times is lacked, so that the temperature sensing element can be replaced in time before being completely damaged in the using process.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a through equipment in pressure test temperature-sensing element life-span, have the effect that can effectively test the temperature-sensing element life-span.
The above technical purpose of the present invention can be achieved by the following technical solutions: a device for testing the service life of a temperature sensing element through pressure comprises a workbench and a control electrical box arranged on the workbench, wherein a heating oil tank and a heating device are arranged on the workbench, the heating device comprises a heating pipe, and the heating pipe extends into the heating oil tank; still be provided with the mechanism of exerting pressure in the workstation, the mechanism of exerting pressure includes the base, is provided with down air cylinder, positioning seat on the base, is provided with the briquetting on the positioning seat, is provided with the elastic drive piece between positioning seat and the briquetting, and the elastic drive piece makes the briquetting have the motion trend of keeping away from the positioning seat all the time, and the air cylinder of exerting pressure orders about the briquetting and moves to being close to the positioning seat.
By adopting the technical scheme, during testing, gearbox oil is poured into a heating oil tank, a heating device is started, the gearbox oil is heated through a heating pipe, then a temperature sensing element to be tested is vertically placed on a positioning seat, a pressing mechanism is integrally placed in the heating oil tank, the outer wall of the temperature sensing element is contacted with the gearbox oil, a pressing cylinder is started to start testing, an acting force is generated on a pressing block when the pressing cylinder is pressed downwards, the pressing block is pressed downwards towards the positioning seat, a push rod of the temperature sensing element is pressed into a shell of the temperature sensing element, when a piston rod of the pressing cylinder is lifted upwards, the pressing block is driven to move upwards by the elastic force of an elastic driving piece, and under the action of the high-temperature gearbox oil, the push rod is pushed upwards to reset by the thrust generated by expansion of a temperature sensing medium in the temperature sensing element, so that the pressing times can be conveniently calculated within a certain testing time by only adjusting the, the service life of the temperature sensing element can be effectively tested, the test is more convenient, and the reliability is higher.
The utility model discloses a further set up to: the positioning seat is provided with a guide pillar, the elastic driving piece is set to be a reset spring, the reset spring is sleeved on the guide pillar, one end of the reset spring is abutted to the pressing block, the other end of the reset spring is abutted to the positioning seat, and the pressing block is provided with a through hole for the guide pillar to penetrate out.
Through adopting above-mentioned technical scheme, when the briquetting pushed down to the positioning seat, reset spring was compressed, and at this moment, the through hole was worn out to the guide pillar upper end.
The utility model discloses a further set up to: the guide post is in threaded connection with the positioning seat.
Through adopting above-mentioned technical scheme, because reset spring long-term compression motion back, its natural length reduces gradually, makes the briquetting slope, and the deviation can appear in the push down effect of push down cylinder to it, rotates the guide pillar, adjusts the distance between positioning seat and the base through the guide pillar, makes the briquetting be in parallel state again with the terminal surface of push down cylinder piston rod.
The utility model discloses a further set up to: a thrust block is fixedly connected to a piston rod of the pressing cylinder.
Through adopting above-mentioned technical scheme, the thrust piece can be to pushing down the effort of cylinder to dispersing all around, makes to push down the effect better.
The utility model discloses a further set up to: the workbench is provided with a temperature controller which is electrically connected with the heating device.
The utility model discloses a further set up to: a heat circulating pump is arranged in the workbench and communicated with the heating oil tank.
Through adopting above-mentioned technical scheme, the heat-cycle pump makes the gearbox oil in the heating oil groove form directional circulation, keeps temperature distribution even.
The utility model discloses a further set up to: an air exhaust device is arranged at the top of the workbench.
Through adopting above-mentioned technical scheme, exhaust device can be with the hot-blast discharge in the workstation.
The utility model discloses a further set up to: the positioning seat is provided with a plurality of positioning holes, the side wall of each positioning hole is provided with a mounting hole, a tightening structure is arranged in each mounting hole and comprises a tightening column movably arranged in each mounting hole, a sealing gasket is arranged at the end part, located in each mounting hole, of each tightening column, a filling cavity is formed between each sealing gasket and each mounting hole, and temperature sensing paraffin is arranged in each filling cavity.
Through adopting above-mentioned technical scheme, place the temperature sensing element in the locating hole, when the mechanism of exerting pressure places in the heating oil groove, the locating seat is by the gearbox oil submergence of high temperature, and temperature sensing paraffin is heated the inflation and will support tight post and push out to the mounting hole outward, supports the outer end of tight post and supports the temperature sensing element tight location, and sealed pad can keep apart temperature sensing paraffin and gearbox oil to a certain extent.
To sum up, the utility model discloses following beneficial effect has:
1. the heating oil groove and the pressing mechanism are arranged on the workbench, the pressing mechanism is placed in the heating oil groove in the testing process, the pressing block is pushed by the pressing cylinder to generate pressing force to the temperature sensing element to be pressed down repeatedly, and therefore, in the state of simulating working conditions, the pressing times can be conveniently calculated within certain testing time by only adjusting the pressing speed of the pressing cylinder, the service life of the temperature sensing element can be effectively tested, the testing is convenient, and the reliability is high;
2. by adopting the heat circulating pump, the gearbox oil in the heating oil tank can form directional circulation, and the temperature distribution of each part is kept uniform;
3. the temperature sensing element can be positioned by arranging the abutting structure in the mounting hole.
Drawings
Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.
Fig. 2 is a schematic view showing the overall structure of the pressing mechanism according to the embodiment, in which one guide post is in a separated state.
Fig. 3 is a sectional view of the positioning socket of the embodiment.
Fig. 4 is an enlarged view of the area a in fig. 3.
In the figure: 1. a work table; 11. controlling an electric box; 12. an air exhaust device; 13. heating the oil tank; 14. a temperature controller; 15. a heat circulation pump; 16. a counter; 2. a heating device; 21. heating a tube; 3. a pressure applying mechanism; 31. a base; 32. pressing down the air cylinder; 321. a thrust block; 33. positioning seats; 34. a guide post; 35. briquetting; 351. a through hole; 36. a return spring; 4. positioning holes; 5. mounting holes; 6. tightly abutting against the column; 7. a gasket; 8. temperature sensing paraffin; 9. a temperature sensing element.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A device for testing the service life of a temperature sensing element through pressure comprises a workbench 1, a control electric box 11 is arranged on the workbench 1, an air exhaust device 12 is arranged at the top of the workbench 1, and the air exhaust device 12 can exhaust hot air in the workbench 1. The table top of the workbench 1 is also provided with a heating oil tank 13, a heating device 2 and a pressing mechanism 3, the heating device 2 comprises a heating pipe 21, and the heating pipe 21 extends into the heating oil tank 13. The pressing mechanism 3 can be moved, can be placed on the surface of the workbench 1 when not being tested, and needs to be placed in the heating oil tank 13 when being tested, and gearbox oil is poured into the heating oil tank 13.
As shown in fig. 1 and 2, the pressing mechanism 3 includes a base 31, a vertical downward pressing cylinder 32 is disposed at the top of the base 31, a positioning seat 33 is disposed in the base 31, guide pillars 34 are disposed at four corners of the positioning seat 33, the lower ends of the guide pillars 34 are connected to the positioning seat 33 by a threaded connection, a pressing block 35 is further disposed above the positioning seat 33, through holes 351 for the guide pillars 34 to pass through are correspondingly formed at four corners of the pressing block 35, a return spring 36 is sleeved on the guide pillars 34, the lower end of the return spring 36 abuts against the positioning seat 33, the upper end of the return spring 36 abuts against the pressing block 35, the return spring 36 enables the pressing block 35 to have a movement tendency away from the positioning seat 33 all the time, and the pressing cylinder 32. Fixedly connected with cross-section is circular shape thrust block 321 on the piston rod of air cylinder 32 pushes down, and thrust block 321 can be to pushing down 32 effort to disperse all around, makes the effect of pushing down better.
As shown in fig. 1 and 2, a temperature controller 14 is arranged on the workbench 1, the temperature controller 14 is electrically connected with the heating device 2, a heat circulating pump 15 is arranged below the workbench 1, the heat circulating pump 15 is communicated with the heating oil tank 13, and the heat circulating pump 15 enables transmission oil in the heating oil tank 13 to form directional circulation to keep the temperature distribution uniform. The workbench 1 is further provided with a counter 16, and the counter 16 is connected with the press-down air cylinder 32 and used for counting the press-down times of the press-down air cylinder 32.
As shown in fig. 3 and 4, six positioning holes 4 are formed in the positioning seat 33, a horizontal mounting hole 5 is formed in the side wall of each positioning hole 4, a tightening structure is arranged in each mounting hole 5, each tightening structure comprises a tightening post 6 movably arranged in each mounting hole 5, a sealing gasket 7 is arranged at the end part, located in each mounting hole 5, of each tightening post 6, a filling cavity is formed between each sealing gasket 7 and the inner wall of each mounting hole 5, and temperature sensing paraffin 8 is filled in each filling cavity. The temperature sensing element 9 is placed in the positioning hole 4, when the pressing mechanism 3 is placed in the heating oil groove 13, the positioning seat 33 is immersed by high-temperature gearbox oil, the temperature sensing paraffin 8 expands when heated to push the abutting column 6 out of the mounting hole 5, the temperature sensing element 9 is abutted and positioned by the outer end of the abutting column 6, and the temperature sensing paraffin 8 and the gearbox oil can be isolated by the sealing gasket 7 to a certain extent.
The utility model discloses a basic operating principle does: during testing, the heating device 2 is started, the gearbox oil is heated through the heating pipe 21, then the temperature sensing element 9 to be tested is vertically placed in the positioning hole 4, the pressing mechanism 3 is integrally placed in the heating oil groove 13, the outer wall of the temperature sensing element 9 is in contact with the gearbox oil, the pressing cylinder 32 is started to start testing, the pressing cylinder 32 is pressed downwards to drive the thrust block 321 to generate an acting force on the pressing block 35, the pressing block 35 is pressed downwards towards the positioning seat 33, the push rod of the temperature sensing element 9 is pressed into the shell of the temperature sensing element 9, when the piston rod of the pressing cylinder 32 is lifted upwards, the pressing block 35 is driven upwards by the elastic force of the return spring 36, under the action of the high-temperature gearbox oil, the push rod is pushed upwards out and reset by the thrust generated by expansion of the temperature sensing medium in the temperature sensing element 9, and therefore, the pressing times can be conveniently and clearly counted by the counter 16, the service life of the temperature sensing element 9 can be effectively tested, the test is more convenient, and the reliability is higher.
Since the return spring 36 is gradually reduced in its natural length after a long-term compression movement, the pressing piece 35 is inclined, and the pressing action of the pressing cylinder 32 on it is deviated. Because the guide post 34 is screwed to the positioning seat 33, the guide post 34 is rotated, and the distance between the positioning seat 33 and the base 31 is adjusted by the guide post 34, so that the pressing block 35 and the thrust block 321 of the piston rod of the lower air cylinder 32 are in a parallel state again.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (8)
1. The utility model provides an equipment through pressure test temperature-sensing element life-span, includes workstation (1) and set up in control electronic box (11) of workstation (1), its characterized in that: the workbench (1) is provided with a heating oil tank (13) and a heating device (2), the heating device (2) comprises a heating pipe (21), and the heating pipe (21) extends into the heating oil tank (13); still be provided with mechanism (3) of exerting pressure in workstation (1), mechanism (3) of exerting pressure includes base (31), be provided with down air cylinder (32), positioning seat (33) on base (31), be provided with briquetting (35) on positioning seat (33), positioning seat (33) with be provided with the elastic drive spare between briquetting (35), the elastic drive spare makes briquetting (35) have all the time and keep away from the motion trend of positioning seat (33), air cylinder (32) of exerting pressure orders about briquetting (35) are to being close to positioning seat (33) motion.
2. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 1, wherein: the positioning seat (33) is provided with a guide post (34), the elastic driving part is set to be a return spring (36), the return spring (36) is sleeved on the guide post (34), one end of the return spring (36) is abutted against the pressing block (35), the other end of the return spring (36) is abutted against the positioning seat (33), and the pressing block (35) is provided with a through hole (351) for the guide post (34) to penetrate out.
3. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 2, wherein: the guide post (34) is in threaded connection with the positioning seat (33).
4. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 1, wherein: and a piston rod of the downward pressing cylinder (32) is fixedly connected with a thrust block (321).
5. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 1, wherein: the temperature controller (14) is arranged on the workbench (1), and the temperature controller (14) is electrically connected with the heating device (2).
6. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 1, wherein: a heat circulating pump (15) is arranged in the workbench (1), and the heat circulating pump (15) is communicated with the heating oil groove (13).
7. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 1, wherein: an air exhaust device (12) is arranged at the top of the workbench (1).
8. An apparatus for testing the life span of a temperature-sensitive element by pressure according to claim 1, wherein: a plurality of locating holes (4) have been seted up in positioning seat (33), mounting hole (5) have been seted up to the lateral wall of locating hole (4), be provided with in mounting hole (5) and support tight structure, support tight structure including the activity set up in support tight post (6) in mounting hole (5), support tight post (6) and be located the tip in mounting hole (5) is provided with sealed the pad (7), sealed pad (7) with form between mounting hole (5) and fill the chamber, it is provided with temperature sensing paraffin (8) to fill the intracavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922356962.1U CN211317578U (en) | 2019-12-25 | 2019-12-25 | Equipment for testing service life of temperature sensing element through pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922356962.1U CN211317578U (en) | 2019-12-25 | 2019-12-25 | Equipment for testing service life of temperature sensing element through pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211317578U true CN211317578U (en) | 2020-08-21 |
Family
ID=72082765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922356962.1U Expired - Fee Related CN211317578U (en) | 2019-12-25 | 2019-12-25 | Equipment for testing service life of temperature sensing element through pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211317578U (en) |
-
2019
- 2019-12-25 CN CN201922356962.1U patent/CN211317578U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110595909A (en) | True triaxial test system and method for simulating influence of different temperatures of deep rock mass | |
| TW201346293A (en) | Electric component press bonding device, testing equipment applying the same and press bonding control method | |
| CN107976618B (en) | Working method of BGA packaging test socket | |
| CN112394280B (en) | Testing device for power chip production | |
| CN211317578U (en) | Equipment for testing service life of temperature sensing element through pressure | |
| CN214408428U (en) | Lithium ion battery cell pressure device | |
| CN112444383A (en) | Test bed for measuring reliability of mechanical seal metal corrugated pipe | |
| CN219244988U (en) | Simulation test bed | |
| CN114813355B (en) | Cooling tower filler strength testing arrangement | |
| CN114273893B (en) | Shock absorber cylinder bottom valve assembly fixture | |
| CN216617847U (en) | Test equipment for plunger pump | |
| CN212171605U (en) | Automatic control equipment for microcrystalline glass | |
| CN104777001A (en) | Vertical cylinder liner piston ring friction-wear test device | |
| CN114199416A (en) | Vacuum packaging device | |
| CN215931197U (en) | Air tightness test frame of communication equipment radiator shell | |
| CN211014488U (en) | Micro-channel semiconductor laser testing and aging clamp | |
| CN209356130U (en) | A kind of leakage detection apparatus of motor body | |
| CN211317579U (en) | Equipment for testing service life of temperature sensing element through temperature | |
| CN218470077U (en) | High-temperature pulsating pressure generator | |
| CN219178876U (en) | Durable pressing fixture for vehicle-mounted display screen | |
| CN213749035U (en) | Test bed for measuring reliability of mechanical seal metal corrugated pipe | |
| CN216683403U (en) | Hot melting machine with fool-proof function | |
| CN216285008U (en) | Simulated thyristor heat dissipation test tool | |
| CN220961155U (en) | Corrosion resistance testing device for rubber | |
| CN221326400U (en) | Gas sensor signal detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200821 |