CN202041425U - Testing device for testing high-temperature loading property of aluminum and aluminum alloy electric power equipment of power transmission line - Google Patents
Testing device for testing high-temperature loading property of aluminum and aluminum alloy electric power equipment of power transmission line Download PDFInfo
- Publication number
- CN202041425U CN202041425U CN2010206529406U CN201020652940U CN202041425U CN 202041425 U CN202041425 U CN 202041425U CN 2010206529406 U CN2010206529406 U CN 2010206529406U CN 201020652940 U CN201020652940 U CN 201020652940U CN 202041425 U CN202041425 U CN 202041425U
- Authority
- CN
- China
- Prior art keywords
- temperature
- electric power
- power equipment
- transmission line
- load
- 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 - Lifetime
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 238000012360 testing method Methods 0.000 title abstract description 47
- 239000004411 aluminium Substances 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 239000003921 oil Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a testing device for testing the high-temperature loading property of aluminum and aluminum alloy electric power equipment of a power transmission line. The testing device comprises a control computer, a high-temperature cabinet, an electrohydraulic servo tension tester, a load maintaining and control system and a special clamp for samples, wherein the high-temperature cabinet is controlled by a temperature controller and arranged between an upper clamping head and a lower clamping head of the tension tester, the special clamp comprises an upper pull rod and a lower pull rod, a support base connected with the upper clamping head of the tension tester is arranged at the upper end of the upper pull rod, the lower end of the upper pull rod penetrates through the high-temperature cabinet and is provided with a sample connecting piece, the lower end of the lower pull rod is connected with the lower clamping head of the tension tester, the upper end of the lower pull rod penetrates through the high-temperature cabinet, and the top of the lower pull rod is provided with a sample connecting head. The testing device can perform long-time loading testing for the samples at a high temperature, simulate practical operating environment of the electric power equipment and acquire strength loss rate of the electric power equipment under the high-temperature loading condition, so that relevant testing data and design basis are provided for the high temperature resistant electric equipment.
Description
Technical field
The utility model relates to technical field of measurement and test, relates in particular to electric power equipment high temperature load-carrying properties proving installation, specifically a kind of transmission line of electricity aluminium and aluminium alloy electric power equipment high temperature load-carrying properties proving installation.
Background technology
At present the breakdown strength test to aluminium and aluminium alloy electric power equipment is carried out at normal temperatures in the concerned countries standard, but along with the improving constantly of transmission capacity, and the running temperature of lead and the electric power equipment supporting with it is also in continuous lifting.In the design standards of aluminium and aluminium alloy equipment, check when its intensity is 70 ℃ according to maximum operation (service) temperature, and when equipment matches with heat-resisting wire, its running temperature can reach 200 ℃ the recrystallization temperature (softening temperature) of approaching aluminium and aluminium alloy.And metal material is when at high temperature moving for a long time, and its intensity generally can constantly reduce along with the rising of temperature.
Existing both at home and abroad to the strength test testing machine of transmission line of electricity aluminium and aluminium alloy electric power equipment all for carrying out at normal temperatures, no high-temperature heating equipment, though the part test machine has load to keep function, but its load retention time is all shorter, can't keep higher load for a long time (more than 400 hours).Therefore existing test unit can't truly reflect the breakdown strength of electric power equipment under the actual motion state.
Summary of the invention
To be solved in the utility model is the problems referred to above that prior art exists, aim to provide a kind of follow-on aluminium and aluminium alloy electric power equipment high temperature load-carrying properties device, can carry out short time loading test to sample at normal temperatures, also can satisfy simultaneously at high temperature sample is carried out the long time loading test.
For addressing the above problem, the utility model is by the following technical solutions: transmission line of electricity aluminium and aluminium alloy electric power equipment high temperature load-carrying properties proving installation, comprise control computer, high-temperature cabinet, electro-hydraulic servo tension tester, load retentive control system and sample unit clamp, it is characterized in that described high-temperature cabinet is controlled by temperature controller, and be arranged between the upper grip and lower chuck of tension tester; Described unit clamp comprises upper connecting rod and lower link, described upper connecting rod upper end is provided with the supporting base that is connected with the tension tester upper grip, the lower end of upper connecting rod penetrates described high-temperature cabinet, the end is provided with a sample web member, the lower end of described lower link is connected with the lower chuck of tension tester, the upper end penetrates described high-temperature cabinet, and the top is provided with a sample connector.
Device of the present utility model, under " mechanical load+constant high temperature+long-time " these three conditions, test, the actual motion environment of simulation electric power equipment, obtain the loss of strength rate (with normal temperature under intensity compare) of electric power equipment under high temperature carrying condition, for high temperature resistant electric power equipment provides relevant test figure and design considerations.
The utility model device can be loaded into tested sample the arbitrary load between 12～600kN, be warmed to the arbitrary temperature between room temperature～200 ℃, and stably keep load more than 400 hours, after the load maintenance stage finishes, can continue to load and destroy, obtain tested electric power equipment in uniform temperature, certain load and the breakdown strength after certain retention time until sample.
As further improvement of the utility model, detachable connection between described upper connecting rod and the sample web member.Detachable connection between described lower link and the sample connector.According to dissimilar samples, can change sample web member and sample connector easily.
Further improve as of the present utility model, described upper connecting rod is by inboard rounded channels adjustable cooperate of a spherical ball with described supporting base again.Sphere fit structure between above-mentioned spherical ball and the supporting base can be adjusted to a pair of test power coaxial automatically, to reduce the influence that test power disalignment is brought test findings.
Further improve as of the present utility model, described load retentive control system links to each other with a hydraulic oil cooling system.Because testing machine is when work, its pressure transmits medium (hydraulic oil) and needs under high pressure constantly to flow, and the influence of distribute heat when being subjected to work such as motor, gear-type pump, hydraulic oil is when long-time periodic duty (long-time load hold mode), and its temperature can constantly raise.For this reason, the utility model has been introduced hydraulic oil cooling system.Oil cylinder side one end of load retentive control system is opened two holes near the position and the oil cylinder side other end tip position of bottom, and the former connects the oil-in of cooling system, and the latter connects the oil-out of cooling system.Hydraulic oil constantly carries out heat interchange by cooling system and reaches the cooling purpose, makes the utility model device guarantee the stable of oil temperature when working long hours, and has further improved the reliability of test macro.
Description of drawings
Fig. 1 is the integrally-built synoptic diagram of the utility model device.
Mutual relationship block diagram when Fig. 2 is the utility model device busy between each system.
Fig. 3 is that load keeps system's architecture block diagram.
Fig. 4 is the scheme of installation of high-temperature cabinet 2.
Fig. 5 is the assembling synoptic diagram of testing machine, high-temperature cabinet and unit clamp.
Fig. 6 is the structural representation of unit clamp.
Fig. 7 is the structural representation of upper connecting rod assembly.
Fig. 8 is the assembling synoptic diagram of upper connecting rod assembly.
Fig. 9 is the structural representation of lower link.
Figure 10 is that sample is when being the yoke plate structure and the connection diagram of lower link.
Embodiment
With reference to Fig. 1, transmission line of electricity aluminium of the present utility model and aluminium alloy electric power equipment high temperature load-carrying properties proving installation, comprise control computer 4, high-temperature cabinet 2, electro-hydraulic servo tension tester 1, load retentive control system 7, hydraulic oil cooling system 8 and electric power equipment failing load test unit clamp 3, described high-temperature cabinet 2 is arranged between the upper grip 9 and lower chuck 10 of tension tester 1.
With reference to Fig. 2, in high-temperature cabinet, be provided with a fixing temperature sensor and 10 mobilizable temperature sensors.Described 10 mobilizable temperature sensors are used in the measurement space scope and the temperature value of sample different parts, whether have reached design temperature in order to the various piece of judging tested sample.The signal of described temperature sensor senses is exported to control computer by Temperature sampler and is calculated and handle.Described fixed temperature sensor is used for responding to the temperature inside the box, and signal is exported to temperature controller, controls the temperature inside the box of high-temperature cabinet in certain scope by temperature controller.Temperature controller adopts control able to programme, can heating rate and temperature hold-time be set segmentation, can realize that the gradient of temperature raises and circulation.
Finishing the required load of test is provided by the electro-hydraulic servo tension tester.Can be for the warranty test machine at the steady operation under long-time, the top load condition, the utility model has been introduced hydraulic oil cooling system 8.The oil circuit UNICOM of described hydraulic oil cooling system 8 and load retentive control system 7, and load retentive control system 7 and electro-hydraulic servo tension tester 1 oil circuit UNICOM, like this, hydraulic oil constantly carries out heat interchange by cooling system and reaches the cooling purpose.
With reference to Fig. 3, need sample is applied a permanent load in the high temperature load-carrying properties test process of electric power equipment, and keep this load will be above 400 hours, above-mentioned condition is provided by load maintenance system.Load in the utility model keeps system to be made up of displacement transducer, pulling force sensor and computer control loading dynamic compensating system.Change of shape by the displacement sensor sample, load fluctuation by pulling force sensor perception sample, load dynamic compensating system in the computing machine is imported in the two variation simultaneously, export compensating signal to electrohydraulic servo valve by computer control system, by the oil inlet quantity size of electrohydraulic servo valve controlled pressure oil cylinder, thus the Real-time and Dynamic compensation of realization load and stable.
With reference to Fig. 4, high-temperature cabinet 2 is erected on the height-adjustable support, and can move forward and backward on support, makes casing can adapt to difform sample and anchor clamps.Described support comprises vertical guide rail 18 and horizontal cantilever 17, and described high-temperature cabinet 2 is arranged on the support plate 16 of described horizontal cantilever 17, also is provided with limited block 15 on the horizontal cantilever 17.Described vertical guide rail 18 fixes on the ground, and horizontal cantilever 17 can move up and down along vertical guide rail 18, and the back is locked by fixture 19 adjusting to the right place.Described high-temperature cabinet 2 tops and bottom offer the through hole 14 that passes through for unit clamp 3.
With reference to Fig. 5 and Fig. 6, described unit clamp 3 comprises upper connecting rod 12 and lower link 13.Described upper connecting rod 12 upper ends are provided with supporting base 11, are connected with the upper grip 9 of tension tester.The lower end of upper connecting rod 12 penetrates high-temperature cabinet 2, and the end is provided with a web member 22, is used to connect sample 26.The lower end of described lower link 13 is connected with the lower chuck of tension tester 10, and the upper end penetrates high-temperature cabinet 2, and the top is provided with a connector 24, is used for fixing sample 26.
With reference to Fig. 7, Fig. 8, upper connecting rod of the present utility model 12 upper ends are provided with supporting base 11, described supporting base 11 is fitted by the wedge surface of both sides and the wedge surface of testing machine upper grip 9, offer on the supporting base 11 and keep supplying center pit and the rounded channels 23 that pull bar 12 passes through, place a spherical ball 21 in described rounded channels 23, the lower surface of spherical ball 21 also is and the sphere of supporting base rounded channels 23 equal curvatures, the rounded channels 23 of spherical ball 21 and supporting base is fitted.With reference to Fig. 8, the assembling process of upper connecting rod assembly is as follows: upper connecting rod 12 is passed spherical ball 21 and supporting base 11, screw in nut 20 in upper connecting rod 12 upper ends, end face of nut 20 and the applying of spherical ball 21 upper surfaces.
During test, the requirement testing machine is carried in opposite, the equal and opposite in direction of a pair of direction of pull on the sample, when being subjected to departing from power straight down in upper connecting rod 12 lower ends, upper connecting rod 12 will make the direction of upper grip 9 imposed loads do small departing from and adjustment automatically along with lower chuck 10 by the slip between spherical ball 21 and the supporting surface.As seen, the sphere fit structure between above-mentioned spherical ball 21 and the supporting base 11 can be adjusted to a pair of test power coaxial automatically, to reduce the influence that test power disalignment is brought test findings.
Another more simple embodiment, described spherical ball 21 is fixed by the welding or the direct and described upper connecting rod 12 that is threaded, and perhaps both integral formings also can realize adjusting automatically coaxial function.And, can save a hold-down nut, and assembling is also more simple.
With reference to Fig. 7, described upper connecting rod 12 lower ends are connected with web member 22 by screw thread.The shape of described web member 22 designs according to different sample structures.In the present embodiment, sample 26 is a suspension clamp, and web member 22 is square frame shaped anchor clamps.
The framework surface profile of framework 22 and suspension clamp 26 contact portions is machined to the suspension clamp bottom interior surface fits tightly, make be applied to the suspension clamp inside surface be uniformly distributed load but not concentrated stress, match with the real work situation of suspension clamp 26.Simultaneously U type link plate original and that suspension clamp is supporting is replaced to lower link, simplified the assembling process when clamping greatly.And when originally connecting lower link by U type link plate, U type link plate can only stand the single test, can't reuse, when adopting the integral type lower link, the lower link upper end is designed to have enough stressed carrying planes, can use repeatedly and indeformable, simultaneously the lower link lower end is designed to cylindrically, it directly can be clamped on the lower chuck 10 of testing machine.
Operational instances:
Device of the present utility model is used to test a kind of of Birmasil suspension clamp electric power equipment, when being used on iron tower, hanging the high temperature load-carrying properties of lead, at first other annexes of suspension clamp is pulled down, only body is tested.Assemble and be connected according to shown in Figure 6, upper connecting rod 12 and framework 22 by being threaded, are fitted suspension clamp 26 inside surfaces and framework 22 bottoms, lower link 13 is linked to each other with two hangers 27 of suspension clamp by bolt 25.The first half of the Lower Half of upper connecting rod 12, framework 22, suspension clamp 26 and lower link 13 is all included in the high-temperature cabinet 2, and last lower link is that the through hole of Φ 50mm is connected with the last lower chuck 9,10 of testing machine 1 by diameter on the upper and lower surfaces of high-temperature cabinet.After treating that clamping finishes,, and close the door of high-temperature cabinet with the asbestos shutoff of the gap between lower through-hole on the high-temperature cabinet and the pull bar.
Start computing machine and test control program respectively, No. 10 temperature sensors in high-temperature cabinet temperature control system and the high-temperature cabinet, testing machine power supply and servo switch.Setting the required maintenance temperature of test and be 200 ℃ and retention time on high-temperature cabinet control system panel is 101 hours.In the test control program, write the sample loading procedure, as setting the grip separation speed that testing machine at first adopts 10mm/min, when load reaches 5kN, load with the 2mm/min velocity of displacement, and when reaching 50kN, load stops to load, make load remain on 50kN always and also continue 100 hours, after 100 hours, continue to load and destroy until sample, program will write down the curve of sample about " displacement-load " and " time-load " automatically, obtain suspension clamp under 200 ℃ of high temperature, continue to bear 50kN load after 100 hours, the value of its breakdown strength.By to suspension clamp at normal temperatures with high temperature carrying after the breakdown strength contrast, obtain the loss of strength rate of suspension clamp after the high temperature bearing test, the safe operating life of prediction Birmasil suspension clamp after supporting with high temperature resistant wire.
With reference to Fig. 9, another kind of embodiment of the present utility model.The sample web member 22 of described upper connecting rod 12 lower ends is an inverted U-shaped, and the connector 24 of described lower link 13 upper ends is the U-shaped structure.This structure anchor clamps are used for test and connect gold utensil class electric power equipment, as U type link and yoke plate.Sample 26 among Fig. 9 is a U type link, and inverted U-shaped web member 22 is vertical with the opening direction of U-shaped connector 24.The inverted U-shaped web member 22 of upper connecting rod links to each other with the hangers of U type link by bolt 28, and the U-shaped connector 24 of lower link links to each other with the ring body of U type link by bolt 25.
Upper connecting rod 12 and sample web member 22 adopt detachable connection, can change anchor clamps comparatively easily.Screw off as testing the framework anchor clamps that suspension clamp uses, load onto the U-shaped anchor clamps that are used to test yoke plate and get final product.
What should be understood that is: the foregoing description is just to explanation of the present utility model, rather than to restriction of the present utility model, any innovation and creation that do not exceed in the utility model connotation scope all fall within the protection domain of the present utility model.
Claims (9)
1. transmission line of electricity aluminium and aluminium alloy electric power equipment high temperature load-carrying properties proving installation, comprise control computer (4), high-temperature cabinet (2), electro-hydraulic servo tension tester (1), load retentive control system (7) and sample unit clamp (3), it is characterized in that described high-temperature cabinet (2) is controlled by temperature controller, and be arranged between the upper grip (9) and lower chuck (10) of tension tester (1); Described unit clamp (3) comprises upper connecting rod (12) and lower link (13), described upper connecting rod (12) upper end is provided with the supporting base (11) that is connected with tension tester upper grip (9), the lower end of upper connecting rod (12) penetrates described high-temperature cabinet (2), the end is provided with a sample web member (22), the lower end of described lower link (13) is connected with the lower chuck (10) of tension tester, the upper end penetrates described high-temperature cabinet (2), and the top is provided with a sample connector (24).
2. transmission line of electricity aluminium as claimed in claim 1 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation is characterized in that detachable connection between described upper connecting rod (12) and the sample web member (22).
3. transmission line of electricity aluminium as claimed in claim 1 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation is characterized in that detachable connection between described lower link (13) and the sample connector (24).
4. transmission line of electricity aluminium as claimed in claim 1 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation is characterized in that described upper connecting rod (12) is by inboard rounded channels (23) adjustable cooperate of a spherical ball (21) with described supporting base (11).
5. transmission line of electricity aluminium as claimed in claim 1 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation is characterized in that the sample web member (22) of described upper connecting rod (12) is square frame shaped structure.
6. transmission line of electricity aluminium as claimed in claim 1 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation is characterized in that the sample web member (22) of described upper connecting rod (12) is inverted U-shaped, and be described
The sample connector (24) of lower link (13) is the U-shaped structure.
7. as any one described transmission line of electricity aluminium of claim 1-6 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation, it is characterized in that also being provided with hydraulic oil cooling system (8), the oil circuit UNICOM of described hydraulic oil cooling system (8) and described load retentive control system (7).
8. transmission line of electricity aluminium as claimed in claim 7 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation, it is characterized in that being provided with one group of mobilizable temperature sensor in the described high-temperature cabinet (2), described temperature sensor links to each other with control computer by Temperature sampler.
9. transmission line of electricity aluminium as claimed in claim 8 and aluminium alloy electric power equipment high temperature load-carrying properties proving installation is characterized in that described high-temperature cabinet (2) is erected on the height-adjustable support, and can move forward and backward on support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206529406U CN202041425U (en) | 2010-12-10 | 2010-12-10 | Testing device for testing high-temperature loading property of aluminum and aluminum alloy electric power equipment of power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206529406U CN202041425U (en) | 2010-12-10 | 2010-12-10 | Testing device for testing high-temperature loading property of aluminum and aluminum alloy electric power equipment of power transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041425U true CN202041425U (en) | 2011-11-16 |
Family
ID=44968863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206529406U Expired - Lifetime CN202041425U (en) | 2010-12-10 | 2010-12-10 | Testing device for testing high-temperature loading property of aluminum and aluminum alloy electric power equipment of power transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041425U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062713A (en) * | 2010-12-10 | 2011-05-18 | 浙江华电器材检测研究所 | Device for testing high-temperature load-carrying properties of aluminum and aluminum alloy electric power apparatuses of power transmission line |
| CN106501075A (en) * | 2016-10-20 | 2017-03-15 | 云南电网有限责任公司电力科学研究院 | A kind of electric armour clamp wear test fixture and electric armour clamp abrasion tester |
| CN107589019A (en) * | 2017-08-14 | 2018-01-16 | 滁州职业技术学院 | One kind is easy to PVC plastic physical property detection device |
-
2010
- 2010-12-10 CN CN2010206529406U patent/CN202041425U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062713A (en) * | 2010-12-10 | 2011-05-18 | 浙江华电器材检测研究所 | Device for testing high-temperature load-carrying properties of aluminum and aluminum alloy electric power apparatuses of power transmission line |
| CN102062713B (en) * | 2010-12-10 | 2013-04-24 | 浙江华电器材检测研究所 | Device for testing high-temperature load-carrying properties of aluminum and aluminum alloy electric power apparatuses of power transmission line |
| CN106501075A (en) * | 2016-10-20 | 2017-03-15 | 云南电网有限责任公司电力科学研究院 | A kind of electric armour clamp wear test fixture and electric armour clamp abrasion tester |
| CN106501075B (en) * | 2016-10-20 | 2018-11-20 | 云南电网有限责任公司电力科学研究院 | A kind of electric armour clamp wear test fixture and electric armour clamp abrasion tester |
| CN107589019A (en) * | 2017-08-14 | 2018-01-16 | 滁州职业技术学院 | One kind is easy to PVC plastic physical property detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102062713B (en) | Device for testing high-temperature load-carrying properties of aluminum and aluminum alloy electric power apparatuses of power transmission line | |
| CN103790895B (en) | Hydraulic cylinder side force assay device | |
| CN108732035B (en) | High-temperature fretting fatigue life testing method for tenon connection structure | |
| CN202041425U (en) | Testing device for testing high-temperature loading property of aluminum and aluminum alloy electric power equipment of power transmission line | |
| CN201307059Y (en) | Dynamic simulation tester for plastic supporting bearing | |
| CN204649439U (en) | strength testing device | |
| CN106442182A (en) | High-temperature micro-motion fatigue experiment clamping and loading device | |
| CN105277445A (en) | Compact tensile sample creep-fatigue crack propagation testing device | |
| CN105547683A (en) | Lifting lug or hoisting pipe safety performance detection method | |
| CN109507013A (en) | Microcomputer controlled electro-hydraulic servo coordinates load test system | |
| CN201196644Y (en) | Asphalt mixture low-temperature fatigue experiment apparatus | |
| CN109540650A (en) | A kind of modular multi-function self-balancing reaction frame loading device and its application method | |
| CN203658143U (en) | Loading device of high-temperature and high-pressure kettle | |
| CN107884171A (en) | Rail fastening reliability test | |
| CN202229998U (en) | Device for observing and recording fretting friction and abrasion in real time | |
| CN110595910A (en) | Thermal-vibration combined tensile test device based on universal testing machine and test method thereof | |
| CN206459893U (en) | A kind of bolted spherical node bearing capacity fixture | |
| CN108931426A (en) | Fretting fatigue loading device and fretting fatigue testing device | |
| CN207717336U (en) | Suspend the longitudinal tired bench test device of high temperature | |
| CN105588767A (en) | Test piece tensile test system for optical strain field measurement under ultralow temperature environment | |
| CN204200737U (en) | A kind of horizontal deceleration loading device of fretting fatigue of hydraulic loaded | |
| CN107941489B (en) | Simulate the standard section of tower crane reliability test bench of actual condition load | |
| CN103837409B (en) | Testing pulse fatigue machine fatigue experimental device and testing pulse fatigue machine | |
| CN102706758B (en) | Safety pressure lever test apparatus | |
| CN209878478U (en) | Fretting fatigue test fixture device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 310015 Taizhou Road, Zhejiang, China, No. 217, No. Patentee after: Zhejiang Huadian inspection and Research Institute Co., Ltd. Address before: 310015 Taizhou Road, Zhejiang, China, No. 217, No. Patentee before: Zhejiang Huadian Equipment Inspection Institute |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |