CN107830999B - A kind of fatigue tester suitable for device clamp - Google Patents
A kind of fatigue tester suitable for device clamp Download PDFInfo
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- CN107830999B CN107830999B CN201711061405.6A CN201711061405A CN107830999B CN 107830999 B CN107830999 B CN 107830999B CN 201711061405 A CN201711061405 A CN 201711061405A CN 107830999 B CN107830999 B CN 107830999B
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- slide
- clamp
- device clamp
- frame base
- pull rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention provides a kind of fatigue testers suitable for device clamp, two device clamps to be tested are connected by conducting wire, and the fatigue tester includes the frame base of box, two clamping plates, pull rod, slide, drive rod and the rotating wheel by motor drive；Two clamping plates and two device clamps to be tested correspond, one clamping plate clamps a device clamp to be tested, two clamping plates include the fixed strap being located at the top of frame base and the movable clamp plate being slidably disposed at the top of frame base, the upper end of pull rod is equipped with the movable ring set for wearing conducting wire, the lower end of pull rod is connect with slide, slide is vertically movable to be located on frame base, rotating wheel is equipped with eccentric orfice, one end of drive rod is connect with slide, and the other end of drive rod is connect with eccentric orfice.The present invention is conducive to the military service performance evaluation of device clamp, life appraisal, goods and materials solution formulation, there is important meaning for power network line reliability service, accident prevention.
Description
Technical field
The invention belongs to power equipments to manufacture processing technique field, and in particular to a kind of fatigue examination suitable for device clamp
Test machine.
Background technique
Device clamp is for bus downlead and electrical equipment (such as transformer, breaker, mutual inductor, disconnecting switch, through walls
Casing etc.) outlet terminal connection, using extensive.The outlet terminal of existing frequently-used electrical equipment has copper and two class of aluminum,
And lead-out wire is mostly aluminum stranded conductor or steel-cored aluminium strand, therefore device clamp is divided into aluminum equipment wire clamp and copper-aluminium transition equipment cable clamp two again
A series.Wherein, aluminum equipment wire clamp is divided into compression-type and bolt according to the difference of installation method and structure type, aluminum equipment wire clamp
Type.The wire clamp of every kind of form presses downlead again and installs the difference of electrical equipment terminal angulation, is divided into 0,30,45,90 degree
It is several.
Major province of energy of the Xinjiang as China, possesses numerous important transmission lines of electricity, and safeguards that transmission line safety is especially heavy
It wants.It is so found in recent years by statistical research, certain model alusil alloy device clamp is more in the military service of strong wind area high voltage electricity transmission conductive wire
Secondary generation fracture accident, active time be considerably shorter than the prescribed number of years, but the model alusil alloy device clamp at home its
He is non-, and high wind area is then sufficient for service life.According to existing national standard, " the general skill of GB/T 2314-2008 electric armour clamp
Art condition " in, it is specified that device clamp belongs to contact fitting.And in " GB/T 2317.1-2008 electric armour clamp test method the 1st
Point: mechanical test " in, sliding experiment, tension test and crooked experiment are only included to the test of contact fitting.However it passes through excessively
The reason of model alusil alloy device clamp fracture accident is found in analysis mainly device clamp is swung in high wind area stress, hair
Raw low-cycle fatigue, and then rupture failure.The reason of generation of this low-cycle fatigue is, not when device clamp is produced and designed
Consider fatigue behaviour, unreasonable design structure causes stress raisers, and is on active service in high-frequency harsher wind conditions, is led
Line reciprocally swinging influences and then fatigue rupture occurs.In " DL/T 768.5-2002 electric armour clamp manufacturing quality alumiaum article "
Have no the requirement to fatigue behaviour.It can be seen that not can guarantee in the case where meeting existing national standard using safe.
In order to which link of choosing in a pre-installation is found the problem early, the device clamp that should design producer production carries out entirety
Structural member fatigue test.Therefore, to those skilled in the art, how a kind of fatigue suitable for device clamp is provided
Testing machine, the technical issues of becoming this field urgent need to resolve.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of fatigue tester suitable for device clamp, to equipment
The military service performance of wire clamp is evaluated, and is found the problem, is prevented trouble before it happens early.
In order to solve the above technical problems, the present invention provides a kind of fatigue tester suitable for device clamp, two to
Test equipment wire clamp is connected by conducting wire, frame base, two clamping plates, pull rod, slide, drive rod, Yi Jiyou including box
The rotating wheel of motor drive；Two clamping plates and two device clamps to be tested correspond, and a clamping plate clamping one is to be measured
Device clamp is tried, two clamping plates include the fixed strap being located at the top of frame base and are slidably disposed in frame base
The movable clamp plate at top, the upper end of pull rod are equipped with the movable ring set for wearing conducting wire, and the lower end of pull rod is connect with slide, slide
Vertically movable is located on frame base, and rotating wheel is equipped with eccentric orfice, and one end of drive rod is connect with slide, drive rod
The other end is connect with eccentric orfice.
As an improvement of the above scheme, pull rod is T-shaped, and the both ends of the horizontal mounting arm of pull rod, which are respectively provided with, wears conducting wire
Movable ring set, the lower end of the vertical support arm of pull rod is connect with slide.
As an improvement of the above scheme, frame base is equipped with the vertical track cooperated with slide.
As an improvement of the above scheme, the quantity of the eccentric orfice is multiple, and the eccentricity of multiple eccentric orfices is different.
As an improvement of the above scheme, the strap and movable clamp plate are equipped with for clamping device clamp to be tested
Bolt hole.
It as an improvement of the above scheme, further include screw slide structure, the screw slide structure includes that fixation is located at frame
The screw bolt seat and control screw rod of frame base top, the two sides of movable clamp plate are equipped with sliding rail, and the screw bolt seat is equipped with matches with sliding rail
The sliding slot of conjunction, movable clamp plate are equipped with threaded hole, and the one end for controlling screw rod, which is worn, to be rotatablely connected after threaded hole with screw bolt seat, control
The other end of screw rod is equipped with handwheel.
As an improvement of the above scheme, the drive rod is connect by pin shaft with eccentric orfice.
The invention has the following advantages: the fatigue tester suitable for device clamp of the invention, can be used for setting
The whole fatigue test of standby wire clamp, is compared to sampling and to the fatigue test that metal material is done, and structure can be designed
It influences to consider wherein, the use state of most true reduction apparatus wire clamp, by the experiment of high-frequency high-efficiency and low-cost, accurately
Ground reflects the service life of device clamp, is conducive to military service performance evaluation, the life appraisal, goods and materials solution formulation of device clamp,
There is important meaning for power network line reliability service, accident prevention.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of embodiment of device clamp to be tested；
Fig. 2 is the structural schematic diagram of device clamp another kind embodiment to be tested；
Fig. 3 is the structural schematic diagram of the fatigue tester specific embodiment suitable for device clamp of the invention；
Fig. 4 is the structural schematic diagram of another angle of the fatigue tester suitable for device clamp of Fig. 3；
Fig. 5 is the structural schematic diagram of swing model configuration specific embodiment of the invention.
In attached drawing:
1- binding post 2- linking arm 3- base portion 4- stiffener plate
5- device clamp 6- conducting wire 7- frame base 8- pull rod to be tested
9- slide 10- drive rod 11- motor 12- rotating wheel
13- strap 14- movable clamp plate 15- eccentric orfice 16- screw bolt seat
17- controls screw rod 18- handwheel
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
As shown in Figure 1, it is shown that a specific embodiment of device clamp, in the embodiment, device clamp includes connection
Arm 2 and the base portion 3 being arranged on linking arm 2, linking arm 2 are tubular structure, and base portion 3 is plate structure, the both ends of linking arm 2
It is respectively equipped with binding post 1, binding post 1 is perpendicular to the plane where linking arm 2 and base portion 3.
As shown in Figure 2, it is shown that another specific embodiment of device clamp, in the embodiment, device clamp includes connecting
The base portion 3 for connecing arm 2 and being arranged on linking arm 2, linking arm 2 be tubular structure, base portion 3 be plate structure, the two of linking arm 2
End is respectively equipped with binding post 1, and binding post 1 is perpendicular to the plane where linking arm 2 and base portion 3, the angle of linking arm 2 and base portion 3
Place's setting stiffener plate 4, the setting of stiffener plate 4, so that the structure of device clamp is optimized.
As shown in Figures 3 to 5, the present invention provides a kind of fatigue tester suitable for device clamp, two to be tested
Device clamp 5 is connected by conducting wire 6,7, two clamping plates of frame base, pull rod 8, slide 9, drive rod 10 including box and
The rotating wheel 12 driven by motor 11；Two clamping plates and two device clamps 5 to be tested correspond, a clamping plate clamping one
A device clamp to be tested 5, two clamping plates include the fixed strap 13 for being located at 7 top of frame base and slidable setting
Movable clamp plate 14 at the top of frame base 7, the upper end of pull rod 8 are equipped with the movable ring set for wearing conducting wire 6, under pull rod 8
End is connect with slide 9, and slide 9 is vertically movable to be located on frame base 7, and rotating wheel 12 is equipped with eccentric orfice 15, drive rod
10 one end is connect with slide 9, and the other end of drive rod 10 is connect with eccentric orfice 15.
Wherein, pull rod 8, slide 9, drive rod 10 and the rotating wheel 12 driven by motor 11 collectively form swing mould
Quasi- structure, and pull rod 8, slide 9, drive rod 10 and the rotating wheel 12 driven by motor 11 are from top to bottom set gradually.
The operating principle of above-mentioned fatigue tester is, wears conducting wire 6 in the movable ring set of the upper end of pull rod 8 first,
The both ends of conducting wire 6 crimp connection by standard construction technology by press-connection machine with two device clamps 5 to be tested respectively.It then will be upper
It states two device clamps 5 to be tested to be separately fixed on strap 13 and movable clamp plate 14, wherein it should be noted that solid
The position of clamp plate 13 and movable clamp plate 14 is corresponding, and the two is substantially in parallel relation, is pushed up by movable clamp plate 14 in frame base 7
The sliding in portion, thus it is possible to vary the distance between two device clamps, applying axial power to conducting wire 6 makes conducting wire 6 have downward arc
Degree, stress of the analog conducting wire 6 under practical natural windless condition.After assembling according to above-mentioned relation, motor 11, rotating wheel are started
12 rotations, and pass through the linkage of drive rod 10, slide 9 and pull rod 8, it drives conducting wire 6 to pump, simulates the pendulum under wind
It is dynamic, until component is pulled off.
Northern area wind-force is larger, and there are larger journeys for widely used device wire clamp in grid equipment for alternation wind load
The influence of degree, the fatigue tester suitable for device clamp of the invention can be used for the whole fatigue test of device clamp, phase
Be compared to sampling and to the fatigue test that metal material is done, the influence that structure can be designed considers wherein, most it is true also
The use state of original equipment wire clamp, by the experiment of high-frequency high-efficiency and low-cost, accurately reflect device clamp uses the longevity
Life, is conducive to military service performance evaluation, the life appraisal, goods and materials solution formulation of device clamp, for power network line reliability service, thing
Therefore prevention has important meaning.
In a specific embodiment, pull rod 8 is T-shaped, and the both ends of the horizontal mounting arm of pull rod 8 are respectively provided with to wear and lead
The lower end of the movable ring set of line 6, the vertical support arm of pull rod 8 is connect with slide 9.In the embodiment, first by the water of T-type pull rod 8
Wear conducting wire 6 in the movable ring set at the both ends of flat support arm respectively, one end of two conducting wires 6 and device clamp 5 to be tested
By press-connection machine by the crimping connection of standard construction technology, the other end of two conducting wires 6 to be tested is set with another for two binding posts
Two binding posts of standby wire clamp 5 equally pass through press-connection machine and crimp connection by standard construction technology.Then by above-mentioned two equipment line
Folder is separately fixed on strap 13 and movable clamp plate 14, the sliding by movable clamp plate 14 at the top of frame base 7, can be with
Change the distance between two device clamps, applying axial power to conducting wire 6 makes conducting wire 6 have downward radian, and analog conducting wire 6 exists
Stress under practical nature windless condition.After assembling according to above-mentioned relation, motor 11 is started, rotating wheel 12 rotates, and passes through
The linkage of drive rod 10, slide 9 and T-type pull rod 8 drives conducting wire 6 to pump, and simulates the swing under wind, until structure
Part is pulled off.
For the ease of the vertically movable of slide 9, frame base 7 is equipped with the vertical track cooperated with slide 9.A kind of excellent
It selects in embodiment, the quantity of the eccentric orfice 15 is multiple, and the eccentricity of multiple eccentric orfices 15 is different.It, can in the embodiment
With according to think it is to be simulated to the wind under the conditions of amplitude and frequency, selection drive rod 10 and the eccentric orfice 15 of corresponding eccentricity are connected
It connects, while adjusting 11 velocity of rotation of motor.
Device clamp 5 to be tested is clamped for the ease of strap 13 and movable clamp plate 14, the strap 13 and can
Dynamic clamping plate 14 is equipped with the bolt hole for clamping device clamp 5 to be tested, the base portion of device clamp 5 to be tested or plate end
It is correspondingly provided with or is machined with bolt hole.
It specifically, further include screw slide structure, the screw slide structure includes fixed is located at the top of frame base 7
Screw bolt seat 16 and control screw rod 17, the two sides of movable clamp plate 14 are equipped with sliding rail, and the screw bolt seat 16 is equipped with to be cooperated with sliding rail
Sliding slot, movable clamp plate 14 are equipped with threaded hole, and one end of control screw rod 17 is rotatablely connected after wearing threaded hole with screw bolt seat 16, control
The other end of screw rod 17 processed is equipped with handwheel 18.
Specifically, one end of the drive rod 10 is rotatablely connected by pin shaft and slide 9, the other end of the drive rod 10
It is rotatablely connected by pin shaft and eccentric orfice 15.Frame base 7 is sub-unit package assembly, and strap 13 and screw bolt seat 16 pass through
Bolt is fixed on the top of frame base 7.
In order to effectively reflect the service life of device clamp 5 to be tested, chooses sample and carry out fatigue test, in the fatigue
Fatigue test is carried out on testing machine, until fracture, obtains relevant test data and fatigue life.It should be noted that of the invention
Inventive point be intuitively to reflect Structure Designing Problem (such as stress raisers) to shadow caused by fatigue strength comprehensively
It rings, rather than only considers the fatigue behaviour of material.It thus most can really simulate reflection component making in actual application
Use the service life.
To sum up, the fatigue tester suitable for device clamp of the invention can be used for the whole fatigue examination of device clamp
It tests, is compared to sampling and to the fatigue test that metal material is done, the influence that structure can be designed considers wherein, most really
The use state of reduction apparatus wire clamp making for device clamp is accurately reflected by the experiment of high-frequency high-efficiency and low-cost
With the service life, is conducive to military service performance evaluation, the life appraisal, goods and materials solution formulation of device clamp, power network line is reliably transported
Row, accident prevention have important meaning.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of fatigue tester suitable for device clamp, two device clamps (5) to be tested are connected by conducting wire (6),
Be characterized in that: the fatigue tester includes frame base (7), two clamping plates, pull rod (8), the slide (9), drive rod of box
(10) and by motor (11) rotating wheel (12) driven；Two clamping plates and two device clamps (5) one to be tested are a pair of
It answers, a clamping plate clamps a device clamp (5) to be tested, and two clamping plates include that fixation is located at consolidating at the top of frame base (7)
Clamp plate (13) and the movable clamp plate (14) being slidably disposed at the top of frame base (7), the upper end of pull rod (8), which is equipped with, to be used for
Wear the movable ring set of conducting wire (6), the lower end of pull rod (8) is connect with slide (9), slide (9) it is vertically movable be located at frame
On pedestal (7), rotating wheel (12) is equipped with eccentric orfice (15), and one end of drive rod (10) is connect with slide (9), drive rod (10)
The other end connect with eccentric orfice (15).
2. the fatigue tester according to claim 1 suitable for device clamp, it is characterised in that: pull rod (8) is T-shaped,
The both ends of the horizontal mounting arm of pull rod (8) are respectively provided with the movable ring set for wearing conducting wire (6), the vertical support arm of pull rod (8)
Lower end is connect with slide (9).
3. the fatigue tester according to claim 1 suitable for device clamp, it is characterised in that: on frame base (7)
Equipped with the vertical track cooperated with slide (9).
4. the fatigue tester according to claim 1 suitable for device clamp, it is characterised in that: the eccentric orfice (15)
Quantity be multiple, and the eccentricity of multiple eccentric orfices (15) is different.
5. the fatigue tester according to claim 1 suitable for device clamp, it is characterised in that: the strap
(13) and movable clamp plate (14) is equipped with the bolt hole for clamping device clamp to be tested (5).
6. the fatigue tester according to claim 1-5 suitable for device clamp, it is characterised in that: further include
Screw slide structure, the screw slide structure include the fixed screw bolt seat (16) being located at the top of frame base (7) and control spiral shell
Bar (17), the two sides of movable clamp plate (14) are equipped with sliding rail, and the screw bolt seat (16) is equipped with the sliding slot cooperated with sliding rail, movable to press from both sides
Plate (14) is equipped with threaded hole, and one end of control screw rod (17) is rotatablely connected after wearing threaded hole with screw bolt seat (16), controls spiral shell
The other end of bar (17) is equipped with handwheel (18).
7. the fatigue tester according to claim 1-5 suitable for device clamp, it is characterised in that: the biography
Lever (10) is connect by pin shaft with eccentric orfice (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061405.6A CN107830999B (en) | 2017-11-02 | 2017-11-02 | A kind of fatigue tester suitable for device clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061405.6A CN107830999B (en) | 2017-11-02 | 2017-11-02 | A kind of fatigue tester suitable for device clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107830999A CN107830999A (en) | 2018-03-23 |
| CN107830999B true CN107830999B (en) | 2019-10-29 |
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ID=61651493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711061405.6A Active CN107830999B (en) | 2017-11-02 | 2017-11-02 | A kind of fatigue tester suitable for device clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830999B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489832B (en) * | 2018-05-03 | 2020-10-02 | 国网新疆电力有限公司电力科学研究院 | High-voltage wire swinging fatigue testing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001296227A (en) * | 2000-04-12 | 2001-10-26 | Sumitomo Wiring Syst Ltd | Method and device for abrasion testing for covered electric wire |
| CN101017715A (en) * | 2006-01-23 | 2007-08-15 | 长沙理工大学 | Multi-parameter adjustable cable fretting fatigue device |
| CN102175542A (en) * | 2011-01-06 | 2011-09-07 | 三峡大学 | Test bench for fretting abrasion of double-strand aluminum lead |
| CN105222969A (en) * | 2015-09-18 | 2016-01-06 | 天津大学 | Inclination angle ladder incoming flow marine riser vortex swashs the-sharp coupled vibrations test unit of ginseng |
-
2017
- 2017-11-02 CN CN201711061405.6A patent/CN107830999B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001296227A (en) * | 2000-04-12 | 2001-10-26 | Sumitomo Wiring Syst Ltd | Method and device for abrasion testing for covered electric wire |
| CN101017715A (en) * | 2006-01-23 | 2007-08-15 | 长沙理工大学 | Multi-parameter adjustable cable fretting fatigue device |
| CN102175542A (en) * | 2011-01-06 | 2011-09-07 | 三峡大学 | Test bench for fretting abrasion of double-strand aluminum lead |
| CN105222969A (en) * | 2015-09-18 | 2016-01-06 | 天津大学 | Inclination angle ladder incoming flow marine riser vortex swashs the-sharp coupled vibrations test unit of ginseng |
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| CN107830999A (en) | 2018-03-23 |
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