CN205138895U - Tensile test frock - Google Patents
Tensile test frock Download PDFInfo
- Publication number
- CN205138895U CN205138895U CN201520859753.8U CN201520859753U CN205138895U CN 205138895 U CN205138895 U CN 205138895U CN 201520859753 U CN201520859753 U CN 201520859753U CN 205138895 U CN205138895 U CN 205138895U
- Authority
- CN
- China
- Prior art keywords
- connecting pin
- gold utensil
- tension test
- annular gold
- groove
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a tensile test frock for line insulator's annular gold utensil tensile test. Tensile test frock includes connecting pin and drawing portion, and the one end and the pulling force machine of drawing portion are connected, and the other end is connected with the connecting pin. During tensile test, the connecting pin passes annular gold utensil and fixes the other end in drawing portion. Being provided with on the connecting pin and locating the complex recess with the tensile atress of annular gold utensil, when carrying out tensile test, some is face and face contact to the internal surface of recess at least with the surface of annular gold utensil. Setting up of above -mentioned recess has increased the area of contact of connecting pin with annular gold utensil, alleviates or even has avoided producing the drawing stamp on the gold utensil when tensile, guarantees the mounting dimension and the appearance quality of annular gold utensil.
Description
Technical field
The utility model relates to a kind of tension test frock, specifically a kind of tension test frock avoiding the generation of annular gold utensil to draw trace.
Background technology
Electric armour clamp is the widely used iron or aluminum metal-ware of transmission line of electricity, and annular gold utensil is the one of electric armour clamp.Due to the architectural characteristic of annular gold utensil, annular gold utensil can reduce kind and the quantity of electric armour clamp, reduces serial length, reduces line cost, especially acts on particularly outstanding in extra-high voltage power transmission and distribution project.Such as annular gold utensil is widely used on line insulator, and as its end accessory.Fig. 2 is the schematic diagram of annular gold utensil.
Operationally, line insulator and annular gold utensil all need to bear larger pulling force, need to carry out tension test in routine test of dispatching from the factory.As shown in Figures 1 to 4, tension test frock 1 comprises connecting pin 2 and extension section 3, and tension test frock 1 is connected with annular gold utensil 4 by connecting pin 2.Specifically connecting pin 2 is through annular gold utensil 4, and two ends are fixed in tension test frock 1.In traditional tension test process, annular gold utensil 4 produces at the stressed place 5 of stretching and significantly draws trace to be out of shape, and affects its installation dimension and presentation quality.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of tension test frock, when making tension test, alleviates the generation even avoiding annular gold utensil pull-up trace to be out of shape.
For achieving the above object, the technical scheme that the utility model adopts is as follows: a kind of tension test frock, for the tension test of the annular gold utensil of line insulator, this tension test frock comprises connecting pin and extension section, one end of above-mentioned extension section is connected with puller system, above-mentioned connecting pin passes above-mentioned annular gold utensil and is fixed on the other end of above-mentioned extension section, above-mentioned connecting pin is provided with the groove that the stressed place that to stretch with above-mentioned annular gold utensil coordinates, when carrying out tension test, the inside surface of above-mentioned groove contacts with face for face at least partially with above-mentioned annular gold utensil.
During tension test, above-mentioned tension test frock is connected with above-mentioned annular gold utensil by above-mentioned connecting pin, and above-mentioned connecting pin through above-mentioned annular gold utensil, and is fixed in above-mentioned tension test frock.Because the surface of above-mentioned annular gold utensil is arcwall face, above-mentioned connecting pin arranges groove, this groove and the above-mentioned annular gold utensil stressed place that stretches is matched, and is after face contacts with face between above-mentioned connecting pin with above-mentioned annular gold utensil, increase contact area between the two.When pulling force is constant, the power that above-mentioned annular gold utensil is subject to partially diminishes, thus alleviates the generation of even avoiding drawing trace to be out of shape, and ensure that installation dimension and the presentation quality of above-mentioned annular gold utensil.
Preferably, the inside surface of above-mentioned groove is a cambered surface.
The groove of a cambered surface is convenient to processing, and selectively design makes the degree of depth at the surface of contact place of this groove and above-mentioned annular gold utensil reach maximum, the i.e. radius of the xsect of above-mentioned annular gold utensil, so the surface of contact of this groove and above-mentioned annular gold utensil also can reach maximum.When pulling force is constant, farthest alleviates the power that above-mentioned annular gold utensil is subject to partially, thus alleviate the generation even avoiding and draw trace.
Preferably, the inside surface of above-mentioned groove is made up of the large cambered surface of centre and the little cambered surface at two ends, rounding off between above-mentioned large cambered surface and above-mentioned little cambered surface, the junction rounding off of above-mentioned little cambered surface and above-mentioned connecting pin.
Above-mentioned large cambered surface is the surface of contact of above-mentioned annular gold utensil and above-mentioned connecting pin when stretching, the power that when alleviating stretching, above-mentioned annular gold utensil is locally subject to.The setting of the little cambered surface at above-mentioned two ends, the setting of the setting of rounding off and the junction rounding off of above-mentioned little cambered surface and above-mentioned connecting pin between above-mentioned large cambered surface and above-mentioned little cambered surface, installation guiding function is played to above-mentioned annular gold utensil, guide above-mentioned annular gold utensil to enter above-mentioned large cambered surface reposefully, and avoid above-mentioned annular gold utensil to be subject to wedge angle scuffing.
Preferably, above-mentioned connecting pin is provided with the groove of multiple different arc sizes, the annular gold utensil of the corresponding corresponding size of each groove.
Above-mentioned connecting pin is provided with the groove of multiple different arc sizes, then connecting pin may be used for the tension test of the annular gold utensil of different size.
Preferably, the direction that above-mentioned connecting pin passes perpendicularly through above-mentioned gold utensil is the length direction of above-mentioned connecting pin, the length direction of above-mentioned connecting pin arranges multiple above-mentioned groove at certain intervals, above-mentioned connecting pin is formed spacer and groove section, above-mentioned spacer is provided with spacing hole.
The length direction of above-mentioned connecting pin arranges multiple above-mentioned groove at certain intervals, improves the utilization factor of above-mentioned connecting pin, above-mentioned connecting pin can be fixed on above-mentioned extension section through the spacing hole that above-mentioned spacer is arranged by securing member
Preferably, the hardness of the above-mentioned annular gold utensil of the hardness ratio of above-mentioned connecting pin is high.
The number of times annular gold utensil being carried out to tension test is few, generally once just passable.And for connecting pin, having very high requirement to its life-span, the hardness arranging the above-mentioned annular gold utensil of hardness ratio of above-mentioned connecting pin is high, then this connecting pin can be used as the tension test of more annular gold utensil.
Preferably, above-mentioned connecting pin is a cylinder, and the two ends of above-mentioned connecting pin are provided with screw thread, is fixed on above-mentioned extension section by above-mentioned connecting pin by locking between above-mentioned screw thread and securing member.Such connecting pin structure is simple, is convenient to manufacture.This connecting pin is locked can be connected on extension section securely by the screw thread at two ends and securing member.
Preferably, above-mentioned connecting pin is a cylinder, one end of above-mentioned connecting pin is provided with screw thread, by locking between above-mentioned screw thread and securing member, this one end of above-mentioned connecting pin is fixed on above-mentioned extension section, the other end of above-mentioned connecting pin is provided with spacing hole, use securing member through above-mentioned spacing hole, this one end of above-mentioned connecting pin can be made to be fixed on above-mentioned extension section.
One end of above-mentioned connecting pin locks by screw thread and securing member the one end being fixed on above-mentioned extension section, and the other end is fixed on the other end of above-mentioned extension section through described spacing hole by securing member.
Preferably, above-mentioned connecting pin is T font, and the shank comprising limiting stand and be connected with this limiting stand, above-mentioned groove is arranged on above-mentioned shank.
Above-mentioned connecting pin is set to T font, and above-mentioned limiting stand can be used for one end of this connecting pin and the spacing of above-mentioned extension section, does not need to use other securing members to be fixed on above-mentioned extension section by this connecting pin in this one end.
Preferably, above-mentioned shank is provided with spacing hole away from one end of above-mentioned limiting stand, uses securing member through above-mentioned spacing hole, can make above-mentioned connecting pin is fixed on above-mentioned extension section away from one end of above-mentioned limiting stand.Above-mentioned like this connecting pin is overall just to link together with above-mentioned extension section and carries out tension test.
Accompanying drawing explanation
Schematic diagram when Fig. 1 is the tension test of traditional endless gold utensil.
Fig. 2 is the vertical view of annular gold utensil.
Fig. 3 is traditional connecting pin front view.
Fig. 4 is the front view connecting extension section.
Fig. 5 is extension section vertical view.
Fig. 6 is the utility model embodiment one connecting pin schematic diagram.
Fig. 7 is the utility model embodiment one middle sleeve and nut schematic diagram.
Schematic diagram when Fig. 8 is the utility model embodiment one annular gold utensil tension test.
Fig. 9 is the utility model embodiment two connecting pin schematic diagram.
Schematic diagram when Figure 10 is the gold utensil tension test of the utility model embodiment second ring.
Figure 11 is the schematic diagram of the utility model embodiment two connecting pin another kind distortion.
Figure 12 is the utility model embodiment three connecting pin schematic diagram.
Schematic diagram when Figure 13 is the utility model embodiment three annular gold utensil tension test.
Figure 14 is the utility model embodiment four connecting pin schematic diagram.
Embodiment
As requested, the specific embodiment of the present invention will be disclosed here.But should be understood that, embodiment disclosed is here only exemplary of the present invention, and it can be presented as various forms.Therefore, here the detail disclosed is not considered to restrictive, and be only as the basis of claim and as instructing those skilled in the art differently to apply representational basis of the present invention in appropriate mode any in reality, the various features comprising employing disclosed here also combine the feature that may clearly not disclose here.
Embodiment one:
As shown in Figure 2, annular gold utensil 4 comprises and the cylindricality end 5 of line insulation sub-connection and the annular end 6 that is connected with tension test frock.The annular end 6 of annular gold utensil 4 forms porose 7.
As shown in Figure 4 and Figure 5, one end 8 of extension section 3 is provided with screw thread and can be connected with puller system, the other end 9 comprises upper plate 10 and the lower shoe 11 of corresponding setting, upper plate 10 and lower shoe 11 are provided with corresponding mounting hole 12, this extension section 3 can be made to be connected with connecting pin by two corresponding mounting holes 12.
As shown in Figure 6, connecting pin 13 is cylinders, and the hardness of its hardness ratio annular gold utensil 4 is high.Connecting pin 13 is provided with a groove 14, the two ends (15,16) of connecting pin 13 are provided with screw thread.The inside surface 17 of groove 14 is cambered surfaces.Figure 7 shows that with the two ends of connecting pin 13 (15,16) with the use of nut 18 and sleeve 19.
As shown in Figure 8, when carrying out tension test, connecting pin 13 is through the hole 7 on annular gold utensil 4, and annular gold utensil 4 is stuck in the groove 14 of connecting pin 13.The two ends (15,16) of connecting pin 13 are each passed through mounting hole 12 corresponding on the upper plate 10 of extension section 3 and lower shoe 11, and use nut 18 and sleeve 19 to be fixed on extension section 3 by connecting pin 13.The annulus xsect 20 of the annular end 6 of annular gold utensil 4 is round.The inside surface 17 of connecting pin 13 upper groove 14 is plane-plane contacts with the outside surface of annular gold utensil 4, and the degree of depth h of both surface of contact 21 correspondences is equal with the radius of annulus xsect 20.
The inside surface 17 of connecting pin 13 upper groove 14 is plane-plane contacts with the outside surface of annular gold utensil 4, increase the contact area between connecting pin 13 and annular gold utensil 4, when pulling force is constant, the power that annular gold utensil 4 is subject to partially diminishes, thus alleviate the generation even avoiding and draw trace to be out of shape, ensure that installation dimension and the presentation quality of annular gold utensil 4.Because the inside surface 17 of connecting pin 13 upper groove 14 is cambered surfaces, and connecting pin 13 degree of depth h corresponding with the surface of contact 21 of annular gold utensil 4 is equal with the radius of annulus xsect 20, so connecting pin 13 reaches maximum with the surface of contact of annular gold utensil 4, alleviate the generation even avoiding and draw trace to the full extent.Matching respectively at nut 18, sleeve 19 and connecting pin 13 be securely fixed on extension section 3 in the two ends (15,16) of connecting pin 13, ensure that tension test is normally carried out.Because the hardness of the hardness ratio annular gold utensil 4 of connecting pin 13 is large, so connecting pin 13 can be used as the tension test of more annular gold utensil.In the present embodiment, the hardness of the hardness ratio annular gold utensil 4 of connecting pin 13 is high, and the hardness of connecting pin also can be lower than the hardness of annular gold utensil.
Embodiment two:
As shown in Figure 9, connecting pin 22 is T fonts, and the hardness of its hardness ratio annular gold utensil 4 is high.The shank 24 that connecting pin 22 comprises limiting stand 23 and is connected with limiting stand 23.Shank 24 is provided with two grooves 25, and the one end 26 away from limiting stand 23 is provided with screw thread.The inside surface of groove 25 comprises middle large cambered surface 27 and the little cambered surface 28 at two ends, rounding off between large cambered surface 27 and little cambered surface 28, junction 29 rounding off of little cambered surface 28 and connecting pin 22.
As shown in Figure 10, when installing before tension test, annular gold utensil 4 can be put into extension section 3, make the mounting hole 12 in extension section 3 corresponding with the hole 7 on annular gold utensil 4, insert connecting pin 22 from extension section 3 outside, connecting pin 22 is successively through the mounting hole 12 of the hole 7 on the mounting hole 12 of extension section 3 upper plate 10, annular gold utensil 4 and extension section 3 lower shoe 11.The limiting stand 23 of connecting pin 22 is stuck in outside the upper plate 10 of extension section 3, uses nut 18 and sleeve 19 itself and extension section 3 to be fixed up at one end 26 place of connecting pin 22.When tension test, little cambered surface 28 pessum gold utensil 4 enters in the groove 25 of connecting pin 22, and large cambered surface 27 plane-plane contact of annular gold utensil 4 and groove 25.The degree of depth h1 that groove 25 is corresponding with the surface of contact 30 of annular gold utensil 4 is less than the radius of annulus xsect 31.
Arranging of the medium and small cambered surface 28 of connecting pin 22 upper groove 25 plays installation guiding function to annular gold utensil 4.Again because little cambered surface 28 and junction 29 rounding off with connecting pin 22, rounding off between large cambered surface 27 and little cambered surface 28, so can avoid annular gold utensil 4 to be damaged by wedge angle entering in groove 25 and tension test.Because large cambered surface 27 plane-plane contact of annular gold utensil 4 and groove 25, when pulling force is constant, the power that annular gold utensil 4 is subject to partially diminishes, thus alleviates the generation even avoiding and draw trace to be out of shape, and ensure that installation dimension and the presentation quality of annular gold utensil 4.Because connecting pin 22 is T fonts, wherein limiting stand 23 can be directly spacing to connecting pin 22, do not need additionally to use securing member to fix in this section.At the other end 26 place of connecting pin 22, utilize nut 18 and sleeve 19 can be securely fixed on extension section 3.
Except the form in the present embodiment, connecting pin can also be distortion as shown in figure 11.Thread head 33 in connecting pin 32 is less than connected shank 34 width, and such setting can ensure that connecting pin 32 has enough intensity.
Embodiment three:
In above embodiment, the one or both ends of connecting pin are provided with screw thread, fix with extension section 3 in conjunction with sleeve 19 and nut 18.The end of connecting pin also can arrange spacing hole, then itself and extension section is fixed in conjunction with securing member.As shown in figure 12, connecting pin 35 is T fonts, at the shank 37 comprising limiting stand 36 and be connected with limiting stand 36.Shank 37 is provided with spacing hole 38 away from one end of limiting stand 36.
As shown in figure 13, when installing before tension test, annular gold utensil 4 can be put into extension section 3, make the mounting hole 12 in extension section 3 corresponding with the hole 7 on annular gold utensil 4, insert connecting pin 35 from extension section 3 outside, connecting pin 35 is successively through the mounting hole 12 of the hole 7 on the mounting hole 12 of extension section 3 upper plate 10, annular gold utensil 4 and extension section 3 lower shoe 11.The limiting stand 36 of connecting pin 35 is stuck in outside the upper plate 10 of extension section 3, is fixed on extension section 3 by connecting pin 35 by the combination of spacing hole 38 and securing member 39 at one end place of connecting pin 35.
The limiting stand 36 of connecting pin 35 is spacing to its one end, and the other end is combined by spacing hole 38 can be fixed on extension section 3 by connecting pin 35 securely with securing member 39.
Connecting pin 35 is T fonts in the present embodiment, and in like manner connecting pin also can be cylinder, arranges screw thread in one end of connecting pin, is fixed on extension section 3 by nut and locking of screw thread by this one end; The other end arranges spacing hole, is fixed up in this one end of connecting pin and extension section 3 through spacing hole by bolt.
Embodiment four:
Connecting pin in above embodiment is provided with a groove or two grooves, as shown in figure 14, also can be oppositely arranged two row grooves on connecting pin 40 length direction, often shows two grooves.Groove 41 is different with the arc sizes in groove 42, respectively the annular gold utensil of corresponding different size.Connecting pin 40 comprises groove section 43 and spacer 44, and spacer 44 is provided with spacing hole 45.
The mechanical property that guarantee connecting pin is evenly set of four grooves.Groove 41 and groove 42 correspond respectively to the annular gold utensil of different size, make a connecting pin 40 may be used for the tension test of the annular gold utensil of multiple different size.Use bolt connecting pin 40 can be fixed on extension section 3 through the spacing hole 45 in spacer 44.
Technology contents of the present invention and technical characterstic have disclosed as above; but be appreciated that; under creative ideas of the present invention; those skilled in the art can make various changes said structure and material and improve; comprise the combination of disclosure or claimed technical characteristic separately here, comprise other combination of these features significantly.These distortion and/or combination all fall in technical field involved in the present invention, and fall into the protection domain of the claims in the present invention.
Claims (10)
1. a tension test frock, for the tension test of the annular gold utensil of line insulator, described tension test frock comprises connecting pin and extension section, one end of described extension section is connected with puller system, described connecting pin passes described annular gold utensil and is fixed on the other end of described extension section, it is characterized in that: described connecting pin is provided with the groove that the stressed place that to stretch with described annular gold utensil coordinates, when carrying out tension test, the inside surface of described groove contacts with face for face at least partially with described annular gold utensil.
2. tension test frock as claimed in claim 1, is characterized in that: the inside surface of described groove is a cambered surface.
3. tension test frock as claimed in claim 1, it is characterized in that: the inside surface of described groove is made up of the large cambered surface of centre and the little cambered surface at two ends, rounding off between described large cambered surface and described little cambered surface, the junction rounding off of described little cambered surface and described connecting pin.
4. tension test frock as claimed in claim 1, is characterized in that: the groove described connecting pin being provided with multiple different arc sizes, the annular gold utensil of the corresponding corresponding size of each groove.
5. tension test frock as claimed in claim 4, it is characterized in that: the direction that described connecting pin passes perpendicularly through described gold utensil is the length direction of described connecting pin, the length direction of described connecting pin arranges multiple described groove at certain intervals, described connecting pin is formed spacer and groove section, described spacer is provided with spacing hole.
6. tension test frock as claimed in claim 1, is characterized in that: described in the hardness ratio of described connecting pin, the hardness of annular gold utensil is high.
7. tension test frock as claimed in claim 1, be is characterized in that: described connecting pin is a cylinder, and the two ends of described connecting pin are provided with screw thread, is fixed on described extension section by described connecting pin by locking between described screw thread and securing member.
8. tension test frock as claimed in claim 1, it is characterized in that: described connecting pin is a cylinder, one end of described connecting pin is provided with screw thread, by locking between described screw thread and securing member, this one end of described connecting pin is fixed on described extension section, the other end of described connecting pin is provided with spacing hole, use securing member through described spacing hole, this one end of described connecting pin can be made to be fixed on described extension section.
9. tension test frock as claimed in claim 1, it is characterized in that: described connecting pin is T font, the shank comprising limiting stand and be connected with described limiting stand, described groove is arranged on described shank.
10. tension test frock as claimed in claim 9, it is characterized in that: described shank is provided with spacing hole away from one end of described limiting stand, use securing member through described spacing hole, can make described connecting pin is fixed on described extension section away from one end of described limiting stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859753.8U CN205138895U (en) | 2015-10-30 | 2015-10-30 | Tensile test frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859753.8U CN205138895U (en) | 2015-10-30 | 2015-10-30 | Tensile test frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205138895U true CN205138895U (en) | 2016-04-06 |
Family
ID=55624677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520859753.8U Active CN205138895U (en) | 2015-10-30 | 2015-10-30 | Tensile test frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205138895U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354337A (en) * | 2021-12-10 | 2022-04-15 | 广东电网有限责任公司 | Method and device for detecting tensile strength of hardware in corrosion state and terminal equipment |
-
2015
- 2015-10-30 CN CN201520859753.8U patent/CN205138895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114354337A (en) * | 2021-12-10 | 2022-04-15 | 广东电网有限责任公司 | Method and device for detecting tensile strength of hardware in corrosion state and terminal equipment |
| CN114354337B (en) * | 2021-12-10 | 2023-09-05 | 广东电网有限责任公司 | Tensile strength detection method and device for hardware fitting in rust state and terminal equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205138895U (en) | Tensile test frock | |
| CN204615332U (en) | Bearing type insulating tension clamp | |
| CN203339618U (en) | Suspended wire clamp | |
| CN203813381U (en) | 220kV power transmission line four-split tightening type jumper suspension clamp | |
| CN205426666U (en) | Tensile chuck of O -fibres plug and stretching device | |
| CN104377631A (en) | Multi-core cable holder | |
| CN204556686U (en) | A kind of electric energy meter plug terminal | |
| CN204349393U (en) | A kind of multicore wire clamp | |
| CN204517349U (en) | Power cable lays branch's jockey | |
| CN208226493U (en) | A kind of column facilitating cabling | |
| CN204375491U (en) | Cable cabling draw-gear | |
| CN206195241U (en) | General wing section fixture with adjustable 500kV transmission line strain insulator tower tower head end | |
| CN106253168A (en) | Universal shunt device | |
| CN108824939A (en) | Telegraph pole guy stretcher | |
| CN220254087U (en) | Tubular bus duct structure convenient to splice | |
| CN215631827U (en) | Reinforcing device of box girder structure | |
| CN204239417U (en) | A kind of brass stud | |
| CN204375492U (en) | A kind of for the fitting sleeve in milliken conductor production | |
| CN209592918U (en) | A kind of insulating tension clamp used for transmission line | |
| CN210380009U (en) | Memory alloy preformed armor rod device | |
| CN208478631U (en) | A kind of industrial five spring hole scoket | |
| CN207021394U (en) | T-shaped wire clamp | |
| CN210889626U (en) | Connecting piece | |
| CN106015261A (en) | Opposite scutching nut for setting machine | |
| CN203335581U (en) | Cable pressing bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |