CN205780217U - A kind of packing ring - Google Patents
A kind of packing ring Download PDFInfo
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- CN205780217U CN205780217U CN201620521473.0U CN201620521473U CN205780217U CN 205780217 U CN205780217 U CN 205780217U CN 201620521473 U CN201620521473 U CN 201620521473U CN 205780217 U CN205780217 U CN 205780217U
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- pressure
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- bearing surface
- packing ring
- ring
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Abstract
This utility model provides a kind of packing ring, relate to power system fastener areas, this packing ring is marmem packing ring, it includes washer body, washer body includes the first pressure-bearing surface, second pressure-bearing surface relative with the first pressure-bearing surface, and connect the ring-type inwall of the first pressure-bearing surface and the second pressure-bearing surface and ring-type outer wall, wherein, first pressure-bearing surface constitutes the first ring-type edge with the junction of inwall, first pressure-bearing surface constitutes the second ring-type edge with the junction of outer wall, inwall surrounds the through hole passed for bolt, first edge forms the first intersection point with the axial slices of washer body, second intersection point, second edge forms the 3rd intersection point and the 4th intersection point with axial slices, the angle of the line of the first intersection point and the line of the 3rd intersection point and the 3rd intersection point and the 4th intersection point is 17 °～20 °.This packing ring has high resilience when state of applanation rises with temperature, makes contact resistance between the conductor fastened reduce, and prevents the overheated equipment operation failure caused between conductor.
Description
Technical field
The present invention relates to power system fastener areas, in particular to a kind of packing ring.
Background technology
Packing ring, usual thumb pad part between connected piece and nut.Generally pancake becket, is used for protecting the surface of connected piece not abraded by nut, disperses the nut pressure to connected piece.General screw and isoelectric membrane Area comparison are little, the power so acted on also can be smaller, the most easily loosen, in order to allow screw more firmly lock object, packing ring will be used to increase screw and the contact area of connected object, make it lock, even during some high-strength bolt, be dependent on packing ring and improve what frictional force between high-strength bolt and object fixed.
Packing ring is also a kind of securing member conventional in power system, and conventional is the packing ring of 65Mn, 60Si2MnA material.Such packing ring can prevent loosening by securing member in normal state.But because the abrasion of packing ring, creep, lax, shrink, or cause contact resistance between electric conductor to increase because vibration, technique are bad and cause nut loosening and generate heat, frequently result in equipment operation failure.
Summary of the invention
The purpose of this utility model is to provide a kind of packing ring, it is prepared by marmem, this packing ring produces high resilience when own temperature rises, and makes contact surface contact resistance between fastening conductor reduce, prevents from fastening the overheated equipment operation failure caused between conductor.
Embodiment of the present utility model is achieved in that
A kind of packing ring, this packing ring is marmem packing ring, it includes washer body, washer body includes the first pressure-bearing surface, second pressure-bearing surface relative with the first pressure-bearing surface, and connect the ring-type inwall of the first pressure-bearing surface and the second pressure-bearing surface and ring-type outer wall, wherein, first pressure-bearing surface constitutes the first ring-type edge with the junction of inwall, first pressure-bearing surface constitutes the second ring-type edge with the junction of outer wall, inwall surrounds the through hole passed for bolt, first edge forms the first intersection point with the axial slices of washer body, second intersection point, second edge forms the 3rd intersection point and the 4th intersection point with axial slices, the angle of the line of the first intersection point and the line of the 3rd intersection point and the 3rd intersection point and the 4th intersection point is 17 °～20 °.
In this utility model preferred embodiment, above-mentioned marmem packing ring is NiTi base memorial alloy packing ring.
In this utility model preferred embodiment, above-mentioned washer body thin and thick is uniform.
In this utility model preferred embodiment, above-mentioned first pressure-bearing surface is arcwall face.
In this utility model preferred embodiment, above-mentioned second pressure-bearing surface is arcwall face, and the first pressure-bearing surface and the second pressure-bearing surface are a part for sphere, and the centre of sphere of the first pressure-bearing surface place sphere and the centre of sphere of the second pressure-bearing surface place sphere overlap.
In this utility model preferred embodiment, above-mentioned second pressure-bearing surface constitutes the 3rd ring-type edge with inwall junction, 3rd edge forms the 5th intersection point, the 6th intersection point with the axial slices of washer body, and the line of the first intersection point and the 3rd intersection point is perpendicular to the first intersection point and the line of the 5th intersection point.
In this utility model preferred embodiment, above-mentioned washer body offers louvre, and louvre runs through the first pressure-bearing surface and second pressure-bearing surface of packing ring.
In this utility model preferred embodiment, above-mentioned louvre is manhole.
In this utility model preferred embodiment, above-mentioned louvre is square through hole.
In this utility model preferred embodiment, above-mentioned packing ring the first pressure-bearing surface and the second pressure-bearing surface are shiny surface.
This utility model embodiment provides the benefit that: this packing ring is marmem packing ring, and the angle of the line of this marmem packing ring first intersection point and the line of the 3rd intersection point and the first intersection point and the second intersection point is 17 °～20 °, can raise with temperature after this marmem packing ring flattens and be produced from adaptation resilience force, contact area between the first fastening conductor and the second fastening conductor is made to increase, contact resistance reduces, thus prevents from crossing between the first fastening conductor and the second fastening conductor the equipment operation failure of thermal initiation.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only certain embodiments of the present invention, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The marmem packing ring schematic perspective view that Fig. 1 provides for this utility model first embodiment；
The marmem packing ring axial slices schematic diagram that Fig. 2 provides for this utility model first embodiment；
The marmem packing ring mounting portion sectional view that Fig. 3 provides for this utility model first embodiment；
The marmem packing ring force figure that Fig. 4 provides for this utility model first embodiment；
The marmem packing ring axial slices schematic diagram that Fig. 5 provides for this utility model the second embodiment；
The marmem packing ring top view that Fig. 6 provides for this utility model the second embodiment；
In figure:
Marmem packing ring 100a, 100b；Washer body 101；Tilt angle alpha；First pressure-bearing surface 111；Second pressure-bearing surface 112；Inwall 113；Outer wall 114；Through hole 115；First edge 116；Second edge 117；3rd edge 118；4th edge 119；Nut 120；Bolt 121；First fastening conductor 122a；Second fastening conductor 122b.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of the embodiment of the present invention that illustrate described in accompanying drawing herein.
Therefore, the detailed description to the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model below, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms in following accompanying drawing, therefore, the most a certain Xiang Yi accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, describe it should be noted that term " first ", " second ", " the 3rd ", " the 4th " etc. are only used for distinguishing, and it is not intended that indicate or hint relative importance.
First embodiment
With reference to Fig. 1, the present embodiment provides a kind of marmem packing ring 100a, it includes washer body 101, washer body 101 includes the second pressure-bearing surface 112 that the first pressure-bearing surface 111 is relative with the first pressure-bearing surface 111, and connect the ring-type inwall 113 of the first pressure-bearing surface 111 and the second pressure-bearing surface 112 and ring-type outer wall 114, wherein, inwall 113 surrounds the through hole 115 passed for bolt 121.
With reference to Fig. 2, first pressure-bearing surface 111 constitutes the first ring-type edge 116 with the junction of inwall 113, the second ring-type edge, edge 117: the first 117 that first pressure-bearing surface 111 is also constituted with the junction of outer wall 114 forms the first intersection point, the second intersection point with the axial slices of washer body 101, second edge 117 forms the 3rd intersection point and the 4th intersection point with axial slices, and the angle α of the line of the first intersection point and the line of the 3rd intersection point and the 3rd intersection point and the 4th intersection point is 17 °～20 °.Making this shape memory packing ring 100a be driven plain under external force, during parent phase state to be recovered, it can produce resilience force to the first fastening conductor 122a and nut 120, and in the present embodiment, this angle α is 17 °.
In the present embodiment, this axial slices was the axial slices in the first ring-type center of circle, edge 116.
With reference to Fig. 2, in the present embodiment, it is positioned at the first pressure-bearing surface 111 tangent plane of axial slices and the first intersection point and the line coincident of the 3rd intersection point, that is, first pressure-bearing surface 111 be the line of the first intersection point and the 3rd intersection point with the central shaft of marmem packing ring 100a as rotary shaft, the face of rotating 360 degrees gained.
Second pressure-bearing surface 112 constitutes the 3rd ring-type edge 118 with the junction of inwall 113, second pressure-bearing surface 112 constitutes the 4th ring-type edge 119 with the junction of outer wall 114, axial slices at the 3rd edge 118 with washer body 101 forms the 5th intersection point, 6th intersection point, 4th edge 119 forms the 7th intersection point with the axial slices of washer body 101, 8th intersection point, first intersection point is parallel with the line of the 5th intersection point and the 7th intersection point with the line of described 3rd intersection point, i.e. washer body 101 thickness is uniform, that is, it is positioned at the 5th intersection point of axial slices and the angle of the line of the line of the 7th intersection point and the 7th intersection point and the 8th intersection point and angle α is equal, also it is 17 °.I.e. it is positioned at the first intersection point of same axial section, the 3rd intersection point, the 5th intersection point and the 7th intersection point and constitutes rectangle, make marmem packing ring 100a big with bolt 121 contact area.
First pressure-bearing surface 111 of marmem packing ring 100a and the second pressure-bearing surface 112 are smooth surface, reduce the friction between marmem packing ring 100a and the first fastening conductor 122a fastened.
nullThis marmem packing ring 100a can be copper-based memory alloy packing ring，In the present embodiment，This marmem packing ring 100a is NiTi base memorial alloy packing ring,This marmem packing ring 100a is in parent phase state，First edge 116 and the second edge 117 be not in same level，When it is driven plain under external force，First edge 116 and the second edge 117 are positioned at same level，But after being increased to transformation temperature with marmem packing ring 100a temperature，This marmem packing ring 100a shape can attempt to recover to parent phase state，I.e. first edge 116 and the second edge 117 be not in same level，Marmem packing ring 100a can produce resilience force to the first fastening conductor 122a and nut 120，This resilience force raises along with the temperature of marmem packing ring 100a and increases，Make the first fastening conductor 122a and second fastening conductor 122b between contact tightr，So that the contact area between the first fastening conductor 122a and the second fastening conductor 122b becomes big，Contact resistance diminishes，Reduce caloric value therebetween.
For the marmem packing ring 100a provided in the present embodiment, its manufacture method is as follows:
First, after marmem sheet material is carried out planar line cutting, then by above-mentioned the most cleaved after marmem sheet material carry out hot-pressing processing, form the marmem packing ring blank needed for this utility model, then by the most hot-forming marmem packing ring blank heat treatment, this heat treatment includes:
S1, solution treatment, by the most hot-forming marmem packing ring blank, be heated to 750 DEG C, constant temperature keeps certain time, after making surplus the most fully be dissolved in solid solution, quickly cooling, to obtain the Technology for Heating Processing of supersaturated solid solution, improves the plasticity and toughness of marmem.
S2, Ageing Treatment, by the marmem packing ring blank after solution treatment, place certain time at a temperature of 450 DEG C, be memory processing procedure.
S3, cooling process, and by above-mentioned marmem packing ring blank after Ageing Treatment, cooling processes to room temperature, thus makes it have good memory effect and super-elasticity.
With reference to Fig. 3, marmem packing ring 100a is installed on the first fastening conductor 122a, first pressure-bearing surface 111 of marmem packing ring 100a is pressed on nut 120, second pressure-bearing surface 112 pressure-bearing fastens conductor 122a in first, before installation, the first edge 116 and the second edge 117 be not in same level, without torque wrench during installation, only need to be screwed by nut 120 makes marmem packing ring 100a flatten, and the i.e. first edge 116 and the second edge 117 are positioned at same level.
nullIn the present embodiment, marmem packing ring 100a provides the benefit that: refer to Fig. 4，After nut 120 is tightened，After marmem packing ring 100a is increased to transformation temperature along with the temperature of self，Its shape can recover the parent phase state to this marmem packing ring 100a，The angle of the line i.e. returning to the first intersection point and the line of the 3rd intersection point and the 3rd intersection point and the 4th intersection point is 17 °，I.e. first edge 116 and the second edge 117 be not in same level，Fastening effect due to nut，Thus marmem packing ring 100a produces downward resilience force to the first fastening conductor 122a，Nut 120 can be produced resilience force upwards，And this resilience force raises with temperature and increases，Make contact resistance between the fastened first fastening conductor 122a and the second fastening conductor 122b reduce area to increase，Thus prevent from crossing between the first fastening conductor 122a and second fastening conductor 122b the equipment operation failure of thermal initiation.
Second embodiment
The present embodiment provides a kind of marmem packing ring 100b, and the angle of the line of its first intersection point and the line of the 3rd intersection point and the 3rd intersection point and the 4th intersection point is 20 °；Wherein, the manufacture method of marmem packing ring 100b, use principle are all identical with first embodiment, do not repeat them here.
In the present embodiment, marmem packing ring 100b is NiTi base memorial alloy packing ring.
Refer to Fig. 5, in the present embodiment, the first pressure-bearing surface 111 is a part for sphere, and the i.e. first pressure-bearing surface 111 is arcwall face, and this axial slices was the axial slices in the first ring-type center of circle, edge 116.
Second pressure-bearing surface 112 constitutes the 3rd ring-type edge 118 with the junction of inwall 113, second pressure-bearing surface 112 also constitutes the 4th ring-type edge 119 with the junction of outer wall 114, in the present embodiment, the line of the first intersection point and the 3rd intersection point that are positioned at same axial slices is parallel to the 5th intersection point and the line of the 7th intersection point, i.e. washer body 101 thickness is uniform.
In the present embodiment, second pressure-bearing surface 112 is a part for sphere, i.e. second pressure-bearing surface 112 is arcwall face, and the centre of sphere of the centre of sphere of the first pressure-bearing surface 111 place sphere and the second pressure-bearing surface 112 place sphere overlaps, and this centre of sphere is positioned on the central shaft of marmem washer body 101.It is identical with angle α that the line of the 5th intersection point and the line of the 7th intersection point and the 7th intersection point and the 8th intersection point that are positioned at axial slices is crossed to form angle, i.e. this angle is also 20 °.
nullRefer to Fig. 6，In the present embodiment，Washer body 101 is provided with radiating part 130，This radiating part 130 has multiple method to set up，Such as radiating groove，This radiating groove is positioned at first pressure-bearing surface 111 or second pressure-bearing surface 112 of marmem packing ring 100b，In order to prevent the fracture of radiation processes middle washer body 101，The degree of depth of this radiating groove is preferably the 1/11～1/10 of washer body 101 thickness,In the present embodiment，This radiating part 130 is louvre 123，The most square louvre 123，In the present embodiment，Use circular louvre 123，This louvre 123 runs through first pressure-bearing surface 111 and second pressure-bearing surface 112 of marmem packing ring 100b，It is overheated to avoid between the first electrical connector 122a and marmem pad 100b，Cause the too high equipment operation failure caused of temperature between the first electrical connector 122a and the second electrical connector 122b.
Concrete, the size of louvre 123 and quantity have multiple choices, and those skilled in the art specifically can limit according to practical operation situation.
In the present embodiment, marmem packing ring 100b provides the benefit that: after marmem pad 100b is increased to transformation temperature along with the temperature of self, its shape can be recovered to installing front parent phase state, the angle of the line i.e. returning to the first intersection point and the line of the 3rd intersection point and the 3rd intersection point and the 4th intersection point is 20 °, it can produce one to the nut 120 contacted with the first pressure-bearing surface 111 and upward pressure, and the first electrical connector 122a contacted with the second pressure-bearing surface 112 is produced downward pressure.Owing to the first pressure-bearing surface 111 and the second pressure-bearing surface 112 are cambered surface, this marmem pad 100b, is difficult to because unbalance stress causes marmem pad 100b to overturn to state of applanation uniform force from free state.This marmem pad 100b is provided with louvre 123, make between marmem pad 100b and the first electrical connector 122a the heat produced in mutually extruding, impact process shed, thus prevent from crossing between two electrical connectors the equipment operation failure of thermal initiation.
The foregoing is only preferred embodiment of the present utility model, be not limited to utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a packing ring, it is characterised in that described packing ring is marmem packing ring,
It includes that washer body, described washer body include the first pressure-bearing surface and described first pressure-bearing surface
The second relative pressure-bearing surface, and connect the ring of described first pressure-bearing surface and described second pressure-bearing surface
The inwall of shape and ring-type outer wall, described first pressure-bearing surface constitutes ring with the junction of described inwall
First edge of shape, described first pressure-bearing surface constitutes ring-type second with the junction of described outer wall
Edge, described inwall surrounds the through hole passed for bolt, and described first edge is with described packing ring originally
The axial slices of body forms the first intersection point, the second intersection point, described second edge and axial slices shape
Becoming the 3rd intersection point and the 4th intersection point, the line of described first intersection point and described 3rd intersection point is with described
3rd intersection point is 17 °～20 ° with the angle of the line of described 4th intersection point.
Packing ring the most according to claim 1, it is characterised in that described shape memory
Alloy packing ring is NiTi base memorial alloy packing ring.
Packing ring the most according to claim 1, it is characterised in that described washer body
Thin and thick is uniform.
Packing ring the most according to claim 1, it is characterised in that described first pressure-bearing
Face is arcwall face.
Packing ring the most according to claim 4, it is characterised in that described second pressure-bearing
Face is arcwall face, and described first pressure-bearing surface and described second pressure-bearing surface are a part for sphere,
The centre of sphere of described first pressure-bearing surface place sphere and the centre of sphere of described second pressure-bearing surface place sphere
Overlap.
Packing ring the most according to claim 1, it is characterised in that described second pressure-bearing
Face constitutes the 3rd ring-type edge, described 3rd edge and washer body with described inwall junction
Axial slices form the 5th intersection point, the 6th intersection point, described first intersection point and described 3rd intersection point
Line be perpendicular to the line of described first intersection point and described 5th intersection point.
Packing ring the most according to claim 6, it is characterised in that described washer body
Offering louvre, described louvre runs through described first pressure-bearing surface and described second of described packing ring
Pressure-bearing surface.
Packing ring the most according to claim 7, it is characterised in that described louvre is
Manhole.
Packing ring the most according to claim 7, it is characterised in that described louvre is
Square through hole.
Packing ring the most according to claim 1, it is characterised in that described first pressure-bearing surface
It is shiny surface with described second pressure-bearing surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620521473.0U CN205780217U (en) | 2016-05-31 | 2016-05-31 | A kind of packing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620521473.0U CN205780217U (en) | 2016-05-31 | 2016-05-31 | A kind of packing ring |
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| Publication Number | Publication Date |
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| CN205780217U true CN205780217U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620521473.0U Active CN205780217U (en) | 2016-05-31 | 2016-05-31 | A kind of packing ring |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763090A (en) * | 2016-12-22 | 2017-05-31 | 苏州国嘉记忆合金有限公司 | A kind of locking intelligence embossing pad of memorial alloy superlastic and preparation method thereof |
| CN108425930A (en) * | 2018-04-03 | 2018-08-21 | 杨聪辉 | A kind of heat dissipation nut |
| CN108518402A (en) * | 2018-04-11 | 2018-09-11 | 杨聪辉 | A kind of stop nut |
| CN109595249A (en) * | 2018-12-28 | 2019-04-09 | 杭州电力设备制造有限公司 | A kind of memorial alloy gasket and preparation method thereof |
| CN109887726A (en) * | 2019-03-29 | 2019-06-14 | 国网河南省电力公司电力科学研究院 | A kind of pulling force shim and its bushing shell for transformer draw-bar pull self-checking device |
| CN111059132A (en) * | 2019-12-30 | 2020-04-24 | 西安交通大学 | Connecting device with memory alloy sealing gasket |
| CN111919039A (en) * | 2018-04-08 | 2020-11-10 | 山下敏文 | Gasket ring |
| CN112343716A (en) * | 2019-08-08 | 2021-02-09 | 通用电气公司 | Shape memory alloy isolator for gas turbine engine |
-
2016
- 2016-05-31 CN CN201620521473.0U patent/CN205780217U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106763090A (en) * | 2016-12-22 | 2017-05-31 | 苏州国嘉记忆合金有限公司 | A kind of locking intelligence embossing pad of memorial alloy superlastic and preparation method thereof |
| CN108425930A (en) * | 2018-04-03 | 2018-08-21 | 杨聪辉 | A kind of heat dissipation nut |
| CN108425930B (en) * | 2018-04-03 | 2020-07-10 | 杨聪辉 | Heat dissipation nut |
| CN111919039A (en) * | 2018-04-08 | 2020-11-10 | 山下敏文 | Gasket ring |
| CN111919039B (en) * | 2018-04-08 | 2021-12-24 | 山下敏文 | Gasket ring |
| CN108518402A (en) * | 2018-04-11 | 2018-09-11 | 杨聪辉 | A kind of stop nut |
| CN109595249A (en) * | 2018-12-28 | 2019-04-09 | 杭州电力设备制造有限公司 | A kind of memorial alloy gasket and preparation method thereof |
| CN109595249B (en) * | 2018-12-28 | 2023-10-20 | 杭州电力设备制造有限公司 | Memory alloy gasket and preparation method thereof |
| CN109887726A (en) * | 2019-03-29 | 2019-06-14 | 国网河南省电力公司电力科学研究院 | A kind of pulling force shim and its bushing shell for transformer draw-bar pull self-checking device |
| CN112343716A (en) * | 2019-08-08 | 2021-02-09 | 通用电气公司 | Shape memory alloy isolator for gas turbine engine |
| CN111059132A (en) * | 2019-12-30 | 2020-04-24 | 西安交通大学 | Connecting device with memory alloy sealing gasket |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |