CN204558166U - A kind of composite electric insulator core bar structure - Google Patents
A kind of composite electric insulator core bar structure Download PDFInfo
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- CN204558166U CN204558166U CN201520152412.7U CN201520152412U CN204558166U CN 204558166 U CN204558166 U CN 204558166U CN 201520152412 U CN201520152412 U CN 201520152412U CN 204558166 U CN204558166 U CN 204558166U
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- insulator
- core bar
- bar structure
- composite electric
- electric insulator
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Abstract
The utility model discloses a kind of composite electric insulator core bar structure, belong to composite insulator structure field.The vertical section of described plug, in " work " font, comprises upper, middle and lower segment." work " described in the utility model font mandrel structure coordinates to be formed with the step blind hole in nonrigid connector and is firmly connected, and fit tightly with insulator umbrella cover, make composite insulator have certain elasticity and good mechanical strength, axially can bear larger stress.
Description
Technical field
The utility model belongs to composite insulator structure field, is specifically related to a kind of composite electric insulator core bar structure.
Background technology
Existing composite insulator, primarily of the connection gold utensil composition at the sheath of resin plug, synthetic material, full skirt and two ends, has intensity high, good toughness, is easy to processing, the advantages such as resistance to soiling is good, lightweight compared with porcelain insulator.Its application is increasingly extensive, but, still there are some defects in existing composite insulator, in existing composite insulator, each assembly adopts the mode of bonding or pressing to connect usually, the firmness connected is limited, easily be damaged when insulator bears larger stress, shorten its useful life, in addition, radial direction (perpendicular to the center line) stress that existing composite insulator can bear is very limited, frangibility, also easily therefore causes the damage of peripheral umbrella cover, thus destruction sealing, cause decreasing insulating.These defects significantly limit the application of insulator umbrella cover, especially in the contact net system of electric railway and urban track traffic, electric locomotive is in running, its pantograph and contact wire contact-making surface are in sliding friction state, under the stressing conditions of composite insulator is in variable condition, and normally flowed for ensureing, need between bow net to keep enough contacts, therefore, to the intensity of composite insulator and the stability under dynamic stress state, there is higher requirement.
Utility model content
For the problems referred to above, inventor improves existing composite insulator structure, by arranging a nonrigid connector, plug, umbrella cover and connection gold utensil are closely combined as a whole, composite insulator is made to have certain elasticity and good mechanical strength, and axially larger stress can be born with radial, under dynamic stress state, also there is outstanding stability.Namely the utility model provides the composite electric insulator core bar structure that a kind of and above-mentioned nonrigid connector matches.
The purpose of this utility model is realized by following technical proposals:
A kind of composite electric insulator core bar structure, the vertical section of described plug, in " work " font, comprises upper, middle and lower segment.During use, stage casing and the hypomere of described " work " character form structure are fastened in the blind hole of nonrigid connector, make both form firmly compact siro spinning technology, increase composite insulator to the ability to bear of axial force, the epimere of described " work " character form structure can fit tightly with insulator umbrella cover.The upper end of described composite electric insulator core bar structure is also provided with the mechanism be fixedly connected with upper end gold utensil.As optional, upper end gold utensil can be inlayed and be fixed in plug, and the mode such as to be threaded also can be adopted to be fixed in plug.
Alternately, in above-mentioned composite electric insulator core bar structure, on the excessive face between the epimere of described " work " character form structure and stage casing and or " work " character form structure bottom surface on be provided with double wedge.By arranging the fit depressions of corresponding position on described double wedge and nonrigid connector, both can be made further to combine tightr, larger transverse component can be born, extend the useful life of composite insulator, avoid damaging and produce fault, ensure that composite insulator also has outstanding stability under dynamic stress state.
Alternately, in above-mentioned composite electric insulator core bar structure, described double wedge ringwise or in straight type, can also be other common shapes.
Alternately, in above-mentioned composite electric insulator core bar structure, the cross section of described double wedge is in " V " type.Being conducive to Force decomposition is axial and radial both direction, avoids single direction stressed too large.
Alternately, in above-mentioned composite electric insulator core bar structure, the axle center place of described plug upper surface is provided with the screwed hole for being fixedly connected with upper end gold utensil.
Alternately, in above-mentioned composite electric insulator core bar structure, the diameter of described plug epimere is greater than the diameter of hypomere, and the diameter of hypomere is greater than the diameter in stage casing.This diameter is distributed with and is beneficial to plug and the engaging of nonrigid connector, also facilitates plug and umbrella cover to fit.
Alternately, in above-mentioned composite electric insulator core bar structure, the outer cylinder of described plug stage casing and/or hypomere is provided with annular double wedge.Described annular double wedge can be engaged mutually with the ring slot being arranged on corresponding position on nonrigid connector make both combine more firm.
Alternately, in above-mentioned composite electric insulator core bar structure, the outer cylinder of the epimere of described plug is provided with ring slot, can be engaged mutually with the annular double wedge on insulator umbrella cover inwall make both combine more firm.
Alternately, the quantity of above-mentioned annular double wedge and ring slot occlusion structure is multiple.Further, the rectangular in cross-section of the ring slot in above-mentioned annular double wedge and ring slot occlusion structure or using compared with trapezoidal as opening of minor face.More be conducive to bearing larger axial force and not slippage.
Alternately, in above-mentioned composite electric insulator core bar structure, described plug is nylon material.Adopt nylon not easily embrittlement, tensile strength is high, not yielding fracture, easy when processing cannelure and serrate slot, can ensure precision simultaneously, stablizes with bond rubber.
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way
The beneficial effects of the utility model:
" work " described in the utility model font mandrel structure coordinates to be formed with the step blind hole in nonrigid connector and is firmly connected, and fit tightly with insulator umbrella cover, make composite insulator have certain elasticity and good mechanical strength, axially can bear larger stress.
Accompanying drawing explanation
Fig. 1 is the main pseudosection of a kind of composite insulator nonrigid connector described in the utility model;
Fig. 2 is the upward view of a kind of composite insulator nonrigid connector of the present invention;
Fig. 3 is the front view of a kind of composite insulator described in the utility model;
Fig. 4 is the main pseudosection of a kind of composite insulator described in the utility model;
Fig. 5 is the main pseudosection of a kind of lower end gold utensil in composite insulator described in the utility model;
Fig. 6 is the main pseudosection of another composite insulator nonrigid connector described in the utility model;
Fig. 7 is the structural representation of a kind of composite electric insulator core bar described in the utility model;
Fig. 8 is the main pseudosection of another composite insulator described in the utility model.
Accompanying drawing illustrates: 1 is upper end gold utensil, and 2 is plug, and 21 is the double wedge on plug end face and excessive face, 3 is nonrigid connector, 31 be step blind hole, 32 is annular slot, 33 for annular groove, and 34 is the groove of nonrigid connector upper surface and step blind hole bottom surface, 4 is lower end gold utensil, 41 is projection, and 42 is hole, and 43 is screwed hole, 5 is umbrella cover, 6 is double wedge-tooth socket fit structure, and 61 is ring slot, and 62 is annular double wedge.
Embodiment
By the following examples the utility model is specifically described; what be necessary to herein means out is that the present embodiment is only for being further described the utility model; but can not be interpreted as the restriction to the utility model protection range, the person skilled in the art in this field can make improvement and the adjustment of some non-intrinsically safes to the utility model according to above-mentioned content of the present utility model.
embodiment 1
As shown in Figure 7, a kind of composite electric insulator core bar structure, the vertical section of described plug 2, in " work " font, comprises upper, middle and lower segment.During use, stage casing and the hypomere of described " work " character form structure are fastened in the step blind hole 31 of nonrigid connector 3, make both form firmly compact siro spinning technology, increase composite insulator to the ability to bear of axial force, the epimere of described " work " character form structure can fit tightly with insulator umbrella cover.The upper end of described composite electric insulator core bar structure is also provided with the mechanism be fixedly connected with upper end gold utensil.As optional, upper end gold utensil can be inlayed and be fixed in plug, and the mode such as to be threaded also can be adopted to be fixed in plug.
Alternately, in above-mentioned composite electric insulator core bar structure, on the excessive face between the epimere of described " work " character form structure and stage casing and or " work " character form structure bottom surface on be provided with double wedge 21.Match with the groove 34 of corresponding position on nonrigid connector 3 by arranging described double wedge 21, both can be made further to combine tightr, larger transverse component can be born, extend the useful life of composite insulator, avoid damaging and produce fault, ensure that composite insulator also has outstanding stability under dynamic stress state.
Alternately, in above-mentioned composite electric insulator core bar structure, described double wedge 21 ringwise or in straight type, can also be other common shapes.
Alternately, in above-mentioned composite electric insulator core bar structure, the cross section of described double wedge 21 is in " V " type.Being conducive to Force decomposition is axial and radial both direction, avoids single direction stressed too large.
Alternately, in above-mentioned composite electric insulator core bar structure, the axle center place of described plug 2 upper surface is provided with the screwed hole for being fixedly connected with upper end gold utensil 1.
Alternately, in above-mentioned composite electric insulator core bar structure, the diameter of described plug 2 epimere is greater than the diameter of hypomere, and the diameter of hypomere is greater than the diameter in stage casing.This diameter is distributed with and is beneficial to plug and the engaging of nonrigid connector, also facilitates plug and umbrella cover to fit.
Alternately, in above-mentioned composite electric insulator core bar structure, the outer cylinder of described plug 2 stage casing and/or hypomere is provided with annular double wedge 62.Described annular double wedge 62 can be engaged mutually with the ring slot 61 being arranged on corresponding position on nonrigid connector 3 make both combine more firm.
Alternately, in above-mentioned composite electric insulator core bar structure, the outer cylinder of the epimere of described plug 2 is provided with ring slot 61, can be engaged mutually with the annular double wedge 62 on insulator umbrella cover inwall make both combine more firm.
Alternately, the quantity of above-mentioned annular double wedge and ring slot occlusion structure 6 is multiple.Further, the rectangular in cross-section of the ring slot 61 in above-mentioned annular double wedge and ring slot occlusion structure 6 or using compared with trapezoidal as opening of minor face.More be conducive to bearing larger axial force and not slippage.
Alternately, in above-mentioned composite electric insulator core bar structure, described plug 2 is nylon material.Adopt nylon not easily embrittlement, tensile strength is high, not yielding fracture, easy when processing cannelure and serrate slot, can ensure precision simultaneously, stablizes with bond rubber.
embodiment 2
As illustrated in fig. 1 and 2, a kind of nonrigid connector for composite insulator, described nonrigid connector 3 monnolithic case is column, its axle center, upper surface place is provided with up-small and down-big step blind hole 31, for connecting insulator plug, its cylinder is provided with annular slot 32, for the lower end gold utensil of clamping insulator.
Alternately, described nonrigid connector lower surface is provided with annular groove 33.Making nonrigid connector inside have certain space by arranging groove, can absorb and cushion the radial forces that nonrigid connector is subject to.As optional, the bottom of described annular groove can, close to the upper surface of nonrigid connector, make groove have the larger degree of depth, and groove is more conducive to absorbing and buffering radial forces more deeply.
Alternately, the inwall of described nonrigid connector outer cylinder and/or step blind hole is provided with ring slot 61.The ring slot that the inwall of described step blind hole is arranged is engaged mutually with the double wedge of plug corresponding position, makes both combine more firm.Described nonrigid connector outer cylinder can comprise for the ring slot (being positioned at the lower end of described outer cylinder) be engaged mutually with gold utensil corresponding position, lower end with for the ring slot (being positioned at the upper end of described outer cylinder) be engaged mutually with insulator umbrella cover corresponding position.Ring slot makes to combine between each parts more firm by the structure that annular groove matches with annular double wedge, can bear larger axial force and relative sliding and damage do not occur.
Alternately, the inwall of described nonrigid connector outer cylinder and/or step blind hole is provided with multiple ring slot.
Alternately, in above-mentioned nonrigid connector, the rectangular in cross-section of described ring slot or using compared with trapezoidal as opening of minor face.More be conducive to bearing larger axial force and not slippage.
Alternately, described nonrigid connector is natural rubber material.Obtain through vertical injection molding machine injection moulding.
embodiment 3:
As shown in Figure 6, a kind of nonrigid connector for composite insulator, described nonrigid connector 3 monnolithic case is column, its axle center, upper surface place is provided with up-small and down-big step blind hole 31, for connecting insulator plug, its cylinder is provided with annular slot 32, for the lower end gold utensil of clamping insulator, the upper surface of described nonrigid connector and or the bottom surface of step blind hole be provided with groove.Match with the double wedge of corresponding position on core rod of insulator by arranging described groove, both can be made further to combine tightr, larger transverse component can be born, extend the useful life of composite insulator, avoid damaging and produce fault, ensure that composite insulator also has outstanding stability under dynamic stress state.
Alternately, in above-mentioned nonrigid connector, described groove is cannelure or straight trough, can also be other common shapes.
Alternately, in above-mentioned nonrigid connector, the cross section of described groove is in " V " type." V " type of employing groove, being conducive to Force decomposition is axial and radial both direction, avoids single direction stressed too large.
Alternately, described nonrigid connector lower surface is provided with annular groove 33.Making nonrigid connector inside have certain space by arranging groove, can absorb and cushion the radial forces that nonrigid connector is subject to.As optional, the bottom of described annular groove can, close to the upper surface of nonrigid connector, make groove have the larger degree of depth, and groove is more conducive to absorbing and buffering radial forces more deeply.
Alternately, the inwall of described nonrigid connector outer cylinder and/or step blind hole is provided with ring slot 61.The ring slot that the inwall of described step blind hole is arranged is engaged mutually with the double wedge of plug corresponding position, makes both combine more firm.Described nonrigid connector outer cylinder can comprise for the ring slot (being positioned at the lower end of described outer cylinder) be engaged mutually with gold utensil corresponding position, lower end with for the ring slot (being positioned at the upper end of described outer cylinder) be engaged mutually with insulator umbrella cover corresponding position.Ring slot makes to combine between each parts more firm by the structure that annular groove matches with annular double wedge, can bear larger axial force and relative sliding and damage do not occur.
Alternately, the inwall of described nonrigid connector outer cylinder and/or step blind hole is provided with multiple ring slot.
Alternately, in above-mentioned nonrigid connector, the rectangular in cross-section of described ring slot or using compared with trapezoidal as opening of minor face.More be conducive to bearing larger axial force and not slippage.
Alternately, described nonrigid connector is natural rubber material.Obtain through vertical injection molding machine injection moulding.
embodiment 4
As shown in Fig. 3 and 4 or Fig. 8, a kind of composite insulator, comprise upper end gold utensil 1, lower end gold utensil 4, core rod of insulator 2, insulator umbrella cover 5 and nonrigid connector 3, described upper end gold utensil 1 is fixedly connected on described core rod of insulator 2 upper end, described core rod of insulator 2 lower end is fixedly connected with nonrigid connector 3, described lower end gold utensil 4 is fixedly connected with nonrigid connector 3 cylinder lower end, described insulator umbrella cover 5 integral coating is at described core rod of insulator 2, the outer cylinder of nonrigid connector 3 and lower end gold utensil 4, described core rod of insulator 2 is any one core rod of insulator 2 described in embodiment 1, described nonrigid connector 3 is any one nonrigid connector 3 matched with above-mentioned core rod of insulator described in embodiment 2 or 3.
Alternately, in above-mentioned composite insulator, between described core rod of insulator 2 and described nonrigid connector 3 and/or between described core rod of insulator 2 and described insulator umbrella cover 5 and/or between described nonrigid connector 3 and described insulator umbrella cover 5 and/or between described nonrigid connector 3 and described lower end gold utensil 4, and/or be provided with double wedge-tooth socket fit structure 6 between described lower end gold utensil 4 and described insulator umbrella cover 5.Make mutually to be engaged between parts by double wedge-tooth socket fit structure, connect more firm, larger axial force can be born and relative sliding and damage do not occur.Further, in described double wedge-tooth socket fit structure 6 teeth groove 61 rectangular in cross-section or using compared with trapezoidal as opening of minor face, be more conducive to bearing larger axial force and not slippage.
Alternately, in above-mentioned composite insulator, upper end gold utensil 1, lower end gold utensil 4, core rod of insulator 2, insulator umbrella cover 5 and nonrigid connector 3 are all coaxially arranged.
Alternately, in above-mentioned composite insulator, the upper end of described composite electric insulator core bar 2 is also provided with the mechanism be fixedly connected with upper end gold utensil 1.As optional, upper end gold utensil 1 can be inlayed and be fixed in plug 2, and the mode such as to be threaded also can be adopted to be fixed in plug, as described in the axle center place of plug upper surface the screwed hole (as shown in Figure 7) being used for being fixedly connected with upper end gold utensil is set.
Alternately, in above-mentioned composite insulator, the vertical section of described plug 2 is in " work " font, and comprise upper, middle and lower segment, the upper surface of described nonrigid connector 3 is provided with up-small and down-big step blind hole 31(as shown in Figure 1 and Figure 4).Stage casing and the hypomere of described " work " character form structure are fastened in the blind hole 31 of nonrigid connector, both are made to form firmly compact siro spinning technology, increase composite insulator to the ability to bear of axial force, the epimere of described " work " character form structure can fit tightly with insulator umbrella cover.
Alternately, in above-mentioned composite insulator, on excessive face between the epimere of described " work " character form structure and stage casing and or " work " character form structure bottom surface on be provided with double wedge 21, the upper surface of described nonrigid connector 3 and or the bottom surface of step blind hole to be provided with the described outstanding groove 34(matched as Suo Shi Fig. 6 ~ 8).Match with groove 34 by arranging described double wedge 21, both can be made further to combine tightr, larger transverse component can be born, extend the useful life of composite insulator, avoid damaging and produce fault, ensure that composite insulator also has outstanding stability under dynamic stress state.Further, described double wedge ringwise or in straight type, can also be other common shapes.Further, the cross section of described double wedge is in " V " type.Being conducive to Force decomposition is axial and radial both direction, avoids single direction stressed too large.
Alternately, in above-mentioned composite insulator, the diameter of described plug 2 epimere is greater than the diameter of hypomere, and the diameter of hypomere is greater than the diameter in stage casing.This diameter is distributed with and is beneficial to plug and the engaging of nonrigid connector, also facilitates plug and umbrella cover to fit.
Alternately, in above-mentioned composite insulator, the inwall of described nonrigid connector 3 step blind hole 31 is provided with ring slot 61, the outer cylinder of described plug stage casing and/or hypomere is provided with the annular double wedge 62 matched with described ring slot, further, the quantity of above-mentioned annular double wedge and ring slot occlusion structure is multiple.
Alternately, in above-mentioned composite insulator, between the outer cylinder of described plug 2 epimere and above-mentioned insulator umbrella cover 5 inwall, be provided with double wedge described in one or more groups-tooth socket fit structure 6.
Alternately, in above-mentioned composite insulator, described plug 2 is nylon material.Adopt nylon not easily embrittlement, tensile strength is high, not yielding fracture, easy when processing cannelure and serrate slot, can ensure precision simultaneously, stablizes with bond rubber.
Alternately, in above-mentioned composite insulator, described nonrigid connector 3 monnolithic case is column, its cylinder is provided with annular slot 32, for the lower end gold utensil 4 of clamping insulator, the upper end of described lower end gold utensil 4 arranges porose 42, and end, hole 42 is provided with the projection 41 matched with described annular slot 32.To be engaged with draw-in groove 32 by described projection 41, then Surface coating insulator umbrella cover outside, make nonrigid connector, lower end gold utensil, insulator umbrella cover three combines closely, larger axial force can be born.
Alternately, in above-mentioned composite insulator, described nonrigid connector monnolithic case is column, and its outer cylinder bottom is provided with ring slot 61, the upper end of described lower end gold utensil arranges porose 42, hole 42 inwall is provided with the annular double wedge 62 matched with described ring slot.Further, be connected by organizing double wedge-tooth socket fit structure 6 between described nonrigid connector and the hole inwall of lower end gold utensil more.
Alternately, in above-mentioned composite insulator, top and described insulator umbrella cover 5 inwall of described nonrigid connector 3 outer cylinder fit tightly.Double wedge described in one or more groups-tooth socket fit structure 6 is provided with between the top of further described nonrigid connector 3 outer cylinder and described insulator umbrella cover 5 inwall.
Alternately, in above-mentioned composite insulator, described nonrigid connector 3 lower surface is provided with annular groove 33(as illustrated in fig. 1 and 2).Making nonrigid connector inside have certain space by arranging groove, can absorb and cushion the radial forces that nonrigid connector is subject to.As optional, the bottom of described annular groove can, close to the upper surface of nonrigid connector, make groove have the larger degree of depth, and groove is more conducive to absorbing and buffering radial forces more deeply.
Alternately, in above-mentioned composite insulator, described nonrigid connector 3 is natural rubber material.Obtain through vertical injection molding machine injection moulding.
Alternately, in above-mentioned composite insulator, described lower end gold utensil 4 is aluminum component, and further, described lower end gold utensil 4 has split-type structural, is convenient to install fix.Alternately, the lower end of described lower end gold utensil 4 is also provided with screwed hole 43.Further described screwed hole 43 is conical screw hole (as shown in Figure 5).
Alternately, in above-mentioned composite insulator, outer cylinder and described insulator umbrella cover 5 inwall of described lower end gold utensil 4 fit tightly.Double wedge described in one or more groups-tooth socket fit structure 6 is provided with between the column jacket of further lower end gold utensil 4 and described insulator umbrella cover 5 inwall.
Alternately, described insulator umbrella cover is silicon rubber material.
The foregoing is only preferred embodiment of the present utility model, is only illustrative for the utility model, and nonrestrictive; Those of ordinary skill in the art understand, and can carry out many changes in the spirit and scope that the utility model limits to it, amendment, and even equivalence is changed, but all will fall into protection range of the present utility model.
Claims (10)
1. a composite electric insulator core bar structure, is characterized in that, the vertical section of described plug, in " work " font, comprises upper, middle and lower segment.
2. composite electric insulator core bar structure according to claim 1, is characterized in that, on the excessive face between the epimere of described " work " character form structure and stage casing and or " work " character form structure bottom surface on be provided with double wedge.
3. composite electric insulator core bar structure according to claim 2, is characterized in that, described double wedge is ringwise or in straight type.
4. composite electric insulator core bar structure according to claim 2, is characterized in that, the cross section of described double wedge is in " V " type.
5. composite electric insulator core bar structure according to claim 1, is characterized in that, the axle center place of described plug upper surface is provided with the screwed hole for being fixedly connected with upper end gold utensil.
6. composite electric insulator core bar structure according to claim 1, is characterized in that, the diameter of described plug epimere is greater than the diameter of hypomere, and the diameter of hypomere is greater than the diameter in stage casing.
7. composite electric insulator core bar structure according to claim 1, is characterized in that, described plug stage casing and or hypomere outer cylinder on be provided with annular double wedge.
8. composite electric insulator core bar structure according to claim 1, is characterized in that, the outer cylinder of the epimere of described plug is provided with ring slot.
9. composite electric insulator core bar structure according to claim 8, is characterized in that, the rectangular in cross-section of described ring slot or using compared with trapezoidal as opening of minor face.
10. composite electric insulator core bar structure according to claim 1, is characterized in that, described plug is nylon material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520152412.7U CN204558166U (en) | 2015-03-18 | 2015-03-18 | A kind of composite electric insulator core bar structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520152412.7U CN204558166U (en) | 2015-03-18 | 2015-03-18 | A kind of composite electric insulator core bar structure |
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| CN204558166U true CN204558166U (en) | 2015-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847429A (en) * | 2017-03-13 | 2017-06-13 | 咸阳直标机电设备有限公司 | A kind of broadcast, the insulator of TV and communication equipment |
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2015
- 2015-03-18 CN CN201520152412.7U patent/CN204558166U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847429A (en) * | 2017-03-13 | 2017-06-13 | 咸阳直标机电设备有限公司 | A kind of broadcast, the insulator of TV and communication equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20200318 |