CN112713040A - Tripping connecting rod and production process thereof - Google Patents
Tripping connecting rod and production process thereof Download PDFInfo
- Publication number
- CN112713040A CN112713040A CN201911019746.6A CN201911019746A CN112713040A CN 112713040 A CN112713040 A CN 112713040A CN 201911019746 A CN201911019746 A CN 201911019746A CN 112713040 A CN112713040 A CN 112713040A
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- China
- Prior art keywords
- rod body
- core rod
- insulating
- core
- connecting rod
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/12—Adaptation for built-in fuse
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulating Bodies (AREA)
Abstract
The invention relates to a tripping connecting rod and a production process thereof. Compared with the prior art that the tripping connecting rod is integrally formed by one material, the tripping connecting rod is divided into two parts, namely the core rod body and the insulating coating layer coated on the outer side of the core rod body, so that the core rod body can be made of the material with higher tensile strength, the tripping connecting rod can meet the standard of the tensile strength, and the insulating coating layer coated outside enables the tripping connecting rod to integrally meet the insulating requirement, thereby ensuring the long-term effective operation of the tripping connecting rod and avoiding the occurrence of fracture accidents.
Description
Technical Field
The invention relates to a tripping connecting rod and a production process thereof.
Background
At present, a tripping connecting rod used by a load switch-fuse combined electrical apparatus is long in length, small in diameter and required to have certain tensile strength, but in the prior art, when the tripping connecting rod is processed, the tripping connecting rod is simply formed by integrally pressing unsaturated polyester glass fiber molding compound, so that the produced tripping connecting rod cannot reach the tensile standard, the situation that the tripping connecting rod is broken frequently occurs in the use process, and the combined electrical apparatus cannot work normally.
Disclosure of Invention
The invention aims to provide a tripping connecting rod to solve the technical problems that the strength of the tripping connecting rod is not enough and the tripping connecting rod is often broken in the prior art; meanwhile, the invention also aims to provide a production process of the tripping connecting rod.
The invention adopts the following technical scheme that:
a trip link, comprising:
the two ends of the core rod body are respectively provided with a hinge structure;
and the insulating cladding is wrapped on the outer side of the core rod body and is fixedly connected with the core rod body.
The beneficial effects are that: compared with the prior art that the tripping connecting rod is integrally formed by one material, the tripping connecting rod is divided into two parts, namely the core rod body and the insulating coating layer coated on the outer side of the core rod body, so that the core rod body can be made of the material with higher tensile strength, the tripping connecting rod can meet the standard of the tensile strength, and the insulating coating layer coated outside enables the tripping connecting rod to integrally meet the insulating requirement, so that the long-term effective operation of the tripping connecting rod can be ensured, and the occurrence of fracture accidents is avoided.
Further, the core rod body is a laminated glass cloth plate rod body.
The beneficial effects are that: the laminated glass cloth plate has higher tensile strength, and meets the tensile strength requirement of the tripping connecting rod; and the laminated glass cloth plate can avoid cooling shrinkage deformation, and when an insulating cladding is formed by injection molding, injection molding or compression molding, the form and position tolerance of the core rod body and the cladding in the molding process is ensured.
Furthermore, the insulating cladding is made of unsaturated polyester glass fiber molding compound.
The beneficial effects are that: the unsaturated polyester glass fiber molding compound has better insulating property, and the unsaturated polyester glass fiber molding compound is conveniently formed by pressing.
Further, the surface of the core rod body is of a concave-convex structure.
The beneficial effects are that: the relief structure facilitates press bonding of the insulating cladding to the surface of the core rod body.
Further, the concave-convex structure is annular grooves which are arranged on the surface of the core rod body at intervals along the axial direction.
The beneficial effects are that: the processing and forming of the concave-convex structure on the surface of the core rod body are facilitated.
Furthermore, a plurality of convex ring structures are arranged on the outer surface of the insulating cladding at intervals along the axial direction.
The beneficial effects are that: the bulge loop structure can increase the creepage distance of the insulating cladding and improve the insulating property.
Furthermore, the core rod body is an insulating rod body, and the hinge structure is exposed out of the insulating wrapping layer.
The beneficial effects are that: the wrapping operation of an insulating wrapping layer is not needed to be carried out on the hinged structure, so that the processing of the tripping connecting rod is simpler.
The production process of the tripping connecting rod adopts the following technical scheme:
a production process of a tripping connecting rod is characterized in that an insulating coating is wrapped on the outer side of a core rod body with two ends respectively provided with a hinge structure, and the core rod body and the insulating coating are in an integral structure.
The beneficial effects are that: the tripping connecting rod manufactured by the process can select the core rod body with higher structural strength to meet the tensile strength, and also meets the insulation requirement by wrapping the insulation cladding, so that the performance of the manufactured tripping connecting rod is more reliable.
Furthermore, the insulating cladding is made of unsaturated polyester glass fiber molding compound, and the insulating cladding is wrapped on the outer side of the core rod body by adopting a pressing process.
The beneficial effects are that: the pressing process is adopted to facilitate the insulation cladding made of unsaturated polyester glass fiber molding compound to be wrapped and fixed on the core rod body.
Further, before wrapping up the insulating covering at the core body of rod, carry out sand blasting to the core body of rod earlier, wash the core body of rod again, get rid of surface impurity, then carry out drying process to the core body of rod again.
The beneficial effects are that: the sand blasting treatment can improve the surface roughness of the core rod body, and is beneficial to the pressing combination of the insulating cladding and the surface of the core rod body.
Further, after the core rod body is dried, the surface of the core rod body is coated with an adhesive.
The beneficial effects are that: the bonding strength between the surface of the core rod body and the insulating cladding is improved.
Furthermore, the core rod body is a laminated glass cloth plate rod body, and when the core rod body is wrapped by the insulating wrapping layer, the hinge structure is exposed outside the wrapping layer.
The beneficial effects are that: the wrapping operation of an insulating wrapping layer is not needed to be carried out on the hinged structure, so that the processing of the tripping connecting rod is simpler.
Drawings
Fig. 1 is a front view of a trip link embodiment 1 of the present invention;
FIG. 2 is a front view of the core rod of FIG. 1.
In the figure: 1-insulating cladding, 2-core rod body, 3-umbrella skirt, 4-reinforcing rib, 5-tripping connecting rod, 6-ring groove, 7-hinge hole and 8-main rod body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
Embodiment 1 of the trip link of the present invention:
as shown in fig. 1, the trip link 5 is composed of a core rod body 2 and an insulating coating 1, and the insulating coating 1 is coated on the outer circumferential surface of the core rod body 2. Specifically, the insulating sheath 1 is fixedly attached to the outer circumferential surface of the core rod 2 by a pressing process. In the embodiment, the core rod body 2 is made of the laminated glass cloth plate, and the laminated glass cloth plate not only has higher tensile strength, but also avoids cooling shrinkage deformation, so that the form and position tolerance of the core rod body 2 and the insulating cladding 1 in the compression molding process is ensured; the insulating cladding 1 is made of unsaturated polyester glass fiber molding compound, the unsaturated polyester glass fiber molding compound has good insulating property and good high-temperature fluidity, so that the insulating requirement of the tripping connecting rod is met, and the tripping connecting rod can be effectively wrapped on the outer peripheral surface of the core rod body 2 in a mold.
The concrete structure of the core rod body 2 is shown in fig. 2, the core rod body 2 is a columnar rod body extending along the left-right direction, two ends of the core rod body 2 are provided with hinge structures, and the hinge structures are hinge holes 7; the middle part of the core rod body 2 between the hinged structures at the two ends is a main rod body 8 wrapped by the insulating cladding 1, and the cross section of the main rod body 8 is square; annular grooves 6 are uniformly dug in the left-right direction on the outer peripheral surface of the main rod body 8 at intervals, so that the outer peripheral surface of the main rod body 8 is of a concave-convex structure, and the insulating cladding 1 and the core rod body 2 are conveniently pressed and combined; four edges extending in the left-right direction on the main rod body 8 are all subjected to blunting treatment so as to avoid stress cracking of the edges in the pressing process.
The insulating cladding 1 as can be seen from fig. 1, the insulating cladding 1 is fixedly bonded to the outer peripheral surface of the main rod 8 of the core rod 1 by a pressing process, so that the shape of the insulating cladding 1 is the same as that of the outer peripheral surface of the main rod 8. A plurality of convex ring structures are uniformly formed on the outer peripheral surface of the insulating cladding 1 at intervals in the left-right direction, each convex ring structure forms an umbrella skirt 3 on the outer surface of the insulating cladding 1, and the umbrella skirt 3 increases the creepage distance of the insulating cladding 1, so that the insulating performance is improved. There are strengthening ribs 4 along left right direction still shaping on the surface of insulating covering 1, and the quantity of strengthening ribs 4 is two in this embodiment, and two strengthening ribs 4 set up on two relative sides of insulating covering 1, and strengthening rib 4 is through improving the structural strength of insulating covering 1, and then improves the holistic structural strength of dropout connecting rod. The embodiment 2 of the trip link according to the present invention is different from the embodiment 1 in that the hinge structures at both ends of the core rod body are hinge shafts.
In embodiment 3 of the trip link according to the present invention, the core rod body is made of nylon, and the tensile strength of the core rod body made of nylon only needs to meet the requirement of the tensile strength of the trip link, unlike embodiment 1. Of course, in other embodiments, the material of the core rod body may also be metal, and in this case, the surface of the core rod body needs to be completely wrapped with an insulating cladding.
The embodiment 4 of the trip link according to the present invention is different from the embodiment 1 in that the insulating clad is made of nylon, and the insulating clad is wrapped around the outer circumferential surface of the core rod body by an injection molding process. Of course, in other embodiments, the material of the insulating cladding may also be epoxy resin, and at this time, the insulating cladding is wrapped on the outer circumferential surface of the core rod body through an injection process.
In embodiment 5 of the trip link according to the present invention, the main rod body wrapped with the insulating coating on the core rod body has an elliptical cross-section. Of course, in other embodiments, the cross section of the main rod body wrapped by the insulating cladding on the core rod body can also be circular.
Embodiment 6 of the trip link of the present invention, the surface of the core rod body is a smooth structure.
In embodiment 7 of the trip link of the present invention, no shed or rib is provided on the outer surface of the insulating coating.
The invention also provides a production process of the tripping connecting rod, and the specific embodiment 1 of the production process of the tripping connecting rod is as follows:
(1) performing sand blasting treatment on the surface of the core rod body to improve the surface roughness of the core rod body;
(2) cleaning the surface of the core rod body by using alcohol to remove impurities on the surface of the core rod body;
(3) putting the core rod body into a 160 ℃ oven for drying treatment for 1 h;
(4) coating adhesive on the outer peripheral surface of the core rod body;
(5) and placing the core rod body in a mold cavity, placing unsaturated polyester glass fiber molding compound in the mold cavity, and then pressing, molding and demolding the core rod body and the unsaturated polyester glass fiber molding compound.
The embodiment 2 of the production process of the tripping connecting rod is different from the embodiment 1 in that the insulating cladding and the core rod body are fixedly connected by adopting an injection molding process. Of course, in other embodiments, the insulating cladding and the core rod body can also be fixedly connected by adopting an injection process.
The embodiment 3 of the production process of the tripping connecting rod is different from the embodiment 1 in that the surface of the core rod body is not subjected to sand blasting treatment, cleaning treatment and drying treatment, and the adhesive is directly coated.
The embodiment 4 of the production process of the tripping connecting rod is different from the embodiment 1 in that the surface of the core rod body is directly placed in a mold cavity for pressing without coating an adhesive after sand blasting, cleaning and drying treatment.
The embodiment 5 of the production process of the tripping connecting rod is different from the embodiment 1 in that the drying temperature of the core rod body is lower than 160 ℃, and the drying time of the core rod body is prolonged.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. A trip link, comprising:
the two ends of the core rod body are respectively provided with a hinge structure;
and the insulating cladding is wrapped on the outer side of the core rod body and is fixedly connected with the core rod body.
2. The trip link of claim 1, wherein the core shaft is a laminated glass cloth plate shaft.
3. The trip link of claim 1, wherein the insulating cladding is an unsaturated polyester glass molding compound cladding.
4. The trip link of any of claims 1-3, wherein the surface of the core shaft is of an concavo-convex configuration.
5. The trip link of claim 4, wherein the relief structure is annular grooves axially spaced on the surface of the core shank.
6. The trip link of any of claims 1-3, wherein the outer surface of the insulating cladding has a plurality of axially spaced raised ring structures formed thereon.
7. A production process of a tripping connecting rod is characterized in that,
the outer sides of the core rod bodies, both ends of which are respectively provided with the hinged structures, are wrapped with insulating coatings, and the core rod bodies and the insulating coatings are in an integral structure.
8. The process for producing the trip link of claim 7, wherein the insulation covering is made of unsaturated polyester glass fiber molding compound, and the insulation covering is wrapped on the outer side of the core rod body by a pressing process.
9. The process for producing the trip link according to claim 7 or 8, wherein the core rod body is subjected to sand blasting before the insulating coating is coated on the core rod body, and then the core rod body is cleaned to remove surface impurities and then dried.
10. The process for producing a trip link according to claim 9 wherein the core shaft is dried and then an adhesive is applied to the surface of the core shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019746.6A CN112713040A (en) | 2019-10-24 | 2019-10-24 | Tripping connecting rod and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911019746.6A CN112713040A (en) | 2019-10-24 | 2019-10-24 | Tripping connecting rod and production process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112713040A true CN112713040A (en) | 2021-04-27 |
Family
ID=75540374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911019746.6A Pending CN112713040A (en) | 2019-10-24 | 2019-10-24 | Tripping connecting rod and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112713040A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263824Y (en) * | 1995-06-10 | 1997-10-01 | 襄樊电力设备厂 | Synthetic insulation pull rod |
| CN101494107A (en) * | 2009-03-10 | 2009-07-29 | 西安高强绝缘电气有限责任公司 | Method for producing sandstorm resistance insulator core pin with umbrella for railway |
| CN102157252A (en) * | 2011-04-14 | 2011-08-17 | 株洲时代新材料科技股份有限公司 | Manufacturing method and product of composite cross arm insulator |
| CN202563995U (en) * | 2012-02-14 | 2012-11-28 | 江阴市华尔胜绝缘材料有限公司 | High-intensity epoxy laminated glass cloth board |
| CN206163408U (en) * | 2016-11-07 | 2017-05-10 | 株洲通达铁路电机有限公司 | Insulation pull rod of vacuum breaker |
| CN206921593U (en) * | 2017-04-27 | 2018-01-23 | 江苏神马电力股份有限公司 | Insulator |
| CN108933059A (en) * | 2017-05-24 | 2018-12-04 | 句容市福润电气有限公司 | A kind of mating insulated pull rod of indoor vacuum circuit breaker |
-
2019
- 2019-10-24 CN CN201911019746.6A patent/CN112713040A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2263824Y (en) * | 1995-06-10 | 1997-10-01 | 襄樊电力设备厂 | Synthetic insulation pull rod |
| CN101494107A (en) * | 2009-03-10 | 2009-07-29 | 西安高强绝缘电气有限责任公司 | Method for producing sandstorm resistance insulator core pin with umbrella for railway |
| CN102157252A (en) * | 2011-04-14 | 2011-08-17 | 株洲时代新材料科技股份有限公司 | Manufacturing method and product of composite cross arm insulator |
| CN202563995U (en) * | 2012-02-14 | 2012-11-28 | 江阴市华尔胜绝缘材料有限公司 | High-intensity epoxy laminated glass cloth board |
| CN206163408U (en) * | 2016-11-07 | 2017-05-10 | 株洲通达铁路电机有限公司 | Insulation pull rod of vacuum breaker |
| CN206921593U (en) * | 2017-04-27 | 2018-01-23 | 江苏神马电力股份有限公司 | Insulator |
| CN108933059A (en) * | 2017-05-24 | 2018-12-04 | 句容市福润电气有限公司 | A kind of mating insulated pull rod of indoor vacuum circuit breaker |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210427 |