CN106548888A - Prestressing force insulated tension pole production method - Google Patents
Prestressing force insulated tension pole production method Download PDFInfo
- Publication number
- CN106548888A CN106548888A CN201510587966.4A CN201510587966A CN106548888A CN 106548888 A CN106548888 A CN 106548888A CN 201510587966 A CN201510587966 A CN 201510587966A CN 106548888 A CN106548888 A CN 106548888A
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- China
- Prior art keywords
- tension pole
- insulated tension
- wheel
- prestressing force
- core rod
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a kind of prestressing force insulated tension pole production method, clears up and preheat core rod, tooth-like wheel is threaded with respectively at the two ends of core rod, and two ends hand of spiral is contrary.Fiber wire material is wound on core rod, cellosilk should radially be wrapped in the between cog of two ends tooth-like wheel, be then also covered in above radial fiber silk to winding cellosilk again, can the alternately winding of radial direction, ring；Required to bear pulling force standard to calculate radial fiber silk twining amount according to insulated tension pole, actual twining amount is not less than calculating twining amount.Then two ends tooth-like wheel is rotated in the same direction, is made two ends tooth-like wheel expand outward to one fixed width, is made axial direction fibre silk bear specified prestressing force.The present invention saves material.The intensity requirement that can be born according to insulated tension pole needs, the cellosilk consumption of axial direction needed for calculating.Reach the purpose rationally with material.Two ends drawing produces prestressing force, so as to increase product strength.It is easy to into glue, improve product quality.
Description
Technical field
The invention belongs to production technology of the insulated tension pole with reinforcement tubular structure in power transmission and transformation field, and in particular to a kind of prestressing force insulated tension pole production method.
Background technology
Insulated tension pole is the critical piece of chopper, and it carries the responsibility of transmission operating mechanism folding energy to arc-chutes dynamic/static contact, therefore the quality of insulated tension pole concerns the success or failure that chopper cut-offs, closes.Manufacturing industry only carries out the detection of industrial frequency withstand voltage and mechanical performance at present to whole finished product insulated tension pole, all kinds of defects that the live operating circuit breaker of analysis occurs, it is non-stop, failure, the event such as tripping operation, to confirm the damage of defect of the insulating pull rod for breaker in terms of material or finished product internal structure, industrial frequency withstand voltage and mechanical strength are also can detect.Especially high pressure and extra-high voltage switch equipment, during divide-shut brake is carried out, it is desirable to carry out division with the speed of Millisecond.This is accomplished by matched insulated tension pole should good insulating properties, will also have very high mechanical performance and very light weight.With the increasingly reinforcement of switch performance, it is desirable to have the inertia force formed by the weight high acceleration that the more more stable insulated tension pole of light, quality comes in reducing mechanism operating process, it is ensured that usability reliably and with long-term.
Insulation tube used by existing insulated tension pole is mainly constituted using two kinds of forms, and one kind is using glass fiber cloth and surfaces externally and internally（With polyester non-woven fabric as representative）Lax reticulated polyester fibre sleeving is constituted with resin solidification；Another kind is using aramid fiber and surfaces externally and internally（With polyester non-woven fabric as representative）Lax reticulated polyester fibre sleeving or folded yarn are constituted with resin solidification.
All there is shortcoming in both technologies：Made by the first technology, insulation tube weight is larger, and in 1.8～2.1g/cm3, when product size is larger, the bigger operating mechanism of its needs makees diligent to its density, and mechanism can be caused under certain conditions to disconnect.Insulation tube made by second technology compared with weight it is big, and effect is not ideal, causes end article stability poor.
As can be seen here, insulated tension pole is required to bear certain tension intensity when in use, but not rational detection mode, the tension intensity for requiring is met in order to reach, generally require to arrange more reinforcement fibrous layers, so as to increase the volume and weight of insulated tension pole.In addition, in the fiber winding technology of existing insulated tension pole it is mostly be by being looped around on the outside of mould, it is weaker for the contribution of axial compressive force, also generally need to arrange more reinforcement fibrous layers to increase the volume and weight of insulated tension pole.So as to increased work and cost of material.
The content of the invention
The present invention is for problem and drawback present in existing insulated tension pole production technology, there is provided a kind of prestressing force insulated tension pole production method, can save consumptive material, optimizes production process, cost-effective.
For achieving the above object, the present invention is adopted the following technical scheme that：A kind of prestressing force insulated tension pole production method, it is characterised in that comprise the following steps：
Step 1：Core rod is cleared up and preheat, and tooth-like wheel is threaded with respectively at the two ends of core rod, and two ends hand of spiral is contrary.Such as Fig. 1.
Step 2：Fiber wire material is wound on core rod, cellosilk should radially be wrapped in the between cog of two ends tooth-like wheel, be then also covered in above radial fiber silk to winding cellosilk again, can the alternately winding of radial direction, ring；Required to bear pulling force standard to calculate radial fiber silk twining amount according to insulated tension pole, actual twining amount is not less than calculating twining amount.
Step 3：Then two ends tooth-like wheel is rotated in the same direction, is made two ends tooth-like wheel expand outward to one fixed width, is made axial direction fibre silk bear specified prestressing force.
Step 4：Then the core rod for being tied with fibrous material is placed in die cavity；High-temperature vacuum drying is carried out to the fibrous material in die cavity, the air and moisture of fibrous material residual is removed.
Step 5：Epoxy resin, firming agent and accelerator are mixed to get under impregnation technology temperature conditionss by resin according to proportioning and vacuum outgass are standby.
Step 6：The resin that step 5 is obtained injects die cavity from die cavity lower end feeding mouth, and die cavity upper end discharging opening is closed after filling, at least pressurize 1 hour under dwell pressure so that resin impregnated fibrous material.
Step 7：Under dwell pressure, heating is circulated to core rod, and while from feeding mouth resin by injection, carries out one-step solidification from top to bottom, from the inside to the outside.
Step 8：Mould is lowered the temperature, die cavity and core rod is sloughed, the trombone slide that insulate is obtained.
Step 9：Insulation pipe pipe is put in baking oven carries out secondary solidification.
Step 10：The outer surface and bonding location of the pipe pipe that insulate are processed, then insulation pipe pipe and joint are carried out into technique for sticking, after the completion of bonding, obtain the trombone slide that insulate.
In step 2, ring winding adopts cloth, cloth base to be made up of woven dacron and glass fabric simultaneously, and in cloth base, the ratio of woven dacron and glass fabric is 1.6：11.
Pressure impregnation in step 6 is that the compound of epoxy resin and firming agent is injected in cloth base under pressure, and cloth base is bonded together by cloth base complete wetting by the elevated cure in later stage, is referred to as resin mixture, glass fabric fusion overall.
Part of the insulation trombone slide two ends containing tooth-like wheel that can be blocked after molding.
The present invention has the following technical effect that：
1st, save material.The intensity requirement that can be born according to insulated tension pole needs, the cellosilk consumption of axial direction needed for calculating.Reach the purpose rationally with material.
2nd, two ends drawing produces prestressing force.Using the traction force of two ends tooth-like wheel, insulated tension pole prestressing force can be provided, make there is the partial prestressing all the time in finished product, so as to increase product strength.
3rd, it is easy to into glue.The cellosilk of axial direction can be strutted to form gap by two ends tooth-like wheel, be easy to into glue and strike-through, so as to improve product quality.
Description of the drawings
Fig. 1 is the view of the present invention.
In figure, label 1 is mould, and 2 is tooth-like wheel, and 3 is screw thread.
Specific embodiment
Embodiment 1：A kind of prestressing force insulated tension pole production method, comprises the following steps：
Step 1：Core rod is cleared up and preheat, and tooth-like wheel is threaded with respectively at the two ends of core rod, and two ends hand of spiral is contrary.Hand of spiral is conversely, two ends tooth-like wheel can be made while being displaced outwardly, or while move inward, meets axial movement demand.
Step 2：Fiber wire material is wound on core rod, cellosilk should radially be wrapped in the between cog of two ends tooth-like wheel, be then also covered in above radial fiber silk to winding cellosilk again.Can the alternately winding of radial direction, ring.The intensity requirement that can be born according to insulated tension pole needs, the cellosilk consumption of axial direction needed for calculating, actual twining amount is not less than calculating twining amount.Reach the purpose rationally with material.
Step 3：Then two ends tooth-like wheel is rotated in the same direction, is made two ends tooth-like wheel expand outward to one fixed width, is made axial direction fibre silk bear specified prestressing force.Two ends drawing produces prestressing force.Using the traction force of two ends tooth-like wheel, insulated tension pole prestressing force can be provided, make there is the partial prestressing all the time in finished product, so as to increase product strength.
Step 4：Then the core rod for being tied with fibrous material is placed in die cavity；High-temperature vacuum drying is carried out to the fibrous material in die cavity, the air and moisture of fibrous material residual is removed.
Step 5：Epoxy resin, firming agent and accelerator are mixed to get under impregnation technology temperature conditionss by resin according to proportioning and vacuum outgass are standby.
Step 6：The resin that step 5 is obtained injects die cavity from die cavity lower end feeding mouth, and die cavity upper end discharging opening is closed after filling, at least pressurize 1 hour under dwell pressure so that resin impregnated fibrous material；The cellosilk of axial direction can be strutted to form gap by two ends tooth-like wheel, be easy to into glue and strike-through, so as to improve product quality.
Step 7：Under dwell pressure, heating is circulated to core rod, and while from feeding mouth resin by injection, carries out one-step solidification from top to bottom, from the inside to the outside；
Step 8：Mould is lowered the temperature, die cavity and core rod is sloughed, the trombone slide that insulate is obtained.
Step 9：Insulation pipe pipe is put in baking oven carries out secondary solidification.
Step 10：The outer surface and bonding location of the pipe pipe that insulate are processed, then insulation pipe pipe and joint are carried out into technique for sticking, after the completion of bonding, obtain the trombone slide that insulate.
Part of the insulation trombone slide two ends containing tooth-like wheel that can be blocked after molding.
Embodiment 2：On the basis of embodiment 1, can also in step 2, ring winding adopts cloth, cloth base to be made up of woven dacron and glass fabric simultaneously, and in cloth base, the ratio of woven dacron and glass fabric is 1.6：11.
Embodiment 3：On the basis of embodiment 1, pressure impregnation that can also be in step 6 is that the compound of epoxy resin and firming agent is injected in cloth base under pressure, by cloth base complete wetting, cloth base is bonded together by the elevated cure in later stage, is referred to as resin mixture, glass fabric fusion overall.
Claims (5)
1. a kind of prestressing force insulated tension pole production method, it is characterised in that comprise the following steps：
Step 1：Core rod is cleared up and preheat, and tooth-like wheel is threaded with respectively at the two ends of core rod, and two ends hand of spiral is contrary；
Step 2：Fiber wire material is wound on core rod, cellosilk should radially be wrapped in the between cog of two ends tooth-like wheel, be then also covered in above radial fiber silk to winding cellosilk again, can the alternately winding of radial direction, ring；Required to bear pulling force standard to calculate radial fiber silk twining amount according to insulated tension pole, actual twining amount is not less than calculating twining amount；
Step 3：Then two ends tooth-like wheel is rotated in the same direction, is made two ends tooth-like wheel expand outward to one fixed width, is made axial direction fibre silk bear specified prestressing force；
Step 4：Then the core rod for being tied with fibrous material is placed in die cavity；High-temperature vacuum drying is carried out to the fibrous material in die cavity, the air and moisture of fibrous material residual is removed；
Step 5：Epoxy resin, firming agent and accelerator are mixed to get under impregnation technology temperature conditionss by resin according to proportioning and vacuum outgass are standby；
Step 6：The resin that step 5 is obtained injects die cavity from die cavity lower end feeding mouth, and die cavity upper end discharging opening is closed after filling, at least pressurize 1 hour under dwell pressure so that resin impregnated fibrous material；
Step 7：Under dwell pressure, heating is circulated to core rod, and while from feeding mouth resin by injection, carries out one-step solidification from top to bottom, from the inside to the outside；
Step 8：Mould is lowered the temperature, die cavity and core rod is sloughed, the trombone slide that insulate is obtained.
2. prestressing force insulated tension pole production method according to claim 1, it is characterised in that also comprise the steps：Step 9：Insulation pipe pipe is put in baking oven carries out secondary solidification；Step 10：The outer surface and bonding location of the pipe pipe that insulate are processed, then insulation pipe pipe and joint are carried out into technique for sticking, after the completion of bonding, obtain the trombone slide that insulate.
3. prestressing force insulated tension pole production method according to claim 1, it is characterised in that in step 2, ring winding adopt cloth, cloth base to be made up of woven dacron and glass fabric simultaneously, and in cloth base, the ratio of woven dacron and glass fabric is 1.6：11.
4. prestressing force insulated tension pole production method according to claim 1, it is characterized in that, pressure impregnation in step 6 is that the compound of epoxy resin and firming agent is injected in cloth base under pressure, by cloth base complete wetting, cloth base is bonded together by the elevated cure in later stage, is referred to as resin mixture, glass fabric fusion overall.
5. prestressing force insulated tension pole production method according to claim 1 and 2, it is characterised in that part of the insulation trombone slide two ends containing tooth-like wheel blocked after molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587966.4A CN106548888B (en) | 2015-09-16 | 2015-09-16 | Production method of prestressed insulated pull rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510587966.4A CN106548888B (en) | 2015-09-16 | 2015-09-16 | Production method of prestressed insulated pull rod |
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| Publication Number | Publication Date |
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| CN106548888A true CN106548888A (en) | 2017-03-29 |
| CN106548888B CN106548888B (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510587966.4A Expired - Fee Related CN106548888B (en) | 2015-09-16 | 2015-09-16 | Production method of prestressed insulated pull rod |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649502A (en) * | 2018-06-27 | 2020-01-03 | 国网河南省电力公司检修公司 | 200 kN-level hard insulation pull rod of +/-1100 kV extra-high voltage direct-current transmission line |
| CN111794581A (en) * | 2019-08-19 | 2020-10-20 | 河南牛帕力学工程研究院 | Insulating member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334382A (en) * | 2013-07-15 | 2013-10-02 | 天津城建大学 | High-strength fiber material wedge anchoring device and construction method thereof |
| CN104112614A (en) * | 2014-01-03 | 2014-10-22 | 山东泰开高压开关有限公司 | Manufacturing method for insulating pull rod used for 800kV circuit breaker |
| CN104290335A (en) * | 2014-09-30 | 2015-01-21 | 麦克奥迪（厦门）电气股份有限公司 | Production process of insulation pull rod |
-
2015
- 2015-09-16 CN CN201510587966.4A patent/CN106548888B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334382A (en) * | 2013-07-15 | 2013-10-02 | 天津城建大学 | High-strength fiber material wedge anchoring device and construction method thereof |
| CN104112614A (en) * | 2014-01-03 | 2014-10-22 | 山东泰开高压开关有限公司 | Manufacturing method for insulating pull rod used for 800kV circuit breaker |
| CN104290335A (en) * | 2014-09-30 | 2015-01-21 | 麦克奥迪（厦门）电气股份有限公司 | Production process of insulation pull rod |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649502A (en) * | 2018-06-27 | 2020-01-03 | 国网河南省电力公司检修公司 | 200 kN-level hard insulation pull rod of +/-1100 kV extra-high voltage direct-current transmission line |
| CN110649502B (en) * | 2018-06-27 | 2021-11-05 | 国网河南省电力公司检修公司 | ±1100kV UHV DC transmission line 200kN grade rigid insulating rod |
| CN111794581A (en) * | 2019-08-19 | 2020-10-20 | 河南牛帕力学工程研究院 | Insulating member |
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| Publication number | Publication date |
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| CN106548888B (en) | 2020-06-12 |
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Granted publication date: 20200612 |