WO2024087556A1 - Conical tool for manufacturing medium-voltage cable head - Google Patents

Conical tool for manufacturing medium-voltage cable head Download PDF

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Publication number
WO2024087556A1
WO2024087556A1 PCT/CN2023/090848 CN2023090848W WO2024087556A1 WO 2024087556 A1 WO2024087556 A1 WO 2024087556A1 CN 2023090848 W CN2023090848 W CN 2023090848W WO 2024087556 A1 WO2024087556 A1 WO 2024087556A1
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WIPO (PCT)
Prior art keywords
voltage cable
cable head
conical tool
making
truncated cone
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PCT/CN2023/090848
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French (fr)
Chinese (zh)
Inventor
杨振
翁文
叶知文
张平
陈瑜
董高义
刘子煌
Original Assignee
华能(福州长乐)光伏发电有限责任公司
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Priority to DE212023000038.5U priority Critical patent/DE212023000038U1/en
Publication of WO2024087556A1 publication Critical patent/WO2024087556A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Definitions

  • the utility model relates to a cone-shaped tool for making a medium-voltage cable head, belonging to the technical field of electric power.
  • the three-phase cores are manually bent to produce elastic deformation and separated. Since the main insulation of medium-voltage cables is mostly made of cross-linked polyethylene and the conductor is made of copper or aluminum, the elastic deformation will recover quickly. After recovery, the core spacing does not meet the requirements, which is inconvenient for construction. If the artificial bending force is too large, causing a large deformation of the cable core, the main insulation material may be squeezed and no longer uniform and symmetrical, which will cause uneven electric field distribution during cable operation, reduce the cable life and may even cause breakdown.
  • the utility model aims to provide a conical tool for making a medium voltage cable head, so as to solve the problems of construction difficulty, poor workmanship and even cable damage caused by insufficient spacing between three-phase cable cores proposed in the above background technology.
  • a cone tool for making a medium voltage cable head comprising:
  • the truncated cone body has a plurality of annular array guide grooves formed on its axis.
  • a handle is installed on the large end surface of the truncated cone body.
  • the truncated table body and/or the handle are made of wooden material to prevent metal materials from damaging the outer semi-conductive layer and main insulation of the cable.
  • the handle has an arc-shaped surface structure at one end away from the truncated cone body.
  • the arc-shaped structure has no edges and corners and will not hurt the hand.
  • the truncated cone body can be easily pulled out from the cable core through the handle.
  • the phase guide groove extends from the edge of the small end face of the truncated cone body to the large end face to form an arc-shaped groove structure with a gradually increasing inner diameter, and the spacing between the phase guide grooves increases from the small end face of the truncated cone body to the large end face, so that each phase of the three-phase core of the cable fits well in the groove and the position is not easily displaced.
  • phase guide grooves there are three groups of phase guide grooves.
  • the side walls of the truncated table body staggered with the guide grooves are movably connected with elastic strips.
  • the elastic strip is provided with adjustment holes evenly along its length direction.
  • one end of the elastic strip is movably connected to the side wall of the truncated cone body through a connecting piece, and the connecting piece is snap-fitted with any group of adjustment holes.
  • it also includes at least one group of wire core tension adjustment wedge pieces, and the wire core tension adjustment wedge pieces are adapted to the structure of the guide grooves.
  • the conical auxiliary tool of this proposal is used to ensure the core spacing and avoid damage to the cable due to elastic deformation or excessive bending by human force; it is suitable for the production process of medium-voltage cable terminal heads and intermediate heads to facilitate construction and improve process quality.
  • an elastic strip is wound around the cable core to assist in clamping the truncated cone body and improve the clamping force
  • Fig. 1 is a schematic diagram of the structure of the utility model.
  • the truncated table body 1, the handle 3 and the wire core tension adjustment wedge 7 are made of insulated wood material;
  • the connecting piece 5 is a rivet structure made of insulating material;
  • the elastic strip 4 is an elastically deformable and insulating rubber strip;
  • the side wall of the truncated cone body 1 is provided with three sets of phase guide grooves 2 in a circular array centered on its axis.
  • the phase guide grooves 2 extend from the small end face to the large end face of the truncated cone body 1 and are in an arc-shaped groove structure with a gradually increasing inner diameter.
  • a handle 3 is fixedly connected to the center position of the large end face of the truncated cone body 1.
  • the outer diameter of the handle 3 gradually increases from the large end face of the truncated cone body 1 to the other end, and the other end of the handle 3 is in a hemispherical structure.
  • the truncated cone body 1 is placed at the branch of the cable core, with the small end face of the truncated cone body 1 facing the cable core.
  • the truncated cone body 1 is pushed by the handle 3 to be inserted into the three cable cores, so that the cable cores are relatively inserted into the corresponding phase guide grooves 2.
  • the three cable cores are automatically separated along the set direction.
  • the clamping force (elastic deformation) between the three cores keeps the truncated cone body 1 in a fixed position so that the core spacing meets the construction requirements, which is convenient for circumferential cutting of the copper shielding layer and reducing burrs; it is convenient for circumferential cutting of the outer semi-conductive layer and chamfering of the outer semi-conductive layer. It reduces the construction difficulty and improves the construction quality.
  • the elastic deformation degrees of the three wire cores are the same, ensuring that the distances between the wire cores are the same after recovery.
  • the spacing between two adjacent phase guide grooves 2 increases from the small end surface to the large end surface, and the distance between the phase guide groove 2 and the axis of the truncated cone body 2 increases from the small end surface to the large end surface, so that the wire core is slowly elastically deformed and separated under the guidance of the trajectory of the phase guide groove 2.
  • the degree of separation of the three wire cores guided by the truncated cone body 1 is fixed, and the cable will not be damaged due to excessive bending by human force.
  • One end of the elastic strip 4 is freely rotatably connected to the outer wall of the truncated cone body 1 through a connecting piece 5, and a plurality of adjustment holes 6 are arranged in a line at equal intervals between the two ends of the elastic strip 4, and the adjustment holes 6 are adapted to the structure of the connecting piece 5;
  • the elastic strip 4 When in use, the elastic strip 4 surrounds the outside of the cable core, and the connecting piece 5 is clamped with one group of adjustment holes 6 (can be disengaged by external force) to form a closed-loop structure. At this time, the elastic strip 4 of the closed-loop structure relatively binds the three groups of cable cores in the corresponding phase guide grooves 2 of the truncated table body 1, thereby increasing the clamping force.
  • the connecting piece 5 is engaged with different adjusting holes 6 to adjust the tightness of the elastic strip 4 of the closed loop.
  • the appearance of the wire core tension adjustment wedge 7 is adapted to the phase guide groove 2.
  • the wire core tension adjustment wedge 7 is inserted between the inner wall of the phase guide groove 2 and the corresponding cable core along the axial direction of the truncated cone body 1. The tightness between the cable core and the truncated cone body 1 at this location can be adjusted according to the insertion depth.
  • this proposal reduces the possibility of damaging the cable copper shield and main insulation during construction due to insufficient spacing between the three-phase cable cores, reduces the difficulty of making cable terminal heads and intermediate heads, and improves the process quality.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing Of Terminals (AREA)

Abstract

A conical tool for manufacturing a medium-voltage cable head. The conical tool comprises a frustum main body (1). A plurality of guide recesses (2) are provided on a sidewall of the frustum main body, and are arranged in an annular array using an axis of the frustum main body as the center. A handle (3) is installed on a large end surface of the frustum main body. The use of the conical tool ensures the spacing between wire cores, thereby preventing elastic deformation or damage to the cable caused by excessive manual bending force.

Description

一种用于中压电缆头制作的锥型工具A cone tool for making medium voltage cable heads 技术领域Technical Field
本实用新型涉及一种用于中压电缆头制作的锥型工具，属于电力技术领域。The utility model relates to a cone-shaped tool for making a medium-voltage cable head, belonging to the technical field of electric power.
背景技术Background technique
在现有技术中，电缆头制作人员用手将电缆线芯折出一定弧度使之产生形变使线芯分开。比如，在三相线芯分开处撑开电缆纤芯，使每相间距增大，达到便于剥切铜屏敝、外半导电层；目前的做法是施工人员用力将电缆线芯折出一定弧度使之产生形变，进而使线芯间距满足便于施工的要求。In the prior art, cable head makers manually fold the cable core into a certain arc to deform it and separate the cores. For example, the cable core is stretched out at the separation of the three-phase cores to increase the spacing between each phase, so as to facilitate the stripping of the copper shield and the outer semi-conductive layer; the current practice is that construction workers use force to fold the cable core into a certain arc to deform it, so as to make the spacing between the cores meet the requirements for easy construction.
在制作电缆头时，人为将三相线芯折弯产生弹性形变分开后，因中压电缆主绝缘多为交联聚乙烯材料，导体为铜或铝材质，弹性形变后很快恢复，恢复后线芯间距不满足要求，不便施工。若人为弯曲力度过大，使电缆线芯发生较大形变，则可能使主绝缘材料收到挤压而不再均匀对称，进而引起电缆运行过程中电场分布不均匀，减少电缆寿命甚至可能导致击穿。When making cable heads, the three-phase cores are manually bent to produce elastic deformation and separated. Since the main insulation of medium-voltage cables is mostly made of cross-linked polyethylene and the conductor is made of copper or aluminum, the elastic deformation will recover quickly. After recovery, the core spacing does not meet the requirements, which is inconvenient for construction. If the artificial bending force is too large, causing a large deformation of the cable core, the main insulation material may be squeezed and no longer uniform and symmetrical, which will cause uneven electric field distribution during cable operation, reduce the cable life and may even cause breakdown.
实用新型Utility Model
本实用新型的目的在于提供一种用于中压电缆头制作的锥型工具，以解决上述背景技术中提出的电缆三相线芯间距不足造成的施工困难、工艺差甚至电缆损伤问题。The utility model aims to provide a conical tool for making a medium voltage cable head, so as to solve the problems of construction difficulty, poor workmanship and even cable damage caused by insufficient spacing between three-phase cable cores proposed in the above background technology.
本实用新型的技术方案如下：The technical solution of the utility model is as follows:
一种用于中压电缆头制作的锥型工具，包括：A cone tool for making a medium voltage cable head, comprising:
圆台主体，所述圆台主体以其轴线开设有若干环形阵列的相导槽。The truncated cone body has a plurality of annular array guide grooves formed on its axis.
优选的，所述圆台主体的大端面安装有手柄。Preferably, a handle is installed on the large end surface of the truncated cone body.
优选的，所述圆台主体和/或手柄采用木制材料制成，避免金属材料对电缆外半导电层、主绝缘造成损伤。Preferably, the truncated table body and/or the handle are made of wooden material to prevent metal materials from damaging the outer semi-conductive layer and main insulation of the cable.
优选的，所述手柄远离圆台主体一端呈弧形面结构，弧形结构没有棱角不会伤手，通过手柄方便将圆台主体从电缆线芯中抽出。Preferably, the handle has an arc-shaped surface structure at one end away from the truncated cone body. The arc-shaped structure has no edges and corners and will not hurt the hand. The truncated cone body can be easily pulled out from the cable core through the handle.
优选的，所述相导槽从圆台主体小端面边缘延伸至大端面呈内径渐增的弧形槽结构，所述相导槽之间的间距从圆台主体小端面向大端面递增，以使电缆三相线芯每一相均很好地贴合何在槽内，位置不易偏移。Preferably, the phase guide groove extends from the edge of the small end face of the truncated cone body to the large end face to form an arc-shaped groove structure with a gradually increasing inner diameter, and the spacing between the phase guide grooves increases from the small end face of the truncated cone body to the large end face, so that each phase of the three-phase core of the cable fits well in the groove and the position is not easily displaced.
优选的，所述相导槽有三组。Preferably, there are three groups of phase guide grooves.
优选的，所述圆台主体错开相导槽的侧壁活动连接有弹性条。Preferably, the side walls of the truncated table body staggered with the guide grooves are movably connected with elastic strips.
优选的，所述弹性条延其长度方向均匀开设有调节孔。Preferably, the elastic strip is provided with adjustment holes evenly along its length direction.
优选的，所述弹性条一端通过连接件活动连接在圆台主体侧壁，所述连接件与任意一组调节孔卡接配合。Preferably, one end of the elastic strip is movably connected to the side wall of the truncated cone body through a connecting piece, and the connecting piece is snap-fitted with any group of adjustment holes.
优选的，还包括至少一组线芯松紧调节楔形片，所述线芯松紧调节楔形片与相导槽的结构相适配。Preferably, it also includes at least one group of wire core tension adjustment wedge pieces, and the wire core tension adjustment wedge pieces are adapted to the structure of the guide grooves.
本实用新型具有如下有益效果：The utility model has the following beneficial effects:
采用本提案的锥型辅助工具，保证线芯间距，避免了弹性形变或者人为用力弯曲过度损伤电缆；适用于中压电缆终端头、中间头制作过程中，达到便于施工、提高工艺质量的目的。The conical auxiliary tool of this proposal is used to ensure the core spacing and avoid damage to the cable due to elastic deformation or excessive bending by human force; it is suitable for the production process of medium-voltage cable terminal heads and intermediate heads to facilitate construction and improve process quality.
为了避免对电缆纤芯剥切铜屏敝、外半导电层的过程中，若干电缆线芯的夹紧力不足造成圆台主体的脱离，通过弹性条缠绕电缆纤芯辅助夹紧圆台主体提高夹紧力；In order to avoid the detachment of the truncated cone body due to insufficient clamping force of some cable cores during the process of stripping the copper shield and outer semi-conductive layer of the cable core, an elastic strip is wound around the cable core to assist in clamping the truncated cone body and improve the clamping force;
或者，将线芯松紧调节楔形片插入相导槽内，通过塞进的深度调节该处松紧程度。Alternatively, insert the wire core tension adjustment wedge into the phase guide groove and adjust the tightness at that location by the insertion depth.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本实用新型结构示意图。Fig. 1 is a schematic diagram of the structure of the utility model.
图中附图标记表示为：The reference numerals in the figure are as follows:
1、圆台主体；2、相导槽；3、手柄；4、弹性条；5、连接件；6、调节孔；7、线芯松紧调节楔形片。1. Round table body; 2. Phase guide groove; 3. Handle; 4. Elastic strip; 5. Connector; 6. Adjustment hole; 7. Wedge-shaped piece for adjusting the tightness of the wire core.
实施方式Implementation
下面结合附图和具体实施例来对本实用新型进行详细的说明。The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
实施例Example
如图1所示：As shown in Figure 1:
圆台主体1、手柄3和线芯松紧调节楔形片7采用木质材料制成可绝缘；连接件5结构为绝缘材质制成的铆钉结构；弹性条4采用可弹性变形且绝缘的橡皮条；The truncated table body 1, the handle 3 and the wire core tension adjustment wedge 7 are made of insulated wood material; the connecting piece 5 is a rivet structure made of insulating material; the elastic strip 4 is an elastically deformable and insulating rubber strip;
圆台主体1的侧壁以其轴线为中心环形阵列开设有三组相导槽2，相导槽2从圆台主体1小端面延伸至大端面并且呈内径渐增的弧形槽结构；在圆台主体1大端面中心位置固接有一手柄3，手柄3的外径从圆台主体1大端面向另一端逐渐变大，且手柄3另一端呈半球形结构。The side wall of the truncated cone body 1 is provided with three sets of phase guide grooves 2 in a circular array centered on its axis. The phase guide grooves 2 extend from the small end face to the large end face of the truncated cone body 1 and are in an arc-shaped groove structure with a gradually increasing inner diameter. A handle 3 is fixedly connected to the center position of the large end face of the truncated cone body 1. The outer diameter of the handle 3 gradually increases from the large end face of the truncated cone body 1 to the other end, and the other end of the handle 3 is in a hemispherical structure.
在中压电缆终端头（三线芯）、中间头制作过程中，将圆台主体1放置于电缆线芯分支处，圆台主体1的小端面朝向电缆线芯，通过手柄3用力推动圆台主体1插入三根电缆线芯内，使得电缆线芯相对插入一一对应的相导槽2内，在相导槽2的限位引导下三根电缆线芯沿设定的方向自动分开，三根线芯间的夹紧力（弹性变形）使圆台主体1保持在固定位置而使线芯间距满足施工要求，便于环切铜屏敝层，减少毛刺；便于环切外半导电层及对外半导电层倒角处理。降低施工难度，提高施工质量。During the production of the medium voltage cable terminal head (three-core) and the intermediate head, the truncated cone body 1 is placed at the branch of the cable core, with the small end face of the truncated cone body 1 facing the cable core. The truncated cone body 1 is pushed by the handle 3 to be inserted into the three cable cores, so that the cable cores are relatively inserted into the corresponding phase guide grooves 2. Under the guidance of the phase guide grooves 2, the three cable cores are automatically separated along the set direction. The clamping force (elastic deformation) between the three cores keeps the truncated cone body 1 in a fixed position so that the core spacing meets the construction requirements, which is convenient for circumferential cutting of the copper shielding layer and reducing burrs; it is convenient for circumferential cutting of the outer semi-conductive layer and chamfering of the outer semi-conductive layer. It reduces the construction difficulty and improves the construction quality.
由于线芯始终贴合在对应的相导槽2内侧壁，使得三根线芯的弹性变形程度相同，保证恢复后线芯间距相同。Since the wire cores are always attached to the inner side walls of the corresponding phase guide grooves 2, the elastic deformation degrees of the three wire cores are the same, ensuring that the distances between the wire cores are the same after recovery.
两两相邻相导槽2之间的间距从相导槽2小端面向大端面递增，相导槽2与圆台主体2轴线之间的距离从相导槽2小端面开始向大端面递增。使得线芯在相导槽2轨迹引导下缓慢弹性变形分开。The spacing between two adjacent phase guide grooves 2 increases from the small end surface to the large end surface, and the distance between the phase guide groove 2 and the axis of the truncated cone body 2 increases from the small end surface to the large end surface, so that the wire core is slowly elastically deformed and separated under the guidance of the trajectory of the phase guide groove 2.
通过圆台主体1引导三根线芯的弹性变形分开的程度是固定的，不会因为人为用力弯曲过度造成电缆损伤。The degree of separation of the three wire cores guided by the truncated cone body 1 is fixed, and the cable will not be damaged due to excessive bending by human force.
弹性条4一端通过连接件5自由旋转连接在圆台主体1外侧壁，弹性条4的两端之间等间距一字排列开设有若干调节孔6，调节孔6与连接件5的结构相适配；One end of the elastic strip 4 is freely rotatably connected to the outer wall of the truncated cone body 1 through a connecting piece 5, and a plurality of adjustment holes 6 are arranged in a line at equal intervals between the two ends of the elastic strip 4, and the adjustment holes 6 are adapted to the structure of the connecting piece 5;
使用时，弹性条4环绕电缆线芯外侧一圈，并将连接件5与其中一组调节孔6卡接（可使用外力脱离）配合形成闭环结构，此时，闭环结构的弹性条4相对将三组电缆线芯绑在圆台主体1对应的相导槽2内，提高夹紧力。When in use, the elastic strip 4 surrounds the outside of the cable core, and the connecting piece 5 is clamped with one group of adjustment holes 6 (can be disengaged by external force) to form a closed-loop structure. At this time, the elastic strip 4 of the closed-loop structure relatively binds the three groups of cable cores in the corresponding phase guide grooves 2 of the truncated table body 1, thereby increasing the clamping force.
连接件5与不同的调节孔6卡接实现调节闭环的弹性条4松紧程度。The connecting piece 5 is engaged with different adjusting holes 6 to adjust the tightness of the elastic strip 4 of the closed loop.
线芯松紧调节楔形片7的外型与相导槽2相适配，为了调节电缆线芯相对圆台主体1的弯曲程度，将线芯松紧调节楔形片7沿圆台主体1轴线方向插入相导槽2内侧壁和对应的电缆线芯之间，可根据塞入的深度调节该处电缆线芯与圆台主体1之间的松紧程度。The appearance of the wire core tension adjustment wedge 7 is adapted to the phase guide groove 2. In order to adjust the bending degree of the cable core relative to the truncated cone body 1, the wire core tension adjustment wedge 7 is inserted between the inner wall of the phase guide groove 2 and the corresponding cable core along the axial direction of the truncated cone body 1. The tightness between the cable core and the truncated cone body 1 at this location can be adjusted according to the insertion depth.
与现有电缆头制作过程中不采用辅助工具的方法相比，本提案降低了因电缆三相线芯间距不足导致施工时损伤电缆铜屏蔽、主绝缘的可能性，降低了电缆终端头、中间头的制作难度，提高了工艺质量。Compared with the existing method of not using auxiliary tools in the cable head production process, this proposal reduces the possibility of damaging the cable copper shield and main insulation during construction due to insufficient spacing between the three-phase cable cores, reduces the difficulty of making cable terminal heads and intermediate heads, and improves the process quality.
以上所述仅为本实用新型的实施例，并非因此限制本实用新型的专利范围，凡是利用本实用新型说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本实用新型的专利保护范围内。The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims (9)

  1. 一种用于中压电缆头制作的锥型工具，其特征在于：包括：A conical tool for making a medium voltage cable head, characterized in that it comprises:
    圆台主体（1），所述圆台主体（1）以其轴线开设有若干环形阵列的相导槽（2），所述相导槽（2）从圆台主体（1）小端面边缘延伸至大端面呈内径渐增的弧形槽结构，所述相导槽（2）之间的间距从圆台主体（1）小端面向大端面递增。A truncated cone body (1), wherein the truncated cone body (1) is provided with a plurality of phase guide grooves (2) in an annular array on its axis, wherein the phase guide grooves (2) extend from the edge of the small end face of the truncated cone body (1) to the large end face and are in an arc-shaped groove structure with a gradually increasing inner diameter, and the spacing between the phase guide grooves (2) increases from the small end face to the large end face of the truncated cone body (1).
  2. 如权利要求1所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述圆台主体（1）的大端面安装有手柄（3）。The conical tool for making a medium voltage cable head according to claim 1, characterized in that a handle (3) is installed on the large end surface of the frustum body (1).
  3. 如权利要求2所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述圆台主体（1）和/或手柄（3）采用木制材料制成。The conical tool for making a medium voltage cable head according to claim 2, characterized in that the frustum body (1) and/or the handle (3) are made of wooden material.
  4. 如权利要求2所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述手柄（3）远离圆台主体（1）一端呈弧形面结构。The conical tool for making a medium voltage cable head according to claim 2 is characterized in that the end of the handle (3) away from the frustum body (1) is in an arc-shaped structure.
  5. 如权利要求1所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述相导槽（2）有三组。A conical tool for making a medium voltage cable head according to claim 1, characterized in that: there are three groups of phase guide grooves (2).
  6. 如权利要求1所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述圆台主体（1）错开相导槽（2）的侧壁活动连接有弹性条（4）。A conical tool for making a medium voltage cable head according to claim 1, characterized in that the side walls of the truncated cone body (1) staggered with the guide groove (2) are movably connected with an elastic strip (4).
  7. 如权利要求6所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述弹性条（4）延其长度方向均匀开设有调节孔（6）。A conical tool for making a medium voltage cable head according to claim 6, characterized in that the elastic strip (4) is evenly provided with adjustment holes (6) along its length.
  8. 如权利要求7所述的一种用于中压电缆头制作的锥型工具，其特征在于：所述弹性条（4）一端通过连接件（5）活动连接在圆台主体（1）侧壁，所述连接件（5）与任意一组调节孔（6）卡接配合。A conical tool for making a medium voltage cable head according to claim 7, characterized in that one end of the elastic strip (4) is movably connected to the side wall of the truncated cone body (1) through a connecting piece (5), and the connecting piece (5) is snap-fitted with any group of adjustment holes (6).
  9. 如权利要求1所述的一种用于中压电缆头制作的锥型工具，其特征在于：还包括至少一组线芯松紧调节楔形片（7），所述线芯松紧调节楔形片（7）与相导槽（2）的结构相适配。A conical tool for making a medium voltage cable head according to claim 1, characterized in that it also includes at least one set of wire core tension adjustment wedges (7), wherein the wire core tension adjustment wedges (7) are adapted to the structure of the phase guide groove (2).
PCT/CN2023/090848 2022-10-27 2023-04-26 Conical tool for manufacturing medium-voltage cable head WO2024087556A1 (en)

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DE212023000038.5U DE212023000038U1 (en) 2022-10-27 2023-04-26 Tapered tool for producing medium voltage cable heads

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CN202222849884.0 2022-10-27
CN202222849884.0U CN218958250U (en) 2022-10-27 2022-10-27 Cone-shaped tool for manufacturing medium-voltage cable head

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205081348U (en) * 2015-09-09 2016-03-09 长春职业技术学院（长春市职业技术教育中心长春市财政学校） Quadded cable deconcentrator among power line
CN107681567A (en) * 2017-10-10 2018-02-09 李丰儒 A kind of power high voltage cable branch device
CN207150057U (en) * 2017-05-12 2018-03-27 国网陕西省电力公司榆林供电公司 A kind of cable neutral section
CN115548834A (en) * 2022-10-27 2022-12-30 华能(福州长乐)光伏发电有限责任公司 A tapered instrument for making medium voltage cable head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN205081348U (en) * 2015-09-09 2016-03-09 长春职业技术学院（长春市职业技术教育中心长春市财政学校） Quadded cable deconcentrator among power line
CN207150057U (en) * 2017-05-12 2018-03-27 国网陕西省电力公司榆林供电公司 A kind of cable neutral section
CN107681567A (en) * 2017-10-10 2018-02-09 李丰儒 A kind of power high voltage cable branch device
CN115548834A (en) * 2022-10-27 2022-12-30 华能(福州长乐)光伏发电有限责任公司 A tapered instrument for making medium voltage cable head

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