Wire drawing device for pultrusion of composite on-load tap-changer insulating main shaft

Abstract

The utility model discloses a wire drawing device for pultrusion of an insulating main shaft of a composite on-load tap-changer. The wire drawing device comprises an upper wire drawing mechanism and a lower wire drawing mechanism, the upper wire drawing mechanism comprises an upper supporting plate, an upper bottom plate and an upper stress block; the upper supporting plate is arranged along the direction of the stay wire; the upper bottom plate is horizontally fixed to the bottom of the upper supporting plate. The upper stress blocks are a plurality of strip-shaped plates which are fixed at the bottom of the upper bottom plate and are vertical to the direction of the stay wire; the lower wire pulling mechanism comprises a lower supporting plate, a lower bottom plate and a lower stress block; the lower supporting plate is arranged along the direction of the stay wire; the lower bottom plate is horizontally fixed to the top of the lower supporting plate and located below the upper bottom plate. The lower stress blocks are a plurality of long-strip-shaped plates which are fixed to the top of the lower bottom plate and are perpendicular to the direction of the stay wire. Meanwhile, the lower stress blocks are located below the upper stress blocks, and the lower stress blocks and the upper stress blocks are arranged in a staggered mode. The utility model can effectively solve the problems of yarn asynchronization, product slipping, rough product surface, internal clearance residue and uneven appearance color, and effectively improves the qualified rate of the insulating main shaft during continuous production.

Description

TECHNICAL FIELD

[0001] The utility model belongs to composite type on -load tap -changer manufacturing technical field, concretely relates to a kind of composite type on -load tap -changer insulating main shaft pulley device for pultrusion forming. BACKGROUND

[0002] At present, the insulating main shaft of composite type on-load tap-changer is usually manufactured by pultrusion forming process during manufacturing. However, the existing pultrusion forming process causes yarn to be out of sync and slip during the pultrusion forming process of the insulating main shaft due to uneven yarn compression force, which causes the product to slip, blocks the mold, damages the mold and causes material waste. Meanwhile, it also leads to rough product surface, residual gap in pultruded insulating tube, discharge phenomenon of insulating parts, insulation breakdown, short circuit, power outage of substation supplied line, substation transformer fire, substation transformer repair, serious economic loss and social negative impact. SUMMARY

[0003] To solve the above problems, the utility model aims to provide a kind of composite type on -load tap -changer insulating main shaft pulley device for pultrusion forming. The pulley device can effectively solve the problems of yarn out of sync, product slip, rough product surface, internal residual gap and uneven appearance color. It effectively improves the pass rate of insulating main shaft during continuous production and ensures the insulating level of the main shaft.

[0004] The utility model achieves the following technical solutions:

[0005] A kind of composite type on -load tap -changer insulating main shaft pulley device for pultrusion forming, including upper pull line mechanism and lower pull line mechanism;The upper pull line mechanism includes upper support plate, upper bottom plate and upper stress block;The upper support plate is arranged along the pull line direction;The upper bottom plate is horizontally fixed at the bottom of upper support plate;The upper stress block is a plurality of long strip plates fixed at the bottom of upper bottom plate and perpendicular to the pull line direction;The lower pull line mechanism is located directly below the upper pull line mechanism, and it includes lower support plate, lower bottom plate and lower stress block;The lower support plate is arranged along the pull line direction;The lower bottom plate is horizontally fixed at the top of lower support plate and located below the upper bottom plate and the upper stress block;The lower stress block is a plurality of long strip plates fixed at the top of lower bottom plate and perpendicular to the pull line direction, and the lower stress block is located below the upper stress block and staggered with the upper stress block, and the whole is made of novel high molecular composite material or stainless steel. Uniformly compress the glass fiber bundle through the traction machine to realize the same force of each glass fiber bundle.

[0006] The utility model has the following advantages:

[0007] The utility model discloses a novel composite material is made, can continuously use for many times, simple structure, and the part category is few, and the assembly is simple, improves conversion production efficiency. Through the device, the glass fiber bundle is pressed tightly through the tractor, realizes that each glass fiber bundle advances under the same force, thereby avoids the slip of glass silk out of step, makes the glass fiber bundle not slip through the mould synchronously, avoids the mould. Meanwhile, the traction speed of the glass fiber bundle through the line drawing device is even and does not jam, thereby the internal residual gap of the main shaft and the surface are not smooth. Meanwhile, the appearance color of the insulation main shaft after forming is even, and the insulation level of the insulation main shaft is improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] The structure of the utility model will be explained in further detail below in combination with the drawings.

[0009] Figure 1 It is the structure schematic diagram of the line drawing device for the composite on-load tap-changer insulation main shaft pultrusion forming of the utility model.

[0010] Figure 2 It is the top view of the line drawing device for the composite on-load tap-changer insulation main shaft pultrusion forming of the utility model.

[0011] Figure 3 It is Figure 1 The sectional view along the direction of A-A.

[0012] Figure 4 It is the bottom view of the upper line drawing mechanism of the utility model.

[0013] Figure 5 It is the top view of the upper line drawing mechanism of the utility model.

[0014] Figure 6 It is the use state diagram of the line drawing device for the composite on-load tap-changer insulation main shaft pultrusion forming of the utility model.

[0015] As shown in the figure: 1-upper line drawing mechanism, 11-upper support plate, 12-upper bottom plate, 13-upper stress block, 14-upper stress plate, 15-upper compression screw, 2-lower line drawing mechanism, 21-lower support plate, 22-lower bottom plate, 23-lower stress block, 24-lower stress plate, 25-lower compression screw, 3-stress bolt, 4-glass fiber bundle. DETAILED DESCRIPTION

[0016] The following describes the embodiments of the present application by specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification. The described embodiments are only a part of the embodiments of the present application, but not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0017] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the present specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and the like in the present specification are only for easy understanding and clear description, and are not used to limit the scope of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the implementation scope of the present application.

[0018] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. It should be noted that the terms "include", "contain" or any other variant are intended to cover non-exclusive inclusion, so that the process, method, article or equipment containing a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Embodiment 1

[0019] As shown in Figures 1-5 The present embodiment provides a composite load tap changer insulation main shaft pultrusion forming pull wire device, which comprises an upper pull wire mechanism 1 and a lower pull wire mechanism 2. The upper pull wire mechanism 1 and the lower pull wire mechanism 2 are made of polyurethane material or stainless steel material.

[0020] The upper pull line mechanism 1 comprises an upper support plate 11, an upper bottom plate 12, upper stress blocks 13 and an upper stress plate 14, and forms a cuboid box structure with a closed bottom and periphery; the upper support plate 11 is arranged along the pull line direction, and the two upper support plates 11 are arranged in parallel; the upper bottom plate 12 is horizontally fixed at the bottom of the two upper support plates 11; the upper stress blocks 13 are a plurality of long strip plates fixed at the bottom of the upper bottom plate 12 and perpendicular to the pull line direction, and the whole is in the shape of a cuboid, and each upper stress block 13 is fixed at the bottom of the upper bottom plate 12 by a plurality of upper pressing screws 15; the upper stress plate 14 is two plates fixed at the front and rear sides of the upper support plate 11, and the bottoms of the two upper stress plates 14 are fixed at the front and rear ends of the upper bottom plate 12 respectively.

[0021] The lower pull line mechanism 2 is located directly below the upper pull line mechanism 1, and comprises a lower support plate 21, a lower bottom plate 22, lower stress blocks 23 and a lower stress plate 24, and forms a cuboid box structure with a closed top and periphery; the lower support plate 21 is arranged along the pull line direction, and the two lower support plates 21 are arranged in parallel; the lower bottom plate 22 is horizontally fixed at the top of the lower support plate 21 and located below the upper bottom plate 12 and the upper stress blocks 13; the lower stress blocks 23 are a plurality of long strip plates fixed at the top of the lower bottom plate 22 and perpendicular to the pull line direction, and the whole is in the shape of a cuboid, and the lower stress blocks 23 are located below the upper stress blocks 13 and arranged staggered with the upper stress blocks 13, and each lower stress block 23 is fixed at the top of the lower bottom plate 22 by a lower pressing screw 25; the lower stress plate 24 is two plates fixed at the front and rear sides of the lower support plate 21, and the tops of the two lower stress plates 24 are fixed at the front and rear ends of the lower bottom plate 22 respectively.

[0022] In use, the glass fiber bundle 4 drawn out of the pultrusion mold is placed between the two, the upper pull line mechanism 1 and the lower pull line mechanism 2 are folded up and down and placed between the clamping mechanism of the traction machine, the pull line mechanism 1 and the lower pull line mechanism 2 are pressed tightly, the lower stress blocks 23 and the upper stress blocks 13 are arranged staggered up and down to form a mutual engagement, the glass fiber bundle is uniformly pressed, and then the traction machine traction part is started, and the traction machine pulls the composite on-load tap changer insulating main shaft pultrusion pull line device to move and pull the glass fiber bundle 4 to move.

[0023] The traction machine is an existing device, mainly a caterpillar type pultrusion traction machine and a hydraulic type pultrusion traction machine.

[0024] The track type pultrusion traction machine is mainly divided into upper and lower tracks, and the upper track can move downward to clamp the glass fiber bundle 4. When the traction machine of the utility model is a track type pultrusion traction machine, the use steps of the pulling line device of the utility model are as follows: after the glass fiber bundle 4 is placed between the upper pulling line mechanism 1 and the lower pulling line mechanism 2, the upper pulling line mechanism 1 and the lower pulling line mechanism 2 are folded up and down and placed between the clamping mechanisms of the traction machine, the upper track moves downward to clamp the upper pulling line mechanism 1 and the lower pulling line mechanism 2 (that is, clamp the glass fiber bundle 4), and then the two tracks rotate (one rotates clockwise and the other rotates counterclockwise) to pull the pulling line device and the glass fiber bundle 4 to move along the pulling line direction.

[0025] The hydraulic type pultrusion traction machine mainly comprises a lower clamping plate, a traction hydraulic cylinder, a support, an upper clamping plate, a mounting plate and a clamping hydraulic cylinder. The lower clamping plate is slidably arranged on the support and can move back and forth horizontally. The traction hydraulic cylinder is fixed on the support and can drive the support platform to slide back and forth. The support is fixed on the top edge of the lower clamping plate. The mounting plate is installed on the support and located above the lower clamping plate. The upper clamping plate is arranged between the mounting plate and the lower clamping plate and can slide up and down. The upper clamping plate can move downward to clamp the glass fiber bundle 4 together with the lower clamping plate. The clamping hydraulic cylinder is fixed on the mounting plate, and the extension end of the clamping hydraulic cylinder is connected with the upper clamping plate and can drive the upper clamping plate to move up and down. When the traction machine of the utility model is a hydraulic type pultrusion traction machine, the use steps of the pulling line device of the utility model are as follows: after the glass fiber bundle 4 is placed between the upper pulling line mechanism 1 and the lower pulling line mechanism 2, the upper pulling line mechanism 1 and the lower pulling line mechanism 2 are folded up and down and placed between the lower clamping plate and the upper clamping plate of the traction machine. The clamping hydraulic cylinder is started to push the upper clamping plate to move downward, clamp the upper pulling line mechanism 1 and the lower pulling line mechanism 2 (that is, clamp the glass fiber bundle 4), and then the traction hydraulic cylinder operates to pull the pulling line device and the glass fiber bundle 4 to move along the pulling line direction. Embodiment 2

[0026] In order to further improve the structural strength of the upper pulling line mechanism 1, the embodiment is set as follows on the basis of the embodiment 1:

[0027] At least two force receiving pins 3 are further connected between the two upper support plates 11. The force receiving pins 3 can also be arranged between the two lower support plates 21. Furthermore, a plurality of partition plates can be arranged between the two upper support plates 11 and the two lower support plates 21 respectively to enhance the structural strength. Embodiment 3

[0028] In order to ensure that the clamping mechanism of the traction machine can more stably clamp the upper pulling line mechanism 1 and the lower pulling line mechanism 2, the embodiment is set as follows on the basis of the embodiment 1 or the embodiment 2: the top of the upper support plate 11 is recessed downward to form a groove-shaped structure. For example, Figure 6As shown, when the clamping mechanism of the traction machine clamps the upper cable pulling mechanism 1 and the lower cable pulling mechanism, it can be engaged in the groove, stably pressing the upper cable pulling mechanism 1 downward and evenly pressing the fiberglass bundle 4 onto the lower cable pulling mechanism 2.

[0029] Other aspects of this utility model that are not detailed herein are all conventional techniques known to those skilled in the art.

[0030] It should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The scope of protection of this utility model is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A wire drawing device for pultruding the insulating spindle of a composite on-load tap changer, characterized in that: Includes an upper pull-up mechanism and a lower pull-up mechanism; The upper pull-line mechanism includes an upper support plate, an upper base plate, and an upper force-bearing block; the upper support plate is arranged along the pull-line direction; the upper base plate is horizontally fixed to the bottom of the upper support plate; the upper force-bearing block consists of multiple long strip plates fixed to the bottom of the upper base plate and perpendicular to the pull-line direction; The lower pull-line mechanism is located directly below the upper pull-line mechanism, and includes a lower support plate, a lower base plate, and a lower force-bearing block; the lower support plate is arranged along the pull-line direction; the lower base plate is horizontally fixed to the top of the lower support plate and located below the upper base plate and the upper force-bearing block; the lower force-bearing block is a plurality of long strip plates fixed to the top of the lower base plate and perpendicular to the pull-line direction, and the lower force-bearing block is located below the upper force-bearing block and is staggered with the upper force-bearing block.

2. The wire drawing device for pultrusion molding of the insulating spindle of the composite on-load tap changer according to claim 1, characterized in that: The number of upper support plates is two and they are parallel to each other; similarly, the number of lower support plates is also two and they are parallel to each other.

3. The wire drawing device for pultrusion molding of the insulating spindle of the composite on-load tap changer according to claim 1, characterized in that: At least two load-bearing pins are also connected between the two upper support plates.

4. The wire drawing device for pultrusion molding of the insulating spindle of the composite on-load tap changer according to claim 1, characterized in that: The upper pull-line mechanism also includes an upper force plate, which consists of two plates and is fixed to the front and rear sides of the upper support plate respectively. The bottoms of the two upper force plates are fixed to the front and rear ends of the upper base plate respectively.

5. The wire drawing device for pultrusion molding of the insulating spindle of the composite on-load tap changer according to claim 1, characterized in that: The pull-down cable mechanism also includes a lower force plate; there are two lower force plates, which are fixed on the front and rear sides of the lower support plate respectively, and the tops of the two lower force plates are fixed on the front and rear ends of the lower base plate respectively.

6. The wire drawing device for pultrusion molding of the insulating spindle of a composite on-load tap changer according to any one of claims 1-5, characterized in that: Both the upper and lower force-bearing blocks are rectangular parallelepiped structures.

7. The wire drawing device for pultrusion molding of the insulating spindle of a composite on-load tap changer according to any one of claims 1-5, characterized in that: The upper and lower cable mechanisms are made of polyurethane or stainless steel.

8. The wire drawing device for pultrusion molding of the insulating spindle of a composite on-load tap changer according to any one of claims 1-5, characterized in that: The top of the upper support plate is recessed downward to form a groove-like structure.

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