CN201717065U

CN201717065U - Roof composite insulator for high-speed rail electric locomotive

Info

Publication number: CN201717065U
Application number: CN2010202074191U
Authority: CN
Inventors: 陈子岩; 朱斌; 魏劲容
Original assignee: China XD Electric Co Ltd
Current assignee: China XD Electric Co Ltd
Priority date: 2010-05-28
Filing date: 2010-05-28
Publication date: 2011-01-19
Anticipated expiration: 2020-05-28

Abstract

The utility model discloses a roof composite insulator for a high-speed rail electric locomotive. The roof composite insulator comprises a core body (1) with an elliptical cross section, a silicon rubber umbrella skirt (2) which is adhered outside the core body (1) and has an elliptical horizontal projection, and metal fittings arranged at the two ends of the core body (1). The roof composite insulator is characterized in that reinforcing ribs with gradual changing widths from the core body (1) as the center to the edges are arranged on the lower surface of the silicon rubber umbrella skirt (2) having the elliptical horizontal projection in the long axis direction and the minor axis direction. The roof composite insulator has the advantages of good mechanical performance such as bending resistance, compression resistance, and the like, scientific and reasonable mechanical structure, and full utilization of materials.

Description

The electrified locomotive roof composite insulator of a kind of high speed rail

Technical field

The utility model relates to a kind of high voltage post insulator, the electrified locomotive roof composite insulator of particularly a kind of high speed rail.

Background technology

Along with the development of modern railways electric locomotive towards high-speed operation, the speed of railway electric locomotive is more and more faster, and windage is also bigger, and traditional railway electric locomotive roof is more and more inapplicable with composite insulator mechanical strength and insulating reliability technology.In recent years domestic the composite insulators that a lot of improvement electric locomotive roofs are used also appear in succession, as adopt the full skirt of floor projection ovalize and reinforcement is set at the full skirt lower surface, but known reinforcement is wide design, has not science of mechanical structure, the inadequate shortcoming of material use.

Summary of the invention

The purpose of this utility model provides the electrified locomotive roof composite insulator of a kind of high speed rail, being provided with by core body at the full skirt lower surface is the middle mind-set edge thickness reinforcement of attenuate gradually, make it have good bending resistance, resistance to compression, etc. mechanical performance, mechanical structure science, material use fully wait characteristics.

The technical solution of the utility model is: the electrified locomotive roof composite insulator of a kind of high speed rail, comprise that cross section is oval-shaped core body, and be bonded in outside the core body, floor projection ovalize and its oval length axis respectively with the silicon rubber full skirt of the oval length dead in line of core body, be provided with metal-ware at the core body two ends, it is characterized in that: being provided with by core body at described floor projection ovalize silicon rubber full skirt along the lower surface of long axis direction or short-axis direction is the width reinforcement decrescence that middle mind-set edge extends, or to be equipped with by core body at described floor projection ovalize silicon rubber full skirt along the lower surface of long axis direction and short-axis direction be the width reinforcement decrescence that middle mind-set edge extends.

Described reinforcement is that the center is symmetrically distributed each other along its major axis or short-axis direction with oval core body.

Described reinforcement structure triangular in shape, these leg-of-mutton both sides are located at the silicon rubber full skirt respectively along on the core body sidewall between long axis direction or short-axis direction lower surface and the adjacent two silicon rubber full skirts, and the triangle that the support arm that links to each other with these both sides and these both sides are surrounded constitutes reinforcement; The angle of described support arm and horizontal plane is 0 °～15 °.

The reinforcement muscle at described oval silicon rubber full skirt edge is wide to be 2～20mm.

The angle that male cone (strobilus masculinus) that described width reinforcement decrescence forms and oval silicon rubber full skirt axis are constituted is θ, and 0 °＜θ≤15 °.

Described reinforcement and silicon rubber full skirt are structure as a whole.The utility model has the advantages that: the electrified locomotive of this high speed rail is silicon rubber full skirt lower surface with the roof composite insulator in floor projection, and to be provided with by core body be the reinforcement that middle mind-set border width reduces gradually, therefore, this composite insulator have good bending resistance, resistance to compression, etc. mechanical performance; Its mechanical structure science, material use is abundant; Reinforcement is phased down by middle mind-set border width and it is had necessarily move back the mould tapering, be beneficial on manufacturing process and move back mould; And the improvement that its reinforcement that has tapering is made on the basis of original structure more helps composite insulator and is improved at the mechanical strength and the insulating reliability of electric locomotive roof.

Description of drawings

Fig. 1 is the utility model structural representation; Fig. 2 is the utility model is provided with reinforcement along long axis direction a elevational schematic view; Fig. 3 is the utility model is provided with reinforcement along short-axis direction a elevational schematic view; Fig. 4 is the utility model all is provided with reinforcement along major axis and short-axis direction a elevational schematic view.

Among the figure: 1, core body; 2, silicon rubber full skirt; 3, reinforcement.

Embodiment

The utility model is described in further detail below in conjunction with the embodiment accompanying drawing.Need to prove that following embodiment only limits to explanation of the present utility model, but not as to qualification of the present utility model.The increase of every structure of making on the basis of this programme or with the replacement of same content all should belong to protection range of the present utility model.The structure that is not described in detail in an embodiment, its structure is identical with existing known structure.

Embodiment 1: as depicted in figs. 1 and 2, the electrified locomotive roof composite insulator of this high speed rail, core body 1 adopts epoxy glass fiber rod or glass fibre and other fibre epoxy resin-impregnated winding pipe (blanketing gas or solid dielectric insulation in the pipe), cross section is oval, core body 1 two ends are provided with metal-ware, outside core body 1, be bonded with silicon rubber full skirt 2 with core body 1 integrative-structure, silicon rubber full skirt 2 floor projection ovalizes and core body 1 and silicon rubber full skirt 2 major axis, the minor axis projection overlaps, be provided with the width reinforcement 3 decrescence that is extended for middle mind-set edge by core body 1 at silicon rubber full skirt 2 lower surfaces along major axis, this reinforcement 3 is an axial symmetry with core body 1.

Reinforcement 3 structures triangular in shape, these leg-of-mutton both sides are located at silicon rubber full skirt 2 respectively along on core body 1 sidewall between long axis direction lower surface and the adjacent two silicon rubber full skirts 2, and the triangle that the support arm that links to each other with these both sides and these both sides are surrounded constitutes reinforcement 3; The optimum angle α of this support arm and horizontal plane is 0 °.

Wherein the angle α of support arm and level is except that being can also be 0 °～15 ° any angles in the scope 0 °, reinforcement 3 muscle at oval silicon rubber full skirt 2 edges are wide to be 15mm, wherein, reinforcement 3 muscle at oval silicon rubber full skirt 2 edges are wide can also be arbitrary value in 2～20mm scope except that 15mm.The male cone (strobilus masculinus) that this width reinforcement 3 decrescence forms is θ (seeing shown in Figure 2) with the angle that oval silicon rubber full skirt 2 axis are constituted, and θ is 7.5 °, and the θ angle can also be the interior any angle of 0 °＜θ≤15 ° scope.Silicon rubber full skirt 2 and reinforcement 3 are integral structures, adopt general injection mold pressing one-shot forming technique.

It is applicable to the electric locomotive of the open area operation in Plain, has prevented under the high-speed cruising of railway electric locomotive, and silicon rubber full skirt 2 has been avoided faults such as pollution flashover along long axis direction collapse limit and the fatigue break of full skirt root, has guaranteed the safe operation of electric locomotive.

Embodiment 2 embodiment 2 and embodiment 1 are basic identical, institute's difference is: as shown in Figure 3, it is to be provided with the width reinforcement 3 decrescence that is extended for middle mind-set edge by core body 1 along minor axis at silicon rubber full skirt 2 lower surfaces, this reinforcement 3 is an axial symmetry with core body 1, and described reinforcement 3 profiles are triangular in shape.

Reinforcement 3 sides structure triangular in shape, these leg-of-mutton both sides are located at silicon rubber full skirt 2 respectively along on core body 1 sidewall between long axis direction lower surface and the adjacent two silicon rubber full skirts 2, and the triangle that the support arm that links to each other with these both sides and these both sides are surrounded constitutes reinforcement 3; The optimum angle α of this support arm and horizontal plane is 0 °.

Wherein the angle of support arm and level is except that being can also be 0 °～15 ° any angles in the scope 0 °, reinforcement 3 muscle at oval silicon rubber full skirt 2 edges are wide to be 15mm, and reinforcement 3 muscle at wherein oval silicon rubber full skirt 2 edges are wide can also to be arbitrary value in 2～20mm scope except that 15mm; The male cone (strobilus masculinus) that this width reinforcement 3 decrescence forms is θ with the angle that oval silicon rubber full skirt 2 axis are constituted, and θ is 7.5 °, and the θ angle can also be the interior any angle of 0 °＜θ≤15 ° scope.

Present embodiment is applicable to have at the long journey section that there is local wind-force booster action in (as mountain pass, mountain area) under the situation of complex-terrain landforms, the blast that is produced acts on the pressure that the insulator side produces short-axis direction, prevented under the high-speed cruising of railway electric locomotive, silicon rubber full skirt 2 is along short-axis direction collapse limit and the fatigue break of full skirt root, avoid faults such as pollution flashover, guaranteed the safe operation of electric locomotive.

Embodiment 3 embodiment 3 and

embodiment

1,2 are basic identical, institute's difference is: as shown in Figure 4, it is equipped with by width decrescence the reinforcement 3 of core body 1 for the extension of middle mind-set edge at the lower surface of described floor projection ovalize silicon rubber full skirt 2 along long axis direction and short-axis direction.

It is applicable at the electric locomotive of the open area operation in Plain and long journey section has under the situation of complex-terrain landforms (as mountain pass, mountain area), prevented under the high-speed cruising of railway electric locomotive, silicon rubber full skirt 2 collapse limit and the fatigue break of full skirt root, avoid faults such as pollution flashover, guaranteed the safe operation of electric locomotive.

Reinforcement in the utility model is not limited to the form in the foregoing description, it can also be asymmetric, the profile of reinforcement 3 can also be other shape, silicon rubber full skirt and reinforcement 3 can also be split-type structurals, can also adopt bonding way that reinforcement 3 both sides are bonded on the lower surface and core body 1 of silicon rubber full skirt simultaneously.

During installation, silicon rubber full skirt 2 is the direction of motion of electric locomotive along long axis direction.The utility model is applicable to electric equipment and buses such as the pantograph, high voltage isolator, high pressure coupling of high-speed railway electric locomotive roof, is used for insulation and supports and mechanical fixation.

The utility model by be in floor projection silicon rubber full skirt lower surface be provided with by core bar centered by to the edge thickness reinforcement of attenuate gradually, make it have good bending resistance, resistance to compression, etc. mechanical performance; The mechanical structure science, material use is abundant; Reinforcement is subtracted gradually by middle mind-set border width makes it with necessarily moving back the mould tapering, is beneficial in manufacturing process and moves back mould; The characteristics such as aesthetic property improves to some extent.

Claims

1. the electrified locomotive roof composite insulator of a high speed rail, comprise that cross section is oval-shaped core body (1), and be bonded in outside the core body (1), floor projection ovalize and its oval length axis respectively with the silicon rubber full skirt (2) of the oval length dead in line of core body (1), be provided with metal-ware at core body (1) two ends, it is characterized in that: be provided with by width decrescence the reinforcement (3) of core body (1) at the lower surface of described floor projection ovalize silicon rubber full skirt (2), or be equipped with by width decrescence the reinforcement (3) of core body (1) for the extension of middle mind-set edge at the lower surface of described floor projection ovalize silicon rubber full skirt (2) along long axis direction and short-axis direction for the extension of middle mind-set edge along long axis direction or short-axis direction.

2. the electrified locomotive roof composite insulator of a kind of high speed rail according to claim 1, it is characterized in that: described reinforcement (3) is that the center is symmetrically distributed each other along its major axis or short-axis direction with oval core body (1).

3. the electrified locomotive roof composite insulator of a kind of high speed rail according to claim 1, it is characterized in that: described reinforcement (3) structure triangular in shape, these leg-of-mutton both sides are located at silicon rubber full skirt (2) respectively along on core body (1) sidewall between long axis direction or short-axis direction lower surface and the adjacent two silicon rubber full skirts (2), and the triangle that the support arm that links to each other with these both sides and these both sides are surrounded constitutes reinforcement; The angle of described support arm and horizontal plane is 0 °～15 °.

4. the electrified locomotive roof composite insulator of a kind of high speed rail according to claim 1 is characterized in that: the wide 2～20mm. of being of reinforcement (3) muscle at described oval silicon rubber full skirt (2) edge.

5. the electrified locomotive roof composite insulator of a kind of high speed rail according to claim 1, it is characterized in that: male cone (strobilus masculinus) and oval silicon rubber full skirt (2) angle that axis constituted that described width reinforcement (3) decrescence forms are θ, and 0 °＜θ≤15 °.

6. the electrified locomotive roof composite insulator of a kind of high speed rail according to claim 1, it is characterized in that: described reinforcement (3) and silicon rubber full skirt (2) are structure as a whole.