阅读说明：本技术 一种阶梯型线盘支撑结构及线盘支撑方法 (Stepped wire coil supporting structure and wire coil supporting method ) 是由 左劲松 张涛 杨书锋 张石磊 张佳良 刘空军 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种阶梯型线盘支撑结构及线盘支撑方法,其中阶梯型线盘支撑结构,包括放线杠和导线盘,放线杠由导线盘中间孔穿过,导线盘的轴向两端对称设有阶梯型线盘支撑套,阶梯型线盘支撑套套设在放线杠上,并在阶梯型线盘支撑套外侧通过卡子固定；阶梯型线盘支撑套上设有具有高度差的多级阶梯,阶梯型线盘支撑套通过与导线盘中间孔径适配的阶梯伸入至导线盘中间孔。采用本发明,阶梯式线盘支撑套在使用过程中只受径向力作用,使系统稳定性更强,不会出现支撑套变形卡死的情况,有效避免展放导线过程中,导线盘松动后造成上下震动,放线杠断裂情况的发生,提高了导线展放中的安全性。(The invention discloses a stepped wire coil supporting structure and a wire coil supporting method, wherein the stepped wire coil supporting structure comprises a wire releasing rod and a wire coil, the wire releasing rod penetrates through a middle hole of the wire coil, stepped wire coil supporting sleeves are symmetrically arranged at two axial ends of the wire coil, the stepped wire coil supporting sleeves are sleeved on the wire releasing rod and are fixed outside the stepped wire coil supporting sleeves through clips; the stepped wire coil support sleeve is provided with a multistage step with a height difference, and the stepped wire coil support sleeve extends into the middle hole of the wire coil through the step matched with the middle hole diameter of the wire coil. By adopting the invention, the stepped wire coil support sleeve is only acted by radial force in the use process, so that the system stability is stronger, the situation that the support sleeve is deformed and clamped can not occur, the vertical vibration and the breakage of the pay-off bar caused by the looseness of the wire coil in the wire unfolding process can be effectively avoided, and the safety in the wire unfolding process is improved.)

1. The utility model provides a notch cuttype drum bearing structure, includes unwrapping wire thick stick and wire coil, and the hole passes its characterized in that in the middle of the unwrapping wire thick stick is coiled by the wire: stepped wire coil support sleeves are symmetrically arranged at two axial ends of the wire coil, are sleeved on the pay-off bar and are fixed outside the stepped wire coil support sleeves through clips;

the stepped wire coil support sleeve is provided with a multistage step with a height difference, and the stepped wire coil support sleeve extends into the middle hole of the wire coil through the step matched with the middle hole diameter of the wire coil.

2. A stepped wire coil support structure according to claim 1, wherein: the stepped wire coil support sleeve is divided into at least five steps.

3. A stepped wire coil support structure according to claim 2, wherein: the step height difference on the stepped wire coil support sleeve is 5 mm.

4. A stepped wire coil support structure according to any one of claims 1 to 3, wherein: and two ends of the pay-off bar are supported by a wire pay-off rack.

5. A wire coil supporting method using the stepped wire coil supporting structure of any one of claims 1 to 3, characterized by comprising the steps of:

(1) selecting a step-shaped wire coil support sleeve with a proper specification according to the construction requirement of the lead;

(2) hoisting the wire disc by a crane, and enabling the middle of the wire disc to penetrate through the pay-off bar;

(3) and (3) filling gaps at two ends of the wire coil by using the stepped wire coil support sleeve, so that the stepped wire coil support sleeve extends into the middle hole of the wire coil through a step matched with the middle hole diameter of the wire coil, and finally fixing the stepped wire coil support sleeve by using a clamp.

6. The wire coil support method according to claim 5, wherein: cascaded drum supports cover and divide into four kinds of specifications to satisfy the construction demand of each model wire, specifically as follows:

the first type is a stepped wire coil support sleeve with the outer diameter of 70-90mm, is suitable for the type of a wire with the diameter of less than 400mm and is suitable for the type of a pay-off rack of 5 tons;

the second type is a stepped wire coil support sleeve with the outer diameter of 90-110mm, and is suitable for the type of a 400mm wire and the type of an 8-ton pay-off rack;

the third is a stepped wire coil support sleeve with the outer diameter of 105 and 125mm, which is suitable for the wire model of 630mm and the pay-off rack model of 10 tons;

the fourth step type wire coil support sleeve with the outer diameter of 115-135mm is suitable for the type of a lead wire with the diameter of less than 900mm and the type of a pay-off rack with the diameter of 15 tons.

Technical Field

The invention relates to the technical field of tension paying-off construction of power transmission and transformation projects, in particular to a stepped wire coil supporting structure and a wire coil supporting method.

Background

In the tension paying-off construction of the power transmission and transformation project, a wire coil needs to be supported by a wire pay-off rack for use, the wire coil is connected with the wire pay-off rack through a pay-off bar, and then a gap is filled by a support sleeve. Because the aperture of the wire coil is not in a uniform industrial standard, the gap between the aperture of the wire coil and the pay-off bar is uncertain, and the traditional process uses a conical support sleeve for fixedly clamping the connection between the wire coil and the pay-off bar. Specifically, the wire coil is connected with the pay-off bar through a conical wire coil support sleeve, and the outer side of the conical wire coil support sleeve is fixed by a clamp.

As shown in fig. 1, a schematic view of a tapered wire coil support sleeve. Fig. 2 is a schematic view of a wire coil installation based on a tapered wire coil support sleeve. Because the outer surface of the conical wire coil supporting sleeve is an inclined plane, and the inner surface of the shaft hole of the wire coil is a plane, the supporting sleeve and the wire coil act to generate radial and axial component forces. Along with the rotation of the wire coil when the wire is unfolded and released, the conical wire coil support sleeve is simultaneously acted by axial force and radial force. Under the action of axial force, a fixing clip is easy to loosen in the operation of a wire coil, the conical wire coil supporting sleeve is fixed and loosened due to the long-time rotating axial force, the gap of the whole system is enlarged after loosening, the wire coil rotates along with the impact of continuous vibration from top to bottom to cause the bending deformation and even breakage of the pay-off bar, the stability and the safety are reduced, and the wire coil is a great potential safety hazard.

Meanwhile, the contact area of the conical wire coil support sleeve and the wire coil is small, the contact surface is prone to deformation after long-time stress, the pay-off rack and the wire coil are clamped, the empty wire coil can be removed only destructively, and normal construction progress is delayed.

Disclosure of Invention

The invention aims to provide a stepped wire coil supporting structure and a wire coil supporting method.

In order to solve the technical problems, the invention adopts the following technical scheme:

a stepped wire coil supporting structure comprises a wire releasing rod and a wire coil, wherein the wire releasing rod penetrates through a middle hole of the wire coil, stepped wire coil supporting sleeves are symmetrically arranged at two axial ends of the wire coil, and are sleeved on the wire releasing rod and fixed outside the stepped wire coil supporting sleeves through clips;

the stepped wire coil support sleeve is provided with a multistage step with a height difference, and the stepped wire coil support sleeve extends into the middle hole of the wire coil through the step matched with the middle hole diameter of the wire coil.

The stepped wire coil support sleeve is divided into at least five steps.

The step height difference on the stepped wire coil support sleeve is 5 mm.

And two ends of the pay-off bar are supported by a wire pay-off rack.

The invention discloses a wire coil supporting method, which uses the step-type wire coil supporting structure and comprises the following steps:

(1) selecting a step-shaped wire coil support sleeve with a proper specification according to the construction requirement of the lead;

(2) hoisting the wire disc by a crane, and enabling the middle of the wire disc to penetrate through the pay-off bar;

(3) and (3) filling gaps at two ends of the wire coil by using the stepped wire coil support sleeve, so that the stepped wire coil support sleeve extends into the middle hole of the wire coil through a step matched with the middle hole diameter of the wire coil, and finally fixing the stepped wire coil support sleeve by using a clamp.

Cascaded drum supports cover and divide into four kinds of specifications to satisfy the construction demand of each model wire, specifically as follows:

the first type is a stepped wire coil support sleeve with the outer diameter of 70-90mm, is suitable for the type of a wire with the diameter of less than 400mm and is suitable for the type of a pay-off rack of 5 tons;

the second type is a stepped wire coil support sleeve with the outer diameter of 90-110mm, and is suitable for the type of a 400mm wire and the type of an 8-ton pay-off rack;

the third is a stepped wire coil support sleeve with the outer diameter of 105 and 125mm, which is suitable for the wire model of 630mm and the pay-off rack model of 10 tons;

the fourth step type wire coil support sleeve with the outer diameter of 115-135mm is suitable for the type of a lead wire with the diameter of less than 900mm and the type of a pay-off rack with the diameter of 15 tons.

The invention has the beneficial effects that:

by adopting the invention, the stepped wire coil support sleeve is only acted by radial force in the use process, so that the system stability is stronger, the situation that the support sleeve is deformed and clamped can not occur, the vertical vibration and the breakage of the pay-off bar caused by the looseness of the wire coil in the wire unfolding process can be effectively avoided, and the safety in the wire unfolding process is improved.

The invention improves the connection stability of the support sleeve, prevents the system from loosening, avoids the defect that the support sleeve is easy to deform and clamp due to a reasonable stress structure, and ensures the safe development of engineering.

Drawings

FIG. 1 is a schematic view of a prior art tapered wire coil support sleeve;

FIG. 2 is a schematic view of a prior art wire spool mounting based on a tapered spool support sleeve;

FIG. 3 is a schematic view of the stepped wire coil support sleeve of the present invention;

FIG. 4 is a left side view of FIG. 3;

fig. 5 is a schematic diagram of the installation of a wire coil based on a stepped wire coil support sleeve.

Description of the preferred embodiments

The following detailed description of embodiments of the invention refers to the accompanying drawings.

As shown in fig. 3 to 5, the stepped wire coil supporting structure of the invention comprises a wire releasing rod 1 and a wire coil 2, wherein the wire releasing rod 1 passes through a middle hole of the wire coil 2, stepped wire coil supporting sleeves 3 are symmetrically arranged at two axial ends of the wire coil 2, and the stepped wire coil supporting sleeves 3 are sleeved on the wire releasing rod 1 and are fixed outside the stepped wire coil supporting sleeves 3 through clips.

The stepped wire coil support sleeve 3 is provided with a multistage step with height difference, and the stepped wire coil support sleeve 3 extends into the middle hole of the wire coil 2 through the step matched with the middle hole diameter of the wire coil.

In this embodiment, the step height difference on the notch cuttype drum support cover is 5mm, divides into five grades of steps altogether.

In this embodiment, the two ends of the pay-off bar 1 are supported by the wire pay-off rack 4.

The embodiment also discloses a wire coil supporting method, which uses the step-type wire coil supporting structure and comprises the following steps:

(1) selecting a step-shaped wire coil support sleeve 3 with a proper specification according to the construction requirement of the lead;

(2) hoisting the wire coil 2 by a crane, and enabling the middle of the wire coil to penetrate through the pay-off bar 1;

(3) the gaps are filled at the two ends of the wire disc 2 by using the stepped wire disc support sleeve 3, so that the stepped wire disc support sleeve 3 extends into the middle hole of the wire disc 2 through a step matched with the middle hole diameter of the wire disc, and finally the stepped wire disc support sleeve is fixed by using a clamp.

Aperture does not have standard specification in the middle of the wire coil of production on the existing market, and the cascaded structure of notch cuttype drum support cover can be adjusted according to the size in actual drum aperture, satisfies the installation demand. The notch cuttype drum supports the cover and divide into four kinds of specifications, can satisfy the construction demand of each model wire, corresponds as shown in the following table:

pay off rack model	5 ton of	8 ton of	10 ton of	15 ton of
					Suitable for the type of the lead	400mm toLower part	400mm	630mm	Over 900mm
Application range of stepped wire coil support sleeve	70-90mm outer diameter	90-110mm external diameter	105-125mm outer diameter	115-mm outer diameter

According to the invention, the stepped wire coil support sleeve can be matched with a pay-off rack according to the type of a lead, and the connection gap is within 5 mm.

By adopting the invention, the stepped wire coil support sleeve is only acted by radial force in the use process, so that the system stability is stronger, the situation that the support sleeve is deformed and clamped can not occur, the vertical vibration and the breakage of the pay-off bar caused by the looseness of the wire coil in the wire unfolding process can be effectively avoided, and the safety in the wire unfolding process is improved.

The invention improves the connection stability of the support sleeve, prevents the system from loosening, avoids the defect that the support sleeve is easy to deform and clamp due to a reasonable stress structure, and ensures the safe development of engineering.

Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.