CN107346873A - A kind of New insulated crossing frame - Google Patents

Abstract

The invention discloses a novel insulating spanning frame, which includes: 4 bases, 4 lifting adjustment bases, 4 pillars, 4 connecting members, 4 insulating supports, 4 beams, and 1 insulating spanning net The lower end of the lifting adjustment base is connected to the base, the upper end of the lifting adjustment base is connected to the lower end of the pillar, the upper end of the pillar is connected to the connecting member, the lower end of the insulating support is connected to the connecting member, the upper end of the insulating support is connected to the insulating spanning net, and the two adjacent connecting members There are crossbeams connected between them, and the spanned lines pass between the insulating supports, which solves the problems existing in the existing power outage spanning, erecting steel spanning frames, and spanning nets, and realizes the installation of the new insulating spanning frame is simple, safe and fast, and can The technical effect of adjusting the height of the pillar according to the site terrain.

Description

A new type of insulation spanning frame

technical field

The invention relates to the field of railway catenary detection, in particular to a novel insulating spanning frame.

Background technique

With the rapid development of my country's economy and the increasing demand for electric energy, the construction of transmission lines often crosses the existing transmission lines. With the improvement of people's living standards, people's tolerance for power outages continues to decrease. Therefore, when the construction of the transmission line crosses the existing line, the power outage will be greatly reduced, and the live crossing will become the norm. The traditional spanning construction methods of transmission lines mainly include power failure spanning, erecting steel spanning frames, and erecting spanning grids. Outage spanning can no longer meet the increasingly stringent requirements for outage management. The method of erecting a steel spanning frame has disadvantages such as heavy workload, high safety risks, and the need for power outages during the erection and removal of the spanning frame. The spanning network has high requirements on the terrain at the cross-domain and the towers at both ends, and has great limitations. Therefore, it is particularly necessary to innovate a new spanning construction tool to realize the spanning construction without power supply throughout the whole process.

Contents of the invention

The invention provides a new type of insulating spanning frame, which solves the problems existing in the existing power failure spanning, erecting of steel spanning frames, and spanning nets, and realizes that the new type of insulating spanning frame is easy to install, safe and fast, and can adjust the pillars according to the site terrain High technical effect.

In order to achieve the purpose of the above invention, the application provides a new type of insulating spanning frame, which includes:

4 bases, 4 lifting adjustment bases, 4 pillars, 4 connecting members, 4 insulating supports, 4 beams, and 1 insulating spanning net; the lower end of the lifting adjustment base is connected to the base, and the upper end of the lifting adjustment base is connected to the lower end of the pillar , the upper end of the pillar is connected to the connecting member, the lower end of the insulating support is connected to the connecting member, the upper end of the insulating support is connected to the insulating spanning net, a beam is connected between two adjacent connecting members, and the spanning line passes between the insulating supports.

Further, the lifting adjustment base, pillars, connecting members, and beams are all made of aluminum alloy.

Further, the base is a hinged base.

Further, the pillars are lattice-type pillars, the beams are lattice-type beams, and the adjustment base is a lattice-type adjustment base.

Further, the insulating bracket is an epoxy resin insulating bracket.

Further, the connection member is a three-prong connection member.

Further, the insulating spanning net is fixed on the insulating support through the Dyneema tension rope, and the insulating support is fixed with a wind rope ring and an insulating block, and the insulating wind rope passes through the wind rope ring.

Further, the insulating support includes: 4 insulating tubes, a plurality of epoxy resin partitions, a first connecting plate, and a second connecting plate, and the two ends of the 4 insulating tubes pass through the epoxy resin partitions and respectively connect with the first The connecting plate is connected with the second connecting plate, the first connecting plate is provided with the eyelet connected with the connecting member, the second connecting plate is provided with the pulley hanging point and the wind rope eye, and the pedals are connected between the insulating pipes.

Further, the connecting member is provided with an insulating pipe fixing eye, a rib connected with the first connecting plate, and a beam fixing hole.

One or more technical solutions provided by this application have at least the following technical effects or advantages:

1. When the spanning frame is erected close to the live line, the traditional steel spanning frame is made of steel pipe, which is a conductor, and there is a risk of electric shock. The spanning frame is made of epoxy resin, and the spanning net is made of synthetic materials, which avoids the risk of electric shock.

2. The spanning frame adopts a complete set of combined structure, and the weight is greatly reduced compared with the traditional spanning frame, which greatly reduces the amount of construction.

3. When erecting and dismantling the spanning frame, only 2 people are required to carry out high-altitude operations. Compared with the traditional spanning frame erection work, the amount of high-altitude operations is greatly reduced, and construction safety risks are reduced.

Description of drawings

The drawings described here are used to provide a further understanding of the embodiments of the present invention, constitute a part of the application, and do not constitute a limitation to the embodiments of the present invention;

Fig. 1 is the structural representation of novel insulation spanning frame among the present application;

Fig. 2 is the structural representation of insulating support in the present application;

Fig. 3 is the structural representation of connecting member in the present application;

Among them, 1-lifting adjustment base, 2-pillar, 3-connecting member, 4-insulating bracket, 5-beam, 6-insulating spanning net, 7-dyneema tension rope, 8-insulated wind rope, 9-base, 10- wind rope ring, 11- insulating tackle, 12- tackle hanging point and wind rope eye, 13- second connecting plate, 14- epoxy resin partition, 15- insulating pipe, 16- pedal, 17- connecting member Connected rib eye, 18-the first connecting plate, 19-connected with the first connecting plate, 20-insulating tube fixing eye.

detailed description

The invention provides a new type of insulating spanning frame, which solves the problems existing in the existing power failure spanning, erecting of steel spanning frames, and spanning nets, and realizes that the new type of insulating spanning frame is easy to install, safe and fast, and can adjust the pillars according to the site terrain High technical effect.

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope of this description. Therefore, the protection scope of the present invention is not limited by the following disclosure. limitations of specific examples.

Please refer to Fig. 1-Fig. 3. The insulating spanning frame of this application is composed of lattice-type aluminum alloy pillars, aluminum alloy lattice-type beams, aluminum alloy lattice-type adjusting bases, lattice-type combined insulating pillars, and spanning nets. Build the foundation of aluminum alloy parts under the spanned line, install combined insulating pillars on both sides of the spanned line, and then spread the spanning net on the insulating pillars. The installation is simple, safe and fast, and the height of the pillars can be adjusted according to the site terrain, effectively The above-mentioned deficiencies and shortcomings are solved.

The main content of this application research is how to solve the problem of how to ensure that the entire process does not need to cut off the power of the crossed line during the construction of the crossed live line. At the same time, it ensures the simplicity and safety of spanning construction.

The insulating span frame of the present application adopts a structure in which segmented aluminum alloy lattice pillars are combined with epoxy resin brackets. The segmented aluminum alloy lattice pillars are 3 meters per section, and 4 adjustable lattice aluminum alloy adjustment bases are installed under the wires that need to be erected to span the frame. Set up the corresponding height (to ensure a safe distance from the electrified body) and then install lattice-type aluminum alloy beam supports between the four pillars, and then install epoxy resin brackets on the four pillars to ensure the distance between the epoxy resin bracket and the wire. The distance, fasten the wind ropes in all directions, lay the spanning net, and complete the erection of the spanning frame.

Key components that need to be resolved throughout the spanning bracket;

Adjustable struts (to adjust to terrain features beneath the crossed transmission lines);

Hinged base (easy to set up and lay down without shifting);

The trident connecting member between the aluminum alloy lattice pillars (not only to ensure the connection of the upper and lower pillars, but also to ensure the connection between the beam supports and to be able to connect multiple combined spanning frames);

The connection between the aluminum alloy lattice pillar and the epoxy resin bracket (to ensure the stability of the connection point);

Epoxy resin support with insulation capability (guarantee the safe and effective distance around the wire being spanned, the physical and mechanical performance of the support, electrical performance, especially the kiss density between insulating materials);

The overall span frame bears a load of 30KN, the electrical performance of the insulating pillars, the power frequency withstand voltage is 480kV/3min, the leakage current is not more than 300 microamps when exposed to rain, and the power frequency withstand voltage is not less than 60kV when it is wet for 0.5 meters.

While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.

Claims (9)

1. A novel insulating spanning frame, characterized in that, said spanning frame comprises: 4 bases, 4 lifting adjustment bases, 4 pillars, 4 connecting members, 4 insulating supports, 4 beams, and 1 insulating spanning net; the lower end of the lifting adjustment base is connected to the base, and the upper end of the lifting adjustment base is connected to the lower end of the pillar , the upper end of the pillar is connected to the connecting member, the lower end of the insulating support is connected to the connecting member, the upper end of the insulating support is connected to the insulating spanning net, a beam is connected between two adjacent connecting members, and the spanning line passes between the insulating supports. 2. The novel insulating spanning frame according to claim 1, characterized in that the lifting adjustment base, pillars, connecting members, and beams are all made of aluminum alloy. 3. The novel insulating spanning frame according to claim 1, wherein the base is a hinged base. 4. The novel insulating spanning frame according to claim 1, characterized in that the pillars are lattice-type pillars, the beams are lattice-type beams, and the adjustment base is a lattice-type adjustment base. 5. The novel insulating spanning frame according to claim 1, wherein the insulating bracket is an epoxy resin insulating bracket. 6. The novel insulating spanning frame according to claim 1, characterized in that, the connection member is a three-prong connection member. 7. The novel insulating spanning frame according to claim 1, wherein the insulating spanning net is fixed on the insulating support by the Dyneema tension rope, the insulating support is fixed with a wind rope ring and an insulating tackle, and the insulating wind rope passes through it. Wind rope loop. 8. The novel insulating spanning frame according to claim 1, characterized in that, the insulating support comprises: 4 insulating tubes, a plurality of epoxy resin partitions, a first connecting plate, a second connecting plate, and 4 insulating tubes After the two ends pass through the epoxy resin partition, they are respectively connected to the first connecting plate and the second connecting plate. The first connecting plate is provided with a rib connected with the connecting member, and the second connecting plate is provided with a pulley hanging point and a windshield. A rope eye is connected with a pedal between the insulating pipes. 9. The novel insulating span frame according to claim 8, characterized in that the connecting member is provided with insulating tube fixing eyelets, ribs connected with the first connecting plate, and beam fixing holes.