CN102689849A - Lifting device for replacing transformer - Google Patents

Abstract

The invention relates to a lifting device for replacing a transformer. Its structure is that a lifting steering shaft is sleeved in a lifting steering rod, one end of the lifting steering rod is inserted into a base, and the other end of the lifting steering rod is connected with one end of a fixed traction steel rope. connected; the other end of the fixed traction steel rope is buckled and fixed on the pole; the hoop is welded to the base. The invention reduces construction intensity, saves time and effort, can effectively avoid long-term and large-area power outage operations on the line, not only brings economic benefits to the enterprise, improves the power supply reliability of the line, and can effectively prevent users from being caused by power outages. loss; on the other hand, it can effectively improve work efficiency. It can also avoid the loss of fuel oil caused by the use of large lifting machinery and the pollution to the environment.

Description

Replacing the Transformer Lifting Device

technical field

The present invention relates to a transformer replacement device, in particular to a lifting device for transformer replacement.

Background technique

The reliability rate of power supply is a basic index related to the quality of power supply. Its level is not only directly related to the economic benefits of power supply enterprises, but also represents the service quality and management level of power supply enterprises.

Since 2011, various power companies have focused on the replacement of new energy-saving and environmentally friendly S11 amorphous alloy distribution transformers. A large part of the distribution transformers operating on the 10 kV distribution network, especially the rural distribution network, are S7 type, which have high power consumption and low energy leakage, and have already been overloaded.

In the initial work of replacing the transformer, the problems encountered are: 1. The geographical location limits the lifting machinery operation, and the terrain is complex, especially in rural areas. Some transformers are in vegetable gardens, some are in small alleys, and some Surrounded by obstacles such as granaries, the hoisting machinery cannot carry out operations at all; 2. The line cannot be powered off and the use of hoisting machinery is restricted, such as mines, hospitals, etc., and the power outage operation plan of the team is delayed again and again.

The traditional transformer replacement operation method is to put a crossbar on the cross arm of the line layout, tie a chain hoist, and lift after dismantling the inner iron of the stand. The construction intensity is high, it takes a long time, and there are many personnel, which is time-consuming and labor-intensive. It has become a top priority to overcome these geographical conditions, line operating conditions, and mechanical operation conditions, and improve the work efficiency of transformer replacement.

Contents of the invention

Aiming at the problems in the above-mentioned prior art, the present invention provides a transformer replacement lifting device, which solves the problem of high construction intensity, time-consuming and labor-intensive construction of transformer replacement in the prior art, and improves the power supply reliability of the line.

Technical scheme of the present invention is as follows:

The lifting steering shaft is set in the lifting steering rod, one end of the lifting steering rod is inserted into the base, the other end of the lifting steering rod is connected with one end of the fixed traction steel rope; the other end of the fixed traction steel rope is buckled and fixed on the wire on the rod; the hoop is welded to the base.

The base is provided with a cover to prevent the lifting steering shaft from slipping off.

The fixed traction steel rope is provided with turnbuckles for adjusting its length.

The vertical angle of the lifting steering rod is 45 degrees.

The advantages and effects of the present invention are as follows:

Reduce the construction intensity, save time and effort, and can effectively avoid long-term and large-scale power outages on the line, which not only brings economic benefits to the enterprise, improves the power supply reliability of the line, but also improves the image status of the enterprise among users. It can effectively avoid the loss of users caused by power outages; on the other hand, it can effectively solve the inability to use mechanical operations due to geographical location, and the large investment of manpower and material resources formed when using traditional methods of operation, and can effectively improve work efficiency. Using the traditional operation method to replace a 50 kVA transformer requires 10 people and takes 2 hours. Under the same conditions, it only takes 6 people to use the device and it takes 30 minutes to complete it, which can better promote the upgrading of rural power grids The renovation project was successfully completed on schedule. In addition, the popularization and application of the device can also avoid the loss of fuel oil and the like caused by the use of large hoisting machinery and the pollution to the environment.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a working schematic diagram of the present invention.

In the figure, 1. hoop, 2. hoisting steering rod, 3. fixed traction steel rope, 4. transformer platform, 5. transformer, 6. chain hoist, 7. lightning arrester crossarm, 8. pole, 9. Lifting hook.

Detailed ways

The present invention will be described in detail below in conjunction with specific embodiments with reference to the accompanying drawings.

Example

As shown in Figure 1-2, the lifting steering shaft is sleeved in the lifting steering rod 2, and one end of the lifting steering rod 2 is inserted into the base, and a cover is provided on the base to prevent the lifting steering shaft from slipping; the lifting steering rod The other end of 2 is connected with one end of the fixed traction steel rope 3 through a shackle, and the fixed traction steel rope 3 adjusts the vertical angle of the lifting steering rod 2 to 45 degrees; the other end of the fixed traction steel rope 3 is buckled and fixed on the pole 8; the fixed traction steel rope 3 is provided with turnbuckle screws for adjusting its length; the hoop 1 is welded to the base, and the hoop is adjusted and connected to adjust the length according to the thickness of the wire rod 8.

Cooperating tools include chain hoists 6 or two or three pulley blocks, hand ropes and wrenches.

The use process of the present invention is as follows:

Fix the hoop 1 on the line rod 8, slightly higher than the transformer table 4, and tighten the hoop 1 by adjusting the connecting plate and the adjusting screw.

Set the lifting steering shaft in the lifting steering rod 2, the top of the lifting steering rod 2 is fixed to the corresponding height of the line rod 8 with the fixed traction steel rope 3, and the length of the fixed traction steel rope 3 is adjusted by the turnbuckle screw to adjust The vertical angle of the lifting steering rod 2 is generally advisable at 45 degrees.

After lifting the transformer 5 on one side of the transformer platform 4 to slightly higher than the transformer platform 4, pull the lifting steering rod and the transformer rotation through the hand rope tied to the transformer, rotate the transformer to a suitable position on the transformer platform 4, and start the lifting work. Finish.

The present invention has carried out two load-bearing tests, respectively lifting transformers of 50 kVA and 200 kVA, and the load-bearing has passed the inspection.

The capacity of transformers in rural power grids is generally below 100 kVA, and the load-bearing application range of the present invention is currently set at transformers below 160 kVA, which meets the needs of replacement.

Claims (4)

1. Replace the transformer lifting device, which is characterized in that the lifting steering shaft is set in the lifting steering rod, one end of the lifting steering rod is inserted into the base, and the other end of the lifting steering rod is connected with one end of the fixed traction steel rope; the fixed traction The other end of the steel rope is buckled and fixed on the pole; the hoop is welded to the base. 2. The lifting device for replacing a transformer according to claim 1, characterized in that the base is provided with a cover to prevent the lifting steering shaft from slipping. 3. The lifting device for replacing a transformer according to claim 1, characterized in that said fixed traction steel rope is provided with turnbuckle screws for adjusting its length. 4. The lifting device for replacing a transformer according to claim 1, characterized in that the vertical angle of the steering rod of the lifting is 45 degrees.

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