CN201189645Y - Cable clamp and bolt tightner of transformer device - Google Patents

Abstract

The utility model discloses a bolt fastener for substation equipment, which has structural main points that the fastener comprises an insulated operating rod and a universal joint; the universal joint is a universal joint which can be connected with a bolt fastening sleeve; the universal joint is arranged at one end of the insulated operating rod; and the insulated operating rod is an insulated drive rod. The fastener has the advantages that due to the general suitability of the universal joint, the bolt fastening sleeve can be conveniently replaced according to the models of bolts, and angles can be adjusted through the universal joint when the threading directions of the insulated operating rod and a bolt are not on the same straight line, so as to guarantee normal fastening operation; therefore, people can directly stand on ground or frames and keep away from electrified bodies to work by adopting the bolt fastener.

Description

Substation equipment clamp bolt tightener

Technical field:

The utility model relates to a bolt tightener, in particular to a bolt tightener for wire clamps of substation equipment.

Background technique:

The connection between various electrical equipment and lead wires in substations mainly uses equipment clamps, and the connecting bolts of the clamp body or the drain plate often loosen and heat up after long-term operation. Due to the need for safe operation of the power grid, the method of live work is often used For fastening, the equipotential operation method was used in the past. Although the effect is ideal, the operation process of the equipotential operation is complicated, the work efficiency is low, and the safety risk is relatively high. In the case of insufficient safety distance for some equipment, power failure must be performed.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a bolt fastener for substation equipment that can carry out live fastening of loose equipment clamps by using the method of ground potential operation.

The purpose of this utility model is achieved through the following technical solutions:

A bolt tightener for substation equipment, the key points of its structure are: it includes an insulating operating rod and a universal joint, the universal joint is a universal joint that can be connected with a bolt fastening sleeve, and the universal joint is arranged on an insulating One end of the operating rod, the insulating operating rod is an insulating transmission rod.

A universal joint that can be matched with the bolt fastening sleeve is provided at one end of the ordinary insulating operating rod. Due to the universality of the universal joint, it is convenient to replace the bolt fastening sleeve according to the bolt type, and it can be used during insulation operation. When the rod and the bolt are not in a straight line, the angle is adjusted through the universal joint to ensure the normal fastening operation. Therefore, if the bolt tightener of the present invention is adopted, it is not necessary to use the equipotential operation method as in the prior art, and it must be in direct contact with the charged body, which increases the workload of the staff and also brings safety threats to the staff. , For example, it is possible that the operator may be scalded due to the severe heating of the bolt joints. Instead, it can stand directly on the ground or on the frame, and be transported away from the charged body to work.

A connection device is provided at the other end of the insulating transmission rod, and the connection device can be connected with another insulating transmission rod.

The connecting device is provided at one end of the insulating transmission rod, and the insulating transmission rod can be flexibly lengthened according to needs, so that the bolt fastener is suitable for more occasions.

The connecting device is a universal plug-in joint used for common insulating operating rods.

The connecting device can also be a connecting piece provided with threaded joints at both ends, and a threaded connecting device matched with the connecting piece is provided on the common insulating rod.

The insulating transmission rod is an epoxy fiberglass pilot pipe.

The bolt tightener for substation equipment also includes a ratchet wrench, and the ratchet wrench and the insulating operating rod are connected by a universal plug-in joint for the insulating operating rod.

The other end of the insulating operating rod is provided with a ratchet wrench, and the two are connected by a plug-in joint, so that they can be assembled in a timely manner according to needs, so as to be suitable for the assembly of various bolts with different angles.

The ratchet wrench and the plug-in joint are rotatably and flexibly connected.

A rotatable connection is adopted between the ratchet wrench and the plug-in joint, so that the ratchet wrench can be rotated relative to the plug-in joint, so that the fastener can be rotated and pushed back and forth , Tighten or loosen the nut.

The rotation between the ratchet wrench and the plug-in joint is a 360-degree rotation.

The movable connection between the ratchet wrench and the plug-in joint is through a connecting piece, the ratchet wrench is rotatably connected to the connecting piece, and the plug-in joint is rotatably connected to the connecting piece.

The connecting piece is a plate type connecting piece.

A permanent magnet is embedded in the bolt fastening sleeve of the bolt fastener.

A permanent magnet is embedded in the bolt fastening sleeve of the bolt fastener, and the removal or installation of bolts and nuts can be realized by the suction force of the magnet.

The utility model has the advantages of:

The cable clamp bolt tightener for substation equipment of the utility model can conveniently fasten the vertical and horizontal bolts on the electrical equipment, and can not only fasten the connecting bolts of ground equipment such as knife gates, but also The bolts of the high-altitude bus node and the bolt of the power transmission line drainage line node can be fastened, the operation is relatively convenient, and the expected goal can basically be achieved. Simultaneously the utility model also has:

1. In the past, equipotential operation was used for heating bolts of live fastening equipment. Tools such as insulated soft ladders and hard ladders must be installed during operation. One electrician for equipotential work and four coordinating electricians are required. It takes 40-50 minutes to complete one operation point. Only 2 ground potential operators are required to use the clamp bolt live fastener of the substation equipment, and it takes 10-20 minutes to complete one operation point.

2. High safety: using the equipotential operation method, it must be in direct contact with the electrified body. The clearance distance of the substation equipment is small, and the safety distance is difficult to ensure. When the equipment bolt nodes are seriously heated, the operator is in danger of being scalded. When using the clamp bolt live fastener of the substation equipment, the operator directly stands on the ground or the frame when operating, away from the live body, and is basically not restricted by the clearance distance of the equipment, which is relatively safe and reliable.

Description of drawings

Fig. 1 is a structural schematic diagram of a bolt tightener for substation equipment in Embodiment 1 of the present utility model

Fig. 2 is a structural schematic diagram of a bolt tightener for substation equipment according to Embodiment 2 of the utility model

Figure 3 is a view from the direction A of Figure 2

Fig. 4 is a B-B sectional view of Fig. 2

Explanation of symbols 1 insulating operating rod 2 universal joint 3 ratchet wrench 4 connection device 41 groove groove 42 pin 43 spring 44 sheet body 441 groove on sheet body 442 round hole at end of sheet body groove 45 Connector 5 Bolt Fastening Sleeve 51 Magnet

Detailed ways

Below in conjunction with accompanying drawing, the utility model is specifically described:

Example 1

A bolt tightener for substation equipment as shown in FIG. 1 includes an insulating operating rod 1 and a universal joint 2 . The universal joint is a universal joint that can be connected with the bolt fastening sleeve, and the universal joint is arranged at one end of the insulating operating rod, and the insulating operating rod is an insulating transmission rod. The insulating transmission rod is an epoxy fiberglass pilot pipe.

The parts not described in this embodiment are the same as the prior art.

Example 2

A bolt tightener for substation equipment as shown in Figures 2 and 3, comprising an insulating operating rod 1, a universal joint 2, and a ratchet wrench 3. The insulating operating rod is a transmission rod. The universal joint is a universal joint that can be connected with the bolt fastening sleeve, and the universal joint is arranged at one end of an insulating transmission rod, and the insulating transmission rod is an epoxy glass fiber reinforced plastic pipe. A connection device 4 is provided at the other end of the insulating transmission rod, and the connection device is a universal plug-in joint used for an ordinary insulating operation rod. The bolt tightener for substation equipment also includes a ratchet wrench, and the ratchet wrench is connected to the insulating operating rod through a plug-in joint arranged at one end of the insulating operating rod. The ratchet wrench and the plug-in joint can rotate 360 degrees, the connecting piece is a flat connecting piece, and a permanent magnet is embedded in the bolt fastening sleeve 5 of the bolt fastener 51. The plug-in joint is shown in Figure 4, which includes a groove-shaped groove 41 provided on the insulating rod, a bolt 42 provided on the two groove sides of the groove and passing through the two groove sides, and a spring 43 sleeved on the bolt. The spring, the plug-in joint also includes a sheet body 44 that can be inserted into the groove-shaped groove on the insulating rod. The sheet-shaped body is provided with a strip-shaped groove 441 along its longitudinal direction, and the groove end of the sheet-shaped body is arranged There is a circular hole 442 that is larger than the groove, and this circular hole cooperates with the latch on the end of the insulator and the spring on it. The ratchet wrench and the plug-in joint are connected by a 360-degree rotation, and the two are connected by a connecting piece 45. The ratchet wrench is rotatably connected to the connecting piece, and the plug-in joint is rotatably connected. on the connector. The connecting piece is a plate type connecting piece.

A permanent magnet is embedded in the bolt fastening sleeve of the bolt fastener.

The parts not described in this embodiment are the same as those in Embodiment 1.

Claims (10)

1, a kind of substation equipment bolt tightener, it is characterized in that: comprise insulating bar (1), universal joint (2), the universal joint of described universal joint for being connected with bolted sleeve (5), universal joint is arranged at an end of insulating driving rod, and described insulating bar is an insulating driving rod.

2, substation equipment bolt tightener according to claim 1 is characterized in that: the other end in insulating driving rod is provided with jockey (4), and described jockey can be connected with another insulating driving rod.

3, substation equipment bolt tightener according to claim 2 is characterized in that: described jockey is the used general bayonet joint of common insulating bar.

4, substation equipment bolt tightener according to claim 2, it is characterized in that: described jockey (4) can also be the connector that is provided with nipple at two ends, and common insulating bar is provided with the screw connection that connector therewith matches.

5, according to claim 3 or 4 described substation equipment bolt tighteners, it is characterized in that: described insulating driving rod is that fiber glass epoxy draws tube pulling.

6, substation equipment bolt tightener according to claim 5, it is characterized in that: described substation equipment bolt tightener also includes thorn wheel spanner (3), adopts the general bayonet joint of insulating bar to be connected between thorn wheel spanner and the insulating bar.

7, substation equipment bolt tightener according to claim 6 is characterized in that: be rotating flexible connection between described thorn wheel spanner and the bayonet joint.

8, substation equipment bolt tightener according to claim 7 is characterized in that: the rotation between described thorn wheel spanner and the bayonet joint is that 360 degree rotate.

9, substation equipment bolt tightener according to claim 8, it is characterized in that: the flexible connection between thorn wheel spanner and the bayonet joint is for to be connected by connector (45), wheel spanner is rotating is connected on the connector for thorn, and bayonet joint is rotating to be connected on the connector.

10, substation equipment bolt tightener according to claim 9 is characterized in that: the bolted sleeve (5) at bolt tightener is embedded with alnico magnets (51).

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