CN103170940A - Bevel gear intermediate shaft insulation spanner - Google Patents

Abstract

An insulating wrench for intermediate shafts of bevel gears. Its special feature is that it is formed by connecting two epoxy resin tubes on the left and right. A long shaft is installed in each epoxy resin tube through a shaft sleeve. A gearbox is installed at the free end, and there are two intermeshing bevel gears in the gearbox, one is installed on the long axis, and the other is installed on the short axis perpendicular to the long axis, both the long axis and the short axis extend out of the gearbox, And the cross-section of its end is square; a shaft sleeve is installed at the connecting end of each epoxy resin pipe, the outer edge of the left shaft sleeve is processed with threads, the right side sleeve has a movable sleeve nut, and the left side is epoxy The long-axis end in the resin tube is a plug-in port, and the long-axis end in the right epoxy resin tube is a plug-in tongue. Operators can use it to stand on the ground and fasten loose bolts on high-level equipment in substations. The bevel gear intermediate shaft insulating wrench is convenient to use, and is convenient to carry and store.

Description

Bevel gear intermediate shaft insulation wrench

technical field

The invention belongs to the technical field of electric power transmission and transformation operation, and in particular relates to a tool for live inspection and maintenance of electric power transmission and transformation professional.

Background technique

In the live maintenance process of substations in the power system, special tools are needed for live maintenance equipment. However, there are currently no tools for live maintenance. When the bolts are loosened due to wind, operation and other reasons during the operation of the equipment, causing equipment failure, a power outage is required, which will cause economic losses to the enterprise.

Contents of the invention

In order to solve the problem that special tools are needed for maintaining equipment, an insulating wrench for tightening equipment bolts is provided, and its technical scheme is as follows.

An insulating wrench for intermediate shafts of bevel gears. Its special feature is that it is formed by connecting two epoxy resin tubes on the left and right. A long shaft is installed in each epoxy resin tube through a shaft sleeve. A gearbox is installed at the free end. There are two bevel gears meshing with each other in the gearbox, one is installed on the long axis, and the other is installed on the short axis perpendicular to the long axis. Both the long axis and the short axis extend out of the gearbox. And the cross-section of its end is square; a shaft sleeve is installed at the connecting end of each epoxy resin pipe, the outer edge of the left shaft sleeve is processed with threads, the right side sleeve has a movable sleeve nut, and the left side is epoxy The long-axis end in the resin tube is a plug-in port, and the long-axis end in the right epoxy resin tube is a plug-in tongue.

The major shaft, minor shaft and gearbox are all made of epoxy resin material. The sleeve can be replaced with a bearing, or a bearing can be installed between the sleeve and the shaft.

The long axis and short axis of the bevel gear intermediate shaft insulating wrench protrude out of the gearbox, and the cross section is square. Various types of socket wrenches can be set on it, and bolts of different sizes can be tightened.

A socket wrench can be used to tighten the nut on any square shaft head protruding from the gearbox, or a wrench or an electric wrench or a flywheel wrench can be used to clamp the shaft head to make it rotate. A bolt on a fastening device.

The present invention has the following advantages.

Because the outer tube, shaft and gear box of the bevel gear intermediate shaft insulating wrench are made of epoxy resin material, the insulation is good, and because the bevel gear intermediate shaft insulating wrench is composed of two links, the total length is 6 meters , the operator can use it to stand on the ground and tighten the loose bolts on the high equipment of the substation without entering a strong electric field. As long as the bolts are found to be loose, they can be tightened at any time, which avoids equipment failure caused by small defects and ensures the normal and safe operation of the equipment. And because it is connected by two, it can be disassembled and divided into two when not in use. In this way, it is convenient to carry and store.

Description of drawings

Fig. 1 is a full sectional view of the embodiment, Fig. 2 is a partial enlarged view A, and Fig. 3 is a partial enlarged view B. the

Detailed ways

Example

An insulating wrench for the intermediate shaft of a bevel gear, which is formed by connecting two left and right epoxy resin tubes with the same structure. The shaft sleeve 8 is installed with the first long shaft 5 , the first shaft sleeve 3 is installed on the first outer tube 4 with the first connecting pin 14 , and the gearbox 1 is installed on the first shaft sleeve 3 with the fourth connecting pin 15 . There are two bevel gears meshing with each other in the gearbox 1 , the first bevel gear 2 is installed on the first major axis 5 , and the second bevel gear 16 is installed on the first minor axis 19 perpendicular to the first major axis 5 . The first short shaft 19 is installed on the fourth sleeve 18 , and the fourth sleeve 18 is fixed on the gearbox 1 through the fifth connecting pin 17 . A third positioning pin 20 corresponding to the groove 19.1 on the first short shaft 19 is provided on the fourth bushing 18 . The gear case 1 is provided with a hole 1.1 corresponding to the first long axis 5, the first long shaft 5 protrudes from the hole 1.1, and the first short shaft 19 also protrudes from the gear case 1, and the cross sections of their ends are both Square, namely the end of axle becomes wrench head 5.3, so that socket wrench is installed on it. The connection relationship between the epoxy resin tube on the left and the gearbox is the same as that on the right. At the connecting end of the first outer tube 4, that is, at the left end, the second shaft sleeve 8 is installed by the second connecting pin 13, and the second shaft sleeve 8 is provided with the first groove 5.2 corresponding to the first long axis 5. The first locating pin 7 is used to move the sleeve nut 6 outside the second axle sleeve 8 . On the second major axis 11, the third axle sleeve 9 that is processed on its outer edge by the third connecting pin 10 is installed, and the screw thread on the nut 6 is engaged with the third axle sleeve 9. A second groove 11 . 1 corresponding to the second positioning pin 12 is provided on the second major axis 11 . The right end of the second major axis 11 is a plug interface 11.2, and the left end of the first major axis 5 is a plug tongue 5.1. When the two epoxy resin tubes are connected, the plug tongue 5.1 is inserted into the socket 11.2, and the nut 6 is screwed on the second shaft sleeve 8 at the same time, so that the left and right epoxy resin tubes are connected into a whole. The so-called "connecting pin" in this example is used to connect the two into one; the "locating pin" is to make the shaft only rotate and not move; the so-called "nut" is actually the "pipe collar" used on the plumbing pipeline .

Claims (1)

1. A bevel gear intermediate shaft insulating wrench is characterized in that it is formed by connecting two epoxy resin tubes on the left and right, in each epoxy resin tube, the long axis is installed through a shaft sleeve, and in each epoxy resin tube A gearbox is installed at the free end, and there are two intermeshing bevel gears in the gearbox, one is installed on the long axis, and the other is installed on the short axis perpendicular to the long axis, both the long axis and the short axis extend out of the gearbox, And the cross-section of its end is square; a shaft sleeve is installed at the connecting end of each epoxy resin pipe, the outer edge of the left shaft sleeve is processed with threads, the right side sleeve has a movable sleeve nut, and the left side is epoxy The long-axis end in the resin tube is a plug-in port, and the long-axis end in the right epoxy resin tube is a plug-in tongue.

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