Spanner used in narrow space and application thereof

Abstract

The invention discloses a spanner used in a narrow space. The problem that bolts in the narrow space are not easy to lock or disassemble in the prior art is solved, the overall connection is reliable,the disassembly and assembly problems of bolts or nuts in the narrow space are solved, and the disassembly and assembly speed can be effectively increased. According to the specific scheme, the spanner used in the narrow space comprises a spanner main machine and a disassembling tool which can be clamped with the bolts or nuts, wherein the spanner main machine is bent, the spanner main machine isa pneumatic spanner main machine or an electric spanner main machine, the inner side of the spanner main machine is connected with the disassembling tool through a transmission shaft, the outer sideof the spanner main machine is connected with the disassembling tool through a connecting part, and a screwing sleeve ring is arranged on the peripheral side of the connecting part and covers the connection position of the connecting part and the disassembling tool.

Description

technical field [0001] The invention relates to the field of motor vehicles, in particular to a wrench used in a narrow space and its application. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] In the production process of bullet trains or other trains, the equipment compartment is regarded as a whole module. After the equipment compartment is manufactured, it is installed on the side beam of the train. When the equipment compartment module is installed, the equipment under the train has been installed, and the side beam has been There are bolts, and the distance between the existing bolts and the pre-tightening bolts of the equipment compartment is usually less than 13mm, resulting in a narrow space for locking the bolts of the equipment compartment, so that the existing bolts of the equipment compartment cannot be used for pre-tightenin...

AI Technical Summary

Problems solved by technology

[0003] In the production process of bullet trains or other trains, the equipment compartment is regarded as a whole module. After the equipment compartment is manufactured, it is installed on the side beam of the train. When the equipment compartment module is installed, the equipment under the train has been installed, and the side beam has been There are bolts, and the distance between the existing bolts and the pre-tightening bolts of the equipment compartment is usually less than 13mm, resulting in a narrow space for locking the bolts of the equipment compartment, so that the existing bolts of the equipment compartment cannot be used for pre-tightening. Pneumatic tools, in most cases consider using a ratchet wrench to lock the bolts

[0004] The inventor found that, in most cases, manpower installs the bolts through a ratchet wrench. Due to the narrow working space, the ratchet wrench has the problem of poor flexibility, and the pre-tightening time of each bolt is about 1.5-2min. Because each equipment compartment There are a large number of bolts that need to be tightened, the number is about 100 per vehicle, and there are problems such as high labor intensity for the constructor, low construction efficiency, and long working time.

[0005] Correspondingly, when the bolts and nuts are disassembled, due to the narrow space, there are also problems of low working efficiency and long working time

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