Totally-closed integrated maintenance-free hoop bending machine gearbox

Abstract

The invention relates to the technical field of hoop bending machines, and discloses a totally-closed integrated maintenance-free hoop bending machine gearbox. The gearbox comprises a panel, a box body is arranged on the lower surface of the panel, a belt pulley is arranged in a groove of the box body, an external mounting block is fixedly connected to the upper surface of the box body, a main shaft is arranged on the external mounting block, and a disc is arranged at the upper end of the main shaft. A change gear set is hermetically arranged in the box body, the lower end of the main shaft penetrates through the lower surface of the box body and is rotatably connected with the bottom wall of the box body, and bearings are arranged between the main shaft and the external mounting block and between the main shaft and the bottom wall of the box body. According to the totally-closed integrated maintenance-free hoop bending machine gearbox, the concentricity of the bearings on the main shaft can be controlled between 0.001 mm and 0.003 mm, so that the concentricity is high, the service life of the bearings on the main shaft is prolonged, the main shaft rotates more flexibly, the situation of jamming is avoided, the stability and smoothness of the main shaft during rotation are further guaranteed, and meanwhile, the output rotation of the main shaft is greatly improved.

Description

technical field [0001] The invention relates to the technical field of hoop bending machines, in particular to a fully enclosed integrated maintenance-free hoop bending machine gearbox. Background technique [0002] The hoop bending machine is often used to make stirrups in the process of steel bar processing. It bends some 6mm and 8mm coiled steel bars and coiled threaded steel bars. The gearbox body is the main part of the hoop bending machine. Generally, the main shaft of the gearbox extends out of the bend The panel of the hoop machine is installed with the disc, so the main shaft is the main driving part of the gearbox. In order to ensure the smoothness of the main shaft rotation, generally most of the existing gearbox main shafts need to be installed with upper and lower bearings, and the lower bearing is installed on the main shaft. and the bottom of the gearbox, and the upper bearing is installed at the connection between the main shaft and the panel, which causes th...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a fully enclosed integrated maintenance-free hoop bending machine gearbox, which solves the problem that the concentricity of the two bearings on the main shaft is easily affected by the fact that the two bearings are not on the same mechanism

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