Gear involute electric spark repairing device

A technology of open wire and gear, which is applied in the field of large modulus pinion involute on-site repair device, can solve the problems that affect safety production, produce undercut, machine vibration and noise, etc., and achieve long service life and increased service life Effect

Inactive Publication Date: 2013-01-16
车晋绥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the gear modulus of large machines such as autogenous mills is 20-30mm, the diameter of the large gear is 4-5M, the tooth shape is a trapezoidal linear meshing surface, and the involute of the pinion is severely worn, which will cause undercutting, machine vibration and noise.
Tradi

Method used

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  • Gear involute electric spark repairing device
  • Gear involute electric spark repairing device

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Example Embodiment

[0010] in figure 1 , 2 In the illustrated embodiment, two bearings 3 are provided on the frame 4 for fixing gear shafts. There is also a horizontal carriage 8. The carriage structure is the same as the carriage on a lathe, which can be made manually or electrically. Below the frame 4 are equipped with an oil return tank 5, a pulse power supply box 7, and an oil pump tank 6 The oil return tank 5 is connected to the oil pump tank 6. The vertical carriage 9 is fixed on the horizontal carriage 8, and the vertical carriage 10 is installed on the longitudinal carriage 9. The tool electrode 2 is made of a 2MM thick flexible conductive material in a strip shape. The discharge surface below is a gear involute shape. The insulating plate is movably connected, the insulating plate is fixed on the vertical carriage 10, and the tool electrode 2 is electrically connected to the pulse power box 7. The fuel injection pipe 1 is flat nozzle-shaped and installed on both sides of the tool electro...

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Abstract

The invention discloses a device for repairing an involute of a pinion of a large-size autogenous mill or ball mill on the spot, in particular a gear involute electric spark repairing device by which a gear subjected to repairing can be used for a long time. The gear involute electric spark repairing device comprises a stander, a shaft seat, a transverse dragging plate, a longitudinal dragging plate, a vertical dragging plate, a tool electrode, an oil spraying pipe, a pulse power box, an oil pump box and an oil returning tank, wherein two bearings, the pulse power box, the oil pump box, the oil returning tank and the transverse dragging plate are arranged on the stander; the longitudinal dragging plate is fixed on the transverse dragging plate; the vertical dragging plate is arranged on the longitudinal dragging plate; the discharge surface of the tool electrode is in a gear involute shape and is fixed on the vertical dragging plate; the oil spraying pipe is arranged on the tool electrode and is connected with the oil pump box; the tool electrode is electrically connected with the pulse power box; and the oil returning tank is connected with the oil pump box. The gear involute electric spark repairing device can be formed and processed at one time; and the shape of the gear subjected to repairing is similar to that of a new gear. The device is a good method which is used for repairing the pinion of the large-size ball mill in a dressing plant and a thermal power plant and can prolong the service life and reduce the cost and the maintenance amount.

Description

technical field [0001] The invention relates to an involute on-site repair device for large modulus pinion gears such as self-mills and ball mills, in particular to a gear involute electric spark repair device for gears with a long service life after repair. Background technique [0002] At present, the gear modulus of large machines such as autogenous mills is 20-30mm, the diameter of the large gear is 4-5M, the tooth shape is a trapezoidal linear meshing surface, and the involute of the pinion is severely worn, which will cause undercutting, machine vibration and noise. Traditional repair method: Grinding the top of the pinion with a portable grinder so that undercutting does not occur between the top of the pinion and the root of the large gear. Because the involute of the pinion cannot be repaired, undercutting will occur again after the gear is used soon, which will affect production safety. Contents of the invention [0003] In order to overcome the shortcoming of th...

Claims

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Application Information

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IPC IPC(8): B23H1/00B23H7/30
Inventor 车晋绥
Owner 车晋绥
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