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A translational processing device for arc-toothed cylindrical gears

A technology for cylindrical gears and processing devices, which is applied in the direction of driving devices, components with teeth, metal processing equipment, etc., can solve the problems of low gear precision, reduced load-bearing capacity, and insufficient rigidity, so as to improve the processing accuracy of gears and reduce the The effect of unbalance and improving the rigidity of members

Inactive Publication Date: 2016-04-13
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the radius of the cutter head decreases, the circumferential tooth thickness becomes more unequal, resulting in unstable meshing of the transmission pair and a reduction in the load-carrying capacity
The arc-toothed cylindrical gear processing device disclosed in the patent document ZL200410041297.2 adopts a parallel connecting rod structure. Although it can process circular-arc-toothed cylindrical gears with equal tooth thickness in the circumferential direction, the device has only one cycle for the gear. One-time cutting, low processing efficiency, large vibration, insufficient rigidity, low precision of processed gears, and cannot process materials with high hardness, such as steel tooth blanks
Therefore, there is still no processing method for arc-toothed cylindrical gears that meets the requirements of industrial applications, resulting in such gears being seldom used.

Method used

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  • A translational processing device for arc-toothed cylindrical gears
  • A translational processing device for arc-toothed cylindrical gears
  • A translational processing device for arc-toothed cylindrical gears

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, a single-cutter, single-blade constant-tooth-line-radius processing device for processing circumferentially equal-tooth-thick circular-arc tooth-line cylindrical gears is a processing device designed according to the principle of cutter translational processing of circumferentially equal-tooth-thickness, including a sun The wheel 3 is fixed on the supporting base 1, the planetary carrier 4 is movably connected to the supporting base 1 by the central shaft 2, the idler gear 5 and the planetary gear 6 mesh with each other, and are respectively movably connected to the planetary carrier 4 by a connecting column 10, and at the same time The idler gear 5 meshes with the sun gear 3, the cutter head 7 is fixed on the planetary wheel 6, and the blade 8 is fixed on the cutter head 7. Since the sun gear 3 and the planetary gear 6 have the same modulus and number of teeth, when the planet carrier 4 rotates around the central axis 2, the normal direction ...

Embodiment 2

[0022] Such as figure 2 Shown is a single-cutter, single-blade variable-tooth-tooth-tooth-tooth-tooth-tooth-thick arc-tooth-toothed cylindrical gear processing device in the circumferential direction, including a sun gear 3 fixed on a support seat 1, an idler gear 5 and an adjustment connecting rod through a connecting column 10 11 and the connecting rod 12 are movably connected, and the adjusting connecting rod 11 is movably connected to the center of the idler 5 and the sun gear 3, and the connecting rod 12 is movably connected to the centers of the idler 5 and the planetary gear 6, and the idler 5 is respectively connected to the sun gear 3 and the sun gear 3. The planetary gear 6 is engaged, and the multi-purpose planetary carrier 16 is movably connected on the support seat 1 through the central shaft 2. The planetary wheel is installed in the chute of the multi-purpose planetary carrier 16 through another connecting column 10, and the connecting block 13 is movably connec...

Embodiment 3

[0024] Such as image 3 Shown is a multi-cutter, single blade variable tooth line radius arc tooth line cylindrical gear processing device. On the basis of Example 2, the adjusting bolt 15 is changed to a multi-purpose adjusting bolt 17, and the adjusting connecting rod 11 is changed to a multi-purpose connecting rod 18. A gear pair consisting of a plurality of idler gears 5 and planetary gears 6 is added, which are evenly distributed around the sun gear 3. This device can reduce the unbalance of the planetary gear system, which is conducive to improving rigidity and processing accuracy; at the same time, each planet A cutter head 7 can be fixed at the center of the gear 6, so the planetary carrier 16 can be used for one revolution, and the tooth blank workpiece 9 can be processed many times, which improves the processing efficiency.

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Abstract

The invention discloses a processing device for an arc tooth trace cylindrical gear in the technical field of gears. The gear which the processing device is used for is provided with an arc tooth trace, an involute or an arc tooth profile and has equal circumferential tooth thickness. A plurality of blades of the processing device are evenly distributed around a planetary gear train. When the gear is processed, the blades perform plane motion, the gear axis and sun gear rotation axis of the planetary gear train are intersected in different planes, and the gear is processed in a generating method. The arc tooth trace cylindrical gear with the equal circumferential tooth thickness can be processed through the processing device, gear manufacturing precision and efficiency can be improved, and a processed gear pair has stability in transmission and is large in bearing capability and suitable for application to a high-speed heavy-duty gear transmission device.

Description

technical field [0001] The invention relates to a translational processing device for a planetary gear train of an arc-toothed cylindrical gear, and belongs to the technical field of gears. Background technique [0002] Arc-toothed cylindrical gear transmission has the characteristics of smooth meshing and strong bearing capacity. At present, there are many literatures studying its processing methods, but there are some shortcomings. For example, the arc-toothed cylindrical gear and its processing method disclosed in patent document ZL90105655.3 , when the gear is processed, the cylindrical gear is milled by the blade fixed on the rotating cutter head, and the working base surface of the blade changes continuously with the rotating cutter head. The thickness is equal, that is, the tooth space width is equal, but the circumferential tooth space width is not equal, that is, the circumferential tooth thickness is not equal. When the radius of the cutterhead decreases, the circ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q5/02B23F9/08
Inventor 孙志军侯力魏永峭唐锐常青林肖华军姜平任文娟张耀祖
Owner SICHUAN UNIV
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