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Noncircular bevel gear indexing device

A technology of non-conical gears and indexing devices, which is applied in the direction of hoisting devices, transmission devices, portable lifting devices, etc., can solve the problems of difficult processing, high cost, low precision, etc., achieve good dynamic characteristics, improve bearing capacity, The effect of compact mechanism layout

Inactive Publication Date: 2013-01-16
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The indexing device of the groove wheel mechanism and the indexing device of the missing gear mechanism have the characteristics of simple design and easy processing, but the dynamic performance is not good, the precision is low, and it cannot be used in high-speed and heavy-duty occasions; the cam-type indexing mechanism and the star-wheel-type indexing The degree mechanism has good dynamic performance, but it is difficult to process, easy to wear, high cost, and cannot achieve large divisions

Method used

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  • Noncircular bevel gear indexing device
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  • Noncircular bevel gear indexing device

Examples

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specific Embodiment approach 1

[0036] like figure 1 The shown non-conical gear indexing device includes a casing 10, which is characterized in that: the casing supports an input shaft 8 and an output shaft 1, a gear shaft 11 fixed on the casing 10, and a front end of the casing through bearings. Involute helical non-conical gear 5, planet carrier gear 6, input gear 9, planetary shaft 3, planetary non-conical gear 4, small bevel gear 7, large bevel gear 2. The input shaft 8 and the output shaft 1 are arranged alternately in space. 8 on the input shaft is connected with input gear 9 through a key, and input gear 9 meshes with planet carrier gear 6 . The planetary gear 6 is supported on the gear shaft 11 by a tapered roller bearing, the planetary shaft 3 is fixed on the bearing, and the involute helical non-conical gear 4 and the bevel gear 7 are fixed on both ends of the planetary shaft 3 through key grooves. One of the planetary gears is an involute helical non-conical gear 4 that meshes with the involute ...

specific Embodiment approach 2

[0039] like figure 1 The shown non-conical gear indexing device includes a casing 10, which is characterized in that: the casing supports an input shaft 8 and an output shaft 1, a gear shaft 11 fixed on the casing 10, and a front end of the casing through bearings. Arc helical non-conical gear 5, planet carrier gear 6, input gear 9, planetary shaft 3, planetary non-conical gear 4, small bevel gear 7, large bevel gear 2. The input shaft 8 and the output shaft 1 are arranged alternately in space. 8 on the input shaft is connected with input gear 9 through a key, and input gear 9 meshes with planet carrier gear 6 . The planetary gear 6 is supported on the gear shaft 11 by a tapered roller bearing, the planetary shaft 3 is fixed on the bearing, and the circular arc helical non-conical gear 4 and the bevel gear 7 are fixed on both ends of the planetary shaft 3 through key grooves. One of the planetary gears is a circular arc helical non-conical gear 4, which meshes with the circu...

specific Embodiment approach 3

[0042] like figure 1 The shown non-conical gear indexing device includes a casing 10, which is characterized in that: the casing supports an input shaft 8 and an output shaft 1, a gear shaft 11 fixed on the casing 10, and a front end of the casing through bearings. Involute spur non-conical gear 5, planet carrier gear 6, input gear 9, planetary shaft 3, planetary non-conical gear 4, small bevel gear 7, large bevel gear 2. The input shaft 8 and the output shaft 1 are arranged alternately in space. The input shaft 8 is connected with the input gear 9 through a key, and the input gear 9 meshes with the planetary gear 6; the gear shaft 11 supports the planetary gear 6 through a tapered roller bearing, and the planetary shaft 3 is fixed on the bearing, and the involute is straight Teeth non-bevel gear 4 and bevel gear 7 are fixed on both ends of the planetary gear shaft 3 through key grooves. One of the planetary gears is an involute straight-toothed non-conical gear 4, which mes...

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Abstract

A noncircular bevel gear indexing device comprise a box, an input shaft and an output shaft, a gear shaft, a noncircular bevel gear, a planet carrier gear, an input gear, a planet gear shaft, a planetary noncircular bevel gear, a small bevel gear and a large bevel gear, wherein the input shaft and the output shaft are supported on the box through bearings, the gear shaft is fixed on the box, and the noncircular bevel gear is arranged at the front end of the gear shaft. Power is input from the input shaft and is subjected to primary reduction by the input gear and the planet carrier gear. As the noncircular bevel gear is fixed, the noncircular gear and the input gear revolve while rotating, and resultant motion is transmitted to the output shaft through the bevel gears. A differential gear train combined mechanism of noncircular-bevel gears is used, indexing motion is resulted by the planet gear and the planet carrier, and the noncircular bevel gear indexing device has fine dynamic characteristics and large index number. The tooth profile of the gears is reasonable, so that bearing capacity of the gears is improved greatly. Machining process of the noncircular bevel gears is obtained to adapt to batch production only by slightly modifying the existing gear machining process. The noncircular bevel gear indexing device has 1 / 2 reduction ratio, and a high-speed motor can be selected for inputting. The noncircular bevel gear indexing device is compact in mechanism layout, easy to mount and applicable to rotary combined machine tools.

Description

technical field [0001] The invention relates to a mechanical transmission device, in particular to a non-conical gear indexing device. [0002] Background technique [0003] With the progress and development of automation, more and more combined machine tools are designed and applied in actual production to improve production efficiency and solve the problem of shortage of human resources. However, due to its compact structure and relatively small volume, the turntable combined machine tool is being used more and more. Its main movement is the intermittent movement of the turntable, and a mechanical indexing device must be used to realize this kind of movement. The performance of the indexing device has become a key factor restricting the machining speed and machining accuracy of the machine tool. [0004] The indexing device of the groove wheel mechanism and the indexing device of the missing gear mechanism have the characteristics of simple design and easy processing, bu...

Claims

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Application Information

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IPC IPC(8): F16H27/04F16H55/08F16H55/17
Inventor 刘有源郑方焱孙科陈定方
Owner WUHAN UNIV OF TECH
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