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A single-handle 12-stage transmission structure

A variable speed structure, single handle technology, applied in the direction of controlled components, instruments, mechanical control devices, etc., can solve the problems of unsightly appearance and layout of machine tools, low cost, inconvenient use, etc., and achieve convenient sliding operation, fewer teeth, The effect of easy assembly

Active Publication Date: 2018-04-27
南通西马特机器制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the main drive transmissions of drilling machines (or drilling and milling machines) adopt 12-stage gear transmission. Two gears and a set of triple gears are driven to complete 12 levels of different speeds in the form of 2×2×3=12 (or 2×3×2=12). Most of them are similar, most of them use two handles to control two groups of gears respectively, and then use the switch to select the motor speed. , and then operate three times), the appearance and layout of the machine tool are not beautiful, and the cost is not low

Method used

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  • A single-handle 12-stage transmission structure
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  • A single-handle 12-stage transmission structure

Examples

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Effect test

Embodiment 1

[0017] Such as Figure 1-4 As shown, a single-handle 12-stage speed change structure includes motor 1, rotating shaft I2, rotating shaft II3, rotating shaft III4, rotating shaft IV5, and speed change handle 13. Motor 1 is connected to rotating shaft I2, and rotating shaft I2 is connected to rotating shaft II3, rotating shaft III4, rotating shaft Ⅳ5 is connected, internal gear 10 is provided on rotating shaft Ⅳ5, cam 14 is connected under rotating shaft Ⅰ2, camshaft 6 is arranged inside cam 14, thrust needle roller bearing 7 is arranged on the outside of camshaft 6, and switch 8 is connected to cam 14. The needle bearing 7 is externally connected with a large helical gear 9, and a positioning steel ball 15 is arranged between the cam 14 and the large helical gear 9, the large helical gear 9 meshes with the small helical gear 21, and the small helical gear 21 is connected with the gear II 23 through the transmission shaft 22 , the gear II23 is meshed with the gear I11, the gear ...

Embodiment 2

[0021] Such as figure 1 , 2 , 3, and 5, a single-handle 12-stage speed change structure, including motor 1, rotating shaft I2, rotating shaft II3, rotating shaft III4, rotating shaft IV5, and speed change handle 13, motor 1 is connected with rotating shaft I2, and rotating shaft I2 is connected with rotating shaft II3, The rotating shaft III4 and the rotating shaft IV5 are connected, the internal gear 10 is arranged on the rotating shaft IV5, the cam 14 is connected under the rotating shaft I2, the cam shaft 6 is arranged inside the cam shaft 6, the thrust needle roller bearing 7 is arranged outside the cam shaft 6, and the cam 14 is connected with a switch 8. The thrust needle roller bearing 7 is externally connected with a large helical gear 9, and a positioning steel ball 15 is arranged between the cam 14 and the large helical gear 9. The large helical gear 9 meshes with the small helical gear 21, and the small helical gear 21 passes through the transmission shaft 22 It is...

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Abstract

The invention discloses a single-handle 12-stage speed reduction structure. The single-handle 12-stage speed reduction structure comprises a motor, rotating shafts and a speed reduction handle. The motor is connected with the rotating shaft I. The rotating shaft I is sequentially connected with the rotating shaft II, the rotating shaft III and the rotating shaft IV. The lower portion of the rotating shaft I is connected with a cam. A cam shaft is arranged in the cam. A needle roller thrust bearing is arranged outside the cam shaft. The outer portion of the needle roller thrust bearing is connected with a large bevel gear. The large bevel gear is engaged with a small bevel gear. The small bevel gear is connected with a gear II through a transmission shaft. The gear II is engaged with a gear I. The gear I is connected with the speed reduction handle. A rotating speed sign is arranged on the speed reduction handle. One side of the cam is connected with a lever I, and the other side of the cam is connected with a lever II. The lever I and the lever II are each provided with a torsional spring. A fulcrum shaft is arranged on the lever II, and a shifting fork is arranged at the end of the lever II. The single-handle 12-stage speed reduction structure is reasonable in structure; due to the main transmission speed reduction manner, the number of the transmission shaft is small, the number of the gears is small, the number of gear teeth is small, the diameter of the gears is small, the slippage control is convenient, the transmission efficiency is high, noise is low, and assembling is convenient; and due to the speed reduction control manner, operation is smooth and convenient, positioning is reliable and free of gear disengagement, and the control force can be relieved.

Description

technical field [0001] The invention relates to a main transmission speed change mechanism of a metal cutting machine tool, and is especially suitable for the speed change transmission and manipulation of the main shaft of a drilling machine (or drilling and milling machine). Background technique [0002] Most of the main drive transmissions of drilling machines (or drilling and milling machines) adopt 12-stage gear transmission. Two gears and a set of triple gears are driven to complete 12 levels of different speeds in the form of 2×2×3=12 (or 2×3×2=12). Most of them are similar, most of them use two handles to control two groups of gears respectively, and then use the switch to select the motor speed. , and then operate three times), the appearance and layout of the machine tool are not beautiful, and the cost is not low. Contents of the invention [0003] The purpose of the present invention is to provide a single-handle 12-stage speed change structure. [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/02F16H63/32
CPCF16H59/0208F16H63/32F16H2306/00
Inventor 王豫康何发辉
Owner 南通西马特机器制造有限公司