Milling and drilling machine
A technology for drilling and milling machines and belts, which is applied to the parts of boring machines/drilling machines, drilling/drilling equipment, portable lifting devices, etc. It can solve the problems of not meeting the process requirements, sacrificing power, small torque, etc., and achieves low noise and high transmission. The effect of high power and high speed ratio
Inactive Publication Date: 2009-05-27
滕州市奥达机床厂
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Problems solved by technology
However, slowing down with a two-speed motor comes at the expense of power
This one-stage belt-driven drilling and milling machine (usually with a speed of 230 rpm) is difficult to form a low speed lower than 125 rpm, and it is easy to slip at low speed and has a small torque, which cannot meet the needs of reaming, boring, and drilling large holes. Process requirements
Method used
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[0007] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0008] From figure 1 It can be seen that the driving tower 2 is installed on the shaft of the motor 1 and the intermediate tower 4 is connected through the belt 3, and then the belt 5 is connected to the driven tower 6, and the driven tower 6 transmits the power to it through the spline sleeve. Spindle 7.
[0009] The first notable feature of the main transmission mechanism of the present invention is the wide speed range. It adopts two-stage tower wheel transmission, and the positions of the upper and lower grooves of belt 3 and belt 5 are respectively exchanged to obtain 9 speeds, with low speed of 120r / min and high speed of 3030r / min; Secondly, the transmission power is large. The three belt pulleys use different groove types. The driving tower wheel 2 is of type A pulley groove type, the driven tower wheel 6 is type B pulley groove type, and the ...
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The invention discloses a two-step belt speed-changing mechanism drilling-milling machine which can be lifted upwards and downwards on a square column, aiming at providing a drilling-milling machine which can run at both low speed and high speed by belt transmission and is applicable to various processes. The drilling-milling machine comprises a base, a machine body, a worktable and a mainshaft transmission mechanism. The motor shaft of the mainshaft transmission mechanism is provided with a driving cone pulley which is connected with a middle cone pulley by an A-typed V-belt and then is connected with a driven cone pulley by a B-typed V-belt; the driven cone pulley transmits the power to the mainshaft by a spline. The drilling-milling machine has high speed suitable for grinding and processing nonferrous metals, middle speed suitable for milling ferrous metals and low speed suitable for situations of reaming, boring and drilling large holes, thus enlarging the use range of the belt transmission. The drilling-milling machine has the advantages of simple structure, low manufacture cost, small noise and high performance-price ratio, and also has the functions of general drilling-milling machines at the same time.
Description
Technical field [0001] The invention relates to a small drilling and milling machine. Background technique [0002] At present, in the field of mechanical processing technology, drilling and milling machines, among them, the transmission mechanism that can be raised and lowered on the square column, one is a belt transmission mode, and the other is a gear transmission mode. The speed change mechanism adopting the belt transmission mode is usually a first-level belt transmission due to structural reasons. The low speed desired by the first-stage belt drive is usually achieved with the help of a two-speed motor. However, the speed reduction with a two-speed motor comes at the expense of power. This type of belt-driven drilling and milling machine (usually 230 rpm) is difficult to form a low speed lower than 125 rpm, and the low speed is easy to slip and has a small torque, which cannot meet the requirements of reaming, boring, and drilling large holes. Process requirements. Summar...
Claims
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Login to View More IPC IPC(8): B23Q5/04B23B47/16F16H55/36
Inventor 杜继富杜春霖
Owner 滕州市奥达机床厂