CN201145021Y - Vibration and noise reduction gear - Google Patents

Abstract

The utility model belongs to mechanical parts, in particular to a vibration-reducing and noise-reducing gear, which is composed of a gear body (4) and teeth (1), and is evenly distributed on the wheel belly between the root of the tooth and the outer circle of the fixing hole (5). A plurality of through holes (3) are provided, and the interference fit in the through holes (3) is equipped with foamed aluminum filler (2). The service life is very favorable.

Description

Vibration and noise reduction gear

technical field

The utility model belongs to mechanical parts, in particular to a vibration-reducing and noise-reducing gear.

Background technique

Gears and gear reduction boxes are commonly used parts of various machinery. Gear transmission and speed change are one of the most basic devices in machinery. Therefore, reducing the vibration and noise caused by gears is beneficial to reducing mechanical vibration and noise and improving the service life of machinery. , Improving the working environment has important ideal and practical significance. The vibration and noise generated by gears are the result of the combined effects of various factors; the main method of control is to eliminate or weaken the coercive force that arouses the gear noise, and take measures such as sound insulation, vibration isolation, shielding and elimination of the generated vibration and noise . At present, the measures for gear noise and vibration control at home and abroad: the first is to optimize the design of gear structure, including optimizing tooth shape, optimizing design parameters, etc.; the second is to improve the manufacturing process, improve the machining accuracy of gears, and reduce installation errors; third. It is damping control; the above methods have their own advantages and disadvantages, but in general, the effect of vibration and noise reduction is generally not ideal.

Contents of the invention

The purpose of the utility model is to overcome the above-mentioned technical deficiencies, and provide a vibration and noise reduction gear that can reduce the weight of the gear and have obvious vibration and noise reduction effects.

The technical solution adopted by the utility model to solve the technical problem is: a vibration-reducing and noise-reducing gear composed of a gear body and teeth, which is characterized in that a plurality of The through hole is interference-fitted with a filler filled with foamed aluminum.

The beneficial effect of the utility model is that: the gear has an obvious effect of reducing vibration and noise, remarkably reduces the vibration and noise of the machine, and is very beneficial to improving the service life of the machine.

Description of drawings

The following will be described in detail with examples in conjunction with the accompanying drawings.

Figure 1 shows the front view of the vibration and noise reduction gear.

Fig. 2 is a sectional view of A-A of Fig. 1 .

In the figure, 1-teeth; 2-foam filling; 3-through hole; 4-gear body; 5-fixing hole; 6-keyway;

Detailed ways

Referring to the accompanying drawings, a vibration-reducing and noise-reducing gear is composed of a gear body 4 and teeth 1, and is characterized in that six through holes 3 are evenly distributed on the wheel belly between the root of the tooth and the outer circle of the fixing hole 5, through which The interference fit in the hole 3 is equipped with foamed aluminum filler 2, the gear body 4 is provided with a keyway 6, and the key on the shaft is fixedly connected with the keyway 6 when the fixed hole 5 is assembled with the shaft.

Claims (1)

1. A vibration-reducing and noise-reducing gear, consisting of a gear body (4) and teeth (1), characterized in that a plurality of channels are evenly distributed on the wheel belly between the root of the tooth and the outer circle of the fixing hole (5). The hole (3), the interference fit in the through hole (3) is equipped with foamed aluminum filler (2).