Also called the bevel gear bevel gear, widely used in printing equipment, automobile differential, and also can be used in sluice, locomotives, ships, power plants, steel mills, railway track detection etc.. Bevel gear with respect to the metal gear, affordable, long wear life, strong function.

The characteristics of bevel gears:

1 strong resistance to chemical and corrosive

2 noise reduction and shock absorption

3 long life, high load bearing capacity

4 light weight, low cost

5 easy to shape, good lubrication

Quenching principle of bevel gear

Bevel gear load is large, the centering accuracy requirement is high, very high technical requirements. In the work process, it is inevitable to bear great friction, the best way is to bevel gear quenching heat treatment, so that it can improve the hardness, wear resistance and service life.

The purpose of quenching is the cold austenite martensite or bainite and martensite or bainite, and cooperate with different temperature tempering, to a substantial increase in steel strength, hardness, wear resistance, fatigue strength and toughness to meet different use requirements of all kinds of machinery spare parts and tools. It can also meet the special physical and chemical properties of some special steel by quenching.

Gleason Phoenix 280G bevel gear grinder accommodating gear ranging up to 280 mm in diameter. Has a rigid Phoenix as a whole column to cast away from the advanced polymer composites, the machine said to achieve high thermal stability, and to provide damping characteristics. High-speed, direct drive spindle combined with rapid change of wheels, pavilions and cooling head design, and automatic segmentation stock and at the same time truing and dressing, to provide faster floor to floor times. The automatic split was installed near the spindle gear, to ensure consistent quality. The pre finished gear tooth position to provide accurate and reliable stock division to automatically determine the device, reduce the operation errors.

Grinding mill working chamber lack of guardrail, wires and pipes to collect the scrap, keep it clean low preventive maintenance, the company said. The wheel dressing, for example, work out of the chamber telescope to reduce wiring and piping are usually found in there. Set no tools required to complete, including fixture, cooling and grinding head. The cooling head is also equipped with a removable hand and a laser guidance device, can be more effective, repeatable part on the part of tube alignment pieces, and wheel hydraulic release.

This machine can be equipped with a FANUC 30i or SIEMENS 740D CNC and function, designed to simplify the installation, maintenance and use of the robot and the Longmen Gleason automation software integrated user friendly.

1, straight bevel gear is a kind of most basic bevel gear, the processing is simple, but the transmission accuracy is too poor, instantaneous transmission than not, just as General de change the direction of transmission, institutions than does not have strict requirement on the speed and transmission, such as shaper workbench lifting, operating shaft, suitable for low velocity bodies.

2, bevel gear is in straight bevel gear based on the modified type, relative to the straight bevel gear of some disadvantages have been improved, such as: instantaneous transmission ratio is relatively accurate, high transmission precision a little, transfer efficiency is higher than that of the straight bevel gear, popular to say, compared with straight tooth bevel gear, drive to the relaxed a little, but mesh adaptation will due to the reasons for making very good grasp the best and suitable in speed is not too high institutions, and the need to lubricate.

3, the efficiency of spiral bevel gear is best, performance parameters of the best, at the bottom of the automobile drive shaft and the bridge [tooth pack] (is the bridge in the middle of the circular), which will have a set of spiral bevel gear pair, the performance are as follows:

Has the advantages of high transmission efficiency, low friction resistance, instantaneous transmission ratio, accurate transmission torque, especially suitable for high-speed transmission

Disadvantages: high cost, due to manufacturing and installation, the coincidence degree is difficult to grasp the best, need good lubrication, oil bath lubrication is the best

The spiral bevel gear and the quasi double bevel gear are the transmission modes of the main reducer of the car. What's the difference between them?

Spiral bevel gear as shown in Figure 2 (a) shows that the driving gear and driven gear axis intersect at one point, angle can be arbitrary, but in the vast majority of automobile driving bridge and deceleration gear pair made of angle of 90 DEG with the vertical arrangement. Due to the effect of transverse tooth overlapping, at least more than two pairs of meshing at the same time. Therefore, the spiral bevel gear can bear larger load, coupled with the teeth are not in the whole long tooth engagement, but gradually from one end of the tooth is continuous steering at the other end, making the work smooth, even when running at high speed, noise and vibration is very small the.

As shown in Figure 2 (b), the main and driven gear axis of the gear is not intersecting, and the space intersection angle is more than 90 degrees. The driving gear shaft has an upward or downward offset (corresponding to an upper offset or lower offset) with respect to the driven gear shaft. When the offset to a certain extent, can make a gear shaft from another gear through paraxial. So you can in each gear is arranged on both sides of the compact size of bearing, to enhance the support stiffness, ensure the correct tooth engagement, so as to improve the service life of the gear is very beneficial, it is used to link type drive axle.

With the spiral bevel gear due to intersect the gear axis is the winner, a driven gear helix angle is equal to the different quasi hypoid gear pair axis offset makes the active gear helix angle is greater than the helix angle of the driven gear. Therefore, the hypoid bevel gears to the normal module is equal, but the end module is different (end module end module of the driving gear is larger than the driven gear). This makes the driving gear drive quasi double cone gear ratio gear of spiral bevel gear transmission of the corresponding larger diameter and better strength and stiffness. In addition, due to the quasi hypoid gear transmission driving gear and the diameter of the helix angle larger, so that the tooth surface contact force is reduced, and the service life is improved.

But the transmission is small, the driving gear transmission quasi double cone gear relative to the driving gear of spiral bevel gear is too large, then the selection of spiral bevel gear is more reasonable.

The common failure mode of tooth surface is the fatigue pitting, that is, the fatigue wear. After the gear is stressed, the tooth surface will generate contact stress, the contact stress of the tooth surface will be changed. Under the operation of teeth in contact should be repeated, in the tooth surface (or a certain depth) appear small fatigue crack, crack will continue to spread, metal debris from the tooth surface spalling, forming small punctate pits. After the tooth surface pitting, the tooth profile surface is damaged, so that the vibration and noise is increased, so that it can not work properly.

Pitting appeared on the line in the vicinity of the root surface are connected to. This is because the tooth in meshing process, when the tooth in close to the pitch line meshing, relative sliding velocity direction change, oil film is not easy to form. And when the tooth in the section near the line of engagement, and meshing teeth less rubber injection molding machine, the gear is often only one of the tooth contact. Therefore, the contact stress of tooth surface is larger, so the most easily in the section near the line of pitting.

Hardened gear generally not prone to non corrosive pitting propagation, when pitting, when they occur, expansion, and the formation of pitting propagation. For surface hardening and surface carburizing and quenching of steel gear, tooth surface fatigue crack often occurs first in the hardened layer and soft core department junction, the crack extending, the tooth surface will flake, and tooth surface pitting different appearance, the area and the depth of the spalled pit is pitting than high. The tooth surface flaking phenomenon called spalling.

By improving the tooth surface hardness and improve the properties of lubricating oil, the deflection angle of the drive mode and can improve the precision of gear contact to reduce and prevent the occurrence of fatigue pitting.