Straight bevel gear

XNUMX. Straight bevel gear products:

Bevel gears are also called bevel gears. Straight bevel gears are bevel gears whose teeth are straight teeth.Its structure is very simple, and the transmission accuracy is high, and the transmission ratio is accurate. It is widely used in lifting tables, operating shafts, precision machinery and other mechanisms.Related to it are helical bevel gears and curved bevel gears.

Straight-tooth bevel gear transmission takes the big end parameter as the standard value.When calculating the strength, use the equivalent at the midpoint of the tooth widthgearAs the basis for calculation.

XNUMX. Parameters of spur bevel gear:

1. Cone angle 

2. Root cone angle

3. Top cone angle

4. Tooth root angle

5. Tooth root height

6. Tooth top height

7. Modulus

8. Taper distance

9. Equivalent number of teeth

10. Addendum circle diameter 

11. Tooth root circle diameter

12. Tooth width

13, tooth thickness 

14. Indexing circle tooth thickness

15. Inner hole diameter

16, keyway

17, head clearance

XNUMX. Straight bevel gear processing:

Straight bevel gears can be milled when the requirements are not high, and the profiling method is used; when the accuracy is high, they can be processed by planing or milling-cutting. 

Strictly speaking, spiral bevel gears are divided into two types: equiangular and equidistant. The tooth line of arc bevel gears is arc-shaped and is milled with a circular milling cutter.

Generally speaking, straight bevel gears are easy to process, but their load-bearing capacity is small.

XNUMX. The difference between straight bevel gear and helical bevel gear:

1,Spur gearThe tooth profile is parallel to the gear shaft, and the helical gear tooth profile forms a certain angle with the gear shaft.

2. For low-speed transmission, if the load is not large, spur gears are generally used.The cost is lower.

3. The coincidence degree of helical gear meshing is better than that of special, which is more suitable for occasions with large load and low speed.

XNUMX. Application of straight bevel gears:

It is widely used in lifting platforms, turbine boxes, operating shafts, precision machinery and other institutions. It can be used in engineering machinery, metallurgical equipment, steel rolling machinery, mining machinery, petrochemical machinery, various machine tools, various processing equipment, coal mining machinery, textile machinery , Ship machinery, shipbuilding industry, aerospace, forklifts, elevators, etc.