Spline shaft‌

Spline shaft is a kind of mechanical transmission, which transmits mechanical torque just like flat key, semi-circular key and inclined key. There are longitudinal keyways on the outer surface of the shaft, and the rotating parts sleeved on the shaft also have corresponding keyways, which can keep synchronous rotation with the shaft. While rotating, some can also slide longitudinally on the shaft, such as gear shifting of gearbox. The spline shaft has the advantages of strong bearing capacity, stable transmission, compact structure, high transmission efficiency, convenient installation, high transmission precision, long service life and wide application range.

Spline shafts are widely used, mainly including aircraft, automobiles, tractors, machine tool manufacturing, agricultural machinery and general mechanical transmission devices.

Semiaxis

Semi-axle, also known as drive shaft or transmission shaft, is mainly used to connect the differential and drive wheel of the vehicle and transmit torque. It is usually made of a hollow steel tube with splines or square teeth inside to connect with the differential and the driving wheel. The structure of the semi-axle is relatively simple, but it bears a large torque, so it needs to have certain strength and rigidity.

The application scope of the semi-axle mainly includes passenger cars, commercial vehicles with small total mass and commercial vehicles with large total mass.‌

Gear shaft

Gear shaft refers to a mechanical part that supports rotating parts and rotates with them to transmit motion, torque or bending moment. Generally, it is a metal rod, and each segment can have different diameters. The rotating parts in the machine are mounted on the shaft.

Gear shaft has the characteristics of high transmission efficiency, strong bearing capacity, wide applicability, low maintenance cost and long service life, so it is widely used in industrial production and machinery manufacturing fields such as automobile industry, aerospace, construction machinery, paper industry, electric power industry and so on.

NO

Project

Parameter

1

technical parameter

Diameter of spindle through hole

70

2

Maximum machining modulus across the board

4mm

3

Maximum machining helix angle

±45°

4

Maximum machining length

600mm

5

Hob speed series

Infinitely variable speeds

6

Hob speed range

0-1500r/min

7

Axial feed series

Endless feed

8

Axial feed range

0.1-4mm/r

9

Functional part

Control form

System control

10

Transmission form

Electronic gearbox

11

Differential form

Electronic differential

12

Lubrication form

Automatic centralized timing quantitative lubrication

13

Hob material

Cemented carbide/high speed steel

14

Cutting cooling form

Oil cooling and air cooling

15

Sheet metal form

Without

16

Machining gear form

Straight, helical, worm gear

17

Configuration form

Control system

KND

18

Hob power head

XUANMAN custom made

19

Hob shaft motor

NAZHI or HUADA 7.5KW

20

Workpiece shaft motor

NAZHI or HUADA 4.4KW

21

Z-direction motor

NAZHI or HUADA 1.3KW

22

X-direction motor

NAZHI or HUADA 1.3KW

23

Tool-shifting motor

NAZHI or HUADA 1.0KW

NO

Working procedure

Superiority

Picture

1

Sliding table scraping

After scraping, the surface flatness is better, the contact is better, and there are more contact points, and it has the function of hardening the surface and strengthening the wear resistance.

2

Table scraping

After scraping, the surface flatness is better, the contact is better, and there are more contact points, and it has the function of hardening the surface and strengthening the wear resistance.

3

Laser interferometer detects repeated positioning accuracy.

It can analyze the dynamic characteristics of the ball screw of machine tool, the response characteristics of the driving system and the dynamic characteristics of the guide rail, etc., with high accuracy and efficiency, and provide a basis for machine tool error correction.

4

Whole machine debugging

NO

Part

Function

Mechanical part

1

Hob shaft

The servo motor is directly connected, the rotation speed can reach 0-1500r/min, the stepless speed regulation is realized, and the hob can automatically run.

2

Workpiece shaft

Instead of bearing structure, the front flange of the spindle can be equipped with chuck, the through hole of the spindle is 70mm, and the servo motor gear is used for differential deceleration, with a speed of 0-500r/min and stepless speed change, and the front pneumatic chuck is added at the tail end.

3

slideway

It is changed to ball screw pair transmission, and the guide rail remains the same.

4

tailstock

Change to hydraulic form, and the pressure can be adjusted.

5

Hydraulic pump station

Independent plug-in, separated from the cooling circulation system, to avoid mixing.

6

lubrication system

Automatic centralized timing and quantitative lubrication, with fault alarm function, can automatically execute lubrication program when starting.

7

chip removal

without

8

Oil mist treatment

without

Electrical part

9

system

"KND" gear hobbing system can process straight teeth, helical teeth and worm wheels, and it is reliable, simple and easy to learn.

10

electrical machinery

NAZHI or HUADA

11

number of axles

Five axes and three linkages

12

gear case

Electronic gearbox