Synchronous belt transmission is a state-of-the-art transmission method that uses the interlocking of belt teeth to transmit power.
It has precise synchronous transmission, does not require lubrication, prevents slippage, is environmentally friendly and operates with minimal noise.
Its transmission efficiency is impressive, reaching 0.98, and the speed ratio can vary from 1:10. The maximum line speed is 50M/s and the transmission rate can range from hundreds of watts to hundreds of kilowatts, making it suitable for multi-axis transmission.
Synchronous belt transmission is widely used in a variety of industries, including textiles, automobiles, chemical fibers, cigarette production, papermaking, printing and chemicals.
In recent years, there has been an increasing demand for its use in the mining, metallurgy, steel machinery and medical equipment industries.
1. Selection and calculation of vertical synchronous belt and pulley:
Design requirements for vertical direction: The total weight of the tray and its contents is 20 kg (196 Newtons) and it takes 6 seconds for the slider to travel a distance of 1250 millimeters.
1. Design power
Check the table according to working conditions and consider Ka = 1.5
2. Belt type selection
According to
and pulley speed
Select the 5m bow belt after checking the table.
3. Z number and pitch diameter of belt teeth
According to the belt speed and the size of the installation, it is advisable to choose the highest value possible. After consulting the table, a 5M belt with 26 teeth and pitch diameter was selected.
Outer circle diameter
4. V-belt speed
5. Gear ratio
The driving and driven pulleys are consistent, the gear ratio is I = 1, and the driving and driven pulleys are the same model.
6. Initial center distance
7. Pitch length and number of teeth of the starting belt
8. Actual center distance to
9. Rated reference power
Check the table
10. Bandwidth bs
11. Retaining ring configuration
5m pulley, minimum circlip height k = 2.5 ~ 3.5, r = 1.5, circlip thickness t = 1.5 ~ 2
Retaining ring bend diameter
Retaining ring outer diameter
Vertical synchronous pulley:
- Pulley type: 5m circular arc tooth
- Pitch diameter: 41.38 mm
- Number of teeth: 26
- Outer diameter: 40.24mm
- Total pulley width: 13.3 mm
- Retaining ring outer diameter: 48.24 mm
- Pulley hole diameter: 10mm
- Fixing method: Fixing screw (side fixing with 7mm table width and M3 threaded hole, fixed with two screws at 90 degrees)
Vertical synchronous belt:
5m bow belt type belt, with a bandwidth of 10.3mm and a pitch length of about 3418mm
Synchronous pulley selection
The following parameters require attention when selecting a synchronous pulley: tooth shape, number of teeth, material and surface finish, and pulley shape.
1. Tooth shape
The tooth shape of synchronous belts can be categorized into several types: English (Ordinary Torque) MXL, XL, L, H; Metric (high torque) S2M, S3M, S4M, S5M, S8M; and (Ordinary Torque) T5 and T10.
When selecting tooth shape, refer to the following table for guidance.
Simple type selection table 1 (MXL, XL, L, H, T5, T10)
Simple Type Selection Table 2 (S*M)
2. Number of teeth
The number of teeth is an important parameter of the synchronous pulley.
The pitch diameter of the synchronous pulley = the number of teeth × Pitch / π
3. Treatment of materials and surfaces
The common materials of synchronous pulley are aluminum alloy and 45 steel, and the surface treatment is:
- Aluminum wheel: natural color oxidation, black oxidation;
- Steel wheel: Fe 3 Ó 4 protective film, electrolytic nickel plating
4. Shape of the pulley
K Wheel
One wheel
Wheel B
Wheel D
Belt shaft hole specification:
