Lasting Machine Helical Gear Pair For Non-Parallel Shafts Motion Control

Lasting Machine Helical Gear Pair For Non-Parallel Shafts Motion Control
 
I. Design Features —— Precision Logic of Helical Gears for Non-Parallel Shafts
This is a pair of helical gears for non - parallel shafts. The core design centers around “spatial transmission efficiency and motion smoothness”:
1.Tooth Profile and Meshing Principle 
Adopting a 45° helix angle helical tooth, the tooth surface is distributed in a helical line. During meshing, the contact area of the tooth surfaces changes progressively. Compared with spur gears, the transmission impact is reduced by more than 60%, and the noise is ≤75dB (meeting the noise-reduction requirement of the lasting machine workshop). The non-parallel shaft layout (two shafts are perpendicular/intersecting) can replace bevel gears, reducing the volume of the transmission mechanism by 30%, and is suitable for the compact internal space of the lasting machine.
2.Geometric Parameter Matching
The gear module, number of teeth, and pressure angle need to be precisely matched. The load distribution on the tooth surface is optimized through modification. It ensures that the gear service life reaches 8000-12000 hours (far exceeding that of ordinary spur gears) during the high - frequency start - stop (feeding-sewing cycle) of the lasting machine.
 
II. Material Selection —— Functional Synergy of “Metal + Engineering Plastic”
The material combination of the driving gear (metal) and the driven gear (nylon) is a typical “strength - noise reduction” functional complementary design:
1.Metal Gear (Driving Gear)
20CrMnTi alloy structural steel is selected and undergoes carburizing and quenching (hardness HRC58 - 62) to ensure the tooth surface is wear-resistant and impact-resistant, and can withstand the instantaneous torque of 50-200N·m during the sewing process of the lasting machine (intermittent load of sole sewing).
2.Nylon Gear (Driven Gear)
PA66 + glass fiber-reinforced nylon is adopted. Its density is only 1/7 of that of steel. While being lightweight, it has self-lubricating properties, reducing the transmission energy consumption by 15%. Moreover, the elastic modulus of nylon is low, which can absorb meshing impact and further reduce the vibration of the lasting machine.
 
III. Adaptation Scenario —— Value of “Transmission Joint” of Lasting Machine
In the lasting machine (shoe-making and sewing equipment), this set of gears undertakes the core functions of “power distribution + motion control”:
1.Power Transmission Chain
It connects the servo motor and the feeding/sewing mechanism, and through gear reduction and torque increase, converts the high-speed rotation of the motor into the stable feeding of the feeding wheel, ensuring the uniform stitch of the shoe upper sewing.
2.Motion Control Precision
The smooth meshing characteristics of the helical gear, combined with the PLC control system of the lasting machine, can achieve a feeding length precision of ≤± 0.2mm (meeting the sewing requirements of different shoe types). And the gear reversing response time is ≤0.1s, supporting the rapid start-stop during the high-speed sewing of the lasting machine.
 
This pair of helical gears for non-parallel shafts, with precise tooth profile design and functional material combination, accurately meets the spatial transmission and stable sewing requirements of the lasting machine. It is not only the “transmission joint” for the lasting machine to achieve efficient and precise sewing, but also represents the development direction of “standardization + customization” in the transmission field of light industrial equipment —— supporting the process upgrade and cost control of the shoemaking industry through the technical optimization of small components.

DINGSCO Precision Gear Solutions — Pioneering Force in Equipment Transmission

Core Advantages: Cutting-Edge Equipment × Digitalized Processes × Full-Cycle Services

 
As a leading precision gear manufacturer, DINGSCO specializes in customized production of micro high-precision spiral bevel gears and hypoid gears through our multiple CNC seven-axis five-linkage spiral bevel gear grinding/milling machines and Gleason spiral bevel cutter technology. With DIN 6 precision class (tooth profile error ≤ ±5μm), 95%+ transmission efficiency, and ultra-high reduction ratios, we deliver reliable transmission solutions for robotics, motor drives, new energy vehicles, and more.

Why Choose DINGSCO?
✅ High Precision: Achieving DIN 6 grade accuracy, leading the industry in controlling tooth profile errors.

✅ High Efficiency: With a single - stage reduction ratio of up to 300:1, and a transmission efficiency of over 95%.

✅ Durability: 40% lower lifecycle cost, <0.5% failure rate.
✅ Fast response: The digital process can shorten the delivery cycle to 20 working days.

Contact Us Soon for gear optimization proposals and 3D meshing simulations!