Automated storage and retrieval systems demand a different performance profile from most conveying equipment — precise positioning accuracy, low backlash for repeatable indexing, and the higher input speed compatibility that servo-driven automation systems require. A standard worm-only gearbox can handle the right-angle output and self-locking that these systems benefit from, but the efficiency and precision ceiling of a worm-only mesh becomes a limiting factor as cycle rates and positioning tolerances tighten.
Ever-Power’s PC+NMRV helical-worm series addresses this gap directly — a helical gear pre-stage delivers the low backlash and higher input speed tolerance that servo control loops need, while the NMRV worm output stage retains the compact right-angle configuration and self-locking behaviour valuable in automated storage retrieval applications. This page covers the technical case for helical-worm drives in this application, three Australian automation deployments, and answers to specification questions from automation engineers.
| 要件 | 標準NMRV | PC+NMRVヘリカルワーム |
|---|---|---|
| ポジショニングの反発 | 標準的なウォームメッシュのバックラッシュ | らせん状の前段によりバックラッシュを低減 |
| 入力速度許容範囲 | 標準モーター入力範囲 | サーボモーターの入力速度互換性の向上 |
| 効率性を高める | 標準的なワームのみの効率 | らせん状の前段による効率の向上 |
| 自己ロック出力 | はい、30:1以上の比率です | はい、ワーム出力段階まで保持されます |
問題点: A high-density automated storage system’s positioning accuracy was inconsistent at the cycle rates required, traced to backlash accumulation in the original worm-only drive mechanism.
解決: Replacement with PC071+NMRV050 helical-worm units delivering reduced backlash matched to the system’s positioning tolerance requirement.
結果: Consistent positioning accuracy maintained across the system’s full operational cycle rate following the upgrade.
問題点: 自動化された冷蔵保管システムには、高速サーボモーター入力に対応しつつ、垂直保管時の位置決め安全性にとって重要な自己ロック機能を維持する駆動装置が必要だった。.
解決: PC063+NMRV040ユニットは、サーボ対応の入力速度範囲と、ウォームギア式セルフロック出力機構を備えていることが特長です。.
結果: Successful integration with the system’s servo control architecture while preserving the required position-holding safety characteristic.
問題点: A pharmaceutical distribution facility’s automated retrieval system required higher drive efficiency to reduce energy costs across continuous multi-shift operation.
解決: PC080+NMRV075 units selected for the helical pre-stage’s efficiency improvement over the facility’s previous worm-only configuration.
結果: Measurable reduction in drive-related energy consumption across the system’s continuous operating schedule.
| 🏭 Manufacturing Depth — over two decades of worm gear production extended to the helical-worm combination series, with consistent quality across both gear stages |
| 📡 Automation Engineering Support — confirm the correct PC frame and NMRV output stage combination against your servo motor and positioning requirements |
| 🔧 OEM Integration Support — custom shaft and flange configurations available for integration into automated storage retrieval system designs |
| 💰 Factory Direct Pricing — competitive cost for both prototype quantities and full automation system production volumes |
Consider PC+NMRV when your application involves servo motor input, requires tighter positioning backlash than a standard worm-only drive delivers, or runs continuous multi-shift operation where the helical stage’s efficiency improvement offers a meaningful energy cost benefit. For simpler indexing applications without these specific demands, standard NMRV often remains the more cost-effective choice.
PC063、PC071、PC080、PC090の各入力フレームは、それぞれ特定のNMRV出力段とペアになっており、さまざまなトルクと比率の組み合わせに対応します。サーボモーターの仕様、必要な出力トルク、位置決め許容値をお知らせいただければ、お客様の用途に最適な組み合わせを確認いたします。.
Yes, the NMRV worm output stage retains self-locking characteristics above the standard ratio threshold, the same property valued in standard worm-only drives for vertical positioning applications. This is preserved even with the helical pre-stage’s efficiency improvement at the input side.
The helical pre-stage accepts higher input speeds and torques than a worm-only input stage of equivalent output frame size, better matching typical servo motor operating characteristics. Provide your specific servo motor’s rated speed and torque for a confirmed compatibility check against our PC frame range.
The helical pre-stage typically delivers meaningfully higher efficiency than the equivalent reduction achieved through a worm-only path, which translates into lower motor thermal load and reduced energy cost over continuous operation. The practical magnitude depends on your specific ratio and duty cycle — we can discuss expected performance for your application during specification.
はい、弊社は自動化システムメーカーやシステムインテグレーターと直接連携し、OEM仕様に基づいた製品開発を行っています。これには、特定のサーボモーターや機械的なインターフェース要件に合わせたカスタムシャフト構成も含まれます。システム設計仕様をお知らせいただければ、弊社チームにてシステム統合についてご相談させていただきます。.
当社の全ヘリカルワームシリーズを比較してください PC+NMRVシリーズページ, または、当社の他の自動化物流アプリケーションをご覧ください。 アプリケーションページ.
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