Description du produit
NMRV REDUCTION WORM GEARBOX
The NMRV 063 motor gearbox is made on the basis of the NRV 063 worm gearbox. A complete electric motor with a power of up to 2.2 kW develops a rotational speed of 900 – 2800 rpm. As standard, the gearmotor is supplied with a hollow output shaft. Installation of double-sided input and output shafts is possible.
Parts materials:
Case – aluminum, flanges – aluminum, worm – steel, worm wheel CHINAMFG – bronze.
Type of lubricant: synthetic ISO VG 320.
Weight: 6.2 kg.
Type designation scheme
NMRV – 063 – 7.5 – 186.7 – 1.1 – B3
- NMRV – worm gear motor
- 063 – size (center distance, mm)
- 7.5 – gear ratio
- 186.7 – output shaft rotation speed, rpm
- 1,1 – electric motor power, kW
- B3 – mounting position
NMRV 063 gearbox performance
| i | n 1 = 2800 rpm | n 1 = 1400 rpm | n 1 = 900, rpm | |||||||||
| n 2 , tr/min | T 2M , N * m | P kw | RD % | n 2 , tr/min | T 2M , N * m | P kw | RD % | n 2 , tr/min | T 2M , N * m | P kw | RD % | |
| 7.5 | 373 | 92 | 4.10 | 88 | 187 | 130 | 2.90 | 88 | 120 | 154 | 2.20 | 88 |
| 10 | 280 | 95 | 3.20 | 87 | 140 | 131 | 2.20 | 87 | 90 | 157 | 1.70 | 87 |
| 15 | 187 | 97 | 2.30 | 83 | 93 | 136 | 1.60 | 83 | 60 | 159 | 1.20 | 83 |
| 20 | 140 | 106 | 1.90 | 82 | 70 | 145 | 1.30 | 82 | 45 | 172 | 0.99 | 82 |
| 25 | 112 | 100 | 1.50 | 78 | 56 | 133 | 1.00 | 78 | 36 | 159 | 0.77 | 78 |
| 30 | 93 | 99 | 1.30 | 74 | 47 | 120 | 0.80 | 74 | 30 | 165 | 0.70 | 74 |
| 40 | 70 | 118 | 1.20 | 72 | 35 | 155 | 0.79 | 72 | 23 | 182 | 0.61 | 72 |
| 50 | 56 | 96 | 0.85 | 66 | 28 | 131 | 0.58 | 66 | 18 | 158 | 0.45 | 66 |
| 60 | 47 | 92 | 0.79 | 57 | 23 | 126 | 0.54 | 57 | 15 | 152 | 0.42 | 57 |
| 80 | 35 | 81 | 0.53 | 56 | 18 | 110 | 0.37 | 56 | 11 | 141 | 0.29 | 56 |
| 100 | 28 | 69 | 0.41 | 49 | 14 | 94 | 0.28 | 49 | 9 | 114 | 0.22 | 49 |
- n1 – rotational speed el. engine;
- n2 – revolutions on the output shaft;
- T 2M – torque on the output shaft;
- P is the maximum allowable engine power;
- RD – efficiency
GEARBOX FEATURE
| 1.Good quality,long life time,low noise. |
| 2.Compact,convenient. |
| 3.High efficiency,big torque. |
Overall and mounting dimensions NMRV 063
NMRV063 gear motor has a wide range of gear ratios.
Gear ratios: 5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 .
Output flange to NMRV 063 gearbox
Geared NMRV063 can be supplied with unilateral or bilateral output shaft.
The gearbox comes standard with a hollow output shaft
A torque arm is an additional option to the gearbox.
| Modèle | NMRV SERIES |
| Étape unique | RV25-RV150 |
| Rapport | 7.5-100 |
| Puissance d'entrée | 0.06KW-15KW |
| Output Speed | 14-280rpm |
| Couple de sortie | 5-1800Nm |
| Core parts | worm wheel,worm shaft |
| Core parts material | worm shaft:20 Cr Mn Ti,worm wheel:Nodular cast iron interal,9-4 copper external |
| Lubrification | RV30-90:synthetic oil, RV110-150:GN460-W mineral oil |
| Bearings | C&U |
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| Application: | Motor, Motorcycle, Machinery, Agricultural Machinery, Industry |
|---|---|
| Dureté: | Hardened |
| Installation: | Any Angle |
| Forme de l'engrenage : | Engrenage à vis sans fin |
| Étape: | Étape unique |
| Type: | Worm and Wormwheel |
| Exemples : | US$ 20/Piece 1 pièce (commande minimale) | |
|---|
| Personnalisation : | Disponible | Demande personnalisée |
|---|
Précautions de sécurité lors de l'utilisation des réducteurs NMRV
L'utilisation des réducteurs à vis sans fin (NMRV) exige une attention particulière à la sécurité afin de prévenir les accidents et les blessures. Voici quelques précautions de sécurité essentielles à prendre en compte :
- Équipement de protection individuelle (EPI) : Portez toujours un équipement de protection individuelle approprié, tel que des gants, des lunettes de sécurité et des vêtements de protection, afin de vous protéger des dangers potentiels.
- Consignation-étiquetage : Avant toute opération de maintenance ou de réparation, assurez-vous que l'équipement est correctement arrêté et verrouillé afin d'éviter tout démarrage accidentel.
- Entraînement: Seul le personnel qualifié, possédant la formation et l'expérience requises, devrait intervenir sur les boîtes de vitesses NMRV afin de minimiser les risques d'erreurs et d'accidents.
- Outils appropriés : Utilisez les outils appropriés et assurez-vous qu'ils sont en bon état. Des outils inadaptés peuvent causer des dommages ou présenter des risques pour la sécurité.
- Éclairage adéquat : Travaillez dans des zones bien éclairées afin d'améliorer la visibilité et de réduire les risques d'accidents dus à un éclairage insuffisant.
- Zone de travail sécurisée : Veillez à ce que la zone de travail soit propre, organisée et dégagée afin de prévenir les risques de trébuchement et d'améliorer la sécurité générale.
- Lubrification: Lors de l'application de lubrifiants, veillez à éviter tout déversement. Nettoyez immédiatement toute projection afin de prévenir les glissades et les chutes.
- Suivez les instructions du fabricant : Adhere to the manufacturer’s instructions, maintenance schedules, and safety guidelines when working on NMRV gearboxes.
- Electrical Safety: If the gearbox is electrically powered, ensure proper electrical safety protocols are followed during maintenance or repairs.
- Avoid Overloading: Do not exceed the recommended load capacities of the gearbox to prevent mechanical failures and potential hazards.
- Stay Clear of Moving Parts: Keep hands, clothing, and other objects away from moving parts to prevent entanglement or injury.
- Emergency Procedures: Be familiar with emergency shutdown procedures and know how to respond in case of an unexpected situation.
By following these safety precautions, you can help ensure a safe working environment and minimize the risk of accidents or injuries when working with NMRV gearboxes.
Common Problems Associated with NMRV Gearboxes
NMRV (worm gear) gearboxes are reliable and durable, but like any mechanical system, they can experience certain issues over time. Here are some common problems that can be associated with NMRV gearboxes:
- Overheating: Inadequate lubrication or excessive load can lead to overheating, causing accelerated wear and potential damage to the gearbox components.
- Noise and Vibration: Unusual noises or excessive vibration during operation could indicate misalignment, worn gears, or damaged bearings.
- Leakage: Oil leaks can occur due to worn seals or damaged gaskets, leading to lubricant loss and potential contamination of the surrounding environment.
- Worn Gears: Over time, gear teeth can wear down due to friction and load. This can result in reduced efficiency, increased backlash, and compromised performance.
- Misalignment: Improper installation or mounting can lead to misalignment between the input and output shafts, causing increased friction, wear, and reduced efficiency.
- Backlash: Excessive backlash between the worm gear and the mating gear can lead to poor positioning accuracy and reduced efficiency in motion control applications.
- Poor Lubrication: Using incorrect or inadequate lubricants, or neglecting proper lubrication maintenance, can lead to increased friction, wear, and potential failure of gearbox components.
- Seal Damage: Worn or damaged seals can result in oil leaks and contamination, affecting the performance and lifespan of the gearbox.
- Shaft Wear: Over time, the input and output shafts can experience wear due to load and friction, affecting the overall operation of the gearbox.
- Corrosion: Exposure to harsh environments or corrosive substances can lead to corrosion of gearbox components, reducing their lifespan.
To prevent and address these common problems, it’s crucial to follow proper maintenance and servicing practices, use high-quality lubricants, address issues promptly, and consult professionals when needed. Regular inspections and proactive maintenance can help extend the operational lifespan and reliability of NMRV gearboxes.
Working Principle of an NMRV Gearbox
An NMRV gearbox, also known as a worm gear reducer, operates based on a worm and worm wheel mechanism. Here’s how it works:
The gearbox consists of two main components: the worm (a screw-like shaft) and the worm wheel (a toothed wheel). The worm is driven by the input power source, while the worm wheel is connected to the output shaft.
As the worm rotates, its threaded shaft engages with the teeth of the worm wheel. The helical shape of the worm causes the teeth of the worm wheel to push against each other, resulting in a smooth and gradual transfer of motion. This mechanism provides the speed reduction and torque multiplication required for various applications.
One key characteristic of NMRV gearboxes is that the worm can turn the worm wheel, but the reverse is not possible due to the high friction generated by the helical threads. This feature prevents the output shaft from back-driving the input shaft, providing mechanical locking and enhancing safety and stability in applications.
The NMRV gearbox’s operation is continuous, and its simple design contributes to its reliability and efficiency. It is important to ensure proper lubrication to minimize wear and heat generation during operation.
editor by CX 2023-12-25