Descrizione del prodotto
RV series Characteristics
- RV – Sizes:–150
- Input Options: with input shaft, With Square flange,With Input Flange
- Input Power 0.06 to 11 kW
- RV-Size from 030 to 105 in die-cast aluminium alloy budy and over 110 in cast iron
- Ratios between 5 and 100
- Max torque 1550 N.m and admissible output radial loads max 8771 N
- Aluminium units are supplied complete with synthetic oil and allow for universal mounting positions, with no need to modify lubricant quantity
- Worm wheel: Copper (KK Cu).
- Loading capacity in accordance with: ISO 9001:2015/GB/T 19001-2016
- Size 030 and over are painted with RAL 5571 blue
- Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRVpower+NMRV, JWB+NMRV
- NMRV, NRV+VS,NMRV+AS,NMRV+VS,NMRV+F
- Options: torque arm, output flange, viton oil seals, low/high temperature oil, filling/drain/breather/level plug,Small gap
Basic models can be applied to a wide range of power reduction ratios from 5 to 1000.
Warranty: One year from date of delivery.
| WORM GEARBOX | |||||
| NMRV SERIES | Output Speed Range: | ||||
| Type | Old Type | Coppia in uscita | Output Shaft Dia. | 14rpm-280rpm | |
| NMRV030 | RV030 | 21N.m | φ14 | Applicable Motor Power: | |
| NMRV040 | RV040 | 45N.m | φ19 | 0.06kW-11kW | |
| NMRV050 | RV050 | 84N.m | φ25 | Input Options1: | |
| NMRV063 | RV063 | 160N.m | φ25 | With Inline AC Motor | |
| NMRV075 | RV075 | 230N.m | φ28 | Input Options2: | |
| NMRV090 | RV090 | 410N.m | φ35 | With Square flange | |
| NMRV105 | RV105 | 630N.m | φ42 | Input Options3: | |
| NMRV110 | RV110 | 725N.m | φ42 | With Input Shaft | |
| NMRV130 | RV130 | 1050N.m | φ45 | Input Options4: | |
| NMRV150 | RV150 | 1550N.m | φ50 | With Input Flange |
Starshine Drive
ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor was a state-owned military mould enterprise, was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.
Our Team
Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value
3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective measures
to prevent recurrence.
4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.
5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of
customer expectations and needs.
6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the product
is a product inspection to determine the qualified products.
Packing
Delivery
| Applicazione: | Motor, Machinery |
|---|---|
| Funzione: | Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction |
| Disposizione: | Verme |
| Durezza: | Superficie del dente indurita |
| Installazione: | Worm and Worm Wheel |
| Fare un passo: | Passo singolo |
| Personalizzazione: | Disponibile | Richiesta personalizzata |
|---|
Calcolo del rapporto di trasmissione in un riduttore a vite senza fine
Il rapporto di trasmissione di un riduttore a vite senza fine è determinato dal numero di denti della ruota elicoidale (nota anche come ingranaggio a vite senza fine) e dal numero di filettature sull'albero della vite senza fine. La formula del rapporto di trasmissione di un riduttore a vite senza fine è:
Rapporto di trasmissione = Numero di denti sulla ruota elicoidale / Numero di filettature sull'albero elicoidale
Ad esempio, se la ruota elicoidale ha 60 denti e l'albero a vite senza fine ha una filettatura singola, il rapporto di trasmissione sarebbe 60:1.
It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.
Nel calcolo del rapporto di trasmissione, assicurarsi che il riduttore a vite senza fine sia progettato correttamente e che il rapporto di trasmissione sia in linea con le caratteristiche meccaniche desiderate per l'applicazione. Inoltre, nella scelta del rapporto di trasmissione per un riduttore a vite senza fine, è necessario considerare fattori quali efficienza, capacità di carico e limiti di velocità.
Worm Gearbox vs. Helical Gearbox: A Comparison
Worm gearboxes and helical gearboxes are two popular types of gear systems, each with its own set of advantages and disadvantages. Let’s compare them:
| Aspect | Worm Gearbox | Helical Gearbox |
| Efficienza | Lower efficiency due to sliding friction between the worm and worm wheel. | Higher efficiency due to rolling contact between helical gear teeth. |
| Torque Transmission | Excellent torque transmission and high reduction ratios achievable in a single stage. | Good torque transmission, but may require multiple stages for high reduction ratios. |
| Noise and Vibration | Generally higher noise and vibration levels due to sliding action. | Lower noise and vibration levels due to smoother rolling contact. |
| Backlash | Higher inherent backlash due to the design. | Lower backlash due to meshing of helical teeth. |
| Efficiency at Higher Speeds | Less suitable for high-speed applications due to efficiency loss. | More suitable for high-speed applications due to higher efficiency. |
| Overload Protection | Natural self-locking feature provides some overload protection. | May not have the same level of inherent overload protection. |
| Applicazioni | Commonly used for applications requiring high reduction ratios, such as conveyor systems and heavy-duty machinery. | Widely used in various applications including automotive transmissions, industrial machinery, and more. |
Both worm and helical gearboxes have their place in engineering, and the choice between them depends on the specific requirements of the application. Worm gearboxes are preferred for applications with high reduction ratios, while helical gearboxes are chosen for their higher efficiency and smoother operation.
Vantaggi dell'utilizzo di un riduttore a vite senza fine nei sistemi meccanici
I riduttori a vite senza fine offrono numerosi vantaggi che li rendono adatti a diversi sistemi meccanici:
- Rapporto di riduzione elevato: I riduttori a vite senza fine offrono una significativa riduzione di velocità, risultando ideali per applicazioni che richiedono un elevato rapporto di riduzione senza la necessità di ingranaggi multipli.
- Design compatto: I riduttori a vite senza fine hanno un design compatto e salvaspazio, che ne consente l'utilizzo in applicazioni con spazio limitato.
- Autobloccante: I riduttori a vite senza fine presentano proprietà autobloccanti, il che significa che la vite senza fine può impedire alla ruota elicoidale di invertire il proprio movimento. Questo è vantaggioso per le applicazioni in cui il riduttore deve mantenere un carico in posizione senza l'ausilio di meccanismi di frenatura esterni.
- Funzionamento fluido e silenzioso: I riduttori a vite senza fine funzionano grazie a un movimento di scorrimento tra i denti, il che si traduce in un funzionamento più fluido e silenzioso rispetto ad altri tipi di riduttori.
- Trasmissione ad alta coppia: I riduttori a vite senza fine possono trasmettere elevati livelli di coppia, risultando quindi adatti ad applicazioni che richiedono una potente erogazione di coppia.
- Dissipazione del calore: Lo scorrimento tra la vite senza fine e la ruota elicoidale contribuisce alla dissipazione del calore, il che può essere vantaggioso in applicazioni che generano calore durante il funzionamento.
- Prestazioni stabili: I riduttori a vite senza fine offrono prestazioni stabili e affidabili, il che li rende adatti al funzionamento continuo in diversi sistemi industriali e meccanici.
Despite these advantages, it’s important to note that worm gearboxes also have limitations, such as lower efficiency compared to other gear types due to the sliding motion and potential for higher heat generation. Therefore, selecting the appropriate type of gearbox depends on the specific requirements and constraints of the application.
editor by CX 2023-09-26