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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 | Output Torque | 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
| طلب: | Motor, Machinery |
|---|---|
| وظيفة: | Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction |
| تَخطِيط: | دُودَة |
| صلابة: | سطح السن المقوى |
| تثبيت: | Worm and Worm Wheel |
| خطوة: | خطوة واحدة |
| التخصيص: | متاح | طلب مخصص |
|---|
حساب نسبة التروس في مخفض السرعة الدودي
تُحدد نسبة التروس في مُخفِّض السرعة الدودي بعدد أسنان عجلة الدودة (المعروفة أيضًا باسم ترس الدودة) وعدد أسنان لولب عمود الدودة. صيغة نسبة التروس في مُخفِّض السرعة الدودي هي:
نسبة التروس = عدد أسنان عجلة الدودة / عدد أسنان لولب عمود الدودة
على سبيل المثال، إذا كان لعجلة الدودة 60 سنًا وكان لعمود الدودة خيط واحد، فإن نسبة التروس ستكون 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.
عند حساب نسبة التروس، تأكد من تصميم مخفض السرعة الدودي بشكل صحيح وأن نسبة التروس تتوافق مع الخصائص الميكانيكية المطلوبة لتطبيقك. بالإضافة إلى ذلك، ضع في اعتبارك عوامل مثل الكفاءة وقدرة التحميل وحدود السرعة عند اختيار نسبة التروس لمخفض السرعة الدودي.
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 |
| كفاءة | 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. |
| ردود فعل عنيفة | 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. |
| التطبيقات | 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.
مزايا استخدام مخفض السرعة الدودي في الأنظمة الميكانيكية
توفر مخفضات السرعة الدودية العديد من المزايا التي تجعلها مناسبة لمختلف الأنظمة الميكانيكية:
- نسبة تخفيض التروس العالية: توفر علب التروس الدودية تخفيضًا كبيرًا في السرعة، مما يجعلها مثالية للتطبيقات التي تتطلب نسبة تخفيض عالية للتروس دون الحاجة إلى تروس متعددة.
- تصميم صغير الحجم: تتميز مخفضات السرعة الدودية بتصميم صغير الحجم وموفر للمساحة، مما يسمح باستخدامها في التطبيقات ذات المساحة المحدودة.
- قفل ذاتي: تتميز علب التروس الدودية بخاصية القفل الذاتي، مما يعني أن لولب الدودة يمنع عجلة الدودة من عكس حركتها. وهذا مفيد للتطبيقات التي تتطلب من علبة التروس تثبيت حمولة في مكانها دون الحاجة إلى آليات كبح خارجية.
- تشغيل سلس وهادئ: تعمل علب التروس الدودية بحركة انزلاقية بين الأسنان، مما ينتج عنه تشغيل أكثر سلاسة وهدوءًا مقارنة ببعض أنواع علب التروس الأخرى.
- ناقل حركة عالي العزم: يمكن لصناديق التروس الدودية نقل مستويات عزم دوران عالية، مما يجعلها مناسبة للتطبيقات التي تتطلب خرج عزم دوران قوي.
- تبديد الحرارة: تساهم حركة الانزلاق بين البرغي الدودي وعجلة الدودة في تبديد الحرارة، وهو ما يمكن أن يكون مفيدًا في التطبيقات التي تولد الحرارة أثناء التشغيل.
- أداء مستقر: توفر مخفضات السرعة الدودية أداءً مستقرًا وموثوقًا، مما يجعلها مناسبة للتشغيل المستمر في مختلف الأنظمة الصناعية والميكانيكية.
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