وصف المنتج
Quick Details
| شكل: | Pinion | مكان المنشأ: | HangZhou, China | رقم الموديل: | 1230 |
| اسم العلامة التجارية: | في |
Packaging & Delivery
| تفاصيل التغليف: | Neutral Packing or Customized Packing |
| تفاصيل التسليم: | 25-30 days after the order confirmed |
وصف المنتج
| منتج | Rack and pinion plastic Steel gear rack motor Automatic gate gear rack Sliding door gear rack manufacturer |
| طلب | Machine tools |
| Specifications / Features | Precision production machine Strictly quality control system Teeth and bevel spiral gear specifications are available OEM/ ODM orders welcome |
| Primary competitive advantages | مخصص Quality Approvals Country of Origin Green Product Reputation After-sales service Product Performance Small Orders Accepted Experienced Staff Prompt Delivery |
| Main Export Markets | Asia Australasia Central / South America Eastern Europe Mid East / Africa North America Western Europe |
معلومات عنا:
As your one-stop source, AT PRECAST,we design, manufacturer and distribute precast concrete accessories including the Lifting Systems and Anchoring systems Coil and Ferrule Inserts. for Concrete and Prefabricated area.
As a leader in developing concrete accessory products, our main goal is to produce products that are safer, faster and more cost efficient.
With more than totally 50 years working experience, our entire staff is dedicated to provide you with the best customer service and competitive prices. Our sales force are able to answer your questions quickly and offer you technical support .
ضمان:
100% جودة التصنيع.
نضمن أن منتجاتنا تلبي المواصفات التي قدمتموها.
أسعار تنافسية للغاية
التوصيل إلى الميناء أو باب منزلك
4 - 8 أسابيع فترة التسليم
نتولى جميع الأعمال الورقية
طلبات الحاويات الجزئية
خيارات دفع مرنة
خيارات أدوات فريدة
مجموعة كاملة من خيارات التعبئة والتغليف من التعبئة بالجملة إلى التعبئة الجاهزة للبيع بالتجزئة
تتوفر خدمات اختبار شاملة
الأسئلة الشائعة:
1. Where is your location?
We are located in HangZhou City of China and are closed to Airport. It takes 30minuts by car from Liuting Airport our company.
2. How long has the company been established?
AT INDUSTRY was established in 2009. There is 6 years exporting experiences.
3. How many employees do you have?
الإدارة / المبيعات 4
Engineering / design as our partner 8
Production as our partners 120
Quality assurance / inspection 10
4. Which countries do you export to?
U.S.A, Germany, France, Italy, UK, Brazil, Middle east of Asia, Thailand,
5. What proportion of your goods are exported?
100% of our production are exported to all over the world.
6. How long does it take to receive samples?
a) Pattern:30-45days after order
b) Sample:30days after pattern finishing.
c) The lead time is the general production period and does not include the transportation time.
7. New product development process
Got tooling order and sample order with 50% deposit—Hold a meeting with the relation dept. to ensure the developing schedule—Design pattern, fixture and gauge and making them in our house—mold steel buying—Machining—Inspection—Send out the sample with initial inspection report.
8. How long is the manufacturing lead time?
Mass Production: 90days after sample approval by yours.
The lead time is the general production period including the transportation time.
We could make some special production arrangement effectively if customer has urgent need.
9. What basis can we buy goods?
We generally offer customers prices FOB& CIF (Carriage, Insurance & Freight). The CIF includes the freight cost to your nominated sea port.
We do provide clearance of goods which needs to be handled by a local freight forwarder.
All local costs and taxes are the responsibility of the buyer. We are happy to offer advisement on shipping if required.
10. What are the payment terms?
Payment terms are negotiable and will improve for long term customers.
During the initial stages, we request 50% of tooling fee in advance with the balance payable on acceptance of samples.
Production orders can be negotiable. We prefer 50% deposit and the balance by T/T before sails. But sometimes T/T 30 days after sails would also acceptable.
11. Which currency can we buy in?
We can deal in USD / Euro currency / GBP.
12. How long does it take to ship goods from China by sea?
It takes about 5 weeks to European ports plus 1 week customs clearance, so you can get the container within 6 to 7 weeks. It takes about 2 weeks to east coast and 3 weeks to west coast US ports. All sea goods are shipped from HangZhou Port.
13. How long does it take to ship goods from China by air?
It takes about 7 days to all major destinations.
14. Can we visit the factory to conduct an audit?
Yes, you are welcome to visit our partner factory by prior agreement.
15. How do we retain client confidentiality?
We are happy to CHINAMFG Confidentiality Agreements with customers and will honor them.
16. Which languages do we do business in?
Although we do business with many countries around the world, we can only communicate effectively in Chinese English.
All information supplied should therefore be supplied in this form.
17. Is there a minimum volume of business required to conduct international purchasing?
There are no minimum volumes, but the prices of the goods, plus the fixed costs of importing makes it more economical to buy in high volumes. All potential customers will be assessed on an individual basis to determine if it appears a viable option for all parties to develop a relationship.
18. What type of parts you are specialized in?
Our business contains 2 areas,
one is for construction precast including lifting system, rigging hardware metal parts.
Another is customized metal business of quality sand castings, investment castings, lost foam castings, hot forgings, cold forgings, stampings, machined parts, injectionmolded plastics parts, etc.
19. ما نوع المعدات التي لديك؟
مكبس احتكاكي للتشكيل بالضغط، بقوة 160 طن، 300 طن، 630 طن، 1200 طن
Casting CHINAMFG of 200kg, 500kg,1000kgs, 2000kgs
Press of 63ton, 120tons
CNC Machining center
مخرطة عمودية CNC
CNC Lathe center
آلة حفر
آلة حفر
| طلب: | Machine |
|---|---|
| صلابة: | مقوى |
| Gear Position: | Internal Gear |
| Manufacturing Method: | Rolling Gear |
| Toothed Portion Shape: | Spur Gear |
| مادة: | الفولاذ المقاوم للصدأ |
| التخصيص: |
متاح
| طلب مخصص |
|---|
هل تُعد التروس الدودية مناسبة للتطبيقات ذات عزم الدوران العالي؟
تُعدّ التروس الدودية مناسبة تمامًا للتطبيقات التي تتطلب عزم دوران عالٍ. إليك شرح مفصل لأسباب ملاءمة التروس الدودية لهذه التطبيقات:
تُعرف التروس الدودية بقدرتها على توفير تخفيض كبير في السرعة ومضاعفة عزم الدوران. وهي تتكون من ترس أسطواني ملولب يُسمى الدودة، وعجلة مسننة تُسمى عجلة الدودة أو الترس الدودي. ويتيح التفاعل بين الدودة وعجلة الدودة نقل الحركة وعزم الدوران.
فيما يلي الأسباب التي تجعل التروس الدودية مناسبة للتطبيقات ذات عزم الدوران العالي:
- نسبة تخفيض التروس العالية: توفر التروس الدودية نسب تخفيض عالية، تتراوح عادةً من 20:1 إلى 300:1 أو حتى أعلى. تسمح نسبة التخفيض الكبيرة بتقليل سرعة الدوران بشكل ملحوظ مع مضاعفة عزم الدوران الناتج. وهذا ما يجعل التروس الدودية فعالة في التطبيقات التي تتطلب مستويات عالية من عزم الدوران.
- خاصية القفل الذاتي: تتميز التروس الدودية بخاصية القفل الذاتي الفريدة، مما يعني قدرتها على تثبيت موضعها ومنع دورانها العكسي دون الحاجة إلى آليات كبح إضافية. وتُوفر زاوية لولب الدودة ميزة ميكانيكية تُقاوم الدوران العكسي لعجلة الدودة، مما يُعزز خصائص القفل الذاتي الممتازة. هذه الخاصية تجعل التروس الدودية مثالية للتطبيقات التي يكون فيها تثبيت الحمل في مكانه أمرًا بالغ الأهمية، كما هو الحال في معدات الرفع والتحميل.
- تصميم متين وقوي: تُصنع التروس الدودية عادةً من مواد متينة، مثل الفولاذ أو البرونز، مما يوفر لها قوة عالية ومقاومة للتآكل. يُمكّنها هذا التصميم القوي من تحمل الأحمال الثقيلة ونقل عزم دوران كبير دون المساس بأدائها أو عمرها الافتراضي.
- مقاومة عالية للصدمات: تتميز التروس الدودية بمقاومة جيدة لأحمال الصدمات، وهي أحمال مفاجئة أو متقطعة تتجاوز ظروف التشغيل العادية. يسمح التلامس الانزلاقي بين الدودة وأسنان عجلة الدودة بامتصاص الصدمات إلى حد ما، مما يجعل التروس الدودية مناسبة للتطبيقات التي تنطوي على صدمات متكررة أو غير متوقعة ذات عزم دوران عالٍ.
- صغير الحجم وموفر للمساحة: تتميز التروس الدودية بتصميمها المدمج، مما يجعلها موفرة للمساحة ومناسبة للتطبيقات التي يكون فيها الحجم عاملاً مهماً. كما يتيح صغر حجمها سهولة دمجها في الآلات والمعدات، حتى في ظل وجود قيود مكانية.
من المهم مراعاة أنه على الرغم من تفوق التروس الدودية في التطبيقات التي تتطلب عزم دوران عالٍ، إلا أنها قد لا تكون مناسبة للتطبيقات عالية السرعة. إذ يُولّد الاحتكاك الناتج عن الانزلاق بين الدودة وعجلة الدودة احتكاكًا، مما قد يؤدي إلى توليد حرارة وانخفاض الكفاءة عند السرعات العالية. لذلك، يُفضّل استخدام التروس الدودية عادةً في التطبيقات منخفضة إلى متوسطة السرعة التي تتطلب عزم دوران عالٍ.
عند اختيار ترس دودي لتطبيق يتطلب عزم دوران عالٍ، من المهم مراعاة متطلبات عزم الدوران المحددة، وظروف التشغيل، وأي عوامل إضافية مثل السرعة والكفاءة وثبات الوضع. كما أن اختيار الحجم المناسب والتشحيم والصيانة الدورية أمور بالغة الأهمية لضمان الأداء الأمثل وطول العمر في التطبيقات التي تتطلب عزم دوران عالٍ.
Can worm gears be used in automotive applications?
Yes, worm gears can be used in certain automotive applications. Here’s a detailed explanation of their use in the automotive industry:
1. أنظمة التوجيه: Worm gears are commonly used in automotive steering systems, particularly in older vehicles. They can provide the necessary torque and precision for steering control. The self-locking feature of worm gears is advantageous in steering applications as it helps maintain the desired steering position even when external forces are applied. However, it’s important to note that many modern vehicles have transitioned to other steering mechanisms such as rack and pinion for improved efficiency and performance.
2. Window Regulators: Worm gears can be found in power window regulator systems in some vehicles. They help convert rotational motion into linear motion, allowing for the smooth and controlled movement of windows. Worm gears in window regulators are often paired with a mechanical linkage system to distribute the motion to multiple windows.
3. Convertible Top Mechanisms: In convertible vehicles, worm gears can be utilized in the mechanisms that raise and lower the convertible top. The high torque capabilities of worm gears make them suitable for these applications, as they can effectively handle the load of the top and ensure smooth and reliable operation.
4. Accessory Drives: Worm gears can be employed in accessory drives within the automotive engine compartment. They can be used to transfer power from the engine to various accessories such as water pumps, fuel pumps, and air compressors. However, it’s important to note that other power transmission mechanisms such as belts and pulleys or gear drives are more commonly used in modern automotive accessory drive systems due to their higher efficiency and compact design.
5. Limited-Slip Differentials: Worm gears can be incorporated into limited-slip differentials in some automotive applications. Limited-slip differentials distribute torque between the wheels to improve traction and stability. Worm gears can provide the necessary torque multiplication and torque biasing capabilities required for limited-slip differentials.
While worm gears can be found in these automotive applications, it’s important to consider that other power transmission mechanisms such as spur gears, bevel gears, and belt drives are more commonly used in modern automotive designs. These alternatives often offer higher efficiency, compactness, and better performance characteristics for automotive applications. Additionally, advancements in technology and the pursuit of lightweight and efficient designs have led to the adoption of alternative power transmission systems in many automotive applications.
Overall, while worm gears have a place in certain automotive applications, their use is more limited compared to other power transmission mechanisms commonly employed in the automotive industry.
Understanding Worm Gears and Their Operation
A worm gear is a type of mechanical gear that consists of a threaded screw-like component (called the worm) and a toothed wheel (called the worm gear). It is used to transmit motion between non-intersecting and perpendicular shafts. Here’s how it works:
The worm, typically in the form of a cylindrical rod with a helical thread, meshes with the teeth of the worm gear. When the worm is rotated, its threads engage with the teeth of the worm gear, causing the gear to rotate. The direction of rotation of the worm gear is perpendicular to the axis of the worm.
One significant feature of worm gears is their ability to provide high gear reduction ratios. The number of teeth on the worm gear relative to the number of threads on the worm determines the reduction ratio. This makes worm gears suitable for applications where high torque and low-speed rotation are required.
Worm gears are commonly used in various mechanical systems, such as conveyor systems, lifts, automotive steering mechanisms, and more. Their unique design also provides a self-locking feature: when the system is not actively rotating the worm, the gear cannot easily backdrive the worm due to the angle of the threads, providing mechanical advantage and preventing reverse motion.
editor by CX 2023-09-14
