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 What is Reduction Gearbox?How to Select The Suitable Reducer?

What is Reduction Gearbox?How to Select The Suitable Reducer?

Introduction:

Reduction gearbox has widely used in the field of industrial control equipment. It means a gearbox internal by the gear drive, worm drive, gear – worm drive. And the gearbox often used as a reduction gear between the prime mover and the working machine. It plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator. and that is widely used in modern machinery.

What is a Reduction Gearbox?

A reduction gearbox is a power transmission device. that uses gears of different sizes to form a gearbox. that connects a motor to a machine to reduce the number of revolutions of the motor and get a larger torque. Generally used for low-speed and high-torque transmission equipment. and that is a power transmission mechanism to uses the speed converter of gears. to decelerate the motor’s rotation number to the desired rotation number. at the same time to get a larger torque. So, the reduction gearbox is a relatively precise machinery. the motor, internal combustion engine, or other high-speed running power. through the reduction gearbox on the input shaft of the gear. with a small number of teeth meshed with the output shaft of the large gear to deceleration.

The Working Principle of Reduction Gearbox

Reduction gearbox has widely used in the field of industrial control equipment. A reduction gearbox operates by using a gear ratio. To reduce the rotational speed of an input shaft while increasing the torque output. This allows it to adapt the power characteristics. To meet the requirements of various mechanical systems and applications.

working Principle reduction gearbox

Why Should You Choose to Use a Reduction Gearbox?

The choice to use a reduction gearbox influenced by the need. to adjust speed and torque, match components, And overcome space constraints. improve efficiency, control direction, reduce noise, and enhance precision. ensure safety, and prolong the life of machinery. These factors make reduction gearboxes a valuable component in a wide range.

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The Benefits of Using Reduction Gearboxes

The choice to use a reduction gearbox influenced by the need. to adjust speed and torque, match components, And overcome space constraints. improve efficiency, control direction, reduce noise, and enhance precision. ensure safety, and prolong the life of machinery. These factors make reduction gearboxes a valuable component in a wide range.

cost reduction

Cost reduction

In general, the price of the engine is significantly more than that of the transmission. The torque increased by a reduction gearbox, which is comparable to raising the motor’s power. so a motor with less power can be utilized with a reduction gearbox to produce the required output power. Due to the use of a motor with a lower output power, the cost of the setup can be greatly lowered.

protect

Protecting the motor

The reduction gearbox installed between the motor and the mechanical equipment. and that intended to withstand high torque during operation. If there is too much load, the gearbox, which protects the motor . Simultaneously, the cost of repairing or replacing the gearbox is quite low, which can cut maintenance costs.

energy

Energy conservation

When the motor is directly connected to the machinery and equipment operation. the current increases significantly to get the required torque and run at low speed. consuming more energy and heating up the motor. Furthermore, if the motor heat dissipation is inadequate, the motor is prone to burn up. As a result, the adoption of a reduction gear box can cut energy usage while avoiding motor damage.

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Types of Reduction Gearboxes

The choice to use a reduction gearbox influenced by the need. to adjust speed and torque, match components, And overcome space constraints. improve efficiency, control direction, reduce noise, and enhance precision. ensure safety, and prolong the life of machinery. These factors make reduction gearboxes a valuable component in a wide range.

types

Spur Gearbox:

Spur gears are cylindrical gears with straight teeth that mesh together. Spur gearboxes are simple and widely used for moderate-speed applications. They are efficient but can produce noise and vibration. due to the straight tooth engagement.

spur gear reduction
types

Helical Gearbox:

Helical gears have angled teeth, which results in smoother and quieter operation compared to spur gears. Helical gearboxes are commonly used in industrial applications where low noise is important.

helical gear reduction
types

Bevel Gearbox:

Bevel gears have conical-shaped teeth and used when the input and output shafts are not parallel. Bevel gearboxes are commonly used in applications. such as power transmission between shafts at right angles.

HELICAL BEVEL GEAROX
types

Worm Gearbox:

Worm gears consist of a worm screw and a worm wheel. They used for high gear reductions and provide excellent locking capabilities, preventing back-driving. Worm gearboxes are often used in applications like winches and conveyor systems.

worm gear reduction
types

Planetary Gearbox:

Planetary gearboxes consist of a central sun gear, planet gears, and an outer ring gear. They offer high torque density, precision, and excellent load distribution. They are commonly used in robotics, industrial automation, and automotive applications.

planetary gear box reduction
types

Cycloidal Gearbox:

Cycloidal gearboxes use a mechanism that incorporates pins. on the input shaft that move within lobed gears. They known for their compact design and high shock load capacity. making them suitable for heavy-duty applications.

Cyclical Gear Reducer
types

Parallel Shaft Gearbox:

Parallel shaft gearboxes have two parallel shafts. and are suitable for applications where the input and output shafts need to aligned. They come in various configurations, including helical, spur, and bevel gear designs.

parrell shaft gearbox
types

Orthogonal Shaft Gearbox:

Orthogonal shaft gearboxes, also known as right-angle gearboxes. are designed for applications where the input and output shafts intersect at a 90-degree angle. They can be helical, bevel, or worm gear type, depending on the specific requirements.

types

Hyponic Gearbox:

Hyponic gearboxes combine the advantages of hypoid and spiral bevel gears. They used in applications that need high torque and efficiency with a compact design.

types

Shaft-Mounted Gearbox:

Shaft-mounted gearboxes designed to be mounted directly onto the driven shaft. They are commonly used in conveyor systems. and other applications where space limited.

types

Inline Gearbox:

Inline gearboxes have a coaxial input and output shaft arrangement. making them suitable for applications where the input and output need to be in a straight line.

types

Cone Drive Gearbox:

Cone drive gearboxes use a unique design. that incorporates double-enveloping worm gearing for high precision and torque capacity. They used in applications that demand accuracy and reliability.

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Classifications of Reduction Gearboxes

The choice to use a reduction gearbox influenced by the need. to adjust speed and torque, match components, And overcome space constraints. improve efficiency, control direction, reduce noise, and enhance precision. ensure safety, and prolong the life of machinery. These factors make reduction gearboxes a valuable component in a wide range.

→ 1.According to the reducer structure divided into:

Cylindrical gears, helical gears. bevel gears, planetary wheel system worm gear drive. and DC reduction gear box brush geared motor and brushless geared motor. each type of reduction gear box structure and role are different.

→ 2. Divided according to the number of stages:

Single-stage gear box, multi-stage gear drive. different output power of the gearbox technology.

→ 3.According to the installation form divided into:

Parallel shaft gearbox. vertical shaft gearbox, coaxial gearbox. spread type; the installation form is different, and the application scenario is also different.

→ 4.According to power divided into:

High-power reduction gearbox, low-power reduction gearbox according to power.

→ 5.According to the material divided into:

Metal, plastic. different materials used in different scenarios. such as plastic reduction gear box is usually used in small equipment, and products, torque is small.

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How to Select the Best Reduction Gearbox?

Selecting the best reduction gearbox for your application. Involves careful consideration of various factors. to ensure that the gearbox meets your specific requirements. Here is a step-by-step guide to help you choose the right reduction gearbox:

Determine Application Requirements:

Understand the specific requirements of your application. including the desired output speed, torque, and direction of rotation. Make a list of essential criteria the gearbox must meet.

Calculate Gear Ratio:

Calculate the required gear ratio by comparing the input speed to the desired output speed. Use the formula: Gear Ratio = Input Speed / Output Speed.

Identify Torque Requirements:

Determine the torque requirements of your application. This includes both the maximum torque and continuous torque needed. Ensure the gearbox can handle the torque demands without overheating or premature wear.

Consider Efficiency:

Consider the efficiency of the gearbox. Different types of gearboxes have varying levels of efficiency. Select a gearbox that offers an acceptable balance between efficiency and other requirements.

Understand Space Constraints:

Evaluate the available space for installing the gearbox. Ensure that the selected gearbox can fit within the allocated space. and connect properly to the input and output components.

Load Characteristics:

Analyze the load characteristics of your application. Determine whether the load is constant or variable, whether it involves shock loads. and if there are any intermittent or cyclical loads. The gearbox should be able to handle the load conditions without premature wear or failure.

Direction of Rotation:

Determine whether you need the gearbox. to reverse the direction of rotation or maintain the same direction. Select a gearbox type that matches your requirements.

Consider Noise and Vibration:

If noise and vibration levels are critical for your application. choose a gearbox type that minimizes these factors. Helical or planetary gearboxes. for example, tend to produce less noise compared to spur gears.

Budget and Cost:

Consider your budget constraints. High-precision or specialized gearboxes may be more expensive. Ensure that the selected gearbox offers the best value for your investment.

Maintenance Requirements:

Evaluate the maintenance requirements of the gearbox. Some gearboxes may require more frequent maintenance than others. Choose one that aligns with your maintenance schedule and capabilities.

Application of Reduction Gearbox

  • High power reduction gearboxes mainly used in energy. petroleum, lifting, construction. ship, heavy industry, mining, port, transportation, aviation, steel, marine. water conservancy, engineering machinery, etc.
  • Small power gearboxes mainly used in electronic products, automotive drives, and robotics equipment. communication equipment, smart home equipment. household appliances, power tools, personal care tools. intelligent drive equipment. optical instruments. precision instrumentation equipment and other fields.
  • Planetary gearbox mainly used in lifting and transportation, engineering machinery. metallurgy, mining, petrochemical industry, construction machinery. light industry and textile, instrumentation, automobile. ship, precision equipment, industrial robot equipment and other industrial sectors.
  • Gear reducers mainly used in metallurgy, mining, and lifting. transportation, cement, construction. chemical, textile, printing, and dyeing. pharmaceutical and other fields.
reduction gearbox
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Reduction Gearbox Maintenance For Operation

Manufacturing of spare parts

1. Manufacturing of spare parts

The reduction gear box need to inspected and overhauled on a regular basis. If abrasion, gluing, or substantial parts, effective measures need to implemented. Spare parts need to under the standard. and following run-in and load testing, the updated spare parts need to used officially.

Examining two transmissions

2.Examining two transmissions

Regular inspections and maintenance need required for reduction gearboxes. Effective measures required since abrasion, gluing, and significant wear have been found. Before being officially used, updated spare parts should undergo load testing . and run-in testing in accordance with the standard.

Oil quantity and oil temperature

3.Oil quantity and oil temperature

Check the tightness of the bolts and the oil quantity frequently. The oil level lower than the lower scale line of the vernier scale need to replenished in time. Circulating oil lubrication should pay attention to the change of oil pressure. when the oil pressure is significantly lower, should check and clean the oil filter.

Check for heat dissipation

4.Check for heat dissipation

To make it easier for the reduction gear box to dissipate heat. maintain its external surface clean and the ventilation holes clean. If the box temperature is too high, it need to checked to see if the oil level is too high. the surrounding heat dissipation conditions are poor. the oil quality is deteriorating, the cooling water is insufficient. and the cooling effect of scale in the cooling coil is poor.

Check for oil leaks

5.Check for oil leaks

If oil leakage has found in the high-speed shaft. the oil level need to examined to ensure that it is not excessively high. If the shaft seal leaks due to aging or wear. you can inject suitable grease through the grease nipple on the cover. but if the leak is serious, the user should replace the oil seal on their own. Important note: after 8 hours of operation, the seal near a small region of infiltrated oil for not seeping oil. infiltrated oil area to increase the quality base for oil seepage. and accumulation of oil level leakage in the foundation.

Safety protection

6. Safety protection

The slewing part of the reduction gearbox with external leakage need to equipped with a protective cover. and grounded when connected to the motor or other electrical equipment. Important note: Please do not remove the test mirror cover during the operation of the reduction gearbox. to avoid personal injury caused by high temperature gear oil splashing.

Oil Change

7. Oil Change

During normal operation, metal micro-materials inevitably enter the oil . due to the continuous operation of the surface. These contaminants can shorten the life of the bearings . and lead to premature scrapping of the gear unit, so it maintained with the help of frequent oil changes.

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