China Parallel Axis Helical Speed Reduction Gear Box Reducer helical gears advantages and disadvantages

Solution Description

Features of H. B Series Gear Units/ Gear pace reducer/ Gear Motor/ Gearbox:
1. H. B sequence gear models adopt currency structure and could transform into particular reducer according to customer’s requirement.
2. The housing of 1 size can comprehend parallel shaft, correct-angle shaft modes and horizontal, vertical mounting modes. Selection of factors is reducible The number of reducer’s manner is augmentable.
3. Seem-absorbable construction, lager surface area, huge enthusiast reduce temperature and sounds, advanced grinding process of cylindrical gear and bevel equipment enhance steadiness and transmit electrical power a lot more efficiently.
 

Housing material     HT250 Substantial energy cast iron
Equipment material 20CrMnTi
Gear Floor&hardness  HRC58°-62°
Gear core hardness HRC33°-78°
Input/Output shaft material           40Cr
Gear Machining precision Accurate grinding 6-5 grade
Heat treatment method Carburizing,Quenching etc
Efficiency up to 92%
Sound(Max) 60-67dB
Installation kind Horizontal mounting position,Vertical mounting placement
Output type Reliable shaft,Hollow shaft,hollow shaft with shrink disk,flanged shaft
Bearing manufacturer NSK,SKF,HRB,ZWZ etc
Oil seal model NAK,KSK etc
Lubricant VG220
Motor IP55, F course
Motor shaft 40Cr, Carburizing,Quenching etc
Warranty 12months
Coloration Blue,Grey

 

Characteristic edge

1.It adopts new modular layout and is convenient for mass creation combining the flexible installation web site and varied output varieties, it can satisfy the demands of most programs and set up sites 
2.It adopts various cooling and lubricating modes to make sure reliable meet heat dissipation in distinct environments, additionally, varied sealing modes can also be applied. 

Specification parameter

Set up:      horizontal and vertical
Travel Grade:      Single-stage, 2, 3 and 4-stage drives are obtainable
Output Torque:      3~900kNm
Generate ratio:      1.25 ~450
Effectiveness:      Single-phase ninety eight%, 2-stage ninety six%, 3-stage ninety four%, 4-stage ninety two%

Industrial Application 
Power Plant Equipment 
Metallurgical Industry 
Metallic Forming Machinery 
Petrochemical Industry 
Mining Machine 
Hoisting Machinery 
Development Industry 
Environmental Security Industry 
Cable Industry 
Meals Machinery 

Certificates
Handed ” ISO 9001 Worldwide Top quality Method Certification”,”Europe CE Certification”, ” Swiss SGS Certificate”,”Large-tech business certification of ZheJiang metropolis”,”Superb efficiency management enterprise of ZheJiang metropolis”,and so on.
FAQ 
one. Q: Can you make as for each custom made drawing? 
A: Indeed, we provide tailored service for clients. 
2. Q: Are you a factory or investing firm? 
A. We are producer in ZheJiang China. 
three. Q: What is your MOQ? 
A: A single piece. 
four. Q: What is your generation time? 
A: 7-15 working days right after obtaining payment. 
5. Q: What is your payment phrases? 
A: T/T, thirty% payment in advance, 70% equilibrium payment ought to be paid just before delivery. 
six. Q: What’s your package deal? 
A: In picket box packaging. 

ZheJiang EASTWELL Equipment Reducer Co.,Ltd., former a joint undertaking invested by is a ZheJiang EAST PUMP Group and Effectively Business of The us.We are specialist company of the gear reducers and specialize in the gear reducers location in China for twenty a long time. EASTWELL has outstanding R&D staff,best-ranking manufacturing and examination gear.So we have the powerful energy in the developing and manufacturing the requirements sort as properly as the tailored type gear reducer for our consumers.

US $1,000-70,000
/ Piece
|
1 Piece

(Min. Order)

###

Application: Machinery
Function: Change Drive Torque, Speed Changing, Speed Reduction
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Three-Step
Type: Helical Gear

###

Customization:

###

Housing material     HT250 High strength cast iron
Gear material 20CrMnTi
Gear Surface&hardness  HRC58°-62°
Gear core hardness HRC33°-78°
Input/Output shaft material           40Cr
Gear Machining precision Accurate grinding 6-5 grade
Heat treatment Carburizing,Quenching etc
Efficiency up to 92%
Noise(Max) 60-67dB
Installation type Horizontal mounting position,Vertical mounting position
Output type Solid shaft,Hollow shaft,hollow shaft with shrink disk,flanged shaft
Bearing brand NSK,SKF,HRB,ZWZ etc
Oil seal brand NAK,KSK etc
Lubricant VG220
Motor IP55, F class
Motor shaft 40Cr, Carburizing,Quenching etc
Warranty 12months
Color Blue,Grey
US $1,000-70,000
/ Piece
|
1 Piece

(Min. Order)

###

Application: Machinery
Function: Change Drive Torque, Speed Changing, Speed Reduction
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Three-Step
Type: Helical Gear

###

Customization:

###

Housing material     HT250 High strength cast iron
Gear material 20CrMnTi
Gear Surface&hardness  HRC58°-62°
Gear core hardness HRC33°-78°
Input/Output shaft material           40Cr
Gear Machining precision Accurate grinding 6-5 grade
Heat treatment Carburizing,Quenching etc
Efficiency up to 92%
Noise(Max) 60-67dB
Installation type Horizontal mounting position,Vertical mounting position
Output type Solid shaft,Hollow shaft,hollow shaft with shrink disk,flanged shaft
Bearing brand NSK,SKF,HRB,ZWZ etc
Oil seal brand NAK,KSK etc
Lubricant VG220
Motor IP55, F class
Motor shaft 40Cr, Carburizing,Quenching etc
Warranty 12months
Color Blue,Grey

Helical Gearbox

Using a helical gearbox can greatly improve the accuracy of a machine and reduce the effects of vibration and shaft axis impact. A gearbox is a circular machine part that has teeth that mesh with other teeth. The teeth are cut or inserted and are designed to transmit speed and torque.helical gearbox

Sliding

Among the many types of gearboxes, the helical gearbox is the most commonly used gearbox. This is because the helical gearbox has a sliding contact. The contact between two gear teeth begins at the beginning of one tooth and progresses to line contact as the gear rotates.
Helical gears are cylindrical gears with teeth cut at an angle to the axis. This angle enables helical gears to capture the velocity reversal at the pitch line due to the sliding friction. This leads to a much smoother motion and less wear. Moreover, the helical gearbox is more durable and quieter than other gearboxes.
Helical gears are divided into two categories. The first group comprises of crossed-axis helical gears, commonly used in automobile engine distributor/oil pump shafts. The second group comprises of zero-helix-angle gears, which do not produce axial forces. However, they do create heat, which causes loss of efficiency.
The helical gearbox configuration is often confounded, which results in higher working costs. In addition, the helical gearbox configuration does not have the same torque/$ ratio as zero-helix angle planetary gears.
When designing gears, it is important to consider the effects of gear sliding. Sliding can lead to friction, which can cause loss of power transmission. It also leads to uneven load distribution, which decreases the loadability of the helical planetary gearbox.
In addition, the mesh stiffness of helical gears is commonly ignored by researchers. An analytical model for the mesh stiffness of helical gears has been proposed.

Axial thrust forces

Several options are available for axial thrust forces in helical gearboxes. The most obvious is to use a double helical gear to offset the force component. Another option is to use a thrust bearing with a lower load carrying capacity. This becomes a sacrificial component.
In order to transmit a force, it must be distributed along the contact line. This force is the sum of tangential, radial and axial force components. All these components must be transferred from the source to the output. This is a complex process that involves the use of gears.
The axial force component must be transferred through the gears. The resultant force is then divided into orthogonal components and divided into the thrust directions. The radial force component is from the contact point to the driven gear center.
The axial force component is also determined by the size of the gear’s pitch diameter. A larger pitch diameter results in a greater bearing moment. Similarly, a larger gear ratio will produce a higher torque transmission.
It should be noted that the axial force component is only a small part of the total force. The normal force is distributed along the contact line.
The double helical gear is also not a perfect duplicate of the herringbone gear. It has two equal halves. It is used interchangeably with the herringbone gear. It also has the same helix angle.helical gearbox

Reduced impact on the shaft axis

Increasing the helix angle of a gear pair will reduce resonance effects on the shaft axis of a helical gearbox. However, this will not reduce the overall vibration in the gearbox. In fact, it will increase the vibration. This can lead to serious fatigue faults in the drive train.
This is because the helix angle has an effect on the contact line between two teeth. As the helix angle increases, the length of the contact line decreases. In addition, it has an effect on the normal force and curvature radii of the teeth. The pressure angle also affects the curvature radii.
Helical gears have several advantages over spur gears. These advantages include: lower vibration, NVH (noise, vibration and harshness) characteristics, and smooth operation under heavy loads. They also have better torque capability. However, they produce higher friction. They also require unique approaches to control their thrust forces.
The first step in reducing resonance effects is to regulate the meshing frequency of the helical gear stage. This can be done by varying the shift factors in the gear. If the shift factors are too large, then the gear will experience resonance effects. The helix angle is also affected by the gear’s shift factors. It is therefore important to control the gear’s geometry in order to reduce the resonance effects.
Next, the effects of the web structure and rim thickness on the root stress of the gear are examined. These are measured by strain gage. The results indicate that the maximum root stress is obtained when the worst meshing position is reached.

Quieter operation

Compared to spur gears, helical gears are much quieter in operation. This is due to their larger teeth. Aside from this, they have a higher load-carrying capacity. They also run smoother and have a higher speed capability. Helical gears are also a good substitute for spur gears.
The most significant parameter relating to noise reduction is the gear contact ratio. It ranges from below 1 to more than 10 and is determined by the number of teeth intersecting a parallel shaft line at the pith circle. It is also a good indicator of the level of noise reduction that helical gears provide.
In addition, helical gears have a lower impulse flexure than spur gears. This is because the contact point slides along the helical surface of each tooth. This also adds internal damping to the gear system.
While helical gears are less noisy than spur gears, they do have a high level of wear and tear. This can affect the performance of the gear. However, it is possible to improve the smoothness of the tooth surface by grinding. In addition, running the gears in oil can also help improve the smoothness of the tooth surface.
There are many industries that use helical gears. For example, the automotive industry uses them in their transmissions. They also are used in the agricultural industry. They are often used in heavy trucks.
Helical gears are also known to generate less heat and are quieter than other gears. They can also deliver parallel power transfers between parallel or non-parallel shafts.

Improved accuracy

Increasing the accuracy of a helical gearbox is the key to its operation and reliability. The accuracy of the gearbox is dependent on several features. Among the most important are the profile and lead. Moreover, the power requirements of a gear drive should be taken into consideration.
The profile is the most sensitive feature of a helical gear. If the profile is not symmetric, the gear will run with a noisy spur gear. In addition, the profile is also the most sensitive to lead.
A helical gearbox plays a key role in the power transmission of industrial applications. However, the heavy duty operating conditions make it susceptible to a variety of faults.
A helical gearbox’s performance depends on the accuracy of the individual gears. This is accomplished by minimizing the backlash. A common way to reduce backlash is to approach all target positions from a common direction. This approach also reduces transmission noise.
The accuracy of a helical gearbox can be improved by using a flexible electronic gearbox. This can reduce the degree of twist. Moreover, it can increase the accuracy of gear machining.
A helical gearbox with an electronic gearbox can increase the accuracy of twist compensation. It can also improve the linkage between B-axis, C-axis, and Z-axis. Moreover, the electronic gearbox will ensure the linkage relationship between Y-axis, Z-axis, and C-axis.
The accuracy of a helical Gearbox can be improved by calculating the position error of the gear train. Pitch deviation and helix angle deviation are two types of position error.helical gearbox

Reduced vibration

Using helical gearboxes can reduce vibration and noise. These gears are used in a variety of applications, including automotive transmissions. Moreover, these gears are quiet enough to operate in noise-sensitive applications.
Using CZPT software, three different gearbox housing designs are compared. The external dimensions and mass of each design are kept constant, but different quantities of longitudinal and transverse stiffeners are employed. The resulting models are then compared to experimental results. In addition, the free vibration response of these models is analyzed. The results are shown in Fig. 5.
In terms of noise reduction, the cellular model produces the lowest sound pressure level. However, the cross model produces the higher sound level. The cellular model also produces better peak to peak results.
The input-stage gear pair is the power source of the output-stage gear pair. The output-stage gear pair’s vibration is also studied. This includes a phase diagram and a frequency-domain diagram. The influence of the driving torque and the pinion’s velocity on the vibration is studied in a numerical manner. The time evolution of the normal force and the lubricant stiffness is also studied.
The input-stage pinion modification reduces the input-stage gear pair’s vibration. This reduction is achieved by adding dual bearing support to the input shaft.
China Parallel Axis Helical Speed Reduction Gear Box Reducer     helical gears advantages and disadvantagesChina Parallel Axis Helical Speed Reduction Gear Box Reducer     helical gears advantages and disadvantages
editor by czh 2023-01-06