Automobile gearbox gear failure
The failure gear is the first gear of the gearbox of the truck, which is made of the carburizing steel. […]
News
News
Gear corrugation, arris and cold deformation
The corrugation, arris and cold deformation of gears are less, and the damage seems less. They show a surface state
News
Crack analysis of 45 steel tooth blank
The 45 steel gear blank is directly roughened into a column shape with an outer diameter of φ 78mm after
News
Advantages of worm gear drive
Compared with bevel gear drive, worm gear drive has the following advantages: (1) In the case of small outline size
News
Modulation heat treatment process of 45 steel in gear manufacturing
Quenching and tempering is the double heat treatment of quenching and high temperature tempering, which aims to make the workpiece
News
Gear defect – ring gear runout out out of tolerance
Main cause The center of the inner hole of the workpiece does not coincide with the turning center of the
News
The gears produce pitting, peeling and the carburized layer is broken
The pitting point is a kind of fatigue defect, which occurs when small particles on the gear fall off from
News
The computer drawing method of standard spur gear profile
In gear processing, we often use the tooth profile template when checking the tooth profile. In the past, in this
News
Analysis of advantages and disadvantages of gear transmission
Gear transmission is the most common mechanical transmission in modern machines. It is a main form of transmission of machine
News
Gear defect – incorrect number of teeth
Main cause 1) Incorrect adjustment of split exchange gear 2) Wrong selection of hob 3) Incorrect workpiece blank size 4)
News
Specific analysis of gear wear
Wear is the removal of surface material from gears. It can be slow, like a scratch, or quick, like a
News
Analysis of the advantages and disadvantages of hypoid gear and spiral bevel gear
Compared with spiral bevel gear drive, hyperbolic gear drive has the following advantages: (1) In the working process, there is
News
Gear materials commonly used in gear manufacturing
Forged steel and cast steel are the common materials for gear manufacturing, followed by cast iron. In special cases, non-ferrous
News
Gear defect – abnormal tooth profile
1.Edge of tooth surface Main cause The profile error of hob is too large or the tooth splitting is powerless.
News
The common materials for gears
The common materials are forged steel, cast steel and cast iron. Forged steel: According to the hardness of tooth surface,
News
Study on the dynamic characteristics of three ring reducer
The research on the dynamic characteristics of three ring reducer starts from the experiment. These experimental studies are mainly to
News
Common faults of gears
Gear is the most commonly used mechanical transmission parts, gear failure is also a common failure of rotating equipment. According
News
The common types of gears
Parallel shaft gear (cylindrical gear) (1) Spur gear: a straight cylindrical gear whose tooth ribs are parallel to the axis.
News
The selection principle of gear material
There are many kinds of gear materials, and there are many factors to consider when selecting them. The following points
News
Cutting method of spiral bevel gear
Spiral direction: the spiral direction of the tooth is specified as: Left-handed gear: if facing the gear tooth surface, the
News
The modulation heat treatment process of 40Cr steel in gear manufacturing
Cr can increase hardenability, strength and tempering stability of steel, and has excellent mechanical properties. Cr steel shall be used
News
Modulation characteristics of gear vibration signal
The common points of frequency modulation and amplitude modulation of gear vibration signal are as follows: ① The carrier frequency
News
Classification of spiral bevel gears
Classification by pitch line of tooth surface: a. Arc tooth bevel gear: its teeth are cut with a circular end
News
Analysis of the dynamic response of three ring reducer
With the development of the research on three ring reducer, people begin to study its elastic dynamics. Without considering the
News
Advantages and disadvantages of helical gears
Advantage: The helical gear used in the helical gear reducer can be regarded as a set of cylindrical gears made
News
Lubrication of gears
Oil immersion lubrication is adopted. As it is a single-stage cylindrical gear reducer, the speed V < 12m / s,
News
The frequency modulation of gears
In addition to the influence on the vibration amplitude, the load fluctuation caused by gear load nonuniformity, gear pitch nonuniformity
News
Gear material and its selection principle
It can be seen from the failure form of the gear teeth that when designing the gear transmission, the tooth
News
Creation method of spur gear
Gear transmission is one of the most important mechanical transmission. Gear parts have the advantages of high transmission efficiency, stable
News
Advantages and disadvantages of spur gears
Spur gears are among the most common types of gears used in various mechanical systems due to their simplicity and
News
The amplitude modulation of gears
There are a lot of fault information in the modulation of gear vibration signal, so it is very important to
News
Fire safety in heat treatment of gear production
(1) Fire protection requirements for buildings of heat treatment plant: The heat treatment workshop or working section shall be set
News
The mechanical model analysis of gear
As shown in Figure 1, is the mechanical model of the gear pair, in which the gear has a certain
News
Selection of gear material
(1) General gears with light load, low speed or medium speed, small impact force and low precision are made of
News
Other components of gear vibration
There are not only meshing frequency and side frequency components in gear vibration signal, but also other vibration components. In
News
Tempering of transmission gears
Tempering is also called flame matching. A process of metal heat treatment. Reheat the quenched workpiece to a proper temperature
News
The common gear materials and heat treatment
In order to ensure the reliability of gear operation and improve its service life, gear material and its heat treatment
News
Development trend analysis of gear technology and equipment
In order to meet the requirements of gear processing industry for manufacturing accuracy, production efficiency, clean production and quality improvement,
News
Quenching of transmission gear
Quenching is to heat the alloy to the solution solution curve, keep it warm for a period of time, and
News
Function and purpose of preoxidation in gear manufacturing
Function of preoxidation The preoxidation makes the surface of the workpiece obtain a layer of dense oxide film (3Fe +
News
Common materials for gear production
The common materials for gears are 20Cr, 20CrMnTi and 18Cr2Ni4WA. (1) 20Cr It has high strength and hardenability, but poor
News
Overview of gear heat treatment
As we all know, gear is the key part of mechanical equipment, which is widely used in automobile, aircraft, tank,
News
Gear accuracy class, you need to know these places
There are 13 precision grades of gears, which are arranged from low to high by the numbers 0-12. Grade 0
News
Analysis of the effect of laser cladding on the properties of alloy elements
Laser cladding (also known as laser surfacing) refers to the process of placing the selected coating material on the cladding
News
New international standard of gear accuracy officially released in 2013
The international standard of gear accuracy is formulated by ISO Technical Committee 60 (ISO / TC60, hereinafter referred to as
News
Analysis on the development trend of domestic gear mould industry
It is reported that the domestic gear mold industry is a mixed blessing. The joy is that the domestic gear
News
What is the cause of gear damage
The main causes of gear damage can be roughly divided into: wear; pitting, peeling, carburizing layer fragmentation; fatigue; impact; corrugation,
News
Gear selection materials, accuracy and parameters
The gear is a wheel like mechanical part that transmits torque by the engagement of teeth. The gear is driven
News
Since 1953, Luoyang is the famous heavy industrial city in China.
Soviet-style architecture China’s first tractor China’s first tractor manufacturing plant Luoyang Mining Machinery Factory Industrial museum Soviet-style living area Military
News
GB / T 3480.5-2008 the first meeting of national standards project working group was held in Zhengzhou
On February 28, 2019, the first meeting of national standard revision project working group of GB / T 3480.5-2008 calculation
News
Summary of 2019 national small module gear technology seminar
This meeting is the 12th technical seminar and annual meeting of cgma in the past 12 years. The theme of
Hypoid gears require—even with low RPMs—a high-pressure oil
The offset is positive for cases 1 and 4; negative for cases 2 and 3 (Fig. 10). The spiral pinion
News
L-Hypoid Gear Design System (part 2)
6 rendering tooth. The analysis of tooth profile based on the number distribution on the direction of the face width
News
The manufacturing of hypoid gear
Hypoid gears manufactured in face hobbing process continuous-indexing or single face milling process indexing. In face milling process the blades
News
L-Hypoid Gear Design System (part 1)
1 Introduction. L-can hypoid Gear Design System design element gear tooth profile and calculate overall strength and so on. Hypoid
News
Rolling and sliding velocities of a hypoid gear set along the path of contact
The crowning seen in the ease-off results in the contact zone is located within the boundaries of the gear tooth.
News
The application of hypoid gear
Most manufactured hypoid gears carburized steel and undergo case hardening a surface hardness of 60 Rockwell C (HRC) and core