一, Product description:

1. Shaft extension type S series helical gear worm reducer has high technical content, and has a combination of helical gear and worm gear to improve the torque and efficiency of the machine. This series of products has complete specifications, wide speed range, good versatility, adapt to various installation methods, performance, safety and reliability, long service life, and implementation of international standards.
2. The surface of the body has concave and convex heat dissipation, strong vibration absorption, low temperature rise and low noise.
3. The machine has good sealing performance and strong adaptability to the working environment.
4. The machine has high transmission precision, especially suitable for working in occasions with frequent start-up. Shaft extension type S series can be connected with various types of reducers and equipped with various types of motor drives. Shaft extension type S series can be installed in the 90-degree transmission operation position.
5. The key components of the geared motor adopt high wear-resistant materials and have undergone special heat treatment. It has the characteristics of high processing precision, stable transmission, small volume bearing capacity and long service life.

6. Shaft extension type S series reducer can be equipped with various types of motors to form an electromechanical integration, which fully guarantees the quality characteristics of the products.

二, Technical Parameters:

   Power: 0.18KW ~ 22KW

   Torque: 10N·m to 4890N·m

1. Application

The reducer is mainly used in lifting, mining, general chemical, textile, light industry and other industries. Its applicable conditions are as follows:

1. Reducer gear transmission circular speed is not more than 10 meters/second;
2. The speed of the high speed shaft of the reducer shall not be greater than 1500 revolutions/min;
3. Parallel Shaft Cylindrical Gear Reducers is used for positive and negative operation;
4. Deceleration machine working environment temperature of 40 ℃ to + 40 ℃;
5. Reducer has nine transmission ratios, nine configuration types and three types of low speed shaft shaft end;
6. The transmission ratio of such reducer is: 48.57, 40.17, 31.5, 23.34, 20.49, 15.75, 12.64, 10.35, 8.23.

2. All Type

Parallel Shaft Cylindrical Gear Reducers has two stages of transmission, there are nine types of assembly, the input shaft extension is conical, the output shaft end by cylindrical (Z), gear (CA, C) a level of euclipd (cross slider) coupling (F).

3. Difference

Parallel Shaft Cylindrical Gear Reducers is involute cylindrical gear reducer, ZQ (H) type is cylindrical gear reducer, which is formed on the basis of ZQ type involute cylindrical gear reducer series. Time has proved that compared with involute gear of the same specification, circular arc gear not only has a longer service life, but also has a larger capacity, higher strength and less wear on the tooth surface.

1. Classification

Hard tooth surface gear transmission mainly include series of parallel axis and vertical axis series, parallel shaft gear reducer is according to the national standard (GBl9004-88) production, optimization design, the sankei shimbun has the international advanced level in the eighty s, it mainly includes ZDY (single stage), ZLY (grade two), ZSY (level 3) and ZFY (level 4) four series, vertical shaft reducer is according to the national standard (JB/T9002-1999) production, is used for the input shaft and output shaft is vertical arrangement of transmission device, it mainly includes DBY, DCY and DFY three series.

2. Application Range

The Hard tooth surface gear transmission shall not be more than 20 m/s. Work environment - 40 ~ 50 ℃, if lower than 0 ℃, before the start of lubricating oil should be preheated to 0 ℃ above, the speed reducer can be used in positive and negative two directions. It can be widely used in metallurgy, mining, chemical industry, building materials, lifting, transportation, textiles, paper, instruments, plastics, rubber, construction machinery, energy and other industrial sectors.

3. Characteristic

The main parameters, such as center distance and nominal transmission ratio, have been optimized and designed. Hard tooth surface gear transmission are made of high quality alloy steel through carburizing, quenching, and, tooth surface hardness up to hrc54-62. Small size, light weight, high precision, large carrying capacity, high efficiency, long life, high reliability, smooth transmission, low noise. Generally use oil pool run, natural cooling, when the thermal power can not meet, can be used for circulating oil lubrication or fan, cooling coil cooling.

The film blowing machine is mainly composed of an plastic machinery industry extruder gearbox, a machine head, a die, a cooling device, a foam stabilization frame, a herringbone plate, a traction roller, a winding device ect.

1. The extruder is mainly composed of screw, barrel feeding hopper, deceleration and High efficiency AC electric motor. The driving motor adopts electromagnetic speed regulating motor (also can be used with variable frequency motor), and the Single Screw Gear Reduction Unit is driven by the belt drive to make the screw rotate in the barrel; The plastic which melts the plastic particles of the hopper under external heating is squeezed from the die die through three-pass filtration.

2.The unit adopts advanced spiral die structure. According to the special characteristics of high pressure, low pressure, mixed material and recycled material polyethylene material, the spiral angle, the back slope angle, the fixed angle length and the die opening degree are designed. Technical parameters, selected and tested by multiple comparison tests，

3. The cooling device consists of a cooling air ring, a duct, a blower, etc.

4. The traction consists of main components such as the traction frame, the herringbone plate, the traction roller, the take-up mechanism and the traction motor.

5.The general unit is equipped with an organic group operation cabinet. The total button is connected to the main power supply to open the main switch of the AC induction 1500 rpm electric motor. The splitter switch can be used to control the fuselage and the tee, and the buttons are electrically heated. The key parts of the two sets of coils are thermocouples. Automatic temperature measurement and automatic temperature control. During normal production, the temperature can be automatically controlled to ensure stable and reliable production process.

Performance:

1. The screw adopts the most advanced alloy spraying technology. After precision machining, the hardness is higher, the corrosion resistance is better, and the service life is longer. It is 2~3 times of the life of the nitriding treatment screw;
2. The long diameter to diameter ratio of the screw is large, the plasticizing ability is strong, the temperature distribution is uniform, the temperature is controlled automatically, and the blown film has a bright and uniform product with good performance;
3. The whole new design ZLYJ single shaft plastic gearbox is compact in structure, stable in operation, single-arm structure, economical and practical, and the traction device is integrated and can be adjusted and lifted automatically;
4. Adopt advanced frequency conversion technology, high efficiency and energy saving;
5. The form of curling is various and can be arbitrarily selected.

1. The machine has stable single stage of bld cycloidal speed reducer and uniform feeding, so as to ensure uniform feeding of the whole machine;
2. The feed is evenly fed through the feeding material tube through the feeding material tube, and the feed is evenly sprinkled to the trough to avoid the spillage of the artificial feeding and save the feed;

3, saving labor, the machine is a single feeding, running 5-8 minutes (70 meters chicken house)

Composition:

1. Horizontal conveyor auger.

2, the hopper.

3. Control the electric box.
4. Walking mechanism.
5. Speed regulating motor and walking geared motor.

6, feeding auger motor.

7, feeder bracket.

Introduction

1. Small gear reduction electric motors are used in everyday life and are widely used, especially in everyday products.

2. Small gear reduction electric motors is a mechatronics product consisting of three parts: GA, GB, GE, JB series micro gear reducer, electronic governor and micro motor that can run in reverse direction. Through the different combinations of the three parts, the whole machine can obtain products with different performances.

3. The small gear reduction electric motors used in the motor is divided into: miniature AC motor (single phase: 220V, 110V; three phase: 220V, 380V), ZYT (SZ) series micro DC motor (frame number: 55~110; voltage: 12V, 24V , 48V, 110V, 220V), WZJ series brushless DC motor. The governor is divided into: TDK series AC electronic governor; WK, SK series DC stepless governor. The speed regulation is stable, there is no creeping phenomenon, and the frequent forward and reverse rotation of the motor can be ensured.

4. Small gear reduction electric motors is widely used in all kinds of small light industrial machinery, packaging, food, textile, make-up (beauty) machinery, printing equipment, instruments due to its wide range of deceleration, high energy index, easy to use and reliable operation. And a variety of automation equipment, production lines.

Introduction

1.The irrigation system refers to the entire facility of the irrigation project.Rivers, lakes, reservoirs and wells can be used as sprinkler irrigation sources, but they must be constructed with corresponding water source projects, such as pumping stations,worm gear motor geared electric motors and ancillary facilities, water regulating tanks, etc. For experiments, find sinks that meet the requirements.

2.Sprinkler irrigation can use a variety of agricultural pumps, such as centrifugal pumps, submersible pumps, deep well pumps and so on. A worm gear motor geared electric motors is often used as a power source for a pump in places where power is supplied.

Sizes: 025 -030-040-050-063-075-090-105-110-130-150
Available versions: NMRV - fitted for motor coupling, NRV - with input shaft, NMRL - with torque limiter
Power up to 15 kW
Patented case with modern design
Aluminuium units are supplied complete with synthetic oil which allows universal position mounting, with no need to modify lubricant quantity. Moreover units without plugs reduce the risk of oil oxidation and contamination.
Reduction ratios between 5 and 100
Max torque 1.550 Nm and admissible radial loads max 16.500 N
Cases up to 105 in die-cast aluminium alloy and over 110 in G200 grey cast iron
Worm wheel: bronze Cu Sn12 Ni2 (UNI7013-10)
Ground worm profile ZI (UNI4760)
Excellent mechanical strength while being especially lightweight

Load capacity calculated to BS721-83 and verified according to Niemann
Size 030 and over are painted with RAL 5010 blue epoxy-polyester powder in accordind to DIN 1843
PC, pre-stage reduction units available for motor power up to 2,2kW and size up to 090
Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRV+NRV, PC+NMRV
Automated manufacturing process not only guaratees fast service, but also reliability and quality
Options: torque arm, output flange, output shaft kit, cover, double extention high speed shaft

Sizes: 025 -030-040-050-063-075-090-105-110-130-150
Available versions: NMRV - fitted for motor coupling, NRV - with input shaft, NMRL - with torque limiter
Power up to 15 kW
Patented case with modern design
Aluminuium units are supplied complete with synthetic oil which allows universal position mounting, with no need to modify lubricant quantity. Moreover units without plugs reduce the risk of oil oxidation and contamination.
Reduction ratios between 5 and 100
Max torque 1.550 Nm and admissible radial loads max 16.500 N
Cases up to 105 in die-cast aluminium alloy and over 110 in G200 grey cast iron
Worm wheel: bronze Cu Sn12 Ni2 (UNI7013-10)
Ground worm profile ZI (UNI4760)
Excellent mechanical strength while being especially lightweight

Load capacity calculated to BS721-83 and verified according to Niemann
Size 030 and over are painted with RAL 5010 blue epoxy-polyester powder in accordind to DIN 1843
PC, pre-stage reduction units available for motor power up to 2,2kW and size up to 090
Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRV+NRV, PC+NMRV
Automated manufacturing process not only guaratees fast service, but also reliability and quality
Options: torque arm, output flange, output shaft kit, cover, double extention high speed shaft

November 1, in the effort with group purchasing and quality assurance departments, under the careful development and manufacturing of a lean manufacturing technology sector, the country's two new revision ZLYJ173 Mao and ZLYJ200 prototype, once developed. Older contrast, the new revision of these two ZLYJ series gear reducers products, mainly significant breakthrough following five aspects -
First, the original wooden box mold mold, all replaced by a new design of the mold. Mold has three advantages: 1, casting surface is more smooth, flat, you can spray paint directly on the surface, eliminating the old original box Pihui milling and grinding processes, not only shorten the processing cycle, and improve efficiency, but also cost savings. 2 directly wooden mold easily exclude defective situation legacy foundry sand in the box in the corner. 3, according to the mechanical requirements, the new design is more compact shape, adding many rounded design, better thermal performance, while products are also more in line with the requirements of modern industry artistic taste.
Second, the internal high-speed shaft bearing original tapered roller bearings, replace all self-aligning roller bearings. Aligning bearings have three advantages: 1, self-aligning bearing operation more stable, longer life. 2-aligning bearing on the accuracy of axial clearance adjustment, requiring significantly lower and easier to mass production. 3, self-aligning bearing, even when the axial movement is generated, not like, like the formation of a conical taper bearing exercise, causing fatal injuries to seal. Thus, the lower the probability of oil spills.
Third, through technological innovation, high-speed level labyrinth seal cover method, a single seal structure, compared to the old conventional double seal structure, not only reduces the probability of oil spills, but also cost savings.
4. All ZLYJ225 following models, the combination of surface screws from the original studs, replace the unified hex screws. Hexagon has three advantages: 1, hex screw stud directly ruled out opening and closing boxes difficult and fragile and screw nut length protruding level of inconsistency, the disadvantage intractable. 2, the appearance of a more unified appearance, assembly efficiency improved significantly. 3, some screw models, with other GM models, reducing the material type, easier purchasing and inventory control.
Five, after a new optimized design technology sector, external lubrication pipes have such three advantages: 1, more uniform appearance of lines, modular, to eliminate the appearance of older products are not unified, greater randomness shortcomings. 2, reducing the technical requirements for piping layout, making it simple, simple, and easier to operate. 3, small machines increases the external piping type small filtering equipment, so cleaning and maintenance, easier, simpler, and improved lubrication conditions, extending the life of the equipment.

Attention:

      ◇ Cut off and prevent (by a warning tag, etc.) the re-connection of power supply to the motor before installing the couplings.

      ◇ Striking by hammer or other similar tools is not allowed when mounting the couplings and small gears onto the shaft end.

      ◇ Ensure the correct tension of belt when installing belt wheel.

              ◇ Do not install or uninstall the screw by force in respect of the output part.

VII. Fault Analysis and Solutions

I. Introduction
ZLYJ reducers are a kind of high-precision rigid gear assembly specially designed for the single-screw plastic/rubber extruder. Taking the JB/T 8853-2001 Cylindrical Gear Reducer as a reference for design, the products applies the high-strength low-carbon alloy steel for gears and gear shaft, with tooth flank carbureted, quenched and ground, to meet the gear precision at Level 6 (GB/T 10095) and hardness of tooth flank HRC54~62. A huge thrust bearing is mounted on the front of the output shaft to bear the thrust from the screw.

II. Use Scope
 The input rotation of prime mover shall be ≤ 1500 rpm.
 The peripheral speed of gear drive shall be ≤ 20m/s.
 The working ambient temperature shall be within -40℃~45℃. Preheat the lubricating oil to above 0℃ or choose the low temperature lubricating oil when the ambient temperature is below 0℃.

Note:
 Rotation is available both forwards and backwards. However, the high-speed shaft of some types of reducers has a single-way oil pump directing as defaulted to the output shaft which rotates clockwise.

III. Reducer Types
Product nameplates: When delivered, all reducers are attached with nameplates to specify the type, capability, production date, ex-factory number and other features for the purpose of maintenance, which shall not be removed at random.
Nameplate explanation:

Recently, from the year 2013 standard committee cyclo gear reducer standard triage was informed Cycloid Drive Part 1 Basic terminology GB / T10107.1--2012, Cycloid Drive Part 2 illustrates a method GB /T10107.2--2012, Cycloid Drive Part 1 Symbols of geometrical GB / T10107.3--2012 three new national standards and other gear, Publicizing officially released at the meeting. The meeting will also review by the cycloidal reducer, the newly revised standard 11 CVT gearbox, worm gear and test methods to detect and five standard method; Mechanical Science Research Institute Certification Center Jinzhu Ren made About EMS / OHSMS24001 / 28001-2011 standard Publicizing; Scientific Research Institute of China China Industrial Productivity Promotion Center Jinwu Wang, director of the current slowdown in the industry standard status quo and revision of standards explained; Standardization Administration of China Mechanical Science Research Institute Director at the road by the forest significance and the role of standardization in the national production, made an important speech.
In addition, the meeting identified 2014 annual work plan: 1. Call GB, line marked project proposals for standard age more than five years of standard revise, improve standards of level, a joint venture to study and explore reducer standard upgrade gradually to improve the technical level and quality of products to the world level; 2, organized and completed six industry standards revision; 3, the organization completed an industry standard-setting work, and so on.
At the meeting, the machinery industry by gearbox standard committee said it would strive to provide more services in product standards and product quality improvement, etc., to advance the cause of our country by gearbox standardized by leaps and bounds, creating standardization situation, and make greater contribution.
 
Attachment: 2013 standards by 11 standard committee is triage planet cone ring CVT, mechanical transmission test methods, multi-disc CVT, continuously variable transmission cone ring disc, cycloid reducer double cycloid reducer, cycloid reducer carrying capacity and transmission efficiency measurement method, cycloid reducer Determination of cleanliness, cycloid reducer temperature measurement method, cycloid Noise measurement method, WP series worm gear reducer; by five methodological standards in 2013 marked the Mixed Commission is cycloid reducer carrying capacity and transmission efficiency measurement method, cycloid reducer cleanliness measurement method cycloid reducer temperature measurement method, machine noise measurement method, mechanical CVT test methods cycloid.

Characteristic: This series of reducers are widely used for pitch & yaw function in wind power facility and swing function in engineering machinery.The reducers have characteristics as low noise,high capability of resisting strikes, compact sizes,long life etc.Both electric motor and hydraulic motor are available for selection by considering the users’ working system. And the output opinion is also customized for different usage.

Flange mounted
Output shaft: splined or with integral pinion
Rugged construction
High torque capacity
Output shafts supported by heavy duty bearings
Applicable AC motors
Compact motors and brake motors
IEC motors and brake motors
Main Brake Motor Features
DC and AC type
Main Motor Options
Thermistors and thermostates sensor

With the rapidly changing world economy by the international economic situation, the domestic economy into the new normal. And as China's construction machinery industry basis, has been a four-year downturn. Overcapacity, insufficient market demand persists. In this market environment, "along the way" strategy proposed like a panacea, into the long-sluggish construction machinery industry.
In construction and along the domestic construction, machinery as a necessity in the process of roads, railways, airports and other infrastructure, and become an indispensable machinery. Excavators, loaders, bulldozers and other machinery products are in a big demand and will be the direct beneficiaries of the infrastructure. Engineering machinery industry began to take along all the way to the east, the momentum out to sea. Then, on the way to the sea of mechanical engineering, what are the difficulties and challenges?

On June 18, 2015, Liugong global R & D center was officially inaugurated and National Engineering Research Center for earthmoving machinery listing ceremony was held in Guangxi Liugong. It not only enhances Liugong research and development, but also will become an important milestone in the development history of Liugong. Zengguangan, who isChairman of Liugong, said that in Liugong building and investment will be without any slowdown and hesitation. Because they know that establish R & D center is not only a matter of the future of the core competitiveness of enterprises, but also related to the China's construction machinery industry morale.

Liugong's initiative is a microcosm of the whole construction machinery. As technology advances and innovative technology industry, there is a a huge progress in product development and manufacturing, from relying on technology imports to absorbed into a completely independent technological innovation, China's manufacturing industry has been rapid growed. Data shows that main share in the major overseas markets continued to rise, such as that the United States imports from China accounting for construction machinery increased from 10.08 percent in 2012 to 12.02 percent and the Asian market grew from 43% to 47% and the African market from 12% to 15%.

Studies have shown that, as in Zoomlion, Sany, XCMG, Liugong who are the construction machinery leader in technology research and development has always maintained the attitude of the times of business, have a good export performance. This is also from the side, excess capacity is relative, continuous technological innovation, to make technology products with core competitiveness, will not excess capacity.

According to the United Arab Emirates media, Abu Dhabi will joint venture with two Japanese industrial companies, The Senaat steel companies JFE and The Marubeni-Itochu to build the AlGharbia Steel Plant. With a total investment of 1.1 billion dirhams (US $ 300 million), Senaat accounts for 51% of the shares and the other two Japan companies accounts for 49% of the shares. AlGharbia Steel Plant is located in Abu Dhabi caliph industrial zone, which is expected to be finished in 2018. The annual output will be 240,000 tons, of which 40% will be exported to the country around.

As been asked about the current market situation, Senaat Daheri who is the person in charge of the company's operations, said that Steel Plant construction is based on long-term considerations, and has studied the market supplying and demand. In the Middle East, one million tons of steel is imported annually. The vice president Japan JFE Steel, said the production of Gulf oil and gas is still strong, due to the transportation needs of the oil and gas, steel demand will grow steadily.

Senaat, wholly owned by the Abu Dhabi government, whose affiliated companies, including the UAE steel, aluminum Tavira, Arkan, AlFoah so on.

The main disadvantage is that they helical gear is vibration. Whether it is due to the design, manufacture or deformation, etc., at the same time along the entire tooth surface may occur some changes involute shape. This will lead to a regular, once per tooth incentives, it is often very strong. The resulting vibration caused both large load on the gear, and cause noise. Another negative point is that the contact time, and sometimes additional strength by two pairs of meshing obtained and can not be used, because the stress is circulating in the situation of a single tooth meshing defined.

Helical gears can be seen as a group of gear misalignment sheet should be placed into the cylindrical gear, so that each piece is touching a different part of the tooth profile, resulting in the role of the compensation of each sheet gear error, the compensation due to the wheel elastic teeth and is very effective, and thus come to such a result, the error is within 10mm of teeth can make the error from the average effect, which under load conditions, can such error is within 1mm teeth as running smoothly. Because in any transient, about half the time (assuming the coincidence of about 1.5) will have two teeth mesh, which brings additional benefits in terms of strength. Therefore, the stress can be established in 1.5 times the tooth width, rather than a tooth width of the base.

Manufacturing and assembly spur a lot of flakes is both difficult and uneconomical, and therefore manufactured integral gear teeth along the helical direction of the gear. Helical gear is not as straight, it will lead to undesirable axial force. But the benefits in terms of vibration and strength far better than the disadvantage caused by the axial thrust and a slight increase in manufacturing costs brought. So use helical gear rather than straight gear reducer such as the manufacture of four series:. R series coaxial helical gear reducer, K series of spiral bevel gear reducer, S series helical worm gear reducer, F series parallel shaft helical gear reducer Note 1: What is a spur gear: Spur is parallel to the shaft of the gear teeth. We will only discuss the parallel shaft gear theory, therefore, any money perpendicular to a cross section of two gear shaft are identical.