Tag Archives: oxygen cylinder high pressure

China Best Sales High Pressure Different Sizes Medical Oxygen Cylinder near me shop

Product Description

High Pressure Different Sizes Medical Oxygen Cylinder

Product Description:

Water Capacity:10L
Working Pressure:150BAR
Test Pressure:250BAR
Outside Diameter:180mm
Wall Thickness:9.1mm
Cylinder Height:605mm
Empty Weight:10.1kgs/unit

Oxygen Gas Cylinder General Introduction:

1. CYY has been specializing in seamless steel cylinders designing and manufacturing for over 10 years, and has gained a good reputation at home and abroad with the support of professional and powerful team.
2. Our gas cylinders are made from superior aluminum alloy 6061 so that they features high strength (No splashing fragment in explosion), lightweight (40% lighter than steel cylinders) and corrosion resistance etc.
3. Our gas cylinders interior and exterior are treated by passivation which can make sure the gases clean, odorless and anticorrosive.
4. CYY production and management are carried out by ISO9000 Quality Management System strictly and keep a good quality.
5. There are various kinds of gas cylinders for your choice and we can also design and manufacture any new type gas cylinder according to customers’ requirement.

Company Information

Creative and Trustworthy Company:

Located in ZHangZhoug, CYY is 1 of professional suppliers of gas equipment such as gas cylinders, pumps, ASU plant, LNG plant, storage tanks and gas filling stations and affiliated equipment parts such as gas cylinder valves etc. We have over 10 years’ experience in gas industry and have received a good reputation in this field. Our products have been exported to many countries such as U.S.A. and European countries and enjoy popularity all over the world.

Quality and Security System:

We have implemented strict complete quality and secutiry control system, which ensures that each product can meet the quality and security requirement of our customers. We have been adopting the advanced science and technology to produce gas culinders and affiliated equipment since our company is established. In addition, all of our products have been strictly inspected before shipment.

We Are Reliable Partners!

We are dedicated to realizing the largest profit for both our clients and ourselves. We have been making great effort to achieve this CZPT project and sincerely hope we will have long-term partnership in the soon future!

Welcome all clients to our compy for visit!

Frequently Asked Questions:

Q1.What is the capacity of this gas cylinder?
A1.The Capacity of this gas cylinder is 10L.
Q2.What is the delivery time of this gas cylinder?
A2.The delivery of this gas cylinder is 30days after the deposit received.
Q3.What payment terms do you usually use?
A3.We accept TT, 30% as deposit and 70% before delivery.
Q4.What certification do you provide for clients?
A4.We have CE, DOT and TPED Certification of our products.

 
Cylinder Features:
 

            Medical Oxygen Cylinder Specification
Water Capacity 10L
Working Pressure  150BAR
Test Pressure 250BAR
Outside Diameter 180mm
Wall Thickness 9.1mm
Cylinder Height 605mm
Empty Weight 10.1kgs/unit
Heat Treatment Tempering
Delivery Time 30Days
Certification CE/TPED/DOT

 

Worm Gear Motors

Worm gear motors are often preferred for quieter operation because of the smooth sliding motion of the worm shaft. Unlike gear motors with teeth, which may click as the worm turns, worm gear motors can be installed in a quiet area. In this article, we will talk about the CZPT whirling process and the various types of worms available. We’ll also discuss the benefits of worm gear motors and worm wheel.
worm shaft

worm gear

In the case of a worm gear, the axial pitch of the ring pinion of the corresponding revolving worm is equal to the circular pitch of the mating revolving pinion of the worm gear. A worm with 1 start is known as a worm with a lead. This leads to a smaller worm wheel. Worms can work in tight spaces because of their small profile.
Generally, a worm gear has high efficiency, but there are a few disadvantages. Worm gears are not recommended for high-heat applications because of their high level of rubbing. A full-fluid lubricant film and the low wear level of the gear reduce friction and wear. Worm gears also have a lower wear rate than a standard gear. The worm shaft and worm gear is also more efficient than a standard gear.
The worm gear shaft is cradled within a self-aligning bearing block that is attached to the gearbox casing. The eccentric housing has radial bearings on both ends, enabling it to engage with the worm gear wheel. The drive is transferred to the worm gear shaft through bevel gears 13A, 1 fixed at the ends of the worm gear shaft and the other in the center of the cross-shaft.

worm wheel

In a worm gearbox, the pinion or worm gear is centered between a geared cylinder and a worm shaft. The worm gear shaft is supported at either end by a radial thrust bearing. A gearbox’s cross-shaft is fixed to a suitable drive means and pivotally attached to the worm wheel. The input drive is transferred to the worm gear shaft 10 through bevel gears 13A, 1 of which is fixed to the end of the worm gear shaft and the other at the centre of the cross-shaft.
Worms and worm wheels are available in several materials. The worm wheel is made of bronze alloy, aluminum, or steel. Aluminum bronze worm wheels are a good choice for high-speed applications. Cast iron worm wheels are cheap and suitable for light loads. MC nylon worm wheels are highly wear-resistant and machinable. Aluminum bronze worm wheels are available and are good for applications with severe wear conditions.
When designing a worm wheel, it is vital to determine the correct lubricant for the worm shaft and a corresponding worm wheel. A suitable lubricant should have a kinematic viscosity of 300 mm2/s and be used for worm wheel sleeve bearings. The worm wheel and worm shaft should be properly lubricated to ensure their longevity.

Multi-start worms

A multi-start worm gear screw jack combines the benefits of multiple starts with linear output speeds. The multi-start worm shaft reduces the effects of single start worms and large ratio gears. Both types of worm gears have a reversible worm that can be reversed or stopped by hand, depending on the application. The worm gear’s self-locking ability depends on the lead angle, pressure angle, and friction coefficient.
A single-start worm has a single thread running the length of its shaft. The worm advances 1 tooth per revolution. A multi-start worm has multiple threads in each of its threads. The gear reduction on a multi-start worm is equal to the number of teeth on the gear minus the number of starts on the worm shaft. In general, a multi-start worm has 2 or 3 threads.
Worm gears can be quieter than other types of gears because the worm shaft glides rather than clicking. This makes them an excellent choice for applications where noise is a concern. Worm gears can be made of softer material, making them more noise-tolerant. In addition, they can withstand shock loads. Compared to gears with toothed teeth, worm gears have a lower noise and vibration rate.
worm shaft

CZPT whirling process

The CZPT whirling process for worm shafts raises the bar for precision gear machining in small to medium production volumes. The CZPT whirling process reduces thread rolling, increases worm quality, and offers reduced cycle times. The CZPT LWN-90 whirling machine features a steel bed, programmable force tailstock, and five-axis interpolation for increased accuracy and quality.
Its 4,000-rpm, 5-kW whirling spindle produces worms and various types of screws. Its outer diameters are up to 2.5 inches, while its length is up to 20 inches. Its dry-cutting process uses a vortex tube to deliver chilled compressed air to the cutting point. Oil is also added to the mixture. The worm shafts produced are free of undercuts, reducing the amount of machining required.
Induction hardening is a process that takes advantage of the whirling process. The induction hardening process utilizes alternating current (AC) to cause eddy currents in metallic objects. The higher the frequency, the higher the surface temperature. The electrical frequency is monitored through sensors to prevent overheating. Induction heating is programmable so that only certain parts of the worm shaft will harden.

Common tangent at an arbitrary point on both surfaces of the worm wheel

A worm gear consists of 2 helical segments with a helix angle equal to 90 degrees. This shape allows the worm to rotate with more than 1 tooth per rotation. A worm’s helix angle is usually close to 90 degrees and the body length is fairly long in the axial direction. A worm gear with a lead angle g has similar properties as a screw gear with a helix angle of 90 degrees.
The axial cross section of a worm gear is not conventionally trapezoidal. Instead, the linear part of the oblique side is replaced by cycloid curves. These curves have a common tangent near the pitch line. The worm wheel is then formed by gear cutting, resulting in a gear with 2 meshing surfaces. This worm gear can rotate at high speeds and still operate quietly.
A worm wheel with a cycloid pitch is a more efficient worm gear. It reduces friction between the worm and the gear, resulting in greater durability, improved operating efficiency, and reduced noise. This pitch line also helps the worm wheel engage more evenly and smoothly. Moreover, it prevents interference with their appearance. It also makes worm wheel and gear engagement smoother.
worm shaft

Calculation of worm shaft deflection

There are several methods for calculating worm shaft deflection, and each method has its own set of disadvantages. These commonly used methods provide good approximations but are inadequate for determining the actual worm shaft deflection. For example, these methods do not account for the geometric modifications to the worm, such as its helical winding of teeth. Furthermore, they overestimate the stiffening effect of the gearing. Hence, efficient thin worm shaft designs require other approaches.
Fortunately, several methods exist to determine the maximum worm shaft deflection. These methods use the finite element method, and include boundary conditions and parameter calculations. Here, we look at a couple of methods. The first method, DIN 3996, calculates the maximum worm shaft deflection based on the test results, while the second one, AGMA 6022, uses the root diameter of the worm as the equivalent bending diameter.
The second method focuses on the basic parameters of worm gearing. We’ll take a closer look at each. We’ll examine worm gearing teeth and the geometric factors that influence them. Commonly, the range of worm gearing teeth is 1 to four, but it can be as large as twelve. Choosing the teeth should depend on optimization requirements, including efficiency and weight. For example, if a worm gearing needs to be smaller than the previous model, then a small number of teeth will suffice.

China Best Sales High Pressure Different Sizes Medical Oxygen Cylinder     near me shop China Best Sales High Pressure Different Sizes Medical Oxygen Cylinder     near me shop

China Professional DOT-3AA High Pressure Industry Oxygen Cylinder with Great quality

Product Description

DOT-3AA High Pressure Industry Oxygen Cylinder

Product Description:
 
1.Our gas cylinders are made from superior  steel 37Mn, 34CrMo4 and 30CrMo so that they features high strength, lightweight and corrosion resistance etc.

2.Our gas cylinders interior and exterior are treated by passivation which can make sure the gases clean, odorless and anticorrosive.

3.There are various kinds of gas cylinders for your choice and we can also design and manufacture any non-standard gas cylinder according to customers’ requirement. 
Gas Cylinder General Introduction: 

1. CYY has been specializing in seamless steel cylinders designing and manufacturing for over 10 years, and has gained a good reputation at home and abroad with the support of professional and powerful team.
2. Our gas cylinders are made from superior aluminum alloy 6061 so that they features high strength (No splashing fragment in explosion), lightweight (40% lighter than steel cylinders) and corrosion resistance etc.
3. Our gas cylinders interior and exterior are treated by passivation which can make sure the gases clean, odorless and anticorrosive.
4. CYY production and management are carried out by ISO9000 Quality Management System strictly and keep a good quality.
5. There are various kinds of gas cylinders for your choice and we can also design and manufacture any new type gas cylinder according to customers’ requirement.

Company Information:

1. CYY Energy is professional cylinder, storage tank, pump, air separation plant, LNG plant, cryogenic storage system and gas relevant equipments supplier. We provide the best service obsess over customer’s demand. We believe our purpose is to create value for the customer. CYY Energy has advanced technical design ability, mature project management system, consummate and close-in after-sales service. Our production is widely used in steel, metallurgy, oil, chemical industry, machinery, environmental protection, electronic industry, medicine etc. So far, we have successfully delivered our equipments to all around the China, South-East Asia, Middle East, South America and Latin America. We have fostered a good company image all around the world.

2. Our products including CNG steel cylinder for vehicle, High pressure seamless steel gas cylinders, Fire-fighting cylinders, Accumulator shell and other cylinder products. The high pressure seamless steel gas cylinder can produced according to the standard such as ISO11439, ISO9809, JIS B8241, NZS5454, EN1964, DOT3AA, IS7285,GB17258,GB5099 and so on. CYY’s products serve a wide application in automotive, chemical industries, firefighting, petro industries, energy, metallurgy, electronics, aerospace, nuclear energy and scientific research institute.

3. CYY has equipped with most advanced 2 pipe production lines with strongly technology, advance equipment and complete means on inspection. Our company can produce the max outside diameter of the pipe is 406mm. the annually capacity of CYY can be more than 350,000 cylinders and it will reach more than 1,000,000 cylinders after the new 5 production lines have been finished

4. CYY production and management are carried out by ISO9000 Quality Management System strictly and keep a good quality.

5. There are various kinds of gas cylinders for your choice and we can also design and manufacture any new type gas cylinder according to customers’ requirement.

CYY Mission:

Supply the best Cryogenic Equipment and the relative services according to the customer’s needs In the global market, which create famous brand for customers and keep the healthy development of the company and value added.
 

Service Positioning:

To challenge convention, meet market, perfect service and improve quality, CYY always places client supreme, and pursues service quality by implementing pre-sale service, during-sales service together with self-examination.

Welcome all clients to our company for visit!

Frequently Asked Questions:

Q1.What is the capacity of this gas cylinder?
A1.The Capacity of this gas cylinder is 40L. And we can also supply seamless steel gas cylinder with capacity from 3L to 60L.

Q2.What is the delivery time of this gas cylinder?
A2.The delivery of this gas cylinder is 30days after the deposit received.

Q3.What payment terms do you usually use?
A3.We accept TT, 30% as deposit and 70% before delivery.

Q4.What certification do you provide for clients?
A4.We have ASME, CE, DOT,TUV and TPED Certification of our products.

  Features:
 

                                                                     Industrial Steel Oxygen Gas Cylinder
  Water Capacity  40L
 Gas O2 ,CO2, N2, H2
  Service Pressure  200bar
 Test Pressure  300bar
 Cylinder Weight  52kg
 Outside Diameter  204mm
 Wall Thickness  5.2mm
 Certification  ISO/DOT/TPED/CE/TC
 Place of Origin  ZHangZhoug, China
 Brand Name  CYY

Products Pictures:

Loading Pictures:

 

Stiffness and Torsional Vibration of Spline-Couplings

In this paper, we describe some basic characteristics of spline-coupling and examine its torsional vibration behavior. We also explore the effect of spline misalignment on rotor-spline coupling. These results will assist in the design of improved spline-coupling systems for various applications. The results are presented in Table 1.
splineshaft

Stiffness of spline-coupling

The stiffness of a spline-coupling is a function of the meshing force between the splines in a rotor-spline coupling system and the static vibration displacement. The meshing force depends on the coupling parameters such as the transmitting torque and the spline thickness. It increases nonlinearly with the spline thickness.
A simplified spline-coupling model can be used to evaluate the load distribution of splines under vibration and transient loads. The axle spline sleeve is displaced a z-direction and a resistance moment T is applied to the outer face of the sleeve. This simple model can satisfy a wide range of engineering requirements but may suffer from complex loading conditions. Its asymmetric clearance may affect its engagement behavior and stress distribution patterns.
The results of the simulations show that the maximum vibration acceleration in both Figures 10 and 22 was 3.03 g/s. This results indicate that a misalignment in the circumferential direction increases the instantaneous impact. Asymmetry in the coupling geometry is also found in the meshing. The right-side spline’s teeth mesh tightly while those on the left side are misaligned.
Considering the spline-coupling geometry, a semi-analytical model is used to compute stiffness. This model is a simplified form of a classical spline-coupling model, with submatrices defining the shape and stiffness of the joint. As the design clearance is a known value, the stiffness of a spline-coupling system can be analyzed using the same formula.
The results of the simulations also show that the spline-coupling system can be modeled using MASTA, a high-level commercial CAE tool for transmission analysis. In this case, the spline segments were modeled as a series of spline segments with variable stiffness, which was calculated based on the initial gap between spline teeth. Then, the spline segments were modelled as a series of splines of increasing stiffness, accounting for different manufacturing variations. The resulting analysis of the spline-coupling geometry is compared to those of the finite-element approach.
Despite the high stiffness of a spline-coupling system, the contact status of the contact surfaces often changes. In addition, spline coupling affects the lateral vibration and deformation of the rotor. However, stiffness nonlinearity is not well studied in splined rotors because of the lack of a fully analytical model.
splineshaft

Characteristics of spline-coupling

The study of spline-coupling involves a number of design factors. These include weight, materials, and performance requirements. Weight is particularly important in the aeronautics field. Weight is often an issue for design engineers because materials have varying dimensional stability, weight, and durability. Additionally, space constraints and other configuration restrictions may require the use of spline-couplings in certain applications.
The main parameters to consider for any spline-coupling design are the maximum principal stress, the maldistribution factor, and the maximum tooth-bearing stress. The magnitude of each of these parameters must be smaller than or equal to the external spline diameter, in order to provide stability. The outer diameter of the spline must be at least 4 inches larger than the inner diameter of the spline.
Once the physical design is validated, the spline coupling knowledge base is created. This model is pre-programmed and stores the design parameter signals, including performance and manufacturing constraints. It then compares the parameter values to the design rule signals, and constructs a geometric representation of the spline coupling. A visual model is created from the input signals, and can be manipulated by changing different parameters and specifications.
The stiffness of a spline joint is another important parameter for determining the spline-coupling stiffness. The stiffness distribution of the spline joint affects the rotor’s lateral vibration and deformation. A finite element method is a useful technique for obtaining lateral stiffness of spline joints. This method involves many mesh refinements and requires a high computational cost.
The diameter of the spline-coupling must be large enough to transmit the torque. A spline with a larger diameter may have greater torque-transmitting capacity because it has a smaller circumference. However, the larger diameter of a spline is thinner than the shaft, and the latter may be more suitable if the torque is spread over a greater number of teeth.
Spline-couplings are classified according to their tooth profile along the axial and radial directions. The radial and axial tooth profiles affect the component’s behavior and wear damage. Splines with a crowned tooth profile are prone to angular misalignment. Typically, these spline-couplings are oversized to ensure durability and safety.

Stiffness of spline-coupling in torsional vibration analysis

This article presents a general framework for the study of torsional vibration caused by the stiffness of spline-couplings in aero-engines. It is based on a previous study on spline-couplings. It is characterized by the following 3 factors: bending stiffness, total flexibility, and tangential stiffness. The first criterion is the equivalent diameter of external and internal splines. Both the spline-coupling stiffness and the displacement of splines are evaluated by using the derivative of the total flexibility.
The stiffness of a spline joint can vary based on the distribution of load along the spline. Variables affecting the stiffness of spline joints include the torque level, tooth indexing errors, and misalignment. To explore the effects of these variables, an analytical formula is developed. The method is applicable for various kinds of spline joints, such as splines with multiple components.
Despite the difficulty of calculating spline-coupling stiffness, it is possible to model the contact between the teeth of the shaft and the hub using an analytical approach. This approach helps in determining key magnitudes of coupling operation such as contact peak pressures, reaction moments, and angular momentum. This approach allows for accurate results for spline-couplings and is suitable for both torsional vibration and structural vibration analysis.
The stiffness of spline-coupling is commonly assumed to be rigid in dynamic models. However, various dynamic phenomena associated with spline joints must be captured in high-fidelity drivetrain models. To accomplish this, a general analytical stiffness formulation is proposed based on a semi-analytical spline load distribution model. The resulting stiffness matrix contains radial and tilting stiffness values as well as torsional stiffness. The analysis is further simplified with the blockwise inversion method.
It is essential to consider the torsional vibration of a power transmission system before selecting the coupling. An accurate analysis of torsional vibration is crucial for coupling safety. This article also discusses case studies of spline shaft wear and torsionally-induced failures. The discussion will conclude with the development of a robust and efficient method to simulate these problems in real-life scenarios.
splineshaft

Effect of spline misalignment on rotor-spline coupling

In this study, the effect of spline misalignment in rotor-spline coupling is investigated. The stability boundary and mechanism of rotor instability are analyzed. We find that the meshing force of a misaligned spline coupling increases nonlinearly with spline thickness. The results demonstrate that the misalignment is responsible for the instability of the rotor-spline coupling system.
An intentional spline misalignment is introduced to achieve an interference fit and zero backlash condition. This leads to uneven load distribution among the spline teeth. A further spline misalignment of 50um can result in rotor-spline coupling failure. The maximum tensile root stress shifted to the left under this condition.
Positive spline misalignment increases the gear mesh misalignment. Conversely, negative spline misalignment has no effect. The right-handed spline misalignment is opposite to the helix hand. The high contact area is moved from the center to the left side. In both cases, gear mesh is misaligned due to deflection and tilting of the gear under load.
This variation of the tooth surface is measured as the change in clearance in the transverse plain. The radial and axial clearance values are the same, while the difference between the 2 is less. In addition to the frictional force, the axial clearance of the splines is the same, which increases the gear mesh misalignment. Hence, the same procedure can be used to determine the frictional force of a rotor-spline coupling.
Gear mesh misalignment influences spline-rotor coupling performance. This misalignment changes the distribution of the gear mesh and alters contact and bending stresses. Therefore, it is essential to understand the effects of misalignment in spline couplings. Using a simplified system of helical gear pair, Hong et al. examined the load distribution along the tooth interface of the spline. This misalignment caused the flank contact pattern to change. The misaligned teeth exhibited deflection under load and developed a tilting moment on the gear.
The effect of spline misalignment in rotor-spline couplings is minimized by using a mechanism that reduces backlash. The mechanism comprises cooperably splined male and female members. One member is formed by 2 coaxially aligned splined segments with end surfaces shaped to engage in sliding relationship. The connecting device applies axial loads to these segments, causing them to rotate relative to 1 another.

China Professional DOT-3AA High Pressure Industry Oxygen Cylinder     with Great qualityChina Professional DOT-3AA High Pressure Industry Oxygen Cylinder     with Great quality