Product Description

Description
V Blender equipment is very useful in the pharmaceutical and food manufacturing industries. It consists of 2 asymmetric barrels where the materials can move both longitudinally and transversely so that the mixing evenness can be higher. It offers a short blending time and highly efficient in operation.

The machine is made up to 2 hollow cylindrical containers joined together at an angle of 75 to 90 degrees. As the V blender tumbles the material is continuously separated and recombined, and thorough mixing occurs as it falls randomly in the vessel. The repeated converging and diverging motion enhances the frictional contact between the material and the vessel giving a gentle and homogenous blend.

Salient Features

• Suitable for dry mixing of products in powder form.
• Easy for loading and unloading.
• Easy for cleaning.
• All contact parts are made out of SS304/SS316 or SS316 L quality material, as per customer requirement.
• Simple design requires minimum maintenance.
• General structure & safety guards made out of mild steel & colored in Standard Model and made out of SS304 & polished to the matt finish in GMP Model
• The ‘V’ shape gives sufficient continuous movement to the granules, result in good quality.
• Maximum care has been taken to ensure safe operation of the unit.

Other Option Available with V Blender Machine

• Vacuum Loading facility for material charging
• Flame proof drive motor along with flame proof starter
• Contact parts made out of SS316 or SS316 L instead of SS304.

The ‘V’ BLENDER is an efficient and versatile blending machine for mixing and lubrication process of dry powders homogeneously. Approximate 2 third of the volume of the Blenders filled to ensure proper mixing. The ‘V’ Blender gives best result for powders due to suitable medium speed and ‘V’ shape of container. It can be used for Pharmaceutical, Food, Chemical and Cosmetic products etc.

In V Blender machine the powders comes from all sides due to the ‘V’ shape of the product container, hence requirement of RPM is medium. Suitable mainly for powder & granules type material. This type of material gets sufficient continuous movement. Due to the ‘V’ shape of container, even medium movement will result in good quality of blending/lubrication of granules.

Technical Parameter

Model	Total volume L	Material capcity L	Working capacity kg	Rotating speed rpm	Power kw	Weight kg
HV-50	50	25	15	25	0.55	500
HV-150	150	75	45	20	0.75	650
HV-300	300	150	90	20	1.1	820
HV-500	500	250	150	18	1.5	1250
HV-1000	1000	500	300	15	3	1800
HV-1500	1500	750	450	12	4	2100
HV-2000	2000	1000	600	12	5.5	2450
HV-3000	3000	1500	900	9	5.5	2980
HV-4000	4000	2000	1200	9	7.5	3300
HV-5000	5000	2500	1500	8	7.5	3880
HV-6000	6000	3000	1800	8	11	4550
HV-8000	8000	4000	2400	6	15	5200
HV-10000	10000	5000	3000	6	18.5	6000

Company Show
Company introduction: ZheZheJiang ngxing Drying Equipment Co., Ltd.
ZheZheJiang ngxing Drying Equipment Co.,Ltd has established in 1998 and it covers an area of 15000 square meters, possesses fixed asset of USD 7 millions. The products have exported to US, Singapore, India, Ukraine, Russia, Korea and so on. The company have advanced production equipment , excellent technical team and after-sales service.

CERTIFICATE

Package:wooden case

Service:
pre-sale service
We Invite customers to visit our company and communicate on technical requirements face to face.
sale service
Responsible for debugging the equipment according to customers’ requirements of various technical data. Our engineers will train our customers about equipment features and operation key points to make sure the equipment running in the best condition.
after-sale service
We provide installation, debugging, maintenance, training and other services; Provide relevant technical data, equipment, software and related GMP certification materials;Set up after-sales service hotline, and arrange personnel to visit customers every year to know more customer needs,like customer operation problems in the process of production equipment.
quality promise
Our company promises strictly operate the ISO9001 quality system certification standards and pharmaceutical equipment GMP audit requirements,promise we provide new equipment. Advanced technology,good quality.Equipment operation safe reliable, affordable, easy to maintain.
Equipment warranty period is 1 year,all the parts for the equipment choose well-known brand.During the warranty when equipment have problem in quality like equipment failure and damage,the company for free maintenance or replacement.

We look forward to cooperating with partners from all over the world to build CZPT cooperation relationship in long term. Welcome for your visiting.

Previous Exhibition

FAQ:
1. Q: Please describe your warranty period.
    A: 15 months after the equipment is arrived at the destination port or 12 months after   the installation and commissioning of the equipment, whichever comes first.

2. Q: Do you provide on-site installation and commissioning?
    A: Yes, we do. If on request, we’ll provide the guidance of on-site installation and commissioning. Usually 1 mechanical engineer and 1 electrical engineer to assist.

3. Q: How about the cost of on-site installation and commissioning guidance?
    A: The cost consists of round-trip air tickets, room and board expenses, service cost (labor cost), and site transportation (or directly provided by client), which shall be paid additionally.

4. Q: Are you a factory or a trading company?
    A: We are a professional manufacturer. We have own factory and pilot plant for customers to do sample testing. 

How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings

There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.

Involute splines

An effective side interference condition minimizes gear misalignment. When 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to 50-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows 4 concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these 3 components.

Stiffness of coupling

The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using 2 different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these 2 methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.

Misalignment

To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.

Wear and fatigue failure

The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.