This document describes air suspension wheel technology for heavy duty vehicles used in mining, construction, and military applications. The wheels have enclosed air springs that provide suspension, absorbing impacts and varying terrain while supporting heavy loads. They are more durable than solid rubber tires or standard inflated tires, resisting bullets, explosions, extreme temperatures, and harsh conditions without failure. The air suspension wheels reduce vehicle maintenance needs while improving ride quality and traction compared to standard wheels.
Whirling of shafts occurs due to rotational imbalance of a shaft, even in the absence of external loads, which causes resonance to occur at certain speeds, known as critical speeds.
Whirling of shafts occurs due to rotational imbalance of a shaft, even in the absence of external loads, which causes resonance to occur at certain speeds, known as critical speeds.
,bearings ,function of bearing ,footstep or pivot bearing ,bush and direct-lined housing ,thrust bearing ,journal bearing ,ball and roller bearings ,types of rolling bearing ,sliding contact bearing ,applications of roller bearings
Rolling contact bearings and design procedureJashavant singh
this slide will give you idea about the rolling contact bearing , its types application areas and also you will learn how to design rolling contact bearing ,
comparison between the rolling contact and sliding contact bearing , advantage and disadvantages.
Episode 39 : Hopper Design
Problem:
1 -experiments with shear box jenike on a particulate catalyst to give the family
yield locus as in 1. given that the bulk density is 1000 kg/m3 particulates and wall friction angle is 15
a-from design chart silo cone, do design a mass flow hopper for the material.
b-if the average size is 100 um, calculate the discharge flow rate passing through the discharge opening
2 - For the above materials using stainless steel is required to store 1000 tons of particulate in it. Coefficient of friction at the wall is given as 0.45 for each value and the formula that you use the appropriate justify the design.
a - draw the dimensions of the silo you and draw a vertical stress profile and the wall of the silo whole time say powerful particle
b- specify the maximum vertical stress and the wall of the silo you
c - if you use several different approaches in the design you provide appropriate recommendations to your employer for work before the end of the casting device fabrication started.
d - if problems such as the formation of the entrance are available after a certain time interval suggest measures - flow improvement measures to be taken to your employer
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
Shanghai Bogvik Wear Material Co., Ltd is one of the most professional crusher parts manufacturer and distributor. We major supply crusher wear parts from 5kgs to 10000kgs in a broad variety of Managnese steel crusher wear parts and alloys steel and chromium iron, Ceramic Insert hammers or blow bars ,Titanium Carbide Insert Liners and crusher spare parts of famous crusher brand .
Wear and spare parts are at the heart of BOGVIK business and we are continually driven to find new and improved ways to optimize component life and equipment performance.
Depending on the application & our clients requirements we offer a range of manganese steel wear parts including Manganese13%, Manganese18% and Manganese22% all with or without chrome & / or molybdenum additions. All manganese liners supplied by BOGVIK are made to our own internal material specifications which are for more stringent than “standard” foundry material specifications.
BOGVIK has in excess of 10000 wear part patterns to fit the world’s most popular crushers. Our patterns cover jaw crushers, cone crushers, gyratory crushers, roll crushers, hammer crushers, horizontal shaft impactors and vertical shaft impactors. No matter what your requirements are, BOGVIK probably already has existing patterns for the wear parts.
We believe in collaboration and work hand-in-hand with our customers to develop solutions that leverages our practical experience, in-house engineering & metallurgical capabilities and manufacturing capacity to provide a complete solution that meets our customer needs.
Contact us today to see how we can help extend service life, improve throughput, optimize supply chain and reduce the total cost of ownership.
sales@bogvik.com
上海勃格维克耐磨材料有限公司是国内最专业的破碎机配件制造商和经销商之一。我们主要供应从 5 公斤到 10000 公斤的各种锰钢破碎机磨损件和合金钢和铬铁、陶瓷插入锤或板锤、碳化钛插入衬板和著名破碎机品牌的破碎机备件。
磨损和备件是勃格维克 业务的核心,我们不断寻求新的和改进的方法来优化部件寿命和设备性能。
根据应用和我们客户的要求,我们提供一系列锰钢耐磨部件,包括锰13%、锰18% 和锰22%,均添加或不添加铬和/或钼。勃格维克 提供的所有锰衬板均按照我们自己的内部材料规格制造,这些规格比“标准”铸造材料规格更严格。
勃格维克 拥有超过 10000 种磨损零件的模具,以适合世界上最受欢迎的破碎机。我们的模具涵盖颚式破碎机、圆锥破碎机、旋回破碎机、辊式破碎机、锤式破碎机、卧式冲击破碎机和立轴式冲击破碎机。无论您需求什么类型的易损件,勃格维克可能已经有此零件的模具。
我们相信与客户携手合作,开发解决方案,利用我们的实践经验、内部工程和冶金能力以及制造能力,提供满足客户需求的完整解决方案。
立即联系我们,了解我们如何帮助延长使用寿命、提高吞吐量、优化供应链并降低总拥有成本。
Episode 38 : Bin and Hopper Design
< 1960s storage bins were designed by guessing
Then in 1960s A.W. Jenike changed all.- He developed theory, methods to apply, inc. the eqns. And measurement of necessary particles properties.
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
Air Suspension System is commonly use in BMW,Mercedes,Audi types luxurious types Cars for protect from damaging, increasing life of the vehicle ,increases the handling , increases comfort of passengers and many more..
So according to me if you remove the suspension system, then you feel like in bull-cart in Audi, Mercedes, BMW type luxurious cars . The only diffrence is speed.
So the scope of Suspension System is Too Bright !!!
,bearings ,function of bearing ,footstep or pivot bearing ,bush and direct-lined housing ,thrust bearing ,journal bearing ,ball and roller bearings ,types of rolling bearing ,sliding contact bearing ,applications of roller bearings
Rolling contact bearings and design procedureJashavant singh
this slide will give you idea about the rolling contact bearing , its types application areas and also you will learn how to design rolling contact bearing ,
comparison between the rolling contact and sliding contact bearing , advantage and disadvantages.
Episode 39 : Hopper Design
Problem:
1 -experiments with shear box jenike on a particulate catalyst to give the family
yield locus as in 1. given that the bulk density is 1000 kg/m3 particulates and wall friction angle is 15
a-from design chart silo cone, do design a mass flow hopper for the material.
b-if the average size is 100 um, calculate the discharge flow rate passing through the discharge opening
2 - For the above materials using stainless steel is required to store 1000 tons of particulate in it. Coefficient of friction at the wall is given as 0.45 for each value and the formula that you use the appropriate justify the design.
a - draw the dimensions of the silo you and draw a vertical stress profile and the wall of the silo whole time say powerful particle
b- specify the maximum vertical stress and the wall of the silo you
c - if you use several different approaches in the design you provide appropriate recommendations to your employer for work before the end of the casting device fabrication started.
d - if problems such as the formation of the entrance are available after a certain time interval suggest measures - flow improvement measures to be taken to your employer
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
Shanghai Bogvik Wear Material Co., Ltd is one of the most professional crusher parts manufacturer and distributor. We major supply crusher wear parts from 5kgs to 10000kgs in a broad variety of Managnese steel crusher wear parts and alloys steel and chromium iron, Ceramic Insert hammers or blow bars ,Titanium Carbide Insert Liners and crusher spare parts of famous crusher brand .
Wear and spare parts are at the heart of BOGVIK business and we are continually driven to find new and improved ways to optimize component life and equipment performance.
Depending on the application & our clients requirements we offer a range of manganese steel wear parts including Manganese13%, Manganese18% and Manganese22% all with or without chrome & / or molybdenum additions. All manganese liners supplied by BOGVIK are made to our own internal material specifications which are for more stringent than “standard” foundry material specifications.
BOGVIK has in excess of 10000 wear part patterns to fit the world’s most popular crushers. Our patterns cover jaw crushers, cone crushers, gyratory crushers, roll crushers, hammer crushers, horizontal shaft impactors and vertical shaft impactors. No matter what your requirements are, BOGVIK probably already has existing patterns for the wear parts.
We believe in collaboration and work hand-in-hand with our customers to develop solutions that leverages our practical experience, in-house engineering & metallurgical capabilities and manufacturing capacity to provide a complete solution that meets our customer needs.
Contact us today to see how we can help extend service life, improve throughput, optimize supply chain and reduce the total cost of ownership.
sales@bogvik.com
上海勃格维克耐磨材料有限公司是国内最专业的破碎机配件制造商和经销商之一。我们主要供应从 5 公斤到 10000 公斤的各种锰钢破碎机磨损件和合金钢和铬铁、陶瓷插入锤或板锤、碳化钛插入衬板和著名破碎机品牌的破碎机备件。
磨损和备件是勃格维克 业务的核心,我们不断寻求新的和改进的方法来优化部件寿命和设备性能。
根据应用和我们客户的要求,我们提供一系列锰钢耐磨部件,包括锰13%、锰18% 和锰22%,均添加或不添加铬和/或钼。勃格维克 提供的所有锰衬板均按照我们自己的内部材料规格制造,这些规格比“标准”铸造材料规格更严格。
勃格维克 拥有超过 10000 种磨损零件的模具,以适合世界上最受欢迎的破碎机。我们的模具涵盖颚式破碎机、圆锥破碎机、旋回破碎机、辊式破碎机、锤式破碎机、卧式冲击破碎机和立轴式冲击破碎机。无论您需求什么类型的易损件,勃格维克可能已经有此零件的模具。
我们相信与客户携手合作,开发解决方案,利用我们的实践经验、内部工程和冶金能力以及制造能力,提供满足客户需求的完整解决方案。
立即联系我们,了解我们如何帮助延长使用寿命、提高吞吐量、优化供应链并降低总拥有成本。
Episode 38 : Bin and Hopper Design
< 1960s storage bins were designed by guessing
Then in 1960s A.W. Jenike changed all.- He developed theory, methods to apply, inc. the eqns. And measurement of necessary particles properties.
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
Air Suspension System is commonly use in BMW,Mercedes,Audi types luxurious types Cars for protect from damaging, increasing life of the vehicle ,increases the handling , increases comfort of passengers and many more..
So according to me if you remove the suspension system, then you feel like in bull-cart in Audi, Mercedes, BMW type luxurious cars . The only diffrence is speed.
So the scope of Suspension System is Too Bright !!!
Les Web Components inaugurent une nouvelle ère de développement web, un monde dans lequel vous prenez le pouvoir avec la possibilité de créer de nouveaux composants personnalisés et encapsulables. Construit sur ces nouveaux standards, Polymer facilite l'implémentation de composants du simple bouton à une application riche complète.
Nous verrons dans cette présentation les différentes spécifications mises en oeuvre derrière le concept de WebComponents (Shadow Dom, Custom Element ...) ainsi que leur mise en place en utilisant Polymer
The wheel assembly consists of the hub, disc or spokes, rim, tyre & tube.Wheels is the important part of the vehicle. The vehicle can’t move on the road without wheels. “ The wheels are legs of the vehicle carry it to far off distance. The support of the whole weight of the vehicle & convert rotary motion into longitudinal one".
“The value in time is the time in value”, states the author, pointing out the crucial importance of time even in static price, where others see no room for it, perhaps except in bargaining, which takes some time, during which the asking and offered price may change considerably. If there is no open bargaining, say in a mall, there is in the buyer’s mind. It lasts as long as the potential buyer considers buying the merchandise at the posted (non-negotiable) price and eventually becomes real buyer, who pays with real money. The value of the merchandise exist only in the buyer’s mind. It is intangible, just like all opinions are. It materializes (becomes tangible) however upon the buyer agrees to pay in full (not when he paid in full though). Thus the buyer, and not the seller, defines the price. The buyer may not know anything about supply of and demand on the merchandise. Thus alleging that these define the price is blind negligence camouflaged in logic. Main stream economy pontificates even harsher fallacies. No such things are in Prendology, which is the science of value and price laws of marketables based on human nature. Only the key principles, laws and corollaries are summarized here. Should you disagree in these, this slideshow and the Prendology college textbook (comming soon) is not for you. You should read Keynesian books instead and observe carefully the mirage that the tail wags the dog.
Data/command center in sea/highway containers.
War/terrorist hardened.
Bullet and blast proof.
Earthquake/hurricane resistant.
Self-reliant.
Forensic friendly.
Rapid deployment and decommissioning.
A New Battlefield Fuel Transporter
Stealth Bullet and Grenade Proof Secure Fuel/Water/Chemicals Transportation with Steel Liquid Tank in Hardened Containers
5. Alternative Rim assemblies with confined
elastomeric and rigid ribs gripping options
Wheel Suspension with hub and rim assembly, air-
spring shock-crowns, and lateral retainer assembly
Lateral Retainer Cover Rings (outboard Dust Cover Disk is not shown)
Alexandra Sandvik Drill
Rig (TASW) Tyson Air
Suspension Wheel 1000
mm diam., 280 mm
wide, 13 tons load, 100
mm stroke, works under
slurry and on quarry,
stops bullets
Steel Tire
Example 1
7. Rim assembly Hub assembly Shock crown Shock
Lateral retainer assembly (Teflon/bronze
slider washer backed by urethane washer)
Spacer ring
Pin
Valve
Coupler
8. Outboard cover plate assembly Inboard cover plate
Outboard dust/mud cover
Cover plates give lateral support for the hub assembly.
9. Frontal view with front cover removed Frontal view with front and back covers removed
The hub assembly is elastically suspended on the rim assembly by adjustable pressure air springs.
The force-displacement relationship is progressively hardening with cushioned stroke limiter stop.
10. Cross sections with and without covers
Inboard urethane dust/mud seal
(snaps on the hub sleeve and
slides on the inboard cover plate)
12. Double acting pneumatic air cylinder (air spring and shock absorber/attenuator)
Eye bar
Quick coupler
Security ball valve with ratchet
Plug with seal and viper
Urethane bellow
Urethane bumper
Clevis
Cylinder
Piston head
Seal
Piston rod
Clamp
Shown in mid-stroke (neutral)
stroke setting with equal force
preload on both sides of the
piston head equal the static
empty vehicle wheel load.
Filled with dry
air or nitrogen.
13. Inflated tire wheel: Air suspension wheel:
The unsprung wheel weight is negligible. The unsprung wheel weight is significant.
Wheel deflection is 1-6% of wheel radius. Wheel deflection is 3-16% of wheel radius.
mm = 0 mm >> 0
Machineries lack chassis
suspension (K = 0).
3 < kk/k < 16
The superior air suspension wheel saves machinery maintenance and road. It provides luxury ride for the workers.
14. Example 2 CAT 980H Loader Tyson Air Suspension Wheel 1925 mm diam., 766 mm wide, 25 tons load, 240
mm stroke, works in mud and on sand/gravel/soft-soil, stops bullets, does not burn, no tire flats
16. Courtesy of National Rims, South Africa, 2014
The fully assembled heavy steel wheel weighs 3,200 kg.
The same in ductile aluminum weighs only 1,100 kg, which
is less than the inflated tire wheel, which it replaces.
Light steel wheel weights the same as inflated tire wheels
with chain mesh installed. Its cost is also about the same.
17. Courtesy of National Rims, South Africa, 2014
The wheels can be shipped in horizontal or vertical positions.
The initial shock pressure setting can be on the high side, for
it is easier to let pressure out on the field than to pump more
air into the shocks. For field adjustment, both the hub and
the wheel need to be jacked up to center the hub to the rim.
18. Courtesy of National Rims, South Africa, 2014
Compare these same size wheels:
Wheel 1) Inflated tire wheel with chain mesh:
1,600 kg (1,600 kg sprung + 0 kg unsprung)
Wheel 2) Wheel with solid rubber tire:
2,200 kg (0 kg sprung + 2,200 kg unsprung)
Wheel 3) Heavy steel air suspension wheel:
3,200 kg (1,300 sprung + 1,900 kg unsprung )
Wheel 4) Light steel air suspension wheel:
1,700 kg (600 sprung + 1,100 kg unsprung)
The larger the sprung-to-unsprung ratio, the
powertrain is less stressed, but the wheel
acceleration/deceleration is more delayed.
20. Light Steel Wheel: Same size, load capacity and deflection. 50% lighter, 100% stiffer and 4x better cornering with load.
It comes with different gripping patterns to service rock, riprap, gravel, mud, peat, sand, snow and more.
21.
22. Example 3
Slag Pot Carrier
Tyson Air
Suspension Wheel
(TASW) 1150 mm
diam., 390 mm
wide, 20 tons load,
100 mm stroke,
resists high heat,
splashing molten
lava/slug, lasts as
long as the vehicle,
needs sparse
maintenance
25. State of art.
In this work and heat,
even solid rubber tires
are consumed rapidly.
26. Retrofit (after market): Cushioned Runflat Insert
• Stealth for security
• Runs deflated indefinitely
(Side wall bullet shield
is removed for clarity.)
27. Pickup Truck Tyson Air
Suspension Wheel (TASW)
800 mm diam., 200 mm wide,
2 tons load, 50 mm stroke,
resists extreme terrain abuse,
multiple gunshots, Molotov
cocktails, cutters, spikes and
nails, lasts as long as the
vehicle, hermetically enclosed,
buoyant in slurry and mud,
does not slip on water, snow
and ice, needs only sparse
inspection and maintenance
Example 4
28.
29.
30. • Air suspension wheels are engineered as flexible torque couplers of large twist capacity, thus virtually
preventing wheel slip on ice/snow/ mud/ water-film/sand, gravel/soft-soil and at start of rolling.
• Their heavier part (the rim assembly with half of the shocks) is supported by the ground (unsprung), so
the vehicle’s drivetrain does not “see’ it, except for its motion-preserving higher rotational inertia.
• They take bullets, IED explosions, deep ditches and tall bumps, spikes and sabotages without need for
tire change, for these last as long as the vehicle itself, having constructed the same way.
• Their somewhat higher price pays off in tire and fuel savings, low maintenance and adjustability (field
or factory) to load and road conditions adapting to various rugged vehicular uses and conditions.
• They can solve tough problems in mining, construction, agriculture and combat as no other wheels can.
END