design of socket and spigot cotter joint pdf worked

Design Of Socket And Spigot Cotter Joint Pdf Worked

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Difference between cotter joint and knuckle joint pdf expected

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Published on Apr 13, Cotter and knuckle joints. SlideShare Explore Search You. Submit Search. Home Explore. Successfully reported this slideshow. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Upcoming SlideShare. Like this document? Why not share! Embed Size px. Start on. Show related SlideShares at end. WordPress Shortcode. Mohamed Mohamed El-Sayed Follow. Published in: Engineering. Full Name Comment goes here. Are you sure you want to Yes No. Pankaj Ghule. Ashwin Oraon. Show More. No Downloads. Views Total views. Actions Shares. No notes for slide. Cotter and knuckle joints 1. Contents 1 Notations 2 1. Socket and spigot cotter joint, 2. Sleeve and cotter joint, and 3. Gib and cotter joint.

The end of the rod which goes into a socket is also called spigot. A rectangular hole is made in the socket and spigot.

A cotter is then driven tightly through a hole in order to make the temporary connection between the two rods. The load is usually acting axially, but it changes its direction and hence the cotter joint must be designed to carry both the tensile and compressive loads.

The compressive load is taken up by the collar on the spigot. Figure 1: Socket and spigot cotter joint. Failure of the rods in tension. The rods may fail in tension due to the tensile load P. Failure of spigot in tension across the weakest section or slot.

Since the weakest section of the spigot is that section which has a slot in it for the cotter. Figure 2: 3. Failure of the rod or cotter in crushing. Failure of the socket in tension across the slot. Figure 3: 6. Failure of cotter in shear. Figure 4: 6. Failure of the socket collar in crushing. Figure 5: 7. Failure of socket end in shearing. Failure of rod end in shear. Failure of spigot collar in crushing.

Figure 6: Failure of the spigot collar in shearing. Figure 7: 8. Failure of cotter in bending. In all the above relations, it is assumed that the load is uniformly distributed over the various cross-sections of the joint. But in actual practice, this does not happen and the cotter is subjected to bending. Figure 8: The length of cotter l is taken as 4 d. The taper in cotter should not exceed 1 in In case the greater taper is required, then a locking device must be provided.

The draw of cotter is generally taken as 2 to 3 mm. Notes: 1. The taper of cotter is usually 1 in It may be noted that the taper sides of the two cotters should face each other as shown in Fig.

The clearance is so adjusted that when the cotters are driven in, the two rods come closer to each other thus making the joint tight. Failure of the rod in tension across the weakest section i. Failure of sleeve in tension across the slot. Failure of sleeve end in shear. A gib and cotter joint is usually used in strap end or big end of a connecting rod as shown in Fig.

In such cases, when the cotter alone i. In order to prevent this, gibs as shown in Fig. Moreover, gibs provide a larger bearing surface for the cotter to slide on, due to the increased holding power. Thus, the tendency of cotter to slacken back owing to friction is considerably decreased. The jib, also, enables parallel holes to be used. Figure Gib and cotter Joints.

When one gib is used, the cotter with one side tapered is provided and the gib is always on the outside as shown in Fig.

When two jibs are used, the cotter with both sides tapered is provided. Sometimes to prevent loosening of cotter, a small set screw is used through the rod jamming against the cotter. The connecting rod is subjected to tensile and compressive loads.

The width of strap B1 is generally taken equal to the diameter of the adjacent end of the round part of the rod d. In designing the gib and cotter joint for strap end of a connecting rod, the following modes of failure are considered. Failure of the strap in tension. The thickness of the strap at the cotter t3 is increased such that the area of cross-section of the strap at the cotter hole is not less than the area of the strap at the thinnest part.

Failure of the gib and cotter in shearing. In the joint, as shown in Fig. The rods may be subjected to a tensile or compressive load. All components of the joint are assumed to be of the same material. Figure Gib and cotter joint for square rods. In designing a gib and cotter joint, the following modes of failure are considered. Failure of the rod in tension.

The rod may fail in tension due to the tensile load P. Failure of the strap end in tension at the location of gib and cotter. Failure of the strap or gib in crushing.


Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. Published on Apr 13, Cotter and knuckle joints.

A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Mechanical joints may be temporary or permanent, most types are designed to be disassembled. Most mechanical joints are designed to allow relative movement of these mechanical parts of the machine in one degree of freedom , and restrict movement in one or more others. A pin joint, also called a revolute joint, is a one- degree-of-freedom kinematic pair. It constrains the motion of two bodies to pure rotation along a common axis. The joint doesn't allow translation, or sliding linear motion. This is usually done through a rotary bearing.

For design of a basic cotter joints in practical view , a classic design procedure made to follow in the practical approach. So, a design procedure was made on the basis of certain experiments. The design procedure given below :. Calculate the diameter d 2 of the spigot on the basis of tensile stress. Above expression becomes a quadratic expression. Calculate the outside diameter d 1 of the socket on the basis of tensile stress in the socket from the equation :.

Mechanical joint

Design and analysis of knuckle joint stress mechanics. Design a knuckle joint for a tie rod of a circular section to sustain a maximum pull of 70 kn. Dec 18, 20 for the knuckle joint described in prob.

Lets see the drawing of Knuckle joint in Orthographic Representation. The Advantages of Cotter Joint are as follows. The socket and the spigot are provided with a narrow rectangular slot. But do you know about the Animation softwares in Engineering? The piston rod and the crosshead in a steam engine are usually connected by means of a Cotter joint b Knuckle joint c Ball joint d Universal joint [IES] 9.

Cotter joint is used to connect two rods subjected to axial tensile or compressive loads. It is not suitable to connect rotating shafts which transmit torque. Axes of the rods to be joined should be collinear. There is no relative angular movement between rods.

Application instructions note that before mixing the resin and hardener that the resin. The two documents are bound together solely for the users convenience.

Machine Design

A Knuckle Joint is used for the application of the Tie rod joint of jib crane or Tension link in the structure of the bridge. In this article, I am going to present a detailed explanation of the design procedure for Knuckle Joint and Cotter Joint. When there is a requirement of an angular moment or a small amount of flexibility, the Knuckle joint is used.

 - Я залечу твои раны. Она безуспешно пыталась высвободиться. - Я сделал это ради нас обоих. Мы созданы друг для друга. Сьюзан, я люблю .

Nndesign of socket and spigot cotter joint pdf of two cities

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Отключить ТРАНСТЕКСТТеперь это нетрудная задача, поскольку она находится возле командного терминала. Она вызвала нужное командное окно и напечатала: ВЫКЛЮЧИТЬ КОМПЬЮТЕР Палец привычно потянулся к клавише Ввод. - Сьюзан! - рявкнул голос у нее за спиной. Она в страхе повернулась, думая, что это Хейл. Однако в дверях появился Стратмор.

Здесь, в командном центре, Джабба выше самого Господа Бога, а компьютерные проблемы не считаются со служебной иерархией. - Это не вирус? - с надеждой в голосе воскликнул Бринкерхофф. Джабба презрительно хмыкнул. - У вирусов есть линии размножения, приятель. Тут ничего такого .

Это шантаж. Больше всего похоже на требование выкупа. Слова Сьюзан прозвучали слабым, едва уловимым шепотом: - Это… Энсей Танкадо. Джабба повернулся и изумленно посмотрел на. - Танкадо. Сьюзан едва заметно кивнула: - Он требовал, чтобы мы сделали признание… о ТРАНСТЕКСТЕ… это стоило ему… - Признание? - растерянно прервал ее Бринкерхофф.

Но именно правду она не имела ни малейшего намерения ему открывать. Она не доверяла Грегу Хейлу.

Беккер не раздумывая просунул ногу в щель и открыл дверь. Но сразу же об этом пожалел. Глаза немца расширились. - Was tust du.

Когда десять лет назад Сьюзан поступила в агентство, Стратмор возглавлял Отдел развития криптографии, являвшийся тренировочной площадкой для новых криптографов, криптографов мужского пола. Хотя Стратмор терпеть не мог выделять кого-нибудь из подчиненных, он с особым вниманием относился к своей единственной сотруднице. Когда его обвиняли в фаворитизме, он в ответ говорил чистую правду: Сьюзан Флетчер - один из самых способных новых сотрудников, которых он принял на работу. Это заявление не оставляло места обвинениям в сексуальном домогательстве, однако как-то один из старших криптографов по глупости решил проверить справедливость слов шефа.

Сверху хлестала вода, прямо как во время полночного шторма. Стратмор откинул голову назад, словно давая каплям возможность смыть с него вину. Я из тех, кто добивается своей цели.

Дэвид подмигнул крошечной Сьюзан на своем мониторе. - Шестьдесят четыре буквы. Юлий Цезарь всегда с нами.

Он тихо выругался. Тогда почему они послали не профессионального агента, а университетского преподавателя. Выйдя из зоны видимости бармена, Беккер вылил остатки напитка в цветочный горшок.

Ничего подобного ему никогда не приходилось видеть. На каждой руке всего по три пальца, скрюченных, искривленных. Но Беккера интересовало отнюдь не это уродство.



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