Although the jaws do the work the real heart of the jaw crusher and its components are the toggle plates the pitman and the ply wheel 911 Metallurgist is a trusted resource for practical insights solutions and support in mineral processing engineering helping industry professionals succeed with proven expertise Jaw Crusher Components
There are mainly two types of jaw crushers the single toggle and the double toggle or Blake crusher The single toggle jaw crusher features a moving jaw suspended on the eccentric shaft It s known for its efficiency in crushing but tends to be more susceptible to wear because of the high motion of the jaw On the other hand the double
The most common type of jaw crusher today is the Blake crusher patented by Eli Whitney Blake in 1858 Weiss 1985 The Blake crusher pivots at the top and comes in two forms the double toggle and the single toggle Within the scope of this study a series of blasts were conducted in a sandstone quarry and the throughput of the jaw
Figure 1a Blake Crusher Figure 1b Dodge Crusher Figure 1c Universal Jaw Crusher Figure 2 Cross section of Nordberg single series jaw crusher [11] Figure 1a Blake crusher
A double toggle jaw crusher is a type of jaw crusher where the moving jaw is suspended from an eccentric shaft that is positioned on the top of the crusher The swing jaw is moved by a cam or pitman mechanism acting like a lever The double toggle jaw crusher is designed for crushing hard and abrasive materials with its unique features
The recording instruments were first applied to a standard sized 10 by 7 in Blake type jaw crusher in the laboratory Suficient tests were run on this with various combinations of setting throw speed feed sizing shapes of jaw plates and other operating features to establish the individual effect of each on the capacity
The jaw crusher design parameters selected are the ones found by the SGA optimization scheme The following results do not represent a physical process as the calibration procedure could not be successfully terminated due large computational requirements Thus equipment total energy efficiency values calculation of Eq
2 Both the structure and working of a jaw crusher are quite simple 3 The product size is quite small and can range up to millimetres 4 Repair and maintenance of a jaw crusher are convenient and easy 5 The reliability of a jaw crusher is significantly high 6 The broken parts of the jaw crusher are easy to replace Disadvantages of a Jaw
Blake crusher the swing jaw is fixed at the upper position; Dodge crusher the swing jaw is fixed at the lower position; Universal crusher the swing jaw is fixed at an intermediate position; The type of jaw varies which makes the different jaw crushers preferred for certain projects For example the Dodge crusher is used for laboratory
2 Blake Jaw Crusher It is a primary crusher used most widely It has its moving jaw pivoted hinged at the top as in the the working principles of Blake and Dodge crushers may be different from constructional point of view they are almost identical excepting two notable differences which will be discussed afterward
A single toggle Blake jaw crusher was available for crushing Assume the shape factor of the feed and the product were the same Determine 1 the rate of the toggle movement that would meet the target production 2 if the toggle rate was reduced by 25% indicate the production rate of lime A jaw crusher was used to crush a chert ore
A material is crushed in a Blake jaw crusher such that the average size of particle is reduced from 50 mm to 10 mm with the consumption of energy of kW/ kg/s A crusher reducing limestone of crushing strength 70 MN/m2 from 6 mm diameter average size to mm diameter average size requires 9 kW The same machine is used to crush
The Blake Crusher has a fixed jaw and a swinging jaw pivoted at the top On the other hand the Dodge Crusher has a movable jaw that moves back and forth Similarly the Universal Crusher has a fixed jaw and a swinging jaw pivot that moves it
Eli Whitney Blake invented the first successful mechanical rock breaker the Blake jaw crusher patented in 1858 Blake adopted a mechanical principle familiar to all students of mechanics the powerful toggle linkage That his idea was good is attested to by the fact that the Blake type jaw crusher is today the standard by which all jaw
4 History Crushing and breaking of rock ore and mineral is one of the oldest industrial undertaken by man The earliest crushing known was by hand on native ores gold silver & copper Crushing is the essential function in the treatment of all rocks and minerals whatever is their use and available
Jaw crusher $1 000/ Set the lowest price Contact us Cone crusher $5 000/ Set the lowest price Contact us 3 The overall structure of the machine From the perspective of the overall structure the cone crusher is 2 times heavier and 2 3 times higher than the jaw crusher with the same feeding opening size
The moving jaw rotates around the eccentric axis as well as swings around the same center Fig 2 By removing the moving jaw suspension shaft and the front toggle plate of simple pendulum jaw crusher and suspending the moving jaw on eccentric shaft to combine the connecting rod and the moving jaw into whole a compound pendulum jaw crusher takes
Blake type jaw crusher primary crushers in the mineral industry; attains maximum amplitude at the bottom of the crushing jaws as the swinging jaw is hinged at the top of the frame These crushers are operated by and controlled by a pitman and a toggle The feed opening is called gape
Definition of Blake jaw crusher The original crusher of jaw type A crusher with one fixed jaw plate and one pivoted at the top so as to give the greatest movement on the smallest lump Motion is imparted to the lower end of the crushing jaw by toggle joint operated by eccentric This machine or some modification of it is used for reducing
Blake Jaw Crusher Features a fixed jaw and a movable jaw pivoted at the top Dodge Jaw Crusher has a fixed jaw and a movable jaw pivoted at the bottom Single Toggle Jaw Crusher Operates with a single toggle plate offering simpler construction Double Toggle Jaw Crusher Uses two toggle plates providing greater crushing force and efficiency
However the coarse crushing equipment either uses a cone crusher or a jaw crusher In order to correctly select and rationally use coarse crushing equipment they are briefly analyzed and compared as follows Main advantages of cone crusher compared to jaw crusher The depth of the crushing cavity is large Continuous work High production
