3. Single Toggle Jaw Crusher

8/18/2019 3. Single Toggle Jaw Crusher

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OTSUKA IRON WORKS, LTD

Single Toggle Jaw Crusher

OTSUKA IRON WORK, LTD


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General


The single toggle crusher has a very large crushing capacity because it is large

in opening s ize, large in crushing throw near around the inlet and small in the

whole nip angle. Since it is simple in mechanism and light in weight as

compared with the blake type, this machine is very easy to handle. For this

reason, this machine has established its position as a primary crusher in the

aggregate production equipment. The double-toggle (blake) crusher havingconventionally been used is now used only in limited applications such as

The tendency toward the large-size single toggle crushers has been

accelerated by the factors such as the establishment of its position of this type

crusher in the stone-quarrying industry, tendency toward the large-scale

stone-quarrying industry and tendency toward the large-size raw stone in

keeping w ith the reduction in raw stone quarrying cost that give impetus to each

other. Consequently, the largest machines having been kept on actual

manufacturing records reach the size of 1,500 mm × 2,000 mm. For the

structure, the steel plate frame type and sw ing jaw frame type have been in

popular use, thanks to the rapid progress of welding techniques. The cast steel

having conventionally been in popular use is now used only in limited parts.



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Specifications

Pulley Motor

40 50 60 80 100 125 150 175 200 225 250 rpm kW

FS-3020 750 × 500 58 68 78 98 117 138 250 39-45

FS-3624 900 × 600 115 138 160 186 250 55-75

FS-4230 1050 × 750 198 221 249 277 305 230 75-110

FS-4840 1200 × 1000 297 333 368 403 200 110-130

FS-5442 1350 × 1050 355 396 437 479 520 190 130-150

FS-6048 1500 × 1200 455 492 528 564 601 637 190 150-190

FS-7254 1800 × 1350 630 680 725 770 809 845 180 200-250FS-8460 2100 × 1500 850 910 955 ### ### ### 150 350-300

Capacities are based on ord inary limestone not containing wet fine particles.


No.

Feed opening

(mm)

Approx. Capacity (t/h) by Close set teng (mm)

The sectional view

Swing jaw plate

Fixed jaw plate

Feed inlet

Productoutlet

Toggle plate

Flame

Toggle block

Flywheel


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FEATURE AND APPLICATION

STRUCTURE

Frame

Swing jaw

Eccentric shaft

Bearing

OTSUKA IRON WORKS LTD

FS type single toggle crusher has big opening dimensions.

Crushing throw in inlet vicinity is big, and a crushing capacity is very bigbecause moreover a total nip angle is small. Price is cheapness, moreover,

structure is simple and the handling is extremely easy for light weight.

Therefore, it is the crushers which it was suitable for as lime stone crushing

equipment, crushing plant, a primary crush use such as an aggregate plant of

dam construction most.

Frame is one structure of the core box that combined steel plates for welding

structure by welded, moreover put rib inside, and it is with extremely strong

design. In addition, it gives postweld heat treatment, and the residual stress

has been removed. Large-scale machines more than FS-4840 types are frame

two-piece housings or be division into 4s to a side frame, front and back part

frame and tighten each frame with bolt.

It is designed strongly to bear strong enough crushing force in box section

structure made by cast steel.

Because it did an eccentricity revolution and moved the swing jaw and

received crushing force and an impulse force strong directly, a material used a

special forged steel, and finished precisely.

Be used spherical roller bearing with a main-bearing and swing jaw bearing.

A roller bearing is chosen to have a big safety factor and endurance for

crushing power with bombardment. Lubricating becomes oil filled system.

Moreover, maintenance management is very easy because a bearing part

completely prevents a trespass of dust and run off of oil by a labyrinth seal.


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Toggle plate and seat

Jaw plate and cheek plate

Flywheel

Set adjusting device


All is made by high quality high manganese cast steel, and be given a

complete heat treatment. The jaw plate is the top and bottom same model

therefore running cost is profitable because it does upside down and can use.

It establishes at both ends of the eccentric shaft, and one side serves as a V

pulley. It keeps enough flywheel effect to let you show powerfully crushing

power. Moreover, flywheel becomes balance weight for unbalance dependingon eccentricity movement.

When it regulates an outlet differential gap, it connects a hydraulic cylinder

and toggle block directly and it press-fits an oil in a hydraulic cylinder and

pushes toggle block forward and inserts shim board, therefore can regulate

very in a short time. After the adjustment is completed, the oil pressure is

multiplied by the rod side of the hydraulic cylinder, and the toggle block is

tightened and fixed to a back frame and fixes toggle block by taper block atframe both ends, therefore do not rattle during operation.

Plate is made by special cast iron, and a seat is made by forging steel. In

the contact part, be taken hard facing both. A contact part of a seat and plateis an oilless system(patent No.424746), therefore do not need oiling, and there

is not sticking by running out of oil. Moreover, maintenance is simple, and

there is not that it pollutes floor with an oil at all. Moreover, toggle plate

becomes somewhat lower with strength than other parts. A plate chews

metallic material in crushing room, and it is with the protective device which it

does breakage, and prevent damage for the other body when abnormality load

hung.


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2. About the expression of crusher setting (an out let differential gap)

3. About a crushing ratio and feed maximum lump


Show crusher setting by dimensions between a valley position of the

fixed jaw plate and stack of the swing jaw plate in a bottom point of a jaw

plate. Follow the custom of old times, and do when the jaw plate openedwi th FS type (open side setting).

A crushing ratio is raw material and a ratio of crushing product particle size.

Because both feed lump and a crushing product cannot be prepared in constant

dimensions, therefore tend to express a raw stone and dimensions of product in

80% size (so-called F80, P80) each. F80, P80 are sizes of a weight of

undersize 80% in each particle size distribution. It is necessary to control

maximum lump in dimensions of lower than normal 80% of a crusher inletdimensions to o erate continuousl without sto in crushin . Almost assume a crushing ratio 3-7 with our company crusher, and design for

about 5 in an average. Judging from the efficiency of a machine and crushing

ability, an application except this crushing ratio is unfavorable. When it uses

with a particularly big crushing ratio (the smallest set of a catalog mention), the

crushing room is in a condition of overcompression, and there is even that it

progresses for trouble of a machine. Therefore, can change an eccentricity of

the eccentric shaft with FS type. When it does the special method of

1. About expression of a crusher size

A size of a crusher expresses in the

numeric value which divided width W

mm and opening G mm of the inlet

dimensions by 25mm like a drawing.

FS-4230 Width 1050 mmOpening 750 mm


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4. About number of revolutions of a crusher

A number of revolutions of a crusher affect a crushing capacity, and, however,

an effect bigger than a crushing capacity appears in particle size distribution.

Generally, small product increases when it raises a number of revolutions of a

crusher, and coarse product increases when it lowers a number of revolutions.

Moreover, it is necessary to change a number of revolutions by a kind, a

property of raw material. For example, be soft, but it is necessary it lowers a

number of revolutions when it crushes stone (talc, sulfur) which is easy to slip

(100-150 rpm), and to run.


3. Single Toggle Jaw Crusher

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