B Apron Feeder In Coal Handling Plant is our factory according to the needs of users, 400C block and granular material, as a continuous delivery after market research, reference to domestic and foreign advanced information, material equipment, is suitable for small and medium-sized cement plant limestone, a product, it is suitable for along the level or dumping Grade crushing eye material can also be used in mines and other similar work (installation Angle is generally not more than 25) of line segments by silo environment.
To the crusher, conveyor or other working machinery are continuous with 1 structural form and characteristics
Allotment or transshipment of various allowable transport density is not greater than
B type Apron Feeder In Coal Handling Plant consists of chain plate device, head wheel device, 2400kg/m, block weight not more than 50okg, temperature not higher than the tail wheel tensioning device, driving device and other components.
The body of the Figure 1 floor loading
The chain plate device shown in Figure 1 is the load-bearing member of the feeder thick steel plate stamping into a wavy shape, so that it has enough strength, and traction parts, as a bearing member of the tank body straight building and material and stiffness, both sides of the bottom plate welding skirt plate, to prevent small material contact, in order to withstand the impact of large heavy objects, the bottom plate is more leaked out of the machine, as a traction member of the chain is left and right two Cement and lime
Set of simple roller chain, it is impact resistant, smooth running, work can be installed in the middle of the chain wheel is both a force transmission member and walking member, simple structure, compact, left and right chain are connected with the bolt body, do not use the commonly used through the shaft so as to light weight, save material, because left, right traction chain is not connected through the shaft, the tail of two sprockets to double roll
The dynamic bearing is fixed on the shaft, the traction force of a chain is only 1/2 of the total traction force, and the unbalance coefficient of 75%~80% should be considered in the form of a chain gravity force connected by the shaft. The actual traction force of B Apron Feeder In Coal Handling Plant is 20%~25% higher than that of the form connected by the shaft. In addition, the left and right strips are placed on the outside of the body to facilitate the maintenance and maintenance of the chain safety wheel raw
Head gear
The head wheel device is shown in Figure 2, it is made by safety coupling shaft Wheel, so that the two keys move forward, drive Device 1, two pairs of gear 2, two pairs of bearing seat 3 Reliable.
The power from the full coupling passes through the gears to drive a-direction line.
Figure 3 is divided into two parts
The tailwheel tensioning device is shown in Figure 3. It is composed of two
The same tailwheel shaft can not only reduce the traction chain bypass
Tail sprocket 1, a long shaft 2, a pair of tensioning rod 3, etc
Rear wheel when the drag, and when the two traction out of sync
Each tail sprocket is supported by a double rolling bearing
When, the wheel can be automatically adjusted to ensure that the force of the two chains is equal one drive sprocket speed.r/min
The driving device is shown in Figure 4. It is made of YCT system number of teeth per sprocket
Column electromagnetic speed measuring motor 1, column coupling 2,2 type S minus traction pitch. The speed device is composed of 3, with reliable transmission and adjustable speed.
9. Bearing branch line load, Point, can adapt to the user's needs of a variety of speeds, can be easily rooted 9= q. +9 N/m. Adjust the feeding amount according to the crushing capacity of the crusher.
9. Load of a chain plate dead weight line,N/m9-- load of conveying material line.
YCT motor 9- = Qg/(3600 e)， N/mi
Semi - intermission tax situation
Q- Productivity.kg/bi
L. Horizontal projection length of a bearing branch; m
L. Horizontal projection length of a no-load branch,m:H- decay height,m
C. Correction factor of equivalent mass of a feeder chain plate.
The correction factor is equal to the total length L of the feeder
Figure 4 Moving device
guan
C-1.0 for L<25m
The head is provided with a head connected with the crusher,When 25m<ΣL<60m BC.-0.6.
Cover, its function is to facilitate the concentration of material into the crusher, prevent
According to formula (1), other conditions are equal Small and medium stones flew out of the aircraft during the crushing process. Below, the dynamic load S/ is inversely proportional to the square of the plate reading x.
The head fruit, the middle frame of Apron Feeder In Coal Handling Plant, the tail fruit, the upper and lower rail constitute the static with the reduction of the number of teeth, the dynamic load will increase sharply. At the same time, the frame plays the role of support and replacement in the feeder.
The dynamic load in turn is proportional to the square of the speed t of the chain plate.
The cushion is installed under the bottom plate of the blanking place, so if the running speed is high, more teeth must be used.
A device for Apron Feeder In Coal Handling Plant to support the impact of falling material and prevent the deformation of the bottom plate, the number of teeth is small, must bear the choice of low running speed, push the teeth of steel and wood mixed structure, can not only ensure the performance requirements, but also reduce the number range x=5~13, when the conveyor running speed is high, should be light weight, save materials, convenient processing.
Using x=8~12,B Apron Feeder In Coal Handling Plant running speed is higher
2 Series main parameters
Low, therefore, the number of sprocket teeth x=8.
(1) Chain plate width B series is 800mm,
(3) the ratio of key pitch has a direct impact on the performance of the feeder
1000mm,1250mm three specifications
And economic benefits, the (1) formula r into the actual :(2) the number of sprocket teeth is driven by the multilateral effect cattle S= pr/(60g) (qL, + C.9.L, + 9-H) (2) dynamic load important factors, for the ordinary plate feeder, chain
According to equation (2), other conditions are equal.
The maximum load S on the strip can be calculated according to the following formula:
Down: Dynamic load is proportional to the traction key pitch, if the single move
S3/g (gl， +Ca+9H)
In terms of load, the pitch should not be too large: but from the economic benefit
Is equal to 20. Look, under permitted conditions, the distance should be as large as possible to make the plate s = 60/(rp g)(qL， +CThe dead weight per meter of the running part of the feeder is reduced by the assembler + 4-H)
1) Reduced supply, low energy consumption in daily operation, such as B=800 feed
Where The feeder, if change its pitch p-315 to 200, per meter 4... One rate maximum acceleration of gravity,m/s The self-weight will increase by 21%, and the manufacturing and assembly work will increase by 1.8 8 one gravitational acceleration,9.8m/a,
Therefore, rotation should be considered when determining energy saving of traction chain
v a health plate running speed,w= zpn/60, m/si Characteristics, but also to consider the economic benefits,B Apron Feeder In Coal Handling Plant.
