The river snail classifying screen
Technical field
A kind of river snail classifying screen belongs to river snail process equipment field.
Background technology
Through river snail is carried out hierarchical processing by size, can make the specification of river snail goods more uniform, this all is necessary greatly the commodity value of raising river snail goods and the Mechanized Processing of later process, therefore, needs a kind of river snail grader of design.
Summary of the invention
The purpose of the utility model is to design a kind of river snail grader, to satisfy the classification needs of river snail goods.The structure of this machine is made up of support, feed hopper, rotary screen and receiving hopper etc.Support is the main body frame of river snail classifying screen, is provided with feed hopper in the upper end of support, is used to place the river snail that does not have classification, and feed hopper is the square-shaped hopper structure, and feed hopper is fixed on the support, is provided with valve in the lower end of feed hopper, is used to control the discharge of river snail.At the two ends of support inclination mounting cylinder sieve, the structure of rotary screen is made up of roller shelves, little support, drum shaft, motor and screen cloth.Roller shelves is columnar framework, and roller shelves is used for mesh support screen, in roller shelves, is provided with little support, and the two ends of little support are fixedly linked with roller shelves, drum shaft respectively.Be provided with screen cloth around one week of roller shelves, screen cloth and roller shelves are connected as a body.Screen cloth is divided into three sections of upper, middle and lower; The order number of the three sections screen clothes in upper, middle and lower is different; The variation of its order number be in proper order little, in, big so that with river snail by little, in, separately big, be provided with drum shaft in the centre of roller shelves; The two ends of drum shaft are fixed on the bearing block, and bearing block and support are fixedly linked; The lower end of drum shaft is passed behind the bearing block and the rotating shaft of motor is fixedly linked, and motor is fixed on the support, and motor adopts slowspeed machine, and starter motor can drive rotary screen and rotate.Below rotary screen, be provided with three receiving hoppers, be used for holding little,, big three kinds of different river snails, receiving hopper is fixed on the support, is provided with valve in the lower end of receiving hopper, is used to take out the river snail that is held.
During use; Open motor and make the rotary screen rotation; River snail is placed in the feed hopper, opens valve river snail is entered in the rotary screen, in the process of rotation; River snail from top to bottom successively through screen cloth little, in, big three sections, through the time river snail through the filtration of screen cloth be divided into little, in, big three grades.
Description of drawings
Fig. 1, river snail classifying screen front view Fig. 2, river snail classifying screen side view
1, support, 2, feed hopper, 3, rotary screen, 4, receiving hopper, 5, valve, 6, drum shaft, 7, bearing block, 8, roller shelves, 9, motor, 10, screen cloth, 11, little support.
The specific embodiment
Like Fig. 1, shown in 2, the structure of this classifying screen is made up of support 1, feed hopper 2, rotary screen 3 and receiving hopper 4 etc.Support 1 is the main body frame of river snail classifying screen, is provided with feed hopper 2 in the upper end of support 1, is used to place the river snail that does not have classification; Feed hopper 2 is the square-shaped hopper structure; Feed hopper 2 is fixed on the support 1, is provided with valve 5 in the lower end of feed hopper 2, is used to control the discharge of river snail.At the two ends of support 1 inclination mounting cylinder sieve 3, the structure of rotary screen 3 is made up of roller shelves 8, little support 11, drum shaft 6, motor 9 and screen cloth 10.Roller shelves 8 is columnar frame structure, and roller shelves 8 is used for mesh support screen 10, in roller shelves 8, is provided with little support 11, and the two ends of little support 11 are fixedly linked with roller shelves 8, drum shaft 6 respectively.Be provided with screen cloth 10 around 8 one weeks of roller shelves, screen cloth 10 is connected as a body with roller shelves 8.Screen cloth 10 is divided into three sections of upper, middle and lower; Three sections of upper, middle and lower, the order number of screen cloth 10 is different, the variation of its order number be in proper order little, in, greatly; So that with river snail by little, in, big separately; Be provided with drum shaft 6 in the centre of roller shelves 8, the two ends of drum shaft 6 are fixed on the bearing block 7, and bearing block 7 is fixedly linked with support 1; The rotating shaft that bearing block 7 backs and motor 9 are passed in the lower end of drum shaft 6 is fixedly linked, and motor 9 is fixed on the support 1, and motor 9 adopts slowspeed machine, and starter motor 9 can drive rotary screen 3 and rotate.Below rotary screen 3, be provided with three receiving hoppers 4, be used for holding little,, big three kinds of different river snails, receiving hopper 4 is fixed on the support, is provided with valve 5 in the lower end of receiving hopper 4, is used to take out the river snail that is held.