CN203578188U

CN203578188U - Multistage-screening fine screening machine

Info

Publication number: CN203578188U
Application number: CN201320718971.0U
Authority: CN
Inventors: 李军
Original assignee: GAOMI ANNAI RUBBER CO Ltd
Current assignee: GAOMI ANNAI RUBBER CO Ltd
Priority date: 2013-11-06
Filing date: 2013-11-06
Publication date: 2014-05-07
Anticipated expiration: 2023-11-06

Abstract

The utility model discloses a multistage-screening fine screening machine which comprises a rack. A driving shaft and a supporting shaft are rotatably connected on the rack, a power device driving the driving shaft to rotate is mounted on the rack, upper cranks are mounted on two end portions of the driving shaft, a first-stage screening basket is hinged on the supporting shaft, an upper connecting rod is hinged between the front end of the first-stage screening basket and each upper crank, a bearing hopper is mounted on the rack, a stirring discharging shaft is rotatably connected in the bearing hopper, a stirring discharging motor is mounted on the rack, two sections of discharging helices are mounted on the stirring discharging shaft, suspension arms are correspondingly hinged on the front portion and the rear portion of the rack, a second-stage screening basket is arranged below the bearing hopper, a supporting shaft rotatably connected on the suspension arms is mounted on the second-stage screening basket, a swinging driving device is further mounted on the rack, and a receiving hopper is mounted at the bottom of the rack. The multistage-screening fine screening machine can realize multistage screening of materials, is small in occupied area and low in enterprise investment cost, and has the advantages of high screening efficiency and high unloading efficiency.

Description

The meticulous screening machine of multi-stage screening

Technical field

The utility model relates to the meticulous screening machine of a kind of multi-stage screening.

Background technology

At present, the structure of existing screening machine comprises frame, is elasticly connected with screening basket in frame, on screening basket, vibrating motor is housed, and makes screening basket produce shake, thereby realize the screening of material by the vibrations of vibrating motor.Because the vibration frequency of vibrating motor is too frequent, there is the shortcoming that screening efficiency is low while sieving for the larger material of grain graininess difference in the screening machine of this structure, and the screening basket nature discharging that need to be obliquely installed of this screening machine, and discharge rate is slow.And when needs carry out multi-stage screening, existing screening machine is difficult to process, and multiple screening machines need to be set by belt conveyor parallel connection, and its floor space is large, investment is large, causes production cost to increase.

Utility model content

The technical problems to be solved in the utility model is to provide that a kind of screening efficiency is high, discharge rate is fast and the meticulous screening machine of multi-stage screening of multi-stage screening simultaneously.

For solving the problems of the technologies described above, the meticulous screening machine of multi-stage screening providing comprises frame, its design feature is: the front and rear of frame top is rotatably connected to respectively back shaft and driving shaft, the power set that order about drive shaft turns are housed in frame, crank is equipped with at the both ends of driving shaft, on back shaft, be hinged with the one-level screening basket being obliquely installed, between the rear end of screening basket and upper crank, be hinged with connecting rod, the hopper of accepting that is positioned at one-level screening basket below is housed in frame, accept in hopper, to be rotatably connected to be positioned at and accept the stirring discharging axle that the top of feed hopper bottom discharging opening arranges, in frame, be equipped with to drive and stir the stirring discharging motor that discharging axle rotates, stir on discharging axle two sections of discharging spirals that rotation direction is contrary are housed, the front and rear correspondence of frame is hinged with and is positioned at the suspension arm of accepting hopper both sides, the below of accepting hopper is provided with the secondary sieve basket that at least one deck is obliquely installed, the bottom of secondary sieve basket and one-level screening basket is equipped with screen cloth, on secondary sieve basket, the back shaft being rotatably connected on suspension arm is housed, the oscillatory gearing mechanism that drives suspension arm swing is also housed in frame, the bottom of frame is also equipped with and is positioned at receiving hopper for the secondary sieve basket below of below.

Described oscillatory gearing mechanism comprises the lower crank that is rotatably connected in frame and is connected in frame and engine that driving crank rotates, between lower crank and suspension arm, lower link is housed.

Secondary sieve basket is set altogether, and described one-level screening basket is from going to rear-inclined upwards to arrange, and secondary sieve basket is from going to rear-inclined to arrange downwards, and described receiving hopper is tilted to lower setting from its horizontal opposite side of a horizontal side direction of frame.

Described power set comprise the engine being connected in frame, and the power output shaft of described driving shaft and engine is in transmission connection by sprocket wheel chain.

Adopt after said structure, material enters from the feed hopper at top, by power set, order about drive shaft turns, by crank, connecting rod drives the front portion of one-level screening basket to teetertotter, when one-level screening basket teetertotters, large granular materials after screening can be unloaded it fast by the uphill process at its rear portion, large granular materials flows out from the inclination lower extending end that goes out one-level screening basket, small particles material leaks down to fall into accept hopper from one-level screening basket bottom, by oscillatory gearing mechanism, order about suspension arm swing again, thereby the swing of secondary sieve basket is screened, the bulky grain of screening flows out from the inclination lower extending end of secondary sieve basket, the material of smallest particles is caught water conservancy diversion by receiving hopper, stirring arranging of discharging axle and discharging spiral can make the material falling from one-level screening basket disperse rapidly, thereby prevent the material conglomeration that self-supporting receiving hopper falls, improve screening efficiency.In sum, the utility model compact conformation, manufacture, installation, easy to operate can be carried out multi-stage screening to material simultaneously, and floor space is little, company investment cost is low, and has advantages of that screening efficiency is high and discharging efficiency is high.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the structural representation of a kind of most preferred embodiment of the utility model;

Fig. 2 be in Fig. 1 A to structural representation.

The specific embodiment

The meticulous screening machine of multi-stage screening as shown in Figure 1, it comprises frame 1, the front and rear of frame 1 top is rotatably connected to respectively back shaft 2 and driving shaft 3, in frame 1, be equipped with and order about the power set that driving shaft 3 rotates, power set comprise the engine 15 being connected in frame 1, described driving shaft 3 is in transmission connection by sprocket wheel chain with the power output shaft of engine 15, this engine 15 can be buncher, thereby can accurately control the rotating speed of driving shaft 3, described driving shaft 3 is in transmission connection by sprocket wheel chain with the power output shaft of engine 15, crank 4 is equipped with respectively at the both ends of driving shaft 3, on back shaft 2, be hinged with the one-level screening basket 5 being obliquely installed, otic placode is equipped with in the rear end of one-level screening basket 5, between otic placode and upper crank 4, be hinged with connecting rod 6, two upper cranks 4 are set 2 drivings are carried out in one-level screening basket 5 front portions, make the swing of one-level screening basket 5 more stable, in frame 1, be equipped be positioned at one-level screening basket 5 belows accept hopper 7, the bottom of accepting hopper 7 is provided with discharging opening, accept in hopper 7 and be rotatably connected to and be positioned at the stirring discharging axle 17 that discharging opening top arranges, in frame, be equipped with to drive and stir the stirring discharging motor 20 that discharging axle 17 rotates, stir on discharging axle 17 two sections of discharging spirals 18 that rotation direction is contrary are housed, the middle part of two sections of discharging spirals 18 offset and length consistent, when granule materials is when one-level screening basket 5 bottom dump enter to accept hopper 7, stirring discharging motor 20 drives stirring discharging axle 17 to rotate, two sections of discharging spirals 18 can disperse whole group's uniform granular material, be convenient to disperse to drop down onto on secondary sieve basket 9, the front and rear correspondence of frame 1 is hinged with and is positioned at the suspension arm 8 of accepting hopper 7 both sides, the below of accepting hopper 7 is provided with the secondary sieve basket 9 that at least one deck is obliquely installed, the bottom of secondary sieve basket 9 and one-level screening basket 5 is equipped with screen cloth, on secondary sieve basket 9, the back shaft 10 being rotatably connected on suspension arm 8 is housed, the oscillatory gearing mechanism that drives suspension arm 8 swings is also housed in frame 1, the bottom of frame 1 is also equipped with and is positioned at the receiving hopper 11 of secondary sieve basket 9 belows of below.

As shown in Figure 1, described oscillatory gearing mechanism comprises the lower crank 12 being rotatably connected in frame 1 and is connected in frame 1 and engine 13 that driving crank rotates, between lower crank 12 and suspension arm 8, lower link 14 is housed.

As depicted in figs. 1 and 2, secondary sieve basket 9 is set in the present embodiment altogether, described one-level screening basket 5 is from going to rear-inclined upwards to arrange, the front end of one-level screening basket 5 can also be connected with deflector 19, above-mentioned material baffle 18 is positioned at the front of this deflector 19, secondary sieve basket 9 is from going to rear-inclined to arrange downwards, described receiving hopper 11 is tilted to lower setting from its horizontal opposite side of a horizontal side direction of frame 1, this set makes the material of the largest particles discharge from the front end of one-level screening basket 5, the material of intermediate particle is discharged from the rear end of secondary sieve basket 9, the material of smallest particles flows to a horizontal sidepiece of frame from the receiving hopper water conservancy diversion of its bottom, thereby by multi-direction the material of variable grain size discharge, prevent material discharge process in there is rerolling.

As shown in Figure 1, the bottom of described one-level screening basket 5 is connected with the hinged cover 16 that is inverted U, and described hinged cover 16 covers are buckled on back shaft 2, one-level screening basket 5 can be unloaded from back shaft 2, and maintenance is easy for installation and maintenance.

The above is specific constructive form of the present utility model; the utility model is not restricted to the described embodiments; the art personnel, the equivalent variations based on concrete structure on the utility model and parts are replaced all in protection domain of the present utility model.

Claims

1. the meticulous screening machine of multi-stage screening, comprise frame, it is characterized in that: the front and rear of frame top is rotatably connected to respectively back shaft and driving shaft, the power set that order about drive shaft turns are housed in frame, crank is equipped with at the both ends of driving shaft, on back shaft, be hinged with the one-level screening basket being obliquely installed, between the rear end of one-level screening basket and upper crank, be hinged with connecting rod, the hopper of accepting that is positioned at one-level screening basket below is housed in frame, accept in hopper, to be rotatably connected to be positioned at and accept the stirring discharging axle that the top of feed hopper bottom discharging opening arranges, in frame, be equipped with to drive and stir the stirring discharging motor that discharging axle rotates, stir on discharging axle two sections of discharging spirals that rotation direction is contrary are housed, the front and rear correspondence of frame is hinged with and is positioned at the suspension arm of accepting hopper both sides, the below of accepting hopper is provided with the secondary sieve basket that at least one deck is obliquely installed, the bottom of secondary sieve basket and one-level screening basket is equipped with screen cloth, on secondary sieve basket, the back shaft being rotatably connected on suspension arm is housed, the oscillatory gearing mechanism that drives suspension arm swing is also housed in frame, the bottom of frame is also equipped with and is positioned at receiving hopper for the secondary sieve basket below of below.

2. the meticulous screening machine of multi-stage screening according to claim 1, it is characterized in that: described oscillatory gearing mechanism comprises the lower crank that is rotatably connected in frame and is connected in frame and engine that driving crank rotates, between lower crank and suspension arm, lower link is housed.

3. the meticulous screening machine of multi-stage screening according to claim 1 and 2, it is characterized in that: secondary sieve basket is set altogether, described one-level screening basket is from going to rear-inclined upwards to arrange, secondary sieve basket is from going to rear-inclined to arrange downwards, and described receiving hopper is tilted to lower setting from its horizontal opposite side of a horizontal side direction of frame.

4. the meticulous screening machine of multi-stage screening according to claim 1 and 2, is characterized in that: described power set comprise the engine being connected in frame, the power output shaft of described driving shaft and engine is in transmission connection by sprocket wheel chain.