Trisection roller screening device

Abstract

The utility model relates to the technical field of screening equipment, in particular to a trisection roller screening device. Comprising a machine frame, a roller mechanism which is obliquely installed is arranged on the machine frame, a material distributing bin is arranged at the lower end of the machine frame and located under the roller mechanism, a discharging mechanism connected with the roller mechanism is further arranged at one end of the machine frame, and a set of rolling wheel mechanisms for supporting the roller mechanism is further arranged in the machine frame. The roller mechanism comprises a plurality of sections of roller bodies, a screen wrapping the roller bodies, spiral blocking pieces installed in the roller bodies, fixing frames located in the middles of the roller bodies on the two sides, bearing seats installed in the middles of the fixing frames, and rotating shafts located in the centers of the roller bodies and rotationally connected with the bearing seats. The cross-shaped supporting frame is arranged between the rotating shaft and the barrel body; and the driving assembly is fixed on the rack. An integral through shaft structure is adopted for transmission, meanwhile, the stability of a transmission mechanism can be kept, the screening efficiency is high, operation is stable, and the maintenance cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to a screening equipment technical field, concretely relates to a three-part drum screening device. BACKGROUND

[0002] The drum screen is a kind of machinery that is widely applied in sorting technology, is controlled by the particle size of particle to garbage sorting, and has high sorting precision.The cylinder of the drum screen is generally divided into several sections, which can be determined according to specific conditions, and the screen holes are arranged from small to large, and the screen hole diameters on each section are same.The existing drum screen is composed of multiple cylinder bodies, and the size is generally long, which has the advantages that different aperture screen meshes can be arranged on different cylinder bodies to improve screening effect, but there are problems of complex transmission structure and low transmission efficiency, and when driven by a through shaft structure, the cylinder body will swing greatly when rolling with load, and the shaft body will be shaken and damaged during long-time work, and it is also not conducive to long-time processing. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a three-part drum screening device, which adopts a whole through shaft structure for transmission, can maintain the stability of transmission mechanism, has high screening efficiency, stable operation and low maintenance cost.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a three-part drum screening device, which comprises a rack, an inclined drum mechanism arranged on the rack, a material distribution bin arranged at the lower end of the rack, the material distribution bin being located directly below the drum mechanism, a discharge mechanism connected with the drum mechanism arranged at one end of the rack, a roller mechanism arranged in the rack for supporting the drum mechanism, the drum mechanism comprising multiple cylinder bodies, screen meshes wrapped on the cylinder bodies, spiral baffles arranged in the cylinder bodies, fixing frames arranged at the middle parts of the two side cylinder bodies, bearing seats arranged at the middle parts of the fixing frames, rotating shafts arranged at the central parts of the cylinder bodies and rotatably connected with the bearing seats, cross support frames arranged between the rotating shafts and the cylinder bodies, and a driving assembly fixed on the rack, the driving assembly being in transmission connection with the rotating shafts.

[0005] Further, the cylinder body is composed of two end rings and connecting rods distributed around the rings, the spacing between adjacent connecting rods is much larger than the particle size of the material, the connecting rods provide support, and the rings are used to connect two adjacent cylinder bodies.

[0006] Further, the screen meshes are wrapped on the cylinder bodies in the order of small inlet and large outlet, and are composed of three groups of screen meshes with different aperture sizes, and the screen mesh aperture sizes on each cylinder body are same.

[0007] Further, the material distribution bin is provided with three groups of bin hoppers and discharge outlets, the upper parts of the three groups of bin hoppers are respectively corresponding to the positions of screen meshes with same aperture size, and the discharge outlets are connected with the bin hoppers and face outward.

[0008] Further, the roller mechanism comprises a support plate connected to the inside of the frame, a bottom plate vertically connected to the support plate, a roller seat bolted to the bottom plate, and a roller rollingly connected to the roller seat, the bottom plate is provided with a slot hole perpendicular to the direction of the frame, the roller seat is fixed in any one of the slot holes by bolts, and a reinforcing rib is further arranged between the support plate and the bottom plate, and the roller is connected to the end of the cylinder for support.

[0009] Further, the driving assembly comprises a motor seat, a driving motor, a belt pulley and a transmission belt, the motor seat is fixedly installed on one side surface of the frame, the driving motor is fastened to the motor seat by bolts, the motor shaft is aligned with the end surface of the rotating shaft, the driving motor and the rotating shaft are respectively provided with a belt, and the belts are connected by the transmission belt, the bottom surface of the motor seat is further provided with an inclined support frame connected to the frame, and the driving motor is electrically connected with an external power supply.

[0010] The roller mechanism can be adjusted in position on the frame, the distance between the two corresponding roller mechanisms can be adjusted according to the outer diameter of the cylinder, the roller mechanism is convenient for supporting the roller mechanism, meanwhile, the stability of the transmission mechanism can be maintained, the screening efficiency is high, the operation is stable, the maintenance cost is low, and the structure is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model.

[0012] Figure 2 It is a top view of the utility model.

[0013] Figure 3 It is a side view of the utility model.

[0014] Figure 4 It is a structural schematic view of the screen in the utility model.

[0015] Figure 5 It is a structural schematic view of the roller mechanism.

[0016] In the drawing: 1, frame; 2, roller mechanism; 3, material distributing bin; 4, discharging mechanism; 5, roller mechanism; 6, cylinder; 7, screen; 8, spiral baffle; 9, fixed frame; 10, bearing seat; 11, rotating shaft; 12, cross support frame; 13, driving assembly; 14, ring sleeve; 15, connecting rod; 16, bin; 17, discharge port; 18, support plate; 19, bottom plate; 20, roller seat; 21, roller; 22, slot hole; 23, reinforcing rib; 24, motor seat; 25, driving motor; 26, inclined support frame. DETAILED DESCRIPTION

[0017] The utility model will be further explained in connection with the drawings and specific embodiments.

[0018] Embodiment: As shown in the figure, a kind of three-part drum screen device of the utility model, including rack 1, the rack 1 is provided with the drum mechanism 2 of inclined installation, rack 1 lower end is provided with the distribution bin 3, the distribution bin 3 is located the directly below of drum mechanism 2, the one end of rack 1 is also provided with the discharge mechanism 4 connected with drum mechanism 2, the rack 1 is also provided with a group of gyro wheel 21 mechanism 5 of supporting drum mechanism 2, the drum mechanism 2 includes multiple section cylinder 6, the screen 7 of cladding on cylinder 6, the helical baffle 8 installed in cylinder 6, the fixed frame 9 in the middle of two side cylinder 6, the bearing seat 10 installed in the middle of fixed frame 9, the rotating shaft 11 in the central part of cylinder 6 and with bearing seat 10 rotationally connected, the cross support frame 12 installed between rotating shaft 11 and cylinder 6 and the driving assembly 13 fixed on rack 1, the driving assembly 13 is transmission connection with rotating shaft 11.Rack 1 bottom is provided with adjustable pad, the height of rack 1 can be fine-tuned, the inclination angle of drum mechanism 2 on rack 1 is provided with ten degrees, it is convenient for material to be quickly rolled down under the action of gravity and carry out screening, simultaneously, for damp or viscous material, it can increase its rolling speed, prevent clogging screen 7, the bolt baffle in cylinder 6 rotates under the drive of rotating shaft 11, transports material from low to high, repeatedly carries out screening, improves screening efficiency and enhances screening effect, and discharge mechanism 4 is used to collect and export other sundries or large particles after screening.

[0019] Cylinder 6 is composed of the ring sleeve 14 of two ends and the connecting rod 15 distributed on the ring sleeve 14, the interval between adjacent connecting rod 15 is much larger than the particle size of material, and the connecting rod 15 is used to provide support, and the ring sleeve 14 is used to connect two adjacent cylinder 6; when using, three groups of structurally identical cylinder 6 are used to form drum main body, two cylinder 6 are fixedly connected together by bolt and ring sleeve 14 between the two, and support is provided by connecting rod 15, and since the interval of connecting rod 15 is large, it does not affect the screening and falling of material, and the connecting rod 15 and the ring sleeve 14 can also be used as connecting components of screen 7, the length dimensions of the three groups of cylinder 6 are designed according to 1:2:3, and screen 7 with different aperture is sequentially connected on each cylinder 6. Since the drum is inclinedly installed, material will roll down in cylinder 6 due to gravity, so feeding is carried out at high place, and discharging is carried out at low place, the aperture of screen 7 at feeding port is smallest, and the length of cylinder 6 is longest, the aperture of screen 7 at discharging port 17 is largest, and the length of cylinder 6 is shortest, so that the screening efficiency is improved when segmented screening, and clogging is prevented.

[0020] The screen 7 is sequentially wrapped on the cylinder body 6 in order of the smaller inlet and the larger outlet 17, and is composed of three groups of screen 7 with different aperture, and the aperture of the screen 7 on each cylinder body 6 is the same; in use, the screen 7 is wrapped on the cylinder body 6 by bolts, and different aperture screen 7 is used according to the position of the cylinder body 6, which can not only enhance the screening effect and perform three-stage screening, but also facilitate the replacement of the screen 7 and reduce the maintenance cost and difficulty.

[0021] The distribution bin 3 is provided with three groups, including the hopper 16 and the outlet 17, the upper part of the three groups of hopper 16 corresponds to the position of the screen 7 with the same aperture, and the outlet 17 is connected with the hopper 16 towards the outside. The three groups of hopper 16 correspond to different screens 7, and a partition plate is further arranged between the adjacent two hoppers 16, so that the materials falling from the screen 7 can be accurately introduced into the corresponding hopper 16 for collection and then guided out from the outlet 17.

[0022] The roller 21 mechanism 5 includes a support plate 18 connected with the inside of the frame 1, a bottom plate 19 vertically connected on the support plate 18, a roller seat 20 bolted with the bottom plate 19, and a roller 21 rollingly connected on the roller seat 20, the bottom plate 19 is provided with a slot hole 22 perpendicular to the direction of the frame 1, the roller seat 20 is fixed at any position in the slot hole 22 by bolts, and a reinforcing rib 23 is further arranged between the support plate 18 and the bottom plate 19. The roller 21 is connected with the end of the cylinder body 6 for support, and the interval between the two rollers 21 can be adjusted in use, that is, the position of the roller 21 on the roller mechanism 2 can be adjusted, so as to facilitate the auxiliary support and rotation following of the cylinder body 6 with different inclinations.

[0023] The driving assembly 13 includes a motor seat 24, a driving motor 25, a belt pulley and a transmission belt, wherein the motor seat 24 is fixedly installed on one side surface of the frame 1, the driving motor 25 is fastened on the motor seat 24 by bolts, so that the motor shaft is aligned with the end surface of the rotating shaft 11, the driving motor 25 and the rotating shaft 11 are respectively provided with a belt, and are connected by a transmission belt, and the bottom surface of the motor seat 24 is further provided with a diagonal support frame 26 connected with the frame 1, and the driving motor 25 is electrically connected with an external power supply. Through the external power supply, the driving motor 25 is driven to work, the rotating shaft 11 is driven to rotate through the transmission belt, and the cylinder body 6 is driven to rotate together under the connection of the cross support frame 12, so as to perform screening, and the whole shaft and the bearing seat 10 are adopted for support, which not only can reduce the intermediate transmission mechanism, improve the transmission efficiency, but also can reduce the friction coefficient and wear, and the operation is more stable under the auxiliary support of the roller 21 mechanism 5, and the noise is relatively reduced.

[0024] The utility model discloses a roller mechanism is assisted and supported to the whole axle drive drum mechanism, and can follow rotation, can protect the drum and whole axle under the load rotation of drum mechanism, prevent deformation or wobble and cause damage, secondly, the position of roller mechanism can be adjusted on the frame, can adjust the interval of two corresponding roller mechanisms according to the outer diameter of cylinder, and the stability of transmission mechanism can be kept, and the screening efficiency is high, and the operation is stable, and the maintenance cost is low, and the structure is simple and convenient to use.

[0025] The above is only used to explain the technical scheme of the utility model and is not limited, and other modifications or equivalent replacements of the technical scheme of the utility model made by the ordinary skill in the art should be covered in the claim range of the utility model.

Claims

1. A three-stage drum screening device, characterized in that: The cam is provided with a roller mechanism which is installed obliquely, and a distribution bin is provided at the lower end of the frame, and the distribution bin is located directly below the roller mechanism; a discharging mechanism connected to the roller mechanism is also provided at one end of the frame; a group of roller mechanisms supporting the roller mechanism are also provided in the frame, and the roller mechanism includes a multi-section cylinder, a screen wrapped on the cylinder, a spiral baffle installed in the cylinder, a fixing frame located in the middle of the cylinder on both sides, a bearing seat installed in the middle of the fixing frame, a rotating shaft located in the center of the cylinder and rotatably connected to the bearing seat, a cross support frame installed between the rotating shaft and the cylinder, and a driving assembly fixed to the frame, and the driving assembly is transmission-connected to the rotating shaft.

2. The three-stage drum screening device according to claim 1, characterized in that: The cylinder is composed of ring sleeves at both ends and connecting rods distributed circumferentially on the ring sleeves. The spacing between adjacent connecting rods is much larger than the particle size of the material. The connecting rods are used to provide support, and the ring sleeves are used to connect two adjacent cylinders.

3. The three-section drum screening device according to claim 1, characterized in that: The screens are sequentially coated on the cylinder in the order of small feed opening and large discharge opening, and are composed of three groups of screens with different apertures, and the aperture of the screens on each cylinder is the same.

4. The three-stage drum screening device according to claim 1, characterized in that: The sub-bins are provided with three groups, including bins and discharge ports. The tops of the three groups of bins correspond to the positions of screens with the same aperture, and the discharge ports are connected to the bins toward the outside.

5. The three-section drum screening device according to claim 1, characterized in that: The roller mechanism includes a support plate connected to the inside of the frame, a bottom plate vertically connected to the support plate, a roller seat bolted to the bottom plate, and a roller rollingly connected to the roller seat. A slot hole perpendicular to the direction of the frame is opened on the bottom plate, and the roller seat is fixed at any point in the slot hole by bolts. Reinforcing ribs are also provided between the support plate and the bottom plate, and the roller is connected to the end of the cylinder for support.

6. The three-section drum screening device according to claim 1, characterized in that: The driving assembly includes a motor base, a driving motor, a pulley and a transmission belt, wherein the motor base is fixedly mounted on one side of the frame, the driving motor is fastened to the motor base by bolts so that the motor shaft is aligned with the end face of the rotating shaft, belts are respectively installed on the driving motor and the rotating shaft and are connected by a transmission belt, and an inclined support frame connected to the frame is also provided on the bottom surface of the motor base, and the driving motor is electrically connected to an external power supply.

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