CN107716269B - A drum type sorting screen - Google Patents

Abstract

The invention discloses a drum-type separating screen, which comprises: a drum-type screen which is obliquely arranged at a certain angle with the horizontal plane; the driving wheel comprises a rotating shaft and a hub sleeved on the rotating shaft; the hub comprises a plurality of hub brackets; a follower wheel; one end of the cross beam is fixedly connected with a hub bracket, and the other end of the cross beam is fixedly connected with the driven wheel; the bracket is arranged in parallel with the rotating shaft of the driving wheel; the motor is arranged on the bracket and is fixedly connected with the bracket; the supporting plate is fixedly arranged opposite to the bracket at a certain included angle and is opposite to the bracket; the fixed support rod is fixedly arranged at one end of the bracket, which is close to the support plate; the support and the supporting plate clamp and fix the supporting rod; the adjustable heightening mechanism is arranged at one end, far away from each other, of the support and the support plate; one end of the adjustable heightening mechanism is connected with the bracket, and the other end of the adjustable heightening mechanism is connected with the supporting plate. The drum-type separating screen can avoid the deflection of the cross beam of the screen and can adjust the inclination angle of the output shaft of the motor.

Description

A drum type sorting screen

technical field

The invention relates to the technical field of sorting screens, in particular to a drum type sorting screen.

Background technique

Sorting screen is a type of screening equipment that distinguishes solid particles by particle size. The common sorting screen is to place the solid particles to be sorted in the screen, vibrate the screen, use the gravity of the solid particles themselves, and control the mesh size of the screen to separate the solid particles according to a certain particle size. In industrial production, vibrating sorting screens are widely used, and industries such as ore sorting, plastic pellet manufacturing, building material sorting and rice noodle selection are widely used in vibrating sorting screens.

However, vibrating sorting screens often have the following problems: 1. Vibrating sorting screens vibrate violently during operation, so they often generate larger noises; 2. Vibrating sorting screens are simple in action and low in sorting efficiency And the screen is very easy to block; 3. After the vibration sorting and screening is completed, it is necessary to collect the larger-sized solid particles intercepted by the screen.

In view of the above situation, a drum type sorting screen has appeared in the field of sorting and screening. Chinese patent specification CN203635470U discloses a rolling type tea screening machine, which includes a frame, and a cylindrical screen is installed on the frame. The two ends are the driving wheel and the follower wheel respectively. The height of the follower wheel is greater than that of the driving wheel. The middle of the follower wheel has a feeding port. The aperture of the screen gradually increases from the end of the follower wheel to the end of the driving wheel. A collection box is installed under the screen. The middle part of the top of the collection box is opened along the axis, and the shape and size of the opening are matched with the screen mesh, and a follower wheel is installed at the central axis of the end of the driving wheel. The screening machine adopts the rolling screen to replace the traditional vibrating screen plate, which solves the practical problems of the vibrating sorting screen well.

However, the above-mentioned rolling tea sieving machine has gradually exposed some problems in practical application: the beam on the screen is repeatedly subjected to the centrifugal force when the screen rotates for a long time, and the beam gradually shifts. The supporting effect of the trommel is greatly reduced, which leads to the problem of deformation or depression of the flexible screen gradually; in order to ensure the normal operation of the drum screen, the output shaft of the motor and the rotating shaft of the driving wheel should always be kept parallel. Wear and tear, the parallel state of the motor output shaft and the rotating shaft of the driving wheel will gradually deviate, and the drum type tea screening machine cannot adjust the inclination angle of the motor output shaft to maintain the balance with the rotating shaft of the driving wheel.

SUMMARY OF THE INVENTION

In view of the above problems in the prior art, the purpose of the present invention is to provide a drum type sorting screen, which has a simple and reasonable structure, can avoid the deflection of the screen beam, and can adjust the inclination angle of the motor output shaft.

In order to achieve the above object, the technical scheme of the present invention is:

A drum-type sorting screen includes: a drum-type screen, which is inclined at a certain angle to the horizontal plane; a driving wheel includes a rotating shaft and a hub sleeved on the rotating shaft; the hub includes a A number of wheel hub brackets; a follower wheel; a beam, one end of which is fixed to one of the hub brackets, and the other end is fixed to the follower wheel; a bracket, which is arranged in parallel with the rotating shaft of the driving wheel; a motor, which is arranged in the The support is fixed on the support and fixed with the support; a support plate is fixedly arranged at a certain angle relative to the support and is opposite to the support; a fixed support rod is fixedly arranged on the support and the support plate the end that is close to each other; the bracket and the support plate clamp the fixed support rod; the adjustable pad height mechanism is arranged at the end of the bracket and the support plate away from each other; the adjustable pad One end of the high mechanism is connected with the bracket, and the other end is connected with the support plate. One end of the beam is fixedly connected with a piece of the hub bracket, and the other end is fixedly connected with the driven wheel, and the hub bracket is a part of the hub, the beam and the hub move synchronously and become a whole, The overall stability is greatly enhanced, and the phenomenon of offset is not easy to occur. The fixed support rod is used as the fulcrum of the bracket, and the adjustable pad height mechanism can make the bracket turn around the fixed support rod as the fulcrum, thereby changing the clamp between the bracket and the support plate. angle, so as to change the inclination angle of the output shaft of the motor to adapt to the rotation shaft of the drive wheel, so as to ensure the normal operation of the drum type sorting screen.

As a specific embodiment, the beam and the hub bracket are integrally formed. The integrally formed structure is easy to manufacture and has excellent mechanical strength.

As a specific embodiment, the adjustable pad height mechanism includes: a screw rod, one end of which is penetrated on the support plate, and the other end is penetrated on the bracket; a fixing nut matched with the screw rod, It is arranged on the side of the bracket away from the support plate; several spacer nuts matched with the screw rods are arranged between the support plate and the bracket. By adjusting the position of the bolster nut on the screw rod, the position of the bracket on the screw rod can be adjusted. At the same time, due to the fixed setting of the support plate and the fixed support rod, the support The height of the end that is far away from the support plate can be adjusted, so that the inclination angle of the motor can be adjusted.

As a specific embodiment, the lower end of the drum screen is connected with a first hopper. The first receiving hopper is used for receiving larger granular materials sorted from the drum screen. Larger particles will not be screened out of the trommel screen, and will move from the higher end of the trommel screen to the lower end, until it reaches the lower end of the trommel screen. The opening falls into the first hopper.

As a specific embodiment, a second hopper is provided below the drum screen; a guide pipe inclined to the horizontal plane is connected to the bottom end of the second hopper. The second hopper is used to receive the materials with smaller particles sorted from the trommel screen, and the guide pipe is arranged obliquely, which automatically guides and transmits the materials in the second hopper to a predetermined location. Area.

As a specific embodiment, the drum-type sorting screen further includes a frame for arranging the drum-type screen; the bottom end of the frame is connected with a fixed support base. The frame supports the trommel screen, and the fixed support base supports the frame.

Further, the fixed support base includes: a bolt; a support piece sleeved on the bolt and fixedly connected with the bolt; the bottom end face of the frame is provided with a screw hole matched with the bolt. The support piece is used as a foot, and the height of the frame can be easily adjusted in all directions through the cooperation of the bolt and the screw hole, which is convenient to coordinate the overall balance and stability of the drum sorting screen. .

As a specific embodiment, the support sheet is provided with a strip-shaped fixing hole. The strip-shaped fixing holes can be fixed with screws, and can be used for fixing on supports such as iron frames. Disassembly is very convenient.

As a specific embodiment, a baffle is provided above the drum screen. The baffle can prevent dust from falling on the trommel screen, contaminating the trommel screen, or clogging the trommel screen.

As a specific embodiment, a closing cover is connected to the higher end of the drum screen; and a feeding hopper is connected to the closing cover. The closing cover can not only prevent sundries from falling into the drum screen, but also prevent materials from being thrown out of the drum screen. The communicating hoppers on the closing cover are used for feeding materials.

For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings.

Description of drawings

1 is a schematic diagram of the overall three-dimensional structure of a drum type sorting screen according to an embodiment of the present invention;

2 is a front view of a drum type sorting screen according to an embodiment of the present invention;

3 is a side view of a drum type sorting screen according to an embodiment of the present invention;

FIG. 4 is an enlarged structural diagram of a drum-type sorting screen at A in FIG. 2 according to an embodiment of the present invention;

FIG. 5 is an enlarged structural view of a drum type sorting screen at B in FIG. 1 according to an embodiment of the present invention.

reference number

1——Drum screen 110——Hoop 120——Beam 2——Driving wheel

210--rotating shaft 220--hub 221--hub bracket 3--following wheel

4--bracket 5--motor 6--support plate 7--fixing support rod

8--protective baffle 9--outlet pipe 10--first hopper 11--outlet pipe cover

12--Fixed support base 12A--Support sheet 12B--Bolt 12C--Strip fixing hole

13--guide pipe 14--frame 15--second hopper 16--feed hopper

17--Closing cover 18--Screw 19--Fixing nut 20--Height nut

21--Pulley 22--Pulley bracket 23--Side branch 24--Baffle plate

Detailed ways

Please refer to Figures 1-3, a trommel sorting screen, which includes: a frame 14, on which a trommel screen 1 is installed, and the trommel screen 1 is inclined at a certain angle to the horizontal plane; The driving wheel 2 includes a rotating shaft 210 and a hub 220 sleeved on the rotating shaft 210; the hub 220 includes several hub brackets 210; the follower wheel 3, in order to reduce the resistance of the follower wheel 3, the frame 14 is connected with a The pulley bracket 22, the pulley bracket 22 is connected with the pulley 21, and the follower wheel 3 is arranged on the pulley wheel 21; the cross beam 120, one end of which is fixedly connected with a hub bracket 4, and the other end is fixedly connected with the follower wheel 3; the bracket 4, which is connected with the drive The rotating shaft 210 of the wheel 2 is arranged in parallel; the motor 5 is arranged on the bracket 4 and is fixedly connected with the bracket 4, the motor 5 drives the driving wheel 2 to run through the transmission belt, and for the sake of safety, a protective baffle 8 is provided around the transmission belt; The plate 6 is fixedly arranged at a certain angle relative to the bracket 4 and faces the bracket 4; the fixed support rod 7 is fixedly arranged at the end of the bracket 4 and the support plate 6 that are close to each other; the bracket 4 and the support plate 6 are clamped Fixed support rod 7; adjustable pad height mechanism, which is arranged at the end of the bracket 4 and the support plate 6 away from each other; one end of the adjustable pad height mechanism is connected with the bracket 4, and the other end is connected with the support plate 6.

One end of the beam 120 is fixedly connected with a wheel hub bracket 4, and the other end is fixedly connected with the follower wheel 3. At the same time, the wheel hub bracket 221 is a part of the wheel hub 220. The beam 120 and the wheel hub 220 move synchronously and become a whole. Offset occurs. Therefore, preferably, the beam 120 and the hub bracket 221 are integrally formed, and the beam 120 is formed by bending the entire sheet of the hub bracket 221 . The fixed support rod 7 is used as the fulcrum of the bracket 4, and the adjustable pad height mechanism can make the bracket 4 turn around the fixed support rod 7 as the fulcrum, thereby changing the angle between the bracket 4 and the support plate 6, thereby changing the output of the motor 5 The inclination angle of the shaft is adapted to the rotating shaft 210 of the driving wheel 2 to ensure the normal operation of the drum type sorting screen.

In order to further stabilize the cross beam 120 , a hoop 110 is arranged on the drum screen 1 in the direction, and the hoop 110 fastens and binds the cross beam 120 .

In order to prevent external dust and other sundries from falling into the drum screen 1 or blocking the mesh holes of the drum screen 1 , a baffle 24 is installed on the frame 14 , and the baffle 24 covers the top of the drum screen 1 . Of course, the baffle plate 24 can also be designed to have a U-shaped structure with bent edges to protect the top and both sides of the trommel screen 1 . In order to better observe the operation of the trommel screen 1 and the condition of the materials in the trommel screen 1, the baffle 24 can be made of transparent materials such as glass or transparent plastic that are convenient for observation.

The higher end of the trommel screen 1 is the feeding port, and the feeding port is provided with a closing cover 17. The closing cover 17 can prevent the material from being thrown out from the feeding port, and can also prevent external sundries from falling into the feeding port. A feeding hopper 16 is communicated and connected to the closing cover 17, and the feeding hopper 16 is used as a feeding inlet.

The lower end of the trommel screen 1 is the discharge port for the material with larger particles. After the material is screened in the trommel screen 1, the larger particles move along the higher end of the trommel screen 1 which is set obliquely. The lower end moves up to the port on the lower end of the trommel 1. A first receiving hopper 10 is connected to the lower end of the trommel screen 1, which is used to receive the materials with larger particles screened from the trommel screen 1. A lead-out pipe 9 can also be arranged inside the first hopper 10 , and the material in the first hopper 10 can be transported to a preset area through the lead-out pipe 9 without disassembling the first hopper 10 .

A second receiving hopper 15 is arranged below the drum sorting screen 1 , and the second receiving hopper 15 is used for receiving the materials with smaller particles screened from the drum screen 1 . The lower part of the second hopper 15 is connected with a guide pipe 13 inclined to the horizontal plane, and the material can be automatically guided to a preset area by the guide pipe 13 . In order to better convey the material in the second hopper 15, the second hopper 15 is preferably designed in a funnel shape. The side of the guide pipe 13 can also be connected to the side branch pipe 23, so that the conveying direction of the material can be more selected.

Among them, the function of the above-mentioned adjustable pad height mechanism is to be arranged between the end of the bracket 4 and the support plate 6 away from each other, and to change the distance between the end of the bracket 4 and the support plate 6 away from each other, thereby changing the bracket 4 and the support plate. 6 , thereby changing the inclination angle of the output shaft of the motor 5 so as to adapt to the rotating shaft 210 of the driving wheel 2 .

Please refer to FIG. 4 , as a preferred embodiment, the adjustable pad height mechanism includes: a screw rod 18 , one end of which is penetrated on the support plate 6 and the other end is penetrated on the bracket 4 ; a fixing nut matched with the screw rod 18 19 , which is arranged on the side of the bracket 4 away from the support plate 6 ; a number of boost nuts 20 matched with the screw rod 18 are arranged between the support plate 6 and the bracket 4 . By adjusting the position of the spacer nut 20 on the screw 18 and using the fixing nut 19 to fix it, the distance between the bracket 4 and the end of the support plate 6 away from each other can be changed, thereby changing the inclination angle of the output shaft of the motor 5 .

Of course, general alternatives to the above-described embodiments will be readily conceivable to those skilled in the art. For example, a telescopic device is provided between the ends of the bracket 4 and the support plate 6 that are far away from each other, or the spacer nut 20 is replaced with a compression spring. All these substitutions and modifications should fall within the protection scope of this patented technology.

As shown in FIG. 4, the fixed support rod 7 is clamped by the bracket 4 and the support plate 6 between the ends of the bracket 4 and the support plate 6 that are close to each other. Make sure that the bracket 4 is pressed against the fixed support rod 7 . In order to make the bracket 4 and the support plate 6 and the fixed support rod 7 more stable when the angle between the bracket 4 and the support plate 6 is adjusted, the end of the bracket 4 and the support plate 6 in contact with the fixed support rod 7 is preferably designed as a slope surface. If the surface includes a flat surface or a concave arc shape, the slope surface and the fixed support rod 7 have better compatibility with each other, which is beneficial to the stability and smoothness of the bracket 4 turning around the fixed support rod 7 .

Please refer to FIG. 1 , the bottom end of the rack 14 is connected with a fixed support base 12 for supporting the rack 14 . Please refer to FIG. 5 , the fixed support base 12 includes: a bolt 12B; a support piece 12A, which is sleeved on the bolt 12B and is fixedly connected with the bolt 12A, and a strip-shaped fixing hole 12C is formed on the support piece 12A; The end face is provided with screw holes which are matched with the bolts 12B. By screwing the bolts 12B into or out of the screw holes on the bottom end surface of the frame 14, the height of the frame 14 in this orientation can be changed, and the overall stability of the drum sorting screen can be easily adjusted. The strip-shaped fixing holes 12C can be combined with screws or pins for installation and fixing. As shown in FIG. 5 , the support piece 12A is preferably designed and manufactured in the shape of a water drop. The bolt 12A passes through the support piece 12A, and a nut is used to press and fix the support piece 12A on the bolt 12A. After loosening the nut, the direction of the support piece 12A can also be rotated. , which is beneficial for the drum type sorting screen to adapt to various application environments.

The present invention is not limited to the above-mentioned embodiments. If various changes or deformations of the present invention do not depart from the spirit and scope of the present invention, if these changes and deformations belong to the claims of the present invention and the equivalent technical scope, then the present invention is also Intended to contain these alterations and variants.

Claims (10)

1. a drum type sorting screen, is characterized in that, comprises: A trommel screen, which is inclined at a certain angle to the horizontal plane; a driving wheel, which includes a rotating shaft and a hub sleeved on the rotating shaft; The hub includes several hub brackets; follower wheel; a beam, one end of which is fixedly connected to one of the hub brackets, and the other end is fixedly connected to the driven wheel; a bracket, which is arranged in parallel with the rotating shaft of the driving wheel; a motor, which is arranged on the bracket and is fixedly connected to the bracket; a support plate, which is fixedly arranged at a certain angle relative to the bracket and is directly opposite to the bracket; a fixed support rod, which is fixedly arranged at the end of the bracket and the support plate close to each other; the bracket and the support plate clamp the fixed support rod; Wherein, the bracket and/or the support plate is in contact with the fixed support rod through an arc surface; an adjustable pad height mechanism, which is arranged at the end of the bracket and the support plate away from each other; One end of the adjustable pad height mechanism is connected with the bracket, and the other end is connected with the support plate. 2. The drum type sorting screen according to claim 1 is characterized in that: The beam and the hub bracket are integrally formed. 3. The drum type sorting screen according to claim 1 is characterized in that: The adjustable pad height mechanism includes: a screw, one end of which is penetrated on the support plate, and the other end is penetrated on the support; a fixing nut matched with the screw rod, which is arranged on the side of the bracket away from the support plate; Several spacer nuts matched with the screw rods are arranged between the support plate and the bracket. 4. The drum type sorting screen according to claim 1 is characterized in that: A first hopper is connected to the lower end of the drum screen. 5. drum type sorting screen according to claim 1 is characterized in that: A second hopper is arranged below the trommel screen; The bottom end of the second hopper is communicated and connected with a guide pipe inclined to the horizontal plane. 6. The drum type sorting screen according to claim 1 is characterized in that: The trommel sorting screen also includes a frame for arranging the trommel screen; The bottom end of the frame is connected with a fixed support base. 7. The drum type sorting screen according to claim 6 is characterized in that: The fixed support base includes: bolt; a support piece, which is sleeved on the bolt and is fixedly connected with the bolt; The bottom end face of the frame is provided with screw holes matched with the bolts. 8. The drum type sorting screen according to claim 7 is characterized in that: The support sheet is provided with a strip-shaped fixing hole. 9. The drum type sorting screen according to claim 1 is characterized in that: A baffle is provided above the drum screen. 10. The drum type sorting screen according to claim 1 is characterized in that: The higher end of the trommel screen is connected with a closing cover; A feeding hopper is communicated and connected on the closing cover.

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