Screen drum of drum screen

Abstract

The utility model relates to the technical field of rotary screens, in particular to a screen drum of a rotary screen, which comprises a first screen drum and a second screen drum positioned on the right of the first screen drum, the right end of the first screen drum is fixedly connected with a first mounting ring, and the right end of the first mounting ring is fixedly connected with two first limiting rings which are symmetrically distributed up and down; the right ends of the two first limiting rings are fixedly connected with second limiting rings which are symmetrically distributed, and the left end of the second screen drum is fixedly connected with a second mounting ring. Two first limiting rings and two second limiting rings are rotated into two first limiting grooves and two second limiting grooves correspondingly, and then two limiting rods are inserted into two limiting holes in the same side correspondingly, so that the first screen drum and the second screen drum are fixed, and other screen drums are fixed according to the same principle; and therefore, the effect of conveniently increasing or reducing the number of the screen drums according to actual production so as to adjust the length of the screen drums is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of drum screens, in particular to a screen drum of a drum screen. Background Art

[0002] The drum device is installed on the frame at an angle. The motor is connected to the drum device through a coupling via a reducer, and drives the drum device to rotate around its axis. When the material enters the drum device, the material on the screen surface flips and rolls due to the tilt and rotation of the drum device, so that the qualified material (screened product) is discharged through the discharge port at the bottom of the rear end of the drum, and the unqualified material (screened product) is discharged through the discharge port at the tail of the drum. Due to the flipping and rolling of the material in the drum, the material stuck in the screen hole can be ejected to prevent the screen hole from being blocked. The principle and structure of the drum sand screen, drum screening machine and drum screen are almost the same, but there are differences in people's understanding and name of it.

[0003] The screen cylinder of the existing drum screen is usually a mesh structure, and its length is generally fixed, so it is impossible to increase or decrease the number of screen cylinders according to actual production needs, and then adjust its length. Therefore, it is necessary to propose a screen cylinder of a drum screen to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a screen cylinder of a drum screen, which has the characteristic of being easy to increase or decrease the number of screen cylinders according to actual production to adjust the length of the screen cylinder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screen drum of a drum screen, comprising a first screen drum and a second screen drum located to the right of the first screen drum, the right end of the first screen drum is fixedly connected to a first mounting ring, the right end of the first mounting ring is fixedly connected to two first limiting rings symmetrically distributed up and down, the right ends of the two first limiting rings are fixedly connected to symmetrically distributed second limiting rings, the left end of the second screen drum is fixedly connected to a second mounting ring, the left end of the second mounting ring is fixedly connected to two arc blocks symmetrically distributed up and down, the left ends of the two arc blocks are each provided with a first limiting groove matching the two first limiting rings, the right ends of the inner walls of the two first limiting grooves are each provided with a second limiting groove matching the two second mounting rings, and the front and rear sides of the left ends of the first mounting ring and the second mounting ring are both penetrated by limiting holes located between the two second limiting rings.

[0006] In order to prevent the first screen drum and the second screen drum from rotating relative to each other, a screen drum of a drum screen according to the utility model is preferably provided with a matching limiting rod between the insides of two limiting holes on the same side.

[0007] In order to facilitate the fixation of the limit rod, as a preferred screen drum of a drum screen of the present invention, the left ends of the two limit rods are fixedly connected with a limit plate in contact with the left end of the first mounting circle, and the outer walls of the two limit rods are penetrated by an R-shaped pin hole located on the right side of the second mounting circle.

[0008] In order to facilitate the two arc blocks to fit with the right side of the first mounting ring, as a preferred screen drum of a drum screen of the utility model, the arc length spacing between the two first limiting rings and the two second limiting rings on opposite sides is greater than the arc length of the two arc blocks.

[0009] In order to facilitate screening, as a preferred screen cylinder of a drum screen of the utility model, the first screen cylinder and the second screen cylinder are both mesh structures.

[0010] In order to prevent the two first limiting rings and the two second limiting rings from being deformed, it is preferred that the two first limiting rings and the two second limiting rings are made of alloy steel as a screen drum of a drum screen of the utility model.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] By respectively rotating the two first limiting rings and the two second limiting rings into the interior of the two first limiting grooves and the two second limiting grooves, due to their mutual cooperation, the positions of the first sieve drum and the second sieve drum can be preliminarily limited, and then the two limiting rods are respectively inserted into the two limiting holes on the same side to complete the fixation of the first sieve drum and the second sieve drum. The same structure can be set on the opposite sides of the first sieve drum and the second sieve drum, and the other sieve drums can be fixed by the same principle, thereby achieving the effect of facilitating increasing or decreasing the number of sieve drums according to actual production to adjust the length of the sieve drum. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the overall front view structure diagram of the utility model;

[0014] Figure 2 This is the external connection structure diagram of the first screen drum of this utility model;

[0015] Figure 3 This is a diagram of the external connection structure of the second screen drum of the utility model.

[0016] In the figure: 1. first screen cylinder; 2. second screen cylinder; 3. first mounting ring; 4. second mounting ring; 5. first limiting ring; 6. second limiting ring; 7. arc block; 8. first limiting groove; 9. second limiting groove; 10. limiting hole; 11. R-shaped pin hole; 12. limiting rod; 13. limiting plate. DETAILED DESCRIPTION

[0017] See also Figures 1 to 3 , a screen drum of a drum screen comprises a first screen drum 1 and a second screen drum 2 located on the right side of the first screen drum 1, the right end of the first screen drum 1 is fixedly connected with a first mounting ring 3, the right end of the first mounting ring 3 is fixedly connected with two first limiting rings 5 ​​symmetrically distributed up and down, the right ends of the two first limiting rings 5 ​​are fixedly connected with symmetrically distributed second limiting rings 6, the left end of the second screen drum 2 is fixedly connected with a second mounting ring 4, the left side of the second mounting ring 4 is fixedly connected with two arc blocks 7 symmetrically distributed up and down, the left ends of the two arc blocks 7 are both provided with first limiting grooves 8 matching the two first limiting rings 5, the right ends of the inner walls of the two first limiting grooves 8 are both provided with second limiting grooves 9 matching the two second mounting rings 4, and the front and rear sides of the left ends of the first mounting ring 3 and the second mounting ring 4 are penetrated with limiting holes 10 located between the two second limiting rings 6.

[0018] In this embodiment: when the first sieve drum 1 and the second sieve drum 2 are to be fixed, the two arc blocks 7 are made to fit with the right side of the first mounting ring 3. At this time, the second sieve drum 2 is rotated, so that the two first limiting rings 5 ​​can enter the interior of the two first limiting grooves 8 respectively, and the two second limiting rings 6 can enter the interior of the two second limiting grooves 9 at the same time. Due to their matching relationship, the positions of the first sieve drum 1 and the second sieve drum 2 can be preliminarily limited until the two limiting holes 10 on the same side are horizontal, and by setting the two limiting holes 10 on the same side, the two limiting rods 12 can be inserted into them, thereby completing the fixation of the first sieve drum 1 and the second sieve drum 2, and the same structure can be set on the opposite side of the first sieve drum 1 and the second sieve drum 2, and the other sieve drums can be fixed by the same principle. When in use, loading and unloading are convenient and quick, so as to achieve the effect of increasing or decreasing the number of sieve drums according to actual production to adjust the length of the sieve drum.

[0019] As a technical optimization solution of the present invention, a matching limiting rod 12 is disposed between the insides of two limiting holes 10 located on the same side.

[0020] In this embodiment, two limiting rods 12 are respectively inserted into the two limiting holes 10 on the same side, thereby preventing the first sieve drum 1 and the second sieve drum 2 from rotating relative to each other during use.

[0021] As a technical optimization solution of the utility model, the left ends of the two limit rods 12 are fixedly connected to the limit plates 13 in contact with the left end of the first mounting circle 3, and the outer walls of the two limit rods 12 are penetrated by R-shaped pin holes 11 located on the right side of the second mounting circle 4.

[0022] In this embodiment, two R-shaped pin holes 11 are provided to facilitate inserting two R-shaped pins into the two R-shaped pin holes 11 respectively, and two limiting plates 13 are used to prevent the two limiting rods 12 from being separated from the two limiting holes 10 on the same side.

[0023] As a technical optimization solution of the present utility model, the arc length spacing between the two first limiting circles 5 and the two second limiting circles 6 on opposite sides is greater than the arc length of the two arc blocks 7 .

[0024] In the present embodiment: by making the arc length spacing between the opposite sides of the two first limiting rings 5 ​​and the two second limiting rings 6 greater than the arc length of the two arc blocks 7, the two arc blocks 7 can be conveniently placed between the two first limiting rings 5 ​​and the two second limiting rings 6 and fit with the right side of the first mounting ring 3.

[0025] As a technical optimization solution of the present invention, the first sieve drum 1 and the second sieve drum 2 are both mesh structures.

[0026] In this embodiment: the first sieve drum 1 and the second sieve drum 2 are both configured as mesh structures so that the first sieve drum 1 and the second sieve drum 2 can perform screening.

[0027] As a technical optimization solution of the present invention, the two first limiting rings 5 ​​and the two second limiting rings 6 are both made of alloy steel.

[0028] In this embodiment: the two first limiting rings 5 ​​and the two second limiting rings 6 are made of alloy steel so as to improve their hardness and prevent them from deformation.

[0029] Working principle: when the first sieve drum 1 and the second sieve drum 2 are to be fixed, firstly, the two arc blocks 7 are made to fit with the right side of the first mounting ring 3, and then the second sieve drum 2 is rotated, so that the two first limiting rings 5 ​​can enter the inside of the two first limiting grooves 8 respectively, and the two second limiting rings 6 can enter the inside of the two second limiting grooves 9 at the same time, and then due to their matching relationship, the positions of the first sieve drum 1 and the second sieve drum 2 can be preliminarily limited until the two limiting holes 10 on the same side are horizontal, and then the two limiting rods 12 are respectively inserted into them to prevent the first sieve drum 1 and the second sieve drum 2 from rotating relative to each other, thereby completing the fixation of the first sieve drum 1 and the second sieve drum 2, and the same structure can be set on the opposite side of the first sieve drum 1 and the second sieve drum 2, and the other sieve drums can be fixed by the same principle. When in use, loading and unloading are convenient and quick, so as to achieve the effect of increasing or decreasing the number of sieve drums according to actual production to adjust the length of the sieve drum.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen drum of a drum screen, comprising a first screen drum (1) and a second screen drum (2) located to the right of the first screen drum (1), characterized in that: The right end of the first sieve drum (1) is fixedly connected to a first mounting ring (3), the right end of the first mounting ring (3) is fixedly connected to two first limiting rings (5) symmetrically distributed in the upper and lower parts, the right ends of the two first limiting rings (5) are fixedly connected to second limiting rings (6) symmetrically distributed in the upper and lower parts, the left end of the second sieve drum (2) is fixedly connected to a second mounting ring (4), the left side of the second mounting ring (4) is fixedly connected to two arc blocks (7) symmetrically distributed in the upper and lower parts, the left ends of the two arc blocks (7) are both provided with first limiting grooves (8) matching the two first limiting rings (5), the right ends of the inner walls of the two first limiting grooves (8) are both provided with second limiting grooves (9) matching the two second mounting rings (4), and limiting holes (10) located between the two second limiting rings (6) are penetrated through the front and rear sides of the left ends of the first mounting ring (3) and the second mounting ring (4).

2. A screen drum of a drum screen according to claim 1, characterized in that: A matching limiting rod (12) is arranged between the insides of two limiting holes (10) located on the same side.

3. A screen drum of a drum screen according to claim 2, characterized in that: The left ends of the two limit rods (12) are fixedly connected to a limit plate (13) in contact with the left end of the first mounting ring (3), and the outer walls of the two limit rods (12) are penetrated by an R-shaped pin hole (11) located on the right side of the second mounting ring (4).

4. The screen drum of a drum screen according to claim 1, characterized in that: The arc length spacing between the two first limiting circles (5) and the two second limiting circles (6) on opposite sides is greater than the arc length of the two arc-shaped blocks (7).

5. The screen drum of a drum screen according to claim 1, characterized in that: The first sieve drum (1) and the second sieve drum (2) are both mesh structures.

6. The screen drum of a drum screen according to claim 1, characterized in that: The two first limiting rings (5) and the two second limiting rings (6) are all made of alloy steel.

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