Roller screen with adjustable screen holes

Abstract

The utility model discloses a roller screen with adjustable screen holes, which comprises a screen box, the screen box is obliquely arranged, a feeding chute is arranged at the upper end of the screen box, a base is fixed on the lower surface of the screen box, two groups of rollers are arranged in the screen box, one group of rollers is connected with the screen box through a floating piece, and the other group of rollers is connected with the screen box through a floating piece. One group of rolling shafts is connected with the screen box through a motor, the other group of rolling shafts is connected with the screen box through a fixed bearing seat, the two groups of rolling shafts are distributed at intervals, each group of rolling shafts is driven by a driving assembly, annular plates are uniformly arranged on the outer sides of the rolling shafts, and the annular plates on the two adjacent rolling shafts are distributed at intervals; the roller screen with the adjustable screen holes has the advantages that the structure is simple, operation is easy and convenient, the screen holes can be flexibly adjusted, the utilization rate of the roller screen is increased, the universality of parts is high, installation and maintenance are easy and convenient, and the working efficiency is greatly improved.

Description

Technical Field

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

[0002] In recent years, with the widespread application of screening equipment in coal, metallurgy, mining, electric power and other industries, roller screens are indispensable equipment in material screening systems as screening equipment. The traditional roller screens have limited their sieve hole size and the particle size of the screened material during screening selection. In order to cope with the more flexible and changeable particle size requirements of the downstream market, it is impossible to achieve "one machine for multiple uses" and can only rely on replacing the overall roller screen to achieve screening of different material particle sizes. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an adjustable mesh roller screen with a simple structure and easy operation. It has the characteristics of flexible adjustment of the mesh holes, high utilization rate of the roller screen, strong versatility of parts, and easy installation and maintenance, which greatly improves work efficiency and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable mesh roller screen, comprising a screen box, the screen box is arranged obliquely, a feed chute is arranged at the upper end of the screen box, and a base is fixed to the lower surface of the screen box, two groups of rollers are arranged inside the screen box, one group of rollers is connected to the screen box through a floating member, and the other group of rollers is connected to the screen box through a fixed bearing seat, the two groups of rollers are distributed at intervals, each group of rollers is driven by a driving assembly, annular plates are evenly arranged on the outside of the rollers, and the annular plates on two adjacent rollers are distributed at intervals.

[0005] Furthermore, the floating member includes a pillar fixed to the screen box, a floating plate is provided at the upper end of the pillar, a floating bearing seat is fixed to the upper surface of the floating plate, the floating bearing seat is connected to the end of the roller through a bearing, the roller can be moved up and down through the floating plate, so as to adjust the gap between two adjacent rollers, so as to adjust the size of the sieve hole, the roller can be moved forward and backward through the floating bearing seat, so as to adjust the front and rear distance between the two annular plates, so as to adjust the front and rear size of the sieve hole, which can prevent the material from clogging the sieve hole.

[0006] Furthermore, the driving assembly includes a motor base fixed to the ground, a motor is mounted on the upper surface of the motor base, the output shaft of the motor is connected to the input end of the reducer, the output end of the reducer is connected to one of a group of rollers, a double-tooth sprocket is fixed at one end of all the rollers in each group, and a chain transmission is provided between two adjacent double-tooth sprockets on the left and right. The rotation of the motor can drive one roller to rotate, and when one roller rotates, the other rollers can be driven to rotate through the double-tooth sprocket and chain transmission, so as to perform screening.

[0007] Furthermore, an opening is provided on the upper surface of the screen box, and one side of the opening is connected to an upwardly opening inspection door panel via a hinge, and the inspection door panel is sealed to the screen box.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the roller can be moved up and down by the floating plate to adjust the gap between two adjacent rollers, thereby adjusting the size of the sieve hole; the roller can be moved forward and backward by the floating bearing seat to adjust the front-to-back distance between the two annular plates, thereby adjusting the front-to-back size of the sieve hole, and preventing the sieve hole from being blocked by the material; a roller can be driven to rotate by the rotation of the motor; when one roller rotates, the other rollers can be driven to rotate by the double-tooth sprocket and chain transmission, thereby performing screening; the adjustable sieve hole roller screen has a simple structure, is easy to operate, has the characteristics of flexible adjustment of the sieve hole, high utilization rate of the roller screen, strong versatility of parts, and simple installation and maintenance, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model;

[0010] Figure 2 This is a side view of the structure of the utility model;

[0011] Figure 3 It is a partial enlarged structural schematic diagram of the utility model;

[0012] Figure 4 This is a schematic diagram of the structure of the floating member of the utility model;

[0013] Figure 5 This is a schematic diagram of the floating plate structure of the utility model;

[0014] Figure 6 This is a schematic diagram of the roller adjustment structure of the utility model.

[0015] In the figure: 1 annular plate, 2 screen box, 3 base, 4 drive assembly, 41 motor, 42 double-tooth sprocket, 43 chain, 5 feed chute, 6 inspection door plate, 7 roller, 8 fixed bearing seat, 9 floating part, 91 pillar, 92 floating plate, 93 floating bearing seat. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-6 The utility model provides a technical solution: an adjustable mesh roller screen, including a screen box 2, the screen box 2 is inclined, a feed chute 5 is arranged at the upper end of the screen box 2, and a base 3 is fixed to the lower surface of the screen box 2, two groups of rollers 7 are arranged inside the screen box 2, one group of rollers 7 is connected to the screen box 2 through a floating member 9, and the other group of rollers 7 is connected to the screen box 2 through a fixed bearing seat 8, the two groups of rollers 7 are distributed at intervals, each group of rollers 7 is driven by a driving assembly 4, annular plates 1 are evenly arranged on the outer side of the rollers 7, the annular plates 1 on two adjacent rollers 7 are distributed at intervals, and the floating member 9 It includes a support column 91 fixed to the screen box 2, and a floating plate 92 is arranged at the upper end of the support column 91. The floating plate 92 is a prior art. For example, the floating plate 92 includes an upper support plate, an adjusting bolt and a lower support plate. The upper support plate is provided with a sliding column, and the lower support plate is provided with a sliding hole corresponding to the sliding column. The upper support plate is connected with the adjusting bolt through a bearing, and the upper support plate is connected with the lower support plate through a threaded connection. A floating bearing seat 93 is fixed on the upper surface of the floating plate 92, and the floating bearing seat 93 is connected to the end of the roller 7 through a bearing. The roller 7 can be moved up and down through the floating plate 92. In this way, the gap between two adjacent rollers 7 is adjusted, and the size of the sieve hole is adjusted. The roller 7 can be moved forward and backward through the floating bearing seat 93 to adjust the front and rear distance of the two annular plates 1. In this way, the front and rear size of the sieve hole can be adjusted to prevent the material from clogging the sieve hole. The driving component 4 includes a motor seat fixed to the ground, and a motor 41 is installed on the upper surface of the motor seat. The output shaft of the motor 41 is connected to the input end of the reducer, and the output end of the reducer is connected to one of a group of rollers 7. A double-tooth sprocket 42 is fixed at one end of all rollers 7 in each group. The two adjacent double-tooth sprockets on the left and right 42 is driven by a chain 43, and the rotation of the motor 41 can drive a roller 7 to rotate. When one roller 7 rotates, the other rollers 7 can be driven to rotate through the double-tooth sprocket 42 and the chain 43, so as to perform screening. An opening is provided on the upper surface of the screen box 2, and one side of the opening is connected to an upwardly opened maintenance door panel 6 through a hinge. The maintenance door panel 6 is sealed and connected to the screen box 2. The adjustable screen hole roller screen has a simple structure and is easy to operate. It has the characteristics of flexible adjustment of the screen hole, high utilization rate of the roller screen, strong versatility of parts, and simple installation and maintenance, which greatly improves work efficiency.

[0018] When in use: the roller 7 can be moved up and down by the floating plate 92 to adjust the gap between two adjacent rollers 7 to adjust the size of the sieve hole; the roller 7 can be moved forward and backward by the floating bearing seat 93 to adjust the front and rear distance between the two annular plates 1 to adjust the front and rear size of the sieve hole, which can prevent the material from clogging the sieve hole; the rotation of the motor 41 can drive one roller 7 to rotate; when one roller 7 rotates, the other rollers 7 can be driven to rotate through the double-tooth sprocket 42 and the chain 43 to perform screening.

[0019] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A roller screen with adjustable screen aperture, comprising a screen box (2), characterized in that: The screen box (2) is arranged in an inclined manner, a feed chute (5) is arranged at the upper end of the screen box (2), and a base (3) is fixed to the lower surface of the screen box (2). Two groups of rollers (7) are arranged inside the screen box (2), one group of rollers (7) is connected to the screen box (2) through a floating member (9), and the other group of rollers (7) is connected to the screen box (2) through a fixed bearing seat (8), the two groups of rollers (7) are arranged at intervals, each group of rollers (7) is driven by a driving assembly (4), and annular plates (1) are evenly arranged on the outer sides of the rollers (7), and the annular plates (1) on two adjacent rollers (7) are arranged at intervals.

2. The adjustable mesh roller screen according to claim 1, characterized in that: The floating member (9) comprises a support (91) fixed to the screen box (2), a floating plate (92) being provided at the upper end of the support (91), a floating bearing seat (93) being fixed on the upper surface of the floating plate (92), and the floating bearing seat (93) being connected to the end of the roller (7) via a bearing.

3. The adjustable mesh roller screen according to claim 1, characterized in that: The driving assembly (4) comprises a motor seat fixed on the ground, a motor (41) being mounted on the upper surface of the motor seat, an output shaft of the motor (41) being connected to an input end of a reducer, an output end of the reducer being connected to one of a group of rollers (7), a double-tooth sprocket (42) being fixed to one end of all rollers (7) in each group, and transmission being provided between two adjacent double-tooth sprockets (42) on the left and right via a chain (43).

4. The adjustable mesh roller screen according to claim 1, characterized in that: The upper surface of the screen box (2) is provided with an opening, one side of the opening is connected to an upwardly opening inspection door panel (6) via a hinge, and the inspection door panel (6) is sealedly connected to the screen box (2).

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