Self-cleaning combined screen piece cross screen

Abstract

The utility model relates to the technical field of screening devices, in particular to a self-cleaning combined screen piece cross screen which comprises a plurality of screen shafts arranged in a straight line and a telescopic support connected among the screen shafts, the telescopic support is provided with a plurality of support units, each support unit comprises a pair of connecting rods which are arranged in a cross mode and hinged to each other, and the connecting rods are connected with the telescopic support. The hinged position of each pair of connecting rods is rotationally connected with one screen shaft, and the two pairs of connecting rods of every two adjacent support units are hinged to each other. Through the arrangement of the telescopic support and the support units hinged to each other, synchronous and accurate adjustment of the distance between the screen shafts is achieved, and the problems that traditional screening equipment is difficult to adjust and low in accuracy are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a self-cleaning combined screen plate cross screen. Background Art

[0002] The cross screen is a highly efficient screening equipment, which is developed on the basis of the traditional roller screen. The cross screen consists of multiple groups of screen shafts rotating in the same direction to form a screen surface. Each screen shaft is equipped with equidistant screen plates, and the screen plates on adjacent screen shafts are arranged crosswise to form dynamic screen holes. This design can effectively prevent material blockage and improve screening efficiency.

[0003] The distance between adjacent screen axes of a traditional cross screen can generally be adjusted to change the size of the screen holes. However, the adjustment of the distance between the screen axes of an existing cross screen usually needs to be done manually one by one, which is not only cumbersome to operate, but also difficult to ensure the consistency of the spacing between adjacent screen axes, which will lead to uneven screen hole sizes and affect the screening effect and product quality. For this reason, we provide a self-cleaning combined screen cross screen. Utility Model Content

[0004] The purpose of the utility model is to provide a self-cleaning combined screen plate cross screen, which is used to solve the problems raised in the above background technology.

[0005] The utility model is realized by the following technical solutions:

[0006] A self-cleaning combined screen cross screen comprises a plurality of screen shafts arranged in a line and a telescopic bracket connected between the plurality of screen shafts, wherein the telescopic bracket comprises a plurality of bracket units, each bracket unit comprises a pair of connecting rods which are cross-arranged and hinged to each other, the hinges of each pair of the connecting rods are rotatably connected to one of the screen shafts, and the two pairs of connecting rods of adjacent bracket units are hinged to each other.

[0007] Optionally, the combined screen cross screen also includes an adjuster, which includes two nuts and an adjusting rod, both ends of the adjusting rod have external threads with opposite thread directions, both ends of the adjusting rod are threadedly connected to the two nuts respectively, and the two nuts are rotatably connected to the two connecting rods in the bracket unit through a rotating shaft.

[0008] Optionally, the combined screen cross screen also includes a gear set, which includes a first gear coaxially fixed with the screen shaft and a second gear meshing with two first gears on adjacent screen shafts, and the second gear is rotatably connected to the hinge position of the connecting rod of the adjacent bracket unit.

[0009] Optionally, two telescopic brackets are provided, and the two telescopic brackets are respectively provided at two ends of the screen shaft.

[0010] Optionally, the surface of the sieve shaft is protrudingly provided with a plurality of circular sieve plates equidistantly distributed along its axial direction, the sieve plates of adjacent sieve shafts are arranged in a staggered manner, and the end of the sieve shaft has a connecting shaft rotatably connected to the hinge of each pair of connecting rods.

[0011] Optionally, the combined screen plate cross screen also includes a U-shaped machine platform, a plurality of the screen shafts are arranged in the machine platform, sliding holes are opened on the machine platform along the length direction, and the connecting shafts of the screen shafts are slidably connected in the sliding holes.

[0012] Compared with the prior art, the utility model provides a self-cleaning combined screen cross screen, which has the following beneficial effects:

[0013] 1. The utility model realizes the synchronous and precise adjustment of the screen axis spacing by setting a telescopic bracket and mutually hinged bracket units, thus solving the problems of difficult adjustment and low precision of traditional screening equipment;

[0014] 2. The utility model realizes precise control and locking of the length of the telescopic bracket by setting an adjuster with an adjusting rod and a nut with opposite thread directions, further ensuring accurate adjustment of the distance between the screen axes, and improving the screening accuracy and equipment reliability;

[0015] 3. The utility model realizes the synchronous rotation of multiple screen shafts by setting a gear set, reduces the number of motors used, reduces system costs, and maintains stable operation of the transmission system, thereby improving screening efficiency and equipment reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model without a machine;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0018] Figure 3 For this utility model Figure 1 A schematic diagram of a top view structure;

[0019] Figure 4 This is a schematic diagram of the machine structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the utility model including the machine;

[0021] Figure 6 For this utility model Figure 1 Schematic diagram of the main structure.

[0022] In the figure: 1, screen shaft; 2, telescopic bracket; 20, bracket unit; 200, connecting rod; 3, nut; 4, adjusting rod; 5, gear set; 50, first gear; 51, second gear; 6, rotating shaft; 7, screen plate; 8, connecting shaft; 9, machine table; 10, sliding hole. DETAILED DESCRIPTION

[0023] 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.

[0024] Example: See Figures 1 to 6 According to an embodiment of the utility model, a technical solution is provided: a self-cleaning combined screen cross screen, comprising a plurality of screen shafts 1 arranged in a line and a telescopic bracket 2 connected between the plurality of screen shafts 1, the telescopic bracket 2 having a plurality of bracket units 20, each bracket unit 20 comprising a pair of connecting rods 200 arranged crosswise and hinged to each other, the hinge of each pair of connecting rods 200 is rotatably connected to a screen shaft 1, and the two pairs of connecting rods 200 of adjacent bracket units 20 are hinged to each other. When using the combined screen cross screen, the operator can achieve synchronous adjustment of the distance between all screen shafts 1 by controlling the telescopic action of the telescopic bracket 2, which not only improves the adjustment efficiency, but also ensures the consistency of the spacing between adjacent screen shafts 1, greatly improving the accuracy and reliability of the cross screen.

[0025] In this exemplary embodiment, the combined screen plate cross screen further includes a regulator, which includes two nuts 3 and an adjusting rod 4, both ends of the adjusting rod 4 have external threads with opposite thread directions, both ends of the adjusting rod 4 are respectively threadedly connected with the two nuts 3, and the two nuts 3 are respectively rotatably connected with the two connecting rods 200 in the bracket unit 20 through the rotating shaft 6. With the regulator of the above structure, the operator only needs to rotate the adjusting rod 4 to drive the two nuts 3 to move closer to or away from each other, thereby accurately controlling the telescopic length of the telescopic bracket 2, and locking to maintain the accurate setting of the distance between the screen shafts 1.

[0026] In this exemplary embodiment, the combined screen plate cross screen also includes a gear set 5, which includes a first gear 50 coaxially fixed to the screen shaft 1 and a second gear 51 meshed with two first gears 50 on the adjacent screen shaft 1, and the second gear 51 is rotatably connected to the hinge position of the connecting rod 200 of the adjacent bracket unit 20. A plurality of screen shafts 1 are connected by a first gear 50 and a second gear 51. Only one of the screen shafts 1 or the second gear 51 needs to be connected to the motor output shaft to achieve synchronous rotation of all screen shafts 1. In this way, not only the number of motors used is reduced, but also the system cost is effectively reduced. At the same time, when the telescopic bracket 2 adjusts the spacing of the screen shaft 1, the second gear 51 can adapt to the telescopic changes of the telescopic bracket 2 and maintain meshing with the adjacent first gear 50, thereby maintaining the stable operation of the transmission system.

[0027] In this exemplary embodiment, two telescopic brackets 2 are provided, and the two telescopic brackets 2 are respectively provided at both ends of the screen shaft 1. The design of the double telescopic brackets 2 maintains extremely high stability and balance when adjusting the spacing of the screen shafts 1, and ensures the linearity and position accuracy of the screen shaft 1 during operation by providing equal support force on both sides of each screen shaft 1, avoiding the deviation or distortion of the screen shaft 1 caused by uneven force.

[0028] In this exemplary embodiment, the surface of the screen shaft 1 is protrudingly provided with a plurality of circular screen pieces 7 distributed equidistantly along its axial direction, and the screen pieces 7 of adjacent screen shafts 1 are arranged in a staggered manner, and the end of the screen shaft 1 has a connecting shaft 8 rotatably connected to the hinge of each pair of connecting rods 200. The surface of each screen shaft 1 is designed with a plurality of circular screen pieces 7 distributed equidistantly along the axial direction, and these screen pieces 7 are arranged in a staggered form on adjacent screen shafts 1 to form a series of dynamic screen holes for effective screening of materials. Connecting shafts 8 are provided at both ends of the screen shaft 1, and the connecting shafts 8 are connected to the corresponding pair of connecting rods 200 by hinged means. This structural design utilizes the connecting shaft 8 of the screen shaft 1 itself as a hinge point, without the need for an additional hinge device, thereby simplifying the assembly and disassembly process of the entire screening mechanism, and improving the overall rigidity and stability of the combined screen cross screen.

[0029] In this exemplary embodiment, the combined screen cross screen also includes a U-shaped machine table 9, a plurality of screen shafts 1 are arranged in the machine table 9, a slide hole 10 is opened on the machine table 9 along the length direction, and the connecting shaft 8 of the screen shaft 1 is slidably connected in the slide hole 10. When adjusting the spacing of the screen shafts 1, the screen shaft 1 can slide in the slide hole 10, and the slide hole 10 not only provides stable support for the screen shaft 1, but also ensures the flexible adjustment of the spacing of the screen shaft 1. In addition, a channel for material transportation is formed between the machine table 9 and the screen shaft 1, and this channel ensures that the material can move smoothly in a predetermined direction during the screening process.

[0030] Working principle: When using the self-cleaning combined screen cross screen, the operator precisely controls the telescopic action of the telescopic bracket 2 by rotating the adjusting lever 4 of the regulator, thereby synchronously adjusting the spacing between all the screen shafts 1. After the spacing adjustment is completed, the operator will select a screen shaft 1 or the second gear 51 to connect it to the output shaft of the motor, and use the transmission efficiency of the gear set 5 to achieve synchronous and unidirectional rotation of all the screen shafts 1. Finally, the material is put into the machine from one end of the machine 9, transported along the machine 9 by the rotating screen 7, and screened through the staggered dynamic screen holes. Qualified particles are separated through the screen holes, while larger particles are sent to the other end of the machine 9 for discharge.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning combined screen cross screen, comprising a plurality of screen shafts (1) arranged in a line and a telescopic bracket (2) connected between the plurality of screen shafts (1), characterized in that: The telescopic bracket (2) has a plurality of bracket units (20), each bracket unit (20) comprising a pair of connecting rods (200) arranged crosswise and hinged to each other, the hinge of each pair of connecting rods (200) being rotatably connected to one of the screen shafts (1), and the two pairs of connecting rods (200) of adjacent bracket units (20) being hinged to each other; the combined screen plate (7) cross screen also comprises an adjuster, the adjuster comprising two nuts (3) and an adjusting rod (4), the two ends of the adjusting rod (4) having external threads with opposite thread directions, the two ends of the adjusting rod (4) being respectively threadedly connected to the two nuts (3), and the two nuts (3) being respectively rotatably connected to the two connecting rods (200) in the bracket unit (20) via a rotating shaft (6).

2. A self-cleaning combined screen cross screen according to claim 1, characterized in that: The combined screen plate (7) cross screen also includes a gear set (5), the gear set (5) including a first gear (50) coaxially fixed to the screen shaft (1) and a second gear (51) meshing with two of the first gears (50) on adjacent screen shafts (1), the second gear (51) being rotatably connected to the hinged position of the connecting rod (200) of the adjacent bracket unit (20).

3. A self-cleaning combined screen cross screen according to claim 1, characterized in that: Two telescopic brackets (2) are provided, and the two telescopic brackets (2) are respectively provided at two ends of the screen shaft (1).

4. A self-cleaning combined screen cross screen according to any one of claims 1 to 3, characterized in that: The surface of the sieve shaft (1) is provided with a plurality of circular sieve plates (7) equidistantly distributed along its axial direction, and the sieve plates (7) of adjacent sieve shafts (1) are arranged in a staggered manner. The end of the sieve shaft (1) has a connecting shaft (8) rotatably connected to the hinge of each pair of connecting rods (200).

5. A self-cleaning combined screen cross screen according to claim 4, characterized in that: The combined screen plate (7) cross screen also includes a U-shaped machine platform (9), a plurality of the screen shafts (1) are arranged in the machine platform (9), a sliding hole (10) is opened on the machine platform (9) along the length direction, and the connecting shaft (8) of the screen shaft (1) is slidably connected in the sliding hole (10).

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