Drum screen device for drum sand screening machine

Abstract

The utility model belongs to the technical field of drum screens, and particularly relates to a drum screen device for a drum sand screening machine, which comprises two fixing plates, four connecting frames are fixedly connected between the two fixing plates, rotating rods are connected to the inner sides of the two fixing plates, one ends of the two fixing plates are fixedly connected with an annular support frame, and the other ends of the two fixing plates are fixedly connected with the rotary rods. Four grooves are formed in the outer walls of the two fixing plates correspondingly, and four sieve plates are annularly distributed between the two fixing plates. The fixing bolts at the corresponding positions are screwed off, so that the mounting plate at the end of the damaged sieve plate can be detached from the outer wall of the connecting plate, the limiting plug pins on the inner side of the connecting plate can be separated from the limiting holes after the connecting plate is taken down, and then the mounting plate at the other end of the sieve plate is detached in the mode. And after the mounting plates at the two ends are both detached, the sieve plate at the damaged part can be independently detached, so that the sieve plate can be replaced more conveniently, meanwhile, the sieve plate at the damaged part can be independently replaced, and the budget cost can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of drum screens, and in particular relates to a drum screen device for a drum sand screening machine. Background Art

[0002] The drum sand screen is a special screening equipment developed for power plants, coking plants, building materials, metallurgy, chemical industry, mining and other occupations. The drum screen is composed of a drum, a frame, a funnel, an electric motor and other parts. After the material enters the drum, on the one hand, it is screened as the drum rotates, and on the other hand, the stone with large particle size flows forward along the slope of the drum, and the sand and gravel with smaller particles are screened out through the screen cylinder in the drum.

[0003] At present, after long-term use, the drum screen on the existing drum sand screening machine is easily damaged by wear and tear of the screen plate due to the friction between sand and gravel. However, the screen of the general drum screen is usually an integrated structure, so when the screen on the screen plate is damaged, it can only be completely replaced. Therefore, replacement is very troublesome, and complete replacement will also increase the budget cost. Utility Model Content

[0004] The utility model aims to provide a drum screen device for a drum sand screening machine, aiming to solve the problem in the prior art that the drum screen on the existing drum sand screening machine is easily damaged due to the friction between sand and gravel after long-term use, but the screen of the conventional drum screen is usually an integrated structure, so when the screen on the screening plate is damaged, it can only be completely replaced, which is very troublesome to replace, and complete replacement will also increase the budget cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drum screen device for a drum sand screening machine, comprising two fixed plates, four connecting frames are fixedly connected between the two fixed plates, rotating rods are connected to the inner sides of the two fixed plates, an annular support frame is fixedly connected to one end of the two fixed plates, four grooves are respectively opened on the outer walls of the two fixed plates, four sieve plates are annularly distributed between the two fixed plates, and the ends of the four sieve plates are fixedly connected to connecting plates;

[0006] A limiting hole is provided on the outer wall of the connecting plate, a mounting plate is provided on the outer wall of the connecting plate, a limiting pin is fixedly connected to the inner side of the mounting plate, a threaded hole is provided on one end of the mounting plate, and a plurality of fixing bolts are penetrated by the surface threads of the two fixing plates.

[0007] As a preferred embodiment of the drum screen device for a drum sand screening machine of the utility model, the four connecting frames are distributed in a ring shape.

[0008] As a preferred embodiment of the drum screen device for a drum sand screening machine of the utility model, the annular support frame is located on the inner side of the four connecting frames.

[0009] As a preferred embodiment of the drum screen device for a drum sand screening machine of the utility model, the connecting plate at the end of the screen plate can be mounted on the outer wall of the annular support frame.

[0010] As a preferred embodiment of the drum screen device for a drum sand screening machine of the utility model, the sizes of the limit hole and the limit pin are matched.

[0011] As a preferred embodiment of the utility model of a drum screen device for a drum sand screening machine, the fixing plate can form a threaded connection structure with the mounting plate through threaded holes and fixing bolts.

[0012] As a preferred embodiment of the drum screen device for a drum sand screening machine of the utility model, one end of the mounting plate is located inside the groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By unscrewing the fixing bolts at the corresponding positions, the mounting plate at the end of the damaged sieve plate can be removed from the outer wall of the connecting plate, and when the connecting plate is removed, the limit pin on its inner side will disengage from the limit hole, and then the mounting plate at the other end of the sieve plate can be removed in the above manner. When the mounting plates at both ends are removed, the sieve plate at the damaged part can be removed separately, so that the sieve plate can be replaced more conveniently. At the same time, replacing the sieve plate at the damaged part separately can reduce the budget cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the first explosion structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the second explosion structure of the utility model;

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

[0020] Figure 5 This is a schematic diagram of the structure of the mounting plate of the utility model.

[0021] In the figure: 1. fixing plate; 2. connecting frame; 3. annular support frame; 4. rotating rod; 5. groove; 6. sieve plate; 7. connecting plate; 8. limiting hole; 9. mounting plate; 10. limiting pin; 11. threaded hole; 12. fixing bolt. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a drum screen device for a drum sand screening machine, comprising two fixed plates 1, four connecting frames 2 are fixedly connected between the two fixed plates 1, a rotating rod 4 is connected to the inner side of the two fixed plates 1, an annular support frame 3 is fixedly connected to one end of the two fixed plates 1, four grooves 5 are respectively opened on the outer walls of the two fixed plates 1, four sieve plates 6 are annularly distributed between the two fixed plates 1, and the ends of the four sieve plates 6 are fixedly connected to connecting plates 7;

[0024] A limit hole 8 is formed on the outer wall of the connecting plate 7, and a mounting plate 9 is provided on the outer wall of the connecting plate 7. A limit pin 10 is fixedly connected to the inner side of the mounting plate 9. A threaded hole 11 is formed at one end of the mounting plate 9, and a plurality of fixing bolts 12 are penetrated through the surface threads of the two fixing plates 1.

[0025] Preferably: the four connecting frames 2 are distributed in a ring shape, the annular support frame 3 is located on the inner side of the four connecting frames 2, the connecting plate 7 at the end of the sieve plate 6 can be mounted on the outer wall of the annular support frame 3, the sizes of the limiting hole 8 and the limiting pin 10 are adapted to each other, the fixing plate 1 can form a threaded connection structure with the mounting plate 9 through the threaded hole 11 and the fixing bolt 12, and one end of the mounting plate 9 is located on the inner side of the groove 5.

[0026] When in use, the fixing bolts 12 at the corresponding positions are unscrewed, so that the mounting plate 9 at the end of the damaged sieve plate 6 can be removed from the outer wall of the connecting plate 7, and when the connecting plate 7 is removed, the limiting latch 10 on the inner side thereof will be disengaged from the limiting hole 8, and then the mounting plate 9 at the other end of the sieve plate 6 is disassembled in the above manner, and when the mounting plates 9 at both ends are disassembled, the sieve plate 6 at the damaged part can be disassembled separately, so that the sieve plate 6 can be replaced more conveniently, and the sieve plate 6 at the damaged part can be replaced separately to reduce the budget cost;

[0027] It should be noted that each mounting plate 9 has two fixing bolts 12 to fix it;

[0028] When installing the sieve plate 6, the connecting plates 7 at both ends of the sieve plate 6 are mounted on the outer wall of the annular support frame 3 and embedded between two adjacent connecting frames 2, and then the limiting pin 10 on the inner side of the mounting plate 9 is inserted into the limiting hole 8. At this time, one end of the mounting plate 9 will be embedded in the groove 5. Finally, the fixing plate 1 and the mounting plate 9 are threadedly connected through the fixing bolts 12 and the threaded holes 11, and the other end of the sieve plate 6 is fixed in the above manner to complete the installation and fixation of the sieve plate 6.

[0029] Working principle: When using the drum screen device for the drum sand screening machine, first, when one of the sieve plates 6 is damaged due to long-term use of the drum screen, the fixing bolts 12 at the corresponding position are unscrewed so that the mounting plate 9 at the end of the damaged sieve plate 6 can be removed from the outer wall of the connecting plate 7, and when the connecting plate 7 is removed, the limiting latch 10 on the inner side thereof will be disengaged from the limiting hole 8, and then the mounting plate 9 at the other end of the sieve plate 6 is disassembled in the above manner. When the mounting plates 9 at both ends are disassembled, the sieve plate 6 at the damaged part can be disassembled separately, so that the screening can be realized more conveniently. Replace the sieve plate 6 and replace the damaged part of the sieve plate 6 separately to reduce the budget cost. When the sieve plate 6 needs to be installed, the connecting plates 7 at both ends of the sieve plate 6 are mounted on the outer wall of the annular support frame 3 and embedded between the two adjacent connecting frames 2. Then, the limiting pin 10 on the inner side of the mounting plate 9 is inserted into the limiting hole 8. At this time, one end of the mounting plate 9 will be embedded in the groove 5. Finally, the fixing bolts 12 and the threaded holes 11 are used to make the fixing plate 1 and the mounting plate 9 threadedly connected. Then, the other end of the sieve plate 6 is fixed in the above manner to complete the installation and fixation of the sieve plate 6.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drum screen device for a drum sand screening machine, comprising two fixed plates (1), characterized in that: Four connecting frames (2) are fixedly connected between the two fixing plates (1), a rotating rod (4) is connected to the inner side of the two fixing plates (1), an annular support frame (3) is fixedly connected to one end of the two fixing plates (1), four grooves (5) are respectively formed on the outer walls of the two fixing plates (1), four sieve plates (6) are distributed in an annular shape between the two fixing plates (1), and the ends of the four sieve plates (6) are fixedly connected to a connecting plate (7); The outer wall of the connecting plate (7) is provided with a limit hole (8), the outer wall of the connecting plate (7) is provided with a mounting plate (9), the inner side of the mounting plate (9) is fixedly connected with a limit pin (10), one end of the mounting plate (9) is provided with a threaded hole (11), and a plurality of fixing bolts (12) are threadedly penetrated through the surfaces of the two fixing plates (1).

2. A drum screen device for a drum sand screening machine according to claim 1, characterized in that: The four connecting frames (2) are distributed in a ring shape.

3. The drum screen device for a drum sand screening machine according to claim 1, characterized in that: The annular support frame (3) is located on the inner side of the four connecting frames (2).

4. The drum screen device for a drum sand screening machine according to claim 1, characterized in that: The connecting plate (7) at the end of the sieve plate (6) can be mounted on the outer wall of the annular support frame (3).

5. The drum screen device for a drum sand screening machine according to claim 1, characterized in that: The sizes of the limiting hole (8) and the limiting latch (10) are matched.

6. The drum screen device for a drum sand screening machine according to claim 1, characterized in that: The fixing plate (1) can form a threaded connection structure with the mounting plate (9) via threaded holes (11) and fixing bolts (12).

7. The drum screen device for a drum sand screening machine according to claim 1, characterized in that: One end of the mounting plate (9) is located inside the groove (5).

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