A mine roller screen

Abstract

The utility model relates to the field of mineral aggregate screening treatment equipment, disclose a mine roller screen, including the fixed frame, the top fixed mounting of fixed frame has the motor, the output fixed connection of motor has the first link rod, the outer wall rear side fixed mounting of first link rod has the gear, the outer wall of gear is connected with ring band gear and engages, the inner wall fixed connection of ring band gear has the outer drum screen, the inner wall fixed connection of outer drum screen has a plurality of connecting rods, the inner wall fixed connection of connecting rod has the inner drum screen, the outer wall fixed connection of outer drum screen has the friction ring, the outer wall fixed mounting of first link rod has the rotating wheel, the outer wall fixed mounting of rotating wheel has the friction wheel. In the utility model, through setting up two inner and outer drum screens, and the screen hole size of outer drum screen only has half of the inner drum screen, and the discharge port of each drum screen is separately arranged, realize the multiple screening and collection of mineral aggregate.

Description

Technical Field

[0001] This utility model relates to the field of mineral screening and processing equipment, and in particular to a mining drum screen. Background Technology

[0002] There are not many rich ores in nature that can be directly used for smelting. In particular, with the development of industrial production, the reserves of rich ores are gradually decreasing. Therefore, it is necessary to mine more and more poor ores, and thus the amount of ore that needs to be beneficiation is increasing. Mining drum screen is a screening equipment specially developed for beneficiation in the mining industry.

[0003] Traditional mining drum screens are often single-drum screening devices connected by a central shaft. They can only perform simple screening to distinguish minerals. For minerals containing multiple blocks, multiple screenings are required. Moreover, minerals often collide with the central shaft during screening inside the drum, causing damage and requiring frequent replacement and maintenance. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a mining drum screen, which aims to improve the problem of insufficient single-drum screening accuracy and easy damage of existing mining drum screens.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mining drum screen, comprising a fixed frame, a motor fixedly mounted on the top of the fixed frame, a first connecting rod fixedly connected to the output end of the motor, a gear fixedly mounted on the rear side of the outer wall of the first connecting rod, a ring gear meshing with the outer wall of the gear, an outer drum screen fixedly connected to the inner wall of the ring gear, a plurality of connecting rods fixedly connected to the inner wall of the outer drum screen, an inner drum screen fixedly connected to the inner wall of the connecting rods, a friction ring fixedly connected to the outer wall of the outer drum screen, a rotating wheel fixedly mounted on the outer wall of the first connecting rod, a friction wheel fixedly mounted on the outer wall of the rotating wheel, the outer walls of the friction ring and the friction wheel being in contact, and a striking assembly fixedly mounted on the front side of the first connecting rod.

[0006] Preferably, the tapping assembly includes a first pulley, the inner wall of the first pulley is fixedly installed on the outer wall of the first connecting rod, a plurality of load-bearing columns are mounted on the left side of the first connecting rod, a second connecting rod is rotatably connected to the middle of two load-bearing columns, a second pulley is fixedly connected to the front side of the outer wall of the second connecting rod, a sliding belt is installed on the outer wall of the first pulley and the second pulley, and a plurality of tapping belts are fixedly installed on the outer wall of the second connecting rod, the tapping belts being made of soft rubber.

[0007] Preferably, the outer drum screen has a feed inlet on its rear side, and the bottom outlet of the feed inlet is located directly above the opening of the inner drum screen.

[0008] Preferably, baffles are installed on both sides of the outer drum screen, and multiple load-bearing rods are fixedly installed on the opposite side of the two baffles.

[0009] Preferably, a first slide rail is fixedly connected to the top end of one of the load-bearing rods, a first collection frame is fixedly connected to the top end of one of the load-bearing rods, and a second slide rail is fixedly connected to the top end of one of the load-bearing rods.

[0010] Preferably, the front side of the first slide is positioned directly above the first collection frame, the bottom front side of the second slide is provided with a second collection frame, and the front side of the second slide is positioned directly above the second collection frame.

[0011] Preferably, the outer drum screen is located at the top of one of the supporting rods, and a bottom collection frame is located directly below the outer drum screen.

[0012] Preferably, the load-bearing column is located on the left side of one of the baffles.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by setting two drum screens, an inner and an outer one, with the screen hole size of the outer drum screen being only half that of the inner drum screen, and the discharge ports of each drum screen being set separately, multiple screening and collection of mineral materials are realized.

[0015] 2. In this utility model, the motor drives the first connecting rod, which in turn drives the gear and the rotating wheel. These gears, through their meshing structure and friction structure, drive the ring gear and friction wheel to rotate, thereby driving the outer drum screen to rotate. The connecting rod then drives the inner drum screen to rotate, thus realizing shaftless operation of the drum screen and effectively preventing the impact damage of the ore material to the drum screen shaft.

[0016] 3. In this utility model, the gears originally fixed on the two connecting rods are driven by the sliding belt to achieve synchronous rotation of the two rotating rods. This drives multiple beating belts fixed on the second connecting rod to rotate together with the drum screen. When the machine is running, the beating belts made of soft rubber will beat the outer drum screen and knock off the ore stuck in the screen holes, effectively preventing the ore from clogging.

[0017] 4. In this utility model, by setting baffles on both sides of the drum screen, the flying of mud and dust and the splashing of small hard objects are effectively prevented. Attached Figure Description

[0018] Figure 1 This is a top view of a mining drum screen proposed in this utility model;

[0019] Figure 2 This is a left view of a mining drum screen proposed in this utility model;

[0020] Figure 3 This is a front view of a mining drum screen proposed in this utility model.

[0021] Legend:

[0022] 1. Feed inlet; 2. Motor; 3. First connecting rod; 4. Gear; 5. Rotating wheel; 6. Friction wheel; 7. Friction ring; 8. Ring belt gear; 9. Outer drum screen; 10. Connecting rod; 11. Inner drum screen; 12. First slide rail; 13. First collection frame; 14. First pulley; 15. Sliding belt; 16. Second pulley; 17. Second connecting rod; 18. Beating belt; 19. Baffle; 20. Bottom collection frame; 21. Supporting rod; 22. Supporting column; 23. Second slide rail; 24. Second collection frame; 25. Fixing frame. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figure 1-3 This utility model provides an embodiment of a mining drum screen, including a fixed frame 25. A motor 2 is fixedly installed at the top of the fixed frame 25. A first connecting rod 3 is fixedly connected to the output end of the motor 2. A gear 4 is fixedly installed on the rear side of the outer wall of the first connecting rod 3. A ring gear 8 is meshed with the outer wall of the gear 4. An outer drum screen 9 is fixedly connected to the inner wall of the ring gear 8. A plurality of connecting rods 10 are fixedly connected to the inner wall of the outer drum screen 9. An inner drum screen 11 is fixedly connected to the inner wall of the connecting rods 10. A friction ring 7 is fixedly connected to the outer wall of the outer drum screen 9. A rotating wheel 5 is fixedly installed on the outer wall of the first connecting rod 3. A friction wheel 6 is fixedly installed, and a friction ring 7 is attached to the outer wall of the friction wheel 6. A striking assembly is fixedly installed on the front side of the first linkage rod 3. The striking assembly includes a first pulley 14. The inner wall of the first pulley 14 is fixedly installed on the outer wall of the first linkage rod 3. Multiple load-bearing columns 22 are mounted on the left side of the first linkage rod 3. A second linkage rod 17 is rotatably connected to the middle of two load-bearing columns 22. A second pulley 16 is fixedly connected to the front side of the outer wall of the second linkage rod 17. Sliding belts 15 are installed on the outer walls of the first pulley 14 and the second pulley 16. Multiple striking belts 18 are fixedly installed on the outer wall of the second linkage rod 17. The striking belts 18 are made of soft rubber.

[0025] Specifically, the output of motor 2 directly drives the first connecting rod 3 to rotate. The gear 4 and rotating wheel 5, fixedly connected to the first connecting rod 3, rotate synchronously with it. Since the subsequent structures of gear 4 and rotating wheel 5 drive the outer drum screen 9 to rotate, the rotational synchronicity of the two drive structures is ensured. A ring gear 8 is fixedly connected to the rear side of the outer wall of the outer drum screen 9. Gear 4 and ring gear 8 are meshed together, facilitating the disassembly and replacement of subsequent parts. The outer drum screen 9 and inner drum screen 11 are fixedly connected by multiple connecting rods 10, ensuring stability and reliability. This achieves both the layering of the drum screens and ensures the synchronous rotation of the two drum screens. The two drum screens have different screen hole sizes. The screen hole size of the inner drum screen 11 is twice that of the outer drum screen 9, thus achieving triple screening of the size of the mineral blocks. Furthermore, by installing the first pulley 14 on the outer side of the first connecting rod 3, power is transmitted to the second pulley 16 through the sliding belt 15, which in turn drives the second connecting rod 17 to rotate. This achieves the synchronous rotation of multiple rotating devices driven by one motor 2, which is convenient and fast. When the multiple beating belts 18 installed on the second connecting rod 17 are driven to rotate, they will repeatedly beat the outer drum screen 9 due to the soft rubber material. Through beating and vibration, the mineral material stuck in the screen hole of the outer drum screen 9 will be knocked off, preventing the drum screen from being blocked by mineral material.

[0026] Reference Figure 2 and Figure 3 The outer drum screen 9 has a feed inlet 1 on its rear side, and the bottom outlet of the feed inlet 1 is located directly above the opening of the inner drum screen 11.

[0027] Specifically, due to the inclined design of the outer drum screen 9, the feed inlet 1 is set at the rear end of the outer drum screen 9 to allow the ore to slide down naturally. The bottom outlet of the feed inlet 1 is set inside the inner drum screen 11, ensuring that the ore will first contact the inner drum screen 11 with large screen holes, and then multiple layers of screening can be carried out.

[0028] Reference Figure 1 and Figure 2 Both sides of the outer drum screen 9 are equipped with baffles 19. Multiple load-bearing rods 21 are fixedly installed on the opposite side of the two baffles 19. The top of one load-bearing rod 21 is fixedly connected to a first slide rail 12, the top of another load-bearing rod 21 is fixedly connected to a first collection frame 13, and the top of yet another load-bearing rod 21 is fixedly connected to a second slide rail 23. The front side of the first slide rail 12 is positioned directly above the first collection frame 13, and the bottom front side of the second slide rail 23 is positioned to form a second collection frame 24. The front side of the second slide rail 23 is positioned directly above the second collection frame 24. The outer drum screen 9 is positioned at the top of one of the load-bearing rods. This design ensures the stability of the screen during operation. The bottom collection frame 20 is positioned directly below the outer drum screen 9, and the load-bearing column 22 is positioned on the left side of one of the baffles 19.

[0029] Specifically, baffles 19 are installed on both sides of the outer drum screen 9 to effectively block dust and dirt raised during ore screening, as well as to prevent the splashing of small hard objects, thus protecting the workers' bodies. Multiple load-bearing rods 21 fixedly installed in the middle of the outer drum screen 9 ensure the stability of the outer drum screen 9. The first slide rail 12 and the second slide rail 23 fixedly installed on the outer drum screen 9 also realize the separation and transmission of the ore screened by the outer drum screen 9 and the inner drum screen 11. The first collection frame 13, the bottom collection frame 20 and the second collection frame 24 can also collect three different sizes of objects independently without affecting each other, which also facilitates the subsequent processing of ore.

[0030] Working Principle: When using this mining drum screen, the motor 2 needs to be started first, and then the ore is loaded into the feed inlet 1. The output end of the motor 2 will drive the first connecting rod 3 to rotate. Then, the first connecting rod 3 will drive the gear 4 and friction wheel 6 on it to rotate together. Due to the meshing relationship, the gear 4 will synchronously drive the rotating wheel 5 to rotate, and the friction wheel 6 will drive the friction ring 7 to rotate due to friction. The rotating wheel 5 and the friction ring 7 are both fixed on the outer wall of the outer drum screen 9, so they will drive the outer drum screen 9 to rotate together. The outer drum screen 9 will drive the inner drum screen 11 to rotate synchronously through the connecting rod 10. The entire drum screen starts to work. The ore will first contact the inner wall of the inner drum screen 11. Since both the connecting rod 10 and the inner drum screen 11 are equipped with screen holes, and the size of the screen hole of the connecting rod 10 is only half that of the inner drum screen 11, different sized pieces in the ore will be separated. Driven by the rotating screen cylinder, the materials will fall from the screen holes. Larger pieces will slide down the inner drum screen 11 from the first slide rail 12 to the first collection frame 13. Medium-sized pieces will fall from the screen holes of the inner drum screen 11 to the connecting rod 10, and then slide down the second slide rail 23 to the second collection frame 24. Small pieces and minerals such as soil will fall directly from the screen holes of the connecting rod 10 to the bottom collection frame 20. Thus, the minerals are screened according to their size. The first pulley 14 installed on the right end of the first connecting rod 3 will be driven to rotate by the first connecting rod 3. Through the sliding belt 15, it will drive the second pulley 16, and continue to drive the second connecting rod 17 to rotate. Multiple beating belts 18 installed on the second connecting rod 17 will rotate and beat the outer wall of the outer drum screen 9, knocking the minerals stuck in the screen holes of the outer drum screen 9 off and preventing the screen holes from clogging.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mining trommel screen comprising a stationary frame (25) characterised in that: The top end of the fixing frame (25) is fixedly installed with a motor (2), the output end of the motor (2) is fixedly connected with a first linkage rod (3), the rear side of the outer wall of the first linkage rod (3) is fixedly installed with a gear (4), the outer wall of the gear (4) is engagedly connected with a ring gear (8), the inner wall of the ring gear (8) is fixedly connected with an outer cylinder screen (9), the inner wall of the outer cylinder screen (9) is fixedly connected with a plurality of connecting rods (10), the inner wall of the connecting rod (10) is fixedly connected with an inner cylinder screen (11), the outer wall of the outer cylinder screen (9) is fixedly connected with a friction ring (7), the outer wall of the first linkage rod (3) is fixedly installed with a rotating wheel (5), the outer wall of the rotating wheel (5) is fixedly installed with a friction wheel (6), the outer walls of the friction ring (7) and the friction wheel (6) are in abutment, and the front side of the first linkage rod (3) is fixedly installed with a beating assembly.

2. A mining drum screen according to claim 1, characterised in that: The beating assembly comprises a first pulley (14), and the inner wall of the first pulley (14) is fixedly installed on the outer wall of the first linkage rod (3); a plurality of bearing columns (22) are arranged on the left side of the first linkage rod (3); the middle portions of two bearing columns (22) are rotatably connected with a second linkage rod (17); the front side of the outer wall of the second linkage rod (17) is fixedly connected with a second pulley (16); the outer walls of the first pulley (14) and the second pulley (16) are provided with a sliding belt (15); the outer wall of the second linkage rod (17) is fixedly installed with a plurality of beating belts (18); and the beating belts (18) are made of soft rubber.

3. A mining drum screen according to claim 1, characterised in that: The rear side of the outer cylinder screen (9) is provided with a feeding port (1), and the bottom outlet of the feeding port (1) is arranged directly above the opening of the inner cylinder screen (11).

4. A mining drum screen according to claim 1, characterised in that: The two sides of the outer cylinder screen (9) are both provided with baffles (19), and the opposite sides of the two baffles (19) are fixedly installed with a plurality of bearing rods (21).

5. A mining drum screen according to claim 4, characterised in that: The top end of one of the bearing rods (21) is fixedly connected with a first sliding channel (12), the top end of one of the bearing rods (21) is fixedly connected with a first collecting frame (13), and the top end of one of the bearing rods (21) is fixedly connected with a second sliding channel (23).

6. A mining drum screen according to claim 5, characterised in that: The front side of the first sliding channel (12) is arranged directly above the first collecting frame (13), the front side of the second sliding channel (23) is provided with a second collecting frame (24) at the bottom, and the front side of the second sliding channel (23) is arranged directly above the second collecting frame (24).

7. A mining drum screen according to claim 1, characterised in that: The outer cylinder screen (9) is arranged at the top end of one of the bearing rods (21), and a bottom collecting frame (20) is arranged directly below the outer cylinder screen (9).

8. A mining drum screen according to claim 2, characterised in that: The bearing column (22) is arranged at the left portion of one of the baffles (19).

Images