Rotary screen for ore

Abstract

According to the technical scheme, the rotary screen is characterized in that a supporting base is provided with the rotary screen, the rotary screen is driven by a driving motor and an auxiliary wheel which are arranged at one end of the supporting base, and the rotary screen is provided with a first screening area, a second screening area and a third screening area; and a first impact rod, a second impact rod and a third impact rod which are used for shaking ores are arranged at the tops of the first screening area, the second screening area and the third screening area correspondingly and are driven by a main rotating shaft, and the main rotating shaft is connected with a driving motor to be driven to rotate. According to the utility model, the impact rod is arranged, and the main rotating shaft is used as a driving source of the impact rod to drive the impact rod to move by utilizing the linkage type power connection support column, so that the impact rod can perform impact action on the outer wall of the rotary screen along with the rotary motion of the rotary screen and generate a vibration effect; and ores adhered or blocked in the screen holes are broken through, so that the screening efficiency of the drum screen is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of rotary drum screen technology, and specifically relates to a rotary drum screen for ore. Background Technology

[0002] A rotary drum screen is a commonly used device for ore sorting and processing, especially suitable for handling ores with small particle sizes. It uses a rotating cylinder to separate ore particles based on their size and shape. When ore enters the drum through the feed inlet, it tumbles continuously inside as the drum rotates. Because the drum has screen openings of different sizes, ore particles smaller than the openings pass through and fall, while larger particles remain inside the drum and continue to tumble. As the drum rotates, ore particles of different sizes are gradually separated and eventually discharged from different outlets.

[0003] However, during use, stone clogging is inevitable, especially when processing sticky or wet ores, where ore particles tend to adhere to the screen holes, thus affecting screening efficiency.

[0004] Therefore, this utility model provides a rotary screen for ore. Utility Model Content

[0005] The purpose of this invention is to provide a rotary drum screen for ore. By incorporating an impact rod, and utilizing a linkage-type power connection support to drive the main rotating shaft as the driving source for the impact rod, the impact rod can impact the outer wall of the rotary drum screen as it rotates, generating a vibration effect. This clears away ore adhering to or clogging the screen holes, ensuring the screening efficiency of the rotary drum screen and solving the problems mentioned in the background art. The specific technical solution is as follows:

[0006] A rotary screen for ore includes a support base on which the rotary screen is mounted. The rotary screen is driven by a drive motor and auxiliary wheels located at one end of the support base. The rotary screen has a first screening section, a second screening section, and a third screening section. A first impact rod, a second impact rod, and a third impact rod for vibrating the ore are respectively provided on the top of the first screening section, the second screening section, and the third screening section. The first impact rod, the second impact rod, and the third impact rod are all driven by a main rotating shaft, which is connected to the drive motor for rotation.

[0007] Preferably, the drum screen is provided with four fixed supports, including a first fixed support, a second fixed support, a third fixed support and a fourth fixed support. One end of each of the four fixed supports is installed on a support base. The first screening section is the area between the first fixed support and the second fixed support, the second screening section is the area between the second fixed support and the third fixed support, and the third screening section is the area between the third fixed support and the fourth fixed support.

[0008] Preferably, the main rotating shaft is respectively installed through and rotatably mounted on the top of the first fixed bracket, the second fixed bracket, the third fixed bracket and the fourth fixed bracket.

[0009] Preferably, one end of the support base is provided with a power connection pillar, and a connecting short shaft is rotatably provided inside the power connection pillar. One end of the connecting short shaft is rotatably connected to the auxiliary wheel, and a connecting long shaft is rotatably connected to the top of the connecting short shaft. One end of the connecting long shaft is rotatably connected to the main rotating shaft.

[0010] Preferably, a set of first bidirectional bevel gears is provided on the connecting short shaft, a second unidirectional bevel gear is provided at one end of the connecting long shaft, a set of third bidirectional bevel gears is provided at the other end of the connecting long shaft, and a fourth unidirectional bevel gear is provided at one end of the main rotating shaft. The second unidirectional bevel gear meshes with the first bidirectional bevel gear, and the third bidirectional bevel gear meshes with the fourth unidirectional bevel gear.

[0011] Preferably, multiple cams are respectively provided on the main rotating shafts of the first screening section, the second screening section, and the third screening section. Multiple impact rods are elastically provided below each cam, corresponding to multiple first impact rods, second impact rods, and third impact rods respectively. An impact block is provided at the lower end of each of the multiple first impact rods, second impact rods, and third impact rods. The multiple first impact rods, second impact rods, and third impact rods are elastically mounted on the suspension rod.

[0012] Preferably, the plurality of cams are arranged in the same direction on the main rotating shaft, or in opposite directions on the main rotating shaft, or in a manner that alternates between cams in the same direction and those in opposite directions on the main rotating shaft.

[0013] Compared with existing technologies, this utility model has the following beneficial effects:

[0014] 1. This utility model incorporates an impact rod, which uses a linkage-type power connection support to drive the main rotating shaft as the driving source for the impact rod. This allows the impact rod to impact the outer wall of the drum screen as it rotates, generating a vibration effect that clears away or clogged ore in the screen holes, thus ensuring the screening efficiency of the drum screen.

[0015] 2. This utility model connects the driving force of the drive motor through the main rotating shaft, which not only achieves the effect of multiple uses of the same power source, but also ensures the normal operation of the drum screen during normal operation, and improves work efficiency and resource utilization. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the operating structure of an embodiment of this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the operating structure of an embodiment of this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the operating structure of another embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the power connection support column of this utility model.

[0021] Explanation of key figure labels:

[0022] 1. Support base; 2. Rotary drum screen; 3. Drive motor; 4. Auxiliary wheel; 5. First screening section; 6. Second screening section; 7. Third screening section; 8. First impact rod; 9. Second impact rod; 10. Third impact rod; 11. Main shaft; 12. First fixed bracket; 13. Second fixed bracket; 14. Third fixed bracket; 15. Fourth fixed bracket; 16. Power connection support column; 17. Connecting short shaft; 18. Connecting long shaft; 19. First double-direction bevel gear; 20. Second unidirectional bevel gear; 21. Third double-direction bevel gear; 22. Fourth unidirectional bevel gear; 23. Cam; 24. Suspension rod. Detailed Implementation

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

[0024] The embodiments will be described in detail below to enable those skilled in the art to better understand the present invention:

[0025] A rotary screen for ore, such as Figures 1 to 2 As shown, the device includes a support base 1, on which a drum screen 2 is mounted. The drum screen 2 is driven by a drive motor 3 and auxiliary wheels 4, both mounted on one end of the support base 1. The principle and working process of this drive mechanism are already described in existing technologies and will not be elaborated upon here. The improvement of this invention lies in the inclusion of a first screening section 5, a second screening section 6, and a third screening section 7 on the drum screen 2. The tops of each of these sections are respectively equipped with a first impact rod 8, a second impact rod 9, and a third impact rod 10 for impacting the ore. All three impact rods are driven by a main rotating shaft 11, which is connected to the drive motor 3 for rotation. During operation, the driving force from the drive motor 3 connected to the main rotating shaft 11 not only achieves a multi-purpose effect from the same power source, improving resource utilization and saving energy, but also demonstrates the compactness and interconnectivity of the overall equipment structure design. When the drive motor 3 starts and drives the drum screen 2 to operate, its main shaft 11 also rotates synchronously, thereby driving the first impact rod 8, the second impact rod 9 and the third impact rod 10 to strike the drum screen 2 to achieve a vibration effect, thereby clearing the blocked screen holes on the drum screen 2 and restoring the screening capacity of the drum screen 2.

[0026] The specific structural principle is as follows, such as Figure 1 As shown, the drum screen 2 is firstly equipped with four fixed supports, including a first fixed support 12, a second fixed support 13, a third fixed support 14, and a fourth fixed support 15. One end of each of the four fixed supports is mounted on the support base 1. These four fixed supports are independent of the drum screen 2; that is, they are merely fixed structures set on the outer peripheral wall of the drum screen 2 and do not rotate.

[0027] The first screening zone 5 represents the area between the first fixed support 12 and the second fixed support 13, the second screening zone 6 represents the area between the second fixed support 13 and the third fixed support 14, and the third screening zone 7 represents the area between the third fixed support 14 and the fourth fixed support 15.

[0028] The main rotating shaft 11 is respectively installed on the top of the first fixed bracket 12, the second fixed bracket 13, the third fixed bracket 14, and the fourth fixed bracket 15, and rotates on all four fixed brackets.

[0029] Continue as Figure 1 as well as Figure 4As shown, the driving principle of the main rotating shaft 11 is as follows: a power connection support column 16 is provided at one end of the support base 1. A connecting short shaft 17 is rotatably mounted inside the power connection support column 16. One end of the connecting short shaft 17 is rotatably connected to the auxiliary wheel 4. A connecting long shaft 18 is rotatably connected to the top of the connecting short shaft 17. One end of the connecting long shaft 18 is rotatably connected to the main rotating shaft 11. In the prior art, when the drive motor 3 rotates, the auxiliary wheel 4 correspondingly mounted on the support base 1 around the drum screen 2 also rotates. This is achieved through a transmission shaft. Therefore, the corresponding transmission shaft is not limited in this utility model; it is assumed to exist as a matching pair. In this embodiment, the connecting short shaft 17 is rotatably connected to the auxiliary wheel 4. Therefore, when the connecting short shaft 17 rotates, it drives the connecting long shaft 18 to rotate synchronously. The rotation of the connecting long shaft 18 then causes the main rotating shaft 11 to rotate, thus achieving the power connection effect of the main rotating shaft 11.

[0030] The specific structure is configured such that a first double-direction bevel gear 19 is mounted on the connecting short shaft 17, a second one-way bevel gear 20 is mounted at one end of the connecting long shaft 18, a third double-direction bevel gear 21 is mounted at the other end of the connecting long shaft 18, and a fourth one-way bevel gear 22 is mounted at one end of the main rotating shaft 11. The second one-way bevel gear 20 meshes with the first double-direction bevel gear 19, and the third double-direction bevel gear 21 meshes with the fourth one-way bevel gear 22. When the connecting short shaft 17 rotates, the first double-direction bevel gear 19 transmits power to the second one-way bevel gear 20; when the connecting long shaft 18 rotates, the third double-direction bevel gear 21 at its other end transmits power to the fourth one-way bevel gear 22, thus achieving the rotation of the main rotating shaft 11.

[0031] When the main shaft 11 rotates, multiple cams 23, each located on the main shaft 11 in the first screening section 5, the second screening section 6, and the third screening section 7, cause the first impact rod 8, the second impact rod 9, and the third impact rod 10 to strike the drum screen 2. Firstly, multiple impact rods are elastically mounted below each cam 23, corresponding to multiple first impact rods 8, second impact rods 9, and third impact rods 10 on the first screening section 5, the second screening section 6, and the third screening section 7, respectively. Impact blocks are also provided at the lower ends of the multiple first impact rods 8, second impact rods 9, and third impact rods 10. The impact blocks strike the drum screen 2, generating impact force and vibration, thereby opening the screen holes. This cycle repeats continuously, ensuring good screening efficiency of the drum screen 2. The multiple first impact rods 8, second impact rods 9, and third impact rods 10 are elastically mounted on the suspension rods 24. The suspension rod 24 provides support for multiple impact rods and allows the multiple impact rods to slide on it. The suspension rod 24 is located below the main rotating shaft 11 and is fixedly mounted on four fixed supports respectively.

[0032] Furthermore, the cam 23 can be adjusted in multiple ways according to actual working requirements to achieve different impact and vibration effects. For example... Figure 1 and Figure 2 As shown in one embodiment, multiple cams 23 are arranged in the same direction on the main rotating shaft 11, or in opposite directions on the main rotating shaft 11. Thus, when the main rotating shaft 11 rotates, it drives the impact rods on the three screening sections to perform synchronous impact, achieving a synchronous vibration effect. Figure 3 As shown, in another embodiment, multiple cams 23 are arranged on the main rotating shaft 11 in alternating directions, so that when the main rotating shaft 11 rotates, the impact rods on each screening section can achieve alternating impact action, thus achieving the effect of intermittent vibration.

[0033] In summary, the ore drum screen 2 provided by this utility model, by incorporating an impact rod, utilizes a linkage-type power connecting support 16 to drive the main rotating shaft 11 as the driving source for the impact rod's movement. This allows the impact rod to impact the outer wall of the drum screen 2 as it rotates, generating a vibration effect that clears away ore adhering to or clogging the screen holes, thus ensuring the screening efficiency of the drum screen 2. Furthermore, this effect is achieved during normal operation of the drum screen 2, not only ensuring its normal operation but also improving work efficiency and resource utilization.

[0034] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A rotary screen for ore, comprising a support base (1), on which a rotary screen (2) is mounted, the rotary screen (2) being driven by a drive motor (3) and auxiliary wheels (4) disposed at one end of the support base (1), characterized in that, The drum screen (2) is provided with a first screening section (5), a second screening section (6) and a third screening section (7). The top of the first screening section (5), the second screening section (6) and the third screening section (7) are respectively provided with a first impact rod (8), a second impact rod (9) and a third impact rod (10) for impacting the ore. The first impact rod (8), the second impact rod (9) and the third impact rod (10) are all driven by a main rotating shaft (11). The main rotating shaft (11) is driven to rotate by connecting to a drive motor (3).

2. The ore drum screen according to claim 1, characterized in that, The drum screen (2) is provided with four fixed supports, including a first fixed support (12), a second fixed support (13), a third fixed support (14) and a fourth fixed support (15). One end of each of the four fixed supports is installed on a support base (1). The first screening section (5) is the area between the first fixed support (12) and the second fixed support (13). The second screening section (6) is the area between the second fixed support (13) and the third fixed support (14). The third screening section (7) is the area between the third fixed support (14) and the fourth fixed support (15).

3. A rotary drum screen for ore according to claim 2, characterized in that, The main rotating shaft (11) is respectively installed through and rotatably mounted on the top of the first fixed bracket (12), the second fixed bracket (13), the third fixed bracket (14) and the fourth fixed bracket (15).

4. A rotary drum screen for ore according to claim 3, characterized in that, One end of the support base (1) is provided with a power connection pillar (16), and a connecting short shaft (17) is rotatably provided inside the power connection pillar (16). One end of the connecting short shaft is rotatably connected to the auxiliary wheel (4), and a connecting long shaft (18) is rotatably connected to the top of the connecting short shaft. One end of the connecting long shaft (18) is rotatably connected to the main rotating shaft (11).

5. A rotary drum screen for ore according to claim 4, characterized in that, A set of first bidirectional bevel gears (19) is provided on the connecting short shaft (17), a second unidirectional bevel gear (20) is provided at one end of the connecting long shaft (18), a set of third bidirectional bevel gears (21) is provided at the other end of the connecting long shaft (18), and a fourth unidirectional bevel gear (22) is provided at one end of the main rotating shaft (11). The second unidirectional bevel gear (20) meshes with the first bidirectional bevel gear (19), and the third bidirectional bevel gear (21) meshes with the fourth unidirectional bevel gear (22).

6. A rotary drum screen for ore according to claim 1, characterized in that, On the main rotating shaft (11) located in the first screening section (5), the second screening section (6) and the third screening section (7), there are multiple cams (23) respectively. Multiple impact rods are elastically arranged below each cam (23), which correspond to multiple first impact rods (8), second impact rods (9) and third impact rods (10) respectively. The lower ends of the multiple first impact rods (8), second impact rods (9) and third impact rods (10) are all provided with impact blocks. The multiple first impact rods (8), second impact rods (9) and third impact rods (10) are elastically mounted on the suspension rod (24).

7. A rotary drum screen for ore according to claim 6, characterized in that, The multiple cams (23) are arranged in the same direction on the main rotating shaft (11), or in opposite directions on the main rotating shaft (11), or in the same direction and opposite directions alternately on the main rotating shaft (11).

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