Screening device for mining

Abstract

The screening device for mining comprises a base, a first supporting rod and a second supporting rod, the upper end face of the base is connected with the lower end face of the first supporting rod and the lower end face of the second supporting rod, a screening barrel is arranged between the first supporting rod and the second supporting rod, and a screen is arranged in the screening barrel; the left side and the right side of the screening barrel are rotationally connected with the first supporting rod and the second supporting rod through connecting rods correspondingly, a rotating rod is arranged below the screening barrel, a first cavity is formed in the second supporting rod, a first gear is arranged on an output shaft of a motor in the first cavity, and the left end of the rotating rod is rotationally connected with the first supporting rod. The right end of the rotating rod penetrates into the first cavity and is provided with a second gear, the first gear is in meshed connection with the second gear, the rotating rod is provided with a third gear, the lower end face of the screening barrel is provided with an arc-shaped rack, and the arc-shaped rack is in meshed connection with the third gear; the technical problems that an existing screening device for mining is poor in ore screening effect, prone to blockage and low in uniformity are solved.

Description

Technical Field

[0001] The present application relates to the technical field of mining equipment, and in particular to a screening device for mining. Background Art

[0002] Mining refers to the extraction of naturally occurring minerals such as solids (such as coal and minerals), liquids (such as crude oil) or gases (such as natural gas). This category includes underground or above-ground mining, the operation of mines, and all auxiliary work generally carried out at or near the mine site to process raw materials, such as grinding, mineral processing and treatment. It also includes the preparation work required to make the raw materials available for sale. However, it does not include the collection, purification and distribution of water, as well as geological exploration and construction engineering activities.

[0003] Nowadays, when mining, it is necessary to screen the mined ore raw materials. Usually, the equipment for screening is an ore screening device. However, the ore screening devices currently used in the mining industry on the market have poor ore screening effects, and the screening process equipment is prone to blockage, resulting in low uniformity of the screened ore, which is not conducive to the subsequent processing and use of the ore, and it is difficult to meet the market and mining industry needs.

[0004] Chinese patent number CN212468769U discloses a screening device for mining. In the design process, the filter screen is vibrated when the wave teeth rotate by clamping the wave teeth on the surface of the filter screen, thereby separating the ore. The rotating block is driven to rotate by the bearing so that when the ore is put in, the impact of the ore on the feed port is reduced; however, the screening process equipment is prone to blockage, resulting in low uniformity of the screened ore, which is not conducive to the subsequent processing and use of the ore, and needs to be improved. Utility Model Content

[0005] The embodiment of the present application provides a screening device for mining, which is used to solve the technical problems that the existing screening devices for mining have poor screening effects on ore, the screening process equipment is prone to blockage, and the uniformity of the screened ore is low.

[0006] In view of this, the present application provides a screening device for mining, comprising a base, a first support rod and a second support rod, the left and right sides of the upper end surface of the base are fixedly connected to the lower end surfaces of the first support rod and the second support rod respectively; a screening cylinder with an opening upward is provided between the first support rod and the second support rod, a horizontal screen is provided in the screening cylinder, and the left and right sides of the screening cylinder are rotatably connected to the first support rod and the second support rod respectively through connecting rods; a rotating rod is provided below the screening cylinder, a first cavity is provided in the second support rod, a motor is provided in the first cavity, a first gear is provided on the output shaft of the motor, the left end of the rotating rod is rotatably connected to the first support rod, the right end of the rotating rod penetrates into the first cavity and is fixedly provided with a second gear, and the first gear and the second gear are meshed and connected; a third gear is fixedly provided on the rotating rod fixed sleeve, and a circular arc rack is fixedly provided on the lower end surface of the screening cylinder, and the circular arc rack is meshed and connected with the third gear.

[0007] Optionally, a third support rod is provided on the left side of the first support rod, and a multi-stage electric telescopic rod is provided on the upper end of the third support rod; a rectangular slide bar is provided between the third support rod and the second support rod, and a sliding block is provided on the sliding sleeve of the rectangular slide bar; a feed hopper is provided above the screening drum, and the outer surface of the feed hopper close to the rectangular slide bar is fixedly connected to the sliding block, and the movable end of the multi-stage electric telescopic rod is fixedly connected to the left side of the sliding block.

[0008] Optionally, the lower end of the feed hopper is placed in the opening of the screening drum.

[0009] Optionally, the bottom of the motor is fixedly connected to the bottom inner wall of the first cavity.

[0010] Optionally, placement grooves are provided in the upper inner walls on both sides of the screening cylinder, and placement blocks are provided on both sides of the screen, and the placement blocks are placed in the placement grooves.

[0011] Optionally, the lower end surface of the third support rod is fixedly connected to the upper end surface of the base.

[0012] Optionally, foot rods are provided at the four corners of the bottom of the base.

[0013] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0014] The present application provides a screening device for mining, which drives a rotating rod to rotate counterclockwise and clockwise repeatedly through a motor, and the third gear on the rotating rod drives the arc-shaped rack meshing with it to rotate counterclockwise and clockwise repeatedly. At this time, the screening drum swings counterclockwise and clockwise repeatedly, thereby screening the ore placed on the screen in the screening drum, improving the efficiency and uniformity of ore screening, and because the screening drum swings repeatedly, the ore on the screen keeps flowing, and the screen is not easily blocked, further improving the screening efficiency of the screening device for the ore;

[0015] The present application uses a multi-stage electric telescopic rod to push the feed hopper to move left and right to send the ore to the screen in the screening cylinder, so that the ore to be screened is evenly sent to the screen, thereby avoiding clogging of the screen and further improving the screening efficiency of the screening device for ore. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly express the technical solution of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A front cross-sectional view of a mining screening device provided in an embodiment of the present application;

[0018] Figure 2 It is a front view of a screening device for mining provided in an embodiment of the present application;

[0019] Figure 3 This is a top view of a mining screening device provided in an embodiment of the present application.

[0020] Wherein, the accompanying drawings are marked as follows:

[0021] 1. Base; 2. First support rod; 3. Second support rod; 4. Screening cylinder; 5. Connecting rod; 6. Screen; 7. First cavity; 8. Motor; 9. First gear; 10. Rotating rod; 11. Second gear; 12. Third gear; 13. Arc rack; 14. Third support rod; 15. Multi-stage electric telescopic rod; 16. Rectangular slide bar; 17. Sliding block; 18. Feed hopper; 19. Placement slot; 20. Placement block; 21. Foot rod. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be connected, detachably connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0025] For easier understanding, see Figures 1 to 3An embodiment of a screening device for mining provided in the present application includes a base 1, a first support rod 2 and a second support rod 3. The upper end surface of the base 1 is fixedly connected to the lower end surfaces of the first support rod 2 and the second support rod 3 which are respectively arranged on the left and right sides of the upper end surface of the base 1. The base 1 is used to carry and place the first support rod 2 and the second support rod 3. A screening cylinder 4 with an opening upward is provided between the first support rod 2 and the second support rod 3. The screening cylinder 4 is arranged horizontally and is used to screen the ore placed therein. A horizontal screen 6 is provided in the screening cylinder 4, and the screen 6 is used to screen the ore placed in the screening cylinder 4. Screening, the left and right sides of the screening drum 4 are rotatably connected with the first support rod 2 and the second support rod 3 through the connecting rod 5 respectively, so that the screening drum 4 can swing repeatedly, and a rotating rod 10 is provided below the screening drum 4, and a first cavity 7 is provided in the second support rod 3, and a motor 8 is provided in the first cavity 7. The motor 8 is a stepping motor 8 that can rotate counterclockwise and clockwise repeatedly. A first gear 9 is provided on the output shaft of the motor 8. The left end of the rotating rod 10 is rotatably connected with the first support rod 2 through a bearing, and the right end of the rotating rod 10 can be rotatably inserted into the first cavity 7 and fixed with a second gear 11. The first gear 9 and the second gear 11 are meshed and connected. Then, when the first gear 9 rotates, the second gear 11 is driven to rotate accordingly, the rotating rod 10 is fixedly sleeved with a third gear 12, and the lower end surface of the screening drum 4 is provided with an arc-shaped rack 13, and the arc-shaped rack 13 is meshed and connected with the third gear 12. When the third gear 12 rotates, it drives the screening drum 4 to rotate by driving the arc-shaped rack 13; through the above arrangement, when the screening drum 4 is working, the motor 8 starts its output shaft to start rotating counterclockwise and clockwise repeatedly, and drives the first gear 9 and the second gear 11 meshed and connected with the first gear 9 to rotate counterclockwise and clockwise repeatedly, and the second gear 11 then drives the second gear 11 connected to it The rotating rod 10 also rotates repeatedly counterclockwise and clockwise, and then drives the arc-shaped rack 13 meshing with it to rotate repeatedly counterclockwise and clockwise through the third gear 12. At this time, the screening drum 4 is driven to swing repeatedly counterclockwise and clockwise. The speed of the swinging can be adjusted by controlling the rotation speed of the motor 8, so as to realize screening of the ore placed on the screen 6 in the screening drum 4, thereby improving the efficiency and uniformity of ore screening. Moreover, due to the continuous and repeated swinging of the screening drum 4, the ore on the screen 6 keeps flowing, and it is not easy to block the screen 6, thereby further improving the screening efficiency of the screening device for ore.

[0026] As a further improvement of the above embodiment, a third support rod 14 is provided on the left side of the first support rod 2, a multi-stage electric telescopic rod 15 is provided on the upper end of the third support rod 14, a rectangular slide bar 16 is provided between the third support rod 14 and the second support rod 3, a sliding block 17 is provided on the sliding sleeve of the rectangular slide bar 16, a feed hopper 18 is provided above the screening drum 4, an outer surface of the feed hopper 18 close to the rectangular slide bar 16 is fixedly connected to the sliding block 17, and the movable end of the multi-stage electric telescopic rod 15 is fixedly connected to the left side of the sliding block 17. The multi-stage electric telescopic rod 15 is used to push the slider 17 to move left and right along the rectangular slide bar 16, and the slider 17 is used to drive the feed hopper 18 connected thereto to move left and right along the rectangular slide bar 16; through the above arrangement, when ore screening begins, the multi-stage electric telescopic rod 15 starts to work, and pushes the slider 17 to move left and right along the rectangular slide bar 16 through its movable end, and the slider 17 then drives the feed hopper 18 connected thereto to move left and right along the rectangular slide bar 16, and then when the ore is sent to the screen 6 in the screening cylinder 4, the ore is evenly distributed in the screen 6 without forming local accumulation, thereby avoiding blockage of the screen 6, and further improving the screening efficiency of the screening device for ore.

[0027] Furthermore, the lower end of the feed hopper 18 is placed in the opening of the screening drum 4 , thereby facilitating the ore to be placed into the screening drum 4 through the feed hopper 18 .

[0028] Furthermore, the bottom of the motor 8 is fixedly connected to the bottom inner wall of the first cavity 7, so that the stability of the motor 8 is improved and the motor 8 is prevented from loosening when the screening device is working.

[0029] Furthermore, placement grooves 19 are provided in the upper inner walls on both sides of the screening cylinder 4, and placement blocks 20 are provided on both sides of the screen 6. The placement blocks 20 are placed in the placement grooves 19. The placement grooves 19 and the placement blocks 20 facilitate placing the screen 6 into the screening cylinder 4 or taking the screen 6 out of the screening cylinder 4.

[0030] Furthermore, the lower end surface of the third support rod 14 is fixedly connected to the upper end surface of the base 1, thereby improving the stability of the third support.

[0031] Furthermore, foot rods 21 are provided at the four corners of the bottom of the base 1, and the foot rods 21 are used to support and elevate the base 1 to prevent the bottom of the base 1 from directly contacting the ground and being easily damaged.

[0032] The working principle of the utility model is:

[0033] When the screening drum 4 is working, after the motor 8 is started, its output shaft begins to rotate counterclockwise and clockwise repeatedly, and drives the first gear 9 and the second gear 11 meshing with the first gear 9 to rotate counterclockwise and clockwise repeatedly. The second gear 11 then drives the rotating rod 10 connected thereto to rotate counterclockwise and clockwise repeatedly, and then drives the arc-shaped rack 13 meshing with it to rotate counterclockwise and clockwise repeatedly through the third gear 12. At this time, the screening drum 4 is driven to rotate counterclockwise and clockwise repeatedly, and then the multi-stage electric telescopic rod 15 starts to work, through its activity The moving end pushes the slider 17 to move left and right along the rectangular slide bar 16, and the slider 17 then drives the feed hopper 18 connected thereto to move left and right along the rectangular slide bar 16, and then when the ore is sent to the screen 6 in the screening cylinder 4, the ore is evenly distributed in the screen 6 without forming local accumulation, thereby realizing screening of the ore placed on the screen 6 in the screening cylinder 4, improving the efficiency and uniformity of ore screening, and due to the continuous and repeated swinging of the screening cylinder 4, the ore on the screen 6 keeps flowing, and it is not easy to block the screen 6, further improving the screening efficiency of the screening device for ore.

[0034] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A screening device for mining, characterized in that: The invention comprises a base (1), a first support rod (2) and a second support rod (3), wherein the left side and the right side of the upper end surface of the base (1) are respectively fixedly connected to the lower end surfaces of the first support rod (2) and the second support rod (3); a screening drum (4) with an opening facing upward is provided between the first support rod (2) and the second support rod (3), a horizontal screen (6) is provided inside the screening drum (4), and the left and right sides of the screening drum (4) are respectively rotatably connected to the first support rod (2) and the second support rod (3) via connecting rods (5); a rotating rod (10) is provided below the screening drum (4), and a rotating rod (10) is provided inside the second support rod (3) A first cavity (7) is provided, a motor (8) is provided in the first cavity (7), a first gear (9) is provided on the output shaft of the motor (8), the left end of the rotating rod (10) is rotatably connected to the first support rod (2), the right end of the rotating rod (10) penetrates into the first cavity (7) and is fixedly provided with a second gear (11), the first gear (9) and the second gear (11) are meshingly connected; a third gear (12) is fixedly sleeved on the rotating rod (10), a circular arc-shaped rack (13) is fixedly provided on the lower end surface of the screening drum (4), the circular arc-shaped rack (13) is meshingly connected with the third gear (12).

2. A screening device for mining according to claim 1, characterized in that: A third support rod (14) is provided on the left side of the first support rod (2), and a multi-stage electric telescopic rod (15) is provided on the upper end of the third support rod (14); a rectangular slide bar (16) is provided between the third support rod (14) and the second support rod (3), and a sliding block (17) is provided on the sliding sleeve of the rectangular slide bar (16); a feed hopper (18) is provided above the screening drum (4), and an outer surface of the feed hopper (18) close to the rectangular slide bar (16) is fixedly connected to the sliding block (17), and a movable end of the multi-stage electric telescopic rod (15) is fixedly connected to the left side of the sliding block (17).

3. A screening device for mining according to claim 2, characterized in that: The lower end of the feed hopper (18) is placed in the opening of the screening cylinder (4).

4. A screening device for mining according to claim 1, characterized in that: The bottom of the motor (8) is fixedly connected to the bottom inner wall of the first cavity (7).

5. A screening device for mining according to claim 1, characterized in that: Placement grooves (19) are provided in the upper inner walls of both sides of the screening cylinder (4), and placement blocks (20) are provided on both sides of the screen (6), and the placement blocks (20) are placed in the placement grooves (19).

6. A screening device for mining according to claim 2, characterized in that: The lower end surface of the third support rod (14) is fixedly connected to the upper end surface of the base (1).

7. A screening device for mining according to claim 1, characterized in that: Foot rods (21) are provided at the four corners of the bottom of the base (1).

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