A steel ball screening device

Abstract

This utility model discloses a steel ball screening device, belonging to the field of steel ball screening technology. It includes a frame and a first conveyor belt, which is installed at an angle on the frame. A screening assembly is arranged above the first conveyor belt. The screening assembly includes a screening plate and a deflecting plate, both of which are designed at an angle. A gap is provided between the screening plate and the first conveyor belt. The screening plate is located on the lower side of the first conveyor belt. Because both the screening plate and the deflecting plate are designed at an angle, during movement, the steel balls will continuously contact the screening plate and the deflecting plate, achieving the effect of deflecting the steel balls. This prevents steel balls smaller than a millimeter from being mixed with larger steel balls, achieving separation of small steel balls, which then fall through the gap at the bottom of the screening plate. Steel balls larger than a millimeter roll off the end of the first conveyor belt, thus achieving the screening of the steel balls.

Description

Technical Field

[0001] This utility model relates to the field of steel ball screening technology, and in particular to a steel ball screening device. Background Technology

[0002] The mechanical engineering industry requires a large number of steel balls, such as bearings, so a large number of steel balls are produced every year.

[0003] After the steel balls are produced and formed, they will vary in size. They need to be screened according to the diameter of each steel ball and classified according to specifications. At this time, steel ball screening equipment is used to screen the steel balls.

[0004] In current steel ball screening equipment, when screening large quantities of steel balls in a factory, a large number of steel balls are directly poured into the equipment in order to pursue screening efficiency. At this time, steel balls of different sizes will continue to be mixed together during the screening process, and some small steel balls are easily affected by the large balls.

[0005] Especially when screening steel balls with similar diameters, such as tiny steel balls with diameters between 2 and 8 millimeters, the small steel balls roll forward with the large steel balls during the screening process and become mixed in with the large balls. As a result, many small steel balls cannot be screened out, leading to missed selection. Utility Model Content

[0006] The purpose of this invention is to solve the technical problem in the prior art where steel balls roll forward with large steel balls, becoming mixed in with the large steel balls, and many small steel balls cannot be screened out. Therefore, a steel ball screening device is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A steel ball screening device includes a frame and a first conveyor belt, the first conveyor belt being installed at an angle on the frame; a screening assembly is disposed above the first conveyor belt; the screening assembly includes a screening plate and a material-pushing plate, both of which are designed at an angle; a gap is provided between the screening plate and the first conveyor belt; the screening plate is located on the lower side of the first conveyor belt.

[0009] Preferably, the frame is further equipped with a second conveyor belt, a third conveyor belt, and a fourth conveyor belt; the first, third, and fourth conveyor belts are parallel to each other, with the third conveyor belt located in the middle and its height lower than that of the first and fourth conveyor belts; the first and fourth conveyor belts are both designed to be inclined towards the third conveyor belt; a screening component is also provided above the fourth conveyor belt; the second conveyor belt is located between the first and fourth conveyor belts.

[0010] Preferably, a first baffle plate is fixedly connected to the frame; the first baffle plate is located at the end of the first conveyor belt and on one side of the second conveyor belt.

[0011] Preferably, a third baffle plate and a fourth baffle plate are fixedly connected to the frame; the third baffle plate is located below the lower side of the fourth conveyor belt; the fourth baffle plate is located below the lower side of the first conveyor belt.

[0012] Preferably, a second baffle plate is fixedly connected to the frame; the second baffle plate is located above the third conveyor belt and between the third baffle plate and the fourth baffle plate.

[0013] Preferably, a conveyor belt and a conveyor cylinder are installed on the frame; the top of the conveyor belt is located at the inlet of the conveyor cylinder; the outlet of the conveyor cylinder is located on the first conveyor belt and between the screening plate and the feeding plate.

[0014] Preferably, a baffle is fixedly connected to the outlet of the conveyor cylinder.

[0015] Preferably, a hopper is installed on the frame, and the hopper is located above the conveyor belt.

[0016] Preferably, it further includes a first screening box and a second screening box; the first screening box is located at the end of the third conveyor belt; and the second screening box is located at the end of the fourth conveyor belt.

[0017] Compared with the prior art, the present invention provides a steel ball screening device with the following advantages:

[0018] 1. In this steel ball screening equipment, both the screening plate and the feeding plate are designed to be inclined. Therefore, during the movement, the steel balls will continuously come into contact with the screening plate and the feeding plate, achieving the effect of agitating the steel balls. This prevents steel balls smaller than millimeters from being mixed with larger steel balls, achieving the separation of small steel balls, which then fall through the gap at the bottom of the screening plate. Meanwhile, steel balls larger than millimeters roll off from the end of the first conveyor belt, thereby achieving the screening of steel balls.

[0019] 2. In this steel ball screening equipment, the steel balls rolling off the end of the first conveyor belt fall directly onto the second conveyor belt, and are then transported to the fourth conveyor belt. The steel balls fall into the screening components of the fourth conveyor belt, that is, between the screening plate and the feeding plate, and are screened again by the fourth conveyor belt to avoid missing any small steel balls smaller than millimeters, thus improving the screening quality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a steel ball screening device proposed in this utility model. Figure 1 ;

[0021] Figure 2This is a schematic diagram of the structure of a steel ball screening device proposed in this utility model. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of a steel ball screening device proposed in this utility model. Figure 3 ;

[0023] Figure 4 This is a cross-sectional view of a steel ball screening device proposed in this utility model;

[0024] Figure 5 This is a side view of a steel ball screening device proposed in this utility model;

[0025] Figure 6 This is a side view of the screening plate of a steel ball screening device proposed in this utility model;

[0026] Figure 7 This is a cross-sectional view of the conveyor cylinder of a steel ball screening device proposed in this utility model.

[0027] In the diagram: 1. Frame; 101. Conveyor belt; 102. Hopper; 2. First conveyor belt; 201. Conveyor cylinder; 202. Baffle; 3. Second conveyor belt; 301. First baffle plate; 4. Third conveyor belt; 401. Fourth conveyor belt; 5. First screening box; 501. Second screening box; 6. Screening plate; 601. Feeding plate; 7. Second baffle plate; 701. Third baffle plate; 702. Fourth baffle plate. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Example:

[0031] like Figures 1-7 A steel ball screening device includes a frame 1 and a first conveyor belt 2, the first conveyor belt 2 being installed at an angle on the frame 1, such as... Figure 5 and Figure 6 The first conveyor belt 2 is inclined downward on one side at an angle of 5-20°.

[0032] A screening assembly is installed above the first conveyor belt 2; the screening assembly includes a screening plate 6 and a material-pushing plate 601, both of which are inclined. Figure 1 An inclined passage is formed on the first conveyor belt 2, and the screening plate 6 and the feeding plate 601 are fixed on the frame 1.

[0033] A gap is provided between the screening plate 6 and the first conveyor belt 2. The gap is determined by the steel balls to be screened. The screening plate 6 is located on the lower side of the first conveyor belt 2.

[0034] In this case, the screening is performed on tiny steel balls with a diameter between 2 and 8 millimeters, while those with a diameter of 4 millimeters or more and less are screened; therefore, in this case, the gap between the screening plate 6 and the first conveyor belt 2 is 4 millimeters.

[0035] The gap between the feeding plate 601 and the first conveyor belt 2 should be controlled at 1-2 mm, or they can be directly attached.

[0036] When steel balls need to be screened, the first conveyor belt 2 moves and pours the steel balls between the screening plate 6 and the feeding plate 601, and is located at the beginning of the movement of the first conveyor belt 2. At this time, the steel balls will move forward under the action of the first conveyor belt 2. At the same time, since the first conveyor belt 2 is inclined, the steel balls will also roll downward synchronously, rolling towards one side of the screening plate 6. Then, steel balls with a diameter of less than 4 mm will directly pass through the gap and roll down from the lower side of the first conveyor belt 2.

[0037] Meanwhile, the steel balls remaining on the first conveyor belt 2 move forward with it. Because both the screening plate 6 and the material guide plate 601 are inclined, the steel balls will continuously contact the screening plate 6 and the material guide plate 601 during the movement, thus agitating the steel balls and preventing steel balls smaller than 4 mm from being mixed with the larger steel balls. This separates the smaller steel balls, which then fall through the gap at the bottom of the screening plate 6. Steel balls larger than 4 mm roll off the end of the first conveyor belt 2, thereby achieving the screening of the steel balls.

[0038] like Figures 1-5 The frame 1 is also equipped with a second conveyor belt 3, a third conveyor belt 4, and a fourth conveyor belt 401.

[0039] The first conveyor belt 2, the third conveyor belt 4, and the fourth conveyor belt 401 are parallel to each other, with the third conveyor belt 4 located in the middle and its height lower than that of the first conveyor belt 2 and the fourth conveyor belt 401.

[0040] The first conveyor belt 2 and the fourth conveyor belt 401 are both designed to be inclined toward the third conveyor belt 4, therefore, the fourth conveyor belt 401 is also designed to be inclined.

[0041] A filtering component is also installed above the fourth conveyor belt 401; the filtering component is the same as that on the first conveyor belt 2.

[0042] The second conveyor belt 3 is located between the first conveyor belt 2 and the fourth conveyor belt 401.

[0043] The beginning of the second conveyor belt 3 is located at the end of the movement of the first conveyor belt 2 and below the first conveyor belt 2.

[0044] The end of the second conveyor belt 3 is located at the beginning of the fourth conveyor belt 401, above the fourth conveyor belt 401, and directly above the screening component of the fourth conveyor belt 401.

[0045] In other words, the heights of the first conveyor belt 2, the second conveyor belt 3, the fourth conveyor belt 401, and the third conveyor belt 4 decrease sequentially.

[0046] The steel balls that roll off the end of the first conveyor belt 2 fall directly onto the second conveyor belt 3, and are then conveyed to the fourth conveyor belt 401. The steel balls fall into the screening component of the fourth conveyor belt 401, that is, between the screening plate 6 and the material feeding plate 601, and are screened again by the fourth conveyor belt 401 to avoid missing any small steel balls smaller than 4 mm, thus improving the screening quality.

[0047] Steel balls larger than 4 mm fall directly from the end of the fourth conveyor belt 401, while steel balls smaller than 4 mm fall through the side wall of the fourth conveyor belt 401.

[0048] By positioning the third conveyor belt 4 between the first conveyor belt 2 and the fourth conveyor belt 401, steel balls smaller than 4 millimeters that fall from the first conveyor belt 2 and the fourth conveyor belt 401 will all fall onto the third conveyor belt 4 and be transported away uniformly.

[0049] Steel balls larger than 4 millimeters fall off at the end of the fourth conveyor belt 401.

[0050] like Figure 1 and Figure 2 A first baffle plate 301 is fixedly connected to the frame 1; the first baffle plate 301 is located at the end of the first conveyor belt 2 and on one side of the second conveyor belt 3, on the side of the second conveyor belt 3 away from the first conveyor belt 2.

[0051] The first baffle plate 301 acts as a barrier to prevent the steel balls falling from the end of the first conveyor belt 2 from falling onto the second conveyor belt 3 due to inertia; during the falling process, the steel balls fall onto the second conveyor belt 3 after contacting the first baffle plate 301.

[0052] like Figure 2 , Figure 4 , Figure 5 The frame 1 is fixedly connected with a third baffle plate 701 and a fourth baffle plate 702; the third baffle plate 701 is located below the lower side of the fourth conveyor belt 401; the fourth baffle plate 702 is located below the lower side of the first conveyor belt 2.

[0053] Both the third baffle plate 701 and the fourth baffle plate 702 are inclined, with the side with the lower height located above the third conveyor belt 4.

[0054] Steel balls smaller than 4 mm that roll off from one side of the first conveyor belt 2 and the fourth conveyor belt 401 will roll smoothly onto the third conveyor belt 4 via the fourth baffle plate 702 and the third baffle plate 701.

[0055] like Figure 2 and Figure 4 A second baffle plate 7 is fixedly connected to the frame 1; the second baffle plate 7 is located above the third conveyor belt 4 and between the third baffle plate 701 and the fourth baffle plate 702.

[0056] Because of the large height difference between the first conveyor belt 2 and the third conveyor belt 4, a second baffle plate 7 was designed to avoid excessive impact force during the falling of the steel ball.

[0057] The steel balls rolling off one side of the first conveyor belt 2 will first fall onto the second baffle 7, then onto the fourth baffle 702, and finally onto the third conveyor belt 4, thus reducing the impact.

[0058] like Figures 1-5 , Figure 7 The frame 1 is equipped with a conveyor belt 101 and a conveyor cylinder 201; the top of the conveyor belt 101 is located at the inlet of the conveyor cylinder 201; the outlet of the conveyor cylinder 201 is located on the first conveyor belt 2 and between the screening plate 6 and the material feeding plate 601; a baffle 202 is fixedly connected to the outlet of the conveyor cylinder 201.

[0059] A hopper 102 is installed on the frame 1, and the hopper 102 is located above the conveyor belt 101.

[0060] During the screening process, the workers pour steel balls into the hopper 102, then transport them to the conveyor cylinder 201 via the conveyor belt 101, and finally drop them onto the first conveyor belt 2, which is located between the screening plate 6 and the feeding plate 601.

[0061] The baffle 202 can effectively prevent steel balls falling from the conveyor cylinder 201 from directly impacting the screening plate 6, thus playing a blocking role.

[0062] It also includes a first screening box 5 and a second screening box 501; the first screening box 5 is located at the end of the third conveyor belt 4; the second screening box 501 is located at the end of the fourth conveyor belt 401.

[0063] Steel balls smaller than 4 mm fall directly into the first screening box 5, while steel balls larger than 4 mm fall directly into the second screening box 501.

[0064] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steel ball screening device, comprising a frame (1) and a first conveyor belt (2), characterized in that, The first conveyor belt (2) is installed at an angle on the frame (1); A screening component is provided above the first conveyor belt (2); The screening component includes a screening plate (6) and a material-pulling plate (601), both of which are inclined. A gap is provided between the screening plate (6) and the first conveyor belt (2); The screening plate (6) is located on the lower side of the first conveyor belt (2).

2. A steel ball screening apparatus according to claim 1, wherein The frame (1) is also equipped with a second conveyor belt (3), a third conveyor belt (4), and a fourth conveyor belt (401). The first conveyor belt (2), the third conveyor belt (4), and the fourth conveyor belt (401) are parallel to each other, and the third conveyor belt (4) is located in the middle, and the height of the third conveyor belt (4) is lower than that of the first conveyor belt (2) and the fourth conveyor belt (401). The first conveyor belt (2) and the fourth conveyor belt (401) are both designed to be inclined toward the third conveyor belt (4); A screening component is also provided above the fourth conveyor belt (401); The second conveyor belt (3) is located between the first conveyor belt (2) and the fourth conveyor belt (401).

3. A steel ball screening apparatus according to claim 2, wherein A first baffle plate (301) is fixedly connected to the frame (1); The first baffle (301) is located at the end of the first conveyor belt (2) and on one side of the second conveyor belt (3).

4. A steel ball screening apparatus according to claim 2, wherein The frame (1) is fixedly connected to a third baffle plate (701) and a fourth baffle plate (702). The third baffle (701) is located below the lower side of the fourth conveyor belt (401); The fourth baffle (702) is located below the lower side of the first conveyor belt (2).

5. A steel ball screening apparatus according to claim 4, wherein A second baffle plate (7) is fixedly connected to the frame (1); The second baffle (7) is located above the third conveyor belt (4) and between the third baffle (701) and the fourth baffle (702).

6. A steel ball screening apparatus according to claim 1, wherein The frame (1) is equipped with a conveyor belt (101) and a conveyor cylinder (201). The top of the conveyor belt (101) is located at the inlet of the conveyor cylinder (201); The outlet of the conveyor cylinder (201) is located on the first conveyor belt (2) and between the screening plate (6) and the feeding plate (601).

7. A steel ball screening device according to claim 6, characterized in that, A baffle (202) is fixedly connected to the outlet of the conveyor tube (201).

8. A steel ball screening device according to claim 6, characterized in that, A hopper (102) is installed on the frame (1), and the hopper (102) is located above the conveyor belt (101).

9. A steel ball screening device according to claim 2, characterized in that, It also includes a first screening box (5) and a second screening box (501); The first screening box (5) is located at the end of the third conveyor belt (4); The second screening box (501) is located at the end of the fourth conveyor belt (401).

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