Screening equipment for chromium-manganese-tungsten wear-resistant steel ball production

Abstract

The utility model discloses screening equipment for producing chromium-manganese-tungsten wear-resistant steel balls, belongs to the technical field of wear-resistant steel ball production equipment, and overcomes the defects that the wear-resistant steel balls with small sizes cannot penetrate through a filter screen due to the fact that the position of a blanking port is fixed and the wear-resistant steel balls are accumulated at local positions of the screen, and the production efficiency is improved. And meanwhile, under the influence of the self weight and the falling distance of the wear-resistant steel balls, the wear-resistant steel balls impact the filter screen when falling onto the filter screen without hindrance, the filter screen is damaged when the impact force exceeds the limit borne by the filter screen, and the screening effect of the wear-resistant steel balls is affected. Through the arrangement of the buffer type material guiding mechanism, the rotating rod is acted to drive the material receiving plate and the sliding plate to rotate downwards as a whole, and meanwhile, the wear-resistant steel balls are fed into the screening box in the process, so that the wear-resistant steel balls can be prevented from being accumulated on the screening plate, and when the wear-resistant steel balls fall into the screening box, the wear-resistant steel balls fall into the material receiving plate firstly; the wear-resistant steel balls are prevented from directly falling onto the surface of the screening plate.

Description

Technical Field

[0001] The utility model belongs to the technical field of wear-resistant steel ball production equipment, and specifically relates to screening equipment for the production of chromium-manganese-tungsten wear-resistant steel balls. Background Art

[0002] Wear-resistant steel balls are one of the important components used in ball mills during grinding. The materials are ground by mutual squeezing and falling between the wear-resistant steel balls. They are widely used in coal mining, metallurgy and other industries. The size of the wear-resistant steel balls is one of the important factors affecting the grinding quality, and different sizes and materials of grinding steel balls are required for different grinding effects. Among them, chromium-manganese-tungsten wear-resistant steel balls are the most widely used.

[0003] The existing wear-resistant steel ball screening equipment screens steel balls of different sizes through a screen. However, since the position of the drop port is fixed, the wear-resistant steel balls poured through the drop port will accumulate in a local position of the screen, resulting in small-sized wear-resistant steel balls being unable to pass through the filter. At the same time, under the influence of the wear-resistant steel balls' own weight and the falling distance, the wear-resistant steel balls will impact the filter when they fall unimpeded onto the filter. When the impact force exceeds the limit that the filter can withstand, the filter will be damaged, which will ultimately affect the screening effect of the wear-resistant steel balls. Utility Model Content

[0004] The utility model aims to provide a screening device for producing chromium-manganese-tungsten wear-resistant steel balls to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: comprising a screening box with a cavity inside, a feeding port is arranged on the top surface of the screening box, a screening plate is installed between the inner walls on both sides of the screening box, a plurality of material dropping holes are opened on the screening plate, a vibrator is installed on the bottom surface of the screening plate, and a buffer-type material guiding mechanism is also arranged above the screening plate;

[0006] The buffer-type material guiding mechanism includes a material receiving plate obliquely arranged above one side of the screening plate, a rotating rod is fixedly passed through the inner wall of one end of the material receiving plate, the rotating rod is laterally rotatably arranged between the inner walls on both sides of the screening box, a sliding plate is slidably arranged on the outer wall of the other end of the material receiving plate, the discharge end of the feed port corresponds to the interior of the material receiving plate, and the openings of the material receiving plate and the sliding plate are both facing the material taking door.

[0007] It should be noted in the solution that a driving motor is installed on one end surface of the screening box, and the output shaft of the driving motor rotates and penetrates into the screening box and is fixed to one end of the rotating rod.

[0008] It is further worth mentioning that a connecting column is fixed on the inner wall of the sliding plate, a sliding groove adapted to the connecting column is opened on the outer wall of the receiving plate, and a telescopic spring is fixed between the connecting column and the inner wall of one side of the sliding groove.

[0009] It is further worth mentioning that a plurality of deceleration balls are fixedly embedded on the surfaces of the receiving plate and the sliding plate.

[0010] Compared with the prior art, the screening equipment for producing chromium-manganese-tungsten wear-resistant steel balls provided by the utility model has at least the following beneficial effects:

[0011] (1) Through the setting of the buffer-type material guiding mechanism, the rotating rod drives the receiving plate and the sliding plate to rotate downward as a whole, so that the sliding plate is squeezed by the screening plate and slides relatively upward along the receiving plate. At the same time, in this process, the feed port is used to deliver wear-resistant steel balls into the screening box. The wear-resistant steel balls roll along the sliding plate to the screening plate and can be evenly laid on the screening plate as the sliding plate rotates, thereby avoiding the accumulation of wear-resistant steel balls on the screening plate. When the wear-resistant steel balls fall in the screening box, the wear-resistant steel balls will first fall into the receiving plate, and then roll along the surface of the receiving plate and the sliding plate to the screening plate, thereby avoiding the wear-resistant steel balls directly falling onto the surface of the screening plate, causing impact on the screening plate and thus causing damage to the screening plate.

[0012] (2) By setting the deceleration ball, when the wear-resistant steel ball rolls along the surface of the receiving plate and the sliding plate toward the screening plate, the deceleration ball can decelerate the rolling process of the wear-resistant steel ball, and can further limit the rolling speed of the wear-resistant steel ball to prevent the wear-resistant steel ball from rolling too fast and impacting the screening plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0014] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 4 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0017] In the figure: 1. screening box; 2. feed inlet; 3. drive motor; 4. material taking door; 5. sealing plate; 6. rotating rod; 7. receiving plate; 8. sliding plate; 9. deceleration ball; 10. drop hole; 11. screening plate; 12. drop box; 13. telescopic spring; 14. connecting column; 15. handle. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 3 As shown, the utility model provides a screening device for producing chromium-manganese-tungsten wear-resistant steel balls, comprising a screening box 1 with a cavity inside, a feeding port 2 is arranged on the top surface of the screening box 1, a screening plate 11 is installed between the inner walls on both sides of the screening box 1, a plurality of material dropping holes 10 are opened on the screening plate 11, a vibrator is installed on the bottom surface of the screening plate 11, a material dropping box 12 is arranged below the screening plate 11, and the material dropping box 12 is placed on the inner wall of the bottom end of the screening box 1, a first rectangular groove adjacent to the screening plate 11 is opened on one side wall of the screening box 1, a material taking door 4 hingedly connected to the outer wall of the screening box 1 is arranged outside the first rectangular groove, a second rectangular groove is opened on one end surface of the screening box 1, a sealing plate 5 hingedly connected to the outer wall of the screening box 1 is arranged outside the second rectangular groove, and a handle 15 is fixed on the sealing plate 5;

[0020] Through the arrangement of the material taking door 4, the sealing plate 5, the screening plate 11 and the blanking box 12, when the wear-resistant steel balls need to be screened, the wear-resistant steel balls are poured into the screening box 1 through the feed port 2, and the wear-resistant steel balls fall onto the screening plate 11. The vibrator is turned on to drive the screening plate 11 to vibrate. When the screening plate 11 vibrates, the wear-resistant steel balls of different sizes can be screened through the blanking holes 10. The wear-resistant steel balls with a diameter smaller than the aperture of the blanking holes 10 can pass through the blanking holes 10 and fall into the blanking box 12, and the wear-resistant steel balls with a diameter larger than the aperture of the blanking holes 10 will remain on the screening plate 11. Then, the material taking door 4 and the sealing plate 5 are opened respectively, and the wear-resistant steel balls remaining on the screening plate 11 can be manually taken out through the first rectangular groove. Then, the blanking box 12 is taken out from the screening box 1, and the screening of wear-resistant steel balls of different sizes can be achieved.

[0021] However, in reality, since the position of the feed port 2 is fixed, the wear-resistant steel balls poured into the screening box 1 through the feed port 2 will accumulate in a local position of the screening plate 11, resulting in the small-sized wear-resistant steel balls being unable to pass through the drop hole 10 and fall into the drop box 12. At the same time, under the influence of the wear-resistant steel balls' own weight and the falling distance, when the wear-resistant steel balls fall onto the screening plate 11 unimpeded, they will impact the screening plate 11. When the impact force exceeds the limit that the screening plate 11 can withstand, the screening plate 11 will be damaged, which will eventually affect the screening effect of the wear-resistant steel balls.

[0022] To solve the above problems, refer to Figures 1 to 3 As shown, it is worth noting that a buffer-type material guiding mechanism is provided above the screening plate 11;

[0023] The buffer-type material guiding mechanism includes a receiving plate 7 obliquely arranged above one side of the screening plate 11, a rotating rod 6 is fixedly penetrated in the inner wall of one end of the receiving plate 7, and the rotating rod 6 is horizontally rotatably arranged between the inner walls of both sides of the screening box 1, and a sliding plate 8 is slidably arranged on the outer wall of the other end of the receiving plate 7, and the discharge end of the feed port 2 corresponds to the inside of the receiving plate 7, and the openings of the receiving plate 7 and the sliding plate 8 are both facing the material taking door 4;

[0024] The bottom surface of the sliding plate 8 contacts the screening plate 11, so that the sliding plate 8 is squeezed by the screening plate 11 and slides relatively upward along the material receiving plate 7, and slides from one side of the screening plate 11 to the other side along the surface of the screening plate 11. At the same time, in this process, the feed port 2 is used to deliver wear-resistant steel balls into the screening box 1, and the wear-resistant steel balls roll along the sliding plate 8 to the screening plate 11, and can be evenly laid on the screening plate 11 as the sliding plate 8 rotates, thereby preventing the wear-resistant steel balls from accumulating on the screening plate 11, and when the wear-resistant steel balls fall in the screening box 1, the wear-resistant steel balls will first fall into the material receiving plate 7, and then roll onto the screening plate 11 along the surfaces of the material receiving plate 7 and the sliding plate 8, thereby preventing the wear-resistant steel balls from directly falling onto the surface of the screening plate 11, causing impact on the screening plate 11 and thus causing damage to the screening plate 11.

[0025] Further, refer to Figure 3 As shown, it is worth noting that a driving motor 3 is installed on one end surface of the screening box 1, and the output shaft of the driving motor 3 rotates and penetrates into the screening box 1 and is fixed to one end of the rotating rod 6;

[0026] By setting the driving motor 3, the driving motor 3 is started, and the output shaft of the driving motor 3 drives the receiving plate 7 and the sliding plate 8 to rotate toward the screening plate 11 as a whole through the rotating rod 6.

[0027] Further, refer to Figure 4 As shown, a connecting column 14 is fixed on the inner wall of the sliding plate 8, a sliding groove adapted to the connecting column 14 is opened on the outer wall of the receiving plate 7, and a telescopic spring 13 is fixed between the connecting column 14 and the inner wall of one side of the sliding groove;

[0028] Through the arrangement of the telescopic spring 13 and the connecting column 14, when the receiving plate 7 and the sliding plate 8 rotate as a whole to contact with the screening plate 11, the sliding plate 8 will squeeze the telescopic spring 13 through the connecting column 14, so that the sliding plate 8 can slide relatively along the direction of the receiving plate 7, thereby preventing the screening plate 11 from causing movement obstruction to the overall rotation process of the receiving plate 7 and the sliding plate 8.

[0029] Further, refer to Figure 2 As shown, a plurality of deceleration balls 9 are fixedly embedded on the surfaces of the receiving plate 7 and the sliding plate 8;

[0030] By setting the deceleration ball 9, when the wear-resistant steel ball rolls along the surface of the receiving plate 7 and the sliding plate 8 toward the screening plate 11, the deceleration ball 9 can decelerate the rolling process of the wear-resistant steel ball, and can further limit the rolling speed of the wear-resistant steel ball to prevent the wear-resistant steel ball from rolling too fast and impacting the screening plate 11.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for producing chromium-manganese-tungsten wear-resistant steel balls, comprising a screening box (1) with a cavity inside, and a material taking door (4) hinged to the screening box (1), the top surface of the screening box (1) is provided with a feed inlet (2), a screening plate (11) is installed between the inner walls on both sides of the screening box (1), the screening plate (11) is provided with a plurality of material dropping holes (10), and a vibrator is installed on the bottom surface of the screening plate (11), characterized in that: A buffer-type material guiding mechanism is also provided above the screening plate (11); The buffer-type material guiding mechanism comprises a receiving plate (7) obliquely arranged above one side of the screening plate (11); a rotating rod (6) is fixedly passed through the inner wall at one end of the receiving plate (7); the rotating rod (6) is laterally rotatably arranged between the inner walls at both sides of the screening box (1); a sliding plate (8) is slidably arranged on the outer wall at the other end of the receiving plate (7); the discharge end of the feed port (2) corresponds to the interior of the receiving plate (7); the openings of the receiving plate (7) and the sliding plate (8) are both oriented toward the material taking door (4).

2. The screening equipment for producing chromium-manganese-tungsten wear-resistant steel balls according to claim 1 is characterized in that: A driving motor (3) is mounted on one end surface of the screening box (1); an output shaft of the driving motor (3) rotates and penetrates into the screening box (1) and is fixed to one end of the rotating rod (6).

3. The screening equipment for producing chromium-manganese-tungsten wear-resistant steel balls according to claim 1 is characterized in that: A connecting column (14) is fixed on the inner wall of the sliding plate (8), a sliding groove matched with the connecting column (14) is opened on the outer wall of the receiving plate (7), and a telescopic spring (13) is fixed between the connecting column (14) and the inner wall of one side of the sliding groove.

4. The screening equipment for producing chromium-manganese-tungsten wear-resistant steel balls according to claim 1 is characterized in that: A plurality of deceleration balls (9) are fixedly embedded on the surfaces of the material receiving plate (7) and the sliding plate (8).

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