Wear-resistant steel ball screening device

Abstract

The utility model belongs to the technical field of steel ball screening, and discloses a wear-resistant steel ball screening device which comprises a bearing structure, a bottom frame and a screening frame, and is characterized in that the bearing structure comprises a base and a driving structure, the base is arranged on a support, a bearing is arranged on the side wall of the base, a vertical plate is arranged at the top of the base, and a top plate is arranged at the top of the vertical plate; the driving structure is arranged between the bases, the bottom frame is arranged between the bases, the bottom frame is movably connected with the driving structure, the multiple screening frames are movably connected in an up-down stacked mode, and the screening frame on the lowest layer is movably connected with the bottom frame. According to the wear-resistant steel ball screening frame, the multiple independently-arranged check blocks are arranged at the bottom in the fixing groove, when the auxiliary wheels roll back and forth in the fixing groove and roll to the check blocks, the purpose of jolting the bottom frame is achieved, wear-resistant steel balls can roll back and forth in the screening frame and the bottom frame conveniently, and the wear-resistant steel balls are fully screened.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ball production, in particular to a screening device for wear-resistant steel balls. Background Art

[0002] Steel balls are important basic components. In particular, precision industrial steel balls play a huge role in the development of the national economy. For example, bearing steel balls are important basic components of industry. Alloy steel balls are a spherical ferroalloy wear-resistant body formed by adding carbon, chromium, manganese, molybdenum and other main metal elements and through forging, spinning, rolling and casting. It is the most important component of today's grinding industry, such as balls for mines and balls for cement. Steel balls are commonly used in precision industries. Due to high requirements for their dimensions and assembly, sorting machinery is needed to screen them after the steel balls are processed.

[0003] The patent with the publication (announcement) number CN110142197A discloses an automatic sorting device for wear-resistant steel balls, including a main body frame. An inlet hopper is fixedly installed on the main body frame. Vertical plates and a rotating plate are respectively arranged on both sides of the bottom opening of the inlet hopper. The vertical plate is fixedly arranged at the bottom of the inlet hopper. One end of the rotating plate is hinged to the bottom of the inlet hopper, and a telescopic mechanism for driving its rotation is arranged on the bottom of the rotating plate. A screening plate capable of swinging left and right is arranged at the bottom of the outlet of the inlet hopper. A sieve hole A and a sieve hole B are respectively arranged at the left and right ends of the screening plate. By setting the screening plate with reciprocating motion, the screening speed of the steel balls is accelerated.

[0004] During the use of the above device, if there are steel balls with a ball diameter larger than the sieve hole A and the sieve hole B, such steel balls will always remain above the screening plate and cannot roll the wear-resistant steel balls. At the same time, the feeding of the steel ball screening is also carried out from above the screening plate. Therefore, the steel balls that do not meet the specifications and gradually accumulate above the screening plate will always affect the screening efficiency of the device. And as the working time of the device increases, the degree of affecting the efficiency will also be greater, which is inconvenient for fully screening the wear-resistant steel balls and results in poor screening effect of the wear-resistant steel balls.

[0005] Based on this, the applicant proposes a screening device for wear-resistant steel balls to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to overcome the problems of inconvenient rolling and poor screening effect of wear-resistant steel balls during the existing screening process of wear-resistant steel balls, and provide a screening device for wear-resistant steel balls with reasonable structural design, capable of rolling wear-resistant steel balls, capable of screening wear-resistant steel balls multiple times, and having good screening effect.

[0007] The technical solution adopted for the technical problems solved by the utility model is as follows:

[0008] Wear-resistant steel ball screening device, including a bearing structure, a bottom frame, and a screening frame. The bearing structure includes a base and a driving structure. The base is arranged on a bracket, a bearing is arranged on the side wall of the base, a vertical plate is arranged on the top of the base, and a top plate is arranged on the top of the vertical plate. The driving structure is arranged between the bases. The bottom frame is arranged between the bases and is movably connected to the driving structure. A plurality of screening frames are provided, and the plurality of screening frames are stacked up and down movably and the lowermost screening frame is movably connected to the bottom frame. The wear-resistant steel balls to be screened are poured into the uppermost screening frame. The sieve holes of the screening frame screen the wear-resistant steel balls. The screened wear-resistant steel balls fall into the adjacent lower screening frame. After being screened by a plurality of screening frames, the wear-resistant steel balls in the lowermost layer fall into the bottom frame through the sieve holes to complete the screening of the wear-resistant steel balls. The driving structure drives the bottom frame to move back and forth between the bases. The bottom frame drives the plurality of screening frames to move back and forth, causing the wear-resistant steel balls in the screening frames to roll back and forth to screen the steel balls in the screening frames.

[0009] Preferably, a fixing groove is arranged on the outer wall of the base. Connecting rods are arranged on the outer walls of the opposite sides of the bottom frame. A positioning column is arranged on the top of the bottom frame and a baffle is arranged on the bottom of the bottom frame. Auxiliary wheels are arranged on the connecting rods. The auxiliary wheels are placed in the fixing groove. The positioning column is connected to the screening frame. The baffle is movably connected to the driving structure. The driving structure pushes the baffle at the bottom of the bottom frame to move. The auxiliary wheels on the connecting rods on both sides of the bottom frame roll in the fixing groove, causing the bottom frame to move back and forth between the bases. The bottom frame drives the plurality of screening frames to move back and forth, causing the wear-resistant steel balls to roll back and forth in the screening frames to fully screen the wear-resistant steel balls, improving the screening efficiency and screening effect of the wear-resistant steel balls.

[0010] Preferably, a plurality of independently arranged stoppers are arranged at the bottom of the fixing groove. When the auxiliary wheels roll back and forth in the fixing groove and the auxiliary wheels roll onto the stoppers, the bottom frame will be jolted, resulting in a situation where one side of the bottom frame is high and the other side is low, driving the screening frame to be in an inclined state, facilitating the wear-resistant steel balls to roll back and forth in the screening frame and the bottom frame to fully screen the wear-resistant steel balls.

[0011] Preferably, the driving structure includes a driving motor, a rotating roller, and a conveyor belt. The driving motor is arranged on the outer wall of the base and is set as a servo motor. Connecting shafts are arranged at both ends of the rotating roller. The connecting shafts are inserted into bearings, and one of the connecting shafts is connected to the output shaft of the driving motor. The conveyor belt is arranged between the rotating rollers, and a push plate for pushing the baffle is arranged on the conveyor belt. The driving motor drives the rotating roller to move back and forth. The rotating roller drives the conveyor belt and the push plate to rotate back and forth. The push plate pushes the baffle on the bottom frame to move, providing power for the movement of the bottom frame between the bases. The moving bottom frame drives the screening frame to move, causing the steel balls in the screening frame to roll back and forth, fully screening the wear-resistant steel balls and improving the screening effect of the wear-resistant steel balls.

[0012] Preferably, connecting cylinders and sieve holes are arranged at the bottom of the screening frame, positioning columns are arranged at the top of the screening frame, and the sieve holes penetrate through the bottom of the screening frame. The mesh number of the screening frame increases sequentially from top to bottom. The upper and lower adjacent screening frames are connected through the connecting cylinders and positioning columns. The connecting cylinder on the lowermost screening frame is sleeved on the positioning column of the bottom frame. Connecting the upper and lower adjacent screening frames through the connecting cylinders and positioning columns facilitates the assembly or disassembly of the screening frames, which can not only improve the assembly efficiency of the screening device but also facilitate the removal of the screened wear-resistant steel balls from the corresponding screening frames for classification and collection. Multiple screening frames can fully screen the wear-resistant steel balls and improve the screening quality of the wear-resistant steel balls.

[0013] Preferably, partition bars are arranged at the bottom of the screening frame. The partition bars can bounce up the wear-resistant steel balls rolling back and forth in the screening frame, fully screening the wear-resistant steel balls.

[0014] Preferably, springs are arranged between the positioning columns and the inner top brackets of the connecting cylinders. The springs enable the screening frame to have a buffering performance between the bottom frame and between the screening frames. When the auxiliary wheel rolls down from the block, the bottom frame is jolted. The springs can make the screening frame vibrate up and down, causing the wear-resistant steel balls in the screening frame to bounce up, fully screening the wear-resistant steel balls. On the other hand, the springs prevent the situation where the connecting cylinder drops from the positioning column due to excessive jolting, improving the stability of the wear-resistant steel ball screening process.

[0015] Preferably, the wear-resistant steel ball screening device further includes a pushing structure. Fixed plates are arranged on the outer walls of the opposite sides of the screening frame, and the fixed plates are movably connected to the pushing structure. The pushing structure can push the fixed plates on the screening frame to rise, making the screening frame tilt, facilitating the rolling of the wear-resistant steel balls in the screening frame, fully screening the wear-resistant steel balls, and improving the screening efficiency and screening effect of the wear-resistant steel balls.

[0016] Preferably, the pushing structure includes a rotating motor and a fixed rod. The rotating motor is arranged on the top plate, and a rotating shaft is arranged on the rotating motor. The fixed rods and the fixing plates on the screening box are arranged in a one-to-one correspondence. The fixed rod is arranged in an L-shaped structure. One end of the fixed rod is connected to the rotating shaft, and a guide plate for pushing up the fixing plate is arranged at the other end. The rotating motor drives the rotating shaft and the fixed rod mounted on the rotating shaft to rotate. The guide plate on the fixed rod periodically pushes up the fixing plate on the screening box, so that the screening box can be in an inclined state, facilitating the abrasion-resistant steel balls to roll back and forth in the screening box, and fully screening the abrasion-resistant steel balls. The screening box moves back and forth under the action of the driving structure along with the bottom frame. The guide plate pushes the fixing plates at different positions, making the screening box inclined at different angles, and fully rolling and screening the abrasion-resistant steel balls in the screening box.

[0017] Preferably, the guide plate is arranged in an arc structure. The arc-shaped guide plate can slowly push up and drop the fixing plate, avoiding the direct rising and falling of the fixing plate, improving the stability during the process of pushing the fixing plate, and thus improving the stability during the screening process of the abrasion-resistant steel balls.

[0018] Beneficial effects:

[0019] 1. Pour the abrasion-resistant steel balls to be screened into the uppermost screening box. The sieve holes of the screening box screen the abrasion-resistant steel balls. The screened abrasion-resistant steel balls fall into the adjacent lower screening box. After being screened by multiple screening boxes, the abrasion-resistant steel balls in the lowermost layer fall into the bottom frame through the sieve holes, completing the screening of the abrasion-resistant steel balls. The driving structure drives the bottom frame to move back and forth between the bases, and the bottom frame drives multiple screening boxes to move back and forth, making the abrasion-resistant steel balls in the screening box roll back and forth, and screening the steel balls in the screening box.

[0020] 2. A plurality of independently arranged stoppers are provided at the bottom of the fixed groove. When the auxiliary wheel rolls back and forth in the fixed groove and rolls onto the stopper, the purpose of jolting the bottom frame is achieved, and a situation where one side of the bottom frame is high and the other side is low will occur, driving the screening box to be in an inclined state, facilitating the abrasion-resistant steel balls to roll back and forth in the screening box and the bottom frame, and fully screening the abrasion-resistant steel balls.

[0021] 3. Springs are provided between the positioning column and the top bracket inside the connecting cylinder. Through the springs, the screening box and the bottom frame and between the screening boxes have buffering performance. When the auxiliary wheel rolls off the stopper, the bottom frame is jolted, and the springs can make the screening box vibrate up and down, making the abrasion-resistant steel balls in the screening box bounce up, and fully screening the abrasion-resistant steel balls. On the other hand, the situation that the connecting cylinder drops from the positioning column due to excessive jolting is prevented through the action of the springs, improving the stability of the abrasion-resistant steel ball screening process. Description of the drawings

[0022] Figure 1It is a schematic structural view of the utility model.

[0023] Figure 2 It is a left view of the utility model.

[0024] Figure 3 It is a partial schematic structural view of the utility model, showing the connection structure between the base and the rotating roller.

[0025] Figure 4 It is a partial schematic structural view of the utility model, showing the connection structure between the bottom frame and the connecting rod.

[0026] Figure 5 It is a partial schematic structural view of the utility model, showing the connection structure between the screening frame and the screening holes.

[0027] Figure 6 It is a partial schematic structural view of the utility model, showing the connection structure between the positioning column and the connecting cylinder.

[0028] Figure 7 It is a partial schematic structural view of the utility model, showing the connection structure between the fixing rod and the guide plate.

[0029] Figure 8 It is another schematic structural view of the utility model.

[0030] In the figure: 1. Base, 2. Bottom frame, 3. Screening frame, 4. Bracket, 5. Fixed groove, 6. Bearing, 7. Vertical plate, 8. Top plate, 9. Stopper, 10. Driving motor, 11. Rotating roller, 12. Transmission belt, 13. Connecting shaft, 14. Pushing plate, 15. Connecting rod, 16. Baffle, 17. Positioning column, 18. Auxiliary wheel, 19. Connecting cylinder, 20. Fixed plate, 21. Screening holes, 22. Partition strip, 23. Spring, 24. Rotating motor, 25. Fixing rod, 26. Rotating shaft, 27. Guide plate, 28. Diversion bin. Specific embodiments

[0031] The present utility model will be described in more detail below with reference to the accompanying drawings.

[0032] Embodiment 1:

[0033] As shown in the attached Figures 1-6 figure, a wear-resistant steel ball screening device includes a bearing structure, a bottom frame 2, and a screening frame 3. The bearing structure includes a base 1 and a driving structure. The base 1 is arranged on the bracket 4. A bearing 6 is arranged on the side wall of the base 1. A vertical plate 7 is arranged on the top of the base 1. A top plate 8 is arranged on the top of the vertical plate 7. The driving structure is arranged between the base 1 and the base 1. The bottom frame 2 is arranged between the base 1 and the base 1, and the bottom frame 2 is movably connected to the driving structure. The screening frame 3 is provided with a plurality of them, and the plurality of screening frames 3 are movably stacked up and down, and the lowermost screening frame 3 is movably connected to the bottom frame 2.

[0034] Among them, a fixing groove 5 is provided on the outer wall of the base 1, connecting rods 15 are provided on the outer walls of opposite sides of the bottom frame 2, positioning columns 17 are provided on the top of the bottom frame 2, a baffle 16 is provided on the bottom of the bottom frame 2, auxiliary wheels 18 are provided on the connecting rods 15, the auxiliary wheels 18 are placed in the fixing groove 5, the positioning columns 17 are connected to the screening frame 3, and the baffle 16 is movably connected to the driving structure.

[0035] Among them, the driving structure includes a driving motor 10, a rotating roller 11, and a transmission belt 12. The driving motor 10 is provided on the outer wall of the base 1, and the driving motor 10 is set as a servo motor. Connecting shafts 13 are provided at both ends of the rotating roller 11, the connecting shafts 13 are inserted into the bearings 6, and one of the connecting shafts 13 is connected to the output shaft of the driving motor 10. The transmission belt 12 is provided between the rotating rollers 11, and a push plate 14 for pushing the baffle 16 is provided on the transmission belt 12.

[0036] Among them, a connecting cylinder 19 and sieve holes 21 are provided at the bottom of the screening frame 3, positioning columns 17 are provided on the top of the screening frame 3, the sieve holes 21 penetrate through the bottom of the screening frame 3, and the mesh number of the screening frame 3 increases sequentially from top to bottom. The adjacent upper and lower layers of screening frames 3 are connected through the connecting cylinder 19 and the positioning columns 17, and the connecting cylinder 19 on the bottommost screening frame 3 is sleeved on the positioning column 17 of the bottom frame 2. A spring 23 is provided between the positioning column 17 and the inner top bracket 4 of the connecting cylinder 19, and a partition strip 22 is provided at the bottom of the screening frame 3.

[0037] Among them, the wear-resistant steel ball screening device further includes a pushing structure. Fixed plates 20 are provided on the outer walls of opposite sides of the screening frame 3, and the fixed plates 20 are movably connected to the pushing structure.

[0038] Among them, the pushing structure includes a rotating motor 24 and a fixed rod 25. The rotating motor 24 is provided on the top plate 8, a rotating shaft 26 is provided on the rotating motor 24, the fixed rods 25 and the fixed plates 20 on the screening frame 3 are set in a one-to-one corresponding structure, the fixed rods 25 are set in an L-shaped structure, one end of the fixed rod 25 is connected to the rotating shaft 26, and a guide plate 27 for pushing up the fixed plate 20 is provided at the other end. The guide plate 27 is set in an arc-shaped structure.

[0039] Embodiment Two:

[0040] On the basis of Embodiment One, the following improvements are made, as shown in the attached Figures 7-8 As shown: A diversion bin 28 with a conical structure is provided at the bottom of the screening frame 3. Through the diversion bin 28, it is convenient to divert the wear-resistant steel balls screened by the upper-layer screening frame 3 into the adjacent lower-layer screening frame 3 or the bottom frame 2, avoiding the wear-resistant steel balls from falling outside the screening frame 3 or the bottom frame 2, and reducing the waste of wear-resistant steel balls.

[0041] Working principle: According to the sieve layer classification requirements of wear-resistant steel balls, determine the corresponding number of screening frames 3. Connect the upper and lower adjacent screening frames 3 through connecting cylinders 19 and positioning columns 17. Sleeve the connecting cylinder 19 on the positioning column 17 of the bottom frame 2. A spring 23 is arranged between the positioning column 17 and the inner top of the connecting cylinder 19. Select the same number of guide plates 27 according to the number of screening frames 3, and install the fixing rods 25 connected to the guide plates 27 on the rotating shaft 26, so that the guide plates 27 can push the screening frames 3 upward. Pour the wear-resistant steel balls to be screened into the uppermost screening frame 3. Start the driving motor 10. The driving motor 10 drives the rotating roller 11 to move back and forth. The rotating roller 11 drives the conveyor belt 12 and the pushing plate 14 to rotate back and forth. The pushing plate 14 pushes the baffle 16 on the bottom frame 2 to move, providing power for the movement of the bottom frame 2 between the base 1 and the base 1. The moving bottom frame 2 drives the screening frame 3 to move, causing the wear-resistant steel balls in the screening frame 3 to roll back and forth. Start the rotating motor 24. The rotating motor 24 drives the rotating shaft 26 and the fixing rods 25 installed on the rotating shaft 26 to rotate. The guide plates 2 on the fixing rods 25 periodically push the fixing plates 20 on the screening frame 3 to rise, enabling the screening frame 3 to be in an inclined state, facilitating the back-and-forth rolling of the wear-resistant steel balls in the screening frame 3 and fully screening the wear-resistant steel balls. The screening frame 3 moves back and forth under the action of the driving structure with the bottom frame 2. The guide plates 27 push the fixing plates 20 at different positions, making the screening frame 3 present different angles of inclination and fully rolling and screening the wear-resistant steel balls in the screening frame 3. After the screening of the wear-resistant steel balls is completed, the pushing on the conveyor belt pushes the baffle 16 to move, driving the bottom frame 2 to drive the screening frame 3 out from under the top plate 8. Remove the screening frame 3 and collect the screened wear-resistant steel balls in the screening frame 3 by classification. Multiple screening frames 3 can fully screen the wear-resistant steel balls and improve the screening quality of the wear-resistant steel balls.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0043] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. For the connection relationships of the various components involved in the present utility model, based on the prior art, corresponding connection relationships can be adopted by selecting different materials. For example, welding connection can be adopted by selecting technical materials, and connection members can be used for stone materials, etc.

[0044] The parts not involved in the present utility model are the same as the prior art or can be implemented by the prior art.

Claims

1. Wear-resistant steel ball screening device, including a bearing structure, a bottom frame, and a screening frame, characterized in that: The described bearing structure includes a base and a driving structure. The base is arranged on the bracket. A bearing is provided on the side wall of the base, a vertical plate is provided on the top of the base, and a top plate is provided on the top of the vertical plate. The driving structure is arranged between the bases. The bottom frame is arranged between the bases and is movably connected to the driving structure. A plurality of screening frames are provided, and the plurality of screening frames are movably stacked up and down and the lowermost screening frame is movably connected to the bottom frame.

2. The wear-resistant steel ball screening device according to claim 1, characterized in that: Fixing grooves are provided on the outer wall of the base. Connecting rods are provided on the outer walls of the opposite sides of the bottom frame. A positioning post is provided on the top of the bottom frame and a baffle is provided on the bottom of the bottom frame. Auxiliary wheels are provided on the connecting rods, and the auxiliary wheels are placed in the fixing grooves. The positioning post is connected to the screening frame, and the baffle is movably connected to the driving structure.

3. The wear-resistant steel ball screening device according to claim 2, characterized in that: A plurality of independently arranged stoppers are provided at the inner bottom of the fixing groove.

4. The wear-resistant steel ball screening device according to claim 2, wherein: The driving structure includes a driving motor, a rotating roller, and a transmission belt. The driving motor is arranged on the outer wall of the base and the driving motor is set as a servo motor. Connecting shafts are provided at both ends of the rotating roller. The connecting shafts are inserted into the bearings, and one of the connecting shafts is connected to the output shaft of the driving motor. The transmission belt is arranged between the rotating rollers, and a push plate for pushing the baffle is provided on the transmission belt.

5. The wear-resistant steel ball screening device according to claim 2, characterized in that: Connecting cylinders and sieve holes are provided at the bottom of the screening frame. A positioning post is provided on the top of the screening frame, and the sieve holes penetrate through the bottom of the screening frame. A plurality of screening frames are provided, and the mesh number of the screening frames increases sequentially from top to bottom. The upper and lower adjacent two layers of screening frames are connected through the connecting cylinders and the positioning posts, and the connecting cylinder on the lowermost screening frame is sleeved on the positioning post of the bottom frame.

6. The wear-resistant steel ball screening device according to claim 5, characterized in that: Partition bars are provided at the bottom of the screening frame.

7. The wear-resistant steel ball screening device according to claim 5, characterized in that: Springs are provided between the positioning posts and the inner top brackets of the connecting cylinders.

8. The wear-resistant steel ball screening device according to claim 1, characterized in that: The wear-resistant steel ball screening device further includes a pushing structure. Fixing plates are provided on the outer walls of the opposite sides of the screening frame, and the fixing plates are movably connected to the pushing structure.

9. The wear-resistant steel ball screening device according to claim 8, characterized in that: The pushing structure includes a rotating motor and a fixing rod. The rotating motor is arranged on the top plate. A rotating shaft is provided on the rotating motor. The fixing rods and the fixing plates on the screening frame are set in a one-to-one corresponding structure. The fixing rods are set in an L-shaped structure. One end of the fixing rod is connected to the rotating shaft, and a guide plate for pushing up the fixing plate is provided at the other end.

10. The wear-resistant steel ball screening device according to claim 9, characterized in that: The guide plate is set in an arc-shaped structure.

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