Stepped sorting and screening device for bearing steel balls

Abstract

The utility model relates to the technical field of sorting and screening devices, and discloses a bearing steel ball stepped sorting and screening device which comprises a cabinet body, a fixing plate is fixedly connected to the rear side of the outer wall of the cabinet body, a fixing long rod is fixedly connected to the left side of the outer wall of the fixing plate, and a limiting ring is fixedly connected to the left side of the outer wall of the fixing long rod. A sorting bed is arranged at the top of the cabinet body, a movable round rod is fixedly connected to the rear side of the outer wall of the sorting bed, the movable round rod is slidably connected to the interior of a limiting ring, and a rotating shaft is fixedly connected to the left side of the outer wall of the movable round rod. According to the bearing steel ball stepped sorting and screening device, the sorting bed shakes left and right by starting the motor, so that bearing steel balls with different diameters are separated, and the problems that when a bearing steel ball stepped sorting and screening device sorts the bearing steel balls in a vibration mode, the surfaces of the steel balls are damaged, the overall quality of the bearing steel balls is affected, and the performance and the use value of the bearing steel balls are reduced are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of sorting and screening devices, and in particular to a stepped sorting and screening device for bearing steel balls. Background Technology

[0002] Bearing steel balls are key components in bearings. Made of high-carbon chromium bearing steel, they possess extremely high hardness, excellent wear resistance, and fatigue resistance. Their surfaces are precision-machined, resulting in extremely high dimensional accuracy and minimal roundness error, ensuring smooth rolling within the bearing. Bearing steel balls play a crucial role in bearing loads and reducing friction, enabling high-precision rotational motion. They are widely used in the automotive, machine tool, motor, and aerospace industries, and are indispensable basic components in modern industry.

[0003] The stepped sorting and screening device for bearing steel balls is an automated device specifically designed for bearing steel balls. Based on the inclined slide of the stepped structure, it utilizes the principle that the difference in the diameter of the steel balls causes different rolling speeds and passing positions to drop qualified steel balls into the corresponding collection tanks. It is widely used in the bearing manufacturing industry. However, the speed and rolling trajectory of the steel balls rolling under the action of gravity are difficult to control precisely. The steel balls may skip some smaller screen holes due to excessive rolling speed, resulting in sorting errors. Existing technology uses the installation of vibration devices to help the steel balls better adapt to the shape and position of the screen holes, reducing the situation where steel balls cannot pass through the screen holes smoothly due to static friction. Furthermore, excessive vibration can affect the quality of the steel balls themselves, thereby reducing their performance and usability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a stepped sorting and screening device for bearing steel balls, which aims to improve the problem that the surface of the steel balls is damaged when the stepped sorting and screening device for bearing steel balls uses vibration to sort the bearing steel balls in the prior art, thereby affecting the overall quality of the bearing steel balls and reducing their performance and use value.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a stepped sorting and screening device for bearing steel balls, comprising a cabinet, a fixed plate fixedly connected to the rear side of the outer wall of the cabinet, a fixed long rod fixedly connected to the left side of the outer wall of the fixed plate, a limit ring fixedly connected to the left side of the outer wall of the fixed long rod, a sorting bed provided on the top of the cabinet, a movable round rod fixedly connected to the rear side of the outer wall of the sorting bed, a movable round rod slidably connected inside the limit ring, a rotating shaft fixedly connected to the left side of the outer wall of the movable round rod, a transmission plate rotatably connected to the left end of the outer wall of the rotating shaft, a motor provided on the rear side of the outer wall of the cabinet, a rotating rod fixedly connected to the output end of the motor, the left end of the outer wall of the rotating rod fixedly connected to the other end of the outer wall of the transmission plate, a feeding bin fixedly connected to the right side of the top of the cabinet, and a moving device fixedly connected to the left end of the top of the outer wall of the cabinet.

[0006] As a further description of the above technical solution:

[0007] The moving device includes a grooved rod, which is installed on the top left end of the outer wall of the cabinet. A drive shaft is fixedly connected to the middle left end of the grooved rod. A gear is fixedly connected to the outer end of the drive shaft. A turntable is fixedly connected to the front end of the outer wall of the drive shaft. A rack is slidably connected inside the grooved rod. The right side of the outer wall of the gear meshes with the rack. A long plate is fixedly connected to the top of the rack. Pull rods are fixedly connected to the front and rear ends of the bottom of the long plate. A cover plate is fixedly connected to the bottom of the pull rod. A fixed short shaft is slidably connected to the middle of the grooved rod.

[0008] As a further description of the above technical solution:

[0009] Multiple receiving boxes are equidistantly slidably connected in the middle of the cabinet, and spherical pull blocks are fixedly connected to the front side of the outer wall of each receiving box.

[0010] As a further description of the above technical solution:

[0011] The cabinet is fixedly connected to four corners at the bottom, and foot pads are fixedly connected to the bottom of each of the four corners.

[0012] As a further description of the above technical solution:

[0013] The cabinet has equidistant sliding grooves on both the front and back sides of its outer wall, and sliding rods are slidably connected inside the sliding grooves.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the feed hopper is threaded with multiple screws at equal intervals, and warning signs are threaded onto the outer wall of each screw.

[0016] As a further description of the above technical solution:

[0017] A side plate is fixedly connected to the upper right side of the outer wall of the feeding hopper, and a hook is fixedly connected to the bottom of the side plate.

[0018] As a further description of the above technical solution:

[0019] The motor is fixedly connected to a support frame at its bottom, and a base plate is fixedly connected to the bottom of the support frame.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the motor output end is welded to the rotating rod, and the other end of the rotating rod is connected to the transmission plate. After the motor is turned on, the rotating rod rotates. The two rotating rods are connected by a rotating shaft, and their other ends are also connected to the moving round rod through a rotating shaft. The other end of the moving round rod is connected to the sorting bed and fitted inside the limiting ring. It can only move left and right due to the limitation ring, thereby driving the sorting bed to move left and right. A long rod is welded to the right side of the limiting ring and fixed to the fixing plate. The fixing plate is welded to the rear side of the cabinet to stabilize the limiting ring. This solves the problem that when the bearing steel ball stepped sorting and screening device uses vibration to sort bearing steel balls, the surface of the steel balls is damaged, which affects the overall quality of the bearing steel balls and reduces their performance and use value.

[0022] 2. In this utility model, when the turntable rotates, the gear welded to it via the transmission shaft rotates synchronously, driving the rack embedded in the grooved rod, which can only move in a straight line up and down, to move. This causes the long plate to move up and down. Two tie rods are hinged to the bottom of the long plate, and a cover plate is fixed to the bottom of the tie rods. Therefore, the movement of the rack will synchronously drive the cover plate to move up and down, thereby covering the sorting opening when not necessary. This achieves the ability to cover the sorting opening when not necessary, reducing the wear on the surface of the bearing steel balls and thus meeting different screening requirements. Attached Figure Description

[0023] Figure 1 This is a front view of the stepped sorting and screening device for bearing steel balls proposed in this utility model;

[0024] Figure 2 This is a perspective view of the stepped sorting and screening device for bearing steel balls proposed in this utility model;

[0025] Figure 3 This is a side view of the stepped sorting and screening device for bearing steel balls proposed in this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the bearing steel ball stepped sorting and screening device proposed in this utility model;

[0027] Figure 5 This is a diagram illustrating the mobile device of the stepped sorting and screening device for bearing steel balls proposed in this utility model.

[0028] Legend:

[0029] 1. Cabinet; 2. Moving device; 201. Groove rod; 202. Pull rod; 203. Long plate; 204. Rack; 205. Gear; 206. Shelf; 207. Drive shaft; 208. Turntable; 209. Fixed short shaft; 3. Sorting bed; 4. Feed bin; 5. Screw; 6. Warning sign; 7. Side plate; 8. Hook; 9. Load-bearing column; 10. Foot pad; 11. Receiving box; 12. Spherical pull block; 13. Slide rod; 14. Slide groove; 15. Motor; 16. Support frame; 17. Base plate; 18. Fixed plate; 19. Fixed long rod; 20. Limit ring; 21. Rotating rod; 22. Rotating shaft; 23. Transmission plate; 24. Moving round rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4 This utility model provides an embodiment of a stepped sorting and screening device for bearing steel balls, comprising a cabinet 1. A fixing plate 18 is fixedly connected to the rear side of the outer wall of the cabinet 1. A fixing long rod 19 is fixedly connected to the left side of the outer wall of the fixing plate 18. A limit ring 20 is fixedly connected to the left side of the outer wall of the fixing long rod 19. A sorting bed 3 is provided on the top of the cabinet 1. A movable round rod 24 is fixedly connected to the rear side of the outer wall of the sorting bed 3. The movable round rod 24 is slidably connected inside the limit ring 20. A rotating shaft 22 is fixedly connected to the left side of the outer wall of the movable round rod 24. A transmission plate 23 is rotatably connected to the left end of the outer wall of the rotating shaft 22. An electric... The motor 15 has a rotating rod 21 fixedly connected to its output end. The left end of the outer wall of the rotating rod 21 is fixedly connected to the other end of the outer wall of the transmission plate 23. A feeding bin 4 is fixedly connected to the top right side of the cabinet 1. A moving device 2 is fixedly connected to the top left end of the outer wall of the cabinet 1. Multiple receiving boxes 11 are equidistantly slidably connected in the middle of the cabinet 1. A spherical pull block 12 is fixedly connected to the front side of the outer wall of the receiving box 11 to facilitate timely collection of sorted bearing steel balls during screening. A load-bearing column 9 is fixedly connected to each of the four corners at the bottom of the cabinet 1. A foot pad 10 is fixedly connected to the bottom of the load-bearing column 9 to buffer the impact force of the device on the ground.

[0032] Specifically, because the output end of motor 15 is welded to rotating rod 21, and the other end of rotating rod 21 is welded to transmission plate 23, rotating rod 21 will rotate synchronously when motor 15 is turned on. The two rotating rods 21 are connected by a rotating shaft 22. The other end of rotating rod 21 is connected to moving round rod 24 through rotating shaft 22 and can rotate. The other end of moving round rod 24 is connected to sorting bed 3, and its outer side is fitted inside limiting ring 20. Limiting ring 20 restricts it, so that when moving round rod 24 is driven by motor 15, it can only move left and right, thereby causing sorting bed 3 to move left and right. This allows bearing steel balls to move left and right while the sorting bed 3 is falling up and down, slowing down the movement speed of the steel balls and making the steel balls pass through the corresponding size sorting opening more efficiently. Long rod 19 is welded to the right side of limiting ring 20. Its right side is fixed to the fixing plate 18, which is welded to the rear side of the cabinet 1, and serves as a stabilizing limit ring 20. This solves the problem that when the bearing steel ball step sorting and screening device uses vibration to sort bearing steel balls, the surface of the steel balls is damaged, which affects the overall quality of the bearing steel balls and reduces their performance and use value. A sliding receiving box 11 is set in the middle of the cabinet 1, and a spherical pull block 12 is embedded in its front side. By gently pulling the spherical pull block 12, the receiving box 11 can be pulled out at any time to collect the sorted qualified steel balls in time, which effectively improves the continuity and convenience of sorting operations. The four corners of the bottom of the cabinet 1 are vertically fixed with load-bearing columns 9, and the lower end of the columns is tightly connected to foot pads 10. These foot pads 10 are made of elastic cushioning material, which can effectively absorb the vibration generated during the operation of the device and disperse the pressure on the ground.

[0033] Reference Figure 1 , Figure 2 and Figure 5 The moving device 2 includes a grooved rod 201, which is installed on the top left end of the outer wall of the cabinet 1. A drive shaft 207 is fixedly connected to the middle left end of the grooved rod 201. A gear 205 is fixedly connected to the outer end of the drive shaft 207. A turntable 208 is fixedly connected to the front end of the outer wall of the drive shaft 207. A rack 204 is slidably connected inside the grooved rod 201. The right side of the outer wall of the gear 205 meshes with the rack 204. A long plate 203 is fixedly connected to the top of the rack 204. Pull rods 202 are fixedly connected to both the front and rear ends of the bottom. A cover plate 206 is fixedly connected to the bottom of the pull rods 202. A fixed short shaft 209 is slidably connected to the middle of the grooved rod 201. Slide grooves 14 are equally spaced on both the front and rear sides of the outer wall of the cabinet 1. A slide rod 13 is slidably connected inside the slide groove 14, thereby reducing the friction between the sorting bed 3 and the cabinet 1 and increasing the service life of the device. Multiple screws 5 are threadedly connected at equal intervals on the front side of the outer wall of the feeding bin 4. A warning sign 6 is threadedly connected to the outer wall of the screws 5, which serves as a warning when the device is in operation.

[0034] Specifically, the output end of motor 15 is welded to rotating rod 21, and the other end of rotating rod 21 is welded to transmission plate 23. Therefore, when motor 15 is turned on, transmission plate 23 will rotate synchronously. The two transmission plates 23 are connected by a rotating shaft 22. The other end of transmission plate 23 is connected to moving rod 24 through rotating shaft 22 and can rotate. The other end of moving rod 24 is connected to sorting bed 3, and its outer side is fitted inside limiting ring 20. Limiting ring 20 restricts it, so that when moving rod 24 is driven by motor 15, it can only move left and right, thereby making sorting bed 3 move left and right. This allows bearing steel balls to move left and right while the sorting bed 3 is falling up and down, slowing down the movement speed of the steel balls and making the steel balls pass through the corresponding size sorting opening more effectively. A fixed long rod 19 is welded to the right side of limiting ring 20, and its right side is fixed to fixed plate 18. Fixed plate 18 is welded to the rear side of cabinet 1. The stabilizing limit ring 20 solves the problem that when the bearing steel ball step sorting and screening device uses vibration to sort bearing steel balls, the surface of the steel balls is damaged, which affects the overall quality of the bearing steel balls and reduces their performance and use value. The upper left and right ends of the cabinet 1 are symmetrically opened with sliding grooves 14, and the sliding rods 13 are precisely embedded in the grooves and can slide flexibly. This design creates an efficient sliding guide structure, which transforms the direct friction between the sorting bed 3 and the cabinet 1 into low-resistance sliding friction during the reciprocating motion, effectively reducing mechanical wear and greatly extending the overall service life of the equipment. The left and right ends of the front side of the feeding bin 4 are respectively provided with screw holes. By tightening the screws 5, the warning sign 6 can be firmly installed in front of the feeding bin 4. When the device is running, it can attract the attention of the operators and surrounding personnel at the first time, avoid potential safety risks, and build a solid safety line for the operation of the equipment.

[0035] Reference Figure 1 , Figure 2 and Figure 3 A side plate 7 is fixedly connected to the upper right side of the outer wall of the feeding hopper 4, and a hook 8 is fixedly connected to the bottom of the side plate 7 for convenient hanging of items by the user; a support frame 16 is fixedly connected to the bottom of the motor 15, and a base plate 17 is fixedly connected to the bottom of the support frame 16 to support the motor 15.

[0036] Specifically, a side plate 7 is fixedly installed on the upper right side of the feed hopper 4, with a hook 8 at its bottom, which makes it convenient for users to hang various items, making full use of space and making it easier to access commonly used tools or objects; support frames 16 are evenly fixedly installed around the bottom of the motor 15, with their lower ends firmly connected to the base plate 17, forming a solid support structure, effectively distributing the load generated by the motor 15 during operation, ensuring that the motor 15 remains stable during operation, and providing a strong guarantee for the reliable operation of the equipment.

[0037] Working principle: By turning on the motor 15, the sorting bed 3 shakes left and right, thus separating bearing steel balls of different diameters. Because the output end of the motor 15 is welded to the rotating rod 21, and the other end of the rotating rod 21 is welded to the transmission plate 23, the transmission plate 23 will rotate synchronously when the motor 15 is turned on. The two transmission plates 23 are connected by a rotating shaft 22. The other end of the transmission plate 23 is connected to the moving rod 24 through the rotating shaft 22 and can rotate. The other end of the moving rod 24 is connected to the sorting bed 3, and its outer side is fitted inside the limiting ring 20. The limiting ring 20 restricts the movement of the moving rod 24, causing it to be controlled by the motor 15. When started, the ball can only move left and right, which allows the sorting bed 3 to move left and right. This allows the bearing steel balls to move left and right while the sorting bed 3 is falling up and down, thus slowing down the movement speed of the steel balls and making them pass through the corresponding size sorting opening more effectively. The right side of the limiting ring 20 is welded to the fixed long rod 19, which is fixed to the fixed plate 18. The fixed plate 18 is welded to the rear side of the cabinet 1, which plays a role in stabilizing the limiting ring 20. This solves the problem that when the bearing steel ball stepped sorting and screening device uses vibration to sort bearing steel balls, the surface of the steel balls is damaged, which affects the overall quality of the bearing steel balls and reduces their performance and use value.

[0038] The capacity is controlled and the wear on the bearing steel ball surface is reduced by raising or lowering the turntable 208 to rotate the shield 206. When the turntable 208 is rotated, the gear 205 welded to it via the drive shaft 207 rotates synchronously, thereby driving the rack 204 in the groove rod 201 to move up and down. When the rack 204 moves, it drives the long plate 203 connected to it to move up and down. Because two tie rods 202 are welded to the bottom of the long plate 203 and the shield 206 is fixed at the bottom, the long plate 203 moves up and down at the same time, driving the bottom tie rods 202 and the shield 206 at the bottom of the tie rods 202 to move synchronously. This allows the sorting port to be covered when not needed, reducing the wear on the bearing steel ball surface and meeting different screening requirements.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stepped sorting and screening device for bearing steel balls, comprising a cabinet (1), characterized in that: A fixing plate (18) is fixedly connected to the rear side of the outer wall of the cabinet (1). A fixing long rod (19) is fixedly connected to the left side of the outer wall of the fixing plate (18). A limit ring (20) is fixedly connected to the left side of the outer wall of the fixing long rod (19). A sorting bed (3) is provided on the top of the cabinet (1). A movable round rod (24) is fixedly connected to the rear side of the outer wall of the sorting bed (3). The movable round rod (24) is slidably connected inside the limit ring (20). The left side of the outer wall of the movable round rod (24) is fixedly connected to the limit ring (20). A rotating shaft (22) is fixedly connected to the cabinet (1). A transmission plate (23) is rotatably connected to the left end of the outer wall of the rotating shaft (22). A motor (15) is provided on the rear side of the outer wall of the cabinet (1). A rotating rod (21) is fixedly connected to the output end of the motor (15). The left end of the outer wall of the rotating rod (21) is fixedly connected to the other end of the outer wall of the transmission plate (23). A feeding bin (4) is fixedly connected to the top right side of the cabinet (1). A moving device (2) is fixedly connected to the top left end of the outer wall of the cabinet (1).

2. The bearing steel ball step sortation screening apparatus of claim 1, wherein: The moving device (2) includes a grooved rod (201), which is installed on the top left end of the outer wall of the cabinet (1). A drive shaft (207) is fixedly connected to the middle left end of the grooved rod (201). A gear (205) is fixedly connected to the outer end of the drive shaft (207). A turntable (208) is fixedly connected to the outer front end of the drive shaft (207). A rack (204) is slidably connected inside the grooved rod (201). The right side of the outer wall of the gear (205) meshes with the rack (204). A long plate (203) is fixedly connected to the top of the rack (204). A pull rod (202) is fixedly connected to the front and rear ends of the bottom of the long plate (203). A cover plate (206) is fixedly connected to the bottom of the pull rod (202). A fixed short shaft (209) is slidably connected to the middle of the grooved rod (201).

3. The bearing steel ball step sortation screening apparatus of claim 1, wherein: Multiple receiving boxes (11) are equidistantly slidably connected in the middle of the cabinet (1), and a spherical pull block (12) is fixedly connected to the front side of the outer wall of the receiving box (11).

4. The bearing steel ball step sortation screening apparatus of claim 1, wherein: The cabinet (1) has four fixed corners at the bottom with load-bearing columns (9), and the bottom of the load-bearing columns (9) is fixed with foot pads (10).

5. The bearing steel ball step sortation screening apparatus of claim 1, wherein: The cabinet (1) has equidistant grooves (14) on both the front and back sides of its outer wall, and a slide rod (13) is slidably connected inside the groove (14).

6. The bearing steel ball step sortation screening apparatus of claim 1, wherein: The feed hopper (4) has multiple screws (5) threaded at equal intervals on the front side of its outer wall, and warning signs (6) are threaded on the outer wall of the screws (5).

7. The bearing steel ball step sortation screening apparatus of claim 1, wherein: A side plate (7) is fixedly connected to the upper right side of the outer wall of the feed hopper (4), and a hook (8) is fixedly connected to the bottom of the side plate (7).

8. The bearing steel ball step sortation screening apparatus of claim 1, wherein: The bottom of the motor (15) is fixedly connected to a support frame (16), and the bottom of the support frame (16) is fixedly connected to a base plate (17).

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