Screening device for bearing rollers

Abstract

The utility model relates to the technical field of bearing roller screening, in particular to a screening device for bearing rollers, which comprises a screening mechanism for preliminarily screening the bearing rollers, and a secondary screening mechanism for secondarily screening the preliminarily screened bearing rollers is arranged on the lower side of the screening mechanism. The bearing rollers subjected to primary screening are conveyed to drive a cam to rotate through an auxiliary conveying roller, an ejection rod, a sliding seat and a connecting plate are ejected upwards through rotation of the cam, two first screening plates are turned over up and down through upward movement of the connecting plate, and then rolling screening operation is conducted on the bearing rollers; further, the situation that the screening efficiency is affected due to the fact that the bearing rollers are blocked during screening is avoided, a second screening plate vibrates up and down in a reciprocating mode through pushing of a cam and tensioning of a spring, and the bearing rollers between every two adjacent guide strips are shaken through vibration; and then the bearing rollers meeting the size requirement are subjected to secondary screening in the process of passing through the second screening plate.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing roller screening, in particular to a screening device for bearing rollers. Background Art

[0002] After searching the patent document with announcement number CN220658249U, it is found that the vibration plate of the screening device can make arc movement to reduce the blockage of the feed pipe through the cooperation between the vibration plate, the fixed cylinder, the limit block, the limit groove, the spring and the movable column, and the screening cylinder can perform secondary screening through the cooperation between the motor, the pulley, the gear, the gear ring and the belt;

[0003] The patent document states that the bearing rollers pass through the feed pipe and the guide box to reach the first screening cylinder for screening. During this process, there is a certain recessed area where the first screening cylinder and the guide box slide out of the bearing rollers. Therefore, the bearing rollers that have not entered the first screening cylinder may gather here. Due to the existence of the recessed area, the number of bearing rollers that do not meet the size of the first screening cylinder that can roll over the first screening cylinder is small. At the same time, the bearing rollers at this position will hinder the next bearing roller, thereby affecting the entire screening speed. Utility Model Content

[0004] The purpose of the utility model is to provide a screening device for bearing rollers in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A screening device for bearing rollers, comprising a screening mechanism for performing preliminary screening on bearing rollers, a secondary screening mechanism for performing secondary screening on the bearing rollers after the preliminary screening is provided at the lower side of the screening mechanism;

[0007] The screening mechanism includes a feed hopper, with conical sleeves fixed at both sides of the feed hopper, first screening plates arranged in the two conical sleeves, a connecting plate hinged between the two first screening plates, a first notch for facilitating the sliding of one end of the first screening plate away from the connecting plate is provided on the conical sleeve, second notches are provided at both front and rear ends of the feed hopper, sliding seats are slidably connected in the two second notches, one end of the two sliding seats extending into the feed hopper is fixed to the front and rear ends of the connecting plate, and a pushing mechanism for conveying the screened bearing rollers is provided on the sliding seat;

[0008] The re-screening mechanism includes a conveying box, which is fixed at the lower end of the feed hopper. A rolling frame is fixed at one end of the conveying box, and a support plate is fixed at the other end of the conveying box. A plurality of guide bars and a second screening plate are provided between the support plate and the rolling frame. The plurality of guide bars are located above the second screening plate, and a spring is fixed at one end of the second screening plate extending out of the conveying box.

[0009] Preferably, the conveying box is provided with a third notch at the position of the second screening plate, and the second screening plate is slidably connected to the third notch.

[0010] Preferably, limit blocks for fixing springs are provided at both the front and rear ends of the conveying box, and screening holes for screening bearing rollers are provided at the tops of both the second screening plate and the first screening plate.

[0011] Preferably, the pushing mechanism includes auxiliary conveying rollers. A roller feeding assembly for driving the bearing rollers to roll is provided on the outer side of the auxiliary conveying rollers. Cams are fixed at both ends of the auxiliary conveying rollers extending out of the conveying box. A push rod is provided on one side of the cam, and the upper end of the push rod is hinged to the sliding seat.

[0012] Preferably, a fixing sleeve for facilitating the sliding of the push rod is fixed between the cam and the sliding seat, and the lower end of the push rod contacts the outer edge of the cam.

[0013] Preferably, the size of the cam is larger than the distance from the center of the auxiliary conveying roller to the second screening plate.

[0014] The beneficial effects compared with the prior art are as follows:

[0015] 1. By conveying the initially screened bearing rollers, the cam is driven to rotate by the auxiliary conveying rollers. Through the rotation of the cam, the push rod, the sliding seat, and the connecting plate are pushed upward. Through the upward movement of the connecting plate, the two first screening plates are turned up and down, and then the bearing rollers are subjected to rolling screening operations, thereby avoiding congestion during the screening of bearing rollers and affecting the screening efficiency.

[0016] 2. Through the pushing of the cam and the tensioning of the spring, the second screening plate vibrates up and down reciprocally. Through the vibration, the bearing rollers between two adjacent guide bars are shaken, and then the bearing rollers meeting the dimensional requirements are subjected to secondary screening during the process of passing through the second screening plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a screening device for bearing rollers according to the present invention;

[0019] Figure 2 It is a cross-sectional view of a screening device for bearing rollers according to the present invention;

[0020] Figure 3It is a partial cross-sectional view of the second screening plate of a screening device for bearing rollers according to the present utility model;

[0021] Figure 4 It is a partial part drawing of the first screening plate of a screening device for bearing rollers according to the present utility model;

[0022] Figure 5 It is a mating diagram of the sliding seat and the top push rod of a screening device for bearing rollers according to the present utility model;

[0023] Figure 6 It is a mating diagram of the auxiliary conveying roller and the cam of a screening device for bearing rollers according to the present utility model;

[0024] Figure 7 It is a partial cross-sectional view of the conveying box of a screening device for bearing rollers according to the present utility model;

[0025] Figure 8 It is a partial part drawing of the connecting plate of a screening device for bearing rollers according to the present utility model.

[0026] The description of the reference numerals is as follows:

[0027] 1, screening mechanism; 2, re-screening mechanism; 3, top push mechanism; 11, feed hopper; 12, tapered sleeve; 13, connecting plate; 14, first screening plate; 15, sliding seat; 21, conveying box; 22, rolling frame; 23, support plate; 24, guide bar; 25, second screening plate; 26, spring; 31, drive motor; 32, synchronous belt; 33, main conveying roller; 34, auxiliary conveying roller; 35, cam; 36, top push rod; 37, fixed sleeve. Detailed implementation manners

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] The present utility model will be further described below with reference to the accompanying drawings:

[0030] As Figures 1-8 shown, a screening device for bearing rollers includes a screening mechanism 1 for preliminarily screening bearing rollers, and a re-screening mechanism 2 for secondarily screening the bearing rollers preliminarily screened is provided below the screening mechanism 1;

[0031] In this embodiment: The screening mechanism 1 includes a feed hopper 11. Conical sleeves 12 are fixed at both sides of the feed hopper 11. First screening plates 14 are arranged in both conical sleeves 12. A connecting plate 13 is hinged between the two first screening plates 14. First notches are formed in the conical sleeves 12 for facilitating the sliding of the ends of the first screening plates 14 away from the connecting plate 13. Second notches are provided at both the front and rear ends of the feed hopper 11. Sliding seats 15 are slidably connected in both second notches. The ends of the two sliding seats 15 extending into the interior of the feed hopper 11 are fixed to the front and rear ends of the connecting plate 13. A pushing mechanism 3 for conveying the screened bearing rollers is arranged on the sliding seats 15. The bearing rollers to be screened are introduced onto the connecting plate 13 and the two first screening plates 14 by the feed hopper 11. At this time, the connecting plate 13 is driven by the sliding seats 15 to move up and down along the second notches, so as to drive the ends of the two first screening plates 14 close to each other to reciprocally turn up and down. At the same time, the ends of the first screening plates 14 away from the connecting plate 13 will reciprocally slide along the first notches, and then the bearing rollers will reciprocally roll on the first screening plates 14. As the bearing rollers roll, the bearing rollers meeting the size requirements will fall into the re-screening mechanism 2.

[0032] In this embodiment: The re-screening mechanism 2 includes a conveying box 21. The conveying box 21 is fixed at the lower end of the feed hopper 11. A rolling frame 22 is fixed at one end inside the conveying box 21. A support plate 23 is fixed at the other end inside the conveying box 21. A plurality of guiding strips 24 and a second screening plate 25 are arranged between the support plate 23 and the rolling frame 22. The plurality of guiding strips 24 are located above the second screening plate 25. A spring 26 is fixed to the end of the second screening plate 25 extending out of the conveying box 21. A third notch is formed in the conveying box 21 at the position of the second screening plate 25. The second screening plate 25 is slidably connected to the third notch. Limit blocks for fixing the spring 26 are arranged at both the front and rear ends of the conveying box 21. Screening holes for screening the bearing rollers are formed at the tops of both the second screening plate 25 and the first screening plate 14. The bearing rollers preliminarily screened by the screening mechanism 1 fall into the conveying box 21, and the bearing rollers preliminarily screened are slid to a plurality of guiding strips 24 by the rolling frame 22. The stacked bearing rollers are separated by two adjacent guiding strips 24, so as to be successively poured between two adjacent guiding strips 24 one by one. Then, under the action of the pushing mechanism 3, the second screening plate 25 is driven to move up and down along the third notch, so that the bearing rollers meeting the hole size of the second screening plate 25 leak out through vibration, and the bearing rollers not meeting the size requirements are sent outwards under the action of the pushing mechanism 3, thus completing the secondary screening of the bearing rollers.

[0033] In this embodiment: The pushing mechanism 3 includes an auxiliary conveying roller 34. Outside the auxiliary conveying roller 34, there is a main conveying roller 33 for driving the bearing rollers to roll. A synchronous belt 32 for driving the bearing rollers to be conveyed is sleeved outside the main conveying roller 33 and the auxiliary conveying roller 34. At the input end of the main conveying roller 33, a driving motor 31 for driving its rotation is fixedly arranged. At both ends of the auxiliary conveying roller 34 extending out of the conveying box 21, there are fixed cams 35. On one side of the cam 35, there is a push rod 36. The upper end of the push rod 36 is hinged to the sliding seat 15. A fixed sleeve 37 for facilitating the sliding of the push rod 36 is fixed between the cam 35 and the sliding seat 15. The lower end of the push rod 36 contacts the outer edge of the cam 35. The size of the cam 35 is larger than the distance from the center of the auxiliary conveying roller 34 to the second screening plate 25. By the rotation of the driving motor 31, the main conveying roller 33 at its rear end is driven to rotate. By the rotation of the main conveying roller 33, the synchronous belt 32 is driven to rotate synchronously. By the transmission of the synchronous belt 32, the auxiliary conveying roller 34 is also driven to rotate accordingly. Then, by the rotation of the synchronous belt 32, the bearing rollers for secondary screening are conveyed. At the same time, by the rotation of the auxiliary conveying roller 34, the two cams 35 are driven to rotate. By the rotation of the cam 35, the push rod 36 is pushed to slide upward along the fixed sleeve 37. Then, the sliding seat 15 is pushed upward by the push rod 36. Then, the two first screening plates 14 are made to complete the up-and-down flipping action.

[0034] Working principle: When in use, first pour the bearing rollers to be screened into the feed hopper 11, and guide the bearing rollers to be screened onto the connecting plate 13 and the two first screening plates 14 through the feed hopper 11, and drive the main conveying roller 33 at its rear end to rotate through the rotating part of the driving motor 31, and drive the synchronous belt 32 to rotate synchronously through the rotation of the main conveying roller 33, and use the transmission of the synchronous belt 32 to drive the auxiliary conveying roller 34 to rotate accordingly, and drive the two cams 35 to rotate through the rotation of the auxiliary conveying roller 34, and use the rotation of the cam 35 to push the push rod 36 to slide upward along the fixed sleeve 37, and then push the sliding seat 15 upward through the push rod 36, and then the two sliding seats 15 drive the connecting plate 13 to move up and down along the second notch, so as to drive the ends of the two first screening plates 14 that are close to each other to flip up and down, and at the same time, the end of the first screening plate 14 away from the connecting plate 13 will slide back and forth along the first notch, and then the bearing rollers roll up and down along the flipped first screening plate 14, and as the bearing rollers The rolling of the bearing rollers that meet the mesh size of the first screening plate 14 is dropped into the conveying box 21, and the rolling rack 22 in the conveying box 21 is used to slide the preliminarily screened bearing rollers to one end of the plurality of guide strips 24, and the previous bearing roller is pushed between two adjacent guide strips 24 by the bearing rollers that continuously roll down from the rolling rack 22. At the same time, the rotation of the synchronous belt 32 is used to convey the secondary screened bearing rollers, and then the bearing rollers accumulated at one end of the guide strip 24 are separated, so that they can be poured into the conveying box 21 one by one. Between two adjacent guide bars 24, the second screening plate 25 is pushed downward by the rotation of the cam 35, and the second screening plate 25 moves up and down along the third slot under the pull of the spring 26, so that the bearing rollers are vibrated up and down, so that the vibrating bearing rollers are aligned with the sieve holes of the second screening plate 25, and then the bearing rollers that meet the size of the sieve holes of the second screening plate 25 are leaked out, while the bearing rollers that do not meet the size are sent out following the action of the pushing mechanism 3, thereby completing the secondary bearing roller screening.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A screening device for bearing rollers, characterized in that: It comprises a screening mechanism (1) for performing preliminary screening on bearing rollers, and a secondary screening mechanism (2) for performing secondary screening on the bearing rollers after the preliminary screening is provided on the lower side of the screening mechanism (1); The screening mechanism (1) comprises a feed hopper (11), conical sleeves (12) are fixed at both sides of the feed hopper (11), first screening plates (14) are arranged in the two conical sleeves (12), a connecting plate (13) is hinged between the two first screening plates (14), a first notch is provided on the conical sleeve (12) for facilitating the first screening plate (14) to slide away from one end of the connecting plate (13), second notches are provided at both front and rear ends of the feed hopper (11), sliding seats (15) are slidably connected in the two second notches, one end of the two sliding seats (15) extending into the interior of the feed hopper (11) is fixed to the front and rear ends of the connecting plate (13), and a pushing mechanism (3) is provided on the sliding seat (15) for conveying the screened bearing rollers; The re-screening mechanism (2) comprises a conveying box (21), wherein the conveying box (21) is fixed at the lower end of the feed hopper (11), a rolling frame (22) is fixed at one end inside the conveying box (21), a support plate (23) is fixed at the other end inside the conveying box (21), a plurality of guide bars (24) and a second screening plate (25) are provided between the support plate (23) and the rolling frame (22), the plurality of guide bars (24) are located above the second screening plate (25), and a spring (26) is fixed at one end of the second screening plate (25) extending out of the conveying box (21).

2. A screening device for bearing rollers according to claim 1, characterized in that: The conveying box (21) is provided with a third notch at the position of the second screening plate (25), and the second screening plate (25) is slidably connected to the third notch.

3. A screening device for bearing rollers according to claim 1, characterized in that: The front and rear ends of the conveying box (21) are both provided with limit blocks for fixing the spring (26), and the tops of the second screening plate (25) and the first screening plate (14) are both provided with sieve holes for screening the bearing rollers.

4. A screening device for bearing rollers according to claim 1, characterized in that: The pushing mechanism (3) comprises an auxiliary conveying roller (34), the outer side of the auxiliary conveying roller (34) is provided with a conveying roller assembly for driving the bearing roller to roll, and both ends of the auxiliary conveying roller (34) extending out of the conveying box (21) are fixed with cams (35), and one side of the cam (35) is provided with a pushing rod (36), and the upper end of the pushing rod (36) is hinged to the sliding seat (15).

5. A screening device for bearing rollers according to claim 4, characterized in that: A fixing sleeve (37) is fixed between the cam (35) and the sliding seat (15) to facilitate the sliding of the push rod (36), and the lower end of the push rod (36) is in contact with the outer edge of the cam (35).

6. A screening device for bearing rollers according to claim 4, characterized in that: The size of the cam (35) is greater than the distance from the center of the auxiliary conveying roller (34) to the second screening plate (25).

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