A vibrating screen spherical roller bearing with adaptive protection

Abstract

The present invention discloses a self-aligning roller bearing for a vibrating screen with adaptive protection, which relates to the technical field of bearings. The bearing comprises an outer ring, an inner ring mounted on the inner wall of the outer ring, a retaining frame mounted on the outer wall of the inner ring, multiple sets of mounting grooves provided on the outer wall of the retaining frame, rolling bodies slidably mounted on the inner walls of the multiple sets of mounting grooves, connecting rings fixedly connected to the upper and lower ends of the retaining frame, a retaining groove provided at the contact position between the connecting ring and the retaining frame, spring retaining rings movably mounted on the inner walls of the retaining grooves, a cavity provided inside the retaining frame, and multiple sets of arc-shaped blocks corresponding to the rolling bodies fixedly connected to the inner wall of the cavity, and a damping assembly provided on the inner wall of the mounting groove for damping the rolling bodies. The present invention dampens the rolling bodies through the damping assembly, thereby preventing the rolling bodies from cracking after long-term use and increasing the service life of the rolling bodies. The compensating assembly can perform secondary damping on the rolling bodies, thereby improving the damping effect.

Description

Technical Field

[0001] The present invention relates to the technical field of bearings, and in particular to a self-adaptive protective spherical roller bearing for a vibrating screen. Background Art

[0002] The vibrating screen works by utilizing the reciprocating vibration generated by the vibrator excitation. The upper rotating hammer of the vibrator causes the screen surface to produce planar gyratory vibration, while the lower rotating hammer causes the screen surface to produce conical gyratory vibration. The combined effect causes the screen surface to produce compound gyratory vibration.

[0003] Roller bearings are a type of rolling bearing and are one of the components widely used in modern machinery. They rely on rolling contact between the main components to support rotating parts. Most roller bearings are now standardized. Roller bearings have the advantages of small starting torque, high rotation accuracy, and easy selection.

[0004] In the prior art, under the action of the vibrating screen, the roller bearing will vibrate during use. Under the high-frequency vibration of the vibrating screen, the wear between the rolling element and the bearing may be aggravated. After long-term use, the generation of bearing cracks may be aggravated, thereby reducing the service life of the rolling element to a certain extent, which may cause equipment failure and affect the normal operation of the work. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a vibrating screen spherical roller bearing with adaptive protection to solve the technical problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a self-aligning roller bearing for a vibrating screen with adaptive protection, comprising an outer ring, an inner ring installed on the inner wall of the outer ring, a retaining frame installed on the outer wall of the inner ring, a plurality of mounting grooves provided on the outer wall of the retaining frame, rolling bodies slidably installed on the inner walls of the plurality of mounting grooves, connecting rings fixedly connected to the upper and lower ends of the retaining frame, a retaining ring provided at the contact position between the connecting ring and the retaining frame, spring retaining rings movably installed on the inner walls of the retaining grooves, a cavity provided inside the retaining frame, and a plurality of groups of arc blocks corresponding to the rolling bodies fixedly connected to the inner wall of the cavity, an arc groove provided on the inner wall of the arc block, a damping component for cushioning the rolling bodies provided on the inner wall of the mounting groove, and a compensation component for assisting the damping component provided on the inner wall of the arc groove.

[0007] Preferably, the vibration damping assembly includes two groups of support blocks in contact with the outer wall of the rolling body, and the two groups of support blocks are staggered up and down. One end of the support block away from the rolling body is fixedly connected to a connecting rod that is slidably sleeved on the retaining frame, and the other end of the connecting rod is fixedly connected to the first magnetic block. The outer wall of the connecting rod is slidably sleeved with a fixed sleeve, and the other end of the fixed sleeve is fixedly connected to the third magnetic block.

[0008] Preferably, a second magnetic block that repels the first magnetic block is fixedly mounted on one end of the inner wall of the fixing sleeve away from the supporting block.

[0009] Preferably, the compensation component includes an arc-shaped plate, a fourth magnetic block that repels the third magnetic block is mounted on one side surface of the arc-shaped plate, and a plurality of rollers that are in sliding contact with the inner wall of the arc-shaped groove are fixedly mounted on the other end of the arc-shaped plate.

[0010] Preferably, a second ball is movably embedded in the contact position between the support block and the outer wall of the rolling body, and three groups of first balls in contact with the upper and lower inner walls of the arc groove are movably embedded in the upper and lower ends of the arc plate.

[0011] Preferably, the outer wall of the fixed sleeve is symmetrically provided with grooves near one end of the third magnetic block, and two groups of heat dissipation pipes are symmetrically provided at the upper and lower ends of the arc block, and the heat dissipation pipes are arranged obliquely.

[0012] Preferably, heat dissipation holes corresponding to the heat dissipation pipes are provided on the upper and lower end surfaces of the retaining frame, and the heat dissipation holes are conical.

[0013] Preferably, two groups of sliding blocks are symmetrically fixedly connected to one end of the outer wall of the fixed sleeve away from the third magnetic block, and matching sliding grooves are provided inside the retaining frame.

[0014] In summary, the present invention mainly has the following beneficial effects:

[0015] 1. The present invention uses the support block, the first magnetic block, and the fixed sleeve in the damping assembly to perform a vibration reduction operation on the rolling element when it is in use, thanks to the characteristics of the magnetic blocks that like poles repel and opposite poles attract. This reduces the possibility of the rolling element breaking under the high-frequency vibration of the vibrating screen. When the bearing rotates, under the action of centrifugal force, the pressure on one side of the rolling element increases. At the same time, the arc plate moves on the inner wall of the arc groove under the action of centrifugal force and the roller. At this time, the fourth magnetic block on the arc plate in the compensation assembly cooperates with the third magnetic block to perform a vibration reduction operation on the rolling element again, thereby to a certain extent extending the service life of the rolling element and reducing the occurrence of cracks.

[0016] 2. When the present invention uses the vibration damping assembly to reduce the vibration of the rolling element, the first magnetic block moves inside the fixed sleeve, thereby facilitating the continuous extrusion of the air inside the fixed sleeve through the slots. At this time, the heat inside the arc block and the arc slot is discharged through the inclined heat dissipation pipe, and then the heat is discharged again in conjunction with the heat dissipation holes on the retaining frame. Since the heat dissipation holes are conical in shape, the heat dissipation effect of the heat dissipation holes can be further improved, thereby preventing equipment failure caused by overheating of the rolling element to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a disassembled three-dimensional schematic diagram of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the decomposed structure of the arc block of the present invention;

[0020] Figure 4 This is a schematic diagram of a top view of a cage according to the present invention;

[0021] Figure 5 This is a three-dimensional schematic diagram of the disassembled structure of the vibration damping component of the present invention;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of the arc block of the present invention;

[0023] Figure 7 For the present invention Figure 2 Schematic diagram of the local structure at point A;

[0024] Figure 8 For the present invention Figure 4 Schematic diagram of the local structure at point B in the middle.

[0025] In the figure: 1. Outer ring; 2. Inner ring; 3. Retaining frame; 31. Mounting groove; 32. Connecting ring; 33. Slot; 34. Heat dissipation hole; 4. Rolling element; 5. Spring retaining ring; 6. Arc block; 61. Heat dissipation pipe; 62. Arc groove; 71. Arc plate; 72. First ball; 73. Roller; 81. Support block; 82. Connecting rod; 821. First magnetic block; 83. Second ball; 84. Fixed sleeve; 85. Third magnetic block; 86. Slider; 87. Slot. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0027] The following describes an embodiment of the present invention based on its overall structure.

[0028] A self-adaptive protective spherical roller bearing for a vibrating screen, such as Figures 1-8 As shown, it includes an outer ring 1, an inner ring 2 is mounted on the inner wall of the outer ring 1, and a retainer 3 is mounted on the outer wall of the inner ring 2. The retainer 3 is made of 65Mn spring steel, which is easy to restore to its original shape after being stretched, thereby reducing the bearing processing cost, reducing the weight of the bearing, and increasing the bearing speed;

[0029] For example, the outer wall of the retainer 3 is provided with multiple groups of mounting grooves 31, and the inner walls of the multiple groups of mounting grooves 31 are slidably mounted with rolling elements 4. The outer diameter opening of the mounting groove 31 is chamfered to be smaller than the median diameter φdw of the rolling element 4 by 10.2-0.25, so that the retainer 3 can self-lock the rolling element 4. The rolling element 4 adopts a single-row design and its length is extended, thereby improving the bearing capacity;

[0030] For example, the upper and lower ends of the retainer 3 are fixedly connected to a connecting ring 32, and a slot 33 is provided at the contact position between the connecting ring 32 and the retainer 3. A spring retainer 5 is movably installed on the inner wall of the slot 33, and the spring retainer 5 can reduce the occurrence of bearing unbalanced load phenomenon;

[0031] Exemplarily, a cavity is provided inside the retainer 3, and a plurality of groups of arc blocks 6 corresponding to the rolling elements 4 are fixedly connected to the inner wall of the cavity. An arc groove 62 is provided on the inner wall of the arc block 6. A damping component for cushioning the rolling elements 4 is provided on the inner wall of the mounting groove 31. The damping component can dampen the vibration of the rolling elements 4, thereby increasing their service life.

[0032] Exemplarily, a compensation component is provided on the inner wall of the arc-shaped groove 62 to assist the vibration damping component.

[0033] See Figure 3 、 Figure 4 、 Figure 5 、 Figure 8 It can be seen that the vibration damping assembly includes two groups of support blocks 81 in contact with the outer wall of the rolling element 4. The two groups of support blocks 81 are staggered up and down, and can dampen the vibration of the rolling element 4 in multiple directions.

[0034] Illustratively, one end of the support block 81 away from the rolling body 4 is fixedly connected to a connecting rod 82 that is slidably sleeved on the retaining frame 3, the other end of the connecting rod 82 is fixedly connected to a first magnetic block 821, a fixed sleeve 84 is slidably sleeved on the outer wall of the connecting rod 82, and the other end of the fixed sleeve 84 is fixedly connected to a third magnetic block 85. The connecting rod 82 and the first magnetic block 821 can be limited by the fixed sleeve 84, so that the first magnetic block 821 can only move on the inner wall of the fixed sleeve 84.

[0035] See Figure 5 It can be seen that a second magnetic block that repels the first magnetic block 821 is fixedly installed on the inner wall of the fixed sleeve 84 at one end away from the support block 81 , and the second magnetic block cooperates with the support block 81 to slow down the vibration of the rolling element 4 based on the principle that like poles repel each other.

[0036] See Figure 3 As can be seen, the compensation assembly includes an arc-shaped plate 71, and a fourth magnetic block is mounted on one side of the arc-shaped plate 71, which repels the third magnetic block 85. Under the principle of like poles repelling each other, the rolling element 4 can be subjected to secondary vibration damping.

[0037] Exemplarily, a plurality of rollers 73 are fixedly mounted on the other end of the arc plate 71 and are in sliding contact with the inner wall of the arc groove 62 . The rollers 73 can drive the arc plate 71 to slide along the inner wall of the arc groove 62 under the action of the centrifugal force of the bearing.

[0038] See Figure 3 and Figure 5 It can be seen that the second ball 83 is movably embedded in the contact position between the support block 81 and the outer wall of the rolling body 4, and three groups of first balls 72 that contact the inner walls of the upper and lower ends of the arc groove 62 are movably embedded in the upper and lower ends of the arc plate 71. The second balls 83 can reduce the friction force of the rolling body 4 rotating in the mounting groove 31, and the first balls 72 can reduce the friction resistance of the arc plate 71 moving in the arc groove 62.

[0039] See Figure 3 、 Figure 5 、 Figure 6 As can be seen, a slot 87 is symmetrically opened on the outer wall of the fixed sleeve 84 near one end of the third magnetic block 85. When the first magnetic block 821 moves in the fixed sleeve 84, the air in the sleeve can be squeezed out from the slot 87.

[0040] For example, two groups of heat dissipation pipes 61 are symmetrically provided at the upper and lower ends of the arc-shaped block 6 . The heat dissipation pipes 61 are arranged at an angle and can discharge the heat inside the retaining frame 3 .

[0041] See Figure 7 It can be seen that heat dissipation holes 34 corresponding to the heat dissipation pipes 61 are provided on the upper and lower surfaces of the retaining frame 3. The heat dissipation holes 34 are set in a conical shape. The heat dissipation holes 34 cooperate with the heat dissipation pipes 61 to discharge the heat inside the retaining frame 3, preventing the rolling element 4 from being damaged due to excessive temperature after long-term rotation. The heat dissipation holes 34 are set in a conical shape to enhance the heat dissipation effect.

[0042] See Figure 5 and Figure 8 It can be seen that two sets of sliders 86 are symmetrically fixedly connected to the end of the outer wall of the fixed sleeve 84 away from the third magnetic block 85, and a matching slide groove is opened inside the retaining frame 3. The setting of the slider 86 and the slide groove can make the fixed sleeve 84 move parallel to each other, thereby facilitating the vibration damping of the rolling body 4.

[0043] The working principle of the present invention is as follows: after the bearing is installed on the vibrating screen, the vibrating motor on the vibrating screen drives the bearing to rotate, and the vibrating screen is used. When the bearing rotates, the inner ring 2 cooperates with the retaining frame 3 to drive the rolling element 4 to rotate on the inner wall of the outer ring 1. During use, the rolling element 4 will vibrate. During the rotation of the rolling element 4, the first magnetic block 821 and the second magnetic block repel each other with the same poles, and the supporting block 81 is driven by the connecting rod 82 to cushion the rolling element 4, thereby reducing the risk of cracks after long-term use.

[0044] Furthermore, centrifugal force is generated during the rotation of the bearing. Under the action of this centrifugal force, the arc plate 71 of the compensation assembly moves along the inner wall of the arc groove 62 via the roller 73. When the arc plate 71 moves to a position where the rolling element 4 is significantly affected by the centrifugal force, the third magnetic block 85 and the fourth magnetic block provide secondary cushioning for the rolling element 4 through the repulsion of like poles, thereby improving the cushioning effect and thereby extending the service life of the rolling element 4.

[0045] Secondly, when the connecting rod 82 drives the first magnetic block 821 to move, the air in the fixed sleeve 84 is squeezed into the arc groove 62, and then the air is dissipated through the inclined heat dissipation pipe 61 and the heat dissipation hole 34 to prevent the rolling body 4 from overheating and causing equipment failure. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0046] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A self-adaptive protective spherical roller bearing for a vibrating screen, comprising an outer ring (1), an inner ring (2) mounted on the inner wall of the outer ring (1), a retaining frame (3) mounted on the outer wall of the inner ring (2), a plurality of mounting grooves (31) provided on the outer wall of the retaining frame (3), rolling bodies (4) being slidably mounted on the inner walls of the plurality of mounting grooves (31), connecting rings (32) being fixedly connected at both upper and lower ends of the retaining frame (3), a retaining groove (33) being provided at a contact position between the connecting ring (32) and the retaining frame (3), and a spring retaining ring (5) being movably mounted on the inner wall of each retaining groove (33), characterized in that: The retaining frame (3) is provided with a cavity inside, and the inner wall of the cavity is fixedly connected with a plurality of groups of arc blocks (6) corresponding to the rolling body (4), the inner wall of the arc block (6) is provided with an arc groove (62), the inner wall of the mounting groove (31) is provided with a damping component for buffering the rolling body (4), the inner wall of the arc groove (62) is provided with a compensation component for assisting the damping component, and the damping component includes two groups of support blocks (81) in contact with the outer wall of the rolling body (4), the two groups of support blocks (81) are staggered up and down, and the support block (81) is away from one end of the rolling body (4). A connecting rod (82) is fixedly connected and slidably sleeved on the retaining frame (3); the other end of the connecting rod (82) is fixedly connected to a first magnetic block (821); a fixed sleeve (84) is slidably sleeved on the outer wall of the connecting rod (82); the other end of the fixed sleeve (84) is fixedly connected to a third magnetic block (85); the compensation component includes an arc plate (71); a fourth magnetic block that repels the third magnetic block (85) is mounted on one side surface of the arc plate (71); and a plurality of rollers (73) that are in sliding contact with the inner wall of the arc groove (62) are fixedly mounted on the other end of the arc plate (71).

2. The self-adaptive protective spherical roller bearing for a vibrating screen according to claim 1, characterized in that: A second magnetic block that repels the first magnetic block (821) is fixedly mounted on one end of the inner wall of the fixed sleeve (84) away from the support block (81).

3. The self-adaptive protective spherical roller bearing for a vibrating screen according to claim 1, characterized in that: A second ball (83) is movably embedded at the contact position between the support block (81) and the outer wall of the rolling body (4), and three groups of first balls (72) are movably embedded at both upper and lower ends of the arc plate (71) and contact the inner walls of the upper and lower ends of the arc groove (62).

4. The self-adaptive protective spherical roller bearing for a vibrating screen according to claim 1, characterized in that: The outer wall of the fixed sleeve (84) is symmetrically provided with a slot (87) at one end close to the third magnetic block (85), and two groups of heat dissipation pipes (61) are symmetrically provided at both upper and lower ends of the arc block (6), and the heat dissipation pipes (61) are arranged in an inclined manner.

5. The self-adaptive protective spherical roller bearing for a vibrating screen according to claim 1, characterized in that: The upper and lower surfaces of the retaining frame (3) are both provided with heat dissipation holes (34) corresponding to the heat dissipation pipes (61), and the heat dissipation holes (34) are arranged in a conical shape.

6. The self-adaptive protective spherical roller bearing for a vibrating screen according to claim 1, characterized in that: Two sets of sliding blocks (86) are symmetrically fixedly connected to one end of the outer wall of the fixed sleeve (84) away from the third magnetic block (85), and matching sliding grooves are provided inside the retaining frame (3).

Images