A bearing ring decontamination cleaning device for bearing production

Abstract

This invention relates to the field of bearing manufacturing technology and discloses a bearing ring cleaning device for bearing production. The device includes a cylindrical body, with a support component rotatably mounted at the bottom axis of the inner wall of the cylindrical body, forming a cleaning interlayer space together with the inner wall of the cylinder, and used for low-damage cleaning of the bearing rings. The device utilizes a top water inlet pipe, a converging section, an expanding section, and a conical seat to form the cleaning interlayer space, along with a conical head and a receiving ring. Tangential water inlet accelerates the flow at the converging section to form a high-speed swirling current, which performs omnidirectional, non-contact rinsing of the bearing rings fitted onto the receiving rings within the cleaning interlayer space. Simultaneously, the swirling current impacts the impellers, driving the conical seat to rotate forward. The locking fit between the spiral grooves and the spiral cavity drives the conical head and bearing rings to rotate synchronously. The turbulence generated by the rotating workpiece and the swirling current enhances the peeling ability of the raceway grooves, achieving low-damage cleaning instead of rigid brushes, reducing damage to the inner rings, and ensuring the surface accuracy, operational stability, and service life of the bearing rings.

Description

Technical Field

[0001] This invention relates to the field of bearing manufacturing technology, and in particular to a bearing ring cleaning and decontamination device for bearing manufacturing. Background Technology

[0002] As a core component of rolling bearings, the surface cleanliness of bearing rings after machining directly determines the bearing's rotational accuracy, noise level, and service life. After heat treatment and grinding, bearing rings retain impurities such as quenching oil, grinding debris, and metal powder on their surface and in the raceway grooves. Thorough cleaning is essential before proceeding to subsequent assembly processes. Currently, the industry primarily uses mechanical brush cleaning devices for cleaning bearing rings. These devices typically include a conveying mechanism, a spraying mechanism, and multiple sets of rigid brush rollers. Through direct contact friction between the brush rollers and the bearing ring surface, combined with the spraying and rinsing of cleaning fluid, the outer surface and end faces of the bearing rings are cleaned. In addition, the industry also utilizes ultrasonic cleaning or high-temperature liquid rinsing for cleaning bearing rings.

[0003] However, the above-mentioned equipment still has the following shortcomings: In the traditional mechanical brush cleaning method, because the bearing ring raceway groove is a concave arc structure and the surface precision requirement is high, the brush will inevitably generate hard contact friction when it is inserted into the raceway for cleaning. It is very easy to leave fine scratches on the inner ring and raceway working surface, which will become stress concentration points in subsequent operation. In addition, in order to remove stubborn dirt in the micro-texture of the raceway, the brushing force needs to be increased, which further aggravates the inherent contradiction between cleaning effect and workpiece damage. Although ultrasonic cleaning can achieve non-contact cleaning, the energy of ultrasonic waves is severely attenuated in the deep concave raceway groove, making it difficult to completely remove metal debris and carbon deposits embedded in the micro-texture. Moreover, the oil stains that are removed from the workpiece after cleaning are easily suspended in the cleaning fluid, which can easily cause secondary pollution when the workpiece is removed. The high-temperature liquid rinsing method requires heating the cleaning fluid to a high temperature, which consumes a lot of energy and the high-temperature medium may affect the stability of the metallographic structure of the bearing ring after heat treatment. At the same time, the effect of simply relying on the liquid impact force to peel off stubborn dirt in the raceway groove is limited, which is difficult to meet the high cleanliness requirements. Summary of the Invention

[0004] To address the shortcomings mentioned above, this invention proposes a bearing ring cleaning and decontamination device for bearing production.

[0005] To achieve the above objectives, this application adopts the following technical solution: a bearing ring cleaning device for bearing production, comprising a cylinder, wherein a support component is rotatably installed at the bottom axis of the inner wall of the cylinder, which together with the inner wall of the cylinder forms a cleaning interlayer space and is used for low-damage cleaning of the bearing ring.

[0006] The cylinder is composed of a top section, a tapering section, a waist section, an expanding section, and a bottom section. The tapering section and the expanding section, as well as the top section and the bottom section, are symmetrical to each other. The inner diameter of the top port of the tapering section is larger than the inner diameter of the bottom port, and vice versa for the expanding section.

[0007] The supporting assembly includes a cone seat rotatably mounted at the axial position inside the bottom section. A lifting rod is fixed at the axial position on the upper surface of the cone seat. Multiple sets of rotating blades are fixedly mounted in an equiangular array around the axis on the curved outer wall of the cone seat. A cone head is movably sleeved on the outer wall of the lifting rod. Multiple sets of receiving ring plates are fixed at equal intervals from top to bottom on the outer wall of the cone head.

[0008] The top section has a top water inlet pipe fixed to its side wall for connecting to external cleaning water, and the bottom section has a drain pipe fixed to its curved outer wall below the cone base.

[0009] Preferably, the outer wall of the lifting rod is fixed with multiple sets of spiral patterns arranged in an equiangular array around the axis, and the inside of the cone head has a spiral cavity of matching size and shape at the contact position with the lifting rod and the spiral patterns.

[0010] Preferably, the outer wall of the cone and the inner wall of the expansion section together form a cone-shaped cleaning interlayer space. The top of the top section has a feed inlet for feeding materials, and the upper surface of the feed inlet is sealed with a splash guard. The bottom of the bottom section has a backflushing port for introducing external cleaning water.

[0011] Preferably, the top water inlet pipe is connected to the tangential part of the top section, and the central axis of the top water inlet pipe forms a certain angle with the tangential part of the top section. The inner wall of the tapering section is fixed with multiple sets of threads at equal angles to enhance the swirling intensity of the external cleaning water.

[0012] Preferably, a suspension bracket is fixed at the inner wall axis of the bottom section, and the cone seat is rotatably installed at the center of the suspension bracket. The bottom of the cone seat is in the shape of an inverted cone, the cone head is in the shape of a cone, and the top is inserted into the waist section. The inside of the cone head is a hollow structure.

[0013] Preferably, the outer diameter of each set of receiving rings increases from top to bottom, and the corners of the receiving rings are fitted with silicone sleeves, and the corners of the silicone sleeves are rounded and chamfered.

[0014] Preferably, the axial height of the bottom section is greater than the axial height of the converging section, and a water inlet pipe is fixedly installed on the inner wall of the bottom section below the drain pipe. The water inlet pipe has a through structure, and the inner diameter of the top port of the water inlet pipe is smaller than the inner diameter of the bottom port.

[0015] Preferably, a double-ended pipe is installed at the end of the top water inlet pipe away from the top section, and the top water inlet pipe is connected to an external water supply device and a temporary water storage tank through two sets of interfaces of the double-ended pipe.

[0016] Preferably, the end of the backflush port away from the bottom section is connected to another set of double-pass pipes, and the two sets of interfaces of the double-pass pipes are respectively connected to another set of external water supply equipment and temporary water storage tank.

[0017] Preferably, the end of the pipe away from the bottom section is connected to an external filter device, the side wall of the waist section is hinged with a cover plate, and the corners of the cover plate are all equipped with seals. A discharge conveying system is provided at the corresponding position on the outer wall of the cover plate, and the outer wall of the multiple sets of receiving rings is fitted with bearing rings.

[0018] The technical effects and advantages of this invention are as follows:

[0019] In this invention, the equipment utilizes a cleaning interlayer space formed by a top water inlet pipe, a converging section, an expanding section, and a conical seat, along with a conical head and a receiving ring. By using tangential water inlet to accelerate and form a high-speed swirling flow in the converging section, the bearing ring fitted on the receiving ring is subjected to all-round, non-contact rinsing within the cleaning interlayer space. Simultaneously, the swirling flow impacts the impeller, driving the conical seat to rotate forward. The locking fit between the spiral grooves and the spiral cavity drives the conical head and bearing ring to rotate synchronously. The turbulence generated by the rotating workpiece and the swirling flow enhances the peeling ability of the raceway grooves, achieving low-damage cleaning that replaces rigid brushes, reducing damage to the inner ring, and ensuring the surface accuracy, operational stability, and service life of the bearing ring.

[0020] In this invention, the equipment utilizes a backflush port at the bottom, a water inlet pipe, an inverted conical surface at the bottom of the cone seat, a lifting rod, and a spiral groove that engages with the spiral cavity of the cone head, along with a receiving ring and a cover plate. After cleaning, reverse water inlet is accelerated through the water inlet pipe to form an upward jet that impacts the cone seat and causes it to rotate in the opposite direction. Simultaneously, the upward water flow generates an upward thrust thanks to the large surface area of ​​the receiving ring and the hollow buoyancy of the cone head. This thrust is reinforced by the lifting force generated when the spiral groove reverses, causing the cone head to drive the bearing ring to rotate smoothly and rise to the waist section. Subsequently, the cover plate is opened to push the bearing ring out to the discharge conveyor system, achieving automatic discharge without rigid contact, avoiding secondary damage, and ensuring the processing quality of the bearing ring throughout the entire process. Attached Figure Description

[0021] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0022] Figure 1 This is a schematic diagram of the main external structure of the present invention;

[0023] Figure 2This is a cross-sectional view of the cylinder of the present invention;

[0024] Figure 3 This is a schematic diagram of the cross-sectional plane of the cylinder of the present invention;

[0025] Figure 4 This is a partial structural disassembly and cross-sectional diagram of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure in the discharge state of the present invention.

[0027] Figure 6 This is a schematic diagram of the cone head and cone seat structure of the present invention.

[0028] Legend: 1. Cylinder; 11. Top section; 12. Reducing diameter section; 13. Waist section; 14. Expanding diameter section; 15. Bottom section; 2. Support assembly; 21. Conical seat; 22. Lifting rod; 221. Spiral pattern; 23. Rotary blade; 24. Conical head; 241. Spiral cavity; 25. Receiving ring; 3. Top water inlet pipe; 4. Pipeline; 5. Water inlet pipe; 6. Bearing ring; 7. Cover plate. Detailed Implementation

[0029] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0030] Reference Figures 1-6 As shown, the present invention provides a technical solution: a bearing ring cleaning device for bearing production, including a cylinder 1, wherein a support component 2 is rotatably installed at the bottom axis of the inner wall of the cylinder 1, which together with the inner wall of the cylinder 1 forms a cleaning interlayer space and is used for low-damage cleaning of the bearing ring 6.

[0031] The cylinder 1 is composed of a top section 11, a tapering section 12, a waist section 13, an expanding section 14, and a bottom section 15. The tapering section 12 and the expanding section 14, as well as the top section 11 and the bottom section 15, are symmetrical to each other. The inner diameter of the top port of the tapering section 12 is larger than the inner diameter of the bottom port, while the inner diameter of the expanding section 14 is the opposite.

[0032] The supporting component 2 includes a cone seat 21 rotatably mounted at the internal axis position of the bottom section 15. A lifting rod 22 is fixed at the axis position of the upper surface of the cone seat 21. Multiple sets of rotating blades 23 are fixedly installed in an equiangular array around the axis on the curved outer wall of the cone seat 21. A cone head 24 is movably sleeved on the outer wall of the lifting rod 22. Multiple sets of receiving ring plates 25 are fixed at equal intervals from top to bottom on the outer wall of the cone head 24.

[0033] The top section 11 has a top water inlet pipe 3 fixed to its side wall for connecting to external cleaning water, and the bottom section 15 has a drain pipe 4 fixed to its curved outer wall below the cone seat 21.

[0034] Reference Figures 4-6 As shown in this embodiment: the outer wall of the lifting rod 22 is fixed with multiple sets of spiral patterns 221 arranged in an equiangular array around the axis. The interior of the cone head 24 is provided with a spiral cavity 241 of matching size and shape at the contact position with the lifting rod 22 and the spiral patterns 221. When the cleaning vortex flows from top to bottom, the impact blade 23 drives the cone head 24 to rotate forward. At this time, the spiral patterns 221 and the spiral cavity 241 are locked, ensuring that the cone seat 21 drives the cone head 24 to rotate together. The reverse is the opposite. The upward backwash water flow, together with the buoyancy of the cone head 24 and the receiving ring plate 25 with a large surface area, generates an upward "pull force". The upward "pull force" and the "lifting force" generated when the lifting rod 22 and the spiral patterns 221 reverse are mutually reinforced, thereby driving the cone head 24 and the bearing ring 6 to move upward into the waist section 13, which is convenient for subsequent material discharge.

[0035] Reference Figures 2-5 As shown in this embodiment: the outer wall of the cone head 24 and the inner wall of the expansion section 14 together form a cone-shaped cleaning interlayer space. The top of the top section 11 is provided with a feed port for feeding, and the upper surface of the feed port is sealed with a splash guard to prevent backwash water from splashing out. The bottom of the bottom section 15 is provided with a backwash port for introducing external cleaning water.

[0036] Reference Figures 1-5 As shown in this embodiment: the top water inlet pipe 3 is connected to the tangential part of the top section 11, and the central axis of the top water inlet pipe 3 forms a certain angle with the tangential part of the top section 11. The cleaning water introduced tangentially enters the inner wall of the top section 11 and flows along its inner wall. The inner wall of the converging section 12 is fixed with multiple sets of threads at equal angles to enhance the swirling intensity of the external cleaning water.

[0037] Reference Figures 2-5As shown in this embodiment: a suspension bracket is fixed at the inner wall axis of the bottom section 15, and the cone seat 21 is rotatably installed at the center of the suspension bracket. The bottom of the cone seat 21 is inverted cone shape. This structure evenly diffuses the backwash water flow, causing it to surge upwards into the cavity inside the expansion section 14. The cone head 24 is cone-shaped as a whole, and its top is inserted into the waist section 13. The inside of the cone head 24 is hollow, which can effectively reduce its own weight, enhance its buoyancy under the action of backwash water flow, and reduce the load requirements on the screw drive of the lifting rod 22. At the same time, its hollow structure can also adjust the water flow channel in real time during the cleaning process (specifically, adjust the flow channel), further disturbing the flow field near the inner ring of the bearing ring 6 and the raceway groove, improving the cleaning effect of the cleaning water, and enhancing the flushing effect on stubborn stains.

[0038] Reference Figures 2-6 As shown in this embodiment: the outer diameter of each set of receiving rings 25 increases from top to bottom, which can accommodate bearing rings 6 with different inner diameters, thus expanding the applicability of the equipment. In addition, the edges and corners of the receiving rings 25 are fitted with silicone sleeves, which can prevent the bearing rings 6 from being damaged or deformed due to excessive impact force when they fall. Furthermore, the edges and corners of the silicone sleeves are rounded and chamfered, which can reduce the resistance of the edges and corners to the bearing rings 6 during the fall and prevent jamming.

[0039] Reference Figures 2-5 As shown in this embodiment: the axial height of the bottom section 15 is greater than the axial height of the converging section 12. A water inlet pipe 5 is fixedly installed on the inner wall of the bottom section 15 and below the drain pipe 4. The water inlet pipe 5 has a through structure, and the inner diameter of the top port of the water inlet pipe 5 is smaller than the inner diameter of the bottom port.

[0040] Reference Figures 1-5 As shown in this embodiment: the end of the top water inlet pipe 3 away from the top section 11 is connected to a double-pass pipe, and the top water inlet pipe 3 is connected to an external water supply device and a temporary water storage tank through two sets of interfaces of the double-pass pipe.

[0041] Reference Figures 1-5 As shown in this embodiment: the end of the backflush port away from the bottom section 15 is connected to another set of double-pass pipes, and the two sets of interfaces of the double-pass pipes are respectively connected to another set of external water supply equipment and temporary water storage tank.

[0042] Reference Figures 1-5 As shown in this embodiment: the end of the drain pipe 4 away from the bottom section 15 is connected to an external filter equipment, the side wall of the waist section 13 is hinged with a cover plate 7, and the corners of the cover plate 7 are all equipped with sealing elements. A discharge conveying system is set at the corresponding position on the outer wall of the cover plate 7, and the outer wall of multiple sets of receiving rings 25 is fitted with bearing rings 6.

[0043] Working principle: First, the bearing ring 6 to be cleaned is placed into the feed port of the top section 11. The bearing ring 6 slides onto the receiving ring 25 on the outer wall of the cone head 24. During the sliding process, a small amount of water is released through the flow control valve in the top water inlet pipe 3. The micro-vortex generated by the small amount of water lubricates the sliding bearing ring 6, reducing the probability of scratches on the bearing ring 6. Furthermore, because the outer diameter of the receiving ring 25 increases from top to bottom and the edges are fitted with silicone rings, the bearing ring 6 is stably supported and avoids hard contact, further preventing scratches on the surface of the bearing ring 6 during the initial placement process.

[0044] Meanwhile, the cone head 24 and multiple sets of bearing rings 25 with increasing outer diameters can be used for bearing rings 6 with different inner diameters, thus expanding the applicability of the equipment.

[0045] Secondly, the external water supply equipment is activated, and the cleaning water enters the top section 11 tangentially from the top inlet pipe 3. Since the top inlet pipe 3 is tangentially connected to the top section 11, the water forms a high-speed rotating vortex in the top section 11. When the vortex flows downward through the converging section 12, the cross-sectional area of ​​the flow channel gradually decreases because the inner diameter of the top of the converging section 12 is larger than the inner diameter of the bottom. The water flow velocity further increases. At the same time, the threads on the inner wall of the converging section 12 enhance the rotation intensity of the vortex, providing high-energy fluid for subsequent efficient cleaning and ensuring the impact force on dead corners such as the raceway groove.

[0046] Secondly, the high-speed swirling flow enters the cleaning interlayer space formed by the inner wall of the expansion section 14 and the outer wall of the cone 24. In this space, the swirling flow performs all-round non-contact flushing on the outer ring, inner ring, end face and raceway groove of the bearing ring 6 sleeved on the receiving ring plate 25. It uses fluid shear force to remove oil and debris, replacing the rigid brush in the existing bearing ring 6 cleaning equipment. It only uses water flow to perform low-damage cleaning on the inner ring of the bearing ring 6, reducing damage to the inner ring.

[0047] Meanwhile, the swirling impact vane 23 drives the cone seat 21 to rotate in the forward direction. The cone seat 21 cooperates with the spiral cavity 241 of the cone head 24 through the lifting rod 22 and the spiral pattern 221 (in the forward direction, the spiral pattern 221 and the inner wall of the spiral cavity 241 are locked). Therefore, the cone head 24 drives the bearing ring 6 to rotate together during the cleaning process. The rotating bearing ring 6 cooperates with the swirling flow in the cleaning interlayer space to form turbulence, which further enhances the cleaning intensity. By thoroughly solving the problem that traditional brushing methods are prone to damaging the inner ring and causing scratches, the impact of the cleaning process on the inner ring accuracy of the bearing ring 6 is reduced.

[0048] Next, the impurities generated during the cleaning process flow downwards with the swirling flow into the lower part of the expansion section 14. As the inner diameter of the expansion section 14 gradually increases, the flow velocity decreases, and the impurities are thrown towards the cylinder wall under the action of centrifugal force and discharged to the external filter equipment through the discharge pipe 4, so as to realize that cleaning and slag discharge are carried out simultaneously and to prevent secondary pollution.

[0049] Next, after cleaning is completed, the water inlet of the top water inlet pipe 3 is closed, and another set of external water supply equipment connected to the backwash port of the bottom section 15 is started. The cleaning water enters from the backwash port and flows upward. When the water passes through the water inlet pipe 5, since the inner diameter of the top port of the water inlet pipe 5 is smaller than the inner diameter of the bottom port, an accelerated jet is formed, which impacts the inverted conical surface at the bottom of the cone seat 21 and drives the cone seat 21 to rotate in the opposite direction. At the same time, the water flows upward into the cleaning interlayer space. The upward water flows through multiple sets of receiving rings 25 to push the cone head 24 upward (the surface area of ​​multiple sets of receiving rings 25 is large, and the interior of the cone head 24 is a hollow structure, so it has a certain buoyancy). Under the guidance of the spiral pattern 221 and the spiral cavity 241, it rotates and rises smoothly. The receiving rings 25 drive the bearing ring 6 to rise together to the height of the waist section 13.

[0050] Next, the cover plate 7 on the side wall of waist section 13 is opened, and the bearing ring 6 is discharged from the cover plate 7 under the push of the subsequent water flow. The bearing ring 6 is carried to the next process by the discharge conveyor system installed at the cover plate 7, completing the entire cleaning process. The entire discharge process also has no rigid contact, avoiding secondary damage.

[0051] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A bearing ring cleaning and decontamination device for bearing production, characterized in that, Includes a cylinder, wherein a support component is rotatably installed at the bottom axis of the inner wall of the cylinder, which together with the inner wall of the cylinder forms a cleaning interlayer space and is used for low-damage cleaning of the bearing ring; The cylinder is composed of a top section, a tapering section, a waist section, an expanding section, and a bottom section. The tapering section and the expanding section, as well as the top section and the bottom section, are symmetrical to each other. The inner diameter of the top port of the tapering section is larger than the inner diameter of the bottom port, and vice versa for the expanding section. The supporting assembly includes a cone seat rotatably mounted at the axial position inside the bottom section. A lifting rod is fixed at the axial position on the upper surface of the cone seat. Multiple sets of rotating blades are fixedly mounted in an equiangular array around the axis on the curved outer wall of the cone seat. A cone head is movably sleeved on the outer wall of the lifting rod. Multiple sets of receiving ring plates are fixed at equal intervals from top to bottom on the outer wall of the cone head. The top section has a top water inlet pipe fixed to its side wall for connecting to external cleaning water, and the bottom section has a drain pipe fixed to its curved outer wall below the cone base. The outer wall of the lifting rod is fixed with multiple sets of spiral patterns arranged in an equiangular array around its axis. A spiral cavity of matching size and shape is formed at the contact point between the cone head and the lifting rod and the spiral patterns. The outer wall of the cone head and the inner wall of the expanding section together form a cone-shaped cleaning interlayer space. A feed inlet is provided at the top of the top section, and a splash guard is sealed on the upper surface of the feed inlet. A backflush inlet is provided at the bottom of the bottom section for introducing external cleaning water. The top water inlet pipe is connected tangentially to the top section, and the central axis of the top water inlet pipe forms a certain angle with the tangent of the top section. Multiple sets of external cleaning water are fixed in an equiangular array on the inner wall of the contracting section. The thread has a swirling intensity; a suspension bracket is fixed at the axis of the inner wall of the bottom section, and the cone seat is rotatably installed at the center of the suspension bracket. The bottom of the cone seat is inverted cone shape, the cone head is cone-shaped as a whole, and the top is inserted into the waist section. The inside of the cone head is a hollow structure; the outer diameter of each set of receiving rings increases from top to bottom, and silicone sleeves are fitted on the corners of the receiving rings, and the corners of the silicone sleeves are rounded and chamfered; the axial height of the bottom section is greater than the axial height of the converging section, and a water inlet pipe is fixedly installed on the inner wall of the bottom section below the drain pipe. The water inlet pipe has a through structure, and the inner diameter of the top port of the water inlet pipe is smaller than the inner diameter of the bottom port.

2. The bearing ring cleaning and decontamination device for bearing production according to claim 1, characterized in that: The top water inlet pipe is connected to a set of double-pass pipes at one end away from the top section, and the top water inlet pipe is connected to an external water supply device and a temporary water storage tank through the two sets of interfaces of the double-pass pipes.

3. The bearing ring cleaning device for bearing production according to claim 2, characterized in that: Another set of double-pass pipes is installed at the end of the backflush port away from the bottom section, and the two sets of interfaces of the double-pass pipes are respectively connected to another set of external water supply equipment and temporary water storage tank.

4. The bearing ring cleaning and decontamination device for bearing production according to claim 1, characterized in that: The end of the pipe away from the bottom section is connected to an external slag filter. The side wall of the waist section is hinged with a cover plate, and the corners of the cover plate are all equipped with seals. A discharge conveying system is set at the corresponding position on the outer wall of the cover plate. The outer walls of multiple sets of receiving rings are fitted with bearing rings.

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