A multi-functional bearing

Abstract

The application belongs to the technical field of multi-functional bearing, and discloses a multi-functional bearing which comprises a bearing outer ring, a bearing retainer is fixedly connected in the bearing outer ring, a bearing ball is rotationally connected in the bearing retainer, the bearing ball is rotationally connected with the bearing outer ring, a bearing inner ring is rotationally connected with the bearing ball, a bearing rotating shaft is installed in the bearing inner ring, and symmetrically circumferentially arrayed shell fixing plates are fixedly connected on the bearing outer ring; the bearing rotating shaft and the cleaning shell and other structures are matched, the bearing inner ring is driven to rotate synchronously by the bearing rotating shaft, the rotating connecting plate is driven to rotate synchronously, the sliding wedge-shaped curved rod slides along the rotating connecting plate in the direction away from the bearing rotating shaft under the action of centrifugal force, the sliding wedge-shaped curved rod is in contact with the air pushing piston, the air pushing piston slides into the cleaning shell, and the air pressure in the cleaning shell is increased.

Description

Technical Field

[0001] This invention belongs to the field of multifunctional bearing technology, specifically a multifunctional bearing. Background Technology

[0002] Bearings are a crucial component in modern mechanical equipment. Their main function is to support rotating mechanical bodies and reduce the coefficient of friction of mechanical loads during transmission. Existing bearings mainly consist of an outer ring and an inner ring, an outer ball groove located inside the outer ring, an inner ball groove located outside the inner ring, and balls that roll between the outer and inner ball grooves.

[0003] During use, the balls in this bearing experience intense friction with the outer and inner rings as they roll within the outer and inner ball grooves. Over time, this friction causes the balls to shrink, increasing the gap between the outer and inner ball grooves. Applying lubricant to the balls reduces friction between them and the outer and inner rings. However, bearings are often used in dusty environments, and this dust accumulates on the lubricant. This dust forms abrasive particles between the balls and the inner and outer rings, causing wear on the rolling surfaces and reducing the bearing's lifespan. The increased dust also increases friction, making the bearing run unevenly, leading to increased heat and affecting machine operation. Furthermore, the increased dust makes the lubricant more viscous, reducing its lubricating effect. Summary of the Invention

[0004] To address the issues raised in the background section regarding the shrinkage of bearing balls due to friction between the inner and outer rings during operation, and the problem that while lubricating oil can increase friction between the balls and the inner and outer rings, it also leads to dust accumulation on the balls and lubricating oil. This dust can form abrasive particles between the balls and the inner and outer rings, causing wear on the rolling surfaces and reducing bearing life. Furthermore, increased dust can increase friction, hindering bearing operation, causing heat buildup, and affecting machine operation. Additionally, increased dust can thicken the lubricating oil, reducing its lubricating effect. Therefore, this invention provides a multifunctional bearing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional bearing, comprising a bearing outer ring, a bearing cage fixedly connected inside the bearing outer ring, bearing balls rotatably connected inside the bearing cage, the bearing balls rotatably connected to the bearing outer ring, an inner ring rotatably connected to the bearing balls, a bearing rotating shaft installed inside the bearing inner ring, and a symmetrically circumferentially arrayed outer shell fixing plate fixedly connected to the bearing outer ring, a cleaning outer shell fixedly connected to the outer shell fixing plate, and a pneumatic piston slidably connected through the cleaning outer shell.

[0006] Preferably, the cleaning housing has circumferentially arrayed air vents fixedly connected to one side near the outer ring of the bearing. A limiting sliding piston is slidably connected inside the air vents. The limiting sliding piston is slidably connected to the cleaning housing. A limiting sliding ring is slidably connected to the limiting sliding piston. The limiting sliding ring is fixedly connected to the cleaning housing. A second reset spring is provided between the limiting sliding ring and the limiting sliding piston.

[0007] Preferably, the limiting sliding ring has a through hole for gas flow, and the length of the sliding rod of the limiting sliding piston decreases sequentially from top to bottom.

[0008] Preferably, the diameter of the air outlet is the same as the distance between the outer ring and the inner ring of the bearing, and the center of the array of air outlets is coaxial with the centers of the outer ring and the inner ring of the bearing.

[0009] Preferably, a limiting sliding frame is fixedly connected to the side of the cleaning housing away from the outer ring of the bearing. The limiting sliding frame is slidably connected to the pneumatic piston. A first reset tension spring is provided between the limiting sliding frame and the cleaning housing. An air inlet is fixedly connected to the cleaning housing. A one-way valve for supplying gas flow into the cleaning housing is provided between the air inlet and the cleaning housing.

[0010] Preferably, a rotating connecting plate is fixedly connected to the inner ring of the bearing, and a sliding wedge-shaped crank is slidably connected through the rotating connecting plate. A first return spring is provided between the sliding wedge-shaped crank and the rotating connecting plate.

[0011] Preferably, the sliding wedge crank is provided with a wedge-shaped post, and the pneumatic piston is provided with a wedge-shaped sliding post, wherein the wedge-shaped post of the sliding wedge crank and the wedge-shaped sliding post of the pneumatic piston are in decompression engagement.

[0012] Preferably, a circumferentially arrayed lubricating piston is slidably connected through the inner ring of the bearing, and a third return spring is provided between the lubricating piston and the inner ring of the bearing.

[0013] Preferably, the third reset spring is provided with a piston shaft, and the piston shaft of the third reset spring is made of a flexible material.

[0014] Preferably, the inner ring of the bearing has a piston chamber for sliding the lubricating piston, the piston chamber of the inner ring of the bearing is filled with lubricating oil, the lubricating piston is in compression fit with the bearing balls, and the tension of the third reset spring is less than the centrifugal force of the inner ring of the bearing during use.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention utilizes a combination of a bearing rotating shaft and a cleaning housing. The bearing rotating shaft drives the inner ring of the bearing to rotate synchronously, which in turn drives the rotating connecting plate to rotate synchronously. Under centrifugal force, the sliding wedge-shaped crank slides away from the bearing rotating shaft along the rotating connecting plate, bringing it into contact with the pneumatic piston. This causes the pneumatic piston to slide into the cleaning housing, increasing the gas pressure inside. The sliding of the pneumatic piston further compresses the limiting sliding piston towards the outer ring of the bearing, thus breaking the seal between the limiting sliding piston and the air outlet. This allows the gas inside the cleaning housing to be ejected through the gap between the limiting sliding ring and the limiting sliding piston and the air outlet into the bearing balls between the outer and inner rings of the bearing, blowing away the dust adhering to the bearing balls. This reduces the amount of dust adhering to the bearing balls, preventing dust from accelerating the consumption of lubricating oil and increasing the viscosity of the lubricating oil, thereby reducing the bearing's service life.

[0017] This invention, through the coordinated arrangement of the bearing inner ring and lubrication piston, ensures that as the rotational speed of the bearing inner ring increases, the centrifugal force on the lubrication piston within the bearing inner ring increases, exceeding the tension of the second return spring. This causes the lubrication piston to slide outward from the bearing inner ring, bringing it into contact with the bearing balls. The lubricating oil adsorbed on the lubrication piston and within the piston cavity between the bearing inner ring and the bearing inner ring is then delivered to the bearing balls through pressure contact. Simultaneously, as the lubrication piston slides outward from the bearing inner ring, it further compresses the lubricating oil between the bearing inner ring and the lubrication piston, increasing the pressure on the lubricating oil between them. This ensures a continuous supply of lubricating oil from the lubrication piston to the bearing balls, preventing increased lubricating oil consumption on the bearing balls due to the increased rotational speed of the bearing inner ring. By replenishing the lubricating oil to the bearing balls through the lubrication piston, the service life of the bearing is extended. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a left view of the structure of the present invention;

[0020] Figure 3 This is an exploded view of the cleaning structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the drive structure connection of the present invention;

[0022] Figure 5 This is a schematic diagram of the cleaning structure shell of the present invention;

[0023] Figure 6 This is a schematic diagram of the explosion of the cleaning structure shell of the present invention;

[0024] Figure 7 This is an exploded schematic diagram of the gas outlet piston structure of the present invention;

[0025] Figure 8 This is a half-sectional schematic diagram of the lubrication structure of the present invention.

[0026] In the diagram: 100, bearing outer ring; 101, bearing inner ring; 102, bearing ball; 103, bearing cage; 200, bearing rotating shaft; 300, rotating connecting plate; 301, sliding wedge-shaped crank; 302, return spring; 400, cleaning housing; 401, housing fixing plate; 402, housing air inlet; 403, air-push piston; 404, limiting sliding frame; 405, first return tension spring; 406, limiting sliding ring; 407, limiting sliding piston; 408, second return tension spring; 409, air outlet cleaning port; 500, lubrication piston; 501, third return tension spring. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 8 As shown, the present invention provides a multifunctional bearing, including a bearing outer ring 100, a bearing cage 103 fixedly connected inside the bearing outer ring 100, bearing balls 102 rotatably connected inside the bearing cage 103, the bearing balls 102 rotatably connected to the bearing outer ring 100, a bearing inner ring 101 rotatably connected to the bearing balls 102, a bearing rotating shaft 200 installed inside the bearing inner ring 101, and a symmetrically circumferentially arrayed outer shell fixing plate 401 fixedly connected to the bearing outer ring 100. A cleaning outer shell 400 is fixedly connected to the outer shell fixing plate 401, and a pneumatic piston 403 is slidably connected through the cleaning outer shell 400.

[0029] A circumferentially arrayed air vents 409 are fixedly connected to the side of the cleaning housing 400 near the outer ring 100 of the bearing. A limiting sliding piston 407 is slidably connected inside the air vents 409. The limiting sliding piston 407 is slidably connected to the cleaning housing 400 through it. A limiting sliding ring 406 is slidably connected to the limiting sliding piston 407. The limiting sliding ring 406 is fixedly connected to the cleaning housing 400. A second reset spring 408 is provided between the limiting sliding ring 406 and the limiting sliding piston 407.

[0030] The limiting sliding ring 406 has a through hole for gas flow, and the length of the sliding rod of the limiting sliding piston 407 decreases from top to bottom.

[0031] The diameter of the air outlet 409 is the same as the distance between the outer ring 100 and the inner ring 101 of the bearing, and the center of the array of the air outlet 409 is coaxial with the center of the outer ring 100 and the inner ring 101 of the bearing.

[0032] A limiting sliding frame 404 is fixedly connected to the side of the cleaning housing 400 away from the outer ring 100 of the bearing. The limiting sliding frame 404 is slidably connected to the pneumatic piston 403. A first reset tension spring 405 is provided between the limiting sliding frame 404 and the cleaning housing 400. An air inlet 402 is fixedly connected to the cleaning housing 400. A one-way valve for supplying gas flow into the cleaning housing 400 is provided between the air inlet 402 and the cleaning housing 400.

[0033] A rotating connecting plate 300 is fixedly connected to the inner ring 101 of the bearing. A sliding wedge-shaped crank 301 is slidably connected through the rotating connecting plate 300. A first return spring 302 is provided between the sliding wedge-shaped crank 301 and the rotating connecting plate 300.

[0034] A wedge-shaped column is provided on the sliding wedge-shaped crank 301, and a wedge-shaped sliding column is provided on the pneumatic piston 403. The wedge-shaped column of the sliding wedge-shaped crank 301 and the wedge-shaped sliding column of the pneumatic piston 403 are decompressed and engaged.

[0035] The above scheme is adopted as follows: the bearing inner ring 101 is rotated by the bearing rotating shaft 200, so that the centrifugal force on the sliding wedge-shaped crank 301 is greater than the elastic force of the first return spring 302, thereby squeezing the first return spring 302. This causes the sliding wedge-shaped crank 301 to slide along the rotating connecting plate 300 away from the bearing rotating shaft 200, thereby causing the sliding wedge-shaped crank 301 to contact the air-push piston 403 and squeeze the air-push piston 403 to slide into the cleaning shell 400. Through the circumferential array of air outlets 409 and the limiting sliding piston 407, the air-push piston 403 gradually squeezes the limiting sliding piston 407, so that the gas in the cleaning shell 400 is blown from top to bottom through the gap between the limiting sliding piston 407 and the air outlet 409 towards the bearing balls 102 between the bearing outer ring 100 and the bearing inner ring 101, thereby blowing out the cooperating gas, blowing away the dust attached to the bearing balls 102, and preventing the dust from re-attaching.

[0036] like Figure 8 As shown, a circumferentially arrayed lubrication piston 500 is slidably connected through the inner ring 101 of the bearing, and a third reset spring 501 is provided between the lubrication piston 500 and the inner ring 101 of the bearing.

[0037] The third reset spring 501 is equipped with a piston shaft, which is made of a flexible material.

[0038] The inner ring 101 of the bearing has a piston chamber for the lubrication piston 500 to slide in. The piston chamber of the inner ring 101 of the bearing is filled with lubricating oil. The lubrication piston 500 is pressed and engaged with the bearing ball 102. The tension of the third return spring 501 is less than the centrifugal force of the inner ring 101 rotating during use.

[0039] The above solution works as follows: When the inner ring 101 of the bearing rotates too fast, it will accelerate the consumption of lubricating oil on the bearing balls 102. The increased rotation of the inner ring 101 of the bearing will increase the centrifugal force on the lubricating piston 500, causing the lubricating piston 500 to slide outward from the inner ring 101 of the bearing, while squeezing the lubricating oil in the piston cavity between the lubricating piston 500 and the inner ring 101 of the bearing. Through the squeezing contact between the lubricating piston 500 and the bearing balls 102, the lubricating oil on the lubricating piston 500 will be attached to the bearing balls 102. At the same time, after the squeezed lubricating oil is consumed by the lubricating oil on the lubricating piston 500, the lubricating piston 500 will be replenished again to ensure that the lubricating oil on the bearing balls 102 is sufficient.

[0040] Working principle and usage process of this invention:

[0041] During bearing use, dust may accumulate on the bearing balls 102 between the outer ring 100 and the inner ring 101. As the bearing shaft 200 rotates, the inner ring 101, which rotates with the shaft, rotates synchronously. This, in turn, causes the connecting plate 300 to rotate synchronously, which in turn causes the sliding wedge-shaped crank 301 to rotate synchronously. This causes the sliding wedge-shaped crank 301 to slide away from the bearing shaft 200 along the connecting plate 300 under centrifugal force, compressing the first return spring 302. This brings the sliding wedge-shaped crank 301 into contact with the pneumatic piston 403. The wedge-shaped compression between the sliding wedge-shaped crank 301 and the pneumatic piston 403 causes the pneumatic piston 403 to slide towards the cleaning housing 400, thus compressing the gas inside the cleaning housing 400 and increasing the gas pressure within the cleaning housing 400. As the pneumatic piston 403 slides into the cleaning housing 400, it compresses the limiting sliding piston 407 to slide in the same direction. This causes the sealed piston structure between the limiting sliding piston 407 and the air outlet 409 to become open, allowing the gas inside the cleaning housing 400 to be ejected outward through the gap between the limiting sliding piston 407 and the air outlet 409. This gas is then sprayed into the gap between the outer ring 100 and the inner ring 101 of the bearing, blowing away the dust adhering to the bearing balls 102. Since the length of the limiting sliding piston 407 decreases from top to bottom, the gas blown out from the gap between the limiting sliding piston 407 and the air outlet 409 is blown out from top to bottom. At the same time, due to the circumferential array arrangement of the cleaning housing 400, the inner ring 101 of the bearing drives the sliding wedge crank 301 to rotate, sequentially blowing away the dust adhering to the bearing balls 102 between the inner ring 101 and the outer ring 101 of the bearing.

[0042] As the inner ring 101 of the bearing drives the rotating connecting plate 300 to rotate, the sliding wedge-shaped crank 301 contacts and separates from the upper pneumatic piston 403. Under the tension of the first reset spring 405, the pneumatic piston 403 slides and resets along the limiting sliding frame 404 in a direction away from the outer ring 100 of the bearing. Then, under the tension of the second reset spring 408, the limiting sliding piston 407 slides and resets in a direction away from the outer ring 100 of the bearing. Then, the limiting sliding piston 407 and the air outlet cleaning port 409 return to a sealed state. Then, under the action of atmospheric pressure, the outside air is supplied to the cleaning housing 400 through the one-way valve between the housing air inlet 402 and the cleaning housing 400.

[0043] As the bearing shaft 200 drives the inner ring 101 of the bearing to rotate, lubricating oil is provided on the bearing balls 102 rotating between the outer ring 100 and the inner ring 101, reducing friction between the bearing balls 102 and the outer and inner rings. As the rotational speed of the bearing shaft 200 increases, the consumption of lubricating oil on the bearing balls 102 also increases. Consequently, when the rotational speed of the bearing shaft 200 is relatively high, the centrifugal force on the third return spring 501 inside the inner ring 101 increases to exceed the tension of the third return spring 501, thus lubricating the piston. 500 slides outward from the inner ring 101 of the bearing until it comes into contact with and is squeezed by the bearing ball 102, so that the lubricating oil on the lubricating piston 500 adheres to the bearing ball 102. Since the piston cavity between the lubricating piston 500 and the inner ring 101 of the bearing is filled with lubricating oil, under the action of centrifugal force and the squeezing of the lubricating piston 500, the lubricating oil in the piston cavity between the lubricating piston 500 and the inner ring 101 of the bearing is squeezed and continuously delivered to the end of the lubricating piston 500 outside the inner ring 101 of the bearing, so that the bearing ball 102 is always replenished with lubricating oil.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional bearing comprising a bearing outer race (100) characterized by: The bearing outer ring (100) is fixedly connected with a bearing retainer (103) inside, the bearing retainer (103) is rotatably connected with a bearing ball (102) inside, the bearing ball (102) is rotatably connected with the bearing outer ring (100), the bearing ball (102) is rotatably connected with a bearing inner ring (101), the bearing inner ring (101) is installed with a bearing rotating shaft (200) inside, the bearing outer ring (100) is fixedly connected with symmetrically circumferentially arrayed housing fixing plates (401), the housing fixing plates (401) are fixedly connected with a cleaning housing (400), the cleaning housing (400) is slidably connected with a gas push piston (403) inside. The cleaning housing (400) is fixedly connected with circumferentially arrayed gas outlet cleaning ports (409) on one side close to the bearing outer ring (100), the gas outlet cleaning ports (409) are slidably connected with limit sliding pistons (407) inside, the limit sliding pistons (407) are slidably connected with the cleaning housing (400), the limit sliding pistons (407) are slidably connected with limit sliding rings (406) on the limit sliding pistons (407), the limit sliding rings (406) are fixedly connected with the cleaning housing (400), and the limit sliding rings (406) and the limit sliding pistons (407) are provided with second return tension springs (408) therebetween. The bearing inner ring (101) is fixedly connected with a rotating connecting plate (300), the rotating connecting plate (300) is slidably connected with a sliding wedge-shaped curved rod (301) penetrating therethrough, and the sliding wedge-shaped curved rod (301) and the rotating connecting plate (300) are provided with first return springs (302) therebetween. The sliding wedge-shaped curved rod (301) is provided with a wedge-shaped column, the gas push piston (403) is provided with a wedge-shaped sliding column, and the wedge-shaped column of the sliding wedge-shaped curved rod (301) is in extrusion fit with the wedge-shaped sliding column of the gas push piston (403). The bearing rotating shaft drives the bearing inner ring to rotate synchronously, and then drives the rotating connecting plate to rotate synchronously, so that the sliding wedge-shaped curved rod slides along the rotating connecting plate in the direction away from the bearing rotating shaft under the action of centrifugal force, and then the sliding wedge-shaped curved rod contacts the gas push piston, the gas push piston slides into the cleaning housing, the gas pressure in the cleaning housing is increased, the limit sliding piston is extruded to slide in the direction of the bearing outer ring through the sliding of the gas push piston.

2. The multi-functional bearing of claim 1, wherein: The limit sliding ring (406) is provided with a through hole for gas circulation, and the sliding rod length of the limit sliding piston (407) is shortened from top to bottom.

3. The multi-functional bearing of claim 1, wherein: The diameter of the gas outlet cleaning port (409) is the same as the distance between the bearing outer ring (100) and the bearing inner ring (101), and the array center of the gas outlet cleaning port (409) is coaxial with the center of the bearing outer ring (100) and the bearing inner ring (101).

4. The multi-functional bearing of claim 1, wherein: The cleaning shell (400) is fixedly connected with a limiting sliding frame (404) on the side away from the bearing outer ring (100), the limiting sliding frame (404) is in sliding connection with the air push piston (403), a first reset tension spring (405) is arranged between the limiting sliding frame (404) and the cleaning shell (400), the cleaning shell (400) is fixedly connected with a shell air inlet (402), and a one-way valve for gas flowing into the cleaning shell (400) is arranged between the shell air inlet (402) and the cleaning shell (400).

5. The multi-functional bearing of claim 1, wherein: The bearing inner ring (101) is in sliding connection with a circumferentially arrayed lubricating piston (500) penetratingly arranged in the bearing inner ring (101), and a third reset tension spring (501) is arranged between the lubricating piston (500) and the bearing inner ring (101).

6. The multi-functional bearing of claim 5, wherein: The third reset tension spring (501) is provided with a piston shaft, and the piston shaft of the third reset tension spring (501) is made of flexible material.

7. The multi-functional bearing of claim 6, wherein: The bearing inner ring (101) is provided with a piston cavity for the lubricating piston (500) to slide, the piston cavity of the bearing inner ring (101) is filled with lubricating oil, the lubricating piston (500) is in extrusion fit with the bearing ball (102), and the tension of the third reset tension spring (501) is smaller than the centrifugal force of the bearing inner ring (101) rotating in use.

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