阅读说明：本技术 新型滚动轴承 (Novel rolling bearing ) 是由 李小刚 于 2020-03-27 设计创作，主要内容包括：本发明公开了一种新型滚动轴承,包括内圈、外圈和保持架,所述保持架上开设有若干个用于容置滚子的兜孔,所述兜孔之间通过梁体连接,其特征在于：所述兜孔内壁上开设有开槽,所述开槽内设置有活动块,所述活动块一端与开槽内壁固定连接,另一端设置有刮脂棉,所述活动块由形状记忆合金制成,所述活动块在第一温度下存在第一形态,所述活动块在第二温度下存在第二形态,所述活动块在第一形态下伸展使得刮脂棉露出开槽与兜孔内滚子接触,所述活动块在第二形态下收缩使得刮脂棉缩回开槽。避免轴承内油脂过多导致轴承内部出现抛脂、漏脂的现象,进一步的确保了轴承使用寿命不会因为油脂损耗而降低。(The invention discloses a novel rolling bearing, which comprises an inner ring, an outer ring and a retainer, wherein the retainer is provided with a plurality of pockets for accommodating rollers, and the pockets are connected through a beam body, and the novel rolling bearing is characterized in that: the improved grease scraping device is characterized in that a groove is formed in the inner wall of the pocket hole, a movable block is arranged in the groove, one end of the movable block is fixedly connected with the inner wall of the groove, grease scraping cotton is arranged at the other end of the movable block, the movable block is made of shape memory alloy, the movable block has a first shape at a first temperature, a second shape at a second temperature is arranged on the movable block, the movable block extends and expands under the first shape to enable the grease scraping cotton to expose the groove and contact with a roller in the pocket hole, and the movable block contracts under the second shape to enable the grease scraping cotton to retract and open the groove. The phenomenon that grease is thrown and leaked inside the bearing due to excessive grease in the bearing is avoided, and the service life of the bearing is further ensured not to be reduced due to grease loss.)

1. The utility model provides a novel rolling bearing, includes inner circle, outer lane and holder, set up the pocket hole that a plurality of is used for the holding roller on the holder, connect its characterized in that through the roof beam body between the pocket hole: the improved grease scraping device is characterized in that a groove is formed in the inner wall of the pocket hole, a movable block is arranged in the groove, one end of the movable block is fixedly connected with the inner wall of the groove, grease scraping cotton is arranged at the other end of the movable block, the movable block is made of shape memory alloy, the movable block has a first shape at a first temperature, a second shape at a second temperature is arranged on the movable block, the movable block extends and expands under the first shape to enable the grease scraping cotton to expose the groove and contact with a roller in the pocket hole, and the movable block contracts under the second shape to enable the grease scraping cotton to retract and open the groove.

2. A novel rolling bearing according to claim 1, characterized in that: the one side of scraping the fat cotton and roller contact is for scraping the fat face, the one side that scrapes the fat cotton and be connected with the movable block is for connecting the face, it is greater than the connection face to scrape fat face diameter.

3. A novel rolling bearing according to claim 2, characterized in that: the grease scraping surface is in an arc surface arrangement, the arc surface radian is matched with the roller surface radian, and the grease scraping surface is attached to the roller surface to realize uniform coating of grease scraping cotton on the roller surface grease.

4. A novel rolling bearing according to claim 2, characterized in that: the grease scraping surface is connected with the connecting surface through a smooth curved surface, and a gap is reserved between the movable block and the groove.

5. A novel rolling bearing according to claim 1, characterized in that: the inner ring is characterized in that a sliding groove is formed in the inner wall of the outer ring, a tensioning plate extends towards the sliding groove from the outer wall of the inner ring, the tensioning plate is in clearance fit with the inner wall of the sliding groove, and the tensioning plate is arranged on two sides of the sliding groove.

6. A novel rolling bearing according to claim 5, characterized in that: the tension plate is also made of shape memory alloy, the tension plate has a third shape at the first temperature, the tension plate has a fourth shape at the second temperature, the tension plate contracts and is in clearance fit with the inner wall of the chute in the third shape, and the tension plate extends and is in interference fit with the inner wall of the chute in the fourth shape.

7. A novel rolling bearing according to claim 1, characterized in that: the outer ring extends towards the inner ring to form a first sealing plate, the inner ring extends towards the outer ring to form a second sealing plate, the first sealing plate is arranged in a clearance fit mode with the outer wall of the inner ring, the second sealing plate is arranged in a clearance fit mode with the inner wall of the outer ring, the first sealing plate and the second sealing plate are arranged in parallel, and the first sealing plate and the second sealing plate are arranged on the outer side of the tensioning plate.

Technical Field

The invention relates to the technical field of bearings, in particular to a novel rolling bearing.

Background

A rolling bearing is a precise mechanical element that reduces friction loss by changing sliding friction between a running shaft and a shaft seat into rolling friction. The rolling bearing generally comprises four parts, namely an inner ring, an outer ring, a rolling body and a retainer, wherein the inner ring is used for being matched with a shaft and rotating together with the shaft; the outer ring is matched with the bearing seat to play a supporting role; the rolling bodies are uniformly distributed between the inner ring and the outer ring by virtue of the retainer, and the shape, size and number of the rolling bodies directly influence the service performance and service life of the rolling bearing; the retainer can enable the rolling bodies to be uniformly distributed and guide the rolling bodies to rotate to play a lubricating role. The common rolling bearing is filled with grease, friction loss generated when the roller is used is reduced, but grease is thrown and leaked because the grease is excessive to cause the bearing to have the integral rotating speed reduction, the working efficiency of the bearing is influenced, and the grease is rolled in the bearing to cause uneven grease distribution on the surface of the roller, the friction loss received on the surface of the roller is inconsistent, the service life of the roller is prolonged, a high-rotating-speed bearing is needed because of a specific environment, the sealing performance of the bearing is poor, the grease is leaked, after the bearing is carried and rotated, the grease is leaked into an external device, the problem is caused by oil erosion in the device.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a novel rolling bearing, which aims to solve the problem that the grease on the surface of a roller is unevenly distributed due to the fact that the grease rolls in the bearing in the prior art.

In order to achieve the purpose, the invention provides a novel roller bearing which comprises an inner ring, an outer ring and a retainer, wherein the retainer is provided with a plurality of pockets for containing rollers, the pockets are connected through a beam body, the inner walls of the pockets are provided with slots, movable blocks are arranged in the slots, one ends of the movable blocks are fixedly connected with the inner walls of the slots, the other ends of the movable blocks are provided with grease scraping cotton, the movable blocks are made of shape memory alloy, the movable blocks have a first shape at a first temperature, the movable blocks have a second shape at a second temperature, the movable blocks stretch under the first shape to enable the grease scraping cotton to be exposed out of the slots to be contacted with the rollers in the pockets, and the movable blocks contract under the second shape to enable the grease scraping cotton to retract into the slots.

The technical scheme is adopted, and the method has the advantages that: the shape memory alloy is nickel-titanium memory alloy, the variable phase temperature range is 30-45 degrees, the variable phase temperature is a first temperature, the second temperature is below the variable phase temperature range, when the bearing operates, the internal temperature can reach more than 30 degrees, when the internal temperature of the bearing reaches more than 30 degrees, the movable block reaches the variable phase temperature and starts to deform, the movable block starts to extend under the first state, the movable block extends towards the opening of the slot to drive the grease scraping cotton to be exposed out of the slot to realize the contact between the grease scraping cotton and the roller in the pocket hole, the grease scraping cotton uniformly coats grease on the surface of the roller, the phenomenon that grease is thrown and leaked inside the bearing due to excessive grease in the bearing is avoided, the service life of the bearing is further ensured not to be reduced due to grease loss, the grease on the surface of the roller is uniformly distributed, and the problem that the friction loss of the roller due to uneven grease on the surface of the roller is avoided, further guarantee that roller life can not receive the influence, when bearing inside temperature drops to below 30, bearing inside temperature is the second temperature, and the movable block begins to shrink under the second form, drives the fluting of frizing cotton withdrawal, guarantees that the phenomenon of oil drip appears in the inside of bearing after the stop work.

The invention further provides that: the one side of scraping the fat cotton and roller contact is for scraping the fat face, the one side that scrapes the fat cotton and be connected with the movable block is for connecting the face, it is greater than the connection face to scrape fat face diameter.

The technical scheme is adopted, and the method has the advantages that: the diameter of the grease scraping surface is larger than that of the connecting surface, so that the range of scraping the surface grease of the roller by the grease scraping surface is enlarged, the surface grease of the roller can be better coated, and the phenomenon that grease is thrown and leaked inside the bearing due to excessive grease in the bearing is avoided.

The invention further provides that: the grease scraping surface is in an arc surface arrangement, the arc surface radian is matched with the roller surface radian, and the grease scraping surface is attached to the roller surface to realize uniform coating of grease scraping cotton on the roller surface grease.

The technical scheme is adopted, and the method has the advantages that: the cambered surface setting is personally submitted in the frizing for the frizing face can be better with roller surface contact, make the frizing face can be with more even of roller surface grease coating.

The invention further provides that: the grease scraping surface is connected with the connecting surface through a smooth curved surface, and a gap is reserved between the movable block and the groove.

The technical scheme is adopted, and the method has the advantages that: scrape fat face and be the smooth curved surface between being connected, there is the clearance between movable block and the fluting, make when scraping the fat cotton at coating roller surface, the unnecessary grease in roller surface is scraped by the fat cotton and is driven to the clearance between movable block and the fluting, unnecessary grease is saved in the clearance between movable block and the fluting, can fully lubricate the fat cotton of scraping when scraping the fat cotton coating, and avoid in the bearing unnecessary grease because the bearing rotates and produce the phenomenon of throwing fat or leaking the fat, further avoid the bearing because the grease loss problem leads to bearing life to descend.

The invention further provides that: the inner ring is characterized in that a sliding groove is formed in the inner wall of the outer ring, a tensioning plate extends towards the sliding groove from the outer wall of the inner ring, the tensioning plate is in clearance fit with the inner wall of the sliding groove, and the tensioning plate is arranged on two sides of the sliding groove.

The technical scheme is adopted, and the method has the advantages that: the tension plate is in clearance fit with the inner wall of the sliding groove, so that the sealing performance of the bearing is improved, the possibility of leakage of grease is reduced, and the possibility of external impurities entering the inside of the bearing is reduced.

The invention further provides that: the tension plate is also made of shape memory alloy, the tension plate has a third shape at the first temperature, the tension plate has a fourth shape at the second temperature, the tension plate contracts and is in clearance fit with the inner wall of the chute in the third shape, and the tension plate extends and is in interference fit with the inner wall of the chute in the fourth shape.

The technical scheme is adopted, and the method has the advantages that: the tension plate is also supported by the shape memory alloy and is made of nickel-titanium memory alloy, the phase change temperature of the tension plate ranges from 30 degrees to 45 degrees, the phase-change temperature is a first temperature, the range of the phase-change temperature is a second temperature, when the bearing runs, the internal temperature of the bearing can reach more than 30 degrees, when the internal temperature of the bearing reaches more than 30 degrees, the tension plate reaches the phase-change temperature and begins to deform, the tension plate contracts and is in clearance fit with the inner wall of the chute in the third state, the friction torque generated between the tension plate and the chute when the bearing operates is avoided, the rotating speed of the bearing is ensured not to be influenced, when the bearing stops working, when the internal temperature of the bearing is reduced to be below 30 degrees, the internal temperature of the bearing is the second temperature, the tensioning plate extends under the fourth state and is in interference fit with the inner wall of the sliding groove, the bearing is integrally sealed at the moment, grease in the bearing is prevented from leaking out, and further external sundries are prevented from entering the bearing to damage the bearing.

The invention further provides that: the outer ring extends towards the inner ring to form a first sealing plate, the inner ring extends towards the outer ring to form a second sealing plate, the first sealing plate is arranged in a clearance fit mode with the outer wall of the inner ring, the second sealing plate is arranged in a clearance fit mode with the inner wall of the outer ring, the first sealing plate and the second sealing plate are arranged in parallel, and the first sealing plate and the second sealing plate are arranged on the outer side of the tensioning plate.

The technical scheme is adopted, and the method has the advantages that: first closing plate and inner circle outer wall clearance fit set up, and second closing plate and outer lane inner wall clearance fit set up, and the leakproofness of further assurance bearing prevents that the inside grease of bearing from leaking, also prevents that outside debris from entering into and damaging the bearing in the bearing.

Drawings

FIG. 1 is a three-dimensional view of a cage according to the present invention;

FIG. 2 is a cross-sectional view of the cage of the present invention;

FIG. 3 is a sectional view showing the working state of the cage according to the present invention;

FIG. 4 is a sectional view of the retainer of the present invention in a non-operating state;

FIG. 5 is a cross-sectional view of the present invention with the cage removed;

fig. 6 is an operation state diagram of a portion a in fig. 5.

Detailed Description

The invention provides a novel rolling bearing, which comprises an inner ring 1, an outer ring 2 and a retainer 3, wherein the retainer 3 is provided with a plurality of pockets 31 for accommodating rollers, the pockets 31 are connected through a beam body 32, the inner wall of each pocket 31 is provided with a notch 311, a movable block 312 is arranged in each notch 311, one end of each movable block 312 is fixedly connected with the inner wall of each notch 311, the other end of each movable block 312 is provided with grease scraping cotton 4, each movable block 312 is made of a shape memory alloy, each movable block 312 has a first shape at a first temperature, each movable block 312 has a second shape at a second temperature, the movable blocks 312 extend under the first shape to enable the grease scraping cotton 4 to be exposed out of the notches 311 to be contacted with rollers in the pockets 31, the movable blocks 312 contract under the second shape to enable the grease scraping cotton 4 to retract into the notches 311, and one surface of the grease scraping cotton 4 contacted with the rollers is a grease scraping surface 41, the one side that the fat scraping cotton 4 is connected with the movable block 312 is for connecting face 42, the fat scraping face 41 diameter is greater than and is connected face 42, the fat scraping face 41 is the cambered surface setting, cambered surface radian and roller surface radian looks adaptation, the fat scraping face 41 realizes the even coating of fat scraping cotton 4 to roller surface grease with the laminating of roller surface, be smooth curved surface between fat scraping face 41 and the connection face 42 and be connected, there is the clearance between movable block 312 and the fluting 311, the spout 21 has been seted up on 2 inner walls in outer lane, 1 outer wall of inner circle has the tight board 11 of rising towards spout 21 extension, the tight board 11 of rising and the clearance fit of spout 21 inner wall, the tight board 11 of rising sets up in spout 21 both sides, the tight board 11 of rising also is made by shape memory alloy, the tight board 11 of rising exists the third form under first temperature, the tight board 11 of rising exists the fourth form under the second temperature, the tension plate 11 contracts in the third state and is in clearance fit with the inner wall of the sliding groove 21, the tension plate 11 extends in the fourth state and is in interference fit with the inner wall of the sliding groove 21, the outer ring 2 extends towards the inner ring 1 to form a first sealing plate 22, the inner ring 1 extends towards the outer ring 2 to form a second sealing plate 12, the first sealing plate 22 is in clearance fit with the outer wall of the inner ring 1, the second sealing plate 12 is in clearance fit with the inner wall of the outer ring 2, the first sealing plate 22 and the second sealing plate 12 are arranged in parallel, and the first sealing plate 22 and the second sealing plate 12 are arranged on the outer side of the tension plate 11.

When the bearing starts to operate, the internal temperature of the bearing can reach more than 30 degrees, when the internal temperature of the bearing reaches more than 30 degrees, the movable block 312 reaches the phase-change temperature and starts to deform, the movable block 312 starts to extend under the first state, the movable block 312 extends towards the opening of the open slot 311 to drive the grease scraping cotton 4 to be exposed out of the open slot 311 to realize the contact between the grease scraping cotton 4 and the roller in the pocket 31, the grease scraping cotton 4 coats grease on the surface of the roller, the tension plate 11 starts to deform after reaching the phase-change temperature, the tension plate 11 contracts under the third state and is in clearance fit with the inner wall of the chute 21, when the internal temperature of the bearing is reduced to below 30 degrees, the internal temperature of the bearing is the second temperature, the movable block 312 starts to contract in the second state, the grease scraping cotton 4 is driven to retract into the open slot 311, the phenomenon that oil drips in the bearing after the work is stopped is ensured, and the tensioning plate 11 extends in the fourth state and is in interference fit with the inner wall of the sliding slot 21.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.