CN220134429U - Bearing - Google Patents

Abstract

The utility model discloses a bearing, relates to the technical field of bearings, and aims to solve the technical problems that in the prior art, disassembly is inconvenient and a sealing structure is unstable; the bearing comprises two groups of bearing outer rings, two groups of bearing inner rings and two groups of dust covers, wherein the two groups of dust covers are arranged between the bearing outer rings and the bearing inner rings, mounting grooves are formed in the side walls of the bearing outer rings, which are close to the inner edges, of the bearing outer rings, fixing grooves are formed in the mounting grooves, the dust covers are respectively arranged in the mounting grooves, fixing pins corresponding to the fixing grooves are arranged on one sides of the dust covers, fixing blocks are arranged on the side walls of the bearing outer rings, and fixing openings are formed in the dust covers; the bearing can firmly fix the dust cover under the condition of convenient disassembly by arranging the fixing groove, the fixing pin, the mounting groove and the fixing opening.

Description

Bearing

Technical Field

The utility model belongs to the technical field of bearings, and particularly relates to a bearing.

Background

Nowadays, a bearing is an important part in modern mechanical equipment, and its main function is to support mechanical rotator, reduce its coefficient of friction in the motion process to guarantee its gyration precision, current bearing mostly opens the style structure, and the roller exposes outside when using, and the dust easily enters into in the bearing and produces the influence to the roller, easily influences the result of use of bearing, generally in order to avoid the dust to enter into in the bearing, generally can add the dust guard at bearing both ends.

At present, the utility model patent with the patent number of CN217814581U discloses a bearing, which relates to the field of bearing dust prevention and comprises a bearing outer ring and a bearing inner ring, wherein the bearing outer ring is positioned outside the bearing inner ring, dust-proof sealing plates are arranged on the outer surfaces of the two ends of the bearing outer ring and the bearing inner ring, and reinforcing blocks are arranged on the outer walls of the dust-proof sealing plates; the dustproof sealing plate is fixed by the fixing adhesive layer and the reinforcing block, and the service life of the fixing adhesive layer can lead to unstable sealing structure of the dustproof sealing plate when the dustproof sealing plate is inconvenient to disassemble.

Disclosure of Invention

(1) Technical problem to be solved

Aiming at the defects of the prior art, the utility model aims to provide a bearing which aims to solve the technical problems that the bearing is inconvenient to disassemble and the sealing structure is unstable in the prior art.

(2) Technical proposal

In order to solve the technical problems, the utility model provides a bearing, which comprises a bearing outer ring, a bearing inner ring and a dust cover, wherein the bearing outer ring is arranged in the bearing inner ring, the dust cover is arranged into two groups, the two groups of dust covers are respectively arranged on two sides of the bearing outer ring, the two groups of dust covers are respectively arranged between the bearing outer ring and the bearing inner ring, mounting grooves are respectively formed on two sides of the bearing outer ring close to the inner edges, fixing grooves are respectively formed in the two groups of mounting grooves, fixing pins are respectively arranged on one sides of the two groups of dust covers close to the bearing outer ring, the fixing pins are arranged in the fixing grooves, fixing blocks are respectively arranged on two sides of the bearing outer ring close to the inner edges, and fixing openings corresponding to the fixing blocks are respectively formed in the dust cover.

When using this technical scheme's bearing, two sets of shield set up between bearing outer lane and bearing inner race, utilize the shield to repacking the bearing into approximately sealed state, can prevent effectively that the dust from entering into the inside of bearing, and can fix the shield through the fixed block, set up fixed opening and conveniently load and unload the shield, set up the rotation that fixed slot and fixed pin can restrict the shield, thereby guarantee the stability and the fastness of shield installation, and through setting up the mounting groove, the shield sets up inside the mounting groove, can prevent to receive the collision because the shield is protruding, increase the protection to the shield, increase the bulk strength of bearing.

Further, the fixed block sets up to the multiunit, and the multiunit fixed block evenly distributed, fixed opening sets up to the multiunit, and the multiunit fixed opening with multiunit fixed block one-to-one, the fixed pin with the fixed slot all sets up to the multiunit, and the multiunit the fixed pin with multiunit fixed slot one-to-one, and the multiunit the fixed pin set up respectively in the multiunit the inside of fixed slot, when using, the fixed block sets up to the multiunit, can increase the fastness of shield, and sets up multiunit fixed pin and fixed slot, reduces the atress of single group's fixed pin, protects the fixed pin on the one hand, and on the other hand can increase fixed pin and fixed slot to the fixed strength of shield.

Further, the bearing further comprises a plurality of groups of balls, the balls are arranged between the bearing outer ring and the bearing inner ring, the diameters of the balls are equal to the inner diameter of the bearing outer ring minus the outer diameter of the bearing inner ring, and the balls are arranged between the bearing outer ring and the bearing inner ring to realize rotation of the bearing.

Furthermore, the inner side of the bearing outer ring and the outer side of the bearing inner ring are both provided with retaining grooves, the cross sections of the retaining grooves are arc-shaped structures, the diameters of the retaining grooves are the same as those of the balls, the diameters of the balls are equal to the inner diameter of the bearing outer ring minus the outer diameter of the bearing inner ring plus the depth of the two groups of retaining grooves, and the retaining grooves can enable the balls to be fixed between the bearing outer ring and the bearing inner ring and not to fall off easily.

Further, the bearing outer ring is hollow structure, the inboard of bearing outer ring has been seted up the oil-out, the oil-out sets up to the multiunit, and the multiunit the oil-out evenly distributed, and the multiunit the oil-out all with the inside of bearing outer ring link up, be provided with the oil delivery port on the lateral wall of bearing outer ring, the oil delivery port with the inside of bearing outer ring is link up and is connected, just be provided with the oil delivery lid on the oil delivery port, just the screw thread has been seted up to the lateral wall of oil delivery lid, the oil delivery lid with oil delivery mouth threaded connection through setting up the oil-out, can inject lubricating oil to the ball when the bearing rotates, when increasing lubrication, can also prevent that ball, bearing outer ring and bearing inner race from rust, set up oil delivery port and oil delivery lid, can realize to the inside repeated input lubricating oil of bearing outer ring, more practical and convenient.

Further, the fixed slot is circular arc structure, the cross-section of fixed slot is trapezium structure, just the straight flute has been seted up to the one end of fixed slot, the cross-section of fixed pin is trapezium structure, just the fixed slot with the cross-section size shape of fixed pin is the same, the cross-section width of straight flute with the maximum width of fixed pin is the same, sets up the fixed slot into circular arc structure, can realize fixing the shield rotation to fixed slot inside, and all sets up the cross-section of fixed slot and fixed pin to trapezium, can prevent that the shield from rocking and cause the device to damage to increase the stability of device.

Further, the diameter of oil-out is 0.5mm, the shield is ring-shaped structure, just the external diameter of shield is the maximum diameter of mounting groove, just the internal diameter of shield is than the external diameter of bearing inner race is 0.2mm, sets up the diameter of oil-out to 0.5mm, can realize when the bearing is rotatory, and the inside lubricating oil that slowly flows out of oil-out, and when the bearing is static, no lubricating oil flows in the oil-out, sets up the internal diameter of shield to be greater than the external diameter of bearing inner race, can prevent that the bearing from leading to taking place relative displacement extrusion shield between bearing inner race and the bearing outer race owing to the atress to cause the damage.

(3) Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the bearing, two groups of dust covers are arranged between the outer ring and the inner ring of the bearing, the bearing is modified into an approximately sealed state by the dust covers, dust can be effectively prevented from entering the bearing, the dust covers can be fixed through the fixing blocks, the dust covers are conveniently assembled and disassembled by arranging the fixing openings, the rotation of the dust covers can be limited by arranging the fixing grooves and the fixing pins, so that the stability and the firmness of the installation of the dust covers are ensured, and the dust covers are arranged in the installation grooves by arranging the installation grooves, so that the dust covers are prevented from being collided due to the protrusions of the dust covers, the protection of the dust covers is increased, and the integral strength of the bearing is increased;

2. the bearing provided by the utility model utilizes the oil outlet, so that lubricating oil can be injected onto the balls when the bearing rotates, the balls, the outer ring of the bearing and the inner ring of the bearing can be prevented from rusting while lubrication is increased, and the oil delivery port and the oil delivery cover are arranged, so that the repeated input of the lubricating oil into the outer ring of the bearing can be realized, and the bearing is more practical and convenient.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present utility model;

FIG. 3 is an enlarged view of the circular area of FIG. 2;

FIG. 4 is a schematic view of a cross-section of an embodiment of the present utility model;

FIG. 5 is an enlarged view of the circular area of FIG. 4;

fig. 6 is a schematic structural view of a dust cap according to an embodiment of the present utility model.

The marks in the drawings are: 1. a bearing outer ring; 2. a bearing inner ring; 3. a dust cover; 4. a ball; 5. a mounting groove; 6. a fixing groove; 7. a fixing pin; 8. a fixed block; 9. fixing the opening; 10. a holding groove; 11. an oil outlet; 12. an oil delivery cover; 13. straight grooves.

Description of the embodiments

The bearing comprises a bearing outer ring 1, a bearing inner ring 2 and a dust cover 3, wherein the bearing outer ring 1 is arranged in the bearing inner ring 2, the dust cover 3 is arranged in two groups, the dust cover 3 is respectively arranged on two sides of the bearing outer ring 1, the dust cover 3 is respectively arranged between the bearing outer ring 1 and the bearing inner ring 2, mounting grooves 5 are respectively formed in two sides of the bearing outer ring 1 close to the inner edges, fixing grooves 6 are respectively formed in the two groups of mounting grooves 5, the dust cover 3 is respectively arranged in the two groups of mounting grooves 5, fixing pins 7 are respectively arranged on one sides of the dust cover 3 close to the bearing outer ring 1, the fixing pin 7 is arranged in the fixing groove 6, fixing blocks 8 are arranged on two sides of the bearing outer ring 1 close to the inner edge, fixing openings 9 corresponding to the fixing blocks 8 are formed in the dust cover 3, the bearing inner ring 2 is further provided with a plurality of groups of balls 4, the balls 4 are arranged between the bearing outer ring 1 and the bearing inner ring 2 to realize the rotation of the bearing, retaining grooves 10 are formed in the inner side of the bearing outer ring 1 and the outer side of the bearing inner ring 2, the cross sections of the retaining grooves 10 are arc structures, the diameters of the retaining grooves 10 are the same as the diameters of the balls 4, the diameters of the balls 4 are equal to the inner diameter of the bearing outer ring 1 minus the outer diameter of the bearing inner ring 2 plus the depth of the two groups of the retaining grooves 10, the retaining groove 10 is provided so that the balls 4 are fixed between the bearing outer race 1 and the bearing inner race 2 without falling off easily.

Wherein, fixed block 8 sets up to the multiunit, and the multiunit fixed block 8 evenly distributed, fixed opening 9 sets up to the multiunit, and the multiunit fixed opening 9 with multiunit fixed block 8 one-to-one, fixed pin 7 with fixed slot 6 all sets up to the multiunit, and the multiunit fixed pin 7 with multiunit fixed slot 6 one-to-one, and the multiunit fixed pin 7 set up in the multiunit respectively fixed slot 6's inside, when using, fixed block 8 sets up to the multiunit, can increase the fastness of shield 3, and set up multiunit fixed pin 7 and fixed slot 6, reduce the atress of single group fixed pin 7, protect fixed pin 7 on the one hand, on the other hand can increase fixed pin 7 and fixed slot 6 to shield 3's fixed strength.

This embodiment is for bearing, its section structure schematic diagram is as shown in fig. 4 and 5, and its section structure schematic diagram is as shown in fig. 4, bearing outer lane 1 is hollow structure, oil-out 11 has been seted up to the inboard of bearing outer lane 1, oil-out 11 sets up to the multiunit, and multiunit oil-out 11 evenly distributed, and multiunit oil-out 11 all with the inside of bearing outer lane 1 link up, be provided with the oil delivery port on bearing outer lane 1's the lateral wall, the oil delivery port with the inside of bearing outer lane 1 is link up and is connected, just be provided with oil delivery lid 12 on the oil delivery port, just oil delivery lid 12's lateral wall is seted up the screw thread, oil delivery lid 12 with oil delivery port threaded connection, through setting up oil-out 11, can inject lubricating oil to ball 4 when the bearing rotates, can also prevent that ball 4, bearing outer lane 1 and bearing inner race 2 from rust, set up oil delivery and oil delivery lid 12, can realize to the inside repeated input lubricating oil of bearing outer lane 1, and is more practical convenient.

Meanwhile, the fixed slot 6 is of a circular arc structure, the section of the fixed slot 6 is of a trapezoid structure, the straight slot 13 is formed in one end of the fixed slot 6, the section of the fixed pin 7 is of a trapezoid structure, the section of the fixed slot 6 is identical to the section of the fixed pin 7 in size and shape, the section width of the straight slot 13 is identical to the maximum width of the fixed pin 7, the fixed slot 6 is of a circular arc structure, the dust cover 3 can be rotated to the inside of the fixed slot 6 to be fixed, the sections of the fixed slot 6 and the fixed pin 7 are all of a trapezoid shape, the dust cover 3 can be prevented from shaking to damage the device, and the stability of the device is improved.

Preferably, the diameter of the oil outlet 11 is 0.5mm, the dust cover 3 is in a circular ring structure, the outer diameter of the dust cover 3 is the maximum diameter of the mounting groove 5, the inner diameter of the dust cover 3 is 0.2mm larger than the outer diameter of the bearing inner ring 2, the diameter of the oil outlet 11 is set to be 0.5mm, lubricating oil can slowly flow out of the inside of the oil outlet 11 when the bearing rotates, no lubricating oil flows out of the oil outlet 11 when the bearing is stationary, the inner diameter of the dust cover 3 is set to be larger than the outer diameter of the bearing inner ring 2, and the bearing can be prevented from being extruded by relative displacement between the bearing inner ring 2 and the bearing outer ring 1 due to stress, so that damage is caused.

When using this technical scheme's bearing, two sets of shield 3 set up between bearing outer lane 1 and bearing inner race 2, utilize shield 3 to repacking the bearing into approximately sealed state, can prevent effectively that the dust from entering into the inside of bearing, and can fix shield 3 through fixed block 8, set up fixed opening 9 and conveniently load and unload shield 3, set up fixed slot 6 and fixed pin 7 and can restrict shield 3's rotation, thereby guarantee shield 3 mounting's stability and fastness, and through setting up mounting groove 5, shield 3 sets up in mounting groove 5 inside, can prevent to receive the collision owing to shield 3 is protruding, increase the protection to shield 3, increase the bulk strength of bearing, ball 4 is between bearing outer lane 1 and bearing inner race 2, realize the rotation of bearing, simultaneously, holding groove 10 fixes ball 4, set up oil-out 11, can inject lubricating oil to ball 4 when the bearing rotation, in the time of increasing lubrication, bearing outer lane 1 and bearing 2 rust, set up oil delivery port and oil delivery cover 12, can realize to the inside repeated input of shield 3, can be realized to the fixed slot 6 and can be realized, can be realized and the fixed slot is the fixed to the fixed inner race 3, can be realized and the fixed slot is the fixed diameter is the fixed to the bearing inner race 3, can be broken to the fixed diameter is set up to the fixed bearing inner race 3, can cause the inside is broken to the fixed device is 3, and can cause the diameter is broken to the fixed bearing 3 is, and is broken to the fixed diameter is 3, the bearing is broken is fixed, the inside is 3, the bearing is fixed, the inside is can be used to be broken is compared with the bearing is 3, and is 3, the bearing is used to the bearing is fixed, and is used to be the bearing is used to be is fixed, and is used to the bearing is fixed to the bearing is 3.

And all that is not described in detail in this specification is well known to those skilled in the art.

Claims (7)

1. The bearing comprises a bearing outer ring (1), a bearing inner ring (2) and a dust cover (3); the anti-dust bearing is characterized in that the bearing outer ring (1) is arranged in the bearing inner ring (2), the anti-dust cover (3) is arranged in two groups, the anti-dust cover (3) is arranged in two sides of the bearing outer ring (1) respectively, the anti-dust cover (3) is arranged in the bearing outer ring (1) and the bearing inner ring (2), the mounting grooves (5) are formed in two sides of the bearing outer ring (1) close to the inner edge, the fixing grooves (6) are formed in two groups of the mounting grooves (5), the anti-dust cover (3) is arranged in two groups of the mounting grooves (5) respectively, the anti-dust cover (3) is arranged in one side of the bearing outer ring (1) close to the fixing pins (7), the fixing pins (7) are arranged in the fixing grooves (6), the fixing blocks (8) are arranged in two sides of the bearing outer ring (1) close to the inner edge, and the fixing blocks (8) are arranged in the anti-dust cover (3) respectively.

2. A bearing according to claim 1, further comprising balls (4), the balls (4) being arranged in groups, and the groups of balls (4) being arranged between the bearing outer ring (1) and the bearing inner ring (2), and the diameters of the groups of balls (4) being equal to the inner diameter of the bearing outer ring (1) minus the outer diameter of the bearing inner ring (2).

3. A bearing according to claim 2, characterized in that the inner side of the bearing outer ring (1) and the outer side of the bearing inner ring (2) are provided with retaining grooves (10), the cross section of the retaining grooves (10) is of an arc-shaped structure, the diameter of the retaining grooves (10) is the same as the diameter of the balls (4), and the diameter of the balls (4) is equal to the inner diameter of the bearing outer ring (1) minus the outer diameter of the bearing inner ring (2) plus the depth of the two groups of retaining grooves (10).

4. A bearing according to claim 3, wherein the fixing blocks (8) are arranged in a plurality of groups, the fixing blocks (8) are uniformly distributed in a plurality of groups, the fixing openings (9) are arranged in a plurality of groups, the fixing openings (9) are in one-to-one correspondence with the fixing blocks (8) in a plurality of groups, the fixing pins (7) are arranged in a plurality of groups, the fixing grooves (6) are arranged in a one-to-one correspondence with the fixing pins (7) in a plurality of groups, and the fixing pins (7) are arranged in the fixing grooves (6) in a plurality of groups.

5. The bearing according to claim 4, wherein the bearing outer ring (1) is of a hollow structure, an oil outlet (11) is formed in the inner side of the bearing outer ring (1), the oil outlets (11) are arranged in a plurality of groups, the plurality of groups of the oil outlets (11) are uniformly distributed, the plurality of groups of the oil outlets (11) are communicated with the inside of the bearing outer ring (1), an oil conveying port is formed in the side wall of the bearing outer ring (1), the oil conveying port is communicated with the inside of the bearing outer ring (1), an oil conveying cover (12) is arranged in the oil conveying port, threads are formed in the side wall of the oil conveying cover (12), and the inner wall of the oil conveying port is provided with threads, and the oil conveying cover (12) is in threaded connection with the oil conveying port.

6. The bearing according to claim 5, wherein the fixing groove (6) has a circular arc structure, the cross section of the fixing groove (6) has a trapezoid structure, a straight groove (13) is formed at one end of the fixing groove (6), the cross section of the fixing pin (7) has a trapezoid structure, the cross section of the fixing groove (6) is the same as the cross section of the fixing pin (7), and the cross section width of the straight groove (13) is the same as the maximum width of the fixing pin (7).

7. A bearing according to claim 6, wherein the diameter of the oil outlet (11) is 0.5mm, the dust cover (3) is of a circular ring-shaped structure, the outer diameter of the dust cover (3) is the largest diameter of the mounting groove (5), and the inner diameter of the dust cover (3) is 0.2mm larger than the outer diameter of the bearing inner ring (2).