CN214003112U - Sealing carrier roller - Google Patents

Abstract

The utility model relates to a bearing roller technical field, more specifically relates to a sealed bearing roller, including the axle core, a bearing, bearing roller and external seal, bearing roller is equipped with the bearing frame, the bearing frame is equipped with first connecting portion and second connecting portion, first connecting portion are connected with bearing roller, the outer lane and the second connecting portion of bearing are connected, the inner circle and the axle core of bearing are connected, the outer lane and the second connecting portion of bearing are connected, the external seal is located between bearing roller and the axle core, still be equipped with interior seal assembly between external seal and the bearing, a serial communication port, be equipped with anti-deformation portion on the external seal, be equipped with on the first connecting portion with the sealed complex groove structure of anti-deformation portion. The utility model discloses the scheme improves the structure of external seal spare structure and bearing frame, increases external seal spare structural strength, makes external seal spare size enough satisfy the requirement of sealed bearing roller to sealing performance, increases seal structure simultaneously for between external seal spare and the bearing frame under the prerequisite that does not set up outside protruding structure on the external seal spare.

Description

Sealing carrier roller

Technical Field

The utility model relates to a bearing roller technical field, more specifically relates to a sealed bearing roller.

Background

The traditional carrier roller structure comprises a shaft core, a bearing, a carrier roller and an outer sealing piece, wherein the carrier roller is provided with a bearing seat, the bearing is arranged between the bearing seat and the shaft core, an inner ring of the bearing is connected with the shaft core, an outer ring of the bearing is connected with the bearing seat, and the outer sealing piece is arranged between the shaft core and the carrier roller. The external sealing piece is used for sealing the opening of the carrier roller, and dust, water and other impurities are prevented from entering the carrier roller. When the traditional carrier roller is used, the shaft core is fixed, and the carrier roller is matched with the structural characteristics of the bearing to realize the rotation of the carrier roller relative to the shaft core and the external sealing piece under the traction action of an external object.

But the size of the outer sealing piece of the traditional carrier roller structure is smaller, and the size of the outer sealing piece is close to that of the bearing. When traditional bearing roller used, the external seal piece can not carry out good sealing to the opening of bearing roller section, leads to dust and water to get into the inside of bearing roller from the space between external seal piece and the bearing roller section easily, increases along with dust and water etc. in the inside accumulation of bearing roller, can influence the life and the result of use of bearing roller inner structure such as bearing gradually, reduces the life of bearing roller. In the sealing device of the idler bearing disclosed in CN201634201U, the size of the outer sealing element is small, and when large particles of sand are stuck into the outer sealing element, the normal operation of the idler is seriously affected. Simultaneously because the external seal size is less, debris such as grit can block the clearance between the external bracket of external seal and axle core when traditional bearing roller uses, influence the bearing roller and rotate to can cause the damage to the bearing roller structure. When the size of the external sealing piece is designed to be large enough, the structure of the external sealing piece is unstable and is easy to deform under the action of external force, so that the matching between the external sealing piece and the roller supporting barrel is influenced. If traditional bearing roller thinks at outer sealing member and bearing frame increase seal structure, can receive the less problem influence in inherent clearance between outer sealing member and the bearing frame, can only set up outside bellied structure on the outer sealing member and vacate the clearance for sealed structure, influence the smoothness of outer sealing member surface dimension, set up when outside bellied structure bulge size is too big on the outer sealing member, because the clearance between outer sealing member and the bearing roller strutting arrangement is less, the outer sealing member can receive bearing roller strutting arrangement's the blockking, influence the normal rotation of bearing roller.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is little to overcome above-mentioned prior art external seal spare size, it is little to satisfy the bearing roller to sealing performance's requirement and clearance between external seal spare and the bearing roller strutting arrangement, it makes the problem of increasing seal structure between external seal spare and the bearing frame not to set up outside bellied structure on the external seal spare, a sealed bearing roller is provided, the structure of external seal spare structure and bearing frame is improved, increase external seal spare structural strength, make the external seal spare size enough satisfy the requirement of sealed bearing roller to sealing performance, increase seal structure simultaneously for between external seal spare and the bearing frame under the prerequisite that does not set up outside protruding structure on the external seal spare.

In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a sealed bearing roller, including the axle core, a bearing, the bearing roller section of thick bamboo and external seal spare, the bearing roller section of thick bamboo is equipped with the bearing frame, the bearing frame is equipped with first connecting portion and second connecting portion, first connecting portion are connected with the bearing roller section of thick bamboo, the outer lane and the second connecting portion of bearing are connected, the inner circle and the axle core of bearing are connected, the outer lane and the second connecting portion of bearing are connected, the external seal spare is located between bearing roller section of thick bamboo and the axle core, still be equipped with the interior seal subassembly between external seal spare and the bearing, a serial communication port, be equipped with on the external seal spare and prevent the deformation portion, be equipped with on the first connecting portion with the sealed complex groove structure of deformation portion.

In this scheme, the bearing roller is including axle core and bearing roller section of thick bamboo, and axle core, bearing roller section of thick bamboo connect gradually. An outer sealing element is arranged between the supporting roller barrel and the shaft core, an inner sealing assembly is further arranged between the outer sealing element and the bearing, the inner sealing assembly is used for sealing the space between the outer sealing element and the bearing, an anti-deformation portion is arranged on the outer sealing element along the circumferential direction, the structural strength of the outer sealing element is improved by the anti-deformation portion, and the stability of the structure of the outer sealing element can be guaranteed when the size of the outer sealing element is increased. The bearing frame is equipped with first connecting portion and second connecting portion, is equipped with the portion of preapring for an unfavorable turn of events on the external seal, and the recess structure on the first connecting portion is with the sealed cooperation of the portion of preapring for an unfavorable turn of events, when increasing the seal structure between external seal and the bearing frame, can also increase the stability of external seal structure, guarantees that the external seal surface is the plane structure state all the time.

In one embodiment, the deformation preventing portion is provided on the outer seal member in a circumferential direction, and the outer seal member covers the first connecting portion. Along the sealed effect that the increase of the deformation portion of preapring for an unfavorable turn of events ability maximize that circumference set up and the sealed cooperation of groove structure on the first connecting portion produced, guarantee sealed effect. Outer seal covers first connecting portion, improves outer seal's sealed effect to the at utmost, avoids particulate matters such as grit to get into between outer seal and the first connecting portion, improves bearing roller operating stability.

Preferably, the deformation preventing portion is provided on the outer seal on a side of the outer seal facing the first connecting portion. The deformation prevention part arranged on one side of the outer sealing piece facing the first connecting part can ensure the smoothness of the other side surface of the outer sealing piece.

In one embodiment, the deformation preventing portion is a convex structure, and the first connecting portion is provided with a groove structure which is in sealing fit with the deformation preventing portion. The protruding structure of the deformation-preventing portion is in sealing fit with the groove structure on the first connecting portion, and the protruding structure and the groove structure are matched with each other in shape, so that the sealing effect is guaranteed. The deformation-preventing part is matched with the groove structure to form a sealing structure, so that foreign matters are prevented from entering the bearing seat and the bearing, and the normal work of the carrier roller is guaranteed.

Preferably, the deformation preventing portion is provided with at least two, at least one deformation preventing portion is in sealing fit with the edge of the groove structure, and at least one protruding structure is in sealing fit with the groove bottom of the groove structure. At least one deformation preventing part combined with the at least one deformation preventing part in sealing fit with the groove bottom is in sealing fit with the groove bottom, and the sealing performance between the outer sealing element and the bearing seat is improved through the sealing fit of the plurality of deformation preventing parts and the groove structure.

Preferably, the deformation preventing portions are two, the protruding heights of the outer sealing element in the direction from the edge to the center are sequentially increased, and the two protruding heights are respectively in sealing fit with the edge of the groove structure and the groove bottom. Two deformation portions of preapring for an unfavorable turn of events and the sealed cooperation of groove structure, the dual seal effect increases leakproofness.

Preferably, the inner seal assembly includes an inner seal member provided with a flange engaged with the deformation preventing portion. The wing limit cooperates with the deformation portion of preapring for an unfavorable turn of events for position between sealed deformation portion and the inner seal spare of preapring for an unfavorable turn of events increases the holistic leakproofness of bearing roller.

Preferably, a labyrinth seal structure is further arranged between the inner seal and the outer seal. Labyrinth seals are used to increase the seal.

Preferably, the inner sealing assembly further comprises a seal center connected with the shaft core and a seal nut connected with the second connecting portion, the seal center is arranged between the seal nut and the inner sealing element, and a labyrinth sealing structure is arranged between the seal center and the seal nut and between the seal center and the inner sealing element. The inner sealing element, the seal middle and the seal nut are matched through the labyrinth sealing structure in sequence, the seal middle is connected with the shaft core, the seal nut and the inner sealing element are connected with the second connecting part, and the labyrinth sealing structure can also play a role in sealing when the three rotate relatively.

Preferably, the seal nut is provided with a limiting part, and the inner sealing part is provided with a limiting groove connected with the limiting part. When the seal nut is connected with the inner sealing element on the bearing seat, the limiting part is connected with the limiting groove to play a role in positioning, and the inner sealing element is positioned on the bearing seat.

Compared with the prior art, the utility model, have following characteristics:

the external seal in this scheme is last to be equipped with the portion of preapring for an unfavorable turn of events shape, and the structural stability that the portion of preapring for an unfavorable turn of events shape can increase the external seal piece, and when the external seal size increased, the portion of preapring for an unfavorable turn of events shape can avoid the unstable problem of external seal structure because the external seal size caused, increases the structural strength of external seal piece. The size of the outer sealing part is equal to that of the roller supporting barrel, the outer sealing part is connected with the roller supporting barrel, the bearing seat is comprehensively sealed, the exposed area of the bearing seat is reduced in actual use, accordingly, the influence of sundries such as sand stones on the carrier roller is reduced, and the dustproof and waterproof effects are better.

Drawings

Fig. 1 is a schematic structural view of a partial structure section in an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of part a in the embodiment of the present invention.

Fig. 3 is a schematic sectional structure diagram in the embodiment of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example 1:

as shown in fig. 1 and as fig. 2, the utility model provides a sealed bearing roller, bearing roller are including bearing roller section 20, axle core 10, bearing roller section 20 is equipped with bearing frame 40, bearing frame 40 is equipped with first connecting portion 42 and second connecting portion 43, first connecting portion 42 is connected with bearing roller section 20, bearing 50's outer lane is connected with second connecting portion 43, be equipped with bearing 50 between bearing frame 40 and the axle core 10, bearing 50's inner circle is connected with axle core 10, bearing 50 realizes the rotation of bearing roller section 20 for axle core 10.

In the scheme, an outer sealing element 30 is arranged between the roller supporting cylinder 20 and the shaft core 10, and the outer sealing element 30 is fixedly connected with the shaft core 10 and is arranged at a position close to the end part of the shaft core 10. The outer sealing element 30 can be made of plastic or steel or iron, and when the roller holder 20 rotates relative to the shaft core 10, the roller holder 20 rotates relative to the outer sealing element 30.

Because the shape of the outer sealing member 30 is a plate-shaped structure similar to a circle, the larger the size of the outer sealing member 30 is, the lower the structural strength of the outer sealing member 30 is, and meanwhile, as the use environment of the carrier roller is more complicated and severe, deformation is easily generated in practical use.

Be equipped with on the outer seal member 30 and prevent deformation portion 31, prevent that deformation portion 31 sets up along circumference on outer seal member 30 for increase the structural strength and the stability of outer seal member 30, when outer seal member 30 size is enough big, can guarantee outer seal member 30 structural strength, avoid outer seal member 30 to produce deformation. Outer seal 30 covers first connecting portion 42, improves outer seal 30's sealed effect to the at utmost, avoids particulate matter such as grit to get into between outer seal 30 and the first connecting portion 42, improves bearing roller operating stability.

The outer seal 30 may have a size that the edge of the outer seal 30 extends between the first connection portion 42 and the idler roller 20, or the outer seal 30 and the idler roller 20 may have a size that is equivalent to each other, in this embodiment, the outer seal 30 has a diameter that is equivalent to or slightly smaller than the inner diameter of the idler roller 20, and a welding line 60 is provided between the outer seal 30 and the idler roller 20, and the welding line 60 is used to connect the bearing seat 40 and the idler roller 20.

In this embodiment, the deformation preventing portion 31 is a protruding structure disposed on the outer sealing member 30, the deformation preventing portion 31 is disposed on the outer sealing member 30 on a side of the outer sealing member 30 facing the first connecting portion 42, so as to ensure the smoothness of the other side surface of the outer sealing member, and the deformation preventing portion 31 forms a circle with the center point of the outer sealing member 30 as the center of the circle.

As shown in fig. 1 and 2, a groove structure 41 is provided on the first connection portion 42 toward the end surface of the outer seal 30, and the groove structure 41 may be a circumferentially continuous stepped structure provided on the first connection portion 42, the step of the stepped structure cooperating with the deformation preventing portion 31.

After the outer sealing element 30 is connected with the shaft core 10, the deformation preventing portion 31 is in sealing fit with the groove structure 41, the sealing fit mode can be sealing connection, a sealing structure is formed at the joint of the deformation preventing portion 31 and the second connecting portion 41, and the overall sealing performance of the roller carrier 20 is improved. The cooperation of deformation portion 31 and groove structure 41 has prevented, realized increasing seal structure before external seal 30 and bearing frame 40, increase seal structure for between external seal 30 and the bearing frame 40 on the prerequisite that does not set up outside protruding structure on the external seal simultaneously, avoid because set up when outside bellied structure bulge size is too big on the external seal 30, because the clearance between external seal 30 and the bearing roller strutting arrangement is less, external seal 30 can receive bearing roller strutting arrangement's blocking, influence the normal rotation of bearing roller. In this embodiment, the portion of preapring for an unfavorable turn of events 31 is equipped with at least two, forms concentric circles on outer seal 30, and the portion of preapring for an unfavorable turn of events 31 all forms seal structure with groove structure 41 seal fit, every portion of preapring for an unfavorable turn of events 31 and groove structure 41 seal fit back formation seal structure, at least two portion of preapring for an unfavorable turn of events 31 with groove structure 41 seal fit, form a plurality of seal structure, increase seal structure's hierarchy nature, reinforcing seal strength.

As shown in fig. 2, an inner seal assembly is disposed between the outer seal 30 and the bearing 50, the inner seal assembly includes an inner seal 70 connected to the second connecting portion 43, a seal 80 connected to the shaft core 10, and a seal nut 90 connected to the second connecting portion 43, and the inner seal 70, the seal 80, and the seal nut 90 are connected in sequence along the direction of the outer seal 30 toward the bearing 50.

In this embodiment, the inner sealing element 70 is provided with a wing edge 71, the wing edge 71 is of a horn-shaped structure, when the outer sealing element 30 is connected with the shaft core 10, the wing edge 71 is connected with the outer sealing element 30 to form a sealing structure, and the wing edge 71 is matched with the sealing structure formed at the joint of the deformation preventing portion 31 to enhance the sealing performance of the carrier roller.

A labyrinth seal structure is further arranged between the inner seal member 70 and the outer seal member 30, and can effectively prevent sundries from entering the inner seal assembly, so that the sealing performance is improved.

As shown in fig. 2, labyrinth seal structures are respectively arranged between the seal middle 80 and the seal nut 90, and between the seal middle 80 and the inner seal 70, and the labyrinth seal structures can effectively improve the sealing performance of the carrier roller and simultaneously realize the rotation of the inner seal 70 relative to the seal middle 80 and the seal middle 80 relative to the seal nut 90.

In actual production, the sizes of the supporting roller and the shaft core can be adjusted according to actual needs, and the number of grooves of the labyrinth seal structure can be adjusted through the change of the distance between the bearing seat 40 and the shaft core 10 so as to adapt to actual production requirements.

In this embodiment, a sealing plate 51 is further disposed between the bearing 50 and the second connecting portion 43, the sealing plate 51 seals the opening of the second connecting portion 43, and the sealing plate 51 also plays a role in assembling the bearing 50 and the second connecting portion 43.

Example 2:

the embodiment is similar to embodiment 1, except that, in this embodiment, two deformation preventing portions 31 are provided, the protruding heights of the two deformation preventing portions 31 in the direction from the edge to the center on the outer sealing member 30 are sequentially increased, and when the outer sealing member 30 is connected with the shaft core 10, the two deformation preventing portions 31 are respectively in sealing fit with the edge of the groove structure 41 and the groove bottom to form a double-seal structure.

In this embodiment, the seal nut 90 is provided with the limiting member 91, the limiting member 91 is a circumferential protrusion on the seal nut 90, the inner sealing member 70 is provided with the limiting groove 72 capable of being connected with the limiting member 91, the limiting groove 72 is connected with the limiting member 91, and when the seal nut 90 and the inner sealing member 70 are connected on the second connecting portion 43, the limiting member 91 and the limiting groove 72 are connected to play a role in positioning, and the inner sealing member 70 is set to be connected on the second connecting portion 43 for positioning.

Example 3:

this embodiment is similar to embodiment 1 except that the deformation preventing portions 31 are provided at both sides of the outer seal 30, the deformation preventing portions 31 provided at the inner side of the outer seal 30 are engaged with the groove structures 41, and the deformation preventing portions 31 provided at the outer side of the outer seal 30 are engaged with the deformation preventing portions 31 provided at the inner side, thereby enhancing the structural strength and stability of the outer seal 30.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A sealing carrier roller comprises a shaft core (10), a bearing (50), a carrier roller barrel (20) and an outer sealing piece (30), the roller carrier (20) is provided with a bearing seat (40), the bearing seat (40) is provided with a first connecting part (42) and a second connecting part (43), the first connecting part (42) is connected with the roller supporting cylinder (20), the outer ring of the bearing (50) is connected with the second connecting part (43), the inner ring of the bearing (50) is connected with the shaft core (10), the outer sealing element (30) is arranged between the roller supporting cylinder (20) and the shaft core (10), an inner sealing component is arranged between the outer sealing element (30) and the bearing (50), it is characterized in that the outer sealing element (30) is provided with an anti-deformation part (31), and the first connecting part (42) is provided with a groove structure (41) which is in sealing fit with the deformation preventing part (31).

2. A sealing idler according to claim 1 wherein the deformation preventing portion (31) is provided circumferentially on the outer seal (30), the outer seal (30) covering the first connection portion (42).

3. A sealing idler as claimed in claim 1 wherein the deformation preventing portion (31) is provided on the outer seal member (30) on the side of the outer seal member (30) facing the first connection portion (42).

4. A sealing idler as claimed in claim 3 wherein said deformation preventing portion (31) is a raised formation which sealingly engages with a recessed formation (41).

5. A seal carrier roller according to claim 4, characterised in that the deformation preventing portions (31) are provided in at least two, at least one deformation preventing portion (31) being in sealing engagement with the edge of the groove formation (41) and at least one projection formation being in sealing engagement with the groove base of the groove formation (41).

6. A seal carrier roller according to claim 5, characterised in that there are two of the deformation preventing portions, the height of the projections increasing in sequence from edge to centre on the outer seal member (30) to sealingly engage with the edge and the base of the groove formation (41) respectively.

7. A sealing idler as claimed in claim 3 wherein the inner seal assembly includes an inner seal (70), the inner seal (70) being provided with a flange (71) which engages the deformation prevention portion (31).

8. A seal idler roll according to claim 7, characterised in that a labyrinth seal is also provided between the inner seal (70) and the outer seal (30).

9. A seal carrier roller according to claim 7, characterised in that the inner seal assembly further includes a seal intermediate (80) connected to the shaft core (10) and a seal nut (90) connected to the second connecting portion (43), the seal intermediate (80) being disposed between the seal nut (90) and the inner seal (70), and a labyrinth seal structure being disposed between the seal intermediate (80) and the seal nut (90) and the inner seal (70).

10. A seal carrier roller according to claim 9, characterised in that the seal nut (90) is provided with a limit stop and the inner seal member (70) is provided with a limit slot (72) connected with the limit stop.

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