CN216888669U - Seal assembly and carrier roller rotating assembly - Google Patents

Abstract

The embodiment of the utility model relates to a sealing assembly and a carrier roller rotating assembly, wherein the sealing assembly comprises a shaft sleeve and a sealing disc, the shaft sleeve comprises a sleeve body, a first flange and a second flange, shaft holes penetrating through two ends of the shaft sleeve are formed in the shaft sleeve, and the first flange and the second flange are arranged on the outer peripheral surface of the sleeve body; the sealing disc is provided with inner holes penetrating through two ends of the sealing disc, the inner holes are internally provided with baffle ring parts connected with the sealing disc, the shaft sleeve is arranged in the inner holes in a penetrating manner, and the baffle ring parts are clamped between the first flange and the second flange; the carrier roller rotating assembly comprises a carrier roller shaft, a bearing seat, a bearing, a sealing assembly and a stop piece. The sealing assembly and the carrier roller rotating assembly provided by the embodiment of the utility model have better sealing performance, and can effectively prevent dust and water from permeating into the carrier roller.

Description

Seal assembly and carrier roller rotating assembly

Technical Field

The utility model relates to the technical field of carrier rollers, in particular to a sealing assembly and a carrier roller rotating assembly.

Background

The belt conveyer is a machine for conveying materials by using a belt, the carrier roller is a part for supporting a conveying belt, bearings assembled at two ends of the carrier roller need to be sealed, labyrinth seal assemblies composed of an inner seal ring and an outer seal ring are arranged for ensuring the sealing effect, dust and water are prevented from entering, an inner check ring and an outer check ring are arranged for preventing the axial displacement of the inner seal ring and the outer seal ring, and therefore the fit clearance between relative moving parts is kept, and the rotation resistance is reduced.

In the related technology, the sealing is realized by a labyrinth seal assembly consisting of an inner seal ring and an outer seal ring, so that the inner seal ring and the outer seal ring move relatively in the rotation process, and the diameter of the joint part of the inner seal ring and the outer seal ring is larger, so that the area of an annular gap of the joint part is too large, and the probability of entering dust and water is increased.

SUMMERY OF THE UTILITY MODEL

The present invention is based on the discovery and recognition by the inventors of the following facts and problems: in the related technology, the diameter of the combined part of the inner sealing ring and the outer sealing ring is larger, so that the area of an annular gap of the combined part is too large, and the probability of entering dust and water in the carrier roller is increased.

The present invention is directed to solving, at least to some extent, the technical problems in the related art. Therefore, the embodiment of the utility model provides the sealing assembly which has a better sealing effect and can effectively prevent dust and water from entering the interior of the carrier roller.

The embodiment of the utility model also provides a supporting roller rotating assembly.

The sealing assembly comprises a shaft sleeve and a sealing disc, wherein the shaft sleeve comprises a sleeve body, a first flange and a second flange, shaft holes penetrating through two ends of the shaft sleeve are formed in the shaft sleeve, and the first flange and the second flange are arranged on the outer peripheral surface of the sleeve body; set up the hole that runs through its both ends on the sealed dish, be provided with in the hole with the fender ring portion that sealed dish is connected, the axle sleeve wears to establish in the hole, keep off ring portion card first flange with between the second flange.

In the sealing assembly of the embodiment of the utility model, the gap between the sealing disc and the shaft sleeve is tightly attached to the shaft sleeve, the area of the gap formed between the shaft sleeve and the sealing disc is smaller, and a channel for dust and water to permeate into is correspondingly reduced; in addition, the first flange and the second flange are protruded out of the outer peripheral surface of the sleeve body, and the blocking ring part is matched with the first flange and the second flange to form a sealing structure in the radial direction, so that dust and water can be effectively prevented from permeating, and the sealing sleeve has better sealing performance.

In some embodiments, the first flange and the second flange both encircle the outer periphery of the jacket body.

In some embodiments, the outer circumferential profile of the cross section of the sleeve body is a circular ring shape, and the ring blocking part can elastically deform along the radial direction of the sleeve body.

In some embodiments, the first flange is located within the internal bore, and the cross-sectional area of at least a portion of the outer peripheral surface of the first flange increases in a direction toward the second flange.

In some embodiments, one end of the collar portion abuts the first flange and the other end of the collar portion abuts the second flange.

In some embodiments, the sealing disc includes an inner ring portion, an outer ring portion and a face portion, the outer peripheral profile of the cross section of the inner ring portion and the outer ring portion is circular, the outer ring portion is arranged on the outer side of the inner ring portion, the inner ring portion is connected with the outer ring portion through the face portion, the blocking ring portion is arranged on the inner peripheral surface of the inner ring portion, and the blocking ring portion is connected with the inner ring portion.

The carrier roller rotating assembly comprises a carrier roller shaft, a bearing seat, a bearing, a sealing assembly and a stop piece, wherein the bearing seat is sleeved on the carrier roller shaft, and a sink groove is formed between the bearing seat and the carrier roller shaft; the bearing is arranged in the sink groove, and the bearing seat is connected with the roller carrier shaft through the bearing; the sealing assembly is the sealing assembly in any one of the embodiments, the shaft sleeve is sleeved on the roller carrier shaft, the bearings of the shaft sleeve are sequentially arranged in the length direction of the roller carrier shaft and abut against each other, and the sealing disc is connected with the inner wall of the sinking groove; the stop piece is arranged on the roller carrier shaft to limit the axial movement of the shaft sleeve.

The carrier roller rotating assembly provided by the embodiment of the utility model realizes the sealing of the bearing seat by using the sealing assembly provided by any one of the embodiments, prevents dust or water from entering the sink tank, protects the bearing and prolongs the service life of the bearing. Compared with the prior art, the rotation diameter of the shaft sleeve is relatively small, and the fit clearance between the shaft sleeve and the sealing disc is closer to the bearing roller shaft, so that the clearance area formed between the shaft sleeve and the sealing disc is smaller, and the passage for dust and water to permeate into the bearing seat is correspondingly reduced; in addition, first flange and second flange all outstanding in the outer peripheral face of the cover body, have formed radial direction's seal structure after fender ring portion cooperates with first flange, second flange, can prevent in dust and the infiltration of water bearing frame more effectively to make bearing roller rotating assembly have better sealing performance.

In some embodiments, the idler roller rotating assembly further comprises a sealing ring embedded in the sinking groove, the sealing ring is located on one side of the bearing, which faces away from the sealing assembly, and a part of the sealing ring abuts against the idler roller shaft.

In some embodiments, the stop member is annular and is sleeved on the roller carrier shaft, a shaft clamp is arranged on the roller carrier shaft, and the stop member is clamped between the shaft clamp and the shaft sleeve.

In some embodiments, the stop has an outer diameter sized to shield the sealing disk.

Drawings

Fig. 1 is a cross-sectional view of a seal assembly in an embodiment of the present invention, in which the lower half is omitted and is symmetrical in the upper-lower direction.

FIG. 2 is a block diagram of a bushing in a seal assembly according to an embodiment of the present invention.

FIG. 3 is a block diagram of a seal disk in a seal assembly according to an embodiment of the present invention.

FIG. 4 is a schematic view of the manner in which the seal assembly is assembled in an embodiment of the present invention.

Fig. 5 is a block diagram of an idler rotation assembly in accordance with an embodiment of the utility model.

Fig. 6 is an idler for an idler rotation assembly to which an embodiment of the utility model is applied.

Reference numerals: 1. shaft clamping; 2. a stopper; 3. sealing the disc; 4. a shaft sleeve; 5. a bearing; 6. a bearing seat; 7. a seal ring; 8. a barrel; 9. a carrier roller shaft; 10. a first flange; 11. a card slot; 12. a second flange; 13. a sleeve body; 14. an inner bore; 15. an outer ring portion; 16. a retaining ring part; 17. an inner ring portion; 18. an end surface portion; 19. a bevel; 20. a shaft hole; 21. and (5) sinking the tank.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

Referring to fig. 1 to 4, a seal assembly according to an embodiment of the present invention includes a shaft sleeve 4 and a seal disc 3, the shaft sleeve 4 includes a sleeve body 13, a first flange 10 and a second flange 12, the shaft sleeve 4 is provided with shaft holes 20 penetrating through two ends thereof, and the first flange 10 and the second flange 12 are both disposed on an outer circumferential surface of the sleeve body 13; set up on sealed dish 3 and run through the hole 14 at its both ends, be provided with in the hole 14 and keep off ring portion 16 with sealed dish 3 connection, axle sleeve 4 wears to establish in hole 14, keeps off ring portion 16 card between first flange 10 and second flange 12.

As shown in fig. 2, the sleeve 4 may be made of a metal material, such as a copper alloy, the sleeve body 13, the first flange 10, and the second flange 12 are integrally connected, a gap exists between the first flange 10 and the second flange 12 to form a slot 11, and the shaft hole 20 penetrates through two ends of the sleeve 4 and is used for the roller carrier shaft 9 to pass through. The sealing disc 3 can be made of rubber, and preferably rubber with ageing resistance, oil resistance and corrosion resistance is adopted. The size of an inner hole 14 in the sealing disc 3 is matched with that of the shaft sleeve 4, a part of the shaft sleeve 4 is inserted into the inner hole 14 in the sealing disc 3, and the sealing between the sealing disc 3 and the shaft sleeve 4 is realized by clamping the ring blocking part 16 in the clamping groove 11.

In the sealing assembly of the embodiment of the utility model, the gap between the sealing disc 3 and the shaft sleeve 4 is tightly attached to the shaft sleeve 4, the area of the gap formed between the shaft sleeve 4 and the sealing disc 3 is smaller, and a channel for dust and water to permeate into is correspondingly reduced; in addition, the first flange 10 and the second flange 12 both protrude out of the outer peripheral surface of the sleeve body 13, and the baffle ring part 16 forms a sealing structure in the radial direction after being matched with the first flange 10 and the second flange 12, so that dust and water can be effectively prevented from permeating, and the sealing performance is better.

In some embodiments, the first flange 10 and the second flange 12 both encircle the outer edge of the jacket 13. As shown in fig. 1, the first flange 10 and the second flange 12 surround the outer side of the sleeve body 13 and are continuous and uninterrupted, and the sealing between the sealing plate 3 and the sleeve body 4 is realized after the retaining ring part 16 is clamped between the first flange 10 and the second flange 12.

In some embodiments, the outer circumferential profile of the cross section of the sheath body 13 is circular, and the ring stopper 16 is elastically deformable in the radial direction of the sheath body 13. As shown in fig. 2 and 3, the sleeve body 13 is formed in a hollow circular tube shape, and the retainer ring portion 16 is formed in a circular ring shape.

The manner in which the seal disk 3 is mounted on the boss 4 can be seen from fig. 4, the boss 4 is held stationary, then the seal disk 3 is aligned with the center of the boss 4, and then the seal disk 3 is pushed rightward (i.e., in the direction indicated by arrow a in fig. 4), when the retainer portion 16 on the seal disk 3 comes into contact with the first flange 10, the first flange 10 presses the retainer portion 16 to the outside to elastically deform the retainer portion 16, and the seal disk 3 is pushed further until the retainer portion 16 is caught between the first flange 10 and the second flange 12, whereby the assembly between the seal disk 3 and the boss 4 is completed. During assembly, the second flange 12 also acts as a stop, blocking the further movement of the sealing disk 3 to the right. When the sealing disk 3 is made of rubber, the blocking ring part 16 made of rubber has elastic deformation capability, so that the resistance between the blocking ring part 16 and the first flange 10 in the installation process of the sealing disk 3 can be reduced, and the assembly process between the sealing disk 3 and the shaft sleeve 4 is simpler and easier.

In some embodiments, the first flange 10 is positioned within the bore 14, and the cross-sectional area of at least a portion of the outer peripheral surface of the first flange 10 gradually increases in a direction toward the second flange 12. As shown in fig. 2, the first flange 10 is provided with a slope 19, and the distance from a point on the slope 19 to the axis of the sleeve 4 gradually increases. Alternatively, the inclined surface 19 extends from the leftmost end of the first flange 10 to the rightmost end of the first flange 10, in which case the cross-sectional shape of the first flange 10 in the axial section of the sleeve 4 is a right triangle. The provision of the inclined surface 19 contributes to further reducing the assembling resistance of the seal disk 3, making the assembling process easier.

In some embodiments, one end of the retainer ring portion 16 abuts the first flange 10 and the other end of the retainer ring portion 16 abuts the second flange 12. As shown in FIG. 1, the ring blocking part 16 on the sealing disk 3 enters the clamping groove 11 through elastic deformation, and the ring blocking part 16 cannot exit from the clamping groove 11 after the shape is reset, so that the axial positioning of the sealing disk 3 is realized by the limitation of the first flange 10 and the second flange 12, and the axial sealing mode is simple and effective and has a good axial positioning effect.

In some embodiments, the seal disk 3 includes an inner ring portion 17, an outer ring portion 15, and a face portion 18, the outer circumferential profiles of the cross sections of the inner ring portion 17 and the outer ring portion 15 are circular rings, the outer ring portion 15 is disposed outside the inner ring portion 17, the inner ring portion 17 and the outer ring portion 15 are connected by the face portion 18, a retainer ring portion 16 is disposed on the inner circumferential surface of the inner ring portion 17, and the retainer ring portion 16 is connected to the inner ring portion 17.

As shown in fig. 3, the inner ring portion 17, the outer ring portion 15, and the end surface portion 18 are integrally connected to each other, the inner ring portion 17 extends rightward along an inner edge of the end surface portion 18, the outer ring portion 15 extends rightward along an outer edge of the end surface portion 18, the inner ring portion 17 and the outer ring portion 15 are both in a circular tube shape having a certain thickness, a ring groove is formed between the inner ring portion 17 and the outer ring portion 15, and the stopper portion 16 is provided at a right end of the inner ring portion 17 and extends inward along a radial direction of the inner ring portion 17. Since the retainer ring portion 16 is provided at the end of the inner ring portion 17 remote from the end surface portion 18, the inner ring portion 17 can also be elastically deformed radially outward when the first flange 10 presses the retainer ring portion 16, thereby facilitating the process of assembling the seal disc 3 with the boss 4.

Referring to fig. 5 and 6, an idler rotation assembly according to an embodiment of the present invention comprises an idler shaft 9, a bearing housing 6, a bearing 5, a seal assembly and a stop 2. The bearing seat 6 is sleeved on the roller carrier shaft 9, and a sinking groove 21 is formed between the bearing seat 6 and the roller carrier shaft 9; the bearing 5 is arranged in the sink groove 21, and the bearing seat 6 is connected with the roller carrier shaft 9 through the bearing 5; the sealing assembly is the sealing assembly described in any one of the above embodiments, the shaft sleeve 4 is sleeved on the carrier roller shaft 9, the bearings 5 of the shaft sleeve 4 are sequentially arranged in the length direction of the carrier roller shaft 9 and abut against each other, and the sealing disc 3 is connected with the inner wall of the sinking groove 21; the stop member 2 is provided on the carrier roller shaft 9 to limit axial movement of the sleeve 4.

As shown in fig. 5, an inner folded edge extending inward in the radial direction is provided at the right end of the bearing seat 6, a sunken groove 21 for accommodating the bearing 5 is formed between the bearing seat 6 and the carrier roller shaft 9, after the bearing 5 is installed in the sunken groove 21, an inner ring of the bearing 5 is in close contact with the carrier roller shaft 9, and an outer ring of the bearing 5 abuts against the bearing seat 6, so that the bearing seat 6 can rotate relative to the carrier roller shaft 9. The shaft sleeve 4 is sleeved on the roller bearing shaft 9, the right end of the shaft sleeve 4 abuts against the inner ring of the bearing 5, the sealing disc 3 is pressed into the sinking groove 21, the blocking ring part 16 on the sealing disc 3 is clamped between the first flange 10 and the second flange 12 on the shaft sleeve 4, the outer edge of the sealing disc 3 is in close contact with the bearing seat 6, and the stop part 2 is arranged on the left side of the shaft sleeve 4 and abuts against the left end face of the shaft sleeve 4.

The carrier roller rotating assembly of the embodiment of the utility model utilizes the sealing assembly of any one of the embodiments to realize the sealing of the bearing seat 6, prevent dust or water from entering the sink 21, protect the bearing 5 and prolong the service life of the bearing 5. Compared with the prior art, the rotation diameter of the shaft sleeve 4 is relatively small, and the fit clearance between the shaft sleeve 4 and the sealing disc 3 is closer to the carrier roller shaft 9, so that the clearance area formed between the shaft sleeve 4 and the sealing disc 3 is smaller, and the passage of dust and water permeating into the bearing seat 6 is correspondingly reduced; in addition, the first flange 10 and the second flange 12 are protruded out of the outer peripheral surface of the sleeve body 13, and the baffle ring part 16 is matched with the first flange 10 and the second flange 12 to form a sealing structure in the radial direction, so that dust and water can be effectively prevented from permeating into the bearing seat 6, and the carrier roller rotating assembly has better sealing performance.

In some embodiments, the idler roller rotating assembly further comprises a sealing ring 7, the sealing ring 7 is embedded in the sinking groove 21, the sealing ring 7 is positioned on one side of the bearing 5, which faces away from the sealing assembly, and a part of the sealing ring 7 abuts against the idler roller shaft 9. As shown in fig. 5, the sealing ring 7 is arranged on the right side of the bearing 5, the right end of the sealing ring 7 abuts against the inner folded edge of the bearing seat 6, and one part of the sealing ring 7 abuts against the carrier roller shaft 9 to block the gap between the carrier roller shaft 9 and the bearing seat 6, so that sundries are prevented from entering the sink groove 21 from the gap between the carrier roller shaft 9 and the bearing seat 6, the sealing effect is further improved, and the bearing 5 is protected more effectively.

In some embodiments, the stop member 2 is annular and is sleeved on the roller carrier shaft 9, the roller carrier shaft 9 is provided with a shaft clamp 1, the stop member 2 is clamped between the shaft clamp 1 and the shaft sleeve 4, and the outer diameter of the stop member 2 is suitable for shielding the sealing disc 3. As shown in fig. 5, the stop member 2 may be a circular metal sheet, the inner diameter of the stop member 2 is adapted to the carrier roller shaft 9, the outer diameter of the stop member 2 is similar to the size of the sealing disc 3, the stop member 2 not only realizes axial positioning of the shaft sleeve 4, but also protects the sealing disc 3, and the sealing disc 3 can be installed in the sinking groove 21 by knocking the stop member 2 during assembly.

Fig. 6 is a carrier roller to which the carrier roller rotating assembly of any one of the above embodiments is applied, the left and right ends of the carrier roller are symmetrical to each other, only the left half of the carrier roller is sectioned in the figure, a cylinder 8 is sleeved outside a carrier roller shaft 9, both ends of the cylinder 8 are fixedly connected with bearing blocks 6, and the cylinder 8 can rotate around the carrier roller shaft 9.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A seal assembly, comprising:

the shaft sleeve comprises a sleeve body, a first flange and a second flange, a shaft hole penetrating through two ends of the shaft sleeve is formed in the shaft sleeve, and the first flange and the second flange are arranged on the outer peripheral surface of the sleeve body;

the sealed dish, set up the hole that runs through its both ends on the sealed dish, be provided with in the hole with the fender ring portion that sealed dish is connected, the axle sleeve is worn to establish in the hole, keep off ring portion card first flange with between the second flange.

2. The seal assembly of claim 1, wherein the first flange and the second flange each encircle a circumference of the jacket body outer rim.

3. The seal assembly of claim 2, wherein the jacket body has a cross-sectional outer circumferential profile in the shape of a circular ring, and the retainer ring portion is elastically deformable in a radial direction of the jacket body.

4. The seal assembly of claim 1, wherein the first flange is positioned within the bore, and wherein a cross-sectional area of at least a portion of an outer peripheral surface of the first flange increases in a direction toward the second flange.

5. The seal assembly of claim 1, wherein one end of the collar portion abuts the first flange and the other end of the collar portion abuts the second flange.

6. The seal assembly according to any one of claims 1 to 5, wherein the seal disc comprises an inner ring portion, an outer ring portion and a face portion, the outer circumferential profiles of the cross sections of the inner ring portion and the outer ring portion are circular, the outer ring portion is arranged on the outer side of the inner ring portion, the inner ring portion and the outer ring portion are connected through the face portion, the blocking ring portion is arranged on the inner circumferential surface of the inner ring portion, and the blocking ring portion is connected with the inner ring portion.

7. A carrier roller rotating assembly, comprising:

a carrier roller shaft;

the bearing block is sleeved on the roller carrier shaft, and a sink groove is formed between the bearing block and the roller carrier shaft;

the bearing is arranged in the sink groove, and the bearing seat is connected with the roller carrier shaft through the bearing;

the sealing assembly is as claimed in any one of claims 1 to 6, the shaft sleeve is sleeved on the roller carrier shaft, the shaft sleeve and the bearings are sequentially arranged in the length direction of the roller carrier shaft and abut against each other, and the sealing disc is connected with the inner wall of the sinking groove;

the stop piece is arranged on the roller carrier shaft to limit the axial movement of the shaft sleeve.

8. The idler roller rotating assembly of claim 7 further comprising a seal ring embedded within the counterbore, the seal ring being located on a side of the bearing facing away from the seal assembly, a portion of the seal ring abutting the idler shaft.

9. An idler rotation assembly according to claim 7 or claim 8, wherein the stop member is annular and is fitted over the idler shaft, a shaft clip being provided on the idler shaft, the stop member being clipped between the shaft clip and the shaft sleeve.

10. An idler rotation assembly as claimed in claim 9, wherein the outer diameter of the stop member is sized to shield the sealing disc.

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