Silent carrier roller sealing structure

Abstract

The utility model discloses a mute carrier roller sealing structure, which is characterized in that a sealing assembly positioned on the axial outer side of a bearing is arranged between a bearing seat and a roller shaft, the sealing assembly comprises a sealing outer cover, a sealing ring group, a sealing chuck and a shaft sleeve, and the shaft sleeve is sleeved on a shaft body of the roller shaft and positioned on the axial outer side of the bearing; the end face of the end, close to the bearing, of the shaft sleeve is matched with the bearing to form an oil storage groove used for storing lubricating grease, and a plurality of protruding blocks used for extruding and injecting the lubricating grease in the oil storage groove into the bearing are evenly distributed on the end face of the end, close to the bearing, of the shaft sleeve. A sealing ring set arranged on the shaft sleeve in a sleeving mode is arranged between the sealing outer cover and the shaft sleeve, and a sealing chuck used for limiting, clamping and blocking the sealing ring set is arranged at the end, close to the bearing, of the sealing outer cover. Compared with a traditional carrier roller sealing structure, the carrier roller sealing structure has the advantages that the sealing effect of the carrier roller is greatly improved, and the service life of the carrier roller is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bearing assembly technical field for carrier roller, especially relates to a mute carrier roller sealing structure. BACKGROUND

[0002] The carrier roller is an important component on the belt conveyor, and the performance of the carrier roller directly affects the power consumption, belt tension and service life of the belt conveyor. Currently, the carrier roller used on the belt conveyor is a metal carrier roller. In the use process, it is found that the metal carrier roller has the defects of large runout and loud noise, which brings adverse effects on the work and life of the belt profile workers and nearby residents.

[0003] Especially when working in harsh environments, under the multiple effects of corrosion and wear, its service life becomes shorter and the noise becomes louder. According to the industry development trend, the hoisting and transportation industry is developing towards large-scale, high efficiency, maintenance-free and energy saving. The current metal carrier roller obviously cannot meet the trend of the development of the industry, which becomes a hindrance to the development of the industry. SUMMARY

[0004] In order to overcome the defects in the background art, the utility model discloses a mute carrier roller sealing structure, compared with the traditional carrier roller sealing structure, not only greatly increases the sealing effect of the carrier roller, but also effectively prolongs the service life of the carrier roller.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A mute carrier roller sealing structure, comprising a roller and a roller shaft coaxially penetrating the roller, the shaft body of the roller shaft near the end of the roller is sleeved with a bearing seat, the bearing seat is provided with a bearing sleeved on the shaft body of the roller shaft, a sealing assembly is arranged between the bearing seat and the roller shaft and located on the outer side of the bearing in the axial direction, the sealing assembly comprises a sealing cover, a sealing ring group, a sealing chuck and a shaft sleeve, the shaft sleeve is sleeved on the shaft body of the roller shaft and located on the outer side of the bearing in the axial direction, the end face of the shaft sleeve near the bearing is matched with the bearing to form an oil storage groove for storing lubricating grease, a plurality of protruding blocks for extruding and injecting the lubricating grease in the oil storage groove into the bearing are uniformly distributed on the end face of the shaft sleeve near the bearing, the radial outer side of the shaft sleeve is provided with a sealing cover sleeved on the shaft sleeve, a sealing ring group is arranged between the sealing cover and the shaft sleeve and sleeved on the shaft sleeve, and a sealing chuck is arranged on one end of the sealing cover near the bearing for limiting and clamping the sealing ring group.

[0007] Further, a clamping spring is arranged in the bearing seat and located on the outer side of the bearing in the axial direction for limiting and fixing the bearing.

[0008] Further, a sealing gasket is arranged in the bearing seat and located on the inner side of the bearing in the axial direction and sleeved on the shaft body of the roller shaft.

[0009] Further, a bearing protection sleeve is arranged on the outer ring surface of the bearing between the bearing seat and the bearing.

[0010] Further, an inner folding edge for supporting and protecting the bearing is arranged on the inner end of the inner wall of the bearing protection sleeve.

[0011] Further, a circumferential step is arranged on the outer end of the outer wall of the bearing protection sleeve.

[0012] Further, double-circle process holes are arranged on the circumferential surface of the inner end surface of the bearing seat.

[0013] Further, the protruding block is a circular-arc protruding structure.

[0014] Further, the bearing seat and the sealing outer cover are formed by injection molding of polypropylene, ABS or nylon.

[0015] Further, the sealing ring set and the sealing gasket are formed by injection molding of elastomer, PVC or rubber.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The sealing ring set and the sealing outer cover are combined together by the sealing chuck, the sealing ring set is prevented from directly contacting the shaft sleeve, the sealing ring set is protected, and the rotating resistance is reduced.

[0018] The oil storage groove and the lubricating grease in the oil storage groove not only realize the sealing protection of the bearing, but also cut off the transmission of the rotating sound of the bearing.

[0019] The protruding block is arranged, and the lubricating grease in the oil storage groove is continuously fed into the bearing groove by the protruding block with the rotation of the roller and the bearing, so that the bearing is permanently lubricated, the sound is smaller, and the service life is longer.

[0020] The circumferential step is arranged on the outer wall of the bearing protection sleeve, the traditional process hole structure is avoided, the lubricating grease is prevented from entering the process hole and causing waste, and the circumferential step structure can better protect the bearing than the traditional process hole structure.

[0021] The double-circle process holes are arranged on the back surface of the bearing seat, the shrinkage defects of the injection molding parts are improved while the raw materials are saved, and the load bearing is enhanced.

[0022] Compared with the traditional roller sealing structure, the utility model not only greatly increases the sealing effect of the roller, but also effectively prolongs the service life of the roller, and has high economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model discloses a structure schematic view;

[0024] Figure 2 is an exploded schematic view of the present application;

[0025] Figure 3 is a schematic view of the shaft sleeve structure of the present application;

[0026] Figure 4 is a schematic view of the bearing protection sleeve structure of the present application;

[0027] Figure 5 is a schematic view of the inner end surface structure of the bearing seat of the present application;

[0028] Figure 6 is a schematic view of the assembly of the sealing assembly of the present application.

[0029] In the figure: 1, roller shaft; 2, roller; 3, bearing seat; 4, sealing assembly; 5, bearing; 6, sealing outer cover; 7, sealing ring group; 8, sealing chuck; 9, shaft sleeve; 10, clamp spring; 11, bearing protection sleeve; 12, sealing gasket; 13, protruding block; 14, circumferential step; 15, inner folding edge; 16, double-ring process hole; 17, oil storage groove. DETAILED DESCRIPTION

[0030] The technical scheme of the present application will be described below in conjunction with the drawings in the embodiments of the present application, and in the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or position relationship, it is only corresponding to the drawings of the present application, and is not intended to indicate or imply that the device or element must have a particular orientation.

[0031] Please refer to the drawings in the description Figures 1-6 The present application provides a technical scheme:

[0032] Example one, a mute carrier roller sealing structure, comprising a roller 2 and a roller shaft 1 coaxially penetrating the roller 2, the roller shaft 1 is sleeved with a bearing seat 3 on the shaft body near the end of the roller 2, the inner end face of the bearing seat 3 is provided with a double-ring process hole 16 along the circumferential direction, which saves raw materials while improving the shrinkage defect of injection molding parts and enhancing the bearing capacity, the bearing seat 3 is provided with a bearing 5 sleeved on the shaft body of the roller shaft 1, a sealing assembly 4 is arranged between the bearing seat 3 and the roller shaft 1 and located on the outer side of the bearing 5 in the axial direction, specifically, the sealing assembly 4 comprises a sealing cover 6, a sealing ring group 7, a sealing chuck 8 and a shaft sleeve 9, the shaft sleeve 9 is sleeved on the shaft body of the roller shaft 1 and located on the outer side of the bearing 5 in the axial direction, the end face of the shaft sleeve 9 near the bearing 5 cooperates with the bearing 5 to form an oil storage groove 17 for storing lubricating grease, a plurality of protruding blocks 13 for extruding and injecting the lubricating grease in the oil storage groove 17 into the bearing 5 are uniformly distributed on the end face of the shaft sleeve 9 near the bearing 5, the protruding blocks 13 are circular protruding structures, during the operation of the carrier roller, the protruding blocks 13 on the shaft sleeve 9 can continuously feed the lubricating grease in the oil storage groove 17 into the groove of the bearing 5, so that the bearing 5 is permanently lubricated, the sound is smaller, and the service life is longer.

[0033] The radial outer side of the shaft sleeve 9 is provided with a sealing cover 6 sleeved on the shaft sleeve 9, the sealing cover 6 and the shaft sleeve 9 are provided with a sealing ring group 7 sleeved on the shaft sleeve 9, the sealing ring group 7 can be stacked by four sealing rings, the end of the sealing cover 6 near the bearing 5 is provided with a sealing chuck 8 for limiting and clamping the sealing ring group 7, the sealing chuck 8 under the sealing ring group 7 combines the sealing ring group 7 and the sealing cover 6 tightly, avoids the direct contact between the sealing ring group 7 and the shaft sleeve 9, protects the sealing ring group 7, and reduces the rotating resistance.

[0034] Example two, in order to realize the limiting sealing protection of the bearing 5, a circlip 10 is arranged in the bearing seat 3 and located on the outer side of the bearing 5 in the axial direction and used for limiting and fixing the bearing 5, the bearing seat 3 is provided with a sealing gasket 12 sleeved on the shaft body of the roller shaft 1 and located on the inner side of the bearing 5 in the axial direction, a bearing protection sleeve 11 is arranged between the bearing seat 3 and the bearing 5 and sleeved on the outer ring face of the bearing 5, the inner wall of the bearing protection sleeve 11 is provided with an inner folding edge 15 for supporting and protecting the bearing 5, the outer wall of the bearing protection sleeve 11 is provided with a circumferential step 14 arranged along the circumferential direction of the bearing protection sleeve 11, the bearing protection sleeve 11 is changed from the original surface process hole to the circumferential step 14, which avoids the waste caused by the lubricating grease in the oil storage groove 17 entering the process hole during the use of the bearing protection sleeve 11 with the traditional process hole structure, and the bearing protection sleeve 11 with the circumferential step 14 structure has better strength and can better protect the bearing 5.

[0035] Example three, in order to facilitate the processing and production of the sealing assembly 4, the bearing seat 3 and the sealing cover 6 are formed by injection molding of polypropylene, ABS or nylon, and the sealing ring group 7 and the sealing gasket 12 are formed by injection molding of elastomer, PVC or rubber.

[0036] The utility model is not limited to the details of the above exemplary embodiments, which are apparent to those skilled in the art, and the utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, no matter from which point of view, the above embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, and any reference signs in the claims should not be regarded as limiting the content of the involved claims.

Claims

1. A mute roller sealing structure, comprising a roller (2) and a roller shaft (1) penetrating through the roller (2) coaxially, a bearing seat (3) is sleeved on the shaft body of the roller shaft (1) near the end of the roller (2), and a bearing (5) sleeved on the shaft body of the roller shaft (1) is arranged in the bearing seat (3), characterized in that: The bearing seat (3) and the roller shaft (1) are provided with a sealing assembly (4) located on the outer side of the bearing (5) in the axial direction, the sealing assembly (4) comprises a sealing outer cover (6), a sealing ring group (7), a sealing chuck (8) and a shaft sleeve (9), the shaft sleeve (9) is sleeved on the shaft body of the roller shaft (1) and located on the outer side of the bearing (5) in the axial direction, the end face of the shaft sleeve (9) close to the bearing (5) and the bearing (5) cooperate to form an oil storage groove (17) for storing lubricating grease, the end face of the shaft sleeve (9) close to the bearing (5) is uniformly distributed with a plurality of protruding blocks (13) for extruding and injecting the lubricating grease in the oil storage groove (17) into the bearing (5), the radial outer side of the shaft sleeve (9) is provided with the sealing outer cover (6) sleeved on the shaft sleeve (9), the sealing outer cover (6) and the shaft sleeve (9) are provided with the sealing ring group (7) sleeved on the shaft sleeve (9), and the end of the sealing outer cover (6) close to the bearing (5) is provided with the sealing chuck (8) for limiting and clamping the sealing ring group (7).

2. The silent idler seal according to claim 1, wherein: The bearing seat (3) is provided with a clamping spring (10) located on the outer side of the bearing (5) in the axial direction and used for limiting and fixing the bearing (5).

3. The silent idler seal according to claim 1, wherein: The bearing seat (3) is provided with a sealing gasket (12) sleeved on the shaft body of the roller shaft (1) and located on the inner side of the bearing (5) in the axial direction.

4. The silent idler seal of claim 1, wherein: The bearing seat (3) and the bearing (5) are provided with a bearing protection sleeve (11) sleeved on the outer ring surface of the bearing (5).

5. The silent idler seal according to claim 4, wherein: The inner end of the inner wall of the bearing protection sleeve (11) is provided with an inner folding edge (15) for supporting and protecting the bearing (5).

6. The silent idler seal of claim 5, wherein: The outer end of the outer wall of the bearing protection sleeve (11) is provided with a circumferential step (14) arranged along the circumference of the bearing protection sleeve (11).

7. The silent idler seal of claim 1, wherein: The inner end face of the bearing seat (3) is provided with a double-ring process hole (16) arranged along the circumference thereof.

8. The silent idler seal of claim 1, wherein: The protruding block (13) is a circular arc protruding structure.

9. The silent idler seal of claim 1, wherein: The bearing seat (3) and the sealing outer cover (6) are both formed by injection molding of polypropylene, ABS or nylon.

10. The silent idler seal of claim 3, wherein: The sealing ring group (7) and the sealing gasket (12) are both formed by injection molding of elastomer, PVC or rubber.

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