CN203439648U

CN203439648U - Carrying roller

Info

Publication number: CN203439648U
Application number: CN201320557573.5U
Authority: CN
Inventors: 邹益科
Original assignee: Hunan New Material Co Ltd Of Permanent Section
Current assignee: Hunan New Material Co Ltd Of Permanent Section
Priority date: 2013-09-09
Filing date: 2013-09-09
Publication date: 2014-02-19
Anticipated expiration: 2023-09-09

Abstract

The utility model relates to a carrying roller. The carrying roller comprises a roller shaft, a roll, bearings and bearing blocks, wherein the roller shaft penetrates through the bearings and is connected with the roll through the bearing blocks, a bearing positioning clamping groove is formed in the internally-installed side wall end of a shaft through hole of each bearing block, an annular internally-suspended wing plate is arranged at an aperture in the externally-installed side wall end of the shaft through hole of each bearing block, and the edges of each annular internally-suspended wing plate stretch into and out of the corresponding through hole to form protruding rings. The carrying roller is characterized in that each protruding ring inside the corresponding through hole is provided with an annular dustproof ring with a U-shaped section, the outer annular wall of each protruding ring outside the corresponding through hole has an external expansion taper and is provided with an annular waterproof cover with a U-shaped section, and the inner side of the outer annular wall of each waterproof cover makes contact with the outer ring wall line of the protruding ring outside the corresponding through hole. Because the carrying roller is provided with the dustproof rings and the waterproof covers simultaneously, assembly of the stepped shaft is facilitated, a sealing device effectively prevents external water, dust and air from entering the carrying roller, and rotating resistance of the carrying roller is reduced; meanwhile service life of the carrying roller is prolonged, and therefore purposes of the carrying roller are achieved.

Description

A kind of carrying roller

Technical field

The utility model relates to a kind of carrying roller.

Background technology

Traditional carrying roller, comprise roll shaft, roller, bearing seat, outer gland sealing lid and exterior seal ring, two of the outer seal cover cap of labyrinth seal of carrying roller and exterior seal rings play mutual embedding along carrying roller to the boss forming and form, due to gravitational principle, carrying roller is when High Rotation Speed, trickle, dust and coal slime etc. still can progress into along the maze-type structure of mutual embedding in the middle of seal ring, until the bearing in carrying roller is polluted, cause carrying roller to lose efficacy.Therefore, be necessary this technology to improve.

Utility model content

The features such as technical problem to be solved in the utility model is, a kind of carrying roller is provided, and has novel structure simple, and good seal performance is convenient to change, and cost is lower.

The utility model is to realize like this, a kind of carrying roller, comprise roll shaft, roller, bearing and bearing seat, roll shaft is through bearing, by bearing seat, be connected with roller, bearing seat comprises built-in sidewall, external sidewall and ring wall, the shaft core position of bearing seat is provided with axle through hole, axle has bearing locating groove by the built-in sidewall end of through hole, axle is provided with and in annular, chooses wing plate with the external sidewall end of through hole aperture place, in annular, choose wing plate plate along being extended with bulge loop respectively in through hole He outside through hole, it is characterized in that being provided with on through hole internal projecting ring the ring shape dust ring of channel section, the external annulus of the described outer bulge loop of through hole is provided with and extends out tapering, on it, be provided with the ring shape watertight cover of channel section, the external annulus inner side of watertight cover contacts with the external annulus line of the outer bulge loop of through hole.

On described bearing seat ring wall, be provided with ring taper non-return convex clip, the inwall relevant position at roller two ends is provided with annular groove.

Described ring taper non-return convex clip and the ring wall between built-in sidewall end are provided with reinforced rib.

Described reinforced rib is at least two.

Described bearing seat High molecular material is made.

Described ring wall is chosen external sidewall, and the height of bridging piece is not less than the height after the outer bulge loop assembling of through hole watertight cover.

During dust ring assembling, leave assembly clearance.

Described dust ring or watertight cover adopt flexible material to make.

Sealing arrangement adopts at least one connection mode in cementing connection or interference fit connection or riveted joint or clamping to be connected with carrying roller roller.

The utility model, when implementing, first assembles the ring shape dust ring of channel section on bearing seat on through hole internal projecting ring, then bearing is fixed in bearing locating groove, then assembles carrying roller roller and advanced axle, finally assembles watertight cover; Roller and sealing arrangement adopt cementing be connected or interference fit connection or riveted joint or clamping at least one connection mode, be assembled together, dust ring and water proof ring connect as one by flush fit and advanced axle, and the external annulus of watertight cover inner side contacts with the external annulus line of the outer bulge loop of through hole simultaneously.When carrying roller rotates, bearing seat rotates along axle center, and watertight cover adopts line to contact with the outer bulge loop of through hole, not only make its contact surface minimum, reduced friction each other when carrying roller rotates, and watertight cover adopts flexible material to make, and makes the wearing and tearing of accessory reduce to minimum.

Adopt the carrying roller of technique scheme, because it is provided with dust ring and watertight cover simultaneously, the not only assembling of more convenient advanced axle, actv. prevents that outside water, dust and gas from entering the sealing arrangement of carrying roller, and has reduced the rotational resistance of carrying roller; Extend the service life of carrying roller simultaneously, thereby reached the purpose of this utility model.

Accompanying drawing explanation

Fig. 1 is the integral structure schematic diagram of the utility model carrying roller;

Fig. 2 is the mounting structure schematic diagram of the utility model bearing seat;

Fig. 3 is the structure enlarged drawing of the utility model Fig. 2;

Fig. 4 is the structural representation of the utility model bearing seat;

Fig. 5 is the built-in side wall surface planar view of the utility model Fig. 4;

Fig. 6 is the structural representation of the utility model bearing seat.

The specific embodiment

Under by reference to the accompanying drawings and embodiment, the utility model is further elaborated.

As Fig. 1, 2, 4, shown in 6, a kind of carrying roller, comprise roll shaft 17, roller 15, bearing 16 and bearing seat 1, roll shaft 17 is through bearing 16, by bearing seat 1, be connected with roller 15, bearing seat 1 comprises built-in sidewall 2, external sidewall 3 and ring wall 4, the shaft core position of bearing seat 1 is provided with through hole 5 for axle, axle has bearing locating groove 6 by the built-in sidewall end of through hole 5, axle is provided with and in annular, chooses wing plate 7 with the external sidewall end of through hole 5 aperture place, in annular, choose wing plate 7 plates along being extended with bulge loop respectively in through hole He outside through hole, on through hole internal projecting ring 8, be provided with the ring shape dust ring 10 of channel section, the external annulus of the outer bulge loop 9 of through hole is provided with and extends out tapering, on it, be provided with the ring shape watertight cover 11 of channel section, the external annulus inner side of watertight cover 11 contacts with the external annulus line of the outer bulge loop 9 of through hole.

As shown in Figure 1, bearing seat 1 adopts interference fit to be connected with carrying roller roller 15 with snap fit.

As shown in Fig. 1,4,5,6, on described bearing seat 1 ring wall, be provided with ring taper non-return convex clip 12, as shown in Figure 1, the inwall relevant position at roller 15 two ends is provided with annular groove 18.

As shown in Figure 5, the ring wall 4 between ring taper non-return convex clip 12 and built-in sidewall 2 ends is provided with reinforced rib 13, and reinforced rib 13 is 12.

As shown in Fig. 1,4,5,6, bearing seat 1 is made for High molecular material.

As shown in Fig. 1,4,6, ring wall 4 is chosen external sidewall 3, and the height of bridging piece 14 is greater than the height after the outer bulge loop 9 assembling watertight coveres 11 of through hole.

As shown in Fig. 1,2,6, during dust ring 10 assembling, leave assembly clearance.

As shown in Fig. 1,2,3,6, dust ring 10 and watertight cover 11 adopt flexible material to make.

Claims

1. a carrying roller, comprise roll shaft, roller, bearing and bearing seat, roll shaft is through bearing, by bearing seat, be connected with roller, bearing seat comprises built-in sidewall, external sidewall and ring wall, the shaft core position of bearing seat is provided with axle through hole, axle has bearing locating groove by the built-in sidewall end of through hole, axle is provided with and in annular, chooses wing plate with the external sidewall end of through hole aperture place, in annular, choose wing plate plate along being extended with bulge loop respectively in through hole He outside through hole, it is characterized in that being provided with on through hole internal projecting ring the ring shape dust ring of channel section, the external annulus of the described outer bulge loop of through hole is provided with and extends out tapering, on it, be provided with the ring shape watertight cover of channel section, the external annulus inner side of watertight cover contacts with the external annulus line of the outer bulge loop of through hole.

2. carrying roller according to claim 1, is characterized in that bearing seat adopts at least one connection mode in cementing connection or interference fit connection or riveted joint or clamping to be connected with carrying roller roller.

3. carrying roller according to claim 2, is characterized in that being provided with ring taper non-return convex clip on described bearing seat ring wall, and the inwall relevant position at roller two ends is provided with annular groove.

4. carrying roller according to claim 3, is characterized in that described ring taper non-return convex clip and the ring wall between built-in sidewall end are provided with reinforced rib.

5. carrying roller according to claim 4, is characterized in that described reinforced rib is at least two.

6. according to the carrying roller described in the arbitrary claim of claim 1 to 4, it is characterized in that described bearing seat or roller are that High molecular material is made.

7. carrying roller according to claim 6, it is characterized in that described ring wall chooses external sidewall, and the height of bridging piece is not less than the height after the outer bulge loop assembling of through hole watertight cover.

8. carrying roller according to claim 7, leaves assembly clearance while it is characterized in that dust ring assembling.

9. carrying roller according to claim 7, is characterized in that described dust ring or watertight cover adopt flexible material to make.