CN202296247U

CN202296247U - Sealed rotating wheel assembly

Info

Publication number: CN202296247U
Application number: CN2011203518029U
Authority: CN
Inventors: 孙作东; 赵宗本; 于乃颖; 杨先军; 唐明; 李敬英
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-20
Filing date: 2011-09-20
Publication date: 2012-07-04
Anticipated expiration: 2021-09-20

Abstract

The utility model relates to a sealed rotating wheel assembly which comprises a rotating wheel main part, a bearing and a shaft, wherein sealing devices are arranged on two sides of the bearing. The sealed rotating wheel assembly is characterized in that the rotating wheel main part is composed of three parts, namely, an external wheel, an internal wheel and a fixed sealing cover, wherein the fixed sealing cover is fixedly connected with one side of the internal wheel; the external wheel and the internal wheel are connected through a connecting rib; an axial length of the external wheel is more than the axial length of the internal wheel; the bearing is a single bearing and is arranged in the internal wheel; an oil nozzle is arranged on the fixed sealing cover; and the oil nozzle is communicated with a sealing chamber in the fixed sealing cover. Compared with the prior art, the sealed rotating wheel assembly has the advantages of being novel in structure, excellent in rigidity, low in abrasion rate, long in service life and the like.

Description

The sealed type wheel set assembly

Technical field

The utility model relates to a kind of sealed type wheel set assembly, belongs to component of machine.

Background technology

The carrying roller that uses on the equipment such as belt transporter is important transmission and load-carrying parts; Its maintenance rate is very high; This be because general carrying roller all be long, by the hollow roll body structure of bearings at both ends seat supports, during use through regular meeting roll body bending distortion appears, make phenomenons such as bearings at both ends is stuck; Cause carrying roller not rotate or rotate and be obstructed, make the wearing and tearing of roll body case surface also very serious.To these problems, existing solution has: increase backup bearing group, tube wall thickening in that roll body is inner, and external tooth type carrying roller of inventor's invention, sectional type carrying roller or the like.

Summary of the invention

The purpose of the utility model provides a kind of have brand new, good airproof performance, sealed type wheel set assembly that rigidity is big.

The technical scheme of the utility model is: a kind of sealed type wheel set assembly, and it includes runner main part, bearing and axle, and the bearing both sides are provided with sealing arrangement; Characteristics are, described runner main part is made up of three parts, i.e. foreign steamer, interior wheel and the fixing seal lid of captiveing joint with interior wheel one side; Be connected by dowel between foreign steamer and the interior wheel; The axial length of foreign steamer is greater than the axial length of interior wheel, and bearing is that single shaft holds, and the inside of taking turns in being arranged on; Cover at fixing seal and to be provided with oil nozzle, oil nozzle communicates with annular seal space in the fixing seal lid.

The sealing arrangement of said bearing both sides can be following structure; That is, be respectively equipped with seal ring in the both sides of bearing, the seal ring of a side matches to form with the fixing seal lid and is tightly connected; On the seal ring of opposite side, be provided with seal cover cap, the inwall of seal cover cap and interior wheel closely is abutted against.

Compared with present technology, the utlity model has following advantage:

1, the runner main part novel structure of the utility model is equivalent to constitute two roll body structures between foreign steamer and the interior wheel, strengthened the rigidity of whole runner greatly, and resistance to abrasion is good;

2, structures such as runner main part and seal ring, seal cover cap are formed the extraordinary annular seal space of sealing property, have reduced the abrasion factor of bearing and runner;

3, the problem that does not have concentricity man-hour is used and added in the interior the inside of taking turns for single bearing structure, avoids " not dead " phenomenon, prolonged the service life of runner.

Below in conjunction with accompanying drawing and embodiment the utility model is done at length and to be explained.

Description of drawings

A kind of structural representation of Fig. 1-the utility model;

The structural representation of Fig. 2-the utility model seal ring;

The structural representation of Fig. 3-the utility model seal cover cap;

The A-A cutaway view of Fig. 4-Fig. 3.

The explanation of accompanying drawing drawing:

1 runner main part, wheel in the 1-1 foreign steamer, 1-2,1-3 fixing seal lid, 1-4 dowel, 2 seal cover caps, 3 seal rings, 4 bearings, 5,6 oil nozzles.

The specific embodiment

Embodiment 1, and referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, runner main part 1 is made up of three parts; Be foreign steamer 1-1, interior wheel 1-2 and fixing seal lid 1-3; Be connected by dowel 1-4 between foreign steamer 1-1 and the interior 1-2 of wheel, fixing seal lid 1-3 is captiveed joint with the side of the interior 1-2 of wheel, in order to strengthen the rigidity of structure; Can foreign steamer 1-1, interior wheel 1-2, dowel 1-4 and fixing seal lid 1-3 be processed the integrative-structure form; The axial length of foreign steamer 1-1 will be provided with oil nozzle 6 much larger than interior axial length of taking turns 1-2 on fixing seal lid 1-3, oil nozzle 6 communicates with the interior annular seal space of fixing seal lid 1-3.In the interior 1-2 of wheel the inside single bearing 4 is set; The seal ring 3 that the both sides of bearing 4 are respectively equipped with seal ring 3, the one sides formation labyrinth packing that matches with fixing seal lid 1-3, the seal ring 3 of opposite side is provided with seal cover cap 2; Same; Seal cover cap 2 also constitutes labyrinth packing with seal ring 3, and in addition, seal cover cap 2 also is closely to be abutted against to form sealing with the inwall of the interior 1-2 of wheel.

Promptly constitute the sealed type runner of the utility model after the said modules combination, each parts can not freely separate, and inserting axle 5 back runners can rotate freely at bearing 4 centers, and bearing 4 is in one by the leak free cavity, and lubricant can be added by oil nozzle 6 places.

For enhance seal performance, on the contact surface of seal cover cap 2 and seal ring 3, the lip seal structure can be set, as: on the contact surface of seal cover cap 2 and seal ring 3, be provided with protruding lip; Protruding lip both can be arranged on the seal cover cap 2; Also can be arranged on the seal ring 3, effect is to make between seal cover cap 2 and the seal ring 3 to form lip formula contact seal (also claiming friction sealed), realizes double seal in conjunction with between the two labyrinth packing; Guaranteed that bearing is in by in the chamber of strict seal enhance seal performance.

In addition; On the contact surface of seal cover cap 2 and the interior 1-2 of wheel, can be provided with the non-return structure of mutual corresponding matching; For example; In the edge of seal cover cap 2 the non-return piece of several protrusions can be set, corresponding, in the appropriate position of the interior 1-2 of wheel inwall corresponding shallow grooves can be set and match with the non-return piece.Like this, when seal cover cap 2 was installed, the non-return piece can snap in the groove, reminded signal to be in place, and ruthless densification capping 2 downwards again causes unnecessary extrusion damage.Also can adopt bolt (silk) that seal cover cap and interior wheel is fastening.

The sealed type runner of the utility model is specially adapted to the sectional type carrying roller that uses on the equipment such as belt transporter.

Claims

1. sealed type wheel set assembly; It includes runner main part (1), bearing (4) and axle (5), and bearing (4) both sides are provided with sealing arrangement, it is characterized in that; Described runner main part (1) is made up of three parts; Be connected by dowel (1-4) between the fixing seal lid (1-3) that is foreign steamer (1-1), interior wheel (1-2), captives joint with interior wheel (1-2) side, foreign steamer (1-1) and interior wheel (1-2), the axial length of foreign steamer (1-1) is greater than the axial length of interior wheel (1-2); Bearing (4) holds for single shaft; Bearing (4) is located at interior wheel (1-2) the inside, on fixing seal lid (1-3), is provided with oil nozzle (6), and oil nozzle (6) communicates with the interior annular seal space of fixing seal lid (1-3).

2. sealed type wheel set assembly according to claim 1; It is characterized in that; The sealing arrangement of said bearing (4) both sides is, is respectively equipped with seal ring (3) in the both sides of bearing (4), and the seal ring of a side (3) matches with fixing seal lid (1-3); The seal ring of opposite side (3) is provided with seal cover cap (2), and seal cover cap (2) closely is abutted against with the inwall of interior wheel (1-2).