CN207539200U

CN207539200U - New type sealing device

Info

Publication number: CN207539200U
Application number: CN201721338080.7U
Authority: CN
Inventors: 叶锟麟; 胡民生
Original assignee: Shaoguan Chuan Li Machinery Co Ltd
Current assignee: Guangdong Chuangli Intelligent Machinery Equipment Co., Ltd.
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2018-06-26
Anticipated expiration: 2027-10-18

Abstract

The utility model is related to a kind of new type sealing devices, including main shaft, lower bearing end cap is equipped on the outside of main shaft, there is an annular groove on lower bearing end cap, oil return hole communicates therewith, one of outside framework oil seal is additionally provided at lower bearing end cap and checks oil along under spindle outer wall stream, oil scraper ring is equipped in the lower section of outside framework oil seal, oil is thrown to the groove of sealing cover under the action of the centrifugal force, permeability is effectively prevent to be flowed down along main shaft, the dust that sealing cover lower end is additionally provided with the outside framework oil seal together with secondary lip and can prevent remaining permeability from flowing out but also preventing outside enters.It directly fundamentally solves hydraulic oil seal reliability and service life a series of problems under operating mode harsh conditions, greatly improves equipment performance, improve the economic benefit and service life of equipment.

Description

New type sealing device

Technical field

The utility model belongs to sand making machine technical field, is related to a kind of new type sealing device.

Background technology

At present, the sealing reliability of sand making machine becomes the problem of very crucial, and hydraulic oil seal is not allow for any race Water clock is emitted, is not allow for any permeability phenomenon.But reality is oil leak that phenomenon often occurs, it is difficult to basic solution Certainly, mainly structure design is undesirable, imprecision, and it is unreliable to cause to seal, and seal life is short, seriously affects production.

Utility model content

In order to overcome the disadvantages mentioned above of the prior art, the utility model provides a kind of new type sealing device, it solves close The problem of sealing reliability and service life, eliminates the appearance of any permeability.

Technical solution is used by the utility model solves its technical problem：A kind of new type sealing device, including main shaft, Lower bearing end cap is equipped on the outside of main shaft, has an annular groove on lower bearing end cap, oil return hole communicates therewith, in lower bearing end cap Place be additionally provided with one of outside framework oil seal check oil flowed down along spindle outer wall, the lower section of outside framework oil seal be equipped with oil scraper ring, centrifuging Oil under power effect is thrown to the groove of sealing cover, permeability is effectively prevent to be flowed down along main shaft, sealing cover lower end is additionally provided with one of band The dust that the outside framework oil seal for having secondary lip can prevent remaining permeability from flowing out but also preventing outside enters.

The oil scraper ring is made of 70 degree of polyurethane, can easy disassembly.

The groove in a ring, and passes through 8 apertures of φ and is connected with oil return hole, into oil return pipe.

The outside framework oil seal contacts with main shaft and adds bushing.

It is sealed in the end face of the lower bearing end cap and sealing cover and radial direction using O-ring seals.

The beneficial effects of the utility model are：It is reliable directly fundamentally to solve hydraulic oil seal under operating mode harsh conditions Property and service life a series of problems, greatly improve equipment performance, improve the economic benefit and service life of equipment.

Description of the drawings

Fig. 1 is the utility model structure diagram.

In figure：1- main shafts, 2- lower bearing end caps, 3-O shape sealing rings, 4- sealing covers, 5- oil scraper rings, 6- bushings, 7- skeletons Oil sealing, 8- carry the outside framework oil seal of secondary lip.

Specific embodiment

The utility model is further illustrated with reference to the accompanying drawings and examples.

Referring to Fig. 1, a kind of new type sealing device, including main shaft 1,1 outside of main shaft is equipped with lower bearing end cap 2, in lower bearing End cap 2 has an annular groove above, and oil return hole communicates therewith, and one of outside framework oil seal 7 is additionally provided at lower bearing end cap 2 and checks oily edge It 1 outer wall of main shaft to flow down, is equipped with oil scraper ring 5 in the lower section of outside framework oil seal 7, oil is thrown to sealing cover 4 under the action of the centrifugal force Groove effectively prevent permeability to be flowed down along main shaft 1, and the outside framework oil seal 8 that 4 lower end of sealing cover is additionally provided with together with secondary lip can be prevented Only remaining permeability outflow can prevent the dust in outside from entering again.

The oil scraper ring 5 is made of 70 degree of polyurethane, can easy disassembly.

The outside framework oil seal 7 contacts with main shaft 1 and adds bushing 6.

It is sealed in the end face of the lower bearing end cap 2 and sealing cover 4 and radial direction using O-ring seals 3.

The utility model directly fundamentally solves hydraulic oil seal reliability and service life under operating mode harsh conditions A series of problems greatly improves equipment performance, improves the economic benefit and service life of equipment.

Claims

1. a kind of new type sealing device, including main shaft, it is characterised in that：Lower bearing end cap is equipped on the outside of main shaft, in lower axle socket end There is an annular groove in the face of covering, and oil return hole communicates therewith, and one of outside framework oil seal is additionally provided at lower bearing end cap and checks oil along master Axis outer wall flows down, and is equipped with oil scraper ring in the lower section of outside framework oil seal, oil is thrown to the groove of sealing cover under the action of the centrifugal force, effectively Prevent permeability from being flowed down along main shaft, the outside framework oil seal that sealing cover lower end is additionally provided with together with secondary lip can prevent remaining permeability stream Go out and can prevent the dust in outside from entering.

2. new type sealing device as described in claim 1, it is characterised in that：The oil scraper ring is made of 70 degree of polyurethane, energy Easy disassembly.

3. new type sealing device as described in claim 1, it is characterised in that：The groove in a ring, and passes through 8 apertures of φ with returning Oilhole is connected, into oil return pipe.

4. new type sealing device as described in claim 1, it is characterised in that：The outside framework oil seal contacts with main shaft and adds lining Set.

5. new type sealing device as described in claim 1, it is characterised in that：In the end face of the lower bearing end cap and sealing cover and Radially it is sealed using O-ring seals.