CN209701629U - A kind of micro- resistance high-efficiency sealing idler roller - Google Patents

Abstract

The utility model discloses a kind of micro- resistance high-efficiency sealing idler rollers, including cylinder skin and bearing block, the bearing block is fixedly mounted on the inside of a skin, the inside of the bearing block is equipped with bearing, the side of the bearing inner race is provided with inner seal ring, the inner seal ring includes A bulge loop and B bulge loop, and exterior seal ring is fitted on the inner seal ring and the two relatively rotates, the exterior seal ring includes A groove, B groove and C bulge loop.A kind of micro- resistance high-efficiency sealing idler roller described in the utility model, it is fitted together equipped with the combination by groove and bulge loop, inside forms multiple groups labyrinth type card slot, good airproof performance, inner seal ring and exterior seal ring utilize smooth circular arc mating surface after assembling, make to relatively rotate between the two with minimum resistance；Lubricating oil can be stored, and bearing is lubricated by fuel-displaced seam spilling, reduces the friction of Bearing inner, extends the service life of bearing, be applicable in different operating situation, bring better prospect of the application.

Description

A kind of micro- resistance high-efficiency sealing idler roller

Technical field

The utility model relates to mining equipment field, in particular to a kind of micro- resistance high-efficiency sealing idler roller.

Background technique

Carrying roller is the important component of belt conveyor, and type is more, and quantity is big, can be with support belt and weight of material, it The 35% of a belt conveyor totle drilling cost is accounted for, produces 70% or more resistance, therefore the quality of carrying roller is particularly important, carrying roller Generally there are two kinds of materials of steel and plastics；There are following one or several kinds of defects for existing market upper belt machine carrying roller: support Roller sealing element quantity is more, and structure is complicated；Lubricant effect is undesirable；It cannot eliminate and alter axis phenomenon；Water proof and dust proof effect is undesirable；Support Roller rotary resistance is big.Certain adverse effect is brought in use, for this purpose, it is proposed that a kind of micro- resistance high-efficiency sealing Carrying roller.

Utility model content

The main purpose of the utility model is to provide a kind of micro- resistance high-efficiency sealing idler rollers, can effectively solve background skill The problems in art.

To achieve the above object, the technical solution that the utility model is taken are as follows:

A kind of micro- resistance high-efficiency sealing idler roller, including cylinder skin and bearing block, the bearing block are fixedly mounted on the interior of a skin Portion, the inside of the bearing block are equipped with bearing, and the side of the bearing inner race is provided with inner seal ring, the inner seal ring packet A bulge loop and B bulge loop are included, exterior seal ring is fitted on the inner seal ring and the two relatively rotates, the exterior seal ring includes A Groove, B groove and C bulge loop, the bosom position of the cylinder skin and sequentially pass through bearing, exterior seal ring is provided with axis, described The inner end of bearing is fixedly installed with No.1 limit circlip, and the outer end of the exterior seal ring is equipped with No. two limit circlips；

The contact surface that the inner seal ring and exterior seal ring are rotatably assorted is provided with circular arc mating surface, the inner seal ring and Exterior seal ring assembling after inside formed store oil space, the outside in the store oil space and be located at inner seal ring and exterior seal ring Between contact gap be provided with fuel-displaced seam.

Preferably, the bearing uses deep groove ball bearing, symmetrically offers two groups of rectangles on the C bulge loop of the exterior seal ring Opening fuel feeding outflow is lubricated the bearing.

Preferably, the inner seal ring further includes C groove, and C groove is located at the medial surface of B bulge loop, and the A groove is located at outer The outermost of sealing ring, the C bulge loop are located at the middle position of exterior seal ring, the B groove be in A groove and C bulge loop it Between.

Preferably, the A bulge loop and A groove are adapted, and the B bulge loop and B groove are adapted, the C bulge loop and C groove It is adapted.

Preferably, design has chamfering on the inside of the inner termination of the exterior seal ring, and the bearing block collar extension is broadening formation.

Preferably, the outer end of the exterior seal ring and the inner end of bearing offer the mounting groove for acting on circlip, Lubricant grease is stored in the store oil space.

Preferably, the exterior seal ring and axis, inner seal ring and bearing block are all made of interference fit, the exterior seal ring with Cooperation precision between inner seal ring, exterior seal ring and axis, inner seal ring and bearing block is ± 0.1mm.

Preferably, the diameter of the axis can be divided into φ 20, φ 25, φ 30, φ 35, φ 40, φ 45,50 series of φ.

Compared with prior art, the utility model has the following beneficial effects: micro- resistance high-efficiency sealing idler roller；By setting Inner seal ring, exterior seal ring, circular arc mating surface are set, is fitted together by the combination of groove and bulge loop, inside forms more Group labyrinth type card slot, good airproof performance, inner seal ring and exterior seal ring utilize smooth circular arc mating surface after assembling, make between the two It is relatively rotated with minimum resistance, guarantees the normal use of axis and bearing；Pass through setting store oil space and fuel-displaced seam；It can store Lubricating oil, and bearing is lubricated by fuel-displaced seam spilling, reduce the friction of Bearing inner, extend the service life of bearing, Circlip and No. two limit circlips are limited by setting No.1, plays the role of limit, the component on axis is prevented to be subjected to displacement, occur Alter axis phenomenon；Entire idler structure is simple, sealing element reasonable quantity, and the effect used is more preferable relative to traditional approach.

Detailed description of the invention

Fig. 1 is a kind of overall structure diagram of micro- resistance high-efficiency sealing idler roller of the utility model；

Fig. 2 is a kind of perspective view of the explosion of micro- resistance high-efficiency sealing idler roller of the utility model；

Fig. 3 is a kind of structure chart of micro- resistance high-efficiency sealing idler roller inner seal ring of the utility model；

Fig. 4 is a kind of structure chart of micro- resistance high-efficiency sealing idler roller exterior seal ring of the utility model；

Fig. 5 is the section view after a kind of micro- resistance high-efficiency sealing idler roller inner seal ring of the utility model and exterior seal ring combination Figure.

In figure: 1, cylinder skin；2, bearing block；3, bearing；4, inner seal ring；41, A bulge loop；42, B bulge loop；5, exterior seal ring； 51, A groove；52, B groove；53, C bulge loop；6, axis；7, No.1 limits circlip；8, No. two limit circlips；9, circular arc mating surface； 10, store oil space；11, fuel-displaced seam.

Specific embodiment

To be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, below In conjunction with specific embodiment, the utility model is further described.

As shown in Figs. 1-5, a kind of micro- resistance high-efficiency sealing idler roller, including cylinder skin 1 and bearing block 2, bearing block 2 are fixedly mounted In the inside of cylinder skin 1, the inside of bearing block 2 is equipped with bearing 3, and the side of 3 inner ring of bearing is provided with inner seal ring 4, interior sealing Circle 4 includes A bulge loop 41 and B bulge loop 42, and exterior seal ring 5 is fitted on inner seal ring 4 and the two relatively rotates, exterior seal ring 5 Including A groove 51, B groove 52 and C bulge loop 53, the bosom position of cylinder skin 1 simultaneously sequentially passes through bearing 3, the setting of exterior seal ring 5 There is axis 6, the inner end of bearing 3 is fixedly installed with No.1 limit circlip 7, and the outer end of exterior seal ring 5 is equipped with No. two limit circlips 8；

The contact surface that inner seal ring 4 and exterior seal ring 5 are rotatably assorted is provided with circular arc mating surface 9, inner seal ring 4 and outer close Seal 5 assemble after inside formed store oil space 10, the outside in store oil space 10 and be located at inner seal ring 4 and exterior seal ring 5 Between contact gap be provided with it is fuel-displaced seam 11；

Bearing 3 uses deep groove ball bearing, symmetrically offers two groups of rectangular apertures for oil stream on the C bulge loop 53 of exterior seal ring 5 Bearing 3 is lubricated out；Inner seal ring 4 further includes C groove, and C groove is located at the medial surface of B bulge loop 42, and A groove 51 is located at outer The outermost of sealing ring 5, C bulge loop 53 are located at the middle position of exterior seal ring 5, and B groove 52 is in A groove 51 and C bulge loop 53 Between；A bulge loop 41 and A groove 51 are adapted, and B bulge loop 42 and B groove 52 are adapted, and C bulge loop 53 and C groove are adapted；It is outer close Design has chamfering on the inside of the inner termination of seal 5, and 2 collar extension of bearing block is broadening formation；The outer end of exterior seal ring 5 and bearing 3 it is interior End offers the mounting groove for acting on circlip, is stored with lubricant grease in store oil space 10；Exterior seal ring 5 and axis 6, interior sealing Circle 4 is all made of interference fit, exterior seal ring 5 and inner seal ring 4, exterior seal ring 5 and axis 6, inner seal ring 4 and axis with bearing block 2 Holding the cooperation precision between seat 2 is ± 0.1mm；The diameter of axis 6 can be divided into φ 20, φ 25, φ 30, φ 35, φ 40, φ 45,50 series of φ.

It should be noted that the utility model is a kind of micro- resistance high-efficiency sealing idler roller, entire carrying roller is by cylinder skin 1, bearing Seat 2, bearing 3, inner seal ring 4, exterior seal ring 5, axis 6, No.1 limit circlip 7 and No. two limit circlip 8 compositions, exterior seal ring 5 It is fitted together with inner seal ring 4 by the combination of groove and bulge loop, inner seal ring 4 and exterior seal ring 5 utilize after assembling Smooth circular arc mating surface 9 makes flexibly relatively rotate between the two, and labyrinth type card slot between the two constitutes sealing The good store oil space 10 of property, behind the designated position that sealing structure is put on axis 6, the lubricating oil in store oil space 10 can lead to It crosses fuel-displaced seam 11 to overflow, and bearing 3 is lubricated by rectangular aperture, reduce the friction inside bearing 3, extend bearing 3 Service life, and No.1 limit 7, No. two limiting cards of circlip are separately installed in the outer end of the inner end of bearing 3 and exterior seal ring 5 Spring 8, plays the role of limit, and the component on axis 6 is prevented to be subjected to displacement, and occurs altering axis phenomenon, more practical.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (8)

1. a kind of micro- resistance high-efficiency sealing idler roller, including cylinder skin (1) and bearing block (2), it is characterised in that: the bearing block (2) It is fixedly mounted on the inside of a skin (1), the inside of the bearing block (2) is equipped with bearing (3), and the one of bearing (3) inner ring Side is provided with inner seal ring (4), and the inner seal ring (4) includes A bulge loop (41) and B bulge loop (42), on the inner seal ring (4) It is fitted with exterior seal ring (5) and the two relatively rotates, the exterior seal ring (5) includes A groove (51), B groove (52) and C convex Ring (53), the bosom position of the cylinder skin (1) and sequentially pass through bearing (3), exterior seal ring (5) is provided with axis (6), described The inner end of bearing (3) is fixedly installed with No.1 limit circlip (7), and the outer end of the exterior seal ring (5) is equipped with No. two limiting cards Spring (8)；

The contact surface that the inner seal ring (4) and exterior seal ring (5) are rotatably assorted is provided with circular arc mating surface (9), described interior close Inside after seal (4) and exterior seal ring (5) assembling forms store oil space (10), the outside and position of the store oil space (10) Contact gap between inner seal ring (4) and exterior seal ring (5) is provided with fuel-displaced seam (11).

2. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1, it is characterised in that: the bearing (3) is using deep Ditch ball bearing symmetrically offers two groups of rectangular aperture fuel feeding outflows on the C bulge loop (53) of the exterior seal ring (5) to the bearing (3) it is lubricated.

3. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1, it is characterised in that: the inner seal ring (4) is also Including C groove, C groove is located at the medial surface of B bulge loop (42), and the A groove (51) is located at the outermost of exterior seal ring (5), institute The middle position that C bulge loop (53) is located at exterior seal ring (5) is stated, the B groove (52) is in A groove (51) and C bulge loop (53) Between.

4. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1 or 3, it is characterised in that: the A bulge loop (41) and A groove (51) is adapted, and the B bulge loop (42) and B groove (52) are adapted, and the C bulge loop (53) and C groove are adapted.

5. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1, it is characterised in that: the exterior seal ring (5) Design has chamfering on the inside of inner termination, and bearing block (2) collar extension is broadening formation.

6. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1, it is characterised in that: the exterior seal ring (5) Outer end and the inner end of bearing (3) offer the mounting groove for acting on circlip, are stored with lubricating oil in the store oil space (10) Rouge.

7. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1, it is characterised in that: the exterior seal ring (5) with Axis (6), inner seal ring (4) and bearing block (2) are all made of interference fit, the exterior seal ring (5) and inner seal ring (4), outer close Cooperation precision between seal (5) and axis (6), inner seal ring (4) and bearing block (2) is ± 0.1mm.

8. a kind of micro- resistance high-efficiency sealing idler roller according to claim 1, it is characterised in that: the diameter of the axis (6) can To be divided into φ 20, φ 25, φ 30, φ 35, φ 40, φ 45,50 series of φ.