CN203906548U - Dustproof bearing - Google Patents

Abstract

The utility model discloses a dustproof bearing which comprises an inner ring, an outer ring, steel balls, an upper retainer, a lower retainer, two dustproof covers and clamping springs, wherein the inner ring and the outer ring are coaxially arranged; the upper retainer and the lower retainer are positioned between the inner ring and the outer ring and comprise arc slots and connection ends; due to mutual welding of the connection ends of the upper retainer and the lower retainer, the arc slots of the upper retainer and the lower retainer form a region for accommodating a steel column; the two dustproof covers are positioned on the upper side and lower side of the outer ring respectively; the outer ends of the dustproof covers are connected with the outer ring by virtue of the clamping springs, and the inner ends of the dustproof covers comprise annular closed rings; the closed rings are positioned on the axial surface of the inner ring. The bearing disclosed by the utility model has a good dust-proofing effect, and the lubricating performance is improved.

Description

A kind of bearing that can be dustproof

Technical field

The utility model belongs to bearing apparatus field, is specifically related to a kind of bearing that can be dustproof.

Background technique

Existing bearing includes inner ring and dust cover, between described inner ring and dust cover, has gap, easily in this gap, enters, so can affect lubrication effect therefore dust allows very much.

Model utility content

(1) technical problem that will solve

The technical problems to be solved in the utility model is to solve the dust-proof effect that improves bearing.

(2) technological scheme

For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of bearing that can be dustproof, comprises inner ring, outer ring, steel ball, holder, lower retainer, dust cover and jump ring; Coaxially put described inner ring and outer ring, described holder and lower retainer are all between inner ring and outer ring, and all include arc groove and connecting end, being welded to each other of connecting end by both makes the arc groove of holder and lower retainer form a region of placing steel column, described dustproof 2 both sides up and down that lay respectively at outer ring of being stamped, the outer end of described dust cover is connected by jump ring with outer ring, and the inner includes annular closed loop, and described closed loop is positioned at the axial vane surface place of inner ring.

The connecting end of described holder is a U-shaped sheet, and the connecting end of described lower retainer is a flat board, and described flat board is plugged in U-shaped sheet and welds with U-shaped sheet.

The outer end of described outer ring includes arc angle.

The inner of described inner ring is provided with screw thread.

The material of described inner ring is metal.

(3) beneficial effect

Bearing that can be dustproof of the present utility model, by a closed loop is set at dust cover, makes closed loop be positioned at the axial vane surface place of inner ring, thereby can cover the gap between inner ring and dust cover, therefore can prevent dust contact steel ball, affect greasy property, thereby improved dust-proof effect.

Accompanying drawing explanation

Fig. 1 is the structural representation of bearing that can be dustproof of the present utility model;

Fig. 2 is the sectional view of A-A in Fig. 1;

Fig. 3 is the enlarged view of B in Fig. 2;

In figure, 1 is that inner ring, 2 is that outer ring, 3 is that steel ball, 4 is that holder, 5 is that lower retainer, 6 is that dust cover, 7 is that jump ring, 8 is that arc groove, 9 is that connecting end, 10 is closed loop.

Embodiment

Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but are not used for limiting scope of the present utility model.

A kind of bearing that can be dustproof as shown in figures 1 and 3, comprises inner ring 1, outer ring 2, steel ball 3, holder 4, lower retainer 5, dust cover 6 and jump ring 7; Described inner ring 1 is coaxially put with outer ring 2, described holder 4 and lower retainer 5 are all between inner ring 1 and outer ring 2, and all include arc groove 8 and connecting end 9, being welded to each other of connecting end 9 by both makes holder 4 and the arc groove 8 of lower retainer 5 form a region of placing steel column 3, steel ball 3 can be rolled, steel ball 3 contacts with outer ring 2 with inner ring 1 respectively, thereby can drive inner ring 1 and outer ring 2 rotations.Described dust cover 6 has 2 both sides up and down that lay respectively at outer ring 2, the outer end of described dust cover 6 is connected by jump ring 7 with outer ring 2, the inner includes annular closed loop 10, described closed loop 10 is positioned at the axial vane surface place of inner ring 1, thereby can cover the gap between inner ring 1 and dust cover 6, therefore can prevent dust contact steel ball, affect greasy property, thereby improved dust-proof effect.

The connecting end 9 of described holder 4 is a U-shaped sheet, the connecting end 9 of described lower retainer 5 is a flat board, described flat board is plugged in U-shaped sheet and welds with U-shaped sheet, whole firm shape after this structure can strengthen retainer 4 and is connected with lower retainer 5, prevents that retainer 4 and lower retainer 5 are stressed and is out of shape.

The outer end of described outer ring 2 includes arc angle.

The inner of described inner ring 1 is provided with screw thread.

The material of described inner ring 1 is metal.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (5)

1. a bearing that can be dustproof, is characterized in that: describedly can comprise inner ring (1), outer ring (2), steel ball (3), holder (4), lower retainer (5), dust cover (6) and jump ring (7) by dustproof bearing, described inner ring (1) is coaxially put with outer ring (2), described holder (4) and lower retainer (5) are all positioned between inner ring (1) and outer ring (2), and all include arc groove (8) and connecting end (9), being welded to each other of connecting end (9) by both makes holder (4) and the arc groove (8) of lower retainer (5) form a region of placing steel column (3), described dust cover (6) has 2 both sides up and down that lay respectively at outer ring (2), the outer end of described dust cover (6) is connected by jump ring (7) with outer ring (2), the inner includes annular closed loop (10), described closed loop (10) is positioned at the axial vane surface place of inner ring (1).

2. bearing that can be dustproof according to claim 1, it is characterized in that: the connecting end (9) of described holder (4) is a U-shaped sheet, the connecting end (9) of described lower retainer (5) is a flat board, and described flat board is plugged in U-shaped sheet and welds with U-shaped sheet.

3. bearing that can be dustproof according to claim 1, is characterized in that: the outer end of described outer ring (2) includes arc angle.

4. bearing that can be dustproof according to claim 1, is characterized in that: the inner of described inner ring (1) is provided with screw thread.

5. bearing that can be dustproof according to claim 1, is characterized in that: the material of described inner ring (1) is metal.