CN203308936U

CN203308936U - Thrust bearing

Info

Publication number: CN203308936U
Application number: CN2013202561270U
Authority: CN
Inventors: 胡旭辉
Original assignee: NINGBO SUNTHAI BEARING CO Ltd
Current assignee: NINGBO SUNTHAI BEARING CO Ltd
Priority date: 2013-05-10
Filing date: 2013-05-10
Publication date: 2013-11-27
Anticipated expiration: 2023-05-10

Abstract

The utility model disclosed a thrust bearing which comprises shaft washers (1), seat retainers (2) and rolling bodies (3), wherein the rolling bodies (3) are arranged between the shaft washers (1) and the seat retainers (2) in a rolling manner; housings (4) wrap the peripheral surfaces of the shaft washers (1) and the seat retainers (2); shaft pins (5) with arc surfaces are arranged on the upper surfaces of the seat retainers (2) at intervals and are distributed in the radial direction; at least two positioning devices (6) are arranged at the bottoms of the shaft washers (1); telescopic arc plugs are respectively arranged in the positioning devices (6); under a condition of no outer force, the arc plugs in the positioning devices (6) respectively extend to support the arc side surfaces of the corresponding shaft pins (5). The thrust bearing has the advantages that the positioning devices consisting of balls and springs are arranged in the bearing; middle balls in the positioning devices are stopped as soon as touching the arc surfaces of the shaft pins, so that a high interval positioning function is realized; the thrust bearing is very suitable for being used in rotating devices such as doors and windows.

Description

Thrust-bearing

Technical field

The utility model relates to a kind of bearing manufacture technology field, especially refers to a kind of thrust-bearing with positioning action.

Background technique

Bearing is the important foundation component of all kinds of mechanized equipments.The equipment such as modern machines, instrument forward at a high speed, the aspect such as heavily loaded, accurate, light and handy develops, this proposes many new requirements to bearing, if kept even improving rated load, the improvement technique of employing new technology subtracting the undersized bearing that requires simultaneously, improve accuracy of manufacturing, reduce costs.Existing a kind of patent No. is that the Chinese utility model patent that the CN200820217658.8 name is called " but axially locating bearing " discloses a kind of structure, its structure includes the retainer between outer ring, inner ring and rolling element and inside and outside circle, it is characterized in that: described outer ring is stepped, has flange.The characteristics of this bearing are that the flange increased is the outer ring integral piece, relatively simple for structure, and the flange root is provided with curve bath, can reduce the stress concentration of flange root, extend the working life of whole bearing.Yet the location of this bearing means arranges unreasonable, its locating effect is unstable, so the structure of this device also needs further improvement.

Summary of the invention

Technical problem to be solved in the utility model is the thrust-bearing that the ingenious and good positioning effect of a kind of structure is provided for above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technological scheme adopted: this thrust-bearing, include blowout patche, seat ring, rolling element, described rolling physical efficiency rollably is arranged between blowout patche and seat ring, on the outer circumferential face that is positioned at blowout patche and seat ring, be enclosed with case, described case top has annular opening, between the inwall of described blowout patche outer circumferential face and case, arrange and leave gap, it is characterized in that: the upper surface compartment of terrain of described seat ring is provided with the pivot pin of arc surface, described pivot pin is respectively with radially direct, at least be provided with two positioning devices being positioned on the bottom surface of blowout patche, in described positioning device, be respectively arranged with retractable circular arc plug, without under External Force Acting, circular arc plug in described positioning device stretch out respectively and with corresponding pivot pin circular arc lateral support together.

As improvement, described pivot pin is distributed on an axle circumferential surface with being preferably decile.

Improve again, described positioning device comprises ball, spring, and described spring is placed in the groove of blowout patche, and an end of described spring supports mutually with the bottom surface of groove, and the other end of described spring stretches out groove, described ball can rollably be limited on the spring end that stretches out groove one end.

Improve again, leave gap between the bottom surface of described blowout patche and the end face of pivot pin.

Improve, described positioning device is preferably 2 to 4 again.

Improve, be provided with retainer between described blowout patche and seat ring, described rolling physical efficiency is arranged in retainer actively.

Improve, described rolling element is preferably ball or needle roller again.

Compared with prior art, the utility model has the advantage of: in bearing, be provided with the positioning device by ball and spring assembly, middle ball in positioning device and the cambered surface of pivot pin are touched and off-position, play the effect of good positioned at intervals, are very suitable in the whirligigs such as door or window; Also have, with case, positioning bearing is firmly wrapped up wherein, prevent that effectively lubricant oil or the lubricating grease in bearing from leaking into outside bearing, improved the reliability of bearing, can also stop dust in environment to enter in bearing; And not only the design's structure is ingenious for this bearing, and easy to process, is produced into also low.

The accompanying drawing explanation

Fig. 1 is stereogram of the present utility model;

Fig. 2 is the stereogram at another visual angle of Fig. 1;

Fig. 3 is the exploded view of Fig. 1;

Fig. 4 is the exploded view of Fig. 2;

Fig. 5 is the plan view of Fig. 1;

Fig. 6 is along the sectional view of A-A line in Fig. 5;

Fig. 7 is the exploded view of Fig. 1.

Embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figures 1 to 7, the thrust-bearing of the present embodiment, include blowout patche 1, seat ring 2, rolling element 3, described rolling element 3 can rollably be arranged between blowout patche 1 and seat ring 2, on the outer circumferential face that is positioned at blowout patche 1 and seat ring 2, be enclosed with case 4, described case 4 tops have annular opening, between the inwall of described blowout patche 1 outer circumferential face and case 4, be provided with gap, on the circumferential surface of described seat ring 2 upper surfaces, the decile compartment of terrain is provided with the pivot pin 5 of arc surface, described pivot pin 5 is respectively with radially direct, on the bottom surface that is positioned at blowout patche 1, be provided with at least two positioning devices 6, in described positioning device 6, be respectively arranged with retractable circular arc plug, without under External Force Acting, circular arc plug in described positioning device 6 stretch out respectively and with corresponding pivot pin 5 circular arc lateral support together.Described positioning device 6 comprises ball 61, spring 62, described spring 62 is placed in the groove 11 of blowout patche, and an end of described spring 62 supports mutually with the bottom surface of groove 11, and the other end of described spring 62 stretches out groove 11, described ball 61 can rollably be limited on spring 62 ends of stretching out groove 11 1 ends.Described positioning device 6 can be preferably 2 to 4.Between the end face of the bottom surface of described blowout patche 1 and pivot pin 5, leave gap.Between described blowout patche 1 and seat ring 2, be provided with retainer 7, described rolling element 3 is preferably ball or needle roller, and can be arranged at actively in retainer 7.

Working principle of the present utility model: during use, thrust-bearing is contained on suitable equipment, and blowout patche 1 relatively rotates with seat ring 2, will automatically locate when ball 61 runs into the pivot pin 5 of blowout patche 1 upper surface, thereby play the positioning action at interval, be suitable for the application of the equipment such as door, window.

Claims

1. thrust-bearing, include blowout patche (1), seat ring (2), rolling element (3), described rolling element (3) can rollably be arranged between blowout patche (1) and seat ring (2), on the outer circumferential face that is positioned at blowout patche (1) and seat ring (2), be enclosed with case (4), described case (4) top has annular opening, between the inwall of described blowout patche (1) outer circumferential face and case (4), be provided with gap, it is characterized in that: the upper surface compartment of terrain of described seat ring (2) is provided with the pivot pin (5) of arc surface, described pivot pin (5) is respectively with radially direct, on the bottom surface that is positioned at blowout patche (1), be provided with at least two positioning devices (6), in described positioning device (6), be respectively arranged with retractable circular arc plug, without under External Force Acting, circular arc plug in described positioning device (6) stretch out respectively and with corresponding pivot pin (5) circular arc lateral support together.

2. thrust-bearing according to claim 1 is characterized in that: described pivot pin (5) for decile be distributed on seat ring (2) circumferential surface.

3. thrust-bearing according to claim 2, it is characterized in that: described positioning device (6) comprises ball (61), spring (62), described spring (62) is placed in the groove (11) of blowout patche (1), and an end of described spring (62) supports mutually with the bottom surface of groove (11), and the other end of described spring (62) stretches out groove (11), described ball (61) can rollably be limited on spring (62) end of stretching out groove (11) one ends.

4. according to arbitrary described thrust-bearing in claims 1 to 3, it is characterized in that: leave gap between the end face of the bottom surface of described blowout patche (1) and pivot pin (5).

5. according to arbitrary described thrust-bearing in claims 1 to 3, it is characterized in that: described positioning device (6) is 2 to 4.

6. according to arbitrary described thrust-bearing in claims 1 to 3, it is characterized in that: between described blowout patche (1) and seat ring (2), be provided with retainer (7), described rolling element (3) can be arranged in retainer (7) actively.

7. thrust-bearing according to claim 6, it is characterized in that: described rolling element (3) is ball or needle roller.