CN202732709U

CN202732709U - Plane thrust bearing

Info

Publication number: CN202732709U
Application number: CN 201220404235
Authority: CN
Inventors: 胡旭辉
Original assignee: NINGBO SUNTHAI BEARING CO Ltd
Current assignee: NINGBO SUNTHAI BEARING CO Ltd
Priority date: 2012-08-15
Filing date: 2012-08-15
Publication date: 2013-02-13
Anticipated expiration: 2022-08-15

Abstract

The utility model relates to a plane thrust bearing, which comprises a shaft washer (1), a seat ring (2), rolling bodies (3) and a retainer (4). The rolling bodies (3) are positioned on the retainer (4), and are movably disposed between the shaft washer (1) and the seat ring (2). The invention is characterized in that: the outer edge of the seat ring (2) is perpendicular to a seat ring (2) plane and extends upward to form an outer retaining ring (21), the inner edge of the seat ring (2) is perpendicular to the seat ring (2) plane and extends upward to form an inner retaining ring (22), and the retainer (4) is rotatably disposed between the outer retaining ring (21) and the inner retaining ring (22). Compared with the prior art, the bearing has the advantages that the retaining rings can prevent lubricating oil or lubricating grease in the bearing from leaking out of the bearing, and also can prevent impurities in the environment from entering the bearing, thereby ensuring the lubricating environment of the bearing and improving the bearing life. Moreover, as the retaining rings and the seat ring are in a whole, the plane thrust bearing has the characteristics of simple structure and convenient processing.

Description

Plain thrust bearing

Technical field

The utility model relates to a kind of bearing manufacture technology field, especially refers to the plain thrust bearing for the vertical rotating system.

Background technique

Plain thrust bearing is a kind of rolling bearing that bears axial load, and basic part is blowout patche, seat ring and with or without the rolling element of retainer.Existing a kind of patent No. is 201120430944.4 and is called that the Chinese utility model patent of " with the thrust-bearing of integrated sealing structure " discloses a kind of thrust-bearing with sealing configuration, this thrust-bearing, comprise blowout patche, seat ring, rolling element and guard shield, the top and bottom of described guard shield is coated with respectively top seal rubber and sealed bottom rubber, and described top seal rubber and sealed bottom rubber and guard shield form integral structure.Described top seal rubber is faced down by the top end of guard shield and is sprayed into blowout patche top end face and forms the first caulking gum, and sealed bottom rubber is arranged on and forms the second caulking gum between guard shield bottom and the seat ring.But the shortcoming of this model utility is complex structure, processing inconvenience, and sealing effect is not good, so its structure awaits to improve.

The model utility content

Technical problem to be solved in the utility model is to provide a kind of structure ingenious, easy to process and can prevent the plain thrust bearing that lubricant grease leaks outside in the bearing for above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technological scheme that adopts: this plain thrust bearing, include blowout patche, seat ring, rolling element and retainer, described rolling element places on the retainer, and mobilizable placing between blowout patche and the seat ring, it is characterized in that: the outer of described seat ring extends upward perpendicular to the seat ring plane and forms outer back-up ring, the interior edge of described seat ring extends upward the formation inner shield ring perpendicular to the seat ring plane, and described retainer places between outer back-up ring and the inner shield ring rotationally.

As improvement, described outer back-up ring and inner shield ring and seat ring can be preferably the disposable overall structure that is made.

As improvement, described rolling element can be preferably ball, is evenly distributed with several manholes on the described retainer, and described ball can be arranged in the manhole actively.

As improvement, the top annular groove that is provided with of described retainer, described manhole is for to be distributed on the bottom land of annular groove equably.

As improvement, described annular groove can upwards be turned up respectively and the integrative-structure that forms by the interior edge of retainer and outer.

Improve, the quantity of described manhole can be 6～30 again, and the quantity of described rolling element is corresponding with manhole; Certainly, the quantity of manhole can be still less or is more, specifically can decide by design.

As improvement, described rolling element may be selected to be needle roller, is evenly distributed with the suitable needle roller hole of several and needle roller on the described retainer, and described needle roller rollably places the needle roller hole.

Improve, the quantity in described needle roller hole is preferably 6～30 again, and the quantity of described needle roller is corresponding with the needle roller hole; Certainly, the quantity in needle roller hole can be still less or is more, specifically can decide by design.

Compared with prior art, the utility model adopts the outer of seat ring to extend upward perpendicular to the seat ring plane and forms outer back-up ring, and the interior edge of described seat ring extends upward the formation inner shield ring perpendicular to the seat ring plane, and described outer back-up ring, inner shield ring and seat ring form an integral body.Rolling element and retainer rollably are embedded between outer back-up ring and the inner shield ring.The advantage of this structure is, described back-up ring can prevent effectively that lubricant oil or the lubricating grease in the bearing from leaking into outside the bearing, thereby improve flexibility and the reliability of bearing, and inside and outside back-up ring can prevent that impurity enters in the bearing in the environment, thereby further improve the stability that bearing uses, prolong significantly the working life of bearing, have again, because described back-up ring and seat ring are overall structure, so this plain thrust bearing, easy to process, structure is also simple, and fabricating cost is low, applied range, can be used for go-cart, automobile, on the vertical the steering gear such as tractor, it is a kind of very practical product.

Description of drawings

Fig. 1 is the utility model embodiment's structural perspective;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is along the sectional view of B-B line among Fig. 2;

Fig. 4 is the three-dimensional exploded view behind the also rotation angle of Fig. 1 after removing rotating shaft;

Fig. 5 is the three-dimensional exploded view of Fig. 1;

Fig. 6 is the stereogram the during combination of retainer and rolling element among Fig. 1;

Fig. 7 is the another kind of embodiment's that analyses and observe along the B-B line among Fig. 2 sectional view;

Fig. 8 is the three-dimensional exploded view of Fig. 7.

Embodiment

Below in conjunction with embodiment the utility model is described in further detail.

Embodiment one, and Fig. 1 is to shown in Figure 6, and the plain thrust bearing of the present embodiment includes blowout patche 1, seat ring 2, rolling element 3 and retainer 4, and the rolling element of this enforcement is ball.The center of described blowout patche 1, seat ring 2 is provided with the diameter bearing hole identical with rotating shaft 5 diameters, and the center of circle of described blowout patche 1, seat ring 2 and retainer 4 is positioned on the same axis.The outer of described seat ring 2 extends upward perpendicular to the seat ring plane and forms outer back-up ring 21, and the interior edge of seat ring 2 extends upward perpendicular to the seat ring plane and forms inner shield ring 22, and described outer back-up ring 21 and inner shield ring 22 form an integral body with seat ring 2.Described ball rollably places on the retainer 4, and can place rotationally together with retainer 4 in the groove 20 on the upper surface of the lower surface of blowout patche 1 and seat ring 2.Described retainer 4 is cirque structure, its outer diameter is less than the inner diameter of described outer back-up ring 21, its inner diameter is greater than the outer diameter of inner shield ring 22, be evenly distributed with on the retainer 4 for several manholes 41 of placing ball, described ball places on the manhole 41 on the corresponding retainer 4, and and retainer 4 together can place rotationally between blowout patche 1 and the seat ring 2.The diameter of described groove 20 and the diameter of ball are suitable, and the groove 20 on blowout patche 1 and the seat ring 2 is for being symmetrical arranged.During bearing working, ball can rollably be supported on groove 20.

As shown in Figure 3, described manhole 41 is for being uniformly distributed on the retainer 4, the diameter of manhole 41 is less than the diameter of ball (be about ball diameter 2/3rds), the interior edge of the retainer 4 of ring and outer are upwards turned up and are formed annular groove 42, and ball places in the described annular groove 42 movably.

Embodiment two, see that Fig. 7 is to shown in Figure 8, plain thrust bearing for another kind of embodiment of the present utility model, basic structure is similar to above-mentioned bearing, its difference is that described rolling element 3 adopts needle roller, be evenly distributed with the suitable needle roller hole 44 of several and needle roller on the described retainer 4, needle roller rollably places needle roller hole 44, and places movably between outer back-up ring 21 and the inner shield ring 22 with retainer 44.

During assembling, seat ring 2 has on the side direction of outer back-up ring 21 and inner shield ring 22 lower, rolling element 3 is rollably placed on the retainer 4, and place movably between outer back-up ring 21 and the inner shield ring 22 with retainer 4, blowout patche 1 is placed on the retainer 4 again.After bearing pack installs into, just can with this plain thrust bearing as an integral installation on vertical rotary device, such as steering system of haulage equipment, automobile etc.

Claims

1. plain thrust bearing, include blowout patche (1), seat ring (2), rolling element (3) and retainer (4), described rolling element (3) places on the retainer (4), and mobilizable placing between blowout patche (1) and the seat ring (2), it is characterized in that: the outer of described seat ring (2) extends upward perpendicular to seat ring (2) plane and forms outer back-up ring (21), the interior edge of described seat ring (2) extends upward perpendicular to seat ring (2) plane and forms inner shield ring (22), and described retainer (4) places between outer back-up ring (21) and the inner shield ring (22) rotationally.

2. plain thrust bearing according to claim 1 is characterized in that: described outer back-up ring (21) is the disposable overall structure that is made with inner shield ring (22) and seat ring (2).

3. plain thrust bearing according to claim 1, it is characterized in that: described rolling element is ball, be evenly distributed with several manholes (41) on the described retainer (4), described ball can be arranged in the manhole (41) actively.

4. plain thrust bearing according to claim 3, it is characterized in that: be provided with annular groove (42) above the described retainer (4), described manhole (41) is for to be distributed on the bottom land of annular groove (42) equably.

5. plain thrust bearing according to claim 4 is characterized in that: described annular groove (42) is upwards to be turned up respectively and the integrative-structure that forms by the interior edge of retainer (4) and outer.

6. according to claim 3 or 4 or 5 described plain thrust bearings, it is characterized in that: the quantity of described manhole (41) is 6～30, and the quantity of described rolling element (3) is corresponding with manhole (41).

7. plain thrust bearing according to claim 1, it is characterized in that: described rolling element is needle roller, be evenly distributed with the suitable needle roller hole (44) of several and needle roller on the described retainer (4), described needle roller rollably places needle roller hole (44).

8. plain thrust bearing according to claim 7, it is characterized in that: the quantity in described needle roller hole (44) is 6～30, the quantity of described needle roller is corresponding with needle roller hole (44).