CN103697042A

CN103697042A - Thrust nut

Info

Publication number: CN103697042A
Application number: CN201310520983.7A
Authority: CN
Inventors: 林彩琪
Original assignee: TS'AI CH'I Co Ltd
Current assignee: TS'AI CH'I Co Ltd
Priority date: 2013-10-29
Filing date: 2013-10-29
Publication date: 2014-04-02

Abstract

The invention relates to a thrust nut. The thrust nut comprises a nut body, a seat ring and a plurality of rolling bodies, wherein the nut body has a first face and a second face which are contrary to each other and defines a screw hole; the seat ring faces to the first face of the nut body, and an annular orbit is commonly defined by the seat ring and the nut body; the rolling bodies are arranged in the annular orbit in a rolling manner. The thrust nut can offer a locking function, has the characteristics of thrust bearings and can bear an axial load.

Description

Thrust nut

Technical field

The present invention is about a kind of nut for axial limiting, espespecially a kind of thrust nut that has thrust bearing characteristic concurrently.

Background technique

Bearing is the role who takes on supporting rotating shaft in machinery, and according to being subject to force direction to be generally divided into radial bearing and thrust bearing.Wherein, radial bearing is to be subject to force direction perpendicular to the center line of axle; And thrust bearing refers to the center line that is subject to force direction to be parallel to axle.

As shown in Figure 5, existing pedal 9 comprises a thrust bearing 91, and it often needs to arrange in pairs or groups and one stops nut 92, with the axle 94 to pedal, provides axial limiting.Wherein, this thrust bearing 91 is sheathed in this axle 94; And this stops that nut 92 interlockings are to the end of this axle 94, with spacing to this thrust bearing 91.Mainly by two

seat rings

95,96 and Jie, one group of ball 97 between this two seat ring is formed this thrust bearing 91, in order to bear axial load.Wherein a seat ring 95 is resisted against on pedal body 93 by an elastic component 98 and a pad 99 indirectly, and another seat ring 96 is subject to this to stop nut 92 contacts.

As mentioned above, much mechanical structure is stacked up by many spare parts often, the gross weight that it produces, or gross tolerance (or claiming cumulative limit), the often key of quality-determining quality.So how simplified structure is to reach lightweight, reduce cumulative limit, be still and be worth the problem that continues to progress greatly.

Summary of the invention

Technical problem underlying to be solved by this invention is, overcomes the above-mentioned defect that prior art exists, and a kind of thrust nut is provided, and it is for axial limiting, and it integrates two above parts, has the feature of lightweight and lower part cumulative limit.

The technical solution adopted for the present invention to solve the technical problems is:

A thrust nut, it comprises a nut body, a seat ring and several rolling element.This nut body have back to first surface and one second, and define a screw.This seat ring is faced the first surface of this nut body, and jointly defines a ring track with this nut body.Those rolling elements, are rollably located at this ring track.Whereby, thrust nut of the present invention can not only provide locking function, and has the feature of thrust bearing concurrently, and can bear axial load.

Further, thrust nut of the present invention also comprises a retainer, wherein this retainer be annular and between this nut body and this seat ring, be used for isolating those rolling elements, make those rolling elements roll separately and not contact in this ring track.

Further feature of the present invention comprises: those rolling elements can be balls.The two opposite sides of this seat ring and this nut body are respectively equipped with a circular groove, jointly to form this ring track.This nut body is formed with an embedding part in its second face, for a hand tools contraposition and chimeric, to screw or to unscrew operation.

In addition, this nut body also can more extend to form a bar portion in its first surface, and the screw of this nut body runs through this bar portion, and this seat ring is sheathed on this bar portion.

The invention has the beneficial effects as follows, it is for axial limiting, and it integrates two above parts, has the feature of lightweight and lower part cumulative limit.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the first embodiment's of thrust nut of the present invention schematic perspective view.

Fig. 2 is the decomposing schematic representation of the thrust nut of Fig. 1.

Fig. 3 is the sectional drawing along the III-III line of Fig. 1.

Fig. 4 is the second embodiment's of thrust nut of the present invention sectional drawing.

Fig. 5 is the axial limit structure that shows existing pedal.

Number in the figure explanation:

100,200 thrust nuts

1,1a nut body

101 first surfaces

102 second

103 circular grooves

10,10a screw

12 ring tracks

13 embedding parts

130 short slots

2 seat rings

20 circular grooves

3 rolling elements

4 retainers

9 pedals

91 thrust bearings

92 stop nut

93 pedal bodies

94 axles

95,96 seat rings

97 balls

98 elastic components

99 pads

Embodiment

Consult Fig. 1 to Fig. 3, it is the schematic diagram of the first preferred embodiment of thrust nut 100 of the present invention.As shown in Figure 2, this thrust nut 100 mainly comprises a nut body 1, a seat ring 2, several rolling element 3 and a retainer 4.

Particularly, this nut body 1 have back to first surface 101 and one second 102, and its central authorities define a screw 10.This seat ring 2 is faced the first surface 101 of this nut body 1, and jointly defines a ring track 12 with this nut body 1, as shown in Figure 3.Those rolling elements 3 are rollably located at this ring track 12.In this example, those rolling elements 3 are balls, but not as limit, can also be columniform rollers.

Consult again Fig. 2, this seat ring 2 is respectively equipped with a

circular groove

103,20 with the two opposite sides of this nut body 1, jointly to form this ring track 12.On the other hand, this retainer 4 be also annular and between this nut body 1 and this seat ring 2, be used for isolating those rolling elements 3, make those rolling elements 3 roll separately and not contact in this ring track 12.

As shown in Fig. 1 or Fig. 3, this nut body 1 is formed with an embedding part 13 in its second 102, chimeric for a hand tools (not shown) contraposition, to screw or to unscrew operation.In this example, this embedding part 13 comprises a pair of a pair of short slot 130 that is defined in these nut body 1 both sides, chimeric for a fork-shaped wrench, but is not limited to this.In other example, this embedding part 13 can be an interior hex slot, chimeric for an Allen wrench; One cross groove, chimeric for cross driver contraposition; One word groove, chimeric for a word bottle opener contraposition; Or an outer-hexagonal shape spiral shell head, chimeric for the contraposition of outer-hexagonal wrench.

Consult Fig. 4, it is the schematic diagram of the second preferred embodiment of thrust nut 200 of the present invention.Be similar to above-mentioned the first preferred embodiment, the thrust nut 200 of this second preferred embodiment comprises a seat ring 2, several rolling element 3 and a retainer 4 equally, precisely because nut body 1a has more extended to form a bar portion 11 in its first surface 101.Wherein, the screw 10a of this nut body 1a is through to this bar portion 11, and this seat ring 2 is sheathed on this bar portion 11.

As mentioned above, thrust nut of the present invention is integrated with the part characteristic of general nut and thrust bearing, and has advantages of lightweight and lower part cumulative limit.

The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.

Claims

1. a thrust nut, is characterized in that, comprising:

One nut body, have back to first surface and one second, and define a screw;

One seat ring, in the face of the first surface of this nut body, and defines a ring track jointly with this nut body; And

Several rolling elements, are rollably located at this ring track.

2. thrust nut according to claim 1, is characterized in that, described several rolling elements are ball.

3. thrust nut according to claim 2, is characterized in that, the two opposite sides of described seat ring and this nut body are respectively equipped with a circular groove, jointly to form this ring track.

4. thrust nut according to claim 1, it is characterized in that, also comprise a retainer, wherein this retainer be annular and between this nut body and this seat ring, be used for isolating those rolling elements, make those rolling elements roll separately and not contact in this ring track.

5. thrust nut according to claim 1, is characterized in that, described nut body is formed with an embedding part in its second face, for a hand tools contraposition and chimeric, to screw or to unscrew operation.

6. thrust nut according to claim 1, is characterized in that, described nut body has more extended to form a bar portion in its first surface, and the screw of this nut body runs through this bar portion, and this seat ring is sheathed on this bar portion.