CN103697038A

CN103697038A - Thrust bolt

Info

Publication number: CN103697038A
Application number: CN201310518657.2A
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 bolt. The thrust bolt comprises a bolt body, a seat ring and a plurality of rolling bodies, wherein the bolt body has a head and a rod body, the head has a first face and a second face which are contrary to each other, and the rod body integrally extends from the first face of the head; the seat ring is sleeved on the rod body of the bolt body, an annular orbit is commonly defined by the seat ring and the circumferential edge of the first face of the head of the bolt body; the rolling bodies are arranged in the annular orbit in a rolling manner. The thrust bolt can offer a locking function, has the characteristics of thrust bearings and can bear an axial load.

Description

Thrust bolt

Technical field

The present invention is about a kind of bolt for axial limiting, espespecially a kind of thrust bolt 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 be subject to force direction to be parallel to the center line of axle.

As shown in Figure 4, existing thrust bearing 91 often needs to arrange in pairs or groups and one stops bolt 92, to provide axial limiting to a running shaft 94.Wherein, this thrust bearing 91 is located in a cartridge housing 93; And this stops that bolt 92 interlockings are to the end of this running shaft 94.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 this cartridge housing 93, and another seat ring 96 is subject to this to stop the head contact of bolt 92.In addition, be inserted with an axle collar 99 in the center hole 98 of this thrust bearing 91, it is blocked in this thrust bearing 91 and this stops between bolt 92, to avoid this thrust bearing 91 directly to cause wearing and tearing with stopping bolt 92 to contact.

As mentioned above, much mechanical structure is got up by many spare part storehouses 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 bolt 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 bolt, it comprises a bolt body, a seat ring and several rolling element.This bolt body has a head and a shaft, this head have back to a first surface and one second.Place near the steps shaft one is extended the first surface from this head.This seat ring is sheathed on the shaft of this bolt body, and jointly defines a ring track between the periphery of the first surface of the head of this seat ring and this bolt body.Those rolling elements are rollably located at this ring track.Whereby, thrust bolt of the present invention not instrument can provide locking function, and has the feature of thrust bearing concurrently, and can bear axial load.

Further, thrust bolt of the present invention also comprises a retainer, wherein this retainer is annular and the shaft of sheathed this bolt body and between the head and this seat ring of this bolt body, is used for isolating those rolling elements, makes those rolling elements roll separately and not contact in this ring track.

In addition, further feature of the present invention comprises: those rolling elements can be ball.The two opposite sides of the head of this seat ring and this bolt body are respectively equipped with a circular groove, jointly to form this ring track.The shaft of this bolt body comprises large footpath section and a path section, and the large footpath section of this shaft is in abutting connection with this head, and this path section is extended from this large footpath section and had screw thread, and this seat ring is sheathed on the large footpath section of this shaft.The second face of the head of this bolt body has an embedding part, for a hand tools contraposition and chimeric, to screw or to unscrew operation.The embedding part of the head of this bolt body is an interior hex slot, and this head stretches to the large footpath section of this bar portion certainly.

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 schematic perspective view of thrust bolt of the present invention.

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

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

Fig. 4 shows existing axial limit structure.

Number in the figure explanation:

100 thrust bolts

1 bolt body

2 seat rings

20 circular grooves

3 rolling elements

4 retainers

10 heads

101 first surfaces

102 second

103 circular grooves

11 shafts

111 large footpath sections

112 path sections

12 ring tracks

13 embedding parts

91 thrust bearings

92 stop bolt

94 running shafts

93 cartridge housings

95,96 seat rings

97 balls

98 center holes

99 axle collars

Embodiment

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

Particularly, this bolt body 1 has a head 10 and a shaft 11.This head 10 have back to a first surface 101 and one second 102.These shaft 11 one are extended the first surface 101 from this head 10, and comprise a large footpath section 111 and a path section 112.The large footpath section 111 of this shaft 11 is not had a screw thread in abutting connection with this head 10 and smooth surface, and this seat ring 2 is sheathed on the large footpath section 111 of this shaft 11; And this path section 112 is extended from this large footpath section 111 and has screw thread.

As shown in the sectional view of Fig. 3, this seat ring 2 is sheathed on the shaft 11 of this bolt body 1, and jointly defines a ring track 12 between the periphery of the first surface 101 of the head 10 of this seat ring 2 and this bolt body 1.Those rolling elements 3 are located at this ring track 12 in rotatable mode.In this example, those rolling elements 3 are spherical balls, but not as limit, can also be columniform rollers.

As shown in Figure 2, this seat ring 2 is respectively equipped with a

circular groove

103,20 with the two opposite sides of the head 10 of this bolt body 1, jointly to form this ring track 12 (Fig. 3).On the other hand, this retainer 4 is also the large footpath section 111 of annular and the shaft 11 of sheathed this bolt body 1 and between the head 10 and this seat ring 4 of this bolt body 1, be used for isolating those rolling elements 3, make those rolling elements 3 roll separately and not contact in this ring track 12.

In addition, as shown in Fig. 1 or Fig. 3, second 102 of the head 10 of this bolt body 1 defines an embedding part 13, chimeric for a hand tools (not shown) contraposition, to screw or to unscrew operation.In this example, this embedding part 13 is interior hex slot, and this head 10 stretches to the large footpath section 111 of this bar portion 11 certainly, chimeric for an Allen wrench (not shown), but not as limit.In other example, this embedding part 13 also can be 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.

As mentioned above, thrust bolt 100 of the present invention is integrated with the part characteristic of general bolt 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 bolt, is characterized in that, comprising:

One bolt body, has a head and a shaft, this head have back to a first surface and one second; This shaft one is extended the first surface from this head;

One seat ring, is sheathed on the shaft of this bolt body, and between the periphery of the first surface of the head of this seat ring and this bolt body, jointly defines a ring track; And

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

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

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

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

5. thrust bolt according to claim 1, it is characterized in that, the shaft of described bolt body comprises large footpath section and a path section, and the large footpath section of this shaft is in abutting connection with this head, this path section is extended from this large footpath section and is had screw thread, and this seat ring is sheathed on the large footpath section of this shaft.

6. thrust bolt according to claim 5, is characterized in that, the second face of the head of described bolt body has an embedding part, for a hand tools contraposition and chimeric, to screw or to unscrew operation.

7. thrust bolt according to claim 6, is characterized in that, the embedding part of the head of described bolt body is an interior hex slot, and this head stretches to the large footpath section of this bar portion certainly.