CN211550246U

CN211550246U - Novel retaining washer

Info

Publication number: CN211550246U
Application number: CN201922178400.2U
Authority: CN
Inventors: 阮立伟
Original assignee: Ruian Hongsheng Standard Parts Co ltd
Current assignee: Ruian Hongsheng Standard Parts Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-09-22
Anticipated expiration: 2029-12-06

Abstract

The utility model belongs to the technical field of the fastener technique and specifically relates to a novel stopping packing ring. The utility model provides a following technical scheme: the utility model provides a novel stopping packing ring, includes the packing ring body, the packing ring body is plane ring structure, the locking ear in being equipped with on the interior circumference of packing ring body, be equipped with outer locking ear on the outer periphery of packing ring body, interior locking ear is buckled and is set up and outwards extend along the axial, the radial both ends of outer locking ear are equipped with respectively and are supported the touch multitouch, support the touch multitouch slope and set up on outer locking ear, support the touch multitouch orientation and set up another direction slope that supports the touch multitouch on same outer locking ear. The utility model discloses can effectively eliminate the fit clearance that exists between the fluting of outer locking ear and round nut, prevent that round nut pine from taking off.

Description

Novel retaining washer

Technical Field

The utility model belongs to the technical field of the fastener technique and specifically relates to a novel stopping packing ring.

Background

The retaining washer is a washer which prevents the round nut from loosening by utilizing the matching of a stop lug, an opening of the round nut and a key groove of a shaft. Existing backstop washers include an inner stop tab and an outer stop tab. When the retaining washer and the round nut are used in a matched mode, the retaining washer is arranged on one side of the groove of the nut, and the inner stopping lug is arranged in the key groove of the shaft. After the round nut is fastened, the outer stop lug is pulled to be axially clamped in the groove of the round nut, so that the round nut cannot be loosened due to rotation of the shaft.

Wherein, the outer locking ear of stopping packing ring need be pulled into the axial to in the fluting of card income round nut, consequently outer locking ear need be processed into the size with the fluting size looks adaptation of round nut, nevertheless because dimensional tolerance's existence, still there is certain fit clearance between the fluting of outer locking ear and round nut, round nut can be at fit clearance internal rotation, can cause wearing and tearing to internal and external screw thread after long-time the use, make the radial of internal and external screw thread, the side clearance grow, and consequently arouse the relative movement of axial trace and the relative rotation of circumference trace, and then lead to round nut to appear becoming flexible.

Disclosure of Invention

To the problem that exists among the prior art, the utility model provides a novel stopping packing ring can effectively eliminate the fit clearance that exists between the fluting of outer locking ear and round nut, prevents that round nut pine from taking off.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a novel stopping packing ring, includes the packing ring body, the packing ring body is plane ring structure, the locking ear in being equipped with on the interior circumference of packing ring body, be equipped with outer locking ear on the outer periphery of packing ring body, interior locking ear is buckled and is set up and outwards extend along the axial, the radial both ends of outer locking ear are equipped with respectively and are supported the touch multitouch, support the touch multitouch slope and set up on outer locking ear, support the touch multitouch orientation and set up another direction slope that supports the touch multitouch on same outer locking ear.

By adopting the technical scheme, the inner stop lug is arranged in the key groove of the shaft and connected with the shaft, the outer stop lug is pulled into a shape of being axially clamped in the groove of the round nut after the round nut is fastened and connected with the round nut, and the round nut is connected with the shaft through the inner stop lug and the outer stop lug, so that the round nut cannot be loosened due to the rotation of the shaft; the two contact blocks on the same outer locking lug are arranged in a relatively inclined mode, after the outer locking lug is pulled to be in the axial direction and clamped into the groove of the round nut, the inclined angles of the two contact blocks on the outer locking lug can be adjusted to enable the two contact blocks to abut against the groove wall of the groove of the round nut, the fit clearance between the outer locking lug and the groove of the round nut is eliminated, and therefore the round nut is prevented from loosening.

Further, the inclination direction of the contact block is the reverse direction of the extension direction of the inner stop lug.

Adopt above-mentioned technical scheme, set up like this and make the touch multitouch pull into the axial outside the locking ear to go towards the top when going into in round nut's the fluting, be convenient for adjust touch multitouch inclination, make touch multitouch and grooved cell wall contradict, in addition, the incline direction of touch multitouch is the reversal of interior locking ear extending direction, moves towards one side at axle place promptly, contacts with the axle, and the cooperation sets up the interior locking ear in the keyway, can further avoid the packing ring body to counter the axle rotation relatively.

Furthermore, the inner stopping lug is a U-shaped elastic sheet.

By adopting the technical scheme, the inner locking lug is fixed in the key groove by extruding the U-shaped elastic sheet to generate outward elastic force when being arranged in the key groove on the shaft, so that the inner locking lug can be prevented from moving in the key groove due to the fit clearance between the inner locking lug and the key groove, and the gasket body is deviated and generates certain influence on the round nut.

Furthermore, a plurality of raised fixing lugs are arranged on the upper edge of the inner stopping lug along the outer side of the U-shaped elastic sheet.

Adopt above-mentioned technical scheme, set up the fixed lug of accessible like this and increase the frictional force on interior locking ear surface, prevent that interior locking ear from taking place to remove in the keyway because of the fit clearance between with the keyway.

Furthermore, the outer stop ears are arranged in a plurality of equidistant positions along the circumferential direction of the outer circumferential surface of the gasket body.

Adopt above-mentioned technical scheme, except setting up in the round nut fluting, all the other outer locking lugs can contact with the axle, and the cooperation between gasket body and the axle can be further strengthened to interior locking lug in the cooperation keyway, and the gasket body links to each other with the round nut through outer locking lug, avoids the round nut to counter shaft rotation, prevents that the nut pine from taking off.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is an assembly diagram of the present invention.

Fig. 4 is a left side view of fig. 3.

Detailed Description

The following will further describe the embodiments of the present invention with reference to the drawings and examples.

The novel backstop gasket as shown in fig. 1-4 comprises a gasket body 1, the gasket body 1 is of a planar ring structure, an inner locking lug 11 is arranged on the inner circumferential surface of the gasket body 1, an outer locking lug 12 is arranged on the outer circumferential surface of the gasket body 1, the inner locking lug 11 is bent and arranged and extends outwards along the axial direction, contact blocks 2 are respectively arranged at the two radial ends of the outer locking lug 12, the contact blocks 2 are obliquely arranged on the outer locking lug 12, and the contact blocks 2 are obliquely inclined towards the direction of another contact block 2 arranged on the same outer locking lug 12. The inner stop lug 11 is arranged in the key groove 41 of the shaft 4 and connected with the shaft 4, the outer stop lug 12 is pulled into an axial direction to be clamped in the open groove 51 of the round nut 5 after the round nut 5 is fastened and connected with the round nut 5, and the round nut 5 is connected with the shaft 4 through the inner stop lug 11 and the outer stop lug 12, so that the round nut 5 cannot be loosened due to the rotation of the shaft 4; the two contact blocks 2 on the same outer stopping lug 12 are arranged in a relatively inclined manner, after the outer stopping lug 12 is pulled into an axial direction and clamped into the groove 51 of the round nut 5, the inclined angles of the two contact blocks 2 on the outer stopping lug 12 can be adjusted to enable the two contact blocks to abut against the groove wall of the groove 51 of the round nut 5, so that a fit clearance between the outer stopping lug 12 and the groove 51 of the round nut 5 is eliminated, and the round nut 5 is prevented from loosening.

As shown in fig. 2, the direction of inclination of the contact block 2 is opposite to the direction of extension of the inner stop lug 11. Set up like this and make the contact block 2 pull into the axial outside locking ear 12 to go into the top towards when going into in the fluting 51 of round nut 5, be convenient for adjust the 2 inclination of contact block, make contact block 2 contradict with the cell wall of fluting 51, in addition, the incline direction of contact block 2 is the reversal of interior locking ear 11 extending direction, one side at axle 4 place is faced promptly, contact with axle 4, the cooperation sets up interior locking ear 11 in keyway 41, can further avoid packing ring body 1 to rotate counter shaft 4 relatively.

The inner stopping lug 11 is a U-shaped elastic sheet. When the inner stop lug 11 is arranged in the key groove 41 on the shaft 4, the U-shaped elastic sheet is extruded to generate outward elastic force, the inner stop lug 11 is fixed in the key groove 41, and the inner stop lug 11 can be prevented from moving in the key groove 41 due to the fit clearance between the inner stop lug 11 and the key groove 41, so that the gasket body 1 deviates and certain influence is generated on the round nut 5.

A plurality of raised fixing lugs 3 are arranged on the inner stopping lug 11 along the outer side of the U-shaped elastic sheet. This arrangement increases the friction on the surface of the inner stopper lug 11 by providing the fixing projection 3, and prevents the inner stopper lug 11 from moving in the key groove 41 due to the fit clearance with the key groove 41.

The fixing projections 3 are arranged in a projection shape.

The outer stop lugs 12 are arranged in a plurality along the circumferential direction of the outer circumferential surface of the gasket body 1 at equal intervals. Except for being arranged in the groove 51 of the round nut 5, the other outer stop lugs 12 can be contacted with the shaft 4, the inner stop lugs 11 in the key grooves 41 can be matched to further enhance the matching between the gasket body 1 and the shaft 4, and the gasket body 1 is connected with the round nut 5 through the outer stop lugs 12, so that the round nut 5 is prevented from rotating relative to the shaft 4, and the nut is prevented from loosening.

In this embodiment 8 outer stop ears 12 are provided.

In this embodiment 3 inner stop ears 11 are provided.

Additionally, the utility model discloses a through stamping process integrated into one piece's metalwork, the setting of supporting touch multitouch 2 is rather than integrated into one piece in the both sides of locking ear 12 outside, can buckle after receiving pressure.

The utility model discloses a black processing is boiled on surface can prevent to oxidize and rust.

Claims

1. The utility model provides a novel stopping packing ring, includes the packing ring body, the packing ring body is plane ring structure, be equipped with interior locking ear on the interior circumference of packing ring body, be equipped with outer locking ear on the outer circumference of packing ring body, interior locking ear is buckled and is set up and outwards extend its characterized in that along the axial: the radial both ends of outer locking ear are equipped with respectively and support the touch multitouch, support the touch multitouch slope and set up on outer locking ear, support the touch multitouch and incline towards the direction that sets up another touch multitouch on same outer locking ear.

2. The novel backstop gasket as recited in claim 1, wherein: the inclination direction of the contact block is the reverse direction of the extension direction of the inner stopping lug.

3. A novel backstop washer according to claim 1 or 2, characterized in that: the inner stopping lug is a U-shaped elastic sheet.

4. The novel backstop gasket as recited in claim 3, wherein: a plurality of raised fixing lugs are arranged on the upper edge of the inner stopping lug along the outer side of the U-shaped elastic sheet.

5. The novel backstop gasket as recited in claim 1, wherein: the outer stop ears are arranged in a plurality of equidistant along the circumferential direction of the outer circumferential surface of the gasket body.