CN216407513U

CN216407513U - Rotationally fixed double-lug cover

Info

Publication number: CN216407513U
Application number: CN202122576629.9U
Authority: CN
Inventors: 小林英一
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-04-29
Anticipated expiration: 2031-10-26

Abstract

The utility model discloses a rotationally fixed double-lug cover which comprises a cover body, wherein the cover body is provided with a cover bottom, a straight cylinder wall and an opening, the cover bottom is arranged on the left side surface of the cover body, the opening is arranged on one side opposite to the cover bottom, the cover bottom is fixedly connected with the straight cylinder wall, the cover body is provided with a first cutting groove and a second cutting groove, and the first cutting groove and the second cutting groove are arranged on the inner wall of the straight cylinder wall and are close to one end of the opening. The cover is not installed through axial motion realization, but the rotatory installation of circumference, provides a brand-new experience for the cover installation, and it is convenient to install, and it is also easy to pull down, need not hammer during installation and dismantlement, spanner and screwdriver directly just can accomplish with the light operation of hand, and the cover need not be done with the fixed other machining that are relevant of installation, reduces the machining process.

Description

Rotationally fixed double-lug cover

Technical Field

The utility model relates to the technical field of bearings, in particular to a rotary fixed double-lug cover.

Background

The end cover is one of widely applied mechanical parts and is a main external part of the bearing seat, the end cover generally has the functions of dust prevention and sealing in the working process of the bearing, and can be matched with a sealing piece to achieve the sealing function besides the dust prevention and sealing.

The pedestal bearing is required to have a cover in many applications, including a dust cover for sealing and a safety cover for safety protection. No content related to the cover is specified in GB/T7809 Rolling bearing insert outer spherical surface bearing seat outer dimension, GB/T7810 Rolling bearing insert outer spherical surface bearing outer dimension, JB/T5302 outer spherical surface ball bearing seat complementary structure outer dimension and JB/T5303 insert outer spherical surface ball bearing complementary structure. The shape and structure of the lid is a non-standard product from various manufacturers. For example, the stamped cover has common points with the installation aspect of the bearing seat in the current products, namely, the outer diameter of the open side of the stamped cover needs to be chamfered so as to enter the processing rabbet of the bearing seat during installation. The full outer diameter of the cover has relatively tight tolerance requirements so that the fit with the bearing seat is a full circumferential interference fit. The cover is mounted by axially pressing or knocking in, and the cover is dismounted by prying and knocking. When the hammer and the screwdriver are used for mounting and dismounting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a rotary fixed double-ear cover.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a rotatory fixed ears lid, includes the lid body, be provided with lid bottom, straight section of thick bamboo wall, uncovered on the lid body, the lid bottom sets up at lid body left surface, uncovered setting is in the relative one side in lid bottom, lid bottom and straight section of thick bamboo wall fixed connection, be provided with first grooving, second grooving on the lid body, first grooving, second grooving set up at straight section of thick bamboo wall inner wall and be close to open one end, be provided with the ear on the lid body, the ear sets up between first grooving, second grooving, be provided with the second circular arc between ear and the straight section of thick bamboo wall.

As a further description of the above technical solution:

the cover comprises a cover body and is characterized in that a first arc is arranged on the cover body and is arranged at the joint of the bottom of the cover and the straight cylinder wall.

As a further description of the above technical solution:

the ear part is provided with a first side face, a second side face and a third side face, the third side face is arranged at one end, far away from the straight cylinder wall, of the ear part, the first side face is arranged on one side, close to the first cutting groove, of the ear part, and the second side face is arranged on one side, close to the second cutting groove, of the ear part.

As a further description of the above technical solution:

ear's lateral wall is provided with third circular arc, fourth circular arc, the third circular arc sets up between first side and third side, the fourth circular arc sets up between second side and third side.

As a further description of the above technical solution:

the cover body is made by any one of stamping and injection molding.

As a further description of the above technical solution:

the cover body is made of any one of metal, plastic and nylon.

The utility model has the following beneficial effects:

compared with the prior art, the rotationally fixed double-lug cover provides a brand-new structure for the installation and fixation of the cover on the bearing seat, and the cover is not fixed with tolerance fit at the whole circumference, but is elastically rotationally fixed. The cover is not installed through axial motion realization, but the rotatory installation of circumference, provides a brand-new experience for the cover installation, and it is convenient to install, and it is also easy to pull down, need not hammer during installation and dismantlement, spanner and screwdriver directly just can accomplish with the light operation of hand, and the cover need not be done with the fixed other machining that are relevant of installation, reduces the machining process.

Drawings

FIG. 1 is a schematic cross-sectional view of an overall structure of a rotationally fixed binaural cover according to the present invention;

FIG. 2 is a side view of the overall construction of a rotationally fixed binaural cover in accordance with the present invention;

FIG. 3 is a partial cross-sectional view of an ear of a rotationally fixed binaural cover in accordance with the present invention;

FIG. 4 is a schematic view of the overall structure of a rotationally fixed binaural cover according to the present invention;

fig. 5 is a schematic view of an ear portion structure of a rotationally fixed double-ear cover according to the present invention.

Illustration of the drawings:

1. a lid body; 2. a lid bottom; 3. a first cut groove; 4. an ear portion; 5. a first arc; 6. a straight cylinder wall; 7. a second cut groove; 8. opening the mouth; 9. a second arc; 10. a third arc; 11. a fourth arc; 12. a first side surface; 13. a second side surface; 14. a third side surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a rotationally fixed binaural cover: including lid body 1, be provided with lid bottom 2 on the lid body 1, straight section of thick bamboo wall 6, uncovered 8, lid bottom 2 sets up in 1 left surface of lid body, uncovered 8 sets up in 2 relative one sides in lid bottom, lid bottom 2 and straight section of thick bamboo wall 6 fixed connection, be provided with first grooving 3 on the lid body 1, second grooving 7, first grooving 3, second grooving 7 sets up at the 6 inner walls of straight section of thick bamboo wall and is close to uncovered 8 one end, be provided with ear 4 on the lid body 1, ear 4 sets up at first grooving 3, between second grooving 7, be provided with second circular arc 9 between ear 4 and the straight section of thick bamboo wall 6.

Be provided with first circular arc 5 on the lid body 1, first circular arc 5 sets up in lid bottom 2 and straight section of thick bamboo wall 6 junction, and first circular arc 5 plays excessive effect, and when stamping process or injection molding machining, the closed angle appeared on having avoided the mould, has improved mould life.

The ear 4 is provided with a first side face 12, a second side face 13 and a third side face 14, the third side face 14 is arranged at one end, far away from the straight barrel wall 6, of the ear 4, the first side face 12 is arranged at one side, close to the first cutting groove 3, of the ear 4, the second side face 13 is arranged at one side, close to the second cutting groove 7, of the ear 4, positioning and fixing are carried out through the first side face 12 and the second side face 13, the first side face 12 is blocked by a non-return bulge on the bearing seat, and the second side face 13 is blocked by tail end positioning on the bearing seat.

The side wall of the ear 4 is provided with a third circular arc 10 and a fourth circular arc 11, the third circular arc 10 is arranged between the first side surface 12 and the third side surface 14, and the third circular arc 10 and the fourth circular arc 11 arranged between the second side surface 13 and the third side surface 14 can slide more easily during installation or disassembly.

The cover body 1 is manufactured by adopting any one of stamping and injection molding, and the cover body 1 can be conveniently processed by stamping or injection molding.

The cover body 1 is made of any one of metal, plastic and nylon, and a metal plate, plastic and nylon with certain thickness have certain elasticity, so that the cover can be clamped into the bearing seat through the elasticity to be installed.

The working principle is as follows: during installation, the ear part 4 on the cover body 1 is placed in the bearing installation groove, the cover body 1 is rotated clockwise, the ear part 4 on the cover body 1 retracts through elastic deformation, the fourth arc 11 and the third side 14 of the ear part 4 scratch the non-return bulge to enter the cover clamping groove until the second side 13 touches the positioning tail end of the bearing seat, the cover is fixed well, the cover body 1 is rotated counterclockwise during disassembly, the third arc 10 and the third side 14 scratch the non-return bulge on the bearing seat, the ear part 4 retracts through elastic deformation and continues to rotate until the ear part 4 breaks away from the non-return bulge on the bearing seat, the cover body 1 can be taken down, the first arc 5 plays an excessive role, during stamping processing or injection molding processing, sharp corners on a mold are avoided, the service life of the mold is prolonged, the stamping processing or the injection molding processing can conveniently realize the processing of the cover body 1, the subsequent machining process is omitted, the cost is saved, other tools are not needed to be used for installation and disassembly, the operation can be completed by bare hands, the metal plate with certain thickness, the plastic and the nylon are used as materials of the cover body 1, and the installation of the bearing seat can be realized by clamping the elastic card.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A rotationally fixed binaural cover comprising a cover body (1), characterized in that: the novel cap is characterized in that the cap body (1) is provided with a cap bottom (2), a straight barrel wall (6) and an opening (8), the cap bottom (2) is arranged on the left side face of the cap body (1), the opening (8) is arranged on one side opposite to the cap bottom (2), the cap bottom (2) is fixedly connected with the straight barrel wall (6), a first cutting groove (3) and a second cutting groove (7) are formed in the cap body (1), the first cutting groove (3) and the second cutting groove (7) are arranged on the inner wall of the straight barrel wall (6) and close to one end of the opening (8), an ear part (4) is arranged on the cap body (1), the ear part (4) is arranged between the first cutting groove (3) and the second cutting groove (7), and a second circular arc (9) is arranged between the ear part (4) and the straight barrel wall (6).

2. A rotationally fixed binaural cover according to claim 1, characterized in that: the cover is characterized in that a first arc (5) is arranged on the cover body (1), and the first arc (5) is arranged at the joint of the cover bottom (2) and the straight cylinder wall (6).

3. A rotationally fixed binaural cover according to claim 1, characterized in that: the novel cutting tool is characterized in that a first side face (12), a second side face (13) and a third side face (14) are arranged on the ear portion (4), the third side face (14) is arranged at one end, away from the straight barrel wall (6), of the ear portion (4), the first side face (12) is arranged on one side, close to the first cutting groove (3), of the ear portion (4), and the second side face (13) is arranged on one side, close to the second cutting groove (7), of the ear portion (4).

4. A rotationally fixed binaural cover according to claim 3, characterized in that: ear (4) lateral wall is provided with third circular arc (10), fourth circular arc (11), third circular arc (10) set up between first side (12) and third side (14), fourth circular arc (11) set up between second side (13) and third side (14).

5. A rotationally fixed binaural cover according to claim 1, characterized in that: the cover body (1) is manufactured by any one of stamping and injection molding.

6. A rotationally fixed binaural cover according to claim 1, characterized in that: the cover body (1) is made of any one of metal, plastic and nylon.