CN216471799U

CN216471799U - Turnable and rotatable lifting lug

Info

Publication number: CN216471799U
Application number: CN202122601127.7U
Authority: CN
Inventors: 郭艳霞
Original assignee: Baoding Tieren Machinery Manufacturing Co ltd
Current assignee: Baoding Tieren Machinery Manufacturing Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-05-10
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a lifting lug capable of overturning and rotating, and relates to the technical field of lifting accessories. The rotating piece comprises a barrel part with a first shaft hole, a pair of first rotating shaft parts which are positioned on the side wall of the barrel part, oppositely arranged and outwardly extended from the axis of the first shaft hole along the same radial direction of the first shaft hole, and the rotating piece is of an integrated structure; the hook hanger is used for hooking the crane and is provided with a second shaft hole corresponding to the first rotating shaft part; the connecting piece is used for connecting with a hung object; the second shaft hole is sleeved on the first rotating shaft part so that the hook hanging part and the rotating part form rotating connection, and the connecting part and the rotating part form rotating connection through matching with the first shaft hole. It has great bearing capacity, and is not fragile in the hoist and mount in-process.

Description

Turnable and rotatable lifting lug

Technical Field

The utility model relates to the technical field of hoisting accessories, in particular to a lifting lug capable of being turned and rotated.

Background

The lifting lug is a stressed member which is arranged on the lifted object and used for lifting. For the convenience of hoisting, some lifting lugs in the prior art are composed of three parts, including a rotating part, a hooking part and a connecting part. The connecting piece is used for being connected with a hung object, and the hook hanging piece is used for hooking the crane. If the hung object is a motor, a threaded hole is formed in the motor, the connecting piece is a bolt, the bolt is introduced in the vertical direction as an example, the bolt is connected with the motor in the threaded hole in a threaded mode, the rotating piece is connected with the bolt in a rotating mode and can rotate around the vertical axis of the bolt, a horizontal shaft or a horizontal shaft hole is formed in the rotating piece, and the hook hanging piece is arranged on the horizontal shaft or the shaft hole in a rotating mode. So after the screw hole spiro union on bolt and the motor, the hook spare can be around vertical rotation, also can be around the upset of horizontal axis, conveniently adjusts the hook spare to the direction of the loop wheel machine hook of being convenient for. Because the hoisted object is heavy, the lifting lug needs to have good mechanical properties, and each part and structure can bear heavy gravity. The existing lifting lug is easy to damage when being subjected to larger gravity.

Therefore, how to manufacture a lifting lug can meet the above requirements becomes a problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lifting lug capable of overturning and rotating, which has larger bearing capacity.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a lifting lug capable of overturning and rotating, which comprises:

the rotating piece comprises a barrel body part with a first shaft hole, a pair of first rotating shaft parts which are arranged on the side wall of the barrel body part oppositely and extend outwards from the axis of the first shaft hole along the same radial direction of the first shaft hole, and the rotating piece is of an integrated structure;

the hook piece is used for hooking the crane and is provided with a second shaft hole corresponding to the first rotating shaft part;

the connecting piece is used for connecting with the hung object;

the second shaft hole is sleeved on the first rotating shaft part so that the hook piece and the rotating piece are in rotating connection, and the connecting piece is in rotating connection with the rotating piece through matching with the first shaft hole.

Optionally, the connecting member includes a rotating shaft portion rotatably connected to the first shaft hole, a first position-limiting portion for abutting against the first end surface of the barrel portion, and a connecting portion exposed outside the second end surface of the barrel portion.

Optionally, the connecting member further includes a second limiting portion for abutting against the second end face of the barrel portion.

Optionally, the connecting member includes a bolt and a sleeve screwed on the bolt, the sleeve forms the rotating shaft portion, the bolt head of the bolt forms the first limiting portion, a portion of the screw of the bolt exposed outside the sleeve forms the connecting portion, a convex edge is provided on a side wall of one end of the sleeve away from the bolt head, and the convex edge forms the second limiting portion.

Optionally, a fastening glue is poured at the screwed joint of the sleeve and the bolt.

Optionally, a bearing hole is formed in one end, close to the bolt head, of the barrel, a thrust bearing is arranged in the bearing hole, the rod portion of the bolt penetrates through the thrust bearing, and the bolt head abuts against the thrust bearing.

Optionally, the bolt head is provided with one or more of a groove matched with an inner hexagonal wrench, a protrusion matched with an outer hexagonal wrench and a groove matched with a screwdriver.

Optionally, the hook member is U-shaped.

Optionally, a clamp spring groove is formed in the side wall of each first rotating shaft portion and located at a position outside the hook, a clamp spring is connected in the clamp spring groove in a clamped mode, and the clamp spring is used for limiting the hook to move along the axial direction of the first rotating shaft portion.

Optionally, the connecting piece comprises a sleeve and a nut, the sleeve is provided with a rotating shaft part and a threaded connecting hole penetrating through the rotating shaft part, and the rotating shaft part is matched with the first shaft hole to form rotary connection; the first one of barrel portion is provided with the dead eye, be provided with thrust bearing in the dead eye, the nut freely sets up thrust bearing's top.

The technical scheme provided by the utility model can have the following beneficial effects: the utility model comprises a rotating piece, wherein the rotating piece comprises a barrel part with a first shaft hole, a pair of first shaft parts which are positioned on the side wall of the barrel part, oppositely arranged and extend outwards from the axis of the first shaft hole along the same radial direction of the first shaft hole, and the rotating piece is of an integrated structure; the hook piece is used for hooking the crane and is provided with a second shaft hole corresponding to the first rotating shaft part; the connecting piece is used for connecting with the hung object; the second shaft hole is sleeved on the first rotating shaft part so that the hook hanging part and the rotating part form rotating connection, and the connecting part and the rotating part form rotating connection through matching with the first shaft hole. It has great bearing capacity, and is not fragile in the hoist and mount in-process.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of the reversible, rotatable lifting lug shown in the first embodiment;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a top view of the hook member of FIG. 1 turned to a horizontal position;

FIG. 4 is a schematic view of the hook member of FIG. 1 in various inverted states;

fig. 5 is a front view of the reversible, rotatable lifting lug shown in the second embodiment.

In the figure: 1. a rotating member; 2. a hook; 3. a connecting member; 4. a clamp spring; 5. a thrust bearing; 11. a barrel portion; 12. a first shaft portion; 21. a second shaft hole; 31. a bolt; 32. a sleeve; 33. a nut; 111. a first shaft hole; 112. a bearing bore; 121. a clamp spring groove; 311. a bolt head; 321. a convex edge; 322. and (4) connecting the holes by screw threads.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Specifically, "front" refers to a direction approaching the viewer perpendicular to the paper surface, and "rear" refers to a direction departing the viewer perpendicular to the paper surface. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus or methods consistent with certain aspects of the utility model.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.

Referring to fig. 1-5, the present invention provides a reversible and rotatable lifting lug, which comprises a rotating member 1, wherein the rotating member 1 comprises a cylindrical body 11 with a first shaft hole 111, a pair of first shaft portions 12 which are oppositely arranged on the side wall of the cylindrical body 11 and extend outwards from the axis of the first shaft hole 111 along the same radial direction of the first shaft hole 111, and the rotating member 1 is of an integrated structure; the hook piece 2 is used for hooking the crane and is provided with a second shaft hole 21 corresponding to the first rotating shaft part 12; a connecting piece 3 used for connecting with the hung object; wherein, the second shaft hole 21 is sleeved on the first shaft part 12 to make the hook member 2 and the rotating member 1 form a rotating connection, and the connecting member 3 and the rotating member 1 form a rotating connection through the matching with the first shaft hole 111.

The rotating part 1 is of an integrated structure, plays a role in force transmission in the hoisting process, generates direct force action with the connecting part 3 and the hook part 2, and generates relatively-turnable rotary connection with the hook part 2 and relatively-rotatable rotary connection with the connecting part 3. The mechanical property of the rotating part 1 is critical to the bearing capacity of the whole lifting lug. The barrel 11 and the first shaft 12 are of an integral structure, so that the mechanical property is good. In order to meet the installation requirement in the prior art, the rotating member is often arranged as a split structure (consisting of a cylinder part and a rotating shaft), for example: the cylinder body is vertically arranged to explain that the cylinder body is provided with a vertical first shaft hole and a horizontal second shaft hole, the second shaft hole is staggered with the first shaft hole and does not intersect with the first shaft hole, and the rotating piece cannot be symmetrical about the vertical plane of the axis of the second shaft hole. The two separated ends of the hook piece are provided with third shaft holes, and then the rotating shaft penetrates through the second shaft holes and the third shaft holes to form rotating connection. When in hoisting, the stress condition of the rotating piece is not good. The axis of the first shaft hole 111 and the axis of the first rotating shaft part 12 are positioned on the same plane, the rotating part 1 is symmetrical about the plane, the stress condition is good, and the rotating part 1 is of an integrated structure (the barrel part 11 and the first rotating shaft part 12 are of the integrated structure) and has large bearing capacity, so that the bearing capacity of the bearing type rotating shaft is large, and the bearing type rotating shaft is not easy to damage in the hoisting process.

It should be noted that, the installation of the rotating member 1 and the hook member 2 can be performed by various methods, for example, the rotating member 1 can be manufactured first, then the hook member 2 is formed by bending, and the second shaft hole 21 is simultaneously sleeved on the first rotating shaft part 12 in the bending process; or the hook piece 2 is formed by casting (under the condition that the casting technology can meet the hoisting strength), the second shaft hole 21 is directly cast and sleeved on the first rotating shaft part 12 to form rotating connection with the first rotating shaft part during the casting, or the mounting connection of the first rotating shaft part and the first rotating shaft part is completed by other methods during the forming.

The connecting member 3 includes a rotating shaft portion rotatably connected to the first shaft hole 111, a first stopper portion for abutting against the first end surface of the barrel portion 11, and a connecting portion exposed outside the second end surface of the barrel portion 11.

Thus, the cylinder body 11 supports the first position-limiting part to apply force to the connecting member 3 during hoisting.

The connecting piece 3 further comprises a second limiting part which is used for abutting against the second end face of the barrel part 11.

The second limiting part is added to prevent the connecting piece 3 from falling off the first shaft hole 111 when the lifting lug is not lifted or is transported or moved.

The connecting piece 3 comprises a bolt 31 and a sleeve 32 screwed on the bolt 31, the sleeve 32 forms a rotating shaft part, a bolt head 311 of the bolt 31 forms a first limiting part, the part of a screw rod of the bolt 31 exposed out of the sleeve 32 forms a connecting part, a convex edge 321 is arranged on the side wall of one end of the sleeve 32 far away from the bolt head 311, and the convex edge 321 forms a second limiting part.

The structure has the advantages of simple installation, and firm connection because the connecting part is in threaded connection with the hung object. Of course, the connecting part can be a hook or other structures.

The screwed joint of the sleeve 32 and the bolt 31 is filled with locking glue.

The sleeve 32 and the bolt 31 can be connected more firmly without loosening by pouring the locking glue. Of course, other auxiliary fastening structures may be used to keep the sleeve 32 and bolt 31 from loosening.

One end of the barrel 11 close to the bolt head 311 is provided with a bearing hole 112, a thrust bearing 5 is arranged in the bearing hole 112, the rod part of the bolt 31 penetrates through the thrust bearing 5, and the bolt head 311 is abutted against the thrust bearing 5.

The increase of the thrust bearing 5 can change the sliding friction between the contact end surfaces of the bolt head 311 and the barrel part 11 into the rolling friction of the thrust bearing 5, reduce the abrasion, and simultaneously enable the rotation of the rotating part 1 relative to the connecting part 3 to be more flexible.

The bolt head 311 is provided with one or more of a groove matched with an inner hexagonal wrench, a protrusion matched with an outer hexagonal wrench, and a groove matched with a screwdriver.

Therefore, when the device is connected with a hung object, the device can be fastened by adopting a corresponding inner hexagonal wrench, a corresponding screwdriver and a corresponding outer hexagonal wrench.

The hook member 2 is U-shaped.

The hook piece 2 is U-shaped, simple in structure and good in stress effect.

A clamp spring groove 121 is formed in the position, located on the outer side of the hook piece 2, on the side wall of each first rotating shaft portion 12, a clamp spring 4 is connected in the clamp spring groove 121 in a clamped mode, and the clamp spring 4 is used for limiting the hook piece 2 to move along the axial direction of the first rotating shaft portion 12. The outer side of the hook member 2 is inward in the direction approaching the first shaft hole 111.

So, the hooking part 2 can get spacing by touching of lateral wall and jump ring 4, replace and get spacing by the touching of inside wall and barrel 11, reduce the collision to rotating member 1.

The connecting piece 3 comprises a sleeve 32 and a nut 33, the sleeve 32 is provided with a rotating shaft part and a threaded connecting hole 322 penetrating through the rotating shaft part, and the rotating shaft part is matched with the first shaft hole 111 to form rotating connection; a bearing hole 112 is provided at a first end of the cylindrical body 11, a thrust bearing 5 is provided in the bearing hole 112, and the nut 33 is freely provided above the thrust bearing 5.

Therefore, when the object to be hoisted is provided with the external threaded column, the sleeve 32 is in threaded connection with the external threaded column through the threaded connection hole 322, the external threaded column penetrates through the threaded connection hole 322 and the thrust bearing 5, and then the nut 33 is screwed.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.

Although embodiments of the present invention have been shown and described, it will be understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention.

Claims

1. The utility model provides a lug that can overturn, rotate which characterized in that includes:

the rotating piece (1) comprises a barrel part (11) with a first shaft hole (111), a pair of first rotating shaft parts (12) which are oppositely arranged on the side wall of the barrel part (11) and extend outwards from the axis of the first shaft hole (111) along the same radial direction of the first shaft hole (111), and the rotating piece (1) is of an integrated structure;

the hook hanger (2) is used for hooking the crane, and the hook hanger (2) is provided with a second shaft hole (21) corresponding to the first rotating shaft part (12);

a connecting piece (3) used for connecting with the hung object;

the second shaft hole (21) is sleeved on the first rotating shaft part (12) to enable the hooking piece (2) to be in rotating connection with the rotating piece (1), and the connecting piece (3) is in rotating connection with the rotating piece (1) through matching with the first shaft hole (111).

2. The reversible, rotatable lifting lug according to claim 1, characterized in that said connecting member (3) comprises a rotation shaft portion rotatably connected to said first shaft hole (111), a first stopper portion for abutting against a first end surface of said barrel portion (11), and a connecting portion exposed from a second end surface of said barrel portion (11).

3. The invertible rotatable lifting lug according to claim 2, wherein the connector (3) further comprises a second stop portion for abutting against the second end surface of the barrel portion (11).

4. The reversible, rotatable lifting lug according to claim 3, characterized in that the connecting element (3) comprises a bolt (31) and a sleeve (32) screwed onto the bolt (31), the sleeve (32) forms the rotation shaft, the bolt head (311) of the bolt (31) forms the first limit part, the part of the screw of the bolt (31) exposed outside the sleeve (32) forms the connecting part, the side wall of the sleeve (32) at the end far away from the bolt head (311) is provided with a convex edge (321), and the convex edge (321) forms the second limit part.

5. The invertible rotatable lifting lug according to claim 4, wherein the threaded connection between the socket (32) and the bolt (31) is impregnated with a locking glue.

6. The invertable rotatable shackle according to claim 4, characterised in that the end of the barrel portion (11) adjacent to the bolt head (311) is provided with a bearing hole (112), that a thrust bearing (5) is arranged in the bearing hole (112), that the shank of the bolt (31) passes through the thrust bearing (5), and that the bolt head (311) abuts against the thrust bearing (5).

7. The invertable rotatable lifting lug according to claim 4, wherein the bolt head (311) is provided with one or more of a recess for mating with an internal hex wrench, a protrusion for mating with an external hex wrench, and a recess for mating with a screwdriver.

8. The invertible, rotatable ear of claim 1, wherein the hooking member is U-shaped.

9. The reversible, rotatable lifting lug according to claim 1, characterized in that a snap spring groove (121) is formed in the side wall of each first shaft portion (12) at a position outside the hooking member (2), a snap spring (4) is snapped in the snap spring groove (121), and the snap spring (4) is used for limiting the axial movement of the hooking member (2) along the first shaft portion (12).

10. The reversible, rotatable lifting lug according to claim 1, characterized in that the connecting element (3) comprises a sleeve (32) and a nut (33), the sleeve (32) is provided with a rotating shaft part and a threaded connection hole (322) penetrating through the rotating shaft part, and the rotating shaft part is matched with the first shaft hole (111) to form a rotating connection; the first end of barrel portion (11) is provided with dead eye (112), be provided with thrust bearing (5) in dead eye (112), nut (33) freely sets up thrust bearing (5) top.