CN212863830U - Lifting hook for slewing bearing - Google Patents

Abstract

The utility model relates to a technical field of slewing bearing processing, concretely relates to lifting hook for slewing bearing, include: the lifting hook comprises a lifting hook body, wherein the lifting hook body is provided with a bearing surface which is suitable for supporting a workpiece from the bottom; the lifting hook further comprises: the clamp tongue is hinged to the side edge of the lifting hook body; the bottom of the clamp tongue is hinged with a pressing block; after the workpiece is placed on the bearing surface, the lifting hook body is lifted from the top of the clamp tongue to be linked with the pressing block to press the workpiece on the bearing surface, the problems that the operation of lifting the slewing bearing is complex and the universality is poor are solved, the lifted workpiece is not easy to fall off, and the potential safety hazard in the lifting process can be effectively reduced.

Description

Lifting hook for slewing bearing

Technical Field

The utility model relates to a technical field of slewing bearing processing, concretely relates to lifting hook for slewing bearing.

Background

Chinese patent with application number CN201721615764.7, application date 2017.11.28, publication number CN207581194U and publication number 2018.07.06 discloses a hoisting device for a slewing bearing, wherein the left end and the right end of the lower part of an upper cross beam are fixedly connected with two hoisting rings, and the distance between the two hoisting rings is smaller than the inner diameter of an outer ring of the slewing bearing; the lower parts of two ends of the lower cross beam are fixedly connected with side baffles, the inner side surface of each side baffle is provided with a pressure plate, and the screw part locking the first pin penetrates through the first threaded hole through thread fit and is then rotatably connected with the outer part of the pressure plate; the left side and the right side of the lower cross beam are provided with pin holes, each pin hole is penetrated with a pin for being inserted into the mounting hole, and the fixed plate is fixedly connected with the lower cross beam through a first pin; the two lifting hooks are arranged on the left side and the right side of the lower cross beam, the upper part of a hook arm of each lifting hook is hinged with the lower cross beam, the distance between the two hinged points is equal to the inner diameter of the outer ring of the slewing bearing, and a first through hole on a lifting plate of each lifting hook is connected with the lower end of one steel wire rope; the upper ends of the two steel wire ropes are respectively connected with two lifting rings at the lower part of the upper cross beam. The device has good fixing performance on the outer ring of the slewing bearing and high safety factor.

Wherein, this hoisting accessory is only applicable to the hoist and mount of slewing bearing outer lane, it is spacing from outside-in to the slewing bearing outer lane through the clamp plate, the radial clamp to the slewing bearing outer lane is realized in the channel in the tight hook body top when rethread wire rope hoists the lifting hook, but just can't hoist and mount to the slewing bearing inner circle, need again to design a hoisting accessory in addition, this has increased equipment cost undoubtedly, simultaneously when using, need correspond the hoisting of slewing bearing outer lane and inner circle respectively with two hoisting accessory, and the elasticity of clamp force needs to be adjusted through first pin, it is extremely troublesome to use.

SUMMERY OF THE UTILITY MODEL

The hoisting slewing bearing aims at solving the problems that the hoisting slewing bearing in the prior art is complex in operation and poor in universality. The utility model provides a lifting hook for slewing bearing solves above-mentioned problem.

The utility model provides a technical scheme that its technical problem adopted is: a hook for a slewing bearing, comprising: the lifting hook comprises a lifting hook body, wherein the lifting hook body is provided with a bearing surface which is suitable for supporting a workpiece from the bottom; the lifting hook further comprises: the clamp tongue is hinged to the side edge of the lifting hook body; the bottom of the clamp tongue is hinged with a pressing block; after the workpiece is placed on the bearing surface, the lifting hook body is lifted from the top of the clamp tongue so as to link the pressing block to press the workpiece on the bearing surface.

Furthermore, the clamp tongue comprises a first connecting plate and a second connecting plate which are integrally arranged; the first connecting plate is not collinear with the second connecting plate; the first connecting plate is hinged with the hook body; the pressing block is hinged to the bottom of the first connecting plate; when the lifting hook body is lifted from the top of the second connecting plate, the first connecting plate is linked to rotate around a hinge point of the first connecting plate and the lifting hook body, so that the pressing block presses a workpiece on the bearing surface.

Furthermore, a first pin hole is formed in the first connecting plate; the first pin hole is positioned at a position close to the second connecting plate; the lifting hook body is provided with a limit hole group corresponding to the first pin hole; a first pin penetrates through the first pin hole and the limit hole group to provide a rotation center of the first connecting plate; the first connecting plate can rotate around the first pin until the pressing block presses the workpiece on the bearing surface.

Furthermore, the limiting hole group comprises a plurality of second pin holes which are vertically distributed, wherein the first pin penetrates through each second pin hole to adjust the distance between the pressing block and the bearing surface.

Furthermore, a third pin hole is formed in the top of the second connecting plate; a hanging ring is suitably arranged in the third pin hole; the steel wire rope drives the second connecting plate to link with the first connecting plate to rotate around the first pin through the hanging ring.

Further, the angle α between the first connecting plate and the second connecting plate is 120-160 °.

Furthermore, a hinged seat is integrally arranged at the top of the pressing block; the bottom of the first connecting plate is provided with a rotating groove suitable for the hinge seat to be inserted; the hinge seat is connected with the first connecting plate through a second pin; when the second connecting plate puts down the pressing block, the bottom surface of the pressing block can be kept parallel to the bearing surface.

Furthermore, the pressing block is a frustum pyramid; the bottom of the pressing block is integrally provided with a clamp block; the bottom surface of the clamp block is a pressing surface, and the area of the pressing surface is larger than that of the bottom surface of the pressing block; a jaw is formed between the pressing surface and the bearing surface; after the workpiece is placed on the jaw, the pressing block pushes the clamp block to clamp the workpiece.

Furthermore, the pressing surface is provided with a plurality of pressing grooves; the pressing grooves are arranged in parallel; the direction of the pressing groove is perpendicular to the direction of the friction force when the clamp blocks press the workpiece.

Further, the lifting hook body comprises a vertical part and a horizontal part which are integrally arranged and are perpendicular to each other, and the vertical part is provided with a clamping groove matched with the second connecting plate; the supporting surface is positioned at the top of the horizontal part; the second pin hole is located on the vertical portion.

The beneficial effects of the utility model are that, the utility model provides a lifting hook for slewing bearing, the lifting hook still includes: the clamp tongue is hinged to the side edge of the lifting hook body; the bottom of the clamp tongue is hinged with a pressing block, the bottom surface of the pressing block can be ensured to be parallel to the bearing surface in a manner that the pressing block is hinged with the clamp tongue, so that the pressing block can be better contacted with a workpiece, the clamping effect is improved, and the top of the clamp tongue can be lifted by a steel wire rope;

during the use, need set up two lifting hooks relatively and use, arrange in at the work piece back on the bearing surface, follow the top of pincers tongue is hung lifting hook body, pincers tongue self take place to rotate in order to link the briquetting gyration downwards, the briquetting gyration downwards compresses tightly the work piece on the bearing surface, specifically, the briquetting pushes down on the up end of work piece, and then the axial compresses tightly the work piece, compares in the mode that radially compresses tightly the work piece, and the work piece that can the adaptation difference of this embodiment lifts by crane the work, and the commonality is better, and can realize from pressing from both sides tight effect, has greatly improved the convenience of use, and simultaneously, the work piece of hoist and mount is difficult for droing, can reduce the potential safety hazard in the hoist and mount process effectively.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a perspective view of a preferred embodiment of a hook for a slewing bearing of the present invention;

FIG. 2 is a perspective view of a preferred embodiment of the present invention;

FIG. 3 is a front view of a preferred embodiment of the present invention;

fig. 4 is a perspective view of a preferred embodiment of the hook body of the present invention;

fig. 5 is a perspective view of a preferred embodiment of the press block of the present invention.

In the drawings

The lifting hook comprises a lifting hook body 1, a bearing surface 11, a limit hole group 12, a second pin hole 121, a vertical part 13, a clamping groove 131 and a horizontal part 14;

the clamp tongue 2, the first connecting plate 21, the first pin hole 211, the rotating groove 212, the second connecting plate 22 and the third pin hole 221;

the pressing block 3, the hinge seat 31, the clamp block 32, the pressing surface 321 and the pressing groove 322;

a first pin 4;

a second pin 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1, fig. 1 is a perspective view of a preferred embodiment of a hook for a slewing bearing according to the present invention; as shown in fig. 1, the present invention provides a hook for a slewing bearing, including: the lifting hook comprises a lifting hook body 1, wherein the lifting hook body 1 is provided with a bearing surface 11 which is suitable for supporting a workpiece from the bottom; traditional lifting hook is when lifting by crane the work piece, only with placing of work piece on lifting hook body 1's bearing surface 11, connect lifting hook body 1 respectively through two wire ropes and make wire rope have both sides to the clamp force of work piece, thereby the condition that the work piece drops when reducing the hoist and mount work piece, but the potential safety hazard in hoist and mount in-process is still bigger, there has been the mode of clamping the work piece inside and outside wall through hook portion and briquetting among the prior art and realizing the lifting by crane to the work piece, the hoist and mount security has greatly been improved, however, such mode commonality is relatively poor, and the operation is complicated, use cost is higher, in order to solve above-mentioned problem, need to adopt following scheme:

the lifting hook further comprises: the clamp tongue 2 is hinged to the side edge of the lifting hook body 1; the bottom of the clamp tongue 2 is hinged with a pressing block 3, and the mode that the pressing block 3 is hinged with the clamp tongue 2 can ensure that the bottom surface of the pressing block 3 is parallel to the bearing surface 11, so that the pressing block can be better contacted with a workpiece, the clamping effect is improved, and the top of the clamp tongue 2 can be lifted by a steel wire rope; during the use, need set up two lifting hooks relatively and use, arrange in the work piece on the bearing surface 11 after, follow the top of pincers tongue 2 is hung lifting hook body 1, pincers tongue 2 self takes place to rotate in order to link briquetting 3 gyration downwards, briquetting 3 gyration downwards compresses tightly the work piece on the bearing surface 11, specifically, briquetting 3 pushes down on the up end of work piece, and then the axial compresses tightly the work piece, compares in the mode that radially compresses tightly the work piece, and the work piece that can the adaptation difference of this embodiment lifts by crane work, and the commonality is better, and can realize from pressing from both sides tight effect, has greatly improved the convenience of use, and simultaneously, the work piece of hoist and mount is difficult for droing, can reduce the potential safety hazard in the hoist and mount process effectively.

In this embodiment, the workpiece may be an outer ring of the slewing bearing or an inner ring of the slewing bearing, and then two sets of lifting hooks are not required to be designed to lift the outer ring or the inner ring after the outer ring and the inner ring of the slewing bearing are machined, so that the outer ring and the inner ring can be lifted universally through the lifting hooks of this embodiment.

The utility model discloses a design point is to change radial clamp tight into the axial and compress tightly to adaptation slewing bearing's outer lane and the hoist and mount of inner circle simultaneously, the commonality is better, simultaneously, self-holding when can realizing lifting hook body 1 and pincers tongue 2 cooperation hoisting work piece, and it is more convenient to use, and presss from both sides tight effect better.

Referring to fig. 2 and 3, fig. 2 is a perspective view of a preferred embodiment of the latch of the present invention; FIG. 3 is a front view of a preferred embodiment of the present invention; as shown in fig. 1 to 3, optionally, the clamp tongue 2 includes a first connecting plate 21 and a second connecting plate 22 which are integrally arranged, the second connecting plate 22 is lifted by a steel wire rope, the first connecting plate 21 is hinged to the hook body 1 to enable the first connecting plate 21 to rotate, and the first connecting plate 21 and the second connecting plate 22 are integrally arranged to ensure the strength between the first connecting plate 21 and the second connecting plate 22 and ensure that the pressing block 3 can press the workpiece when the second connecting plate 22 is lifted; the first connecting plate 21 is not collinear with the second connecting plate 22, specifically, an angle is formed between the first connecting plate 21 and the second connecting plate 22, the opening between the first connecting plate 21 and the second connecting plate 22 can be towards the inner side of the hook body 1 or towards the outer side of the hook body 1, however, when the inner angle between the first connecting plate 21 and the second connecting plate 22 is towards the outer side, the second connecting plate 22 can only be lifted to have an angle with the hook body 1, so that the second connecting plate 22 has other component forces besides the force lifted by the steel wire rope, which increases the strength required by the second connecting plate 22; when the inner angle between the first connecting plate 21 and the second connecting plate 22 faces the inner side of the lifting hook body 1, the second connecting plate 22 can be lifted by the steel wire rope to be parallel to the lifting hook body 1, the force borne by the second connecting plate 22 is only vertical upward force when the second connecting plate is parallel to the lifting hook body 1, the force required to be borne by the second connecting plate 22 is small, and the requirement for producing the second connecting plate 22 is reduced; the pressing block 3 is hinged to the bottom of the first connecting plate 21; when the lifting hook body 1 is lifted from the top of the second connecting plate 22, the first connecting plate 21 is linked to rotate around a hinge point of the first connecting plate 21 and the lifting hook body 1, so that the workpiece is pressed on the bearing surface 11 by the pressing block, and the workpiece is self-clamped.

Referring to fig. 4, fig. 4 is a perspective view of a preferred embodiment of the hook body of the present invention; as shown in fig. 1 to 4, optionally, the first connecting plate 21 is provided with a first pin hole 211; the first pin hole 211 is located at a position close to the second connection plate 22; the lifting hook body 1 is provided with a limit hole group 12 corresponding to the first pin hole 211; a first pin 4 passes through the first pin hole 211 and the limit hole group 12 to provide a rotation center of the first connection plate 21; the first connecting plate 21 can rotate around the first pin 4 to the pressing block 3 to press the workpiece on the bearing surface 11, so that the rotation of the first connecting plate 21 is realized, the rotation stability of the first connecting plate 21 can be ensured in such a way, and the installation is convenient.

In this embodiment, the first pin 4 and the first pin hole 211 are both quenched by high frequency to enhance the wear resistance thereof, so as to realize better rotational stability between the first connection plate 21 and the hook body 1.

Optionally, the limit hole group 12 includes a plurality of second pin holes 121 vertically distributed, wherein the first pin 4 penetrates through each second pin hole 121 to adjust the distance between the pressing block 3 and the bearing surface 11, so that the clamping range of the workpiece can be adjusted, the workpieces with different thicknesses can be hoisted, and the universality is further improved.

Optionally, a third pin hole 221 is formed in the top of the second connecting plate 22; a hanging ring is matched in the third pin hole 221; the steel wire rope drives the second connecting plate 22 through the hanging ring to link the first connecting plate 21 to rotate around the first pin 4, so that the second connecting plate 22 is lifted, specifically, the steel wire rope is not directly contacted with the second connecting plate 22, friction of the second connecting plate 22 in the lifting process is reduced, and the service life of the second connecting plate 22 is guaranteed.

Optionally, the angle α between the first connecting plate 21 and the second connecting plate 22 is preferably 150 °, when the angle α between the first connecting plate 21 and the second connecting plate 22 is greater than 150 °, the second connecting plate 22 is hard to rotate to be parallel to the hook body 1, and when the angle α between the first connecting plate 21 and the second connecting plate 22 is less than 150 °, when the second connecting plate 22 rotates to be parallel to the hook body 1, the workpiece is not yet pressed by the pressing block, and when the second connecting plate 22 rotates to be parallel to the hook body 1, the second connecting plate 22 does not rotate any more, so that the workpiece is not pressed further, and further, when the angle α between the first connecting plate 21 and the second connecting plate 22 is 150 °, the pressing effect on the workpiece is the best.

Optionally, a hinge seat 31 is integrally arranged at the top of the pressing block 3; the bottom of the first connecting plate 21 is provided with a rotating groove 212 suitable for the hinge seat 31 to be inserted into, and the hinge seat 31 can only be separated from the opening of the rotating groove 212 by inserting the hinge seat 31 into the rotating groove 212, so that the connection stability of the hinge seat 31 and the first connecting plate 21 is improved; the hinge seat 31 is connected with the first connecting plate 21 through a second pin 5; when the pressing block is placed on the second connecting plate 22, the pressing block 3 rotates around the second pin 5 to keep the bottom surface of the pressing block parallel to the bearing surface 11, and further the pressing effect on the workpiece is better.

Referring to fig. 5, fig. 5 is a perspective view of a preferred embodiment of the press block of the present invention; as shown in fig. 1 to 5, optionally, the pressing block 3 is a frustum pyramid, and the area of the lower end of the pressing block 3 is larger than that of the upper end, so that the pressing force bearing surface of the pressing block 3 is increased, and the pressing effect is further improved; the bottom of the pressing block 3 is integrally provided with a clamp block 32, specifically, the clamp block 32 is a silica gel non-slip mat, the clamp block 32 is integrally arranged with the pressing block 3 in a bonding mode, and the clamp block 32 plays a role in preventing slipping and protecting the surface of a workpiece from being scratched; the bottom surface of the clamp block 32 is a pressing surface 321, and the area of the pressing surface 321 is larger than that of the bottom surface of the pressing block 3, so that the pressing stress surface is further increased, and the pressing effect is improved; and a jaw is formed between the pressing surface 321 and the bearing surface 11; after the workpiece is placed on the jaw, the pressing block 3 pushes the clamp block 32 to clamp the workpiece, so that the clamping effect of the workpiece is ensured.

Preferably, in order to further improve the clamping effect of the workpiece, the pressing surface 321 is provided with a plurality of pressing grooves 322; the pressing grooves 322 are arranged in parallel; the direction of the pressing groove 322 is perpendicular to the direction of the friction force when the clamp block 32 presses the workpiece, and the friction coefficient of the pressing surface 321 is improved by increasing the pressing groove 322, so that the friction force between the clamp block 32 and the workpiece is improved, and the clamping effect of the workpiece is further improved.

Optionally, the hook body 1 includes a vertical portion 13 and a horizontal portion 14 that are integrally disposed and perpendicular to each other, and the vertical portion 13 is provided with a clamping groove 131 adapted to the second connecting plate 22; the bearing surface 11 is positioned at the top of the horizontal part 14; the second pin hole 121 is located on the vertical portion 13, the vertical portion 13 and the horizontal portion 14 are both forged by high-quality alloy steel, and no welding exists between the vertical portion 13 and the horizontal portion 14, so that high strength and durability of the pin hole can be effectively guaranteed.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. A hook for a slewing bearing, comprising: the lifting hook body is characterized in that,

the lifting hook body is provided with a bearing surface which is suitable for supporting a workpiece from the bottom;

the lifting hook further comprises: the clamp tongue is hinged to the side edge of the lifting hook body;

the bottom of the clamp tongue is hinged with a pressing block; wherein

After the workpiece is placed on the bearing surface, the lifting hook body is lifted from the top of the clamp tongue so as to link the pressing block to press the workpiece on the bearing surface.

2. The hook for slewing bearing as claimed in claim 1,

the clamp tongue comprises a first connecting plate and a second connecting plate which are integrally arranged;

the first connecting plate is not collinear with the second connecting plate;

the first connecting plate is hinged with the hook body;

the pressing block is hinged to the bottom of the first connecting plate; wherein

When the lifting hook body is lifted from the top of the second connecting plate, the first connecting plate is linked to rotate around a hinge point of the first connecting plate and the lifting hook body, so that the pressing block presses the workpiece on the bearing surface.

3. The hook for slewing bearing as claimed in claim 2,

the first connecting plate is provided with a first pin hole;

the first pin hole is positioned at a position close to the second connecting plate;

the lifting hook body is provided with a limit hole group corresponding to the first pin hole;

a first pin penetrates through the first pin hole and the limit hole group to provide a rotation center of the first connecting plate; wherein

The first connecting plate can rotate around the first pin until the pressing block presses the workpiece on the bearing surface.

4. A lifting hook for a slewing bearing as claimed in claim 3,

the limit hole group comprises a plurality of second pin holes which are vertically distributed, wherein

And the first pin penetrates through each second pin hole to adjust the distance between the pressing block and the bearing surface.

5. The hook for slewing bearing as claimed in claim 4,

the top of the second connecting plate is provided with a third pin hole;

a hanging ring is suitably arranged in the third pin hole; wherein

The steel wire rope drives the second connecting plate to link with the first connecting plate to rotate around the first pin through the hanging ring.

6. The hook for slewing bearing as claimed in claim 5,

the angle alpha between the first connecting plate and the second connecting plate is 120-160 degrees.

7. The hook for slewing bearing as claimed in claim 6,

the top of the pressing block is integrally provided with a hinged seat;

the bottom of the first connecting plate is provided with a rotating groove suitable for the hinge seat to be inserted; and

the hinge seat is connected with the first connecting plate through a second pin; wherein

When the second connecting plate puts down the pressing block, the bottom surface of the pressing block can be kept parallel to the bearing surface.

8. The hook for a slewing bearing as claimed in claim 7,

the pressing block is a frustum pyramid; and

the bottom of the pressing block is integrally provided with a clamp block;

the bottom surface of the clamp block is a pressing surface, and the area of the pressing surface is larger than that of the bottom surface of the pressing block; and

a jaw is formed between the pressing surface and the bearing surface; wherein

And after the workpiece is placed on the jaw, the pressing block pushes the clamp block to clamp the workpiece.

9. The hook for a slewing bearing as claimed in claim 8,

the pressing surface is provided with a plurality of pressing grooves;

the pressing grooves are arranged in parallel;

the direction of the pressing groove is perpendicular to the direction of the friction force when the clamp blocks press the workpiece.

10. The hook for a slewing bearing as claimed in claim 8,

the lifting hook body comprises a vertical part and a horizontal part which are integrally arranged and are perpendicular to each other, and the vertical part is provided with a clamping groove matched with the second connecting plate;

the supporting surface is positioned at the top of the horizontal part;

the second pin hole is located on the vertical portion.

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