CN215101447U

CN215101447U - Swing arm type hoisting claw

Info

Publication number: CN215101447U
Application number: CN202121167110.9U
Authority: CN
Inventors: 周东贤
Original assignee: WUXI XIXI CHEMICAL MACHINE FITTINGS WORKS CO Ltd
Current assignee: WUXI XIXI CHEMICAL MACHINE FITTINGS WORKS CO Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-10
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to a swing arm formula hoist and mount claw, including the first claw body, the second claw body, supporting part and spacing portion, wherein: the first claw body is used for abutting against the bottom surface of the flange of the workpiece; the second claw body is used for tightly abutting against the top surface of the flange of the workpiece, and a positioning block is arranged on the side surface of the second claw body; the supporting part is connected with the first claw body and provided with at least two positioning grooves, and the positioning block is arranged in any one positioning groove and is in rotating fit with the positioning groove; one end of the sling is connected with the far end of the second claw body, and the other end of the sling is connected with hoisting equipment; the limiting part is bypassed at the bottom end of the sling and is connected with the far end of the second claw body, when the second claw body is tensioned by the sling, the positioning block abuts against the bottom of the positioning groove, the near end of the second claw body abuts against the top surface of the flange of the workpiece, a first included angle is formed between part of the sling and the axis of the positioning groove, and the angle of the first included angle is larger than 90 degrees. The scheme reduces the use cost of the hoisting claw, and the process of adjusting the hoisting claw is simple and convenient.

Description

Swing arm type hoisting claw

Technical Field

The utility model relates to a field of hoist especially relates to a swing arm formula hoist and mount claw.

Background

The filter body is composed of different workpieces, and when the filter body is assembled, the workpieces need to be hoisted together and welded. Therefore, in a filter processing workshop, hoisting equipment is generally arranged to hoist a processed workpiece to other stations from one station, and when the workpiece is hoisted, the workpiece needs to be clamped, so that the workpiece is prevented from falling in the hoisting process.

For the workpiece with the flange formed at the top, a plurality of hoisting claws can be arranged in the circumferential direction of the flange, the flange is clamped by the hoisting claws, and the hoisting equipment applies force to the workpiece by pulling the hoisting claws. In the actual production process of a workshop, the flange thicknesses of different workpieces are not consistent. When the hoisting claw is used for clamping workpiece flanges with different thicknesses, the opening angle of the hoisting claw needs to be adjusted, so that the flange of the workpiece is locked, and the workpiece is stably hoisted. At present, a driving device is generally arranged on a lifting claw to control the opening and closing angle of the lifting claw, but the lifting claw with the driving device is high in cost.

SUMMERY OF THE UTILITY MODEL

The not enough to above-mentioned prior art, the utility model aims at providing a swing arm formula hoist and mount claw to solve one or more problems among the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a swing arm formula hoist and mount claw, includes first claw body, second claw body, supporting part and spacing portion, wherein:

the top surface of the near end of the first claw body is used for abutting against the bottom surface of the flange of the workpiece;

the bottom surface of the near end of the second claw body is used for tightly abutting against the top surface of the flange of the workpiece, and a positioning block is arranged on the side surface of the second claw body;

the supporting part is connected with the first claw body and provided with at least two positioning grooves, the positioning grooves are arranged along the vertical direction, the positioning block is arranged in any one positioning groove, and the positioning groove is in rotating fit with the positioning block;

one end of the sling is connected with the far end of the second claw body, and the other end of the sling is connected with hoisting equipment;

spacing portion sets up on the supporting part, the bottom of hoist cable is walked around spacing portion, and with the distal end of the second claw body is connected, works as the hoist cable is taut during the distal end of the second claw body, the locating piece with the tank bottom of constant head tank offsets, the bottom surface and the work piece flange top surface of second claw body near-end offset, are located spacing portion with part between the second claw body distal end the hoist cable with form first contained angle between the axis of constant head tank, the angle of first contained angle is greater than 90.

Furthermore, a through hole is formed in the supporting portion, and the positioning groove is formed in the side wall of the through hole.

Furthermore, the supporting part comprises two side plates which are parallel to each other, the positioning grooves, the through holes and the positioning blocks are arranged in pairs, the positioning grooves or the through holes which are in the same pair are respectively arranged on the two side plates, and the positioning blocks which are in the same pair are arranged on two sides of the second claw body.

Furthermore, the positioning block is detachably connected with the second claw body.

Further, the distal end of the second claw body is provided with a protrusion for limiting the distal end of the second claw body to rotate to the maximum angle of the supporting portion so as to keep the proximal end of the second claw body extending out of the supporting portion.

Further, when the protrusion abuts against the side surface of the support portion, the side surface of the protrusion is attached to the side surface of the support portion.

Furthermore, a groove is formed in the bottom of the positioning groove, so that the positioning block is embedded in the groove.

Furthermore, the edge of the near end of the bottom surface of the second claw body is provided with an arc chamfer.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows:

when the hoisting claw is used for hoisting a workpiece, the near end of the first claw body is arranged below a flange of the workpiece to be hoisted, the near end of the second claw body is arranged above the flange of the workpiece to be hoisted, and the positioning block is arranged in the positioning groove. Tensioning the sling until the top surface of the near end of the first claw body is abutted against the bottom surface of the flange; the bottom surface of the near end of the second claw body is abutted against the top surface of the flange, so that the flange of the workpiece to be hoisted can be locked. For flanges with different thicknesses, the positioning block is only required to be manually embedded in other pairs of positioning grooves by workers, and the distance between the near end of the first claw body and the second claw body is changed, so that the flanges with different thicknesses are clamped, the use cost of the lifting claw is reduced, and the process of adjusting the lifting claw is simple and convenient.

(II) set up the through-hole to set up the constant head tank on the lateral wall of through-hole, when can avoiding the hoist and cable pine to take off, the second claw body breaks away from the supporting part, avoids the second claw body to lose, thereby the staff of being convenient for uses this hoist and mount claw.

And (III) when the far end of the second claw body is tensioned by the sling, the bulge can limit the maximum angle of the far end of the second claw body rotating to the supporting part, and when the second claw body is tensioned by the sling and rotates to the maximum angle, the side face of the bulge is tightly propped against the side face of the supporting part, so that the near end of the second claw body is kept to extend out of the supporting part, and the near end of the second claw body can be guaranteed to be propped against the top face of the flange of the workpiece to be hoisted.

Drawings

Fig. 1 shows a schematic structural view of a swing-arm type lifting claw in an embodiment of the present invention;

fig. 2 shows the schematic view of the cross-section structure of the swing-arm type lifting claw in the embodiment of the present invention.

In the drawings, the reference numbers:

1. a first jaw body; 2. a second jaw body; 21. chamfering with an arc; 22. positioning blocks; 221. a stud; 23. a protrusion; 3. a support portion; 31. a side plate; 32. a through hole; 33. positioning a groove; 34. a groove; 4. a limiting part; 41. a sling; 42. a pulley; 5. and (5) a workpiece.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description will be made in detail with reference to the accompanying drawings and the following detailed description of the present invention. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.

In order to describe the above-mentioned lifting claw more clearly, the present invention defines the terms "proximal end", "distal end" and "first included angle", and specifically, the term "proximal end" means an end of the first claw body or the second claw body closer to the workpiece flange; "distal end" means the end of the first or second jaw body that is further from the workpiece flange; the first included angle is an included angle between part of sling positioned between the limiting part and the far end of the second claw body and the axis of the positioning groove. Taking fig. 1 as an example, the left side of fig. 1 is the distal end, and the right side of fig. 1 is the proximal end. Taking fig. 2 as an example, the angle a is a first included angle.

Examples

Referring to fig. 1 and 2, the application provides a swing arm formula hoist and mount claw, and it includes first claw body 1, and integrated into one piece has supporting part 3 on the top surface of first claw body 1, and supporting part 3 includes two curb plates 31 that are parallel to each other, is equipped with second claw body 2 between two curb plates 31, and two curb plates 31 top still are connected with spacing portion 4, and welded fastening between spacing portion 4 and two curb plates 31. The far end of the second claw body 2 is connected with a sling 41, and the top end of the sling 41 bypasses the limiting part 4 and is connected with hoisting equipment.

When the lifting claw is used, the lifting equipment pulls the lifting rope 41, the lifting rope 41 drives the second claw body 2 to rotate, the bottom surface of the near end of the second claw body 2 and the top surface of the first claw body 1 respectively abut against the top surface and the bottom surface of the flange of the workpiece 5, so that the workpiece 5 is locked, and the workpiece 5 is lifted.

Referring to fig. 1 and 2, the edge of the proximal end of the second claw body 2 is chamfered to form a circular arc chamfer 21, so that when the first claw body 1 abuts against the top surface of the flange of the workpiece 5, scratching of the top surface of the flange of the workpiece 5 can be avoided.

Referring to fig. 1, a pair of through holes 32 are formed in the two side plates 31, the two through holes 32 are formed in the two side plates 31 respectively, and the two through holes 32 are arranged in the vertical direction and penetrate through the plate surfaces of the side plates 31. Still seted up four pairs of constant head tank 33 on two curb plates 31, seted up respectively on two curb plates 31 with two constant head tank 33 of pair, four constant head tanks 33 that are located on same curb plate 31 are all seted up on the through-hole 32 is close to the lateral wall of second claw body 2 near-end, and constant head tank 33 runs through the face of curb plate 31, and the opening of constant head tank 33 is down.

Referring to fig. 1, two positioning blocks 22 are respectively disposed on two sides of the second claw body 2, and two thread grooves are disposed on the side surface of the second claw body 2 and located on two sides of the second claw body 2. The positioning blocks 22 are cylindrical, the axis of each positioning block 22 is perpendicular to the side plate 31, a stud 221 is integrally formed on the end face of each positioning block 22, the studs 221 are in one-to-one threaded fit with the thread grooves, and the two positioning blocks 22 are detachably connected to two sides of the second claw body 2 respectively.

Referring to fig. 1 and 2, the positioning block 22 is placed in a pair of positioning slots 33, and when the sling 41 pulls the second claw body 2 tightly, a groove 34 is formed on the top wall of the bottom of the positioning slot 33 in order to prevent the positioning block 22 from slipping out of the positioning slot 33, and the side slot wall of the groove 34 is attached to the side surface of the positioning block 22. When the sling 41 tightens the second claw body 2, the bottom surface of the near end of the second claw body 2 is pressed against the top surface of the flange of the workpiece 5 to be hoisted, and the positioning block 22 is embedded in the groove 34, so that the possibility that the positioning block 22 slips from the positioning groove 33 is reduced.

Referring to fig. 1, two protrusions 23 are integrally formed on the side surface of the distal end of the second jaw body 2, and the two protrusions 23 are respectively located on two sides of the second jaw body 2. In addition, the bottom end of the sling 41 bypasses the limiting part 4 and is fixedly connected with the near end of the second claw body 2 in a knotting mode. The protrusion 23 is used to limit the maximum angle of rotation of the distal end of the second claw body 2 to the side plate 31, and ensure that the proximal end of the second claw body 2 always extends out of one side of the side plate 31 to abut against the top surface of the flange of the workpiece 5 to be hoisted. In order to reduce the possibility of the projection 23 being deformed by pressing against the side plate 31, the projection 23 is configured to: when the sling 41 is tightened on the second claw, and the positioning block 22 is positioned in the pair of grooves 34, and the second claw body 2 rotates to the maximum angle, the side surface of the protrusion 23 is attached to the side surface of the side plate 31. By increasing the contact area between the protrusion 23 and the side plate 31, the pressing stress between the protrusion and the side plate 31 can be reduced, thereby reducing the possibility of the protrusion 23 and the side plate 31 being deformed by pressing.

Referring to fig. 2, the position-limiting part 4 is welded and fixed between the top ends of the two side plates 31, and the bottom end of the sling 41 needs to go around the position-limiting part 4 and then be connected with the distal end of the second claw body 2. In order to reduce the friction between the position limiting part 4 and the suspension cable 41, a pulley 42 is further arranged on the position limiting part 4, and the suspension cable 41 is in sliding fit with the position limiting part 4 through the pulley 42. In order to ensure that the positioning block 22 does not slip off the notch of the positioning slot 33 when the sling 41 is pulled tight, when the sling 41 pulls the second claw body 2 tight and the bottom surface of the proximal end of the second claw body 2 abuts against the top surface of the flange of the workpiece 5 to be lifted, a first included angle is formed between the part of the sling 41 between the limiting part 4 and the distal end of the second claw body 2 and the axis of the positioning slot 33, and the angle of the first included angle needs to be greater than 90 °.

The operating principle of the rotating arm type lifting claw in the embodiment is as follows:

when the lifting claw is used for lifting a workpiece 5, the near end of the first claw body 1 is firstly arranged below the flange of the workpiece 5 to be lifted, the near end of the second claw body 2 is arranged above the flange of the workpiece 5 to be lifted, and the positioning block 22 is embedded in the groove 34. The sling 41 is tightened until the top surface of the near end of the first claw body 1 is pressed against the bottom surface of the flange; the bottom surface of the near end of the second claw body 2 is abutted to the top surface of the flange, so that the flange of the workpiece 5 to be hoisted can be locked, and the workpiece 5 to be hoisted can be hoisted by the hoisting equipment at the moment. In the scheme, for flanges with different thicknesses, only the positioning groove 33 embedded in the positioning block 22 needs to be changed manually by workers, so that the use cost of the lifting claw is reduced, and the process of adjusting the lifting claw is simple and convenient.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a swing arm formula hoist and mount claw which characterized in that: including first claw body, second claw body, supporting part and spacing portion, wherein:

2. The swing-arm type lifting claw according to claim 1, wherein: the supporting part is provided with a through hole, and the positioning groove is formed in the side wall of the through hole.

3. The swing-arm type lifting claw according to claim 2, wherein: the supporting part comprises two side plates which are parallel to each other, the positioning grooves, the through holes and the positioning blocks are arranged in pairs, the positioning grooves or the through holes which are in the same pair are respectively arranged on the two side plates, and the positioning blocks which are in the same pair are arranged on two sides of the second claw body.

4. The swing-arm type lifting claw according to claim 3, wherein: the positioning block is detachably connected with the second claw body.

5. The swing-arm type lifting claw according to claim 1, wherein: the far end of the second claw body is provided with a bulge, and the bulge is used for limiting the far end of the second claw body to rotate to the maximum angle of the supporting part so as to keep the near end of the second claw body extending out of the supporting part.

6. The swing-arm type lifting claw according to claim 5, wherein: when the protrusion abuts against the side face of the supporting part, the side face of the protrusion is attached to the side face of the supporting part.

7. The swing-arm type lifting claw according to claim 1, wherein: and a groove is formed at the bottom of the positioning groove and is used for embedding the positioning block in the groove.

8. The swing-arm type lifting claw according to claim 1, wherein: and an arc chamfer is arranged at the edge of the near end of the bottom surface of the second claw body.