CN211254962U - Single rope hook assembly - Google Patents

Abstract

The utility model discloses a single-rope hook device, which comprises a wedge-shaped joint, a chock block, a hook, a beam and two pulling plates, wherein the chock block is arranged inside the wedge-shaped joint; the two pulling plates are respectively positioned on two sides of the wedge-shaped joint and are connected with the lower end of the wedge-shaped joint; the free ends of the two pulling plates are rotatably connected with the lifting hook through a bearing; the free ends of the two pulling plates are connected with a cross beam together, and the cross beam is rotatably connected with the lifting hook through the bearing. The utility model discloses stability when can increase the use reduces the potential safety hazard.

Description

Single rope hook assembly

Technical Field

The utility model relates to a hoist technical field, concretely relates to single rope hook assembly.

Background

The multiplying power of the pulleys of the hoisting mechanism in the hoisting machinery industry is 2/1, 4/1, 4/2, 8/2 and the like, and the hoisting height of the hoisting mechanism with the multiplying power of the pulleys is generally below 50 meters. However, in some special use occasions, for example, in an LNG liquefied natural gas environment, the lifting height is required to be several tens of meters or even hundreds of meters, and under the working condition of a larger lifting height, a structural design with a lifting multiplying power of 1/1 is mostly adopted.

In the prior art, a lifting hook structure with the lifting multiplying power of 1/1 consists of a lifting hook and a lifting ring rotationally connected with the lifting hook, and a steel wire rope is connected to the lifting ring. However, in the using process of the lifting hook structure, the connection part of the lifting ring and the steel wire rope is unstable, and the potential safety hazard of the lifting hook structure in the using process is increased.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a single rope hook assembly, its stability when can increase the use reduces the potential safety hazard.

In order to solve the technical problem, the utility model provides a single-rope lifting hook device, which comprises a wedge-shaped joint, a chock block, a lifting hook and two pulling plates, wherein the chock block is arranged inside the wedge-shaped joint; the two pulling plates are respectively positioned on two sides of the wedge-shaped joint and are connected with the lower end of the wedge-shaped joint; the free ends of the two pulling plates are rotatably connected with the lifting hook through a bearing.

Furthermore, the free ends of the two pulling plates are connected with a cross beam together, and the cross beam is rotatably connected with the lifting hook through the bearing.

Furthermore, the lower end parts of the two pulling plates are commonly penetrated with a fastener.

Furthermore, the wedge-shaped joint is connected with the two pulling plates through a pin shaft, and a shaft end clamping plate is arranged at the end part of the pin shaft.

Furthermore, spacer bushes are arranged between the two pulling plates and the side walls of the wedge-shaped joints so as to reduce the axial movement of the pin shaft.

Furthermore, the upper end inlay card of lifting hook has the cardboard, the cardboard include first cardboard and with the second cardboard of first cardboard concatenation, first cardboard with the connection can be dismantled to the second cardboard.

Further, the lifting hook comprises a hook part, a step part and a positioning part, the clamping plate is connected with the step part through the bearing, and the end part of the clamping plate can be abutted to the positioning part.

Furthermore, a dust cover is detachably arranged above the cross beam.

The utility model has the advantages that:

the end part of the steel wire rope penetrates into the wedge-shaped joint and penetrates out of the wedge-shaped joint around the chock block, and when the steel wire rope bears the tensile force, the chock block is continuously tensioned by the steel wire rope; by utilizing the principle of reverse drawing of the wedge sleeve, the stability of the connection between the steel wire rope and the wedge joint is improved, and the potential safety hazard is reduced;

the wedge-shaped joint and the pulling plate can integrally and freely rotate by taking the bearing as a base line, so that the tightening force of the steel wire rope during working can be released, and the steel wire rope is prevented from being stranded; meanwhile, the lifting hook can freely rotate by taking the bearing as a base line, and can flexibly lift and place a heavy object; the center lines of the lifting hook and the steel wire rope are collinear, so that the single-rope lifting hook device is uniformly loaded, and the unbalance loading phenomenon is reduced.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a side view of the present invention;

fig. 4 is a schematic view of the hook structure.

The reference numbers in the figures illustrate: 1. a wedge joint; 2. a chock block; 3. a wire rope; 4. a pin shaft; 41. shaft end snap-gauge; 42. a spacer sleeve; 5. pulling a plate; 51. a fastener; 6. a cross beam; 61. a bearing; 7. a hook; 71. a hook portion; 72. a step portion; 73. a positioning part; 8. clamping a plate; 9. and a dust cover.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1 and 3, the utility model discloses an embodiment of single rope hook assembly, including wedge joint 1, chock 2, lifting hook 7 and two arm-tie 5, chock 2 inlays and establishes the upper end at wedge joint 1, and wire rope 3's tip is worn to establish into inside wedge joint 1 to wear out around chock 2, wire rope 3's the end of wearing out passes through the rope clip and fixes. When the steel wire rope 3 bears the tensile force, the chock 2 is continuously tensioned by the steel wire rope 3, and the stability of the steel wire rope 3 and the wedge-shaped joint 1 in the connection process is improved by utilizing the principle of reverse pulling of the wedge sleeve.

Referring to fig. 1 and 3, two pulling plates 5 are respectively located at both sides of the wedge joint 1, and both pulling plates 5 are connected with the lower end portion of the wedge joint 1, while the free ends of both pulling plates 5 are connected with the hook 7 through a bearing 61. When a heavy object is placed on the lifting hook 7, the pulling plate 5 and the wedge-shaped joint 1 sequentially transmit pulling force to the steel wire rope 3, so that the heavy object is lifted by the steel wire rope 3. In this embodiment, the lower end portions of the two pulling plates 5 and the wedge-shaped joint 1 are connected through the pin shaft 4, and the end portion of the pin shaft 4 is detachably provided with the shaft end clamping plate 841, so that the shaft end clamping plate 841 is utilized to limit the pulling plate 5 to move relative to the axial direction of the wedge-shaped joint 1, the stability of the joint of the wedge-shaped joint 1 and the pulling plate 5 is improved, and the potential safety hazard during use is reduced. Utilize round pin axle 4 to realize wedge-shaped joint 1 and arm-tie 5's connection simultaneously for two arm-ties 5 can keep the rotation of certain angle for wedge-shaped joint 1, can adjust the pulling force that arm-tie 5 bore and follow vertical direction all the time at the in-process of lifting by crane, have reduced moment of flexure and the moment of torsion that arm-tie 5 bore, thereby can improve the stability of arm-tie 5 during operation, prolong single rope hook assembly's life.

Referring to fig. 1 to 3, in the present embodiment, the wedge shoe 1, the pulling plate 5, and the cross member 6 are capable of rotating freely as a whole based on the bearing 61, so that the tightening force of the wire rope 3 during operation can be released, and the wire rope 3 is prevented from being stranded. Meanwhile, the hook 7 can also freely rotate by taking the bearing 61 as a base line, so that the lifting hook can flexibly lift and place heavy objects. The central lines of the lifting hook 7 and the steel wire rope 3 are collinear, so that the single-rope lifting hook device is uniformly loaded, and the unbalance loading phenomenon is reduced.

Referring to fig. 1 and 2, the lower ends of the two pulling plates 5 are connected with a cross beam 6, and two ends of the cross beam 6 can be inserted into the pulling plates 5 to fix the cross beam 6 and the two pulling plates 5. The above-mentioned bearing 61 is provided in the cross beam 6, and the upper end portion of the hook 7 is inserted inside the bearing 61, so that the rotational connection of the hook 7 and the pulling plate 5 is achieved by the bearing 61, and the bearing 61 is preferably a thrust cylindrical roller bearing 61 in this embodiment. The cross beam 6 is used for connecting the bearing 61 and the two pulling plates 5, so that the stability of the connecting position can be improved. Meanwhile, when the two pulling plates 5 bear upward pulling force, the pulling plates 5 can generate torque around the connection part of the pulling plates 5 and the wedge-shaped joint 1, so that the distance between the lower ends of the two pulling plates 5 can be changed, and because the requirement of the bearing 61 on the position precision is higher, the connection between the cross beam 6 and the two pulling plates 5 is utilized to absorb the variable of the distance between the two pulling plates 5, and the position precision of the bearing 61 is ensured.

Referring to fig. 1 and 2, as mentioned above, when the two pulling plates 5 receive the pulling force applied to them by the wedge joint 1, the pulling plates 5 will generate a torque around their connection with the wedge joint 1, so that the distance between the lower ends of the two pulling plates 5 increases and the two pulling plates are deformed in a shape of a Chinese character 'ba'. In order to reduce the displacement of the two pulling plates 5, the lower end parts of the two pulling plates 5 are commonly penetrated with a fastening piece 51, and the fastening piece 51 is utilized to apply reverse thrust to the pulling plates 5 so as to keep the variation of the distance between the two pulling plates 5 within the range of deformation allowance. In this embodiment, the fastening member 51 can be a screw rod, so as to be adjusted according to the lifted object.

Referring to fig. 1 to 4, the hook 7 includes a hook portion 71, a step portion 72, and a positioning portion 73, which are sequentially provided, the hook portion 71 is used to connect a hoisted object, the step portion 72 is used to engage with the bearing 61, and a displacement of hoisting is limited by the positioning portion 73. Step 72 cover of lifting hook 7 in this embodiment is equipped with catch plate 8, the cooperation of catch plate 8 and the inner circle of bearing 61 to realize the rotation of lifting hook 7 and crossbeam 6 and be connected. Meanwhile, the upper end surface of the card 8 abuts against the positioning portion 73 to restrict the displacement of the card 8.

Referring to figures 1 and 2, to facilitate the mounting of the catch plate 8 and hook 7, the catch plate 8 is arranged in a split manner. Cardboard 8 includes first cardboard and the second cardboard of splicing with first cardboard to first cardboard and second cardboard can pass through fastening screw detachable connection.

Referring to fig. 1 and 2, a dust cap 9 is detachably attached to an upper end surface of the cross beam 6 to reduce dust and small particle impurities falling into the bearing 61 and maintain stability of the working performance of the bearing 61.

Referring to fig. 1, a spacer 42 is arranged between each of the two pulling plates 5 and the side wall of the wedge-shaped joint 1, the spacer 42 is sleeved outside the pin shaft 4, and the axial movement of the pin shaft 4 can be absorbed and reduced by the spacer 42, so as to maintain the connection stability between the pulling plates 5 and the wedge-shaped joint 1.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (8)

1. The single-rope hook device is characterized by comprising a wedge-shaped joint, a chock block, a hook and two pulling plates, wherein the chock block is placed inside the wedge-shaped joint; the two pulling plates are respectively positioned on two sides of the wedge-shaped joint and are connected with the lower end of the wedge-shaped joint; the free ends of the two pulling plates are rotatably connected with the lifting hook through a bearing.

2. The single rope hook assembly of claim 1 wherein the free ends of the two pull plates are connected together by a cross beam, said cross beam being rotatably connected to said hook by said bearing.

3. The single rope hanger assembly of claim 1 in which the lower ends of the two pull plates are commonly provided with fasteners.

4. The single rope hook assembly as claimed in claim 1, wherein said wedge joint is connected to said pull plates by a pin, said pin having an end catch at its end.

5. The single rope hook assembly as claimed in claim 4, wherein spacers are provided between each of said pull plates and said sidewalls of said wedge fitting to reduce axial play of said pin.

6. The single rope lifting hook assembly of claim 2, wherein the lifting hook has a snap-in plate at its upper end, the snap-in plate comprises a first snap-in plate and a second snap-in plate joined to the first snap-in plate, and the first snap-in plate and the second snap-in plate are detachably connected.

7. The single rope hook assembly as claimed in claim 6, wherein said hook includes a hook portion, a step portion and a positioning portion, said catch plate being connected to said step portion by said bearing, an end of said catch plate being capable of abutting said positioning portion.

8. The single rope hanger assembly of claim 2 in which a dust cap is removably positioned over the cross member.

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