CN212581343U

CN212581343U - High-safety lifting hook group for hoisting equipment

Info

Publication number: CN212581343U
Application number: CN202020532893.5U
Authority: CN
Inventors: 王晓明
Original assignee: Greno Jiangsu Intelligent Equipment Co ltd
Current assignee: Greno Jiangsu Intelligent Equipment Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2021-02-23
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses a lifting hook group of high security for hoisting equipment, including cover plate, pulley shaft and lifting hook, the cover plate is cylindric hollow structure and is equipped with two altogether, the both ends of pulley shaft are nested respectively two the center department of cover plate, hexagon socket head cap screw with be equipped with the packing ring between the pulley protection shield, the bearing has been cup jointed at the both ends of pulley shaft, the fixed surface of bearing is connected with the pulley, the inside and outside both sides of bearing respectively through second shaft sleeve and first axle sleeve with the cover plate closely laminates, two the inboard of cover plate all is equipped with the arm-tie, two the bottom fixedly connected with lifting hook crossbeam of arm-tie, the top fixedly connected with thrust ball bearing of lifting hook crossbeam, the top fixedly connected with lifting hook nut of thrust ball bearing. This hoisting equipment is with lifting hook group of high security simple structure, simple to operate has realized that lifting hook atress is balanced and stable in the lift process, has improved overall structure's stability and security.

Description

High-safety lifting hook group for hoisting equipment

Technical Field

The utility model belongs to the technical field of hoisting machinery, concretely relates to lifting hook group of high security for hoisting equipment.

Background

A set of hooks is the most common type of spreader in hoisting machinery. The hook is often suspended from the wire rope of the hoisting mechanism by means of a pulley block or the like. The lifting hook is divided into a single hook and a double hook according to the shape, and is divided into a forging lifting hook and a laminated lifting hook according to the manufacturing method. The single hook is simple to manufacture and convenient to use, but has poor stress condition, and is mostly used in working occasions with the lifting capacity of less than 80 tons; when the lifting capacity is large, double hooks with symmetrical stress are often adopted. The laminated lifting hook is formed by riveting a plurality of steel plates formed by cutting, the whole lifting hook cannot be damaged when cracks appear on individual plates, the safety is better, the dead weight is larger, and the laminated lifting hook is mostly used on a crane for lifting a large load or a lifting molten steel ladle. The high-safety hook group for the single-hook lifting device is good in stress condition and safety performance.

Disclosure of Invention

An object of the utility model is to provide a lifting hook group of high security for hoisting equipment to solve the current single hook lifting hook group atress condition of high security for the hoisting equipment poor, the relatively poor problem of security.

In order to achieve the above object, the utility model provides a following technical scheme: a high-safety hook group for hoisting equipment comprises cover plates, pulley shafts and lifting hooks, wherein the cover plates are of cylindrical hollow structures and are provided with two cover plates, two ends of each pulley shaft are respectively embedded in the centers of the two cover plates, a pulley protection plate extending from the center to the bottom end is arranged on the outer side of each cover plate and is fixedly connected with the pulley shafts through at least four inner hexagonal screws, gaskets are arranged between the inner hexagonal screws and the pulley protection plates, bearings are sleeved at two ends of each pulley shaft, pulleys are fixedly connected to the surfaces of the bearings, the inner sides and the outer sides of the bearings are respectively tightly attached to the cover plates through second shaft sleeves and first shaft sleeves, pull plates are arranged on the inner sides of the two cover plates, lifting hook cross beams are fixedly connected to the bottoms of the two pull plates, and thrust ball bearings are fixedly connected to the tops of the lifting hook cross beams, the top of the thrust ball bearing is fixedly connected with a lifting hook nut, and the top of the lifting hook penetrates through the lifting hook cross beam and the thrust ball bearing and is embedded in the lifting hook nut.

Preferably, the opening of the lifting hook is movably connected with a safety clamp device.

Preferably, a nameplate for displaying information of the hook set for the lifting equipment with high safety is fixedly connected to the center of the outer surface of the pulley protection plate.

Preferably, the top of the pulling plate is flush with the top of the pulley protection plate, and the bottom of the pulling plate extends downwards and is 7-15 cm away from the bottom end of the cover plate.

Preferably, lubricating grease is further added into the bearing, and the lifting hook nut and the inner hexagon screw are coated with thread glue.

Preferably, one side of the lifting hook nut is provided with a screw and is fixedly connected with the lifting hook through the screw.

The utility model discloses a technological effect and advantage: this lifting hook group of high security for hoisting equipment simple structure, simple to operate sets up the pulley through the both ends symmetry at the pulley shaft for lifting hook atress is balanced and stable in lift process, through setting up cover plate protection pulley, avoids the collision through setting up arm-tie and pulley protection shield plate, and then has improved overall structure's stability and security.

Drawings

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

fig. 2 is a right side sectional view of the present invention.

In the figure: 1-cover plate, 2-pulley, 3-pulling plate, 4-first shaft sleeve, 5-pulley shaft, 6-pulley protecting plate, 7-hook nut, 8-hook beam, 9-hook, 10-safety clamp device, 11-nameplate, 12-inner hexagon screw, 13-washer, 14-thrust ball bearing, 15-second shaft sleeve and 16-bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a high-safety hook group for hoisting equipment as shown in the figure, which comprises a cover plate 1, pulley shafts 5 and lifting hooks 9, wherein the cover plate 1 is of a cylindrical hollow structure and is provided with two pulley shafts 5, two ends of the pulley shafts 5 are respectively embedded at the centers of the two cover plates 1, the outer side of the cover plate 1 is provided with a pulley protection plate 6 extending from the center to the bottom end, the pulley protection plate 6 is fixedly connected with the pulley shafts 5 through at least four hexagon socket head cap screws 12, a gasket 13 is arranged between the hexagon socket cap screws 12 and the pulley protection plate 6, two ends of the pulley shafts 5 are sleeved with bearings 16, the surface of the bearings 16 is fixedly connected with pulleys 2, the inner side and the outer side of each bearing 16 are respectively closely attached with the cover plate 1 through a second shaft sleeve 15 and a first shaft sleeve 4, the inner sides of the two cover plates 1 are provided with pull plates 3, two bottom fixedly connected with lifting hook crossbeam 8 of arm-tie 3, the top fixedly connected with thrust ball bearing 14 of lifting hook crossbeam 8, thrust ball bearing 14's top fixedly connected with lifting hook nut 7, lifting hook crossbeam 8 and thrust ball bearing 14 are run through and are nested in lifting hook nut 7 in the top of lifting hook 9. In addition, the opening of the lifting hook 9 is movably connected with a safety clamp device 10, so that the hooked objects can be effectively prevented from falling off, and the safety performance is improved. The data plate 11 for displaying the high-safety hook group information for the hoisting equipment is fixedly connected to the center of the outer surface of the pulley protection plate 6, so that the high-safety hook group information for the hoisting equipment can be clearly displayed for an operator, the performance of the high-safety hook group for the hoisting equipment can be expected by the operator, and the high-safety hook group for the hoisting equipment can be conveniently and reasonably used. The top of arm-tie 3 with the top of pulley protection shield 6 flushes mutually, the bottom downwardly extending of arm-tie 3 and distance the bottom 7 ~ 15cm of cover plate 1 both give lifting hook crossbeam 8 provides installation and supporting platform, also can prevent effectively that lifting hook 9 from colliding the inner wall of cover plate 1 when rocking about, has improved life. Lubricating grease is added into the bearing 16, and the hook nut 7 and the socket head cap screw 12 are coated with thread glue, so that the wear resistance, extreme pressure resistance, oxidation resistance, corrosion resistance and high temperature resistance of the bearing 16 are improved, the bearing 16 is comprehensively protected, the service life of the bearing 16 is prolonged, and the thread glue can be effectively prevented from loosening in threaded connection. One side of the lifting hook nut 7 is provided with a screw and is fixedly connected with the lifting hook 9 through the screw, so that the stability and the safety of the structure are improved.

The working principle is as follows: when this hoisting equipment uses the hook group of high security, the wire rope of winding on pulley 2 is connected with the reel of hoist, then press safety clamp device 10 and hang the object of required jack-up on lifting hook 9, the gravity of object passes through lifting hook 9 and transmits to lifting hook crossbeam 8 on, then transmit to two arm-tie 3 through lifting hook crossbeam 8 on, then evenly transmit to cover plate 1 through arm-tie 3 on, last wire rope through on pulley 2 transmits to the reel, the reel rotates and drives the hook group of high security for the jack-up equipment evenly to rise or descend, the atress is even and then the lift process is very steady, after taking off the hoist and mount object, lifting hook 9 rocks about because of the artificial reason, owing to set up arm-tie 3 and pulley protection board 6, it damages cover plate 1 to have avoided lifting hook 9 collision. This hoisting equipment is with lifting hook group of high security simple structure, simple to operate sets up pulley 2 through the both ends symmetry at pulley shaft 5 for 9 atress of lifting hook are balanced and stable in lift process, through setting up cover plate 1 protection pulley 2, protect cover plate 1 through setting up arm-tie 3 and pulley protection shield 6 and avoid the collision, and then improved overall structure's stability and security.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a lifting hook group of hoisting equipment with high security, includes cover plate (1), pulley shaft (5) and lifting hook (9), its characterized in that: the cover plate (1) is of a cylindrical hollow structure and is provided with two cover plates, two ends of a pulley shaft (5) are respectively embedded at the centers of the two cover plates (1), the outer side of each cover plate (1) is provided with a pulley protection plate (6) extending to the bottom end from the center, the pulley protection plate (6) is fixedly connected with the pulley shaft (5) through at least four inner hexagon screws (12), a gasket (13) is arranged between each inner hexagon screw (12) and the pulley protection plate (6), two ends of each pulley shaft (5) are sleeved with bearings (16), the surface of each bearing (16) is fixedly connected with a pulley (2), the inner side and the outer side of each bearing (16) are respectively tightly attached to the cover plates (1) through second shaft sleeves (15) and first shaft sleeves (4), the inner sides of the two cover plates (1) are respectively provided with a pull plate (3), two bottom fixedly connected with lifting hook crossbeam (8) of arm-tie (3), the top fixedly connected with thrust ball bearing (14) of lifting hook crossbeam (8), the top fixedly connected with lifting hook nut (7) of thrust ball bearing (14), the top of lifting hook (9) is run through lifting hook crossbeam (8) and thrust ball bearing (14) and is nested in lifting hook nut (7).

2. The high-safety hook group for hoisting equipment according to claim 1, wherein: the opening of the lifting hook (9) is movably connected with a safety card device (10).

3. The high-safety hook group for hoisting equipment according to claim 1, wherein: the center of the outer surface of the pulley protection plate (6) is fixedly connected with a nameplate (11) used for displaying high-safety hook group information for hoisting equipment.

4. The high-safety hook group for hoisting equipment according to claim 1, wherein: the top of arm-tie (3) with the top of pulley protection board (6) flushes mutually, the bottom downwardly extending of arm-tie (3) just apart from the bottom 7 ~ 15cm of cover plate (1).

5. The high-safety hook group for hoisting equipment according to claim 1, wherein: lubricating grease is also added into the bearing (16), and thread glue is coated on the lifting hook nut (7) and the inner hexagonal screw (12).

6. The high-safety hook group for hoisting equipment according to claim 1, wherein: and one side of the lifting hook nut (7) is provided with a screw and is fixedly connected with the lifting hook (9) through the screw.