CN101492141B

CN101492141B - Large-scale crane hook set

Info

Publication number: CN101492141B
Application number: CN2009100105267A
Authority: CN
Inventors: 田树海; 邵龙成
Original assignee: Dalian Huarui Co Ltd
Current assignee: Dalian Huarui Heavy Industry Group Co Ltd
Priority date: 2009-03-02
Filing date: 2009-03-02
Publication date: 2011-04-20
Anticipated expiration: 2029-03-02
Also published as: CN101492141A

Abstract

The invention discloses a large-scale crane hook group, which mainly comprises pulleys, pulley shafts, a spherical roller bearing, a spherical roller pushing force bearing, hook nuts and a shedding preventing chain, and the large-scale crane hook group also comprises pulley supporting frames, a hinge shaft I, a balance beam, a hinge shaft II, a hook shaft, an upper part of a hook body and the hook body, wherein the pulleys are divided into two groups by two pulley shafts, and each group is connected with one pulley supporting frame to form two pulley groups; the pulley supporting frames are respectively connected with the balance beam through the hinge shaft I, the balance beam is connected with the hook shaft through the hinge shaft II, the lower part of the hook shaft is connected with the hook nuts through screw threads, and the upper part of the hook body is connected to the hook body in a welding form. The large-scale crane hook group solves the problem of deflexion caused by the change in length of a steel wire rope and makes the processing and the assembly of large-scale forging hook shafts and large-scale forging hook bodies realize simply and easily. The large-scale crane hook group has the advantages of simple structure style, convenient assembly and low cost.

Description

A kind of large-scale crane hook group

Technical field

The present invention relates to a kind of elevator machinery, especially a kind of suspension hook group of large scale hoisting machinery.

Background technology

Increase along with the marine drilling platform demand, it is more and more busier that the installation and maintenance of drilling platform also becomes, originating firm is for accelerating the installation and maintenance process of drilling platform, shorten the manufacturing cycle, cost-cutting simultaneously is to being installed in the requirement that crane output on the Safe Challenger-SSCV semisubmersible platform proposes to reach 1500t.In order to satisfy the needs that load-carrying ability increases, the suspension hook group in the 1500t crane hook group need adopt the form of four paws suspension hook, and the four paws suspension hook of this dispersion suspension centre can bear bigger load, but has following shortcoming:

1, because the size of four paws suspension hook itself and deadweight are all bigger, if adopt integral form, difficulty is all compared in processing and installation;

2, owing to be wrapped in steel rope on the suspension hook group pulley from two reels independently, the suspension hook group deflection that the deviation of two rope capacities can cause.

Summary of the invention

For solving the problems referred to above that prior art exists, the present invention will design a kind of processing and large-scale crane hook group easy for installation, that can solve suspension hook group imbalance problem simultaneously again.

To achieve these goals, technical scheme of the present invention is as follows: a kind of large-scale crane hook group mainly comprises pulley, sheave shaft, spherangular roller bearing, spherical roller thrust baring, hook nut, anticreep chain, also comprise pulley bracket, hinge I, equalizing bar, hinge II, suspension hook axle, hook top, hook, described sheave shaft has two, pulley is divided into two groups, each group links to each other with a pulley bracket respectively, constitutes two assembly pulleys; Described pulley bracket is connected with equalizing bar by hinge I respectively, and equalizing bar is connected with the suspension hook axle by hinge II, and the bottom of suspension hook axle is connected with hook nut by screw thread, and the top of hook nut is equipped with the spherical roller thrust baring; Described hook is installed in the top of spherical roller thrust baring, between hook and suspension hook axle, spherangular roller bearing is installed, hook top is connected on the hook by the form of welding, described anticreep chain is connected with the suspension hook axle with hook top by the shackle at two ends, is installed between hook and the suspension hook axle.

Two sheave shafts of the present invention are parallel to each other.

In the middle of the hook of the present invention mounting hole is arranged, in the mounting hole middle lower portion bearings mounted groove is arranged, hook is installed in the top of spherical roller thrust baring by groove.

Compared with prior art, the present invention has following beneficial effect:

1, because pulley bracket of the present invention is connected with equalizing bar by hinge I respectively, just can makes equalizing bar swing to adjust by such pivotally attached connection and change the deflection problem that causes owing to be wrapped in two groups of rope capacities on the assembly pulley around hinge I;

2, because the top of hook nut of the present invention is equipped with the spherical roller thrust baring, hook is placed on the top of spherical roller thrust baring, hook is freely rotated in the horizontal direction, between hook and suspension hook axle, spherangular roller bearing is installed, not only can bears the effect that horizontal force can also play friction when reducing the hook rotation;

3, because the mode that the present invention adopts hook and suspension hook axle to separate, design and installation hole in the middle of hook, and bearings mounted groove is arranged in the mounting hole middle lower portion, make large-sized forging suspension hook axle and forge the processing of hook and the installation simply easier realization that becomes, thereby be not subjected to the restriction of size.

Description of drawings

3 in the total accompanying drawing of the present invention, wherein:

Fig. 1 is the front view of large-scale crane hook group.

Fig. 2 is the A-A cutaway view of large-scale crane hook group.

Fig. 3 is the scheme drawing that the large-scale crane hook group is corrected the rope capacity deviation.

Among the figure: 1, pulley, 2, sheave shaft, 3, pulley bracket, 4, hinge I, 5, equalizing bar, 6, hinge II, 7, the suspension hook axle, 8, the anticreep chain, 9, hook top, 10, spherangular roller bearing, 11, hook, 12, the spherical roller thrust baring, 13, hook nut.

The specific embodiment

Below in conjunction with accompanying drawing the present invention is described further.As Figure 1-3, a kind of large-scale crane hook group mainly comprises pulley 1, sheave shaft 2, spherangular roller bearing 10, spherical roller thrust baring 12, hook nut 13, anticreep chain 8, also comprise pulley bracket 3, hinge I 4, equalizing bar 5, hinge II 6, suspension hook axle 7, hook top 9, hook 11, described sheave shaft 2 has two, pulley 1 is divided into two groups, each group links to each other with a pulley bracket 3 respectively, constitutes two assembly pulleys; Described pulley bracket 3 is connected with equalizing bar 5 by hinge I 4 respectively, and equalizing bar 5 is connected with suspension hook axle 7 by hinge II 6, and the bottom of suspension hook axle 7 is connected with hook nut 13 by screw thread, and the top of hook nut 13 is equipped with spherical roller thrust baring 12; Described hook 11 is installed in the top of spherical roller thrust baring 12, between hook 11 and suspension hook axle 7, spherangular roller bearing 10 is installed, hook top 9 is connected on the hook 11 by the form of welding, described anticreep chain 8 is connected with suspension hook axle 7 with hook top 9 by the shackle at two ends, is installed between hook 11 and the suspension hook axle 7; Described two sheave shafts 2 are parallel to each other; In the middle of the described hook 11 mounting hole is arranged, in the mounting hole middle lower portion bearings mounted groove is arranged, hook 11 is installed in the top of spherical roller thrust baring 12 by groove.

Claims

1. a large-scale crane hook group mainly comprises pulley (1), sheave shaft (2), spherangular roller bearing (10), spherical roller thrust baring (12), hook nut (13), anticreep chain (8), also comprise pulley bracket (3), hinge I (4), equalizing bar (5), hinge II (6), suspension hook axle (7), hook (11) top (9), hook (11), described sheave shaft (2) has two, pulley (1) is divided into two groups, each group links to each other with a pulley bracket (3) respectively, constitutes two assembly pulleys; Described pulley bracket (3) is connected with equalizing bar (5) by hinge I (4) respectively, equalizing bar (5) is connected with suspension hook axle (7) by hinge II (6), the bottom of suspension hook axle (7) is connected with hook nut (13) by screw thread, and the top of hook nut (13) is equipped with spherical roller thrust baring (12); Described hook (11) is installed in the top of spherical roller thrust baring (12), between hook (11) and suspension hook axle (7), spherangular roller bearing (10) is installed, hook top (9) is connected on the hook (11) by the form of welding, described anticreep chain (8) is connected with suspension hook axle (7) with hook top (9) by the shackle at two ends, is installed between hook (11) and the suspension hook axle (7); Described two sheave shafts (2) are parallel to each other; In the middle of the described hook (11) mounting hole is arranged, in the mounting hole middle lower portion bearings mounted groove is arranged, hook (11) is installed in the top of spherical roller thrust baring (12) by groove.