CN213231268U - Pulley block for bridge crane - Google Patents

Abstract

The utility model discloses an assembly pulley for bridge crane, including protecting crust, outer protecting crust and lifting hook, the both sides fixed mounting of protecting crust has the dead lever, the bottom fixed mounting of dead lever has the removal wheel, the inside movable mounting of protecting crust has first fixed pulley, the bottom fixed mounting of protecting crust has the second fixed pulley, the bottom of second fixed pulley has the movable pulley through outer protecting crust movable mounting, fixed mounting has the accepting frame on the outer protecting crust in the protecting box outside, the both sides all movable mounting of accepting frame have spacing pulley, the bottom of outer protecting crust has the lifting hook through rotating assembly movable mounting. The utility model discloses a spacing pulley of both sides movable mounting at the accepting frame makes spacing pulley can support spacingly between the wire rope through first spring, makes the difficult emergence winding of wire rope, has the anticreep buckle through the side movable mounting at the lifting hook, and the condition that can effectually prevent the unhook has improved the security.

Description

Pulley block for bridge crane

Technical Field

The utility model relates to a hoist technical field specifically is a assembly pulley for bridge crane.

Background

The pulley block is a simple machine assembled by a plurality of movable pulleys and fixed pulleys, is a simple hoisting tool for saving labor and changing speed, and is one of indispensable parts of the hoisting machine.

The existing pulley block for the bridge crane has the defects that:

1. the steel wire ropes are easy to wind in the hoisting process due to the absence of a good limiting device, so that the hoisting cannot be normally carried out, and the working efficiency is reduced;

2. the lifting hook is not provided with a good anti-tripping structure, so that the lifting hook and the material are easily unhooked when the lifting is rocked, and the safety is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pulley block for bridge crane to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an assembly pulley for bridge crane, includes protecting crust, outer protecting crust and lifting hook, the both sides fixed mounting of protecting crust has the dead lever, the bottom fixed mounting of dead lever has the removal wheel, the inside movable mounting of protecting crust has first fixed pulley, the bottom fixed mounting of protecting crust has the second fixed pulley, the bottom of second fixed pulley has the movable pulley through outer protecting crust movable mounting, the top fixed mounting of outer protecting crust has the protection box that corresponds with the movable pulley, fixed mounting has the accepting frame on the outer protecting crust in the protection box outside, the both sides of accepting the frame all movable mounting have spacing pulley, the bottom of outer protecting crust has the lifting hook through rotating assembly movable mounting.

Preferably, the protective shell is provided with a first opening matched with the first fixed pulley, the fixed rod and the movable wheel are fixedly installed through a fixed frame, and the fixed frame and the fixed rod are supported and fixed through a supporting rod.

Preferably, the second fixed pulley and the protective shell are fixedly installed through a pulley yoke, the bearing frame and the limiting pulley are movably installed through a movable frame, and the movable frame and the bearing frame are movably installed through a first spring.

Preferably, the top fixed mounting who accepts the frame has solid fixed ring, around having the wire rope in the first fixed pulley, the wire rope passes around movable pulley and second fixed pulley and solid fixed ring fixed connection through spacing pulley.

Preferably, the protection box is provided with a second opening matched with the steel cable, and the outer protective shell and the rotating assembly are fixedly installed through a fixed seat.

Preferably, through sliding seat movable mounting between lifting hook and the rotating component, one side movable mounting of lifting hook has the anticreep buckle, through second spring movable mounting between anticreep buckle and the lifting hook.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a spacing pulley of both sides movable mounting at the accepting frame can make spacing pulley can support with the laminating of wire rope through first spring and carry on spacingly between the wire rope, can make the difficult emergence winding of wire rope at the in-process of jack-up, has improved hoisting efficiency.

2. The utility model discloses a side movable mounting at the lifting hook has the anticreep buckle, can pass through the hook mouth department of anticreep buckle card at the lifting hook, can effectually prevent that the rope hitch in the lifting hook from taking place the condition of unhook, has improved the security.

3. The utility model discloses a fixed mounting has the protection box that corresponds with the movable pulley on outer protecting crust, can effectually prevent that external article from causing the influence, convenient and practical to the movable pulley in entering into outer protecting crust.

4. The utility model discloses an install the sliding seat in rotating assembly's bottom, can utilize rotating assembly and sliding seat cooperation, can make the lifting hook can carry out multidirectional activity, reduce rocking of lifting hook top device, improved the jack-up stability.

Drawings

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

FIG. 2 is a schematic view of the structure of the limiting pulley of the present invention;

FIG. 3 is a schematic view of the structure of the hook of the present invention;

fig. 4 is a schematic view of the appearance structure of the protection box of the present invention.

In the figure: 1. a first fixed pulley; 2. a protective shell; 201. fixing the rod; 202. a first opening; 3. a second fixed pulley; 301. a pulley yoke; 4. a moving wheel; 401. a support bar; 402. a fixed mount; 5. a limiting pulley; 501. a first spring; 502. a movable frame; 6. a movable pulley; 7. a protective case; 701. a second opening; 8. an outer protective shell; 801. a receiving frame; 802. a fixing ring; 9. a rotating assembly; 901. a fixed seat; 902. a movable seat; 10. a hook; 1001. a second spring; 1002. an anti-falling buckle; 11. a steel cable.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: a pulley block for a bridge crane comprises a protective shell 2, an outer protective shell 8 and a lifting hook 10, wherein fixed rods 201 are fixedly arranged on two sides of the protective shell 2 through bolts, movable wheels 4 are fixedly arranged at the bottoms of the fixed rods 201 through bolts through a fixed frame 402, the device can be moved on a lifting frame through butt joint of the movable wheels 4, the fixed frame 402 and the fixed rods 201 are supported and fixed through supporting rods 401 through bolts, the structural stability of the fixed rods 201 can be improved, a first fixed pulley 1 is movably arranged in the protective shell 2 through a movable shaft, a first opening 202 matched with the first fixed pulley 1 is formed in the protective shell 2, a steel cable rope 11 can be wound on the first fixed pulley 1, a second fixed pulley 3 is fixedly arranged at the bottom of the protective shell 2 through a pulley frame 301 through bolts, the pulley frame 301 and the second fixed pulley 3 are movably arranged through the movable shaft, a movable pulley 6 is movably arranged at the bottom of the second fixed pulley 3 through the outer protective shell, the lifting device is used for driving a lifting hook 10 to lift, a protective box 7 corresponding to a movable pulley 6 is fixedly installed at the top of an outer protective shell 8 through bolts, the operation of the movable pulley 6 can be reduced by the protective box 7 when external objects enter the outer protective shell 8, a second opening 701 matched with a steel cable rope 11 is arranged on the protective box 7, the steel cable rope 11 can not be influenced to drive the movable pulley 6 to rotate, a bearing frame 801 is fixedly installed on the outer protective shell 8 at the outer side of the protective box 7 through bolts, limiting pulleys 5 are movably installed on two sides of the bearing frame 801 through the bolts through the movable frame 502, the movable frame 502 and the bearing frame 801 are movably installed through a first spring 501, a fixing ring 802 is fixedly installed at the top of the bearing frame 801 through bolts, the steel cable rope 11 is wound in a first fixed pulley 1, the steel cable rope 11 is fixedly connected with the fixing ring 802 through the limiting pulleys 5 and the movable pulley 6 and a second fixed pulley 3, the first fixed pulley 1 can be driven to rotate through external power, the movable pulley 6 can be driven to lift through the second fixed pulley 3, the steel cable rope 11 can be lifted by lifting materials in a labor-saving manner, the steel cable rope is convenient and practical, the limiting pulley 5 can be attached to the steel cable rope 11 through the first spring 501, the steel cable rope 11 can be supported, the steel cable rope 11 is not easy to wind during lifting, and the influence on material lifting is reduced;

bolt fixing base 901 fixed mounting is used to the bottom of outer protecting casing 8 has rotating assembly 9, rotating assembly 9 comprises pivot and carousel, rotating assembly 9's bottom is used the bolt to pass through sliding seat 902 movable mounting and is had lifting hook 10, can utilize rotating assembly 9 and sliding seat 902 to make lifting hook 10 when the hoist and mount material, can carry out multidirectional activity, reduce rocking that causes the pulley gear at lifting hook 10 top, stability has been improved, there is anticreep buckle 1002 one side of lifting hook 10 through loose axle movable mounting, through second spring 1001 movable mounting between anticreep buckle 1002 and the lifting hook 10, utilize second spring 1001 can make anticreep buckle 1002 card in the hook mouth department of lifting hook 10, the condition of unhook takes place for the rope that lifts by crane in the lifting hook 10, safety has been improved.

The working principle is as follows: when the pulley block for the bridge crane is used, the device is firstly arranged at a proper position of the hoisting frame, the device can be moved by moving the wheels 4, then the hoisting fixed rope is sleeved in the lifting hook 10, the rope can be prevented from unhooking through the anti-drop buckle 1002, the safety is improved, then the first fixed pulley 1 is driven to rotate by external power, so that the first fixed pulley 1 can drive the steel cable 11 to wind, the movable pulley 6 can be driven to ascend by matching with the second fixed pulley 3 through the contraction of the steel cable rope 11, thereby being capable of hoisting the materials more conveniently, being supported between the steel cable ropes 11 through the limiting pulley 5, preventing the steel cable ropes 11 from winding in the hoisting process, the influence on hoisting is effectively reduced, the convenience is improved, and a series of operations of the pulley block for the bridge crane are completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a pulley block for bridge crane, includes protecting crust (2), outer protecting crust (8) and lifting hook (10), its characterized in that: the utility model discloses a safety belt conveyor, including protective housing (2), the both sides fixed mounting of protective housing (2) has dead lever (201), the bottom fixed mounting of dead lever (201) has removal wheel (4), the inside movable mounting of protective housing (2) has first fixed pulley (1), the bottom fixed mounting of protective housing (2) has second fixed pulley (3), the bottom of second fixed pulley (3) has movable pulley (6) through outer protective housing (8) movable mounting, the top fixed mounting of outer protective housing (8) has protection box (7) that correspond with movable pulley (6), fixed mounting has accepting frame (801) on outer protective housing (8) in the protection box (7) outside, the both sides of accepting frame (801) all movable mounting have spacing pulley (5), the bottom of outer protective housing (8) has lifting hook (10) through rotating assembly (9) movable mounting.

2. The pulley block for a bridge crane according to claim 1, wherein: be equipped with on protecting crust (2) with first fixed pulley (1) complex first opening (202), through mount (402) fixed mounting between dead lever (201) and removal wheel (4), support fixedly through bracing piece (401) between mount (402) and dead lever (201).

3. The pulley block for a bridge crane according to claim 1, wherein: the second fixed pulley (3) and the protective shell (2) are fixedly installed through a pulley frame (301), the bearing frame (801) and the limiting pulley (5) are movably installed through a movable frame (502), and the movable frame (502) and the bearing frame (801) are movably installed through a first spring (501).

4. The pulley block for a bridge crane according to claim 1, wherein: the top fixed mounting who accepts frame (801) has solid fixed ring (802), around having cable rope (11) in first fixed pulley (1), cable rope (11) are walked around movable pulley (6) and second fixed pulley (3) and solid fixed ring (802) fixed connection through spacing pulley (5).

5. The pulley block for a bridge crane according to claim 1, wherein: the protective box (7) is provided with a second opening (701) matched with the steel cable rope (11), and the outer protective shell (8) and the rotating assembly (9) are fixedly installed through a fixed seat (901).

6. The pulley block for a bridge crane according to claim 1, wherein: through sliding seat (902) movable mounting between lifting hook (10) and rotating assembly (9), one side movable mounting of lifting hook (10) has anticreep buckle (1002), through second spring (1001) movable mounting between anticreep buckle (1002) and lifting hook (10).

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