CN101392540B

CN101392540B - Fixed device for dredger lifting rope end and lifting reel

Info

Publication number: CN101392540B
Application number: CN200810079515XA
Authority: CN
Inventors: 仝雷强; 李洪; 李晋桓; 李光; 毛瑞; 王文斌
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2008-09-28
Filing date: 2008-09-28
Publication date: 2011-02-09
Anticipated expiration: 2028-09-28
Also published as: CN101392540A

Abstract

The invention provides a device for fixing lifting rope ends and lifting reels of excavators, which relates to a lifting mechanism of a mechanical excavator. The prior art adopts a drill key and utilizes the inclined plane of the drill key to compress the end of a lifting rope in a reel, and the structure has the disadvantages of difficult processing and manufacturing and troublesome field operation. The device fixedly connects the end of a lifting rope with an extrusion rope sling; the edge of a flange of a lifting reel is cut to form a right-angle nick; a sleeve chuck is welded on the right-angle nick; the bottom of an inner cavity of the sleeve chuck is provided with a lug boss and matched with the extrusion rope sling; the sleeve chuck is provided with a nick where a lifting wire rope can pass along the longitudinal direction; and the front end of the sleeve chuck is provided with a bolt preventing the extrusion rope sling from moving forward along the side surface. The device has the advantages of simple manufacturing process, convenient field replacement operation and the like, can guarantee the lifting force of the lifting rope, and improves the bonding strength of the rope end and the rope sling at the same time.

Description

The fastening devices of hoisting rope of excavator head and hoisting drum

Technical field

The present invention relates to the hoisting mechanism of mechanical type excavator, particularly the fastening devices of a kind of fag end of hoisting rope of excavator and hoisting drum.

Background technology

Hoisting rope of excavator is a consumable accessory, needs often to change.The fastening devices of hoisting rope fag end and hoisting drum in the existing excavator is to adopt drift to utilize its inclined-plane that fag end is pressed in the reel, and the shortcoming of this structure is: 1, processing and fabricating difficulty.Because socket and drift are pressed in the reel, not only cause reel casting die complex structure, to make difficulty, and make whole reel weight unbalanced, each replacing needs suitably to increase balancing weight and does dynamic balance running, has increased the difficulty of making.2, execute-in-place trouble.Boom hoist cable needs often to change, and must get hyposphene from the small end in reel rope wedge hole during replacing, takes out and goes up wedge, and is time-consuming; And drift is heavier, needs special lifting tool just can carry out the dismounting of drift, and operation is trouble very.

Summary of the invention

Purpose of the present invention is intended to overcome the shortcoming of prior art, and the fastening devices of a kind of hoisting rope of excavator head and hoisting drum is provided, and it is simple that it has manufacture craft, advantages such as convenient field replacement operation.This device can guarantee the lifting force of hoisting rope, has improved the bond strength of fag end and rope sling simultaneously again.

The present invention is achieved through the following technical solutions:

The fastening devices of a kind of hoisting rope of excavator head and hoisting drum, comprise: the boom hoist cable that is connected with hoisting drum, it is characterized in that: the fag end of described boom hoist cable is affixed with the extruding rope sling, the flange periphery of described hoisting drum cuts a right angle gap, weld cutting ferrule on the right angle gap, the intracavity bottom of cutting ferrule is provided with boss, and with the extruding rope sling cooperate, cutting ferrule longitudinally has the gap that boom hoist cable can pass through, and is provided with the bolt that stops the reach of extruding rope sling in the front end edge side of cutting ferrule.

Described extruding rope sling is steel, aluminum compound structure, and the internal layer that contacts with boom hoist cable is an aluminum pipe, and the aluminum pipe outside is a steel pipe.

Also be connected with the traction becket bridle in the described extruding rope sling.

The present invention has the following advantages compared with the prior art:

1. manufacture craft is simple, has reduced cost of production;

2. boom hoist cable fag end and rope sling are taked monolithic extruded molding structure, have both guaranteed the lifting force of hoisting rope, have improved the bond strength of fag end and rope sling simultaneously;

3. changing hoisting rope only needs end is taken out from the cutting ferrule opening position, and changing tights a bolt behind the new rope gets final product.On-the-spot change simple to operately, save time, laborsaving; Do not need extra professional tool, the saving fund.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the structural representation of combined type extruding rope sling;

Fig. 4 is the installation site figure that is fastened on the reel flange.

The present invention is further illustrated by preferred embodiment below in conjunction with accompanying drawing.

The specific embodiment

Shown in Fig. 1,2,3,4, the fastening devices of a kind of hoisting rope of excavator head and hoisting drum comprises: the boom hoist cable 2 that is connected with hoisting drum 1, and the fag end of described boom hoist cable 2 is affixed with extruding rope sling 4; The flange periphery of described hoisting drum 1 cuts a right angle gap, welding cutting ferrule 3 on the right angle gap, and the intracavity bottom of cutting ferrule 3 is provided with boss 3-1, and with the extruding rope sling 4 cooperate, can block end by boss, when promoting, provide very big pulling force, prevent that end is drawn out; Cutting ferrule 3 longitudinally has the gap 3-2 that boom hoist cable 2 can pass through, and can directly take out from gap when changing hoisting rope; Be provided with the bolt 6 that stops 4 reaches of extruding rope sling in the front end edge side of cutting ferrule 3.

Described extruding rope sling 4 is steel, aluminum compound structure, and the internal layer that contacts with boom hoist cable 2 is aluminum pipe 4-1, and the aluminum pipe outside is steel pipe 4-2.The plasticity of aluminum pipe of both can having utilized this composite construction improves the binding ability with wire rope, and the rigidity that can bring into play steel pipe again guarantees the requirement of strength that rope sling uses.

Also be connected with traction becket bridle 5 in the described extruding rope sling 4, make things convenient for the mounting or dismounting of hoisting rope.

Claims

1. the fastening devices of hoisting rope of excavator head and hoisting drum, comprise: the boom hoist cable (2) that is connected with hoisting drum (1), it is characterized in that: the fag end of described boom hoist cable (2) is affixed with extruding rope sling (4), the flange periphery of described hoisting drum (1) cuts a right angle gap, weld cutting ferrule (3) on the right angle gap, the intracavity bottom of cutting ferrule (3) is provided with boss (3-1), and with the extruding rope sling (4) cooperate, cutting ferrule (3) longitudinally has the gap (3-2) that boom hoist cable (2) can pass through, and is provided with the bolt (6) that stops extruding rope sling (4) reach in the front end edge side of cutting ferrule (3).

2. according to the fastening devices of described hoisting rope of excavator head of claim 1 and hoisting drum, it is characterized in that: described extruding rope sling (4) is steel, aluminum compound structure, the internal layer that contacts with boom hoist cable (2) is aluminum pipe (4-1), and the aluminum pipe outside is steel pipe (4-2).

3. according to the fastening devices of described hoisting rope of excavator head of claim 1 and hoisting drum, it is characterized in that: also be connected with traction becket bridle (5) in the described extruding rope sling (4).