CN203065052U

CN203065052U - Suspension arm of crane

Info

Publication number: CN203065052U
Application number: CN 201220610678
Authority: CN
Inventors: 杨斌
Original assignee: WUXI HUAXING MARINE EQUIPMENT CO Ltd
Current assignee: WUXI HUAXING MARINE EQUIPMENT CO Ltd
Priority date: 2012-11-16
Filing date: 2012-11-16
Publication date: 2013-07-17
Anticipated expiration: 2022-11-16

Abstract

The utility model discloses a suspension arm of a crane. The suspension arm of the crane comprises a suspension arm body; the suspension arm body comprises a head-part suspension arm, a middle suspension arm and a tail-part suspension arm; one end of the head-part suspension arm is provided with a pulley mechanism, and the other end of the head-part suspension arm is fixedly connected with one end of the middle suspension arm through a connecting device; the other end of the middle suspension arm is fixedly connected with one end of the tail-part suspension arm through a connecting device; the other end of the tail-part suspension arm is articulated to a suspension arm support; each of the head-part suspension arm, the middle suspension arm and the tail-part suspension arm is composed of four vertical rods arranged into a shape like Chinese character 'kou' and a plurality of reinforcing rods between adjacent vertical rods; and the vertical rods and the reinforcing rods are steel pipes of round structures so the wind resistance acting on the suspension arm of the crane is reduced greatly; and the head-part suspension arm, the middle suspension arm and the tail-part suspension arm are mutually connected through connecting devices, the connection is firm; and the structure is simple, and the suspension arm is easy to accomplish.

Description

A kind of arm of hoisting crane

Technical field

The utility model relates to a kind of arm, relates in particular to a kind of arm of hoisting crane.

Background technology

Hoisting crane belongs to a kind of of elevator machinery, be a kind ofly circulate, the machinery of intermittent moment.A working cycle comprises: load-engaging device is mentioned article from getting thing ground, is moved horizontally to the appointed place then and falls article, then carries out counter motion, makes the load-engaging device reposition, in order to circulate next time.Arm is as one of vitals of hoisting crane, and is essential.The complex structure of the arm that existing hoisting crane is used, and the vertical rod of arm and the stirrup between the vertical rod made by the square steel of square structure, and for deck crane, its existence is subjected to the big problem of air draught.

The utility model content

The purpose of this utility model is at the problems referred to above, and a kind of arm of hoisting crane is provided, and is made the problem that suffered air draught is big by the square steel of square structure with the arm that solves existing hoisting crane.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of arm of hoisting crane, comprise the arm body, described arm body comprises first section arm, stage casing arm and rear arm, one end of described first section arm is equipped with pulley mechanism, its other end is captiveed joint with an end of stage casing arm by connecting device, the other end of described stage casing arm is captiveed joint with an end of rear arm by connecting device, the other end of described rear arm is hinged on the arm bearing, described first section arm, the stage casing arm, the rear arm constitutes by four a plurality of stirrups that are the vertical rod of hollow distribution and are arranged between the adjacent vertical rod, and described vertical rod and stirrup are the steel pipe of circular configuration.

Further, described vertical rod and stirrup are welded to connect.

Further, described connecting device comprises first contiguous block and second contiguous block, has draw-in groove on described first contiguous block, and described second contiguous block is provided with the projection that matches with draw-in groove, and first contiguous block and second contiguous block are fixed by locating dowel pin.

The beneficial effects of the utility model are, the vertical rod of the arm of described hoisting crane and stirrup all adopt the steel pipe of circular configuration, make the resistance of its wind-engaging reduce greatly, and first section arm, stage casing arm and rear arm interconnect by connecting device, be connected firmly, simple in structure, be easy to realize.

Description of drawings

Fig. 1 is the front view of the arm of a kind of hoisting crane of the utility model;

Fig. 2 is the birds-eye view of the arm of a kind of hoisting crane of the utility model;

Fig. 3 is that Fig. 2 is at the enlarged drawing at A place.

Among the figure:

1, first section arm; 2, stage casing arm; 3, rear arm; 4, pulley mechanism; 5, stirrup; 6, vertical rod; 7, arm bearing; 8, connecting device; 9, first contiguous block; 10, projection; 11, locating dowel pin; 12, second contiguous block; 13, draw-in groove.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.

Please refer to Figure 1 and Figure 2, Fig. 1 is the front view of the arm of a kind of hoisting crane of the utility model; Fig. 2 is the birds-eye view of the arm of a kind of hoisting crane of the utility model.In present embodiment, a kind of arm of hoisting crane, comprise the arm body, described arm body comprises first section arm 1, stage casing arm 2 and rear arm 3, one end of described first section arm 1 is equipped with pulley mechanism 4, its other end is captiveed joint with an end of stage casing arm 2 by connecting device 8, the other end of described stage casing arm 2 is captiveed joint with an end of rear arm 3 by connecting device 8, the other end of described rear arm 3 is hinged on the arm bearing 7, described first section arm 1, stage casing arm 2, rear arm 3 constitutes by four a plurality of stirrups 5 that are the vertical rod 6 of hollow distribution and are arranged between the adjacent vertical rod 6, described vertical rod 6 is welded to connect with stirrup 5, and vertical rod 6 and stirrup 5 are the steel pipe of circular configuration.

Please refer to shown in Figure 3, be the enlarged drawing of Fig. 2 at the A place, it is the structural representation of connecting device, described connecting device comprises first contiguous block 9 and second contiguous block 12, have draw-in groove 13 on described first contiguous block 9, described second contiguous block 12 is provided with the projection 10 that matches with draw-in groove 13, and first contiguous block 9 and second contiguous block 12 are fixing by locating dowel pin 11.

Vertical rod 6 of the present utility model and stirrup 5 all adopt the steel pipe of circular configuration, make the resistance of its wind-engaging reduce greatly, and be simple in structure, be easy to realize.

Above embodiment has just set forth groundwork of the present utility model and characteristic; the utility model is not limited by above-described embodiment; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. the arm of a hoisting crane, comprise the arm body, it is characterized in that: described arm body comprises first section arm, stage casing arm and rear arm, one end of described first section arm is equipped with pulley mechanism, its other end is captiveed joint with an end of stage casing arm by connecting device, the other end of described stage casing arm is captiveed joint with an end of rear arm by connecting device, the other end of described rear arm is hinged on the arm bearing, described first section arm, the stage casing arm, the rear arm constitutes by four a plurality of stirrups that are the vertical rod of hollow distribution and are arranged between the adjacent vertical rod, and described vertical rod and stirrup are the steel pipe of circular configuration.

2. the arm of a kind of hoisting crane according to claim 1, it is characterized in that: described vertical rod and stirrup are welded to connect.

3. the arm of a kind of hoisting crane according to claim 1, it is characterized in that: described connecting device comprises first contiguous block and second contiguous block, have draw-in groove on described first contiguous block, described second contiguous block is provided with the projection that matches with draw-in groove, and first contiguous block and second contiguous block are fixed by locating dowel pin.