CN202322113U

CN202322113U - Hand-held type cantilever frame of crane

Info

Publication number: CN202322113U
Application number: CN2011203282961U
Authority: CN
Inventors: 王本路; 杨路; 梁兆义
Original assignee: ANHUI XINGMA AUTOMOBILE Co Ltd
Current assignee: ANHUI XINGMA AUTOMOBILE Co Ltd
Priority date: 2011-09-03
Filing date: 2011-09-03
Publication date: 2012-07-11
Anticipated expiration: 2021-09-03

Abstract

The utility model relates to a hand-held type cantilever frame of a crane, which belongs to cranes and is characterized in an inner cantilever is inserted in an inner cavity of an outer cantilever in clearance fit mode, the inner cantilever is of a box-shaped structure, the right end portion of the inner cantilever is provided with a lifting lug board, a rod-shaped handle is installed on the right end portion of the inner cantilever, a sliding block is fixedly installed on the bottom board of the right end section of the inner cavity of the outer cantilever, screw holes are respectively and symmetrically arranged on the right end sections of the front lateral wall and the rear lateral wall of the outer cantilever, and adjusting screw plugs are correspondingly arranged in spinning mode. Pin shaft holes I are respectively and symmetrically arranged on the front lateral wall and the rear lateral wall of the right end portion of the outer cantilever, front pin shaft holes II and rear pin shaft holes II are symmetrically arranged on the front lateral cantilever and the rear lateral cantilever of the right end section of the inner cantilever, front pin shaft holes III and rear pin shaft holes III are correspondingly arranged on the left section of the inner cantilever at intervals, and when the inner cantilever extends outwards, connection pin shafts can be connected in any one of the pin shaft holes III and the pin shaft holes of the outer cantilever in penetrating mode for limiting so as to adjust the extending length of the inner cantilever as required. The hand-held type cantilever frame is simple in structure, fast and convenient to operate and capable of enlarging working range of the crane and a lorry-mounted crane.

Description

The pull-type jib of craneman

Technical field

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

Background technology

Hoisting crane and lorry-mounted crane in work because supporting leg is fixed, and car load can't move in the working process, sometimes when the far away slightly and jib of goods distance can't stretch out again, just must mobile car load, waste time and energy, influence the work efficiency of hoisting crane.

Summary of the invention

The purpose of the utility model is to propose the pull-type jib of a kind of craneman, and is not only simple in structure, simple operation, and can improve the scope of work of hoisting crane and lorry-mounted crane, improve the work efficiency of hoisting crane.

The purpose of the utility model is that realization is like this: the pull-type jib of a kind of craneman, comprise outer arm, and one of top (right-hand member) joint box type construction and right part had the cantilever of shackle plate when this outer arm stretched for the crane arm total length; It is characterized in that: in the inner chamber of this outer arm, be free-running fit ground plug-in mounting inner arm, this inner arm is also for box type construction and right part have shackle plate, and the length of this inner arm is less than or equal to the length of outer arm; The rod handle is installed in right part at inner arm; As required inner arm pulled out or to withdraw, on the base plate of outer arm inner chamber right-hand member section, slide block is installed with bolt, this slide block can be processed with nylon; Friction when reducing inside and outside arm relative motion and adjust the upper gap between the inside and outside arm; The right-hand member section of sidewall middle part is offered screw and corresponding spinning adjuster plug symmetrically respectively in the front and back of outer arm simultaneously, and with the front and back sideshake between adjustment inner arm and the outer arm, the upper gap between this inner arm and the outer arm can be 2-3mm; Left and right sides sideshake can be monolateral 1.5-2mm; To guarantee normal flexible between inner arm and the outer arm, in addition, on the front and back sidewall of the right part of outer arm, offer the pin shaft hole I symmetrically respectively; And make the line of centres of rear pin shaft hole I before this horizontal; Pin shaft hole II before and after also offering symmetrically on the front and back side arm of the right-hand member section of inner arm, and make pin shaft hole II before and after each on the inside and outside arm, I when inner arm shrinks when putting in place can corresponding perforation, installing the connection bearing pin in rear pin shaft hole I, the II before this; Make inner arm shrink the back fixed limit; And before and after the compartment of terrain correspondence is offered on the left side section of inner arm the pin shaft hole III, when inner arm is overhanging, can in the pin shaft hole I on arbitrary pin shaft hole III and the outer arm, install and be connected bearing pin, to adjust the extension elongation of inner arm as required with spacing.

Inner arm is in contraction state when the hoisting crane normal operation; And with connecting spacing fixing its position of bearing pin; When needs stretch out inner arm, just will connect bearing pin takes down; When the inner arm manpower is pulled out the length of moving needs to, in cooresponding pin shaft hole I, III, insert the connection bearing pin, this hand pulling type jib is used for the pulling of distance goods far away and pulls.

The pull-type jib of the craneman that the utility model proposed, simple in structure, simple operation can improve the scope of work of hoisting crane and lorry-mounted crane, can when inner arm shrinks, guarantee the work of car load again.

Combine accompanying drawing and embodiment that the pull-type jib of the craneman that the utility model proposed is done further to describe at present.

Description of drawings

Master when Fig. 1 is the pull-type jib contraction state of the craneman that proposes of the utility model looks scheme drawing.

Fig. 2 is that the pull-type jib of craneman that the utility model the proposes master when stretching out state looks scheme drawing.

Among Fig. 1, Fig. 2: 1, outer arm 2 inner arms 3, connect bearing pin 4, slide block 5, adjuster plug 6, handle.

The specific embodiment

From Fig. 1, Fig. 2, can find out: the pull-type jib of a kind of craneman, comprise outer arm 1, one of top (right-hand member) joint box type construction and right part had the cantilever of shackle plate when this outer arm 1 stretched for the crane arm total length; It is characterized in that: in the inner chamber of this outer arm 1, be free-running fit ground plug-in mounting inner arm 2, this inner arm 2 is also for box type construction and right part have shackle plate, and the length of this inner arm 2 is less than or equal to the length of outer arm 1; Rod handle 6 is installed in right part at inner arm 2; As required inner arm 2 pulled out or to withdraw, on the base plate of outer arm 1 inner chamber right-hand member section, slide block 4 is installed with bolt, this slide block 4 can be processed with nylon; Friction when reducing inside and outside arm 2,1 relative motion and adjust inside and outside arm 2, the upper gap between 1; The right-hand member section of sidewall middle part is offered screw and corresponding spinning adjuster plug 5 symmetrically respectively in the front and back of outer arm 1 simultaneously, and with the front and back sideshake between adjustment inner arm 2 and the outer arm 1, the upper gap between this inner arm 2 and the outer arm 1 can be 2-3mm; Left and right sides sideshake can be monolateral 1.5-2mm; To guarantee normally stretching between inner arm 2 and the outer arm 1, in addition, on the front and back sidewall of the right part of outer arm 1, offer the pin shaft hole I symmetrically respectively; And make the line of centres of rear pin shaft hole I before this horizontal; Pin shaft hole II before and after also offering symmetrically on the front and back side arm of the right-hand member section of inner arm 2, and pin shaft hole II before and after each on the inside and outside arm 2,1, I can correspondingly be connected when inner arm 2 shrinks when putting in place, installing connection bearing pin 3 in rear pin shaft hole I, the II before this; Make inner arm 2 shrink the back fixed limit; And before and after the compartment of terrain correspondence is offered on the left side section of inner arm 2 the pin shaft hole III, when inner arm 2 is overhanging, can in the pin shaft hole I on arbitrary pin shaft hole III and the outer arm 1, install and be connected bearing pin 3, to adjust the extension elongation of inner arm 2 as required with spacing.

Inner arm 2 is in contraction state when the hoisting crane normal operation; And with connecting bearing pin 3 spacing fixing its positions; When needs stretch out inner arm 2, just will connect bearing pin 3 takes down; When inner arm 2 manpowers are pulled out the length of moving needs to, in cooresponding pin shaft hole I, III, insert connection bearing pin 3, this hand pulling type jib is used for the pulling of distance goods far away and pulls.

Claims

1. pull-type jib of craneman; Comprise outer arm (1); It is characterized in that: in the inner chamber of this outer arm (1), be free-running fit ground plug-in mounting inner arm (2); This inner arm (2) is for box type construction and right part have shackle plate, and the length of this inner arm (2) is less than or equal to the length of outer arm (1), in the right part of inner arm (2) rod handle (6) is installed; On the base plate of outer arm 1 inner chamber right-hand member section, slide block (4) is installed with bolt; Simultaneously offer screw and corresponding spinning adjuster plug (5) symmetrically respectively, in addition, on the front and back sidewall of the right part of outer arm (1), offer the pin shaft hole I symmetrically respectively at the right-hand member section middle part of the front and back sidewall of outer arm (1); And make the line of centres of rear pin shaft hole I before this horizontal; Pin shaft hole II before and after also offering symmetrically on the front and back sidewall of the right-hand member section of inner arm (2), and make pin shaft hole II before and after each on the inside and outside arm (2,1), I when inner arm (2) shrinks when putting in place corresponding the perforation, installing connection bearing pin (3) in rear pin shaft hole I, the II before this; And the left side section of inner arm (2) go up a compartment of terrain correspondence offer before and after the pin shaft hole III, when inner arm (2) is overhanging, in the pin shaft hole I on pin shaft hole III and the outer arm (1), install and be connected bearing pin (3) with spacing.

2. the pull-type jib of craneman according to claim 1 is characterized in that this slide block (4) processes with nylon.

3. the pull-type jib of craneman according to claim 1 is characterized in that the upper gap between this inner arm (2) and the outer arm (1) is 2-3mm, and left and right sides sideshake is monolateral 1.5-2mm.