CN212151406U - Light folding cantilever crane - Google Patents

Abstract

A light folding cantilever crane comprises a stand column, a traveling mechanism, a main arm, an auxiliary arm, a traction mechanism and a hook mechanism; the upright post is arranged on the top surface of the travelling mechanism; the top end of the upright post is correspondingly and vertically connected with the head end of the main arm, an inclined support is arranged between the bottom surface of the arm body of the main arm and the upright post, the tail end of the main arm is correspondingly hinged with the head end of the auxiliary arm through a hinged shaft, and the top surface of the main arm is provided with a traction mechanism; the traction mechanism comprises an electric hoist, a guide pulley and a fixed pulley, the fixed pulley is installed at the tail end of the auxiliary arm, the guide pulley is installed on the top end line of the hinged shaft, the electric hoist is installed on the top surface of the head end of the main arm, and a steel wire rope of the electric hoist is correspondingly connected with the hook mechanism after sequentially passing through the guide pulley and the fixed pulley; the device is a crane which occupies small space, has high working efficiency and can improve the utilization rate.

Description

Light folding cantilever crane

Technical Field

The utility model belongs to the technical field of the hoist technique and specifically relates to a light-duty foldable cantilever crane is related to.

Background

It is known that a light cantilever crane is a common lifting mechanism, which can be used to lift some objects with larger volume or heavier weight, the traditional light cantilever crane is composed of a main arm, an upright post and an electric hoist, the upright post is generally and directly fixed on the ground during installation, an inclined supporting structure is arranged between the main arm and the upright post, the electric hoist is slidably installed on the main arm through a rail, although the light cantilever crane can stably lift the object and can move the object by moving the electric hoist, on one hand, because the installation position of the crane is fixed, the crane can only serve a certain annular area, and for the area outside the operation coverage area, the crane can not be used, only new equipment can be added, the problems of crane utilization rate and equipment investment waste occur, on the other hand, because the main arm is of an integral structure, the crane occupies a large space and wastes a serious action space, and the crane can finish six operations in six steps of lifting and descending of the hoist, left and right operation of the hoist and forward and backward rotation of the crane during one period of carrying articles, so that the working efficiency of the crane is low;

chinese patent (CN 201524164153.5) discloses a folding arm crane, wherein the swing arm of the crane can be folded to enlarge the working range of the crane, but the crane is directly fixed on the ground, so the working range of the crane is fixed, and the utilization rate of the crane is low; therefore, in summary, there is a need in the market for a crane that occupies a small space, has high working efficiency, and can improve the utilization rate.

Disclosure of Invention

In order to overcome the deficiency in the background art, the utility model discloses a light-duty foldable cantilever crane.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a light folding cantilever crane comprises an upright post, a traveling mechanism capable of moving on the ground, a main arm, an auxiliary arm, a traction mechanism and a hook mechanism; the bottom end of the upright post is arranged on the top surface of the traveling mechanism, the top end of the upright post is correspondingly and vertically connected with the head end of the main arm, an inclined support is arranged between the bottom surface of the arm body of the main arm and the upright post, the tail end of the main arm is correspondingly hinged with the head end of the auxiliary arm through a hinged shaft, the hinged shaft is vertical to the top surface of the main arm, and the top surface of the main arm is provided with a traction mechanism; the traction mechanism comprises an electric hoist, a guide pulley and a fixed pulley, the fixed pulley is arranged at the tail end of the auxiliary arm, the wheel disc surface of the fixed pulley is perpendicular to the top surface of the auxiliary arm, the guide pulley is arranged at the top end of the hinged shaft, the wheel disc surface of the guide pulley is perpendicular to the axis of the hinged shaft, the electric hoist is arranged at the top surface of the head end of the main arm, and a steel wire rope of the electric hoist is correspondingly connected with the hook mechanism after sequentially passing through the guide pulley and the fixed pulley;

preferably, the walking mechanism comprises a chassis, directional wheels and universal wheels; the top surface of the chassis is correspondingly and fixedly connected with the upright post, one end of the bottom surface of the chassis is provided with a pair of directional wheels, and the other end of the bottom surface of the chassis is provided with a pair of universal wheels;

preferably, two end faces of the chassis are respectively provided with a handrail;

preferably, the inclined support is of a right-angle trapezoidal structure, the longer end of the bottom edge of the inclined support is fixedly mounted on the bottom surface of the main arm, the shorter end of the bottom edge of the inclined support is provided with a roller, and the outer edge surface of the roller is correspondingly attached to the side surface of the upright post;

preferably, couple mechanism contains brake valve lever, lifting hook and spring cable, and brake valve lever's top corresponds with wire rope and is connected, and brake valve lever's bottom corresponds with the lifting hook and is connected, and is equipped with the spring cable between brake valve lever's top and the tail end of auxiliary arm, and the signal input part of this spring cable corresponds the electricity with brake valve lever and is connected, and the signal output part of spring cable corresponds the electricity with electronic calabash and is connected.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a light folding cantilever crane, which can drive the whole crane to move through a traveling mechanism, thereby increasing the working range of the crane and further improving the utilization rate of the crane; the main arm can rotate along the upright post, and the auxiliary arm can also rotate along the articulated shaft, so that the operation space of the crane is increased, and when the crane does not work, the main arm can be attached to the auxiliary arm by rotating the auxiliary arm, so that the size of the crane is reduced; can enough control the lift of couple through drive mechanism, can also provide the tensile force for the fly jib when the fly jib rotates, avoid the fly jib in disorder swing.

Drawings

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

FIG. 2 is a schematic view of the working state of the present invention;

fig. 3 is a schematic structural view of a conventional crane.

In the figure: 1. a column; 2. a traveling mechanism; 2.1, a chassis; 2.2, an orientation wheel; 2.3, universal wheels; 2.4, handrails; 3. a main arm; 4. obliquely supporting; 4.1, rollers; 5. hinging a shaft; 6. an auxiliary arm; 7. a traction mechanism; 7.1, a fixed pulley; 7.2, a guide pulley; 7.3, an electric hoist; 7.3.1, steel wire ropes; 8. a hooking mechanism; 8.1, a control handle; 8.2, a lifting hook; 8.3, spring cable.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

The light folding type cantilever crane described with reference to fig. 1-3 comprises an upright post 1, a traveling mechanism 2 capable of moving on the ground, a main arm 3, an auxiliary arm 6, a traction mechanism 7 and a hook mechanism 8; the bottom end of the upright post 1 is arranged on the top surface of the travelling mechanism 2, and the travelling mechanism 2 comprises a chassis 2.1, a directional wheel 2.2 and a universal wheel 2.3 according to requirements; the top surface of the chassis 2.1 is fixedly connected with the upright post 1 correspondingly, one end of the bottom surface of the chassis 2.1 is provided with a pair of directional wheels 2.2, the other end of the bottom surface of the chassis 2.1 is provided with a pair of universal wheels 2.3, the crane can move to different operation areas to work through the travelling mechanism 2, so that the utilization rate of the crane is improved, wherein the universal wheels 2.3 can enable the crane to turn, when the crane reaches a specified working place, the universal wheels 2.3 and the directional wheels 2.2 are adjusted to be in a braking state, so that the normal operation of the crane can be realized, particularly, two end surfaces of the chassis 2.1 are respectively provided with a handrail 2.4, and a worker can push the crane to move by pushing the handrail 2.4; the top end of the upright post 1 is correspondingly and vertically connected with the head end of the main arm 3, the main arm 3 can rotate along the upright post 1, an inclined support 4 is arranged between the bottom surface of the arm body of the main arm 3 and the upright post 1, the inclined support 4 can provide supporting force for the main arm 3, in addition, the inclined support 4 is of a right-angle trapezoidal structure, the longer bottom edge end of the inclined support 4 is fixedly arranged on the bottom surface of the main arm 3, the shorter bottom edge end of the inclined support 4 is provided with a roller 4.1, the outer edge surface of the roller 4.1 is correspondingly attached to the side surface of the upright post 1, and the roller 4.1 can enable the inclined support 4 to rotate along with the main arm 3;

the tail end of the main arm 3 is correspondingly hinged with the head end of the auxiliary arm 6 through a hinged shaft 5, the hinged shaft 5 is perpendicular to the top surface of the main arm 3, the top surface of the main arm 3 is provided with a traction mechanism 7, the operation space of the crane is further increased through the matched rotation between the main arm 3 and the auxiliary arm 6, and the size of the crane can be reduced after the auxiliary arm 6 is rotated to be attached to the main arm 3, so that the crane can be conveniently placed after being stopped; the traction mechanism 7 comprises an electric hoist 7.3, a guide pulley 7.2 and a fixed pulley 7.1, the fixed pulley 7.1 is arranged at the tail end of the auxiliary arm 6, the wheel disc surface of the fixed pulley 7.1 is perpendicular to the top surface of the auxiliary arm 6, the guide pulley 7.2 is arranged at the top end of the articulated shaft 5, the wheel disc surface of the guide pulley 7.2 is perpendicular to the axis of the articulated shaft 5, the electric hoist 7.3 is arranged at the top surface of the head end of the main arm 3, and the steel wire rope 7.3.1 of the electric hoist 7.3 sequentially passes through the guide pulley 7.2 and the fixed pulley 7.1 and then is correspondingly connected with the hook mechanism 8, the traction mechanism 7 can control the lifting of the hook 8.2 and can also provide the tension for the auxiliary arm 6 when the auxiliary arm 6 rotates, so as to avoid the disordered swinging of the auxiliary arm 6, the hook mechanism 8 comprises a control handle 8.1, a hook 8.2 and a spring cable 8.3, the top end of the control handle 8.1 is correspondingly connected with the steel wire rope 7.3.1, and the bottom end of the, and a spring cable 8.3 is arranged between the top end of the control handle 8.1 and the tail end of the auxiliary arm 6, a signal input end of the spring cable 8.3 is correspondingly and electrically connected with the control handle 8.1, a signal output end of the spring cable 8.3 is correspondingly and electrically connected with the electric hoist 7.3, and the height of the light crane is low, so that the control handle 8.1 is positioned in an operation interval of a worker, and the spring cable 8.3 has an elastic telescopic function, so that the spring cable 8.3 can be stretched in the descending process of the lifting hook 8.2, the control handle 8.1 can still transmit signals to the electric hoist 7.3, the ascending and descending actions of the lifting hook 8.2 cannot be influenced, and the control handle 8.1 can control the forward transmission or reverse rotation of a motor in the electric hoist 7.3, so that the steel wire rope 7.3.1 drives the lifting hook 8.2 to descend or ascend.

Implement a light-duty foldable cantilever crane during, at first control running gear 2 and let the hoist remove work area, then with the rigidity of hoist, next descend through control electric block 7.3 drive couple mechanism 8, under the common cooperation of main arm 3 and fly jib 6, the workman can remove couple mechanism 8 and formulate goods department, restart electric block 7.3 at last pulls back the goods to main arm 3 and fly jib 6 hang the goods to the assigned place.

The part of the utility model not detailed is prior art.

Claims (5)

1. A light folding cantilever crane is characterized in that: comprises an upright post (1), a traveling mechanism (2) capable of moving on the ground, a main arm (3), an auxiliary arm (6), a traction mechanism (7) and a hook mechanism (8); the bottom end of the upright post (1) is arranged on the top surface of the traveling mechanism (2), the top end of the upright post (1) is correspondingly and vertically connected with the head end of the main arm (3), an inclined support (4) is arranged between the bottom surface of the arm body of the main arm (3) and the upright post (1), the tail end of the main arm (3) is correspondingly hinged with the head end of the auxiliary arm (6) through a hinged shaft (5), the hinged shaft (5) is vertical to the top surface of the main arm (3), and the top surface of the main arm (3) is provided with a traction mechanism (7); draw gear (7) contain fixed pulley (7.1), guide pulley (7.2) and electric block (7.3), the tail end at fly jib (6) is installed in fixed pulley (7.1), and the top face of the rim plate face perpendicular to fly jib (6) of fixed pulley (7.1), the top at articulated shaft (5) is installed in guide pulley (7.2), and the axis of the rim plate face perpendicular to articulated shaft (5) of guide pulley, the top face at main arm (3) head end is installed in electric block (7.3), and corresponds with couple mechanism (8) behind guide pulley (7.2) and fixed pulley (7.1) in proper order wire rope (7.3.1) of electric block (7.3).

2. A lightweight folding cantilever crane as claimed in claim 1, wherein: the travelling mechanism (2) comprises a chassis (2.1), a directional wheel (2.2) and a universal wheel (2.3); the top surface of the chassis (2.1) is correspondingly and fixedly connected with the upright post (1), one end of the bottom surface of the chassis (2.1) is provided with a pair of directional wheels (2.2), and the other end of the bottom surface of the chassis (2.1) is provided with a pair of universal wheels (2.3).

3. A lightweight folding cantilever crane as claimed in claim 2, wherein: two end faces of the chassis (2.1) are respectively provided with a handrail (2.4).

4. A lightweight folding cantilever crane as claimed in claim 1, wherein: the inclined strut (4) is of a right-angle trapezoidal structure, the longer end of the bottom edge of the inclined strut (4) is fixedly mounted on the bottom surface of the main arm (3), the shorter end of the bottom edge of the inclined strut (4) is provided with a roller (4.1), and the outer edge surface of the roller (4.1) is correspondingly attached to the side surface of the upright post (1).

5. A lightweight folding cantilever crane as claimed in claim 1, wherein: couple mechanism (8) contain brake valve lever (8.1), lifting hook (8.2) and spring cable (8.3), the top and wire rope (7.3.1) of brake valve lever (8.1) correspond and are connected, the bottom and lifting hook (8.2) of brake valve lever (8.1) correspond and are connected, and be equipped with spring cable (8.3) between the top of brake valve lever (8.1) and the tail end of auxiliary arm (6), the signal input part of this spring cable (8.3) corresponds the electricity with brake valve lever (8.1) and is connected, the signal output part and the electric block (7.3) of spring cable (8.3) correspond the electricity and are connected.

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