Folding arm crane

Abstract

The utility model relates to a folding arm crane. Comprising a stand column, a driving piece arranged on the stand column, a first supporting arm arranged at the acting end of the driving piece, a second supporting arm arranged on the first supporting arm, a measuring piece for measuring the rotating angle of the second supporting arm, a hoisting device for hoisting a workpiece and a pulling piece for driving the hoisting device to move up and down. The pulling piece is arranged on the first supporting arm; the end face of the pulling piece is connected with the hoisting device. The measuring piece is arranged at the hinged position between the first supporting arm and the second supporting arm. The problems that an ordinary supporting arm can only place objects on the round edge with the stand column as the round and the supporting arm as the radius and is difficult to adapt to the placing position are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of folding arm crane, especially relates to a folding arm crane. BACKGROUND

[0002] In the prior art, hoisting operation is an industrial process of transporting goods from one place to another. Most hoisting machines start vertical or vertical and horizontal work travel after taking goods with a lifting appliance, unload at the destination, and then empty the travel to the taking place to complete a work cycle, and then carry out the second hoisting. In some light and small material handling, warehousing logistics, production assembly and fine processing fields, light and small hoisting equipment is generally used.

[0003] Light and small hoisting equipment is generally driven by manpower, that is, the handle of the manually driven equipment rotates the boom of the crane in the horizontal direction to move the goods to another place. In the existing light and small hoisting equipment, the brake is generally located at one end of the boom connected with the column, at which time the goods need to be discharged in multiple positions, but the ordinary boom can only place the objects in a circular edge with the column as the radius of the circular boom, which is difficult to adapt to the placement position. SUMMARY

[0004] The embodiment of the application provides a folding arm crane, which solves the problem that the ordinary boom in the prior art can only place the objects in a circular edge with the column as the radius of the circular boom, which is difficult to adapt to the placement position.

[0005] The technical scheme adopted by the embodiment of the application is as follows.

[0006] A folding arm crane comprises a column, a driving member arranged on the column, a first support arm arranged at the acting end of the driving member, a second support arm arranged on the first support arm, a measuring member for measuring the rotation angle of the second support arm, a hoisting device for hoisting a workpiece, and a pulling member for driving the hoisting device to move up and down; the pulling member is arranged on the first support arm; the end surface of the pulling member is connected with the hoisting device; and the measuring member is arranged at the hinge between the first support arm and the second support arm.

[0007] As a further improvement of the above technical scheme, the first support arm is provided with a support plate; the support plate has two groups of mirror images; the support plate is provided with a rotating rod; the rotating rod corresponds to the second support arm; the rotating rod is provided with a disc; and the measuring member corresponds to the disc.

[0008] As a further improvement of the above technical solution: the rotating rod is provided with a first plate; the first plate is rotatably connected with a first roller; the first roller is oppositely provided with two groups; the first plate is perpendicular to the second support arm; the second support arm is provided with a second roller on the corresponding end surface of the hoisting device; the rope on the pulling member passes between the two groups of first rollers and is wound on the second roller until connected to the hoisting device.

[0009] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0010] 1. The driving member is arranged on the stand column to assist the rotation of the first support arm, the acting end of the driving member is provided with the first support arm, one side of the first support arm is provided with the pulling member, the other side of the first support arm is provided with the support plate, the support plate is oppositely arranged in two groups up and down, the support plate is rotatably connected with the rotating rod, the rotating rod is provided with a disc, the disc rotates on the rotating rod, the second support arm rotates on the rotating rod and the disc is located on the second support arm, the rotating rod is provided with a first plate, the first plate is rotatably connected with a first roller, the first roller is oppositely provided with two groups, the first plate is perpendicular to the second support arm, the second support arm is provided with a second roller on the corresponding end surface of the hoisting device, the rope on the pulling member passes between the two groups of first rollers and is wound on the second roller until hoisted on the hoisting device, at this time the pulling member can drive the hoisting device to move up and down to hoist the workpiece, and at the same time the first support arm and the second support arm can be folded to make the workpiece can be placed in more positions, thereby realizing the adaptation to different placement positions. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the folding arm crane in the utility model.

[0012] Figure 2 It is a structural schematic view of the folding arm crane in the utility model. Figure 1 It is a local enlarged view of A in the utility model.

[0013] In the figure: 1, stand column; 2, driving member; 3, first support arm; 31, support plate; 32, rotating rod; 33, disc; 34, first plate; 35, first roller; 4, second support arm; 41, second roller; 5, measuring member; 6, hoisting device; 7, pulling member. DETAILED DESCRIPTION

[0014] The folding arm crane provided in the embodiments of the present application solves the problem that the ordinary support arm in the prior art can only place the object in a circular edge with the stand column as the radius, and is difficult to adapt to the placement position.

[0015] The technical solution in the embodiments of the present application is to solve the above problems, and the general idea is as follows

[0016] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings in the specification and specific embodiments.

[0017] A folding arm crane, comprising a stand 1, a driving member 2 arranged on the stand 1, a first supporting arm 3 arranged at an acting end of the driving member 2, a second supporting arm 4 arranged on the first supporting arm 3, a measuring member 5 for measuring a rotating angle of the second supporting arm 4, a hoisting device 6 for hoisting a workpiece, and a pulling member 7 for driving the hoisting device 6 to move up and down; the pulling member 7 is arranged on the first supporting arm 3; an end surface of the pulling member 7 is connected with the hoisting device 6; and the measuring member 5 is arranged at a hinge between the first supporting arm 3 and the second supporting arm 4.

[0018] The first supporting arm 3 is provided with a supporting plate 31; the supporting plate 31 is mirror-symmetrical with two groups; the supporting plate 31 is provided with a rotating rod 32; the rotating rod 32 corresponds to the second supporting arm 4; the rotating rod 32 is provided with a disc 33; and the measuring member 5 corresponds to the disc 33.

[0019] The rotating rod 32 is provided with a first plate 34; the first plate 34 is rotatably connected with a first roller 35; the first roller 35 is oppositely arranged with two groups; the first plate 34 is perpendicular to the second supporting arm 4; the second supporting arm 4 is provided with a second roller 41 on a corresponding end surface of the hoisting device 6; a rope on the pulling member 7 passes between the two groups of first rollers 35 and is wound on the second roller 41 until being connected to the hoisting device 6.

[0020] The stand 1 is provided with the driving member 2, the driving member 2 assists the rotation of the first supporting arm 3, an acting end of the driving member 2 is provided with the first supporting arm 3, one side of the first supporting arm 3 is provided with the pulling member 7, the other side of the first supporting arm 3 is provided with the supporting plate 31, the supporting plate 31 is oppositely arranged with two groups up and down, the supporting plate 31 is rotatably connected with the rotating rod 32, the rotating rod 32 is provided with the disc 33, the disc 33 rotates on the rotating rod 32, the second supporting arm 4 rotates on the rotating rod 32 and the disc 33 is located on the second supporting arm 4, the rotating rod 32 is provided with the first plate 34, the first plate 34 is rotatably connected with the first roller 35, the first roller 35 is oppositely arranged with two groups, the first plate 34 is perpendicular to the second supporting arm 4, the corresponding end surface of the second supporting arm 4 and the hoisting device 6 is provided with the second roller 41, the rope on the pulling member 7 passes between the two groups of first rollers 35 and is wound on the second roller 41 until being hoisted on the hoisting device 6, at this time, the pulling member 7 can drive the hoisting device 6 to move up and down so as to hoist the workpiece, and meanwhile, the first supporting arm 3 and the second supporting arm 4 can be folded so that the workpiece can be placed in more positions.

[0021] Because the driving part 2 is arranged on the stand column 1, the driving part 2 assists the rotation of the first supporting arm 3, the acting end of the driving part 2 is provided with the first supporting arm 3, one side of the first supporting arm 3 is provided with the pulling part 7, the other side of the first supporting arm 3 is provided with the supporting plate 31, the supporting plate 31 is provided with two groups in up and down direction, the rotating rod 32 is rotatably connected on the supporting plate 31, the disc 33 is arranged on the rotating rod 32, the disc 33 rotates on the rotating rod 32, the second supporting arm 4 rotates on the rotating rod 32 and the disc 33 is located on the second supporting arm 4, the first plate 34 is arranged on the rotating rod 32, the first roller 35 is rotatably connected on the first plate 34, the first roller 35 is provided with two groups, the first plate 34 is perpendicular to the second supporting arm 4, the second roller 41 is arranged on the corresponding end surface of the hoisting device 6, the rope on the pulling part 7 passes between the two groups of first rollers 35 and is arranged on the second roller 41 until hoisted on the hoisting device 6, at this time, the pulling part 7 can drive the hoisting device 6 to move up and down so as to hoist the workpiece, at the same time, the first supporting arm 3 and the second supporting arm 4 can be folded so that the workpiece can be placed in more positions, thereby realizing the adaptation to different positions.

[0022] Although preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they have the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications falling within the scope of the present application.

[0023] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A knuckle boom crane, characterized by, The utility model provides a lifting device, including stand (1), drive (2) is arranged on the stand (1), first support arm (3) is arranged in the action end of drive (2), second support arm (4) is arranged on first support arm (3), the measuring piece (5) of measuring the rotation angle of second support arm (4), hoist workpiece's hoisting device (6) and the pulling piece (7) of driving hoisting device (6) moves up and down, the pulling piece (7) is arranged on first support arm (3), the end surface of pulling piece (7) is connected hoisting device (6), the measuring piece (5) is arranged in the articulated place between first support arm (3) and second support arm (4).

2. The knuckle boom of claim 1, wherein, The first support arm (3) is provided with support plate (31);The support plate (31) mirror image has two groups;The support plate (31) is provided with rotating rod (32);The rotating rod (32) corresponds with the second support arm (4);The rotating rod (32) is provided with disc (33);The measuring piece (5) corresponds with the disc (33).

3. The knuckle boom of claim 2, wherein, The rotating rod (32) is provided with first plate (34);The first plate (34) is rotatably connected with first roller (35);The first roller (35) is oppositely provided with two groups;The first plate (34) is perpendicular to the second support arm (4);The second support arm (4) is provided with second roller (41) on the end surface corresponding with the hoisting device (6);The rope on the pulling piece (7) passes between two groups of first roller (35) and is wound on the second roller (41) until connected on the hoisting device (6).

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