CN213011576U - Box girder lifting appliance for crawler crane - Google Patents

Abstract

The utility model provides a box girder hoist for crawler-type crane belongs to crane technical field, including connecting block, motor lead screw, first davit, second davit, third davit, fourth davit and couple, there is the hanging piece upper end of connecting block, and the hanging piece is connected with the end of lifting by crane of crane, the lower extreme at the connecting block is fixed to the motor lead screw, and the motor lead screw has four, and the lower extreme of motor lead screw has the slider, first davit, second davit, third davit and fourth davit rotate with the slider to be connected, the lower extreme at first davit, second davit, third davit and fourth davit is installed to the couple. The utility model discloses simple structure, the simple operation, the practicality is strong, can satisfy multiple hoist and mount demand.

Description

Box girder lifting appliance for crawler crane

Technical Field

The utility model belongs to the technical field of the crane, a box girder hoist for crawler crane is related to.

Background

The crane is a lifting and carrying machine widely used in ports, workshops, electric power, construction sites and other places. The name crane is a uniform title for hoisting machinery. The main of cranes are also truck cranes, crawler cranes and tyre cranes. The crane is used for hoisting equipment, emergency rescue, hoisting, machinery and rescue. The crane belongs to material handling machinery, and the working characteristic is that the crane does intermittent motion, namely corresponding mechanisms of taking materials, transferring, unloading and the like in one working cycle work alternately, the lifting appliance plays a role in lifting objects on the crane, the existing lifting appliance can not change the position of a lifting point according to the shape of the lifted object, and the problem needs to be solved by a box girder lifting appliance for a crawler crane.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a box girder hoist for crawler-type crane belongs to crane technical field, simple structure, the simple operation, and the practicality is strong, can satisfy multiple hoist and mount demand.

In order to solve the technical problem, the utility model discloses a technical scheme is: box girder lifting appliance for crawler crane belongs to crane technical field, including connecting block, motor lead screw, first davit, second davit, third davit, fourth davit and couple, there is the hanging piece upper end of connecting block, and the hanging piece is connected with the end of lifting by crane, the lower extreme at the connecting block is fixed to the motor lead screw, and the motor lead screw has four, and the lower extreme of motor lead screw has the slider, first davit, second davit, third davit and fourth davit rotate with the slider to be connected, the lower extreme at first davit, second davit, third davit and fourth davit is installed to the couple.

Further, the rotation angles of the first suspension arm, the second suspension arm, the third suspension arm and the fourth suspension arm are 0-90 degrees.

Furthermore, the side surface of the first suspension arm is provided with a first bulge, the side surface of the second suspension arm is provided with a first groove, the side surface of the third suspension arm is provided with a second groove, the side surface of the fourth suspension arm is provided with a second bulge, and when the suspension arms are in a closed state, the first bulge and the second bulge are embedded in the first groove and the second groove.

Further, still include the spout, the spout is seted up at the lower surface of first davit, second davit, third davit and fourth davit, and the couple is installed in the spout.

Furthermore, the upper end of the hook is connected with a locking block, the locking block is in threaded connection with the hook, the locking block is arranged in a hollow area inside the sliding groove, and the width of the shortest side of the locking block is larger than the width of the opening of the sliding groove.

Compared with the prior art, the utility model has the advantages and positive effect as follows:

1. the utility model discloses simple structure, the simple operation, the practicality is strong, can satisfy multiple hoist and mount demand.

2. The utility model discloses a there is first arch the side of first davit, and there is first recess the side of second davit, and there is the second recess the side of third davit, and there is the second arch the side of fourth davit, and when the davit is in the closure state, first arch and second arch are inlayed and are established in first recess and second recess, and hoisting structure is more stable during the closure.

3. The utility model discloses a lower surface at first davit, second davit, third davit and fourth davit is seted up to the spout, and the couple is installed in the spout, and the couple can slide in the spout, changes the couple position according to the hoist and mount position, and the flexibility is strong.

4. The utility model discloses a width of latch segment shortest side is greater than spout open-ended width, and the latch segment can not drop from the spout, and the couple can not remove after the locking, and the couple hangs the effect stably.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic folding state diagram of the box girder lifting appliance for the crawler crane of the utility model;

FIG. 2 is a folded bottom view of the box girder hanger for the crawler crane of the present invention;

fig. 3 is a schematic view 1 illustrating an opened state of the box girder spreader for a crawler crane according to the present invention;

fig. 4 is a schematic view 2 showing an opened state of the box girder spreader for the crawler crane according to the present invention;

fig. 5 is a schematic diagram of the hook position of the box girder sling for the crawler crane of the present invention.

Reference numerals:

1. connecting blocks; 2. a motor lead screw; 3. a first boom; 4. a second boom; 5. a third boom; 6. a fourth boom; 7. hooking; 8. hanging blocks; 9. a slider; 10. a chute; 31. a first protrusion; 41. a first groove; 51. a second groove; 61. a second protrusion; 71. a locking block; 101. a hollow region.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1-5, the utility model discloses a box girder hoist for crawler-type crane belongs to crane technical field, including connecting block 1, motor lead screw 2, first davit 3, second davit 4, third davit 5, fourth davit 6 and couple 7, there is a string piece 8 connecting block 1's upper end, and string piece 8 is connected with the lift of crane end, motor lead screw 2 fixes the lower extreme at connecting block 1, and motor lead screw 2 has four, and motor lead screw 2's lower extreme has slider 9, first davit 3, second davit 4, third davit 5 and fourth davit 6 rotate with slider 9 to be connected, couple 7 is installed at the lower extreme of first davit 3, second davit 4, third davit 5 and fourth davit 6.

Preferably, the rotation angles of the first boom 3, the second boom 4, the third boom 5 and the fourth boom 6 are 0-90 °.

Preferably, the first projection 31 is arranged on the side surface of the first suspension arm 3, the first groove 41 is arranged on the side surface of the second suspension arm 4, the second groove 51 is arranged on the side surface of the third suspension arm 5, the second projection 61 is arranged on the side surface of the fourth suspension arm 6, when the suspension arms are in a closed state, the first projection 31 and the second projection 61 are embedded in the first groove 41 and the second groove 51, and the hoisting structure is more stable when the suspension arms are closed.

Preferably, the sliding groove 10 is formed in the lower surfaces of the first suspension arm 3, the second suspension arm 4, the third suspension arm 5 and the fourth suspension arm 6, the hook 7 is installed in the sliding groove 10, the hook 7 can slide in the sliding groove 10, the position of the hook 7 is changed according to the hoisting position, and the flexibility is high.

Preferably, the upper end of the hook 7 is connected with the locking block 71, the locking block 71 is in threaded connection with the hook 7, the locking block 71 is arranged in a hollow area 101 inside the sliding groove 10, the width of the shortest side of the locking block 71 is larger than the width of an opening of the sliding groove 10, the locking block 71 cannot fall off from the sliding groove 10, the hook 7 cannot move after being locked, and the hanging effect of the hook 7 is stable.

In the actual working process, when the first suspension arm 3, the second suspension arm 4, the third suspension arm 5 and the fourth suspension arm 6 are folded, the positions of the hooks 7 are relatively concentrated, at the moment, the first suspension arm 3, the second suspension arm 4, the third suspension arm 5 and the fourth suspension arm 6 can be opened according to the shape of a hung object, the hooks 7 move on the sliding grooves 10, and when a hanging point is determined, the suspension arms and the hooks 7 stop moving.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (5)

1. Box girder hoist for crawler-type crane, its characterized in that: including connecting block (1), motor lead screw (2), first davit (3), second davit (4), third davit (5), fourth davit (6) and couple (7), there is hanging piece (8) upper end of connecting block (1), and hanging piece (8) are connected with the end of lifting by crane of crane, the lower extreme at connecting block (1) is fixed in motor lead screw (2), and motor lead screw (2) have four, and the lower extreme of motor lead screw (2) has slider (9), first davit (3), second davit (4), third davit (5) and fourth davit (6) rotate with slider (9) and are connected, the lower extreme at first davit (3), second davit (4), third davit (5) and fourth davit (6) is installed in couple (7).

2. The box girder spreader for a crawler crane according to claim 1, wherein: the rotation angles of the first suspension arm (3), the second suspension arm (4), the third suspension arm (5) and the fourth suspension arm (6) are 0-90 degrees.

3. The box girder spreader for a crawler crane according to claim 1, wherein: the side surface of the first suspension arm (3) is provided with a first protrusion (31), the side surface of the second suspension arm (4) is provided with a first groove (41), the side surface of the third suspension arm (5) is provided with a second groove (51), the side surface of the fourth suspension arm (6) is provided with a second protrusion (61), and when the suspension arms are in a closed state, the first protrusion (31) and the second protrusion (61) are embedded in the first groove (41) and the second groove (51).

4. The box girder spreader for a crawler crane according to any one of claims 1 to 3, wherein: the lifting device is characterized by further comprising a sliding groove (10), wherein the sliding groove (10) is formed in the lower surfaces of the first lifting arm (3), the second lifting arm (4), the third lifting arm (5) and the fourth lifting arm (6), and the hook (7) is installed in the sliding groove (10).

5. The box girder spreader for a crawler crane according to claim 4, wherein: the upper end of the hook (7) is connected with a locking block (71), the locking block (71) is in threaded connection with the hook (7), the locking block (71) is arranged in a hollow area (101) inside the sliding groove (10), and the width of the shortest side of the locking block (71) is larger than the width of an opening of the sliding groove (10).

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