CN217947363U - Crane sling with adjustable hoisting point - Google Patents

Abstract

The utility model provides a hoisting point adjustable hoist, including last supporting beam, the top of going up supporting beam is equipped with the running block group, the below of going up supporting beam is equipped with the supporting beam down, it is equipped with rotary mechanism to go up between supporting beam and the supporting beam down, the bottom of supporting beam down is equipped with the bearing frame, two bearing frames are located the tip of supporting beam down respectively, be equipped with the screw rod that the level set up between two bearing frames, the rotatable assembly in both ends of screw rod is on the bearing frame, be equipped with the opposite external screw thread in both ends on the screw rod, the both sides of screw rod are equipped with the guide bar parallel with the screw rod, department is equipped with actuating mechanism in the middle of the bottom of supporting beam down, actuating mechanism drives the screw rod and rotates, the below of supporting beam is equipped with the supporting shoe that two symmetries set up, two supporting shoe threaded connection are on the screw rod, two supporting shoes are located actuating mechanism's both sides respectively, supporting shoe and guide bar sliding connection, the lower extreme of two supporting shoes all can be dismantled and be fixed with the lifting hook. The utility model has simple structure and convenient use.

Description

Crane sling with adjustable hoisting point

Technical Field

The utility model belongs to the technical field of the hoist, especially, relate to a hoisting point adjustable hoist.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects in a certain range, the crane generally comprises hoisting support legs, a main beam, a hoisting trolley, a hoisting mechanism, a crane sling, a cart travelling mechanism and a trolley travelling mechanism, wherein the crane sling is connected with the hoisting mechanism through a steel wire rope, and the patent publication No. CN207361601 is described as follows: the utility model provides a novel patent of use of gantry hook with adjustable hoisting point discloses a gantry hook with adjustable hoisting point, including the lifting hook crossbeam, become the rail ware, forked piece and lifting hook, the both ends of lifting hook crossbeam all are equipped with outer lewis hole and interior lewis hole, are equipped with the connecting axle in outer lewis hole and/or the interior lewis hole, are equipped with three connecting hole on the rail ware, and the hole pitch of outer lewis hole and interior lewis hole is unanimous with the hole pitch of two adjacent connecting holes, and become rail ware and forked piece and articulate in another connecting hole department of rail ware, and the lower extreme of forked piece is connected with the lifting hook. When the lifting point is adjusted in the mechanism, the adjusted position is fixed, the position of the lifting point cannot be adjusted at will according to actual requirements, meanwhile, the lifting appliance cannot rotate, and the angle of the lifting appliance cannot be changed according to requirements when a heavy object is lifted, so that in the prior art, the position of the lifting point cannot be adjusted at will by the crane lifting appliance, and meanwhile, the angle of the lifting appliance cannot be adjusted conveniently.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that current crane sling can not adjust the position of hoisting point wantonly and inconvenient adjustment hoist angle, provide a hoisting point adjustable crane sling, including the last supporting beam that the level set up, go up the supporting beam and play the supporting role, the top of going up the supporting beam is equipped with the running block that two symmetries set up, and two running blocks are located the tip of supporting beam respectively, and two running blocks pass through wire rope and connect on the hoisting mechanism of hoist. A lower supporting beam is arranged below the upper supporting beam, the lower supporting beam plays a supporting role, a rotating mechanism is arranged between the upper supporting beam and the lower supporting beam and drives the lower supporting beam to rotate, the rotating mechanism comprises a rotating shaft which is vertically arranged, the rotating shaft is rotatably assembled in the middle of the upper supporting beam, and the lower end of the rotating shaft extends downwards out of the upper supporting beam and is fixed in the middle of the lower supporting beam; the top end of the upper supporting beam is fixed with a speed reducing motor which is vertically arranged, a power output shaft of the speed reducing motor is fixedly connected with the coaxial line of the rotating shaft, the speed reducing motor drives the rotating shaft to rotate, and the rotating shaft drives the lower supporting beam to rotate by taking the rotating shaft as the center of a circle. The bottom of a lower supporting beam is provided with two bearing seats which are symmetrically arranged, a rotating shaft is arranged in each bearing seat, the two bearing seats are respectively positioned at the end part of the lower supporting beam, a screw rod which is horizontally arranged is arranged between the two bearing seats, the two ends of the screw rod are rotatably assembled on the bearing seats, external threads with opposite ends are arranged on the screw rod, guide rods which are parallel to the screw rod are arranged on the two sides of the screw rod, and the guide rods play a role in guiding. The middle of the bottom end of the lower supporting beam is provided with a driving mechanism, the driving mechanism comprises a gear box fixed at the bottom end of the lower supporting beam, a first bevel gear and a second bevel gear are arranged in the gear box, the first bevel gear is fixed on a screw rod and assembled with the second bevel gear at an angle of 90 degrees, a reduction gearbox is fixed at the bottom of the gear box, a power output shaft of the reduction gearbox is fixedly connected with the second bevel gear, one side of the reduction gearbox is provided with a driving motor, the power output shaft of the driving motor is in transmission connection with a power input shaft of the reduction gearbox, the driving mechanism drives the screw rod to rotate, two supporting blocks which are symmetrically arranged are arranged below the lower supporting beam and are in threaded connection with the screw rod, the two supporting blocks are respectively positioned at two sides of the driving mechanism and are in sliding connection with a guide rod, the lower ends of the two supporting blocks can be detachably fixed with lifting hooks, the driving motor drives the screw rod to rotate clockwise, the two supporting blocks move oppositely along the screw rod, the distance between the two lifting hooks is reduced, the driving motor drives the screw rod to rotate anticlockwise, the two supporting blocks move backwards along the screw rod, and the distance between the two lifting hooks is increased.

Preferably, the bottom of the lower supporting beam is provided with a T-shaped chute, the chute is parallel to the lower supporting beam, the top ends of the two supporting blocks are fixed with sliding blocks matched with the chute, the sliding blocks are connected in the chute in a sliding manner, and the lifting capacity of the lifting appliance can be increased due to the arrangement of the sliding blocks and the chute.

Preferably, the length of the lower support beam is longer than the length of the upper support beam.

The scheme has the following advantages:

the arrangement of the rotating mechanism enables the gear motor to drive the lower supporting beam to rotate through the rotating shaft, and the hook at the bottom end of the small supporting beam rotates along with the lower supporting beam, so that the noon angle of the hanging is adjusted, and the loading and unloading of heavy objects are facilitated; the screw, the guide rod, the supporting blocks and the driving mechanism are arranged, the driving motor drives the screw to rotate clockwise, the two supporting blocks move in opposite directions along the screw, the distance between the two lifting hooks is reduced, the driving motor drives the screw to rotate anticlockwise, the two supporting blocks move in opposite directions along the screw, the distance between the two lifting hooks is increased, and the distance between the two lifting hooks is convenient to adjust; the setting of slider and spout can increase the lifting capacity of hoist, when the distance adjustment between two lifting hooks, more steady.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a perspective view of a lower support beam;

fig. 3 is a front view of the lower support beam.

Reference numerals: 1. an upper support beam; 2. a lower support beam; 3. a rotation mechanism; 4. a bearing seat; 5. a drive mechanism; 11. a movable pulley block; 21. a hook; 22. a chute; 23. a slider; 31. a rotating shaft; 32. a reduction motor; 41. a screw; 42. a guide rod; 43. a supporting block; 44. lifting lugs; 51. a gear case; 52. a reduction gearbox; 53. the motor is driven.

Detailed Description

As shown in fig. 1-3, a lifting point-adjustable crane lifting appliance includes an upper supporting beam 1 horizontally disposed, the upper supporting beam 1 plays a supporting role, two symmetrically disposed movable pulley blocks 11 are disposed on the top end of the upper supporting beam 1, the two movable pulley blocks 11 are respectively located at the end portions of the upper supporting beam 1, and the two movable pulley blocks 11 are connected to a lifting mechanism of a crane through a steel wire rope. A lower supporting beam 2 is arranged below the upper supporting beam 1, the lower supporting beam 2 plays a supporting role, a rotating mechanism 3 is arranged between the upper supporting beam 1 and the lower supporting beam 2, the rotating mechanism 3 drives the lower supporting beam 2 to rotate, the rotating mechanism 3 comprises a rotating shaft 31 which is vertically arranged, the rotating shaft 31 is rotatably assembled in the middle of the upper supporting beam 1, and the lower end of the rotating shaft 31 extends downwards out of the upper supporting beam 1 and is fixed in the middle of the lower supporting beam 2; the top of upper supporting beam 1 is fixed with the gear motor 32 of vertical setting, and the power output shaft and the axis of rotation 31 coaxial line fixed connection of gear motor 32, gear motor 32 drive axis of rotation 31 and rotate, and axis of rotation 31 drives a lower supporting beam 2 and uses axis of rotation 31 as the centre of a circle rotation. The bottom of the lower supporting beam 2 is provided with two bearing seats 4 which are symmetrically arranged, a rotating shaft 31 is arranged in each bearing seat, the two bearing seats 4 are respectively positioned at the end parts of the lower supporting beam 2, a screw rod 41 which is horizontally arranged is arranged between the two bearing seats 4, the two ends of the screw rod 41 are rotatably assembled on the bearing seats 4, external threads with opposite ends are arranged on the screw rod 41, guide rods 42 which are parallel to the screw rod 41 are arranged on the two sides of the screw rod 41, and the guide rods 42 play a role in guiding. The middle of the bottom end of the lower supporting beam 2 is provided with a driving mechanism 5, the driving mechanism 5 comprises a gear box 51 fixed at the bottom end of the lower supporting beam 2, a first bevel gear and a second bevel gear are arranged in the gear box 51, the first bevel gear is fixed on the screw rod 41 and assembled with the first bevel gear at an angle of 90 degrees, the bottom of the gear box 51 is fixed with a reduction box 52, a power output shaft of the reduction box 52 is fixedly connected with the second bevel gear, one side of the reduction box 52 is provided with a driving motor 53, the power output shaft of the driving motor 53 is in transmission connection with a power input shaft of the reduction box 52, the driving mechanism 5 drives the screw rod 41 to rotate, two supporting blocks 43 which are symmetrically arranged are arranged below the lower supporting beam 2 and are in threaded connection with the screw rod 41, the two supporting blocks 43 are respectively positioned at two sides of the driving mechanism 5, the supporting blocks 43 are in sliding connection with the guide rod 42, the lower ends of the two supporting blocks 43 are both detachably and fixedly provided with the lifting hooks 21, the driving motor 53 drives the screw rod 41 to rotate clockwise, the two supporting blocks move along the screw rod 41 in opposite directions, the distance between the two lifting hooks 21 is reduced, the driving motor 53 drives the screw rod 41 to rotate anticlockwise, the screw rod 41 to move along the two supporting blocks 43, the distance between the lifting hooks 443 is increased, the two supporting blocks 43 moves in the backward direction, and the distance is increased.

Preferably, the bottom of the lower support beam 2 is provided with a T-shaped sliding groove 22, the sliding groove 22 is parallel to the lower support beam 2, the top ends of the two support blocks 43 are fixed with sliding blocks 23 matched with the sliding groove 22, the sliding blocks 23 are slidably connected in the sliding groove 22, and the lifting capacity of the lifting appliance can be increased due to the arrangement of the sliding blocks 23 and the sliding groove 22.

Preferably, the length of the lower support beam 2 is longer than the length of the upper support beam 1.

The using process comprises the following steps:

when the utility model is used and the height of the lifting appliance needs to be raised, the lifting mechanism of the crane pulls the movable pulley block 11 through the steel wire rope to raise a certain height, the distance between the two lifting hooks 21 is adjusted according to the heavy object to be raised, the driving motor 53 drives the screw rod 41 to rotate clockwise, the two supporting blocks 443 move along the screw rod 41 in opposite directions, the distance between the two lifting hooks 21 is reduced, the driving motor 53 drives the screw rod 41 to rotate counterclockwise, the two supporting blocks 43 move along the screw rod 41 in opposite directions, and the distance between the two lifting hooks 21 is increased; when waiting that lifting hook 21 hangs and get the heavy object, need to the lifting hook 21 angle of adjustment, start gear motor 32, gear motor 32 drives a lower supporting beam 2 through axis of rotation 31 and rotates, and two lifting hooks 21 follow a lower supporting beam 2 and rotate, conveniently hang and get the heavy object.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", 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 simplification 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 thus, should not be construed as limiting the present invention.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims (6)

1. A crane lifting appliance with an adjustable lifting point comprises an upper supporting beam which is horizontally arranged, wherein two movable pulley blocks which are symmetrically arranged are arranged at the top end of the upper supporting beam, and the two movable pulley blocks are respectively positioned at the end parts of the upper supporting beam.

2. The crane spreader with adjustable lifting point of claim 1, wherein: the rotating mechanism comprises a rotating shaft which is vertically arranged, the rotating shaft can be rotatably assembled in the middle of the upper supporting beam, and the lower end of the rotating shaft extends downwards to form the upper supporting beam and is fixed in the middle of the lower supporting beam; the top end of the upper supporting beam is fixed with a vertically arranged speed reducing motor, and a power output shaft of the speed reducing motor is fixedly connected with the rotating shaft in a coaxial line manner.

3. The crane spreader with adjustable lifting point of claim 1, wherein: the driving mechanism comprises a gear box fixed at the bottom end of the lower supporting beam, a first bevel gear and a second bevel gear are arranged in the gear box, the first bevel gear is fixed on a screw rod, the first bevel gear and the second bevel gear are assembled at an angle of 90 degrees, a reduction gearbox is fixed at the bottom of the gear box, a power output shaft of the reduction gearbox is fixedly connected with the second bevel gear, a driving motor is arranged on one side of the reduction gearbox, and the power output shaft of the driving motor is in transmission connection with a power input shaft of the reduction gearbox.

4. A lifting point adjustable crane spreader according to any of claims 1-3, characterized in that: the bottom of the lower supporting beam is provided with a T-shaped chute which is parallel to the lower supporting beam, the top ends of the two supporting blocks are fixed with sliding blocks matched with the chute, and the sliding blocks are connected in the chute in a sliding manner.

5. A lifting point adjustable crane spreader according to claim 4, wherein: the two movable pulley blocks are connected to a lifting mechanism of the crane through a steel wire rope.

6. A lifting point adjustable crane spreader according to claim 5, wherein: the length of the lower support beam is longer than the length of the upper support beam.

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