CN215711371U

CN215711371U - Double-overload rope end fixing structure of electric hoist

Info

Publication number: CN215711371U
Application number: CN202122387398.7U
Authority: CN
Inventors: 朱云国
Original assignee: Zhejiang Kaidao Hoisting Machinery Co ltd
Current assignee: Zhejiang Kaidao Hoisting Machinery Co ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-02-01
Anticipated expiration: 2031-09-28

Abstract

The utility model belongs to the technical field of cranes, and relates to a double-overload rope end fixing structure of an electric hoist, wherein the electric hoist comprises a cross beam, a winding drum and a lower lifting hook, a rope end fixing component is arranged on the cross beam and comprises a fixing frame, a pair of overload protectors is arranged in the fixing frame, rope end fixing hanging plates are respectively arranged on the overload protectors, the rope end fixing component and the lower lifting hook are connected through two steel wire ropes, one end of each steel wire rope is fixed on the rope end fixing hanging plate, and the other end of each steel wire rope is wound around a lower lifting hook pulley and then fixed on the winding drum. The double-overload rope end fixing structure of the electric hoist provided by the utility model improves the safety of the electric hoist through the structure of the double-overload protector and the double steel wire rope.

Description

Double-overload rope end fixing structure of electric hoist

Technical Field

The utility model belongs to the technical field of cranes, and relates to a double-overload rope end fixing structure of an electric hoist.

Background

The safety of the current steel wire rope crane is the first big problem concerned by users, the traditional steel wire rope hoist is usually provided with a steel wire rope, the rope end is balanced and fixed by winding a fixed pulley arranged on a support, one end of the steel wire rope is fixed, the other end of the steel wire rope is fixed by a lower hook pulley and an upper support fixed pulley, and the steel wire rope is wound and fixed on a winding drum. Only one overload protector is arranged on the existing hoist, potential safety hazards exist once the hoist fails, when the hoist is overloaded, the steel wire rope can be disconnected, and once the steel wire rope is disconnected, the lifting hook of the steel wire rope hoist can directly fall down, so that safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a double-overload rope end fixing structure of an electric hoist, and the safety of the electric hoist is improved through the structure of double-overload protectors and double steel wire ropes.

In order to solve the above technical problems, the object of the present invention is achieved by the following technical solutions:

two overload rope end fixed knot of electric block construct, electric block includes crossbeam, reel and lower lifting hook, be provided with the fixed subassembly of rope end on the crossbeam, the fixed subassembly of rope end includes the mount, is provided with a pair of overload protection ware in the mount, installs the fixed hanger plate of rope end on the overload protection ware respectively, be connected through two wire rope between the fixed subassembly of rope end and the lower lifting hook, wire rope's one end is fixed on the fixed hanger plate of rope end, and the other end is walked around lower lifting hook pulley after the winding and is fixed on the reel.

In the double-overload rope end fixing structure of the electric hoist, the upper end of the fixing frame is rotatably provided with the balance adjusting pin shaft, the balance adjusting pin shaft is fixed on the cross beam, and the axis of the balance adjusting pin shaft is arranged along the width direction of the cross beam.

In the double-overload rope end fixing structure of the electric hoist, the rope end fixing hanger plate is rotatably arranged on the overload protector, and the axis of the overload protector is arranged along the length direction of the cross beam. The rope end fixing hanging plate comprises a U-shaped end at the upper end and a connecting end at the lower end, the U-shaped end can rotate around the overload protector, and the connecting end is fixedly connected with the steel wire rope.

In the double overload rope end fixing structure of the electric hoist, two pairs of mounting plates are sequentially arranged in the fixing frame, the overload protectors are respectively mounted on the two pairs of mounting plates, and the two overload protectors are coaxially and symmetrically arranged.

In the double-overload rope end fixing structure of the electric hoist, the beam and the winding drum are arranged on the supporting flange, the supporting flange is further provided with the gear reduction box, the winding drum is in transmission connection with the hoisting motor through the gear reduction box, and the hoisting motor drives the winding drum to rotate so as to realize that the lower lifting hook moves up and down to hoist the heavy object.

In the double-overload rope end fixing structure of the electric hoist, the support flange is provided with a pair of anti-collision supports, and the anti-collision supports are perpendicular to the support flange.

In the double-overload rope end fixing structure of the electric hoist, an electric box bottom plate is arranged on one side of the cross beam, which is far away from the winding drum, and an electric box is arranged on the outer side of the electric box bottom plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model improves the structure of the traditional single steel wire rope and single overload protector into the structure of double steel wire ropes and double overload protectors. When one overload protector fails, another overload protector prevents the electric hoist from being overloaded; when one steel wire rope is disconnected, the other steel wire rope fixes the lower lifting hook, so that the lower lifting hook is prevented from directly falling, a safety self-protection effect is achieved, and the use safety is greatly improved.

2. According to the utility model, the balance adjusting device is added, and the two steel wire ropes are automatically adjusted when not aligned by rotating the fixing frame around the balance adjusting pin shaft and utilizing the lever principle, so that the level of the lower lifting hook when lifting a heavy object is ensured; the rope end is used for fixing the hanging plate to rotate around the overload protector, so that the lower lifting hook and the steel wire rope can move freely in the lifting process, the lifting force is parallel to the direction of the steel wire rope and the lower lifting hook, and the service life of the steel wire rope is further ensured.

Drawings

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

FIG. 2 is a schematic diagram of the structure of the present invention;

FIG. 3 is a perspective view of the rope end securing assembly of the present invention;

FIG. 4 is a front view of the rope end securing assembly of the present invention;

FIG. 5 is a cross-sectional view of the string end fixing assembly of the present invention

Reference numerals: 1. a cross beam; 2. a reel; 3. a lower hook; 4. a fixed mount; 5. an overload protector; 6. the rope end is fixed with a hanging plate; 7. a wire rope; 8. a balance adjusting pin shaft; 9. mounting a plate; 10. a support flange; 11. a gear reduction box; 12. a hoisting motor; 13. an anti-collision support; 14. an electric box bottom plate; 15. an electric box.

Detailed Description

The utility model is further described in the following with specific embodiments in conjunction with the accompanying drawings, see fig. 1-5:

two overload rope end fixed knot of electric block construct, electric block includes crossbeam 1, reel 2 and lower lifting hook 3, be provided with the fixed subassembly of rope end on the crossbeam 1, the fixed subassembly of rope end includes mount 4, is provided with a pair of overload protection ware 5 in the mount 4, installs the fixed hanger plate 6 of rope end on the overload protection ware 5 respectively, the fixed subassembly of rope end is connected through two wire rope 7 between 3 with lower lifting hook, the one end of wire rope 7 is fixed on the fixed hanger plate 6 of rope end, and the other end is walked around 3 pulleys of lower lifting hook and is twined after and fix on reel 2.

Furthermore, the beam 1 and the winding drum 2 are installed on a support flange 10, a gear reduction box 11 is further installed on the support flange 10, the winding drum 2 is in transmission connection with a lifting motor 12 through the gear reduction box 11, the lifting motor 12 drives the winding drum 2 to rotate, and the lifting hook 3 can move up and down to lift a heavy object.

Referring to fig. 2, the working principle of the present invention is: a hoisting motor 12 drives a winding drum 2 to rotate after being decelerated by a gear reduction box 11, the winding drum 2 drives a lower lifting hook 3 to move up and down to hoist a heavy object through a steel wire rope 7 when rotating, and when one overload protector 5 fails, the other overload protector 5 prevents an electric hoist from being overloaded; when one steel wire rope 7 is disconnected, the other steel wire rope 7 fixes the lower lifting hook 3 to prevent the lower lifting hook 3 from directly falling.

The utility model also provides a balance adjusting device:

referring to fig. 4, the upper end of the fixing frame 4 is rotatably provided with a balance adjusting pin 8, the balance adjusting pin 8 is fixed on the cross beam 1, and the axis of the balance adjusting pin is arranged along the width direction of the cross beam 1. The rotation of the fixing frame 4 around the balance adjusting pin shaft 8 ensures that the two steel wire ropes 7 are automatically adjusted when not parallel and level, and the lower lifting hook 3 can be ensured to be horizontal when lifting heavy objects

Referring to fig. 5, the rope end fixing hanger plate 6 is rotatably disposed on the overload protector 5, and the axis of the overload protector 5 is disposed along the length direction of the cross beam 1. The rope end fixing hanger plate 6 comprises an upper U-shaped end and a lower connecting end, the U-shaped end can rotate around the overload protector 5, and the connecting end is fixedly connected with the steel wire rope 7. The rotation of the hanging plate 6 around the overload protector 5 is fixed by the rope end, so that the lower lifting hook 3 and the steel wire rope 7 can move freely in the lifting process, and the lifting force is parallel to the directions of the steel wire rope 7 and the lower lifting hook 3

Referring to fig. 3, the specific mounting structure of the overload protector 5 is: two pairs of mounting plates 9 are sequentially arranged in the fixing frame 4, the overload protectors 5 are respectively mounted on the two pairs of mounting plates 9, and the two overload protectors 5 are coaxially and symmetrically arranged.

In order to make the electric hoist safer in operation, referring to fig. 1, a pair of anti-collision brackets 13 are arranged on the support flange 10, and the anti-collision brackets 13 are arranged perpendicular to the support flange 10.

Referring to fig. 1, a bottom plate 14 of an electric box 15 is arranged on one side of the beam 1 far away from the winding drum 2, and an electric box 15 is arranged on the outer side of the bottom plate 14 of the electric box 15. By arranging the bottom plate 14 of the electric box 15 in another direction relative to the winding drum 2, the counterweight function can be additionally realized, and the center of gravity of the whole hoist can be ensured to be centered.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. Two overload rope end fixed knot of electric block construct, electric block includes crossbeam (1), reel (2) and lower lifting hook (3), its characterized in that, be provided with the fixed subassembly of rope end on crossbeam (1), the fixed subassembly of rope end includes mount (4), is provided with a pair of overload protector (5) in mount (4), installs the fixed hanger plate of rope end (6) on overload protector (5) respectively, be connected through two wire rope (7) between the fixed subassembly of rope end and lower lifting hook (3), the one end of wire rope (7) is fixed on the fixed hanger plate of rope end (6), and the other end is walked around lower lifting hook (3) pulley after the winding fix on reel (2).

2. The double-overload rope end fixing structure of the electric hoist according to claim 1, wherein the upper end of the fixing frame (4) is rotatably provided with a balance adjusting pin shaft (8), the balance adjusting pin shaft (8) is fixed on the cross beam (1), and the axis of the balance adjusting pin shaft is arranged along the width direction of the cross beam (1).

3. The double overload rope end fixing structure of an electric hoist according to claim 1, wherein the rope end fixing hanger plate (6) is rotatably arranged on an overload protector (5), and the axis of the overload protector (5) is arranged along the length direction of the cross beam (1).

4. The double overload rope end fixing structure of an electric hoist according to claim 1, wherein two pairs of mounting plates (9) are sequentially arranged in the fixing frame (4), the overload protectors (5) are respectively mounted on the two pairs of mounting plates (9), and the two overload protectors (5) are coaxially arranged.

5. The double-overload rope end fixing structure of the electric hoist according to claim 1, wherein the beam (1) and the winding drum (2) are mounted on a support flange (10), a gear reduction box (11) is further mounted on the support flange (10), and the winding drum (2) is in transmission connection with a lifting motor (12) through the gear reduction box (11).

6. The double overload rope end fixing structure of an electric block according to claim 5, wherein a pair of anti-collision brackets (13) are provided on the support flange (10).

7. The double-overload rope end fixing structure of the electric hoist according to claim 1, wherein an electric box bottom plate (14) is arranged on one side of the cross beam (1) far away from the winding drum (2), and an electric box (15) is installed on the outer side of the electric box bottom plate (14).