CN211035000U

CN211035000U - Electric hoist winding drum with buffering function

Info

Publication number: CN211035000U
Application number: CN201922142554.6U
Authority: CN
Inventors: 喻杨; 喻幸福
Original assignee: Hubei Hengxin Transmission Equipment Co ltd
Current assignee: Hubei Hengxin Transmission Equipment Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-17
Anticipated expiration: 2029-11-29

Abstract

The utility model provides an electric hoist reel with buffer function belongs to mechanical technical field. This electric hoist reel includes the body of circular tube-shape and the retaining ring that is located the body both sides, the cover is equipped with a sheath on the body, the sheath both ends are provided with the dashpot with two each retaining ring one-to-one respectively, the dashpot is located the inboard sheath that corresponds the retaining ring and links to each other with the dashpot is fixed, be connected through the bearing between the retaining ring inboard and the dashpot outside, the medial surface of retaining ring still circumference evenly is provided with a plurality of spacing pieces one, the distance between spacing piece one and the sheath axis is greater than the radius of bearing, the lateral surface of dashpot is provided with the spacing piece two with spacing piece one-to-one, spacing piece one and be connected with a spring between the spacing piece two that corresponds. The utility model has the advantages of good buffering effect and the like.

Description

Electric hoist winding drum with buffering function

Technical Field

The utility model belongs to the technical field of machinery, a electric hoist reel with buffer function is related to.

Background

The winding drum of the electric hoist is driven by the motor to wind the steel strand to realize the hoisting of heavy parts, and the steel strand or the winding drum is damaged by the large impact force of the winding drum at the hoisting moment and at the hoisting end, so that accidents are caused, and the problem also exists when the electric hoist is stopped.

The existing solution is to set a buffer structure on the output shaft of the motor, but the torque radius is small after the buffer part at the output shaft of the motor is set, and the connecting piece between the output shaft of the motor and the winding drum is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that exists to current technique, provide an electric hoist reel with buffer function, the utility model aims to solve the technical problem how improve buffering effect.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an electric hoist reel with buffer function, its characterized in that, this electric hoist reel includes the body of circular tube-shape and the retaining ring that is located the body both sides, the cover is equipped with a sheath on the body, the sheath both ends are provided with the dashpot with two each retaining ring one-to-one respectively, the dashpot is located the inboard that corresponds the retaining ring the sheath links to each other with the dashpot is fixed, be connected through the bearing between the retaining ring inboard and the dashpot outside, the medial surface of retaining ring still circumference evenly is provided with a plurality of spacing pieces one, distance between spacing piece one and the sheath axis is greater than the radius of bearing, the lateral surface of dashpot is provided with spacing piece two with spacing piece one-to-one, spacing piece one with be connected with a spring between the spacing piece two that corresponds.

The bearing is arranged at the inner ends of the first limiting piece and the second limiting piece, so that the distance between the spring and the axis is large, when the bearing receives large impact from the sheath, the range capable of being staggered between the body and the sheath is large, the range of the spring deformation is large, the buffering effect is good, the reliability can be improved, and the bearing is not subjected to large torque and is arranged for relative rotation between the sheath and the body.

In the electric hoist winding drum with the buffering function, the first limiting sheet is three, and the widths of the first limiting sheet and the second limiting sheet are both larger than half of the distance between the check ring and the sheath.

The spring is ensured to be only pressed or pulled, and the relative rotation angle between the sheath and the body is not larger than the rotation angle between the adjacent limiting pieces to prevent accidents.

In the electric hoist winding drum with the buffering function, the outer edge of the check ring is detachably connected with a dustproof ring capable of covering a gap where the limiting piece is located.

Drawings

Fig. 1 is a schematic structural diagram of the electric hoist drum.

Fig. 2 is a sectional view taken in the direction a-a in fig. 1.

In the figure, 1, a body; 2. a retainer ring; 3. a sheath; 5. a buffer tray; 5. a first limiting sheet; 6. a second limiting sheet; 7. a spring; 8. a dust ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the electric hoist drum comprises a cylindrical body 1 and retaining rings 2 located on two sides of the body 1, a sheath 3 is sleeved on the body 1, two ends of the sheath 3 are respectively provided with buffer discs 4 corresponding to the two retaining rings 2 one by one, the buffer discs 4 are located on the inner side of the corresponding retaining rings 2, the sheath 3 is fixedly connected with the buffer discs 4, the inner sides of the retaining rings 2 are connected with the outer sides of the buffer discs 4 through bearings, the inner side surfaces of the retaining rings 2 are also circumferentially and uniformly provided with a plurality of first limiting pieces 5, the distance between the first limiting pieces 5 and the axis of the sheath 3 is larger than the radius of the bearings, the outer side surfaces of the buffer discs 4 are provided with second limiting pieces 6 corresponding to the first limiting pieces 5 one by one, and a spring 7 is connected between the first limiting pieces 5 and the second.

Set up the bearing in the inner of spacing piece 5 and spacing piece two 6, make the distance between spring 7 and the axis great, when receiving sheath 3 and receiving great impact, the scope that can misplace between body 1 and the sheath 3 is bigger, and the scope of spring 7 deformation is also bigger, and the cushioning effect is better, and the reliability can improve, because the bearing itself does not receive great moment of torsion, its setting is for the relative commentaries on classics between sheath 3 and the body 1.

The first limiting pieces 5 are three, and the widths of the first limiting pieces 5 and the second limiting pieces 6 are both larger than half of the distance between the retainer ring 2 and the sheath 3. The spring 7 is ensured to be only pressed or pulled, and the relative rotation angle between the sheath 3 and the body 1 is not caused to be larger than the rotation angle between the adjacent limiting sheets 5, so that the accident is prevented.

The outer edge of the retainer ring 2 is detachably connected with a dustproof ring 8 capable of covering a gap where the first limiting sheet 5 is located.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The electric hoist winding drum with the buffering function is characterized by comprising a circular cylindrical body (1) and retaining rings (2) positioned on two sides of the body (1), wherein a sheath (3) is sleeved on the body (1), buffer discs (4) corresponding to the two retaining rings (2) one by one are respectively arranged at two ends of the sheath (3), the buffer discs (4) are positioned on the inner sides corresponding to the retaining rings (2), the sheath (3) is fixedly connected with the buffer discs (4), the inner sides of the retaining rings (2) are connected with the outer sides of the buffer discs (4) through bearings, a plurality of first limiting pieces (5) are uniformly arranged on the inner side surfaces of the retaining rings (2) in the circumferential direction, the distance between the first limiting pieces (5) and the axis of the sheath (3) is greater than the radius of the bearings, and second limiting pieces (6) corresponding to the first limiting pieces (5) one by one are arranged on the outer side surfaces of the buffer discs (4), a spring (7) is connected between the first limiting sheet (5) and the corresponding second limiting sheet (6).

2. The electric hoist drum with the buffering function as claimed in claim 1, wherein the number of the first limiting pieces (5) is three, and the widths of the first limiting pieces (5) and the second limiting pieces (6) are both greater than half of the distance between the retainer ring (2) and the sheath (3).

3. The electric hoist drum with the buffering function as claimed in claim 1, characterized in that a dust ring (8) capable of covering the gap where the first limiting piece (5) is located is detachably connected to the outer edge of the retaining ring (2).