CN217498402U

CN217498402U - Steel wire rope stress release device of electric hoist

Info

Publication number: CN217498402U
Application number: CN202221017805.3U
Authority: CN
Inventors: 曾芳; 王菊莲; 刘方; 张吉均
Original assignee: Zhejiang Shuangniao Hoisting Equipment Co ltd
Current assignee: Zhejiang Shuangniao Hoisting Equipment Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-27
Anticipated expiration: 2032-04-18

Abstract

The utility model discloses a wire rope stress relief device of electric block, it includes the wedge sleeve, the voussoir that is located the wedge sleeve, press from both sides the wire rope fag end and the rotatory piece of hanging of fixing between the two, the bearing pipe is fixed on the calabash organism, the bearing pipe diapire is opened has the through-hole, rotatory piece lower part of hanging has the ear of hanging and its upper portion forms the external screw thread axial region, the external screw thread axial region passes this through-hole, thrust ball bearing and slotted nut are installed in proper order to the external screw thread axial region that rotatory piece of hanging is located the bearing pipe, thrust ball bearing supports on the bottom inner wall of bearing pipe, slotted nut and external screw thread axial region are connected; the upper part of the wedge sleeve is connected with the lifting lug part; and an adjusting screw is arranged on the side wall of the bearing pipe corresponding to the slotted nut, penetrates through the side wall of the bearing pipe and can be in threaded connection with the slotted nut. Adopt behind the above-mentioned technical scheme the utility model discloses can release wire rope because of twisting reverse the internal stress that produces, prolong wire rope's working life, can avoid the emergence of incident.

Description

Steel wire rope stress release device of electric hoist

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electric block's wire rope stress relief device belongs to wire rope electric block technical field.

[ background of the invention ]

In the existing wire rope electric hoist, the rope end of a wire rope is clamped and fixed between a wedge sleeve and a wedge block, the wedge sleeve is fixed on a U-shaped plate through a pin shaft, and the U-shaped plate is fixed on a hoist body through the pin shaft.

The wire rope electric block with higher lifting height has the advantages that the working length of the wire rope in a stress state is continuously changed in the lifting operation process, the torsion stress exists in the wire rope, and the rope head of the wire rope is fixed and cannot rotate, so that the internal stress cannot be eliminated, the torsion phenomenon of the wire rope is inevitably caused after the stress is continuously concentrated, the service life of the wire rope is shortened, and safety accidents can be caused under severe conditions.

[ Utility model ] content

The objective not enough that exists to above-mentioned prior art, the utility model aims at providing an electric block's wire rope stress release.

Therefore, the utility model provides a following technical scheme:

the utility model provides a wire rope stress relief device of electric block, includes wire rope, wedge cover and is located the voussoir in the wedge cover, and wire rope's fag end is pressed from both sides tightly to be fixed between wedge cover and voussoir, and its improvement point lies in: the hoisting device comprises a hoist body, a rotating hoisting piece and a bearing pipe, wherein the upper end of the bearing pipe is fixed on the hoist body through a bearing shaft, the bottom wall of the bearing pipe is provided with a through hole, the lower part of the rotating hoisting piece is provided with a hoisting lug part, the upper part of the rotating hoisting piece axially extends to form an external thread shaft part, the external thread shaft part penetrates through the through hole, the external thread shaft section of the rotating hoisting piece in the bearing pipe is sequentially provided with a thrust ball bearing and a slotted nut from bottom to top, the thrust ball bearing is supported on the bottom inner wall of the bearing pipe, and the slotted nut is connected with the external thread shaft section; the upper part of the wedge sleeve is connected with the lifting lug part through a wedge sleeve shaft; an adjusting screw is arranged on the side wall of the bearing pipe corresponding to the slotted nut, and the adjusting screw penetrates through the side wall of the bearing pipe and can be in threaded connection with the slotted nut.

The through hole is a waist-shaped hole, and the hanging lug part is T-shaped.

The utility model discloses following beneficial effect has:

after the rotary hanging piece with the thrust ball bearing is arranged, the rotary hanging piece can rotate relative to the bearing sleeve serving as the fixing piece, so that the steel wire rope is correspondingly driven to rotate, the internal stress generated by torsion of the steel wire rope is released, the service life of the steel wire rope is prolonged, and safety accidents can be avoided.

[ description of the drawings ]

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a front view of the wire rope stress relief device of the electric hoist of the present invention;

fig. 2 is a left side view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 1;

fig. 4 is a perspective view of the bearing tube of the present invention;

fig. 5 is a perspective view of the rotary hanger of the present invention.

[ detailed description ] embodiments

Referring to fig. 1 to 5, a steel wire rope stress releasing device for an electric hoist includes a steel wire rope 1, a wedge sleeve 7 and a wedge 9 located in the wedge sleeve 7, wherein a rope end of the steel wire rope 1 is clamped and fixed between the wedge sleeve 7 and the wedge 9, and the improvement point is that: the hoisting device comprises a hoist body, and is characterized by further comprising a rotary hoisting piece 4 and a bearing pipe 3, wherein the upper end of the bearing pipe 3 is fixed on the hoist body through a bearing shaft 2, the bottom wall of the bearing pipe 3 is provided with a through hole 31, the lower part of the rotary hoisting piece 4 is provided with a hoisting lug part 41, the upper part of the rotary hoisting piece 4 axially extends to form an external thread shaft part 42, the external thread shaft part 42 penetrates through the through hole 31, the external thread shaft section of the rotary hoisting piece 4 positioned in the bearing pipe 3 is sequentially provided with a thrust ball bearing 5 and a slotted nut 6 from bottom to top, the thrust ball bearing 5 is supported on the bottom inner wall of the bearing pipe 3, and the slotted nut 6 is connected with the external thread shaft section; the upper part of the wedge sleeve 7 is connected with the lifting lug part 41 through a wedge sleeve shaft 8; an adjusting screw S is arranged on the side wall of the bearing pipe 3 corresponding to the slotted nut 6, and the adjusting screw S penetrates through the side wall of the bearing pipe 3 and can be in threaded connection with the slotted nut 6.

The specific position of the hoist body is a reel shell B, the upper end of the bearing pipe 3 is provided with a radial mounting hole 30 for the bearing shaft 2 to penetrate through, after the bearing shaft 2 penetrates through the radial mounting hole 30 and the through hole of the reel shell B, the bearing shaft 2 is provided with a first split pin K1, and therefore the bearing pipe 3 is fixed on the reel shell B.

The through hole 31 is a waist-shaped hole, the lifting lug part 41 is in a T shape, and the external dimension of the lifting lug part 41 is matched with the waist-shaped hole, namely, the lifting lug part 41 can pass through the waist-shaped hole. Therefore, the rotating hanging piece 4 and the bearing pipe 3 can be assembled efficiently, the thrust ball bearing 5, the slotted nut 6 and the rotating hanging piece 4 can be assembled into a whole in advance, and then the whole piece extends into the bearing pipe 3 from the upper opening of the bearing pipe and the hanging lug part 41 extends out of the waist-shaped hole.

After the slotted nut 6 is in threaded connection with the external thread shaft section, the second cotter pin K2 is inserted into the external thread shaft section and clamped with the slotted nut 6, so that the slotted nut 6 is connected with the rotary hanger 4, and the slotted nut 6 is a hexagonal slotted nut.

After the wedge sleeve shaft 8 is inserted into the through hole of the wedge sleeve 7 and the pin hole 410 of the lifting lug part 41, the wedge sleeve shaft 8 is inserted with a third cotter pin K3, and the connection of the wedge sleeve 7 and the rotary hanger 4 is completed.

The wall of the slotted nut 6 is provided with a radial screw hole (not marked) for screwing the adjusting screw S, when the steel wire rope 1 is twisted to generate stress, the adjusting screw S can be unscrewed to be separated from the threaded connection with the slotted nut 6, so that the rotary hanging piece 4 can independently rotate relative to the bearing pipe 3, namely the integral part of the rotary hanging piece 4, the thrust ball bearing 5 and the slotted nut 6 drives the wedge sleeve 7, the wedge block 9 and the rope head of the steel wire rope 1 to rotate together, the steel wire rope 1 can be unscrewed to release the twisted state through the back-screwing, the internal stress generated by the twisting of the steel wire rope 1 is eliminated, and the adjusting screw S is screwed again after the internal stress is eliminated.

Claims

1. The utility model provides a wire rope stress relief device of electric block, includes wire rope, wedge cover and is located the voussoir in the wedge cover, and wire rope's fag end is pressed from both sides tightly to be fixed between wedge cover and voussoir, its characterized in that: the hoisting device comprises a hoist body, a rotating hoisting piece and a bearing pipe, wherein the upper end of the bearing pipe is fixed on the hoist body through a bearing shaft, the bottom wall of the bearing pipe is provided with a through hole, the lower part of the rotating hoisting piece is provided with a hoisting lug part, the upper part of the rotating hoisting piece axially extends to form an external thread shaft part, the external thread shaft part penetrates through the through hole, the external thread shaft section of the rotating hoisting piece in the bearing pipe is sequentially provided with a thrust ball bearing and a slotted nut from bottom to top, the thrust ball bearing is supported on the bottom inner wall of the bearing pipe, and the slotted nut is connected with the external thread shaft section; the upper part of the wedge sleeve is connected with the lifting lug part through a wedge sleeve shaft; an adjusting screw is arranged on the side wall of the bearing pipe corresponding to the slotted nut, and the adjusting screw penetrates through the side wall of the bearing pipe and can be in threaded connection with the slotted nut.

2. The wire rope stress relieving apparatus of the electric block of claim 1, wherein: the through hole is a waist-shaped hole, and the hanging lug part is T-shaped.