CN215828198U

CN215828198U - Height limiting assembly of crane

Info

Publication number: CN215828198U
Application number: CN202122046176.9U
Authority: CN
Inventors: 刘亚林; 朱新红; 郑友来
Original assignee: Xuzhou Ruige Electronic Co ltd
Current assignee: Xuzhou Ruige Electronic Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-02-15
Anticipated expiration: 2031-08-27

Abstract

The utility model relates to a height limiting assembly of a crane, which comprises: the jib loading boom, the jib loading boom lower surface is equipped with two location platforms, and two location platforms rotate to be connected with a well runner, and the well runner cooperation has a steel cable, and runner downwardly extending fixedly connected with positioning disk in steel cable one end passes, and positioning disk downwardly extending fixedly connected with couple, positioning disk rotate and are equipped with a high spacing subassembly, the location platform all be equipped with one with high spacing subassembly complex guide sleeve, be equipped with a buffering subassembly in the guide sleeve. Through high spacing subassembly and guide sleeve and the cooperation of buffering subassembly, fix a position and cushion the rope just of going upward the in-process, reduce the lifting hook and the phenomenon that heavy object tenesmus and davit damage appear in the fixed pulley cooperation, improve the holistic security of equipment.

Description

Height limiting assembly of crane

Technical Field

The utility model particularly relates to a limiting device of a crane, in particular to a height limiting assembly of the crane.

Background

The crane is an engineering machine capable of carrying out material hoisting, transporting, loading and unloading work, and is widely applied to hoisting operation and hoisting operation of construction sites, wharfs, oil fields, railways and the like.

When the crane lifts by crane, if the hoist lifting hook exceeds the limited height, the lifting hook can continue upwards under the effect of wire rope, leads to lifting hook and fixed pulley to collide with and counter the phenomenon that the heavy object descends and the davit damages, appears a large amount of incident.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a height limiting assembly of a crane, which can effectively solve the technical problem.

In order to achieve the purpose of the utility model, the following technical scheme is adopted: a height limiting assembly of a crane is characterized by comprising: the crane boom comprises a crane boom, wherein two positioning tables are arranged on the lower surface of the crane boom, the two positioning tables are rotatably connected with a middle rotating wheel, the middle rotating wheel is matched with a steel rope, one end of the steel rope penetrates through the middle rotating wheel to extend downwards and is fixedly connected with a positioning disc, the positioning disc extends downwards and is fixedly connected with a hook, the positioning disc is rotatably provided with a height limiting assembly, the positioning tables are respectively provided with a guide sleeve matched with the height limiting assembly, and a buffer assembly is arranged in the guide sleeve.

Preferably, the height limiting assembly comprises: with positioning disk normal running fit's rotary disk, fixed surface is connected with a plurality of guide posts on the rotary disk, and a plurality of guide posts arrange around the rotary disk axis, and the guide post highly uniform that differs 180 degrees, the rotary disk comprises two semicircle rolling disks, the rotary disk bottom is equipped with a spacing portion, spacing portion fixedly connected with locking subassembly, the positioning disk is equipped with a plurality of and locking subassembly complex constant head tank, a plurality of constant head tanks and guide post one-to-one.

Preferably, the locking assembly comprises: with rotary disk fixed connection's locking shell, it is equipped with a constant head tank complex locking piece and drives the locking piece and constant head tank complex reset spring to slide in the locking shell, the locking piece is equipped with a drive division, drive division passes a locking shell fixedly connected with handle.

Preferably, a positioning block is arranged between the two guides, the positioning block is provided with a limiting groove, the rotating disc is fixedly connected with a guide pillar matched with the limiting groove, and the guide pillar is sleeved on the outer side wall of the steel rope.

Preferably, the limiting groove is a horn-shaped through groove with a downward opening.

Preferably, the cushioning assembly comprises; the buffer plate is arranged in the guide sleeve and fixedly connected with an alarm; the buffer plate with a buffer spring between the location platform, guide sleeve fixedly connected with one control buffer plate down the limiting plate of distance.

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

through high spacing subassembly and guide sleeve and the cooperation of buffering subassembly, fix a position and cushion the rope just of going upward the in-process, reduce the lifting hook and the phenomenon that heavy object tenesmus and davit damage appear in the fixed pulley cooperation, improve the holistic security of equipment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below.

FIG. 1 is a schematic diagram of the overall structure of a height limiting assembly of a crane according to an embodiment of the utility model;

fig. 2 is an exploded view of the overall structure of the height limiting assembly of the crane in the embodiment of the utility model.

Description of the figures

1. The crane boom is characterized by comprising a crane boom 2, a positioning table 3, a transfer wheel 4, a steel rope 5, a positioning disc 6, a hook 7, a guide sleeve 8, a guide column 9, a locking shell 10, a locking block 11, a return spring 12, a handle 13, a positioning block 14, a buffer plate 15, a buffer spring 16 and a limiting plate.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1, a height limiting assembly of a crane includes: the crane boom comprises a crane boom 1, wherein two positioning tables 2 are arranged on the lower surface of the crane boom 1, the two positioning tables 2 are rotatably connected with a middle rotating wheel 3, and the middle rotating wheel 3 specifically adopts a fixed pulley.

As shown in fig. 1 and 2, the middle rotating wheel 3 is matched with a steel rope 4, one end of the steel rope 4 penetrates through the middle rotating wheel 3 to extend downwards and is fixedly connected with a positioning disc 5, the positioning disc 5 extends downwards and is fixedly connected with a hook 6, and the hook 6 is convenient for hanging and taking heavy objects.

The positioning disk 5 is provided with a height limiting component in a rotating way, and the positioning table 2 is provided with a guide sleeve 7 matched with the height limiting component.

Highly spacing subassembly includes: with 5 normal running fit's of positioning disk rotary disk, surface fixed is connected with a plurality of guide posts 8 on the rotary disk, and a plurality of guide posts 8 are highly different, and the guide post 8 height that differs 180 degrees is unanimous.

A plurality of guide posts 8 are arranged around the axis of the rotary disc, the rotary disc is composed of two semicircular rotary discs, the two semicircular rotary discs are fixed and then are sleeved on the outer side of the positioning disc 5, and a limiting part is arranged at the bottom of the rotary disc and fixes a locking block 10.

The positioning disk 5 is provided with a plurality of and locking subassembly complex constant head tanks, a plurality of constant head tanks and guide post 8 one-to-one, thereby through locking piece 10 with different constant head tank cooperations control different guide post 8 and the cooperation of guide sleeve 7. The ascending distance of the hook 6 can be conveniently controlled.

The locking assembly includes: with rotary disk fixed connection's locking shell 9, slide in the locking shell 9 and be equipped with a constant head tank complex locking piece 10 and drive locking piece 10 and constant head tank complex reset spring 11, drive locking piece 10 through reset spring 11 and pass rotary disk and constant head tank cooperation realization locking.

The locking piece 10 is equipped with a drive division, and the drive division passes a locking shell 9 fixedly connected with handle 12, thereby drives locking piece 10 compression reset spring 11 through handle 12 and drives locking piece 10 and break away from the constant head tank.

A locating block 13 is arranged between the two guide sleeves 7, a limiting groove is formed in the locating block 13, the limiting groove is a horn-shaped through groove with a downward opening, and a guide pillar matched with the limiting groove is fixedly connected to the rotary disk.

The trumpet-shaped through groove is convenient for the guide pillar to be better located, reduces the phenomenon that the guide pillar bumps into when going upward, and the outer side wall of steel rope 4 is located to the guide pillar cover, and the guide pillar specifically adopts the higher flexible material of hardness.

A buffer component is arranged in the guide sleeve 7, and comprises; a buffer plate 14 is arranged in the guide sleeve 7, and the buffer plate 14 is fixedly connected with an alarm.

A buffer spring 15 is arranged between the buffer plate 14 and the positioning table 2, and a limit plate 16 for controlling the descending distance of the buffer plate 14 is fixedly connected with the guide sleeve 7.

As shown in figures 1 and 2, during work, the hook 6 is hung with a heavy object and then moves upwards, the guide post is matched with the limiting groove, the phenomenon that the hook 6 shakes in the ascending process is reduced, and the guide post 8 is convenient to be better matched with the guide sleeve 7.

In the process that the hook 6 continues to move upwards, the guide post 8 is in contact with the buffer plate 14 and drives the alarm to trigger, so that the crane is driven to stop power failure, and the hook 6 stops moving upwards.

When the hook 6 needs to be adjusted to go upward high, the handle 12 drives the locking block 10 to compress the reset spring 11, so that the locking block 10 is driven to be separated from the positioning groove, and the rotating disc is driven to rotate around the positioning disc 5.

When the locking block rotates to a specified position, the locking block 10 moves upwards under the action of the return spring 11 to be matched with the positioning groove to realize locking.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model.

Claims

1. A height limiting assembly of a crane is characterized by comprising: the crane boom comprises a crane boom, wherein two positioning tables are arranged on the lower surface of the crane boom, the two positioning tables are rotatably connected with a middle rotating wheel, the middle rotating wheel is matched with a steel rope, one end of the steel rope penetrates through the middle rotating wheel to extend downwards and is fixedly connected with a positioning disc, the positioning disc extends downwards and is fixedly connected with a hook, the positioning disc is rotatably provided with a height limiting assembly, the positioning tables are respectively provided with a guide sleeve matched with the height limiting assembly, and a buffer assembly is arranged in the guide sleeve.

2. The height stop assembly of a crane of claim 1, wherein the height stop assembly comprises: with positioning disk normal running fit's rotary disk, fixed surface is connected with a plurality of guide posts on the rotary disk, and a plurality of guide posts arrange around the rotary disk axis, and the guide post highly uniform that differs 180 degrees, the rotary disk comprises two semicircle rolling disks, the rotary disk bottom is equipped with a spacing portion, spacing portion fixedly connected with locking subassembly, the positioning disk is equipped with a plurality of and locking subassembly complex constant head tank, a plurality of constant head tanks and guide post one-to-one.

3. The height stop assembly for a crane of claim 2, wherein the locking assembly comprises: with rotary disk fixed connection's locking shell, it is equipped with a constant head tank complex locking piece and drives the locking piece and constant head tank complex reset spring to slide in the locking shell, the locking piece is equipped with a drive division, drive division passes a locking shell fixedly connected with handle.

4. The height-limiting assembly of claim 2, wherein a positioning block is disposed between the two guides, the positioning block has a limiting groove, the rotating disc is fixedly connected with a guide post engaged with the limiting groove, and the guide post is sleeved on the outer sidewall of the steel cable.

5. The height limiting assembly of claim 4, wherein the limiting groove is a trumpet-shaped through groove with a downward opening.

6. The height stop assembly of a crane of claim 1, wherein the buffer assembly comprises; the buffer plate is arranged in the guide sleeve and fixedly connected with an alarm; the buffer plate with a buffer spring between the location platform, guide sleeve fixedly connected with one control buffer plate down the limiting plate of distance.