CN220886778U - Gantry crane with double lifting - Google Patents

Abstract

The utility model discloses a portal crane with double cranes, and relates to the technical field of cranes. The utility model comprises a supporting plate, a bottom supporting frame and a walking rail, wherein the walking rail is fixed at the center of the bottom of the supporting plate along the transverse central line, two electric hoists are movably connected to the outer side of the walking rail, a limiting electric push rod is fixed at one side of each electric hoist, which is close to each other, and the bottom supporting frame is arranged below both sides of the supporting plate. The utility model solves the problems that the distance between two electric hoists is not convenient enough when the portal crane works and the lifting height is not high enough when the portal crane lifts larger goods by arranging the supporting plate, the bottom supporting frame and the walking track, and has the advantages that: the distance between two electric hoists is more convenient to determine when the portal crane works, and the lifting height can be changed when the portal crane lifts by crane to larger cargoes, so that the portal crane has better lifting applicability to cargoes with different sizes.

Description

Gantry crane with double lifting

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a portal crane with double cranes.

Background

Gantry cranes are a variant of bridge cranes, also called gantry cranes. The device is mainly used for loading and unloading operations of outdoor goods yards, stock yards and bulk cargoes. The portal crane has the characteristics of high field utilization rate, large operation range, wide application range, strong universality and the like, is widely used in port cargo yards, and needs to adopt the cooperation of two electric hoists for working in order to better increase the stability of cargo lifting when the portal crane works, but the portal crane still has the following defects in actual use:

When the portal crane works, two electric hoists are adopted for lifting goods well, when the two electric hoists work, the two electric hoists are matched for lifting the goods, but when the portal crane works, the distance between the two electric hoists is uncertain, when the portal crane is pulled by the goods, the portal crane is easy to shake, and the use safety is affected;

When a portal crane works, the maximum lifting height of the goods is usually determined to be unchangeable, but when the crane works, the goods with different sizes are usually lifted, and when the goods with larger volume are lifted, the lifting height is not high enough, so that the using range of the crane is affected.

Disclosure of utility model

The utility model aims to provide a portal crane with double lifting, which solves the problems that the distance between two electric hoists is not convenient enough to determine when the portal crane works and the lifting height is not high enough easily when larger goods are lifted by arranging a supporting plate, a bottom supporting frame and a walking rail.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

The utility model relates to a portal crane with double lifting, which comprises a supporting plate, bottom supporting frames and a walking rail, wherein the walking rail is fixed at the center of the bottom of the supporting plate along a transverse center line, two electric hoists are movably connected to the outer side of the walking rail, limiting electric push rods are fixed to one sides of the two electric hoists, which are close to each other, the bottom supporting frames are arranged below the two sides of the supporting plate, the walking rail is supported on the supporting plate through the supporting plate during operation, the supporting plate is supported on the ground through the bottom supporting frames, and the supporting plate and the walking rail are driven to change positions in a matching manner during operation, and the electric hoists are movably connected on the supporting plate through the walking rail.

Further, the two ends of the supporting plate are both fixed with connecting blocks, the two short sides of the bottom of each connecting block are both fixed with supporting rods, and the supporting plate is supported on the lifting plate under the supporting action of the supporting rods when the supporting plate works.

Further, two the bottom support frame all includes the lifter plate, two bracing pieces of connecting block bottom are fixed respectively in two minor face departments at two lifter plate tops, same the middle part is fixed with the whippletree between two bracing pieces of connecting block bottom, and two bracing pieces that are located same connecting block below increase the intensity of support through the whippletree.

Further, the bottom support frame still includes drive assembly and lift electric putter, two minor face departments at drive assembly top all are fixed with lift electric putter, two the flexible end of lift electric putter all is fixed in the bottom of lifter plate, and the bottom support frame is when carrying out work, goes up and down in drive assembly's top through lift electric putter drive lifter plate.

Further, the bottom support frame still includes pivot and walking wheel, a plurality of output of drive assembly both sides all are fixed with the pivot, every the one end that drive assembly was kept away from to the pivot all is fixed with the walking wheel, and the bottom support frame is when carrying out work, through drive assembly drive pivot rotation, drives the walking wheel motion for the walking wheel is when rotating, drives backup pad, bottom support frame and walking track and moves on outside track.

Further, two spacing electric putter keeps away from its electric block one end of connecting mutually fixed, electric block's output all is fixed with wire rope, wire rope keeps away from the one end of electric block output and fixes the bottom in electric block output one side, and spacing electric putter is when carrying out work, is driven by electric block through wire rope when being driven, drives the goods that is lifted and goes up and down.

The utility model has the following beneficial effects:

According to the utility model, the problem that the distance between the two electric hoists is not convenient enough when the portal crane works is solved by arranging the supporting plate and the walking track, the size of the goods needing double lifting is determined when the portal crane works, the limiting electric push rod is started at the moment, the two electric hoists on the walking track are driven to change positions, and when the two electric hoists reach a proper distance, the distance between the two electric hoists is determined when the portal crane works, so that the portal crane is suitable for lifting goods with corresponding sizes, and the distance between the two electric hoists is more convenient to determine when the portal crane works.

According to the utility model, the problem that the lifting height of the gantry crane is not high enough when the gantry crane lifts larger goods during working is solved by arranging the supporting plate and the bottom supporting frame, the lifting electric push rod at the top of the driving assembly is started, the lifting plate is driven to lift when the lifting electric push rod works, the supporting rod and the connecting block are driven to lift when the lifting plate lifts, the connecting block is driven to lift when the connecting block lifts, and the supporting plate and the walking rail are driven to lift when the connecting block lifts, so that the lifting height of the goods can be changed, and the lifting height applicability of the gantry crane when the gantry crane lifts larger goods during working is better.

Drawings

FIG. 1 is a perspective view of an assembled structure of a gantry crane with dual lift;

FIG. 2 is a perspective view of the structure of the support plate;

FIG. 3 is a perspective view of the bottom bracket structure;

fig. 4 is a perspective view of a walking track structure.

Reference numerals:

1. A support plate; 101. a connecting block; 102. a support rod; 103. a cross bar; 2. a bottom support frame; 201. a drive assembly; 202. a rotating shaft; 203. a walking wheel; 204. lifting the electric push rod; 205. a lifting plate; 3. a walking rail; 301. an electric hoist; 302. limiting the electric push rod; 303. a wire rope.

Detailed Description

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

Referring to fig. 1-4, the utility model discloses a gantry crane with double lifting, which comprises a supporting plate 1, a bottom supporting frame 2 and a walking track 3, wherein the walking track 3 is fixed at the center of the bottom of the supporting plate 1 along the transverse center line, the walking track 3 is supported on the supporting plate 1 during operation, so that the electric hoist 301 is provided with the walking function during operation, two electric hoist 301 are movably connected to the outer side of the walking track 3, corresponding goods are driven to lift during operation through the electric hoist 301, the position of the walking track 3 is changed, a limit electric push rod 302 is fixed on one side of the two electric hoist 301, which is close to each other, during operation, the limit electric push rod 302 is used for driving the relative position between the two electric hoist 301, the bottom supporting frame 2 is arranged below two sides of the supporting plate 1, and the bottom supporting frame 2 is used for supporting the supporting plate 1 on the walking track during operation.

As shown in fig. 1 and 2, two ends of the support plate 1 are fixed with connection blocks 101, two short sides of the bottoms of the two connection blocks 101 are fixed with support rods 102, and when the support plate 1 works, the support rods 102 are connected through the connection blocks 101, and the support rods 102 are supported on the lifting plate 205.

As shown in fig. 1-3, the two bottom support frames 2 include lifting plates 205, two support rods 102 at the bottom of two connecting blocks 101 are respectively fixed at two short sides of the top of the two lifting plates 205, a bar 103 is fixed in the middle between the two support rods 102 at the bottom of the same connecting block 101, the bottom support frames 2 support the support rods 102 through the lifting plates 205, and the stability supported by the two support rods 102 is increased through the bar 103.

As shown in fig. 1 and 3, the bottom support frame 2 further includes a driving assembly 201 and a lifting electric push rod 204, the lifting electric push rod 204 is fixed at two short sides of the top of the driving assembly 201, the telescopic ends of the two lifting electric push rods 204 are fixed at the bottom of the lifting plate 205, and when the bottom support frame 2 works, the lifting plate 205 is driven to lift on the driving assembly 201 by the lifting electric push rod 204.

As shown in fig. 1 and 3, the bottom support frame 2 further includes a rotating shaft 202 and a travelling wheel 203, the output ends on two sides of the driving assembly 201 are fixed with the rotating shafts 202, one end of each rotating shaft 202 far away from the driving assembly 201 is fixed with the travelling wheel 203, when the driving assembly 201 works, the driving assembly is started to drive the rotating shaft 202 to rotate, the travelling wheel 203 is driven to rotate, and the travelling wheel 203 is arranged in a track when working, so that the support plate 1, the bottom support frame 2 and the travelling track 3 move in the corresponding track when working.

As shown in fig. 1 and 4, one ends of two limiting electric push rods 302, which are far away from the electric hoist 301 connected with the two limiting electric push rods, are mutually fixed, the output ends of the electric hoist 301 are both fixed with a steel wire rope 303, one end, which is far away from the output end of the electric hoist 301, of the steel wire rope 303 is fixed at the bottom of one side of the output end of the electric hoist 301, and when the electric hoist 301 works, the movable pulley equipment for lifting is movably connected through the steel wire rope 303, so that the movable pulley is driven to lift, and goods are driven to lift.

The specific working principle of the utility model is as follows: during operation, firstly, the size of goods which need to be doubly lifted is determined during operation, at the moment, the limiting electric push rod 302 is started, the position between the two electric hoists 301 on the walking track 3 is driven to change, when the proper distance between the two electric hoists 301 is reached, the distance between the two electric hoists 301 is determined during operation, the lifting of the goods with the corresponding size is suitable, the size of the goods is determined, whether the height from the supporting plate 1 to the ground meets the requirement of lifting the goods during lifting is determined, if not, the lifting electric push rod 204 at the top of the driving assembly 201 is started, when the lifting electric push rod 204 works, the lifting plate 205 is driven to lift, when the lifting plate 205 lifts, the supporting rod 102 and the connecting block 101 are driven to rise, the connecting block 101 is driven to rise when the connecting block 101 rises, the supporting plate 1 and the walking track 3 are driven to rise when the connecting block 101 rises, so that the lifting height of cargoes can be changed, lifting work can be started, during operation, the steel wire rope 303 is driven by the electric hoist 301, the cargo lifting assembly is driven by the lifting equipment to drive the cargoes to rise when the steel wire rope 303 works, the position of the cargo lifting assembly is changed by the electric hoist 301, the rotating shaft 202 is driven by the driving assembly 201 to rotate, the walking wheel 203 is driven to rotate, the positions of the supporting plate 1, the bottom supporting frame 2 and the walking track 3 on the external track are changed, and cargo transferring work is carried out.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims (6)

1. The utility model provides a gantry crane with two lifts by crane, includes backup pad (1), bottom support frame (2) and walking track (3), its characterized in that: the electric hoist is characterized in that a walking track (3) is fixed at the center of the bottom of the supporting plate (1) along the transverse center line, two electric hoists (301) are movably connected to the outer side of the walking track (3), limiting electric push rods (302) are fixed to one sides, close to each other, of the two electric hoists (301), and bottom supporting frames (2) are arranged below two sides of the supporting plate (1).

2. A gantry crane with double hoisting according to claim 1, characterized in that: connecting blocks (101) are fixed at two ends of the supporting plate (1), and supporting rods (102) are fixed at two short sides of the bottoms of the two connecting blocks (101).

3. A gantry crane with double hoisting according to claim 2, characterized in that: the two bottom support frames (2) comprise lifting plates (205), two support rods (102) at the bottoms of the connecting blocks (101) are respectively fixed at two short sides at the tops of the two lifting plates (205), and a cross bar (103) is fixed in the middle between the two support rods (102) at the bottoms of the same connecting block (101).

4. A gantry crane with double hoisting according to claim 3, characterized in that: the bottom support frame (2) further comprises a driving assembly (201) and lifting electric push rods (204), wherein the lifting electric push rods (204) are fixed at two short sides of the top of the driving assembly (201), and the telescopic ends of the two lifting electric push rods (204) are fixed at the bottom of the lifting plate (205).

5. A gantry crane with dual lift as claimed in claim 4, wherein: the bottom support frame (2) further comprises a rotating shaft (202) and travelling wheels (203), the rotating shafts (202) are fixed at a plurality of output ends on two sides of the driving assembly (201), and the travelling wheels (203) are fixed at one end, far away from the driving assembly (201), of each rotating shaft (202).

6. A gantry crane with double hoisting according to claim 1, characterized in that: two spacing electric putter (302) keep away from electric block (301) one end of its connection and fix each other, the output of electric block (301) all is fixed with wire rope (303), the one end that electric block (301) output was kept away from to wire rope (303) is fixed in the bottom of electric block (301) output one side.