CN113321092B

CN113321092B - Double-layer guide wheel structure of electromagnetic hanging derrick

Info

Publication number: CN113321092B
Application number: CN202110499925.5A
Authority: CN
Inventors: 王少锋
Original assignee: Chengxi Shipyard Co Ltd
Current assignee: Chengxi Shipyard Co Ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2022-06-28
Anticipated expiration: 2041-05-08
Also published as: CN113321092A

Abstract

The invention discloses a double-layer guide wheel structure of an electromagnetic hoisting derrick, which comprises two guide wheels arranged at each corner of an inner frame of the electromagnetic hoisting derrick, wherein the two guide wheels at each corner of the inner frame of the electromagnetic hoisting derrick are respectively arranged at the upper position and the lower position of the inner frame or are respectively arranged at one side of the inner frame. The invention can realize the positioning of the inner frame and the outer frame of the derrick in a limited space by the design, the manufacture and the installation of the upper and lower double guide wheel structures, ensures that the derrick can be stressed symmetrically and uniformly in each direction, ensures that the guide wheels are arranged more reasonably, ensures that the guide wheels of the inner frame of the derrick can be stressed uniformly, and ensures that the derrick can be effectively used for a long time.

Description

Double-layer guide wheel structure of electromagnetic hanging derrick

Technical Field

The invention relates to a double-layer guide wheel structure of an electromagnetic hoisting derrick.

Background

A20 t door type electromagnetic iron absorption crane adopts a derrick type truss structure spliced by angle steel. Because the derrick has long live time, the angle steel is cracked in many places, consequently need change new. The derrick consists of an outer frame and an inner frame, and in order to facilitate the relative sliding of the inner frame and the outer frame in an adjustable manner and realize the expansion and contraction of the derrick, positioning guide wheels (the size of the guide wheels is about 100X 100) are arranged on L120X 120 angle steel at four corners of the inner frame and the outer frame of the derrick. L120-120 angle steel of the outer frame, two surfaces of the angle steel have space to set up the base, each angle can mount 2 positioning guide wheels; however, because the inner frame is not enough in installation space, only one positioning guide wheel is installed at each corner in the prior art.

Each angle of inside casing only installs 1 guide pulley, and 4 guide pulleys at 4 angles of inside casing are installed with the spiral mode, though play the location to the preceding, back, left and right direction of inside and outside frame derrick horizontal cross-section about, but relative atress is uneven, and the guide pulley uses the back for a long time, can with the angle steel contact clearance grow, leads to inside and outside frame to appear rocking when sliding under the upper and lower.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a double-layer guide wheel structure of an electromagnetic hoisting derrick, which realizes the positioning of an inner frame and an outer frame of the derrick in a limited space, ensures that the derrick can be symmetrically and uniformly stressed in each direction, ensures that guide wheels are more reasonably arranged, ensures that guide wheels in an inner frame of the derrick can be uniformly stressed, and ensures that the derrick can be effectively used for a long time.

In order to achieve the purpose, the technical scheme of the invention is to design a double-layer guide wheel structure of an electromagnetic derrick, which comprises two guide wheels arranged at each corner of an inner frame of the electromagnetic derrick, wherein the two guide wheels at each corner of the inner frame of the electromagnetic derrick are respectively arranged at the upper position and the lower position of the inner frame or are arranged on one side of the inner frame. And each corner of the inner frame is provided with a 90-degree double guide wheel. Under the condition that only one guide wheel can be placed on the inner frame base, the guide wheel structure is optimally designed, and the guide wheel support is remanufactured. A steel plate is additionally arranged above the new support, and the other guide wheel can be installed on the steel plate, so that 2 guide wheels can be arranged at each corner of the inner frame, and a structure that the two guide wheels respectively position 2 edges of the angle steel is formed.

The further technical scheme is that guide wheel shafts of two guide wheels at each corner of an inner frame of the electromagnetic hoisting derrick are vertically arranged.

The further technical scheme is that two guide wheels at each corner of an inner frame of the electromagnetic hoisting derrick are respectively arranged at the upper position and the lower position of the inner frame, the guide wheels are rotatably arranged on guide wheel supports, the guide wheel supports are fixedly connected to the surface of the inner frame, and the guide wheels are abutted against the outer frame.

The technical scheme is that the inner frame and the outer frame are of a derrick type truss structure formed by splicing angle steels, and the width and the thickness of each angle steel are 120 mm.

The technical scheme is that two guide wheels at each angle of the inner frame of the electromagnetic hoisting derrick are arranged on one side of the inner frame, the two guide wheels are respectively a first guide wheel and a second guide wheel, the first guide wheel is rotatably arranged on a guide wheel support, the guide wheel support is fixedly connected to the surface of the inner frame, the guide wheel support is fixedly connected with two extension plates, and the second guide wheel is rotatably arranged between the two extension plates. Therefore, the outer frame guide wheel has enough positions, and the positioning guide wheel can be arranged in two directions. In the newly designed guide wheel structure, a steel plate is added on the guide wheel, and the guide wheel is taken as a base to be provided with another guide wheel.

The invention has the advantages and beneficial effects that: through the design, preparation and installation of upper and lower form double guide wheel structure, can realize the location of the inside and outside frame of derrick in limited space, ensured that every direction of derrick can both be symmetrical, even atress for the guide pulley sets up more rationally, guarantees that the ability atress of derrick inside casing guide pulley is even, makes the long-term effectual use of derrick. And each angle of the inner frame is provided with a 90-degree double guide wheel. Under the condition that only one guide wheel can be placed on the inner frame base, the guide wheel structure is optimally designed, and the guide wheel support is manufactured again. A steel plate is additionally arranged above the new support, and the other guide wheel can be installed on the steel plate, so that 2 guide wheels can be arranged at each corner of the inner frame, and a structure that the two guide wheels respectively position 2 edges of the angle steel is formed. Therefore, the outer frame guide wheel has enough positions, and the positioning guide wheel can be arranged in two directions. In the newly designed guide wheel structure, a steel plate is added on the guide wheel, and the guide wheel is taken as a base to be provided with another guide wheel.

Drawings

FIG. 1 is a schematic view of a double-layer guide wheel structure of an electromagnetic hoisting derrick.

In the figure: 1. an inner frame; 2. a guide wheel; 3. a guide wheel support; 4. an extension plate.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in figure 1, the invention relates to a double-layer guide wheel structure of an electromagnetic hoisting derrick, which comprises two guide wheels 2 arranged at each corner of an inner frame 1 of the electromagnetic hoisting derrick, wherein the two guide wheels 2 at each corner of the inner frame 1 of the electromagnetic hoisting derrick are respectively arranged at the upper and lower positions of the inner frame 1 or are both arranged at one side of the inner frame 1. The guide wheels 2 of the two guide wheels 2 at each corner of the inner frame 1 of the electromagnetic hoisting derrick are vertically arranged. The inner frame 1 and the outer frame are of a derrick type truss structure formed by splicing angle steels, and the width and the thickness of each angle steel are 120 mm. Two guide pulleys 2 at every angle department of electromagnetism derrick inside casing 1 all set up in one side of inside casing 1, and two guide pulleys 2 are first guide pulley 2 and second guide pulley 2 respectively, and first guide pulley 2 rotates and sets up on guide pulley support 3, and guide pulley support 3 fixed connection is on inside casing 1's surface, two extension boards 4 of fixed connection on the guide pulley support 3, rotate between two extension boards 4 and set up second guide pulley 2.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The double-layer guide wheel structure of the electromagnetic derrick is characterized by comprising two guide wheels arranged at each corner of an inner frame of the electromagnetic derrick, wherein the two guide wheels at each corner of the inner frame of the electromagnetic derrick are respectively arranged at the upper position and the lower position of the inner frame, the guide wheels are used for respectively positioning 2 edges of angle steel, so that the outer frame guide wheels have positions, the positioning guide wheels are arranged in two directions, and each corner of the inner frame is provided with a 90-degree double guide wheel; guide wheel shafts of two guide wheels at each corner of the inner frame of the electromagnetic hoisting derrick are vertically arranged; the guide wheel is rotatably arranged on a guide wheel support, the guide wheel support is fixedly connected to the surface of the inner frame, and the guide wheel is abutted against the outer frame; the inner frame and the outer frame are of a derrick type truss structure formed by splicing angle steels, and the width and the thickness of each angle steel are 120 mm.