CN218968632U

CN218968632U - Large shaft overhauling, hoisting and positioning device for blast furnace blower

Info

Publication number: CN218968632U
Application number: CN202223231215.3U
Authority: CN
Inventors: 李杨; 王俊光; 马向辉; 马金龙; 侯长波; 魏英豪; 董福新
Original assignee: Beijing Shougang Co Ltd
Current assignee: Beijing Shougang Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-05-05
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a large shaft overhauling, hoisting and positioning device for a blast furnace blower, which comprises a first shell and a second shell, wherein the middle parts of the left side and the right side of the upper end of the first shell are fixedly connected with stop limiters through bolts, and each stop limiter comprises a fixed plate, a rectangular through hole, a supporting rail and a polytetrafluoroethylene plate; the middle part of the left side both sides between first casing and the second casing has pegged graft and has had the fan main shaft, the fixed post roller that has cup jointed in middle part of fan main shaft, the outside fixedly connected with first fan blade of post roller rotates. Through the overall structure of equipment, when the installation fan main shaft is hoisted, observe that the epaxial fan jigger tooth of fan and fan thrust dish of fan get into the U-shaped groove of support rail respectively, guarantee that fan main shaft, first fan blade, second fan blade and other positions do not bump under the circumstances and slowly fall into accurate position, effectively guarantee maintainer and equipment safety.

Description

Large shaft overhauling, hoisting and positioning device for blast furnace blower

Technical Field

The utility model relates to the technical field of blast furnace blowers, in particular to a large shaft overhauling, hoisting and positioning device for a blast furnace blower.

Background

At present, a belt conveyor is widely applied to industrial production, in the process of transporting bulk materials, the blocking or semi-blocking of a connecting chute is easily caused due to overlarge bulk of the materials, sundries in the materials, lost rotation of a lower belt and the like, the material level in the chute is increased, when the rising materials such as large bulk of the materials, wet adhesion and the like cannot trigger a material gushing device, the material gushing device is accordingly disabled, the belt still continues to operate, at the moment, the continuous increase of the inlet material quantity can lead the material to be carried along with return Cheng Pidai after the chute is blocked, the accident is further enlarged, and equipment is damaged; particularly, when the belt conveyor is in a high-altitude environment, when the material returns Cheng Pidai to run, the material easily falls on the ground at a corridor gap and a falling top tensioning position, and personal injury and environmental pollution accidents below are further caused, so that the large shaft overhauling, hoisting and positioning device for the blast furnace blower is provided.

Disclosure of Invention

The utility model aims to provide a large shaft overhauling, hoisting and positioning device for a blast furnace blower, which is used for observing that a blower disc gear and a blower thrust disc on a blower main shaft respectively enter U-shaped grooves of a support rail when the blower main shaft is hoisted and installed, so that the blower main shaft, a first blower blade, a second blower blade and other parts can slowly fall into accurate positions under the condition of no collision, and the safety of overhaulers and equipment is effectively ensured.

The utility model discloses a large shaft overhauling and hoisting positioning device for a blast furnace blower, which adopts the technical scheme that the large shaft overhauling and hoisting positioning device for the blast furnace blower comprises a first shell and a second shell, wherein the middle parts of the left side and the right side of the upper end of the first shell are fixedly connected with stop limiters through bolts, and the stop limiters comprise fixing plates, rectangular through holes, supporting rails and polytetrafluoroethylene plates;

the middle part of the left side both sides between first casing and the second casing has pegged graft and has had the fan main shaft, the fixed post roller that has cup jointed in middle part of fan main shaft, the outside fixedly connected with first fan blade of post roller rotates, the inboard middle part fixedly connected with second fan blade of first casing and second casing.

As the preferable scheme, the left and right sides of fan main shaft has fixedly cup jointed fan jigger tooth and fan thrust dish respectively, fan jigger tooth and fan thrust dish are all connected in the support track of stopping the stopper.

As the preferred scheme, the fixed plate of stopping the stopper all passes through bolt fixed connection in the upside middle part left and right sides of first casing, open at the middle part of fixed plate has the rectangle through-hole, the fixed plate is at the rear end fixedly welded with support rail of rectangle through-hole, the inside wall of support rail all is through bolt fixedly connected with polytetrafluoroethylene board.

As a preferable scheme, the first fan blades and the second fan blades are in staggered insertion connection.

Preferably, the upper end of the fan jigger tooth and the fan thrust disc is positioned in the middle of the left side wall of the lower end of the second shell.

The utility model discloses a large shaft overhauling, hoisting and positioning device for a blast furnace blower, which has the beneficial effects that:

through the overall structure of equipment, when the installation fan main shaft is hoisted, technical personnel are required to be arranged at two ends of the fan main shaft respectively to observe, and fan jigger teeth and fan thrust discs on the fan main shaft are observed to respectively enter U-shaped grooves of a supporting rail, so that the fan main shaft, the first fan blade, the second fan blade and other parts can be guaranteed to slowly fall into accurate positions under the condition that collision does not occur, and the safety of maintenance personnel and equipment is effectively guaranteed.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is a block diagram of the stop block of the present utility model;

fig. 3 is a cross-sectional view of a support rail of the present utility model.

In the figure: the novel fan blade comprises a first shell, a 2 stop limiter, a 21 fixing plate, a 22 rectangular through hole, a 23 supporting rail, a 24 polytetrafluoroethylene plate, a 3 second shell, a 4 fan spindle, a 5 fan thrust disc, a 6 fan turning gear, a 7 second fan blade and an 8 first fan blade.

Detailed Description

The utility model is further illustrated and described below in conjunction with the specific embodiments and the accompanying drawings:

referring to fig. 1-3, the present utility model: the utility model provides a blast furnace air-blower large shaft overhauls hoist and mount positioner, includes first casing 1 and second casing 3, and first casing 1 and second casing 3 lateral wall are fixed through the bolt, the upper end left and right sides middle part of first casing 1 all is connected with through the bolt fixedly and ends when stopper 2, ends when stopper 2 includes fixed plate 21, rectangle opening 22, support rail 23 and polytetrafluoroethylene board 24;

the middle part of the left side both sides between the first casing 1 and the second casing 3 has pegged graft and has had fan main shaft 4, the fixed post roller that has cup jointed in middle part of fan main shaft 4, the outside fixedly connected with first fan blade 8 of post roller rotates, the inboard middle part fixedly connected with second fan blade 7 of first casing 1 and second casing 3.

As shown in fig. 1: the left side and the right side of the fan main shaft 4 are respectively fixedly sleeved with a fan turning gear 6 and a fan thrust disc 5, and the fan turning gear 6 and the fan thrust disc 5 are connected inside a supporting track 23 of the stop limiter 2.

As shown in fig. 2 and 3: the fixed plate 21 of stopping limiter 2 is all through bolt fixed connection in the left and right sides in the upside middle part of first casing 1, rectangular through-hole 22 has been opened at the middle part of fixed plate 21, fixed plate 21 is fixed welding at the rear end of rectangular through-hole 22 has support rail 23, the inside wall of support rail 23 is all through bolt fixed connection's polytetrafluoroethylene board 24, and polytetrafluoroethylene board 24 is buffer.

As shown in fig. 1: the first fan blades 8 and the second fan blades 7 are arranged in a staggered and spliced mode.

As shown in fig. 1: the upper end of the fan jigger teeth 6 and the fan thrust disk 5 are positioned in the middle of the left side wall of the lower end of the second shell 3.

Principle of: when the equipment is overhauled, the first shell 1 and the second shell 3 are disassembled through an external tool, then the second shell 3 is taken down, and then the fan main shaft 4 can be disassembled through an external hoisting device;

after the maintenance of the fan main shaft 4 is finished, when the fan main shaft 4 is installed, the fan main shaft 4 is lifted by an external lifting device, the inside of a U-shaped groove of the fixed support rail 23 is buffered by a polytetrafluoroethylene plate 24, the incision of the U-shaped groove is selected to be larger, the gap of the cutting outlet of the U-shaped groove is selected to be smaller, and after detection and coordination measurement of all parts, the coordination gap of the final cutting outlet of the U-shaped groove is +/-1 mm; selecting plus or minus 2.5mm of fit clearance of the U-shaped groove cutting opening; the device gradient of the support rail 23 is 0.05 (2.5 mm/50 mm), technicians need to be arranged at two ends of the fan main shaft 4 to observe during hoisting, the fan jigger teeth 6 and the fan thrust disc 5 on the fan main shaft 4 are observed to enter the U-shaped grooves of the support rail 23 respectively, the fan main shaft 4, the first fan blade 8, the second fan blade 7 and other parts are guaranteed to fall into accurate positions slowly under the condition that collision does not occur, and the safety of maintenance personnel and equipment is effectively guaranteed.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. The utility model provides a blast furnace air-blower large shaft overhauls hoist and mount positioner, includes first casing (1) and second casing (3), its characterized in that: the middle parts of the left side and the right side of the upper end of the first shell (1) are fixedly connected with a stop limiter (2) through bolts, and the stop limiter (2) comprises a fixed plate (21), a rectangular through hole (22), a support rail (23) and a polytetrafluoroethylene plate (24);

the novel fan comprises a first shell (1) and a second shell (3), wherein a fan main shaft (4) is inserted into the middle of the two sides of the left side between the first shell and the second shell, a rotating column roller is fixedly sleeved in the middle of the fan main shaft (4), a first fan blade (8) is fixedly connected to the outer side of the rotating column roller, and a second fan blade (7) is fixedly connected to the middle of the inner side of the first shell (1) and the middle of the inner side of the second shell (3).

2. The blast furnace blower large shaft maintenance lifting positioning device according to claim 1, wherein: the left side and the right side of the fan main shaft (4) are respectively fixedly sleeved with a fan turning gear (6) and a fan thrust disc (5), and the fan turning gear (6) and the fan thrust disc (5) are connected inside a supporting track (23) of the stop limiter (2).

3. The blast furnace blower large shaft maintenance lifting positioning device according to claim 1, wherein: the fixed plate (21) of stopping limiter (2) is all through bolt fixed connection in the left and right sides in the upside middle part of first casing (1), rectangular through-hole (22) have been opened at the middle part of fixed plate (21), fixed plate (21) are fixed welding at the rear end of rectangular through-hole (22) have support rail (23), the inside wall of support rail (23) is all through bolt fixedly connected with polytetrafluoroethylene board (24).

4. The blast furnace blower large shaft maintenance lifting positioning device according to claim 1, wherein: the first fan blades (8) and the second fan blades (7) are in staggered connection.

5. The blast furnace blower large shaft maintenance lifting positioning device according to claim 2, wherein: the upper end of the fan jigger tooth (6) and the fan thrust disc (5) is positioned in the middle of the left side wall of the lower end of the second shell (3).