CN2206297Y

CN2206297Y - Tap-hole opening machine

Info

Publication number: CN2206297Y
Application number: CN 94219995
Authority: CN
Inventors: 孟凯彪; 殷宝铎
Original assignee: Beijing Iron & Steel Central Research And Disign Inst Ministry Of Metallurgical
Current assignee: Beijing Iron & Steel Central Research And Disign Inst Ministry Of Metallurgical
Priority date: 1994-09-05
Filing date: 1994-09-05
Publication date: 1995-08-30
Anticipated expiration: 2004-09-05

Abstract

The utility model discloses a tap-hole opening machine. The guide frame (15) of the utility model is hinged with two suspenders (6) with adjustable lengths which are fixedly connected with a rotating arm (4), and a drilling mechanism (9) is suspended on the rotating arm (4). A propelling motor (10) which is a radial plunger oil motor with a big torque is installed on the tail of a guide frame (15), the rectilinear movement of a trolley (12) is driven along the guide frame (15) by a driving mechanism (16) for a chain wheel and a chain belt, a drilling machine (11) drills in or backs out, and the drilling machine (11) which is driven is installed on the trolley (12). The drilling machine (11) is the drilling rock drill of standard series, the drilling machine (11) is provided with a purging system, and air streams are sent to the head of a drilling head (20) by a hollow drilling rod (14) and the drilling head (20). The utility model has the advantages that the angles of openings can be adjusted, the speed of stop drilling is fast, and the structure is simple.

Description

Tap-hole opening machine

The utility model relates to a kind of iron perforater, in order to the blast furnace taphole of preparing to tap a blast furnace is opened, blast furnace is in time tapped a blast furnace normally.

Electronic iron perforater of the prior art mainly is made up of revoliving arm, propulsion electric machine, chain drive, dolly, chain sling and electric drill.Revoliving arm is manual, propulsion electric machine, chain drive and dolly all are contained on the revoliving arm, and pushing motor drives the dolly forward-reverse by chain drive, make by chain sling and are hung in also forward-reverse thereupon of electric drill below the dolly, down auxiliary at manpower, finish the tapping outlet task.This machine is simple in structure, is easy to make install.But need the artificial auxiliary boring that aligns during operation; The propulsion electric machine speed adjustable range is little, can not satisfy the requirement of moving back brill fast, fragile drill bit.The duct of being left simultaneously is an arc downward-sloping duct, is unfavorable for the maintenance of iron notch, has increased the resistance when clay gun pushes away mud, can not adapt to the requirement of anhydrous stemming.

Chinese patent CN89202051.2 discloses a kind of iron perforater, and it is mainly by traversing mechanism, hoisting appliance with comprise that the rig mechanism of guide frame, pneumatic motor, dolly and rig forms.Its traversing mechanism adopts band brake electric motor driving, limit switch location, has realized mechanized operation, and the duct of leaving is a straight line, and that has reduced clay gun pushes away the mud resistance, helps the maintenance of iron notch, can adapt to the requirement of anhydrous stemming.Its existing weak point is: blowing angle is a fixed, can not regulate according to the requirement of blast furnace different times; The advance and retreat of rig are driven by pneumatic motor, still have the problem slow, the easy burn-out drill bit of boring of moving back; And this machine equipment is huge, complex structure, manufacturing, installation, maintenance all compare difficulty.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, provides a kind of blowing angle adjustable, and it is fast to move back the drilling speed degree, and iron perforater simple in structure.

The purpose of this utility model can realize by following measure.

A. guide frame is hinged with two length-adjustable suspension rods that are fixed on pivoted arm, and drill mechanism is lifted on the pivoted arm;

B. propulsion motor is installed in the afterbody of guide frame, is the radial plunger large torque oil motor, drives dolly along the guide frame translational motion by the sprocket chain strip transmission mechanism, drives the rig that is installed on the dolly and creeps into or withdraw from;

C. rig is that standard series is crept into rock drill, and it has purge and wash system, the head of air-flow being delivered to drill bit by the drilling rod and the drill bit of hollow.

Traversing mechanism is power with the rotary motor oil, drives the pivoted arm rotation by a pair of transmitting gear that is fixed on respectively on motor output shaft and the pivoted arm pivot.Two buffering locators are as the stopper of pivoted arm, make the drill mechanism that is lifted on below the pivoted arm be stopped at working position or retreating position.

The advantage that the utility model is compared with prior art had is: 1. boom length is adjustable, therefore can regulate the angle and the position of opening easily, satisfy the requirement that blast furnace production changes, 2. propulsion motor adopts the radial plunger large torque oil motor, moment of torsion is big, realizes stepless speed regulation easily, reaches the requirement of slow forward fast backward, move back drilling speed Du Keda 1m/s, avoided the scaling loss of drill bit.3. adopt the rock drill product that has formed standard series as rig, dependable performance, the life-span is long, and the drill ability is strong, is fit to the needs of anhydrous stemming fully.In addition, the purge and wash system that the standard rock drill is had can either blow out spare and can cool off drill bit again, and drill bit is further protected.4. rotary machine adopts rotary motor oil to drive, and by the buffering locator mechanical position limitation, accurate positioning is reliable.5. simple in structure, manufacturing, installation, adjustment, easy to maintenance, simple to operate, safety, in light weight, be applicable to 1000m ³The iron perforater of blast furnace, weight has only 2000kg.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is the structural representation of the utility model iron perforater.

Fig. 2 is the vertical view of iron perforater shown in Figure 1.

Fig. 3 is the drill mechanism of iron perforater shown in Figure 1.

Fig. 4 is the drill bit of iron perforater shown in Figure 1.

Fig. 5 is that the A of Fig. 4 is to view.

As shown in Figure 1, iron perforater mainly is made up of bearing 2, traversing mechanism 3, suspension rod 6 and drill mechanism 9.Traversing mechanism 3 is contained on the bearing 2, and its pivoted arm 4 rotates around bearing 2.Bearing 2 directly is fixed on the last furnace shell 1.Drill mechanism 9 mainly is made up of guide frame 15 and propulsion motor 10, sprocket chain strip transmission mechanism 6, dolly 12, rig 11 and the drilling rod 14, the drill bit 20 that are mounted thereon.Guide frame 15 is hinged with two that are fixed on pivoted arm 4 length-adjustable suspension rods 6, and drill mechanism 9 is lifted on the pivoted arm 4.

Have one section two ends to have the bar 8 of right-and-left threaded bar 7 and two sections and its equipped band nut respectively on every suspension rod 6, revolving bar 7 can be regulated the length of suspension rod 6.

As shown in Figure 2, traversing mechanism 3 is a power with rotary motor oil 21, by being fixed on a pair of transmitting gear 22 on motor 21 output shafts and pivoted arm 4 pivots respectively, driving pivoted arm 4 and rotates.Two buffering locators of being made by the dish spring 5 can be fixed by the bustle pipe of blast furnace as the stopper of pivoted arm 4, and the drill mechanisms 9 that guarantee to be lifted on below the pivoted arm 4 are stopped at working position or retreating position exactly.

Drill mechanism 9 as shown in Figure 3, propulsion motor 10 is installed in the afterbody of guide frame 15, be the radial plunger large torque oil motor, two sprocket wheels of sprocket chain strip transmission mechanism 16 are installed on the output shaft of motor 10 respectively and are positioned on the spring type chain stretching device 17 of guide frame 15 the other ends.Dolly 12 is fitted on the guide frame 15 by the guide wheel 13 of its upside, and rig 11 is installed in the downside of dolly 12.Motor 10 drives dolly 12 along guide frame 15 translational motions by sprocket chain strip transmission mechanism 16, drives rig 11 and creeps into or withdraw from.Guide frame 15 inboard two ends respectively are equipped with two and are set up in parallel the snubber of being made by the dish spring 18 with respect to the position of dolly 12, the shock and vibration that when moving to two ends in order to alleviate dolly 12 with rig 11 guide frame 15 caused.Guide frame 15 front ends are equipped with a backplate 19 of being made by refractory materials, and rig 11 and other devices of being contained in the guide frame 15 are shielded.

What rig 11 adopted is the rock drill that creeps into of sky and water pneumatic machinery factory production, for the standard series product, for 1000m ³The employed iron perforater of blast furnace can adopt the YG2100 type to creep into rock drill.This kind rock drill drill ability is strong, to the perforate and guarantee perforate speed smoothly of hydrous taphole loam and anhydrous stemming.In addition, the purge and wash system that itself had, drilling rod 14 by hollow and drill bit 20 are delivered to the head of drill bit 20 with air-flow, the spare under boring can be blown out, and have cooled off drill bit again.Drilling rod 14 all adopts with drilling rod 14 with rig 11 and drill bit 20 and is threaded.

Drill bit 20 is the four point bit of hollow, shown in Fig. 4,5, with respect to 1000m ³The drill bit of optional its head diameter of the used iron perforater of blast furnace D=60mm.The material of drill bit 20 can adopt at high temperature the 6GrW2Si of higher-strength and hardness alloy tool steel.

When blast furnace was prepared to tap a blast furnace, rotary motor oil 21 actions drove pivoted arm 4 and rotate, and made drill mechanism 9 enter the working position by retreating position.Rig 11 and propulsion motor 10 all start, and rig 11 creeps into along guide frame 15 straight lines.After the iron mouth was opened, propulsion motor 10 reversed rapidly, drove rig 11 and moved back brill with the speed of 1m/s, resetted rig 11 brakings simultaneously until rig 11.Rotary motor oil 21 counter-rotatings drive pivoted arm 4 revolutions, drive drill mechanism 9 and get back to retreating position.

The length of regulating suspension rod 6 can change the angle and the position of drill mechanism 9, makes the angle of opening and position obtain adjusting, and satisfies the needs that the production of different times blast furnace changes.

Claims

1, a kind of iron perforater, have bearing, traversing mechanism and drill mechanism, traversing mechanism is contained on the bearing, its pivoted arm rotates around bearing, bearing directly is fixed on the last furnace shell, drill mechanism mainly is made up of guide frame and propulsion motor, sprocket chain strip transmission mechanism, dolly, rig and the drilling rod, the drill bit that are mounted thereon, it is characterized in that:

A. guide frame [14] is hinged with the two length-adjustable suspension rods [6] that are fixed on pivoted arm [4], and drill mechanism [9] is lifted on the pivoted arm [4];

B. propulsion motor [10] is installed in the afterbody of guide frame [15], is the radial plunger large torque oil motor, drives dolly [12] along guide frame [15] translational motion by sprocket chain strip transmission mechanism [16], drives the rig [11] that is installed on the dolly [12] and creeps into or withdraw from;

C. rig [11] creeps into rock drill for standard series, and it has purge and wash system, the head of air-flow being delivered to drill bit [20] by the drilling rod [14] and the drill bit [20] of hollow.

2, iron perforater according to claim 1, it is characterized in that described traversing mechanism ［ 3 ］ is a power with rotary motor oil ［ 21 ］, drive pivoted arm ［ 4 ］ rotation by a pair of transmitting gear ［ 22 ］ that is fixed on respectively on motor ［ 21 ］ output shaft and pivoted arm ［ 4 ］ pivot, two mechanical damping locating devices ［ 5 ］ are as the stopper of pivoted arm ［ 4 ］, make the drill mechanism ［ 9 ］ that is lifted on below the pivoted arm ［ 4 ］ be stopped at working position or retreating position.

3, iron perforater according to claim 1, it is characterized in that having on the described suspension rod ［ 6 ］ one section two ends to have the bar ［ 8 ］ of right-and-left threaded bar ［ 7 ］ and two sections and its equipped band nut, the length that revolving bar ［ 7 ］ can be regulated suspension rod ［ 6 ］ respectively.