CN2362629Y

CN2362629Y - Explosion-proof electric holing machine

Info

Publication number: CN2362629Y
Application number: CN 99227922
Authority: CN
Inventors: 焦发兆
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-30
Filing date: 1999-03-30
Publication date: 2000-02-09
Anticipated expiration: 2009-03-30

Abstract

The utility model relates to an anti-explosion electric holing machine, which is composed of a center drill, a trepanning tool, a clamping plate valve, a driving device, a feeding device, and a flange block. The utility model is characterized in that one end of a soft pipe is welded on a joint of a motor, and the other end is fixed on a gear box; the upper part of the gear box is provided with a drilling rod. The trepanning tool and the center drill are arranged at the lower end of the drill rod; the feeding device is engaged with the drill rod by a gear shaft; the clamping plate valve is connected with a machine seat by a connecting disc. The flange block comprises a pressing handle, a sleeve for disassembling and assembling, a connecting handle sleeve, a connecting handle, and a clogging block. The holing machine not only can hole under the condition of low temperature and slow speed on an oil and an air pipes and can prevent explosion effectively, but also has the advantages of compact structure, reasonable layout, stabilization, safety, flexible operation, and convenient maintenance.

Description

The anti-explosion electric tapping machine

The utility model relates to a kind of boring bar tool, specifically a kind of anti-explosion electric tapping machine.Be applicable to mainly on cities and towns fuel feeding, coal gas, the natural gas pipe that stopping transportation not send perforate under the situation of medium, adjunction branched pipe.

Along with the needs that modern city is built, the supply channel in cities and towns, fuel feeding, supply air line often need increase and connect branch road.The patent No. is that " the pipe pressurized tapping machine of efficient metal " utility model patent of 93211575.6 has solved preferably on more efficient ground under the condition of not cutting off the water and carries out perforate on the metallic conduit, and the technical barrier of branched pipe is installed.But, therefore punching the adjunction branched pipe in the inconvenient cement aqueduct because of adopting the method perforate of jacking hole milling.The patent No. is that " cement water delivery pipe racks gland material puncher " utility model patent of 93211574.8 provides a kind of cement aqueduct band gland material puncher, but because motor is directly connected in main frame, thereby volume is big, heaviness and complex structure, fitting operation inconvenience.The patent No. is that 96231391.2 " pipe pressurized electrical tapping machine " adopts the method for grinding perforate, though simple in structure, volume is little, but therefore high-speed grinding is suitable for feed pipe, and is inapplicable to inflammable, explosive oil pipe, tracheae perforate.

The purpose of this utility model provides a kind of employing low temperature, cutting at a slow speed, thus the anti-explosion electric tapping machine of explosion-proof oil pipe, gas pipe, the perforate of natural gas pipe.

The purpose of this utility model is realized by following technical scheme.

The utility model is formed by centre drill, trepanning tool, sandwich valve, transmission device, feed arrangement and flange are stifled, it is characterized in that:

A, described transmission device comprise motor, flexible axle, gear-box and drilling rod, flexible axle one end that is with flexible pipe outward is welded on the electric machine joint, the other end is fixed on the reduction gear box, lower gearbox portion is connected with the drilling rod upper end, trepanning tool is loaded on drilling rod awl end, and the centre drill upper end is fastened on the interior screw thread of drilling rod lower port;

B, the feed arrangement that is fixed on the support comprise handwheel, worm screw, worm gear and gear shaft, and handwheel is loaded on worm screw one end, worm gear and worm engaging, and gear shaft one end is connected in worm gear, drilling rod and gear shaft engagement;

C, the sandwich valve that is fused by tie-plate and support comprise valve block, valve body and spool, the built-in spool of valve body, and its end is connected on the crank of valve body terminal part, and valve body is equipped with valve block outward;

D, described flange blocking package are drawn together pressure handle, dismounting cover, connect sleeve, are connect handle and shutoff, and the pressure handle that handle is equipped with in the upper end passes the dismounting cover and connects sleeve and be connected, and connects handle top cutting ferrule in connecing sleeve, and the bottom is connected in the shutoff by screw.

When need perforate on pipeline, when branched pipe is installed, at first, make Flange Plane vertical with conduit axis with prefabricated pipe and flange welding, sandwich valve is installed on the Flange Plane, again tie-plate and support are connected and fixed with bolt, nut.Trepanning tool is loaded on drilling rod awl end, centre drill screws in the drilling rod hole and tightens, open bleeder valve simultaneously, open motor, drilling rod is fallen, the centre drill drill for high-speed, drilling is evenly carried out in the feeding of slowly falling then lentamente, when in the pipe of having released on the tie-plate during medium discharge, do stop slightly, allow and close bleeder valve after the air emptying in the tapping machine.To be pushed into low or first gear on the gear change hand lever, the perforate trepanning tool cuts, when cutting finishes, the feeding handwheel is reversed, drilling rod rises, and the refuse under " U " type card on the trepanning tool will cut is taken out of, at this moment disable motor, sandwich valve, unload flexible axle, motor, tie-plate, again flange is blocked up and load onto, open sandwich valve to maximum, both hands grip pressure pressure handle, dextrorotation go to revolve motionless till, make that to remove flange behind the tight plug-hole mouth of shutoff more stifled.Standard blind flange on the flange face loam cake is used bolting at last, and the perforate process finishes.

The utility model has the advantages that trepanning tool is done low temperature, cutting has substituted traditional milling and grinding at a slow speed because of adopting, therefore perforate can be prevented exposing to the sun on oil pipe and tracheae, again because of having adopted flange to block the perforate mouth, thereby can prevent in the pipe inflammable effectively, fire dielectric leakage, thus safe and reliable in the construction.

Another advantage of the present utility model is a compact conformation, rationally distributed, good stability, and flexible operation, easy to maintenance.While cutter easy accessibility, the accuracy of alignment height connects solid and reliable.

Fig. 1 is the utility model structural representation.

Fig. 2 is the transmission device schematic diagram.

Fig. 3 is the feed arrangement schematic diagram.

Fig. 4 is the stifled schematic diagram of doing shutoff of flange.

By the following examples, in conjunction with the accompanying drawings, the utility model is done to describe further.

Embodiment:

(referring to Fig. 1-4) outer flexible axle 8 one ends that are with flexible pipe are welded on fire-proof motor 7 joints, and the other end is fixed on the reduction gear box 9, and reduction gear box 9 bottoms are connected with drilling rod 10 upper ends, constitute transmission device 4.Trepanning tool 2 is loaded on drilling rod 10 awl ends, and centre drill 1 upper end is fastened on the interior screw thread of drilling rod 10 lower port.The feed arrangement 5 that is fixed on the support 11 comprises handwheel 12, worm screw 13, worm gear 14 and gear shaft 15, and handwheel 12 is loaded on worm screw 13 1 ends, worm gear 14 and worm screw 13 engagements, and gear shaft 15 1 ends are connected in worm gear 14, the drilling rod 10 of spline-simulating and gear shaft 15 engagements.The sandwich valve 3 that is fused by tie-plate 16 and support 11 comprises valve block 17, valve body 18 and spool 19.Valve body 18 built-in spools 19, its end is connected on the crank 20 of valve body 18 terminal parts.Valve body 18 outer commentaries on classics have valve block 17.The pressure handle 21 that handle 26 is equipped with in the upper end passes dismounting cover 22 and connects sleeve 23 and is connected, connects handle 24 top cutting ferrules in connecing sleeve 23, and the bottom is connected in the shutoff 25 by screw, and the formation flange blocks up 6.Centre drill 1 head is equipped with one " U " type card 27 in addition.One bleeder valve 28 is housed on the tie-plate.

Claims

1, a kind of anti-explosion electric tapping machine is made up of centre drill (1), trepanning tool (2), sandwich valve (3), transmission device (4), feed arrangement (5) and flange stifled (6), it is characterized in that:

A, described transmission device (4) comprise motor (7), flexible axle (8), gear-box (9) and drilling rod (10), flexible axle (8) one ends that are with flexible pipe outward are welded on motor (7) joint, the other end is fixed on the reduction gear box (9), gear-box (9) bottom is connected with drilling rod (10) upper end, trepanning tool (2) is loaded on drilling rod (10) awl end, and centre drill (1) upper end is fastened on the interior screw thread of drilling rod (10) lower port;

B, the feed arrangement (5) that is fixed on the support (11) comprise handwheel (12), worm screw (13), worm gear (14) and gear shaft (15), handwheel (12) is loaded on worm screw (13) one ends, worm gear (14) and worm screw (13) engagement, gear shaft (15) one ends are connected in worm gear (14), drilling rod (10) and gear shaft (15) engagement;

C, the sandwich valve (3) that is fused by tie-plate (16) and support (11) comprise valve block (17), valve body (18) and spool (19), the built-in spool of valve body (18) (19), its end is connected on the crank (20) of valve body (18) terminal part, the outer valve block (17) that is equipped with of valve body (18);

D, described flange stifled (6) comprise pressure handle (21), dismounting cover (22), connect sleeve (23), connect handle (24) and shutoff (25), the pressure handle (21) that handle (26) are equipped with in the upper end passes dismounting cover (22) and connects sleeve (23) and be connected, connect handle (24) top cutting ferrule in connecing sleeve (23), the bottom is connected in the shutoff (25) by screw.

2, anti-explosion electric tapping machine according to claim 1 is characterized in that: described centre drill (1) head is equipped with one " U " type card (27).

3, anti-explosion electric tapping machine according to claim 1 is characterized in that: a bleeder valve (28) is housed on the described tie-plate (16).