CN2067618U

CN2067618U - Dual-purpose big-caliber tube holing machine operated by electricity or hand

Info

Publication number: CN2067618U
Application number: CN 90212712
Authority: CN
Inventors: 焦发兆; 刘英爵
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-05-30
Filing date: 1990-05-30
Publication date: 1990-12-19

Abstract

The utility model discloses a dual-purpose big-caliber tube holing machine operated by electricity or hand, which is used for drilling holes and milling holes on a liquid transmission pipeline to facilitate the installation of the branch pipelines, and is characterized in that the dual-purpose big-caliber tube holing machine operated by electricity or hand is composed of a swirl gear, a power transmission mechanism and an axial feed mechanism. The swirl gear can force the center of the main shaft to generate the radial displacement, and revolves around the center of the original main shaft along with a worm wheel whose inner bore is eccentric of the swirl gear to meet the holing needs of different bore diameters. The dual-purpose big-caliber tube holing machine operated by electricity or hand has the advantages of stable operation, simple operation, rapid construction, low labor intensity, etc. The dual-purpose big-caliber tube holing machine operated by electricity or hand is especially suitable for the pipeline whose diameter is 100-1200 millimeters, and is suitable for holing the bore whose diameter is 50-200 millimeters.

Description

Dual-purpose big-caliber tube holing machine operated by electricity or hand

The utility model relate to a kind of carry on the pipeline of liquid bore, hole milling is so that install the device of lateral, particularly relates to a kind of electronic, dual-use manual large diameter pipeline tapping machine.

In prior art, find United States Patent (USP), its patent No. is 3870064 relevant with the utility model, it is the operate as normal that does not stop pipeline under pressure, carries out drilling and tapping to connect branch pipe(tube).But when this tapping machine is fixed on the pipe, only depend on a chain, thereby when work is very unstable, be difficult to guarantee borehole accuracy, and,, can only be used for common water supply industry because sealing effectiveness is bad, transport pipeline to other liquid such as oil, chemical industry but is willing and yet unable to help, and is powerless especially to the perforate of large diameter pipeline.In addition, existing both at home and abroad on large diameter pipeline the equipment of perforate adopt the wheel cutter nest cutting more, cutter is that cambered surface point contacts with pipeline, this interrupted cut can make cutter and pipe fitting bump, and consequently breaks cutter, so is difficult to wide popularization and application.

It is a kind of on the pipeline of carrying liquid that the purpose of this utility model provides in order to overcome above-mentioned the deficiencies in the prior art part just, do not stop the operate as normal of pipeline, and perforate thereon is so that install electronic, the dual-use manual large diameter pipeline tapping machine of lateral.

The purpose of this utility model can realize by following technical measures.That is: adorn the pipe clamp of a strap brake valve on by the pipeline of perforate, in a side of last pipe clamp, adorn a ball valve that is connected with blow-off pipe, electronic, dual-use manual large diameter pipeline tapping machine then is contained in pipe clamp top, and by the bolt Joint.Of the present utility modelly be characterised in that (this mechanism can make alignment of shafts generation radial displacement and with the revolution of wherein worm gear to a slew gear, mill the needs in different apertures to satisfy to bore), an axial feed mechanism, a Poewr transmission mechanism, wherein:

One. slew gear is by being contained in chassis cavity, its endoporus is eccentric worm gear, worm screw, the thrust ball bearing that is contained between worm gear step end face and the casing inner face is formed with the eccentric bushing that is contained in the worm gear inner chamber and with the handwheel of worm screw key connecting, and main shaft inserts in the eccentric trepanning.

Two. axial feed mechanism is by the worm gear that is contained in worm gear case inner chamber middle part, worm screw, with the worm gear key connecting and with the swivel nut eccentric bushing thread connection and that connect with main shaft by collar, with the handwheel composition of worm screw key connecting.

Three. Poewr transmission mechanism is by the worm gear that is contained in worm gear inner chamber top, and worm screw with the worm gear splined, connects with main shaft key and limits the hub splines of its axial location by nut, and forms with the joining motor of the external part of screw rod.In addition, boring milling cutter links by pull bar and nut and main shaft.

During this machine work, should on by the perforate pipeline, bore an aperture earlier, the milling cutter that bores milling cutter is partly dropped to by the wall thickness position of perforate, and its endoporus is eccentric worm gear rotation in the driving slew gear, forces eccentric bushing to drive the main shaft radial displacement, ovalisation is milled in the hole, then eccentric bushing and worm gear are fixed into one, shake handle again, make the worm drive worm gear rotation of key connecting with it, thereby main shaft is revolved round the sun with worm gear again on the basis of original rotation, the hole is milled expand to required size.

Accompanying drawing is a general structure schematic diagram of the present utility model.

Below in conjunction with accompanying drawing concrete structure of the present utility model and working condition are further described.

Referring to accompanying drawing, at first on by the pipeline of perforate, adorn a upper and

lower pipe clamp

30,32, side at last pipe clamp has a gate valve 35, opposite side is adorned a ball valve 17 that is connected with blow-off pipe 18, then that the utility model is electronic, dual-use manual large diameter pipeline tapping machine is contained in pipe clamp 30 tops, this machine is characterised in that a slew gear, an axial feed mechanism and a Poewr transmission mechanism.Slew gear is eccentric worm gear 26 by its endoporus of casing 29 inner chambers that are contained in gusset piece 3 tops, worm screw 28, be contained in the thrust ball bearing 27 between worm gear 26 step upper surfaces and casing 29 inner faces, be contained in the eccentric bushing 25 of worm gear 26 inner chambers, and form with the handwheel 15 of worm screw 28 key connecting.In addition, main shaft 10 inserts in eccentric bushing 25 holes.In this mechanism, the rotation that the purpose of establishing thrust ball bearing 27 is to guarantee worm gear 26 flexibly and improve the rigidity of this machine; It is cylindric that eccentric bushing 25 tops have screw thread, middle part that step, bottom are arranged, and have an eccentric amount e between the axial line of its endoporus axial line and lower circumference, the step at eccentric bushing 25 middle parts is to combine as a whole with worm gear 26 for the ease of making it under the effect of pressing handle 13.Axial feed mechanism is by the worm gear 20, the worm screw 19 that are contained in worm gear case 23 inner chambers middle part, with worm gear 20 key connecting and with eccentric bushing 25 thread connection and by collar and main shaft 10 joining swivel nuts 24, form with the handwheel 6 of worm screw 19 key connecting, when driving handwheel 6, make worm screw 19 drive worm gears 20 and during with swivel nut 24 rotations of worm gear 20 key connecting, swivel nut 24 just can be realized axial feed thereby drive joining main shaft 10 along the back-out that is threaded on eccentric bushing 25 tops.Poewr transmission mechanism is by the worm gear 22 that is contained in worm gear case 23 inner chamber tops, worm screw 21, with worm gear 22 splined, with hub splines 12 main shaft 10 key connecting and limit its axial location by nut 11, and form with the joining motor of the external part of worm screw 21 8, as long as one connects power supply, just can order about main shaft 10 rotations, cut.In addition, dial 33, worm gear case 23 are pressed on respectively on worm gear 26, eccentric bushing 25 end faces by pressing handle 13, scale pressing plate 14; Boring milling cutter 5 links with main shaft 10 by pull bar 34, nut 9.

According to above-mentioned electronic, the dual-use manual large diameter pipeline tapping machine that assembles, its operation instruction is as follows:

One. the handwheel 1 of gate valve 35 is rotated counterclockwise on earth, gate valve tongue piece 2 is withdrawed from by the position of perforate, open ball valve 17, blow-off pipe 18 is put into gives allocation, connect power line 7, make motor 8 work,, make worm gear 22 drive hub splines 12, main shaft 10 and bore milling cutter 5 and turn clockwise by joining worm screw 21; Two. unclamp pressing handle 13 counterclockwise, shake handwheel 15,0 graduation mark on the scale pressing plate 14 is aimed at 0 graduation mark on the dial 33, the brill milling cutter is positioned at by the perforate center, clockwise then tightening handle 13; Three. shake axial feed clockwise and abnormal sound do not occur and be advisable, after hole drill is logical, blow-off pipe 18 promptly has liquid to flow out, adjust the open amount of ball valve 17 this moment, discharge capacity is reduced to make to bore and mill the bits that get off and fail from blow-off pipe 18, to discharge and be advisable, after hole drill is logical, shake handwheel 6 slowly, milling cutter partly is in by the wall thickness position of perforate; Four. unclamp pressing handle 13 counterclockwise, shake handwheel 15, make scale pressing plate 14 move and aim on the dial 33 with the corresponding graduation mark of institute perforate footpath specification, then with pressing handle 13 tightenings, thereby scale pressing plate 14 is fixed as one dial 33, worm gear case 23, worm gear 26, eccentric bushing 25, continue to shake clockwise the handwheel 15 of slew gear, drive worm gear 26 rotations (being pressed in the also rotation thereupon of each part on worm gear 26 tops), thereby force main shaft 10 with worm gear 26 revolution, make and bore milling cutter, reach the purpose of perforate around by one week of perforate tube wall milling; Five. after hold successfully in the hole, must cut off the electricity supply, and make the brill milling cutter be returned to initial position, clockwise rotate the handwheel 1 of gate valve 35 again, tongue piece 2 is closed, and this moment, blow-off pipe 18 answered no liquid to overflow, and unloaded ball valve 17, load onto plug, take off electronic, dual-use manual large diameter pipeline tapping machine and gusset piece 3, utilize and nut 4 joining screw rods, load onto lateral, the breakdown gate valve 35 then, but just normal operation input of lateral.

The utility model preferably with electronic be good, really needing under the power free again situation of perforate, can unclamp nut 11, unload hub splines 12, replace spare part light cover (not shown), load onto locknut 11, on main shaft 10, put the ratchet spanner, can manually order about and bore the milling cutter rotation, all the other structures and method of operating can be finished perforate work with above-mentioned.

The utility model compared with prior art owing to will be milled by brill by the perforate part, makes it all to become the bone end, can by in the pipeline with the liquid of pressure with outside its discharge pipe, the composite drill milling cutter is that high-speed tool steel is made in addition, so long service life, working stability, perforate precision height. In addition, this machine is not only available electronic, also available manually, not only can perforate on large diameter pipeline, and can be used for perforate on the pipeline of littler latus rectum, have practically, applied widely, labour intensity is low, construction fast, the characteristics such as convenient are specially adapted to open the hole that diameter is the 50-200 millimeter on the pipeline that diameter is the 100-1200 millimeter.

Claims

1, a kind of electronic, dual-use manual large diameter pipeline tapping machine is characterized in that a slew gear, an axial feed mechanism, and a Poewr transmission mechanism, wherein:

A. slew gear is eccentric worm gear 26 by its endoporus of casing 29 inner chambers that are contained in gusset piece 3 tops, worm screw 28, be contained in thrust ball bearing 27 and the eccentric bushing 25 that is contained in worm gear 26 inner chambers between worm gear step end face and casing 29 inner faces, and form with the handwheel 15 of worm screw 28 key connecting, in addition, main shaft 10 inserts in eccentric bushing 25 holes;

B. axial feed mechanism is by the worm gear 20 that is contained in worm gear case 23 inner chambers middle part, and worm screw 19 with worm gear 20 key connecting and with eccentric bushing 25 thread connection and by collar and main shaft 10 joining swivel nuts 24, is formed with the handwheel 6 of worm screw 19 key connecting;

C. Poewr transmission mechanism is by the worm gear 22 that is contained in worm gear case 23 inner chamber tops, worm screw 21, with worm gear 22 splined, with main shaft 10 key connecting and limit the hub splines 12 of its axial location by nut 11, and form with the joining motor 8 of the external part of worm screw 21;

D. dial 33, worm gear case 23 are pressed on respectively on worm gear 26, eccentric bushing 25 end faces by pressing handle 13, scale pressing plate 14; Boring milling cutter 5 links with main shaft 10 by pull bar 34, nut 9.

2, according to described electronic, the dual-use manual large diameter pipeline tapping machine of claim 1, it is characterized in that screw thread is arranged at eccentric bushing 25 tops, there is step at the middle part, and the bottom is cylindric, and between the axial line of its endoporus axial line and bottom cylinder one eccentric distance e is arranged.