CN2328456Y - Large diameter pipeline drilling machine - Google Patents

Abstract

The utility model relates to a large-caliber pipeline driller for drilling on a pipeline for conveying liquid or gas under the condition that conveying work is not stopped so that a branch pipeline is arranged or the pipeline is quickly repaired. The utility model is composed of a power transmission mechanism, an axial feed mechanism, a guiding mechanism and a composite drilling and milling mechanism for solid jacking. The driller and the drilled pipeline are connected into integration through an upper and a lower pipe clamps and screw bolts, therefore, the driller has advantages of stable operation and high drilling precision. Because of adopting a drilling mode of the jacking, cutting output is reduced, and service lives of a sleeve type drill bit and the driller are enhanced. Because a cutting part of the sleeve type drill bit is made of hard alloys, the driller can be used for drilling on pipelines made of cement, cast iron and steel pipes.

Description

The large diameter pipeline drilling machine

The utility model relates to and does not a kind ofly stop it carrying operation to hole on heavy caliber metal, concrete duct, so that the mechanical device of lateral is installed, particularly relates to a kind of large diameter pipeline drilling machine.

Existing tapping machine mainly is to bore milling cutter whole hole is milled into the bits end, so that the engineering time is longer, thereby has shortened the service life of cutter and drilling machine.Complete machine structure complexity, volume be big, heavy, bring great inconvenience for construction, transportation.Along with the improvement of carrying the industry pipeline, pipe of cement, steel pipe increase year by year, multiple pipeline and the cities and towns of depositing are more and more common, and existing tapping machine only is applicable to the cast-iron pipe perforate, be not suitable for the perforate of pipe of cement and steel pipeline, powerless especially to aperture isometrical and more than the Dg200 to the perforate aperture especially greater than the trunk line radius.Deficiency in view of last art mechanical device existence, ZL94227471.7 discloses a kind of cement, cast iron pipe tapping machine, this drilling machine is by a Poewr transmission mechanism, an axial feed mechanism and the compound drill milling mechanism of solid jacking are formed, many deficiencies of traditional tapping machine have been overcome, but still different the having work time vibration be bigger of degree, the shortcoming that stability is not good enough.

The purpose of this utility model is; On ZL94227471.7 tapping machine basis, improve the large diameter pipeline drilling machine of little, the good stability of vibration when a kind of work is provided.

The purpose of this utility model can be retouched to execute and be realized by following technology.It is the Poewr transmission mechanism that this large diameter pipeline drilling machine has comprised the ZL94227471.7 tapping machine substantially, axial feed mechanism and the compound drill milling mechanism of drill bushing material, and on this basis for reducing vibration, improve job stability and set up a guiding mechanism, this guiding mechanism is by crossbeam, lead and leading arm are formed, and crossbeam links with feed screw and lead respectively, leading arm is enclosed within respectively on main shaft and the lead and with reduction box and links, lead one end is fixed on the main spindle box, when adopting an above lead, each lead should be distributed on the same circumference to good.

Fig. 1 is a general structure schematic diagram of the present utility model.

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

Referring to accompanying drawing, at first on by the boring pipeline, adorn pipe clamp 2 and following pipe clamp 1 on one, adorn a gate valve 7 on last pipe clamp 2 tops, then drilling machine and terminal pad 8 are contained in gate valve 7 tops.This drilling machine comprises a Poewr transmission mechanism, an axial feed mechanism, a guiding mechanism and solid, the compound drill milling mechanism of jacking.Poewr transmission mechanism is by motor 20, and gear driving pair 21,22,23, Worm and Worm Gear Driving pair 24,12 and power transmission shaft 27 are formed.During work, as long as connect power supply, motor 20 rotations by driving gear 22, Jie's gear 21, driven gear 23, drive worm screw 24, worm gear 12, drive power transmission shaft 27, shell bit 3 and center and expect that admittedly drill bit 5 rotations cut.Axial feed mechanism is by handwheel 17, and gear driving pair and feed screw nut's transmission are formed.During work, only need shake handwheel 17, driven gear axle 15, feed gear wheel 19, feed screw 25 rotations drive feed nut 14, reduction box 13 and main shaft 28 and move up and down, and realize axial feed.Guiding mechanism is by crossbeam 16, and lead 10 and leading arm 11 are formed.Lead 10 is provided with and is fixed between main spindle box 9 and the crossbeam 16.And crossbeam 16 links with feed screw 25, lead 10 and gear-box 18 respectively, leading arm 11 is enclosed within respectively on main shaft 28 and the lead 10 and with reduction box 13 and links, lead 10 1 ends are fixed on the main spindle box 9, be provided with three leads 10 in the present embodiment, and be distributed on the same circumference.During work, leading arm 11 is along three leads 10, expects drill bit 5 admittedly move down together that along with reduction box 13, main shaft 28, shell bit 3, center control reduction box 13, main shaft 28 rotations realize moving axially.Gu, the compound drill milling mechanism of jacking is by the shell bit 3 that is fixed on power transmission shaft 27 bottoms, and expects that admittedly drill bit 5 forms in its taper hole and by the center that panel nut 6 is reinforced.The center expects that admittedly drill bit 5 heads are provided with automatically solid material pin 4, and the middle part is provided with screw thread and panel nut 6, and with power transmission shaft 27 Joints.During work, after the center expects that admittedly drill bit 5 drills,, material pin 4 is about to the clout piece 30 that cover bores Gu stretching out to hold automatically.When unloading, back out bridge screw, up time rotary pressure plate nut 6, drill bit 5 is expected at the dial-out center admittedly.When connecting power supply, power transmission shaft 27, shell bit 3, center expect that admittedly drill bit 5 rotates together, shake handwheel 17, reduction box 13 joining leading arms 11 are moved down along three leads 10, and drive main shaft 28, shell bit 3, center and expect admittedly that drill bit 5 moves axially together and cut.After centre bore drilled, blow-off pipe 29 promptly had liquid to flow out, and made it with outside the bits end discharge pipe that bores, and the center that is located at simultaneously expects that admittedly the solid material pin 4 of drill bit 5 heads stretches out automatically, holds the clout piece 30 that soon bores.Continue cutting, after shell bit 3 drills, cut off the electricity supply, shake handwheel 17 then, make on the main shaft 28 and move to the extreme higher position.Closing gate valve 7 then, unload drilling machine and terminal pad 8, load onto lateral or rush to repair pipeline to finish.The breakdown gate valve 7 then, and lateral or pipe-repairing can drop into normal conveying, and operation finishes.

In addition, being located at dewatering orifice 26 on the main shaft 28 is to aim at discharging to infiltrate the water in its inner chamber and establish.

The utility model compared with prior art owing to by upper and lower pipe clamp drilling machine is fixed on On the drilled pipeline, it connects reliable; Since increased guiding mechanism, the vibration when having reduced work, Improved job stability; Owing to adopted the mode of jacking boring, greatly reduced cutting output, Service life and the operating efficiency of shell bit and drilling machine have been improved. Owing to adopted nut-screw rod The feeding principle, and screw mandrel is arranged on the power transmission shaft inner chamber, thereby shortened the height of drilling machine, Dwindled the volume of drilling machine. The most parts of the utility model have adopted the light-duty materials such as aluminium alloy Material is made, so that complete machine is in light weight, volume is little, the operation convenient transportation. Because with the bits that bore The end with outside its discharge pipe, has prevented the pollution of pumped (conveying) medium by the pressure of carrying liquid in the pipeline. By Passed through the heat treatment of advanced technologies in the shell bit body, blade has adopted efficient carbide alloy Make, and adopted rational cutting data, therefore, not only prolonged cutter life, and energy To the pipeline boring of cement, cast iron, steel pipe material, widened the scope of application, realized that a machine is many With with the aperture greater than the purpose of trunk line radius to isometrical and big diameter borehole more than the Dg200. This Utility model be particularly suitable for diameter be on the pipeline more than 100 millimeters drill diameter be 100～1000 millimeters hole.

Claims (2)

1, a kind of large diameter pipeline drilling machine, comprise a Poewr transmission mechanism, an axial feed mechanism and the compound drill milling mechanism of drill bushing material, it is characterized in that a guiding mechanism, this guiding mechanism is made up of crossbeam (16), lead (10) and leading arm (11), wherein: crossbeam (16) links with feed screw (25) and lead (10) respectively, leading arm (11) is enclosed within main shaft (28) respectively and lead (10) upward and with reduction box (13) links, and lead (10) one ends are fixed on the main spindle box (9).

2, large diameter pipeline drilling machine according to claim 1 is characterized in that lead (10) is distributed on the same circumference.

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