CN2287244Y

CN2287244Y - Electric drill on pipeline under pressure

Info

Publication number: CN2287244Y
Application number: CN 96231391
Authority: CN
Inventors: 焦发兆
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-08
Filing date: 1996-03-08
Publication date: 1998-08-05
Anticipated expiration: 2006-03-08

Abstract

The utility model relates to an electric tapping machine on a pipeline under pressure. The utility model is composed of a center drill, a hollow drill, a driving device, a feeding device, a gate valve and a pipe clip. The utility model is characterized in that one end of a flexible shaft is welded on a motor joint, and the other end of the flexible shaft is welded on a spline fixed on one side of a gear box; the lower part of the gear box is connected with the upper end of a main shaft, and the center drill and the hollow drill are fixed on the lower end of the main shaft by threaded rods. The feeding device is engaged with a main shaft sleeve which is sheathed on the outside of the main shaft through a gear shaft. The pipe clip comprises an upper pipe clip and a lower pipe clip which are matched. A locking device for regulating and controlling the flexible shaft to turn and position is engaged with the main shaft sleeve by the gear shaft. The utility model has the advantages of simple structure, small volume, convenient use and high efficiency.

Description

Pipe pressurized electrical tapping machine

The utility model relates to a kind of drilling tool, specifically a kind of pipe pressurized electrical tapping machine.Mainly be applicable to press and open holes on the urban water supply pipeline, the adjunction branched pipe.

Along with the needs that modern city is built, the supply channel in cities and towns often need be holed to increase and be connect branch road.The patent No. is that " the pipe pressurized perforator of efficient metal " utility model patent of 932115756 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 because of adopting the method perforate of jacking hole milling, therefore the adjunction branched pipe is punchinged in inconvenience in the cement aqueduct.The patent No. is that " cement water delivery pipe racks gland material puncher " utility model patent of 932115748 provides a kind of cement aqueduct band gland material puncher, thereby but since motor to be directly connected in the main frame volume big, heaviness and complex structure, fitting operation inconvenience.

The purpose of this utility model provides a kind of motor and main frame split, and simple in structure, volume is little, the pipe pressurized electrical tapping machine of grinding formula easy to use.

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

The utility model is made pottery by center drill, hollow drill, transmission device, work feeder, lock and pipe clamp is formed, and it is characterized in that:

A, described transmission device comprise motor, flexible axle, spline, gear-box, main shaft, collar bush and are loaded on the interior locking device of gear-box, flexible axle one end of overcoat flexible pipe is welded on the electric machine joint, the other end is welded on the spline that is fixed on gear-box one side, lower gearbox portion is connected with the main shaft upper end, center drill, hollow drill are fixed in the main shaft lower end by screw rod, and its outer collar bush that is tooth bar shape is placed in outside the main shaft;

B, described work feeder comprise handwheel, pot bar, worm gear and gear shaft, and handwheel is loaded on worm screw one end, worm gear and worm meshing, and gear shaft one end is connected in worm gear, gear shaft and collar bush engagement;

C, described pipe clamp comprise upper and lower pipe clamp, and the last pipe clamp top that the bottom is circular arc has a flange plate, and the following pipe clamp and the last pipe clamp that are circular arc are complementary.

When need perforate on pipeline, when branched pipe is installed, earlier pipe clamp is installed in tapping, in pipe clamp neck pad one rubber seal, tighten in the connection, the bolt of following pipe clamp, pipe clamp and main pipe are close to, after the hydraulic pressure inspection is non-leakage, to go up pipe clamp flange plate end face one standard gate valve will be installed, a land is adorned on gate valve upper flanges dish top, make main frame, gate valve and pipe clamp fuse, and be fixed on the main pipe, open gate valve this moment, valve plate is mentioned highest point, rotate handwheel again, collar bush is moved downward, and the electric machine joint that will connect flexible axle one end when center drill drops to the main pipe tube wall is plugged in motor and starting electrical machinery, and the driven by motor flexible axle rotates, the spline of flexible axle one end drives spline housing, thereby the umbrella gear in the driving gearbox rotates and drives the main shaft rotation, makes the hollow drill that is fixed in the main shaft lower end, center drill rotates, and is rotated further handwheel this moment, center drill continues to descend, begin pipeline is carried out grinding, the foreign material powder that grinding is got off washes away with cooling water, in case that pipeline cuts is logical, the centrifugal jam that the jacking of being cut off is provided with by the center drill head keeps off and falls in the cavity of the tubular hollow drill of drill bit, and can polluted source.

After pipeline was drilled through, the reverse operating handwheel made center drill, hollow drill withdraw from arm one end that gate valve is wanted adjunction together with the jacking of its inside, and closing gate valve unloads perforator again, and the perforate process finishes.

The utility model has the advantages that thereby because of adopting the diamond engineering thin-walled to bore to do hollow drill to change traditional milling be grinding, therefore not only be suitable for the metal tube perforate branched pipe is installed, be applicable to that also the nonmetallic pipe perforate installs branched pipe.Therefore simple in structure because of being connected by flexible axle between motor and main frame again, volume is little, in light weight, and is safe and reliable.Again because of the adjustable flexible axle rotating position of a locking device is arranged in the gear-box, therefore easy to use and work efficiency is high.

Fig. 1 is the utility model structural representation.

Fig. 2 is the transmission device schematic representation.

Fig. 3 is the work feeder schematic representation.

Fig. 4 is the locking device schematic representation.

By the following examples, in conjunction with the accompanying drawings, the utility model is further described.

Embodiment:

(referring to Fig. 1,2,3,4) becomes the collar bush 12 of tooth bar shape to be placed in outside the main shaft 11 outer facing cut, center drill 1, hollow drill 2 are fixed in main shaft 11 lower ends by screw rod, main shaft 11 upper ends are connected in gear-box 10 bottoms, flexible axle 8 one ends of overcoat one flexible pipe are welded on motor 7 joints, and the other end is welded in forms transmission device 3 on the spline 9 that is fixed on gear-box 10 1 sides.The locking screw 22 that is processed into is inserted in the gear-box 10, place the locking screw 22 outer first halfs in the gear-box 10 to overlap a tapped lock sleeve 23, the latter half of clamping sleeve 24 that is with, place outer locking screw 22 ends of gear-box 10 to adorn a handle set 25 that is equipped with handle 21 on it and form a locking device 13, be convenient to regulate the main shaft location.Handwheel 14 is loaded on worm screw 15 1 ends, worm gear 16 and worm screw 15 engagements, gear shaft 17 1 ends are connected in worm gear 16, and gear shaft 17 is formed work feeder 4 with collar bush 12 engagements.Last pipe clamp 18 tops that circular arc is processed in the bottom are provided with a flange plate and the following pipe clamp 19 that is processed into circular arc and are complementary that to be stuck in pipeline when using outer by bolton.Gate valve 5 is loaded on the pipe clamp 6 flange plate end faces.

Claims

1, a kind of pipe pressurized electrical tapping machine is made up of center drill (1), hollow drill (2), transmission device (3), work feeder (4), gate valve (5) and pipe clamp (6), it is characterized in that:

A, described transmission device (3) comprise motor (7), flexible axle (8), spline (9), gear-box (10), main shaft (11), collar bush (12) and are loaded on the interior locking device (13) of gear-box (10), flexible axle (8) one ends that are with flexible pipe outward are welded on motor (7) joint, the other end is welded on the spline (9) that is fixed on gear-box (10) one sides, gear-box (10) bottom is connected with main shaft (11) upper end, center drill (1), hollow drill (2) are fixed in main shaft (11) lower end by screw rod, and its outer collar bush (12) that is tooth bar shape is placed in outside the main shaft (11);

B, described work feeder (4) comprise handwheel (14), pot bar (15), worm gear (16) and gear shaft (17), handwheel (14) is loaded on worm screw (15) one ends, worm gear (16) and worm screw (15) engagement, gear shaft (17) one ends are connected in worm gear (16), gear shaft (17) and collar bush (12) engagement;

C, described pipe clamp (6) comprise upper and lower pipe clamp (18) (19), and last pipe clamp (18) top that the bottom is circular arc has a flange plate, and the following pipe clamp (19) that is circular arc is complementary with last pipe clamp (18).

2, electrical tapping machine according to claim 1 is characterized in that described center drill (1) head is provided with a centrifugal card (20).

3, electrical tapping machine according to claim 1 is characterized in that: the drill bit of described hollow drill (2) is tubular, and the top is provided with several pressure relief vents, studs with the dentation diamond segment on the bead.

4, electrical tapping machine according to claim 1, it is characterized in that: described locking device (13) is made up of handle (21), locking screw (22), lock sleeve (23) and clamping sleeve (24), locking screw (22) inserts in the gear-box (10), its outer first half is with a tapped lock sleeve (23), the latter half of clamping sleeve (24) that is provided with, outer locking screw (22) end of gear-box (10) are equipped with a handle set (25) which is provided with handle (21).