CN2352291Y

CN2352291Y - Self-advancing type manual pipeline boring holes machine

Info

Publication number: CN2352291Y
Application number: CN 98244320
Authority: CN
Inventors: 康中禄; 程绪高
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-22
Filing date: 1998-09-22
Publication date: 1999-12-08
Anticipated expiration: 2008-09-22

Abstract

The utility model relates to a self-advancing type manual pipeline driller. The utility model is composed of a driller body and a pipe clamp with a ball valve. The body is fixed on the pipe clamp when the body drills. The principal cutting movement of the driller body is obtained by driving a main shaft to rotate by a ratchet wheel wrench. The automatic feed movement of the main shaft is obtained by the method that the transmission of two pairs of gears with different numbers of teeth arranged on the main shaft generates differential motion so that the main shaft for a screw mandrel is rotated simultaneously. Therefore, the problem of leading a branch pipe passage under the condition that medium conveyance is not stopped in a metal pipeline is solved. The utility model has the advantages of compact structure, simple and convenient operation and reliable performance. The utility model can be widely applied to various pipelines for trepanning and leading the branch pipe passage, and can be especially applied to pipelines with small calibers.

Description

The manual pipeline drilling machine of self-advancing type

The utility model relates under a kind of situation that does not stop pumped (conveying) medium in metallic conduit inside and draws the special-purpose tapping equipment that connects branch line.

In urban water supply, coal gas and petroleum chemical industry, use the metallic conduit pumped (conveying) medium, when needs are set up branch line, two kinds of methods commonly used, the firstth, stop the medium transport of trunk line inside earlier, cut off a section in the trunk line then, three-way pipe is installed therein, drawing of branched pipe of enforcement connects, the weak point of its existence is, at first will stop the medium transport of trunk line, secondly is that the construction operation amount is big, inconvenient operation, and installation process complexity.Second kind is the conveying that does not stop the pipe interior medium, drilling and tapping on pipeline, mounted valve, its weak point is, drilling machine complex structure, axis feeding adopt the directly mode of compressing main axle moving, can't be when manual operation, control its amount of feeding, simultaneously, drilling and tapping, mounted valve on trunk line, and tapping can't guarantee the screw thread quality, insufficient strength then after the corrosion of screw thread position, can't be changed valve and stays hidden danger to trunk line.

Its purpose of the utility model just is to provide under a kind of situation that does not stop pumped (conveying) medium at pipe interior draws the boring device that connects branch line.

The technical scheme that realizes above-mentioned purpose and take is, drawing the adapter card by drilling machine body and branched pipe forms, body is fixed on the pipe clamp, body comprises main shaft, be installed in the ratchet wrench of main shaft upper end, be installed in the drill bit of main shaft lower end, plate moves ratchet wrench, makes main axis rotation, drill bit obtains principal cutting movement, and travelling gear and body, main shaft connects gear Z1 through being absorbed in flat key, and gear Z1 connects gear Z2, gear Z2 is coaxially installed with gear Z3, gear Z3 connects the gear Z4 that is installed on the main shaft, and gear Z4 is with internal thread and is connected on the main shaft screw mandrel gear Z1, Z4 is coaxial with main shaft, and the number of teeth is inequality, the rotating speed difference produces differentially, makes the screw mandrel main shaft obtain auto-feed under differential action in rotation.

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing is the structural representation of this device.

Realize that pipeline tapping requires the boring main frame to finish two kinds of motions, a kind of is rotatablely moving of main frame main shaft, and a kind of is that main shaft is finished the feed motion to the tube wall vertical direction in rotation.

Boring main frame body comprises main shaft 2, be installed in the ratchet wrench 1 of main shaft 2 upper ends, be installed in the drill bit 8 of main shaft 2 lower ends, pull ratchet wrench 1, make main shaft 2 rotations, drill bit 8 obtains principal cutting movement, the main frame body also comprises travelling gear and body, main shaft 2 connects gear Z1 (14) through being absorbed in flat drill 15, gear Z1 (14) connects gear Z2 (4), gear Z2 (4) is coaxially installed with gear Z3 (12), and gear Z3 (12) connects the gear Z4 (13) that is installed on the main shaft 2, and gear Z4 (13) is with internal thread and is connected on the main shaft screw mandrel 2, gear Z1 (14), Z4 (13) is coaxial with main shaft 2, and the number of teeth is inequality, and the different generations of rotating speed are differential, makes screw mandrel main shaft 2 obtain auto-feed under differential action in rotation.

Threaded gear Z4 (13) reverses when preventing that the worker from advancing, and is equipped with ratchet mechanism 5,6 outside its sprocket gear Z3 (12) lower end

For realizing the main shaft F.F., rewind down, gear Z2 (4), Z3 (12) are equipped with on the handle 3 and draw key 7 and arc stage clip 16 through the hollow shaft 17 coaxial handles 3 that are equipped with, and gear Z (12) has keyway on the interior garden, when handle 3 is upwards pulled out, draw key 7 to may be stuck under stage clip 16 effect gear Z3 (12) in the keyway of garden, make gear Z3 (12) fixing, at this moment plate moves ratchet wrench 1, main shaft 2 can be realized fast rotational, finishes F.F., rewind down.

As follows in its operation principle of embodiment, through clip 11 pipe clamp 9 is fixed on the pipeline 18, fixing ball valve 10 is equipped with in its upper junction plate and pipeline 18 junctions, the pipe clamp 9 that promptly has ball valve, connect with trunk line 18 by clip 11, sealing gasket is equipped with in pipe clamp 9 bottom surfaces, and making it has good sealing effectiveness with trunk line 18.

The drilling machine body is fixed on the pipe clamp 9 of dribbling valve, opens ball valve 10, and plate moves ratchet wrench 1, makes main shaft 2 rotations, and drill bit 8 obtains principal cutting movement.

Differential screw body has been adopted in feed motion, when main shaft 2 rotations, be absorbed in flat key 15 driven gear Z1 (14), Z2 (4), Z3 (12), Z4 (13) rotation, because gear Z4 (13) has internal thread, its number of teeth difference, the rotating speed difference produces differentially, makes main shaft 2 obtain feed motion under differential action in rotation.

When F.F., rewind down, outwards pull out handle 3, gear Z2 (4) and gear Z1 (14) are thrown off, draw key 7 this moment with moving on the handle 3, draw key 7 under the effect of stage clip 16, to may be stuck in the gear Z3 (12) in the keyway of garden, gear Z3 (12) is fixed on the hollow shaft 16, gear Z4 (13) can't be moved, be that the feed screw nut does not change, the moving ratchet spanner 1 of forward and reverse plate this moment, main shaft 2 obtains to keep away soon or the rewind down function.

When splitting greater than Dg50～100 apertures, this machine is provided with the connection seat annex of main shaft and tangential hold down gag, common pipe clamp of external application and standard gate valve, with connection seat with after the standard gate valve connects, load onto rig, utilize the rig F.F., rewind down and worker advance duty cycle function, have enlarged the function of use of rig.

Compared with prior art this device has the following advantages

1, owing to adopted the differential feed mechanism of moving forward of main shaft screw mandrel, thereby has the auto-feed merit Can, dependable performance.

2, because this machine has adopted the kind of drive of gear associated mode, thereby compact conformation, and Simple, convenient.

3, because the pipe clamp of this device is the pipe clamp of valve of dribbling, thereby there is not the problem of changing valve, just do not have the problem that to stay hidden danger to trunk line yet.

Claims

1, the manual pipeline drilling machine of a kind of self-advancing type, drawing adapter card (9) by drilling machine body and branched pipe forms, body is fixed on the pipe clamp (9), body comprises main shaft (2), be installed in the ratchet wrench (1) of main shaft (2) upper end, be installed in the drill bit (8) of main shaft (2) lower end, plate moves ratchet wrench (1), make main shaft (2) rotation, drill bit (8) obtains principal cutting movement, and travelling gear and body, it is characterized in that main shaft (2) connects gear Z1 (14) through being absorbed in flat key (15), gear Z1 (14) connects gear Z2 (4), the coaxial gear Z3 (12) that is installed in of gear Z2 (4), gear Z3 (12) connects the gear Z4 (13) that is installed on the main shaft (2), and gear Z4 (13) is with internal thread and is connected on main shaft (2) screw mandrel gear Z1 (14), Z4 (13) is coaxial with main shaft (2), and the number of teeth is inequality, the rotating speed difference produces differentially, makes screw mandrel main shaft (2) obtain auto-feed under differential action in rotation.

2, the manual pipeline drilling machine of a kind of self-advancing type according to claim 1 is characterized in that, is equipped with ratchet mechanism (5), (6) outside gear Z3 (12) lower end, and threaded gear Z4 (13) reverses when preventing that the worker from advancing.

3, the manual pipeline drilling machine of a kind of self-advancing type according to claim 1, it is characterized in that, gear Z2 (4), Z3 (12) are through the coaxial handle (3) that is equipped with of hollow shaft (17), be equipped with on the handle (3) and draw key (7) and arc stage clip (16), gear Z3 (12) has keyway on the interior garden, when shaking hands (3) when upwards pulling out, draw key (7) to may be stuck in the keyway of the interior garden of gear Z3 (12), make gear Z3 (12) fixing.

4, the manual pipeline drilling machine of a kind of self-advancing type according to claim 1, it is characterized in that, through clip (11) pipe clamp (9) is fixed on the pipeline (18), fixing ball valve (10) is equipped with in its upper junction plate and pipeline (18) junction, and promptly pipe clamp (9) is the pipe clamp of dribbling valve.