CN102962862A

CN102962862A - PE pipe electric melting saddle type direct-through tapper

Info

Publication number: CN102962862A
Application number: CN201210524084XA
Authority: CN
Inventors: 盛振喜
Original assignee: BENGBU XIN'AO GAS DEVELOPMENT Co Ltd
Current assignee: BENGBU XIN'AO GAS DEVELOPMENT Co Ltd
Priority date: 2012-12-07
Filing date: 2012-12-07
Publication date: 2013-03-13

Abstract

The invention discloses a PE (Polyethylene) pipe electric melting saddle type direct-through tapper. A tool bar sleeve which is in threaded connection with a tool apron penetrates through and is arranged on the tool seat; a tool bar is mounted in the tool bar sleeve; a tool bit is connected to the lower end of the tool bar; a pressing plate is connected to the outer side of the lower end of the tool apron; more than one pipe hoop ring is connected onto the pressing plate; two ends of each pipe hoop ring are connected with the pressing plate; and a discharge opening is formed in the tool apron. When the tapper provided by the invention is in use, the pipe hoop rings are separated from the pressing plate, the pressing plate is arranged at the construction position where the tapping operation is required on the PE pipe and then the pipe hoop rings are enclosed on the PE pipe and two ends of the pipe hoop rings are connected with the pressing plate, so that the whole tapper is fixed on the PE pipe; then the tool bar sleeve is rotated to downwards feed until the tool bit is supported against the pressing plate and the tool bar and the tool bit are rotated to carry out PE pipe tapping operation; and during operation, the tool bar and the tool bit are rotated for drilling while the tool bar sleeve is rotated for feeding, the PE pipe chips retract from a material returning port along with the rotation of the tool bit without being left in the PE pipe. After the construction operation is finished, the subsequent welding can be carried out after the pipe hoops are loosened and the tapper is taken off.

Description

The straight-through hole making drill of PE pipe electric smelting saddle type

Technical field

The present invention relates to the pipeline tapping device, particularly relate to the boring device that a kind of natural gas straight is threaded a pipe.

Background technology

At present, PE pipe electric smelting saddle type leads directly in the perforate construction operation and need stop the supple of gas or steam, then with the residue natural gas in nitrogen blowing and the evacuated tube, use at last the electric drill perforate, carry out electric fusion welding, there is unsafe hidden danger in this electric drill tap operation, wastes time and energy, and is badly in need of a kind of effective safe perforate solution.

Summary of the invention

Purpose of the present invention is exactly to lead directly to the safety problem that exists at construction operation for present PE pipe electric smelting saddle type, provides a kind of PE pipe electric smelting saddle type straight-through hole making drill.

To achieve these goals, the present invention has adopted the straight-through hole making drill of following technical scheme: PE pipe electric smelting saddle type, pass the knife bar cover with its thread connection on one tool rest, in the knife bar cover knife bar is housed, the lower end of knife bar is connected with cutter head, and the outside of tool rest lower end is connected with pressing plate, and the pressing plate first line of a couplet is connected to the pipe garter spring more than, the two ends of pipe garter spring connect with pressing plate, have a discharging opening on the tool rest.

Hole making drill provided by the invention in use, pipe garter spring is separated with pressing plate, place the PE pipe to need the construction location of perforate operation pressing plate, then pipe garter spring is trapped among on the PE pipe and its two ends are connected with pressing plate, whole hole making drill is being fixed on the PE pipe, then rotate the knife bar cover to lower feeding, to cutter head and PE pipe against the time, rotate knife bar and cutter head and carry out PE pipe perforate operation, in the operation, Yi Bian rotate knife bar pack into to, Yi Bian rotate knife bar and cutter head is holed, PE pipe bits rotate with cutter head and withdraw from from material returned mouth, can not remain in the PE pipe.After construction operation is finished, pipe collar is unclamped, take off hole making drill and can carry out follow-up welding.

Of the present invention simple and reasonable for structure, use reliably, replace the electric drill perforate by this hole making drill and can avoid potential safety hazard, realize safe perforate and welding to the PE pipe.

Description of drawings

The structural representation of Fig. 1 one embodiment of the invention;

The sectional structure schematic diagram of Fig. 2 Fig. 1.

The specific embodiment

By reference to the accompanying drawings the present invention is described in further detail below by specific embodiment:

Referring to Fig. 1, Fig. 2

The straight-through hole making drill of PE provided by the invention pipe electric smelting saddle type has a tool rest 4, passes the knife bar cover 3 with its thread connection on the tool rest 4, in the knife bar cover 3 knife bar 2 is housed, and the lower end of knife bar 2 is connected with cutter head 13.The outside of tool rest 4 lower ends is connected with pressing plate 5, and pressing plate 5 is integrated with tool rest 4, and pressing plate 5 first line of a couplet are connected to two pipe garter springs 8, and the two ends of pipe garter spring 8 connect with pressing plate 5.Have a discharging opening 4a on the tool rest 4.

Knife bar 2 upper ends and knife bar overlap and are provided with bearing 14 between 3 upper ends, and knife bar 2 upper ends are by screw 11 crank 12 that has been fixedly connected.Transmission crank 12 can be realized the rotation of knife bar 2.In addition, cover plate 1 is equipped with in the upper end that knife bar 2 stretches out outside bearing 14, the lower end of cover plate 1 and bearing 14 against.

In the present embodiment, pipe garter spring 8 with the connecting mode of pressing plate 5 is: be fixed with on the side of pressing plate 5 and be fixed with double-screw bolt 6 on Connection Block 9, the opposite side, one end of pipe garter spring 8 is installed on the double-screw bolt 6, the first nut 7 is installed on the double-screw bolt 6, one end of pipe garter spring 8 has bolt head 8a, and bolt head 8a passes Connection Block 9 and connects with the second nut 10.

Claims

1.PE the straight-through hole making drill of pipe electric smelting saddle type, it is characterized in that: pass the knife bar cover with its thread connection on the tool rest, in the knife bar cover knife bar is housed, the lower end of knife bar is connected with cutter head, the outside of tool rest lower end is connected with pressing plate, the pressing plate first line of a couplet is connected to the pipe garter spring more than, and the two ends of pipe garter spring connect with pressing plate, has a discharging opening on the tool rest.

2. the straight-through hole making drill of PE according to claim 1 pipe electric smelting saddle type, it is characterized in that: knife bar upper end and knife bar put and are provided with bearing between the end, on the knife bar by the screw crank that has been fixedly connected.

3. PE pipe electric smelting saddle type according to claim 1 leads directly to hole making drill, it is characterized in that: be fixed with on Connection Block, the opposite side on the side of pressing plate and be fixed with double-screw bolt, one end of pipe garter spring is installed on the double-screw bolt, the first nut is installed on the double-screw bolt, one end of pipe garter spring has bolt head, and bolt head passes Connection Block and connects with the second nut.