CN201604126U

CN201604126U - Pipe thread extraction device

Info

Publication number: CN201604126U
Application number: CN2010201208540U
Authority: CN
Inventors: 吴宝森
Original assignee: Harbin Aircraft Industry Group Co Ltd
Current assignee: Harbin Aircraft Industry Group Co Ltd
Priority date: 2010-03-02
Filing date: 2010-03-02
Publication date: 2010-10-13
Anticipated expiration: 2020-03-02

Abstract

The utility model relates to a thread extraction device for extracting a pipe thread broken inside threads. The thread extraction device comprises an outer sleeve, a steel sheet, a jacking block and a tapered shaft, wherein the outer sleeve is cylindrical; oblate grooves are formed in the circumferential direction of the outer sleeve; a threaded hole is processed on the end surface of one end of the outer sleeve; a square boss is formed at the other end of the outer sleeve; an unthreaded hole is formed in the center of the outer sleeve; a threaded hole is processed along the center of the outer sleeve; the tapered shaft is positioned in the unthreaded hole; a threaded shaft is arranged on one end of the tapered shaft; an optical shaft is arranged at the other end of the tapered shaft; a square pillar is arranged at one end of the optical shaft; the optical shaft is transmitted with the threaded shaft through the tapered shaft; the jacking block is positioned in the oblate groove; the steel sheet is positioned on one side of the jacking block and takes a shape of a circular arc; the jacking block is oblate; teeth are processed at the upper end of the jacking block; a circular arc inwardly concaved is formed at the lower end of the jacking block; and the upper surface and the lower surface of the jacking block form included angles of 1.5 to 2 degrees with the upper surface of the steel sheet in the length direction. The device has the advantages of convenient and fast use and high efficiency, and can guarantee the intact original thread.

Description

Gas thread takes out instrument

Technical field

A kind of screw thread withdrawing device that the utility model relates to a kind of gas thread when breaking threaded interior.

Background technology

In daily life, enterprise are produced, often run into gas thread and when assembling, break situation in the part.Just difficult more when if the screw thread distortion is taken out, also, cause scrapping of product easily with the thread damage of part.For the gas thread that will break in the part takes out, the workman bit by bit smashes its taking-up with crooked chisel sometimes, and is not only time-consuming but also require great effort.Simultaneously, also be easy to the matching thread of part is damaged.

Summary of the invention

Get at existing that the gas thread instrument is wasted time and energy and easily with the deficiency of damage parts, the utility model provides a kind of can break the taking-up instrument of the gas thread of part female thread portion to all size.

The technical scheme that the utility model is taked is: a kind of gas thread that will break in the internal thread takes out instrument, comprises overcoat, steel disc, very heavy, diminished shaft; Overcoat is cylindrical, and overcoat circumferentially has oblate groove, and an end end face is processed with a screwed hole, and the other end has a cubic boss, and there is a unthreaded hole at the overcoat center, is processed with screwed hole along the center; Diminished shaft is positioned at unthreaded hole, and diminished shaft one end is a thread spindle, and the other end is an optical axis, and optical axis one end is a tetragonal prism, and is excessive by the tapering axle between optical axis and the thread spindle; Very heavy is arranged in oblate groove, and steel disc is positioned at very heavy one side; Steel disc is a circular arc; Very heavy shape is an oblateness, and its upper end is processed with tooth, and its lower end is the circular arc that concaves, and the upper and lower surface of this part has along its length and to form 1.5 °～2 ° angle with upper surface.

The tapering of described diminished shaft is 2 °～4 °.

The unthreaded hole of the inside center of described overcoat 1, the short 10mm～15mm of its depth ratio overcoat total length.

Described oblate groove quantity is 2～4.

Described steel disc is a circular arc, and thickness is 0.2～0.3mm.

The square aperture of described very heavy side processing, its degree of depth is 0.5～0.4mm.

Utilize this instrument to take out the gas thread of breaking of threaded interior, and can guarantee that original thread is excellent.

Description of drawings

Fig. 1 is the structural representation that is bumped into instrument, wherein 1: and overcoat, 2: steel disc, 3: very heavy, 4: diminished shaft;

Fig. 2 is the structural representation of overcoat, wherein 5: unthreaded hole, 6: screwed hole, 7: oblate groove, 8: cubic boss;

Fig. 3 is the A-A section enlarged diagram of Fig. 2;

Fig. 4 is the B-B generalized section of Fig. 2;

Fig. 5 is the diminished shaft structural representation, wherein 12: thread spindle, 13: tapering axle, 14: optical axis, 15: tetragonal prism;

Fig. 6 is the steel disc front view;

Fig. 7 is the steel disc side view;

Fig. 8 is a very heavy front view, wherein, and 11: square aperture;

Fig. 9 is a very heavy side view, wherein, and 9: profile of tooth, 10: circular arc.

The specific embodiment

Provide the utility model one better embodiment below by the utility model in order better to illustrate.

See also accompanying

drawing

1,2, Fig. 1 takes out the tool construction schematic diagram for gas thread, and Fig. 2 is the profile of overcoat, and Fig. 3 is the A-A section enlarged diagram of Fig. 2, Fig. 4 is the B-B generalized section of Fig. 2, and a kind of gas thread taking-up instrument comprises: overcoat 1, steel disc 2, very heavy 3, diminished shaft 4; Overcoat 1 is cylindrical, overcoat 1 circumferentially has oblate groove 7, one end end face is processed with a screwed hole 6, the other end has a cubic boss 8, there is a unthreaded hole 5 at overcoat 1 center, short 10mm～the 15mm of depth ratio overcoat 1 total length in this hole is in this section of 10～15mm, along the screwed hole 6 of a M6～M8 of center processing; Diminished shaft 4 is positioned at unthreaded hole 5, and diminished shaft 4 one ends are thread spindle 12, and the other end is an optical axis 14, and optical axis 14 1 ends are tetragonal prism 15, and is excessive by tapering axle 13 between optical axis 14 and the thread spindle 12, and the tapering of tapering axle 13 is 3 °～4 °, as shown in Figure 5; Be arranged in oblate groove 7 for very heavy 3, steel disc 2 is positioned at very heavy 3 one side; Steel disc 2 is a circular arc, and thickness is 0.2～0.3mm, shown in Fig. 6,7; Very heavy 3 shape is an oblateness, be processed with tooth 9 above it, it below it the circular arc 10 that concaves, the upper and lower surface of this part has along its length and to form 1.5 °～2 ° angle with upper surface, square aperture 11 of side processing at very heavy 3, shown in Fig. 8,9, its degree of depth 0.5～0.4mm.

The concrete course of work of this instrument is in the oblate groove 7 that is respectively charged into overcoat 1 with very heavy 3, in order to prevent that very heavy 3 skids off in the oblate groove 7 of overcoat 1, steel disc 2 is packed in very heavy 3 the lateral groove, because steel disc 2 is a circular arc, put into very heavy lateral groove, will exceed very heavy side.Steel disc 2 the raised areas, pressurized in the oblate groove of outer sleeve body, generation frictional force makes very heavy 3 can not be from line slip.The front threads of tapering axle 13 is screwed in the screwed hole 6 of overcoat 1, the optical axis 14 of tapering axle 13 matches with the endoporus of overcoat 1, rotating tapering axle 13 makes it along circumferentially moving, at this moment, the conical surface of tapering axle 13 contacts with very heavy 3 bottom, along with moving of tapering axle 13, very heavy 3 protruding in overcoat 1, finally contact, continue rotary conic axle 4, make the enough frictional force of inwall generation of very heavy 3 tooth 9 with gas thread with the gas thread inwall of threaded interior.At this moment, the gas thread that the rotating jacket body is broken in the screw thread very heavy 3 drive rotates together, thereby the gas thread that will break in the screw thread takes out from screw thread.

This instrument of application, the part that can will break under the prerequisite of not damaging gas thread in the gas thread takes out, and has improved the efficient and the quality of getting part.

Claims

1. a gas thread takes out instrument, it is characterized in that: a kind of gas thread that will break in the internal thread takes out instrument, comprises overcoat, steel disc, very heavy, diminished shaft; Overcoat is cylindrical, and overcoat circumferentially has oblate groove, and an end end face is processed with a screwed hole, and the other end has a cubic boss, and there is a unthreaded hole at the overcoat center, is processed with screwed hole along the center; Diminished shaft is positioned at unthreaded hole, and diminished shaft one end is a thread spindle, and the other end is an optical axis, and optical axis one end is a tetragonal prism, and is excessive by the tapering axle between optical axis and the thread spindle; Very heavy is arranged in oblate groove, and steel disc is positioned at very heavy one side; Steel disc is a circular arc; Very heavy shape is an oblateness, and its upper end is processed with tooth, and its lower end is the circular arc that concaves, and the upper and lower surface of this part has along its length and to form 1.5 °～2 ° angle with upper surface.

2. gas thread according to claim 1 takes out instrument, and it is characterized in that: the tapering of diminished shaft is 2 °～4 °.