CN102794738A

CN102794738A - Structure of non-destructive pin extractor

Info

Publication number: CN102794738A
Application number: CN2011101467243A
Authority: CN
Inventors: 王翠翠
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-23
Filing date: 2011-05-23
Publication date: 2012-11-28

Abstract

The invention discloses a structure of a non-destructive pin extractor. Bolts, a connector and a pin are fastened into a whole; a tensile lead screw penetrates through a traction joint; the connector is connected with internal and external threads on the traction joint; the tensile lead screw penetrates through a middle hole of a sleeve, so that the bottom plane of the tensile lead screw is in contact with the planes of an upper workpiece and a lower workpiece; and an anti-rotating guide bolt is screwed into a screw hole on the external circle of the traction joint from a guide groove, a flat gasket is arranged on the tensile lead screw extending out of the end of the sleeve, and a hand wheel is screwed. The pin is extracted in a mode of lifting the tensile lead screw by relative rotation of the threads matched with the tensile lead screw in the middle of the hand wheel, so that the pin extracting force is uniform and consistent with the axis of the pin to prevent destructing the threads of the pin, and the pin can be conveniently extracted.

Description

A kind of structure of non-damage extractor for pins

Technical field

The present invention relates to the structure of a kind of structure of extractor, particularly a kind of non-damage extractor for pins, belong to the hardware & tools technical field.

Background technology

Electromechanics maintenance with make, often will with some the pin of installing and locating extract, at present; Extract in the instrument of pin; Basically be employed on the elongated bolt instrument of cover impact head, earlier the screw thread of slender bolt be screwed in the pin respective threads hole during use, then continuously in the axis direction wrench impact head of elongate threaded screw; Through the impulsive force that bolt head produced of impact head bump elongate threaded screw, pin is extracted; Though it is all simple that the puller of this kind uses with structure; But because the general length of slender bolt is longer; Processing is pulled out when drawing impact head, and it is consistent with the axis of slender bolt to control its active force fully, so not only make slender bolt crooked easily; Also make thread damage easily, cause the result that can't extract pin.

Summary of the invention

The objective of the invention is to: a kind of structure of non-damage extractor for pins is provided, overcomes the threaded portion in pin or the puller that makes easily that existing pin puller in use exists and damage, cause the defective that pin is normally extracted.

For realizing above-mentioned purpose, the technical scheme that the present invention adopted is: a kind of structure of non-damage extractor for pins, and it is to be fastened as one by bolt, connector and pin; The pulling force screw mandrel passes from tow attachment; Connector and the internal and external threads above the tow attachment are connected, and the pulling force screw mandrel is passed from the interstitial hole of sleeve, make its baseplane and last workpiece; The plane of following workpiece contacts; The spline guide blot is screwed in gathering sill the screw of tow attachment cylindrical, loads onto plain cushion on the pulling force screw mandrel that sleeve ends is stretched out, be screwed into handwheel.

Beneficial effect: because the present invention relatively rotates through the screw thread that cooperates with the pulling force screw mandrel in the middle of the handwheel; And thereby the mode that promotes the pulling force screw mandrel is extracted pin; Institute is so that the power effect of pulling pin is even; And can guarantee that withdrawal force is consistent with the axis of pin, be unlikely to damage the screw thread of pin, and can easily pin be extracted again.

Description of drawings

Fig. 1 is a schematic diagram of the present invention.

Shown in the figure: 1, pulling force screw mandrel; 2, handwheel; 3, plain cushion; 4, sleeve; 5, tow attachment; 6, connector; 7, work bolt; 8, go up workpiece; 9, following workpiece; 10, pin; 11, spline guide blot.

The specific embodiment

Bolt 7, connector 6 and pin 10 are fastened as one, and pulling force screw mandrel 1 passes from tow attachment 5, and connector 6 is connected with tow attachment 5 top internal and external threads; Pulling force screw mandrel 1 is passed from the interstitial hole of sleeve 4; Make its baseplane and last workpiece 8, the plane of following workpiece 9 contacts, and in gathering sill a, is screwed into spline guide blot 11 screw of tow attachment 5 cylindricals; Load onto plain cushion 3 on the pulling force screw mandrel 1 that sleeve 4 ends are stretched out, be screwed into handwheel 2.

Claims

1. the structure of a non-damage extractor for pins; It is characterized in that: pulling force screw mandrel (1) passes from the interstitial hole of sleeve (4); Make its baseplane and last workpiece (8), the plane of following workpiece (9) contacts, and spline guide blot (11) is screwed in gathering sill a the screw of tow attachment (5) cylindrical.