CN2470063Y

CN2470063Y - Blind-hole drawing device

Info

Publication number: CN2470063Y
Application number: CN 01213745
Authority: CN
Inventors: 颜文彪; 颜瑞龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-26
Filing date: 2001-03-26
Publication date: 2002-01-09
Anticipated expiration: 2011-03-26

Abstract

Disclosed is a blind hole tensile poking device for drawing out inner and outer rings of a ball bearing in the machinery repair, which is composed of a seat plate, a seat frame composed of two ejector pins and a tensile poking device. The utility model is characterized in that the tensile poking device is composed of a lead screw, a wire mother, a linking board, draw-hooks, a rotating nut, a fixing top block and an adjusting positioning screw rod. The middle of the linking board is fixed on the lower end of the lead screw. The upper parts of the left and right draw-hooks are respectively hinged on the left and right parts of the linking board. The middle parts of the left and right draw-hooks are respectively provided with the rotating nut and the fixing top block. The adjusting positioning screw rod is arranged on the rotating nut, and the rear part of the adjusting positioning screw rod is pressed on the trumpet-shaped delve of the fixing top block. The utility model has characteristics that: firstly, the utility model can be used widely for the utility model can draw the bearing ring whose diameter is from 30 to 160 mm; secondly, the ring is forced evenly and is easy to be drawn out; thirdly, the utility model can hook on the margin of the bearing ring or on the groove of the bead of the bearing ring according to the using convenience with flexible operation.

Description

The blind hole drawing device

The utility model relates to the repair of machine new tool.

In repair of machine, because of broken its outer race of ball bearing pearl is stayed on the housing, or after the axle taking-up, bearing is stayed on the housing, for staying outer annular distance of housing upper ball bearing or interior annular distance, be called blind hole on the industry, take out outer race or the bearing stayed on the housing, existing way is to adopt mounting and cam to draw to dial device, is hooked in a side on the bearing edge with the screw mandrel end cams, and screw mandrel puts the protruding cover location of protruding toward another side, rotate screw, and pull out bearer ring, and there is following drawback in it: the one, only draw the annular distance of dialling 20-50mm, narrow application range; The 2nd, only to draw on one side, discontinuity is difficult for pulling out; The 3rd, can only the draw ring edge, can not the bead pilot trench.

The purpose of this utility model is to provide a kind of scope of application big, stressed evenly, pulls out easily, but not only can hook bearer ring edge but also the blind hole drawing device of hook bearer ring pearl groove.

The utility model is to adopt 2 symmetrical drag hooks that are hinged on the connecting plate, and on a drag hook peace rotatable nut, fixing jacking block on another drag hook, when 2 drag hooks are hooked on outer race or the interior ring edge or on the pearl groove, hold out against on jacking block with the positioning screw tail end that is contained on the rotation nut, the mode that makes 2 drag hooks can not break away from bearer ring achieves the goal.

Characteristics of the present utility model: the one, scope of application major diameter can both be pulled out at the bearer ring of 30-160mm; The 2nd, stressed even, pull out easily; The 3rd, can be hooked in and also can be hooked on the bearer ring edge on the bearer ring pearl groove, decide flexible operation on convenient.

Below in conjunction with accompanying drawing embodiment is described:

Accompanying drawing is the main schematic diagram of looking for this general ability portion cuts open.

With reference to accompanying drawing, this device is by mounting and draw group device to form, mounting is by seat board (1), push rod (2,3) form, draw and dial device by screw mandrel (4), screw (5), connecting plate (6), drag hook (7,8), rotation nut (9), fixedly jacking block (10) and adjusting positioning screw (11) are formed, being positioned on mounting seat board (1) center screw mandrel (4) bottom is fixed on the connecting plate (6), both constitute  shape, on drag hook (7) and drag hook (8) upper end are hinged on respectively and hold about connecting plate (6), drag hook (7) and drag hook (8) middle part is equipped with rotation nut (9) and fixing jacking block (10) respectively, be positioned on the adjusting positioning screw (11) in rotation nut (9), its tail end is pressed in fixedly on jacking block (10) the shape cave.

Claims

A kind of being used in repair of machine pulls out in the ball bearing, the blind hole drawing device of outer shroud, by seat board (1), push rod (2,3) mounting of Zu Chenging is dialled the device composition with drawing, it is characterized in that this draws group device by screw mandrel (4), screw (5), connecting plate (6), drag hook (7,8), rotation nut (9), fixedly jacking block (10) and adjusting positioning screw (11) are formed, being positioned on mounting seat board (1) center screw mandrel (4) bottom is fixed on the connecting plate (6), both constitute  shape, on drag hook (7) and drag hook (8) upper end are hinged on respectively and hold about connecting plate (6), drag hook (7) and drag hook (8) middle part is equipped with rotation nut (9) and fixing jacking block (10) respectively, be positioned on the adjusting positioning screw (11) in rotation nut (9), its tail end is pressed in fixedly on jacking block (10) the shape cave.