CN203792262U - Disassembling puller for blind hole bearing outer ring - Google Patents

Abstract

The utility model discloses a disassembling puller for a blind hole bearing outer ring, and belongs to the field of bearing assembly. The disassembling puller is characterized by comprising a pulling block (1), a locating block (2), a coupling block (3), a locking ring (4), a bearing frame (5), a screw shaft (6), a round nut (7), a drift holder (8), a release bearing (9) and an ejector rod (10), wherein the coupling block (3) is semicircular; an inner hole of the pulling block (1) is in movable fit with a top circle at the front end of the screw shaft (6); the top circle at the front end of the screw shaft (6) is in movable fit with the locating block (2); the drift holder (8) is fixed on the screw shaft (6) through the round nut (7); a screw thread at the rear end of the screw shaft (6) is of fin thread pitch; a deep hole is drilled in the center of the screw shaft (6); the ejector rod (10) is inserted in the deep hole in the screw shaft (6); the release bearing (9) is arranged on the screw shaft (6) in a sleeving manner. The disassembling puller for the blind hole bearing outer ring solves the problem that when the blind hole bearing clearance is small, the bearing outer ring is difficult to maintain and disassemble.

Description

A kind of blind hole bearing outer ring disassembling puller

Technical field

The utility model belongs to bearing assemble field, relates in particular to a kind of blind hole bearing outer ring disassembling puller.

Background technology

In the structural design of some heavily loaded speed changers, the bearing at jackshaft two ends usually can use cylinder roller bearing, its bearing inner steel web directly replaces with jackshaft two ends diameter of axle cylindrical, the cylindrical of the two ends diameter of axle can be done largerly like this, meets the strength and stiffness requirement of heavily loaded transmission countershaft; Yet things always has its favourable one side, also there is its disadvantageous one side; From assembly process process, this cylinder roller bearing assembling, because its cylinder rolling element is separated with outer steel mesh, is first pressed in bearing outer ring in housing respective aperture often, then places rolling element to outer steel mesh endoporus; When assembling back casing part, although can taking some measures, cylinder rolling element prevents from dropping, if bad to center, vibration still can be fallen down a little, to assembling, brings difficulty; Especially when speed changer has some fault, need to disassemble transmission assembly, when decision will split out bearing outer ring, difficulty is large especially.

Summary of the invention

The purpose of this utility model has been to provide a kind of blind hole bearing outer ring disassembling puller, has solved the blind hole bearing gap hour large problem of repair demolition bearing outer ring difficulty.

In order to achieve the above object, the utility model by the following technical solutions: a kind of blind hole bearing outer ring disassembling puller, comprises pulling block, locating piece, coupling block, retaining ring, bearing support, screw shaft, round nut, strand hand, release bearing and push rod; Wherein, coupling block is semicircle, the endoporus of pulling block coordinates for moving with screw shaft front end cylindrical, screw shaft front end cylindrical coordinates for moving with locating piece, strand hand is fixed on screw shaft by round nut, and the rear end screw thread of screw shaft adopts closely-pitched pitch, and screw shaft centre position gets out a deep hole, push rod inserts the deep hole on screw shaft, and release bearing is enclosed within on screw shaft.

A blind hole bearing outer ring disassembling puller, wherein pulling block front end make 0. 8～1. 5mm is every the pulling block of some thickness of 0. 2mm, cutting out kerve diameter is bottom, outer ring smallest circle internal diameter, the monolateral degree of depth is 1. 5～2mm; The rear end of pulling block is a cannelure, is used for installing the circular coupling block of two halves, after the circular coupling block assembling of two halves, by retaining ring, pins.

A blind hole bearing outer ring disassembling puller, wherein bearing support is open washer cast, both sides are city gate v notch v.

The beneficial effects of the utility model: just bearing outer ring has been pulled out effortlessly very much after using this blind hole bearing outer ring disassembling puller, and outside housing part and bearing, steel mesh has all reclaimed intactly, for company has saved manufacturing cost, use the welcome that is deeply subject to workman, simple to operate, be convenient to promote.

Accompanying drawing explanation

Fig. 1 is the structural representation of blind hole bearing outer ring disassembling puller.

In figure, 1, pulling block, 2, locating piece, 3, coupling block, 4, retaining ring, 5, bearing support, 6, screw shaft, 7, round nut, 8, strand hand, 9, release bearing, 10, push rod, 11, bearing clearance, 12, housing.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described, a blind hole bearing outer ring disassembling puller, as shown in fig. 1, comprises pulling block 1, locating piece 2, coupling block 3, retaining ring 4, bearing support 5, screw shaft 6, round nut 7, strand hand 8, release bearing 9 and push rod 10, wherein, coupling block 3 is semicircle, the endoporus of pulling block 1 coordinates for moving with screw shaft 6 front end cylindricals, screw shaft 6 front end cylindricals coordinate for moving with locating piece 2, strand hand 8 is fixed on screw shaft 6 by round nut 7, the rear end screw thread of screw shaft 6 can adopt closely-pitched pitch, to can not have polydonita stressed in the situation that round nut 7 is not thickeied, screw shaft 6 centre positions get out a deep hole, the deep hole that push rod 10 inserts on screw shaft 6, in use push rod 10 can be close to inner walls, can prevent screw shaft 6 rotations under stressing conditions when rotating nut, release bearing 9 is enclosed within on screw shaft 6.

A kind of blind hole bearing outer ring disassembling puller, as shown in fig. 1, wherein pulling block 1 front end according to blind hole bottom surface the useful space to bearing outer ring annular bottom surface, can make 0. 8～1. 5mm is every the pulling block of some thickness of 0. 2mm, cutting out kerve diameter is bottom, outer ring smallest circle internal diameter, and the monolateral degree of depth is 1. 5～2mm; The rear end of pulling block 1 is a cannelure, is used for installing the circular coupling block 3 of two halves, after circular coupling block 3 assemblings of two halves, by retaining ring 4, pins; The effect of bearing support 5 is to push down housing 12 reaction force corresponding with pulling out outer ring, can make open washer cast, both sides millable goes out city gate v notch v, conveniently at assembling process, finally put into bearing support 5, and rotatable Notch angle as required, being conducive to push rod 10 and moving up and down, the effect of release bearing 9 is to bear axial force, be conducive to draw tool laborsaving, make round nut strand hand not oversize in the situation that, also easily pull out steel mesh outside bearing.

The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.

Claims (3)

1. a blind hole bearing outer ring disassembling puller, is characterized in that: comprise pulling block (1), locating piece (2), coupling block (3), retaining ring (4), bearing support (5), screw shaft (6), round nut (7), strand hand (8), release bearing (9) and push rod (10); Wherein, coupling block (3) is semicircle, the endoporus of pulling block (1) coordinates for moving with screw shaft (6) front end cylindrical, screw shaft (6) front end cylindrical coordinates for moving with locating piece (2), it is upper that strand hand (8) is fixed on screw shaft (6) by round nut (7), and the rear end screw thread of screw shaft (6) adopts closely-pitched pitch, and screw shaft (6) centre position gets out a deep hole, push rod (10) inserts the deep hole on screw shaft (6), and release bearing (9) is enclosed within on screw shaft (6).

2. a kind of blind hole bearing according to claim 1 outer ring disassembling puller, it is characterized in that: wherein pulling block (1) front end make 0. 8～1. 5mm is every the pulling block of some thickness of 0. 2mm, cutting out kerve diameter is bottom, outer ring smallest circle internal diameter, and the monolateral degree of depth is 1. 5～2mm; The rear end of pulling block (1) is a cannelure, is used for installing the circular coupling block (3) of two halves, after the circular coupling blocks of two halves (3) assembling, with locking ring lock (4), lives.

3. a kind of blind hole bearing according to claim 1 outer ring disassembling puller, is characterized in that: wherein bearing support (5) is open washer cast, and both sides are city gate v notch v.