CN2573166Y

CN2573166Y - Bearing outer ring detacher

Info

Publication number: CN2573166Y
Application number: CN 02275570
Authority: CN
Inventors: 李德春; 刘君富; 曾嗣堂
Original assignee: Daqing Oilfield Co Ltd
Current assignee: Daqing Oilfield Co Ltd
Priority date: 2002-09-30
Filing date: 2002-09-30
Publication date: 2003-09-17
Anticipated expiration: 2012-09-30

Abstract

The utility model relates to a bearing outer ring detacher, which relates to a bearing remover, particularly a detacher specially used for detaching the bearing outer ring. The existing numerous bearing detachers only can detach the complete bearing, but can not deal with the bearing outer rings separately left in a bearing seat. The utility model is composed of a main body part and a matching body part. In the main body part, the inner part of a central through hole of a supporting board (6) is provided with screw thread which is in threaded connection with a screw rod on a threaded rod (4). The supporting board (6) is provided with through holes with the number of the multiples of three, and the through holes are radially distributed from the center to outside in the triangular equidistant way. The inner part of the through hole is fixed with three supporting rods (2). In the matching body part, the right end of an elastic expanding sleeve (8) is connected with at least two expanding claws (8-1), and the outer screw thread of the elastic expanding sleeve (8) is connected with the inner screw thread of a connecting sleeve (3). The utility model has the advantages of simple structure, convenient operation, wide adapting range, safety, and labor saving. One person can finish the detaching operation, and the inner surface of the bearing seat can not be damaged.

Description

The bearing outer ring stripping attachment

Technical field: the utility model relates to bearing extractor, particularly a kind of stripping attachment of special dismounting bearing outer ring.

Background technology: bearing is in mechanical movement, owing to occurring plastic deformation and insufficient lubrication, the unreliable reasons such as wearing and tearing that produce of sealing on spot corrosion, rolling element or the lasso raceway, heating, running accuracy reduction often appear, thereby cause bearing failure, this outer bearing also may damage because of lasso fracture, retainer, rolling element corrosion, often occur inner ring, rolling element, retainer and axle during maintenance and extract out together, the outer ring then is left in the bearing block.Because bearing outer ring and inner hole of bearing seat adopt tight fit usually, way commonly used is to adopt hammering or weld 2-3 bolt on cycle surface, takes out by the application of force that is threaded, and these two kinds of methods all may be damaged the inner surface of bearing block, cause bearing block to scrap.The shaft bearing replacer that uses mostly can only be dismantled whole bearing at present, and is mostly powerless for independent outer ring dismounting.

Summary of the invention: the purpose of this utility model is a kind of bearing outer ring special dismounting device of development, this stripping attachment does not get loose in the time of should having dismounting, the energy self-locking, versatility, interchangeability are strong, wide accommodation, simple in structure, easy to use, safe laborsaving, the characteristics that the people can operate.The utility model is made up of main part and ligand moiety; Main part includes handle 11, support bar 2, adapter sleeve 3, gripper shoe 6; Through hole and taper knob that handle 11 passes on the taper knob 10 flexibly connect, the left end of screw rod 4 injects in the blind hole of taper knob 10 right-hand members, with a straight pin 9 both are fixed, fix an oblate plug 4-1 on the right-hand member head of screw rod 4, adapter sleeve 3 is enclosed within on screw rod 4 right-hand members and the oblate plug 4-1, adapter sleeve 3 can be along screw rod 4 rotations, in the central through hole of gripper shoe 6 screw thread is arranged, and be connected with threads of lead screw on the screw rod 4, have a multiple through hole of " three " on the gripper shoe 6, by outside radial the equidistantly distributing triangular in shape in center, be fixed with three support bars 2 in the through hole; Ligand moiety includes elastic expansion sleeve 8, dilating screw 1, the bloated body 5 of taper; Be fixed with dilating screw 1 by screw thread in the tapped through hole of elastic expansion sleeve 8, the right-hand member of elastic expansion sleeve 8 is connected with at least two bloated pawl 8-1, be fixed with oblate plug 1-1 on the right-hand member head of dilating screw 1, the bloated body 5 of taper is enclosed within on the right-hand member and oblate plug 1-1 of dilating screw 1, and the external screw thread of elastic expansion sleeve 8 is connected with the internal thread of adapter sleeve 3.Ligand moiety can be made into series of tools by the bearing outer ring of different size.The utility model is simple in structure, and is easy to use, wide accommodation, and safety labor-saving, a people can finish disassembling section, and can not damage the inner surface of bearing block.

Description of drawings: Fig. 1 is an overall structure schematic diagram of the present utility model, and Fig. 2 is the through hole distribution schematic diagram of gripper shoe 6.

The specific embodiment: this specific embodiment is made up of main part and ligand moiety; Main part includes handle 11, support bar 2, adapter sleeve 3, gripper shoe 6; Through hole and taper knob that handle 11 passes on the taper knob 10 flexibly connect, the left end of screw rod 4 injects in the blind hole of taper knob 10 right-hand members, with a straight pin 9 both are fixed, fix an oblate plug 4-1 on the right-hand member head of screw rod 4, adapter sleeve 3 is enclosed within on screw rod 4 right-hand members and the oblate plug 4-1, adapter sleeve 3 can be along screw rod 4 rotations, in the central through hole of gripper shoe 6 screw thread is arranged, and be connected with threads of lead screw on the screw rod 4, have a multiple through hole of " three " on the gripper shoe 6, by outside radial the equidistantly distributing triangular in shape in center, be fixed with three support bars 2 in the through hole; Ligand moiety includes elastic expansion sleeve 8, dilating screw 1, the bloated body 5 of taper; The tapped through hole internal thread of elastic expansion sleeve 8 is fixed with dilating screw 1, the right-hand member of elastic expansion sleeve 8 is connected with at least two bloated pawl 8-1, be fixed with oblate plug 1-1 on the right-hand member head of dilating screw 1, the bloated body 5 of taper is enclosed within on the right-hand member and oblate plug 1-1 of dilating screw 1, and the external screw thread of elastic expansion sleeve 8 is connected with the internal thread of adapter sleeve 3.Ligand moiety can be made into series of tools by the bearing outer ring of different size.

The course of work: the bloated pawl 8-1 of ligand moiety is sent to the bearing outer ring the inside together with the bloated body 5 of taper cross a bit slightly, adjust dilating screw then, the bloated body 5 of taper is outwards moved, the pawl 8-1 distending that expands catches on bearing outer ring, again the adapter sleeve 3 of main part is connected with elastic expansion sleeve 8, for simplicity, can lay down three support bars 2 on the gripper shoe 6 earlier, after finishing, connection again support bar 2 is installed on the gripper shoe 6, rotational support plate 6 makes support bar 2 be supported on the end face of bearing block turning handle 11, make screw rod 4, adapter sleeve 3, ligand moiety and bearing outer ring outwards move, and finally remove bearing outer ring.Support bar 2 on the gripper shoe 6 can be selected relevant through hole according to the size (size of bearing outer ring) of ligand moiety.

Claims

1, bearing outer ring stripping attachment, it is made up of main part and ligand moiety; Main part includes handle (11), support bar (2), adapter sleeve (3), gripper shoe (6), ligand moiety includes elastic expansion sleeve (8), dilating screw (1), the taper body (5) that expands, through hole and taper knob that handle (11) passes on the taper knob (10) flexibly connect, the left end of screw rod (4) injects in the blind hole of taper knob (10) right-hand member, with a straight pin (9) both are fixed together, fix an oblate plug (4-1) on the right-hand member head of screw rod (4), adapter sleeve (3) is enclosed within on screw rod (4) right-hand member and the oblate plug (4-1), adapter sleeve (3) can rotate along screw rod (4), it is characterized in that having on the gripper shoe (6) a multiple through hole of " three ", by outside radial the equidistantly distributing triangular in shape in center, be fixed with three support bars (2) in the through hole; The tapped through hole internal thread of elastic expansion sleeve (8) is fixed with dilating screw (1), the right-hand member of elastic expansion sleeve (8) is connected with at least two bloated pawls (8-1), be fixed with oblate plug (1-1) on the right-hand member head of dilating screw (10), the taper body (5) that expands is enclosed within on the right-hand member and oblate plug (1-1) of dilating screw (1), and the external screw thread of elastic expansion sleeve (8) is connected with the internal thread of adapter sleeve (3).