CN201376256Y

CN201376256Y - Adjustable bearing housing detacher

Info

Publication number: CN201376256Y
Application number: CN200920012511U
Authority: CN
Inventors: 周彦君; 李时岩
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2010-01-06
Anticipated expiration: 2019-03-30

Abstract

The utility model relates to an adjustable bearing housing detacher, which is provided with a beam with a rectangular cross section. Internal threaded holes are arranged between the upper face and the lower face in the middle of the beam, screws are screwed into the internal threaded holes, strip-shaped holes are symmetrically arranged respectively between the upper faces and the lower faces at both sides of the beam, a pull rod penetrates through the strip-shaped hole, the lower end of the pull rod is provided with a pull head, the upper section of the pull rod is a threaded rod section, upper and lower nuts on the upper face and the lower face of the beam are screwed on a threaded rod, the outer diameter of the nut is larger than the width of the strip-shaped hole, the pull head is provided with opposite screw holes, one of the opposite screw holes is a left-hand threaded hole, and the other is a right-hand threaded hole. A puller threaded rod is connected between the two opposite screw holes, the middle section of the puller screw rod is provided with a wrench square, and both sides of the puller threaded rod are respectively provided with left-handed external threads and right-handed external threads. The adjustable bearing housing detacher detaches the bearing housing embedded in a bearing cup by the rotation power of the threads and the pull head matched with the inner circumference surface of the bearing bushing, has high working efficiency and low cost, and does not cause damage to electromechanical equipment.

Description

Adjustable bearing overcoat stripping attachment

Technical field

The utility model relates to the instrument that a kind of machine repairing benchwork is used when the maintenance electromechanical equipment, particularly a kind of machine repairing benchwork removes the instrument that bearing outside is used in bearing cup when the maintenance electromechanical equipment.

Background technology

The rolling bearing of some electromechanical equipment is in the bearing cup on frame or on the equipment.Sometimes need bearing outside is disassembled in bearing cup in the dynamo-electric device procedures of maintenance, bearing outside is in bearing cup, is interference fits between bearing outside and the bearing cup, is difficult to disassemble in bearing cup.In the prior art, do not remove the specific purpose tool of bearing outside in the bearing cup, during bearing outside in the dismounting bearing cup, have plenty of the water welding and open bearing outside, then the fragment of bearing outside is taken out in bearing cup.Dismantle the bearing outside in the bearing cup in this way, inefficiency, it is big that the water welding is opened the bearing outside expense, though take out bearing outside, can cause seriously electromechanical equipment and damage.

Summary of the invention

The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of high efficiency, and expense is little, can not cause the adjustable bearing overcoat stripping attachment of damage to electromechanical equipment.

The utility model is realized with the following method.

It is the crossbeam of rectangle that adjustable bearing overcoat stripping attachment has the cross section, on in the middle of the crossbeam, below between internal thread hole is arranged, be rotary with leading screw in the internal thread hole, on the crossbeam both sides, below between have respectively the symmetry strip hole, be installed with the drawing bar in the strip hole, there is the drawing head lower end of drawing bar, the epimere of drawing bar is a spiro rod section, be rotary with on the screw rod on crossbeam, on following, lower nut, the external diameter of nut is greater than the width of strip hole, relative screw is arranged on the drawing head, in the relative screw one be left handed threaded hole another be the right-handed thread hole, be connected with fastening screw between two relative screws, there is spanner side in the stage casing of fastening screw, and the both sides of fastening screw have left-handed respectively and external screw thread dextrorotation.

With the utility model being set in bearing outside in the bearing cup when disassembling, need to cooperate ∏ shape support to use jointly, ∏ shape support has crossbeam, the length of crossbeam is a bit larger tham the external diameter of the bearing cup at bearing outside place, the two ends of crossbeam are connected with vertical socle respectively, and the height of socle is a bit larger tham the height of bearing outside.During use, shape according to the bearing outside inner periphery is selected the drawing head, if dismounting ball roller bearing overcoat, can select cydariform drawing head for use, if drawing taper roll bearing overcoat, can select trapezoidal drawing head for use, two drawing heads are spun on the two ends of fastening screw respectively, the drawing head that is connected with fastening screw is placed in the bearing outside, the rotation fastening screw, allow the drawing head be tight against on the inner peripheral surface of bearing outside, rotation drawing nut, the drawing bolted on crossbeam, ∏ shape support be placed on bearing cup outer above, allow on the axis that is centered close to bearing outside of ∏ shape support, rotating threaded shaft, allow the lower end of leading screw descend to be tight against centre at ∏ shape support, continue rotating threaded shaft, the lower ends downward motion of leading screw, the drawing head that is tight against on bearing outside inner peripheral surface in the bearing cup moves upward, can disassemble the bearing outside that is set in the bearing cup, because on the crossbeam both sides, below between the strip hole of symmetry is arranged respectively, be applicable to the bearing outside dismounting in the different bore bearing cups.

The utility model uses the power dismounting of the drawing head that matches with the bearing outside inner peripheral surface and screw thread rotation to be set in bearing outside in the bearing cup, high efficiency, and expense is little, can not cause damage to electromechanical equipment.

Below in conjunction with accompanying drawing, the utility model is further described.

Description of drawings

Fig. 1 cuts open schematic diagram according to the master office of looking of a kind of adjustable bearing overcoat stripping attachment of invention scheme proposition of the present utility model;

Fig. 2 is the schematic top plan view of Fig. 1;

Fig. 3 is the schematic diagram with the utility model dismounting ball roller bearing overcoat in the bearing cup;

Fig. 4 is that schematic diagram cuts open in the master office of looking of trapezoidal drawing head.

The specific embodiment

Fig. 1, among Fig. 2, it is the crossbeam 1 of rectangle that adjustable bearing overcoat stripping attachment has the cross section, on in the middle of the crossbeam, below between internal thread hole 2 is arranged, be rotary with trapezoidal screw 3 in the internal thread hole, on the crossbeam both sides, below between have respectively the symmetry strip hole 4, be installed with drawing bar 5 in the strip hole, there is cydariform drawing 6 lower end of drawing bar, the epimere of drawing bar is a spiro rod section 7, be rotary with on the screw rod on crossbeam, on following, lower nut 8,9, the external diameter of nut is greater than the width of strip hole, relative screw 10 is arranged on the drawing head, in the relative screw one be left handed threaded hole another be the right-handed thread hole, be connected with fastening screw 11 between two relative screws, there is spanner side 12 in the stage casing of fastening screw, and the both sides of fastening screw have left-handed respectively and external screw thread 13 dextrorotation, 14.

Above-mentioned drawing head is a cydariform drawing head, and the side of cydariform drawing head is a cambered surface, is fit to from dismounting ball roller bearing overcoat in bearing cup.

Among Fig. 3, during from 16 li dismountings of the bearing cup of equipment 15 ball roller bearing overcoat 17, need to cooperate ∏ shape support 18 to use jointly with the utility model.During use, the drawing head that is connected with fastening screw is placed in the bearing outside, the rotation fastening screw, allow the drawing head be tight against on the inner peripheral surface of bearing outside, ∏ shape support be placed on bearing cup outer above, rotating threaded shaft, allow the lower end of leading screw descend to be tight against centre at ∏ shape support, continue rotating threaded shaft, the lower ends downward motion of leading screw, the drawing head that is tight against on bearing outside inner peripheral surface in the bearing cup move upward, and can disassemble the bearing outside that is set in the bearing cup.

Can be with drawing bar during dismounting taper roll bearing overcoat in bearing cup with trapezoidal drawing head.

Among Fig. 4, there is trapezoidal drawing 20 lower end with drawing bar 19 of trapezoidal drawing head.

Claims

1. adjustable bearing overcoat stripping attachment, it is characterized in that: it is the crossbeam of rectangle that the cross section is arranged, on in the middle of the crossbeam, below between internal thread hole is arranged, be rotary with leading screw in the internal thread hole, on the crossbeam both sides, below between have respectively the symmetry strip hole, be installed with the drawing bar in the strip hole, there is the drawing head lower end of drawing bar, the epimere of drawing bar is a spiro rod section, be rotary with on the screw rod on crossbeam, on following, lower nut, the external diameter of nut is greater than the width of strip hole, relative screw is arranged on the drawing head, in the relative screw one be left handed threaded hole another be the right-handed thread hole, be connected with fastening screw between two relative screws, there is spanner side in the stage casing of fastening screw, and the both sides of fastening screw have left-handed respectively and external screw thread dextrorotation.

2. by the described adjustable bearing overcoat of claim 1 stripping attachment, it is characterized in that: described drawing head is a cydariform drawing head.

3 by the described adjustable bearing overcoat of claim 1 stripping attachment, and it is characterized in that: described drawing head is trapezoidal drawing head.