CN201228727Y

CN201228727Y - Split type cylindrical roller bearing

Info

Publication number: CN201228727Y
Application number: CNU2008203007746U
Authority: CN
Inventors: 宋海芳; 陶永刚; 胡伟海; 宋伯仁; 杜以月
Original assignee: Wafangdian No1 Rolling-Mill Bearing Manufacturing Co Ltd
Current assignee: Wafangdian No1 Rolling-Mill Bearing Manufacturing Co Ltd
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2009-04-29
Anticipated expiration: 2018-05-19

Abstract

The utility model discloses a split cylindrical roller bearing, which is in double-row structure, each row comprises an outer ring, a row of cylindrical rollers (04), a set of retainer and an inner ring, wherein the outer ring is formed by two jointed semi-outer rings (51) via abutting, and the inner ring is formed by two jointed semi-inner rings (52) via abutting. Flange arranged at two ends of the outer ring of each row towards the axle center is used to limit the axial position of the roller. The two inner rings are abutted to each other, the two outer rings are separated via an outer space ring, and the outer space ring is formed by two jointed semi-outer space rings (53) in abutting form. A retaining ring arranged at two ends of the inner ring of each row is formed by two jointed semi-retaining rings via abutting, further, the retainer is formed by a retainer mount (06) locked with a retainer cap (16), and the retainer mount (06) and the retainer cap (16) are both formed by two jointed semi-circular frames via abutting. The bearing is convenient in mounting and dismounting and fast in installation, maintenance and replace of parts, and is adaptable to a main shaft with a shaft journal which is small in middle and large at two ends.

Description

The split type roller bearing

Technical field

The utility model relates to a kind of bearing, more particularly, relates to a kind of roller bearing.

Background technique

In the prior art, solid box needs whole axle is pulled down or padded up just and can assemble for the assembling of major axis, and it is more inconvenient to install when adjacent parts is big especially.And, for example supporting the position not at axle head and supporting position diameter during less than other position for the axle of step axle or multi-point support, solid box can't be packed into, must tear open greatly greatly when causing maintenance and unload, very inconvenient, it is long not only to have prolonged the operation cycle, and the amount of labour is also very big.

Summary of the invention

At the problems referred to above, the utility model provides a kind of and has been easy to load and unload, easy to maintenance, can be from the bearing of assembling radially.Be suitable for difficulty or the too high situation of installation cost axially being installed, also being applicable to the situation that bearing can't be dismantled adjacent parts of changing, concrete example is as the cold bed in steel rolling, the configuration of configuration of the bearing of its each bent axle, crankshaft handle and the several supportings of major axis position bearing etc.

In order to achieve the above object, the utility model has been constructed a kind of split type roller bearing, be double column structure, every row comprise that by two semicircle semi outer rings the outer ring, that is connected into being listed in cylindrical roller uniform on the circumference, overlaps the retainer that limits cylindrical roller, and dock the inner ring that forms by two semicircle half inner rings.The two ends of outer ring are provided with flange to axis direction, are used to limit the axial position of cylindrical roller.In addition, two row inner rings are mutually by putting; And two row outer rings are separated by by the ring-type outer ring spacer; Outer ring spacer is formed by two semicircle half outer ring spacer butt joints.Two ends at every row inner ring are provided with bail wire; Bail wire is formed by two semicircle half bail wire butt joints.Above-mentioned retainer is by keeping stand and retainer lid snapping to form; Wherein, keep stand to be formed by two semicircle stand butt joints, the retainer lid is formed by the butt joint of two semicircle frame lids.

Split type roller bearing of the present utility model, its improvement are that the butt joint of inner ring, outer ring is seamed into V-shape, 0.3 millimeter of gap.The butt joint of above-mentioned chucking circle is a parallel seams, is connected and fixed by screw mode or bolt/nut mode.The butt joint of retainer is a parallel seams, and two semicircle frame lids or stand are decided to be one by the flexible connection piece or the U type clamping of end.

By technique scheme, split type roller bearing of the present utility model has the characteristics of installation, convenient disassembly.Because its structure adopts split type, therefore be applicable to major axis or be provided with the axle of step that be particularly useful for the big main shaft in little two ends in the middle of the axle journal, installation, maintenance and replacing component are very convenient.

Description of drawings

Fig. 1 be the utility model split type roller bearing partly cut open structural representation, omit lower half portion of symmetry among the figure;

Fig. 2 be among Fig. 1 A-A to cross-sectional view;

Fig. 3 is the structural representation of outer ring in Fig. 1 bearing;

Fig. 4 is the structural representation of half outer ring spacer in Fig. 1 bearing;

Fig. 5 is the structural representation of inner ring in Fig. 1 bearing;

Fig. 6 is the main TV structure schematic representation of bail wire in Fig. 1 bearing, omits the left-half of symmetry among the figure, and does partial cutaway;

Fig. 7 is the side-looking structural representation of bail wire shown in Figure 6;

Fig. 8 is that bail wire shown in Figure 7 joint B-B is to cross-sectional view;

Fig. 9 is the main TV structure schematic representation that keeps stand in Fig. 1 bearing;

Figure 10 is that maintenance stand E-E shown in Figure 9 is to cross-sectional view;

Figure 11 be among Fig. 9 C-C to section partial structurtes schematic representation;

Figure 12 is the schematic top plan view of structure among Figure 11;

Figure 13 is that the connecting sheet that is provided with shown in Figure 11 connects the structural representation that keeps stand;

Figure 14 is the main TV structure schematic representation of retainer lid in Fig. 1 bearing;

Figure 15 is that retainer lid D-D shown in Figure 14 is to cross-sectional view;

Figure 16 is the structural representation of retainer connecting sheet in Fig. 1 bearing;

Figure 17 is that connecting sheet F-F shown in Figure 16 is to cross-sectional view.

Embodiment

With reference to figure 1-17 explanation the utility model split type roller bearing.Bearing among Fig. 1 is a double column structure.Every array structure comprises outer ring, inner ring and columna roller 04 and a cover retainer.Wherein, a row outer ring is formed by two semicircular semi outer rings 51 butt joints, and a row inner ring is formed by 52 butt joints of two semicircular half inner rings.

Shown in Figure 3, the two ends of every row outer ring are provided with flange to axis direction, are positioned at the both sides of this row roller, are used to limit the axial position of this line column roller.And be provided with outer ring spacer between the two row outer rings, as shown in Figure 4, outer ring spacer is formed by 53 butt joints of two semicircles, half outer ring spacer circlewise.

Among Fig. 1, by putting, the form of inner ring as shown in Figure 5 mutually for two row inner rings.Two ends at every row inner ring are respectively arranged with bail wire, are used to tighten the ring-type inner ring that is made of two and half inner rings 52.Bail wire also is to be formed by two semicircles,

half bail wire

29 and 99 butt joints shown in Fig. 6 and 7.Shown in Fig. 2 and 8, screw mode or bolt/nut mode are adopted in the butt joint of two and half bail wires, for set screw or bolt, mill out end face on half bail wire 29 of a side, and compression spring 89 and hex head bolt 19 are fixed on herein.

Every line column roller is defined in the pocket hole of a cover retainer among Fig. 1.The structure of retainer comprises maintenance stand 06 (shown in Fig. 9,10) and retainer lid 16 (shown in Figure 14,15), and the two snapping is an one, can adopt bearing pin to be connected and fixed.Wherein, every row keep stand 06 to be formed by two semicircle stand butt joints; Retainer lid 16 is formed by the butt joint of two semicircle frame lids.Under the optimal way, the butt joint of retainer is a parallel seams, and two semicircle frame lids or stand are decided to be one by the flexible connection piece or the U type clamping of end.Being provided with of flexible connection piece with reference to figure 11-13 and Figure 16,17.Wherein, keep the joint of stand 06 and retainer lid 16 to mill out docking groove (shown in Figure 11) on external cylindrical surface, bottom land is the plane, is used to shelve flexible connection piece 69.And offer six bolts hole (shown in Figure 12,16) on bottom land and the flexible connection piece; Spring sheet 39 and cylinder screw 59 are arranged at this (shown in Figure 13,17).

Split type roller bearing of the present utility model, the retainer of its outer ring, inner ring, band rolling element all are to be formed by the butt joint of two-part of axial subdivision, and clamp by the bail wire that is split into two halves, are fixed as one.Under the optimal way, the butt joint of inner ring, outer ring (subdivision seam) becomes V-shape, the V-type angle, and gap is 0.3 millimeter to the maximum.And the subdivision of bearing bail wire seam parallels to the axis.By screw attachment and clamping.The subdivision seam of the retainer of rolling element parallels to the axis, and the two halves retainer is connected as a single entity by two flexible connection pieces or U type folder.

Claims

[claim 1] a kind of split type roller bearing is characterized in that, is double column structure; Every row comprise that by two semicircle semi outer rings (51) outer ring, that is connected into being listed in cylindrical roller uniform on the circumference (04), overlaps the retainer that limits described cylindrical roller (04), and dock the inner ring that forms by two semicircle half inner rings (52); The two ends of described outer ring are provided with flange to axis direction, are used to limit the axial position of described cylindrical roller (04);

Two row inner rings are mutually by putting; And two row outer rings between by the ring-type outer ring spacer separately; Described outer ring spacer is formed by two semicircle half outer ring spacers (53) butt joint;

Two ends at every row inner ring are provided with bail wire; Described bail wire is formed by two semicircle half bail wire butt joints;

Described retainer is by keeping stand (06) and retainer lid (16) snapping to form, and described maintenance stand (06) is formed by two semicircle stand butt joints; Described retainer lid (16) is formed by the butt joint of two semicircle frame lids.
[claim 2] split type roller bearing according to claim 1 is characterized in that the butt joint of described inner ring, outer ring is seamed into V-shape, 0.3 millimeter of gap.
[claim 3] split type roller bearing according to claim 1 and 2 is characterized in that the butt joint of described chucking circle is a parallel seams, is connected and fixed by screw mode or bolt/nut mode.
[claim 4] split type roller bearing according to claim 3 is characterized in that the butt joint of retainer is a parallel seams, and described two semicircle frame lids or stand are decided to be one by the flexible connection piece or the U type clamping of end.