CN208503256U - A kind of unilateral mosaic thrust bearing shell - Google Patents

Abstract

The utility model discloses a kind of unilateral mosaic thrust bearing shells, including watt body and thrust plate, watt body and thrust plate are semicircle laminated structure, also symmetrically offer oil groove in watt body central transverse axis, a round oilhole is offered at the center of oil groove, round oilhole is the longitudinal hole through watt body；The two sides of watt body symmetrically offer side notch, watt body is also provided with central indentation and is not on same axis with a watt body longitudinal centre line, the outer edge of thrust plate offers thrust plate oil sump, the inner circle side design of thrust plate has intermediate fixing buckle and side fixing buckle, watt body and thrust plate by central indentation and intermediate fixing buckle cooperation, while notch and while fixing buckle cooperation be linked together.The utility model improves aiming at the problem that existing watt of body both sides installation thrust plate, processing cost height, thrust plate generation low with the assembly efficiency of watt body and easy are accidentally assembled, and the utility model has the characteristics that save the cost, assembly connection are simple and prevent from accidentally assembling.

Description

A kind of unilateral mosaic thrust bearing shell

Technical field

The utility model relates to plain thrust bearings used in a kind of gearing, more particularly to one kind is by thrust plate The unilateral mosaic thrust bearing shell being composed with watt body.

Background technique

At present within the engine, bearing shell is secondary as friction, has both carry the friction between axis and bore, while transmitting again The movement load of crankshaft.And crankshaft is during exercise, it is same due to the presence of big flywheel other than normal rotary motion Shi Huiyou axial motion in order to prevent this axial motion of crankshaft, while must make to have between crank and watt seat reasonable again Movement clearance, now current method or be exactly using installing whole flange watt either edge-trimmed tile, another kind is first in axis It holds and engine crankshaft bush is installed on seat, thrust plate then is installed on its both sides.Due to low while quick for installation excellent of the cost of edge-trimmed tile Point, more and more engines use this form of edge-trimmed tile.Traditional edge-trimmed tile is all to install a thrust plate on watt body both sides, The disadvantage is that processing cost is high, thrust plate is low with the assembly efficiency of watt body, and due to one side thrust far from flywheel after assembling Piece does not stress, and is fitted without the necessity of thrust plate.

For this purpose, the utility model is compared to existing watt the utility model discloses a kind of unilateral mosaic thrust bearing shell Thrust plate is installed on body both sides, and processing cost is high, and thrust plate is low with the assembly efficiency of watt body, and the utility model provides a kind of unilateral peace Thrust plate assembly on the notch of watt body and is linked securely, is quickly and expediently installed by the thrust bearing shell for filling thrust plate, a piece of Thrust bearing shell only needs to assemble a thrust plate, substantially saves product cost, not only increases assembly efficiency, while also solving The axial thrust generated in engine operation process, in turn ensure have reasonable movement clearance between crank and watt seat.In addition, Watt body central indentation is the setting of bias 2.5mm, and the mistake for effectively preventing thrust plate is assembled.The utility model have save at Originally, assembly connection is simple and prevents the characteristics of accidentally assembling.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of unilateral mosaic thrust bearing shell, To solve in the prior art watt of body both sides installation thrust plate, processing cost is high, thrust plate is low with the assembly efficiency of watt body etc. Technical problem.The utility model has the characteristics that save the cost, assembly connection are simple and prevent from accidentally assembling.

The utility model is achieved through the following technical solutions: the utility model discloses a kind of unilateral inserted thrusts Bearing shell, including watt body and thrust plate, watt body and thrust plate are semicircle laminated structure, and watt body is transversely also right on central axis Title offers a " u "-shaped oil groove and oil groove is not opened to the end of watt body, and a round oilhole, round oil are offered at the center of oil groove Hole is the longitudinal hole through watt body；The two sides of watt body symmetrically offer side notch, a watt body be also provided with central indentation and with watt Body longitudinal centre line is not on same axis, and the outer edge of thrust plate offers thrust plate oil sump, and the inner circle side of thrust plate is set In respect of intermediate fixing buckle and side fixing buckle, watt body and thrust plate by central indentation and intermediate fixing buckle engaging, while notch and while Fixing buckle, which is engaged, to be linked together.

Preferably, in order to there are fluid side appropriate and in order to not influence the cooperation of subsequent bearing shell and axis, the two of oil groove End is 1.9-2.1mm with watt body threshold value range, and the both ends of oil groove offer chamfering, chamfer angle 45 to a watt body end Degree.

Preferably, in order to be capable of fixing watt body and thrust plate.The two sides of central indentation are additionally provided with two rectangle boss, and two A rectangle boss and transverse axis angle are 60 degree.The quantity of side notch is 2, the side of two side notches transversely axis Line is equipped with a rectangle boss, and the length of rectangle boss is the 3/5 of the length of side notch；The quantity of side fixing buckle is 2, The top of side fixing buckle, which is dug along circumferential direction to thrust plate end, an arc angling, and the width of thrust plate end is that thrust plate is wide The 1/2 of degree.

Preferably, the mistake assembly of thrust plate in order to prevent, central indentation it is opposite along the offset direction of watt body transverse axis and Offset distance is identical, and central indentation offset distance is set as 2.5mm.

Preferably, in order to guarantee the quick use formed and extend thrust plate of the oil film between thrust surface and crankshaft end-face Service life, the quantity of thrust plate oil sump are 3, and the center line of thrust plate oil sump and the intersection point of thrust plate inner circle side are with longitudinal axis Angle is respectively 60 degree, 0 degree, -60 degree；Thrust plate oil sump longitudinally runs through thrust plate and thickness within the scope of 0.5-0.9mm.

Preferably, in order to eliminate the unstability for assembling fit clearance, thrust plate is from the two sides of intermediate fixing buckle along ring It is the gap of 2mm that outward, digging, which has a width,.

The utility model discloses a kind of unilateral mosaic thrust bearing shell, including watt body and thrust plate, and in the prior art Watt body both sides thrust plate is installed, processing cost is high, and thrust plate is compared with the assembly efficiency of watt body is low, a kind of unilateral installation thrust Thrust plate assembly on the notch of watt body and is linked securely, is quickly and expediently installed, a piece of thrust shaft by the thrust bearing shell of piece It watt only needs to assemble a thrust plate, substantially saves product cost, not only increase assembly efficiency, while also solving and starting The axial thrust generated in machine operation process, in turn ensuring has reasonable movement clearance between crank and watt seat.In addition, in watt body Between notch be bias 2.5mm setting, effectively prevent thrust plate mistake assemble.The utility model has save the cost, dress With connection simply and prevent the characteristics of accidentally assembling.

Detailed description of the invention

Fig. 1 is the utility model front view；

Fig. 2 is the utility model top view.

Specific embodiment

It elaborates below to the embodiments of the present invention, the present embodiment before being with technical solutions of the utility model It puts and is implemented, the detailed implementation method and specific operation process are given, but the protection scope of the utility model is unlimited In following embodiments.

Embodiment 1

Embodiment 1 discloses a kind of unilateral mosaic thrust bearing shell, as depicted in figs. 1 and 2, including watt body 1 and thrust plate 2, watt body 1 and thrust plate 2 are semicircle laminated structure, and watt body 1 also symmetrically offers " u "-shaped oil groove in central transverse 11 and the both ends of oil groove 11 and 1 threshold value range of watt body be 2.1mm, the both ends of oil groove 11 offer chamfering to 1 end of watt body, Chamfer angle is 45 degree.A round oilhole 12 is offered at the center of oil groove 11, round oilhole 12 is logical through the longitudinal direction of watt body 1 Hole；The two sides of watt body 1 are symmetrically opened up there are two side notch 13, and transversely to be equipped with one rectangular for axis for the side of two side notches 13 Shape boss 15, the length of rectangle boss 15 are the 3/5 of the length of side notch 13；Watt body 1 be also provided with central indentation 14 and with Watt 1 longitudinal centre line of body is not on same axis, and central indentation 14 is opposite along the offset direction of 1 transverse axis of watt body and deviates Distance is 2.5mm.The two sides of central indentation 14 are additionally provided with two rectangle boss 15, two rectangle boss 15 and lateral shaft Wire clamp angle is 60 degree.The outer edge of thrust plate 2 offers thrust plate oil sump 21, and the quantity of thrust plate oil sump 21 is 3, thrust The center line of piece oil sump 21 and the intersection point of 2 inner circle side of thrust plate with the angle of longitudinal axis be respectively 60 degree, 0 degree, -60 spend；Only Push jack oil sump 21 is longitudinal through thrust plate 2 and with a thickness of 0.9mm.The inner circle side design of thrust plate 2 has intermediate fixing buckle 22 and 2 Side fixing buckle 23, thrust plate 2 circumferentially dig the gap (figure for having that a width is 2mm outward from the two sides of intermediate fixing buckle 22 In do not mark).The top of side fixing buckle 23, which is dug along circumferential direction to 2 end of thrust plate, an arc angling, 2 end of thrust plate Width is the 1/2 of 2 width of thrust plate；Watt body 1 and thrust plate 2 are closed by central indentation 14 and intermediate fixing buckle 22, side notch 13 It is linked together with the engaging of side fixing buckle 23.

Embodiment 2

Embodiment 2 discloses a kind of unilateral mosaic thrust bearing shell, including watt body 1 and thrust plate 2, watt body 1 and thrust plate 2 It is semicircle laminated structure, watt body 1 also symmetrically offers the two of a " u "-shaped oil groove 11 and oil groove 11 in central transverse End is 1.9mm with 1 threshold value range of watt body, and the both ends of oil groove 11 offer chamfering, chamfer angle 45 to 1 end of watt body Degree.A round oilhole 12 is offered at the center of oil groove 11, round oilhole 12 is the longitudinal hole through watt body 1；The two of watt body 1 Side is symmetrically opened up there are two side notch 13, and transversely axis is equipped with a rectangle boss 15 for the side of two side notches 13, long The length of square boss 15 is the 3/5 of the length of side notch 13；Watt body 1 be also provided with central indentation 14 and in 1 longitudinal direction of watt body Heart line is not on same axis, and central indentation 14 is opposite along the offset direction of 1 transverse axis of watt body and offset distance is 2.5mm.The two sides of central indentation 14 are additionally provided with two rectangle boss 15, and two rectangle boss 15 and transverse axis angle are equal It is 60 degree.The outer edge of thrust plate 2 offers thrust plate oil sump 21, and the quantity of thrust plate oil sump 21 is 3, thrust plate oil sump 21 Center line and 2 inner circle side of thrust plate intersection point with the angle of longitudinal axis be respectively 60 degree, 0 degree, -60 spend；Thrust plate oil sump 21 is longitudinal through thrust plate 2 and with a thickness of 0.5mm.The inner circle side design of thrust plate 2 has intermediate fixing buckle 22 and 2 side fixing buckle 23, thrust plate 2 circumferentially digs the gap for having a width for 2mm outward from the two sides of intermediate fixing buckle 22.Side fixing buckle 23 Top dug to 2 end of thrust plate along circumferential direction and have an arc angling, the width of 2 end of thrust plate is 2 width of thrust plate 1/2；Watt body 1 and thrust plate 2 are closed by central indentation 14 and intermediate fixing buckle 22, while notch 13 and while the engaging of fixing buckle 23 be linked as One.

Claims (6)

1. a kind of unilateral mosaic thrust bearing shell, including watt body and thrust plate, described watt of body and the thrust plate are semicircle Laminated structure, described watt of body is transversely also provided with a " u "-shaped oil groove on central axis and oil groove is not opened to the end of described watt of body Portion, a round oilhole is offered at the center of the oil groove, and the circle oilhole is the longitudinal hole through described watt of body；It is special Sign is, the two sides of described watt of body symmetrically offer side notch, described watt of body be also provided with central indentation and in watt body longitudinal direction Heart line is not on same axis, and the outer edge of the thrust plate offers thrust plate oil sump, and the inner circle side of the thrust plate is set In respect of intermediate fixing buckle and side fixing buckle, described watt of body and the thrust plate pass through the central indentation and the intermediate fixing buckle Engaging, it is described in notch and it is described while fixing buckle engaging be linked together.

2. a kind of unilateral mosaic thrust bearing shell as described in claim 1, which is characterized in that the both ends of the oil groove and watt body For threshold value within the scope of 1.9-2.1mm, the both ends of the oil groove offer chamfering to watt body end, and chamfer angle is 45 degree.

3. a kind of unilateral mosaic thrust bearing shell as described in claim 1, which is characterized in that the two sides of the central indentation are also If two rectangle boss and transverse axis angle are 60 degree there are two rectangle boss；The quantity of the side notch It is 2, transversely axis is equipped with a rectangle boss for the side of two side notches, and the length of the rectangle boss is The 3/5 of the length of the side notch；The quantity of the side fixing buckle is 2, and the top of the side fixing buckle is along circumferential direction to only Push jack end, which is dug, an arc angling, and the width of the thrust plate end is the 1/2 of the thrust plate width.

4. a kind of unilateral mosaic thrust bearing shell as described in claim 1, which is characterized in that the central indentation is along described watt The offset direction of body transverse axis is opposite and offset distance is identical, and the central indentation offset distance is set as 2.5mm.

5. a kind of unilateral mosaic thrust bearing shell as described in claim 1, which is characterized in that the quantity of the thrust plate oil sump It is 3, the center line of the thrust plate oil sump and the intersection point of thrust plate inner circle side are respectively 60 with the angle of longitudinal axis Degree, 0 degree, -60 degree；The thrust plate oil sump longitudinally runs through thrust plate and thickness within the scope of 0.5-0.9mm.

6. a kind of unilateral mosaic thrust bearing shell as described in claim 1, which is characterized in that the thrust plate is fixed from centre Play the gap circumferentially dug outward and have a width for 2mm in the two sides of button.