CN103437842A

CN103437842A - Motor bearing cap

Info

Publication number: CN103437842A
Application number: CN2013103450015A
Authority: CN
Inventors: 胡万顺
Original assignee: Wuhu Hengfeng Technology Co Ltd
Current assignee: Wuhu Hengfeng Technology Co Ltd
Priority date: 2013-08-09
Filing date: 2013-08-09
Publication date: 2013-12-11

Abstract

The invention relates to a motor part, in particular to a motor bearing cap, which comprises a cap body, a thrust face, a time correcting raised line and two semicircular bearing block holes; the bearing block holes are positioned in the bottom face of the cap body; the time correcting raised line is positioned at the outer face of a semicircular annular boss, extending outwards, of each bearing block hole; the thrust face is semicircular and annular and is positioned at the axial outer faces of the bearing block holes; the edge of the thrust face is attached to the arc edges of the bearing block holes. The motor bearing cap can effectively realize the thrust function of the motor main bearing cap, facilitates the assembling, examining and time correcting and has the advantages of simple structure, convenience in operation and easiness in manufacturing.

Description

A kind of engine bearing lid

Technical field

The present invention relates to a kind of engine component, be specifically related to a kind of engine bearing lid.

Background technique

Motor is the important motivity parts in automobile, to automobile, provides power.Motor, by the engine spindle outputting power, need to close bearing cap at the main shaft bearing upper cover when mounted.The bearing cap of prior art covers at bearing and while being stuck on main shaft, be prone to the large problem of frictional force between bearing cap and main shaft, cause engine speed slack-off, and the too small problem that there will be bearing cap to rotate of frictional force between the bearing cap of prior art and bearing face.

The thrust function of most motor is all by 2 or 4 thrust plates realizations.On cylinder body or main bearing cap, the groove of thrust plate is installed in one of processing, and thrust plate is packed in groove, realizes the thrust function.The thrust plate assembling is complicated, and cost compare is high.Engine camshaft bearing cap in the past only has an effect, and that is exactly the stationary cam axle, prevents the circular runout that camshaft is in operation, and the axial clearance of camshaft is controlled by the thrust structure on cylinder cap.This just makes the layout of cylinder cover structure and processes become very difficult.In addition, owing to lacking timing marks, it is very difficult that the assembling of engine timing system also just becomes.

Chinese Patent Application No.: 201110375193.5, open day: on 04 25th, 2012, disclose the patent document that a name is called a kind of first bearing cover of engine cylinder cover.This invention relates to a kind of first bearing cap of engine cam axle, is furnished with bolt hole on bearing cap, is used for bearing cap is fixed on cylinder cap.The intake and exhaust bearing connects as with integral body by transverse arm.Simultaneously, by being arranged in two oilholes of intake cam axle bearing upper end, can be connected by external pipe and with the oil duct of VVT control valve.Clutch shaft bearing lid lower surface is cast with oil storage tank and oil duct, and the casting of oil duct reduces the machining difficulty greatly.This invention simplicity of design easily arranges that processing is simple, effectively reduces difficulty of processing.But the axial clearance of this invention camshaft is difficult to control, and the assembling of the layout of cylinder cover structure, processing and engine timing system is all very difficult.

Summary of the invention

the problem that 1, will solve

Axial clearance for prior art convexity wheel shaft is difficult to control, the assembling of the layout of cylinder cover structure, processing and engine timing system is very difficult problem all, the invention provides a kind of novel engine bearing lid, it both can be so that assembling and inspection timing, can effectively realize that again engine main bearing cover has the thrust function, and assembling is simple, and cost is lower.

2, technological scheme

For addressing the above problem, the present invention adopts following technological scheme.

A kind of engine bearing lid, comprise lid, also comprises thrust surface, timing raised line and bearing saddle bore; Described bearing saddle bore has two, is semicircle, is positioned at the bottom surface of lid; Described timing raised line is positioned at the outward extending semi-annular shape boss of bearing saddle bore outer surface; Described thrust surface is the semicircle annular, is positioned at bearing saddle bore outer surface vertically; Described thrust surface edge laminating bearing saddle bore curved edge.

Preferably, described lid upper surface also is provided with two mounting holes.

More preferably, described mounting hole is bolt hole.

Preferably, described thrust surface surface is provided with quench hardened case.

The present invention can effectively realize the thrust function of engine main bearing cover in use, and because designed the timing marks structure on bearing cap, and and the timing sprocket close together, be convenient to assembling and check timing.

3, beneficial effect

Than prior art, beneficial effect of the present invention is:

(1) at bearing saddle bore, outer surface vertically is provided with thrust surface in the present invention, and thrust surface edge laminating bearing saddle bore curved edge can effectively realize the thrust function of engine main bearing cover, and assembling is simple.

(2) the present invention is provided with the timing raised line at the outward extending semi-annular shape boss of bearing saddle bore outer surface, and it is by casting, and technique is simple, and and the timing sprocket close together, be convenient to assembling and check timing.

(3) thrust surface of the present invention surface is provided with quench hardened case, can effectively improve the working life of bearing cap;

(4) the present invention is simple in structure, easy to operate, makes easily.

The accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is plan view of the present invention.

Number in the figure explanation: 1, lid; 2, thrust surface; 3, timing raised line; 4, bearing saddle bore; 5 mounting holes.

Embodiment

For further understanding content of the present invention, below in conjunction with Figure of description and specific embodiment, describe the present invention.

A kind of engine bearing lid, comprise lid 1, and it also comprises thrust surface 2, timing raised line 3 and bearing saddle bore 4; Bearing saddle bore 4 has two, is semicircle, is positioned at the bottom surface of lid 1; Timing raised line 3 is positioned at the outward extending semi-annular shape boss of bearing saddle bore 4 outer surface; Described thrust surface 2 is the semicircle annular, is positioned at bearing saddle bore 4 outer surface vertically; Thrust surface 2 edge laminating bearing saddle bore 4 curved edges.

In addition, lid 1 upper surface also is provided with two bolt mounting holes 5, and thrust surface 2 surfaces are provided with quench hardened case.

During use, the thrust surface of outer surface vertically at bearing saddle bore, can effectively realize the thrust function of engine main bearing cover, and because designed the timing marks structure on bearing cap, and with the timing sprocket close together, during assembling, when motor one cylinder piston is positioned at compression top center, timing marks on valve timing adjuster is just relative with the timing raised line on lid, and the assembling of timing chain and the inspection in later stage are convenient in such design.

Above content is only to structure example of the present invention and explanation; affiliated those skilled in the art make various modifications to described specific embodiment or supplement or adopt similar mode to substitute; only otherwise depart from the structure of invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.

Claims

1. an engine bearing lid, comprise lid (1), it is characterized in that, also comprises thrust surface (2), timing raised line (3) and bearing saddle bore (4); Described bearing saddle bore (4) has two, is semicircle, is positioned at the bottom surface of lid (1); Described timing raised line (3) is positioned at the outward extending semi-annular shape boss of bearing saddle bore (4) outer surface; Described thrust surface (2) is the semicircle annular, is positioned at bearing saddle bore (4) outer surface vertically; Described thrust surface (2) edge laminating bearing saddle bore (4) curved edge.

2. according to the described a kind of engine bearing lid of claim 1, it is characterized in that: described lid (1) upper surface also is provided with two mounting holes (5).

3. according to the described a kind of engine bearing lid of claim 1, it is characterized in that: described mounting hole (5) is bolt hole.

4. according to the described engine main bearing cover of any one in claim 1-3, it is characterized in that: described thrust surface (2) surface is provided with quench hardened case.