CN2487913Y - Flywheel end crankshaft main bearing block with oil seal ring - Google Patents

Abstract

The utility model discloses a flywheel end crankshaft main bearing block with oil seal ring which belongs to the diesel engine art. The problems that the utility model solved are that: the structure of the flywheel end crankshaft main bearing block is improved reasonably to remove an oil seal seat of the prior art, lower manufacturing cost and improve use value. The technical proposal of the utility model is that: a bearing block body (1-1) is connected with an engine body (1); and an oil seal ring (3) and an oil return hole (6) are arranged inside an outer bearing bore (1-2) corresponding to a bearing block cover (2). The utility model is an improvement with prominent efficiency on the flywheel end crankshaft main bearing block of a diesel engine.

Description

Flywheel end crankshaft main bearing pedestal with oil seal washer

Technical field

The utility model belongs to diesel technology, relates to a kind of 2 cylinders or 2 cylinders above multi-cylinder diesel engine of being specially adapted to, and with the flywheel end crankshaft main bearing pedestal that body combines, be specifically related to a kind of flywheel end crankshaft main bearing pedestal with oil seal washer.

Background technique

The oil sealing of the crankshaft main bearing pedestal of the diesel-engine body flywheel end of prior art, employing protrude from the body side and realize with the oil sealing base that bolt and body link.In practice, thisly follow oil seal technique remote, exposed following 3 deficiencies at least: the one because the projection of oil sealing base, thus with its equipped mutually flywheel casing complex contour.For this reason, flywheel casing generally all adopts the ironcasting of preparation process relative complex.And under diesel engine work situation, damaging problem takes place through regular meeting in this cast iron flywheel casing; The 2nd, because the assembling surface of contact between oil sealing base and body is big, and between said attaching face, though prior art adopts the paper gasket oil sealing, but still the leakage problems of machine oil takes place easily; The 3rd, because the oil sealing base complex structure, in global design, in order to tackle the matching requirements of oil sealing base, and the corresponding lengthening crankshaft length of having to, this has just correspondingly strengthened the volume of Diesel Engine Complete Machine undoubtedly.The deficiency of all this kind prior art affects the further raising of diesel engine quality, also is harmful to user's interests.

Summary of the invention

The purpose of this utility model is to provide a kind of rational in infrastructure simple, and the oil sealing performance is good, and the design of attaching parts that help matching with it is further rationally improved, has the flywheel end crankshaft main bearing pedestal of oil seal washer, to overcome the deficiency of prior art.

The technological scheme that realizes the purpose of this utility model is, it still by with the bearing seat and the pedestal cap of body disjunctor, both split and cooperate assembling to form, and in said bearing seat and the equipped outside axis hole that is constituted of pedestal cap, be provided with oil seal washer, and in the endoporus of pedestal cap, and be positioned at the inboard place of oil seal washer, be provided with spill port.Thereby realize the axial oil sealing purpose of bent axle.

And on the surface of contact of said bearing seat and the mutual setting-in of pedestal cap, promptly be the engine oil leakage problem at the bi-side place of pedestal cap, in general high or take under the condition of interference fit in machining accuracy, be avoidable.For simplified processing process, reduce manufacture cost, further improvement of the utility model point also is, in said pedestal cap and equipped mutually bi-side with bearing seat, be respectively equipped with right seal strip groove and left seal strip groove, and in said right seal strip groove and left seal strip groove, be respectively arranged with right Stamping Steel Ribbon and left Stamping Steel Ribbon.

And said oil seal washer, the oil seal washer of pastern bone frame.

And the said right side, left Stamping Steel Ribbon, all pastern bone frame Stamping Steel Ribbon.

The utility model compared with the prior art, what had is rational in infrastructure simple, the oil sealing performance is good, owing to save oil sealing base, thereby shortened crankshaft length, dwindled the Diesel Engine Complete Machine volume, having reduced manufacture cost, improved characteristics such as use value, is fairly obvious.

Description of drawings

The utility model is realized the technological scheme and the characteristics thereof of its above-mentioned purpose, by the reference accompanying drawing to the description of its specific embodiment and more clear.In these accompanying drawings:

Fig. 1 is plan view of the present utility model;

Fig. 2 is for figure cuts open in Figure 1A-A office;

Fig. 3 is the plan view of pedestal cap with respect to position shown in Figure 1;

Fig. 4 is the right elevation of oil seal washer with respect to position shown in Figure 2.

Embodiment

Please join and read accompanying drawing 1 to 4, be example with the CT484Q diesel engine, the utility model by with body 1 mutually disjunctor bearing seat 1-1 and pedestal cap 2 is split mutually and twist with bolt and to close institute and form.When adopting common processing method, Vehicle Processing by the endoporus that both constituted after, and in the endoporus 1-2 of its outside, be provided with the outside framework oil seal circle 3 that steel material supports.And in the endoporus of pedestal cap 2, and be positioned at the inboard place of oil seal washer 3, be provided with a spill port 6.On pedestal cap 2 and the surface of contact mutual setting-in of bearing seat 1-1, both sides respectively by mill processing be provided with 5mm wide * right seal strip groove 2-1 and left seal strip groove 2-2 that 4mm is dark, and in right seal strip groove 2-1 and left seal strip groove 2-2, be respectively arranged with right Stamping Steel Ribbon 4 of steel-wire carcass and steel-wire carcass left side Stamping Steel Ribbon 5.And the flywheel casing 7 equipped mutually with the utility model then is steel sheet material product.And the external diameter of used oil seal washer 3 is φ 92mm, and thickness is 10mm, the used right side, left Stamping Steel Ribbon 4 and 5, and its sectional dimension is 4.7 * 4.3mm.

Claims (4)

1, a kind of flywheel end crankshaft main bearing pedestal that is specially adapted to multi-cylinder diesel engine with oil seal washer, it is by being formed with the bearing seat (1-1) and the pedestal cap (2) of body (1) disjunctor, it is characterized in that, in the equipped outside axis hole (1-2) that is constituted of said bearing seat (1-1) and pedestal cap (2), be provided with oil seal washer (3), and in the endoporus of pedestal cap (2) and be positioned at the inboard place of oil seal washer (3), be provided with spill port (6).

2, the flywheel end crankshaft main bearing pedestal with oil seal washer according to claim 1, it is characterized in that, in said pedestal cap (2) and equipped mutually bi-side with bearing seat (1-1), be respectively equipped with right seal strip groove (2-1) and left seal strip groove (2-2), and in said right seal strip groove (2-1) and left seal strip groove (2-2), be respectively arranged with right Stamping Steel Ribbon (4) and left Stamping Steel Ribbon (5).

3, the flywheel end crankshaft main bearing pedestal with oil seal washer according to claim 1 is characterized in that, the oil seal washer of said oil seal washer (3) pastern bone frame.

4, the flywheel end crankshaft main bearing pedestal with oil seal washer according to claim 2 is characterized in that, said right Stamping Steel Ribbon (4) and left Stamping Steel Ribbon (5), all pastern bone frame Stamping Steel Ribbon.

Images