CN218670166U - Novel crankshaft - Google Patents

Abstract

The utility model provides a novel crankshaft belongs to transmission technical field. It has solved the problem that the oil blanket life among the current bent axle is short. The utility model discloses a crankshaft, including the bent axle body that has the output shaft, the junction of output shaft and cylinder body is equipped with the bent axle oil blanket, the epaxial terminal surface towards the cylinder body of output has seted up annular installing port, be provided with outer position circle on the annular installing port, outer position circle one end has the baffle circle of extending along output shaft outer wall, its other end has the protruding rank of outside extension, the bent axle oil blanket comprises sealed support section and sealed joint section, sealed joint section card is located on the protruding rank, sealed support section longitudinal section is the trapezoidal form, the left footpath of sealed support section is greater than the right footpath, sealed support section the inner has the extension platform of outside radial extension, the slope of outer position circle inner wall is seted up, by outer position circle, extend platform and output shaft are around forming a cavity each other, be equipped with elastic element in this cavity. The utility model has the advantages of improve oil blanket life.

Description

Novel crankshaft

Technical Field

The utility model belongs to the technical field of transmission, a bent axle, in particular to novel bent axle is related to.

Background

The crankshaft is a core component in the engine, and bears the force transmitted by the connecting rod, and converts the force into torque which is output through the crankshaft and drives other accessories on the engine to work.

The crankshaft is rotated by the piston of each cylinder to convert chemical energy of explosion into physical power of rotation, so that it requires a great deal of oil for maintaining lubrication, and the crankshaft is movably fitted to the cylinder block, so that an oil seal is provided on the output shaft of the crankshaft at a position connected to the cylinder block to prevent oil from leaking from this connection.

However, the oil seal of the existing crankshaft can not be used due to aging after being used for a period of time, the sealing performance is reduced along with the aging, and the oil seal needs to be replaced in time. The applicant provides a novel crankshaft to solve the problem of how to perfect the crankshaft structure and prolong the service life of an oil seal.

Disclosure of Invention

The utility model aims at providing an improve oil blanket life's novel bent axle to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a novel crankshaft, includes the bent axle body that has the output shaft, its characterized in that, the junction of output shaft and cylinder body be equipped with the bent axle oil blanket, the output epaxial terminal surface towards the cylinder body seted up annular installing port, annular installing port on be provided with outer position circle, outer position circle one end baffle circle that extends along output shaft outer wall has, its other end has the protruding rank of outside extension, the bent axle oil blanket constitute by sealed support section and sealed joint section, sealed joint section card locate on the protruding rank, sealed support section longitudinal section be trapezoidal form, the left footpath of sealed support section is greater than right footpath, sealed support section inner have outside radial extension platform, outer position circle inner wall slope set up, by outer position circle, extend platform and output shaft around each other and form a cavity, and be equipped with elastic element in this cavity, and this elastic element one end butt is on extending the platform, the other end butt is epaxial in the output.

In the novel crankshaft, the baffle ring is fixed on the output end shaft through a plurality of bolts.

In the above novel crankshaft, the elastic element is a tower spring.

Compared with the prior art, this novel bent axle has extension bent axle oil blanket life, improves the advantage of leakproofness.

Drawings

Fig. 1 is a schematic sectional view of the crankshaft of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic view of an application scenario of the novel crankshaft.

In the figure, 1, an output end shaft; 2. a crankshaft body; 3. an outer positioning ring; 4. a baffle ring; 5. a convex step; 6. a seal support section; 7. sealing the clamping section; 8. an extension stage; 9. an elastic element; 10. and (4) bolts.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2, and fig. 3, the novel crankshaft includes a crankshaft body 2 having an output shaft 1, a crankshaft oil seal is disposed at a joint of the output shaft 1 and a cylinder body, an annular mounting opening is disposed on the output shaft 1 toward an end surface of the cylinder body, an outer locating ring 3 is disposed on the annular mounting opening, one end of the outer locating ring 3 has a baffle ring 4 extending along an outer wall of the output shaft 1, and the other end of the outer locating ring has a convex step 5 extending outward, the crankshaft oil seal is composed of a sealing support section 6 and a sealing clamping section 7, the sealing clamping section 7 is clamped on the convex step 5, a longitudinal section of the sealing support section 6 is in a trapezoidal shape, a left diameter of the sealing support section 6 is larger than a right diameter, an extension platform 8 extending outward in a radial direction is disposed at an inner end of the sealing support section 6, an inner wall of the outer locating ring 3 is obliquely disposed, the outer locating ring 3, the extension platform 8 and the output shaft 1 mutually surround to form a cavity, and an elastic element 9 is disposed in the cavity, one end of the elastic element 9 abuts against the cylinder body 8, and the other end of the cylinder body is pressed against the output shaft, and the elastic element 9, and the elastic element is pressed on the cylinder body, and the cylinder body, the elastic element is a high-sealing support section.

Preferably, the baffle ring 4 is fixed to the output shaft 1 by a plurality of bolts 10.

Preferably, the elastic element 9 is a tower spring.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms output shaft 1, crankshaft body 2, outer retainer 3, retainer ring 4, step 5, seal support segment 6, seal clamping segment 7, extension table 8, resilient element 9, bolt 10, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (3)

1. The utility model provides a novel crankshaft, is including having bent axle body (2) of output shaft (1), its characterized in that, the junction of output shaft (1) and cylinder body be equipped with the bent axle oil blanket, output shaft (1) go up to the terminal surface of cylinder body and seted up annular installing port, annular installing port on be provided with outer position circle (3), outer position circle (3) one end baffle circle (4) that extend along output shaft (1) outer wall have, its other end has outside protruding rank (5) that extend, the bent axle oil blanket constitute by sealed support section (6) and sealed joint section (7), sealed joint section (7) card locate on protruding rank (5), sealed support section (6) longitudinal section be the trapezoidal form, the left side footpath of sealed support section (6) is greater than the right footpath, sealed support section (6) the inner extend platform (8) that have outside radial extension, outer position circle (3) inner wall slope set up, by outer position circle (3), extend platform (8) and output shaft (1) and this other end is equipped with the butt on the cavity, this output shaft (9) and this other end extends on the cavity and form a butt on this cavity (9).

2. A new crankshaft according to claim 1, characterized in that the said ring (4) is fixed to the output shaft (1) by means of several bolts (10).

3. A new crankshaft according to claim 1, characterized in that said elastic element (9) is a tower spring.

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