CN212690574U

CN212690574U - Mechanical crankshaft with good wear-resisting effect of shaft neck

Info

Publication number: CN212690574U
Application number: CN202022730646.9U
Authority: CN
Inventors: 郐占生
Original assignee: Weifang Tianrun Crankshaft Co ltd
Current assignee: Weifang Tianrun Crankshaft Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-03-12
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a mechanical crankshaft that axle journal is wear-resisting effectual relates to bent axle technical field, the utility model discloses a preceding link and back link, the internally mounted of preceding link has the bumper shock absorber, and one side of preceding link is fixed with preceding axle journal, and one side of preceding axle journal is fixed with first connecting rod axle journal, and one side of first connecting rod axle journal is fixed with the balancing piece. The utility model discloses a set up the sealing washer, the wearing layer, oil transportation through-hole and oil duct, the bent axle is alloy steel core material, can improve the intensity of bent axle journal, make the bent axle can bear bigger torque, avoid the bent axle to split at the during operation, the torque transmission effect of bent axle is better, through setting up sealing washer and wearing layer to a certain extent reduced the wearing and tearing to the bent axle surface, simultaneously through setting up oil transportation through-hole and oil duct, can make the lubricating oil in the oil duct carry out abundant lubrication to the bent axle, it is better to lubricate the effect.

Description

Mechanical crankshaft with good wear-resisting effect of shaft neck

Technical Field

The utility model relates to a bent axle technical field specifically is a mechanical crankshaft that wear-resisting effect of journal is good.

Background

The crankshaft is the most important component in the engine. It takes the force from the connecting rod and converts it into torque to be output by the crankshaft and drive other accessories on the engine. The crankshaft is subjected to the combined action of centrifugal force of the rotating mass, gas inertia force of periodic variation and reciprocating inertia force, so that the crankshaft is subjected to the action of bending and twisting load. Therefore, the crankshaft is required to have sufficient strength and rigidity, and the surface of the journal needs to be wear-resistant, work uniformly and balance well.

There is certain drawback at present mechanical crankshaft when using, when the torque that the axle bore is great, the easy wearing and tearing of bent axle damage, the life of bent axle is shorter, the hardness of bent axle is less, can't bear great torque, and the epaxial lubricated effect of bent axle is relatively poor, in addition, the main journal is different at the centrifugal force that rotates the in-process and receive, lead to the axle journal work inhomogeneous steady, influence the use, the rotation situation of the while unable monitoring bent axle, there is certain potential safety hazard, certain influence has been brought to people's use.

Disclosure of Invention

The utility model aims to provide a: in order to solve the problems that the mechanical crankshaft is easy to wear and damage, the lubricating effect on the crankshaft is poor, the centrifugal force of the main journal in the rotating process is different, the journal works unevenly and stably, the rotating condition of the crankshaft cannot be monitored, and certain potential safety hazards exist, the mechanical crankshaft with the good wear-resisting effect of the journal is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical crankshaft with a shaft neck having a good wear-resisting effect comprises a front connecting end and a rear connecting end, wherein a shock absorber is arranged inside the front connecting end, a front shaft neck is fixed on one side of the front connecting end, a first connecting rod shaft neck is fixed on one side of the front shaft neck, a balance block is fixed on one side of the first connecting rod shaft neck, a main shaft neck is fixed on one side of the balance block, a crank is fixed on one side of the main shaft neck, a rear shaft neck is fixed on one side of the crank, a second connecting rod shaft neck is fixed on one side of the rear shaft neck, a rear connecting end is fixed on one side of the second connecting rod shaft neck, a rotating speed sensor is arranged inside the rear connecting end, sealing rings are sleeved on the outer surfaces of the front connecting end and the rear connecting end, and wear-resisting layers and oil conveying through holes are arranged on the outer surfaces of the front shaft neck, the, oil ducts penetrate through the front shaft neck, the first connecting rod shaft neck, the balance block, the main shaft neck, the crank, the rear shaft neck and the second connecting rod shaft neck.

Preferably, the front journal, the first rod journal, the balance weight, the main journal, the crank, the rear journal and the second rod journal are in communication.

Preferably, the oil transportation through hole is provided with a plurality of oil transportation through holes, and the aperture sizes of the oil transportation through holes are consistent.

Preferably, two the sealing washer adopts the rubber material preparation to form, the wearing layer adopts the polyimide material preparation to form.

Preferably, the length of the main journal is less than the front journal, and the cross-sectional area of the main journal is less than the sum of the areas of the front and rear journals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up sealing washer, wearing layer, oil transportation through-hole and oil duct, the bent axle is alloy steel core material, can improve the intensity of bent axle journal, makes the bent axle can bear bigger torque, avoids the bent axle to fracture at the during operation, and the torque transmission effect of bent axle is better, has reduced the wearing and tearing to the bent axle surface to a certain extent through setting up sealing washer and wearing layer, simultaneously through setting up oil transportation through-hole and oil duct, can make the lubricating oil in the oil duct carry out abundant lubrication to the bent axle, and the lubrication effect is better;

2. the utility model discloses a set up the bumper shock absorber, revolution speed sensor, back link and preceding link, through the bumper shock absorber that sets up, can make its greatly reduce to vibrations that crankshaft rotation produced to a certain extent, simultaneously through the balancing piece, can make the main shaft neck atress even, make the bent axle keep evenly steady at the rotation in-process, relatively practical, revolution speed sensor's setting, can monitor the rotation situation of bent axle at any time, satisfy the demand in the in-service use process, whole crankshaft structure is simple, high durability and convenient operation, the effect of use is better for traditional mode.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the sectional structure of the main crankshaft of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

in the figure: 1. a front connection end; 2. a seal ring; 3. a shock absorber; 4. a front journal; 5. a first connecting rod journal; 6. a counterbalance; 7. a main journal; 8. a crank; 9. a rear journal; 10. a second connecting rod journal; 11. a wear layer; 12. an oil delivery through hole; 13. an oil passage; 14. a rotational speed sensor; 15. and a rear connecting end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, a mechanical crankshaft with a good journal wear resistance effect includes a front connection end 1, a seal ring 2, a damper 3, a front journal 4, a first rod journal 5, a balance block 6, a main journal 7, a crank 8, a rear journal 9, a second rod journal 10, a wear layer 11, an oil delivery through hole 12, an oil passage 13, a rotation speed sensor 14, and a rear connection end 15, the damper 3 is installed inside the front connection end 1, the front journal 4 is fixed to one side of the front connection end 1, the first rod journal 5 is fixed to one side of the front journal 4, the balance block 6 is fixed to one side of the first rod journal 5, the main journal 7 is fixed to one side of the balance block 6, the crank 8 is fixed to one side of the main journal 7, the rear journal 9 is fixed to one side of the crank 8, the second rod journal 10 is fixed to one side of the rear journal 9, the rear connection end 15 is fixed to one side of the second, the internally mounted of back link 15 has speed sensor 14, the sealing washer 2 has all been cup jointed to the surface of preceding link 1 and back link 15, preceding axle journal 4, first rod journal 5, the main journal 7, the surface of back axle journal 9 and second rod journal 10 all is provided with wearing layer 11 and oil delivery through-hole 12, preceding axle journal 4, first rod journal 5, balancing piece 6, main journal 7, crank 8, the inside of back axle journal 9 and second rod journal 10 has all run through oil duct 13.

Referring to fig. 1-3, the front journal 4, the first rod journal 5, the balance weight 6, the main journal 7, the crank 8, the rear journal 9 and the second rod journal 10 are connected to facilitate the lubrication of the whole crankshaft by the lubricant, and the plurality of oil delivery holes 12 are provided, and the diameters of the plurality of oil delivery holes 12 are consistent to facilitate the transportation of the lubricant.

Please refer to fig. 1-3, the two sealing rings 2 are made of rubber, the wear-resistant layer 11 is made of polyimide, so that the crankshaft has good wear resistance, the connecting end is connected so that the length of the main journal 7 is smaller than that of the front journal 4, the cross-sectional area of the main journal 7 is smaller than the sum of the areas of the front journal 4 and the rear journal 9, and the overall working stability of the crankshaft is facilitated.

The working principle is as follows: firstly, the bent axle is the alloy steel core material, can improve the intensity of bent axle journal, make the bent axle can bear bigger torque, avoid the bent axle to split at the during operation, the torque transmission effect of bent axle is better, through setting up sealing washer 2 and wearing layer 11 and having reduced the wearing and tearing to the bent axle surface to a certain extent, simultaneously through setting up oil delivery through-hole 12 and oil duct 13, can make the lubricating oil in the oil duct carry out abundant lubrication to the bent axle, lubricated effect is better, through the bumper shock absorber 3 that sets up, can make it reduce greatly to the vibrations that the bent axle rotated the production to a certain extent, simultaneously through balancing piece 6, can make the trunnion atress even, make the bent axle keep evenly steady in the rotation process, it is more practical, revolution speed sensor 14's setting, can monitor the rotation situation of bent axle at any time, satisfy the demand in the in-service use.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a wear-resisting effectual mechanical crankshaft of journal, includes preceding link (1) and back link (15), its characterized in that: the shock absorber is characterized in that a shock absorber (3) is mounted inside the front connecting end (1), a front journal (4) is fixed on one side of the front connecting end (1), a first connecting rod journal (5) is fixed on one side of the front journal (4), a balance block (6) is fixed on one side of the first connecting rod journal (5), a main journal (7) is fixed on one side of the balance block (6), a crank (8) is fixed on one side of the main journal (7), a rear journal (9) is fixed on one side of the crank (8), a second connecting rod journal (10) is fixed on one side of the rear journal (9), a rear connecting end (15) is fixed on one side of the second connecting rod journal (10), a rotating speed sensor (14) is mounted inside the rear connecting end (15), and sealing rings (2) are sleeved on the outer surfaces of the front connecting end (1) and the rear connecting end (15), the outer surfaces of the front journal (4), the first connecting rod journal (5), the main journal (7), the rear journal (9) and the second connecting rod journal (10) are respectively provided with a wear-resistant layer (11) and an oil delivery through hole (12), and oil ducts (13) are respectively penetrated through the interiors of the front journal (4), the first connecting rod journal (5), the balance block (6), the main journal (7), the crank (8), the rear journal (9) and the second connecting rod journal (10).

2. The mechanical crankshaft with the journal having good wear resistance effect of claim 1, wherein: the front journal (4), the first connecting rod journal (5), the balance block (6), the main journal (7), the crank (8), the rear journal (9) and the second connecting rod journal (10) are communicated.

3. The mechanical crankshaft with the journal having good wear resistance effect of claim 1, wherein: the oil transportation through holes (12) are arranged in a plurality, and the aperture sizes of the oil transportation through holes (12) are consistent.

4. The mechanical crankshaft with the journal having good wear resistance effect of claim 1, wherein: two sealing washer (2) adopt the rubber material preparation to form, wearing layer (11) adopt the polyimide material preparation to form.

5. The mechanical crankshaft with the journal having good wear resistance effect of claim 1, wherein: the length of the main journal (7) is smaller than that of the front journal (4), and the cross-sectional area of the main journal (7) is smaller than the sum of the areas of the front journal (4) and the rear journal (9).