CN212643293U

CN212643293U - Crankshaft structure with low friction force

Info

Publication number: CN212643293U
Application number: CN202021333195.9U
Authority: CN
Inventors: 陈东岘
Original assignee: Xi'an Yilai Machinery Manufacturing Co ltd
Current assignee: Xi'an Yilai Machinery Manufacturing Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-02
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a crankshaft structure with low friction, in particular to the technical field of low friction crankshaft, comprising a plurality of connecting rod diameters, a plurality of crank arms, a plurality of main journals, a rear journal and a front journal, wherein the outer end of the connecting rod diameters is provided with an antifriction mechanism; antifriction mechanism includes a plurality of rings, the ring is established in connecting rod diameter of axle outer end, the ring inner wall is equipped with a plurality of first balls, first ball and ring inner wall fixed connection, first ball contacts with connecting rod diameter of axle outer end, the ring outer end is equipped with a plurality of second balls, second ball and ring outer end fixed connection. The utility model discloses an utilize first ball and second ball to reduce the frictional force between connecting rod and the connecting rod diameter of axle to avoid the wearing and tearing to the connecting rod diameter of axle, thereby can prevent that the bent axle from receiving the damage.

Description

Crankshaft structure with low friction force

Technical Field

The embodiment of the utility model provides a low friction crankshaft technical field, concretely relates to crankshaft structure that frictional force is low.

Background

The crankshaft mainly has the functions of bearing the force transmitted by the connecting rod and generating a rotating moment around the axis of the crankshaft, and the moment is output outwards through the flywheel; in addition, the crankshaft is used to drive the engine's valve train and accessories such as a generator, a water pump, a steering pump, an air compressor, etc.

In the prior art, lubricating oil is utilized to reduce dry friction between a connecting rod and a connecting rod shaft diameter, but before the lubricating oil is coated on the whole connecting rod shaft diameter, the dry friction still exists between the connecting rod and the connecting rod shaft diameter, so that the connecting rod shaft diameter is easily abraded, and the crankshaft is damaged.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a low crankshaft structure of frictional force reduces the frictional force between connecting rod and the connecting rod diameter of axle through utilizing first ball and second ball to avoid the wearing and tearing to the connecting rod diameter of axle, thereby can prevent that the bent axle from receiving the damage, with the problem of solving among the prior art because the connecting rod diameter of axle that the existence of dry friction leads to easily wears out.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: a crankshaft structure with low friction force comprises a plurality of connecting rod shaft diameters, a plurality of crank arms, a plurality of main journals, a rear journal and a front journal, wherein the crank arms are fixedly arranged on two sides of each connecting rod shaft diameter respectively;

antifriction mechanism includes a plurality of rings, the ring is established in connecting rod diameter of axle outer end, the ring inner wall is equipped with a plurality of first balls, first ball and ring inner wall fixed connection, first ball contacts with connecting rod diameter of axle outer end, the ring outer end is equipped with a plurality of second balls, second ball and ring outer end fixed connection.

Furthermore, a first oil storage tank is arranged inside the diameter of the connecting rod shaft, a plurality of second through holes are formed in the diameter of the connecting rod shaft, and the second through holes are communicated with the first oil storage tank.

Further, a second oil storage tank is arranged inside the circular ring, a plurality of first through holes are formed in the top of the circular ring, the first through holes are communicated with the second oil storage tank, a plurality of third through holes are formed in the bottom of the circular ring, and the third through holes are communicated with the second oil storage tank.

Furthermore, a clamping groove is formed in the outer end of the shaft diameter of the connecting rod, and the first ball is arranged inside the clamping groove.

Furthermore, one end of each crank arm is provided with a balance weight, and the balance weights are fixedly connected with the crank arms.

Further, a second oil duct has been all seted up to the crank arm inside, the second oil duct is linked together with first oil storage tank, and is a plurality of first oil duct has all been seted up to the main journal inside, first oil duct is linked together with the second oil duct.

Furthermore, a third oil duct is formed in the rear shaft neck, the third oil duct is communicated with one of the second oil ducts, a fourth oil duct is formed in the front shaft neck, and the fourth oil duct is communicated with one of the second oil ducts.

The embodiment of the utility model provides a have following advantage:

the utility model discloses an at the outer end installation ring in connecting rod axle footpath, and a plurality of first balls of inner circle installation at the ring, a plurality of second balls of outer lane installation at the ring, make the outer end in first ball and connecting rod axle footpath contact, thereby can change the dry friction between connecting rod and the connecting rod axle footpath into rolling friction, in order to reduce the wearing and tearing of dry friction to connecting rod axle footpath, compare with prior art, the effectual frictional force that has reduced between connecting rod axle footpath and the connecting rod, thereby can reduce the wearing and tearing to connecting rod axle footpath, in order to avoid damaging the bent axle.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of the overall structure provided by the present invention;

fig. 2 is a cross-sectional view provided by the present invention;

fig. 3 is a cross-sectional view of the connecting rod shaft diameter and the ring provided by the present invention;

fig. 4 is a schematic structural view of the connecting rod diameter, the crank arm and the main journal provided by the present invention;

fig. 5 is an enlarged view of a in fig. 2 according to the present invention.

In the figure: the oil-gas balance structure comprises a connecting rod shaft diameter 1, a crank arm 2, a main journal 3, a rear journal 4, a front journal 5, a clamping groove 6, a first oil storage groove 7, a ring 8, a first ball 9, a second ball 10, a first through hole 11, a second through hole 12, a second oil storage groove 13, a balance weight 14, a first oil passage 15, a second oil passage 16, a third oil passage 17 and a fourth oil passage 18.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

Referring to the attached drawings 1-5 in the specification, the crankshaft structure with low friction force of the embodiment comprises a plurality of connecting rod shaft diameters 1, a plurality of crank arms 2, a plurality of main journals 3, a rear journal 4 and a front journal 5, wherein the plurality of crank arms 2 are respectively and fixedly arranged on two sides of each connecting rod shaft diameter 1, the main journal 3 is arranged between the two connecting rod shaft diameters 1, two ends of each main journal 3 are respectively and fixedly connected with the two crank arms 2, the rear journal 4 is fixedly arranged on one side of one crank arm 2, the front journal 5 is fixedly arranged on one side of the other crank arm 2, and an anti-friction mechanism is arranged at the outer end of each connecting rod shaft diameter 1;

antifriction mechanism includes a plurality of rings 8, ring 8 is established in 1 outer end of connecting rod diameter of axle, 8 inner walls of ring are equipped with a plurality of first balls 9,

first ball

9 and 8 inner wall fixed connection of ring, first ball 9 contacts with 1 outer end of connecting rod diameter of axle, 8 outer ends of ring are equipped with a plurality of second balls 10,

second ball

10 and 8 outer end fixed connection of ring.

Further, a first oil storage tank 7 is arranged inside the connecting rod shaft diameter 1, a plurality of second through holes 12 are formed in the connecting rod shaft diameter 1, the second through holes 12 are communicated with the first oil storage tank 7, lubricating oil is convenient to store, and lubricating oil is convenient to spray out through the second through holes 12.

Further, a second oil storage tank 13 has been seted up to ring 8 inside, a plurality of first through-holes 11 have been seted up at ring 8 top, first through-hole 11 is linked together with second oil storage tank 13, a plurality of third through-holes have been seted up to ring 8 bottom, the third through-hole is linked together with second oil storage tank 13, is convenient for store lubricating oil inside second oil storage tank 13 through the third through-hole to through first through-hole 11 blowout.

Further, draw-in groove 6 has been seted up to connecting rod diameter of axle 1 outer end, first ball 9 is established inside draw-in groove 6, is favorable to fixing first ball 9's position.

Furthermore, a plurality of the crank arms 2 are provided with a balance weight 14 at one end, and the balance weight 14 is fixedly connected with the crank arms 2, so that the balance of the rotating centrifugal force and the moment thereof is facilitated.

Further, a second oil duct 16 has been all seted up inside the crank arm 2, the second oil duct 16 is linked together with first oil storage tank 7, and is a plurality of first oil duct 15 has all been seted up inside the main journal 3, first oil duct 15 is linked together with second oil duct 16, is convenient for let in lubricating oil inside first oil storage tank 7.

Furthermore, a third oil duct 17 is formed in the rear journal 4, the third oil duct 17 is communicated with one of the second oil ducts 16, a fourth oil duct 18 is formed in the front journal 5, and the fourth oil duct 18 is communicated with one of the second oil ducts 16, so that lubricating oil can be conveniently introduced into the second oil ducts 18.

The implementation scenario is specifically as follows: when the utility model is used, the connecting rod is firstly installed at the outer end of the connecting rod shaft diameter 1, so that the inner wall of the connecting rod is contacted with the second ball 10, then when the connecting rod does reciprocating motion, the connecting rod can drive the connecting rod shaft diameter 1 to rotate through the second ball 10, the circular ring 8 and the first ball 9, so as to drive the whole crankshaft to rotate, in the process of rotating the connecting rod shaft diameter 1, the inner wall of the connecting rod can be contacted with the second ball 10 and can drive the second ball 10 to roll, so that only rolling friction exists between the connecting rod and the second ball 10, similarly, the rotation of the circular ring 8 can drive the first ball 9 to rotate, and the rotating first ball 9 drives the connecting rod shaft diameter 1 to rotate, so that the first ball 9 rolls at the outer end of the connecting rod shaft diameter 1, so that only rolling friction exists between the first ball 9 and the connecting rod shaft diameter 1, thereby effectively avoiding the abrasion of the connecting rod shaft diameter 1 caused by dry friction, and when the connecting rod operates for a certain period of time, the lubricating oil enters the plurality of second oil passages 16 through the first oil passage 15, the third oil passage 17 and the fourth oil passage 18, then enters the first oil storage tank 7 through a plurality of second oil channels 16, passes through the second through hole 12 under the action of centrifugal force generated by the rotation of the connecting rod shaft diameter 1, is sprayed out to be contacted with the outer end of the connecting rod shaft diameter 1, so that the frictional force between the first balls 9 and the outer end of the connecting rod shaft diameter 1 can be reduced, and part of the lubricating oil can move to the inside of the second oil reservoir 13 through the third through hole, then the second ball passes through the first through hole 11 to be sprayed out under the action of centrifugal force provided by rotation of the circular ring 8 and then contacts with the inner wall of the connecting rod, thereby effectively reducing the friction between the second ball 10 and the inner wall of the connecting rod, this embodiment specifically solves the problem in the prior art that the connecting rod shaft diameter is easily worn out due to the existence of dry friction.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a crankshaft structure that frictional force is low, includes a plurality of connecting rod footpath (1), a plurality of crank arm (2), a plurality of main journal (3), back axle journal (4) and preceding axle journal (5), and is a plurality of crank arm (2) are fixed respectively and are established in every connecting rod footpath (1) both sides, main journal (3) are established between two connecting rod footpaths (1), main journal (3) both ends respectively with two crank arm (2) fixed connection, back axle journal (4) are fixed to be established in one of them crank arm (2) one side, preceding axle journal (5) are fixed to be established in another crank arm (2) one side, its characterized in that: the outer end of the connecting rod shaft diameter (1) is provided with an antifriction mechanism;

antifriction mechanism includes a plurality of rings (8), establish in connecting rod diameter of axle (1) outer end ring (8), ring (8) inner wall is equipped with a plurality of first balls (9), first ball (9) and ring (8) inner wall fixed connection, first ball (9) contact with connecting rod diameter of axle (1) outer end, ring (8) outer end is equipped with a plurality of second balls (10), second ball (10) and ring (8) outer end fixed connection.

2. A low friction crankshaft structure as defined in claim 1, wherein: a first oil storage tank (7) is arranged inside the connecting rod shaft diameter (1), a plurality of second through holes (12) are arranged on the connecting rod shaft diameter (1), and the second through holes (12) are communicated with the first oil storage tank (7).

3. A low friction crankshaft structure as defined in claim 1, wherein: ring (8) inside second oil storage tank (13) have been seted up, a plurality of first through-holes (11) have been seted up at ring (8) top, first through-hole (11) are linked together with second oil storage tank (13), a plurality of third through-holes have been seted up to ring (8) bottom, the third through-hole is linked together with second oil storage tank (13).

4. A low friction crankshaft structure as defined in claim 1, wherein: the outer end of the connecting rod shaft diameter (1) is provided with a clamping groove (6), and the first ball (9) is arranged in the clamping groove (6).

5. A low friction crankshaft structure as defined in claim 1, wherein: wherein a plurality of crank arm (2) one end is equipped with balanced weight (14), balanced weight (14) and crank arm (2) fixed connection.

6. A low friction crankshaft structure as defined in claim 2, wherein: it is a plurality of second oil duct (16) have all been seted up to crank arm (2) inside, second oil duct (16) are linked together with first oil storage tank (7), and are a plurality of first oil duct (15) have all been seted up to main journal (3) inside, first oil duct (15) are linked together with second oil duct (16).

7. A low friction crankshaft structure as defined in claim 6, wherein: the rear journal (4) is internally provided with a third oil duct (17), the third oil duct (17) is communicated with one of the second oil ducts (16), the front journal (5) is internally provided with a fourth oil duct (18), and the fourth oil duct (18) is communicated with one of the second oil ducts (16).