CN217736016U

CN217736016U - Crankshaft of engine

Info

Publication number: CN217736016U
Application number: CN202221432881.0U
Authority: CN
Inventors: 谢华
Original assignee: Chongqing Huaxing Heat Treatment Co ltd
Current assignee: Chongqing Huaxing Heat Treatment Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-11-04
Anticipated expiration: 2032-06-09

Abstract

The utility model relates to the field of engines, in particular to an engine crankshaft, which comprises two main journals, two crank arms, a connecting rod journal and a protection component, wherein the protection component comprises a sliding sleeve, a plurality of rotating rods, a plurality of balls and two connectors; the connecting rod neck has a plurality of recesses, and a plurality of balls set up in the recess, and two connectors set up in the both sides of connecting rod neck, and the dwang rotates and sets up between two connectors to contact the ball, a plurality of dwangs distribute around the connecting rod neck, and the slip ways is established in a plurality of dwang outsides, and two crank arms set up respectively in two connector outsides, and two main journals set up the one side at two crank arms respectively. Support the connector through two crank arms, two main journals set up respectively in one side of two crank arms, and two main journals support the crank arm. Thereby can rotate in order to reduce friction through the relative ball of dwang and sliding sleeve, improve life.

Description

Engine crankshaft

Technical Field

The utility model relates to an engine field especially relates to an engine crankshaft.

Background

The engine crankshaft is used for driving the crankshaft to rotate, so as to drive the cylinder to move up and down, but the connection part of the existing engine and the crankshaft is easy to wear.

In order to solve the problems, in the prior art, a sliding sleeve is arranged at the joint of the engine crankshaft and the crank, and lubricating oil is arranged between the sliding sleeve and the engine crankshaft for lubrication, so that the abrasion is reduced.

However, by adopting the device, the sliding sleeve and the crankshaft are in surface contact, the abrasion is still large, and the service life of the crankshaft is limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engine crankshaft aims at can reducing the wearing and tearing that the bent axle produced better in order to improve life.

In order to achieve the purpose, the utility model provides an engine crankshaft, which comprises two main journals, two crank arms, a connecting rod journal and a protection component, wherein the protection component comprises a sliding sleeve, a plurality of rotating rods, a plurality of balls and two connectors; the connecting rod neck has a plurality of recesses, and is a plurality of the ball sets up in the recess, two the connector sets up the both sides of connecting rod neck, the dwang rotates to set up two between the connector, and contact the ball, it is a plurality of the dwang distributes around the connecting rod neck, the slip ways is established a plurality of the dwang outside, two the crank arm sets up respectively two the connector outside, two the main shaft sets up respectively two one side of crank arm.

Wherein, the protection subassembly still includes the spacing ring, the spacing ring with connector fixed connection, and be close to the dwang.

The protection assembly further comprises a plurality of rotating rings, and the rotating rings are connected with the limiting rings in a rotating mode and are close to the rotating rods respectively.

Wherein, the connector includes connector body and sealed head, the connector body has the oiling mouth, sealed head with connector body threaded connection, and be located in the oiling mouth.

The connecting head body is provided with a branch oil duct, and the branch oil duct is communicated with the oil filling port and the connecting rod neck.

The connector further comprises a sealing ring, the sealing ring is fixedly connected with the sealing head and is positioned at one side, close to the oil filling port, of the sealing head.

The utility model discloses an engine crankshaft, the connecting rod neck has a plurality of recesses, and is a plurality of the ball sets up in the recess, the ball can roll in the recess, two the connector sets up the both sides of connecting rod neck are through two the connector supports the connecting rod neck, the dwang rotates to set up two between the connector, and contact the ball, the dwang can be relative the ball rotates, and is a plurality of the dwang distributes around the connecting rod neck, the slip cap cover is established at a plurality of the dwang outside is through a plurality of the dwang is right the pivoted lever is right the slip cap supports, two the crank arm sets up respectively two the connector outside is through two the crank arm is right the connector supports, two the main shaft sets up respectively two one side of crank arm, two the main shaft is right the crank arm supports. Therefore, the friction can be reduced by rotating the rotating rod relative to the ball and the sliding sleeve, and the service life is prolonged.

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 is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a structural view of embodiment 1.

FIG. 2 is a schematic longitudinal sectional view of example 1.

Fig. 3 is an enlarged view of a detail a of fig. 2.

FIG. 4 is a schematic transverse sectional view of example 1.

FIG. 5 is a schematic cross-sectional view of example 2.

101-main journal, 102 crank arm, 103-connecting rod journal, 104-protective component, 105-sliding sleeve, 106-rotating rod, 107-ball, 108-connecting head, 109-groove; 201-a limiting ring, 202-a rotating ring, 301-a connector body, 302-a sealing head, 303-a branch oil channel, 304-a sealing ring and 305-an oil filling port.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The first embodiment of the present application is:

referring to fig. 1 to 4, the present invention provides an engine crankshaft: the crank arm structure comprises two main journals 101, two crank arms 102, a connecting journal 103 and a protection assembly 104, wherein the protection assembly 104 comprises a sliding sleeve 105, a plurality of rotating rods 106, a plurality of balls 107 and two connectors 108; connecting rod neck 103 has a plurality of recesses 109, and is a plurality of ball 107 sets up in recess 109, two the connector 108 sets up connecting rod neck 103's both sides, dwang 106 rotates to set up two between the connector 108, and contact ball 107, and is a plurality of dwang 106 distributes connecting rod neck 103 is all around, slip cap 105 cover is established a plurality of the dwang 106 outside, two crank arm 102 sets up two respectively the connector 108 outside, two main journal 101 sets up two respectively one side of crank arm 102. The protection component 104 further comprises a limiting ring 201, the limiting ring 201 is fixedly connected with the connecting head 108 and is close to the rotating rod 106. The protection assembly 104 further includes a plurality of rotating rings 202, and the plurality of rotating rings 202 are rotatably connected to the limiting ring 201 and respectively close to the rotating rod 106.

Connecting rod neck 103 has a plurality of recesses 109, and is a plurality of ball 107 sets up in the recess 109, ball 107 can roll in the recess 109, two connector 108 sets up connecting rod neck 103's both sides are through two connector 108 supports connecting rod neck 103, dwang 106 rotates to set up two between the connector 108, and contact ball 107, dwang 106 can be relative ball 107 rotates, and is a plurality of dwang 106 distributes connecting rod neck 103 is all around, sliding sleeve 105 cover is established a plurality of the dwang outside is through a plurality of dwang 106 is right sliding sleeve 105 supports, sliding sleeve 105 is used for connecting with the crank, two crank arm 102 sets up respectively in two the connector 108 outside, through two crank arm 102 is right connecting head 108 supports, two main shaft neck 101 sets up respectively two one side of crank arm 102, two the dwang main shaft neck 101 is right crank arm 102 supports, thereby can pass through ball 106 is relative ball 107 with sliding sleeve 105 rotates with reduce friction, improves life. The spacing ring 201 can be right the position of dwang 106 is restricted, makes the dwang 106 rotates more stably, the rotating ring 202 can follow the dwang 106 rotates together, avoids right the spacing ring 201 produces friction, improves life.

The second embodiment of the present application is:

referring to fig. 5, on the basis of the first embodiment, the connector 108 of the present invention includes a connector body 301 and a sealing head 302, the connector body 301 has an oil filling port 305, and the sealing head 302 is connected with the connector body 301 by screw threads and is located in the oil filling port 305. The connecting head body 301 is provided with a branch oil passage 303, and the branch oil passage 303 is communicated with the oil filling port 305 and the connecting rod neck 103. The connecting head 108 further includes a sealing ring 304, wherein the sealing ring 304 is fixedly connected to the sealing head 302 and is located on a side of the sealing head 302 close to the oil filling port 305.

In order to further improve life, can set up oiling mouth 305 on connector body 301 for lubricating oil can follow oiling mouth 305 is put into, then enters into dwang 106 with lubricate between the ball 107, through divide oil duct 303 can be more conveniently distribute lubricating oil a plurality of near dwang 106, sealing washer 304 can increase sealed head 302 with sealing performance between the connector body 301 avoids leaking.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.

Claims

1. An engine crankshaft comprises two main journals, two crank arms, connecting journals and a protective component, and is characterized in that,

the protection assembly comprises a sliding sleeve, a plurality of rotating rods, a plurality of balls and two connectors;

the connecting rod neck has a plurality of recesses, and is a plurality of the ball sets up in the recess, two the connector sets up the both sides of connecting rod neck, the dwang rotates to set up two between the connector, and contact the ball, it is a plurality of the dwang distributes the connecting rod neck is all around, the slip ways is established a plurality of the dwang outside, two the crank arm sets up respectively two in the connector outside, two the main shaft sets up respectively two one side of crank arm.

2. An engine crankshaft according to claim 1,

the protection subassembly still includes the spacing ring, the spacing ring with connector fixed connection, and be close to the dwang.

3. An engine crankshaft according to claim 2,

the protection component further comprises a plurality of rotating rings, and the rotating rings are connected with the limiting rings in a rotating mode and are close to the rotating rods respectively.

4. An engine crankshaft according to claim 1,

the connector includes connector body and sealed head, the connector body has the oiling mouth, sealed head with connector body threaded connection, and be located in the oiling mouth.

5. An engine crankshaft according to claim 4,

the connector body is provided with a branch oil duct which is communicated with the oil filling port and the connecting rod neck.

6. An engine crankshaft according to claim 5,

the connector still includes the sealing washer, the sealing washer with sealed first fixed connection, and be located sealed first being close to one side of oiling mouth.