CN211975333U

CN211975333U - Connecting rod

Info

Publication number: CN211975333U
Application number: CN201922441998.XU
Authority: CN
Inventors: 刘海江
Original assignee: Suzhou Honbase Machinery Manufacture Co ltd
Current assignee: Suzhou Honbase Machinery Manufacture Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-11-20
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a connecting rod, which comprises a rod body, a big head part and a small head part which are respectively arranged at two ends of the rod body, wherein a first shaft hole matched with a crankshaft is arranged in the big head part, a second shaft hole matched with a piston pin is arranged in the small head part, a first oil guide groove is arranged on the circumferential surface of the big head part, the first oil guide groove is used for conveying lubricating oil to the first shaft hole, and a first oil storage groove for storing the lubricating oil is arranged on the inner wall of the big head part; the periphery of little head is provided with the second and leads the oil groove, the second is led the oil groove and is used for to the second shaft hole conveying lubricating oil, the inner wall of little head is provided with and is used for the storage the second oil storage tank of lubricating oil. Oil groove and oil storage tank simple structure lead in this connecting rod, processing is convenient, has reduced the deckle edge on the connecting rod, guarantees its and piston pin or bent axle between the cooperation to guarantee the life of connecting rod.

Description

Connecting rod

Technical Field

The utility model relates to the technical field of machinery, especially, relate to a connecting rod of air compressor machine.

Background

The air compressor is used as an air source capable of providing clean air, has a very wide market in industries with high requirements on air quality, such as medical treatment, food, chemical industry and the like, and has multiple compression modes, wherein one piston type air compressor realizes air compression by driving a connecting rod piston to reciprocate in an air cylinder through the rotation of a crankshaft, and in the piston type air compressor, the connecting rod is one of important components.

Because connecting rod both ends and matched with piston pin, do not assemble the bearing between the bent axle, adopt the lubricated mode of machine oil, consequently, can be provided with the oilhole in the connecting rod, the oil groove, current oilhole, the oil groove sets up in the inner wall of main hole, radially set up along the main hole inner wall, because die casting die's design reason, to current oilhole, the oil groove needs to adopt the mode processing of golden work, and there is the requirement of lining up mutually between the processing of these positions all and the main hole, can produce processing aluminium bits or burr when adding man-hour, and the fit clearance between connecting rod and piston pin or the bent axle is very little, aluminium bits or burr can make the connecting rod card die, thereby make the product inefficacy.

Disclosure of Invention

The utility model aims at providing a connecting rod leads oil groove and oil storage tank simple structure in this connecting rod, and processing is convenient, has reduced deckle edge on the connecting rod, guarantees the cooperation between its and piston pin or the bent axle to guarantee the life of connecting rod.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a connecting rod comprises a rod body, a large head part and a small head part, wherein the large head part and the small head part are respectively arranged at two ends of the rod body, a first shaft hole matched with a crankshaft is arranged in the large head part, a second shaft hole matched with a piston pin is arranged in the small head part, a first oil guide groove is arranged on the circumferential surface of the large head part, the first oil guide groove is used for conveying lubricating oil to the first shaft hole, and a first oil storage groove used for storing the lubricating oil is arranged on the inner wall of the large head part; the periphery of little head is provided with the second and leads the oil groove, the second is led the oil groove and is used for to the second shaft hole conveying lubricating oil, the inner wall of little head is provided with and is used for the storage the second oil storage tank of lubricating oil.

In the technical scheme, the first oil storage tank is arranged on the inner wall of the large head part along the axial direction, and the second oil storage tank is arranged on the inner wall of the small head part along the axial direction.

In the technical scheme, the first oil guide groove comprises two first oil guide grooves which are oppositely arranged on the circumferential surface of the large head part, and each first oil guide groove is provided with one first oil storage groove at the side edge.

In the above technical scheme, the second oil guide groove comprises one oil guide groove, and the oil guide groove and the connecting rod are arranged oppositely.

Among the above-mentioned technical scheme, the second oil storage tank includes threely, and is three the second oil storage tank is in the inner wall of little head is isosceles triangle and sets up.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. the utility model discloses in set up the first oil groove of leading on the periphery of major part, the first oil groove of leading is used for conveying lubricating oil to the first shaft hole, inner wall at major part is provided with the first oil storage tank that is used for saving lubricating oil, the first oil storage tank sets up along the axial at the inner wall of major part, the setting of first oil groove of leading and first oil storage tank can be directly through the processing mode shaping of die-casting, the processing mode is simple and convenient, need not subsequent golden processing, the aluminium bits or the burr of first oil storage tank and first oil groove department have been reduced, guarantee the cooperation of first shaft hole and bent axle and use, prevent the connecting rod card dead; in a similar way, the oil groove is led to the second and the processing mode shaping of die-casting is also utilized to the second oil storage tank, reduce the aluminium bits or the burr that oil groove department was led to second oil storage tank and second, guarantee the cooperation of second axle hole and piston pin and use, consequently, this connecting rod structure when guaranteeing original lubricated effect, has simplified processing technology, has reduced the aluminium bits or the burr that carry on the connecting rod, guarantee its and piston pin or the cooperation between the bent axle to guarantee the life of connecting rod.

Drawings

FIG. 1 is a first schematic view of a connecting rod structure of the present invention;

fig. 2 is a front view of the middle connecting rod of the present invention.

Wherein: 1. a rod body; 2. a large head; 3. a small head; 4. a first shaft hole; 5. a second shaft hole; 6. A first oil guide groove; 7. a first oil reservoir; 8. a second oil guide groove; 9. a second oil reservoir.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

the first embodiment is as follows: referring to fig. 1-2, a connecting rod comprises a rod body 1, a large head 2 and a small head 3 which are respectively arranged at two ends of the rod body 1, wherein a first shaft hole 4 matched with a crankshaft is arranged in the large head 2, a second shaft hole 5 matched with a piston pin is arranged in the small head 3, a first oil guide groove 6 is arranged on the circumferential surface of the large head 2, the first oil guide groove 6 is used for conveying lubricating oil to the first shaft hole 4, and a first oil storage groove 7 used for storing the lubricating oil is arranged on the inner wall of the large head 2; be provided with the second on the periphery of little head 3 and lead oil groove 8, oil groove 8 is led to the second be used for to second shaft hole 5 conveying lubricating oil, the inner wall of little head 3 is provided with and is used for the storage second oil storage tank 9 of lubricating oil. Oil groove and oil storage tank simple structure lead in this connecting rod, processing is convenient, has reduced the deckle edge on the connecting rod, guarantees its and piston pin or bent axle between the cooperation to guarantee the life of connecting rod.

Referring to fig. 1, the first oil reservoir 7 is axially provided in the inner wall of the large head portion 2, and the second oil reservoir 9 is axially provided in the inner wall of the small head portion 3.

Referring to fig. 1, the first oil guide grooves 6 include two first oil guide grooves 6, the two first oil guide grooves 6 are oppositely disposed on the circumferential surface of the large head portion 2, and a first oil storage groove 7 is disposed on a side edge of each first oil guide groove 6.

Referring to fig. 1, the second oil guide groove 8 includes one, and the oil guide groove is disposed opposite to the connecting rod. The second oil storage tank 9 comprises three oil storage tanks, and the number of the oil storage tanks is three, and the inner wall of the small head part 3 is in an isosceles triangle shape.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a connecting rod, includes the body of rod, set up respectively in big head and little head at body of rod both ends, be provided with in the big head with bent axle matched with first shaft hole, be provided with in the little head with piston pin matched with second shaft hole, its characterized in that: a first oil guide groove is formed in the circumferential surface of the large head part and used for conveying lubricating oil to the first shaft hole, and a first oil storage groove used for storing the lubricating oil is formed in the inner wall of the large head part; the periphery of little head is provided with the second and leads the oil groove, the second is led the oil groove and is used for to the second shaft hole conveying lubricating oil, the inner wall of little head is provided with and is used for the storage the second oil storage tank of lubricating oil.

2. The connecting rod of claim 1, wherein: the first oil storage tank is arranged on the inner wall of the large head part along the axial direction, and the second oil storage tank is arranged on the inner wall of the small head part along the axial direction.

3. The connecting rod of claim 1, wherein the first oil guide grooves include two first oil guide grooves disposed opposite to each other on the circumferential surface of the large head portion, and one first oil storage groove is disposed on a side of each of the first oil guide grooves.

4. The connecting rod of claim 1, wherein: the second oil guide groove comprises one oil guide groove, and the oil guide groove is opposite to the connecting rod.

5. The connecting rod of claim 1, wherein: the second oil storage tank includes three, and is three the second oil storage tank is in the inner wall of little head is isosceles triangle and sets up.