CN220434885U - Transmission mechanism for engine connecting rod - Google Patents
Transmission mechanism for engine connecting rod Download PDFInfo
- Publication number
- CN220434885U CN220434885U CN202320818458.2U CN202320818458U CN220434885U CN 220434885 U CN220434885 U CN 220434885U CN 202320818458 U CN202320818458 U CN 202320818458U CN 220434885 U CN220434885 U CN 220434885U
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- Prior art keywords
- connecting rod
- oil
- cylinder
- engine
- piston
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 238000002347 injection Methods 0.000 claims abstract description 20
- 239000007924 injection Substances 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 abstract description 58
- 239000010687 lubricating oil Substances 0.000 abstract description 19
- 238000005461 lubrication Methods 0.000 abstract description 12
- 238000005299 abrasion Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a transmission mechanism for an engine connecting rod, which belongs to the technical field of connecting rod transmission mechanisms, and particularly relates to a transmission mechanism for an engine connecting rod, comprising a cylinder and a crank case, wherein a piston is arranged in the cylinder, a connecting rod is arranged in the crank case, and an oil wiper is arranged between the cylinder and the crank case; a connecting rod oil cavity is formed in the connecting rod, and the connecting rod oil cavity is of a hollow structure; the novel connecting rod oil cavity structure also comprises a connecting rod oil duct, wherein the connecting rod oil duct extends to the two ends of the connecting rod along the two ends of the connecting rod oil cavity respectively, and the novel connecting rod oil cavity structure has the beneficial effects that: by arranging the vertical injection oil duct on the engine injection lubrication connecting rod, the problem of uneven splashing of lubricating oil between an engine cylinder and a piston is avoided; the abrasion between the piston and the inner wall of the cylinder is effectively prevented, lubricating oil of the machine body is prevented from entering the cylinder, the running reliability of the whole machine can be greatly improved, the maintenance of the whole machine is reduced, and the service life of the whole machine is prolonged.
Description
Technical Field
The utility model relates to the technical field of connecting rod transmission mechanisms, in particular to a transmission mechanism for an engine connecting rod.
Background
At present, the domestic common natural gas engine mainly adopts multi-cylinder, four-stroke, small-bore air cylinders, high rotating speed and more easily damaged parts, and the connecting rod directly drives the piston to move, and the oil scraper ring is arranged on the piston. When the engine works to do work, the piston moves back and forth, and the piston directly acts on the connecting rod to enable the connecting rod to swing in the cylinder, and the lateral force of the swinging of the connecting rod acts on the piston, so that abrasion between the piston and the inner wall of the cylinder is caused, lubricating oil of an engine body oil tank is easier to enter the cylinder, and the dynamic property and reliability of the engine are further reduced. Because the domestic gas engine is developed and started later, research and development technology, processing technology, technology and equipment have a certain gap from the foreign developed countries, the equipment has poor dynamic property and reliability, large vibration, serious carbon deposit and abrasion and frequent maintenance, which is more unfavorable for the engine needing to work for a long time in the field;
the piston reciprocates in the engine cylinder, so that the force acting on the piston can be transmitted to the crankshaft through the piston connecting rod group more efficiently, and the lubricating effect between the piston and the cylinder is important; the main effects of lubrication between the cylinder and the piston include reducing frictional losses between the cylinder wall and the piston, preventing excessive wear from affecting life; auxiliary sealing; taking away combustion residues on the surface of the cylinder wall; noise is reduced; the lubrication mode between the engine piston and the cylinder comprises splash lubrication and cylinder oil injection lubrication. Splash lubrication is influenced by the rotating speed and the structure of the engine, the distribution of lubricating oil is uneven, the oil supply is unstable and cannot be controlled, and the lubrication effect is poor. The problem of poor lubrication effect due to uneven distribution of lubricating oil is also existed in the lubrication of the cylinder. It can be seen that the existing lubrication means and arrangements do not allow for a uniform distribution of the lubricating oil over the cylinder walls.
Disclosure of Invention
The present utility model has been made in view of the problems existing in the conventional transmission mechanism for an engine connecting rod.
Therefore, the utility model aims to provide a transmission mechanism for an engine connecting rod, which solves the problems that the power performance and reliability of equipment are poor, the vibration is large, the carbon deposit and abrasion are serious, the maintenance is frequent, the transmission mechanism is more unfavorable for an engine which needs to work for a long time in the field, and the existing lubrication mode and structure cannot uniformly distribute lubricating oil on the cylinder wall.
In order to solve the technical problems, according to one aspect of the present utility model, the following technical solutions are provided:
the transmission mechanism for the engine connecting rod comprises a cylinder and a crank box, wherein a piston is arranged in the cylinder, a connecting rod is arranged in the crank box, and an oil wiper is arranged between the cylinder and the crank box;
a connecting rod oil cavity is formed in the connecting rod, and the connecting rod oil cavity is of a hollow structure;
the connecting rod oil duct extends to the two ends of the connecting rod along the two ends of the connecting rod oil cavity respectively.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: the inner wall of the crank box is slidably matched with a cross head, and the piston rod and the connecting rod are hinged on the cross head.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: the vertical jet engine also comprises a plurality of vertical jet oil channels, wherein the vertical jet oil channels vertically extend to the surface of the connecting rod, and the plurality of vertical jet oil channels are in different parallel planes.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: the number of the vertical injection oil passages is at least 10.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: the plurality of vertical jet oil passages are in the same plane.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: the shape of the connecting rod oil cavity is cylindrical.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: the inner wall of the vertical jet oil duct is integrally formed with a prismatic table-shaped bulge, and the size of the bulge is gradually reduced according to the flowing direction.
As a preferable embodiment of the transmission mechanism for an engine connecting rod according to the present utility model, wherein: and a semi-cylindrical bulge is integrally formed on the inner wall of the vertical jet oil duct.
Compared with the prior art:
1. by arranging the vertical injection oil duct on the engine injection lubrication connecting rod, the problem of uneven splashing of lubricating oil between an engine cylinder and a piston is avoided;
2. the abrasion between the piston and the inner wall of the cylinder is effectively prevented, lubricating oil of the machine body is prevented from entering the cylinder, the running reliability of the whole machine can be greatly improved, the maintenance of the whole machine is reduced, and the service life of the whole machine is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present utility model;
FIG. 2 is a schematic view of a connecting rod according to embodiment 1 of the present utility model;
FIG. 3 is a cross-sectional view of FIG. 2 provided in example 1 of the present utility model;
fig. 4 is a cross-sectional view of a vertical injection oil passage provided in embodiment 1 of the present utility model.
In the figure: the cylinder 1, the crank case 2, the oil wiper 3, the cross head 4, the piston rod 5, the connecting rod 6, the connecting rod oil passage 61, the connecting rod oil chamber 62, the vertical injection oil passage 63, the piston 7, and the crank 8.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.
Example 1:
the utility model provides a transmission mechanism for an engine connecting rod, referring to fig. 1-4, which comprises a cylinder 1 and a crank case 2, wherein a piston 7 is arranged in the cylinder 1, a connecting rod 6 is arranged in the crank case 2, and an oil wiper 3 is arranged between the cylinder 1 and the crank case 2;
a connecting rod oil cavity 62 is arranged in the connecting rod 6, and the connecting rod oil cavity 62 is of a hollow structure;
and further comprises a connecting rod oil passage 61, wherein the connecting rod oil passage 61 extends to the two ends of the connecting rod 6 along the two ends of the connecting rod oil cavity 62.
A cross head 4 is slidably matched at the inner wall of the crank case 2, and a piston rod 5 and a connecting rod 6 are hinged on the cross head 4.
Also included are a plurality of vertical injection oil passages 63, the vertical injection oil passages 63 extending vertically to the surface of the connecting rod 6.
The number of the vertical injection oil passages 63 is at least 10, and the plurality of vertical injection oil passages 63 are in the same plane.
The connecting rod oil chamber 62 has a cylindrical outer shape, and a prismatic table-shaped protrusion is integrally formed on the inner wall of the vertical injection oil passage 63, and the size of the protrusion gradually decreases in accordance with the flow direction.
When the engine is in specific use, when the engine works, wellhead associated gas enters a combustion chamber of the cylinder I to be combusted and expanded, and the piston 7 is driven to work, so that the connecting rod 6 at the back is driven to drive the crank 8 to rotate to do work outwards. In the process, lubricating oil of a body oil tank enters the crank box 2 to lubricate the connecting rod 6 and the crank 8, and as the oil wiper 3 is arranged between the cylinder 1 and the crank box 2, the lubricating oil cannot enter the cylinder l, so that the phenomenon of carbon deposition caused by incomplete combustion of a combustion chamber of the cylinder l can be effectively prevented, abrasion between the piston 7 and the inner wall of the cylinder l caused by carbon deposition is avoided, the running reliability of equipment can be greatly improved, and the oil consumption and running cost of the equipment are reduced; when the engine works, wellhead associated gas in the combustion chamber burns to drive the piston 7 to do work outwards, at the moment, the connecting rod 6 swings up and down around the cross head 4 in the crank box 2 to apply lateral force on the cross head 4, and the piston 7 cannot bear the lateral force of the swinging of the connecting rod 6 at the moment, so that abrasion between the piston 7 and the inner wall of the cylinder 1 can be effectively prevented; in the reciprocating motion of the piston, due to the existence of pressure, lubricating oil can be uniformly sprayed onto the cylinder wall through the vertical spraying oil duct 63, then when the piston descends, the oil ring can be coated with a uniform oil film on the surface of the inner wall of the cylinder, the problem of uneven splashing of the lubricating oil between the cylinder and the piston of the engine is avoided by arranging the vertical spraying oil duct on the engine spraying lubricating connecting rod, and under the action of the prismatic-table-shaped bulge, the flow gradually breaks up and becomes larger, so that the lubricating oil is further lubricated.
Example 2:
unlike example 1, the following is: semi-cylindrical protrusions are integrally formed on the inner wall of the vertical injection oil passage 63.
When the engine is in specific use, when the engine works, wellhead associated gas enters a combustion chamber of the cylinder I to be combusted and expanded, and the piston 7 is driven to work, so that the connecting rod 6 at the back is driven to drive the crank 8 to rotate to do work outwards. In the process, lubricating oil of a body oil tank enters the crank box 2 to lubricate the connecting rod 6 and the crank 8, and as the oil wiper 3 is arranged between the cylinder 1 and the crank box 2, the lubricating oil cannot enter the cylinder l, so that the phenomenon of carbon deposition caused by incomplete combustion of a combustion chamber of the cylinder l can be effectively prevented, abrasion between the piston 7 and the inner wall of the cylinder l caused by carbon deposition is avoided, the running reliability of equipment can be greatly improved, and the oil consumption and running cost of the equipment are reduced; when the engine works, wellhead associated gas in the combustion chamber burns to drive the piston 7 to do work outwards, at the moment, the connecting rod 6 swings up and down around the cross head 4 in the crank box 2 to apply lateral force on the cross head 4, and the piston 7 cannot bear the lateral force of the swinging of the connecting rod 6 at the moment, so that abrasion between the piston 7 and the inner wall of the cylinder 1 can be effectively prevented; in the reciprocating motion of the piston, due to the existence of pressure, lubricating oil can be uniformly sprayed onto the cylinder wall through the vertical spraying oil duct 63, then when the piston descends, the oil ring can be coated with a uniform oil film on the surface of the inner wall of the cylinder, the problem of uneven splashing of the lubricating oil between the cylinder and the piston of the engine is avoided by arranging the vertical spraying oil duct on the engine spraying lubricating connecting rod, and under the action of the semi-cylindrical bulge, the flow gradually breaks up and becomes larger, so that the lubricating oil is further lubricated.
Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a drive mechanism for engine connecting rod, includes cylinder (1) and crankcase (2), is provided with piston (7) in cylinder (1), is provided with connecting rod (6) in crankcase (2), its characterized in that: an oil wiper (3) is arranged between the air cylinder (1) and the crank case (2);
a connecting rod oil cavity (62) is formed in the connecting rod (6), and the connecting rod oil cavity (62) is of a hollow structure;
the connecting rod oil cavity (62) is characterized by further comprising a connecting rod oil channel (61), wherein the connecting rod oil channel (61) extends to the two ends of the connecting rod (6) along the two ends of the connecting rod oil cavity (62).
2. A transmission for an engine connecting rod according to claim 1, characterized in that a cross head (4) is slidably fitted at the inner wall of the crank housing (2), and that the piston rod (5) and the connecting rod (6) are hinged to the cross head (4).
3. A transmission for an engine connecting rod according to claim 1, further comprising a plurality of vertical injection oil channels (63), said vertical injection oil channels (63) extending vertically to the surface of said connecting rod (6), the plurality of vertical injection oil channels (63) being in different planes that are parallel.
4. A transmission for an engine connecting rod according to claim 3, characterized in that the number of vertical injection oil passages (63) is at least 10.
5. A transmission for an engine connecting rod according to claim 1, characterized in that the plurality of vertical jet oil passages (63) are in the same plane.
6. A transmission mechanism for an engine connecting rod according to claim 1, wherein said connecting rod oil chamber (62) has a cylindrical external shape.
7. A transmission mechanism for an engine connecting rod according to claim 3, characterized in that the inner wall of the vertical injection oil passage (63) is integrally formed with a prismatic table-shaped protrusion, the size of the protrusion being gradually smaller in accordance with the flow direction.
8. A transmission for an engine connecting rod according to claim 3, characterized in that the inner wall of the vertical injection oil passage (63) is integrally formed with a semi-cylindrical protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818458.2U CN220434885U (en) | 2023-04-13 | 2023-04-13 | Transmission mechanism for engine connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320818458.2U CN220434885U (en) | 2023-04-13 | 2023-04-13 | Transmission mechanism for engine connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220434885U true CN220434885U (en) | 2024-02-02 |
Family
ID=89699108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320818458.2U Active CN220434885U (en) | 2023-04-13 | 2023-04-13 | Transmission mechanism for engine connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220434885U (en) |
-
2023
- 2023-04-13 CN CN202320818458.2U patent/CN220434885U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |