CN207879485U - A kind of powder metallurgy oil-free lubricating high pressure piston - Google Patents
A kind of powder metallurgy oil-free lubricating high pressure piston Download PDFInfo
- Publication number
- CN207879485U CN207879485U CN201721903927.1U CN201721903927U CN207879485U CN 207879485 U CN207879485 U CN 207879485U CN 201721903927 U CN201721903927 U CN 201721903927U CN 207879485 U CN207879485 U CN 207879485U
- Authority
- CN
- China
- Prior art keywords
- piston
- chong channel
- channel ascending
- ascending adversely
- cylinder block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of powder metallurgy oil-free lubricating high pressure pistons, including cylinder block, the cylinder block inner wall offers reversed air-filled pore, inside the reversed air-filled pore convolution air drain is offered at the end, it is socketed with piston inside the cylinder block, the top land offers active blowhole, the piston outer wall central segment offers qi of chong channel ascending adversely slot, the qi of chong channel ascending adversely slot inner wall offers positive qi of chong channel ascending adversely hole, the piston outer wall central segment offers qi of chong channel ascending adversely slot, the qi of chong channel ascending adversely slot inner wall offers positive qi of chong channel ascending adversely hole, the piston lower surface is provided with connection card at center, it is connect with link rotatable by the first movable rotation-shaft below the connection card.In the utility model, the device with the first movable rotation-shaft and the second movable rotation-shaft with connection card and promotion skirt part by being attached respectively at the both ends of connecting rod so that is pushed skirt part activity more smooth, is improved the multi-angle movement effects of the device.
Description
Technical field
The utility model is related to piston technical field more particularly to a kind of powder metallurgy oil-free lubricating high pressure pistons.
Background technology
Piston is parts reciprocating in Motor Engine Cylinder body.The basic structure of piston can be divided into top, head
Portion and skirt section, top land are the major parts for forming combustion chamber, and shape is related with selected combustion-chamber shape, gasoline engine
Flat-head piston is mostly used, its advantage is that endotherm area is small, usually has various pits, specific shape at the top of diesel engine piston
Shape, position and size must be all adapted with the mixed Daqu of diesel engine and the requirement of burning.
And what most piston of existing market used makes oil lubrication, frictional force is larger in piston operational process, leads
The service life of activation plug is shorter, it is difficult to meet the needs of people.
Utility model content
Purpose of the utility model is to solve disadvantage existing in the prior art, and a kind of powder metallurgy proposed without
Oil lubrication high pressure piston.
To achieve the goals above, the utility model uses following technical solution：A kind of powder metallurgy oil-free lubricating is high
Piston, including cylinder block, the cylinder block inner wall is pressed to offer reversed air-filled pore, opened up at the reversed air-filled pore inside end
There is convolution air drain, piston is socketed with inside the cylinder block, the top land offers active blowhole, the piston outer wall
Central segment offers qi of chong channel ascending adversely slot, and the qi of chong channel ascending adversely slot inner wall offers positive qi of chong channel ascending adversely hole, and the piston lower surface is provided at center
Connection card, the connection card lower section are connect by the first movable rotation-shaft with link rotatable, pass through the second activity below the connecting rod
Shaft is connect with skirt part is pushed.
As further describing for above-mentioned technical proposal：
The reversed air-filled pore is connected with convolution air drain.
As further describing for above-mentioned technical proposal：
The reversed air-filled pore offers eight altogether, and eight reversed air-filled pores are between any two about cylinder block center line phase
It is mutually symmetrical.
As further describing for above-mentioned technical proposal：
The outer diameter size of the piston is identical as the inner diameter size of cylinder block.
As further describing for above-mentioned technical proposal：
The forward direction qi of chong channel ascending adversely hole is connected with active qi of chong channel ascending adversely hole.
As further describing for above-mentioned technical proposal：
The forward direction air-filled pore offers eight altogether, and eight positive air-filled pores are mutual about piston centreline between any two
Symmetrically.
In the utility model, first, it is movable with the first movable rotation-shaft and second respectively at the both ends of connecting rod which passes through
Shaft is attached with connection card and promotion skirt part so that is pushed skirt part activity more smooth, is improved the multi-angle of the device
Movement effects, secondly, the device are opened up by offering reversed air-filled pore in cylinder block inner wall at the end of reversed air-filled pore inside
There is a convolution air drain, while active blowhole is offered in top land, piston outer wall central segment offers qi of chong channel ascending adversely slot, in qi of chong channel ascending adversely slot
Wall offers positive qi of chong channel ascending adversely hole so that the high pressure gas inside convolution air drain generates centainly piston outer wall in reflux course
Impact force reduces the frictional force between piston and cylinder block, to keep piston motion more smooth.
Description of the drawings
Fig. 1 be the utility model proposes a kind of powder metallurgy oil-free lubricating high pressure piston structural schematic diagram；
Fig. 2 is the utility model piston structure schematic diagram；
Fig. 3 is the utility model cylinder block vertical view.
Marginal data：
The reversed qi of chong channel ascending adversely hole 1- cylinder block, 2-, 3- pistons, 4- connection cards, the first movable rotation-shafts of 5-, 6- connecting rods, 7- second live
Turn axis, 8- push skirt part, 9- actives blowhole, 10- qi of chong channel ascending adversely slot, 11- forward direction qi of chong channel ascending adversely hole, 12- convolution air drains.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of powder metallurgy oil-free lubricating high pressure piston, including cylinder block 1,1 inner wall of cylinder block offer
Reversed air-filled pore 2 offers convolution air drain 12 at the 2 inside end of reversed air-filled pore, piston 3, piston is socketed with inside cylinder block 1
3 tops offer active blowhole 9, and 3 outer wall central segment of piston offers qi of chong channel ascending adversely slot 10, and 10 inner wall of qi of chong channel ascending adversely slot offers positive punching
Stomata 11, connection card 4 is provided at 3 lower surface center of piston, and 4 lower section of connection card passes through the first movable rotation-shaft 5 and rotated with connecting rod 6
Connection, 6 lower section of connecting rod are connect by the second movable rotation-shaft 7 with skirt part 8 is pushed.
3 top air pressure of piston is much larger than 3 bottom air pressure of piston, and reversed air-filled pore 2 is connected with convolution air drain 12, reversely fills
Stomata 2 offers eight altogether, and eight reversed air-filled pores 2 are symmetrical about 1 center line of cylinder block between any two, piston 3
Outer diameter size is identical as the inner diameter size of cylinder block 1, and positive qi of chong channel ascending adversely hole 11 is connected with active qi of chong channel ascending adversely hole 9, positive air-filled pore 11
Eight are offered altogether, and eight positive air-filled pores 11 are symmetrical about 3 center line of piston between any two, which passes through even
The both ends of bar 6 are attached with the first movable rotation-shaft 5 and the second movable rotation-shaft 7 with connection card 4 and promotion skirt part 8 respectively so that
It pushes 8 activity of skirt part more smooth, improves the multi-angle movement effects of the device.
Operation principle：In use, first when piston 3 is when moving downward, 1 inner wall of cylinder block is located at the anti-of 3 top of piston
It can be filled with high pressure gas to air-filled pore 2, and enter in convolution air drain 12 and stored, when piston 3 is when moving upwards, this is reversed
Air-filled pore 2 can be first closed, and when the qi of chong channel ascending adversely slot 10 of 3 central segment of piston enters reversed 2 position of air-filled pore, be circled round in air drain 12
High pressure gas can reversely pour in qi of chong channel ascending adversely slot 10, and be back to 3 top of piston, reflux course mesohigh again from active blowhole
Gas can generate 3 outer wall of piston certain impact force, reduce the frictional force between piston 3 and cylinder block 1, to make piston 3
Movement is more smooth.
The preferable specific implementation mode of the above, only the utility model, but the scope of protection of the utility model is not
Be confined to this, any one skilled in the art within the technical scope disclosed by the utility model, according to this practicality
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (6)
1. a kind of powder metallurgy oil-free lubricating high pressure piston, including cylinder block (1), which is characterized in that cylinder block (1) inner wall
Reversed air-filled pore (2) is offered, convolution air drain (12), the cylinder block are offered at the internal end of reversed air-filled pore (2)
(1) internal to be socketed with piston (3), offer active blowhole (9), piston (3) the outer wall central segment at the top of the piston (3)
Qi of chong channel ascending adversely slot (10) is offered, qi of chong channel ascending adversely slot (10) inner wall offers positive qi of chong channel ascending adversely hole (11), piston (3) the lower surface center
Place is provided with connection card (4), is rotatablely connected by the first movable rotation-shaft (5) and connecting rod (6) below the connection card (4), described
It is connect by the second movable rotation-shaft (7) with skirt part (8) is pushed below connecting rod (6).
2. a kind of powder metallurgy oil-free lubricating high pressure piston according to claim 1, which is characterized in that the reversed inflation
Hole (2) is connected with convolution air drain (12).
3. a kind of powder metallurgy oil-free lubricating high pressure piston according to claim 1, which is characterized in that the reversed inflation
Hole (2) offers eight altogether, and eight reversed air-filled pores (2) are symmetrical about cylinder block (1) center line between any two.
4. a kind of powder metallurgy oil-free lubricating high pressure piston according to claim 1, which is characterized in that the piston (3)
Outer diameter size it is identical as the inner diameter size of cylinder block (1).
5. a kind of powder metallurgy oil-free lubricating high pressure piston according to claim 1, which is characterized in that the forward direction qi of chong channel ascending adversely
Hole (11) is connected with active qi of chong channel ascending adversely hole (9).
6. a kind of powder metallurgy oil-free lubricating high pressure piston according to claim 1, which is characterized in that the positive inflation
Hole (11) offers eight altogether, and eight positive air-filled pores (11) are symmetrical about piston (3) center line between any two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721903927.1U CN207879485U (en) | 2017-12-29 | 2017-12-29 | A kind of powder metallurgy oil-free lubricating high pressure piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721903927.1U CN207879485U (en) | 2017-12-29 | 2017-12-29 | A kind of powder metallurgy oil-free lubricating high pressure piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207879485U true CN207879485U (en) | 2018-09-18 |
Family
ID=63504563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721903927.1U Expired - Fee Related CN207879485U (en) | 2017-12-29 | 2017-12-29 | A kind of powder metallurgy oil-free lubricating high pressure piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207879485U (en) |
-
2017
- 2017-12-29 CN CN201721903927.1U patent/CN207879485U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 Termination date: 20201229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |