CN211777738U - Piston and piston assembly - Google Patents
Piston and piston assembly Download PDFInfo
- Publication number
- CN211777738U CN211777738U CN201922398216.9U CN201922398216U CN211777738U CN 211777738 U CN211777738 U CN 211777738U CN 201922398216 U CN201922398216 U CN 201922398216U CN 211777738 U CN211777738 U CN 211777738U
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- CN
- China
- Prior art keywords
- piston
- piston body
- cavity
- fixedly connected
- heating panel
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- 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
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000001154 acute effect Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 16
- 230000007797 corrosion Effects 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 20
- 239000007789 gas Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a piston and piston assembly, including the piston body, the cavity has been seted up at the top of piston body, and the inner chamber sliding connection of cavity has the heating panel, and the arc wall has been seted up to the bottom of heating panel, and the internal surface of cavity has seted up the louvre, and the contained angle between louvre and the piston body cross section is the acute angle, the utility model relates to a piston technical field. This piston and piston assembly, through the heating panel, the arc wall, the louvre, L type dog, the cooperation of connecting rod and pneumatic cylinder, make pneumatic cylinder promote to drive the heating panel and reciprocate, bring the air of outside into the cavity, then the hot-air in the extrusion piston body, pass through the louvre with the hot-air and discharge, and through being equipped with the arc wall, the heating panel can carry more outside air, carry the outside cold air entering cavity and the hot-air in the louvre discharge cavity of piston body through the heating panel, better radiating effect has been reached, the life of piston body has been prolonged.
Description
Technical Field
The utility model relates to a piston technical field specifically is a piston and piston assembly.
Background
The piston is a movable plug, usually used as a reciprocating element in the cylinder block of an automobile engine, and its basic structure can be divided into a top part, a head part and a skirt part. The piston crown is the main part that makes up the combustion chamber and its shape is related to the combustion chamber form chosen. The gasoline engine mostly adopts a flat-top piston, and has the advantage of small heat absorption area. Various pits are usually arranged on the top of a piston of the diesel engine, the specific shape, position and size of the pits are adaptive to the requirements of forming and burning mixed gas of the diesel engine, the top of the piston bears great gas pressure, particularly the pressure of a work stroke is maximum, a gasoline engine is up to 3-5 MPa, and a diesel engine is up to 6-9 MPa, so that the piston generates impact and bears the action of lateral pressure; the piston reciprocates in the cylinder at a high speed (8-12 m/s) and the speed is constantly changed, so that a large inertia force is generated, and the piston is subjected to a large additional load. The pistons work under such severe conditions, generating deformations and accelerated wear, as well as additional loads and thermal stresses, and are subject to chemical corrosion by the gases.
The existing piston works under the conditions of high temperature, high pressure, high speed and poor lubrication, the piston is directly contacted with high-temperature gas, the instantaneous temperature can reach more than 2500K, and therefore the piston is seriously heated, the heat dissipation condition is poor, the temperature of the piston is very high during working, and the service life of the piston is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a piston and piston assembly has solved current piston and has worked under high temperature, high pressure, high speed, lubricated bad condition, and the piston is direct to be contacted with high-temperature gas, and instantaneous temperature can reach more than 2500K, consequently, is heated seriously, and the heat dissipation condition is very poor again, so the piston during operation temperature is very high to the life's of piston problem has been reduced.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a piston and piston assembly, includes the piston body, the cavity has been seted up at the top of piston body, and the inner chamber sliding connection of cavity has the heating panel, the arc wall has been seted up to the bottom of heating panel, and the internal surface of cavity has seted up the louvre, the contained angle between louvre and the piston body cross section is the acute angle, and the louvre runs through the piston body, the equal fixedly connected with L type dog in left side and the right side at piston body top, and the top fixedly connected with connecting rod of heating panel, the top of connecting rod runs through the cavity and extends to the top of piston body, and the top fixedly connected.
Preferably, the outer surface of the piston body is provided with a first sealing groove, and the outer surface of the piston body and the upper and lower sides of the first sealing groove are both provided with a second sealing groove.
Preferably, the inner cavity of the first sealing groove is fixedly connected with a two-way sealing ring, and the inner cavity of the second sealing groove is fixedly connected with a one-way sealing ring.
Preferably, the bottom of the piston body is fixedly connected with a plurality of grooves.
Preferably, the piston body comprises a wear-resistant layer, and a corrosion-resistant layer is fixedly connected to the inner surface of the wear-resistant layer.
Preferably, the inner surface of the corrosion-resistant layer is fixedly connected with a pressure-resistant layer, the inner surface of the pressure-resistant layer is fixedly connected with a heat-resistant layer, and the inner surface of the heat-resistant layer is fixedly connected with a heat-conducting layer.
Advantageous effects
The utility model provides a piston and piston assembly. Compared with the prior art, the method has the following beneficial effects:
(1) the piston and the piston assembly are characterized in that a cavity is formed in the top of the piston body, a heat dissipation plate is connected to the inner cavity of the cavity in a sliding mode, an arc-shaped groove is formed in the bottom of the heat dissipation plate, heat dissipation holes are formed in the inner surface of the cavity, the included angle between each heat dissipation hole and the cross section of the piston body is an acute angle, each heat dissipation hole penetrates through the piston body, L-shaped stop blocks are fixedly connected to the left side and the right side of the top of the piston body, a connecting rod is fixedly connected to the top of the heat dissipation plate, the top end of the connecting rod penetrates through the cavity and extends to the upper portion of the piston body, a pneumatic cylinder is fixedly connected to the top end of the connecting rod, the heat dissipation plate is driven by the aid of the heat dissipation plate, the heat, and through being equipped with the arc wall, the heating panel can carry more outside air, carries outside cold air entering cavity and the louvre discharge of cavity of piston body through the heating panel and in the hot-air, has reached better radiating effect, has prolonged the life of piston body.
(2) This piston and piston assembly, first seal groove has been seted up through the surface at the piston body, the second seal groove has all been seted up to the surface of piston body and the upper and lower both sides that are located first seal groove, the inner chamber fixedly connected with two way seal circle of first seal groove, and the inner chamber fixedly connected with one way sealing washer of second seal groove, the bottom fixedly connected with recess of piston body, and the quantity of recess sets up to a plurality ofly, through being equipped with two way seal circle and one way sealing washer, better sealed effect has been reached, through be equipped with the recess in the bottom of piston body, the area of contact of increase piston body bottom, the pressure of extrudate to the piston body has been reduced, better result of use has been reached.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a front view of the piston body of the present invention;
fig. 3 is a bottom view of the piston body of the present invention;
fig. 4 is a top view of the piston body of the present invention.
In the figure: 1. a piston body; 2. a cavity; 3. a heat dissipation plate; 4. an arc-shaped slot; 5. heat dissipation holes; 6. an L-shaped stop block; 7. a connecting rod; 8. a pneumatic cylinder; 9. a first seal groove; 10. a second seal groove; 11. a bidirectional sealing ring; 12. a one-way sealing ring; 13. a groove; 14. a wear layer; 15. a corrosion-resistant layer; 16. a pressure-resistant layer; 17. a heat-resistant layer; 18. a thermally conductive layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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 fig. 1-4, the present invention provides a technical solution: a piston and a piston assembly comprise a piston body 1, wherein the piston body 1 comprises a wear-resistant layer 14, the inner surface of the wear-resistant layer 14 is fixedly connected with a corrosion-resistant layer 15, the inner surface of the corrosion-resistant layer 15 is fixedly connected with a pressure-resistant layer 16, the inner surface of the pressure-resistant layer 16 is fixedly connected with a heat-resistant layer 17, the inner surface of the heat-resistant layer 17 is fixedly connected with a heat-conducting layer 18, the top of the piston body 1 is provided with a cavity 2, an inner cavity of the cavity 2 is slidably connected with a heat-radiating plate 3, the bottom of the heat-radiating plate 3 is provided with an arc-shaped groove 4, the inner surface of the cavity 2 is provided with a heat-radiating hole 5, an included angle between the heat-radiating hole 5 and the cross section of the piston body 1 is an acute angle, the heat-radiating hole 5 penetrates through the, and the top end of the connecting rod 7 is fixedly connected with a pneumatic cylinder 8, the pneumatic cylinder 8 is connected with an air pump, through the heat dissipation plate 3, the arc-shaped groove 4, the heat dissipation hole 5, the L-shaped stop 6 and the cooperation of the connecting rod 7 and the pneumatic cylinder 8, the pneumatic cylinder 8 pushes and drives the heat dissipation plate 3 to move up and down, external air is brought into the cavity 2, then hot air in the piston body 1 is extruded, the hot air is discharged through the heat dissipation hole 5, and through the arrangement of the arc-shaped groove 4, the heat dissipation plate 3 can carry more external air, the cold air carrying the external air through the heat dissipation plate 3 enters the cavity 2 of the piston body 1 and the hot air in the cavity 2 is discharged through the heat dissipation hole 5, a better heat dissipation effect is achieved, the service life of the piston body 1 is prolonged, the outer surface of the piston body 1 is provided with a first sealing groove, the inner cavity fixedly connected with two-way seal circle 11 of first seal groove 9, and the inner cavity fixedly connected with one-way seal circle 12 of second seal groove 10, the bottom fixedly connected with recess 13 of piston body 1, and the quantity of recess 13 sets up to a plurality ofly, through being equipped with two-way seal circle 11 and one-way seal circle 12, better sealed effect has been reached, through being equipped with recess 13 in the bottom of piston body 1, the area of contact of increase piston body 1 bottom, the pressure of extrusion to piston body 1 has been reduced, better result of use has been reached.
During the use, open pneumatic cylinder 8, pneumatic cylinder 8 promotes connecting rod 7 and drives heating panel 3 and slide about cavity 2, heating panel 3 is blockked by L type dog 6 when being located the top, piston body 1 is driven by pneumatic cylinder 8 and is the upward movement this moment, heating panel 3 is located and is blockked by cavity 2 when the below on the same principle, piston body 1 is driven by pneumatic cylinder 8 and is the downward movement, heating panel 3 is located when the top moves down, bring the air of outside into cavity 2, then the hot-air in the extrusion piston body 1, pass through 5 dischargements of louvre with the hot-air, the radiating effect has been reached.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A piston and piston assembly, including piston body (1), characterized by: cavity (2) have been seted up at the top of piston body (1), and the inner chamber sliding connection of cavity (2) has heating panel (3), arc wall (4) have been seted up to the bottom of heating panel (3), and the internal surface of cavity (2) has seted up louvre (5), the contained angle between louvre (5) and piston body (1) cross section is the acute angle, and louvre (5) run through piston body (1), the equal fixedly connected with L type dog (6) in left side and the right side at piston body (1) top, and the top fixedly connected with connecting rod (7) of heating panel (3), the top of connecting rod (7) runs through cavity (2) and extends to the top of piston body (1), and the top fixedly connected with pneumatic cylinder (8) of connecting rod (7).
2. A piston and piston assembly as set forth in claim 1 wherein: first seal groove (9) have been seted up to the surface of piston body (1), second seal groove (10) have all been seted up to the surface of piston body (1) and the upper and lower both sides that are located first seal groove (9).
3. A piston and piston assembly as set forth in claim 2 wherein: the inner cavity of the first sealing groove (9) is fixedly connected with a two-way sealing ring (11), and the inner cavity of the second sealing groove (10) is fixedly connected with a one-way sealing ring (12).
4. A piston and piston assembly as set forth in claim 1 wherein: the bottom of the piston body (1) is fixedly connected with a plurality of grooves (13), and the number of the grooves (13) is set to be multiple.
5. A piston and piston assembly as set forth in claim 1 wherein: the piston body (1) comprises a wear-resistant layer (14), and a corrosion-resistant layer (15) is fixedly connected to the inner surface of the wear-resistant layer (14).
6. A piston and piston assembly as claimed in claim 5, wherein: the inner surface of the corrosion-resistant layer (15) is fixedly connected with a pressure-resistant layer (16), the inner surface of the pressure-resistant layer (16) is fixedly connected with a heat-resistant layer (17), and the inner surface of the heat-resistant layer (17) is fixedly connected with a heat-conducting layer (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922398216.9U CN211777738U (en) | 2019-12-27 | 2019-12-27 | Piston and piston assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922398216.9U CN211777738U (en) | 2019-12-27 | 2019-12-27 | Piston and piston assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211777738U true CN211777738U (en) | 2020-10-27 |
Family
ID=72980327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922398216.9U Expired - Fee Related CN211777738U (en) | 2019-12-27 | 2019-12-27 | Piston and piston assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211777738U (en) |
-
2019
- 2019-12-27 CN CN201922398216.9U patent/CN211777738U/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: 20201027 |