CN108458108A - A kind of Stirling-electric hybrid piston coupling structure - Google Patents
A kind of Stirling-electric hybrid piston coupling structure Download PDFInfo
- Publication number
- CN108458108A CN108458108A CN201711045552.4A CN201711045552A CN108458108A CN 108458108 A CN108458108 A CN 108458108A CN 201711045552 A CN201711045552 A CN 201711045552A CN 108458108 A CN108458108 A CN 108458108A
- Authority
- CN
- China
- Prior art keywords
- barrel
- type casing
- piston
- interconnecting piece
- stirling
- 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.)
- Pending
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 20
- 238000010168 coupling process Methods 0.000 title claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 20
- 206010058109 Hangnail Diseases 0.000 claims abstract description 11
- 239000003292 glue Substances 0.000 claims abstract description 7
- 230000005855 radiation Effects 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000004700 fetal blood Anatomy 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/10—Connection to driving members
- F16J1/12—Connection to driving members with piston-rods, e.g. rigid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/01—Pistons; Trunk pistons; Plungers characterised by the use of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2270/00—Constructional features
- F02G2270/40—Piston assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2270/00—Constructional features
- F02G2270/45—Piston rods
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of Stirling-electric hybrid piston coupling structure, including piston and piston rod, piston includes barrel-type casing, and the internal perisporium of one end closing of barrel-type casing, another end opening of barrel-type casing, the barrel-type casing of opening is provided with multi-turn hangnail protrusion.Piston rod includes the bar portion being wholely set and interconnecting piece, interconnecting piece is provided with the cavity being connected with barrel-type casing, the periphery wall of interconnecting piece and the internal perisporium interference fit of barrel-type casing connect, and the periphery wall of interconnecting piece is provided with multi-turn annular groove, and hangnail protrusion is located in annular groove.The interconnecting piece of the barrel-type casing of piston and piston rod is interference fitted using thermal expansion and contraction principle and is connected by the present invention, while can be coated with glue in junction；Dual-seal is realized using extruding metal and glue bonding.Connection structure is relatively reliable, and ensures the sealing effect of junction, reduces the leakage loss of sky intracavity gas.
Description
Technical field
The present invention relates to a kind of piston coupling structures, more particularly, to a kind of piston coupling structure for Stirling-electric hybrid.
Background technology
Usually said piston coupling structure includes the piston and piston rod to link together.This connection structure is extensive
Applied to each machinery industry, piston coupling structure is generally divided into monoblock type and assembled, more common with assembled, assembled
Including being threadedly coupled, semi-ring connection, taper pin connects and the types such as bonding.
The piston coupling structure in the existing Stirling-electric hybrid in China is mainly threadedly coupled and is bonded at present.Although screw thread connects
Good reliability is connect, intensity is high, big but there are difficulty of processing, and the part centering effect being connected with each other is poor, and be connected to each other place
Sealing effect is bad, and gas is led to problems such as to leak, and the cost of this structure is very high, is not suitable with mass production demand.
Although bonding operation is simple, the limited strength of glue especially is easy to take off and split, causes the work when by impact
Fill in the seal failure at link position.
Each part in piston coupling structure is often made from a variety of materials, the method for welding apply here by
To limitation.
Invention content
The present invention is directed to overcome above-mentioned the deficiencies in the prior art, it is proposed that a kind of Stirling-electric hybrid piston connection knot
Structure, the connection structure is solid and reliable, junction good seal performance.
The technical solution adopted by the present invention to solve the technical problems is：A kind of Stirling-electric hybrid piston coupling structure, including：
Piston and piston rod, the piston include barrel-type casing, one end closing of the barrel-type casing, the other end of the barrel-type casing
The internal perisporium of opening, the barrel-type casing of the opening is provided with multi-turn hangnail protrusion；
The piston rod includes the bar portion being wholely set and interconnecting piece, and the interconnecting piece is provided with and the barrel-type casing phase
The cavity of connection, the periphery wall of the interconnecting piece and the internal perisporium interference fit of the barrel-type casing connect, the interconnecting piece
Periphery wall is provided with multi-turn annular groove, and the hangnail protrusion is located in the annular groove.
Further, the junction of the barrel-type casing and the interconnecting piece is coated with glue.
Further, multiple tracks thermal radiation resistant barrier is provided in the barrel-type casing.
Further, the barrel-type casing is stainless steel part, and the piston rod is Al-alloy parts.
Further, the barrel-type casing and the piston rod are stamping parts.
Further, the bar portion of the piston rod is hollow structure.
Using above-mentioned technical proposal, the beneficial effects of the invention are as follows：
The periphery wall of piston rod interconnecting piece and the internal perisporium of barrel-type casing realize that interference is matched using thermal expansion and contraction principle assembly
It closes and connects, in the multi-turn annular groove of the lucky periphery wall for being placed in interconnecting piece of multi-turn hangnail protrusion of barrel-type casing internal perisporium.Ensure to connect
The fastness connect, while circular metal sealing realizes required sealing effect.The junction of barrel-type casing and interconnecting piece is same
When with the use of being coated with glue.Further improve the reliability of piston coupling structure.Reduce the leakage of sky intracavity gas
Loss, it is ensured that the pressure in cavity.And this connection structure whole installation process has ensured that piston rod is connected with barrel-type casing
Concentricity, improve centering effect, positioning is more accurate.
Piston rod and barrel-type casing can be processed simple and at low cost by punch process straight forming.To prevent heat
It is lost with the form of heat radiation by directly transmitting, will multiple tracks thermal radiation resistant barrier be set in barrel-type casing, reduces thermal loss.
Description of the drawings
Fig. 1 is the structural schematic diagram of Stirling-electric hybrid piston coupling structure of the present invention；
Fig. 2 is the sectional view at A-A in Fig. 1；
Fig. 3 is the close-up schematic view of junction in Fig. 2；
Fig. 4 is the enlarged diagram of hangnail protrusion in Fig. 3；
Fig. 5 is the enlarged diagram of annular groove in Fig. 3；
In figure：1- pistons, 11- barrel-type casings, 111- hangnail protrusions, 112- thermal radiation resistant barriers, 2- piston rods, 21- bars
Portion, 22- interconnecting pieces, 221- cavitys, 222- annular grooves.
Specific implementation mode
In conjunction with attached drawing, the present invention is described in further detail.
As shown in Figure 1 to Figure 3, Stirling-electric hybrid piston coupling structure mainly has piston 1 and piston rod 2 to be formed by connecting, living
Plug 1 includes barrel-type casing 11, and one end of barrel-type casing 11 is closed, another end opening of barrel-type casing 11, the tubular of the opening
The internal perisporium of shell 11 is provided with multi-turn hangnail protrusion 111.
Piston rod 2 is mainly made of the bar portion 21 and interconnecting piece 22 being wholely set.The bar portion 21 of piston rod 2 is hollow knot
Structure.The interconnecting piece 22 of piston rod 2 is adapted for the barrel-type casing 11 of tubular construction and piston 1.Interconnecting piece 22 be internally provided with
The cavity 221 that barrel-type casing 11 is connected accommodates the gas of certain volume in cavity 221.It is straight to prevent heat from passing through simultaneously
Setting multiple tracks thermal radiation resistant barrier 112 in barrel-type casing 11 is reduced thermal loss by the form loss for connecing transmission and heat radiation.
Piston rod 2 by light weight, have good ductility and the high aluminum alloy materials of intensity are made；Barrel-type casing 11 is by high intensity and height
The stainless steel material of extension is made.Both materials are all easy to the processing of parts, therefore barrel-type casing 11 and piston rod 2
To pass through punch process straight forming.
The interconnecting piece 22 of piston rod 2 is assembled with barrel-type casing 11 using metal heat-expansion shrinkage principle, forms piston
Connection structure.Piston rod made of aluminum alloy materials 2 is subjected to Cord blood (temperature is less than room temperature) first, is at contraction
Barrel-type casing made of stainless steel material 11 is carried out high-temperature baking, is at swelling state by state.Then in the cold and hot temperature difference
In the presence of in the state of, the interconnecting piece 22 of piston rod 2 end sections compatible with 11 opening of barrel-type casing are inserted into cylinder outer race
In body 11, and glue is coated in 2 interconnecting piece 22 of piston rod and the junction of barrel-type casing 11.Wait for piston rod 2 and barrel-type casing 11
After when recovery normal condition, the internal perisporium of barrel-type casing 11 is connected with the periphery wall interference fit of interconnecting piece 22, at this point, such as Fig. 4
Shown in Fig. 5, the hangnail protrusion 111 of 11 internal perisporium of barrel-type casing has been placed in the annular groove 222 of 22 periphery wall of interconnecting piece.Finally
Vertical place waits for glue curing.Piston 1 is fixedly connected with piston rod 2, forms Stirling-electric hybrid piston coupling structure.
There are the pressures of alternation with 1 extraneous gas of piston (cylinder interior gas) for 1 internal gas of piston (referring to gas in cavity 221)
Force difference, so very strict to piston 1 and the sealing requirements of the link position of piston rod 2.The connection structure is squeezed using metal
Pressure and glue bonding realize dual-seal, it is ensured that the sealing effect of piston 1 and 2 junction of piston rod reduces in cavity 221
The leakage of gas is lost, and ensures that pressure is invariable in cavity 221 under the operating mode of external pressure continued jitters.
Claims (6)
1. a kind of Stirling-electric hybrid piston coupling structure, including：Piston and piston rod, which is characterized in that
The piston includes barrel-type casing, one end closing of the barrel-type casing, and another end opening of the barrel-type casing is described
The internal perisporium of the barrel-type casing of opening is provided with multi-turn hangnail protrusion；
The piston rod includes the bar portion being wholely set and interconnecting piece, and the interconnecting piece is provided with to be connected with the barrel-type casing
Cavity, the internal perisporium interference fit of the periphery wall of the interconnecting piece and the barrel-type casing connects, the periphery of the interconnecting piece
Wall is provided with multi-turn annular groove, and the hangnail protrusion is located in the annular groove.
2. Stirling-electric hybrid piston coupling structure as described in claim 1, which is characterized in that the barrel-type casing and the connection
The junction in portion is coated with glue.
3. Stirling-electric hybrid piston coupling structure as described in claim 1, which is characterized in that be provided in the barrel-type casing more
Road thermal radiation resistant barrier.
4. Stirling-electric hybrid piston coupling structure as described in claim 1, which is characterized in that the barrel-type casing is stainless steel
Part, the piston rod are Al-alloy parts.
5. Stirling-electric hybrid piston coupling structure as claimed in claim 4, which is characterized in that the barrel-type casing and the piston
Bar is stamping parts.
6. Stirling-electric hybrid piston coupling structure as described in claim 1, which is characterized in that the bar portion of the piston rod is hollow
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045552.4A CN108458108A (en) | 2017-10-31 | 2017-10-31 | A kind of Stirling-electric hybrid piston coupling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045552.4A CN108458108A (en) | 2017-10-31 | 2017-10-31 | A kind of Stirling-electric hybrid piston coupling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108458108A true CN108458108A (en) | 2018-08-28 |
Family
ID=63221226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711045552.4A Pending CN108458108A (en) | 2017-10-31 | 2017-10-31 | A kind of Stirling-electric hybrid piston coupling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108458108A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005066483A1 (en) * | 2004-01-08 | 2005-07-21 | Microgen Energy Limited | A displacer piston |
| JP2005264854A (en) * | 2004-03-19 | 2005-09-29 | Sharp Corp | Stirling engine and its manufacturing method |
| CN1965200A (en) * | 2004-06-03 | 2007-05-16 | 夏普株式会社 | Stirling engine |
| CN104033270A (en) * | 2014-05-08 | 2014-09-10 | 宁波华斯特林电机制造有限公司 | Thermal insulation pneumatic piston of Stirling motor |
| CN106640407A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Free piston Stirling engine heat head based on isotope heat source |
| CN207393935U (en) * | 2017-10-31 | 2018-05-22 | 山东中科万隆电声科技有限公司 | A kind of Stirling-electric hybrid piston coupling structure |
-
2017
- 2017-10-31 CN CN201711045552.4A patent/CN108458108A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005066483A1 (en) * | 2004-01-08 | 2005-07-21 | Microgen Energy Limited | A displacer piston |
| JP2005264854A (en) * | 2004-03-19 | 2005-09-29 | Sharp Corp | Stirling engine and its manufacturing method |
| CN1965200A (en) * | 2004-06-03 | 2007-05-16 | 夏普株式会社 | Stirling engine |
| CN104033270A (en) * | 2014-05-08 | 2014-09-10 | 宁波华斯特林电机制造有限公司 | Thermal insulation pneumatic piston of Stirling motor |
| CN106640407A (en) * | 2015-10-30 | 2017-05-10 | 北京精密机电控制设备研究所 | Free piston Stirling engine heat head based on isotope heat source |
| CN207393935U (en) * | 2017-10-31 | 2018-05-22 | 山东中科万隆电声科技有限公司 | A kind of Stirling-electric hybrid piston coupling structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181129 Address after: 261061 Yinfeng Road, Xincheng Street, Weifang High-tech Zone, Shandong Province Applicant after: Shandong Zhongke Bandung electroacoustic technology Co. Ltd. Applicant after: Weifang Wanlong Electric Limited by Share Ltd. Address before: 261061 Yinfeng Road, Xincheng Street, Weifang High-tech Zone, Shandong Province Applicant before: Shandong Zhongke Bandung electroacoustic technology Co. Ltd. |
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| TA01 | Transfer of patent application right |