CN102817811A - Compressor piston - Google Patents
Compressor piston Download PDFInfo
- Publication number
- CN102817811A CN102817811A CN201210073001XA CN201210073001A CN102817811A CN 102817811 A CN102817811 A CN 102817811A CN 201210073001X A CN201210073001X A CN 201210073001XA CN 201210073001 A CN201210073001 A CN 201210073001A CN 102817811 A CN102817811 A CN 102817811A
- Authority
- CN
- China
- Prior art keywords
- piston
- mentioned
- compressor
- piston body
- cap
- 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
Images
Landscapes
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The present invention provides a compressor piston which can make the strength of the engagement of the piston be stable. The compressor piston is formed by the following members: a piston body and a piston cap. The piston body is formed by a connection part connected with a drive unit of the compressor and a joint part which is formed together with the connection part in a whole. The piston cap is bottomed cylindrical. One side of the piston body is provided with an opening used for connecting with the piston body. The abut wall for the connection part of the piston body is abutted with the end wall of the circumferential wall opening of the piston cap. Under the condition of the outer circumferential surface of the connection part facing the inner circumferential surface of the circumferential wall, the end wall is connected with the abut wall. A groove portion is disposed on one circumferential surface of the outer circumferential surface of the connection part and the inner circumferential surface of the circumferential wall.
Description
Technical field
The present invention relates to electron beam welding, particularly relate to the welding of piston for compressor.
Background technique
In the past, as the piston body of piston and the joint method of piston cap (piston cap), like the method for patent documentation 1 said employing electron beam welding.Utilize electron beam welding to be connected on the piston assembly body that constitutes by piston body part and piston cap part of circumferential whole this piston for compressor of zone welding.
Patent documentation 1: TOHKEMY 2001-153046 communique
But; The techniques make use electron beam welding fetched welding piston body and piston cap in the past; But; After utilizing destruction test to estimate the intensity of piston, the result has following problem: piston body is unstable with the intensity that piston cap engages the anastomosis part that engages, and the border of the anastomosis part that piston body engages with piston cap nearby produces and damages.
That is, when utilizing electron beam welding that piston body and piston cap are welded, produce remaining internal stress, therefore can not stably keep the intensity of anastomosis part in the outer circumference end of piston cap.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of stable piston for compressor of bond strength that can make piston.
In order to address the above problem, the piston for compressor of the described invention of technological scheme of the present invention is by forming like lower member: piston body, the linking department that it is connected by the drive portion that is used for compressor and form with the integrally formed connecting part of this linking department; The piston cap that bottom tube-like is arranged; It is provided with in a side and is used for the opening portion that engages with above-mentioned piston body; This piston for compressor connects at the end wall of the opening portion of the perisporium of the contacting wall of the connecting part of above-mentioned piston body and above-mentioned piston cap; And under the outer circumferential face of above-mentioned connecting part and the state that the inner peripheral surface of above-mentioned perisporium is faced mutually; Make between above-mentioned end wall and the above-mentioned contacting wall to engage, this piston for compressor is characterised in that, any side face in the inner peripheral surface of the outer circumferential face of above-mentioned connecting part and above-mentioned perisporium is provided with slot part.
On the basis of technological scheme 4 described inventions any described piston for compressor in technological scheme 1～3, it is characterized in that above-mentioned slot part is formed on above-mentioned contacting wall on the above-mentioned connecting part between the front end.
The present invention is provided with slot part through any side face in the inner peripheral surface of the outer circumferential face of connecting part and perisporium; Can between outer circumferential face and inner peripheral surface, the gap be set; Therefore the fused solution that fusing forms under the effect of electron beam welding flows in the gap; The remaining internal stress that when welding, produces is descended, so can improve the bond strength of piston body and piston cap.
Description of drawings
Fig. 1 is the whole sectional view of the summary of piston of the present invention.
Fig. 2 is the piston body of piston of the present invention and the decomposition general profile chart of piston cap.
Fig. 3 is the enlarged view at piston of the present invention joining portion.
Fig. 4 is the figure of relation of size and the intensity in the gap between expression piston body and the piston cap.
Fig. 5 is the joining portion enlarged view of the piston of expression variation.
Fig. 6 is the joining portion enlarged view of the piston of expression variation.
Embodiment
Below, utilize description of drawings mode of execution of the present invention.
Use the piston for compressor 1 of Fig. 1～Fig. 4 illustrative embodiment 1.
As shown in Figure 1, piston for compressor 1 is by forming like lower member: piston body 2, the linking department 5 that it is connected by the drive portion with compressor and form with these linking department 5 integrally formed connecting parts 4; The piston cap 3 that bottom tube-like is arranged, it engages with piston body 2 in a side, and this piston cap 3 is provided with opening portion 17.
At the contacting wall 10 of the connecting part 4 of piston body 2 and end wall 7 butts at opening portion 17 places of the perisporium 6 of this piston cap 3, and under the outer circumferential face 13 of connecting part 4 and the state that the inner peripheral surface 8 of perisporium 6 is faced mutually, make between end wall 7 and the contacting wall 10 to engage.
And, be provided with slot part 11 on any side face in the inner peripheral surface 8 of outer circumferential face of connecting part 4 13 and perisporium 6.
As shown in Figure 1; Piston for compressor 1 is by piston body 2 and have the piston cap 3 of bottom tube-like to form; Above-mentioned piston body 2 at one end side has the linking department 5 that the cross section is the L font, distolaterally has a connecting part 4 at another, and above-mentioned piston cap 3 utilizes welding and engages with the connecting part 4 of piston body 2.
Piston body 2 is by forming like lower member: the linking department 5 of L font roughly, and it is connected a distolateral and not shown compressor of piston body 2; Connecting part 4, its make another of piston body 2 distolateral utilize electron beam welding and with after the piston cap 3 stated be bonded into one.At a distolateral linking department 5 that is provided with of this piston body 2, as depicted in figs. 1 and 2 in this linking department 5, being formed with is used for the binding recess 5a that is connected with compressor.In this binding recess 5a, dispose not shown piston watt (piston shoe) sliding freely, the driving force of compressor watt is delivered to piston via piston.
In another distolateral connecting part 4 that is provided with of piston body 2, this connecting part 4 utilize electron beam welding with after the piston cap 3 stated engage.As shown in Figure 3, be provided with front end 9 in the end of piston body 2.On the outer circumferential face 13 of front end 9, be provided with: lip part 14, its have supply piston cap 3 to be inserted in and with the contacting wall 10 of the front end butt of piston cap 3; Stepped part 12, itself and lip part 14 are provided with continuously.In addition, be provided with slot part 11 between the inboard and stepped part 12 with spreading all over whole circumference, between the inner peripheral surface 8 of slot part 11 and the piston cap 3 that is inserted in, be formed with gap S at the axial direction of outer circumferential face 13.
Be provided with the conical surface 15 that inner circle wall forms cone shape inclined-plane in the inboard of front end 9.
The piston cap 3 that is embedded in the outer circumferential face 13 of front end 9 of piston body 2 has formed bottom tube-like, is made up of perisporium 6 and diapire 16.Be provided with the end wall 7 with contacting wall 10 butts of piston body 2 at the front end of perisporium 6.
Next, the welding method of piston body 2 and piston cap 3 is described.
The end wall 7 of the front end of perisporium 6 is disposed with the mode with contacting wall 10 butts of piston body 2, utilize electron beam welding that piston body 2 is engaged with piston cap 3.When carrying out this welding, the part fusing of the lip part 14 of piston body 2 and the end wall 7 of piston cap 3, the fused solution that fusing forms flow in the slot part 11 on the outer circumferential face 13 that is formed on piston body 2, reduces the remaining internal stress that when welding, produces.
Fig. 4 is an experimental result of utilizing destruction test to obtain; The intensity of the size of expression gap S and the piston for compressor 1 that utilizes electron beam welding to engage to form, this gap S be formed on piston cap 3 end wall 7 inner peripheral surface 8 and be formed between the slot part 11 on the outer circumferential face 13 of piston body 2.
As shown in Figure 4, following tendency is arranged: the inner peripheral surface 8 of the end wall 7 of piston cap 3 and to be formed on the size of the gap S between the slot part 11 on the outer circumferential face 13 of piston body 2 big more, the intensity that engages the piston for compressor 1 that forms is high more.
In the present embodiment; The inboard part of axial direction of leaning on through at the outer circumferential face 13 of the connecting part 4 of piston body 2 is provided with slot part 11; Therefore can between outer circumferential face 13 and inner peripheral surface 8, gap S be set, utilize electron beam welding to make the part fusing of end wall 7 of lip part 14 and the piston cap 3 of piston body 2, the fused solution that fusing forms flows in the slot part 11; Reduce the remaining internal stress of generation when welding, therefore can improve the bond strength of piston body 2 and piston cap 3.
In addition, as shown in Figure 5, as the variation of connecting part 4; Slot part 11 is established to the front end of front end 20; Inner peripheral surface 8 through with piston cap 3 is enclosed within stepped part 12, can between the inner peripheral surface 8 of the front end 9 of piston body 2 and piston cap 3, guarantee bigger gap S, carries out the higher welding of intensity.
In addition, as shown in Figure 6, as the variation of connecting part 4, stepped part 12 ground are not set on the outer circumferential face 13 of the front end 30 of piston body 2 form slot part 11.Form slot part 11 through stepped part 12 ground are not set, can between the inner peripheral surface 8 of the outer circumferential face 13 of piston body 2 and piston cap 3, guarantee bigger gap S, carry out the higher welding of intensity.
In addition; In the present embodiment; Slot part is located on the outer circumferential face of piston body, but so long as the structure of gap S can be set between the outer circumferential face of the inner peripheral surface of piston cap and piston body get final product, can on any side face in the outer circumferential face of the inner peripheral surface of piston cap and piston body, slot part be set.
In addition, the degree of depth of slot part can be according to the shape of the used material of piston, piston and suitably change.
Utilizability on the industry
The present invention can be utilized in the electron beam welding.
Description of reference numerals
1, piston for compressor; 2, piston body; 3, piston cap; 4, connecting part; 5, linking department; 6, perisporium; 7, end wall; 8, inner peripheral surface; 10, contacting wall; 13, outer circumferential face; 17, opening portion.
Claims (4)
1. a piston for compressor (1), it is by forming like lower member:
Piston body (2), the linking department (5) that it is connected by the drive portion that is used for compressor and form with the integrally formed connecting part (4) of this linking department (5);
The piston cap (3) that bottom tube-like is arranged, it is provided with in a side and is used for the opening portion (17) that engages with above-mentioned piston body (2),
At the contacting wall (10) of the connecting part (4) of above-mentioned piston body (2) and end wall (7) butt of the opening portion (17) of the perisporium (6) of above-mentioned piston cap (3); And under the outer circumferential face (13) of above-mentioned connecting part (4) and the state that the inner peripheral surface (8) of above-mentioned perisporium (6) is faced mutually; Make between above-mentioned end wall (7) and the above-mentioned contacting wall (10) and engage
This piston for compressor (1) any side face in the inner peripheral surface (8) of the outer circumferential face (13) of above-mentioned connecting part (4) and above-mentioned perisporium (6) is provided with slot part (11).
2. piston for compressor according to claim 1 (1) is characterized in that,
Above-mentioned slot part (11) is arranged on than outer circumferential face (13) above-mentioned connecting part (4) and that inner peripheral surfaces above-mentioned piston cap (3) (8) are faced mutually and leans on the inboard position of axial direction.
3. piston for compressor according to claim 1 (1) is characterized in that,
Above-mentioned slot part (11) is to form through outer circumferential face (13) undergauge that the opening portion (17) that makes the above-mentioned piston cap of confession (3) is inserted in.
4. according to any described piston for compressor (1) in the claim 1～3, it is characterized in that,
The above-mentioned contacting wall (10) that above-mentioned slot part (11) is formed on the above-mentioned connecting part (4) arrives between the front end (9).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-129115 | 2011-06-09 | ||
| JP2011129115A JP5696594B2 (en) | 2011-06-09 | 2011-06-09 | Piston for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817811A true CN102817811A (en) | 2012-12-12 |
Family
ID=47302168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210073001XA Pending CN102817811A (en) | 2011-06-09 | 2012-03-19 | Compressor piston |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5696594B2 (en) |
| CN (1) | CN102817811A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19754440A1 (en) * | 1996-12-09 | 1998-06-10 | Toyoda Automatic Loom Works | Reciprocating piston compressor |
| JPH10159725A (en) * | 1996-12-02 | 1998-06-16 | Sanden Corp | Swash plate type compressor |
| EP0952339A2 (en) * | 1998-04-15 | 1999-10-27 | Sanden Corporation | Piston for a swash plate compressor |
| CN1245264A (en) * | 1998-05-20 | 2000-02-23 | 株式会社丰田自动织机制作所 | Piston and manufacturing method thereof |
| US20010015013A1 (en) * | 2000-02-18 | 2001-08-23 | Takayuki Kato | Method of producing swash plate type compressor piston |
| US6321635B1 (en) * | 1998-09-22 | 2001-11-27 | Sanden Corporation | Swash plate type compressor in which lubricating oil is effectively supplied to a shoe mechanism interposed between a piston and a swash plate |
| JP2002059318A (en) * | 2000-08-16 | 2002-02-26 | Toyota Industries Corp | Compressor piston manufacturing method |
| CN1726344A (en) * | 2002-12-13 | 2006-01-25 | 卢克汽车-液压系统两合公司 | Axial piston machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5147245B2 (en) * | 2007-01-18 | 2013-02-20 | カルソニックカンセイ株式会社 | Piston for compressor and manufacturing method of piston for compressor |
-
2011
- 2011-06-09 JP JP2011129115A patent/JP5696594B2/en not_active Expired - Fee Related
-
2012
- 2012-03-19 CN CN201210073001XA patent/CN102817811A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159725A (en) * | 1996-12-02 | 1998-06-16 | Sanden Corp | Swash plate type compressor |
| DE19754440A1 (en) * | 1996-12-09 | 1998-06-10 | Toyoda Automatic Loom Works | Reciprocating piston compressor |
| EP0952339A2 (en) * | 1998-04-15 | 1999-10-27 | Sanden Corporation | Piston for a swash plate compressor |
| CN1245264A (en) * | 1998-05-20 | 2000-02-23 | 株式会社丰田自动织机制作所 | Piston and manufacturing method thereof |
| US6321635B1 (en) * | 1998-09-22 | 2001-11-27 | Sanden Corporation | Swash plate type compressor in which lubricating oil is effectively supplied to a shoe mechanism interposed between a piston and a swash plate |
| US20010015013A1 (en) * | 2000-02-18 | 2001-08-23 | Takayuki Kato | Method of producing swash plate type compressor piston |
| JP2002059318A (en) * | 2000-08-16 | 2002-02-26 | Toyota Industries Corp | Compressor piston manufacturing method |
| CN1726344A (en) * | 2002-12-13 | 2006-01-25 | 卢克汽车-液压系统两合公司 | Axial piston machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012255387A (en) | 2012-12-27 |
| JP5696594B2 (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104540628B (en) | Welding auxiliary assembling parts and the method with the part connecting element | |
| JP5429671B2 (en) | Methods for generating friction welded joints and joint design by friction welding | |
| US9804134B2 (en) | Connector unit and connecting system for connecting capillaries, in particular for high-performance liquid chromatography | |
| ES2570399T3 (en) | Procedure and useful for the production of a fixation joint in drag-joined components | |
| US20060231531A1 (en) | Weld prep joint for electron beam or laser welding | |
| CA2884230A1 (en) | Rotating tool for friction stir welding and friction stir welding method using same | |
| CN106573332B (en) | Metal bonded body and method for producing metal bonded body | |
| JP2006061983A (en) | Method for friction-stir-welding hollow workpieces | |
| MX2019007130A (en) | Joining a connecting element to a stranded conductor. | |
| JP2017508102A (en) | In particular, a unit for a fuel pumping system and its manufacturing method | |
| JP2015108613A (en) | Combustion pressure sensor, combustion pressure sensor used also as glow plug, manufacturing method of combustion pressure sensor and manufacturing method of combustion pressure sensor used also as glow plug | |
| CN110480133A (en) | A kind of submerged-arc welding single face welding and double face shaping technique | |
| CN102817811A (en) | Compressor piston | |
| CN105073329B (en) | Conjugant | |
| CN102873461B (en) | Different materials macro-axis screws the method for welding | |
| CN104329186A (en) | Assembling method for secondary combustion chamber of solid stamping engine | |
| US8425706B2 (en) | Joint design for welding plastic assemblies | |
| RU2019129292A (en) | METHOD OF CONNECTED BODY MANUFACTURING AND CONNECTED BODY | |
| CN105793581A (en) | Method for manufacturing component connection system and component connection system manufactured according to said method | |
| JP2018167276A5 (en) | ||
| CN103876661B (en) | A kind of Combined cooking utensil hand grip | |
| WO2012073480A1 (en) | Compressor casing | |
| JP2017194088A (en) | Pressure resistant apparatus and fluid pressure cylinder | |
| WO2009044775A1 (en) | Method of joining metal tubes, joint structure, flanged tube, and method of forming the flanged tube | |
| CN204784165U (en) | Flat housing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |