CN101205921A - Crank axle of enclosed type compressor and manufacturing method thereof - Google Patents
Crank axle of enclosed type compressor and manufacturing method thereof Download PDFInfo
- Publication number
- CN101205921A CN101205921A CNA2006101303238A CN200610130323A CN101205921A CN 101205921 A CN101205921 A CN 101205921A CN A2006101303238 A CNA2006101303238 A CN A2006101303238A CN 200610130323 A CN200610130323 A CN 200610130323A CN 101205921 A CN101205921 A CN 101205921A
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- mentioned
- axial region
- pump port
- crankshaft
- port assembly
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/42—Pumps with cylinders or pistons
Abstract
The invention provides a crank shaft of a hermetic compressor and manufacturing method thereof. The crank shaft of the hermetic compressor includes the following parts: a shaft part which is shaped through a manufacturing pipeline and provided with an engine oil channel perforating the inside; a pin part which is arranged on the upper end part of the shaft part for conveying power, and is composed of a pin body which is inserted into the shaft part for fixing and an eccentric pin which is integrally shaped on the pin body for conveying power, an engine oil channel is formed through the pin body and the eccentric pin. The manufacturing method of the crank shaft of the hermetic compressor includes the following steps: a step that the shaft part is processed, so that the outside diameter of cylinder shaped pipeline has a fixed value at each part, the pin part and a mounting part of a pump-out slot are provided; a step that the shaft part is combined with the pin part and the pump-out slot; and a step that the appearances of the shaft part, the pin part and the mounting part of the pump-out slot are grinded and processed. The invention can be processed more easily.
Description
Technical field
The present invention relates to a kind of crankshaft and manufacture method thereof of hermetic compressor.
Background technique
As shown in Figure 1, in scroll compressor, shell 1 constitutes the outward appearance of product, the inside of above-mentioned shell 1 will form the space of sealing, above-mentioned shell 1 is made of upper cap 1a, gabarit unit 1b and lower cover 1c, and the discharge tube 3 that connects above-mentioned shell 1 and be used for sucking from the outside suction pipe 2 of working liquid body and be used to discharge the working liquid body of compression is installed, on the lower cover 1c of above-mentioned shell 1, is formed with the machine oil memory section 1d that is used to store machine oil.
In the inside of above-mentioned shell 1 motor section 4 is installed, above-mentioned motor section 4 is by constituting with the bottom: the stator 4a that is fixedly set in the inside of above-mentioned shell 1; In the inside of said stator 4a is the rotor 4b of turning effort power with power conversions.The rotating center that connects above-mentioned rotor 4b is pressed into and is provided with crankshaft 5, and above-mentioned crankshaft 5 sends the turning effort power of above-mentioned rotor 4b to compression structure part 6.Be provided with the following machine oil pump port 5a that will illustrate in the lower end of above-mentioned crankshaft 5, the inside of above-mentioned crankshaft 5 is formed with engine oil supplying hole 5b, thereby can upwards suck the machine oil among the said engine oil memory section 1d, and sends generating heat department and friction part to.
Above-mentioned compression structure part 6 is by fixedly spool 7, spinning reel 8 and O type packing ring 9 constitute.That is, fixedly spool 7 has the fixedly spool teeth 7a of involute (involute) shape, and is formed with exhaust port 7b at central part, and above-mentioned exhaust port 7b is used to discharge the working liquid body of compression.Be provided with spinning reel teeth 8a in spinning reel 8, above-mentioned spinning reel teeth 8a is corresponding with said fixing spool teeth 7a, has identical involute shape.Above-mentioned O type packing ring 9 is installed on the position between upper frame 12 and the spinning reel 8, and it is used for rotatablely moving of crankshaft 5 is converted to the turn campaign.
Upside at said fixing spool 7 is equipped with high low pressure separating plate 10, and above-mentioned high low pressure separating plate 10 is used for the inner space of above-mentioned shell 1 is divided into high-voltage section (S1) and low voltage section (S2).Upside at above-mentioned exhaust port 7b is equipped with reverse stop valve assembly 11, above-mentioned reverse stop valve assembly 11 be used to prevent high-voltage section (S1) compression working liquid body generation adverse current and flow into the inside of compression volume (P).
In addition, the above-mentioned crankshaft 5 general raw material (starting material) of operations making shown in Fig. 2 (a) such as casting, sintering that pass through after forming the raw material of cylindrical shapes by operations such as casting, sintering, are processed operation again.At first, by cutting operation processing outward appearance, and formation outward appearance substantially.Cutting operation refers to, and cuts the operation of more relatively raw-material outside on lathe.Behind cutting operation, form said engine oil stream 5b by drill bit (drill), and, be formed on the machine oil stream 5b that the outside of crankshaft 5 forms simultaneously.
After above-mentioned cutting, the surface is heat-treated; After surface heat is handled, will carry out grinding (grinding) operation.The grinding operation refers to, and uses whetstone abrasive tools such as (whetstone) to carry out accurate surface Machining.In Fig. 2 (b), with the face that the picture oblique line represents to carry out above-mentioned grinding operation, the part of carrying out above-mentioned grinding operation is the part that is supported in above-mentioned upper frame 12 and wearing and tearing, is pressed into the part that is arranged at above-mentioned rotor 4b, the part that is supported in above-mentioned lower frame 13 and wearing and tearing etc.
But there are the following problems for the crankshaft of above-mentioned existing hermetic compressor:
At first, in the prior art,, need cut the process of raw-material outward appearance in order to form above-mentioned crankshaft 5.When carrying out cutting operation, need cut away a lot of parts of raw material outward appearance, and make the shape of crankshaft 5.Therefore, need to consume more relatively time and operation.Particularly, in the part of needs processing, have, thereby will cause machining operation difficulty more from the part of the rotating center off-centre of crankshaft 5.
And,, and need to use drill bit for the inner perforated at the crankshaft 5 that forms outward appearance by operations such as casting or sintering forms machine oil stream 5b and a plurality of hole.Particularly, in order to form machine oil stream 5b, needs are used relatively long drill bit.Therefore, in the process of using, drill bit will occur and become problem such as curved, and elongated problem of activity duration.
Summary of the invention
Technical problem underlying to be solved by this invention is, overcomes the defective that existing technology exists, and a kind of crankshaft and manufacture method thereof of hermetic compressor are provided, so that its processing is more prone to.
The crankshaft of hermetic compressor of the present invention is:
A kind of crankshaft of hermetic compressor is characterized in that, it includes following several sections: axial region, and it forms by process pipeline, and connects its inside and be formed with the machine oil stream; Pin portion, it is installed on the upper end portion of above-mentioned axial region, and being used to transmit power, it is made of the cam pin that is inserted in the pin body that above-mentioned axial region fixes and be integrally formed at above-mentioned pin body and transmit power, and connects above-mentioned pin body and cam pin is formed with the machine oil stream.
The crankshaft of aforesaid hermetic compressor wherein is inserted with the pump port assembly department in the underpart of above-mentioned axial region and fixes, and installation is used for supplying with to the machine oil stream of above-mentioned axial region the pump port of machine oil by above-mentioned pump port assembly department.
The crankshaft of aforesaid hermetic compressor, wherein pin portion and above-mentioned pump port assembly department are fixed on the above-mentioned axial region by the some methods in the method for using fitting recess and assembling projection or being pressed into or welding.
The manufacture method of the crankshaft of hermetic compressor of the present invention is:
A kind of manufacture method of crankshaft of hermetic compressor is characterized in that, it includes following several steps: axial region is processed, made the external diameter of the pipeline of drum have set value at each several part, and put forward the step of supply and marketing department and pump port assembly department; On above-mentioned axial region in conjunction with the step of above-mentioned pin portion and pump port assembly department; Outward appearance to above-mentioned axial region, pin portion and pump port assembly department is carried out grinding and processing steps.
The manufacture method of the crankshaft of aforesaid hermetic compressor, its middle shaft part is by forging or the swaged forging processing and fabricating, and above-mentioned pin portion and pump port assembly department pass through casting or sintering circuit manufacturing, and process its outside and make.
The manufacture method of the crankshaft of aforesaid hermetic compressor, wherein pin portion and pump port assembly department by form fitting recess and assembling projection carry out in conjunction with or be pressed in conjunction with or the method for solder bond in some methods be combined on the above-mentioned axial region.
The as above crankshaft and the manufacture method thereof of the hermetic compressor among the present invention of structure, what can be more prone to makes crankshaft and manufacturing procedure thereof, and can be rapid, cheap produce crankshaft.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the longitudinal section of general scroll compressor;
Fig. 2 is the process schematic representation of the manufacture method of existing crankshaft;
Fig. 3 is the longitudinal section of structure of the crankshaft preferred embodiment of hermetic compressor of the present invention;
Fig. 4 is the plan view of the structure of the crankshaft in the embodiment of the invention;
Fig. 5 is the schematic diagram of fabrication technology of the preferred embodiment of crankshaft manufacture method of the present invention.
The number in the figure explanation:
30: axial region 32: the machine oil stream
33: machine oil through hole 35: the assembling projection
40: pin portion 41: the pin body
43: cam pin 45: the machine oil stream
47: fitting recess 50: the pump port assembly department
51: body 53 is installed: through hole
Embodiment
Shown in Fig. 3,4, crankshaft of the present invention is made of axial region 30, pin portion 40 and pump port assembly department 50 substantially.Certainly, directly be provided with under the situation of pump port on above-mentioned axial region 30, above-mentioned pump port assembly department 50 will no longer be essential structure.
Above-mentioned axial region 30 roughly constitutes drum, and, have set diameter respectively according to the position.Above-mentioned axial region 30 forms by process pipeline, and the inside of above-mentioned axial region 30 is formed with machine oil stream 32, and said engine oil stream 32 will become the passage that machine oil sucks to top from the bottom of crankshaft.In addition, connect above-mentioned axial region 30 and be formed with a plurality of machine oil through holes 33, said engine oil through hole 33 will make the part in the machine oil of said engine oil stream 32 guiding flow out to the outside of axial region 30.Machine oil by said engine oil through hole 33 flows out to the outside of axial region 30 will send friction part and generating heat department to.
Also be provided with assembling projection 35 in the above-mentioned axial region 30, the effect of above-mentioned assembling projection 35 is, with pin portion 40 and 50 firm being fixed on the above-mentioned axial region 30 of pump port assembly department.But when if above-mentioned pin portion 40 and pump port assembly department 50 are fixed in above-mentioned axial region 30 by other method, above-mentioned assembling projection 35 will no longer be essential structure.In illustrated embodiment, only illustrate an assembling projection 35, but be not to be defined in this structure, can be provided with a plurality of assembling projectioies 35 according to design condition.
Above-mentioned axial region 30 can be made by the pipeline that uses metallic material, and according to the position needs, its outside has different smoothnesss.That is, need relative outstandingly, need grinding action is carried out on the surface of above-mentioned axial region 30 for this reason with the smoothness on the surface of the part of other parts friction.
In the outside of the pin body 41 of above-mentioned pin portion 40, be formed with fitting recess 47 being recessed on above-mentioned assembling projection 35 corresponding positions.To place above-mentioned assembling projection 35 in the above-mentioned fitting recess 47, thereby above-mentioned pin portion 40 is fixed on the above-mentioned axial region 30.Certainly, the method that above-mentioned axial region 30 is fixed in above-mentioned pin portion 40 be pressed into, a lot of methods such as welding.
In addition, connect above-mentioned pin portion 40 with above-below direction and be formed with machine oil stream 45, said engine oil stream 45 is communicated with the machine oil stream 32 of above-mentioned axial region 30, and is used for and will disperses to the top of above-mentioned crankshaft by the machine oil that said engine oil stream 32 transmits.Said engine oil stream 45 will connect above-mentioned cam pin 43, and above-mentioned pin portion 40 can be made by the raw material of casting or sintering circuit manufacturing by processing.
Be provided with pump port assembly department 50 in the underpart of above-mentioned axial region 30, above-mentioned pump port assembly department 50 is the parts that are used to install the pump port (not shown).The effect of above-mentioned pump port (not shown) is along with the rotation of crankshaft, to make machine oil be sent to machine oil stream 32.In above-mentioned pump port assembly department 50, roughly constitute the lower end that columnar installation body 51 is inserted in above-mentioned axial region 30 and fix.And, connecting above-mentioned installation body 51 and be formed with through hole 53, above-mentioned through hole 53 is that above-mentioned pump port inserts and fixing part.The effect of above-mentioned through hole 53 is the outside of the above-mentioned crankshaft that is interconnected and said engine oil stream 32.Above-mentioned pump port assembly department 50 also can be made by the raw material of casting or sintering circuit manufacturing by processing.
In addition, identical with above-mentioned pin portion 40, above-mentioned pump port assembly department 50 can be combined on the above-mentioned axial region 30 by using assembling projection and fitting recess.Certainly, also can use the method that is pressed into or welds, above-mentioned pump port assembly department 50 is combined on the above-mentioned axial region 30.
Below, will the process of the crankshaft of making the hermetic compressor among the present invention be described in detail.
As shown in Figure 5, in order to make axial region 30, the pipeline of drum is cut into set length.Above-mentioned axial region 40 and pump port assembly department 50 at first form set shape by casting or sintering circuit, and it is processed, and form the shape shown in Fig. 5 (a).Above-mentioned pin portion 40 and pump port assembly department 50 can form its shape by operations such as cutting and borings, and machine oil stream 45 and through hole 53.
Then, above-mentioned axial region 30 is processed.Shown in Fig. 5 b, above-mentioned axial region 30 can be by forming set shape as swaged forging (swaging) processing, that is, above-mentioned axial region 30 will be processed into its various piece and have set diameter respectively.That is,, form the outward appearance of above-mentioned axial region 30 by swaged forging processing or forging processing.As a reference, the processing operation of above-mentioned axial region 30, pin portion 40 and pump port assembly department 50 does not have sequencing.
After the completing of axial region 30, pin portion 40 and pump port assembly department 50, begin to assemble.For example, use the fixing above-mentioned pin of assembling projection 35 and fitting recess 47 portion 40 in the upper end of above-mentioned axial region 30, or carry out combination or welding manner carries out combination by the transition fit mode.
In the lower end of above-mentioned axial region 30, pump port assembly department 50 also can be fixed by using assembling projection and fitting recess, or carries out combination or welding manner carries out combination by the transition fit mode, illustrates the state of above-mentioned combination among Fig. 5 (c).
Then, shown in Fig. 5 (c), will carry out grinding to the part of the necessity in the surface of above-mentioned axial region 30, pin portion 40 and pump port assembly department 50.By above-mentioned grinding, can make the smoothness on surface of processing part more outstanding.In Fig. 5 (c), express the part of carrying out above-mentioned grinding with the picture oblique line.As a reference, before above-mentioned grinding, can on above-mentioned axial region 30, process required groove etc.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
As a reference, crankshaft of the present invention promptly by the method among the present invention, can be produced the crankshaft that is suitable for various compressors applicable to multiple compressor.
And in the present invention, above-mentioned pump port assembly department 50 is not to be the essential structure that is provided with, can be by on axial region 30, pump port being set, thus replace above-mentioned pump port assembly department 50.
To say the crank axle of the hermetic compressor among the present invention and the effect of manufacture method thereof below Bright.
In the present invention, when making crank axle, use is pre-formed the pipe shape of organic oil stream Axial region, this will make processing capacity on the whole relatively reduce, thus can be more prone to produce crank axle, And can significantly reduce the manufacturing cost of crank axle. Particularly, in the present invention, pipeline is made as axial region With, thereby need not to carry out other making to the operation of the machine oil stream of the length direction lengthening formation of crank axle, Therefore what can be more prone to produces crank axle.
Claims (6)
1. the crankshaft of a hermetic compressor is characterized in that, it includes following several sections:
Axial region, it forms by process pipeline, and connects its inside and be formed with the machine oil stream;
Pin portion, it is installed on the upper end portion of above-mentioned axial region, and being used to transmit power, it is made of the cam pin that is inserted in the pin body that above-mentioned axial region fixes and be integrally formed at above-mentioned pin body and transmit power, and connects above-mentioned pin body and cam pin is formed with the machine oil stream.
2. the crankshaft of hermetic compressor according to claim 1 is characterized in that:
Be inserted with the pump port assembly department in the underpart of above-mentioned axial region and fix, installation is used for supplying with to the machine oil stream of above-mentioned axial region the pump port of machine oil by above-mentioned pump port assembly department.
3. the crankshaft of hermetic compressor according to claim 2 is characterized in that:
Above-mentioned pin portion and above-mentioned pump port assembly department are fixed on the above-mentioned axial region by the some methods in the method for using fitting recess and assembling projection or being pressed into or welding.
4. the manufacture method of the crankshaft of a hermetic compressor is characterized in that, it includes following several steps:
Axial region is processed, made the external diameter of the pipeline of drum have set value, and put forward the step of supply and marketing department and pump port assembly department at each several part;
On above-mentioned axial region in conjunction with the step of above-mentioned pin portion and pump port assembly department;
Outward appearance to above-mentioned axial region, pin portion and pump port assembly department is carried out grinding and processing steps.
5. the manufacture method of the crankshaft of hermetic compressor according to claim 4 is characterized in that:
Above-mentioned axial region is by forging or the swaged forging processing and fabricating, and above-mentioned pin portion and pump port assembly department pass through casting or sintering circuit manufacturing, and processes its outside and make.
6. according to the manufacture method of the crankshaft of claim 4 or 5 described hermetic compressors, it is characterized in that:
Above-mentioned pin portion and pump port assembly department by form fitting recess and assembling projection carry out in conjunction with or be pressed in conjunction with or the method for solder bond in some methods be combined on the above-mentioned axial region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101303238A CN101205921A (en) | 2006-12-18 | 2006-12-18 | Crank axle of enclosed type compressor and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101303238A CN101205921A (en) | 2006-12-18 | 2006-12-18 | Crank axle of enclosed type compressor and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101205921A true CN101205921A (en) | 2008-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101303238A Pending CN101205921A (en) | 2006-12-18 | 2006-12-18 | Crank axle of enclosed type compressor and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101205921A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329403A (en) * | 2011-02-28 | 2013-09-25 | 爱信艾达株式会社 | Shaft |
| CN103527487A (en) * | 2013-06-26 | 2014-01-22 | 广东美芝制冷设备有限公司 | Rotary type compressor as well as bent axle and production method thereof |
| CN111065817A (en) * | 2017-09-05 | 2020-04-24 | 三菱重工制冷空调系统株式会社 | Method for manufacturing compressor housing, housing material and compressor housing |
-
2006
- 2006-12-18 CN CNA2006101303238A patent/CN101205921A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103329403A (en) * | 2011-02-28 | 2013-09-25 | 爱信艾达株式会社 | Shaft |
| CN103329403B (en) * | 2011-02-28 | 2015-07-22 | 爱信艾达株式会社 | Shaft |
| CN103527487A (en) * | 2013-06-26 | 2014-01-22 | 广东美芝制冷设备有限公司 | Rotary type compressor as well as bent axle and production method thereof |
| CN111065817A (en) * | 2017-09-05 | 2020-04-24 | 三菱重工制冷空调系统株式会社 | Method for manufacturing compressor housing, housing material and compressor housing |
| CN111065817B (en) * | 2017-09-05 | 2022-04-05 | 三菱重工制冷空调系统株式会社 | Method for manufacturing compressor housing, housing material and compressor housing |
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| PB01 | Publication | ||
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Open date: 20080625 |