CN108890236A - The manufacturing method and compressor of compressor crank shaft - Google Patents
The manufacturing method and compressor of compressor crank shaft Download PDFInfo
- Publication number
- CN108890236A CN108890236A CN201810631987.5A CN201810631987A CN108890236A CN 108890236 A CN108890236 A CN 108890236A CN 201810631987 A CN201810631987 A CN 201810631987A CN 108890236 A CN108890236 A CN 108890236A
- Authority
- CN
- China
- Prior art keywords
- axle portion
- long axle
- oilhole
- shaft part
- processed
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- 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
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/10—Crankshafts assembled of several parts, e.g. by welding by crimping
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The present invention relates to compressor part fields, disclose a kind of manufacturing method of compressor crank shaft, include the following steps：It processes the first shaft part (10), and the first shaft part is processed as to have short axle (12), the first long axle portion (13) and the eccentric shaft (14) between short axle and the first long axle portion；The first oilhole (11) are processed on the first shaft part；It processes the second shaft part (20), and the second shaft part is processed as to have the second long axle portion (21)；The second oilhole (22) are processed in the second long axle portion；First long axle portion is fixedly connected with the second long axle portion, and is connected to the first oilhole with the second oilhole.In the present invention, the first shaft part and the second shaft part are divided into using by compressor crank shaft, and the fixed method of the first shaft part processed and the second shaft part is manufactured into crankshaft, the processing is simple, easy, to ensure that the production efficiency of crankshaft, and can be avoided because crankshaft center oilhole is thin and it is deep due to lead to processing difficulties the problem of.
Description
Technical field
The present invention relates to rotary compressor components, more particularly to the manufacturing method and compressor of compressor crank shaft.
Background technique
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, is the heart of refrigeration system
It is dirty.Wherein, crankshaft is the important component of compressor, so the requirement to its performance is relatively high.Crankshaft generally comprises axis body and sets
The eccentric shaft on the axis body outer surface is set, the axis body is divided into long axis and short axle (based on sometimes referred to as by the eccentric shaft
Axis and countershaft).
Traditional crankshaft generallys use following methods manufacture：1) by die casting, (so-called casting is cast iron materials
It will be poured into casting mold by the metal liquid of melting, the production of the part of shape needed for being obtained through cooled and solidified and performance
Journey), to form crankshaft, step includes mulling, moulding, melting and stokehold processing, casting, casting cleaning and product quality inspection
It tests；2) using the direct forging molding of rod iron formed crankshaft (forging be it is a kind of pressure is applied to metal stock using metal forming machinery,
It is set to generate plastic deformation to obtain the processing method with certain mechanical performance, certain shapes and size forging)；3) steel is used
Pipe welding fabrication forms crankshaft.
However, for the first manufacture, since foundry technology process is sufficiently complex, due also to stomata and dreg defect
Generation, high rejection rate, while manufacturing blank needs and reserving compared with margin then processed, stock utilization through multiple working procedure
It is low, manufacturing procedure is complicated, production efficiency is low, the environment big, easy to pollute due also to casting technique consumes energy；For second of manufacturer
Formula, since the center oilhole of steel crank shaft is thin and length causes processing efficiency very slow, production efficiency is lower；For the third manufacturer
Formula will lead to selected in this way since the diameter of axle of some compressor crank shafts is smaller (such as rotary compression machine crankshaft)
The manufacturing cost of steel pipe can be very high, and the cost of final crankshaft can be relatively high.
Summary of the invention
The purpose of the invention is to overcome the problems, such as that production efficiency of the existing technology is low, higher cost, one is provided
The manufacturing method of kind compressor crank shaft, the crankshaft of the manufacturing method manufacture of the compressor crank shaft is in the case where guaranteeing crankshaft rigidity
Production efficiency is higher and cost is relatively low.
To achieve the goals above, one aspect of the present invention provides a kind of manufacturing method of compressor crank shaft, the manufacturer
Method includes the following steps：
S1：The first shaft part is processed, and first shaft part is processed as with short axle, the first long axle portion and is located at described
Eccentric shaft between short axle and the first long axle portion；The first oilhole is processed on first shaft part；
S2：Process the second shaft part, and second shaft part be processed as to have the second long axle portion, the first long axle portion with
The second long axle portion is capable of forming the long axis of the compressor crank shaft；The second oilhole is processed in the described second long axle portion；
S3：By the fixed company of the described second long axle portion of the described first long axle portion of first shaft part and second shaft part
It connects, and is connected to first oilhole with second oilhole.
Preferably, the described first long axle portion and the described second long axle portion are fixed by welding.
Preferably, the side for the described first long axle portion and the described second long axle portion being passed through into soldering, electric resistance welding or Laser Welding
Formula is fixed.
Preferably, step S1 includes：
According to the specification of the compressor crank shaft, it is cut into the rod iron or steel pipe of appropriate size；
By the rod iron, perhaps steel pipe processes the shape of first shaft part and in the rod iron or steel for processing shape
First oilhole is processed on pipe.
Preferably, step S1 includes：The shape of first shaft part is processed by forging or the molding mode of turning.
Preferably, step S2 includes：
According to the specification of the compressor crank shaft, it is cut into the rod iron or steel pipe of appropriate size；
By the rod iron, perhaps steel pipe processes the shape of second shaft part and in the rod iron or steel for processing shape
Second oilhole is processed on pipe.
Preferably, the described first long axle portion is processed as with the enlarged diameter section that extends from the eccentric shaft and from institute
The outwardly extending reduced diameter section of enlarged diameter section is stated, and the aperture of second oilhole is processed as outside greater than the reduced diameter section
Diameter；
The step S3 includes：The outer wall of the reduced diameter section and the inner wall of second oilhole are welded and fixed.
Preferably, the described first long axle portion outer diameter is processed as to the outer diameter equal to the described second long axle portion；
The step S3 includes：The end face of described first long axle portion is aligned and is welded with the end face of the described second long axle portion
It is fixed.
Preferably, first oilhole axially penetrates through the described first long axle portion, and second oilhole axially penetrates through described
Two long axle portions.
Second aspect of the present invention provides a kind of compressor, and the compressor includes crankshaft, and the crankshaft is by the manufacture
Method is fabricated.
Through the above technical solutions, in the present invention, the first shaft part and the second shaft part are divided into using by compressor crank shaft,
And the fixed method of the first shaft part processed and the second shaft part is manufactured into crankshaft, the processing is simple, easy, to ensure that crankshaft
Production efficiency can be to avoid and due to compressor crank shaft being divided into the first shaft part and the second shaft part manufactures respectively
Because crankshaft center oilhole is thin and it is deep due to lead to processing difficulties the problem of, this also reduces the manufacturing costs of crankshaft, while also obtaining
Obtained the crankshaft of high rigidity.
Detailed description of the invention
Fig. 1 is the flow chart of the manufacturing method of compressor crank shaft provided by the invention；
Fig. 2 is the structural schematic diagram of the first shaft part of the first embodiment of the invention；
Fig. 3 is the structural schematic diagram of the second shaft part of the first embodiment of the invention；
Fig. 4 is the structural schematic diagram for the crankshaft for forming the second shaft part of the first shaft part of Fig. 2 and Fig. 3 after fixed；
Fig. 5 is the structural schematic diagram of the first shaft part of second of embodiment of the invention；
Fig. 6 is the structural schematic diagram of the second shaft part of second of embodiment of the invention；
Fig. 7 is the structural schematic diagram for the crankshaft for forming the second shaft part of the first shaft part of Fig. 5 and Fig. 6 after fixed.
Fig. 8 is the structural schematic diagram of the first shaft part of the third embodiment of the invention；
Fig. 9 is the structural schematic diagram of the second shaft part of the third embodiment of the invention；
Figure 10 is the structural schematic diagram for the crankshaft for forming the second shaft part of the first shaft part of Fig. 8 and Fig. 9 after fixed.
Description of symbols
The first shaft part of 10-；The first oilhole of 11-；
12- short axle；The long axle portion of 13- first；
13a- enlarged diameter section；13b- reduced diameter section；
14- eccentric shaft；The second shaft part of 20-；
The long axle portion of 21- second；The second oilhole of 22-.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right, top, bottom " is logical
Be often for direction shown in the drawings either for it is vertical, vertically or on gravity direction for the mutual position of each component
Set relationship description word.In addition, " inside and outside " refers to the inside and outside of the profile relative to each component itself.In addition, institute in the present invention
" multiple " referred to refer to two or more and including two.
The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
According to an aspect of the present invention, as shown in Figure 1, the manufacturing method that a specific embodiment of the invention provides includes
Following steps：
S1：The first shaft part 10 is processed, and the first shaft part 10 is processed as with short axle 12, the first long axle portion 13 and is located at
Eccentric shaft 14 between short axle 12 and the first long axle portion 13, and the first oilhole 11 is processed on the first shaft part 10；
S2：The second shaft part 20 is processed, and the second shaft part 20 is processed as to have the second long axle portion 21, the first long axle portion
13 and second long axle portion 21 be capable of forming the long axis of compressor crank shaft, and process the second oilhole in the described second long axle portion 21
22；
S3：The first of first shaft part 10 long axle portion 13 is fixedly connected with the second long axle portion 21 of second shaft part 20,
And it is connected to first oilhole 11 with the second oilhole 22.
Certainly, the roughing product of crankshaft are generally using the compressor crank shaft that above-mentioned steps manufacture.It should be noted that this
Invention signified S1, S2, S3 are intended merely to facilitate description, and the step of being not to the manufacturing method of the present invention is successive suitable
The limitation of sequence.
In the present invention, the first shaft part 10 and the second axis are divided into using by compressor (such as rotary compressor) crankshaft
Section 20, and the fixed method of the first shaft part 10 processed and the second shaft part 20 is manufactured into crankshaft, the processing is simple, easy, thus
It ensure that the production efficiency of crankshaft, and due to compressor crank shaft being divided into the first shaft part 10 and the second shaft part 20 is made respectively
Make, thus can to avoid because crankshaft center oilhole is thin and it is deep due to lead to processing difficulties the problem of, this also reduces the systems of crankshaft
This is caused, while also obtaining the crankshaft of high rigidity.
Wherein, the oil circuit for leading to oil is collectively formed in first oilhole 11 and the second oilhole 22 in the specific use process, with
It is elevated the lubricating oil of rotary compression motor spindle with the second oilhole 22 by first oilhole 11, and then takes to and song
The part of axis contact is lubricated.Further, first oilhole 11 axially penetrates through the first long axle portion 10, second oilhole
22 axially penetrate through the second long axle portion 21, and certainly, second oilhole 22 can also be along axial direction not through the second long axle portion 21.Example
Such as, as shown in Figures 2 to 4, as the first embodiment and second of embodiment of the invention, 11 axis of the first oilhole
To run through the first long axle portion 10, and the second oilhole 22 along axial direction not through the second long axle portion 21, it is also assumed that at this time second oil
Hole 22 is blind hole；As the third embodiment of the invention, as shown in Fig. 8 to Figure 10, first oilhole 11 is axially penetrated through
First long axle portion 10, second oilhole 22 axially penetrate through the second long axle portion 21.
Specifically, the first long axle portion 13 can fix in several ways with the second long axle portion 21, in the present invention,
In order to guarantee the good rigidity of crankshaft, and improve production efficiency, it is preferable that the first long axle portion 13 and the second long axle portion 21 are logical
The mode for crossing welding is fixed.Specifically, the described first long axle portion 13 and the second long axle portion 21 by soldering, electric resistance welding or are swashed
The mode of flush weld is fixed.
Further, step S1 includes：According to the specification of compressor crank shaft, it is cut into the rod iron or steel pipe of appropriate size；
By the rod iron, perhaps steel pipe processes the shape of the first shaft part 10 and processes on the rod iron or steel pipe for process shape
One oilhole 11.It is noted, of course, that since the aperture of the first oilhole 11 on the first shaft part 10 sometimes is smaller and the first oil
The length of hole 11 in the axial direction is longer (it is also assumed that the first oilhole 11 is relatively deep), if made of steel pipe, such case
The manufacturing cost of the steel pipe of appropriate size of lower selection itself is with regard to relatively high, and therefore, preferential selection processes first axle by rod iron
Section 10.Further, step S1 includes：The outer of first shaft part 10 is processed by forging or the molding mode of turning
Shape, in this way can be to avoid using some defects of casting technique bring.
Similar, step S2 includes：According to the specification of the compressor crank shaft, it is cut into the rod iron or steel of appropriate size
Pipe in order to improve the production efficiency, disposably can also be respectively used to the first shaft part 10 of processing and the second shaft part 20 by well cutting certainly
Rod iron or steel pipe；The rod iron or steel pipe are processed to the shape of second shaft part 20, and processing shape
The second oilhole 22 is processed on rod iron or steel pipe.
For the clearer description present invention, the present invention is carried out further below by three specific embodiments
It explains：
First embodiment：As in Figure 2-4, in the present embodiment, the described first long axle portion 13 is processed as having
The enlarged diameter section 13a extended from eccentric shaft 14 the and reduced diameter section 13b axially outwardly extended from enlarged diameter section 13a, and will
The aperture of second oilhole 22 is processed as the outer diameter greater than (being slightly larger than) reduced diameter section 13b；In this case, the step S3 packet
It includes：The outer wall of the reduced diameter section 13b and the inner wall of the second oilhole 22 are welded and fixed, as shown in Figure 4.
Second embodiment：As illustrated in figs. 5-7, in the present embodiment, the outer diameter of the described first long axle portion 13 is processed
For the outer diameter equal to the second long axle portion 21；In such cases, the step S3 includes：By the end face of the described first long axle portion 13
It is aligned and is welded and fixed with the end face of the second long axle portion 21, as shown in Figure 7.
Third embodiment：As seen in figs. 8-10, present embodiment and second embodiment are the difference is that the second oil
The hole depth in hole 22, as described above, in the present embodiment, the second oilhole 22 is axially through the second shaft part 20, and in this implementation
It is also by the way that the end face of the first long axle portion 13 to be aligned and be welded and fixed with the end face of the second long axle portion 21, such as Figure 10 institute in mode
Show.
According to another aspect of the present invention, a specific embodiment of the invention also provides a kind of compressor, the compressor
Including crankshaft, wherein the crankshaft is fabricated by the manufacturing method.For example, the compressor can be rotary pressure
Contracting machine.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
, can be with various simple variants of the technical solution of the present invention are made in the range of the technology design of invention, including each particular technique
Feature is combined in any suitable manner.In order to avoid unnecessary repetition, the present invention is to various combinations of possible ways
No further explanation will be given.But it should also be regarded as the disclosure of the present invention for these simple variants and combination, belongs to the present invention
Protection scope.
Claims (10)
1. a kind of manufacturing method of compressor crank shaft, which is characterized in that the manufacturing method includes the following steps：
S1：It processes the first shaft part (10), and first shaft part (10) is processed as with short axle (12), the first long axle portion (13)
And the eccentric shaft (14) between the short axle (12) and the first long axle portion (13)；On first shaft part (10)
Process the first oilhole (11)；
S2：It processes the second shaft part (20), and second shaft part (20) is processed as to have the second long axle portion (21), described first
Long axle portion (13) and the described second long axle portion (21) are capable of forming the long axis of the compressor crank shaft；In the described second long axle portion
(21) the second oilhole (22) are processed on；
S3：By second long axis of described the first of first shaft part (10) the long axle portion (13) and second shaft part (20)
Portion (21) is fixedly connected, and is connected to first oilhole (11) with second oilhole (22).
2. the manufacturing method of compressor crank shaft according to claim 1, which is characterized in that by the described first long axle portion (13)
It is fixed by welding with the described second long axle portion (21).
3. the manufacturing method of compressor crank shaft according to claim 2, which is characterized in that by the described first long axle portion (13)
It is fixed by way of soldering, electric resistance welding or Laser Welding with the described second long axle portion (21).
4. the manufacturing method of compressor crank shaft according to claim 1, which is characterized in that step S1 includes：
According to the specification of the compressor crank shaft, it is cut into the rod iron or steel pipe of appropriate size；
By the rod iron, perhaps steel pipe processes the shape of first shaft part (10) and in the rod iron or steel for processing shape
First oilhole (11) is processed on pipe.
5. the manufacturing method of compressor crank shaft according to claim 4, which is characterized in that step S1 includes：Pass through forging
Or the molding mode of turning processes the shape of first shaft part (10).
6. the manufacturing method of compressor crank shaft according to claim 4, which is characterized in that step S2 includes：
According to the specification of the compressor crank shaft, it is cut into the rod iron or steel pipe of appropriate size；
By the rod iron, perhaps steel pipe processes the shape of second shaft part (20) and in the rod iron or steel for processing shape
Second oilhole (22) is processed on pipe.
7. the manufacturing method of compressor crank shaft according to claim 2, which is characterized in that by the described first long axle portion (13)
It is processed as with the enlarged diameter section (13a) extended from the eccentric shaft (14) and from the enlarged diameter section (13a) to extension
The reduced diameter section (13b) stretched, and the aperture of second oilhole (22) is processed as outside greater than the reduced diameter section (13b)
Diameter；
The step S3 includes：The outer wall of the reduced diameter section (13b) and the inner wall of second oilhole (22) are welded and fixed.
8. the manufacturing method of compressor crank shaft according to claim 2, which is characterized in that by the described first long axle portion (13)
Outer diameter is processed as the outer diameter equal to the described second long axle portion (21)；
The step S3 includes：The end face of described first long axle portion (13) is aligned simultaneously with the end face of the described second long axle portion (21)
It is welded and fixed.
9. the manufacturing method of compressor crank shaft according to claim 1, which is characterized in that first oilhole (11) is axial
Through the described first long axle portion (10), second oilhole (22) axially penetrates through the described second long axle portion (21).
10. a kind of compressor, the compressor includes crankshaft, which is characterized in that the crankshaft is by any one of claim 1-9
The manufacturing method is fabricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631987.5A CN108890236A (en) | 2018-06-19 | 2018-06-19 | The manufacturing method and compressor of compressor crank shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631987.5A CN108890236A (en) | 2018-06-19 | 2018-06-19 | The manufacturing method and compressor of compressor crank shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108890236A true CN108890236A (en) | 2018-11-27 |
Family
ID=64345099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810631987.5A Pending CN108890236A (en) | 2018-06-19 | 2018-06-19 | The manufacturing method and compressor of compressor crank shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108890236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287940A (en) * | 2018-12-10 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Crankshaft and compressor |
| CN112833017A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Steel crankshaft manufacturing method, steel crankshaft and rotary compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63219890A (en) * | 1986-11-05 | 1988-09-13 | Riken Corp | Combined crankshaft for rotary compressor |
| DK156844B (en) * | 1981-08-03 | 1989-10-09 | Aspera Spa | CRANK SHAFT FOR SMALL STAMP MACHINERY, SPECIFIC HERMETIC COMPRESSORS FOR REFRIGERATORS |
| CN1423067A (en) * | 2001-12-04 | 2003-06-11 | 三星光州电子株式会社 | Method for machining enclosed reciprocating compressor crank axle |
| JP2005282761A (en) * | 2004-03-30 | 2005-10-13 | Steel Kaspi Co Ltd | Method for manufacturing crankshaft for compressor |
| CN103009021A (en) * | 2012-12-31 | 2013-04-03 | 四川绵竹鑫坤机械制造有限责任公司 | Segmented crankshaft machining process |
| CN104791368A (en) * | 2015-02-28 | 2015-07-22 | 上海标五高强度紧固件有限公司 | Separable crankshaft processing process |
-
2018
- 2018-06-19 CN CN201810631987.5A patent/CN108890236A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK156844B (en) * | 1981-08-03 | 1989-10-09 | Aspera Spa | CRANK SHAFT FOR SMALL STAMP MACHINERY, SPECIFIC HERMETIC COMPRESSORS FOR REFRIGERATORS |
| JPS63219890A (en) * | 1986-11-05 | 1988-09-13 | Riken Corp | Combined crankshaft for rotary compressor |
| CN1423067A (en) * | 2001-12-04 | 2003-06-11 | 三星光州电子株式会社 | Method for machining enclosed reciprocating compressor crank axle |
| JP2005282761A (en) * | 2004-03-30 | 2005-10-13 | Steel Kaspi Co Ltd | Method for manufacturing crankshaft for compressor |
| CN103009021A (en) * | 2012-12-31 | 2013-04-03 | 四川绵竹鑫坤机械制造有限责任公司 | Segmented crankshaft machining process |
| CN104791368A (en) * | 2015-02-28 | 2015-07-22 | 上海标五高强度紧固件有限公司 | Separable crankshaft processing process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287940A (en) * | 2018-12-10 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Crankshaft and compressor |
| CN111287940B (en) * | 2018-12-10 | 2022-04-05 | 安徽美芝制冷设备有限公司 | Crankshaft and compressor |
| CN112833017A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Steel crankshaft manufacturing method, steel crankshaft and rotary compressor |
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Application publication date: 20181127 |
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