CN208534765U - Crankshaft for compressor and compressor - Google Patents
Crankshaft for compressor and compressor Download PDFInfo
- Publication number
- CN208534765U CN208534765U CN201821157034.1U CN201821157034U CN208534765U CN 208534765 U CN208534765 U CN 208534765U CN 201821157034 U CN201821157034 U CN 201821157034U CN 208534765 U CN208534765 U CN 208534765U
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- compressor
- filling hole
- utility
- model
- 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.)
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Links
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Compressor (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a bent axle and compressor for compressor, along being on a parallel with the axle center direction of bent axle is equipped with at least one filling hole, be equipped with in the filling hole and be greater than rather than the rigidity of size looks adaptation the packing of bent axle. The utility model discloses under the condition that the rigidity of guaranteeing the bent axle is the same, can reduce the external diameter size of its major and minor axis during production to can reduce the speed and the area of can rubbing of bent axle and flange relative motion, thereby improve the operating efficiency of compressor, reduce the dead weight of bent axle simultaneously, reduce the weight of compressor.
Description
Technical field
The utility model relates to Compressor Technology field more particularly to a kind of crankshafts and compressor for compressor.
Background technique
Crankshaft by the centrifugal force of gyrating mass, the gas inertia power of mechanical periodicity and the collective effect of reciprocal inertia force,
Crankshaft is set to bear the effect of flexion torsion load.Therefore it is required that crankshaft has enough strength and stiffness, journal surface needs wear-resisting, work
Work is uniform, balance is good.
In rotary compressor in compression process, crankshaft rigidity will affect the hunting frequency of compressor drum, and existing
The material of the crankshaft for compressor be usually spheroidal graphite cast-iron, the outer diameter of the major and minor axis of cast-iron crankshaft needs to meet certain
Size, biggish friction power loss can be generated between upper and lower flange hole, make compressor issue noise, if directly reducing it
Outer diameter, but can because material limit caused by rigidity it is inadequate.
Utility model content
In order to solve drawbacks described above existing in the prior art, the utility model proposes a kind of crankshaft for compressor and
Compressor.
The utility model proposes a kind of crankshafts for compressor, are equipped at least along the axis direction for being parallel to the crankshaft
One filling hole, described fill are equipped with the filling member that rigidity compatible with its size is greater than the crankshaft in hole.
Preferably, the filling hole includes the through-hole through the axle center of crankshaft.
Preferably, the filling hole includes the blind hole being arranged at axis.
Preferably, the filling hole includes the first filling hole being set at the axle center of crankshaft one end and is set to crankshaft other end axis
The second filling hole at the heart.
Preferably, the filling member is made of 35CrMo or 40Cr.
Preferably, the filling hole is made of the different multistage of internal diameter.
The utility model also proposed a kind of compressor using above-mentioned crankshaft.
Compared with prior art, for the utility model in the identical situation of rigidity for guaranteeing crankshaft, when production, can reduce it
The outer diameter of major and minor axis, so as to reduce crankshaft and flange relative motion speed and can friction area, to improve compression
The operational efficiency of machine, while the self weight of crankshaft is reduced, reduce the weight of compressor.
Detailed description of the invention
The utility model is described in detail below with reference to embodiment and attached drawing, in which:
Fig. 1 is the sectional view of the utility model；
Fig. 2 is the sectional view in the utility model both ends setting filling hole；
Fig. 3 is the front view of the utility model.
Specific embodiment
As shown in Figure 1, Figure 3, the utility model proposes a kind of crankshaft for compressor, the axle center of crankshaft 1, which is equipped with, to be filled out
Hole is filled, also can be set the direction of the parallel axis on crankshaft, filling hole may also set up multiple, fill in filling hole high-strength
The metal filling member 3 of degree makes crankshaft 1 in composite construction, and in the identical situation of rigidity for guaranteeing crankshaft, when production can reduce it
The outer diameter of major and minor axis, so as to reduce crankshaft 1 and flange relative motion speed and can friction area, to improve compression
The operational efficiency of machine, while the self weight of crankshaft 1 is reduced, reduce the weight of compressor.
In one embodiment of the utility model, filling hole is the through-hole through axis, can be reduced after filling filling member 3
The outer diameter of major and minor axis, and guarantee the rigidity of crankshaft.
As shown in Fig. 2, in another embodiment of the utility model, filling hole is separately positioned on the both ends of crankshaft, including the
One filling hole 21 and the second filling hole 22, then filling member 3 is filled respectively, the rigidity of crankshaft major and minor axis is improved, the length of crankshaft is made
The outer diameter of shaft portion reduces, and reduces the contact area with flange, improves the operational efficiency of compressor, wherein filling hole may be used also
It is positioned only at one end, is also within the protection scope of the utility model.
Parallel axis direction can also be arranged in the filling hole of the utility model, can symmetrically be set centered on axle center
It sets multiple, is within the protection scope of the utility model.
The filling hole of the utility model can be divided into the different multistage of internal diameter, it can be provided ecto-entad internal diameter successively contracts
It is small, convenient for filling.
Filling member 3 in the utility model is the high forged steel of intensity, is made of 35CrMo or 40Cr, can reach while protecting
It demonstrate,proves crankshaft rigidity and does not influence compressor drum hunting frequency, mitigate the noise of compressor.
The utility model also proposed a kind of compressor using above-mentioned crankshaft, easy switching strong operability and to system
Mating no influence reduces main screw lift, effectively improves the operational efficiency of compressor.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of crankshaft for compressor, which is characterized in that be equipped at least one along the axis direction for being parallel to the crankshaft
Hole is filled, is equipped with the filling member that rigidity compatible with its size is greater than the crankshaft in the filling hole.
2. being used for the crankshaft of compressor as described in claim 1, which is characterized in that the filling hole includes the axis through crankshaft
The through-hole of the heart.
3. being used for the crankshaft of compressor as described in claim 1, which is characterized in that the filling hole includes being arranged in crankshaft axis
Blind hole at the heart.
4. being used for the crankshaft of compressor as described in claim 1, which is characterized in that the filling hole includes being set to crankshaft one end
The first filling hole at axle center and the second filling hole at crankshaft other end axle center.
5. being used for the crankshaft of compressor as described in claim 1, which is characterized in that the filling hole multistage different by internal diameter
Composition.
6. being used for the crankshaft of compressor as described in claim 1, which is characterized in that the filling member uses 35CrMo or 40Cr
It is made.
7. a kind of compressor using any one of claim 1 to 6 crankshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157034.1U CN208534765U (en) | 2018-07-20 | 2018-07-20 | Crankshaft for compressor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821157034.1U CN208534765U (en) | 2018-07-20 | 2018-07-20 | Crankshaft for compressor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208534765U true CN208534765U (en) | 2019-02-22 |
Family
ID=65385388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821157034.1U Active CN208534765U (en) | 2018-07-20 | 2018-07-20 | Crankshaft for compressor and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208534765U (en) |
-
2018
- 2018-07-20 CN CN201821157034.1U patent/CN208534765U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |