CN209262036U - Nodular cast iron crankshaft for rotary compressor - Google Patents
Nodular cast iron crankshaft for rotary compressor Download PDFInfo
- Publication number
- CN209262036U CN209262036U CN201822165073.2U CN201822165073U CN209262036U CN 209262036 U CN209262036 U CN 209262036U CN 201822165073 U CN201822165073 U CN 201822165073U CN 209262036 U CN209262036 U CN 209262036U
- Authority
- CN
- China
- Prior art keywords
- shaft
- inclined shaft
- cast iron
- rotary compressor
- nodular cast
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses the nodular cast iron crankshafts for rotary compressor, belong to crankshaft technical field, nodular cast iron crankshaft for rotary compressor includes input shaft, rod journal, inclined shaft, crank, right support axis and output shaft, the inclined shaft connects two rod journals, the inclined shaft be divided into two sections it is hinged by being located at hinge among the inclined shaft.Nodular cast iron crankshaft disclosed by the utility model for rotary compressor, by the way that inclined shaft is hinged, both ends rod journal rotation when, inclined shaft can with length can carry out minor adjustment, it avoids in the long-term use, inclined shaft is produced fracture because receiving the effect of pulling force for a long time.
Description
Technical field
The utility model relates to crankshaft fields, more particularly, to the nodular cast iron crankshaft of rotary compressor.
Background technique
Crankshaft effect is subject to the power that connecting rod transmits, and is translated into rotary force output.The working environment of crankshaft is to its machine
Tool performance requirement is higher, and the process of crankshaft is complicated, its manufacture material is needed to have good cutting ability.Steel tool
There are good mechanical performance and cutting ability, can satisfy job requirement and the processing request of crankshaft.But price of steel product mistake
Height, it is unfavorable for the cost for reducing engine, if it is possible to crankshaft to be manufactured using the more cheap material of price, so that it may substantially
Reduce cost.
At present in the substitute of steel, spheroidal graphite cast-iron is highly valued, and is used widely, in actual use process
In, the effect that mutually rotates of the bracing diagonal by two rod journals inside compressor, inside suffered by pulling force can be gradually
Produce fracture it.
Utility model content
In order to overcome the drawbacks of the prior art, a kind of for revolving the technical problem to be solved by the utility model is to propose
The nodular cast iron crankshaft of rotary compressor, by the way that inclined shaft is hinged, both ends rod journal rotation when, inclined shaft can with length can
It to carry out minor adjustment, avoids in the long-term use, inclined shaft is produced fracture because of the effect of permanent under tension.
For this purpose, the utility model uses following technical scheme:
Nodular cast iron crankshaft provided by the utility model for rotary compressor, including including input shaft, pitman shaft
Neck, inclined shaft, crank, right support axis and output shaft, the input shaft are located at the crankshaft leftmost side, the right support axle position in
On the right side of the crankshaft, the right support axis right end is fixedly connected with the output shaft, the input shaft, rod journal, inclined shaft with
And be connected with each other between right support axis by the crank, between two rod journals, the inclined shaft connects the inclined shaft
Two rod journals are connect, the inclined shaft is divided into two sections, hinged by the hinge among the inclined shaft.
Preferably, the input shaft, right support axis surface are provided with wearing layer.
Preferably, the crank both ends are provided with chamfering.
Preferably, the output shaft is tapered shaft.
Preferably, the taper shaft end is provided with keyway.
The utility model has the following beneficial effects:
Nodular cast iron crankshaft provided by the utility model for rotary compressor, by the way that inclined shaft is hinged, at both ends
Rod journal rotate when, inclined shaft can with length can carry out minor adjustment, avoid in the long-term use, inclined shaft because for a long time
The effect of under tension and produce fracture.
Detailed description of the invention
Fig. 1 is the whole of the nodular cast iron crankshaft for rotary compressor provided in specific embodiment of the present invention
Body structural schematic diagram；
In figure:
1, left support axis；111, wearing layer；121, crank；2, inclined shaft；211, hinge；3, rod journal；4, right support axis；
5, output shaft；511, keyway.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, the nodular cast iron crankshaft for rotary compressor provided in the present embodiment, including input shaft 1,
Rod journal 3, inclined shaft 2, crank 121, right support axis 4 and output shaft 5, input shaft 1 are located at the crankshaft leftmost side, right support
Axis 4 is located on the right side of the crankshaft, and 4 right end of right support axis is fixedly connected with the output shaft 5, input shaft 1, rod journal 3, inclined shaft
It is connected with each other between 2 and right support axis 4 by the crank 121, between two rod journals 3, inclined shaft 2 connects inclined shaft 2
Two rod journals 3, it is two sections that inclined shaft 2, which is divided to, hinged by the hinge for being located at 2 centre of inclined shaft, by the way that inclined shaft 2 is hinged, is connected at both ends
Bar axle journal 3 rotate when, inclined shaft 2 can with length can carry out minor adjustment, avoid in the long-term use, inclined shaft 2 is because of length
The effect of long under tension and produce fracture.
In order to increase the crankshaft service life, further, input shaft 1,4 surface of right support axis are provided with wearing layer 111, wear-resisting
Layer 111 is to be fixed on 4 surface of output shaft 1 and right support axis by plating mode by metal alloy.
In order to increase fluency when crank rotation, further, 121 both ends of crank are provided with chamfering, pass through chamfering
Setting, when contacting crank 121 and lubricating oil etc., suffered resistance is more dispersed, improves the fluency of crank rotation.
In order to maintain the steady running of output shaft 5, further, output shaft 5 is tapered shaft, and the advantages of conical shaft 5 has
Two, axle journal first is variable cross-section, and the torsional shearing stress that such axle journal root (axle journal most big end) is born is than d-axis (axis
Diameter=axis of cone end diameter) it is good very much, it is not easy to off-axis due to alternate stress causes metal fatigue.
In order to reduce the prestressing force of output shaft 5, further, 5 end of output shaft is provided with keyway 511, and connecting key can be with
The transmitting of driving force is provided, therefore is not very high to the requirement of prestressing force.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality
In the case where with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to
In the range of the utility model protection.
Claims (5)
1. being used for the nodular cast iron crankshaft of rotary compressor, including input shaft (1), rod journal (3), inclined shaft (2), crank
(121), right support axis (4) and output shaft (5), the input shaft (1) are located at the crankshaft leftmost side, the right support axis
(4) it is located on the right side of the crankshaft, right support axis (4) right end is fixedly connected with the output shaft (5), the input shaft (1),
It is connected with each other between rod journal (3), inclined shaft (2) and right support axis (4) by the crank (121), it is characterised in that:
For the inclined shaft (2) between two rod journals (3), the inclined shaft (2) connects two rod journals (3), institute
It states inclined shaft (2) and is divided into two sections, it is hinged by being located at the inclined shaft (2) intermediate hinge.
2. the nodular cast iron crankshaft according to claim 1 for rotary compressor, it is characterised in that:
The input shaft (1), the right support axis (4) surface are provided with wearing layer (111).
3. the nodular cast iron crankshaft according to claim 1 for rotary compressor, it is characterised in that:
Crank (121) both ends are provided with chamfering.
4. the nodular cast iron crankshaft according to claim 1 for rotary compressor, it is characterised in that:
The output shaft (5) is tapered shaft.
5. the nodular cast iron crankshaft according to claim 4 for rotary compressor, it is characterised in that:
Tapered shaft (5) end is provided with keyway (511).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165073.2U CN209262036U (en) | 2018-12-21 | 2018-12-21 | Nodular cast iron crankshaft for rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822165073.2U CN209262036U (en) | 2018-12-21 | 2018-12-21 | Nodular cast iron crankshaft for rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209262036U true CN209262036U (en) | 2019-08-16 |
Family
ID=67560806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822165073.2U Expired - Fee Related CN209262036U (en) | 2018-12-21 | 2018-12-21 | Nodular cast iron crankshaft for rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209262036U (en) |
-
2018
- 2018-12-21 CN CN201822165073.2U patent/CN209262036U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20191221 |