CN209195632U - A kind of high-precision crank shaft of New Refrigerating compressor - Google Patents
A kind of high-precision crank shaft of New Refrigerating compressor Download PDFInfo
- Publication number
- CN209195632U CN209195632U CN201822163331.3U CN201822163331U CN209195632U CN 209195632 U CN209195632 U CN 209195632U CN 201822163331 U CN201822163331 U CN 201822163331U CN 209195632 U CN209195632 U CN 209195632U
- Authority
- CN
- China
- Prior art keywords
- crank
- shaft
- trunnion
- right support
- precision
- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a kind of high-precision crank shafts of New Refrigerating compressor, belong to crankshaft technical field, the high-precision crank shaft of New Refrigerating compressor includes input shaft, rod journal, crank, trunnion, right support axis and output shaft, the crank side is inclined-plane, the inclined-plane both ends extend respectively into plane where crank rim and support shaft top and bottom, and the rod journal side is welded and fixed with the crank side.The high-precision crank shaft of New Refrigerating compressor disclosed by the utility model, by changing crank shape, vertical plane is become into inclined surface, reduce connecting rod when moving up and down contact with crank, to reduce the friction between connecting rod and crank, improve precision of the crankshaft in rotation.
Description
Technical field
The utility model relates to crankshaft field more particularly to a kind of high-precision crank shafts of New Refrigerating compressor.
Background technique
Under the prior art, steel crankshaft is all used in daily life.Steel have good mechanical performance and machinability
Can, it can satisfy job requirement and the processing request of crankshaft.But price of steel product is excessively high, for reducing the cost of engine not
Benefit, if it is possible to crankshaft be manufactured using the more cheap material of price, so that it may cost be greatly reduced.
At present in the substitute of steel, spheroidal graphite cast-iron is highly valued, and is used widely, however spheroidal graphite cast-iron is done
Refrigeration compressor crankshaft in actual use, crankshaft can cause to damage because of its working environment to the structure of itself,
Such as wear, its weight changes crankshaft upon wear, can impact to the dynamic balancing of crankshaft.
Utility model content
In order to overcome the drawbacks of the prior art, the technical problem to be solved by the utility model is to propose a kind of novel system
The high-precision crank shaft of cold compressor has the effect of reducing inter deterioration consumption.
For this purpose, the utility model uses following technical scheme:
A kind of high-precision crank shaft of New Refrigerating compressor provided by the utility model, input shaft, rod journal, crank,
Trunnion, right support axis and output shaft, the input shaft are located at the crankshaft leftmost side, and the trunnion is located at described in two
Between rod journal, for the right support axle position on the right side of the crankshaft, it is right that the output shaft is fixedly connected on the right support axis
Side is connected with each other between the input shaft, rod journal and trunnion by crank, and the crank two sides are inclined-plane, institute
It states inclined-plane both ends and extends to the crank side by the trunnion, the input shaft and the right support axis lower planes respectively
Edge, the rod journal side are welded and fixed with the crank side, the input shaft, trunnion and the right support axis axis
Diameter is equal sized.
Preferably, the output shaft is tapered shaft, the side of the described biggish one end of the tapered shaft diameter of axle and the right support axis
Side is connected.
Preferably, the output shaft end is provided with keyway, and the keyway is flat key keyway.
Preferably, the input shaft, the trunnion and right support axis surface are provided with wearing layer.
Preferably, oil is provided on the input shaft, the trunnion, the right support axis and the rod journal
Hole.
Preferably, the crank and the input shaft, the trunnion, the right support axis and the rod journal connect
The place of connecing is provided with chamfering.
The utility model has the following beneficial effects:
A kind of high-precision crank shaft of New Refrigerating compressor provided by the utility model will be erected by changing crank shape
Facing directly becomes inclined surface, reduce connecting rod when moving up and down contact with crank, to reduce rubbing between connecting rod and crank
It wipes, improves precision of the crankshaft in rotation.
Detailed description of the invention
Fig. 1 is the whole knot of the high-precision crank shaft of the New Refrigerating compressor provided in specific embodiment of the present invention
Structure schematic diagram.
In figure:
1, input shaft；123, wear-resistant layer；2, trunnion；3, right support axis；4, crank；5, rod journal；6, output shaft；
611, 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 high-precision crank shaft of the New Refrigerating compressor provided in the present embodiment, input shaft 1, rod journal
5, crank 4, trunnion 2, right support axis 3 and output shaft 6, input shaft 1 are located at the crankshaft leftmost side, and trunnion 2 is located at two companies
Between bar axle journal 5, right support axis 3 is located on the right side of crankshaft, and output shaft 6 is fixedly connected on 3 right side of right support axis, input shaft 1, connecting rod
It is connected with each other between axle journal 5 and trunnion 2 by crank 4,4 two sides of crank are inclined-plane, and inclined-plane both ends are respectively by trunnion
2, input shaft 1 and 3 lower planes of right support axis extend to 4 edge of crank, and 5 side of rod journal and the welding of 4 side of crank are solid
Fixed, input shaft 1, trunnion 2 and 3 diameter of axle of right support axis are equal sized, in actual use, change 4 shape of crank, will
The vertical plane of crank 4 becomes inclined surface, reduces connecting rod when moving up and down with the contact of crank 4, to reduce connecting rod and song
Friction between handle 4 improves precision of the crankshaft in rotation.
In order to safeguard the steady running of output shaft 6, further, output shaft 6 is tapered shaft, the tapered shaft diameter of axle biggish one
There are two the advantages of end are connected with the side of right support axis 3, and conical shaft is stretched, and axle journal is variable cross-section first, such axle journal root
The torsional shearing stress that portion's (axle journal most big end) is born is better than d-axis (shaft diameter=axis of cone end diameter) 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 6, further, 6 end of output shaft is provided with keyway 611, and connecting key can be with
The transmitting of driving force is provided, therefore is not very high to the requirement of prestressing force.
In order to reduce the abrasion of axle journal, further, input shaft 1, trunnion 2 and 3 surface of right support axis are provided with resistance to
Layer 123 is ground, wearing layer is metal alloy.
In order to guarantee that crankshaft obtains sufficient lubrication at work, further, input shaft 1, trunnion 2, right support axis 3 with
Oilhole is provided on rod journal 5.
In order to increase the stability of crankshaft entirety, further, crank 4 and input shaft 1, trunnion 2, right support axis 3 with
And 5 junction of rod journal is provided with chamfering, by the improvement to crankshaft weak place, improves the fatigue strength of crankshaft, increases
The overall stability of crankshaft is added.
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 (6)
1. a kind of high-precision crank shaft of New Refrigerating compressor, including input shaft (1), rod journal (5), crank (4), trunnion
(2), right support axis (3) and output shaft (6), the input shaft (1) are located at the crankshaft leftmost side, trunnion (2) position
Between two rod journals (5), the right support axis (3) is located on the right side of the crankshaft, and the output shaft (6) is fixed to be connected
It is connected on the right side of the right support axis (3), passes through crank (4) phase between the input shaft (1), rod journal (5) and trunnion (2)
It connects, it is characterised in that:
Crank (4) two sides are inclined-plane, the inclined-plane both ends respectively by the trunnion (2), the input shaft (1) with
And right support axis (3) lower planes extend to the crank (4) edge, rod journal (5) side and the crank
(4) side is welded and fixed；
The input shaft (1), trunnion (2) and the right support axis (3) diameter of axle are equal sized.
2. the high-precision crank shaft of New Refrigerating compressor according to claim 1, it is characterised in that:
The output shaft (6) is tapered shaft, the side phase of described biggish one end of the tapered shaft diameter of axle and the right support axis (3)
Even.
3. the high-precision crank shaft of New Refrigerating compressor according to claim 2, it is characterised in that:
Output shaft (6) end is provided with keyway (611), and the keyway (611) is flat key keyway.
4. the high-precision crank shaft of New Refrigerating compressor according to claim 1, it is characterised in that:
The input shaft (1), the trunnion (2) and the right support axis (3) surface are provided with wearing layer (123).
5. the high-precision crank shaft of New Refrigerating compressor according to claim 1, it is characterised in that:
The input shaft (1), the trunnion (2) are provided with oil on the right support axis (3) and the rod journal (5)
Hole.
6. the high-precision crank shaft of New Refrigerating compressor according to claim 1, it is characterised in that:
The crank (4) and the input shaft (1), the trunnion (2), the right support axis (3) and the rod journal
(5) junction is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163331.3U CN209195632U (en) | 2018-12-21 | 2018-12-21 | A kind of high-precision crank shaft of New Refrigerating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822163331.3U CN209195632U (en) | 2018-12-21 | 2018-12-21 | A kind of high-precision crank shaft of New Refrigerating compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195632U true CN209195632U (en) | 2019-08-02 |
Family
ID=67430024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822163331.3U Expired - Fee Related CN209195632U (en) | 2018-12-21 | 2018-12-21 | A kind of high-precision crank shaft of New Refrigerating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081403A (en) * | 2021-04-09 | 2021-07-09 | 王朝熙 | Novel artificial joint prosthesis |
| CN114738261A (en) * | 2021-11-10 | 2022-07-12 | 烟台杰瑞石油装备技术有限公司 | Variable-diameter crankshaft and power end shell for plunger pump and assembling method thereof |
-
2018
- 2018-12-21 CN CN201822163331.3U patent/CN209195632U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113081403A (en) * | 2021-04-09 | 2021-07-09 | 王朝熙 | Novel artificial joint prosthesis |
| CN114738261A (en) * | 2021-11-10 | 2022-07-12 | 烟台杰瑞石油装备技术有限公司 | Variable-diameter crankshaft and power end shell for plunger pump and assembling method thereof |
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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 |
Granted publication date: 20190802 Termination date: 20191221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |