CN201991741U - Lubricating structure for crankshaft of refrigeration compressor - Google Patents
Lubricating structure for crankshaft of refrigeration compressor Download PDFInfo
- Publication number
- CN201991741U CN201991741U CN2011200323137U CN201120032313U CN201991741U CN 201991741 U CN201991741 U CN 201991741U CN 2011200323137 U CN2011200323137 U CN 2011200323137U CN 201120032313 U CN201120032313 U CN 201120032313U CN 201991741 U CN201991741 U CN 201991741U
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- asphalt channel
- lubricating structure
- crankshaft
- axis
- oil
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Abstract
The utility model provides a lubricating structure for a crankshaft of a refrigeration compressor and belongs to the technical field of compressors. The lubricating structure solves the problems that the overall lubricating effect of the crankshaft of the conventional refrigeration compressor is poor, the friction noise is large, an oil film on the surface of the crankshaft cannot be kept good, and the service life is short. In the lubricating structure for the crankshaft of the refrigeration compressor, the crankshaft comprises a semicircular balance part, wherein an eccentric shaft is arranged at one end of the balance part in an eccentric manner, a straight shaft is coaxially arranged at the other end of the balance part, an oil chamber is arranged in the eccentric shaft, an oil channel is arranged on the straight shaft, the oil channel passes through the balance part to be communicated with the oil chamber, the oil channel comprises a first oil channel and a second oil channel, the first oil channel is located inside an external section of the straight shaft, and the second oil channel is arranged at the circumference of an internal section of the straight shaft and is in a strip shape in the axial direction. Due to the lubricating structure, the oil film on the surface of the crankshaft is kept good, the friction noise is small, and the service life is long.
Description
Technical field
The utility model belongs to the Compressor Technology field, relates to a kind of lubricating structure of refrigeration type compressor crank shaft.
Background technique
The refrigeration type compressor plays compression refrigerant gas and supplies with the effect of vaporizer in chiller plants such as refrigerator, air-conditioning, be the critical component of chiller plant.
Refrigeration compressor is miniaturization more and more, the structure of common light duty compressor is that a cylinder seat is installed in the housing, cylinder seat is provided with cylinder and bent axle axis hole, bent axle includes crank portion, balance portion and d-axis portion, d-axis portion inserts in the crankshaft hole, piston places in the cylinder and by piston rod and is connected with crank portion, motor is installed on the cylinder seat and makes rotor axis of electric be set in the d-axis portion of bent axle, the rotation of rotor just drives piston by bent axle by piston rod and does back and forth activity like this, and realization is with the refrigerant gas compression and supply with vaporizer.
The lubricating system of traditional refrigeration type compressor crank shaft is to be provided with asphalt channel in d-axis portion, be provided with the oil groove mouth between d-axis portion and the balance portion, this d-axis is by the outer surface of the lubricated d-axis of above-mentioned oil groove mouth, in above-mentioned lubricating structure, the bent axle outer surface of d-axis when rotated can not lubricate fully, the whole lubrication effect of its bent axle is bad, and frictional noise surface big, that can not make bent axle keeps good oil film, and working life is short.
Summary of the invention
The purpose of this utility model is at existing deficiency, and the lubricating structure of the refrigeration type compressor crank shaft of a kind of energy sufficient lubrication is provided.
The purpose of this utility model can realize by following technical proposal: a kind of lubricating structure of refrigeration type compressor crank shaft, described bent axle comprises the semiorbicular balance portion that is, end off-centre in balance portion is provided with eccentric shaft, the other end is same to be axially arranged with d-axis, be provided with the grease chamber in the described eccentric shaft, described d-axis is provided with asphalt channel, this asphalt channel passes balance portion and is communicated with above-mentioned grease chamber, it is characterized in that, described asphalt channel comprises first asphalt channel and second asphalt channel, this first asphalt channel is positioned at the outer intersegmental part of d-axis, and second asphalt channel is arranged on the circumference of d-axis inner segment and along its axial direction and is strip.
The lubricating structure of this refrigeration type compressor crank shaft is to process first asphalt channel and second asphalt channel on the d-axis of bent axle, this bent axle is when work, the inner segment of d-axis is surrounded by crankshaft bearing seat, second asphalt channel is arranged on the circumference of d-axis and is strip becomes pipeline, refrigerator oil rises to second asphalt channel from first asphalt channel under action of centrifugal force, meanwhile, the part refrigerator oil forms thin and oil reservoir uniformly at the inner segment of d-axis, produces good lubricating and cooling effect.
In the lubricating structure of above-mentioned refrigeration type compressor crank shaft, the cross section of described second asphalt channel is semicircle.The purpose of She Zhiing is to make second asphalt channel and crankshaft bearing seat area of contact big like this, can carry out lubricated fully.
In the lubricating structure of above-mentioned refrigeration type compressor crank shaft, the grease chamber in the described eccentric shaft is the cylindricality grease chamber.The purpose of She Zhiing is that the volume of grease chamber is increased like this, can fully store lubricant oil.
In the lubricating structure of above-mentioned refrigeration type compressor crank shaft, the axial plane of described eccentric shaft is provided with oil groove always, and straight oil groove is communicated with above-mentioned grease chamber by the shafting oil hole.Lubricant oil in the grease chamber is gone into by straight oil groove and shafting oil orifice flow.
Compared with prior art, first asphalt channel of the lubricating structure of this refrigeration type compressor crank shaft is positioned at the outer intersegmental part of d-axis, second asphalt channel is arranged on the circumference of d-axis inner segment and along its axial direction and is strip, d-axis can lubricate when rotated fully, the whole lubrication effect that more helps bent axle, make the surface of bent axle keep good oil film, little, the long service life of frictional noise.
Description of drawings
Fig. 1 is the main TV structure schematic representation of the lubricating structure of this refrigeration type compressor crank shaft.
Among the figure, 1, balance portion; 2, eccentric shaft; 2a, grease chamber; 2b, straight oil groove; 2c, shafting oil hole; 3, d-axis; 3a, first asphalt channel; 3b, second asphalt channel.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, the lubricating structure of this refrigeration type compressor crank shaft is installed on the compressor crank shaft bearing support, this bent axle is mainly by being semiorbicular balance portion 1, eccentric shaft 2 and d-axis 3 are formed, end off-centre in balance portion 1 is provided with eccentric shaft 2, be provided with the 2a of grease chamber in the eccentric shaft 2, in order to make the volume maximum of the 2a of grease chamber, can fully store lubricant oil, the 2a of grease chamber in this eccentric shaft 2 is the cylindricality grease chamber, on the axial plane of eccentric shaft 2, be provided with oil groove 2b always, straight oil groove 2b is communicated with the above-mentioned 2a of grease chamber by shafting oil hole 2c, and the lubricant oil in the 2a of grease chamber passes through straight oil groove 2b and shafting oil hole 2c inflow.The other end of balance portion 1 is same to be axially arranged with d-axis 3, this d-axis 3 is provided with asphalt channel, described asphalt channel passes balance portion 1 and is communicated with the above-mentioned 2a of grease chamber, this asphalt channel mainly is made up of the first asphalt channel 3a and the second asphalt channel 3b, the first asphalt channel 3a is positioned at the outer intersegmental part of d-axis 3, and the second asphalt channel 3b is arranged on the circumference of d-axis 3 inner segments and along its axial direction and is strip; In order to make second asphalt channel and crankshaft bearing seat area of contact big, can carry out fully lubricatedly, actually add man-hour, the cross section of this second asphalt channel 3b be a semicircle.Bent axle is when work, the inner segment of d-axis 3 is surrounded by crankshaft bearing seat, the second asphalt channel 3b is arranged on the circumference of d-axis 3 and is strip becomes pipeline, refrigerator oil rises to the second asphalt channel 3b from the first asphalt channel 3a under action of centrifugal force, meanwhile, the part refrigerator oil forms thin and oil reservoir uniformly at the inner segment of d-axis 3, produces good lubricating and cooling effect.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (4)
1. the lubricating structure of a refrigeration type compressor crank shaft, described bent axle comprises the semiorbicular balance portion (1) that is, end off-centre in balance portion (1) is provided with eccentric shaft (2), the other end is same to be axially arranged with d-axis (3), be provided with grease chamber (2a) in the described eccentric shaft (2), described d-axis (3) is provided with asphalt channel, this asphalt channel passes balance portion (1) and is communicated with above-mentioned grease chamber (2a), it is characterized in that, described asphalt channel comprises first asphalt channel (3a) and second asphalt channel (3b), this first asphalt channel (3a) is positioned at the outer intersegmental part of d-axis (3), and second asphalt channel (3b) is arranged on the circumference of d-axis (3) inner segment and along its axial direction and is strip.
2. the lubricating structure of refrigeration type compressor crank shaft according to claim 1 is characterized in that, the cross section of described second asphalt channel (3b) is semicircle.
3. the lubricating structure of refrigeration type compressor crank shaft according to claim 1 is characterized in that, the grease chamber (2a) in the described eccentric shaft (2) is the cylindricality grease chamber.
4. the lubricating structure of refrigeration type compressor crank shaft according to claim 1 is characterized in that, the axial plane of described eccentric shaft (2) is provided with oil groove (2b) always, and straight oil groove (2b) is communicated with above-mentioned grease chamber (2a) by shafting oil hole (2c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323137U CN201991741U (en) | 2011-01-28 | 2011-01-28 | Lubricating structure for crankshaft of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200323137U CN201991741U (en) | 2011-01-28 | 2011-01-28 | Lubricating structure for crankshaft of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201991741U true CN201991741U (en) | 2011-09-28 |
Family
ID=44668230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200323137U Expired - Fee Related CN201991741U (en) | 2011-01-28 | 2011-01-28 | Lubricating structure for crankshaft of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201991741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903576A (en) * | 2012-10-05 | 2015-09-09 | 阿塞里克股份有限公司 | A hermetic compressor with reduced vibration |
-
2011
- 2011-01-28 CN CN2011200323137U patent/CN201991741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903576A (en) * | 2012-10-05 | 2015-09-09 | 阿塞里克股份有限公司 | A hermetic compressor with reduced vibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20120128 |