CN211343272U - Novel wide-rotating-speed oil pumping device for compressor of frequency conversion refrigerator - Google Patents
Novel wide-rotating-speed oil pumping device for compressor of frequency conversion refrigerator Download PDFInfo
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- CN211343272U CN211343272U CN201921634165.9U CN201921634165U CN211343272U CN 211343272 U CN211343272 U CN 211343272U CN 201921634165 U CN201921634165 U CN 201921634165U CN 211343272 U CN211343272 U CN 211343272U
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Abstract
The utility model discloses a wide rotational speed of novel pump oil device for frequency conversion refrigerator compressor, including pump oil device shell (1), pump oil blade (2), pump oil device shell (1) is three-layer cylinder tower column structure, and its bottom is impeller pump oil reservoir (3), and its inside is provided with pump oil blade (2), and the middle level is bent axle assembled layer (4), and the top layer is once throttle layer (5), and its top is provided with orifice (6). The utility model discloses novel structure, convenient to use, performance are excellent, consequently have wide market prospect.
Description
Technical Field
The utility model belongs to the technical field of the compressor technique and specifically relates to a frequency conversion refrigerator compressor is with novel wide rotational speed pump oil device.
Background
The difference between the high and low rotating speeds of the motor of the current refrigerator compressor is 4-5 times, and the traditional oil pumping device has the following defects: the requirement of pumping oil at a higher rotating speed cannot be met; at a higher rotating speed, the oil pumping amount is too much, the oil pressure is too large, cavitation erosion is easily formed at an oil outlet, and the abrasion of a friction pair is aggravated; and because the screw pump is only hung on the crankcase by the hook, the screw pump is very easy to collide the inner wall of the oil suction pipe, and harmful noise is generated.
Disclosure of Invention
In order to solve the problem, the utility model provides a novel wide rotational speed pump oil device for frequency conversion refrigerator compressor novel structure, convenient to use, performance are excellent.
For solving the technical problem the utility model discloses a technical scheme does: the utility model provides a wide rotational speed of novel pump oil device for frequency conversion refrigerator compressor which characterized in that: the oil pumping device comprises an oil pumping device shell and oil pumping blades, wherein the oil pumping device shell is of a three-layer cylindrical tower-shaped structure, the bottom layer of the oil pumping device shell is a vane pump oil layer, the oil pumping blades are arranged in the oil pumping device shell, the middle layer is a crankshaft assembly layer, the top layer is a primary throttling layer, and the top of the oil pumping device shell is provided with a throttling hole.
The aperture of the throttling hole is 4-5 mm.
The outer side of the crankshaft assembly layer is in interference fit with the inner side of the crankshaft.
The top of the primary throttling layer is semicircular.
The number of the oil pumping blades is 6-8.
The inner diameter ratio of the primary throttle layer to the crankshaft assembly layer to the vane pump oil layer is 1: 1.25-1.4: 1.75-2.5.
The utility model discloses the beneficial technological effect who gains does:
1. the spiral pump oil is changed into the vane pump oil, the low-speed oil pumping capacity of the compressor is greatly improved, and the size and the number of the vanes can be adjusted to meet the oil pumping quantity requirements of compressors with different sizes;
2. the inner cavity of the oil pumping device is matched with the throttling hole and the inner cavity structure of the crankshaft to form a structure of a throttling expansion sound-deadening cavity, so that the flowing water noise can be effectively reduced;
3. when the compressor rotates at a high speed, the throttling hole can reduce the oil pressure in the inner cavity of the crankshaft, so that the oil pressure in the inner cavity of the crankshaft is lower than the saturated vapor pressure of the refrigerant, and a vapor pocket is not easy to separate out to generate cavitation;
4. the oil pumping device adopts an interference fit surface design, and the oil pumping device is tightly matched with the crankshaft, so that harmful noise can not be generated;
5. the oil pumping device is fixedly connected with the crankshaft, so that the process fluctuation is more stable.
Drawings
FIG. 1 is a schematic structural diagram of a wide-speed oil pumping device according to the present invention;
fig. 2 is a schematic structural diagram of the wide-speed oil pumping device of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The utility model provides a wide rotational speed of novel pump oil device for frequency conversion refrigerator compressor, includes pump oil device shell 1, pump oil blade 2, pump oil device shell 1 is three-layer cylinder tower column structure, and its bottom is vane pump oil reservoir 3, and its inside is provided with pump oil blade 2, and the middle level is bent axle assembled layer 4, and the top layer is throttling layer 5 once, and its top is provided with orifice 6.
The orifice 6 has a bore diameter of 4.5 mm.
The outer side of the crankshaft assembling layer 4 is in interference fit with the inner side of the crankshaft.
The top of the primary throttling layer 5 is semicircular.
The number of the oil pumping vanes 2 is 7.
The inner diameter of the primary throttling layer 5 is 9mm, the inner diameter of the crankshaft assembly layer 4 is 11.7mm, and the inner diameter of the vane pump oil layer 3 is 18 mm.
The utility model discloses wide rotational speed pump oil device's application method:
the oil pumping device is in interference connection with the crankshaft through an interference fit surface, oil pumping blades inside the oil pumping device are completely immersed below the oil level, and the crankshaft is driven to pump oil in a rotating mode through the motor.
The above description is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and the technical solution and the inventive concept of the present invention should be covered by the protection scope of the present invention with equivalent replacement or change.
Claims (6)
1. The utility model provides a wide rotational speed of novel pump oil device for frequency conversion refrigerator compressor which characterized in that: the oil pumping device comprises an oil pumping device shell (1) and oil pumping blades (2), wherein the oil pumping device shell (1) is of a three-layer cylindrical tower-shaped structure, the bottom layer of the oil pumping device shell is a blade pump oil layer (3), the oil pumping blades (2) are arranged in the oil pumping device shell, the middle layer of the oil pumping device shell is a crankshaft assembly layer (4), the top layer of the oil pumping device shell is a primary throttling layer (5), and a throttling hole (6) is formed in the.
2. The wide speed oil pumping device according to claim 1, wherein: the aperture of the throttling hole (6) is 4-5 mm.
3. The wide speed oil pumping device according to claim 1, wherein: the outer side of the crankshaft assembling layer (4) is in interference fit with the inner side of the crankshaft.
4. The wide speed oil pumping device according to claim 1, wherein: the top of the primary throttling layer (5) is semicircular.
5. The wide speed oil pumping device according to claim 1, wherein: the number of the oil pumping blades (2) is 6-8.
6. The wide speed oil pumping device according to claim 1, wherein: the inner diameter ratio of the primary throttle layer (5) to the crankshaft assembly layer (4) to the vane pump oil layer (3) is 1: 1.25-1.4: 1.75-2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921634165.9U CN211343272U (en) | 2019-09-29 | 2019-09-29 | Novel wide-rotating-speed oil pumping device for compressor of frequency conversion refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921634165.9U CN211343272U (en) | 2019-09-29 | 2019-09-29 | Novel wide-rotating-speed oil pumping device for compressor of frequency conversion refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343272U true CN211343272U (en) | 2020-08-25 |
Family
ID=72131915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921634165.9U Active CN211343272U (en) | 2019-09-29 | 2019-09-29 | Novel wide-rotating-speed oil pumping device for compressor of frequency conversion refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343272U (en) |
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2019
- 2019-09-29 CN CN201921634165.9U patent/CN211343272U/en active Active
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