CN210769213U - Oil pumping structure for compressor - Google Patents
Oil pumping structure for compressor Download PDFInfo
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- CN210769213U CN210769213U CN201921404901.1U CN201921404901U CN210769213U CN 210769213 U CN210769213 U CN 210769213U CN 201921404901 U CN201921404901 U CN 201921404901U CN 210769213 U CN210769213 U CN 210769213U
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Abstract
The utility model discloses a pump oil structure for compressor aims at solving the problem that refrigerator compressor oiled not enough under bent axle low-speed. The utility model discloses an including frame, crankshaft connecting sleeve, bent axle, spiral stick, be equipped with the oil pocket in the frame, the crankshaft connecting sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, and bent axle fastening connection is in crankshaft connecting sleeve upper end, and the spiral stick is rotatable to be installed in the crankshaft connecting sleeve, is equipped with the protruding muscle of spiral on the spiral stick outer wall, connects drive mechanism between crankshaft connecting sleeve and the spiral stick and makes the rotation opposite direction of crankshaft connecting sleeve and spiral stick. The oil pumping structure for the compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Description
Technical Field
The utility model relates to a refrigerator compressor, more specifically say that it relates to a compressor is with pump oil structure.
Background
With the improvement of living standard, people have more and more vigorous demands on low-vibration and low-noise refrigerators. The compressor, as a power component of the refrigerator system, is one of the key factors determining the vibration noise performance of the refrigerator. The lower the rotating speed of the compressor is, the smaller the mechanical friction loss, the slapping speed of the air suction and exhaust valve sheets and the average speed of air flow are, the lower the mechanical noise and the air flow noise of the compressor are, the noise level of the compressor has very obvious advantages compared with the high rotating speed, and the noise performance of the compressor on a refrigerator is better. The lowest using rotating speed of the refrigerator compressor shows a descending trend year by year in recent years. However, the compressor also faces some challenges when operating at a low rotation speed, the most obvious challenge is the oil pumping problem of the compressor lubricating system at the low rotation speed, the power source of the compressor oil pump of the current mainstream refrigerator is from the rotation motion of the crankshaft of the compressor, when the rotation speed of the compressor is low, the rotation speed of the crankshaft is low, the oil quantity on the oil pump is small, and the risk of insufficient oil supply or even no oil supply exists, which will aggravate the abrasion between the kinematic pairs and seriously affect the service life and reliability of the compressor.
In the running process of the refrigerator compressor, the oil pump conveys lubricating oil in an oil pool at the bottom of the compressor to each friction pair, the lubricating oil comprises a crankshaft and a crankshaft hole, a piston and a cylinder hole, a crankshaft end face supporting sliding bearing and the like, and lubrication and core cooling of each friction pair are realized. The oil pump structures commonly used by the oil pump of the refrigerator compressor at present mainly comprise two types: a vane centrifugal pump type structure and a spiral viscous pump type structure. The vane centrifugal pump type structure utilizes the centrifugal force generated by the rotation of the crankshaft to drive lubricating oil to form a U-shaped constant pressure surface in a hollow inner cavity of the crankshaft, the height of the constant pressure surface is the pumping height of an oil pump, the pumping height is in direct proportion to the square of the rotation speed of the crankshaft, and the vane centrifugal pump type structure is mainly used for a constant-rotation-speed refrigerator compressor with higher rotation speed. Spiral viscous pump formula structure adopts the cavity inner chamber at the bent axle to set up static hob, the hob surface is equipped with the spiral line body of evagination and forms the helicla flute with the cooperation of bent axle inner wall, when utilizing the bent axle rotation, the viscous shear force drive lubricating oil that the relative speed produced between rotatory bent axle inner wall and the static hob rises along the helicla flute, viscous shear force is directly proportional with the rotation rate, this structure mainly is applied to variable speed refrigerator compressor, compare in blade centrifugal pump formula structure can satisfy the pump oil demand under the compressor low rotational speed slightly, but if further reduce refrigerator compressor and use the rotational speed, it still has the risk of not enough oiling.
SUMMERY OF THE UTILITY MODEL
The utility model provides a refrigerator compressor not enough problem of oiling under the bent axle low-speed provides a pump oil structure for compressor, and it can satisfy the pump oil demand under refrigerator compressor's the lower rotational speed, and the pump oil is effectual, and the guarantee compressor moves under lower rotational speed, is favorable to reducing the vibration noise of refrigerator.
In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a pump oil structure for compressor, includes the frame, the bent axle adapter sleeve, the bent axle, the spiral stick, be equipped with the oil pocket in the frame, the bent axle adapter sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, bent axle fastening connection is in bent axle adapter sleeve upper end, the spiral stick is rotatable to be installed in the bent axle adapter sleeve, the spiral stick lower extreme extends the bent axle adapter sleeve downwards, be equipped with the protruding muscle of spiral on the spiral stick outer wall, connect drive mechanism between bent axle adapter sleeve and the spiral stick and make the rotation opposite direction of bent axle.
The crankshaft rotates to drive the crankshaft connecting sleeve to rotate, the crankshaft connecting sleeve drives the spiral rod to rotate through the transmission mechanism between the crankshaft connecting sleeve and the spiral rod, and the rotating directions of the crankshaft connecting sleeve and the spiral rod are opposite, so that the relative speed between the inner wall of the crankshaft connecting sleeve and the spiral rod is increased, the viscous shearing force required by pumping oil is increased, the oil pumping quantity and the oil pumping height are increased, the oil pumping requirement of a refrigerator compressor at a lower rotating speed is met, and the lower limit of the rotating speed use of a low rotating speed section of the compressor is widened. The oil pumping structure for the compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Preferably, the transmission mechanism comprises a driving gear, a first transmission gear, a second transmission gear, a driving gear, a driven shaft and an installation shaft, the driven shaft and the installation shaft are rotatably installed on the rack, the driving gear is fixedly installed on the crankshaft sleeve, the first transmission gear and the second transmission gear are fixedly installed on the driven shaft, the driving gear and the spiral rod are fixedly installed on the installation shaft, the driving gear is in meshing transmission with the first transmission gear, and the second transmission gear is in meshing transmission with the driving gear.
The driving gear rotates along with the crankshaft connecting sleeve, the driving gear drives the first transmission gear to rotate, the second transmission gear rotates along with the first transmission gear and drives the driving gear to rotate, the spiral rod rotates along with the driving gear, the crankshaft connecting sleeve and the spiral rod rotate reversely through the transmission mechanism, and the rotation is stable and reliable.
Preferably, the driving gear and the driving gear are coaxially arranged, the driving gear is arranged below the driving gear, an inner gear ring is arranged on the inner wall of the driving gear, and the second transmission gear is in meshing transmission with the inner gear ring. The device has compact structure and stable and reliable operation.
According to the other scheme, the transmission mechanism comprises a driving bevel gear, a transmission bevel gear, a driven bevel gear, a rotating shaft and an installation shaft, wherein the rotating shaft and the installation shaft are rotatably installed on the rack, the driving bevel gear is fixedly installed on the crankshaft connecting sleeve, the transmission bevel gear is fixedly installed on the rotating shaft, the driven bevel gear and the spiral rod are fixedly installed on the installation shaft, and the transmission bevel gear is in meshing transmission between the driving bevel gear and the driven bevel gear.
The driving bevel gear rotates along with the crankshaft connecting sleeve, the driving bevel gear drives the driven bevel gear to rotate through the transmission bevel gear, the spiral rod rotates along with the driven bevel gear, the crankshaft connecting sleeve and the spiral rod rotate reversely through the transmission mechanism, and the rotation is stable and reliable.
Preferably, the driven bevel gear and the driving bevel gear are coaxially arranged, the driven bevel gear is arranged below the driving bevel gear, and the axis of the rotating shaft is vertical to the axis of the mounting shaft. The arrangement structure is simple, and the assembly is convenient.
Preferably, the cross section of the spiral rod is in an H-shaped structure. The spiral rod with the H-shaped structure has light weight, good structural strength and convenient assembly.
As the preferred, crankshaft connecting sleeve upper end is equipped with the connecting seat, is equipped with the mounting groove on the connecting seat, and crankshaft lower extreme adaptation is installed in the mounting groove, and the crankshaft inner wall is parallel and level with crankshaft connecting sleeve inner wall. The crankshaft is arranged on the connecting seat at the upper end of the crankshaft connecting sleeve, and the installation is convenient and reliable. The inner wall of the crankshaft is flush with the inner wall of the crankshaft connecting sleeve, so that oiling is facilitated.
Compared with the prior art, the beneficial effects of the utility model are that: the oil pumping structure for the compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of embodiment 2 of the present invention;
in the figure: 1. the device comprises a rack, 2, a crankshaft connecting sleeve, 3, a crankshaft, 4, a spiral rod, 5, an oil cavity, 6, a spiral convex rib, 7, a driving gear, 8, a first transmission gear, 9, a second transmission gear, 10, a driving gear, 11, a driven shaft, 12, a mounting shaft, 13, a driving bevel gear, 14, a transmission bevel gear, 15, a driven bevel gear, 16, a rotating shaft, 17, a connecting seat, 18 and a mounting groove.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:
example 1: the utility model provides a pump oil structure for compressor (see figure 1), includes frame 1, crankshaft connecting sleeve 2, bent axle 3, spiral rod 4, is equipped with oil pocket 5 in the frame, and the crankshaft connecting sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, and bent axle fastening connection is in crankshaft connecting sleeve upper end, and crankshaft connecting sleeve upper end is equipped with connecting seat 17, is equipped with mounting groove 18 on the connecting seat, and bent axle lower extreme adaptation is installed in the mounting groove, and the bent axle inner wall is parallel and level with crankshaft connecting sleeve inner. The crankshaft connecting sleeve, the crankshaft and the screw rod are coaxially arranged. The spiral rod can be rotatably installed in the crankshaft connecting sleeve, the spiral convex rib 6 is arranged on the outer wall of the spiral rod, an oil passing gap is formed between the spiral convex rib and the inner wall of the crankshaft connecting sleeve, and the crankshaft connecting sleeve and the spiral rod are connected through a transmission mechanism to enable the rotation directions of the crankshaft connecting sleeve and the spiral rod to be opposite. The lower end of the spiral rod extends downwards to form the lower end of the crankshaft connecting sleeve.
The transmission mechanism comprises a driving gear 7, a first transmission gear 8, a second transmission gear 9, a driving gear 10, a driven shaft 11 and an installation shaft 12, wherein the driven shaft and the installation shaft are both vertically arranged. Driven shaft and installation axle all rotate to be installed in the frame, and the driving gear fastening is installed on the crankshaft sleeve, and first drive gear, second drive gear all fastening installation are on the driven shaft, and drive gear and the equal fastening installation of hob are on installation axle, and the driving gear meshes the transmission with first drive gear, and second drive gear meshes the transmission with drive gear. The driving gear and the driving gear are coaxially arranged, the driving gear is arranged below the driving gear, an inner gear ring is arranged on the inner wall of the driving gear, and the second transmission gear is in meshing transmission with the inner gear ring. The section of the screw rod is in an H-shaped structure, the upper end of the mounting shaft is inserted into the screw rod from an opening at the lower end of the screw rod, and the lower end of the mounting shaft is connected to the rack. A gap is arranged between the lower end of the crankshaft connecting sleeve and the driving gear. The external diameter of the driving gear is smaller than that of the driving gear, the external diameters of the first transmission gear and the second transmission gear are the same, and the external diameter of the first transmission gear is smaller than that of the driving gear.
The crankshaft rotates to drive the crankshaft connecting sleeve to rotate, the crankshaft connecting sleeve drives the spiral rod to rotate through the transmission mechanism between the crankshaft connecting sleeve and the spiral rod, and the rotating directions of the crankshaft connecting sleeve and the spiral rod are opposite, so that the relative speed between the inner wall of the crankshaft connecting sleeve and the spiral rod is increased, the viscous shearing force required by pumping oil is increased, the oil pumping quantity and the oil pumping height are increased, the oil pumping requirement of a refrigerator compressor at a lower rotating speed is met, and the lower limit of the rotating speed use of a low rotating speed section of the compressor is widened. The oil pumping structure for the refrigerator compressor can meet the oil pumping requirement of the refrigerator compressor at a lower rotating speed, has a good oil pumping effect, ensures that the compressor operates at the lower rotating speed, and is favorable for reducing the vibration noise of the refrigerator.
Example 2: a structure of oil pumping for a compressor (see attached figure 2) is similar to that of embodiment 1, and mainly different points are that a transmission mechanism in the embodiment comprises a driving bevel gear 13, a transmission bevel gear 14, a driven bevel gear 15, a rotating shaft 16 and an installation shaft, wherein the rotating shaft and the installation shaft are rotatably installed on a rack, the driving bevel gear is fixedly installed on a crankshaft connecting sleeve, the transmission bevel gear is fixedly installed on the rotating shaft, the driven bevel gear and a spiral rod are fixedly installed on the installation shaft, and the transmission bevel gear is meshed and transmitted between the driving bevel gear and the driven bevel gear. The driven bevel gear and the driving bevel gear are coaxially arranged, the driven bevel gear is arranged below the driving bevel gear, and the axis of the rotating shaft is vertical to the axis of the mounting shaft. The outer diameter of the driving bevel gear is the same as that of the driven bevel gear. The outer diameter of the drive bevel gear is larger than that of the transmission bevel gear. The installation axle is vertical to be set up, and the pivot level sets up. The other structure is the same as embodiment 1.
The above-described embodiments are merely preferred and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a compressor is with pump oil structure, characterized by, including the frame, the bent axle adapter sleeve, the bent axle, the spiral stick, be equipped with the oil pocket in the frame, the bent axle adapter sleeve rotates to be installed in the frame and the lower extreme stretches into in the oil pocket, bent axle fastening connection is in bent axle adapter sleeve upper end, the spiral stick is rotatable to be installed in the bent axle adapter sleeve, the spiral stick lower extreme extends the bent axle adapter sleeve downwards, be equipped with the protruding muscle of spiral on the spiral stick outer wall, connect drive mechanism between bent axle adapter sleeve and the spiral stick and make the rotation direction of bent.
2. The structure of claim 1, wherein the transmission mechanism comprises a driving gear, a first transmission gear, a second transmission gear, a driving gear, a driven shaft, and a mounting shaft, the driven shaft and the mounting shaft are rotatably mounted on the frame, the driving gear is tightly mounted on the crankshaft sleeve, the first transmission gear and the second transmission gear are tightly mounted on the driven shaft, the driving gear and the screw rod are tightly mounted on the mounting shaft, the driving gear is in meshing transmission with the first transmission gear, and the second transmission gear is in meshing transmission with the driving gear.
3. The oil pumping structure for the compressor as claimed in claim 2, wherein the driving gear is coaxially disposed with the driving gear, the driving gear is disposed below the driving gear, an inner wall of the driving gear is provided with an inner gear ring, and the second transmission gear is engaged with the inner gear ring for transmission.
4. The structure of claim 1, wherein the transmission mechanism comprises a driving bevel gear, a driven bevel gear, a rotating shaft, and a mounting shaft, the rotating shaft and the mounting shaft are rotatably mounted on the frame, the driving bevel gear is tightly mounted on the crankshaft coupling sleeve, the driving bevel gear is tightly mounted on the rotating shaft, the driven bevel gear and the spiral rod are tightly mounted on the mounting shaft, and the driving bevel gear is engaged and driven between the driving bevel gear and the driven bevel gear.
5. The structure of claim 4, wherein the driven bevel gear is coaxially disposed with the driving bevel gear, the driven bevel gear is disposed below the driving bevel gear, and the axis of the rotating shaft is perpendicular to the axis of the mounting shaft.
6. The structure of claim 1, wherein the spiral rod has an H-shaped cross-section.
7. The structure of claim 1, wherein the crank shaft connecting sleeve has a connecting seat at an upper end thereof, the connecting seat has a mounting groove, the lower end of the crank shaft is fittingly mounted in the mounting groove, and an inner wall of the crank shaft is flush with an inner wall of the crank shaft connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921404901.1U CN210769213U (en) | 2019-08-27 | 2019-08-27 | Oil pumping structure for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921404901.1U CN210769213U (en) | 2019-08-27 | 2019-08-27 | Oil pumping structure for compressor |
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| Publication Number | Publication Date |
|---|---|
| CN210769213U true CN210769213U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921404901.1U Active CN210769213U (en) | 2019-08-27 | 2019-08-27 | Oil pumping structure for compressor |
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| CN (1) | CN210769213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696771A (en) * | 2023-08-09 | 2023-09-05 | 鸿陆智能科技(山东)有限公司 | Lifting self-speed-regulating impeller device for MVR (mechanical vapor recompression) steam compressor |
-
2019
- 2019-08-27 CN CN201921404901.1U patent/CN210769213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116696771A (en) * | 2023-08-09 | 2023-09-05 | 鸿陆智能科技(山东)有限公司 | Lifting self-speed-regulating impeller device for MVR (mechanical vapor recompression) steam compressor |
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