CN216044425U - Pump body assembly, compressor and air conditioner - Google Patents

Abstract

The utility model provides a pump body assembly, a compressor and an air conditioner, wherein the pump body assembly comprises: the crankshaft comprises a crankshaft, a first flange and a first cylinder, the first flange is arranged at one axial end face of the first cylinder, the periphery of the crankshaft is sleeved with the first flange and the first cylinder, a first radial channel is further radially arranged inside the first flange, the radial inner end of the first radial channel is communicated with the radial inner periphery of the first flange so as to suck oil, a first axial channel is further axially arranged on the first flange, one end of the first axial channel is communicated with the first radial channel, a second axial channel is further axially arranged on the first cylinder, and one axial end of the second axial channel is communicated with the first axial channel. According to the utility model, the oil discharged from the side hole of the long shaft of the crankshaft is effectively reduced, the oil is discharged by the flange and is carried into the motor flow channel to discharge the oil discharge of the compressor, the oil discharge rate is effectively reduced, and the problem of high oil discharge rate of the large-discharge-capacity compressor is solved.

Description

Pump body assembly, compressor and air conditioner

Technical Field

The utility model relates to the technical field of compressors, in particular to a pump body assembly, a compressor and an air conditioner.

Background

For a large-displacement rotor compressor, an oil pump is often adopted for oil supply in an oil pumping system design, an oil guide sheet can also be adopted for oil supply, the oil pumping amount is large when the oil pump is adopted for oil supply, the oil output of an upper flange spiral groove and a side hole at the top end of a long shaft of a crankshaft is large, the oil output of the side hole of the long shaft of the crankshaft is discharged by the flange and is brought into a motor flow channel to be discharged out of the compressor, and the oil output rate is increased.

Because the compressor in the prior art has the technical problems that the oil discharged from the side hole of the long shaft of the crankshaft is discharged by the flange and is carried into the motor circulation channel to be discharged out of the compressor, the oil discharge rate is increased, and the like, the pump body assembly, the compressor and the air conditioner are researched and designed.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the oil discharge rate of the compressor in the prior art is increased because the oil discharged from the side hole of the long shaft of the crankshaft is discharged by the flange and is brought into the motor circulation channel to be discharged out of the compressor, so that the pump body assembly, the compressor and the air conditioner are provided.

In order to solve the above problems, the present invention provides a pump body assembly including:

including bent axle, first flange and first cylinder, first flange sets up an axial terminal surface department of first cylinder, first flange with first cylinder all overlaps and locates the periphery of bent axle, first radial passageway has still radially been seted up to the inside of first flange, first radial passageway radially inner with the radial inner week intercommunication of first flange is in order can inhale oil, first axial passageway has still been seted up along the axial on the first flange, first axial passageway's one end with first radial passageway intercommunication, second axial passageway has still been seted up along the axial on the first cylinder, second axial passageway's axial one end with first axial passageway intercommunication.

In some embodiments, the oil receiving device further comprises a partition plate disposed at the other axial end face of the first cylinder, so that the first cylinder is located between the first flange and the partition plate, and a third axial channel is further axially disposed on the partition plate, and one axial end of the third axial channel is further communicated with the second axial channel on the first cylinder to receive oil.

In some embodiments, the oil separator further comprises a second cylinder, the second cylinder is disposed at the other axial end face of the partition plate, so that the partition plate is located between the first cylinder and the second cylinder, a fourth axial channel is further axially disposed on the second cylinder, and one axial end of the fourth axial channel is further communicated with the third axial channel on the partition plate to receive oil.

In some embodiments, a second radial passage is further disposed on the second cylinder in the radial direction, a radially inner end of the second radial passage communicates with the fourth axial passage, and a radially outer end of the second radial passage communicates with an outside of the second cylinder.

In some embodiments, the first flange is an upper flange, the first cylinder is an upper cylinder, the upper flange is disposed at an upper end of the upper cylinder, the crankshaft includes a long axis, an eccentric axis and a short axis, the long axis, the eccentric axis and the short axis are sequentially connected from top to bottom, and the first flange is sleeved on the long axis;

the baffle connect in the lower extreme of first cylinder, the second cylinder is lower cylinder, lower cylinder connect set up in the lower extreme of baffle.

In some embodiments, a first oil hole is axially formed in the crankshaft, a second oil hole is radially formed in the crankshaft at a position opposite to the first flange, and one end of the second oil hole communicates with the first oil hole and the other end communicates with a peripheral surface of the first flange, which is connected with the crankshaft.

In some embodiments, the first flange has a spiral groove provided on an inner peripheral wall thereof, the spiral groove extending spirally from a lower end of the first flange to an upper end of the first flange, the second oil hole opens at a lower end of the long shaft, and the second oil hole communicates between an outer peripheral wall of the long shaft and the inner peripheral wall of the first flange and allows oil to enter the spiral groove.

In some embodiments, the first flange is further provided with an oil storage groove, the oil storage groove is located at the radial inner side of the first radial passage and is communicated with the first radial passage, and the radial inner side of the oil storage groove is also communicated with the inner peripheral wall of the first flange; and/or the presence of a gas in the gas,

the radial outer end of the first radial channel extends to the radial outer peripheral wall of the first flange, and an oil plug is arranged at the radial outer end of the first radial channel to plug the radial outer end of the first radial channel; and the first axial channel and the radial outer end are spaced by a preset distance in the radial direction, and the preset distance is greater than 0.

The utility model also provides a compressor, which comprises the pump body assembly.

The utility model also provides an air conditioner which comprises the compressor.

The pump body assembly, the compressor and the air conditioner provided by the utility model have the following beneficial effects:

according to the utility model, the first radial channel is arranged in the first flange, so that oil at the inner peripheral gap of the first flange can be guided to flow into the first radial channel, and can flow out through the first axial channel of the first flange and the second axial channel arranged on the first cylinder, the second axial channel is communicated with the first axial channel, and the first axial channel is communicated with the first radial channel, so that the oil can effectively flow out through the first radial channel, the first axial channel and the second axial channel in sequence, thereby effectively reducing the oil discharged from the side hole of the crankshaft long shaft and brought into the motor circulation channel by the exhaust of the flange so as to discharge the oil discharge of the compressor, effectively reducing the oil discharge rate, solving the problem of large oil discharge rate, and also solving the problems that the oil storage space of the compressor with large discharge rate is small, and the lubricating oil is accumulated in the lower cavity of the motor. The large-discharge-capacity compressor adopts the oil pump to pump oil, the oil pumping capacity is large, the oil level of the compressor is low during actual operation, redundant lubricating oil is directly led back to the oil pool through the internal oil return hole by adding the internal circulation oil way, the oil discharge capacity of a pump body of the compressor is reduced, and the oil discharge rate of the compressor is further reduced.

Drawings

Fig. 1 is a cross-sectional view (oil path flow diagram) of the interior of a compressor in the prior art;

fig. 2 is a sectional view of the inside of the compressor (oil passage flow diagram) of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

The reference numerals are represented as:

1. a crankshaft; 1a, a long axis; 1b, an eccentric shaft; 1c, minor axis; 2. a first flange; 21. a helical groove; 22. an oil storage tank; 3. a first cylinder; 4. a first oil hole; 5. a second oil hole; 6. a first radial passage; 7. a first axial passage; 8. a second axial passage; 9. a partition plate; 10. a third axial passage; 11. a second cylinder; 12. a fourth axial passage; 13. a second radial passage; 14. an oil plug; 15. a lateral oil hole is formed in the top end of the crankshaft; 16. the motor lower cavity.

Detailed Description

As shown in fig. 2-3, the present invention provides a pump body assembly comprising:

including bent axle 1, first flange 2 and first cylinder 3, first flange 2 sets up an axial terminal surface department of first cylinder 3, first flange 2 with first cylinder 3 all overlaps and locates bent axle 1's periphery, first radial passageway 6 has still radially been seted up to the inside of first flange 2, the radial inner of first radial passageway 6 with the radial inner week intercommunication of first flange 2 is in order to inhale oil, first axial passageway 7 has still been seted up along the axial on the first flange 2, the one end of first axial passageway 7 with first radial passageway 6 intercommunication, second axial passageway 8 has still been seted up along the axial on the first cylinder 3, the axial one end of second axial passageway 8 with first axial passageway 7 intercommunication.

According to the utility model, the first radial channel is arranged in the first flange, so that oil at the inner peripheral gap of the first flange can be guided to flow into the first radial channel, and can flow out through the first axial channel of the first flange and the second axial channel arranged on the first cylinder, the second axial channel is communicated with the first axial channel, and the first axial channel is communicated with the first radial channel, so that the oil can effectively flow out through the first radial channel, the first axial channel and the second axial channel in sequence, thereby effectively reducing the oil discharge amount of the compressor, which is caused by the flange exhaust to bring the oil discharged from the side hole of the crankshaft long shaft into the motor circulation channel, and further discharge the oil from the compressor, effectively reducing the oil discharge rate, and solving the problems that the compressor with large discharge capacity has a small oil storage space and the lubricating oil is accumulated in the lower cavity of the motor. The large-discharge-capacity compressor adopts the oil pump to pump oil, the oil pumping capacity is large, the oil level of the compressor is low during actual operation, redundant lubricating oil is directly led back to the oil pool through the internal oil return hole by adding the internal circulation oil way, the oil discharge capacity of a pump body of the compressor is reduced, and the oil discharge rate of the compressor is further reduced.

The conventional oil circuit system is designed as shown in fig. 1, lubricating oil is pumped into a central oil hole of a crankshaft through an oil pump or an oil guide sheet, then is pumped into each oil storage space through each radial oil hole, and then enters each friction pair for lubrication, and the lubricating oil in each oil storage space takes away friction heat along with the flow of the oil. Lubricating oil enters the oil storage space of the upper flange, the upper eccentric part and the upper flange flexible groove after reaching the radial oil outlet of the upper flange, and then the lubricating oil enters the upper flange spiral groove along with the rotation of the crankshaft to lubricate the upper bearing and is pumped out to the lower cavity 16 of the motor. Along with the increase of the pumping oil quantity, the lubricating oil rises along the central hole of the crankshaft and then flows out of the pump body from the top side of the crankshaft to the oil hole 15 and enters the lower cavity 16 of the motor. The conventional oil circuit system is designed to pump oil to the lower cavity of the motor through the upper flange spiral groove and the radial side oil outlet at the top end of the long shaft of the crankshaft, meanwhile, the exhaust port of the flange on the pump body of the compressor is just positioned below the oil outlet, and lubricating oil pumped out of the spiral groove and the radial side oil outlet at the long shaft of the crankshaft enters a circulation channel of the motor along with exhaust, so that the oil output rate of the compressor is increased, and the performance and the reliability of the compressor are reduced.

In order to effectively reduce the oil discharge rate of the compressor, the influence of the pump oil on the oil discharge is reduced, and the oil discharge rate of the compressor is reduced. This patent designs an inner loop oil piping system structure, and each oilhole of bent axle is gone into to oil through the oil pump or lead the oil sheet pump, goes up the flange and sets up the helicla flute, goes up the flange and sets up radial oil return hole intercommunication upper flange flexible groove oil storage space, and the lubricating oil of pump income this space partly flows through the helicla flute, and partly gets into oil return passage through radial oil return hole and gets back to the oil bath through lower cylinder side to the oil outlet.

The design structure of the improved and designed system with the internal circulation oil path is shown in figure 2, lubricating oil is pumped into a central oil hole of a crankshaft from an oil pump or an oil guide sheet and then enters each friction pair through each radial oil hole for lubrication, the lubricating oil enters an upper eccentric part, an upper flange and a flexible groove oil storage space (an oil storage groove 22) after reaching a long-axis radial oil hole (a second oil hole 5) of the crankshaft, part of the lubricating oil is pumped out of a compressor pump body along a spiral groove to a lower cavity space of a motor along the rotation of the crankshaft after filling the oil storage space with the increase of the oil pumping amount of the oil pump or the oil guide sheet, the lubrication of an upper bearing is completed simultaneously, and the rest of the lubricating oil returns to an oil pool at the bottom of the compressor through an upper flange radial oil outlet (a first radial channel 6) and an upper cylinder, an upper partition plate, a lower partition plate and a lower cylinder axial oil return hole (a fourth axial channel 12) and then through a lower cylinder radial oil outlet (a second radial channel 13), an oil plug 14 is arranged outside the radial oil outlet hole (the first radial channel 6) of the upper flange, and the lubricating oil is limited to flow out of the oil plug. The design of the internal circulation oil circuit system can effectively reduce the influence of pump oil on the oil discharge rate of the compressor, reduce the oil discharge rate of the compressor, improve the performance and reliability of the compressor, ensure the oil level of the compressor during operation and reduce the risk of oil shortage of the compressor.

In some embodiments, the oil-receiving device further comprises a partition plate 9, the partition plate 9 is disposed at the other axial end face of the first cylinder 3, so that the first cylinder 3 is located between the first flange 2 and the partition plate 9, a third axial passage 10 is further axially disposed on the partition plate 9, and one axial end of the third axial passage 10 is further communicated with the second axial passage 8 on the first cylinder 3 to receive oil. The oil pump also can be communicated with the second axial channel on the first cylinder through the arrangement of the partition plate and the third axial channel arranged on the partition plate, so that oil is sucked from the second axial channel, the oil is effectively led out, and the oil discharge rate above the first flange is reduced.

In some embodiments, the oil-filled oil. The oil pump also can be communicated with the third axial channel on the partition plate through the arrangement of the second cylinder and the fourth axial channel arranged on the second cylinder, so that oil is sucked from the third axial channel, the oil is effectively led out, and the oil discharge rate above the first flange is further reduced.

In some embodiments, a second radial passage 13 is further disposed on the second cylinder 11 in the radial direction, a radially inner end of the second radial passage 13 is communicated with the fourth axial passage 12, and a radially outer end of the second radial passage 13 is communicated with the outside of the second cylinder 11. The oil suction device is also communicated with a fourth axial channel on the second cylinder through a second radial channel arranged on the second cylinder, so that oil is sucked from the fourth axial channel and is led out of the second cylinder through the second radial channel, and the oil discharge rate from the upper part of the first flange is further reduced.

In some embodiments, a first oil hole 4 is axially formed in the crankshaft 1, a second oil hole 5 is radially formed in the crankshaft 1 at a position opposite to the first flange 2, and one end of the second oil hole 5 communicates with the first oil hole 4 and the other end communicates with a peripheral surface of the first flange 2 that meets the crankshaft 1. The first oil hole formed in the crankshaft can suck oil from the bottom oil pool, and the second oil hole formed in the crankshaft along the radial direction can guide the oil in the first oil hole to a position between the outer peripheral surface of the crankshaft and the inner peripheral surface of the first flange so as to supply oil to the first radial channel on the first flange, prevent excessive oil from being discharged upwards and reduce the oil discharge rate.

In some embodiments, the first flange 2 is an upper flange, the first cylinder 3 is an upper cylinder, the upper flange is disposed at an upper end of the upper cylinder, the crankshaft 1 includes a long axis 1a, an eccentric axis 1b and a short axis 1c, the long axis 1a, the eccentric axis 1b and the short axis 1c are sequentially connected from top to bottom, and the first flange 2 is sleeved on the long axis 1 a;

the partition plate 9 is connected to the lower end of the first cylinder 3, and the second cylinder 11 is a lower cylinder which is connected to the lower end of the partition plate 9.

This is a preferred arrangement of the first flange, the first cylinder, the partition plate and the second flange of the present invention, i.e., the arrangement of the vertical compressor is the upper flange, the upper cylinder, the partition plate, the lower cylinder and the lower flange from top to bottom.

The utility model discloses an internal circulation oil path structure of a rotor compressor, which is characterized in that an upper flange end face is radially provided with oil return holes, the upper cylinder, an upper partition plate, a lower partition plate and a lower cylinder are simultaneously provided with axial oil return holes, and the lower cylinder is radially provided with oil outlet holes. The oil pump or the oil guide sheet pump oil enters each oil storage space through each radial oil hole and then enters the friction pair, the oil outlet of the radial oil outlet hole at the root part of the long shaft of the crankshaft enters the upper flange and the oil outlet space of the upper eccentric part of the crankshaft, part of lubricating oil is pumped out of the pump body through the spiral groove along with the rotation of the crankshaft and enters the lower cavity of the motor, and part of lubricating oil passes through the radial oil return hole of the upper flange, the axial oil return hole of the upper cylinder, the axial oil return hole of the upper partition plate, the axial oil return hole of the lower cylinder and finally returns to the oil pool through the radial oil outlet hole of the lower cylinder.

Oil enters a flexible groove oil storage space (an oil storage groove 22) of the upper flange after coming out of the side hole of the long shaft, the part of the oil storage space is communicated with the lower end of the spiral groove of the upper flange and is also communicated with a radial oil outlet hole (a first radial channel 6), a part of lubricating oil in the oil storage space (the oil storage groove 22) is pumped out from an outlet (the upper end surface of the upper flange) of the spiral groove 21 to enter a lower cavity 10 of the motor under the action of the rotating centrifugal force of the outer wall surface of the long shaft of the crankshaft along with the spiral groove 21, a part of the pumped lubricating oil enters the lower cavity of the motor and then falls back to an oil pool along with the action of gravity, and a part of the pumped lubricating oil is brought into a circulation hole of the rotor to enter the upper cavity of the motor along with exhaust. The rest of the lubricating oil in the oil storage space returns to the bottom oil pool through the first radial channel 6 of the upper flange, the first axial channel 7, the second axial channel 8 and the like.

In some embodiments, the inner peripheral wall of the first flange 2 is provided with a spiral groove 21, the spiral groove 21 extends spirally from the lower end of the first flange 2 to the upper end of the first flange 2, the second oil hole 5 opens at the lower end of the long shaft 1a, and the second oil hole 5 communicates between the outer peripheral wall of the long shaft 1a and the inner peripheral wall of the first flange 2, and allows oil to enter the spiral groove 21. The oil in the inner peripheral wall of the first flange can be led out upwards through the spiral groove formed in the inner peripheral wall of the first flange, so that the contact surface between the crankshaft and the upper flange is effectively lubricated.

In some embodiments, the first flange 2 further defines an oil reservoir 22, the oil reservoir 22 is located radially inside the first radial passage 6 and is communicated with the first radial passage 6, and the radially inside of the oil reservoir 22 is further communicated with the inner peripheral wall of the first flange 2; and/or the presence of a gas in the gas,

the radial outer end of the first radial channel 6 extends to the radial outer peripheral wall of the first flange 2, and an oil plug 14 is arranged at the radial outer end of the first radial channel 6 to plug the radial outer end of the first radial channel 6; and the first axial channel 7 is spaced from the radial outer end by a preset distance in the radial direction, and the preset distance is greater than 0.

The oil storage groove on the first flange can play a certain role in storing oil so as to store a certain amount of oil sucked by the inner peripheral surface of the flange and guide the oil into the first radial channel; the first radial channel can be effectively formed by extending the first radial channel to the radial outer peripheral wall of the first flange; the radial outer end of the first radial channel can be blocked by arranging the oil plug, so that the oil is prevented from flowing out of the first flange through the position and further reaching the lower motor cavity 10 to be discharged; the radial and radial outer end intervals of the first axial channel are greater than 0, the preset distance can ensure that oil is led out from the first axial channel, and the oil guide efficiency is improved.

The motor part does not need lubricating oil, the oil filling plug 14 prevents the lubricating oil from flowing out of the first radial channel 6, the oil still exists in the lower cavity of the motor and cannot return to the bottom of the oil pool, and the risk of oil shortage of the system is reduced.

The utility model also provides a compressor comprising the pump body assembly as described in any one of the preceding claims.

The utility model also provides an air conditioner which comprises the compressor.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A pump body assembly characterized by: the method comprises the following steps:

comprises a crankshaft (1), a first flange (2) and a first cylinder (3), wherein the first flange (2) is arranged at one axial end face of the first cylinder (3), the first flange (2) and the first cylinder (3) are both sleeved on the periphery of the crankshaft (1), a first radial channel (6) is also arranged in the first flange (2) along the radial direction, the radially inner end of the first radial passage (6) communicates with the radially inner periphery of the first flange (2) to enable oil suction, a first axial channel (7) is also arranged on the first flange (2) along the axial direction, one end of the first axial passage (7) communicates with the first radial passage (6), a second axial channel (8) is also arranged on the first cylinder (3) along the axial direction, one axial end of the second axial passage (8) is communicated with the first axial passage (7).

2. The pump body assembly of claim 1, wherein:

the oil receiving device is characterized by further comprising a partition plate (9), wherein the partition plate (9) is arranged at the other axial end face of the first cylinder (3), so that the first cylinder (3) is located between the first flange (2) and the partition plate (9), a third axial channel (10) is further axially arranged on the partition plate (9), and one axial end of the third axial channel (10) is further communicated with the second axial channel (8) on the first cylinder (3) to receive oil.

3. The pump body assembly of claim 2, wherein:

still include second cylinder (11), second cylinder (11) set up in another terminal surface department of the axial of baffle (9), make baffle (9) be located between first cylinder (3) and second cylinder (11), still be provided with fourth axial passageway (12) along the axial on second cylinder (11), the axial one end of fourth axial passageway (12) still with on baffle (9) third axial passageway (10) communicate to receive oil.

4. The pump body assembly of claim 3, wherein:

and a second radial channel (13) is further arranged on the second cylinder (11) along the radial direction, the radial inner end of the second radial channel (13) is communicated with the fourth axial channel (12), and the radial outer end of the second radial channel (13) is communicated with the outside of the second cylinder (11).

5. The pump body assembly of claim 3, wherein:

a first oil hole (4) is formed in the crankshaft (1) along the axial direction, a second oil hole (5) is formed in the position, opposite to the first flange (2), of the crankshaft (1) along the radial direction, one end of the second oil hole (5) is communicated with the first oil hole (4), and the other end of the second oil hole is communicated to the circumferential surface, connected with the crankshaft (1), of the first flange (2).

6. The pump body assembly of claim 5, wherein:

the first flange (2) is an upper flange, the first cylinder (3) is an upper cylinder, the upper flange is arranged at the upper end of the upper cylinder, the crankshaft (1) comprises a long shaft (1a), an eccentric shaft (1b) and a short shaft (1c), the long shaft (1a), the eccentric shaft (1b) and the short shaft (1c) are sequentially connected from top to bottom, and the first flange (2) is sleeved on the long shaft (1 a);

the partition plate (9) is connected to the lower end of the first air cylinder (3), the second air cylinder (11) is a lower air cylinder, and the lower air cylinder is connected to the lower end of the partition plate (9).

7. The pump body assembly of claim 6, wherein:

the inner peripheral wall of the first flange (2) is provided with a spiral groove (21), the spiral groove (21) extends from the lower end of the first flange (2) to the upper end of the first flange (2) in a spiral mode, the second oil hole (5) is formed in the lower end of the long shaft (1a), the second oil hole (5) is communicated between the outer peripheral wall of the long shaft (1a) and the inner peripheral wall of the first flange (2), and oil enters the spiral groove (21).

8. The pump body assembly according to any one of claims 1-7, wherein:

an oil storage groove (22) is further formed in the first flange (2), the oil storage groove (22) is located on the radial inner side of the first radial channel (6) and communicated with the first radial channel (6), and the radial inner side of the oil storage groove (22) is further communicated with the inner peripheral wall of the first flange (2); and/or the presence of a gas in the gas,

the radial outer end of the first radial channel (6) extends to the radial outer peripheral wall of the first flange (2), and an oil plug (14) is arranged at the radial outer end of the first radial channel (6) to plug the radial outer end of the first radial channel (6); and the first axial channel (7) is spaced from the radial outer end by a preset distance in the radial direction, and the preset distance is greater than 0.

9. A compressor, characterized by: comprising a pump body assembly according to any one of claims 1-8.

10. An air conditioner, characterized in that: comprising the compressor of claim 9.

Images