阅读说明：本技术 一种法兰结构及压缩机 (Flange structure and compressor ) 是由 邓绍权 徐玉格 梁泽建 于 2019-10-31 设计创作，主要内容包括：本发明涉及一种法兰结构及压缩机,法兰结构包括相对设置的第一表面和第二表面,法兰结构上设有沿其自身厚度方向贯通第一表面和第二表面的油槽及通流孔,油槽及通流孔在法兰结构上间隔设置；其中,法兰结构上进一步设有连通油槽及通流孔的连接通道。将该法兰结构应用于压缩机,通过连接通道将排气高压与油池低压相连,利用压缩机内高低压差将油从下端油池引射到止推面处充分润滑,再通过连接通道与法兰结构的通流孔再次回到油池中,减少了下止推面磨损,降低了压缩机功耗、提升了压缩机性能系数。另外通流孔下排气的设计能够将制冷剂气体排入油池中,起到很好的消音降噪作用。(The invention relates to a flange structure and a compressor, wherein the flange structure comprises a first surface and a second surface which are oppositely arranged, the flange structure is provided with an oil groove and a through hole which penetrate through the first surface and the second surface along the thickness direction of the flange structure, and the oil groove and the through hole are arranged on the flange structure at intervals; wherein, the flange structure is further provided with a connecting channel for communicating the oil groove and the through flow hole. The flange structure is applied to the compressor, high exhaust pressure is connected with low pressure of the oil pool through the connecting channel, oil is injected to the thrust surface from the lower end oil pool to be fully lubricated by utilizing high-low pressure difference in the compressor, and then the oil is returned to the oil pool through the connecting channel and the through-flow hole of the flange structure again, so that the abrasion of the lower thrust surface is reduced, the power consumption of the compressor is reduced, and the performance coefficient of the compressor is improved. In addition, the design of exhausting gas under the through-flow hole can discharge refrigerant gas into the oil pool, and good noise reduction and silencing effects are achieved.)

1. A flange structure is characterized by comprising a first surface and a second surface which are oppositely arranged, wherein the flange structure is provided with an oil groove and a through hole which penetrate through the first surface and the second surface along the thickness direction of the flange structure, and the oil groove and the through hole are arranged on the flange structure at intervals; wherein, the flange structure is further provided with a connecting channel for communicating the oil groove with the through flow hole.

2. A flange structure according to claim 1, characterized in that a sink is provided on the side of the flange structure facing away from the second surface, which sink is in communication with the oil groove and the through-flow aperture.

3. The flange structure according to claim 2, wherein the sink is a chute; and/or the oil groove is a straight groove, a skewed groove or a spiral groove.

4. The flange structure according to claim 1, wherein the connecting passage intersects the through-flow hole at an angle θ smaller than or equal to 90 degrees.

5. A flange structure according to claim 1, wherein the connection passage has a circular, polygonal or quincunx cross-section in a direction perpendicular to its own axial direction.

6. The flange structure according to claim 1, wherein the flange structure comprises a flange body and a cover plate arranged on one side of the flange body far away from the first surface, and the cover plate is connected with the flange body; wherein the content of the first and second substances,

the discharge hole set up in on the apron, the discharge hole is followed the thickness direction of apron is run through the apron, the flange body towards one side of apron is equipped with sunk structure, with the flange body with form the exhaust chamber between the apron, sunk structure with the discharge hole corresponds the setting.

7. The flange structure according to claim 6, wherein a valve sheet is disposed between the flange body and the cover plate at a position corresponding to the through hole.

8. The flange structure according to claim 7, wherein a valve sheet baffle is disposed between the valve sheet and the cover plate and at a position corresponding to the through hole.

9. A flange structure according to claim 6, characterized in that the through-flow holes are conical through-flow holes.

10. A compressor, characterized by comprising a flange structure according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of compressors, in particular to a flange structure and a compressor.

Background

Disclosure of Invention

The embodiment of the invention provides a flange structure and a compressor, wherein the flange structure is applied to the compressor, so that the lubrication of a thrust surface under a crankshaft can be increased, the abrasion problem can be effectively solved, the friction resistance is reduced, the power consumption is reduced, and the refrigeration coefficient is improved.

On one hand, the flange structure comprises a first surface and a second surface which are oppositely arranged, the flange structure is provided with an oil groove and a through hole which penetrate through the first surface and the second surface along the thickness direction of the flange structure, and the oil groove and the through hole are arranged on the flange structure at intervals; wherein, the flange structure is further provided with a connecting channel for communicating the oil groove and the through flow hole.

According to an aspect of an embodiment of the invention, a sink is provided on the flange structure on a side facing away from the second surface, the sink being in communication with the oil groove and the through-flow aperture.

According to an aspect of an embodiment of the present invention, the sink tank is a chute; and/or the oil groove is a straight groove, a skewed groove or a spiral groove.

According to an aspect of an embodiment of the present invention, the connection passage intersects the through-flow hole, and an angle θ between the connection passage and the through-flow hole at the intersection position is smaller than or equal to 90 degrees.

According to an aspect of the embodiment of the present invention, the connecting passage has a circular, square or triangular cross-section in a direction perpendicular to its own axial direction.

According to one aspect of the embodiment of the invention, the flange structure comprises a flange body and a cover plate arranged on one side of the flange body far away from the first surface, wherein the cover plate is connected with the flange body; wherein, the through-flow hole sets up on the apron, and the through-flow hole runs through the apron along the thickness direction of apron, and the flange body is equipped with the sunk structure towards one side of apron to form the exhaust chamber between flange body and apron, the sunk structure corresponds the setting with the through-flow hole.

According to one aspect of the embodiment of the invention, through holes are formed in the flange body at positions corresponding to the through-flow holes and the exhaust cavity, and valve plates are arranged between the flange body and the cover plate at positions corresponding to the through holes.

According to one aspect of the embodiment of the invention, a valve plate baffle is arranged between the valve plate and the cover plate and at a position corresponding to the through hole.

According to one aspect of the embodiment of the invention, the valve plate is a strip-shaped plate structure, one end of the valve plate is fixedly connected with the flange body, the other end of the valve plate is arranged corresponding to the through hole, and the other end of the valve plate can cover the through hole.

According to one aspect of the embodiment of the invention, the size and the shape of the valve plate baffle are matched with those of the valve plate, one end of the valve plate baffle is fixedly connected with at least one of the flange body and the valve plate, and the other end of the valve plate baffle is arranged corresponding to the through hole.

According to one aspect of the embodiment of the invention, a round hole is formed at one end of the valve plate baffle, which corresponds to the through hole.

According to an aspect of an embodiment of the invention, the through-flow hole is a conical through-flow hole.

In another aspect, a compressor is provided according to an embodiment of the present invention, which includes the above-mentioned flange structure.

The flange structure comprises a first surface and a second surface which are oppositely arranged, the flange structure is provided with an oil groove and a through hole which penetrate through the first surface and the second surface along the thickness direction of the flange structure, and the oil groove and the through hole are arranged on the flange structure at intervals; wherein, the flange structure is further provided with a connecting channel for communicating the oil groove and the through flow hole. The flange structure is applied to the compressor, high exhaust pressure is connected with low pressure of the oil pool through the connecting channel, oil is injected to the thrust surface from the lower end oil pool to be fully lubricated by utilizing high-low pressure difference in the compressor, and then the oil is returned to the oil pool through the connecting channel and the through-flow hole of the flange structure again, so that the abrasion of the lower thrust surface is reduced, the power consumption of the compressor is reduced, and the performance coefficient of the compressor is improved. In addition, the design of exhausting gas under the through-flow hole can discharge refrigerant gas into the oil pool, and good noise reduction and silencing effects are achieved.

Drawings

Features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic plan view of a flange structure according to a first embodiment of the present invention;

FIG. 2 is a sectional view taken along line A-A of the flange configuration of FIG. 1;

fig. 3 and 4 are longitudinal sectional views of a flange structure according to a second embodiment of the present invention;

FIG. 5 is a schematic plan view of a flange structure according to a second embodiment of the present invention;

FIG. 6 is an isometric view of a valve plate of a second embodiment of the invention;

FIG. 7 is an isometric view of a valve sheet baffle according to a second embodiment of the invention;

fig. 8 is a schematic plan view of a compressor according to an embodiment of the present invention;

fig. 9 is a longitudinal sectional view of a compressor of an embodiment of the present invention;

fig. 10 is a partial structural sectional view of a compressor according to an embodiment of the present invention.

In the figure, the position of the upper end of the main shaft,

100-flange configuration;

10-a flange body; 11-a first surface; 12-a second surface; 13-an oil groove; 14-a through-flow aperture; 15-connecting the channels; 16-sinking a tank; 17-a through hole;

20-cover plate; 22-screws;

30-a valve plate baffle; 301-a second mounting hole;

40-valve plate; 401 — a first mounting hole;

201-an oil pool; 202-a crankshaft; 203-a roller; 204-cylinder; 205-flange member.

In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in detail in order to avoid unnecessarily obscuring the present invention; also, the dimensions of some of the structures may be exaggerated for clarity. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The following description will be given with the directional terms as they are shown in the drawings, and will not limit the specific structure of the flange structure 100 and the compressor of the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

The embodiment of the invention provides a flange structure 100, wherein the flange structure 100 is applied to a compressor, high exhaust pressure is connected with low pressure of an oil pool 201 through a connecting passage 15, oil is injected to a thrust surface from the oil pool 201 at the lower end to be fully lubricated by utilizing high-low pressure difference in the compressor, and then the oil returns to the oil pool 201 through the connecting passage 15 and a through-flow hole 14 of the flange structure 100, so that the abrasion of the lower thrust surface is reduced, the power consumption of the compressor is reduced, and the performance coefficient of the compressor is improved. In addition, the design of exhausting gas below the through-flow hole 14 can discharge refrigerant gas into the oil pool 201, and good noise reduction and noise reduction effects are achieved.

For a better understanding of the present invention, a flange structure 100 and a compressor according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 10.

Referring to fig. 1 to 10, fig. 1 is a schematic plan view illustrating a flange structure 100 according to a first embodiment of the present invention; fig. 2 shows a longitudinal sectional view of a flange structure 100 of a first embodiment of the present invention; fig. 3 and 4 each show a longitudinal sectional view of a flange structure 100 of a second embodiment of the present invention; fig. 5 shows a schematic plan view of a flange structure 100 according to a second embodiment of the present invention; FIG. 6 shows an isometric view of a valve plate 40 of a second embodiment of the invention; FIG. 7 shows an isometric view of a valve sheet baffle 30 of a second embodiment of the invention; fig. 8 is a schematic plan view illustrating a compressor according to an embodiment of the present invention; fig. 9 shows a longitudinal sectional view of a compressor of an embodiment of the present invention; fig. 10 shows a partial structural sectional view of a compressor according to an embodiment of the present invention.

Referring to fig. 1 to 7, in a flange structure 100 according to an embodiment of the present invention, the flange structure includes a first surface 11 and a second surface 12 that are opposite to each other, an oil groove 13 and a through-flow hole 14 are formed in the flange structure and penetrate through the first surface 11 and the second surface 12 along a thickness direction of the flange structure, and the oil groove 13 and the through-flow hole 14 are spaced apart from each other on the flange structure; wherein, the flange structure is further provided with a connecting channel 15 which is communicated with the oil groove 13 and the through flow hole 14.

In the flange structure 100 provided by the embodiment of the present invention, a sink 16 is disposed on a side of the flange structure away from the second surface 12, and the sink 16 is communicated with the oil groove 13 and the through-flow hole 14. The sink 16 has oil storage and connection functions, and may be disposed diagonally or vertically according to actual design requirements of the flange structure 100. In some alternative embodiments, the sink 16 is a chute, which can increase the oil storage area, increase the oil storage capacity, and better lubricate the lower thrust surface of the crankshaft 202.

In the flange structure 100 provided by the embodiment of the invention, the oil groove 13 is a straight groove, a skewed groove or a spiral groove, and the oil groove 13 has an oil guiding function. The connecting passage 15 is disposed to intersect the through-flow hole 14, and the angle θ between the connecting passage 15 and the through-flow hole 14 at the intersection position is less than or equal to 90 degrees. The connecting channel 15 is a channel connecting the high and low pressure sides of the compressor, and the cross section of the connecting channel 15 in the direction perpendicular to the axial direction of the connecting channel is circular, square, triangular or other variable shapes, and the direction and arrangement of the connecting channel can be changed in a reasonable area.

The flange structure 100 provided by the embodiment of the invention comprises a flange body 10 and a cover plate 20 arranged on one side of the flange body 10 far away from a first surface 11, wherein the cover plate 20 is connected with the flange body 10; the through-flow hole 14 is arranged on the cover plate 20, the through-flow hole 14 penetrates through the cover plate 20 along the thickness direction of the cover plate 20, a recessed structure is arranged on one side, facing the cover plate 20, of the flange body 10, and the recessed structure is arranged corresponding to the through-flow hole 14 so as to form an exhaust cavity between the flange body 10 and the cover plate 20; wherein, the flange body 10 is provided with through holes 17 and through holes 14 corresponding to the through holes 14 and the exhaust cavity. Optionally, the through-flow aperture 14 is a conical through-flow aperture 14.

In the flange structure 100 provided by the embodiment of the invention, the valve sheet 40 is arranged between the flange body 10 and the cover plate 20 and at a position corresponding to the through hole 17, and the valve sheet baffle 30 is arranged between the valve sheet 40 and the cover plate 20 and at a position corresponding to the through hole 17.

In the flange structure 100 provided by the embodiment of the invention, the connecting channel 15 connects the through-flow hole 14 of the flange structure 100 with the oil groove 13, and the exhaust outlet is connected with the oil discharge outlet, so that an injection oil return device is formed. After the flange structure 100 is installed on a compressor, when the compressor works, compressed refrigerant gas is discharged to the lower end of the compressor at a high speed in the through-flow hole 14 by utilizing the pressure difference between high exhaust pressure and low pressure of the oil pool 201 to form jet flow, entrainment flow is generated, a negative pressure area can appear in the connecting channel 15 at this time, oil in the oil pool 201 to be absorbed can be injected to enter the lower thrust surface of the crankshaft 202 to fully lubricate the lower thrust surface of the crankshaft 202, abrasion is reduced, and the refrigerant oil flows into the oil pool 201 after being mixed with the refrigerant through the through-flow hole 14 through the connecting channel 15. This provides a pump oil circuit that continuously lubricates the lower thrust surface of crankshaft 202.

The first embodiment:

referring to fig. 1 to 2, in particular, in the first embodiment, the flange structure 100 includes a flange structure, the flange structure includes a first surface 11 and a second surface 12 that are oppositely disposed, the flange structure is provided with an oil groove 13 and a through-flow hole 14 that penetrate through the first surface 11 and the second surface 12 along a thickness direction of the flange structure, and the oil groove 13 and the through-flow hole 14 are disposed at intervals on the flange structure; wherein, the flange structure is further provided with a connecting channel 15 which is communicated with the oil groove 13 and the through flow hole 14.

In the first exemplary embodiment, the flange is provided with a recess 16 on the side facing away from the second surface 12, the recess 16 communicating with the oil groove 13 and the throughflow bore 14. The sink tank 16 is a chute, and the oil tank 13 is a straight tank. The connecting passage 15 is disposed to intersect the through-flow hole 14, and the angle θ between the connecting passage 15 and the through-flow hole 14 at the intersection position is equal to 90 degrees. The connecting channel 15 is circular in cross-section in a direction perpendicular to its own axial direction.

Second embodiment:

referring to fig. 3 to 7, in particular, in the second embodiment, the flange structure 100 includes a flange body 10 and a cover plate 20 coupled to the flange body 10, wherein the cover plate 20 is connected to the flange body 10; the through-flow hole 14 is arranged on the cover plate 20, the through-flow hole 14 penetrates through the cover plate 20 along the thickness direction of the cover plate 20, a recessed structure is arranged on one side, facing the cover plate 20, of the flange body 10, and the recessed structure is arranged corresponding to the through-flow hole 14 so as to form an exhaust cavity between the flange body 10 and the cover plate 20; wherein, the flange body 10 is provided with a through hole 17 at the position corresponding to the through hole 14 and the exhaust cavity. Optionally, the through-flow aperture 14 is a conical through-flow aperture 14.

In the second embodiment, the valve sheet 40 is disposed between the flange body 10 and the cover plate 20 and at a position corresponding to the through hole 17, the valve sheet baffle 30 is disposed between the valve sheet 40 and the cover plate 20 and at a position corresponding to the through hole 17, in some optional embodiments, the flange body 10, the valve sheet 40, the valve sheet baffle 30, and the cover plate 20 are stacked, the first mounting hole 401 and the second mounting hole 301 are disposed on the valve sheet 40 and the valve sheet baffle 30, the valve sheet 40 and the valve sheet baffle 30 can be connected between the flange body 10 and the cover plate 20 at the first mounting hole 401 and the second mounting hole 301 by screws 22, one end of the valve sheet 40, which is far away from the first mounting hole 401, can cover the through hole 17, one end of the valve sheet baffle 30, which is far away from the second mounting hole 301, is provided with a circular hole, and the arrangement of the valve sheet 40 and the valve sheet baffle 30 can prevent. The connecting channel 15 is intersected with the conical through-flow hole 14, the included angle theta between the connecting channel 15 and the conical through-flow hole 14 is smaller than 90 degrees, and the cross section of the connecting channel 15 in the direction perpendicular to the axial direction of the connecting channel is circular.

When the compressor is operated, high-temperature and high-pressure refrigerant gas is exhausted into an exhaust cavity of the flange structure 100 through the flange structure 100, then the gas in the exhaust cavity is exhausted into the oil pool 201 through the through-flow hole 14 in the cover plate 20 in a high-speed and high-pressure state, negative pressure is formed in the connecting passage 15 of the flange structure 100, oil in the oil pool 201 is injected to the thrust surface of the flange structure 100 through the oil groove 13 to lubricate the lower thrust surface of the crankshaft 202, and then the oil is continuously injected into the exhaust channel of the cover plate 20 to be mixed with the refrigerant and exhausted to the oil pool 201. Thus, the refrigerant oil of the compressor forms an effective circulation through the oil pool 201 → the oil groove 13 → the connecting channel 15 → the through hole 14 → the oil pool 201, continuously lubricates the lower thrust surface of the crankshaft 202, effectively reduces the friction loss, reduces the power consumption and improves the performance coefficient.

Referring to fig. 8 to 10, an embodiment of the present invention further provides a compressor, including the flange structure 100, the compressor further includes a crankshaft 202, a roller 203, a cylinder 204, a flange 205, and a sealing silencer 201, wherein the sealing silencer 201 is hermetically mounted on the flange 205, the flange 205 and the cylinder 204 are also provided with through-flow holes 14, the through-flow holes 14 on the flange 205 and the cylinder 204 and the through-flow holes 14 on the flange structure 100 are correspondingly arranged in a direction perpendicular to the flange structure 100, the sealing silencer 201 can ensure that exhaust gas can be discharged from the through-flow holes 14 to the lower end oil pool 201, and the connecting channel 15 on the flange structure 100 connects the through-flow holes 14 of the flange structure 100 with the sink 16 of the flange structure 100 and the oil groove 13 of the flange structure 100 to form a passage. The through-flow hole 14 is connected with the exhaust high-pressure end of the flange 205, and is a high-pressure end; the oil groove 13, the sink groove 16, and the connection passage 15 of the flange structure 100 are connected to the low-pressure oil sump 201, which is a low-pressure side.

According to the compressor provided by the embodiment of the invention, when the compressor runs, the motor is electrified to drive the crankshaft 202 to rotate, and the compressor continuously sucks low-pressure low-temperature refrigerant gas from the suction port, compresses the low-pressure low-temperature refrigerant gas into high-temperature high-pressure gas and then discharges the high-temperature high-pressure gas from the exhaust port of the flange piece 205. The discharged high-temperature and high-pressure gas is guided into the through-flow hole 14 under the sealing action of the sealing silencer 201, and the through-flow hole 14 is on the high-pressure side; the connecting channel 15 of the flange structure 100 is connected with the low-pressure oil pool 201, and the inside of the connecting channel 15 is a low-pressure side; at this time, due to the pressure difference, the oil in the oil sump 201 is injected into the sink 16 through the oil groove 13, and at this time, the lower thrust surface of the crankshaft 202 can be well lubricated by the refrigerant oil, and then the refrigerant oil is continuously injected into the connecting passage 15 under the action of the pressure difference, and finally returns to the oil sump 201 again through the through hole 14 of the flange structure 100. The refrigeration oil is continuously injected to the lower thrust surface to lubricate the lower thrust surface and then returns to the oil pool 201 through the connecting channel 15 to form circulation, so that the lower thrust surface of the crankshaft 202 is lubricated, the friction resistance is reduced, the power consumption is reduced, the performance coefficient is improved, and meanwhile, the noise of the compressor can be effectively reduced as the high-temperature and high-pressure refrigerant gas is discharged into the oil pool 201 through the through hole 14.

While the invention has been described with reference to an alternative embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.