阅读说明：本技术 压缩装置 (Compression device ) 是由 钟九九 林瑜 黄国文 于 2020-06-05 设计创作，主要内容包括：本发明公开一种压缩装置,包括一压缩单元,所述压缩单元包括压缩片以及设置在所述压缩片周围的至少一个转轮,所述转轮设置在一环形压缩盘上,所述环形压缩盘与所述压缩片之间形成流体通道。每一转轮具有一缺口,所述压缩片对应所述缺口处设置有一凸起,所述压缩片的凸起的外缘与所述环形压缩盘之间无接触密封,所述转轮与所述压缩片外切,所述转轮与所述压缩片以相反的方向运动时,所述流体通道内在所述凸起的两侧形成正负压。(The invention discloses a compression device, which comprises a compression unit, wherein the compression unit comprises a compression sheet and at least one rotating wheel arranged around the compression sheet, the rotating wheel is arranged on an annular compression disc, and a fluid channel is formed between the annular compression disc and the compression sheet. Each rotating wheel is provided with a notch, a bulge is arranged at the position of the compression sheet corresponding to the notch, the outer edge of the bulge of the compression sheet is in non-contact sealing with the annular compression disc, the rotating wheel is externally tangent to the compression sheet, and when the rotating wheel and the compression sheet move in opposite directions, positive pressure and negative pressure are formed at two sides of the bulge in the fluid channel.)

1. A compression device comprises a compression unit, wherein the compression unit comprises a compression sheet and at least one rotating wheel arranged around the compression sheet, the rotating wheel is arranged on an annular compression disc, a fluid channel is formed between the annular compression disc and the compression sheet, and the compression device is characterized in that each rotating wheel is provided with a notch, a protrusion is arranged at the position of the compression sheet corresponding to the notch, the outer edge of the protrusion of the compression sheet is in contactless sealing with the annular compression disc, the rotating wheel is externally tangent to the compression sheet, and when the rotating wheel and the compression sheet move in opposite directions, positive and negative pressures are formed at two sides of the protrusion in the fluid channel.

2. The compression device of claim 1, wherein the number of wheels is three, the three wheels being disposed substantially evenly around the compression plate.

3. The compression device of claim 1, further comprising a gear train to drive the wheel and the compression lobe.

4. The compression device of claim 1 wherein the curvature of the outer edge of said projection is the same as the curvature of the inner edge of said annular compression disc and the linear velocity of said rotating wheel is the same as the linear velocity of said compression lobe during movement.

5. The compression apparatus as claimed in claim 1, wherein said compression unit further comprises a fluid inflow passage and a fluid outflow passage, said rotor being provided with a discharge groove around its rotational axis, said fluid inflow passage communicating with said discharge groove.

6. A compressive device as claimed in claim 5, wherein the fluid outflow passage comprises a flow channel communicating with the fluid passage, the flow channel having a central angle of at least 180 degrees divided by the number of wheels.

7. A compressive device as claimed in claim 6, wherein the flow channel is arcuate at both ends.

8. The compressing apparatus as set forth in claim 6, wherein the number of the compressing units is two, the two compressing units are disposed one above the other, and a gear train is disposed between the two compressing units to drive the two compressing units simultaneously.

9. The compression device of claim 8, wherein the flow channels in the two compression units are uniformly offset to achieve 360 degree compression.

10. A compression device according to claim 8, wherein the flow channels in the two compression units partially intersect in the axial direction.

Technical Field

The invention relates to a compression device, in particular to an oil-free lubrication compression device.

Background

The existing compression device has violent motion friction, pulse and noise no matter a displacement pump compresses by utilizing the telescopic motion of a compression sheet or a plunger pump compresses by utilizing the reciprocating motion of a plunger.

Disclosure of Invention

In view of the above, the present invention provides a compression apparatus that effectively improves the above-mentioned drawbacks.

A compression device comprising a compression unit comprising a compression plate and at least one runner disposed around the compression plate, the runner being disposed on an annular compression disc, the annular compression disc and the compression plate forming a fluid passageway therebetween. Each rotating wheel is provided with a notch, a bulge is arranged at the position of the compression sheet corresponding to the notch, the outer edge of the bulge of the compression sheet is in non-contact sealing with the annular compression disc, the rotating wheel is externally tangent to the compression sheet, and when the rotating wheel and the compression sheet move in opposite directions, positive pressure and negative pressure are formed at two sides of the bulge in the fluid channel.

Preferably, the number of the rotating wheels is three, and the three rotating wheels are approximately uniformly arranged around the compression sheet.

Preferably, the compressing device further comprises a gear set for driving the rotating wheel and the compressing plate.

Preferably, the radian of the outer edge of the protrusion is the same as that of the inner edge of the annular compression disc, and the linear speed of the rotating wheel is the same as that of the compression sheet in the movement process.

Preferably, the compression unit further comprises a fluid inflow channel and a fluid outflow channel, the rotating wheel is provided with a drainage groove around the rotating shaft thereof, and the fluid inflow channel is communicated with the drainage groove.

Preferably, the fluid outflow passage comprises a flow groove communicating with the fluid passage, and the central angle of the flow groove is at least 180 degrees divided by the number of the rotating wheels.

Preferably, both ends of the circulation groove are arc-shaped.

Preferably, the number of the compression units is two, the two compression units are arranged up and down, and a gear set is arranged between the two compression units to drive the two compression units simultaneously.

Preferably, the flow channels in the two compression units are uniformly staggered to achieve 360 degree compression.

Preferably, the flow channels in the two compression units are partially crossed in the axial direction.

The outer edge of the bulge of the compression sheet in the compression device and the annular compression disc have the same radian, so that non-contact sealing is realized, the rotating wheel is externally tangent to the compression sheet, so that no friction exists between the compression sheet and the rotating wheel as well as between the compression sheet and the compression disc during compression while sealing of a flow channel is realized, no noise exists, no lubrication is needed, and oil-free compression of fluid is realized. Meanwhile, the upper and lower groups of compression units and the circulation groove with the arc-shaped end part are adopted to realize the stable compression of fluid at 360 degrees, and moreover, through the drainage groove arranged on the rotating wheel, the compression pulse of the fluid in the fluid channel is effectively reduced, so that the pulse-free compression of the fluid is realized.

Drawings

The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.

In the drawings, there is shown in the drawings,

FIG. 1 is a schematic view of a compression apparatus according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the volume chamber disk of the compression apparatus of fig. 1.

Fig. 3 is a schematic view of one direction of a guide plate of the compression apparatus of fig. 1.

Fig. 4 is a schematic view of another direction of the drainage tray of the compression device of fig. 1.

Fig. 5 is a schematic view of the wheel of the compression device of fig. 1.

Detailed Description

The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the invention. The dimensions shown in the figures are for clarity of description only and are not to be taken in a limiting sense.

Referring to fig. 1, a compressing apparatus 100 according to an embodiment of the present invention includes two compressing units 200 and a gear disc 300 for driving the two compressing units 200. Each compressing unit 200 includes an upper cover 210, a flow guiding plate 230, a volume chamber plate 250, and a lower cover 270. Preferably, the gear train disk 300 includes a gear train disposed between the two sets of compression units 200, and in other embodiments, the gear train disk 300 may be disposed on the same side of the two sets of compression units 200 to drive the compression units 200. It will be appreciated that the gear train is driven by a motor.

Referring to fig. 2, the volume cavity plate 250 includes a volume cavity 10, a compression plate 11 and three rotating wheels 13 substantially uniformly disposed around the compression plate are disposed in each volume cavity 10, each rotating wheel 13 is substantially uniformly distributed on an annular compression plate 15, and a fluid passage 17 is formed between the annular compression plate 15 and the compression plate 11. In this embodiment, each runner 13 has a notch 131, a protrusion 111 is disposed at a position of the compression plate 11 corresponding to the notch 131, and the notch 131 and the protrusion 111 cooperate to divide the fluid channel 17 into three substantially identical parts.

The gear set of the compressing device 100 drives the rotating wheel 13 and the compressing plate 11 to move in opposite directions, wherein the linear speed of the rotating wheel 13 and the compressing plate 11 is the same during the moving process, so that the rotating wheel 13 and the compressing plate 11 are in rolling friction contact, and a high-grade seal without friction is realized. Specifically, in this embodiment, the diameter of the compression piece 11 is three times the diameter of the runner 13, and during the movement, the compression piece 11 moves one circle and the runner 13 rotates three circles. In this embodiment, the outer edge of the protrusion 111 and the annular compression disc 15 are sealed without contact, and the runner 13 is circumscribed with the compression plate 11, so as to seal the flow passage. When the runner 13 and the compression plate 11 move in opposite directions, the distance between the protrusion 111 and the two runners 13 changes, so that positive and negative pressures are formed in the fluid channel 17 on both sides of the protrusion 111 to compress the fluid in the fluid channel 17.

The outer edge of the protrusion 111 and the annular compression disc 15 may be sealed without contact, for example, the outer edge of the protrusion 111 may have the same curvature as the inner edge of the annular compression disc 15, further, the outer edge of the protrusion 111 and the inner edge of the annular compression disc 15 may be coated with a hydrophobic layer or the protrusion 111 and the annular compression disc 15 may be made of a hydrophobic material.

In the present embodiment, along the rotation direction of the compression plate 11, the compression plate 11 is recessed into a notch 113 at the back of the protrusion 111 toward the center of the compression plate 11, and the notch 113 is used for conveying fluid.

In the present embodiment, the channels for fluid to flow in and out are exemplarily shown by utilizing the randomness of the fluid in the flow channel, and it is understood that other modes can be adopted in other embodiments. Referring to fig. 3 and 4, in the present embodiment, the compressing device 100 includes a fluid inlet 80 and a fluid outlet 90, and it is understood that the fluid inlet 80 and the fluid outlet 90 are respectively connected to the outside of the compressing device 100 to cooperate with other devices.

Fig. 3 shows a fluid inflow channel 50, the fluid inflow channel 50 is disposed on the guide plate 230, the fluid inflow channel 50 includes a plurality of diverging portions 51 communicated with the fluid channel 17 and a plurality of penetrating portions 53 communicated with the plurality of diverging portions 51, wherein an opening 511 is disposed on one of the diverging portions 51 for fluid to flow in. In this embodiment, as shown in fig. 4, the opening 511 is provided with a groove 513 extending to the outer edge of the compressing device 100 at the other side facing away from the fluid inflow channel 50 to communicate with the fluid inlet 80 for fluid inflow. Preferably, in the present embodiment, the diffusing portions 51 are respectively disposed adjacent to and on one side of the runner 13 in the rotation direction of the compression sheet 11. Specifically, when the runner 13 and the compression plate 11 move in opposite directions, after the protrusion 111 sequentially passes through the runner 13 and the diffuser 51 along the rotation direction of the compression plate 11, the space between the protrusion 111 and the following runner 13 is increased, and the fluid sequentially flows through the fluid inlet 80, the groove 513, and the opening 511 into the corresponding through fluid channel 17, or sequentially flows through the fluid inlet 80, the groove 513, the opening 511, the diffuser 51, the through part 53, and the diffuser 51 into the corresponding through fluid channel 17.

Referring also to fig. 4, fig. 4 shows a fluid outflow channel 70, the fluid outflow channel 70 is also provided on the flow guiding plate 230, and the fluid outflow channel 70 includes three flow grooves 71 communicating with the fluid channel 17 and a flow passage 73 communicating with the three flow grooves 71 and the fluid outlet 90. The flow channel 71 is arranged between the two runners 13. When the runner 13 and the compression plate 11 move in opposite directions, the projection 111 sequentially passes through the runner 13 and the diffuser 51 in the rotation direction of the compression plate 11, the recess 113 communicates with the flow channel 71, and the compressed fluid is sequentially discharged through the recess 113, the flow channel 71, the flow channel 73, and the fluid outlet 90.

Specifically, when the runner 13 and the compression plate 11 move in opposite directions, the space between the protrusion 111 and the following runner 13 becomes larger along the rotation direction of the compression plate 11, and the fluid flows into the corresponding through fluid channel 17 through the diffuser 51; the space between the projection 111 and the preceding runner 13 becomes smaller and the fluid flows out through the flow channel 71.

Referring to fig. 5, fig. 5 is a schematic view of the rotor 13 in the present embodiment, wherein the rotor 13 is provided with a drainage groove 133 around its rotation axis on a side facing the drainage plate 230. The drainage grooves 133 communicate with the diverging portion 51 of the fluid inflow channel 50, so that when the runner 13 and the compression plate 11 move in opposite directions, the space between the protrusion 111 and the preceding runner 13 becomes smaller, and after the fluid in the fluid channel 17 is compressed, a part of the fluid can communicate with the diverging portion 51 of the fluid inflow channel 50 via the drainage grooves 133, thereby effectively reducing the compression pulse of the fluid in the fluid channel 17.

In the present embodiment, the flow groove 71 has an arc shape with a central angle of approximately 60 degrees, and in the present embodiment, both ends of the flow groove 71 are arc-shaped, so that air can be smoothly discharged.

In the present embodiment, the central angle of each flow groove 71 is approximately 60 degrees, and the angle at which the fluid is effectively compressed and discharged in each compression unit 200 is 60 degrees by three, and 180 degrees. In this embodiment, the number of the compression units 200 is two, the flow grooves 71 of the upper and lower compression units 200 are uniformly installed in a staggered manner, and the angle at which the fluid is effectively compressed and discharged in each compression unit 200 is 180 degrees, so that the upper and lower compression units 200 can compress the fluid flowing into the compression apparatus 100 by 360 degrees. Further, since the flow path is divided into six 60-degree flow grooves 71 for compression, both ends of the flow grooves 71 are arc-shaped, and smooth 360-degree compression without pulse is realized.

Preferably, in this embodiment, the central angle of each flow groove 71 may be greater than 60 degrees, so that the flow grooves 71 in the upper and lower compression units 200 partially intersect in the axial direction, thereby effectively compensating for the compression of the flow grooves 71 having arc-shaped ends.

It is understood that in this embodiment, the fluid may be a gas or a liquid.

In this embodiment, the compression device 100 is assembled in multiple layers, but in other embodiments, the compression device 100 may be formed by integrally molding parts, for example, the lower cover 270 and the annular compression plate 15.

In this embodiment, the number of the runners of each compression unit 200 is three, and in other embodiments, the number of the runners may be one or more, and it is understood that when the number of the runners is one, the central angle of the corresponding flow channel 71 is at least 180 degrees, and when the number of the runners is multiple, the central angle of the corresponding flow channel 71 is at least 180 degrees divided by the number of the runners. The design of the three rotating wheels in the embodiment is better and has stronger stability.

In this embodiment, the outer edge of the protrusion 111 of the compression plate 11 and the annular compression disc 15 are sealed in a contactless manner, and the rotating wheel 13 is circumscribed with the compression plate 11, so that the sealing of the flow channel is realized, and no friction exists between the compression plate and the rotating wheel and between the compression disc 15 during compression, so that no noise exists, no lubrication is needed, and oil-free compression on fluid is realized. Meanwhile, the upper and lower groups of compression units 200 and the circulation grooves with arc-shaped ends are adopted to realize the stable compression of fluid at 360 degrees, and moreover, the discharge grooves 133 arranged on the rotating wheels 13 effectively reduce the compression pulse of the fluid in the fluid channel 17, thereby realizing the pulse-free compression of the fluid.

As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.