A compressor

Abstract

The technical solution of the present invention discloses a compressor, including a main cavity, an end cover and a sealing plate, a rotor is eccentrically installed in the sealing cavity, a compression space is formed between the compression cavity and the rotor, at least one arc-shaped blade is evenly installed in the circumferential direction of the edge of the rotor, and there is a gap between the arc-shaped blade and the inner wall of the sealing cavity when the arc-shaped blade is in the extreme position of the open state, and a guide structure is arranged at the position corresponding to each arc-shaped blade in the motion cavity, and the rotor controls the opening and closing of the arc-shaped blade through the guide structure during the rotation process. The present invention sets the rotor eccentrically in the main cavity, sets curved arc-shaped blades in the circumferential direction of the rotor, and installs a guide structure above the arc-shaped blade. The rotor rotates and drives the arc-shaped blades to circulate compressed air in the compression space through the guide structure, which improves the compression efficiency by at least 3 times compared with the traditional uniform compression space; the setting of the guide structure can effectively reduce or eliminate the vibration generated during the rotation of the rotor.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a compressor. Background Art

[0002] The conventional compressor structure is that blades are evenly arranged on the surface of the rotor, and the rotor and the stator are arranged concentrically. The structure is simple, and when compressing air, it can only achieve the function of uniformly compressing air. The output power of the compressor is low, and the rotor in the housing will make a large noise during high-speed rotation. The present invention proposes a compressor with a new structure, which can greatly improve the working efficiency of the compressor and reduce the working noise. Summary of the invention

[0003] The technical problem solved by the present invention is that the traditional compressor has a single structure, and the friction between the blades, the rotor and the outer cavity of the compressor is the only problem.

[0004] In order to solve the above-mentioned technical problems, the technical solution of the present invention provides a compressor, comprising a main cavity, an end cover detachable from the main cavity, and a sealing sheet arranged between the main cavity and the end cover, the sealing sheet divides the space between the main cavity and the end cover into a moving cavity and a sealing cavity, wherein a rotor is eccentrically installed in the sealing cavity, a compression space is formed between the compression cavity and the rotor, at least one arc-shaped blade is evenly installed in the circumferential direction of the edge of the rotor, and there is a gap between the arc-shaped blade and the inner wall of the sealing cavity when the arc-shaped blade is in the extreme position in the open state, and a guide structure is arranged at the position corresponding to each of the arc-shaped blades in the moving cavity, and the rotor controls the opening and closing of the arc-shaped blades through the guide structure during rotation.

[0005] Optionally, the inner wall contour shape of the sealing cavity matches the movement trajectory of the arc-shaped blade head.

[0006] Optionally, the arc-shaped blade is an arc-shaped plate-shaped structural member, and the inward concave direction of the arc-shaped blade is counterclockwise.

[0007] Optionally, the upper and lower ends of the arc-shaped blades are rotatably mounted to the rotor via bearings respectively, the upper end of the arc-shaped blade passes through the sealing sheet and is connected to a guide rod, the guide rod is movably mounted with a guide wheel, and the guide wheel is in rolling contact with a blade motion track mounted on the inner top of the end cover.

[0008] Optionally, the guide wheel may be installed to reciprocate with the guide rod in a horizontal direction.

[0009] Optionally, the shape of the blade motion track is an irregular ellipse.

[0010] Optionally, the arc-shaped blades and the guide rod are integrally formed.

[0011] Optionally, the sealing sheet is provided with a through hole of the same shape directly above the rotor.

[0012] Optionally, the horizontal plane where the bottom of the blade motion track is located is higher than the horizontal plane where the top of the guide rod is located.

[0013] Optionally, the upper and lower ends of the arc-shaped blades are rotatably mounted to the rotor via bearings respectively, the upper end of the arc-shaped blade passes through the sealing sheet and is connected to a guide rod, an adapter plate is movably mounted on the guide rod, a left guide wheel and a right guide wheel are mounted on the adapter plate, a blade movement track is provided on the inner top of the end cover, the left guide wheel and the right guide wheel clamp the blade movement track, and the blade movement track is in rolling contact with the left guide wheel and the right guide wheel.

[0014] The beneficial effects of the technical solution of the present invention are:

[0015] The present invention sets the rotor eccentrically in the main cavity, sets curved arc blades in the circumferential direction of the rotor, and installs a guide structure above the arc blades. The rotor rotates to drive the arc blades to circulate compressed air in the compression space through the guide structure, thereby improving the compression efficiency by at least 3 times compared with the traditional uniform compression space. The setting of the guide structure can effectively reduce or eliminate the vibration generated during the rotation of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of the compressor in Embodiment 1 of the present invention after removing the end cover and the sealing sheet;

[0017] Figure 2 This is a schematic diagram of the structure of a sealing sheet in Embodiment 1 of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure after the sealing sheet is installed in the main cavity in the first embodiment of the present invention;

[0019] Figure 4 Schematic diagram of the structure of the rotor in the first embodiment of the present invention;

[0020] Figure 5 for Figure 4 A cross-sectional view of

[0021] Figure 6 This is a schematic diagram of the structure of the arc-shaped blade in the first embodiment of the present invention;

[0022] Figure 7 It is a partial side cross-sectional view of the compressor in the first embodiment of the present invention;

[0023] Figure 8 for Figure 7Enlarged view of point A in the middle;

[0024] Fig. 9 for Figure 7 Enlarged view of point B in the middle;

[0025] Fig.10 It is a partial side sectional view of the compressor in the second embodiment of the present invention;

[0026] Fig.11 This is a schematic diagram of the structure of the sealing sheet in the third embodiment of the present invention;

[0027] Fig.12 This is a schematic diagram of the structure after the sealing sheet is installed in the main cavity in the third embodiment of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] Embodiment 1

[0033] See also Figure 1 , Figure 2 , Figure 3 and Figure 7 FIG. 1 shows a compressor of an embodiment, comprising a main cavity 1, an end cover 10 detachable from the main cavity 1, and a sealing sheet 7 arranged between the main cavity 1 and the end cover 10, wherein the sealing sheet 7 divides the space between the main cavity 1 and the end cover 10 into a moving cavity 11 and a sealing cavity 12, wherein a rotor 2 is eccentrically installed in the sealing cavity 12, and the rotor 2 is rotated by an output shaft 5 of an external motor extending into the main cavity 1, and a compression space 4 is formed between the compression cavity 12 and the rotor 2, and at least one arc-shaped blade 3 is evenly installed in the circumferential direction of the edge of the rotor 2, and a gap 13 (such as 13.3 mm) is formed between the arc-shaped blade 3 and the inner wall of the sealing cavity 1 when the arc-shaped blade 3 is in the extreme position of the open state. Fig. 9 As shown in FIG. 1 , a guide structure 19 is provided in the motion cavity 11 at a position corresponding to each arc-shaped blade 3 , and the rotor 2 controls the opening and closing of the arc-shaped blade 3 through the guide structure 19 during the rotation process.

[0034] In this embodiment, the inner wall contour of the sealing cavity 12 matches the motion trajectory of the head of the arc-shaped blade 3. Figure 1 As shown, the running track of the arc-shaped blade 3 relative to the end installed with the rotor 2 during the rotation process is the inner wall contour of the sealed cavity 12 in the main cavity 1. According to the specific operating conditions, the inner wall contour of the sealed cavity 12 will change differently, but the general contour is close to Figure 1 The irregular oval shape shown.

[0035] In this embodiment, the arc blade 3 is an arc plate-shaped structural member 31, and the concave direction of the arc blade 3 faces the counterclockwise direction. Figure 1 As shown, to be more specific, if the arc blade 3 rotates clockwise to compress the air, the concave direction of the arc blade 3 is to the right, that is, the arc top of the arc blade 3 is located on the right side, otherwise it is located on the left side.

[0036] In this embodiment, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the upper end 33 and the lower end 32 of the arc-shaped blade 3 are rotatably mounted to the rotor 2 via bearings (not shown). Figure 4 , Figure 5 and Figure 6As shown, the rotor 2 is provided with a countersunk hole 21 at the position where the arc-shaped blade 3 is installed, and a mounting shaft 22 is provided in the countersunk hole 21. The upper and lower ends 32 and 33 of the arc-shaped blade 3 are respectively installed on the mounting shaft 22 through bearings, so that the arc-shaped blade 3 can rotate relative to the rotor 2 through the bearings. The upper end 33 and the lower end 32 of the arc-shaped blade 3 are both cylindrical structures, and the upper end 33 is longer than the lower end 32. The guide structure 19 includes a guide rod 8 connected to the upper end 33 of the arc-shaped blade 3, the upper end 33 of the arc-shaped blade 3 is connected to the guide rod 8 through a sealing sheet 7, and a guide wheel 9 is movably installed at one end of the guide rod 8 away from the upper end 33, and the guide wheel 9 is in rolling contact with a blade motion track 6 installed on the inner top of the end cover 10 (the guide wheel 9 and the guide rod 8 can be installed by a slide rail or a spring structure, so that the guide wheel 9 can make a reciprocating sliding motion relative to the guide rod 8. More specifically, the guide wheel 9 has an axis inside, and the axis and the guide rod 8 are installed by a spring or other structure. There are many structures that can realize elastic reciprocating sliding, which will not be repeated here).

[0037] In this embodiment, the shape of the blade motion track 6 is an irregular ellipse (eg Figure 1 The dotted line in the middle shows an irregular ellipse. The shape of the blade motion track 6 can be designed according to the preset space of the sealed cavity 12, or the contour shape of the sealed cavity 12 can be set according to the shape of the blade motion track 6. Both can be set according to specific circumstances.

[0038] In this embodiment, the arc blade 3 and the guide rod 8 are integrally formed, but the installation process is complicated. The arc blade 3 and the guide rod 8 can also be processed separately, and when the upper end 33 of the arc blade 3 passes through the sealing sheet 7, the guide rod 8 is installed on the arc blade 3.

[0039] In this embodiment, Figure 2 and Figure 8 As shown, the sealing sheet 7 is provided with a through hole 71 of the same shape just above the rotor 2, so as to ensure that after the sealing sheet 7 is covered, there is good sealing between the rotor 2 and the through hole 71, thereby ensuring that the sealing sheet 7 can completely seal and isolate the main cavity 1 and the end cover 10. The main cavity 1 has a positioning boss 14 for facilitating positioning when installing the sealing sheet 7 and the end cover 10.

[0040] In this embodiment, the horizontal plane where the bottom of the blade motion track 6 is located is higher than the horizontal plane where the top of the guide rod 8 is located, ensuring that when the guide wheel 9 reciprocates on the surface of the guide rod 8, the blade motion track 6 only rolls in contact with the guide wheel 9 and does not interfere with the guide rod 8.

[0041] Embodiment 2

[0042] like Fig.10 As shown, the compressor structure of this embodiment is basically the same as that of the first embodiment. The upper end 33 and the lower end 32 of the arc-shaped blade 3 are rotatably mounted on the rotor 2 through bearings respectively. The upper end 33 of the arc-shaped blade 3 passes through the sealing sheet 7 and is connected to the guide rod 8.

[0043] The compressor structure in this embodiment is different from that in the first embodiment in that the guide rod 8 is movably mounted with an adapter plate 16, a steering bearing 15 is mounted at the bottom of the adapter plate 16, the steering bearing 15 is rotatably mounted with the guide rod 8, a left guide wheel 17 and a right guide wheel 18 are mounted on the adapter plate 16, a blade motion track 6 is arranged at the inner top of the end cover 10, the left guide wheel 17 and the right guide wheel 18 clamp the blade motion track 6, and the blade motion track 6 is in rolling contact with the left guide wheel 17 and the right guide wheel 18. As in the first embodiment where only the guide wheel 9 is mounted on the guide rod 8 and the guide wheel 9 is in rolling contact with the blade motion track 6, the left and right guide wheels 17 and 18 clamp the blade motion track 6 and are in relative rolling contact, and when the rotor 2 rotates, the opening and closing of the arc blade 3 is controlled by the relative movement between the guide structure 19 and the blade motion track 6.

[0044] Embodiment 3

[0045] like Fig.11 and Fig.12 As shown, the compressor structure of this embodiment is basically the same as that of the first or second embodiment, and the only difference is that the structure of the guide rod 8 of this embodiment can be set to have a fan blade structure (not shown, the principle of the fan blade can be easily understood by those skilled in the art, and is not shown here), so that the guide rod 8 can drive the wind flow downward during rotation, which can further increase the air intake. At the same time, the sealing sheet 7 is set to have a notch 73, so that during the working compression process of the compressor, the guide rod 8 rotates and drives the wind flow downward and passes through the notch 73 into the sealing chamber 12 for compression of the arc blade 3. It is worth noting that, Figure 1 As shown, in Example 1, Example 2 and Example 3, the air inlet is set on the end cover 10, and the air inlet passes through the end cover 10, so that air can directly enter from above the end cover 10 and be driven downward by the fan blade structure of the guide rod 8. The air outlet can be set on the side wall of the main cavity 1 and is located at the end point of the rotation position of the arc blade 3.

[0046] In addition, the blade motion track 6 can be set on the end surface of the main cavity 1. The specific setting structure can be set according to the specific situation and will not be repeated here.

[0047] In summary, the present invention sets the rotor eccentrically in the main cavity, sets curved arc blades in the circumferential direction of the rotor, and installs a guide structure above the arc blades. The rotor rotates through the guide structure to drive the arc blades to circulate compressed air in the compression space, which improves the compression efficiency by at least 3 times compared with the traditional uniform compression space; the setting of the guide structure can effectively reduce or eliminate the vibration generated during the rotation of the rotor. The rolling friction of the guide wheel of the guide structure replaces the friction between the blades and the compression chamber of the traditional compressor, and between the blade groove and the blade. The blades have no contact with the compression chamber, and no lubricating oil is required, which ensures the cleanliness of the compressed gas and can basically be maintenance-free, and can do without the lubrication system of conventional compressors.

[0048] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A compressor, comprising a main cavity, an end cover detachable from the main cavity, and a sealing sheet arranged between the main cavity and the end cover, wherein the sealing sheet divides the space between the main cavity and the end cover into a moving cavity and a sealing cavity, characterized in that: A rotor is eccentrically installed in the sealing cavity, a compression space is formed between the sealing cavity and the rotor, at least one arc-shaped blade is evenly installed in the circumferential direction of the edge of the rotor, and a gap is formed between the arc-shaped blade and the inner wall of the sealing cavity when the arc-shaped blade is in the extreme position in the open state. A guide structure is arranged at a position corresponding to each of the arc-shaped blades in the motion cavity, and the rotor controls the opening and closing of the arc-shaped blades through the guide structure during rotation. The contour shape of the inner wall of the sealing cavity matches the motion trajectory of the arc-shaped blade head. The upper and lower ends of the arc-shaped blades are rotatably installed with the rotor through bearings respectively, the upper end of the arc-shaped blade passes through the sealing sheet and is connected with a guide rod, and the guide rod is movably installed with a guide wheel, and the guide wheel is in rolling contact with the blade motion track installed on the inner top of the end cover. The rotor is provided with a countersink at the position where the arc-shaped blade is installed, and a mounting shaft is arranged in the countersink. The upper and lower ends of the arc-shaped blade are respectively installed with the mounting shaft through bearings, so that the arc-shaped blade can rotate relative to the rotor through the bearing.

2. The compressor according to claim 1, characterized in that The arc-shaped blade is an arc-shaped plate-shaped structural member, and the inward concave direction of the arc-shaped blade faces counterclockwise.

3. The compressor according to claim 1, characterized in that The guide wheel can be installed to reciprocate with the guide rod in a horizontal direction.

4. The compressor according to claim 1, characterized in that The shape of the blade motion track is an irregular ellipse.

5. The compressor according to claim 1, characterized in that The arc-shaped blades and the guide rod are integrally formed.

6. The compressor according to claim 1, characterized in that The sealing sheet is provided with a through hole of the same shape just above the rotor.

7. The compressor according to claim 1, characterized in that The horizontal plane where the bottom of the blade motion track is located is higher than the horizontal plane where the top of the guide rod is located.

8. The compressor according to claim 1, characterized in that The upper end and the lower end of the arc-shaped blade are rotatably mounted on the rotor via bearings respectively, the upper end of the arc-shaped blade passes through the sealing sheet and is connected to a guide rod, an adapter plate is movably mounted on the guide rod, a left guide wheel and a right guide wheel are mounted on the adapter plate, a blade motion track is arranged on the inner top of the end cover, the left guide wheel and the right guide wheel clamp the blade motion track, and the blade motion track is in rolling contact with both the left guide wheel and the right guide wheel.

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