A biasing shaft rotor air compressor

Abstract

The application discloses a bias shaft rotor air compressor, which comprises a rotating assembly, an annular cylinder, a bearing seat and a gas conveying assembly; the rotating assembly and the annular cylinder are coaxially and eccentrically installed on the bearing seat through an annular cylinder bearing; the rotating assembly comprises a rotating shaft, a rotor and a sealing connection assembly; the rotating shaft is biased to one side of the rotor through a bearing set; the rotor is linked with the annular cylinder through a linkage assembly; the linkage assembly divides the inner wall of the annular cylinder into a left chamber and a right chamber; the rotating shaft is provided with an air inlet hole; the sealing connection assembly is respectively provided with a conversion hole and a gas conveying hole; one end of the rotor located in the left chamber is provided with a gas supply hole; one end of the rotor located in the right chamber is provided with an air inlet hole; the air inlet hole is provided with a one-way valve communicated with the gas conveying assembly; the bias shaft rotor air compressor omits a crank mechanism, is convenient to manufacture and maintain, has a simple structure, a small size, converts the rotary motion of the rotor into compressed gas output as a gas power source, is stable and durable in operation, is quiet in operation and is suitable for a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technical field of pistons, in particular to an offset shaft rotor air compressor. Background Art

[0002] The existing reciprocating piston compressor adopts a crankshaft mechanism, which has a complex structure and a large volume, high manufacturing cost, and is inconvenient to maintain. The vibration during operation causes loud noise and high energy consumption, which is not in line with the development concept of green environmental protection. It is necessary to provide an offset shaft rotor air compressor with a simple structure, stable and long-lasting operation, quiet operation, and a wide range of applications. Summary of the Invention

[0003] The purpose of the present invention is to provide an offset shaft rotor air compressor, which omits the crankshaft mechanism, is convenient to manufacture and maintain, has a simple structure, high reliability, and a small size. It converts the rotational motion of the rotor into compressed gas output as a gas power source, has stable and long-lasting operation, runs quietly, and has a wide range of applications.

[0004] The present invention is achieved through the following technical solutions:

[0005] An offset shaft rotor pneumatic press comprises a rotating assembly, an annular cylinder, a bearing seat and an air supply assembly; the rotating assembly and the annular cylinder are coaxially eccentrically mounted on the bearing seat via an annular cylinder bearing; the rotating assembly comprises a rotating shaft, a rotor and a sealing connection assembly; the rotating shaft is offset to one side of the rotor via the bearing assembly; the rotating shaft is transmission-connected to the rotor via the sealing connection assembly; the rotor is linked to the annular cylinder via a linkage assembly; the air supply assembly is mounted on the end of the sealing connection assembly away from the rotating shaft; When the rotor is linked with the annular cylinder, the outer wall of the rotor is tightly attached to the inner wall of the annular cylinder to form a closed band; the linkage component divides the inner wall of the annular cylinder into a left chamber and a right chamber; the rotating shaft is a hollow shaft; an air inlet hole is provided on the rotating shaft; a conversion hole and an air delivery hole are respectively provided on the sealing connection component; an air supply hole is provided at one end of the rotor located in the left chamber; an air inlet hole is provided at one end of the rotor located in the right chamber; a one-way valve is provided in the air inlet hole; the output end of the one-way valve is connected to the air delivery component through the air delivery hole.

[0006] As a further improvement to the technical solution of the present invention, the linkage assembly includes a tongue-shaped scraper, a seal and a linkage spring; the rotor is located at one end of the right chamber and is provided with a tongue-shaped scraper straight groove; the linkage spring is arranged at the bottom of the tongue-shaped scraper straight groove in a compressed state; the seal is arranged on the inner side wall of the annular cylinder; one end of the tongue-shaped scraper is in contact with the linkage spring, and the other end is clamped on the seal.

[0007] As a further improvement of the technical solution of the present invention, the sealing connection assembly includes a left sealing connection part, a left sealing cover, a right sealing connection part, a right sealing cover and a connecting bolt; the right sealing connection part is integrally formed with the rotating shaft; the left sealing cover and the right sealing cover are respectively sealed and arranged on the left and right end surfaces of the rotor; the left sealing connection part is provided with an air supply channel; the left sealing connection part is connected with the air supply assembly through the air supply channel; the connecting bolt passes through the left sealing connection part, the left sealing cover and the right sealing cover in sequence and is fixed to the right sealing connection part.

[0008] As a further improvement of the technical solution of the present invention, the conversion hole is provided on the right sealing cover; the air supply hole is provided on the left sealing cover; and the air supply hole is connected to the air supply channel through a connecting air channel.

[0009] As a further improvement of the technical solution of the present invention, the gas delivery assembly includes a gas delivery nozzle and a circular key; a clamping portion is provided on the outer wall of the gas delivery duct; the gas delivery nozzle is sleeved on the outer wall of the gas delivery duct; one end of the gas delivery nozzle is fixed to the clamping portion by the circular key.

[0010] As a further improvement of the technical solution of the present invention, the tongue-shaped scraper includes a scraper rod and a scraper hinge; the sealing member is provided with a hinge hole groove; the scraper hinge is provided at one end of the scraper rod; the scraper rod is installed in the tongue-shaped scraper straight groove; the scraper hinge is installed in the hinge hole groove.

[0011] As a further improvement to the technical solution of the present invention, the bearing group includes a first bearing and a second bearing; the rotating shaft is offset to one side of the rotor through the first bearing and the second bearing.

[0012] As a further improvement to the technical solution of the present invention, the diameter of the inner wall of the annular cylinder is greater than the diameter of the outer wall of the rotor.

[0013] As a further improvement to the technical solution of the present invention, the left sealing cover and the right sealing cover are both made of heat-treated wear-resistant materials.

[0014] Beneficial effects of the present invention:

[0015] Compared with the traditional reciprocating piston mechanism, the present invention omits the crankshaft mechanism, which is convenient for manufacturing and maintenance; the present invention has a simple structure, small size, low noise, and converts the rotational motion of the rotor into compressed gas output as a gas power source, with stable and reliable operation and wide application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an offset shaft rotor air compressor according to an embodiment of the present invention;

[0017] Figure 2 This is one of the structural schematic diagrams of the rotor and the annular cylinder in the rotating state according to an embodiment of the present invention;

[0018] Figure 3 This is the second structural diagram of the rotor and the annular cylinder in the rotating state according to the embodiment of the present invention;

[0019] Figure 4 This is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic structural diagram of the left sealing connection portion of an embodiment of the present invention;

[0021] Figure 6 This is a structural diagram of the left sealing cover according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the assembly structure of the linkage assembly and the rotor according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic structural diagram of the right sealing cover according to an embodiment of the present invention;

[0024] Figure 9 This is a schematic structural diagram of the right sealing connection portion according to an embodiment of the present invention;

[0025] Figure 10 This is a front cross-sectional view of a bearing seat according to an embodiment of the present invention;

[0026] Figure 11 This is a side sectional view of a bearing seat according to an embodiment of the present invention;

[0027] Figure 12 This is a schematic diagram of the main parts of the sealing gap when the rotor and the annular cylinder rotate according to an embodiment of the present invention.

[0028] In the accompanying drawings: 1-rotating assembly; 2-annular cylinder; 3-bearing seat; 4-gas delivery assembly; 5-linkage assembly; 6-sealing belt; 7-conversion hole; 8-gas delivery hole; 9-one-way valve; 11-rotating shaft; 12-rotor; 13-sealing connection assembly; 21-left chamber; 22-right chamber; 31-annular cylinder bearing; 41-gas delivery nozzle; 42-round key; 51-tongue-shaped scraper; 52-seal; 53-linkage spring; 81-connecting air duct; 111-air inlet; 112-first bearing; 113-second bearing; 121-air supply hole; 122-air inlet; 123-tongue-shaped scraper straight groove; 131-left sealing connection part; 132-left sealing cover; 133-right sealing connection part; 134-right sealing cover; 135-connecting bolt; 136-gas delivery duct. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two elements, or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include at least one such feature. Furthermore, the technical solutions of various embodiments may be combined with each other, but only on the basis that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions contradicts or cannot be implemented, it shall be deemed that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this disclosure.

[0033] like Figures 1 to 12As shown, an offset shaft rotor pneumatic machine includes a rotating assembly 1, an annular cylinder 2, a bearing seat 3 and an air supply assembly 4; the rotating assembly 1 and the annular cylinder 2 are coaxially eccentrically mounted on the bearing seat 3 through an annular cylinder bearing 31; the rotating assembly 1 includes a rotating shaft 11, a rotor 12 and a sealing connection assembly 13; the rotating shaft 11 is offset to one side of the rotor 12 through the bearing assembly; the rotating shaft 11 is transmission-connected to the rotor 12 through the sealing connection assembly 13; the rotor 12 is linked to the annular cylinder 2 through a linkage assembly 5; the air supply assembly 4 is mounted on the end of the sealing connection assembly 13 away from the rotating shaft 11; the rotor 12 When linked with the annular cylinder 2, the outer wall of the rotor 12 clings to the inner wall of the annular cylinder 2 to form a closed band 6; the linkage assembly 5 divides the inner wall of the annular cylinder 2 into a left chamber 21 and a right chamber 22; the rotating shaft 11 is a hollow shaft; an air inlet hole 111 is provided on the rotating shaft 11; the sealing connection assembly 13 is respectively provided with a conversion hole 7 and an air delivery hole 8; an air supply hole 121 is provided at one end of the rotor 12 located in the left chamber 21; an air inlet hole 122 is provided at one end of the rotor 12 located in the right chamber 22; a one-way valve 9 is provided in the air inlet hole 122; the output end of the one-way valve 9 is connected to the air delivery assembly 4 through the air delivery hole 8. Compared with traditional reciprocating piston mechanisms, the present invention omits the crankshaft mechanism, which facilitates manufacturing and maintenance; the present invention has a simple structure, small size, and low noise, converts the rotational motion of the rotor 12 into compressed gas output as a power source, and operates stably, reliably, and is widely used.

[0034] Specifically, in this embodiment, the linkage assembly 5 includes a tongue-shaped scraper 51, a seal 52, and a linkage spring 53; a tongue-shaped scraper straight groove 123 is provided at one end of the rotor 12 located in the right chamber 22; the linkage spring 53 is arranged at the bottom of the tongue-shaped scraper straight groove 123 in a compressed state; the seal 52 is arranged on the inner wall of the annular cylinder 2; one end of the tongue-shaped scraper 51 abuts against the linkage spring 53, and the other end is clamped on the seal 52. It should be noted that the left and right arcs of the seal 52 coincide with the arcs of the inner wall of the annular cylinder 2, so that the seal 52 is tightly connected to the inner wall of the annular cylinder 2, further improving the sealing between the seal 52 and the annular cylinder 2. The end of the tongue-shaped scraper 51 connected to the seal 52 can slide along the inner wall of the annular cylinder 2.

[0035] It should be noted that the annular cylinder 2 requires smooth surfaces and no chamfers on its inner wall. The annular cylinder 2 can run concentrically and in different axial directions on the annular cylinder bearing 31. The annular cylinder 2 is integrally mounted on the rotor 12. Figure 1 and Figure 2As shown, the rotor 12 and the annular cylinder 2 are eccentrically arranged to form a sealing zone 6 at point A. The tongue-shaped scraper 51, the seal 52, and the inner wall of the annular cylinder 2 are compressed by the linkage spring 53 to form a sealing function. The tongue-shaped scraper 51 and the seal 52 are sealed and can swing slightly. The rotor 12 and the annular cylinder 2 can rotate in the same direction. When the rotor 12 and the annular cylinder 2 rotate, a sealing gap is formed. The main parts of the sealing gap are as follows Figure 12 Part B.

[0036] Specifically, in this embodiment, the sealing connection assembly 13 includes a left sealing connection part 131, a left sealing cover 132, a right sealing connection part 133, a right sealing cover 134 and a connecting bolt 135; the right sealing connection part 133 is integrally formed with the rotating shaft 11; the left sealing cover 132 and the right sealing cover 134 are respectively sealed and arranged on the left and right end surfaces of the rotor 12; the left sealing connection part 131 is provided with an air supply channel 136; the left sealing connection part 131 is connected to the air supply assembly 4 through the air supply channel 136; the connecting bolt 135 passes through the left sealing connection part 131, the left sealing cover 132 and the right sealing cover 134 in sequence and is fixed to the right sealing connection part 133.

[0037] Specifically, in this embodiment, the conversion hole 7 is provided on the right sealing cover 134; the air supply hole 8 is provided on the left sealing cover 132; and the air supply hole 8 is connected to the air supply channel 136 via the connecting air channel 81. It should be noted that the conversion hole 7 and the air supply hole 8 are used to realize the function of switching the air channel.

[0038] Specifically, in this embodiment, the gas delivery assembly 4 includes a gas delivery nozzle 41 and a circular key 42. A snap-fit ​​portion is provided on the outer wall of the gas delivery channel 136. The gas delivery nozzle 41 is sleeved onto the outer wall of the gas delivery channel 136. One end of the gas delivery nozzle 41 is secured to the snap-fit ​​portion via the circular key 42. It should be noted that the circular key 42 is used to secure the gas delivery nozzle 41 to prevent it from falling out. The gas delivery nozzle 41 is used to deliver high-pressure gas while maintaining a leak-proof seal. Furthermore, the gas delivery nozzle 41 is a gas delivery component that converts rotational motion into compressed gas output as a power source.

[0039] Specifically, in this embodiment, the tongue-shaped scraper 51 includes a scraper shaft and a scraper nut; the sealing member 52 is provided with a nut hole; the scraper nut is disposed at one end of the scraper shaft; the scraper shaft is mounted within the tongue-shaped scraper straight groove 123; and the scraper nut is mounted within the nut hole. It should be noted that the scraper nut and the nut hole are sealed to ensure the airtightness of the cylinder body.

[0040] Specifically, in this embodiment, the bearing assembly includes a first bearing 112 and a second bearing 113. The rotating shaft 11 is offset to one side of the rotor via the first and second bearings 112, 113. It should be noted that the provision of the first and second bearings 112, 113 allows the rotating shaft 11 to be offset to one side of the rotor 12. The offset rotating shaft 11 is hollow and ventilated.

[0041] Specifically, in this embodiment, the inner wall diameter of the annular cylinder 2 is larger than the sum of the outer wall diameter of the rotor 12 and the thickness of the seal 52. Therefore, the annular cylinder 2 and the rotor 12 can be eccentrically arranged coaxially. The annular cylinder 2 rotates with the rotor 12 through the linkage assembly 5, converting the rotational motion of the rotor 12 into compressed gas output as a power source, which is stable, reliable, and widely used.

[0042] Specifically, in this embodiment, the left sealing cover 132 and the right sealing cover 134 are both made of heat-treated wear-resistant materials.

[0043] The following describes the air compression working principle of the present invention using several typical rotation angles:

[0044] The gas compression principle of the present invention:

[0045] Intake process: Figures 1 to 3 As shown, the rotating shaft 11 drives the rotor 12 to rotate as a whole, and the annular cylinder 2 rotates along with the rotor 12 in the linkage assembly 5. Gas enters the interior of the rotating shaft 11 from the air inlet 111, turns 90° through the conversion hole 7, and enters the air supply hole 121 to complete the air supply. The rotor 12 transmits torque through the tongue-shaped scraper 51 to cause the annular cylinder 2 to follow. Due to the mutual sealing effect of the closing band 6, the tongue-shaped scraper 51, and the sealing member 52, at this time, after the sealing member 52 rotates 360° clockwise relative to the closing band 6 (A), the volume of the left chamber 21 of the annular cylinder 2 changes from small to large, thus completing the entire air intake process.

[0046] Gas compression process: As the seal 52 rotates 360° clockwise relative to the sealing band 6 (A), the gas in the right chamber 22 of the annular cylinder 2 is continuously compressed. The compressed gas enters through the gas inlet 122 and can only move to the left (towards the gas delivery component 4) under the action of the one-way valve 9. After the compressed gas is turned to the gas delivery channel 136 at the connecting gas channel 81, it is output outward through the gas delivery nozzle 41, completing the entire gas compression and delivery process.

[0047] When the rotor 12 rotates 360 degrees, it simultaneously takes in air once and compresses and discharges gas once.

[0048] The technical solutions provided by the embodiments of the present application are described in detail above, and the principles and implementation manners of the embodiments of the present application are described by applying specific examples. The above description of the embodiments is only used to help understand the principles of the embodiments of the present application; meanwhile, for those skilled in the art, the embodiments of the present application will have changes in specific implementation manners and application scopes, and the above description should not be understood as a limitation on the present application.

Claims

1. An offset shaft rotor air compressor, characterized in that: The cam is connected to the transmission gear of the present invention with a gear train connected to the transmission gear of the present invention, and the cam is connected to the transmission gear of the present invention with a gear train connected to the transmission gear of the present invention; the cam is connected to the transmission gear of the present invention with a gear train connected to the transmission gear of the present invention; The linkage assembly includes a tongue-shaped scraper, a seal, and a linkage spring; a tongue-shaped scraper straight groove is formed at one end of the rotor located in the right chamber; the linkage spring is arranged at the bottom of the tongue-shaped scraper straight groove in a compressed state; the seal is arranged on the inner side wall of the annular cylinder; one end of the tongue-shaped scraper abuts against the linkage spring, and the other end is clamped on the seal; The sealing connection assembly includes a left sealing connection part, a left sealing cover, a right sealing connection part, a right sealing cover, and a connecting bolt; the right sealing connection part is integrally formed with the rotating shaft; the left sealing cover and the right sealing cover are respectively sealed and arranged on the left and right end surfaces of the rotor; the left sealing connection part is provided with an air supply channel; the left sealing connection part is connected to the air supply assembly through the air supply channel; the connecting bolt passes through the left sealing connection part, the left sealing cover, and the right sealing cover in sequence and is fixed to the right sealing connection part; The conversion hole is arranged on the right sealing cover; the air delivery hole is arranged on the left sealing cover; the air delivery hole is connected to the air delivery channel through a connecting air channel.

2. The offset-axis rotor air compressor according to claim 1, characterized in that: The gas delivery assembly includes a gas delivery nozzle and a circular key; a clamping portion is provided on the outer wall of the gas delivery channel; the gas delivery nozzle is sleeved on the outer wall of the gas delivery channel; one end of the gas delivery nozzle is fixed to the clamping portion through the circular key.

3. The offset-axis rotor air compressor according to claim 1, characterized in that: The tongue-shaped scraper includes a scraper rod and a scraper hinge; the sealing member is provided with a hinge hole groove; the scraper hinge is provided at one end of the scraper rod; the scraper rod is installed in the tongue-shaped scraper straight groove; the scraper hinge is installed in the hinge hole groove.

4. The offset shaft rotor air compressor according to claim 1, characterized in that: The bearing group includes a first bearing and a second bearing; the rotating shaft is offset to one side of the rotor through the first bearing and the second bearing.

5. The offset shaft rotor air compressor according to claim 1, characterized in that: The inner wall diameter of the annular cylinder is larger than the outer wall diameter of the rotor.

6. The offset-axis rotor air compressor according to claim 1, characterized in that: The left sealing cover and the right sealing cover are both made of heat-treated wear-resistant materials.

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