CN117167244A - A kind of compressor - Google Patents

Abstract

The invention provides a compressor, which comprises a cylinder, a main piston, a first plugging wheel, a second plugging wheel and a transmission assembly, wherein the cylinder is of a Y-shaped structure formed by communicating a main chamber and two auxiliary chambers; the main piston is matched with the main cavity, and is arranged in the main cavity in a sliding way; one end of each auxiliary chamber, which is far away from the main chamber, is provided with an air inlet and an air outlet respectively; the first plugging wheel and the second plugging wheel are of columnar structures, the vertical sections of the columnar structures are symmetrically arranged in two sectors, the center points of the two sectors coincide, and the radian of each sector is ninety degrees; the first plugging wheel and the second plugging wheel are respectively and rotatably arranged in the two auxiliary chambers; the transmission assembly drives the first plugging wheel and the second plugging wheel to enable the movable port to be in a plugging or opening state respectively according to the movement of the main piston. The invention solves the noise generated by beating when the valve bank exhausts or inhales, and reduces the noise when the compressor works.

Description

a compressor

Technical field

The present invention relates to the technical field of air compression, and in particular to a compressor.

Background technique

The compressor is a driven fluid machine that elevates low-temperature, low-pressure gas into high-temperature, high-pressure gas. It is the heart of the refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. In the existing compressor structure, the valve group consists of a suction reed, a valve plate, an exhaust reed, a cylinder head gasket, a suction muffler and a cylinder head. Through the reciprocating motion of the piston, the crankcase cylinder hole is The pressure changes, causing a pressure difference between the pressure in the cylinder bore of the crankcase and the pressure in the cylinder head. The pressure difference causes the suction reed and exhaust reed to elastically deform, causing the cylinder to exhaust or inhale. However, when the reed is elastically deformed, it will produce a slap sound with the cylinder head gasket, which is mainly reflected in the frequency range of 2000-3000Hz, causing the compressor to produce a harsh noise during operation, which affects people's lives.

Contents of the invention

In view of the deficiencies in the prior art, the present invention provides a compressor, which solves the problem in the prior art that the compressor has a large valve group noise during the suction or exhaust process.

According to an embodiment of the present invention, a compressor includes a cylinder, a main piston, a first blocking wheel, a second blocking wheel and a transmission assembly. The cylinder is composed of a main chamber and two auxiliary chambers communicating with each other. Y-shaped structure; the main piston is adapted to the main chamber, and the main piston is slidably arranged in the main chamber; the two auxiliary chambers are respectively provided with an air inlet and an air outlet at one end away from the main chamber; the The first blocking wheel and the second blocking wheel are columnar structures. The vertical cross-section of the columnar structure is symmetrically arranged in two sector shapes. The center points of the two sector shapes coincide with each other, and the arc of the sector is ninety degrees; the first blocking wheel The second blocking wheel is rotated and installed in the two auxiliary chambers respectively. The auxiliary chambers are respectively provided with movable ports of adapted sizes at positions corresponding to the first blocking wheel and the second blocking wheel; the transmission assembly According to the movement of the main piston, the first blocking wheel and the second blocking wheel are driven to make the movable port in a blocking or open state respectively.

The technical principle of the present invention is: the main piston controls the rotation of the first blocking wheel and the second blocking wheel, and the angles between the first blocking wheel, the second blocking wheel and the movable port are different. When the main piston completes the single During the stroke in the direction, the first blocking wheel and the second blocking wheel rotate exactly 45°, and the first blocking wheel and the second blocking wheel rotate in cycles, and the movable port is in a closed or open state respectively.

Preferably, the transmission assembly includes an auxiliary piston, an inner connecting rod and a connecting unit, the main chamber is provided with a driven chamber at one end close to the auxiliary chamber, and the auxiliary piston is slidably arranged inside the driven chamber, The size of the auxiliary piston and the driven chamber are adapted: one end of the inner connecting rod is connected to the main piston, and the other end of the inner connecting rod is connected to the auxiliary piston; the connection unit controls the first blocking wheel, The second blocking wheel rotates.

Preferably, the connection unit includes a first transmission rod, a second transmission rod and a third transmission rod. The first transmission rod is composed of a U-shaped rod and straight sections respectively provided at both ends of the U-shaped rod. The U-shaped opening The direction is perpendicular to the straight body section, the first transmission rod is arranged in the middle of the two auxiliary chambers, the axis of the first transmission rod is parallel to the axis of the first blocking wheel or the second blocking wheel; the second One end of the transmission rod is rotatably connected to the auxiliary piston, the other end of the second transmission rod is rotatably connected to the middle part of the U-shaped rod, and the opening directions of the second transmission rod and the U-shaped rod are parallel; the third transmission rod and the first The transmission rod is vertical, and the middle part of the third transmission rod and the end of the first transmission rod are driven by worm gears. The two ends of the third transmission rod are respectively connected with the first blocking wheel and the second blocking wheel extending to the outside of the auxiliary chamber. The end adopts bevel gear transmission.

Preferably, the main chamber and the auxiliary chamber are coaxial; both ends of the inner connecting rod are fixedly connected to the auxiliary piston and the main piston respectively.

Preferably, the third transmission rod is provided at both ends of the first blocking wheel and the second blocking wheel.

Preferably, the movable port includes a partition plate and a square port provided on the partition plate, and the square port can sealingly cooperate with the first blocking wheel and the second blocking wheel.

Preferably, the inner wall of the movable port is provided with a sealing strip.

Preferably, the first sealing wheel and the second sealing wheel are provided with sealing layers on their sides.

Compared with the existing technology, the present invention has the following beneficial effects: when the main piston makes piston movement in the main chamber, it continuously performs work on the gas. When the main piston moves to the end away from the auxiliary chamber, the main chamber starts to inhale. The transmission assembly connected to the main piston drives the first blocking wheel and the second blocking wheel to rotate simultaneously. The two movable ports of the auxiliary chamber are blocked or opened by the first blocking wheel and the second blocking wheel respectively, corresponding to the inlet. The movable port of the air port is in an open state, and the corresponding air outlet is in a closed state. Then when the main piston moves to the end close to the auxiliary chamber, exhaust begins; the first blocking wheel and the second movable port of the two movable ports The blocking wheel rotates to the opposite angle, so that the movable port corresponding to the air inlet is in a closed state, while the corresponding exhaust port is in an open state. When the two movable ports are switched to the closed or starting state, the first blocking wheel And the second blocking wheel does not slap with the auxiliary chamber, thereby reducing the noise.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention.

Figure 2 is a schematic diagram of a connection unit according to an embodiment of the present invention.

Figure 3 is a schematic diagram of a partition according to an embodiment of the present invention.

Figure 4 is a schematic diagram of the first blocking wheel and the second blocking wheel according to the embodiment of the present invention.

In the above drawings: 1. Main chamber; 2. Auxiliary chamber; 3. Motor; 4. Connecting rod; 5. Main piston; 6. Inner connecting rod; 7. Auxiliary piston; 8. Second transmission rod; 9 , driven chamber; 10. partition; 11. first blocking wheel; 12. second blocking wheel; 13. air inlet; 14. air outlet; 15. first transmission rod; 16. third transmission Rod; 17. First fixing piece; 18. Second fixing piece; 19. First bevel gear; 20. Second bevel gear; 21. Sealing layer.

Detailed ways

The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and examples.

As shown in Figures 1 and 2, the embodiment of the present invention proposes a compressor, including a cylinder, a main piston 5, a first blocking wheel 11, a second blocking wheel 12 and a transmission assembly. The cylinder is composed of a main Chamber 1 and two auxiliary chambers 2 are connected to form a Y-shaped structure. The cylinder is made of aluminum alloy die-casting. The main chamber 1 is a cylinder, and the cross-section of the two auxiliary chambers 2 is a square structure. It is located close to the main chamber 1. Then tilt closer to each other. The main piston 5 is adapted to the main chamber 1. The main piston 5 is slidably arranged in the main chamber 1. The main piston 5 is covered with a rubber sealing ring. The main chamber 1 is fixedly provided with a motor 3 at one end away from the auxiliary chamber 2. The output shaft of the motor 3 is fixedly connected to a crankshaft. One end of the main piston 5 is rotatably connected to a connecting rod 4, and the other end of the connecting rod 4 is rotatably connected to the crankshaft. , thereby causing the main piston 5 to slide in the main chamber 1. The ends of the two auxiliary chambers 2 away from the main chamber 1 are respectively provided with an air inlet 13 and an air outlet 14. The air inlet 13 and the air outlet 14 are respectively connected to metal conduits. The metal conduit performs the heat energy replacement step. The first blocking wheel 11 and the second blocking wheel 12 are columnar structures. The vertical cross-sections of the columnar structures are symmetrically arranged in two fan shapes. The center points of the two fan shapes coincide with each other, and the arc of the fan shapes is ninety degrees. The two fan shapes are The circumscribed circle is the same circle. The first blocking wheel 11 and the second blocking wheel 12 are respectively rotatably arranged in the two auxiliary chambers 2. The axes of the first blocking wheel 11 and the second blocking wheel 12 and the axis of the auxiliary chamber 2 The axis is vertical, and the two ends of the first blocking wheel 11 and the second blocking wheel 12 are respectively rotatably connected to the side walls of the auxiliary chamber 2. The auxiliary chamber 2 corresponds to the first blocking wheel 11 and the second blocking wheel 12. The positions of the movable openings are respectively provided with adapted sizes. The projection of the movable port on the horizontal plane is square. The square shape is consistent with the projection on the horizontal plane when the axes of the first blocking wheel 11 and the second blocking wheel 12 are in a horizontal state. The transmission assembly drives the first blocking wheel 11 and the second blocking wheel 12 according to the movement of the main piston 5 so that the movable port is in a blocking or open state respectively. The line connecting the midpoints of the arcuate sides on both sides of the first blocking wheel 11 and the arcuate sides of the second blocking wheel 12 are always 90 degrees relative to each other to avoid two movable openings. Either closed or open at the same time.

As shown in Figure 1, preferably, the transmission assembly includes an auxiliary piston 7, an inner connecting rod 6 and a connecting unit. The main chamber 1 is provided with a driven chamber 9 at one end close to the auxiliary chamber 2. The driven chamber 9 The inner cavity of the chamber 9 is cylindrical, and the inner diameter of the driven chamber 9 is smaller than the main chamber 1. The driven chamber 9 is arranged between the two auxiliary chambers 2. The smaller the cross-sectional area of the driven chamber 9, the smaller the inner diameter of the driven chamber 9. The greater the gas compressed by the main piston 5 each time. The auxiliary piston 7 is slidably arranged inside the driven chamber 9. The auxiliary piston 7 and the driven chamber 9 are adapted in size. The auxiliary piston 7 is provided with a sealing ring. One end of the inner connecting rod 6 is connected to the main piston 5, and the other end of the inner connecting rod 6 is connected to the auxiliary piston 7, so that the strokes of the main piston 5 and the auxiliary piston 7 are synchronized, and the problem of air tightness between the main piston 5 and the auxiliary piston 7 is avoided. The auxiliary piston 7 is asynchronous. The connection unit controls the rotation of the first blocking wheel 11 and the second blocking wheel 12 through the movement of the auxiliary piston 7 .

As shown in Figure 2, preferably, the connection unit includes a first transmission rod 15, a second transmission rod 8 and a third transmission rod 16. The first transmission rod 15 is composed of a U-shaped rod and a U-shaped rod respectively arranged on the U-shaped rod. It consists of straight sections at both ends. The U-shaped opening direction is perpendicular to the straight section. The first transmission rod 15 is arranged in the middle of the two auxiliary chambers 2. The axis of the first transmission rod 15 is aligned with the first blocking wheel 11. Or the axis of the second blocking wheel 12 is parallel, and the two ends of the first transmission rod 15 are respectively connected with first fixing parts 17. The first fixing part 17 and the first transmission rod 15 are rotationally connected, and the first transmission rod 15 is in the first Limit sleeves are provided at both ends of the fixing part 17 to prevent the first transmission rod 15 and the first fixing part 17 from moving axially. The other end of the first fixing member 17 away from the first transmission rod 15 is fixedly connected to the outer wall of the cylinder, so that the position of the first transmission rod 15 relative to the cylinder remains unchanged. One end of the second transmission rod 8 and the auxiliary piston 7 are connected through rotation. The rotation connection position is located on the side of the auxiliary piston 7 away from the main chamber 1, and the movement trajectory of the first transmission rod 15 is consistent with the driven chamber. 9. Set sufficient intervals between them to avoid motion interference. The other end of the second transmission rod 8 is rotationally connected to the middle part of the U-shaped rod. The opening directions of the second transmission rod 8 and the U-shaped rod are parallel, so that the auxiliary piston 7 drives the first transmission rod when the driven chamber 9 moves. 15 spins. The third transmission rod 16 is perpendicular to the first transmission rod 15. Second fixing parts 18 are provided at both ends of the third transmission rod 16. The second fixing part 18 and the third transmission rod 16 are rotationally connected. The third transmission rod 16 is at Limit sleeves are provided at both ends of the second fixing part 18 to prevent the third transmission rod 16 and the second fixing part 18 from moving axially. One end of the second fixing member 18 away from the third transmission rod 16 is fixedly connected to the cylinder, so that the third transmission rod 16 is supported and fixed. The middle part of the third transmission rod 16 and the end part of the first transmission rod 15 are driven by a worm gear. The end part of the first transmission rod 15 is provided with a worm gear, and the middle part of the third transmission rod 16 is provided with a worm gear. The two ends of the third transmission rod 16 adopt bevel gear transmission with the ends of the first blocking wheel 11 and the second blocking wheel 12 extending to the outside of the auxiliary chamber 2 respectively. The two ends of the third transmission rod 16 are respectively provided with The first bevel gear 19, the two ends of the first blocking wheel 11 and the second blocking wheel 12 extend to the outside of the auxiliary chamber 2, and the two ends of the first blocking wheel 11 and the second blocking wheel 12 are respectively provided with The second bevel gear 20, the first bevel gear 19 and the second bevel gear 20 mesh. When the main piston 5 completes the one-way formation in the main chamber 1, the first blocking wheel 11 and the second blocking wheel 12 make the corresponding movable port in a closed or open state.

As shown in Figure 1, preferably, the main chamber 1 and the driven chamber 9 are coaxial, and the two ends of the inner connecting rod 6 are fixedly connected to the auxiliary piston 7 and the main piston 5 respectively. This is to ensure that when the main piston 5 is inhaling or exhausting, the rotation of the first blocking wheel 11 and the second blocking wheel 12 remains stable through mechanical connection, or remains synchronized with the main piston 5 .

As shown in Figure 2, preferably, the third transmission rod 16 is provided at both ends of the first blocking wheel 11 and the second blocking wheel 12, so as to avoid the interference between the first blocking wheel 11 and the second blocking wheel 12. When one end of the transmission is driven, the force will be uneven, so as to improve the stability of the structure of the present invention.

As shown in Figures 1, 2, 3, and 4, the movable port includes a partition 10 and a square port provided on the partition 10. The square port can be connected with the first blocking wheel 11 and the second blocking wheel 12. Sealing fit. The first blocking wheel 11 and the second blocking wheel 12 have a certain thickness. The two opposite surfaces in the square mouth are flat, and the distance is consistent with the first blocking wheel 11 and the second blocking wheel 12. The other two The two opposite surfaces are arc-shaped, and the arc is adapted to the rotation trajectories of the first blocking wheel 11 and the second blocking wheel 12 . When the first blocking wheel 11 and the second blocking wheel 12 rotate to a certain angle, the first blocking wheel 11 and the second blocking wheel 12 can have a better sealing effect with the partition 10 to avoid affecting the work of the cylinder. efficiency.

Preferably, the inner wall of the movable port is provided with a sealing strip, and the partition plate 10 is provided with sufficient thickness to meet the installation of the sealing strip to avoid air leakage when the first sealing wheel 11 and the second sealing wheel 12 seal the square port. Case.

As shown in FIG. 4 , preferably, the first sealing wheel 11 and the second sealing wheel 12 are provided with a sealing layer 21 on their sides. The first blocking wheel 11 and the second blocking wheel 12 rotate, and when the movable ports on both sides are opened or closed and switched to each other, the sealing layer 21 will seal the air inlet at the same time at the moment of switching, preventing the air inlet 13 from appearing. Backflow situation.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified. Modifications or equivalent substitutions without departing from the spirit and scope of the technical solution of the present invention shall be included in the scope of the claims of the present invention.

Claims (8)

1. A compressor, characterized in that it includes a cylinder, a main piston (5), a first blocking wheel (11), a second blocking wheel (12) and a transmission assembly. The cylinder is composed of a main chamber. (1) is a Y-shaped structure that communicates with the two auxiliary chambers (2); the main piston (5) is adapted to the main chamber (1), and the main piston (5) is slidably arranged in the main chamber (1) ; The ends of the two auxiliary chambers (2) away from the main chamber (1) are respectively provided with an air inlet (13) and an air outlet (14); the first blocking wheel (11), the second The blocking wheel (12) is a columnar structure. The vertical section of the columnar structure is symmetrically arranged in two sector shapes. The center points of the two sector shapes coincide with each other, and the arc of the sector is ninety degrees; the first blocking wheel (11), The two blocking wheels (12) are respectively rotatably arranged in the two auxiliary chambers (2), and the auxiliary chambers (2) are at positions corresponding to the first blocking wheel (11) and the second blocking wheel (12). Movable ports with adapted sizes are provided respectively; the transmission assembly drives the first blocking wheel (11) and the second blocking wheel (12) according to the movement of the main piston (5) so that the movable ports are blocked or opened respectively. state. 2. A compressor according to claim 1, characterized in that: the transmission assembly includes an auxiliary piston (7), an inner connecting rod (6) and a connecting unit, and the main chamber (1) is close to the auxiliary piston (7). A driven chamber (9) is provided at one end of the chamber (2), and the auxiliary piston (7) is slidably arranged inside the driven chamber (9). The dimensions of the auxiliary piston (7) and the driven chamber (9) are Adaptation; one end of the inner connecting rod (6) is connected to the main piston (5), and the other end of the inner connecting rod (6) is connected to the auxiliary piston (7); the connection unit passes through the movement of the auxiliary piston (7) Control the rotation of the first blocking wheel (11) and the second blocking wheel (12). 3. A compressor according to claim 2, characterized in that: the connection unit includes a first transmission rod (15), a second transmission rod (8) and a third transmission rod (16), and the third transmission rod (16) A transmission rod (15) is composed of a U-shaped rod and straight sections respectively arranged at both ends of the U-shaped rod. The opening direction of the U-shape is perpendicular to the straight section. The first transmission rod (15) is arranged in the two auxiliary cavities. In the middle of the chamber (2), the axis of the first transmission rod (15) is parallel to the axis of the first blocking wheel (11) or the second blocking wheel (12); one end of the second transmission rod (8) and The auxiliary piston (7) is rotationally connected, the other end of the second transmission rod (8) is rotationally connected to the middle part of the U-shaped rod, and the second transmission rod (8) is parallel to the opening direction of the U-shaped rod; the third transmission rod The rod (16) is perpendicular to the first transmission rod (15). The middle part of the third transmission rod (16) and the end of the first transmission rod (15) adopt worm gear transmission. The two ends of the third transmission rod (16) are respectively The ends of the first blocking wheel (11) and the second blocking wheel (12) extending to the outside of the auxiliary chamber (2) are driven by bevel gears. 4. A compressor according to claim 3, characterized in that: the main chamber (1) and the driven chamber (9) are coaxial; the two ends of the inner connecting rod (6) are respectively The auxiliary piston (7) and the main piston (5) are fixedly connected. 5. A compressor according to claim 4, characterized in that the third transmission rod (16) is provided at both ends of the first blocking wheel (11) and the second blocking wheel (12). 6. A compressor according to claim 5, characterized in that: the movable port includes a partition (10) and a square port arranged on the partition (10), and the square port is connected to the first blocking The wheel (11) and the second blocking wheel (12) can be sealed and matched. 7. A compressor according to claim 6, characterized in that: the inner wall of the square port is provided with a sealing strip. 8. A compressor according to claim 7, characterized in that: a sealing layer (21) is provided on the side of the first blocking wheel (11) and the second blocking wheel (12).