CN200971862Y - Synchronous rotary compressor - Google Patents

Abstract

The synchronous rotary compression machine includes a fixed frame and an eccentric seat integrated with the fixed frame. A cylinder is arranged in the air cavity formed by the fixed frame and the eccentric seat. The rotor is also equipped with a slide plate that can be embedded in the cylinder. The cylinder is respectively arranged in the air cavity formed by the fixed frame and the eccentric seat through the frame bearing and the support bearing, and the central axis of the cylinder and the rotor is not on the same axis. When the drive shaft rotates, it drives the rotor to make a complete rotary motion, and the slide plate is embedded in the cylinder under the action of centrifugal force, which drives the cylinder to make a complete rotary motion in the same direction, and the time for them to complete a circle is exactly the same. The cylinder and the rotor are in synchronous rotary motion, completely rotating around their respective centers of rotation, the relative speed between them is very low, there is no unbalanced inertial force, and no intake valve is required, which reduces the loss of flow resistance, and the machine runs very smoothly Smooth, greatly reducing friction and wear, improving efficiency.

Description

Synchronous Rotary Compression Machinery

technical field

The utility model belongs to the field of compressors, in particular to a synchronous rotary compression machine.

Background technique

Currently widely used compressors include reciprocating compressors, rolling rotor compressors, vane compressors, and scroll compressors. Due to the inertial force that is difficult to balance, the reciprocating compressor has large vibration, low speed and large volume. In addition, there is a relatively high velocity of motion between the moving piston and the stationary cylinder, and the friction and wear are serious. The cylinders of the rolling rotor compressor and the sliding vane compressor are both static, and the meshing point with the inner surface of the rotor moves at a high relative speed during the movement, and there is also a large relative speed between the rotor and the slide plate. The sliding vane of the sliding vane compressor also rubs against the stationary cylinder under the action of centrifugal force. Due to the high relative motion speed, the friction and wear of these two compressors are very serious, resulting in greater wear and energy loss, so the service life and less efficient. For scroll compressors, there is also a relatively high relative speed between the stationary disk and the moving disk, and the process is complicated and the machining precision is high. The above-mentioned types of compressors all have a common problem, that is, severe friction and wear, large energy loss, large leakage, and low efficiency; or complex processing technology and high precision, resulting in high cost.

Contents of the invention

The purpose of the utility model is to provide a synchronous rotary compression machine which has no unbalanced inertial force, no intake valve, can reduce the loss of flow resistance, run smoothly, reduce friction and wear, and improve efficiency.

In order to achieve the above object, the technical solution adopted by the present invention is: comprising a fixed frame and an eccentric seat connected with the fixed frame, a cylinder is arranged in the air cavity formed by the fixed frame and the eccentric seat, and a cylinder is arranged in the cylinder. There is a rotor set on the drive shaft, and the rotor is also provided with a slide plate that can be embedded in the cylinder. It is characterized in that the cylinder is respectively arranged in the air cavity formed by the fixed frame and the eccentric seat through the frame bearing and the support bearing, and the cylinder Not on the same axis as the central axis of the rotor.

Another feature of the utility model is: the cylinder is provided with an exhaust hole, and the fixed frame is also provided with an exhaust valve communicating with the exhaust hole of the cylinder.

Because the cylinder and the rotor of the utility model are in synchronous rotary motion, the cylinder and the rotor completely rotate around their respective centers of rotation, there is no unbalanced inertial force, and no intake valve is required, which reduces the loss of flow resistance and the machine runs very smoothly. stable. In addition, the cylinder and the rotor move synchronously, and the relative speed between them is very low, which greatly reduces friction and wear and improves efficiency. Secondly, the novel synchronous rotary compressor is easy to process and easy to form mass production.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a working principle diagram of the utility model.

Detailed ways

The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, the utility model includes a cylinder 4 and a rotor 5 set in the cylinder on the drive shaft 1, and a slide plate 10 embedded in the cylinder 4 is also arranged on the rotor 5, and the cylinder 4 that can rotate with the rotor 5 passes through The frame bearing 7 and the bearing 2 fixed on the eccentric seat are installed on the fixed frame 6, and the fixed frame 6 is also provided with an exhaust valve 9 communicating with the exhaust hole 8 of the cylinder 4, and the cylinder 4 and the fixed frame 6 concentric, the rotor 5 is not on the same axis as the cylinder 4, it is installed on the eccentric seat 3 through the bearing 1 fixed on the eccentric seat 3 and the shaft end bearing 1. When the drive shaft 1 rotates, it drives the rotor 5 to make a complete rotary motion, and the slide plate 10 is embedded in the cylinder 4 under the action of centrifugal force, and drives the cylinder 4 to also perform a complete rotary motion in the same direction, and the time for them to turn around is exactly the same.

Referring to Fig. 2, the drive shaft 1 of the present utility model is completely concentric with the rotation center of the rotor 5. When the drive shaft 1 rotates, it drives the rotor 5 to make a complete rotary motion, and the slide plate 10 is embedded in the cylinder 4 under the action of centrifugal force. It drives cylinder 4 to also do the complete rotary motion in the same direction, and the time they have turned around is exactly the same. Because both the cylinder 4 and the rotor 5 rotate around their own centers of rotation, there is no unbalanced inertial force. When it rotates, the inner surface of the cylinder 4 is always tangent to the outer surface of the rotor at point A, and a crescent-shaped space is formed between them, which constitutes the working chamber of the compressor. However, due to the different radii of the rotor 5 and the cylinder 4, their contact surfaces are moving extremely slowly during rotation, and the relative speed is extremely low, which greatly reduces friction and wear. In this mechanism, the slide plate 10 divides the working chamber into two parts, that is, the suction chamber 11 and the exhaust chamber 12. The air inlet is located on the rotary cylinder 4, which is located on the left part of the slide plate 10. The machine is always in the process of turning. It communicates with the suction port that rotates synchronously, and the exhaust port is set on the right side of the slide plate 10, and is discharged from the exhaust hole 8 through the rotor 5. During the rotation process, the exhaust hole 8 is always connected with the exhaust pipe, and the air intake and exhaust are continuously completed. gas. When β=0, the intake starts and the exhaust ends; when β>0, the compression process starts, and the rotating suction port continues to suck; when β=90 degrees, the suction chamber and exhaust in the cylinder The air cavities are equal; when β=ψ, the exhaust starts, and the gas is discharged from the central cavity, and ψ is the exhaust angle. When β=2π, a working cycle is completed, and the suction cavity is filled with gas again at this time.

For a working volume of the utility model, the gas suction, compression and exhaust are completed within two weeks of the rotor 5, but since the suction and compression processes are carried out simultaneously in the working chambers on both sides of the slide plate 10, the complete machine It is still to complete one work cycle per revolution. In this way, not only the machine runs smoothly, but also the flow rate of the gas at the suction and exhaust ports is low, and the flow loss is greatly reduced, which is about half of that of the reciprocating compressor. The compressor with this structure directly inhales air through the rotating air inlet, without adding an air inlet valve, and there is no phenomenon of inlet heating, so the volumetric efficiency is high. In addition, there are few parts and no wearing parts, the volume is 50-60% smaller than the reciprocating compressor, the weight is about 60% lighter, and the indicating efficiency is 30-40% higher than that of the piston type.

The rotor 5 and the cylinder 4 of the compressor are composed of two cylinders, the relative movement speed between the two is extremely small, the friction and wear are greatly reduced, and the leakage of the working medium is also quite easy to solve. Because the mass of the slide plate 10 is very small and the distance of its motion is short, the reciprocating inertial force that only exists on the slide plate 10 is also very small, which can be completely ignored. The unbalanced rotational inertial force caused by the unevenness of the material can be completely solved structurally. Easy to fix. The other two rotating bodies are rotating around their respective rotation centers, so there is no unbalanced force, so the machine runs very smoothly, with little vibration and low noise. In addition, the surface geometry of the main parts is a cylinder, so the machining accuracy is easy to guarantee, it is convenient to use high-efficiency processing machine tools and organizational assembly lines for production, and it is also easy to assemble and overhaul. In particular, there is no eccentrically moving crankshaft, which can greatly increase production. cut costs.

Claims (2)

1, synchronous rotary compressor tool, comprise fixed frame (6) and the eccentric mounting (3) that is connected as a single entity with fixed frame (6), in the air cavity of fixed frame (6) and eccentric mounting (3) formation, be provided with cylinder (4), in this cylinder (4), be provided with the rotor (5) that is sleeved on the live axle (1), also be provided with the slide plate (10) that can embed in the cylinder (4) on the rotor (5), it is characterized in that: cylinder (4) is arranged in the air cavity of fixed frame (6) and eccentric mounting (3) formation by rack bearing (7) and block bearing (2) respectively, and the central shaft of cylinder (4) and rotor (5) is not on same axis.

2, synchronous rotary compressor tool according to claim 1 is characterized in that: offer exhaust port (8) on the said cylinder (4), also be provided with the outlet valve (9) that is connected with the exhaust port (8) of cylinder (4) on fixed frame (6).

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