阅读说明：本技术 一种旋转式压缩机 (Rotary compressor ) 是由 雒应学 于 2019-09-02 设计创作，主要内容包括：本发明公开了一种旋转式压缩机,其通过定子同时驱动第一转子和第二转子运动,从而带动第一曲轴和第二曲轴旋转,实现对称设置两个旋转式压缩机构部,从而实现旋转式压缩机制冷功率翻倍的有益效果。此发明用于压缩机领域。(The invention discloses a rotary compressor, which drives a first rotor and a second rotor to move simultaneously through a stator so as to drive a first crankshaft and a second crankshaft to rotate, realizes that two rotary compression mechanism parts are symmetrically arranged, and further realizes the beneficial effect of doubling the refrigeration power of the rotary compressor. The invention is used in the field of compressors.)

1. A rotary compressor, characterized in that: comprises that

The motor part (10), the motor part (10) comprises a stator (11) and a rotor (12) installed in the stator (11), the rotor (12) comprises a first rotor (121) and a second rotor (122), and the first rotor (121) and the second rotor (122) are installed on two sides of the stator (11);

a crankshaft (20) including a first crankshaft (21) and a second crankshaft (22), the first crankshaft (21) having one end mounted in a first rotor (121) and the second crankshaft (22) having one end mounted in a second rotor (122);

the two rotary compression mechanism parts (30) are symmetrically arranged on the two first crankshafts (21) and the two second crankshafts (22), each rotary compression mechanism part (30) comprises an upper flange (31), a lower flange (32), a cylinder (33), a roller (34) and an air suction port (35), and the cylinder (33) is arranged between the upper flange (31) and the lower flange (32);

the motor part (10), the crankshaft (20) and the rotary compression mechanism part (30) are all arranged in the shell (40).

2. The rotary compressor of claim 1, wherein: the first crankshaft (21) and the second crankshaft (22) respectively comprise a main shaft and a secondary shaft, and the tail parts of the main shafts of the first crankshaft (21) and the second crankshaft (22) are assembled and matched to be fixed.

3. The rotary compressor of claim 2, wherein: the tail parts of the main shafts of the first crankshaft (21) and the second crankshaft (22) are designed into a concave-convex groove matching structure.

4. The rotary compressor of claim 3, wherein: the tail part of the main shaft of the first crankshaft (21) is provided with a convex groove, and the tail part of the main shaft of the second crankshaft (22) is provided with a groove matched with the convex groove of the first crankshaft (21).

5. The rotary compressor of claim 2, wherein: at least one eccentric shaft (23) is symmetrically arranged between the main shaft and the auxiliary shaft of the first crankshaft (21) and the second crankshaft (22), and a cylinder (33) is mounted on each eccentric shaft (23).

6. The rotary compressor of claim 5, wherein: the eccentric shafts (23) of the first crankshaft (21) and the second crankshaft (22) are arranged uniformly over 360 degrees.

7. The rotary compressor of claim 2, wherein: the auxiliary shaft tail parts of the first crankshaft (21) and the second crankshaft (22) are respectively designed with a tail groove (24) which can be used for adjusting assembly.

8. The rotary compressor of claim 1, wherein: and exhaust ports (41) are arranged on two sides of the shell (40).

Technical Field

The invention relates to the technical field of compressors, in particular to a rotary compressor.

Background

The existing rotary compressor drives a crankshaft to move by a stator/rotor according to a motor principle, and the crankshaft is linked with a roller to compress a refrigerant in a compression cavity formed by an end cover and a cylinder to form high-pressure gas which is then discharged into a compressor shell through an exhaust valve.

As shown in attached figure 1, the arrow is a schematic diagram of the flowing direction of the refrigerant after forming high-pressure gas, the compressor is a double-cylinder compressor and comprises a shell 1, and an external discharge area, a motor area and a compression area which are sequentially arranged in the shell from top to bottom, a compressor motor stator 2 in the motor area drives a compressor motor rotor 3 to rotate, the compressor motor rotor 3 drives a crankshaft 4 to rotate, and the crankshaft 4 is linked with a roller to compress the refrigerant in a compression cavity 5 formed by an end cover and a cylinder to form high-pressure gas and then is discharged into the compressor shell 1 through an exhaust valve 6.

The rotary refrigeration compressor shown in the attached figure 1 is a structure that a stator drives a rotor, and simultaneously, a single-cylinder compressor, a double-cylinder compressor or a three-cylinder compressor is correspondingly designed according to requirements.

Disclosure of Invention

The invention aims to provide a rotary compressor with double refrigerating power.

The technical scheme adopted by the invention is as follows:

a rotary compressor comprises a motor part, a stator and a rotor, wherein the motor part comprises the stator and the rotor arranged in the stator, the rotor comprises a first rotor and a second rotor, and the first rotor and the second rotor are arranged on two sides of the stator; the crankshaft comprises a first crankshaft and a second crankshaft, one end of the first crankshaft is installed in the first rotor, and one end of the second crankshaft is installed in the second rotor; the two rotary compression mechanism parts are symmetrically arranged on two first crankshafts and two second crankshafts, each rotary compression mechanism part comprises an upper flange, a lower flange, a cylinder, a roller and an air suction port, and the cylinder is arranged between the upper flange and the lower flange; the motor part, the crankshaft and the rotary compression mechanism part are all arranged in the shell.

As a further improvement of the technical solution of the present invention, the first crankshaft and the second crankshaft each include a main shaft and a counter shaft, and the tails of the main shafts of the first crankshaft and the second crankshaft are assembled and fixed.

Further as an improvement of the technical scheme of the invention, the tail parts of the main shafts of the first crankshaft and the second crankshaft are designed into a concave-convex groove matching structure.

As a further improvement of the technical scheme of the present invention, a tongue is designed at the tail of the main shaft of the first crankshaft, and a groove matched with the tongue of the first crankshaft is designed at the tail of the main shaft of the second crankshaft.

As a further improvement of the technical scheme of the invention, at least one eccentric shaft is symmetrically arranged between the main shaft and the auxiliary shaft of the first crankshaft and the second crankshaft, and each eccentric shaft is provided with a cylinder.

Further as an improvement of the technical solution of the present invention, the eccentric shafts of the first crankshaft and the second crankshaft are uniformly arranged at 360 °.

As a further improvement of the technical solution of the present invention, the tail portions of the countershafts of the first crankshaft and the second crankshaft are both designed with tail grooves for adjusting assembly.

Further as an improvement of the technical scheme of the invention, both sides of the shell are provided with exhaust ports.

The invention has the beneficial effects that: this rotary compressor, it passes through the first rotor of stator simultaneous drive and the motion of second rotor to drive first bent axle and the rotation of second bent axle, realize the symmetry and set up two rotation type compression mechanism portions, thereby realize the beneficial effect that rotary compressor refrigeration power doubled.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a prior art schematic;

FIG. 2 is an overall structure view of a rotary compressor according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a crankshaft according to an embodiment of the present invention;

FIG. 4 is a schematic view of the distribution of the eccentric shaft according to the embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.