CN217976584U

CN217976584U - Scroll compressor shafting structure without balance block

Info

Publication number: CN217976584U
Application number: CN202221500681.4U
Authority: CN
Inventors: 占兴潮; 吴元强; 郑红玲; 林延聪; 王蒙; 尹思源
Original assignee: Zhejiang Lingsheng Power Technology Co Ltd
Current assignee: Zhejiang Lingsheng Power Technology Co Ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-12-06
Anticipated expiration: 2032-06-14

Abstract

The utility model provides a scroll compressor shafting structure of no balancing piece, including main vortex dish, a plurality of balanced vortex dish and main shaft, the main shaft is equipped with connecting axle and rotation axis, the connecting axle is skew certain distance on the rotation axis law, the connecting axle passes through the fixed block fixed connection rotation axis of perpendicular to connecting axle, main vortex dish center and connecting axle center fixed connection, it is a plurality of balanced vortex dish center skew rotation axis, it is a plurality of balanced vortex dish fixed connection is at the rotation axis. The utility model discloses a rotatory kinetic energy is retrieved to balanced vortex dish, and balanced vortex dish is to gaseous acting.

Description

Scroll compressor shafting structure without balance block

Technical Field

The utility model relates to a scroll compressor shafting structure especially relates to a scroll compressor shafting structure of no balancing piece.

Background

The scroll compressor is a third generation novel volumetric compressor, and is a compressor with compressible volume consisting of a fixed involute scroll and an involute scroll which is in eccentric rotary translation. In the working process of air suction, compression and exhaust, the static disc is fixed on the frame, and the moving disc is driven by the eccentric shaft and restricted by the anti-rotation mechanism to rotate around the center of the base circle of the static disc in a plane with a small radius. The air is sucked into the periphery of the static disc through the air filter element, and along with the rotation of the eccentric shaft, the air is gradually compressed in a plurality of crescent-shaped compression cavities formed by meshing the static disc and then is continuously discharged from the axial hole of the central part of the static disc. Scroll compressors have been widely used in the fields of refrigeration, petroleum and chemical industry. In a revolving member system, if the mass of the rotor is not uniformly distributed, the unbalance affects the operation stability in the rotating process, the higher the rotating speed is, the more unstable the unbalance is, the transverse vibration of the rotor is caused, unnecessary dynamic load is applied to the rotor, and the normal operation of the rotor is not facilitated. But also causes eccentric wear of the support bearing, affects the service life of the bearing, and brings about damages such as vibration noise and the like.

The utility model discloses a shaft system structure and an electric scroll compressor with the same, which are disclosed in Chinese patent literature, and the publication number is CN210859215U, the utility model discloses a shaft system structure and an electric scroll compressor with the same, the shaft system structure comprises a motor rotor and a crankshaft which is connected in the motor rotor in a penetrating way; the motor rotor further comprises a first bearing, a second bearing and a third bearing, wherein the first bearing and the third bearing are respectively arranged at two ends of the crankshaft, and the second bearing is arranged between the first bearing and the motor rotor; the motor comprises a motor rotor, a crankshaft, a first bearing, a second bearing, a main balance block, an auxiliary balance block, an eccentric sleeve and a movable disc assembly, wherein the main balance block and the auxiliary balance block are arranged on two sides of the motor rotor respectively, the eccentric sleeve and the movable disc assembly are further arranged at one end of the crankshaft, the first bearing is sleeved in the eccentric sleeve, and the movable disc assembly is connected in the first bearing in a penetrating mode. Although this utility model's beneficial effect lies in, the bent axle atress is even, and the compressor operation is stable, reduces the compressor and rotor swing phenomenon appears at the operation in-process, but metal material and rotation kinetic energy have been wasted to the balancing piece of arranging, and the balancing piece can't be to gaseous acting.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome the balancing piece and wasted metal material and rotated kinetic energy, the balancing piece can't provide a vortex compressor shafting structure of no balancing piece to gaseous acting, has realized that balanced vortex dish retrieves rotatory kinetic energy, and balanced vortex dish is to gaseous acting.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a scroll compressor shafting structure of no balancing piece, includes main vortex dish, a plurality of balanced vortex dish and main shaft, the main shaft is equipped with connecting axle and rotation axis, the connecting axle upwards deviates certain distance at the rotating shaft method, the connecting axle is through the fixed block fixed connection rotation axis of perpendicular to connecting axle, main vortex dish center and connecting axle center fixed connection, it is a plurality of balanced vortex dish center deviation rotation axis, it is a plurality of balanced vortex dish fixed connection is at the rotation axis.

The utility model discloses be equipped with the main shaft, the main shaft is that connecting axle and rotation axis are formed through the connecting block connection, the skew rotation axis of connecting axle, connecting axle provide vortex power for the main vortex dish of fixed connection on it, and is a plurality of balanced vortex dish eccentric settling retrieves kinetic energy at the rotation axis in balanced main vortex dish, utilizes the kinetic energy compressed gas of retrieving.

As the utility model discloses an optimal scheme, the one side that the connecting axle was kept away from to main vortex dish is equipped with the first helical compression body that outwards disperses and perpendicular main vortex quotation from main vortex dish center.

The utility model discloses a main scroll is equipped with first spiral compression body, and first spiral compression body is used for main scroll to rotate the time compressed gas.

As the utility model discloses an optimal scheme, first spiral compression body is equipped with the space of reservation in the one side that main vortex dish kept away from the connecting axle, the space of reservation is used for bearing and coincide the main compression body.

The utility model discloses a main vortex dish is equipped with the space of reservation in the one side that is equipped with first spiral compression body for bear and coincide the main compression body.

As a preferable aspect of the present invention, the supporting body of the main scroll has a rib.

The utility model discloses a supporting body is equipped with the rib, makes the supporting body have great structural strength for the moment of antagonism connecting axle output and the lateral pressure of antagonism first helical compression body.

As the utility model discloses a preferred scheme, it is a plurality of one side that balanced vortex dish is close to main vortex dish is equipped with outwards disperses and the second helical compression body of vertical balance vortex dish quotation from balanced vortex dish center.

The utility model discloses be equipped with a plurality of balanced scrolls who takes the second helical compression body, balanced scrolls when producing counter torque, because of being equipped with the second helical compression body, can do work to gas, the rotation kinetic energy that will run off originally is recycled.

As the preferred scheme of the utility model, the eccentric distance of balanced scroll is less than the eccentric distance of main scroll, it is a plurality of the resultant force moment of the eccentric moment of balanced scroll equals main scroll eccentric moment.

The utility model discloses replace the balancing piece with balanced vortex dish, calculate required balanced vortex dish's eccentric distance and quantity according to the eccentric distance of main vortex dish easily.

As the utility model discloses a preferred scheme, the rotation axis is equipped with first bearing and second bearing, the diameter of first bearing is greater than the diameter of second bearing, first bearing sets up in the rotation axis and is close to connecting axle one side, the second bearing sets up in the rotation axis and keeps away from connecting axle one side.

The utility model discloses first bearing and second bearing have been set up at the rotation axis for lubricated rotation axis, the diameter of first bearing is greater than the diameter of second bearing is in order to accord with operational environment.

The utility model discloses following beneficial effect has:

1. the balance scroll plate with the second spiral compression body is arranged and used for balancing the main scroll plate and recovering kinetic energy to compress gas, so that efficient utilization of energy is facilitated;

2. the main shaft with the connecting shaft and the rotating shaft is arranged and used for driving the main scroll and the balance scroll which are directly connected, and the high-efficiency transmission and rotation kinetic energy is facilitated.

Drawings

Fig. 1 is an axial cross-sectional view of the present invention;

fig. 2 is a view of a first helical compression body of the present invention;

FIG. 3 is a second helical compression body view of the present invention;

in the figure: 1. the main scroll 2, the balance scroll 3, the main shaft 4, the connecting shaft 5, the rotating shaft 6, the first spiral compression body 7, the bearing body 8, the first bearing 9, the second bearing 10 and the second spiral compression body.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

This embodiment provides a scroll compressor shafting structure without balancing piece, according to fig. 1, including main scroll 1, a plurality of balanced scroll 2 and main shaft 3, main shaft 3 is equipped with connecting axle 4 and rotation axis 5, connecting axle 4 is skew certain distance in rotation axis 5 normal direction, connecting axle 4 is through the fixed block fixed connection rotation axis 5 of perpendicular to connecting axle 4, main scroll 1 center and the central fixed connection of connecting axle 4, a plurality of balanced scroll 2 center skew rotation axis 5, a plurality of balanced scroll 2 fixed connection is at rotation axis 5, the eccentric distance of balanced scroll 2 is less than the eccentric distance of main scroll 1, the resultant moment of the eccentric moment of a plurality of balanced scroll 2 equals main scroll 1 eccentric moment, according to fig. 2, the one side that connecting axle 4 was kept away from to main vortex dish 1 is equipped with the first helical compression body 6 that outwards diverges and perpendicular main vortex dish 1 face from main vortex dish 1 center, there is the space of reserving in the one side that connecting axle 4 was kept away from to first helical compression body 6 at main vortex dish 1, the space of reserving is used for bearing and coincide the main compression body, and main vortex dish 1's supporting body 7 has the rib, according to fig. 3, and is a plurality of one side that balanced vortex dish 2 is close to main vortex dish 1 is equipped with the second helical compression body 10 that outwards diverges and perpendicular balanced vortex dish 2 quotations from balanced vortex dish 2 center, rotation axis 5 is equipped with first bearing 8 and second bearing 9, the diameter of first bearing 8 is greater than the diameter of second bearing 9, first bearing 8 sets up in rotation axis 5 and is close to connecting axle 4 one side, second bearing 9 sets up in rotation axis 5 and keeps away from connecting axle 4 one side.

The working process of the embodiment:

gas enters from one side of the second bearing 9, the motor drives the main shaft 3 to rotate, the balance scrolls 2 and the main scroll 1 rotate in a torque balance state, the compressed gas of 2 levels of the balance scrolls is pushed to the main scroll 1, and the main scroll 1 compresses the gas.

The utility model discloses be equipped with the main shaft, the main shaft is that connecting axle and rotation axis are formed through the connecting block connection, the skew rotation axis of connecting axle, connecting axle provide vortex power for the main vortex dish of fixed connection on it, and are a plurality of balanced eccentric settling of vortex dish retrieves kinetic energy in the rotation axis when balanced main vortex dish, utilizes the kinetic energy compressed gas of retrieving.

The utility model discloses a main scroll is equipped with the first spiral compression body, and the first spiral compression body is compressed gas when being used for main scroll to rotate.

The utility model discloses a supporting body is equipped with the rib, and the supporting body has stronger structural strength for the moment of antagonism connecting axle output and the lateral pressure of the first helical compression body of antagonism.

The utility model discloses replace the balancing piece with balanced vortex dish, calculate required balanced vortex dish's eccentricity and quantity according to the eccentric distance of main vortex dish easily.

The utility model discloses first bearing and second bearing have been set up at the rotation axis for lubricated rotation axis, the diameter of first bearing is greater than the diameter of second bearing and is in order to accord with operational environment.

Claims

1. The utility model provides a no scroll compressor shafting structure of balancing piece, characterized by: including main vortex dish (1), a plurality of balanced vortex dish (2) and main shaft (3), main shaft (3) are equipped with connecting axle (4) and rotation axis (5), connecting axle (4) are skew certain distance in rotation axis (5) normal direction, connecting axle (4) fixed block fixed connection rotation axis (5) through perpendicular to connecting axle (4), main vortex dish (1) center and connecting axle (4) center fixed connection, a plurality of balanced vortex dish (2) center is skew rotation axis (5), and is a plurality of balanced vortex dish (2) fixed connection is at rotation axis (5).

2. The balance-free scroll compressor shafting structure is characterized in that one surface of the main scroll (1) far away from the connecting shaft (4) is provided with a first spiral compression body (6) which is outwards diverged from the center of the main scroll (1) and is vertical to the surface of the main scroll (1).

3. The shafting structure of the balance-weight-free scroll compressor as claimed in claim 2, wherein a reserved space is formed in one surface of the first spiral compression body (6) away from the connecting shaft (4) on the main scroll (1), and the reserved space is used for bearing and fitting the main compression body.

4. The unbalanced scroll compressor shafting structure of claim 2, wherein the main scroll (1) is provided with a supporting body (7), and the supporting body (7) is provided with ribs.

5. The shafting structure of the balance-weight-free scroll compressor as claimed in claim 1, wherein a second spiral compression body (10) which is diverged outward from the center of the balance scroll (2) and is perpendicular to the surface of the balance scroll (2) is provided on one side of the balance scrolls (2) close to the main scroll (1).

6. The shafting structure of the balance-weight-free scroll compressor as claimed in claim 1, wherein the eccentric distance of the balance scroll (2) is smaller than that of the main scroll (1), and the resultant moment of the eccentric moments of the balance scrolls (2) is equal to that of the main scroll (1).

7. The shafting structure of the unbalanced scroll compressor of claim 1, wherein the rotating shaft (5) is provided with a first bearing (8) and a second bearing (9), the diameter of the first bearing (8) is larger than that of the second bearing (9), the first bearing (8) is arranged on one side of the rotating shaft (5) close to the connecting shaft (4), and the second bearing (9) is arranged on one side of the rotating shaft (5) far away from the connecting shaft (4).