CN217469579U

CN217469579U - Refrigerating machine rotor structure and refrigerating machine

Info

Publication number: CN217469579U
Application number: CN202221486426.9U
Authority: CN
Inventors: 黄立; 刘文吉; 孙超; 郭亚军; 徐涛; 左冲
Original assignee: Wuhan Gaoxin Technology Co Ltd
Current assignee: Wuhan Gaoxin Technology Co Ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-09-20
Anticipated expiration: 2032-06-14

Abstract

The utility model relates to a stirling refrigerator technical field specifically provides a refrigerator rotor structure and refrigerator, wherein, rotor structure includes: the rotor is provided with a conical hole which is coaxial with the rotor; the rotating shaft is arranged in the rotor, and a conical shaft matched with the conical hole is arranged on the rotating shaft; the fixing cap is arranged at one end of the rotor and connected with the small end of the conical shaft so as to tighten the conical shaft in the conical hole; the embodiment of the utility model discloses refrigerator rotor mechanism and refrigerator, wherein, refrigerator rotor structure is through offering the bell mouth with it coaxial setting in the rotor, and set up the conical shaft in the pivot with the cooperation bell mouth, fix at the locking cap in the time of in the pivot, the locking cap will the conical shaft is taut in the conical shaft, at the connection in-process, the rotor with do not need glue between the pivot to can prevent that glue from polluting.

Description

Refrigerating machine rotor structure and refrigerating machine

Technical Field

The utility model relates to a stirling refrigerator technical field especially relates to a refrigerator rotor structure and refrigerator.

Background

In the operation process of the rotary Stirling refrigerator, the electric control driving rotor assembly is driven to rotate, the rotor assembly is fixedly connected with a central driving shaft (namely a rotating shaft), and the rotating motion is converted into the reciprocating motion of a piston through an eccentric mechanism on the rotating shaft, so that a refrigeration effect is formed.

The rotating shaft of the existing rotary Stirling refrigerator is a slender shaft, the rotor and the rotating shaft are matched in a cylindrical and clearance fit mode, and glue is spread on the matching surface to fix the rotor and the rotating shaft. However, the matching mode has partial defects, the rigidity of the upper end and the lower end of the rotating shaft with the slender shaft structure is consistent, but the loads of the two ends are inconsistent; in order to prevent the shaking problem caused by the clearance fit of the rotating shaft and the rotor, glue is coated on the matching surface, and a pollution source is introduced into the refrigerating machine by the glue coating process. Based on the problems, the application provides a refrigerating machine rotor structure and a refrigerating machine.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a refrigerator rotor structure and refrigerator to solve present refrigerator rotor processing technology and introduce the problem of pollution sources for the refrigerator.

In order to achieve the above object, the utility model provides a following technical scheme:

a rotor structure of a refrigerator and the refrigerator, the rotor structure includes:

the rotor is provided with a conical hole which is coaxial with the rotor;

the rotating shaft is arranged in the rotor, and a conical shaft matched with the conical hole is arranged on the rotating shaft;

the fixing cap is arranged at one end of the rotor and connected with the small end of the conical shaft so as to tighten the conical shaft in the conical hole.

Furthermore, the rotor is in a cylindrical shape with openings at two ends, a counter bore is formed in one end, close to the fixing cap, of the rotor, and the fixing cap is fixed in the counter bore.

Further, the fixing cap and the rotor are integrally formed.

Further, a fastening part is provided on the tapered shaft to mount the fixing cap.

Furthermore, a threaded hole is formed in the fixing cap, and the fastening portion is of a stud structure.

Further, the rotor structure further includes:

the rotating shaft is provided with a bearing part at one end of the conical shaft far away from the fixing cap, and the double-row bearing is sleeved on the bearing part;

and the double-row bearing is fixed on the bearing support component.

Further, a bearing groove is formed in the bearing support assembly to mount a double-row bearing.

Furthermore, an eccentric shaft is arranged at one end, far away from the fixing cap, of the rotating shaft, and an isolating ring is arranged between the bearing portion and the eccentric shaft of the rotating shaft.

Further, an annular structure is arranged at one end, close to the double-row bearing, of the rotor to limit the double-row bearing.

The utility model also discloses a refrigerator, including above-mentioned arbitrary one refrigerator rotor mechanism.

To sum up, compared with the prior art, the utility model has the following beneficial effects:

1. the embodiment of the utility model discloses refrigerator rotor mechanism and refrigerator, wherein, refrigerator rotor structure is through offering the bell mouth with it coaxial setting in the rotor, and set up the conical shaft in the pivot with the cooperation bell mouth, fix at the locking cap in the time of in the pivot, the locking cap will the conical shaft is taut in the conical shaft, at the connection in-process, the rotor with do not need glue between the pivot to can prevent that glue from polluting.

2. The embodiment of the utility model discloses refrigerator rotor mechanism is still through the design of bearing supporting component and locking cap and the size design control double row bearing's of bell mouth and conical shaft pretightning force, makes double row bearing's pretightning force can reach suitable requirement.

3. The embodiment of the utility model discloses pivot among the refrigerator rotor mechanism is the variable cross section form, compares in cross section form such as, and rigidity promotes to some extent, has improved the stability and the life-span of pivot.

Drawings

Fig. 1 is a schematic structural diagram of a rotor structure of a refrigerator according to the present invention.

Fig. 2 is an exploded view of the rotor structure of the refrigerator disclosed in fig. 1.

Fig. 3 is a cross-sectional view of the chiller rotor structure disclosed in fig. 1 along its axis.

Fig. 4 is a schematic structural diagram of a bearing support assembly in a refrigerator according to the present invention.

Reference numerals: 1. a rotor; 2. a rotating shaft; 21. a fastening section; 22. a tapered shaft; 23. a bearing portion; 24. an eccentric shaft; 25. an isolating ring; 3. a bearing support assembly; 31. a bearing groove; 4. a double-row bearing; 5. and (4) fixing the cap.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Example 1

As shown in fig. 1 to 3, an embodiment of the present invention provides a rotor structure of a refrigerator, the rotor structure including:

the rotor 1 is provided with a conical hole which is coaxial with the rotor 1;

the rotating shaft 2 is arranged in the rotor 1, and a conical shaft 22 matched with the conical hole is arranged on the rotating shaft 2;

and the fixing cap 5 is arranged at one end of the rotor 1, and the fixing cap 5 is connected with the small end of the conical shaft 22 so as to tighten the conical shaft in the conical hole.

In this embodiment, when the rotor 1 and the rotating shaft 2 are assembled, the rotating shaft 2 is installed in a tapered hole in the rotor 1, the fixing cap 5 is screwed to the small end of the tapered shaft 22, and the matching surfaces of the rotor 1 and the rotating shaft 2 are gradually attached to each other, because the tapered shaft 22 and the tapered hole have a certain taper, the matching surfaces of the rotor 1 and the rotating shaft 2 reach a fixed position and are limited, so that the rotor 1 and the rotating shaft 2 can be fixed, in this embodiment, the connecting mode of the rotor 1 and the rotating shaft 2 cancels glue, and can prevent the glue pollution generated in the assembling process;

as shown in fig. 3, the rotor 1 is a cylinder with openings at both ends, and a counter bore is arranged at one end of the rotor 1 close to the fixing cap 5 so that the fixing cap 5 is arranged in the rotor 1; in other embodiments, the fixing cap 5 may be integrally formed with the rotor 1.

As shown in fig. 2, in the present embodiment, a fastening portion 21 is provided on the conical shaft 22 to mount the fixing cap 5, a threaded hole is provided in the fixing cap 5, the fastening portion 21 has a stud structure, the rotating shaft 2 is fixedly connected into the conical hole when the fixing cap 5 is screwed on the fastening portion 21, an eccentric shaft 24 is provided at an end of the rotating shaft 2 away from the fastening portion 21 to mount a piston mechanism, and the fastening portion 21, the conical shaft 22 and the eccentric shaft 24 are an integrated structure;

as a preferred embodiment in this embodiment, the rotor structure further includes:

the bearing support component 3 is arranged at one end of the conical shaft 22 far away from the fixing cap 5;

the double-row bearing 4 is arranged on the rotating shaft 2, the double-row bearing 4 is sleeved at one end, far away from the fixing cap 5, of the conical shaft 22, an annular structure is arranged at one end, close to the double-row bearing 4, of the rotor 1 to limit the double-row bearing 4, and the double-row bearing 4 is fixed on the bearing support component 3;

in this embodiment, when the fixing cap 5 is screwed on the fastening portion 21, a position limiting effect is provided between the tapered hole on the rotor 1 and the tapered shaft 22, and based on the size of the annular structure on the rotor 1 and the design of the installation position of the bearing support assembly 3, the pressing force of the rotor 1 on the double-row bearing 4 is controlled, so that the pre-tightening force of the double-row bearing 4 reaches a proper magnitude, and the pre-tightening force of the double-row bearing 4 reaches a requirement in the assembly process;

as shown in fig. 4, the bearing support assembly 3 is disc-shaped, a bearing groove 31 is formed on the bearing support assembly 3 to mount the double-row bearing 4, and the double-row bearing 4 is in interference connection with the bearing groove 31;

it should be noted that, in the present embodiment, the bearing support assembly 3 may be any structure for supporting the double-row bearing 4, for example, the bearing support assembly 3 may be a groove structure or a bearing seat matching with the double-row bearing 4.

As shown in fig. 2, in this embodiment, the rotating shaft 2 is provided with a bearing portion 23 at one end of the tapered shaft 22 far from the fastening portion 21 to mount the double-row bearing 4, the bearing portion 23 is cylindrical, the rotating shaft 2 is provided with a spacer ring 25 between the bearing portion 23 and the eccentric shaft 24, the spacer ring 25 is integrated with the fastening portion 21, the tapered shaft 22, the bearing portion 23 and the eccentric shaft 24, the rotating shaft 2 is machined, the double-row bearing 4 is pressed into the bearing support assembly 3 during assembly, the rotating shaft 2 is pressed into the double-row bearing 4, the rotor 1 is sleeved on the tapered shaft 22, and the fixing cap 5 is screwed on the fastening portion 21 to complete the installation of the rotor structure.

Example 2

The utility model also discloses a refrigerator, the refrigerator includes embodiment 1 refrigerator rotor mechanism.

To sum up, the embodiment of the utility model discloses a refrigerator rotor mechanism and refrigerator, wherein, the refrigerator rotor structure sets up the bell mouth coaxial arrangement with it in rotor 1 through, and set up conical shaft 22 on pivot 2 in order to cooperate with the bell mouth, when fixing cap 5 is fixed on pivot 2, fixing cap 5 will conical shaft 22 strains in the bell mouth, in the connection process, do not need glue between rotor 1 and pivot 2, thereby can prevent glue pollution;

the embodiment of the utility model provides a pretightning force of bearing support assembly 3 and locking cap 5's design and bell mouth and conical shaft 22's dimensional design control double row bearing 4 still makes the pretightning force of double row bearing 4 can reach suitable requirement.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotor structure for a refrigerator, said rotor structure comprising:

the rotor is provided with a conical hole which is coaxial with the rotor;

2. The refrigerating machine rotor structure according to claim 1, wherein the rotor is a cylindrical shape having openings at both ends, and the rotor is provided with a counter bore at an end close to the fixing cap, and the fixing cap is fixed in the counter bore.

3. The chiller rotor structure of claim 1, wherein the retaining cap is integrally formed with the rotor.

4. The refrigerating machine rotor structure according to claim 1, wherein a fastening portion is provided on the tapered shaft to mount the fixing cap.

5. The refrigerating machine rotor structure according to claim 4, wherein a screw hole is provided in the fixing cap, and the fastening portion is a stud structure.

6. The refrigerating machine rotor structure according to any one of claims 1 to 5, wherein the rotor structure further comprises:

and the double-row bearing is fixed on the bearing support component.

7. The chiller rotor structure of claim 6, wherein the bearing support assembly is provided with bearing slots to mount double row bearings.

8. The chiller rotor structure of claim 6, wherein the rotating shaft is provided with an eccentric shaft at an end remote from the fixing cap, the rotating shaft being provided with a spacer ring between the bearing portion and the eccentric shaft.

9. The chiller rotor structure of claim 6, wherein the rotor is provided with an annular structure at an end near the double bearing to restrain the double bearing.

10. A refrigerator comprising a refrigerator rotor mechanism according to any one of claims 1 to 9.