CN216554249U

CN216554249U - Compressor and piston mechanism with spherical connecting rod

Info

Publication number: CN216554249U
Application number: CN202123156623.2U
Authority: CN
Inventors: 王位强; 林记亮
Original assignee: Suzhou Zhongcheng New Energy Technology Co ltd
Current assignee: Suzhou Zhongcheng New Energy Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-17
Anticipated expiration: 2031-12-15

Abstract

The specification discloses a compressor and piston mechanism with a spherical connecting rod, which comprises a cylinder body, a planet disc gear assembly arranged in the cylinder body, a piston capable of sliding relative to the cylinder body, and a connecting rod arranged between the planet disc gear assembly and the piston, wherein a piston ring is arranged between the piston and the cylinder body, and the piston ring is provided with at least one notch extending along the radial direction. In the free state of the piston ring, the ratio of the width of the gap of the piston ring to the diameter of the piston ring is 1: 14. The piston ring is made of an aluminum alloy. Compared with the prior art, by means of the structure, the piston ring is provided with the notch, so that the piston ring can be easily arranged on the piston through deformation of the piston ring in the installation process. For example, the piston ring can be pressed directly into the groove of the piston by manual operation.

Description

Compressor and piston mechanism with spherical connecting rod

Technical Field

The utility model relates to an automobile compressor system, in particular to a compressor with a spherical connecting rod and a piston mechanism.

Background

In the prior art, piston rings are often required to be arranged between a piston and a compressor cylinder so as to avoid direct friction between the piston and the compressor cylinder and achieve a sealing effect. In order to mount the piston ring on the piston, a special machine is usually required to press the piston ring down and directly fit on the piston. This is complicated and also tends to deform the piston ring.

SUMMERY OF THE UTILITY MODEL

The present description aims to provide a compressor and piston mechanism with a spherical connecting rod to solve at least one of the above technical problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a compressor having a spherical connecting rod, comprising a cylinder, a planetary disc gear assembly arranged inside the cylinder, a piston slidable relative to the cylinder, a connecting rod arranged between the planetary disc gear assembly and the piston, a piston ring arranged between the piston and the cylinder, the piston ring having at least one radially extending gap.

Preferably, in a free state of the piston ring, a ratio of a width of the gap of the piston ring to a diameter of the piston ring is 1: 14.

Preferably, the piston ring is made of an aluminum alloy.

Preferably, after the piston ring is installed in the piston, the gap of the notch is 0.1-0.3 mm.

Preferably, the number of the piston rings is plural, and the plural piston rings are arranged at intervals along the axial direction of the piston.

Preferably, the outer side wall of the piston is provided with a groove for accommodating the piston ring, and the diameter of the side wall of the piston for forming the groove is less than 0.4 mm of the diameter of the inner side wall of the piston ring before the piston is installed in the piston.

Preferably, the piston ring can snap directly into the groove.

The embodiment of the application discloses piston mechanism, including the piston with establish the piston ring in the piston outside, the piston ring has at least one along radially extending breach.

Preferably, the piston ring is made of an aluminum alloy.

Compared with the prior art, by means of the structure, the piston ring is provided with the notch, so that the piston ring can be easily arranged on the piston through the deformation of the piston ring in the installation process. For example, the piston ring can be pressed directly into the groove of the piston by means of manual work.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present specification, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a compressor provided in an embodiment of the present disclosure.

Fig. 2 is a schematic structural diagram of a piston mechanism provided in an embodiment of the present specification.

The figures of the above drawings are numbered: 1. a cylinder body; 2. a planetary disk gear assembly; 3. a piston; 4. a connecting rod; 5. a piston ring.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present specification, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only a part of the embodiments of the present specification, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step should fall within the scope of protection of the present specification.

Referring to fig. 1 and 2, the embodiment of the present application discloses a compressor with a spherical connecting rod 4, which includes a cylinder 1, a planetary disc gear assembly 2 disposed inside the cylinder 1, a piston 3 capable of sliding relative to the cylinder 1, and a connecting rod 4 disposed between the planetary disc gear assembly 2 and the piston 3, wherein a piston ring 5 is disposed between the piston 3 and the cylinder 1, and the piston ring 5 has at least one notch extending in a radial direction.

By means of the structure, the piston ring 5 is provided with the notch, so that the piston ring 5 can be easily arranged on the piston 3 through the deformation of the piston ring 5 in the installation process. For example, the piston ring 5 can be pressed directly into the groove of the piston 3 by manual work.

In the present embodiment, in a free state of the piston ring 5, the outer diameter of the piston ring 5 is 70 mm, and the width of the gap of the piston ring 5 is 5 mm, that is, the ratio of the width of the gap of the piston ring 5 to the diameter of the piston ring 5 is 1: 14. After the piston ring 5 is inserted into the piston 3, the width of the gap changes from 5 mm to 0.1 to 0.3 mm. The piston ring 5 has an outer diameter slightly larger than the inner diameter of the cylinder, and is elastically deformed to be closely attached to the piston 3 when the piston 3 is mounted in the cylinder 1. Because the piston ring 5 and the cylinder are tightly attached, and the size of the gap is small, the gap is within an allowable range.

In particular, the piston 3 has, on its outer side wall, a groove for housing the piston ring 5, and the diameter of the side wall of the piston 3 that constitutes the groove may be 63.6 mm. Before installation, the diameter of the inner side wall of the piston ring 5 is 64 mm. The diameter of the side wall of the piston 3 which forms the groove is less than 0.4 mm than the diameter of the inner side wall of the piston ring 5. The piston ring 5 can be snapped into the groove directly from the side.

Preferably, the piston ring 5 may be made of an aluminum alloy. Compared with the prior cast iron material, the aluminum alloy has better elasticity, light weight, high strength and strong corrosion resistance.

The number of the piston rings 5 is plural, and the plural piston rings 5 are arranged at intervals along the axial direction of the piston 3. In the present embodiment, the number of piston rings 5 is 2. Of course, in other alternative embodiments, the number of piston rings 5 may be set according to actual needs.

Referring to fig. 2, the embodiment of the present application further discloses a piston 3 mechanism, which includes a piston 3 and a piston ring 5 disposed on the outer side of the piston 3, wherein the piston ring 5 has at least one radially extending gap. The piston ring 5 is made of an aluminum alloy.

The principle and the implementation mode of the utility model are explained by applying specific embodiments in the utility model, and the description of the embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A compressor having a spherical connecting rod, comprising a cylinder, a planetary disc gear assembly arranged inside the cylinder, a piston slidable relative to the cylinder, a connecting rod arranged between the planetary disc gear assembly and the piston, a piston ring arranged between the piston and the cylinder, the piston ring having at least one radially extending gap.

2. The compressor of claim 1, wherein a ratio of a width of the gap of the piston ring to a diameter of the piston ring in a free state of the piston ring is 1: 14.

3. The compressor of claim 1, wherein the piston ring is made of an aluminum alloy.

4. The compressor of claim 1, wherein the gap of the gap is 0.1-0.3 mm after the piston ring is installed in the piston.

5. The compressor of claim 1, wherein the number of the piston rings is plural, and the plural piston rings are arranged at intervals in an axial direction of the piston.

6. The compressor of claim 1, wherein the piston has a groove on its outer side wall for receiving the piston ring, and the diameter of the side wall of the piston for forming the groove is less than 0.4 mm of the diameter of the inner side wall of the piston ring before the piston is installed.

7. A compressor according to claim 6, characterized in that the piston ring can be snapped directly into the groove.

8. A piston mechanism comprising a piston and a piston ring disposed about an exterior of said piston, said piston ring having at least one radially extending gap.

9. A piston mechanism according to claim 8, wherein said piston rings are made of an aluminium alloy.