CN203640967U

CN203640967U - Compressor casting cylinder body

Info

Publication number: CN203640967U
Application number: CN201320683586.7U
Authority: CN
Inventors: 黄聪
Original assignee: ZIGONG CHANGZHENG PRECISION CASTING AND FORGING CO Ltd
Current assignee: ZIGONG CHANGZHENG PRECISION CASTING AND FORGING CO Ltd
Priority date: 2013-11-01
Filing date: 2013-11-01
Publication date: 2014-06-11
Anticipated expiration: 2023-11-01

Abstract

The utility model discloses a compressor casting cylinder body. A cylinder barrel and gas valve holes positioned in the two sides of the cylinder barrel are arranged in the cylinder body. The compressor casting cylinder body is characterized in that an upper sunk slot and a lower sunk slot are formed in the cylinder body between the cylinder barrel and the inner walls of the two gas valve holes, and the upper sunk slot and the lower sunk slot are connected through more than one water hole in the cylinder. The compressor casting cylinder body can eliminate casting thermal centers and reduce shrinkage cavities and reduces the rejection rate.

Description

Compressor class foundry goods cylinder body

Technical field

The utility model relates to a kind of foundry goods cylinder body of compressor class.

Background technique

Compressor class cylinder mostly is casting, as shown in Figure 1, is provided with cylinder barrel 2 and the air valve hole 3 that is positioned at cylinder barrel 2 both sides in cylinder body 1, is provided with the water passage hole 6 of perforation in the cylinder body between cylinder barrel 2 and two air valve hole 3 inwalls; Because of the particularity of this structure, wall thickness is larger, has very large casting thermal center, bring difficulty to casting, in casting very easily there is the casting defects such as shrinkage cavity in thermal center place, in the time carrying out sluice pressure testing, water will be from there being the local seepage of the casting defects such as shrinkage cavity, thereby cylinder is scrapped, and reject rate is higher.

Model utility content

The purpose of this utility model is for prior art above shortcomings, and a kind of compressor class foundry goods cylinder body is provided, and it can be eliminated casting thermal center, reduce the casting defects such as shrinkage cavity, has reduced reject rate.

For achieving the above object, compressor class foundry goods cylinder body of the present utility model, in cylinder body, be provided with cylinder barrel and the air valve hole that is positioned at cylinder barrel both sides, it is characterized in that being equipped with upper and lower two deep gouges on the cylinder body between cylinder barrel and two air valve hole inwalls, upper and lower two deep gouges are all connected by more than one water passage hole in cylinder body.

The utility model is owing to being equipped with upper and lower two deep gouges on the cylinder body between cylinder barrel and two air valve hole inwalls, and the wall thickness of cylinder barrel both sides greatly reduces, and can eliminate casting thermal center, reduce the casting defects such as shrinkage cavity, has reduced reject rate;

As further improvement of the utility model, upper and lower two deep gouge symmetries are positioned at the both sides of cylinder barrel horizontal center line; Can make thermal stress even, further reduce casting defect;

In sum, the utility model can be eliminated casting thermal center, reduce the casting defects such as shrinkage cavity, has reduced reject rate.

Brief description of the drawings

Fig. 1 is the plan view of existing compressor class cylinder.

Fig. 2 is the utility model embodiment's plan view.

Fig. 3 is the plan view of Fig. 2.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 2 and Figure 3, this compressor class foundry goods cylinder body, in cylinder body 1, be provided with cylinder barrel 2 and the air valve hole 3 that is positioned at cylinder barrel 2 both sides, on the cylinder body 1 between cylinder barrel 2 and two air valve hole 3 inwalls, be all arranged with deep gouge 4 and lower deep gouge 5, upper deep gouge 4 is all connected by the water passage hole 7 of two or four in cylinder body with lower deep gouge 5.

The utility model is owing to being equipped with deep gouge 4 and lower deep gouge 5 on the cylinder body 1 between cylinder barrel 2 and two air valve hole 3 inwalls, and the wall thickness of cylinder barrel 2 both sides greatly reduces, and can eliminate casting thermal center, reduce the casting defects such as shrinkage cavity, has reduced reject rate.

Claims

1. a compressor class foundry goods cylinder body, in cylinder body, be provided with cylinder barrel and the air valve hole that is positioned at cylinder barrel both sides, it is characterized in that being equipped with upper and lower two deep gouges on the cylinder body between cylinder barrel and two air valve hole inwalls, upper and lower two deep gouges are all connected by more than one water passage hole in cylinder body.

2. compressor class foundry goods cylinder body as claimed in claim 1, is characterized in that upper and lower two deep gouge symmetries are positioned at the both sides of cylinder barrel horizontal center line.