CN202811940U - 弹簧制动气室活塞筒 - Google Patents

弹簧制动气室活塞筒 Download PDF

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Publication number
CN202811940U
CN202811940U CN 201220403263 CN201220403263U CN202811940U CN 202811940 U CN202811940 U CN 202811940U CN 201220403263 CN201220403263 CN 201220403263 CN 201220403263 U CN201220403263 U CN 201220403263U CN 202811940 U CN202811940 U CN 202811940U
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China
Prior art keywords
spring brake
brake chamber
piston cylinder
cylindrical shell
suction port
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Expired - Fee Related
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CN 201220403263
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English (en)
Inventor
杨乃根
杨公臣
杨勇
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ZHEJIANG PIPE AUTOMOBILE PARTS CO Ltd
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ZHEJIANG PIPE AUTOMOBILE PARTS CO Ltd
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Priority to CN 201220403263 priority Critical patent/CN202811940U/zh
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Abstract

本实用新型公开了一种不会对密封圈产生损伤、加工简单的弹簧制动气室活塞筒。它包括筒体、设于筒体上的吸气孔,所述吸气孔周边向筒体内周凹陷,所述吸气孔周边的壁厚小于筒体壁厚。本实用新型适用于弹簧制动气室。

Description

弹簧制动气室活塞筒
技术领域
本实用新型涉及一种弹簧制动气室,尤其涉及一种弹簧制动气室活塞筒。
背景技术
在吸式弹簧制动气室的活塞筒上需加工吸气孔,而采用传统钻孔加工工艺,在吸气孔的周边容易产生毛刺或尖角等缺陷,而活塞筒在工作过程中需上下伸缩,活塞筒与中壳体内孔之间设置有密封圈,由于毛刺或尖角等的存在,导致密封圈异常磨损。
实用新型内容
本实用新型要解决的技术问题是提供一种不会对密封圈产生损伤、加工简单的弹簧制动气室活塞筒。
为了解决上述技术问题,本实用新型是通过以下技术方案来实现的:
本实用新型包括筒体、设于筒体上的吸气孔,所述吸气孔周边向筒体内周凹陷,所述吸气孔周边的壁厚小于筒体壁厚。
本实用新型与现有技术相比,具有以下明显优点与有益效果:
1、不会对密封圈产生损伤。由于本实用新型中的吸气孔周边采用内凹设计,避免对密封圈产生损伤。
2、加工简单。由于本实用新型中的吸气孔周边的壁厚小于筒体壁厚,可采用冷挤压方法使吸气孔周边向筒体内周凹陷,使加工简单。
附图说明
附图是本实用新型的结构示意图。
具体实施方式
下面结合附图及具体实施方式对本实用新型作进一步详细的描述:
如附图所示:本实用新型包括筒体1、设于筒体1上的吸气孔2,吸气孔2周边向筒体1内周凹陷,吸气孔2周边的壁厚小于筒体1壁厚。

Claims (1)

1.一种弹簧制动气室活塞筒,包括筒体、设于筒体上的吸气孔,其特征在于所述吸气孔周边向筒体内周凹陷,所述吸气孔周边的壁厚小于筒体壁厚。
CN 201220403263 2012-05-08 2012-08-08 弹簧制动气室活塞筒 Expired - Fee Related CN202811940U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220403263 CN202811940U (zh) 2012-05-08 2012-08-08 弹簧制动气室活塞筒

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201220237147 2012-05-08
CN201220237147.9 2012-05-08
CN 201220403263 CN202811940U (zh) 2012-05-08 2012-08-08 弹簧制动气室活塞筒

Publications (1)

Publication Number Publication Date
CN202811940U true CN202811940U (zh) 2013-03-20

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Application Number Title Priority Date Filing Date
CN 201220403263 Expired - Fee Related CN202811940U (zh) 2012-05-08 2012-08-08 弹簧制动气室活塞筒

Country Status (1)

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CN (1) CN202811940U (zh)

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Granted publication date: 20130320

Termination date: 20140808

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