CN202900636U - 一种齿轮计量泵 - Google Patents

一种齿轮计量泵 Download PDF

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CN202900636U
CN202900636U CN 201220520751 CN201220520751U CN202900636U CN 202900636 U CN202900636 U CN 202900636U CN 201220520751 CN201220520751 CN 201220520751 CN 201220520751 U CN201220520751 U CN 201220520751U CN 202900636 U CN202900636 U CN 202900636U
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poppet
pump
metering pump
fore poppet
gear
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孟庆武
虞召存
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Ji'nan Uniclever Fine Flow Machinery Co Ltd
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Abstract

本实用新型涉及一种结构简单，使用方便，可有效延长使用寿命的齿轮计量泵。它包括泵体，泵体两侧设有前支架和后支架，所述前支架前方为密封腔，密封腔前端为密封压盖，从而共同组成一个密封腔体；泵体的主动齿轮轴贯穿密封压盖、密封腔、前支架及后支架。

Description

一种齿轮计量泵
技术领域
本实用新型涉及一种齿轮计量泵。 
背景技术
现有齿轮计量泵的密封部位密封的液体是泵出口液体泄漏到此处的，其压力与泵的出口压力相当，当计量泵的工作压力超过1MPa时，易造成密封失效或损坏。 
实用新型内容
本实用新型的目的就是为解决上述问题，提供一种结构简单，使用方便，可有效延长使用寿命的齿轮计量泵。 
为实现上述目的，本实用新型采用如下技术方案： 
一种齿轮计量泵，它包括泵体，泵体两侧设有前支架和后支架，所述前支架前方为密封腔，密封腔前端为密封压盖，从而共同组成一个密封腔体；泵体的主动齿轮轴贯穿密封压盖、密封腔、前支架及后支架。 
所述前支架开有孔，孔把密封腔体与前支架内的进口通道相联通，形成一个连通器。 
所述主动齿轮轴、被动齿轮轴的齿轮部位与前支架、后支架间分别装有摩擦片。 
本实用新型将现有齿轮计量泵的结构进行了改进，在其前支架的进液通道与密封腔体间开一孔，把密封腔体与进液通道相连通，使密封腔体的压力与泵进口压力相同，而与泵的出口压力无关。 
本实用新型齿轮计量泵的主动齿轮轴、被动齿轮轴的齿轮部位与前支架、后支架间装有摩擦片。 
本实用新型的有益效果是：结构简单，维护方便，使用寿命长。 
附图说明
图1是本实用新型的结构图。 
图2是本实用新型前支架结构图。 
图2a是图2的剖视图。 
其中，1主动齿轮轴，2密封压盖，3密封，4密封腔，5密封腔体，6前支架，7摩擦片，8泵体，9被动齿轮轴，10后支架，11后泵盖，12孔a，13进口通道。 
具体实施方式
下面结合附图与实施例对本实用新型做进一步说明。 
图1、图2、图2a中，本实用新型齿轮计量泵有主动齿轮轴1，密封压盖2，密封3，密封腔4，前支架6，摩擦片7，泵体8，被动齿轮轴9，后支架10，后泵盖11。 
参看图1，图2、图2a，密封压盖2与密封腔4相联，密封腔4与前支架6相联，它们共同组成密封腔体5，密封3就装在这个密封腔体里。前支架6上开有孔a12，孔a12把密封腔体与进口通道13相联通，形成一个连通器。根据连通器原理，不管泵的出口压力是多少，密封腔体5内的液体压力与进口通道内的液体压力总是相等的。由于进口通道的压力很低，对于密封3来说密封低压液体是比较容易的。 
主动齿轮轴1和被动齿轮轴9的齿轮部位与前支架6，后支架10间装有摩擦片7。摩擦片7把齿轮与前、后支架隔离开，避免了它们直接接触，产生相互间的磨损。摩擦片7自润滑性好，硬度低，在与齿轮产生磨擦时，不会磨损齿轮，维修时只需更换摩擦片7。 

Claims (2)

1.一种齿轮计量泵，它包括泵体，泵体两侧设有前支架和后支架，其特征是，所述前支架前方为密封腔，密封腔前端为密封压盖，从而共同组成一个密封腔体；泵体的主动齿轮轴贯穿密封压盖、密封腔、前支架及后支架。
2.如权利要求1所述的齿轮计量泵，其特征是，所述前支架开有孔，孔把密封腔体与前支架内的进口通道相联通，形成一个连通器。
3根据权利要求1所述的齿轮计量泵，其特征是，所述主动齿轮轴、被动齿轮轴的齿轮部位与前支架、后支架间分别装有摩擦片。
CN 201220520751 2012-10-12 2012-10-12 一种齿轮计量泵 Expired - Fee Related CN202900636U (zh)

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Owner name: SHANDONG SHIJING MACHINERY CO., LTD.

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Effective date: 20141022

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Address after: 251100, Shandong County, Dezhou province Qihe County private private Pioneer Park Xinghua Road, the middle

Patentee after: Shandong Shijing Machinery Co., Ltd.

Address before: 5 Street 250000 Shandong province Huaiyin District of Ji'nan City Road millet Xinsha Industrial Park No. 22

Patentee before: Yu Zhaocun

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Effective date of registration: 20190905

Address after: 250000 Room 1502, Unit 2, Building 5, Jinxiu Quancheng, 12 Qilihe Road, Licheng District, Jinan City, Shandong Province

Patentee after: Ji'nan uniclever fine flow Machinery Co. Ltd.

Address before: 251100, Shandong County, Dezhou province Qihe County private private Pioneer Park Xinghua Road, the middle

Patentee before: Shandong Shijing Machinery Co., Ltd.

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130424

Termination date: 20201012

CF01 Termination of patent right due to non-payment of annual fee