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CN202251869U - 一体式手扶拖拉机变速箱上盖 - Google Patents

一体式手扶拖拉机变速箱上盖 Download PDF

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Publication number
CN202251869U
CN202251869U CN2011203717484U CN201120371748U CN202251869U CN 202251869 U CN202251869 U CN 202251869U CN 2011203717484 U CN2011203717484 U CN 2011203717484U CN 201120371748 U CN201120371748 U CN 201120371748U CN 202251869 U CN202251869 U CN 202251869U
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upper cover
loam cake
speed changing
guide portion
speed change
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Expired - Fee Related
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CN2011203717484U
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English (en)
Inventor
滕麟群
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CHANGYI CHANGRONG MACHINERY Co Ltd
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CHANGYI CHANGRONG MACHINERY Co Ltd
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Abstract

本实用新型公开了一种一体式手扶拖拉机变速箱上盖,包括:上盖本体,所述上盖本体上设有副变速导向部,所述上盖本体与副变速导向部为一体式铸造结构。所述副变速导向部是一个设有导向孔的凸台,所述凸台沿所述导向孔的轴向方向,向所述上盖本体的上下两个方向延伸。本实用新型结构简单,实用性强,简化了零部件的加工与装配工艺,提高了制造精度,降低了成本。

Description

一体式手扶拖拉机变速箱上盖
技术领域
本实用新型涉及一种手扶拖拉机变速箱,尤其是涉及一种一体式手扶拖拉机变速箱的上盖。
背景技术
现有的手扶拖拉机变速箱上盖与副变速导向套为分体式结构,生产时,变速箱上盖的本体与副变速导向套需分别攻丝,组装时,还需要将副变速导向套用螺栓等紧固件固定于所述变速箱上盖的本体上,并且要考虑用密封垫进行密封,生产工序繁琐,工时长,成本高。
实用新型内容
本实用新型所要解决的技术问题是:提供一种一体式手扶拖拉机变速箱上盖,以简化变速箱上盖零部件的加工与装配工艺,提高制造精度,降低成本。
为解决上述技术问题,本实用新型采用以下技术方案:一体式手扶拖拉机变速箱上盖,包括:上盖本体,所述上盖本体上设有副变速导向部,所述上盖本体与副变速导向部为一体式铸造结构。
作为一种优选的实施方式,所述副变速导向部是一个设有导向孔的凸台,所述凸台沿所述导向孔的轴向方向,向所述上盖本体的上下两个方向延伸。
采用了上述技术方案后,本实用新型的有益效果是:由于所述上盖本体与副变速导向部为一体式铸造结构,所以在不降低手扶拖拉机质量及性能的前提下,省去了原变速箱上盖装配时所需的导套及紧固、密封用零部件,简化了变速箱上盖零部件的加工与装配工艺,提高制造精度,降低成本。
附图说明
下面结合附图和具体实施方式对本实用新型作进一步详细的说明:
图1为本实用新型一种实施例的结构示意图;
其中,1、上盖本体;2、副变速导向部;3、导向孔。
具体实施方式
如图1所示,一体式手扶拖拉机变速箱上盖,它包括:上盖本体1,上盖本体1上设有副变速导向部2,上盖本体1与副变速导向部2为一体式铸造结构。副变速导向部2是一个设有导向孔3的凸台,所述凸台沿所述导向孔3的轴向方向,向上盖本体1的上下两个方向延伸。
本手扶拖拉机变速箱上盖将上盖本体1与副变速导向部2进行优化设计,将原变速箱上盖装有副变速导向套的部位处,分别加凸台铸造成为一体,保持导向孔3的位置不变,从而在不降低手扶拖拉机质量及性能的前提下,省去了原变速箱上盖装配时所需的导套及紧固、密封用的零部件,简化了零部件的加工与装配工艺,提高了制造精度,降低了成本。
本实用新型不局限于上述具体实施方式,只要变速箱上盖本体与副变速导向部为一体式铸造结构,不论变速箱上盖本体与副变速导向部采用何种形状,副变速导向部位于何种位置,均落在本实用新型的保护范围之中。

Claims (2)

1.一体式手扶拖拉机变速箱上盖,包括:上盖本体,所述上盖本体上设有副变速导向部,其特征在于,所述上盖本体与副变速导向部为一体式铸造结构。
2.如权利要求1所述的一体式手扶拖拉机变速箱上盖,其特征在于,所述副变速导向部是一个设有导向孔的凸台,所述凸台沿所述导向孔的轴向方向,向所述上盖本体的上下两个方向延伸。
CN2011203717484U 2011-09-27 2011-09-27 一体式手扶拖拉机变速箱上盖 Expired - Fee Related CN202251869U (zh)

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CN2011203717484U CN202251869U (zh) 2011-09-27 2011-09-27 一体式手扶拖拉机变速箱上盖

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CN2011203717484U CN202251869U (zh) 2011-09-27 2011-09-27 一体式手扶拖拉机变速箱上盖

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727208A (zh) * 2013-12-25 2014-04-16 南宁市南北动力有限公司 一种gt121手扶拖拉机的变速箱盖

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103727208A (zh) * 2013-12-25 2014-04-16 南宁市南北动力有限公司 一种gt121手扶拖拉机的变速箱盖

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Granted publication date: 20120530

Termination date: 20200927