挖掘装载机变速箱吸油管

Abstract

本实用新型公开了一种挖掘装载机变速箱吸油管：轴套前端外表面设与箱体配合的止口Ⅰ和与耳板定位的止口Ⅱ，后端内孔设与油管本体定位的内止口；油管本体上端与轴套之间焊接连接，并通过内止口确保两者之间焊接定位；耳板通过止口Ⅱ定位，耳板与轴套之间焊接固定，吸油管总成通过耳板装配固定在变速箱体上；油管本体下端设朝下的斜切口作吸油口，油管本体下端端口焊接固定有盖板，用以降低变速箱内部液位高度，该油管本体在靠近下端处焊接连接固定有挡板，该挡板用于粗滤芯的限位与密封。本实用新型结构简单紧凑、制作合格率高、使用可靠，解决了现有技术中因油管本体结构弯曲复杂使前端配合部位容易变形导致吸油管在制作过程中合格率低的问题。

Claims

1. An oil suction pipe for a loader gearbox, comprising a lug plate (2), a pipe body (3), a baffle (4), and a cover plate (5), wherein the lower end of the pipe body (3) has a downward-facing oblique cut (3.6) as an oil suction port, and a cover plate (5) is welded and fixed to the lower end of the pipe body (3) to reduce the internal fluid level of the gearbox; the baffle (4) is welded and fixed to the pipe body (3) near the lower end, and the baffle (4) is used for limiting and sealing the coarse filter element; characterized in that, It also includes a bushing (1); the front end outer surface of the bushing (1) is provided with a stop I (1.1) that mates with the housing and a stop II (1.2) that positions with the ear plate (2), and the rear end inner hole is provided with an inner stop (1.3) that positions with the oil pipe body (3); the upper end of the oil pipe body (3) is fixed to the bushing (1) by welding, and the welding positioning between the oil pipe body (3) and the bushing (1) is ensured by the inner stop (1.3) of the bushing; the ear plate (2) is positioned by the stop II (1.2) of the bushing (1), and the ear plate (2) is fixed to the bushing (1) by welding, and the oil suction pipe assembly is assembled and fixed on the gearbox body by the ear plate (2).

2. The excavator transmission oil suction tube of claim 1, wherein, The oil pipe body (3) has five bends according to the internal space structure of the gearbox, namely bend I (3.1), bend II (3.2), bend III (3.3), bend IV (3.4) and bend V (3.5).

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