Subway gearbox box

Abstract

The invention discloses a box body of a subway gear box. The box body comprises an upper box body and a lower box body, wherein the inner wall of the upper box body is provided with a large bearing oil collecting groove and a small bearing oil collecting groove, the large bearing oil collecting groove consists of a first box wall section and a first oil groove baffle plate and is positioned at the upper part of a large bearing seat support hole, the bottom of the large bearing oil collecting groove is communicated with the large bearing seat support hole through a large bearing oil inlet hole, the upper part of the large bearing oil collecting groove is provided with an oil baffle plate, the small bearing oil collecting groove consists of a second box wall section and a second oil groove baffle plate and is positioned at the upper part of a small bearing seat support hole, the annular section of the small bearing oil collecting groove is in semicircular extending around the small bearing seat support hole of the upper box body, an included angle alpha between the axial line of an inclined section and the horizontal center line is 15 degrees to 30 degrees, one end of the inclined section is connected with the annular section, the other end of the inclined section extends in the direction towards the large bearing support hole or extends to the large bearing seat support hole, and the small bearing oil collecting groove is communicated to the small bearing seat support hole. The box body has the advantages that a gear box bearing can be effectively and reliably lubricated, and the heat radiation effect is good.

Description

technical field

[0001] The invention relates to a gear box, in particular to a subway gear box. Background technique

[0002] The gearbox is one of the key components in the field of urban rail transit. As the speed and load of urban rail vehicles continue to increase, the temperature rise of the gearbox will increase. Whether the lubrication structure is reasonable and reliable will directly affect the normal use of the gearbox. The existing gearbox The oil collecting space of the lubricating structure is small, the amount of oil stored is small, and the bearing lubrication is insufficient, which leads to an increase in the temperature rise of the gearbox and affects driving safety. Contents of the invention

[0003] The purpose of the present invention is to provide a subway gearbox casing capable of effectively and reliably lubricating the gearbox bearings and improving the heat dissipation effect of the gearbox.

[0004] In order to achieve the above object, the techn...

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