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Respirator for gear case

A technology of respirator and transmission box, applied in the field of respirator, can solve problems such as cost increase, and achieve the effects of convenient cleaning and replacement, high economic benefit and simple structure

Inactive Publication Date: 2013-05-08
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of a pressure-bearing transmission box respirator has major disadvantages, because it increases the air pressure in the transmission box, and puts forward higher requirements for the pressure resistance of the transmission box input and output shaft oil seals. Generally, the operating pressure range of ordinary oil seals If it is less than 0.5bar, if the pressure-resistant oil seal is used to replace the ordinary oil seal, in addition to the increase in cost, the structure of the transmission box may also need to be changed

Method used

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  • Respirator for gear case
  • Respirator for gear case
  • Respirator for gear case

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The respirator of the present invention can be used on the transmission case, and the respirator is fixed on the case body of the transmission case through threads (or flanges). The lower part of the respirator communicates with the interior of the transmission box, and the upper part communicates with the atmosphere outside the transmission box. The respirator is equipped with a filter element 2 inside, which can filter pollutant particles in the air and ensure that the liquid in the transmission box is not polluted.

[0038] A respirator used for a transmission box of the present invention has a simple and practical structure. Its main components include: respirator cover 1, filter element 2, filter plate 3, positioning shaft 4, oil retainer 5, respirator body 6 and oil retainer 7, such as figure 1 shown. The filter plate 3 and the positioning shaft 4 are connected by threads and nuts, and the positioning shaft 4 and several oil baffles 5 are fixed together by means...

Embodiment 2

[0040] The oil mist or oil foam splashed due to the agitation of the gears in the transmission box first enters the interior of the respirator through the oil retaining net 7 and the rows of small holes in the lower part of the respirator body 6, such as figure 2 As shown, the fineness of the rows of small holes at the bottom of the respirator body 6 is 0.1mm-5mm. Oil retaining screen 7 and the rows of small holes at the bottom of respirator body 6 block most of the splashed oil outside the respirator, allowing air to enter. The oil retaining screen 7 and the multi-row small holes at the bottom of the respirator body 6 can break most of the oil foam bubbles, and the oil of the broken oil foam will be blocked outside the respirator to allow air to enter. The oil retaining screen 7 is made of metal wire It is composed of mesh or plastic mesh, and the fineness of metal mesh or plastic mesh is 0.01mm-5mm.

[0041] The gas entering the interior of the respirator moves upwards and...

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Abstract

The invention discloses a respirator for a gear case, belonging to the hydraulic field. The respirator is mainly used for preventing liquid in the gear case from spilling out and has a filtering function on outside gaseous pollutant particles so as to effectively prevent the liquid in the gear case from being polluted. The respirator comprises a respirator cover, a filter core, a filter plate, a locating shaft, oil baffles, a respirator body and an oil stopping net. The respirator for the gear case is characterized in that the respirator body is internally provided with one or more oil baffles, and the adjacent oil baffles are crossed mutually in the certain angle theta, thus the oil-foam breakage and the oil-gas separation of gas expired from the interior of the gear case are realized bythe special structure design of the oil stopping net, the oil baffles and the filter plate, and the respirator has a function of preventing the oil from spilling out. The respirator is arranged at the gear case, thus the respirator can further effectively prevent the oil from spilling out, besides being used for filtering gas and balancing a pressure, and does not ensure that the gas pressure in the gear case is increased. The respirator disclosed by the invention has the advantages of simple structure, convenience for installation, low manufacture cost and easy maintenance, and is suitable for wide application.

Description

technical field [0001] The invention belongs to the field of hydraulic pressure, and in particular relates to a respirator used in a transmission box. Background technique [0002] In the fluid transmission or lubrication system, it is used as a container for storing medium for the system, because the change of the liquid level in the container will produce a breathing effect, that is, during the working process, the liquid level in the container will rise or fall, when the liquid level rises The gas above the liquid level in the container will be discharged, and the gas outside the container will enter the container when the liquid level drops. If you work in a better environment, the respirator can solve the breathing problem of the container. If you work in a harsh environment, the container must be sealed in addition to breathing to prevent the liquid in the container from splashing and the external gas from entering the container. Contamination by the liquid in it. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/027B01D50/00
Inventor 顾宏弢杨波黄宏游韩颜莹胡万林
Owner CHINA NORTH VEHICLE RES INST
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