Static pressure balancing device of transmission case

A technology of static pressure balance and transmission box, which is applied in the field of transmission box, and can solve problems such as damage to the transmission box and affecting the construction process

Inactive Publication Date: 2010-02-03
BEIJING SANY HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If no corresponding technical measures are taken, it will cause serious damage to the transmission box, which will greatly affect the construction process

Method used

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  • Static pressure balancing device of transmission case
  • Static pressure balancing device of transmission case

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Embodiment Construction

[0020] The core of the present invention is to provide a transmission box static pressure balancing device, which can keep the internal and external pressure of the transmission box roughly balanced under the condition that the liquid pressure medium has a relatively high pressure and continues to change.

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] This article will take the continuous wall double-wheel milling machine as an example, and the liquid pressure medium will take mud as an example to illustrate the technical effect of the static pressure balancing device provided by the present invention; of course, the static pressure balancing device is not only suitable for Diaphragm wall double-wheel milling machine is obviously also applicable to other types...

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PUM

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Abstract

The invention discloses a static pressure balancing device of a transmission case, which is used for improving internal and external pressure imbalance of the transmission case (13) when a liquid pressure medium works. The static pressure balancing device comprises a gas pressure balancing pipe (11) which is communicated with an inner cavity (131) of the transmission case (13) and a gas conveyingdevice (12) which is communicated with the gas pressure balancing pipe (11); a downward exhaust port (111) is formed at the bottom end of the gas pressure balancing pipe (11); when only the residual gas is overflowed form the exhaust port (111) and external liquid can not immerse into the gas pressure balancing pipe (11) by maintaining through the control of flow rate and pressure of gas sent by the gas conveying device (12) and sent into the gas pressure balancing pipe (11), the gas pressure in the gas pressure balancing pipe (11) and the fluid pressure at the exhaust port (111) are balanced;and when the installation heights of the exhaust port (111) and the transmission case (13) are equivalent, the pressure of the inner cavity is basically equivalent to the that of an outer cavity of the transmission case (13).

Description

technical field [0001] The invention relates to the technical field of a transmission box working in a liquid pressure medium, in particular to a static pressure balancing device for a transmission box. Background technique [0002] With the promotion of technological progress, the degree of mechanization of foundation construction and underground engineering construction is increasing. Mechanization has not only doubled the construction efficiency, but also greatly improved the working environment and safety. [0003] In many mechanical excavation constructions involving foundation and underground engineering, in order to stabilize the trench wall (or hole wall) after excavation and prevent the problem of hole collapse and buried drilling that endangers the operation safety and the accuracy of the trench (hole) formation, it is generally The construction method of mud wall protection is adopted: that is, high specific gravity mud suspension is added to the working slot, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H57/02
Inventor 黎中银朱道升
Owner BEIJING SANY HEAVY MASCH CO LTD
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