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Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine

A control system and pressure control technology, applied in the direction of drill pipe, drill pipe, casing, etc., can solve the problem of harmful force on the hose, and achieve the effect of improving the service life, solving the interference of rotation, and reducing the impact and shaking.

Active Publication Date: 2012-10-31
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The opposite phenomenon of the rotation of the coiled tubes on both sides is very harmful to the stress on the hose

Method used

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  • Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine
  • Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine
  • Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine

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Embodiment Construction

[0031] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0034] combine first figure 1 and figure 2 Describe in detail the hyd...

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Abstract

The invention provides a hydraulic reel-pipe control system, comprising a first reel-pipe motor, a first reel, a second reel-pipe motor, a second reel, a pressure oil source, a reel-pipe control valve group, a detection unit and a controller, wherein the first reel-pipe motor is connected to the first reel; the second reel-pipe motor is connected to the second reel; pressure oil provided by the pressure oil source is introduced to the P opening of the reel-pipe control valve group through an inlet oil way; the T opening of the reel-pipe control valve group is communicated with an oil return way; the first working opening of the reel-pipe control valve group is connected with the first oil inlet of the first reel-pipe motor and the second oil inlet of the second reel-pipe motor; the second working opening of the reel-pipe control valve group is connected with the second oil inlet of the first reel-pipe motor and the first oil inlet of the second reel-pipe motor; the reel-pipe control valve group is used for regulating a pressure of the pressure oil output from the first working opening and the second working opening according to an electric signal of the controller; the detection unit is used for detecting depth variation data of a working device; and the controller is used for generating the electric signal for controlling the reel-pipe control valve group according to the depth variation data. The pressure of a reel-pipe changes proportionally as the lowering depth increases. The invention further provides a continuous wall grab bucket and a chambering drilling machine.

Description

technical field [0001] The invention relates to the technical field of hydraulic coil control, in particular to a hydraulic coil control system, a diaphragm wall grab and a reaming drill. Background technique [0002] Deep foundation pile machinery such as the present diaphragm wall grab bucket and reaming drilling rig all need to transport two rubber hoses and working devices deep into the ground for construction operations at the same time. There are two kinds of hose reels: spring hose reel and hydraulic hose reel. Since the spring hose reel is limited by the spring, the mechanical digging depth or reaming depth will be limited. Therefore, more and more hydraulic hose reels are used in deep foundation pile machinery. There are two main control forms of hydraulic hose reels: constant tension hose reel control system and variable force hose reel control system. Whether it is a constant tension coil control system or a variable force coil control system, there is a problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H75/42B65H75/44E02F5/14E21B19/22F15B11/22
Inventor 杨东升余晓军许慧
Owner SANY HEAVY IND CO LTD (CN)
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