Valve-controlled automatic confluence hydraulic system for horizontal directional drilling machine
A technology of horizontal directional drilling rig and hydraulic system, which is applied to the automatic control system of drilling, directional drilling, mechanical equipment, etc. It can solve the problem that the system cannot make full use of favorable resources, and achieve reduced quantity, good reliability and easy operation. Effect
Active Publication Date: 2011-10-19
南通堂润机械有限公司
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Problems solved by technology
Such as the basic clamp pump, push-pull pump, walking pump, when the clamp clamps the drill bit, the clamp pump drives the clamp mechanism to work, and when the drill bit is working, the push-pull pump drives the push-pull device of the power head to make the drill bit advance and retreat. When the overall movement is required, the travel motor is driven by the travel pump to move the horizontal directional drilling rig. When the push-pull device of the power head or the travel motor is running, the clamps and other working mechanisms are generally idle, so the clamps that supply oil to the clamps and other working mechanisms The pump is in an empty state, resulting in the system not being able to make full use of favorable resources
Method used
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[0016] like figure 1 As shown, the valve-controlled automatic merging hydraulic system of the horizontal directional drilling rig of the present invention includes a travel pump 13, a travel motor control valve 22, a push-pull pump 15, a push-pull cylinder control valve 21, a clamp pump 16, a clamp multi-way valve 18, and a hydraulic system It also includes a three-position six-way reversing valve 17, a hydraulic control reversing valve 19, a one-way valve I12 and a one-way valve II20. Traveling motor control valve, push-pull oil cylinder control valve, clamp multi-way valve are not invention points of the present invention, and their specific structures are not shown in the figure, only represented by square boxes.
[0017] The three-position six-way reversing valve 17 is arranged between the clamp pump 16 and the clamping multi-way valve 18, and the hydraulic control reversing valve 19 is provided with an oil inlet P, two oil outlets A, B and A control oil port Pi, the oil ...
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The invention discloses a valve-controlled automatic confluence hydraulic system for a horizontal directional drilling machine, and relates to a hydraulic control system for the horizontal directional drilling machine. The hydraulic system comprises a travel pump, a travel motor control valve, a push-pull pump, a push-pull oil cylinder control valve, a clamp pump, a clamp multi-way valve, a three-position six-way reversing valve, a hydraulic control reversing valve, a one-way valve I and a one-way valve II, wherein the three-position six-way reversing valve is arranged between the clamp pump and the clamp multi-way valve; the hydraulic control reversing valve is provided with an oil inlet, two oil outlets and a control oil port; the oil inlet of the hydraulic control reversing valve is connected with one oil outlet of the three-position six-way reversing valve; one oil outlet of the hydraulic control reversing valve is connected to the oil inlet of the travel motor control valve through the one-way valve I; the other oil outlet of the hydraulic control reversing valve is connected to the oil inlet of the push-pull oil cylinder control valve through the one-way valve II; and the control oil port of the hydraulic control reversing valve is also connected to the oil inlet of the travel motor control valve.
Description
technical field [0001] The invention relates to a hydraulic control system of a horizontal directional drilling rig, in particular to a hydraulic control system for a horizontal directional drilling rig that requires confluence. Background technique [0002] There are many working mechanisms of the horizontal directional drilling rig, which determines that the entire hydraulic system has multiple main pumps. Such as the basic clamp pump, push-pull pump, walking pump, when the clamp clamps the drill bit, the clamp pump drives the clamp mechanism to work, and when the drill bit is working, the push-pull pump drives the push-pull device of the power head to make the drill bit advance and retreat. When the overall movement is required, the travel motor is driven by the travel pump to move the horizontal directional drilling rig. When the push-pull device of the power head or the travel motor is running, the clamps and other working mechanisms are generally idle, so the clamps th...
Claims
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IPC IPC(8): E21B44/00E21B7/04F15B11/02F15B13/02
Inventor 玉有恩莫秀荣周旭明
Owner 南通堂润机械有限公司