CN213684736U - Pipe pushing machine control system with constant push-pull force - Google Patents
Pipe pushing machine control system with constant push-pull force Download PDFInfo
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- CN213684736U CN213684736U CN202022517923.8U CN202022517923U CN213684736U CN 213684736 U CN213684736 U CN 213684736U CN 202022517923 U CN202022517923 U CN 202022517923U CN 213684736 U CN213684736 U CN 213684736U
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Abstract
The utility model provides a push away tub machine control system with invariable push-and-pull power, includes pump and hydro-cylinder, is equipped with the switching-over valve between pump and the hydro-cylinder, and the switching-over valve is connected with the proportion overflow valve of steerable switching-over valve pressure value, is equipped with the balanced valve between switching-over valve and the hydro-cylinder, and the big cavity junction of balanced valve and hydro-cylinder is equipped with pressure sensor I and pressure sensor II respectively. The utility model discloses bright push-and-pull pipe machine control system with invariable push-and-pull power, the pressure value in the hydro-cylinder size chamber that records through the sensor, the value of adjusting reversing valve and proportion overflow valve realizes that the push-and-pull power maintains the invariable thrust of settlement, and this system can realize the push-and-pull hydro-cylinder under the condition of no longer than settlement push-and-pull to the fastest speed work keeps settlement push-and-pull power value to await the order under the push-and-pull is obstructed the condition.
Description
Technical Field
The utility model relates to a directional drilling machine drags a tub construction equipment technical field, specifically is a push away tub machine control system with invariable push-and-pull power.
Background
The core working condition and the pipe dragging of the construction of the horizontal directional drilling machine are that the pipe dragging resistance is too large in the pipe dragging process, the dragging force of the directional drilling machine is not enough or the tensile strength of the pipe cannot meet the pipe dragging resistance, so that the pipe dragging failure is caused.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a simple structure, respond well have the push-and-pull pipe pusher control system of invariable push-and-pull power.
The utility model discloses a realize with following technical scheme: the utility model provides a push away tub of machine control system with invariable push-and-pull power, includes pump and hydro-cylinder, be equipped with the switching-over valve between pump and the hydro-cylinder, the switching-over valve is connected with the proportional overflow valve of steerable switching-over valve pressure value, be equipped with the balanced valve between switching-over valve and the hydro-cylinder, the big small chamber junction of balanced valve and hydro-cylinder is equipped with pressure sensor I and pressure sensor II respectively, be connected with the stroke tester on the hydro-cylinder, still include the controller, pressure sensor I, pressure sensor II, stroke tester, proportional overflow valve and switching-over valve are connected to the controller.
It further comprises the following steps: the reversing valve is an electric proportional control valve.
And the proportional overflow valve is connected with the Ls end of the reversing valve.
And the stroke tester is connected with a piston rod and a cylinder body of the oil cylinder.
The utility model has the advantages of it is following: the utility model discloses bright push-and-pull pipe machine control system with invariable push-and-pull power, the pressure value in the hydro-cylinder size chamber that records through the sensor, the value of adjusting reversing valve and proportion overflow valve realizes that the push-and-pull power maintains the invariable thrust of settlement, and this system can realize the push-and-pull hydro-cylinder under the condition of no longer than settlement push-and-pull to the fastest speed work keeps settlement push-and-pull power value to await the order under the push-and-pull is obstructed the condition.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: 1. The device comprises an oil cylinder 2, pressure sensors I and 3, pressure sensors II and 4, a balance valve 5, a proportional overflow valve 6, a reversing valve 7 and a pump.
Detailed Description
The pipe pushing machine control system with the constant push-pull force comprises a pump 7 and an oil cylinder 1, wherein a reversing valve 6 is arranged between the pump 7 and the oil cylinder 1, the reversing valve 6 is connected with a proportional overflow valve 5 capable of controlling the pressure value of the reversing valve 6, a balance valve 4 is arranged between the reversing valve 6 and the oil cylinder 1, and the joints of the balance valve 4 and a large cavity and a small cavity of the oil cylinder 1 are respectively provided with a pressure sensor I2 and a pressure sensor II 3, and the pipe pushing machine control system further comprises a controller which is connected with the pressure sensor I2, the pressure sensor II 3, the proportional overflow valve 5 and the reversing valve 6. The utility model discloses a push tube machine control system with invariable push-and-pull force, which comprises a pump, the switching-over valve, the proportion overflow valve, the balance valve, sensor and hydro-cylinder, the pump is connected with the switching-over valve, the pressure value of port of proportion overflow valve control switching-over valve, the balance valve is connected with the switching-over valve, the hydro-cylinder links to each other with the balance valve, two pressure sensor link to each other with the big size chamber of hydro-cylinder, entire system mainly is according to the push-and-pull force value of settlement and two pressure sensor's value, the current value of dynamic settlement switching-over valve and electric proportion overflow valve, thereby guarantee. For example, a push-pull force set value TL0 is obtained according to a push-pull force set knob, a pressure value Ph of a high-pressure cavity of a push-pull oil cylinder is inversely calculated according to the push-pull force set value, a proportional pressure limiting valve current I0 is calculated according to Ph, an initial value is given to a proportional pressure limiting valve (5), a current value is given to a reversing valve (6) according to an input value of a push-pull handle, an oil cylinder push-pull force TL1 is calculated according to a pressure sensor I (2) and a pressure sensor II (3), TL1 and TL0 are compared, the proportional pressure limiting valve current value is corrected until the difference between TL1 and TL0 reaches an allowable range.
In a control system of a pipe pushing machine with constant push-pull force as shown in fig. 1, the reversing valve 6 is an electric proportional control valve. And the proportional overflow valve 5 is connected with the Ls end of the reversing valve 6.
Claims (3)
1. A push away tub machine control system with invariable push-pull force which characterized in that: including pump (7) and hydro-cylinder (1), be equipped with switching-over valve (6) between pump (7) and hydro-cylinder (1), switching-over valve (6) are connected with proportional overflow valve (5) of steerable switching-over valve (6) pressure value, be equipped with between switching-over valve (6) and hydro-cylinder (1) balanced valve (4), balanced valve (4) are equipped with pressure sensor I (2) and pressure sensor II (3) respectively with the big or small chamber junction of hydro-cylinder (1), still include the controller, pressure sensor I (2), pressure sensor II (3), proportional overflow valve (5) and switching-over valve (6) are connected to the controller.
2. A control system for a pipe pusher with constant push-pull force as defined in claim 1, wherein: the reversing valve (6) is an electric proportional control valve.
3. A control system for a pipe pusher with constant push-pull force as defined in claim 1, wherein: and the proportional overflow valve (5) is connected with the Ls end of the reversing valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022517923.8U CN213684736U (en) | 2020-11-04 | 2020-11-04 | Pipe pushing machine control system with constant push-pull force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022517923.8U CN213684736U (en) | 2020-11-04 | 2020-11-04 | Pipe pushing machine control system with constant push-pull force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213684736U true CN213684736U (en) | 2021-07-13 |
Family
ID=76727474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022517923.8U Active CN213684736U (en) | 2020-11-04 | 2020-11-04 | Pipe pushing machine control system with constant push-pull force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213684736U (en) |
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2020
- 2020-11-04 CN CN202022517923.8U patent/CN213684736U/en active Active
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