CN101514560B - Method for controlling fast discharge of rotary drill rig - Google Patents
Method for controlling fast discharge of rotary drill rig Download PDFInfo
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- CN101514560B CN101514560B CN2009100428850A CN200910042885A CN101514560B CN 101514560 B CN101514560 B CN 101514560B CN 2009100428850 A CN2009100428850 A CN 2009100428850A CN 200910042885 A CN200910042885 A CN 200910042885A CN 101514560 B CN101514560 B CN 101514560B
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- variable displacement
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Abstract
The invention discloses a method for controlling fast discharge of a rotary drilling rig. The method comprises the following steps: connecting an oil tank (1), a hydraulic main pump (2), a feedback variable displacement pump (3), a throttle path (6), a reversing valve coupling (7) and an actuator (8) of a hydraulic system of the rotary drilling rig according to process requirements; directly communicating pressure oil from the hydraulic main pump (2) with an variable displacement Ls hole of a feedback variable displacement pump (3) by a pressure flow controller and an oil tube (4); increasing variable displacement feedback pressure of the feedback variable displacement pump (3) at initial stage, and expediting a variable displacement response speed of the feedback variable displacement pump (3) when the reversing valve coupling (7) operates. Increased variable displacement speed of the feedback variable displacement pump (3) expedites pressure rise of the variable displacement Ls hole of the feedback variable displacement pump (3) and response of the whole system action. The pressure flow controller is an electromagnetic shut-off valve (5). The method for controlling fast discharge of a rotary drilling rig has simple structure, reliable performance and high response speed.
Description
Technical field
The present invention relates to a kind of method of controlling fast discharge of rotary drill rig.
Background technology
The oil pump that adopts on the hydraulic system of Spiral digging machine is the feedback variable pump, the fuel tank of the hydraulic system of Spiral digging machine, hydraulic pressure main pump, feedback variable pump, throttling passage, reversal valve connection are connected by technological requirement with executing agency, Spiral digging machine is when taking the rotating unit head to switch the mode of throwing soil, the variable reaction time of feedback variable pump is that the key factor that soil impacts is thrown in influence, common way is the variable by the number of winning the confidence control feedback variable pump in the reversal valve connection of control unit head rotation, its response speed is influenced by the throttling of this passage so, and reaction speed is slower.
Summary of the invention
Technical problem to be solved by this invention provides the method for the fast control fast discharge of rotary drill rig of a kind of simple in structure, dependable performance, reaction speed.
In order to solve the problems of the technologies described above, the method of control fast discharge of rotary drill rig provided by the invention, the fuel tank of the hydraulic system of Spiral digging machine, the hydraulic pressure main pump, the feedback variable pump, throttling passage, the reversal valve connection is connected by technological requirement with executing agency, the pressure oil of described hydraulic pressure main pump directly is communicated with the variables L s mouth of control feedback variable pump by pressure flow control device and oil pipe, improve the feedback pressure of the variable of feedback variable pump in the starting stage, when the reversal valve interlock is done, accelerate the variable response speed of feedback variable pump, the raising of the variable speed of feedback variable pump, quickened the raising of pressure of the variables L s mouth of feedback variable pump, the reaction of whole system action is accelerated.
Described pressure flow control device is an electromagnetic shut-off valve.
The device of the reaction speed of the raising load feedback pump of employing technique scheme, the pressure oil of hydraulic pressure main pump directly is communicated with the variables L s mouth of control feedback pump, improved the feedback pressure of the variable of feedback variable pump like this in the starting stage, when main valve events, thereby accelerated the variable response speed of feedback variable pump, again because the raising of the variable speed of feedback variable pump, quickened the raising of pressure of the variables L s mouth of feedback variable pump again, the reaction of whole system action is accelerated.
In sum, the present invention is the method for the fast control fast discharge of rotary drill rig of a kind of simple in structure, dependable performance, reaction speed.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, fuel tank 1, hydraulic pressure main pump 2, feedback variable pump 3, throttling passage 6, reversal valve connection 7 and executing agency 8 are connected by technological requirement, and the outlet of hydraulic pressure main pump 2 is passed through oil pipe 4 and is connected with the variables L s mouth of feedback variable pump 3 with electromagnetic shut-off valve 5.
Referring to Fig. 1, the variables L s mouth that exports to feedback variable pump 3 of hydraulic pressure main pump 2 links by oil pipe 4 and electromagnetic shut-off valve 5, before reversal valve joins 7 action launchings commutation, switch the variables L s mouth that exports to feedback variable pump 3 that is communicated with hydraulic pressure main pump 2 with electromagnetic shut-off valve 5, like this because the oil pressure of the outlet of hydraulic pressure main pump 2 does not just directly feed back to the variables L s mouth of feedback variable pump 3 by reversal valve connection 7 and throttling passage 6, after the reversal valve of controlling executing agency 8 so joins 7 action launchings, the response speed of feedback variable pump 2 will be faster than the system of this device not, the pressure of the acceleration of executing agency 8 is raise, improved reaction speed.
Directly be not communicated to the variables L s mouth of feedback variable pump 3 revolving the pressure oil that digs the outlet of hydraulic pressure main pump 2, and the control device that adds the pressure of variables L s mouth of various control feedback variable pumps 3 and flow on this path all belongs to the protection domain of this patent by the reversal valve connection 7 of control unit head rotation.
Claims (2)
1. method of controlling fast discharge of rotary drill rig, the fuel tank of the hydraulic system of Spiral digging machine (1), hydraulic pressure main pump (2), feedback variable pump (3), throttling passage (6), reversal valve connection (7) is connected by technological requirement with executing agency (8), it is characterized in that: the pressure oil of described hydraulic pressure main pump (2) directly is communicated with the variables L s mouth of control feedback variable pump (3) by pressure flow control device and oil pipe (4), improve the feedback pressure of the variable of feedback variable pump (3) in the starting stage, when reversal valve connection (7) action, accelerate the variable response speed of feedback variable pump (3), the raising of the variable speed of feedback variable pump (3), quickened the raising of pressure of the variables L s mouth of feedback variable pump (3), the reaction of whole system action is accelerated.
2. the method for control fast discharge of rotary drill rig according to claim 1 is characterized in that: described pressure flow control device is electromagnetic shut-off valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100428850A CN101514560B (en) | 2009-03-18 | 2009-03-18 | Method for controlling fast discharge of rotary drill rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100428850A CN101514560B (en) | 2009-03-18 | 2009-03-18 | Method for controlling fast discharge of rotary drill rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514560A CN101514560A (en) | 2009-08-26 |
| CN101514560B true CN101514560B (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100428850A Active CN101514560B (en) | 2009-03-18 | 2009-03-18 | Method for controlling fast discharge of rotary drill rig |
Country Status (1)
| Country | Link |
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| CN (1) | CN101514560B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564883B (en) * | 2014-12-31 | 2016-08-24 | 北京市三一重机有限公司 | Pressurizing loop, auxiliary circuit, rotary drilling rig hydraulic system and rotary drilling rig |
| CN104563856B (en) * | 2015-01-15 | 2016-08-24 | 山河智能装备股份有限公司 | Fast discharge of rotary drill rig control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2784568Y (en) * | 2005-03-14 | 2006-05-31 | 徐州东明机械制造有限公司 | Gear shifting mechanism for power head of rotary drilling rig |
| CN1831250A (en) * | 2005-03-07 | 2006-09-13 | 徐州工程机械科技股份有限公司徐工研究院 | Construction technology of dry soil taking hole forming method of rotary digging drilling machine |
| CN2883497Y (en) * | 2006-04-12 | 2007-03-28 | 中南大学 | Automatic soil throwing controller of rotary digging drill |
-
2009
- 2009-03-18 CN CN2009100428850A patent/CN101514560B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831250A (en) * | 2005-03-07 | 2006-09-13 | 徐州工程机械科技股份有限公司徐工研究院 | Construction technology of dry soil taking hole forming method of rotary digging drilling machine |
| CN2784568Y (en) * | 2005-03-14 | 2006-05-31 | 徐州东明机械制造有限公司 | Gear shifting mechanism for power head of rotary drilling rig |
| CN2883497Y (en) * | 2006-04-12 | 2007-03-28 | 中南大学 | Automatic soil throwing controller of rotary digging drill |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平4-285302A 1992.10.09 |
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| Publication number | Publication date |
|---|---|
| CN101514560A (en) | 2009-08-26 |
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