CN103437752B - A kind of for the long-range hydraulic control system of coal mine gallery drilling rig - Google Patents
A kind of for the long-range hydraulic control system of coal mine gallery drilling rig Download PDFInfo
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- CN103437752B CN103437752B CN201310416225.0A CN201310416225A CN103437752B CN 103437752 B CN103437752 B CN 103437752B CN 201310416225 A CN201310416225 A CN 201310416225A CN 103437752 B CN103437752 B CN 103437752B
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- reversing valve
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Abstract
The invention discloses a kind of for the long-range hydraulic control system of coal mine gallery drilling rig, comprise load sensitive pump, hydraulic control LS banked direction control valves, pressure sensor, feed oil cylinder, rotary motor, proportional reversing valve, reducing valve, strainer, cooler.Load sensitive pump exit position is provided with pressure sensor, load sensitive pump is connected with hydraulic control LS banked direction control valves oil-in, the control port of hydraulic control LS banked direction control valves is connected with proportional reversing valve, hydraulic control LS banked direction control valves connects respectively and feeds oil cylinder and rotary motor, is connected with reducing valve between load sensitive pump and proportional reversing valve.Patent design of the present invention is a kind of is used for coal mine gallery drilling rig long-range hydraulic control system, adopt the mode that domestic proportional reversing valve and external hydraulic control LS banked direction control valves combine, on the basis making full use of external LS banked direction control valves premium properties, solve coal mine gallery drilling rig Long-distance Control problem.
Description
Technical field
The invention belongs to coal mine gallery drilling rig field, be specifically related to a kind of for the long-range hydraulic control system of coal mine gallery drilling rig.
Background technology
At present, the mine safety that China uses is masked as MA, and international safety of coal mines is masked as EX, and the product not having MA to indicate with EX mark and equipment cannot use in China's coal-mine.For objects such as intellectual property protection, the electric-hydraulic proportion LS banked direction control valves of external Hydraulic Elements manufacturer function admirable not application China MA pacifies mark, therefore cannot use in colliery at home.Because domestic electric-hydraulic proportion LS banked direction control valves performance cannot meet the use needs of coal mine gallery drilling rig, thus coal mine gallery drilling rig Long-distance Control is made to be difficult to realize, for addressing this problem, devise a kind of for the long-range hydraulic control system of coal mine gallery drilling rig, domestic proportional reversing valve and external hydraulic control LS banked direction control valves is used to combine, both take full advantage of the performance that external LS banked direction control valves is excellent, solve again coal mine gallery drilling rig Long-distance Control problem.
Summary of the invention
For the problems referred to above, the object of the invention is to propose one for the long-range hydraulic control system of coal mine gallery drilling rig, to realize utilizing external function admirable LS banked direction control valves to realize the object of coal mine gallery drilling rig Long-distance Control.
For achieving the above object, the technical solution used in the present invention is:
A kind of for the long-range hydraulic control system of coal mine gallery drilling rig, comprise load sensitive pump, hydraulic control LS banked direction control valves, pressure sensor, feed oil cylinder, rotary motor, proportional reversing valve, reducing valve, strainer, cooler.
Described load sensitive pump oil-out is connected with hydraulic control LS banked direction control valves oil-in, and load sensitive pump LS mouth is connected with hydraulic control LS banked direction control valves LS mouth, and load sensitive pump oil-out is provided with pressure sensor;
Described hydraulic control LS banked direction control valves oil-out respectively with feed oil cylinder, rotary motor is connected, hydraulic control LS banked direction control valves hydraulic control mouth is connected with proportional reversing valve oil-out respectively.
Reducing valve is connected between load sensitive pump and proportional reversing valve.
A kind of for the long-range hydraulic control system of coal mine gallery drilling rig, due to domestic electro-hydraulic proportion reversing valve and the hydraulic circuit that combines of external hydraulic control LS banked direction control valves with MA mark, thus the electromagnetism LS banked direction control valves solving external function admirable cannot use in colliery at home, and limit the problem that domestic coal mine gallery realizes Long-distance Control.
Accompanying drawing explanation
Fig. 1 is used for the long-range hydraulic control system schematic diagram of coal mine gallery drilling rig.
Wherein, 1 is load sensitive pump; 2 is hydraulic control LS banked direction control valves: 3-5 is pressure sensor; 6 is feed oil cylinder; 7 is unit head rotary motors; 8 is reducing valve; 9 and 10 is proportional reversing valves; 11 is coolers; 12 and 13 is strainers.
Detailed description of the invention
Below in conjunction with accompanying drawing preferable examples of the present invention will be described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Embodiment 1
As shown in Figure 1, a kind of for the long-range hydraulic control system of coal mine gallery drilling rig, comprise load sensitive pump, hydraulic control LS banked direction control valves, pressure sensor, feed oil cylinder, rotary motor, proportional reversing valve, reducing valve, strainer, cooler.Reducing valve is connected between load sensitive pump and proportional reversing valve, and for proportional reversing valve provides pressure oil, hydraulic control LS banked direction control valves pilot control is controlled by proportional reversing valve.
When coal mine gallery drilling rig does not work, two proportional reversing valves work in meta, and hydraulic control LS banked direction control valves two guide hydraulic fluid port power oil with no pressure provides, therefore hydraulic control LS banked direction control valves works in meta, load sensitive pump operating pressure is maximum, and flow is zero, feeds oil cylinder and rotary motor is failure to actuate.
During coal mine gallery drilling rig work, under computer remote controls, two proportional reversing valve actions, now load-sensitive pump discharge pressure reduces, the action of load sensitive pump corresponding mechanism, pump discharge increases, and hydraulic oil flows through reducing valve, proportional reversing valve enters the corresponding guide's hydraulic fluid port of hydraulic control LS banked direction control valves, and the action of hydraulic control LS banked direction control valves feeds oil cylinder and rotary motor performs corresponding actions.
A kind of for the long-range hydraulic control system of coal mine gallery drilling rig, adopt domestic have coal peace MA mark electro-hydraulic proportion reversing valve and external hydraulic control LS banked direction control valves combine, achieve the Long-distance Control of coal mine gallery drilling rig, to the technical development of China's coal-mine underground drill rig, there is promotion meaning.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection scope of the present invention.
Claims (1)
1. one kind for the long-range hydraulic control system of coal mine gallery drilling rig, it is characterized in that: comprise load sensitive pump (1), hydraulic control LS banked direction control valves (2), first pressure sensor (3), second pressure sensor (4), 3rd pressure sensor (5), feed oil cylinder (6), unit head rotary motor (7), reducing valve (8), first proportional reversing valve (9), second proportional reversing valve (10), cooler (11), first strainer (12) and the second strainer (13), the oil-out of described load sensitive pump (1) is connected with the oil-in of hydraulic control LS banked direction control valves (2), the LS mouth of load sensitive pump (1) is connected with the LS mouth of hydraulic control LS banked direction control valves (2), the oil-out of load sensitive pump (1) is provided with the first pressure sensor (3), the oil-out of hydraulic control LS banked direction control valves (2) respectively with feed oil cylinder (6), rotary motor (7) is connected, the hydraulic control mouth of hydraulic control LS banked direction control valves (2) is connected with the oil-out of the first proportional reversing valve (9) and the second proportional reversing valve (10) respectively, described reducing valve (8) is connected to load sensitive pump (1) and between the first proportional reversing valve (9) and the second proportional reversing valve (10), the pilot control of described hydraulic control LS banked direction control valves (2) is controlled by the first proportional reversing valve (9) and the second proportional reversing valve (10), when starting shooting, the opening amount of the first proportional reversing valve (9) and the second proportional reversing valve (10) is non-vanishing, described reducing valve (8) is connected to load sensitive pump (1) and between the first proportional reversing valve (9) and the second proportional reversing valve (10), be that the first proportional reversing valve (9) and the second proportional reversing valve (10) provide pressure oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416225.0A CN103437752B (en) | 2013-09-12 | 2013-09-12 | A kind of for the long-range hydraulic control system of coal mine gallery drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416225.0A CN103437752B (en) | 2013-09-12 | 2013-09-12 | A kind of for the long-range hydraulic control system of coal mine gallery drilling rig |
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| Publication Number | Publication Date |
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| CN103437752A CN103437752A (en) | 2013-12-11 |
| CN103437752B true CN103437752B (en) | 2015-10-21 |
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| CN201310416225.0A Active CN103437752B (en) | 2013-09-12 | 2013-09-12 | A kind of for the long-range hydraulic control system of coal mine gallery drilling rig |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179383A (en) * | 2015-09-28 | 2015-12-23 | 北汽福田汽车股份有限公司 | Engineering machinery, hydraulic system for constant displacement pump of engineering machinery and controlling method of hydraulic system |
| CN108612477B (en) * | 2018-05-06 | 2019-12-03 | 安徽科恒电力科技有限公司 | Truck-mounted drilling rig device |
| CN112431822B (en) * | 2020-11-26 | 2023-04-07 | 江苏徐工工程机械研究院有限公司 | Quick response pressure detection hydraulic system and pressure detection system |
| CN114215799B (en) * | 2022-02-21 | 2022-05-10 | 徐州徐工环境技术有限公司 | Load-sensitive constant-power hydraulic system for vertical pressing station |
| CN117570084A (en) * | 2023-11-25 | 2024-02-20 | 中国煤炭科工集团太原研究院有限公司 | Electro-hydraulic control system and method for self-adaptive stepless speed regulation of drilling machine |
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| CN101122233A (en) * | 2007-08-08 | 2008-02-13 | 煤炭科学研究总院西安研究院 | Caterpillar belt self-walking type tunnel drilling rig hydraulic system |
| CN101858368A (en) * | 2010-05-13 | 2010-10-13 | 山东泰丰液压设备有限公司 | Multiple directional control valve system for return oil throttle control with load sensitive pressure compensation |
| CN201606091U (en) * | 2010-01-27 | 2010-10-13 | 三一重型装备有限公司 | Hydraulic device for controlling power of anchor bolt of tunneling machine |
| CN201722074U (en) * | 2010-07-16 | 2011-01-26 | 徐州重型机械有限公司 | Crane and load sensing hydraulic control system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4237901C2 (en) * | 1992-11-10 | 1996-02-01 | Heilmeier & Weinlein | Electro-hydraulic control device and pressure reducing valve |
| JPH10266274A (en) * | 1997-03-27 | 1998-10-06 | Hitachi Constr Mach Co Ltd | Hydraulic circuit device of construction machine |
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2013
- 2013-09-12 CN CN201310416225.0A patent/CN103437752B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122233A (en) * | 2007-08-08 | 2008-02-13 | 煤炭科学研究总院西安研究院 | Caterpillar belt self-walking type tunnel drilling rig hydraulic system |
| CN201606091U (en) * | 2010-01-27 | 2010-10-13 | 三一重型装备有限公司 | Hydraulic device for controlling power of anchor bolt of tunneling machine |
| CN101858368A (en) * | 2010-05-13 | 2010-10-13 | 山东泰丰液压设备有限公司 | Multiple directional control valve system for return oil throttle control with load sensitive pressure compensation |
| CN201722074U (en) * | 2010-07-16 | 2011-01-26 | 徐州重型机械有限公司 | Crane and load sensing hydraulic control system thereof |
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| CN103437752A (en) | 2013-12-11 |
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