CN102434513B - Integrated control hydraulic valve system for rock driller - Google Patents
Integrated control hydraulic valve system for rock driller Download PDFInfo
- Publication number
- CN102434513B CN102434513B CN201110345882.1A CN201110345882A CN102434513B CN 102434513 B CN102434513 B CN 102434513B CN 201110345882 A CN201110345882 A CN 201110345882A CN 102434513 B CN102434513 B CN 102434513B
- Authority
- CN
- China
- Prior art keywords
- control valve
- solenoid directional
- valve
- directional control
- filler opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011435 rock Substances 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims description 38
- 230000006698 induction Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 46
- 239000010720 hydraulic oil Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002199 base oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an integrated control hydraulic valve system for a rock driller, which is composed of a main valve body (14), six parallelly connected hydraulic valve control branches, an oil inlet opening (P), an oil return opening (T), a pressure measuring opening (M) and an overflow valve (1). The overflow valve (1) is serially connected between the oil inlet opening (P) and the oil return opening (T), and the pressure measuring opening (M) is connected close to the oil inlet opening (P). The six hydraulic valve control branches are respectively used for control of drilling arm location, drilling head location and driller operation during operation of the driller and control of the hydraulic system during unloading of a drill rod after the operation, and self-protection function of the system is achieved by configuring a pressure sensor. By simplifying the hydraulic valve control system of the driller, the integrated control hydraulic valve system improves reliability of the hydraulic system, is low in failure rate and good in universality, and the integrated design facilitates detection and debugging and greatly reduces manufacture cost of the hydraulic system simultaneously.
Description
Technical field
The present invention relates to a kind of integrated control hydraulic valve system of rock drilling machinery, particularly a kind of hydraulic valve system of machine-carried type rock drilling machine special carrier oil hydraulic pump fuel feeding.
Background technique
The hydraulic system of existing drill wagon for jack hammer or rig mostly is many oil pump feeds, and each executive component has controls hydrovalve separately, then is coupled together by pipeline, make whole hydraulic valve system stringing complexity, increase the liquid resistance of system, also increased the leakage point of oil circuit, the low resource of wasting again of Security.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency, and a kind of hydraulic valve system of integrated control is provided, and can realize the integrated control of hydrovalve.
The present invention solves the problems of the technologies described above with following technological scheme:
Integrated control hydraulic valve system for drilling machine for rock drilling of the present invention is made up of main valve body 14, the first hydrovalve control branch road A1B1, the second hydrovalve control branch road A2B2, the 3rd hydrovalve control branch road A3B3, the 4th hydrovalve control branch road A4B4, the 5th hydrovalve control branch road A5B5 and the 6th hydrovalve control branch road A6B6, oil inlet P, oil return inlet T, pressure tap M and relief valve 1; Described relief valve 1 is connected between oil inlet P and oil outlet T; Described pressure tap M is connected near oil inlet P; Described 6 hydrovalve control branch circuit parallel connections are between oil inlet P and oil return inlet T.
Described the first hydrovalve control branch road A1B1 is by the first series flow control valve 2, the first solenoid directional control valve 3, the second solenoid directional control valve 4 and throttle valve 15 form, wherein the first series flow control valve 2 is connected to the filler opening of the first solenoid directional control valve 3, the output terminal series throttle 15 of the first solenoid directional control valve 3 is held as A1, the output terminal of the first solenoid directional control valve 3 is connected with the output terminal of the second solenoid directional control valve 4 simultaneously, B1 end is connected with second oil outlet of solenoid directional control valve 4 and the oil return inlet T of system, the filler opening of the second solenoid directional control valve 4 is connected with first filler opening of solenoid directional control valve 3 and the oil inlet P of system, described the second hydrovalve control branch road A2B2 is by the second series flow control valve 52, the 3rd solenoid directional control valve 6, the first pressure transducer 72 and the first relief valve 16 form, wherein the second series flow control valve 52 is connected to the filler opening of the 3rd solenoid directional control valve 6, the output terminal of the 3rd solenoid directional control valve 6 connects the first pressure transducer 72, and a filler opening that is connected to the first relief valve 16 is held as A2, another output terminal of the 3rd solenoid directional control valve 6 is connected with the filler opening of the first relief valve 16, and hold as B2, the oil outlet of the 3rd solenoid directional control valve 6 and the first relief valve 16 is received the oil return inlet T of system, described the 3rd hydrovalve control branch road A3B3 is by the 3rd series flow control valve 53, proportional pressure control valve 8, the 4th solenoid directional control valve 9, the 4th series flow control valve 10, the second pressure transducer 73, the 5th solenoid directional control valve 113 and equilibrium valve 12 form, wherein the 3rd series flow control valve 53 is connected to the filler opening of the 4th solenoid directional control valve 9, two output terminals of the 4th solenoid directional control valve 9 are connected to the filler opening of the 5th solenoid directional control valve 113 after the 4th series flow control valve 10 short circuits, after being connected with the second pressure transducer 73, holds as A3 an output terminal of the 5th solenoid directional control valve 113, after being connected with proportional pressure control valve 8 again, links at A3 end the oil return inlet T of system, another output terminal of the 5th solenoid directional control valve 113 is held as B3 after being connected with equilibrium valve 12, the induction end of equilibrium valve 12 and A3 end short circuit, the 5th oil outlet of solenoid directional control valve 113 and the oil return inlet T of system are connected, described the 4th hydrovalve control branch road A4B4 is by the second relief valve 171, the 3rd relief valve 172, the 6th solenoid directional control valve 114 and the first cartridge throttle valve 134 form, wherein the first cartridge throttle valve 134 is connected to the filler opening of the 6th solenoid directional control valve 114, after being connected with the second relief valve 171, holds as A4 an output terminal of the 6th solenoid directional control valve 114, another output terminal of the 6th solenoid directional control valve 114 is held as B4 after being connected with the 3rd relief valve 172, the oil outlet of the output terminal of the second relief valve 171 and the 6th solenoid directional control valve 114 is connected respectively to the oil return inlet T of system, described the 5th hydrovalve control branch road A5B5 is made up of the 7th solenoid directional control valve 115 and the second cartridge throttle valve 135, wherein the second cartridge throttle valve 135 is connected to the filler opening of the 7th solenoid directional control valve 115, two output terminals of the 7th solenoid directional control valve 115 are respectively as A5 and B5 end, and the 7th oil outlet of solenoid directional control valve 115 and the oil return inlet T of system are connected, described the 6th hydrovalve control branch road A6B6 is made up of the 8th solenoid directional control valve 116 and the 3rd cartridge throttle valve 136, wherein the 3rd cartridge throttle valve 136 is connected to the filler opening of the 8th solenoid directional control valve 116, two output terminals of the 8th solenoid directional control valve 116 are respectively as A6 and B6 end, and the 8th oil outlet of solenoid directional control valve 116 and the oil return inlet T of system are connected.
Compared with the valve group of the present invention and common rock drilling machine hydraulic system, reliability greatly improves, and fault ratio of hydraulic pressure system is low, and versatility is good, integrated integrated convenient detection and debugging, and pipeline is simplified simultaneously, and hydraulic system manufacture cost cost also reduces greatly.
Brief description of the drawings
Fig. 1 is the schematic diagram of integrated control hydraulic valve system for drilling machine for rock drilling of the present invention.
In figure: 1-direct-acting overflow valve, the 2-the first series flow control valve, the 3-the first solenoid directional control valve, the 4-the second solenoid directional control valve, the 52-the second series flow control valve, the 53-the three series flow control valve, the 6-the three solenoid directional control valve, the 72-the first pressure transducer, the 73-the second pressure transducer, 8-proportional pressure control valve, the 9-the four solenoid directional control valve, the 10-the four series flow control valve, the 113-the five solenoid directional control valve, the 114-the six solenoid directional control valve, the 115-the seven solenoid directional control valve, the 116-the eight solenoid directional control valve, 12-equilibrium valve, the 134-the first cartridge throttle valve, the 135-the second cartridge throttle valve, the 136-the three cartridge throttle valve, 14-main valve body, 15-throttle valve, the 16-the first relief valve, the 171-the second relief valve, the 172-the three relief valve.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Integrated control hydraulic valve system for drilling machine for rock drilling of the present invention is made up of main valve body 14,6 hydrovalve control branch road A1B1, A2B2, A3B3, A4B4, A5B5 and A6B6, oil inlet P, oil return inlet T, pressure tap M and relief valves 1.As shown in Figure 1, described relief valve 1 is connected between oil inlet P and oil outlet T, and the oil pump feed of carrier enters hydraulic valve bank from oil inlet P.In the time that rig is not also started working, each road solenoid directional control valve is in closed condition, and hydraulic oil returns to fuel tank from relief valve 1 through oil return inlet T.
Described branch road A1B1 is made up of the first series flow control valve 2, the first solenoid directional control valve 3, the second solenoid directional control valve 4 and throttle valve 15, wherein the first series flow control valve 2 is connected to the filler opening of the first solenoid directional control valve 3, the output terminal series throttle 15 of the first solenoid directional control valve 3 is held as A1, the output terminal of the first solenoid directional control valve 3 is connected with the output terminal of the second solenoid directional control valve 4 simultaneously, B1 end is connected with second oil outlet of solenoid directional control valve 4 and the oil return inlet T of system, and the filler opening of the second solenoid directional control valve 4 is connected with first filler opening of solenoid directional control valve 3 and the oil inlet P of system.
Described branch road A2B2 is made up of the second series flow control valve 52, the 3rd solenoid directional control valve 6, the first pressure transducer 72 and the first relief valve 16, wherein series flow control valve 52 is connected to the filler opening of the 3rd solenoid directional control valve 6, the output terminal of the 3rd solenoid directional control valve 6 connects the first pressure transducer 72, and a filler opening that is connected to the first relief valve 16 is held as A2, another output terminal of the 3rd solenoid directional control valve 6 is connected with the filler opening of the first relief valve 16, and as B2 end, the oil outlet of the 3rd solenoid directional control valve 6 and the first relief valve 16 is received the oil return inlet T of system.
Described branch road A3B3 is by the 3rd series flow control valve 53, proportional pressure control valve 8, the 4th solenoid directional control valve 9, the 4th series flow control valve 10, the second pressure transducer 73, the 5th solenoid directional control valve 113 and equilibrium valve 12 form, wherein the 3rd series flow control valve 53 is connected to the filler opening of the 4th solenoid directional control valve 9, two output terminals of the 4th solenoid directional control valve 9 are connected to the filler opening of the 5th solenoid directional control valve 113 after the 4th series flow control valve 10 short circuits, output terminal of the 5th solenoid directional control valve 113 and the second pressure transducer 73, proportional pressure control valve 8 is linked the oil return inlet T of system after connecting successively, another output terminal of the 5th solenoid directional control valve 113 is held as B2 after being connected with equilibrium valve 12, the induction end of equilibrium valve 12 and A3 end short circuit, the 5th oil outlet of solenoid directional control valve 113 and the oil return inlet T of system are connected.
Described branch road A4B4 is made up of the second relief valve 171, the 3rd relief valve 172, the 6th solenoid directional control valve 114 and the first cartridge throttle valve 134, wherein throttle valve 134 is connected to the filler opening of the 6th solenoid directional control valve 114, after being connected with the second relief valve 171, holds as A4 an output terminal of the 6th solenoid directional control valve 114, after another output terminal of the 6th solenoid directional control valve 114 is connected with the 3rd relief valve 172, as B4 end, the oil outlet of the output terminal of the second relief valve 171 and the 6th solenoid directional control valve 114 is connected respectively to the oil return inlet T of system.
Described branch road A5B5 is made up of the 7th solenoid directional control valve 115 and the second cartridge throttle valve 135, wherein throttle valve 135 is connected to the filler opening of the 7th solenoid directional control valve 115, two output terminals of the 7th solenoid directional control valve 115 are respectively as A5 and B5 end, and the 7th oil outlet of solenoid directional control valve 115 and the oil return inlet T of system are connected.
Described branch road A6B6 is made up of the 8th solenoid directional control valve 116 and the 3rd cartridge throttle valve 136, wherein throttle valve 136 is connected to the filler opening of the 8th solenoid directional control valve 116, two output terminals of the 8th solenoid directional control valve 116 are respectively as A6 and B6 end, and the 8th oil outlet of solenoid directional control valve 116 and the oil return inlet T of system are connected.
Rig working procedure is as follows: when rig is prepared while starting working, if rig drill boom is while needing swing location, when the 6th solenoid directional control valve 114 left side magnet energising of A4B4 branch road, spool switches left accordingly; When the 6th solenoid directional control valve 114 the right magnet are switched on, spool switches to the right accordingly, and hydraulic oil enters the activity of motor driving drill boom by the first cartridge throttle valve 134.In the time of superpressure, the second relief valve 171 and the 3rd relief valve 172 play the effect of dividing potential drop earial drainage.
If rig drill boom need to swing while location, when the 7th solenoid directional control valve 115 left side magnet of A5B5 branch road are switched on, spool switches left accordingly; When the 7th solenoid directional control valve 115 the right magnet are switched on, spool switches to the right accordingly, and hydraulic oil enters the activity of oil cylinder pushing drill boom by the second cartridge throttle valve 135.
When locating, drill boom need perforate at the moment, the first solenoid directional control valve 3 of A1B1 branch road obtains electric, hydraulic oil enters beater mechanism through throttle valve 2, the first solenoid directional control valve 3 and throttle valve 15, gently impacts rock, ensures that drill bit can be in the rock layer surface location that needs tapping.
When drill bit has been located, when rig is started working, the 5th solenoid directional control valve 113 of the second solenoid directional control valve 4 of A1B1 branch road, the 3rd solenoid directional control valve 6 of A2B2 branch road, A3B3 branch road simultaneously electric, wherein A1B1 bypass valve group realizes hydraulic oil supply shock mechanism, A2B2 bypass valve group realizes hydraulic oil is supplied with to rotating machinery, and A3B3 bypass valve group realizes hydraulic oil is supplied with to driving mechanism.As shown in Figure 1, A1 place hydraulic oil enters beater mechanism through throttle valve 15; The hydraulic oil at A2 place enters rotating machinery through the second series flow control valve 52; A3 place hydraulic oil enters driving mechanism through the 3rd series flow control valve 53, the 4th series flow control valve 10 and equilibrium valve 12.
This integrated control hydraulic valve system has possessed self-protection system function.The A2B2 branch road of system is equipped with the first pressure transducer 72, can prevent rotating machinery hydraulic system superpressure.In the time that the first pressure transducer 72 detects pressure superelevation, can realize shunting pressure release by the first relief valve 16.Install the second pressure transducer 73 additional at A3B3 branch road, coordinate automatical control system can realize automatic anti-blocking pricker function simultaneously.In the time that the second pressure transducer 73 detects pressure superelevation, automatical control system regulates feeding system pressure size by control ratio relief valve 8, prevents that card pricker from occurring.
When rig completes boring, need to unload drill steel time, the 8th solenoid directional control valve 116 left sides of A6B6 branch road or the energising of the right magnet, spool switches accordingly to the left or to the right, hydraulic oil enters clamping bar oil cylinder by the 3rd cartridge throttle valve 136 and clamps drill steel, unloads bar action thereby realize.
The present invention, by simplifying the hydrovalve control system of rig, has improved the reliability of hydraulic system, failure rate is low, and versatility is good, and integrated design is convenient to be detected and debugging, also greatly reduces hydraulic system manufacture cost simultaneously.
Claims (1)
1. an integrated control hydraulic valve system for drilling machine for rock drilling, it is characterized in that, it is by main valve body (14), the first hydrovalve control branch road (A1B1), the second hydrovalve control branch road (A2B2), the 3rd hydrovalve control branch road (A3B3), the 4th hydrovalve control branch road (A4B4), the 5th hydrovalve control branch road (A5B5) and the 6th hydrovalve control branch road (A6B6), filler opening (P), return opening (T), pressure tap (M) and relief valve (1) composition, described relief valve (1) is connected between filler opening (P) and return opening (T), described pressure tap (M) is connected near filler opening (P), above-mentioned six hydrovalve control branch circuit parallel connections are between filler opening (P) and oil outlet (T), described the first hydrovalve control branch road (A1B1) is by the first series flow control valve (2), the first solenoid directional control valve (3), the second solenoid directional control valve (4) and throttle valve (15) composition, wherein the first series flow control valve (2) is connected to the filler opening of the first solenoid directional control valve (3), the output terminal series throttle (15) of the first solenoid directional control valve (3) is held as A1, the output terminal of the first solenoid directional control valve (3) is connected with the output terminal of the second solenoid directional control valve (4) simultaneously, B1 end is connected with the oil outlet of the second solenoid directional control valve (4) and the return opening (T) of system, the filler opening of the filler opening of the second solenoid directional control valve (4) and the first solenoid directional control valve (3) is connected with the filler opening (P) of system, described the second hydrovalve control branch road (A2B2) is by the second series flow control valve (52), the 3rd solenoid directional control valve (6), the first pressure transducer (72) and the first relief valve (16) composition, wherein the second series flow control valve (52) is connected to the filler opening of the 3rd solenoid directional control valve (6), the output terminal of the 3rd solenoid directional control valve (6) connects the first pressure transducer (72), and a filler opening that is connected to the first relief valve (16) is held as A2, another output terminal of the 3rd solenoid directional control valve (6) is connected with the filler opening of the first relief valve (16), and hold as B2, the oil outlet of the 3rd solenoid directional control valve (6) and the first relief valve (16) is received the return opening (T) of system, described the 3rd hydrovalve control branch road (A3B3) is by the 3rd series flow control valve (53), proportional pressure control valve (8), the 4th solenoid directional control valve (9), the 4th series flow control valve (10), the second pressure transducer (73), the 5th solenoid directional control valve (113) and equilibrium valve (12) composition, wherein the 3rd series flow control valve (53) is connected to the filler opening of the 4th solenoid directional control valve (9), two output terminals of the 4th solenoid directional control valve (9) are connected to the filler opening of the 5th solenoid directional control valve (113) after the 4th series flow control valve (10) short circuit, after being connected with the second pressure transducer (73), holds as A3 an output terminal of the 5th solenoid directional control valve (113), after being connected with proportional pressure control valve (8) again, links at A3 end the return opening (T) of system, another output terminal of the 5th solenoid directional control valve (113) is held as B3 after being connected with equilibrium valve (12), the induction end of equilibrium valve (12) and A3 end short circuit, the oil outlet of the 5th solenoid directional control valve (113) is connected with the return opening (T) of system, described the 4th hydrovalve control branch road (A4B4) is by the second relief valve (171), the 3rd relief valve (172), the 6th solenoid directional control valve (114) and the first cartridge throttle valve (134) composition, wherein the first cartridge throttle valve (134) is connected to the filler opening of the 6th solenoid directional control valve (114), after being connected with the second relief valve (171), holds as A4 an output terminal of the 6th solenoid directional control valve (114), another output terminal of the 6th solenoid directional control valve (114) is held as B4 after being connected with the 3rd relief valve (172), the oil outlet of the output terminal of the second relief valve (171) and the 6th solenoid directional control valve (114) is connected respectively to the return opening (T) of system, described the 5th hydrovalve control branch road (A5B5) is made up of the 7th solenoid directional control valve (115) and the second cartridge throttle valve (135), wherein the second cartridge throttle valve (135) is connected to the filler opening of the 7th solenoid directional control valve (115), two output terminals of the 7th solenoid directional control valve (115) are respectively as A5 and B5 end, and the oil outlet of the 7th solenoid directional control valve (115) is connected with the return opening (T) of system, described the 6th hydrovalve control branch road (A6B6) is made up of the 8th solenoid directional control valve (116) and the 3rd cartridge throttle valve (136), wherein the 3rd cartridge throttle valve (136) is connected to the filler opening of the 8th solenoid directional control valve (116), two output terminals of the 8th solenoid directional control valve (116) are respectively as A6 and B6 end, and the oil outlet of the 8th solenoid directional control valve (116) is connected with the return opening (T) of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110345882.1A CN102434513B (en) | 2011-11-04 | 2011-11-04 | Integrated control hydraulic valve system for rock driller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110345882.1A CN102434513B (en) | 2011-11-04 | 2011-11-04 | Integrated control hydraulic valve system for rock driller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434513A CN102434513A (en) | 2012-05-02 |
| CN102434513B true CN102434513B (en) | 2014-11-05 |
Family
ID=45982788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110345882.1A Active CN102434513B (en) | 2011-11-04 | 2011-11-04 | Integrated control hydraulic valve system for rock driller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434513B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777439B (en) * | 2012-07-17 | 2015-07-08 | 安徽铜冠机械股份有限公司 | Thrust cylinder control oil way for down-the-hole drill |
| CN102747949B (en) * | 2012-07-19 | 2014-06-11 | 山河智能装备股份有限公司 | Fast propulsion hydraulic control loop of down-the-hole drill rig |
| CN108612516B (en) * | 2018-06-07 | 2024-02-20 | 中国铁建重工集团股份有限公司 | Rock drilling machine and hydraulic control valve group thereof |
| CN110173483B (en) * | 2019-06-28 | 2024-01-23 | 北京三一智造科技有限公司 | Hydraulic system and rotary drilling rig |
| CN114688112B (en) * | 2022-04-21 | 2024-05-14 | 安百拓（南京）建筑矿山设备有限公司 | Automatic control system of hydraulic tapping machine of blast furnace and hydraulic tapping machine of blast furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995023276A1 (en) * | 1994-02-28 | 1995-08-31 | Tamrock Oy | Arrangement and method for controlling boom actuating cylinders in rock drilling equipment |
| CN2311605Y (en) * | 1997-11-13 | 1999-03-24 | 朱宏敏 | Drilling flat car three linkage control valve |
| CN201202474Y (en) * | 2008-06-04 | 2009-03-04 | 王向军 | Multifunctional full hydraulic chain groove type shoveling rock drill |
| CN201412150Y (en) * | 2009-06-22 | 2010-02-24 | 浙江志高机械有限公司 | Drilling machine integration hydraulic control system |
| CN202338523U (en) * | 2011-11-04 | 2012-07-18 | 广西恒日科技有限公司 | Integrated control hydraulic valve system for drilling machine for rock drilling |
-
2011
- 2011-11-04 CN CN201110345882.1A patent/CN102434513B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995023276A1 (en) * | 1994-02-28 | 1995-08-31 | Tamrock Oy | Arrangement and method for controlling boom actuating cylinders in rock drilling equipment |
| CN2311605Y (en) * | 1997-11-13 | 1999-03-24 | 朱宏敏 | Drilling flat car three linkage control valve |
| CN201202474Y (en) * | 2008-06-04 | 2009-03-04 | 王向军 | Multifunctional full hydraulic chain groove type shoveling rock drill |
| CN201412150Y (en) * | 2009-06-22 | 2010-02-24 | 浙江志高机械有限公司 | Drilling machine integration hydraulic control system |
| CN202338523U (en) * | 2011-11-04 | 2012-07-18 | 广西恒日科技有限公司 | Integrated control hydraulic valve system for drilling machine for rock drilling |
Non-Patent Citations (4)
| Title |
|---|
| 全液压凿岩台车工作机构液压系统的改进;叶子强;《有色设备》;19991030(第05期);全文 * |
| 凿岩台车液压系统及其故障诊断研究;薛成浩;《东北大学硕士论文》;20070705;第2章第2.3.2节工作装置定位系统，图2.6定位液压系统 * |
| 叶子强.全液压凿岩台车工作机构液压系统的改进.《有色设备》.1999,(第05期),全文. * |
| 薛成浩.凿岩台车液压系统及其故障诊断研究.《东北大学硕士论文》.2007,25-26. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102434513A (en) | 2012-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102434513B (en) | Integrated control hydraulic valve system for rock driller | |
| US8572957B2 (en) | Hydraulic system for construction equipment | |
| CN102011416B (en) | Hydraulic excavator flow rate control method and control loop | |
| CN106030124B (en) | The fluid pressure drive device of engineering machinery | |
| CN105350598B (en) | A kind of hydraulic control system and control method for improving loading machine energy saving | |
| CN103671364B (en) | Electrohydraulic control system is turned to for remote control loader | |
| CN103075101B (en) | Mining multi-logical protection loop and multi-linkage functional drill hydraulic system | |
| CN110469552B (en) | Hydraulic system and drilling rig | |
| CN102733442A (en) | Gyration energy recycling system of hydraulic excavator | |
| CN106284481A (en) | Determine varying load sensitivity combining hydraulic system and loader | |
| CN104564885A (en) | High-integration bidirectional rotary valve for pilot control mode | |
| CN102767207A (en) | Excavator boom energy regenerating device and boom energy regenerating valve block thereof | |
| CN106104010A (en) | Control valve device | |
| CN202338523U (en) | Integrated control hydraulic valve system for drilling machine for rock drilling | |
| CN104454737B (en) | Sheet multiway valve hydraulic system used for mini excavator | |
| CN104389579A (en) | Rotating and boosting EHC (Electric Hydraulic Control) method of rock drilling machine and control circuit for realizing rotating and boosting EHC method | |
| CN104405006B (en) | Loading machine semi-variety hydraulic system | |
| CN105723100B (en) | Control system and low pressure the selection loop of engineering machinery | |
| CN103669462A (en) | Mixed-type hydraulic device | |
| CN202788607U (en) | Rock drilling key action double-pump hydraulic control loop for cutting drill | |
| CN105317767A (en) | Rotational speed limitation device for motor | |
| CN104675766A (en) | Hydraulic buffering system | |
| CN101691876B (en) | Single-pump multi-motor hydraulic system and method for preventing idle rotation of motors | |
| JP2005195131A (en) | Construction machine | |
| CN104613040B (en) | A kind of serial-parallel motor rotary system Fill valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 530045 the Guangxi Zhuang Autonomous Region City, Nanning Branch Park East Road, No. 6, No. 1 industrial workshop, production workshop, No. twelve Patentee after: GUANGXI HENGRI SCIENCE & TECHNOLOGY CO., LTD. Address before: 530045 the Guangxi Zhuang Autonomous Region, Nanning manhole Avenue, No. 96 Patentee before: Guangxi Hengri Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 530000 room 711, building a, Jiangnan Shangcheng, South China City, Nanning, Guangxi Zhuang Autonomous Region Patentee after: GUANGXI HENGRI SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 530045 workshop 1, No.6 industrial building, Keyuan east 12th Road, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI HENGRI TECHNOLOGY Co.,Ltd. |