CN102373925A - Double height adjusting system for coal cutter - Google Patents
Double height adjusting system for coal cutter Download PDFInfo
- Publication number
- CN102373925A CN102373925A CN2010102502396A CN201010250239A CN102373925A CN 102373925 A CN102373925 A CN 102373925A CN 2010102502396 A CN2010102502396 A CN 2010102502396A CN 201010250239 A CN201010250239 A CN 201010250239A CN 102373925 A CN102373925 A CN 102373925A
- Authority
- CN
- China
- Prior art keywords
- pump box
- coal
- hand
- winning machine
- operated direction
- 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.)
- Pending
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
A double height adjusting system for a coal cutter comprises two height adjusting pump boxes, two identical hydraulic transmission systems, two hand-operated reversing valves and two height adjusting oil cylinders so as to control left and right rocking arms of the coal cutter. The invention is characterized in that the two height adjusting pump boxes can respectively control their respective hydraulic transmission systems so as to adjust the height of the left and right rocking arms of the coal cutter under normal operating conditions; and if there is any malfunction of one of the two height adjusting pump boxes and/or its corresponding hydraulic transmission system, the height adjusting pump box and its corresponding hydraulic transmission system which are not malfunctioning can be used to control the left and the right rocking arms of the coal cutter.
Description
Technical field:
The present invention relates to the coal-winning machine technical field, particularly a kind of two height-adjusting systems of rocker arm of coal mining machine that are used for.
Background technology:
As shown in Figure 1, existing coal-winning machine is heightened, the brake fluid pressure transmission system is to heighten the braking with coal-winning machine of heightening that pump box 1 and a cover Hydraulic Power Transmission System are controlled left and right rocking arm by one.Because technology such as the main hydraulic monomer hand, pilot operated directional control valve or the hand that use, hydraulic control multiple directional control valve, electromagnetic valve fall behind, the size of valve is big, and the integrated level level is low, causes the pump box volume big, is difficult to realize the independent control of left and right rocking arm.Because ambient conditions is abominable under the coal mine, above-mentioned valve class in use, fault rate is higher, in case break down, can not realize quick reparation at mining face under mine, has both caused whole coal-winning machine stopping accident.Existing coal-winning machine is heightened when hydraulic braking system can not be realized left and right rocking arm, and influences the service efficiency of coal-winning machine.
Summary of the invention:
To heightening the shortcoming and defect with the braking of coal-winning machine of heightening that pump box and a cover Hydraulic Power Transmission System are controlled left and right rocking arm by one in the prior art; The present invention proposes the two height-adjusting systems of a kind of coal-winning machine; It has two and heightens pump box and identical Hydraulic Power Transmission System, two hand-operated direction valves and two adjust high cylinders of two covers; So that the left and right rocking arm of coal-winning machine is realized control; It is characterized in that, in normal operation, heighten pump box for two and can control each self-corresponding Hydraulic Power Transmission System respectively separately to realize heightening to the left and right rocking arm of coal-winning machine; When two are heightened one of pump box and/or its corresponding Hydraulic Power Transmission System and break down, can use do not break down heighten pump box with its corresponding Hydraulic Power Transmission System to the left and right rocking arm of coal-winning machine with advancing to realize control.
Wherein said two to heighten pump box be that a left side is heightened pump box 6 and the right side and heightened 7, two hand-operated direction valves of pump box and be respectively hand-operated direction valve 8 and be respectively left adjust high cylinder 2 and left adjust high cylinder 3 with 9, two adjust high cylinders of hand-operated direction valve.Be connected in a part of pipeline of heightening in a plurality of pipelines of pump box 6 on a said left side and be communicated with left adjust high cylinder 2, and another part pipeline in said a plurality of pipeline is communicated with right adjust high cylinder 3 through hand-operated direction valve 9 through hand-operated direction valve 8; Equally, be connected in a part of pipeline of heightening in a plurality of pipelines of pump box 7 on the said right side and be communicated with right adjust high cylinder 3, and another part pipeline in said a plurality of pipeline is communicated with right adjust high cylinder 2 through hand-operated direction valve 8 through hand-operated direction valve 9
In normal operation, said left adjust high cylinder 2 is by heightening the pipeline driving that pump box 6 is communicated with through a hand-operated direction valve 8 and a said left side, and said right adjust high cylinder 3 is by heighten the pipeline driving that pump box 7 is communicated with through the hand-operated direction valve 9 and the said right side.When a said left side is heightened pump box 6 and/or the Hydraulic Power Transmission System corresponding with it and broken down,, make left adjust high cylinder 2 and right adjust high cylinder 3 heighten pump box 7 and the Hydraulic Power Transmission System corresponding with it drives by the right side through regulating hand-operated direction valve 8.When the said right side is heightened pump box 7 and/or the Hydraulic Power Transmission System corresponding with it and broken down,, make right adjust high cylinder 3 and left adjust high cylinder 2 heighten pump box 6 and the Hydraulic Power Transmission System corresponding with it drives by a left side through regulating hand-operated direction valve 9.
Wherein heighten pump box 6,7 and hand-operated direction valve 8, also have the manual electrichydraulic control multiple directional control valve 12,13 of can and close that passes through that is used to realize any pipeline between 9 respectively for two.Said hand-operated direction valve is two six logical hand-operated direction valves.
The two height-adjusting systems of said coal-winning machine also comprise left brake 4 and right brake 5; Wherein left brake 4 is controlled by left stop valve 10 and right stop valve 11 with right brake 5; Realizing that left brake 4 heightens any one perforation of pump box 6,7 and cut out with left and right, and control right brake 5 and heighten any one perforation of pump box 6,7 and close with left and right.Said left and right heighten pump box 6,7 have 4 pipelines that are used to drive respectively.
The present invention realizes replacing with a pump box repertoire of two pump boxs through above-mentioned technological means, and coal-winning machine is worked as usual, produced coal.Awaiting Overhaul class repairs or the fault pump box is split out ground and repairs, and does not influence the normal use of coal-winning machine, has improved the coal output of coal-winning machine greatly.
Description of drawings:
Fig. 1: the dull high system works sketch map of coal-winning machine in the prior art;
Fig. 2: the two height-adjusting system coal-winning machine sketches of coal-winning machine of the present invention;
Fig. 3: the two height-adjusting system operating principle sketches of coal-winning machine of the present invention;
Fig. 4: the two height-regulating hydraulic system schematic diagrams of coal-winning machine of the present invention;
Fig. 5: the manual electrichydraulic control multiple directional control valve sketch map of the two height-adjusting systems of coal-winning machine of the present invention;
Fig. 6: the hand-operated direction valve sketch map of the two height-adjusting systems of coal-winning machine of the present invention.
Reference numeral: 1-heightens pump box; 2-left side adjust high cylinder; The right adjust high cylinder of 3-; 4-left side brake; The right brake of 5-; 6-heightens pump box in a left side; 7-heightens pump box in the right side; The 8-hand-operated direction valve; The 9-hand-operated direction valve; 10-left side stop valve; The right stop valve of 11-; The manual electrichydraulic control multiple directional control valve of 12-; The manual electrichydraulic control multiple directional control valve of 13-.
The specific embodiment:
Coal-winning machine of the present invention is heightened, coal-winning machine of brake fluid pressure transmission adopted is identically heightened the independent control that pump box and two cover identical Hydraulic Power Transmission Systems and elements are realized the left and right rocking arm of coal-winning machine is heightened by two, realizes that promptly left and right rocking arm can operate simultaneously.Simultaneously, every cover Hydraulic Power Transmission System has the ability with the braking of coal-winning machine of heightening of the left and right rocking arm of control, therefore, when being broken down by a cover system, need not shutdown maintenance, only through switching valve, utilizes another set of system control coal-winning machine, does not influence production.
The two height-adjusting system coal-winning machine sketches of Fig. 2 coal-winning machine of the present invention, as shown in Figure 2, flitting is controlled hydraulic jack to realize heightening rocker arm of coal mining machine through the pump box of heightening that is arranged in the coal-winning machine main body.It wherein shown in the figure MG2 * 200/925-AWD type coal-winning machine that two height-adjusting systems are used one of type.
Fig. 3 is the two height-adjusting system operating principle sketches of coal-winning machine of the present invention, and Fig. 4 is the two height-regulating hydraulic system schematic diagrams of coal-winning machine of the present invention.Shown in Fig. 3 and 4; Coal-winning machine of the present invention is two to be heightened, the brake fluid pressure transmission system comprises the left and right pump box 6,7 of heightening; Correspond respectively to left and right two manual electrichydraulic control multiple directional control valves 12,13 heightening pump box 6,7,4,5, two hand-operated direction valves 8,9 of left and right brake; Left and right adjust high cylinder 2,3, and left and right stop valve 10,11.Wherein, Be connected in a left side and heighten the a1 of pump box 6, b1 pipeline and be connected in that the c2 of pump box 7 is heightened on the right side, the d2 pipeline is communicated with left adjust high cylinder 2 through hand-operated direction valve 8, can select to use a1, b1 pipeline or use c2, d2 pipeline to be communicated with left adjust high cylinder 2 through hand-operated direction valve 8; Equally; Be connected in the right side and heighten the c1 of pump box 7, d1 pipeline and be connected in that the a2 of pump box 6 is heightened on a left side, the b2 pipeline is communicated with right adjust high cylinder 3 through hand-operated direction valve 9, can select to use c1, d1 pipeline or use a2, b2 pipeline to be communicated with right adjust high cylinder 3 through hand-operated direction valve 9.
Under normal mode of occupation: be connected in that the a1 of pump box 6 is heightened on a left side, the b1 pipeline is communicated with left adjust high cylinder 2; Be connected in the right side and heighten the c1 of pump box 7, right adjust high cylinder 3 connections of d1 pipeline, independently control heightening of left and right rocking arm respectively by two cover systems; A perforation in the left and right stop valve, another stop valve is closed, by the braking of one of them height-adjusting system control coal-winning machine.When one of pump box is heightened and/or its corresponding Hydraulic Power Transmission System breaks down in a left side (right side); Needn't shut down emergency treatment, break down, can through hand-operated direction valve 8 c2, d2 pipeline are communicated with left adjust high cylinder 2 simply as heightening pump box 6 when a left side; Simultaneously; Right stop valve 11 connects, and left stop valve 10 is closed, by the braking of right height-adjusting system control coal-winning machine; Otherwise, heighten pump box 7 like the right side and break down, can through hand-operated direction valve 9 a2, b2 pipeline be communicated with right adjust high cylinder 3 simply, simultaneously, left stop valve 10 connects, and right stop valve 11 is closed, by the braking of left height-adjusting system control coal-winning machine.Through such mode, realize replacing the repertoire of two pump boxs with a pump box, coal-winning machine is worked as usual, is produced coal.Awaiting Overhaul class repairs or the fault pump box is split out ground and repairs, and does not influence the normal use of coal-winning machine, has improved the coal output of coal-winning machine greatly.
Manual electrichydraulic control multiple directional control valve 12,13 as shown in Figure 4; Said manual electrichydraulic control multiple directional control valve 12,13 is selected advanced, the integrated pile-up valve group high, that volume is little of the technical quality that can buy on the market for use; Fig. 5 shows the structural representation of manual electrichydraulic control multiple directional control valve; Wherein multiple directional control valve and solenoid electric valve are integrated in one; Can realize the perforation of any pipeline and close, improve integration greatly and reduced volume, thereby two pump boxs of coal-winning machine equipment are achieved.Fig. 6 is the sketch map of two the six logical hand-operated direction valves that the present invention adopted; It can change the perforation of pipeline wherein and close; When some pump boxs break down, can realize realizing the braking with coal-winning machine of heightening to the left and right rocking arm of coal-winning machine by the height-adjusting system of another one operate as normal through hand-operated direction valve.
Though the present invention is described with reference to a plurality of embodiment; But the present invention is not limited to the foregoing description; Be to be understood that those skilled in the art can carry out the suitable new embodiment that is combined to form to the parts that relate in the foregoing description, various tangible modification of on the basis that does not break away from the principle of the invention, carrying out and variation all should fall within protection scope of the present invention.
Claims (10)
1. two height-adjusting systems of a coal-winning machine; It has two and heightens pump box and identical Hydraulic Power Transmission System, two hand-operated direction valves and two adjust high cylinders of two covers; So that the left and right rocking arm of coal-winning machine is realized control; It is characterized in that, in normal operation, heighten pump box for two and can control each self-corresponding Hydraulic Power Transmission System respectively separately to realize heightening to the left and right rocking arm of coal-winning machine; When two are heightened one of pump box and/or the Hydraulic Power Transmission System corresponding with it and break down, can use do not break down heighten pump box with its corresponding Hydraulic Power Transmission System to the left and right rocking arm of coal-winning machine with advancing to realize control.
2. the two height-adjusting systems of coal-winning machine as claimed in claim 1; It is characterized in that; Said two to heighten pump box be that a left side is heightened pump box 6 and the right side and heightened 7, two hand-operated direction valves of pump box and be respectively hand-operated direction valve 8 and be respectively left adjust high cylinder 2 and left adjust high cylinder 3 with 9, two adjust high cylinders of hand-operated direction valve.
3. the two height-adjusting systems of coal-winning machine as claimed in claim 2; It is characterized in that; Be connected in a part of pipeline of heightening in a plurality of pipelines of pump box 6 on a said left side and be communicated with left adjust high cylinder 2, and another part pipeline in said a plurality of pipeline is communicated with right adjust high cylinder 3 through hand-operated direction valve 9 through hand-operated direction valve 8; Equally, be connected in a part of pipeline of heightening in a plurality of pipelines of pump box 7 on the said right side and be communicated with right adjust high cylinder 3, and another part pipeline in said a plurality of pipeline is communicated with right adjust high cylinder 2 through hand-operated direction valve 8 through hand-operated direction valve 9.
4. the two height-adjusting systems of coal-winning machine as claimed in claim 3; It is characterized in that; In normal operation; Said left adjust high cylinder 2 is by heightening the pipeline driving that pump box 6 is communicated with through a hand-operated direction valve 8 and a said left side, said right adjust high cylinder 3 is by heighten the pipeline driving that pump box 7 is communicated with through the hand-operated direction valve 9 and the said right side.
5. the two height-adjusting systems of coal-winning machine as claimed in claim 3; It is characterized in that; When a said left side is heightened pump box 6 and/or the Hydraulic Power Transmission System corresponding with it and is broken down; Through regulating hand-operated direction valve 8, make left adjust high cylinder 2 and right adjust high cylinder 3 heighten pump box 7 and the Hydraulic Power Transmission System driving corresponding with it by the right side.
6. the two height-adjusting systems of coal-winning machine as claimed in claim 3; It is characterized in that; When the said right side is heightened pump box 7 and/or the Hydraulic Power Transmission System corresponding with it and is broken down; Through regulating hand-operated direction valve 9, make right adjust high cylinder 3 and left adjust high cylinder 2 heighten pump box 6 and the Hydraulic Power Transmission System driving corresponding with it by a left side.
7. like the two height-adjusting systems of the described coal-winning machine of one of claim 2-6; It is characterized in that, wherein heighten pump box 6,7 and hand-operated direction valve 8, also have the manual electrichydraulic control multiple directional control valve 12,13 of can and close that passes through that is used to realize any pipeline between 9 respectively for two.
8. like the two height-adjusting systems of the described coal-winning machine of one of claim 2-6, it is characterized in that said hand-operated direction valve is two six logical hand-operated direction valves.
9. like the two height-adjusting systems of the described coal-winning machine of one of claim 1-6; It is characterized in that; Also comprise left brake 4 and right brake 5; Wherein left brake 4 and right brake 5 be by left stop valve 10 and right stop valve 11 controls, heightens any one perforation of pump box 6,7 and close with left and right to realize left brake 4, and control right brake 5 and heighten any one perforation of pump box 6,7 and close with left and right.
10. like the two height-adjusting systems of the described coal-winning machine of one of claim 3-6, it is characterized in that, said left and right heighten pump box 6,7 have 4 pipelines that are used to drive respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102502396A CN102373925A (en) | 2010-08-11 | 2010-08-11 | Double height adjusting system for coal cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102502396A CN102373925A (en) | 2010-08-11 | 2010-08-11 | Double height adjusting system for coal cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102373925A true CN102373925A (en) | 2012-03-14 |
Family
ID=45793090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102502396A Pending CN102373925A (en) | 2010-08-11 | 2010-08-11 | Double height adjusting system for coal cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102373925A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372808A (en) * | 2018-10-10 | 2019-02-22 | 三重型装备有限公司 | Height-adjustment hydraulic system for coal mining machine, coalcutter and complete set of equipments system |
| CN110778550A (en) * | 2019-11-29 | 2020-02-11 | 山西潞安集团余吾煤业有限责任公司 | Emulsion hydraulic system of coal mining machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2919499A1 (en) * | 1979-05-15 | 1980-11-20 | Bergwerksverband Gmbh | Drum-type coal cutter regulation system - compares forces acting on tools with limits to adjust drum height |
| CN2594462Y (en) * | 2002-10-31 | 2003-12-24 | 峰峰矿务局机械总厂 | Drum coal-mining machines for low seam |
| CN201428454Y (en) * | 2009-06-16 | 2010-03-24 | 辽源煤矿机械制造有限责任公司 | Low coal seam coal cutter capable of cutting ferric sulfide concretion |
| CN201448109U (en) * | 2009-07-21 | 2010-05-05 | 西安煤矿机械有限公司 | Heavy-duty coal mining machine arranged on heightening cylinders |
| CN201826840U (en) * | 2010-08-11 | 2011-05-11 | 西安煤矿机械有限公司 | Double-heightening system of coal-winning machine |
-
2010
- 2010-08-11 CN CN2010102502396A patent/CN102373925A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2919499A1 (en) * | 1979-05-15 | 1980-11-20 | Bergwerksverband Gmbh | Drum-type coal cutter regulation system - compares forces acting on tools with limits to adjust drum height |
| CN2594462Y (en) * | 2002-10-31 | 2003-12-24 | 峰峰矿务局机械总厂 | Drum coal-mining machines for low seam |
| CN201428454Y (en) * | 2009-06-16 | 2010-03-24 | 辽源煤矿机械制造有限责任公司 | Low coal seam coal cutter capable of cutting ferric sulfide concretion |
| CN201448109U (en) * | 2009-07-21 | 2010-05-05 | 西安煤矿机械有限公司 | Heavy-duty coal mining machine arranged on heightening cylinders |
| CN201826840U (en) * | 2010-08-11 | 2011-05-11 | 西安煤矿机械有限公司 | Double-heightening system of coal-winning machine |
Non-Patent Citations (1)
| Title |
|---|
| 王先锋: "MG2×132/630-WD采煤机液压制动与调高系统设计", 《煤矿机械》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372808A (en) * | 2018-10-10 | 2019-02-22 | 三重型装备有限公司 | Height-adjustment hydraulic system for coal mining machine, coalcutter and complete set of equipments system |
| CN110778550A (en) * | 2019-11-29 | 2020-02-11 | 山西潞安集团余吾煤业有限责任公司 | Emulsion hydraulic system of coal mining machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105383473A (en) | Air brake valve for locomotive | |
| CN201826840U (en) | Double-heightening system of coal-winning machine | |
| CN102390401B (en) | Controlling device capable of automatically cutting off train pipe and exhausting in case of undervoltage main blast line and control method | |
| CN110005649B (en) | Load-sensitive adjustable hydraulic system of drilling machine and drilling machine | |
| CN111498087B (en) | Electro-hydraulic servo actuator | |
| CN102632922A (en) | Dump truck for mine and steering brake control device thereof | |
| CN204387167U (en) | The hydraulic braking sytem that a kind of moment is controlled | |
| CN108557675A (en) | A kind of safety arrestment redundancy perseverance deceleration hydraulic station and its control method | |
| CN102373925A (en) | Double height adjusting system for coal cutter | |
| CN203362659U (en) | Load-sensitive controlled continuous-tube hydraulic system | |
| CN204942135U (en) | The control gear of excavator hydraulic system | |
| US8984875B2 (en) | Pump control operating system of construction machine | |
| CN104029722A (en) | Hydraulic steering system of engineering machine | |
| CN108238561A (en) | Safety arrestment series redundancy two-stage brake hydraulic station and its control method | |
| CN104442752A (en) | Braking power cut-off control system of walking machine | |
| CN205801087U (en) | A kind of driving drill carriage double circuit hydraulic braking system | |
| CN104019225A (en) | Hydrodynamic transmission control system | |
| CN104555772A (en) | Crane hoisting hydraulic system and crane | |
| CN108180187A (en) | Safety arrestment connection in series-parallel redundancy two-stage brake hydraulic station and its control method | |
| CN202149093U (en) | Electro-hydraulic control split multi-way valve | |
| CN204355027U (en) | The brake power cutting-off controlling system of walking machine | |
| CN103557208B (en) | Multi-level adjustable hydraulic oil cylinder | |
| CN202991712U (en) | Redundant-type hydraulic pressure station | |
| CN206988193U (en) | The electro-hydraulic speed change operating valve of multi function loader | |
| CN202673555U (en) | Electrohydraulic follow-up device for water turbine control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120314 |