CN201826840U - Double-heightening system of coal-winning machine - Google Patents
Double-heightening system of coal-winning machine Download PDFInfo
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- CN201826840U CN201826840U CN 201020287720 CN201020287720U CN201826840U CN 201826840 U CN201826840 U CN 201826840U CN 201020287720 CN201020287720 CN 201020287720 CN 201020287720 U CN201020287720 U CN 201020287720U CN 201826840 U CN201826840 U CN 201826840U
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Abstract
The utility model relates to a double-heightening system of a coal-winning machine, which is provided with two heightening pump boxes, two sets of identical hydraulic transmission systems, two hand-operated change valves and two heightening cylinders, so that a left rocker arm and a right rocker arm of the coal-winning machine can be controlled. The double-heightening system of the coal-winning machine is characterized in that during the normal working, the two heightening pump boxes can respectively and independently control the corresponding hydraulic transmission system so as to control the heightening of the left rocker arm and the right rocker arm of the coal-winning machine; when one of the heightening pump boxes and/or the corresponding hydraulic transmission system have (has) faults, and the heightening pump box which has no faults and the corresponding hydraulic transmission system can be used to control the left rocker arm and the right rocker arm of the coal-winning machine.
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 heightened 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.Lifting when existing coal-winning machine is heightened hydraulic braking system and can not be realized left and right rocking arm influences the service efficiency of coal-winning machine.
Summary of the invention:
At heightening a pump box and a cover Hydraulic Power Transmission System control left side by one in the prior art, right rocking arm heighten shortcoming and defect with the braking of coal-winning machine, the present invention proposes the two height-adjusting systems of a kind of coal-winning machine, it has two and heightens pump box and the identical Hydraulic Power Transmission System of two covers, two hand-operated direction valves, and two adjust high cylinders, with to a coal-winning machine left side, right rocking arm is realized control, it is characterized in that, in normal operation, heightening pump box for two can distinguish and control each self-corresponding Hydraulic Power Transmission System separately to realize a coal-winning machine left side, heightening of right rocking arm, 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 and its corresponding Hydraulic Power Transmission System to a coal-winning machine left side, right rocking arm is 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 that 7, two hand-operated direction valves of pump box are respectively hand-operated direction valve 8 and 9, two adjust high cylinders of hand-operated direction valve are respectively left adjust high cylinder 2 and left adjust high cylinder 3.Be connected in a part of pipeline of heightening in a plurality of pipelines of pump box 6 on a described left side and be communicated with left adjust high cylinder 2, and another part pipeline in described a plurality of pipeline is communicated with right adjust high cylinder 3 by hand-operated direction valve 9 by 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 described right side and be communicated with right adjust high cylinder 3, and another part pipeline in described a plurality of pipeline is communicated with right adjust high cylinder 2 by hand-operated direction valve 8 by hand-operated direction valve 9
In normal operation, described left adjust high cylinder 2 is by heightening the pipeline driving that pump box 6 is communicated with by a hand-operated direction valve 8 and a described left side, and described right adjust high cylinder 3 is by heighten the pipeline driving that pump box 7 is communicated with by the hand-operated direction valve 9 and the described right side.When a described 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 by regulating hand-operated direction valve 8.When the described 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 by regulating hand-operated direction valve 9.
Wherein heighten and 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 pump box 6,7 and the hand-operated direction valve 8,9 respectively for two.Described hand-operated direction valve is two six logical hand-operated direction valves.
The two height-adjusting systems of described coal-winning machine also comprise left brake 4 and right brake 5, wherein left brake 4 and right brake 5 are by left stop valve 10 and 11 controls of right stop valve, with realize left brake 4 with left and right heighten pump box 6,7 any one perforation and close, and control right brake 5 with left and right heighten pump box 6,7 any one perforation and close.Described 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 by 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 schematic diagram 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 schematic diagram of the two height-adjusting systems of coal-winning machine of the present invention;
Fig. 6: the hand-operated direction valve schematic diagram 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 heightened of the left and right rocking arm of control, therefore, when being broken down by a cover system, need not shutdown maintenance, only by 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 by 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, left and right brake 4,5, two hand-operated direction valves 8,9, 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 by 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 by 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 by 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 by 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 emergent management, break down as heightening pump box 6 when a left side, can by hand-operated direction valve 8 c2, d2 pipeline be communicated with left adjust high cylinder 2 simply, 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 as the right side and break down, can by 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.By 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, described manual electrichydraulic control multiple directional control valve 12,13 is selected the technical quality advanced person that can buy on the market, integrated pile-up valve group high, that volume is little 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, improved integration greatly and reduced volume, thereby two pump boxs of coal-winning machine equipment are achieved.Fig. 6 is the schematic diagram of two six logical hand-operated direction valves of the present invention, 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 heightened to the left and right rocking arm of coal-winning machine by the height-adjusting system of another one operate as normal by 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, the various tangible modifications and variations of carrying out on the basis that does not break away from the principle of the invention all should fall within protection scope of the present invention.
Claims (6)
1. two height-adjusting systems of a coal-winning machine, its have two heighten pump box and two the cover identical Hydraulic Power Transmission System, two hand-operated direction valves and two adjust high cylinders it is characterized in that, described two to heighten pump box be that pump box (6) is heightened on a left side and pump box (7) is heightened on the right side, two hand-operated direction valves are respectively hand-operated direction valve (8) and hand-operated direction valve (9), and two adjust high cylinders are respectively left adjust high cylinder (2) and left adjust high cylinder (3).
2. the two height-adjusting systems of coal-winning machine as claimed in claim 1, 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 described left side and be communicated with left adjust high cylinder (2), and another part pipeline in described a plurality of pipeline is communicated with right adjust high cylinder (3) by hand-operated direction valve (9) by 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 described right side and be communicated with right adjust high cylinder (3), and another part pipeline in described a plurality of pipeline is communicated with right adjust high cylinder (2) by hand-operated direction valve (8) by hand-operated direction valve (9).
3. the two height-adjusting systems of coal-winning machine as claimed in claim 2, it is characterized in that, wherein heighten and 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 pump box (6,7) and the hand-operated direction valve (8,9) respectively for two.
4. the two height-adjusting systems of coal-winning machine as claimed in claim 2 is characterized in that, described hand-operated direction valve is two six logical hand-operated direction valves.
5. as the two height-adjusting systems of the described coal-winning machine of one of claim 1-2, it is characterized in that, also comprise left brake (4) and right brake (5), wherein left brake (4) and right brake (5) are by left stop valve (10) and right stop valve (11) control, with realize left brake (4) with left and right heighten pump box (6,7) any one perforation and close, and control right brake (5) with left and right heighten pump box (6,7) any one perforation and close.
6. the two height-adjusting systems of coal-winning machine as claimed in claim 2 is characterized in that, described left and right heighten pump box (6,7) have (4) individual pipeline that is used to drive respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020287720 CN201826840U (en) | 2010-08-11 | 2010-08-11 | Double-heightening system of coal-winning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020287720 CN201826840U (en) | 2010-08-11 | 2010-08-11 | Double-heightening system of coal-winning machine |
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| CN201826840U true CN201826840U (en) | 2011-05-11 |
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| CN 201020287720 Expired - Fee Related CN201826840U (en) | 2010-08-11 | 2010-08-11 | Double-heightening system of coal-winning machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287185A (en) * | 2011-07-16 | 2011-12-21 | 西安煤矿机械有限公司 | High-power heavy low seam mining machine |
| CN102373925A (en) * | 2010-08-11 | 2012-03-14 | 西安煤矿机械有限公司 | Double height adjusting system for coal cutter |
| CN103541942A (en) * | 2013-10-29 | 2014-01-29 | 天地上海采掘装备科技有限公司 | Two-way control valve applicable to rising system of shortwall coal cutter |
| CN107882558A (en) * | 2017-12-19 | 2018-04-06 | 江苏鸡煤机械制造有限公司 | A kind of reinforced coal-winning machine efficiently braked |
-
2010
- 2010-08-11 CN CN 201020287720 patent/CN201826840U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373925A (en) * | 2010-08-11 | 2012-03-14 | 西安煤矿机械有限公司 | Double height adjusting system for coal cutter |
| CN102287185A (en) * | 2011-07-16 | 2011-12-21 | 西安煤矿机械有限公司 | High-power heavy low seam mining machine |
| CN102287185B (en) * | 2011-07-16 | 2013-11-06 | 西安煤矿机械有限公司 | High-power heavy low seam mining machine |
| CN103541942A (en) * | 2013-10-29 | 2014-01-29 | 天地上海采掘装备科技有限公司 | Two-way control valve applicable to rising system of shortwall coal cutter |
| CN103541942B (en) * | 2013-10-29 | 2016-04-20 | 天地上海采掘装备科技有限公司 | Be applicable to the bidirectional control valve of short-wall coal-winning machine height-adjusting system |
| CN107882558A (en) * | 2017-12-19 | 2018-04-06 | 江苏鸡煤机械制造有限公司 | A kind of reinforced coal-winning machine efficiently braked |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Xi'an Coal Mining Machinery Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: XI'AN COAL MINING MACHINERY Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20190811 |
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| CF01 | Termination of patent right due to non-payment of annual fee |