CN202012346U - Coal mining device and roller electric speed control system thereof - Google Patents
Coal mining device and roller electric speed control system thereof Download PDFInfo
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- CN202012346U CN202012346U CN2010206934657U CN201020693465U CN202012346U CN 202012346 U CN202012346 U CN 202012346U CN 2010206934657 U CN2010206934657 U CN 2010206934657U CN 201020693465 U CN201020693465 U CN 201020693465U CN 202012346 U CN202012346 U CN 202012346U
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Abstract
The utility model discloses a roller electric speed control system of a coal mining device, which comprises a first detecting element, a control element and a speed control element. The rotation speed of a roller can be applicable to a cutting coal bed status which changes at any time, and the roller is prevented from being damaged if touching a hard coal bed, thereby prolonging service life of the roller. Simultaneously, in normal use, for example, when the coal mining device works in a soft coal bed, the roller can be guaranteed to have a quick rotation speed, thereby guaranteeing the coal mining efficiency of the coal mining device. The control element further can adjust a pulling speed through a pulling speed control element, thereby enabling the pulling speed of the coal mining machine to be reasonably matched with a cutting speed and realizing safe and high efficiency cutting. The control element further can detect coal filling effects of the roller through a detecting element, receive a stress status of a transportation device through a detecting element, then control the cutting speed and the pulling speed of the coal mining machine, and guarantee high production and high efficiency of full mechanized equipment. The utility model further discloses a coal mining device comprising the roller electric speed control system.
Description
Technical field
The utility model relates to miner's equipment technical field, particularly a kind of cylinder electrical speed regulation system that is used for coal excavation apparatus.The utility model also relates to a kind of coal excavation apparatus that comprises above-mentioned cylinder electrical speed regulation system.
Background technology
Along with the fast development of China's economic construction, coal demand increases with its production capacity contradiction that falls behind outstanding gradually day by day.This just has higher requirement to the complex environment compliance and the production efficiency of comprehensive mechanical coal mining equipment.
Drum shearer is the core of comprehensive mechanical coal mining equipment.Typical drum shearer mainly partly is made up of cutting units, tractive unit, electric installation etc.Its intermediate roll is one of most critical parts of cutting units, has determined the production efficiency and the complete machine quality of coal-winning machine.Traditional slicing portion of drum shearer is by the constant power of cutting motor output, thereby the head roll body is with constant rotational speed, the combination pick that the barrel rotation drives on the helical blade simultaneously carries out the coal cutting operation, and the spiral of helical blade rolls the raw coal of cutting off is transported on the induction system of coal-winning machine.
Traditional drum shearer cylinder can only be exported constant rotating speed and torque because of it, is difficult to adapt to complicated coal mining geology condition.The common hardness level of down-hole coal bed work plane changes, and more dirt band or even hard rock are contained in inside, coal seam, therefore cylinder stressed variation in coal mining activity is bigger, particularly when running into harder dirt band or rock, the output torque is not enough to cause cylinder stuck thereby the constant rotational speed of cylinder can make, even cause the pick on the cylinder to rupture, cause a serious accident;
In addition, constant cylinder cutting speed and the torque raising that also hindered work plane performing comprehensive coal mining efficient.The coal mining efficient of work plane needs scraper plate machine and coal-winning machine height to cooperate realization.Drum shearer only can be regulated the balance of hauling speed to realize mining and transporting according to the load-carrying ability of scraper plate machine at present, thereby reaches high efficiency.Because cutting speed is constant, when coal-winning machine carried out the coal cutting operation in softer coal seam, drum rotation speed was relative slow excessively, and coal mining efficient reduces; And when scraper plate machine coal breakage amount was big, cylinder continued can't realize reduction of speed with the constant speed cut or stop, thereby caused the scratch board conveyor carrying too high and shut down.
In sum, typical drum shearer is difficult to adapt to complicated coal mining geology condition needs because of its constant cylinder cutting speed, and has hindered the further raising of coal mining efficient.Therefore above two aspects become the problem that those skilled in the art need solve.
The utility model content
The purpose of this utility model provides a kind of cylinder electrical speed regulation system that is used for coal excavation apparatus, and it can either guarantee the coal mining efficient of coal excavation apparatus, can avoid cylinder to run into hard coal seam again and the damage that causes, the application life of having improved cylinder.Another purpose of the present utility model provides a kind of coal excavation apparatus that comprises above-mentioned cylinder electrical speed regulation system.
For solving the problems of the technologies described above, the utility model provides a kind of cylinder electrical speed regulation system that is used for coal excavation apparatus, comprising:
Detect in real time the working resistance of the cylinder of described coal excavation apparatus, and obtain first detecting element with described working resistance size corresponding output signal; Receive described output signal, described output signal is compared with prearranged signals, and control the control element of speed governing element speed governing according to predetermined policy; The speed governing element of the outputting power of described cylinder cutting motor is regulated in the control of described control element down; Cutting motor to described cylinder outputting power, and is controlled the rotating speed of described cylinder under the control of described speed governing element; The output of described detecting element is connected with the input of described control element, the output of described control element is connected with the input of speed governing element, the output of described speed governing element is connected with the input of dynamical element, and the output of described dynamical element is connected with the cylinder of described coal excavation apparatus.
Preferably, described predetermined policy is, when the working resistance of described cylinder during greater than predetermined resistance, controls described cutting motor and reduces described outputting power, and described cutting motor is controlled described cylinder and reduced rotating speed; When the working resistance of described cylinder is less than or equal to described predetermined resistance, to control described cutting motor and improve described outputting power, described cutting motor is controlled described cylinder and is improved rotating speed.
Preferably, described cutting motor is a buncher.
Preferably, described speed governing element comprises feedback module, and described feedback module feeds back the speed of described buncher.
Preferably, also comprise traction speed governing element, described control element is controlled described traction speed governing element regulation hauling speed, and the hauling speed of described coal excavation apparatus and its cutting speed are complementary.
Preferably, also comprise second detecting element and the 3rd detecting element, described control element is controlled the effect of loading coal that described second detecting element detects described cylinder, described control element is controlled the stressing conditions signal that described the 3rd detecting element receives the transporter of described coal excavation apparatus, controls the cutting speed and the hauling speed of described coal excavation apparatus according to the stressing conditions of described transporter.
Preferably, described output signal is the signal of telecommunication.
The utility model also provides a kind of coal excavation apparatus, and the cylinder electrical speed regulation system that comprises cylinder and regulate described drum rotation speed, described cylinder electrical speed regulation system be as above-mentioned each described cylinder electrical speed regulation system.
The cylinder electrical speed regulation system that is used for coal excavation apparatus provided by the utility model, comprise first detecting element, control element, speed governing element and cutting motor, wherein first detecting element is used for detecting in real time the working resistance of the cylinder of described coal excavation apparatus, and obtain detecting element with described working resistance size corresponding output signal, be used to receive described output signal, described output signal is compared with prearranged signals, and according to predetermined policy send that command adapted thereto sends into that the speed governing element carries out the control element of speed governing and under the control of speed governing element to described cylinder outputting power, and the cutting motor of the rotating speed of index drum; Like this, in the coal seam of coal excavation apparatus, work at different hardness, when perhaps when coal cutting, running into tomography or dirt band, the stressed meeting of the detected cylinder of detecting element changes, then detecting element is controlled the output signal that original cost sends mutually and can be changed, comparison and control predetermined policy according to this output signal and prearranged signals, the outputting power of the cutting motor of cylinder can change, thereby can change the rotating speed of cylinder, make the rotating speed of cylinder adapt to the coal cutting coal seam situation that changes at any time, the damage of having avoided cylinder to run into hard coal seam and having caused, the application life of having improved cylinder; Simultaneously, under the mode of occupation of normality, when for example coal excavation apparatus is worked, can guarantee that again cylinder has rotating speed faster in than soft seam, thereby guarantee the coal mining efficient of coal excavation apparatus.
A kind of preferred embodiment in, described predetermined policy is, when the working resistance of described cylinder during greater than predetermined resistance, controls described cutting motor and reduces described outputting power, described cutting motor is controlled described cylinder and is reduced rotating speed; When the working resistance of described cylinder is less than or equal to described predetermined force, to control described cutting motor and improve described outputting power, described cutting motor is controlled described cylinder and is improved rotating speed; Like this, control strategy is comparatively simple, thereby has simplified the design difficulty of control element, has reduced production and design cost.
In addition, control element can also rationally mate shearer haulage speed and cutting speed by traction speed governing element regulation hauling speed, realizes safe and efficient cut.Control element can also detect the cylinder effect of loading coal, receive the transporter stressing conditions by the 3rd detecting element by second detecting element, controls coal-winning machine cut and hauling speed then, guarantees the fully-mechanized mining equipment high-yield and high-efficiency.
In another preferred embodiment, cutting motor provided by the utility model is a variable-frequency motor; Like this, can realize the change of drum rotation speed simply efficiently, and variable-frequency motor is the conventional equipment of this area, produce and use cost lower.
Description of drawings
Fig. 1 is the structural representation that is used for a kind of specific embodiment of cylinder electrical speed regulation system of coal excavation apparatus provided by the utility model;
Fig. 2 is the structural representation that is used for the another kind of specific embodiment of cylinder electrical speed regulation system of coal excavation apparatus provided by the utility model.
The specific embodiment
Core of the present utility model provides a kind of cylinder electrical speed regulation system that is used for coal excavation apparatus, and it can either guarantee the coal mining efficient of coal excavation apparatus, can avoid cylinder to run into hard coal seam again and the damage that causes, the application life of having improved cylinder.Another core of the present utility model provides a kind of coal excavation apparatus that comprises above-mentioned cylinder electrical speed regulation system.
In order to make those skilled in the art person understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, Fig. 1 is the structural representation that is used for a kind of specific embodiment of cylinder electrical speed regulation system of coal excavation apparatus provided by the utility model.
In one embodiment, cylinder electrical speed regulation provided by the utility model system is used for coal excavation apparatus, apparently, this coal excavation apparatus should be the coal-winning machine with cylinder 4 structures, can be various helix drum formula coal-winning machines, also can be the flitting of other roll form, correspondingly, this coal excavation apparatus can be single ended shearer, also can be double-ended shearer, can be as long as relate to coal excavation apparatus as the carrier of cylinder governing system provided by the utility model with roller frame, the concrete form of coal excavation apparatus is not done qualification at this.
Cylinder electrical speed regulation provided by the utility model system comprises control element 1, speed governing element 2, cutting motor 3, second detecting element 6, the 4th detecting element 9, traction speed governing element 7 and the 3rd detecting element 11; The output of described first detecting element 5 is connected with the input of described control element 1, the output of described control element 1 is connected with the input of speed governing element 2, the output of described speed governing element 2 is connected with the input of cutting motor 3, and the output of described cutting motor 3 is connected with the cylinder of described coal excavation apparatus 4.First detecting element 5 is used for detecting in real time the working resistance situation of the cylinder 4 of coal excavation apparatus, and obtains and working resistance size corresponding output signal; This output signal can be the various and corresponding signal of working resistance, the for example pressure signal or the signal of telecommunication etc., this output signal changes according to the variation of the working resistance situation of cylinder 4, and the corresponding different working resistance situation of different numerical value of this output signal.Control element 1 is used to receive above-mentioned output signal, output signal is compared with prearranged signals, and send into speed governing element 2 according to predetermined policy transmission command adapted thereto; Speed governing element 2 drives the outputting power of the cutting motor 3 of described cylinder 4 according to input instruction and feedback signal control; Apparently, above-mentioned prearranged signals should be the signal with the type same nature of output signal, both should have comparativity, particularly, when output signal was the signal of telecommunication, prearranged signals also correspondingly should be the signal of telecommunication, when output signal is pressure signal, prearranged signals is a pressure signal correspondingly also, and the rest may be inferred.Cutting motor 3 is used under the driving of the control of control element 1 and speed governing element 2 to cylinder 4 outputting powers, and the rotating speed of index drum 4.
It is pointed out that connection as herein described is mainly used in the bang path of explanation signal, both comprised by wired mode connecting the transmission that realizes signal, also comprise by wireless mode connecting the transmission that realizes signal.
The form of structure of the cylinder 4 that the utility model is related can be identical with the roller frame of routine, and this cylinder 4 also can comprise barrel, be arranged on knockdown helical blade on the barrel, be installed in the combination pick on the helical blade; When coal-winning machine is worked, the constant power of cutting motor 3 outputs, thereby the head roll body is with constant rotational speed, the combination pick that the barrel rotation drives on the helical blade simultaneously carries out the coal cutting operation, the spiral of helical blade rolls the raw coal of cutting off is transported on the induction system of coal-winning machine, and control element can detect the effect of loading coal of cylinder by second detecting element 6.
Like this, in the coal seam of coal excavation apparatus, work at different hardness, when perhaps when coal cutting, running into tomography or dirt band, the stressed meeting of first detecting element, 5 detected cylinders 4 changes, then first detecting element, the 5 corresponding output signals of sending can change, comparison and control predetermined policy according to this output signal and prearranged signals, the outputting power of the cutting motor 3 of cylinder 4 can change, thereby can change the rotating speed of cylinder 4, make the rotating speed of cylinder 4 adapt to the coal cutting coal seam situation that changes at any time, the damage of having avoided cylinder 4 to run into hard coal seam and having caused, the application life of having improved cylinder 4; Simultaneously, under the mode of occupation of normality, when for example coal excavation apparatus is worked, can guarantee that again cylinder 4 has rotating speed faster in than soft seam, thereby guarantee the coal mining efficient of coal excavation apparatus.
Above-mentioned predetermined policy can for, when the working resistance of described cylinder 4 during, control described cutting motor 3 and reduce described outputting power greater than predetermined force, the described cylinder 4 of described cutting motor 3 controls reduces rotating speeds; When the working resistance of described cylinder 4 is less than or equal to described predetermined force, to control described cutting motor 3 and improve outputting power, the described cylinder 4 of described cutting motor 3 controls improves rotating speed; Like this, control strategy is comparatively simple, thereby has simplified the design difficulty of control element 2, has reduced production and design cost.
Predetermined policy also is not limited to above-mentioned concrete form, as long as can realize realizing the change of cutting motor 3 outputting powers by contrast, and then the adjusting that realizes cylinder 4 rotating speeds gets final product, for example, predetermined policy can also for, when output signal is the signal of telecommunication, when detected voltage or other electrical quantitys during greater than predetermined voltage or scheduled electrical parameter big or small, control cutting motor 3 reduces outputting power, thereby index drum 4 reduces rotating speed; When detected voltage or other electrical quantitys during less than predetermined voltage or scheduled electrical parameter big or small, control cutting motor 3 improves outputting powers, thereby index drum 4 improves rotating speeds.
In addition, cylinder electrical speed regulation provided by the utility model system also comprises traction speed governing element 7, and the described traction speed governing element 7 of described control element 1 control is regulated hauling speeds, and the hauling speed of described coal excavation apparatus and its cutting speed are complementary.Particularly, control element detects hauling speed by the 4th detecting element 9, and the hauling speed of regulating traction electric machine 8 by traction speed governing element 7 is rationally mated the hauling speed of coal excavation apparatus and its cutting speed then, realizes safe and efficient cut.
Cylinder electrical speed regulation provided by the utility model system also comprises second detecting element 6 and the 3rd detecting element 11, described control element is controlled the effect of loading coal that described second detecting element 6 detects described cylinder, described control element is controlled the stressing conditions signal that described the 3rd detecting element 11 receives the transporter 10 of described coal excavation apparatus, controls the cutting speed and the hauling speed of described coal excavation apparatus according to the stressing conditions of described transporter 10.Control element receives the transporter stressing conditions by detecting element 11, controls coal-winning machine cut and hauling speed then, guarantees the fully-mechanized mining equipment high-yield and high-efficiency.
Can also be further improved the cylinder electrical speed regulation system that is used for coal excavation apparatus provided by the utility model.
Please refer to Fig. 2, Fig. 2 is the structural representation that is used for a kind of specific embodiment of cylinder electrical speed regulation system of coal excavation apparatus provided by the utility model.
In a kind of specific embodiment, cutting motor 3 provided by the utility model can be variable-frequency motor 12; Like this, can realize the change of cylinder 4 rotating speeds simply efficiently, and variable-frequency motor 12 is the conventional equipment of this area, produce and use cost lower.
Above-mentioned cutting motor 3 also is not limited to variable-frequency motor 12, and it also can realize the power-equipment that rotating speed changes for other.
First detecting element 5 provided by the utility model can be same control module with control element 1, speed governing element 2; First detecting element 5 and control element 1, speed governing element 2 are integrated into an element, have saved the shared space of system, simplified the structure of system.
Apparently, also be not limited to the form that first detecting element 5 and control element 1, speed governing element 2 is integrated into same control module, also can be independent detection, control and speed adjusting module, first detecting element 5 can be pressure sensor, control element 1 can be logic controller, and speed governing element 2 can be frequency converter etc.
Control module after the above-mentioned integration can be frequency-variable controller 13, and this frequency-variable controller 13 can either be realized the integrated function of Detection ﹠ Controling speed governing, and function is comparatively stable, and reliability is higher.This control module also is not limited to frequency-variable controller 13, its also can in this area conventional use other can realize detecting, the element of control and speed governing.
Except above-mentioned cylinder electrical speed regulation system, the utility model also provides a kind of coal excavation apparatus that comprises above-mentioned cylinder electrical speed regulation system, and other each several part structures of this coal excavation apparatus please refer to prior art, do not repeat them here.
More than a kind of coal excavation apparatus provided by the utility model and cylinder electrical speed regulation system thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (8)
1. a cylinder electrical speed regulation system that is used for coal excavation apparatus is characterized in that, comprising:
Detect in real time the working resistance of the cylinder (4) of described coal excavation apparatus, and obtain first detecting element (5) with described working resistance size corresponding output signal; Receive described output signal, described output signal is compared with prearranged signals, and control the control element (1) of speed governing element speed governing according to predetermined policy; The speed governing element (2) of the outputting power of described cylinder (4) cutting motor is regulated in the control of described control element (1) down; Cutting motor (3) to described cylinder (4) outputting power, and is controlled the rotating speed of described cylinder (4) under the control of described speed governing element (2); The output of described detecting element (5) is connected with the input of described control element (1), the output of described control element (1) is connected with the input of speed governing element (2), the output of described speed governing element (2) is connected with the input of dynamical element (3), and the output of described dynamical element (3) is connected with the cylinder (4) of described coal excavation apparatus.
2. the cylinder electrical speed regulation system that is used for coal excavation apparatus according to claim 1, it is characterized in that, described predetermined policy is, when the working resistance of described cylinder (4) during greater than predetermined resistance, control described cutting motor (3) and reduce described outputting power, described cutting motor (3) is controlled described cylinder (4) and is reduced rotating speed; When the working resistance of described cylinder (4) is less than or equal to described predetermined resistance, to control described cutting motor (3) and improve described outputting power, described cutting motor (3) is controlled described cylinder (4) and is improved rotating speed.
3. the cylinder electrical speed regulation system that is used for coal excavation apparatus according to claim 2 is characterized in that described cutting motor (3) is a buncher.
4. the cylinder electrical speed regulation system that is used for coal excavation apparatus according to claim 3 is characterized in that described speed governing element (2) comprises feedback module, and described feedback module feeds back the speed of described buncher.
5. according to each described cylinder electrical speed regulation system that is used for coal excavation apparatus of claim 1 to 4, it is characterized in that, also comprise traction speed governing element (7), described control element (1) the described traction speed governing element of control (7) is regulated hauling speed, and the hauling speed of described coal excavation apparatus and its cutting speed are complementary.
6. according to each described cylinder electrical speed regulation system that is used for coal excavation apparatus of claim 1 to 4, it is characterized in that, also comprise second detecting element (6) and the 3rd detecting element (11), described control element is controlled the effect of loading coal that described second detecting element (6) detects described cylinder, described control element is controlled the stressing conditions signal that described the 3rd detecting element (11) receives the transporter of described coal excavation apparatus, controls the cutting speed and the hauling speed of described coal excavation apparatus according to the stressing conditions of described transporter.
7. according to each described cylinder electrical speed regulation system that is used for coal excavation apparatus of claim 1 to 4, it is characterized in that described output signal is the signal of telecommunication.
8. coal excavation apparatus comprises cylinder (4) and the cylinder electrical speed regulation system that regulates described cylinder (4) rotating speed, it is characterized in that, described cylinder electrical speed regulation system is as each described cylinder electrical speed regulation system of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206934657U CN202012346U (en) | 2010-12-30 | 2010-12-30 | Coal mining device and roller electric speed control system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206934657U CN202012346U (en) | 2010-12-30 | 2010-12-30 | Coal mining device and roller electric speed control system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN202012346U true CN202012346U (en) | 2011-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206934657U Expired - Fee Related CN202012346U (en) | 2010-12-30 | 2010-12-30 | Coal mining device and roller electric speed control system thereof |
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| CN (1) | CN202012346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392637A (en) * | 2011-12-07 | 2012-03-28 | 天地上海采掘装备科技有限公司 | Novel coal cutter |
| CN102678109A (en) * | 2012-04-26 | 2012-09-19 | 三一重型装备有限公司 | Cutting part protective device for continuous mining machine and continuous mining machine |
-
2010
- 2010-12-30 CN CN2010206934657U patent/CN202012346U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392637A (en) * | 2011-12-07 | 2012-03-28 | 天地上海采掘装备科技有限公司 | Novel coal cutter |
| CN102392637B (en) * | 2011-12-07 | 2017-02-15 | 天地上海采掘装备科技有限公司 | Novel coal cutter |
| CN102678109A (en) * | 2012-04-26 | 2012-09-19 | 三一重型装备有限公司 | Cutting part protective device for continuous mining machine and continuous mining machine |
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Granted publication date: 20111019 Termination date: 20131230 |