CN103967490B - Coal-winning machine fluid pressure type hybrid power cut drive system - Google Patents
Coal-winning machine fluid pressure type hybrid power cut drive system Download PDFInfo
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- CN103967490B CN103967490B CN201410227488.1A CN201410227488A CN103967490B CN 103967490 B CN103967490 B CN 103967490B CN 201410227488 A CN201410227488 A CN 201410227488A CN 103967490 B CN103967490 B CN 103967490B
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Abstract
The invention discloses a kind of coal-winning machine fluid pressure type hybrid power cut drive system, including cutting drum, planetary gear speed-reduction assembly, cutting motor drive system and fluid power system, power output unit and the cutting drum of described planetary gear speed-reduction assembly are in transmission connection, and the other power output unit with cutting motor drive system and fluid power system of the power input portion of described planetary gear speed-reduction assembly is in transmission connection.In the present invention, cutting drum is driven jointly by cutting motor drive system and fluid power system, can be regulated the rotating speed of cutting drum by fluid power system, so that coal-winning machine can preferably control lump coal rate and dust in mining process；Hydraulic motor can work with the form of pump, and when cutting drum is stuck, the power of cutting motor can pass to hydraulic motor, thus can be prevented effectively from the stuck problem causing cutting motor overload to damage of cutting drum；Impact shock in fluid power system also available buffer mining process, protects cutting motor.
Description
Technical field
The present invention relates to a kind of drive system, particularly to the cut drive system of a kind of coal-winning machine.
Background technology
It is known that coal-winning machine working condition is severe, suffered load change is big.During actual coal mining, cut
The rotating speed cutting cylinder changes according to operating mode sometimes, but due to a variety of causes, existing winning machine cutting part
Drive system is unable to realize speed change by mechanism, and can only carry out cut with constant rotating speed, and this is very big
Reduce the Cutting Performance of coal-winning machine, it is difficult to lump coal rate and dust are effectively controlled, to coalman
Healthy and the life security of people produces and threatens greatly.Additionally, during coal mining opportunity sudden change load, cut
Cylinder may be stuck and damage cutting motor.
Therefore, design cutting drum rotating speed adjustable cut drive system not only to control lump coal rate, dust and
The adaptability improving coal-winning machine is significant, it is also possible to improves the Cutting Performance of coal-winning machine, makes coal-winning machine
Obtain higher cutting efficiency.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of coal-winning machine fluid pressure type hybrid power cut drive system,
With solve existing coal-winning machine cutting drum rotating speed non-adjustable, can not the effective shortcoming such as control to lump coal rate and dust.
Coal-winning machine fluid pressure type hybrid power cut drive system of the present invention, including cutting drum, planetary gear reduction
Speed assembly, cutting motor drive system and fluid power system, the power of described planetary gear speed-reduction assembly
Output unit and cutting drum are in transmission connection, and the power input portion of described planetary gear speed-reduction assembly not and cuts
The power output unit cutting motor driven systems and fluid power system is in transmission connection.
Further, described cutting motor drive system includes cutting motor and gear reduction unit, described cut electricity
The power output unit of machine and the power input unit of gear reduction unit are in transmission connection, moving of described gear reduction unit
The power input unit of power output unit and planetary gear speed-reduction assembly is in transmission connection.
Further, the power output unit of described cutting motor is elastic torque axis.
Further, described fluid power system includes hydraulic motor and hydraulic power source system, described hydraulic pressure horse
The power output unit reached and the power input unit of planetary gear speed-reduction assembly are in transmission connection, described hydraulic motor
Be provided with relief valve group and three position four-way directional control valve group on the connection oil circuit of hydraulic power source system.
Further, the connection oil circuit of described hydraulic motor and hydraulic power source system is additionally provided with accumulator.
Further, described hydraulic power source system include heightening motor, by heighten motor-driven hydraulic pump and
It is arranged on the 3 position-5 way valve on hydraulic pump outlet oil circuit.
Further, described accumulator is also connected with the oil return line controlling the hydraulic cylinder that rocker arm of coal mining machine lifts, and
Connect and be provided with pressure switch on the oil circuit of hydraulic cylinder and accumulator.
Further, described planetary gear speed-reduction assembly include the primary planet pinion that is arranged in cutting drum and
Secondary planetary gear, the sun gear of described primary planet pinion and the power output of cutting motor drive system
Portion is in transmission connection, and the gear ring of described primary planet pinion and the power output unit of fluid power system pass through tooth
Wheel is in transmission connection.
Beneficial effects of the present invention:
1, coal-winning machine fluid pressure type hybrid power cut drive system of the present invention, its cutting drum is driven by cutting motor
Dynamic system and fluid power system drive jointly, the power of cutting motor output and moving of hydraulic motor output
Power realizes rotating speed by planetary gear speed-reduction assembly and couples, and can regulate cut by fluid power system and roll
The rotating speed of cylinder, so that coal-winning machine can preferably control lump coal rate in mining process and reduce dust.
2, coal-winning machine fluid pressure type hybrid power cut drive system of the present invention, its hydraulic motor can be with the shape of pump
Formula works, and when cutting drum is stuck, the power of cutting motor can pass to hydraulic motor to accumulator accumulation of energy,
Thus the stuck problem causing cutting motor overload to damage of cutting drum can be prevented effectively from.
3, coal-winning machine fluid pressure type hybrid power cut drive system of the present invention, fluid power system and accumulator are equal
May participate in driving cutting drum, therefore can reduce cutting motor power, and then make cutting motor weight and size
Reduce, advantageously reduce the weight of rocker arm of coal mining machine.
4, coal-winning machine fluid pressure type hybrid power cut drive system of the present invention, its fluid power system can alleviate
The impact shock impact on cutting motor in mining process, can protect cutting motor；It heightens motor and accumulator
Cutting power and the energy utilization rate of cutting units can be improved.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of coal-winning machine fluid pressure type hybrid power cut drive system of the present invention；
Fig. 2 is the structural representation of cutting motor drive system in the present invention；
Fig. 3 is the structural representation of fluid power system in the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it can be seen, the present embodiment coal-winning machine fluid pressure type hybrid power cut drive system, including cutting drum
13, planetary gear speed-reduction assembly 5, cutting motor drive system and fluid power system, described planetary gear
Power output unit and the cutting drum 13 of deceleration assembly 5 are in transmission connection, described planetary gear speed-reduction assembly 5
Power input portion not with the power output unit transmission company of cutting motor drive system and fluid power system
Connect.Described cutting motor drive system and planetary gear speed-reduction assembly 5 are arranged at the shearer ranging arm 1 of coal-winning machine
In.
As in figure 2 it is shown, cutting motor drive system described in the present embodiment includes that cutting motor 2 and gear subtract
Speed device 4, the power output unit of described cutting motor 2 and the power input unit of gear reduction unit 4 be in transmission connection,
The power output unit of described gear reduction unit 4 and the power input unit transmission of planetary gear speed-reduction assembly 5 are even
Connect.
Described fluid power system includes hydraulic motor 7 and hydraulic power source system 12, described hydraulic motor
The power output unit of 7 and the power input unit of planetary gear speed-reduction assembly 5 are in transmission connection, described hydraulic motor
7 and hydraulic power source system 12 connection oil circuit on be provided with relief valve group 8 and three position four-way directional control valve group
9.In the present embodiment, three position four-way directional control valve group 9 is electro-hydraulic directional valve, and the most different enforcement can also be adopted
Use other reversal valves；Three position four-way directional control valve group 9 is for controlling the start and stop of hydraulic motor 7, when three four
When logical reversal valve is in middle position, it is achieved the locking of hydraulic motor 7, when three position four-way directional control valve is in left position
Or during right position, hydraulic motor 7 works.
Described planetary gear speed-reduction assembly 5 includes the primary planet pinion 5-1 being arranged in cutting drum 13
With the sun gear of secondary planetary gear 5-2, described primary planet pinion 5-1 and moving of gear reduction unit 4
Power output unit is in transmission connection, the gear ring of described primary planet pinion 5-1 and the power output of hydraulic motor 7
Portion is in transmission connection by gear 6.
The work process of above-mentioned coal-winning machine fluid pressure type hybrid power cut drive system is as follows:
Under normal design coal seam, when coal-winning machine is mined, three position four-way directional control valve 9 is in middle position, hydraulic motor 7
Being locked out, cutting drum 13 is driven by cutting motor 2；When running into seam hardness change, 3-position 4-way changes
Being in left position or right position to valve 9, hydraulic motor 7 participates in driving cutting drum 13.
According to planetary gear rotary speed property: ns+k·nr=(1+k) nc, wherein ns is sun gear rotating speed；nr
For gear ring rotating speed；Nc is planet carrier rotating speed；K is planetary gear ratio.
Understand, coupled by the gear ring of gear 6 with primary planet pinion 5-1, it is possible to achieve cutting motor 2 turns
Speed and the coupling of hydraulic motor 7 rotating speed.By regulating the flow of hydraulic motor 7, hydraulic motor 7 can be realized defeated
Go out the change of rotating speed, and then regulation cutting drum 13 rotating speed is to adapt to coal seam operating mode, controls lump coal rate and dust.
When running into shock loading, impact can be relaxed by fluid power system, and hydraulic motor 7 can be with
Pump work, exports cutting motor 2 power and passes to hydraulic motor 7 (now hydraulic motor 7 is with hydraulic pump
Form works), protect cutting motor 2, prevent cutting drum 13 stuck damage cutting motor 2.
In the present embodiment, the power output unit of described cutting motor 2 is elastic torque axis 3, described elasticity
Cutting motor can be played overload protective function by torque axis 3；During specific works, described cut electricity
Machine 2 can work independently, it is also possible to and hydraulic motor 7 cooperation.
As the improvement to the present embodiment, the connection oil of described hydraulic motor 7 and hydraulic power source system 12
It is additionally provided with accumulator 10 on road, accumulator 10 accumulation of energy when hydraulic power source system 12 works, can be given,
Accumulator 10 can participate in driving hydraulic motor 7, and then can improve the cutting power of cutting drum 13, cuts
Cut the power reduction of motor 2, weight and size also to reduce；And when coal-winning machine quits work, cut rolls
The inertia energy of cylinder 13 can be stored by hydraulic motor 7 (now hydraulic motor 7 plays the effect of hydraulic pump)
In accumulator 10, be conducive to improving energy utilization rate.
As the improvement to the present embodiment, described hydraulic power source system 12 include heightening motor 12-1, by
Heighten motor-driven hydraulic pump 12-2 and the 3 position-5 way valve being arranged on hydraulic pump outlet oil circuit
12-4；Described accumulator 10 is also connected with the oil return line controlling the hydraulic cylinder 12-3 that rocker arm of coal mining machine lifts,
Described accumulator 10 also oil return line with hydraulic cylinder 12-3 is connected, and connects hydraulic cylinder 12-3 and accumulator
Pressure switch 11 it is provided with, the connection oil of described hydraulic pump 12-2 and hydraulic cylinder 12-3 on the oil circuit of 10
Hydraulic lock 12-5 it is provided with on road.In coal-winning machine work process, when turning down rocker arm of coal mining machine height,
Can store in accumulator 10 by part oil return line hydraulic oil, pressure switch 11 sets according to oil return line
A fixed force value, this force value is more than the minimum supercharging pressure of accumulator 10.Reaching relay 11
During setup pressure value, relay 11 action, the bi-bit bi-pass reversal valve energising in hydraulic lock 12-5, liquid
Control check valve is opened, oil return line connected tank, accumulator 10 no longer accumulation of energy.This improvement makes accumulator 10
Inertia energy when the most recyclable rocker arm of coal mining machine declines, is conducive to improving energy utilization rate further.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although ginseng
According to preferred embodiment, the present invention is described in detail, it will be understood by those within the art that, permissible
Technical scheme is modified or equivalent, without deviating from technical solution of the present invention objective and
Scope, it all should be contained in the middle of scope of the presently claimed invention.
Claims (7)
1. a coal-winning machine fluid pressure type hybrid power cut drive system, it is characterised in that: include cutting drum,
Planetary gear speed-reduction assembly, cutting motor drive system and fluid power system, described planetary gear speed-reduction
The power output unit of assembly and cutting drum are in transmission connection, the power input of described planetary gear speed-reduction assembly
Portion's power output unit with cutting motor drive system and fluid power system respectively is in transmission connection；Described liquid
Pressure drive system include hydraulic motor and hydraulic power source system, the power output unit of described hydraulic motor and
The power input unit of planetary gear speed-reduction assembly is in transmission connection, described hydraulic motor and hydraulic power source system
Connection oil circuit on be provided with relief valve group and three position four-way directional control valve group.
Coal-winning machine fluid pressure type hybrid power cut drive system the most according to claim 1, its feature exists
In: described cutting motor drive system includes cutting motor and gear reduction unit, moving of described cutting motor
The power input unit of power output unit and gear reduction unit is in transmission connection, the power output of described gear reduction unit
The power input unit of portion and planetary gear speed-reduction assembly is in transmission connection.
Coal-winning machine fluid pressure type hybrid power cut drive system the most according to claim 2, its feature exists
In: the power output unit of described cutting motor is elastic torque axis.
Coal-winning machine fluid pressure type hybrid power cut drive system the most according to claim 1, its feature exists
In: it is additionally provided with accumulator on the connection oil circuit of described hydraulic motor and hydraulic power source system.
Coal-winning machine fluid pressure type hybrid power cut drive system the most according to claim 4, its feature exists
In: described hydraulic power source system includes heightening motor, by heightening motor-driven hydraulic pump and being arranged on
3 position-5 way valve on hydraulic pump outlet oil circuit.
Coal-winning machine fluid pressure type hybrid power cut drive system the most according to claim 5, its feature exists
In: described accumulator is also connected with the oil return line controlling the hydraulic cylinder that rocker arm of coal mining machine lifts, and connects liquid
It is provided with pressure switch on the oil circuit of cylinder pressure and accumulator.
7. according to described coal-winning machine fluid pressure type hybrid power cut drive system arbitrary in claim 1-6,
It is characterized in that: described planetary gear speed-reduction assembly includes the primary planet pinion being arranged in cutting drum
With secondary planetary gear, the sun gear of described primary planet pinion and the power of cutting motor drive system are defeated
Going out portion to be in transmission connection, the gear ring of described primary planet pinion and the power output unit of fluid power system are passed through
Gear drive connects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410227488.1A CN103967490B (en) | 2014-05-27 | 2014-05-27 | Coal-winning machine fluid pressure type hybrid power cut drive system |
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| CN201410227488.1A CN103967490B (en) | 2014-05-27 | 2014-05-27 | Coal-winning machine fluid pressure type hybrid power cut drive system |
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| CN103967490A CN103967490A (en) | 2014-08-06 |
| CN103967490B true CN103967490B (en) | 2016-08-17 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104213916B (en) * | 2014-08-13 | 2016-04-13 | 浙江大学 | The winning machine cutting part of motor and hydraulic-driven exchange can be carried out |
| CN104500062B (en) * | 2014-12-04 | 2016-08-17 | 重庆大学 | Winning machine cutting part actuating unit |
| CN105738103B (en) * | 2016-02-26 | 2018-08-17 | 重庆大学 | A kind of advanced cutting transmission system exploitation test platform of drum shearer |
| CN114320290B (en) * | 2021-11-24 | 2023-08-11 | 中煤科工集团西安研究院有限公司 | Full-hydraulic control system and control method for automatic rod-adding drilling machine for coal mine |
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| DE3904279C2 (en) * | 1989-02-14 | 1991-02-21 | Ruhrkohle Ag, 4300 Essen, De | |
| CN2426014Y (en) * | 2000-03-07 | 2001-04-04 | 西安科技学院 | Torsion impact type vibration cutting mechamism |
| RU2186214C1 (en) * | 2000-12-09 | 2002-07-27 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Device for automatic regulation of coal shearer load |
| CN201013375Y (en) * | 2007-03-29 | 2008-01-30 | 颜勇军 | High-durability small-sized tunnelling machine cutter head hydraulically driving device |
| CN203603898U (en) * | 2013-09-29 | 2014-05-21 | 江苏中机矿山设备有限公司 | Thin coal seam coal mining machine |
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| CN103073960A (en) * | 2013-02-03 | 2013-05-01 | 张芝莲 | Seamless pipe with anticorrosive layer |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3904279C2 (en) * | 1989-02-14 | 1991-02-21 | Ruhrkohle Ag, 4300 Essen, De | |
| CN2426014Y (en) * | 2000-03-07 | 2001-04-04 | 西安科技学院 | Torsion impact type vibration cutting mechamism |
| RU2186214C1 (en) * | 2000-12-09 | 2002-07-27 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Device for automatic regulation of coal shearer load |
| CN201013375Y (en) * | 2007-03-29 | 2008-01-30 | 颜勇军 | High-durability small-sized tunnelling machine cutter head hydraulically driving device |
| CN203603898U (en) * | 2013-09-29 | 2014-05-21 | 江苏中机矿山设备有限公司 | Thin coal seam coal mining machine |
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| CN103967490A (en) | 2014-08-06 |
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Effective date of registration: 20210526 Address after: 402460 station No.14, no.6, 10th floor, innovation and development center, No.19 Lingfang Avenue, Changzhou street, Rongchang District, Chongqing Patentee after: Chongqing kezhiyuan Technology Co.,Ltd. Address before: 400044 No. 174 Sha Jie street, Shapingba District, Chongqing Patentee before: Chongqing University |
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