CN103821885B - Coal winning machine mechanical electronic hydraulic compound short distance transmission system - Google Patents
Coal winning machine mechanical electronic hydraulic compound short distance transmission system Download PDFInfo
- Publication number
- CN103821885B CN103821885B CN201410061694.XA CN201410061694A CN103821885B CN 103821885 B CN103821885 B CN 103821885B CN 201410061694 A CN201410061694 A CN 201410061694A CN 103821885 B CN103821885 B CN 103821885B
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- Prior art keywords
- gear
- output
- winning machine
- coal winning
- short distance
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/46—Gearings having only two central gears, connected by orbital gears
- F16H3/58—Gearings having only two central gears, connected by orbital gears with sets of orbital gears, each consisting of two or more intermeshing orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2007—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with two sets of orbital gears
Abstract
The invention discloses a kind of coal winning machine mechanical electronic hydraulic compound short distance transmission system, comprise power system, variable ratio drive system and housing; Described power system comprises main power plant and auxiliary power unit; Described main power plant comprises active force input assembly and input sun gear I; Described auxiliary power unit comprises auxiliary power input assembly, input sun gear II and output planetary gear II; Described variable ratio drive system comprises output planetary gear I, duplex planet frame gear and the output gear I for driving coal winning machine cutterhead to rotate; The present invention can meet different operating mode needs, there is the features such as larger output, carrying are comparatively large, impact resistance is better, velocity ratio is large, Transmitted chains is short, installation and removal difficulty can be reduced simultaneously, lower and safeguard and the cost of overhaul, promote transmission system reliability, and fundamentally solve conventional drive system due to the asynchronous problem that multichannel speed change, transmission chain length, power source are single, rocking arm non-deformability difference causes.
Description
Technical field
The invention belongs to coal winning machine short distance transmission system field, be specifically related to the mechanical electronic hydraulic compound short distance transmission system of a kind of coal winning machine machine-liquid multi-power source.
Background technique
Coal is the main body energy of China, extraction coal 36.6 hundred million tons in 2012, and the mine that mining depth is greater than 500 meters accounts for 40%, and existing more than 40 mine is adopted and deeply exceeded km, at present just with the speed of annual 8-12m to deep deepening.More than 90% of coal in China output relies on underground mining mode, and geology and mining conditions more severe, cause coal winning machine whole aircraft reliability entirety compared with low, operation troubles is many.Such as, 7 cut transmission arms changed by the domestic coal winning machine that certain ore deposit of Huainan Mining Area uses within half a year, and another colliery uses Germany's product coal winning machine cutting arm drive failures not to occur in 2 years.Field statistics shows, coal winning machine failure of gear transmission is to the reliability effect Du Keda 35% of complete machine.
The heavy duty of digging operation, Qiang Zhen, impulsive load all carry out transmission by gear mechanism.Coal winning machine drive part is baroque serial power transfer chain, complete machine will be caused to quit work if a gear occurs to lose efficacy; Meanwhile, active service coal winning machine generally adopts a set of power-driven system (being mainly motor to drive), once drive system breaks down, complete machine cannot work on, and its service cycle is longer, have a strong impact on coal mining efficiency.
The transmission system of existing cutting device of coal mining machine adopts multi-stage planetary gear to add the kind of drive of idle pulley usually, and the Transmitted chains of this kind of drive is longer, makes the defects such as transmission system functional reliability is low, rate of fault is high, the military service cycle is short.
Drive system (containing gear transmission speed governing part), as the important constituent element of coal winning machine, has important impact to the performance of coal winning machine.In prior art, in order to enable coal winning machine work well under different coal environment, its cylinder needs different output states.In prior art, in order to reach the object of transmission of power under different output state, generally adopt multistep speed regulation system, different speed control systems finally outputs power to the cylinder of coal winning machine, makes coal winning machine drive system volume too huge, complex structure, manufacture cost is high, and output state is single.
Rocking arm is as the carrier of coal winning machine transmission system and cylinder, cutterhead, be on active service under long-term and coal seam is in the severe environmental conditions of rigid contact and large sideway torque, easily causing rocking arm to deform affects the relative position relation being installed on the inner driving gear of rocking arm, thus the inefficacy of aggravation gear, affect whole aircraft reliability.
Therefore, a kind of coal mining machine transmission system is needed to carry out alternative existing transmission system, different operating mode needs can be met, there is the features such as larger output, carrying are comparatively large, impact resistance is better, velocity ratio is large, Transmitted chains is short, installation and removal difficulty can be reduced simultaneously, lower and safeguard and the cost of overhaul, promote transmission system reliability, and fundamentally solve multichannel speed change, the transmission chain length of conventional drive system employing, power source is single, rocking arm non-deformability is poor, asynchronous problem existing in these structures.
Summary of the invention
In view of this, the object of this invention is to provide a kind of coal winning machine mechanical electronic hydraulic compound short distance transmission system, the above-mentioned defect of prior art can be overcome.
The object of the invention is to be achieved through the following technical solutions:
A kind of coal winning machine mechanical electronic hydraulic compound short distance transmission system, comprises power system, variable ratio drive system and housing; Described power system comprises main power plant and auxiliary power unit; Described main power plant comprises active force input assembly and input sun gear I; Described auxiliary power unit comprises auxiliary power input assembly, input sun gear II and output planetary gear II; Described variable ratio drive system comprises output planetary gear I, duplex planet frame gear and the output gear I for driving coal winning machine cutterhead to rotate; The clutch end of described active force input assembly coordinates in circumferencial direction transmission with input sun gear I, and the clutch end of described auxiliary power input assembly coordinates in circumferencial direction transmission with input sun gear II; Described input solar energy wheel I engages with output planetary gear I, described output planetary gear I and output gear I internal messing; Described duplex planet frame gear one end is the planet carrier of output planetary gear I, and the other end is gear end; Described output planetary gear II is duplicate gear, and the gear of its input end engages with input sun gear II, and the gear of its output terminal engages with the gear end of duplex planet frame gear, and the planet carrier of described output planetary gear II is fixedly installed on housing;
Further, described variable ratio drive system also comprises output gear II and the lockable mechanism for fixing or be separated output gear I and output gear II, described output gear II is provided with internal tooth and external tooth, the internal tooth of described output gear II engages with the gear of output end of output planetary gear II, and the described external tooth of output gear II engages with the flank profil on lockable mechanism;
Further, the active force input assembly of described power system and auxiliary power input assembly are respectively motor and oil hydraulic motor;
Further, described power system comprises at least two group auxiliary power units;
Further, the clutch end of described active force input assembly is provided with break;
Further, described output gear I is provided with for saving with the tubular that coal winning machine cutter head support is fixedly connected with in a circumferential direction;
Further, also comprise shock mitigation system, described shock mitigation system comprises and the annular mounting cylinder of rocker arm of coal mining machine one and the vibration damper that is arranged between annular mounting cylinder and housing;
Further, described housing integral installation is in annular mounting cylinder, and described vibration damper one end is fixedly installed on housing cylindrical, and the other end is fixedly installed in the groove of the corresponding inner circle of annular mounting cylinder.
The invention has the beneficial effects as follows: coal winning machine mechanical electronic hydraulic compound short distance transmission system of the present invention, different operating mode needs can be met, there is the features such as larger output, carrying are comparatively large, impact resistance is better, velocity ratio is large, Transmitted chains is short, installation and removal difficulty can be reduced simultaneously, lower and safeguard and the cost of overhaul, promote transmission system reliability, and fundamentally solve conventional drive system due to the asynchronous problem that multichannel speed change, transmission chain length, power source are single, rocking arm non-deformability difference causes.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by specification below and obtain.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is driving mechanism sketch of the present invention;
In figure, 1-active force input assembly, 2-auxiliary power input assembly, 4-inputs the planet carrier of sun gear II, 6-output planetary gear II, 7-output planetary gear II, 8-output gear II, 9-lockable mechanism, 10-inputs sun gear I, 11-output planetary gear I, 12-duplex planet frame gear, 13-output gear I, 14-vibration damper, 18-annular mounting cylinder, 19-rocker arm of coal mining machine, 20-break, 21-housing.
Embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only in order to the present invention is described, instead of in order to limit the scope of the invention.
As shown in the figure, a kind of coal winning machine mechanical electronic hydraulic compound short distance transmission system, comprises power system, variable ratio drive system and housing 21; Described power system comprises main power plant and auxiliary power unit; Described main power plant comprises active force input assembly 1 and input sun gear I 10; Described auxiliary power unit comprises auxiliary power input assembly 2, input sun gear II 4 and output planetary gear II 6; Described variable ratio drive system comprises output planetary gear I 11, duplex planet frame gear 12 and the output gear I 13 for driving coal winning machine cutterhead to rotate; The clutch end of described active force input assembly 1 coordinates in circumferencial direction transmission with input sun gear I 10, and the clutch end of described auxiliary power input assembly 2 coordinates in circumferencial direction transmission with input sun gear II 4; Described input solar energy wheel I 10 engages with output planetary gear I 11, described output planetary gear I 11 and output gear I 13 internal messing; Described duplex planet frame gear one end is the planet carrier of output planetary gear I, and the other end is gear end; Described output planetary gear II 6 is duplicate gear, and the gear of its input end engages with input sun gear II 4, and the gear of its output terminal engages with the gear end of duplex planet frame gear, and the planet carrier 7 of described output planetary gear II is fixedly installed on housing 21.
The coal winning machine mechanical electronic hydraulic compound short distance transmission system of the present embodiment, follows (1) auxiliary power unit and inputs separately---output planetary gear shunting---output gear I and to conflux output; (2) main power plant inputs separately---duplex planet frame gear shunting---, and input gear ring I confluxes output; (3) the transmission rule that output gear I exports that main power plant and auxiliary power unit input simultaneously---duplex planet frame gear confluxes---.There is multisystem mixing multi input and the multi power source feature that inputs separately of single system, achieve increase moment of torsion, governing speed scope, the object of short distance transmission and alleviation impact endurance test shock, low-speed big output is realized by the change of output torque and rotating speed, the input mode changing power source can adapt to different output operating modes, the drive length reducing Transmitted chains suitably can improve transmission efficiency, fundamentally solve the multichannel speed change that conventional drive system adopts, transmission chain length, power source is single, rocking arm non-deformability is poor, asynchronous problem existing in these structures.
In the present embodiment, described variable ratio drive system also comprises output gear II 8 and the lockable mechanism 9 for fixing or be separated output gear I and output gear II, described output gear II is provided with internal tooth and external tooth, the internal tooth of described output gear II engages with the gear of output end of output planetary gear II, the described external tooth of output gear II engages with the flank profil on lockable mechanism, described lockable mechanism is arranged on output gear I, time locked and output gear II link into an integrated entity, form the common outputting power of duplex output gear, active force input assembly and the auxiliary power input assembly of described power system are respectively motor and oil hydraulic motor, certainly in various embodiments, other prime mover also can realize, described power system comprises two groups of auxiliary power units, in the present embodiment, the clutch end of described active force input assembly is provided with break 20.Shunting that output gear II and lockable mechanism be convenient to this transmission system is set and confluxes; Described auxiliary power input assembly is the impact endurance test shock under oil hydraulic motor contributes to alleviation bad working environments.
In the present embodiment, described output gear I is provided with for saving with the tubular that coal winning machine cutter head support is fixedly connected with in a circumferential direction; The tubular joint of this enforcement also has the function of sealing variable ratio drive system.
In the present embodiment, also comprise shock mitigation system, described shock mitigation system comprises and the annular mounting cylinder 18 of rocker arm of coal mining machine 19 one and the vibration damper 14 that is arranged between annular mounting cylinder and housing.
In the present embodiment, described housing integral installation is in annular mounting cylinder, and described vibration damper one end is fixedly installed on housing cylindrical, and the other end is fixedly installed in the groove of the corresponding inner circle of annular mounting cylinder.
The coal winning machine mechanical electronic hydraulic compound short distance transmission system of the present embodiment, its load can be born by single gear ring or two gear rings according to different operating mode, the shunting realizing power with conflux, thus the requirement of output power and bearing capacity under meeting different operating mode; Compared with same level coal winning machine transmission system in prior art, its structure is simple, volume is little, damping performance is good, bearing capacity is strong, therefore larger space can be reserved for other devices in coal winning machine, and reduce material and manufacture cost, improve transmission system reliability, thus reduce maintenance and the cost of overhaul; Compared with prior art, identical transmission condition underdrive chain shortens greatly, reduces the loss of energy in transmission process, energy saving.
The present embodiment operationally has following working state:
Operating mode one: output gear II 8 and output gear I 13 are connected and form duplex ring gear, transmission of power is given respective input sun gear II 4 by two groups of auxiliary power input assemblys 2 respectively, and then through respective output planetary gear II 6, transmission of power is exported to cutterhead to output gear II 8, thus realizing the transmission of power of operating mode one, it is less demanding and have higher transmission efficiency or input as stand-by power that operating mode one is adapted to bearing capacity.
Operating mode two: output gear II 8 is not locked and break 20 is in closed state, input sun gear I 10 is in braking, transmission of power is given respective input sun gear II 4 by two groups of auxiliary power input assemblys 2 respectively, and then take turns II 6 by transmission of power to duplex planet frame gear 12 through respective output planetary, power passes to output planetary gear I 11 by duplex planet frame gear 12, output power to cutterhead finally by output gear I 13, thus realize the transmission of power of operating mode two, operating mode two is adapted to the larger medium-sized bearing capacity operating mode of velocity ratio or inputs as stand-by power.
Operating mode three: output gear II 8 and output gear I 13 are connected and form duplex ring gear, transmission of power is given input sun gear I 10 by active force input assembly 1, duplex ring gear is exported by duplex planet frame gear 12 to via output planetary gear II 6 again through output planetary gear I 11, by the shunting action of planetary gear speed-changing system, power passes to cutterhead by duplex ring gear, thus realizing the transmission of power of operating mode three, this operating mode is adapted to larger medium-sized (or higher) the bearing capacity operating mode of velocity ratio or inputs as stand-by power.
Operating mode four: output gear II 8 is not locked and break 20 is in disengaged position, transmission of power is given respective input sun gear II 4 by two groups of auxiliary power input assemblys 2 respectively, again through output planetary gear II 6 by transmission of power to duplex planet frame gear 12, simultaneously, transmission of power is given input sun gear I 10 by active force input assembly 1, input sun gear I 10 and duplex planet frame gear 12 turn to identical, due to the differential action of planetary gear speed-changing system, power passes to output planetary gear I 11 by input sun gear I 10 and duplex planet frame gear 12 respectively, finally output power to cutterhead by output gear I 13, thus realize the transmission of power of operating mode four, operating mode four is adapted to bearing capacity and all higher operating mode of efficiency.
Operating mode five: output gear II 8 is not locked and break 20 is in disengaged position, transmission of power is given respective input sun gear II 4 by two groups of auxiliary power input assemblys 2 respectively, again through output planetary gear II 6 by transmission of power to duplex planet frame gear 12, simultaneously, transmission of power is given input sun gear I 10 by active force input assembly 1, input sun gear I 10 and duplex planet frame gear 12 turn on the contrary, due to the differential action of planetary gear speed-changing system, power passes to output planetary gear I 11 by input sun gear I 10 and duplex planet frame gear 12 respectively, finally output power to cutterhead by output gear I 13, thus realize the transmission of power of operating mode five, operating mode five is adapted to the higher operating mode of bearing capacity.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. a coal winning machine mechanical electronic hydraulic compound short distance transmission system, is characterized in that: comprise power system, variable ratio drive system and housing; Described power system comprises main power plant and auxiliary power unit; Described main power plant comprises active force input assembly and input sun gear I; Described auxiliary power unit comprises auxiliary power input assembly, input sun gear II and output planetary gear II; Described variable ratio drive system comprises output planetary gear I, duplex planet frame gear and the output gear I for driving coal winning machine cutterhead to rotate; The clutch end of described active force input assembly coordinates in circumferencial direction transmission with input sun gear I, and the clutch end of described auxiliary power input assembly coordinates in circumferencial direction transmission with input sun gear II; Described input sun gear I engages with output planetary gear I, described output planetary gear I and output gear I internal messing; Described duplex planet frame gear one end is the planet carrier of output planetary gear I, and the other end is gear end; Described output planetary gear II is duplicate gear, and the gear of its input end engages with input sun gear II, and the gear of its output terminal engages with the gear end of duplex planet frame gear, and the planet carrier of described output planetary gear II is fixedly installed on housing.
2. coal winning machine mechanical electronic hydraulic compound short distance transmission system according to claim 1, it is characterized in that: described variable ratio drive system also comprises output gear II and the lockable mechanism for fixing or be separated output gear I and output gear II, described output gear II is provided with internal tooth and external tooth, the internal tooth of described output gear II engages with the gear of output end of output planetary gear II, and the described external tooth of output gear II engages with the flank profil on lockable mechanism.
3. coal winning machine mechanical electronic hydraulic compound short distance transmission system according to claim 1, is characterized in that: the active force input assembly of described power system is motor, and auxiliary power input assembly is oil hydraulic motor.
4. coal winning machine mechanical electronic hydraulic compound short distance transmission system according to claim 1, is characterized in that: the clutch end of described active force input assembly is provided with break.
5. coal winning machine mechanical electronic hydraulic compound short distance transmission system according to claim 1, is characterized in that: described output gear I is provided with for saving with the tubular that coal winning machine cutter head support is fixedly connected with in a circumferential direction.
6. coal winning machine mechanical electronic hydraulic compound short distance transmission system according to claim 1, is characterized in that: also comprise shock mitigation system, and described shock mitigation system comprises and the annular mounting cylinder of rocker arm of coal mining machine one and the vibration damper that is arranged between annular mounting cylinder and housing.
7. coal winning machine mechanical electronic hydraulic compound short distance transmission system according to claim 6, it is characterized in that: described housing integral installation is in annular mounting cylinder, described vibration damper one end is fixedly installed on housing cylindrical, and the other end is fixedly installed in the groove of the corresponding inner circle of annular mounting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061694.XA CN103821885B (en) | 2014-02-24 | 2014-02-24 | Coal winning machine mechanical electronic hydraulic compound short distance transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061694.XA CN103821885B (en) | 2014-02-24 | 2014-02-24 | Coal winning machine mechanical electronic hydraulic compound short distance transmission system |
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| Publication Number | Publication Date |
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| CN103821885A CN103821885A (en) | 2014-05-28 |
| CN103821885B true CN103821885B (en) | 2016-03-23 |
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| CN201410061694.XA Expired - Fee Related CN103821885B (en) | 2014-02-24 | 2014-02-24 | Coal winning machine mechanical electronic hydraulic compound short distance transmission system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500062B (en) * | 2014-12-04 | 2016-08-17 | 重庆大学 | Winning machine cutting part actuating unit |
| CN107152511A (en) * | 2017-06-14 | 2017-09-12 | 重庆大学 | Hybrid mechanical-hydraulic is combined buncher |
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|---|---|---|---|---|
| DE3827693A1 (en) * | 1988-08-16 | 1990-02-22 | Eickhoff Geb | Winch for a mining machine, in particular for a shearer loader in underground use |
| US5779321A (en) * | 1996-11-12 | 1998-07-14 | Arch Technology Corporation | Swing tail assembly for miner |
| CN2426014Y (en) * | 2000-03-07 | 2001-04-04 | 西安科技学院 | Torsion impact type vibration cutting mechamism |
| CN1912423A (en) * | 2006-08-25 | 2007-02-14 | 李本平 | Electromechanical liquid mixed soft start stepless speed regulating drive device |
| DE102009017061A1 (en) * | 2009-04-01 | 2010-10-07 | A + M Fertigungstechnik Gmbh | transmission |
| CN202645553U (en) * | 2012-06-29 | 2013-01-02 | 中国铁建重工集团有限公司 | Built-in type cutting transmission device for anchor all-in-one machine |
| CN202971771U (en) * | 2012-12-11 | 2013-06-05 | 大连理工大学 | Electromechanical-hydraulic combined type tunneling machine main driving system |
| CN103174416A (en) * | 2013-03-14 | 2013-06-26 | 中国矿业大学 | Multi-point driving electric traction coal mining machine |
-
2014
- 2014-02-24 CN CN201410061694.XA patent/CN103821885B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3827693A1 (en) * | 1988-08-16 | 1990-02-22 | Eickhoff Geb | Winch for a mining machine, in particular for a shearer loader in underground use |
| US5779321A (en) * | 1996-11-12 | 1998-07-14 | Arch Technology Corporation | Swing tail assembly for miner |
| CN2426014Y (en) * | 2000-03-07 | 2001-04-04 | 西安科技学院 | Torsion impact type vibration cutting mechamism |
| CN1912423A (en) * | 2006-08-25 | 2007-02-14 | 李本平 | Electromechanical liquid mixed soft start stepless speed regulating drive device |
| DE102009017061A1 (en) * | 2009-04-01 | 2010-10-07 | A + M Fertigungstechnik Gmbh | transmission |
| CN202645553U (en) * | 2012-06-29 | 2013-01-02 | 中国铁建重工集团有限公司 | Built-in type cutting transmission device for anchor all-in-one machine |
| CN202971771U (en) * | 2012-12-11 | 2013-06-05 | 大连理工大学 | Electromechanical-hydraulic combined type tunneling machine main driving system |
| CN103174416A (en) * | 2013-03-14 | 2013-06-26 | 中国矿业大学 | Multi-point driving electric traction coal mining machine |
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| CN103821885A (en) | 2014-05-28 |
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