CN103670404A - Method and device for driving a chain transmission and a chain clutch - Google Patents
Method and device for driving a chain transmission and a chain clutch Download PDFInfo
- Publication number
- CN103670404A CN103670404A CN201310421155.8A CN201310421155A CN103670404A CN 103670404 A CN103670404 A CN 103670404A CN 201310421155 A CN201310421155 A CN 201310421155A CN 103670404 A CN103670404 A CN 103670404A
- Authority
- CN
- China
- Prior art keywords
- chain
- clutch
- latch
- pressure
- drive motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices
- E21C31/06—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices actuated by an endless cable or chain
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/14—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains by haulage cable or chain pulling the machine along the working face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/20—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains with safety devices operating in the event of breakage of the cable or chain
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Control Of Transmission Device (AREA)
- Transmission Devices (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The invention relates to a method and a device for driving a chain drive and a chain clutch. In the case of a method for driving a chain drive, an applicable clutch is provided between the drive motor and the chain driven by the drive motor in order to transmit the desired torque from the drive motor to the sprocket, whereby the torque transmittable by the clutch is selected appropriately.
Description
The present invention relates to the method and apparatus for drive chain transmission device, and for the chain arrangement of clutch of the chain and sprocket driving device of underground mine.
This type of chain and sprocket driving device is known to be mainly used in underground mine, and for example for driving at underground mining machine (such as coal plough or cylinder and conveyer belt).Have frequency controllable motor and high performance transmission device and be for example used as for the drive apparatus of coal plough, wherein the peaceful slow-start of load balance (Lastausgleich) can be born by motor.Certainly, chain (mining machine uses this chain to be moved forward and backward) is necessary protected can dynamic overload.Described overload produces by the kinetic energy of storing in motor, gearbox, clutch, sprocket wheel (Kettenstern) and chain.
The chain being employed in practice can stand the dynamic force higher than 1000kN, and wherein drive motor can not be delivered to the power of 250kN on chain constantly.The in the situation that of overload, transmit the maximum power that is about 500kN.Yet occur in practice, chain is pulled off the in the situation that of overload, and this is that the kinetic energy of storing in chain, gearbox and motor causes.Chain by unexpected overload, will cause mining machine to suspend, thereby the power in chain is enhanced by inertia mass, until may disconnect.
In order to address this problem, known in the prior art, between gearbox and sprocket wheel, clutch is installed.And this clutch is normally fixing, that is to say, it can not be changed at mining machine run duration, or this clutch is understood to skid continuously and works (Schlupf), and is regulated at a high speed continuously.Equally, according to prior art, be known that on mining machine, there is snubber
or there is a chain member (Kettenglieder) of the stressed limit.This class component can not provide enough protections, and this is because this class component must apply the power of being transmitted by chain.The stroke of snubber is generally not enough.The in the situation that of overload, there is the chain member of the stressed limit often to keep in repair.
Task of the present invention is, invent a kind of method for drive chain transmission device, a kind of equipment of carrying out the method, and a kind of chain arrangement of clutch of the chain and sprocket driving device for underground mine, by means of the method, equipment and chain arrangement of clutch can be with cheaply, simple and reliable mode prevents that chain from pulling apart the overload in the situation that.
According to a first aspect of the invention, this task solves by the chain arrangement of clutch of the chain and sprocket driving device for underground mine, this chain arrangement of clutch comprises the clutch housing that can be connected with the building block for the treatment of transmission, this clutch housing has chain passage and a plurality of latch, and described latch can be pressed in chain passage by hydraulic pressure.
It is upper that this type of chain arrangement of clutch can be fixed to mining machine (for example coal plough) with its clutch housing, and wherein driving-chain can be conducted through chain passage.By means of can hydraulic pressure being pressed into latch in chain passage, can carry out friction fit (reibschl ü ssig) between mining machine and chain and/or the coupling of form fit, thereby this mining machine and the chain being transmitted are coupled securely.Yet, because latch can be pressed in chain passage by hydraulic pressure, allow to select or be arranged on the pressure on latch, make described latch be subject to respect to current hydraulic pressure, in the effect of the relative power of height between mining machine and the chain being transmitted, from chain passage, be forced out.In other words, can reversibly carry out latch to be pressed in chain passage and from chain passage and to extrude, wherein latch is pressed in chain passage and is completed by hydraulic pressure, and latch extrude is automatically to realize when the predetermined force having reached between chain and mining machine from chain passage.
Can be configured for very simply latch to be pressed into the hydraulic system of chain passage, wherein whole building blocks of hydraulic system can be installed on clutch housing, in clutch housing or be arranged in the region of clutch housing, and move together with mining machine thus.
Favourable embodiment of the present invention is described to some extent in manual, accompanying drawing and dependent claims.
According to the first favourable embodiment, for transmission latch can arrange hydraulic energy storage device, it is connected with latch by pipe-line system, and described pipe-line system has formed the system of sealing especially.Thus, in very simple mode, produced the hydraulic transmission for single latch, it can move together with mining machine.
The embodiment favourable according to another, latch or preferably all latch can be exerted pressure by a pressure lock valve that can arrange respectively.The confining force of each latch is arranged and is configured to reach required confining force thus individually.
The embodiment favourable according to another arranges block (Anschlag) in clutch housing or on clutch housing, this stop limits each latch being pressed in chain passage.In simple mode, guaranteed that each latch only reaches predetermined maximum stroke thus, and can be pressed into too far chain passage and cause no longer realizing the glitch-free of latch and return.
In order to be conducive to realize the outside movement (Hinausbewegen) of single latch when reaching maximum confining force, each latch can have stop plunger, and it is designed to is that tilt or conical at least partly.For this type of embodiment, when the power between chain and latch is large, must surpass by hydraulic pressure on latch during applied force, single chain member resists current hydraulic pressure and each latch is pushed back in the latch guiding device under it.
When the cross section of chain passage and the cross section profile of chain match, that is to say, its cross section has criss-cross profile substantially, can in chain passage, realize the guiding of the chain being limited well, thereby limited single latch can be engaged in chain.
The embodiment favourable according to another, can be designed to chain arrangement of clutch, can at least one chain member, use a plurality of latch.Can reduce to be by this way applied on chain and by chain and to be applied to the power on latch by single latch.
According on the other hand, this basic task solves by the method at underground mine drive chain transmission device, wherein between drive motor and the chain by this drive motor transmission, applicable clutch is set, to desired torque is delivered to sprocket wheel from drive motor.At this, according to the present invention when starting drive motor for the torque that can transmit by clutch is selected maximum value, and the torque of only being transmitted by clutch after reaching predetermined motor revolution just can reduce.
The method according to this invention is based on following understanding, and the drive motor using in practice has unique torque change procedure.In general, this type of drive motor when starter is until all can produce constant torque before reaching predetermined number of revolutions, and this torque can reduce after reaching predetermined number of revolutions.The method according to this invention makes full use of these advantages, and the torque of being transmitted by clutch is arranged highlyer, and the mechanical organ of motor driven (and by) do not have high kinetic energy as long as motor.Yet as long as motor reaches predetermined revolution and the torque reduction of its generation, the torque of being transmitted by clutch declines, and the damage to whole system can not occur thus the in the situation that of overload.Preferably select this type of a revolution as predetermined motor revolution, the torque being produced by drive motor when reaching this predetermined motor revolution is subject to the restriction (bauartbedingt) of make and reduces.
Finally, task according to the present invention solves by a kind of equipment, and described equipment comprises transmission device, and this transmission device has the clutch that can operate by piston hydraulic pressure.In addition, arrange pressure interface, at least one water pressure energy storage device (Hydrospeicher) and between pressure interface and piston can release flap valve, wherein control electronic installation and be connected with at least one magnet valve, so that the pressure of control piston applies.This type of can realize with the simple type identifier element of being used in underground mine according to control appliance of the present invention.For this reason, do not need immediate action valve or the proportional valve playing a role, this has reduced manufacturing cost simultaneously.
According to favourable embodiment of equipment according to the present invention, the assembly that can be connected with continuously choke valve and consist of choke valve and flap valve between pressure interface and piston, raises and pressure decreased to the pressure of piston can be set separately.
The embodiment favourable according to another, two water pressure energy storage devices can be set, i.e. water pressure energy storage device in pressure interface region (even if it also can maintenance work in the situation that supplying with pressure decreased), an and water pressure energy storage device (using it can stablize controlled pressure) in piston area.
Next, according to favourable embodiment and with reference to appended accompanying drawing, carry out the pure the present invention that exemplarily describes.Wherein show:
Fig. 1 shows the explanatory view of the chain and sprocket driving device in underground mine;
Fig. 2 shows by the cross section of chain arrangement of clutch;
Fig. 3 shows by the longitudinal section of the chain arrangement of clutch of Fig. 2; And
Fig. 4 shows the equipment for Quality Initiative transmission device.
Fig. 1 shows the layout of chain and sprocket driving device, and the building block being wherein transmitted is in the embodiment shown coal plough 10.Shown in chain and sprocket driving device constructed symmetrically, wherein the second transmission device (it is to construct with the identical mode shown in Fig. 1) is not shown in the drawings.At the chain and sprocket driving device shown in Fig. 1, comprise drive motor 12, it carrys out drive sprocket 16 by gearbox 14, wherein between gearbox 14 and sprocket wheel 16, clutch 18 is set.Another clutch 20 is set in the region of coal plough 10.This clutch will be described in detail according to Fig. 2 and 3, and different from clutch 18, and this clutch is that be fixedly installed or uncontrollable.
At the chain arrangement of clutch shown in Fig. 2 and 3, comprise clutch housing 22, it has (interconnective) matrix part 24 and guide member 26, and the two is fixed on coal plough 10.At this, guide member 26 has chain passage 28, and it has criss-cross cross section substantially, and the chain 15 that its chain member is 15a and 15b is conducted through this chain passage 28.
In the matrix part 24 of clutch housing 22, a plurality of latch 30 are arranged on respectively in perforation 32 movably, wherein can to perforation, apply hydraulic fluid by interface 34.Therefore, when applying hydraulic pressure, each latch 30 moves up in the side of chain passage 28 in its perforation, until this latch 30 is resisted against on block 38 with its annular flange 36, described block is installed in the region of guide member 26, and it prevents that latch 30 is further pressed in chain passage 28.
As shown in Figure 3, a plurality of latch are installed in clutch housing 22 or in matrix part 24, for illustrated embodiment example, as 17 latch are installed side by side, wherein each interface 34 is connected with pipe-line system 40, and described pipe-line system 40 is designed to the system of sealing.
Pipe-line system 40 comprises service 42, is connected with hydraulic energy storage device 44 thereon, the pressure lock valve 48 that is wherein connected in parallel to flap valve 46 and can arranges between service 42 and each interface 34.
Select quantity and the net grid of latch 30, make increasing latch 30 be used (angestellt) on chain member 15a or 15b.By means of hydraulic energy storage device 44, provide minimum pressure, about 10 bar for example, thus make all latch 30 be pressed out to block 38 or be pressed in chain passage, until it touches chain member 15a or 15b.By means of flap valve 46, will prevent from refluxing by same paths.Yet when latch 30 is pushed back in its perforation 32 by chain 12, when chain 15 is moved further in the direction of arrow (Fig. 3), underground although mining machine 10 is fixed on, each piston 30 is pushed back in its perforation.Yet pressure lock valve 48 is set to high desired pressure, be for example respectively about 100 bar, therefore defined and must be applied to the power on chain to move with respect to clutch housing.
In order to be conducive to realize, by single chain member, push back latch 30, each latch has stop plunger 31, and it is designed to is conical and has rounded tip.Can when realizing previously selected power, single latch be pushed back clutch housing from chain member interference-free thus, so chain arrangement of clutch is opened, that is to say, chain slides through chain passage 28.
Fig. 4 shows a kind of for realizing the equipment of the method according to this invention, this equipment has for (DN10) supplying with the interface 50 of pressure by breast stoping work plane hydraulic pressure (Strebhydraulik), and it can be integrated in the assembly flange (Montageflansch) of the housing of gearbox.After strainer 52, be provided with flap valve 54, it has avoided the backflow of pressure medium.In interface, on flap valve 54, be coupled with hydraulic energy storage device 56, when should declining pressure in breast stoping work plane, it can realize control.
After hydraulic energy storage device 56, have sensor 58, it is communicated to electric hydraulic control device 60 by inlet pressure.By means of the pressure gauge 62 being arranged in interface, can estimate the moment being passed.
Two magnet valves that are connected in parallel 64 and 66 are set afterwards, these magnet valves are controlled by control device 60, wherein magnet valve 64 has improved the pressure being applied on clutch 18, and magnet valve 66 releasing clutch 18, and this is that the pressure being applied on clutch plunger 68 by reduction is realized.
Two magnet valves 64 and 66 and flap valve 70 that can release interconnected, by means of this flap valve 70, keep or reduced the pressure being applied on clutch plunger 68.At this, skidding of clutch monitor by two sensor 74a and 74b, and these sensors are set to, and makes its signal generate Gray code (Gray-Code).By other sensor 72a and 72b monitor under the rotation of output shaft.
Use the said equipment produced wherein needn't quick adjustment clutch system.Power with the clutch disk generation pinched together of clutch 18 has defined transferable moment, according to the present invention, in moment described in when work, constantly adjusted, and it is set to higher when starting, and is set to lower for atwirl drive motor.Clutch 18 is not continuously but only in less desirable overload situations lower slider in when work.When work, its load limitations can simply change.
For the pressure of clutch can be set independently, raise and pressure decreased, magnet valve 64 with can between the flap valve 70 of release, the choke valve 82 being connected continuously and the shunt circuit being comprised of choke valve 84 and flap valve 86 be set.Therefore, pressure raises and can arrange independently by choke valve 82, and pressure decreased can arrange independently by choke valve 84.
Claims (13)
1. the chain arrangement of clutch for the chain and sprocket driving device of underground mine, described chain arrangement of clutch comprises the clutch housing (22) that can be connected with the building block (10) for the treatment of transmission, described clutch housing (22) has chain passage (28) and a plurality of latch (30), and described latch (30) can be pressed in described chain passage (28) by hydraulic pressure.
2. chain arrangement of clutch as claimed in claim 1, is characterized in that,
For latch described in transmission, hydraulic energy storage device is set, described hydraulic energy storage device is connected with described latch (30) by pipe-line system (40), the system that wherein said pipe-line system (40) is particularly sealed.
3. chain arrangement of clutch as claimed in claim 1 or 2, is characterized in that,
At least one latch (30), particularly all latch, can exert pressure by the pressure lock valve (48) that can arrange.
4. chain arrangement of clutch as claimed in claim 3, is characterized in that,
With each pressure lock valve (48), flap valve (46) is set in parallel.
5. the chain arrangement of clutch as described in aforementioned claim at least one, is characterized in that,
Block (38) is set, and described block (38) has limited each latch (30) being pressed in described chain passage (28).
6. the chain arrangement of clutch as described in aforementioned claim at least one, is characterized in that,
Described latch (30) has stop plunger, and it is that tilt at least partly or conical that described stop plunger is designed to.
7. the chain arrangement of clutch as described in aforementioned claim at least one, is characterized in that,
The cross section profile of the cross section of described chain passage (28) and chain (15) matches.
8. as the chain arrangement of clutch as described at least one in aforementioned claim, described chain arrangement of clutch has the chain (15) that is arranged in described chain passage (28),
It is characterized in that,
Can use a plurality of latch (30) at least one chain member (15a, 15b).
9. one kind for driving the method for the chain and sprocket driving device of underground mine, the clutch that can apply is wherein set at drive motor and between by the chain of described drive motor transmission, to desired torque is delivered to sprocket wheel from described drive motor, wherein when starting described drive motor, for the torque that can transmit by described clutch, select maximum value, and only after reaching predetermined motor revolution, reduce the torque transmitted by described clutch.
10. method as claimed in claim 9, is characterized in that,
Described predetermined motor revolution is to reach that the torque being produced by described drive motor is at that time subject to the restriction of make and the motor revolution that reduces.
11. 1 kinds are used in particular for carrying out according to the equipment of the method described in claim 9 or 10, and described equipment comprises:
Transmission device (12), it has can pass through piston (68) hydraulically operated clutch (18),
Pressure interface (50),
At least one water pressure energy storage device (56,78),
Flap valve (70) that can release, its between described pressure interface (50) and described piston (68), and
Control electronic installation (60), it is connected with at least one magnet valve (64,66), to control the pressure of described piston (68), applies.
12. equipment as claimed in claim 11, is characterized in that,
The assembly that is connected with continuously choke valve (82) and consists of choke valve (84) and flap valve (86) between described pressure interface (50) and described piston (68), raises and pressure decreased to pressure can be set individually.
13. equipment as described in claim 11 or 12, is characterized in that,
In the region of described pressure interface, be provided with water pressure energy storage device, and in the region of described piston, be provided with another water pressure energy storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453761.7A CN105134209B (en) | 2012-09-18 | 2013-09-16 | For driving the method and apparatus and chain arrangement of clutch of chain and sprocket driving device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012216673.4A DE102012216673B4 (en) | 2012-09-18 | 2012-09-18 | chain clutch |
| DE102012216673.4 | 2012-09-18 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453761.7A Division CN105134209B (en) | 2012-09-18 | 2013-09-16 | For driving the method and apparatus and chain arrangement of clutch of chain and sprocket driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103670404A true CN103670404A (en) | 2014-03-26 |
| CN103670404B CN103670404B (en) | 2016-08-17 |
Family
ID=50181668
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453761.7A Expired - Fee Related CN105134209B (en) | 2012-09-18 | 2013-09-16 | For driving the method and apparatus and chain arrangement of clutch of chain and sprocket driving device |
| CN201310421155.8A Expired - Fee Related CN103670404B (en) | 2012-09-18 | 2013-09-16 | Method and device for driving a chain transmission and a chain clutch |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453761.7A Expired - Fee Related CN105134209B (en) | 2012-09-18 | 2013-09-16 | For driving the method and apparatus and chain arrangement of clutch of chain and sprocket driving device |
Country Status (5)
| Country | Link |
|---|---|
| CN (2) | CN105134209B (en) |
| CZ (1) | CZ306916B6 (en) |
| DE (1) | DE102012216673B4 (en) |
| PL (1) | PL219070B1 (en) |
| RU (1) | RU2576544C2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1005019B (en) * | 1952-10-29 | 1957-03-28 | Carbo Strebbau Ges Dr Ing Von | Extraction device that is designed as a planing or peeling device and is moved by an endless traction device via releasable coupling bodies |
| GB1513039A (en) * | 1975-10-15 | 1978-06-01 | Pitcraft Ltd | Mining equipment |
| US4416643A (en) * | 1980-02-08 | 1983-11-22 | Halbach & Braun | Planar drive device |
| DE3714430A1 (en) * | 1987-04-30 | 1988-11-17 | Bergwerksverband Gmbh | Anti-locking means for plough systems |
| CN2589744Y (en) * | 2002-12-28 | 2003-12-03 | 章新 | Clutch of door opening machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB938268A (en) * | 1959-10-28 | 1963-10-02 | Ostroj | Apparatus for moving a coal cutting machine along a coal face |
| DE2643264C3 (en) * | 1976-09-25 | 1982-11-04 | Fa. August Thiele, 5860 Iserlohn | Holding device for the plow chain on coal plows |
| SU1084440A1 (en) * | 1983-01-10 | 1984-04-07 | Всесоюзный научно-исследовательский и проектно-конструкторский угольный институт "КНИУИ" | Arrangement for arresting the traction chain of stoping cutter-loader |
| CS233174B1 (en) * | 1983-09-02 | 1985-02-14 | Josef Travnicek | ) Catch the continuous harvester chain |
| DE3442425A1 (en) * | 1984-11-20 | 1986-05-22 | Kopalnia Węgla Kamiennego MARCEL Wodzisław Sląski, Wodzisław | Device for securing a rock-excavating machine used in mining |
| SU1458568A1 (en) * | 1986-05-26 | 1989-02-15 | Ворошиловградский Филиал Шахтинского Научно-Исследовательского И Проектно-Конструкторского Угольного Института Им.А.М.Терпигорева | Mining machine drive |
| SU1525272A1 (en) * | 1988-01-18 | 1989-11-30 | Научно-исследовательский и проектно-конструкторский институт по добыче полезных ископаемых открытым способом | Arrangement for controlling advance of mine cutter-loader |
| SU1710461A1 (en) * | 1990-04-16 | 1992-02-07 | Стахановский Филиал Коммунарского Горно-Металлургического Института | Method of equalizing loads in conveyer drive with the motors |
| US5402879A (en) * | 1992-12-12 | 1995-04-04 | Dorstener Maschinenfabrik Aktiengesellschaft | Drive system for flight conveyors and method of operating same |
| CN1070272C (en) * | 1994-05-18 | 2001-08-29 | Dbt德国采矿技术有限公司 | Driving gear for use in coal planer or working face transport machine |
| DE4424790A1 (en) * | 1994-07-14 | 1996-01-18 | Bosch Gmbh Robert | Hydraulic emergency control for a friction clutch arranged between an internal combustion engine and a transmission |
| DE10340593B4 (en) * | 2003-09-01 | 2016-01-21 | Caterpillar Global Mining Europe Gmbh | Drive device for chain stars of chain drives |
| RU2272190C2 (en) * | 2004-05-06 | 2006-03-20 | Закрытое акционерное общество "Электон" | Starting clutch |
| DE102005020170B4 (en) * | 2005-04-28 | 2016-06-02 | Caterpillar Global Mining Europe Gmbh | Planing device and method for controlling a planing device |
| DE102005036359A1 (en) * | 2005-07-29 | 2007-02-01 | Dbt Gmbh | Method for recovering coal comprises using a coal planing device having a coal plane which moves to and fro between a drive station and a reversing station with a reversing chain wheel |
| US7578376B2 (en) * | 2006-08-24 | 2009-08-25 | Gm Global Technology Operations, Inc. | Latched-pump applied clutch |
-
2012
- 2012-09-18 DE DE102012216673.4A patent/DE102012216673B4/en not_active Expired - Fee Related
-
2013
- 2013-09-16 CN CN201510453761.7A patent/CN105134209B/en not_active Expired - Fee Related
- 2013-09-16 PL PL405375A patent/PL219070B1/en unknown
- 2013-09-16 CN CN201310421155.8A patent/CN103670404B/en not_active Expired - Fee Related
- 2013-09-17 RU RU2013142427/03A patent/RU2576544C2/en not_active IP Right Cessation
- 2013-09-17 CZ CZ2013-707A patent/CZ306916B6/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1005019B (en) * | 1952-10-29 | 1957-03-28 | Carbo Strebbau Ges Dr Ing Von | Extraction device that is designed as a planing or peeling device and is moved by an endless traction device via releasable coupling bodies |
| GB1513039A (en) * | 1975-10-15 | 1978-06-01 | Pitcraft Ltd | Mining equipment |
| US4416643A (en) * | 1980-02-08 | 1983-11-22 | Halbach & Braun | Planar drive device |
| DE3714430A1 (en) * | 1987-04-30 | 1988-11-17 | Bergwerksverband Gmbh | Anti-locking means for plough systems |
| CN2589744Y (en) * | 2002-12-28 | 2003-12-03 | 章新 | Clutch of door opening machine |
Also Published As
| Publication number | Publication date |
|---|---|
| PL405375A1 (en) | 2014-03-31 |
| CN103670404B (en) | 2016-08-17 |
| DE102012216673A1 (en) | 2014-03-20 |
| CZ306916B6 (en) | 2017-09-13 |
| DE102012216673B4 (en) | 2016-05-19 |
| CZ2013707A3 (en) | 2014-03-26 |
| CN105134209A (en) | 2015-12-09 |
| RU2013142427A (en) | 2015-03-27 |
| CN105134209B (en) | 2018-03-06 |
| PL219070B1 (en) | 2015-03-31 |
| RU2576544C2 (en) | 2016-03-10 |
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