CN102116151B - Continuous miner and cutting speed reducer thereof - Google Patents
Continuous miner and cutting speed reducer thereof Download PDFInfo
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- CN102116151B CN102116151B CN201110045426A CN201110045426A CN102116151B CN 102116151 B CN102116151 B CN 102116151B CN 201110045426 A CN201110045426 A CN 201110045426A CN 201110045426 A CN201110045426 A CN 201110045426A CN 102116151 B CN102116151 B CN 102116151B
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Abstract
The invention discloses a cutting speed reducer, which comprises two symmetrically-arranged speed reduction devices (1), wherein the two speed reduction devices (1) are used for synchronously transmitting power and comprise two cutting main shafts (11) distributed in a straight line and a connection sleeve (12) arranged between the two cutting main shafts (11); the two cutting main shafts (11) are connected to the output ends of the two speed reduction devices (1) respectively and are connected with each other through the connection sleeve (12); and a bearing (13) and a floating seal (14) of the speed reduction devices (1) are sleeved on the inner sides of the two cutting main shafts (11). The cutting speed reducer has a simple assembly; and after easily-damaged parts such as the bearing inside the cutting speed reducer and the like are damaged, the damaged parts can be exchanged under a mine so as to reduce the cost. The invention also discloses a continuous miner, which comprises a cutting part (5), wherein the cutting speed reducer is used in the cutting part (5); and the continuous miner has a corresponding technical effect.
Description
Technical field
The present invention relates to the mining machinery technical field, relate in particular to a kind of cut reducer that is used for continuous miner.The invention still further relates to a kind of continuous miner that comprises above-mentioned cut reducer.
Background technology
Along with the fast development of China's economic construction, coal industry constantly develops towards the direction of mechanization, automation, and comprehensive mechanical coal mining equipment is applied among the coal production of various geological conditionss more and more widely.
Continuous miner is the performing comprehensive coal mining equipment that integrates tunnelling and mine that the colliery is used; It comprises cutting units, transfers running part, Load System and spray for dust suppression system etc.; After being equipped with shuttle car, ribbon conveyer and bolt support, can realize comprehensive mechanical coal mining.The cutting units of continuous miner mainly comprises cutterhead, cut motor and cut reducer, and during work, the cut motor drives the cutterhead rotation through the cut reducer, utilizes the broken coal petrography of the pick that is contained on the cutterhead.
Please refer to Fig. 1, Fig. 1 is the schematic cross-section of the cut reducer of continuous miner in the prior art; Briefly introduce the defective that this cut reducer exists in the course of the work below.
In the prior art, as shown in Figure 1, this cut reducer comprise two symmetrically arranged deceleration devices 1 ', this two deceleration devices 1 ' all through drive disk assembly with the long transverse axis 11 of transmission of power to an integral body '.This cut reducer when mounted, successively from long transverse axis 11 ' the centre to its both sides install intermediate sleeve 12 ', support set 13 ', rolling bearing 14 ' and floating seal 15 ' etc. intermediate member, adopt at last the long transverse axis 11 of end cap seal ' both sides.Its power transmission process is: cut deceleration device 1 ' input receive the motive power that motor transmits; Through spur gear 16 ', bevel gear 17 ' and 18 ' three grades of decelerations of planetary gear after; With transmission of power give long transverse axis 11 ', the cutterhead of long transverse axis 11 ' drive cutting units rotates.
Because the complicated geological condition in colliery, usually cause very big impact during the hard rock of continuous miner cut, the rolling bearing 14 that a large amount of dusts also can be inner to the cut reducer ', floating seal 15 ' etc. parts cause damage.Above-mentioned cut reducer bearing, floating seal 15 ' etc. after the parts damages; Need be with whole long transverse axis 11 ' disassemble and to take out, keep in repair and change part; And condition under coal mine and space are all very limited; Can't disassemble, will directly change the cut reducer, cause maintenance cost very expensive.
Therefore; How on the basis of existing technology; Improve the structure of cut reducer, make it under the situation of parts damages such as internal bearings, floating seal, can the more convenient replacing of completion damaged part under mine apace; Reducing maintenance cost, is that those skilled in the art are badly in need of the technical problem that solves at present.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of cut reducer, after the parts damages such as bearing, floating seal of portion within it of this cut reducer, can conveniently under mine, accomplish the replacing of damaged part, reduces maintenance cost.Another technical problem that the present invention will solve is that a kind of continuous miner that comprises above-mentioned cut reducer is provided.
For solving the problems of the technologies described above, the present invention provides a kind of cut reducer, comprises two symmetrically arranged deceleration devices, and two said deceleration devices are transferring power synchronously; Two said deceleration devices comprise linear distributing two cut main shafts and are located at two coupling sleeves between the said cut main shaft; Two said cut main shafts are connected to the output of two said deceleration devices, and connect through said coupling sleeve; The inboard of two said cut main shafts all is set with the bearing and the floating seal of said deceleration device.
Preferably, the inner end of two said cut main shafts all is set with bracing frame, and the end face of said inner end also is fixedly connected with baffle plate, and said baffle plate level compresses support frame as described above; Between the floating seal frame of the outside of support frame as described above and said cut deceleration device the slit is arranged, the inside in said slit is provided with said floating seal; Said coupling sleeve connects two said cut main shafts through support frame as described above, and the width of said coupling sleeve is greater than the width of support frame as described above.
Preferably, the inwall end face of support frame as described above is provided with protruding ring, and said baffle plate and said cut main shaft are provided with the groove that cooperates with said protruding ring in the relevant position, and said baffle plate is connected through bolt with said cut main shaft.
Preferably, be provided with sealing ring between the said protruding ring of support frame as described above and the said cut main shaft.
Preferably, said coupling sleeve comprises first coupling sleeve and second coupling sleeve of mutual applying, and the outer face of said first coupling sleeve and said second coupling sleeve all is connected in the end face of support frame as described above through key; Said first coupling sleeve is fixedly connected through securing member with said second coupling sleeve.
Preferably, the binding face of said first coupling sleeve and said second coupling sleeve is perpendicular to the end face of said cut main shaft, and the end face of said first coupling sleeve and said second coupling sleeve all is semi-circular.
Preferably, said first coupling sleeve all is connected with the end face of support frame as described above through symmetrically arranged 4 said keys with said second coupling sleeve.
Preferably, said first coupling sleeve is connected through a plurality of bolt at the binding face place with said second coupling sleeve.
The present invention also provides a kind of continuous miner, comprises cutting units; Said cutting units adopts above-mentioned cut reducer.
Cut reducer provided by the invention, its two deceleration devices comprise linear distributing two cut main shafts and are located at two coupling sleeves between the cut main shaft; Two cut main shafts are connected to the output of two deceleration devices, and connect through coupling sleeve; The inboard of two cut main shafts all is set with the bearing and the floating seal of deceleration device.
This split shaft cut reducer; Can install the outer end of two cut main shafts when mounted earlier respectively; Then parts such as bearing, floating seal are put between two cut main shafts; And be set on two cut main shafts to both sides, at last coupling sleeve is fixedly connected between two cut main shafts.The prior art of comparing; When inner members such as the bearing in the middle of the cut reducer, floating seal damage, needn't dismantle two cut main shafts, only need the links such as coupling sleeve between two cut main shafts of dismounting; Just can easily take out, change the parts of damage; Need not change whole cut reducer, this just greatly facilitates the maintenance of the element such as bearing, floating seal of cut reducer middle part, the maintenance cost of having practiced thrift the cut reducer.
In addition, adopt the cut reducer of split shaft, compare bearing formula cut reducer; They are when installation and removal, and are lower to requirement of neutral, also do not need very big installing space; This make the cut reducer assembling and the dismounting simpler, reduced the apparatus maintenance time.
Because above-mentioned cut reducer has above-mentioned useful technique effect, therefore, comprises that the continuous miner of this cut reducer also should have the corresponding techniques effect, repeats no more at this.
Description of drawings
Fig. 1 is the schematic cross-section of the cut reducer of continuous miner in the prior art;
Fig. 2 is the structural representation of a kind of specific embodiment of cut reducer provided by the present invention;
Fig. 3 is coupling sleeve and the partial enlarged drawing of cut main shaft junction among Fig. 2;
Fig. 4 is the front view of the coupling sleeve among Fig. 2;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the structural representation of a kind of specific embodiment of continuous miner provided by the present invention.
Wherein, Reference numeral among Fig. 1 and the corresponding relation between the component names are: 1 ' deceleration device; 11 ' long transverse axis; 12 ' intermediate sleeve; 13 ' support set; 14 ' rolling bearing; 15 ' floating seal; 16 ' linear gear; 17 ' bevel gear; 18 ' planetary gear;
Reference numeral and the corresponding relation between the component names among Fig. 2 to Fig. 6 are: 1 deceleration device; 5 cutting units; 6 shovel boards; 7 running parts; 8 antifog dedusting portions; 9 transporters; 11 cut main shafts; 12 coupling sleeves; 13 bearings; 14 floating seals; 15 bracing frames; 16 baffle plates; 17 floating seal framves; 18 spur gears; 19 bevel gears; 10 planetary gears; 121 first coupling sleeves; 122 second coupling sleeves; 123 keys; 124 bolts; 151 protruding rings; 152 sealing rings.
The specific embodiment
Core of the present invention is for providing a kind of cut reducer; This cut reducer has changed the present situation of assembling difficulty; After consumable accessorys such as its inner bearing, floating seal damaged simultaneously, the more convenient replacing of under mine, accomplishing damaged part apace reduced maintenance cost.Another core of the present invention is that a kind of continuous miner that comprises above-mentioned cut reducer is provided.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of specific embodiment of cut reducer provided by the present invention.
In a kind of concrete embodiment, as shown in Figure 2, cut reducer provided by the present invention comprises that 1, two deceleration device 1 of two symmetrically arranged deceleration devices synchronously carries out transmission of power.Behind the power that the input reception motor of each deceleration device 1 sends, after 18 decelerations of one-level spur gear, 19 decelerations of secondary bevel gear and 10 decelerations of third-level planetary gear, output power.Two deceleration devices 1 comprise that two cut main shafts 11 and 12, two cut main shafts 11 of a coupling sleeve linearly distribute, and coupling sleeve 12 is located between two cut main shafts 11; Two cut main shafts 11 are connected to the output of two deceleration devices 1, and connect through coupling sleeve 12; The inboard of two cut main shafts 11 all is set with the bearing 13 and floating seal 14 of deceleration device 1.
This split shaft cut reducer; Can install the outer end of two cut main shafts 11 when mounted earlier respectively; Then parts such as bearing 13, floating seal 14 are put between two cut main shafts 11; And be set on two cut main shafts 11 to both sides, at last coupling sleeve 12 is fixedly connected between two cut main shafts 11.The prior art of comparing; When inner members such as the bearing 13 in the middle of the cut reducer, floating seal 14 damage; Needn't dismantle two cut main shafts 11, only need coupling sleeve 12 links such as grade between two cut main shafts 11 of dismounting, just can easily take out, change the parts of damage; Need not change whole cut reducer, this just greatly facilitates the maintenance of the element such as bearing 13, floating seal 14 of cut reducer middle part.
In addition, adopt the cut reducer of split shaft, compare bearing formula cut reducer; They are when installation and removal, and are lower to requirement of neutral, also do not need very big installing space; This make the cut reducer assembling and the dismounting simpler, reduced the apparatus maintenance time.
Need to prove; The foregoing description does not specifically limit the concrete connected mode of coupling sleeve 12 and two cut main shafts 11; In fact, every two cut main shafts 11 that comprise separation, and be connected with coupling sleeve 12 between two cut main shafts 11; And bearing 13 and floating seal 14 are set in the split shaft cut reducer of cut main shaft 11 inboards, all should work as to belong in protection scope of the present invention.
In addition; The noun of locality that occurs among this paper " interior " refers to the direction of being pointed to the center of coupling sleeve 12 by peripheral direction; The noun of locality " outward " refers to by the center of coupling sleeve 12 and points to direction all around; These nouns of locality confirm that with the accompanying drawing among this paper be that benchmark is set up, should be appreciated that their appearance should not influence protection scope of the present invention.
The connected mode of above-mentioned two cut main shafts 11 and miscellaneous part can also further be set.
Please refer to Fig. 3, Fig. 3 is the partial enlarged drawing of coupling sleeve 12 and cut main shaft 11 junctions among Fig. 2.
In the concrete embodiment of another kind, as shown in Figure 3, the inner end of two cut main shafts 11 all is set with bracing frame 15, and the end face of inner end also is fixedly connected with baffle plate 16, and baffle plate 16 levels compress bracing frame 15; Between the floating seal frame 17 of the outside of bracing frame 15 and cut reducer the slit is arranged, the inside in slit is provided with floating seal 14; Coupling sleeve 12 connects two cut main shafts through bracing frame 15, and the width of coupling sleeve 12 is greater than the width of bracing frame 15.
Adopt this structure; Component such as baffle plate 16, bracing frame 15 and floating seal frame 17 can form two independent seal chambers in the outside of two cut main shafts 11 respectively; Thereby form the independent lubricating system of two covers; The lubricating system of an integral body of the prior art of comparing, the independent lubricating system of two covers has reduced the lubricated space of each lubricating system, thereby has improved the inner lubricant effect of cut reducer.The width of the width of coupling sleeve 12 greater than bracing frame 15 is set here; Can guarantee bracing frame 15 in the process of installation and removal all the spaces in the middle of two cut main shafts 11 put into and install; Thereby guaranteed when the inner bearing 13 of cut reducer damages with floating seal 14; Can take out, change damaged part through dismantling the order of coupling sleeve 12, bracing frame 15, bearing 13 and floating seal 14 successively, just accomplished the part process of changing and need not to dismantle cut main shaft 11.
In concrete scheme, the inwall end face of above-mentioned bracing frame 15 can be provided with protruding ring 151, and baffle plate 16 can be provided with the groove that cooperates with protruding ring 151 with cut main shaft 11 in the relevant position, and baffle plate 16 and cut main shaft 11 are connected through bolt.In this way, realized that baffle plate 16 is fixedly connected on the inner face of cut main shaft 11, and baffle plate 16 compresses bracing frame 15, thereby guarantee that component such as baffle plate 16, bracing frame 15 and floating seal frame 17 form seal chambers.
Certainly; The form of structure that above-mentioned baffle plate 16 compresses bracing frame 15 is not limited to the form that protruding ring 151 matches with groove; Can also be other structures, for example the end face of bracing frame 15 can be disc structure, offer on this disc structure with baffle plate 16 on identical screwed hole; The bolt that is arranged on the baffle plate 16 passes baffle plate 16 and bracing frame 15 simultaneously, and baffle plate 16 and bracing frame 15 are fixed on the inner face of cut main shaft 11 simultaneously.Every bracing frame 15 is set in the inner end of cut main shaft 11, and baffle plate 16 compresses bracing frame 15, and is fixedly connected on the cut reducer of the inner face of cut main shaft 11, all should work as and belong to protection scope of the present invention.
In scheme more specifically, can also be provided with sealing ring 152 between the protruding ring 151 of above-mentioned bracing frame 15 and the cut main shaft 11.Adopt sealing ring 152, can make that the sealing effectiveness of the seal chamber that baffle plate 16, bracing frame 15 and floating seal frame 17 etc. form is better, avoid the leakage of lubricating fluid in the lubricating system.Certainly, this embodiment does not limit the specific constructive form of sealing ring 152, and sealing circle 152 can be specially O RunddichtringO, y-type seal ring and various combined seal rings etc.
The specific constructive form that above-mentioned two cut main shafts 11 connect through coupling sleeve 12 can also further be set.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the front view of the coupling sleeve among Fig. 2; Fig. 5 is the left view of Fig. 4.
In the concrete embodiment of another kind; Like Fig. 4 and shown in Figure 5; Above-mentioned coupling sleeve 12 can comprise that the end face of first coupling sleeve 121 and second coupling sleeve, 122, the first coupling sleeves 121 and second coupling sleeve 122 of mutual applying all is connected in the end face of bracing frame 15 through key 123; First coupling sleeve 121 is fixedly connected through securing member with second coupling sleeve 122.
Through straight end-face key 123 ways of connecting; Can realize being fixedly connected of first coupling sleeve 121 and second coupling sleeve 122; Make two cut main shaft 11 synchronized movement, and can prevent that two cut main shafts 11 from producing moment of torsion in rotary course, play good antitorque effect.
The specific constructive form and concrete shape of above-mentioned first coupling sleeve 121 and second coupling sleeve 122 can also further be set.
In further scheme, like Fig. 4 and shown in Figure 5, the binding face of above-mentioned first coupling sleeve 121 and second coupling sleeve 122 can be perpendicular to the end face of cut main shaft 11, and the end face of first coupling sleeve 121 and second coupling sleeve 122 all is semi-circular.Adopt this structure, can realize that first coupling sleeve 121 is connected with the straight end-face key 123 of second coupling sleeve 122 respectively at bracing frame 15, and first coupling sleeve 121 is fixedly connected through securing member with second coupling sleeve 122.Certainly, above-mentioned first coupling sleeve 121 and second coupling sleeve 122 are not limited to said structure, and the binding face of above-mentioned first coupling sleeve 121 and second coupling sleeve 122 can also be parallel to the end face of cut main shaft 11.
The number of the straight end-face key 123 of above-mentioned first coupling sleeve 121 and second coupling sleeve 122 can also further be set.
As shown in Figure 2, above-mentioned first coupling sleeve 121 all can be connected with the end face of bracing frame 15 through symmetrically arranged 4 keys 123 with second coupling sleeve 122.Adopt this structure, in two cut main shaft 11 rotary courses, stress balance, the working stability of first coupling sleeve 121, second coupling sleeve 122 and each connecting key 123 have further increased the functional reliability of structure reducer.
In addition; Above-mentioned first coupling sleeve 121 can be connected through a plurality of bolts 124 at binding face with second coupling sleeve 122; Adopt bolt to connect this most frequently used fixed connection mode; Simple in structure, can make the convenient processing and manufacture of the win coupling sleeve 121 and second coupling sleeve 122, can also be that other securing members connect certainly.
Please refer to Fig. 6, Fig. 6 structural representation for a kind of specific embodiment of continuous miner provided by the present invention.
As shown in Figure 6, the present invention also provides a kind of continuous miner, and this continuous miner comprises cutting units 5, shovel board 6, running part 7, antifog dedusting portion 8 and transporter 9, and cutting units 5 has adopted the cut reducer of said structure.
Because above-mentioned cut reducer has above-mentioned technique effect, therefore, comprises the continuous miner of this cut reducer, also should have the corresponding techniques effect, repeats no more at this.
More than a kind of continuous miner provided by the present invention and cut reducer thereof have been carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. a cut reducer comprises two symmetrically arranged deceleration devices (1), and two said deceleration devices (1) are transferring power synchronously; It is characterized in that two said deceleration devices (1) comprise linear distributing two cut main shafts (11) and are located at the coupling sleeve (12) between two said cut main shafts (11); Two said cut main shafts (11) are connected to the output of two said deceleration devices (1), and connect through said coupling sleeve (12); The inboard of two said cut main shafts (11) all is set with the bearing (13) and the floating seal (14) of said deceleration device (1).
2. cut reducer according to claim 1; It is characterized in that; The inner end of two said cut main shafts (11) all is set with bracing frame (15), and the end face of said inner end also is fixedly connected with baffle plate (16), and said baffle plate (16) level compresses support frame as described above (15); Between the floating seal frame (17) of the outside of support frame as described above (15) and said cut deceleration device (1) slit is arranged, the inside in said slit is provided with said floating seal (14); Said coupling sleeve (12) connects two said cut main shafts through support frame as described above (15), and the width of said coupling sleeve (12) is greater than the width of support frame as described above (15).
3. cut reducer according to claim 2; It is characterized in that; The inwall end face of support frame as described above (15) is provided with protruding ring (151); Said baffle plate (16) and said cut main shaft (11) are provided with the groove that cooperates with said protruding ring (151) in the relevant position, said baffle plate (16) is connected through bolt with said cut main shaft (11).
4. cut reducer according to claim 3 is characterized in that, is provided with sealing ring (152) between the said protruding ring (151) of support frame as described above (15) and the said cut main shaft (11).
5. according to each described cut reducer of claim 2-4; It is characterized in that; Said coupling sleeve (12) comprises first coupling sleeve (121) and second coupling sleeve (122) of mutual applying, and the outer face of said first coupling sleeve (121) and said second coupling sleeve (122) all is connected in the end face of support frame as described above (15) through key (123); Said first coupling sleeve (121) is fixedly connected through securing member with said second coupling sleeve (122).
6. cut reducer according to claim 5; It is characterized in that; The binding face of said first coupling sleeve (121) and said second coupling sleeve (122) is perpendicular to the end face of said cut main shaft (11), and the end face of said first coupling sleeve (121) and said second coupling sleeve (122) all is semi-circular.
7. cut reducer according to claim 6 is characterized in that, said first coupling sleeve (121) all is connected through the end face of symmetrically arranged 4 said keys (123) with support frame as described above (15) with said second coupling sleeve (122).
8. cut reducer according to claim 5 is characterized in that, said first coupling sleeve (121) is fixedly connected through a plurality of bolts (124) at the binding face place with said second coupling sleeve (122).
9. a continuous miner comprises cutting units (5); It is characterized in that said cutting units (5) adopts like each described cut reducer of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110045426A CN102116151B (en) | 2011-02-24 | 2011-02-24 | Continuous miner and cutting speed reducer thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110045426A CN102116151B (en) | 2011-02-24 | 2011-02-24 | Continuous miner and cutting speed reducer thereof |
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| CN102116151A CN102116151A (en) | 2011-07-06 |
| CN102116151B true CN102116151B (en) | 2012-10-03 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130225020A1 (en) * | 2012-02-24 | 2013-08-29 | Kraton Polymers Us Llc | High flow, hydrogenated styrene-butadiene-styrene block copolymer and applications |
| CN103174802B (en) * | 2012-12-24 | 2016-07-13 | 三一重型装备有限公司 | A kind of decelerator and install the continuous miner of this decelerator |
| CN114233835B (en) * | 2021-11-23 | 2023-07-18 | 重庆清平机械有限责任公司 | Sealing mechanism for speed reducer |
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| US4172616A (en) * | 1978-01-31 | 1979-10-30 | Coaltex, Inc. | Cutting head with self-contained power source |
| DE19752242A1 (en) * | 1997-11-26 | 1999-06-17 | Tueschen & Zimmermann | Drive train for chain conveyors |
| GB2337062A (en) * | 1997-04-28 | 1999-11-10 | Huang Chia Hsiung | Cutter head |
| CN101059162A (en) * | 2007-02-14 | 2007-10-24 | 煤炭科学研究总院太原分院 | Speed reducer of continuous coal cutter |
| CN101493010A (en) * | 2009-02-13 | 2009-07-29 | 株洲市九洲四维实业有限公司 | Incision speed reducer for development machine of coal mine |
| CN201460887U (en) * | 2009-08-18 | 2010-05-12 | 郑州四维机电设备制造有限公司 | Motor embedded coal mining machine |
| CN201531566U (en) * | 2009-09-28 | 2010-07-21 | 三一重型装备有限公司 | Two-way output decelerator |
| CN201934099U (en) * | 2011-02-24 | 2011-08-17 | 三一重型装备有限公司 | Continuous miner and cutting reducer thereof |
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2011
- 2011-02-24 CN CN201110045426A patent/CN102116151B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4172616A (en) * | 1978-01-31 | 1979-10-30 | Coaltex, Inc. | Cutting head with self-contained power source |
| GB2337062A (en) * | 1997-04-28 | 1999-11-10 | Huang Chia Hsiung | Cutter head |
| DE19752242A1 (en) * | 1997-11-26 | 1999-06-17 | Tueschen & Zimmermann | Drive train for chain conveyors |
| CN101059162A (en) * | 2007-02-14 | 2007-10-24 | 煤炭科学研究总院太原分院 | Speed reducer of continuous coal cutter |
| CN101493010A (en) * | 2009-02-13 | 2009-07-29 | 株洲市九洲四维实业有限公司 | Incision speed reducer for development machine of coal mine |
| CN201460887U (en) * | 2009-08-18 | 2010-05-12 | 郑州四维机电设备制造有限公司 | Motor embedded coal mining machine |
| CN201531566U (en) * | 2009-09-28 | 2010-07-21 | 三一重型装备有限公司 | Two-way output decelerator |
| CN201934099U (en) * | 2011-02-24 | 2011-08-17 | 三一重型装备有限公司 | Continuous miner and cutting reducer thereof |
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Effective date of registration: 20160908 Address after: 413000 Yiyang high tech Zone in the eastern part of the New District of integrated services building, Room 502, Hunan Patentee after: Yiyang science and Technology Achievement Transformation Service Center Patentee after: Sany Heavy Equipment Co.,Ltd. Address before: Yansai Lake Street 110027 economic and Technological Development Zone Liaoning city Shenyang province No. 31 Patentee before: Sany Heavy Equipment Co.,Ltd. |