CN204212805U - A kind of chain scraper conveyor - Google Patents

A kind of chain scraper conveyor Download PDF

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Publication number
CN204212805U
CN204212805U CN201420676210.8U CN201420676210U CN204212805U CN 204212805 U CN204212805 U CN 204212805U CN 201420676210 U CN201420676210 U CN 201420676210U CN 204212805 U CN204212805 U CN 204212805U
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CN
China
Prior art keywords
chute
power set
braced structures
barrier structure
plate
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.)
Expired - Fee Related
Application number
CN201420676210.8U
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Chinese (zh)
Inventor
赵延军
秦岗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANDONG DUOER JINZE COAL MINE MACHINERY CO., LTD.
Original Assignee
SHANXI DUOER JINZE COAL MACHINE EQUIPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANXI DUOER JINZE COAL MACHINE EQUIPMENT Co Ltd filed Critical SHANXI DUOER JINZE COAL MACHINE EQUIPMENT Co Ltd
Priority to CN201420676210.8U priority Critical patent/CN204212805U/en
Application granted granted Critical
Publication of CN204212805U publication Critical patent/CN204212805U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to mine equipment field, and the mining transportation being specifically related to a kind of chain type is unloaded; The purpose of this utility model is to provide one to be applicable to the simple drag conveyor of structure; A kind of chain scraper conveyor, comprise head power set, tail power set and multiple chute, multiple chute is arranged between head power set and tail power set, head power set and tail power set by reducer, be connected cover and motor is formed, the chute pushing bracket that chute comprises left ledge, right ledge, chute bottom plate and is arranged on the right side of right ledge, coal mining machine rail is provided with bottom left ledge, conveyer is corresponding with at the bottom of left ledge and be one overall, with the cable channel of opening upwards on the chute pushing bracket on the right side of right ledge; Owing to being provided with coal mining machine rail bottom left ledge of the present utility model, conveyer is corresponding with at the bottom of left ledge and be one overall, reduces the working depth that coal-winning machine is mined, and therefore the utility model uses and thinly to exploit with ultra-thin coal seam.

Description

A kind of chain scraper conveyor
Technical field
The utility model belongs to mine equipment field, is specifically related to a kind of mining transportation machinery of chain type.
Background technology
The coal resource of China enriches, current emphasis girdle is 2,600,000,000 tons, and owing to lacking the quarrying apparatus that compliance is good, production efficiency is high, thin seam mining per unit area yield is low, cost of production is high, deficiency in economic performance, make a lot of coal enterprise abandon thin seam mining, cause the serious waste of coal resources.Along with continuing to increase of present exploitation dynamics, reserves that are thick and medium-thickness seam reduce increasingly, and ultra-thin coal seam will become main working seam.Therefore, for extending mine service-life, improving resource recovery, developing a circular economy, need badly and solve girdle high-efficiency mining problem.By work plane space constraint, there is coal seam and bury deeply in girdle, complex geologic conditions, tomography is many, ore deposit pressure is large, unit yield is low, tunnel consumption rate is high, take over anxiety, the problems such as workman's operating condition difference, thin seam mining is the weak link of coal pit mining always, the drag conveyor that exploitation colliery is commonly used is only applicable to exploitation that is thick and medium-thickness seam, in underground work, chute needs regular movement, in this course, the bolt connected between chute and chute easily loosens, must tighten in time, and be engaged in down-hole this work its working strength and danger all very large, the application life that also results in chute thus declines, because head power set are fixedly connected with chute front portion, chute front portion can only be placed in work plane, during coal-winning machine operation chute front portion one section of coal seam digging less than, coal mining rate is low.
At present, the cable channel of fully-mechanized mining working drag conveyor is mainly overall structure, and is linked together by bolt and intermediate channel.Cable channel structure is divided into two parts, and upper strata open spaces is mobile for electric cable for coal mining machine folder, and lower floor's enclosure space is for laying and protect drag conveyor cable and water pipe.In addition, cable channel also plays spillplate, makes coal not overflow drag conveyor, and the safety of safeguard work personnel.Therefore require that cable channel has certain height, can not hinder one's work again the operation of personnel to coal-winning machine.General fully-mechanized mining working cable channel can meet above-mentioned requirement for height, but under this height, when will shearer hauled-part to be completed lubrication or be keeped in repair electric control box from hydraulic support side, the cable channel at corresponding place need be pulled down, in practice, cable channel generally weighs about 200 kilograms, it is very inconvenient to operate, and can not safeguard coal-winning machine fast.
Utility model content
The utility model overcomes the deficiency that prior art exists, and aims to provide a kind of drag conveyor being applicable to digging girdle, and structure is simple, is convenient to down-hole coal excavation working surface coal mining machine inspection and maintenance.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of chain scraper conveyor, comprise head power set, tail power set and multiple chute, multiple chute is arranged between head power set and tail power set, described head power set and tail power set are by reducer, connect cover and motor formation, chute comprises left ledge, right ledge, chute bottom plate and the chute pushing bracket be arranged on the right side of right ledge, coal mining machine rail is provided with bottom left ledge, conveyer is corresponding with at the bottom of left ledge and be one overall, the bottom of coal mining machine rail side with one to the boss of downward-extension, with the cable channel of opening upwards on chute pushing bracket on the right side of right ledge, chute pushing bracket is fixedly connected with cable channel.
Wherein, described cable channel comprises the first barrier structure, second barrier structure, first braced structures and the second braced structures, wherein: described first barrier structure and described second barrier structure are arranged in parallel, for stopping skidding off of cable channel inner cable, first barrier structure comprises riser and baffle plate, described riser is provided with opening, described baffle plate is removably mounted on described riser also can cover described opening completely, described riser is also provided with the fixing hole for the intermediate channel in cable channel and drag conveyor being fixed, described first braced structures and the second braced structures are arranged up and down between the first barrier structure and the second barrier structure, for supporting the cable between the first barrier structure and the second barrier structure.
Conveyer is by driver plate transmission, described driver plate comprises chain and scraper plate, described chain is the loop chain of socket mutually, each secondary described scraper plate is made up of the plate of scraping of two panels hollow, scraping plate installation holds tightly on loop chain, described plate of scraping is aerofoil profile and is inter-connected via a bolt joint to be fixed on loop chain, and scraping plate is that hollow structure also arranges reinforcement pins within it.
Wherein, described reducer is planetary reduction gear, and described head power set become to be arranged vertically with chute.
Wherein, before and after in described chute, chute is connected by dumbbell pin.
Wherein, described baffle plate comprises Internal baffle and outer baffle, is separately positioned on the both sides of opening.
Wherein, described riser is provided with multiple installing hole, described baffle plate is arranged on described riser by bolt and described installing hole.
Wherein, described first braced structures and the second braced structures include multiple horizontal stand, and described horizontal stand is fixedly mounted on described riser.
Wherein, described first braced structures also comprises the gripper shoe on the horizontal stand being horizontally set on described first braced structures.
Wherein, described second barrier structure comprises multiple first column and multiple second column, is separately positioned in described first braced structures and described second braced structures.
Wherein, described first column is removably mounted in described first braced structures.
Wherein, described second barrier structure also comprises the guide pipe being arranged on described multiple first column upper end.
Wherein, conveyer is by driver plate transmission, described driver plate comprises chain and scraper plate, described chain is the loop chain of socket mutually, each secondary described scraper plate is made up of the plate of scraping of two panels hollow, scrape plate to install and hold tightly on loop chain, described in scrape plate and be aerofoil profile and be inter-connected via a bolt joint to be fixed on loop chain, to scrape plate be hollow structure and arrange reinforcement pins within it.
The utility model compared with prior art has following beneficial effect.
One, owing to being provided with coal mining machine rail bottom left ledge of the present utility model, conveyer is corresponding with at the bottom of left ledge and be one overall, this reduces the working depth that coal-winning machine is mined, and therefore the utility model is applicable to thinly to exploit with ultra-thin coal seam.
Two, in cable channel of the present utility model, riser is provided with dismountable baffle plate, second barrier structure is also removably mounted in the first braced structures, when needs are safeguarded facilities such as coal-winning machines, do not need to pull down whole cable channel completely, only baffle plate need be pulled down, can be operated by opening, simplify operating process, can safeguard coal-winning machine rapidly, raising can maintenance efficiency.
Three, driver plate structure of the present utility model is simple, easy for assembly and disassembly and maintenance, each pair of scraper plate is made up of the plate of scraping of two panels hollow, in use, only need length as required to be overlapped one by one by loop chain to load, to scrape plate again and be removably connected by bolt etc. that mode is affixed to hold tightly on loop chain just passable, structure is very simple, installs and removes and keep in repair very convenient;
Four, the self-cleaning ability of the utility model driver plate is strong, scrape after plate installs formation one width scraper plate due to two panels hollow, scrape connect with the material external surface at angle of plate very smooth, and chain is again the smooth loop chain without corner angle, therefore can not form buildup dead angle, the self-purification ability of scraper plate and chain is strong.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model, is also front view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural representation of cable channel in Fig. 1.
Fig. 4 is the structural representation of cell body in Fig. 3.
Fig. 5 is the structural representation of baffle plate in Fig. 3.
Fig. 6 is the structural representation of cable channel in Fig. 1.
Fig. 7 is the top view of Fig. 6.
In figure: 1 is head power set, 2 is coal mining machine rail, and 3 is chute, 4 is left ledge, and 5 is tail power set, and 6 is chute pushing bracket, 7 is chute bottom plate, and 8 is right ledge, and 9 is cable channel, 10 is dumbbell pin, and 11 is riser, and 12 is baffle plate, 13 is opening, and 14 is horizontal stand, and 15 is gripper shoe, 16 is the first column, and 17 is the second column, and 18 is guide pipe, 19 is fixing hole, 20 is installing hole, and 21 is bending structure, and 22 is chain, 23 is scraper plate, 24 is loop chain, and 25 for scraping plate, and 26 is reinforcement pins.
Detailed description of the invention
Be described in further detail the utility model by reference to the accompanying drawings now, accompanying drawing is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As shown in figs. 1-7, a kind of drag conveyor, comprising rail chair body, head power set 1, conventional tail power set 5, conventional head pushing bracket, conventional frame pushing bracket, conventional tail lead-over groove, multiple chute 3, cable channel 9, dumbbell pin 10, conventional rack rails, sprocket wheel, scraper plate, scraper chain, head power set 1 are provided with reducer, connect cover and motor; Head power set 1 are fixedly connected with sprocket wheel conventional method, scraper chain conventional method is arranged on sprocket wheel and composition is in transmission connection with it, scraper plate conventional method is arranged on scraper chain, head power set 1 are fixedly connected with head pushing bracket common method, and the hydraulic stem of head pushing bracket and advancing jack in hydraulic shield support is to corresponding; Tail power set 5 are fixedly connected with tail pushing bracket conventional method, and tail pushing bracket is corresponding with the hydraulic stem of advancing jack in hydraulic shield support; Chute 3 is comprising chute 3 pushing bracket on the right side of left ledge 4, right ledge 8, chute bottom plate 7, right ledge 8; Multiple chute 3 is front and back distribution, scraper plate, scraper chain are arranged in chute 3 by common method respectively, left ledge 4 end, is extended with coal mining machine rail 2 left, coal mining machine rail 2 is corresponding with left ledge 4 end and be one overall, coal mining machine rail 2 left bottom is with one to the boss of downward-extension, and coal mining machine rail 2 is corresponding with coal-winning machine movable pulley; With opening 13 cable channel 9 for carrying cable upwards on chute 3 pushing bracket on the right side of right ledge 8, chute 3 pushing bracket is fixedly connected with cable channel 9, chute 3 pushing bracket is corresponding with the hydraulic stem of jack retired in hydraulic shield support, head power set 1 are connected with head lead-over groove common method, tail power set 5 are connected with tail lead-over groove common method, are connected respectively before and after multiple chute 3 with head lead-over groove, tail lead-over groove common method; The right ledge 8 of chute 3 is fixedly connected with rack rails conventional method, and rack rails is fixedly connected with chute 3 pushing bracket conventional method, and in the present embodiment, reducer is planetary reduction gear, and planetary reduction gear compact conformation takes up room little; Head power set 1 are arranged vertically with chute 3 one-tenth, and namely head power set 1 are arranged in parallel for left and right, and when underground work uses the utility model, head power set 1 are arranged in haulage drift, and coal-winning machine can adopt the coal seam in sky work plane completely, and coal mining rate is high.Before and after in chute 3, chute 3 is connected by common method by dumbbell pin 10, be connected by common method by dumbbell pin 10 with in the middle part of rear chute 3 left ledge 4 left surface in the middle part of each front chute 3 left ledge 4 left surface, be connected by conventional method by dumbbell pin 10 with in the middle part of rear chute 3 right ledge 8 right flank in the middle part of each front chute 3 right ledge 8 right flank.
Cable channel 9 of the present utility model comprises the first barrier structure, second barrier structure, first braced structures and the second braced structures, wherein: described first barrier structure and described second barrier structure are arranged in parallel, for stopping skidding off of cable channel 9 inner cable, first barrier structure comprises riser 11 and baffle plate 12, described riser 11 is provided with opening 13, described baffle plate 12 is removably mounted on described riser 11 also can cover described opening 13 completely, described riser 11 is also provided with the fixing hole 19 for being fixed with the intermediate channel in drag conveyor by cable channel 9, described first braced structures and the second braced structures are arranged up and down between the first barrier structure and the second barrier structure, for supporting the cable between the first barrier structure and the second barrier structure.Cable channel 9 is divided into upper and lower two parts, and top section is the first braced structures, and for laying electric cable for coal mining machine, underclad portion is the second braced structures, for laying drag conveyor cable.
Conveyer is by driver plate transmission, described driver plate comprises chain 22 and scraper plate 23, described chain 22 is the loop chain 24 of socket mutually, each secondary described scraper plate 23 is made up of the plate 25 of scraping of two panels hollow, scraping plate 25 installation holds tightly on loop chain 24, described plate 25 of scraping is aerofoil profile and is inter-connected via a bolt joint to be fixed on loop chain 24, and scraping plate is that hollow structure also arranges reinforcement pins 26 within it.
Wherein, the first braced structures and the second braced structures, between riser 11 and the second barrier structure, an entirety can be made, assemble after dismountable mode can be made.
The riser 11 of cable trough for scraper conveyor 9 is provided with dismountable baffle plate 12, when needs coal-winning machine is overhauled, safeguard time, such as coal mining machine electric control box is keeped in repair or shearer hauled-part is lubricated, only baffle plate 12 need be pulled down, can be operated by opening 13, and not need whole cable channel 9 to pull down, simplify operating process, can safeguard coal-winning machine rapidly, improve maintenance efficiency.
Preferably, baffle plate 12 comprises Internal baffle 12 and outer baffle 12, is separately positioned on the both sides of opening 13, and inside and outside two-layer baffle plate 12 arranges and makes baffle plate 12 more firm, plays barrier effect effectively to the transported substance (such as coal) in intermediate channel.
Preferably, riser 11 is provided with multiple installing hole 20, baffle plate 12 is arranged on riser 11 by bolt and installing hole 20, and baffle plate 12 is bolted, and has enough bonding strengths on the one hand, on the other hand can be for convenience detach.
Preferably, the first braced structures and the second braced structures include multiple horizontal stand 14, and horizontal stand 14 is fixedly mounted on riser 11.Braced structures provides enough support forces by the horizontal stand 14 be arranged on riser 11, and the foreign material entered in addition in cable channel 9 also can spill cable channel 9 by the space between horizontal stand 14, prevent foreign material from piling up in cable channel 9.
Preferably, the first braced structures also comprises gripper shoe 15, and be horizontally set on the horizontal stand 14 of the first braced structures, gripper shoe 15 has smooth surface, for placing cable.
Preferably, second barrier structure is made up of multiple first column 16 and multiple second column 17, be separately positioned in the first braced structures and the second braced structures, limited by the position of column to the cable in cable channel 9, cable is made to be positioned at cable channel 9, lighter for monoblock baffle plate 12 on the one hand, use material is less, reduce the cost of cable channel 9, the foreign material entered from intermediate channel in addition in cable channel 9 also can spill cable channel 9 by the space between column, prevent foreign material from piling up in cable channel 9.
Preferably, first column 16 is removably mounted in the first braced structures, adopt dismountable connected mode between first column 16 and the first braced structures, when safeguarding engineering machinery such as coal-winning machines, pulling down the first column 16 and can overhaul coal-winning machine more easily, safeguard.
Preferably, the second barrier structure also comprises guide pipe 18, and be arranged on multiple first column 16 upper end, in this technical scheme, guide pipe 18 plays barrier effect to the cable be layed in cable channel 9, prevents cable from skidding off in cable channel 9 better.
Preferably, the two ends of guide pipe 18 are respectively arranged with the bending structure 21 departing from riser 11 direction
In this technical scheme, bending structure 21 outwards bends, and can avoid the conductive cable contacts in the end of guide pipe 18 and cable channel 9, thus prevents the cable in cable channel 9 to scratch.
In cable channel 9 in the utility model, riser 11 is provided with dismountable baffle plate 12, second barrier structure is also removably mounted in the first braced structures, do not need when needs are safeguarded facilities such as coal-winning machines to pull down whole cable channel 9 completely, only baffle plate 12 need be pulled down, can be operated by opening 13, simplify operating process, can safeguard coal-winning machine rapidly, improve maintenance efficiency.
Wherein, rail chair body comprises antetheca 26 and rear wall 25, the upper edge of front and back walls 25 and side are along being equipped with filtration fillet, the back side of described rear wall 25 is set to the solder side that cell body different from scratch board conveyor welds, the front of rear wall 25 is connected with the back side of antetheca 26 by three dowels 22, and dowel 22 is equipped with level and smooth knuckle with the joint of front and back walls 25; Rail chair body is provided with the circular hole 23 and slotted hole 2423 that run through front and back walls 25, the center of circular hole 23 and the contour setting of center line of slotted hole 2423, described slotted hole 2423 is formed by left and right symmetrically arranged two semicircle orifices 23 are relatively through, be provided with domatic on the top in antetheca 26 back side and rear wall 25 front, the upper domatic gradient is 15 °-20 °, Caused by Sloping Surfaces is provided with in the bottom in antetheca 26 back side and rear wall 25 front, the gradient of Caused by Sloping Surfaces is 5 °-10 °, and the thickness of the Thickness Ratio rear wall 25 of antetheca 26 is twice.Described rail chair body can bear larger pressure, and intensity is greatly higher than rear wall 25, and rail chair is working in use, and antetheca 26 is larger and complicated by external force than rear wall 25, improves the intensity of antetheca 26, avoids damage in use, the work that impact is mined.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.

Claims (10)

1. a chain scraper conveyor, it is characterized in that, comprise rail chair body, head power set (1), tail power set (5) and multiple chute (3), multiple chute (3) is arranged between head power set (1) and tail power set (5), described head power set (1) and tail power set (5) are by reducer, connect cover and motor formation, chute (3) comprises left ledge (4), right ledge (8), chute bottom plate (7) and chute (3) pushing bracket be arranged on the right side of right ledge (8), left ledge (4) bottom is provided with coal mining machine rail (2), conveyer is corresponding with left ledge (4) end and be one overall, the bottom of coal mining machine rail (2) side with one to the boss of downward-extension, with opening (13) cable channel upwards (9) on chute (3) pushing bracket on right ledge (8) right side, chute (3) pushing bracket is fixedly connected with cable channel (9),
Described cable channel (9) comprises the first barrier structure, second barrier structure, first braced structures and the second braced structures, wherein: described first barrier structure and described second barrier structure are arranged in parallel, for stopping skidding off of cable channel (9) inner cable, first barrier structure comprises riser (11) and baffle plate (12), described riser (11) is provided with opening (13), described baffle plate (12) is removably mounted on described riser (11) above also can cover described opening (13) completely, described riser (11) is also provided with the fixing hole (19) for being fixed with the intermediate channel in drag conveyor by cable channel (9), described first braced structures and the second braced structures are arranged up and down between the first barrier structure and the second barrier structure, for supporting the cable between the first barrier structure and the second barrier structure,
Conveyer is by driver plate transmission, described driver plate comprises chain (22) and scraper plate (23), described chain (22) is the loop chain (24) of socket mutually, each secondary described scraper plate (23) is made up of the plate (25) of scraping of two panels hollow, scraping plate (25) installation holds tightly on loop chain (24), describedly scrape plate (25) for aerofoil profile and be inter-connected via a bolt joint and be fixed on loop chain (24), to scrape plate be hollow structure and arrange reinforcement pins (26) within it.
2. a kind of chain scraper conveyor according to claim 1, is characterized in that, described reducer is planetary reduction gear, and described head power set (1) become to be arranged vertically with chute (3).
3. a kind of chain scraper conveyor according to claim 2, is characterized in that, before and after in described chute (3), chute (3) is connected by dumbbell pin (10).
4. a kind of chain scraper conveyor according to claim 3, is characterized in that, described baffle plate (12) comprises Internal baffle (12) and outer baffle (12), is separately positioned on the both sides of opening (13).
5. a kind of chain scraper conveyor according to claim 4, is characterized in that, described riser (11) is provided with multiple installing hole (20), and described baffle plate (12) is arranged on described riser (11) by bolt and described installing hole (20).
6. a kind of chain scraper conveyor according to claim 5, is characterized in that, described first braced structures and the second braced structures include multiple horizontal stand (14), and described horizontal stand (14) is fixedly mounted on described riser (11).
7. a kind of chain scraper conveyor according to claim 6, is characterized in that, described first braced structures also comprise be horizontally set on described first braced structures horizontal stand (14) on gripper shoe (15).
8. a kind of chain scraper conveyor according to claim 7, is characterized in that, described second barrier structure comprises multiple first column (16) and multiple second column (17), is separately positioned in described first braced structures and described second braced structures.
9. a kind of chain scraper conveyor according to claim 8, is characterized in that, described first column (16) is removably mounted in described first braced structures.
10. a kind of chain scraper conveyor according to claim 9, is characterized in that, described second barrier structure also comprises the guide pipe (18) being arranged on described multiple first column (16) upper end.
CN201420676210.8U 2014-11-13 2014-11-13 A kind of chain scraper conveyor Expired - Fee Related CN204212805U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420676210.8U CN204212805U (en) 2014-11-13 2014-11-13 A kind of chain scraper conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420676210.8U CN204212805U (en) 2014-11-13 2014-11-13 A kind of chain scraper conveyor

Publications (1)

Publication Number Publication Date
CN204212805U true CN204212805U (en) 2015-03-18

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Application Number Title Priority Date Filing Date
CN201420676210.8U Expired - Fee Related CN204212805U (en) 2014-11-13 2014-11-13 A kind of chain scraper conveyor

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321730A (en) * 2018-01-02 2018-07-24 中国神华能源股份有限公司 Electric cable for coal mining machine presss from both sides towing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108321730A (en) * 2018-01-02 2018-07-24 中国神华能源股份有限公司 Electric cable for coal mining machine presss from both sides towing device

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 030003 workshop No. 2, No.1, C District, Taiyuan Stainless Steel Industrial Park, Shanxi, China

Patentee after: SHANDONG DUOER JINZE COAL MINE MACHINERY CO., LTD.

Address before: 030003 workshop No. 2, No.1, C District, Taiyuan Stainless Steel Industrial Park, Shanxi, China

Patentee before: SHANXI DUOER JINZE COAL MACHINE EQUIPMENT CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150318

Termination date: 20201113