CN202031591U - Fully mechanized coal face complete equipment and coal mining machine thereof - Google Patents
Fully mechanized coal face complete equipment and coal mining machine thereof Download PDFInfo
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- CN202031591U CN202031591U CN2011201402297U CN201120140229U CN202031591U CN 202031591 U CN202031591 U CN 202031591U CN 2011201402297 U CN2011201402297 U CN 2011201402297U CN 201120140229 U CN201120140229 U CN 201120140229U CN 202031591 U CN202031591 U CN 202031591U
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Abstract
The utility model discloses a coal mining machine of fully mechanized coal face complete equipment, which comprises machine bodies (2). The machine bodies (2) are arranged on the scraper conveyor of the fully mechanized coal face complete equipment through skid shoes (4), and moreover, the machine bodies (2) slide along the transmission direction of the scraper conveyor under the action of a traction mechanism; the machine bodies (2) comprise a front machine body (21) and a rear machine body (22) which is movably connected with the front machine body (21). Thus, under the condition that the overall length of the machine bodies of the coal mining machine is constant, the single machine body is shortened in length, and moreover, the front machine body and the rear machine body are movably connected, and when the coal mining machine slides on the scraper conveyor to meet a gradient in the vertical direction or a curve in the horizontal direction, the rear machine body is capable of rotating relative to the front machine body, so that the coal mining machine is capable of better adapting to the vertical curve and the horizontal curve of a coal face, and the working stability of the coal mining machine is improved. The utility model also discloses the fully mechanized coal face complete equipment comprising the coal mining machine.
Description
Technical field
The utility model relates to the mining machine technical field, particularly relates to a kind of coal-winning machine of fully-mechanized mining working a complete set of equipment.The utility model also relates to a kind of fully-mechanized mining working a complete set of equipment that comprises above-mentioned coal-winning machine.
Background technology
China is the main producing coal country in the world, the colliery sum surpasses other All Countries colliery number sums of the whole world, fast development along with 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.
Comprehensive mechanical coal mining is meant the whole manufacturing processes on the coal-face, comprises brokenly coal, coalings, transports coal, supporting, the goaf is handled and the mechanizations realizations are all adopted in stope drift active workings transportation, driving etc.The equipment that adapts with comprehensive mechanical coal mining becomes the fully-mechanized mining working a complete set of equipment, and typical fully-mechanized mining working a complete set of equipment mainly comprises coal-winning machine, drag conveyor and hydraulic support.Coal-winning machine collection machinery, electric and hydraulic pressure are the large-scale complicated system of one, also are the nucleus equipments of fully-mechanized mining working simultaneously, mainly realize broken coal by walking about on the drag conveyor and coaling; Drag conveyor is to utilize scraper chain traction, transports the conveying machinery of coal etc. in groove; Hydraulic support is the support apparatus of comprehensive mechanical coal mining, is used for supporting stope top board, safeguards the working space of equipment such as coal-winning machine and drag conveyor, and fells and transports equipment in company with work plane and move forward.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation that typically places the coal-winning machine on the drag conveyor.
This coal-winning machine comprises cylinder 11, cutting units 12, tractive unit 13 and electric control box 14, and wherein, tractive unit 13 comprises pin rail wheel (being driven wheel) and guide slip shoe 16.The support piston shoes 15 and the guide slip shoe 16 that are positioned at coal-winning machine bottom are supported on coal-winning machine on the ramp plate (ledge) and pin rail of drag conveyor, shearer haulage is supported and leads, and support piston shoes 15 and guide slip shoe 16 all are two.The mode of traction of coal-winning machine is the chainless haulage mode that adopts pin rail wheel to be meshed with transporter pin rail 17, respectively by two Motor Drive, by drawing reduction gearing mechanism, coal-winning machine is walked along the throughput direction of drag conveyor along drag conveyor.The rocking arm of coal-winning machine is hinged on the fuselage two ends with bearing pin, and fixing with it by adjust high cylinder, the pivot angle that changes rocking arm by stretching of adjust high cylinder adapts to different coal thickness, when the operation coal-winning machine when work plane is walked, by the cylinder on the rocking arm, finish coal breakage and coaling operation.
The work under bad environment of coal-winning machine, down-hole get the ature of coal circumstance complication, are often damaged when having caused coal-winning machine to walk on drag conveyor, have influenced the job stability of coal-winning machine; And, along with the increase of coal-winning machine power structure in recent years, complete machine weight constantly increases, needed tractive force also constantly increases, driven wheel of the prior art and pin rail are all bearing bigger active force, because the increase of appearance and size, make coal-winning machine can not well adapt to the vertical curve and the horizontal curvature of work plane, further reduced the stability of coal-winning machine.
Therefore, the tractive force that how reasonably to distribute coal-winning machine satisfies the needs of coal-winning machine to large traction, makes coal-winning machine adapt to the vertical curve and the horizontal curvature of work plane better, improve the stability of coal-winning machine simultaneously, just become the problem that those skilled in the art need solve.
The utility model content
The purpose of this utility model provides a kind of coal-winning machine of fully-mechanized mining working a complete set of equipment, and it is the vertical curve and the horizontal curvature of adaptive functions work plane better, has job stability preferably.Another purpose of the present utility model provides a kind of fully-mechanized mining working a complete set of equipment that comprises above-mentioned coal-winning machine.
For solving the problems of the technologies described above, the utility model provides a kind of coal-winning machine of fully-mechanized mining working a complete set of equipment, comprise fuselage, described fuselage is installed on the drag conveyor of described fully-mechanized mining working a complete set of equipment by piston shoes, and described fuselage slides in the transmission direction of the described drag conveyor in the effect lower edge of haulage gear; Described fuselage comprises forebody and the rear body that flexibly connects with described forebody.
Preferably, be rotationally connected by universal joint between described forebody and the described rear body.
Preferably, described haulage gear comprises first haulage gear, second haulage gear, the 3rd haulage gear and the 4th haulage gear; Described first haulage gear is positioned at described forebody front end, and drive described forebody and travel forward, described second haulage gear is positioned at the rear end of described forebody, and drive described forebody and move backward, described the 3rd haulage gear is positioned at the front end of described rear body, and drive described rear body and travel forward, described the 4th hitch structure is positioned at the rear end of described rear body, and drives described rear body and move backward.
Preferably, described first haulage gear, described second haulage gear, described the 3rd haulage gear and described the 4th haulage gear are taken turns by pin rail separately respectively and the pin rail of described drag conveyor meshes, and the motor by separately provides tractive force respectively, and in the described pin rail motion in effect lower edge of separately tractive force.
Preferably, also comprise:
Checkout gear, described checkout gear are used to detect the velocity of rotation of each described pin rail wheel, and obtain and each described pin rail wheel corresponding rotating speeds signal;
Control device, be used to receive described tach signal, and respectively each tach signal is compared with desired speed respectively, when the velocity of rotation of certain or some described pin rail wheels was greater than or less than described desired speed, described control device was controlled the tractive force that corresponding described motor is adjusted its output.
Preferably, described checkout gear is a velocity sensor.
Preferably, the number of described velocity sensor is four, detects the rotating speed of the pin rail wheel of four described haulage gears respectively.
Preferably, its general supply inlet wire comprises first leader cable and second leader cable, and described first leader cable links to each other with the electrical system of described forebody, and is described forebody power supply, described second leader cable links to each other with the electrical system of described rear body, and is described rear body power supply.
Preferably, its electrical system comprises first electrical system and second electrical system, mutual transmission backup between described first electrical system and described second electrical system.
The utility model also provides a kind of fully-mechanized mining working a complete set of equipment, comprises drag conveyor and the coal-winning machine that is slidingly mounted on the drag conveyor, and described coal-winning machine is as above-mentioned each described coal-winning machine.
The coal-winning machine of a kind of fully-mechanized mining working a complete set of equipment provided by the utility model, comprise fuselage, described fuselage is installed on the drag conveyor of described fully-mechanized mining working a complete set of equipment by piston shoes, and described fuselage slides in the transmission direction of the described drag conveyor in the effect lower edge of haulage gear; Described fuselage comprises forebody and the rear body that flexibly connects with described forebody.Like this, under the constant situation of the fuselage total length of coal-winning machine, the length of unit body shortens, and flexibly connect between forebody and the rear body, when coal-winning machine slides the gradient that runs into vertical direction or horizontal direction crooked on drag conveyor, rear body can rotate with respect to forebody, makes coal-winning machine can adapt to the vertical curve and the horizontal curvature of work plane better, has improved the job stability of coal-winning machine.
A kind of preferred embodiment in, the haulage gear of coal-winning machine provided by the utility model comprises first haulage gear, second haulage gear, the 3rd haulage gear and the 4th haulage gear; Described first haulage gear is positioned at described forebody front end, and drive described forebody and travel forward, described second haulage gear is positioned at the rear end of described forebody, and drive described forebody and move backward, described the 3rd haulage gear is positioned at the front end of described rear body, and drive described rear body and travel forward, described the 4th hitch structure is positioned at the rear end of plain Sohu rear body, and drives described rear body and move backward.Because the number of haulage gear is four, each traction drive point only need provide less tractive force just can satisfy traction requirements, realize the side-to-side movement of coal-winning machine, realized the reasonable distribution of shearer haulage power, reduce coal-winning machine pin rail wheel and drag conveyor pin rail operating pressure, satisfied the needs of coal-winning machine large traction; If a damage is arranged in four haulage gears, other 3 drivings can continue haulage shearer walking work, have guaranteed the work continuity of coal-winning machine.
In another preferred embodiment, coal-winning machine provided by the utility model also comprises checkout gear and control device, and wherein checkout gear is used to detect the velocity of rotation of each described pin rail wheel, and obtains and each described pin rail wheel corresponding rotating speeds signal; Control device is used to receive described tach signal, and respectively each tach signal is compared with desired speed respectively, when the velocity of rotation of certain or some described pin rail wheels was greater than or less than described desired speed, described control device was controlled the tractive force that corresponding described motor is adjusted its output.Though the reasonability that increases the distribution that can improve whole driving force and driving force of haulage gear number, but, if each traction-driven hauling speed difference causes respectively selling the movement velocity difference of rail wheel on the pin rail, then can increase the active force that coal-winning machine bears, reduce the application life of coal-winning machine, also can influence the operate as normal of coal-winning machine when serious.The generation of above-mentioned situation has been avoided in the setting of above-mentioned detection device and control device, in the course of work, speed detector can detect the movement velocity of respectively selling the rail wheel constantly, control device can respectively be sold the movement velocity of rail wheel on the pin rail according to detection signal control, guaranteed that coal-winning machine respectively sells rail wheel and move on the pin rail with identical speed, avoided coal-winning machine to bear extra active force.
Description of drawings
Fig. 1 is a kind of structural representation that typically places the coal-winning machine on the drag conveyor;
Fig. 2 is the structural representation of a kind of specific embodiment of coal-winning machine provided by the utility model;
Fig. 3 is the schematic diagram of a kind of specific embodiment of synchronous control system provided by the utility model.
The specific embodiment
The purpose of this utility model provides a kind of coal-winning machine of fully-mechanized mining working a complete set of equipment, and it is the vertical curve and the horizontal curvature of adaptive functions work plane better, has job stability preferably.Another purpose of the present utility model provides a kind of fully-mechanized mining working a complete set of equipment that comprises above-mentioned coal-winning machine.
In order to make those skilled in the art person understand the utility model scheme better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 is the structural representation of a kind of specific embodiment of coal-winning machine provided by the utility model.
The coal-winning machine of fully-mechanized mining working a complete set of equipment provided by the utility model is installed on the drag conveyor, and can in the transmission direction of drag conveyor, move, this coal-winning machine comprises fuselage 2, fuselage 2 is installed on the drag conveyor of described fully-mechanized mining working a complete set of equipment by piston shoes 4, and described fuselage 2 slides in the transmission direction of the described drag conveyor in the effect lower edge of haulage gear, above-mentioned piston shoes 4 comprise support piston shoes 41 and guide slip shoe 42, supporting piston shoes 41 is supported on the ramp plate of drag conveyor, has pin rail wheel 74 in the guide slip shoe 42, pin rail wheel 74 is meshed with the pin rail 5 of drag conveyor, in the course of work, provide the motor 73 of tractive force to drive 74 rotations of pin rail wheel, because pin rail wheel 74 is meshing with each other with the pin rail 5 of drag conveyor, be converted into the rectilinear motion of coal-winning machine thereby will sell rotatablely moving of rail wheel 74, realize that coal-winning machine is along moving in the transmission direction of drag conveyor.Fuselage 2 comprises forebody 21 and the rear body 22 that flexibly connects with described forebody 21.
Above-mentioned support piston shoes 41 can use the rolling piston shoes, further reduce the demand of coal-winning machine to tractive force, thereby have improved the equipment reliability of operation, make coal-winning machine more can adapt to abominable industrial and mineral condition, have passed through the stability of coal-winning machine.Apparently, support piston shoes 41 and also be not limited to the rolling piston shoes, also can be other forms of piston shoes, piston shoes etc. for example slide.
It is pointed out that the flexible connection between forebody 21 and the rear body 22 is meant, rear body 22 can have the displacement of suitable angle or length with respect to forebody 21 in vertical direction and/or horizontal direction.Above-mentioned forebody 21 and rear body 22 two parts all have independently control system and work system, can work alone respectively, also can work in combination, if wherein forebody 21 and rear body 22 one among both are broken down, another person can work on.
Can be rotationally connected by universal joint 6 between forebody 21 and the rear body 22, also can realize that the connected mode that flexibly connects connects by other.Have predetermined axial distance between the end of the forebody 21 that connects by universal joint 6 and the front end of rear body 22, this has improved its coal breakage performance with regard to for coal-winning machine is provided with enough coal breakage spaces.
Apparently, except above-mentioned piston shoes 4 and body, coal-winning machine provided by the utility model should comprise that also coal-winning machine can realize that other of coal mining activity must component, for example, cylinder 8 (comprising roll left tube and right cylinder), cutting units 9 (comprising left cutting units and right cutting units) etc., the structure of cutting units and cylinder etc. and arrangement and the utility model are irrelevant, do not do at this and give unnecessary details.
It is pointed out that ordinal numbers such as " first, second " described in the literary composition only is in order to distinguish the different component of same names, to should not be construed as certain order.
Like this, under the constant situation of fuselage 2 total lengths of coal-winning machine, the length of unit body shortens, and flexibly connect between forebody 21 and the rear body 22, when coal-winning machine slides the gradient that runs into vertical direction or horizontal direction crooked on drag conveyor, rear body 22 can rotate with respect to forebody 21, makes coal-winning machine can adapt to the vertical curve and the horizontal curvature of work plane better, has improved the job stability of coal-winning machine.
In a kind of specific embodiment, the haulage gear of coal-winning machine provided by the utility model is four, i.e. first haulage gear 31, second haulage gear 32, the 3rd haulage gear 33 and the 4th haulage gear 34; Described first haulage gear 31 is positioned at described forebody 21 front ends, and drive described forebody 21 and travel forward, described second haulage gear 32 is positioned at the rear end of described forebody 21, and drive described forebody 21 and move backward, described the 3rd haulage gear 33 is positioned at the front end of described rear body 22, and drive described rear body 22 and travel forward, described the 4th hitch structure is positioned at the rear end of described rear body 22, and drives described rear body 22 and move backward.Because the number of haulage gear is four, each traction drive point only need provide less tractive force just can satisfy traction requirements, realize the side-to-side movement of coal-winning machine, realized the reasonable distribution of shearer haulage power, reduce the operating pressure of the pin rail 5 of coal-winning machine pin rail wheel 74 and drag conveyor, satisfied the needs of coal-winning machine large traction; If a damage is arranged in four haulage gears, other 3 drivings can continue haulage shearer walking work, have guaranteed the work continuity of coal-winning machine.
Above-mentioned first haulage gear 31, described second haulage gear 32, described the 3rd haulage gear 33 and described the 4th haulage gear 34 be pin rail 5 engagements of the wheel 74 of the pin rail by separately and described drag conveyor respectively, and the motor 73 by separately provides tractive force respectively, and in described pin rail 5 motions in effect lower edge of separately tractive force.Like this, the draw between each haulage gear is independent of each other, and when a certain haulage gear breaks down, can not hinder the work of other haulage gears.The motor 73 that each haulage gear also is not limited to by separately provides tractive force, can make also that two haulage gears are common to use same motor 73.
On the basis of the above-mentioned specific embodiment, can also be further improved coal-winning machine provided by the utility model.
Please refer to Fig. 3, Fig. 3 is the schematic diagram of a kind of specific embodiment of synchronous control system provided by the utility model.
In the another kind of specific embodiment, coal-winning machine provided by the utility model also comprises checkout gear 71 and control device 72; Wherein, checkout gear 71 is used to detect the velocity of rotation of each described pin rail wheel 74, and obtains taking turns 74 corresponding rotating speeds signals with each described pin rail; Control device 72 is used to receive described tach signal, and respectively each tach signal is compared with desired speed respectively, when the velocity of rotation of certain or some described pin rail wheels 74 was greater than or less than described desired speed, the corresponding described motor 73 of described control device 72 controls was adjusted the tractive force of its outputs.
Though the reasonability that increases the distribution that can improve whole driving force and driving force of haulage gear number, but, if each traction-driven hauling speed difference causes respectively selling the movement velocity difference of rail wheel 74 on pin rail 5, then can increase the active force that coal-winning machine bears, reduce the application life of coal-winning machine, also can influence the operate as normal of coal-winning machine when serious.The generation of above-mentioned situation has been avoided in the setting of above-mentioned detection device 71 and control device 72, in the course of work, checkout gear 71 can detect the movement velocity of respectively selling rail wheel 74 constantly, control device 72 can respectively be sold the movement velocity of rail wheel 74 on pin rail 5 according to detection signal control, guaranteed that coal-winning machine respectively sells rail wheel 74 and move on pin rail 5 with identical speed, avoided coal-winning machine to bear extra active force.
Above-mentioned detection device 71 also is not limited to the velocity of rotation of test pin rail wheel 74, and it also can detect the output speed of corresponding motor 73.
Above-mentioned detection device 71 can be velocity sensor.
The number of velocity sensor can be four, detects the rotating speed of the pin rail wheel 74 of four described haulage gears respectively.The number of velocity sensor is identical with the number of haulage gear, and what guaranteed to detect makes things convenient for shape and accuracy.
On the basis of above-mentioned any specific embodiment, the general supply inlet wire of coal-winning machine comprises first leader cable and second leader cable, described first leader cable links to each other with the electrical system of described forebody 21, and be described forebody 21 power supplies, described second leader cable links to each other with the electrical system of described rear body 22, and is described rear body 22 power supplies.Like this, two cover cables are respectively separable forebody 21 and rear body 22 power supplies, have both reduced the difficulty of cable type selecting, also make separable forebody 21 and rear body 22 that better independence is arranged.
The electrical system of this coal-winning machine comprises first electrical system and second electrical system, mutual transmission backup between described first electrical system and described second electrical system, the loss that causes with the loss of data of avoiding a certain cover electrical system.
Except above-mentioned coal-winning machine, the utility model also provides a kind of fully-mechanized mining working a complete set of equipment that comprises above-mentioned coal-winning machine, and other each several part structures of this fully-mechanized mining working a complete set of equipment please refer to prior art, do not locate to give unnecessary details at this.
More than the coal-winning machine of a kind of fully-mechanized mining working a complete set of equipment provided by the utility model is described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (10)
1. the coal-winning machine of a fully-mechanized mining working a complete set of equipment, comprise fuselage (2), described fuselage (2) is installed on the drag conveyor of described fully-mechanized mining working a complete set of equipment by piston shoes (4), and described fuselage (2) slides in the transmission direction of the described drag conveyor in the effect lower edge of haulage gear; It is characterized in that described fuselage (2) comprises forebody (21) and the rear body (22) that flexibly connects with described forebody (21).
2. the coal-winning machine of fully-mechanized mining working a complete set of equipment according to claim 1 is characterized in that, is rotationally connected by universal joint (6) between described forebody (21) and the described rear body (22).
3. the coal-winning machine of fully-mechanized mining working a complete set of equipment according to claim 2 is characterized in that, described haulage gear comprises first haulage gear (31), second haulage gear (32), the 3rd haulage gear (33) and the 4th haulage gear (34); Described first haulage gear (31) is positioned at described forebody (21) front end, and drive described forebody (21) and travel forward, described second haulage gear (32) is positioned at the rear end of described forebody (21), and drive described forebody (21) and move backward, described the 3rd haulage gear (33) is positioned at the front end of described rear body (22), and drive described rear body (22) and travel forward, described the 4th hitch structure is positioned at the rear end of described rear body (22), and drives described rear body (22) and move backward.
4. the coal-winning machine of fully-mechanized mining working a complete set of equipment according to claim 3, it is characterized in that, described first haulage gear (31), described second haulage gear (32), described the 3rd haulage gear (33) and described the 4th haulage gear (34) are taken turns pin rail (5) engagement of (74) and described drag conveyor respectively by pin rail separately, and the motor (73) by separately provides tractive force respectively, and in the described pin rail in effect lower edge (5) motion of separately tractive force.
5. the coal-winning machine of fully-mechanized mining working a complete set of equipment according to claim 4 is characterized in that, also comprises:
Checkout gear (71), described checkout gear (71) are used to detect the velocity of rotation of each described pin rail wheel (74), and obtain and each described pin rail wheel (74) corresponding rotating speeds signal;
Control device (72), be used to receive described tach signal, and respectively each tach signal is compared with desired speed respectively, when the velocity of rotation of certain or some described pin rail wheels (74) was greater than or less than described desired speed, described control device (72) the corresponding described motor of control (73) was adjusted the tractive force of its output.
6. the coal-winning machine of fully-mechanized mining working a complete set of equipment according to claim 5 is characterized in that, described checkout gear (71) is a velocity sensor.
7. the coal-winning machine of fully-mechanized mining working a complete set of equipment according to claim 6 is characterized in that, the number of described velocity sensor is four, detects the rotating speed of the pin rail wheel (74) of four described haulage gears respectively.
8. according to the coal-winning machine of each described fully-mechanized mining working a complete set of equipment of claim 1 to 7, it is characterized in that, its general supply inlet wire comprises first leader cable and second leader cable, described first leader cable links to each other with the electrical system of described forebody (21), and be described forebody (21) power supply, described second leader cable links to each other with the electrical system of described rear body (22), and is described rear body (22) power supply.
9. according to the coal-winning machine of each described fully-mechanized mining working a complete set of equipment of claim 1 to 7, it is characterized in that, its electrical system comprises first electrical system and second electrical system, mutual transmission backup between described first electrical system and described second electrical system.
10. a fully-mechanized mining working a complete set of equipment comprises drag conveyor and the coal-winning machine that is slidingly mounted on the drag conveyor, it is characterized in that described coal-winning machine is as each described coal-winning machine of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201402297U CN202031591U (en) | 2011-05-05 | 2011-05-05 | Fully mechanized coal face complete equipment and coal mining machine thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201402297U CN202031591U (en) | 2011-05-05 | 2011-05-05 | Fully mechanized coal face complete equipment and coal mining machine thereof |
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| CN202031591U true CN202031591U (en) | 2011-11-09 |
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| CN2011201402297U Expired - Fee Related CN202031591U (en) | 2011-05-05 | 2011-05-05 | Fully mechanized coal face complete equipment and coal mining machine thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536235A (en) * | 2011-12-26 | 2012-07-04 | 太原矿山机器集团有限公司 | T-shaped guide groove plug-in-type slip shoe frame |
| CN102963371A (en) * | 2012-11-01 | 2013-03-13 | 中国煤炭科工集团太原研究院 | Belt conveyor rigid frame assembly |
| CN103161460A (en) * | 2011-12-19 | 2013-06-19 | 乔伊·姆·特拉华公司 | Articulated shearer |
-
2011
- 2011-05-05 CN CN2011201402297U patent/CN202031591U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161460A (en) * | 2011-12-19 | 2013-06-19 | 乔伊·姆·特拉华公司 | Articulated shearer |
| CN103161460B (en) * | 2011-12-19 | 2018-11-27 | 乔伊·姆·特拉华公司 | Radial type coalcutter |
| CN102536235A (en) * | 2011-12-26 | 2012-07-04 | 太原矿山机器集团有限公司 | T-shaped guide groove plug-in-type slip shoe frame |
| CN102963371A (en) * | 2012-11-01 | 2013-03-13 | 中国煤炭科工集团太原研究院 | Belt conveyor rigid frame assembly |
| CN102963371B (en) * | 2012-11-01 | 2015-07-15 | 中国煤炭科工集团太原研究院 | Belt conveyor rigid frame assembly |
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Granted publication date: 20111109 Termination date: 20160505 |