CN202690053U - Composite height-adjusting small-roller large-mining height coal cutter - Google Patents

Composite height-adjusting small-roller large-mining height coal cutter Download PDF

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Publication number
CN202690053U
CN202690053U CN 201220026062 CN201220026062U CN202690053U CN 202690053 U CN202690053 U CN 202690053U CN 201220026062 CN201220026062 CN 201220026062 CN 201220026062 U CN201220026062 U CN 201220026062U CN 202690053 U CN202690053 U CN 202690053U
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CN
China
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height
coal
mining
arm
homophony
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CN 201220026062
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Chinese (zh)
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闫振东
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闫振东
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Abstract

A composite height-adjusting small-roller large-mining height coal cutter comprises a cutter body assembly, a coal-cutting roller, a travelling mechanism, an auxiliary device, a hydraulic control system, and an electric control system; the travelling mechanism is disposed inside and below the cutter body assembly; the auxiliary device, the hydraulic control system, and the electric control system are disposed inside the cutter body assembly; the utility model is characterized in that the coal cutter also comprises composite height-adjusting devices which are symmetrically mounted at two side surfaces of the cutter body assembly, wherein the composite height-adjusting device comprises a main height-adjusting arm, a main height-adjusting oil cylinder, an auxiliary height-adjusting cutting arm, and an auxiliary height-adjusting oil cylinder; a piston rod hinging ear of the main height-adjusting oil cylinder is disposed at the inner side of a middle rib plate of the main height-adjusting arm; main height-adjusting oil cylinder pedestals are disposed at the lower parts of the two sides of the casing; the main height-adjusting oil cylinder is fixedly mounted on the piston rod hinging ear and the main height-adjusting oil cylinder pedestals through a pin; the auxiliary height-adjusting cutting arm is hinged with the main height-adjusting arm through a pin; the end of the auxiliary height-adjusting cutting arm is rotatably connected with the coal-cutting roller. The coal cutter is impact in structure, small in size and weight, strong in adaptability, convenient for installation and transportation, and suitable for large, middle, and small coal mines with large mining heights.

Description

The large mining-height coal mining machine of a kind of compound height-adjustable doffer
Technical field
The invention belongs to mining equipment and production technique under the coal mine, is a kind of large mining-height coal mining machine of the compound height-adjustable doffer in large, medium and small moulded coal ore deposit that is specially adapted to.
Background technology
At present, be fully mechanized coal winning technology for coal winning technology under the large and medium-sized coal mine, the coal excavation apparatus that adopts is double-ended shearer, hydraulic support, work plane scratch board conveyor, elevating conveyor, crushing engine, belt conveyer, advance support rack etc.Double-ended shearer adopts not open the otch feed, and during its normal operation, generally the cylinder of its front end is along the top board coal cutting, and the rear end cylinder is along the base plate coal cutting.The diameter of cylinder of double-ended shearer generally between 1~3 meter, the diameter of two cylinders and for this coal-winning machine can cut the highest coal seam thickness.The diameter of coal-winning machine cutting drum has determined the power of cutting motor, and coal-winning machine cutting motor power is generally between 200~900kW at present.Along with the raising of coal-mining technique, the large mining height coal-mining technique of full-seam mining is approved gradually.But because the present high coal-winning machine of international and domestic also not super thick seam large mining, the employed coal-winning machine of thick coal-layer mining is just towards swift, high-power, large volume, heavy weight future development, its power is huge, drops into huge and is restricting the utilization and extention of large mining height coal-mining technique.It is as follows to sum up existing large mining height coal winning technology existing problems:
L, input height, output ratio is low: adopt existing large-scale synthesis mechanized coal mining method, equipment is heavy, power is large, drop into height, output ratio is low;
2, energy consumption is high: the increasing of coal cutting diameter of cylinder causes the coal cutting power of motor to strengthen, and the cylinder cutting motor power that diameter is 3 meters has reached more than the 900kW, and 6.2 meters coal-winning machine installed powers of mining height have reached 2000kW.If the coal cutting diameter of cylinder continues to strengthen, mine power supply pressure strengthens.Adopt present comprehensive mechanized coal mining method because adopt, dress, the coal heaver plants all is powerful device, so unit coal mining energy consumption height;
3, bad adaptability: existing large-scale synthesis mechanical coal mining machine cylinder diameter is large, and rocking arm is heightened and is limited in scope, to the bad adaptability of coal seam thickness; Installed power is large, production capacity is large, the medium and small mine that is not suitable for yielding poorly.
4, down-hole installation, transportation, difficult in maintenance, the stopping production moving time is long and prepare long in time limit: take present 6.2 meters large mining-height coal mining machines as example, complete machine weight reaches about 180 tons, and the whole series are equipped in about 6000 tons.Existing large-scale synthesis mechanical coal mining equipment is many, and volume and weight is large.The down-hole installs, transports, safeguards that to change difficulty all very large, and moving time is long, and it is many, used long in time limit to make up the required ancillary works of work plane.
5, coal-winning machine is bulky.Work pattern with present full-seam mining, coal-winning machine coal cutting diameter of cylinder must be more than or equal to half of coal seam thickness, the coal cutting diameter of cylinder has reached more than 3 meters, and along with the continuation increase of mining height, coal cutting cylinder, rocking arm, cutting motor, coal-winning machine fuselage will be huger also.
6, cost is high, expensive.Because coal-winning machine coal cutting diameter of cylinder is large, the miscellaneous part that matches is large, the processed complex of large, the volume of intensity, high material consumption also, cause coal-winning machine expensive, a domestic large mining-height coal mining machine reaches more than ten million yuan, and the external large mining-height coal mining machine of import reaches about 4,000 ten thousand yuan.
Therefore, how to utilize coal-winning machine and the coal winning technology of new form of structure, solve the problem that the traditional double flitting exists when thick coal-layer mining, more economical high seam and the super thick coal-layer mining realized rationally, safely and efficiently becomes this area urgent problem.
Summary of the invention
The purpose of this utility model is the problem that exists for the large mining-height coal mining machine of above traditional double cylinder, provide a kind of and be fit to little, the large mining height of large, medium and small moulded coal ore deposit power, doffer, compoundly heighten, compact equipment, little, the strong adaptability of volume and weight, be convenient to install and transportation, can solve the large mining-height coal mining machine of compound height-adjustable doffer of the outstanding problems such as four low (resource recovery is low, output ratio is low, fast rate is low, effect is low) that existing large, medium and small moulded coal ore deposit coal-mining technique exists, three height (high investment, high energy consumption, excessive risk).
To achieve these goals, the technical solution of the utility model is:
The large mining-height coal mining machine of a kind of compound height-adjustable doffer, comprise fuselage assembly, coal cutting cylinder, walking mechanism, servicing unit, hydraulic control system, electrical control system, described walking mechanism be arranged in the total adult of fuselage and below, described servicing unit, hydraulic control system, electrical control system all are arranged in the total adult of fuselage, be characterized in also comprising compound height-regulating device, described compound height-regulating device symmetry is installed in the two sides of described fuselage assembly; Wherein: described compound height-regulating device comprises the high arm of homophony, the high oil cylinder of homophony, auxiliary cutting arm, the secondary adjust high cylinder heightened;
Gusset inboard, described homophony high arm middle part is provided with the hinged ear of piston rod of the high oil cylinder of homophony, and casing two side lower parts are provided with the high cylinder pedestal of homophony, and the high oil cylinder of homophony is fixedly mounted on the hinged ear of piston rod and the high cylinder pedestal of homophony by bearing pin;
It is described that auxiliary to heighten cutting arm hinged by bearing pin and the high arm of homophony; Described secondary adjust high cylinder is loaded on the high arm of homophony and auxiliary heightening between the cutting arm by pin; The described auxiliary cutting arm end of heightening is rotationally connected the coal cutting cylinder.
Described fuselage assembly is rectangle, and the fuselage assembly is divided into three parts, is comprised of left box body, middle part casing and right case, and three parts are bolted together; Described coal-winning machine fuselage right case structure and left box body symmetrical configuration arrange that type of attachment is consistent.
Top symmetry in described fuselage assembly 1 both sides is equipped with heightens base 3, and the high arm of described homophony bottom is hinged on by bearing pin to be heightened on the base.
The large mining-height coal mining machine of compound height-adjustable doffer that the utility model provides and existing coal-winning machine relatively have outstanding substantive features and technological progress to be:
1, utilize minor diameter coal cutting cylinder to reach the purpose of large mining height.
2, the coal cutting cylinder heighten the employing combined type, heighten arm and be divided into main and auxiliary two parts.
3, the auxiliary dynamic system of cutting arm that heightens has the cut function, can carry out within the specific limits the coal cutting operation.
4, utilize the swing cut of little coal cutting cylinder to reach the purpose of large coal cutting cylinder cut level.
5, energy consumption significantly descends.Diameter of cylinder diminishes, and has reduced cutting resistance and cut moment of torsion, greatly reduces the power of cutting motor, and simultaneously supporting various electric equipment class requirements reduce with it, and the energy consumption decrease has reduced the coal production cost.
6, down-hole installation, transportation, easy to maintenance.Diameter of cylinder diminishes, so that complete machine structure is compacter, weight reduces greatly, about about 50 tons of gross weight.
7, cost obviously reduces.Diameter of cylinder diminishes, so that the strength of materials of coal-winning machine cutting machine legacy system requires to reduce, processing technology is simple, and manufacturing cost is lower.
The large mining-height coal mining machine coal winning technology of compound height-adjustable doffer that the utility model provides and existing coal winning technology relatively have outstanding substantive features and technological progress to be:
1, input is low, output ratio is high: equipment volume is little, and complete machine power is little.A whole set of fully-mechanized mining equipment deployment cost is low, input is low, output ratio is high;
2, minor diameter coal cutting cylinder, energy consumption is low: the large mining-height coal mining machine cutting drum of twin-roll diameter is 1~3m, and coal-winning machine power significantly reduces, every large mining-height coal mining machine power is about 600~2000kW;
3, strong adaptability: 1. adopt compound height-regulating device, it is large to heighten scope, can reach super high seam by high seam mining; 2. total installed capacity power is low, and complete machine power is 600~2000kW, both can adapt to the medium and small mine that yields poorly, and can adapt to again the high large-scale mine of output; 3. the work plane scratch board conveyor range of choice with the coal-winning machine coupling is large, and width range can be between 630~1800mm.
4, the coal-winning machine complete machine is lightweight, and stopping production moving time and preparation duration are short: complete machine weight is about 50 tons, down-hole installation, transportation, easy to maintenance, and moving time is short, and it is short to make up a used duration of work plane.
5, the coal-winning machine volume reduces: adopt compound height-regulating device, the scope of heightening increases, and diameter of cylinder diminishes, and has effectively reduced the coal-winning machine volume;
6, cost is low, price is low: diameter of cylinder diminishes, so that the strength of materials of coal-winning machine cutting machine legacy system requires to reduce, processing technology is simple, and manufacturing cost is lower, and supporting the whole series equipment cost also reduces greatly with it;
7, cutting form is advanced: the rear end cylinder of described coal-winning machine is along the base plate coal cutting, and its running orbit is straight line, and the cylinder of front end is responsible for cut residue coal body, and its running orbit is a camber line.The complete machine acting is few, and coal mining efficient is high;
8, the large mining height theoretical breakthrough of mining: the work pattern of traditional double flitting is that the cylinder of front end is along the top board coal cutting; The rear end cylinder is along the base plate coal cutting.More than or equal to institute's working seam thickness, upper and lower two clarification in certain roles in cut coal seam are finished whole coal body cuts by two diameter of cylinder sums, realize high seam full-seam mining.Adopt compound height-regulating device, diameter of cylinder reduces greatly, has broken through the theory that mining height and diameter of cylinder are complementary.
Description of drawings
Fig. 1 is the front view of the large mining-height coal mining machine of compound height-adjustable doffer.
Fig. 2 is the top view of the large mining-height coal mining machine of compound height-adjustable doffer.
Fig. 3 is the body structure front view of the large mining-height coal mining machine of compound height-adjustable doffer.
Fig. 4 is the body structure top view of the large mining-height coal mining machine of compound height-adjustable doffer.
Fig. 5 is the compound height-regulating device front view of the large mining-height coal mining machine of compound height-adjustable doffer.
Fig. 6 is the compound height-regulating device top view of the large mining-height coal mining machine of compound height-adjustable doffer.
Fig. 7 is the large mining-height coal mining machine coal work of compound height-adjustable doffer schematic diagram.
The specific embodiment
Carrying out the specific embodiment of the present utility model below in conjunction with accompanying drawing describes in detail:
Illustrated in figures 1 and 2, the large mining-height coal mining machine of a kind of compound height-adjustable doffer, comprise fuselage assembly 1, compound height-regulating device 2, coal cutting cylinder 4, heighten base 3, walking mechanism 5, servicing unit 6, hydraulic control system 7, electrical control system 8, described walking mechanism be arranged in the total adult of fuselage and below, described servicing unit, hydraulic control system, electrical control system all are arranged in the total adult of fuselage, and described compound height-regulating device symmetry is installed in the two sides of described fuselage assembly.Wherein:
1, fuselage assembly
Fig. 3 and shown in Figure 4, fuselage assembly 1 is rectangle, and the fuselage assembly is divided into three parts, is comprised of left box body 1-1, middle part casing 1-2, right case 1-3, and three parts are bolted together; Described coal-winning machine fuselage right case structure and left box body symmetrical configuration arrange that type of attachment is consistent.Be equipped with in the casing top, the left and right sides of described fuselage assembly 1 both sides symmetry and heighten base 3.
2, compound height-regulating device
Fig. 5 and shown in Figure 6, compound height-regulating device 2 comprise and heighten base 3, the high arm 2-1 of homophony, the high oil cylinder 2-2 of homophony, auxiliary cutting arm 2-3, the secondary adjust high cylinder 2-4 of heightening; Be equipped with in the casing top, the left and right sides of described fuselage assembly 1 both sides symmetry and heighten base 3.
Described homophony high-base 3 is loaded on coal-winning machine fuselage assembly 1 top, the high arm 2-1 of described homophony is hinged on the homophony high-base with pin, the high arm reverse side of homophony gusset inboard is provided with the hinged ear 2-11 of the high cylinder piston rod of homophony, coal-winning machine fuselage assembly 1 side is provided with the high cylinder pedestal 1-1 of homophony, totally two of the high oil cylinder 2-2 of homophony are hinged between coal-winning machine fuselage assembly 1 side and the high arm 2-1 of the homophony bottom by pin.By control homophony high oil cylinder 2-2 stretch adjust the high arm 2-1 of homophony and in perpendicular, rotate.
The high arm 2-1 of described homophony top is provided with the auxiliary hinged ear 2-11 of cutting arm that heightens, by pin and auxiliaryly heighten the hinged ear 2-11 of cutting arm with the high arm 2-1 of homophony and auxiliary to heighten cutting arm 2-3 hinged; Be provided with secondary adjust high cylinder base 2-41 on the high arm 2-1 of homophony top, be provided with the hinged ear 2-42 of secondary adjust high cylinder piston rod at the auxiliary cutting arm 2-3 that heightens, totally one of secondary adjust high cylinder 2-4, secondary adjust high cylinder 2-4 is hinged on the high arm 2-1 of homophony and auxiliary heightening between the cutting arm 2-3 by pin and the hinged ear 2-42 of secondary adjust high cylinder piston rod.By control secondary adjust high cylinder 2-4 stretch adjust the auxiliary cutting arm 2-3 that heightens and in perpendicular, rotate.The described auxiliary cutting arm 2-3 end of heightening is rotationally connected coal cutting cylinder 4.
Drive the auxiliary cutting arm of heightening by the high arm of homophony, coal cutting cylinder 4 swings at perpendicular under the acting in conjunction of the high oil cylinder of homophony, secondary adjust high cylinder, can be from minimum pendulum spot wobble to the highest pendulum point.
Compound height-regulating device 2 has left and right dividing, and is that a kind of symmetrical configuration designs.
The described auxiliary integrated cut function of cutting arm 2-3 of heightening mainly comprises cutting motor 2-31, gear reduction unit 2-32, cutting arm housing 2-33, and cutting motor provides power, by the gear reduction unit transmitting torque, drives the coal cutting cylinder and carries out cut.
3, walking mechanism
Described walking mechanism 5 is totally two covers, is arranged in casing assembly 1 both sides, comprises traction motor, gear drive, walking case and walking gear; Traction motor connection teeth wheel shaft group also is loaded in the fuselage, walking case and walking gear are positioned at below the fuselage of bracket side of work plane, and be installed in the top of the walking rack of Scraper Conveyor in Mining Face, by gear drive the power of traction motor is reached walking gear, make being movably walking at Scraper Conveyor in Mining Face of coal-winning machine.
4, servicing unit
Described servicing unit 6 comprises cable handler and spray cooling system.Described cable handler is positioned at the fuselage afterbody of the large mining-height coal mining machine of compound height-adjustable doffer, is used for connecting the coal-winning machine electricity cable; Described spray cooling system is positioned at the rocking arm top of the large mining-height coal mining machine of compound height-adjustable doffer, spraying system can reduce the coal powder content of work plane air in the coal cutting process, reduce coal dust to the harm of worker's health, cooling system can cool off the electric system of cutting head short-wall coal mining machine simultaneously, reduces the electric system proportion of goods damageds.
5, hydraulic control system
Described hydraulic control system 7 comprises fuel tank, oil pump, each oil cylinder and control valve etc.The fuel tank of hydraulic system and oil pump are arranged in the rear portion of coal-winning machine fuselage, for the rotation of each operating mechanism of the large mining-height coal mining machine of compound height-adjustable doffer, swing power is provided.
6, electrical control system
Described electrical control system 8 comprises frequency converter, electric control box.Frequency converter, electric control box are loaded in the fuselage of the large mining-height coal mining machine of compound height-adjustable doffer.
As shown in Figure 7, the coal winning technology of the large mining-height coal mining machine of compound height-adjustable doffer adopts the large mining-height coal mining machine of compound height-adjustable doffer, hydraulic support, work plane scratch board conveyor, elevating conveyor, crushing engine, belt conveyer, advance support rack etc.; The coal winning technology of this coal-winning machine adopts not open the otch feed, distinguishes part with the coal winning technology of existing coal-winning machine and is:
● the high arm of homophony of this coal-winning machine front end and the auxiliary cutting arm of heightening have been stretched, the front end coal cutting cylinder of coal-winning machine raises along the top board coal cutting, and the operation high arm of homophony and the auxiliary cutting arm of heightening, cutting residue coal body under the high arm of homophony and the auxiliary common swing of heightening cutting arm, the running orbit of its coal cutting cylinder is a camber line; The angle of oscillation α of coal cutting cylinder is at least 90 °;
● make the high arm of homophony of this coal-winning machine rear end, pack up with the auxiliary cutting arm of heightening, the rear end coal cutting cylinder of coal-winning machine reduces, and the rear end coal cutting cylinder of coal-winning machine is along the base plate coal cutting; The running orbit of its coal cutting cylinder is straight line.

Claims (3)

1. large mining-height coal mining machine of compound height-adjustable doffer, comprise fuselage assembly (1), coal cutting cylinder (4), walking mechanism (5), servicing unit (6), hydraulic control system (7), electrical control system (8), described walking mechanism be arranged in the total adult of fuselage and below, described servicing unit, hydraulic control system, electrical control system all are arranged in the total adult of fuselage; It is characterized in that: also comprise compound height-regulating device, described compound height-regulating device symmetry is installed in the two sides of described fuselage assembly; Wherein: described compound height-regulating device (2) comprises the high arm of homophony (2-1), the high oil cylinder of homophony (2-2), auxiliary cutting arm (2-3), the secondary adjust high cylinder (2-4) heightened;
Gusset inboard, described homophony high arm middle part is provided with the hinged ear of piston rod of the high oil cylinder of homophony, and casing two side lower parts are provided with the high cylinder pedestal of homophony, and the high oil cylinder of homophony is fixedly mounted on the hinged ear of piston rod and the high cylinder pedestal of homophony by bearing pin;
It is described that auxiliary to heighten cutting arm hinged by bearing pin and the high arm of homophony; Described secondary adjust high cylinder is loaded on the high arm of homophony and auxiliary heightening between the cutting arm by pin; Described auxiliary cutting arm (2-3) end of heightening is rotationally connected coal cutting cylinder (4).
2. the large mining-height coal mining machine of a kind of compound height-adjustable doffer according to claim 1, it is characterized in that: described fuselage assembly (1) is rectangle, the fuselage assembly is divided into three parts, be comprised of left box body (1-1), middle part casing (1-2), right case (1-3), three parts are bolted together; Described coal-winning machine fuselage right case structure and left box body symmetrical configuration arrange that type of attachment is consistent.
3. the large mining-height coal mining machine of a kind of compound height-adjustable doffer according to claim 2, it is characterized in that: the top symmetry in described fuselage assembly (1) both sides is equipped with heightens base (3), and the high arm of described homophony (2-1) bottom is hinged on by bearing pin to be heightened on the base.
CN 201220026062 2012-01-19 2012-01-19 Composite height-adjusting small-roller large-mining height coal cutter CN202690053U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536233A (en) * 2012-01-19 2012-07-04 闫振东 Combined height-adjustable coal cutting machine with small roller and large mining height, as well as coal cutting process of combined height-adjustable coal cutting machine
CN104747189A (en) * 2014-12-31 2015-07-01 太重煤机有限公司 Proportional control system applied to height adjustment of coal mining machine
CN110318748A (en) * 2019-07-25 2019-10-11 山东科技大学 A kind of high efficient driving coal mining combined unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102536233A (en) * 2012-01-19 2012-07-04 闫振东 Combined height-adjustable coal cutting machine with small roller and large mining height, as well as coal cutting process of combined height-adjustable coal cutting machine
CN104747189A (en) * 2014-12-31 2015-07-01 太重煤机有限公司 Proportional control system applied to height adjustment of coal mining machine
CN104747189B (en) * 2014-12-31 2017-04-12 太重煤机有限公司 Proportional control system applied to height adjustment of coal mining machine
CN110318748A (en) * 2019-07-25 2019-10-11 山东科技大学 A kind of high efficient driving coal mining combined unit

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