CN103046927A - Deflectable cutting device of coal mining machine - Google Patents
Deflectable cutting device of coal mining machine Download PDFInfo
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- CN103046927A CN103046927A CN 201110312638 CN201110312638A CN103046927A CN 103046927 A CN103046927 A CN 103046927A CN 201110312638 CN201110312638 CN 201110312638 CN 201110312638 A CN201110312638 A CN 201110312638A CN 103046927 A CN103046927 A CN 103046927A
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- rocker arm
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Abstract
The invention provides a deflectable cutting device of a coal mining machine and mainly aims at solving the technical problems of low production efficiency and the like. According to the adopted technical scheme, the device is provided with a transitional frame; the tail end of the transitional frame is hinged with a machine body; the side A of the head end of the transitional frame is hinged with a rocker arm assembly, and the side B of the head end of the transitional frame is provided with an oil cylinder assembly; and one end of the oil cylinder assembly is hinged with the transitional frame, and the other end of the oil cylinder assembly is hinged with the rocker arm assembly. The deflectable cutting device is suitable for a high-power coal mining machine for thin and extremely thin coal seams under a complicated geological condition.
Description
Technical field:
The present invention relates to a kind of cutting machine, particularly a kind of cutting rod.
Background technology:
Along with in thick above coal seam a large amount of exploitations and constantly reduce, exploitation thin and thinner seam becomes more important, for reducing the wasting of resources, solving the needs as the Protective Coal Seam exploitation of high gas medium-thickness seam, girdle high-efficiency mining problem has become urgent problem, owing to be subjected to the restriction in work plane space, girdle is the weak link of industrial and mineral well exploitation always, the ability of equipment, installation, maintenance, operation etc. all are very restricted, and coal seam production capacity is low, unit yield is low, the tunnel consumption rate high, take over anxiety, deficiency in economic performance.Experience shows that comprehensive mechanization is the important channel of realizing the highly effective and safe exploitation, and girdle realizes that the primary problem of comprehensive mechanization is to improve compliance and the Homes Using TV of working face mining system.Coal-winning machine as one of coal-face most critical equipment, improve it to compliance and the Homes Using TV of work plane, the characteristics (particularly ultra-thin coal seam) of the complex geological conditions such as the dirt band that need occur at any time for work plane, tomography, improve coal-winning machine self reliability and adapt to the demand of working seam thickness, wherein to increase power of motor (cut etc.), improve clipping force and adopt supporting minor diameter cylinder be the important step that solves the exploitation of girdle highly effective and safe to low seam mining machinery; And the supporting minor diameter cylinder of high-power girdle cutting means to resolve coal loading problem be the principal contradiction that thin seam mining need solve, and relate to the handling characteristics of following coal-winning machine and corollary equipment transporter:
Transporter is owing to the requirement of face length and conveying capacity, and its ledge height often falls very limitedly; Cutting means constantly increases owing to power, because the needs that slow down, the terminal housing arc radius in its straight-tooth chamber also is difficult to its size of control and increases, based on above-mentioned 2 points, again owing to carry that to cut the device diameter of cylinder less, make between transporter ledge place's end face and the outer face, cutting means straight-tooth chamber to guarantee certain gap, cut and do not reveal the exact details plate and can't normally exploit otherwise cylinder occurs;
Coal-winning machine not only should be able to satisfy at work plane middle part the middle part exploitation with transporter, and more should satisfy at the work plane two ends and the exploitation of cutting sth. askew of transporter; The needs of exploitation owing to cut sth. askew, the gap in work plane when exploitation middle part will reduce, but this gap length must satisfy enough values are arranged, otherwise the cylinder of this cutting means will cut the plate of not revealing the exact details; In addition, exploitation will reduce the time gap between transporter shovel board cusp and the drum front end face because work plane is cut sth. askew, and this gap size also must satisfy suitable value is arranged, otherwise the cylinder of this cutting means causes major accident with cut transporter shovel board;
Owing to above-mentioned two reasons, the distance of coalingging between cylinder end face and the transporter ledge inner face is obviously increased, and high-power cutting means final stage transmission size is large, diameter of cylinder is little, and the cylinder blade height of effectively coalingging is less, finally makes the effect of loading coal extreme difference of coal-winning machine, coal is repeated fragmentation in breeching, and repeatedly got rid of the throwing airborne dust, cause the work plane worsening condition, even can't carry out coal mining activity when serious.
For low seam mining machinery, available technology adopting increases the auxiliary measures of coalingging such as spillplate, but affected by operating space etc., and spillplate is difficult to be widely used; For high-power low seam mining machinery, its applicable effect is poorer especially.In existing girdle (particularly ultra-thin coal seam) exploitation, often adopt unidirectional exploitation, i.e. coal-winning machine coal cutting is walked once, return and coaling again walking once, production efficiency is extremely low, and this coal winning technology can't be suitable for its scope of application of significant limitation for breaking roof.
Summary of the invention:
Technical problem to be solved by this invention is: but a kind of coal-winning machine gauche form cutting means is provided, it can satisfy the doffer coal-winning machine and cut sth. askew when exploiting at the work plane two ends and the supporting requirement of transporter, make the distance of coalingging be controlled at smaller value, greatly improve effect of loading coal, realize the high production rate exploitation.
The technical scheme that the present invention solves the problems of the technologies described above employing is:
But coal-winning machine gauche form cutting means includes rocking arm, cylinder and fuselage, be characterized in: this device has a transition frame, nearly fuselage one end of this transition frame is hinged with fuselage, the A side of this transition frame other end is hinged with rocker arm assembly, the B side of this transition frame other end is provided with a cylinder component, this cylinder component one end is hinged with transition frame, and this cylinder component other end is hinged with rocker arm assembly.When the exploitation of work plane middle part, oil cylinder is in the dress attitude of retracting, and keeps effect of loading coal to reach perfect condition; When cutting sth. askew exploitation at work plane two, oil cylinder is in the state of stretching out, with rocker arm assembly around the pin joint of transition frame and rocker arm assembly to the deflection of rib direction, keep coal-winning machine normally to move.
The present invention adopts transition frame and cylinder component structure, make cutting device of coal mining machine under the cylinder component effect, rocker arm assembly can be done an amount of deflection around the pin joint of transition frame and rocker arm assembly, thereby realize that the cylinder of cutting means and the spear carpenters square between the transporter ramp plate are very little adjustable, overcome that high-power low seam mining machinery cutting means size is large, little the bringing of diameter of cylinder coaling that distance is large, the poor problem of effect of loading coal, improve greatly effect of loading coal, thereby realize high production rate.
Description of drawings:
But Fig. 1 is coal-winning machine gauche form cutting means schematic top plan view of the present invention.
Fig. 2 is cylinder component and adjacent members combined amplifier schematic diagram among Fig. 1.
Fig. 3 be among Fig. 1 M to looking schematic diagram.
Fig. 4 is Fig. 1 structure deflection dress attitude schematic diagram.
Fig. 5 is N-N cross-sectional schematic among Fig. 1.
The specific embodiment:
With reference to Fig. 1,3, but coal-winning machine deflection cutting means includes transition frame 1, vertical shaft 2, rocker arm assembly 3, cylinder 4, cylinder component 5 and fuselage.
Nearly fuselage tail end structure and the existing cutting means end construction of support body 11 are same or similar, stretch in afterbody (near fuselage one end) outward by several lugs, offer through hole on each lug, this group through hole and the perforate of fuselage bearing are equipped with rotating shaft jointly, thereby consist of the structure that transition frame 1 nearly fuselage one end is articulated in fuselage, realize the function that cutting means rotates relative to fuselage with cylinder 4;
The other end---the head end of relatively near fuselage one end of transition frame 1 support body 11, the A side of this head end and support body 11 are and are formed with a projection 14 (such as Fig. 5), this projection 14 is positioned at support body 11 middle parts, and thickness is less, but inlay card is at the chute 310 of rocker arm assembly 3 connectors 31; The projection 14A side proximal edge appropriate position of transition frame 1 head end offers axis hole 140, the vertical shaft axis hole 313 of this axis hole 140 and rocker arm assembly 3 connectors 31 jointly is equipped with vertical shaft 2 and is and is slidingly matched, consisting of the articulated structure of transition frame 1 and rocker arm assembly 3, also is that the present invention realizes one of deflectable important structure of cutting means;
The opposite side of the relative A side of transition frame 1 support body, 11 head ends is the B side, has an oil cylinder installation cavity 12 (such as Fig. 1,2,5) in B side proximal edge appropriate position, this oil cylinder installation cavity 12 be one can accommodating cylinder component 5 rectangular cavities, and guarantee to have the space that can make cylinder component 5 swings, this cavity level is to center line (such as Fig. 5) and projection 14 levels to centerline collineation, and oil cylinder installation cavity 12 is all opening-like at support body 11 initial and end two ends; Vertical pin hole 13 after the upper and lower wall of oil cylinder installation cavity 12 offers transition frame is in order to wear the rear vertical pin 55 of cylinder component 5.
Vertical shaft 2, it is the shouldered axis body of an end (such as Fig. 5), vertical shaft 2 stretches through at the vertical shaft axis hole 313 of the axis hole 140 of transition frame 1 projection 14 and rocker arm assembly 3 connectors 31, is between axle and axis hole to be slidingly matched, and consists of the articulated structure of transition frame 1 and rocker arm assembly 3.
Rocker arm assembly 3, its agent structure and prior art are same or similar, assembly includes connector 31, rocker body 32, motor 33 and power train 34, characteristics of the present invention are the links in assembly and transition frame, this link can adopt fabricated structure shown in Figure 1, and namely the main part of rocker arm assembly 3 is to be combined by connector 31 and rocker body 32, has better manufacturability, also can be made into connector 31 and rocker body 32 is a member, wherein:
The B side of connector 31 has one and the piston installation cavity 311 of transition frame 1 oil cylinder installation cavity 12 correspondences, and the space in this chamber should guarantee freely swinging of cylinder component 5 pistons 53;
The upper and lower wall section of connector 31 piston installation cavitys 311 offers vertical pin hole 312 before the connector, the vertical pin hole 312 front vertical pin 51 of cylinder component 5 that can stretch through before this connector;
Front vertical pin 51 is straight pins, and the stem lug in vertical pin hole 312 and piston 53 that stretches through respectively before the connector vertical pin hole 52 of going forward is and is slidingly matched, and consists of the articulated structure of cylinder component 5 and rocker arm assembly 3 connectors 31;
Have rear vertical pin hole 56 on the afterbody lug of cylinder component 5 cylinder bodies 54, be equipped with rear vertical pin 55 after this after the transition frame of vertical pin hole 56 and transition frame 1 in the vertical pin hole 13 and be and be slidingly matched, consist of the articulated structure of cylinder component 5 and transition frame 1;
Described forward and backward vertical pin 51,55 all can adopt the conventional axial location structures such as convex shoulder, cottor pin, and described piston 53, cylinder body 54 and Hydraulic Power Transmission System valve member, annex and the pipeline of being correlated with are equal identical with prior art.
In the coal-winning machine operation process, when the exploitation of work plane middle part, the piston 53 of cylinder component 5 is in retracted mode, spear between cylinder 4 and transporter ramp plate apart from the gap, outer face, cutting means straight-tooth chamber and gap, transporter ledge outer face and coaling the distance all less, make the effect of coalingging reach perfect condition; When cutting sth. askew exploitation at work plane two, the piston 53 of cylinder component 5 is in the state of stretching out, and piston 53 promotes rocker arm assembly 3 through front vertical pin 51, and rocker arm assembly 3 is take vertical shaft 2 as fulcrum deflection, its deflection state as shown in Figure 4, the angle of rocker arm assembly 3 relative transition frame 1 deflections should be not more than 10 °; The deflection of above-mentioned rocker arm assembly 3, make between cylinder 4 on the cutting means and transporter ramp plate the spear gap adjusted, or rocker arm assembly 3 outer faces, straight-tooth chamber and gap, transporter ledge outer face are adjusted, described gap is adjustable, solved when the doffer coal-winning machine is cut sth. askew exploitation at work plane two and the supporting requirement of transporter, finally make the distance of coalingging control to smaller value, greatly improve effect of loading coal, enhance productivity.
Claims (7)
1. but coal-winning machine gauche form cutting means, include rocking arm, cylinder and fuselage, it is characterized in that: this device has a transition frame (1), this transition frame (1) tail end is hinged with fuselage, the A side of this transition frame (1) head end is hinged with rocker arm assembly (3), the B side of this transition frame (1) head end is provided with a cylinder component (5), these cylinder component (5) one ends are hinged with transition frame (1), and this cylinder component (5) other end is hinged with rocker arm assembly (3).
2. but coal-winning machine gauche form cutting means according to claim 1, the A side of its feature transition frame (1) head end offers axis hole (140); rocker arm assembly (3) connector (31) offers vertical shaft axis hole (313); this axis hole (140) and vertical shaft axis hole (313) are equipped with vertical shaft (2) and are and are slidingly matched, and consist of the articulated structure of transition frame (1) and rocker arm assembly (3).
3. but coal-winning machine gauche form cutting means according to claim 1, it is characterized in that the nearly B side of this transition frame (1) support body (11) head end has an oil cylinder installation cavity (12), the upper and lower wall section of this oil cylinder installation cavity (12) offers vertical pin hole (13) after the transition frame.
4. but coal-winning machine gauche form cutting means according to claim 1 is characterized in that the angle that the relative transition frame (1) of this rocker arm assembly (3) swings deflection is not more than 10 °.
5. but coal-winning machine gauche form cutting means according to claim 1, it is characterized in that this rocker arm assembly (3) is installed with a connector (31), this connector (31) has one and piston installation cavity (311) corresponding to transition frame (1) oil cylinder installation cavity (12), and the upper and lower wall section of this piston installation cavity (311) offers vertical pin hole (312) before the connector.
6. but coal-winning machine gauche form cutting means according to claim 1, it is characterized in that this rocker arm assembly (3) connector (31) has a chute (310), this chute (310) inlay card has the projection (14) of transition frame (1) support body (11) to be to be slidingly matched.
7. but coal-winning machine gauche form cutting means according to claim 1, it is characterized in that this cylinder component (5) piston (53) has front vertical pin hole (52), this rocker arm assembly (3) connector (31) has the front vertical pin hole (312) of connector, should before be equipped with front vertical pin (51) in the front vertical pin hole (312) of vertical pin hole (52) and this connector and be and be slidingly matched, consist of the articulated structure of the connector (31) of cylinder component (5) and rocker arm assembly (3), this cylinder component (5) cylinder body (54) has rear vertical pin hole (56), is equipped with the articulated structure that rear vertical pin (55) is be slidingly matched formation cylinder component (5) and transition frame (1) after this after vertical pin hole (56) and the transition frame in the vertical pin hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312638 CN103046927A (en) | 2011-10-14 | 2011-10-14 | Deflectable cutting device of coal mining machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312638 CN103046927A (en) | 2011-10-14 | 2011-10-14 | Deflectable cutting device of coal mining machine |
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| CN103046927A true CN103046927A (en) | 2013-04-17 |
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| CN 201110312638 Pending CN103046927A (en) | 2011-10-14 | 2011-10-14 | Deflectable cutting device of coal mining machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060987A (en) * | 2014-05-21 | 2014-09-24 | 中煤张家口煤矿机械有限责任公司 | Anti-wall-caving coal mining machine |
| CN104583537A (en) * | 2012-08-15 | 2015-04-29 | 卡特彼勒环球矿业欧洲有限公司 | Mobile mining |
| CN110374588A (en) * | 2019-07-24 | 2019-10-25 | 天地科技股份有限公司上海分公司 | The adjustable rocker arm of coal mining machine of underneath clearance and coalcutter |
-
2011
- 2011-10-14 CN CN 201110312638 patent/CN103046927A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104583537A (en) * | 2012-08-15 | 2015-04-29 | 卡特彼勒环球矿业欧洲有限公司 | Mobile mining |
| US9932826B2 (en) | 2012-08-15 | 2018-04-03 | Caterpillar Global Mining Europe Gmbh | Mobile mining |
| CN104583537B (en) * | 2012-08-15 | 2018-04-20 | 卡特彼勒环球矿业欧洲有限公司 | Movable type mining |
| CN104060987A (en) * | 2014-05-21 | 2014-09-24 | 中煤张家口煤矿机械有限责任公司 | Anti-wall-caving coal mining machine |
| CN110374588A (en) * | 2019-07-24 | 2019-10-25 | 天地科技股份有限公司上海分公司 | The adjustable rocker arm of coal mining machine of underneath clearance and coalcutter |
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Application publication date: 20130417 |