CN210637066U - Large mining height single-drum short-wall coal mining machine - Google Patents
Large mining height single-drum short-wall coal mining machine Download PDFInfo
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- CN210637066U CN210637066U CN201921318016.1U CN201921318016U CN210637066U CN 210637066 U CN210637066 U CN 210637066U CN 201921318016 U CN201921318016 U CN 201921318016U CN 210637066 U CN210637066 U CN 210637066U
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Abstract
The utility model relates to a single-roller short-wall coal mining machine with large mining height, the machine body of which is a rectangular box body structure, the major part of a double-traction traveling mechanism is arranged in the box body of the machine body, a cutting device is arranged above the machine body, the cutting device comprises a cutting roller, a first-level large rocker arm, a second-level small rocker arm and a pushing oil cylinder, one end of a shell of the first-level large rocker arm and one end of the pushing oil cylinder are respectively hinged with the machine body, the middle part of the shell of the first-level large rocker arm is hinged with the other end of the pushing oil cylinder, a motor and a rotary sleeve are arranged in the shell of the first-level large rocker arm, the, the axis of the rotary sleeve is horizontally arranged front and back, the motor directly or indirectly drives the rotary sleeve to do fixed-shaft rotation relative to the shell of the first-stage large rocker arm, one end of the rotary sleeve close to the coal wall is fixedly connected with the shell of the second-stage small rocker arm, and the cutting drum is installed on the coal wall side of the shell of the second-stage small rocker arm. The utility model discloses can satisfy 5m and above super thick shortwall working face coal seam and adopt full high comprehensive needs once.
Description
Technical Field
The utility model relates to a coal-winning machine suitable for super thick coal seam shortwall combines to adopt working face belongs to coal mining equipment technical field.
Background
A single-roller short-wall coal mining machine is coal mining equipment commonly used for a short-wall working face. The single-roller short-wall coal mining machine with the existing structure is limited by the whole structure, the mining height is usually about 3m, and the highest mining height is usually not more than 4 m. The small mining height causes the stopping production, moving and reversing time of the whole mining area, the preparation period is long, and the high-yield and high-efficiency mining of the mine is seriously influenced. For the coal seam of the ultra-thick short-wall working face with the full height mined at more than 5m at one time, efficient and reliable coal mining machine equipment is still a blank.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a big height of adopting single cylinder shortwall coal-winning machine to satisfy 5m and above super thick shortwall working face coal seam and adopt full high comprehensive needs once.
The utility model discloses a main technical scheme has:
a single-drum short-wall coal mining machine with large mining height comprises a machine body, a cutting device and a double-traction traveling mechanism, wherein the machine body is of a rectangular box structure, the large part of the double-traction traveling mechanism is arranged in a box body of the machine body, the cutting device is arranged above the machine body and comprises a cutting drum, a first-stage large rocker arm, a second-stage small rocker arm and a pushing oil cylinder, one end of a shell of the first-stage large rocker arm and one end of the pushing oil cylinder are respectively hinged with the machine body, a hinged ear seat hinged with the first-stage large rocker arm on the machine body is arranged at the left end or the right end above the machine body, the middle part of the shell of the first-stage large rocker arm is hinged with the other end of the pushing oil cylinder, a motor and a rotary sleeve are arranged in the shell of the first-stage large rocker arm in a rotary mode, and the axis of the rotary sleeve is, the motor directly or indirectly drives the rotary sleeve to do fixed-axis rotation relative to the shell of the first-stage large rocker arm, one end of the rotary sleeve, close to the coal wall, is suspended outside the shell of the first-stage large rocker arm and is fixedly connected with the shell of the second-stage small rocker arm, and the cutting drum is installed on the coal wall side of the shell of the second-stage small rocker arm.
The main components of the height-adjusting hydraulic system and the electric control system of the large-mining-height single-roller short-wall coal mining machine are distributed in the box body of the machine body and above the machine body.
Heightening hydraulic system includes pump motor element, main oil tank, bellytank and heightening valves, pump motor element, main oil tank arrange inside the box of fuselage, the bellytank arranges in the articulated ear seat of the big rocking arm of top and the one-level of fuselage, heightening valves arranges in the fuselage box of bellytank below.
The main oil tank and the auxiliary oil tank are connected through two rubber pipes with different thicknesses, the thick rubber pipe is an oil through pipe and is arranged on the side, close to the coal wall, of the machine body, the thin rubber pipe is an air through pipe and is arranged on the side, close to the mining space, above the machine body.
The electric control system comprises an airborne electric control box and an airborne frequency converter box, the airborne electric control box is arranged in the middle of the double-traction walking mechanism, the airborne frequency converter box is arranged above the machine body and is far away from one end of the machine body, which is hinged with the one-level large rocker arm, and the airborne electric control box and the airborne frequency converter box are connected through a connecting cable.
The double-traction traveling mechanism is preferably arranged in a left-right symmetrical mode by taking the axis of the rotary sleeve as a center.
The large mining height single-roller short-wall coal mining machine preferably further comprises an auxiliary coal blocking mechanism, the auxiliary coal blocking mechanism is mounted on the top surface of the machine body through screws and located between the machine body and the first-stage large rocker arm, the auxiliary coal blocking mechanism is of a telescopic structure, and the top of the auxiliary coal blocking mechanism is lifted along with the first-stage large rocker arm.
The utility model has the advantages that:
the utility model discloses a big height of adopting single cylinder shortwall coal-winning machine adopts the whole arrangement mode of double-deck fuselage, two-stage rocking arm, has broken through the restriction of original single cylinder shortwall coal-winning machine structure, can increase substantially the height of adopting of single cylinder shortwall coal-winning machine, consequently establishes the basis for realizing the high-yield high-efficient exploitation of super thick coal seam shortwall working face.
The utility model discloses a big mining height single drum shortwall coal-winning machine not only specially adapted extra thick coal seam is combined and is adopted shortwall working face, also can be used to extra thick coal seam overlength working face machine head tail assistance and drive the machine nest.
The utility model discloses a big height of adopting single cylinder shortwall coal-winning machine fuselage is short, compact structure, and it is big to adopt the height, and strong adaptability can satisfy 5m and above extra thick shortwall working face and combine to adopt needs, effectively solves extra thick coal seam shortwall working face and combines to adopt high-efficient mining problem.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the large mining height single-drum short-wall shearer of the present invention;
FIG. 2 is a schematic structural view of the cutting device;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic view of the assembly of the motor, the slew reducer assembly and other related components;
FIG. 5 is a schematic view showing the assembly of the rotary sleeve and other related parts;
FIG. 6 is a schematic view of the top cutter of the large mining height single-drum short-wall coal mining machine of the present invention in a cutting state;
FIG. 7 is a schematic view of the large mining height single-drum short-wall coal mining machine of the present invention in a middle cutting state;
fig. 8 is a schematic diagram of the large mining height single-drum short-wall coal mining machine of the present invention in a state of cutting the bed knife.
Description of reference numerals:
1. a body; 2. a cutting device; 21. a first-stage large rocker arm; 211. a motor; 212. a rotary sleeve; 213. a bearing; 214. a slewing reducer assembly; 215. a brake; 216. a final stage gear; 217. a rotary gear; 218. a drive shaft; 22. a second-stage small rocker arm; 23, pushing the oil cylinder; 24. a cutting drum; 3. a double-traction traveling mechanism; 4. an auxiliary coal blocking mechanism; 5. an electrical control system; 6. and (5) heightening the hydraulic system.
Detailed Description
The utility model discloses a big mining height single drum shortwall coal-winning machine, as shown in figure 1, including fuselage 1, cutting device 2 and two traction running gear 3, the fuselage is short and wide rectangle box structure, two traction running gear's major part is arranged in the box of fuselage, cutting device arranges the top of fuselage. The cutting device adopts a combined structure of two-stage rocker arms, as shown in figures 2 and 3, and comprises a cutting drum 24, a first-stage large rocker arm 21, a second-stage small rocker arm 22 and a pushing oil cylinder 23. The one end of the casing of the big rocking arm of one-level with the one end of promotion hydro-cylinder separately with the fuselage is articulated, sets up the top left end or the right-hand member at the fuselage with the articulated ear seat of the big rocking arm of one-level on the fuselage, the middle part of the casing of the big rocking arm of one-level with the other end of promotion hydro-cylinder is articulated, the flexible big rocking arm of drive one-level of promotion hydro-cylinder is at the swing of vertical plane internal small angle within range, and swing angle's design value is no less than 30. As shown in fig. 4 and 5, a motor 211 and a rotary sleeve 212 are disposed in the housing of the large first-stage rocker arm, the rotary sleeve is rotatably connected (for example, supported by a bearing 213) in the inner bore of the housing of the large first-stage rocker arm, and the axis of the rotary sleeve is horizontally arranged in front of and behind the inner bore of the housing of the large first-stage rocker arm, and the motor directly or indirectly drives the rotary sleeve to make fixed-axis rotation relative to the housing of the large first-stage rocker arm. One end (namely the front end) of the rotary sleeve close to the coal wall is suspended outside the shell of the first-stage large rocker arm and is fixedly connected with the shell of the second-stage small rocker arm through a screw and a pin, so that the shell of the second-stage small rocker arm can rotate clockwise and anticlockwise along with the rotary sleeve. The cutting drum 24 is mounted on the coal wall side of the housing of the second-stage small rocker arm.
The design value of the two-direction rotating range of the second-stage small rocker arm is not less than 360 degrees, so that the cutting drum can reach very high and very low positions, the coal mining height can be improved, and the problem of cut-through of lower triangular coal at the head and the tail of the coal mining machine can be also considered.
When the piston rod of the pushing oil cylinder is completely extended out, the first-stage large rocker arm is lifted to the maximum height, and under the condition, when the second-stage small rocker arm swings upwards to form an angle of 90 degrees with the horizontal plane, the cutting drum is lifted to the maximum height. When the piston rod of the pushing oil cylinder is completely retracted, the first-stage large rocker arm is lowered to the lowest height, and under the condition, when the second-stage small rocker arm swings downwards and forms an angle of 90 degrees with the horizontal plane, the cutting drum is lowered to the lowest height.
The combined adjustment of the swing positions of the first-stage large rocker arm and the second-stage small rocker arm is equal to the adjustment of the height of the cutting device, so that the cutting device can meet the requirement of larger mining height and also meets the requirement of the bottom of the triangular coal below the head and the tail of the machine. The utility model discloses a big mining height single drum shortwall coal-winning machine's the biggest height of can adopting can reach 5200mm, and the biggest bedding amount is 550 mm.
The primary large rocker arm is preferably positioned right above the machine body.
In this embodiment, the motor 211 drives the final gear 216 to rotate through the rotation reducer assembly 214, and the final gear 216 is externally engaged with the rotation gear 217 fixed on the rotation sleeve, so that the rotation sleeve also rotates synchronously. The motor is pumped with high pressure oil, the brake 215 between the motor and the speed reducer component is released, the rotary speed reducer component starts to rotate, the rotary sleeve is driven to rotate through the final gear and the rotary gear, and the rotary sleeve and the second-stage small rocker arm are fixed into a whole, so that the second-stage small rocker arm and the rotary sleeve synchronously swing. After the rotation is in place, the brake is switched on, and the rotation sleeve stops braking.
And a cutting motor and a large rocker arm transmission mechanism are further arranged in the shell of the first-stage large rocker arm, a transmission shaft 218 is connected in the rotary sleeve in a rotating manner, an output shaft of the cutting motor is coaxially connected with an input end of the large rocker arm transmission mechanism, and an output end of the large rocker arm transmission mechanism is coaxially connected with one end, close to the mining side, of the transmission shaft 218.
A small rocker arm transmission mechanism and a planetary mechanism are arranged in the shell on the second-stage small rocker arm, one end of the transmission shaft 218, close to the coal wall, is coaxially connected with the input end of the small rocker arm transmission mechanism, the output end of the small rocker arm transmission mechanism is coaxially connected with the planetary mechanism, and the cutting drum 24 is coaxially sleeved on the planetary mechanism and is positioned on the coal wall side of the shell of the second-stage small rocker arm. The power output by the cutting motor is transmitted to the cutting drum through the large rocker arm transmission mechanism, the transmission shaft, the small rocker arm transmission mechanism and the planetary mechanism in sequence, and finally the coal cutting operation is carried out by the cutting drum.
In this embodiment, the swivel sleeve and the transmission shaft are arranged in the middle of the housing of the one-stage large swing arm, the cutting motor is arranged on the right side of the swivel sleeve and the transmission shaft, and the motor and the swivel reducer assembly are arranged on the left side of the swivel sleeve and the transmission shaft. The right end of the shell of the primary large rocker arm is hinged with the machine body. The large rocker arm transmission mechanism adopts a gear transmission mechanism and is integrally installed on the cutting motor and the hollow side of the rotary sleeve. The input end and the output end of the large rocker arm transmission mechanism can be respectively and coaxially connected with the output shaft of the cutting motor and one end of the transmission shaft close to the mining side through spline structures. One end of the transmission shaft close to the coal wall side can be connected with the input end of the small rocker arm transmission mechanism through a spline structure.
The hinged seat of the shell of the primary large rocker arm and the machine body can be designed into an integral structure integrated with the machine body according to the requirements of going into the well, and also can be designed into a split mechanism connected with the machine body through a taper pin.
The double-traction walking mechanism comprises a traction motor, a gear transmission mechanism and an independent walking box, wherein both the traction motor and the gear transmission mechanism are arranged inside a box body of the machine body, and the independent walking box is fixedly arranged on the outer side of the box body of the machine body close to the mining empty side. The independent travel boxes contain adjustable distance pads to accommodate different width fliers.
The main components of the height-adjusting hydraulic system 6 and the electric control system 5 of the large-mining-height single-roller short-wall coal mining machine are distributed in the box body of the machine body and above the machine body in a distributed manner, so that the space utilization rate of the machine body is improved, the machine body of the coal mining machine is shorter, and the structure is more compact.
The specific arrangement of the electrical control system in this embodiment is as follows: the electrical control system mainly comprises an airborne electric control box and an airborne frequency converter box, the airborne electric control box is arranged in the middle of the double-traction walking mechanism and limited by the length of the machine body, the airborne frequency converter box is arranged above the left side of the machine body, and the airborne electric control box and the airborne frequency converter box are connected through a connecting cable. The frequency converter box can also be designed into a non-airborne type, is arranged in the crossheading and is connected with the electric control box through a traction cable.
The specific arrangement mode of the heightening hydraulic system is as follows: the main component of the heightening hydraulic system comprises a pump motor component, a main oil tank, an auxiliary oil tank, a heightening valve group and the like, wherein the pump motor component and the main oil tank are arranged in parallel inside a box body of the machine body so as to reduce the length of the machine body in the left and right directions as much as possible. The auxiliary oil tank is arranged in a hinged lug seat which is hinged with the cutting device at the upper right part of the machine body. The height-adjusting valve group is arranged in the machine body box body below the auxiliary oil tank.
The main oil tank and the auxiliary oil tank are connected through two rubber pipes with different thicknesses, the thick rubber pipe is an oil through pipe and is arranged on the side, close to the coal wall, of the machine body, the thin rubber pipe is an air through pipe and is arranged on the side, close to the mining space, above the machine body. The breather pipe passes through quick plug connection with the bellytank, easy dismounting. The pump motor assembly sucks oil from the main oil tank, and the height-adjusting valve group returns oil to the auxiliary oil tank. In order to improve the heat dissipation effect, the auxiliary oil tank is preferably provided with a cooler.
The double-traction traveling mechanism is preferably arranged in a bilateral symmetry mode by taking the axis of the rotary sleeve, namely the rotary axis of the second-stage small rocker arm as a center, so that the bottom lying quantity at the machine head and the machine tail is the same.
The large mining height single-roller short-wall coal mining machine preferably further comprises an auxiliary coal blocking mechanism 4 which is installed on the top surface of the machine body through screws and located between the machine body and the one-level large rocker arm, the auxiliary coal blocking mechanism is of a telescopic structure, and the top of the auxiliary coal blocking mechanism is lifted along with the one-level large rocker arm. The auxiliary coal blocking mechanism can prevent float coal cut by the top cutter from being accumulated on the machine body.
The auxiliary coal blocking mechanism is formed by combining grouped and layered small box structure units, the auxiliary coal blocking mechanism is divided into a plurality of groups in the left and right direction, one or more small box structure units are superposed up and down in each group, two adjacent small box structure units in each group are hinged, all bottom small box structure units are hinged with the machine body, and all hinged parts are extended left and right along the axis. Each small box structure unit is correspondingly provided with a piston cylinder, and each small box structure unit is driven by the corresponding piston cylinder to swing around the hinge axis of the small box structure unit, so that the lifting effect is generated. When the piston cylinder is in a fully extended state, the front large side of the corresponding small box structure unit is in an inclined state that the bottom edge is close to the front top edge and the back edge is close to the front top edge, and at the moment, the front large side of the small box structure unit is in a maximum inclination angle (an acute angle included by the front large side) state relative to the top surface of the machine body.
When all the small box structure units are in the maximum inclination angle state, the front large surfaces of the small box structure units in the same group are parallel and level, and the front large surfaces of the small box structure units in different groups are parallel and level.
The piston cylinder comprises a cylinder body, a compression spring and a piston, the piston is in sliding fit with the cylinder body, and the compression spring is located between the cylinder bottom of the cylinder body and the piston. When the large one-level rocker arm descends, the piston cylinder contracts under the action of gravity of the large one-level rocker arm, the small box structural unit swings downwards, the auxiliary coal blocking mechanism descends along with the piston cylinder, when the large one-level rocker arm ascends, the action of gravity of the large one-level rocker arm is reduced or disappears, the built-in compression spring rebounds and stretches, the small box structural unit swings upwards, and the auxiliary coal blocking mechanism also ascends along with the piston cylinder. The top surface of the top layer small box structure unit of each group can also be provided with a wedge block, the more the layer that the group closer to the articulated ear seat of the machine body and the large one-level rocker arm comprises is less, the more the articulated ear seat of the machine body and the large one-level rocker arm is close to the end height of the wedge block is lower, so that the wedge space with one high end and one low end between the large one-level arm frame and the machine body is adapted. When the small box structure unit swings downwards, the small box structure unit swings downwards layer by layer from top to bottom. Before the first-stage large rocker arm descends to the lowest point, the auxiliary coal blocking mechanism swings downwards from the upper layer, and the swing angle of the lower layer from the maximum tilt angle state is also large, and the swing angle of the upper layer from the maximum tilt angle state is also small.
When the large mining height single-drum short-wall coal mining machine is used for mining coal, a multi-cutter coal mining process is preferably adopted, namely: the coal cutter is made to reciprocate between the head and the tail of the conveyor for multiple times and cut coal, and the cutting drum is adjusted to different heights before each time of walking, so that the coal cutter can be used for mining the coal at full height after reciprocating for multiple times. Namely, the superposition of the areas occupied by the cutting drums in the height direction after each adjustment can cover the full height of the coal bed of the coal wall.
Taking the complete coal cutting process of the three-cutter reciprocating coal mining as shown in fig. 6-8 as an example, the cutting drum of the coal mining machine is firstly adjusted to the highest position, as shown in fig. 6, the cutting feed is carried out from the head or tail of the conveyor without beveling, and the cutting feed walks to the tail or head and cuts the top cutter; after cutting completely, the cutting drum is lowered by the height of the diameter of the cutting drum, as shown in fig. 7, the cutter is fed from the tail or the head, and the cutter is moved to the head or the tail and cut; after cutting completely, the cutting drum is lowered to the bottom plate, as shown in fig. 8, the cutter is fed from the machine head or the machine tail, the machine tail or the machine head is walked, and the bottom cutter is cut until the cutter is completely cut. The coal mining machine used is the large mining height single-roller short-wall coal mining machine. The coal cutter completes a complete coal cutting process by three reciprocating cutters.
If the diameter of the cutting drum is not less than half of the coal mining height, coal mining can be finished twice by reciprocating between the head and the tail of the conveyor, namely: firstly, adjusting a cutting drum of a coal mining machine to the highest position, feeding from a head or a tail of a conveyor, walking to the tail or the head and cutting a top cutter, lowering the cutting drum to a bottom plate after cutting completely, feeding from the tail or the head, walking to the head or the tail and cutting a bottom cutter until cutting completely. The coal mining machine used is the large mining height single-drum short-wall coal mining machine, and the diameter of the cutting drum is not less than half of the coal mining height. The coal cutting process can be completed by two reciprocating cutters.
Whether the starting point or the end point of the one-way stroke is adopted, when the coal mining machine is positioned at the head or the tail of the machine, the cutting drum completely extends into the return air crossheading or the transportation crossheading so as to ensure that no coal seam residue is cut through.
When the top cutting knife is used, the working face hydraulic support should extend out of the telescopic top beam and the side protection plate in time so as to support the top plate and the coal wall in time. When the bottom cutter is cut, the hydraulic frame of the working face is pulled and pushed to slide in time, when the whole process of the coal mining machine is at the end point, the last row of supports are pulled and pushed to slide, the machine head of the scraper machine is pushed to a depth to the coal wall, and the support pulling and pushing operations are finished.
The utility model discloses an above-mentioned coal mining technology is multitool formula coal mining technology, makes the coal-winning machine cuts the coal simultaneously at the reciprocal repetitious walking between the aircraft nose of conveyer and tail, transfers the cutting drum to different heights before walking at every turn for can adopt full height after going back and forth many times. Namely, the superposition of the areas occupied by the cutting drums in the height direction after each adjustment can cover the full height of the coal bed of the coal wall.
The left and right are referred to herein as left and right in the view of fig. 1, and the front and back are referred to herein as up and down in the view of fig. 3.
Claims (13)
1. The utility model provides a big mining height single drum shortwall coal-winning machine which characterized in that: the cutting machine comprises a machine body, a cutting device and a double-traction traveling mechanism, wherein the machine body is of a rectangular box structure, most parts of the double-traction traveling mechanism are arranged in a box body of the machine body, the cutting device is arranged above the machine body and comprises a cutting drum, a first-stage large rocker arm, a second-stage small rocker arm and a pushing oil cylinder, one end of a shell of the first-stage large rocker arm and one end of the pushing oil cylinder are respectively hinged with the machine body, a hinged lug seat hinged with the first-stage large rocker arm on the machine body is arranged at the left end or the right end above the machine body, the middle part of the shell of the first-stage large rocker arm is hinged with the other end of the pushing oil cylinder, a motor and a rotary sleeve are arranged in the shell of the first-stage large rocker arm, the rotary sleeve is rotatably connected in an inner hole of the shell of the first-stage large rocker arm, the axis of the rotary sleeve is horizontally arranged around the, one end of the rotary sleeve, close to the coal wall, is suspended outside the shell of the first-stage large rocker arm and is fixedly connected with the shell of the second-stage small rocker arm, and the cutting drum is arranged on the coal wall side of the shell of the second-stage small rocker arm.
2. The large mining height single drum shortwall shearer of claim 1, wherein: the double-traction walking mechanism comprises a traction motor, a gear transmission mechanism and an independent walking box, wherein both the traction motor and the gear transmission mechanism are arranged inside a box body of the machine body, the independent walking box is arranged on the side, close to the mining cavity, of the box body of the machine body, and the independent walking box comprises an adjustable distance pad.
3. The large mining height single drum shortwall shearer of claim 1, wherein: the main components of the heightening hydraulic system and the electrical control system are distributed in the box body of the machine body and above the machine body.
4. A large mining height single drum shortwall shearer as claimed in claim 3, wherein: heightening hydraulic system includes pump motor element, main oil tank, bellytank and heightening valves, pump motor element, main oil tank arrange inside the box of fuselage, the bellytank arranges in the articulated ear seat of the big rocking arm of top and the one-level of fuselage, heightening valves arranges in the fuselage box of bellytank below.
5. The large mining height single drum shortwall shearer of claim 4, wherein: the main oil tank and the auxiliary oil tank are connected through two rubber pipes with different thicknesses, the thick rubber pipe is an oil through pipe and is arranged on the side, close to the coal wall, of the machine body, the thin rubber pipe is an air through pipe and is arranged on the side, close to the mining space, above the machine body.
6. A large mining height single drum shortwall shearer as claimed in claim 3, wherein: the electric control system comprises an airborne electric control box and an airborne frequency converter box, the airborne electric control box is arranged in the middle of the double-traction walking mechanism, the airborne frequency converter box is arranged above the machine body and is far away from one end of the machine body, which is hinged with the one-level large rocker arm, and the airborne electric control box and the airborne frequency converter box are connected through a connecting cable.
7. A large mining height single drum shortwall shearer according to claim 1, 2, 3, 4, 5 or 6, characterized in that: the double-traction traveling mechanisms are symmetrically arranged left and right by taking the axis of the rotary sleeve as a center.
8. A large mining height single drum shortwall shearer according to claim 1, 2, 3, 4, 5 or 6, characterized in that: still include supplementary coal mechanism that keeps off, install through the screw on the top surface of fuselage, be located between fuselage and the big rocking arm of one-level, supplementary coal mechanism that keeps off is extending structure, and its top is followed the big rocking arm of one-level goes up and down.
9. The large mining height single drum shortwall shearer of claim 8, wherein: the auxiliary coal blocking mechanism is formed by compounding a plurality of small box body structure units, the left and right directions are divided into a plurality of groups, one or more small box body structure units are superposed up and down in each group, two adjacent small box body structure units in each group are hinged, all the bottom small box body structure units are hinged with the machine body, each small box body structure unit is correspondingly provided with a piston cylinder, each small box body structure unit swings in a small range around the hinge axis of the small box body structure unit under the telescopic driving of the corresponding piston cylinder, when the piston cylinder is in a fully extended state, the front side large surface of the corresponding small box structure unit is in an inclined state that the bottom edge is close to the front top edge and the back edge is close to the front top edge, and at the moment, the large front side surface of the small box structure unit is in the maximum inclination angle state relative to the top surface of the machine body, the piston cylinder comprises a cylinder body, a compression spring and a piston, the piston is in sliding fit with the cylinder body, and the compression spring is positioned between the cylinder bottom of the cylinder body and the piston.
10. The large mining height single drum shortwall shearer of claim 9, wherein: the top surface of the top layer small box structure unit of each group is also provided with a wedge block, the more the layer contained by the group which is closer to the articulated lug seat of the machine body and the large one-level rocker arm is less, the more the layer is closer to the articulated lug seat of the machine body and the large one-level rocker arm, and the lower the end height of the wedge block is.
11. The large mining height single drum shortwall shearer of claim 7, wherein: still include supplementary coal mechanism that keeps off, install through the screw on the top surface of fuselage, be located between fuselage and the big rocking arm of one-level, supplementary coal mechanism that keeps off is extending structure, and its top is followed the big rocking arm of one-level goes up and down.
12. The large mining height single drum shortwall shearer of claim 11, wherein: the auxiliary coal blocking mechanism is formed by compounding a plurality of small box body structure units, the left and right directions are divided into a plurality of groups, one or more small box body structure units are superposed up and down in each group, two adjacent small box body structure units in each group are hinged, all the bottom small box body structure units are hinged with the machine body, each small box body structure unit is correspondingly provided with a piston cylinder, each small box body structure unit swings in a small range around the hinge axis of the small box body structure unit under the telescopic driving of the corresponding piston cylinder, when the piston cylinder is in a fully extended state, the front side large surface of the corresponding small box structure unit is in an inclined state that the bottom edge is close to the front top edge and the back edge is close to the front top edge, and at the moment, the large front side surface of the small box structure unit is in the maximum inclination angle state relative to the top surface of the machine body, the piston cylinder comprises a cylinder body, a compression spring and a piston, the piston is in sliding fit with the cylinder body, and the compression spring is positioned between the cylinder bottom of the cylinder body and the piston.
13. The large mining height single drum shortwall shearer of claim 12, wherein: the top surface of the top layer small box structure unit of each group is also provided with a wedge block, the more the layer contained by the group which is closer to the articulated lug seat of the machine body and the large one-level rocker arm is less, the more the layer is closer to the articulated lug seat of the machine body and the large one-level rocker arm, and the lower the end height of the wedge block is.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921318016.1U CN210637066U (en) | 2019-08-15 | 2019-08-15 | Large mining height single-drum short-wall coal mining machine |
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| CN201921318016.1U CN210637066U (en) | 2019-08-15 | 2019-08-15 | Large mining height single-drum short-wall coal mining machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526702A (en) * | 2022-02-21 | 2022-05-24 | 天地上海采掘装备科技有限公司 | Mining height detection device and detection method for two-stage combined type rocker arm single-roller short-wall coal mining machine |
| CN114562263A (en) * | 2022-04-27 | 2022-05-31 | 江苏博一矿业科技有限公司 | Cooler of coal mining equipment |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114526702A (en) * | 2022-02-21 | 2022-05-24 | 天地上海采掘装备科技有限公司 | Mining height detection device and detection method for two-stage combined type rocker arm single-roller short-wall coal mining machine |
| CN114562263A (en) * | 2022-04-27 | 2022-05-31 | 江苏博一矿业科技有限公司 | Cooler of coal mining equipment |
| CN114562263B (en) * | 2022-04-27 | 2022-07-15 | 江苏博一矿业科技有限公司 | Cooler of coal mining equipment |
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