CN212563223U - Supporting structure of thin coal seam coal mining machine - Google Patents
Supporting structure of thin coal seam coal mining machine Download PDFInfo
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- CN212563223U CN212563223U CN202020878763.7U CN202020878763U CN212563223U CN 212563223 U CN212563223 U CN 212563223U CN 202020878763 U CN202020878763 U CN 202020878763U CN 212563223 U CN212563223 U CN 212563223U
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Abstract
The utility model relates to a bearing structure of thin coal seam coal-winning machine, be in including fuselage frame and connection fuselage frame is last and support fuselage frame's main tributary props slipper subassembly, auxiliary stay slipper subassembly and direction slipper, the main middle part that props slipper subassembly and support in fuselage frame's fore-and-aft direction, auxiliary stay slipper subassembly and direction slipper are located the place ahead and the rear that main tributary propped slipper subassembly respectively, auxiliary stay slipper subassembly floating support is close to the position of coal wall side at fuselage frame, direction slipper supports the position that is close to the mining void side at fuselage frame, main stay slipper subassembly, auxiliary stay slipper subassembly and direction slipper control respectively and arrange one set. The utility model discloses can improve the support piston shoes and the serious problem of direction piston shoes wearing and tearing of the high-power low height of adopting of hanging the fuselage mode or the extremely thin coal seam coal-winning machine.
Description
Technical Field
The utility model relates to a coal-winning machine bearing structure, the high-power coal-winning machine of short fuselage that is particularly useful for thin or extremely thin coal seam exploitation.
Background
For mining of thin or extremely thin coal seams, the thin or extremely thin coal seam mining machine requires a machine body to be shorter and shorter, but on the other hand, in order to adapt to mining of complex geological conditions such as coexistence of coal and rock, the power of the machine needs to be larger, the sizes of a motor, a transmission system and the like are correspondingly increased along with the increase of the power, and the requirement of the machine body to be shorter and shorter becomes a pair of contradictions, so the structural design of the thin or extremely thin coal seam mining machine is a difficulty.
The technical scheme that large and medium-sized parts such as motors, transmission gears and the like are moved forwards to the side close to the coal wall from the upper part of the original scraper conveyor is proposed and gradually used in the industry, namely, the problem of arrangement of the large and medium-sized parts is solved by adopting a mode of suspending a machine body, so that the height of the machine face is reduced, although the structural arrangement can be improved by adopting the mode, the new outstanding problem that the gravity center of the suspended machine body deviates to the side of the coal wall is caused, and when mining conditions such as downward mining and the like are met, the abrasion of supporting sliding shoes and guiding sliding shoes is more serious.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bearing structure of thin coal seam coal-winning machine can improve the high-power of hanging the fuselage mode and hang the serious problem of wearing and tearing of support piston shoes and direction piston shoes of height or the extremely thin coal seam coal-winning machine of adopting.
The utility model discloses a main technical scheme has:
the supporting structure of the low seam coal mining machine comprises a machine body frame, and a main supporting sliding shoe assembly, an auxiliary supporting sliding shoe assembly and a guiding sliding shoe which are connected to the machine body frame and support the machine body frame, wherein the main supporting sliding shoe assembly is supported in the middle of the machine body frame in the front-back direction, the auxiliary supporting sliding shoe assembly and the guiding sliding shoe are respectively positioned in front of and behind the main supporting sliding shoe assembly, the auxiliary supporting sliding shoe assembly is supported on the side, close to a coal wall, of the machine body frame in a floating mode through hydraulic pressure, and the guiding sliding shoe is supported on the side, close to a mining side, of the machine body frame.
The main supporting sliding shoe assembly is provided with a front supporting surface and a rear supporting surface which are respectively a second supporting surface used for supporting on the bottom plate and a first supporting surface used for supporting on a shovel plate of the scraper conveyor.
The main tributary props smooth boots subassembly and includes main smooth boots, bush and main smooth boots round pin axle, the lower part of fuselage frame is equipped with articulated seat, the seat hole fore-and-aft direction of articulated seat extends, the bush is installed downthehole in the seat, main smooth boots pass through main smooth boots round pin axle articulates on the articulated seat, main smooth boots realize that this articulated ear seat adopts the ears ear seat.
The first supporting surface and the second supporting surface are located at the bottom of the main sliding shoe, the first supporting surface is higher than the second supporting surface, and the first supporting surface and the second supporting surface are both provided with wear-resistant layers.
The guide sliding shoe comprises a base and an ear seat positioned above the base, the base comprises a front side wall, a rear side wall and a top plate connected between the tops of the front side wall and the rear side wall, the bottom of the front side wall or the rear side wall is provided with a barb, the left end and the right end of the base are respectively surrounded by a front side wall, a top plate, a rear side wall and a barb to form a guide groove extending left and right, the guide sliding shoes are hinged at the lower part of the machine body frame, the swing connection between the hinge and the frame of the machine body is realized through the ear hole on the ear seat, the hinge axis extends forwards and backwards, the ear holes are waist-shaped holes which are wide at the left and the right and narrow at the upper and the lower parts, the guide sliding shoes are provided with a left concave surface and a right concave surface which are concave towards the inner part of the base, the recessed surface is located on at least one of the left and right sides of the ear mount, the left and right top surfaces of the base spaced apart by the ear mount, and the transition connection between the left and right sides of the ear mount and the top surface of the base.
The top surface of barb, the rear surface of preceding lateral wall, the bottom surface of roof and the preceding surface of back lateral wall are equipped with wearing layer, preceding wearing layer, last wearing layer and back wearing layer down respectively, wearing layer, preceding wearing layer, last wearing layer and back wearing layer are left right direction extension structure down.
The auxiliary supporting sliding shoe assembly comprises a single-rod piston cylinder and an auxiliary sliding shoe, the single-rod piston cylinder is vertically installed in the machine body frame and is located right above the auxiliary sliding shoe, the downward extending end of the piston rod is hinged to the upper portion of the auxiliary sliding shoe, and the hinge axis extends in the front-back direction.
The single-rod piston cylinder comprises a cylinder barrel, a piston rod and a flanging support sleeve, wherein a vertical cylinder mounting hole with a downward opening is formed in a machine body frame, the cylinder barrel is vertically mounted on the upper portion of the cylinder mounting hole in a downward opening mode and is hinged to the machine body frame through an upper cylinder pin, the upper cylinder pin extends in the front-rear direction, the cylinder barrel is matched with a machine body frame column hole, the upper portion of the flanging support sleeve is inserted into and fixed in the cylinder barrel to block the opening of the cylinder barrel, the piston rod penetrates through the flanging support sleeve downwards, static seals and dynamic seals are respectively arranged between the flanging support sleeve and the cylinder barrel as well as between the piston rod, a through groove with a downward groove opening and extending in the left-right direction is formed in the lower portion of the flanging support sleeve, the lower end of the piston rod is hinged to an upper lug seat of the auxiliary slide through a lower cylinder, and the hinge structure is limited in the through groove.
The utility model has the advantages that:
the utility model discloses according to the structural arrangement characteristics of the mode of hanging the fuselage, several different specific position departments set up fixed main tributary and support, fixed auxiliary support and floating support respectively in the biased direction of fuselage gravity, can cooperate each other, can make each structure maximize performance respective structural advantage again, is showing and is improving the holistic stability of coal-winning machine.
The utility model discloses an adopt the auxiliary stay piston shoe subassembly keeps certain hydraulic pressure force in real time through hydraulic pressure fuel feeding, when the condition that influences stationarity such as bottom plate fluctuation, coal gangue appeared, carries out the replenishment or the release of hydraulic pressure force through the automatic flexible confession of control piston rod according to the actual hydraulic pressure force's that detects change condition, makes hydraulic pressure force get back to the setting value again, keeps the basic invariant of holding power. Because a certain auxiliary supporting force can be provided in real time, the stress of the main supporting sliding shoe component can be reduced, particularly the additional stress of downward cutting counterforce is applied to the machine body when the roller rotates inwards, the auxiliary supporting structure provided by the invention is additionally arranged on the coal mining machine, so that the stress of the main supporting sliding shoe component can be greatly improved, the abrasion of the main supporting sliding shoe component can be reduced, and the service life of the main supporting sliding shoe component can be prolonged.
The utility model discloses a main tributary that has two holding surfaces supports slipper subassembly, not only the contact surface is the increase at double, and the second holding surface can remove the support position to the coal wall direction moreover, has improved the stability of hanging the fuselage coal-winning machine greatly.
The utility model discloses a set up on the direction piston shoe sunken surface, the mounted position of drive wheel axle and walking shaft can be more nearly, and correspondingly drive wheel axle and walking shaft can set up very little at direction of height's drop, consequently is favorable to reducing the machine face height, and this accords with the structural design direction of thin seam coal-winning machine. If the height of the machine face of the coal cutter body is unchanged, the coal passing height below the machine body and above the scraper conveyor can be greatly increased, and the problems of chain jamming of the scraper conveyor, increase of resistance of the coal cutter, insufficient effective traction force and the like can be avoided through massive coal, gangue and the like.
Through setting up each wearing layer of guide way of extension structure, can improve the bulk strength and the life of direction piston shoes, consequently further improve the stability of coal-winning machine complete machine.
Drawings
Fig. 1 is a schematic diagram of an arrangement position (left side view of the whole machine) of an embodiment of the present invention;
fig. 2 is a partial view (front view) of an embodiment of the present invention;
fig. 3 is a partial cross-sectional view (looking down) of an embodiment of the present invention;
FIG. 4 is an enlarged view of the main support slipper assembly of FIG. 1;
FIG. 5 is a front view of the primary slipper of FIG. 4;
FIG. 6 is a longitudinal cross-sectional view of FIG. 5;
FIG. 7 is an enlarged view of the auxiliary support slipper assembly of FIG. 1;
FIG. 8 is a cross-sectional view A-A of FIG. 7;
FIG. 9 is a cross-sectional view B-B of FIG. 8;
FIG. 10 is a front view of the guide shoe of FIG. 1;
FIG. 11 is a top view of FIG. 10;
FIG. 12 is an enlarged partial view of the guide shoe of FIG. 1;
FIG. 13 is a partial structural view of a walking system where the guide shoes are located;
fig. 14 is a schematic diagram of the arrangement position of the frame of the whole coal mining machine according to the present invention.
Reference numerals:
1. a fuselage frame;
2. a main support slipper assembly; 21. a main shoe; 211. a main slipper lug; 214. a first support surface; 215. a second support surface; 22. a bushing; 23. a main shoe pin;
3. an auxiliary support slipper assembly; 310. a piston rod; 311. a cylinder barrel; 312. an anti-rotation pin; 313. a flanging supporting sleeve; 3131. a trench wall; 314. fastening screws; 315. a piston; 32. an auxiliary shoe; 321. the outer end surface of the ear seat; 33. an oil cylinder pin is arranged; 34. a lower cylinder pin; 35. an oil connector;
4. a guide shoe; 41. a base; 42. an ear mount; 43. a recessed surface; 411. a front wear layer; 412. a rear wear layer; 413. an upper wear-resistant layer; 414. a lower wear layer.
5. A drive axle;
6. a walking wheel shaft.
Detailed Description
The utility model discloses a bearing structure of thin coal seam coal-winning machine, as shown in fig. 1-14, include fuselage frame 1 and connect and be in on the fuselage frame and support the main tributary of fuselage frame props smooth boots subassembly 2, auxiliary stay smooth boots subassembly 3 and direction smooth boots 4, the main middle part that props smooth boots subassembly and supports on the fore-and-aft direction of fuselage frame mainly bears the gravity of coal-winning machine, auxiliary stay smooth boots subassembly and direction smooth boots are located the place ahead and the rear of main tributary and prop smooth boots subassembly respectively, auxiliary stay smooth boots subassembly floats the position that supports near the coal wall side at the fuselage frame through hydraulic pressure power, and the auxiliary gravity that bears the coal-winning machine, the direction smooth boots support is close to the position of adopting the sky side at the fuselage frame for the gravity and the walking output power of balanced coal-winning machine, and do the direction for the coal-winning machine along the track walking. The main supporting sliding shoe assembly 2, the auxiliary supporting sliding shoe assembly 3 and the guiding sliding shoe 4 respectively provide a fixed main support, a floating support and a fixed auxiliary support, and the main supporting sliding shoe assembly, the auxiliary supporting sliding shoe assembly 3 and the guiding sliding shoe assembly cooperate with each other, so that the overall stability of the coal mining machine is obviously improved.
The main supporting slipper assembly 2 is provided with a front supporting surface and a rear supporting surface, which are a second supporting surface 215 and a first supporting surface 214. When the scraper conveyor supporting device is used, the first supporting surface is supported on a shovel plate of the scraper conveyor, and the second supporting surface is supported on the bottom plate. Compared with the existing supporting sliding shoe with only one supporting surface for supporting on the shovel plate, the supporting sliding shoe has the advantages that the contact area is increased, the specific pressure is reduced, the service life of the supporting sliding shoe is prolonged, and in addition, the supporting position can be moved to the coal wall side due to the fact that the second supporting surface is arranged, and therefore the stability of the thin coal seam coal mining machine adopting a machine body suspending mode can be greatly improved.
In this embodiment, the main support slipper assembly 2 includes a main slipper 21, a bushing 22, and a main slipper pin 23. The lower part of the machine body frame is provided with a hinged seat, the front and back directions of a seat hole of the hinged seat extend, the bushing is installed in the seat hole to protect the seat hole from being abraded, and the main sliding shoe is hinged to the hinged seat through a main sliding shoe pin shaft. In the embodiment shown in the figures, the ear mount 211 of the main shoe participating in the articulation with the hinge mount is a binaural ear mount.
The first supporting surface and the second supporting surface are positioned at the bottom of the main sliding shoe, and in order to adapt to the height difference between the shovel plate and the bottom plate, the first supporting surface is higher than the second supporting surface. The first supporting surface and the second supporting surface are both provided with a wear-resistant layer.
The guide shoe 4 comprises a base 41 and an ear seat 42 positioned above the base, the base comprises a front side wall, a rear side wall and a top plate connected between the tops of the front side wall and the rear side wall, barbs are arranged at the bottoms of the front side wall or the rear side wall, and guide grooves extending left and right are respectively defined by the front side wall, the top plate, the rear side wall and the barbs at the left end and the right end of the base. The guide sliding shoe is hinged to the lower portion of the machine body frame, the guide sliding shoe is connected with the machine body frame in a swinging mode through an ear hole in an ear seat of the guide sliding shoe, and a hinge axis extends forwards and backwards. The guide slipper is provided with a left concave surface 43 and a right concave surface 43 which are concave towards the inside of the base, and the concave surfaces are positioned on at least one of the left side surface and the right side surface of the ear seat, the left top surface and the right top surface of the base which are separated by the ear seat and the transition connection part of the left side and the right side of the ear seat and the top surface of the base.
The provision of said recessed surface allows room for the drive axle 5 to be mounted radially closer to the running axle 6. The advantage that the driving wheel axle and the walking wheel axle are closer to each other is that the fall of the driving wheel axle and the walking wheel axle in the height direction can be set to be very small, so that the height of the machine face is reduced, and the structure design direction of the thin seam coal mining machine is met. If the height of the machine face of the coal cutter body is unchanged, the coal passing height below the machine body and above the scraper conveyor can be greatly increased, and the problems of chain jamming of the scraper conveyor, increase of resistance of the coal cutter, insufficient effective traction force and the like can be avoided through massive coal, gangue and the like.
At least one guide sliding shoe is arranged on the concave surface and is positioned on the left side or the right side of the lug seat, but the guide sliding shoes are preferably arranged on the left side and the right side respectively, so that the same guide sliding shoe can be used for a left side walking system and a right side walking system of the coal mining machine. Further, the guide shoes are generally of a left-right symmetrical structure and are interchangeably installed when used on left and right travel boxes on a shearer loader.
The concave surface is preferably a straight cylindrical surface, the generatrices of which extend back and forth. The drive axle is disposed adjacent to the recessed surface when assembled. The radius of curvature of the concave surface is determined by the diameter of the driving axle and should generally be no less than the radius of the driving axle.
A lower wear layer 414, a front wear layer 411, an upper wear layer 413 and a rear wear layer 412 are respectively arranged on the top surface of the barb, the rear surface of the front side wall, the bottom surface of the top plate and the front surface of the rear side wall. The arrangement of the concave surface ensures that a top plate or a guide groove close to the driving wheel shaft on one side in the left-right direction is positioned on the left or right outer side of the driving wheel shaft, and the sizes of the top plate and the guide groove have enough adjusting space and can not be limited by the driving wheel shaft. For example, the length of the guide groove can be properly lengthened, namely, the lower wear-resistant layer, the front wear-resistant layer, the upper wear-resistant layer and the rear wear-resistant layer are preferably lengthened in the left-right direction, so that the surfaces which are involved in guiding and are in contact with the rail are prolonged, the overall strength and the service life of the guide sliding shoe can be improved, and the stability of the whole machine of the coal mining machine is further improved. Particularly, the thickness of the top plate can be increased upwards appropriately, so that the overall strength of the guide sliding shoe can be improved.
The ear holes are waist-shaped holes which are wide left and right and narrow up and down, and are beneficial to providing required space for the horizontal swinging of the guide sliding shoes relative to the walking box shell.
The auxiliary supporting sliding shoe assembly 3 comprises a single-rod piston cylinder and an auxiliary sliding shoe 32, the single-rod piston cylinder is vertically and fixedly installed in the machine body frame and is located right above the auxiliary sliding shoe, the downward extending end of the piston rod 310 is hinged with the upper portion of the auxiliary sliding shoe, and the hinge axis extends in the front-back direction.
The auxiliary supporting sliding shoe assembly is manually controlled to be kept at a set hydraulic pressure value in real time. The concrete expression is that when the condition that influences the stationarity such as bottom plate fluctuation, coal gangue appears, the actual pressure value deviates from the pressure value of settlement for a short time, and the automatic flexible hydraulic pressure force of carrying on of piston rod complements or releases, until hydraulic pressure force returns the setting value again. The auxiliary supporting skid shoe assembly can provide certain auxiliary supporting force in real time, stress of the main supporting skid shoe assembly is reduced, especially additional stress of downward cutting counter force is applied to a machine body when the roller rotates inwards, the stress of the main supporting skid shoe assembly can be greatly improved by arranging the auxiliary supporting structure, abrasion of the main supporting skid shoe assembly is reduced, and the service life of the main supporting skid shoe assembly is prolonged.
The single-rod piston cylinder comprises a cylinder barrel 311, a piston 315, a piston rod 310 and a flanging support sleeve 313. The cylinder barrel is provided with a vertical oil cylinder mounting hole with a downward opening, the cylinder barrel is vertically mounted on the upper portion of the oil cylinder mounting hole with the downward opening and hinged to the body frame through an upper oil cylinder pin 33, the upper oil cylinder pin extends in the front-back direction, and the cylinder barrel is matched with a column hole of the body frame and bears longitudinal force. The upper part of the flanging supporting sleeve is inserted into and fixed in the cylinder barrel to block the opening of the cylinder barrel, and specifically, an anti-rotation pin 312 can be installed at the joint of the flanging supporting sleeve and the end face of the cylinder barrel, and is axially fixed by a fastening screw 314. The piston rod penetrates downwards through the flanging supporting sleeve, and static seals and dynamic seals are arranged between the flanging supporting sleeve and the cylinder barrel as well as between the flanging supporting sleeve and the piston rod respectively. The lower part of the flanging supporting sleeve is provided with a through groove with a downward left-right extending notch, the lower end of the piston rod is hinged to an upper lug seat of the auxiliary sliding shoe through a lower oil cylinder pin 34, the lower oil cylinder pin extends in the front-back direction, the outer end face 321 of the upper lug seat of the auxiliary sliding shoe is parallel to the groove wall 3131 of the through groove, so that the lower end of the piston rod and the upper lug seat of the auxiliary sliding shoe form a hinged structure, the upper limit of the circumferential direction of the hinged structure is located in the through groove, and the auxiliary sliding shoe is prevented from laterally rotating. The force of the side rotation from the auxiliary shoe received by the turn-up support sleeve is transmitted to the cylinder tube 311 through the rotation preventing pin 312, and then transmitted to the frame of the body through the upper cylinder pin 33.
The hinge axis of the piston rod and the auxiliary sliding shoe extends forwards and backwards, namely is perpendicular to the coal wall, so that the auxiliary sliding shoe can adapt to the left-right longitudinal fluctuation of the body of the coal mining machine, a certain auxiliary supporting force can be kept at any time through constant hydraulic pressure, and the abrasion of the main supporting sliding shoe assembly 2 is reduced.
The oil circuit which is respectively communicated with the upper cavity and the lower cavity of the single-rod piston cylinder can be arranged in the solid structure of the cylinder barrel, the oil circuit can be connected with an external oil pipe or a joint and the like through an oil liquid connecting piece 35, and the oil liquid connecting piece 35 penetrates through the solid structure at the top of the cylinder barrel and the adjacent machine body frame.
The main supporting sliding shoe assembly, the auxiliary supporting sliding shoe assembly and the guiding sliding shoe are respectively arranged on the left side and the right side of the coal mining machine in a set, so that the coal mining machine with the suspended machine body has four fixed supporting positions and two floating supporting positions, and the stability of the coal mining machine can be better ensured.
Each support structure allows a certain swinging amount relative to the machine body frame, so that the support structure of the whole coal mining machine has strong adaptability to different working surface conditions possibly in which the coal mining machine is positioned while realizing support.
Claims (10)
1. The utility model provides a bearing structure of thin coal seam coal-winning machine which characterized in that: the coal mining machine comprises a machine body frame and a main supporting sliding shoe assembly, an auxiliary supporting sliding shoe assembly and a guiding sliding shoe which are connected to the machine body frame and support the machine body frame, wherein the main supporting sliding shoe assembly supports the middle part of the machine body frame in the front-back direction, the auxiliary supporting sliding shoe assembly and the guiding sliding shoe are respectively positioned in front of and behind the main supporting sliding shoe assembly, the auxiliary supporting sliding shoe assembly is supported at the position, close to the coal wall side, of the machine body frame in a floating mode through hydraulic pressure, and the guiding sliding shoe is supported at the position, close to the mining side, of the machine body frame.
2. The support structure of a low seam mining machine of claim 1, characterized in that: the main supporting sliding shoe assembly is provided with a front supporting surface and a rear supporting surface which are respectively a second supporting surface used for supporting on the bottom plate and a first supporting surface used for supporting on a shovel plate of the scraper conveyor.
3. The support structure of a low seam mining machine of claim 2, characterized in that: the main tributary props smooth boots subassembly and includes main smooth boots, bush and main smooth boots round pin axle, the lower part of fuselage frame is equipped with articulated seat, the seat hole fore-and-aft direction of articulated seat extends, the bush is installed downthehole in the seat, main smooth boots pass through main smooth boots round pin axle articulates on the articulated seat, main smooth boots realize that this articulated ear seat adopts the ears ear seat.
4. The support structure of a low seam mining machine of claim 3, characterized in that: the first supporting surface and the second supporting surface are located at the bottom of the main sliding shoe, the first supporting surface is higher than the second supporting surface, and the first supporting surface and the second supporting surface are both provided with wear-resistant layers.
5. The support structure of a low seam mining machine of claim 4, characterized in that: the guide sliding shoe comprises a base and an ear seat positioned above the base, the base comprises a front side wall, a rear side wall and a top plate connected between the tops of the front side wall and the rear side wall, the bottom of the front side wall or the rear side wall is provided with a barb, the left end and the right end of the base are respectively surrounded by a front side wall, a top plate, a rear side wall and a barb to form a guide groove extending left and right, the guide sliding shoes are hinged at the lower part of the machine body frame, the swing connection between the hinge and the frame of the machine body is realized through the ear hole on the ear seat, the hinge axis extends forwards and backwards, the ear holes are waist-shaped holes which are wide at the left and the right and narrow at the upper and the lower parts, the guide sliding shoes are provided with a left concave surface and a right concave surface which are concave towards the inner part of the base, the recessed surface is located on at least one of the left and right sides of the ear mount, the left and right top surfaces of the base spaced apart by the ear mount, and the transition connection between the left and right sides of the ear mount and the top surface of the base.
6. The support structure of a low seam mining machine of claim 5, characterized in that: the top surface of barb, the rear surface of preceding lateral wall, the bottom surface of roof and the preceding surface of back lateral wall are equipped with wearing layer, preceding wearing layer, last wearing layer and back wearing layer down respectively, wearing layer, preceding wearing layer, last wearing layer and back wearing layer are left right direction extension structure down.
7. The support structure of a low seam mining machine according to claim 1, 2, 3, 4, 5 or 6, characterized in that: the auxiliary supporting sliding shoe assembly comprises a single-rod piston cylinder and an auxiliary sliding shoe, the single-rod piston cylinder is vertically installed in the machine body frame and is located right above the auxiliary sliding shoe, the downward extending end of the piston rod is hinged to the upper portion of the auxiliary sliding shoe, and the hinge axis extends in the front-back direction.
8. The support structure of a low seam mining machine of claim 7, characterized in that: the single-rod piston cylinder comprises a cylinder barrel, a piston rod and a flanging support sleeve, wherein a vertical cylinder mounting hole with a downward opening is formed in a machine body frame, the cylinder barrel is vertically mounted on the upper portion of the cylinder mounting hole in a downward opening mode and is hinged to the machine body frame through an upper cylinder pin, the upper cylinder pin extends in the front-rear direction, the cylinder barrel is matched with a machine body frame column hole, the upper portion of the flanging support sleeve is inserted into and fixed in the cylinder barrel to block the opening of the cylinder barrel, the piston rod penetrates through the flanging support sleeve downwards, static seals and dynamic seals are respectively arranged between the flanging support sleeve and the cylinder barrel as well as between the piston rod, a through groove with a downward groove opening and extending in the left-right direction is formed in the lower portion of the flanging support sleeve, the lower end of the piston rod is hinged to an upper lug seat of the auxiliary slide through a lower cylinder, and the upper limit of the circumferential direction of the hinge structure is positioned in the through groove.
9. The support structure of a low seam mining machine of claim 8, characterized in that: and oil passages respectively communicated with the upper cavity and the lower cavity of the single-rod piston cylinder are arranged in the solid structure of the cylinder barrel, the oil passages are connected with an external oil pipe or a joint through an oil liquid connecting piece, and the oil liquid connecting piece penetrates through the solid structure at the top of the cylinder barrel and the adjacent machine body frame.
10. The support structure of a low seam mining machine of claim 7, characterized in that: the main supporting sliding shoe assembly, the auxiliary supporting sliding shoe assembly and the guide sliding shoe are respectively arranged in a set from left to right.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114135285A (en) * | 2021-12-06 | 2022-03-04 | 东北大学 | Thin vein mining robot |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114135285A (en) * | 2021-12-06 | 2022-03-04 | 东北大学 | Thin vein mining robot |
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