CN116553080A - Short-distance heavy-load double-drive chain transmission system of airborne swing type scraper conveyor - Google Patents
Short-distance heavy-load double-drive chain transmission system of airborne swing type scraper conveyor Download PDFInfo
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- CN116553080A CN116553080A CN202310462542.XA CN202310462542A CN116553080A CN 116553080 A CN116553080 A CN 116553080A CN 202310462542 A CN202310462542 A CN 202310462542A CN 116553080 A CN116553080 A CN 116553080A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 24
- 239000003245 coal Substances 0.000 claims description 29
- 238000007790 scraping Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000013461 design Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 13
- 238000003466 welding Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000003818 cinder Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
- B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
- B65G19/10—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a pair of belts, ropes or chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/28—Troughs, channels, or conduits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
- B65G23/06—Drums, rollers, or wheels with projections engaging abutments on belts or chains, e.g. sprocket wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
- B65G39/09—Arrangements of bearing or sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/10—Arrangements of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention belongs to the field of airborne swing type scraper conveyors, and particularly relates to a short-distance heavy-load double-drive chain transmission system of an airborne swing type scraper conveyor; comprises a double-driving chain wheel, a scraper chain unit and a tail roller assembly; the scraper chain unit comprises a chain plate, a chain plate pin shaft, a check ring, chain rings, scrapers and scraper pin shafts, wherein two scrapers which are installed reversely are connected through a front scraper pin shaft and a rear scraper pin shaft; the two reversely installed chain plates are connected by a front chain plate pin shaft and a rear chain plate pin shaft; each scraper is provided with two meshing roller surfaces II which are respectively aligned with the pin shafts of the front scraper and the rear scraper, and each chain plate is provided with two meshing roller surfaces I which are respectively aligned with the pin shafts of the front chain plate and the rear chain plate; the invention designs a single-drive sprocket chain transmission system which is conventionally used as a chain transmission system which is jointly driven by double-row toothed sprockets, and a plurality of teeth in the chain transmission system are jointly engaged on the premise of ensuring the swinging function of the scraper chain, so that the polygonal effect and the engagement impact effect of the chain transmission system are greatly improved, and low-noise conveying can be realized.
Description
Technical Field
The invention belongs to the field of airborne swing type scraper conveyors, and particularly relates to a short-distance heavy-load double-drive chain transmission system of an airborne swing type scraper conveyor.
Background
The existing short-distance heavy-load swing type scraper conveyor for underground coal mines is particularly an onboard short-distance heavy-load scraper conveyor system such as a continuous miner, an excavating and anchoring integrated machine and a shuttle car, is limited by underground space of the coal mines and the arrangement requirement of the whole structure size, and the chain transmission system of the existing equipment scraper conveyor adopts the chain transmission system provided by patent number CN200910175414.7, and a driving sprocket adopts a few-tooth design to meet the miniaturization and compactification requirements of the system. In practical use, the following problems exist:
(1) Along with the development of the rapid tunneling technology, the mining equipment is developed towards high power, the corresponding mining capability is continuously improved, and in order to realize the matching of mining and transportation capability, the characteristics of high chain speed and large chain pitch of the chain transmission system of the scraper conveyor are formed so as to meet the heavy load driving and transportation of the system. The existing chain wheel has less teeth number, and the chain with large pitch has the inherent polygonal effect and meshing impact effect of chain transmission under the working condition of high chain speed, so that the system has large vibration noise and unstable operation.
(2) The single tooth of the driving chain wheel is stressed greatly under the design of few teeth, the tooth surface is worn quickly, the phenomenon of broken teeth is easy to occur, and the use reliability of the whole equipment is seriously affected.
(3) The tail roller component plays a role in guiding the scraper chain in the chain transmission system, and in the prior art, the tail roller is only a roller type guiding support, when the conveyor tail swings left and right, the scraper chain easily swings and deviates along with the conveyor tail, so that one side of the scraper chain and one side of the conveying groove are eccentrically worn and chain clamping phenomenon occurs, and breakage failure of the scraper chain is caused.
(4) The tail roller assembly is arranged in the coal material transportation enclosure, and coal materials are easy to invade the seals on the two sides due to high-speed rotation, collision and friction, so that the seal abrasion failure is accelerated, and oil leakage and bearing part damage in the tail roller assembly are caused.
(5) Float coal is not cleaned up at the bottom of a transport groove in transportation, so that a lifting phenomenon exists in the operation of a scraper chain, the normal engagement of a chain wheel and the scraper chain is influenced, a chain dropping phenomenon is easily caused, system impact is caused, and the operation stability of a chain transmission system is damaged.
(6) The equipment conveying scraper chain is required to have a bidirectional bending swing function of longitudinal swing and transverse swing. The traditional scraper chain is formed by hinging a single lug ten-joint and a double lug ten-joint through a longitudinal rotary pin shaft in order to meet the transverse swinging function, however, the single lug and double lug hinged assembly is complex in structure, on one hand, interference fit is ensured by adopting a tool during assembly, and on the other hand, the double lug ten-joint and the rotary pin shaft are welded and fixed after assembly. The complex manufacturing and assembly processes bring a number of instabilities to the life and reliability of the scraper chain, leading to frequent chain breakage accidents during use of the scraper chain.
(7) The scraper chain bears dynamic, static and alternating loads in use, the requirements on the mechanical properties of the materials of the scraper chain constituent units are extremely high, and medium carbon high-strength alloy steel is adopted for the materials. The medium carbon alloy steel has poor welding performance, and has high requirements on welding reliability and welding process. Welding lines are easy to crack in the use process of the welding structure of the double lug ten-joint and the middle rotary pin shaft and the welding structure of the scraper end head and the pin shaft in the existing scraper chain structure, so that the chain breakage phenomenon of the scraper chain is caused.
Disclosure of Invention
The invention aims to reduce vibration and noise of a scraper conveying system, improve the use stability and reliability of a chain transmission system, reduce equipment maintenance cost, reduce equipment downtime and meet the requirement of quick tunneling of equipment.
The invention provides the following technical scheme: the short-distance heavy-duty double-drive chain transmission system of the airborne swing type scraper conveyor comprises a double-drive chain wheel, scraper chain units and a tail roller assembly, wherein a double-drive scraper chain formed by connecting a plurality of scraper chain units in series surrounds between the double-drive chain wheel and the tail roller assembly;
the scraper chain unit comprises a chain plate, a chain plate pin shaft, a check ring, chain rings, scrapers and scraper pin shafts, wherein two scrapers which are installed in opposite directions are connected by a front scraper pin shaft and a rear scraper pin shaft, and two ends of the scraper pin shafts penetrate through the scraper connection check ring to prevent falling; the two reversely installed chain plates are connected by a front chain plate pin shaft and a rear chain plate pin shaft; the two ends of the pin shaft of the chain plate penetrate through the chain plate connecting check ring to prevent the chain plate pin shaft from falling off; each scraper is provided with two meshing roller surfaces II which are respectively aligned with the pin shafts of the front scraper and the rear scraper, and each chain plate is provided with two meshing roller surfaces I which are respectively aligned with the pin shafts of the front chain plate and the rear chain plate; the meshing roller surface I and the meshing roller surface II can be meshed with the tooth surface of the double-drive sprocket;
the chain plate is connected with the scraper through chain links between the adjacent chain plate pin shafts and the scraper pin shafts; the holes penetrating the chain plate pin shafts in the chain links are round holes, the holes penetrating the scraper pin shafts are long holes, and the end faces, close to the chain links, of the scraper are deflected inwards to allow the chain links to swing; the chain link is provided with a front driven sprocket engaging surface and a rear driven sprocket engaging surface, the driven sprocket engaging surface can be engaged with the driven sprocket teeth on the tail roller assembly, and the two driven sprocket engaging surfaces are aligned with the round hole and the long hole respectively.
Further, the tail roller assembly comprises a tail roller shaft, an end cover, a sealing gasket, screws, a labyrinth ring and a driven sprocket; the tail roller shaft penetrates through a shaft hole of the driven sprocket and is supported by a bearing in the shaft hole, an inner ring of the bearing is limited by a shaft shoulder of the tail roller shaft, an outer ring of the bearing is limited by an end cover, the end cover is connected with the driven sprocket through a screw, a labyrinth ring is positioned at the outer side of the end cover, and a sealing gasket is arranged between the labyrinth ring and the end cover;
the labyrinth ring is clamped and fixed with the tail drum shaft through screws and rotates together, the outer ring of the labyrinth ring is provided with a pressing edge for coating the sealing gasket, the labyrinth ring is an opening ring for realizing the clamping degree with the tail drum shaft through adjusting the screw-in depth, and the labyrinth ring and the sealing gasket can axially move along the tail drum shaft and jointly realize the adjustment of a labyrinth gap with the sealing gasket.
Further, the upper and lower surfaces of the scraping plate are provided with coal storage grooves.
Further, the area between the two driven sprocket meshing surfaces on the chain ring is hollowed out to form a coal unloading hole.
Further, the driven sprocket is a single-row 4-tooth sprocket, the double-drive sprocket is a double-row 7-tooth sprocket, and the pitch of the driven sprocket is 2 times of that of the double-drive sprocket; the axle distance between two link plate pin shafts connected with the same link plate is equal to the pitch of the double-drive sprocket, and the axle distance between the link plate pin shafts and the scraper pin shaft crossing one link plate pin shaft is equal to the pitch of the driven sprocket.
Further, the flights, link plates and links are all integrally forged parts.
Compared with the prior art, the invention has the advantages that:
the invention designs a single-drive sprocket chain transmission system which is conventionally used as a chain transmission system which is jointly driven by double-row toothed sprockets, and a plurality of teeth in the chain transmission system are jointly engaged on the premise of ensuring the swinging function of the scraper chain, so that the polygonal effect and the engagement impact effect of the chain transmission system are greatly improved, and low-noise conveying can be realized. Under the meshing of the double rows of teeth, the single tooth stress of the chain wheel is reduced, the abrasion of gear teeth is improved, the risk of tooth breakage is reduced, and the service life of the chain wheel is prolonged.
The tail roller assembly is internally provided with a 4-tooth driven chain wheel, which has the functions of guiding the scraper chain and preventing the eccentric wear of the scraper chain and the chain clamping phenomenon when the conveying groove swings. The sealing parts at the two ends of the tail roller assembly are provided with the labyrinth rings and the sealing gaskets, the labyrinth rings and the end covers form a labyrinth, and the sealing gaskets are clamped between the labyrinth rings and the end covers, so that the coal dust can be further prevented from entering the sealing. The labyrinth ring and the tail drum shaft are clamped and fixed and rotate together, the labyrinth ring is an opening ring which can be screwed into the depth through the adjusting screw to achieve the clamping degree with the tail drum shaft, and meanwhile, the labyrinth ring and the sealing gasket can move along the axial direction of the tail drum shaft, so that the adjustment of a labyrinth gap is achieved, and the dustproof effect of the labyrinth is further improved.
The roller meshing pin shaft and the chain plate are designed into a whole, so that the diameter of the roller is increased, the meshing contact area of the sprocket teeth is increased, and the load is uniformly distributed along the tooth surface, thereby improving the meshing strength, further reducing the abrasion probability of the sprocket teeth and improving the transmission reliability; meanwhile, the strength of the roller pin shaft can be improved, and fatigue fracture failure is prevented.
The whole scraper chain has no welding structure, so that the unreliability caused by welding is reduced. The scraping plates, the chain plates and the chain links are all integrally forged, so that the manufacturing and assembling processes are greatly optimized, and meanwhile, the scraping plates, the chain plates and the chain links are convenient to disassemble, assemble, maintain and replace. The installation and fixation of the chain plate and the scraping plate all adopt reliable check ring shaft end limiting structures, so that the problem of integral replacement of the whole scraping plate chain unit after the failure of the traditional welding structure chain parts is solved, and the effects of energy conservation and efficiency improvement are achieved.
The upper and lower surfaces of the scraping plate are symmetrically provided with the floating coal storage grooves, so that the function of storing coal transportation materials can be achieved, a layer of solid friction protection layer is formed, the contact of the scraping plate and steel of a bottom plate of the transportation groove is avoided, the contact of the coal transportation materials and the bottom plate of the transportation groove is avoided, and the friction resistance and the vibration buffering function are reduced; meanwhile, due to the arrangement of the symmetrical floating coal storage tanks, friction can be reduced on both the scraping plates and the upper and lower chain channels of the conveying tanks in the conveying process, the effect of vibration is reduced, and the vibration reduction and noise reduction effects are further achieved.
The coal discharging hole is arranged in the middle of the chain ring, so that the problem that coal cinder materials are accumulated between the chain wheel and the meshing roller surface during swinging can be solved, the swinging function is influenced, the distribution of the coal cinder materials is realized, and the flexible swinging is ensured; meanwhile, the coal unloading holes of the chain rings are formed, so that the float coal materials in the conveying grooves overflow from the coal unloading holes during chain conveying, cleaning of float coal is realized, the phenomenon that the float coal lifts the chain is avoided, and then the chain is disengaged when the chain is meshed with the chain wheels.
Drawings
FIG. 1 is a schematic diagram of a dual drive chain transmission system;
FIG. 2 is a schematic view of the structure of a scraper chain unit;
FIG. 3 is a schematic structural view of a link plate;
FIG. 4 is a schematic view of the structure of the scraper;
FIG. 5 is a schematic structural view of the link;
FIG. 6 is a schematic view of a scraper chain swing;
FIG. 7 is a schematic view of a dual drive sprocket;
FIG. 8 is a schematic structural view of the tail drum assembly;
FIG. 9 is a cross-sectional view of the tail drum assembly;
FIG. 10 is a schematic structural view of a labyrinth ring;
in the figure: 1-a double drive sprocket; 2-scraper chain units; 2.1-link plates; 2.1-1-intermeshing roll surfaces I; 2.1-2-link plate pin holes; 2.2-link plate pin shafts; 2.3-check ring; 2.4-links; 2.4-1-link round holes; 2.4-2-link annular holes; 2.4-3-coal unloading holes; 2.4-4-driven sprocket engagement surface; 2.5-scraping plate; 2.5-1-scraper pin holes; 2.5-2-deflecting end faces; 2.5-3-intermeshing roll surfaces II; 2.5-4-coal storage tank; 2.6-scraping plate pin shafts; 2.7-chain pitch 1; 2.8-chain pitch 2; 3-tail drum assembly; 3.1-tail drum shaft; 3.2-end caps; 3.3-sealing gasket; 3.4-screw; 3.5-labyrinth ring; 3.6-driven sprocket.
Detailed Description
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
As shown in fig. 1: the short-distance heavy-duty double-drive chain transmission system of the airborne swing type scraper conveyor comprises a double-drive chain wheel 1, a scraper chain unit 2 and a tail roller assembly 3, wherein a double-drive scraper chain formed by connecting a plurality of scraper chain units 2 in series surrounds between the double-drive chain wheel 1 and the tail roller assembly 3; the double-drive scraper chain can be formed by connecting a plurality of scraper chain units 2 end to end along a conveying groove according to the length of the conveying groove of the scraper conveyor.
As shown in fig. 2: the scraper chain unit 2 comprises a chain plate 2.1, a chain plate pin 2.2, a retainer ring 2.3, a chain ring 2.4, a scraper 2.5 and a scraper pin 2.6. As shown in fig. 3, the link plate 2.1 includes a mating roller face I2.1-1, a link plate pin hole 2.1-2. As shown in FIG. 4, the scraper blade 2.5 comprises a meshing roller surface II2.5-3, a deflection end surface 2.5-2, a coal storage tank 2.5-4 and a scraper pin hole 2.5-1.
As shown in fig. 2 and 6: the two scraping plates 2.5 which are installed in the opposite direction are connected through the front scraping plate pin shaft 2.6 and the rear scraping plate pin shaft 2.6, the scraping plate pin shaft 2.6 penetrates through the scraping plate pin hole 2.5-1, two ends of the scraping plate pin shaft 2.6 penetrate through the scraping plate 2.5 to be connected with the retaining ring 2.3 for preventing the falling-off, and the retaining ring 2.3 plays a role in fixing the scraping plate 2.5 to prevent the falling-off of the scraping plate 2.5. The two reversely installed chain plates 2.1 are connected by a front chain plate pin shaft 2.2 and a rear chain plate pin shaft 2.2; the chain plate pin shaft 2.2 penetrates through the chain plate pin hole 2.1-2, two ends of the chain plate pin shaft 2.2 penetrate through the chain plate 2.1 to be connected with the check ring 2.3 for preventing the release, and the check ring 2.3 plays a role in fixing the chain plate 2.1 to prevent the release of the chain plate 2.1. Each scraper 2.5 is provided with two meshing roller surfaces II2.5-3 which are respectively aligned with the pin shafts of the front scraper and the rear scraper, and each chain plate 2.1 is provided with two meshing roller surfaces I2.1-1 which are respectively aligned with the pin shafts of the front chain plate and the rear chain plate; the meshing roller surfaces I2.1-1 and II2.5-3 can mesh with the tooth flanks of the dual drive sprocket 1.
As shown in fig. 5: the chain ring 2.4 comprises a chain ring round hole 2.4-1, a chain ring annular hole 2.4-2, a coal discharging hole 2.4-3 and a driven chain wheel engagement surface 2.4-4. The link plate pin shaft 2.2 passes through the link ring round hole 2.4-1 and the link plate pin hole 2.1-2 to realize the connection between the link plate 2.1 and the link ring 2.4; the scraper pin shaft 2.6 passes through the chain ring-shaped hole 2.4-2 and the scraper pin hole 2.5-1 to realize the connection of the scraper 2.5 and the chain ring 2.4, the end surface of the scraper 2.5 close to the chain ring 2.4 deflects inwards to allow the chain ring 2.4 to swing, and the chain ring-shaped hole 2.4-2 can meet the requirement of the left-right swing of a scraper chain at a certain angle. The chain ring 2.4 is provided with a front driven sprocket engaging surface 2.4-4 and a rear driven sprocket engaging surface 2.4-4, the driven sprocket engaging surface 2.4-4 can be engaged with the driven sprocket teeth on the tail drum assembly 3, and the two driven sprocket engaging surfaces 2.4-4 are aligned with the round hole and the long hole respectively.
The upper and lower surfaces of the scraping plate 2.5 are provided with coal storage tanks 2.5-4, and the coal storage tanks 2.5-4 can store certain cinder materials in material transportation, so that the direct contact of the scraping plate surface and steel on the transportation tank surface is avoided, the effects of reducing friction resistance and buffering vibration are achieved, and noise is reduced.
The area between the two driven sprocket meshing surfaces 2.4-4 on the chain ring 2.4 is hollowed to form a coal unloading hole 2.4-3, and the coal unloading hole 2.4-3 can realize overflow of cinder materials in scraper transportation, so that the influence of accumulation of cinder materials on normal meshing of sprockets is avoided.
As shown in fig. 8, 9 and 10: the tail roller assembly 3 comprises a tail roller shaft 3.1, an end cover 3.2, a sealing gasket 3.3, screws 3.4, a labyrinth ring 3.5 and a driven sprocket wheel 3.6; the tail roller shaft 3.1 passes through a shaft hole of the driven sprocket 3.6 and is supported by a bearing in the shaft hole, the inner ring of the bearing is limited by a shaft shoulder of the tail roller shaft 3.1, the outer ring of the bearing is limited by an end cover 3.2, the end cover 3.2 is connected with the driven sprocket 3.6 through a screw, the labyrinth ring 3.5 is positioned at the outer side of the end cover 3.2, and a sealing gasket 3.3 is arranged between the labyrinth ring 3.5 and the end cover 3.2; labyrinth ring 3.5 forms the maze with end cover 3.2, can prevent the invasion of coal dust and seals, and sealing pad 3.3 can further prevent coal dust from entering the seal. The sealing gasket 3.3 can be made in different thickness, so that the labyrinth gap can be adjusted.
The labyrinth ring 3.5 is clamped and fixed with the tail drum shaft 3.1 through screws and rotates together, the outer ring of the labyrinth ring 3.5 is provided with a pressing edge for wrapping the sealing gasket 3.3, the labyrinth ring 3.5 is an opening ring for realizing the clamping degree with the tail drum shaft 3.1 through adjusting the screw-in depth, the labyrinth ring 3.5 and the sealing gasket 3.3 can axially move along the tail drum shaft 3.1, the adjustment of a labyrinth gap is jointly realized with the sealing gasket, the labyrinth dustproof effect is further improved, and the sealing is effectively protected.
As shown in fig. 7 and 8: the driven sprocket 3.6 is a single-row 4-tooth sprocket, the double-drive sprocket 1 is a double-row 7-tooth sprocket, and the ratio relationship between the pitch of the driven sprocket 3.6 and the pitch of the double-drive sprocket 1 is 2 times. The chain pitch 1 and the chain pitch 2 numerically satisfy l1=2l2, the chain pitch 1 numerically equals the driven sprocket pitch, and the chain pitch 2 numerically equals the double drive sprocket pitch.
The scraping plate 2.5, the chain plate 2.1 and the chain ring 2.4 are all integrally forged parts, so that the manufacturing and assembling processes are greatly optimized, and meanwhile, the scraping plate is convenient to disassemble, assemble, maintain and replace.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The utility model provides an airborne oscillating scraper conveyor short distance heavy load double drive chain transmission system which characterized in that: the scraper chain comprises a double-drive chain wheel (1), scraper chain units (2) and a tail roller assembly (3), wherein a double-drive scraper chain formed by connecting a plurality of scraper chain units (2) in series surrounds between the double-drive chain wheel (1) and the tail roller assembly (3);
the scraper chain unit (2) comprises a chain plate (2.1), a chain plate pin shaft (2.2), a check ring (2.3), chain rings (2.4), scrapers (2.5) and scraper pin shafts (2.6), wherein the two scrapers (2.5) which are reversely installed are connected by the front scraper pin shaft and the rear scraper pin shaft (2.6), and two ends of the scraper pin shaft (2.6) penetrate through the scrapers (2.5) to be connected with the check ring (2.3) to prevent falling; the two reversely installed chain plates (2.1) are connected by a front chain plate pin shaft (2.2) and a rear chain plate pin shaft (2.2); the two ends of the chain plate pin shaft (2.2) penetrate through the chain plate (2.1) to be connected with the check ring (2.3) to prevent the falling off; each scraper (2.5) is provided with two meshing roller surfaces II (2.5-3) aligned with the pin shafts of the front scraper and the rear scraper respectively, and each chain plate (2.1) is provided with two meshing roller surfaces I (2.1-1) aligned with the pin shafts of the front chain plate and the rear chain plate respectively; the meshing roller surface I (2.1-1) and the meshing roller surface II (2.5-3) can be meshed with the tooth surface of the double-drive sprocket (1);
the chain plate (2.1) is connected with the scraping plate (2.5) through a chain ring (2.4) between the adjacent chain plate pin shaft (2.2) and the scraping plate pin shaft (2.5); the holes penetrating the chain plate pin shafts (2.2) in the chain links (2.4) are round holes, the holes penetrating the scraper pin shafts (2.5) are long holes, and the end faces of the scrapers (2.5) close to the chain links (2.4) deflect inwards to allow the chain links (2.4) to swing; the chain ring (2.4) is provided with a front driven sprocket engaging surface and a rear driven sprocket engaging surface (2.4-4), the driven sprocket engaging surfaces (2.4-4) can be engaged with the driven sprocket teeth on the tail roller assembly (3), and the two driven sprocket engaging surfaces (2.4-4) are aligned with the round hole and the long hole respectively.
2. The on-board oscillating scraper conveyor short-range heavy-duty dual-drive chain drive system of claim 1, wherein: the tail roller assembly (3) comprises a tail roller shaft (3.1), an end cover (3.2), a sealing gasket (3.3), screws (3.4), a labyrinth ring (3.5) and a driven sprocket (3.6); the tail roller shaft (3.1) passes through a shaft hole of the driven sprocket (3.6), is supported by a bearing in the shaft hole, the inner ring of the bearing is limited by the shaft shoulder of the tail roller shaft (3.1), the outer ring of the bearing is limited by the end cover (3.2), the end cover (3.2) is connected with the driven sprocket (3.6) through a screw, the labyrinth ring (3.5) is positioned at the outer side of the end cover (3.2), and a sealing gasket (3.3) is arranged between the labyrinth ring (3.5) and the end cover (3.2);
the labyrinth ring (3.5) is clamped and fixed with the tail drum shaft (3.1) through screws and rotates together, the outer ring of the labyrinth ring (3.5) is provided with a pressing edge for wrapping the sealing gasket (3.3), the labyrinth ring (3.5) is an opening ring for realizing the clamping degree with the tail drum shaft (3.1) through adjusting the screw-in depth, and the labyrinth ring (3.5) and the sealing gasket (3.3) can axially move along the tail drum shaft (3.1) and jointly realize the adjustment of a labyrinth gap with the sealing gasket.
3. The on-board oscillating scraper conveyor short-range heavy-duty dual-drive chain drive system of claim 2, wherein: the upper and lower surfaces of the scraping plate (2.5) are provided with coal storage tanks (2.5-4).
4. The on-board oscillating scraper conveyor short-range heavy-duty dual-drive chain drive system of claim 3, wherein: the area between the two driven sprocket meshing surfaces (2.4-4) on the chain ring (2.4) is hollowed out to form a coal unloading hole (2.4-3).
5. The on-board oscillating scraper conveyor short-range heavy-duty dual-drive chain drive system of claim 4, wherein: the driven sprocket (3.6) is a single-row 4-tooth sprocket, the double-drive sprocket (1) is a double-row 7-tooth sprocket, and the pitch of the driven sprocket (3.6) is 2 times that of the double-drive sprocket (1); the axle distance between two link plate pin shafts (2.2) connected with the same link plate (2.1) is equal to the pitch of the double-drive sprocket (1), and the axle distance between the link plate pin shafts (2.2) and the scraper pin shaft (2.6) crossing one link plate pin shaft (2.2) is equal to the pitch of the driven sprocket (3.6).
6. The on-board oscillating scraper conveyor short-range heavy-duty dual-drive chain drive system of claim 5, wherein: the scraping plate (2.5), the chain plate (2.1) and the chain ring (2.4) are all integrally forged parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310462542.XA CN116553080A (en) | 2023-04-26 | 2023-04-26 | Short-distance heavy-load double-drive chain transmission system of airborne swing type scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310462542.XA CN116553080A (en) | 2023-04-26 | 2023-04-26 | Short-distance heavy-load double-drive chain transmission system of airborne swing type scraper conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116553080A true CN116553080A (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310462542.XA Pending CN116553080A (en) | 2023-04-26 | 2023-04-26 | Short-distance heavy-load double-drive chain transmission system of airborne swing type scraper conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116553080A (en) |
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2023
- 2023-04-26 CN CN202310462542.XA patent/CN116553080A/en active Pending
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