CN108861343B - Sprocket device of scraper conveyor - Google Patents
Sprocket device of scraper conveyor Download PDFInfo
- Publication number
- CN108861343B CN108861343B CN201810951540.6A CN201810951540A CN108861343B CN 108861343 B CN108861343 B CN 108861343B CN 201810951540 A CN201810951540 A CN 201810951540A CN 108861343 B CN108861343 B CN 108861343B
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- Prior art keywords
- oil
- bearing seat
- chain wheel
- shaft
- gear
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Links
- 238000007667 floating Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 19
- 239000004519 grease Substances 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 11
- 238000005461 lubrication Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 124
- 235000014121 butter Nutrition 0.000 description 6
- 238000005065 mining Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 125000006850 spacer group Chemical group 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
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
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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
Abstract
The invention relates to the technical field of supporting devices of underground coal mine conveying equipment, in particular to a chain wheel device of a scraper conveyor, aiming at a chain wheel assembly in a thin oil lubrication mode, an oil baffle disc is additionally arranged on a chain wheel body, an oil receiving groove is additionally arranged at a corresponding position of a connecting cylinder, the oil receiving groove extends to the shaft end of the chain wheel assembly through an oil hole and is connected with a gear pump fixed at the shaft end through an oil pipe, and the pump outlet is connected with an oil tank through a shaft end cover, so that a circulating system is formed. The gear pump is powered by the rotation of the chain wheel, a pair of speed-increasing gears are added to improve the suction force of the gear pump, and the gear pump is connected with the chain wheel oil tank, so that the self lubrication can be ensured, the temperature of the oil tank can be reduced, and the lubrication of the bearing can be improved. If the chain wheel assembly leaks oil in the operation process, the leaked oil is pumped back to the oil tank through the gear pump circulation system, so that the oil shortage failure of the chain wheel assembly is reduced, the reliability of a chain transmission system is improved, and the operation efficiency and the service life of the scraper conveyor are improved.
Description
Technical Field
The invention relates to the technical field of supporting devices of underground coal mine transportation equipment, in particular to a chain wheel device of a scraper conveyor.
Background
At present, various scraper conveyors and transfer conveyors are used on underground general mining and fully-mechanized mining working surfaces of domestic coal mines, and the transmission part adopts an explosion-proof motor, a speed reducer and a chain wheel assembly. The sprocket assembly comprises a sprocket body and a connecting cylinder. The chain wheel component is a force transmission component and also a wearing component, and is subjected to pulsation, impact load and the like besides static load in operation.
The scraper conveyor mainly bears the task of continuously conveying raw coal mined by the coal mining machine to the conveyor in the underground fully-mechanized coal mining working face of the coal mine, so that the raw coal of the fully-mechanized coal mining working face is ensured to be continuously conveyed out. On the premise that the strength of the whole scraper conveyor meets the requirement, the most frequent part with faults of the driving part is a chain wheel assembly, and the most frequent faults in the chain wheel assembly are damage of sealing elements and damage of bearings caused by leakage of lubricating oil, so that the scraper conveyor cannot normally operate. Thus, solving the problem of oil leakage from the sprocket assembly will be one of the key factors in improving the operational reliability of the scraper conveyor.
As scraper conveyors move toward high power, heavy, and extra heavy, the problem of oil leakage from the sprocket assembly is a major form of failure of the scraper conveyor sprocket. Therefore, the problem of oil leakage of the chain wheel needs to be solved.
Disclosure of Invention
The invention aims to provide a chain wheel device of a scraper conveyor, which optimizes and improves a sealing and dustproof structure of a chain wheel assembly, reduces oil shortage failure of a driving chain wheel, improves the reliability of a chain transmission system, and improves the operation efficiency and the service life of the scraper conveyor.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the sprocket device of the scraper conveyor comprises a gear pump, a first bearing seat, a sprocket body, a second bearing seat and a shaft, wherein the first bearing seat, the sprocket body and the second bearing seat are sequentially arranged on the shaft, the first bearing seat is rotationally connected to the shaft through a bearing, the sprocket body is fixed on the shaft, and the second bearing seat is rotationally connected to the shaft through another bearing; a first bearing seat floating oil seal is arranged between the first bearing seat and the sprocket body, one end of the first bearing seat floating oil seal is fixedly connected with the first bearing seat, and the other end of the first bearing seat floating oil seal is in sliding connection with the sprocket body; a second bearing seat floating oil seal is arranged between the second bearing seat and the chain wheel body, one end of the second bearing seat floating oil seal is fixedly connected with the second bearing seat, and the other end of the second bearing seat floating oil seal is in sliding connection with the chain wheel body; the first bearing seat is provided with a first oil receiving groove below the floating oil seal of the first bearing seat, the second bearing seat is provided with a second oil receiving groove below the floating oil seal of the second bearing seat, the first oil receiving groove and the second oil receiving groove are annular, and the design of the oil receiving groove reduces the gap when the oil receiving groove is meshed with the oil baffle disc of the chain wheel body.
An end cover is fixedly connected to one end, away from the chain wheel body, of the bearing seat, and a gear pump is arranged on the end cover; a transparent cover is arranged at one end, far away from the sprocket body, of the second bearing; one end of the shaft is arranged in the bearing seat, one end, close to the end cover, of the shaft is fixedly connected with a gland, the other end of the shaft extends out of the through cover, and one end, far away from the through cover, of the shaft is connected with the output end of the speed reducer;
the gear pump oil outlet is communicated with the oil return pipe, the oil return pipe is communicated with the oil tank, the gear pump oil inlet is communicated with the outlet of the one-way valve group, the inlet of the one-way valve group is respectively communicated with the first oil suction pipe, the second oil suction pipe and the third oil suction pipe, the other end of the first oil suction pipe is communicated with the oil tank, the second oil suction pipe is communicated with the first oil receiving groove, and the third oil suction pipe is communicated with the second oil receiving groove.
A large gear is fixedly connected to the gland; the end cover is penetrated and provided with a gear shaft, one end of the gear shaft is internally of a hollow structure, the outside of the gear shaft is rotationally connected with the end cover, the other end of the gear shaft is meshed with the large gear through a gear, the suction force of the gear pump is increased, and accordingly the oil leaked from the chain wheel is guaranteed to be smoothly sucked back.
The large gear is positioned on the central axis of the gland.
The gear pump driving shaft is inserted into one hollow end of the gear shaft and is fixedly connected with the gear shaft.
The first bearing seat and the second bearing seat are fixedly connected with the machine head frame, the machine head frame is fixedly connected with the connecting pad frame, and the connecting pad frame is fixedly connected with the speed reducer.
The gear pump is arranged on the outer side of the machine head frame, so that interference with operation parts can be avoided, and convenience in assembling a protective cover is facilitated to protect the gear pump system.
Labyrinth seal teeth are arranged on the connecting end surface of the first bearing seat and the chain wheel body and the connecting end surface of the second bearing seat and the chain wheel body.
The end surface of the connecting end surface of the sprocket body and the first bearing seat and the end surface of the connecting end surface of the sprocket body and the second bearing seat are respectively provided with a labyrinth sealing chamber which is matched with the labyrinth sealing teeth.
A grease filling hole is arranged above the first bearing seat and the second bearing seat and close to one end of the labyrinth seal teeth, the section of the grease filling hole is L-shaped, one end of the grease filling hole is communicated with the top surface of the bearing seat, the other end is communicated with the side surface of the bearing seat, after the sprocket assembly is completed, the labyrinth is filled with butter through the butter oil filling hole, the labyrinth is filled with butter when the sprocket rotates, the labyrinth cavity can be filled with butter, and in addition, the labyrinth cavity is required to be filled with butter in a certain period, so that the dustproof effect can be better achieved.
The sprocket body is provided with the oil baffle disc that meets oil groove, second with first oil groove respectively with first bearing frame connection terminal surface and sprocket body and second bearing frame connection terminal surface, the oil baffle disc is kept away from the central axis and outwards inclines.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a chain wheel device of a scraper conveyor, which aims at a chain wheel assembly in a thin oil lubrication mode, an oil baffle disc is added on a chain wheel body, an oil receiving groove is added at a corresponding position of a connecting cylinder, the oil receiving groove extends to the shaft end of the chain wheel assembly through an oil hole and is connected with a gear pump fixed at the shaft end through an oil pipe, and a pump outlet is connected with an oil tank through a shaft end cover, so that a circulating system is formed. The gear pump is powered by the rotation of the chain wheel, a pair of speed-increasing gears are added to improve the suction force of the gear pump, and the gear pump is connected with the chain wheel oil tank, so that the self lubrication can be ensured, the temperature of the oil tank can be reduced, and the lubrication of the bearing can be improved. If the chain wheel assembly leaks oil in the operation process, the leaked oil is pumped back to the oil tank through the gear pump circulation system, so that the oil shortage failure of the chain wheel assembly is reduced, the reliability of a chain transmission system is improved, and the operation efficiency and the service life of the scraper conveyor are improved. The chain wheel device provided by the invention has the advantages of compact structure, reasonable layout and easy operation, can effectively reduce the temperature in the chain wheel assembly, improve the bearing lubrication efficiency, prolong the service life of the bearing, solve the problem of oil leakage of the chain wheel through the circulation of oil in the chain wheel assembly, reduce the damage of the chain wheel bearing caused by oil shortage, improve the reliability of a chain transmission system, and improve the operation efficiency and the service life of the scraper conveyor.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a sprocket assembly of a scraper conveyor according to the present invention;
FIG. 2 is a front view of the first bearing housing;
FIG. 3 is a side view of the first bearing housing;
FIG. 4 is a front view of the sprocket body;
FIG. 5 is a side view of the sprocket body;
FIG. 6 is a schematic view of the first bearing seat engaging the sprocket body;
FIG. 7 is a schematic illustration of an inlet oil seal;
FIG. 8 is a schematic diagram of a sprocket assembly;
FIG. 9 is a front view of a gear pump and piping;
FIG. 10 is a side view of a gear pump and piping;
FIG. 11 is a schematic view of a speed increasing gear configuration;
in the figure: the oil seal device comprises a first bearing seat 1, a sprocket body 2, a second bearing seat 3, a shaft 4, a bearing 5, a first floating oil seal 6, a second floating oil seal 7, an end cover 8, a gear pump 9, a transparent cover 10, a gland 11, a first oil receiving groove 12, a second oil receiving groove 13, an oil return pipe 14, a one-way valve group 15, a first oil suction pipe 16, a second oil suction pipe 17, a third oil suction pipe 18, a labyrinth seal tooth 19, a grease filling hole 20, a labyrinth seal chamber 21, an oil baffle disc 22, a head frame 23, a coupling bracket 24, a large gear 25, a gear shaft 26, a distance sleeve 27, a first sealing ring 28, a retainer ring 29, a second sealing ring 30, a plug 31, a gland 32, a spacer ring 33, a gear shaft bearing 34 and an inlet oil seal 35.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 8, a sprocket device of a scraper conveyor comprises a first bearing seat 1, a sprocket body 2, a second bearing seat 3 and a shaft 4, wherein the first bearing seat 1, the sprocket body 2 and the second bearing seat 3 are sequentially arranged on the shaft 4, the first bearing seat 1 is rotationally connected to the shaft 4 through a bearing, the sprocket body 2 is fixed on the shaft 4, and the second bearing seat 3 is rotationally connected to the shaft 4 through another bearing; a first floating oil seal 6 is arranged between the first bearing seat 1 and the sprocket body 2, and a second floating oil seal 7 is arranged between the second bearing seat 3 and the sprocket body 2; an end cover 8 is fixedly connected to one end, far away from the sprocket body 2, of the first bearing seat 1, and a gear pump 9 is arranged on the end cover 8; a transparent cover 10 is arranged at one end of the second bearing 3 far away from the sprocket body 2; one end of the shaft 4 is arranged in the first bearing seat 1, one end, close to the end cover 8, of the shaft 4 is fixedly connected with a pressing cover 11, the other end of the shaft 4 extends out of the transparent cover 10, a plug 31 is arranged at the tail end, far away from the transparent cover 10, of the shaft 4, the tail end of an oil port in the middle is sealed at the outer side of the plug 31 through a pressing cover 32, and one end, far away from the transparent cover 10, of the shaft 4 is connected with the output end of the speed reducer; the first bearing seat 1 is provided with a first oil receiving groove 12 at the radial outer side of the first floating oil seal 6, the second bearing seat 3 is provided with a second oil receiving groove 13 at the radial outer side of the second floating oil seal 7, and the first oil receiving groove 12 and the second oil receiving groove 13 are annular; the connecting end faces of the first bearing seat 1 and the sprocket body 2 and the connecting end faces of the second bearing seat 3 and the sprocket body 2 are respectively provided with a labyrinth seal tooth 19, one end, close to the labyrinth seal tooth 19, of the upper part of the first bearing seat 1 and the upper part of the second bearing seat 3 is provided with a grease filling hole 20, the cross section of the grease filling hole 20 is L-shaped, one end of the grease filling hole 20 is communicated with the top surface of the bearing seat, and the other end of the grease filling hole is communicated with the side surface of the bearing seat; the connecting end surface of the sprocket body 2 and the first bearing seat 1 and the connecting end surface of the sprocket body 2 and the second bearing seat 3 are respectively provided with a labyrinth seal chamber 21 which is matched with the labyrinth seal teeth 19; the connecting end face of the sprocket body 2 and the first bearing seat 1 and the connecting end face of the sprocket body 2 and the second bearing seat 3 are respectively provided with an oil baffle disc 22 which is matched with the first oil receiving groove 12 and the second oil receiving groove 13, and the oil baffle disc 22 is inclined outwards away from the central axis. The first bearing seat 1 and the second bearing seat 3 are fixedly connected with a machine head frame 23, the machine head frame 23 is fixedly connected with a connecting pad frame 24, and the connecting pad frame 24 is fixedly connected with a speed reducer. A distance sleeve 27 is arranged between the inner ring of the bearing 5 and the sprocket body 2, and the distance sleeve 27 is respectively in contact connection with the inner ring of the bearing 5, the sprocket body 2 and the shaft 4; the right side of the right bearing 5 is provided with a first sealing ring 28, and the first sealing ring 28 is fixed on the shaft 4 through a retainer ring 29; the first sealing ring 28 is respectively in contact connection with the inner ring of the right bearing 5, the shaft 4, the through cover 10 and the check ring 29, and the check ring 29 is nested on the shaft 4; a second sealing ring 30 is arranged between the outer ring of the left bearing 5 and the end cover 8, and a second sealing ring 30 is arranged between the outer ring of the right bearing 5 and the through cover 10; two chain wheel bodies 2 are symmetrically arranged, the chain wheels are of split structures, and a spacing ring 33 is arranged between the two chain wheels; the end cover 8, the spacing ring 33, the bearing 5, the transparent cover 10 and the plug 31 are sleeved with O-shaped rings; the transparent cover 10 is provided with an inlet oil seal 35. The floating oil seal belongs to a dynamic mechanical sealing mode, and generally consists of a floating ring made of an iron alloy material and a matched nitrile rubber O-shaped sealing ring, wherein the floating rings are used in pairs, one of the floating rings rotates along with a rotating part, and the other floating ring is relatively static. The O-shaped sealing ring is deformed after being axially compressed to generate a pressing force on the sealing end face of the floating ring, so that a good sealing effect is achieved.
As shown in fig. 9-10, the oil outlet of the gear pump 9 is communicated with the oil return pipe 14, the oil return pipe 14 is communicated with the oil tank, the oil inlet of the gear pump 9 is communicated with the outlet of the one-way valve group 15, the inlet of the one-way valve group 15 is respectively communicated with the first oil suction pipe 16, the second oil suction pipe 17 and the third oil suction pipe 18, the other end of the first oil suction pipe 16 penetrates through the end cover 8 and is communicated with the oil tank, the second oil suction pipe 17 is communicated with the first oil receiving groove 12, and the third oil suction pipe 18 is communicated with the second oil receiving groove 13. The gear pump 9 is arranged outside the frame 23.
As shown in fig. 11, the pressing cover 11 is fixedly connected with a large gear 25; the end cover 8 is provided with a gear shaft 26 in a penetrating manner, one end of the gear shaft 26 is of a hollow structure, the outside of the gear shaft 26 is rotatably connected with the end cover 8 through a gear shaft bearing 34, and the other end of the gear shaft is meshed with the large gear 25 through a gear. Gear shaft bearing model number NU1006. The large gear 25 is located on the central axis of the gland 11. The gear pump 9 is inserted into one hollow end of the gear shaft 26, and is fixedly connected with the gear shaft 26.
In the embodiment, when the scraper conveyor is implemented, the gear pump 9 is connected with the shaft 4, the rotation of the chain wheel shaft provides power for the gear pump 9, the rotation speed of the chain wheel assembly in the scraper conveyor is generally 40-70 revolutions per minute, and the rotation speed is in direct proportion to the suction force of the gear pump 9, so that a speed-increasing gear is formed by arranging the large gear 25 and the gear shaft 26 between the gear pump 9 and the shaft 4, and the speed ratio is about 1:10, so that the scraper conveyor has larger suction force.
When the sprocket assembly starts to be used or oil leakage does not occur, the oil inlet hole at the end cover 8 is connected with the one-way valve group 15 at the oil inlet hole of the gear pump 9 through the first oil suction pipe 16, and returns into the oil tank of the sprocket assembly through the oil return pipe 14, so that circulation is formed, self lubrication of the gear pump 9 can be ensured when oil leakage does not occur, and the oil temperature can be reduced through circulation, and lubrication of the bearing 5 can be improved. The one-way valve group 15 at the oil inlet of the gear pump 9 can ensure that the oil entering the pump body does not return to the oil suction pipe.
The sprocket body 2 is provided with a windage tray 22 along the circumference outside the floating seal chamber at one side, the first bearing seat 1 is provided with a first oil receiving groove 12 along the circumference at the corresponding position of one side contacted with the sprocket body 2, and the windage tray 22 is meshed with the first oil receiving groove 12 during assembly. When the first floating oil seal 6 is in oil leakage, the leaked oil is thrown up under the action of centrifugal force and is thrown onto the oil baffle disc 22 to flow into the first oil receiving groove 12 of the bearing seat along the oil baffle disc 22, the first oil receiving groove 12 is communicated with the second oil suction pipe 17, and returns into the gear pump 9 through the second oil suction pipe 17; in the same way, the second floating oil seal 7 leaks oil, and the leaked oil returns to the gear pump 9 along the third oil suction pipe 18 and returns to the oil tank through the oil return pipe 14.
The joint of the bearing seat and the chain wheel body 2 adopts a labyrinth structure to prevent dust, the labyrinth is filled with grease through the grease filling hole 20, and when the labyrinth is filled with grease, the labyrinth is required to be filled with grease when the chain wheel body rotates, so that the labyrinth groove can be fully filled with the grease. The adoption of the labyrinth and butter sealing mode can effectively prevent coal dust from entering, and the large-inclination design is adopted at the outer side of the labyrinth, so that the phenomenon that coal blocks enter to be blocked can be avoided, and the coal blocks can fall out along with the rotation of the chain wheel after entering the labyrinth.
The preferred embodiments of the present invention have been described in detail, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention, and the various changes are included in the scope of the present invention.
Claims (8)
1. A sprocket assembly for a scraper conveyor, comprising: the novel chain wheel comprises a first bearing seat (1), a chain wheel body (2), a second bearing seat (3) and a shaft (4), wherein the first bearing seat (1), the chain wheel body (2) and the second bearing seat (3) are sequentially arranged on the shaft (4), the first bearing seat (1) is rotationally connected to the shaft (4) through a bearing, the chain wheel body (2) is fixed to the shaft (4), and the second bearing seat (3) is rotationally connected to the shaft (4) through another bearing; a first floating oil seal (6) is arranged between the first bearing seat (1) and the chain wheel body (2), and a first oil receiving groove (12) is formed in the radial outer side of the first floating oil seal (6) in the first bearing seat (1); a second floating oil seal (7) is arranged between the second bearing seat (3) and the chain wheel body (2), and a second oil receiving groove (13) is formed in the radial outer side of the second floating oil seal (7) on the second bearing seat (3);
an end cover (8) is fixedly connected to one side, far away from the sprocket body (2), of the first bearing seat (1), and a gear pump (9) is arranged on the end cover (8); a transparent cover (10) is arranged on one side, away from the sprocket body (2), of the second bearing (3); one end of the shaft (4) is arranged in the first bearing seat (1), one end, close to the end cover (8), of the shaft (4) is fixedly connected with a gland (11), the other end of the shaft (4) extends out of the transparent cover (10), and one end, far away from the transparent cover (10), of the shaft (4) is connected with the output end of the speed reducer;
the oil outlet of the gear pump (9) is communicated with the oil return pipe (14), the oil return pipe (14) is communicated with the oil tank, the oil inlet of the gear pump (9) is communicated with the outlet of the one-way valve group (15), the inlet of the one-way valve group (15) is respectively communicated with the first oil suction pipe (16), the second oil suction pipe (17) and the third oil suction pipe (18), the other end of the first oil suction pipe (16) is communicated with the oil tank, the second oil suction pipe (17) is communicated with the first oil receiving groove (12), and the third oil suction pipe (18) is communicated with the second oil receiving groove (13);
the chain wheel body (2) and the first bearing seat (1) are connected with each other, and the chain wheel body (2) and the second bearing seat (3) are connected with each other, and are respectively provided with a windage tray (22) which is adaptive to the first oil receiving groove (12) and the second oil receiving groove (13), and the windage tray (22) is inclined outwards away from the central axis;
a large gear (25) is fixedly connected to the gland (11); the end cover (8) is penetrated and provided with a gear shaft (26), one end of the gear shaft (26) is of a hollow structure, the outside of the gear shaft is rotationally connected with the end cover (8), and the other end of the gear shaft is meshed with the large gear (25) through a gear.
2. A sprocket assembly for a scraper conveyor as set forth in claim 1 wherein: the large gear (25) is positioned on the central axis of the gland (11).
3. A sprocket assembly for a scraper conveyor as set forth in claim 1 wherein: the driving shaft of the gear pump (9) is inserted into one hollow end of the gear shaft (26) and is fixedly connected with the gear shaft (26).
4. A sprocket assembly for a scraper conveyor as set forth in claim 1 wherein: the first bearing seat (1), the second bearing seat (3) and the machine head frame (23) are fixedly connected, the machine head frame (23) is fixedly connected with the connecting pad frame (24), and the connecting pad frame (24) is fixedly connected with the speed reducer.
5. A sprocket assembly for a scraper conveyor as in claim 1 or 4, wherein: the gear pump (9) is arranged outside the machine head frame (23).
6. A sprocket assembly for a scraper conveyor as set forth in claim 1 wherein: labyrinth seal teeth (19) are arranged on the end face, connected with the sprocket body (2), of the first bearing seat (1) and the end face, connected with the sprocket body (2), of the second bearing seat (3).
7. A sprocket assembly for a scraper conveyor as set forth in claim 6 wherein: the end faces of the sprocket body (2) connected with the first bearing seat (1) and the end faces of the sprocket body (2) connected with the second bearing seat (3) are respectively provided with a labyrinth sealing chamber (21) which is matched with the labyrinth sealing teeth (19).
8. A sprocket assembly for a scraper conveyor as set forth in claim 6 wherein: the novel labyrinth seal structure is characterized in that a grease filling hole (20) is formed in one end, close to the labyrinth seal teeth (19), of the first bearing seat (1) and the second bearing seat (3), the section of the grease filling hole (20) is in an L-shaped structure, one end of the grease filling hole (20) is communicated with the top surface of the bearing seat, and the other end of the grease filling hole is communicated with the side surface of the bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951540.6A CN108861343B (en) | 2018-08-21 | 2018-08-21 | Sprocket device of scraper conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810951540.6A CN108861343B (en) | 2018-08-21 | 2018-08-21 | Sprocket device of scraper conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108861343A CN108861343A (en) | 2018-11-23 |
| CN108861343B true CN108861343B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810951540.6A Active CN108861343B (en) | 2018-08-21 | 2018-08-21 | Sprocket device of scraper conveyor |
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| CN (1) | CN108861343B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294287A (en) * | 2019-07-09 | 2019-10-01 | 宁夏天地奔牛实业集团有限公司 | A kind of non-maintaining or low-maintenance self-lubricating sprocket shaft group |
| CN110255080A (en) * | 2019-07-17 | 2019-09-20 | 山西煤矿机械制造股份有限公司 | Distance-limiting type chain wheel assembly |
| CN113844840B (en) * | 2021-08-17 | 2023-08-01 | 宁夏天地奔牛实业集团有限公司 | Maintenance-free self-lubricating sprocket shaft group |
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| CN202163832U (en) * | 2011-06-28 | 2012-03-14 | 浙江精基机电有限公司 | Chain wheel shaft component of scraper conveyor |
| CN102887334A (en) * | 2012-10-25 | 2013-01-23 | 连云港天明装备有限公司 | Driving device for machine head of scraper conveyor for coal mine |
| CN107902335A (en) * | 2017-12-12 | 2018-04-13 | 三重型装备有限公司 | Drag conveyor driving device and drag conveyor |
| CN209321783U (en) * | 2018-08-21 | 2019-08-30 | 山西煤矿机械制造股份有限公司 | A kind of chain wheel device of drag conveyor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009003623A1 (en) * | 2009-03-16 | 2010-09-23 | Bucyrus Europe Gmbh | Sprocket assembly for mining equipment |
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2018
- 2018-08-21 CN CN201810951540.6A patent/CN108861343B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864241Y (en) * | 2004-08-23 | 2007-01-31 | Dbt有限公司 | Chain wheel for driving or rotating position |
| CN202030282U (en) * | 2011-04-11 | 2011-11-09 | 淮南市江淮机械电子设备制造有限公司 | Chain wheel shaft group |
| CN202163832U (en) * | 2011-06-28 | 2012-03-14 | 浙江精基机电有限公司 | Chain wheel shaft component of scraper conveyor |
| CN102887334A (en) * | 2012-10-25 | 2013-01-23 | 连云港天明装备有限公司 | Driving device for machine head of scraper conveyor for coal mine |
| CN107902335A (en) * | 2017-12-12 | 2018-04-13 | 三重型装备有限公司 | Drag conveyor driving device and drag conveyor |
| CN209321783U (en) * | 2018-08-21 | 2019-08-30 | 山西煤矿机械制造股份有限公司 | A kind of chain wheel device of drag conveyor |
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| CN108861343A (en) | 2018-11-23 |
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