CN113262709A - Online restoration structure of dust remover biax humidification mixer - Google Patents
Online restoration structure of dust remover biax humidification mixer Download PDFInfo
- Publication number
- CN113262709A CN113262709A CN202110471883.4A CN202110471883A CN113262709A CN 113262709 A CN113262709 A CN 113262709A CN 202110471883 A CN202110471883 A CN 202110471883A CN 113262709 A CN113262709 A CN 113262709A
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- shaft
- blade
- driving shaft
- maintenance
- hole
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- 239000000428 dust Substances 0.000 title claims abstract description 22
- 238000012423 maintenance Methods 0.000 claims abstract description 37
- 229910000617 Mangalloy Inorganic materials 0.000 claims abstract description 6
- 230000008439 repair process Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 5
- 241001391944 Commicarpus scandens Species 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The utility model provides a structure is restoreed on line of dust remover biax humidification mixer, belongs to dust remover mixer equipment technical field for maintain biax humidification mixer. The technical scheme is as follows: an adjusting top plate is vertically welded on the upper surface of the box body bottom plate on the outer side of the rear end of the driven shaft, a screw hole is formed in the adjusting top plate, and an adjusting screw is screwed in the screw hole; when the driving shaft is broken at the position easy to break, a dummy shaft used for repairing is matched, one end of the dummy shaft is matched with a shaft device and a bearing, the end face of the other end of the dummy shaft is of a sleeve structure, and the maintenance end of the driving shaft is embedded in an end face sleeve of the dummy shaft and fixedly connected with the end face sleeve; the maintenance blade is additionally arranged after the blade is worn, the blade is an arc manganese steel plate, the lower end of the maintenance blade is welded at the upper end of the worn blade, and the cutter head is arranged on the maintenance blade through a fixing bolt. The invention has simple structure and convenient use, can quickly process the problems of blade jamming, driving shaft breaking and blade abrasion caused by gear abrasion or gear top tooth and offside, greatly saves the maintenance time and reduces the maintenance cost.
Description
Technical Field
The invention relates to a double-shaft humidifying stirrer of a dust remover ash discharging system, belonging to the technical field of stirrer equipment of dust removers.
Background
At present, a double-shaft humidifying stirrer is widely applied to a dry type dust and ash removing system with small density and fine particles and a blast furnace dust purifying, collecting and discharging system in a steel and iron combined enterprise. The double-shaft mixer has the advantages of compact structure, small occupied area, stable transmission, low noise, uniform mixing and reliable operation, is provided with a humidification water spraying system, can uniformly humidify and stir dry dust entering the humidification mixer through the dust discharging valve, and can be transported to a centralized mixing field for recycling through an automobile, thereby effectively avoiding dust flying in loading and transportation processes and achieving the requirement of environmental protection outward transportation. However, in use, the prior double-shaft mixer is easy to have the following three faults which are not easy to treat after a certain using time:
(1) a pair of straight-tooth gears connected by a double shaft are worn, gaps between tooth sides and tooth tops are increased, when material loads in a box body are large, the gear top teeth which are originally and correctly meshed on a driving shaft and a driven shaft are often caused, or relative slippage and dislocation occur, after the relative slippage and dislocation occur, the line position relation of cutter bits or blades on different shafts is changed, interference is generated, and the rotation cannot be realized. The method for processing the faults comprises the steps of clearing accumulated materials in a box body, loosening a split bolt in a split bearing seat on the gear side of a driving shaft, a sealing baffle between a driving shaft on the gear side and the box body, taking out an upper gland, using a driven gear as a support, prying the driving gear a little by a little, and adjusting back an offside gear, so that blades and a cutter head in the box body recover correct mutual noninterference and blockage-free position relation, further replacing a pair of worn gears, and the method is complicated in processing process and long in time.
(2) The driving shaft is easy to generate fatigue fracture at two positions, one position is a position for assembling a shaft shoulder of the coupler, the other position is a position for assembling a shaft shoulder of the gear, and the two positions are positions for increasing and changing the transmission torque. The existing treatment method is that any break occurs in the use process, and the normal use of the equipment is generally recovered by integrally replacing a new humidifier, but the rest parts of the humidifier system are relatively good, and the integral replacement of the humidifier causes waste to a certain extent.
(3) After a cutter head fixed on the upper part of the blade in the box body is abraded, the cutter head cannot be replaced in time, so that the blade is uniformly abraded by about 30-40 mm downwards along the height direction, the ash conveying is not smooth, the dry ash humidifying effect is poor, the raised dust is serious, the thickness of the blade is still qualified, and the welding of the lower part of the blade and the surface of the rotating shaft is still firm. The processing method generally comprises the steps of cutting off worn blades, welding new blades, and installing and fixing the upper cutter head, so that time and labor are wasted, and the cost of spare parts is wasted to a certain extent.
In view of the above problem of the conventional dual-shaft humidifier, it is necessary to improve the conventional dual-shaft humidifier to achieve the purpose of quick and convenient repair.
Disclosure of Invention
The invention aims to solve the technical problem of providing an online repair structure of a double-shaft humidifying stirrer of a dust remover, which can rapidly solve the problems of gear abrasion or blade jamming, driving shaft breakage and blade abrasion caused by gear top tooth and offside, save spare part cost and improve equipment operation rate.
The technical scheme for solving the technical problems is as follows:
an on-line repair structure of a double-shaft humidifying stirrer of a dust remover, wherein a driving shaft and a driven shaft of the double-shaft humidifying stirrer are arranged in a box body in parallel, a motor, a speed reducer and a coupling are connected with the front end of the driving shaft, straight-tooth gears are respectively arranged at the rear ends of the driving shaft and the driven shaft, and the straight-tooth gears at the rear ends of the driving shaft and the driven shaft are meshed with each other. The mounting screw hole corresponding to the driving shaft bearing seat on the base is a round hole.
Above-mentioned online restoration structure of dust remover biax humidification mixer, the driving shaft is when the position rupture of easily breaking, is furnished with the dummy shaft of restoreing the use, and the intermediate part of dummy shaft is the same with the driving shaft, and the one end of dummy shaft is connected with the shaft coupling, and the intermediate part of dummy shaft and the bearing cooperation installation of driving shaft, the terminal surface of the other end of dummy shaft are sleeve structure, telescopic hole diameter and the external diameter phase-match of driving shaft, and the maintenance end of driving shaft inlays fixed connection in the terminal surface sleeve hole of dummy shaft.
The online repair structure of the double-shaft humidifying stirrer of the dust remover is characterized in that the maintenance blade is additionally arranged after the blade is worn, the maintenance blade is an arc-shaped manganese steel plate, the length and the width of the maintenance blade are matched with those of the wear blade, the lower end of the maintenance blade is welded at the upper end of the wear blade, a mounting hole is formed in the maintenance blade, the mounting hole is matched with a bolt hole of a tool bit, and the tool bit is installed on the maintenance blade through a fixing bolt.
The invention has the beneficial effects that:
according to the invention, the adjusting top plate and the adjusting screw rod are arranged on the upper surface of the box body bottom plate at the outer side of the rear end of the driven shaft, when the gap between the tooth side and the tooth top is enlarged, the gear is pushed up or over-positioned, the foundation bolts of the driven shaft bearing seat in the long hole of the base are loosened, the foundation bolts of the driving shaft bearing seat in the round hole of the base are not loosened, the driven shaft is easily moved outwards by the aid of a crowbar, the over-positioned gear is adjusted, the adjusting top plate and the adjusting screw rod are utilized to move the driven shaft forwards, the gap between the adjusting gears is proper until the gap is proper, and the operation is convenient; the dummy shaft can replace a broken part of the driving shaft, and the service performance of the driving shaft is recovered; the maintenance blade can be welded to the upper part of the worn blade, and then the cutter head is fixed, so that the blade and the cutter head can be repaired and replaced in time.
The invention has simple structure and convenient use, can quickly process the problems of blade jamming, driving shaft breaking and blade abrasion caused by gear abrasion or gear top tooth and offside, greatly saves maintenance time, improves maintenance efficiency, saves spare parts, reduces maintenance cost and can effectively improve the operation rate of equipment.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a partial schematic view of the base of the active and passive shaft co-axial bearing housings;
FIG. 4 is a schematic view of a dummy shaft;
FIG. 5 is a schematic view of the mounting of the dummy shaft;
FIG. 6 is a schematic view of a service blade;
fig. 7 is a side view of fig. 6.
The figures are labeled as follows: the device comprises a box body 1, a motor and speed reducer 2, a coupler 3, a driving shaft fracture-prone part 4, a cutting position 5, a sealing baffle 6, an observation hole cover plate 7, a water beating device 8, blades 9, a cutter head 10, a feed inlet 11, a driving shaft 12, a straight-tooth gear 13, an adjusting screw 14, an adjusting top plate 15, a bearing seat 16, a driven shaft 17, a base 18, a long hole 19, a round hole 22, a dummy shaft 23, a wear blade 24, a maintenance blade 25, a fixing bolt 26, a sleeve 27 and a bearing 28.
Detailed Description
The invention comprises a box body 1, a motor and speed reducer 2, a coupling 3, a driving shaft 12, a driven shaft 17, a bearing seat 16, a bearing 28, blades 9, a cutter head 10, a pair of meshed straight-tooth gears 13 and a sealing baffle 6.
The figure shows that a driving shaft 12 and a driven shaft 17 are installed in parallel in a box body 1 of the humidifier, a sealing baffle 6 is arranged at the end part of the box body 1, two bearing seats 16 are respectively arranged at two ends of the box body 1, the bearing seats 16 are split four-stud bearing seats, and bearings 28 are installed in the bearing seats. The motor and the speed reducer 2, the coupling 3 are connected with the front end of the driving shaft 12, the rear ends of the driving shaft 12 and the driven shaft 17 are respectively provided with a straight-tooth gear 13, and the straight-tooth gears 13 at the rear ends of the driving shaft 12 and the driven shaft 17 are meshed with each other. The lower parts of the blades 9 are welded on the driving shaft 12 and the driven shaft 17, the cutter head 10 is fixed on the upper parts of the blades 9 through the fixing bolt 26, after the blades 9 and the cutter head 10 on the driving shaft 12 and the driven shaft 17 are connected into a whole, the motion trail is spiral, the respective slide relation is determined through the meshed straight-tooth gears 13, mutual noninterference during rotation is realized, and materials are pushed forwards and conveyed.
The figure shows that the maintenance structure adopted by the invention for the gear top teeth and relative slippage dislocation caused by the abrasion of the straight-tooth gear 13 and the increase of the clearance between the tooth side and the tooth top, and the change of the row position relation of the cutter head 10 or the blade 9 is that an adjusting top plate 15 and an adjusting screw 14 are added on the upper surface of the bottom plate of the box body 1 at the outer side of the rear end of a driven shaft 17, the adjusting top plate 15 is vertically welded on the bottom plate of the box body 1, the plate surface of the adjusting top plate 15 is parallel and opposite to the side surface of a base 18 of a bearing seat 16 of the driven shaft 17, a screw hole is arranged on the adjusting top plate 15, the adjusting screw 14 is screwed in the screw hole, the adjusting screw 14 is vertically opposite to the side surface of the base 18 of the bearing seat 16 of the driven shaft 17, and the front end of the adjusting screw 14 is in surface contact with the side surface of the base 18.
The adjusting range of the adjusting screw 14 is 0-30 mm. The adjusting screw 14 can adjust the position of the driven shaft 17 bearing seat 16 close to the driving shaft 12 through the long hole 19, adjust the position of the driven shaft 17 bearing seat 16 far away from the driving shaft 12, retreat the adjusting screw 12, pry the driven shaft 17 bearing seat by using the driving shaft 12 bearing seat as a fulcrum by using a pry bar, adjust the offside gear, adjust the gap of the meshed straight-tooth gear 13 until the gap is proper, and compensate the gap of the abraded straight-tooth gear 13.
The figure shows that the repair structure for the fatigue fracture damage of the driving shaft 12 of the invention is that the driving shaft 12 is provided with a dummy shaft 23 used for repairing, the middle part of the dummy shaft 23 is the same as the driving shaft 12, one end of the dummy shaft 23 is connected with the coupler 3, the middle part of the dummy shaft 23 is matched and installed with a bearing of the driving shaft 12, the end face of the other end of the dummy shaft 23 is of a sleeve structure, the diameter of an inner hole of a sleeve 27 is matched with the outer diameter of the driving shaft 12, and the repair end of the driving shaft 12 is embedded in the inner hole of the sleeve 27 of the end face of the dummy shaft 23 and fixedly connected.
The maintenance blade 25 is additionally arranged after the blade 9 is worn, the maintenance blade 25 is an arc manganese steel plate, the length and the width of the maintenance blade 25 are matched with those of the abrasion blade 24, the lower end of the maintenance blade 25 is welded at the upper end of the abrasion blade 24, the maintenance blade 25 is provided with a mounting hole, the mounting hole is matched with a bolt hole of the cutter head 10, and the cutter head 10 is arranged on the maintenance blade 25 through a fixing bolt 26.
The using method of the invention is as follows:
a. after the humidifier is used for a certain period, the two straight-tooth gears 13 are abraded, gaps between tooth sides and tooth tops are enlarged, the cutter head 10 in the box body 1 falls off or is abraded and cannot be repaired and replaced in time, the blades 9 are further abraded, ash accumulation in the box body 1 is increased, ash conveying is not smooth, load is increased, the straight-tooth gears 13 can slip and shift, the blades 9 and the cutter head 10 on the driving shaft 12 and the driven shaft 17 in the box body 1 are stuck and do not rotate, and maintenance is needed.
Firstly, cleaning up dust accumulated in a box body 1, detaching an end sealing baffle 6, loosening foundation bolts in long holes 19 on bases 18 of bearing seats 16 at two ends of a driven shaft 17, retreating to adjust a lead screw 12, prying the bearing seats of the driven shaft 17 by using a prying bar with the bearing seats of the driving shaft 12 as a fulcrum, adjusting the bearing seats of the bearing seats 16 of the driven shaft 17 far away from the driving shaft 12 to separate a pair of meshed straight-tooth gears 13, prying the driven gear by using the prying bar with the gear on the driven shaft as the fulcrum to adjust blades and cutter bits on the driving shaft and the driven shaft in the box body back to a correct line relationship, then forwardly rotating an adjusting lead screw 14 to adjust the gaps of the meshed straight-tooth gears 13 until the gaps are proper, compensating the gaps of the worn straight-tooth gears 13, and basically restoring the driven shaft 17 to the original position to fasten the foundation bolts in the long holes 19 on the bases at two ends of the driven shaft 17.
b. When the driving shaft 12 is in fatigue fracture, such as fracture at the root of a coupler or the root of a gear, the driving shaft 12 needs to be replaced and maintained.
Firstly, cleaning up dust accumulated in a box body 1, cutting off a driving shaft 12 at a cutting position 5 of a broken part of the driving shaft 12, reserving the residual driving shaft part on the inner side of the box body 1, removing the cut part on the broken side, configuring a dummy shaft 23 according to a bearing seat of the driving shaft 12, assembling the dummy shaft 23, the bearing seat of the driving shaft 12 and a bearing 28 into a whole, then installing the bearing seat of the driving shaft 12, driving the dummy shaft 23 to be in place by the bearing seat, sleeving a sleeve 27 at the front end of the dummy shaft 23 and a cylindrical surface at the front end of the residual driving shaft 12, fastening foundation bolts of the bearing seats after adjusting the peripheral clearance of the sleeving surface and the straightness between the two shafts, and symmetrically welding the foundation bolts along the outer end surface of the sleeve 27 and the surface of the dummy shaft 23 to form continuous welding points.
c. When the cutter head 10 is detached or worn, causing the upper portion of the blade 9 to be worn down to a certain height, the blade 9 and the cutter head 10 are repaired.
Firstly, cleaning up the adhesive dust in the box body 1 and on the worn blades 24, measuring the worn height of the worn blades 24, using an unmounted curve edge of the cutter head 10, a box ruler and a stone pencil as tools, drawing maintenance blades 25 which are made of manganese steel plates with slightly thin thickness, equal height and similar shapes on the manganese steel plates, cutting the maintenance blades 25 by gas welding, centering the maintenance blades 25 on the upper parts of the worn blades 24, continuously welding the two sides, pasting the cutter head 10 on the maintenance blades 25, drawing marks by using a bolt hole extending into the cutter head 10 by using the stone pencil, cutting the mark positions into through holes by gas welding, and penetrating the fixing bolts 26 to fix the cutter head 10.
One embodiment of the invention is as follows:
the diameter of the screw 14 is adjusted to be 30mm, and the length is 150 mm;
the length of the top plate 15 is adjusted to be 100mm, the width is adjusted to be 80mm, and the thickness is adjusted to be 16 mm; the diameter of the screw hole is 30 mm;
the length of the long hole 19 of the base 18 of the bearing seat 16 of the driven shaft 17 is 60mm, and the width is 26 mm;
the inner bore diameter of the sleeve 27 of the dummy shaft 23 is 80.3mm and the inner bore depth is 25 mm.
Claims (3)
1. The utility model provides a structure is restoreed on line of dust remover biax humidification mixer, driving shaft (12) and driven shaft (17) parallel mount of biax humidification mixer are in box (1), motor and speed reducer (2), shaft coupling (3) are connected with the front end of driving shaft (12), straight-tooth gear (13) are installed respectively to the rear end of driving shaft (12) and driven shaft (17), straight-tooth gear (13) of driving shaft (12) and driven shaft (17) rear end mesh mutually, its characterized in that: an adjusting top plate (15) and an adjusting screw rod (14) are arranged on the upper surface of a bottom plate of the box body (1) at the outer side of the rear end of the driven shaft (17), the adjusting top plate (15) is vertically welded on the bottom plate of the box body (1), the plate surface of the adjusting top plate (15) is parallel and opposite to the side surface of a base (18) of a bearing seat (16) of the driven shaft (17), a screw rod hole is arranged on the adjusting top plate (15), the adjusting screw rod (14) is screwed in the screw rod hole, the adjusting screw rod (14) is vertically opposite to the side face of a base (18) of a bearing seat (16) of a driven shaft (17), the front end of the adjusting screw rod (14) is in surface contact with the side face of the base (18), a bearing seat mounting screw hole in the base (18) is a long hole (19), the length direction of the long hole (19) is vertical to the length direction of the driven shaft (17), and a mounting screw hole in the base (18) corresponding to the bearing seat of the driving shaft (12) is a round hole (22).
2. The on-line repair structure of a double-shaft humidifying agitator of a dust collector of claim 1, characterized in that: when the easily-broken part (4) of the driving shaft (12) is broken, a dummy shaft (23) used for repairing is arranged, the middle part of the dummy shaft (23) is the same as the driving shaft (12), one end of the dummy shaft (23) is connected with the coupler (3), the middle part of the dummy shaft (23) is installed in a matching way with a bearing (28) of the driving shaft (12), the end face of the other end of the dummy shaft (23) is of a sleeve structure, the diameter of an inner hole of the sleeve (27) is matched with the outer diameter of the driving shaft (12), and a maintenance end of the driving shaft (12) is embedded in the inner hole of the sleeve (27) on the end face of the dummy shaft (23.
3. The on-line repair structure of a double-shaft humidifying agitator of a dust collector of claim 1, characterized in that: install maintenance blade (25) additional after blade (9) wearing and tearing, maintenance blade (25) are the arc manganese steel sheet, the length and the width phase-match of length and width and wearing and tearing blade (24) of maintenance blade (25), the lower extreme welding of maintenance blade (25) is in wearing and tearing blade (24) upper end, there is the mounting hole on maintenance blade (25), the bolt hole phase-match of mounting hole and tool bit (10), tool bit (10) are installed on maintenance blade (24) through fixing bolt (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471883.4A CN113262709A (en) | 2021-04-29 | 2021-04-29 | Online restoration structure of dust remover biax humidification mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110471883.4A CN113262709A (en) | 2021-04-29 | 2021-04-29 | Online restoration structure of dust remover biax humidification mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113262709A true CN113262709A (en) | 2021-08-17 |
Family
ID=77229753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110471883.4A Pending CN113262709A (en) | 2021-04-29 | 2021-04-29 | Online restoration structure of dust remover biax humidification mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113262709A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036074A (en) * | 1975-10-01 | 1977-07-19 | Bodnar Ernest R | Anti-backlash gear system |
| CN201783274U (en) * | 2010-06-28 | 2011-04-06 | 芜湖华洁环保设备有限公司 | Double-shaft dust humidifier |
| CN205774286U (en) * | 2016-05-23 | 2016-12-07 | 唐山钢铁集团有限责任公司 | A kind of online junction structure of fire door servicer off-axis |
| CN108326510A (en) * | 2018-03-02 | 2018-07-27 | 河钢股份有限公司承德分公司 | Centrifugal blower fan blade wheel repairs structure and restorative procedure |
| CN108592845A (en) * | 2018-04-25 | 2018-09-28 | 河北工业大学 | A kind of adjustable experimental provision of gear tooth side gap |
| CN212985998U (en) * | 2020-08-25 | 2021-04-16 | 郑州机械研究所有限公司 | Gear transmission mechanism with adjustable gear clearance |
-
2021
- 2021-04-29 CN CN202110471883.4A patent/CN113262709A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036074A (en) * | 1975-10-01 | 1977-07-19 | Bodnar Ernest R | Anti-backlash gear system |
| CN201783274U (en) * | 2010-06-28 | 2011-04-06 | 芜湖华洁环保设备有限公司 | Double-shaft dust humidifier |
| CN205774286U (en) * | 2016-05-23 | 2016-12-07 | 唐山钢铁集团有限责任公司 | A kind of online junction structure of fire door servicer off-axis |
| CN108326510A (en) * | 2018-03-02 | 2018-07-27 | 河钢股份有限公司承德分公司 | Centrifugal blower fan blade wheel repairs structure and restorative procedure |
| CN108592845A (en) * | 2018-04-25 | 2018-09-28 | 河北工业大学 | A kind of adjustable experimental provision of gear tooth side gap |
| CN212985998U (en) * | 2020-08-25 | 2021-04-16 | 郑州机械研究所有限公司 | Gear transmission mechanism with adjustable gear clearance |
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Application publication date: 20210817 |