CN104214278B - The lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear) and a kind of vertical type speed reducer (change gear) - Google Patents
The lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear) and a kind of vertical type speed reducer (change gear) Download PDFInfo
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- CN104214278B CN104214278B CN201410430140.2A CN201410430140A CN104214278B CN 104214278 B CN104214278 B CN 104214278B CN 201410430140 A CN201410430140 A CN 201410430140A CN 104214278 B CN104214278 B CN 104214278B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H1/222—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with non-parallel axes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
Abstract
The present invention relates to reductor technical field, disclose the lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear), including casing, one-level bevel gear shaft, one-level bevel gear shaft is connected with casing by two bearings arranged up and down；It is cased with end cap in the outside of one-level bevel gear shaft below the bearing of lower section, is provided with oil sealing in end cap, more than bearing is above epicoele, be cavity of resorption below end cap；Being additionally provided with gear oil internal ring between following bearing and end cap, the outer of gear oil internal ring downwardly extends out flange；End cap be arranged above with cannelure, the flange of gear oil internal ring gos deep in the cannelure of end cap, and leaves gap between flange and cannelure and formed around labyrinth type oil circuit；The bevel gear of one-level bevel gear shaft upper end is engaged with one-level bevel gear wheel, and one-level bevel gear wheel is fixed on horizontally disposed large bevel gear shaft, and large bevel gear shaft is socketed with disc.The present invention solves sealing and the lubrication problem of heavy-load vertical reductor, for the original creation technology of this institute.
Description
Technical field
The present invention relates to reductor technical field, more particularly to the lubricated type primary speed-down structure of vertical type speed reducer (change gear) and a kind of vertical type speed reducer (change gear) of a kind of band lubrication system.
Background technology
Roller-way is the capital equipment that mill transports rolled piece, is to use most equipment in mill.Rolled piece turnover heating furnace, is transported to the work such as finishing procedure and is completed by roller-way on milling train after back and forth rolling and roll.
Roller-way mainly by guide plate, defend plate and several rollers form, and driven by multiple decelerating through motor units.Roller-way is in running order in the whole rolling cycle, and its work characteristics is that startup is frequent, temperature is higher and bears various impact load, and working condition is the most severe.Therefore to extend the service life of motor, it should try one's best the installation site of motor away from roller-way center, reasonable scheme is to use vertical type speed reducer (change gear).But owing to site environment is severe, needing high temperature resistant, the vertical type speed reducer (change gear) of heavy load, this type of vertical type speed reducer (change gear) needs to use dilute oil lubricating, and does not also have the vertical type speed reducer (change gear) of reasonable solution lubrication problem in prior art.
Summary of the invention
The present invention is for overcoming above-mentioned deficiency of the prior art, it is provided that the lubricated type primary speed-down structure of the vertical type speed reducer (change gear) of a kind of band lubrication system and a kind of vertical type speed reducer (change gear).
The present invention is achieved through the following technical solutions above-mentioned purpose.
The lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear), including casing, the lower vertical in casing is provided with one-level bevel gear shaft, and one-level bevel gear shaft is connected with casing by two bearings arranged up and down；Being positioned at below the bearing of lower section and be cased with end cap in the outside of one-level bevel gear shaft, end cap is fixed in casing, is provided with oil seal groove in end cap, oil sealing it is provided with in oil seal groove, casing is divided into epicoele and cavity of resorption by two bearings, end cap, oil sealings, more than bearing is above epicoele, is cavity of resorption below end cap；Being additionally provided with gear oil internal ring between following bearing and end cap, gear oil internal ring for annular and is tightly sleeved on one-level bevel gear shaft, and the outer of gear oil internal ring downwardly extends out flange；End cap be arranged above with cannelure, the flange of gear oil internal ring gos deep in the cannelure of end cap, and leaves gap between flange and cannelure and form the labyrinth type oil circuit around flange outer, is seen as the U-shaped oil circuit around flange outer from section；The bevel gear of one-level bevel gear shaft upper end is engaged with one-level bevel gear wheel, and one-level bevel gear wheel is fixed on horizontally disposed large bevel gear shaft, and large bevel gear shaft is socketed with disc.
The purpose of this programme is the problem solving lubrication, but first has to the oil-tightening problem of solution machine.Therefore use two bearings, end cap, oil sealings that casing is divided into epicoele and cavity of resorption, more than the bearing of top it is epicoele, it it is cavity of resorption below end cap, epicoele is used for installing individual stage reduction mechanism, cavity of resorption, for installing the bindiny mechanism of one-level bevel gear shaft and motor output shaft, is cushion chamber between bearing and the end cap of top, and an one-level bevel gear shaft part is positioned in epicoele, a part is positioned at cushion chamber, and some is positioned in cavity of resorption.Machine oil pours in epicoele, and the bearing of top is that the first order blocks, and prevents machine oil dirty, but still has the bearing below the dirty entrance of part machine oil, makes the bearing of lower section be lubricated, simultaneously below bearing form the second level and block.But it is dirty to still suffer from part machine oil, below the bearing of lower section, therefore devise a labyrinth type oil circuit, form the third level and block, to slow down machine oil dropping velocity, prevent machine oil from directly impacting oil sealing, improve sealing effectiveness, extending the service life of oil sealing, oil sealing is that the fourth stage blocks.By the way of above level Four blocks, reach sealing effectiveness, prevent the machine oil in epicoele from flowing in cavity of resorption, because the machine oil in cavity of resorption can penetrate in motor, thus affect the normal operation of motor, also can shorten the service life of motor, it is also possible to can directly burn out motor.
After the oil-tightening Resolving probiems of machine, continue with the problem solving lubrication.This type of reductor is big due to load, so typically using the motor of high-power and high-speed, after primary speed-down, the rotating speed of large bevel gear shaft is the highest, this just provides enough rotating speeds to disc, can upwards be thrown to machine oil in individual stage reduction mechanism under the influence of centrifugal force be lubricated.After lubrication, machine oil can fall again, reaches the purpose repeatedly lubricated, and meanwhile, the machine oil of whereabouts can take away the heat in individual stage reduction mechanism, reaches certain cooling purpose, extends the service life of individual stage reduction mechanism.
Introduce a kind of vertical type speed reducer (change gear) the most again, use the lubricated type primary speed-down structure of above-mentioned vertical type speed reducer (change gear), above-mentioned large bevel gear shaft is provided with two grades of little gears, two grades of little gears are adjacent with one-level bevel gear wheel, and two grades of little gears are engaged with two grades of gear wheels, and two grades of gear wheels are fixed on tertiary gear axle, tertiary gear axle is horizontally set in casing, the gear of tertiary gear axle is engaged with three grades of gear wheels, and three grades of gear wheels are fixed on output shaft, and output shaft is horizontally set on casing；Above-mentioned disc is two, and two discs are positioned at one-level bevel gear wheel and the both sides of two grades of little gears.This type of vertical type speed reducer (change gear) is commonly used under the operating mode that output speed is slower, if using double reduction, individual stage reduction ratios is very big, can cause the insufficient strength of individual stage reduction structure；If using level Four slowing-down structure, the profile of reductor is relatively big, heavier mass, relatively costly；So reasonably step of reduction is three grades, speed reducing ratio, the centre-to-centre spacing of each axle at different levels can reasonably design, it is ensured that provide rational output speed, ensure that individual stage reduction structure has enough intensity simultaneously.
Continue with the prioritization scheme of the lubricated type primary speed-down structure introducing vertical type speed reducer (change gear).
In order to prevent machine oil dirty further, at the oil groove being arranged above with annular of above-mentioned gear oil internal ring, the outer of oil groove is provided with chamfering.One-level bevel gear shaft drives gear oil internal ring high speed rotating, and the machine oil in oil groove splashes obliquely along chamfering under centrifugal action, forms an annular mist of oil, and it is dirty that this annular mist of oil can block machine oil further.
In order to improve the effect of lubrication further, being socketed with two discs on above-mentioned large bevel gear shaft, two discs lay respectively at the both sides of one-level bevel gear wheel.Two discs upwards provide more machine oil, also improve the effect of cooling while improving lubricant effect.
In order to improve the effect of sealing further, being provided with four oil seal grooves in above-mentioned end cap, in four oil seal grooves, interval is disposed with two oil sealings.And after a period of time has passed, when oil sealing weares and teares, oil sealing, two oil sealings before taking off can be loaded in remaining two oil seal grooves, greatly facilitate maintenance work, and extend the service life of end cap, reduce maintenance of equipment cost.
In order to prevent engine oil leakage in motor further, connect in the lower end of above-mentioned one-level bevel gear shaft and have shaft coupling, shaft coupling to facilitate assembling of motor shaft；Shaft coupling is positioned at described casing, and in the lower section of described end cap；Be fixed with the lower oil shield of a tubular at casing inner bottom part, the outer, lower end of lower oil shield seals with box bottom, to prevent machine oil from penetrating into lower oil shield inner core；Lower oil shield is enclosed within outside shaft coupling；The upper oil shield of an annular closely it is socketed with on one-level bevel gear shaft, upper oil shield is between end cap and shaft coupling, the outer of upper oil shield has downwardly extended cylindrical portion, and cylindrical portion is enclosed within the outside of lower oil shield, and lower oil shield and upper oil shield form a set of well, lid formula oil shield.Accordingly even when oil sealing is having certain abrasion to cause engine oil leakage when, machine oil also flows between lower oil shield and wall box only along upper oil shield, without leaking in motor, thoroughly solves the problem that machine oil penetrates into motor.
In order to prevent from using for a long time or machine oil liquid level between lower oil shield and wall box that other contingency causes exceeds the problem on edge on lower oil shield, being provided with oil spilling mouth on the sidewall of above-mentioned casing, the height and position of oil spilling mouth is between the upper edge of casing inner bottom part and described lower oil shield.As long as so machine oil liquid level exceeds oil spilling mouth and passes to outside casing, do not penetrate in motor yet, protect motor further.
In order to improve further the service life of bevel gear pair, bevel gear and the one-level bevel gear wheel of above-mentioned one-level bevel gear shaft upper end are zero bevel gear.
In order to improve cooling-down effect, the water pipe for water cooling is installed in above-mentioned casing.This water pipe is copper metal tube, and two ends connect source of recycled water, the snakelike coiling of water pipe part in casing after casing, to increase contact area, improve rate of cooling.
The present invention mainly has the advantages that by the way of level Four blocks and reaches sealing effectiveness, prevents machine oil from penetrating in motor；Disc upwards lubricates for individual stage reduction mechanism and plays cooling effect；Double discs make lubrication and cooling-down effect more preferable；Thoroughly solve the problem that machine oil penetrates into motor；Facilitate maintenance work, the service life of prolonged deceleration machine, reduce maintenance of equipment cost.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the embodiment of the present invention 1.
Fig. 2 is to keep off the partial enlarged drawing at oil internal ring and end cap in Fig. 1.
Fig. 3 is the cross-sectional view of the embodiment of the present invention 2.
Fig. 4 is the left view structural representation of Fig. 3.
Fig. 5 is the cross-sectional view of gear oil internal ring in the embodiment of the present invention 2.
Fig. 6 is the cross-sectional view of end cap in the embodiment of the present invention 2.
Fig. 7 is the cross-sectional view of the embodiment of the present invention 3.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.Accompanying drawing being merely cited for property explanation, it is impossible to be interpreted as the restriction to this patent.
For more succinct explanation the present embodiment, in accompanying drawing or explanation, some well known to a person skilled in the art but can omit with these incoherent parts of main contents created.Additionally for ease of statement, in accompanying drawing, some parts has omission, zooms in or out, but does not represent size or the entire infrastructure of actual product.
Embodiment 1:
As shown in Figure 1, the lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear), including casing 1, one-level bevel gear shaft 2, upper bearing (metal) 3, lower bearing 4, end cap 5, oil sealing 6, gear oil internal ring 7, round nut 8, one-level bevel gear wheel 12, large bevel gear shaft 13, disc 14.
Wherein casing 1 is designed according to step of reduction, the installation of bearing, oil filler point position, access panel position etc., and those skilled in the art uses for reference existing gearbox structure and can draw.
One-level bevel gear shaft 2 is vertically arranged in the bottom in casing 1, and the upper bearing (metal) 3 and lower bearing 4 by arranging up and down is connected with casing 1.
As in figure 2 it is shown, gear oil internal ring 7 is arranged on below lower bearing 4, gear oil internal ring 7 is annular, and is connected on one-level bevel gear shaft 2 by round nut 8 lock sleeve, and the outer of gear oil internal ring 7 downwardly extends out flange 71.
End cap 5 is according to the named end cap of its operation principle.As in figure 2 it is shown, end cap 5 is a ring bodies being enclosed within outside one-level bevel gear shaft 2, and it is positioned at below gear oil internal ring 7.End cap 5 passes through screw locking on casing 1, end cap 5 be arranged above with cannelure 51, the flange 71 of gear oil internal ring 7 gos deep in the cannelure 51 of end cap 5, leave gap between flange 71 and cannelure 51 and form the labyrinth type oil circuit around flange 71 outer, being seen as the U-shaped oil circuit around flange 71 outer from section.It is equipped with oil seal groove 52 in end cap 5, in oil seal groove 52, is provided with oil sealing 6.
Again as it is shown in figure 1, casing 1 is divided into epicoele 9, cavity of resorption 10 and cushion chamber 11 by upper bearing (metal) 3, lower bearing 4, end cap 5, oil sealing 6 by the present embodiment, upper bearing (metal) more than 3 is epicoele 9, and end cap less than 5 is cavity of resorption 10, is cushion chamber 11 between upper bearing (metal) 3 and end cap 5.One-level bevel gear shaft 2 part is positioned in epicoele 9, and a part is positioned at cushion chamber 11, and some is positioned in cavity of resorption 10.
The bevel gear of one-level bevel gear shaft 2 upper end engages with one-level bevel gear wheel 12, and one-level bevel gear wheel 12 is fixed on the large bevel gear shaft 13 being horizontally set in casing 1, and disc 14 is tightly sleeved on large bevel gear shaft 13.
The purpose of the present embodiment is to solve the lubrication problem of vertical type speed reducer (change gear), but first has to the oil-tightening problem of solution machine.Because the motor of this type of vertical type speed reducer (change gear) is mounted in the lower section of reductor, if sealing bad, in machine oil meeting seepage flow to motor, thus affecting the normal operation of motor, also can shorten the service life of motor, it is also possible to can directly damage motor.
Using upper bearing (metal) 3, lower bearing 4, end cap 5, oil sealing 6 that casing 1 is divided into epicoele 9, cavity of resorption 10 and cushion chamber 11, epicoele 9 are used for installing individual stage reduction mechanism for this present embodiment, cavity of resorption 10 is for installing the bindiny mechanism of one-level bevel gear shaft 2 and motor shaft.Machine oil pours in epicoele 9, and machine oil liquid level flushes with the axle center of large bevel gear shaft 13 substantially, and such upper bearing (metal) 3 forms the first order and blocks, and prevents machine oil dirty；But still having in part machine oil dirty entrance cushion chamber 11 after operating a period of time, such lower bearing 4 can be lubricated, lower bearing 4 forms second level blocking-up simultaneously；But it is dirty to still suffer from part machine oil after operating a period of time, below lower bearing 4, therefore devise a labyrinth type oil circuit, form the third level and block, to slow down machine oil dropping velocity, prevent machine oil from directly impacting oil sealing 6, improve sealing effectiveness, extend the service life of oil sealing 6；Oil sealing 6 blocks as the fourth stage.By the way of above level Four blocks, reach sealing effectiveness, prevent the machine oil in epicoele 9 from flowing in the motor of cavity of resorption 10 and lower section.
After the oil-tightening Resolving probiems of machine, continue with the problem solving lubrication.This type of reductor is big due to load, so typically using high-power and high-speed motor, after primary speed-down, the rotating speed of large bevel gear shaft 13 is the highest, this just provides enough rotating speeds to disc 14, can upwards be thrown to machine oil in individual stage reduction mechanism be lubricated under centrifugal action.After lubrication, machine oil can fall again, reaches the purpose repeatedly lubricated, and meanwhile, the machine oil of whereabouts can take away the heat in individual stage reduction mechanism, reaches certain cooling purpose, extends the service life of individual stage reduction mechanism.
Embodiment 2:
The present embodiment improves on the basis of embodiment 1, introduces one by one below concrete improvements.
As it is shown on figure 3, the disc 14 of large bevel gear shaft 13 socket is two, two discs 14 lay respectively at the both sides of one-level bevel gear wheel 12.Two discs 14 upwards provide more machine oil, and lubrication is the most uniform, also improves the effect of cooling while improving lubricant effect.
As shown in Figure 3 and Figure 5, in order to prevent machine oil dirty further, at the oil groove 72 being arranged above with annular of gear oil internal ring 7, the outer of oil groove 72 is provided with chamfering 73.One-level bevel gear shaft 2 drives gear oil internal ring 7 high speed rotating, and the machine oil in oil groove 72 splashes obliquely along chamfering 73, forms an annular mist of oil, and it is dirty that this annular mist of oil can block machine oil further.
As shown in Figure 6, in order to improve the effect of sealing further, the present embodiment is provided with four oil seal grooves 52 at the internal ring of end cap 5, and in four oil seal grooves 52, interval arranges two oil sealings 6.After a period of time has passed, when the two oil sealing 6 weares and teares, new oil sealing 6 can be loaded in remaining two oil seal grooves 52, two oil sealings 6 before taking off, greatly facilitate maintenance work, and extend the service life of end cap 5, reduce maintenance of equipment cost.
As it is shown on figure 3, reductor is connected with motor for convenience, the present embodiment connects in the lower end of one-level bevel gear shaft 2 has shaft coupling 15, shaft coupling 15 to be positioned at the lower section of end cap 5.
The most as shown in Figure 3, in order to prevent engine oil leakage in motor further, the present embodiment is fixed with the lower oil shield 16 of a tubular at casing 1 inner bottom part, lower oil shield 16 is enclosed within outside shaft coupling 15, and lower oil shield 16 can be directly welded at bottom casing 1 to prevent the engine oil leakage in lower 16 outsides of oil shield to inside cylinder.The present embodiment is to direct out on the lower edge of lower oil shield 16 to extend foundation ring 161, and the sidewall of foundation ring 161 and casing 1 is collectively forming the box bottom of sealing, to prevent engine oil leakage to inside cylinder.The upper oil shield 17 of a fixedly sleeved annular on one-level bevel gear shaft 2, upper oil shield 17 is between end cap 5 and shaft coupling 15, and the outer of upper oil shield 17 has downwardly extended cylindrical portion 171, and cylindrical portion 171 is enclosed within the outside of lower oil shield 16 upper semisection.Lower oil shield 16 and upper oil shield 17 form a set of well, lid formula oil shield.Accordingly even when oil sealing 6 is having certain abrasion to cause engine oil leakage when, machine oil also flows between lower oil shield 16 and the sidewall of casing 1 only along upper oil shield 17, without leaking in motor, thoroughly solves the problem that machine oil penetrates into motor.
In order to prevent from using for a long time or machine oil liquid level between lower oil shield 16 and casing 1 sidewall that other contingency causes exceeds the problem on edge on lower oil shield 16, being mounted with an oil spilling mouth 18 on the sidewall of casing 1, the height and position of oil spilling mouth 18 is between the upper edge of lower oil shield 16 and foundation ring 161 upper surface.As long as so machine oil liquid level exceeds oil spilling mouth 18, machine oil passes to, outside casing 1, also not penetrate in motor, protects motor further.
In order to improve further the service life of bevel gear pair, bevel gear and the one-level bevel gear wheel 12 of one-level bevel gear shaft 2 upper end are zero bevel gear.
As shown in Figure 4, in order to improve cooling-down effect, the water pipe 24 for water cooling is installed in casing 1.Water pipe 24 is copper metal tube, and two ends connect outer loop water source, the snakelike coiling of the water pipe 24 part in casing 1 after casing 1, to increase contact area, improve rate of cooling.
Embodiment 3:
As shown in Figure 7, a kind of vertical type speed reducer (change gear), the lubricated type primary speed-down structure of the vertical type speed reducer (change gear) in employing embodiment 2, and two grades little gears 19 are set on large bevel gear shaft 13, two grades little gears 19 are adjacent with one-level bevel gear wheel 12, two grades little gears 19 are engaged with two grades of gear wheels 20, two grades of gear wheels 20 are fixed on tertiary gear axle 21, tertiary gear axle 21 is horizontally set in casing 1 by two bearings, the gear of tertiary gear axle 21 is engaged with three grades of gear wheels 22, three grades of gear wheels 22 are fixed on output shaft 23, output shaft 23 is horizontally set on casing 1 by two bearings.Disc 14 in the present embodiment is two, and two discs 14 are positioned at one-level bevel gear wheel 12 and the both sides of two grades little gears 19.
The vertical type speed reducer (change gear) of the present embodiment is for driving the roller-way of mill, and roller table speed requires relatively low and start and stop frequent, if using double reduction, individual stage reduction ratios is very big, can cause the insufficient strength of individual stage reduction structure；If using level Four slowing-down structure, the profile of reductor is inconvenient, relatively costly compared with big, heavier mass, handling；So the present embodiment uses three grades of step of reductions, speed reducing ratio, the centre-to-centre spacing of each axle at different levels can reasonably design, it is ensured that provide rational output speed, ensure that individual stage reduction structure has enough intensity simultaneously.
These are only three specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, all insubstantial modifications utilizing present inventive concept to make the present invention, within each falling within protection scope of the present invention.
Claims (8)
1. a lubricated type primary speed-down structure for vertical type speed reducer (change gear), including casing, it is characterised in that the lower vertical in described casing is provided with one-level bevel gear shaft, one-level bevel gear shaft is connected with casing by two bearings arranged up and down；Being positioned at below the bearing of lower section and be cased with end cap in the outside of one-level bevel gear shaft, end cap is fixed in casing, is provided with oil seal groove in end cap, oil sealing it is provided with in oil seal groove, casing is divided into epicoele and cavity of resorption by two bearings, end cap, oil sealings, more than bearing is above epicoele, is cavity of resorption below end cap；Being additionally provided with gear oil internal ring between following bearing and end cap, gear oil internal ring for annular and is tightly sleeved on one-level bevel gear shaft, and the outer of gear oil internal ring downwardly extends out flange；End cap be arranged above with cannelure, the flange of gear oil internal ring gos deep in the cannelure of end cap, and leaves gap between flange and cannelure and form the labyrinth type oil circuit around flange outer；The bevel gear of one-level bevel gear shaft upper end is engaged with one-level bevel gear wheel, and one-level bevel gear wheel is fixed on horizontally disposed large bevel gear shaft, and large bevel gear shaft is socketed with disc；The oil groove being arranged above with annular of described gear oil internal ring, the outer of oil groove is provided with chamfering.
The lubricated type primary speed-down structure of vertical type speed reducer (change gear) the most according to claim 1, it is characterised in that be socketed with two discs on described large bevel gear shaft, two discs lay respectively at the both sides of one-level bevel gear wheel.
The lubricated type primary speed-down structure of vertical type speed reducer (change gear) the most according to claim 1, it is characterised in that being provided with four oil seal grooves in described end cap, in four oil seal grooves, interval is disposed with two oil sealings.
The lubricated type primary speed-down structure of vertical type speed reducer (change gear) the most according to claim 1, it is characterised in that the lower end of described one-level bevel gear shaft connects has shaft coupling, shaft coupling to be positioned at described casing, and in the lower section of described end cap；Casing inner bottom part is fixed with the lower oil shield of a tubular, and lower oil shield is enclosed within outside shaft coupling；Closely being socketed with the upper oil shield of an annular on one-level bevel gear shaft, upper oil shield is between end cap and shaft coupling, and the outer of upper oil shield has downwardly extended cylindrical portion, and cylindrical portion is enclosed within the outside of lower oil shield.
The lubricated type primary speed-down structure of vertical type speed reducer (change gear) the most according to claim 4, it is characterised in that be provided with oil spilling mouth on the sidewall of described casing, the height and position of oil spilling mouth is between the upper edge of casing inner bottom part and described lower oil shield.
The lubricated type primary speed-down structure of vertical type speed reducer (change gear) the most according to claim 1, it is characterised in that bevel gear and the one-level bevel gear wheel of described one-level bevel gear shaft upper end are zero bevel gear.
The lubricated type primary speed-down structure of vertical type speed reducer (change gear) the most according to claim 1, it is characterised in that be provided with the water pipe for water cooling in described casing.
8. a vertical type speed reducer (change gear), it is characterized in that, the lubricated type primary speed-down structure of employing vertical type speed reducer (change gear) described in claim 1, described large bevel gear shaft is provided with two grades of little gears, two grades of little gears are adjacent with one-level bevel gear wheel, two grades of little gears are engaged with two grades of gear wheels, two grades of gear wheels are fixed on tertiary gear axle, tertiary gear axle is horizontally set in casing, the gear of tertiary gear axle is engaged with three grades of gear wheels, three grades of gear wheels are fixed on output shaft, and output shaft is horizontally set on casing；Described disc is two, and two discs are positioned at one-level bevel gear wheel and the both sides of two grades of little gears.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410430140.2A CN104214278B (en) | 2014-08-28 | 2014-08-28 | The lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear) and a kind of vertical type speed reducer (change gear) |
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| CN201410430140.2A CN104214278B (en) | 2014-08-28 | 2014-08-28 | The lubricated type primary speed-down structure of a kind of vertical type speed reducer (change gear) and a kind of vertical type speed reducer (change gear) |
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| CN104214278A CN104214278A (en) | 2014-12-17 |
| CN104214278B true CN104214278B (en) | 2016-08-24 |
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| CN104214278A (en) | 2014-12-17 |
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Address after: 450001 science avenue of Zhengzhou high tech Industrial Development Zone, Zhengzhou, Henan Province, No. Patentee after: Zhengzhou Machinery Research Institute Co., Ltd. Address before: Fengyang high tech Industrial Development Zone, Henan province Zhengzhou city 450001 Street No. 10 Patentee before: Zhengzhou Research Institute of Mechanical Engineering |