CN103398165A - Self-circulation lubricating method and device for vertical type speed reducer - Google Patents
Self-circulation lubricating method and device for vertical type speed reducer Download PDFInfo
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- CN103398165A CN103398165A CN2013102128700A CN201310212870A CN103398165A CN 103398165 A CN103398165 A CN 103398165A CN 2013102128700 A CN2013102128700 A CN 2013102128700A CN 201310212870 A CN201310212870 A CN 201310212870A CN 103398165 A CN103398165 A CN 103398165A
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Abstract
The invention discloses a lubricating method and device for a vertical type speed reducer. According to the lubricating method, a lower bearing is immersed in lubricating oil; when the speed reducer rotates, the rotary power of a transmission shaft which connects an upper bearing with the lower bearing is used for pumping the lubricating oil at the bottom of a box body to the position above the upper bearing so that the upper bearing of the vertical type speed reducer and all moving parts can be lubricated. According to the lubricating method and device for the vertical type speed reducer, a central through hole and an outer circle through hole of the transmission shaft of the vertical type speed reducer are used as an oil inlet / outlet channel and an oil inlet / outlet for the lubricating oil respectively; under the condition that a power source is not additionally arranged, the rotary power of the transmission shaft of the vertical type speed reducer is used for pumping the lubricating oil inside the box body to the upper end of the vertical type speed reducer through a spiral groove formed in the transmission shaft so that the upper bearing of the vertical type speed reducer and all the moving parts can be lubricated. According to the lubricating method, power loss caused by full-load lubrication of the vertical type speed reducer is avoided, an outer circulation lubricating system is removed, the structure of the vertical type speed reducer is simplified, the amount of the lubricating oil injected into the vertical type speed reducer is lowered, the weight and size of the vertical type speed reducer are reduced, and the manufacturing cost and using cost of the vertical type speed reducer are lowered.
Description
Technical field
The present invention relates to a kind of self-circulation lubricating method and device of vertical speed reducer, belong to the retarder lubrication technical field.
Background technique
Lubricating of the upper bearing of existing vertical speed reducer and each movement parts, adopt full oily formula bath lubrication or outer circulation lubricating system usually.So-called full oily formula bath lubrication is to fill with lubricant oil to realize the lubricated of retarder upper bearing and each movement parts in gear-box.The shortcoming of this lubricating system is:, because all reduction gear and movement parts all are immersed in Lubricants, strengthened the rotational resistance of gear, made the power loss of retarder large; The adding amount of lubricant oil is large, and cost is high, and the weight of retarder is large.Another outer circulation lubricating system, to add a cover circulating oil system in the outside of retarder, complete the upper bearing of vertical speed reducer and lubricating of each movement parts by the circulating oil system of retarder outside, the shortcoming of this lubricating system is: cost is high, volume is large, complex structure.
Summary of the invention
The object of the invention is to, a kind of self-circulation lubricating method and device of vertical speed reducer is provided.Can simplify the structure of lubrication system, reduce the retarder volume and weight; In retarder, the oil filling amount of lubricant oil is few, can reduce the retarder power loss simultaneously.To overcome the deficiencies in the prior art.
Technological scheme of the present invention:
A kind of self-circulation lubricating method of vertical speed reducer, lower bearing in the method is immersed in lubricant oil, when retarder rotates, the rotating power of the transmission shaft by connecting metal (upper, the lubricating pump of bottom half to upper bearing (metal) top, to realize the lubricated of vertical speed reducer upper bearing (metal) and each movement parts.
In preceding method, the axle center of described transmission shaft is provided with main oil gallery, and the lubricant oil of bottom half is pumped to the upper bearing (metal) top by main oil gallery in transmission shaft.
In preceding method, described transmission shaft is provided with driving gear, and the transmission shaft cylindrical of driving gear below is provided with the oil storage annular groove, and the oil storage annular groove communicates with main oil gallery; The transmission shaft cylindrical of oil storage annular groove bottom is provided with at least one spiral chute, and spiral chute communicates with the oil storage annular groove; The spiral chute overcoat has sleeve pipe, and the tube wall of sleeve bottom is provided with oil inlet hole; The lubricant oil of bottom half enters the rotation of spiral chute by transmission shaft by oil inlet hole lubricant oil is pumped into the upper bearing (metal) top by spiral chute, oil storage annular groove and main oil gallery when transmission shaft rotates.
In preceding method, described upper bearing (metal) top is provided with bearing cap, and the transmission shaft between bearing cap and upper bearing (metal) is provided with oil outlet; Flow into cavity between bearing cap and upper bearing (metal) by the lubricant oil that comes on main oil gallery by oil outlet.
In preceding method, the bearing cap lower sidewall at described upper bearing (metal) place is provided with through hole, and through hole communicates with the draining hole on cabinet wall; The lubricant oil that flows out from the draining hole is lubricated driving gear.
Device according to preceding method forms, comprise casing, is provided with upper bearing (metal) and lower bearing in casing, and upper bearing (metal) is connected transmission shaft with lower bearing and connects, and the transmission shaft between metal (upper is provided with driving gear; Be provided with main oil gallery in described transmission shaft, the transmission shaft cylindrical of main oil gallery bottom is provided with the oil storage annular groove that communicates with main oil gallery, and the transmission shaft cylindrical of oil storage annular groove bottom is provided with at least one spiral chute, and spiral chute communicates with the oil storage annular groove; The spiral chute overcoat has sleeve pipe, and the tube wall of sleeve bottom is provided with oil inlet hole; The transmission shaft of upper bearing (metal) top is provided with the oil outlet that communicates with main oil gallery.
In aforementioned means, the casing at described upper bearing (metal) and lower bearing place is provided with bearing cap.
In aforementioned means, the bearing cap upper portion side wall of described upper bearing (metal) is provided with through hole, and through hole communicates with the draining hole on cabinet wall.
In aforementioned means, the sleeve bottom of described lower bearing top is provided with the lower bearing lubrication hole.
Compared with prior art, the present invention is as the turnover oil duct of lubricant oil with into and out of hydraulic fluid port with the hole of vertical speed reducer center transmission shaft through hole and cylindrical perforation, by the spiral chute on transmission shaft, in the situation that do not increase power source, utilize the rotating power of retarder transmission shaft, lubricating pump in casing, to the retarder upper end, is realized the lubricated of retarder upper bearing and each movement parts.The power loss that the method has avoided the full oil lubrication of vertical speed reducer to cause, removed outer circulation lubricating system, reducer structure becomes simply, has reduced the adding amount of lubricant oil in retarder, weight and volume is reduced, reduced the manufacturing cost and use cost of retarder.
Description of drawings
Fig. 1 is structural representation of the present invention.
Being labeled as in accompanying drawing: 1-casing, 2-upper bearing (metal), 3-lower bearing, 4-transmission shaft, 5-driving gear, 6-main oil gallery, 7-oil storage annular groove, 8-spiral chute, 9-sleeve pipe, 10-oil inlet hole, 11-oil outlet, 12-bearing cap, 13-through hole, 14-draining hole, 15-lower bearing lubrication hole.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing, but not as any limitation of the invention.
A kind of self-circulation lubricating method of vertical speed reducer, as shown in Figure 1.Lower bearing 3 in the method is immersed in lubricant oil, when retarder rotates, the rotating power of the transmission shaft 4 by connecting metal (upper, the lubricating pump of casing 1 bottom to upper bearing (metal) 2 tops, to realize the lubricated of vertical speed reducer upper bearing (metal) 2 and each movement parts.The axle center of described transmission shaft 4 is provided with main oil gallery 6, and the lubricant oil of bottom half is pumped to upper bearing (metal) 2 tops by the interior main oil gallery 6 of transmission shaft 4.Described transmission shaft 4 is provided with driving gear 5, and transmission shaft 4 cylindricals of driving gear 5 belows are provided with oil storage annular groove 7, and oil storage annular groove 7 communicates with main oil gallery 6; Transmission shaft 4 cylindricals of oil storage annular groove 7 bottoms are provided with at least one spiral chute 8, and spiral chute 8 communicates with oil storage annular groove 7; Spiral chute 8 overcoats have sleeve pipe 9, and the tube wall of sleeve pipe 9 bottoms is provided with oil inlet hole 10; The lubricant oil of casing 1 bottom enters the rotation of spiral chute 8 by transmission shaft 4 by oil inlet hole 10 lubricant oil is pumped into upper bearing (metal) 2 tops by spiral chute 8, oil storage annular groove 7 and main oil gallery 6 when transmission shaft 4 rotation.Described upper bearing (metal) 2 tops are provided with bearing cap 12, and the transmission shaft 4 between bearing cap 12 and upper bearing (metal) 2 is provided with oil outlet 11; Pass through by the lubricant oil that comes on main oil gallery 6 cavity that oil outlet 11 flows between bearing caps 12 and upper bearing (metal) 2.The bearing cap lower sidewall at described upper bearing (metal) 2 places is provided with through hole 13, and through hole 13 communicates with the draining hole 14 on casing 1 inwall; 14 lubricant oil that flow out are lubricated driving gear 5 from the draining hole.
According to the device of preceding method formation, as shown in Figure 1.Comprise casing 1, be provided with upper bearing (metal) 2 and lower bearing 3 in casing 1, upper bearing (metal) 2 is connected with lower bearing through transmission shaft 4 connections, and the transmission shaft 4 between metal (upper is provided with driving gear 5; Be provided with main oil gallery 6 in described transmission shaft 4, transmission shaft 4 cylindricals of main oil gallery 6 bottoms are provided with the oil storage annular groove 7 that communicates with main oil gallery 6, and transmission shaft 4 cylindricals of oil storage annular groove 7 bottoms are provided with at least one spiral chute 8, and spiral chute 8 communicates with oil storage annular groove 7; Spiral chute 8 overcoats have sleeve pipe 9, and the tube wall of sleeve pipe 9 bottoms is provided with oil inlet hole 10; The transmission shaft 4 of upper bearing (metal) 5 tops is provided with the oil outlet 11 that communicates with main oil gallery 6.The casing 1 at described upper bearing (metal) 2 and lower bearing 3 places is provided with bearing cap 12.The bearing cap upper portion side wall of described upper bearing (metal) 5 is provided with through hole 13, and through hole 13 communicates with the draining hole 14 on casing 1 inwall.Sleeve pipe 9 bottoms of described lower bearing 3 tops are provided with lower bearing lubrication hole 15.
Working procedure of the present invention and principle
As shown in Figure 1, the present invention, in when work, is driven transmission shaft 4 rotations of vertical speed reducer by motor or other power equipment, and the bottom half of retarder is equipped with lubricant oil, and lubricant oil floods lower bearing lubrication hole 15 and the oil inlet hole 10 on the sleeve pipe 9 of lower bearing 3 tops.Lubricant oil is lubricated by 15 pairs of lower bearings 3 of lower bearing lubrication hole.During transmission shaft 4 rotation, lubricant oil enters spiral chute 8 on sleeve pipe 9 intermediate solid drive shafts 4 by oil inlet hole 10, transmission shaft 4 will enter spiral chute 8 in rotary course lubricant oil pumps into cavity between upper bearing (metal) 2 and bearing cap 12 by oil storage annular groove 7, main oil gallery 6 and oil outlet 11, and the lubricant oil in cavity is lubricated upper bearing (metal) 2.Simultaneously, the lubricant oil via through holes 13 in cavity and draining hole 14 flow into driving gear 5, and driving gear 5 is lubricated.Lubricant oil after lubricated to driving gear 5 returns to the bottom half of retarder.
The present invention in the specific implementation, as shown in Figure 1.Be processed with the oil storage annular groove 7 of many spiral chutes 8 and an annular on the cylindrical of the lower end of transmission shaft 4, oil storage annular groove 7 communicates with each spiral chute 8, oil storage annular groove 7 communicates with the main oil gallery 6 in transmission shaft 4, be designed with an oil outlet 11 that radially connects transmission shaft 4 in the upper end of transmission shaft 4, during processing main oil gallery 6, by transmission shaft 4 top borings, and then with screw and sealing gasket, shutoff is carried out in the processing aperture of main oil gallery 6; Sleeve pipe 9 is enclosed within outside spiral chute 8 and oil storage annular groove 7 on transmission shaft 4, and sleeve pipe 9 is fixed by screws on lower box, and on the endoporus of sleeve pipe 9 and transmission shaft 4, the cylindrical at spiral chute 8 places coordinates, and matching gap is 0.01～0.015mm; On the top of vertical speed reducer, bearing cap 12 is fixed by screws on upper box, and upper ball cover coordinates the hole on cylindrical to communicate with through hole 13 and draining hole 14 on upper box with upper box.
When transmission shaft 4 is with nutating gear 5 rotation, lubricant oil in speed reducer is by the filler opening on sleeve pipe 9, enter the spiral chute 8 on transmission shaft 4 cylindricals, under the effect of centrifugal force, lubricant oil in spiral chute 8 constantly enters into the oil storage annular groove 7 that communicates with it, under pressure, lubricant oil enters into cavity between upper bearing (metal) 2 and bearing cap 12 by the main oil gallery 6 on transmission shaft 4 and oil outlet 11.Lubricant oil in cavity, the upper bearing (metal) 2 on the lubricated vertical speed reducer top of a part, a part by each movement parts in the lubricated driving gear 5 of the through hole 13 on bearing cap 12 and the draining hole on casing 1 14 after, then flow back in the oil sump of speed reducer bottom and realize circulating lubrication.
In the present invention, spiral fluted sense of rotation on transmission shaft 4 cylindricals, be to design processing according to the sense of rotation of transmission shaft 4, is divided into two kinds of situations: the one, and transmission shaft 4 single direction rotations; The 2nd, transmission shaft 4 positive and negative alternate rotations.When transmission shaft 4 single direction rotations, sense of rotation is clockwise direction, and spiral chute 8 is processed into dextrorotation; Sense of rotation is that counterclockwise spiral chute 8 is processed into left-handed; When transmission shaft 4 positive and negative alternate rotation, spiral chute 8 is processed into left-handed or dextrorotation all can.If transmission shaft 4 positive and negative alternate rotations, one of them sense of rotation is pump oil operative orientation, and another sense of rotation transmission shaft 4 does not carry out the work of pump oil, at this moment, the lubricant oil that stores in cavity between upper bearing (metal) 2 and bearing cap 12 can be lubricated each movement parts in upper bearing (metal) 2 and driving gear 5 continuously, when transmission shaft 4 counterrotating, lubricant oil in cavity is supplemented, make vertical speed reducer upper bearing (metal) 2 and driving gear 5 all can reach the purpose of automatic circulation lubrication when the rotation of the unidirectional and positive and negative alternate of transmission shaft 4.
Claims (9)
1. the self-circulation lubricating method of a vertical speed reducer, it is characterized in that: the lower bearing in the method is immersed in lubricant oil, when retarder rotates, the rotating power of the transmission shaft by connecting metal (upper, the lubricating pump of bottom half to upper bearing (metal) top, to realize the lubricated of vertical speed reducer upper bearing (metal) and each movement parts.
2. method according to claim 1, it is characterized in that: the axle center of described transmission shaft is provided with main oil gallery, and the lubricant oil of bottom half is pumped to the upper bearing (metal) top by main oil gallery in transmission shaft.
3. method according to claim 1, it is characterized in that: described transmission shaft is provided with driving gear, and the transmission shaft cylindrical of driving gear below is provided with the oil storage annular groove, and the oil storage annular groove communicates with main oil gallery; The transmission shaft cylindrical of oil storage annular groove bottom is provided with at least one spiral chute, and spiral chute communicates with the oil storage annular groove; The spiral chute overcoat has sleeve pipe, and the tube wall of sleeve bottom is provided with oil inlet hole; The lubricant oil of bottom half enters the rotation of spiral chute by transmission shaft by oil inlet hole lubricant oil is pumped into the upper bearing (metal) top by spiral chute, oil storage annular groove and main oil gallery when transmission shaft rotates.
4. method according to claim 1, it is characterized in that: described upper bearing (metal) top is provided with bearing cap, and the transmission shaft between bearing cap and upper bearing (metal) is provided with oil outlet; Flow into cavity between bearing cap and upper bearing (metal) by the lubricant oil that comes on main oil gallery by oil outlet.
5. method according to claim 1, it is characterized in that: the bearing cap lower sidewall at described upper bearing (metal) place is provided with through hole, and through hole communicates with the draining hole on cabinet wall; The lubricant oil that flows out from the draining hole is lubricated driving gear.
6. the device that forms of the described method of an arbitrary claim, comprise casing (1), be provided with upper bearing (metal) (2) and lower bearing (3) in casing (1), upper bearing (metal) (2) is connected 3 with lower bearing) connect through transmission shaft (4), the transmission shaft between metal (upper (4) is provided with driving gear (5); It is characterized in that: be provided with main oil gallery (6) in described transmission shaft (4), transmission shaft (4) cylindrical of main oil gallery (6) bottom is provided with the oil storage annular groove (7) that communicates with main oil gallery (6), transmission shaft (4) cylindrical of oil storage annular groove (7) bottom is provided with at least one spiral chute (8), and spiral chute (8) communicates with oil storage annular groove (7); Spiral chute (8) overcoat has sleeve pipe (9), and the tube wall of sleeve pipe (9) bottom is provided with oil inlet hole (10); The transmission shaft (4) of upper bearing (metal) (5) top is provided with the oil outlet (11) that communicates with main oil gallery (6).
7. install according to claim 6, it is characterized in that: the casing (1) that described upper bearing (metal) (2) and lower bearing (3) are located is provided with bearing cap (12).
8. install according to claim 6, it is characterized in that: the bearing cap upper portion side wall of described upper bearing (metal) (5) is provided with through hole (13), and through hole (13) communicates with the draining hole (14) on casing (1) inwall.
9. install according to claim 6, it is characterized in that: sleeve pipe (9) bottom of described lower bearing (3) top is provided with lower bearing lubrication hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310212870.0A CN103398165B (en) | 2013-06-02 | 2013-06-02 | A kind of self-circulation lubricating method and device of vertical speed reducer |
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| CN201310212870.0A CN103398165B (en) | 2013-06-02 | 2013-06-02 | A kind of self-circulation lubricating method and device of vertical speed reducer |
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| CN103398165B CN103398165B (en) | 2016-12-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968051A (en) * | 2014-05-16 | 2014-08-06 | 郑州大学 | Automatic lubricating device of vertical speed reducer |
| CN105090461A (en) * | 2014-12-05 | 2015-11-25 | 芜湖三峰节能设备有限公司 | Lubricating oil self-circulation type speed reducer for cooling tower |
| CN105179659A (en) * | 2015-06-15 | 2015-12-23 | 李深文 | Powder ridge box with lubricating function |
| CN109780189A (en) * | 2018-12-31 | 2019-05-21 | 浙江戈唯特传动科技有限公司 | The structure of self-circulation lubricating function is able to achieve in a kind of gear-box |
| CN111152605A (en) * | 2017-11-20 | 2020-05-15 | 比亚迪股份有限公司 | Monorail train and horizontal axle assembly thereof |
| CN112628387A (en) * | 2020-12-25 | 2021-04-09 | 沈阳露天采矿设备制造有限公司 | Self-lubricating device of vertical planetary reducer of mining excavator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1563945A (en) * | 1921-07-08 | 1925-12-01 | Vincent G Apple | Electric motor |
| SU1743637A1 (en) * | 1990-02-19 | 1992-06-30 | Ivachev Leonid M | Auxiliary drive reduction gear of roller-plate mill |
| BR9201761A (en) * | 1992-05-04 | 1993-11-09 | Brasil Compressores Sa | OIL PUMP FOR HERMETIC VARIABLE SPEED COMPRESSOR |
| CN101586657A (en) * | 2009-06-22 | 2009-11-25 | 章易程 | Radical self-priming fluid lubricating method for gears |
| CN102847740B (en) * | 2012-09-28 | 2014-12-10 | 李维生 | Initiative spiral extrusion type forced lubrication drawing die box |
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2013
- 2013-06-02 CN CN201310212870.0A patent/CN103398165B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968051A (en) * | 2014-05-16 | 2014-08-06 | 郑州大学 | Automatic lubricating device of vertical speed reducer |
| CN103968051B (en) * | 2014-05-16 | 2016-05-18 | 郑州大学 | The automatic lubrication installation of vertical speed reducer |
| CN105090461A (en) * | 2014-12-05 | 2015-11-25 | 芜湖三峰节能设备有限公司 | Lubricating oil self-circulation type speed reducer for cooling tower |
| CN105179659A (en) * | 2015-06-15 | 2015-12-23 | 李深文 | Powder ridge box with lubricating function |
| CN111152605A (en) * | 2017-11-20 | 2020-05-15 | 比亚迪股份有限公司 | Monorail train and horizontal axle assembly thereof |
| CN111152605B (en) * | 2017-11-20 | 2022-05-13 | 比亚迪股份有限公司 | Monorail train and horizontal axle assembly thereof |
| CN109780189A (en) * | 2018-12-31 | 2019-05-21 | 浙江戈唯特传动科技有限公司 | The structure of self-circulation lubricating function is able to achieve in a kind of gear-box |
| CN112628387A (en) * | 2020-12-25 | 2021-04-09 | 沈阳露天采矿设备制造有限公司 | Self-lubricating device of vertical planetary reducer of mining excavator |
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| CN103398165B (en) | 2016-12-28 |
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