CN201599397U - Speed reducer - Google Patents

Speed reducer Download PDF

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Publication number
CN201599397U
CN201599397U CN2009203179338U CN200920317933U CN201599397U CN 201599397 U CN201599397 U CN 201599397U CN 2009203179338 U CN2009203179338 U CN 2009203179338U CN 200920317933 U CN200920317933 U CN 200920317933U CN 201599397 U CN201599397 U CN 201599397U
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CN
China
Prior art keywords
oil
speed reducer
casing
cap
central siphon
Prior art date
Application number
CN2009203179338U
Other languages
Chinese (zh)
Inventor
王世旺
肖春
Original Assignee
三一重工股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 三一重工股份有限公司 filed Critical 三一重工股份有限公司
Priority to CN2009203179338U priority Critical patent/CN201599397U/en
Application granted granted Critical
Publication of CN201599397U publication Critical patent/CN201599397U/en

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Abstract

The utility model discloses a speed reducer, which comprises a box, an end cover, a transmission system and a mounting seat. The transmission system is mounted inside the box, one end of the box is connected with the mounting seat, the other end of the box is connected with the end cover, the mounting seat is provided with an oil suction hole, the end cover is provided with an oil return system communicated with an inner cavity of the box, and the oil suction hole and the oil return system are connected through a pipeline and connected in series with a cooling filter and an oil pump to form a circulation loop. The speed reducer has the advantages of compact structure, simple technique, convenient use, energy conservation, and capabilities of cooling and filtering lubricating oil inside the box of the speed reducer, leading bearings and gears to be finely lubricated, and prolonging service life of the bearings and the gears.

Description

A kind of speed reducer
Technical field
The utility model relates to speed reducer, particularly a kind of speed reducer that reduces the lubricating oil temperature in the casing.
Background technique
At present, domestic applied speed reducer does not have the cold filtration system, because speed reducer all is installed in the walking or the working position of machinery, particularly for major works crawler travel machinery, its operating ambient temperature generally all is higher than external temperature, and speed reducer does not have sink, long-time high load work, cause the temperature of gear oil to raise, cause a lot of problems: (1) is difficult for forming oil film, the wearing and tearing of accelerating gear; (2) gear oil is apt to deteriorate, when the oil temperature surpasses 65 ℃, 10 ℃ of every increases, the oxidation of oil just doubles, in case after the oil oxidation, just produce greasy filth, acidulants etc., the beginning acidifying is rotten, and the decreased performance of oil more seriously causes the oil leab of bearing to be stopped up by carbon deposit, make bearing lubrication bad, reduce the working life of bearing; (3) quicken the rotten aging of oil sealing, cause the speed reducer leakage of oil.In addition, gear oil does not have purification plant, and the impurity in the gear oil also can get more and more, thereby quickens the wearing and tearing of bearing and gear greatly, reduces the working life of speed reducer, causes unnecessary loss on financial resources and material resources.
The model utility content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide that a kind of compact structure, technology are simple, energy saving, easy to use, the speed reducer that the lubricant oil in the speed reducer casing can be carried out cold filtration, this speed reducer can make bearing and the gear in it obtain good lubricating, and prolongs the working life of bearing and gear.
For solving the problems of the technologies described above, the technological scheme that the utility model proposes is: a kind of speed reducer, comprise casing, end cap, transmission system and mounting base, described transmission system is installed in the casing, described casing one end is connected with described mounting base, the other end of casing is connected with described end cap, described mounting base is provided with oil-sucking hole, described end cap is provided with the oil return system that is communicated with described cabinets cavity, and described oil-sucking hole links to each other by pipeline with oil return system and is connected into circulation loop with cooling filter, oil pump.
As further improvement of the utility model, described oil return system comprises the central siphon that is installed on described end cap gyration center place, offers the spill port that is communicated with cabinets cavity in the described central siphon, and described spill port links to each other with described oil-sucking hole by return tube.
Further improve as of the present utility model, the gyration center place of described end cap is provided with the oil return system mounting hole, described central siphon is arranged in this oil return system mounting hole, an end that links to each other with rubbing surface of end cover on the central siphon is provided with dynamic sealing means, described dynamic sealing means comprises the interior ring of pressing plate circle, bulging O RunddichtringO, sealing and sealing outer shroud, described sealing outer shroud and the oil return system mounting hole drive fit that is sheathed on successively from inside to outside on the central siphon.
An end that links to each other with described end cap outer side surface on the described central siphon is provided with angular contact bearing, the inner ring of this angular contact bearing is by inner ring sleeve and interior tightening nut positioning and locking, the outer ring of angular contact bearing and described oil return system mounting hole drive fit, and by outer ring sleeve and outer tightening nut positioning and locking.
Further improve again as of the present utility model, be connected with controller on the described oil pump, be equiped with temperature transducer on the described cabinet exterior, described temperature transducer is connected with controller.
Described oil-sucking hole is taper or cylindrical.
Compared with prior art, the utlity model has following beneficial effect:
Speed reducer compact structure of the present utility model, technology is simple, utilize the structure space of speed reducer self, on the mounting base of common speed reducer and end cap, be respectively equipped with oil-sucking hole and oil return system, and be connected into a circulation loop by pipeline and cooling filter and oil pump, after making lubricant oil in the casing be sucked out and to cool off, to filter again oil return to speed reducer, lubricating oil temperature when reducing speed reducer work can be controlled in the proper scope internal work temperature of speed reducer; And lubricant oil circulates each time and all will filter once; various abrasive particles that are accompanied by the high-intensity work of speed reducer and produce and impurity etc.; the filter that all is cooled filters out; improve the turbidity test of lubricant oil; well improve the working environment of speed reducer inside; make lubricant oil keep good performance; the bearing of speed reducer inside and gear can obtain good lubricated and protection; prolong the working life of speed reducer and the replacement cycle of lubricant oil; while, whole cold filtration system also played an effect of emitting gas port on speed reducer; speed reducer is communicated with the external world by the cold filtration system; energy balance inner and outer air pressure; prevent to make pressure become big, avoid the inner fail in compression of speed reducer Sealing and leakage of oil because the box house temperature raises.
Install automatic control system on oil pump, can monitor the operating temperature of speed reducer automatically, according to different operating modes the starting condition that different temperature parameters is regulated the cold filtration system is set, its use is more convenient.The dynamic sealing means of installing on the central siphon can be back to the lubricant oil behind the cold filtration gear-box of speed reducer, can stop the lubricant oil in the speed reducer to leak again from the oil return system mounting hole, play the double action of dynamic seal (packing) and oil return, make lubricant oil can have no to pass back in the cavity of transmission system with leaking, reach the purpose of energy saving.
Description of drawings
Fig. 1 is the structural representation of speed reducer of the present utility model;
Fig. 2 is the structural representation of oil return system in the utility model speed reducer.
The figure number explanation
1, speed reducer mounting bracket; 3, cooling filter; 4, oil pipe; 5, oil pump; 6, fuel sucking pipe; 7, controller; 8, oil-sucking hole; 9, mounting base; 10, seal arrangement; 11, temperature transducer; 12, transmission system; 13, parking brake; 14, end cap; 15, oil return system; 16, return tube; 17, casing; 18, conical bearing; 19, gland nut; 20, sleeve; 21, central siphon; 22, spill port; 23, locking nut; 24, pressing plate circle; 25, swelling O type circle; 26, sealing outer shroud; 27, ring in the sealing; 28, outer ring sleeve; 29, inner ring sleeve; 30, interior tightening nut; 31, pipe joint; 32, outer tightening nut; 33, angular contact bearing; 34, rubber seal.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
As depicted in figs. 1 and 2, speed reducer of the present utility model, comprise casing 17, end cap 14, transmission system 12 and mounting base 9, mounting base 9 is fixedlyed connected with speed reducer mounting bracket 1, transmission system 12 and parking brake 13 are housed in the casing 17, casing 17 1 ends are supported on the mounting base 9 by conical bearing 18, and by seal arrangement 10 sealings, the other end of casing 17 is provided with end cap 14, mounting base 9 is provided with oil-sucking hole 8, end cap 14 is provided with the oil return system 15 that is communicated with casing 17 inner chambers, oil-sucking hole 8 link to each other by pipeline with oil return system 15 and with cooling filter 3, oil pump 5 is connected into circulation loop.
In the present embodiment, oil-sucking hole 8 is positioned at the below of motor output shaft on the mounting base 9, and is communicated with the front end of conical bearing 18.The shape of oil-sucking hole 8 is preferably taper, also can be arranged to cylindrical or other are beneficial to the shape of oil suction according to actual conditions.The input end of oil pump 5 is communicated with oil-sucking hole 8 by fuel sucking pipe 6, and the output terminal of oil pump 5 is communicated with the input end of cooling filter 3 by oil pipe 4, and the output terminal of cooling filter 3 is communicated with oil return system 15 by return tube 16.Be connected with controller 7 on the oil pump 5, the temperature transducer 11 that can gather casing 17 temperature of installing on casing 17 outer walls, this temperature transducer 11 is connected with controller 7, controller 7 can be according to desired temperature, the temperature data that monitoring is in real time gathered by temperature transducer 11 judges whether to start oil pump 5 and cooling filter 3.When the parameter of transmit was higher than desired temperature, controller 7 sent signal, started oil pump 5, and cooling filter 3 is started working, and can avoid being in low thermophase at speed reducer and waste energy with regard to starting the cold filtration system, and its use is convenient.
In the present embodiment, the gyration center place of end cap 14 is provided with an oil return system mounting hole with its coaxial line, this oil return system 15 comprises the central siphon 21 that is installed in the oil return system mounting hole, offer the spill port 22 that is communicated with speed reducer casing 17 inner chambers in the central siphon 21, spill port 22 links to each other with oil-sucking hole 8 by return tube 16.The end that central siphon 21 is communicated with return tube 16 is provided with pipe joint 31, an end that links to each other with end cap 14 inner side surfaces on the central siphon 21 is provided with dynamic sealing means, this dynamic sealing means comprises interior ring 27 of pressing plate circle 24, bulging O RunddichtringO 25, sealing and the sealing outer shroud 26 that is sheathed on successively from inside to outside on the central siphon 21, sealing outer shroud 26 closely cooperates with the oil return system mounting hole, and be provided with locking nut 23 in central siphon 21 ends, tighten locking nut 23 and can make pressing plate circle 24 compress ring 27 in swelling O type circle 25 and the sealing.Central siphon 21 is provided with angular contact bearing 33 with end cap 14 outer side surface connecting places, the inner ring of this angular contact bearing 33 is by inner ring sleeve 29 and interior tightening nut 30 positioning and lockings, the outer ring of angular contact bearing 33 and oil return system mounting hole closely cooperate, and by outer ring sleeve 28 and outer tightening nut 32 positioning and lockings.Effect by outer ring sleeve 28 and outer tightening nut 32, inner ring sleeve 29 and interior tightening nut 30, the inner ring of angular contact bearing 33 and outer ring are fixed on corresponding position respectively, guarantee end cap 14 energy relative to rotating that central siphon 21 has no to obstruct, and central siphon 21 can not rotate.
As shown in the figure, in the present embodiment, the geometrical center position of end cap 14 is provided with outwards outstanding boss, the oil return system mounting hole runs through this boss, and the two ends of this oil return system mounting hole are provided with outer end counter sink and inner counter sink, angular contact bearing 33, inner ring sleeve 29 and interior tightening nut 30 all are positioned at the outer end counter sink, dynamic sealing means is positioned at inner counter sink, central siphon 21 is provided with the shaft shoulder, this shaft shoulder is positioned at inner counter sink and near its bottom, can prevents that central siphon 21 from skidding off spill port 2.In the sealing ring 27 axially by shaft shoulder location, and and the shaft shoulder between be provided with rubber seal 34.Axially being located by sleeve 20 of sealing outer shroud 26, inner counter sink end is provided with gland nut 19, tightens gland nut 19 and can make sleeve 20 be fixed sealing outer shroud 26, also is provided with rubber seal 34 between sealing outer shroud 26 and the inner counter sink bottom.Effect by gland nut 19, encircle on 27 positions that are fixed on separately in sealing outer shroud 26 and the sealing, and gland nut 19 and interior tightening nut 30 all can be regulated its axial impacting force easily, make swelling O type circle 25 keep certain deformation, ring 27 in sealing is applied certain pressure, make its taper lapping-in face keep permanent and strong contacting with sealing outer shroud 26, the precision of this conical surface is very high, very smooth, the conical surface of contact reaches the effect of sealing with regard to having become the lapping-in face, both can make lubricant oil can have no to pass back in the cavity of transmission system 12 with leaking, also can stop the interior lubricant oil of speed reducer to leak from the oil return system mounting hole of end cap 14, play the double action of dynamic seal (packing) and oil return, reach good sealing effect.And ring 27 relatively rotates by the conical surface of contact in sealing outer shroud 26, the sealing, and when this relatively rotated, its taper lapping-in also played the effect of rotating support in the face of central siphon 21 left sides.
Working principle: during speed reducer work, temperature transducer 11 continuous image data, pass to controller 7, when the parameter of transmit is higher than desired temperature, controller 7 sends signal, start oil pump 5, cooling filter 3 is started working, space in oil-sucking hole 8 and conical bearing 18 front portions forms negative pressure, impel lubricant oil in transmission system 12 chambeies to arrive the position of oil-sucking holes 8 through two conical bearings 18 through the path that dotted arrow shown in Figure 1 indicates, enter fuel sucking pipe 6 through oil-sucking hole 8 again, under the effect of oil pump 5, enter cooling filter 3 cold filtrations through oil pipe 4, lubricating oil temperature reduces and oil is further purified, and is back in the cavity of transmission system 12 through return tube 16 and central siphon 21 at last.
Whole system compact structure of the present utility model, technology is simple, utilize the structure space of speed reducer self, after improving on the basis of common speed reducer, added a cold filtration system in its outside, the internal work temperature of speed reducer can be controlled in the proper scope, and internal gear and bearing can obtain good lubricating; And the circulation each time of lubricant oil all will be filtered once, various abrasive particles that are accompanied by the high-intensity work of speed reducer and produce and impurity etc., the filter that all can be cooled filters out, well improved the working environment of speed reducer inside, the life-span of speed reducer and the replacement cycle of lubricant oil have been prolonged, while, whole cold filtration system also played an effect of emitting gas port on speed reducer, and energy balance inner and outer air pressure is avoided the inner fail in compression of speed reducer Sealing and leakage of oil.
Above-mentioned is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Any those of ordinary skill in the art, do not breaking away under the technical solutions of the utility model scope situation, all may utilize said method and technology contents that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all still belongs in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to the utility model technical spirit.

Claims (7)

1. speed reducer, comprise casing (17), end cap (14), transmission system (12) and mounting base (9), described transmission system (12) is installed in the casing (17), described casing (17) one ends are connected with described mounting base (9), the other end of casing (17) is connected with described end cap (14), it is characterized in that: described mounting base (9) is provided with oil-sucking hole (8), described end cap (14) is provided with the oil return system (15) that is communicated with described casing (17) inner chamber, described oil-sucking hole (8) link to each other by pipeline with oil return system (15) and with cooling filter (3), oil pump (5) is connected into circulation loop.
2. speed reducer according to claim 1, it is characterized in that: described oil return system (15) comprises the central siphon (21) that is installed on described end cap (14) gyration center place, offer the spill port (22) that is communicated with casing (17) inner chamber in the described central siphon (21), described spill port (22) links to each other with described oil-sucking hole (8) by return tube (16).
3. speed reducer according to claim 2, it is characterized in that: the gyration center place of described end cap (14) is provided with the oil return system mounting hole, described central siphon (21) is arranged in this oil return system mounting hole, central siphon (21) is gone up an end that links to each other with end cap (14) inner side surface and is provided with dynamic sealing means, described dynamic sealing means comprises pressing plate circle (24), bulging O RunddichtringO (25), the interior ring of sealing (27) and the sealing outer shroud (26) that is sheathed on successively from inside to outside on the central siphon (21), described sealing outer shroud (26) and oil return system mounting hole drive fit.
4. according to claim 2 or 3 described speed reducers, it is characterized in that: described central siphon (21) is gone up an end that links to each other with described end cap (14) outer side surface and is provided with angular contact bearing (33), the inner ring of this angular contact bearing (33) is by inner ring sleeve (29) and interior tightening nut (30) positioning and locking, the outer ring of angular contact bearing (33) and described oil return system mounting hole drive fit, and by outer ring sleeve (28) and outer tightening nut (32) positioning and locking.
5. according to claim 1 or 2 or 3 described speed reducers, it is characterized in that: be connected with controller (7) on the described oil pump (5), be equiped with temperature transducer (11) on described casing (17) outer wall, described temperature transducer (11) is connected with controller (7).
6. speed reducer according to claim 4 is characterized in that: be connected with controller (7) on the described oil pump (5), be equiped with temperature transducer (11) on described casing (17) outer wall, described temperature transducer (11) is connected with controller (7).
7. speed reducer according to claim 6 is characterized in that: described oil-sucking hole (8) is taper or cylindrical.
CN2009203179338U 2009-12-21 2009-12-21 Speed reducer CN201599397U (en)

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Application Number Priority Date Filing Date Title
CN2009203179338U CN201599397U (en) 2009-12-21 2009-12-21 Speed reducer

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Application Number Priority Date Filing Date Title
CN2009203179338U CN201599397U (en) 2009-12-21 2009-12-21 Speed reducer

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506155A (en) * 2011-10-31 2012-06-20 河南恒星钢缆有限公司 Reduction gear oil tank cooling system of steel strand tensioner
CN103836167A (en) * 2012-11-27 2014-06-04 重庆大学 Dynamic coupling device cooling and lubricating system of hybrid electric vehicle
CN104132123A (en) * 2014-07-21 2014-11-05 中国石油天然气股份有限公司 Speed reducer of oil pumping unit
CN104728398A (en) * 2015-03-25 2015-06-24 陕西法士特汽车传动集团有限责任公司 Automobile full-power power takeoff
CN105715934A (en) * 2016-03-21 2016-06-29 西安天厚滤清技术有限责任公司 Method and device for preventing oil seepage and oil leakage of lubricating system
CN105715933A (en) * 2016-03-21 2016-06-29 西安天厚滤清技术有限责任公司 Anti-seepage lubricating system
CN109578560A (en) * 2018-11-15 2019-04-05 南京南邦科技开发有限公司 A kind of car deceleration device heat dissipating method and its device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102506155A (en) * 2011-10-31 2012-06-20 河南恒星钢缆有限公司 Reduction gear oil tank cooling system of steel strand tensioner
CN103836167A (en) * 2012-11-27 2014-06-04 重庆大学 Dynamic coupling device cooling and lubricating system of hybrid electric vehicle
CN103836167B (en) * 2012-11-27 2016-02-03 重庆大学 A kind of dynamic coupling device cooling and lubricating system of hybrid vehicle
CN104132123A (en) * 2014-07-21 2014-11-05 中国石油天然气股份有限公司 Speed reducer of oil pumping unit
CN104728398A (en) * 2015-03-25 2015-06-24 陕西法士特汽车传动集团有限责任公司 Automobile full-power power takeoff
CN105715934A (en) * 2016-03-21 2016-06-29 西安天厚滤清技术有限责任公司 Method and device for preventing oil seepage and oil leakage of lubricating system
CN105715933A (en) * 2016-03-21 2016-06-29 西安天厚滤清技术有限责任公司 Anti-seepage lubricating system
CN109578560A (en) * 2018-11-15 2019-04-05 南京南邦科技开发有限公司 A kind of car deceleration device heat dissipating method and its device

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EXPY Termination of patent right or utility model
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Granted publication date: 20101006

Termination date: 20151221